Coating and drying integrated device and coating equipment

Abstract

The utility model discloses a coating and drying integrated device and coating equipment, a base material with a transfer film enters between a first adsorption roller and a film stripping roller, the transfer film is stripped, the first adsorption roller drives the base material to rotate towards a coating die head, and the coating die head coats the base material; the first adsorption roller continues to drive the coated part of the base material to rotate towards the heating assembly, the heating assembly dries the part, with the coating, of the base material, coating and drying of the base material are integrated through the device, the heating assembly directly dries the base material, long-time preheating is not needed, the response efficiency is high, and the production efficiency is high. The step of air heating is omitted, the energy utilization rate is high, the drying efficiency is high, a large-size drying oven does not need to be arranged, and the occupied space is small.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen fuel cell membrane electrode coating, in particular to a coating and drying integrated device and coating equipment. Background Art

[0002] During the production process of fuel cell CCM membrane electrode coating, a conventional oven is used to dry the catalyst coatings on the anode and cathode. However, the existing oven drying method has the following disadvantages: low response efficiency, the conventional oven mostly uses the hot air circulation method to dry the coating, the startup time of the oven to reach the heating temperature is long, and it is difficult to adjust the temperature during heating and drying, and the oven response efficiency is slow; low energy utilization rate, energy conversion, converting electrical energy into the heat energy of the drying gas, and then the heat energy is conducted to the coating through heat convection, resulting in large losses during the energy transfer process; large space required, with the increase of the coating speed and a certain coating drying time, to meet the complete drying of the coating, the length of the oven needs to be increased, and the space occupied by the oven increases; low drying efficiency, the conventional oven heats the drying air, and the heat energy in the drying air is conducted to the object to be dried through air convection to evaporate the liquid, and this drying method has low efficiency. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a coating and drying integrated device, which can solve the problems of low response efficiency, low energy utilization rate, large space required, and low drying efficiency of the existing oven drying method.

[0004] The technical solution adopted by the utility model to solve its technical problems is: on the one hand, a coating and drying integrated device is provided, including:

[0005] A first adsorption roller, the first adsorption roller includes an input end and an output end;

[0006] A film stripping roller, which is located at the input end, the film stripping roller rotates in the opposite direction to the first adsorption roller, and the film stripping roller is used to strip the transfer film on the substrate;

[0007] A coating die head, the coating die head is used to coat the substrate;

[0008] A heating component, the heating component is closer to the output end than the coating die head, and the film stripping roller, the coating die head and the heating component are arranged in sequence along the rotation direction of the first adsorption roller.

[0009] As a further improvement of the above technical solution, it further includes:

[0010] A second adsorption roller, the second adsorption roller being opposite to and disposed with a gap from the first adsorption roller, and the rotation directions of the two being the same; there are two heating components, and the two heating components are respectively located on the circumferences of the second adsorption roller and the first adsorption roller;

[0011] An air floatation roller, which is located between the first adsorption roller and the second adsorption roller, the rotation direction of the air floatation roller being opposite to that of the first adsorption roller, and the air floatation roller and the heating component close to the second adsorption roller being arranged in sequence along the rotation direction of the second adsorption roller.

[0012] As a further improvement of the above technical solution, it further includes an output roller, which is located on the side of the second adsorption roller away from the air floatation roller, the rotation direction of the output roller being opposite to that of the second adsorption roller, and the heating component close to the second adsorption roller and the output roller being arranged in sequence along the rotation direction of the second adsorption roller.

[0013] As a further improvement of the above technical solution, both the output roller and the film stripping roller are rubber rollers.

[0014] As a further improvement of the above technical solution, the heating component includes three heaters, and the three heaters are evenly arranged along the rotation direction of the first adsorption roller.

[0015] As a further improvement of the above technical solution, the heater is a laser heater or an infrared heater.

[0016] As a further improvement of the above technical solution, both the first adsorption roller and the second adsorption roller include a roller surface and an inner shaft, the roller surface being fixedly sleeved on the outer wall of the inner shaft, and a plurality of adsorption holes being provided on the roller surface;

[0017] One end of the inner shaft is provided with a first communication hole and a second communication hole, the first communication hole and the second communication hole being communicated, the first communication hole being arranged along the axial direction of the inner shaft, the second communication hole being arranged along the radial direction of the inner shaft, the first communication hole being connected with an air rotary joint, the second communication hole and the roller surface being connected with a vacuum tube, and the vacuum tube being communicated with each of the adsorption holes.

[0018] As a further improvement of the above technical solution, a vacuum deflector is connected between the roller surface and the vacuum tube.

[0019] On the other hand, a coating device is further provided, including a driving component and the aforementioned coating and drying integrated device, the driving component being used to provide driving force to the coating and drying integrated device.

[0020] As a further improvement of the above technical solution, an input device and an output device are further included. The input device is used to convey a substrate with a transfer film to the coating and drying integrated device, and the output device is used to receive the substrate that has been coated and dried by the coating and drying integrated device.

[0021] The beneficial effects of the present utility model are as follows: The substrate with the transfer film enters between the first adsorption roller and the film stripping roller, and the transfer film is stripped off. The first adsorption roller drives the substrate to rotate towards the coating die head, and the coating die head coats the substrate. The first adsorption roller continues to drive the coated part of the substrate to rotate towards the heating component, and the heating component dries the part of the substrate with a coating. This device realizes the integration of coating and drying of the substrate. The heating component directly dries the substrate, without the need for long-term preheating, with high response efficiency, eliminating the step of heating the air, high energy utilization rate and high drying efficiency, without the need to set up a large-volume oven, and occupying a small space. Description of the Drawings

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0023] Figure 1 It is a schematic structural diagram of the coating and drying integrated device provided by the preferred embodiment of the present utility model;

[0024] Figure 2 It is an exploded schematic diagram of the coating and drying integrated device provided by the preferred embodiment of the present utility model.

[0025] Reference numerals: 1, first adsorption roller; 2, film stripping roller; 3, coating die head; 4, heating component; 5, substrate; 6, transfer film; 7, second adsorption roller; 8, air flotation roller; 9, output roller;

[0026] 11, input end; 12, output end; 13, roller surface; 14, inner shaft; 41, heater;

[0027] 131, adsorption hole; 141, first communication hole; 142, second communication hole; 143, air rotary joint; 144, vacuum tube; 145, vacuum guide plate; 146, pedestal bearing. Detailed Embodiments

[0028] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with embodiments and drawings to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all connection / connection relationships involved in the patent do not simply refer to direct connection of components, but refer to more optimal connection structures that can be formed by adding or reducing connection accessories according to specific implementation situations. For example, fixed connection / fixed installation can be selected from screw connection, bolt connection, pin connection, key connection, bonding, tenon-mortise connection, welding, riveting and other methods as needed. For example, detachable connection can be selected from screw connection, bolt connection, threaded connection, snap connection, tenon-mortise connection, magic tape connection and other methods as needed. Each technical feature in the creation of the present utility model can be combined interactively on the premise of not conflicting with each other.

[0029] Please refer to Figure 1 , a preferred embodiment of the present utility model provides a coating and drying integrated device, which includes a first adsorption roller 1, a film stripping roller 2, a coating die head 3, and a heating component 4; the first adsorption roller 1 includes an input end 11 and an output end 12; the film stripping roller 2 is located at the input end 11, and the film stripping roller 2 rotates in the opposite direction to the first adsorption roller 1. The film stripping roller 2 is used to strip the transfer film 6 on the substrate 5; the coating die head 3 is used to coat the substrate 5; the heating component 4 is closer to the output end 12 than the coating die head 3, and the film stripping roller 2, the coating die head 3 and the heating component 4 are arranged in sequence along the rotation direction of the first adsorption roller 1. The substrate 5 with the transfer film 6 enters between the first adsorption roller 1 and the film stripping roller 2, the transfer film 6 is stripped off, the first adsorption roller 1 drives the substrate 5 to rotate towards the coating die head 3, the coating die head 3 coats the substrate 5, and the first adsorption roller 1 continues to drive the coated part of the substrate 5 to rotate towards the heating component 4. The heating component 4 dries the part of the substrate 5 with a coating. This device realizes the integration of coating and drying of the substrate 5. The heating component 4 directly dries the substrate 5, without the need for long-time preheating, has a high response efficiency, eliminates the step of heating air, has a high energy utilization rate and a high drying efficiency, does not need to set up a large-volume oven, and occupies a small space.

[0030] The device further includes a second adsorption roller 7. The second adsorption roller 7 is opposite to the first adsorption roller 1 and is arranged with a gap, and their rotation directions are the same; there are two heating components 4, and the two heating components 4 are respectively located on the circumferences of the second adsorption roller 7 and the first adsorption roller 1; the substrate 5 is conveyed from the first adsorption roller 1 to the second adsorption roller 7, and the heating component 4 close to the second adsorption roller 7 performs secondary heating on the substrate 5, which is beneficial to improving the drying degree of the coating on the substrate 5.

[0031] The device further includes an air floating roller 8, which is located between the first adsorption roller 1 and the second adsorption roller 7. The rotation direction of the air floating roller 8 is opposite to that of the first adsorption roller 1. The air floating roller 8 and the heating component 4 close to the second adsorption roller 7 are arranged in sequence along the rotation direction of the second adsorption roller 7. The air floating roller 8 is used to transfer the substrate 5 from the first adsorption roller 1 to the second adsorption roller 7, and the air floating roller 8 does not directly contact the substrate 5, so as to avoid damaging the incompletely dried coating on the substrate 5.

[0032] The device further includes an output roller 9, which is located on the side of the second adsorption roller 7 away from the air floating roller 8. The rotation direction of the output roller 9 is opposite to that of the second adsorption roller 7. The heating component 4 close to the second adsorption roller 7 and the output roller 9 are arranged in sequence along the rotation direction of the second adsorption roller 7. The coated and dried substrate 5 is output between the output roller 9 and the second adsorption roller 7, and the output roller 9 can control the output direction of the substrate 5.

[0033] Both the output roller 9 and the film stripping roller 2 are rubber rollers, which have excellent acid and alkali resistance and avoid reacting with the solvents used for coating.

[0034] The heating component 4 includes three heaters 41, which are evenly arranged along the rotation direction of the first adsorption roller 1. The three heaters 41 dry the coating on the substrate 5 in sequence, which is beneficial to improving the drying degree of the coating.

[0035] The heater 41 is a laser heater or an infrared heater. The two directly heat the coating, with fast heating, uniform heating, fast response speed to temperature change, and high energy utilization rate. Among them, the laser heater has strong penetration ability and can avoid the problem of incomplete drying in the middle part of the coating. The infrared heater can select different wavebands according to different coating solvents to achieve a fast drying effect.

[0036] Please refer to Figure 2 , both the first adsorption roller 1 and the second adsorption roller 7 include a roller surface 13 and an inner shaft 14. The roller surface 13 is fixedly sleeved on the outer wall of the inner shaft 14, and a number of adsorption holes 131 are provided on the roller surface 13; one end of the inner shaft 14 is provided with a first communication hole 141 and a second communication hole 142, the first communication hole 141 and the second communication hole 142 are communicated, the first communication hole 141 is arranged along the axial direction of the inner shaft 14, the second communication hole 142 is arranged along the radial direction of the inner shaft 14, the first communication hole 141 is connected with an air rotary joint 143, the second communication hole 142 is connected with a vacuum tube 144 to the roller surface 13, and the vacuum tube 144 is communicated with each adsorption hole 131. Connect the air rotary joint 143 with a negative pressure device, so that negative pressure is generated in the adsorption holes 131, and the substrate 5 is adsorbed on the roller surface 13, which can fix the substrate 5 and prevent it from shifting during the coating process.

[0037] A vacuum diversion plate 145 is connected between the roller surface 13 and the vacuum tube 144. The vacuum manifold plate is used to supply gas centrally to a plurality of adsorption holes 131, so as to reduce the setting of the vacuum tube 144.

[0038] In this embodiment, both ends of the two inner shafts 14 are rotatably connected with pedestal bearings 146, and the pedestal bearings 146 can provide support for the inner shafts 14.

[0039] A preferred embodiment of the present invention further provides a coating device, which includes a driving component and the aforementioned coating and drying integrated device. The driving component is used to provide driving force for the coating and drying integrated device. Specifically, the driving component drives the first adsorption roller 1, the second adsorption roller 7, the film stripping roller 2, the air floatation roller 8 and the output roller 9 to rotate, and the cooperative rotation of each component realizes the whole process of coating and drying of the substrate 5.

[0040] The coating device further includes an input device and an output device. The input device is used to convey the substrate 5 with the transfer film 6 to the coating and drying integrated device, and the output device is used to receive the substrate 5 that has been coated and dried by the coating and drying integrated device, realizing the automation of the whole process and improving the production efficiency.

[0041] The above is a specific description of the preferred embodiment of the present invention, but the present invention is not limited to the described embodiment. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A coating and drying integrated device, characterized in that, Including: A first adsorption roller, the first adsorption roller including an input end and an output end; A film stripping roller, which is located at the input end, the film stripping roller rotates in a direction opposite to that of the first adsorption roller, and the film stripping roller is used for stripping the transfer film on the substrate; A coating die head, which is used for coating the substrate; A heating assembly, the heating assembly is closer to the output end than the coating die head, and the film stripping roller, the coating die head and the heating assembly are arranged in sequence along the rotation direction of the first adsorption roller.

2. The coating and drying integrated device according to claim 1, wherein, Further including: A second adsorption roller, the second adsorption roller is opposite to the first adsorption roller and arranged with a gap, and the rotation directions of the two are the same; There are two heating assemblies, and the two heating assemblies are respectively located on the circumferential surface of the second adsorption roller and the circumferential surface of the first adsorption roller; An air floating roller, which is located between the first adsorption roller and the second adsorption roller, the rotation direction of the air floating roller is opposite to that of the first adsorption roller, and the air floating roller and the heating assembly close to the second adsorption roller are arranged in sequence along the rotation direction of the second adsorption roller.

3. The coating and drying integrated device according to claim 2, characterized in that: Further including an output roller, which is located on the side of the second adsorption roller away from the air floating roller, the rotation direction of the output roller is opposite to that of the second adsorption roller, and the heating assembly close to the second adsorption roller and the output roller are arranged in sequence along the rotation direction of the second adsorption roller.

4. The coating and drying integrated device according to claim 3, characterized in that: Both the output roller and the film stripping roller are rubber rollers.

5. The coating and drying integrated device according to claim 1, characterized in that: The heating assembly includes three heaters, and the three heaters are evenly arranged along the rotation direction of the first adsorption roller.

6. The coating and drying integrated device according to claim 5, wherein: The heater is a laser heater or an infrared heater.

7. The coating and drying integrated device according to claim 2, wherein: Both the first adsorption roller and the second adsorption roller include a roller surface and an inner shaft, the roller surface is fixedly sleeved on the outer wall of the inner shaft, and a plurality of adsorption holes are arranged on the roller surface; One end of the inner shaft is provided with a first communication hole and a second communication hole, the first communication hole and the second communication hole are communicated, the first communication hole is arranged along the axial direction of the inner shaft, the second communication hole is arranged along the radial direction of the inner shaft, the first communication hole is connected with an air rotary joint, the second communication hole and the roller surface are connected with a vacuum tube, and the vacuum tube is communicated with each adsorption hole.

8. The coating and drying integrated device according to claim 7, characterized in that: A vacuum flow guide plate is connected between the roller surface and the vacuum tube.

9. A coating device, characterized in that: Including a driving assembly and the coating and drying integrated device according to any one of claims 1-8, the driving assembly is used to provide driving force for the coating and drying integrated device.

10. The coating device according to claim 9, wherein: Further including an input device and an output device, the input device is used to convey the substrate with a transfer film to the coating and drying integrated device, and the output device is used to receive the substrate that has been coated and dried by the coating and drying integrated device.

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