TW201546002A - Holder, holder unit and scribing device - Google Patents

Abstract

The present invention discloses a holder, a holder unit and a scribing device, which are designed to cope with the problem of the forming position deviation of scribing line owing to the shift of the scribing wheel in the pin shaft direction, so as to stabilize the forming position of the scribing line and cause no deviation of scribing line from the desired position. The holder unit 30 of this invention comprises a scribing wheel 40 of strong magnetism, a pin shaft 50 penetrating the through hole 41 of the scribing wheel, and a holder 60. The holder 60 has a pair of holding portions 62a, 62b, and pin holes 65a, 65b located coaxially and formed respectively on the holding portions for the insertion of pin shaft. In the holding portion 62a, a magnet 75 is received along the pin shaft direction to attract the scribing wheel.

Description

Holder, holder unit and scoring device

The present invention relates to a holder, a holder unit, and a scoring apparatus used for forming a score line on a surface of a brittle material substrate in the division of a brittle material substrate such as a glass substrate.

When a brittle material substrate such as a glass substrate is divided into a desired size, a scribing device is generally used. The scoring device is used in a holder for holding a scoring wheel to mount a scoring wheel. Further, the scribing wheel is inserted between the holding portions (holding grooves) by inserting a cylindrical pin in a pin hole formed in the holding portion of the holder and a through hole formed in a side surface of the scoring wheel. .

Further, the scribe wheel mounted on the holder is rotatably held, and is advanced while moving on the surface of the brittle material substrate to form a scribe line on the brittle material substrate. In addition, as such a scribing device, for example, there is a scribing device as described in Patent Document 1.

Patent Document 1: International Patent Publication No. WO2007/063979

It is necessary to rotate the holding groove in order to form the score line as described above, which is mounted on the retainer. However, the width of the retaining groove is slightly wider than the thickness of the scoring wheel to ensure clearance between the scoring wheel and the retaining portion. Specifically, in the case where the thickness of the scoring wheel is 0.65 mm, the width of the holding groove is about 0.02 mm wider than that. In this way, the scoring wheel is kept freely rotatable by the presence of a clearance between the scoring wheel and the holding portion.

On the other hand, due to the clearance, the scoring wheel will move along the pin axis in the retaining groove. Move about 0.02mm. Therefore, when the scribe line is formed, the scribe wheel moves in the direction of the pin axis, and the formation position of the scribe line is unstable. In the conventional scoring device, the scribe line is deviated from the desired position. The problem.

The present invention is based on the above-described scoring wheel moving in the direction of the pin to scribe The problem that the position of the line is deviated is completed, and an object thereof is to provide a holder, a holder unit, and a scribing device that can stabilize the formation position of the score line without causing deviation from the desired position.

In order to achieve the above object, a holder of the present invention includes a pair of holding portions, and a pin hole that is coaxially formed and formed in the holding portion, and is used to rotatably hold the scoring wheel by a through hole penetrating through the through hole of the scoring wheel and inserted through the pin hole Between the holding portions, when the scribing wheel is held, an accommodating portion that accommodates a magnet that attracts the scribing wheel in the direction of the pin is formed in one of the holding portions.

According to the holder of the present invention, when the magnetic wheel is held in the holder At this time, the scoring wheel is attracted to one side by a magnet. Thereby, the situation in which the scoring wheel moves in the pin axis direction due to the clearance between the scoring wheel and the holding portion is restricted. Therefore, the holder can stabilize the formation position of the score line.

The holder of the present invention may be configured such that the receiving portion is formed to overlap the pin hole The location.

According to this configuration, it is possible to attract and scribe by the magnet housed in the accommodating portion. The center of the side of the wheel, so the holder can make the scoring wheel stand upright. Therefore, the holder can form a score line which rarely causes so-called fission (skew).

Further, the holder unit of the present invention is provided with a scoring wheel of a ferromagnetic body, a pin extending through the through hole of the scribing wheel, and a holder having a pair of holding portions for holding the scoring wheel, and being coaxially formed and respectively formed on the holding portion and for inserting the pin The pin hole is characterized in that a magnet that attracts the scribing wheel in a direction of the pin is accommodated in one of the holding portions.

According to the holder unit of the present invention, the scoring wheel is turned to one side by the magnet Since the suction is restricted, the scribe wheel is moved in the pin axis direction due to the clearance between the scribe wheel and the holding portion. Therefore, the holder unit can stabilize the formation position of the score line.

In the holder unit of the present invention, the magnet may be housed in a position overlapping the pin.

According to this configuration, since the center of the side surface of the scoring wheel can be attracted by the magnet, the holder unit can stand the scoring wheel upright. Therefore, the holder unit can form a score line that rarely produces debris.

Further, in the holder unit of the present invention, the magnet may be housed in a position where a side surface of the scribing wheel overlaps the holding portion.

According to this configuration, since the entire area of the side surface of the scribing wheel and the holding portion can be uniformly attracted by the magnet, the holder unit can surely erect the scoring wheel. Therefore, the holder unit can form a score line which rarely produces fission (skew).

Further, the holder unit of the present invention may be configured such that the pin shaft is short on the magnet side.

According to this configuration, since the distance between the scribing wheel and the magnet is close, the holder unit can restrict the scoring wheel to the pin axis direction due to the clearance between the scoring wheel and the holding portion. The effect of moving is even more effective. Therefore, the holder unit can make the formation position of the score line more stable.

Further, the scoring device of the present invention is characterized in that it has the above-described holder. Further, the scoring device of the present invention is characterized in that it has the above-described holder unit.

According to the scoring device of the present invention, it is possible to limit the gap between the scoring wheel and the retaining portion The gap causes the scoring wheel to move in the pin direction. Therefore, the scoring device can stabilize the formation position of the score line.

1‧‧‧ scoring device

10‧‧‧Mobile Station

11‧‧‧Ball screw

12‧‧‧ Guide rails

13‧‧‧Motor

14‧‧‧ platform

15‧‧‧Battery material substrate

16‧‧‧CCD camera

17‧‧‧ Bridge

18a, 18b‧‧ ‧ pillar

19‧‧‧Guide

20‧‧‧Scratch

30, 130, 230 ‧ ‧ holding unit

40, 140, 240‧‧‧ marking wheels

41‧‧‧through holes

42, 142, 242‧‧‧ round side

43‧‧‧ Blade

50, 150, 250‧‧ ‧ pin

51‧‧‧ pointed head

60, 160, 260‧‧‧ holders

61,161,261‧‧‧holding substrate

62a, 62b, 162a, 162b, 262a, 262b‧‧‧ Keeping Department

63, 163, 263 ‧ ‧ keep slots

64a, 64b, 264a, 264b‧‧‧ cylinder

65a, 65b, 165a, 165b, 265a, 265b‧‧ pin holes

66a, 66b, 166a, 266a, 266b‧‧‧ retaining walls

67,167, 267‧‧‧

68, 268‧‧‧ mounting holes

69, 269‧‧‧ bolt mounting holes

70a, 70b, 270a, 270b‧‧‧ screw holes

71, 73a, 73b‧‧‧ fixing bolts

72, 74‧‧‧stops

75, 175, 275‧‧‧ magnets

76‧‧‧Cylinder mounting holes

170‧‧‧Installation Department

170a‧‧‧ inclined section

170b‧‧‧flat

200‧‧‧Holding connector

201‧‧‧Rotary shaft

202‧‧‧Connector

203a, 203b‧‧‧ bearing

204‧‧‧ spacer

Fig. 1 is a schematic view showing a scribing apparatus of the first embodiment.

Fig. 2(A) is a front view of the holder unit of the first embodiment; Fig. 2(B) is a left side view; Fig. 2(C) is a right side view; and Fig. 2(D) is a bottom view.

Fig. 3(A) is a right side view showing a state in which the retainer unit of the first embodiment is removed, and Fig. 3(B) is a cross-sectional view taken along line IIIB-IIIB of Fig. 3(A).

Fig. 4 is a view showing an assembly procedure of the holder unit of the first embodiment; Fig. 4(A) is a right side view of the holder unit; Fig. 4(B) is a left side view; and Fig. 4(C) is a diagram of Fig. 4(A) Sectional view of the IVC-IVC line.

Figure 5 (A) is a side view of the holder unit of Embodiment 2 and a holder joint to which the holder unit is attached; Figure 5 (B) is a perspective view of the holder unit; Figure 5 (C) is before the holder unit Click on the magnified image.

Fig. 6(A) is a side view of the holder unit of the third embodiment; Fig. 6(B) is a sectional view taken along line VIB-VIB of Fig. 6(A).

Hereinafter, embodiments of the present invention will be described using the drawings. However, the embodiment shown below is an example of a technical idea for embodying the present invention, and the present invention is not intended to be specific to the embodiment. The invention is also applicable to other embodiments encompassed by the scope of the claims.

[Embodiment 1]

Fig. 1 is a schematic view of a scoring apparatus 1 according to an embodiment of the present invention. The scribing device 1 is provided with a mobile station 10. The moving table 10 is screwed to the ball screw 11, and the ball screw 11 is rotated by the driving of the motor, whereby the pair of guide rails 12 can be moved in the y-axis direction.

Above the mobile station 10, a motor 13 is provided. The motor 13 rotates the upper platform 14 in the xy plane to be positioned at a predetermined angle. The stage 14 which is horizontally rotatable by the motor 13 is provided with a vacuum suction means (not shown), and the brittle material substrate 15 placed on the stage 14 is held by the vacuum suction means.

The brittle material substrate 15 is a glass substrate, a ceramic substrate made of a low-temperature fired ceramic or a high-temperature fired ceramic, a tantalum substrate, a compound semiconductor substrate, a sapphire substrate, a quartz substrate, or the like. Further, the brittle material substrate 15 may be attached to or contained on the surface or inside of the substrate. Further, the brittle material substrate 15 may have a film or the like which is not a brittle material adhered to the surface thereof.

The scribing device 1 is provided with two CCD cameras 16 for photographing alignment marks formed on the surface of the brittle material substrate 15 above the brittle material substrate 15 placed on the stage 14. The bridge 17 is erected in a manner spanning the platform 10 of the mobile station 10 and its upper portion. Columns 18a, 18b.

A guide 19 is attached to the bridge 17, and the scribing head 20 is disposed to be guided by the guide 19 to move in the x-axis direction. At the lower end of the scribing head 20, a holder unit 30 is attached, which holds the scoring wheel 40 in the holder 60.

Here, the step of forming the scribe line on the brittle material substrate 15 using the scribing device 1 will be roughly described. First, the scoring wheel 40 is mounted on the holder 60 mounted to the scribing head 20. Then, the scribing device 1 performs positioning of the brittle material substrate 15 by a pair of CCD cameras 16. Next, the scribing device 1 moves the scribing head 20 to a predetermined position, applies a predetermined load to the scribing wheel 40, and brings it into contact with the brittle material substrate 15. Then, the scribing device 1 forms a predetermined score line on the surface of the brittle material substrate 15 by moving the scribing head 20 in the X-axis direction. Further, the scribing device 1 can rotate the table 14 in the Y-axis direction as needed, and form a score line in the same manner as described above.

Next, the details of the holder unit 30 will be described using a drawing. 2 is a front view (A), a left side view (B), a right side view (C), and a bottom view (D) of the holder unit 30. 3(A) is a right side view showing a state in which the retainer unit 30 is removed from the stopper 74, and FIG. 3(B) is a cross-sectional view taken along line IIIB-IIIB of FIG. 3(A).

The holder unit 30 is formed by integrating the scoring wheel 40, the pin shaft 50, and the holder 60.

The scribing wheel 40 is, for example, a disc-shaped member formed of sintered diamond or cemented carbide. Further, the scoring wheel 40 itself is a ferromagnetic body that can be attracted by the magnet by a ferromagnetic material such as cobalt contained in a sintered diamond or a combination of superhard alloys.

In addition, in the scoring wheel 40, a supply for the pin is formed at the center of the side surface 42 of the disc The through hole 41 through which the shaft 50 passes. Further, in the scribing wheel 40, a V-shaped blade 43 forming a ridge line is formed in the outer peripheral portion. Further, the scribe wheel 40 of the present embodiment has a thickness of about 0.65 mm, an outer diameter of about 2.0 mm, a diameter of the through hole 41 of about 0.8 mm, and a tip end angle of the blade 43 of about 130 degrees.

Further, the scoring wheel 40 may be formed of a single crystal diamond or a polycrystalline diamond in addition to being formed of sintered diamond or super hard alloy. In the case of the scribe wheel 40 composed of a single crystal diamond or a polycrystalline diamond, for example, a member for forming a ferromagnetic material on the side surface 42 of the circular plate may be used to make the scribe wheel 40 have a magnet The nature of attraction.

The pin shaft 50 is, for example, a cylindrical member formed of sintered diamond or cemented carbide, and has a tip end 51 having a pointed shape at one end as shown in Fig. 3(B).

The holder 60 is composed of a holder base material 61 which is not magnetic, for example, an angling member formed of SUS303.

As shown in FIG. 2(C), the holder base material 61 has a trapezoidal shape that is narrowed toward the lower side as viewed from the side. The ladder-shaped portion of the holder base material 61 is opened downward in a front view as shown in Fig. 2(A), and a pair of holding portions 62a and 62b and a holding groove 63 between the holding portions 62a and 62b are formed.

Further, in the holding portions 62a and 62b, the cylindrical bodies 64a and 64b are fixed to the coaxial position by welding. Further, in the cylindrical bodies 64a and 64b, pin holes 65a and 65b through which the pin shaft 50 is inserted are formed at the coaxial position. Therefore, the disc side surface 42 of the scoring wheel 40 is opposed to the cylindrical body 64a of the holding portion 62a and the cylindrical body 64b of the holding portion 62b, and the opposing surface of the cylindrical body 64a opposed to the disc side surface 42 is maintained. The wall 66a and the opposing surface of the cylindrical body 64b opposed to the circular plate side surface 42 serve as the holding wall 66b. In addition, the details will be described below with respect to the cylinders 64a, 64b.

Further, the holding portion 62a is formed on the right side of the holder base material 61. The housing portion 67 is a circular recess. The magnet 75 described below is housed in the accommodating portion 67. Further, the size of the accommodating portion 67 is a circle having a diameter of 4 mm.

Further, in the holder base material 61, a mounting hole 68 is formed in the upper portion, and the holder 60 is passed through the mounting hole 68 to be attached to the scribe head 20 of the scoring device 1. Further, on the left side surface of the holder base material 61, a bolt attachment hole 69 that penetrates the holder base material 61 and reaches the right side surface is formed. Further, on the right side surface of the holder base material 61, two screw holes 70a and 70b are formed.

Further, the holder 60 includes a fixing bolt 71 attached to the bolt mounting hole 69 and a stopper 72 fixed to the left side surface of the holder base 61 by a fixing bolt 71. The stopper 72 is for blocking the pin hole 65b.

Further, the holder 60 is provided with fixing bolts 73a and 73b respectively attached to the two screw holes 70a and 70b, and a stopper 74 fixed to the right side surface of the holder base 61 by fixing bolts 73a and 73b. The stopper 74 is for closing the accommodating portion 67 and preventing the magnet 75 accommodated in the accommodating portion 67 from falling out.

Using the holder 60 as described above, the holder unit 30 is formed by penetrating the pin 50 toward the through hole 41 of the scribing wheel 40 and inserting the pin 50 into the pin holes 65a and 65b of the holding portions 62a and 62b. .

Further, in the holder unit 30, the magnet 75 is housed in the circular housing portion 67. The magnet 75 has a substantially the same size as the accommodating portion 67 and has a circular shape with a diameter of 4 mm. The magnet 75 is used to attract the scoring wheel 40 of the ferromagnetic body. Further, by the magnet 75, the scribing wheel 40 is attracted to the holding portion 62a side, and the disc side surface 42 is brought into contact with the holding wall 66a.

Therefore, the clearance between the disc side surface 42 of the scoring wheel 40 and the retaining wall 66a is zero, and since the movement of the scoring wheel 40 along the pin 50 is restricted when the scribing line is formed, the scribing is performed. Setting 1 enables the formation position of the score line to be stabilized, and the score line is formed at a desired position. On the other hand, by adjusting the force by which the scoring wheel 40 is attracted by the magnet 75, it is possible to form the score line without hindering the rotation of the scoring wheel 40. In order to reduce the friction between the disc side surface 42 of the scoring wheel 40 and the retaining wall 66a, the surface roughness of one or both of the disc side surface 42 and the retaining wall 66a may be set to be small, or a diamond-like formation may be formed. A film that enhances lubricity, such as diamond-like carbon.

Further, the accommodating portion 67 formed in the holding portion 62a is formed at a position overlapping the pin hole 65a formed in the holding portion 62a. Therefore, the magnet 75 accommodated in the accommodating portion 67 becomes the periphery of the through hole 41 of the scribe wheel 40 through which the attraction pin 50 passes, and can attract the center of the disc side surface 42 of the scribing wheel 40, and can make the scribing wheel 40 Surely erect.

However, when the score line is formed in a state where the scribing wheel 40 is inclined, a phenomenon in which a crack is formed in a direction inclined with respect to the thickness direction of the substrate is called a so-called fission (skew) phenomenon. Further, once fission occurs, the cut surface of the brittle material substrate 15 is also inclined, and it is impossible to break at a desired position. However, in the holder unit 30 of the present embodiment, since the scribing wheel 40 is erected, it is possible to form a scribing line in which fission is hard to occur.

Further, as shown in FIG. 3(B), the pin shaft 50 has a shorter length from the scribing wheel 40 than the side of the holding portion 62b in which the holding portion 62a of the magnet 75 is accommodated. Therefore, on the side of the holding portion 62a, since the scribing wheel 40 is close to the magnet 75, the scribing wheel 40 can be more reliably attracted. Therefore, since the movement of the scribing wheel 40 along the pin shaft 50 can be more reliably restricted, the scoring device 1 can more reliably form the scribing line at a desired position.

Next, the assembly steps of the holder unit 30 will be described using a drawing. 4(A) is a right side view of the assembly step of the holder unit 30, FIG. 4(B) is a left side view, and FIG. 4(C) is a cross-sectional view taken along line IVC-IVC of FIG. 4(A).

In the first step, the holder base material 61 on which the holding groove 63 is formed is used, and the cylindrical mounting hole 76 on the lower end side of the holder base material 61 is used to fix the cylindrical body 64 by welding, and the lower portion of the holder base material 61 is cut. The ladder shape shown in the figure (step 1). The cylinder 64 is made of sintered diamond or super hard alloy. Further, the cutting of the holder base material 61 may be performed by any processing such as wire-cut electrical discharge machining or cutting. Further, at the time of cutting of the holder base material 61, one portion of the lower side of the cylindrical body 64 is simultaneously cut.

In the next step, a wire of a wire-cut electric discharge machine (not shown) is passed through a bolt mounting hole 69 formed in the holder base material 61 so that the wire passes along the bolt mounting hole 69 to the cylindrical body 64. The rail R moves to form a circular hole which becomes a pin hole 65a, 65b at the center of the cylinder 64, and the center of the cylinder 64 is cut off in accordance with the thickness of the scoring wheel 40 (step 2). By this step, the pin holes 65a, 65b are formed at the coaxial position of the holder base material 61. Further, as a general procedure, the steps described in JP-A-2011-240540 can be specifically employed.

In the next step, in the holding portion 62a of the holder base material 61, a portion of the holder base material 61 is removed by electric discharge machining from the surface side of the right side surface to form a housing portion composed of a circular recess having a diameter of 4 mm. 67 (Step 3). Further, the accommodating portion 67 is formed in a region including the cylindrical body 64a and the pin hole 65a. Further, the formation of the accommodating portion 67 is not limited to the electric discharge machining.

In the next step, the pin 50 is passed through the through hole 41 of the scribing wheel 40, and is attached to the holding portions 62a, 62b of the holder 60, and the stopper 72 is attached by the fixing bolt 71 of the bolt mounting hole 69. , the pin hole 65b is closed (step 4). At the same time, the stopper 74 is fixed by the fixing bolts 73a, 73b attached to the screw holes 70a, 70b. Further, the stopper 74 is rotatable in a state in which the fixing bolts 73a and 73b are loosened, and the accommodating portion 67 can be exposed by the rotation. Further, in step 4, the state in which the stopper 74 has been rotated is illustrated. Further, as the stopper 74 as described above, a stopper described in Japanese Laid-Open Patent Publication No. 2013-245145 can be specifically used.

In the next step, the magnet 75 is housed in the accommodating portion 67 (step 5). Further, in the final step, the accommodating portion 67 in which the magnet 75 is housed is closed by the stopper 74 (step 6). Through such a procedure, the holder unit 30 is assembled.

Then, when the holder unit 30 assembled by such a procedure is used for the scoring apparatus 1 and the score line is formed, since the movement of the scoring wheel 40 along the pin 50 is restricted, the scoring apparatus 1 is thus limited. The position of the scribe line can be stabilized, and the scribe line is formed at a desired position.

Further, as described above, in the present embodiment, the holder unit 30 has a thickness of about 0.65 mm and a clearance of about 0.02 mm from the holding walls 66a and 66b, so that it can be formed at a desired position. line. Here, the formation of the scribe line may be performed by using the holder unit 30 of the scribe wheel having a thickness of about 0.4 mm of the scribe wheel 40 while maintaining the gap between the holding walls 66a and 66b. Although the clearance is extremely large compared to the holder unit 30 having the thickness of the scoring wheel 40 of 0.65 mm, the movement of the scoring wheel 40 in the direction of the pin axis is generally large, but even the scoring wheel 40 A holder unit having a thickness of 0.4 mm can also form a score line at a desired position. At this time, the amount of deviation of the scribe line is only about 10 μm. On the other hand, in the case of the conventional holder unit which does not have the accommodating portion 67, when the scribe line is formed using the thickness of the scribe wheel of 0.4 mm, the movement of the scribe wheel in the direction of the pin axis is large, and the scribe is scribed. The deviation of the line is also about 224 μm.

[Embodiment 2]

Next, the holder unit 130 of another embodiment will be described using a schematic diagram. Figure 5 (A) is a form FIG. 5(B) is a perspective view of the holder unit 130, and FIG. 5(C) is a front view enlarged view of the holder unit 130. FIG. 5(B) is a perspective view of the holder unit 130. .

The holder joint 200 includes a cylindrical rotating shaft portion 201 and a cylindrical joint portion 202. The holder joint 200 is attached to the scribing head of the scoring device for use. Further, in a state in which the holder joint 200 is attached to the scribing head, the rotating shaft portion 201 is attached through the two bearings 203a and 203b which have the cross section, and the cylindrical spacer 204 which has the cross section. The holder joint 200 is kept freely rotatable.

The cylindrical joint portion 202 is formed with an inner space 206 having a circular opening 205 on the lower end side. In the upper portion of the internal space 206, for example, a magnet is embedded, and the holder unit 130 is held detachably.

The holder unit 130 is formed by integrating the scribing wheel 140, the pin shaft 150, and the holder 160. In addition, the scribing wheel 140 and the pin shaft 150 have substantially the same configuration as the scribing wheel 40 of the first embodiment and the pin shaft 50, and detailed description thereof will be omitted.

The holder 160 is formed of a holder base material 161 made of a substantially cylindrical magnetic metal. A pair of holding portions 162a and 162b and a holding groove 163 between the holding portions 162a and 162b are formed in a lower portion of the holder base material 161. In the holding portions 162a and 162b, pin holes 165a and 165b through which the pin shaft 150 is inserted are formed at the coaxial position.

Further, in the holding portion 162a, a housing portion 167 which is recessed in a circular shape from the side surface of the holder base material 161 is formed. A magnet 175 is housed in the housing portion 167. Further, the pin hole 165b of the holding portion 162b has a small diameter on the side surface side, and has a structure in which the pin 150 does not come out. Further, the accommodating portion 167 in which the magnet 175 is housed is closed by a stopper (not shown).

A mounting portion 170 for positioning is provided on the upper portion of the holder base material 161. The mounting portion 170 is formed by cutting the upper portion of the holder base material 161, and includes an inclined portion 170a and a flat portion 170b.

Further, the side of the mounting portion 170 of the holder 160 is inserted into the internal space 206 through the opening 205. At this time, the upper end side of the holder 160 is attracted by the magnet of the upper portion of the internal space 206, and the positioning of the holder unit 130 with respect to the holder joint 200 is performed by the inclined portion 170a of the mounting portion 170 contacting the parallel pin 207 passing through the internal space 206. With fixed. Further, when the holder unit 130 is taken out from the holder joint 200, the holder 160 can be easily taken out by pulling it downward.

In the same manner as the holder unit 30 of the first embodiment, the magnet 175 can attract the scribing wheel 140 toward the holding portion 162a, and the disc side of the scribing wheel 140 can be made. The clearance between 142 and retaining wall 166a becomes zero. Therefore, when the scribe line 130 is formed, since the movement of the scribe line 140 along the pin 150 can be restricted, the formation position of the scribe line is stabilized, and the scribe line can be formed at a desired position. .

In addition, since the scoring wheel 140 is a consumable item, it is necessary to perform regular replacement. In the present embodiment, since the attachment and detachment of the holder unit 130 can be easily performed, the replacement of the scribe wheel 140 constituting the holder unit 130 can be quickly performed by replacing the holder unit 130 itself.

Further, although the holder 160 is formed using the holder base material 161 made of a magnetic metal, the holder base material 161 which is the same as the holder base material of the first embodiment may be used. In the same manner, the lower portion of the holder base material 161 in which the holding portions 162a and 162b are located is formed by the non-magnetic SUS 303, and the holder base material 161 is formed of a magnetic metal. The upper part.

[Embodiment 3]

Next, the holder unit 230 of another embodiment will be described using a drawing. Fig. 6(A) is a side view of the holder unit 230, and Fig. 6(B) is a cross-sectional view taken along line VIB-VIB of Fig. 6(A).

The holder unit 230 is a scribing wheel 240, a pin 250, and a holder 260. In addition, the scribing wheel 240 and the pin shaft 250 have substantially the same configuration as the scribing wheel 40 of the first embodiment and the pin shaft 50, and detailed description thereof will be omitted.

The holder 260 is composed of a holder base material 261 which is an angular member formed of, for example, SUS303 which is not magnetic.

In the holder base material 261, a pair of holding portions 262a and 262b and a holding groove 263 between the holding portions 262a and 262b are formed.

Further, in the holding portions 262a and 262b, the cylindrical bodies 264a and 264b are fixed to the coaxial position by welding. Further, at the center of the cylindrical bodies 264a, 264b, pin holes 265a, 265b through which the pin shaft 250 is inserted are formed at the coaxial position. Therefore, the opposing surface of the cylindrical body 264a opposed to the circular plate side surface 242 of the scoring wheel 240 becomes the holding wall 266a, and the opposing surface of the cylindrical body 264b opposed to the circular plate side surface 242 becomes the holding wall 266b.

Further, in the holding portion 262a, a housing portion 267 which is recessed in a circular shape from the right side surface side of the holder base material 261 is formed. A magnet 275 is housed in the housing portion 267. Further, the accommodating portion 267 is a fan-shaped accommodating portion unlike the circular accommodating portion 57 of the first embodiment. Further, as shown in FIG. 6(A), the accommodating portion 267 is formed to cover a region where the disc side surface 242 overlaps the holding portion 262a.

Further, in the holder base material 261, a mounting hole 268 is formed in the upper portion, and the holder 260 is passed through the mounting hole 268, and is attached to the scribing device (not shown). Further, on the side surface of the holder base material 261, a bolt attachment hole 269 penetrating the holder base material 261 and two screw holes 270a and 270b located on both sides of the bolt attachment hole 269 are formed.

Further, the holder 260 is provided with a fixing bolt attached to the bolt attachment hole 269 and a stopper on the side opposite to the side surface shown in Fig. 6(A), and the pin hole 265b is closed by the stopper.

Further, the holder 260 is provided with a fixing bolt (not shown) attached to the two screw holes 270a and 270b, and a stopper (not shown), and the stopper occluding the housing portion 267.

The holder 260 is used, and the pin 250 is inserted into the through holes of the scribing wheel 240, and the pin 250 is inserted into the pin holes 265a and 265b of the holding portions 262a and 262b to form the holder unit 230.

Further, the holder unit 230 houses the magnet 275 in a fan-shaped housing portion 267 centered on the pin hole. The magnet 275 has a shape substantially the same as that of the accommodating portion 267 and is fan-shaped. The magnet 275 is used to attract the scoring wheel 240 of the ferromagnetic body. Then, the scribing wheel 240 is attracted to the holding portion 262a side by the magnet 275, and the disc side surface 242 is brought into contact with the holding wall 266a.

Therefore, as in the first embodiment, the clearance between the disc side surface 242 of the scribing wheel 240 and the retaining wall 266a becomes zero, and the movement of the scribing wheel 240 along the pin 250 is restricted when the scribing line is formed. Therefore, by using the holder unit 230, the formation position of the score line can be stabilized, and the score line can be formed at a desired position.

Further, the accommodating portion 267 formed in the holding portion 262a is formed not only at a position overlapping the pin hole 265a formed in the holding portion 262a, but also formed to cover the disk side of the scribing wheel 240. The area where the surface 242 overlaps the holding portion 262a. That is, the magnet 275 is housed at a position where the disc side surface 242 overlaps the holding portion 262a. Therefore, the magnet 275 accommodated in the accommodating portion 267 can uniformly attract the entire region where the disc side surface 242 overlaps the holding portion 262a, and can make the scribing wheel 240 stand upright more surely. Therefore, in the holder unit 230 of the present embodiment, since the scribing wheel 240 is more erect, it is possible to form a scribing line in which fission (skew) is less likely to occur.

Further, in the above embodiment, the number of magnets accommodated in the accommodating portion is only one, but the holder unit may be configured to include a plurality of magnets. In the case of such a configuration, it is preferable that a plurality of magnets are disposed so as to uniformly attract the side faces of the circular plate so that the scoring wheels are not attracted obliquely. Further, a through hole may be formed in the magnet to insert the pin. In this case, it is preferable that the magnet is fixed in the accommodating portion by an adhesive or the like so as not to move in the accommodating portion.

30‧‧‧Holding unit

40‧‧‧scribed wheel

41‧‧‧through holes

42‧‧‧round side of the disc

43‧‧‧ Blade

50‧‧‧ pin

51‧‧‧ pointed head

60‧‧‧Holding

61‧‧‧Holding substrate

62a‧‧‧ Keeping Department

65a, 65b‧‧ pin holes

67‧‧‧ Housing Department

68‧‧‧Installation holes

69‧‧‧Bolt mounting holes

70a, 70b‧‧‧ screw holes

75‧‧‧ magnet

Claims (8)

A holder having a pair of holding portions and pin holes that are coaxially formed and respectively formed in the holding portions for passing through a through hole of the scribing wheel and inserted into the pin hole of the pin hole The scribe wheel is rotatably held between the holding portions, and the accommodating portion for accommodating the magnet that attracts the scribe wheel in the direction of the pin is formed in the holding portion while holding the scribe wheel One party. The holder of claim 1, wherein the receiving portion is formed at a position overlapping the pin hole. A holder unit comprising: a scoring wheel of a ferromagnetic body, a pin penetrating through the through hole of the scoring wheel, and a holder having a pair of holding portions of the scoring wheel and being coaxial A pin hole formed in the holding portion and inserted into the pin shaft, wherein one of the holding portions accommodates a magnet that attracts the scribing wheel in a direction of the pin. The holder unit of claim 3, wherein the magnet is housed at a position overlapping the pin. The holder unit of claim 3, wherein the magnet is housed at a position where a side surface of the scoring wheel overlaps the holding portion. A holder unit according to any one of claims 3 to 5, wherein the pin is shorter on the side of the magnet. A scoring device characterized by having the maintenance of claim 1 or 2 With. A scoring apparatus characterized by comprising the holder unit of any one of claims 3 to 6.