A double-sided printing device with precise positioning and its control method

Abstract

The invention discloses a double-sided printing device with precise positioning, which belongs to the field of double-sided alignment printing devices, and includes a first printing unit and a second printing unit. The same pattern is printed on the reverse side, the spraying directions of the first printing unit and the second printing unit intersect to form an angle, and only one variable guide roller is set between the transmission paths of the first printing unit and the second printing unit, and the contact surface of the variable guide roller is On the reverse side of the flexible fabric, after the flexible fabric is output from the first printing unit, the transmission direction is changed by the changing guide roller and then enters the second printing unit, and the transmission path between the first printing unit and the second printing unit is also equipped with The first oven for drying. The invention also discloses a control method of the duplex printing equipment. The advantage of the present invention is that it can make the adjustment of alignment easier while keeping the alignment accuracy of double-sided printing better.

Description

【Technical field】 [0001] The invention relates to a double-sided printing device with precise positioning, belonging to the field of double-sided printing devices. 【Background technique】 [0002] With the development of society and the progress of science and technology, printing equipment has become an indispensable product in daily life and office. At present, most of the printing equipment are office printing equipment, such as printing single-page paper, etc., but there are some Some printing needs to print double-sided printing equipment that can be aligned and overlapped on flexible fabrics. For this type of double-sided printing equipment, there are currently many open prior technologies, such as: [0003] In the printing equipment disclosed in the patent CN109823060A and the single-sided and double-sided printing method using the printing equipment, it is disclosed that it includes two printing mechanisms, and the two printing mechanisms are designed side by side. M...

AI Technical Summary

Problems solved by technology

[0006] This layout method, although there is no variable guide roller in the two printing mechanisms, avoids the defects of the first solution to a certain extent, but this solution also has disadvantages: first, the two printing mechanisms are set in alignment, and the flexible fabric In the middle of the spraying direction of the two printing mechanisms, due to different flexible fabrics, the thickness will be different. When different flexible fabrics pass through the two printing mechanisms, the spraying distance between the flexible fabric and the two printing mechanisms will change, and adjust After adjusting the spacing of one printing unit, it will naturally affect the spacing of the other printing unit. That is, when facing flexible fabrics with different thicknesses, it may be necessary to readjust the spacing between the two printing mechanisms. This is very complicated and difficult. controlling

Secondly, since the flexible fabric is dried at the same time after passing through the two printing mechanisms, the linear stroke of the drying needs to be long enough, otherwise if it is transferred to the turning guide roller, the undried pattern will adhere to the Turning to the guide roller, so for the second solution, the linear stroke of drying is long, which will increase the volume of the equipment, and at the same time, it is difficult to adjust the flexible fabrics of different thicknesses

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