Gluing equipment with dust removal function
By introducing an electrostatic dust removal device and a ventilation system into the gluing equipment, the problem of removing fine impurities from the gas was solved, achieving high gas cleanliness and improving the production quality of printed circuit boards.
Patent Information
- Application Number
- CN202520351523.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing gluing equipment cannot effectively remove fine impurities from the gas, and cannot meet the stringent requirements of printed circuit boards for gas cleanliness.
An electrostatic dust removal device is adopted, which includes a high-voltage electric field area and a collection area. Through electrostatic action, dust particles in the gas are charged and deposited in the collection area. Combined with the design of the exhaust fan and pipeline, the gas dust removal of the cooling chamber and oven is achieved.
This improves the cleanliness of the gas, meeting the stringent requirements of printed circuit boards for impurities and foreign matter, and ensuring production quality.
Smart Images

Figure CN223931599U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to gluing equipment, and more particularly to a gluing equipment with dust removal function. Background Technology
[0002] Prepreg is a component of printed circuit boards, primarily serving as a dielectric layer sandwiched between a core board and copper foil, or between two core boards. Generally, prepreg is composed of materials such as glass fabric, resin, curing agent, accelerator, solvent, and additive. In the prepreg production process, the surface of the glass fabric is first impregnated with resin; this process is called coating.
[0003] Furthermore, the cleanliness of the gas introduced into the gluing equipment during the gluing process affects the quality of the prepreg. The gluing equipment includes a cooling chamber and an oven. Prepreg produced in continuous production must be pre-cooled by cold air during the turning process in the top cooling chamber to prevent adhesion to the turning roller surface. In addition, the oven is usually designed with hot air inlets, through which hot air enters the oven to heat the prepreg. Moreover, current gas dust removal methods involve filtering the introduced gas through multiple layers of filters. However, current filtration methods are no longer sufficient to meet the increasingly stringent requirements of modern printed circuit boards for impurities and foreign matter. Utility Model Content
[0004] One objective of this invention is to provide a coating equipment with a dust removal function, which reduces the content of fine impurities to meet the stringent requirements of printed circuit boards for impurities and foreign matter.
[0005] To achieve the above objectives, this utility model provides a coating device with dust removal function. A cooling chamber is located on one side of the oven assembly and is equipped with multiple cold air inlets and multiple exhaust outlets. Multiple exhaust pipes are connected to the exhaust outlets. A cold air inlet pipe is connected to the cold air inlets. An electrostatic dust removal device is connected to the cold air inlet pipe. The electrostatic dust removal device has a high-voltage electric field area and a collection area with an electric field force. The gas in the cold air inlet pipe passes through the high-voltage electric field area, causing charged dust particles to move under the action of the electric field force and deposit in the collection area. A conveying structure connects the oven assembly and the cooling chamber.
[0006] In one embodiment of the present invention, the gluing equipment further includes an impregnation tank, which is located on the other side of the drying oven device, and the conveying structure extends to the impregnation tank.
[0007] In one embodiment of the present invention, the gluing equipment further includes multiple exhaust fans, which are connected to exhaust pipes and cold air inlet pipes.
[0008] In one embodiment of the present invention, the oven apparatus includes a first oven located upstream of the conveying structure and a second oven located downstream of the conveying structure.
[0009] In one embodiment of the present invention, the oven device includes multiple hot air exhaust structures and multiple hot air inlet structures. The hot air exhaust structures are disposed on the side of the first oven and the second oven near the impregnation tank, and the hot air inlet structures are disposed on the side of the first oven and the second oven near the cooling chamber.
[0010] In one embodiment of the present invention, the gluing equipment further includes a second electrostatic dust removal device, which is connected to a hot air inlet structure.
[0011] In one embodiment of the present invention, the gluing equipment further includes a second exhaust fan, which is connected to a second electrostatic dust removal device.
[0012] In one embodiment of the present invention, the conveying structure includes a plurality of rollers and a conveyor belt disposed on the rollers.
[0013] In one embodiment of the present invention, the roller includes a steering wheel, which is located in a cooling chamber.
[0014] Compared with existing technologies, the coating equipment of this invention with dust removal function uses an electrostatic dust removal device to electrostatically remove dust from the gas entering the cooling chamber and oven. Furthermore, the electrostatic dust removal device of this invention has a connected high-voltage electric field area and a collection area. The high-voltage electric field area charges the dust particles in the gas, and the collection area has an electric field force. When the gas passes through the high-voltage electric field area, the dust particles in the gas become charged first. Then, when it enters the collection area, the charged dust particles move under the influence of the electric field force and deposit in the collection area. Therefore, the coating equipment of this invention achieves electrostatic dust removal of the gas entering the cooling chamber or oven through the electrostatic dust removal device, thereby meeting the stringent requirements for clean gas in current printed circuit boards. Attached Figure Description
[0015] Figure 1 This is a schematic diagram illustrating the setup of the adhesive application device with dust removal function according to this utility model;
[0016] Figure 2 This is a schematic diagram of the dust removal process for the gluing equipment of this utility model;
[0017] In the attached figures, the following labels are used:
[0018] 1: Glue application equipment
[0019] 10: Oven Equipment
[0020] 11: First Oven
[0021] 12: Second Oven
[0022] 13: Hot air exhaust structure
[0023] 14: Hot air inlet structure
[0024] 15: Second electrostatic dust removal equipment
[0025] 16: Second exhaust fan
[0026] 20: Cooling Chamber
[0027] 21: Cold air inlet
[0028] 22: Exhaust vent
[0029] 30: Exhaust duct
[0030] 40: Cold air inlet duct
[0031] 41: Exhaust fan
[0032] 50: Electrostatic dust removal device
[0033] 51: High-voltage electric field region
[0034] 52: Collection Area
[0035] 60: Conveying structure
[0036] 61: Roller
[0037] 62: Conveyor Belt
[0038] 63: Steering wheel
[0039] 70: Dipping tank. Detailed Implementation
[0040] The detailed description and technical content of this utility model are explained below with reference to the accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit this utility model.
[0041] Please refer to Figure 1 This is a schematic diagram illustrating the setup of the coating application equipment with dust removal function according to this utility model. This utility model is a coating application equipment 1 with dust removal function, comprising an oven device 10, a cooling chamber 20, multiple exhaust pipes 30, a cold air inlet pipe 40, an electrostatic dust removal device 50, and a conveying structure 60. The cooling chamber 20 is located on one side of the oven device 10 and is provided with multiple cold air inlets 21 and multiple exhaust outlets 22. These exhaust outlets 22 can be located at the top of the cooling chamber 20 or at the connection point between the cooling chamber 20 and the oven device 10. Furthermore, the exhaust pipes 30 are connected to and correspond to the exhaust outlets 22 to better maintain the stability and uniformity of the hot air inside the oven device 10.
[0042] Furthermore, the cold air inlet duct 40 is connected to the cold air inlets 21. The electrostatic dust removal device 50 is connected to the cold air inlet duct 40 and has a high-voltage electric field region 51 and a collection region 52 with an electric field force. The gas in the cold air inlet duct 40 passes through the high-voltage electric field region 51, causing charged dust particles to move under the action of the electric field force and deposit in the collection region 52.
[0043] In this embodiment, the gluing equipment 1 further includes multiple exhaust fans 41. These exhaust fans 41 are connected to the exhaust pipes 30 and the cold air inlet pipe 40, providing power for cold air to enter the cooling chamber 20. Furthermore, these exhaust fans 41 mix and extract the cold air entering through the cold air inlet 21 with the hot air rising from the oven device 10, and then pass it through the electrostatic dust removal device 50 into the cooling chamber 20. Subsequently, it re-enters the cooling chamber 20 through the cold air inlet pipe 40, achieving gas circulation at the top of the gluing equipment 1. Accordingly, both externally input cold air and recirculated cold air can enter the cooling chamber 20 through the cold air inlet 21.
[0044] More specifically, the gluing equipment 1 of this invention utilizes exhaust fans 41 to draw out the cold air from the cooling chamber 20 and the hot air rising from the oven device 10, which then passes through an electrostatic dust removal device 50 before re-entering the cooling chamber 20. This achieves gas circulation at the top of the gluing equipment 1 and ensures a continuous supply of cold air to the cooling chamber 20. Furthermore, the cooling and circulation of the cold air drawn from the cooling chamber 20 and the hot air rising from the oven device 10 achieves the recycling of the exhaust air from the top of the gluing equipment 1.
[0045] Furthermore, the conveying structure 60 includes a plurality of rollers 61 and a conveyor belt 62 disposed on the rollers 61. The conveying structure 60 connects the oven assembly 10 and the cooling chamber 20 to convey workpieces. In this embodiment, the rollers 61 include a steering wheel 63. The steering wheel 63 is located in the cooling chamber 20.
[0046] Furthermore, the coating equipment 1 further includes an impregnation tank 70. The impregnation tank 70 is located on the other side of the oven assembly 10, and the conveying structure 60 extends into the impregnation tank 70. It should be noted that the coating equipment 1 of this invention can pre-impregnate copper-clad laminates or glass cloth in the impregnation tank 70. Afterwards, the copper-clad laminates or glass cloth are conveyed to the oven assembly 10 via the conveying structure 60. Accordingly, the hot air inside the oven assembly 10 can heat the copper-clad laminates or glass cloth inside the oven assembly 10.
[0047] Specifically, the oven apparatus 10 includes a first oven 11 located upstream of the conveying structure 60 and a second oven 12 located downstream of the conveying structure 60. Furthermore, the oven apparatus 10 also includes multiple hot air exhaust structures 13 and multiple hot air inlet structures 14. The hot air exhaust structures 13 are disposed on the side of the first oven 11 and the second oven 12 near the impregnation tank 70. The hot air inlet structures 14 are disposed on the side of the first oven 11 and the second oven 12 near the cooling chamber 20. It should be noted that the hot air discharged from the hot air exhaust structures 13 can be processed such as by combustion.
[0048] In this embodiment, the gluing equipment 1 further includes a second electrostatic dust removal device 15 and a second exhaust fan 16. The second electrostatic dust removal device 15 is connected to the hot air inlet structure 14. Furthermore, the second exhaust fan 16 is connected to the second electrostatic dust removal device 51.
[0049] Please refer to again Figure 2 This is a schematic diagram of the dust removal process in the coating equipment of this utility model. The electrostatic dust removal device 50 of this utility model has a high-voltage electric field region 51 and a collection region 52 connected to each other. The high-voltage electric field region 51 can charge dust particles in the gas. In addition, the collection region 52 has an electric field force. Accordingly, the gas first passes through the high-voltage electric field region 51, and if there are dust particles in the gas, they will be charged. Then, the gas enters the collection region 52. At this time, the charged dust particles will move and deposit in the collection region 52 under the action of the electric field force.
[0050] Accordingly, the coating equipment of this utility model achieves electrostatic dust removal of the gas entering the cooling chamber 20 or the oven device 10 by setting the electrostatic dust removal device 50, thereby meeting the current requirements of printed circuit boards for clean gas.
[0051] The above description is only a preferred embodiment of the present utility model and is not intended to define the patent scope of the present utility model. Other equivalent changes that utilize the patent spirit of the present utility model should all fall within the patent scope of the present utility model.
Claims
1. A gluing device with dust removal function, characterized in that: include: One drying oven device; A cooling chamber is located on one side of the oven unit and is equipped with multiple cold air inlets and multiple exhaust outlets; Multiple exhaust ducts connect to these exhaust vents; A cold air inlet duct connects to these cold air inlets; An electrostatic precipitator is connected to a cold air inlet duct. The electrostatic precipitator has a high-voltage electric field region and a collection region with an electric field force. Gas in the cold air inlet duct passes through the high-voltage electric field region, causing charged dust particles to move and deposit in the collection region under the influence of the electric field force. A conveying structure connects the oven unit and the cooling chamber.
2. The gluing equipment with dust removal function as described in claim 1, characterized in that: It further includes an immersion tank located on the other side of the oven assembly, and the conveying structure extends to the immersion tank.
3. The gluing equipment with dust removal function as described in claim 1, characterized in that: It also includes multiple exhaust fans, which are connected to the exhaust ducts and the cold air inlet duct.
4. The gluing equipment with dust removal function as described in claim 2, characterized in that: The oven apparatus includes a first oven located upstream of the conveying structure and a second oven located downstream of the conveying structure.
5. The gluing equipment with dust removal function as described in claim 4, characterized in that: The oven device includes multiple hot air exhaust structures and multiple hot air inlet structures. The hot air exhaust structures are located on the side of the first oven and the second oven near the impregnation tank, and the hot air inlet structures are located on the side of the first oven and the second oven near the cooling chamber.
6. The gluing equipment with dust removal function as described in claim 5, characterized in that: It further includes a second electrostatic precipitator connected to the hot air inlet structures.
7. The gluing equipment with dust removal function as described in claim 6, characterized in that: It further includes a second exhaust fan connected to the second electrostatic dust removal device.
8. The gluing equipment with dust removal function as described in claim 1, characterized in that: The conveying structure includes multiple rollers and a conveyor belt mounted on the rollers.
9. The gluing equipment with dust removal function as described in claim 8, characterized in that: Among these rollers is a steering wheel located in the cooling chamber.