Film coating device and system

Abstract

The utility model relates to a film coating device and system, which comprises a main body unit, a supporting unit, a first material rolling unit, a first coating unit, a second coating unit, a first drying unit, two second drying units, a negative pressure unit, a second material rolling unit and a driving unit, the inner side of the main body unit can be divided into an upper layer area and a lower layer area from top to bottom; the supporting unit is arranged at the first end of the main body unit. The double-layer coating machine has the advantages that by means of the arrangement of the upper layer and the lower layer in the main body unit, coating of two coatings is completed in one device, the problem that the occupied area is large due to the fact that multiple coating machines are linearly and sequentially placed is solved, and the production efficiency is improved; the two second drying units are used for carrying out suspension drying on the second coating, so that the coating is prevented from being in contact with equipment when the second coating is coated; and the negative pressure unit is utilized to suspend the film coated by the second coating, so that scratches are avoided, and the appearance quality of the film surface is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to coating equipment, and in particular to a thin film coating device and system. Background Art

[0002] Coating is a solid continuous film obtained by applying the paint once. It is a thin layer of plastic applied to a substrate such as metal, fabric, plastic, etc. for the purpose of protection, insulation, decoration, etc. The paint can be gaseous, liquid, or solid. The type and state of the paint is usually determined by the substrate to be sprayed.

[0003] In the coating industry, if two different coatings are applied on the same surface of a film, two sets of coating devices are required. The film is coated with the first coating on the first coating machine, and then enters the second coating machine to complete the second coating. The coating machines are placed in a straight line, and the length of the production line is twice that of a single-layer coating. It occupies a large area and requires a large investment in equipment. In particular, some manufacturers are limited by the production site, and the length of the workshop cannot meet the placement of the coating line. Two coatings on the same surface must be achieved on the existing length. Generally, two devices are used in an offline manner. After the first coating is completed, the film is reeled up. Then the second coating is performed on the second coating machine, resulting in low production efficiency.

[0004] At present, no effective solution has been proposed for the problems in the related technology that multiple coating machines are arranged in a straight line, occupying a large area and having low efficiency of two coatings. Utility Model Content

[0005] The utility model aims to provide a thin film coating device and system to solve the problems existing in the related art that multiple coating machines are arranged in a straight line, occupy a large area, and have low efficiency of two coatings.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] In a first aspect, a thin film coating device is provided, comprising:

[0008] A main body unit, wherein the main body unit is arranged on a horizontal plane, and the inner side of the main body unit can be divided into an upper layer area and a lower layer area from top to bottom;

[0009] A support unit, wherein the support unit is arranged at a first end of the main body unit;

[0010] A first winding unit, which is detachably disposed at a first end of the supporting unit and is used for winding an uncoated film;

[0011] A first coating unit, which is disposed at the second end of the supporting unit and is connected to a coating material supply device, and is used for applying a first coating layer to the film;

[0012] A second coating unit, which is disposed at the second end of the main unit and is connected to the coating material supply device, and is used to apply a second coating to the film;

[0013] A first drying unit, wherein a first end of the first drying unit is disposed in a lower region of the main body unit, and a second end of the first drying unit extends to an outer side of the main body unit and is connected to an airflow drying device, for drying the first coating layer;

[0014] Two second drying units, the two second drying units are symmetrically arranged in the upper area of ​​the main unit and are respectively connected to the airflow drying device, for suspending the film in the upper area of ​​the main unit and drying the second coating;

[0015] A negative pressure unit, which is disposed at the second end of the main unit and is connected to the negative pressure device and is used for adsorbing the film;

[0016] a second material winding unit, which is detachably disposed at the first end of the supporting unit and is located outside the first material winding unit, and is used for winding the coated film;

[0017] A driving unit is disposed at the first end of the supporting unit and is detachably connected to the second coiling unit, so as to drive the second coiling unit to rotate.

[0018] In some embodiments, the main unit includes:

[0019] A main body component, wherein the inner side of the main body component can be divided into an upper area and a lower area from top to bottom, the upper area of ​​the main body component is provided with two second drying units, and the lower area of ​​the main body component is provided with a first drying unit;

[0020] A partition element, which is disposed on the inner side of the main body element and connected to the main body element, and is used to divide the main body element into an upper layer area and a lower layer area;

[0021] A plurality of first transmission elements, which are distributed along the length direction of the main body element and arranged in the lower area of ​​the inner side of the main body element, and are used for transmitting the film;

[0022] a first inlet element, the first inlet element being disposed at a first end of the main body element and being used for allowing the film to enter a lower region of the main body element;

[0023] a first outlet element, the first outlet element being disposed at the second end of the main body element and configured to allow the film to leave the lower region of the main body element;

[0024] a second inlet element, the second inlet element being disposed at the second end of the main body element and being used for allowing the film to enter the upper region of the main body element;

[0025] a second outlet element, the second outlet element being disposed at the first end of the main body element and used for allowing the film to be coated out of the upper region of the main body element;

[0026] A first through-slot element, which is disposed at the second end of the main body element and connected to the second end of the first drying unit, and is used for allowing the second end of the first drying unit to pass through the lower region of the main body element;

[0027] A second through-slot element, which is disposed at the second end of the main body element and connected to the second end of the second drying unit, and is used for allowing the second end of the second drying unit to pass through the upper region of the main body element;

[0028] a third through-slot element, the third through-slot element being disposed at the second end of the main body element and connected to the second end of another second drying unit, and being used for allowing the second end of another second drying unit to pass through the upper region of the main body element;

[0029] Two first supporting elements, which are symmetrically arranged on both sides of the first outlet element and located outside the main body element;

[0030] A second transmission element, the second transmission element is rotatably disposed between the two first supporting elements;

[0031] Two second supporting elements are symmetrically arranged on both sides of the second inlet element, located outside the main element, and respectively connected to the main element, the second coating unit, and the negative pressure unit.

[0032] In some embodiments, the support unit comprises:

[0033] a bottom plate element, the bottom plate element being disposed at a first end of the main body unit;

[0034] Two third supporting elements, the two third supporting elements are symmetrically arranged at the first end of the top end of the bottom plate element and are respectively detachably connected to the second coiling unit, and one of the third supporting elements is connected to the driving unit;

[0035] Two fourth supporting elements, the two fourth supporting elements are symmetrically arranged at the top end of the bottom plate element and located on one side of the two third supporting elements, and are respectively detachably connected to the first coiling unit;

[0036] Two fifth supporting elements, the two fifth supporting elements are symmetrically arranged at the top end of the bottom plate element and located on one side of the two fourth supporting elements;

[0037] A third transmission element, the third transmission element being rotatably disposed between the two fifth supporting elements;

[0038] Two sixth supporting elements, the two sixth supporting elements are symmetrically arranged at the second end of the top end of the bottom plate element, are located on one side of the two fifth supporting elements, and are respectively connected to the first coating unit;

[0039] A fourth transmission element is rotatably disposed between the two sixth supporting elements and is located below the first coating unit.

[0040] In some embodiments, the first coil unit comprises:

[0041] A first winding element is detachably disposed at a first end of the supporting unit and is used for winding an uncoated film.

[0042] In some embodiments, the first coating unit includes:

[0043] a first coating element, the first coating element being disposed at a second end of the supporting unit;

[0044] A plurality of first coating outlet elements, which are distributed along the axial direction of the first coating element at the bottom of the first coating element and are respectively connected to the inner side of the first coating element, and are used to spray the coating material to apply a first coating to the film;

[0045] a first coating material inlet element, the first coating material inlet element being disposed on the top of the first coating material element and communicating with the inner side of the first coating material element;

[0046] A first guide element is connected to the first coating element and is respectively communicated with the first coating material inlet element and the coating material supply device, and is used for conveying the coating material to the first coating element.

[0047] In some embodiments, the second coating unit includes:

[0048] a second coating element, the second coating element being disposed at a second end of the main body unit;

[0049] A plurality of second coating outlet elements, which are distributed along the axial direction of the second coating element at the top of the second coating element and are distributed and communicated with the inner side of the second coating element, and are used to spray the coating material to apply a second coating to the film;

[0050] a second coating material inlet element, the second coating material inlet element being disposed at the bottom end of the second coating element and communicating with the inner side of the second coating element;

[0051] The second guide element is connected to the second coating element and is respectively in communication with the second coating material inlet element and the coating material supply device, and is used for conveying the coating material to the second coating element.

[0052] In some embodiments, the first drying unit includes:

[0053] a first drying element, the first drying element being disposed in a lower region of the main body unit;

[0054] A first air outlet element, which is disposed at the bottom end of the first drying element and is used to blow out a hot stream to dry the first coating;

[0055] a second air outlet element, the second air outlet element being disposed at a top end of the first drying element and being in communication with the first air outlet element;

[0056] A first air inlet element, wherein a first end of the first air inlet element is connected to the top end of the first drying element and communicated with the second air outlet element, and a second end of the first air inlet element extends to the outside of the main unit and communicated with the airflow drying device, for conveying heat flow to the first air outlet element.

[0057] In some embodiments, the second drying unit includes:

[0058] a second drying element, the second drying element being disposed in an upper region of the main body unit;

[0059] a third air outlet element, the third air outlet element being disposed at the top of the second drying element and used for blowing out a hot stream to dry the second coating;

[0060] a fourth air outlet element, the fourth air outlet element being arranged at the bottom end of the second drying element and being connected to the third air outlet element;

[0061] A second air inlet element, wherein the first end of the second air inlet element is connected to the bottom end of the second drying element and is communicated with the fourth air outlet element, and the second end of the second air inlet element extends to the outside of the main unit and is communicated with the airflow drying device, for conveying heat flow to the fourth air outlet element.

[0062] In some embodiments, the negative pressure unit comprises:

[0063] A negative pressure element, which is disposed at the second end of the main unit and is used for adsorbing the film;

[0064] A negative pressure input element is provided through the negative pressure element and is in communication with the negative pressure device, and is used for delivering the negative pressure airflow to the negative pressure element.

[0065] In some embodiments, the second coil unit comprises:

[0066] A second winding element, which is detachably disposed at the first end of the supporting unit and is used to wind the coated film;

[0067] A first clamping element, which is disposed at an end of the second coiling element and is detachably connected to the driving unit;

[0068] A locking element, wherein the locking element is rotatably disposed on the second coiling element and contacts the driving unit, and is used to stabilize the connection between the first clamping element and the driving unit.

[0069] In some embodiments, the driving unit includes:

[0070] a base element, the base element being disposed at a first end of the support unit and connected to the support unit;

[0071] A driving element, the driving element is arranged at the top of the base element and connected to the base element;

[0072] A limiting element, wherein the limiting element is coaxially arranged with an output end of the driving element;

[0073] A second clamping element, wherein a first end of the second clamping element is connected to the limiting element, and a second end of the second clamping element is detachably connected to the second coiling unit, for driving the second coiling unit to rotate.

[0074] In a second aspect, a thin film coating system is provided, comprising:

[0075] The thin film coating device as described in the first aspect;

[0076] At least one coating material supply device, the coating material supply device is communicated with the first coating unit and the second coating unit respectively, and is used to transport coating material to the first coating unit and the second coating unit respectively;

[0077] At least one airflow drying device, the airflow drying device is respectively connected to the first drying unit and the two second drying units, and is used to transmit heat flow to the first drying unit and the two second drying units respectively;

[0078] A negative pressure device is connected to the negative pressure unit and is used to provide negative pressure.

[0079] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0080] The utility model discloses a thin film coating device and system. The upper and lower layers of the main unit are arranged internally, so that two coatings are applied in one device, avoiding the problem of a large floor space occupied by a plurality of coating machines arranged in a straight line, thereby improving production efficiency. The second coating is suspended and dried by two second drying units, so that the coating is avoided from contacting the device when the second coating is applied. The negative pressure unit is used to suspend the thin film to be coated with the second coating, so that scratches are not generated, thereby improving the appearance quality of the film surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 It is a three-dimensional structural schematic diagram of a thin film coating device according to an embodiment of the utility model;

[0082] Figure 2 is a schematic diagram of the internal three-dimensional structure of a thin film coating device according to an embodiment of the utility model;

[0083] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the main unit according to an embodiment of the utility model;

[0084] Figure 4 is a schematic diagram of a three-dimensional structure of a support unit according to an embodiment of the utility model;

[0085] Figure 5 is a schematic diagram of the three-dimensional structure of the first coiling unit according to an embodiment of the utility model;

[0086] Figure 6a is a schematic diagram of the three-dimensional structure of the first coating unit according to an embodiment of the utility model;

[0087] Figure 6b is a schematic diagram of the internal structure of the first coating unit according to an embodiment of the utility model;

[0088] Figure 7ais a schematic diagram of the three-dimensional structure of the second coating unit according to an embodiment of the utility model;

[0089] Figure 7b is a schematic diagram of the internal structure of the second coating unit according to an embodiment of the utility model;

[0090] Figure 8 is a schematic diagram of the internal three-dimensional structure of the first drying unit according to an embodiment of the utility model;

[0091] Figure 9a is a schematic diagram of the three-dimensional structure of the second drying unit according to an embodiment of the utility model;

[0092] Figure 9b is a schematic diagram of the internal three-dimensional structure of the second drying unit according to an embodiment of the utility model;

[0093] Fig.10 is a schematic diagram of the three-dimensional structure of a negative pressure unit according to an embodiment of the utility model;

[0094] Fig.11a is a schematic diagram of the three-dimensional structure of the second coiling unit according to an embodiment of the utility model;

[0095] Fig.11b is an exploded view of a second coil unit according to an embodiment of the utility model;

[0096] Fig.12 is a schematic diagram of the three-dimensional structure of a driving unit according to an embodiment of the utility model;

[0097] Fig.13 It is a structural schematic diagram of a thin film coating system according to an embodiment of the utility model.

[0098] The accompanying drawings are marked as follows: 100, main unit; 101, main element; 102, partition element; 103, first transmission element; 104, first inlet element; 105, first outlet element; 106, second inlet element; 107, second outlet element; 108, first slot element; 109, second slot element; 110, third slot element; 111, first support element; 112, second transmission element; 113, second support element; 200, support unit; 201, bottom plate element; 202, third support element; 203, fourth support element; 204, fifth support element; 205, third transmission element; 206, sixth support element; 207, fourth transmission element; 300, first coil unit; 301, first coil element; 400, first coating unit; 401, first coating element; 402, first coating outlet element; 403, first coating inlet 404, first guide element; 500, second coating unit; 501, second coating element; 502, second coating outlet element; 503, second coating inlet element; 504, second guide element; 600, first drying unit; 601, first drying element; 602, first air outlet element; 603, second air outlet element; 604, first air inlet element; 700, second drying unit; 701, second drying element; 70 2. The third air outlet element; 703. The fourth air outlet element; 704. The second air inlet element; 800. The negative pressure unit; 801. The negative pressure element; 802. The negative pressure input element; 900. The second coiling unit; 901. The second coiling element; 902. The first clamping element; 903. The locking element; 1000. The driving unit; 1001. The base element; 1002. The driving element; 1003. The limiting element; 1004. The second clamping element;

[0099] A. Thin film coating device; B. Coating material supply device; C. Air flow drying device; D. Negative pressure device. DETAILED DESCRIPTION

[0100] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0101] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0102] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0103] Example 1

[0104] This embodiment relates to a thin film coating device of the utility model.

[0105] An illustrative embodiment of the present utility model is as follows: Figure 1 , Figure 2 As shown, a thin film coating device A includes a main unit 100, a support unit 200, a first winding unit 300, a first coating unit 400, a second coating unit 500, a first drying unit 600, two second drying units 700, a negative pressure unit 800, a second winding unit 900 and a driving unit 1000. The main body unit 100 is arranged on a horizontal plane, and the inner side of the main body unit 100 can be divided into an upper area and a lower area from top to bottom; the support unit 200 is arranged at the first end of the main body unit 100; the first coil unit 300 is detachably arranged at the first end of the support unit 200, and is used to wind an uncoated film; the first coating unit 400 is arranged at the second end of the support unit 200, and is connected to the coating material supply device, and is used to apply a first coating layer to the film; the second coating unit 500 is arranged at the second end of the main body unit 100, and is connected to the coating material supply device, and is used to apply a second coating layer to the film; the first end of the first drying unit 600 is arranged at the lower area of ​​the main body unit 100, and the second end of the first drying unit 600 extends to the main unit 1 00, and is connected to the outside of the first winding unit 300, for drying the first coating; the two second drying units 700 are symmetrically arranged in the upper area of ​​the main unit 100, and are respectively connected to the airflow drying device, for suspending the film in the upper area of ​​the main unit 100 and drying the second coating; the negative pressure unit 800 is arranged at the second end of the main unit 100, and is connected to the negative pressure device, for adsorbing the film; the second winding unit 900 is detachably arranged at the first end of the support unit 200, and is located on the outside of the first winding unit 300, for winding the coated film; the driving unit 1000 is arranged at the first end of the support unit 200, and is detachably connected to the second winding unit 900, for driving the second winding unit 900 to rotate.

[0106] Specifically, the first winding unit 300 wrapped with the film is placed on the support unit 200; the second winding unit 900 is placed on the support unit 200 and is clamped with the driving unit 1000; the film is passed through the support unit 200, the first coating unit 400, the lower area of ​​the main unit 100, the second coating unit 500, the negative pressure unit 800, and the upper area of ​​the main unit 100, and then passed through the support unit 200 and the second winding unit 900 for several turns; the second winding unit 900 is driven by the driving unit 1000 to wind the coated film; during the process, the first coating unit 400 is used to apply a first coating to the film; the first drying unit 600 is used to dry the first coating; the second coating unit 500 is used to apply a second coating to the film; and the second drying unit 700 is used to dry the second coating.

[0107] like Figure 3As shown, the main unit 100 includes a main element 101, a partition element 102, a plurality of first transmission elements 103, a first inlet element 104, a first outlet element 105, a second inlet element 106, a second outlet element 107, a first through-groove element 108, a second through-groove element 109, a third through-groove element 110, two first support elements 111, a second transmission element 112 and two second support elements 113. The inner side of the main element 101 can be divided into an upper region and a lower region from top to bottom, the upper region of the main element 101 is provided with two second drying units 700, and the lower region of the main element 101 is provided with a first drying unit 600; the partition element 102 is provided on the inner side of the main element 101 and connected to the main element 101, and is used to divide the main element 101 into an upper region and a lower region; a plurality of first transmission elements 103 are distributed and provided in the lower region of the inner side of the main element 101 along the length direction of the main element 101, and are used to transmit The first inlet element 104 is arranged at the first end of the main element 101, and is used for the film to enter the lower area of ​​the main element 101; the first outlet element 105 is arranged at the second end of the main element 101, and is used for the film to leave the lower area of ​​the main element 101; the second inlet element 106 is arranged at the second end of the main element 101, and is used for the film to enter the upper area of ​​the main element 101; the second outlet element 107 is arranged at the first end of the main element 101, and is used for the film to be coated out of the upper area of ​​the main element 101; the first passage The slot element 108 is disposed at the second end of the main body element 101 and is connected to the second end of the first drying unit 600, so as to allow the second end of the first drying unit 600 to pass through the lower region of the main body element 101; the second through-slot element 109 is disposed at the second end of the main body element 101 and is connected to the second end of a second drying unit 700, so as to allow the second end of a second drying unit 700 to pass through the upper region of the main body element 101; the third through-slot element 110 is disposed at the second end of the main body element 101 and is connected to the second end of another second drying unit 700, so as to allow the second end of the second drying unit 700 to pass through the upper region of the main body element 101; The two ends are connected for allowing the second end of another second drying unit 700 to pass through the upper area of ​​the main element 101; the two first supporting elements 111 are symmetrically arranged on both sides of the first outlet element 105 and are located outside the main element 101; the second transmission element 112 is rotatably arranged between the two first supporting elements 111; the two second supporting elements 113 are symmetrically arranged on both sides of the second inlet element 106 and are located outside the main element 101, and are respectively connected to the main element 101, the second coating unit 500, and the negative pressure unit 800.

[0108] The main body element 101 is a hollow structure and has a rectangular cross section.

[0109] In some of the embodiments, the main body element 101 is made of stainless steel.

[0110] In some of the embodiments, the main body element 101 is a box.

[0111] The partition element 102 has a rectangular cross section.

[0112] The size of the partition element 102 matches the size of the main body element 101. Generally, the length of the partition element 102 is equal to the inner length of the main body element 101, the width of the partition element 102 is equal to the inner width of the main body element 101, and the height of the partition element 102 is less than the inner height of the main body element 101.

[0113] In some embodiments, the partition element 102 is fixedly connected to the main element 101, including but not limited to welding.

[0114] In some embodiments, the partition element 102 is made of stainless steel.

[0115] In some embodiments, the partition element 102 is a partition plate.

[0116] The cross section of the first transmission element 103 is circular.

[0117] The size of the first transmission element 103 matches the size of the main element 101. Generally, the diameter of the first transmission element 103 is smaller than the inner length and inner height of the main element 101, and the axial size of the first transmission element 103 is equal to the inner width of the main element 101.

[0118] In some of the embodiments, the number of the first transmission elements 103 is eight.

[0119] In some of the embodiments, the first transmission element 103 is fixedly connected to the main element 101 .

[0120] In some of the embodiments, the first transmission element 103 is made of stainless steel.

[0121] In some of the embodiments, the first transmission element 103 is a first transmission roller.

[0122] The first inlet element 104 has a rectangular cross section.

[0123] The size of the first inlet element 104 matches the size of the main body element 101. Generally, the length of the first inlet element 104 is less than the inner width of the main body element 101, the width of the first inlet element 104 is equal to the side wall thickness of the main body element 101, and the height of the first inlet element 104 is less than the inner height of the main body element 101.

[0124] In some of the embodiments, the first inlet element 104 is a first inlet slot.

[0125] The first outlet element 105 has a rectangular cross section.

[0126] The size of the first outlet element 105 matches the size of the main body element 101. Generally, the length of the first outlet element 105 is less than the inner width of the main body element 101, the width of the first outlet element 105 is equal to the side wall thickness of the main body element 101, and the height of the first outlet element 105 is less than the inner height of the main body element 101.

[0127] The size of the first outlet element 105 matches the size of the first inlet element 104. Generally, the length of the first outlet element 105 is equal to the length of the first inlet element 104, the width of the first outlet element 105 is equal to the width of the first inlet element 104, and the height of the first outlet element 105 is equal to the height of the first inlet element 104.

[0128] In some of the embodiments, the first outlet element 105 is a first outlet slot.

[0129] The cross section of the second inlet element 106 is rectangular.

[0130] The size of the second inlet element 106 matches the size of the main body element 101. Generally, the length of the second inlet element 106 is less than the inner width of the main body element 101, the width of the second inlet element 106 is equal to the side wall thickness of the main body element 101, and the height of the second inlet element 106 is less than the inner height of the main body element 101.

[0131] The size of the second inlet element 106 matches the size of the first outlet element 105. Generally, the length of the second inlet element 106 is equal to the length of the first outlet element 105, the width of the second inlet element 106 is equal to the width of the first outlet element 105, and the height of the second inlet element 106 is equal to the height of the first outlet element 105.

[0132] In some of the embodiments, the second inlet element 106 is a second inlet slot.

[0133] The second outlet element 107 has a rectangular cross section.

[0134] The size of the second outlet element 107 matches the size of the main body element 101. Generally, the length of the second outlet element 107 is less than the inner width of the main body element 101, the width of the second outlet element 107 is equal to the side wall thickness of the main body element 101, and the height of the second outlet element 107 is less than the inner height of the main body element 101.

[0135] The size of the second outlet element 107 matches the size of the second inlet element 106. Generally, the length of the second outlet element 107 is equal to the length of the second inlet element 106, the width of the second outlet element 107 is equal to the width of the second inlet element 106, and the height of the second outlet element 107 is equal to the height of the second inlet element 106.

[0136] In some of the embodiments, the second outlet element 107 is a second outlet slot.

[0137] The cross section of the first through-channel element 108 is circular.

[0138] The size of the first through-groove element 108 matches the size of the main body element 101. Generally, the diameter of the first through-groove element 108 is smaller than the inner width and inner height of the main body element 101, and the axial size (such as depth) of the first through-groove element 108 is equal to the sidewall thickness of the main body element 101.

[0139] In some of the embodiments, the first through-slot element 108 is a first through-slot.

[0140] The cross section of the second through-channel element 109 is circular.

[0141] The size of the second through-groove element 109 matches the size of the main body element 101. Generally, the diameter of the second through-groove element 109 is smaller than the inner width and inner height of the main body element 101, and the axial size (such as depth) of the second through-groove element 109 is equal to the side wall thickness of the main body element 101.

[0142] In some of the embodiments, the second through-slot element 109 is a second through-slot.

[0143] The cross section of the third through-groove element 110 is circular.

[0144] The size of the third through-groove element 110 matches the size of the main body element 101. Generally, the diameter of the third through-groove element 110 is smaller than the inner width and inner height of the main body element 101, and the axial size (such as depth) of the third through-groove element 110 is equal to the sidewall thickness of the main body element 101.

[0145] The size of the third through-groove element 110 matches the size of the second through-groove element 109. Generally, the diameter of the third through-groove element 110 is equal to the diameter of the second through-groove element 109, and the axial dimension (such as depth) of the third through-groove element 110 is equal to the axial dimension (such as depth) of the second through-groove element 109.

[0146] In some of the embodiments, the third through-slot element 110 is a third through-slot.

[0147] The cross section of the first supporting element 111 is rectangular.

[0148] The size of the first support element 111 matches the size of the main body element 101. Generally, the length of the first support element 111 is smaller than the outer length of the main body element 101, the width of the first support element 111 is smaller than the outer width of the main body element 101, and the height of the first support element 111 is smaller than the outer height of the main body element 101.

[0149] The distance between the two first supporting elements 111 is greater than the length of the first outlet element 105 .

[0150] In some embodiments, the first support element 111 is fixedly connected to the main body element 101, including but not limited to welding.

[0151] In some embodiments, the first supporting element 111 is made of stainless steel.

[0152] In some embodiments, the first supporting element 111 is a first supporting plate.

[0153] The cross section of the second transmission element 112 is circular.

[0154] The size of the second transmission element 112 matches the size of the first support element 111. Generally, the diameter of the second transmission element 112 is smaller than the length and width of the first support element 111, and the axial size of the second transmission element 112 is equal to the distance between the two first support elements 111.

[0155] In some embodiments, the second transmission element 112 is rotationally connected to the first support element 111. For example, the second transmission element 112 is connected to the first support element 111 via a bearing seat.

[0156] In some of the embodiments, the second transmission element 112 is made of stainless steel.

[0157] In some of the embodiments, the second transport element 112 is a second transport roller.

[0158] The cross section of the second supporting element 113 is rectangular.

[0159] The size of the second support element 113 matches the size of the main body element 101. Generally, the length of the second support element 113 is smaller than the outer length of the main body element 101, the width of the second support element 113 is smaller than the outer width of the main body element 101, and the height of the second support element 113 is smaller than the outer height of the main body element 101.

[0160] The distance between the two second supporting elements 113 is greater than the length of the second inlet element 106 .

[0161] In some embodiments, the second supporting element 113 is fixedly connected to the main element 101, including but not limited to welding.

[0162] In some embodiments, the second supporting element 113 is made of stainless steel.

[0163] In some embodiments, the second supporting element 113 is a second supporting plate.

[0164] like Figure 4 As shown, the support unit 200 includes a base element 201 , two third support elements 202 , two fourth support elements 203 , two fifth support elements 204 , a third transmission element 205 , two sixth support elements 206 and a fourth transmission element 207 . Among them, the bottom plate element 201 is arranged at the first end of the main unit 100; the two third supporting elements 202 are symmetrically arranged at the first end of the top of the bottom plate element 201, and are respectively detachably connected to the second winding unit 900, and one third supporting element 202 is connected to the driving unit 1000; the two fourth supporting elements 203 are symmetrically arranged at the top of the bottom plate element 201, and are located on one side of the two third supporting elements 202, and are respectively detachably connected to the first winding unit 300; the two fifth supporting elements 204 are symmetrically arranged at the top of the bottom plate element 201, and are located on one side of the two fourth supporting elements 203; the third transmission element 205 is rotatably arranged between the two fifth supporting elements 204; the two sixth supporting elements 206 are symmetrically arranged at the second end of the top of the bottom plate element 201, and are located on one side of the two fifth supporting elements 204, and are respectively connected to the first coating unit 400; the fourth transmission element 207 is rotatably arranged between the two sixth supporting elements 206, and is located below the first coating unit 400.

[0165] Specifically, the bottom plate element 201 is disposed at a first end of the main body element 101 .

[0166] The cross section of the base member 201 is rectangular.

[0167] The size of the bottom plate element 201 matches the size of the main body element 101. Generally, the length of the bottom plate element 201 is less than the outer length of the main body element 101, the base width of the bottom plate element 201 is equal to the outer width of the main body element 101, and the height of the bottom plate element 201 is less than the outer height of the main body element 101.

[0168] In some of the embodiments, the bottom plate element 201 is made of stainless steel.

[0169] In some of the embodiments, the base element 201 is a base.

[0170] The third supporting element 202 is a rectangular column with a circular arc groove at the top, and is used to adapt to the second coiling unit 900.

[0171] The cross section of the third supporting element 202 is rectangular.

[0172] The size of the third support element 202 matches the size of the bottom plate element 201. Generally, the length of the third support element 202 is smaller than the length of the bottom plate element 201, the width of the third support element 202 is smaller than the width of the bottom plate element 201, and the height of the third support element 202 is greater than the height of the bottom plate element 201.

[0173] Generally, a third supporting element 202 is disposed on one side of the top end of the bottom plate element 201 , and a third supporting element 202 is disposed on the other side of the top end of the bottom plate element 201 .

[0174] In some of the embodiments, the third supporting element 202 is fixedly connected to the base element 201 , including but not limited to welding.

[0175] In some embodiments, the third supporting element 202 is made of stainless steel.

[0176] In some of the embodiments, the third supporting element 202 is a first supporting frame.

[0177] The fourth supporting element 203 is a rectangular column with a circular arc groove at the top, and is used to adapt to the first coiling unit 300.

[0178] The cross section of the fourth supporting element 203 is rectangular.

[0179] The size of the fourth support element 203 matches the size of the bottom plate element 201. Generally, the length of the fourth support element 203 is smaller than the length of the bottom plate element 201, the width of the fourth support element 203 is smaller than the width of the bottom plate element 201, and the height of the fourth support element 203 is greater than the height of the bottom plate element 201.

[0180] Generally, a fourth supporting element 203 is disposed on one side of the top end of the bottom plate element 201 , and a fourth supporting element 203 is disposed on the other side of the top end of the bottom plate element 201 .

[0181] In some of the embodiments, the fourth supporting element 203 is fixedly connected to the base element 201 , including but not limited to welding.

[0182] In some embodiments, the fourth supporting element 203 is made of stainless steel.

[0183] In some of the embodiments, the fourth supporting element 203 is a second supporting frame.

[0184] The cross section of the fifth supporting element 204 is rectangular.

[0185] The size of the fifth support element 204 matches the size of the bottom plate element 201. Generally, the length of the fifth support element 204 is smaller than the length of the bottom plate element 201, the width of the fifth support element 204 is smaller than the width of the bottom plate element 201, and the height of the fifth support element 204 is greater than the height of the bottom plate element 201.

[0186] The size of the fifth support element 204 matches the size of the third support element 202 (fourth support element 203). Generally, the length of the fifth support element 204 is equal to the length of the third support element 202 (fourth support element 203), the width of the fifth support element 204 is equal to the width of the third support element 202 (fourth support element 203), and the height of the fifth support element 204 is greater than the height of the third support element 202 (fourth support element 203).

[0187] Generally, a fifth supporting element 204 is disposed on one side of the top end of the bottom plate element 201 , and a fifth supporting element 204 is disposed on the other side of the top end of the bottom plate element 201 .

[0188] In some embodiments, the fifth supporting element 204 is fixedly connected to the base element 201 , including but not limited to welding.

[0189] In some embodiments, the fifth supporting element 204 is made of stainless steel.

[0190] In some of the embodiments, the fifth supporting element 204 is a third supporting frame.

[0191] The cross section of the third transmission element 205 is circular.

[0192] The size of the third transmission element 205 matches the size of the fifth support element 204. Generally, the diameter of the third transmission element 205 is greater than the length of the fifth support element 204, and the diameter of the third transmission element 205 is less than the height of the fifth support element 204.

[0193] The axial dimension of the third transmission element 205 is equal to the distance between the two fifth support elements 204 .

[0194] In some embodiments, the third transmission element 205 is rotationally connected to the fifth support element 204. For example, the third transmission element 205 is connected to the fifth support element 204 via a bearing seat.

[0195] In some of the embodiments, the third transmission element 205 is made of stainless steel.

[0196] In some of the embodiments, the third transport element 205 is a third transport roller.

[0197] The cross section of the sixth supporting element 206 is rectangular.

[0198] The size of the sixth support element 206 matches the size of the bottom plate element 201. Generally, the length of the sixth support element 206 is smaller than the length of the bottom plate element 201, the width of the sixth support element 206 is smaller than the width of the bottom plate element 201, and the height of the sixth support element 206 is greater than the height of the bottom plate element 201.

[0199] The size of the sixth support element 206 matches the size of the fifth support element 204. Generally, the length of the sixth support element 206 is equal to the length of the fifth support element 204, the width of the sixth support element 206 is equal to the width of the fifth support element 204, and the height of the sixth support element 206 is less than the height of the fifth support element 204.

[0200] Generally, a sixth supporting element 206 is disposed on one side of the top end of the base element 201 , and a sixth supporting element 206 is disposed on the other side of the top end of the base element 201 .

[0201] In some of the embodiments, the sixth support element 206 is fixedly connected to the base element 201 , including but not limited to welding.

[0202] In some embodiments, the sixth supporting element 206 is made of stainless steel.

[0203] In some of the embodiments, the sixth support element 206 is a fourth support frame.

[0204] The cross section of the fourth transmission element 207 is circular.

[0205] The size of the fourth transmission element 207 matches the size of the sixth support element 206. Generally, the diameter of the fourth transmission element 207 is greater than the length of the sixth support element 206, and the diameter of the fourth transmission element 207 is less than the height of the sixth support element 206.

[0206] The axial dimension of the fourth transmission element 207 is equal to the distance between the two sixth support elements 206 .

[0207] In some embodiments, the fourth transmission element 207 is rotationally connected to the sixth support element 206. For example, the fourth transmission element 207 is connected to the sixth support element 206 via a bearing seat.

[0208] In some of the embodiments, the fourth transmission element 207 is made of stainless steel.

[0209] In some of the embodiments, the fourth transport element 207 is a fourth transport roller.

[0210] like Figure 5 As shown, the first winding unit 300 includes a first winding element 301. The first winding element 301 is detachably disposed at the first end of the supporting unit 200, and is used to wind the uncoated film.

[0211] Specifically, the first coiled material element 301 is detachably disposed on the top ends of the two fourth supporting elements 203 .

[0212] Generally, the first coiling element 301 includes a bearing and a roller body, wherein the bearings are detachably disposed at the top ends of the two fourth supporting elements 203, respectively; the roller body is coaxially disposed with the bearings and is used for winding the uncoated film for coating.

[0213] The size of the bearing matches the size of the fourth support element 203. Generally, the diameter of the bearing is smaller than the length and height of the fourth support element 203, and the axial size of the bearing is larger than the distance between two fourth support elements 203.

[0214] The size of the roller body matches the size of the fourth support element 203. Generally, the diameter of the roller body is larger than the length of the fourth support element 203, the diameter of the roller body is smaller than the height of the fourth support element 203, and the axial size of the roller body is smaller than the distance between two fourth support elements 203.

[0215] The size of the roller body matches the size of the bearing. Generally, the diameter of the roller body is larger than the diameter of the bearing, and the axial size of the roller body is smaller than the bearing size of the bearing.

[0216] In some of the embodiments, the first coil element 301 is made of stainless steel.

[0217] In some of the embodiments, the first web element 301 is a first web roller.

[0218] like Figure 6a , Figure 6bAs shown, the first coating unit 400 includes a first coating element 401, a plurality of first coating outlet elements 402, a first coating inlet element 403 and a first drainage element 404. The first coating element 401 is arranged at the second end of the support unit 200; the plurality of first coating outlet elements 402 are arranged at the bottom of the first coating element 401 along the axial direction of the first coating element 401, and are respectively connected to the inner side of the first coating element 401, and are used to spray out the coating material to apply the first coating layer to the film; the first coating inlet element 403 is arranged at the top of the first coating element 401, and is connected to the inner side of the first coating element 401; the first drainage element 404 is connected to the first coating element 401, and is respectively connected to the first coating inlet element 403 and the coating material supply device, and is used to convey the coating material to the first coating element 401.

[0219] Specifically, the first coating element 401 is disposed between two sixth supporting elements 206 and is respectively connected to the two sixth supporting elements 206 .

[0220] The first coating element 401 is a hollow structure and has an arc-shaped cross section.

[0221] The size of the first coating element 401 matches the size of the sixth supporting element 206. Generally, the outer diameter of the first coating element 401 is greater than the length of the sixth supporting element 206, and the outer diameter of the first coating element 401 is less than the height of the sixth supporting element 206.

[0222] The outer axial dimension of the first coating element 401 is equal to the distance between the two sixth supporting elements 206 .

[0223] In some of the embodiments, the first coating element 401 is fixedly connected to the sixth supporting element 206 , including but not limited to welding.

[0224] In some of the embodiments, the first coating element 401 is made of stainless steel.

[0225] In some of the embodiments, the first coating element 401 is a first coating roller.

[0226] The cross section of the first coating material outlet element 402 is circular.

[0227] The size of the first coating outlet element 402 matches the size of the first coating element 401. Generally, the diameter of the first coating outlet element 402 is smaller than the inner diameter and inner axial dimension of the first coating element 401, and the axial dimension (such as depth) of the first coating outlet element 402 is equal to the inner wall thickness of the first coating element 401.

[0228] In some embodiments, the number of the first coating material outlet elements 402 is ten.

[0229] In some of the embodiments, the first coating material outlet element 402 is a first coating material outlet.

[0230] The first coating material inlet member 403 has a circular cross section.

[0231] The size of the first coating inlet element 403 matches the size of the first coating element 401. Generally, the diameter of the first coating inlet element 403 is smaller than the inner diameter and inner axial dimension of the first coating element 401, and the axial dimension (such as depth) of the first coating inlet element 403 is equal to the inner wall thickness of the first coating element 401.

[0232] The size of the first coating material inlet element 403 matches the size of the first coating material outlet element 402. Generally, the diameter of the first coating material inlet element 403 is larger than the diameter of the first coating material outlet element 402.

[0233] In some of the embodiments, the first coating material inlet element 403 is a first coating material inlet.

[0234] The first flow guiding element 404 is a hollow structure and has a circular cross section.

[0235] The size of the first flow guide element 404 matches the size of the first coating element 401. Generally, the outer diameter of the first flow guide element 404 is smaller than the outer diameter and outer axial dimension of the first coating element 401, and the axial dimension of the first flow guide element 404 is smaller than the outer axial dimension of the first coating element 401.

[0236] The size of the first guide element 404 matches the size of the first paint inlet element 403. Generally, the inner diameter of the first guide element 404 is equal to the diameter of the first paint inlet element 403, and the axial dimension of the first guide element 404 is greater than the axial dimension of the first paint inlet element 403 (such as depth).

[0237] In some embodiments, the first flow guiding element 404 is fixedly connected to the first coating element 401 , including but not limited to welding. For example, the first flow guiding element 404 and the first coating element 401 are integrally formed.

[0238] In some of the embodiments, the first guiding element 404 is made of stainless steel.

[0239] In some of the embodiments, the first drainage element 404 is a first drainage tube.

[0240] like Figure 7a , Figure 7bAs shown, the second coating unit 500 includes a second coating element 501, a plurality of second coating outlet elements 502, a second coating inlet element 503 and a second drainage element 504. The second coating element 501 is arranged at the second end of the main unit 100; the plurality of second coating outlet elements 502 are arranged at the top of the second coating element 501 along the axial direction of the second coating element 501, and are distributed and communicated with the inner side of the second coating element 501, and are used to spray out the coating material to apply the second coating layer to the film; the second coating inlet element 503 is arranged at the bottom end of the second coating element 501, and is communicated with the inner side of the second coating element 501; the second drainage element 504 is connected to the second coating element 501, and is respectively communicated with the second coating inlet element 503 and the coating material supply device, and is used to convey the coating material to the second coating element 501.

[0241] Specifically, the second coating element 501 is disposed between two second supporting elements 113 and is respectively connected to the two second supporting elements 113 .

[0242] The second coating element 501 is a hollow structure and has an arc-shaped cross section.

[0243] The size of the second coating element 501 matches the size of the second supporting element 113. Generally, the outer diameter of the second coating element 501 is greater than the length / height of the second supporting element 113.

[0244] The outer axial dimension of the second coating element 501 is equal to the distance between the two second supporting elements 113 .

[0245] In some embodiments, the second coating element 501 is fixedly connected to the second supporting element 113, including but not limited to welding.

[0246] In some of the embodiments, the second coating element 501 is made of stainless steel.

[0247] In some of the embodiments, the second coating element 501 is a second coating roller.

[0248] The cross section of the second coating material outlet element 502 is circular.

[0249] The size of the second coating outlet element 502 matches the size of the second coating element 501. Generally, the diameter of the second coating outlet element 502 is smaller than the inner diameter and the inner axial dimension of the second coating element 501, and the axial dimension (such as depth) of the second coating outlet element 502 is equal to the inner wall thickness of the second coating element 501.

[0250] In some embodiments, the number of the second coating material outlet elements 502 is ten.

[0251] In some of the embodiments, the second coating material outlet element 502 is a second coating material outlet.

[0252] The cross section of the second coating material inlet member 503 is circular.

[0253] The size of the second coating inlet element 503 matches the size of the second coating element 501. Generally, the diameter of the second coating inlet element 503 is smaller than the inner diameter and the inner axial dimension of the second coating element 501, and the axial dimension (such as depth) of the second coating inlet element 503 is equal to the inner wall thickness of the second coating element 501.

[0254] The size of the second coating material inlet element 503 matches the size of the second coating material outlet element 502. Generally, the diameter of the second coating material inlet element 503 is larger than the diameter of the second coating material outlet element 502.

[0255] In some of the embodiments, the second coating material inlet element 503 is a second coating material inlet.

[0256] The second flow guiding element 504 is a hollow structure and has a circular cross section.

[0257] The size of the second flow guide element 504 matches the size of the second coating element 501. Generally, the outer diameter of the second flow guide element 504 is smaller than the outer diameter and outer axial dimension of the second coating element 501, and the axial dimension of the second flow guide element 504 is smaller than the outer axial dimension of the second coating element 501.

[0258] The size of the second guide element 504 matches the size of the second paint inlet element 503. Generally, the inner diameter of the second guide element 504 is equal to the diameter of the second paint inlet element 503, and the axial dimension of the second guide element 504 is greater than the axial dimension of the second paint inlet element 503 (such as depth).

[0259] In some embodiments, the second flow guiding element 504 is fixedly connected to the second coating element 501 , including but not limited to welding. For example, the second flow guiding element 504 and the second coating element 501 are integrally formed.

[0260] In some of the embodiments, the second guiding element 504 is made of stainless steel.

[0261] In some embodiments, the second drainage element 504 is a second drainage tube.

[0262] like Figure 8As shown, the first drying unit 600 includes a first drying element 601, a first air outlet element 602, a second air outlet element 603 and a first air inlet element 604. The first drying element 601 is arranged in the lower region of the main unit 100; the first air outlet element 602 is arranged at the bottom end of the first drying element 601, and is used for blowing out the heat flow to dry the first coating layer; the second air outlet element 603 is arranged at the top of the first drying element 601, and is connected to the first air outlet element 602; the first end of the first air inlet element 604 is connected to the top of the first drying element 601, and is connected to the second air outlet element 603, and the second end of the first air inlet element 604 extends to the outside of the main unit 100, and is connected to the airflow drying device, and is used to transport the heat flow to the first air outlet element 602.

[0263] Specifically, the first drying element 601 is disposed in the lower region of the main body element 101 and connected to the main body element 101 ; the second end of the first air inlet element 604 passes through the first through-groove element 108 and is connected to the main body element 101 .

[0264] The cross section of the first drying element 601 is rectangular.

[0265] The size of the first drying element 601 matches the size of the main body element 101. Generally, the length of the first drying element 601 is less than the inner length of the main body element 101, the width of the first drying element 601 is equal to the inner width of the main body element 101, and the height of the first drying element 601 is less than the height of the lower area inside the main body element 101.

[0266] In some of the embodiments, the first drying element 601 is fixedly connected to the main element 101, including but not limited to welding.

[0267] In some of the embodiments, the first drying element 601 is made of stainless steel.

[0268] In some of the embodiments, the first drying element 601 is a first drying plate.

[0269] The cross section of the first air outlet element 602 is rectangular, and the longitudinal section of the first air outlet element 602 is trapezoidal. The length and width of the first air outlet element 602 decrease from one end to the other end.

[0270] The size of the first air outlet element 602 matches the size of the first drying element 601. Generally, the maximum length of the first air outlet element 602 is smaller than the length of the first drying element 601, the maximum width of the first air outlet element 602 is smaller than the width of the first drying element 601, and the height of the first air outlet element 602 is smaller than the height of the first drying element 601.

[0271] In some embodiments, the first air outlet element 602 is a first air outlet.

[0272] The cross section of the second air outlet element 603 is circular.

[0273] The size of the second air outlet element 603 matches the size of the first drying element 601. Generally, the diameter of the second air outlet element 603 is smaller than the length and width of the first drying element 601, and the axial size (such as depth) of the second air outlet element 603 is smaller than the height of the first drying element 601.

[0274] The size of the second air outlet element 603 matches the size of the first air outlet element 602. Generally, the diameter of the second air outlet element 603 is smaller than the minimum length and minimum width of the first air outlet element 602, and the axial size (such as depth) of the second air outlet element 603 is smaller than the height of the first air outlet element 602.

[0275] The axial dimension (such as depth) of the second air outlet element 603 is equal to the thickness of the top wall formed by the first drying element 601 and the first air outlet element 602 .

[0276] In some of the embodiments, the second air outlet element 603 is a first air outlet.

[0277] The cross section of the first air inlet element 604 is in the shape of a circular ring.

[0278] The size of the first air inlet element 604 matches the size of the first drying element 601. Generally, the outer diameter of the first air inlet element 604 is smaller than the length / width of the first drying element 601.

[0279] The size of the first air inlet element 604 matches the size of the second air outlet element 603. Generally, the inner diameter of the first air inlet element 604 is equal to the diameter of the second air outlet element 603, and the axial dimension of the first air inlet element 604 is greater than the axial dimension (such as depth) of the second air outlet element 603.

[0280] The size of the first air inlet element 604 matches the size of the first slot element 108. Generally, the outer diameter of the first air inlet element 604 is equal to the diameter of the first slot element 108, and the axial dimension of the first air inlet element 604 is greater than the axial dimension of the first slot element 108 (such as depth).

[0281] In some of the embodiments, the first air inlet element 604 is fixedly connected to the first drying element 601 and the main body element 101 respectively, including but not limited to welding.

[0282] In some of the embodiments, the first air inlet element 604 is made of stainless steel.

[0283] In some of the embodiments, the first air inlet element 604 is a first air inlet pipe.

[0284] like Figure 9a , Figure 9b As shown, the second drying unit 700 includes a second drying element 701, a third air outlet element 702, a fourth air outlet element 703 and a second air inlet element 704. The second drying element 701 is arranged in the upper region of the main unit 100; the third air outlet element 702 is arranged at the top of the second drying element 701, and is used to blow out the heat flow to dry the second coating; the fourth air outlet element 703 is arranged at the bottom end of the second drying element 701, and is connected to the third air outlet element 702; the first end of the second air inlet element 704 is connected to the bottom end of the second drying element 701, and is connected to the fourth air outlet element 703, and the second end of the second air inlet element 704 extends to the outside of the main unit 100, and is connected to the airflow drying device, and is used to transport the heat flow to the fourth air outlet element 703.

[0285] Specifically, the second drying element 701 is arranged in the upper area of ​​the main element 101 and connected to the main element 101; the second end of the second air inlet element 704 passes through the second through-groove element 109 or the third through-groove element 110 and is connected to the main element 101.

[0286] The cross section of the second drying element 701 is rectangular.

[0287] The size of the second drying element 701 matches the size of the main element 101. Generally, the length of the second drying element 701 is less than the inner length of the main element 101, the width of the second drying element 701 is equal to the inner width of the main element 101, and the height of the second drying element 701 is less than the height of the lower area inside the main element 101.

[0288] In some of the embodiments, the second drying element 701 is fixedly connected to the main element 101, including but not limited to welding.

[0289] In some of the embodiments, the second drying element 701 is made of stainless steel.

[0290] In some of the embodiments, the second drying element 701 is a second drying plate.

[0291] The cross section of the third air outlet element 702 is rectangular, and the longitudinal section of the third air outlet element 702 is trapezoidal. The length and width of the third air outlet element 702 decrease from one end to the other end.

[0292] The size of the third air outlet element 702 matches the size of the second drying element 701. Generally, the maximum length of the third air outlet element 702 is smaller than the length of the second drying element 701, the maximum width of the third air outlet element 702 is smaller than the width of the second drying element 701, and the height of the third air outlet element 702 is smaller than the height of the second drying element 701.

[0293] In some of the embodiments, the third air outlet element 702 is a second air outlet.

[0294] The cross section of the fourth air outlet element 703 is circular.

[0295] The size of the fourth air outlet element 703 matches the size of the second drying element 701. Generally, the diameter of the fourth air outlet element 703 is smaller than the length and width of the second drying element 701, and the axial size (such as depth) of the fourth air outlet element 703 is smaller than the height of the second drying element 701.

[0296] The size of the fourth air outlet element 703 matches the size of the third air outlet element 702. Generally, the diameter of the fourth air outlet element 703 is smaller than the minimum length and minimum width of the third air outlet element 702, and the axial size (such as depth) of the fourth air outlet element 703 is smaller than the height of the third air outlet element 702.

[0297] The axial dimension (such as depth) of the fourth air outlet element 703 is equal to the thickness of the bottom wall formed by the second drying element 701 and the third air outlet element 702 .

[0298] In some of the embodiments, the fourth air outlet element 703 is a second air outlet.

[0299] The cross section of the second air inlet element 704 is in the shape of a circular ring.

[0300] The size of the second air inlet element 704 matches the size of the second drying element 701. Generally, the outer diameter of the second air inlet element 704 is smaller than the length / width of the second drying element 701.

[0301] The size of the second air inlet element 704 matches the size of the fourth air outlet element 703. Generally, the inner diameter of the second air inlet element 704 is equal to the diameter of the fourth air outlet element 703, and the axial dimension of the second air inlet element 704 is greater than the axial dimension (such as depth) of the fourth air outlet element 703.

[0302] The size of the second air inlet element 704 matches the size of the second through-groove element 109 (third through-groove element 110). Generally, the outer diameter of the second air inlet element 704 is equal to the diameter of the second through-groove element 109 (third through-groove element 110), and the axial dimension of the second air inlet element 704 is greater than the axial dimension (such as depth) of the second through-groove element 109 (third through-groove element 110).

[0303] In some of the embodiments, the second air inlet element 704 is fixedly connected to the second drying element 701 and the main body element 101 respectively, including but not limited to welding.

[0304] In some of the embodiments, the second air inlet element 704 is made of stainless steel.

[0305] In some of the embodiments, the second air inlet element 704 is a second air inlet pipe.

[0306] like Fig.10 As shown, the negative pressure unit 800 includes a negative pressure element 801 and a negative pressure input element 802. The negative pressure element 801 is disposed at the second end of the main unit 100 and is used to adsorb the film; the negative pressure input element 802 is disposed through the negative pressure element 801 and is connected to the negative pressure device, and is used to deliver the negative pressure airflow to the negative pressure element 801.

[0307] Specifically, the negative pressure element 801 is disposed between the two second supporting elements 113 and is connected to the two second supporting elements 113 respectively.

[0308] The negative pressure element 801 is a rectangular column with a hollow bottom.

[0309] The cross section of the negative pressure element 801 is a rectangular frame.

[0310] The size of the negative pressure element 801 matches the size of the second support element 113. Generally, the outer width of the negative pressure element 801 is smaller than the length of the second support element 113, and the outer height of the negative pressure element 801 is smaller than the height of the second support element 113.

[0311] The outer length of the negative pressure element 801 is equal to the distance between the two second supporting elements 113 .

[0312] In some of the embodiments, the negative pressure element 801 is fixedly connected to the second supporting element 113 , including but not limited to welding.

[0313] In some of the embodiments, the negative pressure element 801 is made of stainless steel.

[0314] In some of the embodiments, the negative pressure element 801 is a frame.

[0315] The cross section of the negative pressure input element 802 is circular.

[0316] The size of the negative pressure input element 802 matches the size of the negative pressure element 801. Generally, the diameter of the negative pressure input element 802 is smaller than the inner length / inner width of the negative pressure element 801, and the axial size (such as depth) of the negative pressure input element 802 is equal to the top wall thickness of the negative pressure element 801.

[0317] In some of the embodiments, the negative pressure input element 802 is a negative pressure input tank.

[0318] like Fig.11a , Fig.11b As shown, the second material roll unit 900 includes a second material roll element 901, a first clamping element 902 and a locking element 903. The second material roll element 901 is detachably disposed at the first end of the support unit 200 for winding the coated film; the first clamping element 902 is disposed at the end of the second material roll element 901 and is detachably connected to the driving unit 1000; the locking element 903 is rotatably disposed on the second material roll element 901 and is in contact with the driving unit 1000, for stabilizing the connection between the first clamping element 902 and the driving unit 1000.

[0319] Specifically, the second coiling element 901 is detachably disposed on the top ends of the two third supporting elements 202 .

[0320] The cross section of the second coiling element 901 is circular. Specifically, the second coiling element 901 includes a roll and thread teeth. The roll is detachably disposed on the top of the two third supporting elements 202; the thread teeth are disposed on the roll and are threadedly connected to the locking element 903.

[0321] The size of the roller matches the size of the third support element 202. Generally, the diameter of the roller is smaller than the length and height of the third support element 202, and the axial size of the roller is larger than the distance between the two third support elements 202.

[0322] The size of the thread teeth matches the size of the winding roller. Generally, the axial dimension of the thread teeth is smaller than the axial dimension of the winding roller.

[0323] In some of the embodiments, the second coil element 901 is made of stainless steel.

[0324] In some of the embodiments, the second web element 901 is a second web roller.

[0325] The cross section of the first clamping element 902 is convex. The first clamping element 902 includes an outer clamping slot and an inner clamping slot. The outer clamping slot is arranged at the end of the roller and is detachably connected to the driving unit 1000; the inner clamping slot is arranged on the surface of the roller and is connected to the outer clamping slot and is detachably connected to the driving unit 1000.

[0326] The size of the outer slot matches the size of the roll. Generally, the length of the outer slot is smaller than the diameter of the roll, the width of the outer slot is smaller than the axial dimension of the roll, and the height of the outer slot is equal to the diameter of the roll.

[0327] The size of the inner slot matches the size of the roll. Generally, the length of the inner slot is smaller than the diameter of the roll, the width of the inner slot is smaller than the axial dimension of the roll, and the height of the inner slot is equal to the diameter of the roll.

[0328] The size of the inner card slot matches the size of the outer card slot. Generally, the length of the inner card slot is greater than the length of the outer card slot, the width of the inner card slot is greater than the width of the outer card slot, and the height of the inner card slot is equal to the height of the outer card slot.

[0329] In some of the embodiments, the first clamping element 902 is a clamping slot.

[0330] The cross section of the locking element 903 is circular.

[0331] The size of the locking element 903 matches the size of the roller. Generally, the inner diameter of the locking element 903 is equal to the diameter of the roller, and the axial size of the locking element 903 is smaller than the axial size of the roller.

[0332] The size of the locking element 903 matches the size of the thread teeth. Generally, the axial size of the locking element 903 is not less than the axial size of the thread teeth.

[0333] In some of these embodiments, locking element 903 is a threaded cap.

[0334] like Fig.12 As shown, the driving unit 1000 includes a base element 1001, a driving element 1002, a limiting element 1003 and a second clamping element 1004. The base element 1001 is disposed at the first end of the supporting unit 200 and connected to the supporting unit 200; the driving element 1002 is disposed at the top of the base element 1001 and connected to the base element 1001; the limiting element 1003 is coaxially disposed with the output end of the driving element 1002; the first end of the second clamping element 1004 is connected to the limiting element 1003, and the second end of the second clamping element 1004 is detachably connected to the second coiling unit 900, so as to drive the second coiling unit 900 to rotate.

[0335] Specifically, the base element 1001 is connected to a third supporting element 202 ; the limiting element 1003 is in contact with the locking element 903 ; and the second clamping element 1004 is detachably connected to the first clamping element 902 .

[0336] The base element 1001 is a rectangular column with an arc-shaped top, and is used to adapt to the driving element 1002.

[0337] The size of the base element 1001 matches the size of the third support element 202. Generally, the length of the base element 1001 is greater than the width of the third support element 202, the width of the base element 1001 is not greater than the length of the third support element 202, and the height of the base element 1001 is less than the height of the third support element 202.

[0338] In some of the embodiments, the base element 1001 is fixedly connected to a third support element 202, including but not limited to welding.

[0339] In some of the embodiments, the base element 1001 is made of stainless steel.

[0340] In some of the embodiments, base element 1001 is a base.

[0341] In some of the embodiments, the driving element 1002 is fixedly connected to the base element 1001, including but not limited to bolt connection.

[0342] In some embodiments, the driving element 1002 is a motor, wherein the driving element 1002 is connected to an external power source and a control switch to ensure the power supply requirement during operation.

[0343] The cross section of the limiting element 1003 is circular.

[0344] The size of the limiting element 1003 matches the size of the third supporting element 202. Generally, the diameter of the limiting element 1003 is smaller than the length and height of the third supporting element 202, and the axial size of the limiting element 1003 is smaller than the width of the third supporting element 202.

[0345] The size of the limiting element 1003 matches the size of the base element 1001. Generally, the diameter of the limiting element 1003 is smaller than the width of the base element 1001, and the axial dimension of the limiting element 1003 is smaller than the length of the base element 1001.

[0346] The size of the limiting element 1003 matches the size of the locking element 903. Generally, the diameter of the limiting element 1003 is not less than the outer diameter of the locking element 903, and the axial dimension of the limiting element 1003 is less than the axial dimension of the locking element 903.

[0347] In some of the embodiments, the limiting element 1003 is fixedly connected to the driving element 1002, including but not limited to a bolt connection.

[0348] In some of the embodiments, the limiting element 1003 is a limiting block.

[0349] The cross section of the second clamping element 1004 is convex. Specifically, the second clamping element 1004 includes an outer clamping block and an inner clamping block. The first end of the outer clamping block is connected to the limiting element 1003 and is detachably connected to the outer clamping slot; the inner clamping block is connected to the second end of the outer clamping block and is detachably connected to the inner clamping slot.

[0350] The size of the outer clamping block matches the size of the limiting element 1003. Generally, the length and height of the outer clamping block (inner clamping block) are smaller than the diameter of the limiting element 1003.

[0351] The size of the outer card block matches the size of the outer card slot. Generally, the length of the outer card block is equal to the length of the outer card slot, the width of the outer card block is not less than the width of the outer card slot, and the height of the outer card block is equal to the height of the outer card slot.

[0352] The size of the inner card block matches the size of the inner card slot. Generally, the length of the inner card block is equal to the length of the inner card slot, the width of the inner card block is equal to the width of the inner card slot, and the height of the inner card block is equal to the height of the inner card slot.

[0353] The size of the inner card block matches the size of the outer card block. Generally, the length of the inner card block is greater than the length of the outer card block, the width of the inner card block is greater than the width of the outer card block, and the height of the inner card block is equal to the height of the outer card block.

[0354] In some of the embodiments, the second clamping element 1004 is fixedly connected to the limiting element 1003 , including but not limited to welding.

[0355] In some of the embodiments, the second clamping element 1004 is made of stainless steel.

[0356] In some of the embodiments, the second clamping element 1004 is a clamping block.

[0357] The method of using the utility model is as follows:

[0358] (I) Placing the first coil component 301 and the second coil component 901

[0359] Place the first coil element 301 wrapped with a film on the top of the two fourth supporting elements 203; pass the film through the fourth transmission element 207 and the first coating element 401, the first inlet element 104, the first transmission element 103 and the first drying element 601, the first outlet element 105, and then the second transmission element 112, the second coating element 501, and the negative pressure element 801; then pass through the second inlet element 106, between the two second drying elements 701, the second outlet element 107, and then the third transmission element 205 and the second The material winding element 901 is wound several times; the second material winding element 901 wound with several turns of film is placed on the top of the third supporting element 202, and the first clamping element 902 is clamped with the second clamping element 1004; the locking element 903 is twisted to make it move along the radial device of the second material winding element 901 and along the axial direction of the second material winding element 901 toward the first clamping element 902; until the first clamping element 902 and the second clamping element 1004 are covered, thereby completing the transmission connection between the second material winding element 901 and the driving element 1002.

[0360] (II) First coating operation

[0361] The coating material supply device is connected to the first guide element 404; the driving element 1002 is operated to drive the film to move through the second winding element 901; the coating material is transported to the inner side of the first coating element 401 through the first guide element 404 and the first coating inlet element 403, and is ejected through the first coating outlet element 402, thereby performing the first coating operation on the surface of the film.

[0362] (III) Primary drying operation

[0363] The airflow drying device is connected to the first air inlet element 604; the film enters the lower area of ​​the main element 101 after the first coating operation; the generated heat flow is transported to the first air outlet element 602 through the first air inlet element 604 and the second air outlet element 603, and is blown out by the first air outlet element 602, thereby drying the first coating.

[0364] (IV) Second coating operation

[0365] The coating material supply device is connected to the second drainage element 504; the negative pressure device is connected to the negative pressure input element 802; the coating material is transported to the inner side of the second coating element 501 through the second drainage element 504 and the second coating inlet element 503, and is ejected through the second coating outlet element 502, thereby applying a second coating to the surface of the film; during the process, the negative pressure airflow generated is discharged from the negative pressure element 801, thereby adsorbing the film after the second coating is applied.

[0366] (V) Secondary drying operation

[0367] The airflow drying device is connected to the second air inlet element 704; the film passes through the second coating layer and enters the upper area of ​​the main element 101; the generated heat flow is transported to the third air outlet element 702 through the second air inlet element 704 and the fourth air outlet element 703, and is blown out by the third air outlet element 702, thereby drying the first coating layer;

[0368] During the process, a third air outlet element 702 blows upward toward the film, and another third air outlet element 702 blows downward toward the film. The relative wind direction causes the film coating to be suspended in the upper area of ​​the main element 101. Among them, the wind pressure generated downward is slightly greater than the wind pressure generated upward, so that the film runs stably, thereby drying the second coating.

[0369] (VI) Paper collection

[0370] After the secondary coating and secondary drying, the film is wound on the second winding element 901 through the third transmission element 205 .

[0371] The advantages of the utility model are that, by utilizing the internal upper and lower layers of the main unit, two coats of coating can be applied in one device, thus avoiding the problem of a large area occupied by a plurality of coating machines arranged in a straight line, thereby improving production efficiency; two second drying units are utilized to suspend and dry the second coat of coating, thus avoiding contact between the coating and the equipment when the second coat of coating is applied; a negative pressure unit is utilized to suspend the film to which the second coat of coating is applied, thus preventing scratches and improving the appearance quality of the film surface.

[0372] Example 2

[0373] This embodiment relates to a thin film coating system of the utility model.

[0374] like Fig.13 As shown, a thin film coating system comprises the thin film coating device A as described in Example 1, at least one coating material supply device B, at least one airflow drying device C and a negative pressure device D. The coating material supply device B is respectively connected to the first coating unit 400 and the second coating unit 500, and is used to transport the coating material to the first coating unit 400 and the second coating unit 500 respectively; the airflow drying device C is respectively connected to the first drying unit 600 and the two second drying units 700, and is used to transport heat flow to the first drying unit 600 and the two second drying units 700 respectively; the negative pressure device D is connected to the negative pressure unit 800, and is used to provide negative pressure.

[0375] Specifically, the coating material supply device B is connected to the first guide element 404 and the second guide element 504 respectively; the airflow drying device C is connected to the first air inlet element 604 and the second air inlet element 704 respectively; and the negative pressure device D is connected to the negative pressure input element 802.

[0376] In some of the embodiments, the coating material supply device B is a coating material injector.

[0377] In some of the embodiments, the airflow drying device C is an airflow dryer.

[0378] In some of the embodiments, the negative pressure device D is a partial pressure fan.

[0379] The method of using the utility model is as follows:

[0380] Connect the coating material supply device B to the first drainage element 404 and the second drainage element 504 respectively;

[0381] Connect the airflow drying device C to the first air inlet element 604 and the second air inlet element 704 respectively;

[0382] The negative pressure device D is connected to the negative pressure input element 802 .

[0383] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A thin film coating device, characterized in that: include: A main body unit (100), wherein the main body unit (100) is arranged on a horizontal plane, and the inner side of the main body unit (100) can be divided into an upper layer area and a lower layer area from top to bottom; A support unit (200), the support unit (200) being arranged at a first end of the main body unit (100); A first winding unit (300), the first winding unit (300) being detachably arranged at a first end of the supporting unit (200) and being used for winding an uncoated film; A first coating unit (400), the first coating unit (400) being arranged at the second end of the supporting unit (200) and being connected to a coating material supply device, and being used for applying a first coating layer to the film; A second coating unit (500), the second coating unit (500) is arranged at the second end of the main unit (100) and is connected to the coating material supply device, and is used to apply a second coating layer to the film; A first drying unit (600), wherein a first end of the first drying unit (600) is disposed in a lower region of the main body unit (100), and a second end of the first drying unit (600) extends to the outside of the main body unit (100) and is connected to an airflow drying device, for drying the first coating layer; Two second drying units (700), the two second drying units (700) are symmetrically arranged in the upper region of the main unit (100), and are respectively connected to the airflow drying device, and are used to suspend the film in the upper region of the main unit (100) and dry the second coating; A negative pressure unit (800), the negative pressure unit (800) being arranged at the second end of the main unit (100) and being connected to the negative pressure device and being used for adsorbing the film; a second winding unit (900), the second winding unit (900) being detachably disposed at the first end of the supporting unit (200) and located outside the first winding unit (300), and being used for winding the coated film; A driving unit (1000), wherein the driving unit (1000) is arranged at the first end of the supporting unit (200) and is detachably connected to the second coiling unit (900), and is used to drive the second coiling unit (900) to rotate.

2. The thin film coating device according to claim 1, characterized in that: The main unit (100) comprises: A main body element (101), wherein the inner side of the main body element (101) can be divided into an upper region and a lower region from top to bottom, the upper region of the main body element (101) is provided with two second drying units (700), and the lower region of the main body element (101) is provided with a first drying unit (600); a partition element (102), the partition element (102) being arranged on the inner side of the main body element (101) and connected to the main body element (101), and being used to divide the main body element (101) into an upper layer area and a lower layer area; A plurality of first transmission elements (103), the plurality of first transmission elements (103) being distributed along the length direction of the main body element (101) and arranged in the lower layer area inside the main body element (101), and being used for transmitting the film; A first inlet element (104), the first inlet element (104) being arranged at a first end of the main element (101) and being used for allowing the film to enter a lower region of the main element (101); A first outlet element (105), the first outlet element (105) being arranged at the second end of the main body element (101) and being used for allowing the film to leave the lower region of the main body element (101); a second inlet element (106), the second inlet element (106) being arranged at a second end of the main body element (101) and being used for allowing the film to enter an upper region of the main body element (101); A second outlet element (107), the second outlet element (107) being arranged at a first end of the main body element (101) and being used for allowing a thin film to be coated out of an upper region of the main body element (101); a first through-groove element (108), the first through-groove element (108) being arranged at the second end of the main body element (101) and connected to the second end of the first drying unit (600), and being used for allowing the second end of the first drying unit (600) to pass through the lower region of the main body element (101); a second through-groove element (109), the second through-groove element (109) being arranged at the second end of the main body element (101) and connected to the second end of the second drying unit (700), and being used for allowing the second end of the second drying unit (700) to pass through the upper region of the main body element (101); a third through-groove element (110), the third through-groove element (110) being arranged at the second end of the main body element (101) and connected to the second end of another second drying unit (700), and being used for allowing the second end of another second drying unit (700) to pass through the upper region of the main body element (101); Two first supporting elements (111), the two first supporting elements (111) are symmetrically arranged on both sides of the first outlet element (105) and are located outside the main body element (101); A second transmission element (112), the second transmission element (112) being rotatably disposed between the two first supporting elements (111); Two second supporting elements (113), the two second supporting elements (113) are symmetrically arranged on both sides of the second inlet element (106), and are located outside the main element (101), and are respectively connected to the main element (101), the second coating unit (500), and the negative pressure unit (800).

3. The thin film coating device according to claim 1, characterized in that: The support unit (200) comprises: A bottom plate element (201), the bottom plate element (201) being arranged at a first end of the main body unit (100); Two third supporting elements (202), the two third supporting elements (202) are symmetrically arranged at the first end of the top end of the bottom plate element (201), and are respectively detachably connected to the second coiling unit (900), and one of the third supporting elements (202) is connected to the driving unit (1000); Two fourth supporting elements (203), the two fourth supporting elements (203) are symmetrically arranged at the top of the bottom plate element (201), and are located on one side of the two third supporting elements (202), and are respectively detachably connected to the first coiling unit (300); Two fifth supporting elements (204), the two fifth supporting elements (204) are symmetrically arranged at the top of the bottom plate element (201) and located on one side of the two fourth supporting elements (203); a third transmission element (205), the third transmission element (205) being rotatably disposed between the two fifth supporting elements (204); Two sixth supporting elements (206), the two sixth supporting elements (206) are symmetrically arranged at the second end of the top end of the bottom plate element (201), are located on one side of the two fifth supporting elements (204), and are respectively connected to the first coating unit (400); A fourth transmission element (207), wherein the fourth transmission element (207) is rotatably disposed between the two sixth supporting elements (206) and is located below the first coating unit (400).

4. The thin film coating device according to claim 1, characterized in that: The first coiling unit (300) comprises: A first winding element (301), the first winding element (301) is detachably arranged at a first end of the supporting unit (200) and is used for winding an uncoated film.

5. The thin film coating device according to claim 1, characterized in that: The first coating unit (400) comprises: A first coating element (401), wherein the first coating element (401) is disposed at a second end of the supporting unit (200); A plurality of first coating outlet elements (402), which are distributed along the axial direction of the first coating element (401) at the bottom of the first coating element (401), and are respectively connected to the inner side of the first coating element (401) for spraying coating material to apply a first coating layer to the film; A first coating material inlet element (403), the first coating material inlet element (403) being disposed on the top of the first coating element (401) and being in communication with the inner side of the first coating element (401); a first guide element (404), the first guide element (404) being connected to the first coating element (401), and being respectively connected to the first coating material inlet element (403) and the coating material supply device, for conveying the coating material to the first coating element (401); and / or The second coating unit (500) comprises: A second coating element (501), the second coating element (501) being disposed at a second end of the main body unit (100); A plurality of second coating outlet elements (502), which are distributed along the axial direction of the second coating element (501) at the top end of the second coating element (501) and are distributed and connected to the inner side of the second coating element (501) for spraying coating material to apply a second coating to the film; A second coating material inlet element (503), the second coating material inlet element (503) is arranged at the bottom end of the second coating element (501) and is communicated with the inner side of the second coating element (501); A second guide element (504), the second guide element (504) is connected to the second coating element (501), and is respectively connected to the second coating inlet element (503) and the coating material supply device, and is used to transport the coating material to the second coating element (501).

6. The thin film coating device according to claim 1, characterized in that: The first drying unit (600) comprises: A first drying element (601), the first drying element (601) being arranged in a lower region of the main body unit (100); A first air outlet element (602), the first air outlet element (602) is arranged at the bottom end of the first drying element (601), and is used to blow out a hot flow to dry the first coating; A second air outlet element (603), the second air outlet element (603) is arranged at the top of the first drying element (601) and is connected to the first air outlet element (602); A first air inlet element (604), wherein a first end of the first air inlet element (604) is connected to the top end of the first drying element (601) and communicated with the second air outlet element (603), and a second end of the first air inlet element (604) extends to the outside of the main unit (100) and communicated with the airflow drying device, for conveying heat flow to the first air outlet element (602); and / or The second drying unit (700) comprises: A second drying element (701), the second drying element (701) being arranged in an upper region of the main body unit (100); A third air outlet element (702), the third air outlet element (702) being arranged at the top of the second drying element (701) and used for blowing out a hot flow to dry the second coating; a fourth air outlet element (703), the fourth air outlet element (703) being arranged at the bottom end of the second drying element (701) and being connected to the third air outlet element (702); A second air inlet element (704), wherein a first end of the second air inlet element (704) is connected to a bottom end of the second drying element (701) and is communicated with the fourth air outlet element (703); a second end of the second air inlet element (704) extends to the outside of the main unit (100) and is communicated with the air flow drying device, for conveying heat flow to the fourth air outlet element (703).

7. The thin film coating device according to claim 1, characterized in that: The negative pressure unit (800) comprises: A negative pressure element (801), the negative pressure element (801) being arranged at the second end of the main unit (100) and being used for adsorbing the film; A negative pressure input element (802), wherein the negative pressure input element (802) is disposed through the negative pressure element (801) and is connected to the negative pressure device, and is used to deliver the negative pressure airflow to the negative pressure element (801).

8. The thin film coating device according to claim 1, characterized in that: The second coiling unit (900) comprises: a second winding element (901), the second winding element (901) being detachably disposed at a first end of the supporting unit (200) and being used for winding the coated film; A first clamping element (902), the first clamping element (902) being arranged at an end of the second coiling element (901) and being detachably connected to the driving unit (1000); A locking element (903), wherein the locking element (903) is rotatably disposed on the second coiling element (901) and is in contact with the driving unit (1000), and is used to stabilize the connection between the first clamping element (902) and the driving unit (1000).

9. The thin film coating device according to claim 1, characterized in that: The driving unit (1000) comprises: A base element (1001), the base element (1001) being arranged at a first end of the support unit (200) and connected to the support unit (200); A driving element (1002), the driving element (1002) being arranged at the top end of the base element (1001) and connected to the base element (1001); A limiting element (1003), wherein the limiting element (1003) is coaxially arranged with an output end of the driving element (1002); A second clamping element (1004), wherein a first end of the second clamping element (1004) is connected to the limiting element (1003), and a second end of the second clamping element (1004) is detachably connected to the second winding unit (900) for driving the second winding unit (900) to rotate.

10. A thin film coating system, characterized in that: include: The thin film coating device according to any one of claims 1 to 9; at least one coating material supply device, the coating material supply device being connected to the first coating unit (400) and the second coating unit (500) respectively, and being used to transport coating material to the first coating unit (400) and the second coating unit (500) respectively; at least one airflow drying device, the airflow drying device being respectively connected to the first drying unit (600) and the two second drying units (700), and being used for respectively transmitting heat flow to the first drying unit (600) and the two second drying units (700); A negative pressure device is connected to the negative pressure unit (800) and is used to provide negative pressure.

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