Wire stripping device and method for power cable

Abstract

The invention discloses a stripping device and method for a power cable, and the device comprises an axial cutting assembly which comprises a supporting cylinder and at least two axial cutters; the girdling assembly comprises a connecting cylinder coaxially and rotatably arranged at one end of the supporting cylinder, a driving device in driving connection with the connecting cylinder, and at least two girdling knives uniformly arranged on the connecting cylinder at intervals around the axis; the device further comprises adjusting assemblies which correspond to the axial cutters one to one and conduct radial adjustment on the axial cutters, the annular cutters are in linkage fit with the adjusting assemblies, and when the adjusting assemblies conduct radial adjustment on the axial cutters, the annular cutters and the axial cutters can be synchronously and radially adjusted in the same direction. According to the power cable stripping device, a stripping method is adopted to work, insulation skin cutting and stripping are carried out on a cable, double cutting can be carried out through the annular cutter and the axial cutter, the cut insulation skin is small in size and convenient to collect, the axial cutter and the annular cutter are synchronously and radially adjusted through the adjusting assembly, the adjusting convenience is improved, and using is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of wire stripping equipment, and in particular to a wire stripping device and method for power cables. Background Art

[0002] At present, the main way to deal with waste cables is through wire stripping machines, which strip off the insulation sheath of waste cables and then recycle the multiple strands of wire cores inside to achieve the purpose of resource recycling.

[0003] At present, the wire stripping machines for recycling waste cables are generally only equipped with axial cutting knives for cutting in the extension direction of the cable. After cutting, a long outer insulation skin will be left. The long outer insulation skin is not conducive to storage and generally needs to be cut. In addition, for cables of different diameters, the cutting blade needs to be manually adjusted, which is inconvenient to use. Summary of the invention

[0004] The object of the present invention is to solve the above problems and provide a wire stripping device and method for power cables.

[0005] To achieve the above object, the technical solution of the present invention is: a wire stripping device for a power cable, comprising a wire stripping unit, wherein the wire stripping unit comprises: An axial cutting assembly includes a support cylinder and at least two axial cutters evenly spaced around an axis of the support cylinder; The ring cutting assembly comprises a connecting cylinder coaxially rotatably arranged at one end of the supporting cylinder, a driving device drivingly connected to the connecting cylinder, and at least two ring cutting knives evenly spaced around the axis and arranged on the connecting cylinder; It also includes an adjustment component that corresponds to the axial cutter one by one and adjusts the axial cutter radially. The annular cutter cooperates with the adjustment component. When the adjustment component adjusts the axial cutter radially, the annular cutter can be radially adjusted in the same direction and synchronously with the axial cutter.

[0006] Furthermore, the adjustment component comprises: The first arm includes two arms symmetrically arranged about the rotating plane of the axial cutter, which are respectively hingedly connected to the two ends of the axial cutter, and the other end of the first arm is hingedly connected to a moving part; the two moving parts are configured to be able to move toward and away from each other along the extension direction of a first straight line, and the first straight line is parallel to the axis of the axial cutter.

[0007] Furthermore, a second arm is hingedly connected to one side of each moving part close to the circular cutting assembly, the two second arms are symmetrical about the rotation plane of the axial cutter, and the other ends of the two second arms are linked with the circular cutter.

[0008] Further, a second sliding cylinder is axially slidably sleeved outside the connecting cylinder body. The second sliding cylinder is in linkage cooperation with the second arm, and the second sliding cylinder is drivingly connected to at least two circumferential cutting knives.

[0009] Further, rolling members are hingedly connected to the other ends of the two second arms. The extension line of the axis of rotation of the rolling members is perpendicular to and intersects the axis of the support cylinder body. An elastic member is arranged between the second sliding cylinder and the connecting cylinder body, and the elastic member can provide an axial elastic force for pressing the second sliding cylinder against the rolling members.

[0010] Further, a radial adjustment assembly is arranged on the connecting cylinder body. The radial adjustment assembly includes: A circumferential cutting knife holder axially guided and arranged on the side wall of the connecting cylinder body; along the guiding direction, the circumferential cutting knife holder is provided with a tooth surface; A rotating shaft rotatably arranged around its own axis, perpendicular to both the guiding direction and the axis of the connecting cylinder body. A first gear and a second gear meshing with the tooth surface are arranged at intervals on the rotating shaft; along the axial direction of the connecting cylinder body, a rack is arranged on the second sliding cylinder, and the rack meshes with the first gear.

[0011] Further, at one end of the connecting cylinder body away from the support cylinder body, a first sliding cylinder is also axially slidably sleeved on the connecting cylinder body. The first sliding cylinder is drivingly connected to the second sliding cylinder and can move synchronously towards and away from each other with the second sliding cylinder; the first sliding cylinder is provided with a rack meshing with the first gear, and the two racks are located on both sides of the axis of the first gear.

[0012] Further, different from the radial adjustment assembly, two third gears are evenly spaced around the axis of the connecting cylinder body. Two second racks are respectively arranged on both sides of the axis of the third gear, and the second racks mesh with the third gear. The two second racks are respectively connected to the first sliding cylinder and the second sliding cylinder.

[0013] Further, it further includes: A conductive kit; arranged to move axially along the support cylinder; A second conductive member, slidably and conductively connected to the circumferential cutting knife; A control device, connected to the second conductive member and the conductive kit; The adjustment assembly includes a servo motor, and the control device is connected to the servo motor and is used to control the servo motor to switch to a stopped working state when the second conductive member and the conductive kit are electrically connected.

[0014] Further, the present application also provides a wire stripping method for power cables, including the following steps: Step 1: Coaxially pass the cable through the axial cutting assembly and the circumferential cutting assembly; Step 2: Drive the cable to be conveyed axially from the axial cutting assembly to the circumferential cutting assembly, and the driving device drives the connecting cylinder body to rotate around the axis; Step 3: The adjustment component works to synchronously and radially adjust the axial cutting knife and the circumferential cutting knife.

[0015] Compared with the prior art, a wire stripping device and method for power cables disclosed by the present invention have the following beneficial effects: The wire stripping device for power cables works by using a wire stripping method to cut and strip the insulating skin of the cable. It can perform double cutting through the circumferential cutting knife and the axial cutting knife. The size of the cut insulating skin is small, which is convenient for collection. The adjustment component synchronously and radially adjusts the axial cutting knife and the circumferential cutting knife, improving the convenience of adjustment and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a wire stripping device for power cables according to the present invention.

[0017] Figure 2 It is a schematic cross-sectional view of the conductive kit in a wire stripping device for power cables according to the present invention.

[0018] Figure 3 It is a schematic side view of the wire stripping unit in a wire stripping device for power cables according to the present invention Figure 1 .

[0019] Figure 4 It is a schematic side view of the wire stripping unit in a wire stripping device for power cables according to the present invention Figure 2 .

[0020] Figure 5 It is a schematic axial view of the wire stripping unit in a wire stripping device for power cables according to the present invention.

[0021] Figure 6 It is a schematic diagram of the overall structure of the wire stripping unit in a wire stripping device for power cables according to the present invention Figure 1 .

[0022] Figure 7 It is a schematic bottom view of the wire stripping unit in a wire stripping device for power cables according to the present invention.

[0023] Figure 8 It is a schematic diagram of the overall structure of the wire stripping unit in a wire stripping device for power cables according to the present invention Figure 2 .

[0024] Figure 9 According to the present invention Figure 8 The partial enlarged structure schematic diagram at position A.

[0025] Figure 10 It is a schematic diagram of the structure of the support cylinder in a wire stripping device for power cables according to the present invention.

[0026] Figure 11Schematic structure of the adjustment component in a wire stripping device for power cables according to the present invention Figure 1 。

[0027] Figure 12 Schematic structure of the adjustment component in a wire stripping device for power cables according to the present invention Figure 2 。

[0028] Figure 13 Overall schematic structure of the circumferential cutting component in a wire stripping device for power cables according to the present invention Figure 1 。

[0029] Figure 14 Overall schematic structure of the circumferential cutting component in a wire stripping device for power cables according to the present invention Figure 2 。

[0030] Figure 15 Schematic cross-sectional structure diagram of the circumferential cutting component in a wire stripping device for power cables according to the present invention.

[0031] Figure 16 According to the present invention Figure 15 Partial enlarged structure diagram at position D.

[0032] Figure 17 Overall schematic structure of the circumferential cutting component in a wire stripping device for power cables according to the present invention Figure 3 。

[0033] Figure 18 According to the present invention Figure 13 Partial enlarged structure diagram at position B.

[0034] Figure 19 According to the present invention Figure 13 Partial enlarged structure diagram at position C.

[0035] Figure 20 Schematic structure diagram of the connecting cylinder in an embodiment according to the present invention

[0036] Figure 21 Schematic cross-sectional structure diagram of the wire stripping unit in another embodiment according to the present invention

[0037] In the figure: 1, cable; 2, first bracket; 21, driving wheel group; 3, wire stripping unit; 30, frame; 31, supporting cylinder; 310, strip hole; 312, ear plate; 313, positioning sleeve; 32, ring cutting assembly; 320, first avoidance hole; 321, connecting cylinder; 3210, first edge plate; 3211, first guide hole; 3212, second avoidance hole; 3213, second rotating shaft; 3214, third gear; 3215, second rack; 322, first sliding cylinder; 3220, second edge plate; 3221, second guide hole; 323, second sliding cylinder; 3230, third edge plate; 324, gear ring; 325, elastic member; 3251, rigid rod; 3252, end cap; 326, guide column; 327, conductive ring; 3 271. first conductive member; 3272. fixing member; 33. adjusting assembly; 330. rolling member; 331. motor; 332. lead screw nut; 333. first arm; 334. bidirectional lead screw; 335. second arm; 336. bushing; 34. radial adjusting assembly; 340. rack; 341. rotating shaft; 342. first gear; 343. second gear; 344. housing; 35. circular cutter; 351. circular cutter holder; 352. guide rod; 353. tooth surface; 355. second conductive member; 36. control device; 361. conductive column; 37. axial cutter; 4. driving device; 41. spur gear; 5. guide member; 50. movable member; 51. conductive kit; 510. insulating sleeve; 511. conductive plate; 512. conductive needle. DETAILED DESCRIPTION

[0038] The present invention will now be described in further detail with reference to the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and thus only show the components related to the present invention.

[0039] Embodiment 1 Please refer to Figures 1-8 The technical solution of the present invention is: a wire stripping device for power cables, comprising a wire stripping unit 3, wherein the wire stripping unit 3 comprises: An axial cutting assembly, comprising a support cylinder 31, and at least two axial cutters 37 evenly spaced around the axis of the support cylinder 31; The ring cutting assembly 32 comprises a connecting cylinder 321 coaxially rotatably arranged at one end of the supporting cylinder 31, a driving device 4 drivingly connected to the connecting cylinder 321, and at least two ring cutting knives 35 evenly spaced around the axis and arranged on the connecting cylinder 321; It also includes an adjustment component 33 that corresponds to the axial cutter 37 one by one and radially adjusts the axial cutter 37. The annular cutter 35 cooperates with the adjustment component 33. When the adjustment component 33 radially adjusts the axial cutter 37, the annular cutter 35 can be radially adjusted in the same direction and synchronously with the axial cutter 37.

[0040] Specifically, as an implementation manner, the specific structure of a wire stripping device for power cables provided by the present invention is as follows: Refer to Figure 1 , including a wire stripping unit 3 arranged in the horizontal direction, and two first brackets 2 provided on both sides of the wire stripping unit 3. A driving wheel set 21 is provided at the upper end of the first bracket 2. The driving wheel set 21 adopts a commonly used structure in the prior art. A frame 30 is provided on the outer side wall of the support cylinder 31 of the wire stripping unit 3 to provide support for the wire stripping unit 3. The connecting cylinder 321 is rotatably arranged at one end of the support cylinder 31 and they are coaxially arranged. The connecting cylinder 321 and the support cylinder 31 are also axially anti-displacement coordinated. The connection between the support cylinder 31 and the connecting cylinder 321 can adopt a commonly used connection method in the art, and no specific limitation is made here as long as the working purpose can be achieved; Refer to Figure 5 , as a specific implementation manner, both the axial cutter 37 and the circumferential cutter 35 are provided with two. In the initial state, both the axial cutter 37 and the circumferential cutter 35 are in the initial working state close to the side wall of the support cylinder 31, so as to facilitate the passing of the cable 1. During operation, the cable 1 is passed through a driving wheel set 21, the wire stripping unit 3 and two driving wheel sets 21 in sequence, and it is ensured that the axis of the cable 1 is coaxial with the axis of the wire stripping unit 3. Then the two driving wheel sets 21 work synchronously to drive the cable 1 to move along the Figure 1 first direction shown in, so that the cable 1 passes through the axial cutter 37 and the circumferential cutter 35 in sequence. At the same time, the adjusting assembly 33 works to radially adjust the axial cutter 37 and the circumferential cutter 35, so that the axial cutter 37 and the circumferential cutter 35 move synchronously towards the direction close to the axis, so that the cutters contact and cut the outer skin of the cable 1 until the radial adjustment stops and the position is maintained after adjusting to a suitable position. When the cable 1 passes through the axial cutter 37, the insulating skin outside the cable 1 is axially cut. After cutting, it passes through the circumferential cutter 35, and the circumferential cutter 35 circumferentially cuts the axially cut insulating skin again, so that the insulating skin can be cut into segments and then fall off together with the moving cable 1. Through this implementation manner, the insulating skin can be cut into segments, which is convenient for subsequent collection and more convenient to use.

[0041] It should be noted that during the initial wire stripping, a section of the insulating skin at the end of the cable 1 needs to be manually cut off to facilitate the clamping and driving of the driving wheel set 21 located downstream of the wire stripping unit 3 along the first direction.

[0042] Furthermore, as a specific implementation manner, refer to Figures 6-8 , Figures 10-12As shown in the figure, the specific structure of the adjusting assembly 33 is that the adjusting assembly 33 includes: two first arms 333, which are symmetrically arranged with respect to the axial cutting tool 37's rotation plane, are respectively hinged to both ends of the axial cutting tool 37, and the other end of the first arm 333 is hinged to a moving member; the two moving members are configured to be able to move towards and away from each other along the extension direction of the first straight line, and the first straight line is parallel to the axis of the axial cutting tool.

[0043] Specifically, strip-shaped holes 310 are axially arranged on both opposite sides of the support cylinder 31. Two ear plates 312 are arranged on both sides of the strip-shaped hole 310. The adjusting assembly 33 includes a bidirectional lead screw 334 whose two ends are rotationally matched with the two ear plates 312. The moving members are two lead screw nuts 332 arranged at both ends of the bidirectional lead screw 334. The bidirectional lead screw 334 is connected to a servo motor 331, and the two servo motors 331 of the two adjusting assemblies 33 are synchronously arranged. The axes of the two bidirectional lead screws 334 are parallel and arranged in the same plane, and this plane is perpendicular to the axis of the support cylinder 31. The midpoint connection line of the axes of the two bidirectional lead screws 334 intersects with the axis of the support cylinder 31; the lead screw nut 332 is hinged to the first arm 333, and the other end of the first arm 333 passes through the strip-shaped hole 310 and is hinged to a bushing 336. The axial cutting tool 37 is rotationally connected to the two bushings 336. The cross-section of the first arm 333 is rectangular, and the side surfaces are in guiding sliding fit with the two side surfaces in the width direction of the strip-shaped hole 310. During operation, the bidirectional lead screw 334 is driven to rotate by the forward and reverse rotation of the servo motor 331, thereby driving the two lead screw nuts 332 to move towards or away from each other, driving the first arm 333 to swing. When moving towards each other, the ends of the two first arms 333 move closer to each other, thereby pushing the axial cutting tool 37 to move towards the axis of the support cylinder 31. When the two lead screw nuts 332 move away from each other, the axial cutting tool 37 is driven to move in the opposite direction, thereby achieving the adjustment effect.

[0044] Furthermore, as a specific implementation manner, on the side of each moving member close to the circumferential cutting assembly 32, a second arm 335 is also hinged. The two second arms 335 are symmetric with respect to the rotation plane of the axial cutting tool 37, and the other ends of the two second arms 335 are in linkage cooperation with the circumferential cutting tool 35. Specifically, a second arm 335 is also hinged to the side surface of each lead screw nut 332, and the other end of the second arm 335 is in linkage cooperation with the circumferential cutting tool 35. Through this setting method, when the bidirectional lead screw 334 rotates to drive the first arm 333 to swing, the second arm 335 can be driven to swing at the same time, thereby providing a driving force for the circumferential cutting tool 35 along the axis direction of the support cylinder 31, achieving the purpose of synchronously linking the circumferential cutting tool 35. Through the above structure for linkage, the overall structure is simple, and through mechanical transmission for linkage, the work is reliable and the maintenance is convenient.

[0045] Furthermore, as a specific implementation manner, refer to Figure 8 、Figure 10 , Figure 11 A second sliding cylinder 323 is axially slidably sleeved on the outside of the connecting cylinder 321 . The second sliding cylinder 323 cooperates with the second arm 335 , and the second sliding cylinder 323 is transmission-connected to at least two annular cutting knives 35 .

[0046] Specifically, refer to Figures 13-16 The outer circumference of the connecting cylinder 321 is provided with an avoidance hole, and the annular cutting knife 35 passes through the avoidance hole and cooperates with the radial guidance of the outer wall of the connecting cylinder 321. The outer circumference of the connecting cylinder 321 is provided with a first edge plate 3210, and the first edge plate 3210 is provided with a second sliding cylinder 323 on the side close to the supporting cylinder 31. The outer circumference of the second sliding cylinder 323 is provided with a third edge plate 3230. The second sliding cylinder 323 cooperates with the annular cutting knife 35 in transmission, and the second arm 335 cooperates with the second sliding cylinder 323 in linkage. When the second arm 335 swings, the second sliding cylinder 323 is linked to slide axially, thereby linking the annular cutting knife 35 to move radially. The above-mentioned setting method can be linked by at least two groups of second arms 335 arranged on the supporting cylinder 31 to drive the second sliding cylinder 323 to move. The radial linkage adjustment of at least two annular cutting knives 35 is performed by a second sliding cylinder 323, which can improve the adjustment synchronization of at least two annular cutting knives 35 and achieve better adjustment effect.

[0047] Furthermore, as a preferred embodiment, the other ends of the two second arms 335 are hingedly connected to the rolling element 330, and the extension line of the rotating axis 341 of the rolling element 330 is perpendicular to and intersects with the axis of the supporting cylinder 31. An elastic member 325 is provided between the second sliding cylinder 323 and the connecting cylinder 321, and the elastic member 325 can provide an axial elastic force to make the second sliding cylinder 323 abut against the rolling element 330.

[0048] Specifically, the working principle is: Figure 13 , Figure 14 , Figure 18, an elastic member 325 is provided between the connecting cylinder 321 and the second sliding sleeve to provide an elastic force for the second sliding sleeve in the direction close to the support cylinder 31. At least two guide posts 326 are arranged at intervals on the third flange 3230, and a first guide hole 3211 for guiding cooperation with the guide posts 326 is arranged on the first flange 3210. Through this setting method, the second sliding cylinder 323 and the connecting cylinder 321 are in circumferential limit cooperation, and the second sliding cylinder 323 and the connecting cylinder 321 will not rotate relative to each other circumferentially, which is more conducive to the transmission connection between the second sliding cylinder 323 and the circumferential cutting tool 35. Preferably, a rolling member 330 is hinged to the other end of the second arm 335. Under the elastic force of the elastic member 325, the second sliding cylinder 323 is pushed to make the third flange 3230 abut against the rolling member 330. When the circumferential cutting assembly 32 rotates, the rolling member 330 rolls frictionally with the third flange 3230. When the bidirectional lead screw 334 rotates to push the two lead screw nuts 332 to move towards each other, the rolling member 330 is driven to push the second sliding cylinder 323 to move against the elastic force of the elastic member 325, and the circumferential cutting tool 35 is radially driven. When the two lead screw nuts 332 move away from each other, the second sliding cylinder 323 is pushed to return under the action of the self-elastic force of the elastic member 325, and the second sliding cylinder 323 drives the circumferential cutting tool 35 to reset.

[0049] Further, referring to Figures 13-16 , Figure 19 , a radial adjustment assembly 34 is provided on the connecting cylinder 321. The radial adjustment assembly 34 includes: A circumferential cutting tool holder 351 is arranged on the side wall of the connecting cylinder 321 in a radially guiding manner; along the guiding direction, the circumferential cutting tool holder 351 is provided with a tooth surface 353; A rotating shaft 341 is rotatably arranged around its own axis, perpendicular to both the guiding direction and the axis of the connecting cylinder 321. A first gear 342 and a second gear 343 meshing with the tooth surface 353 are arranged at intervals on the rotating shaft 341; along the axial direction of the connecting cylinder 321, a rack 340 is arranged on the second sliding cylinder 323, and the rack 340 meshes with the first gear 342.

[0050] Specifically, the circumferential cutting tool 35 is connected through a circumferential cutting tool holder 351. The circumferential cutting tool holder 351 is connected with a guide rod 352. A tooth surface 353 is arranged on the side surface of the guide rod 352. The specific structure of the radial adjustment assembly 34 is as follows: It includes a housing 344 arranged on the outer peripheral surface of the connecting cylinder 321. The guide rod 352 is in guiding and non-rotating fit with the housing 344. A rotating shaft 341 is rotatably arranged on the side wall of the housing 344. Inside the housing 344, a second gear 343 meshing with the tooth surface 353 is arranged on the rotating shaft 341. One end of the rotating shaft 341 extending out of the housing 344 is provided with a second gear 343. A rack 340 meshing with the second gear 343 is arranged on the second sliding cylinder 323. Through this setting method, when the second sliding sleeve moves in the direction close to the first flange 3210, the rack 340 drives the second gear 343 to rotate, driving the rotating shaft 341 to rotate. The rotating shaft 341 drives the second gear 343 to rotate. The second gear 343 meshes with the tooth surface 353 to drive the guide rod 352 to move towards the axis direction of the connecting cylinder 321, pushing the circumferential cutting tool 35 to move. When the second sliding sleeve returns under the elastic force of the elastic member 325, it drives the circumferential cutting tool 35 to move back. By means of gear transmission, it is convenient to adjust the transmission ratio of the gear to ensure that the circumferential cutting tool 35 and the axial cutting tool 37 move as synchronously as possible, reduce the error of their synchronous movement, and the gear transmission method has a simple and reliable structure, a large transmitted torque, and high stability.

[0051] It should be noted that in this application, when the axial cutting tool 37 and the circumferential cutting tool 35 are adjusted, an error of less than 3 mm is allowed. Within this error range, it can still be ensured to be effective. Within the range where the radial adjustment error of the axial cutting tool 37 and the circumferential cutting tool 35 is lower than 3 mm, it is all called synchronous adjustment.

[0052] Reference Figure 15 、 Figure 17 As a preferred implementation manner, in the initial state, the second sliding cylinder 323 includes an extending section extending out of the connecting cylinder 321 for cooperating with the support cylinder 31, and the clearance between the inner peripheral surface of the extending end and the outer peripheral surface of the connecting cylinder is less than 2 mm. Through this setting method, it can prevent debris from entering the position where the connecting cylinder 321 and the support cylinder 31 are rotatably connected, improving stability.

[0053] Further, as a specific implementation manner, a tooth ring 324 is arranged on the outer peripheral surface of the third flange 3230. Reference Figure 1, the driving device 4 is drivingly connected with a spur gear 41. The axis of the supporting wheel is arranged parallel to the axis of the supporting cylinder body 31. The supporting wheel meshes with the toothed ring 324. Through this setting method, the driving device 4 can select any power source such as the motor 331 to drive the supporting wheel to rotate. The spur gear 41 drives the second sliding cylinder 323 to drive the connecting cylinder body 321 to rotate, and relative sliding can occur between the toothed ring 324 and the spur gear 41 when the second sliding cylinder 323 moves axially.

[0054] Embodiment 2 This application provides a wire stripping device for power cables. As a further improvement, refer to Figure 19 , Figure 20 , at one end of the connecting cylinder body 321 away from the supporting cylinder body 31, a first sliding cylinder 322 is also sleeved on the connecting cylinder body 321 in an axially sliding manner. The first sliding cylinder 322 is drivingly connected with the second sliding cylinder 323 and can move towards and away from each other synchronously with the second sliding cylinder 323; the first sliding cylinder 322 is provided with racks 340 that are meshed and matched with the first gear 342, and the two racks 340 are located on both sides of the axis of the first gear 342.

[0055] Specifically, the first sliding cylinder 322 is sleeved on the other end of the connecting cylinder body 321, and a second flange 3220 is arranged on the outer peripheral surface. A second guiding hole 3221 adapted to the guiding column 326 is arranged on the second flange 3220. Refer to Figure 13 , in the initial state, the guiding column 326 extends into the second guiding hole 3221. The second sliding cylinder 323 is drivingly connected with the first sliding cylinder 322 and can move towards and away from each other synchronously. At least two racks 340 adapted to at least two radial adjusting components 34 are also arranged on the second flange 3220. The racks 340 are drivingly connected with the second gears 343 of the radial adjusting components 34, and the racks 340 on the second flange 3220 and the racks 340 on the third flange 3230 are arranged on both sides of the axis of the second gear 343. Through this setting method, when the second sliding cylinder 323 moves towards the first sliding cylinder 322, the first sliding cylinder 322 is synchronously driven, and the two racks 340 can drive both sides of the second gear 343 synchronously, improving the driving reliability, reducing the probability of damage to the racks 340 and the second gears 343, and increasing the service life.

[0056] Furthermore, as a specific implementation manner, refer to Figure 20, the driving connection mode between the second sliding cylinder 323 and the first sliding cylinder 322 is as follows: different from the radial adjustment assembly 34, two third gears 3214 are evenly spaced around the axis of the connecting cylinder body 321. A second rotating shaft 341 is rotatably arranged on the outer peripheral surface of the connecting cylinder body 321. The third gear 3214 is rotationally matched with the second rotating shaft 341. Two second rack bars 3251 are respectively arranged on both sides of the axis of the third gear 3214. The second rack bars 3251 are meshed with the third gear 3214. The two second rack bars 3251 are respectively connected to the first sliding cylinder 322 and the second sliding cylinder 323. Through this setting method, when the second sliding sleeve moves, the third gear 3214 is driven to rotate by the second rack bar 3251. After the third gear 3214 rotates, it drives the other second rack bar 3251 to translate, thereby pulling the first sliding sleeve to move, so as to achieve the purpose of driving the first sliding sleeve and the first sliding sleeve to move synchronously towards or away from each other.

[0057] As a preferred embodiment, refer to Figure 18 , around the axis of the support cylinder body 31, at least two rigid rods 3251 are evenly spaced on the third flange 3230. A second avoidance hole 3212 corresponding to the rigid rod 3251 is arranged on the first flange 3210. The other end of the rigid rod 3251 passes through the second flange 3220 and is threadedly connected with an end cap 3252. The elastic member 325 is at least two compression springs respectively sleeved outside the rigid rod 3251. The two ends of the compression spring respectively abut against the third flange 3230 and the second flange 3220.

[0058] Furthermore, as a specific embodiment, refer to Figures 1-3 、 Figure 9 、 Figure 16 A wire stripping device for power cables provided by the present application further includes: A conductive kit 51; arranged to move axially along the support cylinder; The second conductor, slidably and conductively connected to the circumferential cutting knife 35; A control device 36, connected to the second conductive member 355 and the conductive kit 51; The adjustment assembly 33 includes a servo motor 331. The control device 36 is connected to the servo motor 331 and is used to control the servo motor 331 to switch to a stopped working state when the second conductive member 355 and the conductive kit 51 are electrically connected.

[0059] Specifically, along the first direction, a guide rail is further provided. A movable member 50 is movably arranged on the guide rail. Specifically, the movable member 50 can adopt any one of the driving methods of screw drive and the connection between a linear rack 340 and a gear in the prior art, and can drive the movable member 50 to move along the guiding direction of the guide rail. Here, it is not limited thereto. In order to simplify the drawings and unnecessary elaboration, its specific driving method is not shown and described. Those skilled in the art should understand.

[0060] The conductive sleeve is connected to the movable member 50. The conductive kit 51 includes a conductive plate 511, an insulating sleeve body, and a plurality of conductive pins 512 connected to the conductive plate 511. The conductive pins 512 are evenly arranged. When the conductive kit 51 is sleeved on the end of the cable 1, the conductive pins 512 will contact the ends of the inner cores of the cable 1 to conduct electricity with the cores. The control device 36 includes a conductive column 361 electrically connected to the conductive plate 511 through a wire. Each circumferential cutting knife 35 is provided with a second conductive member 355 in cooperation. A conductive ring 327 is provided on the outer peripheral surface of the second sliding sleeve. The conductive ring 327 is electrically connected to at least two second conductive members 355. A first conductive member 3271 that is in sliding electrical contact with the conductive ring 327 is provided on the outer peripheral surface of the support cylinder 31. The second conductive member 355 is electrically connected to the control device 36, and the control device 36 is electrically connected to the servo motor 331.

[0061] During the preparatory work, the conductive kit 51 is sleeved on the end of the cable 1. The driving device 4 starts to work, driving the circumferential cutting assembly 32 to rotate. Then the driving wheel set 21 works to drive the cable 1 to move in the first direction. At the same time, the movable member 50 moves, driving the conductive kit 51 to move at the same speed as the cable 1. Then the control device 36 controls the servo motor 331 to work to radially adjust the axial cutting knife 37 and the circumferential cutting knife 35. The axial cutting knife 37 and the circumferential cutting knife 35 approach the cable 1 for cutting. In the initial state, the cutting knives do not contact the cable 1, and the circumferential cutting knife 35 does not penetrate the inner core of the cable 1. At this time, the control device 36 controls the servo motor 331 to continuously work for radial adjustment. As the adjustment progresses, the axial cutting knife 37 and the circumferential cutting knife 35 contact the cable 1 for outer skin cutting, and the cutting depth increases. When the cutting depth reaches a certain value, the cutting edge of the circumferential cutting knife 35 will contact the inner core of the cable 1. At this time, the control device 36 can detect that the cutting edge of the circumferential cutting knife 35, the second conductive member 355, and the conductive plate 511 of the conductive kit 51 are electrically connected. At this time, the control device 36 controls the servo motor 331 to stop working and maintain the stopped state. When the control device 36 detects that the second conductive member 355 and the conductive plate 511 are electrically connected, the control device 36 controls the movable member 50 to accelerate, driving the conductive kit 51 to separate from the end of the cable 1. The end of the cable 1 sags under the action of gravity and separates from the conductive kit 51. Then just maintain the current working state.

[0062] Furthermore, as a preferred embodiment, after the control device 36 controls the servo motor 331 to stop working, the servo motor 331 is controlled to rotate in the opposite direction by a certain angle, so that the circular cutter 35 and the axial cutter 37 return to 0.5mm-1.5mm, thereby avoiding direct contact between the cutting knife and the wire core. On the one hand, it can ensure the effective cutting and stripping of the insulating outer skin, and on the other hand, it can avoid excessive cutting and reduce the loss of the cutting knife; and it can also be applied to some work scenarios that have high requirements on the integrity of the internal wire core, thereby increasing the scope of application.

[0063] It should be noted that, in some embodiments, reference Figure 21 Guide sleeves for positioning the cable 1 can be detachably arranged on both sides of the axial direction of the axial cutter 37 in the support sleeve body. The two guide sleeves are coaxial with the axis of the support sleeve body. The two positioning sleeves 313 are 3cm-10cm apart from the axial cutter at one end close to the axial cutter. The cable 1 can pass through the positioning sleeves 313. The inner circumference of the positioning sleeves 313 is used to position the cable 1. The positioning sleeves 313 can be provided to improve the positioning accuracy, and can also ensure that the cable 1 will not swing arbitrarily when the axial cutter 37 cuts the insulation skin, thereby ensuring effective cutting. After the axial cutter 37 cuts the insulation skin, the insulation skin is gathered and positioned by the guide sleeves downstream of the axial cutter 37, thereby ensuring that the subsequent annular cutter 35 can effectively cut the insulation skin.

[0064] Embodiment 3 The present application also provides a wire stripping method for a power cable, comprising the following steps: Step 1: coaxially pass the cable 1 through the axial cutting assembly and the circular cutting assembly 32; Step 2: The driving cable 1 is conveyed axially from the axial cutting assembly to the annular cutting assembly 32, and the driving device 4 drives the connecting cylinder 321 to rotate around the axis; Step 3: The adjustment component 33 works to synchronously adjust the axial cutting knife and the circular cutting knife 35 in the radial direction.

[0065] Specifically, the power cable stripping device described in Example 1 and Example 2 adopts the above method to cut and strip the insulation of the cable 1, and can perform double cutting through the circular cutter 35 and the axial cutter 37. The insulation after cutting is small in size and easy to collect. The axial cutter 37 and the circular cutter 35 are synchronously radially adjusted through the adjustment component 33, which improves the convenience of adjustment and is more convenient to use.

[0066] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or variations derived therefrom still fall within the protection scope of the present invention.

Claims

1. A wire stripping device for power cables, characterized in that: It comprises a wire stripping unit (3), wherein the wire stripping unit (3) comprises: An axial cutting assembly comprises a support cylinder (31) and at least two axial cutters (37) evenly spaced around the axis of the support cylinder (31); The ring cutting assembly (32) comprises a connecting cylinder (321) coaxially rotatably arranged at one end of the supporting cylinder (31), a driving device (4) drivingly connected to the connecting cylinder (321), and at least two ring cutting knives (35) evenly spaced around an axis and arranged on the connecting cylinder (321); It also includes an adjustment component (33) corresponding to the axial cutter (37) in a one-to-one manner and capable of radially adjusting the axial cutter (37); the annular cutter (35) and the adjustment component (33) are linked and cooperate with each other; when the adjustment component (33) radially adjusts the axial cutter (37), the annular cutter (35) can be radially adjusted in the same direction and synchronously with the axial cutter (37).

2. A wire stripping device for power cables according to claim 1, characterized in that: The regulating component (33) comprises: The first arm (333) comprises two arms symmetrically arranged about the rotation plane of the axial cutter (37), which are respectively hingedly connected to two ends of the axial cutter (37), and the other end of the first arm (333) is hingedly connected to a moving part; the two moving parts are configured to be able to move toward and away from each other along the extension direction of a first straight line, and the first straight line is parallel to the axis of the axial cutter.

3. A wire stripping device for power cables according to claim 2, characterized in that: A second arm (335) is hingedly connected to one side of each moving part close to the circular cutting assembly (32); the two second arms (335) are symmetrical about the rotation plane of the axial cutter (37); and the other ends of the two second arms (335) are in linkage with the circular cutter (35).

4. A wire stripping device for power cables according to claim 3, characterized in that: A second sliding cylinder (323) is axially slidably sleeved outside the connecting cylinder (321); the second sliding cylinder (323) is linked with the second arm (335); and the second sliding cylinder (323) is transmission-connected to at least two annular cutting knives (35).

5. A wire stripping device for power cables according to claim 4, characterized in that: The other ends of the two second arms (335) are hingedly connected to a rolling member (330); an extension line of a rotation axis (341) of the rolling member (330) is perpendicular to and intersects with an axis of the supporting cylinder (31); an elastic member (325) is provided between the second sliding cylinder (323) and the connecting cylinder (321); the elastic member (325) can provide an axial elastic force that causes the second sliding cylinder (323) to abut against the rolling member (330).

6. A wire stripping device for power cables according to claim 3, characterized in that: A radial adjustment component (34) is provided on the connecting cylinder (321), and the radial adjustment component (34) comprises: A circular cutting tool holder (351) is arranged on the side wall of the connecting cylinder (321) along a radial direction; along the guiding direction, the circular cutting tool holder (351) is provided with a tooth surface (353); The rotating shaft (341) is arranged to rotate around its own axis and is perpendicular to the guide direction and the axis of the connecting cylinder (321). A first gear (342) and a second gear (343) meshing with the tooth surface (353) are arranged on the rotating shaft (341) at intervals. Along the axial direction of the connecting cylinder (321), the second sliding cylinder (323) is provided with a rack (340), and the rack (340) meshes with the first gear (342).

7. A wire stripping device for power cables according to claim 6, characterized in that: Located at one end of the connecting cylinder (321) away from the supporting cylinder (31), the connecting cylinder (321) is also provided with a first sliding cylinder (322) along an axial sliding sleeve, the first sliding cylinder (322) is transmission-connected with the second sliding cylinder (323), and can move synchronously with the second sliding cylinder (323) toward and away from each other; the first sliding cylinder (322) is provided with a rack (340) meshing with the first gear (342), and the two racks (340) are located on both sides of the axis of the first gear (342).

8. A wire stripping device for power cables according to claim 7, characterized in that: Different from the radial adjustment assembly (34), the connecting cylinder (321) is provided with two third gears (3214) evenly spaced around its axis, and two second racks (3215) are provided on both sides of the axis of the third gear (3214). The second racks (3215) are meshed with the third gear (3214), and the two second racks (3215) are respectively connected to the first sliding cylinder (322) and the second sliding cylinder (323).

9. A wire stripping device for a power cable according to claim 1, characterized in that: Also includes: The conductive sleeve (51) is arranged to move axially along the supporting cylinder (321); A second conductive member (355) is slidably conductively connected to the ring cutting knife (35); A control device (36) connected to the second conductive member (355) and the conductive kit (51); The regulating assembly (33) comprises a servo motor (331), and the control device (36) is connected to the servo motor (331) and is used to control the servo motor (331) to switch to a stopped working state when the second conductive member (355) and the conductive sleeve (51) are electrically connected.

10. A method for stripping a power cable, characterized in that: The following steps are involved: Step 1, passing the cable (1) coaxially through the axial cutting assembly and the circular cutting assembly (32); Step 2: The driving cable (1) is transported axially from the axial cutting assembly to the annular cutting assembly (32), and the driving device (4) drives the connecting cylinder (321) to rotate around the axis; Step 3: The adjustment component (33) works to synchronously adjust the axial cutting knife and the circular cutting knife (35) in the radial direction.

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