A quick-turn sewing apparatus for sewing a zipper

Abstract

This invention relates to the field of sewing equipment technology and discloses a quick-turning sewing device for zipper sewing. The device includes a machine base, a control unit fixedly mounted on one side of the top of the machine base, multiple thread-binding rollers fixedly mounted on the control unit, a first lifting plate slidably connected to the top of one side of the control unit, and a second lifting plate slidably connected to the bottom of one side of the control unit. The first and second lifting plates correspond to each other. A pair of sliding rods are suspended from the bottom of the first lifting plate. This quick-turning sewing device for zipper sewing prevents the alignment piece from rebounding after touching the zipper. The worm gear allows the alignment piece to rotate, and after rotation, a person can manually inspect whether the alignment piece is in contact with the zipper. This ensures that the alignment piece can adapt well to zippers of different widths and sizes, improving the adaptability of the device.

Description

Technical Field

[0001] This invention relates to the field of sewing equipment technology, specifically to a quick-turning sewing device for zipper stitching. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to create one or more stitches on fabric, interweaving or sewing together one or more layers of fabric. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products made of leather, plastic, and paper. The stitches produced are neat, beautiful, flat, and strong. Sewing is fast and easy to use. Sewing machines have also given rise to art forms such as hand-pressed embroidery and computerized embroidery.

[0003] Existing equipment uses automatic sewing technology to sew fabrics. When sewing fabric, automatic sewing can sew along a straight line because the fabric surface is mostly flat. Therefore, when sewing ordinary fabrics, automatic sewing machines can sew very densely. However, when using automatic sewing machines to install zippers, although they can perform simple installation and fixation, the uneven surface of the zipper causes the fabric to automatically veer off course during sewing. This requires manual assistance to press the fabric to guide its movement and repeatedly adjust the alignment between the zipper end and the fabric, resulting in low processing efficiency. Furthermore, when turning and turning the fabric to sew the front and back sides, the turning operation is used to reinforce the stability of the zipper. When manually turning the fabric, it is necessary to separate the fabric from the machine, which can easily lead to the fabric sample and the zipper being slanted during the stitching process after installation. Therefore, we propose a fast-turning sewing device for zipper sewing. Summary of the Invention

[0004] The purpose of this invention is to provide a quick-turning sewing device for zipper stitching, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sewing device for zipper stitching with a quick-turning mechanism, comprising a machine base, a control machine fixedly mounted on one side of the top of the machine base, multiple thread-binding rollers fixedly mounted on the control machine, a first lifting plate slidably connected to the top of one side of the control machine, and a second lifting plate slidably connected to the bottom of one side of the control machine, the first and second lifting plates corresponding to each other, a pair of sliding rods suspended at the bottom of the first lifting plate, each sliding rod slidably connected to a sliding sleeve, a mounting platform fixedly mounted on one side of the sliding sleeve, a worm gear rotatably connected to the top center of the mounting platform, a worm rotatably connected to one side of the top of the mounting platform, the worm and the worm gear meshing and driving together, a rotating plate fixedly connected to the bottom of the worm gear, an alignment plate fixedly connected to one side of the rotating plate, a return spring fixedly connected to one side of each sliding sleeve, a locking sleeve fixedly connected to the other side of each sliding sleeve, a turntable threadedly connected to the locking sleeve, and the other end of the return spring abutting against the end of the sliding rod.

[0006] Preferably, multiple grooves are provided on both sides of the second lifting plate, and the distance between the grooves on each side of the second lifting plate is equal. External rods are fixedly connected to both sides of the bottom of the mounting platform, and a hammer head is fixedly installed between two external rods. The hammer head slides and connects with the groove after the first lifting plate and the second lifting plate are close together.

[0007] Preferably, a centering plate is fixedly installed in the middle of one side of the second lifting plate, and control rods are fixedly installed on both sides of one end of the first lifting plate. A needle seat is connected and fixed to the top of each control rod, and the bottom of the needle seat extends between the first and second lifting plates. The bottom of each needle seat is used to install a needle.

[0008] Preferably, a pair of mounting seats are fixedly installed on the top of the first lifting plate, and a lead screw is rotatably connected between the two mounting seats. The first lifting plate has a sliding groove near the bottom of the lead screw, and a sliding head is slidably connected to the sliding groove. The sliding head and the lead screw are threaded together. A second spring is fixedly connected to the bottom of the sliding head, and a grab plate is slidably connected to the bottom of the sliding head. Multiple grabbing needles are provided at the bottom of the grab plate.

[0009] Preferably, a motor is fixedly installed on the top surface of the first lifting plate, and a transmission belt is sleeved on the output shaft of the motor. One end of the transmission belt is fixedly connected to the lead screw.

[0010] Preferably, a second extension rod is fixedly connected to both sides of one end of the first lifting plate, a second toothed tube is fixedly connected to the bottom of one end of the second extension rod, the bottom of the second toothed tube extends to the surface of the control machine, a first extension rod is fixedly connected to both sides of one end of the second lifting plate, a first toothed tube is fixedly connected to the top of one end of the first extension rod, a gear meshes between the first toothed tube and the second toothed tube, an electric rod is keyed to the gear shaft, and the electric rod is fixedly connected to the machine base.

[0011] Preferably, the alignment piece is arc-shaped and made of plastic.

[0012] Preferably, an electromagnet is fixedly connected to one end of the energized pole, a pulley is sleeved on the outer ring of the energized pole, a connecting rod is fixedly installed on the control machine, a connecting plate is rotatably connected to the connecting rod, a base is rotatably connected to the connecting plate, and light sensors are slidably connected to both the upper and lower ends of the base, with the end of each light sensor extending to the surface of the first lifting plate and the second lifting plate respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This invention allows manual operation by rotating a worm gear with both hands. When the worm gear rotates, it causes the worm wheel to rotate, which in turn brings the two alignment pieces into contact with both sides of the zipper. This prevents the zipper from veering off course during automatic movement of the fabric. The worm wheel and worm gear also have a self-locking function, preventing the alignment pieces from rebounding after contacting the zipper. The worm wheel allows the alignment pieces to rotate, and after rotation, the operator can inspect whether the alignment pieces are in contact with the zipper. This ensures that the alignment pieces can effectively adapt to zippers of different widths and sizes, improving the adaptability of the device.

[0015] The first and second toothed tubes move in opposite directions, and the gears reverse, allowing the energized rod to drive a pair of light sensors to rotate while the first and second lifting plates move away from each other. Then, the first and second lifting plates are driven to move closer together again. The motor then reverses, and the gripper pushes the fabric that has already been sewn back. When the gripper pushes the fabric back a second time, there is no need to consider the alignment between the zipper and the fabric, as it was determined during the first sewing. The second sewing is only for reinforcement, and the fabric is turned over without changing its original position. This allows the device to quickly turn over the fabric while improving the stitching process and enhancing product quality control. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A;

[0018] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point B;

[0019] Figure 4 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0020] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point C;

[0021] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point D;

[0022] Figure 7 This is a schematic diagram of the slide bar, mounting platform, and their structures according to the present invention;

[0023] Figure 8 This is a schematic diagram of the planar structure of the energized pole and pulley of the present invention;

[0024] Figure 9 This is a schematic diagram of the slider and gripper structure of the present invention.

[0025] In the diagram: 1-Machine base; 2-Control unit; 3-Bundling roller; 4-First lifting plate; 401-Slide groove; 5-Second lifting plate; 501-Groove; 502-Centering plate; 6-Connecting rod; 7-First extension rod; 701-Second extension rod; 8-First toothed tube; 9-Second toothed tube; 10-Gear; 11-Electrifying rod; 1101-Electromagnet; 12-Pulley; 13-Optical sensor; 14-Mounting base; 15-Motor; 16-Transmission belt; 17-Lead screw; 18-Control rod; 19-Needle seat; 20-Slide rod; 21-Slide sleeve; 22-Mounting platform; 23-Worm gear; 2301-Alignment plate; 24-Worm; 25-Hammer; 26-External rod; 27-Return spring; 28-Turntable; 29-Locking sleeve; 30-Slide head; 31-Second spring; 32-Grab plate. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-9This invention provides a technical solution: a quick-turning sewing device for zipper stitching, comprising a machine base 1, a control machine 2 fixedly mounted on one side of the top of the machine base 1, multiple thread-binding rollers 3 fixedly mounted on the control machine 2, a first lifting plate 4 slidably connected to the top of one side of the control machine 2, and a second lifting plate 5 slidably connected to the bottom of one side of the control machine 2, the first lifting plate 4 and the second lifting plate 5 corresponding to each other, a pair of sliding rods 20 suspended at the bottom of the first lifting plate 4, each sliding rod 20 slidably connected to a sliding sleeve 21, a mounting platform 22 fixedly mounted on one side of the sliding sleeve 21, a worm gear 23 rotatably connected to the top center of the mounting platform 22, and a worm 24 rotatably connected to one side of the top of the mounting platform 22, the worm 24 and the worm gear 23 meshing. The transmission is combined. The bottom of the worm gear 23 is fixedly connected to a rotating plate. One side of the rotating plate is fixedly connected to an alignment plate 2301. Each sliding sleeve 21 is fixedly connected to one side of a recuperating spring 27. The other side of the sliding sleeve 21 is fixedly connected to a locking sleeve 29. A turntable 28 is threaded onto the locking sleeve 29. The other end of the recuperating spring 27 abuts against the end of the sliding rod 20. Multiple grooves 501 are opened on both sides of the second lifting plate 5. The distance between the grooves 501 on each side of the second lifting plate 5 is equal. External rods 26 are fixedly connected to both sides of the bottom of the mounting platform 22. A hammer head 25 is fixedly installed between two external rods 26. The hammer head 25 slides and connects to the groove 501 after being brought close together by the first lifting plate 4 and the second lifting plate 5.

[0028] A centering plate 502 is fixedly installed in the middle of one side of the second lifting plate 5. Control rods 18 are fixedly installed on both sides of one end of the first lifting plate 4. A needle seat 19 is fixedly connected to the top of each control rod 18. The bottom of the needle seat 19 extends between the first lifting plate 4 and the second lifting plate 5, and the bottom of each needle seat 19 is used to install a needle.

[0029] A pair of mounting seats 14 are fixedly installed on the top of the first lifting plate 4. A lead screw 17 is rotatably connected between the two mounting seats 14. A sliding groove 401 is provided on the bottom of the first lifting plate 4 near the lead screw 17. A sliding head 30 is slidably connected on the sliding groove 401. The sliding head 30 and the lead screw 17 are threaded together. A second spring 31 is fixedly connected to the bottom of the sliding head 30. A gripping plate 32 is slidably connected to the bottom of the sliding head 30. Multiple gripping needles are provided at the bottom of the gripping plate 32. The second spring 31 is between the sliding head 30 and the gripping plate 32. Therefore, when the mounting platform 22 passes the gripping plate 32, although there will be some interference, the second spring 31 will quickly intervene and compress, causing the gripping plate 32 to separate from the mounting platform 22, which facilitates the sewing of the zipper.

[0030] A motor 15 is fixedly installed on the top surface of the first lifting plate 4. A transmission belt 16 is sleeved on the output shaft of the motor 15. One end of the transmission belt 16 is fixedly connected to the lead screw 17.

[0031] The first lifting plate 4 has a second extension rod 701 fixedly connected to both sides of one end. The bottom of one end of the second extension rod 701 is fixedly connected to a second toothed tube 9, which extends to the surface of the control machine 2. The second lifting plate 5 has a first extension rod 7 fixedly connected to both sides of one end. The top of one end of the first extension rod 7 is fixedly connected to a first toothed tube 8. A gear 10 meshes between the first toothed tube 8 and the second toothed tube 9. The shaft of the gear 10 is keyed to an electric rod 11, which is fixedly connected to the machine base 1.

[0032] The alignment piece 2301 has an arc shape and is made of plastic.

[0033] In the zipper sewing process, firstly, two pieces of fabric are manually picked up and their seams are aligned. Then, the zipper is placed between the two pieces of fabric (the zipper can be positioned above or below the two pieces of fabric). Next, the two pieces of fabric and the zipper are placed between the first lifting plate 4 and the second lifting plate 5. Then, the first lifting plate 4 is driven to descend by the manual operation of the control machine 2. During the descent of the first lifting plate 4, the second extension rod 701 descends, causing the second toothed tube 9 to descend. When the second toothed tube 9 descends, it drives the gear 10 to rotate. When the gear 10 rotates, it can drive the first toothed tube 8 to rise. The bottom of the first toothed tube 8 is fixedly connected to the first extension rod 701, so during the descent of the first lifting plate 4, it can... Simultaneously, the second lifting plate 5 is raised, bringing the distance between the first lifting plate 4 and the second lifting plate 5 closer. When the first lifting plate 4 and the second lifting plate 5 are close to overlap, the distance between the fabric and the first lifting plate 4 and the second lifting plate 5 is relatively small. At the same time, the gripping plate 32 contacts the ends of the two overlapping pieces of fabric, and then the back drive motor 15 is rotated. During the rotation of the motor 15, the transmission belt 16 is driven to rotate. When the transmission belt 16 rotates, it drives the lead screw 17 to rotate, so that the slide head 30 is located on the lead screw 17 under the guidance of the slide groove 401 to perform transmission, so that the gripping plate 32 can perform linear traction on the fabric. At the same time, the control rod 18 is automatically raised and lowered by electronic control, so that the piercing needle on the needle seat 19 can drive the rope into the fabric.

[0034] However, before performing this process, each mounting platform 22 can be manually held by both hands to loosen the turntable 28, so that the locking sleeve 29 can slide on the slide rod 20. After the locking sleeve 29 is movable, the slide sleeve 21 can slide on the slide rod 20, so that the recoil spring 27 is stretched. When the mounting platform 22 is located at one end of the first lifting plate 4, the turntable 28 is tightened again to fix the position of the mounting platform 22.

[0035] Next, the operator manually rotates the worm gear 24. When the worm gear 24 rotates, it causes the worm wheel 23 to rotate. The rotation of the worm wheel 23 brings the two alignment pieces 2301 into contact with both sides of the zipper. This prevents the zipper from veering off course during automatic movement of the fabric. At the same time, the worm wheel 23 and the worm gear 24 have a self-locking function, which prevents the alignment pieces 2301 from rebounding after touching the zipper. The worm wheel 23 allows the alignment pieces 2301 to rotate, and after the alignment pieces 2301 rotate, the operator can inspect whether the alignment pieces 2301 are in contact with the zipper. This ensures that the alignment pieces 2301 can adapt well to zippers of different widths and sizes, improving the adaptability of the device.

[0036] Furthermore, once the above process is completed, when the first lifting plate 4 and the second lifting plate 5 are close together, the hammer head 25 and the groove 501 are aligned. As the hammer head 25 descends, it moves into the groove 501, and the bottom of the hammer head 25 directly contacts the fabric. This allows the hammer head 25 to pull the fabric at its bottom into the groove 501 during its descent. This process separates the two pieces of fabric, allowing their opposing surfaces to overlap with the side of the zipper. It also allows the hammer head 25 to slide on the groove 501. Therefore, when the turntable 28 is loosened, the locking sleeve 29 can move, allowing the hammer head 25 to slide on the groove 501 under the elastic pull of the recoil spring 27. This increases the contact area between the fabric and the side of the zipper, making the contact stronger and increasing the sewing capability of the zipper and fabric.

[0037] Furthermore, an electromagnet 1101 is fixedly connected to one end of the energized rod 11, a pulley 12 is sleeved on the outer ring of the energized rod 11, a connecting rod 6 is fixedly installed on the control machine 2, a connecting plate is rotatably connected to the connecting rod 6, a base is rotatably connected to the connecting plate, and light sensors 13 are slidably connected to both the upper and lower ends of the base, with the ends of each light sensor 13 extending to the surfaces of the first lifting plate 4 and the second lifting plate 5 respectively.

[0038] Firstly, there is a pair of light sensors 13 (not shown in the figure), which can move relative to each other on the base, moving away from and closer to each other. The base adopts a damping design, which can drive the pair of light sensors 13 closer when the first lifting plate 4 and the second lifting plate 5 are close together. When the light sensors 13 are in normal state, they can be manually reset to both ends of the base. When the motor 15 drives the thread to rotate, the screw 17 drives the slide head 30 to be located at the other end of the machine table 1. At this time, the gripper 32 is located at the other end of the machine table 1. Therefore, the fabric and zipper end that have been initially sewn can be brought into contact with the light sensor 13 and located above the light sensor 13. After the light sensor 13 is blocked by light, it transmits information to the control machine 2. The control machine 2 automatically energizes the electromagnet 1101, so that the pulley 12 is fixed by the electromagnet 1101 and the energized rod 11. When it is necessary to turn the fabric over, The controller 2 automatically controls the first lifting plate 4 to reset and rise, while the first lifting plate 4 and the second lifting plate 5 move away from each other. During this process, the first toothed tube 8 and the second toothed tube 9 move in opposite directions, and the gear 10 reverses, so that the energized rod 11 can drive a pair of light sensors 13 to hold the fabric and rotate it as the first lifting plate 4 and the second lifting plate 5 move away from each other. Then, the controller drives the first lifting plate 4 and the second lifting plate 5 to move closer to each other again. Then the motor 15 reverses, and the gripper 32 pushes the fabric that has been sewn back. When the gripper 32 pushes the fabric back for the second time, it does not need to consider the alignment between the zipper and the fabric, because it has been determined during the first sewing. The second sewing is only used for reinforcement. The fabric is turned over without changing its original position, so that the device can quickly turn over the fabric while improving the needle and thread sewing process and improving the quality control of the product.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-turning sewing device for zipper stitching, comprising a machine base (1), characterized in that: A control unit (2) is fixedly installed on one side of the top of the machine base (1). Multiple wire-binding rollers (3) are fixedly installed on the control unit (2). A first lifting plate (4) is slidably connected to the top of one side of the control unit (2), and a second lifting plate (5) is slidably connected to the bottom of one side of the control unit (2). The first lifting plate (4) and the second lifting plate (5) correspond to each other. A pair of sliding rods (20) are suspended at the bottom of the first lifting plate (4). Sliding sleeves (21) are slidably connected to both sliding rods (20). An installation platform (22) is fixedly installed on one side of the sliding sleeves (21). A worm gear (23) is rotatably connected to the top center. A worm (24) is rotatably connected to one side of the top of the mounting platform (22). The worm (24) and the worm gear (23) mesh together. A rotating plate is fixedly connected to the bottom of the worm gear (23). An alignment plate (2301) is fixedly connected to one side of the rotating plate. A recoil spring (27) is fixedly connected to one side of each sliding sleeve (21). A locking sleeve (29) is fixedly connected to the other side of each sliding sleeve (21). A turntable (28) is threaded onto the locking sleeve (29). The other end of the recoil spring (27) abuts against the end of the sliding rod (20). The second lifting plate (5) has multiple grooves (501) on both sides. The distance between the grooves (501) on each side of the second lifting plate (5) is equal. The bottom sides of the mounting platform (22) are fixedly connected with external rods (26). A hammer head (25) is fixedly installed between the two external rods (26). The hammer head (25) is slidably connected to the groove (501) after the first lifting plate (4) and the second lifting plate (5) are close together. A pair of mounting seats (14) are fixedly installed on the top of the first lifting plate (4). A lead screw (17) is rotatably connected between the two mounting seats (14). A sliding groove (401) is provided on the bottom of the first lifting plate (4) near the lead screw (17). A sliding head (30) is slidably connected on the sliding groove (401). The sliding head (30) and the lead screw (17) are threaded together. A second spring (31) is fixedly connected to the bottom of the sliding head (30). A grab plate (32) is slidably connected to the bottom of the sliding head (30). A plurality of grabbing needles are provided at the bottom of the grab plate (32). The first lifting plate (4) is fixedly connected to two sides of one end with a second extension rod (701), and a second toothed tube (9) is fixedly connected to the bottom of one end of the second extension rod (701). The bottom of the second toothed tube (9) extends to the surface of the control machine (2). The second lifting plate (5) is fixedly connected to two sides of one end with a first extension rod (7), and a first toothed tube (8) is fixedly connected to the top of one end of the first extension rod (7). A gear (10) meshes between the first toothed tube (8) and the second toothed tube (9). An electric rod (11) is keyed to the shaft of the gear (10). The electric rod (11) is fixedly connected to the machine base (1). An electromagnet (1101) is fixedly connected to one end of the energized rod (11). A pulley (12) is sleeved on the outer ring of the energized rod (11). A connecting rod (6) is fixedly installed on the control machine (2). A connecting plate is rotatably connected to the connecting rod (6). A base is rotatably connected to the connecting plate. A light sensor (13) is slidably connected to both the upper and lower ends of the base. The end of each light sensor (13) extends to the surface of the first lifting plate (4) and the second lifting plate (5).

2. The quick-turning sewing device for zipper stitching according to claim 1, characterized in that: A centering plate (502) is fixedly installed in the middle of one side of the second lifting plate (5). Control rods (18) are fixedly installed on both sides of one end of the first lifting plate (4). A needle seat (19) is connected and fixed at the top of each control rod (18). The bottom of the needle seat (19) extends between the first lifting plate (4) and the second lifting plate (5), and the bottom of each needle seat (19) is used to install a needle.

3. A quick-turning sewing device for zipper stitching according to claim 2, characterized in that: A motor (15) is fixedly installed on the top surface of the first lifting plate (4). A transmission belt (16) is sleeved on the output shaft of the motor (15). One end of the transmission belt (16) is fixedly connected to the lead screw (17).

4. A quick-turning sewing device for zipper stitching according to claim 3, characterized in that: The alignment piece (2301) is arc-shaped and made of plastic.

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