A polyimide film heat treatment device

Abstract

The present invention belongs to the technical field of heat treatment of polyimide film, specifically a heat treatment device for polyimide film, including a transmission and support device, which is placed on the ground, and can press and shape the polyimide film through the transmission and support device, and transmit the polyimide film to the surface. The present invention can prevent the polyimide film from wrinkling, bending and winding during preheating, and prevent the film from shifting during preheating, and can increase the preheating processing rate through the mutual cooperation of the expansion and heating smoothing device, the telescopic and guiding device and the rotating and heating air guiding device, and can fully preheat the polyimide film at the same time, and can keep the preheating temperature constant through the cooperation of the constant temperature heating circuit with the electric heating plate 242 and the heating blowing plate 44.

Description

Technical Field

[0001] The invention relates to the technical field of heat treatment of polyimide films, in particular to a heat treatment device for polyimide films. Background Art

[0002] Polyimide film, referred to as PI film, is one of the earliest products of polyimide. It is also called "golden film" because of its high cost and strong performance. Polyimide film is mainly formed by polycondensation and casting of pyromellitic dianhydride (PMDA) and diaminodiphenyl ether (ODA) in a strong polar solvent, and then imidization. It is the best performing thin-film insulating material in the world, with excellent high and low temperature resistance, electrical insulation, radiation resistance, and dielectric resistance. It is particularly suitable for use as a substrate for flexible printed circuit boards and various high-temperature resistant motor and electrical insulation materials. In addition, transparent polyimide film can also be used to make soft solar cell base panels.

[0003] Heat treatment of polyimide film refers to the process of high-temperature treatment of polyimide film to improve its performance. The heat treatment process can improve the mechanical properties of polyimide film, such as tensile strength, elastic modulus, etc.; during the heat treatment process, appropriately increasing the temperature and extending the heat treatment time can enhance the crystallinity of the film and the interaction force between molecules, thereby improving its mechanical properties. In addition, heat treatment can also reduce the CTE (coefficient of thermal expansion) of polyimide film and improve its thermal stability.

[0004] The existing heat treatment devices for polyimide films generally include hot air furnaces, electric heating furnaces, infrared radiation heating devices, etc., and the existing preheating method is to fix the polyimide film and then preheat the surface of the polyimide film by heating equipment, but the existing treatment method faces the following defects:

[0005] 1. Inaccurate temperature control: During the heat treatment process, temperature control is crucial to the performance of polyimide film. If the temperature control is not accurate, the performance of the film may not reach the optimal state;

[0006] 2. Slow processing speed: Existing heat treatment devices and methods may have the problem of slow processing speed, which will affect production efficiency and increase production costs;

[0007] 3: The film is prone to shifting: During the heat treatment process, the polyimide film may shift, resulting in uneven treatment and affecting the performance of the film.

[0008] To this end, we propose a polyimide film heat treatment device. Summary of the invention

[0009] In view of the above problems and / or the problems existing in the existing polyimide film heat treatment device, the present invention is proposed.

[0010] Therefore, the purpose of the present invention is to provide a polyimide film heat treatment device, which can preheat the polyimide film first through an expansion and heating smoothing device, and can also press, stretch and stretch the polyimide film, and then through the cooperation of a telescopic and guiding device and a rotating and heating air guide device, the heated blowing plate can preheat the film for a second time, which can solve the above-mentioned existing problems.

[0011] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0012] A polyimide film heat treatment device, comprising:

[0013] A transmission and support device is placed on the ground, and the polyimide film can be pressed and shaped by the transmission and support device, and the polyimide film can be transmitted to the surface;

[0014] An expansion and heating and smoothing device is installed at the upper end of the transmission and support device, and the bottom of the expansion and heating and smoothing device is in contact with the surface of the polyimide film. By driving the expansion and heating and smoothing device, the surface of the polyimide film can be heated while being movable and limited;

[0015] The telescopic and guiding device is installed on the inner wall of the expansion and heating and smoothing device, and the rotation of the rotating and heating air guide device can be limited and guided by the telescopic and guiding device. At the same time, the expansion and heating and smoothing device can be smoothly expanded by the telescopic and guiding device.

[0016] The rotating and heating air guiding device is slidably connected to the inside of the telescopic and guiding device, and is arranged at the inner center of the expansion and heating smoothing device. The rotating and heating air guiding device can realize rotational blowing heating of the polyimide film under the limiting guidance of the telescopic and guiding device. The polyimide film can be blown and heated sequentially from the inside to the outside by driving the rotating and heating air guiding device. At the same time, the rotating and heating air guiding device can be folded and unfolded under the expansion of the expansion and heating smoothing device.

[0017] As a preferred solution of the polyimide film heat treatment device described in the present invention, the transmission and support device includes:

[0018] An operating table is placed on the ground, and the surface of the operating table can be used to place the polyimide film;

[0019] A transmission component is installed at the right end of the operating table, and the polyimide film can be pressed and shaped by the transmission component, and the polyimide film is transmitted to the surface of the operating table;

[0020] A support assembly is installed at the left end of the surface of the operating table, and the expansion and heating smoothing device can be connected through the support assembly.

[0021] As a preferred solution of the polyimide film heat treatment device described in the present invention, the transmission component includes:

[0022] Brackets are installed at the front and rear ends of the right side of the operating table surface, and the brackets are arranged in two groups;

[0023] A blocking shell is arranged between the two sets of brackets;

[0024] A feed inlet, which is arranged at the top of the blocking shell, and through which the polyimide film can be placed into the interior of the blocking shell;

[0025] A discharge port is provided at the bottom of the blocking shell, and the polyimide film can be discharged to the surface of the operating table through the discharge port;

[0026] A transmission drive motor, which is arranged on the rear end surface of the rear end bracket;

[0027] A transmission roller is rotatably connected between the two sets of brackets, and the transmission roller is arranged inside the blocking shell. At the same time, the rear port of the transmission roller is connected to the output end of the transmission drive motor, and the transmission roller is driven by the transmission drive motor to rotate inside the blocking shell, and the transmission roller cooperates with the blocking shell to press and shape the polyimide film, and discharge the polyimide film onto the surface of the operating table;

[0028] The support assembly comprises:

[0029] A column mounted on the left end of the surface of the operating table;

[0030] A support frame mounted on the upper end of the outer wall of the column;

[0031] The telescopic rod is installed around the bottom of the support frame, and the other end of the telescopic rod is connected to the top of the expansion and heating and smoothing device, and the expansion and heating and smoothing device can be lifted and lowered by the telescopic rod.

[0032] As a preferred solution of the polyimide film heat treatment device described in the present invention, the expansion and heating smoothing device includes:

[0033] an extension drive assembly, the top of which is connected to the bottom of the telescopic rod;

[0034] The first expansion component has one end rotatably connected to the output end of the expansion drive component, and the middle end rotatably connected to the bottom of the expansion drive component, and can drive the first expansion component to perform expansion activities through the drive of the expansion drive component;

[0035] The second extension arm is rotatably connected to the output end of the first extension assembly, and can drive the second extension arm to rotate through the drive of the first extension assembly;

[0036] The preheating component is rotatably connected to the bottom of the second extension arm, and through the cooperation of the first extension component and the second extension arm, several groups of preheating components can vertically contact the polyimide film, and at the same time, the polyimide film is expanded and pressed from the inside to the outside while preheating the polyimide film.

[0037] As a preferred solution of the polyimide film heat treatment device described in the present invention, the extended drive assembly includes:

[0038] The top of the mounting plate is in contact with the bottom of the telescopic rod, and the mounting plate can be driven to move up and down by the telescopic rod;

[0039] A shaft seat is arranged around the bottom of the mounting plate, and the interior of the shaft seat is rotatably connected to the middle end of the first expansion assembly;

[0040] A hydraulic rod is mounted at the top center of the mounting plate, and an output end of the hydraulic rod penetrates the mounting plate;

[0041] A driving shaft, one end of which is rotatably connected to the outer wall of the output end of the hydraulic rod, and the other end of which is rotatably connected to the inner port of the first expansion component, and driven by the hydraulic rod to drive the driving shaft to rotate, so that the driving shaft drives the first expansion component to rotate;

[0042] The first extension component includes:

[0043] The first expansion arm has an inner end rotatably connected to the other end of the driving shaft, and a middle end rotatably connected to the inside of the shaft seat, and the first expansion arm can be driven to rotate by the rotation of the driving shaft;

[0044] a built-in slot disposed on a top portion of the first extension arm;

[0045] A movable gear is rotatably connected to the inner lower end of the built-in groove, and the rotating end of the movable gear is connected to the top of the second extension arm, and the second extension arm can be driven to rotate by the rotation of the movable gear;

[0046] A follower gear is rotatably connected to the inner middle position of the built-in groove, and the outer wall of the follower gear is meshed and connected with the movable gear;

[0047] A helical gear is arranged on one side of the follower gear, and the helical gear and the follower gear are on the same rotating rod;

[0048] A first steering gear is rotatably connected to the inner upper end of the built-in groove, and the outer wall of the first steering gear is meshed with the outer wall of the helical gear;

[0049] A driving motor is mounted on one side of the inner wall of the built-in groove;

[0050] The second steering gear is connected to the output end of the driving motor, and the outer wall of the second steering gear is meshed with the outer wall of the first steering gear. The second steering gear can be driven by the driving motor to rotate, so that the second steering gear drives the first steering gear, the bevel gear, the follower gear and the movable gear to rotate;

[0051] The preheating assembly comprises:

[0052] An adjustment drive motor is mounted on one side of the lower end of the outer wall of the second extension arm;

[0053] The electric heating plate is rotatably connected to the bottom of the second extension arm, and the rotating end of the electric heating plate is connected to the output end of the adjusting drive motor. By adjusting the rotation of the drive motor, the position of the electric heating plate can be adjusted so that the electric heating plate is always parallel to the operating table.

[0054] As a preferred solution of the polyimide film heat treatment device described in the present invention, wherein: the electric heating plate is connected to a constant temperature heating circuit, and the constant temperature heating circuit can keep the electric heating plate at a constant temperature at all times;

[0055] The constant temperature heating circuit is connected with a power supply, a fuse, a temperature limiter, a thermal insulation resistor, a comparator, a temperature sensor and an electric heating plate, and the fuse is connected in series with the power supply, and the circuit can be protected by the fuse. The temperature limiter is connected in parallel with the thermal insulation resistor in the circuit, and the temperature can be controlled by the temperature limiter. When the temperature reaches a preset threshold, the circuit can be automatically disconnected or the power of the heating element can be adjusted to keep the ambient temperature within a desired range. At the same time, the electric heating plate can be kept warm by the thermal insulation resistor. When the temperature reaches a set value, the resistance value will increase sharply, thereby limiting the current passing through the element, thereby achieving the effect of heat preservation and energy saving. The electric heating plate is connected in series with the circuit, and the temperature sensor is connected in parallel with the electric heating plate. The temperature of the electric heating plate is monitored by the temperature sensor. One end of the comparator is connected to the constant temperature heating circuit, and the other end is connected to the temperature sensor. The voltage signal output by the temperature sensor can be compared with a preset threshold voltage signal by the comparator. When the ambient temperature is lower than the threshold, the comparator outputs a low-level signal to ensure that the electric heating plate is at a constant temperature of the threshold.

[0056] As a preferred solution of the polyimide film heat treatment device described in the present invention, the telescopic and guiding device includes:

[0057] A guide assembly is mounted on the upper end of the inner surface of the second extension arm, and the guide assembly is arranged in a plurality of groups, and the rotation of the rotation and the heating air guide device can be limited and guided by the guide assembly;

[0058] The two ends of the telescopic component are slidably connected inside the two groups of guide components, and the telescopic component is telescopically movable inside the two groups of guide components. Through the telescopic movement of the telescopic component, the expansion and heating smoothing device can smoothly perform expansion activities.

[0059] As a preferred solution of the polyimide film heat treatment device described in the present invention, the guide assembly includes:

[0060] A first L-shaped guide plate mounted on an upper end of an inner surface of the second extension arm;

[0061] A first guide groove is provided on one side of the upper end of the inner wall of the first L-shaped guide plate, and the first guide groove can limit and guide the rotation of the rotating and heating air guide device;

[0062] A limiting groove is arranged on the other side of the upper end of the inner wall of the first L-shaped guide plate, and the top of the telescopic assembly is slidably connected to the inside of the limiting groove, and the telescopic movement of the telescopic assembly can be limited and guided by the limiting groove;

[0063] A first tooth groove, which is arranged at a side end of an inner wall of the first L-shaped guide plate;

[0064] The telescopic assembly comprises:

[0065] A second L-shaped guide plate, which is slidably connected to the inside of the first L-shaped guide plate;

[0066] A T-shaped convex plate is arranged at one end of the top of the second L-shaped guide plate, and the T-shaped convex plate is slidably connected to the inside of the first guide groove;

[0067] A second guide groove is provided at the bottom of the T-shaped convex plate, and the telescopic movement of the telescopic assembly can be limited and guided by the second guide groove;

[0068] A limit block is arranged on both sides of the other end of the top of the second L-shaped guide plate, and the limit block is slidably connected to the inside of the limit groove, and the cooperation between the limit block and the limit groove can limit and guide the telescopic movement of the second L-shaped guide plate;

[0069] The second tooth groove is arranged at the inner wall side end of the second L-shaped guide plate.

[0070] As a preferred embodiment of the polyimide film heat treatment device described in the present invention, the rotating and heating air guide device comprises:

[0071] A peripheral limiting assembly is arranged between the plurality of groups of second extension arms, and the folding and outward expansion activities can be realized through the peripheral limiting assembly;

[0072] The bottom of the rotating assembly is rotatably connected to the top of the peripheral limiting assembly, and the top is slidably connected to the inside of the telescopic and guiding device, so that the driving end of the rotating assembly contacts the inner wall side end of the telescopic and guiding device, and the peripheral limiting assembly, the external expansion assembly and the heating and blowing disk can be driven to rotate through the rotating assembly;

[0073] The expansion component is rotatably connected to the top of the rotating component, and after the rotating component expands outward to the maximum area, the expansion component can be driven to expand outward, thereby driving the heating blowing disk to blow and heat the polyimide film from the inside to the outside;

[0074] The heating blow plate is installed at the bottom of the external expansion component, and the top of the heating blow plate is connected to an external heating fan. At the same time, a constant temperature heating circuit is connected inside the heating blow plate. The heating blow plate can blow and heat the polyimide film from the inside to the outside, and at the same time, the polyimide film is rotated and blown to ensure that each area of ​​the polyimide film from the inside to the outside can be blown and heated.

[0075] As a preferred solution of the polyimide film heat treatment device described in the present invention, the peripheral limiting component includes:

[0076] The first shaft column is provided in two groups, and the two groups of the first shaft columns are rotatably connected to the first folding rod through a universal shaft, and each two groups of the first shaft columns are provided as one item;

[0077] A first folding rod is installed between the two groups of first shaft columns, and the middle part of the first folding rod is rotatably connected through the rotating shaft, and the folding drive of the peripheral limit assembly can be realized through the first folding rod;

[0078] A second shaft column is rotatably connected between the tops of the two first shaft columns, and the second shaft columns are arranged in two groups, and each two groups of second shaft columns are arranged in one item;

[0079] A second folding rod is rotatably connected between the two sets of second shaft columns through a universal wheel, and the folding activity of the peripheral limit assembly can be realized through the cooperation of the first folding rod and the second folding rod;

[0080] The rotating assembly comprises:

[0081] A rotation drive motor mounted on the bottom of another set of the first shaft columns;

[0082] A rotating rod is rotatably connected to the top of another group of the first shaft column, and the bottom thereof passes through the first shaft column until the bottom thereof is connected to the driving end of the rotation driving motor, and at the same time, the top of the rotating rod is slidably connected to the inside of the first guide groove and the second guide groove;

[0083] A rotating gear is arranged at the upper end of the outer wall of the rotating rod, and the outer wall of the rotating gear is meshed and connected with the first tooth groove and the second tooth groove, and the rotating rod and the rotating gear can be driven to rotate by the rotating drive motor, so that the rotating gear can drive the peripheral limit assembly to rotate;

[0084] A follower rotating rod is rotatably connected to another group of tops of the other plurality of first shaft columns, and the top of the follower rotating rod is slidably connected to the inside of the first guide groove and the second guide groove, so that the outer wall of the gear on the outer wall is meshed and connected to the first tooth groove and the second tooth groove, so that the rotation drive of the peripheral limit assembly can be realized through the cooperation of the rotating rod and the rotating gear with the follower rotating rod;

[0085] The external expansion component comprises:

[0086] The third shaft column is rotatably connected to the top of one of the first shaft columns, and the third shaft columns are arranged in two groups, each two groups of the third shaft columns are arranged in one group, and the bottom of the third shaft column is connected to the heating and blowing disk, so that the heating and blowing disk moves with the movement of the third shaft column, thereby realizing the outward expansion movement drive;

[0087] The fourth shaft column is rotatably connected to the top of the third shaft column, and the fourth shaft column is arranged in two groups, each two groups of the fourth shaft column are arranged as one item, and through the cooperation of the third shaft column, the fourth shaft column and the third folding rod, a five-pointed star shape is presented, and at the same time, through the cooperation of the third shaft column, the fourth shaft column and the third folding rod, the expansion activity of the five-pointed star can be realized;

[0088] A third folding rod, which is rotatably connected between the two sets of third shaft columns and the two sets of fourth shaft columns via a universal shaft;

[0089] A first swing drive motor is mounted on the top of the fourth shaft column and is arranged on the connecting shaft between the fourth shaft column and the third shaft column, and the output end of the first swing drive motor passes through the inner wall of the fourth shaft column connected to the third shaft column, so that the third shaft column can be driven to rotate by the drive of the first swing drive motor;

[0090] The second swing drive motor is installed on the top of the other fourth shaft column and is set on the connecting shaft of the other fourth shaft column and the other third shaft column, and the output end of the second swing drive motor is connected to the inner wall of the other fourth shaft column, so that the fourth shaft column can be driven to rotate by the drive of the second swing drive motor. At the same time, the first swing drive motor and the second swing drive motor have opposite rotation directions, which can drive the third shaft column, the fourth shaft column and the third folding rod to perform expansion activities.

[0091] Compared with existing technologies:

[0092] The polyimide film can be preheated first by the expansion and heating smoothing device, and at the same time, the polyimide film can be pressed, stretched and extended, so that the polyimide film is slightly deformed while being preheated and stretched and smoothed by the expansion and heating smoothing device, so as to prevent the polyimide film from wrinkling, bending and winding during preheating, and prevent the film from shifting during preheating;

[0093] By the mutual cooperation of the expansion and heating smoothing device, the telescopic and guiding device and the rotating and heating air guiding device, the telescopic and guiding device can be expanded to the maximum range through the expansion of the expansion and heating smoothing device, and at the same time, the outer part of the rotating and heating air guiding device can be unfolded from a folded state to a polygonal state, and the heating blowing disk can be driven to move from a low position to a high position to increase the blowing range of the heating blowing disk, so that the preheating processing rate can be increased through the mutual cooperation of the expansion and heating smoothing device, the telescopic and guiding device and the rotating and heating air guiding device;

[0094] By cooperating the telescopic and guiding device with the rotating and heated air guide device, the rotating and heated air guide device can perform a rotary outward-expanding blowing, so that the heated blowing disk can perform a rotary secondary preheating of the surface of the polyimide film from the inside to the outside, so that the polyimide film can be fully preheated. At the same time, by cooperating the constant temperature heating circuit with the electric heating disk and the heated blowing disk, the preheating temperature can be kept constant. BRIEF DESCRIPTION OF THE DRAWINGS

[0095] Figure 1 A schematic diagram of the overall main structure provided by the present invention;

[0096] Figure 2 A schematic diagram of the main structure of the transmission and support device provided by the present invention;

[0097] Figure 3 A rear structural schematic diagram of the transmission and support device provided by the present invention;

[0098] Figure 4 A schematic diagram of the connection structure of the expansion and heating and smoothing device, the telescopic and guiding device, and the rotating and heating air guiding device provided by the present invention;

[0099] Figure 5 A schematic diagram of the connection structure between the expansion and heating and smoothing device and the telescopic and guiding device provided by the present invention;

[0100] Figure 6 A schematic diagram of the disassembled structure of the expansion and heating and smoothing device provided by the present invention;

[0101] Figure 7 A schematic diagram of the split structure of the first extension component and the second extension arm provided by the present invention;

[0102] Figure 8 A schematic diagram of the internal structure of the first expansion component provided by the present invention;

[0103] Fig. 9 A schematic diagram of the structure of the telescopic and guiding device provided by the present invention;

[0104] Fig.10 A schematic diagram of the split structure of the guide assembly and the telescopic assembly provided by the present invention;

[0105] Fig.11 A bottom view structural schematic diagram of the guide assembly provided by the present invention;

[0106] Fig.12 A bottom view structural diagram of the telescopic assembly provided by the present invention;

[0107] Fig.13 A schematic diagram of the upper view structure and the left view structure provided by the present invention;

[0108] Fig.14 A schematic diagram of the connection structure between the guide assembly and the telescopic assembly provided by the present invention;

[0109] Fig.15 A schematic diagram of the connection structure between the telescopic and guiding device and the rotating and heating air guiding device provided by the present invention;

[0110] Fig.16 A schematic diagram of the disassembled structure of the rotating and heating air guide device provided by the present invention;

[0111] Fig.17 A schematic diagram of the split structure of the peripheral limit assembly and the rotating assembly provided by the present invention;

[0112] Fig.18 A schematic diagram of the connection structure between the first shaft column and the first folding rod provided by the present invention;

[0113] Fig.19 A schematic diagram of the structure of the external expansion component provided by the present invention;

[0114] Fig. 20 A bottom-up structural schematic diagram of an external expansion assembly provided by the present invention;

[0115] Fig.21 A schematic diagram of the connection structure of the heating and blowing disk provided by the present invention;

[0116] Fig. 22 This is a constant temperature heating circuit diagram provided by the present invention.

[0117] In the figure: transmission and support device 1, operating table 11, transmission component 12, bracket 121, blocking shell 122, feed port 123, discharge port 124, transmission drive motor 125, transmission roller 126, support component 13, column 131, support frame 132, telescopic rod 133, expansion and heating smoothing device 2, expansion drive component 21, mounting plate 211, shaft seat 212, hydraulic rod 213, drive shaft rod 214, first expansion component 22, first expansion arm 221, built-in groove 222, movable gear 223, follower gear 224, bevel gear 225, first steering gear 226, drive motor 227, second steering gear 228, second expansion arm 23, preheating component 24, adjustment drive motor 241, electric heating plate 242, telescopic And the guide device 3, the guide assembly 31, the first L-shaped guide plate 311, the first guide groove 312, the limiting groove 313, the first tooth groove 314, the telescopic assembly 32, the second L-shaped guide plate 321, the T-shaped convex plate 322, the second guide groove 323, the limiting block 324, the second tooth groove 325, the rotating and heating air guide device 4, the peripheral limiting assembly 41, the first shaft column 411, the first folding rod 412, the second shaft column 413, the second folding rod 414, the rotating assembly 42, the rotating drive motor 421, the rotating rod 422, the rotating gear 423, the follower rotating rod 424, the external expansion assembly 43, the third shaft column 431, the fourth shaft column 432, the third folding rod 433, the first swing drive motor 434, the second swing drive motor 435, and the heating and blowing plate 44. DETAILED DESCRIPTION

[0118] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0119] The present invention provides a polyimide film heat treatment device, please refer to Figure 1-22 , including a transmission and supporting device 1, an expansion and heating and smoothing device 2, a telescopic and guiding device 3 and a rotating and heating air guiding device 4;

[0120] The transmission and support device 1 is placed on the ground, and the polyimide film can be pressed and shaped by the transmission and support device 1, and the polyimide film can be transmitted to the surface. The transmission and support device 1 includes: an operating table 11, a transmission component 12, a bracket 121, a blocking shell 122, a feed port 123, a discharge port 124, a transmission drive motor 125, a transmission roller 126, a support component 13, a column 131, a support frame 132 and a telescopic rod 133. The operating table 11 is placed on the ground, and the surface of the operating table 11 can be used to place the polyimide film. The transmission component 12, It is installed at the right end of the operating table 11, and can press and shape the polyimide film through the transmission component 12, and transmit the polyimide film to the surface of the operating table 11, the bracket 121, which is installed at the front and rear ends of the right side of the surface of the operating table 11, and the bracket 121 is set in two groups, the blocking shell 122 is set between the two groups of brackets 121, the feed port 123 is set at the top of the blocking shell 122, and the polyimide film can be put into the inside of the blocking shell 122 through the feed port 123, and the discharge port 124 is set at the bottom of the blocking shell 122, and through The discharge port 124 can discharge the polyimide film to the surface of the operating table 11, the transmission drive motor 125 is arranged on the rear end surface of the rear end bracket 121, and the transmission roller 126 is rotatably connected between the two sets of brackets 121, and the transmission roller 126 is arranged inside the blocking shell 122. At the same time, the rear side port of the transmission roller 126 is connected to the output end of the transmission drive motor 125, and the transmission roller 126 is driven by the transmission drive motor 125 to rotate inside the blocking shell 122, and the transmission roller 126 cooperates with the blocking shell 122 to be able to carry out Press to shape, and discharge the polyimide film to the surface of the operating table 11, the support component 13, which is installed on the left end of the surface of the operating table 11, and the expansion and heating smoothing device 2 can be connected through the support component 13, the column 131, which is installed on the left end of the surface of the operating table 11, the support frame 132, which is installed on the upper end of the outer wall of the column 131, the telescopic rod 133, which is installed around the bottom of the support frame 132, and the other end of the telescopic rod 133 is connected to the top of the expansion and heating smoothing device 2, and the expansion and heating smoothing device 2 can be lifted and lowered through the telescopic rod 133.

[0121] The expansion and heating smoothing device 2 is installed at the upper end of the transmission and support device 1, and the bottom of the expansion and heating smoothing device 2 is in contact with the surface of the polyimide film. By driving the expansion and heating smoothing device 2, the surface of the polyimide film can be heated while being movable and limited. The expansion and heating smoothing device 2 includes: an expansion drive component 21, a mounting plate 211, an axle seat 212, a hydraulic rod 213, a drive shaft 214, a first expansion component 22, a first expansion arm 221, a built-in groove 222, a movable gear 223, a follower gear 224, a bevel gear 225, a first steering gear 226, a drive motor 227, a second steering gear 228, a second expansion arm 23, a preheating component 24, and an adjustment drive motor. The machine 241 and the electric heating plate 242, the extended driving component 21, the top of which is connected to the bottom of the telescopic rod 133, the mounting plate 211, the top of which is in contact with the bottom of the telescopic rod 133, and the mounting plate 211 can be driven to rise and fall through the telescopic rod 133, the shaft seat 212, which is arranged around the bottom of the mounting plate 211, and the inside of the shaft seat 212 is rotated to connect the middle end of the first extended component 22, the hydraulic rod 213, which is installed at the top center of the mounting plate 211, and the output end of the hydraulic rod 213 passes through the mounting plate 211, and the driving shaft 214, one end of which is rotatably connected to the outer wall around the output end of the hydraulic rod 213, and the other end is rotatably connected to the inner port of the first extended component 22, and can be driven by the hydraulic rod 213. The first extension component 22 can be driven to rotate by the driving shaft 214, so that the driving shaft 214 drives the first extension component 22 to rotate. The first extension component 22 has one end rotatably connected to the output end of the extension drive component 21, and the middle end is rotatably connected to the bottom of the extension drive component 21. The first extension component 22 can be driven to perform expansion activities through the drive of the extension drive component 21. The first extension arm 221 has an inner end rotatably connected to the other end of the driving shaft 214, and the middle end is rotatably connected to the inside of the shaft seat 212. The rotation of the driving shaft 214 can drive the first extension arm 221 to rotate. The built-in groove 222 is set at the top of the first extension arm 221, and the movable gear 223 is rotatably connected to the inside of the built-in groove 222. The lower end of the movable gear 223 is connected to the top of the second expansion arm 23, and the second expansion arm 23 can be driven to rotate by the rotation of the movable gear 223. The follower gear 224 is connected to the middle position of the inner part of the built-in groove 222, and the outer wall of the follower gear 224 is meshed with the movable gear 223. The bevel gear 225 is arranged on one side of the follower gear 224, and the bevel gear 225 and the follower gear 224 are on the same rotating rod. The first steering gear 226 is connected to the upper end of the inner part of the built-in groove 222, and the outer wall of the first steering gear 226 is meshed with the outer wall of the bevel gear 225. The driving motor 227 is installed on one side of the inner wall of the built-in groove 222. The second steering gear 228,It is connected to the output end of the driving motor 227, and the outer wall of the second steering gear 228 is meshed with the outer wall of the first steering gear 226, and the second steering gear 228 can be driven to rotate by the driving motor 227, so that the second steering gear 228 drives the first steering gear 226, the bevel gear 225, the follower gear 224 and the movable gear 223 to rotate, the second expansion arm 23 is rotatably connected to the output end of the first expansion component 22, and the second expansion arm 23 can be driven to rotate by the driving of the first expansion component 22, and the preheating component 24 is rotatably connected to the output end of the first expansion component 22. The first extension component 22 cooperates with the second extension arm 23 to enable the plurality of preheating components 24 to vertically contact the polyimide film, and at the same time, the polyimide film is preheated while being expanded and pressed from the inner side toward the outer side. The adjusting drive motor 241 is mounted on one side of the lower end of the outer wall of the second extension arm 23. The electric heating plate 242 is rotatably connected to the bottom of the second extension arm 23, and the rotating end of the electric heating plate 242 is connected to the output end of the adjusting drive motor 241. By adjusting the rotation of the driving motor 241, the position of the electric heating plate 242 can be adjusted so that the electric heating plate 242 The electric heating plate 242 is always parallel to the operating table 11. The electric heating plate 242 is connected to the constant temperature heating circuit, and the constant temperature heating circuit can keep the electric heating plate 242 at a constant temperature. The constant temperature heating circuit is connected with a power supply, a fuse, a temperature limiter, a thermal insulation resistor, a comparator, a temperature sensor and the electric heating plate. The fuse is connected in series with the power supply, and the circuit can be protected by the fuse. The temperature limiter is connected in parallel with the thermal insulation resistor in the circuit, and the temperature can be controlled by the temperature limiter. When the temperature reaches a preset threshold, the circuit can be automatically disconnected or the power of the heating element can be adjusted to keep the ambient temperature within the required range. At the same time, the temperature can be kept within the required range. The temperature resistor can keep the temperature of the electric heating plate warm. When the temperature reaches the set value, the resistance value will increase sharply, thereby limiting the current passing through the element, thereby achieving the effect of heat preservation and energy saving. The electric heating plate is connected in series to the circuit, and the temperature sensor is connected in parallel with the electric heating plate. The temperature of the electric heating plate is monitored by the temperature sensor. One end of the comparator is connected to the constant temperature heating circuit, and the other end is connected to the temperature sensor. The voltage signal output by the temperature sensor can be compared with a preset threshold voltage signal through the comparator. When the ambient temperature is lower than the threshold, the comparator outputs a low-level signal to ensure that the electric heating plate is at a constant temperature of the threshold.

[0122] The telescopic and guiding device 3 is installed on the inner wall of the expansion and heating and smoothing device 2, and the rotation of the rotating and heating air guide device 4 can be limited and guided by the telescopic and guiding device 3. At the same time, the expansion and heating and smoothing device 2 can be smoothly expanded by the telescopic and guiding device 3. The telescopic and guiding device 3 includes: a guide component 31, a first L-shaped guide plate 311, a first guide groove 312, a limiting groove 313, a first tooth groove 314, a telescopic component 32, a second L-shaped guide plate 321, a T-shaped convex plate 322, a second guide groove 323, a limiting block 324 and a second tooth groove 325, and the guide component 31, which The guide assembly 31 is installed at the upper end of the inner surface of the second extension arm 23, and the guide assembly 31 is set to a plurality of groups, and the rotation of the rotating and heating air guide device 4 can be limited and guided by the guide assembly 31, the first L-shaped guide plate 311 is installed at the upper end of the inner surface of the second extension arm 23, the first guide groove 312 is arranged on one side of the upper end of the inner wall of the first L-shaped guide plate 311, and the rotation of the rotating and heating air guide device 4 can be limited and guided by the first guide groove 312, the limiting groove 313 is arranged on the other side of the upper end of the inner wall of the first L-shaped guide plate 311, and the top of the telescopic assembly 32 is slidably connected to the limiting groove 313. The first tooth groove 314 is arranged at the inner wall side end of the first L-shaped guide plate 311. The telescopic component 32 has two ends slidably connected to the inside of the two groups of guide components 31, and the telescopic component 32 is telescopically movable inside the two groups of guide components 31. Through the telescopic movement of the telescopic component 32, the expansion and heating smoothing device 2 can be smoothly expanded. The second L-shaped guide plate 321 is slidably connected to the inside of the first L-shaped guide plate 311. The T-shaped protrusion 322 is arranged on the top of the second L-shaped guide plate 321. One end, and make the T-shaped convex plate 322 slidably connected to the inside of the first guide groove 312, the second guide groove 323, which is arranged at the bottom of the T-shaped convex plate 322, and the telescopic movement of the telescopic assembly 32 can be limited and guided through the second guide groove 323, the limit block 324, which is arranged on both sides of the other end of the top of the second L-shaped guide plate 321, and make the limit block 324 slidably connected to the inside of the limit groove 313, and through the cooperation of the limit block 324 and the limit groove 313, the telescopic movement of the second L-shaped guide plate 321 can be limited and guided, the second tooth groove 325, which is arranged on the side end of the inner wall of the second L-shaped guide plate 321.

[0123] The rotating and heating air guide device 4 is slidably connected to the inside of the telescopic and guiding device 3 and is arranged at the inner center of the expansion and heating smoothing device 2. The rotating and heating air guide device 4 can realize the rotational blowing heating of the polyimide film under the limiting guidance of the telescopic and guiding device 3, and the polyimide film can be blown and heated sequentially from the inside to the outside by driving the rotating and heating air guide device 4. At the same time, the rotating and heating air guide device 4 can be folded and unfolded under the expansion of the expansion and heating smoothing device 2. The rotating and heating air guide device 4 includes: an outer limiting component 41, a first shaft column 411, a first folding rod 412, a second shaft column 413, a second folding rod 414, a rotating component 42, and a rotating drive motor 4. 21, a rotating rod 422, a rotating gear 423, a follower rotating rod 424, an outward expansion component 43, a third shaft column 431, a fourth shaft column 432, a third folding rod 433, a first swing drive motor 434, a second swing drive motor 435 and a heating and blowing plate 44, a peripheral limiting component 41, which is arranged between a plurality of groups of second extension arms 23, and the folding and outward expansion activities can be realized through the peripheral limiting component 41, a first shaft column 411, which is arranged in two groups, and the two groups of first shaft columns 411 are rotatably connected to the first folding rod 412 through a universal shaft, and each two groups of first shaft columns 411 are arranged as one item, and the first folding rod 412 is installed between the two groups of first shaft columns 411, and the middle part of the first folding rod 412 is rotatably connected through a rotating shaft , and the folding drive of the peripheral limiting assembly 41 can be realized through the first folding rod 412, the second shaft column 413, which is rotatably connected between the tops of the two first shaft columns 411, and the second shaft column 413 is set as two groups, and each two groups of second shaft columns 413 are set as one item, the second folding rod 414 is rotatably connected between the two groups of second shaft columns 413 through a universal wheel, and the folding activity of the peripheral limiting assembly 41 can be realized through the cooperation of the first folding rod 412 and the second folding rod 414, the rotating assembly 42, its bottom is rotatably connected to the top of the peripheral limiting assembly 41, and the top is slidably connected to the inside of the telescopic and guiding device 3, and the driving end of the rotating assembly 42 is in contact with the inner wall side end of the telescopic and guiding device 3, and the rotating assembly 42 can drive The peripheral limiting component 41, the external expansion component 43 and the heating and blowing disc 44 are driven to rotate, and the rotation driving motor 421 is installed at the bottom of another group of the first shaft column 411, and the rotating rod 422 is rotatably connected to the top of another group of the first shaft column 411, and the bottom passes through the first shaft column 411 until the bottom is connected to the driving end of the rotation driving motor 421. At the same time, the top of the rotating rod 422 is slidably connected to the inside of the first guide groove 312 and the second guide groove 323. The rotating gear 423 is arranged at the upper end of the outer wall of the rotating rod 422, and the outer wall of the rotating gear 423 is meshed and connected with the first tooth groove 314 and the second tooth groove 325, and the rotating rod 422 and the rotating gear 423 can be driven to rotate by the driving of the rotation driving motor 421.The rotating gear 423 can drive the peripheral limit assembly 41 to rotate and drive, and the follower rotating rod 424 is rotatably connected to another group of tops of the other several first shaft columns 411, and the top of the follower rotating rod 424 is slidably connected to the inside of the first guide groove 312 and the second guide groove 323, so that the outer wall of the gear on the outer wall is meshed and connected with the first tooth groove 314 and the second tooth groove 325, so that the rotation drive of the peripheral limit assembly 41 can be realized through the cooperation of the rotating rod 422 and the rotating gear 423 and the follower rotating rod 424, and the expansion assembly 43 is rotatably connected to the top of the rotating assembly 42, and after the rotating assembly 42 is expanded to the maximum area, the expansion assembly 43 can be driven to expand outward, thereby bringing The movable heating blowing plate 44 blows and heats the polyimide film from the inside to the outside. The third shaft column 431 is rotatably connected to the top of the first shaft column 411, and the third shaft column 431 is set to two groups, and each two groups of the third shaft column 431 are set to one item, and the bottom of the third shaft column 431 is connected to the heating blowing plate 44, so that the heating blowing plate 44 moves with the movement of the third shaft column 431 to realize the outward expansion activity drive, and the fourth shaft column 432 is rotatably connected to the top of the third shaft column 431, and the fourth shaft column 432 is set to two groups, and each two groups of the fourth shaft column 432 are set to one item, and through the cooperation of the third shaft column 431, the fourth shaft column 432 and the third folding rod 433, a five-pointed star shape is presented. At the same time, through the third shaft column 4 31. The cooperation between the fourth shaft column 432 and the third folding rod 433 can realize the expansion activity of the five-pointed star. The third folding rod 433 is rotatably connected between the two groups of third shaft columns 431 and the two groups of fourth shaft columns 432 through a universal shaft. The first swing drive motor 434 is installed on the top of the fourth shaft column 432 and is set on the connecting shaft between the fourth shaft column 432 and the third shaft column 431. The output end of the first swing drive motor 434 passes through the inner wall of the fourth shaft column 432 connected to the third shaft column 431, so that the third shaft column 431 can be driven to rotate by the drive of the first swing drive motor 434. The second swing drive motor 435 is installed on the top of another fourth shaft column 432 and is set on another fourth shaft column 432. The output end of the second swing drive motor 435 is connected to the inner wall of another fourth shaft column 432, so that the fourth shaft column 432 can be driven to rotate by the drive of the second swing drive motor 435. At the same time, the first swing drive motor 434 rotates in the opposite direction to the second swing drive motor 435, and can drive the third shaft column 431, the fourth shaft column 432 and the third folding rod 433 to expand. The heating blow plate 44 is installed at the bottom of the external expansion component 43, and the top of the heating blow plate 44 is connected to an external heating fan. At the same time, a constant temperature heating circuit is connected inside the heating blow plate 44, and the polyimide film can be blown and heated from the inside to the outside through the heating blow plate 44.At the same time, the polyimide film is blown in a rotating manner to ensure that all areas of the polyimide film from the inside to the outside can be heated by the blowing. The heating blowing disk 44 is connected to the electric heating disk 242 in the constant temperature heating circuit in a similar manner. The difference is that the constant temperature heating circuit is connected to the temperature sensor in the heating blowing disk 44 to monitor the temperature of the hot air blown out.

[0124] During specific use, those skilled in the art start the constant temperature heating circuit to start the preheating work of the heating and blowing disc 44 and the electric heating disc 242, so that the heating and blowing disc 44 and the electric heating disc 242 reach the preset threshold required for preheating, and put the polyimide film into the feed port 123 of the blocking shell 122, start the transmission drive motor 125, so that the polyimide film is rolled by the inner wall of the blocking shell 122 and the transmission roller 126, and is discharged from the discharge port 124 to the surface of the operating table 11, and at this time, the electric heating disc 24 is started by starting the telescopic rod 133. 2 contacts the inner area of ​​the surface of the polyimide film, and starts the hydraulic rod 213, the drive motor 227 and the adjustment drive motor 241, so that the first expansion arm 221 and the second expansion arm 23 perform expansion activities, thereby driving the electric heating plate 242 to move from the inner area of ​​the surface of the polyimide film to the outer area of ​​the surface of the polyimide film, first preheating the surface of the polyimide film, and at the same time, stretching and stretching the preheated polyimide film, and timely turning off the heating of the electric heating plate 242, while at this time the inner area of ​​the second expansion arm 23 The telescopic and guiding device 3 changes from a contracted structure to an unfolded structure and unfolds to the maximum area, and the heating and blowing plate 44 is lifted from a low position to a high position under the folding deformation of the first folding rod 412, the second folding rod 414 and the third folding rod 433, and the peripheral limit assembly 41 is expanded to the maximum position, and the rotating drive motor 421 is started to drive the rotating rod 422 and the rotating gear 423 to rotate inside the first L-shaped guide plate 311 and the second L-shaped guide plate 321, and contact the first tooth groove 314 and the second tooth groove 325, so that the rotating gear 423 drives the outer The surrounding limiting component 41, the outward expansion component 43 and the heating and blowing disk 44 rotate, and at the same time, the first swing drive motor 434 and the second swing drive motor 435 are started, driving the third shaft column 431 and the fourth shaft column 432 to rotate, forcing the outward expansion component 43 to deform, so that the outward expansion component 43 is transformed from a five-pointed star shape to a circle, and drives the heating and blowing disk 44 to move from the inside to the outside and rotate, so that the heating and blowing disk 44 performs a secondary preheating of the surface of the polyimide film from the inside to the outside in a rotational manner, so that the polyimide film is fully preheated.

[0125] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A polyimide film heat treatment device, characterized in that: include: A transmission and support device (1) is placed on the ground, and the polyimide film can be pressed and shaped by the transmission and support device (1), and the polyimide film can be transmitted to the surface; An expansion and heating and smoothing device (2) is installed at the upper end of the transmission and support device (1), and the bottom of the expansion and heating and smoothing device (2) is in contact with the surface of the polyimide film. By driving the expansion and heating and smoothing device (2), the surface of the polyimide film can be heated while being movable and limited; The telescopic and guiding device (3) is installed on the inner wall of the expansion and heating and smoothing device (2), and the rotation of the rotating and heating air guiding device (4) can be limited and guided by the telescopic and guiding device (3). At the same time, the expansion and heating and smoothing device (2) can be smoothly expanded by the telescopic and guiding device (3); The rotating and heating air guide device (4) is slidably connected to the inside of the telescopic and guiding device (3) and is arranged at the inner center of the expansion and heating smoothing device (2). The rotating and heating air guide device (4) can achieve rotational blowing heating of the polyimide film under the limiting guidance of the telescopic and guiding device (3). The rotating and heating air guide device (4) can be driven to sequentially blow and heat the polyimide film from the inside to the outside. At the same time, the rotating and heating air guide device (4) can be folded and unfolded under the expansion of the expansion and heating smoothing device (2); The transmission and support device (1) comprises a support assembly (13), and the support assembly (13) comprises a telescopic rod (133); The expansion and heating smoothing device (2) comprises: An extension drive assembly (21), the top of which is connected to the bottom of the telescopic rod (133); A first expansion component (22), one end of which is rotatably connected to the output end of the expansion drive component (21), and a middle end of which is rotatably connected to the bottom of the expansion drive component (21), and can drive the first expansion component (22) to perform expansion activities through the drive of the expansion drive component (21); A second expansion arm (23) is rotatably connected to the output end of the first expansion component (22), and can drive the second expansion arm (23) to rotate through the drive of the first expansion component (22); The preheating assembly (24) is rotatably connected to the bottom of the second extension arm (23), and through the cooperation between the first extension assembly (22) and the second extension arm (23), a plurality of groups of preheating assemblies (24) can vertically contact the polyimide film, and simultaneously expand and press the polyimide film from the inside toward the outside while preheating the polyimide film.

2. A polyimide film heat treatment device according to claim 1, characterized in that: The transmission and support device (1) comprises: An operating table (11) is placed on the ground, and the surface of the operating table (11) is capable of placing a polyimide film; A transmission component (12) is installed at the right end of the operating table (11), and the polyimide film can be pressed and shaped by the transmission component (12), and the polyimide film can be transmitted to the surface of the operating table (11); A support assembly (13) is installed at the left end of the surface of the operating table (11), and the expansion and heating smoothing device (2) can be connected through the support assembly (13).

3. A polyimide film heat treatment device according to claim 2, characterized in that: The transmission component (12) comprises: Brackets (121) are mounted on the front and rear ends of the right side of the surface of the operating table (11), and the brackets (121) are arranged in two groups; A blocking shell (122) disposed between the two sets of brackets (121); A feed inlet (123) is arranged at the top of the blocking shell (122), and a polyimide film can be placed into the interior of the blocking shell (122) through the feed inlet (123); A discharge port (124) is arranged at the bottom of the blocking shell (122), and the polyimide film can be discharged to the surface of the operating table (11) through the discharge port (124); A transmission drive motor (125) disposed on a rear end surface of the rear end bracket (121); A transmission roller (126) is rotatably connected between the two groups of brackets (121), and the transmission roller (126) is arranged inside the blocking shell (122). At the same time, the rear port of the transmission roller (126) is connected to the output end of the transmission drive motor (125), and the transmission roller (126) is driven by the transmission drive motor (125) to rotate inside the blocking shell (122), and the transmission roller (126) cooperates with the blocking shell (122), so as to press and shape the polyimide film, and discharge the polyimide film onto the surface of the operating table (11); The support assembly (13) comprises: A column (131) mounted on the left end of the surface of the operating table (11); A support frame (132) mounted on the upper end of the outer wall of the column (131); The telescopic rod (133) is installed around the bottom of the support frame (132), and the other end of the telescopic rod (133) is connected to the top of the expansion and heating and smoothing device (2), and the expansion and heating and smoothing device (2) can be driven to rise and fall through the telescopic rod (133).

4. A polyimide film heat treatment device according to claim 1, characterized in that: The extended drive component (21) comprises: The top of the mounting plate (211) is in contact with the bottom of the telescopic rod (133) on all sides, and the mounting plate (211) can be driven to move up and down by the telescopic rod (133); A shaft seat (212) is arranged around the bottom of the mounting plate (211) and allows the interior of the shaft seat (212) to be rotatably connected to the middle end of the first extension component (22); A hydraulic rod (213) is mounted at the top center of the mounting plate (211), and the output end of the hydraulic rod (213) passes through the mounting plate (211); A driving shaft (214), one end of which is rotatably connected to the periphery of the outer wall of the output end of the hydraulic rod (213), and the other end of which is rotatably connected to the inner port of the first expansion component (22), and can be driven by the hydraulic rod (213) to drive the driving shaft (214) to rotate, thereby causing the driving shaft (214) to drive the first expansion component (22) to rotate; The first expansion component (22) comprises: A first expansion arm (221), the inner end of which is rotatably connected to the other end of the driving shaft (214), and the middle end of which is rotatably connected to the inside of the shaft seat (212), and the first expansion arm (221) can be driven to rotate by the rotation of the driving shaft (214); A built-in groove (222) disposed on the top of the first extension arm (221); A movable gear (223) is rotatably connected to the inner lower end of the built-in groove (222), and the rotating end of the movable gear (223) is connected to the top of the second extension arm (23), and the rotation of the movable gear (223) can drive the second extension arm (23) to rotate; A follower gear (224) is rotatably connected to the inner middle position of the built-in groove (222), and the outer wall of the follower gear (224) is meshed and connected with the movable gear (223); A bevel gear (225) is arranged on one side of the follower gear (224), and the bevel gear (225) and the follower gear (224) are located on the same rotating rod; A first steering gear (226) is rotatably connected to the inner upper end of the built-in groove (222), and the outer wall of the first steering gear (226) is meshedly connected to the outer wall of the bevel gear (225); A driving motor (227) mounted on one side of the inner wall of the built-in groove (222); A second steering gear (228) is connected to the output end of the driving motor (227), and the outer wall of the second steering gear (228) is meshedly connected with the outer wall of the first steering gear (226). The second steering gear (228) can be driven by the driving motor (227) to rotate, thereby causing the second steering gear (228) to drive the first steering gear (226), the bevel gear (225), the follower gear (224) and the movable gear (223) to rotate; The preheating component (24) comprises: An adjustment drive motor (241) is mounted on one side of the lower end of the outer wall of the second extension arm (23); The electric heating plate (242) is rotatably connected to the bottom of the second extension arm (23), and the rotating end of the electric heating plate (242) is connected to the output end of the regulating drive motor (241). By adjusting the rotation of the regulating drive motor (241), the position of the electric heating plate (242) can be adjusted so that the electric heating plate (242) is always parallel to the operating table (11).

5. A polyimide film heat treatment device according to claim 4, characterized in that: The electric heating plate (242) is connected to a constant temperature heating circuit, and the constant temperature heating circuit can enable the electric heating plate (242) to always maintain a constant temperature; The constant temperature heating circuit is connected with a power supply, a fuse, a temperature limiter, a thermal insulation resistor, a comparator, a temperature sensor and an electric heating plate, and the fuse is connected in series with the power supply, and the circuit can be protected by the fuse. The temperature limiter is connected in parallel with the thermal insulation resistor in the circuit, and the temperature can be controlled by the temperature limiter. When the temperature reaches a preset threshold, the circuit can be automatically disconnected or the power of the heating element can be adjusted to keep the ambient temperature within a desired range. At the same time, the electric heating plate can be kept warm by the thermal insulation resistor. When the temperature reaches a set value, the resistance value will increase sharply, thereby limiting the current passing through the element, thereby achieving the effect of heat preservation and energy saving. The electric heating plate is connected in series with the circuit, and the temperature sensor is connected in parallel with the electric heating plate. The temperature of the electric heating plate is monitored by the temperature sensor. One end of the comparator is connected to the constant temperature heating circuit, and the other end is connected to the temperature sensor. The voltage signal output by the temperature sensor can be compared with a preset threshold voltage signal by the comparator. When the ambient temperature is lower than the threshold, the comparator outputs a low-level signal to ensure that the electric heating plate is at a constant temperature of the threshold.

6. A polyimide film heat treatment device according to claim 1, characterized in that: The telescopic and guiding device (3) comprises: A guide assembly (31) mounted on the upper end of the inner surface of the second extension arm (23), wherein the guide assemblies (31) are arranged in a plurality of groups, and the rotation of the rotating and heating air guide device (4) can be limited and guided by the guide assemblies (31); The telescopic component (32) has two ends slidably connected inside the two groups of guide components (31), and the telescopic component (32) is telescopically movable inside the two groups of guide components (31). Through the telescopic movement of the telescopic component (32), the expansion and heating smoothing device (2) can smoothly perform expansion movement.

7. A polyimide film heat treatment device according to claim 6, characterized in that: The guide assembly (31) comprises: A first L-shaped guide plate (311) mounted on the upper end of the inner surface of the second extension arm (23); A first guide groove (312) is provided on one side of the upper end of the inner wall of the first L-shaped guide plate (311), and the first guide groove (312) can limit and guide the rotational movement of the rotating and heating air guide device (4); A limiting groove (313) is arranged on the other side of the upper end of the inner wall of the first L-shaped guide plate (311), and enables the top of the telescopic component (32) to be slidably connected inside the limiting groove (313), and the telescopic movement of the telescopic component (32) can be limited and guided through the limiting groove (313); A first tooth groove (314) provided at a side end of an inner wall of the first L-shaped guide plate (311); The telescopic assembly (32) comprises: A second L-shaped guide plate (321) slidably connected to the inside of the first L-shaped guide plate (311); A T-shaped protruding plate (322) is arranged at one end of the top of the second L-shaped guide plate (321), and the T-shaped protruding plate (322) is slidably connected to the inside of the first guide groove (312); A second guide groove (323) is provided at the bottom of the T-shaped convex plate (322), and the telescopic movement of the telescopic assembly (32) can be limited and guided by the second guide groove (323); A limit block (324) is arranged on both sides of the other end of the top of the second L-shaped guide plate (321), and the limit block (324) is slidably connected to the inside of the limit groove (313), and through the cooperation between the limit block (324) and the limit groove (313), the telescopic movement of the second L-shaped guide plate (321) can be limited and guided; The second tooth groove (325) is arranged at the side end of the inner wall of the second L-shaped guide plate (321).

8. A polyimide film heat treatment device according to claim 1, characterized in that: The rotating and heating air guiding device (4) comprises: A peripheral limiting assembly (41) is disposed between the plurality of groups of second expansion arms (23), and the peripheral limiting assembly (41) is capable of realizing folding and outward expansion activities; The bottom of the rotating assembly (42) is rotatably connected to the top of the peripheral limiting assembly (41), and the top is slidably connected to the inside of the telescopic and guiding device (3), so that the driving end of the rotating assembly (42) contacts the inner wall side end of the telescopic and guiding device (3), and the peripheral limiting assembly (41), the external expansion assembly (43) and the heating and blowing disk (44) can be driven to rotate through the rotating assembly (42); An expansion component (43) is rotatably connected to the top of the rotating component (42), and after the rotating component (42) expands outward to the maximum area, the expansion component (43) is driven to expand outward, thereby driving the heating blowing disk (44) to blow and heat the polyimide film from the inside to the outside; The heating blowing plate (44) is installed at the bottom of the external expansion component (43), and the top of the heating blowing plate (44) is connected to an external heating fan. At the same time, a constant temperature heating circuit is connected inside the heating blowing plate (44). The heating blowing plate (44) can be used to blow and heat the polyimide film from the inside to the outside, and the polyimide film can be rotated and blown at the same time, ensuring that each area of ​​the polyimide film from the inside to the outside can be blown and heated.

9. A polyimide film heat treatment device according to claim 8, characterized in that: The peripheral limiting component (41) comprises: The first shaft columns (411) are arranged in two groups, and the two groups of first shaft columns (411) are rotatably connected to the first folding rod (412) via a universal shaft, and each two groups of first shaft columns (411) are arranged as one item; A first folding rod (412) is installed between the two sets of first shaft columns (411), and the middle part of the first folding rod (412) is rotatably connected via a rotating shaft, and the folding drive of the peripheral limiting assembly (41) can be realized through the first folding rod (412); A second shaft column (413) is rotatably connected between the tops of the two first shaft columns (411), and the second shaft columns (413) are arranged in two groups, and each two groups of second shaft columns (413) are arranged as one item; A second folding rod (414) is rotatably connected between the two sets of second shaft columns (413) via a universal wheel, and the folding activity of the peripheral limiting assembly (41) can be achieved through the cooperation of the first folding rod (412) and the second folding rod (414); The rotating assembly (42) comprises: A rotation driving motor (421) mounted on another bottom portion of the first shaft column (411); A rotating rod (422) is rotatably connected to the other top of the first shaft column (411), and the bottom thereof passes through the first shaft column (411) until the bottom is connected to the driving end of the rotating driving motor (421), and at the same time, the top of the rotating rod (422) is slidably connected to the inside of the first guide groove (312) and the second guide groove (323); A rotating gear (423) is arranged at the upper end of the outer wall of the rotating rod (422), and the outer wall of the rotating gear (423) is meshed and connected with the first tooth groove (314) and the second tooth groove (325), and can drive the rotating rod (422) and the rotating gear (423) to rotate through the drive of the rotating drive motor (421), so that the rotating gear (423) can drive the peripheral limiting assembly (41) to rotate; A follower rotating rod (424) is rotatably connected to another group of tops of the other plurality of first shaft columns (411), and the top of the follower rotating rod (424) is slidably connected to the inside of the first guide groove (312) and the second guide groove (323), so that the outer wall of the gear on the outer wall meshes and connects the first tooth groove (314) and the second tooth groove (325), so that the rotation rod (422) and the rotating gear (423) cooperate with the follower rotating rod (424) to realize the rotation drive of the peripheral limit assembly (41); The external expansion component (43) comprises: The third shaft column (431) is rotatably connected to the top of a first shaft column (411), and the third shaft column (431) is arranged in two groups, each two groups of third shaft columns (431) are arranged in one group, and the bottom of the third shaft column (431) is connected to the heating and blowing disk (44), so that the heating and blowing disk (44) moves with the movement of the third shaft column (431), thereby realizing the outward expansion movement drive; The fourth shaft column (432) is rotatably connected to the top of the third shaft column (431), and the fourth shaft column (432) is arranged in two groups, each two groups of the fourth shaft column (432) are arranged as one item, and through the cooperation of the third shaft column (431), the fourth shaft column (432) and the third folding rod (433), a five-pointed star shape is presented, and at the same time, through the cooperation of the third shaft column (431), the fourth shaft column (432) and the third folding rod (433), the expansion activity of the five-pointed star can be realized; A third folding rod (433) is rotatably connected between the two sets of third shaft columns (431) and the two sets of fourth shaft columns (432) via a universal shaft; A first swing drive motor (434) is mounted on the top of the fourth shaft column (432) and is arranged on a connecting shaft between the fourth shaft column (432) and the third shaft column (431), and an output end of the first swing drive motor (434) passes through the fourth shaft column (432) and is connected to the inner wall of the third shaft column (431), so that the third shaft column (431) can be driven to rotate by the drive of the first swing drive motor (434); The second swing drive motor (435) is mounted on the top of the other fourth shaft column (432) and is arranged on the connecting shaft between the other fourth shaft column (432) and the other third shaft column (431), and the output end of the second swing drive motor (435) is connected to the inner wall of the other fourth shaft column (432), so that the fourth shaft column (432) can be driven to rotate by the second swing drive motor (435), and at the same time, the first swing drive motor (434) and the second swing drive motor (435) rotate in opposite directions, and can drive the third shaft column (431), the fourth shaft column (432) and the third folding rod (433) to perform expansion activities.

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