JPS5917565Y2 - Cutter wheel polishing holder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a holder that polishes and regenerates the rotary blade of a cutter wheel used when cutting, for example, glass, when the rotary blade is worn out and its sharpness has deteriorated.

In general, the sharpening operation of a cutter requires keeping the angle of contact with the abrasive surface strictly constant, and if the cutter is given reciprocating or rotational motion while adhering to this requirement, the intended purpose can be achieved distantly.

As shown in FIG. 1a, the cutter foil to which the present invention is directed, particularly the cutter foil 5 for glass cutting, is particularly compact in shape, with an outer diameter of 3 to 5 mm and an inner diameter d of 0.5 mm. 8 to 1.2 mm, thickness T or 0.7 to 1.
5 mm, and the angle θ of the blade provided on the outer peripheral surface is determined by the thickness of the glass to be cut, and is usually 120 to 140°.

The cutting edge line 5a of the cutter wheel 5 is required to be a straight line when viewed from the front as shown in FIG.

However, conventionally, when regrinding and re-grinding such a small cutter wheel 5, the means for attaching it to the holder is loose, and even if there is a slight distortion or play in the attachment, the cutting edge line 5a will meander as shown in Figure 1. There was a problem that it was polished and could not be sharpened.

Therefore, the polishing precision had to be improved by relying on the skill and skill of skilled workers, which resulted in a lot of effort, time, and expense.

The purpose of the present invention is to improve the above-mentioned defects, and although the attachment and detachment of the cutter foil to the holder is extremely simple, easy and quick, once the attachment is completed, there is no risk of attachment distortion or rattling, and the To create and provide a holder for cutter foil polishing, which can reliably maintain the mounting angle at a constant angle from beginning to end against the pressing force at the time of use, and which can provide extremely smooth and easy mechanical slow rotation to the holder. It is to be.

To summarize the concept of the present invention, a snowball rotatable by a motor is supported in a hole cut in the middle direction of a thick arm, a pin is inserted into the sleeve, and an end surface provided inside the head of the pin is supported. A cutter wheel is sandwiched between the pin and the head end surface of the sleeve, and a nut is engaged with a male thread cut into the tail of the pin and tightened to clamp and fix the cutter wheel.

The structure of the present invention will be explained in detail below with reference to the drawings according to a specific embodiment.

First, FIG. 4 shows a cutter wheel grinder equipped with a holder according to the present invention, in which the center of a disc grinder 6, for example, 60 mm in diameter, to which fine diamond powder is fixed, is directly connected to the output shaft 8 of a motor 7. A mechanism similar to the tool feed of a lathe is installed on the side of the task grinder 6, and a vertical shaft 9 in the mechanism is provided.
A thick arm 10 is attached so as to be swingable in the horizontal direction.

11 is an angle adjustment scale of the arm 10, and 12 is a pointer indicating the degree of angular discoloration of the arm 10.

In FIGS. 2, 3, and 4, 13 is a sleeve, and a bearing 14 is inserted into a widthwise hole cut in the thick arm 10.
It is rotatably supported through.

An end surface 13a of the head portion of the sleeve 13 is formed with a surface perpendicular to the longitudinal direction.

Note that the diameter of the end face of the head is desirably smaller than the outer diameter of the cutter wheel 5 for operational reasons.

Step 13b provided at the head of arm 10 and sleeve 13
A pulley 15 is inserted between the two.

A male thread is formed in the tail of the sleeve 13, and a nut 16 is engaged and tightened to attach the sleeve 13 to the arm 10 so as not to be displaceable in the longitudinal direction.

The pin 17 has a length longer than the sleeve 13 and a diameter that allows it to be inserted into the inner diameter of the sleeve 13, and the inner end surface of the head 17a projects in a direction perpendicular to the longitudinal direction.

A male thread is carved into the tail of the pin 17, and a nut 18 is attached to it.
engage and tighten.

On the other hand, the tip end 10a of the arm 10 has a thinner thickness, and a motor 19 with a reduction gear is fixed there, and a pulley 21 is fixed to its output shaft 20. The belt 22 is passed between the racks and the sleeve 13 is rotated.

The function of the present invention is as follows.

First, in order to attach the cutter wheel 5 whose sharpness has deteriorated to the holder, the nut 18 tightening the tail of the pin 17 is removed, and then the head 17a of the pin 17 is held and the pin 17 is pulled outward. The pin 17 is completely withdrawn from the inner diameter of the sleeve 13.

Therefore, after inserting the inner diameter of the cutter wheel 5 into the pin 17, inserting the pin 17 into the inner diameter of the sleeve 13,
Eventually, the tail of the pin 17 will protrude from the tail end of the sleeve 13, and the nut 18 will be engaged with the tail and tightened.

Then, both side surfaces of the cutter wheel 5 are pressed between the head end surface 13a of the sleeve 13 and the inner end surface of the head 17a of the pin 17, and are fixed by friction.

Thus, by rotating the two motors 7 and 19 and rotating the disc grinder 6 and sleeve 13, the arm 10 is angularly displaced with respect to the shaft 9, and the circumferential surface of the cutter wheel 5 is aligned with the front surface of the disc grinder 6. Press and polish.

Once the cutter wheel 5 has been polished and re-polished, pin 1
At the same time, the nut 18 is removed from the sleeve 13, and the pin 17 is pulled out from the inner diameter of the sleeve 13 to take out the cutter wheel 5.

Since the present invention has the above-described structure and operation, the nut 18 can be rotated by hand and the pin 1 can be rotated from the sleeve 13.
Not only is it possible to attach and detach the cutter wheel 5 to and from the holder extremely simply and easily by simply inserting and removing the cutter wheel 7 and passing the pin 17 through the inner diameter of the cutter wheel 5, but also it is possible to quickly and easily attach and detach the cutter wheel 5 from the holder. Since both sides of the cutter wheel 5 are strongly pressed between the inner end surface of the head 17a of the pin 17 and the head end surface 13a of the snob 13 and fixed by friction, the cutter wheel 5 can be attached to the disc grinder. Even when pressed against the rotating surface of the sleeve 13, the mounting angle can be reliably maintained at a constant angle from beginning to end without causing mounting distortion or play.Furthermore, by transmitting rotational power to the pulley 15 fixed to the sleeve 13, the sleeve 13 The end face of the cutter wheel 5 can be polished uniformly and evenly while being rotated smoothly and easily at a slow speed with respect to the arm 10. In this way, the cutting edge line 5a of the cutter wheel 5 can be polished easily and smoothly by the operator's skill and skill. Now, anyone can simply and easily perform polishing and re-polishing in a straight line as shown in Figure 1a, without relying on mechanical operations.

[Brief explanation of drawings]

FIG. 1 is a front view showing the shape of a cutter wheel to be polished according to the present invention, in which "a" shows a good state of polishing and "b" shows a bad state. FIG. 2 is a partially cross-sectional plan view showing a specific embodiment of the present invention, FIG. 3 is an exploded view of the main parts of the holder shown in FIG. 2, and FIG.
The figure shows a plan view of a cutter wheel polishing machine equipped with a holder according to the present invention. 5...Cutter wheel, 9...Vertical axis, 10...Arm, 13...Sleeve, 13a...Sleeve Head end surface,]
5 and 21...Pulley, 17...Pin, 17a...Pin head, 16 and 18...
...Natsuto, 7 and 19...Motor

Claims (1)

[Claims for Utility Model Registration] 1. It has a thick arm attached so as to be swingable in the horizontal direction with respect to a freely displaceable vertical axis, and a head having an end face perpendicular to the elongated direction. , a sleeve rotatably supported in a widthwise hole cut in the arm; and a pin having a head whose inner end surface protrudes perpendicularly to the longitudinal direction and inserted along the inner diameter of the sleeve. , a motor with a reduction gear for driven rotation of a pulley attached to the tip of the arm and fixed to the sleeve; The cutter wheel is sandwiched between the inner end surface of the pin and the end surface of the head of the sleeve, and a nut is engaged with a male thread carved in the tail of the pin, and the nut is tightened to clamp and fix the cutter wheel. Holder for polishing cutter foil. 2. The holder according to claim 1 of the utility model registration claim, in which the diameter of the head end face of the sleeve is smaller than the outer diameter of the cutter wheel.