Interval type coating machine head

A coating machine and gap-type technology, which is applied to the surface coating liquid device, coating, etc., can solve the problems of high production cost, excessive diameter, heavy weight of the upper knife edge, etc., and achieve good stirring effect and uniform thickness Stabilization and accuracy-enhancing effects

CN102357441AActive Publication Date: 2012-02-22SHENZHEN XINYUREN TECH
6 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-02-22

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

An interval type coating machine head comprises a drive roll and a hopper located at one side of the drive roll and feeding the drive roll, an upper knife edge located above the drive roll, arranged along a same direction of the axial direction of the drive roll and used for evenly distributed slurry, a back roll used for delivering pole pieces and a reciprocate driving device used for driving the back roll and the drive roll to be in interval contact. The upper knife edge is a plate-type upper knife edge which comprises a three-dimensional hanging body, and a plate-type blade is arranged on the lower bottom face of the three-dimensional hanging body which is in a same plane with a coating line of the coating machine head. The interval type coating machine head is high in uniformity of coating piece thickness and accuracy, free of limitation of mounting position and height, capable of removing accumulated material pressure between included angles. Rotational speed of a feeding roll can be freely controlled, feeding amount on the curved surface of the drive roll is even and unanimous, the feeding roll has good stirring effect, the slurry can be avoided depositing in the hopper, andinfluences on the pole piece of dry materials are avoided. Two edges of the pole piece can not wrinkle.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a coating machine head, more specifically, it relates to a gap coating machine head used in the coating process of lithium-ion battery sheets. Background technique

[0002] The existing lithium-ion battery gap coating machine head generally adopts a circular drive roller 100 and a comma-shaped upper knife edge 200 structure above the drive roller 100 to coat the slurry 600, such as figure 1 As shown, since the driving roller 100 is constantly rotating during work, over time, the accumulated material 700 will be formed at the angle formed by the outer diameter of the driving roller 100 circle and the outer diameter of the upper knife edge 200 circle. After research, it is found that, The deposit 710 located above the coating line 800 in the deposit has the greatest influence on the thickness uniformity of the slurry 600 on the coated pole piece, and is located at the coating line 800 (the coating line 800 refers to the comma for...

Examples

Embodiment Construction

[0027] See Figure 4 , Figure 4What is disclosed is a gap-type coating machine head, including a driving roller 1, a hopper 2 located on one side of the driving roller 1 to feed the driving roller 1, located on the driving roller 1 and in the same direction as the axial direction of the driving roller 1 The upper knife edge arranged for evenly distributing the slurry 6, the back roller 4 used to transport the pole piece 7, and the reciprocating drive device that drives the back roller 4 to make gap contact with the driving roller 1, the upper knife edge is a plate-type upper knife edge 3, so Described plate type upper knife edge 3 comprises a three-dimensional shape hanging body 31, is provided with plate type blade 32 on the lower bottom surface 311 of described three-dimensional shape shape hanging body 31, and the lower bottom surface 321 of described plate type blade 32 and the coating of coating machine head Line 8 is in the same plane; Adopt plate blade 32 and allow th...