JP2003266306A - Grinding method for glass plate and its device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grinding method for a glass plate and its device which can grind a glass plate while suppressing a rise in the temperature of the glass plate and a grinding wheel. <P>SOLUTION: This grinding device for a glass plate is provided with the grinding wheel 2, a rotating means 3 for rotating the grinding wheel 2, a blowing means 7 for blowing out a coolant 6 toward a portion P2 on an outer circumferential face 5 away from a portion P1 on the outer circumferential face 5 of the grinding wheel 2 in contact with the glass plate 4 so as to have the coolant 6 adhere to the portion P2, a moving means 8 for moving the grinding wheel 2 and the blowing means 7 in the X direction and the Y direction crossing the X direction, and a turning means 9 for turning the blowing means 7. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for grinding a glass plate used for automobiles, general buildings and the like.

[0002]

In this type of glass plate grinding apparatus, for example, a grinding wheel is rotated by the operation of an electric motor and brought into contact with the peripheral edge of the glass plate to grind the glass plate. ing.

By the way, when a glass plate is ground by the above-described glass plate grinding apparatus, so-called frictional heat is generated in the grinding wheel and the glass plate, and these temperatures rise. Here, for example, when a large amount of glass plates are ground in a short time by the glass plate grinding apparatus as described above, the temperatures of the glass plates and the grinding wheel rise rapidly. Therefore,
In the glass plate to be ground, so-called burning due to melting of the glass plate and so-called cracking due to thermal stress due to rapid temperature change are likely to occur, and the grinding wheel has a low hardness, so There are various adverse effects such as a decrease in force and accelerated wear.

The present invention has been made in view of the above points, and an object of the present invention is to provide a glass plate grinding method and a glass plate grinding method capable of grinding a glass plate while suppressing an increase in temperature of the glass plate and the grindstone. To provide the device.

[0005]

According to a first aspect of the present invention, there is provided a method for grinding a glass plate, which comprises rotating a grindstone and bringing the outer peripheral surface of the grindstone into contact with the glass plate to grind the glass plate. A method for grinding a glass plate, in which a cooling liquid is jetted toward another part of the outer peripheral surface of the grindstone that is distant from the part of the outer peripheral surface of the grindstone that contacts the glass plate, and the cooling liquid is supplied to the other part. Including doing.

According to the method for grinding a glass plate of the first aspect, the cooling liquid is jetted toward the other part of the outer peripheral surface of the grindstone away from the part of the outer peripheral surface of the grindstone contacting the glass plate, Since the cooling liquid is supplied to other parts, the grindstone can be cooled in advance, and thus a large amount of glass plates can be ground in a short time while suppressing the temperature rise of the glass plate and the grindstone. .

In the method for grinding a glass plate according to the second aspect of the present invention, in the method according to the first aspect, the other part of the grindstone is provided so that the desired amount of the cooling liquid to be supplied remains to the part in contact with the glass plate. The cooling liquid is jetted toward. According to the grinding method of the second aspect, as a result that a desired amount of the supplied cooling liquid remains up to the portion in contact with the glass plate, the friction liquid in the portion of the grindstone in contact with the glass plate can also be absorbed by the cooling liquid. .

In the glass plate grinding method of the third aspect of the present invention, in the method of the first or second aspect, another cooling liquid is applied to the surface of the glass plate, and the other cooling liquid is added to the glass plate. It is jetted so as to flow toward the portion of the outer peripheral surface of the grindstone that contacts the glass plate on the surface of. According to the grinding method of the third aspect, as a result of another cooling liquid flowing on the surface of the glass plate toward the portion of the outer peripheral surface of the grindstone contacting the glass plate, the portion of the glass plate contacting the grindstone and its vicinity The heat stored in the can be absorbed by the cooling liquid.

The glass plate grinding apparatus according to the first aspect of the present invention comprises a grindstone, a rotating means for rotating the grindstone, an outer peripheral surface of the grindstone apart from a portion of the outer peripheral surface of the grindstone contacting the glass plate. And a jetting means for jetting the cooling liquid toward the other part and attaching the cooling liquid to the other part.

According to the glass plate grinding apparatus of the first aspect, the cooling liquid is jetted toward the other part of the outer peripheral surface of the grindstone which is distant from the part of the outer peripheral surface of the grindstone contacting the glass plate, Since the jetting means for supplying the cooling liquid to other parts is provided, the grindstone can be cooled in advance, and thus a large amount of glass plates can be shortened while suppressing the temperature rise of the glass plate and the grindstone. Can be ground in time.

In the glass plate grinding apparatus of the second aspect of the present invention, in the grinding apparatus of the first aspect, the jetting means has a desired amount so that the cooling liquid to be supplied remains in a desired amount up to the portion in contact with the glass plate. The cooling liquid is spouted toward other parts of the grindstone. According to the grinding apparatus of the second aspect, as a result that the cooling liquid to be supplied remains in a desired amount up to the portion in contact with the glass plate, it is possible to also absorb the frictional heat in the portion of the grindstone in contact with the glass plate by the cooling liquid. .

In the glass plate grinding apparatus according to the third aspect of the present invention, in the grinding apparatus according to the first or second aspect, the jetting means applies another cooling liquid to the surface of the glass plate. The cooling liquid is jetted so as to flow on the surface of the glass plate toward a portion of the outer peripheral surface of the grindstone that contacts the glass plate. According to the grinding device of the third aspect, as a result of the other cooling liquid flowing toward the portion of the outer peripheral surface of the grindstone contacting the glass plate on the surface of the glass plate, the portion of the glass plate contacting the grindstone and its vicinity The heat stored in the can be absorbed by the other cooling liquid.

In the glass plate grinding apparatus of the fourth aspect of the present invention, in the grinding apparatus of any one of the first to third aspects, the jetting means includes an enclosure surrounding the peripheral edge portion of the other part of the grindstone. , And a cooling liquid supply passage provided in this enclosure. According to the grinding device of the fourth aspect, the cooling liquid can be effectively supplied to the peripheral portion of the other part of the grindstone by the cooperation of the enclosure and the cooling liquid supply passage.

In the grinding apparatus according to the fourth aspect, the enclosure is arranged so as to surround the peripheral edge of the grindstone at a position where it does not come into contact with the glass plate, as in the grinding apparatus for the glass sheet according to the fifth aspect of the present invention. Is preferred.

Further, the enclosure is, like the glass plate grinding apparatus of the sixth aspect of the present invention, a concave portion arranged so as to cover the peripheral portion of the other part of the grindstone, and is arranged in this concave portion. In addition, it may be provided with an ejection port from which the cooling liquid from the cooling liquid supply passage is ejected.

Further, the enclosure is preferably a concave portion and other portions of the grindstone due to the rotational force applied to the grindstone by the rotating means, like the glass plate grinding apparatus of the seventh aspect of the present invention. And a regulation plate for regulating the outflow amount of the cooling liquid flowing out from the space defined by the peripheral edge portion. According to the grinding apparatus of the seventh aspect, it is possible to collect and retain the cooling liquid in the space in advance by the regulation plate, and the retained cooling liquid is applied to the peripheral portion of the grindstone at other portions. It is possible to reliably supply the air, and it is possible to prevent the air flow that occurs with the rotation of the grindstone, and to prevent excessive scattering of the cooling liquid.

The glass plate grinding apparatus of the present invention may be provided with moving means for moving the grindstone and the jetting means, like the grinding apparatus of the eighth aspect thereof, and of the ninth aspect thereof. Like a grinding machine, it may be provided with a turning means for turning the ejection means.

Next, the embodiment of the present invention will be described in more detail based on the preferred examples shown in the drawings. The present invention is not limited to these examples.

[0019]

1 to 7, a glass plate grinding apparatus 1 of the present embodiment comprises a grindstone 2, a rotating means 3 for rotating the grindstone 2, and an outer peripheral surface of the grindstone 2 which abuts on a glass plate 4. 5
The jetting means 7 for jetting the cooling liquid 6 toward the portion P2 of the outer peripheral surface 5 away from the portion P1 and supplying the cooling liquid 6 to the portion P2, the grindstone 2 and the jetting means 7 in the X direction and the X direction The moving means 8 for moving in the Y direction orthogonal to each other and the turning means 9 for turning the jetting means 7 are provided.

The whetstone 2 containing diamond abrasive grains is
It is formed of an annular body, and is fixed to one end of the output rotary shaft 21 of the electric motor 20 at the center thereof.

The rotating means 3 is provided with an electric motor 20 and is adapted to rotate the grindstone 2 in the C direction about the rotation axis of the output rotation shaft 21 by the operation of the electric motor 20.

The jetting means 7 has a surrounding body 26 surrounding the peripheral edge portion 25 of the portion P2 of the grindstone 2, a support body 27 supporting the surrounding body 26, and a cooling liquid provided on the surrounding body 26 and the support body 27. Supply path 28 (hereinafter referred to as "supply path 28")
A pipe 31 communicating with the supply passage 28, a feeding means (not shown) for feeding the cooling liquid 6 into the supply passage 28 via the pipe 31, and a cooling liquid with respect to one surface 32 of the glass plate 4. 6
And a jetting device 33 for jetting the cooling liquid 6 on the surface 32 of the glass plate 4 toward the portion P1.

When the part P1 is in contact with the glass plate 4, the enclosure 26 arranged at a position where it does not contact the glass plate 4 has a concave portion 40 arranged so as to cover the peripheral edge portion 25.
And a hollow portion 42 disposed in the concave portion 40 and from which the cooling liquid 6 is jetted from the supply passage 28, a hollow portion 42 communicating with the jet outlet 41 and the hollow portion 63, and the rotating means 3. Due to the rotational force in the C direction applied to the grindstone 2, the outflow amount of the cooling liquid 6 that flows out from the space 43 defined by the concave portion 40 and the peripheral edge portion 25 as the grindstone 2 rotates in the C direction is restricted. And a regulation plate 44.

The concave portion 40 has inner surfaces 50 and 51 facing each other, and a side inner surface 5 connected to the inner surfaces 50 and 51, respectively.
It is formed from 2. The inner side surface 52 is arranged so as to face the portion P2.

The jet port 41 is provided with the cooling liquid 6 from the supply passage 28.
Is disposed on the inner side surface 52 so as to be ejected toward the portion P2 and communicates with the supply path 28 via the hollow portion 42.

The space 43 has inner surfaces 50 and 51, a side inner surface 52, an outer peripheral surface 5, one surface 55 of the grindstone 2 at the peripheral edge portion 25, and the other surface 56 of the grindstone 2 facing the surface 55.
And the inner surface 57 of the regulation plate 44.

In this example, the regulation plate 44 is arranged on the enclosure 26 so that the width of the gap 58 between the end surface 60 and the outer peripheral surface 5 is about 2 mm.

Freely rotatable base 10 via bracket 29
In this example, the support body 27 supported by 3 is formed so as to extend along the outer peripheral surface 5 of the grindstone 2, and one end 6 of the support body 27 is formed.
The enclosure 26 is supported on one side. The support body 27 is arranged so that the other end 62 side thereof is located on the surface 32 of the glass plate 4. The support 27 includes a hollow portion 42 of the enclosure 26 and a hollow portion 63 communicating with the tube 31. The tube 31 is attached to the other end 62 of the support 27.

The supply passage 28 has the above-mentioned hollow portions 42 and 63.
The cooling liquid 6 is fed into the supply passage 28 from the feeding means through the pipe 31.

The jetting device 33 is arranged on the other end 62 side of the support body 27, and the cooling liquid 6 from the supply passage 28 is applied to the portion P1.
It is provided with a plurality of ejection ports 70 that eject toward the surface 32 of the glass plate 4 in the vicinity. Each of the plurality of ejection ports 70 communicating with the hollow portion 63 has a direction in which the cooling liquid 6 is ejected,
The support 27 is provided so as to be inclined toward the side of the portion P1.

According to the jetting means 7 described above, the cooling liquid 6 is sent from the sending means to the supply path 28 through the pipe 31, so that the cooling liquid 6 is jetted from the jet outlets 41 and 70.
The cooling liquid 6 ejected from the ejection port 41 is supplied to the portion P2, and the cooling liquid 6 ejected from the ejection port 70 is supplied to the glass plate 4.
The surface of the whetstone 2 and the glass plate 4 are cooled by supplying to the surface 32.

The moving means 8 moves the grindstone 2 and the jetting means 7 in the X direction.
It is provided with an X-direction moving device 80 for moving in the direction and a Y-direction moving device 81 for moving the grindstone 2 and the jetting means 7 in the Y direction.

The X-direction moving device 80 is rotatably supported by the upper frame 82 via bearings 84 at both ends and an electric motor 83 attached to the upper frame 82. One end of the output rotating shaft of the electric motor 83. Pulley, belt, etc. 85
Ball screw shaft 8 extending in the X direction connected through
6, a slider 87 to which a nut screwed to the ball screw shaft 86 is fixed, and a pair of guide rails attached to the upper frame 82 and extending in the X direction. The guide rail 88 guides the movement of the slider 87 in the X direction. The grindstone 2 and the ejection means 7 are attached to the slider 87 via the attachment body 105, the rotary shaft 101, the swivel base 103, and the like.

The X-direction moving device 80 rotates the ball screw shaft 86 via the pulley, belt, etc. 85 by the rotation of the output rotary shaft thereof by the operation of the electric motor 83, and the ball screw shaft 86 rotates to rotate the ball screw shaft 86. The slider 87 to which the nut screwed with the screw shaft 86 is fixed is moved in the X direction. As a result, the slider 87 is attached to the mounting body 105 and the rotary shaft 101.
The grindstone 2 and the jetting means 7 attached via the above and the like are moved in the X direction with respect to the glass plate 4.

The Y-direction moving device 81 is rotatably supported by the electric motor 91 mounted on the base 90 and bearings 92 at both ends on the base 90, and one end of which is an output rotary shaft of the electric motor 91. A ball screw shaft 93 extending in the Y direction, a slider 94 to which a nut screwed on the ball screw shaft 93 is fixed, and a slider 94 movably fitted in the Y direction. The guide rail 95 is provided with a pair of attached guide rails 95 extending in the Y direction and an adsorption support base 97 that adsorbs and supports the other surface 96 of the glass plate 4 fixed to the slider 94. The movement of the slider 94 in the Y direction is guided.

The Y-direction moving device 81 is operated by the electric motor 91 to rotate the output rotary shaft of the electric motor 91.
Is rotated, and the ball screw shaft 93 is rotated to move the suction support base 97 in the Y direction together with the slider 94 to which the nut screwed with the ball screw shaft 93 is fixed. As a result, the glass plate 4 supported by the suction support base 97 is moved in the Y direction with respect to the grindstone 2 and the ejection means 7.

The turning means 9 includes an electric motor 100, a rotary shaft 101 having one end connected to the output rotary shaft of the electric motor 100 and extending in the Z direction, and a holding member 102 for holding the other end of the rotary shaft 101. The swingable base 10 mounted on the body 102 and mounted with the electric motor 20
3 and the electric motor 100 are attached,
An attachment body 105 that rotatably supports the rotating shaft 101 via a bearing 104 is provided, and the attachment body 105 is fixed to a slider 87. The electric motor 20 is attached to the swivel base 103 so that the rotation shaft center of the output rotation shaft 21 of the electric motor 20 is located on the extension line of the rotation shaft center of the rotation shaft 101.

The turning means 9 rotates the rotary shaft 101 by the operation of the electric motor 100, and the rotation of the rotary shaft 101 causes the electric motor 2 to pass through the sandwiching body 102 and the swingable base 103.
By turning 0, the enclosure 26 attached to the electric motor 20 via the support body 27 or the like is kept at a predetermined angular position with respect to the edge 120 of the glass plate 4 to be ground. It is designed to rotate so that it is located.

Hereinafter, the grinding operation of the glass plate 4 by the glass plate grinding apparatus 1 of this example will be described. First, the grindstone 2 is rotated in the C direction by the operation of the electric motor 20, and the rotated grindstone 2 is moved in the X direction. The movement device 80 and the Y direction movement device 81 move the glass plate 4 in the X direction and the Y direction to bring the outer peripheral surface 5 of the grindstone 2 into contact with the edge 120 of the glass plate 4 to be ground. Here, the jetting means 7 is moved in the X direction and the Y direction together with the movement of the grindstone 2 in the X direction and the Y direction by the X direction moving device 80 and the Y direction moving device 81, and when the grindstone 2 contacts the glass plate 4. Then, the cooling liquid 6 fed from the feeding means is jetted from the jet outlets 41 and 70, respectively, and is supplied to the portion P2 of the grindstone 2 and the surface 32 of the glass plate 4.

Next, the X-direction moving device 80 and the Y-direction moving device 81 are used to support the grindstone 2 and the support 27 of the ejection means 7.
And the enclosure 26 is moved along the edge portion 120 of the glass plate 4, and the cooling liquid 6 supplied to the portion P2 is moved to the portion P.
1, so that the surrounding body 26 is rotated by the swiveling means 9 so that the surrounding body 26 has the edge portion 12 of the glass plate 4 to be ground.
It is turned so as to be positioned at a predetermined angle position with respect to 0. The outflow amount of the cooling liquid 6 flowing out from the space 43 is regulated by the regulation plate 44 so that the cooling liquid 6 is not excessively scattered.

As described above, in the glass plate grinding apparatus 1 of this embodiment, the grindstone 2 that abuts the glass plate 4 and the jetting means 7 jetting the cooling liquid 6 are moved along the edge portion 120. The glass plate 4 and the grindstone 2 are ground while being cooled. Further, according to the grinding device 1, since the cooling liquid 6 is supplied to the portion P2, the grindstone 2 can be cooled in advance, and thus the temperature of the glass plate 4 and the grindstone 2 rises. The glass plate 4 can be ground while suppressing the above.

The cooling liquid 6 jetted by the jetting means 7
In this example, it is made of water, but instead of this, a cooling liquid in which gas and abrasive grains are mixed may be used.

Further, the jetting means 7 of the glass plate grinding apparatus 1 of this example is provided with a single enclosure 26, but instead of this, the outer peripheral surface 5 of the grindstone 2 distant from the portion P1. A plurality of enclosures that surround the peripheral edge portion 25 at a plurality of portions may be provided.

Further, in the glass plate grinding apparatus 1 of this example,
Although the electric motor 20 is fixedly mounted on the rotatable base 103, the rotatable base 1 is used instead of the fixed mounting.
03 and the electric motor 20, the rotatable base 10
X direction slide slidably fitted in 3 and X
The Y-direction slide slidably fitted to the Y-direction slide and the Z-direction slide slidably fitted to the Y-direction slide are provided, and the electric motor 20 is mounted on the Z-direction slide to adjust the adjustment screw. By rotating, each of the X-direction slide, the Y-direction slide, and the Z-direction slide may be moved and adjusted in the X-direction, the Y-direction, and the Z-direction with respect to the swivel base 103.

[0045]

According to the present invention, it is possible to provide a glass plate grinding method and apparatus capable of grinding a glass plate while suppressing the temperature rise of the glass plate and the grindstone.

[Brief description of drawings]

FIG. 1 is a front view of a preferred example of an embodiment of the present invention.

FIG. 2 is a side view for explaining the example shown in FIG.

FIG. 3 is a partially enlarged side view of the example shown in FIG.

FIG. 4 is an explanatory view taken along the line IV-IV shown in FIG.

5 is a cross-sectional view taken along the line VV shown in FIG.

FIG. 6 is a partially cutaway explanatory view taken along the line IV-IV shown in FIG.

7 is a partially enlarged cross-sectional explanatory view of the example shown in FIG.

[Explanation of symbols]

1 Glass plate grinding machine 2 whetstone 3 rotation means 4 glass plates 5 outer peripheral surface P1 and P2 sites 6 Coolant 7 Ejection means 8 means of transportation 9 Turning means

Claims (12)

[Claims] 1. A method of grinding a glass plate, which comprises grinding a glass plate by rotating the grindstone and bringing the outer peripheral surface of the rotated grindstone into contact with the glass plate. A method for grinding a glass plate, in which a cooling liquid is jetted toward another portion of the outer peripheral surface of the grindstone away from the portion and the cooling liquid is supplied to the other portion. 2. The method for grinding a glass plate according to claim 1, wherein the cooling liquid is jetted toward other parts of the grindstone so that a desired amount of the supplied cooling liquid remains up to the part in contact with the glass plate. 3. Another cooling liquid is applied to the surface of the glass plate,
The method for grinding a glass plate according to claim 1, wherein the other cooling liquid is jetted so as to flow on the surface of the glass plate toward a portion of the outer peripheral surface of the grindstone that is in contact with the glass plate. 4. A grindstone, a rotating means for rotating the grindstone, and a cooling liquid jetted toward another portion of the outer peripheral surface of the grindstone that is distant from a portion of the outer peripheral surface of the grindstone contacting the glass plate, An apparatus for grinding a glass plate, comprising a jetting means for supplying a cooling liquid to another portion. 5. The jetting means jets the cooling liquid toward other parts of the grindstone so that the desired amount of the supplied cooling liquid remains up to the part in contact with the glass plate. The glass plate grinding apparatus described. 6. The jetting means causes another cooling liquid to flow toward the surface of the glass plate toward the portion of the outer peripheral surface of the grindstone that contacts the glass plate on the surface of the glass plate. The glass plate grinding device according to claim 4, wherein the glass plate is jetted out. 7. The jetting means comprises an enclosing body surrounding a peripheral portion of the grindstone at another portion, and a cooling liquid supply passage provided in the enclosing body. The glass plate grinding apparatus described in 1. 8. The glass plate grinding apparatus according to claim 7, wherein the enclosure is arranged so as to surround the peripheral edge of the grindstone at a position where it does not contact the glass plate. 9. The enclosing body is provided with a concave portion arranged so as to cover a peripheral edge portion of another portion of the grindstone, and the cooling liquid is jetted from the cooling liquid supply passage while being arranged in the concave portion. The glass plate grinding apparatus according to claim 7, further comprising a jet port. 10. The enclosure regulates the outflow amount of the cooling liquid that flows out from the space defined by the concave portion and the peripheral portion of the grindstone at other portions due to the rotational force applied to the grindstone by the rotating means. The glass plate grinding apparatus according to claim 9, further comprising a regulation plate. 11. The glass plate grinding apparatus according to claim 4, further comprising moving means for moving the grindstone and the jetting means. 12. The glass plate grinding apparatus according to claim 4, further comprising a turning means for turning the jetting means.