JPH0533252Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention performs so-called chamfering, which simultaneously cuts the upper and lower corners of a glass plate, and finishes the vertical edges of the glass plate using the same device by switching operations. The present invention relates to a chamfering device for chamfering.

[Conventional technology]

When chamfering a glass plate with a grinding belt, the top and bottom corners of the edge of the glass plate are beveled and polished, and as a process before or after this process, a polishing machine with a grinding belt installed vertically is used. This is a two-step process in which the edge of the glass plate is brought into contact with the grinding belt at right angles to perform edge processing, and subsequently or in the previous step, the top and bottom corners of the glass plate are beveled by a thread processing machine installed separately. Processing may be performed. Japanese Patent Publication No. 54-5875 discloses such a thread surface processing machine that simultaneously chamfers the upper and lower corners of the end surface of the glass plate by bringing the ends of the glass plate into contact with the top and bottom of the grinding belts that intersect when viewed from the side. has been disclosed.

[Problem that the invention attempts to solve]

In the conventional processing mentioned above, two devices are required: one for surface processing to polish the upper and lower corners at the same time, and the other for edge processing to grind the edge of the glass plate by contacting it with a vertical grinding belt at right angles. Separate installation of small end face processing reduces equipment installation area, cost,
There were many problems such as small transportation of glass plates.

An object of the present invention is to provide a belt-type polishing device that eliminates the above-mentioned disadvantages and allows polishing of yarn surfaces and edges to be carried out efficiently in the same device.

[Means for solving problems]

The present invention is a belt-type polishing device that presses the end surface of a glass plate at the intersection of a pair of endless grinding belts that are wrapped around a driving roller and a driven roller and are parallel when viewed from above and intersect when viewed from the side. The axes of each of the drive rollers are arranged at upper and lower positions that coincide with the same vertical line, and a driven roller and an auxiliary roller are attached to the tip and the middle, and the end thereof is rotatable about the drive roller axis. Each arm to be attached to the shaft and a cylinder connected to the tip of each arm are provided on the upper and lower sides opposite to the axis of the drive roller, and the cross angle of rotation of the grinding belt by the cylinder is set in the range of 60 to 0 degrees. A belt-type grinding device is characterized by:

[Effect]

By expanding and contracting the piston rod of the cylinder connected to the tip of each arm, the angle of the intersecting grinding belts can be arbitrarily varied, and by bringing the end of the glass plate into contact with the intersection of the grinding belts, the vertical angle of the edge of the glass plate can be adjusted. At the same time, by easily processing the yarn surface at any angle and storing the piston rod in the cylinder, each interlocking arm becomes vertical, and the driven roller attached to the arm and the grinding belt wound around the driving roller also become vertical. If the belt is brought into contact with the vertical surface of the edge of the glass plate, the end surface can also be processed using the same device.

An embodiment of the present invention will be described below based on the drawings.

FIG. 1 shows an assembled side view of the belt-type polishing device of the present invention, and FIG. 2 shows a partially cutaway plan view of the same device.

A glass plate 2 placed on a fixed caster table 1 is movable back and forth and left and right by casters 3. A belt-type polishing device 9 is equipped with a driven roller 6 at the tip of a bracket 5 attached to an arm 4 , a driving roller 7 at the end of the arm 4 , and a grinding belt 8 wound between each roller in parallel.
A motor that aligns the axes of each drive roller 7 above and below a vertical line parallel to the legs of the caster table 1 when viewed from the side, and drives the grinding belt 8 above and below a frame 10 attached to the frame of the caster table 1. 11 and a drive bearing 12 that supports the drive roller 7
The cylinder 13 is seated in the form of a rotatable intermediate trunnion on the upper and lower frames 10 on the opposite side of the motor 11, and the tip of the piston rod 14 extending from the cylinder 13 is connected to the tip of the arm 4 . Arm 4 in linear motion
As the piston rod 14 expands and contracts, the belt becomes crossed or perpendicular.

When the glass plate 2 comes into contact with the grinding belt 8, the belt is deflected. In the crossed state, the belt is deflected by an auxiliary roller 15 provided between the driven roller 6 and the driving roller 7, and in the vertical state, by the auxiliary roller 15 provided on the caster table 1. This prevents the belt from being bent by the rollers 16.

Next, a cross-sectional view of the belt-type polishing device is shown in Figure 3.
A partial side view thereof is shown in FIG.

The arm 4 incorporates a ball spline 18 and a spring 19 into a spline shaft 17, inserts a spring base 20 that presses the spring 19 into the spline shaft 17, and connects the shaft end with a washer 21 and a nut 2.
Further, the spring base 20 is connected to the arm bearing box 23 by bolts 24, and the bulky base 25 is connected to the arm bearing box 23 by bolts 26, thereby making the arm 4 integral. The arm bearing box 23 can rotate around the outer periphery of the drive bearing box 27 fixed to the frame 10 with a bearing 28, and the drive bearing box 27, which becomes the axis of the bearing 28,
Drive shaft 29 connecting drive roller 7 and motor 11
The integrated structure of the arm 4 allows the arm 4 to rotate freely around the drive shaft 29. A cap 31 that connects the tip of the piston rod 14 and the connecting rod joint 30 is attached to the end of the spline shaft 17 by a pin 32, and a piston crank mechanism is provided for transmitting the linear motion of the piston rod 14 to the arm 4 as rotational motion. It is something.

Next, a rigid bracket 5 is screwed onto the side surface of the ball spline 18 assembled into the spline shaft 17 with a bolt 34, and the shaft 35 of the driven roller 6 is fixed in parallel with the drive shaft 29 at the upper end of the bracket 5. In addition, the outer periphery of the auxiliary roller 15 contacts the position where the end surface of the glass plate 2 and the grinding belt 8 come into contact with each other during thread surface processing, that is, the lower part of the bracket 5 and the inner side of the grinding belt 8 which is in contact with the glass plate 2.
The shaft 36 of the auxiliary roller 15 is fixed in parallel with the shaft 35.

Next, the operation of one embodiment of the present invention will be explained.

Spring 19 incorporated into spline shaft 17
Due to the reaction force of the compressive action of
Due to this action, the grinding belt 8 is constantly given tension.

In a belt-type polishing device 9 in which the minimum crossing angle of each grinding belt 8 is 60° and the extrusion amount of each piston rod 14 is 100%, when the motor 11 is started, the grinding belt 8, which is tensed by the starting force, is pulled down toward the drive roller 7. However, the force is buffered by the action of the spring 19, and the grinding belt 8 begins to rotate without applying any abnormal load to the shaft 35 of the driven roller 6, etc. The rotating direction of the crossed belt is such that the upper thread surface that contacts the glass plate 2 moves downward, and the lower thread surface moves upward. The auxiliary roller 15 is pushed through the belt to process the thread surface without causing the belt to bend. When performing end face processing after completing a series of thread face processing, the motor 11 is stopped and the cap 3 is turned off.
By inserting the entire length of the piston rod 14 connected to the cylinder 1 through the rod joint 30 into the cylinder 13, the linear movement of the piston rod 14 is caused by the intermediate trunnion type fixation of the cylinder 13 and the piston crank mechanism of the rod joint 30 . The grinding belts 8 rotate around the drive shaft 29, and as a result, each of the grinding belts 8 becomes vertical, and at the same time, the belt side that contacts the glass plate 2 in the crossed state rotates upward. By capturing the vertical state of the glass plate 2 and automatically performing a switching operation to reverse the rotation of the motor 11 based on the signal, all of the belts on the side of the pair of vertical belts 8 that contact the glass plate 2 are rotated downward. Move, caster 3
The edge of the upper glass plate 2 is also brought into contact with the grinding belt 8 and the roller 16 to process the end surface.

Furthermore, by stopping the expansion and contraction of the piston rod 14 midway within the non-operating range of the limit switch mentioned above, it is also possible to arbitrarily adjust the thread face angles of both the upper and lower sides and one side. A rounded finish is also possible by continuous expansion and contraction of a portion of the material, and by combining these, many finished states can be obtained.

[Effect of idea]

With the above-mentioned configuration, the angle of the glass plate thread surface can be easily adjusted by freely changing the intersecting angle of the grinding belt, and it is also possible to round the glass plate by continuously expanding and contracting the piston rod. By arranging the grinding belt vertically, it is possible to process the edge of a glass plate with the same device.Furthermore, the amount of grinding is large due to the pair of grinding belts, which improves work efficiency and is often used as a multifunctional device. It has the following effects.

[Brief explanation of drawings]

Fig. 1 is an assembled side view of a pair of belt-type polishing devices according to the present invention, Fig. 2 is a partially cutaway plan view of the same device, Fig. 3 is a sectional view of the belt-type polishing device constituting the present invention, and Fig. 4 The figure shows a partial side view. 2... Glass plate, 4 ... Arm, 9 ... Belt type polishing device, 6... Driven roller, 7... Driving roller, 8... Grinding belt, 13... Cylinder.

Claims (1)

[Scope of utility model registration request] In a belt-type polishing device that presses the end surface of a glass plate at the intersection of a pair of endless grinding belts that are wound around a driving roller and a driven roller and are parallel when viewed from above and intersect when viewed from the side, each of the above-mentioned drives in an crossed state The axes of the rollers are arranged at upper and lower positions that coincide with the same vertical line, and a driven roller and an auxiliary roller are attached at the tip and middle, and the ends of the rollers are rotatably attached around the drive roller axis. An arm and a cylinder connected to the tip of each arm are provided on the upper and lower sides opposite to the axis of the drive roller, and the intersection angle of rotation of the grinding belt by the cylinder is set to 60 to 60.
A belt-type grinding device characterized by a 0° range.