Non-contact driver for intermittent movement of screen printing platen

Abstract

The invention relates to the field of weaving equipment, in particular to a non-contact driver for intermittent movement of a screen printing platen, which comprises an electromagnetic absorbing mechanism, a linear reciprocating motion mechanism as well as a measurement and control device. A support plate of the linear reciprocating motion mechanism is fixedly mounted on a rack; the support plateis connected with a linear guide rail; a sliding block is mounted on the linear guide rail; the sliding block is connected with a movable plate; the movable plate is connected with a drive rod; the drive rod is connected with a drive source; the electromagnets of the electromagnetic absorbing mechanism are connected on the movable plate in a spacing way; the spaces between the electromagnets are equal to the space between two adjacent printing platens; a permanent magnet is connected with the lower side of the printing platens; and both the drive source and the electromagnets are electricallyconnected with the measurement and control device. The non-contact driver for intermittent movement of the screen printing platen adopts a non-contact drive way; therefore, fabrics and drive are effectively isolated, thus avoiding the fabrics from being polluted; moreover, the printing platens can be directly taken down from the rail and cleaned, thus being more convenient; a servo electricity cylinder is adopted for driving; therefore, the control precision is high and the motion is stable; moreover, a drive mechanism of the whole non-contact driver for intermittent movement of the screen printing platen is simple, has low cost and is easy to popularize.

Description

technical field [0001] The invention relates to the field of textile machinery, in particular to a non-contact drive device for intermittent movement of a screen printing platen. Background technique [0002] Screen printing is widely used, accounting for nearly 60% of all fabric printing. With the development of screen printing, the degree of automation of screen printing is getting higher and higher. Automatic screen printing machines generally consist of a cloth feeding device, a centering device, a printing Unit, printing station driving device, body lifting device, dryer, etc. The printing process is that the fabric is pasted by the cloth feeding device on the printing station that circulates in the radial direction, and then imported into the printing unit through the centering device; When printing, the printing station is still, the screen of the printing device is lowered, the scraper is scraped, the screen is lifted, and the fabric moves forward with the printing s...

AI Technical Summary

Problems solved by technology

The existing printing station driving device includes a rotating main shaft connected with a sprocket, and a small sprocket is installed under the printing station, the small sprocket and the sprocket of the rotating main shaft are driven by a chain, and the rotating main shaft rotates A certain angle drives the printing station to move to the next station, and the driving of the rotating main shaft adopts the meshing transmission mode of the motor and the rotating main shaft gear. Due to the existence of multiple transmission links such as chains and gears in this driving mode, it is necessary to ensure that the printing work It is difficult to accurately place the platform, and the structure is complicated and the cost is high

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