A pair-roll continuous thermal transfer device suitable for steel plates

Abstract

The invention discloses a double-roller type continuous thermal transfer printing device applicable to steel plates. The double-roller type continuous thermal transfer printing device comprises a hot box and a heat transfer paper pay-off shaft arranged outside the hot box. The two opposite side faces of the hot box are provided with a steel plate inlet and a steel plate outlet respectively. A plurality of sets of heat transfer printing paired rollers are arranged from the steel plate inlet to the steel plate outlet. Each set of heat transfer printing paired rollers includes an upper rotary shaft and a lower rotary shaft, wherein the upper rotary shaft and the lower rotary shaft are arranged oppositely in an up-down mode. Gaps are formed between the upper rotary shafts and the lower rotary shafts and used for clamping the steel plates and heat transfer printing paper and enabling the steel plates and the heat transfer printing paper to pass through. According to the double-roller type continuous thermal transfer printing device, continuous operation is achieved through the paired extrusion rubber rollers, so the double-roller type continuous thermal transfer printing device is applicable to a single steel plate and continuous heat transfer printing of a steel plate strip; compared with traditional platform type printing equipment, the double-roller type continuous thermal transfer printing device greatly improves transfer printing efficiency.

Description

technical field [0001] The invention relates to a steel plate printing equipment, in particular to a pair-roller continuous thermal transfer device suitable for 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, opening and closing ...

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 heat transfer operation of steel plate and strip, and has achieved great commercial success, it is only applicable to the continuous steel plate and strip in coils, and it cannot do anything for the single steel plate commonly used in the market, and the entire production line expensive

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