JPS60200834A - Apparatus for working glass - Google Patents

Abstract

PURPOSE:To reduce the size of an apparatus for working glass by placing a table so that it is freely brought close to and moved away from a turntable on which plate glass is fixed, arranging plural grindstone heads on the table, and turning one prescribed head among the heads to plate glass on the turntable. CONSTITUTION:The surface of a supporting plate 1 is provided with a turntable 2 on which plate glass is fixed, an arm 4 which is swung in the horizontal state on a vertical pivot 3 on the plate 1, and a cylinder 5 which swing the arm 4 and can bring it close to the turntable 2. Three grindstone heads 6a, 6b, 6c are attached to the tip of the arm 4 so that the positions are freely adjusted by rotation, and one prescribed head 6 among the heads 6a, 6b, 6c is turned to plate glass on the turntable.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a glass processing apparatus, and more particularly to a processing apparatus for automatically applying processes such as chamfering to the peripheral edge of a plate glass.

Temporary glass is used in various shapes for various purposes and fields, but in order to improve product value and create innovative designs, it is cut into particularly complex shapes. There is a tendency for irregularly shaped glass plates to be frequently used, and these irregularly shaped glass plates also require chamfering on their peripheries.

By the way, in order to chamfer the periphery of a glass plate, a rotating grindstone must be pressed against the periphery and moved, so in the case of irregularly shaped glass plates cut into complex shapes, it is not possible to uniformly chamfer the edges by hand. It was close to possible.

In addition, in order to grind plate glass with a whetstone, it is necessary to sequentially grind it with many different types of whetstones, from cutting to polishing, and processing these with a series of whetstones requires an extremely large space. Therefore, the work efficiency is also poor.

This invention was made in view of the above points, and it is an object of the present invention to provide a small and efficient processing machine that can uniformly and efficiently chamfer the bent portions of irregularly shaped plate glass with high precision. It is a purpose.

The structure of this invention is that a table that is given the power to constantly approach the rotary table that fixes the plate glass is arranged so that it can move forward and backward, and that a plurality of grindstone heads are rotatably attached to this table. A pair of copying rollers that come into contact with the edge of the plate glass and two types of grindstones are installed in the machine, and the vertical position and inclination of the grindstones can be adjusted freely.By rotating the rotary table, the grindstones are moved to the shape of the plate glass by the copying rollers. The periphery of the glass plate can be processed sequentially from rough cutting to polishing using each grinding wheel head.

Hereinafter, the present invention will be explained based on embodiments shown in the accompanying drawings.

1 and 2 show the overall shape of the glass processing machine.

In the figure, on a support plate 1, there is a rotary table 2 on which a plate glass is placed and fixed, an arm 4 that swings horizontally around a vertical support shaft 3 provided on the support plate, and an arm 4 that swings horizontally around a vertical support shaft 3 provided on the support plate. A cylinder 5 is provided that can give a motion and constantly draw the arm 4 toward the rotary table 2 side, and a plurality of grindstone heads 6 are attached to the tip of the arm 4 so that the position can be adjusted freely by rotation. There is.

As shown in FIG. 11, the rotary table 2 is attached to the upper end of a vertical rotary shaft 7 provided on the support plate 1, and is rotated by a reversible motor incorporated in the lower part of the support plate 1.

This rotary table 2 is driven by a limit switch 8 and a dog 9 so that reciprocating rotation at a fixed angle or continuous rotation can be freely selected. The outer panel 10 is fixed.

The table 11 attached to the tip of the arm 4 is rotatable together with the vertical shaft 12 by operating the /'% handle 13 as shown in FIG. By engaging with positioning holes 16 provided on the circumferential surface at 120° intervals, any one of the arms 17 provided at the top and protruding in three directions can be fixed at a position facing the rotary table 2.

The grindstone head 6 is attached to the tip of each arm 17 on the table 11, and by rotating the table 11, the necessary grindstone head 6 can be made to face the rotary table 2.

As shown in FIGS. 3, 4, and 5, the grindstone head 6 is mounted on an L-shaped support base 1 with a bearing 18 on the tip of an arm 17.
9 is held, and the support base 19 can be rotated about a shaft 20 or fixed by a locking mechanism 21.

A pair of copying rollers 22 that come into contact with the periphery of the glass plate A fixed on the rotary table 2 and a roller 23 that receives the lower surface of the glass plate A are pivotally installed at the tip of the horizontal portion of the support base 19.

Therefore, the grindstone head 6 facing the rotary table 2 is moved closer to the plate glass A by the contraction of the cylinder 5, and the copying roller 2 is moved as shown in FIG.
When the glass plate A is rotated with the roller 2 kept in pressure contact with the edge of the glass plate A at all times, the copying roller 22 follows the outer shape of the glass plate A, and the support base 19 rotates around the shaft 20.

A lift table 24 is attached to the upper end of the upright piece of the support table 19 so that it can move up and down along the guide mechanism 25 and adjust the inclination angle with the handle 26.
A fixed table 27 provided on the fixed side of 5 has a screw shaft 2 that raises or lowers the lifting table 24 by forward and reverse rotation by a motor 28.
It has 9 forces and 5 positions.

A cylindrical holder is fixed to the vertical surface of the lifting table 24, and a cylindrical shaft 31 rotatably held by this holder 30 is moved by a motor 32 attached to the upper horizontal piece of the lifting table 24 via a belt 33. A shaft body 34 is built into the cylindrical shaft 31, which is threaded in the vertical axial direction, rotates integrally with the cylindrical shaft 31, and is movable in the vertical axial direction by coupling the cylindrical shaft 31 with a key and a keyway. There is.

A flatness adjusting handle 36 connected to the upper end of the shaft body 34 via a rotary joint 35 is attached to the upper part of the lifting table 24, and at the same time the height of the entire lifting table 24 is adjusted by two motors, the shaft relative to the cylindrical shaft 31 is adjusted. The vertical position of the body 34 can be adjusted.

A ring-shaped grindstone 38 is fixed to a flange 37 provided at the lower end of the cylindrical shaft 31, and a ring-shaped grindstone 39 having a smaller diameter than the above-mentioned grindstone 3δ is fixed to the lower end of the shaft body 34 in a coaxial arrangement. The lower end grinding surfaces of the grindstones 38 and 39 are set so as to create a vertical difference by adjusting the vertical position of the shaft body 34.

As shown in FIGS. 3, 4, and 5, the guide mechanism 25 has a horizontal block 40 fixed to the upper end of the support base 19 with screws, and the position of the block 40 is adjusted using screws and long holes 41. The U-shaped part 42 is attached so that it can be freely moved,
An adjustment block 45 is attached to the U-shaped part shrine 42 using an arc-shaped long hole 43 and a screw 44 so that the rotation can be adjusted. It is composed of an adjusting screw 26 for changing the position, and a cylindrical holder '80 fixed to the adjusting block 45.

The above-mentioned guide mechanism 25 for the holder 30 allows the grindstone head 6 to be freely adjusted in angle in the front-rear direction at a position corresponding to the rotary table 2, and as shown in FIG. The angle θ between the polished surface and the surface of the glass plate A can be freely changed, and the chamfering angle with respect to the glass plate A can be freely selected.

The above angle setting is performed using the adjustment block 4 as shown in FIG.
5 and the pointer 4 attached to the block 40.
It can be read by a goniometer consisting of 7.

In addition, so that the height positions of both whetstones 38 and 39 can be visually checked,
A height indicator 48 interlocked with the screw shaft 29 through a gear mechanism is attached to each head.

In addition, in the case shown in the figure, the large-diameter whetstone 3B is the No. 1 whetstone, and the small-diameter whetstone 39 is the No. 2 whetstone, which has a finer grain size than the No. 1 whetstone, and is set so that it protrudes slightly lower than the No. 1 whetstone. be done.

FIG. 10 shows the cutting state of both grindstones 38 and 39.
After the coarse first whetstone 38 cuts the glass plate A, the fine second whetstone 39 finishes the cut surface, and the difference in the bottom surface of both whetstones 38 and 39 is determined by the second whetstone 3.
The depth of cut becomes 9.

Part of the periphery of both grinding wheels 38 and 39 passes between the copying rollers 22 on both sides as shown in FIG.
The cylinder shaft 31 and the shaft body 34 are held in the holder 30 with their vertical axes slightly inclined so that the portion passing between them is the lowest.

Therefore, even if the support stand 11 is rotated to follow the outer shape of the glass plate A by the copying roller 22, the cutting positions of both grindstones 38 and 39 relative to the glass plate A can be maintained in a constant relationship.

In the illustrated case, each of the grindstone heads 6 is a rough grinding head 6.
A, finishing head 6b, and polishing head 6C are installed, and two types of whetstones 3 and 39 are attached to each head, and the edges of the glass plate A are rough-cut to polished using the total water-type whetstones. It is designed to add chamfering and chamfering.

Incidentally, the polishing angle head 6C has a grinding wheel 31. as shown in FIG.
A nozzle 49 supplies a polishing agent such as cerium oxide to the cut surface 32 . To λ The processing apparatus of the present invention has the above-mentioned configuration, and after placing and fixing the plate glass A on the rotary table 2, the cylinder 5 is contracted, and the rough cutting head 6, in which the grindstones 38 and 39 rotate, is first turned on.
If a is brought close to the glass plate A, the copying roller 22 is brought into contact with the glass plate A, and rotation is given to the glass plate A,
As shown in FIG. 9, the periphery of the surface of the glass plate A is cut into an inclined surface at a constant angle from the outer shape.

The grinding wheel head 6a is cut by the first grinding wheel 38.
Since the second grindstone 39 cuts in, two types of cutting processes can be performed simultaneously and consecutively.

As mentioned above, when the rough cutting around the glass plate A is completed, the table 11 is separated from the glass plate A, the finishing head 6b faces the glass plate A, and the same cutting as above is performed, and then the polishing head 6 ( By cutting in the same manner, a chamfering process as shown in FIG. 11 is completed around the glass plate A.

Note that the processing on plate glass is not limited to chamfering on irregularly shaped plate glass, but may also be applied to circular or rectangular plate glass, and it can also be used not only for chamfering but also for cutting the peripheral end face of plate glass.

As described above, according to the present invention, ring-shaped grindstones are attached to each end of a sleeve sleeve and a shaft housed therein in a coaxial arrangement, and a plurality of grindstone heads are provided in which both grindstones have different grain sizes. Since the head is positioned so that the specified head faces the plate glass on the turntable, two types of cutting processes can be performed simultaneously using both grinding wheels, and the space required for arranging the grinding wheels for cutting the plate glass can be significantly reduced. , it becomes possible to downsize glass processing machines.

Furthermore, since each grindstone head can be cut simultaneously with two types of grindstones with different roughness, efficiency is improved by automating the cutting work, and various cutting conditions can be accommodated by adjusting the heights of both grindstones.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a glass processing machine using the grinding wheel head according to the present invention, Fig. 2 is a plan view of the same machine, Fig. 3 is a perspective view of the grinding wheel head part in the same as above, and Fig. 4 is also the head part. Fig. 5 is an exploded perspective view showing the guide mechanism of the above, Fig. 6 is a perspective view of the table portion, Fig. 7 is a perspective view of the table lock portion, and Fig. 8 is the relationship between the grindstone and the plate glass. 9 is a longitudinal sectional front view of the same, FIG. 10 is a perspective view of the same, FIG. 1.1 is a perspective view of an example of plate glass after processing, and FIG. be. 1 is a support plate, 2 is a rotary table, 4 is an arm, 5 is a cylinder, 6 is a grindstone head, 11 is a table, 19 is a support stand, 22 is a copying roller, 24 is a lifting table, 25 is a guide mechanism, 30 is a holder , 31 is a cylinder shaft, 34 is a shaft body, 36 is a height adjustment handle, 38 and 39 are grindstones, and A is a glass plate. Patent applicant: Toyo Sangyo Co., Ltd. Agent: Kama 1) Text 2 Figure 3 Figure 4 0 Figure 8 Figure 10

Claims (1)

[Claims] A table that can freely move toward and away from the rotating table on which the plate glass is placed and fixed is arranged, and multiple grindstone heads and copying rollers are mounted on this table so that the positions facing the rotating table can be freely selected by rotation. , each grinding wheel head has a double shaft that can freely rotate around a fulcrum on the table, a motor that rotates the double shaft, and a grain size grinder mounted coaxially on each end of the double shaft. A glass processing device consisting of ring-shaped grindstones with different sizes, and in which the grindstone head and copying roller are linked.