JP2007126322A - Rotary cutter head, scribing device equipped with the same, scribing method using the same and brittle material component formed by the method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary cutter head capable of scribing glass having a curved shape. <P>SOLUTION: The rotary cutter head is composed of an arm 40 and a cutter chip 49-arranged chip holder 46 and a rotation control means is fixed to the lower part of a scribing head 32 so that the rotation of the arm can be controlled. At least one chip holder 46 is fixed to the arm 40 and arranged in the position offset from the central axis Q of the scribing head 32 by using a positioning-variable means so that the chip holder 46 is rotated around the central axis Q of the scribing head 32 by rotating the arm. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cutter head of a scribing device for scribing a brittle material such as glass, and in particular, a rotary cutter head, a scribing device provided with the same, a scribing method using the rotary cutter head, and a scribing method thereof It relates to a brittle material part formed by the above.

  Liquid crystal display devices are now used in various devices such as personal computers, fax machines, telephones and other information equipment, copiers and other office equipment, microwave ovens, refrigerators, washing machines and other household appliances, watches, and various processing machinery. Widely used. Glass is used as one of the main components of the liquid crystal display device, and the glass is cut into a required size using a scribe device.

  In general, the scribing method of the scribing device is that the cutter head provided with the cutter tip is attached to the scribing device, and the cutter head is moved on the glass surface in the horizontal axis (X axis) direction and the vertical axis (Y axis) direction. And scribing the glass with a cutter tip. Then, the glass is broken after scribing to produce a rectangular glass.

  It is very difficult to form a curved scribe line by combining the movement in the horizontal axis direction and the movement in the vertical axis direction with such a scribing device, and it is necessary to produce glass with a shape such as a circle or an ellipse. It took time, and the shape and the cut surface became very rough, and a smooth curve and a smooth cut surface could not be obtained.

  Then, the technique disclosed by patent document 1 shown below can be seen as one of the techniques of obtaining the glass which forms curved shape, such as circular and an ellipse.

JP-A-8-40739

  FIG. 14 is a perspective view of the glass cutting device shown in Patent Document 1. As shown in FIG. 14, this glass cutting device is roughly composed of a template 2 and a cutter head 10. The mold plate 2 has a structure in which a mold plate main body 4 and a pair (two sets on the left and right in the figure) of a suction cup 5, a suction cup base 6, a screw, a cam lever 7, and the like are assembled. The cutter head 10 has a structure in which a cutter blade 12, a cutter body 11, a bearing 18, a connecting bar 13, a guide bar 14, a grip 15 and the like are assembled.

  The template body 4 has an oval shape, and a groove 4a having the same oval shape is provided on the upper surface side. And the guide rod 14 which attached the bearing (not shown) runs in the groove | channel 4a.

  The glass is cut as follows. The template 2 is applied to the glass G through a pair of suction cups 5 and the cam lever 7 is raised to suck the suction cup 5 to the glass G. Next, when the grip 15 of the cutter head 10 is gripped and the cutter head 10 is moved in the direction of the arrow, the bearing 18 of the cutter head 10 rotates along the outer wall of the template body 4 and abuts against the glass G accordingly. The cutter blade 12 rotates to scribe the glass G, and a scribe line S is formed. The scribe line S is formed in an oval shape similar to the oval shape of the groove 4 a of the template body 4. After that, when the glass G is pressed and the mold plate 2 and the cutter head are lifted with the suction cup 5 adsorbed to the glass G, the oval glass G is cut at the scribe line S and adsorbed to the suction cup 5. Lifted in condition. Then, when the cam lever 7 is tilted, the oval glass G is separated from the suction cup, and an oval glass is obtained.

  The glass cutting device disclosed in Patent Document 1 employs a scribing method in which scribing is performed following the shape of the groove 4 a of the template 2. Accordingly, various shapes of glass can be manufactured by changing the shape of the groove 4a of the template 2. For example, a circular shape, a substantially rectangular shape with four corners R, an elliptical shape, an irregular shape having an irregular curve, and the like.

  However, in this method, the template 2 or the template body 4 of the template 2 must be prepared every time the glass shape changes. Further, the cutter head 10 or the connecting bar 13 of the cutter head 10 and the bearing 18 must be prepared each time the size of the same shape changes. For this reason, since many template 2 and the cutter head 10 must be prepared according to the shape and magnitude | size of glass, an installation cost also becomes high. In addition, the management cost for managing those facilities also increases.

  Moreover, this crow cutting device takes a manual cutting method. The mass productivity is low and the manufacturing cost is high.

  Further, since it is manual, the glass pressing force at the cutter blade is not constant, and the pressing force varies. This means that the scribe depth to the glass is not constant, and the scribe depth varies greatly. And when glass is cut | disconnected, a glass cut surface will become rough, chipping etc. will also generate | occur | produce by the case, and there exists a danger of causing the quality deterioration of glass.

  The present invention has been made in view of the above problems, and provides a scribing method, a scribing device, and the like that can form a curved glass in a short time and can obtain a smooth outer curve and a smooth cut surface. The purpose is to find out.

  As a means for solving the above problems, a rotary cutter head is used in the present invention. A feature of the rotary cutter head in the present invention is a cutter head attached to a lower portion of the scribe head, and the cutter head includes an arm and a tip holder provided with a cutter tip, and the arm is the scribe head. At least one tip holder is attached to the arm and provided at a position offset from the central axis of the scribe head, and rotates around the central axis of the scribe head by the rotation of the arm. It is characterized by doing.

  The rotary cutter head according to the present invention is characterized in that the arm rotates in a controllable manner with the central axis of the scribe head as a rotation central axis via a rotation control means.

  The rotary cutter head according to the present invention is characterized in that the rotation control means includes at least a motor and a transmission member that transmits the rotation of the motor to the arm.

  The rotary cutter head according to the present invention is characterized in that the arm has a position changing means for changing the offset amount of the chip holder by a predetermined amount.

  In addition, the rotary cutter head according to the present invention is characterized in that the position changing means comprises a plurality of chip holder mounting holes provided at a predetermined interval.

  In addition, the rotary cutter head according to the present invention is characterized in that the position varying means comprises a long window hole.

  Further, the rotary cutter head according to the present invention is characterized in that the position variable means comprises a motor and a slide mechanism member that slides the chip holder, and the position variable of the chip holder can be automatically controlled. It is characterized by.

  The rotary cutter head according to the present invention is characterized in that the scribe head is provided with a pressing force control means capable of controlling the pressing force of the cutter chip in accordance with the thickness of the brittle material.

  In addition, the scribing device of the present invention is characterized by including a scribing head that controllably moves on the surface of a work made of a brittle material fixed to a work table in a vertical axis, a horizontal axis, and a vertical axis. In the scribing apparatus for scribing the workpiece with the cutter tip of the cutter head, the cutter head is a rotary cutter head having the above-described characteristics.

  In addition, the scribing method of the present invention is characterized by rotating a cutter head attached to the lower part of a scribe head that is controllably moved on the surface of a work made of a brittle material fixed to a work table in a vertical axis, a horizontal axis, and a vertical axis. It is composed of a controllable arm and a tip holder provided with a cutter tip so that the arm can be attached to the scribe head and can be controlled to rotate with the center axis of the scribe head as a rotation center axis via a rotation control means. And mounting the chip holder at one or two positions offset from the central axis of the scribe head of the arm, rotating the arm to rotate the chip holder around the central axis of the scribe head, Scribing the workpiece with a cutter tip provided in the tip holder And it is characterized in and.

  In addition, the scribing method of the present invention is characterized by rotating a cutter head attached to the lower part of a scribe head that is controllably moved on the surface of a work made of a brittle material fixed to a work table in a vertical axis, a horizontal axis, and a vertical axis. It is composed of a controllable arm and a tip holder provided with a cutter tip so that the arm can be attached to the scribe head and can be controlled to rotate with the center axis of the scribe head as a rotation center axis via a rotation control means. One or two tip holders are mounted at positions offset from the central axis of the scribe head of the arm, and the tip holder is rotated by the rotational drive of the arm, so that the horizontal axis or vertical axis of the scribe head is The tip holder is linearly moved by driving the shaft, and the tip holder In the work of rolling movement and linear movement in the cutter tip provided on the tip holder performed mutually is characterized in performing the scribing.

  In addition, the scribing method of the present invention is characterized by rotating a cutter head attached to the lower part of a scribe head that is controllably moved on the surface of a work made of a brittle material fixed to a work table in a vertical axis, a horizontal axis, and a vertical axis. It is composed of a controllable arm and a tip holder provided with a cutter tip so that the arm can be attached to the scribe head and can be controlled to rotate with the center axis of the scribe head as a rotation center axis via a rotation control means. One or two chip holders are attached to a position offset from the center axis of the scribe head of the arm via a position variable means that can be automatically controlled, and the chip holder is rotated by rotating the arm. The chip holder is moved by moving the horizontal axis or the vertical axis of the scribe head. The chip holder is moved in a straight line, the tip holder is rotated by the controllable position changing means and offset movement other than the linear movement is performed, and the rotational movement, linear movement and offset movement of the chip holder are combined with each other. The workpiece is scribed with a cutter tip provided on the surface.

  The scribing method of the present invention is characterized in that the rotation control means comprises at least a motor and a transmission member that transmits the rotation of the motor to the arm.

  Further, the scribing method of the present invention is characterized in that the position varying means comprises a motor and a slide mechanism member that slides the chip holder.

  Moreover, the characteristic of the brittle material part formed by the scribing method of the present invention is a circular part or a circular ring-shaped part.

  Further, the brittle material part formed by the scribing method of the present invention is characterized by an oval part, an oval ring-shaped part, a substantially rectangular part with four rounded corners, or a substantially rectangular ring with four rounded corners. It is characterized by being a part.

  Further, the characteristic of the brittle material part formed by the scribing method of the present invention is that the outer shape is an irregularly shaped part in which a curved line and a straight line are mixed, the part whose outer shape is an irregularly shaped curve, or the outer shape. It is a ring-shaped part.

  The rotary cutter head of the present invention comprises an arm and a chip holder. The arm is attached to the scribe head so that the rotation can be controlled, and at least one tip holder is attached to the arm and provided at a position offset from the center axis of the scribe head. Accordingly, the tip holder rotates around the central axis of the scribe head by the rotation of the arm. When the tip holder rotates around the center axis of the scribe head and moves in an arc, the cutter tip provided on the tip holder makes contact with the glass, which is a brittle material, and moves in an arc, resulting in an arc-curved scribe line. It is done. If one chip holder is attached to the arm, one arc-curved scribe line is obtained, and if two chip holders are attached, two parallel arc-curved scribe lines are obtained.

  Also, the rotation angle of the tip holder attached to the arm can be arbitrarily set by the arm whose rotation can be controlled by rotating the arm about the center axis of the scribe head via the rotation control means. . When the tip holder is rotated 360 °, a circular scribe line, when rotated 180 °, a 1/2 circular scribe line, when rotated 90 °, a 1/4 circular scribe line, and the like are obtained.

  The arm rotation control means is constituted by a motor and a transmission member that transmits the rotation of the motor to the arm. When a motor is used, the control mechanism and the transmission mechanism can be made simple, so that the cost can be reduced. Moreover, since it can be put together by a small structure, it is provided also in a narrow space. A servo motor or a stepping motor can be used as the motor.

  Further, by providing the position variable means so that the offset amount of the chip holder can be varied by a predetermined amount, the offset amount can be set to a desired value. This can change the radius of rotation of the tip holder and change the arc radius of the scribe line. A small arc radius, a large arc radius and a desired arc shape are obtained.

  Further, the position varying means is constituted by a plurality of chip holder mounting holes provided at a required interval. The amount of offset is determined by the mounting hole at which position. For example, if the tip holder is attached to the attachment hole on the most distal end side of the arm, the offset amount becomes the largest and the largest arc radius can be obtained. Conversely, if the tip holder is mounted in the innermost mounting hole of the arm, the offset amount becomes the smallest and the smallest arc radius is obtained.

  Further, the position variable means can be configured with a long window hole. If it is a long window hole, the chip holder can be fixed at a desired position within the range of the length of the long window hole. It is very convenient because the position can be set freely with one slot. In addition, the production cost of the arm can be reduced.

  Further, the position varying means can be constituted by a motor and a slide mechanism member that slides the chip holder. When configured with a motor and a slide mechanism member, the position change of the chip holder can be automatically controlled. Also, the offset amount can be set arbitrarily. This makes it possible to automatically set the offset amount of the chip holder, and the offset amount can be set to an arbitrary value without removing the chip holder from the arm. In addition, if the offset amount movement by the position converting means comprising the motor and the slide mechanism member is referred to as offset movement, a combination of the offset movement, the rotational movement of the chip holder, and the linear movement of the scribe head can be used to combine the offset movement. A scribe line having a curved line can be formed.

  In addition, by providing a pressing force control means that can control the pressing force of the cutter tip according to the thickness of the brittle material on the scribe head, a constant pressing force can be constantly obtained even if the thickness changes, so that the scribe depth As a result, the cutting surface when the brittle material is cut is smooth and clean.

  By providing the scribing device with the rotary cutter head that performs such an action, the brittle material can be scribed in a circular shape or an oval shape and then cut. Alternatively, it can be scribed and cut into a circular ring or an oval ring. Further, since one scribe device and one cutter head can automatically cope with this, the manufacturing cost can be reduced. Moreover, since the cut outer shape is finished in a smooth shape and the cut surface is finished in a smooth surface, a good quality can be obtained.

  Next, the scribing method of the present invention controls the rotation of the cutter head attached to the lower part of the scribe head that moves controllably on the vertical axis, the horizontal axis, and the vertical axis on the surface of the work made of a brittle material fixed to the work table. The tip holder is composed of a possible arm and a tip holder provided with a cutter tip, and the arm is attached to the scribe head, and the center axis of the scribe head can be controlled and rotated through the rotation control means with the center axis of rotation as a control center. Attach one or two to the position offset from the center axis of the scribe head of the arm, rotate the arm to rotate the tip holder around the center axis of the scribe head, and apply the cutter tip provided on the tip holder to the workpiece Take the way to scribe. Thereby, a circular component or a circular ring-shaped component can be formed. In addition, the chip holder is rotated and moved by rotating the arm, and the chip holder is linearly moved by moving the horizontal axis or the vertical axis of the scribe head, and the chip holder is rotated and linearly moved to each other. By taking a method of scribing the workpiece with the provided cutter tip, an oval part or an oval ring-shaped part can be formed.

  In addition, the scribing method of the present invention can control the rotation of the cutter head attached to the lower part of the scribing head that moves controllably on the vertical axis, horizontal axis, and vertical axis on the surface of the work made of a brittle material fixed to the work table. And a tip holder provided with a cutter tip, the arm is attached to the scribe head and the center axis of the scribe head can be controlled and rotated via the rotation control means so that the tip holder can be controlled. Attach one or two via position variable means that can be automatically controlled to the position offset from the central axis of the scribe head of the arm, rotate the chip holder by rotating the arm, and move the horizontal or vertical axis of the scribe head. The tip holder is linearly moved by moving the shaft, and is controlled by a controllable position variable means. By taking a method of scribing a workpiece with a cutter tip provided in the chip holder by combining the rotary movement, linear movement, and offset movement of the chip holder with each other by offset movement other than rotational movement and linear movement. It is possible to form a deformed part whose outer shape is a curve and a straight line, a part whose outer shape is a deformed curve, or a ring-shaped part having these outer shapes.

  Here, the effect by configuring the rotation control means with the motor and the transmission member that transmits the rotation of the motor to the arm, and the effect by configuring the position variable means with the slide mechanism member that slides the motor and the chip holder. Is as described above.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to FIGS. Here, FIG. 1 shows a perspective view of essential parts of the scribing apparatus according to the embodiment of the present invention. FIG. 2 is a side view of the scribe head housing portion and the rotary cutter head in FIG. 1, and the scribe head and the rotary cutter head are partially shown in a half-sectional view. 3 is a perspective view of the arm shown in FIG. 2, and FIG. 4 is an explanatory diagram showing a scribe state of the cutter tip by the rotational drive of the arm in FIG. 5 is a plan view showing a scribe shape scribed by the scribing apparatus according to the present embodiment. FIG. 5A is a circular shape, FIG. 5B is an oval shape, and FIG. ) Indicates a substantially rectangular shape with four corners having R (arc).

  First, in FIG. 1, a scribing apparatus 20 according to an embodiment of the present invention is provided with a table 22 at the top of the apparatus main body 21 and an operation panel 23 at the front. This table 22 is provided for placing the workpiece W to be scribed. Then, the work W is fixed on the table 22 by a method such as vacuum suction. Further, the table 22 is slightly rotated so that the workpiece W can be arranged at a specified position, and the alignment of the workpiece W can be adjusted. In the present embodiment, the work W uses a brittle material made of glass. The operation panel 23 has a vertical axis (referred to as the Y axis in FIG. 1 and hereinafter referred to as the Y axis) and a horizontal axis (referred to as the X axis in FIG. 1). It is provided to input various instruction information such as the amount of movement in the direction. In the present embodiment, the operation panel 23 is provided integrally with the apparatus main body 21. However, the operation panel 23 is provided with an operation box separately from the apparatus main body 21, and an instruction information input operation is performed using the operation box. It is also possible to perform.

  In addition, a drive device serving as a bridge 24 is provided on the operation main body 21 in order to move a scribe head described later in the Y-axis direction and the X-axis direction. The bridge 24 has a U-shaped bridge formed by attaching guide bars 26 to two right and left support columns 25 standing from the inside of the apparatus main body 21. The bridge 24 is configured to be controllable in the Y-axis direction by a driving member (not shown) such as a motor or a ball screw provided in the apparatus main body 21. In addition, a ball screw (not shown) is disposed in the hollow interior of the guide bar 26 forming the bridge 24, and this ball screw is connected to a motor 29 attached to one of the columns 25 to be connected to the motor 29. Rotation is driven according to the rotation of the motor. Further, a head moving plate 28 is provided to be engaged with the ball screw, and the head moving plate 28 moves controllably in the X-axis direction along the guide 27 provided on the guide bar 26 by the rotational drive of the ball screw. It is like that. Further, the head moving plate 28 is provided with a scribe head storage portion 30, and the rotary cutter head 50 protrudes from the scribe head storage portion 30. The rotary cutter head 50 includes an arm 40 and a chip holder 46 provided on the arm 40.

  Next, the scribe head storage unit 30 is covered with a box in order to avoid dust, dust, and the like. As shown in FIG. 31 is provided. The head lift plate 31 is moved up and down by an air cylinder (not shown). A scribe head 32 and a motor 33 are fixed to the head lifting plate 31, and a rotary cutter head 50 is attached to the scribe head 32. The scribe head 32 is composed of a head body 32 a and a bearing 32 b, and the rotary cutter head 50 is composed of an arm 40 and a chip holder 46 provided at the tip of the arm 40. The arm 40 includes an arm shaft 41 and an arm plate 42. The arm shaft 41 engages with a bearing 32b portion of the scribe head 32, and the rotary cutter head 50 is attached to the scribe head 32. It is like that. A pulley 45 is fixed to the arm shaft 41 of the arm 40. The pulley 45 is connected to the motor 33 via the belt 34, and the pulley 45 rotates in accordance with the rotation of the motor 33. 40 rotates. The motor 33, the belt 34, and the pulley 45 are used as means for controlling the rotation of the arm 40. Since the servo motor is used for the motor 33, the rotation direction and the rotation angle of the arm 40 can be controlled. Further, since the scribing head 32 and the motor 33 are fixed to the head lifting plate 31 that can be lifted and lowered, the cutter head 50 also moves up and down as the head lifting plate 31 moves up and down.

  Here, the arm 40 in this embodiment is comprised from the arm axis | shaft 41 and the arm board 42, as shown in FIG. The arm plate 42 has holes 42a and 42b at both ends, and an arm shaft 41 is fixed to the hole 42a by a method such as press fitting. The chip holder 46 is fixed to the hole 42b by a method such as screwing. As shown in FIG. 2, the arm 40 rotates around the central axis Q of the scribe head 32. The central axis Q of the scribe head 32 is also the central axis of the arm shaft 41. Accordingly, the arm 40 rotates about the central axis Q of the scribe head 32, and the chip holder 46 attached to the arm 40 also rotates about the central axis Q of the scribe head 32. That is, the rotary cutter head 50 including the arm 40 and the chip holder 46 is a rotary cutter head that rotates about the central axis Q of the scribe head 32.

  A tip holder 46 is fixedly provided in the hole 42b at the tip of the arm 40 as shown in FIG. The tip holder 46 is configured such that a cutter tip 49 is rotatably attached to a holder 47 via a pin 48. Then, the cutting edge of the cutter tip 49 can be scribed in contact with the glass surface of the brittle member.

  Therefore, the chip holder 46 is provided at a position offset from the central axis Q of the scribe head 32 (this central axis is also the central axis of the arm shaft 41). When the offset amount is P, the chip holder 46 is rotationally moved around the central axis Q of the scribe head 32 in a controllable manner with the offset amount P by the rotational drive of the arm 40.

  FIG. 4 is an explanatory view showing a scribe state of the cutter tip 49 by the rotational drive of the arm 40. When the arm 40 is rotationally driven around the central axis Q of the scribe head 32 (this central axis is also the central axis of the arm shaft 41), the cutter tip of the tip holder 46 that contacts the surface of the glass G is used. Reference numeral 49 denotes a circular scribe line R having a radius of an offset amount P by rotating in the direction of the arrow while being scribed. When the arm 40 makes one rotation (360 ° rotation), a circular scribe line R is formed. When the arm 40 is cut by an appropriate cutting method in a later process, a circular glass having a radius P is completed. Further, when the arm 40 is rotated halfway (180 °), a scribe line R that is a semicircle (1/2 circle) can be formed, and when the arm 40 is rotated 1/4 (90 °), a scribe line R that is ¼ circle is formed. Can be formed.

  The rotary cutter head 50 capable of performing the arc-shaped scribing can be set at a desired position on the surface of the glass G. The bridge 24 where the scribe head 32 is provided is moved to a desired position by driving in the Y-axis direction, and the head moving plate 28 where the scribe head 32 is provided is moved to a desired position by driving in the X-axis direction. By doing so, the rotary cutter head 50 can be set at a desired position. This is performed in advance by position information input on the operation panel, and the rotation angle control of the rotary cutter head 50 is also performed in advance by position information input on the operation panel. The rotation control of the rotary cutter head 50, the Y-axis movement control of the scribe head, and the X-axis movement control are controlled by a separately provided drive circuit (not shown).

Next, the scribing apparatus 20 according to the present embodiment has a position adjusting mechanism for setting the work W initially placed on the table 22 to a specified position. This position adjustment is performed using two cameras and two monitor televisions. In FIG. 1, a mounting base 51 attached to the rear side of the apparatus main body 21 is provided in a bridge shape, a rail 52 is laid thereon, two pedestals 53 are provided on the left and right sides of the rail 52, and Two cameras 54 are attached to the pedestal 53. The camera 54 is moved up and down by the vertical movement mechanism of the pedestal 53.
In addition, two televisions 55 connected to the camera 54 via a cord are arranged, and an image captured by the camera 54 can be displayed on the television 55.

  Set to the normal position as follows. First, the cross alignment marks provided at the two left and right corners of the workpiece W are copied by the two left and right cameras 54, respectively, and the images are displayed on the two televisions 55, and the left and right alignment marks are displayed on the television. See how far the standard is off. Then, the table 22 is slightly rotated while watching the two television images on the left and right to match the alignment mark with the reference displayed on the television. As a result, the workpiece W is set at a specified position.

  The scribing device 20 of the present embodiment includes a rotary cutter head 50 that rotates and drives an arc. Then, the glass is scribed in an arc shape by the rotational drive of the rotary cutter head 50. FIG. 5 shows a scribe shape obtained by the scribe device of this embodiment.

  5A, the scribing head 32 is stopped, the rotary cutter head 50 is rotated once (360 ° rotation) T1, the tip holder 46 is moved once, and the circular scribe line R1 is formed by the cutter chip 49. Formed.

  FIG. 5B shows an oblong scribe line R2. First, the scribe head 32 is driven in the Y-axis direction to rotate the cutter head in the Y1 direction (Y-axis forward direction). The chip holder 46 is moved linearly while moving 50, and the cutter chip 49 performs linear scribing. Next, the chip holder 46 is moved by half rotation while the rotary cutter head 50 is rotated 1/2 (180 ° rotation) T2, and a semicircle is scribed. Next, with the rotary cutter head 50 rotated 1/2, the rotary cutter head 50 is moved in the Y2 direction (a direction opposite to the Y1 direction, multiple directions) to move the tip holder 46 linearly. Do a scribe. The amount of movement in the Y1 direction and the Y2 direction is the same. Finally, the rotary cutter head 50 is rotated 1/2 turn T3 to move the tip holder 46 by half a turn, and a semicircle is scribed. As a result, an elliptical scribe line R2 is formed. Thus, the elliptical scribe line R2 moves the tip holder 46 of the rotary cutter head 50 linearly in the Y1 direction (forward direction of the Y axis) -1/2 rotation T2 movement-Y2 direction (multiple of the Y axis). Direction) and 1/2 turn T3 movement are sequentially combined.

  FIG. 5C shows a substantially rectangular scribe line R3 with four corners R (arc). This is performed by using both the drive in the Y-axis direction and the drive in the X-axis direction for the scribe head 32. This scribe line R3 is a linear movement of the tip holder 46 of the rotary cutter head 50 in the Y3 direction (Y-axis forward direction) -1/4 rotation T4 (90 ° rotation) -X1 direction (X-axis forward direction) ) Linear movement -1/4 rotation T5 (90 ° rotation) movement-linear movement in Y4 direction (Y-axis double direction)-1/4 rotation T6 (90 ° rotation) movement-X2 direction (X axis It can be formed by scribing with a cutter tip while performing linear movement-1 / 4 rotation T7 (90 ° rotation) movement in multiple directions.

  After scribing in this way, circular glass, oval glass, or rounded corners are rounded by cutting a portion of the scribe line with a cutting device connected to the scribing device 20 or separately provided. A substantially rectangular glass is obtained.

  Note that the rotary cutter head 50 in this embodiment is formed by providing one tip holder 46 on the arm 40, but a plurality of two, three, and four can be provided. For example, when two chip holders 46 are provided and rotated 360 °, a circular ring-shaped glass can be manufactured. In order to provide a plurality of chip holders 46, a plurality of holes may be formed side by side in the arm 40, and the chip holder 46- may be attached to the holes.

  Further, in the present embodiment, one hole is provided at the tip of the arm 40 and the chip holder 46 is provided in the hole. However, a plurality of holes may be provided at required intervals as required. If the chip holder 46 is provided in the desired hole, the desired offset amount can be obtained. It is preferable that a hole is appropriately selected according to the size of the shape, and a chip holder 46 is provided in the selected hole.

  As described above, by using the rotary cutter head 50 in the scribing device 20, glass having a circular shape, an oval shape, or a substantially rectangular shape can be manufactured with one cutter head 50. Moreover, the size can also be set freely. Moreover, since it can be manufactured automatically, it can be mass-produced and the manufacturing cost can be very low. Further, a smooth curve can be obtained for the cut shape of the glass, and a smooth cut surface can be obtained, so that a beautiful cut surface can be obtained.

  In the present embodiment, the rotation control means for rotational drive of the rotary cutter head 50 is constituted by the motor 33, the pulley 45, the belt 34, etc., but the rotation control means is not limited to this configuration, and the motor, gear The rotation control may be performed with a configuration such as that described above, and other configurations may be used as long as they serve the purpose.

  The scribe head 32 is driven in the X-axis direction by driving the head moving plate 28 in the X-axis direction via a motor 29 and a ball screw. The scribe head 32 is driven in this configuration in the X-axis direction. The structure is not limited, and a structure in which a belt is used instead of a ball screw to drive the scribe head 32 in the X-axis direction may be used.

  Hereinafter, the present invention will be described in more detail with reference to examples. First, Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 6 is a perspective view of the rotary cutter head according to the first embodiment of the present invention. FIG. 7 shows a plan view of the glass obtained by the scribing method with the rotary cutter head in FIG.

  As shown in FIG. 6, the rotary cutter head 70 according to the first embodiment includes an arm 60 provided with two chip holders 66. The arm 60 has a structure in which an arm shaft 61 is fixed to one end side of the arm plate 62 by a method such as press fitting, and the arm shaft 61 is a scribe head (having the same specifications as the scribe head described in the above embodiment). Mounted on. The arm plate 62 is formed by sequentially forming a plurality of holes 62b1, 62b2, 62b3, 62b4 with a predetermined interval on the other end side. The plurality of holes 62b1, 62b2, 62b3, 62b4 are holes to which the chip holder 66 is attached, and the chip holder from the central axis Q of the scribe head (the central axis Q is also the central axis of the arm shaft 61). It is used as a position variable means for the offset amount at position 66. In the first embodiment, four holes 62b1, 62b2, 62b3, and 62b4 are provided. However, the number of holes is not limited to four, and a necessary number of holes is preferably provided.

  In the first embodiment, the chip holder 66 is fixed in parallel to the holes 62b1 and 62b3 using a set screw or the like. Therefore, the chip holder 66 attached to the hole 62b3 has an offset amount P1, and the chip holder 66 attached to the hole 62b1 has an offset amount P2. The two chip holders 66 each have a cutter chip 69 at the tip thereof, and the two cutter chips 69 perform glass scribing.

  The rotary cutter head 70 to which the two chip holders 66 are attached rotates in a controllable manner by a rotation control means having a configuration such as a motor and a belt as in the above-described embodiment. FIG. 7 is formed by scribing and cutting glass with each cutter tip 69 of the two tip holders 66 while rotating the rotary cutter head 70 to which the two tip holders 66 are attached once (360 °). A circular ring-shaped glass is shown.

  The inner diameter portion of the ring is scribed by the cutter tip 69 of the tip holder 66 provided at the offset amount P1, and the outer shape portion of the ring is scribed by the cutter tip 69 of the tip holder 66 provided at the offset amount P2. When the scribe line of the inner diameter portion and the scribe line of the outer shape portion are cut, a ring-shaped glass G1 having an inner diameter P1 and an outer shape P2 is obtained. Since the width of the ring is determined by the difference between the offset amounts of the two chip holders, the width of the ring can be freely changed by changing the position of the hole for attaching the chip holder 66.

  The ring-shaped glass G1 shown in FIG. 7 is obtained by rotating the rotary cutter head 70 once (360 ° rotation). As described in the previous embodiment, the rotary cutter head 70 chip holder 66 is linearly moved in the forward direction of the Y axis -1/2 rotation (180 ° rotation) -linear movement in the double direction of the Y axis- An oval ring-shaped glass can be obtained by repeating the ½ rotation (180 ° rotation) movement.

  Further, the tip holder 66 of the rotary cutter head 70 moves linearly in the forward direction of the Y axis—1 / 4 rotation (90 ° rotation) —linear movement in the forward direction of the X axis—1 / 4 rotation (90 °) Rotation) Movement-Linear movement of Y axis in two directions-1/4 rotation (90 ° rotation) movement-Linear movement of X axis in two directions-1/4 rotation (90 ° rotation) A ring-shaped glass having a substantially rectangular shape with R attached thereto can be obtained.

  Further, the number of chip holders 66 attached to the arm 60 is not limited to two, but can be increased to three or four. By increasing the number of chip holders 66, a plurality of ring-shaped glasses having different sizes can be formed at a time.

  In the first embodiment, the ring-shaped glass is mainly described. However, it is needless to say that a circular glass, an oval glass, and a substantially rectangular glass are formed simultaneously with the ring-shaped glass.

  Next, a rotary cutter head according to a second embodiment of the present invention will be described with reference to FIGS. Here, FIG. 8 shows a side view of the scribing head storage portion and the rotary cutter head attached to the scribing apparatus according to the second embodiment of the present invention, and the scribing head and the rotary cutter head are partially cut-away sectional views. It shows. FIG. 9 is a perspective view of the rotary cutter head shown in FIG.

  The feature of the rotary cutter head of Example 2 is that it has a structure provided with pressing force control means that can control the pressing force of the cutter tip according to the change in the thickness of the brittle material made of glass, and the offset amount of the tip holder The position variable means is structured to be adjusted by a long window hole provided in the arm.

  First, the structure of the pressing force control means for the cutter tip will be described with reference to FIG. In FIG. 8, reference numeral 80 denotes a scribe head storage portion, which is on the head moving plate 28. The head moving plate 28 is a component having the same specifications as the head moving plate of the scribing apparatus described with reference to FIG. 1 in the above embodiment. The head moving plate 28 is driven to be controllable in the X-axis direction by the motor 29 shown in FIG. 1 and a ball screw (not shown). (See Figure 1)

  Returning again to FIG. 8, in the inside of the scribe head housing portion 80, a head elevating plate 81 is engaged with the head moving plate 28. The head lift plate 81 is moved up and down by an air cylinder (not shown). A scribing head 82 and a motor 83 are fixed to the head lifting plate 81, and a rotary cutter head 100 is attached to the scribing head 82. The scribe head 82 is composed of a head main body 82a, a bearing 82b, and a stopper 82c, and has a hollow portion 82d formed by a medium hole inside. The plug 82c is a plug that closes the hollow portion 82d, and is firmly fixed to the head main body 82a by a method such as screwing or bonding. In addition, a hole is provided in the plug 82c, and a pipe 87 is firmly attached to the hole, so that compressed air 88 is sent from the outside to the hollow portion 82d through the pipe 87.

  The rotary cutter head 100 includes an arm 90 and a tip holder 96 screwed to the tip of the arm 90 via a nut 95. The chip holder 96 has a configuration in which a cutter chip 99 is provided via a pin 98 on a holder 97 having a screw portion. The arm 90 includes an arm shaft 91 and an arm plate 92, and the arm shaft 91 is engaged with and attached to a bearing 82b of the scribe head 82. Thereby, the rotary cutter head 100 is attached to the scribe head 82. Further, a screw hole 91a is provided at the tip of the arm shaft 91, and after being attached to the scribe head 82, a piston 93 is screwed and attached to the screw hole 91a. The hollow portion 82d of the scribe head 82, the piston 93, and the compressed air 88 function as a pressurizing cylinder and constitute a pressing force control means. When the compressed air 88 is fed into the hollow portion 82d through the pipe 87, the piston 93 is pushed down, and the rotary cutter head 100 connected to the piston 93 is pushed down at the same time. The pressing force increases.

  The pressing force control means of the cutter tip 99 has an air circuit (not shown) for supplying compressed air to the hollow portion 82d. In the configuration of the air circuit, the compressed air emitted from the compressed air source sequentially passes through a filter, a regulator, and a lubricator, and the pressure is adjusted by a pressure reducing valve. And it is supplied to the hollow part 82d through a solenoid valve type distributor. The electromagnetic valve type distributor is driven by a signal from the control unit, and can connect or shut off the air flow path to and from the hollow part 82d. In addition, a pressure switch for monitoring the pressure of the air supplied to the pressure reducing valve is provided, and when the air pressure becomes a predetermined pressure or less, or when the pressure becomes a predetermined pressure or more, the control unit An abnormal signal is output.

  An allowable range of the supply air pressure by the pressing force of the cutter tip 99 is set in advance, and the air pressure within the allowable range is adjusted with a pressure reducing valve. For example, when the thickness of the glass increases, the pressure applied by the cutter tip 99 that contacts the glass surface increases, and the supply air pressure also increases at the same time. When the air pressure exceeds the allowable range, the pressure reducing valve operates to lower the supply air pressure, and the adjustment to lower the pressing force of the cutter tip 99 is performed. When the thickness of the glass is reduced, an operation opposite to the above operation is performed to adjust the pressing force of the cutter tip 99 to be high.

  By providing such a pressing force control means, scribing can be performed under a constant pressing force even if the glass thickness changes, and a constant scribing depth can be obtained. And when a glass is cut | disconnected, a smooth and beautiful cut surface is obtained. Further, the wear of the cutter tip is reduced, and the number of times the cutter tip is polished can be reduced. In the third embodiment, the structure of the air cylinder is provided inside the scribe head 82. However, it is also possible to adopt a structure in which a ready pressure cylinder is attached to the scribe head 82.

  The rotary cutter head 100 is rotationally driven in a controllable manner by using the drive of the motor 83. That is, a pulley 85 is fixed to the arm shaft 91 of the arm 90, and this pulley 85 is connected to the motor 83 via the belt 84, and the pulley 85 rotates in accordance with the rotation of the motor 83, and at the same time the arm 90 is Rotation drive. The motor 83, the belt 84, and the pulley 85 are used as means for controlling the rotation of the arm 90. Since the servo motor is used for the motor 83, the rotation direction and the rotation angle of the arm 90 rotate in a controllable manner. The rotary cutter head 100 composed of the arm 90 and the cutter holder 96 also rotates in a controllable manner. Further, since the scribe head 82 and the motor 83 are fixed to the head lifting plate 81 that can be moved up and down, the rotary cutter head 100 moves in the vertical direction (Z-axis direction) as the head lifting plate 81 moves up and down.

  Next, the cutter head 100 has a configuration in which the tip holder 96 is screwed to the arm 90 via the nut 95 as described above. As shown in FIG. 9, the arm shaft 91 is firmly fixed to the arm plate 92 at one end of the arm plate 92 by a method such as press fitting. A long long window hole 92 c is provided on the other end side of the arm plate 92, and a chip holder 96 is fixed to the long window hole 92 c through a nut 95 with an offset amount P. The tip holder 96 consists of a holder 97 provided with a threaded portion with a cutter tip 99 provided at the tip of the holder 97 through a pin. The threaded portion of the holder 97 is inserted into the long window hole 92c, and the screw is screwed with a nut 95 from above. Is fixed to the arm plate 92 by tightening.

  By taking such a configuration, the offset amount P can be freely set to a desired value. In some cases, the chip holder 96 can be easily assembled with a desired offset amount by engraving a scale or the like indicating the offset amount along the long window hole 92c.

  It is also possible to attach two chip holders 96 to the long window hole 92c. If two are provided, a ring-shaped glass can be produced.

  FIG. 10 shows another structure in which a long window hole position varying means is provided on the arm. As shown in FIG. 10, the rotary cutter head 120 is composed of an arm 110 and a tip holder 116, and a long window hole 112 c of the arm 110 is provided on the attachment side of the arm shaft 111. That is, a long window hole 112c is provided on one end side of the arm plate 112, a screw 111b provided on the arm shaft 111 is inserted into the long window hole 112c, and the arm shaft 111 is tightened from the lower side with a nut 115 to The structure fixed to the board 112 is taken. A hole 112b is provided at the other end of the arm plate 112, and the chip holder 116 is fixed to the hole 112b by a method such as a set screw.

  The adjustment of the offset amount P is performed on the fixed side of the arm shaft 111 by shifting the position of the arm shaft 111 in the long window hole 112c. By adopting such a structure, the offset amount P can be freely set to a desired value.

  In addition, although the cutter head 120 shown in FIG. 10 has a configuration in which one chip holder 116 is provided, it is also possible to provide two. Add one hole and provide the chip holder 116 in the hole, or use the long window hole 112c to provide two chip holders 116 by providing the chip holder 116 in the long window hole 112c Can be configured.

  Next, a rotary cutter head according to a third embodiment of the present invention will be described with reference to FIGS. Here, FIG. 11 shows a side view of the rotary cutter head according to the third embodiment of the present invention, and FIG. 12 shows a perspective view of the offset position control unit in FIG. 13 is a plan view showing the shape of a part of a scribe line scribed using the rotary cutter head in FIG. 11. FIG. 13 (a) is a scribe line formed by a straight line and a curve, FIG. (B) has shown the scribe line formed only with the curve.

  As shown in FIG. 11, the rotary cutter head 150 according to the third embodiment includes an arm 130 and an offset position control unit 140 attached to the arm 130. The rotary cutter head 150 is attached to the scribe head and rotates in a controllable manner. The feature of the rotary cutter head 150 here is that it has an offset position control unit 140 that can freely adjust and control the offset amount P. The offset position control unit 140 is provided on the arm plate 132 of the arm 130 constituted by the arm shaft 131 and the arm plate 132.

  The rotary cutter head 150 according to the third embodiment has an offset position control as a position variable means for the offset position of the cutter tip 149 that is offset from the center axis Q of the scribe head (which is also the center axis of the arm shaft 131). A unit 140 is used. The offset position control unit 140 includes a motor 145, a chip holder 146, an adjustment base 141, a ball screw 142, a guide bar 143, a spring 144, and the like. The adjustment base 141, the ball screw 142, the guide bar 143, and the spring 144 are included. Is a slide mechanism component for sliding the chip holder 146.

  As shown in FIG. 12, the adjustment base 141 has a U-shaped frame, and a ball screw 142 is provided at substantially the center thereof, and this ball screw 142 is rotatably held. In addition, two guide rods 143 are provided on the adjustment table 141 at portions that are in contact with both sides of the ball screw 142, and are fixed to the adjustment table 141. The chip holder 146 is formed by attaching a cutter chip 149 to the holder 147 through a pin. The chip holder 146 further has one screw hole 147b and two holes 147c. The hole 147 b is engaged with the ball screw 142, and the two holes 147 c are engaged with the two guide bars 143. The holder chip 146 can be moved in the OO axis direction according to the rotation of the ball screw 142. The two guide rods 143 are provided for the purpose of guiding so that the tip holder 146 that moves according to the rotation of the ball screw 142 can be smoothly moved without tilting. Further, as shown in FIG. 11 (not shown in FIG. 12), the two guide rods 143 are provided with springs 144 so that the chip holder 146 is biased.

Although the motor 145 uses a servo motor, the motor 145 is connected to the ball screw 142 via a gear (not shown), and the ball screw 142 rotates along with the rotation of the motor 145. ing. When the motor 145 rotates, the ball screw 142 rotates, and the chip holder 146 moves in the OO axis direction by the rotation of the ball screw 142.

  In the present invention, hereinafter, the OO axis is defined as an offset axis, and the movement of the OO axis is defined as an offset movement.

  The chip holder 146 of the third embodiment has an offset shaft and can be offset and controlled by a motor 145. Further, as described above, since the rotary cutter head 150 is controlled and rotated with the scribe head as the central axis Q, the tip holder 146 attached to the rotary cutter head 150 has an offset amount P from the central axis Q. It can be controlled and rotated. The offset amount P can be freely set since the tip holder 146 can be controlled to offset. In the rotary cutter heads in the first and second embodiments described above, when changing the offset amount P, the cutter head must be removed and reattached to a predetermined position. However, the rotary cutter head according to the third embodiment does not need to be reattached, and the offset amount P can be changed by inputting offset position information from the operation panel in advance. Thereby, the operation rate of a scribe device can be raised. Further, since the offset movement control can be freely performed, the width can be widened to the scribe shape to be scribed.

  Hereinafter, a simple scribe shape model that can be produced using the rotary cutter head 150 of the third embodiment will be described with reference to FIG. Here, in FIG. 13A, the alternate long and short dash line indicates the movement trajectory of the central axis Q of the scribe head (which is also the central axis of the arm axis), and the arrow indicates the traveling direction of the movement. . Q1, Q2, Q3, Q4, and Q5 are movement stop points and indicate positions where the movement has stopped. Further, a solid line R indicates a scribe line, and is composed of R1, R2, R3, and R4 scribe lines formed by the cutter chip 149. R1 is a straight line parallel to the X axis, R2 is a straight line inclined with respect to the X axis, R3 is a curve of a quarter circle, and R4 is a straight line parallel to the Y axis. These scribe lines are scribe lines that are connected continuous lines. R1, r2, r3, and r4 indicate inflection points of the scribe line. P1, P2, Pm, and Pn indicate offset amounts. The angle 90 ° shown at the stop point Q1 indicates the position angle of the cutter head 150 with respect to the X axis in the traveling direction of the central axis Q of the scribe head. Similarly, it is shown at the stop point Q3. Θ represents a position angle larger than 90 ° of the cutter head 150 with respect to the traveling direction X-axis. The angle 90 ° shown at the stop point Q5 indicates the position angle of the cutter head 150 relative to the X axis and the rotation angle of the cutter head 150.

The scribe lines R1 to R4 are formed by the following scribe method.
First, (1) at the stop point of Q1, the Z-axis drive is performed to raise the rotary cutter head 150 (this raises the cutter head 150 by raising the scribe head). A position angle at which the cutter head 150 is 90 ° with respect to the axis is set using a position variable means, and an offset amount P1 is set using a position variable means serving as an offset position control unit.
Next, (2) the cutter head 150 is lowered to bring the cutter tip 149 into contact with the glass surface under the required pressing force, and then linearly moves in the X-axis direction to the stop point Q2 to scribe R1. Form a line.
Next, (3) the cutter head 150 is raised at the stop point Q2, the cutter head 150 is moved to the stop point Q3 in the raised state, and the cutter head 150 is rotated to rotate the angle θ2 (in FIG. 13). In (a), θ2 is set to a position angle of greater than 90 °, and further, offset movement is performed to set the offset amount P2. This offset amount P2 is the distance between the inflection point r2 and the stop point Q3.
Next, (4) The cutter head 150 is lowered at the point of Q3, the cutter tip 149 is grounded to the glass surface under the required pressing force, and the scribe head is linearly moved to the stop point of Q4, simultaneously offset. The offset is continuously increased from P2 to Pm by moving, and scribing is performed with the cutter tip 149. As a result, an inclined scribe line R2 is formed. When the cutter head 150 is swung to a θ angle greater than 90 ° at the point Q3, the blade direction of the cutter tip 149 is in the state of the inflection point r3. Then, even if the scribing head is advanced to the point Q4 while continuously performing offset movement in this state, scribing can be smoothly performed without applying a large load to the cutter tip 149.

Next, (5) the cutter head 150 is raised at the stop point Q4, and the scribe head is driven to the X and Y axes to move to the point Q5. Then, the cutter head 150 is rotated to set a position angle of 90 ° with respect to the X axis, and further, offset movement is performed to set the offset amount to Pn. The offset amount Pn is the distance between the inflection point r3 and the point Q5.
Next, (6) the cutter head 150 is lowered at the point Q5, the cutter tip 149 is grounded to the glass surface under a required pressing force, and in this state, the cutter head 150 is driven to rotate 90.degree. Do a scribe at. As a result, a scribe line having a curve of a quarter circle of R3 is formed.
Next, (7) the scribe head is linearly moved in the Y-axis direction with the ¼ circle scribe line R3 applied in (6) above, and the scribe line R4 is formed by linear movement of the cutter tip 149.

  By performing the above scribing method, a continuous scribe line composed of R1, R2, R3, and R4 can be obtained. And if such a scribe line is formed over the entire circumference and the glass is cut along the scribe line, it has a straight line parallel to the X axis, a straight line parallel to the Y axis, a curved curve, and an inclination. An irregular shape with a mixture of straight lines (in the present invention, an irregular shape with a straight line parallel to the X-axis and the Y-axis, a straight line with an inclination or a non-arc curve, etc. in addition to the arc curve) Glass).

  Next, a method for forming the scribe line shown in FIG. 13B will be described. Here, the shape of FIG. 13B shows a part of an elliptical shape. In FIG. 13B, the alternate long and short dash line indicates the movement locus of the central axis Q of the scribe head (which is also the central axis of the arm axis), and the arrow indicates the direction of movement in the X-axis direction. Moving. Q1, Q2, Q3, Q4, Q5,... Are movement stop points and indicate positions where the movement has stopped. A solid line R indicates a scribe line, which is formed by connecting R1, R2, R3, R4, R5,... Scribe lines formed by a cutter chip 149. R1, r2, r3, r4, r5,... Indicate inflection points of the scribe line. .Theta.1, .theta.2, .theta.3, .theta.4,... Indicate the position angle of the cutter head 150 with respect to the traveling direction of the scribe head at each stop point. That is, the position angle of θ1 at the Q1 point, the position angle of θ2 at the Q2 point, and the like. The position angle of the cutter head 150 changes at each stop point. These position angles are adjusted by the rotation control means. .Gamma.1, .gamma.2, .gamma.3, .gamma.4,... Indicate the rotation angle of the rotary cutter head 150 during scribing. P1, P2, P3, P4,... Indicate offset amounts, and P1 is the distance between the inflection point r1 and the point Q1. Similarly, P2 is the distance between the inflection point r2 and the point Q2, and P3 is the distance between the inflection point r3 and the point Q3. The offset movement of the chip holder 146 is performed at each stop point, and the offset amount changes.

  Here, when the cutter tip 149 is grounded to the glass surface under a predetermined pressing force at the stop point Q1, and the cutter head 150 is rotationally moved at an angle γ1 under the offset amount P1, an arc scribe line R1 is formed. Is obtained. Similarly, when the cutter head 150 is rotationally moved at an angle γ2 under the offset amount P2 at the stop point Q2, an arc scribe line R2 is obtained. This is sequentially repeated to obtain scribe lines R1, R2, R3, R4, R5,. And if this is connected, the approximate curve of a gentle ellipse will be obtained.

Hereinafter, a method for forming a scribe line having the shape shown in FIG. 13B will be described. First, (1) the cutter head 150 is raised at the point of Q1, and the position angle of θ1 is set using the rotation control means of the cutter head 150. Further, the offset movement of the chip holder 146 is performed by using the position variable means of the chip holder 146 to set the offset amount P1.
Next, (2) the cutter head 150 is lowered, the cutter tip 149 is grounded to the glass surface under a predetermined pressing force, and the cutter head 150 is rotationally moved by γ1 angle using the rotation control means. As a result, an R1 scribe line by the cutter tip 149 is obtained.
Next, (3) the cutter head 150 is raised, the scribe head is linearly moved to the point Q2, the rotation control means is used to set the cutter head 150 to the position angle θ2, and the position variable means is used. The offset amount P2 of the chip holder 146 is set.
Next, (4) the cutter head 150 is lowered to bring the cutter tip 149 into contact with the glass surface under a predetermined pressing force, and the cutter head 150 is rotated by a γ2 angle using the rotation control means. As a result, a scribe line R2 is obtained.
Thereafter, the operations (3) and (4) are performed for each point after the point Q3 to form a scribe line after the R3.

  FIG. 13B shows a part of the scribe line, but an elliptical shape can be obtained by performing the above forming method over one round. Further, depending on the shape of the outer shape, if a lot of stop point positions are provided and the offset amount and the rotation angle of the cutter head are changed in small increments, a considerably complicated deformed curve shape can be obtained. When the glass is cut along the scribe line, a deformed curve shaped part is obtained.

  In addition, the scribing operation described above includes the position coordinates of the stop points of Q1, Q2,..., The position angles of θ1, θ2,..., The rotation angles of γ1, γ2,. All of the operations are automatically performed by inputting information such as the offset amount of the signal into the drive circuit in advance. In the case of a gentle outline curve, a scribe shape can be formed without requiring much time. If the contour curve is extremely rugged, it takes a little time to form the scribe, but the contour curve of the cut glass is quite smooth and beautiful. In addition, the cut surface is finished quite neatly.

  As described above, it is possible to manufacture a glass having a considerably complicated outer shape by providing a position variable means that can automatically control the chip holder.

  The rotary cutter head 150 according to the third embodiment is provided with one position variable unit that serves as the offset position control unit 140, but it is also possible to provide two. When two are provided, a ring-shaped glass is obtained.

  As described above, the rotary cutter head, the scribing apparatus, the scribing method, and the like of the present invention have been described with the embodiment and Examples 1, 2, and 3. Among them, description has been given by taking glass as the brittle material, but ceramics such as quartz, alumina, zirconia, ticker silicon, and silicon carbide can be cited as brittle materials other than glass. Any of these brittle materials can be applied in the same manner as glass.

It is a perspective view of the principal part of the scribe device concerning an embodiment of the present invention. It is a side view of the scribe head accommodating part and rotary cutter head in FIG. FIG. 3 is a perspective view of the arm shown in FIG. 2. It is explanatory drawing which showed the scribe state of the cutter chip by the rotational drive of the arm in FIG. FIG. 5A is a plan view showing a scribe shape scribed by the scribing device in FIG. 1, FIG. 5A is a circular shape, FIG. 5B is an oval shape, and FIG. A substantially rectangular shape with () is shown. It is a perspective view of the rotary cutter head which concerns on Example 1 of this invention. It is a top view of the glass obtained by the scribing method with the rotary cutter head in FIG. It is a side view of the scribing head accommodating part and rotary cutter head attached to the scribing apparatus according to Embodiment 2 of the present invention. FIG. 9 is a perspective view of the rotary cutter head shown in FIG. 8. It is the perspective view which showed the other structure which provided the position variable means of the long window hole in the arm. It is a side view of the rotary cutter head which concerns on Example 3 of this invention. It is the perspective view seen from the down slanting direction of the offset position control unit in FIG. FIG. 13A is a plan view showing the shape of a scribe line scribed using the rotary cutter head in FIG. 11. FIG. 13A is a scribe line formed by a straight line and a curve, and FIG. The scribe line is shown. It is a perspective view of the glass cutting device shown by patent document 1. FIG.

Explanation of symbols

20 scribing device 21 device main body 22 table 23 operation panel 24 bridge 25 support 26 guide bar 27 guide 28 head moving plates 29, 33, 83, 145 motor 30, 80 scribing head storage 31, 81 head lifting plates 32, 82 scribing Head 32a, 82a Head body 32b, 82b Bearing 34, 84 Belt 40, 60, 90, 110, 130 Arm 41, 61, 91, 111, 131 Arm shaft 42, 62, 92, 112, 132 Arm plate 42b, 62b1, 62b2, 62b3, 62b4, 112b Hole 45, 85 Pulley 46, 66, 96, 116, 146 Tip holder 47, 97, 117, 147 Holder 48, 98 Pin 49, 69, 99, 119, 149 Cutter tip 50, 70, 100, 120 , 150 Rotary cutter head 82c Plug 82d Hollow portion 88 Compressed air 92c, 112c Long window hole 93 Piston 95, 95 Nut 140 Offset position control unit 141 Adjustment base 142 Ball screw 143 Guide rod 144 Spring G, G1 Glass P, P1, P2 , P3, P4, Pm, Pn Offset amount Q Center axis Q1, Q2, Q3, Q4, Q5 Movement stop point R, R1, R2, R3, R4, R5 Scribe lines θ1, θ2, θ3, θ4 Position angles γ1, γ2 , Γ3, γ4 Rotation angle r1, r2, r3, r4, r5 Inflection point

Claims (17)

A cutter head attached to a lower portion of a scribe head, the cutter head comprising an arm and a tip holder provided with a cutter tip, wherein the arm is attached to the scribe head so as to be capable of rotation control, and the tip holder is A rotary cutter head, wherein the rotary cutter head is attached to an arm and provided at a position offset from a central axis of the scribe head, and rotates around the central axis of the scribe head by the rotation of the arm. 2. The rotary cutter head according to claim 1, wherein the arm rotates in a controllable manner with a central axis of the scribe head as a rotation central axis via a rotation control unit. The rotary cutter head according to claim 2, wherein the rotation control means includes at least a motor and a transmission member that transmits the rotation of the motor to the arm. The rotary cutter head according to claim 1 or 2, wherein the arm has a position variable means for making the offset amount of the tip holder variable by a predetermined amount. 5. The rotary cutter head according to claim 4, wherein the position changing means comprises a plurality of chip holder mounting holes provided at a required interval. The rotary cutter head according to claim 4, wherein the position varying means includes a long window hole. 5. The rotary cutter according to claim 4, wherein the position varying means comprises a motor and a slide mechanism member that slides the chip holder, and the position variation of the chip holder is automatically controllable. head. 2. The rotary cutter head according to claim 1, wherein a pressing force control means capable of controlling the pressing force of the cutter chip according to the thickness of the brittle material is provided on the scribe head. A scribing head that can controllably move along the vertical axis, the horizontal axis, and the vertical axis on the surface of the workpiece made of a brittle material fixed to the work table is provided, and the workpiece is scribed with the cutter tip of the cutter head provided on the scribe head. The scribing apparatus to perform, wherein the cutter head is the rotary cutter head according to any one of claims 1 to 8. A tip provided with an arm and a cutter tip that can control the rotation of the cutter head attached to the lower part of the scribe head that can be controlled to move along the vertical axis, horizontal axis, and vertical axis on the surface of the workpiece made of a brittle material fixed to the work table. A holder, and the arm is attached to the scribe head, and the tip holder can be controlled to rotate about the central axis of the scribe head via a rotation control means. Attach one or two at a position offset from the center axis of the head, rotate the arm to rotate the tip holder around the center axis of the scribe head, and use the cutter tip provided on the tip holder to move the workpiece A scribing method characterized by performing scribing. A tip provided with an arm and a cutter tip that can control the rotation of the cutter head attached to the lower part of the scribe head that can be controlled to move along the vertical axis, horizontal axis, and vertical axis on the surface of the workpiece made of a brittle material fixed to the work table. A holder, and the arm is attached to the scribe head, and the tip holder can be controlled to rotate about the central axis of the scribe head via a rotation control means. Attach one or two at a position offset from the central axis of the head, rotate the tip holder by rotating the arm, and move the tip holder linearly by moving the scribe head on the horizontal or vertical axis The chip holder is rotated and linearly moved to perform the above Scribing method characterized by a cutter tip provided on Puhoruda perform scribing the workpiece. A tip provided with an arm and a cutter tip that can control the rotation of the cutter head attached to the lower part of the scribe head that can be controlled to move along the vertical axis, horizontal axis, and vertical axis on the surface of the workpiece made of a brittle material fixed to the work table. A holder, and the arm is attached to the scribe head, and the tip holder can be controlled to rotate about the central axis of the scribe head via a rotation control means. One or two are attached via position variable means that can be automatically controlled at a position offset from the central axis of the head, and the tip holder is rotated by the rotational drive of the arm, and the horizontal axis or the scribe head The tip holder is linearly moved by a vertical drive, and the controllable position is The tip holder is rotated by the changing means and offset movement other than linear movement is performed, and the workpiece is scribed with a cutter tip provided in the chip holder by combining rotational movement, linear movement and offset movement of the chip holder with each other. A scribing method characterized by performing. The scribing method according to claim 10, 11 or 12, wherein the rotation control means comprises at least a motor and a transmission member for transmitting the rotation of the motor to the arm. 13. The scribing method according to claim 12, wherein the position changing means includes a motor and a slide mechanism member that slides the chip holder. A brittle material part, wherein a circular part or a circular ring-shaped part is formed by the scribing method according to claim 10. 12. The scribe method according to claim 11, wherein an oval part, an oval ring-shaped part, a substantially rectangular part with four corners or a substantially rectangular ring part with four corners are formed. Brittle material parts 13. The scribe method according to claim 12 is used to form a deformed part in which the outer shape is a mixture of a curved line and a straight line, a part in which the outer shape is a deformed curve, or a ring-shaped part in which these outer shapes are formed. A brittle material part characterized by that.

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