Rail spring pre-tightening device
By designing a track spring pretension device, the elastic force of the spring makes the carrier tape close to the guide rail, solving the dimensional deviation and offset of the carrier tape in the guide rail due to changes in the leather width, and improving the stability and applicability of the production process.
Patent Information
- Application Number
- CN202422188708.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-06
AI Technical Summary
During the production process of flatbed machines, the carrier belt becomes larger due to changes in the leather width in the guide rail, resulting in deviation and offset of the carrier belt size, reducing the stability of the production process.
A rail spring pretension device is designed, including a guide rail, a pretension device and an adjustment structure. The preloading device uses the elastic force of the spring to push the preloading bearing tightly to the guide rail through the coordination of the sliding seat, the spring and the preloading bearing. The adjustment structure adjusts the elastic force of the spring through the hexagonal nut and the threaded rod.
It effectively prevents the impact of leather width changes on the size of the carrier tape, improves the stability of the carrier tape, and adapts to carrier tapes of different weights through the adjustment structure, improving the applicability of the device.
Smart Images
Figure CN223000469U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of carrier tape forming, and particularly relates to an orbital spring pre-tightening device. Background Technique
[0002] When a flat machine produces a carrier tape, a guide rail is used to limit the carrier tape. Since there will be slight fluctuations in the width of the carrier tape leather, in order to enable the carrier tape to pass smoothly in the guide rail, the width of the guide rail is usually made larger than the width of the carrier tape during machine adjustment.
[0003] However, when the width of a certain roll of leather is small, the clearance of the carrier tape in the guide rail becomes larger, which easily causes the size deviation of the carrier tape to become larger, resulting in the deviation of the carrier tape during the production process and reducing the stability. Therefore, an orbital spring pre-tightening device is urgently needed to solve the above problems. Content of the Utility Model
[0004] In order to overcome the above technical problems, the purpose of the utility model is to provide an orbital spring pre-tightening device to solve the problem that when the width of a certain roll of leather is small, the clearance of the carrier tape in the guide rail becomes larger, which easily causes the size deviation of the carrier tape to become larger, resulting in the deviation of the carrier tape during the production process and reducing the stability as mentioned in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: an orbital spring pre-tightening device, including a first guide rail, a second guide rail, a pre-tightening device, an adjusting structure, a cover plate and a carrier tape. The front side of the first guide rail is slidably connected to the carrier tape, and the rear side of the second guide rail is slidably connected to the carrier tape. The pre-tightening device includes a sliding seat, the rear end of the sliding seat is rotatably connected to a pre-tightening bearing, a spring is arranged at the front end of the sliding seat, the sliding seat is slidably connected to the second guide rail. The adjusting structure includes a hexagonal nut, the rear side of the hexagonal nut is fixedly connected to a threaded rod, the threaded rod is rotatably connected to the second guide rail, the threaded rod is threadedly connected to a support rod, the rear side of the support rod is fixedly connected to an adjusting seat, and the support rod and the adjusting seat are slidably connected to the second guide rail.
[0006] Preferably, a support frame is fixedly connected to the rear side of the sliding seat, and a fixing rod is fixedly connected to the top of the support frame.
[0007] Preferably, the fixing rod is rotatably connected to the pre-tightening bearing, and a first fixing bolt is threadedly connected to the top of the fixing rod.
[0008] Preferably, one end of the spring abuts against the rear side of the adjusting seat, and the other end of the spring abuts against the front side of the sliding seat.
[0009] Preferably, sliding grooves are formed at both the left and right ends of the second guide rail, and the sliding grooves are in a Chinese character 'zhong' shape.
[0010] Preferably, the front end of the sliding groove is slidably connected to an adjusting seat, the sliding seat slides back and forth at the middle position of the sliding groove, and the support frame and the pre-tightening bearing slide back and forth at the rear end of the sliding groove.
[0011] Preferably, the pre-tightening bearing abuts against the front side of the carrier tape.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. The track spring pre-tightening device is provided with a pre-tightening device. When the width of a certain roll of leather material is small, the clearance between the carrier tape between the first guide rail and the second guide rail becomes larger. At this time, under the elastic force of the spring, the spring pushes the pre-tightening bearing and the sliding seat backward, so that the pre-tightening bearing always pushes the carrier tape, making the carrier tape closely attached to the front side of the first guide rail. The carrier tape will drive the pre-tightening bearing to rotate. Through the pre-tightening device, the pre-tightening bearing can always push the carrier tape, making the carrier tape closely attached to the front side of the first guide rail, thereby effectively preventing the influence of the change in the width of the leather material on the size value of the carrier tape and improving the stability of the product.
[0014] 2. The track spring pre-tightening device is provided with an adjusting structure. When it is necessary to adjust the elastic force of the spring to prevent the pre-tightening bearing from squeezing the carrier tape due to excessive elastic force of the spring, resulting in damage to the carrier tape, or the elastic force of the spring is too small to make the pre-tightening bearing unable to push the carrier tape, turn the hexagonal nut with a wrench, so that the hexagonal nut drives the threaded rod to rotate, and the threaded rod drives the support rod and the adjusting seat to move back and forth, thereby the elastic force of the spring can be adjusted. Through the adjusting structure, the elastic force of the spring can be adjusted, which is convenient for adapting to carrier tapes of different weights and improves the applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a front three-dimensional schematic diagram of the present utility model;
[0016] Figure 2 is a top cross-sectional schematic diagram of the present utility model;
[0017] Figure 3 is a schematic diagram of the cover plate of the present utility model;
[0018] Figure 4 is a top cross-sectional schematic diagram of the second guide rail of the present utility model;
[0019] Figure 5 is an exploded structural schematic diagram of the pre-tightening structure and the adjusting structure of the present utility model.
[0020] In the figure: 1. First guide rail; 2. Second guide rail; 21. Sliding groove; 3. Pre-tightening device; 31. Pre-tightening bearing; 32. Sliding seat; 321. Support frame; 322. Fixed rod; 323. First fixing bolt; 33. Spring; 4. Adjusting structure; 41. Hexagonal nut; 42. Threaded rod; 43. Support rod; 44. Adjusting seat; 5. Cover plate; 51. Second fixing bolt; 6. Carrier tape. Detailed implementation mode
[0021] Next, in combination with the drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.
[0022] Please refer to Figures 1-5 , an embodiment provided by the present utility model: a track spring pre-tightening device, including a first guide rail 1, a second guide rail 2, a pre-tightening device 3, an adjusting structure 4, a cover plate 5 and a carrier tape 6. The front side of the first guide rail 1 is slidably connected to the carrier tape 6, and the rear side of the second guide rail 2 is slidably connected to the carrier tape 6. The carrier tape 6 is limited by the first guide rail 1 and the second guide rail 2, and the carrier tape 6 can pass smoothly between the first guide rail 1 and the second guide rail 2. The pre-tightening device 3 includes a sliding seat 32. The rear end of the sliding seat 32 is rotatably connected to a pre-tightening bearing 31. A spring 33 is arranged at the front end of the sliding seat 32. The sliding seat 32 is slidably connected to the second guide rail 2. The adjusting structure 4 includes a hexagon nut 41. The rear side of the hexagon nut 41 is fixedly connected to a threaded rod 42. The threaded rod 42 is rotatably connected to the second guide rail 2. The threaded rod 42 is threadedly connected to a support rod 43. The rear side of the support rod 43 is fixedly connected to an adjusting seat 44. The support rod 43 and the adjusting seat 44 are slidably connected to the second guide rail 2. By turning the hexagon nut 41 with a wrench, the hexagon nut 41 drives the threaded rod 42 to rotate, and the threaded rod 42 drives the support rod 43 and the adjusting seat 44 to move back and forth, so as to adjust the elastic force of the spring 33.
[0023] Furthermore, the rear side of the sliding seat 32 is fixedly connected to a support frame 321, and the top of the support frame 321 is fixedly connected to a fixing rod 322.
[0024] Furthermore, the fixing rod 322 is rotatably connected to the pre-tightening bearing 31, and a first fixing bolt 323 is threadedly connected to the top of the fixing rod 322.
[0025] Furthermore, one end of the spring 33 abuts against the rear side of the adjusting seat 44, and the other end of the spring 33 abuts against the front side of the sliding seat 32. Under the elastic force of the spring 33, the spring 33 pushes the pre-tightening bearing 31 and the sliding seat 32 backward, so that the pre-tightening bearing 31 always pushes the carrier tape 6, making the carrier tape 6 closely attached to the front side of the first guide rail 1.
[0026] Furthermore, sliding grooves 21 are provided at both the left and right ends of the second guide rail 2, and the sliding grooves 21 are in a middle shape.
[0027] Further, the front end of the sliding groove 21 is slidably connected to the adjusting seat 44, the sliding seat 32 slides back and forth at the middle position of the sliding groove 21, and the support frame 321 and the pre-tightening bearing 31 slide back and forth at the rear end of the sliding groove 21.
[0028] Further, the pre-tightening bearing 31 abuts against the front side of the carrier tape 6, and the carrier tape 6 drives the pre-tightening bearing 31 to rotate.
[0029] Working principle:
[0030] During use, the carrier tape 6 is limited by the first guide rail 1 and the second guide rail 2, and the carrier tape 6 can pass smoothly between the first guide rail 1 and the second guide rail 2. When the width of a certain roll of leather material is small, the clearance between the carrier tape 6 and the first guide rail 1 and the second guide rail 2 becomes larger. At this time, under the elastic force of the spring 33, the spring 33 pushes the pre-tightening bearing 31 and the sliding seat 32 backward, so that the pre-tightening bearing 31 always pushes the carrier tape 6, making the carrier tape 6 closely adhere to the front side of the first guide rail 1. The carrier tape 6 drives the pre-tightening bearing 31 to rotate. Through the pre-tightening device 3, the pre-tightening bearing 31 can always push the carrier tape 6, making the carrier tape 6 closely adhere to the front side of the first guide rail 1, thereby effectively preventing the influence of the change in the width of the leather material on the dimensional value of the carrier tape 6 and improving the stability of the product. When it is necessary to adjust the elastic force of the spring 33 to prevent the elastic force of the spring 33 from being too large, causing the pre-tightening bearing 31 to squeeze the carrier tape 6 and damage the carrier tape 6, or the elastic force of the spring 33 is too small, causing the pre-tightening bearing 31 to be unable to push the carrier tape 6, turn the hexagonal nut 41 with a wrench, so that the hexagonal nut 41 drives the threaded rod 42 to rotate, and the threaded rod 42 drives the support rod 43 and the adjusting seat 44 to move back and forth, thereby adjusting the elastic force of the spring 33. Through the adjusting structure 4, the elastic force of the spring 33 can be adjusted, which is convenient for adapting to carrier tapes of different weights and improves the applicability.
[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. A track spring pre-tensioning device, comprising a guide rail 1 (1), a guide rail 2 (2), a pre-tensioning device (3), an adjustment structure (4), a cover plate (5) and a carrier belt (6), characterized in that: The front side of the first guide rail (1) is slidably connected to the carrier tape (6), the rear side of the second guide rail (2) is slidably connected to the carrier tape (6), the pre-tightening device (3) includes a sliding seat (32), the rear end of the sliding seat (32) is rotatably connected to a pre-tightening bearing (31), a spring (33) is arranged at the front end of the sliding seat (32), the sliding seat (32) is slidably connected to the second guide rail (2), the adjusting structure (4) includes a hexagonal nut (41), the rear side of the hexagonal nut (41) is fixedly connected to a threaded rod (42), the threaded rod (42) is rotatably connected to the second guide rail (2), the threaded rod (42) is threadedly connected to a support rod (43), the rear side of the support rod (43) is fixedly connected to an adjusting seat (44), and the support rod (43) and the adjusting seat (44) are slidably connected to the second guide rail (2).
2. The rail spring pre-tensioning device according to claim 1, characterized in that: A support frame (321) is fixedly connected to the rear side of the sliding seat (32), and a fixing rod (322) is fixedly connected to the top of the support frame (321).
3. The rail spring pre-tensioning device according to claim 2, characterized in that: The fixing rod (322) is rotatably connected to the pre-tightening bearing (31), and a first fixing bolt (323) is threadedly connected to the top of the fixing rod (322).
4. The rail spring pre-tensioning device according to claim 1, characterized in that: One end of the spring (33) abuts against the rear side of the adjusting seat (44), and the other end of the spring (33) abuts against the front side of the sliding seat (32).
5. The rail spring pre-tensioning device according to claim 2, characterized in that: Chute grooves (21) are formed at both the left and right ends of the second guide rail (2), and the chute grooves (21) are in a Chinese character 'zhong' shape.
6. The rail spring pre-tensioning device according to claim 5, characterized in that: The front end of the chute groove (21) is slidably connected to the adjusting seat (44), the sliding seat (32) slides back and forth at the middle position of the chute groove (21), and the support frame (321) and the pre-tightening bearing (31) slide back and forth at the rear end of the chute groove (21).
7. The rail spring pre-tensioning device according to claim 1, characterized in that: The pre-tightening bearing (31) abuts against the front side of the carrier tape (6).