Cleaning apparatus for the back of a glass substrate
By designing a combined cleaning device using conveyor belts and brushes, the problems of poor cleaning effect and improper wastewater treatment of glass substrates were solved, achieving a highly efficient and environmentally friendly cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN TIANBO TECH DEV CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
AI Technical Summary
Existing glass substrate cleaning equipment uses a single cleaning method, has poor cleaning effect, and improper wastewater treatment fails to improve cleaning quality and environmental friendliness.
A cleaning device was designed, comprising a conveyor guardrail, a conveyor belt, a motor, brushes, and a water spraying system. The device achieves deep cleaning of the back of the glass substrate through the combination of the linear reciprocating motion of the brushes and the water spraying. Wastewater is collected through holes in the conveyor belt for centralized treatment, thus avoiding pollution.
It achieves efficient and thorough cleaning of the back of the glass substrate, centralized wastewater treatment, good environmental performance, and meets the cleanliness and drying requirements of subsequent processes.
Smart Images

Figure CN224486863U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning the back side of glass substrates, and more particularly to a cleaning apparatus for the back side of glass substrates. Background Technology
[0002] In the fields of flat panel displays and semiconductor manufacturing, glass substrates, as an indispensable core material, play a crucial role. In flat panel displays, they are the key substrate for display panels; in semiconductor manufacturing, glass substrates are commonly used in packaging carriers and wafer carriers, and their surface quality has a decisive impact on the performance and reliability of chips.
[0003] Cleaning devices for the back of glass substrates typically consist of a frame, a conveyor mechanism, a spray mechanism, and a liquid storage tank. The frame provides support; the conveyor mechanism, including a motor, drive shaft, and conveyor belt, is used to transport the glass substrate; the spray mechanism has multiple nozzles distributed above or below the glass substrate's transport path.
[0004] Existing cleaning equipment has poor cleaning effect on glass substrates using a single cleaning method, and the wastewater from cleaning and brushing is not properly treated, which fails to improve the cleaning quality of the back of the glass substrate and the environmental friendliness of the cleaning process. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a cleaning device for the back of a glass substrate, aiming to improve the problems in the prior art where the cleaning equipment has poor cleaning effect due to its single cleaning method for glass substrates, and the inability to properly treat the cleaning wastewater, thus failing to improve the cleaning quality and environmental friendliness of the cleaning process for the back of the glass substrate.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a cleaning device for the back of a glass substrate, comprising a conveyor railing, wherein multiple conveyor shafts are rotatably connected inside the conveyor railing, a conveyor belt is sleeved on the outside of the conveyor shafts, and multiple holes are opened inside the conveyor belts; a motor is fixedly connected to the outside of the conveyor railing, and the output end of the motor is fixedly connected to the front end of one of the conveyor shafts; a support plate is fixedly connected to the outside of the conveyor railing, and a bracket is fixedly connected to the top of the support plate; a central shaft is rotatably connected to the top of the bracket; a brush is fixedly connected to the end of the central shaft away from the bracket; and the end of one of the conveyor shafts away from the motor is fixedly connected to the central shaft. A power belt is sleeved between the central shaft one and the central shaft two. A power box is fixedly connected to the top of the support plate. A motor two is fixedly connected inside the power box. A power shaft one is fixedly connected to the output end of the motor two. A half gear one is fixedly connected to the outside of the power shaft one. A power shaft two is rotatably connected inside the power box. A power belt two is sleeved on the outside of the power shaft two. A half gear two is fixedly connected to the outside of the power shaft two. A brush one is slidably connected to the outside of the transmission belt. A brush shaft one is fixedly connected to the outside of the brush one. A rack base is fixedly connected to the outside of the brush shaft one. A rack is fixedly connected to both sides of the rack base. A rack is meshed between the half gear one and the half gear two.
[0007] As a further description of the above technical solution: a water tank is fixedly connected to the bottom of the transmission guardrail, multiple support columns are fixedly connected to the bottom of the water tank, a base is fixedly connected to the bottom of the multiple support columns, a cleaning liquid tank is fixedly connected to one side of the top of the base, a second water pipe is connected through and to the top of the cleaning liquid tank, a second water nozzle is fixedly connected to one side of the top of the second water pipe, a clean water tank is fixedly connected to the other side of the top of the base, a first water pipe is connected through and to the top of the clean water tank, a first water nozzle is fixedly connected to one side of the top of the first water pipe, a sewage tank is fixedly connected to the top edge of the base, a drain pipe is connected through and to the top of the sewage tank, and the top of the drain pipe is connected through and to the inside of the water tank;
[0008] As a further description of the above technical solution: a drying box is fixedly connected to the top of the transmission guardrail, and a fan is fixedly connected to the top of the drying box;
[0009] As a further description of the above technical solution: the second brush abuts against the top of the conveyor belt;
[0010] As a further description of the above technical solution: multiple support columns are fixedly connected to the top of the base;
[0011] As a further description of the above technical solution: a cleaning box is fixedly connected to the top of the transmission guardrail on the side away from the drying box, the power box is fixedly connected to the outside of the cleaning box, the first brush shaft is slidably connected to the inside of the cleaning box, the second central shaft is rotatably connected to the inside of the cleaning box, and the second brush is rotatably connected to the inside of the cleaning box.
[0012] As a further description of the above technical solution: the water pipe runs through and is connected inside the support plate;
[0013] As a further description of the above technical solution: the power box is fixedly connected to the outside of the cleaning box.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, detergent from the detergent tank and clean water from the clean water tank are transported to spray nozzles one and two respectively through water pipe one and water pipe two. The mixture is evenly sprayed onto the glass substrate. Motor two drives power shaft one, which in turn drives power shaft two via power belt two. Power shaft one and power shaft two transmit power to half-gear one and half-gear two, causing the rack and rack base to reciprocate. This, in turn, causes the brush shaft to drive brush one, resulting in a linear reciprocating motion that deeply cleans the back of the glass substrate, powerfully removing stubborn impurities such as oil and stains.
[0016] 2. In this utility model, the wastewater generated from washing and scrubbing falls into the water tank below through the holes in the conveyor belt, and is collected in the wastewater tank through the drain pipe, thus avoiding pollution of the working environment. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the cleaning device for the back of a glass substrate proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the conveyor belt structure of the cleaning device for the back side of a glass substrate proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the rack base of the cleaning device for the back of a glass substrate proposed in this utility model;
[0020] Legend:
[0021] 1. Water pipe 1; 2. Drying box; 3. Fan; 4. Conveyor belt; 5. Conveyor guardrail; 6. Support column; 7. Water tank; 8. Wastewater tank; 9. Base; 10. Support plate; 11. Clean water tank; 12. Power box; 13. Support; 14. Power belt 1; 15. Central shaft 1; 16. Motor 1; 17. Central shaft 2; 18. Cleaning box; 19. Spray nozzle 1; 20. Detergent tank; 21. Water pipe 2; 22. Brush 1; 23. Brush shaft 1; 24. Rack base; 25. Power shaft 1; 26. Half gear 1; 27. Motor 2; 28. Rack; 29. Power shaft 2; 30. Half gear 2; 31. Power belt 2; 32. Spray nozzle 2; 33. Brush 2; 34. Conveyor shaft; 35. Drain pipe. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Reference Figure 1 , Figure 3 In one embodiment of this utility model, the glass substrate back cleaning device includes a transmission guardrail 5 that provides protection and support, with multiple transmission shafts 34 rotatably connected inside. A transmission belt 4 is fitted around the outside of each transmission shaft 34, carrying the glass substrate and having holes to allow wastewater to fall off. A motor 16 is fixed to the outside of the transmission guardrail 5, its output end connected to the transmission shaft 34, providing power for the transmission belt 4. A support plate 10 is fixed to the outside of the transmission guardrail 5, supporting a bracket 13 and a power box 12. A central shaft 17 is rotatably connected to the top of the bracket 13, with one end of the central shaft 17 connected to a brush 33. One end of one transmission shaft 34, away from the motor 16, is connected to a central shaft 15. The central shaft 15 and the central shaft 17 are connected via a power belt 14, which transmits power from the transmission shaft 34 to the central shaft 17, causing the brush 33 to rotate. Motor 27 inside power box 12 is the power source for the brush drive system. Its output end is connected to power shaft 25, which drives half gear 26 to rotate. Power shaft 29 rotates inside power box 12 and is connected to power shaft 25 via power belt 31. Half gear 30 is fixed to power shaft 29. Half gears 26 and 30 mesh with rack 28, which is fixed on both sides of rack base 24. Rack base 24 supports brush shaft 23, and brush 22 is fixed to the outside of brush shaft 23. When motor 27 operates, the meshing of the half gear and rack drives brush 22 to rotate and reciprocate linearly, thus brushing the back of the glass substrate.
[0024] Reference Figure 1 , Figure 3 A water tank 7 is fixedly connected to the bottom of the conveyor belt 5. Multiple support columns 6 are fixedly connected to the bottom of the water tank 7. A base 9 is fixedly connected to the bottom of each support column 6. A cleaning solution tank 20 is fixedly connected to one side of the top of the base 9. A second water pipe 21 is connected through and to the top of the cleaning solution tank 20. A second water nozzle 32 is fixedly connected to one side of the top of the second water pipe 21. A clean water tank 11 is fixedly connected to the other side of the top of the base 9. A first water pipe 1 is connected through and to the top of the clean water tank 11. A first water nozzle 19 is fixedly connected to one side of the top of the first water pipe 11. A wastewater tank 8 is fixedly connected to the top edge of the base 9. A drain pipe 35 is connected through and to the top of the wastewater tank 8. The drain pipe 35 is connected through and to the inside of the water tank 7. Wastewater generated during cleaning and scrubbing falls into the water tank 7 through holes in the conveyor belt 4 and is collected in the wastewater tank 8 via the drain pipe 35, preventing pollution of the working environment. After cleaning and scrubbing, the glass substrate enters the drying chamber 2 along with the conveyor belt 4. Inside the drying chamber 2, the fan 3 operates at high speed, generating a strong airflow that quickly dries any residual moisture on the back of the glass substrate, ensuring it is clean and dry to meet the requirements of subsequent processes. The components of this device work in close coordination to achieve efficient and thorough automated cleaning of the back of the glass substrate.
[0025] Working Principle: When motor 16 is powered on, it drives transmission shaft 34, which in turn drives transmission belt 4 to rotate cyclically, smoothly conveying the glass substrate into the cleaning device. Simultaneously, motor 16 also drives central shaft 15 to rotate, which in turn drives power belt 14, causing brush 33 to rotate. The transmission guardrail 5 and support column 6 ensure stable transport of the glass substrate on transmission belt 4. Cleaning solution in the cleaning solution tank 20 is delivered to spray nozzle 32 via water pipe 21, evenly spraying it onto the glass substrate for cleaning. Clean water in the clean water tank 11 is sprayed from spray nozzle 19 through water pipe 1, rinsing the glass substrate and effectively removing residual cleaning solution. Simultaneously, motor 27 is activated, and power shaft 25, via power belt 31, drives power shaft 29. Power is transmitted to half gears 26 and 30 via power shafts 25 and 29, causing rack 28 to reciprocate with rack base 24. This, in turn, drives brush shaft 23 to move brush 22 in a linear reciprocating motion, deeply cleaning the back of the glass substrate and powerfully removing stubborn impurities such as oil and stains. Wastewater generated during cleaning and brushing falls through holes in conveyor belt 4 into water tank 7 below, and is collected in wastewater tank 8 via drain pipe 35, preventing pollution of the working environment. After cleaning and brushing, the glass substrate enters drying chamber 2 along conveyor belt 4. Fan 3 inside drying chamber 2 operates at high speed, generating a strong airflow to quickly dry any remaining moisture on the back of the glass substrate, achieving a clean and dry state to meet the requirements of subsequent processes. The components of this device work closely together to achieve efficient and thorough automated cleaning of the back of the glass substrate.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cleaning device for the back side of a glass substrate, comprising a conveyor rail (5), characterized in that: The transmission guardrail (5) is internally connected to multiple transmission shafts (34). A transmission belt (4) is sleeved on the outside of the transmission shaft (34). Multiple holes are opened inside the transmission belt (4). A motor (16) is fixedly connected to the outside of the transmission guardrail (5). The output end of the motor (16) is fixedly connected to the front end of one of the transmission shafts (34). A support plate (10) is fixedly connected to the outside of the transmission guardrail (5). A bracket (13) is fixedly connected to the top of the support plate (10). A central shaft (17) is rotatably connected to the top of the bracket (13). A brush (33) is fixedly connected to the end of the central shaft (17) away from the bracket (13). A central shaft (15) is fixedly connected to the end of one of the transmission shafts (34) away from the motor (16). A power belt (14) is sleeved between the central shaft (15) and the central shaft (17). A power box (12) is fixedly connected to the top of the plate (10). A motor (27) is fixedly connected inside the power box (12). A power shaft (25) is fixedly connected to the output end of the motor (27). A half gear (26) is fixedly connected to the outside of the power shaft (25). A power shaft (29) is rotatably connected inside the power box (12). A power belt (31) is sleeved on the outside of the power shaft (29). A half gear (30) is fixedly connected to the outside of the power shaft (29). A brush (22) is slidably connected to the outside of the transmission belt (4). A brush shaft (23) is fixedly connected to the outside of the brush (22). A rack base (24) is fixedly connected to the outside of the brush shaft (23). A rack (28) is fixedly connected to both sides of the rack base (24). A rack (28) meshes between the half gear (26) and the half gear (30).
2. The cleaning apparatus for the back side of a glass substrate according to claim 1, characterized in that: The bottom of the transmission guardrail (5) is fixedly connected to a water tank (7), the bottom of the water tank (7) is fixedly connected to multiple support columns (6), the bottom of the multiple support columns (6) is fixedly connected to a base (9), the top of the base (9) is fixedly connected to a cleaning liquid tank (20), the top of the cleaning liquid tank (20) is connected to a second water pipe (21), the top of the second water pipe (21) is fixedly connected to a second water nozzle (32), the top of the other side of the base (9) is fixedly connected to a clean water tank (11), the top of the clean water tank (11) is connected to a first water pipe (1), the top of the first water pipe (1) is fixedly connected to a first water nozzle (19), the top edge of the base (9) is fixedly connected to a sewage tank (8), the top of the sewage tank (8) is connected to a drain pipe (35), the top of the drain pipe (35) is connected to the inside of the water tank (7).
3. The cleaning apparatus for the back side of a glass substrate according to claim 1, characterized in that: A drying box (2) is fixedly connected to the top of the transmission guardrail (5), and a fan (3) is fixedly connected to the top of the drying box (2).
4. The cleaning apparatus for the back side of a glass substrate according to claim 1, characterized in that: The second brush (33) abuts against the top of the conveyor belt (4).
5. The cleaning apparatus for the back side of a glass substrate according to claim 2, characterized in that: Multiple of the support columns (6) are fixedly connected to the top of the base (9).
6. The cleaning apparatus for the back side of a glass substrate according to claim 1, characterized in that: A cleaning box (18) is fixedly connected to the top of the transmission guardrail (5) on the side away from the drying box (2). The first brush shaft (23) is slidably connected inside the cleaning box (18). The second central shaft (17) is rotatably connected inside the cleaning box (18). The second brush (33) is rotatably connected inside the cleaning box (18).
7. The cleaning apparatus for the back side of a glass substrate according to claim 2, characterized in that: The water pipe (1) runs through and is connected inside the support plate (10).
8. The cleaning apparatus for the back side of a glass substrate according to claim 1, characterized in that: The power box (12) is fixedly connected to the outside of the cleaning box (18).