Cloth feeding mechanism of digital printing machine

Abstract

The invention discloses a cloth feeding mechanism of a digital printing machine. The cloth feeding mechanism of the digital printing machine comprises a machine frame, an air expansion shaft, a largeroll corner wrapping roller, a cloth passing roller a, a constant-tension floating roller, a cloth passing roller b, a cloth passing roller c, a moving roller and a width increase corner wrapping roller. The air expansion shaft, the large roll corner wrapping roller, the cloth passing roller a, the constant-tension floating roller, the cloth passing roller b, the cloth passing roller c, the movingroller and the width increase corner wrapping roller are arranged on the machine frame. An unwinding driving device is arranged at one end of the air expansion shaft. Lifting guide mechanisms and a floating lifting driving device are arranged on the machine frame and drive the constant-tension floating roller to move. A horizontal movement driving device for front-and-rear sliding mechanisms which allow the moving roller to horizontally move is arranged on the machine frame. An unwinding deviation correcting system which conducts position correction on a piece of cloth is arranged on the machine frame. The cloth feeding mechanism of the digital printing machine has the advantages that the cloth feeding mechanism is matched with large rolls of cloth and small rolls of cloth, a cloth framedoes not need to be independently arranged, and the cost is saved; the cloth feeding mechanism has the function that the deviation correction and the edge alignment are automatically conducted on thecloth in real time; the cloth can be closely attached to a conveying belt, few press marks exist, no fold exists, a spray nozzle is protected, and the printing quality is improved; a single air cylinder is adopted so that the control over the value of the constant tension of the constant-tension floating roller can be achieved; and the jam phenomenon is avoided.

Description

technical field [0001] The invention relates to a digital printing machine, in particular to a cloth loading mechanism of the digital printing machine. Background technique [0002] Digital printing machines are widely used in clothing, cutting pieces, clothing, leather, luggage, transfer paper, artificial flowers, shoe materials, flocking cloth, thick plate, cloth, etc. At present, the cloth loading mechanism of the digital printing machine includes the frame, the cloth loading frame, and the large wrapping angle roller, the cloth passing roller, the constant tension roller, the pressure roller, and the expanding angle wrapping roller arranged on the frame; There is a device for aligning the fabric; the constant tension roller is equipped with a constant tension mechanism to maintain tension, and the constant tension mechanism adopts counterweights or cylinders are installed at both ends of the constant tension roller. When in use, it needs to be equipped with a cloth rack...

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Problems solved by technology

[0003] However, the cloth loading mechanism of the existing digital printing machine has the following disadvantages: (1) it needs to be equipped with a separate cloth rack; (2), the edge alignment device only aligns the edge during the cloth running process, which requires a lot of space to carry out Cushioning; (3) The position of the moving roller is fixed, and there is no chance to eliminate the creases of the cloth during printing; (4) The moving roller has no heating device, so that the cloth can be more closely attached to the printing conveyor belt; it is impossible to eliminate the wrinkles caused by

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