Polyimide film single-sided and double-sided coating switching coating device

Abstract

The utility model belongs to the polyimide film equipment technical field, concretely relates to a kind of polyimide film single-sided and double-sided coating switching coating brush device.The utility model includes: two fixed supports of relative arrangement, the side of fixed support is equipped with the through-hole of position correspondence;Conveying roller, be located between two fixed supports, and below fixed support;Two hangers, opposite and located the outside of two fixed supports, and above conveying roller;Glue groove, two ends of glue groove correspond with two hangers, the distance between glue groove and hanger is adjustable;Spray pipe, spray pipe inserts through-hole, and at least one row of spray hole is equipped in spray pipe.The utility model is used to solve the technical problem that polyimide film continuous production equipment needs to use multiple stations to carry out single-sided or double-sided coating epoxy resin glue to polyimide film in prior art, leading to the increase of station of continuous production equipment, thus leading to the overall operation time of equipment to be longer, reduce the technical problem of production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of polyimide film equipment, specifically relating to a polyimide film single- or double-sided coating switching brushing device. Background Technology

[0002] Polyimide films have a wide range of applications and possess excellent electrical insulation, mechanical properties, chemical stability, aging resistance, radiation resistance, and low dielectric loss.

[0003] To further enhance the various properties of polyimide films, various coatings are applied to their surface. For example, epoxy resin is coated onto the surface of the polyimide film to form a protective layer, thereby improving its mechanical properties, light-shielding performance, and adaptability to various application scenarios.

[0004] In existing continuous production equipment for polyimide films, applying epoxy resin to one or both sides of the polyimide film requires different workstations. This leads to an increase in the number of workstations in the continuous production equipment, a longer travel time for the polyimide film, a longer overall equipment operating time, and a reduction in production efficiency. Utility Model Content

[0005] This invention provides a single / double-sided coating switching device for polyimide films, which solves the technical problem that existing continuous production equipment for polyimide films requires multiple stations to coat the polyimide film with epoxy resin on one or both sides, resulting in an increase in the number of stations in the continuous production equipment, which in turn leads to a longer overall equipment operating time and reduced production efficiency.

[0006] This utility model includes: two fixed brackets arranged opposite to each other, and through holes with corresponding positions are opened on the side of the fixed brackets;

[0007] A conveying roller is disposed between the two fixed supports and below the fixed supports;

[0008] Two hangers are positioned opposite each other on the outside of the two fixed supports and above the conveyor rollers;

[0009] A glue tank, the two ends of which are connected to the two hanging brackets respectively, and the distance between the glue tank and the hanging brackets is adjustable;

[0010] A spray pipe is inserted into the through hole, and the spray pipe has at least one row of spray holes.

[0011] This invention enables the switching function of applying epoxy resin adhesive to one or multiple sides by moving the position of the adhesive tank and using a spray pipe.

[0012] Furthermore: threaded holes are provided at both ends of the bracket, and threaded connecting posts are provided in the threaded holes;

[0013] The top surface of the glue tank has flanges at both ends, and the flanges have connecting holes at the positions of the threaded connecting posts. The bottom of the threaded connecting posts has a baffle. The beneficial effect of this step is that the height of the glue tank can be adjusted by rotating the threaded connecting posts.

[0014] Furthermore: the bottom surface of the glue tank is provided with a glue discharge pipe, and the glue discharge pipe is provided with a shut-off valve. The beneficial effect of this step is that the glue discharge pipe can discharge epoxy resin material and prevent it from overflowing from the glue tank.

[0015] Furthermore, the side of the through hole is provided with a set bolt. The beneficial effect of this step is that the spray angle of the spray pipe can be controlled by the set bolt.

[0016] Furthermore: when the spray pipe has two or more rows of spray holes, the included angle between the two outermost rows of spray holes is 90°~150°. The beneficial effect of this step is to increase the spray area.

[0017] Furthermore, the surface of the conveying roller is provided with an annular groove. The beneficial effect of this step is that the annular groove restricts the position of the polyimide film on the conveying roller, preventing it from deviating due to the influence of the epoxy resin.

[0018] The beneficial effects of this utility model are:

[0019] This application demonstrates that when using a spray pipe to spray the polyimide film alone, it is a single-sided coating. In this case, the glue tank is located below the conveyor roller and serves only as a collection tank to collect excess glue dripping from the conveyor roller. However, when double-sided coating is required, the spray pipe can be omitted, and the glue tank can be raised directly until the glue in the tank covers the conveyor roller. This allows for direct coating of both sides of the polyimide film. Through the above structure, it is possible to switch between single-sided and double-sided epoxy resin coating in one workstation, which can save equipment workstations, reduce costs, and improve efficiency. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of a polyimide film single / double-sided coating switching brushing device provided by this utility model. Figure 1 ;

[0022] Figure 2 A schematic diagram of the structure of a polyimide film single / double-sided coating switching brushing device provided by this utility model. Figure 2 .

[0023] Figure label:

[0024] 1-Fixed bracket; 2-Conveyor roller; 3-Hanger; 4-Glue tank; 5-Spray pipe; 6-Threaded connecting column; 7-Polyimide film;

[0025] 41 - Glue drain hose. Detailed Implementation

[0026] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0027] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0028] Implementation of this application, for example Figure 1 and Figure 2 As shown, the polyimide film single-sided and double-sided coating switching brushing device provided by this utility model can switch between single-sided coating and double-sided coating at the same work station.

[0029] This application includes: two fixed brackets 1 arranged opposite to each other, wherein the fixed brackets 1 have through holes on their sides corresponding to the positions, and the fixed brackets 1 are part of the equipment frame and are generally used to fix the conveyor rollers 2;

[0030] The conveying roller 2 is located between the two fixed supports 1 and below the fixed supports 1. The polyimide film 7 passes around the conveying roller 2 and is continuously conveyed on the equipment by the conveying roller 2.

[0031] Two hangers 3 are positioned opposite each other on the outside of the two fixed supports 1 and above the conveying roller 2. The hangers 3 are generally fixedly connected to the outside of the fixed supports 1 by welding, or they are movably connected to the fixed supports 1 by bolts or other parts.

[0032] The glue tank 4 has two ends connected to the two hanging brackets 3 respectively, and the distance between the glue tank 4 and the hanging brackets 3 is adjustable;

[0033] Spray pipe 5, the spray pipe 5 is inserted into the through hole, and the spray pipe 5 has at least one row of spray holes.

[0034] This application has two application scenarios. When applying epoxy resin adhesive to one side, a spray pipe 5 is used. One end of the spray pipe 5 is closed, and the other end is equipped with internal threads, external threads, or quick connectors that can be connected to the adhesive supply line. The adhesive supply line feeds the epoxy resin adhesive into the spray pipe 5, and then sprays it onto the surface of the polyimide film 7 through the spray holes, completing the single-sided coating. The spray pipe 5 is located inside the through hole of the fixed bracket 1, which is equivalent to being inside the polyimide film 7 with the conveyor roller 2 as the steering axis. For better spraying effect, the spraying direction of the spray pipe 5 is towards the polyimide film 7 fed into the conveyor roller 2. In this way, the epoxy resin adhesive on the polyimide film 7 can be applied more evenly under the action of the conveyor roller 2, avoiding areas that are not coated. The adhesive tank 4 can also collect excess adhesive, preventing adhesive from falling to the ground and polluting the environment.

[0035] When applying epoxy resin adhesive to both sides, there is no need to use the spray pipe 5. Simply move the glue tank 4 upward until the epoxy resin in the glue tank 4 covers the conveyor roller 2. The conveyor roller 2, along with the polyimide film 7 on it, can pass through the epoxy resin adhesive, and the polyimide film 7 can be coated with adhesive on both sides.

[0036] Therefore, it is possible to switch between single-sided or double-sided adhesive application at a single workstation. Furthermore, it should be noted that this workstation only handles adhesive application and does not require control over the thickness or uniformity of the adhesive coating; these functions are handled by equipment in subsequent workstations.

[0037] Based on the above technical solution, there are various ways to adjust the position between the glue tank 4 and the bracket 3. For example, a piston cylinder can be set between the bracket 3 and the glue tank 4, or a traction rope and roller can be used. However, in this application, a threaded connection adjustment mechanism is preferred, that is, threaded holes are opened at both ends of the bracket 3, and a threaded connection post 6 is provided in the threaded hole.

[0038] The top surface of the glue tank 4 has flanges at both ends, and the flanges have connecting holes at the positions corresponding to the threaded connecting post 6. The bottom of the threaded connecting post has a baffle. The baffle, flanges, and connecting holes serve to movably connect the threaded connecting post 6 and the glue tank 4. The threaded connecting post 6 can rotate freely within the flanges. The height of the glue tank 4 can be adjusted by rotating the threaded connecting post 6. In addition, the above structure does not have to worry about affecting reliability after being contaminated with epoxy resin.

[0039] Based on the above technical solution, the bottom surface of the glue tank 4 is provided with a glue discharge pipe 41, and the glue discharge pipe 41 is provided with a shut-off valve. The glue discharge pipe 41 is generally used when coating the glue on one side. When the spray pipe 5 sprays, excess glue will be generated. After the glue drips into the glue tank 4, it will continue to accumulate. In order to prevent the glue from overflowing from the glue tank 4, the glue discharge pipe needs to discharge the epoxy resin glue in time. When coating the glue on both sides, the shut-off valve on the glue discharge pipe 41 needs to be closed to ensure the glue content in the glue tank 4.

[0040] Based on the above technical solution, a set bolt is provided on the side of the through hole, and the spray angle of the spray pipe 5 can be easily controlled and adjusted by tightening the set bolt.

[0041] Based on the above technical solution, when the spray pipe 5 has two or more rows of spray holes, the included angle of the two outermost rows of spray holes is 90°~150°, which can increase the spray area. It should be noted that the center line of the included angle is preferably perpendicular to the polyimide film.

[0042] Based on the above technical solution, the surface of the conveying roller 2 is provided with an annular groove. The width of the annular groove is slightly larger than the width of the polyimide film 7, and the depth of the annular groove is 2 to 5 times the thickness of the polyimide film 7. The annular groove restricts the position of the polyimide film 7 on the conveying roller 2, preventing it from deviating under the influence of the epoxy resin. In addition, when coating on one side only, the annular groove can also prevent the epoxy resin from flowing to both ends of the conveying roller 2.

[0043] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. In the description of this specification, references to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the 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 or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A polyimide film single / double-sided coating switching brushing device, characterized in that, include: Two fixed brackets are arranged opposite each other, and the sides of the fixed brackets are provided with corresponding through holes; A conveying roller is disposed between the two fixed supports and below the fixed supports; Two hangers are positioned opposite each other on the outside of the two fixed supports and above the conveyor rollers; A glue tank, the two ends of which are connected to the two hanging brackets respectively, and the distance between the glue tank and the hanging brackets is adjustable; A spray pipe is inserted into the through hole, and the spray pipe has at least one row of spray holes.

2. The polyimide film single / double-sided coating switching brushing device according to claim 1, characterized in that, The bracket has threaded holes at both ends, and threaded connecting posts are provided in the threaded holes; The top surface of the glue tank has flanges at both ends, and the flanges have connecting holes at the positions corresponding to the threaded connecting posts. The bottom of the threaded connecting posts has baffles.

3. The polyimide film single / double-sided coating switching brushing device according to claim 1 or 2, characterized in that, The bottom surface of the glue tank is provided with a glue discharge pipe, and the glue discharge pipe is provided with a shut-off valve.

4. The polyimide film single / double-sided coating switching brushing device according to claim 1, characterized in that, The side of the through hole is provided with a set bolt.

5. The polyimide film single / double-sided coating switching brushing device according to claim 1, characterized in that, When the spray pipe has two or more rows of spray holes, the included angle between the two outermost rows of spray holes is 90° to 150°.

6. The polyimide film single / double-sided coating switching brushing device according to claim 1, characterized in that, The surface of the conveyor roller is provided with an annular groove.

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