Roller adjusting structure of plastic wire drawing machine

Abstract

The utility model relates to the technical field of plastic wire drawing machines, in particular to a plastic wire drawing machine roller adjusting structure which comprises a support, a mounting shaft transversely and rotatably penetrates through the support, a limiting ring is fixedly connected to the outer side wall of the mounting shaft in a sleeved mode, a groove is formed in the upper surface of the mounting shaft, and a fixing block is fixedly installed on the inner bottom face of the groove through a first spring. The fixing block is in sliding fit with the inner wall of the groove, a rolling shaft movably connected to the outer side wall of the mounting shaft in a sleeving mode is arranged between the fixing block and the limiting ring in a sliding fit mode, a limiting strip movably penetrating through the rolling shaft is transversely and fixedly mounted on the outer side wall of the mounting shaft, and the end of the mounting shaft is fixedly connected with a driven gear and a ratchet wheel in a sleeving mode; the tension of the rolling shaft can be changed, and meanwhile the rolling shaft is more convenient to replace and adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic wire drawing machines, in particular to a roller adjustment structure of a plastic wire drawing machine. Background Art

[0002] Plastic processing is the general term for various processes that convert synthetic resins or plastics into plastic products. It is a relatively large production department in the plastic industry. Plastic processing generally includes plastic batching, molding, machining, joining, finishing, and assembly, etc.

[0003] However, in the prior art, the rollers of plastic wire drawing machines are fixedly installed on the machine by using components such as screws, which makes the disassembly and installation of the rollers rather cumbersome, and it takes a lot of time to replace the rollers, which is not conducive to the replacement and adjustment of the rollers. For this reason, we propose a roller adjustment structure of a plastic wire drawing machine. Summary of the Utility Model

[0004] The utility model provides a roller adjustment structure of a plastic wire drawing machine, which solves the above-mentioned technical problems.

[0005] The solution of the utility model to the above technical problems is as follows: A roller adjustment structure of a plastic wire drawing machine includes a bracket, a mounting shaft is horizontally rotatably penetrated through the bracket, a limiting ring is fixedly sleeved on the outer side wall of the mounting shaft, a groove is opened on the upper surface of the mounting shaft, a fixing block is fixedly installed on the inner bottom surface of the groove through a first spring, the fixing block is slidably matched with the inner wall of the groove, a roller is slidably sleeved on the outer side wall of the mounting shaft between the fixing block and the limiting ring, a limiting strip is horizontally fixedly installed on the outer side wall of the mounting shaft and movably penetrates through the roller, a driven gear and a ratchet wheel are fixedly sleeved at the end of the mounting shaft, the driven gear is connected with an adjustment driving mechanism, and the ratchet wheel is connected with a limiting mechanism.

[0006] Preferably, the adjustment driving mechanism includes a motor horizontally fixedly installed on the outer side wall of the bracket, a driving gear is fixedly installed on the output shaft of the motor, and the driving gear is meshed and connected with the driven gear.

[0007] Preferably, the limiting mechanism includes an auxiliary rod rotatably installed obliquely on the outer side wall of the bracket, the end of the auxiliary rod abuts against the tooth groove of the ratchet wheel, a limiting block fixedly installed on the outer side wall of the bracket is arranged at one end of the lower surface of the auxiliary rod far away from the ratchet wheel, and an elastic abutting mechanism is arranged on the upper surface of the auxiliary rod.

[0008] Preferably, the elastic abutting mechanism includes a mounting block fixedly installed on the outer side wall of the bracket, a telescopic rod is fixedly installed on the lower surface of the mounting block, a abutting block is fixedly installed at the end of the telescopic rod, the abutting block is slidably matched with the upper surface of the auxiliary rod, and a second spring is movably sleeved on the outer side wall of the telescopic rod.

[0009] Preferably, a protection frame is fixedly installed on the outer side wall of the bracket, and the protection frame surrounds the motor.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. By providing a mounting shaft, the roller is sleeved on the mounting shaft and limited by a limiting strip, so that the roller can rotate synchronously with the mounting shaft. Moreover, the roller is limited and fixed by the cooperation of a fixing block and a limiting ring. The fixing block is connected to the groove through a first spring. During installation and disassembly, the fixing block can be directly pressed back into the groove, making the adjustment and replacement of the roller more rapid and convenient;

[0012] 2. By providing a motor and cooperating with components such as a driven gear, the rotation of the roller can be indirectly driven to realize the adjustment and control of the pulling force of the roller. A ratchet is provided on the outer surface of the mounting shaft, and components such as an auxiliary rod are cooperated for one-way limitation to prevent the roller from reversing, making it more stable.

[0013] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it in accordance with the content of the specification, the following takes the preferred embodiment of the present utility model and combines with the attached drawings to describe in detail as follows. The specific implementation manner of the present utility model is given in detail by the following embodiments and their attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The attached drawings described herein are used to provide a further understanding of the present utility model, form a part of this application, and the schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0015] Figure 1 is a schematic structural diagram of a roller adjustment structure of a plastic wire drawing machine proposed by the present utility model;

[0016] Figure 2 is a schematic structural diagram of a bracket of a roller adjustment structure of a plastic wire drawing machine proposed by the present utility model;

[0017] Figure 3 is a schematic structural diagram of a mounting shaft of a roller adjustment structure of a plastic wire drawing machine proposed by the present utility model;

[0018] Figure 4 is a roller adjustment structure of a plastic wire drawing machine proposed by the present utility model Figure 2 magnified view at A in;

[0019] Figure 5 is a roller adjustment structure of a plastic wire drawing machine proposed by the present utility model Figure 3 magnified view at B in.

[0020] Legend description:

[0021] 1. Bracket; 2. Mounting shaft; 3. Groove; 4. First spring; 5. Fixed block; 6. Roller; 7. Limit strip; 8. Driven gear; 9. Ratchet; 10. Motor; 11. Driving gear; 12. Auxiliary rod; 13. Limit block; 14. Telescopic rod; 15. Tightening block; 16. Second spring; 17. Protection frame. Specific implementation mode

[0022] The following combines the attached Figures 1-5 The principles and features of the present invention will be described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention will be described more specifically by way of example with reference to the accompanying drawings. According to the following description and claims, the advantages and features of the present invention will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present invention.

[0023] Embodiment 1

[0024] As Figures 1-5 shown, a roller adjustment structure of a plastic wire drawing machine according to the present invention includes a bracket 1. A protection frame 17 is fixedly installed on the outer side wall of the bracket 1. The protection frame 17 surrounds the motor 10. The protection frame 17 surrounds and protects components such as the motor 10, and at the same time prevents accidental touch and improves safety. The mounting shaft 2 passes through the bracket 1 horizontally and rotatably. A limit ring is fixedly sleeved on the outer side wall of the mounting shaft 2. A groove 3 is opened on the upper surface of the mounting shaft. The inner bottom surface of the groove 3 is fixedly installed with a fixed block 5 through a first spring 4. The fixed block 5 cooperates with the limit ring to limit and fix the roller 6. Pressing the fixed block 5 can cancel the limit fixation, making the replacement and adjustment of the roller 6 more convenient. The fixed block 5 is slidably matched with the inner wall of the groove 3. A roller 6 that is movably sleeved on the outer side wall of the mounting shaft 2 is slidably matched between the fixed block 5 and the limit ring. A limit strip 7 that movably penetrates the roller 6 is horizontally fixedly installed on the outer side wall of the mounting shaft 2. The end of the mounting shaft 2 is fixedly sleeved with a driven gear 8 and a ratchet 9. The driven gear 8 is connected with an adjustment drive mechanism. The adjustment drive mechanism includes a motor 10 horizontally fixedly installed on the outer side wall of the bracket 1. The output shaft of the motor 10 is fixedly installed with a driving gear 11. The driving gear 11 is meshed and connected with the driven gear 8. The ratchet 9 is connected with a limit mechanism. The device indirectly drives the roller 6 to rotate by setting the motor 10 in cooperation with components such as the driving gear 11, so as to change the pulling force intensity of the adjustment roller on the wire drawing. At the same time, the ratchet 9 is set in cooperation with components such as the auxiliary rod 12 for limit fixation to prevent the roller 6 from reversing.

[0025] Embodiment 2

[0026] As Figure 2 . 3As shown in FIGS. 4, the limiting mechanism includes an auxiliary rod 12 which is tiltedly and rotatably installed on the outer side wall of the bracket 1. The end of the auxiliary rod 12 abuts against the tooth groove of the ratchet wheel 9. At one end of the lower surface of the auxiliary rod 12 away from the ratchet wheel 9, a limiting block 13 fixedly installed on the outer side wall of the bracket 1 is provided. An elastic pressing mechanism is arranged on the upper surface of the auxiliary rod 12. The elastic pressing mechanism includes a mounting block fixedly installed on the outer side wall of the bracket 1. A telescopic rod 14 is fixedly installed on the lower surface of the mounting block. A pressing block 15 is fixedly installed at the end of the telescopic rod 14. The pressing block 15 is slidably matched with the upper surface of the auxiliary rod 12. A second spring 16 is movably sleeved on the outer side wall of the telescopic rod 14. The telescopic rod 14 cooperates with the second spring 16 to push the pressing block 15 to move downward. By using the pressing block 15, it is ensured that the auxiliary rod 12 is pressed tightly, so that after the ratchet wheel 9 rotates through a unit angle, the auxiliary rod 12 can rotate and reset, ensuring the realization of the device function. The limiting block 13 is provided to limit the auxiliary rod 12, so that the auxiliary rod 12 can only rotate counterclockwise, allowing the ratchet wheel 9 to rotate unidirectionally through, preventing the ratchet wheel 9 from flipping, and indirectly preventing the roller 6 from rotating reversely.

[0027] Working principle:

[0028] When the roller 6 needs to be adjusted, the control motor 10 drives the driving gear 11 to rotate and move an angle. The driving gear 11 indirectly drives the mounting shaft 2 to rotate through the transmission of the driven gear 8. The roller 6 rotates synchronously with the mounting shaft 2 to realize the adjustment of the pulling force of the roller 6. The ratchet wheel 9 on the outer surface of the mounting shaft 2 rotates synchronously with the mounting shaft 2. The ratchet wheel 9 presses the auxiliary rod 12, causing the auxiliary rod 12 to rotate counterclockwise against the resistance of the second spring 16. The ratchet wheel 9 rotates through a certain angle. And when the tooth of the ratchet wheel 9 rotates through, the second spring 16 pushes the pressing block 15 to re-abut against the telescopic rod 14, causing the auxiliary rod 12 to reset, ensuring the abutting contact between the auxiliary rod 12 and the ratchet wheel 9.

[0029] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in any form; any person skilled in the art can smoothly implement the present invention according to the description in the specification drawings and the above description; however, any slight changes, modifications and equivalent changes made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments according to the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A roller adjustment structure for a plastic wire drawing machine, comprising a bracket (1), characterized in that: The bracket (1) is laterally rotatable and penetrates a mounting shaft (2); the outer wall of the mounting shaft (2) is fixedly sleeved with a limiting ring; the upper surface of the mounting shaft is provided with a groove (3); the inner bottom surface of the groove (3) is fixedly mounted with a fixing block (5) through a first spring (4); the fixing block (5) is slidably matched with the inner wall of the groove (3); a roller (6) movably sleeved on the outer wall of the mounting shaft (2) is slidably matched between the fixing block (5) and the limiting ring; a limiting strip (7) movably penetrating the roller (6) is laterally fixedly mounted on the outer wall of the mounting shaft (2); a driven gear (8) and a ratchet (9) are fixedly sleeved at the end of the mounting shaft (2); the driven gear (8) is connected to an adjustment drive mechanism; and the ratchet (9) is connected to the limiting mechanism.

2. A roller adjustment structure for a plastic wire drawing machine according to claim 1, characterized in that: The adjustment drive mechanism comprises a motor (10) which is fixedly mounted laterally on the outer side wall of the bracket (1); a driving gear (11) is fixedly mounted on the output shaft of the motor (10); and the driving gear (11) is meshingly connected with a driven gear (8).

3. A roller adjustment structure for a plastic wire drawing machine according to claim 1, characterized in that: The limiting mechanism comprises an auxiliary rod (12) which is mounted on the outer wall of the bracket (1) in an inclined and rotatable manner, the end of the auxiliary rod (12) being in contact with the tooth groove of the ratchet wheel (9), a limiting block (13) which is fixedly mounted on the outer wall of the bracket (1) is provided on the lower surface of the auxiliary rod (12) at one end away from the ratchet wheel (9), and an elastic pressing mechanism is provided on the upper surface of the auxiliary rod (12).

4. A roller adjustment structure for a plastic wire drawing machine according to claim 3, characterized in that: The elastic clamping mechanism comprises a mounting block fixedly mounted on the outer wall of the bracket (1), a telescopic rod (14) being fixedly mounted on the lower surface of the mounting block, a clamping block (15) being fixedly mounted on the end of the telescopic rod (14), the clamping block (15) being slidably matched with the upper surface of the auxiliary rod (12), and a second spring (16) being movably sleeved on the outer wall of the telescopic rod (14).

5. The roller adjustment structure of a plastic wire drawing machine according to claim 2, characterized in that: A protective frame (17) is fixedly mounted on the outer side wall of the bracket (1), and the protective frame (17) surrounds the motor (10).

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