A storage device for composite diaphragm production

Abstract

The present invention relates to a storage device for composite diaphragm production applied to the technical field of battery diaphragm production equipment. The device solves the problems of diaphragm adhesion, insufficient quality inspection, wrinkles, poor temperature and humidity control, and low automation in the storage process of existing composite diaphragms. The device reduces the adhesion phenomenon between composite diaphragms through electrostatic separation and negative pressure transfer technology, making the diaphragms easier to separate without being damaged, and ensures the smooth transfer of the composite diaphragm through negative pressure absorption. The electric field sensor and pattern recognition algorithm are used to realize the accurate detection and positioning of surface defects of the composite diaphragm. The ultrasonic sensor and electrostrictive material are used to realize the effective detection and elimination of wrinkles. The phase change material and molecular sieve technology are used to realize the temperature and humidity control of the composite diaphragm storage environment, and the automatic flipping and lifting of the composite diaphragm storage and removal process are realized, which can significantly improve the production efficiency and product quality of the composite diaphragm.

Description

Technical Field

[0001] The invention relates to a storage device for composite diaphragm production, in particular to a storage device for composite diaphragm production applied in the technical field of battery diaphragm production equipment. Background Art

[0002] As an important material, composite diaphragm is widely used in many fields such as batteries, filtration, and packaging. In the production process of composite diaphragm, storage is a very critical link, which is directly related to the quality of composite diaphragm and subsequent processing performance. The correct storage method can not only ensure the stable performance of composite diaphragm, but also improve production efficiency and reduce production costs.

[0003] Due to the electrostatic effect and surface tension of the composite diaphragm itself, adhesion between diaphragms is likely to occur, which not only increases the difficulty of removing the diaphragm, but also may cause damage to the diaphragm. Simple mechanical separation of the adhered diaphragms is likely to produce wrinkles, affecting the flatness of the diaphragm. At the same time, there is a lack of effective online detection methods, and it is impossible to detect tiny defects on the diaphragm surface in time, such as holes, cracks, contamination, etc., which may affect the performance of the final product.

[0004] The specification of Chinese invention patent CN117719926A discloses a diaphragm storage device for sodium ion batteries, which belongs to the technical field of sodium ion battery production, and includes a base frame, and universal wheels are fixedly installed at the four corners of the lower surface of the base frame, and a traction handle is provided at one end of the base frame. Two support mechanisms are provided on the base frame, and installation mechanisms for installing diaphragm rolls are provided on the two support mechanisms. The invention supports the annular frame by providing a bracket and an installation frame, and by providing an I-shaped roller, it is convenient for the annular frame to rotate, and it is convenient for the staff to install or remove the diaphragm roll. By screwing the connecting shaft into the threaded groove, the baffle is against one end of the diaphragm roll, and the diaphragm roll can be fixed. By screwing out the connecting shaft, the diaphragm roll can be easily taken out to avoid damage to the diaphragm roll. By providing an annular frame, a plurality of installation shafts are provided on the circumference of the annular frame, and the storage capacity of the device can be increased and the device footprint can be reduced.

[0005] Although the above design solves the problem of low diaphragm storage capacity and large floor space, and reduces the damage of the storage device to the diaphragm, it still has certain limitations, such as the inability to solve the problem of adhesion between diaphragms, the lack of a quality inspection process, and the inability to eliminate wrinkles generated during storage and retrieval. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to provide a storage device for composite diaphragm production that uses electrostatic separation technology to enable the composite diaphragm to be smoothly separated during storage and removal, avoid damage to the diaphragm caused by adhesion, and complete the removal and placement by non-destructive negative pressure suction. At the same time, surface defects are automatically detected during storage to detect defective products, detect and eliminate wrinkles on the surface and inside of the composite diaphragm, maintain stable temperature and humidity in the storage environment of the composite diaphragm, and reduce the impact of external environmental changes on the diaphragm performance.

[0007] In order to solve the above problems, the present invention provides a storage device for composite diaphragm production, including a suction cup and a bottom plate, the inner wall of the suction cup is fixedly connected to an electrode plate, the bottom of the suction cup is provided with a plurality of evenly distributed suction holes, the outer end of the suction cup is fixedly connected to a plurality of guide rails, the outer ends of the plurality of guide rails are slidably connected to sliders, the outer end of the slider is fixedly connected to a servo motor, the outer end of the servo motor output shaft is fixedly connected to a bracket, the outer end of the bracket is fixedly connected to a plurality of electric field sensors and ultrasonic sensors, the bottom end of the suction cup is fixedly connected to a shielding layer, the top end of the bottom plate is fixedly connected to a first packaging plate, the top end of the bottom plate is fixedly connected to a second packaging plate, the outer ends of the first packaging plate and the second packaging plate are both provided with a plurality of pores, the cavity surrounded by the first packaging plate and the second packaging plate is filled with a plurality of molecular sieves, the top end of the first packaging plate is fixedly connected to a sealing plate, and the sealing plate is fixedly connected to the second packaging plate, the top end of the bottom plate is fixedly connected to an inner shell and an outer shell, the cavity surrounded by the inner shell and the outer shell is filled with a phase change material, the top end of the inner shell is fixedly connected to a cover plate, and the cover plate is fixedly connected to the outer shell.

[0008] As a further improvement of the present application, a plurality of negative pressure devices are fixedly connected to the outer end of the suction cup, and the plurality of negative pressure devices are symmetrically arranged about the center plane of the suction cup. The negative pressure device includes a flip shaft fixedly connected to the outer end of the suction cup, and a through hole is opened inside the flip shaft.

[0009] As a further improvement of the present application, the outer end of the flip shaft is rotatably connected to an air slip ring, and the air slip ring is connected to the suction cup through a through hole, the outer end of the air slip ring is fixedly connected to an air pipe, and the air pipe is connected to the air slip ring, and the end of the air pipe is fixedly connected to a negative pressure pump.

[0010] As a further improvement of the present application, a plurality of flip lifting devices are fixedly connected to the outer end of the flip shaft, and the plurality of flip lifting devices are symmetrically arranged along the center plane of the suction cup. The flip lifting device includes a flip motor fixedly connected to the flip shaft, and the top of the flip motor is fixedly connected to the negative pressure pump, and a plurality of ball nuts are fixedly connected to the outer end of the flip motor.

[0011] As another improvement of the present application, the inner ends of multiple ball nuts are rotatably connected to a ball screw, the top end of the ball screw is rotatably connected to a protective cover, the outer end of the protective cover is fixedly connected to the outer shell, the inner end of the protective cover is fixedly connected to a lifting motor, the output shaft of the lifting motor is rotatably connected to a belt, and the inner end of the belt is rotatably connected to the ball screw.

[0012] As another improved supplement of the present application, a plasma wind rod is fixedly connected to the inner wall of the first packaging plate, and the bottom end of the suction cup is made of an electrostrictive material, the electrostrictive material is a piezoelectric ceramic, the thickness of the electrostrictive material is 2-4 mm, and the strain generated by the electrostrictive material at an electric field strength of 100 V / cm is greater than 0.1%.

[0013] As another improved supplement of the present application, the shielding layer is made of polyurethane, carbon nanotubes, a dispersant, and a cross-linking agent. The diameter of the carbon nanotubes is 10-20nm, and the content is 1-3wt%. The thickness of the polyurethane base material is 0.1mm, the tensile strength of the polyurethane base material is greater than 20MPa, and the elongation at break is greater than 500%. The content of the dispersant is 0.5-2wt% of the weight of the polyurethane, and the content of the cross-linking agent is 0.1-1wt% of the weight of the polyurethane.

[0014] As another improvement of the present application, the molecular sieve is made of polypropylene, A molecular sieve, epoxy resin adhesive and glass fiber, the content of 5A molecular sieve is 40wt%, the content of polypropylene is 55wt%, the content of epoxy resin adhesive is 4wt%, and the content of glass fiber is 1wt%.

[0015] As another improvement of the present application, the phase change material is composed of a composite of paraffin, fatty acid, hydrated salt, and polyethylene glycol, the melting point range of the phase change material is 15°C to 25°C, the latent heat of the phase change material is greater than or equal to 100J / g, and the thermal conductivity of the phase change material is 0.1W / (m·K) to 1W / (m·K).

[0016] The steps include:

[0017] S1. Electrostatic separation and negative pressure absorption

[0018] After the composite diaphragm is stored in the storage device, the electrode plate is controlled to apply an electric field so that the composite diaphragm is charged with static electricity, and then the negative pressure pump is started to generate negative pressure to achieve electrostatic separation and negative pressure absorption of the composite diaphragm.

[0019] S2. Defect Detection

[0020] After the suction cup absorbs the composite diaphragm, the control electrode plate applies an electric field, and the electric field sensor performs scanning detection on the surface of the composite diaphragm. The location and type of defects are determined using feature extraction technology and pattern recognition algorithms, and the detection results are displayed in graphical form.

[0021] S3. Wrinkle detection and wrinkle removal

[0022] After the defect detection is completed, the ultrasonic sensor scans the composite diaphragm to detect wrinkles. According to the detection results, the electrode plate is controlled to apply an appropriate electric field to cause the electrostrictive material to deform and remove wrinkles until the wrinkles are completely eliminated.

[0023] S4, Dehumidification and Heat Preservation

[0024] When the composite diaphragm is stored, the phase change material maintains the stability of the internal temperature of the device. When the suction cup is not working, the negative pressure pump is started to accelerate the gas circulation, and the moisture enters the molecular sieve through the pores and is absorbed to achieve the purpose of dehumidification. When the suction cup is working, the molecular sieve continues to absorb moisture in the air.

[0025] In summary, this application has the following beneficial effects:

[0026] 1. Electrostatic separation and negative pressure transfer: Through electrostatic separation technology, the mutual attraction between composite diaphragms can be effectively reduced, making the diaphragms easier to separate without damage. Negative pressure absorption ensures the smooth transfer of the composite diaphragm and avoids wrinkles or damage during the transfer process. The automated process reduces manual intervention and improves production efficiency and product quality.

[0027] 2. Defect detection and positioning: The use of electric field sensors and pattern recognition algorithms can accurately identify and locate defects on the surface of composite diaphragms, such as holes, cracks, contamination, unevenness, etc., which helps to improve the overall quality of composite diaphragms. Early detection of defects can reduce the cost of later repairs or scrapping, avoid defective products from entering the market, and reduce potential losses. The automated detection process improves the detection speed and reduces the need for manual intervention.

[0028] 3. Wrinkle detection and wrinkle removal: Using ultrasonic sensors and electrostrictive materials, wrinkles on the surface and inside of the composite diaphragm can be accurately detected, and wrinkles can be removed by applying an appropriate electric field. Continuous monitoring ensures the effectiveness and integrity of the wrinkle removal process, improving production efficiency and product reliability.

[0029] 4. Stable temperature and humidity control: The use of phase change materials and molecular sieves ensures temperature stability and humidity control during storage of the composite diaphragm. Stable control of temperature and humidity helps reduce deformation and aging of the composite diaphragm during storage and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1This is the first partial view of this application;

[0031] Figure 2 This is the second partial view of this application;

[0032] Figure 3 This is the third partial view of the present application;

[0033] Figure 4 This is the fourth partial view of this application;

[0034] Figure 5 This is the fifth partial view of the present application;

[0035] Figure 6 This is the sixth partial view of the present application;

[0036] Figure 7 It is the seventh partial view of this application;

[0037] Figure 8 A top view of the present application;

[0038] Fig. 9 It is the AA cross-sectional view of this application;

[0039] Fig.10 It is the BB cross-sectional view of this application;

[0040] Fig.11 This is a schematic diagram of the overall structure of this application.

[0041] Description of the numbers in the figure:

[0042] 1. Suction cup; 2. Bottom plate; 3. Electrode plate; 4. Suction hole; 5. Guide rail; 6. Slider; 7. Bracket; 8. Electric field sensor; 9. Ultrasonic sensor; 10. Shielding layer; 11. First packaging plate; 12. Second packaging plate; 13. Air hole; 14. Molecular sieve; 15. Sealing plate; 16. Inner shell; 17. Outer shell; 18. Phase change material; 19. Cover plate; 20. Flip shaft; 21. Air slip ring; 22. Air pipe; 23. Negative pressure pump; 24. Flip motor; 25. Ball nut; 26. Ball screw; 27. Protective cover; 28. Lifting motor; 29. ​​Belt; 30. Plasma wind rod. DETAILED DESCRIPTION

[0043] Three implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0044] The first implementation method:

[0045] Figure 1-11A storage device for composite diaphragm production is shown, comprising a suction cup 1 and a bottom plate 2, wherein an electrode plate 3 is fixedly connected to the inner wall of the suction cup 1, a plurality of evenly distributed suction holes 4 are provided at the bottom of the suction cup 1, a plurality of guide rails 5 are fixedly connected to the outer end of the suction cup 1, a plurality of guide rails 5 are slidably connected to the outer ends of the plurality of guide rails 5, a servo motor is fixedly connected to the outer end of the slide 6, a bracket 7 is fixedly connected to the outer end of the servo motor output shaft, a plurality of electric field sensors 8 and ultrasonic sensors 9 are fixedly connected to the outer end of the bracket 7, a shielding layer 10 is fixedly connected to the bottom end of the suction cup 1, a first packaging plate 11 is fixedly connected to the top end of the bottom plate 2, A second packaging plate 12 is fixedly connected to the top, and multiple air holes 13 are opened at the outer ends of the first packaging plate 11 and the second packaging plate 12. The cavity surrounded by the first packaging plate 11 and the second packaging plate 12 is filled with multiple molecular sieves 14. A sealing plate 15 is fixedly connected to the top of the first packaging plate 11, and the sealing plate 15 is fixedly connected to the second packaging plate 12. An inner shell 16 and an outer shell 17 are fixedly connected to the top of the bottom plate 2. The cavity surrounded by the inner shell 16 and the outer shell 17 is filled with phase change material 18. A cover plate 19 is fixedly connected to the top of the inner shell 16, and the cover plate 19 is fixedly connected to the outer shell 17.

[0046] The inner wall of the suction cup 1 is provided with an electrode plate 3 for generating an electric field. The bottom of the suction cup 1 is provided with a plurality of evenly distributed suction holes 4 for negative pressure suction of the composite diaphragm. The electric field generated by the electrode plate 3 causes the composite diaphragm to carry static charge, reduces the attraction between the diaphragms, and facilitates separation. Negative pressure suction ensures smooth transfer of the composite diaphragm and reduces wrinkles or damage during the transfer process. The bottom plate 2 is connected to the first packaging plate 11 and the second packaging plate 12 to form a closed space, provide a stable basic support, and ensure the correct installation and operation of each component. The electrode plate 3 is fixed to the inner wall of the suction cup 1, and an electric field is applied to cause the composite diaphragm to carry static charge. The charge facilitates the electrostatic separation between the diaphragms. The effect of the electrostatic separation can be controlled by changing the voltage of the electrode plate, which helps to improve the separation efficiency of the composite diaphragm. The suction holes 4 are evenly distributed at the bottom of the suction cup 1. The composite diaphragm is sucked by negative pressure to ensure smooth transfer. The evenly distributed suction holes can ensure that the composite diaphragm is evenly adsorbed, reducing deformation or damage caused by uneven local adsorption force. The guide rail 5 is fixed to the outer end of the suction cup 1 and is used for the sliding of the slider 6, so that the slider 6 and the components thereon can move smoothly. The design of the guide rail 5 helps to ensure the precise positioning of the sensor and improve the accuracy of detection and wrinkle removal.

[0047] The slider 6 is slidably connected to the guide rail 5, and the servo motor is fixed. The bracket 7 is driven to move by the servo motor so that the sensor on the bracket 7 can be accurately positioned under the composite diaphragm. The precise control of the servo motor ensures the stability and accuracy of the sensor movement and improves the detection efficiency. The slider 6 is connected by the servo motor, and the electric field sensor 8 and the ultrasonic sensor 9 are fixed. The movement of the bracket 7 enables the sensor to scan the surface of the composite diaphragm for defect detection and wrinkle detection. The design of the bracket 7 enables the sensor to cover the entire surface of the composite diaphragm to ensure the comprehensiveness of the detection. The electric field sensor 8 is installed on the bracket 7 to detect the charge distribution of the composite diaphragm and determine the location and type of the defect. The ultrasonic sensor 9 is installed on the bracket 7 to detect the wrinkles on the surface and inside of the composite diaphragm to ensure flatness. The shielding layer 10 is fixed to the bottom end of the suction cup 1, and the voltage is applied to change the resistance to help the electric field penetrate, protect the composite diaphragm from the influence of the excessively strong electric field, and avoid breakdown. By adjusting the resistance of the shielding layer 10, the penetration effect of the electric field can be optimized and the efficiency of electrostatic separation can be improved.

[0048] The first packaging plate 11 and the second packaging plate 12 together form a cavity and are provided with a plurality of pores 13. The design of the pores 13 facilitates the circulation of gas and promotes the dehumidification and heat preservation process of the composite diaphragm. The molecular sieve 14 is filled in the cavity between the first packaging plate 11 and the second packaging plate 12 to absorb moisture and keep the composite diaphragm dry. The molecular sieve 14 has good adsorption properties and can effectively absorb moisture around the composite diaphragm to keep the composite diaphragm dry. The design of the sealing plate 15 helps to form a closed environment to prevent external moisture from entering and protect the composite diaphragm from being affected by moisture. The inner shell 16 and the outer shell 17 enclose a cavity to form a double-layer structure to provide a heat-insulating environment. The phase change material 18 is filled in the cavity between the inner shell 16 and the outer shell 17 to maintain the temperature of the environment around the composite diaphragm stable. The cover plate 19 provides a closed environment to protect the composite diaphragm from external influences. The closed environment helps to keep the composite diaphragm clean and dry and reduce the impact of external pollution.

[0049] The second implementation method:

[0050] Figure 1-11 It is shown that the flip shaft 20 is fixedly connected to the outer end of the suction cup 1, and a through hole is opened inside. By rotating the flip shaft 20, the suction cup 1 can be flipped to facilitate the storage and removal of the composite diaphragm. The internal through hole is used to transmit negative pressure to ensure that the composite diaphragm can be stably adsorbed. The design of the flip shaft 20 can ensure the smooth transfer of the composite diaphragm during the storage and removal process, thereby improving the operating efficiency and safety of the entire storage device;

[0051] The outer end of the flip shaft 20 is rotatably connected with an air slip ring 21, and the air slip ring 21 is connected with the suction cup 1 through a through hole. The air slip ring 21 can maintain communication with the suction cup 1 when the flip shaft 20 rotates, ensuring the stable transmission of negative pressure. The design of the rotary connection allows the suction cup 1 to not interrupt the negative pressure supply when flipping, ensuring the smooth transfer of the composite diaphragm. The outer end of the air slip ring 21 is fixedly connected with an air pipe 22, and the air pipe 22 is used to transmit the negative pressure from the negative pressure pump 23 to the air slip ring 21 and the suction cup 1, ensuring the stable supply of negative pressure, and facilitating the adsorption and release of the composite diaphragm. The end of the air pipe 22 is fixedly connected with a negative pressure pump 23, and the negative pressure pump 23 generates negative pressure, which is transmitted to the suction cup 1 through the air pipe 22 and the air slip ring 21. The operation of the negative pressure pump 23 ensures the smooth adsorption and release of the composite diaphragm, and improves the efficiency and safety of the transfer process.

[0052] The flip motor 24 is fixedly connected to the flip shaft 20, and the flip motor 24 is used to drive the rotation of the flip shaft 20 to realize the flipping of the suction cup 1. The ball nut 25 is fixedly connected to the outer end of the flip motor 24, and the ball nut 25 is used to cooperate with the ball screw 26 to realize the lifting action of the suction cup 1. The design of the ball nut 25 improves the efficiency and stability of the transmission. The symmetrical setting helps to balance the lifting process of the suction cup 1 and ensure the smooth transfer of the composite diaphragm. The design of the ball nut 25 helps to reduce friction and improve the transmission efficiency.

[0053] The top of the ball screw 26 is rotatably connected with a protective cover 27, which protects the ball screw 26 and the lifting motor 28 to ensure their normal operation. The bottom of the protective cover 27 is fixedly connected with the lifting motor 28. The output shaft of the lifting motor 28 is rotatably connected with the ball screw 26 through a belt 29. The connection between the belt 29 and the ball screw 26 ensures smooth transmission of power. The use of the lifting motor 28 improves the controllability and accuracy of the lifting action.

[0054] The inner wall of the first packaging plate 11 is fixedly connected with a plasma wind rod 30. The plasma wind rod 30 can generate plasma wind, which helps to remove static electricity and tiny particles on the surface of the composite diaphragm and reduce pollution. The use of the plasma wind rod 30 can improve the cleanliness of the composite diaphragm and reduce pollution problems in subsequent processing. The use of the electrostrictive material enables the suction cup 1 to deform under the action of the electric field, which helps to remove wrinkles and flatten the composite diaphragm. As a high-performance electrostrictive material, piezoelectric ceramics have good response speed and stability, which helps to improve the efficiency and quality of composite diaphragm processing. The appropriate thickness ensures that the electrostrictive material has sufficient mechanical strength while maintaining good electrostrictive performance.

[0055] The shielding layer 10 is made of polyurethane, carbon nanotubes, a dispersant, and a crosslinking agent. The addition of carbon nanotubes improves the conductivity of the shielding layer 10, which is helpful for the penetration of the electric field. At the same time, the resistance of the shielding layer 10 is changed by adjusting the voltage to prevent the electric field from breaking through the composite diaphragm. The polyurethane base material has high tensile strength and elongation at break, which ensures that the shielding layer 10 has sufficient mechanical strength and flexibility and is suitable for the processing of the composite diaphragm. The use of the dispersant helps the carbon nanotubes to be evenly distributed in the polyurethane base material, which improves the overall performance of the material. The addition of the crosslinking agent enhances the crosslinking degree of the polyurethane base material, which further improves the mechanical properties and stability of the material. By adjusting the content of the carbon nanotubes and the ratio of the dispersant and the crosslinking agent, the comprehensive performance of the shielding layer 10 can be optimized, so that it has both good electrical properties and sufficient mechanical strength.

[0056] The molecular sieve 14 is made of polypropylene, 5A molecular sieve, epoxy resin adhesive, and glass fiber. The 5A molecular sieve has good adsorption performance and can effectively absorb moisture around the composite diaphragm to keep the composite diaphragm dry. Polypropylene, as a thermoplastic, has good chemical resistance and mechanical properties and can provide a stable support structure for the molecular sieve 14. The epoxy resin adhesive helps to bond various components to ensure the structural integrity and stability of the molecular sieve 14. The addition of glass fiber improves the mechanical strength and heat resistance of the molecular sieve 14, making it more durable. Through the reasonable ratio of these components, the molecular sieve 14 not only has good moisture adsorption capacity, but also has high mechanical strength and stability, and is suitable for the dehumidification and heat preservation process of the composite diaphragm.

[0057] The phase change material 18 is composed of a composite of paraffin, fatty acids, hydrated salts, and polyethylene glycol. The phase change material 18 melts or solidifies within a certain temperature range, and absorbs or releases heat, thereby maintaining a stable temperature around the composite diaphragm. The high latent heat value means that the phase change material 18 can absorb or release a large amount of heat during the melting or solidification process, which helps to maintain the temperature of the composite diaphragm stable. The moderate thermal conductivity helps to conduct heat quickly, so that the phase change material 18 can respond quickly to temperature changes. Through the action of the phase change material 18, the impact of external temperature fluctuations on the composite diaphragm can be reduced, which helps to maintain the stable performance of the composite diaphragm. The use of the phase change material 18 helps to reduce the temperature change of the composite diaphragm during storage, thereby reducing the aging rate of the composite diaphragm and extending its service life.

[0058] The third implementation method:

[0059] Figure 1-11 The following steps are shown:

[0060] S1, electrostatic separation and negative pressure absorption;

[0061] After the composite diaphragm is stored in the storage device, when it is needed for production, the control system controls the lifting motor 28 to drive the belt 29, the belt 29 drives the ball screw 26 to rotate, the ball screw 26 drives the ball nut 25, the ball nut 25 drives the flipping motor 24 and the suction cup 1 to descend to the position in contact with the composite diaphragm, and at the same time the control system controls the servo motor to drive the bracket 7 on the slider 6 to move along the guide rail 5 to the side of the suction cup 1, when the bracket 7 moves to the edge of the suction cup 1, the servo motor drives the bracket 7 to flip, and at the same time the bracket 7 drives the electric field sensor 8 and the ultrasonic sensor 9 to flip to the side of the suction cup 1, so that the suction cup 1 can absorb the composite diaphragm, and when the suction cup 1 is close to the composite diaphragm, the electrode plate 3 is controlled. An electric field is applied, and the electric field passes through the electrostrictive material and the shielding layer 10 on the bottom surface of the suction cup 1. The applied electric field strength must be lower than the threshold value causing the electrostrictive material to deform to prevent the electrostrictive material from being excited to move. At the same time, a voltage is applied to the shielding layer 10 to change the resistance of the shielding layer 10, so that the electric field can penetrate more easily and act on the composite diaphragm to cause the composite diaphragm to be charged with static electricity. When the composite diaphragms are charged with the same kind of charge, adjacent diaphragms will push each other apart due to electrostatic repulsion, making the diaphragms easier to separate. At this time, the negative pressure pump 23 is started again, and the negative pressure generated by the negative pressure pump 23 is transmitted to the inside of the suction cup 1 through the air pipe 22, the air slip ring 21 and the through hole in the flip shaft 20, so that the composite diaphragm is adsorbed on the suction cup 1.

[0062] By controlling the electric field strength of the electrode plate 3 and the resistance of the shielding layer 10, it is ensured that the composite diaphragm is not broken down during the electrostatic separation process. Through electrostatic separation, the mutual attraction between the composite diaphragms can be effectively reduced, making the diaphragms easier to separate without being damaged. Negative pressure absorption ensures the smooth transfer of the composite diaphragm and avoids wrinkles or damage during the transfer process. The entire process reduces manual intervention and improves production efficiency and product quality.

[0063] S2, defect detection;

[0064] After the suction cup 1 absorbs the composite diaphragm, the control system controls the electrode plate 3 to generate an electrostatic field to act on the surface of the composite diaphragm. The control system drives the servo motor to drive the bracket 7 on the slider 6 to move along the guide rail 5. At the same time, the electric field sensor 8 on the bracket 7 performs a scanning detection on the surface of the composite diaphragm. By detecting the charge distribution, the location and type of the defect are determined. The digital filter removes noise from the data collected by the electric field sensor 8, and uses feature extraction technology to extract the rate of change, peak value, and valley value of the electric field intensity. The extracted features are mapped to different categories through the pattern recognition algorithm. Diaphragm samples with known defect types are used as training data sets to train the pattern recognition model. According to the trained model, unknown diaphragm samples are classified to determine which defect type they belong to. According to the comparison, the defect types are divided into holes, cracks, contamination, unevenness, etc., and the detection results are displayed in the form of charts or images by drawing charge distribution diagrams to help technicians quickly identify problem areas.

[0065] Accurately identifying and locating defects can help improve the overall quality of the composite diaphragm. Early detection of defects can reduce the cost of subsequent repairs or scrapping, prevent defective products from entering the market, and reduce potential losses. The automated inspection process improves the inspection speed, reduces the need for manual intervention, and quickly feeds back defect information, allowing the production line to adjust process parameters in a timely manner. The inspection data accumulated over a long period of time can be used to further optimize the production process and product quality control.

[0066] S3, wrinkle detection and wrinkle removal;

[0067] After the defect detection is completed, the suction cup 1 continues to absorb the composite diaphragm, and the control system drives the servo motor to drive the bracket 7 on the slider 6 to move along the guide rail 5. The ultrasonic sensor 9 located on the bracket 7 scans the composite diaphragm to detect whether there are wrinkles on the surface and inside of the diaphragm. The ultrasonic sensor 9 sends out ultrasonic signals and receives the reflected signals. By analyzing the time difference and intensity changes of these signals, it is determined whether the diaphragm has wrinkles or unevenness. According to the detection results of the ultrasonic sensor 9, the control system calculates the electric field strength and direction to be applied. The control system controls the electrode plate 3 to apply an appropriate electric field, so that the electrostrictive material responds to the electric field and deforms to remove wrinkles, thereby achieving the purpose of eliminating or reducing wrinkles. At the same time, the control system controls The voltage applied to the shielding layer 10 is controlled to increase the resistance of the shielding layer 10 and prevent the electric field from passing through the shielding layer 10 to break through the composite diaphragm. The ultrasonic sensor 9 continuously monitors the state of the composite diaphragm and the application of the electric field and voltage. If it is detected that the wrinkles still exist, the control system will adjust the strength and direction of the electric field until the wrinkles are completely eliminated. When the wrinkles are successfully removed, the control system stops applying the electric field. At the same time, the lifting motor 28 lifts the suction cup 1 to a predetermined position, and controls the flipping motor 24 to drive the flipping shaft 20 to rotate, so that the suction cup 1 flips 180 degrees. After flipping, the plasma wind rod 30 is started to eliminate the static electricity on the composite diaphragm. When the cover 19 is opened, the suction cup 1 continues to lift until it leaks out from above the storage device, waiting for the next process to start, and this reciprocating cycle.

[0068] The ultrasonic sensor 9 can accurately detect whether there are wrinkles or unevenness on the surface and inside of the composite diaphragm, ensuring the accuracy of the detection. The presence of wrinkles is determined by analyzing the time difference and intensity change of the ultrasonic signal, providing quantitative data support. The deformation of the electrostrictive material in response to the electric field can effectively eliminate or reduce wrinkles, thereby improving production efficiency. The ultrasonic sensor 9 continuously monitors the state of the composite diaphragm to ensure the effectiveness and integrity of the wrinkle removal process.

[0069] S4, dehumidification and heat preservation;

[0070] When the composite diaphragm is stored, the phase change material 18 between the inner shell 16 and the outer shell 17 can melt or solidify within a certain temperature range, absorb or release heat, maintain the temperature around the composite diaphragm stable, and reduce the impact of external temperature fluctuations. At the same time, when the suction cup 1 is not working, the suction cup 1 is turned upward, the suction cup 1 is in contact with the sealing plate 15, and the negative pressure pump 23 is continued to be started. The negative pressure is transmitted to the cavity of the inner shell 16 and the second packaging plate 12 through the suction hole 4, accelerating the gas circulation. The air enters the molecular sieve 14 through the pores 13 in the space where the composite diaphragm is located, and then flows into the suction cup 1 and is finally discharged. When passing through the molecular sieve 14, the molecular sieve 14 absorbs the moisture inside the diaphragm to achieve the purpose of dehumidification. When the suction cup 1 is working, the molecular sieve 14 can still continue to absorb moisture in the air.

[0071] The phase change material 18 can melt or solidify within a certain temperature range, absorb or release heat, so as to maintain the temperature stability of the environment around the composite diaphragm. This can reduce the impact of external temperature fluctuations on the composite diaphragm and help maintain the stable performance of the composite diaphragm. Through gas circulation and moisture absorption mechanism, moisture around the composite diaphragm can be effectively removed, humidity can be reduced, and performance degradation or structural changes caused by excessive humidity can be prevented. Stable control of temperature and humidity can slow down the aging process of the composite diaphragm and extend its service life. By reducing humidity, the erosion of water on the composite diaphragm can be reduced, thereby reducing the risk of corrosion or mildew. The control of temperature and humidity helps to reduce the deformation or warping of the composite diaphragm during processing and improve processing accuracy.

[0072] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A storage device for composite diaphragm production, characterized in that: The invention comprises a suction cup (1) and a bottom plate (2), wherein the inner wall of the suction cup (1) is fixedly connected to an electrode plate (3), the bottom of the suction cup (1) is provided with a plurality of evenly distributed suction holes (4), the outer end of the suction cup (1) is fixedly connected to a plurality of guide rails (5), the outer ends of the plurality of guide rails (5) are slidably connected to sliders (6), the outer ends of the sliders (6) are fixedly connected to a servo motor, the outer end of the servo motor output shaft is fixedly connected to a bracket (7), the outer end of the bracket (7) is fixedly connected to a plurality of electric field sensors (8) and ultrasonic sensors (9), the bottom end of the suction cup (1) is fixedly connected to a shielding layer (10), the top end of the bottom plate (2) is fixedly connected to a first packaging plate (11), the top end of the bottom plate (2) is fixedly connected to A second packaging plate (12) is connected, the outer ends of the first packaging plate (11) and the second packaging plate (12) are both provided with a plurality of pores (13), a cavity surrounded by the first packaging plate (11) and the second packaging plate (12) is filled with a plurality of molecular sieves (14), a sealing plate (15) is fixedly connected to the top of the first packaging plate (11), and the sealing plate (15) is fixedly connected to the second packaging plate (12), an inner shell (16) and an outer shell (17) are fixedly connected to the top of the bottom plate (2), a cavity surrounded by the inner shell (16) and the outer shell (17) is filled with a phase change material (18), a cover plate (19) is fixedly connected to the top of the inner shell (16), and the cover plate (19) is fixedly connected to the outer shell (17).

2. A storage device for composite diaphragm production according to claim 1, characterized in that: A plurality of negative pressure devices are fixedly connected to the outer end of the suction cup (1), and the plurality of negative pressure devices are symmetrically arranged about the center plane of the suction cup (1), and the negative pressure device comprises a flip shaft (20) fixedly connected to the outer end of the suction cup (1), and a through hole is formed inside the flip shaft (20).

3. A storage device for composite diaphragm production according to claim 2, characterized in that: The outer end of the flip shaft (20) is rotatably connected to an air slip ring (21), and the air slip ring (21) is connected to the suction cup (1) through a through hole; the outer end of the air slip ring (21) is fixedly connected to an air pipe (22), and the air pipe (22) is connected to the air slip ring (21); the end of the air pipe (22) is fixedly connected to a negative pressure pump (23).

4. A storage device for composite diaphragm production according to claim 3, characterized in that: The outer end of the flip shaft (20) is fixedly connected to a plurality of flip lifting devices, and the plurality of flip lifting devices are symmetrically arranged along the center plane of the suction cup (1). The flip lifting devices include a flip motor (24) fixedly connected to the flip shaft (20), and the top end of the flip motor (24) is fixedly connected to the negative pressure pump (23). The outer end of the flip motor (24) is fixedly connected to a plurality of ball nuts (25).

5. A storage device for composite diaphragm production according to claim 4, characterized in that: The inner ends of the plurality of ball nuts (25) are rotatably connected to a ball screw (26), the top end of the ball screw (26) is rotatably connected to a protective cover (27), the outer end of the protective cover (27) is fixedly connected to the outer shell (17), the inner end of the protective cover (27) is fixedly connected to a lifting motor (28), the output shaft of the lifting motor (28) is rotatably connected to a belt (29), and the inner end of the belt (29) is rotatably connected to the ball screw (26).

6. A storage device for composite diaphragm production according to claim 1, characterized in that: The inner wall of the first packaging plate (11) is fixedly connected to a plasma wind rod (30); the bottom end of the suction cup (1) is made of an electrostrictive material, the electrostrictive material is a piezoelectric ceramic, the thickness of the electrostrictive material is 2-4 mm, and the strain generated by the electrostrictive material at an electric field strength of 100 V / cm is greater than 0.1%.

7. A storage device for composite diaphragm production according to claim 1, characterized in that: The shielding layer (10) is made of polyurethane, carbon nanotubes, a dispersant, and a crosslinking agent. The carbon nanotubes have a diameter of 10-20 nm and a content of 1-3 wt%. The polyurethane is a base material, the thickness of the polyurethane is 0.1 mm, the tensile strength of the polyurethane is greater than 20 MPa, and the elongation at break is greater than 500%. The content of the dispersant is 0.5-2 wt% of the weight of the polyurethane, and the content of the crosslinking agent is 0.1-1 wt% of the weight of the polyurethane.

8. The storage device for composite diaphragm production according to claim 1, characterized in that: The molecular sieve (14) is made of polypropylene, 5A molecular sieve, epoxy resin adhesive, and glass fiber, wherein the content of the 5A molecular sieve is 40 wt%, the content of the polypropylene is 55 wt%, the content of the epoxy resin adhesive is 4 wt%, and the content of the glass fiber is 1 wt%.

9. A storage device for composite diaphragm production according to claim 1, characterized in that: The phase change material (18) is composed of a composite of paraffin, fatty acid, hydrated salt, and polyethylene glycol, the melting point of the phase change material (18) ranges from 15°C to 25°C, the latent heat of the phase change material (18) is greater than or equal to 100 J / g, and the thermal conductivity of the phase change material (18) is from 0.1 W / (m·K) to 1 W / (m·K).

10. A method for using a storage device for composite diaphragm production according to any one of claims 1 to 9, characterized in that: The steps include: S1, electrostatic separation and negative pressure absorption; After the composite diaphragm is stored in the storage device, the control electrode plate (3) applies an electric field so that the composite diaphragm is charged with static electricity, and then the negative pressure pump (23) is started to generate negative pressure, thereby achieving electrostatic separation and negative pressure absorption of the composite diaphragm; S2. Defect Detection After the suction cup (1) absorbs the composite diaphragm, the control electrode plate (3) applies an electric field, and the electric field sensor (8) performs scanning detection on the surface of the composite diaphragm, determines the location and type of defects using feature extraction technology and pattern recognition algorithm, and displays the detection results in the form of graphs; S3, wrinkle detection and wrinkle removal; After the defect detection is completed, the ultrasonic sensor (9) scans the composite diaphragm to detect wrinkles, and according to the detection result, controls the electrode plate (3) to apply an appropriate electric field to cause the electrostrictive material to deform and remove wrinkles until the wrinkles are completely eliminated; S4, dehumidification and heat preservation; When the composite diaphragm is stored, the phase change material (18) maintains the temperature inside the device stable. When the suction cup (1) is not working, the negative pressure pump (23) is started to accelerate the gas circulation, and the moisture enters the molecular sieve (14) through the pores (13) and is absorbed to achieve the purpose of dehumidification. When the suction cup (1) is working, the molecular sieve (14) continuously absorbs moisture in the air.

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