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Most use a plastic pen cheap PP material, in the case of adhesion to the less demanding, using a dedicated PP silk screen printing ink, can not use pre-press, but there are stringent requirements for adhesion with some users, then in the pen screen printing machine above the installation of the necessary pre-press processing equipment it is very important.
    Currently, all three mature prepress processing means are adopted: flame treatment, high-frequency processing, PP water wiping device.
    Pen smaller diameter, the process requires a 360-degree rotation, which increases the complexity of the mechanical structure. From the point of view, the ideal high-frequency processing, PP water wipe Secondly, flame treatment after home.
    Pen screen printing machine prepress device, effectively solves some pen surface residual stains and grunge ink resistance, increased adhesion.

Feeding device

• Principle: The pen holder is transported to the printing position in an orderly manner by mechanical or pneumatic means.

• Structure: Generally, there are silos, conveyor belts, and pusher mechanisms. The silos store pen holders, the conveyor belts send the pen holders to the designated position, and the pusher mechanism pushes the pen holders to the printing start position. For example, the vibrating plate feeding device uses vibration to make the pen holders rise along the spiral track to achieve one-by-one feeding.

• Function: Ensure that the pen holder can enter the printing process accurately and stably to improve production efficiency.

Prepress processing device

• Principle: Clean the surface of the pen holder to make it easier to absorb ink, or roughen the surface of the pen holder.

• Structure: Usually includes cleaning brushes, plasma treatment equipment, etc. The cleaning brush removes dust and oil, and the plasma treatment equipment can change the chemical properties of the pen holder surface.

• Function: Improve the ink adhesion effect and ensure the quality of silk screen printing.

Silk screen printing device

• Principle: The scraper squeezes the ink through the mesh of the silk screen and transfers the pattern to the pen holder.

• Structure: It is mainly composed of screen, scraper, scraper, screen frame and printing platform. The screen has a pattern template, the scraper pushes the ink, the scraper scrapes off the excess ink, the screen frame fixes the screen, and the printing platform places the pen holder.

• Function: Print the designed pattern accurately on the pen holder.

Ink drying device

• Principle: The solvent in the ink is evaporated by heating, blowing or ultraviolet irradiation, so that the ink is quickly dried and cured.

• Structure: There are hot air blowers, infrared dryers, ultraviolet curing lamps and other equipment. The hot air blower accelerates the drying of the ink through hot air, the infrared dryer uses infrared radiation to dry the ink, and the ultraviolet curing lamp is suitable for the curing of UV ink.

• Function: Speed ​​up the drying speed of the ink, improve production efficiency, and prevent the ink from getting dirty.

Feeding device

• Principle: Remove the printed pen holder from the printing position for collection or subsequent packaging.

• Structure: Common ones include conveyor belts, robotic arms, slides, etc. The conveyor belt directly transports the pen holders to the collection area, the robot arm can accurately grab and place the pen holders, and the slideway allows the pen holders to slide naturally.

• Function: Collect the printed pen holders in an orderly manner to complete the printing process.