Automatic synchronous compensation device for thread feeding required amount of rotating shuttle
By using the automatic synchronous compensation device for the amount of thread required for the rotary hook thread feed, the amount of thread in the sewing equipment can be flexibly adjusted, which solves the problems of high equipment upgrade costs and low production efficiency, and improves the adaptability and production efficiency of the equipment.
Patent Information
- Application Number
- CN202520053243.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing sewing equipment cannot flexibly adjust the amount of thread, resulting in high equipment upgrade costs and long cycles, making it unable to adapt to market changes and leading to low production efficiency.
The automatic synchronous compensation device for the amount of thread required by the rotary hook is adopted. Through the drive component connected to the rotating shaft by the movable thread guide plate, the amount of thread can be adjusted in real time. The up and down floating of the thread guide plate is adjusted synchronously by the motor signal to adapt to the changes in the amount of thread required by the rotary hook.
Without changing the internal parts of the equipment, it reduces equipment upgrade costs, improves production efficiency and flexibility, adapts to market changes, and simplifies line adjustment operations.
Smart Images

Figure CN223866943U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sewing technical field especially relates to a thread feeding line need line amount automatic synchronous compensation device of shuttle. BACKGROUND
[0002] In the existing market, the thread feeding amount of all embroidery machines is determined according to the size of the original shuttle through the action of cam and thread tension lever and other accessories, and the thread amount of each machine is fixed. The parts for adjusting the thread amount are internal parts. If subsequent equipment needs to be optimized and upgraded, it is very cumbersome to replace the cam and connecting rod and other related accessories for adjusting the thread amount in the entire equipment. The same equipment can only use a shuttle with the same size as the shuttle size. It cannot be flexibly and efficiently optimized and upgraded, cannot quickly adapt to the product update on the market, cannot timely replace the new large-capacity shuttle on the market to the existing equipment, cannot timely and effectively improve the production efficiency, and cannot adapt to market changes, which will face the problems of high equipment cost and long cycle.
[0003] For example, the publication number "CN117488487A" discloses a "comprehensive feeding sewing machine", which includes a machine shell, a needle bar, a thread tension lever, a sewing upper main shaft, a presser foot assembly, a transmission mechanism, a presser foot drive main shaft, a needle plate, a shuttle assembly, a sewing lower main shaft, and a drive mechanism. However, in actual application, it cannot be flexibly adjusted according to the change of thread amount, and parts need to be replaced, which is high in cost and complicated in operation. SUMMARY
[0004] In view of the problem of the existing technology that cannot adaptively adjust the thread amount mentioned in the background art, the utility model provides a thread feeding line need line amount automatic synchronous compensation device of shuttle, which can adaptively adjust the thread amount without changing the internal parts of the equipment, reduce the cost of upgrading the equipment, make the processing and production more flexible, and improve the production efficiency.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions.
[0006] The application discloses a thread feeding and compensating device for a rotary hook, which comprises an outer panel, a thread passing assembly connected to the outer panel, a mounting base fixedly connected to the outer panel, a movable thread passing plate rotatably connected to the mounting base, a face thread wound around the movable thread passing plate, a rotating shaft connected to the movable thread passing plate, and a driving member connected to the rotating shaft to drive the rotating shaft and the movable thread passing plate to rotate.
[0007] Therefore, in the application, the thread passing assembly is arranged in a mode that the mounting base is movably connected to the movable thread passing plate. Specifically, the bottom of the movable thread passing plate is connected to the rotating shaft, the rotating shaft is connected to the driving member to drive the rotating shaft to rotate, and the movable thread passing plate is synchronously driven to rotate when the rotating shaft rotates. Since the movable thread passing plate is in a plate-shaped structure, the plate surface is inclined after the movable thread passing plate rotates, so that the tension of the face thread connected to the movable thread passing plate and the thread passing amount are adjusted. Since the driving member is connected, the driving member can be used to compensate and adjust the thread passing amount in real time during work. The driving member is preferably a motor, and the swing signal of the motor is synchronized with the thread feeding amount and thread changing signal of the embroidery machine, so that the movable thread passing plate is synchronously floated up and down when the thread feeding amount of the rotary hook changes, and the movable thread passing plate is swung up when the thread feeding amount of the product is large, so that the face thread is shortened and the shortened face thread is transferred to the rotary hook, thereby compensating for the large thread feeding amount of the rotary hook.
[0008] Preferably, the bottom of the movable thread passing plate is connected to the rotating shaft, and the movable thread passing plate comprises an auxiliary thread passing hole arranged on the side away from the rotating shaft. The bottom of the movable thread passing plate is connected to the rotating shaft, and the auxiliary thread passing hole is arranged on the other side of the movable thread passing plate, i.e. the side away from the rotating shaft. The auxiliary thread passing hole can pass the face thread, so that the face thread is synchronously pulled tight after the movable thread passing plate rotates in the subsequent work process, thereby adjusting the thread passing amount.
[0009] As preferred, the movable guiding hole is a wide hole. The movable guiding hole is provided on the movable thread passing plate, and the face thread is guided through the movable guiding hole. Since the movable guiding hole is a wide hole, the face thread is not tightly interfered by the movable guiding hole during the up-and-down swinging of the movable thread passing plate, so that the face thread can be adjusted only through the auxiliary thread passing hole during the movement of the movable thread passing plate, and the adjustment amount can be more accurately controlled.
[0010] As preferred, the movable guiding hole is arranged in a staggered manner with the auxiliary thread passing hole. The movable guiding hole and the auxiliary thread passing hole are arranged in a staggered manner, so that the face thread is not interfered by the auxiliary thread passing hole and the movable guiding hole when passing through the auxiliary thread passing hole and the movable guiding hole, and the thread path is clear and convenient for the staff to thread.
[0011] As preferred, the movable thread passing plate is provided with a plurality of thread passing units, and each thread passing unit is provided with an auxiliary thread passing hole through which the face thread can pass. The thread passing units are provided on the movable thread passing plate for the face thread to pass through, and the auxiliary thread passing hole is arranged on the thread passing unit, so that the staff can conveniently thread.
[0012] As preferred, the thread passing unit is a vertical plate arranged on the movable thread passing plate, the vertical plate extends away from the rotating shaft, and the auxiliary thread passing hole is arranged on the vertical plate. In the present application, the thread passing unit is arranged in a vertical plate structure, so that the auxiliary thread passing hole is arranged on the vertical plate, the face thread passing is more suitable for the extension direction of the face thread, and since the auxiliary thread passing hole is arranged on the vertical plate, the swinging axis is parallel to the axis of the auxiliary thread passing hole during the up-and-down swinging of the movable thread passing plate, that is, the axis of the rotating shaft is parallel to the axis of the auxiliary thread passing hole, so that the connection mode of the auxiliary thread passing hole and the face thread connection is always kept unchanged during the swinging of the movable thread passing plate, and there is no large interference.
[0013] As preferred, the mounting seat is provided with a through hole, and the rotating shaft passes through the through hole to be connected with the movable thread passing plate. The through hole is arranged on the mounting seat, the rotating shaft passes through the through hole to be connected with the movable thread passing plate, so that the rotating shaft can be supported and fixed, the stability of the rotating axis is ensured, and the adjustment accuracy of the face thread adjustment amount is improved.
[0014] As preferred, the bottom of the outer panel is provided with a bottom guiding plate, and the bottom guiding plate is provided with a face thread passing bottom guiding hole. The bottom guiding plate arranged at the bottom of the outer panel can further guide the face thread, and the position of the face thread is guided and stabilized by passing through the bottom guiding hole.
[0015] As preferred, the bottom of the outer panel is provided with a face thread passing needle, and the face thread passing needle is provided with the face thread.
[0016] As preferred, the upper movable part of the outer panel is provided with a thread lifting rod, and the thread lifting rod is provided with a thread lifting hole through which the thread passes.
[0017] The utility model has the advantages that:
[0018] (1) The thread amount can be adjusted adaptively without changing the internal parts of the equipment, the cost of upgrading the equipment is reduced, the processing and production are more flexible, and the production efficiency is improved.
[0019] (2) The threading work of the thread is facilitated, the wiring clarity of the thread is ensured, the observation and judgment of the staff are facilitated, and the stability of the thread during the adjustment is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is a structural schematic diagram of the utility model.
[0021] Figure 2 is a structural schematic diagram of the prior art.
[0022] Figure 3 is a partial axonometric view of embodiment 2.
[0023] Figure 4 is a partial axonometric view of embodiment 3.
[0024] Figure 5 is an axonometric view of embodiment 3.
[0025] In the drawings:
[0026] 1 outer panel;
[0027] 2 threading assembly, 21 mounting seat, 22 movable threading plate, 221 auxiliary threading hole, 222 movable guide hole, 223 threading unit, 224 vertical plate, 225 perforation, 23 rotating shaft, 24 driving piece;
[0028] 3 thread;
[0029] 4 bottom guide plate, 41 bottom guide hole;
[0030] 5 thread threading needle;
[0031] 6 thread lifting rod, 61 thread lifting hole. DETAILED DESCRIPTION
[0032] The utility model will be further described in combination with the drawings and specific embodiments.
[0033] Embodiment 1:
[0034] In the existing market, the thread feeding amount of all embroidery machine equipment is determined according to the size of the original shuttle, through the action of cam and thread tension lever 6 and other accessories, and the thread amount of each machine is fixed. The parts for adjusting the thread amount are internal parts. If subsequent equipment needs to be optimized and upgraded, it is very cumbersome to replace the related accessories such as cam and connecting rod for adjusting the thread amount in more than 100 heads. The same equipment can only use shuttles with the same size, cannot be optimized and upgraded efficiently, cannot quickly adapt to the update of products in the market, cannot replace the new large-capacity shuttle on the market to the existing equipment in time, cannot effectively improve the production efficiency in time, cannot adapt to market changes, and makes enterprises in a passive state in market competition. Will face the cost of equipment modification, long cycle, if not modify the equipment, the market competition is fierce, lose the core competitiveness in the market, be eliminated by the market.
[0035] As shown in Figure 1 , 2 A kind of thread feeding amount automatic synchronous compensation device of shuttle, including outer panel 1, overline assembly 2 is connected on outer panel 1, overline assembly 2 includes the mounting seat 21 of being fixedly connected with outer panel 1, overline assembly 2 includes the movable overline plate 22 of being rotatably connected mounting seat 21, face line 3 is wound on movable overline plate 22, movable overline plate 22 is connected with rotating shaft 23, rotating shaft 23 is connected with driving part 24, driving part 24 drives rotating shaft 23 and drives movable overline plate 22 to rotate.In the prior art, overline assembly 2 is generally directly fixedly installed on the upper surface of outer panel 1, each small hole capable of passing through face line 3 is provided on overline assembly 2 to pass through face line 3, and since overline assembly 2 is fixedly connected with outer panel 1, the position of overline assembly 2 and its associated parts cannot be easily adjusted. Each time the thread amount is adjusted, the corresponding adjustment operation of each associated part is needed to ensure that the adjustment amount of face line 3 reaches the appropriate working condition.
[0036] Therefore, in the present application, the overline assembly 2 is arranged in a manner that the mounting seat 21 is movably connected with the movable overline plate 22. Specifically, the bottom of the movable overline plate 22 is connected with the rotating shaft 23, and the rotating shaft 23 is connected with the driving member 24, so that the rotating shaft 23 can be driven to rotate, and when the rotating shaft 23 rotates, the movable overline plate 22 can be synchronously driven to rotate. Since the movable overline plate 22 has a plate-shaped structure, when the movable overline plate 22 rotates, the plate surface will be inclined, so that the tension of the face thread 3 connected with the movable overline plate 22 can be adjusted, and the overline amount can be adjusted. Since the driving member 24 is connected, the overline amount can be compensated and adjusted in real time during the operation through the real-time action of the driving member 24. The driving member 24 is preferably a motor, and the swing signal of the motor is synchronized with the thread feeding amount and thread changing signal of the embroidery machine itself, so that when the thread feeding amount of the rotating shuttle changes, the movable overline plate 22 can be simultaneously floated up and down, so that when the thread feeding amount of the product is large, the movable overline plate 22 swings upward, the amount of the face thread 3 in the middle is reduced, and the reduced part of the face thread 3 is transferred to the rotating shuttle, so as to compensate for the large thread feeding amount of the rotating shuttle.
[0037] Embodiment 2:
[0038] As shown in Figure 1 , 2 , the overline amount automatic synchronous compensation device of the rotating shuttle in the present embodiment includes an outer panel 1, the overline assembly 2 is connected with the outer panel 1, the overline assembly 2 includes a mounting seat 21 fixedly connected with the outer panel 1, the overline assembly 2 includes a movable overline plate 22 rotatably connected with the mounting seat 21, the face thread 3 is wound on the movable overline plate 22, the movable overline plate 22 is connected with the rotating shaft 23, the rotating shaft 23 is connected with the driving member 24, and the driving member 24 drives the rotating shaft 23 to drive the movable overline plate 22 to rotate. In the prior art, the overline assembly 2 is directly fixedly installed on the outer panel 1, the overline assembly 2 is provided with a plurality of small holes through which the face thread 3 can pass, and since the overline assembly 2 is fixedly connected with the outer panel 1, the position of the overline assembly 2 and the associated parts cannot be easily adjusted, and each time the thread amount is adjusted, the corresponding adjustment operation of the associated parts is required, so that the adjustment amount of the face thread 3 can reach the appropriate working condition.
[0039] Therefore in the present application, the overline assembly 2 is arranged in a manner that the mounting base 21 is movably connected with the movable overline plate 22. Specifically, the bottom of the movable overline plate 22 is connected with the rotating shaft 23, and the rotating shaft 23 is connected with the driving member 24, so that the rotating shaft 23 can be driven to rotate, and when the rotating shaft 23 rotates, the movable overline plate 22 can be synchronously driven to rotate. Since the movable overline plate 22 is in a plate-shaped structure, when the movable overline plate 22 rotates, the plate surface will be inclined, so that the tension of the surface thread 3 connected with the movable overline plate 22 can be adjusted, and the overline amount can be adjusted. Since the driving member 24 is connected, the overline amount can be compensated and adjusted in real time during the operation by the real-time action of the driving member 24. The driving member 24 is preferably an electric motor, and the swing signal of the electric motor is synchronized with the thread feeding amount and thread changing signal of the embroidery machine itself, so that when the thread feeding amount of the rotating shuttle changes, the movable overline plate 22 can be synchronously floated up and down, so that when the thread feeding amount of the product is large, the movable overline plate 22 swings upward, the surface thread 3 in the middle is reduced in amount, the shortened surface thread 3 is transferred to the rotating shuttle, so as to compensate for the large thread feeding amount of the rotating shuttle.
[0040] As shown in Figure 3 , the bottom of the movable overline plate 22 is connected with the rotating shaft 23, and the movable overline plate 22 includes an auxiliary overline hole 221 arranged on the side away from the rotating shaft 23. The bottom of the movable overline plate 22 is connected with the rotating shaft 23, and the other side of the movable overline plate 22, i.e. the side away from the rotating shaft 23, is provided with an auxiliary overline hole 221. The auxiliary overline hole 221 can pass through the surface thread 3, so that in the subsequent operation process, when the movable overline plate 22 rotates, the surface thread 3 will be synchronously pulled tight, so as to adjust the overline amount.
[0041] As shown in Figure 3 , the movable overline plate 22 is provided with a movable guide hole 222, and the movable guide hole is a wide hole. The movable guide hole 222 is arranged on the movable overline plate 22, and the surface thread 3 is guided through the movable guide hole 222. Since the movable guide hole 222 is arranged as a wide hole, the surface thread 3 will not be pulled tight and interfered by the movable guide hole during the up-and-down swinging of the movable overline plate 22, so that the adjustment of the surface thread 3 can be ensured to be only relied on the auxiliary overline hole 221 during the action of the movable overline plate 22, so that the adjustment amount can be more accurately controlled.
[0042] As shown in Figure 3 , the movable guide hole and the auxiliary overline hole 221 are arranged in a staggered manner. The movable guide hole and the auxiliary overline hole 221 are arranged in a staggered manner, so as to avoid the situation that the surface thread 3 is tangled when passing through the auxiliary overline hole 221 and the movable guide hole, so that the line is more clear and explicit, and the threading work of the staff is more convenient.
[0043] AsFigure 3 As shown, the mounting seat 21 is provided with a through hole 225, and the rotating shaft 23 is connected with the movable thread passing plate 22 through the through hole 225. The through hole 225 is arranged on the mounting seat 21, and the rotating shaft 23 is connected with the movable thread passing plate 22 through the through hole 225, so that the rotating shaft 23 can be supported and fixed, the stability of the rotating axis is guaranteed, and the adjustment accuracy of the adjustment amount of the face thread 3 can be improved.
[0044] Embodiment 3:
[0045] As shown in the drawings, Figure 1 , 2 In this embodiment, the thread feeding and compensating device of the shuttle includes an outer panel 1, a thread passing assembly 2 connected to the outer panel 1, a mounting seat 21 fixedly connected to the outer panel 1, a movable thread passing plate 22 rotatably connected to the mounting seat 21, a face thread 3 wound on the movable thread passing plate 22, a rotating shaft 23 connected to the movable thread passing plate 22, and a driving member 24 connected to the rotating shaft 23. The driving member 24 drives the rotating shaft 23 to rotate the movable thread passing plate 22. In this prior art, the thread passing assembly 2 is usually directly fixedly installed on the outer panel 1, and the thread passing assembly 2 is provided with a plurality of small holes through which the face thread 3 passes. Since the thread passing assembly 2 is fixedly connected to the outer panel 1, the position of the thread passing assembly 2 and its associated parts cannot be easily adjusted, and each time the thread amount is adjusted, the corresponding adjustment operation of each associated part is required, so that the adjustment amount of the face thread 3 can reach the appropriate working condition.
[0046] Therefore, in this application, the thread passing assembly 2 is arranged in a manner that the mounting seat 21 is movably connected to the movable thread passing plate 22. Specifically, the bottom of the movable thread passing plate 22 is connected to the rotating shaft 23, and the rotating shaft 23 is connected to the driving member 24 to drive the rotating shaft 23 to rotate. When the rotating shaft 23 rotates, the movable thread passing plate 22 is synchronously rotated. Since the movable thread passing plate 22 has a plate-shaped structure, when the movable thread passing plate 22 rotates, the plate surface will be inclined, so that the tension of the face thread 3 connected to the movable thread passing plate 22 can be adjusted, and the thread passing amount can be adjusted. Since the driving member 24 is connected, the driving member 24 can compensate and adjust the thread passing amount in real time during the operation. The driving member 24 is preferably an electric motor. The swing signal of the electric motor is synchronized with the thread feeding amount and thread changing signal of the embroidery machine itself, so that when the thread feeding amount of the device changes, the movable thread passing plate 22 simultaneously floats up and down, so that when the thread feeding amount of the product is large, the movable thread passing plate 22 swings upward, the amount of the face thread 3 in the middle is reduced, and the shortened part of the face thread 3 is transferred to the shuttle, so as to compensate for the large thread feeding amount of the shuttle.
[0047] As shown in the drawings, Figure 3As shown, the bottom of the movable thread passing plate 22 is connected to the rotating shaft 23, and the movable thread passing plate 22 includes an auxiliary thread passing hole 221 arranged on the side away from the rotating shaft 23. The bottom of the movable thread passing plate 22 is connected to the rotating shaft 23, and the auxiliary thread passing hole 221 is arranged on the other side of the movable thread passing plate 22, i.e. on the side of the movable thread passing plate 22 away from the rotating shaft 23, and the auxiliary thread passing hole 221 can pass the face thread 3, so that in the subsequent operation process, the face thread 3 is pulled tight synchronously after the movable thread passing plate 22 rotates, thereby adjusting the thread passing amount.
[0048] As shown in the drawings, Figure 3 The movable thread passing plate 22 is provided with a movable guide hole 222, which is a wide hole. The movable guide hole 222 is arranged on the movable thread passing plate 22 to guide the face thread 3, and since the movable guide hole 222 is arranged as a wide hole, the face thread 3 will not be pulled tight and interfered by the movable guide hole during the up-and-down swinging of the movable thread passing plate 22, thereby ensuring that the adjustment of the face thread 3 can only rely on the auxiliary thread passing hole 221 during the movement of the movable thread passing plate 22, thereby being able to more accurately control the adjustment amount.
[0049] As shown in the drawings, Figure 3 The movable guide hole and the auxiliary thread passing hole 221 are arranged in a staggered manner. The movable guide plate and the auxiliary thread passing hole 221 are arranged in a staggered manner, thereby avoiding the situation that the face thread 3 is tangled when passing through the auxiliary thread passing hole 221 and the movable guide hole, making the line clearer and more convenient for the staff to thread.
[0050] As shown in the drawings, Figure 3 The movable thread passing plate 22 is provided with a plurality of thread passing units 223, and each thread passing unit 223 is provided with an auxiliary thread passing hole 221 capable of passing the face thread 3. The thread passing units 223 are arranged on the movable thread passing plate 22 for the face thread 3 to pass through, and the auxiliary thread passing hole 221 is arranged on the thread passing unit 223, which can more conveniently thread the staff.
[0051] As shown in the drawings, Figure 4As shown, the overline unit 223 is a vertical plate 224 arranged on the movable overline plate 22, the vertical plate 224 extends away from the side of the rotating shaft 23, and the auxiliary overline hole 221 is arranged on the vertical plate 224. In this application, the overline unit 223 is arranged as a vertical plate 224 structure, and the auxiliary overline hole 221 is arranged on the vertical plate 224, which can make the passing of the face thread 3 more suitable for the extension direction of the face thread 3. Since the auxiliary overline hole 221 is arranged on the vertical plate 224, the swing axis is parallel to the axis of the auxiliary overline hole 221 during the up-down swing of the movable overline plate 22, that is, the axis of the rotating shaft 23 is parallel to the axis of the auxiliary overline hole 221, so that the connection mode of the auxiliary overline hole 221 and the face thread 3 can be kept unchanged during the swing of the movable overline plate 22, and there is no large interference.
[0052] As shown in Figure 4 The mounting seat 21 is provided with a through hole 225, and the rotating shaft 23 passes through the through hole 225 and is connected with the movable overline plate 22. The through hole 225 is arranged on the mounting seat 21, and the rotating shaft 23 passes through the through hole 225 and is connected with the movable overline plate 22, so that the rotating shaft 23 can be supported and fixed, the stability of the rotating axis is ensured, and the adjustment accuracy of the adjustment amount of the face thread 3 is improved.
[0053] As shown in Figure 5 The bottom guide plate 4 is arranged at the bottom of the outer panel, and the face thread overline bottom guide hole 41 is arranged on the bottom guide plate 4. The bottom guide plate 4 arranged at the bottom of the outer panel can further guide the face thread, and the position of the face thread is guided and stabilized by passing through the bottom guide hole 41.
[0054] As shown in Figure 5 The face thread overline needle 5 is arranged at the bottom of the outer panel, and the face thread passes through the face thread overline needle 5.
[0055] As shown in Figure 5 The thread lifting rod 6 is movably arranged at the upper part of the outer panel, the thread lifting overline hole 61 is arranged on the thread lifting rod 6, and the face thread passes through the thread lifting overline hole 61. The face thread is lifted by the thread lifting rod 6, and the thread lifting overline hole 61 is arranged on the thread lifting rod 6 for the face thread to pass through.
Claims
1. An automatic synchronous compensation device for the wire feeding quantity of a rotary hook, characterized in that, It includes an outer panel, on which a wire guide assembly is connected. The wire guide assembly includes a mounting base fixedly connected to the outer panel and a movable wire guide plate rotatably connected to the mounting base. The movable wire guide plate is wound with a surface wire. The movable wire guide plate is connected to a rotating shaft, and the rotating shaft is connected to a driving component. The driving component drives the rotating shaft to rotate the movable wire guide plate.
2. The automatic synchronous compensation device for the wire feeding quantity of a rotary hook according to claim 1, characterized in that, The bottom of the movable wire guide plate is connected to a rotating shaft, and the movable wire guide plate includes an auxiliary wire guide hole located on the side away from the rotating shaft.
3. The automatic synchronous compensation device for the wire feeding quantity of a rotary hook according to claim 2, characterized in that, The movable guide plate is provided with a movable guide hole, which is a wide hole.
4. The automatic synchronous compensation device for the wire feeding quantity of a rotary hook according to claim 3, characterized in that, The active guide hole and the auxiliary wire passage hole are misaligned.
5. An automatic synchronous compensation device for the wire feeding quantity of a rotary hook according to any one of claims 1-4, characterized in that, The movable wire guide plate is provided with a number of wire guide units, and each wire guide unit is provided with an auxiliary wire guide hole that can pass through the surface wire.
6. The automatic synchronous compensation device for the wire feeding quantity of a rotary hook according to claim 5, characterized in that, The wire guiding unit is a vertical plate installed on the movable wire guiding plate. The vertical plate extends away from the rotating shaft and is provided with auxiliary wire guiding holes.
7. An automatic synchronous compensation device for the wire feeding quantity of a rotary hook according to any one of claims 1-4, characterized in that, The mounting base is provided with a through hole, and the rotating shaft passes through the through hole to connect with the movable wire guide plate.
8. An automatic synchronous compensation device for the wire feeding quantity of a rotary hook according to any one of claims 1-4, characterized in that, The bottom of the outer panel is provided with a bottom guide plate, and the bottom guide plate is provided with a bottom guide hole for the surface line.
9. An automatic synchronous compensation device for the wire feeding quantity of a rotary hook according to any one of claims 1-4, characterized in that, The bottom of the outer panel is provided with a thread guide needle through which the thread is threaded.
10. An automatic synchronous compensation device for the wire feeding quantity of a rotary hook according to any one of claims 1-4, characterized in that, A thread-lifting rod is movably provided on the upper part of the outer panel, and a thread-lifting hole is provided on the thread-lifting rod, through which the surface thread passes.
Citation Information
Patent Citations
Comprehensive feeding sewing machine
CN117488487A