JPH05326223A - Breake system of material substrate for electronic component - Google Patents

Abstract

PURPOSE:To suppress breake miss or breakage such as chipping in the end face when a material substrate is divided along a breake line. CONSTITUTION:Members 2, 3 for retaining a material substrate A with respective to a table 1 are arranged above the table 1 for mounting the material substrate A while directing breake lines B3, B4 downward. On the other hand, a reciprocal member is arranged on the sides of the end faces 1a, 1b of the table and rollers 8, 9 are mounted rotatably thereon such that the rollers 8, 9 abut on the top surface of the material substrate A protruding from the table.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for breaking a material substrate used in the manufacture of electronic parts such as chip resistors along break lines formed on the surface of the material substrate. Is.

[0002]

2. Description of the Related Art Conventionally, a break device of this kind has been described in Japanese Patent Application Laid-Open No. 61-99305, which is a prior art. A moving receiving plate is arranged in the same plane as the upper surface of the table, and the material substrate is placed on the upper surface of the table with the break line on the material substrate facing downward and one end surface of the table. Then, the protruding portion of the material substrate from the table is sandwiched between the receiving plate and the pressing piece arranged on the upper surface of the material substrate, and the receiving plate is placed on the upper surface of the material substrate. The material substrate is shaken upward around the axis coincident with an intersection with the vertical line including the break lines to rotate the material substrate along the break lines. It had to be click.

[0003]

However, this conventional break device has the following problems. That is, there is a variation in the thickness dimension of the material substrate, and due to this variation in the thickness dimension, the center of the flip-up rotation of the receiving plate is displaced from the upper surface of the material substrate. Due to the displacement, an unreasonable force is applied to the material substrate by the flip-up rotation of the receiving plate, so that the material substrate breaks at a portion deviating from the break line. Is frequent.

Moreover, the protruding portion of the material substrate from the table is sandwiched between the receiving plate and the pressing piece to bend and break by the flip-up rotation of the receiving plate, and the protruding portion is When bending with the support plate and the pressing piece sandwiched, the break points on the material substrate are pressed against each other by the component force of the bending, so chipping such as chipping occurs on the end surface of the break. It did.

An object of the present invention is to provide a break device which does not cause these problems.

[0006]

In order to achieve this technical object, the present invention is to provide a material substrate on an upper surface of a table on which a material line for breaking in the material substrate is placed downwards. While a pressing member is arranged to press the table against the table, a reciprocating motion is provided on a side of one end face of the table so as to reciprocate between a region higher than the upper face of the table and a region lower than the upper face of the table. A member is provided, and the reciprocating member is rotatably provided with a roller adapted to come into contact with the upper surface of the protruding portion of the material substrate from the table.

[0007]

[Operation] In this configuration, when the material substrate is placed on the upper surface of the table with its break line facing downward, and the line of the break line substantially coincides with one end surface of the table, this material substrate After being pressed against the table by the pressing member, the reciprocating member is moved down from a position higher than the upper surface of the table to a position lower than the upper surface.

Then, the roller provided on the reciprocating member comes into contact with the upper surface of the protruding portion of the material substrate from the one end surface of the table and presses it so as to bend it downward. Is to be broken along the line of break lines that coincides with one end surface of the table. Then, at the time of this break, the roller contacting the upper surface of the protruding portion of the material substrate rotates while contacting the upper surface of the protruding portion while pressing the protruding portion of the material substrate so as to bend downward. It is possible to reliably prevent the component force of the pressing force for bending the protruding portion downward from acting on the break point.

Further, the break is not carried out by the flip-up rotation about the axis coincident with the upper surface of the material substrate as in the conventional case, but is carried out by the downward movement of the reciprocating member. Even if there are variations in the thickness of the substrate, the substrate can be reliably broken along the break lines.

[0010]

As described above, according to the present invention, when the material substrate is broken along the break line, it is possible to surely prevent a break error that the break cannot be made along the break line. This has the effect of being able to reduce the number of chips, and also to reliably reduce the occurrence of chips such as chipping on the broken end face.

[0011]

EXAMPLES Examples of the present invention will be described below with reference to FIG. 1, in which a plurality of vertical stripe lines B ₁ and horizontal stripe lines B ₂ are provided in a grid pattern on the surface to form a chip resistor material substrate A. , The blank portions A provided integrally on the left and right sides of the material substrate A
Drawings (FIGS. 3 and 4) in the case where each of ₁ and A ₂ is applied to break as shown in FIG. 2 along break line lines B ₃ and B ₄ will be described.

In this figure, reference numeral 1 indicates a table on which the material substrates A with both the margins A ₁ and A ₂ are placed, and the width dimension L in the table 1 is defined as the both margins of the material substrate A. By setting the distance dimension S between the break lines B ₃ and B ₄ with respect to A ₁ and A ₂ to be substantially equal to or slightly smaller, the material substrate A
And when loaded with its both break for muscle Looking B _3, B ₄ and upwards, both break for muscle Looking B _3, B ₄ are left and right end faces 1a in table 1, configured to match the 1b or Or, the lines B ₃ and B ₄ for both breaks are
The table 1 is configured to project outward from both the left and right end surfaces 1a and 1b by a slight dimension x.

Further, on the left and right sides above the table 1, vertically movable pressing members 2 and 3 for pressing the material substrate A against the table 1 are arranged.
On the other hand, rotary shafts 4 and 5 adapted to be reciprocally rotated by appropriate means as shown by arrows are provided on the outer sides of both end surfaces 1a and 1b of the table 1, respectively.
Are arranged so as to extend in parallel with both end faces 1a, 1b of each of the rotary shafts 4, 5, and a pair of arm members 6, 7 are fixed to the rotary shafts 4, 5, respectively. Is configured to reciprocate between a portion higher than the upper surface of the table 1 and a portion lower than the upper surface of the table 1 by the rotation of both rotation shafts 4 and 5. At the tip,
Rollers 8 and 9 are provided rotatably so as to contact the upper surfaces of the margins A ₁ and A ₂ of the material substrate A, respectively.

In this structure, on the upper surface of the table 1,
When the material substrate A is placed with its break streak lines B ₃ and B ₄ facing downward and the break streak lines B ₃ and B ₄ are substantially aligned with the left and right end surfaces 1a and 1b of the table 1, When the pressing members 2 and 3 move downward, the left and right sides of the material substrate A are pressed against the table 1.

Then, by rotating the both rotary shafts 4 and 5 inward, the rollers 8 and 9 attached to the tip end portions of the arm members 6 and 7 on the both rotary shafts 4 and 5, respectively. ,
The table 1 descends from a position higher than the upper surface to a position lower than the upper surface, and in the middle of the movement, both margins A ₁ , A on the material substrate A are moved.
And brought into contact with the _second upper surface, to both the margin portions A _1, A _2, from pressing to bend downwards, the two margin A _1, A ₂ is a break for muscle Looking B ₃ for each, It breaks along B ₄ .

At the time of this break, the rollers 8 and 9 which come into contact with the upper surfaces of the blank areas A ₁ and A ₂ of the material substrate A, respectively.
While pressed to bend the both margin A _1, A ₂ of the material substrate A downwardly from rotating while brought into contact with the upper surface of the two margin A _1, A _2, both the margin portions A ₁ , A ₂
It is possible to reliably avoid that the component force of the pressing force for bending downward is applied to the break points of the both break line lines B ₃ and B ₄ .

When the break for one material substrate A is completed in this manner, this material substrate A is placed on the table 1.
After removing the upper surface of the table 1 from the upper surface and rotating both the rotating shafts 4 and 5 back to their original positions, the work of placing the next material substrate A on the upper surface of the table 1 is repeated. In the above-mentioned embodiment, the rollers 8 and 9 are attached to the tip ends of the arm members 6 and 7 fixed to the both rotary shafts 4 and 5, and the rollers 8 and 9 are
Although the case where the two reciprocating shafts 4 and 5 reciprocate is shown, the present invention is not limited to this, and the rollers 8 and 9 are not limited to this.
May be attached to a reciprocating member that reciprocates in other configurations.

Further, in the case of the embodiment, by the variation is present in the spacing dimension S of the two break for muscle Looking B _3, B _4, in Table 1 of both break for muscle Looking B _3, B ₄ Projection dimension x from both left and right end faces 1a, 1b
However, when it did not exceed 0.5 mm, it was possible to surely break along the lines B ₃ and B ₄ for both breaks.

[Brief description of drawings]

FIG. 1 is a perspective view of a material substrate.

FIG. 2 is a perspective view showing a state after breaking the material substrate.

FIG. 3 is a perspective view of an apparatus according to an embodiment of the present invention.

4 is a sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

A material substrate A ₁ , A ₂ margins B ₃ , B ₄ break line 1 table 1a, 1b end face of table 2,3 pressing member 4,5 rotating shaft 6,7 arm member 8,9 roller

Claims (1)

[Claims] 1. A pressing member for pressing the material substrate against the table is disposed above a table on which a material substrate is placed on the upper surface with the breaking lines of the material substrate facing downward. On the other hand, a reciprocating member that is adapted to reciprocate between a portion higher than the upper surface of the table and a portion lower than the upper surface of the table is disposed beside one end surface of the table, and the reciprocating member is provided with the reciprocating member. A break device for a material substrate for electronic parts, characterized in that a roller adapted to come into contact with the upper surface of the protruding portion from the table is rotatably provided.