Lithium battery pole piece prime coating machine capable of performing clearance coating

Abstract

The invention discloses a lithium battery pole piece prime coating machine capable of performing clearance coating. The machine comprises an unwinding roller and a winding roller, wherein an unwinding traction roller is arranged on one side of the unwinding roller, an A-face gravure coating roller is arranged on one side of the unwinding traction roller, a first stripping mechanism is arranged on one side of the A-face gravure coating roller, an A-face drying mechanism is arranged on one side of the first stripping mechanism, a B-face gravure coating roller is arranged on one side of the A-face drying mechanism, a second stripping mechanism is arranged on one side of the B-face gravure coating roller, and a B-face drying mechanism is arranged on one side of the second stripping mechanism. The machine relates to the technical field of lithium battery production. According to the lithium battery pole piece prime coating machine capable of performing clearance coating, the problems that continuous coating cannot be performed and the running speed and the running precision of the whole machine are inevitably influenced as clearance coating is realized by changing a position of a coating roller or increasing a coating height of the coating roller in an existing coating machine are effectively solved, and therefore, the working efficiency and the coating precision of the coating machine are reduced.

Description

technical field [0001] The invention relates to the technical field of lithium battery production, in particular to a lithium battery pole piece primer coater capable of gap coating. Background technique [0002] The traditional lithium battery pole piece primer coaters all use gravure engraved with blank areas to process the pole pieces. When the spacing between the blank areas is relatively large, such as more than 3,000 mm, the gravure cannot be processed, and some manufacturers have developed gravure roller clutches. Action to complete the blank area function, can be achieved but the working speed is too low, only 8~10 m / min working speed, does not have the conditions for mass production. [0003] In order to realize the coating on both sides of the substrate, the announcement number is CN105921362A, the patent name is "a coating machine for front and back coating alignment system" and the announcement number is CN106626723A, the patent name is "a double-sided coating sy...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the existing technology, the present invention provides a lithium battery pole piece primer that can be used for gap coating. Its overall structural design realizes that the base material can be automatically unwound and pulled and conveyed on one piece of equipment. , Tension transmission, A-side coating, A-side gap gasket peeling, A-side drying, B-side coating, B-side gap gasket peeling, B-side drying and winding, etc., which not only make the whole The coating process does not need to adjust or change the structure of the gravure coating roller and does not need to adjust or change the tension and speed of the substrate conveying, so that the conveying tension of the substrate and each roller can work continuously at a constant speed without stopping. It solves the problem that the existing equipment cannot process or can process but the work efficiency is low when the interval of the blank area is relatively large

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