A heating roller for polyimide film production

Abstract

The utility model belongs to the polyimide film production equipment technical field, concretely is a kind of heating roller for polyimide film production, including base, two vertical boards symmetrically arranged are fixedly connected on base upper end surface, two heating roller assemblies are installed between two vertical boards, two heating roller assemblies are symmetrically arranged, one side of one vertical board is equipped with two limiting components. The utility model controls wedge to displace by worm and worm wheel transmission knob, realizes the quick disassembly and stable fixing of heating roller body, it is easy to operate and need not use tool additionally, improve the stability of the utility model, to ensure processing quality, and reduce maintenance cost, limiting rod and fixed block cooperation setting are used simultaneously, the position of fixed block can be locked when disassembling, prevent the mechanical damage caused by accidental rotation, give consideration to the safety and efficiency of operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of polyimide film production equipment, specifically a heating roller for polyimide film production. Background Technology

[0002] Polyimide film, as a high-performance insulating material, is widely used in aerospace, electronic packaging and flexible display fields. Polyimide film is prepared by casting polyamic acid solution into a film and then performing high-temperature imidization treatment. In this process, the heating roller, as a key temperature control component, needs to continuously provide uniform heat to ensure the orderly transformation of the film molecular chains.

[0003] A search revealed a patent, CN211440782U, for a heating roller used in polypropylene film production. The roller includes a frame, with a drive motor fixedly connected to the left side of the frame. The output end of the drive motor passes through the frame and extends into its inner cavity, where a square mounting end is fixedly connected. A sleeve rod is fitted into the inner cavity of the square mounting end, and a clamping device is embedded in the square mounting end. The bottom end of the clamping device is inserted into a slot at the top of the sleeve rod. A square rod is fixedly connected to the right side of the inner wall of the frame. The beneficial effect of this invention is that through the coordinated use of the square rod, sliding sleeve, slider, insert block, strong spring, and roller body, when disassembling the roller body, moving the insert block to the right causes the sliding sleeve to move to the right. After movement, the insert block disengages from the square groove, allowing the roller body to be removed from the square mounting end. This process is very simple and convenient, facilitating maintenance.

[0004] The above-mentioned device uses a combination of square rod, sliding sleeve, slider, inner block, strong spring and pressure roller body to remove the pressure roller body from the square mounting end. The operation is very simple and convenient, and it is easy to maintain.

[0005] However, the pressure roller body is fixed by the interlocking structure of the inner block and the square groove. The contact surface between the inner block and the square groove relies only on the friction force generated by the elastic deformation of the spring for mechanical engagement. The stability is poor, and it is easy to cause deformation failure due to material fatigue under long-term high temperature environment. In addition, the pressure roller body is prone to micro-displacement or vibration when rotating or the load changes, which will cause vibration or positioning deviation and affect the processing quality of the film. Summary of the Invention

[0006] The purpose of this invention is to provide a heating roller for polyimide film production to solve the problems mentioned in the background art.

[0007] This utility model provides the following technical solution: a heating roller for polyimide film production, including a base, two symmetrically arranged vertical plates fixedly connected to the upper end face of the base, two heating roller assemblies installed between the two vertical plates, the two heating roller assemblies being symmetrically arranged, and two limiting components installed on one side of one of the vertical plates.

[0008] As a preferred embodiment of the above technical solution, the heating roller assembly includes two fixing blocks, which are rotatably connected to one side of two upright plates and are symmetrically arranged. Each of the two fixing blocks has an installation groove on one side, and the two installation grooves are symmetrically arranged. An installation block is slidably connected in each of the two installation grooves. The heating roller body is rotatably connected between the two installation blocks, and a fixing component is installed in each of the two fixing blocks.

[0009] As a preferred embodiment of the above technical solution, the fixing component includes a sliding cavity and a rotating cavity, both of which are formed within the fixing block. A bidirectional screw is rotatably connected to the lower part of the inner wall of the sliding cavity. Two symmetrically arranged sliding plates are slidably connected within the sliding cavity. The bidirectional screw passes through the two sliding plates, and the two sliding plates are externally threadedly connected to the bidirectional screw. A wedge block is fixedly connected to one side of each of the two sliding plates. The two wedge blocks pass through one side of the inner wall of the sliding cavity and are slidably disposed within the mounting groove.

[0010] As a preferred embodiment of the above technical solution, a worm gear and a worm are rotatably connected to the inner wall of the rotating cavity. The worm gear and the worm mesh with each other. The output end of the worm gear passes through one side of the inner wall of the rotating cavity and is fixedly connected to one end of a bidirectional screw. A knob is rotatably connected to the lower end of the fixed block, and the output end of the knob is fixedly connected to the lower end of the worm.

[0011] As a preferred embodiment of the above technical solution, the limiting component includes a support frame and a limiting hole. The support frame is fixedly connected to one side of the upright plate, and the limiting hole is opened on one of the fixing blocks on the side away from the heating roller body. A limiting rod is slidably sleeved at the center of the support frame. The limiting rod passes through the upright plate, and the limiting rod and the limiting hole are engaged.

[0012] As a preferred embodiment of the above technical solution, a first limiting block is fixedly connected to the end of the limiting rod away from the fixed block, and a second limiting block is fixedly sleeved on the outside of the limiting rod, and the second limiting block is slidably disposed inside the support frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. When the heating roller body needs to be disassembled, turn the knob. Under the transmission action of the worm and worm wheel, the wedge block moves into the sliding cavity. The wedge block releases its pressure on the mounting block, and the heating roller body can be removed. When installing the heating roller body, align the mounting block on the heating roller body with the mounting groove and insert it. Then turn the knob in the opposite direction. The inclined surface of the wedge block will cooperate with the inner wall of the mounting groove to press and fix the mounting block. This achieves quick disassembly and stable installation of the heating roller body, improves the stability of the operation of this utility model, and ensures the processing quality. Moreover, fixing and disassembly can be completed by operating the knob without the need for additional tools, making operation convenient and reducing maintenance costs.

[0015] 2. When it is necessary to disassemble the heating roller body, operate the fixing block so that the groove of the mounting slot is facing upwards, and then push the limiting rod so that the limiting rod is inserted into the limiting hole. This will limit the fixing block and prevent it from rotating accidentally, thereby ensuring the stability of the heating roller body during disassembly, simplifying the operation process and reducing the risk of mechanical damage caused by the rotation of the fixing block. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the disassembled structure of the heating roller assembly of this utility model;

[0018] Figure 3 This is a cross-sectional view of the fixing block of this utility model;

[0019] Figure 4 This is a schematic diagram of the limiting component of this utility model.

[0020] In the diagram: 1. Base; 2. Vertical plate; 3. Heating roller assembly; 301. Fixing block; 302. Mounting groove; 303. Mounting block; 304. Heating roller body; 305. Sliding cavity; 306. Rotating cavity; 307. Bidirectional screw; 308. Sliding plate; 309. Wedge block; 310. Worm gear; 311. Worm; 312. Knob; 4. Limiting assembly; 401. Support frame; 402. Limiting hole; 403. Limiting rod; 404. First limiting block; 405. Second limiting block. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figures 1-4This utility model provides a technical solution: a heating roller for polyimide film production, including a base 1 for support, two symmetrically arranged vertical plates 2 are fixedly connected to the upper end face of the base 1, and two heating roller assemblies 3 for preheating and softening the film are installed between the two vertical plates 2. The two heating roller assemblies 3 are symmetrically arranged, and two limiting components 4 for preventing the rotation of the two heating roller assemblies 3 are installed on one side of one of the vertical plates 2.

[0023] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, the heating roller assembly 3 includes a fixing block 301. There are two fixing blocks 301, which are rotatably connected to one side of the two upright plates 2 respectively. The two fixing blocks 301 are symmetrically arranged. Each side of the two fixing blocks 301 is provided with an installation groove 302. The two installation grooves 302 are symmetrically arranged. An installation block 303 is slidably connected in each of the two installation grooves 302. The heating roller body 304 is rotatably connected between the two installation blocks 303. A fixing component for fixing the installation block 303 is installed in each of the two fixing blocks 301.

[0024] The fixing assembly includes a sliding cavity 305 and a rotating cavity 306. Both the sliding cavity 305 and the rotating cavity 306 are opened in the fixing block 301. A bidirectional screw 307 is rotatably connected to the lower part of the inner wall of the sliding cavity 305. Two symmetrically arranged sliding plates 308 are slidably connected in the sliding cavity 305. The bidirectional screw 307 passes through the two sliding plates 308, and the two sliding plates 308 and the bidirectional screw 307 are externally threaded. A wedge block 309 is fixedly connected to one side of the two sliding plates 308. The two wedge blocks 309 pass through one side of the inner wall of the sliding cavity 305, and the two wedge blocks 309 are slidably disposed in the mounting groove 302.

[0025] A worm gear 310 and a worm 311 are rotatably connected to the inner wall of the rotating cavity 306. The worm gear 310 and the worm 311 mesh with each other. The output end of the worm gear 310 passes through one side of the inner wall of the rotating cavity 306 and is fixedly connected to one end of the bidirectional screw 307. A knob 312 is rotatably connected to the lower end of the fixing block 301. The output end of the knob 312 is fixedly connected to the lower end of the worm 311.

[0026] Furthermore, when it is necessary to disassemble the heating roller body 304, rotate the knob 312. The knob 312 drives the worm gear 311 to rotate, which in turn drives the worm wheel 310 to rotate. The bidirectional screw 307 located in the sliding cavity 305 rotates, and the two sliding plates 308 located in the sliding cavity 305 move away from each other, causing the wedge block 309 to move into the sliding cavity 305. The wedge block 309 releases the pressure and fixation on the upper end of the mounting block 303, at which point the heating roller body 304 can be removed. When installing the heating roller body 304, align the mounting block 303 on the heating roller body 304 with the mounting groove 302 and insert it, then reverse the direction. Rotating knob 312 brings the wedge blocks 309 closer together. The mechanical self-locking of worm gear 310 and worm 311 prevents the bidirectional screw 307 from rotating, allowing the inclined surface of the wedge blocks 309 to stably apply downward pressure to the mounting block 303. At the same time, the inner wall of the mounting groove 302 presses and fixes the mounting block 303, realizing the quick disassembly and stable installation of the heating roller body 304. This improves the stability of the operation of this utility model, thereby ensuring the processing quality. Moreover, fixing and disassembly can be completed by operating knob 312 without the need for additional tools, making operation convenient and reducing maintenance costs.

[0027] It is worth noting that the heating roller body 304 is an existing technology. It uses electric heating to precisely control the temperature and utilizes the synergistic effect of heat conduction and radiation to make the molecular chains of the polyimide film located between the two heating roller bodies 304 arrange in an orderly manner during the imidization reaction. At the same time, the speed difference between the two heating roller bodies 304 achieves the stretching of the film, which directionally strengthens the molecular structure and ultimately obtains a high-strength and highly uniform film product. This will not be elaborated further here.

[0028] As one implementation method in this embodiment, please refer to Figure 1 and Figure 4 The limiting component 4 includes a support frame 401 and a limiting hole 402. The support frame 401 is fixedly connected to one side of the upright plate 2. The limiting hole 402 is opened on one side of one of the fixing blocks 301 away from the heating roller body 304. A limiting rod 403 is slidably sleeved at the center of the support frame 401. The limiting rod 403 passes through the upright plate 2, and the limiting rod 403 and the limiting hole 402 are engaged.

[0029] Furthermore, when it is necessary to disassemble the heating roller body 304, rotate the operating fixing block 301 so that the limiting hole 402 is aligned with the limiting rod 403. At this time, the groove of the mounting slot 302 is facing upward. Then push the limiting rod 403 so that the limiting rod 403 is inserted into the limiting hole 402, which can limit the fixing block 301 and prevent the fixing block 301 from rotating accidentally. This ensures the stability of the heating roller body 304 during disassembly, simplifies the operation process, and reduces the risk of mechanical damage caused by the rotation of the fixing block 301.

[0030] As one implementation method in this embodiment, please refer to Figure 4 The end of the limiting rod 403 away from the fixed block 301 is fixedly connected to the first limiting block 404, and the limiting rod 403 is fixedly sleeved with the second limiting block 405. The second limiting block 405 is slidably disposed inside the support frame 401.

[0031] Furthermore, the first limiting block 404 and the second limiting block 405 can limit the limiting rod 403 to prevent it from sliding out of the support frame 401 and falling. At the same time, the first limiting block 404 facilitates pushing and pulling the limiting rod 403, improving the portability of the device.

[0032] Working principle: When the heating roller body 304 needs to be disassembled, turn the knob 312. The knob 312 drives the worm gear 311 to rotate, which in turn drives the worm wheel 310 to rotate. The bidirectional screw 307 located in the sliding cavity 305 rotates, and the two sliding plates 308 located in the sliding cavity 305 move away from each other, causing the wedge block 309 to move into the sliding cavity 305. The wedge block 309 releases its pressure on the upper end of the mounting block 303, and the heating roller body 304 can then be removed. When installing the heating roller body 304, align the mounting block 303 on the heating roller body 304 with the mounting groove 302 and insert it. Then, turn the knob 312 in the opposite direction to bring the wedge blocks 309 closer together. The inclined surface of the wedge block 309, in conjunction with the inner wall of the mounting groove 302, presses the mounting block 303 against it. The fixing mechanism enables quick disassembly and stable installation of the heating roller body 304, improving the operational stability of the invention and ensuring processing quality. Fixing and disassembly can be completed via the operating knob 312 without the need for additional tools, simplifying operation and reducing maintenance costs. When disassembling the heating roller body 304, rotating the operating fixing block 301 aligns the limiting hole 402 with the limiting rod 403, ensuring the groove opening of the mounting slot 302 faces upwards. Pushing the limiting rod 403 inserts it into the limiting hole 402, thus limiting the fixing block 301 and preventing accidental rotation. This ensures the stability of the heating roller body 304 during disassembly, simplifies the operation process, and reduces the risk of mechanical damage caused by the rotation of the fixing block 301.

[0033] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A heating roller for producing polyimide film, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to two symmetrically arranged vertical plates (2), and two heating roller assemblies (3) are installed between the two vertical plates (2). The two heating roller assemblies (3) are symmetrically arranged, and two limiting components (4) are installed on one side of one of the vertical plates (2).

2. The heating roller for polyimide film production according to claim 1, characterized in that: The heating roller assembly (3) includes a fixing block (301), and there are two fixing blocks (301). The two fixing blocks (301) are rotatably connected to one side of the two upright plates (2), and the two fixing blocks (301) are symmetrically arranged. Each of the two fixing blocks (301) has an installation groove (302) on one side. The two installation grooves (302) are symmetrically arranged. An installation block (303) is slidably connected in each of the two installation grooves (302). The heating roller body (304) is rotatably connected between the two installation blocks (303). A fixing component is installed in each of the two fixing blocks (301).

3. The heating roller for polyimide film production according to claim 2, characterized in that: The fixing assembly includes a sliding cavity (305) and a rotating cavity (306). Both the sliding cavity (305) and the rotating cavity (306) are opened in the fixing block (301). A bidirectional screw (307) is rotatably connected to the lower part of the inner wall of the sliding cavity (305). Two symmetrically arranged sliding plates (308) are slidably connected in the sliding cavity (305). The bidirectional screw (307) passes through the two sliding plates (308), and the two sliding plates (308) and the bidirectional screw (307) are externally threaded. A wedge block (309) is fixedly connected to one side of the two sliding plates (308). The two wedge blocks (309) pass through one side of the inner wall of the sliding cavity (305), and the two wedge blocks (309) are slidably arranged in the mounting groove (302).

4. The heating roller for polyimide film production according to claim 3, characterized in that: The inner wall of the rotating cavity (306) is rotatably connected to a worm gear (310) and a worm (311). The worm gear (310) and the worm (311) mesh with each other. The output end of the worm gear (310) passes through one side of the inner wall of the rotating cavity (306), and the output end of the worm gear (310) is fixedly connected to one end of a bidirectional screw (307). The lower end of the fixing block (301) is rotatably connected to a knob (312), and the output end of the knob (312) is fixedly connected to the lower end of the worm (311).

5. A heating roller for polyimide film production according to claim 2, characterized in that: The limiting component (4) includes a support frame (401) and a limiting hole (402). The support frame (401) is fixedly connected to one side of the upright plate (2). The limiting hole (402) is opened on one side of one of the fixing blocks (301) away from the heating roller body (304). A limiting rod (403) is slidably sleeved at the center of the support frame (401). The limiting rod (403) penetrates the upright plate (2), and the limiting rod (403) and the limiting hole (402) are engaged.

6. A heating roller for polyimide film production according to claim 5, characterized in that: The end of the limiting rod (403) away from the fixed block (301) is fixedly connected to the first limiting block (404), and the limiting rod (403) is fixedly sleeved with the second limiting block (405), which is slidably disposed inside the support frame (401).

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