Hot air supply mechanism for glass substrate drying equipment

By designing a centrifugal filtration and heating structure with a cylindrical filter element in the glass substrate drying equipment, the problem of dust entrainment in the hot air delivery mechanism was solved, achieving efficient filtration and low-energy drying effect.

CN223869769UActive Publication Date: 2026-02-03FUJIAN XIENKAI ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520498749.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-02-03
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

The hot air delivery mechanism of existing glass substrate drying equipment is prone to trapping dust and other stains, causing the cleaned glass substrates to re-adhere to stains. In addition, the filter installation causes poor air intake, requiring an increase in blower power to solve the problem, resulting in high energy consumption.

Method used

A hot air delivery mechanism including a blower, air distribution duct, connecting pipe and cylindrical filter element was designed. The dust is filtered by the centrifugal force of the cylindrical filter element and heated in the air outlet duct before being blown into the drying chamber, ensuring smooth airflow and reducing the probability of dust entering the drying chamber.

Benefits of technology

Without affecting the smooth flow of hot air, it significantly reduces the probability of dust entering the drying chamber, improves filtration efficiency, and reduces energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hot air supply mechanism for glass substrate drying equipment, which comprises an air blower, an air inlet end of the air blower is connected to a corresponding air distribution pipe, one end of the air distribution pipe is closed, the other end of the air distribution pipe is detachably provided with a corresponding end cover plate, and a connecting pipe is rotatably arranged in the air distribution pipe in a sealing manner; a cylindrical filter element facing the end cover plate is fixedly connected to the connecting pipe, and an impeller of the air blower and the connecting pipe are in transmission connection to the output shaft ends of corresponding driving motors respectively. The air distribution pipes are arranged on the outer side of the drying chamber, the air distribution pipes are connected to the upper sides and the lower sides of the air distribution pipes through corresponding guide pipes respectively, a plurality of air outlet pipes communicated with the drying chamber are connected to the air distribution pipes at intervals, and corresponding electric heaters are fixedly installed at the air outlet ends of the air outlet pipes respectively. On the basis that the hot air circulation smoothness is not affected, the probability that dust enters the drying chamber is effectively and greatly reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of LCD glass substrate drying equipment, specifically to a hot air delivery mechanism for glass substrate drying equipment, which is mainly used to deliver hot air into the corresponding drying chamber in a pollution-free manner. Background Technology

[0002] In the fabrication process of liquid crystal display devices, the corresponding LCD glass substrate first needs to be cleaned and dried. Existing drying equipment for LCD glass substrate processing mainly includes a roller conveyor and a drying chamber set on the roller conveyor. A hot air supply mechanism delivers heated air into the drying chamber to dry the LCD glass substrate that has passed through the drying chamber, while the hot air containing moisture generated during drying is directly discharged.

[0003] Most existing glass substrate drying equipment uses a hot air delivery mechanism that includes a blower. The blower delivers airflow into the drying chamber, where a heater located at the blower's outlet heats the airflow, thus delivering hot air into the drying chamber to dry the LCD glass substrate. However, this hot air delivery mechanism easily traps dust and other contaminants during the continuous delivery of hot air into the drying chamber, causing the cleaned LCD glass substrate to re-adhere to these contaminants. To address this issue, some manufacturers have begun installing filters at the blower's outlet. However, the resulting obstructed airflow from the filters severely affects hot air delivery, often necessitating an increase in blower power, leading to high energy consumption.

[0004] Therefore, the research objective of this utility model is to design a hot air delivery mechanism for a glass substrate drying equipment that effectively and significantly reduces the probability of dust entering the drying chamber, without affecting the smoothness of hot air circulation. Utility Model Content

[0005] In view of the technical problems existing in the prior art, the present invention provides a hot air supply mechanism for a glass substrate drying equipment, which can effectively solve the technical problems existing in the prior art.

[0006] The technical solution of this utility model is:

[0007] A hot air supply mechanism for a glass substrate drying equipment includes:

[0008] A blower is fixedly installed on the outside of the corresponding drying chamber. The air inlet of the blower is connected to a corresponding air distribution pipe. One end of the air distribution pipe is closed, and the other end is detachably fitted with a corresponding end cover. A corresponding connecting pipe is rotatably installed inside the air distribution pipe. A cylindrical filter element facing the end cover is fixedly connected to the connecting pipe. The air inlet of the blower is connected to the side of the connecting pipe that is not connected to the cylindrical filter element. The impeller of the blower and the connecting pipe are respectively driven to the output shaft end of the corresponding drive motor.

[0009] A set of air distribution ducts is set on the outside of the drying chamber. The air distribution ducts are connected to the upper and lower sides of the air distribution duct through corresponding conduits. Several air outlet ducts connecting to the drying chamber are connected to the air distribution ducts at intervals. The air outlet ends of the air outlet ducts are respectively fixedly installed with corresponding electric heaters.

[0010] The air outlet end of the air outlet pipe is connected to a corresponding air distribution container. The air inlet end of the air distribution container is connected to the air outlet end of the air outlet pipe. The air outlet end of the air distribution container is elongated. The electric heater is fixedly installed inside the corresponding air distribution container.

[0011] The connecting pipe is installed into the air distribution pipe through a waterproof bearing seal.

[0012] The cylindrical filter element includes a cylindrical frame and multiple filter plates fixedly installed on the cylindrical frame. The cylindrical frame is connected to the connecting pipe by a flange locking method.

[0013] The cylindrical frame includes a connecting flange that connects to the connecting pipe and a bottom plate that is spaced apart from the connecting flange. Multiple sets of corresponding first rigid support plates and second rigid support plates are arranged alternately between the connecting flange and the bottom plate. The filter plate is fixed between two adjacent first rigid support plates and second rigid support plates.

[0014] The first rigid support plate is in the shape of an inverted V and is disposed on the outside of the second rigid support plate, which is in the shape of an inclined panel.

[0015] Advantages of this utility model:

[0016] 1) The blower of this utility model is connected to a corresponding air distribution pipe. One end of the air distribution pipe is closed, and the other end is detachably fitted with an end cover. A connecting pipe is rotatably installed inside the air distribution pipe, and a cylindrical filter element facing the end cover is fixed to the connecting pipe. Then, the air inlet end of the blower is connected to the side of the connecting pipe that is not connected to the cylindrical filter element. Finally, the impeller of the blower and the connecting pipe are respectively connected to the output shaft end of the corresponding drive motor. In this way, the cylindrical filter element can be rotated synchronously during the operation of the blower, so that the cylindrical filter element has a significant centrifugal force. This ensures that the air volume generated by the blower can be smoothly discharged through the cylindrical filter element. The filtered air volume is then blown into the outlet pipe through the air distribution pipe and the air distribution pipe. After being heated in the outlet pipe, it is blown into the drying chamber. This effectively and significantly reduces the probability of dust entering the drying chamber without affecting the smooth flow of hot air.

[0017] 2) The cylindrical filter element of this utility model includes a cylindrical frame and multiple filter plates fixedly installed on the cylindrical frame. The cylindrical frame includes a connecting flange that connects to the connecting pipe and a bottom plate spaced apart from the connecting flange. Multiple sets of corresponding first rigid support plates and second rigid support plates are staggered between the connecting flange and the bottom plate. The filter plates are then fixed between two adjacent first rigid support plates and second rigid support plates. This causes the filter plates to be tilted at a certain angle, giving the cylindrical filter element a larger filtration area during rotation and a more thorough centrifugal effect during rotation.

[0018] 3) The first rigid support plate of this utility model is arranged in an inverted V shape and is located outside the second rigid support plate, which is arranged in an inclined plate shape. Thus, during the rotation of the cylindrical filter element, centrifugal force effectively concentrates the dust adhering to the filter plate into the inverted V-shaped first rigid support plate, reducing dust clogging of the filter plate and ensuring the filtration efficiency of the filter plate, thereby further ensuring the practical effect of this utility model. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the assembly structure of the connecting tube and the cylindrical filter element.

[0021] Figure 3 This is a schematic diagram of the structure of a cylindrical filter element.

[0022] Figure 4 This is a diagram showing the usage state of this utility model.

[0023] Figure 5 for Figure 4A schematic diagram of the structure after removing the drying chamber.

[0024] In the attached diagram: 1. Blower; 2. Drying chamber; 3. Air distribution duct; 4. End cover plate; 5. Connecting pipe; 6. Cylindrical filter element; 601. Cylindrical frame; 6011. Connecting flange; 6012. Bottom end plate; 6013. First rigid support plate; 6014. Second rigid support plate; 602. Filter plate; 7. Drive motor; 8. Air distribution duct; 9. Conduit; 10. Air outlet duct; 11. Electric heater; 12. Air distribution container; 13. Waterproof bearing. Detailed Implementation

[0025] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0026] refer to Figure 1-5 A hot air supply mechanism for a glass substrate drying equipment, comprising:

[0027] A blower 1 is fixedly installed on the outside of the corresponding drying chamber 2. The air inlet of the blower 1 is connected to the corresponding air distribution pipe 3. One end of the air distribution pipe 3 is closed and the other end is detachably installed with a corresponding end cover plate 4. A corresponding connecting pipe 5 is rotatably installed inside the air distribution pipe 3. A cylindrical filter element 6 facing the end cover plate 4 is fixedly connected to the connecting pipe 5. The air inlet of the blower 1 is connected to the side of the connecting pipe 5 that is not connected to the cylindrical filter element 6. The impeller of the blower 1 and the connecting pipe 5 are respectively driven to the output shaft end of the corresponding drive motor 7.

[0028] A set of air distribution ducts 8 are set on the outside of the drying chamber 2. The air distribution ducts 8 are connected to the upper and lower sides of the air distribution duct 3 through corresponding conduits 9. Several air outlet ducts 10 connecting the drying chamber 2 are connected to the air distribution ducts 8 at intervals. The air outlet ends of the air outlet ducts 10 are respectively fixedly installed with corresponding electric heaters 11.

[0029] The air outlet end of the air outlet pipe 10 is connected to a corresponding air distribution container 12. The air inlet end of the air distribution container 12 is connected to the air outlet end of the air outlet pipe 10. The air outlet end of the air distribution container 12 is elongated. The electric heater 11 is fixedly installed in the corresponding air distribution container 12.

[0030] In this invention, a blower 1 is connected to a corresponding air distribution pipe 3. One end of the air distribution pipe 3 is closed, and the other end is detachably fitted with an end cover plate 4. A connecting pipe 5 is rotatably installed inside the air distribution pipe 3, and a cylindrical filter element 6 facing the end cover plate 4 is fixedly connected to the connecting pipe 5. The air inlet end of the blower 1 is then connected to the side of the connecting pipe 5 that is not connected to the cylindrical filter element 6. Finally, the impeller of the blower 1 and the connecting pipe 5 are respectively connected to the output shaft end of the corresponding drive motor 7. In this way, during the operation of the blower 1, the cylindrical filter element 6 is driven to rotate synchronously, giving the cylindrical filter element 6 a significant centrifugal force. This ensures that the air volume generated by the blower 1 can be smoothly discharged through the cylindrical filter element 6, and the filtered air volume is then blown into the outlet pipe 10 through the air distribution pipe 3 and the air distribution pipe 8. After being heated in the outlet pipe 10, the air is blown into the drying chamber 1, thereby effectively and significantly reducing the probability of dust entering the drying chamber without affecting the smooth flow of hot air.

[0031] The connecting pipe 5 is installed into the air distribution pipe 3 in a sealed and rotatable manner through a waterproof bearing 13 to ensure the rotational sealing of the connecting pipe, thereby ensuring that most of the airflow can be effectively filtered before being output.

[0032] The cylindrical filter element 6 includes a cylindrical frame 601 and a plurality of filter plates 602 fixedly installed on the cylindrical frame 601. The cylindrical frame 601 is connected to the connecting pipe 5 by a flange locking method.

[0033] The cylindrical frame 601 includes a connecting flange 6011 that docks with the connecting pipe 5, and a bottom plate 6012 that is spaced apart from the connecting flange 6011. Multiple sets of corresponding first rigid support plates 6013 and second rigid support plates 6014 are arranged alternately between the connecting flange 6011 and the bottom plate 6012. The filter plate 602 is fixed between two adjacent first rigid support plates 6013 and second rigid support plates 6014.

[0034] By interleaving first rigid support plates 6013 and second rigid support plates 6014 arranged at intervals, the filter plates 602 are respectively fixed between two adjacent first rigid support plates 6013 and second rigid support plates 6014. This causes the filter plates 602 to be tilted at a certain angle, giving the cylindrical filter element 6 a larger filtration area during rotation and a more thorough centrifugal effect during rotation.

[0035] The first rigid support plate 6013 is arranged in an inverted V shape and is disposed on the outside of the second rigid support plate 6014, which is arranged in an inclined plate shape.

[0036] By using the inverted V-shaped arrangement of the first rigid support plate 6013 and the inclined plate-shaped arrangement of the second rigid support plate 6014, the cylindrical filter element 6 can effectively concentrate the dust attached to the filter plate 602 into the inverted V-shaped first rigid support plate 6013 through centrifugal force during rotation, thereby reducing the amount of dust clogging the filter plate 602 and ensuring the filtration efficiency of the filter plate 602, thus further ensuring the practical effect of this utility model.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hot air supply mechanism for a glass substrate drying equipment, characterized in that, include: A blower (1) is fixedly installed on the outside of the corresponding drying chamber (2). The air inlet of the blower (1) is connected to the corresponding air distribution pipe (3). One end of the air distribution pipe (3) is closed and the other end is detachably installed with a corresponding end cover plate (4). A corresponding connecting pipe (5) is rotatably installed inside the air distribution pipe (3). A cylindrical filter element (6) facing the end cover plate (4) is fixedly connected to the connecting pipe (5). The air inlet of the blower (1) is connected to the side of the connecting pipe (5) that is not connected to the cylindrical filter element (6). The impeller of the blower (1) and the connecting pipe (5) are respectively driven to the output shaft end of the corresponding drive motor (7). A set of air distribution pipes (8) are set on the outside of the drying chamber (2). The air distribution pipes (8) are connected to the upper and lower sides of the air distribution pipe (3) through corresponding conduits (9). Several air outlet pipes (10) that connect to the drying chamber (2) are connected on the air distribution pipes (8) at intervals. The air outlet ends of the air outlet pipes (10) are respectively fixedly installed with corresponding electric heaters (11).

2. The hot air supply mechanism for a glass substrate drying equipment according to claim 1, characterized in that, The air outlet end of the air outlet pipe (10) is connected to a corresponding air distribution container (12). The air inlet end of the air distribution container (12) is connected to the air outlet end of the air outlet pipe (10). The air outlet end of the air distribution container (12) is arranged in a long strip shape. The electric heater (11) is fixedly installed in the corresponding air distribution container (12).

3. The hot air supply mechanism for a glass substrate drying equipment according to claim 1, characterized in that, The connecting pipe (5) is installed into the air distribution pipe (3) through a waterproof bearing (13) for sealing and rotation.

4. The hot air supply mechanism for a glass substrate drying equipment according to claim 1, characterized in that, The cylindrical filter element (6) includes a cylindrical frame (601) and a plurality of filter plates (602) fixedly installed on the cylindrical frame (601). The cylindrical frame (601) is connected to the connecting pipe (5) by a flange locking method.

5. The hot air supply mechanism for a glass substrate drying equipment according to claim 4, characterized in that, The cylindrical frame (601) includes a connecting flange (6011) that forms a joint with the connecting pipe (5) and a bottom plate (6012) that is spaced apart from the connecting flange (6011). Multiple sets of corresponding first rigid support plates (6013) and second rigid support plates (6014) are arranged alternately between the connecting flange (6011) and the bottom plate (6012). The filter plate (602) is fixed between two adjacent first rigid support plates (6013) and second rigid support plates (6014).

6. The hot air supply mechanism for a glass substrate drying equipment according to claim 5, characterized in that, The first rigid support plate (6013) is arranged in an inverted V shape and is located on the outside of the second rigid support plate (6014), which is arranged in an inclined plate shape.