Aluminum plastic film scouring hole depth measuring device and measuring method thereof

Abstract

The invention relates to an aluminum plastic film hole-scouring technology of lithium batteries, and specifically relates to an aluminum plastic film scouring hole depth measuring device and a measuring method thereof. The aluminum plastic film scouring hole depth measuring device comprises a thickness gauge platform and a thickness ruler, the thickness gauge platform is provided with a die hole corresponding to an aluminum plastic film scouring hole, the bottom surface of the thickness gauge platform is connected with a positioning ruler used for fixing an aluminum plastic film in a sliding manner, the thickness ruler comprises a transparent main ruler fixed at an edge of the die hole, the axis of the transparent main ruler is provided with a containing chamber, an auxiliary ruler is connected in the containing chamber in a sliding manner, the top of the transparent main ruler is provided with an air pump, the air pump communicates with the containing chamber through an air pipe, the bottom of the auxiliary ruler is provided with a contact head, an airway is arranged at the axes of the auxiliary ruler and the contact head in a penetrating manner, the airway, close to the bottom edge of the contact head, is provided with an air cushion, a side surface of the contact head is provided with a plurality of vent holes, and the vent holes communicate with the airway. The beneficial effects of the device are that multipoint measurement can be realized, the measuring precision is improved, and measuring errors are reduced.

Description

technical field [0001] The invention relates to a pitting technology of an aluminum-plastic film of a lithium battery, in particular to a measuring device and a measuring method for the pitting depth of an aluminum-plastic film. Background technique [0002] At present, during the production of polymer lithium-ion batteries, it is necessary to punch out the aluminum-plastic film according to the mold model corresponding to the core; punch out the aluminum-plastic film with a depth that meets the process requirements, so that the core can be placed in the pit for subsequent processing. Top and side seals. In actual production, it is necessary to monitor the depth of the flushing pit in order to meet the design requirements. If the depth of the pit is too shallow, the top and side seals will wrinkle and fail to seal after the core is put in; if the depth of the pit is too deep, the surroundings of the cell will collapse after the cell is made, resulting in poor appearance. In...

AI Technical Summary

Problems solved by technology

If the depth of the pit is too shallow, the top and side seals will wrinkle and fail to seal after the core is put in; if the depth of the pit is too deep, the surroundings of the cell will collapse after the cell is made, resulting in poor appearance. In severe cases, the aluminum-plastic film will be cracked , causing the product to fail in use, so the depth of the punching pit is a very important control parameter for production

[0003] When measuring the depth of the pit, the industry currently uses a vernier caliper to measure the depth of the two corners of the pit after the pit, and it is impossible to measure the depth of the other two corners, or even the depth of the middle part of the pit; this will cause us to measure around the pit, In particular, the depth of the most important middle part of the pit cannot be grasped (the depth of the middle of the pit can only be predicted by measuring the depth of the two corners), which will lead to potential hidden dangers in our products in subsequent operations and may even lead to major product failures. Exception and failure

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