A slot die head for ease of positioning
By using a positioning pin cavity and a positioning rod in the slit coating head to achieve precise alignment of the first and second bodies, the problem of difficult alignment during installation in the prior art is solved, thus improving coating quality and ease of installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HONGZHENG INTELLIGENT TECH CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-21
AI Technical Summary
Existing slot coating heads are difficult to align during installation, affecting coating quality.
A positioning pin is used that penetrates through the first body and partially enters the second body. The positioning pin cavity and positioning rod achieve precise alignment of the first body and the second body, and are further fixed by the grip and fixing bolts.
It improves the installation accuracy of the slot coating head, ensures uniform coating thickness and product appearance quality, and avoids damage to the main body when the positioning pin is disassembled.
Smart Images

Figure CN224525153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating technology, and in particular to a slit coating head that is easy to position. Background Technology
[0002] Slit coating, as a coating method, is now widely used in various fields, such as adhesive tapes, synthetic leather, paper, diapers, and clothing; optical films for flat panel displays, such as wide-viewing-angle films, brightness enhancement films, anti-glare and anti-reflection films; flexible flat panel display substrates; dry film photoresists; flexible printed circuit boards; anisotropic conductive adhesives; lithium-ion batteries; lithium batteries; fuel cells; and perovskite batteries. The installation accuracy of the slit coating head plays a crucial role in the subsequent coating thickness uniformity and the appearance of the coated product.
[0003] Existing slot coating heads typically use fixing bolts to secure two bodies together, which can lead to problems such as difficulty in alignment during installation and impact on coating quality.
[0004] The aforementioned technical issues have become urgent technical challenges that need to be addressed. Summary of the Invention
[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a slit coating head that is easy to position, which facilitates the precise alignment of the first body and the second body by means of a positioning pin that penetrates through the first body and at least partially enters the second body.
[0006] To achieve the above objectives, this application provides a slit coating head that is easy to position, comprising: ontology; The body includes a first body and a second body that are arranged facing each other; The main body is provided with a positioning pin receiving cavity, which penetrates the first main body and is at least partially formed in the second main body; The locating pin is provided inside the cavity; The locating pin includes a locating rod; The dimensions of the positioning rod match the dimensions of the positioning pin cavity; When the positioning pin is installed in the body, the positioning rod passes through the positioning pin receiving cavity through the first body, and the positioning rod enters at least partially into the second body.
[0007] Furthermore, the positioning pin cavity penetrates the second body.
[0008] Furthermore, the length of the positioning rod is not less than the thickness of the body.
[0009] Furthermore, the positioning pin also includes: The gripping part is located at the end of the positioning rod facing away from the second body.
[0010] Furthermore, the gripping part is exposed on the side of the first body that faces away from the second body.
[0011] Furthermore, the positioning rod is vertically connected to the grip.
[0012] Furthermore, the main body is also provided with a fixing threaded hole, and a fixing bolt is provided in the fixing threaded hole. The fixing bolt is used to fix the first body and the second body together.
[0013] Furthermore, the main body is also provided with an inlet and an outlet, and a flow channel is provided between the inlet and the outlet; The flow channel is located inside the body.
[0014] Furthermore, the flow channel is not connected to the locating pin cavity.
[0015] Furthermore, a gasket is provided between the first body and the second body.
[0016] The slit coating head provided in this application facilitates positioning. The positioning pin's positioning rod penetrates the first body and at least partially enters the second body, thus facilitating the alignment of the first and second bodies. The positioning pin penetrates both the first and second bodies simultaneously, eliminating the distinction between front and back sides and making assembly easier. The grip provides convenient use of the positioning pin. The grip is located on the outside of the first body, further enhancing ease of use. After the first and second bodies are secured, the positioning pin can be directly removed, preventing damage caused by the positioning pin falling off during disassembly, a problem common in existing designs. The gasket prevents direct contact and impact damage to the first and second bodies during assembly.
[0017] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this application. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present application and form part of the specification. Together with the embodiments of the present application, they serve to explain the present application but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a slit coating head structure for easy positioning according to an embodiment of this application; Figure 2 This is a schematic diagram of a three-dimensional structure of a slit coating head for easy positioning according to an embodiment of this application.
[0019] Figure label: 101-First body; 102-Second body; 103-Positioning pin; 104-Fixing bolt; 105-Grip part; 106-Positioning rod; 107-Washer; 108-Outlet; 109-Inlet. Detailed Implementation
[0020] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.
[0021] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.
[0022] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.
[0023] It should be noted that the terms "first" and "second" may be used in this application only to distinguish different devices, components or parts, and are not used to define the order of functions performed by these devices, components or parts or their interdependence.
[0024] It should be noted that the terms "one" and "more" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless explicitly stated otherwise in the context, they should be understood as "one or more". "More" should be understood as two or more.
[0025] The slit coating head for easy positioning described in this application includes: ontology; The body includes a first body 101 and a second body 102 arranged facing each other; The main body is provided with a positioning pin receiving cavity, which penetrates the first main body 101 and is at least partially formed in the second main body 102. The locating pin cavity is provided with a locating pin 103; The positioning pin 103 includes a positioning rod 106; The dimensions of the positioning rod 106 are matched with the dimensions of the positioning pin receiving cavity; When the positioning pin 103 is installed in the body, the positioning rod 106 passes through the positioning pin receiving cavity through the first body 101, and the positioning rod 106 enters at least partially into the second body 102.
[0026] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.
[0027] Example 1 Figure 1 This is a schematic diagram of a slit coating head structure for easy positioning according to an embodiment of this application. Figure 2 This is a schematic diagram of a three-dimensional structure of a slit coating head for easy positioning according to an embodiment of this application, as shown below. Figure 1-2 As shown in the embodiment of this application, the slit coating head that is easy to position includes: a body.
[0028] In this embodiment of the application, the body includes a first body 101 and a second body 102.
[0029] In one exemplary embodiment, the first body 101 and the second body 102 are disposed facing each other, which can be understood as the first body 101 and the second body 102 being attached together.
[0030] In one exemplary embodiment, the main body is provided with a locating pin receiving cavity, and there is at least one locating pin receiving cavity; typically, there are two locating pin receiving cavities, which are respectively located in the side edge region of the main body, such as... Figure 2 As shown.
[0031] In one exemplary embodiment, the locating pin receiving cavity extends through the first body 101 and is at least partially formed within the second body 102; as Figure 2 As shown, the positioning pin cavity on the first body 101 is a through hole that penetrates the first body 101, and the positioning pin cavity on the second body 102 is a countersunk hole or a through hole.
[0032] In one exemplary embodiment, a positioning pin 103 is provided in the positioning pin receiving cavity, that is, the positioning pin 103 is disposed in the positioning pin receiving cavity.
[0033] In one exemplary embodiment, the positioning pin 103 includes a positioning rod 106, which is, for example, a metal rod.
[0034] In one exemplary embodiment, the size of the positioning rod 106 matches the size of the positioning pin receiving cavity. Matching can be understood as the positioning rod 106 being able to be placed into the positioning pin receiving cavity and being able to limit the movement of the first body 101 and the second body 102.
[0035] In one exemplary embodiment, when the positioning pin 103 is disposed in the body, the positioning rod 106 passes through the positioning pin receiving cavity through the first body 101, and the positioning rod 106 at least partially enters the second body 102.
[0036] In one exemplary embodiment, the locating pin receiving cavity penetrates the second body 102; this can be understood as the locating pin receiving cavity penetrating the body.
[0037] In one exemplary embodiment, the length of the positioning rod 106 is not less than the thickness of the body; typically, the length of the positioning rod 106 is chosen to be greater than the thickness of the body, such as... Figure 2 As shown, when assembling the main body, when the positioning rod 106 passes through the first main body 101 and the second main body 102 in sequence, the end of the positioning rod 106 away from the second main body 102 is exposed.
[0038] In one exemplary embodiment, the positioning pin 103 further includes a gripping portion 105.
[0039] In one exemplary embodiment, the grip portion 105 is disposed at one end of the positioning rod 106 facing away from the second body 102.
[0040] In one exemplary embodiment, the grip portion 105 is exposed on the side of the first body 101 facing away from the second body 102.
[0041] In one exemplary embodiment, the positioning rod 106 is vertically connected to the grip 105; the positioning rod 106 and the grip 105 may be made of the same metal material as needed.
[0042] In one exemplary embodiment, the body is further provided with a fixing threaded hole.
[0043] In one exemplary embodiment, a fixing bolt 104 is provided in the fixing threaded hole.
[0044] In one exemplary embodiment, the fixing bolt 104 is used to fix the first body 101 and the second body 102 together.
[0045] In one exemplary implementation, such as Figure 2 As shown, an inlet 109 and an outlet 108 are respectively provided at both ends of the joint between the first body 101 and the second body 102. The side of the first body 101 facing the second body 102 and the side of the second body 102 facing the first body 101 are both flat surfaces. In one exemplary embodiment, a flow channel is provided between the first body 101 and the second body 102. The flow channel connects the inlet 109 and the outlet 108, that is, the coating liquid enters the body through the inlet 109 and then flows out through the outlet 108.
[0046] In one exemplary embodiment, the threaded hole is perpendicular to the side of the first body 101 facing the second body 102.
[0047] In one exemplary embodiment, the flow channel is not connected to the locating pin receiving cavity.
[0048] In one exemplary embodiment, a gasket 107 is provided between the first body 101 and the second body 102.
[0049] In one exemplary embodiment, the gasket 107 may be a non-metallic gasket or a metallic gasket as needed; the purpose of the gasket 107 is to seal the flow channel while also reducing the impact damage caused by direct contact between the first body and the second body.
[0050] In an exemplary embodiment, the slit coating head of this application embodiment is easy to position. During assembly, the side of the second body 102 is first placed on the mounting platform, such as on a flat marble table; the side of the second body 102 is the side of the second body 102 that faces away from the first body 101.
[0051] In one exemplary embodiment, a shim 107 is placed, followed by the placement of the first body 101, ensuring that the locating pin cavities on the first body 101 and the second body 102 overlap. The locating rod 106 of the locating pin 103 is then inserted into the locating pin cavities. Since there are two non-overlapping locating pin cavities on the body, the positions of the first body 101 and the second body 102 are fixed by inserting the two locating pins 103 into the locating pin cavities respectively. Finally, the first body 101 and the second body 102 are fixed together by the fixing bolt 104.
[0052] In one exemplary embodiment, if necessary, after the first body 101 and the second body 102 are fixed together, the positioning pin 103 can be directly removed from the positioning pin receiving cavity.
[0053] It will be understood by those skilled in the art that the above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A slit coating head for easy positioning, characterized in that, include: ontology; The body includes a first body and a second body arranged facing each other; The main body is provided with a positioning pin receiving cavity, which penetrates the first main body and is at least partially formed in the second main body; The positioning pin is provided inside the cavity of the positioning pin; The positioning pin includes a positioning rod; The dimensions of the positioning rod are matched with the dimensions of the positioning pin receiving cavity; When the positioning pin is disposed in the body, the positioning rod passes through the positioning pin receiving cavity through the first body, and the positioning rod at least partially enters the second body.
2. The slit coating head for easy positioning according to claim 1, characterized in that, The locating pin cavity penetrates the second body.
3. The slit coating head for easy positioning according to claim 2, characterized in that, The length of the positioning rod is not less than the thickness of the body.
4. The slit coating head for easy positioning according to claim 1, characterized in that, The locating pin also includes: A gripping part is disposed at one end of the positioning rod facing away from the second body.
5. The slit coating head for easy positioning according to claim 4, characterized in that, The grip portion is exposed on the side of the first body facing away from the second body.
6. The slit coating head for easy positioning according to claim 4, characterized in that, The positioning rod is perpendicularly connected to the gripping part.
7. The slit coating head for easy positioning according to claim 1, characterized in that, The main body is also provided with a fixing threaded hole, and a fixing bolt is provided in the fixing threaded hole. The fixing bolt is used to fix the first main body and the second main body together.
8. The slit coating head for easy positioning according to claim 1, characterized in that, The main body is also provided with an inlet and an outlet, and a flow channel is provided between the inlet and the outlet; The flow channel is located inside the body.
9. The slit coating head for easy positioning according to claim 8, characterized in that, The flow channel is not connected to the locating pin cavity.
10. The slit coating head for easy positioning according to claim 1, characterized in that, A gasket is provided between the first body and the second body.