TW202239994A - Coating shielding jig - Google Patents

Abstract

Disclosed in the present invention is a coating shielding jig, comprising a first mold assembly and a second mold assembly. The first mold assembly and the second mold assembly comprise a mold opening state and a mold closing state; in the mold opening state, the first mold assembly and the second mold assembly are separated from each other, and in the mold closing state, the first mold assembly and the second mold assembly are combined with each other to form an accommodating cavity, the accommodating cavity being suitable for accommodating a workpiece to be coated; the first mold assembly comprises a local coating channel, the local coating channel being communicated with the accommodating cavity so as to perform, by means of the local coating channel, coating on a predetermined coating region of the workpiece to be coated.

Description

Coating masking fixture

The invention relates to the coating field, and further relates to a coating masking tool.

This application claims the priority of the Chinese patent application with the application number 202011575637.5 and the title of the invention " Coating Masking Fixture" submitted to the China Patent Office on December 28, 2020, the entire contents of which are incorporated herein by reference.

With the continuous popularization of intelligence, various electronic products have increasingly appeared in various fields of people's life and production. Electronic products involve various electronic components, so the packaging and waterproofing of electronic products have also become issues of concern to people.

Taking the most common electronic product mobile phone as an example, in the process of mobile phone manufacturing, when the mobile phone is assembled, it is necessary to set up a waterproof layer on some specific positions of the screen components of the mobile phone, especially some positions involving joints, screens and circuit boards, etc. , it is necessary to set up a waterproof structure.

Among the existing waterproof technologies for electronic equipment, MS glue (modified silane polyether glue) protection technology is mainly used. MS glue was mainly used in the construction field in the early days. With the development of electronic products, it was gradually applied to the waterproof sealing of electronic products, but there are many disadvantages.

First of all, MS glue is mainly used for the protection of large-area product surfaces, and is not suitable for the protection of small areas. The MS glue process occupies a large space, and it is inconvenient to apply glue in small areas, that is to say, it is more difficult to apply glue in small areas. Especially in some small edge areas, MS glue is more difficult to apply.

Secondly, the small area of MS glue has poor bonding and is easy to fall off. After falling off, it will completely lose its waterproof protection effect on electronic products.

Third, in order for the MS glue to be firmly combined with the product, the MS glue layer itself needs to be thicker, but this will affect the structure of the product itself to some extent, especially when it involves the internal assembly structure, this is thicker The MS adhesive layer will affect the assembly of other components.

Especially, when it comes to the waterproof setting of the electronic screen, its requirements are more stringent. For example, in some electronic screen components, the requirements for different positions of the electronic screen components are completely different. For example, the front, back and positions of electronic devices require that the front cannot be blocked and cannot affect the display. A tight waterproof structure needs to be set up in some parts of the inner side, and the infiltration of the protective structure must be strictly prevented in some parts of the area. For such requirements, the allowable processing deviation is very small, and the requirements for the jig manufacturing process are very high. However, the current MS glue manufacturing jigs are far from meeting the product requirements, and the process yield is low.

An advantage of the present invention is to provide a coating masking fixture, which cooperates with the plasma-enhanced chemical vapor deposition coating process to form a film layer on a predetermined local area of the workpiece to be coated by means of coating, and has a clear coating target position.

An advantage of the present invention is to provide a coating masking fixture, which cooperates with the plasma-enhanced chemical vapor deposition method coating process to form a film layer on a predetermined area of the workpiece to be coated by gradual deposition. The firmness of the combination of the layer and the product is better.

One advantage of the present invention is to provide a coating masking fixture, wherein said coating masking fixture adopts the mode of interlayer shielding, so that the non-coating area of the product to be coated is clamped and shielded inside, so that only a small part of the area to be coated and External communication, so that the coating gas can pass through the fixture and be deposited on the area to be coated.

An advantage of the present invention is to provide a coating masking fixture, wherein the coating masking fixture is matched by templates of different hardness, so that the softer template layer is attached to the workpiece to be coated, while the harder template layer is located on the outside, so that While maintaining a stable clamping force on the outside, the inside can fit the workpiece to be coated more closely, avoiding unnecessary movement of the moving parts to be coated and preventing damage from external forces.

An advantage of the present invention is to provide a coating masking jig, wherein the coating masking jig sets concave-convex structures on the templates clamped on both sides of the workpiece to be coated to prevent film seepage in the edge area.

One advantage of the present invention is to provide a film-coating masking fixture, wherein the softer template layer on the inner side of the film-coating masking fixture is set to match the shape of the workpiece to be coated, so as to protect the film to be coated workpiece while preventing unnecessary coating.

One advantage of the present invention is to provide a coating film shielding fixture, wherein the template positioned at the inner side of the coating film shielding fixture is provided with an exhaust hole, so that the inner template and the workpiece to be coated are attached to each other, and the templates of the inner and outer layers fit each other.

An advantage of the present invention is to provide a coating shielding fixture, wherein the mold plate located inside the coating shielding fixture is provided with a channel with a predetermined height, so that the coating gas can flow fully, facilitate the effective circulation of the coating gas, improve the coating efficiency and Uniformity.

An advantage of the present invention is to provide a coating shielding fixture, wherein the template of the coating shielding fixture is provided with an avoidance structure, which can effectively achieve shielding protection under the premise of ensuring that the electronic components are not pressed.

In order to achieve at least one advantage above, an aspect of the present invention provides a coating masking fixture, which includes:

a first template component; and

A second formwork assembly, the first formwork assembly and the second formwork assembly have a mold opening state and a mold closing state, in the mold opening state, the first formwork assembly and the second formwork assembly Separated from each other, in the mold clamping state, the first template assembly and the second template assembly are combined to form an accommodating cavity, the accommodating cavity is suitable for accommodating a workpiece to be coated, and the first template assembly has a A partial coating channel, the partial coating channel communicates with the accommodating cavity, so as to carry out coating to a predetermined coating area of the workpiece to be coated through the partial coating channel.

The coating masking fixture according to one embodiment, wherein the first template assembly includes a first inner template and a first outer template, and the second template assembly includes a second inner template and a second outer template , when the coating masking fixture is in the clamping state, the edge of the first inner template of the first template assembly is combined with the edge of the second inner template of the second template assembly, so The edge of the first outer formwork of the first formwork assembly is combined with the edge of the second outer formwork of the second formwork assembly.

According to an embodiment of the coating masking fixture, wherein the first outer template has a first groove, and the first inner template is accommodated in the first groove of the first outer template.

The coating masking fixture according to one embodiment, wherein the first template component has a first fitting structure, and the first fitting structure is arranged on the outer surface of the first inner template and the first fitting structure. between the inner surfaces of an outer formwork.

According to an embodiment of the coating masking fixture, wherein the first fitting structure is a concave-convex matching structure.

According to one embodiment of the coating masking fixture, the inner surface of the first inner template has a first profiling structure, and the first profiling structure is adapted to the upper surface of the workpiece to be coated.

According to an embodiment of the coating masking fixture, wherein the edge of the first profiling structure is in a convex arc shape.

According to an embodiment of the coating masking tool, the edges of the first profiling structure are approximately right-angled.

According to an embodiment of the coating shielding fixture, wherein the first inner template has a first inner hole and a first channel, the first inner hole communicates with the first channel, and the first inner hole Located above the first channel, the first channel communicates with the accommodating cavity.

According to an embodiment of the coating shielding fixture, wherein the first inner template has a plurality of the first inner holes, and the plurality of the first inner holes are laid out at predetermined positions, and the arrangement includes a lateral extension area and a side area.

According to one embodiment of the coating masking tool, the shape of the first channel matches the predetermined coating area of the workpiece to be coated.

According to an embodiment of the coating masking fixture, wherein the first outer template has a first outer hole, and the position of the first outer hole communicates with the first inner hole.

According to an embodiment of the coating shielding fixture, wherein the first outer template has a plurality of the first outer holes, the plurality of the first outer holes are laid out at predetermined positions, and the layout includes a lateral extension area and a side area.

According to an embodiment of the coating masking jig, the positions of the first outer hole and the first inner hole are corresponding.

The coating shielding fixture according to one embodiment, wherein the first outer hole, the first inner hole and the first channel communicate to form the partial coating channel.

According to an embodiment of the coating masking fixture, wherein the first inner template has a first vent hole, and the first vent hole passes through two sides of the first inner template.

According to an embodiment of the coating masking fixture, wherein the second outer template has a second groove, and the second inner template is accommodated in the second groove of the second outer template.

The coating masking fixture according to one embodiment, wherein the second template component has a second fitting structure, and the second fitting structure is arranged on the outer surface of the second inner template and the first fitting structure. between the inner surfaces of the two outer templates.

According to one embodiment of the coating masking fixture, the inner surface of the second inner template has a second profiling structure, and the second profiling structure is adapted to the lower surface of the workpiece to be coated.

According to an embodiment of the coating masking jig, the edge of the second profiling structure is in a concave arc shape.

According to an embodiment of the coating masking fixture, wherein the edge of the second profiling structure is approximately right-angled.

According to one embodiment of the coating masking fixture, the inner surface of the first inner template has an avoidance structure, and the position of the avoidance structure corresponds to the position of the electronic component of the workpiece to be coated.

According to an embodiment of the coating masking fixture, a third fitting structure is provided between the first inner template and the second inner template, and the third fitting structure is a concave-convex structure.

According to an embodiment of the coating masking fixture, wherein the second inner template has a second vent hole, and the second vent hole passes through two sides of the second inner template.

According to the coating masking jig according to one embodiment, the first inner template and the second inner template are made of silicone.

The coating masking fixture according to one embodiment, wherein the first outer template and the second outer template are epoxy boards.

According to the coating masking fixture described in one embodiment, wherein the second outer template has an auxiliary hole, the auxiliary hole communicates with both sides of the second outer template, so as to separate the second inner template from the Describe the second outer template.

The coating masking fixture according to one embodiment, wherein the coating masking fixture includes a plurality of fixing components, each of the first outer template and the second outer template has a plurality of fixing holes, and a plurality of the fixing components The components respectively pass through the fixing holes to fix the first outer formwork and the second outer formwork.

According to an embodiment of the coating masking fixture, when the first outer template and the second outer template are molded together, the first outer template and the second outer template are magnetically attracted together.

According to an embodiment of the coating masking tool, wherein the first outer template and the second outer template each have a positioning hole, the coating masking tool includes a positioning pin, and the positioning pin can pass through The positioning holes position the first outer template and the second outer template.

The coating masking fixture according to one embodiment, wherein the coating masking fixture cooperates with a plasma-enhanced chemical vapor deposition coating process to coat a film on a predetermined coating area of the workpiece to be coated.

1: Coating masking fixture

10: The first template component

100: mold opening state

101: accommodating cavity

102: Partial coating channel

11: First Inner Template

1101: the first inner hole

1102: the first channel

1103: the first exhaust hole

111: inner surface

12: First Outer Template

1201: the first outer hole

1202: the first fixing hole

1204: positioning hole

1206: Groove

121: inner surface

122: Outer surface

14:Magnetic parts

15: Locating pin

20: The second template component

200: Clamping state

21: Second inner template

2103: Second vent hole

211: inner surface

212: Outer surface

22: Second outer formwork

2202: Second fixing hole

2203: auxiliary hole

2204: positioning hole

2206: Groove

221: inner surface

222: Outer surface

31: The first chimeric structure

32: The second chimeric structure

33: The third chimeric structure

331: third bulge

332: The third groove

333: Protection bump

34: The fourth chimeric structure

40: Avoidance structure

401: The first inner avoidance cavity

402: Inner avoidance slot

403: Outer avoidance slot

51: The first profiling structure

52: The second profiling structure

9: The workpiece to be coated

901: Protected area

902: Coating area

91: screen

92: circuit board

921: Electronic components

922: circuit board layer

A-A: line

B-B: line

C-C: line

1A and 1B are schematic views from two angles of the mold clamping state of the coating and masking fixture according to the first embodiment of the present invention.

2A and 2B are schematic views from two angles of the mold opening state of the coating and masking fixture according to the first embodiment of the present invention.

Fig. 3 is a schematic diagram of cooperation between the coating masking fixture and the workpiece to be coated according to the first embodiment of the present invention.

4A and 4B are exploded schematic diagrams of the coating masking fixture according to the first embodiment of the present invention.

FIG. 5A is a schematic cross-sectional view along line A-A in FIG. 1A and a partially enlarged schematic view.

FIG. 5B is a schematic diagram of placing the workpiece to be coated in FIG. 5A .

FIG. 6A is a schematic cross-sectional view along line B-B in FIG. 1A and a partially enlarged schematic view.

FIG. 6B is a schematic diagram of placing the workpiece to be coated in FIG. 6A .

FIG. 7 is a schematic cross-sectional view along line C-C in FIG. 1A and a partially enlarged schematic view.

8A is a schematic cross-sectional view corresponding to line A-A of the coating and masking fixture according to the second embodiment of the present invention.

FIG. 8B is a schematic diagram of placing the workpiece to be coated in FIG. 8A .

9A is a schematic cross-sectional view corresponding to line B-B of the coating and masking fixture according to the second embodiment of the present invention.

FIG. 9B is a schematic diagram of placing the workpiece to be coated in FIG. 9A .

FIG. 10 is an exploded schematic diagram of a coating masking fixture according to a third embodiment of the present invention.

The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

Those skilled in the art should understand that in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplified description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation, so the above terms should not be construed as limiting the present invention.

It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of a component can be one, while in another embodiment, the number of the component The quantity can be multiple, and the term "a" cannot be understood as a limitation on the quantity.

References to "one embodiment," "an embodiment," "example embodiment," "various implementations," "some embodiments," etc. indicate that such embodiments describing the invention may include a particular feature, structure, or characteristic, But not every embodiment must include this feature, structure or characteristic. Furthermore, some embodiments may have some, all, or none of the features described for other embodiments.

1A and 1B are schematic views from two angles of the mold clamping state of the coating and masking fixture according to the first embodiment of the present invention. 2A and 2B are schematic views from two angles of the mold opening state of the coating and masking fixture according to the first embodiment of the present invention. Fig. 3 is a schematic diagram of cooperation between the coating masking fixture and the workpiece to be coated according to the first embodiment of the present invention. 4A and 4B are exploded schematic diagrams of the coating masking fixture according to the first embodiment of the present invention. FIG. 5A is a schematic cross-sectional view along line A-A in FIG. 1A and a partially enlarged schematic view.

FIG. 5B is a schematic diagram of placing the workpiece to be coated in FIG. 5A . FIG. 6A is a schematic cross-sectional view along line B-B in FIG. 1A and a partially enlarged schematic view. FIG. 6B is a schematic diagram of placing the workpiece to be coated in FIG. 6A . FIG. 7 is a schematic cross-sectional view along line C-C in FIG. 1A and a partially enlarged schematic view.

Referring to FIGS. 1A-7 , a coating masking fixture 1 according to a first embodiment of the present invention is illustrated. The present invention provides a coating masking tool 1 , the coating masking tool 1 cooperates with the plasma-enhanced chemical vapor deposition coating process to form a film layer on a predetermined local area of a workpiece 9 to be coated by means of coating. That is to say, when it is necessary to coat a predetermined local area of the workpiece 9 to be coated, the coating masking tool 1 with the workpiece 9 to be coated is placed in a reaction chamber as a whole, and in the reaction Deposition and coating are carried out in the chamber, so as to form a film layer with a predetermined function on a predetermined local area of the workpiece 9 to be coated by means of plasma enhanced chemical vapor deposition (PECVD).

Preferably, the film layer is a waterproof film. Optionally, the film layer can be a film layer with other functions, such as corrosion-resistant film, heat-insulating film, light-shielding film, etc. The present invention is not limited in this respect.

In one embodiment of the present invention, the workpiece 9 to be coated is a screen assembly, which includes a screen 91 and a circuit board 92 . The circuit board layer 922 is annularly disposed on the edge area of the screen 91 . The screen component 9 is, for example but not limited to, an electronic device, such as a screen component 9 of a smart phone. The circuit board 92 includes an electronic component 921 and a circuit board layer 922 , and the electronic component 921 is located in a local area of the circuit board 92 . Furthermore, the electronic component 921 is located near one end of the screen 91 , such as near the head end. The workpiece 9 to be coated includes a protection area 901 and a coating area 902, the protection area 901 is an area that needs to be strictly prevented from coating, and the coating area 902 is an area that needs to be coated. And in described to-be-coated workpiece 9, be provided with electronic group The head end of the piece 921 is the end that needs to be strictly protected, that is, the end that is prevented from being coated or seepage, that is, the area where the protection zone 901 is located, and the tail end is the end that needs to be coated, that is, the screen 91 and the screen 91. The position where the circuit boards 92 are stacked and combined, that is, the area where the coating area 902 is located. It is worth mentioning that, in the embodiment of the present invention, the description is made with the case that the partial area of the tail end of the workpiece 99 to be coated needs to be coated, while in other embodiments of the present invention, the workpiece 9 to be coated The predetermined local area may also be other positions, for example, local areas on both side edges, and the present invention is not limited in this respect. In other words, the predetermined local area of the workpiece 9 to be coated is selective.

The coating masking fixture 1 includes a first template assembly 10 and a second template assembly 20, the first template assembly 10 and the second template assembly 20 have a mold opening state 100 and a mold closing state 200, In the mold opening state 100, the first template assembly 10 and the second template assembly 20 are separated from each other, and the workpiece 9 to be coated is suitable for being placed on the first template assembly 10 and the second template between components 20, so as to clamp the workpiece 9 to be coated; The workpiece 9 to be coated, that is to say, when coating, the first template assembly 10 and the second template assembly 20 accommodate and shield are placed on the first template assembly 10 and the second template assembly 20 between the workpieces 9 to be coated, and make the predetermined local area of the workpiece 9 communicate with the outside.

It is worth mentioning that, according to the embodiment of the present invention, the coating masking tool 1 cooperates with the plasma-enhanced chemical vapor deposition coating process to form a film layer in a predetermined local area of the workpiece 9 to be coated by coating, so in When forming a film layer, the coating gas is gradually deposited at the predetermined coating position to form a film layer. It does not need to form a glue layer through the gluing component like the MS glue protection process, that is, it does not require the space occupied by an additional gluing component, so it is more suitable for use in Small areas with irregular shapes or corners form a protective film layer, which has a clear coating target position. On the other hand, the coating masking tool 1 cooperates with the plasma-enhanced chemical vapor deposition coating process to form a film layer on a predetermined area of the workpiece 9 to be coated by gradually depositing ionized gas, compared with the method of sizing , the firmness of the combination of the film layer and the product is better.

The first template component 10 has a partial coating channel 102, the partial coating The channel 102 communicates with the accommodating cavity 101, that is to say, during coating, the coating gas can pass through the partial coating channel 102 to reach a predetermined local area of the workpiece 9 to be coated in the accommodating space, and in the The predetermined local area of the workpiece 9 to be coated is deposited to form a film layer. It is worth mentioning that the coating shielding fixture 1 adopts a sandwich shielding method, so that the non-coating area of the product to be coated is clamped and shielded inside, so that only a small part of the area to be coated passes through the local coating channel 102 and External communication, so that the coating gas can pass through the fixture and be deposited on the area to be coated.

In an embodiment of the present invention, the first formwork assembly 10 is located above, also referred to as an upper formwork assembly, and the second formwork assembly 20 is located below, also referred to as a lower formwork assembly. In the process of combining the workpiece 9 to be coated with the coating masking fixture 1, the second template assembly 20 is placed horizontally, and the workpiece 9 to be coated is placed on the second template assembly 20, also That is to say, it is placed horizontally on the second formwork assembly 20 located below, and then the first formwork assembly 10 is moved down close to the first formwork assembly 10 to close. It is worth mentioning that, the manner in which the workpiece 9 to be coated is combined with the first template assembly 10 and the second template assembly 20 is not limited to the manner of placing them horizontally, but may also be in other manners, for example but not It is limited to vertical opening and closing, or the workpiece 9 to be coated is set at a predetermined position, and the first template assembly 10 and the second template assembly 20 are respectively moved from both sides to approach the coating to be coated by the mold opening state 100 The workpiece 9 reaches the mold clamping state 200 .

In one embodiment of the present invention, the first formwork assembly 10 and the second formwork assembly 20 are locked and fixed by screws after mold closing. In another embodiment of the present invention, the first formwork assembly 10 and the second formwork assembly 20 are fixed to each other by means of magnetic attraction. In another embodiment of the present invention, the first formwork assembly 10 and the second formwork assembly 20 are fixed to each other through a fitting structure. The present invention is This aspect is not limited, and the methods of screw fixing and magnetic attraction fixing will be specifically described later.

The first formwork assembly 10 includes a first inner formwork 11 and a first outer formwork 12 , and the first inner formwork 11 can be snugly fitted on the first outer formwork 12 . The first inner template 11 is located on the inner side, and the first outer template 12 is located on the outer side, that is to say, the first inner template 11 is a template close to the workpiece 9 to be coated, or in other words, it is close to the workpiece to be coated. The template layer of coating workpiece 9, so The first outer template 12 is a template layer that is relatively far away from the workpiece 9 to be coated. In other words, when the workpiece 9 to be coated is combined with the first template assembly 10, the first inner template 11 is spaced apart from Between the first outer template 12 and the workpiece 9 to be coated. For the convenience of description, in the embodiment of the present invention, the direction close to the workpiece 9 to be coated is defined as inner, and the direction away from the workpiece 9 to be coated is defined as outer.

The first outer template 12 has a first groove, and the first inner template 11 is accommodated in the first groove.

Further, the first inner template 11 is made of flexible materials, for example but not limited to, silicone rubber, ethylene/vinyl acetate copolymer (Ethylene Vinyl Acetate, EVA), natural rubber, preferably, the first inner template Template 11 is made of 50-degree silicone rubber.

The first outer template 12 is made of relatively hard materials, such as but not limited to, epoxy materials and aluminum alloy materials, preferably. The first outer template 12 is an FR-4 epoxy board. That is to say, the hardness of the first outer template 12 is greater than the hardness of the first inner template 11 .

It is worth mentioning that since the first inner template 11 is a component in direct contact with the workpiece 9 to be coated, the flexible material has a certain degree of elasticity, and the surface friction is relatively large, which can better protect The workpiece 9 to be coated can be stably positioned. On the other hand, when the first template component 10 and the second template component 20 are closed, the first inner template 11 layer can buffer the instantaneous pressure on the contact surface. The first outer formwork 12 is an external component that needs to be fixed and directly manipulated, and harder materials are more suitable for manipulation and fixation. Therefore, in the embodiment of the present invention, the material performance is combined with the function of the component through the soft-hard internal and external fit, so that the performance of the overall fixture is better.

Similarly, the second formwork assembly 20 includes a second inner formwork 21 and a second outer formwork 22 , and the second inner formwork 21 can be snugly fitted on the second outer formwork 22 . The second inner template 21 is located on the inner side, and the second outer template 22 is located on the outer side, that is to say, the second inner template 21 is a template close to the workpiece 9 to be coated, or in other words, it is close to the workpiece to be coated. The template layer of the coating workpiece 9, the second outer template 22 is relatively far away from the template layer of the workpiece 9 to be coated, in other words, when the workpiece 9 to be coated is combined with the second template assembly 20, the second internal template 21 is spaced between the second outer template 22 and the workpiece 9 to be coated.

Referring to FIG. 1A , 1B and FIG. 3 , in the mold clamping state 200 , the workpiece 9 to be coated can be placed between the first inner template 11 and the second inner template 21 . When the coating shielding fixture 1 is clamped, the edges of the first outer template 12 and the second outer template 22 are connected, and the edges of the first inner template 11 and the second inner template 21 are connected. catch.

Furthermore, the workpiece 9 to be coated is at least partially wrapped and shielded in the first inner template 11 and the second inner template 21 . Preferably, the workpiece 9 to be coated is shielded and wrapped in the first inner template 11 and the second inner template 21 , and a predetermined local area of the workpiece 9 to be coated is communicated with the outside.

Further, the second inner template 21 is made of flexible material, for example but not limited to, silicone rubber. Preferably, the second inner template 21 is made of 30-degree silicone rubber. The hardness of the first inner template 22 is greater than the hardness of the second inner template 21, preferably, the hardness range of the first inner template is 60±10 degrees, and the hardness range of the second inner template is 40 degrees. ±10 degrees.

The second outer template 22 is made of relatively hard materials, such as but not limited to, epoxy materials and aluminum alloy materials, preferably. The second outer template 22 is an FR-4 epoxy board. That is to say, the hardness of the second outer template 22 is greater than the hardness of the second inner template 21 . It is worth mentioning that, according to an embodiment of the present invention, the hardness of the outer template is greater than that of the inner template. The inner template located on the inner side is softer and can be more tightly attached to the front of the screen, and the outer template located on the outer side is harder and can Provides a large supporting force, which can press the screen to make it fit the inner template better and avoid frontal seepage.

It is worth mentioning that since the second inner template 21 is a component in direct contact with the workpiece 9 to be coated, the flexible material has a certain degree of elasticity, and the surface friction is relatively large, which can better protect The workpiece 9 to be coated can be stably positioned. On the other hand, when the first template assembly 10 and the second template assembly 20 are closed, the first inner template 11 layer and the second inner template 21 layer can buffer the instantaneous pressure on the contact surface. The first outer formwork 12 and the second outer formwork 22 are external components that need to be fixed and directly manipulated, and harder materials are more suitable for manipulation and fixation. Therefore, in the embodiment of the present invention, the material performance is combined with the function of the component through the soft and hard internal and external fit, so that The performance of the overall fixture is better. That is to say, in the embodiment of the present invention, the inner template directly contacted with the workpiece 9 to be coated is relatively soft as a whole, which is convenient for protecting and positioning the workpiece 9 to be coated, and the entire outer template separated by Harder, easy to fix each other and be manipulated.

The coating masking fixture 1 cooperates with templates of different hardness, so that the softer template layer is attached to the workpiece 9 to be coated, and the harder template layer is located outside, so that while maintaining a stable clamping force on the outside, the inside It can fit the workpiece 9 to be coated more closely, avoid unnecessary movement of the workpiece 9 to be coated and prevent damage from external forces.

Further, the first inner formwork 11 and the first outer formwork 12 are substantially plate-shaped structures, that is to say, the main bodies of the first inner formwork 11 and the first outer formwork 12 are planarly extended.

5A-6B, the first inner formwork 11 and the first outer formwork 12 each have an inner surface and an outer surface, and the outer surface 122 of the first outer formwork 12 extends substantially planarly, that is to say , the exterior of the first outer template 12 is flat as a whole. A first fitting structure 31 is provided between the inner surface 121 of the first outer template 12 and the outer surface 112 of the first inner template 11, so that the first inner template 11 and the first outer template 12 close to each other and combine. For example but not limited to, the first fitting structure 31 is a concave-convex structure, such as a protrusion is provided on the inner surface 121 of the first outer template 12, and a protrusion is provided on the outer surface 112 of the first inner template 11. Grooves are provided, or the inner surface 121 of the first outer template 12 is provided with grooves, and the outer surface 112 of the first inner template 11 is provided with protrusions. It is worth mentioning that since the first inner template 11 is made of softer material and the first outer template 12 is made of harder material, the inner surface 121 of the first outer template 12 is provided with protrusions, The stability and convenience of installation of the first interlocking structure 31 formed by setting grooves on the outer surface of the first inner template is higher than that of the opposite first interlocking structure 31 .

The inner surface 111 of the first inner template 11 has a first profiling structure 51 that cooperates with the surface of the workpiece 9 to be coated, so as to stably position the workpiece 9 to be coated. The workpiece 9 to be coated has an upper surface and a lower surface, and the first profiling structure 51 is adapted to the upper surface of the workpiece 9 to be coated. Further, in this embodiment of the present invention, the edge of the upper surface of the workpiece 9 to be coated is inwardly arc-shaped, and correspondingly, the inner surface 111 of the first inner template 11 The edges of the profiled structure 51 have an outwardly convex arc shape, that is to say, the first profiling structure 51 has an inward arc-shaped edge. In other embodiments of the present invention, the inner surface 111 of the first inner template 11 may also have other profiling structures, for example, a substantially right-angled structure.

Correspondingly, the second inner formwork 21 and the second outer formwork 22 are substantially plate-shaped structures, that is to say, the main bodies of the second inner formwork 21 and the second outer formwork 22 are planar extensions .

The second inner formwork 21 and the second outer formwork 22 each have an inner surface and an outer surface, and the outer surface 222 of the second outer formwork 22 extends substantially planarly, that is, the first outer formwork The outside of the template 12 and the second outer template 22 are flat overall, that is, the entire outer surface of the coating shielding fixture 1 is flat, which is convenient for operation and for applying a balanced clamping force. A second fitting structure 32 is provided between the inner surface 221 of the second outer template 22 and the outer surface 212 of the second inner template 21, so that the second inner template 21 and the second outer template 22 are attached to each other and combined. For example but not limited to, the second fitting structure 32 is a concave-convex structure, such as a protrusion is provided on the inner surface 221 of the second outer template 22, and a protrusion is provided on the outer surface 212 of the second inner template 21. Grooves are provided, or the inner surface 221 of the second outer template 22 is provided with grooves, and the outer surface 212 of the second inner template 21 is provided with protrusions. It is worth mentioning that since the second inner template 21 is made of softer material and the second outer template 22 is made of harder material, the inner surface 221 of the second outer template 22 is provided with protrusions, The second interlocking structure 32 formed by grooves on the outer surface of the second inner formwork is more stable and convenient to install than the opposite second interlocking structure 32 .

The positions of the first fitting structure 31 and the second fitting structure 32 of the first formwork assembly 10 and the second formwork assembly 20 correspond to each other.

In this embodiment of the present invention, the workpiece 9 to be coated is approximately a right-angled side, and the inner surface 111 of the first inner template 11 has a first profiling structure 51 that cooperates with the surface of the workpiece 9 to be coated. . The edges of the first profiling structure 51 are approximately right-angled.

Correspondingly, the inner surface 211 of the second inner template 21 has a second profiling structure 52 cooperating with the surface of the workpiece 9 to be coated, so as to stably position the workpiece 9 to be coated. The workpiece 9 to be coated has an upper surface and a lower surface, and the inner surface of the second inner template 21 The second profiling structure 52 on the surface 211 is adapted to the lower surface of the workpiece 9 to be coated. The edges of the second profiling structure 52 are approximately right-angled.

Further, referring to FIG. 3 , the inner surface 111 of the first inner template 11 has an avoidance structure 40, and the avoidance structure 40 is used to avoid the electronic component 921 of the workpiece 9 to be coated, so that when the first When the first template component 10 and the second template component 20 are clamped together, the electronic component 921 of the workpiece 9 to be coated will not be pressed or the pressure will be relieved. That is to say, the position of the avoidance structure 40 corresponds to the position of the electronic component 921 of the workpiece 9 to be coated. In one embodiment of the present invention, the escape structure 40 is a horizontal L-shaped groove. The avoidance structure 40 of the coating shielding jig 1 effectively achieves shielding protection under the premise of ensuring that the electronic component 921 is not pressed.

The avoidance structure 40 includes a first inner avoidance cavity 401, an inner avoidance groove 402 and an outer avoidance groove 403. The first inner avoidance cavity 401 communicates with the inner avoidance groove 402 and is arranged in the first Inner template11. The outer escape groove 403 is disposed on the first outer template 12 . Thus, the different electronic components 921 of the circuit board 92 are entirely avoided through the first inner escape cavity 401 , the inner escape groove 402 and the outer escape groove 403 . It is worth mentioning that, in an implementation of the present invention, the electronic component 921 includes a connecting cable, which extends outside the coating shielding fixture 1. In another embodiment of the present invention, the The screen assembly 9 may not have connecting wires, that is, the inner escape groove 402 and the outer escape groove 403 may not be provided. The avoidance structure 40 can be adjusted according to the structural position of the electronic component 921 of the screen component 9 .

Further, referring to FIGS. 5A-6B , a third fitting structure 33 is provided between the first inner template and the second inner template 21 , and the third fitting structure 33 is used for the first inner template 11 Combined with the second internal template 21. Furthermore, the third fitting structure 33 is located outside the workpiece 9 to be coated, that is to say, the third fitting structure 33 at least partially surrounds the outer edge of the workpiece 9 to be coated, so that At least part of the edge of the workpiece 9 to be coated is completely isolated from the outside, that is, to prevent penetration of coating gas. Preferably, the third interlocking structure 33 is integrally arranged around the edges of the first inner template 11 and the second inner template 21, so that the entire edge of the workpiece 9 to be coated is isolated to prevent coating gas from infiltrate.

In one embodiment of the present invention, the third fitting structure 33 is a groove and protrusion matching structure, for example but not limited to, a protrusion is provided on the inner surface 111 of the first inner template 11, and The inner surface 211 of the second inner template 21 is provided with grooves, or the opposite arrangement. In other embodiments of the present invention, the third interlocking structure 33 may also be other cooperating structures, such as tooth-shaped structures. Furthermore, in one embodiment of the present invention, the third fitting structure 33 includes multiple sets of grooves and protrusions, that is to say, if the gas is to flow from the first template assembly 10 and the second The joint position of the formwork assembly 20 enters the inside, and it is necessary to pass through a plurality of grooves and projections in layers. Therefore, in this way, on the one hand, the connection between the first formwork assembly 10 and the second formwork assembly 20 is more efficient. Tight and firm, on the other hand, prolong the path that the gas needs to pass, thereby minimizing the infiltration of gas.

The third fitting joint 33 includes a third protrusion 331 and a third groove 332, and the third protrusion 331 and the third groove 332 are respectively arranged on the first inner template 11 and the third groove 332. The second inner formwork 21 is such that edges of the first inner formwork 11 and the second inner formwork 21 are combined with each other.

Further, referring to Figures 5A-6B, a fourth fitting structure 34 is provided between the first outer template 12 and the second outer template 22, and the fourth fitting structure 34 is used for the first outer template 12 and the mutual combination between the second outer template 22. Furthermore, the fourth fitting structure 34 is located outside the third fitting structure 33 . That is to say, if the gas wants to enter the interior, it must first pass through the fourth interlocking structure 34 and then pass through the third interlocking structure 33 , thereby preventing the infiltration of coating gas layer by layer. In one embodiment of the present invention, the fourth fitting structure 34 is a concave-convex stepped fitting structure. For example but not limited to, a concave step is provided on the edge of the inner surface of the first outer template 12 , and a convex step is arranged on the edge of the inner surface of the second outer template 22 .

It is worth mentioning that, in this embodiment of the present invention, although the first fitting structure 31, the second fitting structure 32 and the third fitting structure 33 are generally concave-convex fitting structures, their settings The location and function are not the same.

Further, referring to FIG. 5A, FIG. 5B, and FIG. 7, the first inner template 11 has a first inner hole 1101 and a first channel 1102, and the first inner hole 1101 communicates with the first channel 1102, the first outer mold set has a first outer hole 1201, and the first outer hole 1201 of the first outer template communicates with the first inner hole 1101 of the first inner template 11 and the The first channel 1102 forms the partial coating channel 102 . Preferably, the first inner hole 1101 of the first inner template 11 corresponds to the first outer hole 1201 of the first outer template 12 . Optionally, the first inner hole 1101 of the first inner formwork 11 and the first outer hole 1201 of the first outer formwork 12 are arranged in an offset manner and are partially connected.

The first inner hole 1101 is located near one end of the first inner template 11 , and the first inner hole 1101 is located above the first channel 1102 . The first channel 1102 communicates with the first inner hole 1101 in the vertical direction, and extends along the horizontal direction of the first inner template 11 . The first channel 1102 communicates with the receiving cavity 101 . The transverse dimension of the first channel 1102 is greater than the transverse dimension of the first inner hole 1101 .

It is worth mentioning that the first channel 1102 is above the predetermined local area of the workpiece 9 to be coated, and the shape of the first channel 1102 matches the predetermined coating local position of the workpiece 9 to be coated, and also That is to say, after the coating gas enters, it can flow sufficiently over the predetermined local area of the workpiece 9 to be coated, so as to improve the coating efficiency and the uniformity of the coating.

Preferably, the height of the first channel 1102 is 1.5mm-2.5mm. Preferably, the first inner hole 1101 and the first outer hole 1201 are oval holes. The inner template of the coating shielding fixture 1 is provided with channels of a predetermined height, so that the coating gas can fully flow, facilitate the effective circulation of the coating gas, and improve the coating efficiency and uniformity.

Further, the first inner template 11 has a plurality of first inner holes 1101 arranged in predetermined positions and connected to the first channels 1102 respectively. The first outer template 12 has a plurality of first outer holes 1201, and the plurality of first outer holes 1201 are arranged in predetermined positions. The shape of the first communication channel matches the layout of the first inner hole 1101 and the first outer hole 1201 , so as to form a coating space with a predetermined shape.

The layout and shape of the first outer hole 1201 , the first inner hole 1101 and the first channel 1102 are set according to the shape and position of the local coating area of the workpiece 9 to be coated.

In this embodiment of the present invention, the layout shape of a plurality of the first outer holes 1201 It includes an outer lateral extension region and two outer regions, respectively corresponding to the lateral region and two side regions of the end of the workpiece 9 to be coated. Correspondingly, the layout shape of the plurality of first inner holes 1101 includes an inner lateral extension area and two inner areas, respectively corresponding to the laterally extending area and the two side areas of the end of the workpiece 9 to be coated, the laterally extending area and the two side areas communicate with the first channel 1102 respectively, that is to say, The first channel 1102 forms a communication space of a predetermined shape with a lateral extension area and two side areas, and communicates with the accommodating cavity 101, thereby forming a door-shaped local coating area, that is, the workpiece 9 to be coated The three peripheral edges of the tail form a membranous layer. In other embodiments of the present invention, the layout and shape of the first outer hole 1201 , the first inner hole 1101 and the first channel 1102 may also be other positions and shapes.

It is worth mentioning that, according to the technical solution of this embodiment of the present invention, when the front and back main parts of the workpiece 9 to be coated are not coated, only 0.8 - A nano film layer is formed in the 1.1 mm wide edge area, which not only meets the requirement of waterproofing, but also does not affect the aesthetic appearance of the workpiece 9 to be coated and the cooperative installation with other components.

Further, the first inner template 11 has a first vent hole 1103, and the first vent hole 1103 runs through both sides of the first inner template 11, so that when the first inner template 11 and the When the first outer formwork 12 approaches, the gas between the first inner formwork 11 and the first outer formwork 12 is exhausted, so that the first inner formwork 11 and the first outer formwork 12 can be closely attached. Preferably, the first inner formwork 11 has a plurality of first exhaust holes 1103 arranged in predetermined positions.

Correspondingly, the second inner template 21 has a second vent hole 2103, and the second vent hole 2103 runs through both sides of the second inner template 21, so that when the second inner template 21 and the second inner template 21 When the second outer formwork 22 approaches, the gas between the second inner formwork 21 and the second outer formwork 22 is discharged, so that the second inner formwork 21 and the second outer formwork 22 can be closely attached . Preferably, the second inner formwork 21 has a plurality of second exhaust holes 2103 arranged in predetermined positions.

It is worth mentioning that the first inner formwork 11 and the second inner formwork 21 are made of silica gel, while the first outer formwork 12 and the second outer formwork 22 are epoxy boards. An inner template 11 and the second inner template 21 can better fit the surface of the workpiece 9 to be coated, And make the first inner formwork 11 and the first outer formwork 12 close to each other without punching holes in the harder first outer formwork 12 and the second outer formwork 22 . When it is necessary to clean or separate the first inner formwork 11 and the first outer formwork 12, the first inner formwork 11 and the first outer formwork 12 can be washed away by a high-pressure water gun, or the first inner formwork 11 and the first outer formwork 12 can be washed away manually. The first inner template 11 is separated from the first outer template 12.

In one embodiment of the present invention, the second outer template 22 has an auxiliary hole 2203, and the auxiliary hole 2203 communicates with both sides of the second outer template 22, that is, the auxiliary hole 2203 is a hole. The auxiliary hole 2203 can also be used to separate the second inner template 21 and the second outer template 22 from each other. For example but not limited to, when the second inner formwork 21 needs to be separated from the second outer formwork 22, the auxiliary hole 2203 can be filled with water, so that the second inner formwork 21 can be quickly separated from the second outer formwork 22. The second outer template 22 can also manually separate the second inner template 21 from the second outer template 22 through the auxiliary hole 2203 .

In other embodiments of the present invention, the auxiliary hole 2203 may also be provided on the first inner template 11 , the first outer template 12 or the second inner template 21 .

Further, the first outer template 12 has a plurality of first fixing holes 1202, correspondingly, the second outer template 22 has a plurality of second fixing holes 2202, and the first fixing holes 1202 and the second fixing holes The positions of the holes 2202 are corresponding so as to be fixed by a fixing component, such as but not limited to screws, rivets, and fixing plugs. That is to say, a plurality of the fixing components respectively pass through the plurality of the first fixing holes 1202 and the second fixing holes 2202 to fix the first outer formwork 12 and the second outer formwork 22 to each other.

It is worth mentioning that the edge of the first outer template 12 protrudes from the first inner template 11, the first inner template 11 is accommodated with the first outer template 12, and the second outer template 22 protrudes from the edge of the second inner formwork 21, and the second inner formwork 21 is accommodated in the second outer formwork 22, so when the first formwork assembly 10 and the second formwork assembly 20 are combined During molding, the edges of the first inner formwork 11 and the second inner formwork 21 are combined with each other, and the edges of the first outer formwork 12 and the second outer formwork 22 are combined with each other, so that the to-be The edge of the coating workpiece 9 is isolated from the outside, thereby effectively preventing film seepage.

8A, 8B, 9A, 9B are schematic cross-sectional views of a coating fixture according to a second embodiment of the present invention.

In this embodiment of the present invention, the edge of the workpiece 9 to be coated is arc-shaped, and the inner surface 111 of the first inner template 11 has a first profiling that cooperates with the surface of the workpiece 9 to be coated. Structure 51, so as to stably position the workpiece 9 to be coated. The workpiece 9 to be coated has an upper surface and a lower surface, and the first profiling structure 51 is adapted to the upper surface of the workpiece 9 to be coated. Further, in this embodiment of the present invention, the edge of the upper surface of the workpiece 9 to be coated is inwardly arc-shaped, and correspondingly, the edge of the inner surface 111 of the first inner template 11 is outwardly convexly arc-shaped In other words, the first profiling structure 51 has an inwardly curved edge. In other embodiments of the present invention, the inner surface 111 of the first inner template 11 may also have other profiling structures, for example, a substantially right-angled structure.

It is worth mentioning that when the edge of the workpiece 9 to be coated is arc-shaped, the positions of the first fitting structure 31 and the second fitting structure 32 are located inside the arc-shaped edge, that is to say , The positions of the first fitting structure 31 and the second fitting structure 32 avoid the arc position of the workpiece 9 to be coated, so as to prevent damage to the workpiece 9 to be coated when the mold is closed.

Further, the third fitting structure includes a protection protrusion 333, the protection protrusion 333 is arranged on the first inner template 11, and extends to the protection area 901 of the workpiece 9 to be coated, so that In this way, the protection area 901 of the workpiece 9 to be coated is positioned and blocked by the protection protrusion 333 so as not to be coated.

The inner surface 211 of the second inner template 21 has a second profiling structure 52 that cooperates with the surface of the workpiece 9 to be coated, so as to stably position the workpiece 9 to be coated. The workpiece 9 to be coated has an upper surface and a lower surface, and the second profiling structure 52 on the inner surface 211 of the second inner template 21 is adapted to the lower surface of the workpiece 9 to be coated. Further, in this embodiment of the present invention, the edge of the lower surface of the workpiece 9 to be coated is in an outward arc shape, and correspondingly, the edge of the inner surface 211 of the second inner template 21 is in a concave arc shape . That is to say, the second profiling structure 52 has an inwardly curved edge. In other embodiments of the present invention, the inner surface 211 of the second inner template 21 may also have other profiling structures, for example, a substantially right-angled structure.

In an embodiment of the present invention, the second inner template can wrap the lower surface of the workpiece 9 to be coated with barbs, so as to facilitate the placement of the workpiece 9 to be coated.

FIG. 10 is an exploded schematic diagram of a coating fixture according to a third embodiment of the present invention.

Referring to FIG. 10 , in this embodiment of the present invention, the first formwork component 10 and the second formwork component 20 are combined with each other through magnetic attraction.

Further, the first outer formwork 12 and the second outer formwork 22 are respectively provided with a plurality of magnetic attractors 14 for attracting the first outer formwork 12 and the second outer formwork 22 . Preferably, the plurality of magnetic attractors 14 of the first outer formwork 12 and the second outer formwork 22 are respectively arranged on edge regions of the first outer formwork 12 and the second outer formwork 22 .

In one embodiment of the present invention, the first outer template 12 and the second outer template 22 each have at least one positioning hole 1204, 2204, and the coating masking fixture includes at least one positioning pin 15, the positioning The pin 15 can pass through the positioning holes 1204 , 2204 to position the first outer template 12 and the second outer template 22 . Preferably, a plurality of positioning holes 1204 , 2204 are respectively arranged at triangular positions of the first outer formwork 12 and the second outer formwork 22 .

In one embodiment, the magnetic attractors 14 of the first outer formwork 12 and the second outer formwork 22 are embedded in the first outer formwork 12 and the second outer formwork 22, that is, The surfaces of the first outer formwork 12 and the second outer formwork 22 are flat, without protrusions or additional screw components.

When manufacturing the first outer template 12 or the second outer template 22, a blind hole can be formed at a predetermined position of the first outer template 12 or the second outer template 22, and then the magnetic assembly is embedded in the Blind hole. Alternatively, the magnetic assembly 14 is integrally formed on the first outer template 12 or the second outer template 22 . For example but not limited thereto, the first fixing hole 1202 and the second fixing hole 2202 are respectively set as blind holes, and the magnetic attractor 14 is inserted at the corresponding position.

Those skilled in the art should understand that the embodiments of the present invention shown in the above description and drawings are only examples and do not limit the present invention. The objects of the present invention have been fully and effectively accomplished. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may have any deformation or modification without departing from the principles.

1: Coating masking fixture

10: The first template component

100: mold opening state

102: Partial coating channel

11: First Inner Template

1101: the first inner hole

1102: the first channel

1103: the first exhaust hole

111: inner surface

12: First Outer Template

1201: the first outer hole

1202: the first fixing hole

1206: Groove

121: inner surface

122: Outer surface

20: The second template component

21: Second inner template

2103: Second vent hole

211: inner surface

22: Second outer formwork

2202: Second fixing hole

2206: Groove

221: inner surface

222: Outer surface

31: The first chimeric structure

32: The second chimeric structure

40: Avoidance structure

401: The first inner avoidance cavity

402: Inner avoidance slot

403: Outer avoidance slot

51: The first profiling structure

52: The second profiling structure

9: The workpiece to be coated

901: Protected area

902: Coating area

91: screen

92: circuit board

921: Electronic components

922: circuit board layer

Claims (32)

The coating masking fixture is characterized in that it includes: a first template component; and A second formwork assembly, the first formwork assembly and the second formwork assembly have a mold opening state and a mold closing state, in the mold opening state, the first formwork assembly and the second formwork assembly Separated from each other, in the mold clamping state, the first template assembly and the second template assembly are combined to form an accommodating cavity, the accommodating cavity is suitable for accommodating a workpiece to be coated, and the first template assembly has a A partial coating channel, the partial coating channel communicates with the accommodating cavity, so as to carry out coating to a predetermined coating area of the workpiece to be coated through the partial coating channel. The coating masking tool according to claim 1, wherein the first template assembly includes a first inner template and a first outer template, and the second template assembly includes a second inner template and a second outer template , when the coating masking fixture is in the clamping state, the edge of the first inner template of the first template assembly is combined with the edge of the second inner template of the second template assembly, so The edge of the first outer formwork of the first formwork assembly is combined with the edge of the second outer formwork of the second formwork assembly. The coating masking tool according to claim 2, wherein the first outer template has a first groove, and the first inner template is accommodated in the first groove of the first outer template. The coating masking fixture according to claim 2, wherein the first template component has a first fitting structure, and the first fitting structure is arranged on the outer surface of the first inner template and the second between the inner surfaces of an outer formwork. The coating masking fixture as claimed in claim 4, wherein the first fitting structure is a concave-convex matching structure. The coating masking fixture according to claim 2, wherein the inner surface of the first inner template has a first profiling structure, and the first profiling structure is adapted to the upper surface of the workpiece to be coated. The coating masking tool according to claim 6, wherein the edge of the first profiling structure is in a convex arc shape. The coating masking fixture as claimed in claim 6, wherein the edges of the first profiling structure are substantially at right angles. The coating masking fixture as described in claim 2, wherein the first inner template has a first inner hole and a first channel, the first inner hole communicates with the first channel, and the first inner hole Located above the first channel, the first channel communicates with the accommodating cavity. The coating shielding fixture as claimed in claim 9, wherein the first inner template has a plurality of the first inner holes, and the plurality of the first inner holes are laid out at predetermined positions, and the layout includes a lateral extension area and a side area. The coating masking fixture as claimed in claim 9, wherein the shape of the first channel matches the predetermined coating area of the workpiece to be coated. The coating masking fixture as claimed in claim 9, wherein the first outer template has a first outer hole, and the position of the first outer hole communicates with the first inner hole. The coating masking fixture according to claim 11, wherein the first outer template has a plurality of the first outer holes, and the plurality of the first outer holes are laid out at predetermined positions, and the layout includes a lateral extension area and a side area. The coating masking fixture according to claim 12, wherein the positions of the first outer hole and the first inner hole correspond. The coating shielding fixture according to claim 13, wherein the first outer hole, the first inner hole and the first channel communicate to form the partial coating channel. The coating masking fixture according to claim 10, wherein the first inner template has a first vent hole, and the first vent hole passes through both sides of the first inner template. The coating masking fixture according to any one of claims 2-16, wherein the second outer template has a second groove, and the second inner template is accommodated in the second outer template. groove. The coating masking fixture according to any one of claims 2-16, wherein the second template component has a second fitting structure, and the second fitting structure is arranged on the outer surface of the second inner template and the inner surface of the second outer template. The coating masking fixture according to any one of claim items 2-16, wherein the inner surface of the second inner template has a second profiling structure, and the second profiling structure and the lower surface of the workpiece to be coated adaptation. The coating masking fixture as claimed in item 19, wherein the second profiling structure The edges are concavely curved. The coating masking fixture as claimed in claim 19, wherein the edges of the second profiling structure are approximately right-angled. The coating masking fixture according to any one of Claims 2-16, wherein the inner surface of the first inner template has an avoidance structure, and the position of the avoidance structure corresponds to the position of the electronic component of the workpiece to be coated. The coating masking fixture according to any one of claims 2-16, wherein a third fitting structure is provided between the first inner template and the second inner template, and the third fitting structure is a concave-convex structure structure. The coating masking fixture according to any one of claims 2-16, wherein the second inner template has a second vent hole, and the second vent hole passes through both sides of the second inner template. The coating masking fixture according to any one of claims 2-16, wherein the first inner template and the second inner template are made of silicone rubber. The coating masking fixture according to any one of claims 2-16, wherein the first outer template and the second outer template are epoxy boards. The coating masking fixture according to any one of claim items 2-16, wherein the second outer template has an auxiliary hole, and the auxiliary hole communicates with both sides of the second outer template so as to separate the second outer template. an inner formwork and the second outer formwork. The coating masking fixture as described in any one of claim items 2-16, wherein the coating masking fixture includes a plurality of fixing components, and each of the first outer template and the second outer template has a plurality of fixing holes. The two fixing components pass through the fixing holes to respectively fix the first outer formwork and the second outer formwork. The coating masking fixture according to any one of claim items 2-16, wherein when the first outer template and the second outer template are closed, the first outer template and the second outer template are magnetically attracted combine. The coating masking tool according to claim 29, wherein the first outer template and the second outer template each have a positioning hole, and the coating masking tool includes a positioning pin, and the positioning pin can pass through The positioning holes position the first outer formwork and the second outer formwork. The coating masking fixture as described in any one of claim items 2-16, wherein the coating masking The masking tool cooperates with the plasma-enhanced chemical vapor deposition coating process to coat the predetermined coating area of the workpiece to be coated. The coating masking fixture according to any one of claims 2-16, wherein the second inner template is suitable for wrapping the workpiece to be coated with barbs.

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