A multi-layer composite coating apparatus

Abstract

This utility model provides a multi-layer composite coating equipment, relating to the field of multi-layer composite coating, including a frame, a first unwinding unit and a second unwinding unit disposed at the upper and lower left ends of the frame's inner cavity, a third unwinding unit disposed at the upper right end of the frame's inner cavity, a winding unit disposed at the lower right end of the frame's inner cavity, and a first composite unit and a second composite unit disposed at the upper and lower ends of the frame's inner cavity. This utility model integrates the first unwinding unit, the second unwinding unit, the third unwinding unit, the winding unit, the first composite unit, the second composite unit, the first coating unit, the second coating unit, and the drying unit into the same frame, achieving an integrated design. It allows for simultaneous continuous operation of the entire process of coating, laminating, drying, and winding, reducing floor space and energy consumption, while also improving the efficiency and quality of multi-layer coating and laminating.

Description

Technical Field

[0001] This utility model belongs to the field of multilayer composite coating, specifically a multilayer composite coating equipment. Background Technology

[0002] Multilayer composite coating technology is widely used in optical films, explosion-proof films, packaging materials and other fields. It is used to coat multiple functional coatings such as barrier layers, adhesive layers, hardening layers and so on on a substrate and achieve composite coating to improve its performance.

[0003] Currently, traditional multilayer coating processes typically employ single-layer coating and multiple lamination methods. First, a functional coating layer, such as an adhesive layer, is coated onto the substrate. After coating, the substrate is dried and rolled up. Then, the coated substrate is laminated with other functional films a second time using a laminating machine to achieve multilayer coating operations.

[0004] However, traditional multilayer coating processes require multiple coating, lamination, and unwinding operations, resulting in large equipment footprints, high energy consumption, reduced lamination efficiency, and uneven curing of the adhesive layer due to changes in ambient temperature and humidity, thus reducing the quality of multilayer composite coatings.

[0005] In summary, this utility model provides a multilayer composite coating device to solve the above-mentioned problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A multi-layer composite coating equipment, comprising,

[0008] The frame comprises a first unwinding unit and a second unwinding unit disposed at the upper and lower left ends of the frame cavity, a third unwinding unit disposed at the upper right end of the frame cavity, a winding unit disposed at the lower right end of the frame cavity, a first composite unit and a second composite unit disposed at the upper and lower ends of the frame cavity, a first coating unit and a second coating unit disposed at the upper and lower ends of the frame cavity and located on one side of the first composite unit and the second composite unit, and a drying unit disposed in the frame cavity.

[0009] Furthermore, in this utility model, the first unwinding unit, the second unwinding unit, and the third unwinding unit each include an air shaft movably connected to the inner cavity of the frame, a substrate roll sleeved on the surface of the air shaft, and a guide roller disposed on one side of the substrate roll and movably connected to the inner cavity of the frame via a bearing.

[0010] Furthermore, in this utility model, both the first composite unit and the second composite unit include a composite roller movably connected to the inner cavity of the frame, a composite pressure roller movably connected to the inner cavity of the frame and located on one side of the composite roller, and a cylinder disposed on one side of the composite pressure roller.

[0011] Furthermore, in this invention, the first coating unit and the second coating unit include a limiting roller movably connected to the inner cavity of the frame, and a coating head disposed on one side of the limiting roller.

[0012] Furthermore, in this utility model, the winding unit includes an air shaft movably connected to the inner cavity of the frame, a winding roller sleeved on the surface of the air shaft, an electric push rod disposed at the upper end of the inner cavity of the frame, a connecting frame fixedly connected to the bottom of the electric push rod, and a tensioning wheel movably connected to the inner cavity of the connecting frame and located on one side of the winding roller.

[0013] Furthermore, in this utility model, the drying unit includes an oven fixedly connected to the inner cavity of the frame, a connecting roller movably connected to the inner cavity of the oven, through slots opened on both sides of the drying unit, infrared irradiation lamps disposed at the top and bottom of the inner cavity of the oven, a fan fixedly connected to the front of the frame and whose air outlet is connected to the oven, and a heating pipe connected to the air inlet of the fan. The inner cavity of the heating pipe is provided with an electric heating tube, and a filter screen is threadedly connected to the upper end of the inner cavity of the heating pipe.

[0014] Beneficial effects: This utility model has the following beneficial effects:

[0015] This utility model integrates the first unwinding unit, the second unwinding unit, the third unwinding unit, the winding unit, the first laminating unit, the second laminating unit, the first coating unit, the second coating unit, and the drying unit into the same frame, achieving an integrated design. It can simultaneously perform continuous operation of the entire process of coating, laminating, drying, and winding, which not only reduces the floor space and energy consumption, but also improves the efficiency and quality of multi-layer coating and laminating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a front view cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a cross-sectional structural diagram of the drying unit of this utility model.

[0019] In the picture:

[0020] 100. Frame; 200. First unwinding unit; 300. Second unwinding unit; 400. Third unwinding unit; 500. Rewinding unit; 600. First composite unit; 700. Second composite unit; 800. First coating unit; 900. Second coating unit; 110. Drying unit; 111. Oven; 112. Connecting roller; 113. Through groove; 114. Infrared irradiation lamp; 115. Fan; 116. Heating tube. Detailed Implementation

[0021] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0022] Example 1

[0023] like Figure 1-3 The image shown is the first embodiment of this utility model, which provides a multilayer composite coating device, including:

[0024] The frame 100 includes a first unwinding unit 200 and a second unwinding unit 300 located at the upper and lower left sides of the inner cavity of the frame 100, a third unwinding unit 400 located at the upper right side of the inner cavity of the frame 100, a winding unit 500 located at the lower right side of the inner cavity of the frame 100, a first composite unit 600 and a second composite unit 700 located at the upper and lower ends of the inner cavity of the frame 100, a first coating unit 800 and a second coating unit 900 located at the upper and lower ends of the inner cavity of the frame 100 and located on one side of the first composite unit 600 and the second composite unit 700, and a drying unit 110 located in the inner cavity of the frame 100.

[0025] like Figure 1-3As shown, through the first unwinding unit 200, the second unwinding unit 300, the third unwinding unit 400, and simultaneous unwinding of three substrates, and through the cooperation of the first coating unit 800 and the second coating unit 900, coating operations can be performed on the substrates simultaneously. Through the cooperation of the first composite unit 600 and the second composite unit 700, multi-layer substrate composite operations can be realized, and the drying unit 110 can dry the multi-layer composite material in a timely manner, thereby ensuring the composite quality. The first unwinding unit 200, the second unwinding unit 300, the third unwinding unit 400, and the rewind sheet... Unit 500, first composite unit 600, second composite unit 700, first coating unit 800, second coating unit 900, and drying unit 110 are integrated into the same frame 100, achieving an integrated design. By enabling simultaneous continuous operation of the entire process of coating, laminating, drying, and winding, it not only reduces the floor space and energy consumption but also reduces the time the product is in contact with the external environment. By reducing the contact time with the external environment, it prevents uneven curing of the adhesive layer due to changes in ambient temperature and humidity, thereby improving the efficiency and quality of multilayer coating and lamination.

[0026] Example 2

[0027] Reference Figure 1 and 2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0028] In this embodiment, the first unwinding unit 200, the second unwinding unit 300 and the third unwinding unit 400 each include an air shaft movably connected to the inner cavity of the frame 100, a substrate roll sleeved on the surface of the air shaft, and a guide roller disposed on one side of the substrate roll and movably connected to the inner cavity of the frame 100 through a bearing.

[0029] Both the first composite unit 600 and the second composite unit 700 include a composite roller movably connected to the inner cavity of the frame 100, a composite pressure roller movably connected to the inner cavity of the frame 100 and located on one side of the composite roller, and a cylinder disposed on one side of the composite pressure roller.

[0030] The first coating unit 800 and the second coating unit 900 include a limiting roller movably connected to the inner cavity of the frame 100, and a coating head disposed on one side of the limiting roller.

[0031] like Figure 1 and 2As shown, in the first unwinding unit 200, the second unwinding unit 300, and the third unwinding unit 400, the substrate roll can be secured by the air expansion shaft, and the guide roller 203 can adjust the angle of the substrate to ensure that it enters the coating unit with a preset tension and trajectory. The surface of the guide roller 203 is plated with hard chrome to reduce friction damage. In the first composite unit 600 and the second composite unit 700, the coated substrate and another substrate are combined between the composite roller and the composite pressure roller. The cylinder pushes the composite pressure roller to press the substrate, and the pressure can be adjusted according to the material characteristics to achieve the composite operation of the substrate. In the first coating unit 800 and the second coating unit 900, the substrate enters the coating area of ​​the coating head 802 after being adjusted by the limiting roller 801. The coating head 802 can coat the functional coating on the surface of the substrate by slit extrusion or spraying to achieve the coating operation of the substrate.

[0032] Example 3

[0033] Reference Figure 1-3 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0034] In this embodiment, the winding unit 500 includes an air shaft movably connected to the inner cavity of the frame 100, a winding roller sleeved on the surface of the air shaft, an electric push rod disposed at the upper end of the inner cavity of the frame 100, a connecting frame fixedly connected to the bottom of the electric push rod, and a tensioning wheel movably connected to the inner cavity of the connecting frame and located on one side of the winding roller.

[0035] The drying unit 110 includes an oven 111 fixedly connected to the inner cavity of the frame 100, a connecting roller 112 movably connected to the inner cavity of the oven 111, a through groove 113 opened on both sides of the drying unit 110, infrared irradiation lamps 114 set at the top and bottom of the inner cavity of the oven 111, a fan 115 fixedly connected to the front of the frame 100 and whose air outlet is connected to the oven 111, and a heating pipe 116 connected to the air inlet of the fan 115. The inner cavity of the heating pipe 116 is provided with an electric heating tube, and a filter screen is threadedly connected to the upper end of the inner cavity of the heating pipe 116.

[0036] like Figure 1-3As shown, the connecting frame is driven to press down according to the set tension value by an electric push rod, which causes the connecting frame to move the tension wheel and the finished product on its surface, thereby adjusting the conveying path. The surface of the tension wheel is covered with a silicone layer to reduce indentations on the surface of the finished material. By adjusting the finished product conveying path, the tension of the finished product is kept constant during the conveying process, ensuring the quality of the finished product being wound by the subsequent winding roller. The finished material enters the drying oven 111 through the through groove 113, where the connecting roller 112 limits the finished material. At this time, the infrared irradiation lamp 114 emits infrared rays to directly heat the surface of the material. The fan 115 draws in external air to the heating tube 116 for heating. The heated air is then transmitted to the inside of the drying oven 111 and blows on the surface of the material, accelerating the evaporation of solvents, thereby achieving the drying operation of the finished material and ensuring the quality of the finished product.

[0037] In operation, the substrate from the substrate roll on the air expansion shaft of the first unwinding unit 200 is first introduced into the first coating unit 800 via guide rollers. Simultaneously, the third unwinding unit 400 unwinds the second substrate, which, after adjustment by guide rollers, enters the first composite unit 600. The second unwinding unit 300 unwinds the third substrate, which, after adjustment by guide rollers, enters the second coating unit 900. The substrate unwound by the first unwinding unit 200 is then coated by the coating head of the first coating unit 800 and conveyed to the first composite unit 600. The coated substrate and the substrate from the third unwinding unit 400 are pressed together between the composite rollers and composite pressure rollers of the first composite unit 600. During the pressing process, a cylinder provides pressure. After pressing, a double-layer structure is formed, which is then conveyed to the second composite unit 700. Simultaneously, the third unwinding unit... When the substrate of Yuan 400 passes through the second coating unit 900, the coating head of the second coating unit 900 will coat the substrate. After coating, it is conveyed to the second composite unit 700. After coating, the substrate of the third unwinding unit 400 will be laminated with the double-layer structure in the second composite unit 700 to form the final product. Then the final product will be conveyed to the drying unit 110. The infrared irradiation lamp 114 in the drying unit 110 will rapidly heat the product, and the fan 115 will work with the heating tube 116 to heat the drawn air to generate hot air, which will be blown onto the surface of the substrate to remove the solvent, thereby achieving drying and completing the lamination operation. Finally, the tensioning wheel 505 will be driven by the electric push rod 503 in the winding unit 500 to adjust the winding tension, and the air expansion shaft 501 will work with the winding roller 502 to achieve stable winding of the finished product.

[0038] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0039] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A multi-layer composite coating apparatus, characterized by: include, The frame (100), a first unwinding unit (200) and a second unwinding unit (300) disposed on the upper and lower left sides of the inner cavity of the frame (100), a third unwinding unit (400) disposed on the upper right side of the inner cavity of the frame (100), a winding unit (500) disposed on the lower right side of the inner cavity of the frame (100), a first composite unit (600) and a second composite unit (700) disposed on the upper and lower sides of the inner cavity of the frame (100), a first coating unit (800) and a second coating unit (900) disposed on the upper and lower sides of the inner cavity of the frame (100) and located on one side of the first composite unit (600) and the second composite unit (700), and a drying unit (110) disposed in the inner cavity of the frame (100).

2. The multilayer composite coating equipment as described in claim 1, characterized in that: The first unwinding unit (200), the second unwinding unit (300) and the third unwinding unit (400) each include an air shaft movably connected to the inner cavity of the frame (100), a substrate roll sleeved on the surface of the air shaft, and a guide roller disposed on one side of the substrate roll and movably connected to the inner cavity of the frame (100) through a bearing.

3. The multi-layer composite coating apparatus of claim 1, wherein: The first composite unit (600) and the second composite unit (700) each include a composite roller movably connected to the inner cavity of the frame (100), a composite pressure roller movably connected to the inner cavity of the frame (100) and located on one side of the composite roller, and a cylinder disposed on one side of the composite pressure roller.

4. The multi-layer composite coating apparatus of claim 1, wherein: The first coating unit (800) and the second coating unit (900) include a limiting roller movably connected to the inner cavity of the frame (100) and a coating head disposed on one side of the limiting roller.

5. The multi-layer composite coating apparatus of claim 1, wherein: The winding unit (500) includes an air shaft movably connected to the inner cavity of the frame (100), a winding roller sleeved on the surface of the air shaft, an electric push rod disposed at the upper end of the inner cavity of the frame (100), a connecting frame fixedly connected to the bottom of the electric push rod, and a tensioning wheel movably connected to the inner cavity of the connecting frame and located on one side of the winding roller.

6. The multi-layer composite coating apparatus of claim 1, wherein: The drying unit (110) includes an oven (111) fixedly connected to the inner cavity of the frame (100), a connecting roller (112) movably connected to the inner cavity of the oven (111), through slots (113) opened on both sides of the drying unit (110), infrared irradiation lamps (114) provided at the top and bottom of the inner cavity of the oven (111), a fan (115) fixedly connected to the front of the frame (100) and whose air outlet is connected to the oven (111), and a heating tube (116) connected to the air inlet of the fan (115). The inner cavity of the heating tube (116) is provided with an electric heating tube, and the upper end of the inner cavity of the heating tube (116) is threadedly connected with a filter screen.

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