Breakage-proof yarn bobbin and industrial sewing machine

Abstract

The utility model discloses a kind of yarn cylinder frame and industrial sewing machine of anti-wire breaking, it is related to yarn cylinder frame technical field, comprising: support platform and support rod, the support rod is fixedly connected with the support platform;Support plate is set on the support rod, and is fixedly connected with support rod;By setting lifting mechanism, the stable lifting drive of sliding disc and its upper assembly is realized, so that different height yarn cylinder top end can be adapted and pressed, accurate height adaptation basis is provided for subsequent fixing operation;By setting fixing mechanism, even, reliable circumferential extrusion fixation to yarn cylinder inside is realized, effectively prevent yarn cylinder from happening to sway in the process of paying-off;By setting limiting mechanism, after the extrusion fixation of yarn cylinder, the rotation state of fixed disc is reliably locked, prevent it from accidental return loosening due to vibration or yarn tension, ensure the durability and stability of fixed effect.

Description

Technical Field

[0001] This utility model relates to the field of yarn spool technology, and in particular to a yarn spool anti-breakage device and an industrial sewing machine. Background Technology

[0002] In the textile and sewing industries, industrial sewing machines are key equipment for sewing fabrics. Their stable operation depends on the continuous and smooth supply of yarn. The yarn is usually wound on a yarn spool and supported and released by a yarn spool holder. The stability of the yarn spool during the release process is the foundation for ensuring sewing quality and efficiency. If the yarn spool is not securely fixed, it is prone to shaking, swaying, or even colliding with the holder when the equipment is running at high speed. This leads to unstable yarn tension and poor release, which can easily cause problems such as yarn breakage and tangling. This not only causes production interruptions and material waste, but the frequent yarn breakage also seriously affects the stability of continuous operation of the equipment and the sewing quality of the final product.

[0003] Existing industrial sewing machine yarn spool holders often employ simple support structures to fix the yarn spools. A common approach is to use a fixed-height column or mandrel, on which the yarn spool is directly fitted. Initial positioning relies on the friction between the inner hole of the yarn spool and the support shaft, as well as the weight of the yarn spool itself. While this method is simple, it cannot accommodate yarn spools of varying heights. For shorter yarn spools, the top lacks effective downward pressure limiting. During high-speed yarn transport, a certain tension is applied to the yarn spool, causing it to wobble or slide on the support. This results in fluctuations in yarn tension. Furthermore, the yarn passes through multiple components during transport, further exacerbating friction. This can lead to yarn breakage and affect yarn transmission and use. Another solution is to use a mechanism with a simple threaded top rod or movable pressure plate, which is manually screwed or turned to press the top of the yarn bobbin. Although this method can provide a certain amount of pressure, the pressing points are usually single points or a few points, making it difficult to achieve uniform and reliable circumferential pressure on the entire top surface of the yarn bobbin. The pressing force is not easy to control, which may lead to local deformation or indentation of the yarn bobbin. More importantly, under the continuous vibration generated by the sewing machine during long-term operation, such simple locking structures are prone to gradual loss of fixing effect due to loosening of the threads or slippage of the pressure plate, which cannot ensure a lasting lock and poses a risk of the yarn bobbin gradually loosening or even falling off. Therefore, this needs to be improved. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a yarn spool holder and an industrial sewing machine that prevent yarn breakage, in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A yarn bobbin holder for preventing yarn breakage includes a support platform and a support rod, wherein the support rod is fixedly connected to the support platform; and further includes: A support plate is mounted on the support rod and is fixedly connected to the support rod; The support sleeve has two parts, and the two support sleeves are symmetrically arranged on the support plate and fixedly connected to the support plate; The lifting mechanism, mounted on the support plate, is used to adjust the yarn bobbins at different heights; A fixing mechanism, mounted on the lifting mechanism, is used to compress and fix the yarn bobbin; A limiting mechanism is provided on the lifting mechanism.

[0006] Preferably, the lifting mechanism includes: A lifting shaft is mounted on the support plate and is rotatably connected to the support plate. The first lifting ring is disposed inside the support sleeve and is fixedly connected to the lifting shaft; The second lifting ring is fixedly connected to the lifting shaft and rotatably connected to the support plate; The lifting block is fixedly connected to the lifting shaft; A sliding component is disposed within the support sleeve.

[0007] Preferably, the sliding component includes: A sliding groove is formed inside the support sleeve; A sliding block is disposed within the sliding groove and is slidably connected to the sliding groove; A sliding ring is fixedly connected to the sliding block and threadedly connected to the lifting shaft. The sliding sleeve is fixedly connected to the sliding ring; A sliding disk is mounted on the sliding sleeve and is fixedly connected to the sliding sleeve.

[0008] Preferably, the fixing mechanism includes: A fixed shaft is mounted on the sliding disk and is rotatably connected to the sliding disk; A fixed disk is disposed on the fixed shaft and fixedly connected to the fixed shaft; A fixing hole is formed on the fixing plate; A support plate is mounted on the fixed shaft and is fixedly connected to the fixed shaft. A rotating component is mounted on the support plate.

[0009] Preferably, the rotating component includes: The first rotating shaft has multiple shafts, and the multiple first rotating shafts are symmetrically arranged on the support plate and fixedly connected to the support plate; A rotating plate, one end of which is rotatably connected to the first rotating shaft; The second rotating shaft is rotatably connected to the other end of the rotating plate; The rotating blocks are multiple in number and are symmetrically arranged on the sliding disk, slidably connected to the sliding disk, and fixedly connected to the second rotating shaft.

[0010] Preferably, the limiting mechanism includes: A limiting block is disposed on the sliding disk and fixedly connected to the sliding disk; A limiting groove is formed on the limiting block; A limiting rod is disposed on the limiting block and is slidably connected to the limiting block; The limiting plate is fixedly connected to the limiting rod; An elastic component is disposed within the limiting groove.

[0011] Preferably, the elastic component includes: Multiple elastic rods are provided, and the multiple elastic rods are symmetrically arranged in the limiting groove and fixedly connected to the limiting block. The elastic block is disposed in the limiting groove, slidably connected to the elastic rod, and also fixedly connected to the limiting rod; An elastic spring, one end of which is fixedly connected to the elastic block, and the other end of which is fixedly connected to the limiting block; A connecting component is disposed on the elastic block.

[0012] Preferably, the connecting component includes: A connecting plate is disposed on the elastic block and is fixedly connected to the elastic block; The connecting column is fixedly connected to the connecting plate and slidably connected to the fixing hole.

[0013] Preferably, it includes: a sewing machine for sewing fabric, said sewing machine being mounted on a support platform.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: By setting up a lifting mechanism, the sliding plate and its components are driven to move smoothly up and down, thus adapting to and pressing against the top of yarn bobbins of different heights, providing a precise height adaptation basis for subsequent fixing operations. By setting up a fixing mechanism, the yarn bobbin is uniformly and reliably squeezed and fixed inside, effectively preventing the yarn bobbin from shaking during the unwinding process. By setting up a limiting mechanism, the rotation of the fixing plate is reliably locked after the yarn bobbin is squeezed and fixed, preventing it from accidentally rotating and loosening due to vibration or yarn tension, ensuring the durability and stability of the fixing effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural diagram of a yarn spool frame for preventing yarn breakage and an industrial sewing machine is shown.

[0017] Figure 2 A three-dimensional cross-sectional structural diagram of a yarn spool frame for preventing yarn breakage and an industrial sewing machine is shown.

[0018] Figure 3 An exploded three-dimensional view of a yarn spool frame designed to prevent yarn breakage and an industrial sewing machine is shown.

[0019] Figure 4 An exploded view of a yarn bobbin holder for preventing yarn breakage and a lifting mechanism for an industrial sewing machine is shown.

[0020] Figure 5 An exploded view of a yarn spool holder for preventing yarn breakage and a fixing mechanism for an industrial sewing machine is shown.

[0021] Figure 6 An exploded view of a yarn bobbin holder for preventing yarn breakage and a limiting mechanism for an industrial sewing machine is shown.

[0022] Figure 7 A three-dimensional structural diagram of a yarn spool holder for preventing yarn breakage and a fixing mechanism for an industrial sewing machine is shown.

[0023] Figure 8 A three-dimensional structural diagram of a yarn spool holder for preventing yarn breakage and a limiting mechanism for an industrial sewing machine is shown.

[0024] Legend: 1. Support platform; 2. Support rod; 3. Support plate; 4. Support sleeve; 5. Lifting shaft; 6. First lifting ring; 7. Second lifting ring; 8. Lifting block; 9. Sliding groove; 10. Sliding block; 11. Sliding ring; 12. Sliding sleeve; 13. Sliding disc; 14. Fixed shaft; 15. Fixed disc; 16. Fixed hole; 17. Support disc; 18. First rotating shaft; 19. Rotating plate; 20. Second rotating shaft; 21. Rotating block; 22. Limiting block; 23. Limiting groove; 24. Limiting rod; 25. Limiting disc; 26. Elastic rod; 27. Elastic block; 28. Elastic spring; 29. ​​Connecting plate; 30. Connecting column. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Reference Figures 1 to 8 The present invention provides a further description of an embodiment of a yarn bobbin frame for preventing yarn breakage and an industrial sewing machine.

[0030] A yarn bobbin anti-breakage rack includes a support platform 1 and a support rod 2, with the support rod 2 fixedly connected to the support platform 1; it also includes: a support plate 3, disposed on the support rod 2 and fixedly connected to the support rod 2; two support sleeves 4, symmetrically disposed on the support plate 3 and fixedly connected to the support plate 3; a lifting mechanism, disposed on the support plate 3, for adjusting yarn bobbins of different heights; a fixing mechanism, disposed on the lifting mechanism, for squeezing and fixing the yarn bobbins; and a limiting mechanism, disposed on the lifting mechanism.

[0031] Reference Figure 4 In a preferred embodiment, the lifting mechanism includes: a lifting shaft 5, which is disposed on the support plate 3 and rotatably connected to the support plate 3; the lifting shaft 5 is a threaded rod; a first lifting ring 6, which is disposed inside the support sleeve 4 and fixedly connected to the lifting shaft 5; a second lifting ring 7, which is fixedly connected to the lifting shaft 5 and rotatably connected to the support plate 3; a lifting block 8, which is fixedly connected to the lifting shaft 5; and a sliding component disposed inside the support sleeve 4.

[0032] During operation, rotating the lifting block 8 causes the lifting shaft 5, which is fixedly connected to the lifting block 8, to rotate on the support plate 3, so that the first lifting ring 6 and the second lifting ring 7, which are fixedly connected to the lifting shaft 5, rotate on the support sleeve 4 and the support plate 3.

[0033] Reference Figure 4 and Figure 5 In a preferred embodiment, the sliding component includes: a sliding groove 9, which is formed inside the support sleeve 4; a sliding block 10, which is disposed inside the sliding groove 9 and is slidably connected to the sliding groove 9; a sliding ring 11, which is fixedly connected to the sliding block 10 and threadedly connected to the lifting shaft 5; a sliding sleeve 12, which is fixedly connected to the sliding ring 11; and a sliding disk 13, which is disposed on the sliding sleeve 12 and is fixedly connected to the sliding sleeve 12.

[0034] During operation, the sliding ring 11, which is threadedly connected to the lifting shaft 5, rotates, causing the sliding ring 11 to drive the sliding sleeve 12 to move within the support sleeve 4. This causes the sliding block 10, which is fixedly connected to the sliding ring 11, to slide within the sliding groove 9, thereby causing the sliding disc 13, which is fixedly connected to the sliding sleeve 12, to move towards the top of the yarn bobbin. This, in turn, drives the entire fixing mechanism to move up and down.

[0035] Reference Figure 5 and Figure 7 In a preferred embodiment, the fixing mechanism includes: a fixing shaft 14, which is disposed on the sliding disk 13 and rotatably connected to the sliding disk 13; a fixing disk 15, which is disposed on the fixing shaft 14 and fixedly connected to the fixing shaft 14; a fixing hole 16, which is formed on the fixing disk 15; a support disk 17, which is disposed on the fixing shaft 14 and fixedly connected to the fixing shaft 14; and a rotating component, which is disposed on the support disk 17.

[0036] During operation, rotating the fixed disk 15 causes the fixed hole 16 on the fixed disk 15 to rotate in the direction of the connecting column 30, so that the fixed shaft 14, which is fixedly connected to the fixed disk 15, rotates on the sliding disk 13, causing the support disk 17, which is fixedly connected to the fixed shaft 14, to rotate inside the sliding disk 13.

[0037] Reference Figure 5 and Figure 7In a preferred embodiment, the rotating component includes: a plurality of first rotating shafts 18, which are symmetrically arranged on the support disk 17 and fixedly connected to the support disk 17; a rotating plate 19, one end of which is rotatably connected to the first rotating shafts 18; a second rotating shaft 20, which is rotatably connected to the other end of the rotating plate 19; and a plurality of rotating blocks 21, which are symmetrically arranged on the sliding disk 13, slidably connected to the sliding disk 13, and fixedly connected to the second rotating shafts 20.

[0038] During operation, the rotating plate 19, which is rotatably connected to the first rotating shaft 18, rotates, causing the rotating block 21, which is fixedly connected to the second rotating shaft 20, to slide onto the sliding disk 13, thereby moving the rotating block 21 outward from the sliding disk 13.

[0039] Reference Figure 6 and Figure 8 In a preferred embodiment, the limiting mechanism includes: a limiting block 22, which is disposed on the sliding disk 13 and fixedly connected to the sliding disk 13; a limiting groove 23, which is formed on the limiting block 22; a limiting rod 24, which is disposed on the limiting block 22 and slidably connected to the limiting block 22; a limiting disk 25, which is fixedly connected to the limiting rod 24; and an elastic component disposed in the limiting groove 23.

[0040] During operation, pulling the limiting plate 25 causes it to move away from the limiting block 22, allowing the limiting rod 24, which is fixedly connected to the limiting block 22, to slide on the limiting block 22.

[0041] Reference Figure 6 and Figure 8 In a preferred embodiment, the elastic component includes: multiple elastic rods 26 symmetrically arranged in the limiting groove 23 and fixedly connected to the limiting block 22; an elastic block 27 disposed in the limiting groove 23, slidably connected to the elastic rods 26, and fixedly connected to the limiting rod 24; an elastic spring 28, one end fixedly connected to the elastic block 27, and the other end fixedly connected to the limiting block 22; a connecting plate 29 disposed on the elastic block 27 and fixedly connected to the elastic block 27; and a connecting post 30 fixedly connected to the connecting plate 29 and slidably connected to the fixing hole 16.

[0042] During operation, the elastic block 27, which is fixedly connected to the limiting rod 24, slides on the elastic rod 26 in the limiting groove 23, causing the elastic spring 28, which is fixedly connected to the elastic block 27, to be compressed, generating elastic potential energy, which drives the connecting plate 29, which is fixedly connected to the elastic block 27, to move, causing the connecting column 30, which is fixedly connected to the connecting plate 29, to move away from the sliding disk 13.

[0043] Working principle: In use, first, the yarn bobbin is placed on the support sleeve 4. Then, the lifting block 8 is rotated, which drives the lifting shaft 5, which is fixedly connected to the lifting block 8, to rotate on the support plate 3. This causes the first lifting ring 6 and the second lifting ring 7, which are fixedly connected to the lifting shaft 5, to rotate on the support sleeve 4 and the support plate 3. This causes the sliding ring 11, which is threadedly connected to the lifting shaft 5, to rotate. This causes the sliding ring 11 to drive the sliding sleeve 12 to move inside the support sleeve 4. This causes the sliding block 10, which is fixedly connected to the sliding ring 11, to slide inside the sliding groove 9. This causes the sliding disc 13, which is fixedly connected to the sliding sleeve 12, to move towards the top of the yarn bobbin, thereby realizing the lifting and lowering adjustment of the yarn bobbin at different heights. Next, pull the limiting plate 25, causing it to move away from the limiting block 22. This causes the limiting rod 24, which is fixedly connected to the limiting block 22, to slide on the limiting block 22. This causes the elastic block 27, which is fixedly connected to the limiting rod 24, to slide on the elastic rod 26 in the limiting groove 23. This causes the elastic spring 28, which is fixedly connected to the elastic block 27, to be compressed, generating elastic potential energy. This causes the connecting plate 29, which is fixedly connected to the elastic block 27, to move. This causes the connecting post 30, which is fixedly connected to the connecting plate 29, to move away from the sliding plate 13. Then, rotate the fixed plate 15, causing the fixing hole 16 on the fixed plate 15 to rotate towards the connecting post 30. This causes the fixing shaft 1, which is fixedly connected to the fixed plate 15, to rotate towards the connecting post 30. 4. The rotating plate 19, which is rotatably connected to the first rotating shaft 18, rotates on the sliding plate 13, causing the rotating block 21, which is rotatably connected to the second rotating shaft 20, to slide onto the sliding plate 13. This causes the rotating block 21 to move outward from the sliding plate 13 until it comes into contact with the top of the yarn bobbin, thus limiting and fixing the yarn bobbin. Then, the limiting plate 25 is released, causing the elastic spring 28 to release its elastic potential energy, which causes the connecting post 30 on the connecting plate 29 to slide into the fixing hole 16, thereby limiting and fixing the fixed plate 15. This prevents the yarn bobbin from shaking during use and reduces the risk of yarn breakage.

[0044] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A yarn bobbin holder for preventing yarn breakage, comprising a support platform (1) and a support rod (2), wherein the support rod (2) is fixedly connected to the support platform (1); characterized in that, Also includes: A support plate (3) is mounted on the support rod (2) and is fixedly connected to the support rod (2); There are two support sleeves (4), and the two support sleeves (4) are symmetrically arranged on the support plate (3) and fixedly connected to the support plate (3); The lifting mechanism is set on the support plate (3) and is used to adjust the yarn bobbins at different heights; A fixing mechanism, mounted on the lifting mechanism, is used to compress and fix the yarn bobbin; A limiting mechanism is provided on the lifting mechanism.

2. The yarn bobbin holder for preventing yarn breakage according to claim 1, characterized in that, The lifting mechanism includes: The lifting shaft (5) is mounted on the support plate (3) and is rotatably connected to the support plate (3); The first lifting ring (6) is disposed inside the support sleeve (4) and is fixedly connected to the lifting shaft (5); The second lifting ring (7) is fixedly connected to the lifting shaft (5) and rotatably connected to the support plate (3); The lifting block (8) is fixedly connected to the lifting shaft (5); The sliding component is disposed inside the support sleeve (4).

3. A yarn bobbin holder for preventing yarn breakage according to claim 2, characterized in that, The sliding component includes: A sliding groove (9) is formed inside the support sleeve (4); A sliding block (10) is disposed in the sliding groove (9) and is slidably connected to the sliding groove (9); The sliding ring (11) is fixedly connected to the sliding block (10) and threadedly connected to the lifting shaft (5); The sliding sleeve (12) is fixedly connected to the sliding ring (11); The sliding disk (13) is disposed on the sliding sleeve (12) and is fixedly connected to the sliding sleeve (12).

4. A yarn bobbin holder for preventing yarn breakage according to claim 3, characterized in that, The fixing mechanism includes: A fixed shaft (14) is disposed on the sliding disk (13) and is rotatably connected to the sliding disk (13); A fixed disk (15) is disposed on the fixed shaft (14) and fixedly connected to the fixed shaft (14); A fixing hole (16) is provided on the fixing plate (15); A support plate (17) is disposed on the fixed shaft (14) and is fixedly connected to the fixed shaft (14); The rotating component is mounted on the support plate (17).

5. A yarn bobbin holder for preventing yarn breakage according to claim 4, characterized in that, The rotating component includes: The first rotating shaft (18) has multiple shafts, and the multiple first rotating shafts (18) are symmetrically arranged on the support plate (17) and fixedly connected to the support plate (17); The rotating plate (19) is rotatably connected at one end to the first rotating shaft (18); The second rotating shaft (20) is rotatably connected to the other end of the rotating plate (19); There are multiple rotating blocks (21), and the multiple rotating blocks (21) are symmetrically arranged on the sliding disk (13), slidably connected to the sliding disk (13), and fixedly connected to the second rotating shaft (20).

6. A yarn bobbin holder for preventing yarn breakage according to claim 5, characterized in that, The limiting mechanism includes: A limiting block (22) is disposed on the sliding disk (13) and is fixedly connected to the sliding disk (13); A limiting groove (23) is formed on the limiting block (22); A limiting rod (24) is disposed on the limiting block (22) and is slidably connected to the limiting block (22); The limiting plate (25) is fixedly connected to the limiting rod (24); The elastic component is disposed in the limiting groove (23).

7. A yarn bobbin holder for preventing yarn breakage according to claim 6, characterized in that, The elastic component includes: Multiple elastic rods (26) are provided, and the multiple elastic rods (26) are symmetrically arranged in the limiting groove (23) and fixedly connected to the limiting block (22); The elastic block (27) is set in the limiting groove (23), slidably connected to the elastic rod (26), and also fixedly connected to the limiting rod (24); One end of the elastic spring (28) is fixedly connected to the elastic block (27), and the other end is fixedly connected to the limiting block (22); A connecting component is disposed on the elastic block (27).

8. A yarn bobbin holder for preventing yarn breakage according to claim 7, characterized in that, The connecting component includes: A connecting plate (29) is disposed on the elastic block (27) and is fixedly connected to the elastic block (27); The connecting column (30) is fixedly connected to the connecting plate (29) and slidably connected to the fixing hole (16).

9. An industrial sewing machine, characterized in that, include: A sewing machine for sewing fabric, and a yarn spool as described in any one of claims 1-8, wherein the sewing machine is mounted on a support platform (1).

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