A power battery cell protection film laser die-cutting device

Abstract

The application relates to the technical field of laser die cutting of power battery protection materials, in particular to a power battery cell protection film laser die cutting equipment, which comprises a machine box and a bearing plate in the machine box, a guide rail assembly is arranged in the bearing plate, a laser assembly is arranged in the machine box, the laser assembly comprises a terminal part, the terminal part comprises a blowing nozzle, the terminal part is assembled on the output end of the guide rail assembly, and a calibration assembly is assembled on the terminal part, the calibration assembly can coaxially verify the light beam output by the terminal part and the blowing nozzle; the power battery cell protection film laser die cutting equipment can realize high-quality laser die cutting of protection films, foam and other materials, can verify the coaxiality of the light beam and the blowing nozzle, and can improve the die cutting quality.

Description

TECHNICAL FIELD

[0001] The application relates to the laser die-cutting technical field of power battery protection materials, in particular to a power battery cell protection film laser die-cutting device. BACKGROUND

[0002] A power battery cell needs to be externally pasted with a protection sheet, including a foam, a protection film, mica, a PET sheet and double-sided adhesive tape and the like, and most of the materials are soft and have heat insulation properties.

[0003] In the prior art, the protection film, the foam, the PET sheet and the mica sheet are gradually cut from a roll by a die cutter, but the die cutter, the sheet and waste treatment limit, such as the adhesion of waste and the extensibility of the soft sheet, can reduce the die cutting efficiency. SUMMARY

[0004] The application provides a power battery cell protection film laser die-cutting device, which can realize high-quality laser die cutting of protection films and foams and can verify the coaxiality of a light beam and a blowing nozzle to improve the die cutting quality.

[0005] To achieve the above object, the application provides the following technical scheme.

[0006] A power battery cell protection film laser die-cuting device comprises:

[0007] A machine case and a bearing plate inside the machine case, wherein the bearing plate is internally provided with a guide rail assembly;

[0008] A laser assembly built in the machine case, wherein the laser assembly comprises a terminal part, and the terminal part comprises a blowing nozzle;

[0009] The terminal part is assembled on the output end of the guide rail assembly;

[0010] A calibration assembly is assembled on the terminal part, and the calibration assembly can verify the coaxiality of the light beam and the blowing nozzle output by the terminal part.

[0011] Optionally, the laser assembly further comprises a laser installed on the bearing plate, a beam expander and three reflecting parts, one of the reflecting parts is assembled on the terminal part, the terminal part further comprises a focusing mirror installed on the reflecting part, the blowing nozzle is located at the output end of the focusing mirror, the beam expander is assembled between the laser and one of the reflecting parts, and the remaining one of the reflecting parts serves as a transfer part, and the laser emitted by the laser passes through the beam expander, the three reflecting parts, the focusing mirror and the blowing nozzle in sequence.

[0012] Optionally, the guide rail assembly is composed of an X-direction guide rail and two parallel Y-direction guide rails, the X-direction guide rail is slidably arranged on the top of the two Y-direction guide rails, and an assembling block is fixedly arranged on the output end of the X-direction guide rail.

[0013] Optionally, the checking assembly comprises a tray which can move to the position right below the blowing nozzle, a checking box is rotatably arranged on the top of the tray, a detection cavity is formed in the checking box, a light channel is formed in the top of the checking box, the light channel is coaxial with the blowing nozzle at this time, a laser power meter is arranged in the detection cavity, a photosensitive sheet is rotatably arranged in the detection cavity between the laser power meter and the light channel, a plurality of light transmission holes are formed in the photosensitive sheet, and the light transmission holes, the blowing nozzle, the light channel and the laser power meter are coaxially designed.

[0014] Optionally, a limiting rotating limiting ring is arranged in the detection cavity, a worm gear groove is formed in the outer wall of the limiting ring, a worm is rotatably arranged in the detection cavity and engaged with the worm gear groove, one end of the worm penetrates out of the checking box, an embedding groove is formed in the annular inner wall of the limiting ring, the photosensitive sheet is arranged in the embedding groove, and a shear pin is arranged between the limiting ring and the photosensitive sheet.

[0015] Optionally, an arc-shaped plate is fixedly arranged on the top of the checking box, the arc-shaped plate is a semicircular structure, a sponge part is arranged on the inner wall of the arc-shaped plate, an elastic part and a liquid supply part are further arranged on the inner wall of the arc-shaped plate, the elastic part can make the sponge part abut against and contact the blowing nozzle, and the liquid supply part can supply cleaning alcohol to the sponge part.

[0016] Optionally, the elastic part comprises a semi-annular constraint air bag, the constraint air bag has an outer ring constraint part and an inner ring extension part, a liquid storage tank is arranged on the inner wall of the arc-shaped plate, the outer ring constraint part is fixedly connected with the liquid storage tank, and the inner ring extension part is fixedly connected with the outside of the sponge part, the constraint air bag can be inflated and extended towards the sponge part when the internal air pressure of the constraint air bag is increased, and a gas source which can be injected into the constraint air bag is included.

[0017] Optionally, the liquid supply part comprises cleaning alcohol filled in the liquid storage tank, the liquid storage tank is an L-shaped structure, the part of the liquid storage tank in contact with the inner ring extension part is designed as a squeezing part, part of the outer wall of the liquid storage tank is in contact with the sponge part, a one-way needle is arranged on the liquid storage tank, the one-way needle is designed to flow into the sponge part in one direction, and the alcohol in the liquid storage tank can be injected into the sponge part through the one-way needle when the squeezing part is deformed.

[0018] Optionally, a rotating shaft is arranged through the tray, a drive for rotating the shaft at a constant speed is fixedly installed on the bottom of the tray, an assembling plate is arranged on the assembling block, a support is rotatably installed on the assembling plate, the support is fixedly connected with the tray, and the light channel is coaxial with the air blowing nozzle when the support rotates to a preset position.

[0019] Optionally, a load plate is installed on the bottom of the bearing plate, a plurality of air holes are designed on the load plate, and a controller for controlling the lifting of the bearing plate is installed in the cabinet.

[0020] The application provides a power battery cell protection film laser die-cutting equipment, which has the following beneficial effects:

[0021] I. Through cooperation of the guide rail assembly and the laser assembly, laser cutting can be applied to die-cutting of protection films and foam, die-cutting quality is improved, and the problem that the die-cutting tool directly presses on the cutting seam to cause material deformation is avoided.

[0022] II. Through coaxial design of the light transmission hole, the air blowing nozzle, the light channel and the laser power meter, the light beam L will pass through the light channel and the light transmission hole in sequence to reach the surface of the laser power meter, the laser power meter can detect the light beam L, so that it is determined that the light beam L is coaxial with the center line of the air blowing nozzle; secondly, when the light beam L is not coaxial with the center line of the air blowing nozzle, the position of the light beam L and the light transmission hole is offset, so that the light beam L is blocked by the photosensitive sheet, and the photosensitive sheet forms a light spot at the contact point after receiving the light beam L, at this time, it can be determined that the light beam L is not coaxial with the center line of the air blowing nozzle, and adjustment is needed, and the position of the light spot can also be used as a guide for adjusting the position of the reflecting part.

[0023] III. Through cooperation of the arc-shaped plate, the sponge part and the elastic part, the outer wall of the sponge part can be attached to the port of the air blowing nozzle, so that the cleaning alcohol in the sponge part can soak the port of the air blowing nozzle, and the arc-shaped plate can rotate on the top of the tray, so that the sponge part can rub against the port of the air blowing nozzle, so that slag and other substances can be treated, and the port of the air blowing nozzle can be cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is an external three-dimensional structure schematic view of the application;

[0025] Figure 2 It is a structure schematic view of the guide rail assembly and the laser assembly in the application;

[0026] Figure 3 It is a structure schematic view between the assembling block and the terminal part in the application;

[0027] Figure 4It is a schematic diagram of the three-dimensional structure of the terminal part in the application;

[0028] Figure 5 It is a schematic diagram of the internal cross-section of the terminal part in the application;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the proofreading assembly in the application;

[0030] Figure 7 It is a schematic diagram of the internal three-dimensional structure of the proofreading assembly in the application;

[0031] Figure 8 It is a schematic diagram of the internal cross-section of the proofreading assembly in the application;

[0032] Figure 9 It is a structural diagram of the restraining air bag, sponge part and liquid storage tank in the application.

[0033] In the figure: 1, case; 2, bearing plate; 3, Y guide rail; 4, reflection part; 5, beam expander; 6, laser; 7, assembly block; 8, assembly plate; 9, X guide rail; 10, focusing mirror; 11, air blowing nozzle; 12, arc plate; 13, verification box; 14, bracket; 15, tray; 16, photosensitive sheet; 17, limiting ring; 18, light transmission hole; 19, laser power meter; 20, worm; 21, liquid storage tank; 22, restraining air bag; 23, sponge part; 24, one-way needle; 25, load plate. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0035] Please refer to Figures 1 to 9 The application provides a kind of power battery cell protection film laser die cutting equipment, comprising:

[0036] Case 1 and the bearing plate 2 in its interior, the inside of bearing plate 2 is installed with guide rail assembly;Laser assembly is built-in in case 1, and laser assembly includes terminal part, and terminal part includes air blowing nozzle 11;Terminal part is assembled on the output end of guide rail assembly;Proofreading assembly is assembled on terminal part, and proofreading assembly can be coaxial verification to light beam output by terminal part and air blowing nozzle 11.

[0037] In the prior art, when the numerical control cutter cuts the protective film, foam and PET sheet, etc., the cutter is often contaminated or disturbed, resulting in that the die cutting production cannot be continuously carried out, or in the process of production, the die cutting quality cannot be improved due to the influence of material, and in the application, the laser die cutting is applied to the cutting of the protective film and foam, etc., which can improve the die cutting quality, wherein the scheme controls the displacement of the terminal part of the laser assembly by designing the guide rail assembly, so as to realize the die cutting of the protective film and foam, etc., secondly, due to mechanical vibration or long time use of the guide rail assembly, the precision of the laser die cutting is reduced, which needs to be detected, generally due to the different coaxiality between the light beam and the air blowing nozzle 11, and the scheme designs the correction assembly, which can verify the coaxiality of the light beam and the air blowing nozzle 11, so as to ensure the die cutting quality.

[0038] Among the more preferred embodiments, the laser assembly further comprises a laser 6, a beam expander 5 and three reflecting parts 4 mounted on the bearing plate 2, wherein one reflecting part 4 is assembled on the terminal part, the terminal part further comprises a focusing mirror 10 mounted on the reflecting part 4, the air blowing nozzle 11 is located at the output end of the focusing mirror 10, the beam expander 5 is assembled between the laser 6 and one of the reflecting parts 4, and the remaining one reflecting part 4 serves as a transfer part, the laser emitted by the laser 6 passes through the beam expander 5, the three reflecting parts 4, the focusing mirror 10 and the air blowing nozzle 11 in sequence, please refer to Figures 2 to 4 In this embodiment, the light beam emitted by the laser 6 is reflected to the last reflecting part 4 through the first two reflecting parts 4, and is focused through the focusing mirror 10, so as to realize laser cutting, in this process, the light beam is expanded after being emitted from the laser 6 through the beam expander 5, the reflecting outlet of the reflecting part 4 assembled on the terminal part is perpendicular downward, so that the last energy focusing light beam can die cut the protective film or foam below.

[0039] On the basis of the embodiment of the laser assembly, the guide rail assembly is composed of an X-direction guide rail 9 and two parallel Y-direction guide rails 3, the X-direction guide rail 9 is electrically controlled and slidably installed on the top of the two Y-direction guide rails 3, and the output end of the X-direction guide rail 9 is fixedly installed with an assembly block 7, and the terminal part is assembled on the assembly block 7, please refer to Figure 2 In this embodiment, the two Y-direction guide rails 3 can control the displacement of the X-direction guide rail 9 in the Y direction, and the X-direction guide rail 9 can control the displacement of the assembly block 7 and the terminal part in the X direction, so as to realize two-dimensional die cutting of the protective film or foam.

[0040] In the preferred embodiment, the alignment assembly includes a tray 15 which can be moved directly below the blow nozzle 11, the top of the tray 15 is rotatably installed with a verification box 13, the inside of the verification box 13 is provided with a detection cavity, the top of the verification box 13 is provided with a light channel, at this time the light channel is coaxial with the blow nozzle 11, a laser power meter 19 is installed in the detection cavity, the inside of the detection cavity between the laser power meter 19 and the light channel is rotatably installed with a photosensitive sheet 16, a plurality of light transmission holes 18 are formed in the photosensitive sheet 16, and the light transmission hole 18, the blow nozzle 11, the light channel and the laser power meter 19 are coaxially designed.

[0041] Please refer to Figures 2 to 8 In this embodiment, in a normal state, the light beam focused from the focusing mirror 10 is maintained on the central axis of the blow nozzle 11, in order to improve the blowing effect of the blow nozzle 11, the blow nozzle 11 is designed in a conical state, the main function of the blow nozzle 11 is to gather auxiliary gas and form high pressure, and release it to the cutting material surface and the cutting seam, blow away the molten and vaporized base material generated in the cutting process, and leave a clean cutting seam, secondly, the high-speed gas can also prevent molten slag or contaminated smoke from rebounding, and can protect the focusing mirror 10, therefore, the light beam needs to be coaxial with the center line of the blow nozzle 11 to ensure the quality of the cutting surface, if the light beam is not coaxial with the center line of the blow nozzle 11, the position of the cutting seam will be offset, which will reduce the quality of blowing, and in turn will reduce the quality of the cutting seam, and the molten slag, base material or contaminated smoke generated during cutting will also gradually adhere to the port of the blow nozzle 11, causing the light beam to pass through the port, which will more seriously affect the cutting quality and also cause damage to the blow nozzle 11, therefore, in this embodiment, by designing the alignment assembly, the coaxiality of the blow nozzle 11 and the light beam needs to be verified within a unit time or a unit batch, please refer to Figure 5 , L is the vertical trajectory of the normal light beam, when verifying the light beam L, the laser 6 needs to be set to a point-shooting state and the power of the laser beam needs to be reduced, when the light beam L is coaxial with the center line of the blow nozzle 11, since the light transmission hole 18, the blow nozzle 11, the light channel and the laser power meter 19 are coaxially designed, the point-shooting light beam L will pass through the light channel and the light transmission hole 18 in turn to reach the surface of the laser power meter 19, the laser power meter 19 can detect the light beam L, thereby determining that the light beam L is coaxial with the center line of the blow nozzle 11; but when the light beam L is not coaxial with the center line of the blow nozzle 11, the position of the light beam L and the light transmission hole 18 is offset, thereby causing the point-shooting light beam L to be blocked by the photosensitive sheet 16, and the photosensitive sheet 16 will form a light spot at the contact point after receiving the light beam L, at this time it can be determined that the light beam L is not coaxial with the center line of the blow nozzle 11 and needs to be adjusted, and the position of the light spot formed can also be used as a guide for adjusting the position of the reflecting part 4, which is more convenient for the staff to align the reflecting part 4.

[0042] Secondly, since multiple light transmission holes 18 are designed, the photosensitive sheet 16 can be rotated again for verification, thereby ensuring the quality of verification.

[0043] On the basis of the calibration assembly embodiment, a limiting rotating ring 17 is arranged in the detection cavity, the outer wall of the limiting rotating ring 17 is provided with a worm groove, a worm 20 is rotatably arranged in the detection cavity and engages with the worm groove, one end of the worm 20 penetrates out of the verification box 13, the annular inner wall of the limiting rotating ring 17 is provided with an embedding groove, the photosensitive sheet 16 is arranged in the embedding groove, and a shear pin is arranged between the limiting rotating ring 17 and the photosensitive sheet 16, please refer to Figures 6 to 9 By designing the cooperation between the worm groove and the worm 20, the rotation of the limiting rotating ring 17 can be adjusted externally, thereby controlling the rotation of the photosensitive sheet 16, improving the utilization rate of the photosensitive sheet 16, and reducing the replacement frequency of the photosensitive sheet 16. Meanwhile, the worm groove and the worm 20 have self-locking characteristics, which can improve the accuracy. In order to facilitate use, a scale can be designed on the outer wall of the verification box 13, which is more helpful to adjust the position of the light transmission hole 18, so that it can be coaxial with the center line of the air blowing nozzle 11.

[0044] On the basis of the calibration assembly embodiment, an arc-shaped plate 12 is fixedly arranged on the top of the verification box 13, the arc-shaped plate 12 is a semicircular structure, a sponge part 23 is arranged on the inner wall of the arc-shaped plate 12, and an elastic part and a liquid supply part are also arranged on the inner wall of the arc-shaped plate 12. The elastic part can make the sponge part 23 press against the air blowing nozzle 11 to form a contact, and the liquid supply part can supply cleaning alcohol to the sponge part 23, please refer to Figures 5 to 9 In this embodiment, when the light beam is not coaxial with the center line of the air blowing nozzle 11, smoke or slag may gradually accumulate at the port of the air blowing nozzle 11, which may affect the normal path of the light beam, and the port of the air blowing nozzle 11 may also be deformed or stuck with clogging slag. Therefore, by designing the cooperation of the arc-shaped plate 12, the sponge part 23 and the elastic part, the outer wall of the sponge part 23 can be attached to the port of the air blowing nozzle 11, so that the cleaning alcohol contained in the sponge part 23 can infiltrate the port of the air blowing nozzle 11. At the same time, the arc-shaped plate 12 can be rotated on the top of the tray 15, so that the sponge part 23 can rub against the port of the air blowing nozzle 11, so that the slag and other substances can be treated, thereby achieving cleaning treatment of the port of the air blowing nozzle 11.

[0045] Further, the elastic part includes a semi-annular constraint air bag 22, the constraint air bag 22 has an outer ring constraint part and an inner ring extension part, a liquid storage tank 21 is arranged on the inner wall of the arc-shaped plate 12, the outer ring constraint part is fixedly connected with the liquid storage tank 21, and the inner ring extension part is fixedly connected with the outside of the sponge part 23. When the internal pressure of the constraint air bag 22 increases, the sponge part 23 will be expanded and extended, and a gas source can be injected into the constraint air bag 22, please refer to Figures 7 to 9In the embodiment, when the cleaning process is needed, the gas source is started, and the gas is injected into the inside of the constraint air bag 22. Due to the constraint of the outer ring constraint part to the constraint air bag 22, the inner ring extension part of the constraint air bag 22 can only extend inwardly. During the expansion process, the constraint air bag 22 applies pressure to the sponge part 23, so that the outer wall of the sponge part 23 can be pressure-fitted with the port of the blowing nozzle 11. At the same time, the sponge part 23 can make the alcohol inside the sponge part 23 be extruded out, so that the slag and other substances on the outer wall of the blowing nozzle 11 can be better infiltrated, and the cleaning process can be better performed. In addition, when the sponge part 23 is extruded in one direction, the sponge part 23 can be extended to the port opening, and the cleaning is more comprehensive.

[0046] Further, the liquid supply part includes cleaning alcohol filled in the liquid storage tank 21. The liquid storage tank 21 has an L-shaped structure. The part of the liquid storage tank 21 in contact with the inner ring extension part is designed as an extrusion part. The part of the outer wall of the liquid storage tank 21 in contact with the sponge part 23. The liquid storage tank 21 is provided with a one-way needle 24. The one-way needle 24 is designed to flow into the sponge part 23 in one direction. When the extrusion part is deformed, the alcohol inside the liquid storage tank 21 is injected into the sponge part 23 through the one-way needle 24. Please refer to Figure 8 Further, the liquid supply part includes cleaning alcohol filled in the liquid storage tank 21. The liquid storage tank 21 has an L-shaped structure. The part of the liquid storage tank 21 in contact with the inner ring extension part is designed as an extrusion part. The part of the outer wall of the liquid storage tank 21 in contact with the sponge part 23. The liquid storage tank 21 is provided with a one-way needle 24. The one-way needle 24 is designed to flow into the sponge part 23 in one direction. When the extrusion part is deformed, the alcohol inside the liquid storage tank 21 is injected into the sponge part 23 through the one-way needle 24. Please refer to

[0047] Further, the tray 15 is provided with a rotating shaft penetrating therethrough. The bottom of the tray 15 is fixedly provided with a driver for rotating the rotating shaft at a constant speed. The assembling block 7 is provided with an assembling plate 8. The assembling plate 8 is rotatably provided with a support 14. The support 14 is fixedly connected with the tray 15. When the support 14 is rotated to a preset position, the light channel can be coaxial with the blowing nozzle 11. In the embodiment, the preset position means that the photosensitive sheet 16 can be perpendicular to the light beam, and the light transmission hole 18 and the light channel can be coaxial with the center line of the blowing nozzle 11.

[0048] Further, the bottom of the bearing plate 2 is provided with a load plate 25. The load plate 25 is designed with a plurality of air holes. The inside of the case 1 is provided with a controller for controlling the lifting of the bearing plate 2.

[0049] By the cooperation of the above structure, the laser die cutting of the protective film and the foam and other materials can be realized, and the coaxiality of the light beam and the blowing nozzle 11 can be verified, and the die cutting quality is improved.

[0050] The standard parts used in the embodiment can be directly purchased from the market, and the non-standard structural parts according to the description and drawings can be processed without doubt according to the existing technical knowledge, and the connection mode of each part adopts the mature conventional means in the existing technology, and the machinery, parts and equipment adopt the conventional models in the existing technology, so the specific description is not made here.

[0051] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power battery cell protection film laser die-cutting device, characterized in that: Include: The chassis (1) and its inside bearing plate (2), the inside of the bearing plate (2) is installed with guide rail assembly; The laser assembly built-in in the chassis (1), the laser assembly includes terminal part, the terminal part includes blowing mouth (11); The terminal part is assembled on the output end of the guide rail assembly; The proofreading assembly is assembled on the terminal part, the proofreading assembly can verify the coaxiality of the light beam output by the terminal part and the blowing mouth (11); The laser assembly further includes laser (6) installed on the bearing plate (2), beam expander (5) and three reflection parts (4), one of the reflection parts (4) is assembled on the terminal part, the terminal part further includes focusing mirror (10) installed on the reflection part (4), the blowing mouth (11) is located at the output end of the focusing mirror (10), the beam expander (5) is assembled between the laser (6) and one of the reflection parts (4), the remaining one of the reflection parts (4) is used as a transfer part, the laser emitted by the laser (6) passes through the beam expander (5), three reflection parts (4), focusing mirror (10) and blowing mouth (11) in sequence; The guide rail assembly is composed of X direction guide rail (9) and two parallel Y direction guide rails (3), the X direction guide rail (9) is electrically controlled and slidably installed on the top of the two Y direction guide rails (3), the output end of the X direction guide rail (9) is fixedly installed with assembly block (7), and the terminal part is assembled on the assembly block (7); The proofreading assembly includes tray (15) which can move to the position directly below the blowing mouth (11), the top of the tray (15) is rotatably installed with verification box (13), the inside of the verification box (13) is provided with detection cavity, the top of the verification box (13) is provided with light channel, at this time, the light channel is coaxial with the blowing mouth (11), the detection cavity is installed with laser power meter (19), the inside of the detection cavity between the laser power meter (19) and the light channel is rotatably installed with photosensitive sheet (16), a plurality of light transmission holes (18) are formed in the photosensitive sheet (16), and the light transmission holes (18), the blowing mouth (11), the light channel and the laser power meter (19) are coaxially designed.

2. The power cell protection film laser die cutting apparatus of claim 1, wherein: The detection cavity is limitedly rotatably provided with limiting ring (17), the outer wall of the limiting ring (17) is provided with worm gear groove, the detection cavity is rotatably installed with worm (20) engaged with the worm gear groove, one end of the worm (20) penetrates out of the verification box (13), the annular inner wall of the limiting ring (17) is provided with embedding groove, the photosensitive sheet (16) is placed in the embedding groove, and shear pins are nailed between the limiting ring (17) and the photosensitive sheet (16).

3. The power cell protection film laser die cutting apparatus of claim 1, wherein: The top of the verification box (13) is fixedly installed with arc-shaped plate (12), the arc-shaped plate (12) is a semicircular structure, the inner wall of the arc-shaped plate (12) is installed with sponge part (23), the inner wall of the arc-shaped plate (12) is further installed with elastic part and liquid supply part, the elastic part can make the sponge part (23) form pressure contact between the blowing mouth (11), and the liquid supply part can provide cleaning alcohol for the sponge part (23).

4. The power cell protection film laser die cutting apparatus of claim 3, wherein: The elastic part comprises a semi-annular constraint air bag (22), the constraint air bag (22) has an outer ring constraint part and an inner ring extension part, the inner wall of the arc-shaped plate (12) is provided with a liquid storage tank (21), the outer ring constraint part is fixedly connected with the liquid storage tank (21), the inner ring extension part is fixedly connected with the outside of the sponge part (23), the constraint air bag (22) will expand and extend to the sponge part (23) when the internal air pressure of the constraint air bag (22) increases, and the constraint air bag (22) comprises a gas source that can be injected into the inside of the constraint air bag (22).

5. The power cell protection film laser die cutting apparatus of claim 4, wherein: The liquid supply part comprises cleaning alcohol filled in the inside of the liquid storage tank (21), the liquid storage tank (21) is of an L-shaped structure, the part of the liquid storage tank (21) in contact with the inner ring extension part is designed as an extrusion part, the part of the outer wall of the liquid storage tank (21) in contact with the sponge part (23), the liquid storage tank (21) is provided with a one-way needle (24), the one-way needle (24) is designed as a one-way flow into the sponge part (23), and the alcohol in the inside of the liquid storage tank (21) will be injected into the sponge part (23) through the one-way needle (24) when the extrusion part is deformed.

6. The power cell protection film laser die cutting apparatus of claim 1, wherein: A rotating shaft is penetrated through the tray (15), the bottom of the tray (15) is fixedly provided with a driver for rotating the rotating shaft at a constant speed, the assembling block (7) is provided with an assembling plate (8), the assembling plate (8) is rotatably provided with a support (14), the support (14) is fixedly connected with the tray (15), and the support (14) can make the light channel coaxial with the air blowing nozzle (11) when the support (14) is rotated to a preset position.

7. The power cell protector film laser die cutting apparatus of any of claims 1-6, wherein: The bottom of the bearing plate (2) is provided with a material loading plate (25), a plurality of air holes are designed on the material loading plate (25), and the inside of the cabinet (1) is provided with a controller for controlling the lifting of the bearing plate (2).

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