Conveying and slitting device for diaphragm bags

Abstract

The invention discloses a conveying and slitting device for diaphragm bags. The conveying and slitting device for the diaphragm bags comprises a slitting mechanism and a conveying mechanism, wherein the slitting mechanism is used for slitting the diaphragm bags, and the conveying mechanism is used for conveying the diaphragm bags to the slitting mechanism. The conveying mechanism comprises a conveying platform, a clamping unit and a conveying drive unit, the conveying drive unit is used for driving the clamping unit to move back and forth along the conveying platform, the clamping unit comprises an upper clamping block, a lower clamping block and a clamping drive device, the upper clamping block is positioned above the conveying platform, the lower clamping block is positioned below the conveying platform, serrated projections arrayed at intervals are arranged on the lower clamping block, a through groove matching with the projections is arranged on the conveying platform, and the clamping drive device is used for driving the upper clamping block and the lower clamping block to move oppositely to enable the projections to penetrate through the through groove so that the projections and the upper clamping block jointly act to clamp the diaphragm bags positioned on the conveying platform. The conveying and slitting device for the diaphragm bags is accurate in conveyance and convenient to control.

Description

technical field

[0001] The invention relates to a lithium ion manufacturing machine, in particular to a conveying and cutting device for a diaphragm bag. Background technique

[0002] In the existing method of manufacturing large-scale lithium-ion power battery cells by first making diaphragm bags and then stacking pole pieces, the pre-cut pole pieces are wrapped with two layers of diaphragms, and then welded by heat welding, and the pole pieces are welded at a certain distance Wrapped in two layers of membrane, and conveyed as a whole to the cutting mechanism, cut into individual membrane bags. In the transmission process, the circular belt traction is generally adopted, and the upper and lower scissors are used to cut. The circular belt traction has no positioning and there is a gap between the two belts, which may easily cause traction deviation, which affects the front-end welding and rear-end cutting action; the upper and lower scissors are used to cut. There are defec...

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