JPH04342431A - Cutting system for thick plate glass - Google Patents

Abstract

PURPOSE:To provide the title system designed to automatically and safely cut the selvages of a thick plate glass in high efficiency by combining a cutting device on an air table with a braking means, a positioning means and a sliding means and by putting a vibrational conveyor under an impactor. CONSTITUTION:A thick plate glass 4 having 8-22mm thickness with selvages is put on an air table 2 using e.g. an adsorptive hoist. This plate glass is then moved in X-direction through air delivery and the actuation of a moving conveyor 3, and stops when its front comes into contact with a positioning roller 10a. Then the plate glass 4 is moved in Y-direction and the positions for cutting wires are determined by positioning rollers 10b, 10c. The air delivery is then stopped, the rollers 10a, 10b, 10c are retracted or retreated, cutter heads 8, 8 on both sides of a traveling table 7 are moved along a guide 5 to specified position, thereby imparting the cutting wires. Then the cutting wires on the selvages of the glass plate 4 are moved to the upperside of an impactor 41 with an adsorptive pad 18, and when the impactor 41 is made to collide with the wires, the selvages are fallen through their own weight, thus glass cullet falling onto a vibrating conveyor 52.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device that automatically cuts off-line the edge of a glass plate having a thickness in the range of 8 mm to 22 mm, and also makes cuts to desired dimensions.

0002

[Prior Art] Conventionally, when cutting edges of a glass plate online, cutting lines were added to both edges of a continuous glass ribbon, and a conveying roller was placed below the edges, and a pushing roller was placed on the top surface of the glass. A device that cuts the ears by applying shearing force using a conveying roller and a pushing roller (
JP-A No. 48-15909), using a glass clipper that can be opened and closed, the glass ear part is clamped by a first driving means,
A device that moves the clipper using a second driving means and cuts the glass by applying tensile force and bending moment to the cutting part of the glass directly below the cutting line (Japanese Patent Application Laid-open No. 76318/1983)
The present applicant has also proposed, in Japanese Patent Application No. 1-241388, an edge cutting device for thick plate glass provided with a cut line, in which the edge is cut 20 minutes from the edge along a line immediately below the cut line.
An impact force is applied sequentially toward the edge from a position 0 to 1,000 mm away, and then an impact force is applied to the remaining part, and the impact force is directly below the cut line of the thick plate glass to which the cut line has been applied. Along these lines, we proposed a system in which a plurality of impactors are arranged in such a way that the order of their activation can be adjusted.

On the other hand, as an accessory device for making incisions, for example, Japanese Patent Application Laid-Open No. 3-32540 discloses that a first pressing member protruding from the table is moved into the table by a rectangular plate-shaped body that is slid onto the table. When the plate-like object passes through the first pressing member, the first pressing member pushed into the table returns to its original position, and the first pressing member pushes the rear surface of the plate-like object. The front surface of the body is pressed against the first positioning member, one side surface perpendicular to the front and rear surfaces of the plate-shaped body is pressed with the second pressing member, and the other side is pressed against the second positioning member to form the plate-shaped body. An apparatus for positioning a body is disclosed.

0004

[Problems to be solved by the invention] Japanese Patent Application Laid-Open No. 48-159
The method described in Publication No. 09 is difficult to cut when the object is thick plate glass because it is difficult to form vertical cracks called new.

[0005] In the publication of JP-A-52-76318, not only a strong clamping force is required for thick plate glass, but also a bending moment is applied to cut the glass without applying a new force, so it is difficult to cut thin plate glass. Even if it is possible to cut glass, it is difficult to cut thick plate glass along the cut lines, and there is a risk of large cracks inward from the cut lines.
No. 88 has a unique starting point and direction of movement, making it easy to cut the edges of plate glass with a thickness of 8 to 22 mm. It has not been possible to automate a series of combinations such as glass processing after folding, and even in positioning, for example, Japanese Patent Application Laid-Open No. 3-325
Even if it is combined with the device of Publication No. 40, only the cutting line is reached, and there is no subsequent processing, such as means for protruding the glass plate on both sides in the transverse direction on the table or means for moving it in the traveling direction over the stopper, etc. This required the incorporation of appropriate measures.

[0006]

[Means for Solving the Problems] In view of the above problems, the present invention aims to automate a series of steps from positioning to cullet processing for cutting including the edges of thick plate glass, by moving a floating glass plate with a brush. The glass plate is transported by a conveyor in the X direction, and a traveling table that runs along a guide extending in the In the plate glass cutting device for applying cut lines to the air table, a positioning means for a positioning roller that can freely move in and out of one of the end side in the X direction and both sides in the Y direction on the air table surface and come out and go in and out from the other side; sliding means for suction pads that protrude and retract from the surface of the air table and adsorb and move the lower surface of the glass plate; A means for breaking a plurality of impactors that can reciprocate in the X direction and tilt to one side in the Y direction, and preferably a vibrating conveyor for transporting the cullet of the glass plate below the impactors. Provide cutting equipment.

[0007] Thick plate glass refers to glass with a thickness of 8 to 22 mm, and product-sized glass is cut to desired dimensions using the device of the present invention, and then transferred to a continuous folding device using a moving conveyor. Alternatively, only the ears are broken and transferred to a continuous cutting device, for example, a water jet cutting device.

[0008]

[Operation] The glass plate placed on the air table is positioned in the Y direction by coming into contact with the positioning roller that protrudes above the table on the transfer conveyor, and protrudes to one side slightly outward from both sides of the table. Another positioning roller that protrudes from the other side of the positioning roller and moves laterally in the X direction moves the glass plate and positions it in the is applied, and the suction pad of the sliding means traverses the glass plate so that the edge of the edge protrudes from the edge of the air table, and the edge of the glass plate is struck by the impactor directly under the cut line provided on the edge. The glass cullet is broken and falls down, and the falling glass cullet is collected by a vibrating conveyor placed below the impactor.

[0009]

Embodiments Hereinafter, embodiments of the present invention will be explained in detail based on the drawings. Fig. 1 shows a perspective view of the entire device with some parts omitted, Fig. 2 is a side view with one of both sides in the Y direction shown in Fig. 1 omitted, and Fig. 3 shows the operation of the positioning roller and suction pad with some parts cut away. FIG. 4 is an assembled perspective view showing the positioning roller with a part cut out, FIG. 5 is an assembled perspective view showing the operation of the impactor with a part cut out, and FIG. 6 is a partially cut away assembled perspective view. FIG. 3 is a schematic perspective view illustrating the operation of the cutter head.

On the surface of the air table 2 disposed on the support column 1, movable conveyors 3 with brushes made of well-known chains are arranged in two rows with an interval between them. 4 by moving the conveyor forward and backward
A guide 5 and a rack 6 are installed on the sides of the support column 1 arranged on both sides of the air table 2 in the Y direction perpendicular to the conveyance direction, and a running platform is installed between the guides. 7 is constructed, but the traveling platform 7 runs along the guide 5.
The cutter head 8 is provided with a guide 5' and a rack 6' disposed above and below in parallel, and moves laterally in the Y direction along the guides to form a cut line on the glass plate 4 on the air table 2. The configuration of the traveling table 7 and the cutter head 8 is a well-known structure that takes numerical control into account, and the number of cutter heads 8 installed is two on one guide 5' and one rack 6'.
One unit is installed in the other guide 5' and rack 6'.

[0011] On the surface of the air table 2 or on both sides in the direction perpendicular to the X direction, there are disposed rollers that protrude above the surface of the table and serve as positioning means for setting the glass plate 4 at a predetermined position. , the positioning rollers are a pair of positioning rollers 10a that can be freely rotated horizontally and retracted from holes drilled on the surface of the air table 2 on the end side in the X direction;
A plurality of positioning rollers 10b and 10c which are vertically retractable and vertically rotatable from the table surface are arranged on the outside of both side ends of the air table 2 in the Y direction. The positioning roller 10a is moved in and out by vertical movement of a rod by a cylinder (not shown) provided on the underside of the air table 2, and the positioning roller 10b is fixed to a connecting shaft 12 that is pivotally supported by a bearing 11 placed on the underside of the air table 2. Although it is rotatably attached to the L-shaped arm 13, the end of the arm 15 that connects to the rod of the cylinder 14 is fixed to the connecting shaft, so that the cylinder 14 rotates and follows the connecting shaft 12. The L-shaped arm 13 also rotates together with the positioning roller 10b, and the roller moves in and out of the air table 2 surface following an arcuate trajectory. On the other hand, the positioning roller 10c is located on the air table 2 on the opposite side of the positioning roller 10b.
It appears and retracts above and below the table surface on the outside of the end, and traverses between the slits 16 provided in the Y direction between the moving conveyors 3 arranged in series on the surface of the air table, but its traversal is independent, Alternatively, the recess 17 can be moved up and down in the recess 17 connected to the slit to protrude and retract from the upper surface of the air table 2.
It follows the sliding means of the suction pad 18 which can freely move in the Y direction along the slit 16' provided therein.

The configuration includes a guide case 22 that holds the axis of the suction pad 18 on a base 21 which has a guide rail 19 disposed in the Y direction on the underside of the air table 2, which is movably held between wheels 20, and a guide case 22 that holds the axis of the suction pad 18. A cylinder 23 serving as a source of vertical movement is arranged in parallel, and the rod of the cylinder and the shaft end of the suction pad 18 are connected by a connecting plate 24. Further, the guide rail 19 is provided with a pedestal 27 in series with the base 21 equipped with a cylinder 26 which is held between wheels 25 and slides the rod in the Y direction as described above, and a guide rail 28 is mounted on the end of the cylinder rod with wheels 30. A side case 32 that supports the axis of vertical movement of the positioning roller 10c and a cylinder 33 that moves the positioning roller 10c up and down are installed in parallel on the slide base, and the rod of the cylinder 33 is and the shaft end of the positioning roller 10c are connected by a connecting plate 34, and the base 2 is movable horizontally along the guide rail 19.
1 and the pedestal 27 are each connected to a drive chain 35 attached to a servo motor (not shown) and a pulse motor installed therein.
, 35', and the connected slider base 31 also traverses along the guide rail 28 via the rod of the cylinder 26 set on the pedestal 27 that traverses.

A pressure accumulating chamber is provided on an angle bar 40 parallel to the edge of the table on the outside of both side ends of the air table 2 in the Y direction and slightly below the air table surface, and the compressed air in the chamber pushes the piston with force. Pneumatic impactor 41 that pushes up well
The angle bar is connected to the rod of the cylinder 42 that slides up and down and the arm 4.
A support base 48 that is movable in the Y direction by holding a rotating base 46 on which a rolling guide 45 is mounted on a shaft portion 44 that rotates via wheels 47 and holding the rolling guide between wheels 47; By fixing the support plate 51 that connects the rod of the installed cylinder 50 to the sliding base 49 which is fixed to the shaft part 44, the up and down tilting in the direction of the arrow shown in FIG. 2 and the reciprocating movement in the X direction are performed. It is something that can be done.

At the bottom of the impactors 41 which stand upright and are arranged in a vertical manner, there is a well-known vibrating conveyor 5 that conveys the impactors by vibration.
2, a protective plate 53 for preventing glass from scattering is disposed to close the space between the impactor 41 and the vibrating conveyor 52, and a movable cullet box 54 is disposed at the end of the vibrating conveyor 52.

The operation of the present invention will be explained below. When the glass plate 4 with ears is placed on the air table 2 using, for example, a suction hoist with the ears facing the folding means, it is moved in the X direction by the air discharge from the air table 2 and the operation of the moving conveyor 3. However, the front part of the glass plate 4 comes into contact with the positioning roller 10a that projects above the surface of the air table 2 and stops. At this point, the positioning roller 10c protrudes upward due to the operation of the cylinder 33, and the positioning roller 10c attached to the slide base 31 connected to the rod of the cylinder 26 in the protruding state is driven by a pulse motor (not shown) from the end of the slit 16 of the air table 2 to the set position. The movement stops when the cylinder 14 is activated, and the positioning roller 10b also protrudes upward from the edge side of the air table 2 and is on standby. Due to the storage operation, the positioning roller 10c opens the slit 16
The glass plate 4 is moved laterally in the Y direction along the Y direction toward the positioning roller 10b after contacting the side edge of the glass plate 4, and the other side edge of the glass plate is moved laterally in the Y direction. When the moving conveyor 3 is stopped, the positioning rollers 10a and 10b of the positioning means
, 10c, the three sides of the glass plate 4 are positioned at the origin.

Almost at the same time as the air table 2 stops discharging air, the positioning rollers 10a, 1 of the positioning means
0b is retracted, the cylinder 26 is activated and stopped, and the cylinder 33 is driven to retract the positioning roller 10c.
The cutter heads 8, 8 mounted on both sides of the carriage 7 are run along the guide 5' and stopped at a predetermined position, and then a cutter (not shown) is hung down to move the carriage 7 along the guide 5. If so, a cut line is provided at a predetermined position on the edge of the glass plate, and when the cutter head 8 and the carriage 7 move back to the starting point again, the impactor 41 is raised by the operation of the cylinder 42.

By the operation of the cylinder 23, the suction pad 18 of the sliding means rises and comes into contact with the lower surface of the glass plate 4, and after the suction action, the base 21 is moved along the guide rail 19 to a predetermined position, and the ear portion is moved. The cutting line reaches above the impactor 41.

During the reciprocating movement in conjunction with the cylinder 50, the impactors 41, which are arranged in parallel toward the cut line of the edge of the glass plate 4,
When each is actuated at the set timing, the impactor 41 collides with the glass plate 4 and the ears along the cut lines fall under their own weight, and the cut glass plate 4, that is, the glass cullet, is transferred to the vibrating conveyor 52. The cullet falls and is sent to the cullet box 54 by the conveyor without being scattered by the protection plate 53.

Subsequently, by moving the suction pad 18 horizontally, the ear portion of the glass plate 4 on the opposite side is also exposed to the impactor 41 disposed on the opposite side.
disconnected by. When the glass plate 4 whose edges have been cut is moved to its origin on the air table 2 again by the suction pad 18, the impactor 41 of the breaking means, which obstructs the traveling table 7 traveling in the X direction, is activated by the cylinder 42. The cutter head 8 is tilted toward the protection plate 53 and placed on standby, and the positioning means is operated again to position the cutter head 8. Then, by moving the cutter head 8 attached to the center of the carriage 7 and moving the carriage 7 in the X direction, a commercial size cutter is placed. Transfer to a commercial size folding device (not shown) which applies cut lines and distributes them in the X direction of the air table 2, or to another cutting device such as a water jet cutting device without applying commercial size cut lines. It can be transferred by the conveyor 3.

The operation of the positioning means and the sliding means is numerically controlled in the same way as the operation of the cutter head 8.

[0021]

Effects of the Invention The present invention provides a cutting device for imparting cut lines to a glass plate disposed on an air table, in which means for breaking the edge of the glass plate is disposed outside the edge of the air table. By combining a positioning means and a sliding means for moving the impactor to a predetermined position, and further arranging a vibrating conveyor below the impactor, the edges of thick plate glass can be cut automatically, efficiently and safely. be able to.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the entire device with some parts omitted.

FIG. 2 is a side view with one of both sides in the Y direction shown in FIG. 1 omitted;

FIG. 3 is an assembled perspective view illustrating the operation of the positioning roller and suction pad with a portion cut away.

FIG. 4 is an assembled perspective view showing the positioning roller with a portion cut away.

FIG. 5 is an assembled perspective view illustrating the operation of the impactor with a portion cut away.

FIG. 6 is a partially cutaway schematic perspective view illustrating the operation of the cutter head.

[Explanation of symbols]

2. Air table 3. Moving conveyor
4...Glass plate 7...Traveling base 8...Cutter head 10a, 10b, 10c...Positioning roller
18. Suction pad

Claims (2)

[Claims] Claim 1: A traveling platform that travels along a guide extending in the X direction on an air table for transporting a floating glass plate in the X direction by a moving conveyor with a brush; In a thick plate glass cutting device that applies cutting lines to the glass plate using a cutter head that runs horizontally in the Y direction, the cutter head appears on one side of the air table surface in the X direction and on both sides in the Y direction, and appears from the other side. a positioning means for a positioning roller which can be moved horizontally; a sliding means for a suction pad that protrudes and retracts from the surface of the air table and attracts the lower surface of the glass plate and causes the glass plate to move horizontally; A thick plate glass cutting device comprising a plurality of impactor breaking means arranged parallel to the edge and below the edge thereof and capable of reciprocating in the X direction and tilting to one side in the Y direction. 2. The plate glass cutting apparatus according to claim 1, further comprising a vibrating conveyor disposed below the impactor to transport the cullet of the glass plate.