Cable production wire guide device and transmission method thereof

Abstract

The application relates to the technical field of wire transmission, in particular to a wire transmission device for cable production and a transmission method thereof. The wire transmission device for cable production and the transmission method thereof comprise a base, the top of the base is fixedly connected with a support frame, the support frame is fixedly connected with a fixed pipe, the fixed pipe is connected with a transmission mechanism and a guide mechanism respectively, and the guide mechanism is connected with a driving mechanism. The wire transmission device for cable production and the transmission method thereof can transmit the wire at a close distance, shorten the distance between the transmission structure and the wire roll, and make the transmission device perform circumferential motion, so that the angle change when the wire is separated from the wire roll is adapted. The circumferential motion can apply additional force to the wire separated from the wire roll, the wire is prevented from being stuck, and the wire is prevented from being deformed due to being pulled.

Description

Technical Field

[0001] This invention relates to the field of conductor transmission technology, specifically to a conductor transmission device and transmission method for cable production. Background Technology

[0002] Cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, and so on. They are all composed of single or multiple strands of conductors and insulation layers, used to connect circuits, electrical appliances, etc. The production process of cables requires the use of multiple strands of conductors, which are generally pulled out of coils using a pulling device.

[0003] Currently, in the transmission of conductors, the distance between the power source and the conductor reel is relatively large. When the power source generates power, it pulls on one end of the conductor, causing it to detach from the reel. During this process, the middle section of the conductor is obstructed or clamped by other parts and cannot quickly detach from the reel, resulting in a temporary "jamming" phenomenon. At this time, the middle section of the conductor continues to be pulled, causing some deformation, ultimately resulting in uneven thickness of the entire conductor. Furthermore, due to the excessive distance of the power source, the conductor may be excessively pulled over a long distance, resulting in significant deformation and affecting the quality of the cable. In view of this, we propose a conductor transmission device and its transmission method for cable production. Summary of the Invention

[0004] The purpose of this invention is to provide a wire transmission device and transmission method for cable production, which solves the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A conductor transmission device for cable production includes a base, a support frame fixedly connected to the top of the base, a fixed pipe fixedly connected to the support frame, a transmission mechanism and a guide mechanism respectively connected to the fixed pipe, and a drive mechanism connected to the guide mechanism.

[0007] The guiding mechanism includes a support column, one end of which is fixedly connected to the surface of the base, and the other end of which is fixedly connected to a guide ring. A spiral groove is formed on the surface of the guide ring, and a guide plate is slidably connected to the inner wall of the spiral groove.

[0008] The transmission mechanism includes a retraction device, which is connected to a guide plate, and a conveying device is connected to the retraction device.

[0009] Preferably, the transmission mechanism further includes a fixed plate, one end of which is fixedly connected to the inner wall of the guide ring, and a first sleeve is rotatably connected to the inner wall of the fixed plate. The inner wall of the first sleeve is rotatably connected to the surface of the fixed tube, and a rotating seat is fixedly connected to the surface of the first sleeve. The rotating seat is connected to the retraction device.

[0010] Preferably, the retraction device includes a fixed rod, both ends of which are fixedly connected to the inner wall of the rotating seat. A retraction plate is slidably connected to the surface of the fixed rod, and one side of the retraction plate is elastically connected to the inner wall of the rotating seat by a spring.

[0011] Preferably, a guide rod is fixedly connected to the inner wall of the retractable plate, a trapezoidal plate is slidably connected to the surface of the guide rod, one side of the trapezoidal plate is elastically connected to the inner wall of the retractable plate by a spring, the other side of the trapezoidal plate passes through the retractable plate and is provided with an inclined surface, and a pull rope is fixedly connected to the surface of the trapezoidal plate.

[0012] Multiple triangular plates are fixedly connected to the inner wall of the rotating seat. The multiple triangular plates are distributed at equal intervals in a straight line, and the surface of the recessed plate is in contact with the surface of the triangular plates.

[0013] Preferably, the conveying device includes a connecting seat, one side of which is fixedly connected to the surface of the retracting plate, and the other side of which is fixedly connected to a mounting plate. A conveying motor is fixedly connected to the surface of the mounting plate, and a drive wheel is fixedly connected to the output end of the conveying motor.

[0014] Preferably, a first bracket and a second bracket are fixedly connected to the surface of the connecting seat, a driven wheel is rotatably connected to the surface of the first bracket, and a guide wheel is rotatably connected to the surface of the second bracket.

[0015] Preferably, one end of the guide plate is fixedly connected to an inclined plate, the surface of the inclined plate contacts a guide block, one end of the guide block is fixedly connected to the surface of the retractable plate, a connecting rod is slidably connected to the inner wall of the guide plate, a connecting frame is fixedly connected to the surface of the connecting rod, the inner wall of the connecting frame is elastically connected to one side of the guide plate by a spring, and one end of the connecting rod is fixedly connected to a second sleeve, the inner wall of the second sleeve is rotatably connected to the surface of the fixed tube.

[0016] Preferably, the driving mechanism includes a fixed base, one end of which is fixedly connected to the inner wall of the guide ring, and the other end of which is fixedly connected to a drive motor, and the output end of the drive motor is fixedly connected to a drive rod.

[0017] Preferably, a full gear and a residual gear are fixedly connected to the surface of the drive rod, a transmission gear meshes with the surface of the full gear, the inner wall of the transmission gear is fixedly connected to the surface of the first sleeve, a reduction gear meshes with the surface of the residual gear, and the inner wall of the reduction gear is fixedly connected to the surface of the second sleeve.

[0018] A method for driving a conductor in cable production, employing any of the above-described conductor driving devices, includes the following steps:

[0019] Step 1: Drive the wire to move using a conveyor device, so that the wire gradually detaches from the wire roll.

[0020] Step two: The drive mechanism provides power to the transmission mechanism and the guide mechanism, causing the conveying device to move around a circle, thereby causing the angle of the conveying device to change synchronously with the angle at which the guide is separated from the coil.

[0021] Step 3: The guide plate in the transmission mechanism slides along the spiral groove, causing the distance between the guide plate and the fixed tube to continuously decrease. The guide plate drives the retraction device to operate, which in turn drives the conveying device to retract, thereby reducing the distance between the conveying device and the fixed tube to adapt to changes in the diameter of the wire coil.

[0022] By means of the above technical solution, the present invention provides a conductor transmission device and transmission method for cable production, which has at least the following beneficial effects:

[0023] (1) The cable production conductor transmission device and its transmission method can transmit the conductor at close range by setting up a transmission device, shortening the distance between the transmission structure and the conductor roll. The transmission device can perform circular motion, thereby adapting to the angle change when the conductor leaves the conductor roll. The circular motion can apply additional force to the conductor to leave the wire roll, eliminating the phenomenon of the conductor getting stuck and avoiding the conductor being stretched and deformed.

[0024] (2) The cable production wire transmission device and its transmission method can guide the retraction device by setting a guide mechanism, so that the retraction device retracts at a uniform speed, thereby automatically adjusting the distance between the transmission device and the fixed tube to adapt to the diameter change of the wire roll, so that the transmission device always keeps close to the point of separation of the wire and the wire roll, thereby avoiding excessive pulling. Attached Figure Description

[0025] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application:

[0026] Figure 1 This is a front view of the overall structure of the present invention;

[0027] Figure 2This is a schematic diagram of the rear side of the overall structure in this invention;

[0028] Figure 3 This is a schematic diagram of some structures in the present invention;

[0029] Figure 4 This is a schematic diagram of the transmission mechanism in this invention;

[0030] Figure 5 This is a schematic diagram of the driving mechanism in this invention;

[0031] Figure 6 This is a schematic diagram of the guiding mechanism in this invention;

[0032] Figure 7 This is a schematic diagram of the guide block in this invention;

[0033] Figure 8 This is a schematic diagram of the triangular plate in this invention;

[0034] Figure 9 This is a schematic diagram of the guide rod in this invention;

[0035] Figure 10 This is a schematic diagram of the conveying device in this invention.

[0036] In the diagram: 1. Base; 2. Support frame; 3. Fixed tube; 4. Transmission mechanism; 41. Fixed plate; 42. First sleeve; 43. Rotating seat; 44. Retraction device; 441. Fixed rod; 442. Retraction plate; 443. Triangular plate; 444. Trapezoidal plate; 445. Guide rod; 446. Pull rope; 45. Conveying device; 451. Connecting seat; 452. Mounting plate; 453. Conveying motor; 454. Drive wheel; 455. First... 1. Support bracket; 456. Driven wheel; 457. Second support bracket; 458. Guide wheel; 5. Guide mechanism; 51. Support column; 52. Guide ring; 53. Guide plate; 54. Inclined plate; 55. Guide block; 56. Connecting frame; 57. Connecting rod; 58. Second sleeve; 6. Drive mechanism; 61. Fixed seat; 62. Drive motor; 63. Drive rod; 64. Full gear; 65. Transmission gear; 66. Residual gear; 67. Reduction gear. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Firstly, please refer to Figures 1-10This invention provides a conductor transmission device for cable production, comprising a base 1, a support frame 2 fixedly connected to the top of the base 1, and a fixed tube 3 fixedly connected to the support frame 2. The fixed tube 3 is hollow, allowing the conductor to pass through, and both ends of the fixed tube 3 are rounded to prevent scratching the guide. A transmission mechanism 4 and a guide mechanism 5 are respectively connected to the fixed tube 3, and a drive mechanism 6 is connected to the guide mechanism 5. The drive mechanism 6 is used for the operation of the transmission mechanism 4 and the guide mechanism 5.

[0039] In this embodiment, the transmission mechanism 4 includes a fixed plate 41. A first sleeve 42 is rotatably connected to the inner wall of the fixed plate 41. The inner wall of the first sleeve 42 is rotatably connected to the surface of the fixed tube 3. One end of the fixed plate 41 is fixed to the guide mechanism 5 to improve the stability of the first sleeve 42. A rotating seat 43 is fixedly connected to the surface of the first sleeve 42. A retraction device 44 is provided on the rotating seat 43. The retraction device 44 is connected to the guide mechanism 5 and a conveying device 45 is connected to the retraction device 44. The conveying device 45 is used to convey the wire. When the rotating seat 43 rotates, the conveying device 45 can perform circumferential motion to adapt to changes in the angle of the wire on the wire coil. Through the cooperation of the guide mechanism 5 and the retraction device 44, the distance between the conveying device 45 and the fixed tube 3 can be automatically adjusted to adapt to changes in the diameter of the wire coil.

[0040] In this embodiment, the retraction device 44 includes a fixed rod 441, both ends of which are fixedly connected to the inner wall of the rotating seat 43. A retraction plate 442 is slidably connected to the surface of the fixed rod 441. One side of the retraction plate 442 is elastically connected to the inner wall of the rotating seat 43 via a spring. The spring is sleeved outside the fixed rod 441. The fixed rod 441 can limit the spring and the retraction plate 442, improving the stability of the structure. A guide rod 445 is fixedly connected to the inner wall of the retraction plate 442. A trapezoidal plate 444 is slidably connected to the surface of the guide rod 445. One side of the trapezoidal plate 444 is elastically connected to the inner wall of the retraction plate 442 via a spring. The other side of the trapezoidal plate 444 penetrates the retraction plate 442 and is provided with an inclined surface. Multiple triangular plates 443 are fixedly connected to the inner wall of the rotating seat 43. The multiple triangular plates 443 are distributed at equal intervals in a straight line. The inclined surface on the retraction plate 442 contacts the inclined surface on the triangular plates 443. The inclined plane can change the direction of motion transmission, so that when the retractable plate 442 moves upward, the trapezoidal plate 444 can automatically retract into the retractable plate 442 under the action of force, thereby achieving the purpose of automatic relocation. When the trapezoidal plate 444 enters between the two triangular plates 443, it will automatically extend under the elastic force of the spring, thereby locking between the two triangular plates 443, realizing the limitation of the retractable plate 442, and achieving the purpose of changing the distance between the retractable plate 442 and the fixed tube 3.

[0041] Furthermore, a pull rope 446 is fixedly connected to the surface of the trapezoidal plate 444. There are two trapezoidal plates 444, symmetrically distributed about the axis of the recessed plate 442 to improve the locking and limiting effect. Both ends of the pull rope 446 pass through the guide rod 445 and are fixedly connected to the two trapezoidal plates 444. The middle part of the pull rope 446 passes through the recessed plate 442 and extends to the outside of the recessed plate 442, facilitating the resetting of the two recessed plates 442.

[0042] In this embodiment, the conveying device 45 includes a connecting seat 451. One side of the connecting seat 451 is fixedly connected to the surface of the retracting plate 442, so that the conveying device 45 can move synchronously when the retracting plate 442 moves. The other side of the connecting seat 451 is fixedly connected to a mounting plate 452. A conveying motor 453 is fixedly connected to the surface of the mounting plate 452. A drive wheel 454 is fixedly connected to the output end of the conveying motor 453. The drive wheel 454 is used to convey the wire. A first bracket 455 and a second bracket 457 are fixedly connected to the surface of the connecting seat 451. A driven wheel 456 is rotatably connected to the surface of the first bracket 455. The driven wheel 456 is symmetrically arranged with the drive wheel 454 and is used to clamp and limit the wire. A guide wheel 458 is rotatably connected to the surface of the second bracket 457. The guide wheel 458 is located to the upper left of the drive wheel 454 and is used to guide the wire to avoid contact with other structures and wear during the wire's movement.

[0043] In this embodiment, the guiding mechanism 5 includes two support columns 51, which are symmetrically arranged about the axis of the base 1. One end of each support column 51 is fixedly connected to the surface of the base 1, and the other end of each support column 51 is fixedly connected to a guide ring 52. The guide ring 52 is coaxial with the fixed tube 3 and is sleeved on the outside of the fixed tube 3. A spiral groove is formed on the surface of the guide ring 52, and a guide plate 53 is slidably connected to the inner wall of the spiral groove. When the guide plate 53 slides along the spiral groove, it can change the distance between itself and the fixed tube 3, thereby changing the distance between the wire and the fixed tube 3 to adapt to changes in the diameter of the wire coil. One end of the guide plate 53 is fixedly connected to an inclined plate 54, and the surface of the inclined plate 54 contacts a guide block 55. One end of the guide block 55 is fixedly connected to the surface of the retractable plate 442. When the guide block 55 contacts the inclined plate 54, it can move upward with the curvature of the inclined plate 54, and drive the retractable plate 442 to move upward. A connecting rod 57 is slidably connected to the inner wall of the guide plate 53. A connecting frame 56 is fixedly connected to the surface of the connecting rod 57. The inner wall of the connecting frame 56 is elastically connected to one side of the guide plate 53 by a spring. A second sleeve 58 is fixedly connected to one end of the connecting rod 57, allowing it to rotate with the rotation of the second sleeve 58. The inner wall of the second sleeve 58 is rotatably connected to the surface of the fixed tube 3. Notably, one end of the fixed plate 41 is fixedly connected to the inner wall of the guide ring 52 to improve its stability.

[0044] In this embodiment, the drive mechanism 6 includes a fixed base 61. One end of the fixed base 61 is fixedly connected to the inner wall of the guide ring 52, and the other end of the fixed base 61 is fixedly connected to a drive motor 62. The output end of the drive motor 62 is fixedly connected to a drive rod 63. A full gear 64 and a residual gear 66 are fixedly connected to the surface of the drive rod 63, respectively. The diameter of the residual gear 66 is smaller than the diameter of the full gear 64. A transmission gear 65 meshes with the surface of the full gear 64. The inner wall of the transmission gear 65 is fixedly connected to the surface of the first sleeve 42. A reduction gear 67 meshes with the surface of the residual gear 66. The inner wall of the reduction gear 67 is fixedly connected to the surface of the second sleeve 58. The diameter of the reduction gear 67 is larger than the diameter of the transmission gear 65, so that when the drive rod 63 rotates, the rotational speed of the first sleeve 42 is much smaller than the rotational speed of the second sleeve 58. This makes the rotational speed of the conveying device 45 much larger than its retraction speed, in order to adapt to the ratio of the number of wire coils to the diameter.

[0045] Secondly, a method for driving a conductor in cable production, employing any of the aforementioned conductor driving devices for cable production, includes the following steps:

[0046] Step 1: Drive the wire to move through the conveyor 45, so that the wire gradually detaches from the wire roll.

[0047] Specifically, the wire coil is placed on the external platform, positioned to the right of the guide ring 52, with its height roughly the same as the guide ring 52. One end of the wire is then passed between the drive wheel 454 and the driven wheel 456, pulled out from the right side of the guide wheel 458, and finally passed from right to left through the fixed tube 3 and connected to the external cable production device. Subsequently, the conveyor motor 453 and the drive motor 62 are started. The conveyor motor 453 conveys the wire, causing it to detach from the conductive coil at a uniform speed.

[0048] Step 2: The drive mechanism 6 provides power to the transmission mechanism 4 and the guide mechanism 5, so that the conveying device 45 moves around a circle, thereby causing the angle of the conveying device 45 to change synchronously with the angle at which the guide is separated from the coil.

[0049] Specifically, the output end of the drive motor 62 drives the drive rod 63 to rotate, and the drive rod 63 simultaneously drives the residual gear 66 and the full gear 64 fixedly connected thereto to rotate. The full gear 64 drives the transmission gear 65 to rotate synchronously through meshing. The transmission gear 65 drives the rotating seat 43 to rotate synchronously through the first sleeve 42. The rotating seat 43 drives the retracting plate 442 to rotate through the fixed rod 441, thereby driving the conveying device 45 to rotate, so that the angle of the conveying device 45 changes synchronously with the angle of the wire.

[0050] Step 3: The guide plate 53 in the transmission mechanism 4 slides along the spiral groove, so that the distance between the guide plate 53 and the fixed tube 3 is continuously reduced. The guide plate 53 drives the retraction device 44 to run, so that the retraction device 44 drives the conveying device 45 to retract, thereby reducing the distance between the conveying device 45 and the fixed tube 3 to adapt to the change in the diameter of the wire coil.

[0051] Specifically, at the same time, the residual gear 66 rotates once to facilitate the engagement of the reduction gear 67. The reduction gear 67 drives the connecting rod 57 to rotate through the second sleeve 58, which in turn drives the guide plate 53 to slide inside the spiral groove. When the guide plate 53 slides along the spiral groove, it can change the distance between itself and the fixed tube 3. When the retractable plate 442 rotates, it can synchronously drive the guide block 55 to rotate. During the movement of the guide block 55, it will contact the inclined plate 54 and move with the change of the angle of the inclined plate 54. The guide block 55 drives the retractable plate 442 to move along the axis of the fixed rod 441, and synchronously drives the trapezoidal plate 444 on it to move. The trapezoidal plate 444 moves along the inclined surface on the triangular plate 443 and automatically retracts into the retractable plate 442 under the action of force, thereby achieving the purpose of automatic relocation. When the trapezoidal plate 444 enters between the two triangular plates 443, it will automatically extend under the elastic force of the spring, thereby locking between the two triangular plates 443 and realizing the limitation of the retractable plate 442.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conductor transmission device for cable production, comprising a base (1), characterized in that, A support frame (2) is fixedly connected to the top of the base (1), and a fixed tube (3) is fixedly connected to the support frame (2). A transmission mechanism (4) and a guide mechanism (5) are respectively connected to the fixed tube (3), and a drive mechanism (6) is connected to the guide mechanism (5). The guiding mechanism (5) includes a support column (51), one end of which is fixedly connected to the surface of the base (1), and the other end of which is fixedly connected to a guide ring (52). A spiral groove is provided on the surface of the guide ring (52), and a guide plate (53) is slidably connected to the inner wall of the spiral groove. The transmission mechanism (4) includes a retraction device (44), which is connected to a guide plate (53), and a conveying device (45) is connected to the retraction device (44); The transmission mechanism (4) further includes a fixing plate (41), one end of which is fixedly connected to the inner wall of the guide ring (52). A first sleeve (42) is rotatably connected to the inner wall of the fixing plate (41). The inner wall of the first sleeve (42) is rotatably connected to the surface of the fixing tube (3). A rotating seat (43) is fixedly connected to the surface of the first sleeve (42). The rotating seat (43) is connected to the retraction device (44). The retraction device (44) includes a fixed rod (441), both ends of which are fixedly connected to the inner wall of the rotating seat (43). A retraction plate (442) is slidably connected to the surface of the fixed rod (441), and one side of the retraction plate (442) is elastically connected to the inner wall of the rotating seat (43) by a spring. A guide rod (445) is fixedly connected to the inner wall of the retractable plate (442). A trapezoidal plate (444) is slidably connected to the surface of the guide rod (445). One side of the trapezoidal plate (444) is elastically connected to the inner wall of the retractable plate (442) by a spring. The other side of the trapezoidal plate (444) passes through the retractable plate (442) and is provided with an inclined surface. A pull rope (446) is fixedly connected to the surface of the trapezoidal plate (444). Multiple triangular plates (443) are fixedly connected to the inner wall of the rotating seat (43). The multiple triangular plates (443) are distributed at equal distances in a straight line. The surface of the recessed plate (442) is in contact with the surface of the triangular plates (443). One end of the guide plate (53) is fixedly connected to an inclined plate (54), the surface of the inclined plate (54) is in contact with a guide block (55), one end of the guide block (55) is fixedly connected to the surface of the retractable plate (442), a connecting rod (57) is slidably connected to the inner wall of the guide plate (53), a connecting frame (56) is fixedly connected to the surface of the connecting rod (57), the inner wall of the connecting frame (56) is elastically connected to one side of the guide plate (53) by a spring, one end of the connecting rod (57) is fixedly connected to a second sleeve (58), and the inner wall of the second sleeve (58) is rotatably connected to the surface of the fixed tube (3).

2. The cable production conductor transmission device according to claim 1, characterized in that, The conveying device (45) includes a connecting seat (451), one side of which is fixedly connected to the surface of the retracting plate (442), and the other side of which is fixedly connected to a mounting plate (452). A conveying motor (453) is fixedly connected to the surface of the mounting plate (452), and a drive wheel (454) is fixedly connected to the output end of the conveying motor (453).

3. The cable production conductor transmission device according to claim 2, characterized in that, The surface of the connecting seat (451) is fixedly connected to a first bracket (455) and a second bracket (457). The surface of the first bracket (455) is rotatably connected to a passive wheel (456), and the surface of the second bracket (457) is rotatably connected to a guide wheel (458).

4. The cable production conductor transmission device according to claim 1, characterized in that, The drive mechanism (6) includes a fixed base (61), one end of which is fixedly connected to the inner wall of the guide ring (52), and the other end of which is fixedly connected to a drive motor (62). The output end of the drive motor (62) is fixedly connected to a drive rod (63).

5. The cable production conductor transmission device according to claim 4, characterized in that, The surface of the drive rod (63) is fixedly connected to a full gear (64) and a residual gear (66). The surface of the full gear (64) is meshed with a transmission gear (65). The inner wall of the transmission gear (65) is fixedly connected to the surface of the first sleeve (42). The surface of the residual gear (66) is meshed with a reduction gear (67). The inner wall of the reduction gear (67) is fixedly connected to the surface of the second sleeve (58).

6. A method for driving a conductor in cable production, employing the conductor driving device for cable production as described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1: Drive the wire to move through the conveying device (45) so that the wire gradually detaches from the wire roll; Step 2: The drive mechanism (6) provides power to the operation of the transmission mechanism (4) and the guide mechanism (5), so that the conveying device (45) moves around a circle, thereby causing the angle of the conveying device (45) to change synchronously with the angle of the guide leaving the wire coil. Step 3: The guide plate (53) in the transmission mechanism (4) slides along the spiral groove, so that the distance between the guide plate (53) and the fixed tube (3) is continuously reduced. The guide plate (53) drives the retraction device (44) to run, so that the retraction device (44) drives the conveying device (45) to retract, thereby reducing the distance between the conveying device (45) and the fixed tube (3) to adapt to the change in the diameter of the wire coil.

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