Lithium ion battery diaphragm cutting machine

Abstract

The invention discloses a lithium ion battery diaphragm cutting machine and relates to the technical field of production of lithium ion batteries. The lithium ion battery diaphragm cutting machine comprises a frame, a motor, a synchronous belt and a cutting device, wherein the frame comprises a support frame, roller frames and a cutting platform; the roller frames comprise a first roller frame, a second roller frame and a third roller frame; an unwinding roller is arranged at the upper part of the first roller frame; a first positioning roller is arranged at the lower part of the first roller frame; a second positioning roller and a finished product roller are arranged on the second roller frame; a residual material roller is arranged on the third roller frame; the motor is connected with the two positioning rollers via the synchronous belt; the cutting device is arranged on the cutting platform and comprises vertical plates, a threaded shaft, a sliding block, a blade, a limiting rod and a transverse plate; the threaded shaft is mounted at the upper parts of the two vertical plates; the sliding blocks is mounted on the threaded shaft; the blade is arranged at the lower part of the sliding block; the upper part of the sliding block is connected with the limiting rod; the transverse plate is arranged at the tops of the two vertical plates; a limiting elongated slot is formed in the transverse plate. The lithium ion battery diaphragm cutting machine is simple in structure, convenient to use, high in cutting efficiency and high in cutting accuracy; the demand of lithium ion battery diaphragms in small-batch production of lithium ion batteries can be met.

Description

technical field [0001] The invention relates to the technical field of lithium-ion battery manufacturing, in particular to a lithium-ion battery diaphragm cutting machine. Background technique [0002] The lithium-ion battery separator is the main component of the lithium-ion battery. Its main function is to separate the positive and negative electrodes of the battery, prevent the two electrodes from contacting and short circuit, and also have the function of allowing electrolyte ions to pass through. Lithium-ion battery separator manufacturers produce separators in parent rolls, but the width of the parent rolls generally cannot be directly used in the production of lithium batteries. It needs to be cut according to the required size before it can be applied to the production of lithium-ion batteries. [0003] Lithium-ion battery diaphragm slitting machine is one of the key equipment in the production process of lithium-ion battery material diaphragm. Its working method is ...

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Problems solved by technology

[0004] Larger diaphragm slitters are large in size and high in cost, and are mainly used in the mass production of diaphragms. However, in the research and development stage of lithium-ion batteries and small batch production trials, the number of diaphragms required is not particularly large. On the contrary, the slitting machine is not convenient for the demand, and it needs to be adjusted, and the operation is inconvenient. However, the efficiency of manual slitting is low, the accuracy cannot meet the required requirements, and improper operation is easy to hurt; in addition, the transverse strength of the diaphragm during slitting should not be too large. Increased the difficulty of cutting

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