JP2001226133A - Cutter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutter device capable of forming a cutting line which is regularly unified on a glass plate, by improving the followup ability and responsiveness of a cutter blade with respect to a rugged variation in the surface of the glass plate. SOLUTION: This cutter device is provided with a coil spring 74 which elastically energizes a cutter wheel 7 toward the glass plate 80 between an end metal part 71 which supports the cutter wheel 7 freely rotatably and an end metal supporting part 72 which supports the end metal part 71 in the directions of A and B freely movably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter for cutting a glass sheet or breaking a glass sheet.

[0002]

2. Description of the Related Art Window glass for buildings, from raw glass sheets,
When manufacturing window glass for automobiles or the like, in order to make the raw glass sheet into a predetermined shape, for example, a cut line (main folding line) along the predetermined shape is formed on the raw glass sheet, and this cut line is A glass sheet cutting device or a glass sheet folding apparatus for forming an edge cut line (auxiliary score line) on the formed raw glass plate and cutting or breaking the glass sheet along the cut line and the edge cut line (hereinafter, these are simply referred to as cut lines). A splitting device is used. And such a glass plate cutting device or a glass plate breaking device,
A cutter device is provided for forming a cutting line, and the cutter device has a cutter blade pressing mechanism for pressing a cutter blade against a glass plate.

[0003]

However, in the conventional cutter device, if the followability of the cutter blade to the unevenness (undulation) of the surface of the glass plate is poor, the cutting line is strong (deep) or the cutting line is weak (shallow). However, in some cases, the cut line may disappear, and the cut line may not be uniform and a good cut surface may not be obtained. If the cutter blade pressing mechanism is adjusted so that a predetermined cutting line is formed where the cutting line is weak, a stronger cutting line is formed where the cutting line is strong (deep), and the cut surface becomes very bad.
In some cases, chipping may occur. On the other hand, if a predetermined cutting line is formed where the cutting line is strong, the cutting line may sometimes not be formed where the cutting line is weak, and in some cases, the glass plate may not be cut. This occurs remarkably when the cutting speed is increased by increasing the moving speed of the tool.

[0004] The present invention has been made in view of the above-mentioned points, and an object of the present invention is to improve the responsiveness of a cutter blade to the unevenness of the surface of a glass plate and to improve the responsiveness of the glass plate so that a uniform unified cutting line is formed on the glass plate. An object of the present invention is to provide a cutter device that can be formed on a plate.

[0005]

According to the present invention, an object of the present invention is to provide a cutter between a tip metal support for supporting a cutter blade and a tip metal support for supporting the metal tip in an axially movable manner. This is achieved by a cutter device provided with an elastic member that elastically urges the blade toward the glass plate.

In one embodiment of the present invention, the tip is provided with a mounting portion to which the cutter blade is mounted, and a shaft formed integrally with the mounting portion, and the shaft moves in the axial direction at the shaft portion. It is freely supported by the tip support. The tip support may support the tip in a freely rotatable manner around the axis. In this case, the tip support is provided with a shaft movable ball bearing, and the tip movable part is provided by the shaft movable ball bearing. More specifically, the shaft portion of the tip metal portion may be supported so as to be rotatable around the axis and movable in the axial direction.

A preferred example of the elastic member is a coil spring, but other elastic members such as a leaf spring and a rubber member may be used. When the movable ball bearing shaft is provided, an elastic member made of a coil spring may be arranged between the movable ball bearing and the mounting portion. In addition, when the tip is rotatably supported around the axis, the pressing position on the glass plate is preferably decentered from the axis, so that the cutting edge can be automatically copied in the cutting line direction. A preferred example of the cutter blade may be a cutter wheel, but other cutter wheels may be used.

[0008] By using the present invention, the tip support may be fixed in the axial direction. However, it is preferable that the tip support be movable and connected to a cutter blade pressing mechanism or a cutter blade positioning mechanism.

[0009]

In the cutter device according to the present invention, the cutter blade is brought into contact with the surface of the glass plate by the positioning mechanism, and is moved in the cutting line forming direction by a program stored in advance. When the surface of the glass plate changes, the cutter blade moves in accordance with the change in the surface of the glass plate due to the expansion and contraction of the elastic member. The desired cutting line is formed.

Hereinafter, the present invention will be described in more detail with reference to preferred embodiments shown in the drawings. The present invention is not limited to these specific examples.

[0011]

1 to 3 show a cutter device 1 of the present embodiment.
Reference numeral 00 denotes a position between a tip metal part 71 that rotatably supports the cutter wheel 7 as a cutter blade and a tip metal support part 72 that supports the tip metal part 71 movably in the axial direction, that is, the A and B directions. And a coil spring 74, which is an elastic member that elastically urges the cutter wheel 7 toward the glass plate 80.

The cutter device 100 of this embodiment further includes a base 1
A slider 2 mounted on the base 1 so as to be vertically movable, that is, movable in the directions A and B; a slider moving device 3 for moving the slider 2 up and down; and a pneumatic cylinder device 35 mounted on the slider 2. The pneumatic cylinder device 3 receives the air elastic force from the pneumatic cylinder device 35.
The shaft 5 is provided with a rotatable shaft 5 connected to the shaft 5, and a shaft rotating device 6 for rotating the shaft 5. A tip support portion 72 is fixed to a lower end of the shaft 5.

The slider 2 is fitted on a rail 21 fixed to the base 1 movably in directions A and B. The slider moving device 3 includes an electric motor 22 provided on the base 1.
A screw shaft 23 screwed to the slider 2 and rotatably supported on the base 1 at both ends, and a screw shaft 23 for transmitting the rotation of the output rotation shaft 24 of the electric motor 22 to the screw shaft 23. 23 and a rotation transmission mechanism 25 connected to the output rotation shaft 24
Is provided. The rotation transmission mechanism 25 includes the output rotation shaft 2
4, a pulley 32 attached to one end of the screw shaft 23, and pulleys 31 and 3.
And a belt 33 stretched between the two. When the output rotary shaft 24 is rotated by the operation of the electric motor 22, the rotation is transmitted to the screw shaft 23 via the pulley 31, the belt 33, and the pulley 32. When the screw shaft 23 is rotated, the screw shaft 23 is rotated. Is moved in the A or B direction, that is, lowered or raised.

The one end 37 of the piston rod 36 of the pneumatic cylinder device 35 is connected to the upper end 4 of the shaft 5 via a coupling 38 and a connecting shaft 39 for alignment and a bearing mechanism 40.
Connected to 1. The bearing mechanism 40 includes a housing 45 and a ball bearing 46 mounted in the housing 45 and mounted on the connection shaft 39 so that the one end 37 of the piston rod 36 and the shaft 5 can be relatively rotated, that is, These are interconnected such that a relative rotation R about the axis 47 of the shaft 5 is possible. In addition,
One end 37 of the piston rod 36 may be connected to the upper end 41 of the shaft 5 via the bearing mechanism 40 omitting the alignment coupling 38 and the connection shaft 39. The air elastic force generated by the pneumatic cylinder device 35 includes the piston rod 36, the coupling 38, the connecting shaft 39, the bearing mechanism 40 and the shaft 5, the tip support 72 and the tip 71.
Is transmitted to the cutter wheel 7 via the.

The cylinder 48 for accommodating the piston connected to the piston rod 36 of the pneumatic cylinder device 35 includes:
When the slider 2 is moved in the direction A or B, the slider 2 is mounted on the mounting portion 49 of the slider 2, and is supported via the pneumatic cylinder device 35, the coupling 38, the connecting shaft 39, the bearing mechanism 40 and the shaft 5. Part 72 and tip part 7
1, the cutter wheel 7 is also moved in the A or B direction, ie lowered or raised.

The shaft rotating device 6 has an electric motor 51 arranged concentrically with the shaft 5.
And a rotor 53 concentrically arranged with the shaft 5 through a ball spline mechanism 52, and a stator fixed to the bracket 55 of the base 1 via screws 54 and arranged concentrically with the shaft 5. And a ball bearing 58 is disposed between the stator 56 and the outer cylindrical portion 57 of the rotor 53. The ball spline mechanism 52 is provided on the inner surface of the inner cylindrical portion 59 of the rotor 53. And spline grooves 60 and 61 formed on the outer surface of the shaft 5 along the axis 47, and a number of balls 62 fitted in the spline grooves 60 and 61, respectively. While transmitting the rotation to the shaft 5, the shaft 5 is allowed to move relative to the rotor 53 in the A and B directions. When the rotor 53 is rotated by the operation of the electric motor 51, the shaft 5 is also rotated, so that the cutter wheel 7 is directed in a direction in which a cutting line is to be formed.

The tip holder 71 has a mounting part 75 for rotatably supporting the cutter wheel 7 and a shaft part 76 integrally formed with the mounting part 75.
2 includes a cylindrical main body 77 and a ball spline mechanism 78, and a shaft portion 76 is supported by the cylindrical main body 77 via the ball spline mechanism 78 so as to be movable in the A and B directions. The main body 77 is fixed to the lower end of the shaft 5 by a screw 79. In this example, the coil spring 74 is a cylindrical body 77
The mounting portion 75 is urged toward the glass plate 80 by its elastic force.
The ball spline mechanism 78 has a ball 81 and is formed similarly to the ball spline mechanism 52.

The base 1 is moved in an X direction (FIG. 1) in a plane parallel to the plane of the glass plate 80 by an XY moving device (not shown).
(In the direction perpendicular to the plane of the drawing) and in the Y direction orthogonal thereto, so that when the base 1 is moved in the X-Y directions, the cutter wheel 7 is also moved in a plane parallel to the plane of the glass plate 80. , Ie, in the XY directions.

The cutter device 100 formed as described above
When a cut line is formed in the glass plate 80 by using the electric motor 22 of the slider moving device 3, the cut line is started. The slider 2 is lowered by the operation of the electric motor 22, and the lowering of the slider 2 is transmitted to the shaft 5 via the pneumatic cylinder device 35. At the same time as the shaft 5 is lowered, the cutter wheel 7 is also lowered, whereby the cutter wheel 7 comes into contact with the glass plate 80. After the cutter wheel 7 comes into contact with the glass plate 80, the base 1 is moved in the XY plane, and the cutter wheel 7 is moved in the direction in which the cutting line should be formed while forming the cutting line. During the movement in the XY plane, the rotation of the shaft 5 by the operation of the rotor 53 of the electric motor 51 causes the cutter wheel 7 to be directed in the direction in which the cutting line is to be formed. During the formation of the cutting line, the pneumatic cylinder device 3
The cutter wheel 7 is pressed against the glass plate 80 by the air elastic force from 5. When the formation of all cut lines is completed,
When the electric motor 22 is again rotated in the reverse direction, the cutter wheel 7 is moved up together with the shaft 5, and the cutter wheel 7 is moved up and away from the glass plate 80 to a predetermined position.

In the cutter device 100, since the cutter wheel 7 attached to the attachment portion 75 is elastically pressed against the glass plate 80 by the coil spring 74, the surface of the glass plate 80 has irregularities (undulation). Even if the cutter wheel 7 moves up and down correspondingly, a substantially uniform cut line can be formed on the glass plate 80. Since the coil spring 74 urges the tip portion 71 having a relatively small weight, the cutter wheel 7
Even if the cutting speed is increased by moving the
The cutter wheel 7 can be made to respond faithfully to the unevenness of the surface of the cutter wheel 7.

In the cutter device 100, the cutter wheel 7 is lowered and raised by the slider moving device 3, and the cutter wheel 7 is elastically pressed against the glass plate 80 by the pneumatic cylinder device 35. A situation in which the cutter wheel 7 collides with the glass plate 80 when the cutter wheel 7 descends can be eliminated, and a glass plate product without cracks, chips or the like can be manufactured. That is, the cutter wheel 7 is controlled by the pneumatic cylinder device 35.
When the cutter wheel 7 descends, the cutter wheel 7 may collide with the glass plate 80 when the cutter wheel 7 descends, but the cutter device 100 eliminates such a risk.
The cutter wheel 7 can be positioned exactly with respect to the glass plate 80.

In the above, the tip 71 is movably supported in the directions A and B via the ball spline mechanism 78. Instead, as shown in FIG. A movable ball bearing 111 is provided,
Is supported at its shaft portion 76 by a movable ball bearing 111 so as to be rotatable around the axis 47 in the R direction and movably in the axial direction. A coil spring is provided between the movable shaft ball bearing 111 and the mounting portion 75. 74 may be arranged. Further, if the cutter device 100 is formed such that the pressing position 113 of the cutter wheel 7 against the glass plate 80 is eccentric from the axis 7, the cutting edge of the cutter wheel 7 during the formation of the cutting line can be automatically copied in the moving direction. it can.

[0023]

As described above, according to the present invention, it is possible to improve the responsiveness of the cutter blade to the unevenness of the surface of the glass plate and the responsiveness, and to form a uniform cut line on the glass plate.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view of a preferred embodiment of the present invention.

FIG. 2 is a partially detailed explanatory view of a specific example shown in FIG. 1;

FIG. 3 is a sectional view taken along line III-III shown in FIG.

FIG. 4 is a partially sectional explanatory view of another preferred embodiment of the present invention.

[Explanation of symbols]

 7 cutter wheel 71 tip metal part 72 tip metal support part 74 coil spring 100 cutter device

[Procedure amendment]

[Submission date] February 14, 2001 (2001.2.1)
4)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

7. A last Fri supporting portion cutter apparatus according to claim 5 or 6 are rotatably supported lifting the previous gold portion in the axial direction.

9. cutter blade, the cutter device according to any one of claims 1 consisting of the cutter wheel 8.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

According to the present invention, the object is to press a glass plate to form a cut line in the glass plate.
The cutter blade is moved up and down via a slider.
And a slider moving device for moving the slider.
The device is equipped with an electric motor,
The slider is moved up and down by operation,
The cutter blade moves up and down according to the vertical movement of the slider.
This is achieved by a mounted cutter device.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

A preferred example of the elastic member is a coil spring, but other elastic members such as a leaf spring and a rubber member may be used. In the case of providing a shaft movable ball bearings,
It is preferable to dispose an elastic member made of a coil spring between the shaft movable ball bearing and the mounting portion. In addition, when the tip is rotatably supported around the axis, the pressing position on the glass plate is preferably decentered from the axis, so that the cutting edge can be automatically copied in the cutting line direction. A preferred example of the cutter blade may be a cutter wheel, but other cutter wheels may be used.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0022

[Correction method] Change

[Correction contents]

In the above, the tip 71 is movably supported in the directions A and B via the ball spline mechanism 78. Instead, as shown in FIG. A movable ball bearing 111 is provided,
Is supported at its shaft portion 76 by a movable ball bearing 111 so as to be rotatable around the axis 47 in the R direction and movably in the axial direction. A coil spring is provided between the movable shaft ball bearing 111 and the mounting portion 75. 74 may be arranged. When the cutter device 100 is formed such that the pressing position 113 of the cutter wheel 7 against the glass plate 80 is eccentric from the axis 47 , the cutting edge of the cutter wheel 7 during the formation of the cutting line may be automatically copied in the moving direction. it can.

Claims (11)

[Claims] 1. A method according to claim 1, further comprising a step of supporting a tip blade which supports the cutter blade and a tip support which movably supports the tip blade in an axial direction.
A cutter device provided with an elastic member that elastically urges a cutter blade toward a glass plate. 2. The cutter device according to claim 1, wherein the tip support portion rotatably supports the tip metal around an axis. 3. The cutter device according to claim 1, wherein the pressing position of the cutter blade against the glass plate is eccentric from the axis. 4. The cutter device according to claim 1, wherein the elastic member comprises a coil spring. 5. The tip member includes a mounting portion to which the cutter blade is mounted, and a shaft portion formed integrally with the mounting portion, and the shaft portion is supported by the tip support portion. Item 5. The cutter device according to any one of Items 1 to 4. 6. The tip support according to claim 1, wherein the tip support is rotatably supported about a shaft center and movable in an axial direction by a movable ball bearing. Cutter device. 7. The tip metal part has a mounting part to which a cutter blade is mounted, and a shaft part integrally formed with the mounting part, and the tip metal support part has a shaft movable ball bearing. 2. The cutter device according to claim 1, wherein the tip portion is supported at the shaft portion by a shaft movable ball bearing shaft portion so as to be rotatable around the axis and movable in the axial direction. 8. The cutter device according to claim 7, wherein the pressing position on the glass plate is eccentric from the axis. 9. The cutter device according to claim 7, wherein an elastic member comprising a coil spring is disposed between the movable shaft ball bearing and the mounting portion. 10. The cutter device according to claim 1, wherein the tip support is movable in the axial direction. 11. The cutter device according to claim 1, wherein the cutter blade comprises a cutter wheel.