Cable stripping machine

Abstract

The invention relates to the technical field of cable processing equipment, and discloses a cable stripping machine which comprises a C-shaped shell, cable clamps are arranged at the two ends of the C-shaped shell, a C-shaped support is arranged in the C-shaped shell in a rotating connection mode, a tool rest is arranged on the inner ring of the C-shaped support in a radial sliding mode, a cable is placed in the device through the C-shaped shell and the C-shaped support, and the cable clamps center and clamp the two ends of the cable. The C-shaped support rotates to drive the knife rest to conduct girdling around the cable. Compared with the prior art, the cable stripping device has the advantages that the whole device is provided with a C-shaped opening design, the cable loading and unloading convenience is greatly improved, the middle of a cable with the fixed end can be stripped, the knife rest can perform rotary ring cutting and radial displacement at the same time, so that the cutting depth is adjusted, and the cable stripping device is adaptive to cables of various specifications without manual operation; and meanwhile, continuous operation can be achieved, and the efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of cable processing equipment technology, specifically to a cable stripping machine. Background Technology

[0002] Cable stripping machines are automated / semi-automated devices used to strip the outer insulation, sheath, or shielding layer of cables. They are widely used in power engineering, communication cabling, and electronics manufacturing. Their core function is to precisely remove the outer material of a cable using cutting tools such as blades without damaging the internal conductor. When a section of a cable malfunctions due to damage, aging, or short circuits, and the entire cable does not need to be replaced, the insulation of the faulty section is stripped for repair. In some power or communication systems, it is necessary to branch off from the middle of a main cable to supply power or transmit signals to other equipment. This requires branch lines to be drawn from the middle conductor without cutting the main cable, achieving a "T-type" or "Y-type" connection.

[0003] Cable stripping machines typically perform circumferential or axial cutting along the length. Existing circumferential stripping machines are usually closed structures, such as tubular structures, to accommodate the cutter adjustment mechanism in order to achieve adjustable cutting depth. The cable needs to be inserted from one end. Therefore, existing automated stripping equipment can only strip the cable ends and cannot strip the middle of the cable where the ends are already fixed. Currently, the tools that can strip the middle of the cable are usually manual.

[0004] Different cables have significantly different outer layer thicknesses, requiring precise adjustment of the cutting depth. Existing manual tools for stripping the middle of cables have limited precision in adjusting the cutting depth. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that existing automatic cable stripping machines cannot strip cables with fixed ends, and manual stripping tools do not have a high-precision automatic cutting depth adjustment structure. The present invention provides a cable stripping machine.

[0006] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a cable stripping machine, including a C-shaped shell, cable clamps at both ends of the C-shaped shell, a C-shaped bracket rotatably connected inside, a blade holder radially sliding on the inner ring of the C-shaped bracket, a cable being placed into the device through the C-shaped shell and the C-shaped bracket, the cable clamps centering and clamping the two ends of the cable, a cutting blade being installed on the blade holder, and the rotation of the C-shaped bracket driving the blade holder to perform circumferential cutting around the cable.

[0007] Both sides of the C-shaped bracket are equipped with guide rods and adjustable guide rails. A C-shaped follower ring is slidably connected on the guide rod, and an adjustable slider is provided on the adjustable guide rail. A connecting rod is provided between the tool holder and the adjustable slider. One end of the connecting rod is hinged to the tool holder, and the other end is hinged to the adjustable slider. The adjustable slider is connected to the C-shaped follower ring. The tool holder can be made to slide radially by axially moving the C-shaped follower ring.

[0008] Furthermore, the C-shaped bracket is equipped with limit slide rails on both sides, and the tool holder is equipped with a tool holder slider that cooperates with the limit slide rails.

[0009] Furthermore, the C-shaped housing has C-shaped slip rings slidably mounted at both ends inside, and a C-shaped follower ring is nested inside the C-shaped slip rings. A lead screw is provided at the top inside the C-shaped housing, and the lead screw is threadedly engaged with the C-shaped slip rings to drive the C-shaped slip rings to move axially.

[0010] Furthermore, an adjustable pitch motor is provided on the outer top of the C-shaped housing. The output shaft of the adjustable pitch motor extends into the C-shaped housing and is provided with an adjustable pitch gear one. An adjustable pitch gear two that meshes with the adjustable pitch gear one is provided in the middle of the lead screw.

[0011] Furthermore, a transmission box is provided in the middle of the C-shaped housing, and a ring-cutting motor is provided outside the transmission box. The output shaft of the ring-cutting motor extends into the transmission box and is provided with a second ring-cutting gear. A transmission gear that meshes with the second ring-cutting gear is provided inside the transmission box.

[0012] Furthermore, the C-shaped housing is provided with a plurality of ring-cutting gears circumferentially, and the outer ring of the C-shaped bracket is provided with a C-shaped toothed ring that meshes with the ring-cutting gears 1, and the transmission gear meshes with the ring-cutting gears 1.

[0013] Furthermore, the two ends of the circumferential gear are rotatably connected to limiting rollers, which abut against the outer ring of the C-shaped bracket.

[0014] Furthermore, a rack is slidably provided inside the transmission box, a connecting plate is provided at the end of the rack, and extension rods are provided at both ends of the connecting plate, with the ends of the extension rods connected to the cable clamps.

[0015] Furthermore, the transmission box is equipped with a clamping motor, the output end of which extends into the transmission box and is equipped with a clamping gear, which meshes with the rack.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The device features a C-shaped opening design, which greatly improves the ease of cable installation and removal, and allows for stripping of the middle section of cables that have been fixed at the ends.

[0018] The blade holder can rotate for circumferential cutting while also moving radially to adjust the cutting depth. It is compatible with various cable specifications, and the corresponding adjustment mechanism will not interfere with the circumferential cutting motion of the blade holder.

[0019] Clamping, spacing adjustment, and circumferential cutting are all driven by motors, and automated control is achieved through transmission structures such as gears and lead screws. No manual operation is required, reducing human error. At the same time, continuous operation is possible, and efficiency is significantly improved compared to manual or semi-automatic equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the cable clamp of the present invention.

[0022] Figure 3 This is a schematic diagram of the C-type slip ring of the present invention.

[0023] Figure 4 This is a schematic diagram of the internal structure of the present invention.

[0024] Figure 5 This is a schematic diagram of the rack structure of the present invention.

[0025] Figure 6 This is a schematic diagram of the transmission of the ring-cut gear of the present invention.

[0026] Figure 7 This is a schematic diagram of the C-type bracket of the present invention.

[0027] Figure 8 This is a schematic diagram illustrating how the present invention reduces the cutting depth.

[0028] Figure 9 This is a schematic diagram of the structure for increasing the cutting depth according to the present invention.

[0029] Figure 10 This is a schematic diagram of the linkage structure of the tool holder of the present invention.

[0030] Figure 11 This is a schematic diagram of the thickness measuring slider of the present invention.

[0031] Figure 12 This is a schematic diagram of the operation of the eddy current probe of the present invention.

[0032] Figure 13 This is a schematic diagram of the removal of the thickness measuring slider of the present invention.

[0033] As shown in the figure: 1. C-shaped housing, 2. Transmission box, 3. Cable clamp, 4. Ring cutting motor, 5. C-shaped slip ring, 6. Lead screw, 7. Adjustable pitch motor, 8. Adjustable pitch gear one, 9. Adjustable pitch gear two, 10. C-shaped follower ring, 11. Clamping gear, 12. Rack, 13. Connecting plate, 14. Clamping motor, 15. Limiting roller, 16. C-shaped bracket, 17. C-shaped toothed ring, 18. Ring cutting gear one, 19. Ring cutting gear two, 20. Transmission gear, 21. Guide rod, 22. Adjustable pitch guide rail, 23. Limiting slide rail, 24. Tool holder, 25. Adjustable pitch slider, 26. Connecting rod, 27. Tool holder slider, 28. Extension rod, 29. Thickness measuring slider, 30. Compensation slider, 31. Roller, 32. Eddy current probe, 33. Compensation guide rod, 34. Thickness measuring slide rail. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings.

[0035] Combined with appendix Figure 1 Appendix Figure 2 and attached Figure 8 A cable stripping machine includes a C-shaped housing 1, cable clamps 3 at both ends of the C-shaped housing 1, a C-shaped bracket 16 rotatably connected inside, and a blade holder 24 radially sliding on the inner ring of the C-shaped bracket 16. The cable is placed into the device through the C-shaped housing 1 and the C-shaped bracket 16. The cable clamps 3 center and clamp the two ends of the cable. A cutting blade is installed on the blade holder 24. The rotation of the C-shaped bracket 16 drives the blade holder 24 to perform circumferential cutting around the cable.

[0036] Combined with appendix Figure 7 Appendix Figure 8 Appendix Figure 9 and attached Figure 10 The C-shaped bracket 16 has guide rods 21 and adjustable guide rails 22 on both sides. A C-shaped follower ring 10 is slidably connected on the guide rod 21. An adjustable slider 25 is provided on the adjustable guide rail 22. A connecting rod 26 is provided between the tool holder 24 and the adjustable slider 25. One end of the connecting rod 26 is hinged to the tool holder 24, and the other end is hinged to the adjustable slider 25. The adjustable slider 25 is connected to the C-shaped follower ring 10. The tool holder 24 can be radially slid by axially moving the C-shaped follower ring 10. Limiting slide rails 23 are provided on both sides of the C-shaped bracket 16. A tool holder slider 27 that cooperates with the limiting slide rails 23 is provided on the tool holder 24. C-shaped slip rings 5 ​​are axially slidably provided at both ends inside the C-shaped outer shell 1. The C-shaped follower ring 10 is rotatably nested in the C-shaped slip ring 5. A lead screw 6 is provided at the top inside the C-shaped outer shell 1. The lead screw 6 is threadedly engaged with the C-shaped slip ring 5 to drive the C-shaped slip ring 5 to move axially.

[0037] By making the C-shaped follower ring 10 slide axially, the connecting rod 26 can drive the tool holder 24 to slide radially, thereby changing the distance from the cutting blade on the tool holder 24 to the center of the circumferential cutting circle, thus adjusting the cutting depth. Since the C-shaped follower ring 10 will rotate synchronously with the C-shaped support 16 during the circumferential cutting rotation, the rotation of the C-shaped follower ring 10 can be decoupled by the rotational nesting connection between the C-shaped slip ring 5 and the C-shaped follower ring 10. Thus, by sliding the C-shaped slip ring 5, the C-shaped follower ring 10 can be axially displaced without interfering with the rotational movement of the C-shaped follower ring 10.

[0038] Combined with appendix Figure 8 and attached Figure 9 As can be seen, in the above structure, when the C-type slip ring 5 and the C-type follower ring 10 are close to the C-type bracket 16, they can drive the tool holder 24 to move radially outward, which reduces the cutting depth. When the C-type slip ring 5 and the C-type follower ring 10 are far away from the C-type bracket 16, they can drive the tool holder 24 to move radially inward, which increases the cutting depth.

[0039] Combined with appendix Figure 5 The C-shaped housing 1 has an adjustable motor 7 on its top outer side. The output shaft of the adjustable motor 7 extends into the C-shaped housing 1 and is equipped with an adjustable gear 8. The middle part of the lead screw 6 is equipped with an adjustable gear 9 that meshes with the adjustable gear 8. The adjustable motor 7 drives the lead screw 6 to rotate through the adjustable gear 8 and the adjustable gear 9, thereby realizing the sliding movement of the C-shaped slip ring 5. Since both ends of the C-shaped housing 1 are equipped with C-shaped slip rings 5, in the specific implementation of the above structure, the lead screw 6 is selected to have reverse threads at both ends, so that when the lead screw 6 rotates, the sliding directions of the C-shaped slip rings 5 ​​at both ends inside the C-shaped housing 1 are opposite.

[0040] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 11 Appendix Figure 12 and attached Figure 13 A thickness measuring slide rail 34 is provided on one end of the C-shaped outer shell 1. A thickness measuring slider 29 is slidably mounted inside the thickness measuring slide rail 34. A roller 31 is provided at the end of the thickness measuring slider 29. A compensation guide rod 33 is provided on the side of the thickness measuring slider 29. The directions of the compensation guide rod 33 and the thickness measuring slide rail 34 are both pointing towards the rotation center of the C-shaped bracket 16. A compensation slider 30 is provided on the compensation guide rod 33. An eddy current probe 32 is provided at the root of the compensation slider 30. A spring is provided at the root of the thickness measuring slide rail 34 to push the thickness measuring slider 29 toward the rotation center of the C-shaped bracket 16. A spring is provided at the root of the compensation guide rod 33 to push the compensation slider 30 toward the rotation center of the C-shaped bracket 16.

[0041] Since this device can be used to strip the insulation layer of cables of different specifications, and the insulation layer thickness of cables of different specifications is different, the cutting depth of the cutter 24 needs to be adjusted according to the outer diameter of the cable and the insulation layer thickness. By placing the eddy current probe 32 tightly against the outer surface of the insulation layer, the excitation magnetic field generated by the eddy current probe 32 causes the inner conductor of the cable to generate a corresponding induced magnetic field. Then, the intensity of the induced magnetic field is detected by the induction coil inside the eddy current probe 32, thereby determining the distance from the inner conductor of the cable to the eddy current probe 32, and thus knowing the insulation layer thickness.

[0042] When this device is used to strip the insulation layer of cables with different outer diameters, the springs at the base of the thickness measuring slider 29 and the thickness measuring slide rail 34 can make the roller 31 press against the outer surface of the cable, thus adapting to cables with different outer diameters. Since the insulation layer materials used in different specifications of cables are different, the elastic deformation and indentation amplitude of the insulation layer when the roller 31 presses against it are also different, which may cause the eddy current probe 32 to fail to press against the insulation layer. Therefore, the eddy current probe 32 is installed on the compensation slider 30 to keep a certain distance between the eddy current probe 32 and the deformation area. A low K-value spring is selected at the base of the compensation guide rod 33 to provide buffer for the compensation slider 30, preventing the eddy current probe 32 from being damaged by excessive compression against the insulation layer.

[0043] Since the eddy current probe 32 requires calibration, the following steps can be taken to facilitate the calibration process: Figure 13 As shown, the thickness measuring slider 29 is pulled out of the thickness measuring slide rail 34 for calibration.

[0044] In the specific implementation of the above structure, in order to further ensure the adjustment accuracy of the cutting depth, the pitch adjustment motor 7 should be a servo motor and equipped with corresponding control equipment and software. At the same time, the C-type slip ring 5 and the compensation slider 30 need to be equipped with a grating ruler or magnetic grating ruler for online monitoring of displacement distance. The axial displacement distance of the C-type slip ring 5 is controlled by the external control equipment and software based on the position information of the compensation slider 30 and the insulation layer thickness information measured by the eddy current probe 32, thereby adjusting the radial displacement distance of the tool holder 24 and adjusting the cutting depth. This achieves closed-loop control of the pitch adjustment motor 7. The above devices are all mature existing technologies and will not be described further in this application.

[0045] Combined with appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and attached Figure 6 The C-shaped outer shell 1 has a transmission box 2 in the middle, and a ring cutting motor 4 is provided outside the transmission box 2. The output shaft of the ring cutting motor 4 extends into the transmission box 2 and is provided with a ring cutting gear 19. A transmission gear 20 that meshes with the ring cutting gear 19 is provided inside the transmission box 2. Multiple ring cutting gears 18 are arranged around the inside of the C-shaped outer shell 1. A C-shaped toothed ring 17 that meshes with the ring cutting gear 18 is provided on the outer ring of the C-shaped bracket 16. The transmission gear 20 meshes with the ring cutting gear 18.

[0046] When implementing the above transmission structure, special attention must be paid to the gear ratios between the gears and the specific number of ring gears 18. These parameters should be determined through scientific and reasonable calculation and matching based on the overall dimensions of the C-shaped bracket 16 and the specific size of its notches. Specifically, the notch size of the C-shaped gear ring 17 must be completely consistent with the notch of the C-shaped bracket 16 to ensure the coordinated operation of the entire transmission system. In the entire transmission device, not all ring gears 18 can directly obtain power from the ring gear 19; only ring gears 18 at specific positions can transmit power to the C-shaped gear ring 17 through the intermediary action of the transmission gear 20. Because the C-shaped gear ring 17 has a notch structure, when this notch rotates to a position aligned with the ring gear 18 currently transmitting power, power transmission will be interrupted. To avoid this, the gear ratio between the transmission gear 20 and the ring gears 18 must be carefully designed to ensure that the transmission gear 20 can simultaneously maintain meshing with multiple ring gears 18. Simultaneously, the gear ratio between transmission gear 20 and ring gear 19 needs to be precisely calculated to ensure that ring gear 19 can simultaneously drive multiple transmission gears 20. This multi-meshing design allows multiple ring gears 18 to obtain power from ring gear 19. The advantage of this design is that regardless of the angle at which the notch of the C-ring 17 rotates, the system always ensures that at least one ring gear 18 remains meshed with the C-ring 17, thus achieving continuous and stable power transmission and ensuring the reliable operation of the entire transmission system.

[0047] Combined with appendix Figure 4 and attached Figure 5 The two ends of the ring gear 18 are rotatably connected to the limiting rollers 15. The limiting rollers 15 abut against the outer ring of the C-shaped bracket 16. During the rotation of the C-shaped bracket 16, the limiting rollers 15 rotatably connected to the two ends of the ring gear 18 abut against the outer ring of the C-shaped bracket 16, which plays a role in limiting and stabilizing.

[0048] Combined with appendix Figure 1 Appendix Figure 4 and attached Figure 5 The transmission box 2 is equipped with a rack 12 that slides inside. The rack 12 has a connecting plate 13 at its end. The connecting plate 13 has extension rods 28 at both ends. The ends of the extension rods 28 are connected to the cable clamps 3. The transmission box 2 is equipped with a clamping motor 14. The output end of the clamping motor 14 extends into the transmission box 2 and is equipped with a clamping gear 11. The clamping gear 11 meshes with the rack 12.

[0049] In actual use, when it is necessary to strip the cable, first put the cable into the device through the notch of the C-shaped shell 1 and the C-shaped bracket 16, start the clamping motor 14, the clamping motor 14 drives the clamping gear 11 to rotate, the clamping gear 11 meshes with the rack 12, thereby driving the rack 12 to slide in the transmission box 2. The rack 12, through the connecting plate 13 and the extension rod 28, makes the cable clamp 3 center and clamp the two ends of the cable, ensuring the stability of the cable during the stripping process.

[0050] Next, the pitch-adjusting motor 7 is controlled, which drives the pitch-adjusting gear 8 to rotate. The pitch-adjusting gear 8 meshes with the pitch-adjusting gear 9, which in turn drives the lead screw 6 to rotate. The lead screw 6 is threadedly engaged with the C-type slip ring 5, driving the C-type slip ring 5 to move axially. The C-type follower ring 10 rotates and is nested inside the C-type slip ring 5, and moves axially together with the C-type slip ring 5. By moving the C-type follower ring 10 axially, the cutter holder 24 can slide radially, thereby adjusting the cutting depth of the cutting blade on the cutter holder 24 to meet the stripping requirements of cables of different specifications.

[0051] Then, the ring cutting motor 4 is started, which drives the second ring cutting gear 19 to rotate. The second ring cutting gear 19 meshes with the transmission gear 20, which in turn meshes with the first ring cutting gear 18, thereby driving multiple first ring cutting gears 18 to rotate. The first ring cutting gear 18 meshes with the C-shaped toothed ring 17 on the outer ring of the C-shaped bracket 16, thereby driving the C-shaped bracket 16 to rotate. The rotation of the C-shaped bracket 16 drives the knife holder 24 to perform ring cutting around the cable, realizing the cable stripping operation.

[0052] The present invention and its embodiments have been described above. This description is not restrictive, and the actual structure is not limited thereto. In conclusion, if those skilled in the art, inspired by this description, design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the scope of protection of this invention.

Claims

1. A cable stripping machine, comprising a C-shaped housing (1), cable clamps (3) at both ends of the C-shaped housing (1), and a C-shaped bracket (16) rotatably connected inside, wherein the cable clamps (3) center and clamp the two ends of the cable, characterized in that: The inner ring of the C-type bracket (16) is radially slidably equipped with a knife holder (24). The cable is placed into the device through the C-type outer shell (1) and the C-type bracket (16). A cutting knife is installed on the knife holder (24). The C-type bracket (16) rotates to drive the knife holder (24) to perform circumferential cutting around the cable. The C-shaped housing (1) has C-shaped slip rings (5) that slide axially at both ends inside. A C-shaped follower ring (10) is rotatably sleeved inside the C-shaped slip ring (5). A lead screw (6) is provided at the top inside the C-shaped housing (1). The lead screw (6) and the C-shaped slip ring (5) are threaded together to drive the C-shaped slip ring (5) to move axially.

2. The cable stripping machine according to claim 2, characterized in that: The C-shaped bracket (16) is provided with guide rods (21) and adjustable guide rails (22) on both sides. The C-shaped follower ring (10) is slidably connected on the guide rods (21). The adjustable guide rail (22) is provided with an adjustable slider (25). A connecting rod (26) is provided between the tool holder (24) and the adjustable slider (25). One end of the connecting rod (26) is hinged to the tool holder (24), and the other end is hinged to the adjustable slider (25). The adjustable slider (25) is connected to the C-shaped follower ring (10). The tool holder (24) can be made to slide radially by axially moving the C-shaped follower ring (10).

3. The cable stripping machine according to claim 2, characterized in that: The C-shaped housing (1) has an adjustable pitch motor (7) on its top outer side. The output shaft of the adjustable pitch motor (7) extends into the C-shaped housing (1) and is equipped with an adjustable pitch gear one (8). The middle part of the lead screw (6) is equipped with an adjustable pitch gear two (9) that meshes with the adjustable pitch gear one (8).

4. The cable stripping machine according to claim 1, characterized in that: The C-shaped bracket (16) has limit slide rails (23) on both sides, and the tool holder (24) has a tool holder slider (27) that matches the limit slide rails (23).

5. A cable stripping machine according to claim 1, characterized in that: The C-shaped housing (1) has a transmission box (2) in the middle. The transmission box (2) has a ring cutting motor (4) on the outside. The output shaft of the ring cutting motor (4) extends into the transmission box (2) and has a ring cutting gear (19). The transmission box (2) has a transmission gear (20) that meshes with the ring cutting gear (19). The ring cutting gear (19) and the transmission gear (20) work together to drive the C-shaped bracket (16) to rotate.

6. A cable stripping machine according to claim 6, characterized in that: The C-shaped housing (1) has multiple ring-cutting gears (18) arranged around its inner circumference. The outer ring of the C-shaped bracket (16) has a C-shaped toothed ring (17) that meshes with the ring-cutting gears (18). The transmission gear (20) is in transmission cooperation with the ring-cutting gears (18).

7. A cable stripping machine according to claim 7, characterized in that: The two ends of the ring gear (18) are rotatably connected to the limiting rollers (15), and the limiting rollers (15) abut against the outer ring of the C-shaped bracket (16).

8. A cable stripping machine according to claim 6, characterized in that: The transmission box (2) is equipped with a rack (12) that slides inside. The rack (12) has a connecting plate (13) at its end. The connecting plate (13) has extension rods (28) at both ends. The ends of the extension rods (28) are connected to the cable clamps (3).

9. A cable stripping machine according to claim 9, characterized in that: The transmission box (2) is equipped with a clamping motor (14), the output end of which extends into the transmission box (2) and is equipped with a clamping gear (11), which meshes with the rack (12).

10. A cable stripping machine according to claim 1, characterized in that: A thickness measuring slide rail (34) is provided on one end of the C-shaped housing (1). A thickness measuring slider (29) is slidably provided inside the thickness measuring slide rail (34). A roller (31) is provided at the end of the thickness measuring slider (29). A compensation guide rod (33) is provided on the side of the thickness measuring slider (29). The directions of the compensation guide rod (33) and the thickness measuring slide rail (34) are both pointing to the rotation center of the C-shaped bracket (16). A compensation slider (30) is provided on the compensation guide rod (33). An eddy current probe (32) is provided at the end of the compensation slider (30).

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