Glass sheet cooling and conveying device

Abstract

The utility model relates to glass production technical field, more particularly, relate to a kind of glass plate cooling and conveying device, including rack, conveying roller group and auxiliary roller group, wherein, conveying roller group is provided with driving roller, and driving roller and rack are rotatably connected;Auxiliary roller group sets positive pressure roller;Positive pressure roller is hollow structure;The surface of positive pressure roller is provided with gas guide hole, and gas guide hole and gas source mechanism are communicated;All driving roller and positive pressure roller jointly form the conveying plane for conveying glass plate material.It is designed through the structure, air provided by gas source mechanism is sprayed upward from gas guide hole, forms air film, so that the physical contact area and contact pressure of glass plate material with driving roller and positive pressure roller surface during conveying process are greatly reduced, the wear problem of roller surface caused by sliding friction in traditional roller conveying is reduced, so that it can be ensured that conveying plane can long-term maintain initial flatness precision.

Description

Technical Field

[0001] This utility model relates to the field of glass production technology, and more specifically, to a glass sheet cooling and conveying device. Background Technology

[0002] Annealing and cooling is an indispensable step in glass manufacturing. Its core purpose is to safely and controllably eliminate or significantly reduce harmful internal stresses generated during the forming and rapid cooling of glass sheets, enabling them to reach the required stable state with sufficient strength and safety to meet subsequent processing or usage requirements. Currently, glass sheets are typically annealed and cooled using roller conveyor furnaces. The glass sheets are horizontally conveyed along rollers, sequentially passing through heating, holding, slow cooling, and rapid cooling zones. However, with prolonged use, the roller surfaces in existing roller conveyor furnaces gradually wear down, causing the glass sheets to become unstable and resulting in localized stress, stress concentration, or surface quality issues. Therefore, it is necessary to develop a cooling and conveying device capable of providing stable, long-term transport of glass sheets. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a glass sheet cooling and conveying device that can smoothly convey glass sheets, has a long service life, and reduces the frequency of replacement and maintenance.

[0004] A glass sheet cooling and conveying device according to an embodiment of the present invention includes:

[0005] frame;

[0006] A conveyor roller assembly, wherein the conveyor roller assembly is provided with at least one drive roller, and the drive roller is rotatably connected to the frame;

[0007] An auxiliary roller assembly is provided, which includes at least one positive pressure roller. The positive pressure roller has a hollow structure and its surface is provided with several air guide holes, which are connected to an air source mechanism. All the drive rollers and the positive pressure rollers together form a conveying plane for conveying glass sheets.

[0008] According to some embodiments of this utility model, the positive pressure roller includes a central shaft, an outer bushing, and a bearing. The central shaft is provided with a pressure cavity. A guide groove is provided on the outer peripheral wall of the central shaft along the axial direction, and the opening of the guide groove faces upward. A first exhaust hole is provided in the guide groove, and the two ends of the first exhaust hole are respectively connected to the guide groove and the pressure cavity. A plurality of second exhaust holes are provided on the outer peripheral wall of the outer bushing along the circumferential direction. The outer bushing is sleeved on the central shaft, and the two ends of the outer bushing are rotatably connected to the two ends of the central shaft through the bearing. When the outer bushing rotates, the guide groove can sequentially connect to the second exhaust holes.

[0009] According to some embodiments of the present invention, the outer peripheral wall of the outer bushing is provided with a silicone sleeve, and the silicone sleeve is provided with a third exhaust hole that communicates with the second exhaust hole.

[0010] According to some embodiments of this utility model, the third exhaust hole has a conical structure.

[0011] According to some embodiments of the present invention, sealing rings are respectively provided at both ends of the central shaft, and the sealing rings can seal both ends of the guide groove.

[0012] According to some embodiments of the present invention, the air source mechanism includes an air compressor, a main pipeline, a tee connector and a right-angle connector. The air compressor is connected to the main pipeline. Multiple tee connectors are provided and are sequentially arranged on the main pipeline. One end of the right-angle connector is connected to the tee connector, and the other end of the right-angle connector is connected to the central shaft.

[0013] According to some embodiments of this utility model, a plug is provided at the end of the central shaft away from the right-angle connector.

[0014] According to some embodiments of the present invention, the conveying roller assembly includes a drive motor, a first synchronous pulley, a second synchronous pulley, and a synchronous belt; the output end of the drive motor is drivenly connected to the first synchronous pulley, the second synchronous pulley is drivenly connected to one end of the drive roller, and the first synchronous pulley and the second synchronous pulley are drivenly connected through the synchronous belt.

[0015] A glass plate cooling and conveying device according to an embodiment of the present utility model has at least the following beneficial effects:

[0016] According to the present invention, the glass sheet cooling and conveying device includes a frame, a conveying roller group, and an auxiliary roller group. The conveying roller group is provided with at least one driving roller, which is rotatably connected to the frame. The auxiliary roller group is provided with at least one positive pressure roller. The positive pressure roller has a hollow structure. The surface of the positive pressure roller is provided with a plurality of air guide holes, which are connected to an air source mechanism. All the driving rollers and the positive pressure rollers together form a conveying plane for conveying the glass sheet. Through the design of this structure, air or inert gas supplied by the air source mechanism is continuously introduced into the hollow cavity of the positive pressure roller and ejected upward from the air guide holes on its surface, directly acting on the bottom of the glass sheet. The continuously ejected gas forms an air film between the bottom surface of the glass sheet and the surface of the roller. The formation of the air film significantly reduces the physical contact area and contact pressure between the glass sheet and the surfaces of the drive roller and the positive pressure roller during the conveying process, reducing the roller surface wear problem caused by sliding friction in traditional roller conveying, thereby ensuring that the conveying plane can maintain its initial flatness accuracy for a long time. At the same time, the evenly distributed air film provides partial bottom support for the glass sheet, avoiding local point or line stress on the glass sheet caused by minor unevenness or local wear of the roller, reducing the risk of additional stress concentration that may be caused during the conveying process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of a planar structure of the present invention;

[0019] Figure 3 For the present utility model Figure 2 A magnified schematic diagram of the local structure at point A;

[0020] Figure 4 This is a schematic diagram of the structure of the auxiliary roller assembly of this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the auxiliary roller assembly of this utility model;

[0022] Figure 6 For the present utility model Figure 5 A magnified schematic diagram of the local structure at point B;

[0023] Figure 7 This is a partial structural schematic diagram of the present invention.

[0024] In the picture:

[0025] 100-rack;

[0026] 200 - Conveyor roller assembly, 210 - Drive roller, 220 - Drive motor, 230 - First synchronous pulley, 240 - Second synchronous pulley, 250 - Synchronous belt;

[0027] 300-Auxiliary roller assembly, 301-Positive pressure roller, 302-Air guide hole, 310-Central shaft, 311-Pressure chamber, 312-Guide groove, 313-First exhaust hole, 320-Outer bushing, 321-Second exhaust hole, 330-Bearing, 340-Silicone sleeve, 341-Third exhaust hole, 350-Sealing ring, 360-Air source mechanism, 361-Main pipe, 362-T-joint, 363-Right angle joint, 370-Plug;

[0028] 400 - Glass sheet. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figures 1 to 7As shown, this utility model discloses a glass sheet cooling and conveying device, which includes a frame 100, a conveying roller group 200, and an auxiliary roller group 300. The conveying roller group 200 is provided with at least one drive roller 210, which is rotatably connected to the frame 100. The auxiliary roller group 300 is provided with at least one positive pressure roller 301. The positive pressure roller 301 has a hollow structure and its surface is provided with several air guide holes 302, which are connected to an air source mechanism 360. All the drive rollers 210 and the positive pressure roller 301 together form a conveying plane for conveying the glass sheet 400. Specifically, in this embodiment, the frame 100 serves as an integral support structure, supporting the conveyor roller group 200 and the auxiliary roller group 300. The conveyor roller group 200 includes at least one drive roller 210, which is rotatably connected to the frame 100 and provides conveying power. The auxiliary roller group 300 includes at least one positive pressure roller 301, which is designed as a hollow structure with a plurality of air guide holes 302 distributed on its surface. These air guide holes 302 are connected to an external air source mechanism 360 through pipelines. The upper surfaces of all the drive rollers 210 and all the positive pressure rollers 301 together form a flat conveying plane for supporting and conveying the glass sheet 400. When the device is working, the air or inert gas provided by the air source mechanism 360 is continuously introduced into the hollow cavity of the positive pressure roller 301 and flows out from the air guide holes 302 on its surface to the air source. The gas is sprayed upwards and acts directly on the bottom of the glass plate 400. This not only helps to cool the glass but also removes some of the dust residue on the glass surface. The continuously sprayed gas forms an air film between the bottom surface of the glass plate 400 and the roller surface. The formation of the air film significantly reduces the physical contact area and contact pressure between the glass plate 400 and the surfaces of the drive roller 210 and the positive pressure roller 301 during the conveying process. This reduces the roller surface wear problem caused by sliding friction in traditional roller conveying, thereby ensuring that the conveying plane can maintain its initial flatness accuracy for a long time. At the same time, the evenly distributed air film provides partial bottom support for the glass plate 400, avoiding local point or line stress on the glass plate 400 caused by minor unevenness or local wear of the roller, and reducing the risk of additional stress concentration that may occur during the conveying process.

[0034] In some embodiments of this utility model, the positive pressure roller 301 includes a central shaft 310, an outer bushing 320, and a bearing 330. The central shaft 310 is provided with a pressure cavity 311. A guide groove 312 is provided axially upward on the outer peripheral wall of the central shaft 310, with the opening of the guide groove 312 facing upward. A first exhaust hole 313 is provided in the guide groove 312, and the two ends of the first exhaust hole 313 are respectively connected to the guide groove 312 and the pressure cavity 311. A plurality of second exhaust holes 321 are provided circumferentially on the outer peripheral wall of the outer bushing 320. The outer bushing 320 is sleeved on the central shaft 310, and the two ends of the outer bushing 320 are rotatably connected to the two ends of the central shaft 310 through the bearing 330. When the outer bushing 320 rotates, the guide groove 312 can sequentially connect to the second exhaust holes 321. Specifically, in this embodiment, the central shaft 310, as a fixed component, is responsible for guiding and distributing gas, while the pressure chamber 311 and the guide groove 312 form a stable gas distribution channel. The outer bushing 320, as a rotating component, is only responsible for supporting the glass plate 400 and opening the second exhaust hole 321. The rotational movement of the outer bushing 320 is supported by the bearing 330, and there is no sliding friction between it and the central shaft 310. This dynamic-static separation structural design ensures that the gas delivery channel is not affected by rotational movement, guaranteeing the reliability and stability of the gas supply. The guide groove 312 is designed to be axially continuous, ensuring that the gas can be evenly distributed along the entire length of the roller, so that the pressure of the gas ejected through all the second exhaust holes 321 is consistent with the pressure of the gas. The flow rates are basically consistent; during the rotation of the outer bushing 320, all the second exhaust holes 321 on its surface can sequentially connect with the fixed guide groove 312 and obtain gas, thereby generating a uniform and continuous gas film on the entire circumferential surface and axial length of the outer bushing 320; as a vulnerable part that directly contacts and moves relative to the glass plate 400, the outer bushing 320 can be replaced independently of the central shaft 310, which greatly reduces maintenance costs and downtime; the central shaft 310 is fixed, and the guide groove 312 and the first exhaust hole 313 on it are not easily worn and have a long service life; the bearing 330 only bears the rotational load of the outer bushing 320, avoiding the additional load caused by gas pressure, making the operation more reliable.

[0035] In some embodiments of this utility model, a silicone sleeve 340 is fitted on the outer peripheral wall of the outer bushing 320, and a third exhaust hole 341 communicating with the second exhaust hole 321 is provided on the silicone sleeve 340. Specifically, in this embodiment, gas enters the guide groove 312 from the pressure chamber 311 of the central shaft 310 through the first exhaust hole 313; when a certain second exhaust hole 321 on the rotating outer bushing 320 moves to a position coinciding with the guide groove 312, the gas escapes upward through the second exhaust hole 321; since the silicone sleeve 340 is tightly attached to the outer surface of the outer bushing 320, the third exhaust hole 341 on it always remains in communication with the corresponding second exhaust hole 321, so the gas will continuously flow through the second exhaust hole 321 and the third exhaust hole 341, and finally spray from the outer surface of the silicone sleeve 340 onto the bottom of the glass plate 400 to participate in the formation of a supporting gas film. Silicone material possesses excellent elasticity and flexibility. When the glass plate 400 comes into contact with the roller surface due to slight deformation or vibration, the silicone sleeve 340 provides cushioning protection, greatly reducing the risk of the glass surface being scratched or indented by the hard metal roller surface. As a consumable part, the silicone sleeve 340 only needs to be replaced after wear, without replacing the entire outer bushing 320, significantly reducing maintenance costs and shortening downtime. The silicone sleeve 340 can isolate the glass plate 400 from direct contact with the metal surface of the outer bushing 320, avoiding oxidation or corrosion of the metal surface that may be caused by high temperature or chemical factors, thus extending the service life of the outer bushing 320. The third exhaust hole 341 is easier to process on the silicone sleeve 340, allowing for optimized aperture and distribution density to precisely control the gas flow field and improve the uniformity and stability of the gas film. The elastic properties of the silicone sleeve 340 help compensate for minor deformations or assembly tolerances that may occur in the outer bushing 320 or the central shaft 310 during long-term use, ensuring that the gas film formation area is always in close contact with the bottom surface of the glass plate, maintaining a stable non-contact conveying state.

[0036] In some embodiments of this invention, the third exhaust port 341 has a conical structure. Specifically, in this embodiment, the acceleration effect generated when the gas passes through the conical channel significantly increases the effective area, enhances the lifting capacity of the gas film on the glass plate 400, and helps maintain a more precise non-contact gap; improves the stability of the conveying process; and makes the airflow more concentrated in the area directly below the glass plate 400, thereby improving gas utilization. In this embodiment, the first exhaust port 313, the second exhaust port 321, and the third exhaust port 341 together form the air guide port 302.

[0037] In some embodiments of this invention, sealing rings 350 are respectively provided at both ends of the central shaft 310, and the sealing rings 350 can seal both ends of the guide groove 312. Specifically, in this embodiment, by providing sealing rings 350 at both ends of the central shaft 310, the sealing effect of the guide groove 312 can be improved, and the gas passage can be controlled to move towards the designated path. This reduces the loss of gas pressure.

[0038] In some embodiments of this utility model, the air source mechanism 360 includes an air compressor, a main pipeline 361, a tee connector 362, and a right-angle connector 363. The air compressor is connected to the main pipeline 361. Multiple tee connectors 362 are arranged sequentially on the main pipeline 361. One end of the right-angle connector 363 is connected to the tee connector 362, and the other end of the right-angle connector 363 is connected to the central shaft 310. Specifically, in this embodiment, the main pipeline 361 serves as the main air supply channel, providing a unified pressure source for all branches and ensuring that the air supply pressure benchmark of each positive pressure roller 301 is consistent. Multiple tee connectors 362 are arranged in series at equal intervals on the main pipeline 361, so that each branch has similar fluid resistance characteristics, which is beneficial for the uniform distribution of gas to each independent positive pressure roller 301 connected to the right-angle connector 363, ensuring the uniformity of the gas film generated by all rollers.

[0039] In some embodiments of this utility model, a plug 370 is provided at the end of the central shaft 310 away from the right-angle joint 363. Specifically, in this embodiment, under normal conditions, the plug 370 closes one end of the central shaft 310; under maintenance conditions, the plug 370 is opened, and air is then vented into the central shaft 310 to clean debris and dust inside the central shaft 310.

[0040] In some embodiments of this utility model, the conveying roller group 200 includes a drive motor 220, a first synchronous pulley 230, a second synchronous pulley 240, and a synchronous belt 250. The output end of the drive motor 220 is connected to the first synchronous pulley 230, the second synchronous pulley 240 is connected to one end of the drive roller 210, and the first synchronous pulley 230 and the second synchronous pulley 240 are connected by the synchronous belt 250. Specifically, in this embodiment, the first synchronous pulley 230, the second synchronous pulley 240, and the synchronous belt 250 can control the rotation of the drive roller 210, thereby providing power for the movement of the glass plate 400. In this embodiment, the transmission method of synchronous pulleys and synchronous belts can further reduce the overload of the drive motor 220.

[0041] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A glass sheet cooling and conveying apparatus, characterized by, include: Rack (100); A conveyor roller assembly (200) is provided, wherein the conveyor roller assembly (200) is provided with at least one drive roller (210), and the drive roller (210) is rotatably connected to the frame (100); An auxiliary roller group (300) is provided with at least one positive pressure roller (301); the positive pressure roller (301) has a hollow structure; the surface of the positive pressure roller (301) is provided with a plurality of air guide holes (302), and the air guide holes (302) are connected to the air source mechanism (360); all the drive rollers (210) and the positive pressure roller (301) together form a conveying plane for conveying glass sheet (400).

2. The glass sheet cooling conveyor of claim 1, wherein, The positive pressure roller (301) includes a central shaft (310), an outer bushing (320), and a bearing (330). The central shaft (310) is provided with a pressure chamber (311). A guide groove (312) is provided axially upward on the outer peripheral wall of the central shaft (310), with the opening of the guide groove (312) facing upward. A first exhaust hole (313) is provided in the guide groove (312), and the two ends of the first exhaust hole (313) are respectively connected to the guide groove (312). The outer bushing (320) and the pressure chamber (311); a plurality of second exhaust holes (321) are provided on the outer peripheral wall of the outer bushing (320) along the circumferential direction; the outer bushing (320) is sleeved on the central shaft (310), and the two ends of the outer bushing (320) are rotatably connected to the two ends of the central shaft (310) through bearings (330) respectively. When the outer bushing (320) rotates, the guide groove (312) can sequentially connect to the second exhaust holes (321).

3. The glass sheet cooling conveyor of claim 2, wherein, The outer peripheral wall of the outer bushing (320) is fitted with a silicone sleeve (340), and the silicone sleeve (340) is provided with a third vent hole (341) that communicates with the second vent hole (321).

4. The glass sheet cooling conveyor of claim 3, wherein, The third exhaust port (341) has a conical structure.

5. The glass sheet cooling conveyor of claim 4, wherein, The central shaft (310) is provided with sealing rings (350) at both ends, and the sealing rings (350) can seal both ends of the guide groove (312).

6. The glass sheet cooling and conveying device according to any one of claims 2 to 5, characterized in that, The air source mechanism (360) includes an air compressor, a main pipeline (361), a tee connector (362), and a right-angle connector (363). The air compressor is connected to the main pipeline (361). Multiple tee connectors (362) are provided and are sequentially arranged on the main pipeline (361). One end of the right-angle connector (363) is connected to the tee connector (362), and the other end of the right-angle connector (363) is connected to the central shaft (310).

7. The glass sheet cooling and conveying device according to claim 6, characterized in that, A plug (370) is provided at the end of the central shaft (310) away from the right-angle connector (363).

8. The glass sheet cooling and conveying device according to claim 1, characterized in that, The conveying roller assembly (200) includes a drive motor (220), a first synchronous pulley (230), a second synchronous pulley (240), and a synchronous belt (250); the output end of the drive motor (220) is connected to the first synchronous pulley (230), the second synchronous pulley (240) is connected to one end of the drive roller (210), and the first synchronous pulley (230) and the second synchronous pulley (240) are connected by the synchronous belt (250).

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