Method for transporting glass substrate

Abstract

The present invention discloses a method for transferring a glass substrate, which uses a device to prevent the glass from tilting forward and breaking during variable-angle conveying. The device includes a main frame, a mounting base and a support base fixedly provided on the main frame, a driving cylinder rotatably mounted on the mounting base, a driving base installed at the output end of the driving cylinder, an air-floating plate rotatably mounted on the support base, a driving rod provided on the driving base, and the driving rod rotatably mounted on the air-floating plate through a driving support; a driving wheel assembly for driving the glass substrate is provided on one side of the air-floating plate, and a plurality of adsorption mechanisms and a plurality of clamping mechanisms are provided on the other side of the air-floating plate; the present invention can effectively prevent the glass from tilting forward during variable-angle conveying, avoid the problem of glass breaking due to tilting forward, thereby reducing process losses and the time of production line downtime for cleaning broken plates.

Description

Technical Field

[0001] The present invention relates to the technical field of glass substrate production and transportation, and in particular to a method for transporting a glass substrate. Background Art

[0002] When TFT-LCD glass substrates are transported to downstream equipment, they are conveyed from upstream equipment at an angle of 7° to the horizontal plane, while the conveyor belt of the downstream equipment that receives the glass plates is at an angle of 80° to the horizontal plane. The angles of the two equipment are different, so variable angle transportation is required between 7° and 80°, that is, the glass is received at 7° from the upstream equipment and transported to the downstream equipment at 80°. In order to minimize the contact area between the equipment and the glass surface and reduce scratches on the glass surface caused by contact, the angle-changing conveying adopts an air flotation conveying method. That is, an air flotation plate composed of a certain number of air flotation strips uses the buoyancy of air to enable contactless conveyance of glass substrates on the air flotation plate. At the same time, to reduce the vibration of the glass caused by excessive angle variation and the resulting scratches on the glass surface caused by contact with the air flotation plate, a segmented angle variation is adopted, that is, first changing the angle from 7° to 45°, and then from 45° to 80°. In this process, since the glass is floated above the air flotation plate by the buoyancy of air (the floating amount is 1mm), the glass will tilt forward due to the action of gravity at each stage of angle variation and break. Summary of the Invention

[0003] The object of the present invention is to provide a method for transferring glass substrates, which can effectively prevent the glass from tilting forward during variable-angle transportation, avoid the problem of glass breaking due to tilting forward, thereby reducing process losses and production line downtime for cleaning broken plates.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A method for transporting a glass substrate uses a device to prevent the glass from tilting forward and breaking during angled transport. The device includes a main frame, a mounting base and a support base fixedly provided on the main frame, a drive cylinder rotatably mounted on the mounting base, a drive base mounted on the output end of the drive cylinder, an air floatation plate rotatably mounted on the support base, a drive rod provided on the drive base, and the drive rod rotatably mounted on the air floatation plate via a drive support; a drive wheel assembly for driving the glass substrate is provided on one side of the air floatation plate, and multiple groups of adsorption mechanisms and multiple groups of clamping mechanisms are provided on the other side of the air floatation plate.

[0006] As a further solution of the present invention: the driving rod includes a fixed sleeve, a connecting rod is slidably provided on the fixed sleeve, and a spring is provided on the outer periphery of the connecting rod.

[0007] As a further solution of the present invention: a positioning ring is fixedly provided at the lower part of the air floating plate, and a positioning groove is provided on the positioning ring for turning the air floating plate to different angles.

[0008] As a further solution of the present invention: the driving wheel assembly includes a connecting seat fixedly arranged on the air floating plate, the connecting seat is provided with a driving wheel seat, and the driving wheel seat is installed with a driving roller and a guide wheel.

[0009] As a further solution of the present invention: a connecting bracket is fixedly provided on the connecting seat, a cylinder 1 is fixedly installed on the connecting bracket, an output end of the cylinder 1 is connected to the driving wheel seat, and the driving wheel seat is slidably connected to the connecting seat.

[0010] As a further solution of the present invention: the adsorption mechanism includes a second cylinder, an output end of the second cylinder is fixedly connected to an adsorption plate, and a plurality of adsorption holes are evenly distributed on the adsorption plate.

[0011] As a further solution of the present invention: the clamping mechanism includes a clamping seat, on which a double-headed cylinder is fixedly mounted, and two output ends of the double-headed cylinder are respectively fixedly connected to an upper clamping plate and a lower clamping plate.

[0012] The beneficial effects of the present invention are as follows: after the 7° air float plate receives the glass substrate transmitted from the upstream equipment at an angle of 7°, before the angle is changed to 45°, the seven adsorption mechanisms advance under the action of the cylinder to adsorb the upper edge of the glass. At the same time, the four clamping mechanisms located at the upper edge of the air float plate also advance under the action of the cylinder to clamp the upper edge of the glass. When the adsorption mechanism and the clamping mechanism complete the action of fixing the upper edge of the glass, the air float plate changes the angle from 7° to 45°. At this time, the clamping mechanism opens, the adsorption mechanism releases the vacuum, and under the action of the cylinder, the adsorption mechanism and the clamping mechanism retreat to a certain position, and the glass on the air float plate is transported to the lower air float plate. The angle change from 45° to 80° is completed in the same way, and the angle-changed transport of the glass substrate is completed. During the angle changing process, the adsorption mechanism and the clamping mechanism work together to hold the edge of the glass floating on the air flotation plate tightly in place when the angle is changed and flipped. This effectively improves the reliability of preventing the glass substrate from tilting forward and falling off the air flotation plate during angle changing transportation, thus preventing it from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the main structure of the present invention as a whole;

[0015] Figure 2 It is a side view structural diagram of the present invention as a whole;

[0016] Figure 3 This invention Figure 1Schematic diagram of the enlarged structure at point A in the middle.

[0017] In the figure: 1. Main frame; 2. Mounting base; 3. Driving cylinder; 4. Driving seat; 5. Driving rod; 6. Spring; 7. Driving support; 8. Air float plate; 9. Support seat; 10. Positioning ring; 11. Connecting seat; 12. Connecting bracket; 13. Cylinder 1; 14. Driving wheel seat; 15. Driving roller; 16. Guide wheel; 17. Adsorption mechanism; 171. Cylinder 2; 172. Adsorption plate; 18. Clamping mechanism; 181. Clamping seat; 182. Double-headed cylinder; 183. Upper splint; 184. Lower splint. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 3 As shown, the present invention is a method for transporting glass substrates, which uses a device to prevent the glass from tilting forward and breaking during angled transport. The device includes a main frame 1, on which a mounting base 2 and a support base 9 are fixedly provided. A driving cylinder 3 is rotatably mounted on the mounting base 2, and a driving base 4 is mounted on the output end of the driving cylinder 3. An air floating plate 8 is rotatably mounted on the support base 9, and a driving rod 5 is provided on the driving base 4. The driving rod 5 is rotatably mounted on the air floating plate 8 through a driving support 7; a driving wheel assembly for driving the glass substrate is provided on one side of the air floating plate 8, and a plurality of adsorption mechanisms 17 and a plurality of clamping mechanisms 18 are provided on the other side of the air floating plate 8.

[0020] The area where the clamping mechanism 18 and the adsorption mechanism 17 contact the glass is the ineffective area of ​​the glass. Based on the upper edge of the glass, the range is ≤5mm. While ensuring the reliability of preventing the glass from tilting forward and breaking during angled transportation, the area in contact with the glass surface is minimized.

[0021] The driving rod 5 comprises a fixed sleeve, on which a connecting rod is slidably arranged, and a spring 6 is arranged on the outer periphery of the connecting rod.

[0022] A positioning ring 10 is fixedly provided at the lower part of the air floating plate 8. The positioning ring 10 is provided with positioning grooves for the air floating plate 8 to be flipped to different angles. The positioning ring 10 plays a role in accurately positioning the rotation angle of the air floating plate 8.

[0023] The drive wheel assembly includes a connecting base 11 fixed to the air flotation plate 8. A drive wheel base 14 is mounted on this base 11, and a drive roller 15 and a guide wheel 16 are mounted on this drive wheel base 14. A connecting bracket 12 is fixed to the connecting base 11, and a cylinder 13 is fixed to this bracket 12. The output end of cylinder 13 is connected to the drive wheel base 14, which is slidably connected to the connecting base 11. Cylinder 13 drives the drive wheel base 14 to slide, adjusting the position of the drive roller 15 and guide wheel 16, thereby adjusting the position of the glass substrate.

[0024] The adsorption mechanism 17 includes a second cylinder 171, and the output end of the second cylinder 171 is fixedly connected to an adsorption plate 172. A number of adsorption holes are evenly distributed on the adsorption plate 172, and the adsorption holes are equidistantly distributed. The adsorption hole diameter is Φ0.9mm and the hole spacing is 12mm to ensure balanced adsorption force.

[0025] The clamping mechanism 18 includes a clamping seat 181 , on which a double-headed cylinder 182 is fixedly mounted. Two output ends of the double-headed cylinder 182 are fixedly connected to an upper clamping plate 183 and a lower clamping plate 184 , respectively.

[0026] The present invention specifically includes the following steps when transferring the glass substrate:

[0027] Step 1: After the 7° air float plate 8 receives a glass substrate conveyed from an upstream device at a 7° angle, and before the air float plate 8 changes its angle from 7° to 45°, the eight adsorption mechanisms 17 located on the upper edge of the air float plate 8 advance perpendicularly to the glass surface under the action of a cylinder. When the cylinder contacts the lower surface of the glass, the cylinder stops. At this time, the adsorption mechanisms 17 adhere to the lower surface of the glass under the action of vacuum pressure, with a distance of ≤5mm from the edge of the glass.

[0028] Step 2: Similarly, the four clamping mechanisms 18 located on the upper edge of the air floating plate 8 also clamp the upper edge of the glass under the action of the double-headed cylinder 182, with a distance from the edge of the glass ≤ 5 mm;

[0029] Step 3: After steps 1 and 2 are completed, the 7° air floating plate 8 is angled from 7° to 45°;

[0030] Step 4: After the air float plate 8 has completed the angle change from 7° to 45°, the clamping mechanism 18 opens, the adsorption mechanism 17 releases the vacuum, and the adsorption mechanism 17 and the clamping mechanism 18 retreat to a position where they are not in contact with the lower surface of the glass under the action of the cylinder, and the glass is transported to the lower air float plate 8;

[0031] Step 5: Similarly, before the air flotation plate 8 changes its angle from 45° to 80°, the eight adsorption mechanisms 17 located on the upper edge of the air flotation plate 8 advance in a direction perpendicular to the glass surface under the action of the cylinder. The cylinder stops when it contacts the lower surface of the glass. At this time, the adsorption mechanisms 17 adhere to the lower surface of the glass under the action of vacuum pressure, with a distance of ≤5mm from the edge of the glass. Similarly, the four clamping mechanisms 18 located on the upper edge of the air flotation plate 8 also advance under the action of the cylinder, clamping the upper edge of the glass, with a distance of ≤5mm from the edge of the glass.

[0032] Step 6: After step 5 is completed, the 45° air floating plate 8 is angled from 45° to 80°;

[0033] In step 7, when the air float plate 8 completes the angle change from 45° to 80°, the clamping mechanism 18 opens and the adsorption mechanism 17 releases the vacuum. Under the action of the cylinder, the adsorption mechanism 17 and the clamping mechanism 18 retreat to a position where they do not contact the lower surface of the glass, and the glass is transported to the 80° receiving conveyor belt of the downstream equipment.

[0034] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for transporting a glass substrate, characterized in that: The method uses a device for preventing glass from tilting forward and breaking during angled conveying, the device comprising a main frame (1), a mounting base (2) and a support base (9) fixedly provided on the main frame (1), a driving cylinder (3) rotatably provided on the mounting base (2), a driving base (4) provided at the output end of the driving cylinder (3), an air float plate (8) rotatably provided on the support base (9), a driving rod (5) provided on the driving base (4), the driving rod (5) rotatably provided on the air float plate (8) via a driving support (7); a driving wheel assembly for driving a glass substrate is provided on one side of the air float plate (8), and a plurality of adsorption mechanisms (17) and a plurality of clamping mechanisms (18) are provided on the other side of the air float plate (8); The method comprises the following steps: Step 1, after the 7° air float plate (8) receives the glass substrate transmitted from the upstream device at an angle of 7°, before the air float plate (8) changes its angle from 7° to 45°, the eight adsorption mechanisms (17) located on the upper edge of the air float plate (8) advance in a direction perpendicular to the glass surface under the action of the cylinder. When the cylinder contacts the lower surface of the glass, the cylinder stops. At this time, the adsorption mechanism (17) adsorbs the lower surface of the glass under the action of vacuum pressure, and the distance from the edge of the glass is ≤5mm; Step 2: Similarly, the four clamping mechanisms (18) located at the upper edge of the air floating plate (8) also clamp the upper edge of the glass under the action of the double-headed cylinder (182), with the distance from the edge of the glass being ≤5mm; Step 3, after steps 1 and 2 are completed, the 7° air float plate (8) is angled from 7° to 45°; Step 4, when the air float plate (8) completes the angle change from 7° to 45°, the clamping mechanism (18) is opened, the adsorption mechanism (17) releases the vacuum, and the adsorption mechanism (17) and the clamping mechanism (18) retreat to a position where they are not in contact with the lower surface of the glass under the action of the cylinder, and the glass is transported to the lower air float plate (8); Step 5, similarly, before the air flotation plate (8) changes its angle from 45° to 80°, the eight adsorption mechanisms (17) located on the upper edge of the air flotation plate (8) advance in a direction perpendicular to the glass surface under the action of the cylinder, and the cylinder stops when it contacts the lower surface of the glass. At this time, the adsorption mechanism (17) adsorbs the lower surface of the glass under the action of vacuum pressure, and the distance from the edge of the glass is ≤5mm. Similarly, the four clamping mechanisms (18) located on the upper edge of the air flotation plate (8) also advance under the action of the cylinder, clamping the upper edge of the glass, and the distance from the edge of the glass is ≤5mm. Step 6, after step 5 is completed, the 45° air float plate (8) is angled from 45° to 80°; Step 7, when the air float plate (8) completes the angle change from 45° to 80°, the clamping mechanism (18) is opened, the adsorption mechanism (17) releases the vacuum, and the adsorption mechanism (17) and the clamping mechanism (18) retreat to a position where they do not contact the lower surface of the glass under the action of the cylinder, and the glass is transported to the 80° receiving conveyor belt of the downstream equipment.

2. A method for transporting a glass substrate according to claim 1, characterized in that: The driving rod (5) comprises a fixed sleeve, a connecting rod is slidably arranged on the fixed sleeve, and a spring (6) is arranged on the outer periphery of the connecting rod.

3. The method for transporting a glass substrate according to claim 1, wherein: A positioning ring (10) is fixedly provided at the lower portion of the air floating plate (8), and a positioning groove for flipping the air floating plate (8) to different angles is provided on the positioning ring (10).

4. The method for transporting a glass substrate according to claim 1, wherein: The driving wheel assembly comprises a connecting seat (11) fixedly arranged on the air flotation plate (8), a driving wheel seat (14) being arranged on the connecting seat (11), and a driving roller (15) and a guide wheel (16) being mounted on the driving wheel seat (14).

5. The method for transporting a glass substrate according to claim 4, wherein: A connecting bracket (12) is fixedly provided on the connecting seat (11), a cylinder 1 (13) is fixedly installed on the connecting bracket (12), an output end of the cylinder 1 (13) is connected to a driving wheel seat (14), and the driving wheel seat (14) is slidably connected to the connecting seat (11).

6. The method for transporting a glass substrate according to claim 1, wherein: The adsorption mechanism (17) comprises a second cylinder (171), an output end of the second cylinder (171) is fixedly connected to an adsorption plate (172), and a plurality of adsorption holes are evenly distributed on the adsorption plate (172).

7. The method for transporting a glass substrate according to claim 1, wherein: The clamping mechanism (18) comprises a clamping seat (181), a double-headed cylinder (182) is fixedly mounted on the clamping seat (181), and two output ends of the double-headed cylinder (182) are respectively fixedly connected to an upper clamping plate (183) and a lower clamping plate (184).

Images