Quality tracing system and method of expansion valves

Abstract

The invention discloses a quality tracing system and method of expansion valves. The quality tracing system of the expansion valves comprises five hosts, wherein the hosts and working procedure devices are mutually connected, each host stores a production line Excel configuration table for each production line of the expansion valves, the production line Excel configuration tables of the hosts are the same, each production line Excel configuration table comprises working procedure parameter information including chain working procedure numbers in a built-in mode, and continuous numbering is carried out on the chain working procedure numbers according to the sequence of production line working procedures. Quality tracing of each expansion valve is achieved through a product and employee serial number, a production line number, a station number and each production line Excel configuration table. The quality tracing method of the expansion valves is characterized in that a working procedure chain is achieved, the working procedures and stations are traced, the production status of each employee is traced, and working procedure information is called to carry out judgment of quality. According to the quality tracing system and method of the expansion valves, due to the characteristics of different expansion valves, working procedure configuration is carried out through the production line Excel configuration tables, the characteristic that the production working procedures are related in a previous-and-next mode is taken into consideration, error control of production is achieved through the working procedure chain, and quality tracing is achieved through bar codes and radio frequency identification.

Description

technical field [0001] The invention relates to a traceability system and method, in particular to an expansion valve quality traceability system and method. Background technique [0002] The expansion valve is an important part in the refrigeration system, generally installed between the liquid storage cylinder and the evaporator. The expansion valve makes the medium-temperature and high-pressure liquid refrigerant become low-temperature and low-pressure wet steam through its throttling, and then the refrigerant absorbs heat in the evaporator to achieve the cooling effect. The expansion valve controls the flow rate of the valve through the change of the superheat at the end of the evaporator to prevent Insufficient utilization of evaporator area and knocking phenomenon. [0003] At present, expansion valve manufacturers generally have a low degree of informatization, and the quality management method is mainly manual. Moreover, the processes of different expansion valve pr...

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Problems solved by technology

[0003] At present, expansion valve manufacturers generally have a low degree of informatization, and the quality management method is mainly manual. Moreover, the processes of different expansion valve production lines of different expansion valve manufacturers are often different, and the required process parameters are also different. There are few markets. There is a universal quality traceability system that can meet this situation, such as a "product quality traceability system and method" disclosed in Chinese patent document CN102622692A, and a "part quality traceability system and method" disclosed in Chinese patent document CN102762032A , A "Paint Quality Tracing System and Method" disclosed in Chinese Patent Document CN102419849A, and a "Motor Vehicle Parts Quality Tracing System and Operation Method" disclosed in Chinese Patent Document CN101344942 did not address the large differences in the production processes of various expansion valve manufacturers. characteristics, put forward a quality traceability system and method with a certain degree of generality, and mostly did not consider the characteristics of correlation before and after each production process of expansion valve manufacturers

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