A production process and system for thermal transfer printing of steel plates

Abstract

The invention discloses a production process and a system applicable to steel plate heat transfer printing. The production process and the system are applicable to continuous heat transfer printing operation of a single steel plate; a flat steel plate is fed into an operation system through a feeder to finish process steps through a washing and air-drying device, a powder spraying pretreatment device and a roll-type continuous heat transfer printing device in sequence. The process comprises the following steps: A, washing, degreasing and preprocessing the flat steel plate and air-drying the flat steel plate; B, carrying out powder spraying pretreatment on the upper surface of the flat steel plate, heating, curing and molding powder; and C, carrying out continuous heat transfer printing on the flat steel plate by using a heat transfer paper coil. Through the production process and the system, the continuous heat transfer printing of the single steel plate is realized; the continuous operation of the steel plate can be carried out; compared with a conventional platform type printing device, the production process and the system have the advantages that the transfer printing efficiency is greatly improved; the transfer printing effect is easily controlled; meanwhile, the flat steel plate does not need to be heated and cooled for multiple times; the energy is greatly saved.

Description

technical field [0001] The invention relates to a steel plate printing method and equipment, in particular to a production process and system for thermal transfer printing of steel plates. Background technique [0002] At present, in order to beautify the steel plate, patterns are usually transferred on the surface of the plate by heat transfer printing. The method is to place the plate in a vacuum transfer bed, cover the surface of the plate with patterned transfer paper, and start the vacuum pump. Pump air, let the silicone skin of the transfer bed press tightly on the outside of the transfer paper, make the transfer paper close to the surface of the board, then push the transfer bed into the oven, heat at 1800C-200C for 3 -5 minutes, the pattern on the transfer paper will be transferred to the surface of the plate. Such thermal transfer equipment has at least the following disadvantages: ①The thermal transfer operation is discontinuous, requiring manual operation, openin...

AI Technical Summary

Problems solved by technology

Such thermal transfer equipment has at least the following disadvantages: ①The thermal transfer operation is discontinuous, requiring manual operation, opening and closing the frame back and forth, the process is cumbersome, the quality is not guaranteed, and the efficiency is extremely low; ②The thermal transfer equipment The normal use of the machine needs to add a sealing device at the opening and closing ends of the upper and lower racks, and the transfer bed is generally large, and the upper and lower racks are frequently opened and closed, the sealing device is very complicated, the sealing effect is poor, and it is easy to run out of air and transfer. Poor print quality

[0003] Chinese patent 200720127283.1 discloses a nested vacuum transfer bed. Although some improvements have been made to the above technical solution, it still adopts a non-continuous operation method, which still fails to solve the cumbersome process of traditional heat transfer technology and the quality is not guaranteed. , an extremely inefficient technical problem

Although this patent realizes the continuous thermal transfer operation of steel plates and strips and has achieved great commercial success, it is only applicable to continuous steel plates and strips in coils, and cannot do anything for single steel plates commonly used in the market

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