A slit coating machine cutter head

Abstract

The present invention discloses a slit coating machine cutter head, which comprises an upper mold, a stopper and a lower mold fixed in sequence from left to right; a first liquid outlet groove is provided on the inner side of the upper mold, the first liquid outlet groove extends to the lower surface of the upper mold, a second liquid outlet groove is provided on the inner side of the lower mold, the second liquid outlet groove extends to the lower surface of the lower mold, the stopper is arranged between the upper mold and the lower mold and completely covers the lower ends of the first and second liquid outlet grooves and forms the first and second liquid outlets, a liquid groove is provided in the middle of the side of the stopper, and a liquid inlet hole is provided on the outer side of the lower mold. The coating machine cutter head can extrude the coating liquid from two places, thereby completing the two-layer film forming effect. When the thickness of each film forming layer is 10μm, the coating machine cutter head can form a film of 20μm at a time, doubling the film forming thickness, greatly reducing the operation time and operation cost.

Description

Technical Field

[0001] The present invention relates to the technical field of coating equipment, and more specifically, to a knife head of a slit coating machine. Background Art

[0002] The traditional coating machine blade is generally composed of three parts, including an upper mold, a lower mold, and a thin gasket installed between the upper mold and the lower mold. During the coating process, the coating liquid is squeezed out from the gap between the upper and lower molds under pressure, and liquid beads are formed between the coating liquid and the moving substrate and transferred to the surface of the substrate, thereby forming a wet film. The formation of liquid beads is the key to film formation. However, the single film thickness of the traditional coating machine blade is limited by the structure. It cannot complete a film thickness of more than 12μm in one coating. Generally, it can only coat 10μm, and one coating action can only complete a layer of film effect. If the coating thickness needs to be increased or a multi-layer film effect needs to be completed, the product needs to be coated multiple times, which greatly increases the operation time and cost. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a slit coater cutter head, in which the coating liquid is injected into the coater cutter head through the liquid inlet hole of the lower mold. Since the block is arranged between the upper mold and the lower mold and completely covers the lower ends of the first liquid outlet groove and the second liquid outlet groove and forms the first liquid outlet and the second liquid outlet, the coater cutter head can extrude the coating liquid from two places, thereby completing the two-layer film-forming effect. When the thickness of each film layer is 10μm, the coater cutter head can form a film of 20μm at a time, doubling the film thickness and greatly reducing the operation time and operation cost.

[0004] The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0005] In order to solve the above technical problems, the present invention provides a slit coater tool head, which includes an upper mold, a block and a lower mold fixed in sequence from left to right; a first liquid outlet groove is opened on the inner side of the upper mold, and the first liquid outlet groove extends to the lower surface of the upper mold; a second liquid outlet groove is opened on the inner side of the lower mold, and the second liquid outlet groove extends to the lower surface of the lower mold; the block is arranged between the upper mold and the lower mold and completely covers the lower ends of the first liquid outlet groove and the second liquid outlet groove and forms a first liquid outlet and a second liquid outlet; a liquid groove is opened in the middle of the side surface of the block, and a liquid inlet hole is opened on the outer side of the lower mold.

[0006] Furthermore, a third liquid outlet groove is provided on the lower surface of the blocking block, the third liquid outlet groove is communicated with the liquid passage groove, and a third liquid outlet is formed on the lower surface of the third liquid outlet groove.

[0007] Furthermore, the widths of the first liquid outlet, the second liquid outlet and the third liquid outlet are equal.

[0008] Furthermore, the film thickness of the first liquid outlet, the second liquid outlet and the third liquid outlet are all 10 μm.

[0009] Furthermore, there are multiple stoppers, which are arranged in sequence from left to right.

[0010] Furthermore, there are three blocks, including a first block, a second block and a third block which are sequentially arranged from left to right.

[0011] Furthermore, there are three liquid inlet holes, which are circular holes.

[0012] Furthermore, the upper mold, the stopper and the lower mold are respectively provided with a plurality of threaded holes corresponding to each other.

[0013] Furthermore, the coaxiality of the plurality of threaded holes is 3 μm.

[0014] Furthermore, the surface roughness of the fitting surfaces of the upper mold, the stopper and the lower mold is 0.1 μm-0.2 μm.

[0015] The present invention has the following beneficial effects:

[0016] The coating liquid is injected into the coating machine head through the liquid inlet hole of the lower mold. Since the block is arranged between the upper mold and the lower mold and completely covers the lower ends of the first liquid outlet groove and the second liquid outlet groove and forms the first liquid outlet and the second liquid outlet, the coating machine head can extrude the coating liquid from two places, thereby completing the two-layer film-forming effect. When the thickness of each film is 10μm, the coating machine head can form a film of 20μm at a time, doubling the film thickness and greatly reducing the operation time and operation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a slit coater cutter head provided by the present invention.

[0018] Figure 2 for Figure 1 Schematic diagram from another angle.

[0019] Figure 3 for Figure 1 Bottom view of . DETAILED DESCRIPTION

[0020] The present invention is described in detail below with reference to the examples. The examples are only preferred embodiments of the present invention and are not intended to limit the present invention.

[0021] See also Figures 1 to 3, is a slit coater cutter head provided by the present invention, which includes an upper mold 1, a stopper 2 and a lower mold 3 fixed in sequence from left to right; a first liquid outlet groove 4 is opened on the inner side of the upper mold 1, and the first liquid outlet groove 4 extends to the lower surface of the upper mold 1, and a second liquid outlet groove 5 is opened on the inner side of the lower mold 3, and the second liquid outlet groove 5 extends to the lower surface of the lower mold 3. The stopper 2 is arranged between the upper mold 1 and the lower mold 3 and completely covers the lower ends of the first liquid outlet groove 4 and the second liquid outlet groove 5 and forms a first liquid outlet 100 and a second liquid outlet 200, a liquid groove 6 is opened in the middle of the side of the stopper 2, and a liquid inlet hole 7 is opened on the outer side of the lower mold 3. The coating liquid is injected into the coating machine head through the liquid inlet hole 7 of the lower mold 3. Since the block 2 is arranged between the upper mold 1 and the lower mold 3 and completely covers the lower ends of the first liquid outlet groove 4 and the second liquid outlet groove 5 and forms the first liquid outlet 100 and the second liquid outlet 200, the coating machine head can squeeze out the coating liquid from two places, thereby completing the two-layer film forming effect. When the thickness of each film is 10μm, the coating machine head can form a film of 20μm at a time, doubling the film thickness and greatly reducing the operation time and operation cost.

[0022] Furthermore, a third liquid outlet groove 8 is provided on the lower surface of the block 2, and the third liquid outlet groove 8 is in communication with the liquid passage groove 6, and a third liquid outlet 300 is formed on the lower surface of the third liquid outlet groove 8. Due to the formation of the third liquid outlet 300, the coating machine head can extrude the coating liquid from three places, thereby completing a three-layer film forming effect. When the thickness of each film is 10 μm, the coating machine head can form a film of 30 μm at a time, which doubles the film thickness and greatly reduces the operation time and operation cost.

[0023] Furthermore, the widths of the first liquid outlet 100 , the second liquid outlet 200 and the third liquid outlet 300 are equal.

[0024] Furthermore, the film thickness of the first liquid outlet 100 , the second liquid outlet 200 and the third liquid outlet 300 are all 10 μm.

[0025] Furthermore, there are multiple stoppers 2 and they are arranged in sequence from left to right.

[0026] Furthermore, there are three blocks 2, including a first block, a second block and a third block arranged in sequence from left to right. Since there are three blocks 2, each block 2 is provided with a liquid outlet, so that the liquid outlets are increased to five, so that the coating machine head can squeeze out the coating liquid from five places, thereby completing the five-layer film forming effect. When the thickness of each film is 10μm, the coating machine head can form a film of 50μm at a time, increasing the film thickness by four times, greatly reducing the operation time and operation cost.

[0027] In other implementations, the number of the blocks 2 can be adjusted according to actual needs, which should all fall within the protection scope of the present invention.

[0028] Furthermore, there are three liquid inlet holes 7 which are circular holes. The three liquid inlet holes 7 can increase the extrusion speed. When the number of the blocks 2 is greater, the number of liquid inlet holes 7 can be increased according to actual conditions to ensure that the liquid inlet speed is consistent with the extrusion speed.

[0029] Furthermore, the upper mold 1, the stopper 2 and the lower mold 3 are respectively provided with a plurality of threaded holes corresponding to each other.

[0030] Furthermore, the coaxiality of the plurality of threaded holes is 3 μm.

[0031] Furthermore, the surface roughness of the fitting surfaces of the upper mold 1, the stopper 2 and the lower mold 3 is 0.1 μm-0.2 μm.

[0032] The above embodiments merely express the implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. Any technical solution obtained in the form of equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A slit coater cutter head, characterized in that: It includes an upper mold, a stopper and a lower mold fixed in sequence from left to right; a first liquid outlet groove is opened on the inner side of the upper mold, and the first liquid outlet groove extends to the lower surface of the upper mold; a second liquid outlet groove is opened on the inner side of the lower mold, and the second liquid outlet groove extends to the lower surface of the lower mold; the stopper is arranged between the upper mold and the lower mold and completely covers the lower ends of the first liquid outlet groove and the second liquid outlet groove and forms a first liquid outlet and a second liquid outlet; a liquid passage groove is opened in the middle of the side surface of the stopper, a liquid inlet hole is opened on the outer side of the lower mold, and a third liquid outlet groove is opened on the lower surface of the stopper, and the third liquid outlet groove is connected with the liquid passage groove, and the lower surface of the third liquid outlet groove forms a third liquid outlet.

2. The slit coater cutter head according to claim 1, characterized in that: The widths of the first liquid outlet, the second liquid outlet and the third liquid outlet are equal.

3. The slit coater blade according to claim 2, characterized in that: The film thickness of the first liquid outlet, the second liquid outlet and the third liquid outlet are all 10 μm.

4. The slit coater blade according to claim 1, characterized in that: There are multiple stoppers, which are arranged in sequence from left to right.

5. The slit coater blade according to claim 4, characterized in that: There are three stoppers, which include a first stopper, a second stopper and a third stopper which are sequentially arranged from left to right.

6. The slit coater cutter head according to claim 1, characterized in that: There are three liquid inlet holes, which are circular holes.

7. The slit coater cutter head according to claim 1, characterized in that: The upper mold, the stopper and the lower mold are respectively provided with a plurality of threaded holes corresponding to each other.

8. The slit coater blade according to claim 7, characterized in that: The coaxiality of the plurality of threaded holes is 3 μm.

9. The slit coater cutter head according to claim 1, characterized in that: The surface roughness of the fitting surfaces of the upper mold, the stopper and the lower mold is 0.1 μm-0.2 μm.

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