Ear foil collecting device

Abstract

The invention discloses an ear foil collecting device. The device comprises a transmission shaft; the transmission shaft is connected with a closed end of an expansion cylinder; an open end of the expansion cylinder is provided with an expansion piece; the expansion piece is connected with a propelling device; the propelling device propels the expansion piece; and the expansion piece extrudes the open end of the expansion cylinder to enable the expansion cylinder to expand. The collecting device does not need compressed air, and is low in failure rate and long in service life, and an eccentric cam structure of a quick-locking wrench is adopted, so that the actions of contraction and expansion are simple and convenient.

Description

technical field [0001] The invention relates to the field of foil producing machines, in particular to an ear foil collecting device. Background technique [0002] In the production process of electrolytic copper foil, due to the influence of the edge effect of the cathode roll, the copper foil at the edge of the cathode roll is thinner than that in the middle. Therefore, when the foil machine is rewinding, it is necessary to cut off the thinner part of the edge, and the cut copper foil is also called ear foil. At present, the ear foil collection device is mainly based on the air expansion shaft. When the inflatable shaft works, it needs to supply compressed air, and the compressed air needs to install related equipment and lay pipelines, which requires a large investment. Moreover, the failure rate of the inflatable shaft itself is relatively high, which increases labor costs and maintenance costs. [0003] Aiming at the problems in the related technologies, no effective...

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