Mechanism for improving three-proofing paint pollution

Abstract

The utility model discloses a mechanism for improving three-proofing paint pollution, which comprises a protective plate and a spraying area for positioning a main board, a locking component is arranged in a non-spraying area of the protective plate, and an expansion end of the locking component is arranged on the side surface of the spraying area and is matched with the side surface of the main board positioned in the spraying area. The extrusion pieces of the locking assembly are located at the two ends of the side face of the spraying area, the expansion ends of the extrusion pieces are only in contact with the side face of the main board, the movement path of the paint spraying head is prevented from being shielded, it is ensured that the paint spraying head can completely cover all the areas of the main board, and therefore spraying uniformity and integrity are improved.

Description

Technical Field

[0001] This utility model relates to the field of motherboard processing technology, and in particular to a mechanism for improving the contamination of conformal coatings. Background Technology

[0002] In the electronics manufacturing industry, painting is a key surface treatment process in the production of motherboards (such as computer motherboards), designed to provide a protective layer and aesthetic effect. In traditional painting operations, because varnish can easily remain on the workbench, jigs are often used to fix the motherboard and shield non-painted areas of the workbench to prevent contamination and ensure painting accuracy.

[0003] However, existing fixture designs have certain limitations: the mechanism used to fix the motherboard often interferes with the movement path of the spray nozzle, causing the spray nozzle to fail to completely cover certain areas of the motherboard, thus affecting the uniformity and integrity of the coating. This problem is particularly prominent in the manufacturing of precision electronic components, as any localized coating defect can adversely affect the product's performance or appearance. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To address the aforementioned problems, this utility model provides the following technical solution: A mechanism for improving conformal coating contamination. The mechanism includes a protective plate and a spraying area thereon for positioning the main board. The non-spraying area of ​​the protective plate is provided with a locking component, wherein the expansion end of the locking component is located on the side of the spraying area and cooperates with the side of the main board positioned by the spraying area.

[0006] Preferably, the locking assembly includes an extrusion member, a conveying structure, and a control end, wherein the control end is disposed on the protective plate and is sealed and connected to the extrusion member through the conveying structure.

[0007] Preferably, the number of extrusion parts is two, located at both ends of the side of the spraying area.

[0008] Preferably, the edge of the protective plate is provided with a first groove and a second groove, the extrusion member and the conveying structure are disposed in the first groove, the control end is disposed in the second groove, and the encapsulation structure covers the extrusion member and the conveying structure in the first groove.

[0009] Preferably, the extrusion member and the conveying structure are provided with a connected cavity, the expansion end is located on the outer surface of the extrusion member, and one end of the conveying structure is sealed and connected to the outer surface of the control end.

[0010] Preferably, the control end includes a piston reservoir, a through hole, a piston and a stud, and a knob. The piston reservoir is sleeved in the second groove, and the through hole of the piston reservoir is sealed and connected to one end of the conveying structure.

[0011] Preferably, the piston reservoir contains a piston, the piston has a stud, and a knob is connected to the stud.

[0012] Preferably, the stud is threaded to the outer surface of the piston reservoir portion.

[0013] The beneficial effects of this utility model are: the pressing part of the locking component is located at both ends of the side of the spraying area, and its expansion end only contacts the side of the motherboard, which avoids blocking the movement path of the paint spray head and ensures that the paint spray head can completely cover all areas of the motherboard, thereby improving the uniformity and integrity of the spraying.

[0014] Second, the control end achieves rapid expansion and contraction of the extrusion component through the threaded transmission of the knob and stud. The operation is simple and precise, which significantly improves the fixing and release efficiency of the motherboard. Furthermore, based on the setting that the extrusion component can expand, the extrusion component is made of silicone material. When its expansion end contacts the side of the motherboard, it is a flexible extrusion, which avoids the mechanical damage to the motherboard caused by traditional rigid clamping, effectively protects the surface and edges of the motherboard, and reduces the defect rate in the production process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a perspective view of the entire embodiment.

[0017] Figure 2 This is a perspective view of the back of the protective plate in this embodiment.

[0018] Figure 3 This is a perspective view of the protective plate and locking assembly before assembly in this embodiment.

[0019] Figure 4 This is a partial perspective view of the extruded part in this embodiment.

[0020] Figure 5 This is a cross-sectional view of the control terminal in this embodiment.

[0021] Figure 6 This is a cross-sectional view of the extruded component and the protective plate assembled in this embodiment.

[0022] Figure 7 This is a diagram illustrating the installation of the protective board and the motherboard in this embodiment.

[0023] In the figure; protective plate 100, spraying area 100a, support end 101, avoidance end 102, encapsulation structure 103, first cover plate 103a, stop block 103a-1, strip plate 103b, first groove 104, second groove 105;

[0024] Locking assembly 200, extrusion member 201, first surface 201a, second surface 201b, expansion end 201c, conveying structure 202, control end 203;

[0025] Piston reservoir 203a, through hole 203a-1, piston 203b, stud 203c, knob 203e. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example

[0030] Reference Figures 1 to 7This is an embodiment of the present invention, which provides a device for improving the pollution of conformal coating, including a protective plate 100 and a spraying area 100a thereon for positioning the main board. The device is characterized in that: a locking component 200 is provided in the non-spraying area of ​​the protective plate 100, wherein the expansion end 201a of the locking component 200 is provided on the side of the spraying area 100a and cooperates with the side of the main board positioned by the spraying area 100a. The locking component 200 includes an extrusion member 201, a conveying structure 202 and a control end 203. The control end 203 is provided on the protective plate 100 and is sealed and connected to the extrusion member 201 through the conveying structure 202. The number of extrusion members 201 is two, respectively located at both ends of the side of the spraying area 100a.

[0031] There are two extrusion parts 201, located at both ends of the side of the spraying area 100a. The expansion end 201a of the extrusion part 201a cooperates with the side of the main board positioned in the spraying area 100a to fix the main board. The conveying structure 202 is used to connect the extrusion part 201 and the control end 203 to transmit control signals or power. The control end 203 is set on the protective plate 100 and is sealed and connected to the extrusion part 201 through the conveying structure 202 to control the expansion or contraction of the extrusion part 201.

[0032] Working principle: Before the spraying operation begins, the main board is placed in the spraying area 100a of the protective plate 100. The locking component 200 is activated by the control terminal 203. The control terminal 203 sends pressure or signal to the extruder 201 through the conveying structure 202, causing the expansion end 201a of the extruder 201 to expand outward and make close contact with the side of the main board, thereby achieving stable fixation of the main board.

[0033] Since the extrusion part 201 is located at both ends of the side of the spraying area 100a, and its expansion end 201a only contacts the side of the motherboard and does not extend to the top or bottom of the motherboard, it will not obstruct the movement path of the paint spray head, ensuring that the paint spray head can completely cover all areas of the motherboard.

[0034] Unlike the first embodiment, the protective plate 100 has a first groove 104 and a second groove 105 at its edge. The extruder 201 and the conveying structure 202 are disposed in the first groove 104, and the control end 203 is disposed in the second groove 105. The encapsulation structure 103 covers the extruder 201 and the conveying structure 202 in the first groove 104. The extruder 201 and the conveying structure 202 have communicating cavities. The expansion end 201a is disposed on the outer surface of the extruder 201, and one end of the conveying structure 202 is sealed to the outer surface of the control end 203. The control end 203 includes a piston storage cylinder 203a, a through hole 203a-1, a piston 203b, a stud 203c, and a knob 203e. The piston storage cylinder 203a is sleeved in the second groove 105. The through hole 203a-1 of the piston storage cylinder 203a is sealed and connected to one end of the conveying structure 202. The piston storage cylinder 203a contains a piston 203b. The piston 203b is provided with a stud 203c. The knob 203e is connected to the stud 203c. The outside of the stud 203c is threaded to part of the inner wall of the piston storage cylinder 203a.

[0035] The first groove 104 is formed at the edge of the protective plate 100 to accommodate the extrusion component 201 and the conveying structure 202. The second groove 105 is formed at the edge of the protective plate 100, adjacent to the first groove 104, to accommodate the control terminal 203. The encapsulation structure 103 covers the first groove 104 to protect the extrusion component 201 and the conveying structure 202, and to prevent varnish from entering the groove during the spraying process. The extrusion component 201 is disposed in the first groove 104, and its outer surface is provided with an expansion end 201a for contacting and fixing the main board to the side. The conveying structure 202 is disposed in the first groove 104 and communicates with the cavity of the extrusion component 201 for conveying... The control end 203, which delivers pressure or medium, is located in the second groove 105 and includes a piston reservoir 203a, a through hole 203a-1, a piston 203b, a stud 203c, and a knob 203e. The piston reservoir 203a is fitted into the second groove 105 and has a through hole 203a-1 on its side wall, which is sealed and connected to one end of the conveying structure 202. The piston 203b is located in the piston reservoir 203a and can slide along the inner wall of the reservoir. The stud 203c is fixed to the piston 203b and its outer surface is threaded to part of the inner wall of the piston reservoir 203a. The knob 203e is connected to the end of the stud 203c and is used to manually adjust the position of the piston 203b.

[0036] Working principle: With knob 203e in the released state, piston 203b is in the initial position of piston reservoir 203a, and the expansion end 201a of extruder 201 is not expanded. The main board can be freely placed in the spraying area 100a. Fixing the main board: Rotating knob 203e, through the threaded transmission of stud 203c, pushes piston 203b to move into piston reservoir 203a. The movement of piston 203b transmits pressure to conveying structure 202 through through hole 203a-1, thereby causing the expansion end 201a of extruder 201 to expand outward and make tight contact with the side of the main board, completing the fixing of the main board; Spraying operation: Start the spraying equipment, and the spray head sprays the main board along the preset path. Since both the extrusion component 201 and the conveying structure 202 are located within the first groove 104 and the encapsulation structure 103 covers it, the spray nozzle will not be obstructed, ensuring that the spray coating evenly covers the entire area of ​​the motherboard. Unlocking the motherboard: After the spray coating is completed, rotate the knob 203e in the opposite direction to make the piston 203b return to the initial position, and the expansion end 201a of the extrusion component 201 contracts, releasing the motherboard from its fixation and allowing the motherboard to be removed. This greatly improves the efficiency of installing and removing the motherboard from the protective plate 100 and the operation process is simple. Compared with the traditional motherboard fixing mechanism, it has a quick and simple effect.

[0037] Unlike the first and second embodiments, as Figure 2 , Figure 5 and Figure 6 As shown, the extrusion component 201 and the conveying structure 202 are fixed in the first groove 104 at the bottom edge of the protective plate 100 by the encapsulation structure 103. The encapsulation structure 103 includes a first cover plate 103a, a stop block 103a-1 and a strip plate 103b. The first cover plate 103a is pressed against the first surface 201a of the extrusion component 201, and the stop block 103a-1 is pressed against the second surface 201b of the extrusion component 201. The two surfaces of the extrusion component 201 are in an intersecting posture, which can ensure that the extrusion component 201 remains stably limited in the first groove 104 when expanding or contracting. The piston reservoir 203a is fixed in the second groove 105 by welding, gluing or other methods. At the same time, the extrusion component 201 and the conveying structure 202 are preferably made of silicone, which has high expansion and contraction efficiency. Its expansion end 201c is also in flexible extrusion when contacting the side of the main board, which has a good protective effect on the main board.

[0038] Installation steps: Place the extruder 201 and the conveying structure 202 in the first groove 104 at the bottom edge of the protective plate 100; ensure that the first surface 201a of the extruder 201 is in contact with the first cover plate 103a and the second surface 201b is in contact with the stop block 103a-1. The two surfaces of the extruder 201 are arranged in an intersecting manner to ensure that it can be stably confined within the first groove 104 during expansion or contraction. The first cover plate 103a and the stop block 103a-1 are fixed using the strip plate 103b to complete the installation of the encapsulation structure 103, ensuring that the extruder 201 and the conveying structure 202 are firmly encapsulated within the first groove 104. The piston reservoir 203a is placed in the second groove 105 and fixed by welding or adhesive. The piston 203b is installed into the piston reservoir 203a, ensuring that the stud 203c on the piston 203b is threadedly connected to the inner wall of the piston reservoir 203a. The knob 203e is connected to the end of the stud 203c for manually adjusting the position of the piston 203b. One end of the conveying structure 202 is sealed to the through hole 203a-1 on the piston reservoir 203a to ensure that pressure or medium can be transmitted to the extruder 201 through the conveying structure 202. Finally, the sealing of the connection is checked to ensure that there is no leakage.

[0039] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0040] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for improving conformal coating contamination, comprising a protective plate (100) and a spraying area (100a) thereon for positioning the main plate, characterized in that: The non-painted area of ​​the protective plate (100) is provided with a locking component (200), wherein the expansion end (201a) of the locking component (200) is located on the side of the painted area (100a) and cooperates with the side of the main board positioned in the painted area (100a).

2. The device for improving the contamination of conformal coatings as described in claim 1, characterized in that: The locking assembly (200) includes an extruder (201), a conveying structure (202), and a control end (203). The control end (203) is located on the protective plate (100) and is sealed and connected to the extruder (201) through the conveying structure (202).

3. The device for improving the contamination of conformal coatings as described in claim 2, characterized in that: The number of extrusion parts (201) is two, located at both ends on the side of the spraying area (100a).

4. The device for improving the contamination of conformal coatings as described in claim 1 or 2, characterized in that: The edge of the protective plate (100) is provided with a first groove (104) and a second groove (105). The extrusion piece (201) and the conveying structure (202) are located in the first groove (104), and the control end (203) is located in the second groove (105). The encapsulation structure (103) covers the extrusion piece (201) and the conveying structure (202) in the first groove (104).

5. The device for improving the contamination of conformal coatings as described in claim 4, characterized in that: The extrusion member (201) and the conveying structure (202) are provided with a connected cavity, the expansion end (201a) is provided on the outer surface of the extrusion member (201), and one end of the conveying structure (202) is sealed and connected to the outer surface of the control end (203).

6. The device for improving the contamination of conformal coatings as described in claim 4, characterized in that: The control terminal (203) includes a piston storage cylinder (203a), a through hole (203a-1), a piston (203b), a stud (203c), and a knob (203e). The piston storage cylinder (203a) is sleeved in the second groove (105), and the through hole (203a-1) of the piston storage cylinder (203a) is sealed and connected to one end of the conveying structure (202).

7. The device for improving the contamination of conformal coatings as described in claim 6, characterized in that: The piston reservoir (203a) is provided with a piston (203b), the piston (203b) is provided with a stud (203c), and a knob (203e) is connected to the stud (203c).

8. The device for improving the contamination of conformal coatings as described in claim 7, characterized in that: The stud (203c) is threaded to the outer side of the piston reservoir (203a) part of the inner wall.

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