Double-platform circulating sectional type turret lamination device and lamination process thereof

Abstract

The invention discloses a double-platform circulating sectional type turret lamination device and a lamination process thereof. The double-platform circulating sectional type turret lamination devicecomprises a turret mechanism and lamination mechanisms; the turret mechanism is arranged between two feeding vacuum pull bodies; positions where vacuum suction plates connected to the turret mechanismare perpendicular to the feeding vacuum pull bodies, are lamination initial positions; two lamination mechanisms are provided and are symmetrically arranged on two sides of the turret mechanism in atransverse direction respectively; two lamination spaces are respectively formed on two sides of the central line of the turret mechanism extending along the longitudinal direction of the turret mechanism; and the corresponding rotation angles of the two lamination spaces are 180 degrees respectively; each lamination mechanism is in linkage with the turret mechanism through one transmission assembly; and when the turret mechanism rotates to perform lamination, two groups of pole sheet pressing assemblies alternately press laminated pole sheets uninterruptedly. With the double-platform circulating sectional type turret lamination device and the lamination process thereof adopted, sequential alternate lamination on the double lamination mechanisms is simultaneously realized in the same rotation period; and therefore, lamination efficiency is improved, the uninterrupted lamination of the platforms is realized, the uninterrupted compression of the pole sheets is realized, and the displacement of the pole sheets is avoided.

Description

technical field [0001] The invention relates to the field of electric core manufacturing, in particular to a dual-platform circulation segmented turret stacking device and a stacking process thereof. Background technique [0002] Currently, global lithium battery companies are mainly concentrated in South Korea, China and Japan. Japan monopolized the global lithium battery industry before the 21st century, and its main product is secondary lithium batteries. Later, with the research and development of lithium battery production technology in South Korea and China, it gradually occupied a certain market in the world. Famous lithium battery manufacturers abroad include Sanyo, Bosch, Samsung, Panasonic, Sony, Toyota, Toshiba, Ford, GM, Mercedes-Benz, etc. These manufacturers generally have a complete set of lithium battery production lines, including lithium battery winding equipment and tab welding equipment, which are generally provided by specialized equipment manufacturer...

AI Technical Summary

Problems solved by technology

[0005] Specifically, a key part involved in the research and development of the automatic stacking machine is the structural design of the stacking platform, which is used to provide support and load-bearing and pole piece pressing functions during the stacking process of positive and negative pole pieces; The existing lamination platform has the following technical problems that need to be solved: 1. Due to the limited number of pole piece laminations of the battery cell, it is necessary to remove the stacked pole piece after the pole piece lamination of a single battery cell is completed, and then proceed again The lamination will cause the lamination to stop during the process of retrieving the pole piece, which will affect the production capacity; 2. In the design process of the lamination machine, the unloading manipulator is set under the feeding vacuum pulling body to make full use of the installation space. The structure causes the feeding robot to take the pole pieces from the stacking platform, causing movement interference caused by vacuum pulling; 3. When the pole pieces are continuously stacked on the stacking platform, the stacked pole pieces need to be pressed and fixed to To prevent its position from shifting, and the pole pieces need to be stacked uninterruptedly, which requires the synchronous coordination of the pressing plate and the stacking action to realize uninterrupted pressing of the pole pieces, so as to avoid interference with the stacking of the pole pieces and affect the stacking efficiency

[0006] Another key part involved in the research and development of the automatic stacking machine is the structure and process design of the stacking and feeding device, which is used to take out the positive and negative electrodes in sequence and stack them alternately on the stacking mechanism. On the chip platform, the internal structure of stacked cells with positive and negative stacking is formed; in the actual R&D design and production process, the following technical bottlenecks need to be broken through in the structure and process design of the stack feeding device: 1. The lamination speed of the domestic lamination machine is 1.5-2 / pin, which cannot adapt to and match the pole piece export speed after the improvement of the previous pole piece cutting process, resulting in lamination becoming the key to restricting the capacity increase of the entire cell production line Node; 2. There are repeated paths between the pole piece removal, detection, calibration, lamination and other process steps, resulting in a long time-consuming for the entire lamination to take and feed

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