Sealing method for reducing rejection rate of sealing of glass thermometer

Abstract

The invention discloses a sealing method for reducing the rejection rate of the sealing of glass thermometers. The sealing method comprises the following steps of (1) classifying according to different lengths of glass thermometers; (2) sealing classified glass shells by using an automatic sealing machine according to a classification sequence, counting the yield, drawing a yield curve graph, anddetermining an actual lower limit value X1 of the lengths of the glass shells sealed by the automatic sealing machine; (3) determining an actual lower limit value X2 of the lengths of manually sealedglass shells same as the step (2) to judge a category I conforming to the automatic sealing machine or a category II conforming to manual sealing; (4) listing a category which is not listed in the category I and is not listed in the category II as a useless waste category III, and (5) classifying the glass shells of the thermometers before sealing according to the corresponding lengths of the category I and the category II and then sealing by using a dynamic sealing machine and manual work. The rejection rate of sealing can be reduced, the sealing efficiency of the automatic sealing machine isimproved, and the waste of procedures and materials caused by waste products is reduced.

Description

technical field [0001] The invention relates to the production and processing of glass thermometers, in particular to a sealing method for reducing the rate of defective sealing of glass thermometers. Background technique [0002] During the production process of the internal standard thermometer, a certain percentage of the top of the jacket material will be damaged, which will lead to the top of the jacket being irregular and the effective length of the seal of the jacket will be reduced. When sealing, if the distance between the sealing place and the top is very small, it is easy to cause unqualified products such as cold burst or small size during the sealing process, which will affect the processing efficiency of the sealing of the internal standard thermometer, and also affect the overall pass rate of the product. [0003] However, there are many semi-finished products with damaged tops above, and those with longer lengths can be sealed with an automatic sealing machin...

AI Technical Summary

Problems solved by technology

[0002] During the production process of the internal standard thermometer, a certain percentage of the top of the jacket material will be damaged, which will lead to the top of the jacket being irregular and the effective length of the seal of the jacket will be reduced. When sealing, if the distance between the sealing part and the top is very small, it is easy to cause unqualified products such as cold burst or small size during the sealing process, which will affect the sealing processing efficiency of the internal standard thermometer and also affect the overall pass rate of the product

[0003] However, there are many semi-finished products with damaged tops above, and those with longer lengths can be sealed with an automatic sealing machine after pasting the internal standard, and the length can meet the length requirements of the thermometer, but the damaged ends are closer to the sealing place, use The seal of the automatic sealing machine is easy to be cold and broken and becomes a waste product. If the length is small and cannot meet the sealing needs, it will be recycled as a production waste product, and it will not be processed in a waste process.

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