An automatic wire cutting device for a winding machine

Abstract

This utility model relates to the technical field of thread trimming devices and discloses an automatic thread trimming device for a winding machine, including a mounting frame, a drive mechanism, a thread guide frame, a horizontal hook, a pushing mechanism, a thread pusher block, and a scissor mechanism. Using the mechanism of this application, the horizontal hook on the thread guide frame effectively prevents the yarn from detaching from the outer end of the thread guide frame when it is rotated by the drive mechanism, thus preventing the failure to move the yarn to the corresponding position. The pushing mechanism is located at the inner end of the thread guide frame, ensuring that the pushing mechanism and the thread pusher block on it rotate with the thread guide frame, guaranteeing that the direction of movement of the pushing mechanism and the thread pusher block remains parallel to the length direction of the thread guide frame. This avoids the problem of the yarn not being accurately moved to the corresponding position in the prior art, ensuring the thread trimming effect.

Description

Technical Field

[0001] This utility model relates to the technical field of wire cutting devices, specifically an automatic wire cutting device for a winding machine. Background Technology

[0002] Winding is the first step in pre-weaving preparation. Through winding, the yarn is wound onto a yarn tube to form a large package. After the yarn is wound onto the yarn tube, it needs to be replaced. This involves cutting the connected yarn and then winding the yarn end onto a newly installed empty yarn tube. Previously, cutting the yarn at the yarn tube was done manually, which was very inefficient. To solve this problem, patent document CN 217298413U provides an automatic yarn cutting device for winding machines. This device includes a mounting frame, a yarn support plate, a first drive device, a yarn support groove, scissors, a second drive device, a yarn guide rod, and a third drive device. It achieves automatic yarn cutting, thereby improving the efficiency of yarn cutting and yarn tube replacement.

[0003] The aforementioned prior art requires a third drive device in conjunction with a connecting rod to control the yarn-pulling rod to rotate from horizontal to vertical, thereby bringing the yarn directly above the yarn-supporting groove. However, after long-term use, the wear at the connection point causes the clearance of the connecting rod to continuously increase, gradually reducing the accuracy of the yarn-pulling rod's rotation angle control. This results in the yarn-pulling rod failing to accurately pull the yarn directly above the yarn-supporting groove, causing angular deviations and preventing the yarn from accurately falling into the groove, thus affecting the yarn-cutting effect. Utility Model Content

[0004] This utility model mainly provides an automatic yarn cutting device for a winding machine, which solves the problem that in the existing technology using linkage transmission, after long-term use, the wear at the connection point causes the clearance of the linkage transmission to continuously increase, which gradually reduces the control accuracy of the yarn guide rod's rotation angle. As a result, the yarn guide rod cannot accurately guide the yarn to the top of the yarn guide groove, causing angular deviation and preventing the yarn from accurately falling into the yarn guide groove, thus affecting the yarn cutting effect.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An automatic thread-cutting device for a winding machine includes a mounting frame, on which a driving mechanism is mounted. A thread-picking frame is mounted at the output end of the driving mechanism, and the thread-picking frame rotates under the drive of the driving mechanism. A horizontal hook is mounted at the outer end of the thread-picking frame, and a pushing mechanism is mounted at the inner end of the thread-picking frame. A thread-pushing block is mounted at the output end of the pushing mechanism, and the thread-pushing block is displaced along the thread-picking frame under the drive of the pushing mechanism. A scissor mechanism for cutting the thread is mounted on the horizontal hook. The power source for the driving mechanism can be any existing technology, such as an electric motor, as long as it can drive the thread-picking frame to rotate. The power source for the pushing mechanism can be a telescopic cylinder, as long as it can drive the thread-pushing cylinder to move back and forth along the thread-picking frame, i.e., the displacement direction of the telescopic cylinder is parallel to the thread-picking frame. The scissor mechanism can be any existing technology, as long as it can cut the yarn. In use, the drive mechanism rotates the yarn guide frame, causing one side of the frame to press against the yarn and move it. A push mechanism then moves the push block, which, along with a horizontal hook, clamps the yarn. Finally, a scissor mechanism on the hook cuts the yarn. The mechanism of this application, with its horizontal hook, effectively prevents the yarn from detaching from the outer end of the yarn guide frame when it rotates, thus preventing the yarn from failing to move to the correct position. The push mechanism, located inside the yarn guide frame, rotates along with the push mechanism and its push block, ensuring the direction of movement is always parallel to the length of the yarn guide frame. This avoids the difficulty in accurately moving the yarn to the correct position, as seen in existing technologies, and guarantees the cutting effect. Simultaneously, the push block, driven by the push mechanism... The pusher block can move the yarn towards the horizontal hook, thereby clamping the yarn with the pusher block and the horizontal hook, effectively fixing the yarn position and preventing misalignment. This allows for better coordination with the subsequent cutting work of the scissors mechanism, further ensuring the cutting effect. At the same time, after the pusher block and the horizontal hook clamp and fix the yarn, their rotation radius is fixed, allowing the yarn to be driven to the required position more accurately. Furthermore, the method of clamping the yarn with the pusher block and the horizontal hook before using the scissors mechanism to cut the yarn maintains the height position of the yarn to be wound after the yarn is cut, thus cooperating with other components on the winding machine to clamp and fix the yarn.

[0007] Furthermore, the drive mechanism includes a motor mounted on the mounting bracket, and the output end of the motor is provided with a connecting platform. The inner end of the wire-picking frame is detachably connected to the connecting platform. This structure enables convenient assembly and disassembly of the wire-picking frame.

[0008] Furthermore, the yarn guide frame has a guide groove on the side corresponding to the yarn stop, and one side of the yarn pusher extends into the guide groove, with a V-shaped groove on the pusher. The horizontal hook has a boss that mates with the V-shaped groove. With this structure, when the yarn is driven by the yarn guide frame, it is located outside the direction of the guide groove on the yarn guide frame. Simultaneously, one side of the V-shaped groove extends into the guide groove, ensuring that the yarn remains within the guide range of the V-shaped groove when the yarn guide frame is in operation. This limits the yarn to the bottom of the V-shaped groove as the pusher moves towards the horizontal hook, providing a better limiting effect.

[0009] Furthermore, the scissor mechanism is positioned on the horizontal hook corresponding to the center of the V-groove. This structure ensures the scissor mechanism effectively cuts the yarn.

[0010] Furthermore, the inner wall of the guide groove is symmetrically provided with semi-sliding rods, and the pusher block has a sliding groove that cooperates with the semi-sliding rods. This structure enables the pusher block to be positioned and guided, further ensuring its accuracy.

[0011] Beneficial effects: The mechanism of this application, with its horizontal hook on the yarn guide frame, effectively prevents the yarn from detaching from the outer end of the frame when it is rotated by the drive mechanism, thus preventing the yarn from failing to move to the corresponding position. The push mechanism is located at the inner end of the yarn guide frame, ensuring that the push mechanism and the push block mounted on it rotate with the frame, guaranteeing that the direction of movement of the push mechanism and the push block remains parallel to the length direction of the yarn guide frame. This avoids the problem of the yarn not being accurately moved to the corresponding position, as seen in existing technologies, and ensures the yarn cutting effect. Simultaneously, the push block, driven by the push mechanism... Driven by the pusher, the yarn can be moved towards the horizontal hook, thereby clamping the yarn with the pusher block and the horizontal hook, effectively fixing the yarn position and avoiding misalignment. This better coordinates with the subsequent cutting work of the scissors mechanism, further ensuring the cutting effect. At the same time, after the pusher block and the horizontal hook clamp and fix the yarn, their rotation radius is fixed, which can more accurately drive the yarn to the required position. Furthermore, the method of clamping the yarn with the pusher block and the horizontal hook before using the scissors mechanism to cut the yarn can maintain the height position of the yarn to be wound after the yarn is cut, thus cooperating with other components on the winding machine to clamp and fix the yarn. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the mounting bracket in this embodiment, viewed from the front or oblique angle.

[0013] Figure 2 This is a reverse oblique view of the mounting bracket in this embodiment;

[0014] Figure 3 This is a bottom view of the mounting bracket in this embodiment;

[0015] Figure 4 This embodiment Figure 2 Enlarged diagram of A in the middle.

[0016] Reference numerals: 1. Mounting bracket; 2. Drive mechanism; 3. Wire puller; 4. Hook; 5. Push mechanism; 6. Wire pusher block; 7. Scissors mechanism; 8. Guide groove; 9. V-groove; 10. Boss; 11. Semi-sliding rod. Detailed Implementation

[0017] The following will provide a more detailed description of the technical solution of an automatic wire cutting device for a winding machine according to the present invention, with reference to the embodiments.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1 , Figure 2 , Figure 3As shown, an automatic wire cutting device for a winding machine according to this embodiment includes a mounting frame 1, a driving mechanism 2 on the mounting frame 1, a wire-picking frame 3 at the output end of the driving mechanism 2, the wire-picking frame 3 rotating under the drive of the driving mechanism 2; a horizontal hook 4 at the outer end of the wire-picking frame 3, a pushing mechanism 5 at the inner end of the wire-picking frame 3, a wire-pushing block 6 at the output end of the pushing mechanism 5, the wire-pushing block moving along the wire-picking frame 3 under the drive of the pushing mechanism 5; and a scissor mechanism 7 for cutting wire on the horizontal hook 4. The driving mechanism 2 includes a motor mounted on the mounting frame 1, a connecting platform at the output end of the motor, and the inner end of the wire-picking frame 3 detachably connected to the connecting platform. A guide groove 8 is provided on the wire-blocking side of the wire-picking frame 3, one side of the wire-pushing block 6 extends into the guide groove 8, and a V-groove 9 is provided on the wire-pushing block 6; and a boss 10 cooperating with the V-groove 9 is provided on the horizontal hook 4. The scissor mechanism 7 is positioned on the horizontal hook 4, corresponding to the center of the V-groove 9. A semi-sliding rod 11 is symmetrically arranged on the inner wall of the guide groove 8, and a sliding groove is provided on the pusher block 6 to cooperate with the semi-sliding rod 11. In use, the drive mechanism 2 drives the thread-picking frame 3 to rotate, thereby causing one side of the thread-picking frame 3 to move the yarn after it comes into contact with it. The pusher mechanism 5 then moves the pusher block 6, which, along with the horizontal hook 4, clamps the yarn. Finally, the scissor mechanism 7 on the horizontal hook 4 cuts the yarn. The mechanism of this application includes a horizontal hook 4 on the yarn guide 3, which effectively prevents the yarn from detaching from the outer end of the yarn guide 3 when the yarn guide 3 is rotated by the driving mechanism 2, thus preventing the yarn from failing to move to the corresponding position. The pushing mechanism 5 is located at the inner end of the yarn guide 3, ensuring that the pushing mechanism 5 and the pusher block 6 mounted on it rotate with the yarn guide 3. This guarantees that the direction in which the pushing mechanism 5 drives the pusher block 6 remains parallel to the length direction of the yarn guide 3, avoiding the difficulty in accurately moving the yarn to the corresponding position as seen in the prior art, and ensuring the yarn cutting effect. Simultaneously, the pusher block 6, driven by the pushing mechanism 5... Driven by the pusher, the yarn can be moved towards the horizontal hook 4, thereby using the pusher block 6 and the horizontal hook 4 to clamp the yarn, effectively fixing the yarn position and avoiding misalignment. This better cooperates with the subsequent cutting work of the scissor mechanism 7, further ensuring the cutting effect. At the same time, after the pusher block 6 and the horizontal hook 4 clamp and fix the yarn, their rotation radius is fixed, which can more accurately drive the yarn to the required position. Furthermore, the method of using the pusher block 6 and the horizontal hook 4 to clamp the yarn before using the scissor mechanism 7 to cut the yarn can maintain the height position of the yarn to be wound after the yarn is cut, thus cooperating with other components on the winding machine to clamp and fix the yarn.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic wire cutting device for a winding machine, characterized in that: The device includes a mounting frame, on which a drive mechanism is mounted. A wire-picking frame is mounted at the output end of the drive mechanism, and the wire-picking frame rotates under the drive of the drive mechanism. A horizontal hook is mounted at the outer end of the wire-picking frame, and a pushing mechanism is mounted at the inner end of the wire-picking frame. A wire-pushing block is mounted at the output end of the pushing mechanism, and the wire-pushing block moves along the wire-picking frame under the drive of the pushing mechanism. A scissor mechanism for cutting wires is mounted on the horizontal hook.

2. The automatic wire cutting device for a winding machine according to claim 1, characterized in that: The drive mechanism includes a motor mounted on the mounting frame, and the output end of the motor is provided with a connecting platform. The inner end of the wire-pulling frame is detachably connected to the connecting platform.

3. The automatic wire cutting device for a winding machine according to claim 1, characterized in that: The wire puller has a guide groove on one side corresponding to the wire stop, and one side of the wire pusher extends into the guide groove, and the wire pusher has a V-shaped groove; the horizontal hook has a boss that matches the V-shaped groove.

4. The automatic wire cutting device for a winding machine according to claim 3, characterized in that: The scissor mechanism is positioned on the horizontal hook corresponding to the center of the V-groove.

5. The automatic wire cutting device for a winding machine according to claim 3, characterized in that: The inner wall of the guide groove is symmetrically provided with semi-sliding rods, and the pusher block is provided with a sliding groove that matches the semi-sliding rods.

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