Production device of multi-layer polymer film

Abstract

The utility model discloses a production device of a multilayer polymer film. The production device comprises a feeding structure, a flattening roller I, a roller I, a coating groove I, a guide roller I, a roller II, a coating groove II, a guide roller II, a flattening roller II and a wind-up roller which are arranged in sequence, one roller of the roller I is immersed in the coating groove I, and one roller of the roller II is immersed in the coating groove II; the feeding structure conveys a film, the film is conveyed into the rollers after being fixed and flattened through the flattening roller, the film is coated through the rollers and the coating grooves, the film is dried through hot air after being coated, the film is conveyed into the next pair of rollers and the coating grooves through the guide roller to be coated again, and then the film is conveyed into the winding roller through the guide roller and the flattening roller after being dried through hot air. According to the multi-layer co-extrusion device, a coating is uniform when a film is produced, compared with traditional multi-layer co-extrusion equipment, the cost is greatly reduced, the multi-layer co-extrusion device can be used for multi-layer production before or after the film is rolled, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of polymer film production equipment, and relates to a production device for multi-layer polymer films. Background Technique

[0002] As single-layer films can gradually no longer meet the application requirements of people for films with multiple functional properties, film lamination has become an important way to address this demand. Currently, there are mainly two ways to prepare composite films: One way is to apply glue between film layers and then press two or more layers of films together. Due to differences in film layer materials, different types of glue are often required, and even corresponding thermal curing or light curing devices need to be designed separately, which not only increases the cost of the device, but also the thickness of the multi-layer film formed is often large. In many cases, such as in the scenario of film capacitors, etc., due to the excessive film thickness, the overall performance of the film and the packaging density of the device will decrease significantly, so it is difficult to be actually applied. Another way is to obtain composite films by using the method of multi-layer co-extrusion. This preparation method often requires the configuration of a multi-layer co-extrusion machine, and the equipment price is much higher than that of ordinary extrusion film-forming devices. Moreover, the composite film needs to be further stretched and formed after multi-layer co-extrusion. During this process, due to the differences in the mechanical properties of the materials of each layer of the multi-layer film, large internal stresses in the material properties will be caused, and even interlayer cracking will occur, resulting in the deterioration of the performance of the composite film or even delamination, affecting the use. Content of the Utility Model

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a production device for multi-layer polymer films, solve the production device and quality control problems existing in the continuous production or sectional production of multi-layer films, thereby improving production efficiency, improving product quality, reducing production costs, and reducing equipment investment.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions to achieve:

[0005] A production device for a multi-layer polymer film, comprising a feeding structure, a flattening roller I, a rolling roller I, a coating tank I, a guiding roller I, a rolling roller II, a coating tank II, a guiding roller II, a flattening roller II, and a winding roller arranged in sequence; one roller of the rolling roller I is immersed in the coating tank I, and one roller of the rolling roller II is immersed in the coating tank II; a hot air blower I is provided between the rolling roller I and the guiding roller I, and a hot air blower II is provided between the rolling roller II and the guiding roller II; the feeding structure at the starting end can convey the film to the flattening roller I, the flattening roller I can fix and flatten the film, the rolling roller I can dip the coating and apply it to one side of the film to form a coating under the condition that the film is flattened, the hot air blower I can quickly dry the coating, the guiding roller I can adjust the conveying direction of the film and then send it to the rolling roller II, the rolling roller II can dip the coating and apply it to one side or the other side of the film to form a coating under the condition that the film is flattened, the guiding roller II can adjust the conveying direction of the film and then send it to the flattening roller II, the flattening roller II can fix and flatten the film, and finally the multi-layer film is wound by the winding roller.

[0006] The present utility model further includes the following technical features:

[0007] Specifically, the feeding structure is a feeding roller; both the flattening roller I and the flattening roller II include an upper roller wheel and a lower roller wheel arranged up and down; the rolling roller I includes an upper roller and a lower roller arranged up and down, and the rolling roller II includes a left roller and a right roller arranged left and right.

[0008] Specifically, the coating tank I is arranged below the lower roller of the rolling roller I, and the bottom of the lower roller is immersed in the coating tank I; the hot air blower I is located below the film.

[0009] Specifically, the coating tank II is arranged below the right roller or the left roller of the rolling roller II, and the bottom of the right roller or the left roller is immersed in the coating tank II; the hot air blower II and the coating tank II are located on the same side of the film.

[0010] Specifically, the feeding structure, the flattening roller I, the rolling roller I, and the guiding roller I are all parallel to each other and are arranged in sequence along a horizontal straight line direction perpendicular to the axial direction of the guiding roller I.

[0011] Specifically, the guiding roller I, the rolling roller II, and the guiding roller II are all parallel to each other and are arranged in sequence along a vertical straight line direction perpendicular to the axial direction of the guiding roller I.

[0012] Specifically, the guiding roller II, the flattening roller II, and the winding roller are all parallel to each other and are arranged in sequence along a horizontal straight line direction perpendicular to the axial direction of the guiding roller II.

[0013] Specifically, openings are provided on both sides of the coating tank I and the coating tank II to supplement the coating.

[0014] Compared with the prior art, the present utility model has the following technical effects:

[0015] The present utility model forms a composite film through coating and drying methods, and can conveniently control the film thickness by controlling the coating concentration and other means, realizing the preparation of the composite film with little influence on the film thickness.

[0016] This device does not involve the re-stretching of the film, avoiding the potential risks of cracking and delamination existing in processing equipment such as multi-layer co-extrusion.

[0017] The device of the present utility model can be used for the composite processing of continuous films and can also be used for the processing and production of distributed composite films. The device does not involve high-cost and complex-structured components, with low device cost and small equipment investment.

[0018] The device of the present utility model has strong material applicability and good film parameter controllability, and can be used for the production and processing of various types of films. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the production device for the multi-layer polymer film of the present utility model.

[0020] The meanings of each label in the figure are as follows:

[0021] 1. Feeding structure, 2. Flattening roller I, 3. Rolling roller I, 4. Coating tank I, 5. Hot air blower I, 6. Guide roller I, 7. Rolling roller II, 8. Coating tank II, 9 - Guide roller II, 10 - Hot air blower II, 11 - Flattening roller II, 12. Rewinding roller. Detailed Embodiments

[0022] The following are specific embodiments of the present utility model. It should be noted that the present utility model is not limited to the following specific embodiments, and all equivalent transformations made on the basis of the technical solution of this application fall within the protection scope of the present utility model.

[0023] Example 1:

[0024] As Figure 1As shown in the figure, this embodiment provides a production device for multi-layer polymer films, which includes a feeding structure 1, a flattening roller I 2, a rolling roller I 3, a coating tank I 4, a guiding roller I 6, a rolling roller II 7, a coating tank II 8, a guiding roller II 9, a flattening roller II 11, and a winding roller 12 arranged in sequence; one roller of the rolling roller I 3 is immersed in the coating tank I 4, and one roller of the rolling roller II 7 is immersed in the coating tank II 8; a hot air blower I 5 is provided between the rolling roller I 3 and the guiding roller I 6, and a hot air blower II 10 is provided between the rolling roller II 7 and the guiding roller II 9; the feeding structure 1 at the starting end can convey the film to the flattening roller I 2, the flattening roller I 2 can fix and flatten the film, the rolling roller I 3 can dip the coating on the film surface to form a coating on one side of the film under the condition that the film is flattened, the hot air blower I 5 can quickly dry the coating, the guiding roller I 6 can adjust the film conveying direction and then send it to the rolling roller II 7, the rolling roller II 7 can dip the coating on the film surface to form a coating on one side or the other side of the film under the condition that the film is flattened, the guiding roller II 9 can adjust the film conveying direction and then send it to the flattening roller II 11, the flattening roller II 11 can fix and flatten the film, and finally the winding roller 12 winds the multi-layer film.

[0025] Specifically, the feeding structure 1 is located at the starting end of the device and is used to feed the film material. The feeding structure 1 is a feeding roller or a conveying device. The feeding roller is for the reprocessing of the wound film, and the conveying device is a production device for continuous multi-layer compounding after film formation of this device; the flattening roller is used to fix and flatten the film; the rolling roller is used for coating the film surface under the condition that the film is flattened. The corresponding rolling roller dips the coating to form a coating on one side of the film, and the rolling roller smears the coating on the film during rotation. There are openings on both sides of the coating tank to replenish the coating in time; the film coming out of the rolling roller is sent into the adjacent hot air blower for hot air drying, which is used for quickly drying the coating; the guiding roller is used to adjust the film conveying direction to the subsequent structure of the device; the winding roller 12 is used for winding the multi-layer film.

[0026] The feeding structure 1 is a feeding roller; both the flattening roller I 2 and the flattening roller II 11 include an upper roller and a lower roller arranged up and down; the rolling roller I 3 includes an upper roller and a lower roller arranged up and down, and the rolling roller II 7 includes a left roller and a right roller arranged left and right.

[0027] The coating tank I 4 is arranged below the lower roller of the rolling roller I 3, and the bottom of the lower roller is immersed in the coating tank I 4; the hot air blower I 5 is located below the film.

[0028] The coating tank II 8 is arranged below the right roller or the left roller of the rolling roller II 7, and the bottom of the right roller or the left roller is immersed in the coating tank II 8; the hot air blower II 10 and the coating tank II 8 are located on the same side of the film.

[0029] The feeding structure 1, the flattening roller I 2, the rolling roller I 3, and the guiding roller I 6 are all parallel to each other and are arranged in sequence along a horizontal straight line direction perpendicular to the axial direction of the guiding roller I 6.

[0030] The guiding roller I6, the rolling roller II7, and the guiding roller II9 are all parallel to each other and are arranged in sequence along the vertical linear direction perpendicular to the axial direction of the guiding roller I6.

[0031] The guiding roller II9, the flattening roller II11, and the winding roller 12 are all parallel to each other and are arranged in sequence along the horizontal linear direction perpendicular to the axial direction of the guiding roller II9.

[0032] Openings are provided on both sides of the coating tank I4 and the coating tank II8 to supplement the coating material.

[0033] Working principle: During use, the thin film of the feeding structure is fixed and unfolded by the flattening roller and then passes through the rolling roller for coating one side of the thin film. The thin film coated with the coating layer is then sent to the hot air blower for sufficient drying, and then sent to another set of rolling rollers through the guiding roller. The rolling roller dips the coating material onto one side or the other side of the thin film, and then is sent to the hot air blower for sufficient drying again. After being fixed and flattened by the flattening roller, it is sent to the winding roller for automatic winding.

[0034] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0035] In addition, it should be noted that, in the case of no contradiction, the various specific technical features described in the above specific embodiments can be combined in any appropriate manner. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0036] In addition, any combination can be made between various different embodiments of the present invention as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. An apparatus for producing a multi-layer polymer film, characterized in that, It includes a feeding structure (1), a flattening roller I (2), a rolling roller I (3), a coating tank I (4), a guiding roller I (6), a rolling roller II (7), a coating tank II (8), a guiding roller II (9), a flattening roller II (11), and a winding roller (12) arranged in sequence; one roller of the rolling roller I (3) is immersed in the coating tank I (4), and one roller of the rolling roller II (7) is immersed in the coating tank II (8); a hot air blower I (5) is provided between the rolling roller I (3) and the guiding roller I (6), and a hot air blower II (10) is provided between the rolling roller II (7) and the guiding roller II (9); the feeding structure (1) at the starting end can convey the film to the flattening roller I (2), the flattening roller I (2) can fix and flatten the film, the rolling roller I (3) can dip the coating and apply it to one side of the film to form a coating when the film is flattened, the hot air blower I (5) can quickly dry the coating, the guiding roller I (6) can adjust the conveying direction of the film and then send it to the rolling roller II (7), the rolling roller II (7) can dip the coating and apply it to one side or the other side of the film to form a coating when the film is flattened, the guiding roller II (9) can adjust the conveying direction of the film and then send it to the flattening roller II (11), the flattening roller II (11) can fix and flatten the film, and finally the winding roller (12) winds up the multi-layer film.

2. The production apparatus of the multi-layer polymer film according to claim 1, characterized in that, The feeding structure (1) is a feeding roller; both the flattening roller I (2) and the flattening roller II (11) include an upper roller and a lower roller arranged up and down; the rolling roller I (3) includes an upper roller and a lower roller arranged up and down, and the rolling roller II (7) includes a left roller and a right roller arranged left and right.

3. The production apparatus of the multi-layer polymer film according to claim 2, characterized in that, The coating tank I (4) is arranged below the lower roller of the rolling roller I (3), and the bottom of the lower roller is immersed in the coating tank I (4); The hot air blower I (5) is located below the film.

4. The production apparatus for the multi-layer polymer film according to claim 2, characterized in that, The coating tank II (8) is arranged below the right roller or the left roller of the rolling roller II (7), and the bottom of the right roller or the bottom of the left roller is immersed in the coating tank II (8); the hot air blower II (10) and the coating tank II (8) are located on the same side of the film.

5. The production apparatus of the multilayer polymer film according to claim 1, characterized in that The feeding structure (1), the flattening roller I (2), the rolling roller I (3), and the guiding roller I (6) are all parallel to each other and are arranged in sequence along a horizontal straight line direction perpendicular to the axial direction of the guiding roller I (6).

6. The production device of the multi-layer polymer film according to claim 1, characterized in that, The guiding roller I (6), the rolling roller II (7), and the guiding roller II (9) are all parallel to each other and are arranged in sequence along a vertical straight line direction perpendicular to the axial direction of the guiding roller I (6).

7. The production device of the multi-layer polymer film according to claim 1, characterized in that The guiding roller II (9), the flattening roller II (11), and the winding roller (12) are all parallel to each other and are arranged in sequence along a horizontal straight line direction perpendicular to the axial direction of the guiding roller II (9).

8. The production apparatus of the multi-layer polymer film according to claim 1, characterized in that, Openings are provided on both sides of the coating tank I (4) and the coating tank II (8) to supplement the coating.

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