Coating machine for solar thin film cell production
A technology of solar film and coating machine, which is applied in the direction of coating, the device for coating liquid on the surface, etc., can solve the problems such as the inability to flexibly adjust the levelness of the part to be coated, the coating quality is reduced, and it is not absolutely vertical, etc. Achieve novel structure, simple and convenient installation, small footprint
Inactive Publication Date: 2021-05-04
HUST WUXI RES INST
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Problems solved by technology
The partial structure of the entire coating head is relatively complicated, requiring high processing precision of the upper rubber roller, coating roller, traction roller and scraper, so the cost is relatively high; due to the high precision, it is difficult to use and operate in practice
The workbench is fixed, and the level of the parts to be coated cannot be flexibly adjusted
[0003] In addition, the raw material of the coating liquid used for the film is very expensive. If the thickness of the coating liquid is too thick, the material cost will be very high. The thickness of the film coating is required to be around 0.01mm, and the thickness deviation of 0.00005mm is strictly required. The existing equipment can rarely meet this precision requirement, and at the same time, the coating surface and the work surface are not absolutely vertical, resulting in a decline in coating quality
Method used
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[0030] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0031] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments of some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0032] It should be noted that the terms "f...
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The invention relates to a coating machine for solar thin film cell production. The coating machine comprises a machine table, a working frame is movably arranged on the machine table, the working frame is driven by a working frame driving mechanism, the working frame is movably connected with a coating cutter through a coating cutter driving mechanism, a liquid storage tank is installed on the working frame, a gear pump is installed on the liquid storage tank, and the gear pump is controlled by an electromagnetic valve. The gear pump communicates with the input end of the coating cutter, and a material installation platform is installed on the machine table. The structure is simple, and cost is low. Traditional coating equipment is complex in structure and troublesome to install and maintain. The coating machine is novel in structure, installation is easy and convenient, and the cost is lower than that of the traditional equipment. The coating device is simple in structure, high in coating precision and small in error. Aiming at the coating equipment in the market at present, the precision advantage of the coating machine is obvious, precise and ultra-precise coating can be realized, the material cost of a photovoltaic cell is controllable, and unnecessary waste can be saved.
Description
technical field [0001] The invention belongs to the field of production and manufacture of solar thin film photovoltaic cells, and in particular relates to a high-precision slit coating equipment, which requires a film thickness of 0.01 mm and a thickness deviation of 0.00005 mm. Background technique [0002] Because the cost of solar thin-film batteries is relatively high, the coating thickness required is very thin, and the gap extrusion coating is generally used on the market. The gap extrusion coating equipment is a common coating method with relatively high precision. The coating glue is pressed from the reservoir to the nozzle through the supply pipeline, and the glue is sprayed out from the nozzle, so as to be transferred to the coated substrate. Partial structure of the whole coating head is relatively complicated, requiring high processing precision of the upper rubber roller, coating roller, traction roller and scraper, so the cost is relatively high; due to the hi...
Claims
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IPC IPC(8): B05C5/00B05C11/10
CPCB05C5/00B05C11/10
Inventor 许剑锋臧艺凯侍大为周君臣
Owner HUST WUXI RES INST