Coating machine head sieving device

Abstract

The invention discloses a coating machine head sieving device which includes an upper funnel (1), a lower funnel (4) and a flow divider (6). The coating machine head sieving device is characterized inthat the large opening ends of both the upper funnel (1) and the lower funnel (4) are in buckled connection, a screen cloth (2) is mounted at the bottom of the upper funnel (1), the lower funnel (4)is fixed in a fixing support (5), the bottom of the lower funnel (4) is connected with the flow divider (6), the bottom of the flow divider (6) is provided with a plurality of flow dividing holes (7),the upper funnel (1) and the lower funnel (4) are in symmetric connection through a connecting ring A (3), the lower funnel (4) is connected with the flow divider (6) through a connecting ring B (8),the periphery of the screen cloth (2) is sealed through a seal ring, and the flow dividing holes (7) are evenly formed at the bottom of the flow divider (6). The coating machine head sieving device is excellent, safe, economical, efficient and convenient to operate, the battery coating uniformity is high, the electrical performance stability is high, and the coating machine head sieving device issuitable for popularization and use of the screening in the position of a trough feeding pipe of a lithium ion battery coating machine head.

Description

technical field [0001] The invention belongs to the technical field of lithium ion battery production devices, and in particular relates to a screening device for a coating machine head. Background technique [0002] Lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on the movement of lithium ions between the positive and negative electrodes to work. The quality of lithium-ion battery coating directly affects the safety, capacity development and cycle stability of the later battery, and the quality of coating is directly affected by the quality of the slurry. [0003] In the prior art, the sieving method of aluminum shell lithium-ion batteries is mostly manual sieving in the batching room. As the manual sieving process takes a long time, the slurry is easy to absorb water and dust during the process, which affects the quality of the slurry, and the filtered slurry will cause the slurry to settle, which will affect the consistency of the co...

AI Technical Summary

Problems solved by technology

As the manual sieving process takes a long time, the slurry is easy to absorb water and dust during the process, which affects the quality of the slurry, and the filtered slurry will cause the slurry to settle, which will affect the consistency of the coating thickness and cause battery damage. The unsafety and instability of electrical performance

A very small number of mechanical sieving also has various problems such as complex equipment structure and poor operability

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