Winding auxiliary device for lithium battery production

Abstract

The invention discloses a winding auxiliary device for lithium battery production, belonging to the technical field of lithium battery production equipment. The winding auxiliary device comprises a fixed bottom plate, wherein two sides of the upper end of the fixed bottom plate are provided with supporting frames, the upper end of the left supporting frame is provided with a conveying shaft, the middle part of the conveying shaft is provided with a conveying wheel, the middle part of the right supporting frame is provided with a transmission shaft, the middle part of the transmission shaft isprovided with a winding wheel, the middle part of the front end of the winding wheel is provided with a winding shaft, the middle part of the winding shaft is provided with a fixed groove, the middlepart of the fixed bottom plate is sequentially provided with a detection mechanism, a cutting mechanism, a flattening roller group and a flattening block from left to right, the detection mechanism comprises a U-shaped frame, an ultrasonic transmitter is arranged at the upper end inside the U-shaped frame, an ultrasonic receiver is arranged at the upper end inside the U-shaped frame, and the cutting mechanism comprises a cutting cylinder and a cutting block. According to the scheme of the invention, the detection and cutting of pole pieces in the winding and conveying process can be realized through the cooperation of the detection mechanism and the cutting mechanism, so that the winding quality of the pole pieces in the later period can be greatly increased, and the advantages of strong practicability and high reliability can be achieved.

Description

technical field [0001] The invention relates to the technical field of lithium battery production equipment, in particular to a winding auxiliary device for lithium battery production. Background technique [0002] "Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. In 1912, the lithium metal battery was first proposed and studied by Gilbert N. Lewis. In the 1970s, M. S. Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream now. [0003] Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Li-ion batteries do not contain metallic lithium and are rechargeab...

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Problems solved by technology

[0005] Chinese patent (notification number: CN107749497U) discloses a winding auxiliary device for lithium battery production, including support one, pole piece conveying assembly, winding equipment, support two and battery case conveying assembly, the pole piece conveying assembly is installed on Supporting one inside, the pole piece conveying assembly includes a longitudinal conveyor belt, an installation cylinder, a spring one, a guide rod, a carrier plate, a handle, a pressure roller, a through groove, a suspension seat and a rotating shaft, and the winding device is arranged on the pole piece conveying The right side of the component, and the winding equipment is installed inside the support 2. Although this device improves the winding and docking effect of the pole pieces to a certain extent, it is all in actual operation, but it cannot screen the broken and cracked pole pieces. Not strong, therefore, needs further improvement

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