Lithium strip deviation rectifying and winding machine

Abstract

The lithium strip deviation rectifying and winding machine comprises an avoiding transmission mechanism, a movable plate frame is arranged on the avoiding transmission mechanism, a thickness measuring mechanism, a passive unwinding mechanism and a winding deviation rectifying mechanism are arranged on the movable plate frame, a first transmission roller set is arranged between the passive unwinding mechanism and the winding deviation rectifying mechanism, a first strip pressing mechanism is arranged on one side of the first transmission roller set, and a second strip pressing mechanism is arranged on the other side of the first transmission roller set. A second transmission roller set and a third transmission roller set are arranged on the two sides of the thickness measuring mechanism correspondingly, and a deviation rectifying sensor mechanism is arranged between the third transmission roller set and the winding deviation rectifying mechanism. The lithium strip winding device has an intelligent deviation rectifying function, ensures that the integral winding effect of the lithium strip and the release film is good, and solves the problems that the lithium strip is uneven, different in tightness degree and poor in winding effect after being wound into a roll due to the fact that the traditional lithium strip winding device does not have the intelligent deviation rectifying function; and the problem that the traditional winding equipment is easy to interfere with an opened lithium strip extruder die due to complex structure and inconvenience in movement is also solved.

Description

Technical Field

[0001] The utility model relates to the field of winding machines, in particular to a lithium strip deviation-correcting winding machine. Background Art

[0002] With the widespread application of lithium batteries, the demand for lithium metal sheets is growing, and lithium metal coils have broad prospects. The production of lithium ribbons with uniform thickness has become the primary problem to be solved. After production, the lithium ribbon needs to be wound for easy storage and transportation. Traditional lithium ribbon winding equipment does not have an intelligent correction function. After the lithium ribbon is wound into a coil, the lithium ribbon is not flat, which can easily cause wrinkles or even damage to the lithium ribbon. When the release film is covered on the surface of the lithium ribbon, as the winding radius of the lithium ribbon coil continues to increase, the lithium ribbon coil pulls the release film to unwind at an accelerated speed. The release film is prone to uneven winding tightness as the lithium ribbon is wound, resulting in poor overall winding effect and the problem of unqualified lithium ribbon winding. In addition, the traditional winding equipment has a complex structure and is inconvenient to move, which can easily interfere with the opening of the lithium ribbon extruder die. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a lithium strip deviation-correcting and winding machine.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: the lithium strip correction and winding machine includes a plate table, an avoidance transmission mechanism is provided on the plate table, a movable plate frame is provided on the avoidance transmission mechanism, a thickness measuring mechanism, a passive unwinding mechanism and a winding correction mechanism are provided on the movable plate frame, a first transmission roller group is provided between the passive unwinding mechanism and the winding correction mechanism, the release film is led out from the passive unwinding mechanism, passes through the first transmission roller group and is led to the winding correction mechanism, a first belt pressing mechanism is provided on one side of the first transmission roller group, the first belt pressing mechanism is used in conjunction with the first transmission roller group, and the first belt pressing mechanism presses the release film tightly on the first transmission roller group. On the moving roller group, the second transmission roller group and the third transmission roller group are respectively provided on both sides of the thickness measuring mechanism. The third transmission roller group is located between the thickness measuring mechanism and the winding and correcting mechanism. A correction sensor mechanism is provided between the third transmission roller group and the winding and correcting mechanism. A second belt pressing mechanism is provided on one side of the third transmission roller group. The second belt pressing mechanism is used in conjunction with the third transmission roller group. The lithium belt passes through the second transmission roller group, the thickness measuring mechanism and the third transmission roller group in sequence and is finally led to the winding and correcting mechanism. The second belt pressing mechanism presses the lithium belt on the third transmission roller group, and the release film covers the surface of the lithium belt. The winding and correcting mechanism corrects and winds the lithium belt and the release film.

[0005] Preferably, the winding and correcting mechanism includes a first servo motor, a first reducer is provided at the output end of the first servo motor, a material reel is provided on the outside of one end of the first reducer, a first coupling is connected between the first reducer and one end of the material reel, the material reel sleeve is provided with a first bearing seat, and two limiting circular plates are sleeved on the other end of the material reel, and locking seats are respectively provided on the two outer sides of the two limiting circular plates facing back to each other.

[0006] A correction platform is provided under the first bearing seat, and a first linear sliding module and a second linear sliding module are provided under the correction platform respectively. The first linear sliding module and the second linear sliding module are arranged in parallel. A positioning mounting plate is provided under the first linear sliding module and the second linear sliding module. A first screw rod assembly is provided under the positioning mounting plate. The first screw rod assembly is connected and installed with the correction platform, and a second servo motor is provided on the outside of one end portion of the first screw rod assembly. A second coupling is connected between the second servo motor and the first screw rod assembly.

[0007] A shading sheet is provided on one side of the correction platform, and a first photoelectric switch, a second photoelectric switch and a third photoelectric switch are respectively provided on the same side of the positioning mounting plate opposite to the correction platform. The first photoelectric switch, the second photoelectric switch and the third photoelectric switch are respectively used in conjunction with the shading sheet.

[0008] By adopting the above-mentioned technical solution, the first servo motor drives the material reel to rotate through the first reducer and the first coupling to wind the lithium ribbon and release film. The second servo motor drives the first screw assembly to rotate forward and reverse through the second coupling. The forward and reverse rotation of the first screw assembly drives the correction platform to move back and forth on the first linear slide module and the second linear slide module, so that the material reel can move back and forth with the movement of the correction platform. The winding correction mechanism can drive the correction platform and the winding shaft on the correction platform to move back and forth synchronously based on the deviation of the lithium ribbon transmission detected by the correction sensor mechanism. The second servo motor drives the correction platform and the winding shaft on the correction platform to move back and forth to correct the lithium ribbon and release film wound on the material reel. The correction movement range of the correction platform is the distance between the first and second photoelectric switches. The third photoelectric switch is the static position when the winding is stopped.

[0009] Preferably, the correction sensor mechanism includes a conveying roller bracket installed on one end of the correction platform, the conveying roller bracket is provided with a follower roller and an installation positioning shaft, a front and rear telescopic shaft is provided on one side of the installation positioning shaft, the follower roller, the installation positioning shaft and the front and rear telescopic shafts are arranged parallel to each other, a positioning splint is connected between the front and rear telescopic shafts and the installation positioning shaft, linear bearings are provided on the front and rear telescopic shafts, the linear bearings are installed on the moving plate frame, a mounting frame is provided on one end of the front and rear telescopic shafts, and a fourth photoelectric switch is provided on the mounting frame.

[0010] By adopting the above-mentioned technical solution, the correction sensor mechanism can drive the second servo motor to drive the correction platform to move based on the deviation of the lithium belt during transmission detected by the fourth photoelectric switch. The correction platform drives the conveying roller bracket, follower roller and the fourth photoelectric switch to move to adapt to tracking and detecting the deviation of the lithium belt.

[0011] Preferably, the passive unwinding mechanism includes an inflatable shaft and a magnetic powder brake arranged in parallel, a first synchronous wheel and synchronous belt assembly is provided on one end of the inflatable shaft, the inflatable shaft is transmission-connected to the magnetic powder brake through the first synchronous wheel and synchronous belt assembly, a second bearing seat is provided on the inflatable shaft, the inflatable shaft is mounted on the movable plate frame through the second bearing seat, a brake mounting plate is provided on the magnetic powder brake, and the magnetic powder brake is mounted on the movable plate frame through the brake mounting plate.

[0012] By adopting the above technical solution, the magnetic powder brake provides a hysteresis braking function. Its operating principle is well known and will not be explained in detail here. The magnetic powder brake is connected to the air shaft via a first synchronous pulley and synchronous belt assembly to decelerate the air shaft's rotation. The passive unwinding mechanism's structural design allows for tension adjustment during the unwinding of the release film roll on the air shaft.

[0013] Preferably, the thickness measuring mechanism includes a thickness gauge for detecting the thickness of the lithium strip, a linear module is provided under the thickness gauge, a third servo motor is provided under one end of the linear module, a second synchronous wheel and synchronous belt assembly is connected between the output end of the third servo motor and one end of the linear module, a base is provided under the linear module, and the base is installed on the movable plate frame.

[0014] A third servo motor is used to drive the second synchronous wheel and synchronous belt assembly to rotate forward and reverse to drive the thickness gauge to move back and forth to detect whether the thickness of the lithium belt is uniform.

[0015] Preferably, the first belt pressing mechanism includes a cylinder, a pressure plate is provided on the output end of the cylinder, a scale is provided on one side of the pressure plate, a cylinder mounting plate is connected to one side of the cylinder, the cylinder mounting plate is installed on the movable plate frame, and the cylinder drives the pressure plate to press the release film onto the first transmission roller group.

[0016] The structure and working principle of the second belt pressing mechanism are the same as those of the first belt pressing mechanism. An optical fiber amplifier is provided on the cylinder mounting plate of the second belt pressing mechanism.

[0017] When the cylinder of the first belt pressing mechanism drives the pressure plate to extend, the release film can be pressed tightly against the first transmission roller group, avoiding the phenomenon that the material roll on the winding and correcting mechanism becomes loose due to the rotational inertia of the material roll on the air shaft continuing to unwind when the lithium tape winding stops. The winding and correcting mechanism can be wound smoothly and tightly and has a good winding effect. At the same time, a ruler is provided on one side of the pressure plate to facilitate the staff to read the offset of the release film or lithium tape from the ruler in real time, thereby facilitating precise correction and adjustment, so that it has the advantages of high correction accuracy and good correction effect.

[0018] Preferably, the first transmission roller group includes a first conveying roller, a second conveying roller and a third conveying roller which are arranged parallel to each other, and the first conveying roller, the second conveying roller and the third conveying roller are all installed on the movable plate frame.

[0019] By adopting the above technical solution, when the release film is unwound from the passive unwinding mechanism and sequentially passes around the first conveying roller, the second conveying roller and the third conveying roller, the first belt pressing mechanism presses the release film against the second conveying roller.

[0020] Preferably, the second transmission roller group includes a first supporting roller, a first tensioning roller and a second supporting roller arranged in parallel, the first supporting roller, the first tensioning roller and the second supporting roller are all installed on the movable plate frame, and the lithium belt passes around the first supporting roller, the first tensioning roller and the second supporting roller in sequence.

[0021] Preferably, the third transmission roller group includes a third supporting roller and a second tensioning roller arranged in parallel, and the third supporting roller and the second tensioning roller are both installed on the movable plate frame. The lithium belt passes around the third supporting roller and the second tensioning roller in sequence, and the second belt pressing mechanism presses the lithium belt onto the second tensioning roller.

[0022] By adopting the above-mentioned technical solution, the cylinder of the second belt pressing mechanism drives the pressure plate to extend and press the lithium belt against the second tensioning roller, which avoids the phenomenon of the lithium belt material roll on the winding and correcting mechanism becoming loose when the lithium belt winding stops, and ensures that the lithium belt is wound flat and tight and the winding effect is good. At the same time, the scale on the pressure plate allows the staff to read the offset of the release film or lithium belt in real time, so as to facilitate the precise correction and adjustment of the release film or lithium belt, so that it has the advantages of high correction accuracy and good correction effect.

[0023] Preferably, the avoidance transmission mechanism includes a fourth servo motor installed on the plate platform, the output end of the fourth servo motor is connected to the second screw rod assembly, and a third linear sliding module and a fourth linear sliding module are respectively provided on both sides of the second screw rod assembly, the third linear sliding module and the fourth linear sliding module are arranged in parallel, and the movable plate frame is respectively connected and installed with the third linear sliding module and the fourth linear sliding module, and the fourth servo motor drives the movable plate frame to slide back and forth on the third linear sliding module and the fourth linear sliding module, and a fifth photoelectric switch, a sixth photoelectric switch and a seventh photoelectric switch are also provided on the plate platform, and the fifth photoelectric switch, the sixth photoelectric switch and the seventh photoelectric switch are arranged in a straight line, and a second light shielding plate is provided on one side of the movable plate frame, and the second light shielding plate is respectively used in conjunction with the fifth photoelectric switch, the sixth photoelectric switch and the seventh photoelectric switch, and the outer sides of the two end portions of the third linear sliding module and the two end portions of the fourth linear sliding module are respectively provided with limit columns for limiting the movement of the movable plate frame.

[0024] By adopting the above-mentioned technical solution, since the second screw assembly is fixedly installed with the movable plate frame, the fourth servo motor of the avoidance transmission mechanism drives the second screw assembly to rotate forward and reverse, which can drive the movable plate frame and the various mechanisms thereon to slide back and forth on the third linear sliding module and the fourth linear sliding module. The fifth photoelectric switch, the sixth photoelectric switch and the seventh photoelectric switch detect the position of the movable plate frame. The distance between the fifth photoelectric switch and the sixth photoelectric switch is the range within which the movable plate frame and the various mechanisms thereon can move to avoid the equipment at the adjacent station. The seventh photoelectric switch is the position where the various mechanisms on the movable plate frame stop and remain stationary. When the lithium strip and the release film are compositely wound, the fourth servo motor drives the movable plate frame and the various mechanisms thereon to move between the fifth photoelectric switch and the sixth photoelectric switch to allow the equipment at the adjacent station to vacate and avoid. The structural design of the avoidance transmission mechanism solves the problem that traditional winding equipment is easily interfered with the open lithium strip extruder die due to its complex structure and inconvenient movement.

[0025] Preferably, a controller or control system is provided for signal control of components such as the avoidance transmission mechanism, thickness measuring mechanism, passive unwinding mechanism, winding correction mechanism, first belt pressing mechanism, second belt pressing mechanism and correction sensor mechanism. The controller is a PLC programmable logic controller. The PLC programmable logic controller can adopt a programmable logic controller of model XDS-40T-D, but is not limited to this.

[0026] It should be noted that the positioning mounting plate and the cylinder mounting plate are both functional descriptions of the mounting plate. The conveyor roller bracket, the mounting positioning shaft, and the front and rear telescopic shafts are functional descriptions of the bracket, the positioning shaft, and the telescopic shaft, respectively. The first photoelectric switch, the second photoelectric switch, the third photoelectric switch, the fourth photoelectric switch, the fifth photoelectric switch, the sixth photoelectric switch, and the seventh photoelectric switch can all adopt the photoelectric switch model BUP-30U, but are not limited to this. The optical fiber amplifier can adopt the optical fiber amplifier model FS-N18N, but is not limited to this. The linear module, the first synchronous wheel and synchronous belt assembly, the second synchronous wheel and synchronous belt assembly, the first screw assembly, the second screw assembly, the first linear sliding module, the second linear sliding module, the third linear sliding module, and the fourth linear sliding module are all commonly used components in mechanical design. Their specific composition structure and working principle are common knowledge and will not be explained in detail here.

[0027] Compared with the existing technology, the beneficial effects of the present invention are:

[0028] 1. A thickness measuring mechanism is provided on the movable plate frame, and the third servo motor of the thickness measuring mechanism drives the thickness gauge to move back and forth to realize automatic detection of whether the thickness of the lithium ribbon is uniform; a passive unwinding mechanism is provided on the movable plate frame to adjust the tension of the release film roll on the inflatable shaft; a correction sensor mechanism is provided to automatically detect the deviation of the lithium ribbon during the transmission process; and a winding correction mechanism is provided to automatically perform intelligent correction on the lithium ribbon and release film wound on the material reel according to the deviation of the lithium ribbon detected by the correction sensor mechanism. The invention has the advantages of high correction accuracy and good correction effect, so as to solve the problem that the traditional lithium ribbon winding equipment does not have an intelligent correction function, which causes the lithium ribbon to be uneven after winding, and the lithium ribbon is easily wrinkled or even damaged.

[0029] 2. It is provided with a first belt pressing mechanism on one side of the first transmission roller group and a second belt pressing mechanism on one side of the third transmission roller group, and the structures of the first belt pressing mechanism and the second belt pressing mechanism are designed. The cylinder of the first belt pressing mechanism drives the pressure plate to press the release film against the first transmission roller group, so as to avoid the phenomenon that the material roll on the winding and correcting mechanism becomes loose due to the rotational inertia of the material roll on the air shaft when the lithium ribbon winding stops; similarly, the cylinder of the second belt pressing mechanism drives the pressure plate to press the lithium ribbon against the second transmission roller group, so as to avoid the phenomenon that the lithium ribbon material roll on the winding and correcting mechanism becomes loose when the lithium ribbon winding stops. It has the advantages of smooth and tight winding and good winding effect, so as to solve the problems that the release film and lithium ribbon are prone to different tightness, poor winding effect and unqualified winding; at the same time, it can read the offset of the release film or lithium ribbon through the scale on the pressure plate to facilitate the correction and adjustment.

[0030] 3. The system provides an avoidance transmission mechanism on the plate. When the lithium ribbon and release film are wound together, the avoidance transmission mechanism moves the movable plate frame and the various mechanisms thereon to a position between the fifth photoelectric switch and the sixth photoelectric switch so as to avoid the equipment at the adjacent station. This solves the problem that traditional winding equipment is easily interfered with the equipment at the adjacent station (such as the lithium ribbon extruder die) due to its complex structure and inconvenient movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] For ease of explanation, the present invention is described in detail with reference to the following preferred embodiments and accompanying drawings.

[0032] Figure 1 This is a three-dimensional diagram of the lithium strip deviation-correcting winder of the present invention.

[0033] Figure 2 This is a three-dimensional diagram of the winding and deviation-correcting mechanism of the lithium strip deviation-correcting winder of the present invention.

[0034] Figure 3 This is a front view of the winding and deviation-correcting mechanism of the lithium strip deviation-correcting winder of the present invention.

[0035] Figure 4 This is a three-dimensional diagram of the winding and correcting mechanism of the lithium strip correcting and winding machine of the present invention without the limiting circular plate and the locking seat.

[0036] Figure 5 This is a three-dimensional diagram of the correction sensor mechanism of the lithium strip correction winder of the present invention.

[0037] Figure 6 This is a three-dimensional diagram of the passive unwinding mechanism of the lithium strip deviation-correcting winder of the present invention.

[0038] Figure 7 This is a three-dimensional diagram of the thickness measuring mechanism of the lithium strip deviation-correcting winder of the present invention.

[0039] Figure 8 It is a three-dimensional diagram of the first belt pressing mechanism or the second belt pressing mechanism of the lithium belt deviation correction and winding machine of the present invention.

[0040] Figure 9 This is the front view of the lithium strip deviation-correcting winder of the present invention.

[0041] Figure 10 This is a three-dimensional diagram of the avoidance transmission mechanism of the lithium strip deviation-correcting winder of the present invention. DETAILED DESCRIPTION

[0042] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0044] In this embodiment, refer to Figures 1 to 10 As shown, the lithium strip deviation correction and winding machine of the present invention includes a plate 1, a avoidance transmission mechanism 2 is provided on the plate 1, a movable plate frame 3 is provided on the avoidance transmission mechanism 2, a thickness measuring mechanism 4, a passive unwinding mechanism 5 and a winding and deviation correction mechanism 6 are respectively provided on the movable plate frame 3, a first transmission roller group 71 is provided between the passive unwinding mechanism 5 and the winding and deviation correction mechanism 6, the release film is led out from the passive unwinding mechanism 5, passes through the first transmission roller group 71 and is led to the winding and deviation correction mechanism 6, a first belt pressing mechanism 81 is provided on one side of the first transmission roller group 71, the first belt pressing mechanism 81 is used in conjunction with the first transmission roller group 71, the first belt pressing mechanism 81 presses the release film on the first transmission roller group 71, and the thickness measuring mechanism A second transmission roller group 72 and a third transmission roller group 73 are respectively provided on both sides of the 4. The third transmission roller group 73 is located between the thickness measuring mechanism 4 and the winding and deflection correcting mechanism 6. A deflection correcting sensor mechanism 9 is provided between the third transmission roller group 73 and the winding and deflection correcting mechanism 6. A second belt pressing mechanism 82 is provided on one side of the third transmission roller group 73. The second belt pressing mechanism 82 cooperates with the third transmission roller group 73. The lithium ribbon passes through the second transmission roller group 72, the thickness measuring mechanism 4 and the third transmission roller group 73 in sequence and is finally led to the winding and deflection correcting mechanism 6. The second belt pressing mechanism 82 presses the lithium ribbon on the third transmission roller group 73. The release film covers the surface of the lithium ribbon. The winding and deflection correcting mechanism 6 corrects and winds the lithium ribbon and the release film.

[0045] In one embodiment, the winding and correcting mechanism 6 includes a first servo motor 61, a first reducer 62 is provided at the output end of the first servo motor 61, a material reel 63 is provided on the outer side of one end of the first reducer 62, a first coupling 64 is connected between the first reducer 62 and one end of the material reel 63, the material reel 63 is sleeved with a first bearing seat 65, and two limiting circular plates 66 are sleeved on the other end of the material reel 63, and locking seats 67 are respectively provided on the two outer sides of the two limiting circular plates 66 facing away from each other.

[0046] In one embodiment, a correction platform 68 is provided under the first bearing seat 65, and a first linear sliding module 691 and a second linear sliding module 692 are provided under the correction platform 68 respectively. The first linear sliding module 691 and the second linear sliding module 692 are arranged in parallel, and a positioning mounting plate 60 is provided under the first linear sliding module 691 and the second linear sliding module 692. A first screw assembly 601 is provided under the positioning mounting plate 60, and the first screw assembly 601 is connected and installed with the correction platform 68. A second servo motor 602 is provided on the outer side of one end of the first screw assembly 601, and a second coupling 603 is connected between the second servo motor 602 and the first screw assembly 601.

[0047] In one embodiment, a light shielding sheet 604 is provided on one side of the correction platform 68, and a first photoelectric switch 605, a second photoelectric switch 606 and a third photoelectric switch 607 are provided on the same side of the positioning mounting plate 60 opposite to the correction platform 68. The first photoelectric switch 605, the second photoelectric switch 606 and the third photoelectric switch 607 are respectively used in conjunction with the light shielding sheet 604.

[0048] In one embodiment, the correction sensor mechanism 9 includes a conveying roller bracket 91 installed on one end of the correction platform 68, and the conveying roller bracket 91 is provided with a follower roller 92 and an installation positioning shaft 93. A front and rear telescopic shaft 94 is provided on one side of the installation positioning shaft 93. The follower roller 92, the installation positioning shaft 93 and the front and rear telescopic shaft 94 are arranged parallel to each other. A positioning clamp 95 is connected between the front and rear telescopic shaft 94 and the installation positioning shaft 93. A linear bearing 96 is provided on the front and rear telescopic shaft 94, and the linear bearing 96 is installed on the movable plate frame 3. A mounting frame 97 is provided on one end of the front and rear telescopic shaft 94, and a fourth photoelectric switch 98 is provided on the mounting frame 97.

[0049] In one embodiment, the passive unwinding mechanism 5 includes an inflatable shaft 51 and a magnetic powder brake 52 arranged in parallel. A first synchronous wheel and synchronous belt assembly 53 is provided on one end of the inflatable shaft 51. The inflatable shaft 51 is transmission-connected to the magnetic powder brake 52 through the first synchronous wheel and synchronous belt assembly 53. A second bearing seat 54 is sleeved on the inflatable shaft 51. The inflatable shaft 51 is installed on the movable plate frame 3 through the second bearing seat 54. A brake mounting plate 55 is provided on the magnetic powder brake 52. The magnetic powder brake 52 is installed on the movable plate frame 3 through the brake mounting plate 55.

[0050] In one embodiment, the thickness measuring mechanism 4 includes a thickness gauge 41 for detecting the thickness of the lithium strip, a linear module 42 is provided below the thickness gauge 41, a third servo motor 43 is provided below one end of the linear module 42, a second synchronous wheel and synchronous belt assembly 44 is connected between the output end of the third servo motor 43 and one end of the linear module 42, a base 45 is provided below the linear module 42, and the base 45 is installed on the movable plate frame 3.

[0051] In one embodiment, the first belt pressing mechanism 81 includes a cylinder 811, a pressure plate 812 is provided on the output end of the cylinder 811, a scale 813 is provided on one side of the pressure plate 812, a cylinder mounting plate 814 is connected to one side of the cylinder 811, the cylinder mounting plate 814 is installed on the movable plate frame 3, a throttle valve 815 is provided on the cylinder 811, and the cylinder 811 drives the pressure plate 812 to press the release film onto the first transmission roller group 71.

[0052] In one embodiment, the structure and working principle of the second belt pressing mechanism 82 are the same as those of the first belt pressing mechanism 81 , and the optical fiber amplifier 10 is provided on the cylinder mounting plate 814 of the second belt pressing mechanism 82 .

[0053] In one embodiment, the first transmission roller group 71 includes a first conveying roller 711, a second conveying roller 712 and a third conveying roller 713 arranged parallel to each other. The first conveying roller 711, the second conveying roller 712 and the third conveying roller 713 are all installed on the movable plate frame 3. The release film is conveyed around the first conveying roller 711, the second conveying roller 712 and the third conveying roller 713 in sequence, and the first belt pressing mechanism 81 presses the release film on the second conveying roller 712.

[0054] In one embodiment, the second transmission roller group 72 includes a first supporting roller 721, a first tensioning roller 722 and a second supporting roller 723 arranged in parallel. The first supporting roller 721, the first tensioning roller 722 and the second supporting roller 723 are all installed on the movable plate frame 3, and the lithium ribbon is transported by passing around the first supporting roller 721, the first tensioning roller 722 and the second supporting roller 723 in sequence.

[0055] In one embodiment, the third transmission roller group 73 includes a third supporting roller 731 and a second tensioning roller 732 arranged in parallel. The third supporting roller 731 and the second tensioning roller 732 are both installed on the movable plate frame 3. The lithium belt is conveyed around the third supporting roller 731 and the second tensioning roller 732 in sequence, and the second belt pressing mechanism 82 presses the lithium belt onto the second tensioning roller 732.

[0056] In one embodiment, the avoidance transmission mechanism 2 includes a fourth servo motor 21 installed on the platen 1, the output end of the fourth servo motor 21 is connected to the second screw assembly 22, and the second screw assembly 22 is provided with a third linear sliding module 23 and a fourth linear sliding module 24 on both sides. The third linear sliding module 23 and the fourth linear sliding module 24 are arranged in parallel, and the movable plate frame 3 is connected and installed with the third linear sliding module 23 and the fourth linear sliding module 24 respectively. The fourth servo motor 21 drives the movable plate frame 3 to move between the third linear sliding module 23 and the fourth linear sliding module. The movable module 24 slides back and forth, and the platform 1 is also provided with a fifth photoelectric switch 25, a sixth photoelectric switch 26 and a seventh photoelectric switch 27. The fifth photoelectric switch 25, the sixth photoelectric switch 26 and the seventh photoelectric switch 27 are arranged in a straight line. A second light-shielding plate 28 is provided on one side of the movable plate frame 3. The second light-shielding plate 28 is used in conjunction with the fifth photoelectric switch 25, the sixth photoelectric switch 26 and the seventh photoelectric switch 27 respectively. The outer sides of the two ends of the third linear sliding module 23 and the outer sides of the two ends of the fourth linear sliding module 24 are respectively provided with limit columns 29 for limiting the movement of the movable plate frame 3.

[0057] In another embodiment, the lithium ribbon deflection correction and rewinding machine operates as follows: the lithium ribbon is sequentially drawn through the second drive roller set 72, the thickness measuring mechanism 4, and the third drive roller set 73 to the rewinding and deflection correction mechanism 6. The leading end of the lithium ribbon is secured to the material reel 63 of the rewinding and deflection correction mechanism 6. Simultaneously, a release film is drawn from a release film roll mounted on the pneumatic shaft 51 of the passive unwinding mechanism 5, passed around the first drive roller set 71 to the rewinding and deflection correction mechanism 6, and coated on the surface of the lithium ribbon on the material reel 63. When the first servo motor 61 of the rewinding and deflection correction mechanism 6 drives the material reel 63 to rotate, the lithium ribbon and release film are deflected and rewound, and the lithium ribbon and release film are automatically drawn and conveyed.

[0058] The magnetic powder brake 52 of the passive unwinding mechanism 5 is connected to the inflatable shaft 51 through the first synchronous wheel and synchronous belt assembly 53 to slow down the rotation of the inflatable shaft 51, so that the tension of the release film roll on the inflatable shaft 51 can be adjusted. When the release film is transmitted from the passive unwinding mechanism 5 into the first transmission roller group 71, the release film is transmitted to the winding and correcting mechanism 6 by passing the first transmission roller 711, the second transmission roller 712 and the third transmission roller 713 of the first transmission roller group 71 in turn. When the cylinder 811 of the first belt pressing mechanism 81 drives the pressure plate 812 to extend, the release film transmitted from its side can be pressed tightly against the second transmission roller 712. The design of the first belt pressing mechanism 81 avoids the situation that the material roll on the winding and correcting mechanism 6 becomes loose due to the inertia of the unwinding rotation of the release film roll on the air shaft 51 when the lithium ribbon and release film winding stops, so that it has the advantages of smooth and tight winding and good winding effect. At the same time, the scale 813 on the pressure plate 812 of the first belt pressing mechanism 81 allows the operator to quickly read the deviation of the release film, thereby facilitating the correction and adjustment of the release film.

[0059] Similarly, when the lithium ribbon is conveyed into the second transmission roller group 72, the lithium ribbon passes through the first feed roller 721, the first tensioning roller 722 and the second feed roller 723 of the second transmission roller group 72 in sequence and is conveyed into the third transmission roller group 73. The first tensioning roller 722 can tension the lithium ribbon conveyed through it to ensure that the lithium ribbon can be tensioned and conveyed.

[0060] When the lithium tape is conveyed from the second feed roller 723 into the thickness measuring mechanism 4, the third servo motor 43 of the thickness measuring mechanism 4 drives the thickness gauge 41 to move back and forth on the linear module 42 through the second synchronous wheel and synchronous belt assembly 44 in turn to automatically detect whether the thickness of the lithium tape is uniform. When the lithium ribbon is transmitted from the thickness measuring mechanism 4 to the third transmission roller group 73, the lithium ribbon is transmitted by passing through the third support roller 731 and the second tensioning roller 732 of the third transmission roller group 73 in turn. When the cylinder 811 of the second belt pressing mechanism 82 drives the pressure plate 812 to extend, the lithium ribbon transmitted from its side can be pressed against the second tensioning roller 732. The design of the second belt pressing mechanism 82 avoids the situation that the material roll on the winding and correcting mechanism 6 becomes loose when the winding of the lithium ribbon and the release film is stopped, so that it has the advantages of smooth and tight winding and good winding effect, and avoids the phenomenon that the lithium ribbon is uneven, easily wrinkled or even damaged after being wound into a roll. At the same time, the scale 813 on the pressure plate 812 of the second belt pressing mechanism 82 enables the operator to quickly read the offset of the lithium ribbon, so as to facilitate the correction and adjustment of the lithium ribbon.

[0061] The correction sensor mechanism 9 detects the deviation of the lithium tape transmitted through it, and the winding correction mechanism 6 can control the second servo motor 602 to start according to the signal or deviation of the deviation detected by the correction sensor mechanism 9 during the transmission of the lithium tape, and the second servo motor 602 drives the correction platform 68 to move. The movement of the correction platform 68 can not only drive the conveying roller bracket 91, the follower roller 92 and the fourth photoelectric switch 98 to move to adapt to the tracking and detection of the deviation of the lithium tape, but also the correction platform 68 can drive the winding shaft located thereon to move back and forth to correct the lithium tape and release film wound on the material reel 63. The correction movement stroke of the correction platform 68 is in the distance between the first photoelectric switch 605 and the second photoelectric switch 606, which realizes automatic intelligent correction of the lithium tape and the release film, so as to solve the problem that the traditional lithium tape winding equipment does not have the function of intelligent correction, resulting in uneven lithium tape material rolls and easy wrinkling or even damage of the lithium tape after the lithium tape is wound into a roll.

[0062] The system also features a clearance drive mechanism 2 installed on the pallet 1. The fourth servo motor 21 of the clearance drive mechanism 2 drives the movable pallet 3 and its various mechanisms to slide back and forth on the third linear slide module 23 and the fourth linear slide module 24. The fifth, sixth, and seventh photoelectric switches 25, 26, and 27 cooperate to detect the position of the movable pallet 3. The distance between the fifth and sixth photoelectric switches 25, 26 defines the distance the movable pallet 3 and its various mechanisms can move to avoid equipment at adjacent workstations. The seventh photoelectric switch 27 indicates the position at which the various mechanisms on the movable pallet 3 stop and remain stationary. After the lithium ribbon and release film are laminated and wound, the movable pallet 3 and its various mechanisms move between the fifth and sixth photoelectric switches 25, 26 to clear the space for equipment at adjacent workstations.

[0063] Its overall structural design implements intelligent deflection correction and adjustment, resulting in smooth and tight winding, high deflection correction accuracy, and excellent deflection correction effects, ensuring a good overall winding effect for the lithium ribbon and release film. This not only addresses the problem of conventional lithium ribbon winding equipment lacking intelligent deflection correction, resulting in uneven winding, wrinkling, and even damage, but also addresses the issues of inconsistent tightness between the release film and lithium ribbon, resulting in poor winding quality and unqualified winding. Furthermore, the avoidance transmission mechanism allows the adjacent equipment to vacate the winding after the lithium ribbon and release film are wound, resolving the problem of conventional winding equipment, which, due to its complex structure and inconvenient movement, easily interferes with the open lithium ribbon extruder die.

[0064] The above embodiment is only an example of the present invention and is not intended to limit the implementation and scope of rights of the present invention. Any technical solution that is identical or equivalent to the content described in the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. Lithium strip correction and winding machine, including a plate, characterized by: The platen is provided with an avoidance transmission mechanism, the avoidance transmission mechanism is provided with a movable plate frame, the movable plate frame is provided with a thickness measuring mechanism, a passive unwinding mechanism and a winding and correcting mechanism, a first transmission roller group is provided between the passive unwinding mechanism and the winding and correcting mechanism, the release film is led out from the passive unwinding mechanism, passes through the first transmission roller group and is led to the winding and correcting mechanism, a first belt pressing mechanism is provided on one side of the first transmission roller group, the first belt pressing mechanism is used in conjunction with the first transmission roller group, the first belt pressing mechanism presses the release film on the first transmission roller group, and second transmission rollers are provided on both sides of the thickness measuring mechanism The third transmission roller group is located between the thickness measuring mechanism and the winding and correcting mechanism. A correction sensor mechanism is provided between the third transmission roller group and the winding and correcting mechanism. A second belt pressing mechanism is provided on one side of the third transmission roller group. The second belt pressing mechanism is used in conjunction with the third transmission roller group. The lithium ribbon passes through the second transmission roller group, the thickness measuring mechanism and the third transmission roller group in sequence and is finally led to the winding and correcting mechanism. The second belt pressing mechanism presses the lithium ribbon on the third transmission roller group. The release film covers the surface of the lithium ribbon. The winding and correcting mechanism corrects and winds the lithium ribbon and the release film.

2. The lithium strip deviation correction and winding machine according to claim 1, characterized in that: The winding and correcting mechanism includes a first servo motor, a first reducer is provided at the output end of the first servo motor, a material reel is provided on the outer side of one end of the first reducer, a first coupling is connected between the first reducer and one end of the material reel, a first bearing seat is provided on the material reel sleeve, and two limiting circular plates are provided on the other end of the material reel, and locking seats are respectively provided on the two outer sides of the two limiting circular plates facing away from each other; A deviation correction platform is provided under the first bearing seat, and a first linear sliding module and a second linear sliding module are respectively provided under the deviation correction platform. The first linear sliding module and the second linear sliding module are arranged in parallel. A positioning mounting plate is provided under the first linear sliding module and the second linear sliding module. A first screw rod assembly is provided under the positioning mounting plate. The first screw rod assembly is connected and installed with the deviation correction platform. A second servo motor is provided on the outer side of one end portion of the first screw rod assembly. A second coupling is connected between the second servo motor and the first screw rod assembly. A shading sheet is provided on one side of the correction platform, and a first photoelectric switch, a second photoelectric switch and a third photoelectric switch are respectively provided on the same side of the positioning mounting plate opposite to the correction platform. The first photoelectric switch, the second photoelectric switch and the third photoelectric switch are respectively used in conjunction with the shading sheet.

3. The lithium ribbon deviation correction and winding machine according to claim 2, characterized in that: The correction sensor mechanism includes a conveying roller bracket installed on one end of the correction platform, the conveying roller bracket is provided with a follower roller and an installation positioning shaft, a front and rear telescopic shaft is provided on one side of the installation positioning shaft, the follower roller, the installation positioning shaft and the front and rear telescopic shafts are arranged parallel to each other, a positioning splint is connected between the front and rear telescopic shafts and the installation positioning shaft, linear bearings are sleeved on the front and rear telescopic shafts, the linear bearings are installed on the moving plate frame, a mounting frame is provided on one end of the front and rear telescopic shafts, and a fourth photoelectric switch is provided on the mounting frame.

4. The lithium strip deviation correction and winding machine according to claim 1, characterized in that: The passive unwinding mechanism includes an inflatable shaft and a magnetic powder brake arranged in parallel. A first synchronous wheel and synchronous belt assembly is provided on one end of the inflatable shaft. The inflatable shaft is transmission-connected to the magnetic powder brake through the first synchronous wheel and synchronous belt assembly. A second bearing seat is sleeved on the inflatable shaft. The inflatable shaft is mounted on the movable plate frame through the second bearing seat. A brake mounting plate is provided on the magnetic powder brake. The magnetic powder brake is mounted on the movable plate frame through the brake mounting plate.

5. The lithium strip deviation-correcting and winding machine according to claim 1, characterized in that: The thickness measuring mechanism includes a thickness gauge for detecting the thickness of the lithium strip, a linear module is provided under the thickness gauge, a third servo motor is provided under one end of the linear module, a second synchronous wheel and synchronous belt assembly is connected between the output end of the third servo motor and one end of the linear module, a base is provided under the linear module, and the base is installed on the movable plate frame.

6. The lithium strip deviation-correcting and winding machine according to claim 1, characterized in that: The first belt pressing mechanism includes a cylinder, a pressure plate is provided on the output end of the cylinder, a scale is provided on one side of the pressure plate, a cylinder mounting plate is connected to one side of the cylinder, and the cylinder mounting plate is installed on the movable plate frame. The cylinder drives the pressure plate to press the release film onto the first transmission roller group; The structure and working principle of the second belt pressing mechanism are the same as those of the first belt pressing mechanism. An optical fiber amplifier is provided on the cylinder mounting plate of the second belt pressing mechanism.

7. The lithium ribbon deviation-correcting and winding machine according to claim 1, characterized in that: The first transmission roller group includes a first conveyor roller, a second conveyor roller and a third conveyor roller arranged parallel to each other. The first conveyor roller, the second conveyor roller and the third conveyor roller are all installed on the movable plate frame. The release film passes around the first conveyor roller, the second conveyor roller and the third conveyor roller, and the first belt pressing mechanism presses the release film on the second conveyor roller.

8. The lithium ribbon deviation-correcting and winding machine according to claim 1, characterized in that: The second transmission roller group includes a first supporting roller, a first tensioning roller and a second supporting roller arranged in parallel. The first supporting roller, the first tensioning roller and the second supporting roller are all installed on the movable plate frame, and the lithium belt passes around the first supporting roller, the first tensioning roller and the second supporting roller in sequence.

9. The lithium ribbon deviation-correcting and winding machine according to claim 1, characterized in that: The third transmission roller group includes a third supporting roller and a second tensioning roller arranged in parallel. The third supporting roller and the second tensioning roller are both installed on the movable plate frame. The lithium belt passes around the third supporting roller and the second tensioning roller in sequence, and the second belt pressing mechanism presses the lithium belt onto the second tensioning roller.

10. The lithium ribbon deviation-correcting and winding machine according to claim 1, characterized in that: The avoidance transmission mechanism includes a fourth servo motor installed on the plate platform, the output end of the fourth servo motor is connected to the second screw rod assembly, and a third linear sliding module and a fourth linear sliding module are respectively provided on both sides of the second screw rod assembly, the third linear sliding module and the fourth linear sliding module are arranged in parallel, and the movable plate frame is respectively connected and installed with the third linear sliding module and the fourth linear sliding module, and the fourth servo motor drives the movable plate frame to slide back and forth on the third linear sliding module and the fourth linear sliding module, and a fifth photoelectric switch, a sixth photoelectric switch and a seventh photoelectric switch are also provided on the plate platform, and the fifth photoelectric switch, the sixth photoelectric switch and the seventh photoelectric switch are arranged in a straight line, and a second light shielding plate is provided on one side of the movable plate frame, and the second light shielding plate is respectively used in conjunction with the fifth photoelectric switch, the sixth photoelectric switch and the seventh photoelectric switch, and the outer sides of both ends of the third linear sliding module and the outer sides of both ends of the fourth linear sliding module are respectively provided with limit columns for limiting the movement of the movable plate frame.

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