Shearing device for power cable production

Abstract

The invention belongs to the technical field of cable production, and particularly relates to a shearing device for power cable production, which comprises a supporting shaft plate, the supporting shaft plate is formed by hinging an upper shaft plate and a lower shaft plate, one side, close to the lower shaft plate, of the outer cambered surface of the upper shaft plate is provided with a hinging end, and the top of the outer cambered surface of the lower shaft plate is provided with a connecting end. The hinged end and the connecting end are connected through a rotating shaft in a penetrating mode, a penetrating hole is formed in the middle of the supporting shaft plate, an opening and closing assembly is fixedly installed in the middle of the inner arc face of the supporting shaft plate, and the opening and closing assembly comprises a gear block connected between the two shaft plates in a penetrating mode. Compared with the prior art, equipment is not required to be replaced among different processes, the production process is simplified, errors and loss possibly occurring in the middle link are reduced from preliminary clamping and pre-cutting after cable loading to precise stripping of the outer sheath, the production efficiency is improved, the equipment purchase and maintenance cost of enterprises is reduced, and the production benefits are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cable production, in particular to a shearing device for power cable production. Background Art

[0002] Power cables are made of one or more mutually insulated conductors and an outer insulating protective layer. They transmit electricity from power stations and substations to various electrical equipment, buildings and user ends. They can be used to transmit and distribute high-power electrical energy in the trunk lines of the power system.

[0003] With the acceleration of global digitalization and intelligentization, the stability and transmission efficiency of power systems have become key. As a core component of the power transmission network, the production quality of power cables directly affects the operational safety of the entire power system. In the traditional power cable production field, cutting devices have always played an indispensable role. Early cutting equipment was mainly designed for cables with conventional specifications and single structures. It relied on simple mechanical transmission and fixed tools to complete cutting tasks. Although it could meet basic production needs, it gradually exposed many limitations in the face of increasingly complex production environments and diverse cable types.

[0004] A Chinese invention patent publication numbered CN117578284A discloses a stripping device for wire and cable production, comprising a support platform, a stripping mechanism disposed on the top of the support platform, a fixing mechanism disposed on the bottom of the support platform, a scraping mechanism disposed on the front of the support platform, and a separation component and a conveying component disposed on the top of the support platform. This allows the output end gear rollers to rotate in opposite directions by a driving motor, and when the gear rollers rotate, the wires and cables are driven to extend inward. When extended to a certain extent, the wires and cables come into contact with blade two, and the busbar is cut in half by blade two, thereby stripping the outer skin of the wire and cable. This prevents side deviation and eliminates the need for adjustment when stripping the outer layer, making wire and cable stripping more stable.

[0005] However, the above technologies often have the following defects: although they can solve the problem of offset during the peeling process, simple peeling work cannot be adapted to enterprise processing. Due to the functional limitations of the shearing device, efficient coordination of shearing and peeling processes cannot be achieved, resulting in lengthy production processes and poor connections. When faced with large-scale orders, their slow processing speed restricts the improvement of production capacity, which undoubtedly increases production costs, delays the production cycle, and causes waste of resources.

[0006] To this end, the present invention provides a shearing device for producing power cables. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0008] The technical solution adopted by the present invention to solve its technical problem is: a shearing device for power cable production described in the present invention includes a support shaft plate, which is composed of an upper shaft plate and a lower shaft plate hinged together, a hinged end is provided on the side of the outer arc surface of the upper shaft plate close to the lower shaft plate, a connecting end is provided on the top of the outer arc surface of the lower shaft plate, the hinged end and the connecting end are connected through a rotating shaft, a through hole is provided in the middle of the support shaft plate, an opening and closing component is fixedly installed in the middle of the inner arc surface of the support shaft plate, and the opening and closing component includes a gear connected between the two shaft plates Wheel block, one side of the upper surface of the gear block is connected to the inner wall of the upper shaft plate, one side of the lower surface of the gear block is connected to the lower shaft plate, a limiting seat body is provided at the top of the outer arc surface of the upper shaft plate, a boss is provided at the edge of one side surface of the limiting seat body, and a stop block is movably connected to the side of the limiting seat body close to the boss through a rotating shaft, a through hole is provided on one side surface of the stop block, and a tension spring is fixedly installed in the through hole, one end of the tension spring is fixedly installed on the boss, one end of the stop block is meshed with the gear block, and a processing component is provided at the front end of the support shaft plate.

[0009] The gear block is meshed with a driving gear at the serrations on the outer arc surface, and a bearing is connected to the middle of one side surface of the driving gear. The processing assembly includes an arc-shaped frame connected to one side surface of the support shaft plate, the interior of the arc-shaped frame is a hollow structure, and a connecting shaft is connected through the top of the front of the arc-shaped frame.

[0010] One end of the connecting shaft passes through the outside of the arc-shaped frame and is connected to the hinged end. The outer arc surface of the connecting shaft is connected to a matching piece through a nut, and a hook edge is provided on one side of the matching piece.

[0011] A stripping blade is provided on the side of the mating part away from the hook edge, and the hook edge is placed in an annular shape around the perforation. A material guide plate is fixedly installed on the side of the arc frame away from the connecting shaft by bolts, and the material guide plate is placed at the bottom of the stripping blade.

[0012] A cable group is connected through the middle through-hole of the support shaft plate, and the driving gear is fixedly installed with a pre-clamping assembly through one end of the bearing. The pre-clamping assembly includes an involvement plate connected to one end of the bearing, and the side of the involvement plate away from the driving gear is movably connected to a driving block. A circular notch is provided on the top of one side surface of the driving block, and a driving pawl is movably engaged with the inner arc surface of the circular notch.

[0013] The top of the back side of the support shaft plate is movably connected to a positioning body via a rotating shaft, the top of the positioning body is movably connected to a movable knife body via a rotating shaft, and a rack is provided on the outer arc surface of the movable knife body.

[0014] The rack on the outer arc surface of the movable knife body is meshed and connected with the driving pawl, and a spring is connected through the driving block and the driving pawl, and the spring is placed on the front side of the positioning body.

[0015] A side of the positioning body away from the driving block is rotatably connected to a stop pawl, a ratchet opening is provided on the top of the outer arc surface of the stop pawl, and the stop pawl is engaged with the rack through the ratchet opening.

[0016] The inner arc surfaces of the positioning body and the movable knife body are placed on the outer arc surface of the cable group. A cutting blade is provided on the inner arc surface of the movable knife body. The inner arc surfaces of the positioning body and the movable knife body are in the same plane as the through hole in the middle of the support shaft plate. A torsion spring is connected between the driving pawl and the stop pawl, and the torsion spring and the spring are in the same plane.

[0017] The beneficial effects of the present invention are as follows: 1. By integrating multiple functions such as cable clamping, pre-cutting, and outer sheath stripping, there is no need to change equipment between different processes, which simplifies the production process. From the initial clamping and pre-cutting after cable loading to the precise stripping of the outer sheath, the errors and losses that may occur in the intermediate links are reduced, which not only improves production efficiency, but also reduces the company's equipment procurement and maintenance costs, thereby improving production benefits.

[0018] 2. The pre-clamping and opening / closing components can adapt to the processing of various specifications and types of power cables. Whether it is round, flat or special-shaped cables, stable clamping and precise processing can be achieved by adjusting the opening and closing degree of the support shaft plate and the position of the matching parts. In addition, the adjustability of the pre-clamping component can flexibly adjust the cutting force and depth according to the different cable materials and thicknesses to meet diverse production needs.

[0019] 3. By driving the engagement of the pawl and the rack of the movable cutter body, combined with the one-way stop structure of the stop pawl, stable pre-clamping and precise preliminary cutting of the cable are achieved. During the cutting process, the stop pawl effectively prevents the movable cutter body from rebounding due to the reaction force of the cable, ensuring that the cutting blade cuts into the cable to a consistent depth each time, greatly improving the cutting accuracy and reducing the scrap rate caused by cutting errors. The cable ends produced are flat and of uniform specifications, meeting the processing requirements of high-quality power cables.

[0020] 4. The support shaft plate is hinged by the upper shaft plate and the lower shaft plate, and stable opening and closing and clamping are achieved through the opening and closing assembly. The cooperation between the gear block and the stop block, under the action of the tension spring, ensures that the support shaft plate will not open accidentally during operation, providing a safe and stable clamping environment for cable processing. The hook edge of the mating part in the processing assembly works together with the stripping blade to stabilize the cable position and efficiently complete the outer sheath stripping.

[0021] 5. The opening and closing components and the anti-retraction pawl structure prevent damage caused by accidental opening of the device or component rebound. At the same time, the guide plate effectively collects and discharges waste, reducing waste accumulation and dust pollution in the workshop, creating a good production environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall processing structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the opening and closing assembly of the present invention; Figure 3 is a front view of the pre-clip assembly of the present invention; Figure 4 This is a schematic diagram of the disassembly structure of the opening and closing components and the processing components in the present invention; Figure 5 It is a schematic diagram of a partial cross-sectional structure of a processing component in the present invention; Figure 6 is a perspective view of the pre-clamping assembly of the present invention; Figure 7 It is a schematic diagram of the back of the overall structure of the present invention; Figure 8 It is a schematic diagram of the disassembled structure of the pre-clamping component in the present invention.

[0024] In the figure: 1, support shaft plate; 11, upper shaft plate; 12, lower shaft plate; 111, hinge end; 121, connection end; 2. Opening and closing assembly; 21. Gear block; 22. Restriction seat; 23. Boss; 24. Stop block; 25. Tension spring; 26. Driving gear; 3. Processing components; 31. Arc frame; 32. Connecting shaft; 33. Matching parts; 331. Hook and buckle edge; 332. Stripping blade; 34. Guide plate; 4. Cable assembly; 5. Pre-clamping assembly; 51. Engagement plate; 52. Driving block; 521. Circular notch; 53. Driving pawl; 54. Positioning body; 55. Moving knife body; 551. Rack; 552. Cutting blade; 56. Spring; 57. Retraction pawl; 58. Torsion spring. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 、 Figure 2 and Figure 4As shown, the embodiment of the present invention includes a support shaft plate 1, which is hingedly connected to an upper shaft plate 11 and a lower shaft plate 12. A hinged end 111 is provided on the side of the outer arc surface of the upper shaft plate 11 close to the lower shaft plate 12, and a connecting end 121 is provided on the top of the outer arc surface of the lower shaft plate 12. The hinged end 111 and the connecting end 121 are connected through a rotating shaft. A through hole is provided in the middle of the support shaft plate 1, and an opening and closing component 2 is fixedly installed in the middle of the inner arc surface of the support shaft plate 1. The opening and closing component 2 includes a gear block 21 that is connected between the two shaft plates, and one side of the upper surface of the gear block 21 is connected to the gear block 21. The inner wall of the upper shaft plate 11 is connected, and one side of the lower surface of the gear block 21 is connected to the lower shaft plate 12. A limiting seat body 22 is provided at the top of the outer arc surface of the upper shaft plate 11, and a boss 23 is provided at the edge of one side surface of the limiting seat body 22. A stop block 24 is movably connected to the side of the limiting seat body 22 close to the boss 23 through a rotating shaft. A through hole is provided on one side surface of the stop block 24, and a tension spring 25 is fixedly installed in the through hole. One end of the tension spring 25 is fixedly installed on the boss 23, and one end of the stop block 24 is meshed with the gear block 21. A processing component 3 is provided at the front end of the support shaft plate 1.

[0027] The hinged end 111 of the upper shaft plate 11 is aligned with the connecting end 121 of the lower shaft plate 12, and a rotating shaft is used to pass through the two to construct a support shaft plate 1 that can be flexibly opened and closed. The connecting shaft 32 driven by the servo motor has one end and the hinged end 111 to form a torque transmission structure. When the motor receives a positive start command, the output torque can overcome the meshing resistance between the gear block 21 and the stop block 24, and drive the upper shaft plate 11 to smoothly flip up with the hinge point as the axis center. During this process, the angle between the upper shaft plate 11 and the lower shaft plate 12 gradually increases, and the through hole in the middle of the support shaft plate 1 is in a gradually expanding state.

[0028] When loading the cable, the operator inserts the cable group 4 to be processed at a uniform speed along the axis of the perforation, and uses the positioning ruler to assist to ensure that the cable group 4 remains in the center position in the perforation. At the same time, the operator carefully checks whether there is any bending or twisting on the surface of the cable. After confirmation, the motor executes the reverse rotation command, and the upper shaft plate 11 slowly falls back under the action of torque, and gradually fits with the lower shaft plate 12 until a complete annular clamping space is formed. When the external power supply is activated, the power is transmitted to the driving gear 26, and the driving gear 26 then rotates clockwise or counterclockwise at a stable angular velocity. With the help of the high-precision tooth meshing structure, the rotational power is efficiently transmitted to the gear block 21. Since the gear block 21 is fixedly connected to the inner wall of the upper shaft plate 11 and the lower shaft plate 12 through high-strength connectors, the upper shaft plate 11 and the lower shaft plate 12 rotate in opposite directions under the drive of the gear block 21. The inner arc surfaces of the two gradually converge toward the cable group 4, and finally form a tight annular wrapping structure, ensuring that the cables are firmly fixed and providing a reliable positioning basis for subsequent processing steps.

[0029] like Figure 2 and Figure 5 As shown, the outer arc surface serrations of the gear block 21 are meshed with the driving gear 26, and the middle part of one side surface of the driving gear 26 is connected to a bearing. The processing assembly 3 includes an arc frame 31 connected to the side surface of the support shaft plate 1. The interior of the arc frame 31 is a hollow structure. A connecting shaft 32 is passed through the top of the front of the arc frame 31. One end of the connecting shaft 32 passes through the outside of the arc frame 31 and is connected to the hinge end 111. The outer arc surface of the connecting shaft 32 is connected to a mating piece 33 through a nut. A hook edge 331 is provided on one side of the mating piece 33. A stripping blade 332 is provided on the side of the mating piece 33 away from the hook edge 331. The hook edge 331 is placed in an annular manner on the peripheral side of the perforation. A material guide plate 34 is fixedly installed on the side of the arc frame 31 away from the connecting shaft 32 by bolts. The material guide plate 34 is placed at the bottom of the stripping blade 332.

[0030] When the gear block 21 rotates under the drive of the driving gear 26, the rotational power is accurately transmitted to the front arc frame 31 through the linkage mechanism of the connecting shaft 32. The arc frame 31 performs smooth circular motion with its hinge point with the support shaft plate 1 as the center of the circle. The matching part 33 installed on the top of the front side of the arc frame 31 rotates synchronously with the rotation of the frame. The hook edge 331 on one side of the fitting 33 has good deformation recovery ability. Before the device is operated, the hook edge 331 has been pre-closely abutted against the outer arc surface of the cable group 4 to form a flexible constraint. During the rotation of the fitting 33, the hook edge 331 can rely on its elastic characteristics to not only firmly fit the cable surface to ensure that the cable will not produce radial displacement during the stripping process, but also adapt to the changes in the outer contour of cables of different diameters to achieve adaptive clamping. As the mating piece 33 continues to rotate, the stripping blade 332 distributed in a ring on the other side rotates and cuts around the circumference of the cable group 4. During the rotation process, the stripping blade 332 cuts into the outer sheath of the cable at a constant cutting depth and performs continuous circular cutting along the axial direction of the cable. Under the dual action of centrifugal force and cutting force, the outer sheath material is gradually cut off and separated from the internal conductor of the cable. The peeled outer sheath waste obtains an initial velocity in the radial outward direction under the action of centrifugal force, and begins to fall downward under the influence of its own gravity. At this time, the guide plate 34 located at the bottom of the stripping blade 332 adopts an inclined design, and the angle of the plate surface can effectively guide the sliding trajectory of the waste. Under the guiding action of the guide plate 34, the waste slides rapidly along a specific direction and is finally collected in a centralized manner, effectively avoiding the accumulation of waste inside the device, ensuring the continuity and efficiency of the processing process, and maintaining the cleanliness of the production environment.

[0031] like Figure 3 、 Figure 6 、 Figure 7 and Figure 8 As shown, a cable group 4 is connected through the middle through-hole of the support shaft plate 1, and a pre-clamping assembly 5 is fixedly installed on the driving gear 26 through one end of the bearing. The pre-clamping assembly 5 includes an involvement plate 51 connected to one end of the bearing, and the involvement plate 51 is movably connected to a driving block 52 on the side away from the driving gear 26. A circular notch 521 is provided on the top of one side surface of the driving block 52, and a driving pawl 53 is movably connected to the inner arc surface of the circular notch 521. The top of the back side of the support shaft plate 1 is movably connected to a positioning body 54 through a rotating shaft, and the top of the positioning body 54 is movably connected to a movable knife body 55 through a rotating shaft. The outer arc surface of the body 55 is provided with a rack 551, and the rack 551 on the outer arc surface of the movable knife body 55 is meshed with the driving pawl 53. A spring 56 is connected through the driving block 52 and the driving pawl 53. The spring 56 is placed on the front side of the positioning body 54, and the side of the positioning body 54 away from the driving block 52 is rotatably connected with a stop pawl 57. The top of the outer arc surface of the stop pawl 57 is provided with a ratchet mouth, and the stop pawl 57 is meshed with the rack 551 through the ratchet mouth. The inner arc surface of the positioning body 54 and the movable knife body 55 are both placed on the outer arc surface of the cable group 4, and the inner arc surface of the movable knife body 55 is provided with a cutting blade 552.

[0032] The engagement plate 51 is connected to one end of the driving gear 26 through the bearing. When the driving gear 26 rotates, the engagement plate 51 rotates synchronously therewith. The driving block 52 is movably connected to the side of the engagement plate 51 away from the driving gear 26. A circular notch 521 is provided on the top of one side surface of the driving block 52. The driving pawl 53 is movably engaged with the inner arc surface of the circular notch 521. The driving pawl 53 can swing within a certain angle range. The positioning body 54 is movably connected to the top of the back of the support shaft plate 1 through a rotating shaft. The top of the movable knife body 55 is movably connected to the positioning body 54 through a rotating shaft. The outer arc surface of the movable knife body 55 is provided with a rack 551, which meshes with the driving pawl 53, and the inner arc surface is provided with a cutting blade 552 for preliminary cutting of the cable. The spring 56 It is connected between the driving block 52 and the driving pawl 53, placed on the front side of the positioning body 54, and is always in a compressed state, providing the driving pawl 53 with an elastic force in the direction of the movable knife body 55, ensuring that the driving pawl 53 is tightly engaged with the rack 551. At the same time, when the driving block 52 returns, the driving pawl 53 can be smoothly reset. The back-stop pawl 57 is rotatably connected to the side of the positioning body 54 away from the driving block 52. The top of its outer arc surface is provided with a ratchet mouth, which engages with the rack 551 on the outer arc surface of the movable knife body 55. The inner arc surface of the positioning body 54 and the movable knife body 55 are in the same plane with the through hole in the middle of the support shaft plate 1. A torsion spring 58 is connected between the driving pawl 53 and the back-stop pawl 57, and the torsion spring 58 and the spring 56 are in the same plane.

[0033] The engaging plate 51 is connected to one end of the driving gear 26 through the bearing, serving as the starting end of the power transmission. When the driving gear 26 rotates, the engaging plate 51 rotates synchronously therewith and performs translational motion under the drive of the engaging plate 51. A circular notch 521 is provided on the top of one side surface of the driving block 52, and the driving pawl 53 is movably engaged with the inner arc surface of the circular notch 521. This movable connection mode enables the driving pawl 53 to swing within a certain angle range. When the driving block 52 is translated under the drive of the engaging plate 51, the driving pawl 53 will interact with the rack 551 on the outer arc surface of the movable knife body 55 as the driving block 52 moves. The positioning body 54 is movably connected to the top of the back side of the support shaft plate 1 through a rotating shaft, providing a rotation fulcrum and positioning reference for the movable knife body 55. The top of the movable knife body 55 is movably connected to the positioning body 54 through a rotating shaft and can rotate around the rotating shaft. The outer arc surface is provided with a rack 551, which meshes with the driving pawl 53, and the inner arc surface is provided with a cutting edge 552, which is used for preliminary cutting of the cable. The spring 56 between the driving block 52 and the driving pawl 53 is always in a compressed state, and the driving pawl 53 provides an elastic force in the direction of the movable knife body 55, ensuring that the driving pawl 53 is tightly engaged with the rack 551. At the same time, when the driving block 52 returns, the driving pawl 53 can be smoothly reset. A stop pawl 57 is connected to the side of the positioning body 54 away from the driving block 52. The ratchet mouth at the top meshes with the rack 551 on the outer arc surface of the movable knife body 55. When the movable knife body 55 rotates around the positioning body 54 under the push of the driving pawl 53, the cable is pre-clamped and preliminarily cut. The stop pawl 57 prevents the movable knife body 55 from rotating in the opposite direction due to the reaction force of the cable or other external forces, ensuring the stable position of the movable knife body 55 and accurate cutting depth.

[0034] Among them, the driving gear 26 rotates to drive the involvement plate 51, and the involvement plate 51 drives the driving block 52 to move horizontally. When the driving block 52 moves, the driving pawl 53 engages with the rack 551 of the movable knife body 55, pushing the movable knife body 55 to rotate counterclockwise around the positioning body 54, so that the positioning body 54 and the inner arc surface of the movable knife body 55 fit the outer arc surface of the cable to achieve pre-clamping. At the same time, the cutting blade 552 cuts into the cable for preliminary cutting. When the driving block 52 returns, the driving pawl 53 is lifted up by the spring 56 and passes over the tooth top of the rack 551, returning to the initial position, waiting for the next drive.

[0035] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0037] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A shearing device for power cable production, characterized in that: The support shaft plate (1) is composed of an upper shaft plate (11) and a lower shaft plate (12) hingedly connected. A hinge end (111) is provided on a side of the outer arc surface of the upper shaft plate (11) close to the lower shaft plate (12). A connecting end (121) is provided on the top of the outer arc surface of the lower shaft plate (12). The hinge end (111) and the connecting end (121) are connected through a rotating shaft. A through hole is provided in the middle of the support shaft plate (1). An opening and closing component (2) is fixedly installed in the middle of the inner arc surface of the support shaft plate (1). The opening and closing assembly (2) includes a gear block (21) that is connected between the two shaft plates, one side of the upper surface of the gear block (21) is connected to the inner wall of the upper shaft plate (11), and one side of the lower surface of the gear block (21) is connected to the lower shaft plate (12). A limiting seat body (22) is provided at the top of the outer arc surface of the upper shaft plate (11), and a boss (23) is provided at the edge of one side surface of the limiting seat body (22). A stop block (24) is movably connected to the side of the limiting seat body (22) close to the boss (23) through a rotating shaft. A through hole is provided on one side surface of the stop block (24), and a tension spring (25) is fixedly installed in the through hole. One end of the tension spring (25) is fixedly installed on the boss (23). One end of the stop block (24) is meshed with the gear block (21). A processing assembly (3) is provided at the front end of the supporting shaft plate (1).

2. A shearing device for power cable production according to claim 1, characterized in that: The gear block (21) is meshed with a driving gear (26) at the serrations on the outer arc surface, and a bearing is connected to the middle of one side surface of the driving gear (26). The processing assembly (3) includes an arc frame (31) connected to one side surface of the support shaft plate (1), the interior of the arc frame (31) is a hollow structure, and a connecting shaft (32) is connected through the top of the front of the arc frame (31).

3. A shearing device for power cable production according to claim 2, characterized in that: One end of the connecting shaft (32) passes through the outside of the arc-shaped frame (31) and is connected to the hinge end (111). The outer arc surface of the connecting shaft (32) is connected to a matching piece (33) via a nut. One side of the matching piece (33) is provided with a hook edge (331).

4. A shearing device for power cable production according to claim 3, characterized in that: A stripping blade (332) is provided on a side of the mating piece (33) away from the hook edge (331), and the hook edge (331) is placed in an annular manner on the circumference of the perforation. A material guide plate (34) is fixedly mounted on a side of the arc-shaped frame (31) away from the connecting shaft (32) by bolts, and the material guide plate (34) is placed at the bottom of the stripping blade (332).

5. A shearing device for power cable production according to claim 2, characterized in that: A cable group (4) is connected through a central through-hole of the support shaft plate (1), and a pre-clamping assembly (5) is fixedly mounted on one end of the driving gear (26) through a bearing; The pre-clamping assembly (5) comprises an engagement plate (51) connected to one end of a bearing, a driving block (52) being movably connected to a side of the engagement plate (51) away from the driving gear (26), a circular notch (521) being provided on the top of one side surface of the driving block (52), and a driving pawl (53) being movably engaged with an inner arc surface of the circular notch (521).

6. A shearing device for power cable production according to claim 5, characterized in that: The top of the back side of the support shaft plate (1) is movably connected to a positioning body (54) via a rotating shaft, and the top of the positioning body (54) is movably connected to a movable knife body (55) via a rotating shaft. The outer arc surface of the movable knife body (55) is provided with a rack (551).

7. A shearing device for power cable production according to claim 6, characterized in that: The rack (551) on the outer arc surface of the movable blade body (55) is meshed with the driving pawl (53), and a spring (56) is connected between the driving block (52) and the driving pawl (53), and the spring (56) is placed on the front side of the positioning body (54).

8. A shearing device for power cable production according to claim 7, characterized in that: A side of the positioning body (54) away from the driving block (52) is rotatably connected to a stop pawl (57), a ratchet opening is provided on the top of the outer arc surface of the stop pawl (57), and the stop pawl (57) is engaged with the rack (551) through the ratchet opening.

9. A shearing device for power cable production according to claim 8, characterized in that: The inner arc surfaces of the positioning body (54) and the movable knife body (55) are both placed on the outer arc surface of the cable group (4), and a cutting blade (552) is provided on the inner arc surface of the movable knife body (55). The inner arc surfaces of the positioning body (54) and the movable knife body (55) are in the same plane as the through hole in the middle of the support shaft plate (1). A torsion spring (58) is connected between the driving pawl (53) and the stop pawl (57), and the torsion spring (58) and the spring (56) are in the same plane.

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