A device for removing glass panels after grinding

Abstract

The present invention relates to the field of glass panel processing technology, specifically a glass panel removal device after grinding, which aims to solve the technical problem that the existing glass panel is difficult to remove from the adsorption pad after grinding. The following technical scheme is adopted: it includes a mounting substrate, the edges of the mounting substrate are convex on the same side to form an annular fitting portion, the end face of the annular fitting portion is embedded with a cavity sealing ring, the outer side of the mounting substrate is fixedly connected to a guide member, the guide member is slidably installed with a sliding member, the sliding member is fixedly connected to a suction cup mounting plate, a plurality of suction cup mounting rods are fixed on the suction cup mounting plate, each suction cup mounting rod is sealed through the mounting substrate and then extends into the sealed cavity, and a vacuum suction cup is installed at the end of the suction cup mounting rod located in the sealed cavity, the length direction of all suction cup mounting rods is consistent with the sliding direction of the sliding member and is perpendicular to the plane where the cavity sealing ring is located, the sliding member or the suction cup mounting plate is connected to a power mechanism for driving the sliding member to slide along the guide member, and the sealed cavity is connected to a vacuum pumping mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of glass panel processing, in particular to a device for removing a glass panel after grinding. Background Art

[0002] Liquid crystal glass panel is one of the panels used in the currently widely used flat panel displays, with the advantages of low power consumption, thin appearance, and light weight. With the development of LCD technology, desktop LCD monitors, notebook LCD monitors, and large-size LCD TVs have become increasingly popular. In order to cope with the development trend of thinning products of various types of LCD monitors, high-generation production lines have been put into the production of thin products. Among them, the thickness of single-piece glass has been gradually thinned from the popular 0.7mm and 0.63mm to 0.5mm, 0.4mm, and even products produced with glass substrates below 0.3mm have been produced.

[0003] The existing thinning processes in the TFT-LCD industry are mainly divided into two categories: one is chemical etching, which uses liquid solutions to react chemically with surface materials. Based on the principle that HF ​​acid reacts with SiO2 to dissolve it, the panel glass surface is etched to make the panel thinner; the other is physical grinding, which uses mechanical grinding to thin the liquid crystal panel in a purely physical way. For large-sized and thin glass panels, the existing physical grinding uses the following operation: the glass panel to be ground is attached to the adsorption pad through a small amount of liquid, and then the glass surface is physically ground using a grinding head. Because there is liquid between the glass panel and the adsorption pad, the pressure applied during grinding causes the liquid and gas between the two to be discharged, forming a vacuum cavity. Therefore, after grinding, the glass panel will be forced to press onto the adsorption pad under the action of atmospheric pressure, making it difficult to remove.

[0004] In order to solve the technical problem of difficulty in removing the glass panel after grinding, the common method is to pick up the edge of the glass and then flush it with a water gun or an air gun to destroy the vacuum environment between the glass panel and the adsorption pad to complete the removal. However, this method is time-consuming and labor-intensive, and is prone to causing glass breakage and scratches, etc., with a high damage rate. Summary of the invention

[0005] The invention aims to solve the technical problem that the existing glass panel is difficult to be removed from the adsorption pad after being ground.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A device for removing a glass panel after grinding comprises a mounting substrate, wherein the edges of the mounting substrate are convex on the same side to form an annular fitting portion for contacting an adsorption pad, and the end surface of the annular fitting portion for contacting the adsorption pad is embedded with a cavity sealing ring, and when the annular fitting portion contacts the adsorption pad, a sealed cavity for accommodating the glass panel to be ground is formed through the cavity sealing ring, and a guide is fixedly connected to the outer side of the mounting substrate, and a sliding member is slidably installed on the guide member, and the sliding member is fixedly connected to a suction cup mounting plate, and a plurality of suction cup mounting rods are fixed on the suction cup mounting plate, and each suction cup mounting rod is sealed and passes through the mounting substrate. It extends into the sealing cavity, and a vacuum suction cup is installed on the end of the suction cup mounting rod located in the sealing cavity (vacuum suction cup is a relatively mature technology, and people in this field are aware that the vacuum suction cup should be connected to a vacuum source through a tube. The specific arrangement of the tube is also easy to arrange in this field, such as inserting the tube into the inside of the suction cup mounting rod), the length direction of all suction cup mounting rods is consistent with the sliding direction of the sliding part and is perpendicular to the surface where the cavity sealing ring is located, the sliding part or the suction cup mounting plate is connected to a power mechanism for driving the sliding part to slide along the guide part, and the sealing cavity is connected to a vacuum pumping mechanism.

[0008] When taking out the film, first fit the annular fitting part onto the adsorption pad, form a sealed cavity through the cavity sealing ring, and place the glass panel to be taken out in the sealed cavity, start the vacuum device, extract the air in the sealed cavity to form a vacuum sealed cavity, and then start the vacuum suction cup to form a vacuum atmosphere in the suction cup, and the vacuum degree in the suction cup must be greater than the vacuum degree in the sealed cavity. At this time, the vacuum suction cup sucks the glass panel under the action of the pressure difference inside and outside the suction cup, and then start the power mechanism, which drives the sliding part to slide along the guide part, driving the vacuum suction cup to move, thereby separating the glass panel from the adsorption pad, and completing the film taking.

[0009] The beneficial effects of the present invention are:

[0010] The present invention provides a device for removing a glass panel after grinding, which creates a vacuum environment for the glass panel to be removed, eliminates the atmospheric pressure on the upper surface of the glass panel in principle, greatly reduces the pressure difference between the upper and lower sides of the glass panel, and makes it easy to remove the glass panel. Compared with the existing removal scheme, it is more time-saving and labor-saving, and is not easy to cause damage to the glass, thereby greatly reducing the damage rate of the glass panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1It is a structural schematic diagram of the film taking device of the present invention;

[0013] Figure 2 It is a structural schematic diagram of the cavity sealing ring of the present invention.

[0014] In the figure:

[0015] 1┄ mounting substrate; 2┄ annular fitting portion; 3┄ adsorption pad; 4┄ cavity sealing ring; 5┄ glass panel; 6┄ sealing cavity; 7┄ guide member; 8┄ sliding member; 9┄ suction cup mounting plate; 10┄ suction cup mounting rod; 11┄ vacuum suction cup; 12┄ power mechanism; 13┄ vacuum extraction mechanism; 14┄ groove; 15┄ sealing ring body; 16┄ leg; 17┄ vacuum pressure relief valve ; 18┄Vacuum pressure reducing valve ;19┄Pressure regulating valve. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0017] Reference Figure 1 to Figure 2, a glass panel after grinding device of the present invention comprises a mounting substrate 1, the edge of the mounting substrate 1 is convex on the same side to form an annular fitting part 2 for contacting the adsorption pad 3, the shape of the annular fitting part 2 can be a circular ring or a square ring or other common ring; the end face of the annular fitting part 2 for contacting the adsorption pad 3 is embedded with a cavity sealing ring 4, when the annular fitting part 2 contacts the adsorption pad 3, a sealing cavity 6 for accommodating the glass panel 5 is formed through the cavity sealing ring 4, and the cavity sealing ring 4 can be a common sealing ring or an inflatable sealing ring, etc., the end face of the annular fitting part 2 for contacting the adsorption pad 3 can be a plane or an inclined surface or a surface of other shapes, as long as the sealing can be achieved through the cavity sealing ring 4, preferably a plane that can be completely fitted with the adsorption pad 3 is adopted, so that the mounting substrate 1 is evenly stressed and the structure is more stable; when installing the mounting substrate 1, it needs to be pressed on the adsorption plate by manual or machine support, and when the vacuum mechanism 13 works, the mounting substrate 1 is under the action of atmospheric pressure. When it is used, it will be pressed more firmly on the adsorption plate; the outer side of the mounting substrate 1 is fixedly connected to the guide member 7, and the guide member 7 is slidably installed with a sliding member 8. The structures of the guide member 7 and the sliding member 8 are not limited, as long as the linear limiting effect can be achieved, such as the guide member 7 is an axis and the sliding member 8 is a cylinder, or the guide member 7 is a cylinder and the sliding member 8 is an axis, or the guide member 7 is a slide rail and the sliding member 8 is a slider, or other common sliding structures are all possible, the sliding member 8 is fixedly connected to the suction cup mounting plate 9, and a plurality of suction cup mounting rods 10 are fixed on the suction cup mounting plate 9, each suction cup mounting rod 10 is sealed and extends into the sealing cavity 6 after passing through the mounting substrate 1, and a vacuum suction cup 11 is installed at the end of the suction cup mounting rod 10 located in the sealing cavity 6, and the length direction of all suction cup mounting rods 10 is consistent with the sliding direction of the sliding member 8 and is perpendicular to the surface where the cavity sealing ring 4 is located, the sliding member 8 or the suction cup mounting plate 9 is connected to a power mechanism 12 for driving the sliding member 8 to slide along the guide member 7, and the sealing cavity 6 is connected to a vacuum pumping mechanism 13. When taking out the film, firstly, the annular fitting part 2 is fitted to the adsorption pad 3, a sealed cavity 6 is formed through the cavity sealing ring 4, and the glass panel 5 to be taken out is located in the sealed cavity 6, and the vacuum device is started to extract the air in the sealed cavity 6 to form a vacuum sealed cavity 6, and then the vacuum suction cup 11 is started to form a vacuum atmosphere in the suction cup, and the vacuum degree in the suction cup must be greater than the vacuum degree in the sealed cavity 6. At this time, the vacuum suction cup 11 sucks the glass panel 5 under the action of the pressure difference between the inside and outside of the suction cup, and then the power mechanism 12 is started. The power mechanism 12 drives the sliding member 8 to slide along the guide member 7, driving the vacuum suction cup 11 to move, thereby separating the glass panel 5 from the adsorption pad 3, and completing the film taking.

[0018] Furthermore, a groove 14 is provided on the end face of the annular fitting portion 2 for contacting the adsorption pad 3. The groove 14 is a combination of a dovetail groove and a rectangular groove. The rectangular groove is located on the outside of the dovetail groove and is adapted to the groove opening of the dovetail groove. The cavity sealing ring 4 is integrally formed by a sealing ring body 15 and two legs 16. The sealing ring body 15 is embedded in the rectangular groove. The two legs 16 are distributed in an "eight-shaped" shape corresponding to the two side walls of the dovetail groove. When not sealed, the two legs 16 and the bottom of the dovetail groove form a closed cavity. The sealed cavity is connected to an air-charging mechanism. When sealed, the closed cavity is inflated so that the sealing ring body 15 abuts against the adsorption pad 3 to complete the sealing. When working, the air is inflated into the closed cavity, the sealing ring body 15 moves outward, and the two legs 16 move toward the side wall of the dovetail groove. Then the two legs 16 are closely attached to the two side walls of the dovetail groove, which prevents air leakage on the one hand, and clamps the sealing ring in the groove 14 on the other hand to prevent the sealing ring from running out; when not working, the closed cavity is vacuumed, and the sealing ring is pressed back into the groove 14 under the action of the external atmospheric pressure until the two legs 16 contact the bottom of the dovetail groove, forming a closed cavity again. The structure is ingenious and the sealing performance is better.

[0019] Furthermore, the suction cup is equipped with a vacuum pressure relief valve I17, and the vacuum pumping mechanism 13 is equipped with a vacuum pressure relief valve II18. The two vacuum pressure relief valves are used to control the pressure difference between the inside and outside of the vacuum suction cup 11 to avoid the glass panel 5 from breaking due to excessive pressure difference.

[0020] Furthermore, the power mechanism 12 is integrated with a travel sensor, which can detect when the glass panel 5 leaves the adsorption pad 3 .

[0021] Preferably, the power mechanism 12 is a cylinder, the piston rod of the cylinder is fixedly connected to the suction cup mounting plate 9, and the cylinder is equipped with a pressure regulating valve 19, which has a simple structure and reliable performance. The pressure valve is used to prevent the cylinder driving force from being too large and damaging the glass panel 5.

[0022] Furthermore, the guide member 7 and the sliding member 8 are provided with multiple groups, the guide member 7 is a guide shaft, and the sliding member 8 is a linear bearing. Multiple groups ensure that the glass panel 5 is evenly stressed, and the linear bearing ensures the accuracy of the suction cup operation, thereby ensuring that the force direction of the glass panel 5 is always perpendicular to itself, avoiding damage to the glass panel 5 caused by the application of forces in other directions.

[0023] The same or similar numbers in the drawings of the embodiments correspond to the same or similar parts; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A device for removing a glass panel after grinding, characterized in that: The invention comprises a mounting substrate (1), wherein the edges of the mounting substrate (1) are convex on the same side to form an annular fitting portion (2) for contacting an adsorption pad (3), the end surface of the annular fitting portion (2) for contacting the adsorption pad (3) is embedded with a cavity sealing ring (4), and when the annular fitting portion (2) contacts the adsorption pad (3), a sealed cavity (6) for accommodating a glass panel (5) is formed through the cavity sealing ring (4), the outer side of the mounting substrate (1) is fixedly connected to a guide member (7), the guide member (7) is slidably mounted with a sliding member (8), the sliding member (8) is fixedly connected to a suction cup mounting plate (9), and the suction cup mounting plate (9) is fixedly mounted on the suction cup mounting plate (9). There are a plurality of suction cup mounting rods (10), each suction cup mounting rod (10) is sealed through the mounting substrate (1) and then extends into the sealing cavity (6), and a vacuum suction cup (11) is installed at the end of the suction cup mounting rod (10) located in the sealing cavity (6), the length direction of all suction cup mounting rods (10) is consistent with the sliding direction of the sliding member (8) and is perpendicular to the plane where the cavity sealing ring (4) is located, the sliding member (8) or the suction cup mounting plate (9) is connected to a power mechanism (12) for driving the sliding member (8) to slide along the guide member (7), and the sealing cavity (6) is connected to a vacuum pumping mechanism (13); When removing the sheet, a vacuum cavity is formed in the sealing cavity (6) and the vacuum suction cup (11), and the vacuum degree in the vacuum suction cup (11) is controlled to be greater than the vacuum degree in the sealing cavity (6) so that the vacuum suction cup (11) can suck the glass panel (5), and the glass panel (5) is separated from the adsorption pad (3) by the power mechanism (12) to complete the sheet removal; The end surface of the annular fitting portion (2) for contacting the adsorption pad (3) is provided with a groove (14), the groove (14) being a combination of a dovetail groove and a rectangular groove, the rectangular groove being located outside the dovetail groove and being adapted to the groove opening of the dovetail groove, the cavity sealing ring (4) being integrally formed by a sealing ring body (15) and two legs (16), the sealing ring body (15) being embedded in the rectangular groove, the two legs (16) being arranged in an "eight-shaped" shape corresponding to the two side walls of the dovetail groove, and when not sealed, the two legs (16) and the groove bottom of the dovetail groove enclose a closed cavity, the closed cavity being connected to an air-intake mechanism, and when sealed, the closed cavity is inflated so that the sealing ring body (15) abuts against the adsorption pad (3) to complete the sealing; The vacuum suction cup (11) is equipped with a vacuum pressure-regulating valve I (17), and the vacuum extraction mechanism (13) is equipped with a vacuum pressure-regulating valve II (18).

2. The device for removing a glass panel after grinding according to claim 1, characterized in that: The power mechanism (12) is integrated with a travel sensor.

3. A device for removing a glass panel after grinding according to claim 1 or 2, characterized in that: The power mechanism (12) is a cylinder, the piston rod of the cylinder is fixedly connected to the suction cup mounting plate (9), and the cylinder is provided with a pressure regulating valve (19).

4. The device for removing a glass panel after grinding according to claim 3, characterized in that: The guide member (7) and the sliding member (8) are provided in multiple groups, the guide member (7) is a guide shaft, and the sliding member (8) is a linear bearing.

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