A gel polymer separator cast sheet apparatus
By designing a gel polymer diaphragm casting equipment, the problems of uniform spreading, solidification and peeling of liquid slurry in gel polymer diaphragm production were solved, achieving efficient production and stable product quality, and improving the equipment's versatility and ease of operation.
Patent Information
- Application Number
- CN202521422118.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-08
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-08
AI Technical Summary
Existing membrane production equipment cannot meet the special process requirements of gel polymer membranes, making it difficult to achieve uniform spreading, curing and peeling of liquid slurry.
A gel polymer diaphragm casting equipment was designed, including extrusion, forming, drying, peeling, transition and detection units. The mold position is adjusted by servo motor and drive motor, the casting roller forming and drying work together, the cylinder swing arm of the peeling unit flexibly adjusts the peeling angle, the transition roller ensures no deformation during transmission, and the detection unit monitors the thickness in real time.
It improves the production efficiency and product quality of gel polymer membranes, reduces breakage and defective products, enhances the versatility and ease of operation of the equipment, and achieves seamless continuity from extrusion to testing.
Smart Images
Figure CN224675472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy battery raw material production equipment technology, and in particular to a gel polymer diaphragm casting equipment. Background Technology
[0002] Current membrane production technologies are mainly divided into two categories: dry and wet processes. Dry process membrane technology forms a microporous structure through polymer melt extrusion and stretching orientation. The uniaxial stretching process is widely used in the production of thick membranes due to its simple process and low equipment investment. The biaxial stretching process achieves uniform molecular chain arrangement through longitudinal and transverse biaxial stretching, enabling the production of thin, high-performance membranes. Wet process membrane technology (also known as the phase inversion method) involves adding plasticizers to the polymer matrix, followed by extrusion, stretching, and extraction to remove the plasticizers, forming a porous structure. It offers advantages such as uniform pore size distribution and good air permeability, but it has high technical barriers and higher production costs.
[0003] The aforementioned dry and wet processes are suitable for the production of solid polymer membranes, but their core processes are based on the stretching or phase separation of solid preforms and cannot be directly applied to the manufacture of gel polymer membranes. Gel polymer membranes are made from latex-like liquid slurries, and their film-forming process requires a unique "liquid spreading-curing-peeling" procedure: first, the slurry must be uniformly spread on a large-size carrier surface; then, curing and shaping are achieved through gradient temperature control; and finally, the membrane is completely peeled off from the carrier surface. Existing membrane production equipment, not designed for the characteristics of gel-like raw materials, struggles to meet these process requirements.
[0004] To address the aforementioned technical issues, this utility model provides a gel polymer diaphragm casting equipment. Utility Model Content
[0005] The purpose of this invention is to provide a gel polymer diaphragm casting device to solve the problems existing in the prior art.
[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a gel polymer diaphragm casting equipment, comprising:
[0007] Equipment rack;
[0008] The extrusion unit includes a die, which is mounted on the feeding end of the equipment frame via an up-and-down adjusting fixture and a front-and-back adjusting slide rail. The up-and-down adjusting fixture is connected to a servo motor, and the front-and-back adjusting slide rail is connected to a drive motor.
[0009] The forming unit includes a casting roller, which is rotatably connected to the middle of the equipment frame and connected to the casting drive assembly.
[0010] A primary drying unit is used to dry the slurry on the casting rollers;
[0011] The peeling unit includes a film peeling roller, which is mounted on the equipment frame, located on the discharge side of the casting roller, and connected to the peeling drive assembly;
[0012] A secondary drying unit includes a preheating component, which is installed at the downstream end of the equipment frame and includes several sets of preheating rollers and preheating pressure rollers. The preheating pressure rollers are equipped with an adjustment device and a cylinder swing arm.
[0013] The transition unit includes several transition rollers, which are rotatably connected to the equipment frame, located between the stripping unit and the secondary drying unit, and connected to the transition transmission assembly.
[0014] The detection unit includes a thickness gauge, which is mounted on the equipment frame and located downstream of the secondary drying unit.
[0015] The operating unit includes an operating table and a guardrail. The operating table is mounted on the side of the equipment frame, and the guardrail is installed on the edge of the operating table.
[0016] According to the gel polymer diaphragm casting equipment provided by this utility model, the primary drying unit includes a left drying hood and a right drying hood. The left drying hood is divided into a first drying hood and a second drying hood, and the right drying hood is a third drying hood. The main bodies of both the left and right drying hoods are inwardly curved arcs, corresponding to the outer contour of the casting roller. The left drying hood is mounted on the equipment frame via a left-side drying hood sliding rail and a casting roller drying hood vertical adjustment rail. The right drying hood is mounted on the equipment frame via a right-side drying hood sliding rail and a casting roller drying hood vertical adjustment rail. On the frame, the separation and contact with the casting roller are achieved through the slide rail; the first section of the drying hood is connected to the air inlet fan and heating box, the first section of the high-efficiency filter on the left side of the casting roller, and the air duct; the second section of the drying hood is connected to the second section of the air inlet fan and heating box on the left side of the casting roller, the second section of the air inlet high-efficiency filter on the left side of the casting roller, the second section of the exhaust fan on the left side of the casting roller, and the air inlet and exhaust duct of the drying hood; the third section of the drying hood is connected to the third section of the air inlet fan and heating box, the third section of the air inlet high-efficiency filter on the drying hood, the third section of the exhaust fan on the drying hood, and the air inlet and exhaust duct of the drying hood.
[0017] According to the gel polymer diaphragm casting equipment provided by this utility model, the upper and lower adjustment fixture is provided with a lead screw, which is connected to a servo motor for transmission; the casting transmission assembly includes a casting roller transmission motor and a reducer, wherein the reducer is a helical gear reducer.
[0018] According to the gel polymer diaphragm casting equipment provided by this utility model, the casting roller is provided with a water-conducting coil inside, the water-conducting coil is connected to the mold temperature controller, and the surface has a wear-resistant coating and is mirror-polished.
[0019] According to the gel polymer diaphragm casting equipment provided by this utility model, the mold width is 3200mm, and a gasket is provided. The effective film output width can be adjusted to 2200-3000mm through the gasket, and an electric heating temperature control system is provided.
[0020] According to the gel polymer diaphragm casting equipment provided by this utility model, the left drying hood is divided into a first section and a second section, and the right drying hood is a third section, and both adopt an air path design with air inlet in the middle and air return on both sides.
[0021] According to the gel polymer diaphragm casting equipment provided by this utility model, the surface of the diaphragm peeling roller has an anti-stick coating and is an active roller; the peeling drive assembly includes a peeling roller motor.
[0022] According to the gel polymer diaphragm casting equipment provided by this utility model, the preheating roller of the preheating component has a size of 395×3200mm, is arranged in a large "S" shaped corner, and is equipped with a water-passing coil inside, which is connected to the mold temperature controller; the transition transmission component includes a transition roller belt and a transition roller transmission motor, which can drive each transition roller to rotate synchronously and at the same linear speed.
[0023] According to the gel polymer diaphragm casting equipment provided by this utility model, the adjusting device is a reducer with a dial indicator knob, and the cylinder swing arm is used to control the pressing or separating of the preheating roller and the preheating roller.
[0024] The present invention discloses the following technical effects:
[0025] 1) The die of the extrusion unit can be adjusted up and down and back and forth by servo motor and drive motor, which can adapt to the production needs of different specifications of film and improve the versatility of the equipment; at the same time, it ensures the accuracy of the extrusion position and lays the foundation for the accuracy of subsequent molding.
[0026] 2) The synergistic effect of casting roller forming and primary drying completes the initial curing while the film is initially formed, which not only improves production efficiency but also enhances the strength of the film, making it easier for subsequent peeling operations.
[0027] 3) The cylinder swing arm of the peeling unit can flexibly adjust the peeling angle and pressure to ensure that the film is peeled off smoothly from the casting roller, reduce damage caused by improper peeling, and improve the product qualification rate.
[0028] 4) The transition rollers of the transition unit ensure that the film is not deformed during the transport process; the secondary drying unit, through the pressure adjustment of the preheating rollers and combined with secondary drying, achieves full curing and uniform thickness of the film, significantly improving the stability of product quality.
[0029] 5) The thickness gauge in the detection unit monitors the film thickness in real time, which facilitates timely adjustment of process parameters and reduces defective products; the design of the operating table and guardrail improves the ease of operation and safety.
[0030] 6) The seamless design from extrusion to testing reduces manual intervention, lowers operational errors, and improves production continuity and overall efficiency. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0032] Figure 1 This is a schematic diagram of the structure of the gel polymer diaphragm casting equipment of this utility model.
[0033] The components include: 1. Servo motor; 2. Up and down adjustment fixture; 3. Front and rear adjustment slide rail; 4. Mold; 5. Casting roller; 6. Film peeling roller; 7. Drive motor; 8. Transition roller; 9. Transition roller belt; 10. Operating table; 11. Guardrail; 12. Transition roller drive motor; 13. Preheating assembly; 14. Thickness gauge; 16. Adjustment device; 17. Preheating pressure roller; 18. Cylinder swing arm; 19. Third-stage drying hood exhaust fan; 20. Right drying hood; 21. Third-stage drying hood high-efficiency filter. 22. Left side drying hood sliding rail of the casting roller; 23. Third section drying hood inlet fan and heating box; 24. Casting roller transmission assembly; 25. Left drying hood; 26. Right side drying hood sliding rail of the casting roller; 27. Up and down adjustment rail of the casting roller drying hood; 28. Air duct, drying hood inlet and outlet air duct; 29. First section high-efficiency filter on the left side of the casting roller; 30. Second section inlet fan and heating box of the left drying hood of the casting roller; 31. Second section inlet high-efficiency filter of the left drying hood of the casting roller; 32. Second section exhaust fan of the left drying hood of the casting roller; Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0036] Reference Figure 1 This utility model provides a gel polymer diaphragm casting equipment, comprising:
[0037] Equipment rack;
[0038] The extrusion unit includes a mold 4, which is installed at the feeding end of the equipment frame via an up-and-down adjustment fixture 2 and a front-and-back adjustment slide rail 3. The up-and-down adjustment fixture 2 is connected to a servo motor 1, and the front-and-back adjustment slide rail 3 is connected to a drive motor 7.
[0039] The forming unit includes a casting roller 5, which is rotatably connected to the middle of the equipment frame and connected to the casting transmission assembly 24.
[0040] A primary drying unit is used to dry the slurry on the casting roller 5;
[0041] The peeling unit includes a film peeling roller 6, which is mounted on the equipment frame, located on the discharge side of the casting roller 5, and connected to the peeling drive assembly.
[0042] The secondary drying unit includes a preheating component 13, which is installed at the downstream end of the equipment frame and includes several sets of preheating rollers and preheating pressure rollers 17. The preheating pressure rollers 17 are equipped with an adjustment device 16 and a cylinder swing arm 18.
[0043] The transition unit includes several transition rollers 8, which are rotatably connected to the equipment frame, located between the stripping unit and the secondary drying unit, and connected to the transition transmission assembly.
[0044] The detection unit includes a thickness gauge 14, which is mounted on the equipment frame and located downstream of the secondary drying unit.
[0045] The operating unit includes an operating table 10 and a guardrail 11. The operating table 10 is mounted on the side of the equipment frame, and the guardrail 11 is installed on the edge of the operating table 10.
[0046] In operation, the slurry is extruded through the die 4 of the extrusion unit. The vertical position of the die is controlled by the vertical adjustment fixture 2 driven by the servo motor 1, and the front-to-back position is controlled by the front-to-back adjustment slide rail 3 driven by the drive motor 7, ensuring that the extrusion position is accurately adapted to the subsequent molding requirements. The extruded slurry is conveyed to the casting roller 5 of the molding unit. The casting transmission assembly 24 drives the casting roller to rotate, so that the slurry is initially formed into a film prototype on the roller surface. The primary drying unit performs preliminary drying on the film on the casting roller, removing some of the solvent to give the film basic strength, preparing it for subsequent peeling. The pre-dried film is peeled off from the casting roller by the film peeling roller 6 of the peeling unit. The peeling roller achieves smooth peeling through the cylinder swing arm 18 to avoid film breakage. The peeled film is conveyed by the transition roller 8 of the transition unit, ensuring that the film is wrinkle-free and stretch-free during the transmission process, and smoothly enters the next process. After the diaphragm enters the secondary drying unit, it undergoes secondary drying via the preheating rollers of the preheating assembly 13 (further removing residual solvents). Simultaneously, the preheating pressure roller 17 adjusts the pressure under the action of the adjusting device 16 and the cylinder swing arm 18 to press the diaphragm together, ensuring uniform thickness and full curing. The diaphragm after secondary processing is then inspected for thickness by the thickness gauge 14 of the inspection unit, monitoring product dimensional accuracy in real time to ensure compliance with quality standards. Operators control the equipment operation via the control panel 10, and safety railings 11 ensure the safety of the operation process.
[0047] The scheme is further optimized. The primary drying unit includes a left drying hood 25 and a right drying hood 20. The left drying hood 25 is divided into a first drying hood and a second drying hood, and the right drying hood 20 is a third drying hood. The main bodies of both the left and right drying hoods 25 and 20 are inwardly curved, corresponding to the outer contour of the casting roller 5. The left drying hood 25 is mounted on the equipment frame via the left side drying hood sliding rail 22 and the casting roller drying hood up-and-down adjustment rail 27. The right drying hood 20 is mounted on the equipment frame via the right side drying hood sliding rail 26 and the casting roller drying hood up-and-down adjustment rail 27. The separation and bonding with the casting roller 5 are now complete; the first drying hood is connected to the air inlet fan and heating box, the first high-efficiency filter 29 on the left side of the casting roller, and the air duct 28; the second drying hood is connected to the second air inlet fan and heating box 30 on the left side of the casting roller drying hood, the second air inlet high-efficiency filter 31 on the left side of the casting roller drying hood, the second exhaust fan 32 on the left side of the casting roller drying hood, and the air inlet and exhaust duct 28; the third drying hood is connected to the third air inlet fan and heating box 23, the third air inlet high-efficiency filter 21 on the third side of the drying hood, the third exhaust fan 19 on the third side of the drying hood, and the air inlet and exhaust duct 28.
[0048] The scheme is further optimized by installing a lead screw in the up-and-down adjustment fixture 2, which is connected to the servo motor 1 for transmission; the casting plate transmission assembly 24 includes a casting plate roller transmission motor and a reducer, and the reducer is a helical gear reducer.
[0049] The design has been further optimized. The casting roller 5 is equipped with a water-cooling coil inside, which is connected to the mold temperature controller. The surface of the water-cooling coil has a wear-resistant coating and is mirror-polished.
[0050] The design has been further optimized. Mold 4 has a width of 3200mm and is equipped with a gasket. The effective film output width can be adjusted to 2200-3000mm through the gasket, and it is also equipped with an electric heating temperature control system.
[0051] The scheme was further optimized. The left drying hood 25 is divided into the first and second drying hoods, and the right drying hood 20 is the third drying hood. Both adopt the air path design of central air intake and side air return.
[0052] The design has been further optimized. The surface of the film peeling roller 6 has an anti-stick coating and is an active roller. The peeling drive assembly includes a peeling roller motor.
[0053] Further optimization of the scheme: the preheating roller of the preheating component 13 has a size of 395×3200mm and is arranged in a large "S" shaped corner. It is equipped with a water coil inside, which is connected to the mold temperature controller; the transition transmission component includes a transition roller belt 9 and a transition roller drive motor 12, which can drive each transition roller 8 to rotate synchronously and at the same linear speed.
[0054] Further optimization of the scheme: the adjustment device 16 is a reducer with a dial indicator knob, and the cylinder swing arm 18 is used to control the pressing or separation of the preheating roller 17 and the preheating roller.
[0055] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0056] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A gel polymer diaphragm casting apparatus, characterized in that, include: Equipment rack; The extrusion unit includes a mold (4), which is installed on the feed end of the equipment frame via an up-and-down adjustment fixture (2) and a front-and-back adjustment slide rail (3). The up-and-down adjustment fixture (2) is connected to a servo motor (1), and the front-and-back adjustment slide rail (3) is connected to a drive motor (7). The forming unit includes a casting roller (5), which is rotatably connected to the middle of the equipment frame and connected to the casting transmission assembly (24); A primary drying unit is used to dry the slurry on the casting roller (5); The peeling unit includes a film peeling roller (6), which is mounted on the equipment frame, located on the discharge side of the casting roller (5), and connected to the peeling drive assembly; The secondary drying unit includes a preheating component (13), which is installed at the downstream end of the equipment frame and includes several sets of preheating rollers and preheating pressure rollers (17). The preheating pressure rollers (17) are equipped with an adjustment device (16) and a cylinder swing arm (18). The transition unit includes several transition rollers (8), which are rotatably connected to the equipment frame, located between the stripping unit and the secondary drying unit, and connected to the transition transmission assembly; The detection unit includes a thickness gauge (14), which is mounted on the equipment frame and located downstream of the secondary drying unit; The operating unit includes an operating table (10) and a guardrail (11). The operating table (10) is mounted on the side of the equipment frame, and the guardrail (11) is installed on the edge of the operating table (10).
2. The gel polymer diaphragm casting equipment according to claim 1, characterized in that: The primary drying unit includes a left drying hood (25) and a right drying hood (20). The left drying hood (25) is divided into a first drying hood and a second drying hood, and the right drying hood (20) is a third drying hood. The main bodies of the left drying hood (25) and the right drying hood (20) are both inwardly curved arcs, corresponding to the outer contour of the casting roller (5). The left drying hood (25) is mounted on the equipment frame via a left-side drying hood sliding rail (22) and a casting roller drying hood up-and-down adjustment rail (27). The right drying hood (20) is mounted on the equipment frame via a right-side drying hood sliding rail (26) and a casting roller drying hood up-and-down adjustment rail (27). To achieve separation and bonding with the casting roller (5); the first section of the drying hood is connected to an air inlet fan and heating box, a first section of high-efficiency filter (29) on the left side of the casting roller, and an air duct (28); the second section of the drying hood is connected to a second section of air inlet fan and heating box (30) on the left side of the casting roller, a second section of high-efficiency filter (31) on the left side of the casting roller, a second section of exhaust fan (32) on the left side of the casting roller, and an air inlet and exhaust duct (28) for the drying hood; the third section of the drying hood is connected to a third section of air inlet fan and heating box (23), a third section of high-efficiency filter (21) on the drying hood, a third section of exhaust fan (19) on the drying hood, and an air inlet and exhaust duct (28) for the drying hood.
3. The gel polymer diaphragm casting equipment according to claim 1, characterized in that: The up-and-down adjustment fixture (2) is equipped with a lead screw, which is connected to the servo motor (1) for transmission; the casting plate transmission assembly (24) includes a casting plate roller transmission motor and a reducer, and the reducer is a helical gear reducer.
4. The gel polymer diaphragm casting equipment according to claim 1, characterized in that: The casting roller (5) is equipped with a water-cooling coil inside. The water-cooling coil is connected to the mold temperature controller and has a wear-resistant coating on its surface and is mirror-polished.
5. The gel polymer diaphragm casting equipment according to claim 1, characterized in that: The mold (4) is 3200mm wide and is equipped with a gasket. The effective film width can be adjusted to 2200-3000mm through the gasket, and it is equipped with an electric heating temperature control system.
6. The gel polymer diaphragm casting equipment according to claim 2, characterized in that: The left drying hood (25) is divided into a first section and a second section, and the right drying hood (20) is a third section, and both adopt an air path design with air intake in the middle and air return on both sides.
7. The gel polymer diaphragm casting equipment according to claim 1, characterized in that: The film peeling roller (6) has an anti-stick coating on its surface and is an active roller; the peeling drive assembly includes a peeling roller motor.
8. The gel polymer diaphragm casting equipment according to claim 1, characterized in that: The preheating roller of the preheating component (13) is 395×3200mm in size and is arranged in a large "S" shaped corner. It is equipped with a water-cooling coil inside, which is connected to the mold temperature controller. The transition transmission component includes a transition roller belt (9) and a transition roller drive motor (12), which can drive each transition roller (8) to rotate synchronously and at the same linear speed.
9. The gel polymer diaphragm casting equipment according to claim 1, characterized in that: The adjusting device (16) is a reducer with a dial indicator knob, and the cylinder swing arm (18) is used to control the pressing or separating of the preheating roller (17) and the preheating roller.