What is a Flat Screen Printing Machine?
A flat screen printing machine is a device used for screen printing on flat materials.
I. Basic Principle
Screen printing transfers ink through the mesh holes of a screen onto a flat object (such as paper, plastic, metal, glass, etc.) by the squeezing of a squeegee to form patterns or texts. The flat - screen printing machine utilizes this principle. The screen plate is fixed in a specific position of the machine. When the flat material to be printed is placed on the printing platform, the power device of the machine drives the squeegee to move, accurately completing the ink - transfer process.
II. Main Structural Components
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Printing Platform
- This is the flat area where the printed items are placed. It needs to ensure sufficient flatness and stability. It is usually made of metal materials (such as aluminum alloy) to bear the weight of the printing materials and remain stationary during the printing process to ensure the accurate position of the printed pattern.
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Screen Plate Fixing Device
- It is used to fix the screen plate so that the screen plate will not shift during the printing process. It can adjust the position and angle of the screen plate to adapt to different - sized and printing - requirement patterns. For example, when printing different - sized cards, the screen plate fixing device can be adjusted to accurately print the pattern on the specified position of the card.
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Squeegee Device
- The squeegee is a key component in screen printing. The squeegee device of a flat - screen printing machine usually includes a squeegee mounting base and a power - driven part. The squeegee is generally made of elastic materials such as rubber, and its hardness and shape can be selected according to the nature of the ink and the requirements of the printed pattern. During printing, the squeegee device drives the squeegee to move on the screen plate, evenly squeezing the ink through the mesh holes onto the printing material.
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Ink System
- It includes an ink tank, an ink - delivery pipeline, and an ink - adjustment device. The ink tank is used to store ink, the ink - delivery pipeline transports ink from the ink tank to the screen plate, and the ink - adjustment device can control the ink flow and uniformity. For example, when printing fine patterns on the outer shell of electronic products, it is necessary to precisely adjust the ink flow to ensure the clarity of the pattern and the consistency of the color.
III. Application Areas
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Advertising Industry
- It is used to produce various advertising promotional materials, such as posters, leaflets, light box films, etc. The flat - screen printing machine can accurately print various bright colors and complex patterns on these materials to attract consumers' attention.
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Garment Printing Field
- It is a commonly - used device for garment printing such as T - shirts and sportswear. It can print fashionable patterns and brand logos on the garment surface to meet the needs of personalization and branding.
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Electronics Industry
- It is used to print the outer - shell identification of electronic devices and markings on circuit boards. In this field, there are high requirements for printing precision and ink quality. The flat - screen printing machine can well meet these requirements, ensuring the aesthetic appearance of electronic devices and the accuracy of information identification.
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Packaging Industry
- It can print various packaging boxes and bags, such as cosmetic packaging boxes and food packaging bags. Through the printing of the flat - screen printing machine, the aesthetics of the packaging and the display effect of product information can be increased.
