Cold rolling equipment for thinning aluminum foil for double-sided photocell tab

Abstract

The invention discloses cold rolling equipment for a thinning aluminum foil for a double-sided photocell tab, comprising a base. A cold rolling chamber is arranged in the middle of the top of the base; two sets of positioning frames are arranged on one side in the cold rolling chamber; a first roller set and a second roller set are arranged at the top of one set of positioning frames and the bottom of the other set of positioning frames, respectively; connecting bases are arranged at the two ends of one side in the base; and the middle positions of the two sets of connecting bases are sleeved with limiting rollers. Lifting adjustment of two sets of second cold rolling rollers and first cold rolling rollers is matched with the thickness of an aluminum foil for adjusting contact; meanwhile, under mutual cooperation of limiting cold rolling assemblies, the upper surface, the lower surface and the side surface of a conveyed aluminum foil can be subjected to contact positioning; and through the first roller set, the second roller set and secondary rollers of limiting rollers, the stability of the aluminum foil in the conveying period and the cold rolling work is effectively improved, and the possibility that the aluminum foil deforms under the multiple extrusion effect is restrained.

Description

technical field [0001] The invention relates to the technical field of aluminum foil production, in particular to cold rolling equipment for thinning the aluminum foil used for double-sided photocell tabs. Background technique [0002] With the country's continuous investment in the new energy industry, more and more manufacturers have begun to increase research on new energy lithium battery products, and the battery ear, one of the key materials for new energy lithium batteries, has also attracted more and more attention. At present, the common battery tab materials in the market are mainly 1060-O state-0.15mm pure aluminum series, which mainly has two defects: on the one hand, the mechanical properties such as poor tensile strength, generally 75MPa , especially poor elongation performance, generally at 14%, and poor formability, which is not conducive to subsequent processing; on the other hand, with the improvement of endurance performance by automobile manufacturers, the...

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Problems solved by technology

[0002] With the country's continuous investment in the new energy industry, more and more manufacturers have begun to increase research on new energy lithium battery products, and the battery ear, one of the key materials for new energy lithium batteries, has also attracted more and more attention. At present, the common battery tab materials in the market are mainly 1060-O state-0.15mm pure aluminum series, which mainly has two defects: on the one hand, the mechanical properties such as poor tensile strength, generally 75MPa , especially poor elongation performance, generally at 14%, and poor formability, which is not conducive to subsequent processing; on the other hand, with the improvement of endurance performance by automobile manufacturers, the thickness of 0.15mm has been unable to meet the energy density. In the production process of the aluminum foil material of the battery tab, the battery tab is generally thinned and the mechanical properties are strengthened by cold rolling operation

[0003] When the current aluminum foil is produced in cold rolling, it is often necessary to repeatedly squeeze the aluminum foil rolls. In order to ensure the thinning effect of the aluminum foil, the required extrusion force will gradually increase with the production quality of the aluminum foil. However, in the actual cold rolling of aluminum foil At the same time, due to the need for frequent contact rolling, the side of the aluminum foil is prone to deformation, and according to the increasing demand for thinning the aluminum foil, the possibility of deformation will gradually increase, reducing the anti-deformation effect of the aluminum foil during cold rolling. Reduce the qualified rate of aluminum foil production; during the cold rolling and transportation of aluminum foil, because there is no annealing treatment during the period, the mechanical properties of the aluminum foil are poor and the hardness is too high, which makes the implementation of subsequent cold rolling and extrusion difficult and unsatisfactory. When aluminum foil is cold-rolled, four sets of cold rolls are generally used for operation, but the thickness and width of the aluminum foil vary with the change of model and processing, and need to be adjusted and changed according to the shape of the aluminum foil, but the internal structure of the device is intertwined and complicated, and it is difficult to operate manually. However, automatic operation is not easy to clamp and fit according to the standard model of aluminum foil, which leads to a decrease in the efficiency and precision of aluminum foil cold rolling, and reduces the convenience and practicability of the device.

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