Membrane material preparation production line

Abstract

The utility model belongs to the technical field of membrane material preparation, and discloses a membrane material preparation production line which comprises a first feeding unit, a first coating unit, a first compounding unit, a second feeding unit, a second coating unit, a second compounding unit, a third feeding unit and a rolling unit, the first feeding unit, the first coating unit, the first compounding unit, the second coating unit, the second compounding unit and the winding unit are connected in series to form a conveying line body, the second feeding unit and the third feeding unit are connected to the conveying line body in parallel, and the first feeding unit is used for supplying a first film material; the second feeding unit and the third feeding unit can convey a second film material and a third film material to the conveying line body respectively. According to the film material preparation production line disclosed by the utility model, other film materials can be continuously compounded on the front surface and the back surface of the film material serving as the base material layer, so that a composite film formed by compounding three layers of film materials is prepared, the operation does not need to be circulated twice, and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film material preparation, in particular to a film material preparation production line. Background Art

[0002] Composite film products are often used in electronic products and their production processes, such as protective films applied to the glass panels of electronic products and anti-static films used in the production of electronic products. Some composite films are composed of three layers. For example, some blue films include a substrate layer and two release layers. The substrate layer is coated with a layer of adhesive on both sides, and the release layer is then laminated to both sides of the substrate layer using the adhesive.

[0003] The traditional film material preparation production line can only apply glue and composite film materials on one side of the film serving as the base material layer at a time. For a composite film that needs to be composited by three layers of film materials, the film material preparation production line composites a film material including two layers of film materials in the first operation. After being wound up, the film material returns to the upstream end of the film material preparation production line and is subjected to a second operation by the film material preparation production line to obtain a composite film composited by three layers of film materials. That is, the traditional film material preparation production line needs to cycle the operation twice to obtain a composite film composited by three layers of film materials, and the production efficiency is low. Utility Model Content

[0004] The purpose of the utility model is to provide a film material preparation production line to solve the problem that the traditional film material preparation production line needs to cycle twice to obtain a composite film composed of three layers of film materials, resulting in low production efficiency.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] Membrane material preparation production line, including:

[0007] a first feeding unit and a first coating unit, wherein the first feeding unit and the first coating unit are arranged in series, the first coating unit comprises a first gluing mechanism and a first drying mechanism which are arranged in sequence, the first gluing mechanism and the first drying mechanism being connected in series, the first feeding unit being capable of supplying a first film material to the first gluing mechanism, the first gluing mechanism being capable of coating a first adhesive layer on one side of the first film material, and the first drying mechanism being capable of drying the first adhesive layer;

[0008] a first compounding unit and a second feeding unit, wherein the first compounding unit is connected in series to the downstream side of the first drying mechanism, and the second feeding unit is arranged in parallel with the first feeding unit, the second feeding unit can supply a second film material to the first compounding unit, and the first compounding unit can bond the second film material to the side of the first film material coated with the first adhesive layer;

[0009] The second coating unit includes a second gluing mechanism and a second drying mechanism, the second gluing mechanism and the second drying mechanism being connected in series, the second gluing mechanism being connected in series to the downstream side of the first compounding unit and being capable of coating a second glue layer on the other side of the first film material, and the second drying mechanism being capable of drying the second glue layer;

[0010] a second compounding unit and a third feeding unit, wherein the second compounding unit is connected in series to the downstream side of the second drying mechanism, and the third feeding unit is arranged in parallel with the first feeding unit, the third feeding unit can supply a third film material to the second compounding unit, and the second compounding unit can adhere the third film material to the side of the first film material coated with the second adhesive layer; and

[0011] The winding unit is arranged at the downstream side of the second composite unit and is capable of winding the film material flowing out of the second composite unit.

[0012] Preferably, the first loading unit includes a first unwinding mechanism, a first cutting mechanism and a first traction mechanism arranged in sequence, the first unwinding mechanism can supply the first film material to the first cutting mechanism, the first cutting mechanism can cut the first film material, and the first traction mechanism can pull the first film material to the first gluing mechanism.

[0013] Preferably, the first loading unit further includes a first processing mechanism, which is arranged between the first cutting mechanism and the first traction mechanism, and the first processing mechanism can perform corona and / or dust removal on the first film material.

[0014] Preferably, the second loading unit includes a second unwinding mechanism, a second cutting mechanism and a second traction mechanism arranged in sequence, the second unwinding mechanism can supply the second film material to the second cutting mechanism, the second cutting mechanism can cut the second film material, and the second traction mechanism can pull the second film material to the first composite unit.

[0015] Preferably, the second loading unit further includes a first deviation-correcting mechanism, which is disposed between the second traction mechanism and the first composite unit and is capable of correcting the position of the second film material.

[0016] Preferably, the film material preparation production line further comprises a second processing mechanism, which is arranged between the first composite unit and the second coating unit and is capable of performing corona treatment and / or dust removal on the film material flowing out of the first composite unit.

[0017] Preferably, the third loading unit includes a third unwinding mechanism, a third cutting mechanism and a third processing mechanism arranged in sequence, the third unwinding mechanism can supply the third film material to the third cutting mechanism, the third cutting mechanism can cut the third film material, and the third processing mechanism can perform corona and / or dust removal on the third film material.

[0018] Preferably, the winding unit includes a material accumulator, a fourth traction mechanism, a fourth cutting mechanism, a fifth traction mechanism and a first winding mechanism arranged in sequence, the material accumulator can temporarily store the film material flowing out of the second composite unit, the fourth traction mechanism can pull the film material flowing out of the second composite unit to the fourth cutting mechanism, the fourth cutting mechanism can cut the film material flowing out of the second composite unit, and the fifth traction mechanism can pull the film material flowing out of the fourth cutting mechanism to the first winding mechanism.

[0019] Preferably, the winding unit further comprises a detection mechanism, and the detection mechanism is configured to detect the film material flowing out of the second composite unit.

[0020] Preferably, the winding unit also includes a sixth traction mechanism, a fifth cutting mechanism and a second winding mechanism arranged in sequence, the sixth traction mechanism and the accumulator are connected in parallel to the downstream side of the second composite unit, the sixth traction mechanism can pull the film material flowing out of the second composite unit to the fifth cutting mechanism, the fifth cutting mechanism can cut the film material flowing out of the second composite unit, and the second winding mechanism is arranged on the downstream side of the fifth cutting mechanism.

[0021] Beneficial effects of the utility model:

[0022] The membrane material preparation production line in the present invention can continuously compound other membrane materials on both sides of the membrane material serving as the substrate layer, thereby producing a composite film composed of three layers of membrane materials without the need for two cycles of operation, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of a membrane material preparation production line in an embodiment of the present utility model.

[0024] In the picture:

[0025] 1. First feeding unit; 11. First unwinding mechanism; 12. First cutting mechanism; 13. First traction mechanism; 14. First processing mechanism; 2. First coating unit; 21. First gluing mechanism; 22. First drying mechanism; 3. First compounding unit; 4. Second feeding unit; 41. Second unwinding mechanism; 42. Second cutting mechanism; 43. Second traction mechanism; 44. First deviation-correcting mechanism; 5. Second coating unit; 51. Second gluing mechanism; 52. Second drying mechanism; 6. Second compounding unit; 61. First traction module; 62. Second traction module; 63. Third deviation-correcting mechanism; 7. Third feeding unit Unit; 71, third unwinding mechanism; 72, third cutting mechanism; 73, third processing mechanism; 731, second dust collector; 732, second corona machine; 74, second correcting mechanism; 8, winding unit; 811, accumulator; 812, fourth traction mechanism; 813, fourth cutting mechanism; 814, fifth traction mechanism; 815, first winding mechanism; 816, trimming mechanism; 817, fourth correcting mechanism; 818, detection mechanism; 821, sixth traction mechanism; 822, fifth cutting mechanism; 823, second winding mechanism; 9, second processing mechanism; 91, first dust collector; 92, first corona machine. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0027] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] See also Figure 1 , this embodiment provides a film material preparation production line, which includes a first feeding unit 1, a first coating unit 2, a first compounding unit 3 and a second feeding unit 4, wherein the first feeding unit 1 and the first coating unit 2 are arranged in series, the first coating unit 2 includes a first gluing mechanism 21 and a first drying mechanism 22 arranged in sequence, the first gluing mechanism 21 and the first drying mechanism 22 are connected in series, the first feeding unit 1 can supply a first film material to the first gluing mechanism 21, the first film material is a base material layer, the first gluing mechanism 21 can apply a first glue layer on one side of the first film material, the first drying mechanism 22 can dry the first glue layer, the first compounding unit 3 is connected in series on the downstream side of the first drying mechanism 22, the second feeding unit 4 is arranged in parallel with the first feeding unit 1, the first feeding unit 1 can supply the first film material to the first compounding unit 3, the second feeding unit 4 can supply the second film material to the first compounding unit 3, and the first compounding unit 3 can bond the second film material to the side of the first film material coated with the first glue layer, thereby compounding the first film material and the second film material.

[0031] In addition to the first feeding unit 1, the first coating unit 2, the first compounding unit 3 and the second feeding unit 4, the film material preparation production line also includes a second coating unit 5, a second compounding unit 6 and a third feeding unit 7. The second coating unit 5 includes a second gluing mechanism 51 and a second drying mechanism 52 arranged in sequence. The second gluing mechanism 51 and the second drying mechanism 52 are connected in series, and the second gluing mechanism 51 is connected in series to the downstream side of the first compounding unit 3 and can apply a second glue layer on the other side of the first film material. The second drying mechanism 52 can dry the second glue layer, and the second compounding unit 6 is connected in series. On the downstream side of the second drying mechanism 52, the third loading unit 7 is arranged in parallel with the first loading unit 1, that is, the first loading unit 1, the second loading unit 4 and the third loading unit 7 are arranged in parallel, and the film material flowing out of the first composite unit 3 can be transported to the second composite unit 6, and the third loading unit 7 can supply the third film material to the second composite unit 6, and the second composite unit 6 can bond the third film material to the side of the first film material coated with the second adhesive layer, thereby composite the third film material with the first film material, and then obtain a composite film composited by the first film material, the second film material and the third film material.

[0032] In addition, the film material preparation production line also includes a winding unit 8, which is arranged on the downstream side of the second composite unit 6 and can wind up the film material flowing out of the second composite unit 6, that is, the winding unit 8 can wind up the composite film composed of the first film material, the second film material and the third film material.

[0033] Specifically, in this embodiment, the first loading unit 1, the first coating unit 2, the first compounding unit 3, the second coating unit 5, the second compounding unit 6 and the winding unit 8 are connected in series to form a conveyor line body, the second loading unit 4 and the third loading unit 7 are connected in parallel to the conveyor line body, the first loading unit 1 is used to supply the first film material, the first film material is the substrate layer, the second loading unit 4 and the third loading unit 7 can respectively convey the second film material and the third film material to the conveyor line body. For example, for the blue film with a release layer on both sides, the second film material and the third film material are both release films. The first film material can be conveyed along the conveying line, and one side of the first film material is coated with a first adhesive layer at the first coating unit 2, and the first compounding unit 3 can compound the second film material to the side of the first film material coated with the first adhesive layer, thereby forming a first film material. The first film material can continue to be conveyed along the conveying line, and the other side of the first film material can be coated with a second adhesive layer at the second coating unit 5, and the second compounding unit 6 can continue to compound the third film material on the first film material. Specifically, the second compounding unit 6 can compound the third film material to the side of the first film material coated with the second adhesive layer, thereby forming a second film material. The second film material is a composite film composed of the first film material, the second film material and the third film material, and the winding unit 8 located at the downstream end of the conveying line can wind up the second film material.

[0034] Based on the above, the film material preparation production line in this embodiment can continuously compound other film materials on both sides of the film material serving as the substrate layer, thereby producing a composite film composed of three layers of film materials without the need for two cycles of operation, thereby improving production efficiency.

[0035] It is worth noting that, in this embodiment, the second coating unit 5 includes two second coating mechanisms, which are connected in parallel between the second composite unit 6 and the second drying mechanism 52, so that different glues can be coated on the first film material according to actual needs, thereby improving the applicability of a single film material preparation production line. Of course, in other optional embodiments, the second coating unit 5 may also include three or more second coating mechanisms, all of which are connected in parallel between the second composite unit 6 and the second drying mechanism 52. This embodiment does not impose any specific restrictions on the number of second coating mechanisms.

[0036] Accordingly, in other optional embodiments, the first coating unit 2 may also be configured to include more than two first coating mechanisms, and the two or more first coating mechanisms are connected in parallel between the first loading unit 1 and the first drying mechanism 22. This embodiment does not impose any specific restrictions on this.

[0037] It is also worth noting that, for example, for the film material preparation production line provided in this embodiment, during the actual production process, the first loading unit 1, the first coating unit 2, the first compounding unit 3, the second compounding unit 6, and the third loading unit 7 can be in a stopped state, that is, only the second loading unit 4, the second coating unit 5, and the winding unit 8 are in operation on the film material preparation production line, thereby being suitable for producing single-sided adhesive tape products. In addition, during the actual production process, the second compounding unit 6 and the third loading unit 7 can be in a stopped state, that is, only the first loading unit 1, the first coating unit 2, the first compounding unit 3, the second loading unit 4, the second coating unit 5, and the winding unit 8 are in operation on the film material preparation production line, thereby being suitable for producing double-sided adhesive tape products.

[0038] Based on the above, in the actual production process, the membrane material preparation production line in this embodiment can select different working modes according to needs, so that it can be suitable for producing different types of products, that is, the membrane material preparation production line in this embodiment can realize multiple production functions.

[0039] Based on the content mentioned above, in this embodiment, the first loading unit 1 includes a first unwinding mechanism 11, a first cutting mechanism 12 and a first traction mechanism 13 arranged in sequence. The first unwinding mechanism 11 can supply the first film material to the first cutting mechanism 12, the first cutting mechanism 12 can cut the first film material, and the first traction mechanism 13 can pull the first film material to the first gluing mechanism 21. That is, in this embodiment, the first film material is supplied by the first unwinding mechanism 11, and the first film material is transported downstream through the first traction mechanism 13. In addition, after a single production task is completed, the first cutting mechanism 12 can cut the first film material to prevent the first film material from accumulating.

[0040] In addition, the first loading unit 1 also includes a first processing mechanism 14, which is arranged between the first cutting mechanism 12 and the first traction mechanism 13. The first processing mechanism 14 can perform corona and / or dust removal on the first film material. Specifically, the first processing mechanism 14 is used to perform corona and / or dust removal on the side of the first film material to be coated with the first adhesive layer, thereby ensuring that the first adhesive layer will not have defects such as bubbles and impurities.

[0041] Furthermore, the second loading unit 4 includes a second unwinding mechanism 41, a second cutting mechanism 42 and a second traction mechanism 43 which are arranged in sequence. The second unwinding mechanism 41 can supply the second film material to the second cutting mechanism 42, the second cutting mechanism 42 can cut the second film material, and the second traction mechanism 43 can pull the second film material to the first composite unit 3. That is, in this embodiment, the second film material is supplied through the second unwinding mechanism 41, and the second film material is transported to the second composite unit 6 through the second traction mechanism 43. In addition, after a single production task is completed, the second cutting mechanism 42 can cut the second film material to prevent the second film material from accumulating.

[0042] In addition, the second loading unit 4 also includes a first correcting mechanism 44, which is arranged between the second traction mechanism 43 and the first compounding unit 3, and can correct the position of the second film material, thereby ensuring that the relative position of the second film material and the first film material transported to the first compounding unit 3 is accurate, thereby ensuring that the first compounding unit 3 can accurately compound the second film material onto the first film material.

[0043] Furthermore, the film material preparation production line also includes a second processing mechanism 9, which is arranged between the first composite unit 3 and the second coating unit 5, and can perform corona and dust removal on the film material flowing out of the first composite unit 3. Based on the content mentioned above, what flows out of the first composite unit 3 is a first film material composed of a first film material and a second film material. The second processing mechanism 9 can perform corona and dust removal on the side of the first film material to be coated with the second adhesive layer, thereby ensuring that the second adhesive layer will not have defects such as bubbles and impurities.

[0044] Specifically, in this embodiment, the second processing mechanism 9 includes a first dust collector 91 and a first corona machine 92. The first dust collector 91 and the first corona machine 92 are connected in series between the first composite unit 3 and the second coating unit 5, so that the film material flowing out of the first composite unit 3 can be corona-discharged and dust-removed.

[0045] Of course, in other optional embodiments, the second processing mechanism 9 may also only include the first dust remover 91 or the first corona machine 92, so as to only perform corona or dust removal on the film material flowing out of the first composite unit 3. This embodiment does not impose specific restrictions on this.

[0046] Furthermore, the third loading unit 7 includes a third unwinding mechanism 71, a third cutting mechanism 72 and a third processing mechanism 73 which are arranged in sequence. The third unwinding mechanism 71 can supply the third film material to the third cutting mechanism 72, and the third cutting mechanism 72 can cut the third film material. That is, in this embodiment, the third film material is supplied by the third unwinding mechanism 71. After a single production task is completed, the third cutting mechanism 72 can cut the third film material to prevent the third film material from accumulating, and the third processing mechanism 73 can perform corona and dust removal on the third film material. Specifically, the third processing mechanism 73 is used to perform corona and dust removal on the third film material, thereby ensuring that the third film material can be tightly compounded to the first film material.

[0047] Specifically, in this embodiment, the third processing mechanism 73 includes a second dust remover 731 and a second corona machine 732, which are connected in series between the third cutting mechanism 72 and the second composite unit 6, so as to perform corona and dust removal on the third film material.

[0048] Of course, in other optional embodiments, the third processing mechanism 73 may also only include the second dust remover 731 or the second corona machine 732, so as to only perform corona or dust removal on the third film material. This embodiment does not impose specific restrictions on this.

[0049] It is worth noting that the second composite unit 6 is provided with a first traction module 61 and a second traction module 62, wherein the first traction module 61 is used to pull the film material flowing out of the second drying mechanism 52 to the second composite unit 6, and the second traction module 62 is used to pull the third film material to the second composite unit 6.

[0050] It is also worth noting that, in this embodiment, the third loading unit 7 also includes a second correcting mechanism 74. For example, the second correcting mechanism 74 is arranged between the third cutting mechanism 72 and the third processing mechanism 73, and can correct the position of the third film material, thereby ensuring that the relative position of the third film material transported to the second compounding unit 6 and the first film material is accurate, thereby ensuring that the second compounding unit 6 can accurately compound the third film material onto the first film material.

[0051] In addition, a third correcting mechanism 63 is provided between the second compounding unit 6 and the second drying mechanism 52. The third correcting mechanism 63 can correct the position of the film material flowing out of the second drying mechanism 52, that is, the third correcting mechanism 63 can correct the position of the first film material, thereby further ensuring that the relative position of the third film material and the first film material transported to the second compounding unit 6 is accurate, and further ensuring that the second compounding unit 6 can accurately compound the third film material onto the first film material.

[0052] Furthermore, in this embodiment, the winding unit 8 includes a material accumulator 811, a fourth traction mechanism 812, a fourth cutting mechanism 813, a fifth traction mechanism 814 and a first winding mechanism 815 which are arranged in sequence. The material accumulator 811 can temporarily store the film material flowing out of the second composite unit 6, the fourth traction mechanism 812 can pull the film material flowing out of the second composite unit 6 to the fourth cutting mechanism 813, the fourth cutting mechanism 813 can cut the film material flowing out of the second composite unit 6, and the fifth traction mechanism 814 can pull the film material flowing out of the fourth cutting mechanism 813 to the first winding mechanism 815, thereby winding the prepared composite film.

[0053] In addition, the winding unit 8 also includes a trimming mechanism 816 and a fourth correcting mechanism 817. The trimming mechanism 816 is arranged on the downstream side of the accumulator 811, and the fourth correcting mechanism 817 is arranged between the trimming mechanism 816 and the fourth traction mechanism 812. The trimming mechanism 816 is used to trim the film material flowing out of the second composite unit 6, thereby shaping its contour and ensuring that the prepared composite film meets the requirements, and the fourth correcting mechanism 817 is used to adjust the position of the film material to be wound, thereby ensuring that the first winding mechanism 815 can accurately wind the prepared composite film.

[0054] It should be noted that the winding unit 8 further includes a detection mechanism 818, which is configured to detect the film material flowing out of the second composite unit 6, so as to determine whether there are scratches or other defects on the surface of the composite film.

[0055] Based on the content mentioned above, the film material preparation production line in this embodiment can be suitable for producing different types of products. Among them, for products with higher requirements such as electronic product protective film and blue film, they can be wound through the accumulator 811, the fourth traction mechanism 812, the fourth cutting mechanism 813, the fifth traction mechanism 814 and the first winding mechanism 815. For products with lower requirements such as tape, this embodiment is additionally provided with a corresponding winding structure. Specifically, the winding unit 8 also includes a sixth traction mechanism 821, a fifth cutting mechanism 822 and a second winding mechanism 823 arranged in sequence. The sixth traction mechanism 821 and the accumulator 811 are connected in parallel to the downstream side of the second composite unit 6. The sixth traction mechanism 821 can pull the film material flowing out of the second composite unit 6 to the fifth cutting mechanism 822. The fifth cutting mechanism 822 can cut the film material flowing out of the second composite unit 6. The second winding mechanism 823 is arranged on the downstream side of the fifth cutting mechanism 822, thereby winding the prepared film material.

[0056] That is, in this embodiment, for the prepared film material, this embodiment can selectively roll it up to the first rolling mechanism 815 and the second rolling mechanism 823 according to the actual product, so that products with lower requirements such as tape can be quickly rolled up, thereby further improving production efficiency when producing products with lower requirements such as tape.

[0057] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Membrane material preparation production line, characterized in that, include: A first feeding unit (1) and a first coating unit (2), wherein the first feeding unit (1) and the first coating unit (2) are arranged in series, the first coating unit (2) comprises a first gluing mechanism (21) and a first drying mechanism (22) which are arranged in sequence, the first gluing mechanism (21) and the first drying mechanism (22) are connected in series, the first feeding unit (1) can supply a first film material to the first gluing mechanism (21), the first gluing mechanism (21) can apply a first glue layer on one side of the first film material, and the first drying mechanism (22) can dry the first glue layer; a first composite unit (3) and a second feeding unit (4), wherein the first composite unit (3) is connected in series to the downstream side of the first drying mechanism (22), and the second feeding unit (4) is arranged in parallel with the first feeding unit (1), the second feeding unit (4) is capable of supplying a second film material to the first composite unit (3), and the first composite unit (3) is capable of bonding the second film material to the side of the first film material coated with the first adhesive layer; The second coating unit (5) comprises a second gluing mechanism (51) and a second drying mechanism (52) which are sequentially arranged, wherein the second gluing mechanism (51) and the second drying mechanism (52) are connected in series, the second gluing mechanism (51) is connected in series to the downstream side of the first composite unit (3) and is capable of coating a second glue layer on the other side of the first film material, and the second drying mechanism (52) is capable of drying the second glue layer; a second composite unit (6) and a third feeding unit (7), wherein the second composite unit (6) is connected in series to the downstream side of the second drying mechanism (52), and the third feeding unit (7) is arranged in parallel with the first feeding unit (1), and the third feeding unit (7) is capable of supplying a third film material to the second composite unit (6), and the second composite unit (6) is capable of bonding the third film material to the side of the first film material coated with the second adhesive layer; and The winding unit (8) is arranged on the downstream side of the second composite unit (6) and is capable of winding the film material flowing out of the second composite unit (6).

2. The membrane material preparation production line according to claim 1, characterized in that: The first loading unit (1) comprises a first unwinding mechanism (11), a first cutting mechanism (12) and a first traction mechanism (13) which are arranged in sequence. The first unwinding mechanism (11) can supply the first film material to the first cutting mechanism (12), the first cutting mechanism (12) can cut the first film material, and the first traction mechanism (13) can traction the first film material to the first gluing mechanism (21).

3. The membrane material preparation production line according to claim 2, characterized in that: The first loading unit (1) further comprises a first processing mechanism (14), which is arranged between the first cutting mechanism (12) and the first traction mechanism (13), and the first processing mechanism (14) is capable of performing corona discharge and / or dust removal on the first film material.

4. The membrane material preparation production line according to claim 1, characterized in that: The second loading unit (4) comprises a second unwinding mechanism (41), a second cutting mechanism (42) and a second traction mechanism (43) which are arranged in sequence. The second unwinding mechanism (41) can supply the second film material to the second cutting mechanism (42), the second cutting mechanism (42) can cut the second film material, and the second traction mechanism (43) can pull the second film material to the first composite unit (3).

5. The membrane material preparation production line according to claim 4, characterized in that: The second loading unit (4) further comprises a first deviation-correcting mechanism (44), which is arranged between the second traction mechanism (43) and the first composite unit (3) and is capable of correcting the position of the second film material.

6. The membrane material preparation production line according to claim 4, characterized in that: The film material preparation production line further comprises a second processing mechanism (9), which is arranged between the first composite unit (3) and the second coating unit (5) and is capable of performing corona treatment and / or dust removal on the film material flowing out of the first composite unit (3).

7. The membrane material preparation production line according to claim 1, characterized in that: The third loading unit (7) includes a third unwinding mechanism (71), a third cutting mechanism (72) and a third processing mechanism (73) which are arranged in sequence. The third unwinding mechanism (71) can supply the third film material to the third cutting mechanism (72), the third cutting mechanism (72) can cut the third film material, and the third processing mechanism (73) can perform corona discharge and / or dust removal on the third film material.

8. The membrane material preparation production line according to claim 1, characterized in that: The winding unit (8) includes an accumulator (811), a fourth traction mechanism (812), a fourth cutting mechanism (813), a fifth traction mechanism (814) and a first winding mechanism (815) which are arranged in sequence. The accumulator (811) can temporarily store the film material flowing out of the second composite unit (6). The fourth traction mechanism (812) can pull the film material flowing out of the second composite unit (6) to the fourth cutting mechanism (813). The fourth cutting mechanism (813) can cut the film material flowing out of the second composite unit (6). The fifth traction mechanism (814) can pull the film material flowing out of the fourth cutting mechanism (813) to the first winding mechanism (815).

9. The membrane material preparation production line according to claim 8, characterized in that: The winding unit (8) further comprises a detection mechanism (818), wherein the detection mechanism (818) is configured to detect the film material flowing out of the second composite unit (6).

10. The membrane material preparation production line according to claim 8, characterized in that: The winding unit (8) further comprises a sixth traction mechanism (821), a fifth cutting mechanism (822) and a second winding mechanism (823) which are arranged in sequence. The sixth traction mechanism (821) and the accumulator (811) are connected in parallel to the downstream side of the second composite unit (6). The sixth traction mechanism (821) can pull the film material flowing out of the second composite unit (6) to the fifth cutting mechanism (822). The fifth cutting mechanism (822) can cut the film material flowing out of the second composite unit (6). The second winding mechanism (823) is arranged on the downstream side of the fifth cutting mechanism (822).

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