Wire cutting device and wire stripping machine

Abstract

The present invention discloses a wire cutting device and a wire stripping machine, which belongs to the technical field of wire stripping equipment, and includes a housing, a knife seat and two cutters. The knife seat is rotatably matched with a fixed plate in the housing. A clearance hole for the wire to pass through is provided in the center of the knife seat, and two slide grooves connected to the clearance hole are symmetrically provided on the knife seat; the two cutters are slidably installed in the two slide grooves respectively. The driving disk provided in the present invention can rotate. When the driving disk rotates, the driving groove can push the limit column to move in the limit groove, thereby driving the two cutters to move relatively in the slide groove on the knife seat, and cut the wire skin of the wire. The present invention provides a torsion spring between the fixed plate and the knife seat. When the cutter cuts the wire skin, the driving disk rotates to compress the torsion spring, and the cutter maintains the cutting depth and performs a circular cut on the wire skin. When the torsion spring cannot be compressed, the cutter can cut the wire, thereby cutting the wire skin more thoroughly, and avoiding the situation that the wire skin cannot be stripped off or the wire belt has burrs.

Description

Technical Field

[0001] The invention relates to the technical field of wire stripping equipment, and in particular to a wire cutting device and a wire stripping machine. Background Art

[0002] An automatic wire stripping machine is a device that can automatically and continuously slit and strip rolled wires. An automatic wire stripping machine usually includes an inlet wheel group, an outlet wheel group, a guide tube and a wire cutting device, wherein the wire cutting device is responsible for cutting the wire and cutting the wire sheath.

[0003] The existing wire cutting device uses two V-shaped knives that move relative to each other, and the blades are V-shaped. The wire is cut by the relative movement of the two V-shaped knives. However, when the V-shaped knives cut the wire with thinner sheath, in order not to damage the wire core, the sheath is often not fully cut, resulting in the failure to peel off the sheath and the appearance of burrs on the sheath break. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the object of the present invention is to provide a wire cutting device and a wire stripping machine, which can rotate the cutter after cutting the wire sheath to make the cutting more complete.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a wire cutting device, comprising:

[0006] The casing has a fixing plate disposed below;

[0007] The knife seat is rotatably matched with the fixed plate, the center of the knife seat is provided with a clearance hole for the wire to pass through, the knife seat is symmetrically provided with two slide grooves connected with the clearance hole, and the side of the knife seat away from the fixed plate is symmetrically provided with two limit grooves connected with the slide groove;

[0008] Two cutters are slidably mounted in the two slide grooves respectively, and the cutters are fixed with limit columns slidably mounted in the limit grooves;

[0009] The driving mechanism comprises a driving disc rotatably matched with the knife seat, and the driving disc is provided with two driving grooves for driving the limiting posts to move in the limiting grooves;

[0010] The torsion spring is arranged between the fixing plate and the knife seat.

[0011] Preferably, a mounting cylinder and a rotating cylinder are respectively fixed to both ends of the knife seat, the rotating cylinder is rotatably mounted on the fixed plate, and the driving disk is rotatably mounted on the mounting cylinder.

[0012] Preferably, the torsion spring is sleeved on the rotating drum, one end of the torsion spring is fixed to a first limiting portion on the fixed plate, and the other end of the torsion spring is fixed to a second limiting portion on the knife seat.

[0013] Preferably, an adjustment mechanism is provided on the knife seat, and the adjustment mechanism includes a mounting hole opened on the knife seat and an adjustment block slidably installed in the mounting hole, the mounting hole is connected to one of the limit slots, and one end of the adjustment block is provided with a slope that cooperates with the limit column. When the adjustment block moves in the mounting hole, the space available for the limit column to move in the limit slot changes accordingly.

[0014] Preferably, the adjustment mechanism also includes a swivel seat fixed on the knife seat, an adjustment rod is rotatably mounted on the swivel seat, the adjustment rod is inserted into the mounting hole, a limit block is threadedly mounted on the adjustment rod between the swivel seat and the adjustment block, and a spring is sleeved on the adjustment rod between the limit block and the adjustment block.

[0015] Preferably, the driving groove is arc-shaped, and the distance between one end of the driving groove and the center of the driving disk is smaller than the distance between the other end of the driving groove and the center of the driving disk.

[0016] Preferably, a driving shaft is rotatably installed in the housing, a gear is fixed on the driving shaft, and a gear ring meshing with the gear is provided on the driving disc.

[0017] A wire stripping machine comprises the above-mentioned wire cutting device.

[0018] The beneficial effects of the present invention are as follows: the driving disk provided in the present invention can rotate, and when the driving disk rotates, the driving groove can push the limiting column to move in the limiting groove, thereby driving the two cutters to move relative to each other in the sliding groove on the knife seat, so as to cut the wire skin of the conductor. The present invention provides a torsion spring between the fixed plate and the knife seat. When the cutter cuts the wire skin, the driving disk will compress the torsion spring when it rotates, and the cutter will maintain the cutting depth and perform a circular cut on the wire skin. When the torsion spring cannot be compressed, the cutter can cut off the conductor, thereby cutting the wire skin more thoroughly, avoiding the situation where the wire skin cannot be peeled off or the wire skin has burrs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of a wire stripping machine provided in an embodiment of the present invention.

[0021] Figure 2 A three-dimensional diagram of a thread cutting device provided by the present invention.

[0022] Figure 3The present invention provides a front view of a thread cutting device.

[0023] Figure 4 The present invention provides a side view of a thread cutting device.

[0024] Figure 5 The present invention provides a top view of a tangent device.

[0025] Figure 6 for Figure 5 Cross-sectional view at BB in the middle.

[0026] Figure 7 This is a schematic diagram of the structure of the present invention after omitting the housing and the drive disk.

[0027] Description of reference numerals:

[0028] 1. Casing, 2. Fixed plate, 3. Knife seat, 4. Clearance hole, 5. Slide groove, 6. Cutter, 7. Limiting groove, 8. Limiting column, 9. Mounting cylinder, 10. Driving disk, 11. Driving groove, 12. Rotating cylinder, 13. Torsion spring, 14. First limiting part, 15. Second limiting part, 16. Driving shaft, 17. Gear, 18. Gear ring, 19. Mounting hole, 20. Adjusting block, 21. Rotating seat, 22. Adjusting rod, 23. Limiting block, 24. Spring, 25. Ramp, 26. Conveying roller group. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] like Figures 1 to 7 As shown, the first embodiment of the present invention provides a wire cutting device, which is mainly used for cutting single-core wires, including a housing 1 and a fixed plate 2 fixed below the housing 1, a knife seat 3 is mounted on the fixed plate 2 through a bearing, the knife seat 3 is in a circular ring shape, and a clearance hole 4 is opened in the center of the knife seat 3 for the wire to pass through. Two slide grooves 5 are symmetrically opened on the knife seat 3, and a cutter 6 is slidably installed in the two slide grooves 5, and the blade of the cutter 6 is V-shaped.

[0032] In order to better cut the wire with thinner wire sheath, the knife seat 3 of the present invention can rotate on the fixing plate 2. After the blade cuts into the wire sheath of the wire, the knife seat 3 rotates so that the blade can rotate around the wire, thereby performing a circular cut on the wire sheath of the wire, so that the wire sheath can be cut off more thoroughly, the wire sheath burr phenomenon can be avoided, and the wire stripping effect can be improved.

[0033] Specifically, the knife holder 3 of the present invention has two symmetrically arranged limit grooves 7 on one side away from the fixed plate 2, and the two limit grooves 7 are respectively connected with the two slide grooves 5. The limit pillar 8 is fixed on the cutter 6, and the limit pillar 8 can extend from the limit groove 7. When the cutter 6 moves in the slide groove 5, the limit pillar 8 also moves in the limit groove 7. Therefore, by driving the limit pillar 8 to move in the limit groove 7, the cutter 6 can be driven to cut or cut the wire.

[0034] In order to realize the rotation of the cutter 6 after cutting the wire skin, the present invention is provided with a driving mechanism, which includes a mounting cylinder 9 fixed to one side of the knife seat 3, and a driving disk 10 is sleeved on the mounting cylinder 9. The driving disk 10 is provided with two centrally symmetrical driving grooves 11. Figure 3 As shown, the driving groove 11 is arc-shaped, one end of which is closer to the center of the driving disk 10, while the other end is farther from the center of the driving disk 10. The two limiting posts 8 are respectively slidably matched with the two driving grooves 11. When the knife seat 3 is used as a reference, if the driving disk 10 rotates, the limiting action of the driving groove 11 can allow the limiting post 8 to move along the limiting groove 7, so that the cutter 6 can be driven to move in the slide groove 5. Since the cutter 6, the slide groove 5, the driving groove 11, the limiting groove 7 and the limiting post 8 are symmetrically arranged in two, when the driving disk 10 rotates relative to the knife seat 3, the two cutters 6 can be driven to move symmetrically toward the wire in the clearance hole 4, and the wire is pushed to the center of the clearance hole 4 and then cut. In this way, when the knife seat 3 rotates, the two cutters 6 can be rotated with the wire as the center to perform a circular cut on the wire skin.

[0035] like Figure 4 As shown, a rotating drum 12 is fixed to one end of the knife seat 3 close to the fixed plate 2, and the rotating drum 12 is rotatably mounted on the fixed plate 2 through a bearing. A torsion spring 13 is sleeved on the rotating drum 12, one end of the torsion spring 13 is fixed by a first limiting portion 14 fixed on the fixed plate 2, and the other end of the torsion spring 13 is fixed by a second limiting portion 15 fixed on the knife seat 3.

[0036] In the initial state, the torsion spring 13 is in a relaxed state, the limiting column 8 is located at the end of the driving slot 11 away from the center of the driving disc 10, and at this time, the distance between the two cutters 6 is the largest.

[0037] When in use, the drive disk 10 rotates, which causes the drive slot 11 to push the limit column 8 to move in the limit slot 7, allowing the two cutters 6 to approach each other until the cutter 6 cuts through the wire skin and rests on the wire. Since the hardness of the wire is higher than the wire skin, the movement of the cutter 6 is hindered. When the drive disk 10 continues to rotate, the limit column 8 will drive the knife seat 3 to rotate, compressing the torsion spring 13, and at the same time, the cutter 6 performs a circular cut on the wire skin. When it is necessary to cut the wire, the drive disk 10 only needs to be rotated further until the torsion spring 13 cannot be compressed, so that the knife seat 3 can no longer rotate, and the drive slot 11 will drive the limit column 8 to move along the limit slot 7 again, allowing the two cutters 6 to cooperate to cut the wire.

[0038] In order to rotate the drive disk 10, a motor is installed in the housing 1, and the motor can drive the drive shaft 16 installed in the housing 1 to rotate, and a gear 17 is fixed on the drive shaft 16, and a gear ring 18 meshing with the gear 17 is provided on the drive disk 10, so that the motor can control the rotation of the drive disk 10. The motor is a servo motor, which can accurately control the number of revolutions of the gear 17, thereby controlling whether the cutter 6 cuts the wire skin or cuts the wire.

[0039] Embodiment 2:

[0040] On the basis of the first embodiment, in order to be able to adjust the depth of the cutter 6 cutting the wire skin within a certain range, so as to be suitable for cutting wire skins of various thicknesses, the present invention is provided with an adjustment mechanism, specifically, as Figure 6 As shown, the adjustment mechanism of the present invention includes a mounting hole 19 provided on the knife seat 3, an adjustment block 20 is slidably mounted in the mounting hole 19, and the mounting hole 19 is connected to one of the limiting grooves 7. By changing the position of the adjustment block 20 in the mounting hole 19, the adjustment block 20 can change the size of the limiting groove 7 space available for the limiting column 8 to move, that is, limit the position of the cutter 6 moving in the slide groove 5.

[0041] A rotating seat 21 is fixed on the knife seat 3, and an adjusting rod 22 is rotatably mounted on the rotating seat 21. The adjusting rod 22 is partially inserted into the mounting hole 19. Figure 6 As shown, the portion of the adjusting rod 22 between the rotating seat 21 and the adjusting block 20 is threadedly mounted with a limit block 23, and a spring 24 is sleeved on the adjusting rod 22 between the limit block 23 and the adjusting block 20. In this way, when the adjusting rod 22 is rotated, the position of the limit block 23 in the mounting hole 19 can be adjusted by the thread, thereby changing the position of the adjusting block 20 in the mounting hole 19.

[0042] like Figure 6As shown, a slope 25 is provided at one end of the adjusting block 20 near the limiting groove 7. When in use, as the driving disk 10 rotates, the limiting post 8 moves in the limiting groove 7 until the limiting post 8 abuts against the slope 25. The spring 24 of the present invention is harder than the torsion spring 13. Thus, since the adjusting block 20 is abutted by the spring 24, as the driving disk 10 rotates, the torsion spring 13 will rotate first, causing the cutter 6 to perform a circular cut on the wire skin. When the torsion spring 13 cannot be compressed, the driving disk 10 continues to rotate, so that the limiting post 8 can push the adjusting block 20 to compress the spring 24, allowing the limiting post 8 to continue to move, and the cutter 6 cuts the wire.

[0043] Therefore, rotating the adjustment rod 22 can change the depth of the wire sheath cut by the cutter 6 before the cutter 6 starts to peel and cut, thereby being used to cut wires with different wire sheath thicknesses.

[0044] Embodiment three:

[0045] On the basis of the first and second embodiments, the present invention proposes a wire stripping machine, including the above-mentioned wire cutting device, and also including two conveying roller groups 26. The conveying roller group 26 is used to drive the wire to move, and the wire cutting device can cut and cut the wire. By controlling the speed and direction of the conveying roller group 26 to convey the wire, the wire can be cut into a certain length of wire material in cooperation with the wire cutting device, and the end is stripped. The cooperation between the conveying roller group 26 and the wire cutting device can refer to the existing fully automatic wire stripping machine, and the focus of the improvement of the present invention is on the wire cutting device.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A wire cutting device, characterized in that: include: A housing (1) with a fixing plate (2) disposed below; The knife seat (3) is rotatably matched with the fixed plate (2); a clearance hole (4) for the wire to pass through is provided at the center of the knife seat (3); two slide grooves (5) connected to the clearance hole (4) are symmetrically provided on the knife seat (3); and two limit grooves (7) connected to the slide grooves (5) are symmetrically provided on a side of the knife seat (3) away from the fixed plate (2); Two cutters (6) are slidably mounted in the two slide grooves (5) respectively, and a limiting column (8) is fixed on the cutter (6) and is slidably mounted in the limiting groove (7); The driving mechanism comprises a driving disk (10) rotatably matched with the knife seat (3), wherein the driving disk (10) is provided with two driving grooves (11) for driving the limiting column (8) to move in the limiting groove (7); A torsion spring (13) is arranged between the fixing plate (2) and the knife seat (3); A mounting cylinder (9) and a rotating cylinder (12) are respectively fixed at both ends of the knife seat (3); the rotating cylinder (12) is rotatably mounted on the fixed plate (2), and the driving disc (10) is rotatably mounted on the mounting cylinder (9); The torsion spring (13) is sleeved on the rotating drum (12), one end of the torsion spring (13) is fixed to a first limiting portion (14) on the fixing plate (2), and the other end of the torsion spring (13) is fixed to a second limiting portion (15) on the knife seat (3); The knife seat (3) is provided with an adjustment mechanism, the adjustment mechanism comprising a mounting hole (19) provided on the knife seat (3) and an adjustment block (20) slidably mounted in the mounting hole (19), the mounting hole (19) being connected to one of the limiting grooves (7), one end of the adjustment block (20) being provided with a slope (25) cooperating with the limiting column (8), when the adjustment block (20) moves in the mounting hole (19), the space in the limiting groove (7) available for the limiting column (8) to move changes accordingly; The adjustment mechanism further comprises a rotating seat (21) fixed on the knife seat (3), an adjustment rod (22) being rotatably mounted on the rotating seat (21), the adjustment rod (22) being inserted into the mounting hole (19), a limit block (23) being threadedly mounted on the adjustment rod (22) between the rotating seat (21) and the adjustment block (20), and a spring (24) being sleeved on the adjustment rod (22) between the limit block (23) and the adjustment block (20).

2. A wire cutting device according to claim 1, characterized in that: The driving groove (11) is arc-shaped, and the distance between one end of the driving groove (11) and the center of the driving disk (10) is smaller than the distance between the other end of the driving groove (11) and the center of the driving disk (10).

3. A wire cutting device according to claim 1, characterized in that: A drive shaft (16) is rotatably mounted in the housing (1), a gear (17) is fixed on the drive shaft (16), and a gear ring (18) meshing with the gear (17) is provided on the drive disc (10).

4. A wire stripping machine, characterized in that: The invention comprises a wire cutting device as described in any one of claims 1 to 3.

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