JPS63256544A - Cutter head device for glass cutter - Google Patents

Abstract

PURPOSE:To surely score a cutting line on a blank glass plate in a prescribed shape by combining a cutter block, a cutter holder, a cutter and a holder guide so as to perform specified action. CONSTITUTION:A cutter 39 is fitted to a cutter holder 38 freely rotatably for a cutter block 36 during scoring of a cutting line by the cutter 39. The turning center of the cutter holder 38 is positioned in the advancing direction F side for the cutter 39 and this cutter 39 follows the cutter holder 38 capable of minutely turning for the direction F and moves. Therefore the stabilization of turning is contrived by absorbing unstable turning such as vibration of the cutter 39 which is caused by working precision and pivoting precision or the like of the cutter 39. Further since the turning of the cutter holder 38 is controlled with a holder guide 41, the scoring position of the cutter 39 is prevented from being deviated from the prescribed scoring position by means of centrifugal force or the like of the cutter holder 38 resulting from moving velocity.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a glass cutting machine that cuts a piece of raw glass from a piece of raw glass, for example, and which cuts a cutting line into the raw glass. The present invention relates to a cutter head device.

(Prior art) Glass cutting *i for cutting together a single sheet of glass is known, for example, as shown in Japanese Patent Laid-Open No. 57-135734, in which a single cutter head device is used to cut vertically, horizontally, diagonally and There is one that moves in an arcuate direction and cuts a cutting line on the surface of the raw glass to cut the pieces together.

The cutter head device used in this glass cutting machine is
Movement of a glass cutting machine that is equipped with a wheel-shaped cutter and that moves a cutter holder that rotatably supports the cutter in accordance with the shape of the cutting line to be inserted into the blank glass, and is constantly rotated and directed in the direction in which the cutter moves. It is fixed to the shaft. Then, by pressing the cutter against the surface of the blank glass and moving the movement axis, the cutter rotates and cuts a cutting line on the surface of the blank glass.

(Problems to be Solved by the Invention) In the conventional cutter head device as described above, the cutter holder, which rotatably supports the cutter, is fixed to the moving shaft of the glass cutting machine. The rotation of the cutter becomes unstable due to the run-out of the cutter caused by the accuracy of the shaft support, etc., which tends to cause poor cutting of the cutting line into the base glass. Furthermore, due to the installation accuracy of the cutter holder on the moving axis, there may be a slight deviation in the orientation of the cutter relative to the direction of movement of the moving axis, or there may be a slight deviation in the rotation angle of the moving axis relative to the direction of cutter movement. In cases where there was misalignment, the cutter was likely to make a poor cut in the cutting line into the base glass.

Therefore, if the cutter holder is rotatable with respect to the moving axis to absorb the run-out of the cutter and minute deviations in the direction of cutter movement, for example, in order to cut a circular arc with a small radius, the cutter can be moved. It has been difficult to cut along a predetermined circular arc due to the centrifugal force of the cutter holder due to the speed and the external size of the cutter.

The present invention was developed in view of the above-mentioned problems, and it is possible to absorb cutter deflection and minute deviations in the direction of cutter movement to reliably cut a cutting line on a blank glass.
Moreover, it is an object of the present invention to provide a cutter head device for a glass cutting machine that can cut a cutting line into a predetermined shape.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides a cutter head device for a glass cutting machine that cuts a cutting line into a blank glass 1, in which a moving axis of the glass cutting machine moves according to the shape of the cutting line inserted into the blank glass 1. 31
A cutter block 36 is fixed to the cutter block 36 , and a cutter holder 38 is provided on the cutter block 36 so as to be eccentrically rotatable in the cutter advancing direction with respect to the center of the moving shaft 31 . Correspondingly, a disc-shaped cutter 39 is rotatably supported and cuts a cutting line in the blank glass 1, and a holder guide is provided in the cutter block 36 to allow minute rotations of the cutter holder 38 and restrict the rotation. 41 is provided.

(Function) In the present invention, by moving the moving shaft 31 of the glass cutting machine in the direction in which the cutter moves, the cutter 39 cuts the blank glass 1.
A cutting line is cut into the surface of the base glass 1 by rotationally moving the surface of the base glass 1, and during this cutting movement, the cutter 39 moves following the cutter holder 38 which can be rotated minutely, and
A holder guide 41 restricts the rotation of the cutter holder 38.

(Example) Hereinafter, the configuration of an example of the present invention will be described with reference to the drawings.

FIG. 5 and FIG. 6 show a glass cutting machine that performs assembling cutting from a single piece of raw glass 1. 3, a cutter head device 4 that is placed facing the top surface of the table 2 and cuts a cutting line on the blank glass 1, and a cutter head device 4 that is attached to the frame 3.
X-axis moving mechanism 5 and Y
It is composed of a Y-axis moving machine itt6 that moves in the axial direction.

The X-axis moving mechanism 5 is provided with support frames 13 each having a guide rail 11 and a rack 12 on the upper surface along both sides of the frame 3 in the Y-axis direction. X-axis moving frame 1 that moves in the X-axis direction
4 have been constructed. This X-axis moving frame 14 is movable in the X-axis direction by sliding rail receivers 16 provided on each leg 15 at the bottom of both ends on the guide rail 11. The pinion gear 18 of the provided servo motor 17 meshes with the rack 12, and the synchronous rotation of each servo motor 17 causes parallel movement in the X-axis direction.

As shown in FIGS. 3 and 4, the Y-axis moving mechanism 6 includes a pair of upper and lower guide rails 19 along one side of the X-axis moving frame 14 and a rack 20 along the lower edge. A Y-axis moving frame 21 that moves above the table 2 in the Y-axis direction is installed between both guide rails 19. This movable frame 21 is movable in the Y-axis direction by rail receivers 22 provided on the upper and lower edges thereof sliding on the guide rails 19, and is also movable in the Y-axis direction by a pinion gear of a servo motor 23 provided on the front side. 24 meshes with the rack 20, and the cutter head device 4 moves in parallel in the Y-axis direction by the rotation of the servo motor 23, as shown in FIGS.
As shown in the figure, a cylindrical cutter head 25 opening downward is fixed to the center of the surface of the Y-axis moving frame 21, and a driven gear 28 is connected to the inside of the cutter head 25 via a bearing 27 held by a presser plate 26. A rotatable cylinder 29 having a lower outer periphery is rotatably provided, and this rotatable cylinder 29
A hollow ball spline shaft 31 is provided inside the shaft via a ball spline bearing 30 so as to be vertically movable and integrally rotatable. In addition, this ball spline shaft 3
1 is configured as a moving axis that moves according to the shape of the cutting line inserted into the blank glass 1.

A bearing 3 is provided at the upper end of this ball spline shaft 31.
A cylindrical connecting frame 33 is rotatably connected and fitted in the vertical direction via 2, and a piston rod 35 of an air cylinder 34 provided at the upper part of the cutter head 25 is connected to this connecting frame 33. There is.

Further, as shown in FIGS. 1 and 2, a cutter block 36 is fixed to the lower end of the ball spline shaft 31, and a bearing 3 is mounted inside the cutter block 36.
A cutter holder 38 is rotatably provided via 7. This cutter boulder 38 has a bearing 3 at the top.
A rotating shaft 38a that is rotatably supported by a shaft 7 is protruded, and the center of rotation of this rotating shaft 38a is a width 1 ( For example, it is provided eccentrically by 1.5 m>.

A cutter 39 made of a disc-shaped diamond is rotatably supported at the lower end of the cutter holder 38, and its pivot position is 11 mm wider than the center of rotation of the cutter holder 38.
It is provided eccentrically in the direction opposite to the cutter traveling direction F, that is, it coincides with the rotation center of ball spline #131.

Further, an abbreviated holder guide 41 is attached to the cutter block 36 with screws 40, and this holder guide 41 has a pair of rotating parts 42 at its tip that fit on the outside of the front end of the cutter holder 38. A regulating piece 43 is provided, and a gap 44 of width 1z (for example, 0.11IIll) is provided between each rotation regulating piece 43 and the outer surface of the cutter holder 38 to allow minute rotation of the cutter holder 38. It is being

Note that a substantially U-shaped support plate 36a is provided on the lower surface of the cutter block 36 so as not to interfere with the cutter holder 38.

Furthermore, a servo motor 45 is mounted on the other side of the surface of the Y-axis moving frame 21.
is fixed, and the drive gear 46 of this servo motor 45 meshes with the driven gear 28 of the rotating cylinder 29.

Further, the oil supply nozzle 47 is connected to the connecting frame 33 through a vertically long long hole 25a opened on the surface of the cutter head 25.
The oil supply nozzle 4 supplies cutting oil to the cutter 39 when cutting lines are drawn on the blank glass 1.
7. Guided to the cutter holder 38 through the tube 48 in the ball spline shaft 31;
It is designed to flow into the cutter 39 through the small hole.

Furthermore, detection pieces 49 are provided on the cutter advancing direction F side of the single-turning cylinder 29 (the rotational force direction side of the cutter 39), and the four detection pieces are placed close to the front surface of the cutter head 25 in the X-axis direction. A switch 50 is provided.

Next, the operation of this embodiment will be explained.

First, the origin position of the orientation of the cutter 39 is adjusted, and at the rotational position where the proximity switch 50 detects the detection piece 49, the orientation of the cutter 39 is adjusted to one side in the X-axis direction.

The amount of electrical pulses corresponding to the cutting angle of the first cutting line is instructed to the servo motor 45 in accordance with the input and set cutting shape of the blank glass 1, and the servo motor 45 cuts the rotary cylinder 29. and ball spline shaft 3
1 to align the direction of the cutter 39. Note that when the cutting angle of the first cutting line is the same as the angle of the origin position of the cutter 39, the servo motor 45 is not operated.

Also, the amount of electric pulses in the X-axis direction corresponding to the cutting start position of the cutting line is commanded to the power motor 17 of the X-axis moving mechanism 5, and the X-axis moving frame 14 is moved in the X-axis direction to cutter 39.
At the same time, move the electric pulse amount in the Y-axis direction according to the cutting start position of the cutting line [Fi
6 to move the Y@ moving frame 21 in the Y-axis direction to align the cutter 39 in the Y-axis direction.

After positioning the cutter 39, the cutter 39 is lowered by the air cylinder 34 via the ball spline shaft 31, and the cutter 39 is brought into contact with the surface of the blank glass 1 supplied on the table 2, and The plate glass 1 is pressed with a predetermined pressing force necessary to make a cutting line.

Next, the cutter 39 is set by instructing the servo motor 17 of the X-axis moving mechanism 5 and the servo motor 23 of the Y-axis moving mechanism 6 to send electrical pulses according to the cutting line shape of the combination cut that has been input and set. Move the cutter 3 over the base glass 1 in the cutter traveling direction F according to the cutting line shape.
As the cutter 9 moves, the cutter 39 rotates and cuts a cutting line into the surface of the blank glass 1. Note that during this cutting, the cutter 39 is filled with cutting oil supplied from the oil supply nozzle 47.

In addition, when the cutting angle of the cutting line changes or when the cutting line is a circular arc, an electric pulse corresponding to the cutting angle or circular arc is commanded to the servo motor 45 to cut the cutter 3.
Cut the direction of 9 to match the angle or arc.

While cutting a cutting line with the cutter 39, the cutter 39 is attached to a cutter holder 38 which is rotatable with respect to the cutter block 36, and the center of rotation of the cutter boulder 38 is with respect to the cutter 39. Since the cutter 39 moves following the cutter holder 38, which is located on the side of the cutter traveling direction F and can be slightly rotated with respect to the cutter traveling direction F, the cutter 39 is Absorbs unstable rotation such as swinging and stabilizes rotation,
Moreover, even if the angle of the ball spline shaft 31 is slightly deviated with respect to the cutter traveling direction F, the cutter holder 3
8 rotates to align the cutter 39 with the cutter advancing direction F.

Further, since the rotation of the cutter holder 38 is restricted by the holder guide 41, when cutting an arc with a small radius, for example, the cutting position of the cutter 39 is kept at a predetermined cutting position due to the centrifugal force of the cutter holder 38 due to the moving speed. Prevents it from moving out of position.

〔Effect of the invention〕

According to the present invention, the cutter is attached to a cutter holder that is rotatable with respect to a cutter block fixed to a moving shaft, and the rotation center of the cutter holder is provided eccentrically to the cutter advancing direction side with respect to the cutter, and,
During cutting movement, the cutter follows the cutter holder, which can rotate minutely in the cutter's direction of movement. The cutter holder can be rotated and the cutter can be aligned with the direction of cutter movement even if the angle of the axis of movement is slightly off from the direction of movement of the cutter. ,
In addition, since the rotation of the cutter holder is regulated by the holder guide, when cutting an arc with a small radius, for example, the cutting position of the cutter may deviate from the predetermined cutting position due to the centrifugal force of the cutter holder due to the moving speed. can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing an embodiment of the cutter head device for a glass cutting machine of the present invention, Fig. 2 is a bottom view thereof, and Figs. 3 and 4 respectively show a part thereof. A cutaway side view, FIG. 5 is a plan view of the glass cutting machine, and FIG. 6 is a side view thereof. 1. Raw plate glass, 31. Bow as a moving axis, respline axis, 36. Cutter block, 38. Cutter holder, 39. Cutter, 41. Holder guide. April 13, 1986

Claims (1)

[Claims] (1) In a cutter head device for a glass cutting machine that cuts a cutting line into the blank glass, a cutter block fixed to the moving shaft of the glass cutting machine moves according to the shape of the cutting line inserted into the blank glass; A cutter holder is rotatably provided eccentrically in the cutter advancing direction with respect to the center of the moving axis, and a cutter holder is rotatably supported on the cutter holder in correspondence with the center of the moving axis to cut a cutting line on the blank glass. A cutter head device for a glass cutting machine, comprising: a disc-shaped cutter into which the cutter is inserted; and a holder guide provided on the cutter block to allow minute rotations of the cutter holder and regulate the rotations.