Thread trimming structure of roller lathe

Abstract

The utility model discloses a roller car thread trimming structure which comprises a fixed block and a movable block, the back face of the fixed block is fixedly connected with a connecting plate, the front face of the connecting plate is connected with the movable block in a sliding mode, the connecting plate is provided with a driving mechanism for driving the movable block to slide left and right, and the left side of the fixed block is provided with a groove. The inner wall of the groove is fixedly connected with a fixed cutter, the right side of the movable block is fixedly connected with a movable cutter, the right side of the movable block is fixedly connected with two transverse plates, and the right sides of the two transverse plates are sleeved with pressing blocks slidably connected with the transverse plates. According to the thread trimming device, before a thread is trimmed, the effect of fixing and tensioning the thread can be achieved, the thread can be trimmed rapidly and effectively through the fixed cutter and the movable cutter, the situation that thread trimming is not successful is avoided, and the thread trimming stability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of wire cutting structure technology, and more specifically, to a roller car wire cutting structure. Background Technology

[0002] During the sewing process, when a section of sewing is completed and thread cutting is required, the control system sends a thread-cutting signal. Upon receiving the signal, the drive mechanism begins operation, rapidly moving the moving blade towards the stationary blade. The moving and stationary blades close together, cutting the thread between them. Afterward, the drive mechanism resets the moving blade, awaiting the next thread-cutting command. For example, in the process of sewing clothing, after each sewing step, the worker presses the thread-cutting button, and the thread-cutting mechanism operates according to the above principle, neatly cutting the thread.

[0003] When using the roller thread-cutting mechanism, the moving blade and the fixed blade work together to cut the thread. During the thread-cutting process, if the thread is too loose, the cutting of the thread by the moving blade and the fixed blade will be unstable, which may result in unsuccessful thread cutting and reduced effectiveness in fixing and tightening the thread. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a roller sewing thread cutting structure that achieves the effect of fixing and tightening the sewing thread, thereby improving the stability of the device and production efficiency.

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

[0006] A roller shearing structure includes a fixed block and a movable block. A connecting plate is fixedly connected to the back of the fixed block, and the front of the connecting plate is slidably connected to the movable block. A driving mechanism for driving the movable block to slide left and right is provided on the connecting plate. A groove is formed on the left side of the fixed block, and a fixed blade is fixedly connected to the inner wall of the groove. A movable blade is fixedly connected to the right side of the movable block. Two horizontal plates are fixedly connected to the right side of the movable block. A clamping block is slidably connected to the right side of each of the two horizontal plates. Two square blocks are fixedly connected to the right side of each of the four horizontal plates. The outer sides of the four square blocks are slidably connected to the two clamping blocks respectively. A spring is fixedly connected to the right side of each of the four square blocks, and the right end of each of the four springs is fixedly connected to the two clamping blocks respectively.

[0007] As a further description of the above technical solution:

[0008] The driving mechanism includes a slide groove, which is formed on the front of the connecting plate. An electric push rod is inserted through the inner wall of the slide groove and fixedly connected thereto. A slider is fixedly connected to the left end of the electric push rod. The outer side of the slider is slidably connected to the inner wall of the slide groove, and the front side of the slider is fixedly connected to the movable block.

[0009] As a further description of the above technical solution:

[0010] An adjusting plate is slidably connected to the right side of the clamping block, and a trapezoidal block is fixedly connected to the left side of the adjusting plate. The outer side of the trapezoidal block is slidably connected to the clamping block. A limiting rod is fixedly connected to the trapezoidal block. One end of the limiting rod passes through and extends to the outer side of the clamping block. A second spring is sleeved on the limiting rod. The two ends of the second spring are fixedly connected to the clamping block and the trapezoidal block, respectively.

[0011] As a further description of the above technical solution:

[0012] A roller is rotatably connected to the right side of the horizontal plate, and the outer side of the roller contacts the trapezoidal block.

[0013] As a further description of the above technical solution:

[0014] An anti-slip pad, which is a rubber layer, is fixedly connected to the right side of the adjustment plate.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This solution can fix and tighten the suture before cutting it, allowing the fixed blade and the movable blade to cut the suture quickly and effectively, avoiding unsuccessful cutting and improving the stability of the device. Attached Figure Description

[0017] Figure 1 One of the perspective views of this utility model;

[0018] Figure 2 This is a second perspective view of the present utility model;

[0019] Figure 3 This is a partial perspective view of the present invention;

[0020] Figure 4 This is a cross-sectional view of the movable block in this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Fixed block; 2. Movable block; 3. Connecting plate; 4. Drive mechanism; 401. Slide groove; 402. Electric push rod; 403. Slider; 5. Groove; 6. Fixed blade; 7. Movable blade; 8. Horizontal plate; 9. Pressing block; 10. Square block; 11. Spring 1; 12. Adjusting plate; 13. Trapezoidal block; 14. Limiting rod; 15. Spring 2; 16. Roller; 17. Anti-slip mat. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0024] Please see Figures 1-4 In this utility model: a roller shearing structure includes a fixed block 1 and a movable block 2. A connecting plate 3 is fixedly connected to the back of the fixed block 1, and the front of the connecting plate 3 is slidably connected to the movable block 2. A driving mechanism 4 for driving the movable block 2 to slide left and right is provided on the connecting plate 3. A groove 5 is provided on the left side of the fixed block 1, and a fixed blade 6 is fixedly connected to the inner wall of the groove 5. A movable blade 7 is fixedly connected to the right side of the movable block 2. Two horizontal plates 8 are fixedly connected to the right side of the movable block 2. A pressing block 9 is slidably connected to the right side of each of the two horizontal plates 8. There are two blocks 10, and the outer sides of the four blocks 10 are slidably connected to two clamping blocks 9 respectively. The right side of each of the four blocks 10 is fixedly connected to a spring 11, and the right end of each of the four springs 11 is fixedly connected to the two clamping blocks 9 respectively. The drive mechanism 4 includes a slide groove 401, which is opened on the front of the connecting plate 3. An electric push rod 402 is inserted through the inner wall of the slide groove 401 and fixedly connected thereto. A slider 403 is fixedly connected to the left end of the electric push rod 402. The outer side of the slider 403 is slidably connected to the inner wall of the slide groove 401, and the front of the slider 403 is fixedly connected to the movable block 2.

[0025] In this invention, during use, the thread is conveyed to the left side of the fixed block 1. When thread cutting is required, the control system drives the electric push rod 402 to open, causing the slider 403 to slide on the inner wall of the groove 401. At this time, the movable block 2 moves to the right, and the pressing block 9 moves to the right. The pressing block 9 first contacts the thread, and then presses the thread tightly to the left side of the fixed block 1. As the movable block 2 moves, the horizontal plate 8 is inserted into the pressing block 9 and compresses the spring 11. During this process, the pressing block 9 firmly presses the thread to the left side of the fixed block 1, thereby preventing the thread from bending and maintaining the tension of the thread. As the movable block 2 moves, the movable blade 7 on the movable block 2 moves closer to and contacts the fixed blade 6, thereby realizing the thread cutting. During the thread cutting process, because the thread is fixed, it effectively avoids excessive slack in the thread, thus avoiding unsuccessful thread cutting and improving the stability of the thread cutting device.

[0026] Please see Figures 1-4 The clamping block 9 is slidably connected to the right side of the adjusting plate 12, and the left side of the adjusting plate 12 is fixedly connected to the trapezoidal block 13. The outer side of the trapezoidal block 13 is slidably connected to the clamping block 9. A limit rod 14 is fixedly connected to the trapezoidal block 13. One end of the limit rod 14 passes through and extends to the outer side of the clamping block 9. A second spring 15 is sleeved on the limit rod 14. The two ends of the second spring 15 are fixedly connected to the clamping block 9 and the trapezoidal block 13, respectively.

[0027] In this invention, the adjusting plate 12 replaces the pressing block 9 to press the thread against the left side of the fixing block 1. After the horizontal plate 8 is inserted into the pressing block 9, it will press the inclined surface of the trapezoidal block 13. After the inclined surface of the trapezoidal block 13 is pressed, it will cause the adjusting plate 12 to move. The two adjusting plates 12 will move in opposite directions, thereby achieving the effect of stretching the loose thread and keeping the thread in a taut state. This further improves the stability and effect of the fixed knife 6 and the movable knife 7 in cutting the thread.

[0028] Please see Figure 4 Among them, the right side of the horizontal plate 8 is rotatably connected to a roller 16, and the outer side of the roller 16 is in contact with the trapezoidal block 13.

[0029] In this invention, the roller 16 reduces the friction between the horizontal plate 8 and the trapezoidal block 13, thereby improving the smoothness of the mechanism's operation, reducing wear, and extending the service life of the device.

[0030] Please see Figures 1-4 Among them, an anti-slip pad 17 is fixedly connected to the right side of the adjusting plate 12, and the anti-slip pad 17 is a rubber layer.

[0031] In this invention, the anti-slip pad 17 can increase the friction between the adjusting plate 12 and the sewing thread, which is beneficial for the adjusting plate 12 to pull the sewing thread and improve the practicality of the device.

[0032] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A roller car wire cutting structure, comprising a fixed block (1) and a movable block (2), characterized in that: A connecting plate (3) is fixedly connected to the back of the fixed block (1). The front of the connecting plate (3) is slidably connected to the movable block (2). A driving mechanism (4) for driving the movable block (2) to slide left and right is provided on the connecting plate (3). A groove (5) is provided on the left side of the fixed block (1). A fixed blade (6) is fixedly connected to the inner wall of the groove (5). A movable blade (7) is fixedly connected to the right side of the movable block (2). Two horizontal plates (8) are fixedly connected to the right side of the movable block (2). A pressing block (9) is slidably connected to the right side of each of the two horizontal plates (8). Two square blocks (10) are fixedly connected to the right side of each of the two horizontal plates (8). The outer sides of the four square blocks (10) are slidably connected to the two pressing blocks (9). A spring (11) is fixedly connected to the right side of each of the four square blocks (10). The right ends of the four springs (11) are fixedly connected to the two pressing blocks (9).

2. The roller shearing structure according to claim 1, characterized in that: The drive mechanism (4) includes a slide (401), which is opened on the front of the connecting plate (3). An electric push rod (402) is inserted through the inner wall of the slide (401) and fixedly connected thereto. A slider (403) is fixedly connected to the left end of the electric push rod (402). The outer side of the slider (403) is slidably connected to the inner wall of the slide (401), and the front of the slider (403) is fixedly connected to the movable block (2).

3. The roller shearing structure according to claim 1, characterized in that: An adjusting plate (12) is slidably connected to the right side of the clamping block (9), and a trapezoidal block (13) is fixedly connected to the left side of the adjusting plate (12). The outer side of the trapezoidal block (13) is slidably connected to the clamping block (9). A limiting rod (14) is fixedly connected to the trapezoidal block (13). One end of the limiting rod (14) passes through and extends to the outer side of the clamping block (9). A second spring (15) is sleeved on the limiting rod (14). The two ends of the second spring (15) are fixedly connected to the clamping block (9) and the trapezoidal block (13) respectively.

4. The roller shearing structure according to claim 3, characterized in that: A roller (16) is rotatably connected to the right side of the horizontal plate (8), and the outer side of the roller (16) is in contact with the trapezoidal block (13).

5. The roller shearing structure according to claim 3, characterized in that: An anti-slip pad (17) is fixedly connected to the right side of the adjusting plate (12), and the anti-slip pad (17) is a rubber layer.

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