Rolling equipment

Abstract

The present invention provides a rolling apparatus capable of conveying a material to a coiler without breaking the rolled material even if a difference in the elongation amount of the material in the longitudinal direction occurs in the width direction of the material due to rolling. All the guide rollers used for conveying the rolled material are elastic guide rollers that are elastically deformed by the tension generated by the material. As some guide rolls, guide rolls that extend the material in the width direction of the material may be used. In addition, a cutter that cuts the material at a position between the coated parts of the material is installed downstream of the main body of the roller press, so that all guide rollers used between the main body of the roller press and the cutter are tensioned by the material. And elastically deformable elastic guide rollers.

Description

technical field [0001] The present invention relates to rolling equipment, in particular to rolling equipment for rolling electrode materials and the like. Background technique [0002] The positive or negative electrode materials of lithium-ion batteries, capacitors, etc. are coated with electrode active materials on both sides of strip-shaped substrates such as aluminum foil, copper foil, etc. (metal foil collectors). Rolling (compression processing) is carried out by rolling equipment in such a way as to reduce the density and make the thickness uniform. After such rolling, the electrode material is wound into a coil, and the coil is shipped as an electrode material product or transferred to the next step. [0003] Ideal rolling processing is such that only the active material is compressed without rolling the foil as the base material. But actually, when the rolling equipment performs compression processing, the foil as the base material is slightly rolled. On the oth...

AI Technical Summary

Problems solved by technology

During the process of handling and coiling, the generated folds develop into deeper folds or fractures, and there is a possibility that the transport and coiling cannot be carried out.

[0004] In particular, wrinkles caused by the extension difference between the coated part and the uncoated part, in the case of rolling the electrode material as follows, the wrinkles intersect to become deeper wrinkles in the uncoated part between the coated parts or cracked, there is a problem that it is impossible to transport the electrode material, which is formed in stripes in the longitudinal direction of the material by alternately forming coated parts and uncoated parts in the width direction of the foil as the base material. Electrode material of coating part

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