JP2524249Y2 - Sheet glass unloading device in vertical polishing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for unloading a glass sheet in a vertical grinder for polishing four edges of the glass sheet.

[0002]

2. Description of the Related Art Conventionally, when polishing four edges of a sheet glass with a vertical grinder, the plate glass mounted on a loading pallet is obtained and inserted into the left end of the vertical grinder.

[0003] The plate glass inserted into the left end of the vertical grinder travels rightward by a conveyor, and the lower edge is polished by a rotating grindstone while traveling.

When the polished sheet glass arrives at the right end of the vertical grinder, it is manually picked up, turned 90 degrees, and supplied to the left end of the vertical grinder.

[0005] By repeating the above, the edges of the four sides of the plate glass are polished, and the polished plate glass arrived at the right end of the vertical polishing machine is manually picked up and mounted on a pick-up pallet.

[0006]

[Problems to be Solved by the Invention] According to the above-described polishing procedure, the sheet glass that has reached the right end of the vertical grinder is transported to the left end of the vertical grinder when it is obtained. Workers are required. For this reason, there has been a problem that labor costs are significantly increased.

Therefore, an object of the present invention is to provide a sheet glass unloading device which does not require an operator on the picking up side.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention conveys a sheet glass in an upright posture by a forward transport path and a sliding guide device on one side of the forward transport path. In the vertical grinder, which receives the back surface of the plate glass by the rotating grindstone in the middle of the forward side transport path and polishes the lower edge of the plate glass, leans against the side of the forward side transport path facing the surface of the plate glass. A return-side transport path for receiving and transporting the front side of the plate glass in the inclined posture by the sliding guide device is provided side by side, and the plate glass on the forward-side transport path is located just before the extreme end of the forward-side transport path. A configuration is adopted in which a transfer device is provided so as to supply the material on the row side transport path.

[0009]

The plate glass is supplied in a posture leaned by hand to the base end of the forward transport path.

[0010] The plate glass in the upright position on the forward transport path is transported while receiving the back surface by the sliding guide device.
The lower edge of the plate glass being conveyed is polished with a rotary grindstone.

The polished sheet glass is directed to the extreme end of the forward transport path.

When the sheet glass reaches the end of the forward transport path, the sheet glass is received by the transfer device that is on standby, and is delivered to the base end of the return transport path.

[0013] The plate glass in an upright posture, which has been delivered to the base end of the return path, is conveyed while receiving its surface by the sliding guide device, and the sheet glass reaching the extreme end of the return path is manually removed. With lowering, turn 90 degrees (so that the next polishing edge is lower), and then feed on the base end of the forward conveying path.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the accompanying drawings.

A shown in FIGS. 1 and 2 is a known vertical polishing machine.

The lower edge of the sheet glass a supplied in the upright position by the vertical polishing machine A is polished by placing the sheet glass on an upstream roller conveyor 2 (which drives each roller) forming a forward transport path 1. a, the lower and upper and lower surfaces of the sheet glass 3a are sandwiched and conveyed by the two intermediate belt conveyors 3 having the next forward side facing each other, and the sheet glass 3a is conveyed, and then the downstream roller conveyor 4 (each roller) During the transfer of the material, the sheet is conveyed while being sandwiched and conveyed by the middle belt conveyor 3.
The edge of the lower side of the plate glass a is polished by the rotary grindstones 5 arranged in series.

Further, the glass sheet a conveyed in the upright position is received by the sliding guide device 6 on one side of the forward conveyance path 1, that is, on the back surface of the glass sheet a.

The sliding guide device 6 includes a screen-like frame 7 and a multi-stage frame 7
And a rotor 8 which is supported at a predetermined interval along the entire length of the rotor.

Further, on one side of the forward transport path 1, that is, on the front side of the sheet glass a, there is provided a return transport path 9 parallel to the entire length of the forward transport path 1; In the illustrated case, the transport path 9 uses a roller conveyor 10 of a type that drives each roller, but a belt conveyor may be used in some cases.

A sliding guide device 6 similar to the sliding guide device 6 of the forward transport path 1 for receiving the surface of the sheet glass a is provided on one full length of the backward transport path 9.

Further, immediately before the end of the forward transport path 1,
A delivery device 11 that supplies the sheet glass a on the forward transport path 1 onto the base end of the return transport path 9 is provided.

The above-described delivery device 11 is, as shown in FIG.
A pin 1 is located below the forward transport path 1 and the return transport path 9.
Left and right rocking bodies 1 whose lower ends are rotatably supported via 2
3, a connecting member 15 whose both ends are rotatably connected to the upper ends of the two rockers 13 via pins 14, and a second member which is mounted on a support member 16 and whose tip is rotatably connected to one rocker 13. One cylinder 17, a column 18 whose lower end is rotatably supported via a pin 14 on the return path 9, and a plurality of columns 18 provided between upper and lower front surfaces of the column material 18 opposed to the back surface of the plate glass a. A frame is mounted so that a stepped suction cup 19, a second cylinder 21, which is installed on a stand 20 rising from above the connecting member 15 and whose tip is rotatably connected to the column member 18, and the column member 18 returning to the retreat standby position are accommodated. When the polished plate glass a of the lower edge reaches the extreme end of the forward transport path 1, the first cylinder 17 is formed.
Causes the rocking body 13 to rotate counterclockwise in FIG. Then, the column member 18 moves forward in the left direction in FIG.

At this time, since the inside of each suction cup 19 which comes into contact with the back surface of the plate glass a is sucked through a connection hose (not shown) immediately after the column member 18 advances, the plate glass a is sucked.

The plate glass a held on the column 18 via the suction cup 19 is received from the forward side transport path 1 as the column 18 advances, and is transferred onto the return side transport path 9. The column member 18 is tilted in the direction of the frame 7 of the return path 9 by the extension action of the second cylinder 21, so that the rotor 8 has the surface of the plate glass a.

Thereafter, the suction in each suction cup 19 is released, and
The sheet glass “a” is delivered to the return path 9.

The column material 18 after the delivery of the sheet glass a is raised by the contraction of the second cylinder 21 and is retracted to the standby position by the extension of the first cylinder 17. It may be delivered by a sliding clamp device (not shown).

The suction of the sheet glass a by the suction cup 19 detects, for example, the conveyance speed of the sheet glass a, and the bisector between the front and rear edges in the conveyance direction of the sheet glass a coincides with the center of the suction cup 19 and is sucked. The first cylinder 17 may be contracted as described above.

The sheet glass a delivered on the return path 9 is conveyed, and the sheet glass a reaching the extreme end of the return path 9 is manually removed and turned 90 degrees. It is supplied to the base end of the row side transport path 1.

As shown in FIG. 4, an arm 32 having a pivot 31 is protruded below the column member 18, a receiving roller 33 is provided at the tip of the arm 32, and a third cylinder is installed. When the distal end of the plate glass 34 is rotatably connected to the arm 32, the lower end of the plate glass a is received by the receiving roller 33 that has been lifted and stopped by the extension action of the third cylinder 34, and the plate glass a When the receiving roller 33 is lowered together with the arm 32 by contracting the third cylinder 34 after the delivery, it is possible to prevent the lower edge of the plate glass a and the receiving roller 33 from being caught when the column member 18 retreats.

[0030]

[Effect] Since the plate glass unloading device in the vertical polishing machine according to the present invention is configured as described above, the lower edge is polished and the plate glass reaching the extreme end of the forward side transport path is removed. It is only necessary to deliver the sheet glass reaching the extreme end of the return-side transport path by hand to the return-side transport path by the transfer device, and to manually supply the sheet glass to the forward-side transport path.

For this reason, the number of workers is reduced and
Polishing can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment according to the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a front view of the same.

FIG. 4 is an enlarged front view showing a main part of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS A Vertical grinder a Sheet glass 1 Forward side conveyance path 2 Upstream roller conveyor 3 Middle flow belt conveyor 4 Downstream roller conveyor 5 Rotating grindstone 6 Sliding guide device 7 Frame 8 Rotor 9 Return side conveyance path 10 Roller conveyor 11 Transfer device 12 Pin 13 Oscillator 14 Pin 15 Connecting member 16 Support member 17 First cylinder 18 Column material 19 Sucker 20 Stand 21 Second cylinder

Claims (1)

(57) [Scope of request for utility model registration] 1. A sheet glass in an upright posture is conveyed by an outgoing-side conveying path, and a sliding guide device on one side of the outgoing-side conveying path receives a back surface of the plate glass. In a vertical polishing machine for polishing a lower edge of a sheet glass with a rotating grindstone, a sliding guide device receives and conveys the front side of the sheet glass in a posture leaning on the side facing the surface of the sheet glass in the forward-side conveyance path. A line-side transport path is juxtaposed, and a delivery device for supplying the sheet glass on the forward-side transport path to the return-side transport path immediately before the extreme end of the forward-side transport path is provided. An unloading device for flat glass in a vertical grinder.