What are the replacement methods for the double-sided offset press parts?

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No matter how good the production process of the double-sided offset printing is, the parts may be damaged by grinding and damage after prolonged use. Therefore, it is necessary to check and replace the parts of the double-sided offset printing machine on a regular or irregular basis. The method of replacing the double-sided offset printing machine parts is as follows:


(1) Check the drawings and specifications of the double-sided offset printing machine to find out the structure of the double-sided offset printing machine and the relationship between the various components.


(2) Prepare repair tools and materials.


(3) According to the information and practical experience, in the reverse order of assembly, from the outside to the inside, from top to bottom, first disassembled into parts or assemblies, and then disassembled into parts.


(4) Disassemble the parts of the double-sided offset printing machine to be marked or labeled, especially the position where the parts are matched should be marked, classified and kept, and can not be piled up indiscriminately to prevent loss.


(5) Make a record. During the disassembly process, the wear and tear of the parts of the double-sided offset printing machine, relevant technical data and technical requirements shall be recorded one by one for timely disposal during the maintenance process.


(6) Wash and inspect. Disassemble the double-sided offset printing machine parts with kerosene as soon as possible, and check after cleaning. First, check the appearance to see if there are cracks, damage, and rust. Pitting, twisting, bending, etc., and then checking the geometry and dimensions to measure whether the wear of each running part exceeds the requirements.


(7) Replace or repair parts. Determine which parts should be repaired or replaced according to the inspection conditions. The following principles should be mastered when repairing or replacing the double-sided offset printing machine parts:


1 When the main part and the minor part are in operation, the main part is repaired after the wear and the minor part is replaced.


2 When the parts with long machining cycle and short machining cycle are in operation, the machining cycle is generally long after wear, and the replacement machining cycle is short.


3 When the large-size and small parts of the double-sided offset printing machine work together, after the surface is worn, the large parts are generally repaired and the small parts are replaced.

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