What is a multi-layer belt dryer
The multi-layer belt dryer is suitable for large-scale production of difficult-to-dry materials with a low drying rate. The equipment has a compact structure, a small footprint, simple operation, convenient maintenance and stable operation. It can be designed into different hot air circulation drying forms according to the drying characteristics of the material. It is an extension and improvement of the hot air circulation oven and is widely used in metallurgical additives, chemicals, food, packaging and other fields. With the advancement of enterprise technology and the improvement of product technology content, multi-layer belt dryers have the ability to meet large-scale production, diversification, centralized control and continuous production. It has the advantages of high efficiency, energy saving and easy management.
The working principle of screen printing machine
①The working cycle program of the flat screen flat screen printing machine takes the flat screen platform type monochrome semi-automatic hand surface screen printing machine as an example. One of its working cycles is: feeding → positioning → setting down → lowering to the ink plate, Raise the ink plate → scrape stroke → raise to the ink plate → lower the ink plate → lift the plate → ink return stroke → release positioning → receive.
Main features of screen printing machine
The screen printing machine belongs to the more representative printing equipment in the stencil printing machine. Its printing plate is a criss-crossing silk screen with distinct warp and weft woven from real silk and other materials. A variety of screen printers have been produced, such as flat, curved, forming, printing and dyeing, printed circuits, and new rotary screen printers. Among them, the speed and productivity of the new rotary screen printing machine are relatively high. Its characteristic is that the screen is installed on the cylinder and the ink is poured into the cylinder. The drum rotates when the machine is working, and the squeegee quickly prints the pattern on the printed matter. In addition to real silk, the material for making screen mesh can also be nylon wire, copper wire, steel wire or stainless steel wire. Screen printing machine should
Different types of screen printing machines
Screen printing can be divided into many types according to its format, printer variety, ink properties and type of substrate, but the printing methods can be divided into the following types. 1. Flat screen flat screen printing: Flat screen flat screen printing machine uses a flat screen plate to print on a flat substrate. During printing, the printing plate is fixed and the scraping plate moves. 2. Flat screen curved screen printing: Flat screen curved screen printing is a method of printing flat screen printing plates on curved substrates (such as balls, cylinders, cylinders, etc.). When printing, the squeegee is fixed, the printing plate moves in the horizontal direction, and the substrate rotates with the printing plate. 3. Rotary screen screen printing: Rotary screen screen printing is a cylindrical screen printing method in which a fixed squeegee is installed in the cylinder, and the cylindrical printing plate and the substrate are synchronously moved at the same line speed. 4. Indirect screen printing: the first three methods all use the printing plate to print directly on the substrate, but only some regular geometric shapes, such as planes, cylindrical surfaces, conical surfaces, etc., can be printed on complex shapes, edges and recesses. Surfaces and other special-shaped objects must be printed by indirect screen printing. The process often consists of two parts: flat screen printing and transfer, that is, the screen printing image is not directly printed on the substrate, but printed first. On the flat material, transfer to the substrate by a certain method. One of the methods of indirect printing is to use flat screen printing to print an image on a flat glass, and then use a flexible silicone head to absorb the ink image from the glass plate like a seal, and then transfer it to a special shape. Surface: Another method of indirect screen printing is decal transfer, such as: silk-screen decal + thermal transfer, screen-print decal + pressure sensitive transfer, screen-print decal + solvent activation transfer Printed. Indirect screen printing has become a major area of the printing industry.
Warmly celebrate the opening of the website of Shanghai Fengtai Precision Machinery Co., Ltd.!
Warmly celebrate the opening of the website of Shanghai Fengtai Precision Machinery Co., Ltd.! Shanghai Fengtai Precision Machinery Manufacturing Co., Ltd. is a famous domestic manufacturer specializing in the production of fully automatic screen printing machines and auxiliary equipment. The company integrates research, development, production and sales. The types and models produced by the company include FJ and FT780, 800, 1050 and other reciprocating and stop-rotating drum screen machines, as well as corresponding auxiliary equipment.