Swing bar pay-off machine

Abstract

The utility model discloses a pay-off machine with a swing lever, which relates to the technical field of pay-off machines and comprises a case, an erecting unit used for erecting a cable roll is arranged on the case and comprises a servo motor arranged in the case, a rotating disc is arranged at the output end of the servo motor, an inner supporting mechanism is arranged on the erecting unit, and the rotating disc is arranged on the rotating disc. A mounting arm is arranged at the top end of the case, a rotating shaft is arranged on the mounting arm, a rotating wheel is rotationally arranged at one end of the rotating shaft, a swing lever is arranged on the rotating wheel, a tensioning wheel is arranged at one end of the swing lever, and a torsional spring is arranged between the rotating disc and the rotating shaft; a first guide wheel set is rotationally arranged on the rotating shaft, a swing arm is arranged at the other end of the case, and a second guide wheel set is arranged at one end of the swing arm; according to the utility model, the torsion spring is arranged to provide elastic and variable swinging force for the swinging bar, and the tensioning wheel not only plays a role in tensioning during pay-off, but also plays a role in buffering a cable, so that the problem that the cable is snapped and wound disorderly is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of wire-paying machines, in particular to a swing-bar wire-paying machine. Background Art

[0002] In the process of stripping and cutting cables, in order to improve the efficiency of wire payout and cut the cables according to the set length, the wire stripping machine generally needs to be used in conjunction with a wire payout machine. First, the cable reel is placed on the payout machine, and one end of the cable is placed in the wire stripping machine. The wire stripping machine's feeding mechanism is used to link the payout machine to pay out the wire.

[0003] The existing utility model patent with publication number CN 206827780 U and publication date January 2, 2018, discloses a wire pay-off machine, comprising a wire pay-off mechanism for effectively paying out a wire from a wire coil and a wire pulling mechanism for pulling the wire. The wire pay-off mechanism includes a flattening device for flattening the wire, a lubricating device for reducing resistance to the wire when being pulled, and a wire coil storage device for placing the wire coil. The wire coil storage device includes a spool-shaped wire placement device for placing an axial wire and a wire coil placement component for placing a hollow wire coil. The wire coil placement component is disposed on a cover plate, which is hingedly connected to the spool-shaped wire placement device so that the wire coil placement component can cover the spool-shaped wire placement device.

[0004] This utility model patent can be applied to the pay-off operation of different types of wire coils, thereby meeting the processing and manufacturing needs of enterprises for different types of cables;

[0005] However, this patent has a problem during use: when the cable is pulled by the traction mechanism in front, the cable directly acts on the axial wire placement device to rotate and realize wire release. There is no buffer device for the cable tension between the traction end of the cable and the axial wire placement device. This results in a large acceleration between the cable and the axial wire placement device, and there is a possibility that the cable will be broken instantly or the axial wire placement device will rotate freely under the action of inertia, further leading to the problem of disordered winding.

[0006] Therefore, there is an urgent need for a swing bar pay-off machine that can buffer the cable when it is being paid out, thereby preventing the cable from being broken and tangled. Utility Model Content

[0007] In response to the above technical problems, the utility model provides a swing-bar pay-off machine, which is used to solve the problem that the existing pay-off machine does not have any buffer device for the tension from the cable between the traction end of the cable and the axial wire placing device, resulting in a large acceleration between the cable and the axial wire placing device, and there is a possibility that the cable may be instantly broken or the axial wire placing device may rotate freely under the action of inertia, resulting in disordered winding.

[0008] The above technical objectives of the present invention are achieved through the following technical solutions:

[0009] A swing bar pay-off machine includes a body and a chassis. The chassis is provided with a mounting unit for mounting a cable roll. The mounting unit includes a servo motor arranged in the chassis. A turntable is provided at the output end of the servo motor. The mounting unit is equipped with an internal support mechanism. A mounting arm is provided at the top of the chassis. A rotating shaft is provided on the mounting arm. A rotating wheel is rotatably provided at one end of the rotating shaft. A swing bar is provided on the rotating wheel. A tensioning wheel is provided at one end of the swing bar. A torsion spring is provided between the turntable and the rotating shaft.

[0010] A first guide wheel group is rotatably provided on the rotating shaft, a swing arm is provided at the other end of the chassis, and a second guide wheel group is provided at one end of the swing arm.

[0011] Furthermore, a linkage shaft is provided at one end of the swing arm, a linkage wheel is provided at one end of the linkage shaft, an angular displacement sensor is provided in the chassis, the angular displacement sensor and the linkage wheel are connected through a drive chain, and a controller is also provided in the chassis, and the angular displacement sensor changes the speed of the servo motor through the controller.

[0012] Furthermore, the internal support mechanism includes a variable diameter disk and multiple circumferentially arranged internal support plates. The variable diameter disk is mounted on the output end of the servo motor and is located on the side of the turntable close to the chassis. The variable diameter disk is provided with a guide hole for changing the radius of the virtual circle where the internal support plate is located.

[0013] Furthermore, a support arm is provided on one side of the inner support plate, and a guide block is provided at one end of the support arm. The guide block can slide along the path of the guide hole under the rotation of the variable diameter disk, and a through opening is provided at the position of the turntable corresponding to the guide block.

[0014] Furthermore, a slide rail is provided on the turntable along the moving path of the inner support plate, and a sliding opening is provided at a position of the inner support plate corresponding to the slide rail.

[0015] Furthermore, one end of the support arm is provided with a limiting block for preventing it from falling out of the guide hole.

[0016] Furthermore, a pressure arm is mounted on the inner support plate, a mounting bracket is provided on the pressure arm, an elastic clamp is provided on the mounting bracket, the elastic clamp includes a pressure plate and a connecting plate, one end of the connecting plate is provided with a clamping tooth, and a plurality of clamping platforms are provided at positions of the inner support plate corresponding to the clamping teeth.

[0017] Furthermore, the mounting arm is provided with a bracket below the rotating shaft, and the bracket is provided with a threading sleeve.

[0018] In summary, the beneficial technical effects of the present invention are:

[0019] (1) A torsion spring is set between the rotating shaft and the swing bar. The torsion spring provides the swing bar with an elastic rotational force when it rotates along the rotating shaft. This elastic rotational force allows the cable to be tensioned by the tension wheel during the line release. At the same time, according to the formula: F=ma, the torsion spring reduces the acceleration a between the cable and the cable reel during the line release, further reducing the force of the cable on the cable reel, playing an effective buffering role and preventing the cable from being broken. At the same time, the servo motor is used to control the rotation speed of the erection unit, so that the erection unit is prevented from rotating freely under the action of the cable during the line release process, avoiding the occurrence of disordered winding.

[0020] (2) The reducing disk is used to drive the inner support plate along the guide hole to change the inner diameter of the virtual circle, thereby supporting and tensioning the cable coil mounted on the inner support plate from the inside to the outside, further preventing the cable coil from being tangled or knotted when it is unwound.

[0021] (3) The angular displacement sensor is used to monitor the speed of the wire payout, and the controller is used to change the wire payout speed of the servo motor. This not only ensures the smoothness of the wire payout, but also avoids the speed difference that may cause the cable to break or become tangled. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 is a schematic diagram of the mounting arm and associated structure;

[0024] Figure 3 It is a schematic diagram of the structure inside the chassis;

[0025] Figure 4 It is a structural diagram of the erection unit;

[0026] Figure 5 It is a schematic diagram of the reducer and associated structure;

[0027] Figure 6 It is a schematic diagram of the inner support plate;

[0028] Figure 7 yes Figure 6 The schematic diagram of the pressure arm is hidden;

[0029] Figure 8 It is a wiring diagram of the utility model.

[0030] Figure markings: 1. chassis; 2. base; 3. mounting arm; 4. rotating shaft; 5. first guide wheel group; 6. rotating wheel; 7. swing bar; 8. tensioning wheel; 9. fixing part; 10. torsion spring; 11. turntable; 12. reducing disk; 13. inner support plate; 14. swing arm; 15. second guide wheel group; 16. servo motor; 17. controller; 18. angular displacement sensor; 19. linkage wheel; 20. guide hole; 21. support arm; 22. guide block; 23. limit block; 24. through-port; 25. pressure arm; 26. elastic clip; 27. pressure plate; 28. connecting plate; 29. ​​clamping platform; 30. clamping teeth; 31. support column; 32. bracket; 33. threading sleeve; 34. slide rail; 35. sliding port; 36. cable. DETAILED DESCRIPTION

[0031] The present invention will be described clearly and completely below with reference to the embodiments.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In the description of the embodiments, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections, connections through an intermediary medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on their specific circumstances.

[0034] See attached Figure 1-7, shown is a swing bar pay-off machine, including a chassis 1, a base 2 is welded and fixed to the bottom of the chassis 1, wherein a mounting arm 3 is welded and fixed to the top of the chassis 1, a rotating shaft 4 is horizontally provided at one end of the mounting arm 3, a first guide wheel group 5 is provided on the rotating shaft 4, and a rotating wheel 6 is provided on one side of the rotating shaft 4 located at the first guide wheel group 5, a swing bar 7 is provided on the rotating wheel 6, and a tensioning wheel 8 is provided on the top of the swing bar 7 for rotation. When in use, the cable 36 passes through the tensioning wheel 8 and is placed in the wire stripping machine, and a torsion spring 10 is provided at one end of the rotating shaft 4 located at the rotating wheel 6. One end of the torsion spring 10 is clamped on the rotating wheel 6, and the other end is connected to the fixing part 9 of the rotating shaft 4. When in use, when the wire stripping machine feeds the wire forward, the cable 36 will act on the tensioning wheel 8 and the swing bar 7 rotate clockwise around the rotating shaft 4. At this time, the forward pulling force of the cable 36 is offset by the reaction force of the torsion spring 10, thereby playing a tensioning role on the cable 36. At the same time, a mounting unit is rotatably provided on the chassis 1. The mounting unit includes a servo motor 16 and a turntable 11 arranged at the output end of the servo motor 16. The turntable 11 is provided with an internal support mechanism. When paying out the line, the cable reel is sheathed on the internal support mechanism. Since the pulling force from the cable 36 is offset by the torsion spring 10 when paying out the line, the pulling force of the cable 36 between the tensioning wheel 8 and the cable reel is also buffered, thereby preventing the cable 36 from being broken due to excessive acceleration applied to the cable 36 during feeding.

[0035] In addition, a swing arm 14 is rotatably provided at one end of the chassis 1 close to the base 2, and a second guide wheel group 15 is provided at one end of the swing arm 14, and a linkage shaft is provided at the other end. One end of the linkage shaft is located in the chassis 1 and a linkage wheel 19 is provided. An angular displacement sensor 18 is provided in the chassis 1, and the angular displacement sensor 18 and the linkage wheel 19 are connected by a drive chain. A controller 17 is also provided in the chassis 1, and signals are connected among the angular displacement sensor 18, the controller 17, and the servo motor 16. When the wire stripping machine exerts tension on the cable 36 during wire pay-off, the cable 36 first acts on the swing arm 14 through the tension. At this time, the swing arm 14 will rotate counterclockwise upward under the action of the cable 36. The greater the height value of the swing arm 14 is lifted upward, the angular displacement sensor 18 will feed back this signal to the controller 17, and the controller 17 will further control the servo motor 16 to rotate faster, thereby achieving the same frequency of the wire feeding and wire pay-off speeds, thereby avoiding the wire pay-off being too fast to cause tangled winding or the wire pay-off speed being too slow to break the cable 36.

[0036] Furthermore, the internal support mechanism includes a variable diameter disk 12 and three internal support plates 13 arranged on the circumference. The variable diameter disk 12 is mounted on the output end of the servo motor 16 and is located on the side of the turntable 11 close to the chassis 1. The variable diameter disk 12 is provided with a guide hole 20 for changing the radius of the virtual circle on which the internal support plates 13 are located.

[0037] A support arm 21 is provided on one side of the inner support plate 13, and a guide block 22 is provided at one end of the support arm 21. The guide block 22 can slide along the path of the guide hole 20 under the rotation of the variable diameter disk 12. A through hole 24 is provided at a position corresponding to the guide block 22 of the turntable 11, and a limit block 23 is provided at one end of the support arm 21 to prevent it from falling out of the guide hole 20. In order to improve the stability of the inner support plate 13 in moving on the turntable 11, a slide rail 34 is provided on the turntable 11 along the moving path of the inner support plate 13, and a slide opening 35 is provided at a position corresponding to the slide rail 34 of the inner support plate 13.

[0038] A pressure arm 25 is mounted on the inner support plate 13, and a mounting bracket is provided on the pressure arm 25. An elastic clamp 26 is provided on the mounting bracket. The elastic clamp 26 includes a pressure plate 27 and a connecting plate 28. One end of the connecting plate 28 is provided with a latching tooth 30. The inner support plate 13 is provided with a plurality of latching platforms 29 at positions corresponding to the latching teeth 30. When the pressure plate 27 is pressed downward during use, the latching teeth 30 are separated from the latching platforms 29. At this time, the entire pressure arm 25 will move up and down along the inner support plate 13. When the pressure plate 27 is released, the latching teeth 30 will be latched onto the latching platforms 29 to fix the position of the pressure arm 25 on the inner support plate 13.

[0039] When paying out the line, the cable roll is sleeved on the three inner support plates 13, and then the diameter-changing disk 12 is rotated. The guide blocks 22 on the three inner support plates 13 will slide along the path of the guide holes 20. At this time, the radius of the virtual circle where the three inner support plates 13 are located is increased, and the cable 36 roll is supported from the inside to the outside, thus preventing the cable roll from being wound during the payout. At the same time, when the cable roll is sleeved on the three inner support plates 13, the elastic clamp 26 presses the pressure arm 25 on the top of the cable roll according to the height of the cable roll. In this way, the cable 36 roll is clamped between the pressure arm 25 and the turntable 11 under the cooperation of the pressure arm 25 and the turntable 11, further preventing it from being wound randomly.

[0040] Furthermore, in order to prevent the servo motor 16 from rotating in the opposite direction and breaking the cable 36, a support column 31 is provided on the base 2. The support column 31 holds the swing arm 14 in a horizontal state. The swing arm 14 takes the horizontal state as the zero-degree angle position, thereby making a relative angle change.

[0041] Finally, the mounting arm 3 is provided with a bracket 32 ​​below the first guide wheel group 5, and the bracket 32 ​​is provided with a wire sleeve 33. When the cable 36 comes out of the turntable 11, it first passes through the wire sleeve 33 and then reaches the first guide wheel group 5. The wire sleeve 33 can prevent the cable 36 from falling off after directly reaching the first guide wheel group 5.

[0042] When laying out the line, refer to the attached Figure 8As shown, first rotate the variable diameter disk 12 and use the guide hole 20 to reduce the radius of the virtual circle where the three inner support plates 13 are located so that the cable roll can be put on the three inner support plates 13, then remove the entire pressure arm 25 from the inner support plate 13 through the elastic clip 26, then put the cable roll on the inner support plate 13, then press the pressure arm 25 on the top of the cable roll, then rotate the variable diameter disk 12 in the opposite direction to make the three inner support plates 13 expand outward to support the cable roll, and then pass the cable 36 through the threading sleeve 33, the first guide wheel group 5, the second guide wheel, and the tensioning wheel 8 in turn. When paying out the wire, the wire stripping machine applies a forward pulling force to the cable 36, and then the cable 36 will further pull the swing arm 14 upward to change the angle. When the angular displacement sensor 18 receives the angle change signal, it feeds back the signal to the controller 17, and the controller 17 further controls the servo motor 16 to make a corresponding rotation speed to pay out the wire.

[0043] The above description is only a preferred specific embodiment of the present invention and does not limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A swing bar pay-off machine, characterized in that: The invention comprises a chassis (1), wherein the chassis (1) is provided with a mounting unit for mounting a cable roll, wherein the mounting unit comprises a servo motor (16) arranged in the chassis (1), wherein the output end of the servo motor (16) is provided with a turntable (11), wherein the mounting unit is provided with an internal support mechanism, wherein a mounting arm (3) is provided at the top end of the chassis (1), wherein a rotating shaft (4) is provided on the mounting arm (3), wherein a rotating wheel (6) is rotatably provided at one end of the rotating shaft (4), wherein a swing lever (7) is provided on the rotating wheel (6), wherein a tensioning wheel (8) is provided at one end of the swing lever (7), and a torsion spring (10) is provided between the turntable (11) and the rotating shaft (4); A first guide wheel group (5) is rotatably provided on the rotating shaft (4), a swing arm (14) is provided at the other end of the chassis (1), and a second guide wheel group (15) is provided at one end of the swing arm (14).

2. The swing-bar pay-off machine according to claim 1, characterized in that: A linkage shaft is provided at one end of the swing arm (14), a linkage wheel (19) is provided at one end of the linkage shaft, an angular displacement sensor (18) is provided in the chassis (1), the angular displacement sensor (18) and the linkage wheel (19) are connected via a drive chain, a controller (17) is further provided in the chassis (1), and the angular displacement sensor (18) changes the rotation speed of the servo motor (16) via the controller (17).

3. The swing-bar pay-off machine according to claim 1, characterized in that: The inner support mechanism comprises a variable diameter disk (12) and a plurality of inner support plates (13) arranged on a circumference. The variable diameter disk (12) is mounted on the output end of the servo motor (16) and is located on a side of the turntable (11) close to the chassis (1). The variable diameter disk (12) is provided with a guide hole (20) for changing the radius of the virtual circle where the inner support plate (13) is located.

4. The swing-bar pay-off machine according to claim 3, characterized in that: A support arm (21) is provided on one side of the inner support plate (13), and a guide block (22) is provided at one end of the support arm (21). The guide block (22) can slide along the path of the guide hole (20) under the rotation of the variable diameter disk (12), and a through opening (24) is provided on the rotating disk (11) at a position corresponding to the guide block (22).

5. The swing-bar pay-off machine according to claim 3, characterized in that: A slide rail (34) is provided on the turntable (11) along the moving path of the inner support plate (13), and a sliding opening (35) is provided on the inner support plate (13) at a position corresponding to the slide rail (34).

6. A swing bar (7) pay-off machine according to claim 4, characterized in that: One end of the support arm (21) is provided with a limiting block (23) for preventing the support arm (21) from falling out of the guide hole (20).

7. The swing-bar pay-off machine according to claim 3, characterized in that: The inner support plate (13) is provided with a pressure arm (25), the pressure arm (25) is provided with a mounting frame, the mounting frame is provided with an elastic clamp (26), the elastic clamp (26) includes a pressure plate (27) and a connecting plate (28), one end of the connecting plate (28) is provided with a clamping tooth (30), and the inner support plate (13) is provided with a plurality of clamping platforms (29) at positions corresponding to the clamping teeth (30).

8. The swing-bar pay-off machine according to claim 1, characterized in that: The mounting arm (3) is provided with a bracket (32) below the rotating shaft (4), and a threading sleeve (33) is provided on the bracket (32).

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