Yarn carding device for edge covering sewing processing

Abstract

The invention relates to the technical field of textile processing, and discloses a yarn carding device for hemming sewing processing, which comprises a workbench, a base is arranged on one side of the upper surface of the workbench, a first thread stand is arranged on the upper surface of the base, and second fixing rings are symmetrically arranged in the middle of the outer wall of the first thread stand. A sliding groove is formed in the second fixing ring, first rotating shafts are symmetrically and slidably connected into the sliding groove of the second fixing ring, second pawls are arranged on the outer walls of the first rotating shafts, second ratchet wheels are arranged at one ends of the second pawls, and the middle portions of the second ratchet wheels are fixedly arranged on the outer wall of the first coil holder. Flexible adjustment of related structures of the coil holder is achieved through cooperation of the second pawl and the second ratchet wheel and the coil holder. The angle of the yarn wheel frame can be changed according to actual requirements, so that the position of a bobbin placed on the tray can be correspondingly adjusted, and the phenomena of winding and knotting of yarns in the conveying process are effectively reduced. The problem that the coil holder cannot be adjusted is solved.

Description

Technical Field

[0001] The invention relates to the technical field of hemming sewing textile processing, in particular to a yarn combing device for hemming sewing processing. Background Art

[0002] In the textile and garment industry, hemming sewing technology plays an important role. It is widely used in the edge processing of various types of clothing, home textile products and many textile products, and is related to the final appearance quality and durability of the product.

[0003] However, during the actual hemming process, yarn-related issues often cause numerous problems. Previous yarn combing devices and associated yarn delivery methods were relatively rudimentary, lacking effective combing and control mechanisms from the moment the yarn is drawn from the spool to the moment it enters the sewing machine. For example, the fixed yarn rack structure made it difficult to flexibly adjust the yarn height and position according to different sewing requirements. This resulted in yarn entanglement and jamming during delivery, affecting sewing continuity.

[0004] During yarn feeding, the inability to adjust the yarn feeder often leads to friction and excessive bending, which can interfere with each other and prevent the yarn from entering the sewing machine accurately. This damages the fiber structure on the yarn surface, causing fuzzing. Fuzzed yarn not only affects the aesthetics of the finished product edge, but also creates fiber debris that can enter the sewing machine, disrupting normal sewing operations and even becoming embedded in the stitches, reducing the overall quality of the product. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides a yarn combing device for hemming sewing processing, which solves the problem that the thread rack cannot be adjusted.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A yarn combing device for hemming and sewing processing, comprising a workbench, a base is provided on one side of the upper surface of the workbench, a thread rack is provided on the upper surface of the base, a fixing ring 2 is symmetrically provided on the middle part of the outer wall of the thread rack 1, a slide groove is provided inside the fixing ring 2, a rotating shaft 1 is symmetrically slidably connected in the slide groove of the fixing ring 2, a pawl 2 is provided on the outer wall of the rotating shaft 1, a ratchet 2 is provided at one end of the pawl 2, the middle part of the ratchet 2 is fixedly provided on the outer wall of the thread rack 1, a wire pulley frame is provided on one side of the pawl 2, a plurality of trays are provided on the upper surface of the trays, a bobbin is provided on the upper surface of the wire rack, and a lifting mechanism is provided inside the thread rack 1.

[0007] Preferably, the lifting mechanism includes a motor, the outer wall of the motor is arranged at the bottom end of wire rack one, the output end of the motor is fixedly provided with a threaded rod, the outer wall of the threaded rod is threadedly connected to wire rack two, the outer wall of wire rack two is arranged on the inner wall of wire rack one, and the outer wall of wire rack one is provided with an adjustment mechanism.

[0008] Preferably, the adjustment mechanism includes a ratchet wheel 1, the middle portion of which is fixedly arranged on the outer wall of the wire rack 2, and pawls 1 are arranged on both sides of the tooth end of the ratchet wheel 1.

[0009] Preferably, a second rotating shaft is provided on one side of the first pawl, and a first fixing ring is slidably connected to both ends of the second rotating shaft, and the inner wall of the first fixing ring is provided on the outer wall of the second wire rack.

[0010] Preferably, a guide frame is provided at one end of the first pawl, a plurality of steering holes are provided on the outer wall of the guide frame, and a tension mechanism is provided on the outer wall of the second wire frame.

[0011] Preferably, the tension mechanism includes an articulated seat, one end of the articulated seat is arranged on the outer wall of the wire rack 2, the other end of the articulated seat is provided with a connecting rod, and the outer wall of the connecting rod is provided with a spring.

[0012] Preferably, a fixing block 1 is provided at one end of the spring, the bottom end of the fixing block 1 is provided at the top end of the wire rack 2, and a cross bar is provided at the top end of the connecting rod.

[0013] Preferably, a plurality of fixed blocks 2 are provided at the bottom end of the crossbar, the side walls of the fixed blocks 2 are rotatably connected to a rotating shaft 3, and the outer wall of the rotating shaft 3 is provided with a tension wheel.

[0014] Preferably, a sewing machine is provided on the other side of the upper surface of the workbench, a machine head is provided on one side of the sewing machine, a wire feed rack is provided on the upper surface of the sewing machine, a plurality of wire feed holes are provided on the outer wall of the wire feed rack, and legs are symmetrically provided on the lower surface of the workbench.

[0015] A method for using a yarn combing device for hemming and sewing processing, which is used for the yarn combing device for hemming and sewing processing, comprises the following steps: S1. Install the yarn: Place the device on a stable work surface, place the spool on the upper surface of the tray, which is located on the reel frame, and lead out the yarn; S2. Adjust the height of the wire rack: Start the motor, which drives the threaded rod to rotate, so that the wire rack 2, which is threadedly connected to the threaded rod, moves up and down along the inner wall of the wire rack 1 to adjust the height of the wire rack 2; S3, tension adjustment: The spring applies elastic force to the connecting rod, which is transmitted through the connecting rod and the cross bar, so that the tension wheel on the fixed block 2 produces appropriate pressure on the yarn, adjusts the yarn tension, and allows the yarn to pass between the tension wheels to ensure appropriate yarn tension; S4, yarn guiding: After the yarn is led out from the reel frame, it passes through the turning hole on the guide frame and guides the yarn along the predetermined route; S5. Yarn introduction machine: The yarn that has been combed and tension-adjusted is passed through the thread feed hole of the thread feed rack and introduced into the head of the sewing machine; S6. Start sewing process: operate the sewing machine and use the machine head to sew the edge of the material according to the set program and parameters. During this period, the yarn is continuously transported from the carding device to participate in the sewing work.

[0016] Working principle: The yarn is installed on the bobbin, and the bobbin is placed on the tray of the reel frame. The reel frame can adaptively rotate according to the yarn drawing situation through the rotating shaft 1, pawl 2 and ratchet 2 structure connected to the reel frame 1, so as to facilitate the smooth drawing of the yarn.

[0017] A lifting mechanism is built into bobbin 1. A motor drives a threaded rod, causing bobbin 2 to move up and down along its inner wall, adjusting the yarn height as needed to suit different working conditions. Within the adjustment mechanism, pawl 1 and ratchet 1 work together to change the angle of the guide frame, guiding the yarn and ensuring it follows the intended route, avoiding entanglement.

[0018] The tension mechanism uses components such as springs, connecting rods, cross bars and tension wheels. When the yarn passes around the tension wheel and the tension changes, the change in the elastic force of the spring drives the connecting rod to swing, automatically adjusting the pressure of the tension wheel on the yarn to keep the yarn tension appropriate and prevent breakage or irregular stitches.

[0019] After the yarn is drawn from the reel frame, it is combed through the guide frame's turning hole and then precisely introduced into the sewing machine's thread feeder. Finally, the sewing machine is started according to the programmed program and parameters. The machine head operates, continuously feeding yarn from the combing device and working with the sewing needle and other components to sew the material. The coordinated operation of these various mechanisms effectively solves many of the problems associated with traditional yarn combing and sewing processes, ensuring both processing quality and efficiency.

[0020] The present invention provides a yarn combing device for hemming and sewing processing, which has the following beneficial effects: 1. In this invention, the coordination of the second pawl and the second ratchet wheel, along with the spool frame, enables flexible adjustment of the spool-related structures. The angle of the spool frame can be adjusted according to actual needs, allowing the position of the spool placed on the tray to be adjusted accordingly. This ensures that the yarn is delivered to the sewing machine at a more reasonable angle and path during delivery, effectively reducing yarn entanglement and knotting during delivery. This solves the problem of the spool frame being unable to be adjusted.

[0021] 2. In this invention, the lifting mechanism consisting of a motor, a threaded rod, and a second thread holder enables flexible and precise adjustment of the thread holder's height. During the actual hemming process, the height of the thread holder can be quickly and conveniently adjusted. This adjustment optimizes the angle and path of yarn extraction from the spool, reducing yarn bending and twisting during transport, allowing the yarn to enter the sewing machine more smoothly, improving yarn combing efficiency and sewing stability. This solves the problem of non-adjustable thread holder height.

[0022] 3. The present invention utilizes an adjustment mechanism to flexibly adjust the guide frame angle. This allows the angle of the guide frame to be adjusted based on the desired yarn orientation during the sewing process, thereby adjusting the yarn guidance direction, reducing interference and entanglement between yarns and improving the yarn combing effect. This solves the problem of malfunctions caused by improper yarn guidance.

[0023] 4. In this invention, the tension mechanism automatically adjusts the yarn tension. Regardless of any factors causing yarn tension changes during the sewing process, the tension mechanism responds promptly. This ensures yarn stability during transport, avoiding problems such as yarn breakage due to excessive tension or yarn loosening and tangling due to insufficient tension, thereby ensuring the quality of the hemming process. This solves the problem of yarn breakage caused by difficult-to-control yarn tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front perspective schematic diagram of a yarn combing device for hemming sewing processing proposed by the present invention; Figure 2 This is a partial structural diagram of the workbench of a yarn combing device for hemming sewing proposed by the present invention; Figure 3 This is a partial structural diagram of a sewing machine of a yarn combing device for hemming sewing processing proposed by the present invention; Figure 4 This is a partial structural diagram of a thread frame of a yarn combing device for hemming sewing processing proposed by the present invention; Figure 5 This is a schematic diagram of the partial structure of the tension wheel of a yarn combing device for hemming sewing processing proposed by the present invention; Figure 6 This is a partial structural diagram of a guide frame of a yarn combing device for hemming sewing proposed by the present invention; Figure 7 This is a schematic diagram of a partial structure of a ratchet wheel of a yarn combing device for hemming sewing proposed by the present invention; Figure 8 This is a schematic diagram of the partial structure of the threaded rod of a yarn combing device for hemming sewing processing proposed by the present invention.

[0025] Among them, 1. Workbench; 2. Support legs; 3. Sewing machine; 4. Machine head; 5. Thread feed rack; 6. Base; 7. Thread rack 1; 8. Thread rack 2; 9. Crossbar; 10. Connecting rod; 11. Spring; 12. Guide frame; 13. Steering hole; 14. Tray; 15. Bobbin; 16. Thread feed hole; 17. Fixed block 1; 18. Articulated seat; 19. Fixed block 2; 20. Tension wheel; 21. Thread wheel frame; 22. Fixed ring 1; 23. Fixed ring 2; 24. Ratchet 1; 25. Ratchet 1; 26. Ratchet 2; 27. Ratchet 2; 28. Threaded rod; 29. ​​Motor. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] Please see the attached Figure 1 -Attached Figure 2 , Attachment Figure 4 , Attachment Figure 6 -Attached Figure 8 A yarn combing device for hemming and sewing processing includes a workbench 1, a base 6 is provided on one side of the upper surface of the workbench 1, a thread rack 7 is provided on the upper surface of the base 6, a fixing ring 23 is symmetrically provided in the middle of the outer wall of the thread rack 7, a slide groove is provided inside the fixing ring 23, a rotating shaft 1 is symmetrically slidably connected in the slide groove of the fixing ring 23, a pawl 27 is provided on the outer wall of the rotating shaft 1, a ratchet 26 is provided at one end of the pawl 27, a wire pulley frame 21 is fixedly provided on the outer wall of the thread rack 7, a wire pulley frame 21 is provided on one side of the pawl 27, a plurality of trays 14 are provided on the upper surface of the tray 14, a bobbin 15 is provided on the upper surface of the wire rack 7, and a lifting mechanism is provided inside the thread rack 7.

[0028] Specifically, in the yarn combing device for hemming and sewing, thread rack 1 7 is fixed to one side of the upper surface of workbench 1 via base 6. A second fixing ring 23, symmetrically arranged in the middle of the outer wall of thread rack 1 7 , has a slide groove inside. Rotating shaft 1 is symmetrically slidably connected in the slide groove. A second pawl 27 is mounted on the outer wall of rotating shaft 1. One end of pawl 27 engages with ratchet 26, fixed in the middle of the outer wall of thread rack 1 7 .

[0029] When the thread rack needs to be adjusted, the operator can apply external force to the reel frame 21. Since the reel frame 21 is connected to the rotating shaft 1 on which the pawl 27 is installed, when an external force is applied, the pawl 27 will slide between the teeth of the ratchet 26. When the external force is removed, the pawl 27 will be stuck in the corresponding tooth groove of the ratchet 26, thereby fixing the position of the reel frame 21. In this way, the tray 14 on the reel frame 21 and the bobbin 15 placed on the tray 14 can be adjusted within a certain angle range according to actual sewing needs. When the position or sewing direction of the sewing machine changes, the angle of the reel frame 21 can be adjusted to make the direction of the yarn being drawn out from the bobbin 15 smoother, thereby reducing the bending and friction of the yarn.

[0030] The aforementioned coordination between the second pawl 27 and the second ratchet 26, along with the slidable and adjustable design of the reel frame 21, allows for flexible adjustment of the thread rack's related structures. The angle of the reel frame 21 can be adjusted as needed, allowing the position of the spool 15 placed on the tray 14 to be adjusted accordingly. This ensures that the yarn is delivered to the sewing machine at a more optimal angle and path during delivery, effectively reducing yarn entanglement and knotting during delivery. This solves the problem of the thread rack being unable to adjust.

[0031] Please see the attached Figure 8 The lifting mechanism includes a motor 29, the outer wall of the motor 29 is set at the bottom end of the wire rack 7, the output end of the motor 29 is fixed with a threaded rod 28, the outer wall of the threaded rod 28 is threadedly connected to the wire rack 28, the outer wall of the wire rack 28 is set on the inner wall of the wire rack 7, and the outer wall of the wire rack 7 is provided with an adjustment mechanism.

[0032] Specifically, in the lifting mechanism of the yarn combing device for hemming sewing, a motor 29 is installed at the bottom end of the thread stand 7, and its output end is fixedly connected to the threaded rod 28. When the motor 29 is powered on, the rotation of the motor will drive the threaded rod 28 to rotate synchronously. Because the threaded rod 28 is connected to the thread stand 28 by a thread, according to the principle of thread transmission, as the threaded rod 28 rotates, the thread stand 28 will move up and down within a certain range along the axial direction of the threaded rod 28, and the outer wall of the thread stand 28 cooperates with the inner wall of the thread stand 7 to limit the movement direction of the thread stand 28, so that it can only be raised and lowered in the vertical direction. In this way, the operator can accurately adjust the height position of the thread stand 28 by controlling the rotation direction (forward or reverse) and rotation time of the motor 29.

[0033] The lifting mechanism, comprised of a motor 29, a threaded rod 28, and a thread stand 28, enables flexible and precise adjustment of the height of thread stand 28. During the actual hemming process, thread stand 28's height can be quickly and conveniently adjusted to suit different sewing requirements, using yarn spools of varying thicknesses and winding methods, or to accommodate sewing machine heads of varying heights. This adjustment optimizes the angle and path of yarn extraction from the spool, reducing bending and twisting during yarn transport, allowing the yarn to enter the sewing machine more smoothly, improving yarn combing efficiency and sewing stability. This solves the problem of unadjustable thread stand height.

[0034] Please see the attached Figure 1 -Attached Figure 2 , Attachment Figure 4 , Attachment Figure 6 -Attached Figure 7 The adjustment mechanism includes a ratchet 25, the middle part of the ratchet 25 is fixedly set on the outer wall of the wire rack 2 8, and pawls 24 are set on both sides of the tooth end of the ratchet 25. A rotating shaft 2 is set on one side of the pawl 24, and a fixed ring 22 is slidably connected to the two ends of the rotating shaft 2. The inner wall of the fixed ring 22 is set on the outer wall of the wire rack 2 8, and a guide frame 12 is set at one end of the pawl 24. The outer wall of the guide frame 12 is provided with a plurality of steering holes 13, and the outer wall of the wire rack 2 8 is provided with a tension mechanism.

[0035] Specifically, the adjustment mechanism primarily consists of a ratchet 25, a pawl 24, a second rotating shaft, a fixed ring 22, and a guide frame 12. The ratchet 25 is fixed to the outer wall of the bobbin frame 8. The pawl 24 is slidably connected to the fixed ring 22 via the second rotating shaft, and the fixed ring 22 is sleeved onto the outer wall of the bobbin frame 8. To adjust the angle of the guide frame 12, the operator applies an external force to the guide frame 12, causing it to rotate the pawl 24 about the second rotating shaft. Because the pawl 24 and the ratchet 25 interact, the pawl 24 slides between the teeth of the ratchet 25 during rotation. Once the desired angle is reached, the external force is removed, and the pawl 24 engages the corresponding tooth groove of the ratchet 25, thereby securing the position of the guide frame 12. The yarn is guided through the steering hole 13 in the guide frame 12. As the angle of the guide frame 12 changes, the yarn's direction of guidance also adjusts accordingly.

[0036] The adjustment mechanism allows for flexible adjustment of the angle of the guide frame 12. The angle of the guide frame 12 can be adjusted based on the desired yarn orientation during the sewing process, thereby adjusting the yarn's guiding direction. When the sewing machine's stitch length, sewing path, or yarn quantity changes, the angle of the guide frame 12 can be adjusted to ensure the yarn enters the sewing machine at the most appropriate angle. This ensures the yarn remains organized during the sewing process, reduces interference and entanglement between yarns, and improves the yarn's combing effect. This solves the problem of malfunctions caused by improper yarn guidance.

[0037] Please see the attached Figure 1 -Attached Figure 2 , Attachment Figure 4 -Attached Figure 5 The tension mechanism includes an articulated seat 18, one end of the articulated seat 18 is arranged on the outer wall of the wire rack 2 8, the other end of the articulated seat 18 is provided with a connecting rod 10, the outer wall of the connecting rod 10 is provided with a spring 11, one end of the spring 11 is provided with a fixed block 17, the bottom end of the fixed block 17 is provided at the top of the wire rack 2 8, the top of the connecting rod 10 is provided with a cross bar 9, the bottom end of the cross bar 9 is provided with several fixed blocks 2 19, the side wall of the fixed block 2 19 is rotatably connected with a rotating shaft 3, and the outer wall of the rotating shaft 3 is provided with a tension wheel 20.

[0038] Specifically, the tension mechanism is composed of components such as an articulated seat 18, a connecting rod 10, a spring 11, a fixed block 17, a crossbar 9, a fixed block 2 19, a rotating shaft 3, and a tension pulley 20. One end of the articulated seat 18 is connected to the outer wall of the wire frame 2 8, and the other end is connected to the connecting rod 10, allowing the connecting rod 10 to swing with the articulated seat 18 as a fulcrum. One end of the spring 11 is connected to the outer wall of the connecting rod 10, and the other end is connected to the fixed block 17, which is fixed to the top of the wire frame 2 8. The crossbar 9 is mounted on the top of the connecting rod 10, and several fixed blocks 2 19 are set at the bottom of the crossbar 9. The fixed blocks 2 19 are connected to the tension pulley 20 via the rotating shaft 3.

[0039] As the yarn passes around the tension wheel 20, the yarn tension exerts a force on it, causing the crossbar 9 and connecting rod 10 to swing slightly. If the yarn tension increases, it pulls on the tension wheel 20, causing the connecting rod 10 to swing upward, overcoming the elastic force of the spring 11. If the yarn tension decreases, the elastic force of the spring 11 pushes the connecting rod 10 downward, causing the tension wheel 20 to return to its original position. Dynamic adjustment of the yarn tension is achieved through the elastic deformation and restoring force of the spring 11, combined with the swinging motion of the connecting rod 10.

[0040] The aforementioned tension mechanism's operating principle enables automatic adjustment of yarn tension. Regardless of any changes in yarn tension during the sewing process (such as changing the yarn spool or changing the sewing speed), the tension mechanism responds promptly. The coordinated action of components such as spring 11 and connecting rod 10 ensures that yarn tension remains within a relatively stable range. This ensures yarn stability during transport, preventing problems such as yarn breakage due to excessive tension or yarn loosening and tangling due to insufficient tension, thereby ensuring the quality of the hemming process. This solves the problem of thread breakage caused by difficult-to-control yarn tension.

[0041] Please see the attached Figure 1 -Attached Figure 3A sewing machine 3 is provided on the other side of the upper surface of the workbench 1, a machine head 4 is provided on one side of the sewing machine 3, a wire feed rack 5 is provided on the upper surface of the sewing machine 3, and a plurality of wire feed holes 16 are provided on the outer wall of the wire feed rack 5. Support legs 2 are symmetrically provided on the lower surface of the workbench 1.

[0042] Specifically, a workbench 1 serves as the support base for the entire device. The symmetrically arranged legs 2 on its lower surface ensure stable positioning on the work surface, ensuring the stability of the entire device during operation. Components related to yarn combing are arranged on one side of the upper surface of the workbench 1, while a sewing machine 3 is located on the other side. A machine head 4 is located on one side of the sewing machine 3. This is the key component for performing the sewing operation. Its internal mechanical structure drives the sewing needle in corresponding movements, such as up and down, to sew fabric and other materials.

[0043] The upper surface of the sewing machine 3 is provided with a thread feeder 5, and the outer wall of the thread feeder 5 is provided with a plurality of thread feed holes 16. After the yarn is drawn out from the yarn combing device, it will be sequentially passed through the corresponding thread feed holes 16 on the thread feeder 5. The thread feed holes 16 play a role in guiding and positioning the yarn, so that the yarn can accurately enter the machine head 4 along the predetermined path to participate in the sewing work, ensuring that the yarn can accurately cooperate with the movement of the sewing needle during sewing, completing the corresponding sewing process such as hemming sewing.

[0044] By placing the sewing machine 3 on one side of the upper surface of the workbench 1 and equipping it with a wire feed rack 5 with a wire feed hole 16, the orderly guidance and accurate delivery of the yarn to the sewing machine are achieved. On the one hand, it ensures that the yarn can enter the machine head 4 at a suitable position and angle, avoiding deviation, entanglement, etc. of the yarn during entry into the sewing machine, so that the sewing needle can smoothly hook the yarn for sewing, thereby ensuring the regularity and accuracy of the sewing stitches. On the other hand, the workbench 1 is stably placed on the legs 2, so that the entire sewing operation process can be carried out smoothly, and the sewing quality will not be affected by factors such as shaking of the device, thereby improving the quality and stability of the hemming sewing process as a whole. It solves the problem of inaccurate positioning of the yarn when entering the sewing machine.

[0045] Please see the attached Figure 1 -Attached Figure 8 A method for using a yarn combing device for hemming and sewing processing, which is used for a yarn combing device for hemming and sewing processing, comprises the following steps: S1. Install the yarn: Place the device on a stable work surface, place the spool 15 on the upper surface of the tray 14, the tray 14 is located on the reel frame 21, and the yarn is drawn out; S2. Adjust the height of the wire rack: Start the motor 29, which drives the threaded rod 28 to rotate, so that the wire rack 2 8 threadedly connected to the threaded rod 28 moves up and down along the inner wall of the wire rack 1 7 to adjust the height of the wire rack 2 8; S3. Tension adjustment: The spring 11 applies elastic force to the connecting rod 10, which is transmitted through the connecting rod 10 and the cross bar 9, so that the tension wheel 20 on the fixed block 2 19 produces appropriate pressure on the yarn, adjusts the yarn tension, and allows the yarn to pass between the tension wheels 20 to ensure that the yarn tension is appropriate; S4, yarn guiding: After the yarn is led out from the reel frame 21, it passes through the turning hole 13 on the guide frame 12 and guides the yarn along the predetermined route; S5, yarn introduction machine: the combed and tension-adjusted yarn is passed through the feed hole 16 of the feed rack 5 and introduced into the head 4 of the sewing machine 3; S6. Start sewing: operate the sewing machine 3 and use the machine head 4 to sew the material according to the set program and parameters. During this period, the yarn is continuously transported from the carding device to participate in the sewing work.

[0046] Specifically, the entire yarn combing device for hemming and sewing is first placed stably on the work site, and the legs 2 symmetrically arranged on the lower surface of the workbench 1 are used to ensure that the entire device is in a stable state, providing a solid foundation for subsequent operations. The bobbin 15 is placed on the tray 14, and the tray 14 is fixed on the reel frame 21. Since the reel frame 21 is connected to the reel frame 1 7 through the rotating shaft 1, the ratchet 2 27 and the ratchet 2 26 on one side thereof, the reel frame 21 can rotate within a certain range. In this way, when the yarn is drawn out from the bobbin 15, the reel frame 21 can adaptively make small angle adjustments according to the initial tension of the yarn drawing, etc., to ensure that the yarn can be drawn out relatively smoothly.

[0047] Motor 29 is mounted at the bottom of bobbin 1 (7), with its output end fixedly connected to threaded rod 28. When motor 29 is started, motor 29 drives threaded rod 28 to rotate in the set direction. The outer wall of bobbin 2 (8) is set on the inner wall of bobbin 1 (7), and bobbin 2 (8) and threaded rod 28 are connected by a threaded connection. According to the principle of thread transmission, when threaded rod 28 rotates, bobbin 2 (8) moves up and down along the inner wall of bobbin 1 (7). By controlling the forward and reverse rotation of motor 29, the height of bobbin 2 (8) can be raised or lowered as needed to meet the yarn delivery height requirements for different yarn rolls and different sewing process requirements.

[0048] One end of the spring 11 is connected to the outer wall of the connecting rod 10, and the other end is connected to the fixed block 17 (the bottom end of the fixed block 17 is fixed to the top of the wire frame 2 8). The connecting rod 10 uses the hinge seat 18 as a fulcrum (one end of the hinge seat 18 is connected to the outer wall of the wire frame 2 8) to swing within a certain range. When the yarn passes around the side wall of the fixed block 2 19 and is connected to the tension wheel 20 via the rotating shaft 3, the yarn's own tension will exert a force on the tension wheel 20. If the yarn tension increases, it will pull the tension wheel 20, causing the connecting rod 10 to swing upward, overcoming the elastic force of the spring 11, thereby providing a certain degree of buffering for the yarn tension. If the yarn tension decreases, the elastic force of the spring 11 will push the connecting rod 10 downward, causing the tension wheel 20 to return to its original position, thereby applying appropriate pressure to the yarn. The elastic deformation and restoring force of the spring 11 dynamically adjust the yarn tension to keep it within an appropriate range.

[0049] The guide frame 12 is connected to the outer wall of the bobbin frame 2 8 via an adjustment mechanism consisting of a pawl 1 24 and a ratchet 1 25. The pawl 1 24 can rotate around the rotating shaft 2 (the ends of the rotating shaft 2 are slidably connected to the fixing ring 1 22, which is mounted on the outer wall of the bobbin frame 2 8). When an external force is applied to the guide frame 12 to change its angle, the pawl 1 24 slides between the teeth of the ratchet 1 25. After adjusting to the appropriate angle, the external force is removed, and the pawl 1 24 snaps into the corresponding tooth groove of the ratchet 1 25, fixing the guide frame 12 in place. After the yarn is drawn from the bobbin frame 21, it passes through the steering hole 13 on the guide frame 12. Utilizing the limiting and guiding functions of the steering hole 13, combined with the adjustable angle of the guide frame 12, the yarn is guided along a route pre-set according to sewing requirements, ensuring that the yarn is fed in an orderly manner toward the sewing machine.

[0050] The thread feeder 5 is mounted on the upper surface of the sewing machine 3 and has a plurality of thread feed holes 16 on its outer wall. After being combed, tension-adjusted, and guided, the yarn passes sequentially through the corresponding thread feed holes 16 on the thread feeder 5. The thread feed holes 16 position and further guide the yarn, allowing it to enter the head 4 of the sewing machine 3 at the correct position and angle, ensuring that the yarn can accurately cooperate with the sewing needle and other working parts of the sewing machine and participate in the sewing work.

[0051] The operator starts the sewing machine 3 according to the pre-set sewing program (such as stitch length, sewing speed, sewing style and other parameters) by operating the relevant control buttons, knobs and other components of the sewing machine 3. The internal mechanical structure of the head 4 of the sewing machine 3 starts to operate, driving the sewing needle to make corresponding movements such as up and down. At this time, the yarn continuously fed from the yarn combing device and properly combed and guided is accurately hooked by the sewing needle at the head 4 and combined with the sewing material such as cloth. The material is sewn and hemmed according to the set program and parameters to complete the sewing process.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A yarn combing device for hemming sewing, comprising a workbench (1), characterized in that: A base (6) is provided on one side of the upper surface of the workbench (1), a wire rack (7) is provided on the upper surface of the base (6), a fixed ring (23) is symmetrically provided on the middle part of the outer wall of the wire rack (7), a slide groove is provided inside the fixed ring (23), a rotating shaft (1) is symmetrically slidably connected in the slide groove of the fixed ring (23), a pawl (27) is provided on the outer wall of the rotating shaft (1), a ratchet (26) is provided at one end of the pawl (27), a wire wheel frame (21) is fixedly provided on the outer wall of the wire rack (7), a wire reel frame (21) is provided on one side of the pawl (27), a plurality of trays (14) are provided on the upper surface of the tray (14), a wire spool (15) is provided on the upper surface of the wire rack (7), and a lifting mechanism is provided inside the wire rack (7).

2. A yarn combing device for hemming sewing according to claim 1, characterized in that: The lifting mechanism includes a motor (29), the outer wall of the motor (29) is arranged at the bottom end of the wire rack 1 (7), the output end of the motor (29) is fixedly provided with a threaded rod (28), the outer wall of the threaded rod (28) is threadedly connected to the wire rack 2 (8), the outer wall of the wire rack 2 (8) is arranged on the inner wall of the wire rack 1 (7), and the outer wall of the wire rack 1 (7) is provided with an adjustment mechanism.

3. A yarn combing device for hemming sewing according to claim 2, characterized in that: The adjustment mechanism includes a ratchet wheel (25), the middle portion of which is fixedly arranged on the outer wall of the wire rack (8), and ratchet pawls (24) are arranged on both sides of the tooth ends of the ratchet wheel (25).

4. A yarn combing device for hemming sewing according to claim 3, characterized in that: A rotating shaft 2 is provided on one side of the ratchet 1 (24), and both ends of the rotating shaft 2 are slidably connected to a fixing ring 1 (22), and the inner wall of the fixing ring 1 (22) is provided on the outer wall of the wire rack 2 (8).

5. The yarn combing device for hemming sewing according to claim 3, characterized in that: A guide frame (12) is provided at one end of the first pawl (24), a plurality of steering holes (13) are provided on the outer wall of the guide frame (12), and a tension mechanism is provided on the outer wall of the second wire frame (8).

6. The yarn combing device for hemming sewing according to claim 5, characterized in that: The tension mechanism includes an articulated seat (18), one end of the articulated seat (18) is arranged on the outer wall of the wire rack 2 (8), the other end of the articulated seat (18) is provided with a connecting rod (10), and the outer wall of the connecting rod (10) is provided with a spring (11).

7. A yarn combing device for hemming sewing according to claim 6, characterized in that: One end of the spring (11) is provided with a fixing block 1 (17), the bottom end of the fixing block 1 (17) is provided at the top end of the wire rack 2 (8), and the top end of the connecting rod (10) is provided with a cross bar (9).

8. The yarn combing device for hemming sewing according to claim 7, characterized in that: A plurality of fixed blocks 2 (19) are provided at the bottom end of the crossbar (9), and the side walls of the fixed blocks 2 (19) are rotatably connected to a rotating shaft 3, and the outer wall of the rotating shaft 3 is provided with a tension wheel (20).

9. The yarn combing device for hemming sewing according to claim 1, characterized in that: A sewing machine (3) is provided on the other side of the upper surface of the workbench (1), a machine head (4) is provided on one side of the sewing machine (3), a wire feed rack (5) is provided on the upper surface of the sewing machine (3), a plurality of wire feed holes (16) are provided on the outer wall of the wire feed rack (5), and legs (2) are symmetrically provided on the lower surface of the workbench (1).

10. A method for using a yarn combing device for hemming sewing, characterized in that: A yarn combing device for hemming sewing according to any one of claims 1 to 9 comprises the following steps: S1. Installing the yarn: placing the device on a stable working area, placing the bobbin (15) on the upper surface of the tray (14), the tray (14) being located above the reel frame (21), and leading out the yarn; S2. Adjusting the height of the wire rack: starting the motor (29), the motor (29) drives the threaded rod (28) to rotate, so that the wire rack 2 (8) threadedly connected to the threaded rod (28) moves up and down along the inner wall of the wire rack 1 (7), thereby adjusting the height of the wire rack 2 (8); S3, tension adjustment: the spring (11) applies elastic force to the connecting rod (10), which is transmitted through the connecting rod (10) and the cross bar (9), so that the tension wheel (20) on the fixed block (19) produces appropriate pressure on the yarn, adjusts the yarn tension, and allows the yarn to pass between the tension wheels (20) to ensure that the yarn tension is appropriate; S4, yarn guiding: after the yarn is drawn out from the reel frame (21), it passes through the turning hole (13) on the guide frame (12) and guides the yarn along a predetermined route; S5, yarn introduction machine: the yarn that has been combed and tension-adjusted is passed through the thread feed hole (16) of the thread feed frame (5) and introduced into the head (4) of the sewing machine (3); S6. Start sewing: operate the sewing machine (3) and use the machine head (4) to sew the material according to the set program and parameters. During this period, the yarn is continuously transported from the carding device to participate in the sewing work.

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