TWI499565B - Scribing head and the scribing head using the scribing apparatus - Google Patents

Description

Dash head and scribing device using the same

The present invention relates to a scribing head for forming a scribe groove for a brittle material and a scribing device using the same.

In the conventional scribing apparatus, the scribing head which has the holder joint portion having the cutter wheel at the tip end and the holder is held in a direction substantially perpendicular to the surface of the brittle material, and the scribing head is moved up and down on the surface of the brittle material. The brittle material is relatively moved to the scribing head to form a scribe groove on the surface of the brittle material (see Patent Document 1). In addition, the scribing head is arranged such that the center position of the rotating shaft of the cutter wheel is not located on the axis of the rotating shaft of the holder joint portion to generate the tool wheel effect, so that the straightness of the cutter wheel is improved.

However, in the case where the holder joint portion is freely rotatable in order to cause the effect of the tool wheel, the surface of the brittle material forming the scribe groove may be in a state of being (for example, a slight unevenness on the surface of the brittle material). State) to disengage the cutter wheel from a predetermined line forming the scribe groove. When the cutter wheel is disengaged from the predetermined line forming the scribe groove, the cutter wheel has a force to return in the direction in which the scribe head moves in the direction in which the scribe wheel moves, so that the scribe groove formed at the end may be bent. Therefore, when it is required to form the scribe groove with high precision in the brittle material, the scribe head does not use the foot cutter effect, and the holder joint portion is fixed to the holder, and the slash groove is formed in the brittle material.

In this regard, in the case where the conventional scribing head is required to form the scribing groove with high precision, the holder joint portion that can be freely rotated is fixed by the method described below. Fig. 1 is a cross-sectional view showing a conventional scribing head cut along a plane parallel to a surface of a brittle material forming a scribe groove. As shown in Fig. 1, in the conventional scribing head 101, the holder joint portion 110 having the cutter wheel 111 at the tip end holds the holder 120 in a rotatable manner about the rotation shaft 112.

The conventional scribing head 101 is provided with two screws 121 and 121 for stopping the holder 120 at a position parallel to the side surface of the holder joint portion 110 in order to stop the rotation of the holder 120 of the holder joint portion 110. The screws 121 and 121 press the both ends of the holder joint portion 110 of the swing shaft 112 from the same direction, and stop the rotation of the holder joint portion 110 of the holder 120.

[Patent Document 1] International Publication No. 2005/063459

In the conventional scribing head 101, the cutter wheel 111 is pressed against the surface of the brittle material, and the holder joint portion 110 is oriented in a desired direction by the foot cutter effect, and the two screws 121 and 121 which are provided on the holder 120 are locked. The holder joint portion 110 is pressed to stop the rotation. However, if the pressing of either one of the screws is large, there is a problem that the holder joint portion 110 is in a direction different from the desired direction and cannot be fixed in the desired direction. In order to stop the rotation of the holder joint portion 110 in a desired direction, it is necessary to repeat the direction correction of the holder joint portion 110 by the foot cutter wheel effect and the tightening of the two screws 121 and 121, which is troublesome in operation.

Further, when the cutter wheel 111 included in the holder joint portion 110 is exchanged, the direction of the leading edge of the blade 111 of the cutter wheel 111 is corrected, and the holder joint portion 110 must first be freely rotatable. However, in the conventional scribing head 101, after the holder joint portion 110 is pressed by the two screws 121 and 121 that are locked to the holder 120 to temporarily stop the rotation, the holder joint portion 110 is again freely rotatable. Therefore, it is necessary to loosen the work of the two screws 121 and 121, and the smooth exchange of the cutter wheel 111 and the smooth correction of the direction of the leading edge of the cutter wheel 111 cannot be achieved.

The present invention is made in view of the above circumstances, and provides a state in which the holder joint portion can be easily switched and the holder can be freely rotated, and the holder joint portion is fixed to the holder, and the holder joint portion can be in a desired direction. It is fixed for the purpose of forming a scribe head of a scribe groove and a scribing apparatus using the scribe head.

In order to achieve the above object, a scribing head according to a first aspect of the invention is a scribing head, comprising: a cutter wheel that is pressed against a brittle material to form a scribe groove; and the cutter wheel is mounted to be held in a direction of the scribe groove. a joint portion; a holder for holding the swing shaft of the holder joint portion substantially perpendicular to the surface of the brittle material to be freely rotatable; and the scribing material for scribing the holder And a rotation stop means for stopping the rotation of the rotation shaft of the holder joint portion; switching the rotation stop means to stop the rotation of the rotation shaft and freely rotating the rotation shaft The means of switching the state of the rotation.

According to a second aspect of the invention, in the first aspect of the invention, the rotation stopping means includes a pressing portion that presses the rotation shaft of the holder joint portion, and the pressing portion and the holder joint portion are The frictional resistance of the rotating shaft stops the rotation of the aforementioned rotating shaft.

Further, in the second aspect of the invention, in the second aspect of the invention, the rotation stopping means presses the pressing portion toward the rotating shaft of the holder joint portion by a magnetic force to rotate the rotating shaft. stop.

According to a second aspect of the invention, in the second aspect of the invention, the rotation stopping means presses the pressing portion toward the rotation axis of the holder joint portion by an elastic force to rotate the rotation shaft. stop.

Further, in the second aspect of the invention, in the second aspect of the invention, the rotation stopping means presses the pressing portion toward the rotation shaft of the holder joint portion by mechanical force to rotate the rotary shaft. Stop.

Further, in the second aspect of the invention, in the second aspect of the invention, the rotation stopping means presses the pressing portion toward the rotating shaft of the holder joint portion by air pressure to rotate the rotating shaft. Stop.

Next, in order to achieve the above object, the scribing apparatus according to the seventh aspect of the invention includes the scribing head according to any one of claims 1 to 6.

In the first invention and the seventh aspect of the invention, the rotation switching means can switch the state in which the rotation stop means stops the rotation of the rotation axis and the state in which the rotation of the rotation axis is free. Therefore, the scribing head and the scribing device using the scribing head are switched to the rotation stopping means to stop the rotation of the rotating shaft when the holder joint portion faces the desired direction. In this state, the scribing head fixes the holder joint portion in a desired direction, and the scribe groove can be formed with high precision in the brittle material.

In the second invention and the seventh aspect of the invention, the rotation stopping means has a pressing portion that presses the rotation shaft of the holder joint portion, and the frictional resistance between the pressing portion and the rotation shaft of the holder joint portion is The rotation of the aforementioned rotating shaft is stopped. Therefore, the scribing head and the scribing device using the scribing head are the rotation stopping means for pressing the pressing portion against the rotating shaft to stop the rotation of the rotating shaft, so that it is not necessary to process the rotating shaft into a special shape. The rotation of the rotary shaft can be stopped by a simple configuration.

In the third invention and the seventh aspect of the invention, the rotation stopping means stops the rotation of the rotary shaft by pressing the pressing portion to the rotation axis of the holder joint portion by a magnetic force. Therefore, the scribing head and the scribing device using the scribing head can easily switch the holder joint portion to the holder by switching the rotation switching means to the state in which the pressing portion is magnetically pressed against the pressing portion and the non-pressing state. The fixed state and the holder joint portion are freely rotatable.

In the fourth invention and the seventh aspect of the invention, the rotation stopping means stops the rotation of the rotation shaft by pressing the pressing portion toward the rotation axis of the holder joint portion by elastic force. Therefore, the scribing head and the scribing device using the scribing head can easily switch the holder joint portion to the holder by switching the rotation switching means to the state in which the pressing portion is elastically pressed against the pressing portion and the non-pressing state. The fixed state and the holder joint portion are freely rotatable.

In the fifth invention and the seventh aspect of the invention, the rotation stopping means stops the rotation of the rotating shaft by pressing the pressing portion to the rotating shaft of the holder joint portion by mechanical force. Therefore, the scribing head and the scribing device using the scribing head can easily switch the holder joint portion to be held by the state in which the pressing portion is mechanically pressed against the pressing portion by the switching rotation switching means and the non-pressing state. The fixed state and the holder joint portion are freely rotatable. The mechanical force refers to a mechanical mechanism that adjusts the width of the slit provided in the pressing portion with a screw, and the pressing portion presses the object (swing axis).

In the sixth invention and the seventh aspect of the invention, the rotation stopping means stops the rotation of the rotating shaft by pressing the pressing portion toward the rotating shaft of the holder joint portion by air pressure. Therefore, the scribing head and the scribing apparatus using the scribing head can easily switch the holder joint portion by pressing the rotation switching means to press the pressing portion with the air pressure to change the state of the pressing portion. The state in which the holder is fixed and the holder joint portion are freely rotatable.

According to the above configuration, the scribing head and the scribing device using the scribing head are switched to the state in which the rotation of the rotating shaft is stopped by the rotation switching means, so that the holder joint portion can be fixed in the desired direction. The scribe groove can be formed with high precision in the brittle material.

(Embodiment 1)

Fig. 2 is a side view showing a schematic configuration of a scribing head according to a first embodiment of the present invention. Further, Fig. 3 is a front view of a scribing apparatus using a scribing head according to Embodiment 1 of the present invention.

First, the description will be given for the scribing device used in the scribing head shown in Fig. 2. As shown in FIG. 3, the scribing device 30 is provided with a support table 32 that supports the brittle material 31 and can be moved. The support table 32 can move the brittle material 31 in the X direction (the direction to the left and right of the paper surface of Fig. 3) and the Y direction (the direction perpendicular to the paper surface of Fig. 3). Further, the scribing device 30 is provided with a scribing head 10 across the bridge portion 33 of the support table 32 in the X direction. The scribing head 10 is freely movable up and down in the Z direction of the brittle material 31 forming the scribe groove (in the direction of the surface of the sheet of Fig. 3). Therefore, the scribing head 10 can press the cutter wheel 11 provided at the tip end to the brittle material while moving the support table 32 in the X direction to form the X-direction scribe groove in the brittle material 31.

The scribing head 10 of the first embodiment will be described in more detail. As shown in FIG. 2, the scribing head 10 is attached to the cutter wheel 11 in which the brittle material 31 forms a scribe groove so as to be rotatable at the front end of the holder joint portion 12. The cutter wheel 11 has a blade 11a that is rotated in a direction perpendicular to the paper surface of Fig. 2 and has a V-shaped cross section. The holder joint portion 12 is held by the rotation shaft 12a provided on the opposite side of the cutter wheel 11 side so as to be freely rotatable to the holder 13. Further, when the scribing head 10 uses the foot wheel effect, the center position of the rotary shaft of the cutter wheel 11 is offset from the axis of the rotary shaft 12a, and the scribing head 10 does not utilize the effect of the foot cutter wheel. The center position of the rotary shaft of the cutter wheel 11 may be provided on the axis of the rotary shaft 12a. Further, in the scribing head 10 of the first embodiment, the presence or absence of the effect of the foot wheel is not particularly limited.

The holder 13 holds the holder joint portion 12 rotatably by the rotation shaft 12a. For example, the holder 13 holds the rotation shaft 12a through the bearing to keep the holder joint portion 12 freely rotatable. Further, the holder 13 has a space 13a above the rotary shaft 12a, and the space 13a includes a rotation stopping means for stopping the rotation of the rotary shaft 12a, and switching the rotation stop means to rotate the rotary shaft 12a. The state in which the stop is performed and the means for switching the rotation of the state in which the rotation of the rotary shaft 12a is free.

In the rotation stopping means of the first embodiment, the permanent magnet 14 is used as a pressing portion for pressing the rotary shaft 12a, and the permanent magnet 14 is pressed by the magnetic force to the rotary shaft 12a. The permanent magnet 14 is not rotated in the direction of rotation of the rotary shaft 12a, so that the support portion 15 is moved in the vertical direction in the space 13a in the vertical direction of the sheet of FIG. Therefore, the support portion 15 is moved in the downward direction of the paper of Fig. 2 so that the permanent magnet 14 and the rotary shaft 12a are pressed by the magnetic force, and the permanent magnet 14 is pressed against the rotary shaft 12a. The force that presses the permanent magnet 14 toward the rotary shaft 12a is the gravitational force between the permanent magnet 14 and the rotary shaft 12a generated by the magnetic force. Further, in order to cause a gravitational force by the magnetic force between the permanent magnet 14 and the rotary shaft 12a, the portion of the rotary shaft 12a that is in contact with the permanent magnet 14 must be a ferromagnetic material such as magnet or iron.

Fig. 4 is a side view showing a schematic configuration in which the permanent magnet 14 of the scribing head 10 according to the first embodiment of the present invention and the rotary shaft 12a are magnetically connected. As shown in Fig. 4, when the permanent magnet 14 and the rotary shaft 12a are magnetically connected, the permanent magnet 14 itself is pressed against the rotary shaft 12a by the magnetic force. Therefore, frictional resistance is generated between the permanent magnet 14 and the rotary shaft 12a, whereby the permanent magnet 14 causes the rotation of the rotary shaft 12a to stop. Further, in the permanent magnet 14, the strength of the magnetic force generated between the permanent magnet 14 and the rotary shaft 12a by the frictional resistance that stops the rotation of the rotary shaft 12a is required, and for example, a magnet having a stronger magnetic force is used. Further, even if the magnetic force is weak, the surface of the permanent magnet 14 that is in contact with the rotary shaft 12a and the surface of the rotary shaft 12a that is in contact with the permanent magnet 14 are coated with a resin film having a high friction coefficient or the like. The permanent magnet 14 can also stop the rotation of the rotary shaft 12a.

The rotation shaft 12a is as described above, and the permanent magnet 14 and the rotation shaft 12a are magnetically followed by a rotation stop. On the other hand, in order to allow the rotation of the rotary shaft 12a to proceed freely, it is necessary to separate the permanent magnet 14 by the magnetic force from the rotary shaft 12a. In the case where the permanent magnet 14 is separated from the rotary shaft 12a by the magnetic force, it is necessary to oppose the attraction force generated by the magnetic force generated between the permanent magnet 14 and the rotary shaft 12a, so that the support portion 15 faces the paper surface of Fig. 2 The movement separates the permanent magnet 14 from the rotary shaft 12a. Here, a lifting mechanism for moving the permanent magnet 14 up and down in the space 13a will be specifically described.

Fig. 5 is a side view showing a schematic configuration of a lifting mechanism of the support portion 15 of the scribing head 10 according to the first embodiment of the present invention. As shown in Fig. 5, a slit window 13b is provided in the direction in which the holder 13 is in the holder joint portion 12, and the support portion 15 moves the slit window 13b. When the support portion 15 is moved on the lower side of the slit window 13b (in the direction of the paper surface of Fig. 5), the permanent magnet 14 is also moved in the direction of the rotary shaft 12a, and the permanent magnet 14 and the rotary shaft 12a are followed by the magnetic force. On the other hand, in the case where the support portion 15 is moved on the upper side of the slit window 13b (in the direction on the paper surface of Fig. 5), the permanent magnet 14 is also moved in the direction of the holder 13, and the permanent magnet 14 is rotated by the magnetic force from the rotary shaft 12a. Separation. Further, the support portion 15 has a configuration in which the fixed holder 13 is pressed and locked so as to be fixable at any position of the slit window 13b. Further, the elevating mechanism of the support portion 15 is a state in which the permanent magnet 14 is switched to stop the rotation of the rotary shaft 12a (the state in which the permanent magnet 14 and the rotary shaft 12a are pressed by the magnetic force) and the rotation of the rotary shaft 12a. The rotation switching means of the state in which the movement is free (the state in which the permanent magnet 14 and the magnetic force of the rotary shaft 12a are separated from each other) functions.

As described above, in the scribing head 10 of the first embodiment, the permanent magnet 14 is moved by the support portion 15 by moving the slit window 13b, and the permanent magnet 14 is pressed toward the rotary shaft 12a by the magnetic force, and the permanent magnet 14 is pressed against the rotary shaft 12a. Since the rotation of the rotary shaft 12a is stopped, the state in which the holder joint portion 12 is fixed to the holder 13 and the holder joint portion 12 are freely rotatable to the holder 13 can be easily switched, and can be fixed in a desired direction. The holder portion 12 is held. The scribing head 10 according to the first embodiment includes a rotation stopping means for stopping the rotation of the rotating shaft 12a of the holder joint portion 12, and switching the rotation stopping means to stop the rotation of the rotating shaft 12a. The rotation switching means in a state in which the rotation of the rotation shaft 12a is freely performed, in particular, in the rotation stopping means described in the claims 2 and 3, the pressing portion is magnetically biased to the holder joint The rotation shaft 12a of the portion 12 is pressed, and the rotation of the rotation shaft 12a is stopped by the frictional resistance between the pressing portion and the rotation shaft 12a of the holder joint portion 12.

In other words, in the scribing head according to the first embodiment, the brittle material presses the cutter wheel 11, and the holder joint portion 12 is oriented in the desired direction by the foot cutter effect, and only the support portion 15 provided on the holder 13 is directed to the slit window 13b. The lower side (in the direction of the paper surface of Fig. 5) is moved to fix the holder joint portion 12 to the holder 13. Further, when the cutter wheel 11 is exchanged, and the direction of the blade leading edge 11a of the cutter wheel 11 is corrected, only the support portion 15 provided on the holder 13 is directed to the upper side of the slit window 13b (on the paper surface direction of Fig. 5). Moving, the holder joint portion 12 can freely rotate the holder 13.

Further, the above-described first embodiment can be modified without departing from the scope of the invention. For example, in the case where the pressing portion is the permanent magnet 14 itself, the pressing portion may be formed by molding a resin or the like into which the permanent magnet 14 can be attached. Further, the present invention is not limited to the case where the permanent magnet 14 is provided in the pressing portion, and the portion of the rotating shaft 12a that is in contact with the permanent magnet 14 is the permanent magnet 14, and the pressing portion may be a ferromagnetic material such as iron.

Further, the present invention is not limited to the case where the magnet is provided in the pressing portion, and the pressing portion 15a is maintained in the state in which the pressing portion is pressed against the rotating shaft 12a, so that the pressing portion and the rotating shaft 12a are not required to be magnetically pressed, and mechanical force is required. The pressing portion may be pressed against the rotation axis 12a of the holder joint portion 12 by the rotation stopping means described in the claim 5.

(Embodiment 2)

Fig. 6 is a side view showing a schematic configuration of a scribing head 10 according to a second embodiment of the present invention. As shown in Fig. 6, the scribing head 10 according to the second embodiment of the present invention is the same as the scribing head 10 and the scribing device 30 according to the first embodiment of the present invention except that the configuration of the rotation stopping means is different. The same components are denoted by the same reference numerals, and the detailed description is omitted.

In the rotation stopping means of the second embodiment, the electromagnet 16 is used as a pressing portion for pressing the rotary shaft 12a, and the electromagnetic stone 16 is pressed against the rotary shaft 12a by a magnetic force. The electromagnet 16 is not rotated in the direction of rotation of the rotary shaft 12a, and is movable in the space 13a in the up-down direction of the paper of Fig. 6. Further, a permanent magnet 12c is provided in a portion of the rotary shaft 12a that is in contact with the electromagnet 16, and a permanent magnet 13c is provided in a portion of the holder 13 that is in contact with the electromagnet 16. Each of the permanent magnets 12c and 13c is disposed so as to face the same pole. For example, when the permanent magnet 12c faces the S pole on the side of the holder 13 and the side of the permanent magnet 13c opposite to the side of the rotary shaft 12a is the S pole, current flows to the electromagnet 16 to make the opposing holder 13 The side is the S pole and the side opposite to the rotary shaft 12a is the N pole, and the magnetic force is followed by the rotary shaft 12a. On the other hand, the electromagnet 16 is caused to flow a current so that the side opposite to the holder 13 is the N pole and the side opposite to the rotary shaft 12a is the S pole, and the magnetic force is followed by the holder 13.

As shown in Fig. 6, when the electromagnet 16 is followed by the rotary shaft 12a by the magnetic force, the electromagnet 16 itself is pressed against the rotary shaft 12a by the magnetic force. Therefore, a frictional resistance is generated between the electromagnet 16 and the rotary shaft 12a, whereby the frictional resistance of the rotary shaft 12a is stopped by the frictional resistance electromagnet 16. Further, in the electromagnet 16, the frictional resistance which stops the rotation of the rotary shaft 12a is required to generate a current which is generated by the strength of the magnetic force between the electromagnet 16 and the rotary shaft 12a. Further, even if the magnetic force is weak, the surface of the permanent magnet 14 that is in contact with the rotary shaft 12a and the surface of the rotary shaft 12a that is in contact with the permanent magnet 14 are coated with a resin film having a high friction coefficient or the like. The electromagnet 16 also stops the rotation of the rotary shaft 12a.

In order to allow the rotation of the rotary shaft 12a to proceed freely, it is necessary to separate the electromagnet 16 that is magnetically separated from the rotary shaft 12a. When the magnetism 16 to be separated by the magnetic force is separated from the rotary shaft 12a, it is necessary to flow a current to the electromagnet 16 so that the side opposite to the holder 13 is the N pole and the side facing the rotary shaft 12a is the S pole. A repulsive force caused by the magnetic force is generated between the electromagnet 16 and the permanent magnet 12c of the rotary shaft 12a. Further, since the side of the electromagnet 16 facing the holder 13 is the N pole, the S pole of the permanent magnet 13c provided on the side of the holder 13 is followed by the magnetic force. In other words, the permanent magnet 12c is provided on the side of the rotating shaft 12a, and the permanent magnet 13c is provided on the side of the holder 13 to switch the direction of the current flowing through the electromagnet 16 so that the electromagnet 16 is moved from the side of the rotating shaft 12a toward the holder 13 side. The elevating mechanism that moves the side of the holder 13 toward the side of the rotating shaft 12a. This lifting mechanism is a state in which the rotation of the rotary shaft 12a is stopped by switching the electromagnet 16 (the state in which the electromagnet 16 and the rotary shaft 12a are magnetically connected) and the rotation of the rotary shaft 12a is freely performed (the electromagnet is made). The rotation switching means of the holding member 13 and the holder 13 is in a state of magnetic force.

As described above, in the scribing head 10 of the second embodiment, the electromagnet 16 is pressed toward the rotary shaft 12a by the magnetic force, and the electromagnet 16 is pressed against the rotary shaft 12a to stop the rotation of the rotary shaft 12a, so that it can be easily switched and held. The joint portion 12 is fixed to the holder 13 and the holder joint portion 12 is rotatably held by the holder 13, and the holder joint portion 12 can be fixed in a desired direction. The scribing head 10 according to the second embodiment is configured such that the rotation stopping means described in the claim 3 presses the pressing portion to the rotation shaft 12a of the holder joint portion 12 by a magnetic force.

Further, the above-described second embodiment can be modified without departing from the scope of the invention. For example, the scribing head 10 is not limited to the configuration in which the permanent magnet 12c is provided in the rotating shaft 12a and the permanent magnet 13c is provided in the holder 13, and the permanent magnet 12c may be provided only in the rotating shaft 12a.

(Embodiment 3)

Fig. 7 is a side view showing a schematic configuration of a scribing head 10 according to a third embodiment of the present invention. As shown in Fig. 7, the scribing head 10 according to the third embodiment of the present invention is the same as the scribing head 10 and the scribing device 30 according to the first embodiment of the present invention except that the configuration of the rotation stopping means is different. The same components are denoted by the same reference numerals, and the detailed description is omitted.

In the rotation stopping means of the third embodiment, the plate 18 is used as a pressing portion, and the plate 18 is pressed against the rotary shaft 12a by an elastic force (for example, an elastic force of the spring 17). The plate 18 is not rotated in the direction of rotation of the rotary shaft 12a, so that the support portion 15 is moved in the vertical direction in the plane of the paper of Fig. 7 and can be moved in the vertical direction in the space 13a. The spring 17 is disposed between the plate 18 and the holder 13 and has a force to urge the plate 18 in the direction of the rotation shaft 12a. Therefore, as long as the plate 18 is not fixed by the support portion 15, the plate 18 presses the rotary shaft 12a due to the elastic force of the spring 17.

As shown in Fig. 7, when the plate 18 is pressed against the rotary shaft 12a by the elastic force of the spring 17, frictional resistance is generated between the plate 18 and the rotary shaft 12a due to the elastic force of the spring 17, whereby the frictional resistance plate is thereby actuated. 18 stops the rotation of the rotary shaft 12a. Further, the spring 17 needs to have an elastic force which causes the frictional resistance which stops the rotation of the rotary shaft 12a to be generated between the plate 18 and the rotary shaft 12a.

In order to allow the rotation of the rotary shaft 12a to proceed freely, the plate 18 pressed by the elastic force of the spring 17 must be separated from the rotary shaft 12a. That is, the support portion 15 must be moved against the elastic force of the spring 17 toward the paper surface of Fig. 7 to separate the rotary shaft 12a from the plate 18. The elevating mechanism for moving the plate 18 in the vertical direction in the space 13a can be the same as the elevating mechanism of the support portion 15 of the first embodiment. As shown in Fig. 5, the support portion 15 is separated from the upper side of the slit window 13b (toward the paper surface of Fig. 5) against the elastic force of the spring 17 by the slit window 13b provided in the holder 13, so that the plate 18 is separated from the rotary shaft 12a. . Further, the support portion 15 has a configuration in which the fixed holder 13 is pressed by the lock screw fixing mechanism 15a so as to be fixed at any position of the slit window 13b. Further, the elevating mechanism of the support portion 15 is a state in which the switching plate 18 stops the rotation of the rotary shaft 12a (a state in which the plate 18 presses the rotary shaft 12a) and a state in which the rotation of the rotary shaft 12a is freely performed ( The rotation switching means of the state in which the plate 18 is separated from the rotary shaft 12a functions.

As described above, in the scribing head 10 of the third embodiment, the support portion 15 moves in the slit window 13b to move the plate 18, and the elastic force of the spring 17 is pressed against the rotary shaft 12a to stop the rotation of the rotary shaft 12a. It is possible to easily switch the state in which the holder joint portion 12 is fixed to the holder 13 and the holder joint portion 12 to the state in which the holder 13 is freely rotatable, and the holder joint portion 12 can be fixed in a desired direction. The scribe head 10 of the third embodiment is configured such that the rotation stopping means described in the claim 4 presses the pressing portion to the rotation shaft 12a of the holder joint portion 12 by elastic force.

Further, the above-described third embodiment can be modified without departing from the scope of the invention. For example, the plate 18 is not limited to the configuration in which the rotary shaft 12a is pressed by the elastic force of the spring 17, and the rotary shaft 12a may be pressed by the elastic force of rubber or the like.

(Embodiment 4)

Fig. 8 is a side view showing a schematic configuration of a scribing head 10 according to a fourth embodiment of the present invention. As shown in Fig. 8, the scribing head 10 according to the fourth embodiment of the present invention is configured by the pressing portion 19 and the screw 20, and the scribing head 10 according to the first embodiment of the present invention. The same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the rotation stopping means of the fourth embodiment, the pressing portion 19 is pressed against the rotary shaft 12a by mechanical force. The pressing portion 19 presses the rotary shaft 12a with a mechanical lock stitch. As shown in Fig. 9, the pressing portion 19 has a hole 19a having a diameter that allows it to pass without contacting the rotary shaft 12a, and a slit 19b provided in the radial direction of the hole 19a from the outer surface of the pressing portion 19 to the hole 19a. Further, the pressing portion 19 has a screw hole 19c through which the screw 20 in Fig. 8 passes in the direction of the transverse slit 19b. Therefore, in a state where the hole 19a passes the rotation shaft 12a, the width of the slit 19b is reduced by the locking screw 20, and the diameter of the hole 19a is made small, and the pressing portion 19 can be mechanically pressed against the rotation shaft 12a. On the other hand, by increasing the width of the slit 19b by the loosening screw 20, the diameter of the hole 19a is increased, and the pressing portion 19 is not pressed against the rotary shaft 12a, so that the rotary shaft 12a can be freely rotated.

When the pressing portion 19 is pressed by the mechanical force to the rotary shaft 12a, frictional resistance is generated between the pressing portion 19 and the rotary shaft 12a by the mechanical force, whereby the frictional resistance pressing portion 19 causes the rotary shaft 12a to be rotated. The rotation stops. Further, the pressing portion needs the strength of the mechanical force generated between the pressing portion 19 and the rotating shaft 12a by the frictional resistance that stops the rotation of the rotary shaft 12a. On the other hand, when the pressing portion 19 pressed by the mechanical force is separated from the rotating shaft 12a, the width of the slit 19b is increased by the loosening screw 20, and the frictional resistance between the pressing portion 19 and the rotating shaft 12a is reduced. The rotary shaft 12a is free to rotate. Further, the screw 20 for adjusting the mechanical force of the width of the slit 19b is a state in which the pressing portion 19 is switched to stop the rotation of the rotary shaft 12a (the state in which the pressing portion 19 presses the rotary shaft 12a) and the rotary shaft 12a is made. The rotation switching means of the state in which the rotation is freely performed (the state in which the pressing portion 19 is separated from the rotation shaft 12a) functions.

As described above, in the scribing head 10 of the fourth embodiment, the pressing portion 19 is pressed against the rotary shaft 12a by the mechanical force that can be adjusted by the locking screw 20, so that the rotation of the rotary shaft 12a is stopped, so that the holder can be easily switched. The joint portion 12 is fixed to the holder 13 and the holder joint portion 12 is rotatably held by the holder 13, and the holder joint portion 12 can be fixed in a desired direction. The scribe head 10 of the fourth embodiment is configured such that the rotation stopping means described in the claim 5 presses the pressing portion to the rotation shaft 12a of the holder joint portion 12 by mechanical force.

Further, the above-described fourth embodiment can be modified without departing from the scope of the invention. For example, the pressing portion 19 is not limited to the case where a mechanical lock seam is used, and a fixing screw may be used. Fig. 10 is a perspective view of the pressing portion 21 using a fixing screw. As shown in Fig. 10, the pressing portion 21 has a hole 21a having a diameter that allows it to pass without contacting the rotary shaft 12a, and a screw hole 21b provided in the radial direction of the hole 21a from the outer side surface of the pressing portion 21 to the hole 21a. . In a state where the hole 21a passes the rotary shaft 12a, the screw inserted into the screw hole 21b is locked so that the rotary shaft 12a is pressed against the inner wall surface of the hole 21a. Therefore, frictional resistance is generated between the pressing portion 21 and the rotation shaft 12a, whereby the frictional resistance pressing portion 21 stops the rotation of the rotation shaft 12a. On the other hand, the rotary shaft 12a is separated from the inner wall surface of the hole 21a by the loosening screw, and the pressing portion 21 is separated from the rotary shaft 12a, so that the rotary shaft 12a can be freely rotated.

(Embodiment 5)

Fig. 11 is a side view showing a schematic configuration of a scribing head 10 according to a fifth embodiment of the present invention. As shown in Fig. 11, the scribing head 10 according to the fifth embodiment of the present invention is the same as the scribing head 10 and the scribing device 30 according to the first embodiment of the present invention except that the configuration of the rotation stopping means is different. The same components are denoted by the same reference numerals, and the detailed description is omitted.

In the rotation stopping means of the fifth embodiment, the pressing portion 22 is pressed against the rotary shaft 12a by the air pressure. The pressing portion 22 is not rotated in the turning direction of the rotary shaft 12a, so that the air pressure between the pressing portion 22 and the holder 13 which is one of the spaces 13a is changed, and is movable in the vertical direction in the space 13a. Fig. 12 is a plan view showing the pressing portion 22 of the fifth embodiment of the present invention. As shown in Fig. 12, the pressing portion 22 has a cylindrical groove 22a having a diameter substantially the same as the diameter of the rotary shaft 12a, and a plurality of holes 22b at the bottom of the groove 22a. Further, the groove 22a is fitted to one of the rotary shafts 12a so as to prevent air from leaking from between the groove 22a and the rotary shaft 12a.

As shown in FIG. 11, the holder 13 is provided with a tube 13d that can suck and suck the air between the pressing portion 22 and the holder 13. The pump is connected to the front end of the tube 13d to supply air between the pressing portion 22 and the holder 13 to increase the air pressure between the pressing portion 22 and the holder 13, and the pressing portion 22 is pressed downward in the direction of the sheet of FIG. The pressing portion 22 is pressed against the rotation shaft 12a. When the pressing portion 22 is pressed against the rotary shaft 12a by the air pressure, frictional resistance is generated between the pressing portion 22 and the rotary shaft 12a due to the air pressure, whereby the frictional resistance pressing portion 22 causes the rotary shaft 12a to be rotated. The rotation stops. Further, the air pressure between the pressing portion 22 and the holder 13 needs to be an air pressure generated between the pressing portion 22 and the rotating shaft 12a by the frictional resistance that stops the rotation of the rotating shaft 12a.

When the pressing portion 22 is separated from the rotating shaft 12a, the air between the pressing portion 22 and the holder 13 is discharged from the tube 13d, and the air pressure between the pressing portion 22 and the holder 13 is lowered, from the rotating shaft. 12a presses the pressing portion 22 against the paper surface of Fig. 11 in the upward direction. In addition, the elevating mechanism that changes the air pressure so that the pressing portion 22 moves up and down is a state in which the pressing portion 22 is switched to stop the rotation of the rotating shaft 12a (the state in which the pressing portion 22 presses the rotating shaft 12a) and the rotating shaft. The rotation switching means of the state in which the rotation of 12a is freely performed (the state in which the pressing portion 22 is separated from the rotation shaft 12a) functions.

As described above, in the scribing head 10 of the fifth embodiment, the pressing portion 22 is pressed against the rotary shaft 12a by the air pressure between the pressing portion 22 and the holder 13, so that the rotation of the rotary shaft 12a is stopped. The holder joint portion 12 is switched to the state in which the holder 13 is fixed, and the holder joint portion 12 is rotatably held by the holder 13, and the holder joint portion 12 can be fixed in a desired direction. The scribing head 10 according to the fifth embodiment is configured such that the rotation stopping means described in the claim 6 presses the pressing portion to the rotation shaft 12a of the holder joint portion 12 by air pressure.

Further, the above-described fifth embodiment can be modified without departing from the scope of the invention. For example, the tube 13d for air provided between the suction/reduction pressing portion 22 of the holder 13 and the holder 13 is not limited to one, and a plurality of tubes 13d may be provided in the holder 13.

10. . . Dash head

11. . . Knife wheel

11a. . . blade

12. . . Holder joint

12a. . . Rotary axis

13. . . Holder

13a. . . space

13b. . . Sewing window

13d. . . tube

12c, 13c‧‧‧ permanent magnet

14‧‧‧ permanent magnet (pressing part)

15‧‧‧Support Department

16‧‧‧Electromagnetic stone (pressing part)

17‧‧‧ Spring

18‧‧‧ board (pressing part)

19, 21, 22‧‧ ‧ press

20‧‧‧ screws

21a‧‧ hole

21b‧‧‧ screw holes

22a‧‧‧ slot

30‧‧‧Dashing device

31‧‧‧ brittle materials

32‧‧‧Support desk

33‧‧ ‧Bridge

Fig. 1 is a cross-sectional view showing a conventional scribing head cut along a plane parallel to a surface of a brittle material forming a scribe groove.

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

Fig. 3 is a front view showing a scribing apparatus using a scribing head according to a first embodiment of the present invention.

Fig. 4 is a side view showing a schematic configuration in which the permanent magnet of the scribing head according to the first embodiment of the present invention and the rotary shaft are magnetically connected.

Fig. 5 is a side view showing a schematic configuration of a lifting mechanism of a support portion of a scribing head according to Embodiment 1 of the present invention.

Fig. 6 is a side view showing a schematic configuration of a scribing head according to a second embodiment of the present invention.

Fig. 7 is a side view showing a schematic configuration of a scribing head according to a third embodiment of the present invention.

Fig. 8 is a side view showing a schematic configuration of a scribing head according to a fourth embodiment of the present invention.

Fig. 9 is a perspective view of a pressing portion according to a fourth embodiment of the present invention.

Fig. 10 is a perspective view of a pressing portion using a setting screw.

Figure 11 is a side view showing a schematic configuration of a scribing head according to a fifth embodiment of the present invention.

Fig. 12 is a plan view showing a pressing portion according to a fifth embodiment of the present invention.

10. . . Dash head

11. . . Knife wheel

11a. . . blade

12. . . Holder joint

12a. . . Rotary axis

13. . . Holder

13a. . . space

14. . . Permanent magnet (pressing part)

15. . . Support department

15a. . . Screw fixing mechanism

Claims (4)

A scribing head comprising: a cutter wheel pressed against a brittle material to form a scribe groove; the cutter wheel being mounted as a holder joint portion rotatable in a direction of the scribe groove; and being disposed on the brittle material a holder in which the rotation axis of the holder joint portion is substantially rotatably held in a substantially vertical direction; and the slick material is scribing the brittle material, wherein the holder has the aforementioned joint portion of the holder a rotation stopping means for stopping the rotation of the rotary shaft in a desired direction; and a state in which the rotation stop of the rotation axis is stopped by the rotation stop means and a state in which the rotation of the rotation axis is freely performed The rotation switching means for switching between the rotation stop means includes a pressing portion for pressing the rotation shaft of the holder joint portion, and the pressing portion has a hole having a diameter through which the rotation shaft can pass, and a slit provided in a radial direction of the hole from the outer side to the hole; the screwing switching means is a screw that changes the width of the slit, and the screw is used to reduce the width of the slit and the diameter of the hole change And fixing the holder joint portion to the holder, and relaxing the screw to increase the width of the slit and increasing the diameter of the hole, thereby rotating the holder joint portion relative to the holder . For example, the scribing head of claim 1 of the patent scope, wherein the aforementioned spinning stop The stopping means stops the rotation of the rotating shaft by the frictional resistance of the pressing portion and the rotating shaft of the holder joint portion. The scribe head according to the second aspect of the invention, wherein the slewing stop means presses the pressing portion to the rotating shaft of the holder joint portion by mechanical force, thereby rotating the rotating shaft stop. A scribing device having a scribing head according to any one of claims 1 to 3.