A tray-locked automatic pay-off

Abstract

The application belongs to the technical field of pay-off machine, and particularly relates to a disc-locked automatic pay-off equipment, which comprises a pay-off machine host, a pay-off rotating shaft and a wire disc body. The pay-off rotating shaft is rotatably arranged in the pay-off machine host, and the front end of the pay-off rotating shaft extends out of the pay-off machine host. The wire disc body is detachably arranged at the outer end of the pay-off rotating shaft, that is, the wire disc body is located at the front of the pay-off machine host. In the application, the two supporting tables move towards each other and block the front of the wire disc body, further preventing the wire disc body from being separated from the pay-off rotating shaft. When the driven rack slides into the mechanical cavity, the driving gear drives the push shaft to rotate, so that the elliptical block rotates and pushes the smooth plate upward, the supporting frame moves upward with the rolling friction wheels, the two rolling friction wheels are in contact with the pay-off rotating shaft, the pay-off rotating shaft is movably supported, the burden of the pay-off rotating shaft is reduced, the deformation of the pay-off rotating shaft is avoided, the wire disc body is prevented from being deviated, and the accuracy of the pay-off is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to an automatic pay-off equipment, in particular to a disc-locked automatic pay-off equipment. BACKGROUND

[0002] The pay-off machine is a kind of auxiliary equipment of wire and cable, which is matched with stranding machine to play the role of pay-off. The traditional pay-off machine mainly plays the role of pay-off by rotating the wire reel driven by motor. There is no device for detecting the tension of wire bundle in the pay-off machine, and the tensioning and relaxing signal of wire bundle cannot be effectively fed back, which often causes the phenomenon of excessive wire bundle accumulation or insufficient wire bundle to cause the machine to be stuck, affecting the later wire bundle cutting. Due to the different sizes of wire reels and the continuous pay-off process of wire reels, the shape of wire coil gradually changes as the cable decreases. The cable guiding device in the prior art cannot guarantee the accurate pay-off of the pay-off machine due to its fixed mode, and the cable is prone to be pulled during the process, which reduces the work efficiency and causes corresponding damage to the pay-off machine, increasing the maintenance and use cost. In addition, when the pay-off machine works, there is no measure to lock the wire reel and support the pay-off shaft, which causes the wire reel body to be loose on the pay-off shaft, resulting in pay-off deviation, and the pay-off bearing is overloaded or time is too long, which easily causes wear and tear and affects the pay-off position of the wire reel.

[0003] In view of this, the present application designs a disc-locked automatic pay-off equipment. SUMMARY

[0004] The main purpose of the present application is to provide a disc-locked automatic pay-off equipment to effectively solve the problems raised by the inventor in the above background.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A disc-locked automatic pay-off equipment, comprising a pay-off machine main machine, a pay-off rotating shaft and a wire reel body, the pay-off rotating shaft is rotatably installed in the pay-off machine main machine, and the front end of the pay-off rotating shaft extends to the outside of the pay-off machine main machine, the wire reel body is detachably installed at the outer end of the pay-off rotating shaft, i.e. the wire reel body is located on the front of the pay-off machine main machine, the bottom of the pay-off machine main machine is provided with a mounting port, and two symmetrical supporting tables are movably installed in the mounting port, the upper end of each supporting table is movably provided with a supporting frame, and a rolling friction wheel is rotatably installed on each supporting frame, the rolling friction wheel is located below the side of the front end of the pay-off rotating shaft, and the rolling friction wheel is located outside the mounting port, the moving direction of the two supporting tables is opposite, two main machine mounting frames are fixedly installed on the left side of the front of the pay-off machine main machine, a linear guide rail is fixedly installed between the two main machine mounting frames, a correcting mechanism is movably installed on the linear guide rail, and a guide wheel assembly is installed on the correcting mechanism.

[0007] Preferably, the mounting port is fixedly installed with a support column, the two supporting tables are slidingly installed on the support column, the mounting port is rotatably installed with an X-axis bidirectional threaded rod, and the two supporting tables are threadedly installed on the screw thread ends of the X-axis bidirectional threaded rod in opposite directions.

[0008] Preferably, the supporting table is internally provided with a mechanical cavity, and a smooth plate is slidingly installed in the mechanical cavity; the lower end of the support frame is slidingly installed in the upper end of the supporting table, and the bottom end of the support frame is fixedly connected with the top of the smooth plate; a rotating shaft is rotatably installed in the mechanical cavity, and an oval block is fixedly installed on the rotating shaft; and the short axis side of the oval block is in contact with the bottom of the smooth plate.

[0009] Preferably, a driving gear is fixedly installed on the rotating shaft, the bottom of the smooth plate is provided with a notch, and the upper end of the driving gear extends into the notch; the thickness of the oval block is greater than the width of the notch; a driven rack is slidingly installed on the inner bottom wall of the mechanical cavity, and the driven rack is in meshing transmission with the driving gear; the side, where the two supporting tables are close to each other, is provided with a through hole, and the through hole is communicated with the mechanical cavity; one end of the driven rack is movably penetrated through the through hole and extends to the outside of the supporting table, and the other end of the driven rack is fixedly connected with a return spring; and the other end of the return spring is fixedly connected with the inner wall of the mechanical cavity.

[0010] Preferably, the correcting mechanism comprises a groove, a correcting slide, a Y-axis unidirectional threaded rod, a driven gear, a speed reduction shaft and a speed reduction gear; the top of the linear guide rail is provided with a groove, and the groove is rotatably installed with a Y-axis unidirectional threaded rod; the correcting slide is threadedly installed on the Y-axis unidirectional threaded rod and slidingly installed in the groove; the guide wheel assembly is installed on the correcting slide; the rear end of the Y-axis unidirectional threaded rod extends into the wire feeding machine host, and the rear end of the Y-axis unidirectional threaded rod and the part of the wire feeding shaft located in the wire feeding machine host are both fixedly installed with a driven gear; two speed reduction shafts are rotatably installed in the wire feeding machine host, and speed reduction gears are fixedly installed on the two speed reduction shafts; the two speed reduction gears are in meshing transmission with each other; the driven gear on the Y-axis unidirectional threaded rod is in meshing transmission with the left speed reduction gear; and the driven gear on the wire feeding shaft is in meshing transmission with the right speed reduction gear.

[0011] Preferably, the diameter of the driven gear on the Y-axis unidirectional threaded rod is greater than the diameter of the driven gear on the wire feeding shaft.

[0012] Preferably, the front side of the pay-off shaft is provided with three automatic lock openings arranged in a ring shape, an opening and closing shaft is rotatably installed in the automatic lock opening, and a special-shaped clamping head is fixedly installed on the opening and closing shaft, and the three special-shaped clamping heads are clamped on the front side of the reel body.

[0013] Preferably, a parallel sliding rail is slidably installed in the automatic lock opening, a same-direction rack is fixedly connected to the front end of the parallel sliding rail, a mechanical gear is fixedly installed on the opening and closing shaft, the mechanical gear is in meshing transmission with the same-direction rack, a sliding groove is formed in the side surface of the pay-off shaft, and an L-shaped force key is slidably connected in the sliding groove, the L-shaped force key is fixedly connected to the rear end of the parallel sliding rail, and the curved section of the L-shaped force key is located outside the pay-off shaft, and the rear side of the reel body is extruded on the curved end of the L-shaped force key.

[0014] Compared with the prior art, the application has the following advantages:

[0015] (1) In the application, when the reel is installed, the reel body is sleeved on the pay-off shaft, the rear side of the reel body extrudes the L-shaped force key, the parallel sliding rail slides backward in the automatic lock opening, the same-direction rack moves, the opening and closing shaft rotates under the meshing transmission of the mechanical gear and the same-direction rack, the special-shaped clamping head swings and clamps the front side of the reel body, and the reel body is not easily loosened on the pay-off shaft, so that the reel body is automatically locked on the pay-off shaft, and the function of automatic locking of the reel is realized through the installation of the reel.

[0016] (2) In the application, before the pay-off operation, the first step motor is operated to drive the X-axis bidirectional threaded rod to rotate, the two supporting tables slide towards each other along the supporting column, when the supporting tables are about to move below the pay-off shaft, the driven racks on the two supporting tables contact each other, when the supporting tables continue to move, the driven racks move into the mechanical cavity, until the two supporting tables contact each other, at this time, the supporting tables are in front of the reel body, further preventing the reel body from being separated from the pay-off shaft, when the driven racks slide into the mechanical cavity, the driving gear drives the driving shaft to rotate, the elliptical block rotates and pushes up the smooth plate, the supporting frame moves upward with the rolling friction wheels, the two rolling friction wheels contact the pay-off shaft, so as to movably support the pay-off shaft, thereby reducing the burden of the pay-off shaft, avoiding deformation of the pay-off shaft and causing the reel body to be deviated, and ensuring the accuracy of the pay-off.

[0017] (Three), in this application, when paying out wire, the cable on the wire reel body is passed through the guide pulley, so that the cable can be pulled and guided, avoiding confusion, and the external servo motor works, which will drive the wire paying-out shaft to rotate, that is, the wire reel body can pay out wire, the follow-up gear on the wire paying-out shaft drives the reduction gear to rotate, and finally drives the other follow-up gear to rotate, so that the Y-axis single-threaded rod rotates slowly, the correction slide slowly moves along the groove, and the guide wheel assembly slowly moves, the wire paying-out position of the cable on the wire reel body gradually deviates, and the present application adjusts the position of the guide wheel assembly according to the position of the cable on the wire reel body, so that the cable can be corrected in real time, avoid being pulled, and the wire paying-out effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural front view of the automatic wire paying-out equipment provided by the present application;

[0019] Figure 2 Fig. 2 is a schematic view of the connection between the wire paying-out shaft and the wire reel body in the present application; Figure 1

[0020] Figure 3 Fig. 3 is a schematic view of the relative movement of the two supporting tables in the present application; Figure 1

[0021] Figure 4 Fig. 4 is a partial structural schematic view of the present application; Figure 3

[0022] Figure 5 Fig. 5 is a schematic view of the present application after removing the wire reel body; Figure 1

[0023] Figure 6 Fig. 6 is a structural schematic view of the wire paying-out shaft in the present application; Figure 5

[0024] Figure 7 Fig. 7 is a structural side view of the wire paying-out shaft in the present application; Figure 5

[0025] Figure 8 Fig. 8 is a structural cross-sectional view of the automatic wire paying-out equipment provided by the present application;

[0026] Figure 9 Figure 8 Fig. 9 is a partial structural schematic view of the present application;

[0027] Figure 10 Fig. 10 is a structural top view of the linear guide rail.

[0028] FIG. 1:

[0029] ​​​​​​​1-Host machine of wire drawing machine; 101-Supporting column; 102-X-axis bidirectional threaded rod; 103-First stepper motor; 104-Speed reduction shaft; 105-Speed reduction gear;

[0030] 2-Wire drawing shaft; 201-Automatic lock; 202-Opening and closing shaft; 203-Abnormal clamping head; 204-Parallel sliding rail; 205-Mechanical gear; 206-Contrarotatory rack; 207-L-shaped force key;

[0031] 3-Wire disc main body;

[0032] 4-Supporting table; 401-Supporting frame; 402-Rolling friction wheel; 403-Smooth plate; 404-Shifting shaft; 405-Elliptical block; 406-Driving gear; 407-Following rack; 408-Reset spring;

[0033] 5-Host machine mounting frame;

[0034] 6-Linear guide rail; 601-Correction sliding seat; 602-Y-axis unidirectional threaded rod; 603-Following gear;

[0035] 7-Guide wheel assembly. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] Please refer to Figures 1-10 The present application provides the following embodiments:

[0038] The application discloses an automatic pay-off equipment with tray locking, which comprises a pay-off machine host 1, a pay-off rotating shaft 2 and a wire reel main body 3, the pay-off rotating shaft 2 is rotatably arranged in the pay-off machine host 1 and extends to the outside of the pay-off machine host 1, the wire reel main body 3 is detachably arranged at the outer end of the pay-off rotating shaft 2, that is, the wire reel main body 3 is arranged on the front face of the pay-off machine host 1, a mounting hole is formed in the bottom of the pay-off machine host 1, two symmetrical supporting tables 4 are movably arranged in the mounting hole, supporting frames 401 are movably arranged at the upper ends of the two supporting tables 4, and rolling friction wheels 402 are rotatably arranged on the two supporting frames 401, the rolling friction wheels 402 are arranged below the front end of the pay-off rotating shaft 2 and outside the mounting hole, the moving directions of the two supporting tables 4 are opposite, two host mounting frames 5 are fixedly arranged on the left side of the front face of the pay-off machine host 1, a linear guide rail 6 is fixedly arranged between the two host mounting frames 5, a correcting mechanism is movably arranged on the linear guide rail 6, a guide wheel assembly 7 is arranged on the correcting mechanism, an external servo motor is arranged in the pay-off machine host 1 and used for driving the pay-off rotating shaft 2 to rotate.

[0039] Specifically, a supporting column 101 is fixedly arranged in the mounting hole, the two supporting tables 4 are slidably arranged on the supporting column 101, an X-axis bidirectional threaded rod 102 is rotatably arranged in the mounting hole, the two supporting tables 4 are threadedly arranged on the screw ends with opposite rotation directions of the X-axis bidirectional threaded rod 102, a first stepping motor 103 is fixedly arranged on the pay-off machine host 1 and connected with the X-axis bidirectional threaded rod 102, a mechanical cavity is formed in the supporting table 4, a smooth plate 403 is slidably arranged in the mechanical cavity, the lower end of the supporting frame 401 is slidably arranged through the upper end of the supporting table 4, the bottom end of the supporting frame 401 is fixedly connected with the top of the smooth plate 403, a driving shaft 404 is rotatably arranged in the mechanical cavity, an oval block 405 is fixedly arranged on the driving shaft 404, the short axis side of the oval block 405 is in contact with the bottom of the smooth plate 403, a driving gear 406 is fixedly arranged on the driving shaft 404, a notch is formed in the bottom of the smooth plate 403, the upper end of the driving gear 406 extends into the notch, the thickness of the oval block 405 is greater than the width of the notch, a driven rack 407 is slidably arranged on the inner bottom wall of the mechanical cavity and in mesh transmission with the driving gear 406, a through hole is formed in the side, where the two supporting tables 4 are close to each other, the through hole is communicated with the mechanical cavity, one end of the driven rack 407 is movably arranged through the through hole and extends to the outside of the supporting table 4, and the other end of the driven rack 407 is fixedly connected with a return spring 408, and the other end of the return spring 408 is fixedly connected with the inner wall of the mechanical cavity.

[0040] Specifically, the correction mechanism comprises a groove, a correction sliding seat 601, a Y-axis one-way threaded rod 602, a follow-up gear 603, a reduction shaft 104 and a reduction gear 105, the top of the linear guide rail 6 is provided with the groove, and the Y-axis one-way threaded rod 602 is rotatably installed in the groove, the correction sliding seat 601 is threadedly installed on the Y-axis one-way threaded rod 602 and slidably installed in the groove, the guide wheel assembly 7 is installed on the correction sliding seat 601, the rear end of the Y-axis one-way threaded rod 602 extends into the wire unwinder main machine 1, and the rear end of the Y-axis one-way threaded rod 602 and the part of the wire unwinding shaft 2 located in the wire unwinder main machine 1 are both fixedly installed with the follow-up gear 603, two reduction shafts 104 of the same height are rotatably installed in the wire unwinder main machine 1, and the two reduction shafts 104 are both fixedly installed with the reduction gears 105, the two reduction gears 105 are in meshing transmission with each other, the follow-up gear 603 on the Y-axis one-way threaded rod 602 is in meshing transmission with the left reduction gear 105, and the follow-up gear 603 on the wire unwinding shaft 2 is in meshing transmission with the right reduction gear 105.

[0041] Specifically, the diameter of the follow-up gear 603 on the Y-axis one-way threaded rod 602 is larger than that of the follow-up gear 603 on the wire unwinding shaft 2, and the diameter of the reduction gear 105 is smaller than that of the follow-up gear 603 on the Y-axis one-way threaded rod 602.

[0042] Specifically, the front side of the wire unwinding shaft 2 is provided with three automatic lock openings 201 arranged in an annular array, the automatic lock opening 201 is rotatably installed with an opening and closing shaft 202, and the opening and closing shaft 202 is fixedly installed with a special-shaped clamping head 203, the three special-shaped clamping heads 203 are clamped on the front face of the wire reel main body 3, the automatic lock opening 201 is slidably installed with a parallel sliding rail 204, and the front end of the parallel sliding rail 204 is fixedly connected with a homodromous rack 206, the opening and closing shaft 202 is fixedly installed with a mechanical gear 205, and the mechanical gear 205 is in meshing transmission with the homodromous rack 206, the side surface of the wire unwinding shaft 2 is provided with a sliding groove, and the sliding groove is slidably connected with an L-shaped force key 207, the L-shaped force key 207 is fixedly connected with the rear end of the parallel sliding rail 204, and the curved section of the L-shaped force key 207 is located outside the wire unwinding shaft 2, and the rear side of the wire reel main body 3 is extruded on the curved end of the L-shaped force key 207.

[0043] Specifically, the guide wheel assembly 7 is composed of a connecting rod, a guide pulley and the like, the connecting rod is rotatably installed with two guide pulleys arranged in an up-down manner, and the connecting rod is fixedly installed on the top of the correction sliding seat 601, when the wire is unwound, the cable on the wire reel main body 3 passes between the two guide pulleys, and the guide pulley can traction the cable to make it orderly.

[0044] The specific implementation of the embodiment is that when the wire reel body 3 is not assembled, the special-shaped clamping head 203 is in a state of being parallel to the pay-off shaft 2, so that it cannot swing and expand, and the diameter of the pay-off shaft 2 does not change, so that when the wire reel body 3 is subsequently assembled, it can be sleeved on the pay-off shaft 2, at this time, the distance between the two rolling friction wheels 402 is larger than the diameter of the wire reel body 3, which avoids the blockage of the supporting table 4 and is beneficial to subsequent assembly, and the rolling friction wheel 402 is slightly lower than the pay-off shaft 2;

[0045] When the wire reel body 3 is assembled, the wire reel body 3 is sleeved on the pay-off shaft 2, the rear side of the wire reel body 3 will press the L-shaped force key 207, so that the parallel sliding rail 204 slides backward in the automatic lock 201, and the same direction rack 206 moves, under the meshing transmission action of the mechanical gear 205, the opening and closing shaft 202 rotates, so that the special-shaped clamping head 203 swings and clamps the front side of the wire reel body 3, and the wire reel body 3 will not easily loosen on the pay-off shaft 2, so that the wire reel body 3 can be automatically locked on the pay-off shaft 2, and the function of automatic locking of the wire reel is realized through the assembly action;

[0046] When paying off, the cable on the wire reel body 3 is threaded through the guide pulley, so that the cable can be pulled and guided to avoid confusion, and the servo motor is operated, which drives the pay-off shaft 2 to rotate, that is, the wire reel body 3 is driven to pay off, the driven gear 603 on the pay-off shaft 2 drives the speed reducer 105 to rotate, and finally drives the other driven gear 603 to rotate, so that the Y-axis single-threaded rod 602 rotates slowly, and the correction slide 601 moves slowly along the groove, and the guide wheel assembly 7 moves slowly, the position of the cable on the wire reel body 3 gradually deviates, and the position of the guide wheel assembly 7 is automatically adjusted according to the position of the cable on the wire reel body 3, so that the cable can be corrected in real time, and the paying-off effect is better;

[0047] Before the operation of paying out the wire, the first step motor 103 works to drive the X-axis double thread rod 102 to rotate, and the two supporting tables 4 will slide towards each other along the supporting column 101, when the supporting tables 4 will move below the wire paying out shaft 2, the driven racks 407 on the two supporting tables 4 will contact each other, when the supporting tables 4 continue to move, the driven racks 407 will move into the mechanical cavity, until the two supporting tables 4 contact each other, at this time, the supporting tables 4 are blocked in front of the wire disc main body 3, further preventing the wire disc main body 3 from being separated from the wire paying out shaft 2, when the driven racks 407 slide into the mechanical cavity, the driving gear 406 drives the shifting shaft 404 to rotate, so that the elliptical block 405 rotates and pushes up the smooth plate 403, the supporting frame 401 will move upwards with the rolling friction wheels 402, so that the two rolling friction wheels 402 contact the front end of the wire paying out shaft 2, to support the wire paying out shaft 2, thereby reducing the burden of the wire paying out shaft 2, avoiding the deformation of the wire paying out shaft 2 to cause the wire disc main body 3 to be deviated, and ensuring the accuracy of paying out the wire.

[0048] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the present specification. The present specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A tray-locked automatic pay-off apparatus, characterized by: Including wire drawing machine host (1), wire drawing shaft (2) and wire disc body (3), the inside rotation of wire drawing machine host (1) is installed wire drawing shaft (2), and the front end of wire drawing shaft (2) extends to the outside of wire drawing machine host (1), wire disc body (3) is detachably installed at the outer end of wire drawing shaft (2), namely wire disc body (3) is located at the front of wire drawing machine host (1), the bottom of wire drawing machine host (1) is provided with installation port, and two symmetrical supporting tables (4) are movably installed in the installation port, the upper end of two supporting tables (4) is movably installed with support frame (401), and the upper end of two support frames (401) is rotatably installed with rolling friction wheel (402), the rolling friction wheel (402) is located below the side of the front end of wire drawing shaft (2), and the rolling friction wheel (402) is located outside the installation port, the moving direction of two supporting tables (4) is opposite, the left side of the front of wire drawing machine host (1) is fixedly installed with two host installation frames (5), and the linear guide rail (6) is fixedly installed between the two host installation frames (5), the linear guide rail (6) is movably installed with the straightening mechanism, and the straightening mechanism is installed with guide wheel assembly (7); The inside of the supporting table (4) is provided with a mechanical cavity, and a smooth plate (403) is slidably installed in the mechanical cavity, the lower end of the support frame (401) is slidably installed in the upper end of the supporting table (4), and the bottom end of the support frame (401) is fixedly connected with the top of the smooth plate (403), a dialing shaft (404) is rotatably installed in the mechanical cavity, and an oval block (405) is fixedly installed on the dialing shaft (404), the short axis side of the oval block (405) is in contact with the bottom of the smooth plate (403).

2. The palletized locking automatic line pay-off apparatus according to claim 1, characterized in that: The installation port is fixedly installed with a support column (101), two supporting tables (4) are slidably installed on the support column (101), an X-axis bidirectional threaded rod (102) is rotatably installed in the installation port, and two supporting tables (4) are threadedly installed on the screw end of opposite rotation of the X-axis bidirectional threaded rod (102), a first stepping motor (103) is fixedly installed on the wire drawing machine host (1), and the output end of the first stepping motor (103) is fixedly connected with the X-axis bidirectional threaded rod (102).

3. The palletized locking automatic line pay-off apparatus according to claim 2, characterized in that: The driving gear (406) is fixedly installed on the dialing shaft (404), the bottom of the smooth plate (403) is provided with a notch, and the upper end of the driving gear (406) extends into the notch, the thickness of the oval block (405) is greater than the width of the notch, a driven rack (407) is slidably installed on the inner bottom wall of the mechanical cavity, and the driven rack (407) is in meshing transmission with the driving gear (406), two supporting tables (4) are provided with through holes on the side close to each other, and the through holes are communicated with the mechanical cavity, one end of the driven rack (407) is movably penetrated through the through hole and extends to the outside of the supporting table (4), and the other end of the driven rack (407) is fixedly connected with a return spring (408), and the other end of the return spring (408) is fixedly connected with the inner wall of the mechanical cavity.

4. The palletized locking automatic line pay-off apparatus according to claim 3, characterized in that: The correction mechanism comprises a groove, a correction sliding seat (601), a Y-axis one-way threaded rod (602), a follow-up gear (603), a speed reduction shaft (104) and a speed reduction gear (105), the top of the linear guide rail (6) is provided with a groove, and the Y-axis one-way threaded rod (602) is rotatably arranged in the groove, the correction sliding seat (601) is threadedly arranged on the Y-axis one-way threaded rod (602) and is slidably arranged in the groove, the guide wheel assembly (7) is arranged on the correction sliding seat (601), the rear end of the Y-axis one-way threaded rod (602) extends into the pay-off machine main body (1), and the rear end of the Y-axis one-way threaded rod (602) and the part of the pay-off shaft (2) located in the pay-off machine main body (1) are both fixedly provided with the follow-up gear (603), two speed reduction shafts (104) are rotatably arranged in the pay-off machine main body (1) and are arranged at the same height, and the speed reduction gears (105) are fixedly arranged on the two speed reduction shafts (104), the two speed reduction gears (105) are in meshing transmission with each other, the follow-up gear (603) on the Y-axis one-way threaded rod (602) is in meshing transmission with the left speed reduction gear (105), and the follow-up gear (603) on the pay-off shaft (2) is in meshing transmission with the right speed reduction gear (105).

5. A palletized locking automatic pay-off apparatus according to claim 4, characterized in that: The diameter of the follow-up gear (603) on the Y-axis one-way threaded rod (602) is greater than that of the follow-up gear (603) on the pay-off shaft (2), and the diameter of the speed reduction gear (105) is smaller than that of the follow-up gear (603) on the Y-axis one-way threaded rod (602).

6. The palletized locking automatic line pay-off apparatus according to claim 5, characterized in that: The front side of the pay-off shaft (2) is provided with three automatic lock openings (201) arranged in an annular array, the automatic lock openings (201) are rotatably provided with opening and closing shafts (202), and the opening and closing shafts (202) are fixedly provided with special-shaped clamping heads (203), and the three special-shaped clamping heads (203) are clamped on the front face of the reel body (3).

7. A palletized locking automatic line pay-off apparatus according to claim 6, characterized in that: The automatic lock openings (201) are slidably provided with parallel sliding rails (204), the front end of the parallel sliding rail (204) is fixedly connected with a same-direction rack (206), the opening and closing shafts (202) are fixedly provided with mechanical gears (205), the mechanical gears (205) are in meshing transmission with the same-direction rack (206), the side surface of the pay-off shaft (2) is provided with a sliding groove, and the sliding groove is slidably connected with an L-shaped force key (207), the L-shaped force key (207) is fixedly connected with the rear end of the parallel sliding rail (204), the curved section of the L-shaped force key (207) is located outside the pay-off shaft (2), and the rear side of the reel body (3) is extruded on the curved end of the L-shaped force key (207).

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