Slit type coating head

A coating head and slit technology, which is applied in the field of slit coating heads, can solve the problems of difficult to accurately coat, reduce the service life of the gasket, affect the coating accuracy, etc., so as to improve the coating accuracy, save the production cost, The effect of improving coating efficiency

Pending Publication Date: 2019-03-19
SHENZHEN MANST TECH CO LTD
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Problems solved by technology

For the occasions where two kinds of slurry need to be coated, for example, the coating slurry required for the edge part is different from the coating slurry required for the middle part. The pressure of the slurry medium is often different, so the gasket is easy to deform in actual application, which seriously affects the coating accuracy and reduces the service life of the gasket. It is also difficult to achieve accurate coating at high speeds and the overall coating quality poor

Method used

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Embodiment Construction

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0033] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating ...

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Abstract

The invention provides a slit type coating head. The coating head comprises an upper die, a lower die and a spacer clamped between the upper die and the lower die; the lower die is provided with a first lip edge portion, the upper die is provided with a second lip edge portion opposite to the first lip edge portion, the lower die is provided with at least one first feeding channel, the upper die is provided with at least one second feeding channel, and the spacer is provided with at least one opening and at least one groove; and a first slit channel is formed among the upper die, the opening and the lower die, a second slit channel is formed between the groove and the upper die, a first discharge port is formed among the first lip edge portion, the opening, and the second lip edge portion,a second discharge port is formed among the first lip edge portion, a notch of the groove, and the second lip edge portion, wherein the first feeding channel, the first slit channel and the first discharge port communicate in sequence to form a first flow channel, and the second feeding channel, the second slit channel and the second discharge port communicate in sequence to form a second flow channel which is isolated from the first flow channel. According to the slit type coating head, at least two kinds of thick liquids can be coated at the same time, and thus the coating efficiency and precision are improved.

Description

technical field [0001] The invention relates to the field of coating technology, in particular to a slit coating head which is particularly suitable for precise coating on foil materials. Background technique [0002] Existing slit coating heads usually consist of an upper mold, a lower mold, and a gasket between the upper mold and the lower mold. The gasket can be arranged to form a discharge port on one side between the upper mold and the lower mold The slit channel through which the slurry is extruded to the discharge port for coating operation. For the occasions where two kinds of slurry need to be coated, for example, the coating slurry required for the edge part is different from the coating slurry required for the middle part. The pressure of the slurry medium is often different, so the gasket is prone to deformation in actual application, which seriously affects the coating accuracy and reduces the service life of the gasket. It is also difficult to achieve accurate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C5/02B05C11/10
CPCB05C5/0258B05C11/1036B05C11/1044
Inventor 彭建林刘宗辉王精华
Owner SHENZHEN MANST TECH CO LTD
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