A surface coating device for SMT assembly
By installing static elimination and purification components on the spraying machine body, the problem of static electricity effects during SMT component coating is solved, achieving high-quality coating and a clean working environment, thus improving safety and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUZHOU CHUANGGAO ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-30
AI Technical Summary
In the SMT (Surface Mount Technology) assembly process, static electricity affects the coating effect and product quality, and existing equipment is difficult to effectively eliminate static electricity.
Static elimination components are installed on the surface of the spraying machine body. Static electricity is eliminated by an ion fan, and floating waste during the spraying process is cleaned by a purification component, including the combination of activated carbon filter box, exhaust fan and suction hood.
It improves the quality of spraying and the cleanliness of the working environment, enhances work safety, and ensures high-quality spraying results for products.
Smart Images

Figure CN224423283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of SMT (Surface Mount Technology) manufacturing equipment, and more specifically, to a surface coating device for SMT components. Background Technology
[0002] SMT stands for Surface Mount Technology, which is currently the most popular technology and process in the electronics assembly industry. SMT refers to a series of processes performed on a PCB (Printed Circuit Board).
[0003] When performing surface coating on SMT components, a coating machine is required. However, during the feeding process of the coating machine, it is inconvenient to perform static electricity removal on the SMT components, which affects the subsequent coating effect and product quality. Therefore, we propose a surface coating device for SMT components to solve the above-mentioned problems. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a surface coating device for SMT components. An automatic feeder is inserted through the feed inlet on the surface of the coating machine body. SMT components are placed on the surface of the automatic feeder and enter the interior of the coating machine body. When the SMT component moves to the inner position of the assembly rack, an ion fan is started through an external control device to blow ion air onto the surface of the SMT component and the feeding area, eliminating static electricity and improving work safety and product coating quality. A limiting ring is fitted on the outside of the shaft frame above the assembly rack. The bottom of the limiting ring is fixedly connected to the ion fan. According to the needs of use, the limiting ring is rotated around the shaft frame as the axis to adjust and fix the blowing direction of the ion fan.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A surface coating device for SMT components includes a coating machine body, an inspection door panel installed on the surface of the coating machine body, a feed inlet opened on the surface of the coating machine body, and a coating assembly disposed inside the coating machine body. An electrostatic elimination assembly is installed on the outside of the coating machine body.
[0009] The static elimination assembly includes an assembly plate mounted on the surface of the spraying machine body, an assembly frame fixedly connected to the bottom end of the assembly plate, a shaft frame mounted above the assembly frame, a limiting ring sleeved on the outside of the shaft frame and movably connected, and an ion fan fixedly connected to the bottom of the limiting ring.
[0010] Preferably, the surface of the assembly frame is provided with a strip-shaped through hole, and the ion fan is located directly above the strip-shaped through hole.
[0011] Preferably, the assembly frame is mounted outside the feed inlet of the spraying machine body, and the end face of the assembly frame is in contact with the surface of the spraying machine body.
[0012] Preferably, the surface of the spraying machine body is provided with threaded grooves, and the mounting holes on the surface of the mounting plate correspond to the threaded grooves.
[0013] Preferably, a reserved hole is provided on the surface of the spraying machine body, and a purification component is installed on the back of the spraying machine body.
[0014] Preferably, the purification component includes an activated carbon filter box fixedly connected to the surface of the spraying machine body, an exhaust fan installed on the surface of the activated carbon filter box, an exhaust pipe connected to the exhaust end of the exhaust fan, and an exhaust hood connected to the surface of the exhaust pipe.
[0015] Preferably, the suction hood is inserted into a pre-drilled hole in the body of the sprayer, and a sealing ring is bonded to the connection between the suction hood and the body of the sprayer.
[0016] 3. Beneficial effects
[0017] Compared with existing technologies, the advantages of this utility model are:
[0018] (1) The spraying machine body of this solution is equipped with an electrostatic elimination component. An automatic feeding rack is inserted through the feed port on the surface of the spraying machine body. SMT components are placed on the surface of the automatic feeding rack and enter the spraying machine body. When the SMT components move to the inner position of the assembly rack, the ion fan is started through the external control equipment to blow ion air on the surface of the SMT components and the feeding area to eliminate static electricity, improve the safety of the work and the quality of product spraying. A limit ring is sleeved on the outside of the shaft frame above the assembly rack. The bottom of the limit ring is fixedly connected to the ion fan. According to the needs of use, the limit ring is rotated with the shaft frame as the axis to adjust and fix the blowing direction of the ion fan.
[0019] (2) The purification components of this solution include an activated carbon filter box fixedly connected to the surface of the spraying machine body. The exhaust fan on the surface of the activated carbon filter box is connected to the exhaust pipe and the exhaust hood. During the spraying process of the product, the floating waste generated by the spraying is drawn into the interior of the activated carbon filter box along the exhaust pipe under the negative pressure at the opening of the exhaust hood. After effective cleaning treatment, it is discharged in a directional manner, thereby improving the cleanliness of the working environment. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the spraying machine body and the suction hood of this utility model;
[0022] Figure 3 This is a schematic diagram of the spraying machine body and activated carbon filter box of this utility model;
[0023] Figure 4 This is a schematic diagram of the assembly frame and ion fan structure of this utility model.
[0024] Explanation of the labels in the diagram:
[0025] 1. Spraying machine body; 101. Feed inlet; 102. Threaded groove; 2. Inspection door panel; 3. Assembly frame; 301. Strip-shaped through hole; 4. Shaft bracket; 5. Ionizing fan; 6. Limiting ring; 7. Assembly plate; 8. Suction hood; 9. Suction pipe; 10. Activated carbon filter box; 11. Exhaust fan; 12. Sealing ring. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] Example 1:
[0028] Please see Figure 1-4 A surface coating device for SMT components includes a coating machine body 1, an inspection door panel 2 installed on the surface of the coating machine body 1, a feed port 101 opened on the surface of the coating machine body 1, and a coating assembly disposed inside the coating machine body 1. An electrostatic elimination assembly is installed on the outside of the coating machine body 1.
[0029] The static elimination assembly includes an assembly plate 7 mounted on the surface of the sprayer body 1, an assembly frame 3 fixedly connected to the bottom of the assembly plate 7, a shaft frame 4 mounted on the top of the assembly frame 3, a limiting ring 6 sleeved on the outside of the shaft frame 4 and movably connected, and an ion fan 5 fixedly connected to the bottom of the limiting ring 6.
[0030] The surface of the assembly frame 3 has a strip-shaped through hole 301. The ion fan 5 is located directly above the strip-shaped through hole 301. The assembly frame 3 is mounted outside the feed inlet 101 of the spraying machine body 1. The end face of the assembly frame 3 is in contact with the surface of the spraying machine body 1. The surface of the spraying machine body 1 has a threaded groove 102. The assembly holes on the surface of the assembly plate 7 correspond to the threaded groove 102.
[0031] It should be noted that an electrostatic elimination component is installed on the outside of the spraying machine body 1. An automatic feeding rack is inserted through the feed inlet 101 on the surface of the spraying machine body 1. SMT components are placed on the surface of the automatic feeding rack and enter the interior of the spraying machine body 1. When the SMT component moves to the inner position of the assembly rack 3, the ion fan 5 is started through the external control equipment to blow ion air on the surface of the SMT component and the feeding area to eliminate static electricity, improve work safety and product spraying quality. A limiting ring 6 is sleeved on the outside of the shaft frame 4 above the assembly rack 3. The bottom of the limiting ring 6 is fixedly connected to the ion fan 5. According to the needs of use, the limiting ring 6 is rotated around the shaft frame 4 as the axis to adjust and fix the blowing direction of the ion fan 5.
[0032] See Figure 1-4 The surface of the spraying machine body 1 is provided with a reserved hole. A purification component is installed on the back of the spraying machine body 1. The purification component includes an activated carbon filter box 10 fixedly connected to the surface of the spraying machine body 1, an exhaust fan 11 installed on the surface of the activated carbon filter box 10, an exhaust pipe 9 connected to the exhaust end of the exhaust fan 11, and an exhaust hood 8 connected to the surface of the exhaust pipe 9. The exhaust hood 8 is inserted into the reserved hole of the spraying machine body 1, and a sealing ring 12 is bonded to the connection between the exhaust hood 8 and the spraying machine body 1.
[0033] It should be noted that the purification component includes an activated carbon filter box 10 fixedly connected to the surface of the spraying machine body 1. The exhaust fan 11 on the surface of the activated carbon filter box 10 is connected to the exhaust hood 8 through the exhaust pipe 9. During the product spraying process, the floating waste generated by the spraying is drawn into the interior of the activated carbon filter box 10 along the exhaust pipe 9 under the negative pressure at the opening of the exhaust hood 8. After effective cleaning treatment, it is discharged in a directional manner, improving the cleanliness of the working environment.
[0034] In use: An electrostatic elimination component is installed on the exterior of the spraying machine body 1. An automatic feeder is inserted through the feed inlet 101 on the surface of the spraying machine body 1. SMT components are placed on the surface of the automatic feeder and enter the spraying machine body 1. When the SMT component moves to the inner position of the assembly rack 3, the ion fan 5 is activated via an external control device to blow ion air onto the surface of the SMT component and the feeding area, eliminating static electricity and improving work safety and product coating quality. A limiting ring 6 is fitted around the shaft frame 4 above the assembly rack 3, and the bottom of the limiting ring 6 is fixedly connected to the ion fan. The blower 5, with the shaft frame 4 as the axis, rotates the limiting ring 6 to adjust and fix the blowing direction of the ion blower 5 according to the needs of use; the purification component includes an activated carbon filter box 10 fixedly connected to the surface of the spraying machine body 1, and the exhaust fan 11 on the surface of the activated carbon filter box 10 is connected to the exhaust pipe 9 and the exhaust hood 8 through a conductive connection. During the product spraying process, the floating waste generated by spraying is drawn into the interior of the activated carbon filter box 10 along the exhaust pipe 9 under the negative pressure at the opening of the exhaust hood 8. After effective cleaning treatment, it is discharged in a directional manner to improve the cleanliness of the working environment.
[0035] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A surface coating apparatus for SMT components, comprising a coating machine body (1), an inspection door panel (2) mounted on the surface of the coating machine body (1), a feed inlet (101) opened on the surface of the coating machine body (1), and a coating assembly disposed inside the coating machine body (1), characterized in that: The body of the spraying machine (1) is equipped with an electrostatic elimination component; The static elimination assembly includes an assembly plate (7) mounted on the surface of the sprayer body (1), an assembly frame (3) fixedly connected to the bottom of the assembly plate (7), a shaft frame (4) mounted above the assembly frame (3), a limiting ring (6) sleeved on the outside of the shaft frame (4) and movably connected, and an ion fan (5) fixedly connected to the bottom of the limiting ring (6).
2. The surface spraying device for SMT patch according to claim 1, characterized in that: The surface of the assembly frame (3) is provided with a strip-shaped through hole (301), and the ion fan (5) is located directly above the strip-shaped through hole (301).
3. The surface spraying device for SMT patch according to claim 1, characterized in that: The assembly frame (3) is mounted outside the feed inlet (101) of the spraying machine body (1), and the end face of the assembly frame (3) is in contact with the surface of the spraying machine body (1).
4. The surface spraying device for SMT patch according to claim 1, characterized in that: The surface of the spraying machine body (1) is provided with a threaded groove (102), and the mounting holes on the surface of the mounting plate (7) correspond to the threaded groove (102).
5. The surface spraying device for SMT patch according to claim 1, characterized in that: The surface of the spraying machine body (1) is provided with reserved holes, and a purification component is installed on the back of the spraying machine body (1).
6. The surface spraying device for SMT patches of claim 5, wherein: The purification assembly includes an activated carbon filter box (10) fixedly connected to the surface of the sprayer body (1), an exhaust fan (11) installed on the surface of the activated carbon filter box (10), an air intake pipe (9) connected to the air intake end of the exhaust fan (11), and an air intake hood (8) connected to the surface of the air intake pipe (9).
7. The surface spraying device for SMT patches of claim 6, wherein: The suction hood (8) is inserted into the reserved hole of the spraying machine body (1), and a sealing ring (12) is bonded to the connection between the suction hood (8) and the spraying machine body (1).