Synchronous two-sided digital ink-jet machine

Abstract

The invention relates to an inkjet printing device, in particular to a synchronous double-face digital inkjet printing machine which can realize individual inkjet printing without printing width limitation. The device comprises a wall plate, a cloth takeup and placing device which is arranged on the wall plate, an auxiliary inkjet printing roll with the same diameter as a main inkjet printing roll is alternately arranged with the main inkjet printing roll between the wall plates, and the auxiliary inkjet printing roll is driven by the main inkjet printing roll through a material to be printed; the printing material winds the main inkjet printing roll and the auxiliary inkjet printing roll with the front face and the rear face contacting the main inkjet printing roll and the auxiliary inkjet printing roll respectively, and a bearing plate is arranged below the material to be printed between the inkjet printing rolls; one sides of the main inkjet printing roll and the auxiliary inkjet printing roll are equipped with an upper jet head set and a lower jet head set which can reciprocate and an ink supply larry. The jet head sets can horizontally reciprocate for inkjet printing, can print wide printing materials without limitation by the width of the jet head sets; the material to be printed always wind the inkjet printing rolls at the front printing point and the rear printing point without warping and buckling, and the jet heads get close to the material to be printed; the main inkjet printing roll drives the auxiliary inkjet printing roll, which ensures the inkjet printing precision of the two faces.

Description

technical field [0001] The invention relates to inkjet equipment, in particular to a synchronous double-sided digital inkjet printer capable of individualized inkjet painting and unlimited inkjet width. Background technique [0002] At present, inkjet printers capable of double-sided inkjet printing have been used more and more in the industry. Because it can be spray-painted on the front and back of the spray-painted material, when making light box advertisements, the picture is bright and full, which is deeply loved by industry personnel. [0003] Most of the existing double-sided inkjet printers are completed by step-by-step inkjet printing. Print one side of the material first, then remove the material, turn it over and install it, and then spray the other side of the material. This kind of double-sided inkjet printer is labor-intensive and time-consuming, and the accuracy of front and rear alignment is difficult to guarantee. [0004] With continuous development, syn...

AI Technical Summary

Problems solved by technology

The material of the existing double-sided inkjet printer is translated through the nozzle. Due to the unevenness of the material when it is laid flat, it is easy to wrinkle

In order not to make the nozzle scrape against the material, the distance between the nozzle and the material to be sprayed will be increased, above 4mm, thus reducing the printing accuracy

[0006] In addition, the width of the nozzle group of the existing roller-type synchronous double-sided inkjet printer is the same as the width of the inkjet roller (the nozzle group is fixed), and the width of the inkjet material is limited by the width of the nozzle group. It is not possible to print wide-format materials. Small format materials such as documents, bags or flags

The printing material is supported by multiple support rollers and support belts between the printing rollers. Since the printing material passes through the above-mentioned components, the more components there are, the greater the error phase accumulation of each component will be, which increases the cost of the printing machine. Internal space, increase production cost, and affect the progress of inkjet materials, which will cause a decrease in the accuracy of front and back inkjet printing

Furthermore, in existing double-sided inkjet printers, slippage will occur between the inkjet material and the inkjet roller, which will also affect the accuracy of inkjet printing.

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