TWI410312B - Cutter wheel retainer and retainer unit - Google Patents

Abstract

The invention refers to a Knife wheel holder which possesses a holder groove for a scribing wheel to be inserted, and a pin hole linearly passing through the holder groove. The pin hole is inclined to a vertical direction relative to the holder groove. Through the spinning of the scribing wheel, the scribing wheel moves to and is against one side of the holder groove, in such a way that the scribing wheel moves along the pin to a connection part with one side of the holder groove to stabilize a forming position of a scribing line of a fragile material substrate, thereby removing inhomogeneityof forming precision of the scribing line.

Description

Cutter wheel holder and holder unit

The present invention relates to a cutter wheel holder (a holder for a scribing wheel) and a holder unit (cutter holder unit) for forming a scribing device for dividing a substrate of a brittle material.

There are scribing devices for scribing a brittle material substrate to a desired size. The scribing device has a holder unit on a scribing head that faces the brittle material substrate, and a cutter wheel holder having a scribing wheel is attached to the holder unit. Fig. 1 is a view showing the configuration of a prior art cutter holder. Fig. 1(a) is a front view, Fig. 1(b) is a side view, and Fig. 1(c) is a view showing the lower side. The cutter wheel holder 100 has a holder 101, a scribing wheel 102, and a pin 103.

As shown in FIG. 1, a holder groove 104 and a pin hole 105 are formed in a lower portion of the cutter wheel holder 100. The scribing wheel 102 is a disk-shaped member, and has a through hole penetrating through the center of the two circular side faces and a V-shaped blade along the outer peripheral portion of the scribing wheel 102. The leading edge of the V-shaped blade is formed with a ridge line along the outer circumference of the scribing wheel 102. The inclined faces (outer peripheral portions) on both sides of the ridge line generally intersect each other at an angle of 90 to 160 (convergence angle) to form a ridge line. The pin 103 is a cylindrical member that is inserted into the through hole of the scribing wheel 102 and the pin hole 105 of the holder 101 to keep the scribing wheel 102 free to rotate.

The cutter wheel holder 100 holds the scribing wheel 102 in the holder groove 104, and inserts the pin 103 into the through hole of the pin hole 105 and the scribing wheel 102. As a scribing device having such a cutter wheel holder, there is a patent document 1.

[Patent Document 1] International Patent Publication WO2007/063979

The thickness of the scribing wheel is, for example, about 0.65 mm. The width of the retaining groove is as wide as the thickness of the scribing wheel, for example, about 0.02 mm, and a gap is ensured between the scribing wheel and the retainer groove. The scribing wheel can be moved by about 0.02 mm along the pin in the holder groove by the gap. However, since the gap is provided, the position at which the scribe line is formed cannot be stabilized and deviates from the intended position.

SUMMARY OF THE INVENTION The present invention is directed to the problem that the position at which the scribe line is formed deviates in such a conventional scribing apparatus, and the object thereof is to stabilize the formation position of the scribe line without deviating from the intended position.

In order to solve the problem, the cutter wheel holder of the present invention includes: a scribing wheel having a disk shape and having a through hole at the center, and having two cutting edge edges forming a V-shaped ridge along the outer peripheral portion of the disk a curved surface; and a holder having a holder groove having a fixed width for inserting the scribing wheel, a pin hole linearly penetrating through the formation portion of the holder groove, and a through hole inserted through the pin hole and the scribing wheel The hole holds the pin in which the scribing wheel rotates freely in the holder groove; and the scribing wheel moves toward the side surface of one of the holder grooves by the rotation of the scribing wheel and abuts.

Here, the pin may be cylindrical and provided with a spiral groove along the outer circumference thereof.

Here, the pin may be cylindrical and tapered.

Here, the pin hole of the holder may be formed to be inclined with respect to the vertical direction.

Here, the scribing wheel may have a blade leading edge having a V-shaped ridge line between the two side faces having the through hole and the one side closer to the center in the thickness direction.

Here, the line of the scribe line perpendicular to the surface of the ridge line intersecting the curved surface of the one surface with respect to the ridge line, and the line perpendicular to the surface of the ridge line and the curved surface of the other side are formed. The angle with respect to the ridge plane may also differ.

Here, the scribing wheel may have a spiral groove along a wall surface of the through hole of the scribing wheel.

In order to solve the problem, the holder unit of the present invention includes the cutter holder and a holder joint to which the cutter holder is attached, and the holder joint includes a bearing and a holder, and the holder is attached to the holder. The above-described bearing holds the cutter holder in such a manner that the scribing wheel train of the cutter wheel holder is disposed at a position separated from the central axis of the bearing by a fixed distance.

According to the present invention having such characteristics, the formation position of the scribe line on the substrate of the brittle material can be stabilized, and the unevenness in the formation accuracy of the scribe line can be eliminated.

(First embodiment)

A first embodiment of the cutter wheel holder and the holder unit of the present invention will be described with reference to Figs. 2 to 7 . Fig. 2 is a view showing the configuration of a scribing head and a holder unit of the embodiment. A holder unit composed of the cutter holder 10A and the holder joint 20 is attached to the lower portion of the scribing head 1.

3 and 4 are views showing the cutter wheel holder and the holder joint. As shown in Fig. 3, the cutter wheel holder 10A has a mounting portion formed by cutting the upper portion of the holder 11A, and a scribing wheel 12A at a lower portion of the holder 11A.

Next, as shown in FIGS. 3 and 4, the holder joint 20 has bearings 21a and 21b at the upper portion and a holding portion 22 for holding the cutter holder. In the holding portion 22 of the holder joint 20, a circular opening 23 is formed as shown, and a magnet 24 is buried inside. Further, inside the opening 23, a parallel pin 25 perpendicular to the central axis is provided at a position spaced apart from the central axis. The parallel pin 25 is a cylindrical member, and is in contact with the mounting portion of the holder 11A as shown, and positions the cutter wheel holder 10A.

When the cutter wheel holder 10A is attached to the holder joint 20, the cutter holder 10A is inserted from the mounting portion thereof into the opening 23 of the holder joint 20 as shown in FIG. In this way, the front end portion of the cutter wheel holder 10A is attracted by the magnet, and the mounting portion is positioned in contact with the parallel pin 25 to be positioned and fixed.

The cutter wheel holder 10A thus fixed to the holder joint 20 is freely rotatable together with the holding portion 22 around the central axes of the bearings 21a, 21b. Usually, the center shift of the scribing wheel 12A of the cutter wheel holder 10A is disposed at a fixed distance from the central axis of the bearings 21a, 21b. By this offset, even if the holding portion 22 changes in the direction of the scribing line, the scribing wheel 12A will be borrowed in such a manner as to continue toward the moving direction of the holder joint 20 and behind the center axis of the bearings 21a, 21b. Rotation is performed by the bearings 21a, 21b. Therefore, the scribing wheel 12A in the scribe line is rotated in the fixed direction.

Fig. 5 is a view schematically showing the configuration of the cutter wheel holder 10A. Fig. 5(a) is a front view, Fig. 5(b) is a side view, and Fig. 5(c) is a view showing the lower side. The X-axis direction indicated by an arrow in the figure indicates the horizontal direction of the paper surface, and the Y-axis direction indicates the upper and lower directions of the paper surface. The cutter wheel holder 10A of Figs. 5(a) and 5(b) is drawn such that the upper surface and the lower surface are parallel to the X-axis direction. The cutter wheel holder 10A has a holder 11A, a scribing wheel 12A, and a pin 13A.

The holder 11A is a cylindrical member formed of, for example, metal, and has a mounting portion formed by cutting a part of the upper portion as shown in Fig. 5(b). As shown in FIG. 5(a), the holder 11A has a holder groove 14. The holder groove 14 is, for example, about 0.67 mm wide and is formed to be parallel to the Y-axis direction. Further, the holder 11A has a pin hole 15A. The pin hole 15A is a circular through hole that penetrates the holder 11A in parallel with the X-axis direction and vertically intersects the holder groove 14. Further, the pin hole 15A has a step portion near the opening at the right end of Fig. 5(a). Because of this section, the opening of one side becomes smaller than the opening of the other side.

The scribing wheel 12A is formed of, for example, sintered diamond, for example, a disk-shaped member having a thickness of about 0.65 mm, and has a through hole at the center. Further, the scribing wheel 12A has a V-shaped blade along the outer peripheral portion, and the V-shaped blade leading edge is formed along the ridge line of the outer circumference of the scribing wheel 12A, and is located in the middle of the thickness direction of the scribing wheel 12A. The inclined faces (outer peripheral portions) on both sides of the ridge line generally intersect each other at an angle of 90 to 160 (convergence angle) to form a ridge line.

Fig. 6 is a view showing the pin 13A. The pin 13A is a cylindrical member formed of a metal such as a cemented carbide or sintered diamond, and has a pointed shape at one end. Further, a spiral groove is engraved on the surface of the pin 13A. The groove width and the groove depth of the spiral groove are each, for example, several μm.

The scribing wheel 12A is inserted into and held in the holder groove 14, and the pin 13A is inserted into the pin hole 15A and the through hole of the scribing wheel 12A from the pointed shape. The pin 13A is fixed to the pin hole 15A at a portion where the tip shape of the pin 13A is in contact with the segment located near the opening of one of the pin holes 15A. Thereby, the scribing wheel 12A is held in rotation by the pin 13A, and the cutter wheel holder 10A shown in FIG. 5 is obtained.

When the cutter wheel holder 10A is attached to the holder joint and further fixed to the scribing head, the scribing wheel 12A is brought into contact with the brittle material substrate, and the cutter holder 10A and the brittle material substrate are relatively moved. The wheel 12A rotates while moving along the blade holder 10A, and moves relative to the brittle material substrate to form a scribe line on the brittle material substrate. At this time, a sliding friction force is generated between the rotating scribing wheel 12A and the pin 13A, which is affected by the spiral groove on the surface of the pin 13A, so that the scribing wheel 12A goes along the pin 13A toward FIG. 5 (a). Move in the right direction. The moved scribing wheel 12A is moved to the side of the holder groove 14 as shown in Fig. 7, thereby continuing to form a scribe line.

In the present embodiment, if the scribing wheel 12A is in contact with the side surface of the holder groove 14, a gap of about 0.02 mm is generated between the scribing wheel 12A and the non-contact side surface, and the state is maintained during the rotation of the scribing wheel 12A. . Therefore, since the position of the scribing wheel 12A in the holder groove 14 is stabilized, the wobble of the right and left sides with respect to the traveling direction of the scribing wheel 12A disappears, and the position of the formed scribing line is stabilized.

Further, the inner wall of the through hole of the scribing wheel 12A of the present embodiment may be engraved with a spiral groove like the pin 13A. When the direction of the spiral groove is determined in consideration of the rotation direction of the scribing wheel 12A, the scribing wheel 12A can be more reliably moved to a position in contact with the side surface of the holder groove 14 and held.

Further, even if the spiral groove is formed in the inner wall of the through hole of the scribing wheel 12A, and the surface of the pin 13A is smoothed to constitute the cutter wheel holder 10A, the same effects as in the embodiment can be obtained.

(Second embodiment)

A cutter wheel holder according to a second embodiment of the present invention will be described with reference to Figs. 8 to 10 . The configuration of the scribing head of this embodiment is the same as that of the first embodiment. Fig. 8 is a front elevational view showing the configuration of the cutter wheel holder 10B of the embodiment. The cutter wheel holder 10B has a holder 11B, a scribing wheel 12A, and a pin 13B. The same components as those used in the first embodiment are denoted by the same reference numerals.

The holder 11B has substantially the same configuration as the holder 11A of the first embodiment, and has a holder groove 14 and a pin hole 15B. The pin hole 15B penetrates the holder 11B in the X-axis direction and vertically intersects the holder groove 14 in the same manner as the pin hole 15A of the first embodiment, but the shape is different from that of the pin hole 15A of the first embodiment. Shown as a cone. The pin hole 15B penetrating the holder 11 has a step portion in the vicinity of the opening at the right end of FIG. 8 similarly to the pin hole 15A of the first embodiment.

Fig. 9 is a view showing the pin 13B. The pin 13B is made of a metal such as a cemented carbide, a sintered diamond or the like, and is formed into a tapered shape, and the right end of the small diameter has a pointed shape. The inner diameter of the pin hole 15B and the outer diameter of the pin 13B are such that the pin 13B can be inserted into the pin hole 15B without a gap.

The cutter holder 10B is constituted by the holder 11B, the scribing wheel 12A, and the pin 13B. The scribing wheel 12A is inserted into the holder groove 14 and held, and the pin 13B is inserted into the pin hole 15B and the through hole of the scribing wheel 12A from the tip end portion thereof. The pin 13B is fixed to the pin hole 15B at a portion where the tip shape of the pin 13B contacts the segment located near the opening of the pin hole 15B. Thereby, the scribing wheel 12A is held freely by the pin 13B, thereby constituting the cutter wheel holder 10B shown in FIG.

When the cutter holder 10B is attached to the holder joint and further fixed to the scribing head, the scribing wheel 12A of the cutter holder 10B abuts against the brittle material substrate, and the cutter holder 10B and the brittle material substrate are provided. When the relative movement is performed, the scribing wheel 12A rotates while moving along the blade holder 10B, and moves relative to the brittle material substrate to form a scribe line on the brittle material substrate. At this time, the rotating scribing wheel 12A moves in the direction in which the diameter of the pin 13B in the right direction in the drawing is small. The moved scribing wheel 12A moves to the side of the holder groove 14 as shown in FIG. 10, and continues to form a scribe line.

Even in the present embodiment, the position of the scribing wheel 12A in the holder groove 14 is stabilized, so that the shaking of the left and right sides in the traveling direction of the scribing wheel 12A disappears, and the position of the formed scribing line is stabilized.

(Third embodiment)

A cutter wheel holder according to a third embodiment of the present invention will be described with reference to Figs. 11 to 13 . The configuration of the scribing head of this embodiment is the same as that of the first embodiment. Fig. 11 is a front elevational view showing the configuration of the cutter wheel holder 10C of the embodiment. The cutter wheel holder 10C has a holder 11C, a scribing wheel 12B, and a pin 13C. The same components as those used in the first embodiment are denoted by the same reference numerals.

The holder 11C has substantially the same configuration as the holder 11A of the first embodiment, and has a holder groove 14 and a pin hole 15C. The pin hole 15C is a circular through hole similar to the pin hole 15A of the first embodiment, but is displaced from the left side of the drawing toward the right side to the upper side in the Y-axis direction. As a result, in the two openings located on the surface of the holder 11C, the opening on the right side of the drawing is shifted to the upper side in the Y-axis direction than the opening on the left side of the drawing. Further, the pin hole 15C has a step portion in the vicinity of one of the two openings, similarly to the pin hole 15A of the first embodiment.

Although the pin 13C has the same shape as the pin 13A of the first embodiment, the surface does not have a spiral spiral groove, but is smooth as shown in FIG.

Although the scribing wheel 12B has the same configuration as that of the scribing wheel 12A of the first embodiment, it has a through hole having a larger diameter than the through hole of the scribing wheel 12A. By the through hole, the scribing wheel 12B can keep the scribing wheel free to rotate even if the pin 13C which is inclined in the X-axis direction passes through the through hole.

The cutter holder 10C is constituted by the holder 11C, the scribing wheel 12B, and the pin 13C. The scribing wheel 12B is held in the holder groove 14, and the pin 13C is inserted into the through hole of the pin hole 15C and the scribing wheel 12B from the portion having the pointed shape. The pin 13C is fixed to the pin hole 15C at a point where the tip portion of the pin 13C comes into contact with the segment located near the opening of the pin hole 15C. Thereby, the scribing wheel 12B is held freely by the pin 13C, and the cutter wheel holder 10C shown in FIG. 11 is formed.

When the cutter holder 10C is attached to the holder joint and further fixed to the scribing head, the scissor wheel 12B of the cutter holder 10C is abutted against the brittle material substrate, and the cutter holder 10C and the brittle material substrate are provided. When the relative movement is performed, the scribing wheel 12B rotates while moving along the blade holder 10C, and moves relative to the brittle material substrate to form a scribe line on the brittle material substrate. At this time, the rotating scribing wheel 12B moves toward the upper side in the Y-axis direction along the pin 13C. The moved scribing wheel 12B is moved toward the right side in the drawing as shown in FIG. 13 to the side where it contacts the side surface of the holder groove 14, and the scribing is continued.

Even in the present embodiment, the position of the scribing wheel 12B in the holder groove 14 is stabilized, so that the shaking of the left and right sides in the traveling direction of the scribing wheel 12B disappears, and the position of the formed scribing line is stabilized.

(Fourth embodiment)

A cutter wheel holder according to a fourth embodiment of the present invention will be described with reference to Figs. 14 to 16 . The configuration of the scribing head of this embodiment is the same as that of the first embodiment. The cutter wheel holder 10D has a holder 11A, a scribing wheel 12C, and a pin 13C. The holder 11A, the pin 13C, and the like are denoted by the same reference numerals as those used in the first and third embodiments.

The scribing wheel 12C is a member formed of, for example, a cemented carbide or sintered diamond. The scribing wheel 12C has a shape in which two truncated cones having mutually different bottom surfaces and different heights overlap each other on the bottom surface, and have two circular side faces 12a and 12b and a truncated cone side surface 12c, 12d. The side faces 12a, 12b have through holes penetrating the center. The curved surfaces 12c and 12d form a V-shaped blade, and a tangential line of the leading edge of the blade is formed on the tangent of the curved surfaces 12c and 12d. As shown in FIG. 14, the ridge line is not formed in the middle of the thickness direction of the scribing wheel 12C, but is formed close to the side surface 12a.

Fig. 15 is a cross-sectional view showing, in an enlarged manner, a cross section when the scribing wheel 12C is cut by the plane passing through the central axis of the through hole of the side faces 12a, 12b. Fig. 15 shows curved surfaces 12c and 12d and through holes. The dotted line is the ridgeline hidden behind the paper. The dotted line in Fig. 15 coincides with the position of a plane including a ridge line (not shown, hereinafter referred to as a ridge surface). The angle of the line formed by the portion perpendicular to the ridge surface, that is, the portion parallel to the surface of the paper surface of Fig. 15 and the curved surface 12c, is θ1 with respect to the ridge surface. Further, the angle of the line formed by the portion which is parallel to the surface of the paper surface of Fig. 15 and the curved surface 12d with respect to the ridge plane is θ2. The scribing wheel 12C is configured such that the angle θ1 is equal to the angle θ2.

Further, the line formed by the portion perpendicular to the ridge surface and the curved surface 12c and 12d is linear at least at the intersection with the ridge surface, so that the angle θ1 and the angle θ2 can be defined.

The cutter holder 10D is constituted by the holder 11A, the scribing wheel 12C, and the pin 13C. The scribing wheel 12C is inserted and held in the holder groove 14, and the pin 13C is inserted into the through hole of the pin hole 15A and the scribing wheel 12C from the portion having the pointed shape. The pin 13C is fixed to the pin hole 15A at a point where the tip portion comes into contact with the segment located near the opening of the pin hole 15A. Thereby, the scribing wheel 12C is held freely by the pin 13C, and the cutter wheel holder 10D shown in FIG. 14 is formed.

When the cutter holder 10D is attached to the holder joint and further fixed to the scribing head, the cutter wheel holder 12D is abutted against the brittle material substrate while the cutter wheel holder 10D abuts the brittle material substrate, and the cutter holder 10D and the brittle material substrate are provided. When the relative movement is performed, the scribing wheel 12C rotates while moving along the blade holder 10D, and relatively moves on the brittle material substrate to form a scribe line on the brittle material substrate. At this time, since the rotating scribing wheel 12C has no ridgeline of the leading edge of the blade in the middle of the thickness direction, it moves along the pin 13C toward the side surface close to the ridge line. The moved scribing wheel 12C is moved to the side opposite to the side surface of the holder groove 14 as shown in Fig. 16 in the direction of the side surface 12a on the right side in the drawing, and the scribing is continued.

Even in the present embodiment, the position of the scribing wheel 12C in the holder groove 14 is stabilized, so that the shaking of the left and right sides in the traveling direction of the scribing wheel 12C disappears, and the position of the formed scribing line is stabilized.

The first modification of the scribing wheel 12C will be described. Fig. 17 (a) is an enlarged view of the scribing wheel 12D of the first modification. The scribing wheel 12D is a member formed of, for example, a cemented carbide or sintered diamond. The scribing wheel 12D has a shape in which two truncated cones having the same bottom surface and equal heights are overlapped on the bottom surface, and have two circular side faces 12e and 12f and a curved surface 12g as a truncated cone side surface. 12h. The side faces 12e and 12f have cylindrical through holes at the center. The curved surfaces 12g and 12h are formed with a V-shaped blade, and a tangential line of the leading edge of the blade is formed on the tangent of the curved surfaces 12g and 12h. This ridge line is formed in the middle of the thickness direction of the scribing wheel 12D as shown in Fig. 17 (a).

Fig. 17 (b) is an enlarged cross-sectional view showing a cross section when the scribing wheel 12D is cut by the plane passing through the central axis of the through hole of the side faces 12e, 12f. Fig. 17 (b) shows curved surfaces 12g, 12h and through holes. The dotted line is the ridgeline hidden behind the paper. The dotted line of Fig. 17(b) coincides with the position of the ridge line surface (not shown), and the angles of the opposite ridge surfaces of the two lines formed by the portion perpendicular to the ridge line surface and the curved surface 12g, 12h are respectively set to an angle. Θ3, angle θ4. The scribing wheel 12D is configured such that the angle θ3 is different from the angle θ4. In FIG. 17(b), θ3<θ4, for the angle θ3 and the angle θ4, for example, the angle θ3 can be set to 45° to 65° (for example, 55°), and the angle θ4 can be set to 55° to 75° (for example, 65°). ).

When the scribing is formed, even if the scribing wheel 12D is used instead of the scribing wheel 12C, the scribing wheel 12D moves along the pin 13C in the direction of the side surface 12e on the right side of the drawing, so that the same as the scribing wheel 12C can be obtained. effect.

A second modification of the scribing wheel 12C will be described. Fig. 18 (a) is an enlarged view of the scribing wheel 12E of the second modification. The scribing wheel 12E is a member formed of, for example, a cemented carbide or sintered diamond. The scribing wheel 12E has a shape in which two truncated cones having mutually identical bottom faces and different heights overlap each other on the bottom surface, and have two circular side faces 12i and 12j and a truncated cone side surface 12k, 121. The side faces 12i and 12j have cylindrical through holes at the center. The curved surfaces 12k and 121 are formed with a V-shaped blade, and a tangential line of the leading edge of the blade is formed on the tangent of the curved surfaces 12k and 121. As shown in FIG. 18, the ridge line is not formed in the middle of the thickness direction of the scribing wheel 12E, but is formed close to the side surface 12i.

Fig. 18 (b) is an enlarged cross-sectional view showing a cross section when the scribing wheel 12E is cut by the plane passing through the central axis of the through hole of the side faces 12i, 12j. Fig. 18(b) shows curved surfaces 12k and 121 and through holes. The dotted line is the ridgeline hidden behind the paper. The dotted line in Fig. 18(b) coincides with the position of the ridge surface (not shown), and the angles of the two lines formed on the portion perpendicular to the surface of the ridge line and the curved surfaces 12k and 121 are set to be opposite to the ridge surface. Angle θ5, angle θ6. The scribing wheel 12E is configured such that the angle θ5 is different from the angle θ6. In FIG. 18(b), θ5<θ6, for the angle θ5 and the angle θ6, for example, the angle θ5 can be set to 45° to 65° (for example, 55°), and the angle θ6 can be set to 55° to 75° (for example, 65°). ).

When the scribing line is formed, even if the scribing wheel 12E is used instead of the scribing wheel 12C, the scribing wheel 12E moves along the pin 13C in the direction of the side surface 12i on the right side of the drawing, so that the same effect as the scribing wheel 12C can be obtained. .

Further, the inner wall of the through hole of the scribing wheels 12C to 12E of the present embodiment may be a spiral groove similar to the pin 13A of the first embodiment. Thereby, it is possible to surely move the scribing wheels 12C to 12E to the side where they are in contact with the side surface of the holder groove 14.

Further, instead of the pin 13C of the smooth surface of the present embodiment, the pin 13A of the first embodiment can be used. Thereby, it is possible to surely move the scribing wheels 12C to 12E to the side where they are in contact with the side surface of the holder groove 14.

Needless to say, the thickness of the scribing wheel and the width of the holder groove as exemplified in the first to fourth embodiments are not limited to this example and can be arbitrarily selected.

The cutter wheel holders according to the first to fourth embodiments are not limited to the automatic scribing device for automatically scribing the brittle material substrate, and may be attached to a brittle material cutting tool for manually cutting a brittle material substrate.

[Industrial availability]

The present invention can stabilize the position of the scribing wheel in the scribing, and can be used for a scribing device for automatically scribing or a brittle material cutting tool for manually cutting a brittle material substrate.

1. . . Dash head

10A~10D, 100. . . Knife wheel holder

11A～11C, 101. . . Holder

12a, 12b, 12e, 12f, 12i, 12j. . . side

12c, 12d, 12g, 12h, 12k, 121. . . Surface

12A~12E, 102. . . Scribing wheel

13A～13C, 103. . . pin

14, 104. . . Hold slot

15A～15C, 105. . . Pin hole

20. . . Holder connector

21a, 21b. . . Bearing

twenty two. . . Holding department

twenty three. . . Opening

twenty four. . . magnet

25. . . Parallel pin

Θ1, θ2, θ3, θ4, θ5, θ6. . . angle

Fig. 1 is a view showing the configuration of a conventional cutter wheel holder.

Fig. 2 is a view showing the configuration of a scribing head according to the first embodiment of the present invention.

Fig. 3 is a view showing the configuration of a holder unit according to the first embodiment of the present invention.

Fig. 4 is a view showing a state in which the holder of the holder according to the first embodiment of the present invention is inserted into the holder holder.

Fig. 5 is a view showing the configuration of a cutter wheel holder according to the first embodiment of the present invention.

Fig. 6 is a view showing a pin for a cutter wheel holder.

Fig. 7 is a view showing movement of a scribing wheel of the cutter wheel holder according to the first embodiment of the present invention.

Fig. 8 is a view showing the configuration of a cutter wheel holder according to a second embodiment of the present invention.

Fig. 9 is a view showing a pin for a cutter wheel holder.

Fig. 10 is a view showing movement of a scribing wheel of a cutter wheel holder according to a second embodiment of the present invention.

Fig. 11 is a view showing the configuration of a cutter wheel holder according to a third embodiment of the present invention.

Figure 12 is a view showing a pin for a cutter wheel holder.

Fig. 13 is a view showing the movement of the scribing wheel of the cutter wheel holder according to the third embodiment of the present invention.

Fig. 14 is a view showing the configuration of a cutter wheel holder according to a fourth embodiment of the present invention.

Fig. 15 is a view showing, in an enlarged manner, a cross section of a scribing wheel 12C according to a fourth embodiment of the present invention.

Fig. 16 is a view showing the movement of the scribing wheel of the cutter wheel holder according to the fourth embodiment of the present invention.

Fig. 17 is a view showing, in an enlarged manner, a scribing wheel 12D according to a first modification of the fourth embodiment of the present invention and a cross section thereof.

Fig. 18 is an enlarged view showing a scribing wheel 12E and a cross section thereof according to a second modification of the fourth embodiment of the present invention.

10A. . . Knife wheel holder

11A. . . Holder

12A. . . Scribing wheel

13A. . . pin

14. . . Hold slot

15A. . . Pin hole

Claims (9)

A cutter wheel holder comprising: a scribing wheel having a circular plate shape and having a through hole at a center thereof; and having two curved surfaces forming a leading edge of a ridge line having a V-shape along an outer peripheral portion of the circular plate; and a holder; a retainer groove having a width wider than a thickness of the scribing wheel for inserting the scribing wheel, a pin hole penetrating through the forming portion of the retainer groove, and a pin hole and the scribing wheel inserted into the pin hole and the scribing wheel a through hole and a pin for rotating the scribing wheel in the holder groove; wherein the scribing wheel is maintained in the scribe line by one of the holder grooves by rotation of the scribing wheel The side moves and abuts. The cutter wheel holder according to claim 1, wherein the pin is cylindrical and has a spiral groove along an outer circumference thereof. The cutter wheel holder of claim 1, wherein the pin is cylindrical and tapered. The cutter wheel holder according to claim 1, wherein the pin hole of the holder is formed to be inclined in a vertical direction. The cutter wheel holder according to claim 1, wherein the scribing wheel has a blade leading edge, and the leading edge of the blade is between the two side faces having the through hole, and is closer to a positive side in the thickness direction The sides have a V-shaped ridgeline. The cutter wheel holder of claim 1, wherein the scribing wheel is perpendicular to the ridge line and is perpendicular to the ridge line by a line perpendicular to the ridge surface and intersecting the curved surface of the one surface Face and face The angle formed by the intersection of the other curved surfaces is different with respect to the angle of the ridge plane. The cutter wheel holder according to any one of claims 1 to 6, wherein the scribing wheel has a spiral groove along a wall surface of the through hole of the scribing wheel. A holder unit having a cutter holder according to any one of claims 1 to 7, and a holder joint for mounting the cutter holder, wherein the holder has And a holding portion attached to the bearing, wherein the cutter holder is held such that the scribing wheel train of the cutter holder is disposed at a fixed distance from a central axis of the bearing. A scribing method for use in the cutter wheel according to claim 1, wherein the scribing wheel is moved toward the side surface of one of the holder grooves by the rotation of the scribing wheel in the scribing.