JPH0585764A - Method and device for breaking plate glass - Google Patents

Abstract

PURPOSE:To automate the breaking of especially thick plate glass. CONSTITUTION:Plate glass 20 is held between an adsorptive pad 64A, 64A capable of plane contact with one side of the glass 20 and bendable at the central position and a receiving rod 44 disposed at the breaking position of the other side of the glass 20. The pad 64A, 64A is then bent to break the held plate glass 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate glass cutting method and apparatus for cutting a plate glass with a cutter and then folding and cutting the plate glass along the cutting line.

[0002]

2. Description of the Related Art Conventionally, when cutting a plate glass having a thickness of 6 mm or more, which is called a special thick plate, first, the plate glass is placed on a table of a plate glass cutting machine, and a cutting line is cut with a cutter at a position to cut the plate glass. Next, the worker hammers along the cutting line of the plate glass and folds the plate glass from the cutting line by the operator's hand,
Cut the plate glass along the cutting line.

[0003]

However, there is a problem that a skilled worker is required to obtain a good break when the plate glass of the extra thick plate is folded by the hand of the worker. Further, there is a problem that cost cannot be reduced because of low productivity. Further, there is a problem in that the conventional cutting work depends on a skilled worker and automation cannot be achieved.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a plate glass cutting method and an apparatus therefor which do not require a skilled operator and can further reduce the cost and automate the process. To aim.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a method for cutting plate glass in which a plate glass having a cut line is cut along the cutting line, wherein one surface of the plate glass is cut. While abutting the pads on both sides of the cutting line position by aligning the center of the pair of pads to the cutting line position, abutting a cylindrical receiving rod at a position corresponding to the cutting line on the other surface of the plate glass, the pad It is characterized in that the plate glass on both sides of the cutting line position is fixed, and the plate glass is cut by bending the pad while sandwiching the plate glass with the pad and the receiving rod.

[0006]

According to the present invention, the foldable pad is brought into contact with both sides of the cut line on one surface of the plate glass, and the cylindrical receiving rod is brought into contact with the position corresponding to the cut line on the other surface of the plate glass. After the fastening is completed, the plate glass is sandwiched between the pad and the receiving rod, the pad is bent, and the plate glass is cut.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method and apparatus for cutting sheet glass according to the present invention will be described in detail below with reference to the accompanying drawings. As shown in FIG. 1, the plate glass cutting apparatus 10 is constituted by the apparatus main body 12, the suction pressing means 14, and the receiving rod 44 as main members.

The apparatus main body 12 stands on the side of the conveying line of the plate glass 20 conveyed in the direction of arrow A in FIG. 1, and the main body 12 is provided with a support 22 below the plate glass 20. A pair of support frames 24, 24 are provided above the. A screw jack box 26 is fixed on the support base 22, and a shaft (not shown) is slidably provided in the screw jack box 26 in the vertical direction. This shaft is connected to the servomotor 32 via a worm gear mechanism and a coupling in the screw jack box 26.

A plate 34 is attached to the upper end of the shaft so that the plate 34 can move up and down. Support rods 40, 40 are erected on the upper surface of the plate 34 via blankets 39, 39. Support rod 4
A receiving plate 42 is fixed to the upper ends of 0 and 40, and a semicylindrical receiving rod 44 is provided at the center of the receiving plate 42. The receiving rod 44 is arranged at a position corresponding to the cutting line of the glass 20.

Further, shafts 54A, 54A are provided laterally between the support frames 24, 24 of the main body 12. The shafts 54A, 54A have linear bearings 56A, 56
Plates 58A and 58A are provided via A ... The air cylinder 6 is attached to the plates 58A and 58A.
0A and 60A are provided orthogonally to the surfaces of the plates 58A and 58A. Pressing plates 62A and 62A are provided in parallel to the lower ends of the rods of the air cylinders 60A and 60A, respectively. Adsorption pads 64A, 64A are provided on the pressing plates 62A, 62A as pads for fixing plate glass, and holes (not shown) for sucking air are formed in the entire bottom surfaces of the adsorption pads 64A, 64A. A suction means (not shown) is connected to the suction pads 64A and 64A. Therefore, the suction pads 64A and 64A can adsorb the plate glass 20.

The pressing plates 62A and 62A are air cylinders 60.
The rods of A and 60A can be swung about the pins 68A and 68A (see FIG. 4). The operation of the plate glass cutting apparatus according to the present invention configured as described above will be described with reference to FIGS. First, in the previous step, plate glass 2
When the cutting line 20A is processed to 0, the plate glass 20 is conveyed, and when the cutting line 20A of the plate glass 20 is located right above the receiving rod 44, the servo motor 32 is driven to raise the shaft to move the receiving rod 44 to the plate glass 20. It contacts the lower surface of the cutting line 20A. At the same time, the air cylinder 60A above the plate glass 20,
60A is extended to lower the suction pads 64A and 64A,
The suction pads 64A, 64A are brought into contact with both sides of the cutting line 20A of the plate glass 20. As a result, both sides of the cut line 20A on the upper and lower surfaces of the plate glass 20 are held.

Next, the suction means is operated to operate the suction pad 64.
A and 64B adsorb both sides of the cut line 20A of the plate glass 20. Next, the servo motor 32 is operated to press the lower surface of the plate glass 20 with the receiving rod 44, and the air cylinder 60
By operating A and 60A, the upper surface of the plate glass 20 is pressed by the suction pads 64A and 64A. At this time, the suction pad 64A,
64A folds as shown in FIG. Therefore plate glass 2
0 is cut at the cutting line 20A.

The cylinders 60A and 60A are preferably changed according to the areas on both sides of the cutting line on the plate glass. That is, when the central position of the plate glass is cut, the pressure of the cylinder is uniform, but when the area on one side of the cutting line is small, the cylinder pressure of the smaller area is increased. In the illustrated example, the suction pad is used as the pad for fixing the plate glass, but it is not limited to this, and it is made of an elastic body such as rubber that does not have a plate glass adsorbing means or has a function of fixing the plate glass. Pads can also be used.

[0014]

As described above, according to the plate glass cutting method and the apparatus therefor of the present invention, the plate glass can be cut automatically, so that the manpower saving and the productivity improvement can be achieved. Therefore, the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a plate glass cutting apparatus according to the present invention.

FIG. 2 is a side view showing an operating state of the plate glass cutting apparatus according to the present invention.

FIG. 3 is a side view showing an operating state of the plate glass cutting device according to the present invention.

FIG. 4 is a side view showing an operating state of the plate glass cutting apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Plate glass cutting device 12 ... Main body, 14 ... Adsorption pressing means, 20 ... Plate glass, 20A ... Cutting line 44 ... Receiving rod 60A ... Air cylinder 64A ... Adsorption pad,

Claims (2)

[Claims] 1. A method of cutting a plate glass in which a plate glass having a cut line is broken along the cutting line, wherein a center portion of a pair of pads is aligned with a cut line position on one surface of the plate glass. While abutting pads on both sides, abutting a cylindrical receiving rod at a position corresponding to the cutting line on the other surface of the plate glass, fixing the plate glass on both sides of the cutting line position with the pad, the pad and the receiving rod A method of cutting a plate glass, which comprises cutting the plate glass by bending the pad while sandwiching the plate glass with the plate. 2. A plate glass cutting apparatus for folding a plate glass having a cut line by the cut line to cut the plate glass, the pad being capable of surface contact with one surface of the plate glass and being bendable at a central position, And a cylindrical receiving rod provided facing the pad and arranged at a position corresponding to a cutting line on the other surface of the plate glass, and bending and cutting the pad while the plate glass is sandwiched between the pad and the receiving rod. A plate glass cutting device characterized by: