JPH06134659A - Plate glass carrying device - Google Patents

Abstract

(57) [Abstract] [Purpose] A glass sheet conveying device capable of easily adjusting the traveling speed of an endless belt and easily eliminating a difference in traveling speed between a pair of endless belts due to replacement of a drum or an endless belt. To provide. A glass plate conveying device 4 used in a glass plate grinding device 3 for grinding a peripheral edge 2 of a glass plate 1 is a glass plate 1
Endless belts 5 arranged to face each other so as to sandwich and transfer
And 6, drive-side and driven-side drums 7 to 10 on which the endless belts 5 and 6 are wound, and drive-side drums 7 and 8.
In order to rotate the endless belts 5 and 6 to rotate the electric motors 11 and 12 connected to the drive side drums 7 and 8 and the electric motors 11 and 12,
Output rotary shafts 13 and 14 of both electric motors 11 and 12
And a control device 15 capable of adjusting the rotation speed of the.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass plate conveying device suitable for a glass plate grinding device for grinding the periphery of a glass plate.

[0002]

2. Description of the Related Art Generally, a glass plate conveying apparatus of this type has a pair of endless belts arranged opposite to each other and a pair of endless belts which are wound around each other in order to sandwich and transfer a glass plate. Drive side and driven side drums, and a drive mechanism for rotating the pair of drive side drums to run a pair of endless belts. The drive mechanism of the glass sheet conveying apparatus generally transmits the drive force of one electric motor to the respective drive-side drums via a mechanical mechanism such as a coupling and a speed reducer, thereby allowing the pair of endless belts to be driven. Is running.

[0003]

By the way, in the driving mechanism of such a glass sheet conveying apparatus, for example, when one of the drums or the endless belt is replaced, a pair of endless members facing each other due to the difference in diameter, length or slippage. There is a case where the belts have different traveling speeds, slippage occurs between the belts and the glass plate, and the plate surface of the glass plate sandwiched by the pair of endless belts is damaged. Therefore, when replacing the drum or the endless belt, it is necessary to readjust the mechanical mechanisms such as the coupling and the speed reducer so that the running speeds of the pair of endless belts do not differ from each other. Readjustment of mechanical mechanism such as machine
This involves reassembly, which is extremely troublesome and requires a lot of time.

The present invention has been made in view of the above points, and it is an object of the present invention to easily adjust the traveling speed of an endless belt and to replace a pair of endless belts based on the replacement of a drum or an endless belt. An object of the present invention is to provide a glass plate transporting device capable of easily eliminating the difference in running speed between belts.

[0005]

According to the present invention, the above object is to provide a pair of endless belts arranged opposite to each other and a pair of endless belts, which are arranged so as to sandwich and transport a glass plate. A pair of drive side and driven side drums, and a pair of electric motors respectively connected to the pair of drive side drums to rotate the pair of drive side drums to run a pair of endless belts, This is achieved by a glass sheet conveying device including a control device that operates the pair of electric motors and that can adjust the rotation speed of at least one output rotation shaft of the pair of electric motors.

The electric motor in the present invention may be of any type, but is preferably a pulse motor so that the speed can be easily adjusted.

[0007]

In the present invention, the glass plate to be ground is clamped and conveyed by a pair of endless belts of the glass plate conveying device. During transportation, when the glass plate passes in front of the grinding wheel of the glass plate grinding device, the peripheral edge of the glass plate is sequentially ground by the grinding wheel. When the moving speeds of the pair of endless belts that sandwich and convey the glass plate are different from each other, the control device is operated to adjust the rotation speed of at least one output rotation shaft of the electric motor. As a result, the rotational speed of the drive drum that is also rotated by the rotation of the output rotary shaft of the electric motor is adjusted, and the moving speeds of the pair of endless belts are equalized.

The present invention will now be described in more detail based on the preferred embodiments shown in the drawings. The present invention is not limited to these specific examples.

[0009]

Concrete Example In the drawings, a glass plate conveying device 4 used in a glass plate grinding device 3 for grinding a peripheral edge 2 of a glass plate 1.
Is a pair of endless belts 5 and 6 arranged to face each other so as to sandwich and transport the glass plate 1, and a pair of drive side and driven side around which the pair of endless belts 5 and 6 are respectively wound. In order to rotate the drums 7, 8 and 9, 10 and the pair of drive-side drums 7 and 8 to run the pair of endless belts 5 and 6, a pair of drums connected to the pair of drive-side drums 7 and 8 respectively. Of the electric motors 11 and 12 of FIG.
At least one of the output shafts 1 and 12, in this example, a control device 15 capable of adjusting the rotational speeds of both output rotary shafts 13 and 14 is provided.

In addition to the glass plate conveying device 4, the glass plate grinding device 3 of this embodiment has a grinding head 22 for rotating the grinding wheel 21 and an angle for adjusting and setting the contact angle of the grinding wheel 21 to the glass plate 1. A setting device 23, an inlet conveyor 24 that carries the glass sheet 1 to be ground between the endless belts 5 and 6, an outlet conveyor 25 that takes out the ground glass sheet 1 sent from the endless belts 5 and 6, and a glass An endless belt 5 as a pressing conveyor and an endless belt 6 as a reference conveyor depending on the thickness of the plate 1.
And a width adjusting device 26 for adjusting the distance between

The output rotary shafts 13 and 14 of the electric motors 11 and 12 are connected to planetary gear units 31 and 32 functioning as a harmonic reducer, and the output rotary shafts are connected via the planetary gear units 31 and 32. 13 and 1
Reference numeral 4 is connected to drive drums 7 and 8 rotatably mounted on the frame 33, respectively. In this example, pulse motors are used as the electric motors 11 and 12.

The grinding head 22 comprises an electric motor 42 mounted on a base 41, and the grinding wheel 21 is mounted on the output rotary shaft of the motor 42. A suspension member 43 is attached to the base 41, and an arcuate tip end 44 of the suspension member 43 is slidably mounted in an A direction on an upper surface of an arcuate bearing 45 formed on the frame 33. As a result, the base 41 is suspended by the arcuate bearing 45 via the suspension member 43 so as to be swingable in the A direction.

The angle setting device 23 includes a lower frame 33.
A bevel gear 53 rotatably supported on the lower frame 33 via a shaft 52, a screw shaft 55 having a bevel gear 54 meshing with the bevel gear 53 at one end, and a screw shaft. And a nut member 56 that is screwed to 55 and rotatably attached to the base 41. The output rotation shaft 57 of the electric motor 51 is a pulley of the bevel gear 53 via a pulley 58 and a belt 59. (Not shown)
When the output rotary shaft 57 is rotated, the bevel gear 53 is rotated through the pulley 58, the belt 59 and the pulley of the bevel gear 53, and the rotation of the bevel gear 53 rotates the screw shaft 55. As a result, the nut member 56 is moved, and thereby the base 41 is rotated in the A direction. Base 4
By rotating 1 in the A direction, the contact angle of the grinding wheel 21 with respect to the glass plate 1, that is, the chamfer angle is adjusted and set. The inlet conveyor 24 includes an endless belt 65 that is wound around a pair of pulleys (not shown), and an electric motor 66 that has an output rotation shaft connected to one pulley.
The endless belt 65, which is driven by the operation of the electric motor 66,
The glass plate 1 with the peripheral edge 2 placed thereon is attached to the endless belt 5
And between 6 and 6. The outlet conveyor 25 is formed in the same manner as the inlet conveyor 24, and the endless belt 72 that is run by the operation of the electric motor 71 of the outlet conveyor 25 is the peripheral edge 2 of the glass sheet 1 sent from between the endless belts 5 and 6. Place on top and carry out.

The width adjusting device 26 is mounted on the frame 33 so as to be slidable in the B direction, a pair of sliders 81, a lateral member 82 attached to the slider 81, and a lateral member 82. The long belt support plate 83 that comes into contact with the frame 33 is rotatably supported by the frame 33.
A rotating shaft 86 to which bevel gears 84 and 85 are fixed, and bevel gears 87 and 88 that mesh with the bevel gears 84 and 85, respectively.
And a pair of adjusting screw members 89 each having one end thereof, and by rotating the rotating shaft 86 by rotating the handle 90 fixed to one end of the rotating shaft 86, the bevel gears 84 and 85 meshed with each other. In addition, the respective adjusting screw members 89 are rotated via the bevel gears 87 and 88. When the adjusting screw member 89 is rotated, the pair of sliders 81 move to B
Slides in the direction on the frame 33, which adjusts between the endless belts 5 and 6. A lateral member 95 is fixedly provided on the frame 33 on the endless belt 5 side,
A long belt support plate 96 that is in contact with the endless belt 5 is attached to the lateral member 95.

The control device 15 has an adjusting knob on its control panel so that the rotating speeds of the rotating shafts 13 and 14 can be adjusted. By rotating the adjusting knob, the rotating speeds of the rotating shafts 13 and 14 can be adjusted. As a result, the traveling speeds of the endless belts 5 and 6 can be substantially synchronized and equalized.

The glass plate transporting device 4 formed as described above operates as follows. The endless belts 5 and 6 running in the C direction by the operation of the motors 11 and 12 sandwich the glass plate 1 to be ground from the inlet conveyor 24 and transfer it to the outlet conveyor 25. During this transfer, the grinding wheel 21, which is rotated by the operation of the motor 42, comes into contact with the rim 2 of the incoming glass plate 1 and chamfers the rim 2 to form a chamfered surface on the rim 2 of the glass plate 1. The endless belts 5 and 6 further convey the glass plate 1 having the chamfered surface and convey it to the outlet conveyor 25. The outlet conveyor 25 supports the peripheral edge 2 of the incoming glass plate 1 and carries the glass plate 1 out from between the endless belts 5 and 6.

By the way, the traveling speed of the endless belt 5 becomes smaller than that of the endless belt 6 due to the slippage of the endless belt 5 with respect to the driving drum 7, and the endless belts 5 and 6 are not synchronized with each other, so that the endless belt 5 does not travel. 5 or the glass plate 1 or between the endless belt 6 and the glass plate 1 causes slippage, which may damage the surface of the glass plate 1 by the endless belts 5 or 6, The control knob of the control device 15 is operated so that the endless belt 5 and the endless belt 6 are synchronously run at the same speed.

As described above, in the glass plate conveying device 4, the endless belt 5 and the endless belt 6 can be easily adjusted so as to travel at the same speed in synchronization with each other. It is possible to eliminate scratches on the surface and easily provide a chamfered glass plate having excellent quality.

[0019]

As described above, according to the present invention, since the control device capable of adjusting the rotation speed of at least one output rotary shaft of the pair of electric motors is provided, the traveling speed of the endless belt can be easily adjusted. It is possible to easily eliminate the difference in the traveling speed of the pair of endless belts due to the replacement of the drum or the endless belt, and it is possible to prevent the surface of the glass plate from being scratched due to the difference in the traveling speed. An excellent chamfered glass plate can be easily provided.

[Brief description of drawings]

FIG. 1 is a cross-sectional explanatory view around a drive drum of a preferred specific example of the present invention.

FIG. 2 is a cross-sectional explanatory view near the grinding head of the specific example shown in FIG.

3 is a plan view of the specific example shown in FIG. 1. FIG.

[Explanation of reference numerals] 1 glass plate 3 glass plate grinding device 4 glass plate conveying device 5,6 endless belt 7,8 drive side drum 9,10 driven side drum 11,12 electric motor 15 controller

Claims (2)

[Claims] 1. A pair of endless belts arranged to face each other for nipping and transporting a glass plate, and a pair of driving-side and driven-side drums around which the pair of endless belts are wound, respectively. In order to rotate the pair of drive-side drums and run the pair of endless belts, a pair of electric motors respectively connected to the pair of drive-side drums and a pair of electric motors are operated, and a pair of electric motors are driven. A glass plate transporting device comprising: a control device capable of adjusting the rotational speed of at least one output rotary shaft of a motor. 2. The glass sheet conveying device according to claim 1, wherein the pair of electric motors are pulse motors.