A polyimide film coating roll

Abstract

This utility model provides a polyimide film coating roller, comprising: a roller body; roller shafts are mounted at both ends of the roller body, and mounting base one and mounting base two are respectively assembled on the roller body via the roller shafts. A scraping unit is mounted between mounting base one and mounting base two, and the scraping unit is fitted into the roller body; a splicing interface is provided on the roller body, and a splicing cylinder plate is mounted on the roller body through the splicing interface; the scraping unit includes a threaded rod, a guide block, a scraping liner, and a mounting ring. The threaded rod is mounted between mounting base one and mounting base two, and the guide block is threaded onto the threaded rod. A mounting ring is fixedly mounted on the top of the guide block, and a scraping liner is fixedly mounted on the inner wall of the mounting ring, and the scraping liner is frictionally fitted with the roller body. This utility model has a simple structure, making it easy for personnel to inspect and maintain the mounting structure inside the roller body through the splicing interface. It is convenient to operate and does not require frequent assembly and disassembly of the entire roller.

Description

Technical Field

[0001] This utility model relates to the field of polyimide film technology, and specifically to a polyimide film coating roller. Background Technology

[0002] Polyimide films, with their excellent high-temperature resistance, superior chemical stability, and good mechanical strength, have become an indispensable key material in fields such as microelectronics, flexible displays, and aerospace. Currently, the mainstream industrial process for producing high-performance polyimide films is the "coating-imidization" method. This process first involves uniformly coating a polyamic acid (PAA) solution onto the surface of a substrate (such as metal foil or release film) to form a wet film, which is then subjected to high-temperature dehydration and cyclization (imidization) to obtain the final polyimide film.

[0003] However, existing coating rollers have a significant technical defect in actual continuous production processes: after the coating operation is completed, a thin layer of PAA solution that has not been completely transferred is very likely to remain on the roller surface.

[0004] Currently, residual PAA solution is not being cleaned in a timely manner. During cleaning, due to the cylindrical shape of the coating rollers, thorough cleaning is often not possible. As the solvent in the PAA solution evaporates rapidly, the residue gradually solidifies on the roller surface, forming a polyamic acid or polyimide cured film. The presence of this cured film can cause uneven film thickness, streaks, or defects in the produced film. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a polyimide film coating roller, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A polyimide film coating roller includes: a roller body; roller shafts are installed at both ends of the roller body; mounting base one and mounting base two are respectively assembled on the roller body via the roller shafts; a scraping unit is installed between mounting base one and mounting base two, and the scraping unit is fitted into the roller body.

[0008] The roller body is provided with a splicing interface, and the splicing cylinder plate is installed on the roller body through the splicing interface;

[0009] The scraping unit includes a threaded rod, a guide block, a scraper liner, and a mounting ring. The threaded rod is installed between mounting base one and mounting base two. The guide block is threaded onto the threaded rod. The mounting ring is fixedly installed on the top of the guide block. The scraper liner is fixedly installed on the inner wall of the mounting ring and is frictionally fitted with the roller body.

[0010] Furthermore, both mounting base one and mounting base two are fixedly mounted on their bottoms, and the bases are provided with screw holes.

[0011] Furthermore, the splicing cylinder plate is provided with a splicing surface that fits the splicing interface, and a sealing gasket is fixed to the splicing surface.

[0012] Furthermore, a mating interface is provided on one side of the roller body, and a mating block that mates with the mating interface is fixed to one end of the splicing cylinder plate, and fastening bolts for installation are mounted on the mating block.

[0013] Furthermore, the scraping unit also includes a slide rod and a rocking element. The slide rod, which passes through the guide block, is connected and installed between mounting base one and mounting base two. The outer end of the threaded rod is connected and installed with the rocking element.

[0014] Furthermore, a heating component is fixedly installed inside the roller body. The heating component includes an electric heating wire and a heat transfer rod. The heat transfer rod is fixedly installed inside the roller body, and an electric heating wire is installed around the heat transfer rod.

[0015] This invention provides a polyimide film coating roller. Compared with the prior art, it has the following advantages:

[0016] 1. By disassembling the splicing cylinder plate from the roller body, it is convenient for personnel to inspect and maintain the installation structure inside the roller body through the splicing interface. The operation is convenient and does not require frequent assembly and disassembly of the entire roller.

[0017] 2. Through the cooperation between the scraping unit and the roller, the residual polyamic acid solution on the roller can be scraped off by moving the roller after the operation is completed. After scraping, it is convenient for personnel to clean the roller for subsequent processing operations. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0020] Figure 2 This shows a first schematic diagram of the assembly structure of the roller body and the spliced ​​cylinder plate of this utility model;

[0021] Figure 3 A schematic diagram of the internal structure of the roller body of this utility model is shown;

[0022] Figure 4 A schematic diagram of the splicing cylindrical plate structure of this utility model is shown;

[0023] Figure 5 A schematic diagram of the scraping unit structure of this utility model is shown;

[0024] Figure 6 This shows a second schematic diagram of the assembly structure of the roller body and the spliced ​​cylinder plate of this utility model;

[0025] As shown in the figure: 100, roller body; 101, splicing joint; 102, roller shaft; 103, mating joint;

[0026] 200. Splicing tube plate; 201. Sealing gasket; 202. Fastening bolt; 203. Butt joint block;

[0027] 300. Base;

[0028] 400. Mounting base one;

[0029] 500. Scraping unit; 501. Threaded rod; 502. Slide rod; 503. Rocking component; 504. Guide block; 505. Scraper liner; 506. Mounting ring;

[0030] 600. Heating component; 601. Electric heating wire; 602. Heat transfer rod;

[0031] 700. Mounting base two. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] Example

[0034] To address the technical problems in the background art, the following polyimide film coating roller is provided:

[0035] Combination Figures 1-6As shown, this utility model provides a polyimide film coating roller, comprising: a roller body 100, with roller shafts 102 mounted at both ends of the roller body 100; mounting base 400 and mounting base 700 respectively mounted on the roller body 100 via the roller shafts 102; a scraping unit 500 is mounted between the mounting base 400 and the mounting base 700, and the scraping unit 500 is fitted into the roller body 100; the roller body 100 is installed by the interaction of the roller shafts 102 on the roller body 100 with the mounting bases 400 and 700; the scraping unit 500 and the roller body 100 cooperate to scrape off the residual polyamic acid solution on the roller body 100 after the operation is completed, and the unit can be cleaned by personnel after scraping for subsequent processing operations; the roller shafts 102 are provided with through holes communicating with the inside of the roller body 100 for easy line passing.

[0036] The roller body 100 is provided with a splicing interface 101, and a splicing cylinder plate 200 is installed on the roller body 100 through the splicing interface 101. The splicing cylinder plate 200 and the roller body 100 are assembled together. The splicing cylinder plate 200 is a component of the roller body 100. When the roller body has an operational abnormality, the personnel can disassemble the splicing cylinder plate 200 from the roller body 100, which makes it convenient for personnel to inspect and maintain the installation structure inside the roller body 100 through the splicing interface 101. The operation is convenient and does not require frequent assembly and disassembly of the roller as a whole.

[0037] The scraping unit 500 includes a threaded rod 501, a guide block 504, a scraper liner 505, and a mounting ring 506. The threaded rod 501 is mated between mounting base 1 400 and mounting base 2 700. The guide block 504 is threaded onto the threaded rod 501. The mounting ring 506 is fixedly mounted on the top of the guide block 504, and the scraper liner 505 is fixedly mounted on the inner wall of the mounting ring 506, rubbing against the roller body 100. The threaded rod 501 drives the guide block 504, causing the threaded rod 501 to drive the mounting ring 506 through the guide block 504. Thus, the mounting ring 506 synchronously moves the scraper liner 505 along the surface of the roller body 100, and the scraper liner 505 removes residual liquid from the surface of the roller body 100.

[0038] In this embodiment, both mounting base 400 and mounting base 700 are fixedly mounted with base 300 at their bottoms, and the base 300 is provided with screw holes.

[0039] The base 300 enables the mounting brackets one and two to be placed and installed. Then, personnel can use the parts and screw holes to fix the base 300 in place.

[0040] In this embodiment, the splicing tube plate 200 is provided with a splicing surface that fits with the splicing interface 101, and a sealing gasket 201 is fixedly attached to the splicing surface.

[0041] When the splicing cylinder plate 200 and the splicing interface 101 are spliced ​​together, they fit tightly and closely. After they are fitted together, the splicing cylinder plate 200 can achieve a sealing effect between them through the sealing gasket 201, preventing liquid from entering the drum during operation.

[0042] In this embodiment, a mating interface 103 is provided on one side of the roller body 100, and a mating block 203 that mates with the mating interface 103 is fixedly connected to one end of the splicing cylinder plate 200, and a fastening bolt 202 for installation is mounted on the mating block 203.

[0043] By connecting and cooperating the interface 103 and the docking block 203, the two can be tightly connected to complete the assembly of the roller body. After the interface 103 and the docking block 203 are connected, they can be installed and fastened by the fastening bolts 202.

[0044] In this embodiment, the scraping unit 500 also includes a slide rod 502 and a rocking member 503. The slide rod 502, which passes through the guide block 504, is installed between the first mounting base 400 and the second mounting base 700. The rocking member 503 is installed at the outer end of the threaded rod 501.

[0045] The slide bar 502 cooperates with the threaded rod 501 to guide the guide block 504 to move linearly. When operating the threaded rod 501, the rocker 503 can drive the threaded rod 501 to rotate.

[0046] A heating element 600 is fixedly installed inside the roller body 100. The heating element 600 includes an electric heating wire 601 and a heat transfer rod 602. The heat transfer rod 602 is fixedly installed inside the roller body 100, and the electric heating wire 601 is mounted around the heat transfer rod 602.

[0047] Heating of the roller body 100 is achieved by heating component 600; during this process, heating is performed by heating electric heating wire 601 and heat transfer is performed in conjunction with heat transfer rod 602.

[0048] Working principle and usage process of this utility model:

[0049] In use:

[0050] In use, personnel can install and fix the base 300 by cooperating with the parts and screw holes, so that the roller can be installed and fixed. During the operation of the roller, the electric heating wire 601 is heated and heat is transferred in conjunction with the heat transfer rod 602.

[0051] During cleaning, the rocking component 503 drives the rotation of the threaded rod 501, which in turn drives the guide block 504. This causes the threaded rod 501 to drive the mounting ring 506 through the guide block 504. In this way, the mounting ring 506 can synchronously move the internal scraper liner 505 along the surface of the roller body 100, and the scraper liner 505 removes the residual liquid from the surface of the roller body 100.

[0052] During maintenance, personnel can disassemble the splicing cylinder plate 200 from the roller body 100. The mounting base 2 700 has a notch for the splicing cylinder plate 200 to be pulled out, which makes it easy for personnel to inspect and maintain the installation structure inside the roller body 100 through the splicing interface 101. The operation is convenient and does not require frequent assembly and disassembly of the entire roller.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A polyimide film coating roller, characterized in that, Includes a roller body (100): both ends of the roller body (100) are connected to roller shafts (102), and the roller body (100) is respectively equipped with mounting base one (400) and mounting base two (700) through the roller shafts (102). A scraping unit (500) is connected between the mounting base one (400) and the mounting base two (700), and the scraping unit (500) is fitted with the roller body (100). The roller body (100) is provided with a splicing interface (101), and the roller body (100) is connected to the splicing cylinder plate (200) through the splicing interface (101). The scraping unit (500) includes a threaded rod (501), a guide block (504), a scraper liner (505), and a mounting ring (506). The threaded rod (501) is installed between mounting base one (400) and mounting base two (700). The guide block (504) is threaded onto the threaded rod (501). The mounting ring (506) is fixedly installed on the top of the guide block (504). The scraper liner (505) is fixedly installed on the inner wall of the mounting ring (506). The scraper liner (505) is frictionally fitted with the roller body (100).

2. The polyimide film coating roller according to claim 1, characterized in that: Both mounting base 1 (400) and mounting base 2 (700) are fixedly mounted with base 300 at their bottoms, and the base 300 is provided with screw holes.

3. The polyimide film coating roller according to claim 1, characterized in that: The splicing tube plate (200) is provided with a splicing surface that fits with the splicing interface (101), and a sealing gasket (201) is fixedly connected to the splicing surface.

4. The polyimide film coating roller according to claim 1, characterized in that: The roller body (100) has a mating interface (103) on one side, and a mating block (203) that mates with the mating interface (103) is fixedly connected to one end of the splicing cylinder plate (200), and a fastening bolt (202) for installation is mounted on the mating block (203).

5. The polyimide film coating roller according to claim 1, characterized in that: The scraping unit (500) also includes a slide rod (502) and a rocker (503). The slide rod (502) that passes through the guide block (504) is installed between the first mounting base (400) and the second mounting base (700). The rocker (503) is installed at the outer end of the threaded rod (501).

6. The polyimide film coating roller according to claim 4, characterized in that: A heating element (600) is fixedly installed inside the roller body (100). The heating element (600) includes an electric heating wire (601) and a heat transfer rod (602). The heat transfer rod (602) is fixedly installed inside the roller body (100), and the electric heating wire (601) is installed around the heat transfer rod (602).

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