Automatic wire clamping device for stranded wire production line
By installing an automatic wire clamping device on the stranded wire production line and using a pneumatic push device to drive the clamping block to clamp the wire, the quality problems caused by twisted wire retraction are solved, and a more stable and reliable wire clamping effect is achieved.
Patent Information
- Application Number
- CN202423306676.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-12-31
AI Technical Summary
When existing stranded wire equipment deals with high voltage conductors and split strand conductors, it lacks special wire clamping devices, which leads to the retraction of the conductor and causes quality problems such as wrinkling, overlapping and loose monofilaments of the outer layer of the conductor.
Design an automatic wire clamping device, including a support mechanism, a guide mechanism and wire clamping mechanism, and use a pneumatic pushing device to drive the two clips to move opposite to each other, clamp or loosen the stranded wire to ensure that the stranded wire is normally retracted. It is clamped in state.
It effectively avoids the problems of wrinkling, overlapping and loose single filaments of the outer layer of the conductor when each plate of the stranded wire is finished, improves the stability and reliability of the clamping wire and ensures product quality.
Smart Images
Figure CN222530102U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric wires and cables, in particular to an automatic wire clamping device used in a stranded wire production line. Background Art
[0002] In China, as a key equipment in the production of wires and cables, the stranding equipment is usually composed of multi-section stranding bodies, ground axis linkage (or independent motor control) system, gear traction device, drive motor, wrapping machine and take-up rack. Although this traditional stranding equipment design can meet basic production needs, it has significant technical defects in the production process of high-voltage conductors and conductors that need to be split into strands, especially when each conductor needs to be split after production.
[0003] Specifically, existing stranding equipment generally lacks a special wire clamp device in the take-up frame. In the process of producing high-voltage conductors and wrapping semi-conductive tapes or producing split strand block conductors, each time a coil of conductor is produced, the tension of the take-up frame must be loosened in order to separate the coils and disconnect the conductors. However, this operation often causes the conductor that has lost tension to shrink, which in turn causes a series of quality problems. For example, the semi-conductive tape will wrinkle and overlap due to the shrinkage of the conductor, seriously affecting the appearance and performance of the product; the monofilaments on the outer layer of the bare conductor may also become slightly loose due to shrinkage, resulting in an increase in the local outer diameter, which in turn affects the smooth progress of subsequent processing procedures. If these problems are not discovered and properly handled in time, the surface of the inner shield of the wire core will be uneven during the subsequent cross-linked three-layer co-extrusion process, and may even cause the wire core to break down. At the same time, the looseness and outer diameter changes of the outer monofilaments will also cause the inner shield layer to sink and the local outer diameter to increase, posing a serious threat to product quality.
[0004] In order to deal with the above problems, some manufacturers have taken temporary remedial measures, such as using binding tape or rope to bundle the conductor in advance and tie it to the traction guardrail to prevent the conductor from retracting after the tension of the take-up frame is released. However, although this method can reduce the retraction phenomenon to a certain extent, it often causes the conductor to be slightly bent due to excessive retraction force, which also affects product quality. In addition, some manufacturers have tried to use self-made small clamps, but because the design principle failed to fully consider the natural curvature of the conductor in the normal take-up state, and the installation position of the clamp was not reasonable, the clamping effect was not ideal and the problem could not be fundamentally solved.
[0005] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content
[0006] The utility model provides an automatic wire clamping device for a stranded wire production line, which is used to solve the quality problems of wrinkling and overlapping of the wrapping tape and slight looseness of the outer monofilament of the conductor caused by releasing the tension of the take-up frame when each coil of stranded wire is segmented in the existing stranded wire production process.
[0007] The utility model provides an automatic wire clamping device used in a stranding production line, comprising:
[0008] Support mechanism;
[0009] A guide mechanism, arranged on the top of the support mechanism, through which the strands are wound and extend in a preset direction;
[0010] A wire clamping mechanism is arranged on one side of the supporting mechanism, the stranded wire is passed through the wire clamping mechanism and is clamped and fixed by the wire clamping mechanism;
[0011] The wire clamping mechanism of the utility model comprises a pushing device, a first clamping block, a second clamping block and a shaft rod, wherein the first clamping block and the second clamping block are arranged opposite to each other along the pushing direction of the pushing device, and the shaft rod passes through the first clamping block and the second clamping block in sequence along the pushing direction of the pushing device and is fixedly connected to the pushing end of the pushing device;
[0012] Wherein, the first clamping block is fixed on the supporting mechanism and movably connected with the shaft, the second clamping block is fixed on the shaft, and the shaft drives the second clamping block to move toward or away from the first clamping block through the pushing of the pushing device, thereby clamping or loosening the stranded wire;
[0013] The pushing device of the utility model includes a cylinder, an air pressure regulating valve, a first air pipe, a second air pipe, a third air pipe, a fourth air pipe and a switch. The cylinder is installed on the supporting mechanism, and the switch is arranged on the cylinder. One end of the first air pipe is connected to the first port on the top of the cylinder, and the other end of the first air pipe is connected to the switch; one end of the second air pipe is connected to the switch, and the other end of the second air pipe is connected to the second port at the bottom of the cylinder; one end of the third air pipe is connected to the switch, and the other end of the third air pipe is connected to one end of the fourth air pipe through the air pressure regulating valve, and the other end of the fourth air pipe is connected to the air station.
[0014] According to the automatic wire clamping device used in the stranding production line provided by the utility model, it also includes a control line and an equipment operation screen, the two ends of the control line are respectively connected to the switch and the equipment operation screen, and the equipment operation screen controls the opening or closing of the pushing device through the control line.
[0015] According to the automatic wire clamping device used in a stranded wire production line provided by the utility model, rubber pads are provided on opposite sides of the first clamping block and the second clamping block, and the first clamping block and the second clamping block clamp and fix the stranded wire respectively through the rubber pads.
[0016] According to the automatic wire clamping device used in a stranding production line provided by the utility model, the guide mechanism includes a guide wheel and a bearing, the bearing is installed at the central axis of the guide wheel, and the bearing is fixed to the top of the support mechanism through a first connecting member.
[0017] According to the automatic wire clamping device used in a stranding production line provided by the utility model, the automatic wire clamping device is located between the wrapping machine and the wire take-up frame of the stranding production line, and the stranded wire is guided by the guide wheel and then extends along the wire take-up direction of the wire take-up frame.
[0018] According to the automatic wire clamping device used in a stranding production line provided by the utility model, the wire clamping mechanism is located on a side of the supporting mechanism close to the wire take-up frame.
[0019] According to the automatic wire clamping device used in a stranding production line provided by the utility model, the supporting mechanism includes a column and a side plate, the guiding mechanism is fixed on the top of the column, the bottom of the column is fixed on the ground or a work surface, the side plate is fixed on one side of the column, and the wire clamping mechanism is installed on the side plate.
[0020] According to the automatic wire clamping device used in a stranding production line provided by the utility model, the support mechanism also includes a first fixing plate and a second fixing plate, and both ends of the side plate are fixed to the column through the first fixing plate and the second fixing plate respectively.
[0021] The above technical solution of the utility model has the following beneficial effects:
[0022] The automatic wire clamping device used in the stranded wire production line provided by the utility model can ensure that the stranded wire is clamped by the wire clamping mechanism when the stranded wire is normally reeled and straightened by arranging a guide mechanism and a wire clamping mechanism on the support mechanism, thereby avoiding the quality problems of wrinkling and overlapping of the wrapping tape and slight loosening of the outer monofilament of the conductor caused by the release of the tension of the reeling frame when each reel of the stranded wire is segmented. In addition, by arranging the wire clamping mechanism so that the two clamping blocks are driven by a pneumatic driving device to move relative to or opposite to each other to achieve clamping or loosening of the stranded wire, the use of this pneumatic clamping method can improve the stability and reliability of the wire clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0024] Figure 1 A schematic structural diagram of an automatic wire clamping device for use in a stranding production line provided in an embodiment of the utility model.
[0025] Reference numerals:
[0026] 1. Bearing; 2. Guide wheel; 3. First connecting piece; 4. Shaft; 5. First clamp; 6. Rubber pad; 7. First air pipe; 8. Cylinder; 9. Second air pipe; 10. First fixing plate; 11. Air pressure regulating valve; 12. Fastening screw; 13. Second connecting piece; 14. Second fixing plate; 15. Control line; 16. Switch; 17. Twisted wire; 18. Column; 19. Fourth air pipe; 20. Side panel; 21. Second clamp; 22. Third air pipe; 100. Pushing device. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] See also Figure 1 The utility model provides an automatic wire clamping device used in a stranded wire production line. The automatic wire clamping device is located between a wrapping machine and a wire take-up frame of the stranded wire production line. The automatic wire clamping device is used to clamp and fix the stranded wire when each coil of stranded wire is segmented, thereby avoiding the quality problems of wrinkling and overlapping of the wrapping tape and slight looseness of the outer monofilament of the conductor caused by the wire take-up frame loosening the stranded wire.
[0029] The automatic wire clamping device includes a supporting mechanism, a guiding mechanism and a wire clamping mechanism. The guiding mechanism is arranged on the top of the supporting mechanism, and the stranded wire 17 is wound around the guiding mechanism and extends along a preset direction. The wire clamping mechanism is arranged on one side of the supporting mechanism, and the stranded wire 17 is passed through the wire clamping mechanism and is clamped and fixed by the wire clamping mechanism.
[0030] Specifically, the supporting mechanism includes a column 18 and a side panel 20 , the guide mechanism is fixed to the top of the column 18 , the bottom of the column 18 is fixed to the ground or work surface by fastening screws 12 , the side panel 20 is fixed to one side of the column 18 , and the wire clamping mechanism is installed on the side panel 20 .
[0031] Furthermore, the supporting mechanism further includes a first fixing plate 10 and a second fixing plate 14 , and both ends of the side plate 20 are fixed to the column 18 through the first fixing plate 10 and the second fixing plate 14 respectively.
[0032] The guide mechanism includes a guide wheel 2 and a bearing 1. The bearing 1 is installed at the central axis of the guide wheel 2. The bearing 1 is fixed to the top of the column 18 of the support mechanism through a first connecting member 3 (such as a connecting screw). The guide wheel 2 is rotatably connected to the column 18 through the bearing 1 and the first connecting member 3. The stranded wire 17 can be wound around the guide wheel 2, and the stranded wire 17 extends along the winding direction of the winding frame after being guided by the guide wheel 2. Through the setting of the guide mechanism, the stranded wire 17 can be clamped in a normally taut state. The clamped stranded wire 17 meets the stranded wire curvature in the normal winding state, thereby achieving a better clamping effect.
[0033] The wire clamping mechanism is located on one side of the supporting mechanism close to the wire take-up frame. The wire clamping mechanism includes a pushing device 100, a first clamping block 5, a second clamping block 21 and a shaft 4. The pushing device 100 is installed on the side plate 20. The pushing device 100 is used to generate a driving force along the extension direction of the column 18. The first clamping block 5 and the second clamping block 21 are arranged opposite to each other along the pushing direction of the pushing device 100. The shaft 4 passes through the first clamping block 5 and the second clamping block 21 in sequence along the pushing direction of the pushing device 100 and is fixedly connected to the pushing end of the pushing device 100.
[0034] The first clamp block 5 can be fixed to the side plate 20 of the support mechanism through the second connecting member 13 (such as a connecting screw) and is movably connected to the shaft 4. The second clamp block 21 is located below the first clamp block 5 and is fixed to the shaft 4. The shaft 4 is driven by the pushing device 100 to drive the second clamp block 21 to move toward or away from the first clamp block 5, thereby clamping or loosening the stranded wire 17.
[0035] In one embodiment, the pushing device 100 includes a cylinder 8, an air pressure regulating valve 11, a first air pipe 7, a second air pipe 9, a third air pipe 22, a fourth air pipe 19, and a switch 16 (e.g., a manual switch). The cylinder 8 is mounted on the side plate 20 of the supporting mechanism, the switch 16 is disposed on the cylinder 8, one end of the first air pipe 7 is connected to the first port at the top of the cylinder 8, and the other end of the first air pipe 7 is connected to the switch 16. One end of the second air pipe 9 is connected to the switch 16, and the other end of the second air pipe 9 is connected to the second port at the bottom of the cylinder 8. One end of the third air pipe 22 is connected to the switch 16, and the other end of the third air pipe 22 is connected to one end of the fourth air pipe 19 through the air pressure regulating valve 11, and the other end of the fourth air pipe 19 is connected to the air station.
[0036] Furthermore, rubber pads 6 are provided on opposite sides of the first clamp block 5 and the second clamp block 21. The first clamp block 5 and the second clamp block 21 clamp and fix the stranded wire 17 respectively through the rubber pads 6. The rubber pads 6 can ensure that the stranded wire 17 is not damaged while being clamped.
[0037] When the automatic wire clamping device is in use, the device automatically clamps when the switch 16 is pulled out, and automatically opens when the switch 16 is pressed in. The switch 16 has a built-in pneumatic valve to control the opening and closing actions of the cylinder 8.
[0038] A pneumatic driving device is used to drive the two clamping blocks to move relative to or away from each other to achieve clamping or loosening of the twisted wire. This is not only simple to operate and highly sensitive, but also can improve the stability and reliability of the wire clamping mechanism.
[0039] Furthermore, the automatic wire clamping device also includes a control line 15 and an equipment operation screen. The two ends of the control line 15 are respectively connected to a switch 16 and the equipment operation screen. The equipment operation screen controls the opening or closing of the pushing device 100 through the control line 15.
[0040] The automatic wire clamping device can be connected to the equipment operation panel to realize three functions: "linked", "single action" and "manual". The "linked" mode can realize the automatic shutdown and clamping of each coil of stranded wire (conductor) after the set length is reached; the "single action" mode can realize the independent control of the opening and clamping status of the automatic wire clamping device on the equipment operation panel, which can be used for employees to take a break or when the equipment is shut down for cleaning during shift changes; the "manual" mode can be used to independently operate the opening and closing of the automatic wire clamping device.
[0041] The automatic wire clamping device is simple and convenient to operate. It solves the problem of overlapping and wrinkling of the semi-conductive tape caused by the shrinkage of the stranded wire conductor that often occurs when the tension of the take-up frame is released to disconnect the stranded wire after the stranded wire production is completed, thereby avoiding the risk of wire core breakdown.
[0042] In addition, the use of this automatic wire clamping device solves the problem of compressed round conductors and split strand block conductors that do not need to be wrapped with semi-conductive tape, causing the conductor to shrink and the outer monofilament of the conductor to become slightly loose due to the release of the take-up frame tension before separation. This avoids the risk of the inner shield sinking in and the local outer diameter of the wire core becoming larger after three-layer co-extrusion.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. An automatic wire clamping device used in a stranding production line, characterized in that: include: Support mechanism; A guide mechanism, arranged on the top of the support mechanism, through which the strands are wound and extend in a preset direction; A wire clamping mechanism is arranged on one side of the supporting mechanism, the stranded wire is passed through the wire clamping mechanism and is clamped and fixed by the wire clamping mechanism; The wire clamping mechanism comprises a pushing device, a first clamping block, a second clamping block and a shaft rod, wherein the first clamping block and the second clamping block are arranged opposite to each other along the pushing direction of the pushing device, and the shaft rod passes through the first clamping block and the second clamping block in sequence along the pushing direction of the pushing device and is fixedly connected to the pushing end of the pushing device; Wherein, the first clamping block is fixed on the supporting mechanism and movably connected with the shaft, the second clamping block is fixed on the shaft, and the shaft drives the second clamping block to move toward or away from the first clamping block through the pushing of the pushing device, thereby clamping or loosening the stranded wire; The pushing device includes a cylinder, an air pressure regulating valve, a first air pipe, a second air pipe, a third air pipe, a fourth air pipe and a switch. The cylinder is installed on the supporting mechanism, and the switch is arranged on the cylinder. One end of the first air pipe is connected to the first port on the top of the cylinder, and the other end of the first air pipe is connected to the switch; one end of the second air pipe is connected to the switch, and the other end of the second air pipe is connected to the second port at the bottom of the cylinder; one end of the third air pipe is connected to the switch, and the other end of the third air pipe is connected to one end of the fourth air pipe through the air pressure regulating valve, and the other end of the fourth air pipe is connected to the air station.
2. The automatic wire clamping device for use in a stranding production line according to claim 1, characterized in that: It also includes a control line and an equipment operation screen, wherein two ends of the control line are respectively connected to the switch and the equipment operation screen, and the equipment operation screen controls the opening or closing of the pushing device through the control line.
3. The automatic wire clamping device for use in a stranding production line according to claim 1, characterized in that: The first clamping block and the second clamping block are provided with rubber pads on opposite sides thereof, and the first clamping block and the second clamping block clamp and fix the stranded wires respectively through the rubber pads.
4. The automatic wire clamping device for use in a stranding production line according to claim 1, characterized in that: The guide mechanism comprises a guide wheel and a bearing, wherein the bearing is mounted on the central axis of the guide wheel, and the bearing is fixed to the top of the support mechanism through a first connecting member.
5. The automatic wire clamping device for use in a stranding production line according to claim 4, characterized in that: The automatic wire clamping device is located between the wrapping machine and the wire take-up frame of the stranded wire production line. The stranded wire is guided by the guide wheel and then extends along the wire take-up direction of the wire take-up frame.
6. The automatic wire clamping device for use in a stranding production line according to claim 5, characterized in that: The wire clamping mechanism is located on a side of the supporting mechanism close to the wire take-up frame.
7. The automatic wire clamping device for use in a stranding production line according to claim 1, characterized in that: The supporting mechanism comprises a column and a side plate, the guiding mechanism is fixed on the top of the column, the bottom of the column is fixed on the ground or a work surface, the side plate is fixed on one side of the column, and the wire clamping mechanism is installed on the side plate.
8. The automatic wire clamping device for use in a stranding production line according to claim 7, characterized in that: The supporting mechanism further includes a first fixing plate and a second fixing plate, and both ends of the side plate are fixed to the column through the first fixing plate and the second fixing plate respectively.