Aluminum plastic film shell forming device and using method thereof

Abstract

The invention discloses an aluminum plastic film shell forming device which comprises a concave mould plate and a pressing plate. The concave mould plate is fixedly arranged; the top surface of the concave mould plate is used for placing an aluminum plastic film; a concave pit is formed in the top surface of the concave mould plate; and the concave pit corresponds to a sunken part which needs to be formed in shape, of an aluminum plastic film shell. The pressing plate can be arranged above the concave mould plate in an up-down sliding mode; the pressing plate can slide to the position where the pressing plate covers the top surface of the concave mould plate; the pressing plate and the concave mould plate can jointly tightly press the aluminum plastic film to enable an airtight containing cavity to be formed between the pressing plate and the aluminum plastic film; an air inlet channel is formed in the pressing plate and communicates with the airtight containing cavity; and air is pumped into the airtight containing cavity through the air inlet channel, and the middle of the top side of the aluminum plastic film can be deformed under the air pressure effect to be sunken into the concave pit.

Description

technical field [0001] The invention relates to a production process of an aluminum-plastic film case for a flexible packaging battery, in particular to an aluminum-plastic film case forming device and a method for using the above-mentioned aluminum-plastic film case forming device. Background technique [0002] Lithium batteries are common small devices that can provide electrical energy and are widely used in mobile phones, laptop computers, electric vehicles, and charging energy storage devices. With the development of lithium batteries, the application of aluminum-plastic film flexible packaging lithium batteries is increasing. Common soft-packed lithium batteries need aluminum-plastic film shells with depressions to hermetically package bare cells. Therefore, in the production process of flexible-packaged lithium batteries, the above-mentioned depressions need to be formed on the basis of aluminum-plastic film coil raw materials. [0003] In the prior art, the forming ...

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Problems solved by technology

If these residual materials are not cleaned up in time, it may cause the subsequent forming of the aluminum-plastic film shell to be perforated and cannot be used; moreover, in the process of stretch forming, the hard extrusion of the convex plate to the aluminum-plastic film may directly cause the aluminum-plastic film to be stretched. The above defects reduce the safety of the battery produced by the aluminum-plastic film case

In addition, the convex formwork and the concave formwork need to be used together, and the machining accuracy requirements for the cooperation between the two are high, resulting in high equipment production costs and long cycle times

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