TWI649282B - Scribing head and scribing device - Google Patents

Abstract

The scoring head provided by the invention and the scoring device using the scoring head can solve the problem of the inner wheel difference of the cutter wheel and improve the straightness.

The scoring head 10 is provided with a scoring head 10 that processes a scribe line on the surface of the substrate W by moving while pressing the surface of the substrate W, and a holder 13 having the cutter wheel 11 at a lower portion is mounted to pass through the holder 13 The shaft 12 supports the holder joint 15 of the holder 13 in a freely rotatable manner, the holder joint 15 is held by the vertical rotation shaft 16 as a first holding member 18 that can rotate freely, and the first holding member 18 is formed by a second holding member 19 that can be raised and lowered; the mounting shaft 12 of the holder is formed to be inclined to the rear side of the scoring head 10 with respect to the vertical line L1; the vertical rotation axis of the holder joint 15 16. It is arranged on the vertical line L1 passing through the ground point P1 of the cutter wheel 11.

Description

Scribing head and scribing device

The present invention relates to a scoring head provided with a cutter wheel (also known as a scoring wheel) for processing a scribe line (cutting groove for cutting) on the surface of a brittle material substrate such as glass, and a scoring head using the scoring head. Otting device.

Conventionally, a scoring device for processing a scribing line along a predetermined line by a cutter wheel on the surface of a brittle material substrate (hereinafter referred to as "substrate") is widely known (for example, refer to Patent Documents 1 and 2).

Generally speaking, the cutter wheel is supported by a holder, and the holder is mounted on the holder joint of the scoring head. In addition, the conventionally used structure has the following structure: When the scoring head has been advanced, the cutter wheel functions so-called "caster effect" on the line that always wants to return to its direction of travel (for example, refer to Patent Document 3). Patent Literature 4).

Fig. 3 is an explanatory view showing a mounting structure of a conventional cutter wheel having the "backward tilting effect" described above.

The holder 22 holding the cutter wheel 21 at the lower end is rotatably attached to a holder joint 25 of the scoring head 24 through a vertical mounting shaft 23. The ground point of the cutter wheel 21 is located at a position offset by a distance S1 from the line L3 formed by extending the vertical center of the mounting shaft 23 toward the rear side of the scoring head 24 in the traveling direction. Therefore, when the scoring head 24 has been caused to travel, the following cutter wheel 21 is applied to a torque on a line that is always intended to return to the traveling direction to obtain the straightness of the cutter wheel.

Patent Document 1: International Publication WO2007 / 063979

Patent Document 2: Japanese Patent Application Laid-Open No. 2011-218815

Patent Document 3: Japanese Unexamined Patent Publication No. 8-217476

Patent Document 4: Japanese Patent Application Laid-Open No. 2010-260757

The straightness of the cutter wheel caused by the "backward tilting effect" described above is changed by the offset. In addition, although it also changes due to the moving speed of the cutter wheel, in the case of a large offset, the straightness is improved, but the vibration to the left and right is weakened, making it easy to deviate from the line along the direction of travel of the scoring head to the outside. .

In addition, when using a scoring head having a "backward tilting effect" to process a scribe line along a curve, as shown in FIG. 4, the cutter wheel 21 is deviated from the scribe line 28 to the inside and cannot be accurately performed. The problem of so-called inner races such as machining. Therefore, in the curve cutting, it is necessary to calculate the amount of deviation of the rolling track of the cutter wheel to the inside and program it in the computer, but this operation is quite troublesome. In addition, since the cutter wheel 21 which has deviated to the inside becomes inclined with respect to a curve in a plan view as shown in FIG. 4, there are also problems such that the score line cannot be processed beautifully.

On the other hand, a handle shaft and a wheel of a bicycle, a motorcycle, or the like are combined with a structure called a backslope and a trail. As shown in FIG. 5, the so-called camber angle is the inclination angle β of the rotation axis L5 of the handle shaft 26 relative to the vertical line L4, and the so-called tail diameter is the ground point P3 of the wheel 27 to the handle shaft The rotation axis L5 of 26 is extended to a distance T1 at a point P4 formed by the same horizontal line as the ground point P3. The larger the inclination of the handle shaft 26 is, the longer the tail diameter (T1) is. Although the straightness is stable, the operation of the handle becomes heavy.

The present invention has been made in consideration of the above-mentioned viewpoints, and an object thereof is to provide a scribe head capable of accurately processing a curved scribe line, and capable of suppressing deviation of a cutter wheel and improving straightness by combining the structure of the trailing diameter described above, The scoring device of the scoring head.

In order to solve the above problems, the following technical means are proposed in the present invention. That is, the scoring head of the present invention is provided with a scoring wheel that processes a scribe line on the surface of the substrate by pressing the surface of the substrate while moving it relatively. The scoring head is formed by The holder supports a holder joint of the holder so as to be freely rotatable around the mounting shaft through a mounting shaft provided on the upper part of the holder, and the holder joint is held to rotate freely through a vertical rotation shaft A first holding member and a second holding member capable of holding the first holding member up and down; the mounting shaft of the holder is formed to be inclined toward the rear side of the scoring head in the direction of travel with respect to a vertical line; The axis of the vertical rotation axis of the holder joint is disposed on a vertical line passing through the ground point of the cutter wheel.

In addition, the scoring device of the present invention is provided with the above-mentioned scoring head, the scoring head is held on the beam of the machine frame, and the cutter wheel of the scoring head is pressed against the surface of the substrate placed on the platform. One side moves relatively along the surface of the substrate.

In the present invention, preferably, the diameter of the cutter wheel is 1 to 3 mm, the inclination angle between the axis of the mounting shaft and the vertical line is 10 to 25 °, and the ground point and extension of the cutter wheel to the substrate The tail diameter between the line formed by the axis of the mounting shaft and the place where the substrate intersects is 2-5 mm. In addition, it is preferred that an offset between the wheel shaft of the cutter wheel and a line formed by extending the axis of the mounting shaft is 1 to 4 mm.

According to the present invention, it is possible to improve the straightness of the cutter wheel by the tail diameter generated by tilting the mounting shaft of the holder, and the inclined mounting shaft can be compared with the case of vertical mounting by Because the degree of freedom of rotation is limited, it is possible to stabilize straightness and effectively suppress deviations due to vibration and the like.

Furthermore, since the vertical rotation axis of the holder joint is mounted on the first holding member along a vertical line passing through the ground point of the cutter wheel, the cutter wheel can follow By moving the trajectory, the curve does not deviate from the planned scribe line to the inside as in the conventional case, and the scribe line of the curve can be accurately processed.

In addition, since the pressure on the cutter wheel during scoring is different from that of the handlebar shaft of a general two-wheeled vehicle, it is applied vertically at the center position of the tip of the cutter wheel, so that it can easily control the pressure of the cutter wheel. And other effects.

In the present invention, the wheel shaft of the cutter wheel may be provided at a position shifted to the rear side of the scoring head in the direction of travel of the scoring head with respect to a line formed by extending the axis of the mounting shaft.

Thereby, it is possible to obtain a long tail diameter amount by the amount of the offset, and it is possible to further improve the straight running property.

W‧‧‧ substrate

S‧‧‧ Offset interval

T‧‧‧Tail diameter

1‧‧‧ platform

6‧‧‧Beam

7‧‧‧ rack

10‧‧‧ Scribble head

11‧‧‧ knife wheel

11a‧‧‧ Wheel

12‧‧‧Mounting shaft

13‧‧‧ holder

15‧‧‧ holder connector

16‧‧‧ vertical axis of rotation

18‧‧‧first holding member

19‧‧‧Second holding member

FIG. 1 is a schematic front view showing an example of a scoring device according to the present invention.

Fig. 2 is a front view of the scoring head of the present invention.

Fig. 3 is a front view showing an example of a conventional scribing head.

FIG. 4 is a diagram for explaining a problem of inner wheel difference in a conventional scoring head.

FIG. 5 is an explanatory diagram of a camber angle and a tail diameter in a general two-wheeled vehicle.

In the following, details of the scoring head and the scoring device provided with the scoring head of the present invention will be described based on the embodiments shown in FIGS. 1 and 2.

FIG. 1 is a view showing a scribing device according to the present invention, and includes a stage 1 on which a substrate W is placed and held. A plurality of air suction holes (not shown) are provided on the surface of the platform 1 and communicate with an air suction source (not shown) such as a vacuum pump provided outside.

In addition, the platform 1 is movable along the horizontal rail 2 in the Y direction (forward and backward directions in FIG. 1), and is driven by a screw shaft 3 that is rotated by a motor (not shown). In addition, the platform 1 can be rotated in a horizontal plane by a rotation drive unit 4 having a built-in motor.

A frame 7 including support columns 5 and 5 provided on both sides of the platform 1 and a beam (transverse beam) 6 extending horizontally in the X direction is provided on the platform 1. A guide 8 extending horizontally in the X direction is provided on the beam 6. The scoring head 10 of the present invention is mounted on the guide 8 so that the scoring head 10 can be moved in the X direction by the motor 9.

As disclosed in detail in FIG. 2, the scoring head 10 is provided with a holder 13 provided with a cutter wheel 11 at the lower portion and a mounting shaft 12 at the upper portion, and passes through the mounting shaft so as to be freely rotatable about the mounting shaft 12. 12 and the bearing 14 support a holder joint 15 of the holder 13, a first holding member 18 that holds the holder joint 15 rotatably through a vertical rotation shaft 16 and a bearing 17, and the first holding member 18 It is comprised by the 2nd holding member 19 hold | maintained up and down.

The first holding member 18, the holder joint 15 and the holder 13 can be raised and lowered integrally by a lifting mechanism (not shown) such as a fluid cylinder provided in the second holding member 19. The cutter wheel 11 mounted on the holder 13 is a one having a diameter of 1 to 3 mm.

The mounting shaft 12 of the holder 13 is formed so as to be inclined at an angle α to the rear side of the heading direction (arrow direction in FIG. 2) with respect to the vertical line L1. The tilt angle (backward tilt angle) α is preferably 10 to 25 °.

In addition, by the inclination of the mounting shaft 12, the ground points P1 of the substrate W with the cutter wheel 11 and A tail diameter T is generated between a point P2 where the line L2 formed by extending the axis of the mounting shaft 12 and the substrate W intersect. The length of the tail diameter T is preferably 2 to 5 mm.

Further, the wheel shaft 11 a of the cutter wheel 11 is provided at a position offset from the line L2 formed by the extension of the axis of the mounting shaft 12 to the rear side of the scoring head 10 by an interval S. The offset, that is, the interval S, is preferably 1 to 4 mm.

In addition, the axis of the vertical rotation shaft 16 of the holder joint 15 is provided along a vertical line L1 passing through the ground point P1 of the cutter wheel 11.

In this embodiment, when a cutter wheel having a diameter of 2 mm is used, the inclination angle α of the mounting shaft 12 is set to 17 °, and the offset interval S is set to 2.5 mm, the length of the trailing diameter T becomes 2.92 mm. Therefore, the trailing diameter T is formed to be longer than the offset amount of 2.5 mm when the mounting shaft 12 is set vertically.

The above-mentioned scoring device moves the scoring head 10 in the direction of the arrow in FIG. 2 while pressing the cutter wheel 11 against the surface of the substrate W, and performs scribes on the surface of the substrate W.

During this processing, the tail diameter T generated by tilting the mounting shaft 12 can improve the straightness of the cutter wheel 11. The tilting mounting shaft 12 has a limited degree of freedom of rotation compared to the vertical case Therefore, the straightness can be stabilized, and deviations due to vibration and the like can be effectively suppressed.

Further, since the wheel shaft 11 a of the cutter wheel 11 is provided at a position offset from the line L2 formed by extending the axis of the inclined mounting shaft 12 toward the rear side of the scoring head 10 by the interval S, the When the amount of the interval S is longer than the above-mentioned amount of the trailing diameter, the straightness can be further improved.

In addition, since the vertical rotation axis 16 of the holder joint 15 is mounted on the first holding member 18 along a vertical line L1 passing through the ground point P1 of the cutter wheel 11, the moment of the curve is performed When scoring, the cutter wheel 11 can travel along the moving track of the scoring head 10. Thereby, it is possible to accurately process the scribe line of the curve without deviating from the predetermined line of the scribe line to the inside as is customary.

In addition, since the pressure on the cutter wheel 11 during scoring is different from that of the handlebar shaft of the two-wheeled vehicle originally described, it is applied vertically at the center position of the tip end of the cutter wheel 11, so that the pressure control can be easily performed. .

Although the representative embodiments of the present invention have been described above, the present invention is not limited to only the above-mentioned embodiments. For example, in the above-mentioned embodiment, although the wheel shaft 11a of the cutter wheel 11 is provided at a position offset from the line L2 with respect to the axis of the extended inclined mounting shaft 12 by a distance S toward the rear side in the traveling direction of the scoring head 10 , But the interval S may be set to zero. In addition, in the present invention, modifications and changes may be appropriately made within a scope that achieves its purpose without departing from the scope of patent application.

The present invention can be applied to a scoring head for scoring the surface of a brittle material substrate such as glass, and a scoring device using the scoring head.

Claims (6)

A scoring head is provided with a scoring wheel for processing a scribe line on the surface of a substrate by pressing the surface of the substrate while moving the surface of the substrate. The holder joint of the holder is supported by a mounting shaft provided on the upper part of the holder so as to be able to rotate freely around the mounting shaft, and the holder joint is held in a freely rotatable first holder through a vertical rotation axis. And a second holding member capable of holding the first holding member up and down; the mounting shaft of the holder is formed to be inclined toward the rear side of the scoring head with respect to the rotation axis of the holder joint; ; The axis of the vertical axis of rotation of the holder joint is arranged on a vertical line passing through the ground point of the cutter wheel. For example, the scoring head of the scope of patent application, wherein the wheel shaft of the cutter wheel is provided at a position offset from the line formed by extending the axis of the mounting shaft toward the rear side of the scoring head in the traveling direction. For example, the scoring head of item 1 or 2 of the patent application scope, wherein the diameter of the cutter wheel is 1 ~ 3mm, the inclination angle between the axis of the mounting shaft and the vertical line is 10 ~ 25 °, The tail diameter between the ground point of the substrate and the line where the axis of the mounting shaft is extended intersects with the substrate is 2 to 5 mm. For example, the scoring head of item 1 or 2 of the scope of patent application, wherein the offset between the wheel shaft of the cutter wheel and the line extending the axis of the mounting shaft is 1 to 4 mm. For example, the scoring head of the third scope of the patent application, wherein the offset between the wheel shaft of the cutter wheel and a line formed by extending the axis of the mounting shaft is 1 to 4 mm. A scoring device, comprising: a scoring head according to any one of claims 1 to 5 of the scope of patent application; the scoring head is held on the beam of the machine frame, and the cutter wheel of the scoring head is pressed on one side One side of the surface of the substrate placed on the platform is relatively moved along the surface of the substrate.