377 results about "Sewing needle" patented technology

The invention discloses a trademark stitching template which comprises a base cloth clamping piece, a top plate and a movable pressing plate. The bottom cloth clamping piece comprises a bottom plate provided with a nail seam through hole in a penetrating manner and a core plate which is provided with a trademark embedding hole in a penetrating manner and is superposed on the bottom plate; a limiting hole is formed in the top plate in a penetrating manner, and the top plate is removably stacked on the side, deviating from the bottom plate, of the core plate; the movable pressing plate is movably arranged in the limiting hole, provided with a pressing foot positioning hole in a penetrating mode and provided with a trademark abutting face. During use, the presser foot is matched in the presser foot positioning hole of the movable pressing plate in a concave-convex mode, the movable pressing plate moves relative to a trademark and evenly presses the two sides of a sewing needle while the presser foot moves along a preset closed pattern track, it is guaranteed that trademark stitching stitches are accurate, stitching tension is even, and then it is guaranteed that base cloth after trademark stitching is smooth and free of wrinkles; and the quality consistency of trademark stitching can be improved. The invention further discloses trademark nailing equipment and a trademark nailing method based on the trademark nailing template.

A stitch guide tool and a method of using the tool to manually sew a stitch are provided. The tool has two opposing plates that can be brought together with a piece of fabric to be stitched being positioned between the two plates. Each plate has a series of holes extending through the plate, and the holes in each plate align with each other so that a sewing needle can be passed through a pair of holes and the fabric positioned between the holes. Each series of holes is connected by a slot so that the thread can pass between adjacent holes through the slot. The needle can be passed back and forth through adjacent sets of holes consecutively to create a straight stitch in the fabric. The thread can be pulled through portions of the slot between holes to tighten the thread to the fabric to create the stitch.

The disclosure improves the quality of seams in sewing using a sewing machine, and includes: a holder holding fabric; a driver being detachable from a bed of a sewing machine and driving the holder along an upper surface of the bed; a position detector detecting a position of a sewing needle of the sewing machine in an up-down direction; and a controller controlling driving of the holder, which is performed by the driver, based on a detection result of the position detector.

The application discloses a closure device facilitating interactive stitching, the closure device is used for tissue stitching and has opposite distal and proximal ends, the closure device comprises: a handle configured with a drive mechanism; the near end of the catheter is fixed on the handle; the two operation arms are rotationally connected to the far end of the catheter, each operation arm is controlled by the driving mechanism, each operation arm is provided with a needle groove used for containing the end of a suture needle, a pin hole is formed in the groove wall of each needle groove, and movable pins which enter or withdraw from the needle grooves through the pin holes are arranged in the two operation arms; the near ends of the movable pins in the two operation arms extend to the driving mechanism in the guide pipe and synchronously move under the action of the driving mechanism to switch the matching state of the movable pins and the sewing needle. According to the closing device, more tissue closing scene requirements can be met by improving the movement modes of the two operation arms, and in addition, the operation synchronism and the structure simplification are guaranteed by aiming at the arrangement of the driving mechanism.

A sewing machine external unit includes: a holder holding fabric; a driver being detachable from a bed of a sewing machine and driving the holder along an upper surface of the bed; a pressing member moving in an up-down direction according to movement of a sewing needle in the up-down direction, pressing the fabric while the sewing needle is stuck in the fabric, and rising together with the sewing needle in response to the sewing needle coming out of the fabric and rising; a position detector detecting a position of the pressing member in the up-down direction; a signal output part outputting a signal to the sewing machine; and a controller outputting a needle drive signal for driving the sewing needle from the signal output part to the sewing machine, and controlling driving of the holder and / or the sewing needle based on a detection result of the position detector.

The utility model relates to a multifunctional cloth sewing device, and belongs to the technical field of textile machinery, the multifunctional cloth sewing device comprises a sewing table top and a controller fixedly mounted on the sewing table top, and the sewing table top is provided with a sewing mechanism and a pressing mechanism; the sewing mechanism comprises a mounting frame fixedly connected to the sewing table top, a first air cylinder fixedly mounted on the upper side of the mounting frame, a pressing plate fixedly connected with an output shaft of the first air cylinder and a sewing frame arranged below the pressing plate. A plurality of mounting plates are inserted into the inner side of the suture frame, a suture needle is fixedly mounted on the lower side of each mounting plate, and an elastic assembly is arranged between each mounting plate and the suture frame. According to the multifunctional cloth sewing device, the matched sewing needles can be conveniently and rapidly switched according to the sewing requirement of cloth, the adaptability of the sewing device is improved, the sewing device can adapt to cloth of different materials or thicknesses, the sewing efficiency and quality are guaranteed, and the practicability of the device is improved.

The utility model relates to the technical field of plain stitch sewing machines, and discloses a cloth pushing device of a plain stitch sewing machine, which comprises a sewing machine table board, and first positioning blocks are arranged on the front side and the rear side of the top of the sewing machine table board. According to the cloth pushing device of the plain stitch sewing machine, through the arrangement of the pushing assembly, the adjusting assembly and the clamping assemblies, a second threaded rod is rotated firstly to drive a front threaded plate, a rear threaded plate and the two clamping assemblies to move oppositely or oppositely so as to adapt to cloth of different sizes, then the cloth is placed outside two U-shaped bases, and the cloth can be pushed out of the U-shaped bases. At the moment, a threaded shaft is rotated to drive a fastening plate to move downwards to fix the cloth, then an electric sliding rail and an electric sliding block are powered on to drive the cloth to be pushed on a needle plate hole, sewing is conducted through cooperation of a machine needle and the needle plate hole, the cloth does not need to be manually pushed for sewing, unnecessary danger is reduced, and the sewing efficiency is improved. And the device is high in practicability and convenient to use by workers.

The utility model relates to the technical field of textile machinery, and provides a sewing machine which is convenient for adjusting the pressing height and has strong applicability and is convenient for adjusting the height of a middle presser foot. The utility model comprises a processing table and a main power unit arranged on the processing table, a sewing head is arranged at the upper end of the main power unit, the sewing head comprises a connecting shell fixedly connected to the end surface of the main power unit and a sewing needle column connected to the end of the main power unit on the outer wall, a forward and reverse motor is arranged on the top surface of the connecting shell, a follower pressure column which extends into the connecting shell and penetrates the connecting shell at the bottom is sleeved on the end of the forward and reverse motor, when the pressing height needs to be adjusted, the rotation angle of the forward and reverse motor is changed, and at this time, the pressing height of the follower pressure column can be synchronously increased or decreased.

The utility model relates to the technical field of sewing machinery, and provides an anti-nest sewing machine which is high in sewing attractiveness and low in rejection rate and comprises a processing table and a power main machine arranged on the processing table, and a sewing head is arranged at the end of the power main machine. The sewing head comprises a connecting shell arranged at the end of the power main machine and a sewing needle arranged in the connecting shell and fixedly connected with the end of the power main machine, the bottom end of the sewing needle penetrates through the inner wall of the connecting shell and extends outwards, and a bird nest preventing structure is arranged on the outer wall of the connecting shell. One side of the connecting disc is fixed to the outer wall of the connecting shell, the telescopic air cylinder is arranged on the other side of the connecting disc, a transmission frame is arranged at the bottom of the telescopic air cylinder, a swing thread pulling structure is arranged at the end of the transmission frame, and when the sewing needle moves up and down for sewing, the telescopic air cylinder works synchronously; the swing thread pulling structure swings through the transmission frame to straighten and flatten the sewing thread.

The tail end sewing device structurally comprises a shell, a sewing groove and a fixing base, the sewing groove is formed in the end face of the shell, a guide structure and a transmission device are arranged in front of and behind the sewing groove respectively, a penetrating hole is formed in the middle of the sewing groove, and the fixing base is fixed to the top of the shell. The shell is connected with a flange at the tail end of the manipulator, a transmission fluted disc is arranged in the shell and is in meshed connection with a first servo motor, a limiting pipe is fixedly installed at the right position in the shell, a needle seat is installed on the end face of the limiting pipe, and the bottom of the needle seat is connected with a suture needle in a clamped mode. The second servo motor is meshed with the gear to drive the transmission roller to rotate and make contact with the end face of the prefabricated part to drive the transmission roller to move, then the prefabricated part is supported by the driven wheel to move, the situation that the prefabricated part deviates leftwards and rightwards in the sewing process is prevented, the situation that sewing of the prefabricated part deviates is avoided, and the quality of produced products is improved.

The technical scheme belongs to the technical field of sewing machines, and particularly relates to a double-moving-cutter thread trimming sewing machine which comprises a rack, a thread trimming mechanism and a rotating shuttle mechanism. The thread trimming mechanism comprises a first movable cutter assembly, a second movable cutter assembly and a driving assembly; the first movable cutter assembly and the second movable cutter assembly are rotationally arranged on the outer side of the matched rotating shuttle mechanism in a sleeving mode. The driving assembly drives the first movable cutter assembly to rotate between a first position and a second position around the axis and drives the second movable cutter assembly to move between a third position and a fourth position around the rotating axis. The first movable cutter assembly comprises a first thread trimming movable cutter, and the first thread trimming movable cutter is provided with a thread hole groove allowing a machine needle to penetrate through and hooking a sewing thread in the sewing starting stage and a first thread hooking groove allowing the sewing thread to be hooked in the ending stage; the second movable cutter assembly comprises a second thread trimming movable cutter; the thread hole groove or the first thread hooking groove hooks the sewing thread, the second thread trimming movable cutter is driven to rotate around the axis to abut against the surface of the first thread trimming movable cutter, the cutting edges of the two thread trimming movable cutters coincide to cut off the sewing thread, thread ends are reduced, and production efficiency is improved.

The utility model discloses a thread trimming device of a sewing machine and the sewing machine with the thread trimming device, which belong to the technical field of sewing machine accessories, and comprise a blade, a first-stage oscillating bar mechanism, a second-stage oscillating bar mechanism, a third-stage oscillating bar mechanism and a telescopic component which are arranged in a panel of the sewing machine and are connected in sequence, the first-stage oscillating bar mechanism, the second-stage oscillating bar mechanism, the third-stage oscillating bar mechanism and the telescopic component are all connected with the sewing machine panel; the blade is arranged on one side above a bobbin case in the sewing machine panel; the sewing machine comprises a machine head and a sewing machine panel, the thread trimming device is installed in the sewing machine panel, and the blade is arranged on the lower right portion of feed dogs at the end of the sewing machine panel. The telescopic component drives the first-stage swing rod mechanism, the second-stage swing rod mechanism and the third-stage swing rod mechanism to drive the blade to swing, a sewing thread between a machine needle and a bobbin case can be cut off after sewing is finished, the downtime is shortened, the working efficiency is improved, and the labor intensity of workers is reduced; and the original sewing machine can be reformed, so that the production cost is reduced.

The invention discloses zipper belt sewing equipment, and relates to the field of garment processing. A zipper belt sewing device comprises a rack, a sewing machine head, a cloth conveying device and a zipper tooth traction device. The machine frame is provided with a working table top, and the sewing machine head comprises a sewing needle. The cloth conveying device comprises a clamping plate used for bearing and tensioning cloth, and the clamping plate can move in the first direction and is used for conveying the cloth to the working table top. The chain tooth traction device is used for conveying chain teeth to the working table in the first direction; the cloth conveying device and the chain tooth traction device can conduct synchronous conveying. The problem that in the prior art, sheet-shaped or special-shaped cloth of different sizes cannot be conveyed can be solved.

The utility model discloses a top fly machine, which relates to the technical field of sewing machines and comprises a workbench provided with a top fly processing area for placing cloth. The sewing mechanism comprises a machine head and an X-direction driving assembly, and the X-direction driving assembly is used for driving the machine head to slide in the X direction; the cutting mechanism is arranged above the front fly machining area and comprises a first cutting driving assembly, a second cutting driving assembly, a linear cutting knife and an angle knife, the first cutting driving assembly is used for driving the linear cutting knife to vertically ascend and descend, and the second cutting driving assembly is used for driving the angle knife to vertically ascend and descend; the presser foot mechanism can be pressed down above the cloth in the front fly processing area to drag the cloth to walk in the Y direction. According to the utility model, a single sewing needle can be adopted to sew on cloth according to a U-shaped track, the cost of a machine head is reduced, a Y-shaped kerf can be processed, and the production requirement is met.

The invention discloses an abdominal cavity suture needle assembly and a suture method thereof.The suture needle assembly comprises a suture needle (10), the suture needle (10) comprises a needle head (11) and a needle body (12) connected with the needle head (11), a penetrating hole (123) is formed in the end, away from the needle head (11), of the needle body (12), an expansion body (13) is further arranged on the needle body (12), and when the suture needle (10) punctures an abdominal cavity tissue (200), the expansion body (13) expands the penetrating hole (123); the expansion body (13) can be switched between a contraction position where the expansion body (13) is contacted with a tissue piercing port to contract and an expansion position where the expansion body (13) is arranged in the tissue to expand; the sewing thread (20) is matched with the penetrating hole (123); wherein the sewing needles (10) are sequentially arranged at intervals along the two sides or the circumferential edge of the abdominal cavity notch (210), and the sewing threads (20) sequentially penetrate through the sewing needles (10) located on the two sides or the circumferential edge of the abdominal cavity notch (210).

The invention relates to the technical field of garment processing, and discloses a pharmaceutical work clothes ear loop automatic sewing device and method.The pharmaceutical work clothes ear loop automatic sewing device comprises a workbench, a clamping plate assembly, a sewing machine and a movement control assembly, and the sewing machine is fixed to the upper surface of the workbench; the moving control assembly is used for controlling the clamping plate assembly to move on the plane of the workbench, the clamping plate assembly comprises a first clamping plate and a second clamping plate, one end of the first clamping plate is fixed to the moving control assembly, and the other end of the first clamping plate is hinged to the second clamping plate. The second clamping plate is provided with a plurality of ear loop buckle piece containing holes, the movable clamping plate is provided with a semicircular notch, the ear loop buckle piece containing holes are stepped holes, and the diameter of a large hole of each ear loop buckle piece containing hole is larger than that of the semicircular notch. The sewing operation is simple and quick, the close contact between an operator and the sewing needle can be greatly avoided, and the safety is improved.

The utility model provides a needle skipping prevention device which is arranged in a sewing machine, and the sewing machine comprises a bottom plate, a needle plate arranged on the upper surface of the bottom plate, a rotating shuttle arranged below the needle plate, and a machine needle which reciprocates up and down. The machine needle guides an upper thread to sequentially penetrate through a sewing material placed on the needle plate and the needle plate from top to bottom and then ascend, a thread ring is formed below the needle plate, the needle skipping prevention device comprises a thread blocking piece arranged between the rotating shuttle and the needle plate, and the thread blocking piece comprises a thread blocking part extending in the direction where the thread ring is located. The utility model further provides a sewing machine which comprises the needle skipping prevention device. The utility model has the beneficial effects that the thread blocking piece is arranged between the rotating shuttle and the needle plate, and the thread blocking piece applies extra resistance to the thread ring, so that the purpose of expanding the thread ring is achieved, the thread hooking of the rotating shuttle is more convenient, and the needle skipping phenomenon is reduced.

The present application effectively utilizes the operation information of a sewing machine. The operation information obtaining device includes: a storage portion, configured to store pattern information associating detection information and a sewing pattern of a sewing machine, where the detection information is configured to identify an action of a sewing needle of the sewing machine, and the sewing pattern corresponds to the detection information; an estimation portion, configured to estimate the sewing pattern of the sewing machine based on the pattern information and the detection information of the sewing needle detected by a detection device; and an obtaining portion, configured to obtain operation information of the sewing machine having the estimated sewing pattern.

Robotic sewing device comprising: a sewing head body; an upper arm attachable to the sewing head body and including a sewing needle aligned along a first axis; an engine; and a lower arm rotatably attachable to the sewing head body to be rotatable by the motor about a second axis defined transversely with respect to the first axis, the lower arm comprising: a needle plate; a butterfly gripper; a first drive train extendable through the forearm and configured to maintain a position of the throat plate during forearm rotation; and a second drive train extendable through the forearm and configured to drive the butterfly gripper during forearm rotation.

The synchronous gear ring cloth feeding mechanism facilitating cloth positioning comprises a presser foot support, a motor, a positioning plate, a gear ring and a gear, a limiting guide rail is arranged at the bottom of the presser foot support, the gear ring is embedded in the limiting guide rail, the motor is fixed on one side of the presser foot support, an output shaft of the motor is connected with the gear, and the gear is meshed with the gear ring. A presser foot plate extends out of the front end of the presser foot support, the positioning plate is arranged on one side of the presser foot plate, the positioning plate is inserted on the presser foot support and comprises a pressing plate and a positioning block, the positioning block is located on the outer side of the pressing plate, and the thickness of the positioning block is larger than that of the pressing plate. The cloth is driven by the gear ring to move forwards, so that displacement of the upper layer and the lower layer of the cloth due to no driving force is avoided; meanwhile, a positioning plate is arranged on the outer side of the presser foot plate to position and limit the outer side of the cloth, so that the track of a sewing needle is always parallel to the outer edge of the cloth, skewing of a sewing thread is avoided, and the sewing effect is guaranteed; and the positioning plate can be replaced, so that the device can be conveniently used under sewing thread widths of different specifications.

The utility model provides a sewing device for a safety air bag, which relates to the technical field of safety air bag sewing and comprises a workbench, a transmission component is arranged on the workbench and comprises a turntable, a rotating frame is fixedly connected onto the turntable, a second rotating shaft is rotatably connected onto the rotating frame, and a second fixing block is fixedly connected onto the second rotating shaft. A first rotating shaft is fixedly connected to the second fixing block, a connecting block is rotatably connected to the end, away from the second fixing block, of the first rotating shaft, a pricking needle is fixedly connected to the bottom of the connecting block, a fixing frame is fixedly connected to the workbench, a transmission frame is slidably connected to the fixing frame on the workbench, and a compression part is fixedly connected to the bottom of the transmission frame; the counter-acting force of the material to the sewing needle is more stable, the sewing convenience is improved, and the problems that in the prior art, when a safety air bag with high strength is sewn, a pricking needle is likely to be broken, and sewing is not easy are solved.

The present invention discloses a sewing mold for inner lining fabric, which includes a first template and a second template for clamping the inner lining fabric piece. A first sewing groove penetrating through the thickness direction thereof is formed on the first template, and a second sewing groove penetrating through the thickness direction thereof is formed on the second template. The first sewing groove and the second sewing groove have the same shape. A limiting line for limiting the sewing position of the sewing needle is arranged in the first sewing groove and / or the second sewing groove, and a blocking strip for blocking the edge of the inner lining fabric piece is arranged on the first sewing groove and / or the second sewing groove. The sewing mold for inner lining fabric of the present invention clamps the inner lining fabric piece by the first template and the second template, and sewing grooves corresponding to the sewing paths are formed on the templates. A limiting line for limiting the sewing operation of the sewing needle is arranged in the sewing grooves, so that the position of the sewing needle during insertion is more concentrated and there is no swing. It can not only speed up the sewing speed of employees, improve production efficiency, but also the sewing quality is controllable.

The invention relates to a manufacturing method of a carbon fiber three-dimensional prefabricated body, and belongs to the technical field of bottom-thread-free sewing of composite material high-performance fiber three-dimensional prefabricated bodies, and the method mainly comprises the following steps: firstly, preparing a fiber short rod for fixing a sewing thread; secondly, carbon fiber cloth is laid in a laminated mode; thirdly, a sewing needle penetrates through the laminated fiber cloth, when the sewing needle retracts, the manufactured short fiber rod is inserted into a retraction coil generated by a sewing thread, then the sewing thread is tightened, and the sewing thread is moved by the distance of one stitch; fourthly, the third step is repeated till sewing is completed; fifthly, removing the resin on the fiber thin rod by a high-temperature or water-soluble method and the like; sixthly, the fiber thin rods will become fiber bundles, and suture stress is redistributed. According to the method, after the sewing thread penetrates through the prefabricated body, the short fiber rod is placed to prevent the sewing thread from retracting, and after sewing is completed, resin of the thin rod is removed. The change of the state of the thin rod reduces the suture tension of the preform, reduces suture holes, and is favorable for improving the performance of the preform.

The invention discloses an adjustable stitching instrument for temporomandibular joint disc reduction, and relates to the technical field of temporomandibular joint disc stitching, the adjustable stitching instrument comprises a base, one side of the base is fixedly connected with a mounting belt, one end of the mounting belt is sleeved with a buckle shaped like a Chinese character'ri ', one side of the base is fixedly connected with a first sponge pad, and the other side of the base is fixedly connected with a second sponge pad. A second sponge mat is fixedly connected to one side of the base, an adjusting sewing mechanism is installed on the upper surface of one end of the base and used for adjusting the position of a sewing needle, and an auxiliary adjusting mechanism is installed on the upper surface of the other end of the base. According to the adjustable stitching instrument for temporomandibular joint disc reduction, the first wire tensioning rod and the second wire tensioning rod are designed, an arc-shaped circular bead hooks a positioning wire, a wire tensioning spring enables a first wire tensioning clamp and a second wire tensioning clamp to rotate relatively, and a wire hooking groove in one end of a stitching needle hooks the positioning wire of the first wire tensioning rod and the positioning wire of the second wire tensioning rod; the effect that the thread hooking operation is safe and accurate during sewing is achieved.

The utility model discloses a feeding structure of an integrated overlock sewing machine, which comprises a working table, a control table is arranged on the outer wall of the top of the working table, a plurality of thread guide rollers which are distributed at equal intervals are connected to the outer wall of one side of the working table, a connecting seat is fixed on the outer wall of one side of the working table, and a sewing needle is arranged on the outer wall of the bottom of the connecting seat. The sewing machine comprises a workbench, a sewing needle is arranged on the workbench, a presser foot is connected to the outer wall of the sewing needle, the conveying mechanism comprises a fixing seat installed on the outer wall of one side of the workbench, three motors are installed in the fixing seat, and fixing grooves matched with the motors are formed in the fixing seat. The feeding structure of the integrated overlock sewing machine has the advantages that the speed in the feeding process is finely controlled in a segmented mode, the situation that cloth is excessively stretched or damaged in the conveying process is avoided, external dust, impurities and the like are prevented from entering equipment, and the feeding structure is convenient to disassemble.

The invention relates to the technical field of textile, and provides a manufacturing process of activated carbon socks in order to solve the problem that an existing activated carbon fiber layer is poor in odor removal effect, the manufacturing process comprises the steps that S100, a supporting body layer is worn through a foot-shaped pattern, the foot-shaped pattern is provided with a needle hole for a sewing needle to penetrate through, and the foot-shaped pattern is provided with a space for containing a thread hooking mechanism; s200, the functional layers are at least placed in the sock toe area of the activated carbon sock, and then the multiple functional layers are connected with the body layer in a sewing mode; the sock toe area comprises a body layer, and the sock toe area is used for containing toes; and the elasticity of the functional layer is smaller than that of the body layer. The body layer is connected with the activated carbon layer after being supported by the foot-shaped pattern, it is ensured that the activated carbon layer covers the foot area when the activated carbon sock is worn, and therefore the deodorization effect is ensured; the structure of the body layer at least comprises the body layer and the body-activated carbon layer, so that the elastic function of the activated carbon sock is ensured on the premise of ensuring the overall deodorization and sterilization functions of the activated carbon sock.

1. Name of the Design Product: Knitted Fabric Folding and Opposite-eye Sewing Machine (Cylindrical). 2. Use of the Design Product: This machine is used to transfer the coils of an open cylindrical knitted fabric. The folding and opposite-eye are fed into the sewing machine, and the sewing needle passes through the knitted coils to sew them together. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

The sewing-needle-free woven garment comprises a garment body, a lower hem, cuffs, a collar edge, trouser legs and / or other opening edges of the garment body are wrapped and sealed in a U-shaped mode through a single-layer cloth strip, the inner sides of the two long edges of the single-layer cloth strip are fixed to the front face and the bottom face of the garment body through hot melt adhesive strips, and the inner sides of the two long edges of the single-layer cloth strip are fixed to the front face and the bottom face of the garment body through the hot melt adhesive strips. The single-layer cloth strip is in a rectangular long strip shape in a tiled state, and the single-layer cloth strip can completely wrap the lower hem, the cuffs, the collar edge and / or the edges of trouser legs of the clothes body. According to the invention, the composite edge sealing component of the hot melt adhesive tape and the single-layer fabric is adopted to replace traditional sewing threads, the edge of the fabric is completely coated and packaged in a bonding manner through hot-pressing one-time forming, no sewing thread trace exists, the softness and elasticity of the edge sealing structure are matched with those of a clothes main body, and the comfort of the clothes is ensured.

The utility model discloses a yarn feeder mechanism for sewing tubular fabrics, which comprises a yarn feeder rod and a yarn feeder, the yarn feeder is fixed at the front end of the yarn feeder rod, and a sewing thread can penetrate out of the yarn feeder; the yarn feeder further comprises a yarn feeder rod support, a yarn feeder rod supporting piece is arranged in the yarn feeder rod support, and the yarn feeder rod supporting piece is cylindrical and is matched with the yarn feeder rod support in a rotating mode. A through hole is formed in the radial direction of the yarn feeder rod supporting piece, and the yarn feeder rod penetrates through the through hole and is in sliding fit with the yarn feeder rod supporting piece; the middle part of the yarn feeder rod is arranged in the yarn feeder rod supporting piece in a penetrating manner; and the tail part of the yarn feeder rod is eccentrically and movably connected to the yarn feeder rod driving wheel. The suture needle is suitable for the scheme that only one needle is used for suturing, the movement of the suture needle can be ensured to be inevitably intersected with the track surface of the suture, and the suture is smoothly hooked.