Lever-type yarn-breaking automatic stop mechanism

Abstract

The utility model discloses a lever-type yarn-breaking automatic stop mechanism, which relates to the technical field of yarn-breaking automatic stop mechanisms and comprises a driving plate, a supporting sleeve, a lever-type yarn-breaking automatic stop mechanism, a lever-type yarn-breaking automatic stop mechanism and a lever-type yarn-breaking automatic stop mechanism, the supporting ring is fixedly connected with the supporting sleeve; the infrared detector is arranged on the fixed plate and is fixedly connected with the fixed plate; the driving block is arranged at the bottom of the driving plate and is in fit sliding connection with the bottom of the driving plate; by arranging an elastic mechanism and a driving block, the extrusion of a driving plate on the driving block is buffered, and the situation that the yarn is broken or damaged due to the fact that the extrusion force of a supporting ring on the yarn is large is avoided; and by arranging the lifting mechanism, lifting of the driving block is achieved, different yarns can be extruded conveniently, and the supporting ring can respond to the infrared detector more quickly when the yarns are broken.

Description

Technical Field

[0001] This utility model relates to the technical field of yarn breakage self-stop mechanism, and in particular to a lever-type yarn breakage self-stop mechanism. Background Technology

[0002] Yarn breakage automatic stop mechanism is a key device in textile machinery used to detect yarn breakage and automatically stop the machine, especially in the knitting or weaving field. In textile production, yarn is prone to breakage due to uneven tension, friction, or external factors during high-speed operation. If the machine is not stopped in time, it will lead to fabric defects, reduced production efficiency, or even equipment damage. Therefore, the yarn breakage automatic stop mechanism plays an important role in textile machinery, enabling real-time monitoring of yarn status to ensure production quality and continuity.

[0003] Existing yarn breakage self-stop mechanisms mostly employ mechanical levers or electronic sensors. For example, in knitting machines, a common structure uses a lever assembly to drive a detection element. When the yarn breaks, the lever loses its balance, triggering a stop signal. These mechanisms typically include components such as a fixed plate, a support shaft, and a drive plate. The drive plate compresses a drive block to apply pressure to the yarn via a support ring. Once the yarn breaks, the displacement of the support ring activates an infrared detector, resulting in a rapid stop. However, in practice, the compression force of the drive plate on the drive block is often fixed, leading to excessive pressure on the yarn from the support ring. This can easily cause the yarn to be crushed or broken during normal operation, especially for fine denier or highly elastic yarns, where such rigid compression is more likely to cause breakage. Furthermore, inaccurate compression force can affect detection sensitivity, resulting in a slower response speed of the support ring when the yarn breaks, potentially delaying the stop time and increasing the defect rate. Therefore, improvements are needed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a lever-type yarn breakage self-stopping mechanism, which aims to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lever-type yarn breakage self-stopping mechanism includes a support plate and a fixed plate, wherein the fixed plate is fixedly connected to the support plate; and further includes:

[0007] A perforated plate is disposed on the support plate, fixedly connected to the support plate, and fixedly connected to the fixing plate;

[0008] A support shaft is mounted on the fixed plate and fixedly connected to the fixed plate.

[0009] A support sleeve is disposed on the support shaft and rotatably connected to the support shaft;

[0010] The drive plate is fixedly connected to the support sleeve;

[0011] The support ring is fixedly connected to the support sleeve;

[0012] An infrared detector is mounted on the fixed plate and fixedly connected to the fixed plate.

[0013] The driving block is located at the bottom of the driving plate and is slidably connected to the bottom of the driving plate.

[0014] A lifting mechanism, mounted on the fixed plate, is used to raise or lower the height of the drive block;

[0015] An elastic mechanism, provided on the lifting mechanism, is used to buffer the compression of the drive block.

[0016] Preferably, the lifting mechanism includes:

[0017] The lifting frame is mounted on the fixed plate and fixedly connected to the fixed plate;

[0018] A lifting motor is fixedly connected to the lifting frame;

[0019] The lifting shaft is fixedly connected to the output end of the lifting motor and rotatably connected to the fixed plate.

[0020] A sliding component is disposed on the fixed plate.

[0021] Preferably, the sliding component includes:

[0022] A sliding rod is disposed on the fixed plate and fixedly connected to the fixed plate;

[0023] Two sliding blocks are symmetrically arranged on the sliding rod, slidably connected to the sliding rod, and threadedly connected to the lifting shaft;

[0024] A rotating component is mounted on the sliding block.

[0025] Preferably, the rotating component includes:

[0026] A first rotating shaft is disposed on the sliding block and is fixedly connected to the sliding block;

[0027] A rotating plate is rotatably connected to the first rotating shaft;

[0028] The second rotating shaft is rotatably connected to the rotating plate;

[0029] A rotating frame is mounted on the second rotating shaft and is fixedly connected to the second rotating shaft.

[0030] Preferably, the elastic mechanism includes:

[0031] An elastic frame is disposed on the rotating frame, fixedly connected to the rotating frame, and slides in contact with the fixed plate;

[0032] An elastic groove is formed within the elastic frame;

[0033] An elastic block is disposed within the elastic groove and is slidably connected to the elastic groove;

[0034] The connecting component is disposed within the elastic groove.

[0035] Preferably, the connecting component includes:

[0036] A connecting plate is disposed in the elastic groove, slidably connected to the elastic groove, fixedly connected to the elastic block, and also fixedly connected to the driving block;

[0037] The connecting springs are multiple and are evenly arranged in the elastic groove. One end of each connecting spring is fixedly connected to the connecting plate, and the other end is fixedly connected to the elastic frame.

[0038] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0039] By setting up an elastic mechanism and a drive block, the compression of the drive plate onto the drive block is buffered, preventing the support ring from exerting too much pressure on the yarn, which could cause the yarn to break or be damaged. By setting up a lifting mechanism, the drive block can be raised and lowered, which facilitates the compression of different yarns and allows the support ring to respond more quickly to the infrared detector when the yarn breaks. Attached Figure Description

[0040] 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.

[0041] Figure 1 A three-dimensional structural schematic diagram of a lever-type yarn breakage self-stopping mechanism is shown.

[0042] Figure 2 A three-dimensional cross-sectional schematic diagram of a lever-type yarn breakage self-stopping mechanism is shown.

[0043] Figure 3 An exploded three-dimensional view of a lever-type yarn breakage self-stopping mechanism is shown.

[0044] Figure 4 An exploded view of the elastic mechanism of a lever-type yarn breakage self-stopping mechanism is shown.

[0045] Figure 5 An exploded view of the lifting mechanism of a lever-type yarn breakage self-stopping mechanism is shown.

[0046] Legend:

[0047] 1. Support plate; 2. Fixing plate; 3. Perforated plate; 4. Support shaft; 5. Support sleeve; 6. Drive plate; 7. Support ring; 8. Infrared detector; 9. Drive block; 10. Lifting frame; 11. Lifting motor; 12. Lifting shaft; 13. Sliding rod; 14. Sliding block; 15. First rotating shaft; 16. Rotating plate; 17. Second rotating shaft; 18. Rotating frame; 19. Elastic frame; 20. Elastic groove; 21. Elastic block; 22. Connecting plate; 23. Connecting spring. Detailed Implementation

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] Reference Figures 1 to 5 The present invention provides a further description of an embodiment of a lever-type yarn breakage self-stopping mechanism.

[0053] A lever-type yarn breakage self-stopping mechanism includes a support plate 1 and a fixed plate 2, with the fixed plate 2 fixedly connected to the support plate 1; it also includes: a perforated plate 3, disposed on the support plate 1 and fixedly connected to both the support plate 1 and the fixed plate 2; a support shaft 4, disposed on the fixed plate 2 and fixedly connected to it; a support sleeve 5, disposed on the support shaft 4 and rotatably connected to it; a drive plate 6, fixedly connected to the support sleeve 5; a support ring 7, fixedly connected to the support sleeve 5; an infrared detector 8, disposed on the fixed plate 2 and fixedly connected to it; a drive block 9, disposed at the bottom of the drive plate 6 and slidably connected to it; a lifting mechanism, disposed on the fixed plate 2, for raising and lowering the height of the drive block 9; and an elastic mechanism, disposed on the lifting mechanism, for cushioning the compression applied to the drive block 9.

[0054] Reference Figure 5 In a preferred embodiment, the lifting mechanism includes: a lifting frame 10, which is disposed on and fixedly connected to the fixed plate 2; a lifting motor 11, which is fixedly connected to the lifting frame 10; a lifting shaft 12, which is fixedly connected to the output end of the lifting motor 11 and rotatably connected to the fixed plate 2; a sliding rod 13, which is disposed on and fixedly connected to the fixed plate 2; two sliding blocks 14, which are symmetrically disposed on the sliding rod 13, slidably connected to the sliding rod 13, and threadedly connected to the lifting shaft 12; and a rotating component, which is disposed on the sliding blocks 14.

[0055] When in operation, the lifting motor 11 is started, which drives the lifting shaft 12, which is fixedly connected to the output end of the lifting motor 11, to rotate on the fixed plate 2. This causes the sliding block 14, which is threadedly connected to the lifting shaft 12, to rotate, which in turn causes the sliding block 14 to slide on the sliding rod 13, so that the sliding blocks 14 move closer to each other.

[0056] Reference Figure 5In a preferred embodiment, the rotating component includes: a first rotating shaft 15, which is disposed on the sliding block 14 and fixedly connected to the sliding block 14; a rotating plate 16, which is rotatably connected to the first rotating shaft 15; a second rotating shaft 17, which is rotatably connected to the rotating plate 16; and a rotating frame 18, which is disposed on the second rotating shaft 17 and fixedly connected to the second rotating shaft 17.

[0057] During operation, the rotating plate 16, which is rotatably connected to the first rotating shaft 15, rotates, causing the rotating frame 18, which is fixedly connected to the second rotating shaft 17, to move away from the support plate 1.

[0058] Reference Figure 4 In a preferred embodiment, the elastic mechanism includes: an elastic frame 19, which is disposed on a rotating frame 18, fixedly connected to the rotating frame 18, and slidingly attached to the fixed plate 2; an elastic groove 20, which is formed inside the elastic frame 19; an elastic block 21, which is disposed inside the elastic groove 20 and slidably connected to the elastic groove 20; a connecting plate 22, which is disposed inside the elastic groove 20, slidably connected to the elastic groove 20, fixedly connected to the elastic block 21, and also fixedly connected to the driving block 9; and multiple connecting springs 23, which are evenly disposed inside the elastic groove 20, with one end fixedly connected to the connecting plate 22 and the other end fixedly connected to the elastic frame 19.

[0059] During operation, the drive block 9 slides into the elastic frame 19, causing the connecting plate 22, which is fixedly connected to the drive block 9, to slide into the elastic frame 19. This compresses the connecting spring 23, which is fixedly connected to the connecting plate 22, generating elastic potential energy, which in turn causes the elastic block 21, which is fixedly connected to the connecting plate 22, to slide within the elastic groove 20.

[0060] Working principle: In use, the yarn is first passed through the perforated plate 3 and the support ring 7. Then, the lifting motor 11 is started, which drives the lifting shaft 12, which is fixedly connected to the output end of the lifting motor 11, to rotate on the fixed plate 2. This causes the sliding block 14, which is threadedly connected to the lifting shaft 12, to rotate. The sliding block 14 slides on the sliding rod 13, causing the sliding blocks 14 to move closer to each other. This causes the rotating plate 16, which is rotatably connected to the first rotating shaft 15, to rotate. This causes the rotating frame 18, which is fixedly connected to the second rotating shaft 17, to move away from the support plate 1. This causes the elastic frame 19 to move, causing the driving block 9 to press against the driving plate 6. The driving plate 6 then causes the support sleeve 5 to rotate on the support rod, causing the support ring 7 to press against the yarn. This achieves the lifting and lowering of the driving block 9, allowing for adjustment of different yarns and preventing the support ring 7 from not rotating in time when the yarn breaks.

[0061] Then, when the drive block 9 contacts the drive plate 6, the drive block 9 slides into the elastic frame 19, causing the connecting plate 22, which is fixedly connected to the drive block 9, to slide into the elastic frame 19. This compresses the connecting spring 23, which is fixedly connected to the connecting plate 22, generating elastic potential energy. This causes the elastic block 21, which is fixedly connected to the connecting plate 22, to slide in the elastic groove 20, thereby buffering the compression on the drive block 9 and preventing excessive compression on the yarn, which could damage the yarn. When the yarn breaks, the connecting spring 23 releases its elastic potential energy, causing the drive block 9 to lift the drive plate 6, causing the support ring 7 to rotate rapidly, thereby triggering the infrared detector 8 and achieving a rapid shutdown operation.

[0062] 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 lever-type yarn breakage self-stopping mechanism, comprising a support plate (1) and a fixing plate (2), wherein the fixing plate (2) is fixedly connected to the support plate (1); characterized in that, Also includes: A perforated plate (3) is disposed on the support plate (1), fixedly connected to the support plate (1), and fixedly connected to the fixing plate (2); The support shaft (4) is set on the fixed plate (2) and fixedly connected to the fixed plate (2); A support sleeve (5) is disposed on the support shaft (4) and is rotatably connected to the support shaft (4); The drive plate (6) is fixedly connected to the support sleeve (5); The support ring (7) is fixedly connected to the support sleeve (5); An infrared detector (8) is mounted on the fixed plate (2) and fixedly connected to the fixed plate (2); The driving block (9) is located at the bottom of the driving plate (6) and is slidably connected to the bottom of the driving plate (6); A lifting mechanism is provided on the fixed plate (2) for raising and lowering the height of the drive block (9); An elastic mechanism is provided on the lifting mechanism to buffer the compression of the drive block (9).

2. The lever-type yarn breakage self-stopping mechanism according to claim 1, characterized in that, The lifting mechanism includes: The lifting frame (10) is set on the fixed plate (2) and fixedly connected to the fixed plate (2); The lifting motor (11) is fixedly connected to the lifting frame (10); The lifting shaft (12) is fixedly connected to the output end of the lifting motor (11) and rotatably connected to the fixed plate (2); A sliding component is disposed on the fixed plate (2).

3. The lever-type yarn breakage self-stopping mechanism according to claim 2, characterized in that, The sliding component includes: A sliding rod (13) is mounted on the fixed plate (2) and is fixedly connected to the fixed plate (2); There are two sliding blocks (14), and the two sliding blocks (14) are symmetrically arranged on the sliding rod (13), slidably connected to the sliding rod (13), and threadedly connected to the lifting shaft (12); A rotating component is disposed on the sliding block (14).

4. The lever-type yarn breakage self-stopping mechanism according to claim 3, characterized in that, The rotating component includes: The first rotating shaft (15) is disposed on the sliding block (14) and is fixedly connected to the sliding block (14); Rotating plate (16) is rotatably connected to the first rotating shaft (15); The second rotating shaft (17) is rotatably connected to the rotating plate (16); The rotating frame (18) is mounted on the second rotating shaft (17) and is fixedly connected to the second rotating shaft (17).

5. The lever-type yarn breakage self-stopping mechanism according to claim 4, characterized in that, The elastic mechanism includes: The elastic frame (19) is set on the rotating frame (18), fixedly connected to the rotating frame (18), and sliding in contact with the fixed plate (2); An elastic groove (20) is formed inside the elastic frame (19); The elastic block (21) is disposed in the elastic groove (20) and is slidably connected to the elastic groove (20); The connecting component is disposed within the elastic groove (20).

6. The lever-type yarn breakage self-stopping mechanism according to claim 5, characterized in that, The connecting component includes: The connecting plate (22) is disposed in the elastic groove (20), is slidably connected to the elastic groove (20), is fixedly connected to the elastic block (21), and is also fixedly connected to the driving block (9); There are multiple connecting springs (23), and the multiple connecting springs (23) are evenly arranged in the elastic groove (20). One end is fixedly connected to the connecting plate (22), and the other end is fixedly connected to the elastic frame (19).

Images