|
Chip board and method of its making Invention relates to laminar material such as laminar chip boards and to method of its fabrication. Third board has at least three wood layers. At least one mid layer consists of the mix of wood material and foamed plastic (3). Additionally, it comprises at least one foamed natural material (4). |
|
|
Method of cutting logs comprises longitudinal cutting, removal bark from the core parts along the rise, drying, turning and connecting. Longitudinal cutting of log is carried out in parallel with two opposite generants to obtain shortened timber from the log central zone. In core parts obtained as a result of longitudinal cutting of several logs the edges are sawed parallel to the longitudinal axis. After drying and additional processing the obtained semiproducts are turned relative to each other by 180° and connected in a beam. The core part of round timber obtained as a result of longitudinal cutting is turned by 90° and cut into timber of alternating rectangular cross-section. After drying and additional processing the timber of alternating rectangular cross-section is turned to each other by 180° and connected to the shield along the edge. In the uncut timber the bark is removed along the rise at an angle to the sawn wood faces, they are turned by 180° relative to each other and interconnected along the edge to the shield. |
|
|
Method of production of decorative lumber from rounded logs Roundup of log, making longitudinal semicircular laying groove, cross-cutting of rounded log is carried out. Then the log is sawn into segments and the boards, which side surfaces are oriented parallel to the plane of symmetry of the workpiece passing through the middle of the longitudinal semicircular groove. The longitudinal cutting of the log is carried out along the symmetrical planes which are located at a distance of (0.25-0.5)·R from the plane of symmetry of the workpiece, wherein R is the radius of the log. |
|
|
Method of impregnation of timber For impregnation of timber the material is charged into the chamber, the chamber is sealed and vacuum is created in it. Then, the impregnating solution is supplied and overpressure is created in the chamber to a predetermined value. At that the volume of gas evacuated while vacuuming in the chamber is measured. The impregnation process is stopped when the volume of the injected impregnating solution is equal to the volume of evacuated gas. The gas volume evacuated while vacuuming in the chamber and the volume of the impregnating solution injected into the chamber are measured at atmospheric pressure. |
|
|
Invention relates to production of construction materials. To produce particle boards by compaction of wood particle wastes, the latter in 1-3 mm size are mixed with (III) iron chloride in amount of 16.5-22% of wood chips weight followed by compaction at 28-32 MPa and 145-155°C for 20 minutes. |
|
|
Log processing method involves delivery of logs, their sorting as per diameters, debarking and rounding up, sawing of logs into parts, chipping and production of fuel wooden pellets. The logs are sorted as per the diameters and tapering. The tapered logs are sawn into two short logs of an equal length and every short log is sorted as per the diameter with being placed in a short log bin. The sorted timber is piled in an accumulating stack of the respective diameter and length. When every stack reaches the volume sufficient for the shift processing, the timber lot is supplied for sawing. In the beginning of every shift the set-up operators adjust the equipment for the required log diameter and length. |
|
|
Method to check parallelism of setting scale to axis of gangsaw lower front roller Device to check the parallelism of a setting scale to the axis of a lower front roller at a gangsaw comprises a horizontal support with a vertical stopper which are resting against a journal of the front feeding roller, a block level for control position identification and a vertical pole. The vertical pole is fitted with a support bar, an indicator, an adjustment screw and a support bar to rest against the setting scale. The support bar of the vertical pole directly rests against the setting scale and serves as a support for the adjustment screw with the position of the latter being measured by the indicator. The deviation of the setting scale from the parallelism is determined basing on the difference of two measurements of the scale position in relation to the roller journals by a measuring device. The measuring device is rested against two points - the roller journal and the setting scale surface. The measuring device is set in the control position as per the level with the help of the adjustment screw. The adjustment screw rests against the setting scale surface through the support bar which is pivotally coupled to the horizontal support. The level is used to identify the control position of the device. The deviation of the setting scale is measured by the indicator. |
|
|
Method to produce end face board panel elements from wood Method to produce end face board panel elements from wood involves roundup of round timber, cutting of longitudinal grooves, gluing of workpieces into a block, cross cutting. The longitudinal groove cutting is carried out in two opposite planes with the same radius r which was used for the round timber roundup. The groove width amounts to R 2 . The end face board panel elements are produced from the glued blocks by their cross cutting. The longitudinal groove cutting is carried out in three planes set at an angle of 120° to each other with the same radius r which was used for the round timber roundup, and the groove width is equal to the radius r. The end face board panel elements are produced from the glued blocks by their cutting at the angle to the fibres different from 90°. The glued workpieces are cut into thinner end face board panel elements with further gluing of them onto the base from particle boards, plywood or other board materials. The obtained end face board panel elements are cut by the perimeter to produce board panels of a rectangular or parallelogram shape. The obtained board panel elements are impregnated with special fine compositions and are heat treated. |
|
|
Method of bearing-guarding elements of wall timber from small-dimension timber stock Invention relates to woodwork. Log is rounded up and its end is milled to preset shape and separated by sawing. Then, grooves are cut at remainder two-edged cant for warmth-keeping jacket and bearing-guarding elements of composite wall cant are sawn off. Bearing sites of guarding elements feature different width equal to 1/3 width of two-edged cant site. The bearing-guarding element entire surface composed of parts is cut to log-shape surface. At a time, edge-faced timber is cut from two-edged cant in thickness making 1/3 of two-edged cant while workpiece for finishing material is separated sap-wood side is separated from every second blank. One of two elements with preserved sap-wood side in sawn into two identical-height parts. Grooves are milled for insulant composed of sealant cord opposite the site with groove at parts of sawn element. |
|
|
Invention relates to the construction and woodworking industry, in particular to building of support-protecting elements of wall beam of different species from small-sized wood raw material. Cylindering of logs is carried out and their milling along the outer side in order to give finishing materials the predetermined shape with their simultaneous separation by sawing. Then on the remaining dull-edged timber the grooves are milled for insulation and the support-protecting elements precast wall beam are separated by sawing. The support platform of the support-protecting element has a width of 1/3 the width of the platform of the dull-edged timber. The grooves are milled only on the support-protecting element. Simultaneously with obtaining the support-protecting element by sawing a preform is made for finishing material, block house and a protecting element with the width of the platform, equal to 1/6 the width of the platform of the dull-edged timber. From the middle part the board of radial sawing is obtained with the thickness equal to 1/3 the width of the platform of the beam. |
|
|
Platen press, assembly of caul plate and press pad Invention relates to presses to be used for application of amino-aldehyde resin coating on chipboards. Platen press comprises at least one heating plate, at least one caul plate to face pressed material and at least one press pad arranged between caul plate and heating plate. Said pad incorporates tight membrane (3) filled with resilient polymer material and connected with caul plate (5) to form closed space there between. Said space is filled with pad ply material liquid at, at least, platen plate operating temperature. |
|
|
Application of mediators in production of wood-fibre boards Invention relates to wood and/or composite wood materials, in particular to wood-fibre boards, widely used as an initial material in many processing industries. Described is application of a material, selected from the group of phenol derivatives of formula IV, V, VI and their mixture as a mediator in production of lignocellulose-containing moulded articles, in particular the wood-fibre and/or composite materials. Especially preferable materials in the group of phenol derivatives of formula IV are: acetosyringone with R1, R2, R3 = methyl, and syringaldehyde with R1, R2 = methyl, R3 = H; in group of formula V - acetovanilone with R1, R2 = methyl, R3 = H, vanillin with R1 = methyl, R2, R3 = H and ethyl vanillin with R1 = ethyl, R2, R3 = H; in group of formula VI - methylsyringate with R1, R2=methoxy, R3=methyl and vanillic acid with R1, R3=H, R2=methoxy. The said material is applied together with, at least, one phenol-oxidising enzyme with ratio, equal ≥ 0.5 unit/ml of enzyme per 1 mmol of the mediator to ≤ 40 unit/ml of enzyme per 1 mmol of the mediator. Also described is a method of manufacturing the lignocellulose-containing moulded articles with application of the said material and the moulded article obtained thereby. |
|
|
Rounding and milling of a log is performed on the outer side to provide finishing materials with the specified shape with their simultaneous separation by means of sawing. Then, on the rest two-sided log there milled are grooves for insulating material and supporting and enclosing elements of a prefabricated wall beam are separated by sawing. A supporting platform of the supporting and enclosing element has width equal to 1/3 of the width of the two-sided log platform. Together with production of the supporting and enclosing element a workpiece is obtained to obtain finishing material, as well as a workpiece for a block house and an enclosing element, which have width of the supporting platform equal to 1/6 of the width of the two-sided log platform is obtained. Middle part is used to obtain radially sawn boards with thickness equal to 1/3 of the log platform width. |
|
|
Rounding and milling of a log is performed on the outer side to provide finishing materials with the specified shape with their simultaneous separation by means of sawing. Then, on the rest two-sided log there milled are grooves for insulating material and supporting and enclosing elements of a prefabricated wall beam are separated by sawing. Supporting platforms of the supporting and enclosing elements have width equal to 1/3 of the width of the two-sided log platform. Middle part of the two-sided log is used to obtain radial square-sawn timber with thickness equal to 1/3 of the width of the two-sided log platform. Every second supporting and enclosing element is divided into parts, each of which has the platform width equal to 1/6 of the two-sided log platform width. |
|
|
Invention relates to woodworking. Proposed process comprises application of polymer to veneer surface, laying veneer plies in layer one on the other and their hot compaction for polymer solidification. Said polymer is applied to veneer surfaces facing each other at laying. Note here that veneer depth makes 0.5 to 5.0 mm. Veneer plies can vary in number from 3 to 70. Said polymer represents a melamine resin. |
|
Method to manufacture support-barrier elements of wall beam from undersized raw wood Invention relates to construction and wood working industry, in particular, to the method to manufacture prefabricated support-barrier elements from undersized raw wood. A log is rounded and milled at the outer side in order to give the specified shape to finishing materials with their simultaneous separation by means of sawing. Then on the remaining round-edge cant they mill grooves for heat insulation material, and support-barrier elements of the prefabricated wall beam are separated by means of sawing. At the same time support sites of barrier elements are given different width equal to 1/3 and 2/3 width of the site of the round-edge cant. Then the element having smaller width of the site by means of sawing is divided into two parts of equal height. At the side opposite to the site with the groove closer to the sap side, grooves are made by milling for heat insulation material. Parts of the separated element are installed by their flat sites into sites of an integral element, in the grooves of which there is a cord sealant. Then everything is fixed by screws, besides, all components are installed by their sap surfaces at one side. From the support-barrier element at the sap side by means of sawing they separate a stock for production of finishing material. The support-barrier element is milled. |
|
Instrument to measure angles of saw blades Invention relates to woodworking and can be used for measurement of saw blade angles. Proposed instrument comprises base, twp turn sectors and cover. Said base has three scales to measure the rear, front, negative and cutting angles. First sector adjoining the base has sharpening angle scale, turn handles, rectilinear edge to read out the rear angle. Rectilinear edge extends to the other end from sector turn centre into contact jaw to be pressed to measured tooth rear side face. First sector has cut-out to view negative front angle on scale base. turn sleeve is rigidly secured to sector side surface at the centre of turn. Second sector adjoining the first one has front angle scale, turn handle, rectangular edge to read out the cutting angle, sharpening angle and front negative angle. Rectilinear edge extends to the other end from sector turn centre into contact jaw to be pressed to measured tooth rear side face. Contact jaw has the bulge for alignment with contact jaw of the first sector. Solid turn axle is rigidly secured to sector side surface at the centre of its turn and has diametric cut to the depth equal to sector thickness for alignment of measured tooth cutting edge with the sector turn axis centre. Cover is a sector secured to one side of the base so that one rectangular edge is perpendicular to the base symmetry lengthwise axis to make a locating surface. Locating surface is directed through said sector turn axis centre. Narrow rectilinear edge serves to read out the front negative angle. |
|
Method of processing of wood products across the grain in two or more planes of different cross-sectional shapes comprises orientation, locating with the subsequent pressing, feeding and processing along the mutually perpendicular generatrices. Several products are processed simultaneously. The products are moved transversely relative to the longitudinal axis of the product and the longitudinal axis of the processing lines, as well as to the longitudinal axis of the machine. The products are moved towards the processing lines so that in each of the planes all the auxiliary operations are performed simultaneously and automatically. The lengths of the products for simultaneous processing are combined with respect to each other for fulfilment of condition in which their common length should be equal to or closest to the standard inlet length of the workpiece. The products are moved with respect to the stationary electric drives for processing products. The processing operations of each product are divided into groups of operations. Each group of operations simultaneously processes products along their whole length in the same plane. Runtime of all groups of operations should be equal or closely comparable among themselves. Each group of operations is carried out in a separate area. After performing the group of operations the products are moved to the next area. The area of performance of the previous group of operations is freed for processing of the next product. Starting with the number of performance of the group of operations of processing the products in the first plane, corresponding to the number of groups of operations into which the whole cycle of product processing is divided, the processing of products is carried out simultaneously in all the processed planes. The process of simultaneous processing of batches of the products in all planes is repeated until the implementation of complete processing of product batch. Processing of the next batch of products is carried out similarly. |
|
Lumber working and device to this end Invention relates to woodworking, particularly, to lumber processing. Lumber is impregnated in sealed container with modifying solution, dried and heat treated. Blanks are heated and compacted by heaters to be heated to 200°C. Said blanks are compacted by thermal-compression insert increasing smoothly of compaction force from 0 to 30 MPa depending upon heating temperature. Heating and deformation of initial lumber are started with impregnation stage. Proposed device comprises tight housing (1) of autoclave equipped with means for degassing and modifying agent solution feed. Said autoclave housing accommodates the car (6) whereat plies of wood blanks (7) are separated by heating compactors consisting of heater (2), pressure plates (4) and 3D element composed by resilient thermal-compression insert (3). Top limiter plate (5) can be secured at both autoclave housing and car bearing struts. Said heater consists of heating plate with heaters arranged thereon. Said heaters and compactors are arranged in layers over the lumber stack height. Said thermal-compression inserts are made of resilient material reinforced perpendicularly that features high linear expansion factor arranged on both side of said heating plate. Moving pressure plates are secured at said inserts from above and below. |
|
Machine for application of coat on sections Invention relates to woodwork, particularly, to coat applicators. Proposed machine comprises conveyor path for sections and multiple holders arranged along conveyor part. Said holders retain replaceable pressure rollers to make them roll over the section. Said holders comprise latches of retrievable pressure roll pins. Every said pin comprises bearing part fitted in holder channel. Crosswise channel that enters the holder channel accommodates a lock ball loaded by spring into bearing part recess. Said lock ball is retained in pressure element screwed in said crosswise channel. Bearing part recess is composed by continuous groove in bearing part peripheral part. |
|
Processing of wood wastes in production of fibreboards Invention relates to wasteless and resource-saving technologies in production of fibreboards and to non-polluting process of recovery and processing of timber wastes. Proposed method comprises mincing wood lumps, say, inactivated finer-bearing wastes of fibreboard production. Said wastes ate batched to layered dry grinding in clearance between rotor blades and stator counter blade with subsequent grinding, fibrillation and separation at fire grate to produce internally and externally fibrillated bond-forming fibre. |
|
Method of bearing-guarding elements production of wall timber from small-dimension timber stock Invention relates to woodwork. Log is rounded up and its end is milled to preset shape and separated by sawing. Then, grooves are cut at remainder two-edged cant for warmth-keeping jacket and bearing-guarding elements of composite wall cant are sawn off. Bearing sites of guarding elements feature different width equal to 1/3 width of two-edged cant site. Simultaneously with production of bearing-guarding elements, edged-surface lumber its thickness making 1/3 of the area of two-edged cant site is made by sawing the mid part of said cant. Element with site width equal to 1/3 of that of two-edged cant site is sawn to two parts of equal height. Grooves are milled for insulant composed of sealant cord opposite the site with groove at parts of sawn element. Every second solid element is screwed with lumber of similar cross-section. |
|
Method of production of thermo-impregnated wood and device for its implementation For production of thermo-impregnated wood the wood is simultaneously dried, impregnated and thermo-modified by immersion the preform in the impregnating composition and subjecting to physical field action. The ratio of the impregnating composition to the volume of the loaded wood is not less than 2:1. Initially the preforms are placed in 2 or more non-insulated baths of smaller size, located in the basket, and then all together they are immersed in a common insulated bath with the impregnating composition, and the impact on the preform is carried out by creation of elastic disturbance of the pulsed nature with the amplitude of more than 200 dB. The device for production of thermo-impregnated wood comprises an insulated bath 1, an impregnating composition 2, a heater 3, metal non-insulated baths 4 with an open top, a basket for loading preforms 6, a non-tight lid 7 including water-cooled parts 8 mounted obliquely. A horizontal part 9 of the bath 1 is provided with a system for collecting and discharging the vaporised liquid. A pipe 10 is located above the mirror of the impregnating composition 2 and is connected to the pump for smoke and vapour recovery of the impregnating composition 2. On the outer wall of the bath 1 an emitter 11 of the pulse generator of elastic disturbances is mounted. The heater 2 is connected to the supply mains through a thermostat controller 12. |
|
Invention relates to woodworking, particularly, to crosswise sawing of tree lengths or trunks to cut-to-length sections for production of billets. Proposed plant comprises trunk drive composed of feed and take-up conveyors, billet length measurement device, two trunk locking devices and sawing mechanism with saw mounted at the frame. Besides, it comprises all-in-one nearing frame to support two spaced apart frames of locking device. It includes frames of said feed and take-up conveyors and two struts of billet length measurement device arranged under take-up conveyor frame. Said billet length measurement device is composed of a thrust with damper including triangular plate. Saw frame has servicing platform and is arranged to make saw cut at constant place from damper triangular plate and in symmetry relative to vertical line extending through lengthwise mirror axis of trunk drive. Said saw is arranged between said trunk locking devices. |
|
Method of bearing-guarding elements of wall timber from small-dimension timber stock Invention relates to woodwork, Log is rounded up and its end is milled to preset shape and separated by sawing. Then, grooves are cut at remainder two-edged cant for insulant and bearing-guarding elements of composite wall cant are sawn off. Bearing sites of guarding elements feature different width equal to 1/3 and 2/3 widths of two-edged cant site. Element with site width equal to 1/3 of that of two-edged cant site is sawn to two parts of equal height. Grooves are milled for insulant composed of sealant cord opposite the site with groove at parts of sawn element. Element with site width equal to 2/3 of that of two-edged cant site is sawn to two parts of equal to 1/3 of said cant. One of said parts is similar to guarding element with width equal to 1/3 of cant side width while second part is an edge-surfaces lumber. Lumber of identical cross-section is fitted instead of sawn off lumber and screwed in place at guarding element. |
|
Tool assembly and tool for cutting or sawing machine Invention relates to tools for cutting or sawing machine. Tool assembly comprises first tool with shaped disc cutting plate, plate first leading element and second part. note here that the latter comprises either plate second leading element, or second tool including shaped disc cutting plate and second plate leading element. Note here that first tool is locked at second part by central clamp. Note also that every cutting plate comprise central hole formed by central edge and peripheral cutting edge that make the tool working part. Note that leading elements of the plates can rotate along with shape disc cutting plate about rotational axis. At least, one of leading elements comprises peripheral leading surface to interact with endless drive. Every plate leading element comprises central locking part including at least one hole for clamping first leading element at second leading element by central clamp. At least one shaped cutting disc includes at least partially recessed section nearby central hole. Note here the recessed allows locking of shaped cutting disc at appropriate plate leading element by clamping said recessed section axially between main part and plate supporting part of appropriate leading element to make, in fact, a flat outer surface of every tool extension. |
|
Method and device to perfect cutting machine blade locking structure Invention relates to perfection of cutting machine blade design. Cutting machine comprises cylindrical cutting disc and wearing segment. One end surface of cutting disc has one or several cutting blades extending, in fact, radially relative to said disc. Wearing segment serves to support said blade. Cutting machine has wearing surface arranged behind the bale for production of stresses caused by timber cutting. Blade at least its one element is arranged to rest on the blade and on wearing surface. Wearing segment surface makes a part of a portion of desirable size of wearing surface. Coating is applied on said segment surface for protection against said stresses. Said wearing segment is composed by two or more consecutive parts. Said coating is applied by high-rate plasma-gas spraying of at least one carbide layer. Blade segment is secured to cutting disc by two bolts extending there through, welding or by combination thereof. |
|
Method of making end board elements from wood Invention relates to woodwork and cab be used in construction for production of end parquet planks, facing boards, etc. Proposed method comprises the timber roundup, chasing, drying, gluing the blanks together and transverse cutting. Chasing is made in two mutually perpendicular planes to radius of blank roundup. Chase width makes R 2 . End board elements are produced from glued blocks by their transverse cutting at the angle to fibres other than 90 degrees. Cutting of glued blanks are cut to thinner board elements to be glued onto substrate of wood particle boards, veneer or other board materials. Produced elements are cut over perimeter to make rectangular boards. |
|
Method of 3d article surface coating with natural wood ply Invention relates to woodworking. Produced 3D coating complies in shape with that of the article decorative surface. Coating is made of 3D timber workpiece with surface making an inverse replica of the article decorative surface. Timber workpiece is rigidly secured to the article decorative surface. Then, excess timber ply is removed from timber workpiece to produce preset timber ply exceeding minimum tolerable depth of machining for used timber type. Minimum stiffness of coated article should rule out the strain of timber workpiece on said article/ Minimum depth of timber ply is selected subject to physical, biological and mechanical properties of used timber. Coating is made of integral or glued timber workpiece. Article decorative surface timber ply depth is not regular. Coating depth makes 0.3-3.0 mm. Timber workpiece is secured to article decorative surface by expanding glue. |
|
Invention refers to accelerated drying of different kinds and cross sections of timber by means of equipment providing moisture transfer by action of relatively high temperatures, moisture content and alternating-sign pressure. A method for timber drying in a chamber isolated from atmosphere involves heating of a drying agent by means of heating devices connected in upper part of a shell as per a parallel scheme to main pipelines, devices for heating and circulation of high-temperature liquid heat carrier, reversible fans and flow dividers, which provide flow and distribution of the drying agent along a pile through diffuser channels, each of which is symmetrical to rows of gaskets of the pile, moisture levelling along the timber cross section by a moistening system with further exposure, removal of the drying agent from the chamber to a condensation device and control of a technological process by means of pressure, temperature and humidity control devices. A new feature of the proposed invention is that timber heat treatment is performed by hot recirculating water till average temperature of 35-45°C is achieved, which softens it, equalises humidity and quickly unfreezes it during winter season, by filling the chamber to upper pile level by means of an additionally introduced pipeline circuit provided with possibility of water return or transfer to the next chamber, and the heating process is continued by a steam-and-air drying agent till evaporation temperature is 100 to 120°C, thus maintaining the pressure of up to 1000 mm Hg; with that, the steam-and-air drying agent is removed from timber depending on timber type by constant or periodic vacuum pulses with further vacuum treatment by a vacuum pump till the pressure in the drying chamber is 100 to 150 mm Hg. |
|
Device for impregnation of wood under pressure from wood end Invention relates to woodwork, particularly, to equipment for through impregnation of wood with fluids. Proposed device comprises welded frame 1 with metal tube 2 secured thereto, left taper nozzle 3, right taper nozzle 4, ultrasound radiator 5 acting radial direction, impregnation fluid tank 6, hydraulic pump 7, pressure gage 8, pressure pneumohydraulic accumulator 9, hydraulic pulsator 10 with check valve, auxiliary pipeline 11, water collection tank 12, horizontal hydraulic cylinder 13, ultrasound radiators 14 acting in horizontal direction. Extra ultrasound radiators are secured in metal tube generatrix to get in contact with processed wood at spacing multiple of half the ultrasound wavelength in wood. Hydraulic pulsator incorporates encased distribution mechanism composed of the shaft with mutually perpendicular bores and working fluid feed channels that allow working fluid oscillation frequency of 0.3-10 Hz and amplitude of 0.1-0.2 mm. |
|
Protector for portable tools with heat engine to shut them off at abrupt shifts Invention relates to portable tool protector, particularly, to protector of chain saw with heat engine. Proposed protector comprises at least one electronic accelerometer to measure acceleration in at least one plane or in one axis. Accelerometer outputs are connected with electric and/or electronic control means that makes an electric and/or electronic control circuit. The latter and accelerometer are supplied from known electric current generator driven by heat engine. Electric or electronic control circuit allows processing of analogue or digital electric data from accelerometer and driving the means for, in fact, immediate shutdown of said heat engine. Means to drive the electronic ignition unit represents a system to actuate programmable heat engine ignition advance for engine shutdown. This causes the torque inverse to normal working torque acting as a high-power brake initiating immediate engine shutdown by electronic circuit to drive the electronic unit or being connected in said electronic ignition unit. |
|
Invention relates to machine building and can be used in cutting materials, in particular, wood, metals, plastics and/or composites. Proposed tool can revolve about rotational axis and comprises at least one row of separate cutters arranged in circle with cutting edges overlapped at least partially. Said cutting edges have a lip angle and are located at ≥55° to <90° to rotational axis. Said lip angle is larger than 55 degrees. |
|
Method and device for checking track for parallelism with log frame lengthwise axis Invention relates to woodwork and can be used for checking the track for parallelism with log frame lengthwise axis. Proposed method comprises vertical transfer of log frame lengthwise axis direction set as tightly stretched string to rail level and measurement of difference of distances from obtained pint to one of the rails at different points over track length. Transfer of string projection on rail level is executed with the help of reference square and device composed of two plane-parallel supports, main support with bottom thrust for location over rail head inner surface and auxiliary support to make a metrological basis. Difference in distances from top thrust is measured by contact method with the help of indicating gage or trammel. Device for checking the track for parallelism with log frame lengthwise axis comprises two supports, reference square and level gage. Auxiliary horizontal support with adjusting screw and top thrust and main horizontal support with bottom thrust are composed of two plane-parallel bars. Horizontal supports are arranged across the track and set horizontally by level gage with the help of adjusting screw. Bottom thrust serves to locate the main support over rail hear working surface. Top thrust at auxiliary support serves to secured the metre thereat. |
|
Work table for processing machines Invention relates to work table for saw discs and/or trimming saws. Work table has workpiece support composed by table surface and workpiece props located beyond table edges. Every prop is mounted at table under its surface by means of rotary bracket to allow the prop turn parallel with table surface. Two props are arranged coaxially by means of their brackets and common support angle to allow angular adjustment of props relative to each other. Said peripheral area is formed by table plate angular rear part terminating in table rear edge. |
|
Manually directed working tool and method of its fabrication Proposed tool has at least one working element driven by ICE. Said ICE has crankcase composed, at least partially, of crankcase oil pan. Working tool has body part made of plastic. Crankcase oil pan consists of metal and is built in working tool body part. ICE has ignition comprising ignition module. The latter is arranged directly at crankcase metal pan and stays in electric contact therewith. In fabrication of working tool, its support is placed on crankcase oil pan before filling said pan with body part material. |
|
Invention relates to motorised tools, particularly, to chain saw driven by compact engine. Chain saw comprises engine with crankcase, cylinder and piston reciprocating in the latter. Chain saw housing accommodating said engine is composed of an integral part with lateral, top and bottom surfaces. Said engine is fitted in the housing on the side opposite the lateral surface. Besides, said chain saw comprises guide bus attached to the housing lateral surface to and covered by saw chain for chain saw to be driven by said engine. Said engine is arranged in housing so that its crankshaft extends through housing lateral surface. Engine has two surface, in fact, parallel about crankshaft axial direction and closed by housing top and bottom surfaces and secured thereto. Engine is attached to housing side by retainer on the side on guide bus attachment to said housing. Note here that said engine attachment is located between guide bus attachment and crankshaft. |
|
Method of corkboard production Invention relates to production of corkboards to be used as heat insulators in refrigerators' and construction. Proposed method comprises preparation of cork chips, their compaction to boards, heat treatment at 290-300°C and cooling down. Before compaction, said chips are mixed with waste fibers of the wool primary processing. Note here that said wastes make 1% to 10% of the volume of chips. |
|
|
Invention relates to woodwork and can be used in whatever industry for cutting of materials. Proposed mill comprises body with every cutting blade secured by retainer plate. Blade fastening assy has taper-cylinder screw pair. Inclined cylindrical grooves at clamping plate cocks serve to interact with conical surfaces of screw head and nut. Body seat cylindrical groove serves to interact with cylindrical surfaces of screw head and nut. Inclined cylindrical grooves at clamping plate ends and body seat cylindrical groove are located parallel with mill axis and aligned with said taper-cylinder screw pair. |
|
Invention relates to woodwork and can be used for crosswise sawing of timber. Proposed machine comprises the bed, sawing mechanism and drive mechanism. The latter is composed of welded frame fitted in bearings mounted on vertical and horizontal shafts inside "П"-like guides. Sawing mechanism is rigidly fixed atop said frame and consists of sawing shaft with saw and idle pulley fitted on shaft free ends and with drive pulley is fitted on opposite side and engaged via belt gearing with motor. Note here that said idle pulley is engaged via belt gearing with cylindrical reduction gear with electromagnetic couplings fitted on its output shafts engaged via sprockets and belt with feed mechanism. Feed mechanism comprises conical reduction gear, belt drive, drive rolls and limit stops. Note here that belt drive shaft and drive mechanism at extreme left position have locking device composed of alternative electromagnets. |
|
Line for manufacture of chipboards Line for manufacture of chipboards comprises a belt conveyor, a machine for forming chip mat, before and after which the sprinklers with valves are installed, the press and the measurement unit of crook of the boards, placed after the press, which outputs are connected to the control inputs of the valves. The sprinklers consist of several parts with appropriate valves, placed transversely to the direction of manufacture. The measurement unit of crook is provided with additional amplifiers and sensors of the plate thickness, located over the lateral edges of the finished board. |
|
Binder comprises the condensation resin based on aldehyde, additives and reaction water-soluble additive comprising the mixture of peptides/amino acids free of high viscosity and water-insoluble proteins. Also, a method of manufacturing the binder and the moulding product are proposed. |
|
Part of furniture comprises wood composite material and facing in the form of paper and resin film material based on the paper with weight of 70-80 g/m2 and impregnating thermosetting formaldehyde-containing polymer. The wood composite material comprises formaldehyde in an amount of not more than 4 mg per 100 g of the board. The thermosetting polymer comprises melamine in an amount of not less than 25 g/m2 of the film. All the plates and all edges of the furniture part are faced and all its technological holes are sealed. Formaldehyde emission from the part of the furniture does not exceed 0.01 mg/m3 after its exposure in the conditions simulating the operating conditions, till stabilisation of the formaldehyde emission indicator. |
|
|
Feeding speed and cutting speed are adjusted. The consistency of feeding to the tooth is provided. The average cutting speed of the bandsawing machine is predetermined, and at this cutting speed the feeding speed is calculated with the restriction on sawing accuracy depending on the height of cut taking into account the parameters of the machine and the saw. The feeding speed with the restriction on surface roughness of sawn wood products is equated to the calculated feeding speed with the restriction on sawing accuracy. The corrected value of cutting speed is calculated, and the feeding speed is clarified with the clarified cutting speed. |
|
Method of abrasive air processing of timber of "blues wood" Invention relates to woodworking, particularly, to production of 3D images on wood surfaces. Workpiece is connected with current conducting thrust. Air jet and abrasive are forced at 1.5-5 atm at a time into mixing chamber to create abrasive air jet. Said air het is fed to definite point of wood surface via nozzle. Said nozzle is displaced over the entire area of wooden workpiece. Note here that said jet is fed at stationary relative position of the nozzle and workpiece at the distance of 0.40 mm at the angle of 5-90 degrees to workpiece surface. |
|
|
Plant for separation of birchbark from bast Plant for separation of birchbark from bast comprises a frame, a separating device, a receiving hopper and receiving devices for bast and birchbark. The unit is equipped with two vertical splined shafts. On one of the splined shafts the ellipsoid-shaped rollers are fixedly mounted, along the generants of which the teeth and cavities are made. On the other splined shaft opposite the fixed rollers the similarly shaped rollers are located with the ability to change a position in the vertical plane. Both shafts have the ability of counterrotation through the belt drive from the electric motor. |
|
Proposed processing assy makes an integral part of machine tool with throughout feed and comprises tool unit with machining tool, guide roller and drive. Machining tool cuts drive and/or driven side during the feed job and its edges and angles. Guide roller separates cutting tool from workpiece and rolls there over and is secured to displace relative to cutting tool. Said drive actuates said cutting tool. Fastening unit is arranged at said assy to displace said guide roller relative to cutting tool, parallel with workpiece support plane and with feed direction, or perpendicular to feed direction. Said fastening unit is displaced by said drive. |
|
Sawing tool for hand-held chain electric saw Proposed sawing tool comprises frame 1 with crossbars 13, 14, tabletop 2 with cutout 3, sawing mechanism, crank mechanism and sawing mechanism feed electric circuit 15 with switch 16. Crank mechanism consists of crank holder 4, crank axle 5, tenon 6 and fastener 7. Sawing mechanism is composed of hand-held chain electric saw. Said saw is secured to crank mechanism so that chain fits in tabletop cutout. Sawing mechanism starter 10 is furnished with retainer 9. First damper 11 is connected by one side with first crosswise frame and, on opposite side, with saw handle. Second damper 12 is connected by one side with second crosswise frame and, on opposite side, with saw handle. One of said dampers that feature higher tensioning force is arranged on crossbar side to create acute angle between saw chain and article to be sawn. |
|
Processing machine, mainly, table saw disc with lower position of said disc Invention relates to electrically drive table saw disc. Proposed machine comprises workpiece support and rotary tool with circular area removing workpiece material. Position of tool and support relative to each other in vertical direction perpendicular to that support can be adjusted. Tool in working position has working zone extending above said support. In operation, relative position of tool and support in vertical direction is effected in response to signals from pickups. Tool working area par extending above workpiece features radial height makes the part of radial height of aforesaid circular area. |
|
Invention relates to woodworking and is intended for proportioning, mixing and application of liquid two-component glue in production of glued timber. Proposed applicator comprises frame, glue tanks, proportioning system, mixer, glue application system 5, glue application tube and flushing system. Proportioning system is composed of two duplex piston pumps 8 with valve distribution 9 and controlled linear drives 10. Every said pump is composed by to piston cylinders with head ends connected with valve distributors while rod ends are connected to flushing system. Piston cylinders are connected with common controlled linear drive 22. Said drives are composed of hydraulic cylinders 23, 24 connected with hydraulic station controlled pump 25. Mixer is composed of a chamber with mixing adapter fitted on controlled drive shaft communicated via channels and pipelines with proportioning and flushing systems and whereto flue application tube is connected. Additionally, centring device 26 is used. It is composed of vertical rotary frame with mixer and duplex piston pumps, two spring-loaded guides with rollers being connected with said frame by vertical swing axle. |
Another patent 2513424.