Constant-tension pay-off device

Abstract

The utility model belongs to the field of constant-tension pay-off devices, and particularly relates to a constant-tension pay-off device which comprises a device body. Threading rings are also arranged on the two sides of the top end in the device body, the top end in the device body is fixedly connected with the top ends of the threading rings, and an adjustable protection tension mechanism is arranged in the device body. The adjustable protection tension mechanism comprises first fixing blocks, the first fixing blocks are arranged at the front end and the rear end of the bottom end of the device body, and the bottom ends of the first fixing blocks are fixedly connected with the top end of the device body. Through the design of the adjustable tension protection mechanism, the function of conveniently adjusting tension is achieved, and the problems that an existing device is not provided with an assembly capable of being used for adjusting the tension, the tension cannot be adjusted according to site conditions in the using process, consequently, the device cannot adapt to different wires, and limitation is large in the using process are solved. And the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the field of constant-tension wire laying devices, and specifically relates to a constant-tension wire laying device. Background Technique

[0002] Constant-tension wire laying devices are mainly applied to railway and electrification construction. During catenary wire laying operations, a certain degree of tension must be maintained throughout the wire laying process.

[0003] A conventional constant-tension wire laying device can specifically refer to a constant-tension double-active wire laying device based on a cable extruder with the application number: CN202122581121.8, which includes an inverter, a wire laying mechanism, a potentiometer, and a frame. The wire laying mechanism includes a motor, and the motor is signal-connected to the potentiometer and the inverter; a fixed wheel and a swing rod are pin-connected on the frame, and a moving wheel is rotatably connected to the swing rod. The wire harness of the wire laying mechanism sequentially winds around the fixed wheel and the moving wheel and exits from the fixed wheel. This application has a simple structure, low production and manufacturing costs, is convenient to operate and use, can automatically control the wire laying speed with high precision, thus ensuring uniform speed, and further ensuring constant tension. When applied to the production and manufacturing of cable plastic copper wires, it effectively prevents the breakdown of the insulating layer during the insulation extrusion process of cable plastic copper wires, improves the quality stability of products, reduces manufacturing costs, and improves production efficiency;

[0004] The above-mentioned device does not have a component for adjusting tension. When in use, the tension cannot be adjusted according to the on-site situation, resulting in the inability to adapt to different wire materials and having great limitations in use. Therefore, a constant-tension wire laying device is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art, for the problem that the existing device does not have a component for adjusting tension, and when in use, the tension cannot be adjusted according to the on-site situation, resulting in the inability to adapt to different wire materials and having great limitations in use, the utility model proposes a constant-tension wire laying device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: A constant-tension wire laying device of the utility model includes a device main body; on both sides of the top end inside the device main body, threading coils are also provided, and the top end inside the device main body is fixedly connected to the top ends of the threading coils. An adjustable protection tension mechanism is arranged inside the device main body;

[0007] The adjustable protection tension mechanism includes a first fixing block, which is arranged at the front and rear ends of the bottom end of the device main body, and the bottom end of the first fixing block is fixedly connected to the top end of the device main body. The side end of the first fixing block at the front end of the device main body is fixedly connected to the motor. The rear end of the motor passes through the side end of the first fixing block and is fixedly connected to the front end of the first threaded rod. The rear end of the first threaded rod passes through the side end of the first fixing block at the rear end of the device main body and is fixedly connected to the front end of the first transmission block. One end of a transmission belt is sleeved outside the first transmission block, and the first transmission block is in transmission connection with the transmission belt.

[0008] Preferably, the other end of the transmission belt is sleeved outside the second transmission block, and the transmission belt is in transmission connection with the second transmission block. Second fixing blocks are also arranged at the front and rear ends of the top end inside the device main body, and the top end inside the device main body is fixedly connected to the top ends of the second fixing blocks. One side of the second fixing block is sleeved outside the front end of the rotating block, and the second fixing block is rotatably connected to the rotating block. The rear end of the rotating block is fixedly connected to the front end of the second threaded rod. The rear end of the second threaded rod passes through the side end of the second fixing block at the rear end of the device main body and is fixedly connected to the front end of the second transmission block.

[0009] Preferably, moving blocks are also sleeved at both ends outside the first threaded rod and the second threaded rod, and the first threaded rod and the second threaded rod are also threadedly connected to the moving blocks. One side of the moving block is fixedly connected to one side of the third fixing block. The third fixing block is sleeved outside the second guiding rod, and the third fixing block is slidably connected to the second guiding rod. Fourth fixing blocks are also arranged at the front and rear ends of the second guiding rod, and the second guiding rod is fixedly connected to the side ends of the fourth fixing blocks. The bottom ends of the fourth fixing blocks are fixedly connected to the device main body.

[0010] Preferably, the top end of the moving block is fixedly connected to the bottom end of the first rotating seat. One end of a lifting rod is sleeved inside the first rotating seat, and the first rotating seat is rotatably connected to the lifting rod. The other end of the lifting rod is sleeved inside the second rotating seat, and the lifting rod is rotatably connected to the second rotating seat. The top end of the second rotating seat is fixedly connected to the bottom end of the fixed plate.

[0011] Preferably, reset springs are also arranged on both sides of the top end of the second transmission block. The bottom ends of the reset springs are fixedly connected to the top end of the fixed plate, and the top ends of the reset springs are fixedly connected to the bottom end of the moving plate. First guiding rods are also arranged on both sides of the top end of the fixed plate near the edge, and the top end of the fixed plate is fixedly connected to the bottom ends of the first guiding rods. The moving plate is sleeved outside the first guiding rods, and the first guiding rods are slidably connected to the moving plate.

[0012] Preferably, the top end of the moving plate is fixedly connected to the bottom end of the third rotating seat. A wire roller is sleeved inside the third rotating seat at a position near the upper part, and the third rotating seat is rotatably connected to the wire roller.

[0013] The advantages of the present utility model are as follows:

[0014] 1. Through the structural design of the adjustable protection tension mechanism of the present utility model, the function of facilitating the adjustment of tension is realized, solving the problem that the existing device does not have a component for adjusting tension. When in use, the tension cannot be adjusted according to the on-site situation, resulting in the inability to adapt to different wire materials and a large limitation in use, and improving the applicability.

[0015] 2. Through the structural design of the adjustable protection tension mechanism of the present utility model, the function of protecting the wire material is realized, solving the problem that the existing device does not have a component for protecting the wire material. When in use, if the applied tension is too large, it will damage the wire material, and in severe cases, the wire material is extremely likely to break, and improving the protection of the wire material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 It is a partial cross-sectional structural schematic diagram of the present utility model;

[0019] Figure 3 It is of the present utility model Figure 1 The enlarged schematic diagram structure at A in it;

[0020] Figure 4 It is of the present utility model Figure 2 The enlarged schematic diagram structure at B in it;

[0021] Figure 5 It is of the present utility model Figure 2 The structural schematic diagram of the enlarged schematic diagram at C in it.

[0022] In the figure: 1, device main body; 2, threading coil; 10, first fixing block; 11, motor; 12, first threaded rod; 13, first transmission block; 14, transmission belt; 15, second transmission block; 16, second fixing block; 17, rotating block; 18, second threaded rod; 19, moving block; 20, third fixing block; 21, fourth fixing block; 22, first rotating seat; 23, lifting rod; 24, second rotating seat; 25, fixing plate; 26, return spring; 27, moving plate; 28, first guide rod; 29, third rotating seat; 30, wire roller; 31, second guide rod. Detailed implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 5 As shown, a constant-tension wire-releasing device includes a device main body 1; threading coils 2 are also provided on both sides of the inner top end of the device main body 1, and the inner top end of the device main body 1 is welded to the top end of the threading coil 2. An adjustable protection tension mechanism is provided inside the device main body 1;

[0025] The adjustable protection tension mechanism includes a first fixing block 10. The first fixing block 10 is provided at the front and rear ends of the bottom end of the device main body 1, and the bottom end of the first fixing block 10 is welded to the top end of the device main body 1. The side end of the first fixing block 10 at the front end of the device main body 1 is welded to the motor 11. The rear end of the motor 11 passes through the side end of the first fixing block 10 and is welded to the front end of the first threaded rod 12. The rear end of the first threaded rod 12 passes through the side end of the first fixing block 10 at the rear end of the device main body 1 and is welded to the front end of the first transmission block 13. One end of a transmission belt 14 is sleeved outside the first transmission block 13, and the first transmission block 13 is in transmission connection with the transmission belt 14. The first transmission block 13 is circularly designed;

[0026] During operation, first pass the wire through the inside of the threading coils 2 on both sides inside the device main body 1, and then start the motor 11 at the side end of the first fixing block 10 at the bottom end of the device main body 1 to drive the first threaded rod 12 to rotate. When the first threaded rod 12 rotates, it drives the first transmission block 13 and the transmission belt 14 to rotate synchronously to apply tension to the wire.

[0027] Further, the other end of the transmission belt 14 is sleeved outside the second transmission block 15, and the transmission belt 14 is in transmission connection with the second transmission block 15. The second transmission block 15 is circularly designed. The front and rear ends of the top inside the device main body 1 are also provided with second fixing blocks 16, and the top inside the device main body 1 is welded to the top of the second fixing blocks 16. One side of the second fixing block 16 is sleeved outside the front end of the rotating block 17, and the second fixing block 16 is rotatably connected to the rotating block 17. The inner wall of the second fixing block 16 and the rotating block 17 are both circularly designed. The rear end of the rotating block 17 is welded to the front end of the second threaded rod 18. The rear end of the second threaded rod 18 passes through the side end of the second fixing block 16 at the rear end of the device main body 1 and is welded to the front end of the second transmission block 15;

[0028] During operation, the transmission belt 14 rotates to drive the second transmission block 15 at the upper position to rotate. When the second transmission block 15 rotates, it drives the second threaded rod 18 and the rotating block 17 to rotate synchronously, and the rotating block 17 rotates along the inside of the second fixing block 16 to apply tension to the wire.

[0029] Further, both ends of the outer sides of the first threaded rod 12 and the second threaded rod 18 are also sleeved with moving blocks 19, and the first threaded rod 12 and the second threaded rod 18 are also threadedly connected to the moving blocks 19. One side of the moving block 19 is welded to one side of the third fixing block 20. The third fixing block 20 is sleeved outside the second guiding rod 31, and the third fixing block 20 is slidably connected to the second guiding rod 31. The inner wall of the third fixing block 20 and the second guiding rod 31 are both circularly designed. The front and rear ends of the second guiding rod 31 are also provided with fourth fixing blocks 21, and the second guiding rod 31 is welded to the side end of the fourth fixing block 21. The bottom end of the fourth fixing block 21 is welded to the device main body 1;

[0030] During operation, the first threaded rod 12 and the second threaded rod 18 rotate simultaneously. The first threaded rod 12 and the second threaded rod 18 simultaneously drive the moving blocks 19 on both sides of the surfaces of the first threaded rod 12 and the second threaded rod 18 to move towards the middle at the same time. When the moving blocks 19 move, they drive the third fixing block 20 to move along the surface of the second guiding rod 31 inside the fourth fixing block 21 to apply tension to the wire.

[0031] Further, the top end of the moving block 19 is welded to the bottom end of the first rotating seat 22. One end of the lifting rod 23 is sleeved inside the first rotating seat 22, and the first rotating seat 22 is rotatably connected to the lifting rod 23. The other end of the lifting rod 23 is sleeved inside the second rotating seat 24, and the lifting rod 23 is rotatably connected to the second rotating seat 24. The top end of the second rotating seat 24 is welded to the bottom end of the fixing plate 25. The inner wall of the lifting rod 23 is circularly designed;

[0032] During operation, the moving block 19 drives one end of the lifting rod 23 to flip outwards along the inside of the first rotating seat 22. At the same time, the other end of the lifting rod 23 rotates along the inside of the second rotating seat 24, and pushes the fixed plate 25 to move towards the surface of the wire until the wire rollers 30 on both sides respectively abut against the wire to generate tension, which is used to apply tension to the wire.

[0033] Further, reset springs 26 are also arranged on both sides of the top end of the second transmission block 15. The bottom end of the reset spring 26 is welded to the top end of the fixed plate 25, and the top end of the reset spring 26 is welded to the bottom end of the moving plate 27. First guide rods 28 are also arranged on both sides of the top end of the fixed plate 25 near the edge, and the bottom end of the first guide rod 28 is welded to the top end of the fixed plate 25. The outside of the first guide rod 28 is sleeved with the moving plate 27, and the first guide rod 28 is slidably connected to the moving plate 27. The inner wall of the moving plate 27 and the first guide rod 28 are both circularly designed;

[0034] During operation, when the applied tension is too large, the reset spring 26 will be compressed and contracted, and at the same time drive the moving plate 27 to move and contract towards the position of the fixed plate 25 along the surface of the first guide rod 28, so as to protect the wire, which is used to apply tension to the wire.

[0035] Further, the top end of the moving plate 27 is welded to the bottom end of the third rotating seat 29. A wire roller 30 is sleeved inside the third rotating seat 29 near the upper position, and the third rotating seat 29 is rotatably connected to the wire roller 30. The wire roller 30 is circularly designed;

[0036] During operation, when the wire moves, it drives the wire roller 30 to rotate along the inside of the third rotating seat 29, which is used to apply tension to the wire.

[0037] Working principle: When applying tension to the wire, first pass the wire through the inside of the threading coils 2 on both sides inside the device main body 1 at the same time, and then start the motor 11 on the side of the first fixing block 10 at the bottom end of the device main body 1 to drive the first threaded rod 12 to rotate. When the first threaded rod 12 rotates, it drives the first transmission block 13 and the transmission belt 14 to rotate synchronously. When the transmission belt 14 rotates, it drives the second transmission block 15 at the upper position to rotate. When the second transmission block 15 rotates, it drives the second threaded rod 18 and the rotating block 17 to rotate synchronously, and the rotating block 17 rotates along the inside of the second fixing block 16. When the first threaded rod 12 and the second threaded rod 18 rotate simultaneously, the first threaded rod 12 and the second threaded rod 18 simultaneously drive the moving blocks 19 on both sides of the surfaces of the first threaded rod 12 and the second threaded rod 18 to move towards the middle at the same time. When the moving blocks 19 move, they drive the third fixing block 20 to move along the surface of the second guide rod 31 inside the fourth fixing block 21. At the same time, the moving blocks 19 drive one end of the lifting rod 23 to flip outwards along the inside of the first rotating seat 22. At the same time, the other end of the lifting rod 23 rotates along the inside of the second rotating seat 24 and pushes the fixing plate 25 to move towards the surface of the wire until the wire rollers 30 on both sides respectively abut against the wire to generate tension. And when the wire moves, it simultaneously drives the wire rollers 30 to rotate along the inside of the third rotating seat 29. And when the applied tension is too large, the return spring 26 will be compressed and contracted, and at the same time, it drives the moving plate 27 to move and contract towards the position of the fixing plate 25 along the surface of the first guide rod 28, so as to protect the wire and apply tension to the wire.

[0038] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A constant-tension wire pay-off device, comprising a device main body (1); characterized in that: On both sides of the top end inside the device main body (1), threading coils (2) are also provided, and the top end inside the device main body (1) is fixedly connected to the top end of the threading coils (2). An adjustable protection tension mechanism is provided inside the device main body (1). The adjustable protection tension mechanism includes a first fixing block (10). The first fixing block (10) is arranged at the front and rear ends of the bottom end of the device main body (1), and the bottom end of the first fixing block (10) is fixedly connected to the top end of the device main body (1). The side end of the first fixing block (10) at the front end of the device main body (1) is fixedly connected to a motor (11). The rear end of the motor (11) passes through the side end of the first fixing block (10) and is fixedly connected to the front end of a first threaded rod (12). The rear end of the first threaded rod (12) passes through the side end of the first fixing block (10) at the rear end of the device main body (1) and is fixedly connected to the front end of a first transmission block (13). One end of a transmission belt (14) is sleeved outside the first transmission block (13), and the first transmission block (13) is in transmission connection with the transmission belt (14).

2. The constant-tension wire pay-off device according to claim 1, wherein: The other end of the transmission belt (14) is sleeved outside a second transmission block (15), and the transmission belt (14) is in transmission connection with the second transmission block (15). On the front and rear ends of the top end inside the device main body (1), second fixing blocks (16) are also provided, and the top end inside the device main body (1) is fixedly connected to the top end of the second fixing blocks (16). One side of the second fixing block (16) is sleeved outside the front end of a rotating block (17), and the second fixing block (16) is rotatably connected to the rotating block (17). The rear end of the rotating block (17) is fixedly connected to the front end of a second threaded rod (18). The rear end of the second threaded rod (18) passes through the side end of the second fixing block (16) at the rear end of the device main body (1) and is fixedly connected to the front end of the second transmission block (15).

3. The constant-tension wire pay-off device according to claim 2, characterized in that: At both ends of the outer sides of the first threaded rod (12) and the second threaded rod (18), moving blocks (19) are also sleeved, and the first threaded rod (12) and the second threaded rod (18) are also threadedly connected to the moving blocks (19). One side of the moving block (19) is fixedly connected to one side of a third fixing block (20). The third fixing block (20) is sleeved outside a second guiding rod (31), and the third fixing block (20) is slidably connected to the second guiding rod (31). At the front and rear ends of the second guiding rod (31), fourth fixing blocks (21) are also provided, and the second guiding rod (31) is fixedly connected to the side ends of the fourth fixing blocks (21). The bottom end of the fourth fixing block (21) is fixedly connected to the device main body (1).

4. The constant-tension wire pay-off device according to claim 3, characterized in that: The top end of the moving block (19) is fixedly connected to the bottom end of a first rotating seat (22). One end of a lifting rod (23) is sleeved inside the first rotating seat (22), and the first rotating seat (22) is rotatably connected to the lifting rod (23). The other end of the lifting rod (23) is sleeved inside a second rotating seat (24), and the lifting rod (23) is rotatably connected to the second rotating seat (24). The top end of the second rotating seat (24) is fixedly connected to the bottom end of a fixing plate (25).

5. The constant-tension wire pay-off device according to claim 4, characterized in that: On both sides of the top end of the second transmission block (15), a return spring (26) is also provided. The bottom end of the return spring (26) is fixedly connected to the top end of the fixed plate (25), and the top end of the return spring (26) is fixedly connected to the bottom end of the moving plate (27). On both sides of the top end of the fixed plate (25) near the edge, a first guide rod (28) is also provided, and the top end of the fixed plate (25) is fixedly connected to the bottom end of the first guide rod (28). The outer side of the first guide rod (28) is sleeved with the moving plate (27), and the first guide rod (28) is slidably connected to the moving plate (27).

6. The constant-tension wire pay-off device according to claim 5, characterized in that: The top end of the moving plate (27) is fixedly connected to the bottom end of the third rotating seat (29). Inside the third rotating seat (29) at a position near the upper part, a wire roller (30) is sleeved, and the third rotating seat (29) is rotatably connected to the wire roller (30).

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