A multifunctional detection device for the production of lithium battery separators

Abstract

The present invention discloses a technology related to thickness detection, specifically a multifunctional detection device for the production of lithium battery diaphragms, which includes a measurement detection frame, a detection component, and a cooling component. A detection window is provided at the center of the measurement detection frame, and a moving control cavity is provided at the upper end inside the detection window. When the detection installation box moves left and right through the sliding control component for dimensional detection and measurement, the protective component provided below can cooperate with the introduced high-pressure air to respectively achieve automatic cleaning of the high-transparency protective lens and heat cooling of the laser transceiver module, improving the stability of the laser transceiver module in the detection installation box during use and the accuracy of detection. At the same time, as the high-pressure air of the protective component flows into the cooling component, the battery diaphragm passing through the detection window can be cooled to ensure the effectiveness of the detection and measurement values. In addition, the sliding control component can achieve adaptive lubrication, improving the smoothness and reliability of the movement of the detection component, with complete and reliable functions.

Description

Technical Field

[0001] The present invention relates to the technical field of thickness detection, and specifically relates to a multifunctional detection device for the production of lithium battery diaphragms. Background Art

[0002] A battery diaphragm refers to a layer of diaphragm material between the positive and negative electrodes of a battery, which is a very crucial part of the battery and has a direct impact on battery safety and cost. When producing a battery diaphragm, a coating needs to be applied while avoiding it. After the coating is applied, it needs to be dried through a drying device. After drying, the battery diaphragm needs to be measured for width, thickness, etc. by a laser measurement device to avoid defects in the quality of the battery diaphragm product after drying;

[0003] The utility model with the publication number CN218443759U discloses a thickness detection device for a battery diaphragm, including a frame and a cabinet door. An indicating meter is arranged at the lower part of a hydraulic rod, and the hydraulic rod and the indicating meter are connected to each other through a connecting plate. A laser probe is arranged at the bottom of the lower end of the indicating meter. For this thickness detection device of the battery diaphragm, the mechanized detection method can reduce the detection error. Since the size of the battery diaphragm will change immediately after drying during continuous production, in order to reasonably control the quality of the battery diaphragm, common laser size measurement devices are mostly installed at the rear end of the production line of the drying device. When the battery diaphragm passes by, direct on-line measurement is carried out through the laser measurement device. However, the existing laser size measurement devices have relatively single functions, and when the laser size measurement device is in use, static electricity will be generated at the laser emission end through the conversion of electrical energy, and pollutants floating in the air will adsorb on the surface after long-term use, and the continuously operating laser measurement device is prone to overheating problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional detection device for the production of lithium battery diaphragms to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A multifunctional detection device for the production of lithium battery diaphragms, including:

[0006] A measurement and detection frame, a detection window is opened at the center of the measurement and detection frame, a moving control cavity is opened at the upper end inside the detection window, and a moving support plate is horizontally movably arranged in the moving control cavity through a sliding control assembly. The sliding control assembly includes a slide rail and a control lead screw;

[0007] Detection component, the detection component includes a square safety box, the square safety box is arranged at the center of the lower end of the movable pallet, the square safety box is placed in the detection window, an installation cavity is opened at the lower end inside the square safety box, a detection installation box is vertically fixed on one side inside the installation cavity through bolts, a protection component is fixedly sleeved at the lower end of the detection installation box, and the protection component includes a protection mounting seat and a high-transparency protection lens;

[0008] Cooling component, the cooling component is arranged on both side surfaces of the measurement and detection frame close to the detection window, the cooling component includes two cooling housings, and a spacer groove is clamped between the two cooling housings and the measurement and detection frame.

[0009] Preferably, sliding rails are horizontally arranged at the lower ends on both sides inside the movement control cavity of the measurement and detection frame, sliding blocks are arranged at both sides of the lower end of the movable pallet, the two sliding blocks are respectively slidably sleeved on the two sliding rails, a movement connection block is arranged at the center of the upper end of the movable pallet, a control lead screw is horizontally arranged at the center of the upper end inside the movement control cavity, and the movement connection block is sleeved on the control lead screw through a lead screw nut.

[0010] Preferably, a plug connector is arranged at the lower end of the detection installation box, a light-transmitting window is vertically penetrated and opened on one side of the protection mounting seat, the plug connector of the detection installation box is inserted into the light-transmitting window, a cavity is opened inside the detection installation box, a laser transceiver module is inserted through the plug connector inside the cavity, and the cross-sectional area of the light-transmitting window is larger than the cross-sectional area of the laser transceiver module.

[0011] Preferably, a rotation groove is horizontally opened at the lower end inside the protection mounting seat, a first gear groove is opened at the upper end inside the rotation groove in the protection mounting seat, a second gear groove is opened at the upper end of the first gear groove in the protection mounting seat, a high-transparency protection lens is horizontally rotatably arranged inside the rotation groove, one side of the high-transparency protection lens is inserted into the light-transmitting window, a threaded combination groove is opened at the lower end on the side away from the light-transmitting window inside the rotation groove of the protection mounting seat, a cleaning cloth mounting block is inserted into the threaded combination groove, the upper end of the cleaning cloth mounting block is in contact with the lower end surface of the high-transparency protection lens, and the diameter of the cleaning cloth mounting block is larger than the width of the light-transmitting window.

[0012] Preferably, a first synchronous shaft is inserted and rotatably arranged inside the first gear groove at the center of the upper end of the high-transparency protection lens, a first transmission gear is sleeved at the upper end of the first synchronous shaft, a second synchronous shaft is vertically inserted and rotatably arranged between the first gear groove and the second gear groove, a self-rotating gear disk and a second transmission gear are respectively arranged at the upper and lower ends of the second synchronous shaft, and one side of the second transmission gear is meshed and connected with the first transmission gear.

[0013] Preferably, an assembly connection seat is provided at the upper end of the protective mounting seat, and an assembly card seat is provided on one side of the detection mounting box located at the assembly connection seat, and one side of the upper end of the assembly connection seat is plugged into the lower end of the assembly card seat by bolts, and a blowing groove is provided in the assembly connection seat, and the blowing groove is connected to the second gear groove and is provided with a third synchronous shaft, and the upper and lower ends of the third synchronous shaft are respectively provided with a toggle impeller and a driving gear, and an inner tooth groove is provided at the upper end of the self-rotating gear disk, and the driving gear is plugged into the inner tooth groove and meshed and connected, and an annular collecting groove is provided in the assembly connection seat at the lower end of the blowing groove, and the upper end of the annular collecting groove is connected to the blowing groove, and a second docking groove is provided in the assembly card seat to connect the cavity, and a first docking groove is provided in the assembly connection seat to connect the second docking groove and the annular collecting groove, and a plurality of heat sinks are provided at the upper end of the laser transceiver module.

[0014] Preferably, a diversion groove is opened in the movable pallet, a transfer groove is opened at the upper end of the square safety box, the lower end of one side of the transfer groove is connected with the cavity of the detection installation box, a center groove is connected between the transfer groove and the diversion groove, and output grooves are opened on both sides of the upper end of the movable pallet in the diversion groove.

[0015] Preferably, the upper ends of the output slots are connected and plugged with an air supply hose, one side of the air supply hose is connected to one side of the plug-in spacing slot, and the inner side surface of the cooling cover shell connected to the spacing slot is provided with a plurality of cooling air blowing holes.

[0016] Preferably, the movable support plate is located at the lower end of the diversion groove with two oil chambers, and one side of the upper end of the two oil chambers is connected with the diversion groove through a one-way valve, and an oil dripping hole is provided at the upper end of the slider sleeve connected to the slide rail, and the lower end of one side of the two oil chambers is connected to the two oil dripping holes and an oil delivery pipe is inserted.

[0017] Preferably, the upper ends of both sides of the movable support plate are provided with yield grooves, and the yield grooves are connected to the output grooves and provided with blocking grooves. A blocking rod is provided in the blocking groove through a partition plate for horizontal movement. A blocking piston and a pushing block are provided at both ends of the blocking rod, respectively. The blocking rod is located between the partition plate and the pushing block and is sleeved with a return spring. Two push-in rods are symmetrically provided on one side of the movable control cavity, and the two push-in rods are arranged corresponding to the two yield grooves. One side surface of the two push-in rods are both inclined surfaces. When the slide rail needs to be lubricated, the blocking piston blocks the output groove, the pushing block retracts into the blocking groove, and the push-in rod is inserted into the yield groove and contacts with the pushing block.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] When detecting the left - right movement and dimensional measurement of the detection installation box through the sliding control component, the protective component set below can cooperate with the connected high - pressure air to respectively achieve the automatic cleaning of the high - permeability protective lens and the heat cooling of the laser transceiver module, improving the stability of the laser transceiver module in the detection installation box and the detection accuracy. At the same time, as the high - pressure air of the protective component flows into the cooling component, it can cool the battery diaphragm passing through the detection window to ensure the effectiveness of the detection and measurement values. In addition, the sliding control component can achieve adaptive lubrication, improving the smooth and reliable movement of the detection component, with complete and reliable functions. Description of the Drawings

[0020] Figure 1 Schematic diagram of the first perspective of the structure of the present invention;

[0021] Figure 2 Schematic diagram of the second perspective of the structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 Schematic diagram of part A of the present invention;

[0023] Figure 4 Schematic diagram of the partial side - cut structure of the present invention;

[0024] Figure 5 For the present invention Figure 4 Schematic diagram of part B of the present invention;

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of part C of the present invention;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of part D of the present invention;

[0027] Figure 8 For the present invention Figure 5 Schematic diagram of part E of the present invention;

[0028] Figure 9 For the present invention Figure 8 Schematic diagram of part F of the present invention;

[0029] Figure 10 Schematic diagram of the installation structure of the moving support plate of the present invention;

[0030] Figure 11 Schematic diagram of the installation of the detection installation box of the present invention;

[0031] Figure 12 Schematic diagram of the installation combination of the detection installation box and the protective installation seat of the present invention.

[0032] In the figure: measuring and detecting frame 1, moving control cavity 3, slide rail 4, moving support plate 5, square safety box 6, detecting installation box 7, protective installation seat 8, light-transmitting window 9, laser transceiver module 10, high-transmittance protective lens 11, first transmission gear 12, self-rotating gear disc 13, second transmission gear 14, inner tooth groove 15, assembly connection seat 16, assembly card seat 17, toggle impeller 18, driving gear 19, annular collecting groove 20, first docking groove 21, second docking groove 22, heat sink 23, diverter groove 24, center groove 25, output groove 26, cooling cover 27, spacing groove 28, air supply hose 29, cooling blowing hole 30, give way groove 31, blocking piston 32, pushing block 33, reset spring 34, slider 35, oil supply pipe 36, moving connection block 37, control screw rod 38, oil chamber 39, top insertion rod 40, cleaning cloth installation block 41, transfer groove 42. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Please refer to the attached Figures 1-12 , this application provides the following technical solutions.

[0035] Embodiment 1: A multifunctional detection device for lithium battery separator production, comprising:

[0036] A measuring and detecting frame 1, wherein a detection window is provided at the center of the measuring and detecting frame 1, a movable control chamber 3 is provided at the upper end of the detection window, a movable support plate 5 is provided in the movable control chamber 3 for horizontal movement through a sliding control component, the sliding control component comprises a slide rail 4 and a control screw 38, slide rails 4 are provided horizontally at the lower ends of both sides of the movable control chamber 3 of the measuring and detecting frame 1, slide blocks 35 are provided on both sides of the lower end of the movable support plate 5, two slide blocks 35 are respectively slidably sleeved with two slide rails 4, a movable connecting block 37 is provided at the center of the upper end of the movable support plate 5, a control screw 38 is horizontally provided at the center of the upper end of the movable control chamber 3, and the movable connecting block 37 is sleeved with the control screw 38 through a screw thread sleeve, the movable support plate 5 is precisely controlled by the servo of the control screw 38 to realize left and right movement, and it is convenient to reach the edge of the battery diaphragm through which the detection window passes when moving left and right, so as to realize width detection and thickness detection at different positions;

[0037] Set up a detection component to implement the detection of the size information of the battery separator. The detection component includes a square safety box 6, which is arranged at the center of the lower end of the moving pallet 5. The square safety box 6 is placed within the detection window. An installation cavity is opened at the lower end inside the square safety box 6. On one side of the installation cavity, a detection installation box 7 is vertically fixed by bolts. A protective component is fixedly sleeved at the lower end of the detection installation box 7. The protective component includes a protective mounting seat 8 and a high-transparency protective lens 11. A plug connector is provided at the lower end of the detection installation box 7. A light-transmitting window 9 is vertically penetrated and opened on one side of the protective mounting seat 8. The plug connector of the detection installation box 7 is inserted into the light-transmitting window 9. A cavity is opened inside the detection installation box 7. A laser transceiver module 10 is inserted through the plug connector in the cavity, and the cross-sectional area of the light-transmitting window 9 is larger than the cross-sectional area of the laser transceiver module 10. When performing thickness detection, calibration needs to be carried out in advance. To improve the accuracy of detection, a corresponding second detection installation box 7 can also be set at the lower end of the detection window for cooperative detection.

[0038] A rotation groove is horizontally opened at the lower end inside the protective mounting seat 8. A first gear groove is opened at the upper end inside the protective mounting seat 8 within the rotation groove. A second gear groove is opened at the upper end of the protective mounting seat 8 located above the first gear groove. A high-transparency protective lens 11 is horizontally rotatably arranged in the rotation groove. One side of the high-transparency protective lens 11 is inserted into the light-transmitting window 9. On the side of the protective mounting seat 8 located away from the light-transmitting window 9 at the lower end of the rotation groove, a threaded combination groove is opened. A cleaning cloth mounting block 41 is inserted into the threaded combination groove. The upper end of the cleaning cloth mounting block 41 is in contact with the lower end surface of the high-transparency protective lens 11, and the diameter of the cleaning cloth mounting block 41 is larger than the width of the light-transmitting window 9. A first synchronous shaft is inserted and rotatably arranged at the center of the upper end of the high-transparency protective lens 11 into the first gear groove. A first transmission gear 12 is sleeved at the upper end of the first synchronous shaft. A second synchronous shaft is vertically inserted and rotatably arranged between the first gear groove and the second gear groove. Self-rotating gear disks 13 and a second transmission gear 14 are respectively arranged at the upper and lower ends of the second synchronous shaft, and one side of the second transmission gear 14 is meshed and connected with the first transmission gear 12. When the high-transparency protective lens 11 rotates and moves in the rotation groove, the high-transparency protective lens 11 makes moving contact with the cleaning cloth mounting block 41 to realize the surface wiping and cleaning of the high-transparency protective lens 11.

[0039] An assembly connection seat 16 is provided at the upper end of the protection mounting seat 8, and an assembly card seat 17 is provided on one side of the assembly connection seat 16 located at the detection mounting box 7. One side of the upper end of the assembly connection seat 16 is plugged into the lower end of the assembly card seat 17 by bolts. A blowing groove is provided in the assembly connection seat 16, and the blowing groove is connected to the second gear groove and is provided with a third synchronous shaft. The upper and lower ends of the third synchronous shaft are respectively provided with a toggle impeller 18 and a driving gear 19. An inner tooth groove 15 is provided at the upper end of the self-rotating gear disc 13, and the driving gear 19 is plugged into the inner tooth groove 15 and meshedly connected. An annular collecting groove 20 is provided at the lower end of the blowing groove in the assembly connection seat 16, and the upper end of the annular collecting groove 20 is connected to the blowing groove. A second docking groove 22 is provided in the connecting cavity of the assembly card seat 17, and a second docking groove 22 is provided in the assembly connection seat 16 to connect the second docking groove 22 and the annular collecting groove 20. The first docking slot 21, the upper end of the laser transceiver module 10 is provided with a plurality of heat sinks 23. When the blowing slot of the assembly connection seat 16 is connected to the high-pressure gas, the high-pressure gas blows the toggle impeller 18 and the driving gear 19 to rotate at high speed, and the high-speed rotating driving gear 19 drives the self-rotating gear plate 13 to decelerate, and the decelerating self-rotating gear plate 13 drives the second transmission gear 14 to move synchronously, and then the second transmission gear 14 further drives the first transmission gear 12 to decelerate, thereby realizing the slow rotation of the high-speed rotating toggle impeller 18 and the high-transmittance protective lens 11. After the slowly rotating high-transmittance protective lens 11 contacts the cleaning cloth mounting block 41, the high-transmittance protective lens 11 is continuously and automatically cleaned, and a good detection environment is always maintained, and the light beam generated by the laser transceiver module 10 will not be blocked when passing through the high-transmittance protective lens 11;

[0040] At the same time, the high-pressure wind entering the blowing groove enters the air of the detection installation box 7 through the annular collecting groove 20, the first docking groove 21 and the second docking groove 22, and performs heat dissipation treatment on the laser transceiver module 10, thereby improving the cooling effect of the laser transceiver module 10 that is used frequently and for a long time.

[0041] Cooling component, the cooling component is arranged on both side surfaces of the measurement and detection frame 1 close to the detection window. The cooling component includes two cooling housing 27, and there is a spacer groove 28 between the two cooling housing 27 and the measurement and detection frame 1. A diversion groove 24 is formed in the movable support plate 5, and a transfer groove 42 is formed at the upper end inside the square safety box 6. The lower end of one side of the transfer groove 42 is communicated with the cavity of the detection installation box 7. A central groove 25 is communicated between the transfer groove 42 and the diversion groove 24. Output grooves 26 are formed through the upper ends of both sides of the movable support plate 5 in the diversion groove 24. Air supply hoses 29 are connected and inserted at the upper ends of the output grooves 26. One side of the air supply hose 29 is connected and inserted into one side of the spacer groove 28. A number of cooling air blowing holes 30 are formed on the inner side surface of the cooling housing 27 communicating with the spacer groove 28. After the high-pressure air enters the cavity of the detection installation box 7, it enters the two output grooves 26 through the internally arranged transfer groove 42, central groove 25 and diversion groove 24, and then under the connection action of the two air supply hoses 29, it enters the spacer groove 28 between the measurement and detection frame 1 and the cooling housing 27. Subsequently, since the volume of the spacer groove 28 is larger than the flow rate of the fed gas, at this time, the gas in the spacer groove 28 gently blows from a number of cooling air blowing holes 30 to the passing battery separator, actively cools the battery separator after drying, and will not cause disturbance to the separator, avoiding detection errors. At the same time, through active cooling, the battery separator can quickly reach the natural temperature, and the thermal expansion and contraction changes have been completed before detecting the size.

[0042] Embodiment 2: On the basis of Embodiment 1, the horizontal sliding stability of the moving pallet 5 is strengthened. Two oil cavities 39 are provided at the lower end of the diversion groove 24 where the moving pallet 5 is located. One side of the upper ends of the two oil cavities 39 is connected to the diversion groove 24 through one-way valves. An oil dripping hole is provided at the upper end of the sliding block 35 sleeved on the slide rail 4. A fuel delivery pipe 36 is connected and inserted between the lower ends of one side of the two oil cavities 39 and the two oil dripping holes respectively. Yielding grooves 31 are provided at the upper ends of both sides of the moving pallet 5. A plugging groove is provided in communication with the output groove 26 in the yielding groove 31. A plugging rod is horizontally movably inserted in the plugging groove through a partition plate. A plugging piston 32 and a pushing block 33 are respectively provided at both ends of the plugging rod. A return spring 34 is sleeved between the partition plate and the pushing block 33 of the plugging rod. Two jacking rods 40 are symmetrically provided on one side in the moving control cavity 3. The two jacking rods 40 are arranged corresponding to the two yielding grooves 31. One side surface of each of the two jacking rods 40 is an inclined surface. When lubrication operation needs to be performed on the slide rail 4, the plugging piston 32 plugs the output groove 26, the pushing block 33 retracts into the plugging groove, and the jacking rod 40 is inserted into the yielding groove 31 and contacts the pushing block 33. When lubrication operation needs to be performed on the slide rail 4 and the sliding block 35, the control lead screw 38 controls the moving pallet 5 to move towards the position of the jacking rod 40. During normal detection and use, the moving pallet 5 can complete normal detection without reaching the position of the jacking rod 40. When the two jacking rods 40 are inserted into the yielding grooves 31 and push the pushing block 33 and the plugging piston 32 to move, the plugging piston 32 plugs the output groove 26. At this time, the gas in the diversion groove 24 cannot be sent into the spacer groove 28 through the output groove 26. Then, as the air pressure in the diversion groove 24 gradually increases, the high-pressure gas jacks the one-way valve of the oil cavity 39 into it. Then, after the lubricating oil in the oil cavity 39 is pressurized, it flows through the fuel delivery pipe 36 between the sliding block 35 and the slide rail 4 to lubricate the sliding of the two, improving the smoothness and accuracy of the left and right sliding during detection.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional detection device for lithium battery separator production, characterized in that, include: A measuring and detecting frame (1), wherein a detection window is provided at the center of the measuring and detecting frame (1), a movable control cavity (3) is provided at the upper end of the detection window, a movable support plate (5) is provided in the movable control cavity (3) for horizontal movement via a sliding control component, and the sliding control component comprises a slide rail (4) and a control screw rod (38); A detection component, the detection component comprising a square safety box (6), the square safety box (6) being arranged at the center of the lower end of the movable support plate (5), the square safety box (6) being placed in the detection window, a mounting cavity being provided at the lower end of the square safety box (6), a detection mounting box (7) being vertically fixedly provided at one side of the mounting cavity by bolts, a protective component being fixedly sleeved at the lower end of the detection mounting box (7), the protective component comprising a protective mounting seat (8) and a high-transmittance protective lens (11); A cooling component, the cooling component being arranged on two side surfaces of the measuring and detecting frame (1) close to the detection window, the cooling component comprising two cooling covers (27), and a spacing groove (28) being sandwiched between the two cooling covers (27) and the measuring and detecting frame (1); A cavity is provided in the detection installation box (7), a diversion groove (24) is provided in the movable support plate (5), a transfer groove (42) is provided at the upper end of the square safety box (6), a lower end of one side of the transfer groove (42) is connected to the cavity of the detection installation box (7), a central groove (25) is provided between the transfer groove (42) and the diversion groove (24), and output grooves (26) are provided on both sides of the upper end of the movable support plate (5) in the diversion groove (24); The upper ends of the output slots (26) are connected and plugged with an air supply hose (29), one side of the air supply hose (29) is connected and plugged with one side of the spacing slot (28), and the inner side surface of the cooling cover (27) is connected to the spacing slot (28) and is provided with a plurality of cooling air blowing holes (30); The upper end of the protective mounting seat (8) is provided with an assembly connection seat (16), and the detection mounting box (7) is provided with an assembly clamping seat (17) on one side of the assembly connection seat (16). The upper end of the assembly connection seat (16) is plugged into the lower end of the assembly clamping seat (17) by bolts. A blowing groove is provided in the assembly connection seat (16), and a third synchronous shaft is provided in the blowing groove connected to the second gear groove. The upper and lower ends of the third synchronous shaft are respectively provided with a toggle impeller (18) and a driving gear (19), and the upper end of the self-rotating gear disc (13) is provided with an inner tooth groove. (15), a driving gear (19) is inserted into the inner tooth groove (15) and meshedly connected, an annular collecting groove (20) is provided in the assembly connection seat (16) at the lower end of the blowing groove, the upper end of the annular collecting groove (20) is connected to the blowing groove, a second docking groove (22) is provided in the assembly card seat (17) in communication with the cavity, a first docking groove (21) is provided in the assembly connection seat (16) in communication with the second docking groove (22) and the annular collecting groove (20), and a plurality of heat sinks (23) are provided at the upper end of the laser transceiver module (10).

2. The multifunctional detection device for lithium battery separator production according to claim 1, wherein: Both lower ends on two sides inside the movement control cavity (3) of the measurement and detection frame (1) are horizontally provided with slide rails (4). Both lower ends on two sides of the movable support plate (5) are provided with sliders (35). The two sliders (35) are respectively slidably sleeved on the two slide rails (4). The center of the upper end of the movable support plate (5) is provided with a movable connection block (37). The control lead screw (38) is horizontally arranged at the center of the upper end inside the movement control cavity (3), and the movable connection block (37) is sleeved on the control lead screw (38) through a lead screw nut.

3. The multifunctional detection device for lithium battery separator production according to claim 2, wherein: The lower end of the detection installation box (7) is provided with a plug connector. A light-transmitting window (9) is vertically penetrated and opened on one side of the protection installation seat (8). The plug connector of the detection installation box (7) is inserted into the light-transmitting window (9). A laser transceiver module (10) is inserted through the plug connector inside the cavity, and the cross-sectional area of the light-transmitting window (9) is larger than the cross-sectional area of the laser transceiver module (10).

4. A multifunctional detection device for lithium battery separator production according to claim 3, characterized in that: A rotation groove is horizontally opened at the lower end inside the protection installation seat (8). A first gear groove is opened at the upper end inside the rotation groove of the protection installation seat (8). A second gear groove is opened at the upper end of the protection installation seat (8) located in the first gear groove. A highly transparent protection lens (11) is horizontally rotatably arranged inside the rotation groove. One side of the highly transparent protection lens (11) is inserted into the light-transmitting window (9). The protection installation seat (8) is provided with a threaded combination groove at the lower end on the side away from the light-transmitting window (9) inside the rotation groove. A cleaning cloth installation block (41) is inserted into the threaded combination groove. The upper end of the cleaning cloth installation block (41) is in contact with the lower end surface of the highly transparent protection lens (11), and the diameter of the cleaning cloth installation block (41) is larger than the width of the light-transmitting window (9).

5. A multifunctional detection device for the production of lithium battery separators according to claim 4, characterized in that: A first synchronous shaft is inserted and rotatably arranged at the center of the upper end of the highly transparent protection lens (11) inside the first gear groove. A first transmission gear (12) is sleeved at the upper end of the first synchronous shaft. A second synchronous shaft is vertically inserted and rotatably arranged between the first gear groove and the second gear groove. The upper and lower ends of the second synchronous shaft are respectively provided with a self-rotating gear disk (13) and a second transmission gear (14), and one side of the second transmission gear (14) is meshed and connected with the first transmission gear (12).

6. The multifunctional detection device for lithium battery separator production according to claim 5, characterized in that: Two oil cavities (39) are opened at the lower end of the movable support plate (5) located in the flow dividing groove (24). One side of the upper ends of the two oil cavities (39) is communicated with the flow dividing groove (24) through one-way valves. Oil dripping holes are opened at the upper ends where the sliders (35) are sleeved on the slide rails (4). Feed oil pipes (36) are communicated and inserted between one side of the lower ends of the two oil cavities (39) and the two oil dripping holes respectively.

7. A multifunctional detection device for the production of lithium battery separators according to claim 6, characterized in that: On both upper ends of the movable pallet (5), relief grooves (31) are respectively formed. Plugging grooves are formed in the relief grooves (31) and communicate with the output grooves (26). In the plugging grooves, plugging rods are horizontally and movably inserted through partitions. Plugging pistons (32) and pushing blocks (33) are respectively arranged at two ends of the plugging rods. Return springs (34) are sleeved between the partitions and the pushing blocks (33) on the plugging rods. On one side in the moving control cavity (3), two top-in inserting rods (40) are symmetrically arranged. The two top-in inserting rods (40) are arranged corresponding to the two relief grooves (31). One side surface of each of the two top-in inserting rods (40) is an inclined surface. When lubrication operation needs to be performed on the slide rail (4), the plugging piston (32) plugs the output groove (26), the pushing block (33) retracts into the plugging groove, and the top-in inserting rod (40) is inserted into the relief groove (31) and contacts the pushing block (33).

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