Precious metal micro-filament rewinding machine

Abstract

The utility model provides a precious metal microfilament rewinding machine, a wire arranging frame unit is controlled by a driving mechanism and can be switched among an initial position, a first working position and a second working position, and when the wire arranging frame unit is located at the initial position, a guide wheel, closest to a finished product shaft in a take-up mechanism, in the wire arranging frame unit is far away from the finished product shaft; when in the first working position, the guide wheel corresponds to the left side or right side edge area of the finished shaft; when in the second working position, the guide wheel corresponds to the middle area of the finished product shaft, and the middle area of the finished product shaft is not wound at the moment; after the guide wheel is switched to the second working position, the position of the guide wheel can be adjusted by the driving mechanism along with rewinding of the wire on the middle area of the finished product shaft layer by layer, so that the distance from the axis of the guide wheel to the surface of the wire on the finished product shaft is always maintained at a preset value, and the preset value is that when the wire is in the second working position, the wire is continuously wound. The distance between the guide wheel axis and the surface of the finished shaft. The rewinding machine can improve the surface quality of the wire on the finished shaft.

Description

Technical Field

[0001] This utility model relates to a precious metal microfilament rewinding machine. Background Technology

[0002] Microfilaments typically refer to precious metal wires with a tension of less than 5g. The main structure of a precious metal microfilament rewinding machine consists of a machine housing, a wire feeding mechanism, a tension mechanism, a wire laying frame mechanism, a wire take-up mechanism, and a wire laying mechanism. The wire wound on the wire feeding servo in the wire feeding mechanism is led out by the rotation of the wire feeding servo and then rewound through the tension mechanism and the wire laying frame mechanism to the finished product shaft of the take-up mechanism. The finished product shaft can move left and right under the action of the wire laying mechanism.

[0003] Currently, the rewinding process is as follows: Before starting rewinding, to facilitate attaching the wire end to the side of the finished spool, the cable tray mechanism needs to be manually rotated to its initial position using the handle. After attaching, manually rotate the cable tray mechanism to the working position again using the handle, and then press the start button to begin rewinding the wire onto the finished spool. After rewinding, since the wire end also needs to be attached to the other side of the finished spool, the cable tray mechanism needs to be manually rotated to its initial position again using the handle.

[0004] During the entire rewinding process, the working position of the wire guide mechanism is crucial, directly affecting the surface quality of the finished wire shaft. The relative distance between the guide wheel closest to the finished shaft and its surface directly impacts the wire spacing and width. However, two improper operating situations can occur: 1) Rewinding has already begun, but due to operator negligence, the wire guide mechanism remains in its initial position; 2) The wire guide mechanism has not rotated to its proper working position. Both situations will lead to variations in the surface quality of the wire on the finished shaft, and may even result in defective products.

[0005] Precious metal microfilament rewinding machines are typically used to wind fine wires smaller than 40 micrometers. Due to the thinness and low tension of the wires, a cross-winding method is used to ensure flat winding, reduce wire fraying during transportation and wire clamping during use, and improve winding quality. In the cross-winding method, the closer the guide wheel closest to the finished product shaft in the winding frame mechanism is to the winding surface, the higher the accuracy of winding and the precision of the winding width. Therefore, to achieve optimal winding quality, the guide wheel should be as close to the winding surface as possible. There is an urgent need in the industry for a precious metal microfilament rewinding machine that allows the guide wheel to remain close to the winding surface at all times during winding. Utility Model Content

[0006] To address the problems existing in the prior art, this application proposes a precious metal microfilament rewinding machine to improve the surface quality of the finished spool wire.

[0007] To achieve the above objectives, this application proposes a precious metal microfilament rewinding machine, including a chassis and a wire feeding mechanism, a tensioning mechanism, a wire assembly frame mechanism, a wire take-up mechanism, and a wire assembly mechanism disposed on the chassis. The wire assembly frame mechanism includes a wire assembly frame unit, which includes at least one guide wheel. The wire assembly frame unit is controlled by a drive mechanism to switch between an initial position, a first working position, and a second working position. When the wire assembly frame unit is in the initial position, the guide wheel closest to the finished product shaft in the wire assembly frame unit is away from the finished product shaft. When the wire assembly frame unit is in the first working position, the guide wheel closest to the finished product shaft in the wire assembly frame unit corresponds to the left or right edge region of the finished product shaft. When the wire assembly frame unit... When in the second working position, the guide wheel closest to the finished product shaft in the cable tray unit corresponds to the middle area of ​​the finished product shaft, and the wire has not yet been wound around the middle area of ​​the finished product shaft. For the guide wheel closest to the finished product shaft in the cable tray unit, the initial position is higher than the first working position, and the first working position is higher than the second working position. After the cable tray unit switches to the second working position, as the wire is rewound layer by layer to the middle area of ​​the finished product shaft, the drive mechanism can adjust the position of the guide wheel closest to the finished product shaft in the cable tray mechanism, so that the distance from the axis of the guide wheel to the surface of the wire on the finished product shaft is always maintained at a preset value. This preset value is the distance between the axis of the guide wheel and the surface of the finished product shaft when in the second working position.

[0008] In some embodiments, the cable tray mechanism includes a plurality of supports spaced apart on the upper cover of the chassis. A first connecting shaft passes through all the supports in sequence and is rotatably connected to each support. The cable tray unit is mounted on the first connecting shaft. The driving mechanism includes a drive motor mounting plate fixed to the lower surface of the upper cover of the chassis. A drive motor is mounted on the drive motor mounting plate. A main synchronous pulley is fixed on the output shaft of the drive motor. The main synchronous pulley is connected to a driven synchronous pulley via a synchronous belt. The synchronous belt passes through a through hole in the upper cover. The driven synchronous pulley is fixedly connected to the first connecting shaft. When the drive motor is driven to operate, it can drive the first connecting shaft to rotate, thereby driving the cable tray unit to rotate.

[0009] In some embodiments, a mechanical limiting member is fixedly sleeved on the first connecting shaft. The mechanical limiting member is arc-shaped, and the support is provided with two limiting posts, which are used to cooperate with the mechanical limiting member to restrict the first connecting shaft from driving the cable tray unit to rotate to the initial position and the second working position, respectively.

[0010] In some embodiments, a sensing bracket is also fixedly provided on the first connecting shaft, and a sensing plate is provided on the sensing bracket. A sensing switch fixing bracket is provided on the upper cover of the chassis, and a sensing switch is provided on the sensing switch fixing bracket. The sensing switch works in conjunction with the sensing plate and is connected to the control unit. When the first connecting shaft drives the cable tray unit to rotate to the initial position, the sensing plate rotates to the sensing switch, and the sensing switch sends a signal to the control unit to control the drive motor to stop operating.

[0011] In some embodiments, a handle is provided at one end of the first connecting shaft, and the cable tray mechanism can be manually intervened to stop its rotation during rotation.

[0012] The beneficial effect of this solution is that the aforementioned precious metal microfilament rewinding machine, by setting a drive mechanism, enables the wire guide mechanism to switch between an initial position, a first working position, and a second working position. When the wire guide mechanism is in the initial position, the wire guide unit is raised to facilitate wire threading. When the wire guide unit is in the first working position, the rewinding machine can avoid the edges of the finished product shaft during the reset action and when running to the two edge areas of the finished product shaft, preventing mechanical interference. After switching to the second working position, as the wire is rewinded onto the finished product shaft, the drive mechanism can adjust the position of the guide wheel closest to the finished product shaft in the wire guide mechanism, so that the distance from the axis of the guide wheel to the surface of the wire on the finished product shaft is always maintained at a preset value. This preset value is the distance between the axis of the guide wheel and the surface of the finished product shaft in the second working position. Through this structural setting, the guide wheel closest to the finished product shaft in the wire guide mechanism can always be close to the surface of the wire on the finished product shaft, improving the surface quality of the wire on the finished product shaft. The precious metal microfilament rewinding machine involved in this application can also effectively avoid situations where, during purely manual operation, the wire guide mechanism is forgotten to be rotated to the working position or is not rotated to the correct position. Attached Figure Description

[0013] Figure 1 A schematic diagram of the wire-laying frame mechanism in the initial position of a precious metal microfilament rewinding machine is shown.

[0014] Figure 2 A schematic diagram of the wire-laying frame mechanism in the first working position of a precious metal microfilament rewinding machine is shown.

[0015] Figure 3 A schematic diagram of the wire-laying frame mechanism in the second working position of the precious metal microfilament rewinding machine is shown.

[0016] Figure 4The diagram shows the positional relationship between the guide wheel closest to the finished product shaft and the finished product shaft when the cable tray mechanism is in the first working position and the second working position.

[0017] Figure 5 A partial structural schematic diagram of the precious metal microfilament rewinding machine in the embodiment is shown.

[0018] Figure 6 It shows Figure 5 An enlarged schematic diagram of section M in the middle.

[0019] Figure 7 The diagram shows a schematic of the winding mechanism in the embodiment when it is in the second working position or after the second working position, and when it has begun to rewind the middle area of ​​the finished product shaft.

[0020] Figure 8 It shows Figure 7 This is a schematic diagram of the process of rewinding the next layer of wire in the current state.

[0021] Reference numerals: 1-Chassis, 101-Top cover, 2-Wire feeding mechanism, 201-Wire feeding mother wheel, 3-Tension mechanism, 4-Wire tray mechanism, 401-Support, 4011-Through hole, 4012-First splicing part, 4013-Second splicing part, 4014-Connector, 402-First connecting shaft, 403-Second connecting shaft, 404-Wire tray unit, 4041-Connecting rod, 4042-Guide wheel mounting plate, 404 3-Guide wheel, 405-Handle, 406-Mechanical limit component, 5-Wire take-up mechanism, 501-Finished product shaft, 6-Drive mechanism, 601-Drive motor mounting plate, 602-Drive motor, 603-Main synchronous belt pulley, 604-Synchronous belt, 605-Dieter synchronous belt pulley, 7-Induction bracket, 8-Induction switch mounting bracket, 9-Induction switch, A-Initial position, B-First working position, C-Second working position, S-Wire. Detailed Implementation

[0022] The specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0023] In the description of this application, it should be understood that the terms "first," "second," etc., are used to distinguish similar objects, rather than to describe or indicate a specific order or sequence. The terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] like Figures 1-6 As shown, the precious metal microfilament rewinding machine involved in this application includes a rewinding machine body, which includes a housing 1. The housing 1 is provided with a wire feeding mechanism 2, a tension mechanism 3, a wire laying frame mechanism 4, a wire take-up mechanism 5, and a wire laying mechanism. The wire S wound on the wire feeding mother wheel 201 in the wire feeding mechanism 2 is rotated out by the wire feeding mother wheel 201 and then rewound through the tension mechanism 3 and the wire laying frame mechanism 4 to the finished product shaft 501 of the take-up mechanism 5. The finished product shaft 501 can move left and right under the action of the wire laying mechanism. The above structure is basically the same as the structure of the precious metal microfilament rewinding machine in the prior art, and will not be described in detail here.

[0025] The cable tray mechanism 4 includes a plurality of supports 401 spaced apart on the upper cover plate 101 of the chassis 1. A first connecting shaft 402 passes through all the supports 401 in sequence and is rotatably connected to each support 401. One end of the first connecting shaft 402 is provided with a handle 405. By operating the handle 405, the first connecting shaft 402 can be rotated, and when the handle 405 is released, the first connecting shaft 402 can stay at the rotated position.

[0026] Specifically, each support 401 is provided with a through hole 4011. The upper part of the support 401 includes two splicing parts, referred to as the first splicing part 4012 and the second splicing part 4013 respectively. The two splicing parts are respectively connected to the base of the support 401. The gap between the two splicing parts is connected to the through hole 4011, so that the size of the through hole 4011 can be finely adjusted. Each splicing part is provided with a connecting hole. The two splicing parts can be connected together by the cooperation of the connector 4014 (e.g., screw and nut). By adjusting the locking degree of the connector 4014, the size of the gap between the two splicing parts can be adjusted, thereby finely adjusting the locking degree between the first connecting shaft 402 passing through the through hole 4011 and the through hole 4011, until the first connecting shaft 402 can be rotated by operating the handle 405, and when the handle 405 is released, the first connecting shaft 402 can stay at the rotated position.

[0027] A cable tray unit 404 is provided on the first connecting shaft 402. The cable tray unit 404 includes at least one guide wheel 4043. The cable tray unit 404 is controllable to switch between an initial position A, a first working position B, and a second working position C. When the cable tray unit 404 is in the initial position A, the guide wheel 4043 closest to the finished product shaft in the cable tray unit 404 is away from the finished product shaft 501. When the cable tray unit 404 is in the first working position B, the guide wheel 4043 closest to the finished product shaft in the cable tray unit 404 corresponds to the left or right edge area of ​​the finished product shaft 501. When the cable tray unit 404 is in the second working position C, the guide wheel 4043 closest to the finished product shaft in the cable tray unit 404 corresponds to the middle area of ​​the finished product shaft 501. At this time, the cable has not yet been wound in the middle area. For the guide wheel 4043 closest to the finished product shaft in the cable tray unit 404, the initial position A is higher than the first working position B, and the first working position B is higher than the second working position C.

[0028] A mechanical limiting member 406 is also fixedly sleeved on the first connecting shaft 402. The mechanical limiting member 406 is arc-shaped. The support 401 is provided with two limiting posts, which are used to cooperate with the mechanical limiting member 406 to restrict the first connecting shaft 402 from driving the cable tray unit 404 to the initial position A and the second working position C.

[0029] The precious metal microfilament rewinding machine may include multiple rewinding units, each of which includes a wire feeding mechanism 2, a tension mechanism 3, a wire laying frame mechanism 4, a wire take-up mechanism 5, and a wire laying mechanism. In this case, the wire laying frame mechanism 4 of each rewinding unit shares all structures except for the wire laying frame unit 404 itself; that is, multiple wire laying frame units 404 are spaced apart on the first connecting shaft 402, with each wire laying frame unit 404 corresponding to a specific rewinding unit. Two mechanical limiting members 406 can be fixedly sleeved on the first connecting shaft 402. Each mechanical limiting member 406 is arc-shaped, and limiting posts are respectively provided on two supports 401. One limiting post cooperates with one end of a mechanical limiting member 406 to restrict the first connecting shaft 402 from rotating the wire laying frame unit 404 to the initial position A. The other limiting post cooperates with the other end of the other mechanical limiting member 406 to restrict the first connecting shaft 402 from rotating the wire laying frame unit 404 to the second working position C.

[0030] The wire laying frame unit 404 includes a connecting rod 4041, one end of which is fixed to the first connecting shaft 402. When the precious metal microfilament rewinding machine includes multiple rewinding units, in order to improve the stability of the structure, the other end of the connecting rod 4041 of each wire laying frame unit 404 is fixed to the second connecting shaft 403. The second connecting shaft 403 is arranged parallel to the first connecting shaft 402. A guide wheel mounting plate 4042 is also fixed on the connecting rod 4041. At least one guide wheel 4043 is rotatably mounted on the guide wheel mounting plate 4042 for guiding the wire from the tension mechanism 3. Since one of the guide wheels 4043 in the wire laying frame unit 404 is as close as possible to the finished shaft 501 of the take-up mechanism 5, the surface quality of the wire on the finished shaft 501 can be improved as much as possible after the wire is rewound to the finished shaft 501 of the take-up mechanism 5.

[0031] The precious metal microfilament rewinding machine involved in this application is further provided with a drive mechanism 6, which is used to control the wire frame unit 404 in the wire frame mechanism 4 to switch between the initial position A, the first working position B, and the second working position C; after the guide wheel 4043 closest to the finished product shaft in the wire frame unit 404 is switched to the second working position C, as the wire is rewound layer by layer to the middle area of ​​the finished product shaft 501, the drive mechanism 6 can adjust the position of the guide wheel 4043 closest to the finished product shaft 501 in the wire frame mechanism 4, so that the distance from the axis of the guide wheel 4043 to the surface of the wire S on the finished product shaft 501 is always maintained at a preset value, which is the distance between the axis of the guide wheel 4043 and the surface of the finished product shaft 501 when in the second working position C.

[0032] Specifically, the drive mechanism 6 includes a drive motor mounting plate 601 fixed to the lower surface of the upper cover plate 101 of the chassis 1. A drive motor 602 is mounted on the drive motor mounting plate 601. A main synchronous pulley 603 is fixed on the output shaft of the drive motor 602. The main synchronous pulley 603 is connected to a driven synchronous pulley 605 via a synchronous belt 604. The synchronous belt 604 passes through a through hole provided on the upper cover plate 101. The driven synchronous pulley 605 is fixedly connected to the first connecting shaft 402. When the drive motor 602 is driven to operate, it can drive the first connecting shaft 402 to rotate, thereby driving the cable tray unit 404 to rotate.

[0033] After the guide wheel 4043 closest to the finished product shaft in the cable tray unit 404 is switched to the second working position C, as the wire is wound layer by layer onto the middle area of ​​the finished product shaft 501, the drive mechanism 6 can adjust the position of the guide wheel 4043 closest to the finished product shaft 501 in the cable tray mechanism 4, so that the distance from the axis of the guide wheel 4043 to the surface of the wire S on the finished product shaft 501 is always maintained at a preset value. This preset value is the distance between the axis of the guide wheel 4043 and the surface of the finished product shaft 501 when in the second working position C. The specific implementation process is as follows:

[0034] like Figure 7 As shown, a represents the distance between the axis of the first connecting shaft 402 and the axis of the guide wheel 4043 closest to the finished product shaft 501 in a vertical plane (the vertical plane is perpendicular to the first connecting shaft 402); b represents the distance between the axis of the finished product shaft 501 and the axis of the first connecting shaft 402 in the vertical plane. Based on the structure of the precious metal microfilament rewinding machine, a and b are known quantities.

[0035] c1 represents the distance between the axis of the guide wheel 4043 closest to the finished product shaft 501 and the axis of the finished product shaft 501 when the cable tray mechanism is in the second working position C or after the second working position C and has begun to rewind the middle area of ​​the finished product shaft 501.

[0036] When the cable tray mechanism is in the second working position C, the distance between the axis of the guide wheel 4043 closest to the finished product shaft 501 in the cable tray mechanism 4 and the surface of the finished product shaft 501 is the preset value, which is a known quantity. The diameter of the finished product shaft 501 is also a known quantity. Therefore, c1 is a known quantity.

[0037] When the cable tray mechanism begins to rewind the middle area of ​​the finished product shaft 501 after the second working position C, the distance between the axis of the guide wheel 4043 closest to the finished product shaft 501 in the cable tray mechanism 4 and the axis of the finished product shaft 501 includes: the distance from the axis of the guide wheel 4043 closest to the finished product shaft 501 in the cable tray mechanism 4 to the surface of the wire S on the finished product shaft 501, the thickness corresponding to the number of layers of wire S, and the radius of the finished product shaft 501; wherein the distance from the axis of the guide wheel 4043 closest to the finished product shaft 501 in the cable tray mechanism 4 to the surface of the wire S on the finished product shaft 501 is the preset value, which is a known quantity; the diameter of wire S is known, therefore the thickness corresponding to the number of layers of wire S is a known quantity; the diameter of the finished product shaft 501 is also a known quantity, therefore c1 is a known quantity.

[0038] In the vertical plane, the line connecting the center of the first connecting shaft 402 and the center of the guide wheel 4043 closest to the finished product shaft 501 in the cable tray mechanism 4 is denoted as the first connecting line, and the line connecting the center of the finished product shaft 501 and the center of the first connecting shaft 402 is denoted as the second connecting line. The included angle between the first connecting line and the second connecting line is denoted as θ1, and Cosθ1=(a 2 +b 2 -c1 2 θ1 can be obtained by using the inverse cosine function θ / 2ab.

[0039] like Figure 8 As shown, when in Figure 7 In this state, when rewinding the next layer of wire, the distance between the axis of the guide wheel 4043 closest to the finished product shaft 501 in the wire guide mechanism 4 and the axis of the finished product shaft 501 is denoted as c2, c2 = c1 + d, where d is the diameter of the wire S, which is a known quantity. At this time, θ1 will increase, denoted as θ2, Cosθ2 = (a 2 +b 2 -c2 2 θ2 can be obtained by using the inverse cosine function.

[0040] Then, by subtracting θ1 from θ2, we obtain the difference in angles, which is the value from... Figure 7 transitioning to Figure 8 In this state, the driving mechanism 6 needs to drive the cable tray unit 404 to lift to a certain angle. As the thickness of the cable on the finished shaft 501 increases, the cable tray unit 404 is continuously raised to the corresponding angle position, so that the distance between the axis of the guide wheel 4043 closest to the finished shaft 501 in the cable tray mechanism 4 and the surface of the wire S on the finished shaft 501 is always maintained at a preset value, so that the cable quality is always at the best.

[0041] A sensing bracket 7 is fixedly mounted on the first connecting shaft 402, and a sensing plate is mounted on the sensing bracket 7. A sensing switch fixing bracket 8 is mounted on the upper cover plate 101 of the chassis 1, and a sensing switch 9 is mounted on the sensing switch fixing bracket 8. The sensing switch 9 works in conjunction with the sensing plate and is connected to the control unit. When the first connecting shaft 402 drives the cable tray unit 404 to rotate to the initial position A, the sensing plate rotates to the sensing switch 9, and the sensing switch 9 sends a signal to the control unit to control the drive motor 602 to stop. Through the above design, electronic limit is achieved. When the electronic limit fails, mechanical limit can still be achieved through the cooperation of the mechanical limit component 406 and the limit post, fully ensuring that the cable tray unit 404 switches between the initial position A and the second working position C.

[0042] In practical use, before rewinding begins, the cable tray unit 404 is in its initial position A, which is a convenient position for threading the wire. After the first end of the wire is attached to the side of the finished shaft 501, the start button is pressed, driving the cable tray unit 404 to the first working position B, and then rewinding the wire in the edge area on one side of the finished shaft 501; then, the cable tray unit 404 is driven to the second working position C, and rewinding the wire in the middle area of ​​the finished shaft 501. During this process, as the thickness of the wire on the finished shaft 501 increases, the drive mechanism 6 needs to drive the cable tray unit 404 to continuously rise to the corresponding angle position, so that the distance from the axis of the guide wheel 4043 closest to the finished shaft 501 in the cable tray mechanism 4 to the surface of the wire S on the finished shaft 501 is always maintained at a preset value, thus ensuring that the wire quality is always optimal. After the middle area of ​​the finished shaft 501 is rewound, the cable tray unit 404 is driven to the first working position B, and then the wire is rewound in the edge area on the other side of the finished shaft 501.

[0043] To avoid special circumstances, the cable tray unit 404 can be manually intervened to stop its operation during rotation.

[0044] The precious metal microfilament rewinding machine of this application, through the setting of a drive mechanism, enables the wire-laying frame mechanism to switch between an initial position, a first working position, and a second working position. After switching to the second working position, as the wire is rewound onto the finished product shaft, the drive mechanism can adjust the position of the guide wheel closest to the finished product shaft in the wire-laying frame mechanism, ensuring that the distance from the axis of this guide wheel to the surface of the wire on the finished product shaft remains at a preset value. This preset value is the distance between the axis of the guide wheel and the surface of the finished product shaft in the second working position. This structural design ensures that the guide wheel closest to the finished product shaft in the wire-laying frame mechanism is always close to the surface of the wire on the finished product shaft, improving the surface quality of the wire on the finished product shaft. The precious metal microfilament rewinding machine of this application also effectively avoids the situation where, during purely manual operation, the wire-laying frame mechanism is forgotten to be rotated to the working position or is not rotated to the correct position.

[0045] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A precious metal microfilament rewinding machine, comprising a chassis and a wire feeding mechanism, a tensioning mechanism, a wire laying frame mechanism, a wire take-up mechanism, and a wire laying mechanism disposed on the chassis, wherein the wire laying frame mechanism includes a wire laying frame unit, and the wire laying frame unit includes at least one guide wheel, characterized in that: The cable tray unit is controlled by a drive mechanism to switch between an initial position, a first working position, and a second working position. When the cable tray unit is in the initial position, the guide wheel closest to the finished product shaft in the take-up mechanism is away from the finished product shaft. When the cable tray unit is in the first working position, the guide wheel closest to the finished product shaft corresponds to the left or right edge area of ​​the finished product shaft. When the cable tray unit is in the second working position, the guide wheel closest to the finished product shaft corresponds to the middle area of ​​the finished product shaft, at which point the middle area of ​​the finished product shaft has not yet been... The wire is wound in the intermediate area; for the guide wheel closest to the finished product shaft in the wire frame unit, the initial position is higher than the first working position, and the first working position is higher than the second working position; after the guide wheel closest to the finished product shaft in the wire frame unit is switched to the second working position, as the wire is rewound layer by layer to the middle area of ​​the finished product shaft, the drive mechanism can adjust the position of the guide wheel closest to the finished product shaft in the wire frame mechanism, so that the distance from the axis of the guide wheel to the surface of the wire on the finished product shaft is always maintained at a preset value, which is the distance between the axis of the guide wheel and the surface of the finished product shaft when in the second working position.

2. The precious metal microfilament rewinding machine according to claim 1, characterized in that: The cable tray mechanism includes multiple supports spaced apart on the upper cover of the chassis. A first connecting shaft passes through all the supports in sequence and is rotatably connected to each support. The cable tray unit is mounted on the first connecting shaft. The drive mechanism includes a drive motor mounting plate fixed to the lower surface of the upper cover of the chassis. A drive motor is mounted on the drive motor mounting plate. A main synchronous pulley is fixed on the output shaft of the drive motor. The main synchronous pulley is connected to a driven synchronous pulley via a synchronous belt. The synchronous belt passes through a through hole in the upper cover. The driven synchronous pulley is fixedly connected to the first connecting shaft. When the drive motor is driven to operate, it can drive the first connecting shaft to rotate, thereby driving the cable tray unit to rotate.

3. The precious metal microfilament rewinding machine according to claim 2, characterized in that: A mechanical limiting component is fixedly sleeved on the first connecting shaft. The mechanical limiting component is arc-shaped. The support is provided with two limiting posts, which are used to cooperate with the mechanical limiting component to restrict the first connecting shaft from driving the cable tray unit to rotate to the initial position and the second working position, respectively.

4. The precious metal microfilament rewinding machine according to claim 2, characterized in that: A sensing bracket is also fixedly mounted on the first connecting shaft, and a sensing plate is mounted on the sensing bracket. A sensing switch fixing bracket is mounted on the upper cover of the chassis, and a sensing switch is mounted on the sensing switch fixing bracket. The sensing switch works in conjunction with the sensing plate and is connected to the control unit. When the first connecting shaft drives the cable tray unit to rotate to the initial position, the sensing plate rotates to the sensing switch, and the sensing switch sends a signal to the control unit to control the drive motor to stop.

5. The precious metal microfilament rewinding machine according to claim 2, characterized in that: One end of the first connecting shaft is provided with a handle, and the cable tray mechanism can be manually intervened to stop its rotation during the rotation process.

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