A cell edge trimming anti-drawing mechanism and edge trimming method

Abstract

A cell edge trimming anti-drawing mechanism and edge trimming method, including an upper cutter fixed to an upper connecting plate, and a lower cutter fixed to a lower connecting plate, characterized in that the lower connecting plate is slidably installed on a line rail, and one side of the lower connecting plate is provided with There is a lateral drive mechanism for driving the lower connecting plate to slide laterally along the line rail, the lower connecting plate is fixed with a guide post, and the upper connecting plate is slidably connected to the guide post, and the guide post between the upper connecting plate and the lower connecting plate is sleeved There is a spring, and one side of the upper connecting plate is provided with a vertical drive mechanism for driving the upper cutter to move up and down to cut off the redundant side of the battery core, and the lower connecting plate is provided with a hole for the cut waste to pass through near the lower cutter. through hole. The invention can quickly cut off the redundant side of the electric core, and can drop the cut waste into the set position.

Description

technical field [0001] The invention relates to a cell edge trimming and anti-drawing mechanism, in particular to an edge trimming method for four-in-one lithium battery forming equipment, belonging to the technical field of lithium battery equipment. Background technique [0002] Lithium-ion power batteries have high working voltage (three times that of nickel-cadmium batteries and nickel-hydrogen batteries), large specific energy (up to 165WH / kg, three times that of nickel-hydrogen batteries), small size, light weight, and long cycle life , low self-discharge rate, no memory effect, no pollution, etc., so it is used by many power equipment manufacturers. [0003] The soft-packed battery cell is a battery cell that uses aluminum-plastic film as the packaging material. The aluminum-plastic packaging film has three layers: nylon, aluminum, and PP. The nylon layer ensures the shape of the film, and the aluminum layer is for waterproofing and plasticity. PP is the abbreviation...

AI Technical Summary

Problems solved by technology

[0004] At present, in the process of the four-in-one molding machine for soft-packed batteries, there is a process called edge trimming, which is to cut off the excessively long aluminum-plastic film on the edge of the battery core. Since the edge is ironed in the previous process, the ironed edge is more It is easy to cut, but the PP layer of the aluminum-plastic film has become a semi-melted state. When cutting, it is not easy to cut cleanly, and during the process switching process, the semi-melted PP on the aluminum-plastic film will be drawn into filaments and dripped on the equipment. On the other hand, it will damage the life of the equipment and require manual cleaning

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