Auxiliary device for hot compression molding of polyimide

Abstract

The invention provides a polyimide hot compression molding auxiliary device which comprises a mold and an auxiliary device, the mold comprises a concentric-square-shaped mold, an upper mold and a lower mold, and the auxiliary device comprises a rack, a fixing mechanism, a grabbing mechanism, a material moving mechanism, a cleaning and coating mechanism and a feeding mechanism. Opposite faces of the upper mold and the lower mold can be cleaned through cooperation of the adjusting mechanism and the cleaning mechanism in the horizontal state, the side wall of the upper mold, the side wall of the lower mold and the side wall of the cavity can be cleaned through cooperation of the adjusting mechanism and the cleaning mechanism in the vertical state, and mold cleaning is convenient. The opposite faces of the upper mold and the lower mold can be coated through cooperation of the adjusting mechanism and the coating mechanism in the horizontal state, the side wall of the upper mold, the side wall of the lower mold and the side wall of the cavity can be coated through cooperation of the adjusting mechanism and the coating mechanism in the vertical state, and the molds can be cleaned and coated without replacement of different auxiliary devices. And mold cleaning and film coating are convenient, and mold cleaning and film coating efficiency is improved.

Description

Technical Field

[0001] The invention particularly relates to a polyimide hot compression molding auxiliary device. Background Art

[0002] Polyimide has excellent high temperature resistance, as well as excellent weather resistance, electrical insulation, wear resistance, and high temperature radiation resistance. It is widely used in high-tech fields such as aviation, aerospace, electrical appliances, machinery, chemicals, microelectronics, instrumentation, petrochemicals, and measurement. The molding temperature of polyimide is relatively high, and two processes are commonly used for molding: one is autoclave molding; the other is hot compression molding. Among them, polyimide hot compression molding is a process in which dry polyimide powder is added to the mold and molded under high temperature and high pressure. In the hot compression molding process, powder filling, mold cleaning, and mold release agent application are related to molding quality and production efficiency.

[0003] For example, the patents "A release agent spraying mechanism for polyimide hot pressing processing" (CN221772601U), "A release agent coating device" (CN202241557U) and "A release agent spraying device and spraying method" (CN109483704B) all proposed solutions for coating release agents; the patent "A mold cleaning tool" (CN217990175U) proposed a solution for using a cleaning pump to spray cleaning liquid to clean the mold. In the prior art, different auxiliary devices need to be replaced to clean and coat the mold respectively, which is inconvenient for cleaning and coating the mold and reduces the efficiency of cleaning and coating the mold. Therefore, in view of the above technical problems, a polyimide hot molding auxiliary device is proposed. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a polyimide hot compression molding auxiliary device, which is convenient for cleaning and coating the mold and improves the efficiency of cleaning and coating the mold.

[0005] A polyimide hot molding auxiliary device comprises a mold and an auxiliary device, wherein the mold comprises a round mold, an upper mold and a lower mold, the round mold is provided with a through cavity, the upper mold and the lower mold can be inserted into the cavity to form a model cavity, and the auxiliary device comprises:

[0006] frame;

[0007] A fixing mechanism, used for fixing the Hui-shaped mold on the frame;

[0008] A grabbing mechanism is installed on the frame, and can grab the upper die and the lower die respectively, and can make the upper die and the lower die pass out of the round-shaped die, or retract into the round-shaped die to form the mold cavity;

[0009] A material moving mechanism is installed on the frame and is used to remove the material from the lower die when the lower die and the material pass downward out of the round-shaped die;

[0010] A cleaning and coating mechanism, comprising an adjusting mechanism installed on the upper part of the frame and a cleaning mechanism and a coating mechanism installed on the adjusting mechanism, wherein the adjusting mechanism can drive the cleaning mechanism and the coating mechanism to rise and fall in the vertical direction, and to move horizontally and longitudinally, the cleaning mechanism has a horizontal state for cleaning the opposing surfaces of the upper mold and the lower mold, and a vertical state for cleaning the side walls of the upper mold, the side walls of the lower mold and the side walls of the cavity, the coating mechanism has a horizontal state for coating the opposing surfaces of the upper mold and the lower mold, and a vertical state for coating the side walls of the upper mold, the side walls of the lower mold and the side walls of the cavity; and

[0011] A feeding mechanism is arranged on the frame and is used for adding powder into the cavity.

[0012] The beneficial effects of the above-mentioned polyimide hot compression molding auxiliary device are:

[0013] By cooperating the adjusting mechanism with the cleaning mechanism in the horizontal state, the opposing surfaces of the upper mold and the lower mold can be cleaned; by cooperating the adjusting mechanism with the cleaning mechanism in the vertical state, the upper mold side wall, the lower mold side wall and the cavity side wall can be cleaned, which makes it convenient to clean the mold; by cooperating the adjusting mechanism with the coating mechanism in the horizontal state, the opposing surfaces of the upper mold and the lower mold can be coated; by cooperating the adjusting mechanism with the coating mechanism in the vertical state, the upper mold side wall, the lower mold side wall and the cavity side wall can be coated; there is no need to replace different auxiliary devices to clean and coat the mold, which makes it convenient to clean and coat the mold, thereby improving the efficiency of cleaning and coating the mold.

[0014] In one embodiment, a fixed station is provided on the frame, a slideway connected to the outside is provided at one end of the fixed station, a connected feeding station is provided on one side of the slideway, and a connected temporary storage station is provided on the other side of the slideway. The mold can be placed on the slideway and can slide into the fixed station, the feeding station or the temporary storage station. The fixing mechanism is provided on the fixed station to fix the U-shaped mold in the fixed station, and the feeding mechanism is used to add powder into the cavity when the U-shaped mold slides into the feeding station.

[0015] In one embodiment, the fixing mechanism includes a fixed telescopic rod; two groups of the fixed telescopic rods are correspondingly arranged on both sides of the fixed station.

[0016] In one embodiment, the auxiliary device also includes a mold shifting mechanism, and the mold shifting mechanism includes a first mold shifting telescopic rod, a second mold shifting telescopic rod and a third mold shifting telescopic rod, the first mold shifting telescopic rod is arranged at the other end of the fixed station, and the telescopic end is provided with a first electromagnet that can be magnetically connected to the U-shaped mold, the first mold shifting telescopic rod can drive the U-shaped mold to move back and forth in the slide and the fixed station, and can make the U-shaped mold correspond to the feeding station or the temporary storage station, the second mold shifting telescopic rod is arranged on the other side of the slide corresponding to the feeding station, and the telescopic end is provided with the first electromagnet that can be magnetically connected to the U-shaped mold, the second mold shifting telescopic rod can drive the U-shaped mold to move back and forth in the slide and the feeding station, the third mold shifting telescopic rod is arranged on the other side of the slide corresponding to the temporary storage station, and the third mold shifting telescopic rod can drive the U-shaped mold from the slide to the temporary storage station.

[0017] In one embodiment, the feeding mechanism includes a silo and a measuring cup; the silo is arranged on the frame, and a feed port connected to the outside is opened at the top; a cover plate capable of opening and closing the feed port is arranged at the top of the frame, a discharge pipe is arranged at the bottom of the silo, the measuring cup is arranged on the frame and located above the feeding station, the top of the measuring cup can be connected to the bottom of the discharge pipe, and the bottom of the measuring cup can be connected to the cavity, and valves for controlling opening and closing are arranged at the bottom of the discharge pipe and the bottom of the measuring cup.

[0018] In one embodiment, the gripping mechanism includes an upper slide plate and a lower slide plate; the upper slide plate is liftably arranged on the upper part of the frame, and a second electromagnet that can be magnetically connected to the upper mold is arranged at the bottom end; the lower slide plate is liftably arranged on the lower part of the frame, and a second electromagnet that can be magnetically connected to the lower mold is arranged at the top end.

[0019] In one of the embodiments, the material moving mechanism includes a fixed plate, a material moving rod and a conveyor belt; the fixed plate is fixedly arranged at the lower part of the frame, and the material moving rod can be horizontally and longitudinally slidably arranged at the top of the fixed plate, and when the lower mold together with the material passes downward out of the U-shaped mold, one end of the material moving rod is located on one side of the material, and the conveyor belt is arranged at the lower part of the frame, and the conveyor belt is used to receive the material removed from the lower mold and transport the material to the outside of the frame.

[0020] In one embodiment, the adjustment mechanism includes a first mounting plate, a second mounting plate and a third mounting plate; the first mounting plate is liftably arranged on the upper part of the frame, the second mounting plate is horizontally slidable and arranged on the top of the first mounting plate, the third mounting plate is horizontally slidable and arranged on the top of the second mounting plate, and the cleaning mechanism and the coating mechanism are arranged on the third mounting plate.

[0021] In one embodiment, the cleaning mechanism includes a scraping component and a brushing component, the scraping component includes a first mounting seat, a first double-output shaft motor, a first scraper, a second scraper and a first driving telescopic rod, the first mounting seat is hinged on the third mounting plate, the first double-output shaft motor is fixed on the first mounting seat, one end of the first double-output shaft motor output shaft is coaxially connected to the first scraper, and the other end of the first double-output shaft motor output shaft is coaxially connected to the second scraper, the first driving telescopic rod has two ends hinged to the first mounting seat and the third mounting plate respectively, the first driving telescopic rod can drive the first mounting seat to rotate, so that the first scraper has a horizontal state in contact with the opposite surfaces of the upper mold and the lower mold, and has a vertical state in which the first scraper can contact the side wall of the lower mold and the side wall of the cavity, and the second scraper can contact the side wall of the upper mold;

[0022] The brush cleaning assembly includes a second mounting seat, a second double-shaft motor, a first brush rod, a second brush rod and a second driving telescopic rod. The second mounting seat is hinged on the third mounting plate. The second double-shaft motor is fixed on the second mounting seat. An output shaft at one end of the second double-shaft motor is coaxially connected to the first brush rod, and an output shaft at the other end is coaxially connected to the second brush rod. Both ends of the second driving telescopic rod are respectively hinged to the second mounting seat and the third mounting plate. The second driving telescopic rod can drive the second mounting seat to rotate so that the first brush rod has a horizontal state in contact with the opposing surfaces of the upper mold and the lower mold, and has a vertical state in which the first brush rod can contact the side wall of the lower mold and the side wall of the cavity, and the second brush rod can contact the side wall of the upper mold.

[0023] In one embodiment, the coating mechanism includes a third mounting seat, a third double-output shaft motor, a first brush, a second brush and a third driving telescopic rod; the third mounting seat is hinged on the third mounting plate, the third double-output shaft motor is fixed on the third mounting seat, the output shaft at one end of the third double-output shaft motor is coaxially connected to the first brush, and the output shaft at the other end is coaxially connected to the second brush, the surfaces of the first brush and the second brush are connected to the release agent through an internal pipe, and the two ends of the third driving telescopic rod are respectively hinged to the third mounting seat and the third mounting plate, and the third driving telescopic rod can drive the third mounting seat to rotate so that the first brush has a horizontal state in contact with the opposite surfaces of the upper mold and the lower mold, and has a vertical state in which the first brush can contact the side wall of the lower mold and the side wall of the cavity, and the second brush can contact the side wall of the upper mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0025] Figure 1 A three-dimensional diagram of a polyimide thermal compression molding auxiliary device provided by one embodiment of the present invention;

[0026] Figure 2 for Figure 1 A cutaway perspective view of a polyimide thermal compression molding auxiliary device is shown;

[0027] Figure 3 for Figure 1 A three-dimensional view of a frame cut away in a polyimide heat compression molding auxiliary device shown;

[0028] Figure 4 for Figure 1 An exploded view of a gripping mechanism in a polyimide hot compression molding auxiliary device is shown;

[0029] Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of a cleaning coating mechanism in a polyimide hot compression molding auxiliary device is shown;

[0030] Figure 6 for Figure 1 An exploded view of a material transfer mechanism in a polyimide hot compression molding auxiliary device is shown;

[0031] Figure 7 for Figure 1 An exploded view of an adjustment mechanism in a polyimide thermal compression molding auxiliary device is shown;

[0032] Figure 8 for Figure 1 An exploded view of a scraping component in a polyimide thermal compression molding auxiliary device is shown;

[0033] Fig. 9 for Figure 1 An exploded view of a brush cleaning component in a polyimide hot compression molding auxiliary device is shown;

[0034] Fig.10 for Figure 1 An exploded view of a coating mechanism in a polyimide hot compression molding auxiliary device is shown.

[0035] Reference numerals:

[0036] 1. Frame; 11. Slide; 12. Fixed station; 13. Feeding station; 14. Temporary storage station; 15. First guide rod; 16. First screw rod; 17. Second guide rod; 18. Second screw rod; 19. Third guide rod; 111. Fourth screw rod;

[0037] 2. Fix the telescopic rod;

[0038] 3. Grasping mechanism; 31. Upper slide plate; 32. Lower slide plate; 33. Second electromagnet;

[0039] 4. Material transfer mechanism; 41. Fixed plate; 42. Material transfer rod; 43. Conveyor belt; 44. First guide groove; 45. First guide block; 46. Third screw;

[0040] 5. Adjustment mechanism; 51. First mounting plate; 511. Second guide groove; 512. Fifth screw rod; 52. Second mounting plate; 521. Second guide block; 522. Third guide groove; 523. Sixth screw rod; 53. Third mounting plate; 531. Third guide block;

[0041] 6. Cleaning mechanism; 61. First mounting seat; 62. First double-output shaft motor; 621. First scraper; 622. Second scraper; 63. First drive telescopic rod; 64. Second mounting seat; 65. Second double-output shaft motor; 651. First brush rod; 652. Second brush rod; 66. Second drive telescopic rod;

[0042] 7. coating mechanism; 71. third mounting seat; 72. third double-output shaft motor; 73. first brush; 74. second brush; 75. third driving telescopic rod;

[0043] 8. Feeding mechanism; 81. Material bin; 82. Measuring cup; 83. Cover plate; 84. Discharge pipe;

[0044] 9. First mold-shifting telescopic rod; 91. Second mold-shifting telescopic rod; 92. First electromagnet; 93. Third mold-shifting telescopic rod. DETAILED DESCRIPTION

[0045] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0046] See also Figures 1 to 5 In one embodiment, a polyimide hot molding auxiliary device includes a mold and an auxiliary device. The mold includes a U-shaped mold, an upper mold and a lower mold. The U-shaped mold is provided with a through cavity. The upper mold and the lower mold can be inserted into the cavity to form a model cavity. The auxiliary device includes a frame 1, a fixing mechanism, a gripping mechanism 3, a material moving mechanism 4, a cleaning and coating mechanism and a feeding mechanism 8.

[0047] See also Figures 1 to 3 In one embodiment, the fixing mechanism is used to fix the Hui-shaped mold on the frame 1. Specifically, a fixing station 12 is provided on the frame 1, and a slideway 11 connected to the outside is provided at one end of the fixing station 12, a connecting feeding station 13 is provided on one side of the slideway 11, and a connecting temporary storage station 14 is provided on the other side. The mold can be placed on the slideway 11, and can slide into the fixing station 12, the feeding station 13 or the temporary storage station 14. The fixing mechanism is provided on the fixing station 12 to fix the Hui-shaped mold in the fixing station 12, and the feeding mechanism 8 is used to add powder into the cavity when the Hui-shaped mold slides into the feeding station 13.

[0048] In the above embodiment, by placing the molded mold on the slide 11, and then sliding it into the fixing station 12, the U-shaped mold can be fixed by the fixing mechanism, which is convenient for fixing the mold on the device. After the mold is cleaned and coated, the U-shaped mold and the lower mold are slid into the feeding station 13 through the slide 11. At this time, powder can be added to the cavity through the feeding mechanism 8, and the feeding is convenient. By setting the temporary storage station 14, the mold can be temporarily stored by sliding the mold after mold closing through the slide 11 to the temporary storage station 14, so that the molded mold can be placed on the slide 11 again for cleaning and coating operations.

[0049] On the basis of the above embodiment, the fixing mechanism further includes a fixed telescopic rod 2; two sets of fixed telescopic rods 2 are correspondingly arranged on both sides of the fixed station 12. When the mold is located in the fixed station 12, the Hui-shaped mold can be clamped by driving the two sets of fixed telescopic rods 2 to extend, which is convenient for fixing the mold.

[0050] On the basis of the above embodiments, further, the feeding mechanism 8 includes a silo 81 and a measuring cup 82; the silo 81 is arranged on the frame 1, and a feed port connected to the outside is opened at the top, a cover plate 83 capable of opening and closing the feed port is arranged at the top of the frame 1, a discharge pipe 84 is arranged at the bottom of the silo 81, the measuring cup 82 is arranged on the frame 1, and is located above the feeding station 13, the top of the measuring cup 82 can be connected to the bottom of the discharge pipe 84, and the bottom can be connected to the cavity, and valves for controlling the opening and closing are arranged at the bottom of the discharge pipe 84 and the bottom of the measuring cup 82. When adding materials, the Hui-shaped mold and the lower mold are slid into the feeding station 13 through the slide 11. At this time, the bottom end of the measuring cup 82 is located above the cavity. By opening the valve at the bottom end of the discharge pipe 84, the powder in the silo 81 falls into the measuring cup 82 through the discharge pipe 84. When the powder in the measuring cup 82 reaches the specified amount, the valve on the discharge pipe 84 is closed, and then the valve at the bottom end of the measuring cup 82 is opened. At this time, the powder in the measuring cup 82 can fall into the cavity. Adding powder to the cavity is convenient and accurate, and the setting of the feed port makes it easy to add powder to the silo 81. Closing the feed port through the cover plate 83 can prevent external residues from entering the silo 81.

[0051] See also Figure 1 and Figure 2 In one embodiment, the auxiliary device also includes a mold shifting mechanism, which includes a first mold shifting telescopic rod 9, a second mold shifting telescopic rod 91 and a third mold shifting telescopic rod 93. The first mold shifting telescopic rod 9 is arranged at the other end of the fixed station 12, and the telescopic end is provided with a first electromagnet 92 that can be magnetically connected to the back-shaped mold. The first mold shifting telescopic rod 9 can drive the back-shaped mold to move back and forth in the slide 11 and the fixed station 12, and can make the back-shaped mold correspond to the feeding station 13 or the temporary storage station 14. The second mold shifting telescopic rod 91 is arranged on the other side of the slide 11 corresponding to the feeding station 13, and the telescopic end is provided with a first electromagnet 92 that can be magnetically connected to the back-shaped mold. The second mold shifting telescopic rod 91 can drive the back-shaped mold to move back and forth in the slide 11 and the feeding station 13. The third mold shifting telescopic rod 93 is arranged on the other side of the slide 11 corresponding to the temporary storage station 14. The third mold shifting telescopic rod 93 can drive the back-shaped mold from the slide 11 to the temporary storage station 14.

[0052] In the above embodiment, by placing the molded mold on the slide 11, and then controlling the telescopic end of the first mold-shifting telescopic rod 9 to extend, it can be magnetically connected to the back-shaped mold through the first electromagnet 92. At this time, the telescopic end of the first mold-shifting telescopic rod 9 is controlled to contract to drive the mold to move along the slide 11 to the fixed station 12, so that the mold can be moved from the slide 11 to the fixed station 12. After the mold is cleaned and coated, the telescopic end of the first mold-shifting telescopic rod 9 is controlled to extend so that the back-shaped mold and the lower mold in the fixed station 12 are moved to the slide 11, and when the back-shaped mold and the lower mold move to correspond to the feeding station 13, the magnetic connection with the back-shaped mold is cancelled, and then the telescopic end of the second mold-shifting telescopic rod 91 is controlled to extend to be magnetically connected to the back-shaped mold through the first electromagnet 92, and the back-shaped mold and the lower mold are pushed into the feeding station 13, so that the back-shaped mold and the lower mold can be moved from the fixed station 13 to the fixed station 13. The fixed station 12 moves to the feeding station 13. When the feeding is completed, the second mold-shifting telescopic rod 91 is controlled to retract to move the U-shaped mold and the lower mold from the feeding station 13 to the slide 11. At this time, the magnetic connection between the second mold-shifting telescopic rod 91 and the U-shaped mold is canceled, and the telescopic end of the first mold-shifting telescopic rod 9 is magnetically connected to the U-shaped mold. At this time, the telescopic end of the first mold-shifting telescopic rod 9 is controlled to retract to move the U-shaped mold and the lower mold to the fixed station 12, so as to facilitate the mold closing operation. After the mold closing is completed, the telescopic end of the first mold-shifting telescopic rod 9 is controlled to extend to move the mold to the slide 11, and when the mold corresponds to the temporary storage station 14, the magnetic connection with the U-shaped mold is canceled, and then the telescopic end of the third mold-shifting telescopic rod 93 is controlled to extend to push the mold into the temporary storage station 14, so that the mold is moved from the fixed station 12 to the temporary storage station 14 for convenience.

[0053] See also Figures 1 to 4In one embodiment, the grabbing mechanism 3 is installed on the frame 1, and can grab the upper mold and the lower mold respectively, and can make the upper mold and the lower mold pass out of the round mold, or retract into the round mold to form a mold cavity. Specifically, the grabbing mechanism 3 includes an upper slide plate 31 and a lower slide plate 32; the upper slide plate 31 is movably arranged on the upper part of the frame 1, and a second electromagnet 33 that can be magnetically connected to the upper mold is arranged at the bottom end; the lower slide plate 32 is movably arranged on the lower part of the frame 1, and a second electromagnet 33 that can be magnetically connected to the lower mold is arranged at the top end. In the above embodiment, the upper mold can be grabbed by driving the upper slide plate 31 to descend and then magnetically connected to the upper mold through the second electromagnet 33, and the lower mold can be grabbed by driving the lower slide plate 32 to rise and then magnetically connected to the lower mold through the second electromagnet 33. After the upper slide plate 31 and the lower slide plate 32 grab the upper mold and the lower mold respectively, the upper slide plate 31 and the lower slide plate 32 are driven to rise and fall respectively to drive the upper mold and the lower mold to pass through the U-shaped mold, or retract into the U-shaped mold to form a model cavity, and the mold opening and closing operations are convenient.

[0054] Specifically in the above embodiment, multiple groups of first guide rods 15 are vertically arranged on the upper part of the frame 1, and the upper slide plate 31 can be slidably arranged on the multiple groups of first guide rods 15 in a vertical direction. The upper part of the frame 1 is rotatably provided with a first screw rod 16 parallel to the first guide rod 15, and the first screw rod 16 is threadedly connected to the upper slide plate 31. Multiple groups of second guide rods 17 are vertically arranged on the lower part of the frame 1, and the lower slide plate 32 can be slidably arranged on the multiple groups of second guide rods 17 in a vertical direction. The lower part of the frame 1 is rotatably provided with a second screw rod 18 parallel to the second guide rod 17, and the second screw rod 18 is threadedly connected to the lower slide plate 32. The first screw rod 16 and the second screw rod 18 are respectively driven to rotate by a motor. The upper slide plate 31 can be driven to rise and fall by driving the first screw rod 16 to rotate and to match with the thread of the upper slide plate 31 by the motor, and the lower slide plate 32 can be driven to rise and fall by driving the second screw rod 18 to rotate and to match with the thread of the lower slide plate 32 by the motor, and the upper slide plate 31 and the lower slide plate 32 can be driven to rise and fall conveniently.

[0055] See also Figure 1 , Figure 2 and Figure 6 In one embodiment, the material moving mechanism 4 is installed on the frame 1, and is used to remove the material from the lower mold when the lower mold and the material pass downward out of the U-shaped mold. Specifically, the material moving mechanism 4 includes a fixed plate 41, a material moving rod 42 and a conveyor belt 43; the fixed plate 41 is fixedly arranged at the lower part of the frame 1, and the material moving rod 42 is arranged at the top of the fixed plate 41 to be horizontally and longitudinally slidable. When the lower mold and the material pass downward out of the U-shaped mold, one end of the material moving rod 42 is located on one side of the material. The conveyor belt 43 is arranged at the lower part of the frame 1, and the conveyor belt 43 is used to receive the material removed from the lower mold and transport the material to the outside of the frame 1.

[0056] In the above embodiment, when the lower mold together with the material passes downward out of the U-shaped mold and the material is located at one end of the material moving rod 42, the material moving rod 42 is driven to slide horizontally and longitudinally to push the material to move, so that the material is removed from the lower mold and falls on the conveyor belt 43. After the material falls on the conveyor belt 43, the conveyor belt 43 transports the material to the outside of the frame 1, which makes it convenient to remove the material from the lower mold and avoids the accumulation of material in the frame 1.

[0057] Specifically in the above embodiment, two groups of first guide grooves 44 are relatively opened on the fixed plate 41, and two groups of first guide blocks 45 are relatively arranged on the material moving rod 42. The two groups of first guide blocks 45 can be arranged in the two groups of first guide grooves 44 for horizontal and longitudinal sliding. A third screw rod 46 is rotatably arranged on the fixed plate 41, and the third screw rod 46 is arranged along the horizontal and longitudinal direction and is threadedly connected with the material moving rod 42. The third screw rod 46 is driven to rotate by a motor. The stability of the horizontal and longitudinal sliding of the material moving rod 42 can be improved by cooperating with the two groups of first guide grooves 44. The material moving rod 42 can be driven to slide horizontally and longitudinally by the motor driving the third screw 46 to rotate and cooperate with the thread of the material moving rod 42, and the horizontal and longitudinal sliding of the material moving rod 42 is convenient.

[0058] See also Figure 1 , Figure 2 and Figure 5 In one embodiment, the cleaning and coating mechanism includes an adjusting mechanism 5 installed on the upper part of the frame 1 and a cleaning mechanism 6 and a coating mechanism 7 installed on the adjusting mechanism 5. The adjusting mechanism 5 can drive the cleaning mechanism 6 and the coating mechanism 7 to rise and fall in the vertical direction, and to move horizontally and longitudinally. The cleaning mechanism 6 has a horizontal state for cleaning the opposing surfaces of the upper mold and the lower mold, and a vertical state for cleaning the side walls of the upper mold, the side walls of the lower mold and the side walls of the cavity. The coating mechanism 7 has a horizontal state for coating the opposing surfaces of the upper mold and the lower mold, and a vertical state for coating the side walls of the upper mold, the side walls of the lower mold and the side walls of the cavity.

[0059] Please also read Figures 7 to 10 Specifically, the adjustment mechanism 5 includes a first mounting plate 51, a second mounting plate 52 and a third mounting plate 53; the first mounting plate 51 is arranged on the upper part of the frame 1 in a liftable manner, the second mounting plate 52 is arranged on the top of the first mounting plate 51 in a horizontally slidable manner, the third mounting plate 53 is arranged on the top of the second mounting plate 52 in a horizontally slidable manner, and the cleaning mechanism 6 and the coating mechanism 7 are arranged on the third mounting plate 53.

[0060] The cleaning mechanism 6 includes a scraping component and a brushing component. The scraping component includes a first mounting seat 61, a first double-output shaft motor 62, a first scraper 621, a second scraper 622 and a first driving telescopic rod 63. The first mounting seat 61 is hinged on the third mounting plate 53. The first double-output shaft motor 62 is fixed on the first mounting seat 61. The output shaft at one end of the first double-output shaft motor 62 is coaxially connected to the first scraper 621, and the output shaft at the other end is coaxially connected to the second scraper 622. Both ends of the first driving telescopic rod 63 are respectively hinged to the first mounting seat 61 and the third mounting plate 53. The first driving telescopic rod 63 can drive the first mounting seat 61 to rotate so that the first scraper 621 has a horizontal state in contact with the opposite surfaces of the upper mold and the lower mold, and the first scraper 621 can contact the side wall of the lower mold and the side wall of the cavity, and the second scraper 622 can contact the side wall of the upper mold. The brush cleaning assembly includes a second mounting seat 64, a second double-output shaft motor 65, a first brush rod 651, a second brush rod 652 and a second driving telescopic rod 66. The second mounting seat 64 is hinged on the third mounting plate 53. The second double-output shaft motor 65 is fixed on the second mounting seat 64. The output shaft at one end of the second double-output shaft motor 65 is coaxially connected to the first brush rod 651, and the output shaft at the other end is coaxially connected to the second brush rod 652. The two ends of the second driving telescopic rod 66 are respectively hinged to the second mounting seat 64 and the third mounting plate 53. The second driving telescopic rod 66 can drive the second mounting seat 64 to rotate so that the first brush rod 651 has a horizontal state in contact with the opposite surfaces of the upper mold and the lower mold, and has a vertical state in which the first brush rod 651 can contact the side wall of the lower mold and the side wall of the cavity, and the second brush rod 652 can contact the side wall of the upper mold.

[0061] The coating mechanism 7 includes a third mounting seat 71, a third double-output shaft motor 72, a first brush 73, a second brush 74 and a third driving telescopic rod 75; the third mounting seat 71 is hinged on the third mounting plate 53, the third double-output shaft motor 72 is fixed on the third mounting seat 71, one end of the third double-output shaft motor 72 has an output shaft coaxially connected to the first brush 73, and the other end of the output shaft is coaxially connected to the second brush 74, the surfaces of the first brush 73 and the second brush 74 are connected to the release agent through an internal pipeline, and the two ends of the third driving telescopic rod 75 are hinged to the third mounting seat 71 and the third mounting plate 53 respectively, and the third driving telescopic rod 75 can drive the third mounting seat 71 to rotate, so that the first brush 73 has a horizontal state in contact with the opposite surfaces of the upper mold and the lower mold, and has a vertical state in which the first brush 73 can contact the side wall of the lower mold and the side wall of the cavity, and the second brush 74 can contact the side wall of the upper mold.

[0062] In the above embodiment, during scraping, the third mounting plate 53 is controlled to drive the first scraper 621 in a horizontal state to be located between the upper mold and the lower mold, and then the upper slide plate 31 is controlled to drive the upper mold to descend and contact with the first scraper 621, and the lower slide plate 32 drives the lower mold to rise through the Hui-shaped mold and contact with the first scraper 621. At this time, the first double-output shaft motor 62 is started to drive the first scraper 621 to rotate, and the second mounting plate 52 is controlled to slide horizontally to scrape the opposite surfaces of the upper mold and the lower mold. Then, the upper slide plate 31 is controlled to drive the upper mold to rise and separate from the first scraper 621, and the lower slide plate 32 drives the lower mold to descend and separate from the first scraper 621. The first driving telescopic rod 63 is controlled to extend to drive the first mounting seat 61 to rotate , so that the first scraper 621 and the second scraper 622 are in a vertical state, and then the third mounting plate 53 and the second mounting plate 52 are controlled to move horizontally longitudinally and horizontally laterally respectively so that the first scraper 621 and the second scraper 622 are in contact with the side wall of the lower mold and the side wall of the upper mold respectively and move circumferentially along the side wall to scrape the side walls of the upper mold and the lower mold, and then, the lower slide plate 32 is controlled to drive the lower mold to descend and pass through the U-shaped mold, and then the first mounting plate 51 is controlled to descend so that the first scraper 621 is inserted into the U-shaped mold cavity, and then the third mounting plate 53 and the second mounting plate 52 are controlled to move horizontally longitudinally and horizontally laterally respectively so that the first scraper 621 is in contact with the side wall of the U-shaped mold cavity and moves circumferentially along the side wall to scrape the U-shaped mold cavity.

[0063] When brushing, the third mounting plate 53 is controlled to drive the first brush rod 651 in the horizontal state to be located between the upper mold and the lower mold, and then the upper slide plate 31 is controlled to drive the upper mold to descend and contact with the first brush rod 651, and the lower slide plate 32 drives the lower mold to rise through the Hui-shaped mold and contact with the first brush rod 651. At this time, the second double-output shaft motor 65 is started to drive the first brush rod 651 to rotate, and the second mounting plate 52 is controlled to slide horizontally to brush the opposite surfaces of the upper mold and the lower mold. Then, the upper slide plate 31 is controlled to drive the upper mold to rise and separate from the first brush rod 651, and the lower slide plate 32 drives the lower mold to descend and separate from the first brush rod 651. The second driving telescopic rod 66 is controlled to extend and drive the second mounting seat 64 to rotate, so that the first brush rod 651 and the second brush rod 652 are in a vertical state, and then the second double-output shaft motor 65 is controlled to drive the first brush rod 651 to rotate. The third mounting plate 53 and the second mounting plate 52 are respectively controlled to move horizontally longitudinally and horizontally laterally so that the first brush rod 651 and the second brush rod 652 are respectively in contact with the side wall of the lower mold and the side wall of the upper mold and move circumferentially along the side wall to brush the side walls of the upper mold and the lower mold; then, the lower slide plate 32 is controlled to drive the lower mold to descend and pass through the U-shaped mold; the first mounting plate 51 is controlled to descend so that the first brush rod 651 is inserted into the U-shaped mold cavity; the third mounting plate 53 and the second mounting plate 52 are respectively controlled to move horizontally longitudinally and horizontally laterally so that the first brush rod 651 is in contact with the side wall of the U-shaped mold cavity and moves circumferentially along the side wall to brush the U-shaped mold cavity; it is convenient to clean the upper mold, the lower mold and the U-shaped mold, and the two cleaning methods are performed in sequence to improve the cleaning effect of the upper mold, the lower mold and the U-shaped mold.

[0064] When coating, the third mounting plate 53 is controlled to drive the first brush 73 in the horizontal state to be located between the upper mold and the lower mold, and then the upper slide plate 31 is controlled to drive the upper mold to descend and contact with the first brush 73, and the lower slide plate 32 drives the lower mold to rise through the Hui-shaped mold and contact with the first brush 73. At this time, the third double-output shaft motor 72 is started to drive the first brush 73 to rotate, and the second mounting plate 52 is controlled to slide horizontally to coat the opposite surfaces of the upper mold and the lower mold. Then, the upper slide plate 31 is controlled to drive the upper mold to rise and separate from the first brush 73, and the lower slide plate 32 drives the lower mold to descend and separate from the first brush 73, and the third driving telescopic rod 75 is controlled to extend to drive the third mounting seat 71 to rotate, so that the first brush 73 and the third The two brushes 74 are in a vertical state, and then the third mounting plate 53 and the second mounting plate 52 are controlled to move horizontally longitudinally and horizontally laterally respectively so that the first brush 73 and the second brush 74 are in contact with the side wall of the lower mold and the side wall of the upper mold respectively and move circumferentially along the side wall to coat the side walls of the upper mold and the lower mold, and then, the lower slide plate 32 is controlled to drive the lower mold to descend and pass through the U-shaped mold, and then the first mounting plate 51 is controlled to descend so that the first brush 73 is inserted into the U-shaped mold cavity, and then the third mounting plate 53 and the second mounting plate 52 are controlled to move horizontally longitudinally and horizontally respectively so that the first brush 73 is in contact with the side wall of the U-shaped mold cavity and moves circumferentially along the side wall to coat the U-shaped mold cavity, which is convenient for coating the upper mold, the lower mold and the U-shaped mold.

[0065] Specifically in the above embodiment, multiple groups of third guide rods 19 are vertically arranged on the upper part of the frame 1, and the first mounting plate 51 is slidably arranged on the multiple groups of third guide rods 19 in the vertical direction. A fourth screw 111 parallel to the third guide rod 19 is rotatably arranged on the upper part of the frame 1, and the fourth screw 111 is threadedly connected to the first mounting plate 51. Two groups of second guide grooves 511 are relatively opened on the first mounting plate 51, and two groups of second guide blocks 521 are relatively arranged on the second mounting plate 52. The two groups of second guide blocks 521 can be horizontally slidably arranged in the two groups of second guide grooves 511, and the first mounting plate 51 is rotatably provided with a fourth screw 111 parallel to the third guide rod 19. The fourth screw 111 is threadedly connected to the first mounting plate 51. Two groups of second guide grooves 511 are relatively opened on the first mounting plate 51, and two groups of second guide blocks 521 are relatively arranged on the second mounting plate 52. The two groups of second guide blocks 521 can be horizontally slidably arranged in the two groups of second guide grooves 511. The fifth screw rod 512 is parallel to the second guide groove 511, and the fifth screw rod 512 is threadedly connected to the second mounting plate 52. Two sets of third guide grooves 522 are relatively opened on the second mounting plate 52, and two sets of third guide blocks 531 are relatively set on the third mounting plate 53. The two sets of third guide blocks 531 can be horizontally and longitudinally slidably arranged in the two sets of third guide grooves 522. The second mounting plate 52 is rotatably provided with a sixth screw rod 523 parallel to the third guide groove 522, and the sixth screw rod 523 is threadedly connected to the third mounting plate 53. The fourth screw rod 111, the fifth screw rod 512 and the sixth screw rod 523 are respectively driven to rotate by the motor. The first mounting plate 51 can be driven to rise and fall by driving the fourth screw rod 111 to rotate and threadably match the first mounting plate 51, the second mounting plate 52 can be driven to move horizontally and laterally by driving the fifth screw rod 512 to rotate and threadably match the second mounting plate 52, and the third mounting plate 53 can be driven to move horizontally and longitudinally by driving the sixth screw rod 523 to rotate and threadably match the third mounting plate 53.

[0066] The specific implementation of the above-mentioned polyimide hot compression molding auxiliary device is as follows:

[0067] By placing the molded mold on the slide 11, and then controlling the telescopic end of the first mold-moving telescopic rod 9 to extend through the first electromagnet 92 to be magnetically connected to the U-shaped mold, and then contracting to drive the mold to move along the slide 11 to the fixed workstation 12, and then drive the two sets of fixed telescopic rods 2 to extend to clamp and fix the U-shaped mold, and then, by driving the upper slide plate 31 to descend, it is magnetically connected to the upper mold through the second electromagnet 33, and by driving the lower slide plate 32 to rise, it is magnetically connected to the lower mold through the second electromagnet 33, and then driving the upper slide plate 31 and the lower slide plate 32 to rise and fall respectively to drive the upper mold and the lower mold to pass through the U-shaped mold. At this time, the material passes through the U-shaped mold together with the lower mold due to gravity, and when the material is at one end of the material moving rod 42, driving the material moving rod 42 to slide horizontally and longitudinally can push the material to move, so that the material is removed from the lower mold and falls on the conveyor belt 43. After the material falls on the conveyor belt 43, the conveyor belt 43 transports the material to the outside of the frame 1.

[0068] Then, the third mounting plate 53 is controlled to drive the first scraper 621 in the horizontal state to be located between the upper mold and the lower mold, and then the upper slide plate 31 is controlled to drive the upper mold to descend and contact with the first scraper 621, and the lower slide plate 32 drives the lower mold to rise through the Hui-shaped mold and contact with the first scraper 621. At this time, the first double-output shaft motor 62 is started to drive the first scraper 621 to rotate, and the second mounting plate 52 is controlled to slide horizontally to scrape the opposite surfaces of the upper mold and the lower mold. Then, the upper slide plate 31 is controlled to drive the upper mold to rise and separate from the first scraper 621, and the lower slide plate 32 drives the lower mold to descend and separate from the first scraper 621. The first driving telescopic rod 63 is controlled to extend to drive the first mounting seat 61 to rotate, so that the second mounting plate 52 A scraper 621 and a second scraper 622 are in a vertical state, and then the third mounting plate 53 and the second mounting plate 52 are controlled to move horizontally longitudinally and horizontally laterally respectively so that the first scraper 621 and the second scraper 622 are in contact with the side wall of the lower mold and the side wall of the upper mold respectively and move circumferentially along the side wall to scrape the side wall of the upper mold and the lower mold. Then, the lower slide plate 32 is controlled to drive the lower mold to descend and pass through the U-shaped mold, and then the first mounting plate 51 is controlled to descend so that the first scraper 621 is inserted into the U-shaped mold cavity, and then the third mounting plate 53 and the second mounting plate 52 are controlled to move horizontally longitudinally and horizontally respectively so that the first scraper 621 is in contact with the side wall of the U-shaped mold cavity and moves circumferentially along the side wall to scrape the U-shaped mold cavity.

[0069] Then, the third mounting plate 53 is controlled to drive the first brush rod 651 in the horizontal state to be located between the upper mold and the lower mold, and then the upper slide plate 31 is controlled to drive the upper mold to descend and contact with the first brush rod 651, and the lower slide plate 32 drives the lower mold to rise through the Hui-shaped mold and contact with the first brush rod 651. At this time, the second double-output shaft motor 65 is started to drive the first brush rod 651 to rotate, and the second mounting plate 52 is controlled to slide horizontally to brush the opposite surfaces of the upper mold and the lower mold. Then, the upper slide plate 31 is controlled to drive the upper mold to rise and separate from the first brush rod 651, and the lower slide plate 32 drives the lower mold to descend and separate from the first brush rod 651, and then the second driving telescopic rod 66 is controlled to extend to drive the second mounting seat 64 to rotate, so that the third mounting plate 53 can be brushed and cleaned. A brush rod 651 and a second brush rod 652 are in a vertical state, and then the third mounting plate 53 and the second mounting plate 52 are controlled to move horizontally longitudinally and horizontally laterally respectively so that the first brush rod 651 and the second brush rod 652 are respectively in contact with the side wall of the lower mold and the side wall of the upper mold and move circumferentially along the side wall to brush the side walls of the upper mold and the lower mold. Then, the lower slide plate 32 is controlled to drive the lower mold to descend and pass through the U-shaped mold, and then the first mounting plate 51 is controlled to descend so that the first brush rod 651 is inserted into the U-shaped mold cavity, and then the third mounting plate 53 and the second mounting plate 52 are controlled to move horizontally longitudinally and horizontally respectively so that the first brush rod 651 is in contact with the side wall of the U-shaped mold cavity and moves circumferentially along the side wall to brush the U-shaped mold cavity.

[0070] Then, the third mounting plate 53 is controlled to drive the first brush 73 in the horizontal state to be located between the upper mold and the lower mold, and the upper slide plate 31 is controlled to drive the upper mold to descend and contact the first brush 73, and the lower slide plate 32 drives the lower mold to rise through the Hui-shaped mold and contact the first brush 73. At this time, the third double-output shaft motor 72 is started to drive the first brush 73 to rotate, and the second mounting plate 52 is controlled to slide horizontally to coat the opposite surfaces of the upper mold and the lower mold. Then, the upper slide plate 31 is controlled to drive the upper mold to rise and separate from the first brush 73, and the lower slide plate 32 drives the lower mold to descend and separate from the first brush 73, and the third driving telescopic rod 75 is controlled to extend to drive the third mounting seat 71 to rotate, so that the third A brush 73 and a second brush 74 are in a vertical state, and then the third mounting plate 53 and the second mounting plate 52 are controlled to move horizontally longitudinally and horizontally laterally respectively so that the first brush 73 and the second brush 74 are in contact with the side wall of the lower mold and the side wall of the upper mold respectively and move circumferentially along the side wall to coat the side walls of the upper mold and the lower mold. Then, the lower slide plate 32 is controlled to drive the lower mold to descend and pass through the U-shaped mold, and then the first mounting plate 51 is controlled to descend so that the first brush 73 is inserted into the U-shaped mold cavity, and then the third mounting plate 53 and the second mounting plate 52 are controlled to move horizontally longitudinally and horizontally respectively so that the first brush 73 is in contact with the side wall of the U-shaped mold cavity and moves circumferentially along the side wall to coat the U-shaped mold cavity.

[0071] Finally, the lower slide plate 32 is driven to rise and drive the lower mold to retract into the Hui-shaped mold, and the magnetic connection with the lower mold is cancelled, and then the two sets of fixed telescopic rods 2 are driven to contract to cancel the fixation of the Hui-shaped mold, and then the telescopic end of the first mold-moving telescopic rod 9 is controlled to extend to make the Hui-shaped mold and the lower mold in the fixed station 12 move to the slideway 11, and when the Hui-shaped mold and the lower mold move to correspond to the feeding station 13, the magnetic connection with the Hui-shaped mold is cancelled, and then the telescopic end of the second mold-moving telescopic rod 91 is controlled to extend to be magnetically connected with the Hui-shaped mold through the first electromagnet 92, and the Hui-shaped mold and the lower mold are pushed into the feeding station 13, and the cavity is located below the measuring cup 82, and then the valve at the bottom of the discharge pipe 84 is opened, and the powder in the silo 81 falls into the measuring cup 82 through the discharge pipe 84. When the powder in the measuring cup 82 reaches the specified amount, the valve on the discharge pipe 84 is closed, and then the valve at the bottom of the measuring cup 82 is opened. At this time, the powder in the measuring cup 82 can fall into the cavity, thereby The material is added. When the material addition is completed, the second mold-shifting telescopic rod 91 is controlled to contract so that the back-shaped mold and the lower mold can be moved from the feeding station 13 to the slideway 11. At this time, the magnetic connection between the second mold-shifting telescopic rod 91 and the back-shaped mold is cancelled, and the telescopic end of the first mold-shifting telescopic rod 9 is magnetically connected to the back-shaped mold. At this time, the telescopic end of the first mold-shifting telescopic rod 9 is controlled to contract so that the back-shaped mold and the lower mold can be moved to the fixed station 12. At this time, the two groups of fixed telescopic rods 2 are driven to extend to clamp and fix the back-shaped mold, and then the upper slide plate 31 is controlled to drive the upper mold to descend and retract into the back-shaped mold, thereby completing the mold closing. After the mold closing is completed, the two groups of fixed telescopic rods 2 are driven to contract to cancel the fixation of the back-shaped mold, and then the telescopic end of the first mold-shifting telescopic rod 9 is controlled to extend to move the mold into the slideway 11, and when the mold corresponds to the temporary storage station 14, the magnetic connection with the back-shaped mold is cancelled, and then the telescopic end of the third mold-shifting telescopic rod 93 is controlled to extend to push the mold into the temporary storage station 14.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A polyimide hot compression molding auxiliary device, characterized in that: The invention comprises a mold and an auxiliary device, wherein the mold comprises a Chinese-shaped mold, an upper mold and a lower mold, the Chinese-shaped mold is provided with a through cavity, the upper mold and the lower mold can be inserted into the cavity to form a model cavity, and the auxiliary device comprises: Rack (1); A fixing mechanism, used for fixing the circular mold on the frame (1); A grabbing mechanism (3) is installed on the frame (1), capable of grabbing the upper mold and the lower mold respectively, and capable of making the upper mold and the lower mold pass out of the U-shaped mold, or retract into the U-shaped mold to form the mold cavity; A material removal mechanism (4) is mounted on the frame (1) and is used to remove the material from the lower die when the lower die and the material pass downward out of the circular die; A cleaning and coating mechanism, comprising an adjusting mechanism (5) mounted on the upper part of the frame (1) and a cleaning mechanism (6) and a coating mechanism (7) mounted on the adjusting mechanism (5), wherein the adjusting mechanism (5) can drive the cleaning mechanism (6) and the coating mechanism (7) to rise and fall in the vertical direction, and to move horizontally and longitudinally, wherein the cleaning mechanism (6) has a horizontal state for cleaning the opposing surfaces of the upper mold and the lower mold, and a vertical state for cleaning the side walls of the upper mold, the side walls of the lower mold and the side walls of the cavity, and wherein the coating mechanism (7) has a horizontal state for coating the opposing surfaces of the upper mold and the lower mold, and a vertical state for coating the side walls of the upper mold, the side walls of the lower mold and the side walls of the cavity; and A feeding mechanism (8) is arranged on the frame (1) and is used to add powder into the cavity.

2. A polyimide hot compression molding auxiliary device according to claim 1, characterized in that: The frame (1) is provided with a fixed station (12), one end of the fixed station (12) is provided with a slideway (11) connected to the outside, one side of the slideway (11) is provided with a connected feeding station (13), and the other side is provided with a connected temporary storage station (14), the mold can be placed on the slideway (11), and can slide into the fixed station (12), the feeding station (13) or the temporary storage station (14), the fixing mechanism is provided on the fixed station (12), and is used to fix the U-shaped mold in the fixed station (12), and the feeding mechanism (8) is used to add powder into the cavity when the U-shaped mold slides into the feeding station (13).

3. A polyimide hot compression molding auxiliary device according to claim 2, characterized in that: The fixing mechanism comprises a fixed telescopic rod (2); two groups of the fixed telescopic rods (2) are correspondingly arranged on both sides of the fixing station (12).

4. A polyimide hot compression molding auxiliary device according to claim 2, characterized in that: The auxiliary device also includes a mold shifting mechanism, the mold shifting mechanism includes a first mold shifting telescopic rod (9), a second mold shifting telescopic rod (91) and a third mold shifting telescopic rod (93), the first mold shifting telescopic rod (9) is arranged at the other end of the fixed station (12), and the telescopic end is provided with a first electromagnet (92) that can be magnetically connected to the U-shaped mold, the first mold shifting telescopic rod (9) can drive the U-shaped mold to move back and forth in the slideway (11) and the fixed station (12), and can make the U-shaped mold correspond to the feeding station (13) or the temporary storage station (14), and the second The mold-shifting telescopic rod (91) is arranged on the other side of the slideway (11) corresponding to the feeding station (13), and the telescopic end is provided with the first electromagnet (92) which can be magnetically connected to the U-shaped mold. The second mold-shifting telescopic rod (91) can drive the U-shaped mold to move back and forth in the slideway (11) and the feeding station (13). The third mold-shifting telescopic rod (93) is arranged on the other side of the slideway (11) corresponding to the temporary storage station (14), and the third mold-shifting telescopic rod (93) can drive the U-shaped mold to move from the slideway (11) to the temporary storage station (14).

5. A polyimide hot compression molding auxiliary device according to claim 2, characterized in that: The feeding mechanism (8) comprises a material bin (81) and a measuring cup (82); the material bin (81) is arranged on the frame (1) and has a feeding port connected to the outside at the top; a cover plate (83) capable of opening and closing the feeding port is arranged on the top of the frame (1); a discharge pipe (84) is arranged at the bottom of the material bin (81); the measuring cup (82) is arranged on the frame (1) and is located above the feeding station (13); the top of the measuring cup (82) can be connected to the bottom of the discharge pipe (84), and the bottom of the measuring cup (82) can be connected to the cavity; the bottom of the discharge pipe (84) and the bottom of the measuring cup (82) are both provided with valves for controlling opening and closing.

6. A polyimide hot compression molding auxiliary device according to claim 1, characterized in that: The gripping mechanism (3) comprises an upper slide plate (31) and a lower slide plate (32); the upper slide plate (31) is movably arranged on the upper part of the frame (1), and a second electromagnet (33) capable of being magnetically connected to the upper mold is arranged at the bottom end; the lower slide plate (32) is movably arranged on the lower part of the frame (1), and a second electromagnet (33) capable of being magnetically connected to the lower mold is arranged at the top end.

7. A polyimide hot compression molding auxiliary device according to claim 1, characterized in that: The material shifting mechanism (4) comprises a fixed plate (41), a material shifting rod (42) and a conveyor belt (43); the fixed plate (41) is fixedly arranged at the lower part of the frame (1); the material shifting rod (42) is arranged at the top end of the fixed plate (41) so as to be horizontally and longitudinally slidable; when the lower die together with the material passes downward out of the circular die, one end of the material shifting rod (42) is located at one side of the material; the conveyor belt (43) is arranged at the lower part of the frame (1); the conveyor belt (43) is used to receive the material removed from the lower die and transport the material to the outside of the frame (1).

8. A polyimide hot compression molding auxiliary device according to claim 1, characterized in that: The adjusting mechanism (5) comprises a first mounting plate (51), a second mounting plate (52) and a third mounting plate (53); the first mounting plate (51) is arranged on the upper part of the frame (1) in a manner that it can be raised or lowered, the second mounting plate (52) is arranged on the top of the first mounting plate (51) in a manner that it can be horizontally slidable, the third mounting plate (53) is arranged on the top of the second mounting plate (52) in a manner that it can be horizontally slidable, and the cleaning mechanism (6) and the coating mechanism (7) are arranged on the third mounting plate (53).

9. A polyimide hot compression molding auxiliary device according to claim 8, characterized in that: The cleaning mechanism (6) comprises a scraping component and a brushing component, the scraping component comprising a first mounting seat (61), a first double-output shaft motor (62), a first scraper (621), a second scraper (622) and a first driving telescopic rod (63), the first mounting seat (61) being hinged on the third mounting plate (53), the first double-output shaft motor (62) being fixedly mounted on the first mounting seat (61), the output shaft at one end of the first double-output shaft motor (62) being coaxially connected to the first scraper (621), and the output shaft at the other end being coaxially connected to the first scraper (621). The second scraper (622) is connected, and the two ends of the first driving telescopic rod (63) are respectively hinged to the first mounting seat (61) and the third mounting plate (53), and the first driving telescopic rod (63) can drive the first mounting seat (61) to rotate, so that the first scraper (621) has a horizontal state in contact with the opposite surfaces of the upper mold and the lower mold, and has a vertical state in which the first scraper (621) can contact the side wall of the lower mold and the side wall of the cavity, and the second scraper (622) can contact the side wall of the upper mold; The brush cleaning assembly comprises a second mounting seat (64), a second double-output shaft motor (65), a first brush rod (651), a second brush rod (652) and a second driving telescopic rod (66), wherein the second mounting seat (64) is hinged on the third mounting plate (53), the second double-output shaft motor (65) is fixed on the second mounting seat (64), an output shaft at one end of the second double-output shaft motor (65) is coaxially connected to the first brush rod (651), and an output shaft at the other end of the second double-output shaft motor (65) is coaxially connected to the second brush rod (65 2), the two ends of the second driving telescopic rod (66) are respectively hinged to the second mounting seat (64) and the third mounting plate (53), and the second driving telescopic rod (66) can drive the second mounting seat (64) to rotate, so that the first brush rod (651) has a horizontal state in contact with the opposite surfaces of the upper mold and the lower mold, and has a vertical state in which the first brush rod (651) can contact the side wall of the lower mold and the side wall of the cavity, and the second brush rod (652) can contact the side wall of the upper mold.

10. A polyimide hot compression molding auxiliary device according to claim 8, characterized in that: The coating mechanism (7) comprises a third mounting seat (71), a third double-output shaft motor (72), a first brush (73), a second brush (74) and a third driving telescopic rod (75); the third mounting seat (71) is hinged on the third mounting plate (53), the third double-output shaft motor (72) is fixed on the third mounting seat (71), one end of the output shaft of the third double-output shaft motor (72) is coaxially connected to the first brush (73), and the other end of the output shaft is coaxially connected to the second brush (74), the first brush (73) and the third The surfaces of the two brushes (74) are connected to the demoulding agent through an internal pipeline, and the two ends of the third driving telescopic rod (75) are respectively hinged to the third mounting seat (71) and the third mounting plate (53), and the third driving telescopic rod (75) can drive the third mounting seat (71) to rotate, so that the first brush (73) has a horizontal state in contact with the opposite surfaces of the upper mold and the lower mold, and has a vertical state in which the first brush (73) can contact the side wall of the lower mold and the side wall of the cavity, and the second brush (74) can contact the side wall of the upper mold.

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