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Carpet contains a basic structure and features high and low nap. Some fibres of the high nap have smaller linear density than finest fibres of the low nap. At least some fibres of high nap have linear density under 15 dtex, preferably under 5 dtex. |
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Sewing machine and methods of forming stitch with its use Sewing machine 1 comprising two needles comprises a platform 3, a rack 5, a console 6, a needle shaft 11 which is located on the front part of the console 6, two sewing needles 13, 14 which are attached to the needle shaft 11, two horizontal hooks 15 and 16 which grasp the corresponding loops of needle threads of two sewing needles 13, 14, and a moving member 21 which moves the sewn material 40 in a direction approximately orthogonal to the platform 3. In the sewing machine 1 comprising two needles the sewing needle 13 which is situated at the location more remote from the rack 5, is situated closer to the side of the displacement of the sewn material 40 than the sewing needle 14 which is located at the location closer to the rack 5. |
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Mechanism of transportation of fabric of sewing machine Mechanism of transportation of fabric of sewing machine comprises a mechanism of horizontal movement of the rack bar kinematically connected to the main shaft of the machine. At that the mechanism of horizontal movement of the rack bar is made in the form of the drum comprising a toothed-pinion belt put on the spools and the pinions, at that the spools are located one horizontal plane, one of the spools is installed on the driven shaft, and the pinions are located on both sides of the horizontal plane of the spools location to form a polygon; the spools are connected with a clamp connected via the lever to the handle mounted with the ability of fixation; and on the toothed-pinion belt the toothed elements are placed in the form of tracks, corresponding to the lines with different pitches. At that the toothed elements are made composite and can be manufactured, for example, from textolite. |
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Mechanism of transportation of fabric of sewing machine Mechanism of transportation of fabric of sewing machine comprises a kinematic chain of movements of the rack bar, comprising the system of rods and levers, at that on the main shaft the profile cam is mounted which is connected with the toothed plate kinematically connected through the shaft-rocker and the lever with the rack bar, and the profile cam is made sine-shaped. The connection of the toothed plate with the shaft-rocker is made of a gear wheel engaged with the toothed plate, at that the gear wheel is mounted coaxially with the bevel gear, which is in contact with the shaft, at the end of which a similar bevel gear is located through the train of gears connected with the shaft-rocker. The mechanism enables to increase the wear-resistance and reliability of operation under high dynamic loads. |
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Machine has advanced technological capabilities with automatic changeover to different types of chain and overcasting stitches. For the first time, the overlock sewing machine performs zigzag stitches not only of two-thread chain stitch, but three-thread (two-thread) overcasting having less consumption of thread in comparison with the four-thread overcasting stitch. The machine additionally comprises the units of regulation of the width of the stitch and switching off the upper moving knife in the mechanism of cutting the edge of the material. In the upper looper mechanism the unit of its switching off is provided by actuation of the solenoid and opening the kinematic link between the driven lever and the shaft of the upper looper mechanism. In the mechanism of movement of the material the unit regulating the rods in height is mounted, actuated by the stepper motor. The presser foot mechanism comprises a sensor of registration of the presser foot position in height, and the stepper motor with a cam for regulation of the pressing force of the material by the presser foot. In the machine an automatic adjustment of the machine to the rational parameters of operation is provided, the self-learning methods are used due to which the diagnostic system has the ability of self-correction of the settings, when changing the conditions of the material processing. |
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Sewing machine is integrated in the winding machine as one of the units extending its technological capabilities, and is located on the carriage of the machine tool, carrying the film drive mechanism with the textile ribbon reel. The sewing machine is made in the form of two functionally separate but cinematically interconnected, through the drive shaft and lever systems, parts of the housing which comprise mechanisms carrying out preparatory transformations obtained from the actuator of movements through the system of gears, cams and levers, and movable relative to the head housing comprising a needle with a needle bar, a looper with the drive mechanism and the system of fixing the head itself on the sewn material. |
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Carpet (1) comprises a primary support layer (100), optional secondary support layer (200), optional adhesive layer (300), a set of light-emitting diodes built in the carpet (40), adapted to generate light from the carpet (41), and the first electrical conductor (10) and the second electrical conductor (20). The first electrical conductor (10) and the second electrical conductor (20) are adapted to provide power from the power source (50) to the light-emitting diodes (40). The primary support layer (100) comprises a first layer of felt (30'), or the optional secondary support layer (200) comprises a second layer of felt (30"), or as the primary support layer (100) and the optional secondary support layer (200) comprise layers of felt (30', 30"). The first electrical conductor (10) and/or the second electrical conductor (20) is at least partially embedded in the first layer of felt (30') and/or the second layer of felt (30"). |
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Method of satin embroidery on article Method for satin embroidery on an article consists in the fact that an ornament is applied into a base, stitches are made to form double-sided satin embroidery. The ornament on the base is embroidered with stitches laid in series in the form of separate groups of stitches according to the shape of the ornament fragment, creating visibility of pastose strokes that tightly adjoin to each other and have different dimensions. The thread of each stitch is arranged either on a reverse side of embroidery to a face side and back to the reverse one, or from a face side of embroidery to a reverse one and back to the face one, and thus an ellipse-shaped turn is formed to produce double-sided embroidery, of identical size at the reverse and face sides into one thread, ends of which do not contain knots. |
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Design of heat-shielding packet with adjustable thickness Adjusting compartment is formed by two partitions, sections of a material of outer and inner layers of a shell and by a facility for fixation of adjusting compartment width. The width of the outer layer of the adjusting compartment shell material (aadj) is within the limits of a0<aadj<(2hp+a0), where hp - partition width, a0 - minimum width of the facility for fixation of the adjusting compartment width, defined by technical characteristics of the adjustment facility, and width of the part of the inner layer of the shell material forming the adjustment compartment is ain≈a0. Stiffness of the middle part along the partition width increases by an adhesive, thread or other methods of duplication, and also by using stiff inserts, installed into special pockets on a partition. |
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Device and method to even edge surrounding end of circular knit item Device to even an edge of a circular knit item comprises a tubular element, where a circular knit item is arranged, and a working head placed upstream the end of the tubular element, comprising many contact elements, besides, contact elements include at least one wheel and many blocks. The device comprises multiple contact elements arranged around the axis of the working head, and a support bearing at least one wheel on itself that is located between two separate blocks. |
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Device of change shape of seam Device of change the shape of seam contains a shaft mounted in bearings of the housing, bearing a block of feeler units which includes a feeler unit of an automatic software of displacement of tissue feed in contact with a stripper, mounted with the possibility of oscillating in the mode of stitch execution of complex zigzag with software combined control by mechanisms of needle and the feed of tissue kinematically connected with the control handle of the tissue feed, mounted on the axis, and a cam of smooth adjustment of the stitch length. According to the invention it is provided with a transitional feeler unit for transfer the stripper from the feeler unit of automatic software of the tissue feed displacement by a cam of smooth adjustment of the stitch length, made in one piece with the said feeler unit with a narrow lateral cylindrical surface and conical surfaces, by which it is coupled with its cavities and protrusions. At that the narrow lateral cylindrical surface is made with a diameter equal to at least half the sum of the diameters of protrusions and cavities of the feeler unit of the automatic software and is located on the same level with the cam of smooth adjustment of the stitch length, which with the stripper has the ability to contact in the mode of performance of straight and zigzag stitches with control of the needle mechanism. |
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Device for stitch stroke regulation Device mostly serves for use in lockstitch sewing machines. Stitch stroke regulation device contains the handle for material movement control, three-centered latch located in the main shaft of sewing machine interacting with the pusher the bottom end of which is connected with the hinge joint to balancing arm of the advancing shaft and in the middle part through the connecting link of swinging cross-arm. The reference spring-loaded three-port arm is simultaneously kinematically linked to the spring-loaded reverse feed arm and latch of smooth stitch stroke regulation contacting with one port of spring-loaded three-port arm mounted on the leading axle with possibility of longitudinal movement, second port of which contacts with one port of swinging cross arm that is also mounted on leading axle. Its third port is outfitted with the socket which is entered by the finger of longitudinal movement drive made as gear and rail set drive gear of which is mounted on the axle of the handle for material movement control, and the rail is outfitted with said finger. The latch of smooth stitch stroke regulation is made in form of flat surface located at the angle to the axle of the main shaft of sewing machine. The device is outfitted with error compensation unit in dimension chain of its kinematical connection made in form of length-adjustable, screwed into second port of cross arm screw with spherical butt end interacting with control port of reference spring-loaded three-port arm. The interaction of said chains is performed by means of its power contact. |
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Hand sewing needle contains a bar sharpened at the end at one side and a wedge-shaped eye at the other side. In order to eliminate spontaneous displacement of threads in the eye and elimination of their tangling, long sides of the wedge-shaped eye are arranged along the radius and have concavity to the inside. |
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Invention relates to machine building, particularly, to diverse assembly fixtures to be used in limited access conditions. Proposed fixture of needle-sleeve type comprises case with location surfaces and guide accommodating hollow slide spring-loaded to said case and provided with rod, handle spring loaded to said rod furnished with needle seat, and limiter of relative displacement of rod and handle. Case accommodates spring loaded lever with shoulder and chamfer on its end. Handle may displace relative to slide and has its face provided with surface to interact with lever chamfer. One face of slide has surfaces to interact with lever chamfer and shoulder, while opposite face is provided with sleeve location hole. Aforesaid limiter is made up of groove made in rod to receive handle retainer. |
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Device to mount accessories on sewing machine platform Invention relates to a device to mount accessories on a sewing machine platform, which comprises a base arranged on the machine platform with indexing holes, at the same time one of the base indexing holes for accessories is made with a diameter commensurate with a support bushing diameter. The bushing has two segment grooves made so that width and height of a produced ledge complies with width and height of an indexing adjustment slot of an accessory, and the segment grooves themselves are arranged aflush with the base, at the same time along the axis of the support bush there is a threaded hole. |
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Zigzag sewing machine comprises mechanisms of a needle 1, a thread takeup 2, a cloth mover 3, a shuttle 4, kinematically joined to the main shaft 5, a bearing block of guide plates 8, including the main guide plate 8.1 of the automatic program of the cloth mover motions, and a device for change of a stitch shape 10 with a cam 13 for smooth adjustment of the stitch length and a transition guide plate to change a puller from the latter to the guide plate of the automatic program of the cloth mover motions and vice versa. According to the invention, the transition guide plate is arranged in shape as an additional guide plate 14 of the automatic program of the cloth mover motions. At the same time the guide plate is arranged so that its average diametre is located at one level with the cam 13 for smooth adjustment of the stitch length, which provides for smooth changeover of the puller 9 and makes it possible to produce additional stitches. |
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Device to thread needle for hand sewing or sewing machine Device to thread a needle for hand sewing or sewing machine comprises body, rotation discs, thread clip, stand, there is a through hole in the centre of rotation disc with movable and fixed jaws of worm reducer, and its diametre is less than width of through slots arranged between two guides, which are rigidly joined to bracket and sleds. Besides, length of through slots is longer than displacement in direction of thread clip motion, longitudinal axis of protruding end of thread length from clip matches crossing of vertical and horizontal lines, arranged on glass of microscope lens, longitudinal axis of microscope crosses axis of thread length in the centre of needle eye at the moment microscope bracket touches limiter, position of microscope and worm reducer with bracket in vertical plane is controlled by couplings by rotation of their discs, axes of rotation of which are equipped with gear drives, arrangement of needle eye plane between fixed and movable jaws is fixed by ratio of longitudinal axis of through slots at the angle of ninety degrees, length of thread impregnated with bee wax or its substitute and pulled through needle eye is cut by scissors. |
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Handle 27 of stitch selection, handle 11 of stitch length control, needle pusher 22, interacting with swinging cross beam 21, pusher 18 of cloth mover, interacting with three-arm yoke 67, lever 29 to change direction of cloth mover displacement are mounted onto a single block-frame of control, arranged in the form of two supports 43 with needle pusher axis 23 fixed in them, which also bears swinging cross beam 21, cloth mover pusher 18, three-arm yoke 67. At the same time in position prepared for alignment of sewing machine with block-frame of control, needle pusher 22, cloth mover pusher 18 interact in a contact manner accordingly with one of guide blocks in assembly of guide blocks 4 and cam 13 of smooth control of stitch length, and the third arm of three-arm yoke interacts in a contact manner with control crank 16. At the same time needle pusher axis 23 is equipped with mounting support ends protruding at both sides of supports 43, by means of which block-frame of control is mounted in supports 44 of machine frame. |
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Method and device of angular orientation along axis of tubular jersey article, such as sock Proposed device of angular orientation along axis of tubular jersey article, such as sock, comprises tubular element, facility for insertion and stretching of tubular jersey article along outer side of tubular element and along its edge; control unit, crown of recognising elements interacting with edge of tubular element. Control unit is programmed so that angular position of tubular article stretched along surface of tubular element is defined by reading of a signal sent by recognising elements in defined mutual position of specified tubular article, specified tubular element and specified recognising elements. Method of angular orientation along axis of tubular jersey article, such as sock, includes the following operations: stretching of article along whole surface of tubular element, so that intermediate part of strip surrounding the second edge is arranged along crossing line, in two points of tubular element edge; arrangement of crown of recognising elements along edge of tubular element; detection of angular position of strip on tubular element as function of interaction between crown of recognising elements and strip; identification of fabric pocket position by angular location of strip relative to tubular element. |
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Sewing machine tab and sewing machine Sewing machine tab according to invention comprises the following components: part (44) for tab installation and fixation to pressing rod (14) of sewing machine; pressing part (46) for pressing of sewn item, when sewing needle (12) pierces; and slot (46) for direction of row (9) of zipper (8) elements by means of insertion of some elements in it. Besides sewing machine comprises the following components: rotary bracket (47), which is retained by part (44) for installation of tab with the possibility of rotation relative to part (44) and swings in vertical plane parallel to line (28) of sewing in process of sewing; and spring-loading facility (52) located between part (44) for installation of tab and rotary bracket (47) to spring-load rotary bracket (47) to sewn item relative to part (44) for tab installation. |
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Method for formation of waterproof filar joint Method for formation of waterproof filar joint consists in application of sealant onto shuttle thread, closing segments of garments by shuttle stitching and curing. Sealant is represented by aqueous solution of acrylic lightly crosslinked thickener and self-cross-linking binding preparation with concentration of 40-80%. When interacting with water, chemical composition swells, increasing in volume, and after drying it returns into initial volume state, which provides for high hygienic properties of clothes due to change in water impermeability of filar joints as ambient humidity changes. |
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Device for control of darning width for sewing machine Device for control of darning width for sewing machine comprises holder of lower knife, which rests on frame of sewing machine so that position of lower knife holder in process of displacement may be controlled in direction, which is perpendicular to direction of cloth feed. Thread-shifting element establishes width of darning by means of thread gripping at its tip near area of stitch formation, and holder of thread-shifting element is supported with frame of sewing machine so that position of thread-shifting element in process of displacement may be controlled in direction, which is perpendicular to direction of cloth feed. Facilities are also provided for adjustment of thread-shifting element for control of thread-shifting element position in process of displacement, as well as facilities for adjustment of lower knife holder for adjustment of lower knife holder position in process of displacement to position, which goes beyond position, corresponding to outer limit position of thread-shifting element. |
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Threadless seam for tight connection of materials Threadless seam comprises two layers of material, which are joined by tight tape, at the same time additional layer of tight tape is arranged as turned on face side along seam surface, the main layer of tight tape is located either as bended for turned outside or inside joined materials depending on seam design, and connection tape used is represented by elastic self-adhesive material on the basis of water dispersion of copolymer of butyl acrylate, acrylonitrile and methacrylic acid. |
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Device for variation of stitch frequency in process of closing at universal sewing machine Device for variation of stitch frequency in process of closing at universal sewing machine comprises spring-loaded lever that adjusts stitch frequency and is connected to controller of sewing machine stitch length, being arranged as composite with the possibility to vary its length. Its upper part has fixing ledges, which contact with controller of sewing machine stitch length, and lower part of lever is installed on base with the possibility of swinging motion. |
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Device for hermetic sealing of places of thread joints in garments Invention relates to clothing equipment and can be used to manufacture special-purpose garments and domestic water-resistant clothes made of textile materials having waterproof finishing workmanship as well as of the materials with film coatings. The device has a tank for the sealing compound, compressor, pressure controller, pipeline system, air suction system and nozzles. In order to ensure a required level of point positioning of the sealing compound in places where the thread joints get penetrated by the needle along the thread seam the device structure houses an additional controller connected to the rotation angle sensor installed on the sewing machine shaft. The controller uses its other outlet to connect to an air solenoid valve that uses the air-driven pipeline to connect to the tank containing the liquid-phase sealing component. |
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Sewing machine needle consists of a shank, a thread passage groove, faces, ribs, an eye and point of the needle, which is made in the form of a triangular pyramid with the bottom made in the form of an equilateral triangle. At that, side ribs of the pyramid are made in the form of a tractrix-shaped concave curve, or its faces are concave. |
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Device includes a loading element on which a tubular knitted article is put, and a gripping element for catching opened toe of the article. The gripping element gas a number of components for catching toes of the article arranged about axis of the loading element which can assume circular or polygonal configuration and mainly line flattened out configuration for catching the article from the loading element and putting it in the thread guide of a sewing machine. |
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Method and device for treatment of tubular jersey garment, in particular sock Method contains the following stages: garment stretching onto tubular element, so that intermediate part of belt surrounding end to be sewn in specified garment, is located along line that crosses in two points end edge of tubular element, and remaining part is located along external side surface of tubular element; measurement of angular position of mentioned belt in tubular element; identification of garment cloth pocket position on the basis of angular position of mentioned belt relative to tubular element. |
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Production system contains one or two rows o workplaces from production tables with sewing machines, monitors and rooms for controlling the functioning of the workplaces, storages of the ready products and sewing details and knots, connected with the workplaces with hanging chains and belt-type conveyors. Flexible conveyor belt made in the form of a Moebius band with the horizontal flat surface of its upper branches between the primary and slave devices of the actuating system, each made in the form of a cog-wheel, forming toothed wheel gearing with holes in the belt, on which are placed bags with zippers for putting in sewing details and knots, and a dispatcher with a monitor and control units. Holes in the belt pass by its central lateral axis, on both sides from which the indicated bags are placed on the belt. On different sides of the conveyor are placed rows of workplaces and ironing tables which are technologically joined with it. Chain of the hung conveyor passes above the conveyor belt of the belt-type conveyor, at whose beginning there is a launching table, storage for the sewing details and knots and the in-process storage, and at the end - the reception workplace and quality inspection of the end products and collection of the latter. |
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Flexible sewing heavy-duty machine with set of automatic spool charger heads Offered is sewing machine with automatic spool charger. Automatic spool charger accommodates clutch assembly mounted under sewing plane and fitted with spool receiver. Clutch assembly is actuated with drive shaft and moves from the first working position to the second charging position. Spool charger adjoins clutch assembly in the second position. Spool charger contains suction pipe removing any remained spool rod. Then spool charger charges equivalent spool from charging spool assembly to spool receiver before clutch assembly returns into position. In addition for sewing thick material, the needle is brought by needle carriage moving simultaneously with sewed material to support needle essentially in vertical position as being inside of sewed material. |
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Transformable bench for sewing machine Proposed bench incorporates a base, a table-top for the seamer to be fitted thereon, two hinged table-tops arranged on opposite sides of the table-top with the seamer. The left hinged table-top, when swung out, rests on the bench front door in its open position. The right hinged table-top is linked to the seamer table-top. The proposed bench incorporates a mechanism allowing moving the machine from inside into the working position and representing an air-operated lift comprising a pneumatic cylinder, guides fixed to the base side walls, a roller system with a cord running around the rollers and interacting with the guides, the machine base three-position locking device and a control pedal. There is an additional pull-out case to house the overlock arranged perpendicular to the bench front surface and furnished with the table-top made up of two parts, one of which getting folded in pulling the pull-out case inside the bench. |
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Method and device for stitching Device includes detector of displacement, which determines displacement of folding and controls actuation of sewing head. Therefore device function consists in synchronisation of stitch course generation by head with mutually controlled displacement of sewed material folding. It enables the user to displace folding in wide range of speeds, to start or stop displacement of folding as desired and to direct folding in any direction along flat bed. |
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Method and machine for producing of non-loosenable seam Method involves making seam with the use of at least one sewing thread having thermoplastic material on at least outer side thereof; using infrared laser beam for local directing it onto seam from the outer side in order to provide precise softening of thermoplastic material of sewing thread; applying pressing device before hardening of softened material in order to join all of the adjoining stitches. |
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Method for preventing of stitch from rupture and apparatus for performing the same Apparatus has looper thread hanging hook located in the vicinity of looper end part and disposed upon movement to left-hand front side in right-hand position and on rear side of needle falling site, and hook moving forward and returning back in the same direction, when looper is disposed at right side and on rear side relative to needle falling site. Method involves moving looper to position for advancement at end parp of sewing operation, and urging looper thread hanging hook to advance and return back for catching of looper thread running to rear side of looper, and for holding it on rear side relative to needle falling site; after sewing by making at least one stitch, urging thread cutting hook disposed in said position to advance and return back for catching of looper thread running toward rear side of looper by means of hook first tip portion and for gripping of needle threads and looper thread held by looper thread hanging hook by means of looper second mid portion; providing joint cutting of these threads due to sliding contacting thereof with thread cutting knife. |
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Hand-held sewing needle has rod provided with arc-shaped curved portion and having one end sharpened and other end provided with eyelet having mutually spring-biased side cheeks and cut terminating in wedge-shaped widened portion at needle end. Eyelet cut is positioned in plane of arc-shaped curved portion of rod. Curved portion of rod is characterized by following parameters: distance from chord to point of arc-shaped curved portion maximally remote from chord is 1-6 mm. Sewing needle of such design enables easy and successful execution of work connected with putting of thread into needle eyelet by weak-sighted people. |
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Needle has thread eyelet formed as cavity provided with helical recess which is opened upon rotation of eyelet. Said recess has widened portions. |
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Driving mechanism of cutting device for sewing machine The rotary motion of the upper shaft of the sewing machine is transformed to the reciprocating motion by means of a motion transmission mechanism. The edge of the cloth is cut by the upper cutting device, which operates in accordance with the up and down displacement, and by the lower cutting device, which operates in interaction with the upper cutting device. The upper cutting device is directed for sliding by the driving u it of the cutting device that is installed for turning on a frame. The motion transmission mechanism is coupled to the upper cutting device by means of a coupling. The coupling transmits to the upper cutting device during operation of the cutting device and turns the driving unit of the cutting device to the by-passing position and interrupts the transmission of power to the upper cutting device at the time when the cutting device is idle. |
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Device and method for treatment of material having the form of canvas The device has at least one drawing mechanism for pulling away of the material from the feeding roller by turn to the first and second vertical levels in the first direction, device for cutting the material into separate pieces, two pairs of means of advance for feeding the cut pieces of material in the second direction located on the mentioned first and second vertical levels respectively, and means for feeding the cut pieces of material by turn the two vertical levels forward to the third vertical level of the point of execution of the operation of treatment. |
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Needle is composed of two bars contacting with one another along the length so that said parts may be pressed to one another and detached from one another at the side of eyelet and mutually moved in lengthwise direction. One of bars has permanent magnet and other bar comprises material attracted to permanent magnet for temporary magnetization defining repulsion from permanent magnet. |
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Method for manufacture of filed textile articles such as textile tiles Method involves introducing a plurality of threads into basic layer of cloth to produce piled cloth comprising at least one ornamental pattern, one guiding line extending in parallel with direction of finishing of piled cloth, and reference marks used for cutting of piled cloth; cutting piled cloth along guiding line and reference marks into parts to produce individual piled textile tiles. |
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Kinker (broadener) moving mechanism for sewing machine Kinker (broadener) moving mechanism has feeler fixed on drive shaft and adapted for engagement with spherical member positioned so as to be shifted on clamp finger. Feeler is made in the form of thin balanced disk with spherical working path on outer eccentric surface. Spherical member is made in the form of sleeve with spherical circular groove on its outer cylindrical surface. Spherical working path of feeler is positioned in groove. Constant contacting of feeler and sleeve spherical surfaces is provided by means of compression spring located between lever fixed on kinker pin and adjustment screw. |
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The invention is pertaining to the field of textile industry, in particular, to the method of production of the edge- two-thread buttonhole stitch and to the edge-overlock two-thread buttonhole stitch sewing machine for the method realization. The invention is dealt with the field of sewing and may be used at production of garments. The overlock two-thread buttonhole stitch is gained by the material edges-basting from below by the needle thread and from above by the looper thread with formation of the line of the stitches sequentially arranged along the edge of the material. For this purpose the needle thread by means of the needle arranged at an angle to the direction of the material movement is pulled through the material and from below in the formed overlock loop of the needle thread by the move from behind the needle introduce into it the thread of the looper moving in the plane perpendicular to the edge of the material. For this purpose the looper is moving behind the needle and from below using the U-turn introduces the needle thread into the loop-overlock, hooks it and stringing it onto the looper pull the thread beyond the edge of the material. After the needle coming from the material the thread of the looper is transferred by the looper from below upward under the needle simultaneously moving the material by the value of the stitch. Then through the formed loop-overlock of the thread of the looper and through the material using the needle pull the needle thread, hook by it the loop-overlock of the thread of the looper and then the thread of the looper is drawn beyond the edge of the material, drop from the thread looper the earlier hooked loop of the needle thread exercise the stitch tightening. After that the looper with the thread again introduce into the formed loop-overlock of the needle thread from below the material. The sewing machine for fulfillment of the edge-overlock buttonhole stitch contains the gear for relocation of the needle, which connecting-rod is connected to the arm of the rocker, the other arm of which is hinged to the link of the drive of the needle carrier. The needle carrier is mounted at an angle to the direction of the material movement. One end of the shaft pf the rocker is fixed in the body, and the other - in the rotating bush made jointly with the eccentric of the manual rise of the presser for the hold-down of the material. The knife gear contains the connecting-rod and the roller, on the end of which there is the fixed lever with the knife. The gear of the looper contains the lever connected by the ball hinge with the connecting-rod and the rocker, on one end of which there is the fixed looper, and its other end is pivotally coupled to the lever arranged on the shaft of the crank. The gear of relocation of the material additionally contains the spring for provision of the kinematic link of the bed with the eccentric of the toothed bar rise. |
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Method of gas-thermal coating on inner side of opening Method comprises setting the reflecting member in the opening in front of the nozzle of the spraying burner and rotating the member in the course of coating. The reflecting member has sloping surface. The nozzle and reflecting member move one with respect to the other in a given trajectory. The axis of the nozzle is shifted with respect to the axis of rotation of the reflecting member. The reflecting member is additionally cooled by means of one or several nozzles arranged in the vicinity of the spraying nozzle. The exhaust gas is forcedly evacuated from the side of the nozzle opposite to the opening. The reflecting member vibrates within the ultrasonic frequency range. During coating, the part to be coated rotates around the axis of symmetry of the opening. |
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Fabric conveying mechanism for sewing machine (versions) Fabric conveying mechanism has kinematic chain for moving toothed rack in vertical plane. Kinematic mechanism uses six-link pivotal mechanism providing standing of lifting arm in extreme upper position of toothed rack and simplified joining of supporting lever with connecting rods of six-link kinematic chain for moving toothed rack in vertical plane and changing connection of lifting arm with lever, which carries toothed rack. Fabric conveying mechanism of such construction provides movement of toothed rack above needle plate along path having straight portion extending in parallel with needle plate during conveyance of fabric by predetermined and regulated length of stitch. |
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Method for temporary joining of fabrics and small-sized sewing machine for effectuating the same Method involves introducing curved needle with thread inserted into needle eyelet into fabric layers to be joined; turning needle until it exits fabric at a distance from site where it was introduced, and forming loop from thread by moving said needle in reverse direction; seizing loop by its one side, providing running thereof around other side and drawing it through loop; thereafter, ceasing displacement of needle to the initial position and tightening node; repeating all mentioned steps at distance equal to stitch pitch. Sewing machine has needle guiding mechanism, looper mechanism and toothed rack. Needle guiding mechanism has base, guide fixed on base, rack movable along guide and pivotally connected with needle holder having curved needle. Needle holder is moved relative to rack by means of tie-rod and rack is also movable relative to base by means of tie-rod. Looper mechanism has base pivotally connected to bar, looper provided with nose part, and thread stretching hook with axis of rotation. Base is turned by means of tie-rod and hook is also turned by means of tie-rod. Upon passage of needle through fabric and turning of looper base around axis, looper nose part draws out thread. Once hook is turned, loop is formed, said loop being tightened on thread following it during reversal of needle. |
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Mechanism for transporting fabric Mechanism comprises needle rack that moves above the needle plate and kinematic member for transporting gear rack over the vertical of the six-link pivoting mechanism. |
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Apparatus for transportation of material Apparatus has movable guide with working carriage and at least one immovable guide with transportation carriage, said guides being arranged in mutually perpendicular position with respect to one another, embroidery frame rigidly connected to working carriage, and controllable electric drives for carriages with transportation mechanisms and electric engines. Movable guide is positioned for movement along immovable guide and relative to electric engine of working carriage, and electric engine is positioned for movement in parallel with immovable guide. According to preferred embodiment, electric engine is connected with additional controllable electric drive. Absolute value of displacement of movable guide relative to electric engine of working carriage is selected to be greater than predetermined length of stitch. |
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Drive mechanism for link formers Drive mechanism for link former of sewing machine has upper and lower link formers disposed under needle plate. Respective link forming points of these link formers are oriented in single direction, so link forming points are disposed forward of front side of needle when viewed in sewing direction. Lower link former and upper link former are driven for movement so as to perform motions whose paths are extending in planes substantially parallel to each other. Such construction allows drive mechanism to provide function of closed stitch as well as function of edge overhandling stitch with the use of the same single sewing machine. |
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Method involves placing beads onto fabric with their flat surface; providing first pricking by directing needle into bead hole; moving fabric in direction opposite to stitching line by value equal to bead height and providing second pricking by directing needle through fabric, with needle thread turning bead in such a manner that bead is placed with its spherical surface onto surface of fabric; moving fabric in direction coinciding with direction of stitching by value equal to total of diameter and height of bead; providing third prickling similar to first prickling, with needle thread sliding from sewn bead. |
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Sewing production system has ready article accumulator and sewing parts and units accumulator, said accumulators being connected to working places through chain conveyor and belt conveyor, respectively. Flexible member of belt conveyor, that is, conveyor belt is made closed similar to Murbius belt comprising pockets provided on belt surface and equipped with fasteners for accommodation therein of sewing parts and units. Working places and controller's table are furnished with monitors connected to database of microcomputer unit for controlling operation of production system. |
Another patent 2513057.