A compact cable trimmer

Abstract

The application discloses a small cable cutting machine, and aims at solving the problems of large volume, inconvenient movement and operation of the cable cutting machine in the prior art. The application solves the above technical problems through the following technical scheme: a plurality of moving wheels are arranged at the bottom of a fixed support; one end of a rotating plate is rotatably arranged on the fixed support, an arc-shaped fixing groove is arranged on the fixed support, and the other end of the rotating plate is arranged in the arc-shaped fixing groove; and a cable cutting mechanism is arranged on the rotating plate. In the application, the moving wheels arranged at the bottom of the fixed support can facilitate the movement of the fixed support; the rotating plate can rotate around the fulcrum at one end, so that the angle of the rotating plate can be adjusted; the cable cutting mechanism is arranged on the rotating plate, so that the angle of the cable cutting mechanism can be adjusted by adjusting the angle of the rotating plate, and the operation convenience is further improved.

Description

Technical Field

[0001] This invention relates to the field of wire cutting machine technology, and more specifically, to a small cable cutting machine. Background Technology

[0002] The cables produced on the civilian cable production line are wound on large reels and need to be cut before use. The traditional process involves manual cutting, which usually requires 3 to 5 people to measure the cable to a sufficient length using measuring tools, and then cut it with cutting tools. The cutting efficiency is poor, and manual measurement is prone to large errors due to human subjectivity, which can easily lead to waste of excess cable. In addition, manual cutting is labor-intensive and increases the labor input.

[0003] The patent, with publication number CN217775427U and publication date November 11, 2022, is entitled "A Multi-Diameter Multifunctional Wire Cutting Machine." It discloses a wire cutting machine that can improve cutting accuracy, reduce cable waste, and reduce the labor intensity of workers. However, due to its large size, it is inconvenient to move and operate. Summary of the Invention

[0004] This invention overcomes the problems of large size and inconvenient movement and operation of existing wire cutting machines, and provides a small cable cutting machine that is small in size, light in weight, and easy to operate. At the same time, it can also achieve precise cutting of cable length, reduce waste caused by excessive cable cutting, and facilitate the management of cable materials.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a small cable cutting machine, comprising:

[0006] A fixed bracket with several casters at its bottom;

[0007] A rotating plate, one end of which is rotatably mounted on a fixed bracket, the fixed bracket having an arc-shaped fixing groove, and the other end of which is mounted within the arc-shaped fixing groove;

[0008] The wire-cutting mechanism is mounted on the rotating plate.

[0009] In this invention, movable wheels are installed at the bottom of the fixed bracket, facilitating its movement. A rotating plate, capable of rotating around a fulcrum at one end, allows for angle adjustment. The wire-cutting mechanism is mounted on this rotating plate, and its angle can be adjusted by changing the plate's angle, further enhancing operational convenience. Furthermore, by controlling the timing of the transmission motor's movement, precise cable length cutting is achieved, reducing waste caused by excessive cable cutting. Simultaneously, the cable cutting data can be recorded, facilitating cable material management.

[0010] Preferably, the sidewalls on both sides of the arc-shaped fixing groove are evenly distributed with several mounting holes, and the end of the rotating plate away from the fixing bracket is fixedly connected to the mounting holes by bolts.

[0011] By adjusting the bolts and different mounting holes, the angle of the rotating plate can be adjusted, thereby adjusting the angle of the wire cutting mechanism, making operation more convenient.

[0012] Preferably, the wire cutting mechanism includes a wire cutting bracket fixedly mounted on a rotating plate, a conveying device disposed within the wire cutting bracket, a clamping device cooperating with the conveying device, and a wire cutting device disposed at the end of the conveying device.

[0013] The conveying device is used to transfer cables, the clamping device works in conjunction with the conveying device to transfer cables, and the wire cutting device is used to cut cables.

[0014] Preferably, the conveying device includes a driving gear and a driven gear disposed at both ends of the wire cutting bracket along its length. The driving gear is connected to the output end of the conveying motor, and a transmission chain is wound around the driving gear and the driven gear.

[0015] The transmission motor rotates, which drives the drive gear to rotate, thereby causing the transmission chain to rotate and driving the cable to move.

[0016] Preferably, the clamping device includes a clamping bracket disposed above the conveying device, and a plurality of clamping rollers are disposed on the clamping bracket along the length of the rotating plate; a lifting screw is disposed on the top of the clamping bracket, the bottom of the lifting screw is rotatably connected to the clamping bracket, the lifting screw is threadedly connected to the wire cutting bracket, and a rotating handwheel is disposed on the top of the lifting screw.

[0017] Turning the handwheel drives the lifting screw to rotate, causing the lifting screw to rise and fall, which in turn causes the clamping bracket to rise or fall. This allows adjustment of the gap between the clamping roller and the rubber pad, enabling the clamping of cables of different diameters and ensuring that the cables can move stably on the transmission chain.

[0018] Preferably, the wire cutting device includes a fixed cutter head and a movable cutter head; the fixed cutter head is fixedly mounted on the wire cutting bracket; the movable cutter head is located at the end of the telescopic rod; the fixed cutter head is provided with a downward-curved arc-shaped blade, and the movable cutter head is provided with an upward-curved arc-shaped blade, and the fixed cutter head and the movable cutter head cooperate with each other.

[0019] In use, the cable passes between the movable and fixed cutter heads, and the telescopic rod drives the movable cutter head upward to cut the cable.

[0020] Preferably, the driven gear is connected to the tensioning device, and a driven shaft is inserted inside the driven gear; the tensioning device includes a threaded tie rod that passes through both ends of the driven shaft, the threaded tie rod is threadedly connected to the end of the driven shaft, the end of the wire cutter bracket is provided with a tensioning hole, the threaded tie rod passes through the tensioning hole, and a limit head is provided at the end of the threaded tie rod away from the driven shaft.

[0021] By adjusting the length of the threaded tie rod, the threaded tie rod can pull the driven shaft to move, which in turn drives the driven gear to move, thus adjusting the gap between the driven gear and the driving gear, and achieving tensioning of the transmission chain.

[0022] Preferably, the transmission chain has several rubber pads evenly spaced along its length; the rubber pads are arranged along the width of the transmission chain.

[0023] Rubber pads can increase the friction between the rubber pad and the cable, and at the same time protect the cable and prevent it from being compressed.

[0024] Preferably, guide plates are provided on both sides of the movable cutter head in the thickness direction, and both guide plates are fixedly installed at the end of the telescopic rod. Guide strips are provided on both sides of the fixed cutter head in the width direction, and the guide strips are positioned between the two guide plates.

[0025] By cooperating with the guide plate and the guide bar, the two guide plates can slide on both sides of the guide bar when the telescopic rod extends and retracts, making the movement of the movable cutter head more stable.

[0026] Preferably, the end of the telescopic rod is provided with a swing groove, and the movable cutter head is provided with a swing plate, which is disposed in the swing groove; the two side walls of the swing groove are provided with a wave groove and a vertical groove in sequence from the inside to the outside along the opening direction; the two sides of the swing plate are provided with a sliding head and a swing head along its length direction, the sliding head is disposed in the vertical groove, and the swing head is disposed in the swing groove; a return spring is provided in the vertical groove, one end of the return spring abuts against the end of the vertical groove away from the opening of the swing head, and the other end of the return spring abuts against the swing head.

[0027] When the conveying device is conveying the cable, the return spring pushes the pendulum, causing the pendulum head to be at the top of the sliding groove. When the cable needs to be cut, the telescopic rod drives the movable cutter head upward. When the movable cutter head just comes into contact with the cable, the resistance of the cable to the movable cutter head is small, and the return spring remains in its initial state. The movable cutter head moves upward to cut the cable. As the movable cutter head cuts the cable, the resistance of the cable to the movable cutter head increases. When the resistance increases to a certain level, the sliding head overcomes the elastic force of the return spring, causing the sliding head to slide downward along the vertical groove. When in motion, the swing head slides along the wave groove. As the swing head slides along the wave groove, the swing plate swings around the sliding head as the rotation center, which in turn causes the fixed cutter head to swing around the sliding head as the swing center. This allows the swinging fixed cutter head to cut the cable better and easier during the cable cutting process, reducing the reaction force on the electric cylinder, improving the service life of the electric cylinder, and making the cut position of the cable end flatter. This prevents the formation of sharp points due to uneven cable end cutting, and prevents sharp points from puncturing workers who handle or install cables.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] (1) By setting movable wheels at the bottom of the fixed bracket, the fixed bracket can be moved easily;

[0030] (2) The rotating plate can rotate around the fulcrum at one end, so that the angle of the rotating plate can be adjusted. The wire cutting mechanism is set on the rotating plate, so that the angle of the wire cutting mechanism can be adjusted by adjusting the angle of the rotating plate, which further improves the convenience of operation.

[0031] (3) By controlling the movement time of the transmission motor, the cable length can be accurately cut, reducing waste caused by excessive cable cutting. At the same time, the data of cable cutting can be recorded, which facilitates the management of cable materials. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the arrangement structure of the present invention;

[0033] Figure 2 This is a three-dimensional structural diagram of the wire-cutting mechanism of the present invention;

[0034] Figure 3 This is a three-dimensional structural diagram of the internal structure of the wire-cutting mechanism of the present invention;

[0035] Figure 4 This is a three-dimensional structural diagram of the wire-cutting device of the present invention;

[0036] Figure 5This is a cross-sectional view of the wire-cutting device of the present invention;

[0037] Figure 6 This is a cross-sectional view of the wire-cutting device of the present invention from another angle;

[0038] Figure 7 This is a three-dimensional structural diagram of the movable cutter head of the present invention;

[0039] Figure 8 This is a cross-sectional view of the telescopic rod of the present invention;

[0040] In the diagram: 1. Fixed bracket, 11. Horizontal frame, 12. Vertical frame, 13. Mounting plate, 14. Casters;

[0041] 2. Rotating plate; 21. Arc-shaped fixing groove; 22. Mounting hole;

[0042] 3. Control panel;

[0043] 4. Wire cutter bracket; 41. Tensioning hole;

[0044] 5. Conveying device; 51. Driving gear; 52. Driven gear; 53. Transmission chain; 54. Rubber pad; 55. Conveying motor; 56. Driven shaft; 57. Threaded tie rod; 58. Limit head.

[0045] 6. Clamping device; 61. Clamping bracket; 62. Clamping roller; 63. Lifting screw; 64. Rotating handwheel;

[0046] 7. Wire cutting device, 71. Fixed cutter head, 711. Guide bar, 72. Movable cutter head, 721. Swing plate, 722. Swing head, 723. Sliding head, 73. Telescopic rod, 731. Swing groove, 732. Wave groove, 733. Vertical groove, 734. Return spring, 74. Guide plate. Detailed Implementation

[0047] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0048] Example 1: Refer to Figures 1 to 4 As shown, a small cable cutting machine includes a fixed bracket 1, a rotating plate 2 rotatably mounted on the fixed bracket 1, a wire cutting mechanism mounted on the rotating plate 2, and an operation panel 3 mounted on the fixed bracket 1.

[0049] The fixed bracket 1 includes a horizontal frame 11 and vertical frames 12 disposed at both ends of the horizontal frame 11. The horizontal frame 11 and the vertical frames 12 at both ends combine to form a "C-frame", which creates a stable structure and allows the large cable reel to be placed between the "C" frames. A mounting plate 13 is disposed on the horizontal frame 11, and the rotating plate 2, the wire cutting mechanism and the control panel 3 are all disposed on the mounting plate 13. Several casters 14 are disposed at the bottom of the fixed bracket 1, which facilitates the movement of the fixed bracket 1 and thus the movement of the entire equipment.

[0050] The fixed bracket 1 is provided with an arc-shaped fixing groove 21. One end of the rotating plate 2 is rotatably mounted on the fixed bracket 1, and the other end of the rotating plate 2 slides within the arc-shaped fixing groove 21. Several mounting holes 22 are evenly distributed on the side walls of both sides of the arc-shaped fixing groove 21. The end of the rotating plate 2 away from the fixed bracket 1 is fixedly connected to the mounting holes 22 by bolts. By adjusting the bolts and different mounting holes 22, the angle of the rotating plate 2 can be adjusted, thereby adjusting the angle of the wire cutting mechanism, making operation more convenient.

[0051] The wire cutting mechanism is fixedly mounted on the rotating plate 2. The wire cutting mechanism includes a wire cutting bracket 4 fixedly mounted on the rotating plate 2, a conveying device 5 disposed within the wire cutting bracket 4, a clamping device 6 cooperating with the conveying device 5, and a wire cutting device 7 disposed at the end of the conveying device 5.

[0052] The conveying device 5 includes a driving gear 51 and a driven gear 52 disposed at both ends of the wire cutting bracket 4 along its length. The driving gear 51 is connected to the output shaft of the conveying motor 55, and a transmission chain 53 is wound around the driving gear 51 and the driven gear 52. In this embodiment, two driving gears 51 and two driven gears 52 are arranged side by side, and several rubber pads 54 are evenly spaced along the length of the transmission chain 53; the rubber pads 54 are arranged along the width of the transmission chain 53. The conveying motor 55 is fixedly disposed on the side wall of the wire cutting bracket 4, and a reducer is disposed inside the conveying motor 55. The rotation of the conveying motor 55 drives the driving gear 51 to rotate, thereby causing the transmission chain 53 to rotate and driving the cable to move.

[0053] The clamping device 6 is positioned above the transmission chain 53. The clamping device 6 mainly includes a clamping bracket 61 positioned above the conveyor 5. The clamping bracket 61 has several clamping rollers 62 arranged evenly at intervals along the length of the rotating plate 2. A lifting screw 63 is positioned at the top of the clamping bracket 61, and its bottom is rotatably connected to the clamping bracket 61. The lifting screw 63 passes through the top of the wire-cutting bracket 4 and is threadedly engaged with it. A rotating handwheel 64 is positioned at the top of the lifting screw 63. Rotating the handwheel 64 drives the lifting screw 63 to rotate, causing it to rise and fall, thereby raising or lowering the clamping bracket 61. This allows adjustment of the distance between the clamping rollers 62 and the rubber pad 54, enabling the clamping of cables of different diameters and ensuring stable cable movement on the transmission chain 53.

[0054] The wire cutting device 7 is located at the end of the conveying device 5 near the drive gear 51. The wire cutting device 7 mainly includes a fixed cutter head 71 and a movable cutter head 72. The fixed cutter head 71 is located at the top, and the movable cutter head 72 is located at the bottom. The fixed cutter head 71 is fixedly mounted on the wire cutting bracket 4. The movable cutter head 72 is located at the upper end of the telescopic rod 73. The bottom of the telescopic rod 73 is connected to a telescopic device, which can be a cylinder, an electric cylinder, or other devices with telescopic functions; in this embodiment, an electric cylinder is used. The fixed cutter head 71 has a downward-curved arc-shaped blade, and the movable cutter head 72 has an upward-curved arc-shaped blade. The fixed cutter head 71 and the movable cutter head 72 cooperate with each other. The cable passes between the movable cutter head 72 and the fixed cutter head 71, and the telescopic rod 73 drives the movable cutter head 72 to move upward to cut the cable.

[0055] In addition, guide plates 74 are provided on both sides of the movable cutter head 72 in the thickness direction. Both guide plates 74 are fixedly mounted on the ends of the telescopic rod 73. Guide strips 711 are provided on both sides of the fixed cutter head 71 in the width direction, and the guide strips 711 are positioned between the two guide plates 74. Through the cooperation of the guide plates 74 and the guide strips 711, the two guide plates 74 can slide on both sides of the guide strips 711 when the telescopic rod 73 moves forward and backward, making the movement of the movable cutter head 72 more stable.

[0056] The working principle of this invention is as follows: The cable passes between the clamping roller 62 and the rubber pad 54, and is pressed by the clamping roller 62 onto the rubber pad 54. Then, it passes between the movable cutter head 72 and the fixed cutter head 71. The length of the cable to be cut is input on the control panel. After receiving the instruction from the control panel, the control system controls the transmission motor 55 to rotate. The rotation of the transmission motor 55 drives the transmission chain 53 to move through the drive gear 51 and the driven gear 52, thereby enabling the rubber pad 54 to move the cable. By controlling the rotation of the transmission motor 55 through the control system, the cable cutting length is controlled. Then, the electric cylinder drives the telescopic rod 73 to move upward, causing the movable cutter head 72 to move upward and cooperate with the fixed cutter head 71 to cut the cable.

[0057] In this invention, a movable wheel 14 is provided at the bottom of the fixed bracket 1, facilitating its movement. A rotating plate 2 is provided, capable of rotating around a fulcrum at one end, allowing for angle adjustment. The wire-cutting mechanism is mounted on the rotating plate 2, enabling adjustment of its angle by adjusting the angle of the rotating plate 2, further simplifying operation. Furthermore, by controlling the movement time of the transmission motor 55, precise cable length cutting is achieved, reducing waste caused by excessive cable cutting. Simultaneously, the cable cutting data can be recorded, facilitating cable material management.

[0058] Example 2: Refer to Figures 1 to 4 As shown, this embodiment is similar in structure to embodiment 1, except that, in order to achieve tensioning of the transmission chain 53, a tensioning device is provided at the end of the transmission chain 53 near the driven gear 52; the driven gear 52 is connected to the tensioning device, and a driven shaft 56 passes through the driven gear 52; the tensioning device includes a threaded pull rod 57 that passes through both ends of the driven shaft 56, the threaded pull rod 57 is threadedly engaged with the end of the driven shaft 56, the end of the wire cutter bracket 4 is provided with a tensioning hole 41, the threaded pull rod 57 passes through the tensioning hole, the end of the threaded pull rod 57 away from the driven shaft 56 is provided with a limiting head 58, the end of the limiting head 58 is provided with an internal hexagonal groove, and the tensioning pull rod is parallel to the line connecting the driving gear 51 and the driven gear 52. By using an Allen wrench to rotate the Allen socket, the threaded rod 57 can pull the driven shaft 56 to move, which in turn drives the driven gear 52 to move, thus adjusting the gap between the driven gear 52 and the driving gear 51, thereby achieving tensioning of the transmission chain 53.

[0059] Example 3: Reference Figures 1 to 8As shown, this embodiment is similar in structure to Embodiment 1, except that the end of the telescopic rod 73 is provided with a swing groove 731, and a swing plate 721 is fixedly provided on the side of the movable cutter head 72 away from the fixed cutter head 71. The swing plate 721 is disposed in the swing groove 731, and the depth of the swing groove 731 is less than the depth of the sliding groove. The two side walls of the swing groove 731 are provided with a wave groove 732 and a vertical groove 733 in sequence from the inside to the outside along the opening direction. That is, the vertical groove 733 is disposed at the end close to the fixed cutter head 71, and the wave groove 732 is disposed at the end away from the fixed cutter head 71. One end of the swing plate 721; both sides of the swing plate 721 are provided with a sliding head 723 and a swing head 722 along its length direction. Both the swing head 722 and the sliding head 723 are cylindrical heads, and the diameter of the swing head 722 is larger than the diameter of the cylindrical head. The sliding head 723 is slidably disposed in the vertical groove 733, and the swing head 722 is slidably disposed in the swing groove 731. A return spring 734 is provided in the vertical groove 733. One end of the return spring 734 abuts against the end of the vertical groove 733 away from the opening of the swing head 722, and the other end of the return spring 734 abuts against the swing head 722.

[0060] The working principle of this embodiment is as follows: When the conveying device 5 is conveying the cable, the return spring 734 pushes the swing head 722 to the top of the sliding groove. When the cable needs to be cut, the telescopic rod 73 drives the movable cutter head 72 to move upward. When the movable cutter head 72 just comes into contact with the cable, the resistance of the cable to the movable cutter head 72 is small. At this time, the return spring 734 remains in its initial state, and the movable cutter head 72 moves upward to cut the cable. As the movable cutter head 72 cuts the cable, the resistance of the cable to the movable cutter head 72 increases. When the resistance increases to a certain level, the sliding head 723 overcomes the elastic force of the return spring 734, causing the sliding head 723 to move downward along the vertical groove 73. 3. Sliding: When the sliding head 723 slides downward, the swing head 722 slides along the wave groove 732. While the swing head 722 slides along the wave groove 732, the swing plate 721 swings around the sliding head 723 as the rotation center, which in turn causes the fixed cutter head 71 to swing around the sliding head 723 as the swing center. This allows the swinging fixed cutter head 71 to cut the cable better and easier during the cable cutting process, reducing the reaction force on the electric cylinder, improving the service life of the electric cylinder, and making the cutting position of the cable end flatter, preventing the formation of sharp points due to uneven cutting of the cable end, and preventing sharp points from puncturing the workers handling and installing the cable.

[0061] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. A small cable cutting machine, characterized in that, include: A fixed bracket with several casters at its bottom; A rotating plate, one end of which is rotatably mounted on a fixed bracket, the fixed bracket having an arc-shaped fixing groove, and the other end of which is mounted within the arc-shaped fixing groove; The wire-cutting mechanism is mounted on the rotating plate; The wire cutting mechanism includes a wire cutting device, which includes a fixed cutter head and a movable cutter head; the movable cutter head is located at the end of the telescopic rod. The telescopic rod has a swing groove at its end, and a swing plate is provided on the movable cutter head, which is located in the swing groove. The two side walls of the swing groove are provided with a wave groove and a vertical groove from the inside to the outside along the opening direction. The two sides of the swing plate are provided with a sliding head and a swing head along its length. The sliding head is located in the vertical groove, and the swing head is located in the wave groove. A return spring is provided in the vertical groove. One end of the return spring abuts against the end of the vertical groove away from the opening of the swing head, and the other end of the return spring abuts against the sliding head and the swing head.

2. The small cable cutting machine according to claim 1, characterized in that, The sidewalls on both sides of the arc-shaped fixing groove are evenly distributed with several mounting holes, and the end of the rotating plate away from the fixing bracket is fixedly connected to the mounting holes by bolts.

3. The small cable cutting machine according to claim 1, characterized in that, The wire cutting mechanism includes a wire cutting bracket fixedly mounted on a rotating plate, a conveying device disposed within the wire cutting bracket, a clamping device cooperating with the conveying device, and a wire cutting device disposed at the end of the conveying device.

4. The small cable cutting machine according to claim 3, characterized in that, The conveying device includes a driving gear and a driven gear located at both ends of the wire cutting bracket along its length. The driving gear is connected to the output end of the conveying motor, and a transmission chain is wound around the driving gear and the driven gear.

5. The small cable cutting machine according to claim 3 or 4, characterized in that, The clamping device includes a clamping bracket installed above the conveying device, and a number of clamping rollers are arranged along the length of the rotating plate on the clamping bracket; a lifting screw is installed on the top of the clamping bracket, the bottom of the lifting screw is rotatably connected to the clamping bracket, the lifting screw is threadedly connected to the wire cutting bracket, and a rotating handwheel is installed on the top of the lifting screw.

6. The small cable cutting machine according to claim 3, characterized in that, The fixed cutter head is fixedly mounted on the wire cutting bracket; the fixed cutter head is equipped with a downward-curved arc-shaped blade, and the movable cutter head is equipped with an upward-curved arc-shaped blade, and the fixed cutter head and the movable cutter head cooperate with each other.

7. The small cable cutting machine according to claim 4, characterized in that, The driven gear is connected to the tensioning device, and a driven shaft is inserted inside the driven gear. The tensioning device includes a threaded rod that passes through both ends of the driven shaft. The threaded rod is threadedly connected to the end of the driven shaft. The end of the wire cutter bracket is provided with a tensioning hole, and the threaded rod passes through the tensioning hole. A limit head is provided at the end of the threaded rod away from the driven shaft.

8. The small cable cutting machine according to claim 4, characterized in that, The transmission chain has several rubber pads evenly spaced along its length; the rubber pads are arranged along the width of the transmission chain.

9. The small cable cutting machine according to claim 6, characterized in that, Guide plates are provided on both sides of the thickness direction of the movable cutter head, and both guide plates are fixedly installed at the end of the telescopic rod. Guide strips are provided on both sides of the width direction of the fixed cutter head, and the guide strips are located between the two guide plates.

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