JP2003340793A - Board dividing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a board dividing apparatus capable of vertically and sharply dividing a board along a cutting line without breaking and cracking. <P>SOLUTION: The board dividing apparatus comprises a dividing force giving member 23 for giving a dividing force to the entire width of the board 33, a guiding plate 29 for guiding the board to the dividing force giving member and having a bearing part 31 for supporting the board along the cutting line S when the board is divided, a stopper member 25 for restricting the position of the board so that the cutting line matches with the bearing part when the board is guided, and a pressing member 27 for cooperating with the guiding plate, pressing the entire width of the board and having a pressing end 41 located along the cutting line when the board is divided. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate dividing device for dividing a substrate having a dividing line in advance into a predetermined size along the dividing line.

[0002]

2. Description of the Related Art Conventionally, there is a substrate dividing device for dividing a ceramic substrate having a dividing line along each dividing line to obtain a plate-shaped component for ceramic electronic components.
For example, one of them is disclosed in Japanese Patent Laid-Open No. 5-124031. As shown in FIG. 6, this substrate dividing apparatus includes a pair of master-side conveyance guides 1 extending in parallel, and a ceramic substrate 2 to be divided is slidably placed on the conveyance guide 1. . A stopper 3 for restricting the amount of slide of the substrate 2 is provided on the downstream side of the transport guide 1. In addition, the stopper 3
A master-side chuck 4 and a module-side chuck 5 are provided on the upstream side of. A dividing line S formed of a groove is formed in advance on the substrate 2 so as to promote the division into a predetermined size.

In such a substrate dividing apparatus, first, the substrate 2 is slid until it abuts on the stopper 3, whereby the predetermined dividing line S of the substrate 2 is moved to the master side chuck 4.
And between the module-side chucks 5. In that state, by closing both chucks 4 and 5, the substrate 2 is sandwiched and fixed from above and below. Further, by swinging the master side chuck 4 and the module side chuck 5 in mutually opposite directions, both chucks 4 and 5 on the substrate 2 are moved.
The dividing force is applied to the portion between the two, and the dividing force is concentrated on the dividing line S to divide the substrate 2.

[0004]

However, in the above-described conventional substrate dividing apparatus, the master-side chuck 4 and the module-side chuck 5 each hold only the outer end in the width direction of the substrate 2, so that the division is not always performed. The force does not always act on the dividing line S of the substrate 2 uniformly. For this reason, the substrate 2 may not be accurately cracked along the dividing line S, and may be cracked or cracked, or may be split between the upper surface and the lower surface of the substrate 2 obliquely without being vertically cracked.

Therefore, the present invention has been made in view of the above conventional problems, and provides a substrate dividing device capable of vertically dividing a substrate along a dividing line without causing cracks or cracks. The purpose is to do.

[0006]

In order to achieve the above-mentioned object, the present invention provides a substrate dividing apparatus for dividing a substrate having at least one dividing line along the dividing line, wherein the substrate has a full width. A dividing force giving member for giving a dividing force, and guiding the substrate toward the dividing force giving member,
A guide plate having a fulcrum portion for supporting the substrate along the dividing line at the time of division, and a stopper member for defining the position of the substrate so that the dividing line and the fulcrum portion are aligned when guiding the substrate. And a pressing member that cooperates with the guide plate to press the substrate over its entire width and that has a pressing end portion that is located along the dividing line at the time of division.

Preferably, the dividing force applying member and the stopper member apply a dividing force to the substrate by integrally swinging while being in contact with the surface of the substrate and the front end face in the guide direction. Further, preferably, the stopper member has a relief surface that promotes discharge of the divided substrate portion on the side facing the front end surface in the guide direction and on the swinging direction side during division. Furthermore, it is preferable that the dividing force applying member and the stopper member can be changed in position in a direction perpendicular to and parallel to the guiding direction of the substrate.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A substrate dividing apparatus according to an embodiment of the present invention will be described below with reference to the accompanying drawings. Figure 1
An outline of the substrate dividing device is shown in FIG. The board dividing device 11
A fixed base 13 provided on the lower part of the apparatus and a housing 15 provided on the fixed base 13 are provided. The upper portion of the fixed base 13 is inclined from the horizontal direction, whereby the housing 1
5 is supported in a state of being inclined with respect to the horizontal direction.

In the housing 15, an electric motor 17, which is a means for generating a driving force, an action portion 19 including various movable parts for holding and dividing the substrate, and a drive of the electric motor 17 are mainly provided. A timing control unit 21 that transmits the force to the action unit 19 at a predetermined timing is provided.

Next, the details of the operating portion 19 will be described with reference to FIGS. 1, 2 and 3. The acting portion 19 includes a dividing force applying member 23 for applying a dividing force to the substrate, a stopper member 25 for defining the position of the substrate, a holding member 27 for fixing the substrate at a predetermined position during division, and a substrate And a guide plate 29 for guiding and supplying the splitting force applying member 23. The guide plate 29 is a plate-shaped member, and has a guide groove 29b extending in the longitudinal direction at the center portion on the front surface 29a side. The guide groove 29b has the same width as the substrate 33 so that the substrate 33 can be accommodated therein. Further, the guide plate 29 is fixed to the housing 15 in a posture inclined from the horizontal direction. As a result, the substrate 33 slides downward along the guide groove 29b of the guide plate 29 by its own weight.
A lower side portion of the guide plate 29 on the front surface 29a side functions as a fulcrum portion 31 that supports a portion of the dividing line S on the substrate 33 at the time of division, as described later.

The stopper member 25 is disposed on the downstream side of the guide plate 29, and the substrate 3 guided by the guide plate 29.
3 has a stopper surface 25a which comes into substantially surface contact with the lower end surface (front end surface in the guiding direction) 33a. The contact state between the stopper surface 25a and the lower end surface 33a of the substrate 33 is determined by the stopper surface 2
The entire 5a is set so as to contact a part of the lower end surface 33a of the substrate 33. Further, on the back surface 25b side of the stopper member 25 (the swinging direction side at the time of division) and on the substrate 3
An escape surface 25c is formed on the side of the lower surface 3 that faces the lower end surface 33a. The relief surface 25c is the stopper surface 25a.
And the back surface 25b, and is inclined at a predetermined angle with respect to the stopper surface 25a. The escape surface 25c promotes the falling of the divided board portion, and a slope-like board slider 35 (see FIG. 1) for guiding the falling board portion along a predetermined route is arranged substantially below the escape surface 25c. It is set up. Stopper surface 2 of stopper member 25
A split pitch adjusting handle 37 is connected to the side opposite to 5a. By rotating this handle 37 as shown by an arrow A in FIG.
5 can move in a direction parallel to the extension direction of the guide plate 29, that is, the guide direction of the substrate 33, as indicated by arrow B.

The dividing force applying member 23 has an acting surface 23a.
Are arranged so as to face a portion of the surface 33b of the substrate 33 on the downstream side of the fulcrum portion 31. Further, in the present embodiment, the width of the dividing force applying member 23 is about 1.5 times the width of the substrate 33 so as to cover the substrate 33 over the entire width thereof. Thereby, the dividing force application member 23
The dividing force can be uniformly applied along the dividing line S of the substrate 33 in cooperation with a pressing member 27, which will be described later, and it is possible to prevent stress from concentrating only on a part of the substrate 33 and generate cracks or cracks. By avoiding the above, the substrate 33 is vertically divided from the upper surface to the lower surface. The width of the dividing force applying member 23 is not limited to about 1.5 times the width of the substrate 33, and it can be in contact with the substrate 33 so as to cover the entire width of the substrate 33. Other dimensions may be used, for example, the width may be the same as that of the substrate 33. Further, a thickness adjusting handle 39 is connected to the side of the dividing force applying member 23 opposite to the acting surface 23a. By rotating this handle 39, as shown by arrow C,
The dividing force applying member 23 can move in a direction perpendicular to the guiding direction of the substrate, as shown by an arrow D. Further, the dividing force applying member 23 is supported so as to swing integrally (at the same angular velocity) with the stopper member 25, as shown by an arrow E. This swinging operation is performed by the driving force of the electric motor 17 with the fulcrum portion 31 as the central axis in the present embodiment.
Done.

The pressing member 27 is arranged upstream of the dividing force applying member 23. The pressing surface 27a of the pressing member 27 is
It extends parallel to the surface 29a of the guide plate 29. Further, as shown in FIG. 3, the width of the pressing member 27 is set to be substantially the same as the width of the substrate 33, whereby the pressing member 27 presses the substrate 33 so as to cover the entire width thereof. . The lower side portion of the pressing surface 27a is located on an imaginary plane V (see FIG. 2) that extends perpendicularly to the surface 29a from the fulcrum portion 31 of the guide plate 29, that is, the dividing line on the substrate 33 at the time of division as described later. It functions as a presser end portion 41 located along S. The pressing member 27 is always urged by an elastic member (not shown) in the direction of arrow R in FIG. 2, that is, toward the guide plate 29, and when the substrate is released, the pressing member 27 is elastic by the action of the electric motor 17 and the timing control unit 21. In the direction of arrow U against the force, that is, the guide plate 2
It is pulled up in the direction away from 9. Further, a pressing force adjusting handle 43 is connected to the pressing member 27 on the side opposite to the pressing surface 27a. By rotating the handle 43 as shown by the arrow F, the pressing member 27 can move in the direction perpendicular to the guiding direction of the substrate as shown by the arrow G. The position of the pressing member 27 adjusted by the handle 43 is the position where the pressing member 27 can be separated most from the guide surface 29a against the elastic force, and the elastic force acting on the pressing member 27, that is, the pressing force, is adjusted by this adjustment. Can be set.

The timing control unit 21 has a plurality of cam members and link members in this embodiment, and the driving force of the electric motor 17 is applied to the action unit 19 at a predetermined timing.
Of the pressing force of the pressing member 27, the dividing force applying member 23 and the stopper member 2
Various operations such as rocking / splitting of 5 are realized.

Next, the operation of the substrate dividing apparatus configured as described above will be described. Guide groove 29b of the guide plate 29
The substrate 33 is set on. At this time, the pressing member 27 is pulled up to a release position where it can be separated from the surface of the substrate 33. Therefore, the base plate 33 slides downward by its own weight due to the inclination of the guide plate 29, and the lower end surface 3 of the base plate 33.
When 3a abuts the stopper surface 25a of the stopper member 25, the sliding of the substrate 33 stops. In the present embodiment, a weight (not shown) acts on the upper end surface of the substrate 33 in order to ensure the movement of the substrate 33 to the action portion 19.

After the substrate 33 is set on the guide plate 29 or before the setting, the positions of the stopper member 25 and the dividing force applying member 23 are adjusted. That is,
The handle 37 is operated to adjust the division pitch so that the distance H between the fulcrum portion 31 and the stopper surface 25a in the guide direction becomes equal to the distance between the adjacent division lines S on the substrate 33. Further, the handle 39 is operated to adjust the distance between the surface 29a of the guide plate 29 and the acting surface 23a of the splitting force imparting member 23 according to the thickness of the substrate 33 to be split. By such adjustment, the lower end surface 33a of the substrate 33 is moved to the stopper surface 2
The fulcrum portion 31 of the guide plate 29 overlaps the dividing line S of the substrate 33 in the state of being in contact with the 5a. Further, if necessary, the handle 45 is rotated at an appropriate time to hold down the pressing member 2.
The opening amount of 7 is adjusted in advance so that the pressing force described later is in an optimum state.

After the above various adjustments and the setting of the substrate are completed, the following division operation is performed. When a division switch (not shown) is turned on, the driving force of the electric motor 17 acts via the timing control section 21, and as shown in FIG. 4A, the pressing member 27 is pressed by the elastic force to cause the substrate 3 to move.
Hold down 3. Further, the driving force of the electric motor 17 is transmitted to the splitting force imparting member 23 and the stopper member 25 later than the pressing process by the timing control action of the timing control unit 21. As a result, in the state where the substrate 33 is pressed by the pressing member 27, the dividing force applying member 23 and the stopper member 25 swing around the fulcrum portion 31 as indicated by the symbol E in FIG. 4B. The substrate 33 is divided along the dividing line S. Further, in the present embodiment, the fulcrum portion 31 of the guide plate 29 and the holding end portion 41 of the holding member 27 are provided.
Are aligned with the dividing line S, and the pressing member 2
While 7 holds the substrate 33 over its entire width,
The dividing force applying unit 23 extending at least over the entire width of the substrate 33 applies the dividing force to the substrate 33. For this reason, the dividing force acts accurately and uniformly along the dividing line S, and the substrate 33 is divided along the dividing line S in a straight and accurate manner as compared with the conventional case, and cracks and cracks do not occur. Further, the divided surface also has a clean finish from the upper surface to the lower surface of the substrate 33 without vertical cracks or oblique cracks. Further, since the member for applying the dividing force is provided only on one surface side of the substrate 33, the dividing force applying member 23 is used for the pressing end portion 41 of the pressing member 27 in other words while adopting the dividing mode by swinging. For example, it is possible to adopt a configuration in which it is closer to the dividing line S, and such an arrangement also facilitates the effect of dividing the substrate 33 along the dividing line S in a straight and accurate manner.

Subsequently, as shown by an arrow J in FIG. 4C, the dividing force applying member 23 and the stopper member 25 swing in the opposite directions to return to the original state, and at the same time, the divided substrate. The part 133 falls by its own weight. At this time, there is a relief surface 25c in which the stopper surface 25a of the stopper member 25 is in contact with a part of the lower end surface 33a of the substrate portion 133 and is inclined in the direction opposite to the returning direction (J direction) of the stopper member 25. Therefore, the substrate portion 133 is efficiently detached / discharged from the dividing force applying member 23 and the stopper member 25, and falls. The dropped substrate portion 133 is guided and collected at a predetermined position by the substrate slider 35.

Subsequently, as shown by the arrow U in FIG. 5A, the pressing member 27 moves in the releasing direction away from the substrate 33, whereby the substrate 33 is moved by its own weight and the weight to the arrow K. The guide plate 29 is slid downward as shown in FIG. Then, as indicated by an arrow R in FIG. 5B, the holding member 27 moves in the holding direction at a timing after the board 33 contacts the stopper member 25. Thereby, as shown in FIG. 5C, the dividing line S is aligned with the fulcrum portion 31 and the pressing end portion 41 as in the previous step, and the substrate 33 is pressed by the pressing member 27 in this state. further,
After that, similarly, a dividing force is applied to the substrate 33 to perform the division, and thereafter, the substrate is similarly divided for each dividing line S. The operation and timing of the pressing member 27 and the operation and timing of the dividing force applying member 23 are all controlled automatically by the timing controller 21. For this reason, the user does not need to perform extra work such as inserting and removing the stopper at every substrate feed timing, only by turning on the division switch, and the substrates are automatically divided one after another. . 4 and 5 are schematic diagrams in which the tilted state and the structure are simplified, giving priority to the clarity of the description of the dividing operation.

[0020]

As described above, according to the substrate dividing apparatus of the present invention, the fulcrum portion of the guide plate and the pressing end portion of the pressing member are aligned with the dividing line and the pressing member holds the entire width of the substrate. Since the dividing force is applied uniformly over the entire width of the board, there is no occurrence of cracks or cracks, and the dividing surface is also cracked vertically from the top surface to the bottom surface of the board, without causing damage to the board. You can split it more neatly along.

[Brief description of drawings]

FIG. 1 is a diagram showing an outline of a substrate dividing apparatus according to the present invention.

FIG. 2 is an enlarged view of the vicinity of a working portion in the substrate dividing apparatus of the present invention.

FIG. 3 is a view of a guide plate, a pressing member, and a substrate in the substrate dividing device according to the present invention as seen obliquely from above.

FIG. 4 is a diagram schematically showing an operation in the substrate dividing apparatus of the present invention.

FIG. 5 is a diagram schematically showing the operation of the substrate dividing apparatus of the present invention.

FIG. 6 is a perspective view showing a main part of a conventional board dividing device.

[Explanation of symbols]

11 ... Substrate dividing device, 23 ... Dividing force applying member, 25 ... Stopper member, 25c ... Relief surface, 27 ... Holding member, 29
... guide plate, 31 ... fulcrum portion, 33 ... substrate, 41 ... presser end portion, S ... dividing line.

Claims (4)

[Claims] 1. A substrate dividing apparatus for dividing a substrate having at least one dividing line along the dividing line, a dividing force applying member for giving a dividing force to the substrate over its entire width, and the dividing force. A guide plate having a fulcrum portion for guiding the substrate toward the applying member and supporting the substrate along the dividing line at the time of division; and the dividing line and the fulcrum portion at the time of guiding the substrate. A stopper member that defines the position of the substrate, and a pressing member that cooperates with the guide plate to press the substrate over its entire width and that has a pressing end portion that is located along the dividing line when divided. And a substrate dividing device. 2. The dividing force applying member and the stopper member apply a dividing force to the substrate by integrally swinging in a state of being in contact with the surface of the substrate and the front end face in the guiding direction. The substrate dividing apparatus according to claim 1. 3. The stopper member has a relief surface for promoting discharge of the divided substrate portion on a side facing the guide direction front end surface and on a swinging direction side during division. Item 3. The substrate dividing apparatus according to item 2. 4. The position of each of the dividing force applying member and the stopper member can be changed in a direction perpendicular to and parallel to the guiding direction of the substrate, according to any one of claims 1 to 3. Board dividing device.