Pay-off device for building electrical engineering and pay-off method of pay-off device

Abstract

The invention provides a pay-off device for building electrical engineering and a pay-off method thereof, the pay-off device for building electrical engineering comprises a support, a pay-off wheel is rotatably connected to a support body of the support, and a cable guide mechanism is connected to one side of the support body of the support; the cable guiding mechanism comprises a supporting frame connected to the upper surface of one side of the support, a reciprocating moving assembly connected to the supporting frame and a guiding assembly connected with the reciprocating moving assembly. The guiding assembly comprises a translation frame connected with the execution end of the reciprocating moving assembly, a rotating frame rotationally connected with a frame body of the translation frame and two guiding wheels rotationally connected into a frame body of the rotating frame, and the two guiding wheels are sequentially arranged from top to bottom. The cable is clamped and guided through the guiding assembly of the cable guiding mechanism, the reciprocating motion of the reciprocating motion assembly is matched, cable winding, deviation and local accumulation are effectively avoided, and it is guaranteed that the pay-off process is stable and orderly.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of building electrical engineering, and particularly relates to a pay-off device for building electrical engineering and a pay-off method thereof. BACKGROUND

[0002] In the process of building electrical engineering construction, cable pay-off is a key process. In the pay-off process of the traditional pay-off device, the cable is prone to winding, deviation and other problems, which affects the pay-off efficiency and quality. At the same time, the existing pay-off device often lacks effective guiding and adjusting mechanism, and it is difficult to flexibly adjust the pay-off angle and tension of the cable according to the actual construction requirements, which brings many inconveniences to the construction. SUMMARY

[0003] The present application mainly provides a pay-off device for building electrical engineering and a pay-off method thereof to solve the technical problems in the background art.

[0004] The technical scheme adopted by the present application to solve the above technical problems is as follows:

[0005] A pay-off device for building electrical engineering comprises a support, a pay-off wheel rotatably connected to the support body of the support, and a cable guiding mechanism connected to one side of the support body.

[0006] The cable guiding mechanism comprises a support frame connected to the upper surface of one side of the support, a reciprocating moving assembly connected to the support frame, and a guiding assembly connected to the reciprocating moving assembly.

[0007] The guiding assembly comprises a translation frame connected to the execution end of the reciprocating moving assembly, a rotating frame rotatably connected to the support body of the translation frame, and two guide wheels rotatably connected to the frame body of the rotating frame. The two guide wheels are arranged in sequence from top to bottom.

[0008] Further, the reciprocating moving assembly comprises a reciprocating screw rod rotatably connected to the support frame, and a reciprocating translation block connected to the inside of the support body of the translation frame through a screw nut connected to the outside of the rod body of the reciprocating screw rod.

[0009] Further, a guide rod is connected in the support body of the support frame, and the rod body of the guide rod penetrates the support body of the translation frame. In the present application, the guiding assembly can drive the cable to move reciprocally, ensuring that the cable can be evenly paid off from the pay-off wheel, avoiding the accumulation of the cable in the local part of the pay-off wheel, and further ensuring the uniformity of the pay-off.

[0010] Further, the upper surface of the reciprocating translation block is connected with a telescopic rod, the top end of the telescopic rod is connected with a damping box, the damping box is rotationally connected with the rotating frame through a rotating shaft, a first annular electromagnet is connected in the box body of the damping box, and a metal ring connected with the outer surface of the shaft body of the rotating shaft is arranged in the first annular electromagnet. In the application, the stability and accuracy of the reciprocating movement of the translation frame are improved, the guiding assembly can stably guide the cable, and the problem of inaccurate cable guiding caused by the shaking of the translation frame is avoided.

[0011] Further, the telescopic rod comprises a guide rod body connected with the upper surface of the reciprocating translation block and a lifting rod inserted into the guide rod body, and the rod body of the lifting rod is connected with the bottom end of the box body of the damping box. In the application, the rotating resistance of the rotating frame can be flexibly adjusted according to the cable tension change, the guide wheel can better adapt to the cable tension change, the stability of the pay-off process is ensured, and the cable is prevented from being damaged due to unstable tension.

[0012] Further, the inside of the guide rod body is connected with a second annular electromagnet at both ends, and a permanent magnet is connected with one end of the lifting rod extending into the inside of the guide rod body. In the application, the height of the damping box and the rotating frame can be flexibly adjusted, the device can meet the pay-off height requirements in different construction scenes, and the applicability of the device is enhanced.

[0013] Further, the top end of the rod body of the lifting rod is connected with a reading head, one side of the reading head is connected with a scale grating, and the scale grating is connected in the frame body of the translation frame. In the application, the accurate lifting control of the lifting rod is realized, the height adjustment of the damping box and the rotating frame is more convenient and accurate, and the adaptability of the device to different pay-off heights is further improved.

[0014] Further, the frame body of the support is connected with a speed reducer, the input end of the speed reducer is connected with a motor, the output end of the speed reducer is connected with the wheel body of the pay-off wheel, the side, away from the speed reducer, of the pay-off wheel is connected with a Hall sensor, and the Hall sensor is connected with the rotating shaft of the pay-off wheel and connected to the frame body of the support. In the application, the lifting height of the lifting rod can be accurately detected, accurate data basis is provided for the accurate height adjustment of the telescopic rod by the control host, and the height adjustment accuracy is ensured.

[0015] Further, the frame body, close to the speed reducer, of the support is connected with a control host, and the control host is connected with the Hall sensor and the scale grating. In the application, the intelligent management of the operation of the entire pay-off device is realized, the pay-off process is more accurate and stable through the comprehensive analysis and control of the information of each sensor, and the pay-off quality and efficiency are further improved.

[0016] According to the wire laying device for building electrical engineering, a wire laying method for building electrical engineering is further provided, comprising the following steps:

[0017] Step one, winding the cable to be laid on the wire laying wheel on the support, then passing the free end of the cable between the two guide wheels of the guide assembly in the cable guiding mechanism, so that the cable is clamped by the two guide wheels;

[0018] Step two, driving the wire laying wheel to rotate on the support, so that the cable on the wire laying wheel starts to be laid out;

[0019] Step three, during the wire laying process, the translation frame of the guide assembly is driven to reciprocate by the reciprocating moving assembly of the cable guiding mechanism, and the rotating frame rotates relative to the translation frame according to the direction of the cable laying out, and the two guide wheels rotate with the movement of the cable to guide the cable;

[0020] Step four, when the wire laying length reaches the requirement, stop driving the wire laying wheel to rotate, and complete the wire laying operation.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] Firstly, the cable is clamped and guided by the guide assembly of the cable guiding mechanism, and the reciprocating movement of the reciprocating moving assembly effectively avoids the winding, deviation and local accumulation of the cable, ensuring the stability and order of the wire laying process.

[0023] Secondly, the telescopic rod can adjust the height of the guide assembly, the rotating frame can adapt to the change of the cable direction, and the damping box can adjust the rotating resistance, so that the device can adapt to the requirements of different construction scenes and cable types.

[0024] The present application will be explained in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of the present application;

[0026] Figure 2 is a front view of the present application;

[0027] Figure 3 is a structural schematic view of the guide assembly of the present application;

[0028] Figure 4 is a structural schematic view of the damping box of the present application;

[0029] Figure 5 is a structural schematic view of the telescopic rod of the present application.

[0030] In the figure: 10, support; 11, speed reducer; 12, motor; 13, control host; 14, Hall sensor; 20, pay-off wheel; 30, cable guide mechanism; 31, support frame; 32, reciprocating moving assembly; 321, reciprocating screw rod; 322, reciprocating translation block; 323, guide rod; 324, telescopic rod; 3241, guide rod body; 3242, lifting rod; 3243, permanent magnet; 3244, second annular electromagnet; 3245, scale grating; 3246, reading head; 325, damping box; 3251, rotating shaft; 3252, first annular electromagnet; 3253, metal ring; 33, guide assembly; 331, translation frame; 332, rotating frame; 333, guide wheel. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the relevant drawings, which show several embodiments of the present application. However, the present application can be implemented in different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and the like as used herein are for purposes of illustration and description only and are not intended to limit the present application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "and / or" includes a combination of one or more of the associated listed items.

[0034] The embodiment of the present application provides a pay-off device for building electrical engineering, and a schematic diagram of the pay-off device for building electrical engineering is shown in Figures 1-5 The pay-off device for building electrical engineering comprises a support 10, a pay-off wheel 20 is rotationally connected to a frame body of the support 10, and a cable guide mechanism 30 is connected to one side of the frame body of the support 10.

[0035] The cable guide mechanism 30 comprises a support frame 31 connected to an upper surface of one side of the support 10, a reciprocating moving assembly 32 connected to the support frame 31, and a guide assembly 33 connected to the reciprocating moving assembly 32.

[0036] The guiding assembly 33 comprises a translation frame 331 connected with the execution end of the reciprocating moving assembly 32, a rotating frame 332 rotationally connected with the frame body of the translation frame 331, and two guiding wheels 333 rotationally connected in the frame body of the rotating frame 332, and the two guiding wheels 333 are sequentially arranged from top to bottom.

[0037] It should be noted that in the embodiment, the support 10 provides a support base for the whole device, and the pay-off wheel 20 can rotate on the support 10 to realize the pay-off of the cable. The support frame 31 in the cable guiding mechanism 30 is fixed on the support 10 to provide installation support for the reciprocating moving assembly 32 and the guiding assembly 33. The reciprocating moving assembly 32 can drive the guiding assembly 33 to reciprocate, the translation frame 331 of the guiding assembly 33 moves with the reciprocating moving assembly 32, the rotating frame 332 can rotate relative to the translation frame 331 to adapt to the change of the cable direction, and the two guiding wheels 333 arranged from top to bottom clamp the cable and rotate with the cable during the pay-off to guide the cable.

[0038] In the above manner, stable pay-off of the cable is realized, the guiding effect of the guiding assembly 33 effectively avoids the winding and deviation of the cable during the pay-off, ensures the orderly pay-off, and improves the pay-off efficiency and quality.

[0039] Optionally, please refer to the accompanying drawings Figure 1 and 2 The reciprocating moving assembly 32 comprises a reciprocating screw rod 321 rotationally connected in the frame body of the support frame 31, and a reciprocating translation block 322 connected with the frame body of the translation frame 331 through a screw nut on the rod body of the reciprocating screw rod 321.

[0040] In the embodiment, the reciprocating screw rod 321 of the reciprocating moving assembly 32 rotates in the support frame 31, the reciprocating translation block 322 is connected with the reciprocating screw rod 321 through the screw nut, the rotary motion of the screw rod is converted into the linear reciprocating motion of the reciprocating translation block 322, and the translation frame 331 and the guiding assembly 33 connected with the reciprocating translation block 322 are synchronously reciprocated. Thus, the guiding assembly 33 can drive the cable to reciprocate, ensures the cable to be uniformly paid off from the pay-off wheel 20, avoids the cable to be locally accumulated on the pay-off wheel 20, and further ensures the uniformity of the pay-off.

[0041] Optionally, please refer to the accompanying drawings Figure 2 The frame body of the support frame 31 is connected with a guide rod 323, and the rod body of the guide rod 323 penetrates the frame body of the translation frame 331.

[0042] In the embodiment, the guide rod 323 in the support frame 31 penetrates through the translation frame 331, and the guide rod 323 plays a role of limiting and guiding the moving direction of the translation frame 331 when the translation frame 331 moves reciprocatingly with the reciprocating translation block 322, so as to prevent the translation frame 331 from deviating or shaking during the movement. Thus, the stability and accuracy of the reciprocating movement of the translation frame 331 are improved, the guiding assembly 33 can stably guide the cable, and the problem of inaccurate cable guiding caused by the shaking of the translation frame 331 is avoided.

[0043] Optionally, please refer to the attached drawings Figure 3 The upper surface of the reciprocating translation block 322 is connected with an extension rod 324, the top end of the extension rod 324 is connected with a damping box 325, the damping box 325 is rotationally connected with the rotating frame 332 through a rotating shaft 3251, the box body of the damping box 325 is connected with a first annular electromagnet 3252, and the first annular electromagnet 3252 is provided with a metal ring 3253 connected to the outer surface of the shaft body of the rotating shaft 3251.

[0044] In the embodiment, the extension rod 324 on the reciprocating translation block 322 supports the damping box 325, and the damping box 325 is connected with the rotating frame 332 through the rotating shaft 3251. When the first annular electromagnet 3252 is powered, a magnetic force is generated on the metal ring 3253 on the rotating shaft 3251, a damping force is formed, the rotating shaft 3251 is hindered from rotating, the damping force size can be changed by adjusting the current size of the first annular electromagnet 3252, and thus the rotating resistance of the rotating frame 332 is adjusted. Thus, the rotating resistance of the rotating frame 332 can be flexibly adjusted according to the cable tension change, the guide wheel 333 can better adapt to the cable tension change, the stability of the pay-off process is ensured, and the cable is prevented from being damaged due to unstable tension.

[0045] Optionally, please refer to the attached drawings Figure 2 The extension rod 324 comprises a guide rod body 3241 connected to the upper surface of the reciprocating translation block 322 and a lifting rod 3242 inserted on the guide rod body 3241, and the rod body one end of the lifting rod 3242 is connected with the box body bottom end of the damping box 325.

[0046] In the embodiment, the extension rod 324 is composed of the guide rod body 3241 and the lifting rod 3242, the lifting rod 3242 can be inserted on the guide rod body 3241 to perform extension and contraction movement, so as to drive the damping box 325 and the rotating frame 332 connected with the top end of the lifting rod 3242 to adjust the height, so as to adapt to different pay-off height requirements. The flexible adjustment of the height of the damping box 325 and the rotating frame 332 is realized, the device can meet the pay-off height requirements in different construction scenes, and the applicability of the device is enhanced.

[0047] Optionally, please refer to the attached drawings Figure 2 and 3The second annular electromagnet 3244 is connected to the inner ends of the guide rod body 3241. The permanent magnet 3243 is connected to the end of the lifting rod 3242 extending into the guide rod body 3241.

[0048] In the embodiment, when the second annular electromagnet 3244 at the inner ends of the guide rod body 3241 is electrified, the magnetic force is generated to interact with the permanent magnet 3243 at the end of the lifting rod 3242. By changing the on-off state and current direction of the second annular electromagnet 3244, the magnetic attraction or repulsion can be controlled, so as to drive the lifting rod 3242 to ascend or descend in the guide rod body 3241. The precise lifting control of the lifting rod 3242 is realized, the height adjustment of the damping box 325 and the rotating frame 332 is more convenient and accurate, and the adaptability of the device to different pay-off heights is further improved.

[0049] Optionally, please refer to the attached Figure 2 and 3 The rod body top end of the lifting rod 3242 is connected with a reading head 3246. One side of the reading head 3246 is connected with a scale grating 3245, and the scale grating 3245 is connected in the frame body of the translation frame 331.

[0050] In the embodiment, the reading head 3246 at the top end of the lifting rod 3242 moves with the lifting rod 3242. The reading head 3246 cooperates with the scale grating 3245 on the translation frame 331 to accurately detect the moving distance of the lifting rod 3242, that is, the lifting height, and transmit the detection information to the related control components. Therefore, the lifting height of the lifting rod 3242 can be accurately detected, accurate data basis is provided for the control host 13 to accurately adjust the height of the telescopic rod 324, and the height adjustment accuracy is ensured.

[0051] Optionally, please refer to the attached Figure 1 The frame body of the support 10 is connected with a speed reducer 11. The input end of the speed reducer 11 is connected with a motor 12. The output end of the speed reducer 11 is connected with the wheel body of the pay-off wheel 20. The side of the pay-off wheel 20 away from the speed reducer 11 is connected with a Hall sensor 14. The Hall sensor 14 is connected with the rotating shaft of the pay-off wheel 20 and connected to the frame body of the support 10.

[0052] In the embodiment, the motor 12 drives the pay-off wheel 20 to rotate through the speed reducer 11, so as to realize automatic pay-off. The Hall sensor 14 is connected with the rotating shaft of the pay-off wheel 20, so as to detect the rotating speed and rotating number of the pay-off wheel 20 in real time and transmit the detected information to the related control equipment.

[0053] Optionally, please refer to the attached Figure 1 The frame body of the support 10 near the speed reducer 11 is connected with a control host 13. The control host 13 is connected with the Hall sensor 14 and the scale grating 3245.

[0054] In the embodiment, the control host 13 is installed on the support 10, receives the rotation information of the pay-off wheel 20 transmitted by the Hall sensor 14 and the height information of the lifting rod 3242 transmitted by the scale grating 3245, and after analysis and processing, coordinates and controls the operation of various components of the device, such as adjusting the rotating speed of the motor 12 and controlling the electromagnetic iron.

[0055] Based on the same inventive concept, the embodiment also provides a pay-off method for building electrical engineering, comprising the following steps:

[0056] Step one, winding the cable to be payed off on the pay-off wheel 20 on the support 10, and then guiding the free end of the cable through the two guide wheels 333 of the guiding assembly 33 of the cable guiding mechanism 30, so that the cable is clamped by the two guide wheels 333;

[0057] Step two, driving the pay-off wheel 20 to rotate on the support 10, so that the cable on the pay-off wheel 20 starts to be payed off;

[0058] Step three, during the pay-off process, the reciprocating moving assembly 32 of the cable guiding mechanism 30 drives the reciprocating frame 331 of the guiding assembly 33 to reciprocate, and the rotating frame 332 rotates relative to the reciprocating frame 331 according to the pay-off direction of the cable, and the two guide wheels 333 rotate with the movement of the cable to guide the cable;

[0059] Step four, when the pay-off length reaches the requirement, stop driving the pay-off wheel 20 to rotate, and complete the pay-off operation.

[0060] The specific operation mode of the present application is as follows:

[0061] Winding the cable to be payed off on the pay-off wheel 20 of the support 10, and guiding the free end of the cable through the two guide wheels 333 of the guiding assembly 33 of the cable guiding mechanism 30, so that the cable is stably clamped. Starting the motor 12 through the control host 13, and transmitting the power of the motor 12 to the pay-off wheel 20 through the speed reducer 11 to drive the pay-off wheel 20 to rotate on the support 10, and start to pay off the cable.

[0062] During the pay-off process of the cable, the reciprocating screw rod 321 of the reciprocating moving assembly 32 rotates, the reciprocating moving block 322 is driven to reciprocate through the nut, and the reciprocating frame 331 and the guiding assembly 33 are driven to reciprocate along the guide rod 323, so that the cable is uniformly payed off. The rotating frame 332 of the guiding assembly 33 rotates relative to the reciprocating frame 331 according to the pay-off direction of the cable, and the two guide wheels 333 rotate with the movement of the cable to continuously guide the cable.

[0063] The first annular electromagnet 3252 in the damping box 325 adjusts the current according to the cable tension change, changes the damping of the rotating shaft 3251 through the magnetic force action with the metal ring 3253, and ensures the stable rotation of the rotating frame 332. If it is necessary to adjust the pay-off height, the control host 13 controls the second annular electromagnet 3244 in the guide rod body 3241 to work, drives the lifting rod 3242 to rise and fall through the magnetic force action with the permanent magnet 3243, the reading head 3246 cooperates with the scale grating 3245 to detect the height and feedback to the control host 13, and precise adjustment is realized.

[0064] The Hall sensor 14 detects the rotating speed and the number of turns of the pay-off wheel 20 in real time, transmits the information to the control host 13, and the control host 13 coordinates the control of the operation of each component according to the information. When the pay-off length reaches the requirement, the control host 13 controls the motor 12 to stop working, and the pay-off wheel 20 stops rotating, and the pay-off operation is completed.

[0065] The application is described above by combining with the drawings, and it is obvious that the specific implementation of the application is not limited by the above manner. As long as the method concept and the technical scheme of the application are adopted for such non-essential improvement, or the concept and the technical scheme of the application are directly applied to other occasions without improvement, they are all within the protection scope of the application.

Claims

1. A wire-laying device for building electrical engineering, comprising a bracket (10), characterized in that: A pay-off wheel (20) is rotatably connected to the frame of the bracket (10), and a cable guide mechanism (30) is connected to one side of the frame of the bracket (10); The cable guide mechanism (30) comprises a support frame (31) connected to an upper surface of one side of the bracket (10), a reciprocating component (32) connected to the support frame (31), and a guide component (33) connected to the reciprocating component (32); The guide assembly (33) comprises a translation frame (331) connected to the execution end of the reciprocating assembly (32), a rotating frame (332) rotatably connected to the frame body of the translation frame (331), and two guide wheels (333) rotatably connected to the frame body of the rotating frame (332), wherein the two guide wheels (333) are arranged in sequence from top to bottom.

2. The wire-laying device for building electrical engineering according to claim 1, characterized in that: The reciprocating assembly (32) includes a reciprocating screw rod (321) rotatably connected to the frame body of the support frame (31); the outside of the rod body of the reciprocating screw rod (321) is connected to a reciprocating translation block (322) via a nut; and the reciprocating translation block (322) is connected to the inside of the frame body of the translation frame (331).

3. The wire-laying device for building electrical engineering according to claim 2, characterized in that: A guide rod (323) is connected to the frame body of the support frame (31), and the rod body of the guide rod (323) passes through the frame body of the translation frame (331).

4. The wire-laying device for building electrical engineering according to claim 3, characterized in that: The upper surface of the reciprocating translation block (322) is connected to a telescopic rod (324), the top end of the telescopic rod (324) is connected to a damping box (325), the damping box (325) is rotatably connected to the rotating frame (332) via a rotating shaft (3251), the damping box (325) is connected to a first annular electromagnet (3252) inside the box body, and a metal ring (3253) connected to the outer surface of the rotating shaft (3251) is provided inside the first annular electromagnet (3252).

5. The wire-laying device for building electrical engineering according to claim 4, characterized in that: The telescopic rod (324) includes a guide rod body (3241) connected to the upper surface of the reciprocating translation block (322), and a lifting rod (3242) plugged into the guide rod body (3241), and one end of the lifting rod (3242) is connected to the bottom end of the box body of the damping box (325).

6. The wire-laying device for building electrical engineering according to claim 5, characterized in that: The two ends of the guide rod body (3241) are connected to a second annular electromagnet (3244), and one end of the lifting rod (3242) extending to the inside of the guide rod body (3241) is connected to a permanent magnet (3243).

7. The wire-laying device for building electrical engineering according to claim 6, characterized in that: The top end of the rod body of the lifting rod (3242) is connected to a reading head (3246), one side of the reading head (3246) is connected to a scale grating (3245), and the scale grating (3245) is connected to the frame body of the translation frame (331).

8. The wire-laying device for building electrical engineering according to claim 1, characterized in that: A reducer (11) is connected to the frame of the bracket (10), an input end of the reducer (11) is connected to a motor (12), an output end of the reducer (11) is connected to the wheel body of the pay-off wheel (20), a Hall sensor (14) is connected to the side of the pay-off wheel (20) away from the reducer (11), and the Hall sensor (14) is connected to the rotating shaft of the pay-off wheel (20) and is connected to the frame of the bracket (10).

9. The wire-laying device for building electrical engineering according to claim 1, characterized in that: A control host (13) is connected to the frame of the bracket (10) on the side close to the reducer (11), and the control host (13) is connected to the Hall sensor (14) and the scale grating (3245).

10. A method for laying out a wire for building electrical engineering, applied to the wire laying out device for building electrical engineering according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Wind the cable to be released onto the pay-off wheel (20) on the bracket (10), and then pass the free end of the cable between two guide wheels (333) of the guide assembly (33) in the cable guide mechanism (30), so that the cable is clamped by the two guide wheels (333); Step 2: driving the pay-off wheel (20) to rotate on the bracket (10) so that the cable on the pay-off wheel (20) starts to be paid out; Step 3: During the cable pay-off process, the reciprocating assembly (32) of the cable guide mechanism (30) drives the translation frame (331) of the guide assembly (33) to reciprocate, and at the same time, the rotating frame (332) rotates relative to the translation frame (331) according to the cable pay-off direction, and the two guide wheels (333) rotate with the movement of the cable to guide the cable; Step 4: When the pay-off length reaches the required length, the pay-off wheel (20) is stopped from rotating to complete the pay-off operation.

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