Cable cutting precision automatic adjusting device

Abstract

The invention discloses a cable cutting precision automatic adjusting device which sequentially comprises a counting module, a first wire feeding module, a cutting module, a second wire feeding module and a wire collecting module in the conductive wire core conveying direction. The counting module comprises a wheel coupling mechanism used for conveying conductive wire cores, a cam in transmission connection with one counting wheel in the wheel coupling mechanism through a transmission mechanism, a push rod in transmission connection with the cam, and a laser correlation sensor used for sensing the push rod. The counting module is used for converting a signal of the laser correlation sensor into the length of the conductive wire core; the shearing module comprises a linear driving structure and a grinding wheel which moves up and down under the action of the linear driving structure, and the grinding wheel rotates under the action of a servo motor; the first wire feeding module and the second wire feeding module are the same in structure, arranged in a mirror image mode and slidably installed through the lead screw module, each wire feeding module comprises a positioning plate driven by the lead screw module and a fixed clamping mechanism arranged on the positioning plate, and the wire collecting module comprises an alternating current motor and a wire collecting disc driven by the alternating current motor.

Description

Technical Field

[0001] This invention relates to the field of cable cutting technology, and in particular to an automatic cable cutting precision adjustment device. Background Technology

[0002] In the cable manufacturing process, the cutting accuracy of the conductive cores (copper or aluminum wires) is crucial for ensuring product quality and meeting customer needs. In traditional manual cutting devices, operators manually feed the conductive cores into the device's inlet, count the length of the fed cores, and finally cut them. However, this method has several problems. First, manual cutting devices are not only inefficient but also susceptible to human error, leading to inaccurate cutting lengths and generating a large amount of waste, resulting in resource waste. Second, traditional cable cutting devices also have design and structural flaws, such as inaccurate counting and the risk of operators being scratched by the conductive cores, making it difficult to meet the fast, efficient, and accurate production demands of modern cable manufacturing.

[0003] Therefore, the urgent need to develop a cable cutting device with automatic precision adjustment, high adaptability, and stable assembly process has become a key technical challenge that the industry needs to address. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic cable cutting accuracy adjustment device to address the problems existing in the prior art.

[0005] The technical solution adopted to achieve the purpose of this invention is: An automatic cable cutting accuracy adjustment device, comprising, in sequence along the conductive wire core conveying direction, a counting module, a first wire-continuing module, a cutting module, a second wire-continuing module, and a wire-receiving module, wherein: The counting module includes a pair of wheels for conveying conductive wire cores, a cam that is driven to one of the counting wheels in the pair of wheels via a transmission mechanism, a push rod that is driven to the cam, and a laser beam sensor for sensing the push rod. The counting module converts the signal from the laser beam sensor into the length of the conductive wire core. The shearing module includes a linear drive structure and a grinding wheel that moves up and down under the linear drive structure, and the grinding wheel is rotated by a servo motor. The first and second wire-continuing modules have identical structures and are mirror images of each other. Both are slidably mounted via a lead screw module. Each wire-continuing module includes a positioning plate driven by the lead screw module and a fixing and clamping mechanism disposed on the positioning plate. The take-up module includes an AC motor and a take-up reel driven by the AC motor.

[0006] In the above technical solution, the gear mechanism includes a first counting wheel and a second counting wheel with the same parameters. The first counting wheel and the second counting wheel are driven to rotate by a conductive wire core that passes through them. The transmission mechanism includes a driving gear fixed to the bottom of the second counting wheel through a wheel axle and a driven gear fixed to the bottom of the cam through a wheel axle. The driving gear and the driven gear constitute a parallel shaft gear mechanism.

[0007] In the above technical solution, the push rod is slidably mounted on the mounting base by a compression spring. One end of the push rod is rotatably connected to a roller, which is in constant contact with the cam profile surface. The other end of the push rod passes through the mounting base and is located between the light source and the receiver of the laser beam sensor.

[0008] In the above technical solution, the axle of the first counting wheel and the axle of the second counting wheel are respectively mounted on an adjustable base. The adjustable base is detachably fixed to the mounting base by bolts. The distance between the first counting wheel and the second counting wheel is adjusted by a gear and rack mechanism. The gear and rack mechanism includes an adjusting gear and an upper rack and a lower rack meshing with it. The upper rack and the lower rack drive the two adjustable bases to move closer or further away.

[0009] In the above technical solution, the grinding wheel is rotatably connected to the movable plate via the grinding wheel shaft, the first servo motor drives the grinding wheel shaft to rotate, and the movable plate is driven by a stepper motor and a lead screw for transmission.

[0010] In the above technical solution, the fixed clamping mechanism includes a stepper motor, a gear transmission mechanism, a rotating clamping seat, a fixed clamping seat, and n clamping claws. The output end of the stepper motor is connected to the driving wheel of the gear transmission mechanism, and the driven wheel of the gear transmission mechanism is connected to the rotating clamping seat. The fixed clamping seat is provided with n first grooves arranged in a circular matrix, and each clamping claw is provided with a second groove. The rotating clamping seat is provided with n conical holes arranged in a circular matrix. A linkage guide rod is inserted through the second groove. One end of the linkage guide rod is inserted into the conical hole, and the other end of the linkage guide rod is slidably embedded in the first groove.

[0011] In the above technical solution, the rotating clamping seat, the fixed clamping seat, and the clamping claw are all located inside the protective box.

[0012] In the above technical solution, the take-up reel includes an active take-up roller and a driven take-up roller arranged opposite to each other. The active take-up roller is connected to an AC motor through a cloverleaf coupling, and the driven take-up roller is connected to a second servo motor through a cloverleaf coupling. A take-up reel clamping opening is formed between the active take-up roller and the driven take-up roller.

[0013] In the above technical solution, the counting module, the first yarn-continuing module, the shearing module, the second yarn-continuing module, and the yarn-taking module are respectively mounted on the mounting plate of the support frame.

[0014] In the above technical solution, the support frame is composed of multiple square tubes.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The automatic cable cutting precision adjustment device of the present invention can achieve fast, accurate and efficient cutting of conductive wire cores, improve production efficiency, reduce production costs, and provide strong support for the development of the cable manufacturing industry.

[0016] 2. The cutting module of the present invention is provided with a first wire-continuing module and a second wire-continuing module with the same structure at the front and rear. Before cutting the conductive wire core, the first wire-continuing module and the second wire-continuing module are used to clamp the conductive wire core and have a tendency to move in opposite directions (i.e., the conductive wire core is tensioned before cutting), which can successfully complete the cutting action of the conductive wire core.

[0017] 3. The take-up reel of the present invention includes an active take-up roller and a driven take-up roller arranged opposite to each other. When the fixing clamping mechanism of the second wire continuation module sends the conductive wire core into the take-up reel clamping opening of the take-up module, the driven take-up roller will not be directly rotated and taken up by the active take-up roller. Instead, it will first bend the conductive wire core that enters the take-up reel clamping opening, so that it has a certain frictional force relative to the take-up reel. At this time, the reverse torque generated by the servo motor gradually decreases until it is 0. Finally, the active take-up roller presses the conductive wire core, and the wire core presses the driven take-up roller, thereby driving the driven take-up roller to rotate and finally completing the take-up action. Attached Figure Description

[0018] Figure 1 The figure shown is a three-dimensional structural diagram of the cable cutting accuracy automatic adjustment device of the present invention.

[0019] Figure 2 The diagram shown is a side view of the automatic cable cutting accuracy adjustment device of the present invention.

[0020] Figure 3 The diagram shown is a top view of the automatic cable cutting accuracy adjustment device of the present invention.

[0021] Figure 4 The diagram shown is a schematic diagram of the parallel shaft gear mechanism described in this invention.

[0022] Figure 5 The diagram shown is a schematic diagram of the gear and rack mechanism described in this invention.

[0023] Figure 6 The diagram shown is a structural schematic of the fixing and clamping mechanism described in this invention.

[0024] In the diagram: 1-Counting module, 11-Gear mechanism, 111-First counting wheel, 112-Second counting wheel, 113-Driving gear, 12-Cam, 121-Driven gear, 13-Push rod, 131-Compression spring, 132-Roller, 14-Laser beam sensor, 15-Mounting base, 16-Adjustable base, 17-Gear and rack mechanism, 171-Adjusting gear, 172-Upper rack, 173-Lower rack, 2-First wire feeding module, 21-Positioning plate, 22-Fixed clamping mechanism, 221-Stepper motor, 222-Rotating clamping seat, 223-Fixed clamping seat, 224-Clamping claw, 225-Driving wheel, 226- Driven wheel, 227-First groove, 228-Second groove, 229-Conical hole, 2210-Linkage guide rod, 2211-Protective box, 3-Shearing module, 31-Linear drive structure, 32-Grinding wheel, 33-First servo motor, 34-Grinding wheel shaft, 35-Moving plate, 36-Stepper motor, 4-Second wire feeding module, 5-Wire taking-up module, 51-AC motor, 52-Wire taking-up reel, 521-Active wire taking-up roller, 522-Driven wire taking-up roller, 53-Second servo motor, 531-Plum blossom coupling, 6-Conductive wire core, 7-Support frame, 71-Mounting plate, 72-Fuma wheel, 73-Square tube, 8-Assembly seat, 9-Screw module. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to specific embodiments. Example 1

[0026] An automatic cable cutting accuracy adjustment device, see [link / reference] Figure 1 , Figure 2 , Figure 3 Along the conveying direction of the conductive wire core 6, the system sequentially includes a counting module 1, a first wire-continuing module 2, a cutting module 3, a second wire-continuing module 4, and a wire-receiving module 5. The counting module 1, the first wire-continuing module 2, the cutting module 3, the second wire-continuing module 4, and the wire-receiving module 5 are respectively mounted on the mounting plate 71 of the support frame 7 (the first wire-continuing module 2, the cutting module 3, the second wire-continuing module 4, and the wire-receiving module 5 are coaxially arranged). The bottom of the support frame 7 is provided with casters 72 around its perimeter to move the cable cutting accuracy automatic adjustment device to the required position.

[0027] Furthermore, the support frame 7 is composed of multiple square tubes 73.

[0028] The counting module 1 includes a wheel mechanism 11 for conveying the conductive wire core 6, a cam 12 driven by a transmission mechanism and connected to one of the counting wheels in the wheel mechanism 11, a push rod 13 driven by the cam 12, and a laser beam sensor 14 for sensing the push rod 13. The counting module 1 converts the signal from the laser beam sensor 14 into the length of the conductive wire core. The counting module 1 is fixed to the support frame 7 by a mounting base 15.

[0029] Specifically, the wheel mechanism 11 includes a first counting wheel 111 and a second counting wheel 112 with identical parameters, see [link to documentation]. Figure 4 The wire drawing machine feeds the conductive wire core 6 between the first counting wheel 111 and the second counting wheel 112. Relying on the friction between the conductive wire core 6 and the first and second counting wheels 111 and 112, the feeding power of the conductive wire core 6 is transmitted to the first and second counting wheels 111 and 112, thereby driving the first and second counting wheels 111 and 112 to rotate. The transmission mechanism includes a driving gear 113 fixed to the bottom of the second counting wheel 112 via an axle, and a driven gear 121 fixed to the bottom of the cam 12 via an axle. The driving gear 113 and the driven gear 121 constitute a parallel shaft gear mechanism. See also... Figure 5 The axles of the first counting wheel 111 and the second counting wheel 112 are respectively mounted on an adjustable base 16. The adjustable base 16 is detachably fixed to the mounting base 15 by bolts. The distance between the first counting wheel 111 and the second counting wheel 112 is adjusted by a gear and rack mechanism 17. The gear and rack mechanism 17 includes an adjusting gear 171 and an upper rack 172 and a lower rack 173 meshing with it. The upper rack 172 and the lower rack 173 drive the two adjustable bases 16 to move closer or further away.

[0030] Furthermore, the push rod 13 is slidably mounted on the mounting base 8 via a compression spring 131. One end of the push rod 13 is rotatably connected to a roller 132, which is in constant contact with the contour surface of the cam 12. The other end of the push rod 13 passes through the mounting base 8 and is located between the laser emitter and receiver of the laser beam sensor 14. When the push rod 13 moves linearly back and forth, the other end of the push rod 13 intermittently lies between the laser emitter and receiver of the laser beam sensor 14, blocking the laser beam emitted by the laser emitter. This causes the laser to periodically turn on and off, thereby indirectly calculating the number of revolutions of the counting wheel and further calculating the length of the conductive wire core 6 passing through the counting wheel, thus avoiding inaccurate counting.

[0031] The shearing module 3 includes a linear drive structure 31 and a grinding wheel 32 driven up and down by the linear drive structure 31. The grinding wheel 32 is driven to rotate by a first servo motor 33. The grinding wheel 32 is rotatably connected to a movable plate 35 through a grinding wheel shaft 34. The first servo motor 33 drives the grinding wheel shaft 34 to rotate. The movable plate 35 is driven by a lead screw driven by a stepper motor 36, thereby moving the movable plate 35 in the vertical direction and using the grinding wheel 32 on the movable plate 35 to cut the conductive wire core 6.

[0032] The first wire-continuing module 2 and the second wire-continuing module 4 have the same structure and are mirror images of each other. They are both slidably mounted on the support frame 7 via the lead screw module 9. Each wire-continuing module includes a positioning plate 21 driven by the lead screw module 9 and a fixing clamping mechanism 22 disposed on the positioning plate 21.

[0033] For details, see Figure 6 The fixed clamping mechanism 22 includes a stepper motor 221, a gear transmission mechanism, a rotating clamping seat 222, a fixed clamping seat 223, and n clamping jaws 224. The output end of the stepper motor 221 is connected to the driving wheel 225 of the gear transmission mechanism, and the driven wheel 226 of the gear transmission mechanism is connected to the rotating clamping seat 222 to drive the rotating clamping seat 222 to rotate. The fixed clamping seat 223 is provided with n first grooves 227 (straight grooves) arranged in a circular matrix, and each clamping jaw 224 is provided with a second groove 228. The base 222 has n conical holes 229 arranged in a circular matrix. A linkage guide rod 2210 is inserted through the second groove 228. One end of the linkage guide rod 2210 is inserted into the conical hole 229, and the other end is slidably embedded in the first groove 227. When the rotating clamping base 222 rotates, it drives the linkage guide rod 2210 to move synchronously along the straight direction of the first groove 227, thereby converting the circumferential rotation of the rotating clamping base 222 into the radial linear motion of the clamping claw 224, realizing the clamping and releasing of the conductive wire core 6. Preferably, n is 8.

[0034] To ensure that the eight sides of the clamping claw remain tightly connected without gaps when the clamping claw retracts, and to prevent the conductive wire core 6 from falling into the gap between the two clamping claws 224 and jamming or damaging the fixing clamping mechanism 22, the relationship between the number of clamping claws 224 and the angle between the axis of the groove of the clamping claw 224 and the longest side of the clamping claw 224 is expressed as follows:

[0035] In the formula, The angle between the axis of the boss 118 of the clamping jaw 224 and the longest side of the clamping jaw 224; This represents the number of clamping claws 224.

[0036] Furthermore, the rotating clamping seat 222, the fixed clamping seat 223, and the clamping claw 224 are all located inside the protective box 2211.

[0037] The take-up module 5 includes an AC motor 51 and a take-up reel 52 driven by the AC motor 51. The take-up reel 52 includes an active take-up roller 521 and a driven take-up roller 522 arranged opposite to each other. The active take-up roller 521 is connected to the AC motor 51 (a three-phase asynchronous AC motor) through a cloverleaf coupling 531. The driven take-up roller 522 is connected to a second servo motor 53 through a cloverleaf coupling 531. A take-up reel clamping opening is formed between the active take-up roller 521 and the driven take-up roller 522. In this configuration, the output shaft of the AC motor 51 drives the active take-up roller 521 to rotate. The plum blossom coupling 531 of the second servo motor 53 does not rotate, but maintains a certain torque in the opposite direction to the AC motor. When the fixed clamping mechanism of the second wire extension module 4 delivers the conductive wire core 6 into the take-up reel clamping opening of the take-up module 5, the driven take-up roller 522 will not be directly rotated and taken up by the active take-up roller 521. Instead, it will first bend the conductive wire core 6 that has entered the take-up reel clamping opening, so that it has a certain frictional force relative to the take-up reel 52. At this time, the reverse torque generated by the second servo motor 53 gradually decreases until it becomes 0. Finally, the active take-up roller 521 presses the conductive wire core 6, and the wire core 6 presses the driven take-up roller 522, thereby driving the driven take-up roller 522 to rotate, and finally completing the take-up action. Example 2

[0038] Based on Example 1, the adjustment method of the automatic cable cutting accuracy adjustment device described in Example 1 includes the following steps: Step 1: Move the cable cutting accuracy automatic adjustment device to the required working position using the fuma wheel 72 set at the bottom of the support frame 7.

[0039] Step 2: Start the motor driving the first counting wheel 111 to rotate. During the rotation of the first counting wheel 111, the conductive wire core 6 passing through it drives the second counting wheel 112 to rotate. During the rotation of the second counting wheel 112, the cam 12 is driven to rotate through the transmission mechanism. During the rotation of the cam 12, the push rod 13 moves linearly back and forth. When the tail end of the push rod 13 is intermittently located between the laser emitter and receiver of the laser beam sensor 14, it blocks the laser beam emitted by the laser emitter, causing the laser to periodically turn on and off, thereby indirectly calculating the number of revolutions of the counting wheel (one revolution of the counting wheel for each laser on and off), and thus calculating the length of the conductive wire core 6 passing through the wheel mechanism 11. The formula for calculating the length of the conductive wire core 6 passing through the wheel mechanism 11 is as follows:

[0040] In the formula, The counting length, in meters, represents the length of conductor core 6. Represents the diameter of the second counting wheel 112, in mm; This represents the number of revolutions the counting wheel has made.

[0041] Step 3: When the length of the conductive core 6 calculated in Step 2 reaches the preset length, the first wire-continuing module 2 and the second wire-continuing module 4 stop wire continuation, and the conductive core 6 is cut using the cutting module 3. In this embodiment, the conductive core 6 is a straight wire without any bends. After the conductive core 6 is cut using the cutting module 3, the wire feeding path of the previous section of conductive core 6 and the wire feeding path of the next section of conductive core 6 are the same straight wire feeding path, enabling end-to-end connection between the rear ends of the previous and next sections of conductive core 6 and avoiding gaps in the wire.

[0042] Step 4: Restart the first wire extension module 2 and the second wire extension module 4. The conductive wire core 6 is sent to the take-up reel clamping opening of the take-up module 5 through the fixing clamping mechanism of the second wire extension module 4. The driven take-up roller 522 first bends the conductive wire core 6 that has entered the take-up reel clamping opening, so that it has a certain frictional force relative to the take-up reel 52. The active take-up roller 521 presses the conductive wire core 6, and the wire core 6 presses the driven take-up roller 522, thereby driving the driven take-up roller 522 to rotate and realize the take-up action.

[0043] Step 5: Repeat steps 2-4 until all the winding actions are completed.

[0044] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 9 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0045] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0046] The above description is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic cable cutting accuracy adjustment device, characterized in that, Along the direction of conductor core delivery, the module sequentially includes a counting module, a first wire-continuing module, a cutting module, a second wire-continuing module, and a wire-taking module, wherein: The counting module includes a pair of wheels for conveying conductive wire cores, a cam that is driven to one of the counting wheels in the pair of wheels via a transmission mechanism, a push rod that is driven to the cam, and a laser beam sensor for sensing the push rod. The counting module converts the signal from the laser beam sensor into the length of the conductive wire core. The shearing module includes a linear drive structure and a grinding wheel that moves up and down under the linear drive structure, and the grinding wheel is rotated by a servo motor. The first and second wire-continuing modules have identical structures and are mirror images of each other. Both are slidably mounted via a lead screw module. Each wire-continuing module includes a positioning plate driven by the lead screw module and a fixing and clamping mechanism disposed on the positioning plate. The take-up module includes an AC motor and a take-up reel driven by the AC motor.

2. The automatic cable cutting accuracy adjustment device according to claim 1, characterized in that, The gear mechanism includes a first counting wheel and a second counting wheel with the same parameters. The first counting wheel and the second counting wheel are driven to rotate by a conductive wire core passing through them. The transmission mechanism includes a driving gear fixed to the bottom of the second counting wheel via a wheel axle and a driven gear fixed to the bottom of the cam via a wheel axle. The driving gear and the driven gear constitute a parallel shaft gear mechanism.

3. The automatic cable cutting accuracy adjustment device according to claim 1, characterized in that, The push rod is slidably mounted on the mounting base via a compression spring. One end of the push rod is rotatably connected to a roller, which is in constant contact with the cam profile surface. The other end of the push rod passes through the mounting base and is located between the light source and the receiver of the laser beam sensor.

4. The automatic cable cutting accuracy adjustment device according to claim 1, characterized in that, The axles of the first and second counting wheels are respectively mounted on an adjustable base. The adjustable base is detachably fixed to the mounting base by bolts. The distance between the first and second counting wheels is adjusted by a gear and rack mechanism. The gear and rack mechanism includes an adjusting gear and an upper rack and a lower rack meshing with it. The upper rack and the lower rack drive the two adjustable bases to move closer or further away.

5. The automatic cable cutting accuracy adjustment device according to claim 1, characterized in that, The grinding wheel is rotatably connected to the movable plate via a grinding wheel shaft. The first servo motor drives the grinding wheel shaft to rotate, and the movable plate is driven by a lead screw driven by a stepper motor.

6. The automatic cable cutting accuracy adjustment device according to claim 1, characterized in that, The fixed clamping mechanism includes a stepper motor, a gear transmission mechanism, a rotating clamping seat, a fixed clamping seat, and n clamping claws. The output end of the stepper motor is connected to the driving wheel of the gear transmission mechanism, and the driven wheel of the gear transmission mechanism is connected to the rotating clamping seat. The fixed clamping seat has n first grooves arranged in a circular matrix, and each clamping claw has a second groove. The rotating clamping seat has n conical holes arranged in a circular matrix. A linkage guide rod is inserted through the second groove. One end of the linkage guide rod is inserted into the conical hole, and the other end of the linkage guide rod is slidably embedded in the first groove.

7. The automatic cable cutting accuracy adjustment device according to claim 6, characterized in that, The rotating clamping seat, the fixed clamping seat, and the clamping claws are all located inside the protective box.

8. The automatic cable cutting accuracy adjustment device according to claim 1, characterized in that, The take-up reel includes an active take-up roller and a driven take-up roller arranged opposite to each other. The active take-up roller is connected to an AC motor through a cloverleaf coupling, and the driven take-up roller is connected to a second servo motor through a cloverleaf coupling. A take-up reel clamping opening is formed between the active take-up roller and the driven take-up roller.

9. The automatic cable cutting accuracy adjustment device according to claim 1, characterized in that, The counting module, the first yarn-continuing module, the shearing module, the second yarn-continuing module, and the yarn-taking module are respectively mounted on the mounting plate of the support frame.

10. The automatic cable cutting accuracy adjustment device according to claim 9, characterized in that, The support frame is composed of multiple square tubes.

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