A lithium battery PET protective film removal device

Abstract

The present application relates to the field of lithium battery production equipment, and in particular to a lithium battery PET protective film removal device, including a workbench and a laser fixed on the workbench, and also including a moving plate and a carrying plate. The workbench is provided with a moving mechanism for driving the moving plate to move along the X-axis direction and the Y-axis direction, and the workbench is provided with a control unit electrically connected to the moving mechanism and the laser; the top of the moving plate is fixed with a plurality of positioning columns arranged along the X-axis direction, the bottom surface of the carrying plate is provided with positioning grooves plugged and matched with the positioning columns, and the top surface of the carrying plate is provided with a plurality of installation grooves arranged along the X-axis direction and embedded and matched with the aluminum shell. The present application can realize batch processing and production, and try to meet the requirements for production efficiency.

Description

Technical Field

[0001] The present application relates to the field of lithium battery production equipment, and in particular to a lithium battery PET protective film removal device. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and a non-aqueous electrolyte solution. The outside of the lithium battery is usually wrapped with an aluminum shell, and the inner and outer walls of the aluminum shell are covered with a PET protective film.

[0003] The traditional PET protective film pasting method has many steps. The existing PET protective film pasting method is to paste the film before the aluminum shell is stamped and formed, so that a layer of PET protective film is formed on the inner and outer walls of the aluminum shell after stamping and forming, and then the PET protective film at the position where the inner and outer walls of the aluminum shell need to be welded is removed to avoid affecting the welding process of the aluminum shell.

[0004] The Chinese patent with publication number CN108500466A discloses a lithium battery PET protective film removal device, which fixes the aluminum shell by setting a U-shaped card slot body and using a suction cup to adsorb, and exposes the surface of the aluminum shell where the PET protective film needs to be removed, and then removes the PET protective film at the designated position by laser high temperature. By replacing manual labor with a machine, production efficiency is improved and work intensity is reduced.

[0005] However, the existing method of fixing the aluminum shell by setting a U-shaped slot body and cooperating with a suction cup can only fix a single aluminum shell, and cannot achieve batch processing and production, and it is difficult to meet the requirements for production efficiency; therefore, further improvement can be made. Summary of the invention

[0006] In order to realize batch processing and production and meet the requirements of production efficiency as much as possible, the present application provides a lithium battery PET protective film removal device.

[0007] The above-mentioned purpose of the present application is achieved through the following technical solutions:

[0008] A device for removing PET protective film from a lithium battery comprises a workbench and a laser fixed on the workbench, and also comprises a movable plate and a supporting plate. The workbench is provided with a movable mechanism for driving the movable plate to move along the X-axis direction and the Y-axis direction, and the workbench is provided with a control unit electrically connected to the movable mechanism and the laser; a plurality of positioning posts arranged along the X-axis direction are fixed on the top of the movable plate, a positioning groove plugged and matched with the positioning posts is provided on the bottom surface of the supporting plate, and a plurality of mounting grooves arranged along the X-axis direction and embedded and matched with an aluminum shell are provided on the top surface of the supporting plate.

[0009] By adopting the above technical solution, when in use, multiple carrier plates can be prefabricated and used in turn. First, multiple aluminum shells are embedded on the top surface of the same carrier plate, and then the carrier plate is fixed on the top of the mobile plate by plugging the positioning column and the positioning groove. Finally, the control unit controls the laser to emit high-temperature laser according to a certain rule, and at the same time controls the moving mechanism through the control unit to drive the carrier plate to move according to a certain rule, so that the laser high temperature is aligned with the PET protective film at the specified position and the PET protective film is removed. By loading multiple aluminum shells at one time, the laser can remove the PET protective film at the specified positions of multiple aluminum shells at one time, thereby realizing batch processing and production, and meeting the requirements for production efficiency as much as possible.

[0010] Optionally, the supporting plate includes a base plate and an extrusion plate, the positioning groove and the mounting groove are both opened in the base plate, a spherical groove is opened through the middle of the extrusion plate, a rubber ball is embedded in the spherical groove, an extrusion groove adapted to be embedded in the base plate is opened at one end of the extrusion plate, and the extrusion groove and the spherical groove are partially overlapped; the base plate is opened with a strip groove extending along the X-axis direction and connected with the side wall of the mounting groove, the strip groove is embedded with a rubber tube connected to the rubber ball, and the rubber tube is fixed to the wall of the strip groove away from the rubber ball and is in a closed state; the movable plate is provided with a clamping mechanism for driving the base plate to be completely embedded in the extrusion groove and squeeze the rubber ball.

[0011] By adopting the above technical solution, when the clamping mechanism drives the base plate to be completely embedded in the extrusion groove, the base plate squeezes one side of the rubber ball due to the overlapping arrangement of the extrusion groove and the spherical groove, so that the rubber tube elastically expands due to the increase in internal water pressure. Since the strip groove is connected to the side wall of the installation groove, the expanded rubber tube squeezes one side of the aluminum shell, so that the aluminum shell is tightly attached to the side of the installation groove away from the rubber tube. At this time, the aluminum shell can be more firmly embedded on the top surface of the bearing plate under the extrusion of the rubber tube, and it is not easy to shake due to the matching gap between the aluminum shell and the installation groove. At the same time, by using the side of the installation groove away from the rubber tube as the positioning reference, the processing position error caused by the matching gap between the aluminum shell and the installation groove can be reduced, and the processing accuracy can be improved.

[0012] Optionally, the clamping mechanism includes two synchronous gears, two connecting rods, two clamping columns and a clamping spring. The movable plate is provided with a receiving groove on the side facing the extrusion plate. The two synchronous gears are rotatably arranged in the receiving groove, and the two synchronous gears are meshed with each other. One end of the two connecting rods is respectively fixed to the outer periphery of the two synchronous gears, and the two connecting rods are symmetrically arranged. The two clamping columns are respectively fixed to the ends of the two connecting rods away from the synchronous gears, and the two clamping columns are symmetrically arranged. Beveled wedge surfaces are provided on both sides of the end of the extrusion plate away from the base plate, and the two beveled wedge surfaces are symmetrically arranged. The clamping spring is connected between the two connecting rods so that the two clamping columns respectively abut against the two beveled wedge surfaces.

[0013] By adopting the above technical solution, under the tension of the clamping spring, the two connecting rods approach each other to drive the two clamping columns to respectively abut and clamp on the two inclined wedge surfaces, and under the mutual sliding action of the inclined wedge surfaces and the clamping columns, the base plate is pushed to move in the direction close to the extrusion plate, thereby achieving the clamping mechanism pushing the base plate and the extrusion plate to be squeezed against each other, so that the base plate is completely embedded in the extrusion groove and the rubber ball is squeezed.

[0014] Optionally, a separation plate is fixedly provided on one side of the workbench, and balls are rotatably provided on both sides of the separation plate. When the moving mechanism drives the moving plate to the initial position, the two balls respectively abut against the inner sides of the two connecting rods to make the two clamping columns respectively disengage from the two inclined wedge surfaces.

[0015] By adopting the above technical solution, when the moving mechanism drives the moving plate to move to the initial position, the two balls respectively abut against the inner sides of the two connecting rods to push the two connecting rods to expand each other to overcome the force of the clamping springs, so that the two clamping columns are respectively separated from the two inclined wedge surfaces, thereby realizing automatic unlocking of the clamping mechanism, allowing the staff to directly remove the load-bearing plate from the moving plate.

[0016] Optionally, the moving mechanism includes a slide rail extending along the X-axis direction, a lateral moving component and a longitudinal moving component, the lateral moving component is installed on the slide rail and is used to drive the moving plate to move along the X-axis direction, and the longitudinal moving component is installed on the workbench and is used to drive the slide rail to move along the Y-axis direction.

[0017] By adopting the above technical solution, the lateral moving component can drive the moving plate to move along the X-axis direction, and the longitudinal moving component can drive the slide rail to move along the Y-axis direction, thereby driving the moving plate to move along the Y-axis direction, and then the moving mechanism drives the moving plate to move along the X-axis direction and the Y-axis direction.

[0018] Optionally, a sensing component is provided inside the carrier plate and is arranged one-to-one with the installation grooves; the sensing component includes an infrared transmitter and an infrared receiver, and the infrared transmitter and the infrared receiver are respectively embedded in the two side walls of the installation groove that are opposite to each other; a signal processing unit is provided inside the carrier plate, and the infrared transmitter and the infrared receiver are respectively connected to the signal processing unit, and the signal processing unit is wirelessly connected to the control unit.

[0019] By adopting the above technical solution, when the aluminum shell is not installed in the installation groove, there is no obstruction between the infrared receiver and the infrared transmitter, and the infrared receiver can smoothly receive the infrared signal of the infrared transmitter and transmit the signal to the signal processing unit. The signal processing unit wirelessly transmits the signal to the control unit, so that the control unit can control the moving mechanism and the laser, ignore the corresponding installation groove, and try to avoid damage to the carrier plate caused by the high-temperature laser.

[0020] Optionally, a magnetic unit is embedded in the movable plate, and the magnetic unit is magnetically matched with the supporting plate.

[0021] By adopting the above technical solution, the magnetic unit and the carrying plate are magnetically matched, so that the carrying plate can be more stably installed on the top of the moving plate.

[0022] Optionally, the workbench is provided with a suction mechanism; the suction mechanism comprises a suction cup located below the moving mechanism and arranged with its opening facing upward, the bottom of the suction cup is connected to an exhaust fan, and the air outlet of the exhaust fan is connected to an industrial waste gas treatment device.

[0023] By adopting the above technical solution, when the high-temperature laser is used to remove the PET protective film at a designated position, the industrial gas generated can be sucked through the suction cup and the exhaust fan to the industrial waste gas treatment device for treatment, thereby improving the environmental friendliness of the equipment.

[0024] In summary, this application at least includes the following beneficial technical effects:

[0025] When in use, multiple carrier plates can be prefabricated and used in turn. First, multiple aluminum shells are embedded on the top surface of the same carrier plate, and then the carrier plate is fixed on the top of the mobile plate by plugging the positioning column and the positioning groove. Finally, the control unit controls the laser to emit high-temperature laser according to a certain rule, and at the same time, the control unit controls the moving mechanism to drive the carrier plate to move according to a certain rule, so that the laser high temperature is aligned with the PET protective film at the specified position and the PET protective film is removed. By loading multiple aluminum shells at one time, the laser can remove the PET protective film at the specified positions of multiple aluminum shells at one time, thereby realizing batch processing and production, and meeting the requirements for production efficiency as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall cross-sectional structure of this application.

[0027] Figure 2 This is a partial cross-sectional structural schematic diagram of the positional relationship between the movable plate and the supporting plate of the present application.

[0028] Figure 3 It is a top view of the carrier plate of the present application.

[0029] Figure 4 It is a schematic cross-sectional view of the load-bearing plate of the present application in a locked state.

[0030] Figure 5 It is a schematic diagram of the cross-sectional structure of the carrier plate of the present application in the unlocked state.

[0031] Figure 6 This is a schematic diagram of the partial cross-sectional structure of the clamping mechanism for displaying the present application.

[0032] Explanation of the reference numerals: 0, aluminum shell; 1, workbench; 2, laser; 3, moving plate; 31, positioning column; 32, receiving groove; 33, magnetic unit; 4, bearing plate; 41, base plate; 42, extrusion plate; 421, inclined wedge surface; 43, positioning groove; 44, installation groove; 45, spherical groove; 46, rubber ball; 47, extrusion groove; 48, strip groove; 49, rubber tube; 5, moving mechanism; 51, slide rail; 52, lateral moving component; 53, longitudinal moving component; 6, control unit; 7, clamping mechanism; 71, synchronous gear; 72, connecting rod; 73, clamping column; 74, clamping spring; 8, separation plate; 81, ball; 9, sensing component; 91, infrared transmitter; 92, infrared receiver; 93, signal processing unit; 10, suction mechanism; 101, suction cup; 102, exhaust fan; 103, industrial waste gas treatment device. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] The embodiment of the present application discloses a device for removing the PET protective film of a lithium battery.

[0035] Reference Figure 1 , 2 The lithium battery PET protective film removal equipment includes a workbench 1, a laser 2, a movable plate 3 and a supporting plate 4; wherein the laser 2 is fixedly mounted directly above the workbench 1 through a preset bracket, and the laser 2 can emit a high-temperature laser between the melting point of the PET protective film and the melting point of the aluminum shell 0, and utilizes the high-temperature laser to remove the PET protective film at a designated position.

[0036] The moving plate 3 is arranged on the top of the workbench 1, and a moving mechanism 5 for driving the moving plate 3 to move along the X-axis direction and the Y-axis direction is provided on the top of the workbench 1; specifically, the moving mechanism 5 includes a slide rail 51, a lateral moving assembly 52 and a longitudinal moving assembly 53; wherein the slide rail 51 is extended and arranged along the X-axis direction, and the bottom of the moving plate 3 is slidably arranged on the slide rail 51; the lateral moving assembly 52 includes a lateral screw rod and a lateral motor, the lateral screw rod is extended and arranged along the X-axis direction, the lateral screw rod is rotatably arranged on the slide rail 51, and the lateral screw rod is threadedly connected to the bottom of the moving plate 3, and the lateral motor is fixedly arranged on the slide rail 51. One end of the slide rail 51, and the output shaft of the horizontal motor is coaxially connected with one end of the horizontal screw rod; the longitudinal moving component 53 includes two longitudinal screw rods, a synchronous shaft and a longitudinal motor, the two longitudinal screw rods are both extended and arranged along the Y-axis direction, the two longitudinal screw rods are both rotatably arranged on the workbench 1, and the two longitudinal screw rods are respectively threadedly connected to both sides of the slide rail 51, the synchronous shaft is extended and arranged along the X-axis direction, the synchronous shaft is rotatably arranged on the workbench 1, and the synchronous shaft and the two longitudinal screw rods are connected through a preset transmission structure, the longitudinal motor is fixed on the workbench 1, and the output shaft of the longitudinal motor is coaxially connected with one end of the longitudinal screw rod. In this embodiment, the transmission structure adopts the method of active bevel gear and driven bevel gear to realize the transmission connection. The horizontal moving component 52 can realize the driving movement plate 3 to move along the X-axis direction, and the longitudinal moving component 53 can realize the driving movement of the slide rail 51 along the Y-axis direction, thereby driving the moving plate 3 to move along the Y-axis direction, and then realizing that the moving mechanism 5 drives the moving plate 3 to move along the X-axis direction and the Y-axis direction.

[0037] The top of the movable plate 3 is integrally formed with three positioning posts 31 which are circular in cross section and arranged along the X-axis direction. The bottom surface of the supporting plate 4 is provided with three positioning grooves 43 which are circular in cross section and arranged along the X-axis direction. The three positioning grooves 43 are coaxially arranged with the three positioning posts 31, and the three positioning grooves 43 are respectively plugged and matched with the three positioning posts 31, so that when the movable mechanism 5 drives the movable plate 3 to move along the X-axis direction and the Y-axis direction, the supporting plate 4 moves synchronously with the movable plate 3.

[0038] Reference Figure 2 , 3 4. The top surface of the carrier plate 4 is provided with eight groups of mounting grooves 44 arranged along the X-axis direction, each group of mounting grooves 44 includes two mounting grooves 44 arranged at intervals from each other, and any mounting groove 44 is embedded and adapted with the aluminum shell 0, so that the carrier plate 4 can load sixteen array-arranged aluminum shells 0 at one time.

[0039] A control unit 6 is provided inside the workbench 1. The control unit 6 in this embodiment uses a single-chip microcomputer as the main control chip, and its model is STC89C51. The control unit 6 and the moving mechanism 5, and the control unit 6 and the laser 2 are electrically connected through preset wires, so that the control unit 6 can control the moving mechanism 5 to drive the carrier plate 4 to move according to a certain rule, and the control unit 6 can control the laser 2 to emit high-temperature laser according to a certain rule.

[0040] When in use, multiple carrier plates 4 can be prefabricated and used in turn. First, multiple aluminum shells 0 are embedded on the top surface of the same carrier plate 4, and then the carrier plate 4 is fixed on the top of the moving plate 3 by plugging the positioning column 31 and the positioning groove 43. Finally, the control unit 6 controls the laser 2 to emit high-temperature laser according to a certain rule, and at the same time, the control unit 6 controls the moving mechanism 5 to drive the carrier plate 4 to move according to a certain rule, so that the laser high temperature is aligned with the PET protective film at the specified position and the PET protective film is removed. By loading multiple aluminum shells 0 at one time, the laser 2 can remove the PET protective film at the specified positions of multiple aluminum shells 0 at one time, thereby realizing batch processing and production, and meeting the requirements for production efficiency as much as possible.

[0041] Reference Figure 3 , 4 5. In this embodiment, the bearing plate 4 includes a base plate 41 and an extrusion plate 42; wherein the mounting groove 44 is provided on the top surface of the base plate 41, the positioning groove 43 is provided on the bottom surface of the base plate 41, a spherical groove 45 is provided through the middle of the extrusion plate 42, a rubber ball 46 is embedded in the spherical groove 45, the top and bottom of the rubber ball 46 are exposed to the extrusion plate 42, the rubber ball 46 is a hollow spherical structure, and the inside of the rubber ball 46 is full of water; an extrusion groove 47 is provided at one end of the extrusion plate 42, and the extrusion groove 47 is embedded in one end of the base plate 41 The base plate 41 is provided with a strip groove 48 extending along the X-axis direction in the middle, and the strip groove 48 passes through the middle of the plurality of mounting grooves 44, and the strip groove 48 is connected to the side wall of the middle of each mounting groove 44; a rubber tube 49 is embedded in the strip groove 48, and the rubber tube 49 is a hollow tubular structure, and the inside of the rubber tube 49 is full of water, one end of the rubber tube 49 is connected to the rubber ball 46, and the other end is in a closed state, and the other end is fixed at the end of the groove wall of the strip groove 48. The movable plate 3 is provided with a clamping mechanism 7, and the clamping mechanism 7 can be used to drive the base plate 41 and the extrusion plate 42 to squeeze each other, so that the base plate 41 is completely embedded in the extrusion groove 47.

[0042] When the clamping mechanism 7 drives the base plate 41 to be completely embedded in the extrusion groove 47, the extrusion groove 47 and the ball groove 45 are partially overlapped, so that the base plate 41 squeezes one side of the rubber ball 46, so that the rubber tube 49 elastically expands due to the increase in internal water pressure. Since the strip groove 48 is connected to the side wall of the installation groove 44, the expanded rubber tube 49 squeezes one side of the aluminum shell 0, so that the aluminum shell 0 is closely attached to the side of the installation groove 44 away from the rubber tube 49. At this time, the aluminum shell 0 can be more firmly embedded on the top surface of the carrier plate 4 under the extrusion of the rubber tube 49, and it is not easy to shake due to the matching gap between the aluminum shell 0 and the installation groove 44. At the same time, by using the side of the installation groove 44 away from the rubber tube 49 as the positioning reference, the processing position error caused by the matching gap between the aluminum shell 0 and the installation groove 44 can be reduced, and the processing accuracy can be improved.

[0043] Reference Figure 1 , 2 6. In this embodiment, the clamping mechanism 7 includes two synchronous gears 71, two connecting rods 72, two clamping columns 73 and a clamping spring 74; wherein, the movable plate 3 is provided with a receiving groove 32 on the side facing the extrusion plate 42, and the two synchronous gears 71 are both rotatably arranged in the receiving groove 32 through a preset central axis; one end of the two connecting rods 72 is respectively fixed to the outer periphery of the two synchronous gears 71, and the two connecting rods 72 are symmetrically arranged; the two clamping columns 73 are respectively vertically fixed to the ends of the two connecting rods 72 away from the synchronous gears 71 , and the two clamping columns 73 are arranged symmetrically; the two synchronous gears 71 are meshed with each other, so that the two synchronous gears 71 can rotate synchronously in opposite directions, so that the two connecting rods 72 and the two clamping columns 73 always maintain a symmetrical arrangement; the clamping spring 74 is a tension spring, and the two ends of the clamping spring 74 are respectively fixedly connected to the middle parts of the two connecting rods 72; both sides of the extrusion plate 42 away from the base plate 41 are provided with oblique wedge surfaces 421, the two oblique wedge surfaces 421 are symmetrically arranged, and the two clamping columns 73 are respectively abutted against the two oblique wedge surfaces 421.

[0044] Under the pulling force of the clamping spring 74, the two connecting rods 72 approach each other to drive the two clamping columns 73 to respectively abut and clamp on the two inclined wedge surfaces 421, and under the mutual sliding action of the inclined wedge surfaces 421 and the clamping columns 73, the base plate 41 is pushed to move in the direction close to the extrusion plate 42, thereby achieving the clamping mechanism 7 pushing the base plate 41 and the extrusion plate 42 to be squeezed against each other, so that the base plate 41 is completely embedded in the extrusion groove 47 and squeezes the rubber ball 46.

[0045] In this embodiment, a separation plate 8 is fixedly provided on one side of the workbench 1, and the separation plate 8 is extended along the X-axis direction. Rolling grooves are opened on both sides of one end of the separation plate 8, and balls 81 exposed from the rolling grooves are rotatably arranged in the rolling grooves. When the longitudinal moving component 53 drives the slide rail 51 to move to the initial position along the Y-axis direction, and the transverse moving component 52 drives the moving plate 3 to move to the initial position along the X-axis direction, the two balls 81 respectively abut against the inner sides of the two connecting rods 72 to push the two connecting rods 72 to overcome the force of the clamping springs 74 and expand each other, so that the two clamping columns 73 are respectively separated from the two inclined wedge surfaces 421, thereby realizing the automatic unlocking of the clamping mechanism 7, so that the staff can directly remove the supporting plate 4 from the moving plate 3.

[0046] Reference Figure 1 , 4 5. In this embodiment, the inside of the carrier plate 4 is provided with a sensing component 9 which is arranged one by one with the installation groove 44; the sensing component 9 includes an infrared transmitter 91 and an infrared receiver 92, and the infrared transmitter 91 and the infrared receiver 92 are respectively embedded in the two side walls of the installation groove 44 which are arranged opposite to each other, and the infrared transmitter 91 and the infrared receiver 92 are aligned with each other, and the inside of the carrier plate 4 is provided with a signal processing unit 93, and the signal processing unit 93 adopts a signal processor in the prior art, which will not be described in detail here. The infrared transmitter 91 and the infrared receiver 92 of each group of sensing components 9 are electrically connected to the signal processing unit 93 through a preset wire; the signal processing unit 93 is wirelessly connected to the control unit 6, and the wireless connection between the signal processing unit 93 and the control unit 6 is also the prior art, which will not be described in detail here.

[0047] When the aluminum shell 0 is not installed in the installation groove 44, there is no obstruction between the infrared receiver 92 and the infrared transmitter 91, and the infrared receiver 92 can smoothly receive the infrared signal of the infrared transmitter 91 and transmit the signal to the signal processing unit 93. The signal processing unit 93 wirelessly transmits the signal to the control unit 6, so that the control unit 6 can control the moving mechanism 5 and the laser 2, ignore the corresponding installation groove 44, and try to avoid the high-temperature laser from damaging the supporting plate 4.

[0048] Reference Figure 1 , 2 In this embodiment, a magnetic unit 33 is embedded inside the movable plate 3. The magnetic unit 33 in this embodiment is a permanent magnet. The magnetic unit 33 cooperates with the supporting plate 4 by magnetic attraction, so that the supporting plate 4 can be more stably installed on the top of the movable plate 3.

[0049] In this embodiment, the workbench 1 is provided with a suction mechanism 10; the suction mechanism 10 includes a suction cup 101, an exhaust fan 102 and an industrial waste gas treatment device 103; wherein, the industrial waste gas treatment device 103 is fixedly mounted on one side of the workbench 1, and the industrial waste gas treatment device 103 adopts an industrial waste gas treatment device in the prior art, which will not be repeated here; the suction cup 101 is located below the moving mechanism 5, and the suction cup 101 is fixedly mounted on the workbench 1, and the opening of the suction cup 101 is arranged upward; the exhaust fan 102 is fixedly mounted inside the workbench 1, and the air inlet of the exhaust fan 102 is connected to the bottom of the suction cup 101, and the air outlet of the exhaust fan 102 is connected to the industrial waste gas treatment device 103.

[0050] When the high-temperature laser is used to remove the PET protective film at the designated position, the generated industrial gas can be sucked through the suction cup 101 and the exhaust fan 102 to the industrial waste gas treatment device 103 for treatment, thereby improving the environmental friendliness of the equipment.

[0051] Implementation principle: When in use, multiple carrier plates 4 can be prefabricated and used in turn. First, multiple aluminum shells 0 are embedded on the top surface of the same carrier plate 4, and then the carrier plate 4 is fixed on the top of the moving plate 3 by plugging the positioning column 31 and the positioning groove 43. Finally, the control unit 6 controls the laser 2 to emit high-temperature laser according to a certain rule, and at the same time, the control unit 6 controls the moving mechanism 5 to drive the carrier plate 4 to move according to a certain rule, so that the laser high temperature is aligned with the PET protective film at the specified position and the PET protective film is removed. By loading multiple aluminum shells 0 at one time, the laser 2 can remove the PET protective film at the specified positions of multiple aluminum shells 0 at one time, thereby realizing batch processing and production, and meeting the requirements for production efficiency as much as possible.

Claims

1. A device for removing a PET protective film from a lithium battery, comprising a workbench (1) and a laser (2) fixed to the workbench (1), characterized in that: The machine also includes a movable plate (3) and a supporting plate (4), wherein the workbench (1) is provided with a movable mechanism (5) for driving the movable plate (3) to move along the X-axis direction and the Y-axis direction, and the workbench (1) is provided with a control unit (6) electrically connected to the movable mechanism (5) and the laser (2); a plurality of positioning columns (31) arranged along the X-axis direction are fixed on the top of the movable plate (3); a positioning groove (43) adapted to be plugged into the positioning columns (31) is provided on the bottom surface of the supporting plate (4); a plurality of mounting grooves (44) arranged along the X-axis direction and adapted to be embedded in the aluminum shell (0) are provided on the top surface of the supporting plate (4); the supporting plate (4) includes a base plate ( 41) and an extrusion plate (42), the positioning groove (43) and the installation groove (44) are both opened on the base plate (41), a spherical groove (45) is opened through the middle of the extrusion plate (42), a rubber ball (46) is embedded in the spherical groove (45), and an extrusion groove (47) is opened at one end of the extrusion plate (42) and is embedded and adapted to the base plate (41), and the extrusion groove (47) and the spherical groove (45) are partially overlapped; the base plate (41) is opened with a strip groove (48) extending along the X-axis direction and connected to the side wall of the installation groove (44), the strip groove (48) is embedded with a rubber tube (49) connected to the rubber ball (46), the The end of the rubber tube (49) away from the rubber ball (46) is fixed to the wall of the strip groove (48) and is in a closed state; the movable plate (3) is provided with a clamping mechanism (7) for driving the base plate (41) and the extrusion plate (42) to squeeze each other, so that the base plate (41) is completely embedded in the extrusion groove (47) and the rubber ball (46) is squeezed; the clamping mechanism (7) includes two synchronous gears (71), two connecting rods (72), two clamping columns (73) and a clamping spring (74); the movable plate (3) is provided with a receiving groove (32) on the side facing the extrusion plate (42), the two synchronous gears (71) are both rotatably arranged in the receiving groove (32), and the two The synchronous gears (71) are meshed with each other, one end of the two connecting rods (72) is respectively fixed on the outer periphery of the two synchronous gears (71), and the two connecting rods (72) are symmetrically arranged, and the two clamping columns (73) are respectively fixed on the ends of the two connecting rods (72) away from the synchronous gears (71), and the two clamping columns (73) are symmetrically arranged; both sides of the end of the extrusion plate (42) away from the base plate (41) are provided with inclined wedge surfaces (421), and the two inclined wedge surfaces (421) are symmetrically arranged, and the clamping spring (74) is connected between the two connecting rods (72) to make the two clamping columns (73) respectively abut against the two inclined wedge surfaces (421);A separation plate (8) is fixedly provided on one side of the workbench (1), and balls (81) are rotatably provided on both sides of the separation plate (8). When the moving mechanism (5) drives the moving plate (3) to the initial position, the two balls (81) respectively abut against the inner sides of the two connecting rods (72), so that the two clamping columns (73) are respectively separated from the two inclined wedge surfaces (421).

2. The device for removing the PET protective film of a lithium battery according to claim 1, characterized in that: The moving mechanism (5) comprises a slide rail (51) extending along the X-axis direction, a transverse moving component (52) and a longitudinal moving component (53); the transverse moving component (52) is mounted on the slide rail (51) and is used to drive the moving plate (3) to move along the X-axis direction; the longitudinal moving component (53) is mounted on the workbench (1) and is used to drive the slide rail (51) to move along the Y-axis direction.

3. The device for removing the PET protective film of a lithium battery according to claim 1, characterized in that: The carrier plate (4) is provided with a sensing assembly (9) arranged in a one-to-one correspondence with the mounting grooves (44); the sensing assembly (9) includes an infrared transmitter (91) and an infrared receiver (92), and the infrared transmitter (91) and the infrared receiver (92) are respectively embedded in two opposite side walls of the mounting groove (44); the carrier plate (4) is provided with a signal processing unit (93), and the infrared transmitter (91) and the infrared receiver (92) are respectively connected to the signal processing unit (93), and the signal processing unit (93) is wirelessly connected to the control unit (6).

4. The device for removing the PET protective film of a lithium battery according to claim 1, characterized in that: A magnetic unit (33) is embedded in the movable plate (3), and the magnetic unit (33) is magnetically matched with the supporting plate (4).

5. The device for removing the PET protective film of a lithium battery according to claim 1, characterized in that: The workbench (1) is provided with a suction mechanism (10); the suction mechanism (10) comprises a suction cup (101) located below the moving mechanism (5) and arranged with its opening facing upwards; the bottom of the suction cup (101) is connected to an exhaust fan (102); and the air outlet of the exhaust fan (102) is connected to an industrial waste gas treatment device (103).

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