What are the classification of printing press?
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- Time of issue:2021-07-14
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(Summary description)
What are the classification of printing press?
(Summary description)
- Categories:News
- Author:
- Origin:
- Time of issue:2021-07-14
- Views:0
The paper industry and printing industry are inseparable from each other. When paper is produced as commercial, it is often printed and produced. Now, various commodity packaging needs to be printed. Let us introduce the classification of printing and brushing equipment to you today
Flat press: the printing machine is characterized by a parallel plate mounting mechanism and a embossing mechanism.
During printing, the imprint lithography moves back and forth on the main shaft to complete the paper feeding and stamping. Because the ink of the plate is in contact with the lithography plate at the same time, the printing plate takes longer time and the pressure applied on the substrate is greater. Therefore, the ink thickness of the plate, the color of the lines and strokes is full.
This type of printing machine is small in size, slow in printing speed and low in production efficiency. It is suitable for printing small format printing products, such as greeting cards, invitation letters, book covers, envelopes, labels, etc. The printing machine has a movable printer, copper zinc plate proofing machine and disc machine.
Round press press: also known as platform printing machine, its structure is characterized by that the plate mounting mechanism is flat, the press mechanism is a round drum, commonly known as the press drum.
When printing, the plate is moved with the plate loading platform, and moves repeatedly relative to the press drum. The press drum is generally in a fixed position, and the press is pressed while rotating with the substrate. The pressure exerted by the press drum on the substrate is higher than that of the flat press press. However, due to the reciprocating movement of the plate, the printing speed is limited and the production efficiency is not high. The main body of the book and magazine is printed. These printing machines include: one rotary relief printing machine, two rotary relief printing press, stop rotary convex printing machine, flat plate proofing machine, etc.
Round press flat printing machine: also known as platform type printing machine, its structural characteristics are flat plate installation mechanism, embossing mechanism is round drum shape, commonly known as press drum.
When printing, the plate moves back and forth relative to the plate drum and the plate, and the plate drum is usually in a fixed position, and the printing material rotates. The pressure exerted by the plate roller is higher than that of the flat press, but the reciprocating movement of the plate limits the printing speed and the production efficiency is not high. It is mainly used to print the body of books and periodicals.
Round press round printing machine: also known as rotary printing machine, its structural characteristics are plate mounting mechanism and embossing mechanism are cylindrical drum, cylindrical plate mounting mechanism, commonly known as plate roller.
In printing, the embossing drum carries the substrate and rotates in the opposite direction as the plate roller when embossing. Because the contact time between the embossing roller and the flat plate drum is short, the pressure applied on the substrate is less than that of the rotary press.
The circular press adopts the continuous contact and stamping between the press drum and the plate cylinder, which has the advantages of smooth motion, simple structure and fast printing speed. If the printing device is designed as a satellite or machine-based printer, it can also be printed in two-sided and multi-color, with high production efficiency. These printing machines are currently used most, including flat printing press, gravure press, flexographic printing machine and printing book, newspaper, high-speed screen printing machine.
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