A stranding device for cable production

Abstract

The present invention discloses a stranding device for cable production, which relates to the technical field of cables and includes a stranding machine, wherein the stranding machine is rotatably connected to a stranding drum, the stranding machine is fixed to support rods symmetrically distributed along the stranding machine, a gathering frame and a guide frame are slidably connected between the symmetrically distributed support rods, the gathering frame is located between the stranding drum and the guide frame, and the gathering frame and the guide frame are fixed to the support rods by screws, a wire-binding hole is provided in the middle of the gathering frame, and a wire threading hole is provided in the circumferential direction of the guide frame, and a contact switch is slidably connected to one side of the guide frame near each wire threading hole. In addition to the photoelectric sensor for detecting broken wires, the present invention is also assisted by a contact switch, so that the stranding machine can be controlled to stop in time when the wire breaks, so as to avoid the broken wire being twisted into the whole cable due to the inability to connect or replace the broken wire in time, thereby avoiding affecting the production efficiency and product quality of the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a stranding device for cable production. Background Art

[0002] In cable production, stranding refers to the process of twisting multiple individual filaments (such as copper or aluminum wires) together at a specific pitch and direction to form one or more strands of conductor. Bundling is a fundamental step in stranding, primarily involving the process of bundling multiple filaments into a thicker conductor to improve conductivity, flexibility, and mechanical strength.

[0003] During the cable stranding production process, visual inspection is often used. This involves installing photoelectric sensors to collect data and using image processing algorithms to identify anomalies (such as broken or exposed conductors) to inspect the cable surface for visible breaks or damage. However, in practice, when break detection relies on photoelectric sensors to determine if a cable has broken, the broken portion can remain within the sensor's detection range. Consequently, traditional photoelectric sensors may be unable to detect this state change in a timely manner, resulting in a delayed response. This can prevent the equipment from being stopped immediately to reconnect or replace the broken strands, potentially causing the broken strands to become entangled in the cable, impacting production efficiency and product quality. Summary of the Invention

[0004] In order to overcome the disadvantage that photoelectric sensors may delay response due to failure to identify the disconnection state in time, the present invention provides a stranding device for cable production.

[0005] A stranding device for cable production includes a stranding machine, which is rotatably connected to a stranding drum. The stranding machine is fixed with support rods symmetrically distributed along the stranding machine, and a gathering frame and a guide frame are slidably connected between the symmetrically distributed support rods. The gathering frame is located between the stranding drum and the guide frame, and the gathering frame and the guide frame are fixed to the support rods by screws. A wire closing hole is opened in the middle of the gathering frame, and a wire threading hole is opened in the circumferential direction. A contact switch is slidably connected to one side of the guide frame close to each wire threading hole, and the contact switch is electrically connected to the stranding machine through a control module. A first spring is fixed between the contact switch and the guide frame, and a photoelectric sensor is fixed to the middle of the guide frame, and the photoelectric sensor is electrically connected to the stranding machine through the control module. The contact switch moves toward the center of the guide frame and contacts the photoelectric sensor.

[0006] In one embodiment, it also includes a turntable, which is fixedly connected to the wire drum, and the turntable is slidably connected to a sliding rod symmetrically distributed along the turntable, the gathering frame is slidably connected to a pulling frame, the sliding rod is used to squeeze the pulling frame to slide toward the side away from the contact switch, and the side of the pulling frame away from the sliding rod is plugged with an insert block symmetrically distributed along the pulling frame, the guide frame is slidably connected to a guide frame, the guide frame is used to squeeze the contact switch to slide toward the side of the compressed first spring, the insert block is in contact with the guide frame, and a circumferentially distributed first tension spring is fixed between the guide frame and the guide frame.

[0007] In one embodiment, the end surface of the pull bracket close to the slide rod is configured as a wedge-shaped surface, and the pull bracket is extruded and fitted with the slide rod through the wedge-shaped surface.

[0008] In one embodiment, a side of the contact switch close to the guide frame is provided with a wedge-shaped surface, and the contact switch is extruded and fitted with the guide frame through the wedge-shaped surface.

[0009] In one embodiment, the elastic coefficient of the first tension spring is greater than the elastic coefficient of the first spring.

[0010] In one embodiment, there are also blocks symmetrically distributed along the turntable, the blocks are slidably connected to the turntable, the blocks are in contact with adjacent sliding rods, and the contact surface of the blocks is set to be V-shaped, and a second spring is fixed between the blocks and the turntable.

[0011] In one embodiment, it also includes an L-shaped fixing rod corresponding to the sliding rod, the L-shaped fixing rod is slidably connected to the corresponding sliding rod, one end of the L-shaped fixing rod is in contact with the turntable, a second tension spring is fixed between the L-shaped fixing rod and the corresponding sliding rod, the turntable has card holes symmetrically distributed along the turntable, and the L-shaped fixing rod is moved and inserted into the corresponding card holes.

[0012] In one embodiment, it also includes a magnetic guide frame, which is slidably connected to the guide frame, one side of the magnetic guide frame is set as a wedge-shaped surface, the guide frame is slidably connected to a circumferentially distributed wire-grabbing block, the wire-grabbing block is slidably connected to the magnetic guide frame, and the magnetic guide frame is squeezed and fitted with the wire-grabbing block through the wedge-shaped surface, the wire-grabbing block has a groove, a circumferentially distributed third spring is fixed between the magnetic guide frame and the guide frame, the guide frame is fixed with at least one electromagnet, the electromagnet attracts the magnetic guide frame through magnetic force, and the contact switch is electrically connected to the electromagnet through a control module.

[0013] The beneficial effects are:

[0014] 1. In addition to the photoelectric sensor for wire break detection, the present invention also uses a contact switch for assistance, so that when the wire breaks, the stranding machine can be controlled to stop suddenly in time, avoiding the failure to connect or replace the broken single wire in time, which causes the broken single wire to be twisted into the whole cable, thereby avoiding affecting the production efficiency and product quality of the cable.

[0015] 2. The present invention squeezes and pushes all the contact switches open by the guide frame, so that the wire threading holes of the guide frame are fully opened, which is convenient for threading the wire. When twisting the wire, the centrifugal force is used to move the guide frame away to relieve the force of the contact switch, so that each contact switch is only affected by the tension of the single wire during the twisting process.

[0016] 3. The present invention provides a clamping block and a second spring to slow down the sliding speed of the slide bar in the early stage, thereby ultimately achieving the purpose of delaying the removal of the guide frame in the early stage and reducing the possibility of an unexpected shutdown.

[0017] 4. The present invention fixes the sliding rod after sliding outward by setting an L-shaped fixing rod, so that when a wire break occurs and the stranding machine is immediately shut down, the position of the wire break can be conveniently and intuitively located by observing the closure of the wire threading hole, which is helpful for subsequent sorting out of the broken wire and wiring or changing the wire.

[0018] 5. At the moment of wire breaking, the present invention can catch the broken wire through the groove of the wire-catching block as much as possible, so that the broken wire can be quickly found at the wire-threading hole of the guide frame later. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the components such as the stranding machine, the stranding drum and the support rod of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the guide frame, contact switch and first spring of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the contact switch, the first spring and the photoelectric sensor of the present invention.

[0023] Figure 5 It is a three-dimensional structural diagram of the sliding rod, the pull frame and the insert block of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the present invention with the turntable, slide rod, pull frame, insert block and guide frame separated.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the turntable, slide bar, clamping block and second spring of the present invention.

[0026] Figure 8 This is a schematic diagram of the three-dimensional structure of the present invention with the L-shaped fixing rod and the second tension spring and other components separated.

[0027] Figure 9 It is a schematic diagram of the three-dimensional structure of the magnetic guide frame, the wire grabbing block and the third spring and other components of the present invention.

[0028] Figure 10 It is a schematic diagram of the three-dimensional structure of the magnetic guide frame and the wire grabbing block separated from each other in the present invention.

[0029] In the accompanying drawings: 1-twisting machine, 2-twisting drum, 3-support rod, 4-gathering frame, 5-screw, 6-guide frame, 7-contact switch, 8-first spring, 9-photoelectric sensor, 10-turntable, 11-slide rod, 12-pull frame, 13-insert block, 14-guide frame, 15-first tension spring, 16-block, 17-second spring, 18-L-shaped fixing rod, 19-second tension spring, 20-magnetic guide frame, 21-catch block, 211-groove, 22-third spring, 23-electromagnet. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0031] Example 1: A stranding device for cable production, combined with the attached Figure 1 To the attached Figure 4 The guide frame 6 is fixed with a first spring 8 and a second spring 9 is fixed with a first spring 9 and a second spring 10. The first spring 11 is fixed with a first spring 12 and a second spring 13. The first spring 13 is fixed with a first spring 14 and a second spring 15. The first spring 15 is fixed with a first spring 16 and a second spring 17. The first spring 18 is fixed with a first spring 19 and a second spring 10. The first spring 19 is fixed with a first spring 10 and a second spring 11. The first spring 18 is fixed with a first spring 10 and a second spring 11. The first spring 18 is fixed with a first spring 10 and a second spring 11. The first spring 18 is fixed with a first spring 10 and a second spring 11. The first spring 18 is fixed with a first spring 10 and a second spring 11. The first spring 18 is fixed with a first spring 10 and a second spring 11. The first spring 18 is fixed with a first spring 10 and a second spring 11. The first spring 18 is fixed with a first spring 10 and a second spring 11. The first spring 18 is fixed with a first spring 10 and a first spring 10 ...

[0032] First, each single wire used for cable twisting is passed through the wire threading holes of the guide frame 6 to the left, and then each single wire is passed through the wire combining hole of the gathering frame 4 to the left, and then inserted into the twisting drum 2. Then the twisting machine 1 is turned on to bundle multiple thin single wires into a thicker cable conductor. During the twisting process, the photoelectric sensor 9 is used to collect data and the image processing algorithm is used to identify broken wire anomalies. When a broken wire is identified, the photoelectric sensor 9 can control the twisting machine 1 to stop urgently through the control module. After the twisting is completed, the twisting machine 1 is turned off.

[0033] In addition, during the stranding process, when the individual monofilaments converge from the wire threading holes of the guide frame 6 to the wire combining holes of the gathering frame 4, the tensioning force will squeeze the contact switch 7 to slide toward the side of the compressed first spring 8, so that each contact switch 7 is in contact with the photoelectric sensor 9. If any of the monofilaments breaks, the broken monofilament immediately loses tension, causing the corresponding contact switch 7 to disengage from the photoelectric sensor 9. At this time, the corresponding contact switch 7 controls the stranding machine 1 to shut down immediately through the control module.

[0034] In this way, the present invention is assisted by the contact switch 7 on the basis of the photoelectric sensor 9 for wire break detection, so that the stranding machine 1 can be controlled to stop urgently in time when the wire is broken, avoiding the failure to connect or replace the broken single wire in time, resulting in the broken single wire being twisted into the whole cable, thereby avoiding affecting the production efficiency and product quality of the cable.

[0035] Example 2: Based on Example 1, Figure 5 and attached Figure 6 , it also includes a turntable 10, the turntable 10 is fixedly connected to the wire drum 2, the turntable 10 is slidably connected to the slide rod 11 symmetrically distributed along the front and back of the turntable 10, the gathering frame 4 is slidably connected to the pull frame 12 along the left and right directions, the end face of the pull frame 12 close to the slide rod 11 is set to a wedge surface, the pull frame 12 is squeezed and matched with the slide rod 11 through the wedge surface, the slide rod 11 can squeeze the pull frame 12 to slide to the left, and the right side of the pull frame 12 is plugged with an insert block 13 symmetrically distributed along the front and back of the pull frame 12 in the up and down direction. The insert block 13 is inserted into the pull frame 12 by plugging, and the guide frame 14 can be slid to the right along the guide frame 6 without affecting the guide frame 14. The guide frame 6 is disassembled without affecting the gathering frame 4 being slid and removed to the right. The left side of the guide frame 6 is connected to the guide frame 14 for sliding along the left and right directions. The side of the contact switch 7 close to the guide frame 14 is set to a wedge-shaped surface. The contact switch 7 is squeezed and matched with the guide frame 14 through the wedge surface. The guide frame 14 can squeeze the contact switch 7 to slide to the side of the compressed first spring 8. The plug 13 is in contact with the guide frame 14, and the plug 13 is inserted between the guide frame 14 and the guide frame 6. A circumferentially distributed first tension spring 15 is fixed between the guide frame 14 and the guide frame 6. The elastic coefficient value of the first tension spring 15 is greater than the elastic coefficient value of the first spring 8.

[0036] In order to facilitate wire threading, initially, all contact switches 7 need to be squeezed and pushed open by the guide frame 14 so that the wire threading holes of the guide frame 6 are fully opened. At this time, each contact switch 7 is pushed to contact the photoelectric sensor 9. When stranding, the guide frame 14 needs to be removed to release the force on the contact switch 7 so that each contact switch 7 is only affected by the tension of the single wire during the stranding process. The specific operation of removing the guide frame 14 during stranding is as follows:

[0037] When twisting the wire, the wire drum 2 rotates at high speed, driving the turntable 10 to rotate at high speed, so that the slide rod 11 slides outward under the action of centrifugal force, and the slide rod 11 squeezes the wedge-shaped surface of the pull frame 12, so that the pull frame 12 pulls the guide frame 14 to move to the left through the plug block 13. The first tension spring 15 is stretched, and the guide frame 14 no longer squeezes the contact switches 7, thereby achieving the force release of the guide frame 14 on the contact switch 7; when the wire drum 2 stops rotating, the slide rod 11 is no longer subjected to the centrifugal force to squeeze the pull frame 12, and the first tension spring 15 is reset, driving the guide frame 14 to slide to the right and reset. The guide frame 14 drives the pull frame 12 to move to the right and reset through the plug block 13, and the pull frame 12 squeezes the slide rod 11 inward through the wedge surface to slide and reset.

[0038] Combined with attachment Figure 7 , and also includes a block 16 symmetrically distributed along the front and back of the turntable 10. The block 16 is slidably connected to the turntable 10. The block 16 contacts the adjacent slide bar 11, and the contact surface of the block 16 is set to be V-shaped. A second spring 17 is fixed between the block 16 and the turntable 10.

[0039] In the early stage of stranding, each single wire may not have entered the fully tensioned stranding state in time. If the guide frame 14 is removed when the stranding drum 2 starts to rotate, the contact switch 7 may be affected by neither the squeezing force of the guide frame 14 nor the tensioning force of the single wire, which may cause the contact switch 7 to disconnect the photoelectric sensor 9 in advance, and then there is a great possibility of an incorrect shutdown. Therefore, it is necessary to delay the operation of removing the guide frame 14 through the following operations. Specifically: when the slide bar 11 slides outward under the action of centrifugal force, it needs to overcome the resistance from the block 16 and the second spring 17 in the initial stage. In this way, the sliding speed of the slide bar 11 is initially slowed down, and finally the purpose of delaying the removal of the guide frame 14 in the initial stage is achieved.

[0040] Example 3: Based on Example 2, Figure 8 , and also includes an L-shaped fixing rod 18 corresponding to the sliding rod 11. The L-shaped fixing rod 18 is slidably connected to the corresponding sliding rod 11. The left end of the L-shaped fixing rod 18 contacts the turntable 10. A second tension spring 19 is fixed between the L-shaped fixing rod 18 and the corresponding sliding rod 11. The turntable 10 has card holes symmetrically distributed along the turntable 10. The L-shaped fixing rod 18 moves outward and is inserted into the corresponding card hole.

[0041] When a wire break occurs and the stranding machine 1 is shut down immediately, if the slide bar 11 automatically resets inward, all the contact switches 7 will also automatically return to their initial state of being squeezed and pushed open by the guide frame 14, so that the wire break cannot be visually detected. Therefore, after the slide bar 11 slides outward under the action of centrifugal force, when the slide bar 11 drives the L-shaped fixing rod 18 to move to the clamping hole, the second tension spring 19 in the stretched state immediately resets and drives the L-shaped fixing rod 18 to be inserted into the clamping hole of the turntable 10, thereby fixing the slide bar 11 in the position after sliding outward. In this way, when a wire break occurs and the stranding machine 1 shuts down immediately, the slide bar 11 cannot be reset inward, so that the guide frame 14 cannot be reset immediately, and the first spring 8 at the broken wire position will reset, and push the corresponding contact switch 7 to slide and close the wire threading hole at the broken wire position of the guide frame 6. By observing the closing of the wire threading hole, the position of the broken wire can be conveniently and intuitively located, which is helpful for subsequent sorting out the broken wire and wiring or changing the wire. When it is necessary to restore the initial state, pull the L-shaped fixing rod 18 to the right to disengage the L-shaped fixing rod 18 from the card hole of the turntable 10.

[0042] Combined with attachment Figure 9 and attached Figure 10 , also includes a magnetic guide frame 20, the magnetic guide frame 20 is slidingly connected to the guide frame 6, the right side of the magnetic guide frame 20 is set to a wedge-shaped surface, the guide frame 6 is slidingly connected with a circumferentially distributed wire-catching block 21, the wire-catching block 21 is slidingly connected to the magnetic guide frame 20, and the magnetic guide frame 20 is squeezed and matched with the wire-catching block 21 through the wedge-shaped surface. The magnetic guide frame 20 moves to the right to squeeze the wire-catching block 21 to move inward, and a groove 211 is provided on the side of the wire-catching block 21 close to the adjacent wire threading hole. A circumferentially distributed third spring 22 is fixedly connected between the magnetic guide frame 20 and the guide frame 6, and two front and rear electromagnets 23 are fixedly connected to the right side of the guide frame 6. The contact switch 7 is electrically connected to the electromagnet 23 through the control module, and the electromagnet 23 moves to the right by magnetic attraction.

[0043] When the wire breaks, the originally stretched parts at both ends of the wire shrink rapidly due to the sudden release of tension and the elastic properties of the material itself, making it difficult to find the broken wire later. For this reason, when the wire breaks, the corresponding contact switch 7 controls the electromagnet 23 to be energized through the control module. Under the action of magnetic attraction, the magnetic guide frame 20 slides to the right, and the third spring 22 is compressed. The magnetic guide frame 20 squeezes the wire grabbing block 21 through the wedge-shaped surface on the right side to slide toward the side of the wire threading hole adjacent to the guide frame 6, so that the wire grabbing block 21 can grab the broken wire as much as possible through the groove 211 at the moment of breaking, so that the broken wire can be quickly found at the wire threading hole of the guide frame 6 later.

[0044] Although the above embodiments describe the present invention in detail, it will be apparent to those skilled in the art from this disclosure that various changes or modifications may be made to the present invention without departing from the principles and spirit of the invention as defined in the claims. Therefore, the detailed description of the disclosed embodiments is intended to be illustrative only and not to limit the present invention, which is to be defined by the claims.

Claims

1. A stranding device for cable production, comprising a stranding machine (1), the stranding machine (1) being rotatably connected to a stranding drum (2), the stranding machine (1) being fixedly connected to support rods (3) symmetrically distributed along the stranding machine (1), a gathering frame (4) and a guide frame (6) being slidably connected between the symmetrically distributed support rods (3), the gathering frame (4) being located between the stranding drum (2) and the guide frame (6), the gathering frame (4) and the guide frame (6) being fixed to the support rods (3) by screws (5), a wire-binding hole being opened in the middle of the gathering frame (4), and a wire-threading hole being opened in the circumferential direction of the guide frame (6), characterized in that: The guide frame (6) is slidably connected to a contact switch (7) on one side close to each threading hole. The contact switch (7) is electrically connected to the stranding machine (1) through a control module. A first spring (8) is fixedly connected between the contact switch (7) and the guide frame (6). A photoelectric sensor (9) is fixedly connected to the middle of the guide frame (6). The photoelectric sensor (9) is electrically connected to the stranding machine (1) through a control module. The contact switch (7) moves toward the center of the guide frame (6) and contacts the photoelectric sensor (9). The guide frame (6) also includes a turntable (10), which is fixedly connected to the stranding drum (2). The turntable (10) is slidably connected to a spring along the turntable (10). ) symmetrically distributed slide bars (11), the gathering frame (4) is slidably connected to a pull frame (12), the slide bar (11) is used to squeeze the pull frame (12) to slide toward the side away from the contact switch (7), the side of the pull frame (12) away from the slide bar (11) is plugged with an insert block (13) symmetrically distributed along the pull frame (12), the guide frame (6) is slidably connected to a guide frame (14), the guide frame (14) is used to squeeze the contact switch (7) to slide toward the side of the compressed first spring (8), the insert block (13) is in contact with the guide frame (14), and a circumferentially distributed first tension spring (15) is fixed between the guide frame (14) and the guide frame (6).

2. A stranding device for cable production according to claim 1, characterized in that: The end surface of the pull frame (12) close to the slide rod (11) is set as a wedge-shaped surface, and the pull frame (12) is extruded and matched with the slide rod (11) through the wedge-shaped surface.

3. A stranding device for cable production according to claim 2, characterized in that: A side of the contact switch (7) close to the guide frame (14) is provided as a wedge-shaped surface, and the contact switch (7) is extruded and fitted with the guide frame (14) via the wedge-shaped surface.

4. A stranding device for cable production according to claim 3, characterized in that: The elastic coefficient value of the first tension spring (15) is greater than the elastic coefficient value of the first spring (8).

5. A stranding device for cable production according to claim 4, characterized in that: The utility model further comprises a clamping block (16) symmetrically distributed along the turntable (10), the clamping block (16) being slidably connected to the turntable (10), the clamping block (16) being in contact with the adjacent slide bar (11), and the contact surface of the clamping block (16) being arranged in a V-shape, and a second spring (17) being fixedly connected between the clamping block (16) and the turntable (10).

6. A stranding device for cable production according to claim 5, characterized in that: The invention also includes an L-shaped fixing rod (18) corresponding to the slide rod (11), the L-shaped fixing rod (18) is slidably connected to the corresponding slide rod (11), one end of the L-shaped fixing rod (18) is in contact with the turntable (10), a second tension spring (19) is fixed between the L-shaped fixing rod (18) and the corresponding slide rod (11), the turntable (10) is provided with clamping holes symmetrically distributed along the turntable (10), and the L-shaped fixing rod (18) is moved and inserted into the corresponding clamping hole.

7. A stranding device for cable production according to claim 6, characterized in that: The invention also includes a magnetic guide frame (20), the magnetic guide frame (20) is slidably connected to the guide frame (6), one side of the magnetic guide frame (20) is set as a wedge-shaped surface, the guide frame (6) is slidably connected to a circumferentially distributed wire grabbing block (21), the wire grabbing block (21) is slidably connected to the magnetic guide frame (20), and the magnetic guide frame (20) is squeezed and matched with the wire grabbing block (21) through the wedge-shaped surface, the wire grabbing block (21) is provided with a groove (211), a circumferentially distributed third spring (22) is fixedly connected between the magnetic guide frame (20) and the guide frame (6), the guide frame (6) is fixedly connected to at least one electromagnet (23), the electromagnet (23) adsorbs the magnetic guide frame (20) by magnetic force, and the contact switch (7) is electrically connected to the electromagnet (23) through a control module.

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