JPH024099Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The invention relates to a breaking device that scribes the outer peripheral surface of glass, etc. with a tool such as a cutter, and then applies pressure to the scribed portion to break and remove it. .

(b) Prior Art As shown in the front and plan views of FIGS. 5 and 6, the conventional breaking device uses a glass clamped and fixed between a workpiece holder 1 and a workpiece holder 2. A break actuator 5 applies pressure to a broken part 3 of a workpiece W such as a plate along a scribe line 4 formed on the surface of the workpiece W to break the broken part 3.
was broken.

(c) Problems to be Solved by the Invention In the conventional example described above, extremely large force was required because pressure had to be applied to the entire breaking portion 3 of the workpiece W along the scribe line 4 to break it. If the breakage were to break all at once due to such a large force, the condition of the break surface would deteriorate, and large chips would occur, especially on the bottom surface.

The present invention is intended to solve these problems.

(d) Means for solving the problem The present invention includes a tension actuator,
This tension actuator applies a weak pressure to the broken part of the work along the scribe line in advance to keep the scribe line under tension. The problems of the conventional example described above are solved by applying pressure and breaking.

(e) Examples Examples of the present invention will be described below based on the drawings.

FIG. 1 is a front view showing essential parts of an embodiment of the present invention, and FIG. 2 is a plan view thereof. Note that the same parts as those in FIG. 5 are given the same reference numerals.

In this embodiment, a tension actuator 6 is provided that applies pressure to the entire fracture portion 3 along the scribe line 4 formed on the surface of the workpiece W. The tension actuator 6 applies tension to the scribe line 4 by applying pressure with a maximum shearing force that does not cause the breakage portion 3 of the workpiece W to break or with a force less than that.

The break actuator 7 is provided at the end of the broken part 3 of the workpiece W and at a position corresponding to the end of the scribe line 4, and acts on the broken part 3 where pressure is applied along the scribe line 4. The breaking portion 3 is broken by applying further pressure to the scribe end 3a.

Since the scribe line 4 is tensioned in advance, the scribe line 4 of the workpiece W to be broken by the apparatus of this embodiment has a tension applied thereto, so that the scribe line 3 can be broken by simply pressing the scribe end 3a at the end of the break part 3 with a weak force. 3
It is smoothly broken along the scribe line 4 starting from point a.

FIG. 3 is a front view showing another embodiment of the present invention, and FIG. 4 is a side view thereof. Note that the same parts as those in FIG. 1 are given the same reference numerals.

In this embodiment, the broken part 3 of the workpiece W is pressed along the scribe line 4 so that it can be twisted by a tension actuator 8 pivoted on a main slide 9 that is movable up and down. I'm putting tension on it.

Further, the break actuator 10 in this embodiment is attached to the main slide 9,
Press the end of the tension actuator 8 to rotate the tension actuator 8 and release the workpiece W.
It works to add a twist to the.

That is, the tension actuator 8 applies pressure evenly along the scribe line 4 to the broken part 3 of the workpiece W, so that the scribe line 4 is under tension, and then the break actuator 10 is activated. Tension actuator 8
Rotate the scribe end 3a at the end of the broken part 3.
The breaking portions 3 are sequentially broken from the scribe end 3a side by applying further force to the scribe end 3a.

(f) Effects of the invention According to the invention, there is no sudden large force applied to the workpiece, and the workpiece is not broken by bending force but by shearing force, so there is no chipping on the bottom side of the workpiece. can eliminate the occurrence of

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
The figures are a plan view of the embodiment shown in Fig. 1, Fig. 3 is a front view showing another embodiment of the present invention, Fig. 4 is a side view of the embodiment shown in Fig. 3, and Figs. The figures are a front view and a plan view showing a conventional breaking device. 1... Work holder, 2... Work receiving jig, 3
...Broken portion, 4...Scribe line, 6,8...Tension actuator, 7,10...Break actuator, 9...Main slide, W...Work.

Claims (1)

[Scope of utility model registration request] A breaking device that breaks a workpiece such as glass along a scribe line formed on the surface thereof includes a tension actuator that presses a broken part of the fixed workpiece along the scribe line; A breaking device comprising: a break actuator that applies further pressure to the end of the breaking portion of the workpiece that is being pressurized by the yuator to break the breaking portion.