A device for dusting the surface of a glass substrate
By combining the electrostatic elimination device and the dust collection system, along with airflow control and sensor monitoring, the problems of electrostatic adsorption and shaking after glass substrate cutting are solved, achieving thorough removal of glass powder and stability of the glass substrate, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RAINBOW (HEFEI) LIQUID CRYSTAL GLASS CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-30
AI Technical Summary
In the prior art, static electricity is easily generated during the cutting process of glass substrates, making it difficult to completely remove the static adsorption of glass powder. Furthermore, the glass substrate is unstable during negative pressure adsorption, easily shaking and increasing the risk of deformation and breakage, which affects product quality and efficiency.
The system employs a combination of static electricity elimination and a dust collection system, along with airflow control components and sensor monitoring, to eliminate static electricity before dust collection. It stabilizes the glass position through low-speed buffered airflow and uses a dust collection device that combines multi-stage filtration and a vacuum pump to ensure the complete removal of glass dust.
It effectively overcomes electrostatic adsorption, improves dust removal efficiency and quality, reduces glass substrate shaking, lowers the risk of deformation and breakage, and enhances production efficiency and product quality.
Smart Images
Figure CN224423715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass substrate processing technology, and in particular to a dust removal device for the surface of glass substrates. Background Technology
[0002] Glass substrate processing refers to the process of applying a series of techniques to raw glass materials to transform them into glass substrate products that meet specific requirements. Specifically, after the glass flows out of the muffle furnace, it undergoes a series of processing steps, including transverse segmentation and cutting, robot loading, weighing, longitudinal cutting, cooling, thickness measurement, automatic inspection, manual sampling, sorting, and unloading.
[0003] After the substrate glass undergoes a transverse slicing process, some glass powder often remains on its surface. Commonly used techniques typically employ vacuum adsorption to remove this glass powder. Specifically, a vacuum device generates suction to remove the glass powder from the substrate glass surface, thus cleaning the glass surface.
[0004] The shortcomings of the existing technical solutions are as follows: Static electricity is easily generated during the cutting and other processes of the substrate glass, causing glass powder to adhere to the glass surface. Vacuum adsorption struggles to overcome this electrostatic attraction, leading to incomplete removal of the glass powder. Furthermore, during negative pressure adsorption of glass powder, the glass substrate is unstable and prone to shaking. Since the substrate glass is relatively brittle, this shaking subjects it to additional stress, increasing the risk of deformation or even breakage. This not only affects product quality but also wastes raw materials, increases production costs, and reduces production efficiency. Utility Model Content
[0005] This invention provides a dust removal device for glass substrate surfaces, which can solve the problem in the prior art where static electricity exists on the surface of glass powder, making it difficult for negative pressure to overcome this electrostatic adsorption force, resulting in incomplete removal of glass powder.
[0006] A dust removal device for glass substrate surfaces includes a housing frame. A conveyor belt assembly for moving the glass substrate is fitted at the top of the housing frame. Multiple sets of transfer devices for hoisting and fixing the glass substrate are installed below the conveyor belt assembly. An electrostatic eliminator for eliminating static electricity on the glass substrate surface and a dust collection system for absorbing glass dust from the glass substrate surface and the air are fitted inside the housing frame. An airflow control component for reducing glass swaying is installed at the bottom inside the housing frame.
[0007] As a further embodiment of this utility model: the airflow control component includes two sets of side airflow buffer devices respectively fixedly installed on the front and rear side walls of the lower part of the outer shell frame. The output ends of the two sets of side airflow buffer devices are arranged facing each other. The two sets of side airflow buffer devices introduce low-speed, directional buffer airflow from both sides of the glass to help stabilize the glass position and reduce glass shaking. A sensor for detecting the glass shaking state is provided at the top of the outer shell frame.
[0008] As a further embodiment of this utility model: the dust collection system includes a first dust collection component disposed at the bottom of the outer shell frame for forming a longitudinal airflow, and a second dust collection component for performing preliminary cleaning of the air and the surface of the glass substrate before entering the working area of the first dust collection component.
[0009] As a further embodiment of this utility model: multiple sets of ventilation holes are provided on the upper part of the outer shell frame, and an air filter is provided inside the ventilation holes. Outside air enters the interior of the outer shell frame through the ventilation holes and the air filter.
[0010] As a further embodiment of this utility model: the first dust collection component includes a negative pressure chamber disposed inside the outer shell frame, wherein an intelligent vacuum pump group and a multi-stage filter that cooperates with the output end of the intelligent vacuum pump group are disposed in the negative pressure chamber, and a first wide suction head that communicates with the output end of the multi-stage filter is provided at the bottom of the outer shell frame, wherein the width of the first wide suction head covers the entire width of the glass substrate.
[0011] As a further embodiment of this utility model: the second vacuuming assembly includes two sets of second wide suction heads respectively fixedly disposed on the front side and the inner rear side of the outer shell frame. Both sets of second wide suction heads are arranged longitudinally, with their height adapted to the height of the glass substrate, and both are connected to the output end of the multi-stage filter.
[0012] As a further embodiment of this utility model: a glass curtain is provided on the front side of the outer shell frame to facilitate the observation of the glass substrate status by the staff.
[0013] As a further embodiment of this utility model: the static elimination device includes two sets of ion bars respectively fixedly installed on the front side and the inner rear side of the outer shell frame.
[0014] As a further embodiment of this utility model: the transfer device includes a transfer trolley fixedly mounted on the conveyor belt assembly, and the transfer trolley is fixedly equipped with a clamp for fixing the substrate glass.
[0015] As a further embodiment of this utility model: the input port of the outer shell frame is provided with an automatic opening and closing door.
[0016] The beneficial effects of this utility model are:
[0017] 1. In use, the second suction component of the dust collection system performs initial cleaning, while the ion bar outputs ionized air to neutralize static electricity on the glass substrate surface and simultaneously blows off some glass powder, effectively weakening the adhesion of static electricity to the glass powder and removing obstacles for subsequent dust collection. The first suction component then uses negative pressure to centrally clean up the glass powder. Through the coordinated operation of the static electricity elimination device and the dust collection system, a process of first eliminating static electricity and then removing dust is achieved, avoiding the problem of incomplete glass powder removal caused by static electricity and improving dust removal efficiency and quality.
[0018] 2. In use, this invention employs two sets of side airflow buffer devices to introduce low-speed, directional buffer airflow from both sides of the glass, providing stable support for the glass substrate. Sensors monitor the glass's swaying state in real time and transmit the information to a PID controller. The PID controller utilizes a machine learning module to precisely adjust the airflow output velocity of the side airflow buffer devices based on the glass's swaying state, achieving dynamic control of the glass's swaying and ensuring the stability of the glass substrate during dust removal. Attached Figure Description
[0019] Figure 1 This utility model provides a schematic diagram of the overall structure of a dust removal device for glass substrate surfaces;
[0020] Figure 2 A schematic diagram of the internal structure of the outer frame of a dust removal device for glass substrate surface provided by this utility model;
[0021] Figure 3 This utility model provides a schematic diagram of the relative position structure of a dust collection system for a dust removal device on the surface of a glass substrate;
[0022] Figure 4 This utility model provides a schematic diagram of the structure of a transfer device for a dust removal device on the surface of a glass substrate.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Outer frame; 101. Conveyor belt assembly; 102. Glass curtain panel; 103. Ventilation hole; 2. Dust collection system; 201. First dust collection assembly; 202. Second dust collection assembly; 3. Airflow control assembly; 301. Side airflow buffer device; 302. Sensor; 4. Static electricity elimination device; 6. Transfer device; 601. Transfer trolley; 602. Fixture. Detailed Implementation
[0025] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.
[0026] like Figures 1 to 4As shown in the figure, this utility model provides a dust removal device for glass substrate surfaces, including a housing frame 1. A conveyor belt assembly 101 is fitted onto the top of the housing frame 1, which drives the glass substrate to move. A drive system is also provided within the housing frame 1 to move the conveyor belt assembly 101 along the top of the housing frame 1. Multiple sets of transfer devices 6 are provided on the conveyor belt assembly 101 for hoisting and fixing the glass substrate. Specifically, the transversely segmented glass substrate is fixed to the transfer device 6 by a hoisting mechanism, and then transported to the dust removal area by the conveyor belt assembly 101.
[0027] To eliminate static electricity on the glass substrate surface, a static eliminator 4 is installed inside the outer casing frame 1. Simultaneously, a dust collection system 2 is also installed inside the outer casing frame 1 to absorb glass dust from the glass substrate surface and the air. Through the action of the static eliminator 4, static electricity on the glass surface can be eliminated, thereby reducing the difficulty of negative pressure dust collection by the dust collection system 2.
[0028] In addition, to reduce the swaying of the glass during the dust removal process, an airflow control assembly 3 is installed inside the lower part of the outer casing frame 1. This airflow control assembly 3 can provide buffered airflow from both sides of the substrate glass to help stabilize the glass position and reduce swaying. Specifically, the airflow control assembly 3 includes two sets of side airflow buffer devices 301, which are respectively fixedly installed on the front and rear side walls inside the lower part of the outer casing frame 1. The output ends of these two sets of side airflow buffer devices 301 are arranged facing each other, introducing low-speed, directional buffered airflow from both sides of the glass.
[0029] To monitor the swaying of the glass in real time, a sensor 302 is installed at the top inside the housing frame 1. The sensor 302 is preferably a displacement sensor. This sensor 302 can detect the swaying of the substrate glass and transmit the detection information to the PID controller. The PID controller uses this information to optimize the airflow control algorithm, reducing the sway of the substrate glass by controlling the airflow output flow of the side airflow buffer device 301.
[0030] The PID controller is equipped with a machine learning module. Initially, it records different swaying states of the substrate glass to correspond to specific airflow output velocities, thus achieving neural network learning. In actual use, the PID controller can identify the swaying state of the substrate glass and adjust the airflow output velocity of the side airflow buffer device 301 accordingly. The PID controller itself and its learning process are existing technologies and are not protected by this patent.
[0031] In one specific embodiment, the dust collection system 2 includes a first dust collection component 201 disposed at the bottom of the inner shell frame 1, and a second dust collection component 202 for preliminary cleaning of the glass substrate before it enters the working area of the first dust collection component 201. Multiple sets of ventilation holes 103 are formed above the outer shell frame 1, and air filters are disposed inside these ventilation holes 103. Outside air enters the interior of the outer shell frame 1 through the ventilation holes 103 and the air filters, and flows downwards under the negative pressure created by the first dust collection component 201, causing dust on the surface of the glass substrate to fall, thereby achieving dust removal.
[0032] Specifically, the first vacuuming assembly 201 includes a negative pressure chamber disposed inside the outer casing frame 1. Within the negative pressure chamber, an intelligent vacuum pump assembly and a multi-stage filter that works in conjunction with the output of the intelligent vacuum pump assembly are housed. The multi-stage filter contains a primary filter, a HEPA filter element, and an activated carbon adsorption layer to ensure that the exhaust air meets environmental standards and reduces glass dust pollution. At the bottom of the outer casing frame 1, a first wide-width suction head is located, connected to the output of the multi-stage filter. This suction head features an internal micropore array, with each pore connected to an independent negative pressure channel for concentrated cleaning of glass dust. The width of the first wide-width suction head covers the entire width of the glass substrate, ensuring that glass dust can be fully absorbed.
[0033] The second vacuuming assembly 202 includes two sets of second wide-width suction heads, respectively fixedly mounted on the front and rear inner sides of the outer casing frame 1. These two sets of second wide-width suction heads have the same structure as the first wide-width suction head, but they are arranged vertically, their height adapted to the height of the glass substrate, and both are connected to the output end of the multi-stage filter. The function of the second wide-width suction heads is to perform preliminary cleaning of glass powder on the surface of the substrate glass, reducing the difficulty of subsequent cleaning. Simultaneously, they can create a negative pressure environment, preventing outside air from entering the working area of the first wide-width suction head and avoiding secondary pollution.
[0034] Furthermore, the intelligent vacuum pump unit can also integrate a displacement sensor, which is installed inside the housing frame 1. In this way, the displacement sensor can monitor the position and speed of the glass and automatically adjust the operating state of the vacuum pump to ensure dust adsorption capacity.
[0035] In this embodiment, a glass curtain wall 102 is also provided on the front side of the outer shell frame 1 so that the staff can observe the state of the glass substrate and thus determine the movement of the glass substrate.
[0036] In one specific embodiment, the static electricity elimination device 4 includes two sets of ion bars respectively fixedly disposed on the front and rear sides of the outer casing frame 1. These ion bars can output ion wind to the surface of the glass substrate to neutralize the static electricity on the surface of the glass substrate and simultaneously blow away glass powder on the surface of the glass substrate.
[0037] In one specific embodiment, the transfer device 6 includes a transfer trolley 601 fixedly mounted on the conveyor belt assembly 101. A clamp 602 for securing the glass substrate is fixedly mounted on the transfer trolley 601. The conveyor belt assembly 101 moves the transfer trolley 601, thereby moving the clamp 602 and the glass substrate fixed on the clamp 602. Furthermore, the inlet of the outer casing frame 1 is equipped with an automatic opening and closing door. When the transfer device 6 needs to move the glass substrate into the outer casing frame 1, the automatic opening and closing door automatically opens, sending the glass substrate into the outer casing frame 1. Once the glass substrate is fully inside, the automatic opening and closing door automatically closes to reduce the amount of external airflow entering the outer casing frame 1.
[0038] Working principle: The horizontally segmented glass substrate is fixed to the transfer trolley 601 by a hoisting mechanism. The clamps 602 on the transfer trolley 601 fix the glass substrate, and then the glass substrate is transported to the dust removal area by the conveyor belt assembly 101.
[0039] After entering the dust removal area, the two sets of second wide-width suction heads of the second dust collection component 202 perform preliminary cleaning on the surface of the glass substrate, reducing the difficulty of subsequent cleaning, while creating a negative pressure environment to prevent outside air from entering the subsequent dust collection area and avoid secondary pollution.
[0040] During transportation, two sets of ion bars output ion wind to the front and rear surfaces of the glass substrate, neutralizing static electricity on the substrate surface and blowing away some glass dust, creating favorable conditions for subsequent vacuuming. Subsequently, the intelligent vacuum pump unit generates a strong negative pressure inside the multi-stage filter, creating a negative pressure environment at the bottom of the outer frame 1. Outside air enters the outer frame 1 through the ventilation holes 103 and the air filter, flowing downwards under negative pressure and causing dust on the substrate glass surface to fall. The first wide-width suction head is designed with a micropore array, each small hole connected to an independent negative pressure channel, concentrating on cleaning glass dust. Its width covers the entire width of the glass substrate, ensuring that the glass dust is fully absorbed. The multi-stage filter filters the intake air, ensuring that the exhaust air meets environmental standards and reducing glass dust pollution.
[0041] During dust removal, to reduce glass swaying, the airflow control component 3 provides low-speed, directional buffer airflow from both sides of the substrate glass. A sensor 302 at the top inside the housing frame 1 monitors the glass swaying in real time and transmits the detection information to the PID controller. The PID controller identifies the swaying state of the substrate glass and adjusts the airflow output velocity of the side airflow buffer device 301 accordingly, reducing the sway of the substrate glass. Simultaneously, a displacement sensor 302 integrated into the intelligent vacuum pump unit monitors the position and speed of the glass, automatically adjusting the working state of the vacuum pump to ensure dust adsorption capacity. Operators can also observe the state of the glass substrate through the glass curtain wall 102 on the front side of the housing frame 1 to determine its movement.
[0042] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.
Claims
1. A device for dusting the surface of a glass substrate comprising a housing frame (1), characterized in that, The top of the outer frame (1) is fitted with a conveyor belt assembly (101) for moving the glass substrate. Below the conveyor belt assembly (101) are multiple sets of transfer devices (6) for hoisting and fixing the glass substrate. Inside the outer frame (1) are an electrostatic eliminator (4) for eliminating static electricity on the surface of the glass substrate and a dust collection system (2) for absorbing glass powder on the surface of the glass substrate and in the air. Inside the lower part of the outer frame (1) are an airflow control assembly (3) for reducing glass shaking.
2. The apparatus for dusting a surface of a glass substrate according to claim 1, wherein The airflow control component (3) includes two sets of side airflow buffer devices (301) fixedly installed on the front and rear side walls of the lower part of the outer shell frame (1). The output ends of the two sets of side airflow buffer devices (301) are arranged facing each other. The two sets of side airflow buffer devices (301) introduce low-speed, directional buffer airflow from both sides of the glass to help stabilize the glass position and reduce glass shaking. A sensor (302) for detecting the glass shaking state is provided at the top of the outer shell frame (1).
3. The apparatus for removing dust from a glass substrate surface according to claim 1 or 2, wherein The dust collection system (2) includes a first dust collection component (201) disposed at the bottom inside the outer shell frame (1) for forming a longitudinal airflow, and a second dust collection component (202) for preliminarily cleaning the air and the surface of the glass substrate before entering the working area of the first dust collection component (201).
4. The apparatus for dusting a surface of a glass substrate according to claim 3, wherein Multiple ventilation holes (103) are provided on the upper part of the outer shell frame (1). An air filter is provided inside the ventilation hole (103). Outside air enters the interior of the outer shell frame (1) through the ventilation hole (103) and the air filter.
5. The apparatus for dusting a surface of a glass substrate according to claim 4, wherein The first vacuuming assembly (201) includes a negative pressure chamber disposed inside the outer shell frame (1). The negative pressure chamber is equipped with an intelligent vacuum pump group and a multi-stage filter that cooperates with the output end of the intelligent vacuum pump group. The bottom of the outer shell frame (1) is provided with a first wide suction head that communicates with the output end of the multi-stage filter. The width of the first wide suction head covers the entire width of the glass substrate.
6. The apparatus for dusting a surface of a glass substrate according to claim 4, wherein The second vacuuming assembly (202) includes two sets of second wide suction heads that are fixedly installed on the front and rear sides of the outer frame (1). Both sets of second wide suction heads are arranged longitudinally, with their heights matching the height of the glass substrate, and are connected to the output end of the multi-stage filter.
7. The apparatus for removing dust from a glass substrate surface according to claim 1 or 2, wherein The front side of the outer frame (1) is provided with a glass curtain wall (102) to facilitate the observation of the glass substrate status by the staff.
8. The apparatus for dusting a surface of a glass substrate according to claim 3, wherein The static elimination device (4) includes two sets of ion bars that are fixedly installed on the front and rear sides of the outer shell frame (1).
9. The apparatus for removing dust from a surface of a glass substrate according to claim 1 or 2, wherein The transfer device (6) includes a transfer trolley (601) fixedly mounted on the conveyor belt assembly (101), and a clamp (602) for fixing the substrate glass is fixedly mounted on the transfer trolley (601).
10. The apparatus for removing dust from a surface of a glass substrate according to claim 1 or 2, wherein The outer shell frame (1) has an automatic opening and closing door at its input port.