55results about "Leather sewing" patented technology

The utility model discloses a leather glove processing sewing machine with a hand pressing prevention function, and relates to the technical field of sewing machines, the leather glove processing sewing machine comprises an adjusting mechanism, the adjusting mechanism comprises a working table, a collecting groove is formed in one side of the top of the working table in a penetrating mode, a knob is arranged on one side of the working table, a lead screw is arranged in a clamping groove formed in the working table, and a clamping groove is formed in the other side of the working table; a bearing seat is arranged at the end, away from the rotary knob, of the lead screw, two moving blocks are arranged outside the lead screw, and sliding blocks are arranged on the two sides of the two moving blocks. The adjusting piece is rotated clockwise to drive the pressing plate to press downwards, the leather gloves laid on the placing table can be pressed and fixed, the situation that the hands of an operator hold the leather gloves is avoided, the risk that the hands are crushed by a needle head is reduced, the screw rod is driven to rotate by rotating the rotary knob, and then the leather gloves on the placing table can move synchronously, so that the safety of the operator is improved. The purpose of sewing the leather gloves is achieved.

An apparatus and method for applying stitches to a decorative component having a three dimensional configuration is provided. A head for applying stitches to a decorative component having a three dimensional configuration, including: a needle bar assembly operatively coupled to the head; a looper configured to cooperate with the needle bar assembly in order to provide a plurality of stitches in the decorative component, the looper rotating in a plane parallel to the decorative component; a post assembly configured to drive the looper in a reciprocating fashion in the plane, wherein the post assembly is operatively coupled to a motor configured to drive the needle bar assembly in a reciprocating fashion, the post assembly being operatively coupled to the head via a cylinder arm assembly and a downshaft assembly; and wherein the cylinder arm assembly is rotated in a synchronized manner with a rock frame through mechanical linkage connecting a rock frame drive shaft to the cylinder arm assembly.

To provide a leather fabric formed so as to have good appearance by making continuous sewing machine stitches by lock stitch sewing on a surface using relatively thick multifilament yarn.SOLUTION: A leather product is formed by making sewing machine stitches by lock stitch sewing on a leather fabric, and has a first yarn constituting the sewing machine stitches on a first surface on the front side of the leather fabric, and a second yarn constituting the sewing machine stitches on a second surface on the rear side of the leather fabric. Thickness of the leather fabric is 2 to 12 millimeters. The first yarn and the second yarn are multifilament yarns. Thickness of the first yarn is 1600 to 4000 dtex and thicker by 600 dtex or more than the second yarn. Thickness of the second yarn is 1000 to 1800 dtex. Knot between the first yarn and the second yarn is located closer to a second surface in a thickness direction of the leather fabric.SELECTED DRAWING: Figure 2

The utility model relates to the technical field of garment processing. A twill quilting line template comprises a foldable middle plate, a left plate and a right plate, the left plate and the right plate are rotatably mounted on two sides of the middle plate, the left plate and the right plate can be folded towards the middle to be pressed on the middle plate, symmetrical twill quilting lines are arranged on the left plate and the right plate, and hollow grooves corresponding to the twill quilting lines on the left plate and the right plate are formed in the middle plate. The utility model provides a twill quilting template which can effectively improve quilting efficiency and finished product quality, can finish quilting through one template, and is convenient to operate and use. The technical problems that in the prior art, the effect of PU leather during twill quilting is difficult to guarantee, common flatcar twill quilting cloth is prone to twist and deformation, the quality is seriously affected, and the processing efficiency is low are solved.

The invention relates to the technical field of sewing machines and discloses a bag sewing machine which comprises a sewing machine body, a limiting assembly is installed on the right side of the sewing machine body, a limiting cylinder is installed in the sewing machine body, a needle head is installed in the limiting cylinder through a bolt, and a base is slidably connected to the bottom of the sewing machine body. A stabilizing assembly is installed in the base, a supporting assembly is installed at the top of the base, a feeding assembly is installed in the supporting assembly, the stabilizing assembly comprises a U-shaped toothed plate, and two deflection gears are connected to the surface of the U-shaped toothed plate in an engaged mode. By arranging the stabilizing assembly, an adjusting lead screw is rotated firstly, so that a U-shaped toothed plate moves in the vertical direction, a deflection gear rotates under the meshing action of the U-shaped toothed plate, a long rod drives an abutting plate to deflect, and therefore one side of the abutting plate abuts against the top of the workbench, and the device can be more stable when working; and the working stability of the device is improved.

The utility model discloses a shoelace or stripping auxiliary device which is characterized in that the shoelace or stripping auxiliary device comprises an auxiliary plate detachably arranged on a sewing machine, the sewing machine comprises a sewing table, a cloth feeding wheel and a machine needle aligned to the sewing table, and the upper portion of the auxiliary plate is provided with a transverse strip guide through hole allowing a shoelace or stripping to penetrate through. And the transverse strip guide through hole is positioned above the sewing table and is aligned with the machine needle. The transverse strip guide through hole of the shoelace or stripping auxiliary device is formed according to the width of the shoelace or stripping, when the shoelace or stripping auxiliary device is used, the shoelace or stripping only needs to penetrate through the transverse strip guide through hole and is placed among a sewing table, a cloth feeding wheel and a machine needle, then a sewing machine is started, the transverse strip guide through hole has a guide function on the shoelace or stripping, a sewing thread is smoother, and the production efficiency is improved. The quality of the shoelace or the drawn strip after sewing is guaranteed, the shoelace or the drawn strip does not need to be manually held in the sewing process, the labor intensity of workers is greatly reduced, and only a new shoelace or a new drawn strip needs to be placed after the shoelace or the drawn strip is sewn.

To form continuous and attractive machine stitches on the surface of a leather fabric using a comparatively thick multifilament thread with a lock stitch.SOLUTION: The manufacturing method of a leather product includes a thread preparation step of preparing an upper thread and a lower thread for a sewing machine, a placement step of placing the leather fabric on a needle plate with the back side facing up, and a sewing step of sewing the leather fabric with a lock stitch. The thickness of the leather fabric is 2 to 12 millimeters. The upper thread and the lower thread are multifilament threads. The thickness of the upper thread is 1000 to 1800 decitex. The thickness of the lower thread is 1600 to 4000 decitex, which is 600 decitex or more thicker than the upper thread. In the thread preparation step, the tension of the upper thread is adjusted to 15 to 21 newtons, and the tension of the lower thread is adjusted to 1 to 2 newtons.SELECTED DRAWING: Figure 3

Presented are automated manufacturing systems for fabricating engineered textiles, footwear and apparel formed with such engineered textiles, methods for making such engineered textiles, and memory-stored, processor-executable instructions for operating such manufacturing systems. An automated manufacturing system constructs engineered textiles from workpieces composed of superposed, unwoven wires. The system includes a movable end effector bearing a stitching head and an image capture device. The stitching head has a thread feeder and sewing needle to generate stitches. The image capture device captures images of the workpiece and outputs data indicative thereof. A system controller receives this image capture device data and locates, from the captured image of the workpiece, gaps defined between quadrangles of the superposed wires. The controller commands the end effector to sequentially move the stitching head and thereby align the sewing needle with the gaps, and commands the stitching head to insert a succession of stitches within these gaps.

The utility model discloses a shoe material delivery mechanism for shoemaking equipment, which comprises a machine body and a sewing table for placing the machine body, the machine body is provided with a sewing part for sewing external shoemaking materials, the sewing table is provided with a delivery mechanism, the position of the sewing table corresponding to the delivery mechanism is provided with a through hole, and the through hole is communicated with the delivery mechanism. The conveying mechanism comprises a first part correspondingly arranged above the through hole, a second part correspondingly arranged below the through hole and a motor used for driving the second part to move, the first part and the second part are matched to convey the external shoemaking material towards the sewing part, and the first part is in contact with the second part; the contact position of the first part and the second part and the end, facing the sewing table, of the sewing part are arranged on the same horizontal line with the upper table top of the sewing table, the shoe material conveying mechanism for the shoemaking sewing machine can roll and press shoe materials to enable the shoe materials to enter the sewing link smoothly, stitch skipping is not prone to occurring, and conveying is stable and convenient.

The invention relates to the technical field of seat cover processing, and discloses a leather sewing device for automobile seat cover production, which comprises a sewing table, a pressing plate is arranged above the sewing table, a longitudinal sliding groove is formed in the right upper part of the pressing plate, a mounting seat is slidably connected in the longitudinal sliding groove, and a sewing machine is fixedly mounted on the surface of the mounting seat. The sewing end of the sewing machine corresponds to the right edge of the pressing plate. When two pieces of leather need to be sewn, the first hydraulic rod is controlled to extend to drive the lifting frame and the pressing plate to move downwards, the two pieces of leather can be pressed, then the sewing machine slides on the surface of the longitudinal sliding groove, the purpose of pressing and sewing the two pieces of leather is achieved, the sewing quality of the chair cover is ensured, and in the using process, the sewing efficiency is improved. The transverse lead screw is driven by the servo motor to rotate, and the positions of the transverse moving seat and the pressing plate can be transversely adjusted, so that the position of leather located on the bottom side of the pressing plate is conveniently adjusted, and convenience is provided for sewing work.

An automated manufacturing system (300) for constructing an engineered textile (132) from a workpiece (132') composed of superposed wires (140, 142), the manufacturing system (300) comprising: a movable end effector (302); a stitching head (310) mounted to the movable end effector (302) and including a thread feeder (316) and a sewing needle (320) cooperatively configured to generate stitches; an image capture device (330) mounted to the movable end effector (302) and configured to capture an image of the workpiece (132') and output data indicative thereof; and a system controller (304) operatively connected to the movable end effector (302), the stitching head (310), and the image capture device (330), the system controller (304) being programmed to: receive, from the image capture device (330), the data indicative of the captured image of the workpiece (132'); locate, from the captured image of the workpiece (132'), multiple gaps each defined between a respective quadrangle of the superposed wires (140, 142); command the movable end effector (302) to sequentially move the stitching head (310) to thereby align the sewing needle (320) with each of the gaps; and command the stitching head (310) to insert a succession of stitches within the gaps between the superposed wires (140, 142).

According to the luggage splicing technology based on the tenon-and-mortise concave-convex structure, all luggage materials and novel suture line materials (such as artificial science and technology new materials) are covered, machining is conducted by means of the 3D cutting and carving technology, the precision is adjusted according to the material characteristics, and the thickness after splicing is consistent with that of a single-layer material. The technology breaks through the limitation of a traditional process, inherits the mortise and tenon culture, assists in building a Chinese luxury luggage brand and promotes culture output, and is suitable for splicing luggage and related products.

To suppress positional deviation in stitches in a skin.SOLUTION: A manufacturing device of skin with stitch includes: a skin receiving jig 1 having a three-dimensional-shaped receiving surface 7 for receiving a three-dimensional-shaped skin 40, and a fixing device (adsorption device) for fixing the skin 40 which the receiving surface 7 has received; a sewing machine 20 for sewing stitches on the skin 40; a robot 30 for taking out the skin from the skin receiving jig 1, moving it to the sewing machine 20 and feed-driving it; and a control device for controlling the sewing machine 20 and the robot 30.SELECTED DRAWING: Figure 1

The present invention proposes an auxiliary processing part of a shoe upper decoration structure, comprising an upper plywood and a lower plywood spaced apart, an M-shaped covering strip channel formed between the upper plywood and the lower plywood, and two V-shaped decorative strip channels formed on the lower side of the lower plywood; a first sewing groove is provided at a position corresponding to the middle of the covering strip channel on the lower plywood, and a second sewing groove is provided on both sides of the lower plywood, and the two second sewing grooves are respectively located on both sides of the covering strip channel, the first sewing groove and the second sewing groove are both arranged along the front and rear directions of the lower plywood, the rear sides of the first sewing groove and the second sewing groove both pass through the rear side of the lower plywood, and the front end of the first sewing groove is located in front of the front end of the second sewing groove; needle holes are provided on the upper plywood corresponding to the front ends of the first sewing groove and the second sewing groove, respectively, which can guide the movement of the covering strip and the decorative strip, automatically fold the covering strip, and automatically wrap the decorative strip, thereby improving the processing efficiency and molding quality of the decorative structure.

Method for sewing decorative seams with the following process steps: - the sewing dress (12) is positioned in the sewing machine (10) in such a way that the seam stub (28) of the functional seam (24), which is approximately teardrop-shaped in cross-section, runs in a seam groove (40) of the sewing machine (10), - the sewing garment (12) is fixed in the seam trench (40) by a seam sword (54) which is placed on the functional seam (24) from the side (56) of the sewing garment (12) opposite the seam trench (40), - the two reference elements (20, 22) of the sewing dress (12) connected by the functional seam (24) are brought into a position approximately perpendicular to the functional seam (24) by a presser set (50) of the sewing machine (12) and held there, - at least one decorative seam is applied parallel to the functional seam (24) by means of a sewing needle (58) positioned laterally next to the seam blade (54), - characterized in that - the seam stub (28) of the functional seam (24) is fixed approximately at the level of the functional seam (24) on both sides by a taper (48) at the upper edge area of ​​the seam trench (40).

The utility model relates to the technical field of bag manufacturing, and discloses a bag manufacturing overlock machine which comprises a supporting table, an overlock machine body is fixedly installed on the edge of the top of the supporting table, an installation block is in lap joint with the outer side of the overlock machine body, a first screw pin is in threaded connection with the interior of the installation block, and a cover plate is connected to the top of the installation block in a clamped mode. A rotating shaft is rotatably connected to the interior of the mounting block, a roller is fixedly connected to the exterior of the rotating shaft, a magnet is fixedly connected to the exterior of the overlock machine, an iron block is attracted to the outer side of the magnet, and a connecting rod is fixedly connected to one side of the iron block. Compared with the prior art, the leather overlock device has the advantages that the installation block and the cover plate are both linear, leather can linearly move in the gap between the installation block and the cover plate, the installation block, the cover plate and the needle head are located on the same horizontal line, and therefore the phenomenon that the leather deviates in the overlock process can be prevented.

The leather cloth sewing equipment comprises a base, the top of the base is fixedly connected with a stand column, one side of the stand column is connected with a transverse column in a sliding mode, one side of the stand column is provided with a lifting assembly, and the lifting assembly is used for driving the transverse column to move. The lifting assembly drives the transverse column to move on one side of the stand column, the sewing machine is made to be close to leather cloth, the leather cloth is sewn according to processing requirements, meanwhile, the feeding assembly drives the discharging table to move on the top of the base, the leather cloth sewing efficiency is effectively improved, and in the sewing process, the sewing efficiency is improved. The dust collection fan operates and sucks leather scraps and dust generated by sewing into the dust collection box through the dust collection pipe, meanwhile, the dust collection frame effectively collects the leather scraps and the dust, the leather scraps and the dust are treated through the effect of the dust collection groove, and the situation that dust accumulation influences the leather cloth sewing quality and normal operation of sewing equipment is avoided; therefore, the leather cloth sewing efficiency and quality are integrally improved.

A sewing machine for sewing articles, comprising: a turret (3), constrained to a base (2), which bears a sewing needle (4), facing downwards, with the relative sewing yarn (5); first activating means, arranged in the turret, for movement of the needle; a profiled arm (8) supported, in an oscillating way, by a unit (10) borne by the base and rotatably supporting a bushing (11) located beneath the needle and open towards the needle, with the axis of the bushing being coaxial to the axis of oscillation of the arm; stabilising means (12), associated to the arm (8) destined, with the oscillation in one direction of the arm, to impress an oscillation in the opposite direction, and of equal amplitude, on the bushing (11); a rotary hook (13), located in the bushing (11); second activating means (14), acting in phase with the first activating means to draw the rotary hook in rotation for formation in the bushing, and in cooperation with the needle, with the relative sewing yarn (5), of a sewing stitch; means for connecting the unit (10) to the base (2) to enable the oscillation of the unit according to coaxial arcs of circumference the axis (C) of which intercepts the topmost point (T) reached by the end (53) of the rotary hook (13) during the course of the rotation thereof.

The invention relates to the field of upper pulling machines, in particular to an upper pulling machine for injection molding shoe production, which comprises a machine head, a machine needle assembly and a crochet needle assembly are arranged on the machine head, the machine needle assembly is used for conveying a thread group, and the crochet needle assembly is used for hooking the thread group; a feeding wheel is arranged on one side of the machine head, a blowing assembly matched with the feeding wheel is arranged on one side of the feeding wheel, and the blowing assembly is used for blowing out air to clean uppers; a dredging assembly is arranged on one side of the air blowing assembly and used for dredging a gas channel entering the air blowing assembly. A feeding wheel is arranged on one side of the machine head, a presser foot frame is arranged on one side of the presser foot frame, a presser foot wheel is arranged on one side of the presser foot frame, a guide frame is installed on the machine head, and the guide frame is used for conveying uppers into the position between the feeding wheel and the presser foot wheel in a matched mode.

A sewing machine for sewing articles, comprising: a turret (3), constrained to a base (2), which bears a sewing needle (4), facing downwards, with the relative sewing yarn (5); first activating means, arranged in the turret, for movement of the needle; a profiled arm (8) supported, in an oscillating way, by a unit (10) borne by the base and rotatably supporting a bushing (11) located beneath the needle and open towards the needle, with the axis of the bushing being coaxial to the axis of oscillation of the arm; stabilising means (12), associated to the arm (8) destined, with the oscillation in one direction of the arm, to impress an oscillation in the opposite direction, and of equal amplitude, on the bushing (11); a rotary hook (13), located in the bushing (11); second activating means (14), acting in phase with the first activating means to draw the rotary hook in rotation for formation in the bushing, and in cooperation with the needle, with the relative sewing yarn (5), of a sewing stitch; means for connecting the unit (10) to the base (2) to enable the oscillation of the unit according to coaxial arcs of circumference the axis (C) of which intercepts the topmost point (T) reached by the end (53) of the rotary hook (13) during the course of the rotation thereof.

The utility model belongs to the field of handicraft production discloses a kind of material fixing device for double needle sewing process, including the first clamping plate being fixedly arranged on ground;Second clamping plate is hingedly arranged on ground, and second clamping plate swings towards the direction close to or away from first clamping plate;Spring is fixedly connected between first clamping plate and second clamping plate, and the clamping surface of first clamping plate is abutted with the clamping surface of second clamping plate in free state;Pedal is hingedly arranged on ground, and its rotation axis is parallel with the rotation axis of second clamping plate;Pulling member is fixedly connected between pedal and second clamping plate, and the distance from the connecting point of pedal and pulling member to the connecting point of second clamping plate and pulling member is adapted to the length of pulling member.The utility model can improve the stability when material is fixed and the flexibility when leather material is finely adjusted, ensure sewing precision, improve the comfort and work efficiency of operator;The utility model is applicable to handicraft production industry, and is used for clamping material to be sewn.

The internal-expansion core-pulling type cone yarn taking device comprises a taking rod and a clamp, and the taking rod comprises a clamping jaw, a pull rod, a clamping spring, a first spring, a material rod base, a sleeve and a material rod head; a positioning groove is formed in the outer wall of the material rod head; a notch is radially formed in the upper end, close to the end surface, of the pull rod; under the action of the first spring, a lower end step of the pull rod is in contact with the upper end face of the material rod base for limiting, the lower end face of the pull rod is in contact with a bulge of the clamping jaw to unfold the clamping jaw, and the upper end face of the clamping jaw is in contact with the snap spring; the clamp comprises a positioning boss, a semicircular opening and a conical bowl-shaped body, the original operation process of workers is not changed when the manual clamp is matched with the material taking rod, and the problems that only one raw material can be manually taken each time, the same action is singly repeated, the efficiency is low, and the labor intensity of workers is large can be solved. When the automatic clamp is matched with the material taking rod, automatic equipment process operation can be achieved, production efficiency is greatly improved, production personnel are reduced, and benefits are greatly improved.

The utility model belongs to the technical field of upper pulling machines, and particularly discloses an upper pulling machine capable of preventing vamp wrinkles, which comprises an equipment body, one end of a limiting piece is fixedly connected with a main arc-shaped plate, an auxiliary arc-shaped plate is arranged on one side of the main arc-shaped plate, and auxiliary U-shaped limiting plates are symmetrically and fixedly arranged at one end of the top of the main arc-shaped plate and one end of the top of the auxiliary arc-shaped plate. An auxiliary threaded rod is arranged on one side of the auxiliary U-shaped limiting plate, main U-shaped limiting plates are symmetrically and fixedly arranged on the tops of the main arc-shaped plate and the auxiliary arc-shaped plate, a transmission shaft is arranged on the outer side of one of the main U-shaped limiting plates, and the transmission shaft penetrates through the main U-shaped limiting plate on the top of the main arc-shaped plate and is in threaded connection with the main U-shaped limiting plate. The distance between the main arc-shaped plate and the auxiliary arc-shaped plate can be adjusted through the transmission shaft, the gear, the chain and the clamping piece, the main arc-shaped plate and the auxiliary arc-shaped plate can be reinforced and limited through the main spring and the auxiliary spring, and the shoe upper can be limited through the main arc-shaped plate and the auxiliary arc-shaped plate when the shoe upper is processed in the later period.

Perforating device, comprising: a perforation head (4) with a vertically reciprocating rod (15) and a perforation tool (17) provided at a front end of the rod (15); a receiving base (6) arranged below the perforation head (4), wherein the receiving base (6) includes a receiving element (30b) configured to receive the perforation tool (17) which is lowered according to the lowering movement of the rod (15); a holding frame (14) configured to support a workpiece in an expanded state between the perforation tool (17) and the receiving base (6) in a planar direction orthogonal to the vertical direction of the rod (15), wherein the holding frame (14) is configured to be controlled to move in a two-dimensional direction, such as in a forward / backward direction of the plane and a right / left direction orthogonal to the forward / backward direction; and a damping material feeding mechanism (8) configured to feed a ribbon-like damping material (H) with a greater width than at least one working area of ​​the perforation tool (17), wherein the mechanism (8) feeds the material from the forward / reverse direction between the workpiece held in the holding frame (14) and a top surface of the receiving element (30b), wherein the mechanism (8) displaces damping material (H) at a speed corresponding to the vertical reciprocal movement of the perforation tool (17).

The invention relates to the technical field of slippers, and discloses an environment-friendly slipper and a manufacturing process thereof.The manufacturing process includes the steps that manufacturing raw materials are manufactured into an upper semi-finished product and a sole semi-finished product respectively, a sinking area is formed on the top face of the upper semi-finished product, a plurality of protrusions protruding downwards are formed on the sole semi-finished product, and pit areas are formed on the top face of the sole semi-finished product by the protrusions; the shoe upper semi-finished product is subjected to a punching procedure, and trimming margins are reserved on the two sides of the punched shoe upper semi-finished product; the assembling edges on the two sides of the punched semi-finished shoe upper are embedded into the sunken assembling area of the semi-finished shoe sole and connected and fixed through sewing, and a slipper with the edge to be cut is formed; and punching the slippers to be trimmed. According to the slipper, the assembling problem of the formed sole and the upper is solved, the supporting thickness of the sole is guaranteed through the protrusions, the protrusions crumple after being stressed, the road holding force of the sole is improved through the formed adsorption area, and the slipper can be recycled and reproduced, can be completely degraded and is environmentally friendly.

The utility model discloses a 3D toe cap cover plate mould, which relates to the field of shoemaking and comprises a template, a first guide pillar is arranged in the middle of the top of the template, the outer wall of the first guide pillar is respectively sleeved with a first pressing plate and a first limiting nut, and one side of the top of the template is connected with a cover plate through a hinge. And a second guide column is mounted on the other side of the top of the template. Through the arrangement of the first guide column, the first limiting nut and the first pressing plate, after a shoe head part is placed in the middle position of the template, a user firstly moves the first pressing plate upwards, then rotates the first pressing plate to enable the first pressing plate to be horizontally arranged, and then moves the first pressing plate downwards, so that the shoe head part is fixed; the bottom of the first pressing plate makes contact with the top of the toe cap portion, then the first limiting nut is rotated downwards, the first limiting nut makes contact with the top of the first pressing plate, and therefore the purpose of limiting the first pressing plate can be achieved, the first pressing plate can press the toe cap portion, and the stability of the toe cap portion is improved.

The invention relates to an apparatus and a method for applying dots to a decorative component having a three-dimensional configuration.A stitching head for a decorative component having a three-dimensional configuration, comprising: a needle bar assembly functionally coupled to the head; a looper configured to cooperate with the needle bar assembly to perform a plurality of stitches on the decorative component, the looper rotating in a plane parallel to the decorative component; a rod assembly configured to drive the looper in a reciprocating motion in the plane, where the rod assembly is functionally coupled to a motor configured to drive the needle bar assembly in a reciprocating motion, the rod assembly being functionally coupled to the head via a cylinder arm assembly and a downshaft assembly; and where the cylinder arm assembly is rotated in a synchronized manner with a swing frame by a mechanical link connecting a swing frame drive shaft to the cylinder arm assembly.

The utility model discloses a feeding transmission structure for a presser foot wheel of an upper pulling machine, which comprises a differential feeding assembly, a transmission assembly and a control assembly, and the differential feeding assembly comprises a differential feeding motor and a telescopic connecting shaft group; a guide rod extending outwards relative to the material pressing support is arranged on one side of the material pressing support set, an assembling groove and a transmission groove communicated with the assembling groove are formed in the other side of the material pressing support set, and a universal joint is arranged in the transmission groove; the first gear set is arranged in the assembling groove; the presser foot connecting seat is arranged below the material pressing bracket; and a second gear set and a presser foot wheel are arranged in the presser foot connecting seat. According to the utility model, the presser foot wheel of the upper pulling machine obtains an independent power source, and feeding in the sewing process of the presser foot wheel is controlled on the basis, so that an operator can control a vamp.

The invention relates to the technical field of riding boot production, in particular to a riding boot lifting lug sewing device which aims at solving the technical problem that in the prior art, the sewing installation process is tedious, and the riding boot lifting lug sewing device is mainly achieved through the following technical scheme that the riding boot lifting lug sewing device comprises a workbench, a sewing machine and a conveying device; the auxiliary device comprises a turn-over device, a lifting lug feeding device and a bending device, the turn-over device comprises a supporting piece and a turn-over piece, the bending device comprises a limiting piece and a bending piece, the positioning clamp comprises a first positioning piece and a second positioning piece, and the shaping device comprises a shaping table and a pressing and shaping device. The auxiliary device realizes standardization and process of mounting and fixing the lifting lug, reduces the influence of manual operation, saves labor, effectively solves the problem of tedious sewing and mounting processes, and achieves the purpose of automatic sewing production.

An apparatus and method for applying stitches to a decorative component having a three dimensional configuration is provided. A head for applying stitches to a decorative component having a three dimensional configuration, including: a needle bar assembly operatively coupled to the head; a looper configured to cooperate with the needle bar assembly in order to provide a plurality of stitches in the decorative component, the looper rotating in a plane parallel to the decorative component; a post assembly configured to drive the looper in a reciprocating fashion in the plane, wherein the post assembly is operatively coupled to a motor configured to drive the needle bar assembly in a reciprocating fashion, the post assembly being operatively coupled to the head via a cylinder arm assembly and a downshaft assembly; and wherein the cylinder arm assembly is rotated in a synchronized manner with a rock frame through mechanical linkage connecting a rock frame drive shaft to the cylinder arm assembly.