Screen printing machine architecture and features

A screen printer is a machine for printing text and images and is a machine for producing printed matter. The main structure of the screen printing machine is composed of a transmission device, a plate printing device, a printing device, a supporting device, a counter plate mechanism, a drying device and an electric control device.

Transmission: motor, electromagnetic clutch, reducer, speed governing mechanism.

Plate printing device: The screen printing plate must be fixed on the printing plate device in the screen printing machine, and in the printing process, the uncovering type lifting or horizontal lifting is realized.

Mainly: plate holder, plate landing mechanism, plate adjustment mechanism, lifting net compensation mechanism.

Printing device: squeegee and ink return are the main actions to achieve silk screen printing. The squeegee system and ink return system are usually installed on the squeegee carriage. In the reciprocating motion, the squeegee and the ink return plate are alternately moved up and down. Achieve the ink scraping and ink returning action.

1 printing reciprocating stroke realization, generally adopts the following mechanisms: crank linkage mechanism, crank slider mechanism, chain sprocket mechanism, cylindrical plug magnetic cylinder.

2 Guide mechanism generally adopts the following forms: roller groove rail, double guide shaft, guide shaft and slider.

3 scraping, ink return plate transposition mechanism often uses the following form:

Step slot lifting block plus lever transposition mechanism, cam lifting mechanism plus lever transposition mechanism, two cylinder reverse action or single cylinder plus lever mechanism, cam-swing bar mechanism pulling wire and lever mechanism, chain hanging point change makes two plates In the swinging step position, when a scraper is used instead of two scrapers, an ink jump action is required, and the ink jump action is performed by a specific mechanism.

The support device is the printing platform: it is used to fix the substrate.

1 should have a print positioning device.

2 platform height and level adjustment device.

Alignment mechanism: The position of the platform when moving against the plate is generally achieved by mechanical threading, and should have reliable locking device and shifting guide.

Drying device: infrared electric heating tube hot air drying or ultraviolet curing drying device.

Electrical control device: work cycle control, scraper position control, air pressure control.

Screen printing machine features

The printing plate of the screen printing machine is a cross-hatched, warp-latched screen made of silk and other materials. A variety of screen printing machines, such as planes, curved surfaces, forming, printing and dyeing, printed circuits and new types of rotary printing, have been produced. Among them, the new rotary screen printing machine has a relatively high speed and productivity. It is characterized in that the screen is mounted on the drum and the ink is poured into the drum. The drum rotates while the machine is working, and the squeegee prints the pattern quickly onto the print.

In addition to the silk material, nylon wire, copper wire, steel wire or stainless steel wire can be used. The principle of stencil printing for screen printer applications originated from ancient stencil printing. The stencil printing has various forms such as stencil printing, stencil printing and screen printing.