Mask machine production line quality appraisal

mask production line is an automated production equipment, mainly composed of a series of machines. During the production process, multiple layers of materials need to be processed through certain processes to finally make a mask. The production of
mask machine production line requires a certain technical level. In order to ensure product quality, the production line needs to be controlled.
In the case of mask machine production line quality appraisal, Zhongke Testing can provide mask machine production line quality appraisal services.

T/ZZB 1778-2020 Fully automatic flat mask machine
GB/T 5226.1-2019 Mechanical and electrical safety Mechanical and electrical equipment Part 1: General technical conditions
GB/T 23821-2022 Mechanical safety Safety distance to prevent upper and lower limbs from touching the danger zone
EN ISO 12100-1:2003 Safety of machinery - Basic concepts and general design principles - Part 1: Basic terminology, methodology
EN ISO 12100-2:2003 Safety of machinery - Basic concepts and general design principles - Part 2: Technical principles
EN ISO 14121-1:2007 Safety of machinery - Risk assessment - Assessment principles

was entrusted by a court to analyze whether the failure of the mask machine production line involved in the case to work properly was a quality problem with the mask machine production line itself.
quality analysis results: The
quality analysis expert group discussed and conducted comprehensive quality technical analysis on the relevant information and on-site investigation and inspection of the mask machine production line involved in the case, and made the following suggestions and conclusions:
1) The nameplates of the five mask machines involved in the case, as well as the assembled ultrasonic generator nameplates and gear transmissions, did not have safety protection installed, and there were no danger warning signs, and they did not meet the requirements of relevant standards.
2) The five mask machines involved in the case did not have cabinet doors installed under the ear strap loading and welding devices, which could not protect the internal ultrasonic generators and ultrasonic vibrators, posing safety risks and failing to meet relevant standards.
3) None of the electrical control cabinets assembled by the five mask machines involved in the case saw warning signs such as electric shock hazards, posing safety hazards and failing to meet relevant standards.
4) There is no equipotential connection between the doors and cabinet bodies of the electrical control cabinets assembled by the five mask machines involved in the case, and they do not meet the requirements of relevant standards.