Method and filling station for cavity filling
FIELD: building, particularly to fill cavities in articles.
SUBSTANCE: method involves feeding article having at least one cavity by conveyer; providing filling station; positioning the article under vessel with filling material as viewed in vertical plane; filling the cavity with filling material along with simultaneously shaking the article; removing the article with filled cavity from the filling station by conveyer. Filling material is pumped under pressure created by rotor blades. The rotor is installed in the vessel. Filling material poured in the cavity is stirred and simultaneously compacted by pressure application during cavity filling or after filling operation termination. Filling station comprises vessel with filling material made as supply bunker, conveyer to move trays each having one article arranged in the tray, compacting means adapted to fill cavity with filling material under pressure. The compacting means has at least one rotor with guiding blades installed in vessel. The blades are secured to at least one cantilever holder and provide supply of filing material to at least one cavity of the article.
EFFECT: increased uniformity of hollow block filling.
15 cl, 4 dwg
The present invention relates to a method and to a filling station for filling cavities in products primarily for automatic filling of cavities in hollow blocks of concrete or other similar material, having a container with filler, made primarily in the form of a feed hopper, and a conveyor for moving pallets, each of which has at least one product with filled cavities.
Usually to improve the insulating properties, for example, hollow concrete building blocks available in these hollow blocks, cavity fill out the appropriate placeholder. As such fillers are used, for example, a very light mineral materials that have granulomatous consistency and that shortly before filling their cavities of hollow blocks mixed with the adhesive emulsion. Subsequently this mixture of the filler to the adhesive emulsion is solidified in the cavity of the concrete blocks.
Filling cavities in such shaped concrete blocks partially performed manually, which is associated with a significant amount of time. From the application DE 3037409 A1 is known a method of manufacturing a hollow block, a cavity which is filled in its fresh, not yet fully hardened condition dry or sweger the prepared mortar, which in some cases add a light filler and/or a blowing agent. Filling cavities in fresh hollow block is a device with a hopper, which can be moved around a perforated table above hollow block, allowing for the flow of mortar through the holes in the perforated table in the cavity of the hollow block. For uniform filling of the cavities of hollow blocks with mortar perforated lifting table is subjected to shaking with provided his vibrators.
However, with this known device it is impossible to provide a meaningful sealing filler in the cavities or chambers of hollow blocks, and therefore, in filling these chambers the material can be any air inclusions. In addition, the filler may be in the process of solidification in the cells to provide additional shrinkage, resulting in a cavity in the hollow blocks are filled with filler not completely.
Based on the foregoing, the present invention was based on the task to develop such a method and such a filling station specified at the beginning of the descriptions of the types that would uniformly and in a short period of time to enter the placeholder with a certain degree it is the seal in the cavity of products, first of all, in the camera of hollow blocks.
This task is solved according to the invention by using a method in accordance with which the first at least one product with the existing cavity serves via conveyor to the filling station, then at least one item by moving it relative to the tank with a filler positioned under, when viewed in a vertical plane, this tank with filler, then fill with placeholder at least one cavity of at least one product, at the same time subjecting him to shake, and in the end it is at least one item with a filled cavity or cavities away with the conveyor of the filling station, and the filler in addition to the shaking condense in the process of completing them at least one cavity and/or directly at the end of this process.
This method allows almost automatically fill in the filling station of the cavity in the one or more products, such as hollow blocks or other similar articles, filler and seal it. The use of a conveyor for conveying products to fill voids in the filling station and diversion of products with the filled cavities from it allows you to negotiate about the ECC movement of the articles with the process of filling cavities in them. In turn, the shaking of products in the process of filling available cavities facilitates the flow of fluid filler in the cavity and its subsequent penetration into them. The seal of the filler in the cavity to which it is subjected simultaneously with the process of filling of cavities or at the end of this process, provides rapid and complete filling of the cavities in the product filler. Thus manages to avoid the formation of large air pockets in the filler and additional shrinkage and to ensure the filling of existing products cavities completely up to their upper edges.
The filler is preferably pumped at least one cavity under the pressure created by using the rotor blades, installed in the containing this aggregate capacity. This guides the rotor blades supply aggregates within the containing vessel to the cavities and at the same time the application thereto of pressure, which is the seal of the filler in the cavity of the product.
Alternative or in addition, the filler can be subjected to condensation in at least one cavity using a punch or similar device. The dimensions and shape of this plug is consistent with the size and shape of the cavity in the product, allowing the plug on the I seal located in the cavity filler can freely enter it. For the application to aggregate certain pressure and thereby to seal the plug can be provided, for example, pneumatic or hydraulic lifting and lowering device. In addition to pre-create vibrations in the process of filling cavities with a filler product can also result in vibration by using one or more vibrators and seals placeholder pressed in the cavity by the punch or similar device.
According to one embodiments of the invention for one working cycle is proposed to simultaneously fill the fill cavity of several products. A related advantage is the ability to increase performance when filling cavities in the products offered in the invention method, and thus improve its efficiency.
The placement of the conveyor at a distance in the vertical plane from the tank with the filler allows you to integrate a filling station in existing production lines, equipped with such a conveyor. In this case, at least one product for its positioning under the tank with filler, you may want to raise with the conveyor in a vertical direction by the lifting of the table.
Preferably continue to monitor the fill level is the appropriate fields in the containing vessel by means of the probe and when it falls below a certain preset level to fill this tank with fresh filler. Due to this, the amount of filler in the containing capacity is sufficient to fill the cavities in the product level.
According to another variant embodiment of the invention for filling at least one cavity filler containing its capacity, move with suitable mechanism for moving the position of at least one product, and after filling the filler again divert away from this at least one product from this at least one cavity, at the same time moving the punch to a position above that at least one product. The filling of cavities filler and seal them takes place in two successive stages required for each of which the equipment, i.e. a container with filler and punch sequentially moved to a position above the product or products at least one cavity.
The duration of each working stroke in the implementation proposed in the invention method is from 10 to 60, especially from 15 to 30 C. Such repetition cycles of operation allows to achieve high performance when filling cavities in the products offered in the invention method, and thereby to increase its economic efficiency.
In relation to fill Inoi station specified at the beginning of the description of the type underlying the invention is solved thanks in this filling station is provided by the sealing device, designed for filling at least one cavity in the product filler with attached pressure. Products available in their cavities, such as hollow blocks or other similar articles, individually or in groups served are installed on the pallet in a predetermined operating cycle in the filling station by the conveyor. The application of pressure to the filler when filling of cavities in the products facilitates its penetration into these fill the cavity in the products and at the same time provides a seal in these cavities. This avoids the formation of shrink holes or similar defects in the aggregate due to insufficient filling of cavities or incomplete filling of the cavities in the product filler because of its subsequent shrinkage. Moreover, due to the proposed invention the solution ensures complete filling of the cavities in the products, ie, for example, cameras in hollow blocks up to the top edge of the product.
The sealing device may be formed of at least one located in the tank with the filler rotor with vanes which are mounted on at least one cantilever holder and which supply will fill the La at least one cavity in the product. The placeholder is pumped under pressure to the cavity of the product, for example in cells of hollow unit, and sealed them in.
According to a preferred variant of the proposed invention in a filling station in a vertical plane above the conveyor is removable perforated sheet, the holes which are distributed in accordance with the location of the filled cavities in at least one product, and each such hole perforated sheet and/or sheet spacers form a channel, the cross section of which corresponds combined with the cavity in the product. In this channel in addition to the filler, penetrating into the cavity of the products under its own gravity, forming an additional layer of padding that can then be lowered into the cavity. This additional amount of filler allows, therefore, to compensate for the decrease in the level of filler in the cavity during the process of compaction. Above the perforated sheet may be made of metal, plastic, or other acceptable material. Perforated sheet to change its thickness and thereby the capacity of its forming channel holes, you can perform the replacement and replace it as necessary in filling stations or it can perform the stacked or composite of several plates plate spacers, add in a filling station or remove it as needed.
While the sealing device may have the punch with the tabs, the distribution of which it corresponds to the location of the filled cavities in at least one product. Such existing punch the tabs can be dropped into the channels of the perforated sheet with a certain pressure for extrusion in them filler in the cavity of the product.
The punch preferably kinematically associated with lifting and lowering device, designed to create a static or adjustable load pressure applied to located in the cavities to fill. Such lifting and lowering device may represent, for example, a hydraulic or pneumatic cylinder or linear actuator.
According to one embodiment of the filling station conveyor equipped with a lifting table, which should increase with the conveyor pallet with at least one located on the product and to position the pallet in a vertical plane under the tank with filler. When lifting such a lifting table products pressed from below by a perforated sheet. Thus, the filling station can be integrated in existing production lines with conveyor, for which capacity is ü with the fill should be placed above the conveyor and to bring to it using the lift table in consistent with the work rhythm the rhythm of one pallet with one or more installed products with fill cavities.
More uniform filling of the fill cavities in the products can be ensured by embedding lifting table at least one vibrator. The use of the lift table in combination with at least one vibrator provides uniform distribution of the filler in the cavity not only in the process of filling them, but in the process seals in them.
Tank with filler preferably be equipped with a probe for level measurement inside the placeholder. This allows you to control the level of aggregate in the containing vessel, and as necessary to periodically add new placeholder. In this embodiment, the filling station can eliminate the accumulation in the tank with the filler is too large quantity and thus prevent the solidification of the adhesive emulsion in this capacity, and on the other hand, however, always be kept in this capacity sufficient to fill the cavities in the supply of products placeholder.
Filling cavities in the products of the fill and compaction can occur periodically in two stages in the case, if the tank filler made moved transversely to the direction of movement of the conveyor between a work position, in which the filling of existing products floor the property, and where it is located in a vertical plane above a perforated sheet and a non-working position in which it is closed. When this tank with filler, when it is in the off position, is closed from its lower side adjacent leaf shutter. When shifting the same tank with the filler in working position, its lower side is opened and communicated with the holes in the perforated sheet through which the filler can enter the product cavity. After that, in the cavities of the filler can, again pulling the tank with filler in the non-operating position, in which it is closed to expose the seal to a certain extent, for example, using a punch.
Below the invention is described in more detail on the example of some variants of its implementation with reference to the accompanying drawings on which is shown:
figure 1 is a schematic side view of the proposed invention the filling station,
figure 2 is a top view shown in figure 1 of the filling station,
figure 3 is a top view of the filling station, made according to another variant, and
Fig 4 is a perspective view of the product with the filled cavities.
Figure 1 shows a filling station 1, intended to fill the cavities 2 in various products 3. As an example of such a product can be called is shown in figure 4 hollow concrete block, to whom m has several slit-like chambers or cavities 2.
Filling station 1 is located, when viewed in a vertical plane above the conveyor 4, which runs perpendicular to the plane of the drawing of figure 1 and which sequentially move the pallet 5 with mounted products 3 fill cavities. This conveyor 4 may be part of the production line for the manufacture of products with fill cavities, ie, for example, a production line for the manufacture of hollow blocks. In the vertical plane under the pallet 5 in the filling station 1 is located elevating table 6 with at least one built-in vibrator 7. In the vertical plane above the pallet 5 in the filling station 1 is the capacity of 8, made in the form of feed hopper and containing filler 9.
Capacity 8 for a placeholder is a closed sides and top, but the open bottom of the box is moved along the guides 10 transversely to the direction of movement of the conveyor 4 between a non-working position in which the container filler is closed, and is shown in figure 1-3 working position, in which the filling of existing products cavities. The displacement of the vessel 8 to the left in the plane of the drawing of figure 1 in the off position it is above the stationary leaf shutter 11, hermetically closing it with an open bottom side. For p the motion of the vessel 8 for a placeholder between the off position and the working position is schematically shown in figure 1, the actuator 12.
In addition, with leaf shutter 11 Rethimno connected adjacent and located in the filling station 1 at the same level with him over the conveyor 4 perforated sheet 13 made of metal, plastic or other material. The shape of the cross section and the number available in that the perforated sheet 13 holes 14 consistent with the cross-sectional shape and number of fillable cavities 2 products 3. In addition, perforated sheet 13 has a certain thickness, and therefore the holes 14 formed in it a kind of channels ending in filled cavities 2 products 3.
As shown in figure 2, in the vessel 8 is designed for uniform distribution into the filler 9, the rotor 15 with three cantilever holders, each of which is mounted on the guide blade 16. These vanes 16 of the filler 9 is fed in the direction of the perforated sheet 13 and squeezed them into the cavity 2 through the holes 14.
Shown in figure 3 of the filling station 1 differs from the above-described variants of its implementation to the fact that in the tank 8 for a placeholder there are two rotor 15. Due to this it is possible to increase the covered vanes 16 size without reducing the width of the container 8. This enables more efficient Vidal is of the filler 9 in the channels of the perforated sheet 13.
On the top in the plane of the drawing of figure 1 side of the tank 8 is the probe 17, which is controlled by the level inside the filler 9. When fall is in the tank 8 of the filler 9 is below the minimum allowed this tank 8 can be replenished with fresh filler 9, as indicated in figure 1 by the corresponding arrow.
On the right in figure 1-3 (a) schematically shows a plug 18 having multiple protrusions 19, whose distribution it corresponds to the location of the cavities 2 in the products and holes 14 in the perforated sheet 13. Such protrusions 19 can use the appropriate lifting and lowering device 20 is omitted for the application of a certain pressure to the filler and re-raise. The punch 18 together with its lifting and lowering device 20 can be moved in a plane above the perforated sheet 13, which when retracted non-operating position of the container 8 with the placeholder allows you to accurately line up the tabs with 19 channels in the perforated sheet 13 and enter them in these channels.
Below more in detail the process of filling the cavities 2 in the products of 3 types, for example, hollow concrete blocks. Product 3 after molding and curing in the production process on the production line, which is not shown, individually or in groups, as shown in figure 1, serves the Xia installed on the pallet 5 in the filling station 1 by the conveyor 4. As soon as the movable conveyor 4 tray 5 with one or more located on the product 3 is under the perforated sheet 13, the pallet 5 begins to move vertically upward lifting table 6 to the stop products 3 of their top side in perforated sheet 13. In this position the holes 14 in the perforated sheet 13 is combined with underneath filled cavities 2 products 3.
After that, the container 8 with the placeholder is moved by the actuator 12 in the horizontal direction it is shown in figure 1-3 working position. As such movement of the vessel 8 into the filler 9, for example, a mixture of light having the form of granules of mineral material with an adhesive emulsion begins to flow through the openings 14 in the perforated sheet 13 in a fillable cavity 2 products 3. While vanes 16 of the rotor 15 when it is brought into rotation additionally creates the pressure, under which the filler 9 is forcibly pressed into the cavity 2. Simultaneously, the pallet 5 together with placed on it by articles 3 provides vibrator 7 in vibratory motion, which facilitates the penetration of the filler 9 in the cavity 2 and at the same time it provides a preliminary seal cavities 2.
After complete filling of the cavities 2 in articles 3 and channels in perf arowana sheet 13 filler 9 capacity 8 again given her the actuator 12 in the horizontal direction in the off position. Simultaneously, the punch 18 is shifted to a position above the perforated sheet 13, and then the punch projections 19 are pressed lifting and lowering device formed by the holes 14 channels, and can also be powered by at least one vibrator 7. The result is by dispensed in the cavity 2 additional quantity of filler 9 of the channels it is condensed to a certain extent. In this way the variation of the thickness of the perforated sheet 13 can adjust the degree of compaction of the fill of the cavities.
Upon completion of the above operation, the pallet 5 is located on the product 3 is filled cavities decreases again lifting table 6 on the conveyor 4, which the pallet 5 with its products 3 with the filled cavities is moved from the filling station and at the same filling station 1 is the next pallet 5 with its products 3 fill cavities.
In the process of such change of pallets in the container 8 by means of rotating the rotor 15 is supported homogeneous consistency into the placeholder. The level of filler in the tank 8 is controlled by the probe 17, and when it falls below some specified level of capacity 8 can be replenished with fresh filler 9 to fill it is rashodovana number.
The above method allows evenly and over a very short period of time to enter the filler 9 to fill the cavity 2 products 3, since the vibration generated by at least one vibrator 7, and the pressure created by the rotor 15, facilitate the penetration of the filler 9 in the cavity 2. Depending on the viscosity of the filler 9 and size of the fill cavities 2 products 3 the length of the working stroke can be, for example, from 10 to 60, especially from 15 to 30 C.
1. The method of filling a filler cavities in products, primarily automatic filling cavities in hollow blocks of concrete or other material, which consists in the fact that
a) at least one product (3) with its cavity (2) served with conveyor (4) in a filling station (1),
b) at least one product (3) by the relative movement of the specified at least one product (3) and capacity (8) with the filler relative to each other is positioned under, when viewed in a vertical plane, this capacity (8) with the placeholder
C) fill with placeholder (9) at least one cavity (2) at least one product (3), at the same time subjecting him to shake, and
g) at least one product (3) is filled cavity or Polo the authorities take away with conveyor (4) of the filling station (1), characterized in that the filler (9) is injected in at least one cavity (2) under the pressure created with the help of blades (16) of the rotor (15), installed in the containing this filler tank (8) and additionally to shake compacted by the application thereto of pressure in the process of completing them at least one cavity (2) and/or directly at the end of this process.
2. The method according to claim 1, characterized in that the filler (9) is subjected to condensation in at least one cavity (2) using a punch (18) or similar device, not necessarily while shaking.
3. The method according to claim 1, characterized in that for one working cycle at the same time fill the cavity (2) of several products (3).
4. The method according to claim 1, characterized in that at least one product (3) for positioning under the tank (8) with the fill up from the conveyor (4) in the vertical direction by the lifting table (6).
5. The method according to claim 1, characterized in that the filler (9) in the containing vessel (8) is controlled by means of the probe (17) and when it falls below a specified level, this tank (8) refill with fresh placeholder.
6. The method according to claim 2, characterized in that for filling at least one cavity (2) filler (9) containing a receptacle (8) is moved using the appropriate is echanism (10, 12) move to position at least one product (3) and after filling the filler (9) again divert away from this at least one product (3) to the at least one cavity (2), simultaneously moving the plug (18) to a position above that at least one product (3).
7. The method according to claim 1, characterized in that the duration of each working cycle is from 10 to 60, especially from 15 to 30 C.
8. Filling station for filling cavities in products primarily for automatic filling of cavities in hollow blocks of concrete or other material, the method according to any of the preceding paragraphs, having a capacity of (8) with filler, made primarily in the form of a feed hopper, a conveyor (4) for moving pallets (5), each of which has at least one product (3)and the device(15, 16; 18, 19, 20) seals designed for filling under pressure filler (9) at least one cavity (2) in the product, characterized in that the sealing device has at least one located in the tank (8) with placeholder rotor (15) with vanes (16), which are fixed on at least one cantilever holder and which supply filler (9) at least one cavity (2) in the product.
9. Filling stations is on item 8, characterized in that in the vertical plane above the conveyor (4) is removable perforated sheet (13), the holes (14) which is distributed in accordance with the location of the filled cavities (2) at least one product (3), each such hole (14) of the perforated sheet (13) and/or sheet spacers form a channel, the cross section of which corresponds combined with it in the cavity (2) in the product.
10. The filling station of claim 8, wherein the sealing device has a plug (18) with protrusions (19), the distribution of which it corresponds to the location of the filled cavities (2) at least one product (3).
11. The filling station of claim 10, characterized in that the punch (18) kinematically connected with lifting and lowering device (20), designed to create a static or adjustable load pressure applied to located in the cavities (2) the filler (9).
12. The filling station of claim 8, characterized in that the conveyor (4) equipped with a lifting table (6)to raise from the conveyor (4) pallet (5) at least one located on the product (3) and position the pallet in a vertical plane under the tank (8) with a placeholder.
13. Filling station 12, characterized in that the lifting table (6) built for less than the least one vibrator (7).
14. The filling station of claim 8, characterized in that the container (8) with the filler is equipped with a probe (17) to measure the level inside the filler (9).
15. The filling station of claim 10, characterized in that the container (8) with filler made moved transversely to the direction of movement of the conveyor (4) between a working position in which the filling of existing products cavities in which it is located in a vertical plane above the perforated sheet (13), and a non-working position in which it is closed.
FIELD: building materials.
SUBSTANCE: invention relates to the gypsum composition made of hardened gypsum and to a method for its preparing. The composition made of hardened gypsum comprises the bound matrix unbroken phase made of hardened gypsum having the enhanced volume of empty spaces from water, and/or the indicated composition is prepared from a mixture showing the enhanced ratio of water to calcined gypsum at least 3:1. Also, invention describes an article comprising composition made of hardened gypsum. Invention provides preparing nonshrinking composition of hardened gypsum with reduced density, improved insulating and/or acoustic properties.
EFFECT: improved preparing method and properties of composition.
21 cl, 3 dwg, 2 tbl, 1 ex
FIELD: construction industry, in particular, manufacture of multilayer construction stones.
SUBSTANCE: method involves forming undetachable frame by mounting of closed outer form onto pallet, with sides of frame being equipped with vertical slots; placing internal insert symmetrically in form, said insert being similar to form in shape and equipped with vertical slots; fixing form and insert with respect to one another with the help of vertical members introduced into vertical slots; filling space between form and insert with sand concrete; imparting monolith structure to filler by vibratory pressing or vibratory casting; withdrawing form, insert and vertical members; forming cells inside resultant undetachable frame by placing interconnected partition walls; fixing their free ends in slots formed in sides of undetachable frame by means of vertical members; filling cells with cellular concrete or light-weight concrete such as polystyrene, clay filler, sawdust, ash; holding; drying and removing partition walls to produce ready multilayer wall stone, which is further directed for stacking.
EFFECT: increased efficiency by combined employment of various construction materials and reduced labor consumed for performing frame forming and handling works.
5 cl, 6 dwg
FIELD: building, particularly for concreting cast-in-place and precast reinforced concrete structures along with concrete curing temperature regulation.
SUBSTANCE: method involves laying and compacting concrete mix under continuous concrete mix curing temperature control; heating central concrete layers with heating reinforcement when outer concrete layers are in elasto-plastic state. Heating reinforcement is spaced a distance "a" from surface. The heating is carried out simultaneously with surface heat-shielding. Distance "a" is determined as a=δeq(tav-ts)/(ts-ta), m, where δeq - thickness of conditional equivalent concrete layer corresponding to surface thermal resistance, Rs, m; tav - time-average concrete temperature calculated by estimated time of heating directly in heating area, deg; ts - time-average temperature at concrete surface calculated by estimated heating time, deg; δeq is determined as δeq=Rs·λ·F, m, where Rs is heat resistance of rigging with form Rr including thermal resistance Ra of heat transfer from rigging to ambient air, h·deg/kcal; Rs=Rr+Ra=(δr/( λr·F))+(1/(α·F)), h·deg/kcal, where δr is thickness of rigging, m; λr is rigging heat conductivity factor kcal/(m·h·deg), α is rigging surface heat-transfer coefficient kcal/(m2·h·deg), λ is concrete(reinforced concrete) heat conductivity kcal/(m·h·deg); F=1m2 - rigging surface area for thermal resistance calculation, m2. Amount of heat Q used to heat part of member to be heated having length (height) of 1.0 m and cross-sectional width of 1.0 m is determined from Q=(tav-ts)(m+(τ·λ·F/a), where m is constant equal to 60-180 kcal/deg and τ is calculated heating time, hours. The heating reinforcement is heating wires or pipes adapted for hot water circulation.
EFFECT: reduced temperature stresses and prevention of crack formation during structure concreting, as well as possibility to regulate curing temperature.
4 cl, 1 ex, 4 dwg
FIELD: building industry, possibly high-quality working of non-cured concrete surfaces of ferroconcrete products molded of hard concrete mixtures for providing desired roughness degree of their front surface.
SUBSTANCE: working organ includes in addition rotary boom, carriage, disc, hyperboloid torsion member, elastic rubber members, fixed strut, frictional wedge members, electromagnet, armature, lids, rigid connection links, safety spring, screw. Driven link is rigidly secured to hyperboloid torsion with possibility of transmitting rotation and oscillations in vertical plane to smoothing disc through rigid connection links compressing safety spring adjusted by means of said screw.
EFFECT: possibility for high-quality working of rigid concrete surfaces, lowered metal and power consumption.
1 cl, 1 dwg
FIELD: construction industry; construction equipment.
SUBSTANCE: the invention is pertaining to the field of construction industry, in particular, to construction equipment and may be used for superfine working of the non-solidified concrete surfaces of the concrete products molded out of the hard concrete mixtures with production of the required class roughness on the face surface. The technical result of the invention is reached due to the fact, that the disk-type working tool is supplied with the disk with the undulation surface, which with the help of the planetary drive is connected to the drive unit, and the body, which is capable to rotate, is connected to the drive unit and with the main part of the disk, the effective area of which consists of the main part and two movable in the vertical direction batches of the sectors. At that the disk with the undulation surface interacts with the sectors and has a possibility of rotation and transfer through the pushers of the vertical vibrations in opposite directions to the first and the second batches of the sectors.
EFFECT: the invention ensures the superfine working of the non-solidified concrete surfaces of the concrete products molded out of the hard concrete mixtures, production of the required class roughness on the face surface.
1 cl, 2 dwg
FIELD: building industry branches, possibly high quality working of non-solidified surfaces.
SUBSTANCE: working organ of smoothing out machine with torsion oscillation suppressor includes self-propelled portal, drive unit and shaft for mounting smoothing out disc. The last includes high-pressure hose, movable and stationary chambers, duct in drive shaft, pressure control unit of high-pressure hose. Said hose is wound onto drive shaft in such a way that surface of hose abutted to it forms flat land; one end of hose is rigidly secured to drive shaft and its other end is coupled with movable chamber fluid-tightly embracing drive shaft. Inner cavity of hose is filled with liquid through stationary chamber, ducts and movable chamber and it is communicated with pressure control unit through pipeline.
EFFECT: enhanced efficiency of suppression of torsion oscillations of shafts with large torque values in wide range of revolution numbers of drive shaft.
1 cl, 2 dwg
FIELD: building, particularly to treat non-hardened surfaces of reinforced concrete articles formed of harsh concrete to obtain necessary grade of article face finish.
SUBSTANCE: working surface of executive tool is composed of movable sectors performing opposite oscillations in direction transversal to executive tool movement direction. The oscillations are carried out with the use of control rods installed on discs having wavy surfaces. The discs are rigidly connected to shafts brought into rotation through planetary gears so that wavy disc surfaces cooperate with cam.
EFFECT: increased article surface finishing grade.
FIELD: equipment for building material manufacturing, particularly for concrete mass cutting.
SUBSTANCE: method for concrete mass cutting into concrete blocks involves using cutting means, namely hot gas jet, to provide quick block walls hardening and to prevent mutual block adhesion. The gas jet is supplied through nozzle tip installed at 75° to concrete mass in cut cavity forming direction.
EFFECT: increased speed and simplicity of concrete mass cutting, possibility to obtain concrete blocks having different configuration.
FIELD: apparatus or processes for treating or working, namely curing, setting or hardening, the shaped articles.
SUBSTANCE: method for gypsum panel forming involves shaping the panel, hardening and hydrating thereof and drying the panel during panel rotation. Device to realize above method is also disclosed.
EFFECT: increased panel quality, decreased production and maintenance costs and improved operating conditions.
20 cl, 11 dwg
FIELD: building industry, applicable for high-quality processing of solidified concrete surfaces of dry-concrete mixes used for civil and industrial engineering, as well as at placement of asphalt pavements.
SUBSTANCE: the roll working surface is formed by sections of conveyer belt attached to the roll framework. Loads are fastened on the free ends of the conveyer belt.
EFFECT: enhanced quality of the process surface: compacted surface layer and enhanced service life of the smoothing member.
FIELD: building industry, particularly for high-quality treatment of non-hardened concrete surfaces made of rigid concrete mixes used for civil and industrial building.
SUBSTANCE: working surface of the tool has sections reciprocated in vertical plane. The sectors are grouped into two sets moving in opposite directions to transmit vibratory action on surface to be treated without main working bar surface separation from surface to be treated.
EFFECT: increased quality of concrete articles subjected to treatment, reduced vibratory action applied to machine housing due to provision of sections vibration in opposite directions.
FIELD: building industry, particularly for high-quality treatment of non-hardened concrete surfaces made of rigid concrete mixes used for civil and industrial building.
SUBSTANCE: working surface of the cylinder if formed of pivoted rotary sectors arranged in parallel to cylinder axis. Cylinder body is provided with auger installed on axis thereof. Concrete mix discharge pipe is arranged in rear body part.
EFFECT: increased productivity and reduced concrete mix consumption.
FIELD: building materials.
SUBSTANCE: invention can be used for decorative finishing of concrete and reinforced concrete articles. Method comes to laying relief forming member in mould, covering it and laying concrete of decorative face layer. Used as relief forming member is porous hydrophilic material with layer of powder gas generator and layer of colouring agent applied in succession to its surface. Moisture permeable cloth is used as covering and structural concrete, as decorative face layer.
EFFECT: simplified process, increased service life of face surface of concrete articles.
1 ex, 3 tbl