JPH09216186A - Vacuum suction pad for sheet glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retain a pad on a sheet glass with a slight pressing force by forming a pad base part whose one end opens to a section which a skirt part surrounds and whose other end is communicated with an air passage and a flexible lip part which is formed into a skirt shape so that it may be compressed and deformed freely. SOLUTION: An air passage 2 which is constituted of a longitudinal air passage 11 and a lateral air passage 12 is formed at a base part 3. The longitudinal air passage 11 is communicated with one end of an air passage 7 at the other end 13 which opens in the middle of the base 3 and is screwed with the other end 16 of an attracting pipe 15 at the external opening end 14 of the lateral air passage 12. The upper surface of a pad base part 8 is fixed at the base part 3, provided with a skirt part 4 formed integrally with a main body 21 and passes through the middle part of the main body 21 to form the air passage 7. The skirt part 4 of the pad base part 8, which can be bent and deformed freely, is formed so that it may be more difficult to bend and deform than a lip part 9. It is thus possible to retain sheet glass such as wavy glass even with slight pressing effort.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum suction pad for lifting and holding a glass plate in a glass plate conveying device of a glass plate processing device.

[0002]

SUMMARY OF THE INVENTION For example, in a glass plate processing apparatus configured to successively break a glass plate into a predetermined shape and polish the peripheral edge of the broken glass plate, the glass plate is folded from an entrance table. The raw glass plate is loaded into the splitting section, after the splitting processing, the split glass sheet is transported from the splitting processing section to the polishing processing section, and after the polishing processing, the polished glass sheet is unloaded from the polishing processing section. A transfer device equipped with a vacuum suction pad is used for carrying out to a table. In order to lift and hold a glass plate, the vacuum suction pad of this transfer device is usually formed by attaching a sponge-like single cylindrical body 101 to a pad base portion 102, as shown in FIG. By pressing on the surface 104 of the glass plate 103 to evacuate the inside of the cylindrical body 101 to suck the glass plate 103 into the cylindrical body 101 by vacuum, the pad base 102 is lifted up, and the glass plate 103 is lifted in the same manner. There is.

By the way, in the vacuum suction pad 105 as shown in FIG. 3, the cylindrical body 101 generally has a large thickness d.
Therefore, when vacuum adsorbing a glass plate 103 such as a corrugated glass having an uneven surface, it is necessary to strongly press the cylindrical body 101 against the surface 104 of the glass plate 103. If the glass plate 103 is pressed so strongly, the glass plate 103 may be broken. Furthermore, the cylindrical body 1
If it is 01, the vacuum suction force must also be large, and the glass plate 103 is no longer held due to a slight change in the vacuum suction force or a small change in the glass plate 103,
There is also a risk of dropping and breaking the glass plate 103. In addition, a gap is likely to be formed between the cylindrical body 101 and the surface 104 of the glass plate 103, which may cause the glass plate 103 to drop.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a vacuum suction pad for a glass plate capable of firmly holding a weak pressing force or a glass plate such as corrugated glass. To provide.

[0005]

SUMMARY OF THE INVENTION According to the present invention, said object comprises a base having an air passage and a flexible skirt attached to the base and having a diameter that increases with distance from the base. And a pad base portion having one end opening at a portion surrounded by the skirt portion and an air passage communicating with the air passage at the base portion at the other end, and is compressible and deformable, and is attached to the pad base portion and attached to the base portion. It is achieved by a vacuum suction pad for a glass plate, which has a flexible lip portion formed in the shape of a skirt whose diameter increases with increasing distance from.

In a preferred example, the base portion is made of metal, particularly aluminum, the pad base portion is made of an elastic material such as natural rubber or synthetic rubber, and the lip portion is so-called sponge-like and has a closed cell structure. And is non-breathable, and is attached to the inner peripheral surface of the skirt portion of the pad base portion on the small diameter side.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in more detail based on the preferred embodiments shown in the drawings. The present invention is not limited to these examples.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a vacuum suction pad 1 for a glass plate of the present embodiment is a base portion 3 having an air passage 2, and a flexible member which is attached to the base portion 3 and whose diameter increases as the distance from the base portion 3 increases. Having a flexible skirt portion 4, one end 5 is opened at a portion surrounded by the skirt portion 4, and the other end 6 is provided with a base portion 3
A pad base 8 having an air passage 7 communicating with the air passage 2, and is flexible in the form of a skirt that is compressible and deformable and that is attached to the pad base 8 and expands in diameter as it moves away from the base 3. And a lip portion 9 having a sex.

The aluminum base 3 is formed with an air passage 2 consisting of a vertical air passage 11 and a horizontal air passage 12 communicating with the vertical air passage 11. The vertical air passage 11 has a substantially central portion of the base 3. One end 13 of the suction pipe 15 is connected to the other end 6 of the air passage 7 at one end 13 of the suction passage 15 which is open at 1.

The pad base 8 made of a relatively hard (or soft) elastic material such as rubber is firmly fixed to the base 3 on its upper surface by screws, bolts, rivets, adhesives or vulcanization adhesion. The main body 21 and the skirt portion 4 formed integrally with the main body 21 are provided, and the air passage 7 is formed through the central portion of the main body 21. In addition,
The skirt portion 4 of the pad base portion 8 can be bent and deformed, but is formed so as not to be bent and deformed as compared with the lip portion 9.

The lip portion 9 is made of rubber or the like and has a so-called sponge shape, but the air bubbles (a large number of minute air chambers formed therein) are independent of each other so as to have non-permeability. The lip portion 9 is attached to the inner peripheral surface 32 of the skirt portion 4 of the pad base portion 8 on the small diameter side 31 thereof.

The above vacuum suction pad 1 is used by being detachably attached to, for example, an attachment 42 of a conveying device with a screw 41. Then, as shown in FIG.
When the corrugated glass 52 having the uneven surface 51 is adsorbed and lifted, the vacuum adsorption pad 1 is lowered so that the expanded side 53 of the lip portion 9 is slightly bent and deformed to expand the corrugated glass 52. Is pressed against the uneven surface 51. In addition,
By this pressing, the skirt portion 4 of the pad base portion 8 is also slightly bent and deformed to expand its diameter. The space 54 surrounded by the pad base portion 8 and the lip portion 9 is evacuated through the suction pipe 15, the air passage 2 and the air passage 7 to form the space 5
The negative pressure is applied to the corrugated glass 4, and the corrugated glass 52 is adsorbed to the vacuum suction pad 1 and lifted as the vacuum suction pad 1 rises. When the vacuum is released, the holding of the vacuum suction pad 1 on the corrugated glass 52 is released.

In the vacuum suction pad 1, since the corrugated glass 52 is adsorbed by pressing the relatively thin, compressible and deformable lip portion 9 against the uneven surface 51 of the corrugated glass 52, the corrugated glass 52 is pressed by a small pressing force. The lip portion 9 can be deformed and adhered along the uneven surface 51, and complete adsorption can be achieved relatively easily.

The vacuum suction pad 1 has an uneven surface 51.
It can be used not only for the corrugated glass 52 having the above, but also for a normal glass plate having a smooth surface.

[0015]

As described above, according to the present invention, since the pad portion which can be compressed and deformed is provided, a weak pressing force or a glass plate such as corrugated glass can be firmly held.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a preferred embodiment of the present invention.

FIG. 2 is an explanatory view of the operation of the embodiment shown in FIG.

FIG. 3 is an explanatory diagram of an example of a conventional vacuum suction pad.

[Explanation of symbols]

 1 Vacuum suction pad 2 Air passage 3 Base portion 4 Skirt portion 7 Air passage passage 8 Pad base portion 9 Lip portion

Claims (4)

[Claims] 1. A base having an air passage, and a flexible skirt attached to the base and having a diameter that increases as the distance from the base increases. One end is surrounded by the skirt. A pad base having an air passage that opens and communicates with the air passage at the base at the other end, is compressible and deformable, and is formed in a skirt shape that is attached to the pad base and increases in diameter as it moves away from the base. Vacuum suction pad for glass plate, which has a flexible lip portion. 2. The pad base is made of an elastic material.
A vacuum suction pad for a glass plate according to. 3. The vacuum suction pad for a glass plate according to claim 1, wherein the lip portion contains closed cells and is non-air-permeable. 4. The vacuum suction pad for a glass plate according to claim 1, wherein the lip portion is attached to the inner peripheral surface of the skirt portion of the pad base on the smaller diameter side.