Molding equipment and method for producing modified polyphenylene sulfide film

Abstract

The invention provides molding equipment and a molding method for producing a modified polyphenylene sulfide film, and relates to the technical field of lithium battery diaphragms. The forming equipment for producing the modified polyphenylene sulfide film comprises a casting mechanism rack, a mounting rack arranged on the casting mechanism rack and a cleaning roller for removing precipitates and adhered particles on a formed diaphragm. Through linkage cooperation of the first positioning structure and the second positioning structure, rapid and accurate positioning and locking of the cleaning roller are achieved, the problem of jacking failure is solved, meanwhile, a locking mechanism is simplified, the equipment assembling and maintaining difficulty is remarkably reduced, the positioning reliability is improved, and through cooperative control of the double-station rotating base and the magnetic powder clutch, the working efficiency is improved. Rapid switching between the main roller and the standby roller is achieved, the problem that in the prior art, production efficiency is lost due to the fact that the cleaning roller is dismounted after shutdown is solved, and instantaneity of replacement operation of the cleaning roller and operation stability of equipment in the continuous production process are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery separator, and specifically to a forming device and method for producing modified polyphenylene sulfide films. Background Art

[0002] Polyphenylene sulfide (PPS), as a high-performance thermoplastic resin, has characteristics such as high mechanical strength, high temperature resistance, chemical corrosion resistance, excellent flame retardancy, and outstanding electrical insulation performance. In recent years, through modification means such as friction performance, conductivity, and rheological performance, it has gradually extended from traditional electronic and automotive fields to emerging scenarios such as 5G communication and new energy vehicles. In the field of lithium battery separators, modified PPS is trying to break through the limitations of traditional polyolefin materials - the latter is prone to high-temperature shrinkage problems due to poor electrolyte wettability (contact angle exceeding 40°) and insufficient thermal stability (melting temperature below 160°C). The current mainstream technology is to melt-blend PPS resin with a modifier at high temperature and then cast it into a film, combine unidirectional or bidirectional stretching processes to form a nano-porous structure, and then coat PVS material to prepare a composite separator. In the casting forming stage, the surface precipitates generated during the cooling process need to be continuously cleaned by a cleaning roller. The increasing demand for lithium battery separators has led to an increase in the usage frequency of the cleaning roller, an accelerated wear rate during continuous production, and the downtime losses caused by frequent replacement have become the key bottleneck restricting the improvement of production efficiency.

[0003] Therefore, a disclosed technology proposes a production device and production process for lithium battery separators (Chinese Patent Publication No. CN118305946B), belonging to the technical field of lithium battery separator production, including a cleaning roller frame and a cleaning roller, a locking member, and a bearing support installed on a casting frame. The cleaning roller frame is provided with a swing arm support shaft for installing a swing arm mechanism. One end of the swing arm mechanism installs an adjustment seat, and the other end is connected to a cylinder. The locking member is arranged on the swing arm mechanism to control the fixation and separation of the adjustment seat and the swing arm mechanism. Both ends of the cleaning roller are installed with bearing supports for removing precipitates and adhering particles on the formed separator, and the bearing supports are installed on the adjustment seat. In this disclosed technology, a detachable cleaning roller frame is installed in the reserved space of the casting frame, and a cleaning roller that can swing is installed on the cleaning roller frame and is stable during operation and can be replaced without disassembly when tilted, improving the replacement efficiency;

[0004] However, in the actual application of the above disclosed technology, there are still the following drawbacks: After the locking member inserts the guide rod into the limit hole, the adjustment seat is clamped by two groups of guide rods. However, when the guide rod is inserted into the adjustment seat, there is a risk of jacking up the adjustment seat, resulting in failure to clamp the adjustment seat. Moreover, the overall structure composed of multiple components such as the linkage between the locking rod and the cam groove disc and the linkage between the locking rod and two groups of guide rods is too complex, which is not conducive to assembly and maintenance. Its improvement only limits to shortening the time for tightening the adjustment seat with screws in the traditional technology, and the actual improvement effect is not significant.

[0005] Therefore, it is necessary to further improve and optimize its technology to improve the replacement efficiency of the cleaning roller. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides a forming device and method for producing modified polyphenylene sulfide films, which solves the problems of clamping failure and low replacement efficiency in the replacement of the cleaning roller in the existing forming device and method for producing modified polyphenylene sulfide films.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A forming device for producing modified polyphenylene sulfide films includes a casting mechanism frame, a mounting frame provided on the casting mechanism frame, and a cleaning roller for removing precipitates and adhering particles on the forming diaphragm. The side view projection of the mounting frame is in a U-shape with the opening facing upwards. A second main shaft is rotatably connected between the front wall and the rear wall of the mounting frame. Two sets of rotating seats distributed front and rear are fixedly connected to the outer wall of the second main shaft. Two sets of support seats are symmetrically fixedly connected to the outer circumference of the rotating seats. A bearing seat is provided at one end of the support seat away from the rotating seat. A first positioning structure for positioning is provided between the bearing seat and the support seat. A driven shaft is rotatably connected between two sets of the four bearing seats that are opposite to each other front and rear. The cleaning roller is fixedly connected to the outer wall of the driven shaft. A first main shaft is rotatably connected to the rear wall of the mounting frame and located below the second main shaft. A rotary drive structure for driving the first main shaft is provided on the rear wall of the mounting frame. A first transmission structure for transmission is provided between the first main shaft and the second main shaft. A second transmission structure for transmission is provided between the first main shaft and the driven shaft. A second positioning structure for positioning the position of the support seat is provided between the mounting frame and the support seat.

[0008] Preferably, the first positioning structure includes a positioning block, a positioning groove, a first positioning hole, a first positioning pin, and a first electric telescopic rod. The positioning block is provided on the side of the bearing seat facing the support seat. The positioning groove is provided on the side of the support seat away from the rotating seat. The inner cavity size of the positioning groove is adapted to the positioning block. The first positioning hole is provided in the inner wall of the positioning block in a left-right through manner. A sliding hole in a left-right through manner is provided in the inner wall of the support seat. When the positioning block is connected to the inner side wall of the positioning groove, the axes of the sliding hole and the first positioning hole are collinear. The first electric telescopic rod is fixedly connected to the side wall of the support seat. The first electric telescopic rod is collinear with the axis of the sliding hole. The extending shaft of the first electric telescopic rod extends into the sliding hole. The first positioning pin is fixedly connected to the end of the extending shaft of the first electric telescopic rod. The inner diameter of the sliding hole and the inner diameter of the first positioning hole are both adapted to the outer diameter of the first positioning pin.

[0009] Preferably, a second chamfer is provided at one end of the positioning block away from the bearing seat, first chamfers are provided at both left and right ends of the first positioning hole, a third chamfer is provided at the notch of the positioning groove, and a first arc head is provided at one end of the first positioning pin away from the first electric telescopic rod.

[0010] Preferably, the rotation driving structure includes a fixed seat and a servo motor. The fixed seat is fixedly connected to the rear wall of the mounting frame, the servo motor is fixedly connected to the upper wall of the fixed seat, the rear end of the first main shaft penetrates through the rear wall of the mounting frame and extends to the rear side of the mounting frame, and a coupling is connected between the end of the first main shaft extending to the rear side of the mounting frame and the servo motor.

[0011] Preferably, the first transmission structure includes a first synchronous pulley, a second synchronous pulley and a synchronous belt. A magnetic powder clutch is provided on the outer wall of the first main shaft extending to the rear side of the mounting frame, the first synchronous pulley is fixedly connected to the outer wall of the magnetic powder clutch, the second synchronous pulley is fixedly connected to one end of the second main shaft extending to the rear side of the mounting frame, the second synchronous pulley and the first synchronous pulley are vertically corresponding, and the synchronous belt is sleeved between the outer walls of the second synchronous pulley and the first synchronous pulley.

[0012] Preferably, the magnetic powder clutch is electrically connected through a conductive slip ring.

[0013] Preferably, the second transmission structure includes a driving gear and two groups of driven gears. The driving gear is fixedly connected to the front end of the first main shaft, and the two groups of driven gears are respectively fixedly connected to the rear ends of a group of driven shafts, and any one of the two groups of driven gears remains meshed with the driving gear.

[0014] Preferably, the second positioning structure includes two groups of second electric telescopic rods and two groups of second positioning pins. The two groups of second electric telescopic rods are respectively fixedly connected to the front wall and the rear wall of the mounting frame. The extending shaft ends of the two groups of second electric telescopic rods respectively penetrate through the front wall and the rear wall of the mounting frame and extend into the mounting frame. The two groups of second positioning pins are respectively fixedly connected to the extending shaft ends of a group of second electric telescopic rods. Second positioning holes that penetrate through the front and rear are provided on the inner walls of the four groups of support seats. The distance between the axis of the second positioning pin and the axis of the second main shaft is equal to the distance between the axis of the second positioning hole and the axis of the second main shaft, and the inner diameter of the second positioning hole is adapted to the outer diameter of the second positioning pin.

[0015] Preferably, a second arc head is provided at one end of the second positioning pin away from the second electric telescopic rod, and fourth chamfers are provided at both axial ends of the second positioning hole.

[0016] A forming method for a forming device for producing modified polyphenylene sulfide films uses the above-mentioned forming device for producing modified polyphenylene sulfide films for forming. The forming method includes the following steps:

[0017] S1. Installation: Fix two sets of cleaning rollers on the outer wall of a set of driven shafts respectively. Install a set of bearing seats at both ends of each set of driven shafts. Insert the positioning blocks of the bearing seats into the positioning grooves on the support seats. Achieve preliminary alignment through the guiding action of the second chamfer and the third chamfer, and then drive the first positioning pin to insert into the first positioning hole by the first electric telescopic rod to form the final locking. After both sets of cleaning rollers are installed, it forms a form of one main roller and one spare roller. The main roller is at the working position below the second main shaft, and the spare roller is at the standby position above the second main shaft;

[0018] S2. Use: Drive the second positioning pin to insert into the second positioning hole on the inner wall of the support seat where the main roller is installed by the second electric telescopic rod. Fix the support seat and the mounting frame through the second electric telescopic rod and the second positioning pin. The servo motor drives the first main shaft to rotate. The first main shaft drives the driven shaft with the main roller to rotate through the driving gear and the driven gear, thereby driving the main roller to rotate to form an action of removing the precipitates and adhered particles on the formed diaphragm. During this process, the magnetic powder clutch is in a power-off state, and there is no power transmission between the first synchronous pulley and the first main shaft. Only drive the driven shaft to rotate through the driving gear and the driven gear. When the servo motor drives the first main shaft to rotate, the driving gear remains engaged with the driven gear corresponding to the current main roller to drive the driven shaft to drive the main roller to rotate;

[0019] S3. Replacement: The second electric telescopic rod corresponding to the main roller retracts, driving the second positioning pin to withdraw from the second positioning hole; The magnetic powder clutch is energized through the slip ring to rigidly connect the first synchronous pulley and the first main shaft; The servo motor drives the first main shaft to rotate, driving the second main shaft to rotate 180 degrees through the first synchronous pulley, the synchronous belt and the second synchronous pulley, so that the spare roller switches to the working position and the original main roller switches to the position to be replaced; The second electric telescopic rod pushes the second positioning pin to insert into the second positioning hole of the support seat corresponding to the new main roller to complete the positioning; The magnetic powder clutch is powered off, and the first main shaft resumes the state of driving the new main roller to rotate through the second transmission structure; The first electric telescopic rod corresponding to the original main roller retracts, and the first positioning pin withdraws from the first positioning hole to release the locking between the bearing seat and the support seat; After the locking is released, vertically lift out the bearing seat and the driven shaft of the original main roller, install a new cleaning roller as the spare roller, and repeat step S1 to complete the installation.

[0020] The present invention provides a forming device and method for producing modified polyphenylene sulfide films. It has the following beneficial effects:

[0021] 1. Compared with the prior art, the forming equipment and method for producing modified polyphenylene sulfide films achieve rapid and precise positioning and locking of the cleaning roller through the linkage cooperation of the first positioning structure and the second positioning structure, solve the problem of jacking failure caused by uneven force when the traditional guide rod clamps the adjustment seat, simplify the locking mechanism at the same time, significantly reduce the equipment assembly and maintenance difficulty, and improve the positioning reliability.

[0022] 2. Compared with the prior art, the forming equipment and method for producing modified polyphenylene sulfide films realize the rapid switching between the main roller and the spare roller through the coordinated control of the double-station rotating seat and the magnetic powder clutch, solve the problem of production efficiency loss caused by shutting down the machine to disassemble and clean the roller in the traditional technology, and ensure the instantaneity of the cleaning roller replacement operation and the equipment operation stability during the continuous production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 of the present invention Figure 1 is a partial enlarged view at A in;

[0025] Figure 3 is a partial side cross-sectional view of the connection structure of the mounting frame, the servo motor and the second electric telescopic rod of the present invention;

[0026] Figure 4 of the present invention Figure 3 is a partial enlarged view at B in;

[0027] Figure 5 is a partial cross-sectional view of the bearing seat and positioning block structure of the present invention;

[0028] Figure 6 is a partial cross-sectional view of the connection structure of the support seat and the first electric telescopic rod of the present invention;

[0029] Figure 7 is a partial cross-sectional view of the connection structure of the bearing seat and the support seat of the present invention;

[0030] Figure 8 is a cross-sectional view of the second positioning hole structure in the support seat of the present invention.

[0031] Among them, 1. mounting frame; 2. second main shaft; 3. rotating seat; 4. support seat; 5. bearing seat; 6. driven shaft; 7. driven gear; 8. first main shaft; 9. driving gear; 10. first electric telescopic rod; 11. fixed seat; 12. servo motor; 13. conductive slip ring; 14. magnetic powder clutch; 15. first synchronous pulley; 16. synchronous belt; 17. second synchronous pulley; 18. positioning block; 19. first positioning hole; 20. first chamfer; 21. second chamfer; 22. positioning groove; 23. third chamfer; 24. sliding hole; 25. first positioning pin; 26. first arc head; 27. cleaning roller; 28. second positioning hole; 29. second electric telescopic rod; 30. second positioning pin; 31. second arc head; 32. fourth chamfer. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment:

[0034] As Figures 1 to 8 shown, the embodiment of the present invention provides a forming device for producing modified polyphenylene sulfide films, including a casting mechanism frame, a mounting frame 1 arranged on the casting mechanism frame, and a cleaning roller 27 for removing precipitates and adhering particles on the formed diaphragm. The side view projection of the mounting frame 1 is in a U shape with the opening facing upwards. A second main shaft 2 is rotatably connected between the front wall and the rear wall of the mounting frame 1. Two sets of rotating seats 3 distributed front and rear are fixedly connected to the outer wall of the second main shaft 2. Two sets of support seats 4 are symmetrically fixedly connected to the outer circumferential wall of the rotating seat 3;

[0035] To achieve the precise locking of the cleaning roller 27 and the support base 4 and avoid the risk of the adjustment base being jacked up, a bearing block 5 is provided at one end of the support base 4 away from the rotating base 3. A first positioning structure for positioning is provided between the bearing block 5 and the support base 4. The first positioning structure includes a positioning block 18, a positioning groove 22, a first positioning hole 19, a first positioning pin 25, and a first electric telescopic rod 10. The positioning block 18 is provided on the side of the bearing block 5 facing the support base 4. The positioning groove 22 is provided on the side of the support base 4 away from the rotating base 3. The inner cavity size of the positioning groove 22 is adapted to the positioning block 18. The first positioning hole 19 is provided in a left-right through manner on the inner wall of the positioning block 18. A sliding hole 24 in a left-right through manner is provided on the inner wall of the support base 4. When the positioning block 18 is connected to the inner side wall of the positioning groove 22, the axes of the sliding hole 24 and the first positioning hole 19 are collinear. The first electric telescopic rod 10 is fixedly connected to the side wall of the support base 4, and the axis of the first electric telescopic rod 10 is collinear with the sliding hole 24. The extending shaft of the first electric telescopic rod 10 extends into the sliding hole 24. The first positioning pin 25 is fixedly connected to the end of the extending shaft of the first electric telescopic rod 10. The inner diameter of the sliding hole 24 and the inner diameter of the first positioning hole 19 are both adapted to the outer diameter of the first positioning pin 25;

[0036] When the first electric telescopic rod 10 pushes the first positioning pin 25 to linearly insert into the first positioning hole 19 along the sliding hole 24, a vertical lock perpendicular to the movement direction of the positioning block 18 is formed, completely eliminating the potential risk of jacking failure caused by the lateral clamping of the traditional guide rod;

[0037] To improve the alignment accuracy between the first positioning pin 25 and the first positioning hole 19 and between the positioning block 18 and the positioning groove 22, a second chamfer 21 is provided at one end of the positioning block 18 away from the bearing block 5. First chamfers 20 are provided at both the left and right ends of the first positioning hole 19. A third chamfer 23 is provided at the mouth of the positioning groove 22. A first arc head 26 is provided at one end of the first positioning pin 25 away from the first electric telescopic rod 10;

[0038] When the bearing block 5 moves towards the support base 4, the guiding action of the inclined surfaces of the second chamfer 21 and the third chamfer 23 can automatically correct the insertion angle of the positioning block 18. At the same time, the cooperation between the first arc head 26 and the first chamfer 20 reduces the probability of pin hole misalignment and jamming;

[0039] To achieve the rapid switching of the main and standby cleaning rollers 27, a driven shaft 6 is rotatably connected between two sets of the four sets of bearing seats 5 that are opposite to each other front and back. The cleaning roller 27 is fixedly connected to the outer wall of the driven shaft 6. A first main shaft 8 is rotatably connected to the lower side of the second main shaft 2 on the rear wall of the mounting frame 1. A rotary drive structure for driving the first main shaft 8 is provided on the rear wall of the mounting frame 1. The rotary drive structure includes a fixed seat 11 and a servo motor 12. The fixed seat 11 is fixedly connected to the rear wall of the mounting frame 1, and the servo motor 12 is fixedly connected to the upper wall of the fixed seat 11. The rear end of the first main shaft 8 penetrates through the rear wall of the mounting frame 1 and extends to the rear side of the mounting frame 1. The end of the first main shaft 8 extending to the rear side of the mounting frame 1 is connected to the servo motor 12 through a coupling; a first transmission structure for transmission is provided between the first main shaft 8 and the second main shaft 2. The first transmission structure includes a first synchronous pulley 15, a second synchronous pulley 17, and a synchronous belt 16. A magnetic powder clutch 14 is provided on the outer wall of the first main shaft 8 extending to the rear side of the mounting frame 1. The first synchronous pulley 15 is fixedly connected to the outer wall of the magnetic powder clutch 14. The second synchronous pulley 17 is fixedly connected to one end of the second main shaft 2 extending to the rear side of the mounting frame 1. The second synchronous pulley 17 and the first synchronous pulley 15 are vertically corresponding to each other, and the synchronous belt 16 is sleeved between the outer wall of the second synchronous pulley 17 and the outer wall of the first synchronous pulley 15; a second transmission structure for transmission is provided between the first main shaft 8 and the driven shaft 6. The second transmission structure includes a driving gear 9 and two driven gears 7. The driving gear 9 is fixedly connected to the front end of the first main shaft 8, and the two driven gears 7 are respectively fixedly connected to the rear ends of a set of driven shafts 6. Any one of the two driven gears 7 remains meshed with the driving gear 9;

[0040] The servo motor 12 is connected to the first main shaft 8 through a coupling and can directly drive the first main shaft 8 to rotate; during the switching operation, the magnetic powder clutch 14 is electrified, and the servo motor 12 drives the first main shaft 8 to drive the second main shaft 2 to rotate 180 degrees through the first transmission structure, so that the standby cleaning roller 27 is switched from the standby position to the working position, and the whole process does not require manual operation. During the cleaning operation, the magnetic powder clutch 14 is de-energized, and the servo motor 12 drives the first main shaft 8 to drive the driven shaft 6 corresponding to the main roller to rotate through the second transmission structure;

[0041] To ensure the stable power supply of the magnetic powder clutch 14 in the rotating state, the magnetic powder clutch 14 is electrically connected through a conductive slip ring 13;

[0042] When the second main shaft 2 drives the magnetic powder clutch 14 to rotate, the conductive slip ring 13 continuously transmits electric energy to the magnetic powder clutch 14 to maintain its electromagnetic adsorption function and ensure the reliability of the main and standby roller switching operation;

[0043] In order to simplify the fixing structure of the support base 4 and the mounting frame 1, a second positioning structure for positioning the position of the support base 4 is provided between the mounting frame 1 and the support base 4. The second positioning structure includes two groups of second electric telescopic rods 29 and two groups of second positioning pins 30. The two groups of second electric telescopic rods 29 are respectively fixedly connected to the front wall and the rear wall of the mounting frame 1. The extending shaft ends of the two groups of second electric telescopic rods 29 respectively penetrate through the front wall and the rear wall of the mounting frame 1 and extend into the interior of the mounting frame 1. The two groups of second positioning pins 30 are respectively fixedly connected to the extending shaft ends of one group of second electric telescopic rods 29. Second positioning holes 28 that penetrate through the front and rear are provided on the inner walls of the four groups of support bases 4. The distance between the axis of the second positioning pin 30 and the axis of the second main shaft 2 is equal to the distance between the axis of the second positioning hole 28 and the axis of the second main shaft 2. The inner diameter of the second positioning hole 28 is adapted to the outer diameter of the second positioning pin 30;

[0044] When the second electric telescopic rod 29 pushes the second positioning pin 30 to insert into the second positioning hole 28, an axial rigid constraint between the support base 4 and the mounting frame 1 is directly formed. Compared with the traditional cam groove disc linkage mechanism, the number of locking components is reduced by more than 80%;

[0045] In order to improve the alignment accuracy between the second positioning pin 30 and the second positioning hole 28, a second arc head 31 is provided at one end of the second positioning pin 30 away from the second electric telescopic rod 29. Fourth chamfers 32 are provided at both axial ends of the second positioning hole 28;

[0046] The cooperation between the second arc head 31 and the fourth chamfer 32 reduces the probability of pin hole misalignment and jamming.

[0047] A forming method for a forming device for producing modified polyphenylene sulfide films uses the above-mentioned forming device for producing modified polyphenylene sulfide films for forming. The forming method includes the following steps:

[0048] S1. Installation: Fix the two groups of cleaning rollers 27 on the outer wall of one group of driven shafts 6 respectively. A bearing seat 5 is installed at each end of each group of driven shafts 6. Insert the positioning block 18 of the bearing seat 5 into the positioning groove 22 on the support base 4. Preliminary alignment is achieved through the guiding action of the second chamfer 21 and the third chamfer 23. Then, drive the first positioning pin 25 to insert into the first positioning hole 19 by the first electric telescopic rod 10 to form a final lock. After the installation of the two groups of cleaning rollers 27 is completed, a form of one main roller and one standby roller is formed. The main roller is in the working position below the second main shaft 2, and the standby roller is in the standby position above the second main shaft 2;

[0049] S2. Use: Drive the second positioning pin 30 to insert into the second positioning hole 28 on the inner wall of the support seat 4 for installing the main roller through the second electric telescopic rod 29, and fix the support seat 4 to the mounting frame 1 through the second electric telescopic rod 29 and the second positioning pin 30. The servo motor 12 drives the first main shaft 8 to rotate. The first main shaft 8 drives the driven shaft 6 with the main roller installed to rotate through the driving gear 9 and the driven gear 7, thereby driving the main roller to rotate to form an action of removing the precipitates and adhering particles on the formed diaphragm. During this process, the magnetic powder clutch 14 is in a power-off state, and there is no power transmission between the first synchronous pulley 15 and the first main shaft 8. Only the driven shaft 6 is driven to rotate through the driving gear 9 and the driven gear 7. When the servo motor 12 drives the first main shaft 8 to rotate, the driving gear 9 remains engaged with the driven gear 7 corresponding to the current main roller, driving the driven shaft 6 to drive the main roller to rotate;

[0050] S3. Replacement: The second electric telescopic rod 29 corresponding to the main roller retracts, driving the second positioning pin 30 to withdraw from the second positioning hole 28; the magnetic powder clutch 14 is energized through the slip ring 13 to rigidly connect the first synchronous pulley 15 and the first main shaft 8; the servo motor 12 drives the first main shaft 8 to rotate, and drives the second main shaft 2 to rotate 180 degrees through the first synchronous pulley 15, the synchronous belt 16 and the second synchronous pulley 17, so that the spare roller is switched to the working position and the original main roller is switched to the position to be replaced; the second electric telescopic rod 29 pushes the second positioning pin 30 to insert into the second positioning hole 28 of the support seat 4 corresponding to the new main roller to complete the positioning; the magnetic powder clutch 14 is powered off, and the first main shaft 8 resumes the state of driving the new main roller to rotate through the second transmission structure; the first electric telescopic rod 10 corresponding to the original main roller retracts, and the first positioning pin 25 withdraws from the first positioning hole 19 to release the locking between the bearing seat 5 and the support seat 4; after the locking is released, the bearing seat 5 and the driven shaft 6 of the original main roller are vertically taken out upward, and a new cleaning roller 27 is installed as the spare roller, and step S1 is repeated to complete the installation.

[0051] Working principle: When the first electric telescopic rod 10 pushes the first positioning pin 25 to linearly insert into the first positioning hole 19 along the sliding hole 24, a vertical lock perpendicular to the moving direction of the positioning block 18 is formed, completely eliminating the potential risk of jacking failure caused by the lateral clamping of the traditional guide rod;

[0052] To improve the alignment accuracy between the first positioning pin 25 and the first positioning hole 19, and between the positioning block 18 and the positioning groove 22, a second chamfer 21 is provided at one end of the positioning block 18 away from the bearing seat 5, first chamfers 20 are provided at the orifices of the left and right ends of the first positioning hole 19, a third chamfer 23 is provided at the orifice of the positioning groove 22, and a first arc head 26 is provided at one end of the first positioning pin 25 away from the first electric telescopic rod 10; the servo motor 12 is connected to the first main shaft 8 through a coupling and can directly drive the first main shaft 8 to rotate; during the switching operation, the magnetic powder clutch 14 is energized, and the servo motor 12 drives the first main shaft 8 to drive the second main shaft 2 to rotate 180 degrees through the first transmission structure, so that the standby cleaning roller 27 is switched from the standby position to the working position, and the whole process does not require manual operation. During the cleaning operation, the magnetic powder clutch 14 is de-energized, and the servo motor 12 drives the first main shaft 8 to drive the driven shaft 6 corresponding to the main roller to rotate through the second transmission structure; when the second main shaft 2 drives the magnetic powder clutch 14 to rotate, the conductive slip ring 13 continuously transmits electric energy to the magnetic powder clutch 14 to maintain its electromagnetic adsorption function and ensure the reliability of the main and standby roller switching operation; when the second electric telescopic rod 29 pushes the second positioning pin 30 into the second positioning hole 28, an axial rigid constraint between the support seat 4 and the mounting bracket 1 is directly formed. Compared with the traditional cam groove disc linkage mechanism, the number of locking components is reduced by more than 80%; the cooperation between the second arc head 31 and the fourth chamfer 32 reduces the probability of pin hole misalignment and jamming.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand 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 molding device for producing modified polyphenylene sulfide films, characterized in that: It includes a casting mechanism frame, a mounting frame (1) arranged on the casting mechanism frame, and a cleaning roller (27) for removing precipitates and adhering particles on the formed diaphragm. The side view projection of the mounting frame (1) is in a U-shape with the opening facing upwards. A second main shaft (2) is rotatably connected between the front wall and the rear wall of the mounting frame (1). Two sets of rotating seats (3) distributed front and back are fixedly connected to the outer wall of the second main shaft (2). Two sets of support seats (4) are symmetrically fixedly connected to the outer circumferential wall of the rotating seat (3). A bearing seat (5) is arranged at one end of the support seat (4) away from the rotating seat (3). A first positioning structure for positioning is arranged between the bearing seat (5) and the support seat (4). A driven shaft (6) is rotatably connected between two sets of the four bearing seats (5) that are opposite to each other front and back. The cleaning roller (27) is fixedly connected to the outer wall of the driven shaft (6). A first main shaft (8) is rotatably connected to the rear wall of the mounting frame (1) and is located below the second main shaft (2). A rotary drive structure for driving the first main shaft (8) is arranged on the rear wall of the mounting frame (1). A first transmission structure for transmission is arranged between the first main shaft (8) and the second main shaft (2). A second transmission structure for transmission is arranged between the first main shaft (8) and the driven shaft (6). A second positioning structure for positioning the position of the support seat (4) is arranged between the mounting frame (1) and the support seat (4).

2. The molding device for producing modified polyphenylene sulfide films according to claim 1, wherein: The first positioning structure includes a positioning block (18), a positioning groove (22), a first positioning hole (19), a first positioning pin (25), and a first electric telescopic rod (10). The positioning block (18) is arranged on the side of the bearing seat (5) facing the support seat (4). The positioning groove (22) is arranged on the side of the support seat (4) away from the rotating seat (3). The inner cavity size of the positioning groove (22) is adapted to the positioning block (18). The first positioning hole (19) is arranged through the left and right sides of the inner wall of the positioning block (18). A sliding hole (24) that penetrates through the left and right sides is arranged on the inner wall of the support seat (4). When the inner side walls of the positioning block (18) and the positioning groove (22) are connected, the axes of the sliding hole (24) and the first positioning hole (19) are collinear. The first electric telescopic rod (10) is fixedly connected to the side wall of the support seat (4). The first electric telescopic rod (10) is collinear with the axis of the sliding hole (24). The extending shaft of the first electric telescopic rod (10) extends into the interior of the sliding hole (24). The first positioning pin (25) is fixedly connected to the end of the extending shaft of the first electric telescopic rod (10). The inner diameter of the sliding hole (24) and the inner diameter of the first positioning hole (19) are both adapted to the outer diameter of the first positioning pin (25).

3. The molding equipment for producing modified polyphenylene sulfide films according to claim 2, characterized in that: A second chamfer (21) is arranged at one end of the positioning block (18) away from the bearing seat (5). First chamfers (20) are arranged at the orifices at both left and right ends of the first positioning hole (19). A third chamfer (23) is arranged at the orifice of the positioning groove (22). A first arc head (26) is arranged at one end of the first positioning pin (25) away from the first electric telescopic rod (10).

4. The molding device for producing modified polyphenylene sulfide films according to claim 3, characterized in that: The rotation drive structure includes a fixed seat (11) and a servo motor (12). The fixed seat (11) is fixedly connected to the rear wall of the mounting frame (1), and the servo motor (12) is fixedly connected to the upper wall of the fixed seat (11). The rear end of the first main shaft (8) penetrates through the rear wall of the mounting frame (1) and extends to the rear side of the mounting frame (1). The end of the first main shaft (8) extending to the rear side of the mounting frame (1) is connected to the servo motor (12) through a coupling.

5. The forming device for producing modified polyphenylene sulfide films according to claim 4, characterized in that: The first transmission structure includes a first synchronous pulley (15), a second synchronous pulley (17), and a synchronous belt (16). A magnetic powder clutch (14) is arranged on the outer wall of the first main shaft (8) extending to the rear side of the mounting frame (1). The first synchronous pulley (15) is fixedly connected to the outer wall of the magnetic powder clutch (14). The second synchronous pulley (17) is fixedly connected to one end of the second main shaft (2) extending to the rear side of the mounting frame (1). The second synchronous pulley (17) corresponds to the first synchronous pulley (15) vertically, and the synchronous belt (16) is sleeved between the outer walls of the second synchronous pulley (17) and the first synchronous pulley (15).

6. The molding device for producing modified polyphenylene sulfide-based films according to claim 5, characterized in that: The magnetic powder clutch (14) is electrically connected through a conductive slip ring (13).

7. The forming device for producing modified polyphenylene sulfide films according to claim 6, characterized in that: The second transmission structure includes a driving gear (9) and two groups of driven gears (7). The driving gear (9) is fixedly connected to the front end of the first main shaft (8). Two groups of the driven gears (7) are respectively fixedly connected to the rear ends of a group of driven shafts (6). Any one of the two groups of the driven gears (7) is kept meshed with the driving gear (9).

8. The molding device for producing modified polyphenylene sulfide-based films according to claim 7, characterized in that: The second positioning structure includes two groups of second electric telescopic rods (29) and two groups of second positioning pins (30). The two groups of the second electric telescopic rods (29) are respectively fixedly connected to the front wall and the rear wall of the mounting frame (1). The extending shaft ends of the two groups of the second electric telescopic rods (29) respectively penetrate through the front wall and the rear wall of the mounting frame (1) and both extend into the interior of the mounting frame (1). The two groups of the second positioning pins (30) are respectively fixedly connected to the extending shaft ends of a group of the second electric telescopic rods (29). Second positioning holes (28) that penetrate through from front to back are arranged on the inner walls of the four groups of support seats (4). The distance between the axis of the second positioning pin (30) and the axis of the second main shaft (2) is equal to the distance between the axis of the second positioning hole (28) and the axis of the second main shaft (2). The inner diameter of the second positioning hole (28) is adapted to the outer diameter of the second positioning pin (30).

9. The forming device for producing modified polyphenylene sulfide films according to claim 8, characterized in that: A second arc head (31) is arranged at one end of the second positioning pin (30) away from the second electric telescopic rod (29). Fourth chamfers (32) are arranged at both axial port parts of the second positioning hole (28).

10. A forming method for a forming device for producing modified polyphenylene sulfide films, which uses a forming device for producing modified polyphenylene sulfide films as described in any one of claims 1 to 9 for forming, characterized in that: The forming method includes the following steps: S1. Installation: Fix two sets of cleaning rollers (27) on the outer wall of a set of driven shafts (6) respectively. Install a set of bearing seats (5) at both ends of each set of driven shafts (6). Insert the positioning blocks (18) of the bearing seats (5) into the positioning grooves (22) on the support seats (4). Through the guiding action of the second chamfer (21) and the third chamfer (23), preliminary alignment is achieved. Then, drive the first positioning pin (25) to insert into the first positioning hole (19) by the first electric telescopic rod (10) to form the final locking. After both sets of cleaning rollers (27) are installed, a form of one main roller and one spare roller is formed. The main roller is in the working position below the second main shaft (2), and the spare roller is in the standby position above the second main shaft (2). S2. Use: Drive the second positioning pin (30) to insert into the second positioning hole (28) on the inner wall of the support seat (4) where the main roller is installed by the second electric telescopic rod (29). Fix the support seat (4) and the mounting frame (1) through the second electric telescopic rod (29) and the second positioning pin (30). The servo motor (12) drives the first main shaft (8) to rotate. The first main shaft (8) drives the driven shaft (6) where the main roller is installed to rotate through the driving gear (9) and the driven gear (7), and then drives the main roller to rotate, so as to form an action of removing the precipitates and adhering particles on the formed diaphragm. During this process, the magnetic powder clutch (14) is in a power-off state, and there is no power transmission between the first synchronous pulley (15) and the first main shaft (8). Only the driven shaft (6) is driven to rotate through the driving gear (9) and the driven gear (7). When the servo motor (12) drives the first main shaft (8) to rotate, the driving gear (9) remains engaged with the driven gear (7) corresponding to the current main roller, and drives the driven shaft (6) to drive the main roller to rotate. S3. Replacement: The second electric telescopic rod (29) corresponding to the main roller retracts, driving the second positioning pin (30) to withdraw from the second positioning hole (28); the magnetic powder clutch (14) is energized through the slip ring (13) to rigidly connect the first synchronous pulley (15) and the first main shaft (8); the servo motor (12) drives the first main shaft (8) to rotate, and drives the second main shaft (2) to rotate 180 degrees through the first synchronous pulley (15), the synchronous belt (16) and the second synchronous pulley (17), so that the spare roller is switched to the working position, and the original main roller is switched to the position to be replaced; the second electric telescopic rod (29) pushes the second positioning pin (30) to insert into the second positioning hole (28) of the support seat (4) corresponding to the new main roller to complete the positioning; the magnetic powder clutch (14) is powered off, and the first main shaft (8) resumes the state of driving the new main roller to rotate through the second transmission structure; the first electric telescopic rod (10) corresponding to the original main roller retracts, and the first positioning pin (25) withdraws from the first positioning hole (19) to release the locking between the bearing seat (5) and the support seat (4); after the locking is released, vertically lift out the bearing seat (5) and the driven shaft (6) of the original main roller, install a new cleaning roller (27) as the spare roller, and repeat step S1 to complete the installation.

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