JP2923435B2 - Rotary cutter for grooving - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary cutter for grooving used in the wood processing or metal processing industries.

[0002]

2. Description of the Related Art Conventionally used in the wood processing industry, etc.
For example, when processing a vertical finger joint used for vertical joint processing of glued laminated lumber etc., as shown in FIG.
Rotary cutters are known.

[0003] The rotary cutter 40 is a disk-shaped base metal.
After the cutting blade 43 is inserted from the side into the concave groove 42 provided in the 41, and the step 45 of the cutting blade 43 is engaged with the locking receiving portion 44 in the concave groove 42, the cutting is performed by the spring 46. The blade 43 is attached by abutting a pressing member 47 that presses the blade 43 outward, and a plurality of such members are overlapped to correspond to a predetermined finger pitch.

However, in this method, after a plurality of sets are superimposed, a plate or the like is fixed on both sides of the cutting edge so as not to cause a shift or the like. It was extremely difficult.

[0005] Even if the cutting edge is polished when worn or chipped due to use, it is not possible to adjust the protrusion of the blade due to the polishing, so that the cutting performance becomes poor or the cutting becomes impossible. At the time, the cutting blade was replaced with a new one, so-called disposable use.

[0006] Also, since the mounting position of the base metal and the cutting blade may be different for each cutting blade, the uneven blades may cause the mounting position.
The processing accuracy on the workpiece may be reduced.

[0007] The disposable cutting blade described above is not only uneconomical because the replacement of the cutting blade is intense, but the removal and installation of the fine and small cutting blade are extremely troublesome, and require extremely replacement work time. It had a point.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and has a cutting object provided with a cutting edge protruding into a concave groove provided on a peripheral surface of a base metal. A blade holder is attached to the side surface of the body, and fixing means for pressing and fixing the blade object to one side wall of the concave groove is provided on the back of the blade holder, and the blade object has a blade protruding from the blade object. By coordinating the adjusting means to adjust, while polishing the edge of the blade object to measure the reuse of the blade object,
It is an object of the present invention to provide a grooving rotary blade device capable of performing processing on a material with high precision by performing adjustment of blade extension for each blade object.

[0009]

Means of the present invention for achieving the above object are a base metal, a concave groove provided on the periphery of the base metal, and a back side surface of one side wall of the concave groove. And a blade object whose blade edge protrudes from the peripheral surface of the base metal, and a base that is housed in the concave groove and is rotatably mounted on the base with the base mounted on the other side of the base. A blade retainer provided so that a stop projection can be freely contacted and separated about the base, and engages with a locking groove formed in the back of the blade object; and a blade retainer provided on the back of the blade retainer. Fixing means for pressing and fixing the blade object to one side wall of the concave groove, adjusting means for adjusting the protrusion of the blade of the blade object by contacting the bottom of the blade object,
The rotary cutter device for grooving provided with the above.

The blade object has its back side accommodated in a receiving groove formed on one side wall in the concave groove, and the blade object is restricted from moving laterally, and is substantially radially oriented. It is configured to be slidable.

[0011]

[0012]

The present invention configured as described above has the following effects.

The blade holder is housed in the concave groove of the base metal, and a blade object is inserted between one side wall of the concave groove and the pressing surface side of the blade holder. The back is held down to temporarily hold the blade holder, that is, the blade object.

In this state, when the adjusting means linked to the blade object is operated, the blade object is arbitrarily put in and out, and the predetermined blade is adjusted with respect to the peripheral side of the base metal.

Next, when the back of the blade holder is pressed by operating the fixing means, the blade object is pressed against one side wall of the base metal and is firmly fixed.

Thus, even if the base metal rotates at high speed, the centrifugal force prevents the blade object from jumping out of the base metal and causing no harm to nearby equipment and workers.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a rotary cutting device for grooving according to the present invention will be described with reference to the drawings.

In FIGS. 1 to 3 and FIGS. 5 to 10, A is a rotary cutting device for grooving. , Vertical finger joint b.

A first embodiment is shown in FIGS. 1 to 3 and includes a base 1, a concave groove 2, a blade object 3, a blade holder 4, a fixing means 5, and an adjusting means 6. It is basically composed of

In addition, the apparatus A can of course perform narrow groove cutting and the like in addition to the above-described finger joint processing.

The base metal 1 is formed of a steel material or the like in the shape of a disk having a predetermined thickness, and has a mounting hole 7 formed at the center thereof for mounting to a rotating spindle (not shown) of a cutting machine. It is.

The above-mentioned concave groove 2 is provided at a plurality of locations, for example, two locations (there may be two or more locations) on the peripheral surface of the base metal 1.
It is provided.

The above-mentioned blade body 3 has its back side surface in contact with one side wall of the concave groove 2 to protrude the blade edge 8 from the peripheral surface of the base metal 1. The blade edge 8 is provided at both ends. Thereby, the cutting life per single blade object 3 is improved.

The blade body 3 is formed with a triangular engaging portion 9 having a sharp contact surface, and the engaging portion 9 is formed in a base metal 1 by V, U, or square. The engagement with the groove 10 and the like suppresses lateral movement and protrusion, but is slidable substantially in the radial direction.

The above-described blade holder 4 is used to hold the blade object 3 in the concave groove 2.
Is pressed into one side wall and fixed to the base 1, and is housed in the concave groove 2, and the circular base 11 is attached to the base 1.
In the receiving groove 12 provided on the bottom side of the concave groove 2, it is rotatably attached to the back side of the blade object 3 and is attached to the side surface of the blade object 3.

The engaging projections 13 protruding from the corresponding surface on the back side of the blade body 3 are engaged with the locking grooves 14 engraved on the back side of the blade body 3, so that the two 3 and 4 are integrally formed. As a result, movement in a substantially radial direction is suppressed.

The blade holder 4 can be rotated by inserting a tool or the like into a hook portion 15 provided at the center of the base 11 and rotating the blade holder 3 so that the blade object 3 can be moved toward and away from the blade body 3.

As shown in FIG. 2, the engagement between the locking projection 13 and the locking groove 14 is such that the locking projection 13 is
It is preferable that the back portion of the blade object 3 is formed in a gentle arc shape and is pressed by three-point contact with two points on both sides of the blade object 3. More preferred.

The fixing means 5 is provided at the back of the blade holder 4 to press and fix the blade body 3 against one side wall of the concave groove 2. The fixing annular groove 16 provided on one side of the concave groove 2 is provided. A circular fixed holding body 17 having a part of its circumference cut away is inserted thereinto, and a tool or the like is hooked into a hooking part 18 provided in the center and turned to obtain the cutout part. Act as a cam to generate a pressing force on the blade presser 4, that is, the blade object 3.

By caulking a plurality of locations on the outer peripheral portion of the fixed holding member 17, rotation of the fixed holding member 17 can be suppressed.

The adjusting means 6 adjusts the protruding edge of the cutting edge 8 of the blade object 3 in association with the blade object 3, and is provided on the bottom side of the blade object 3 in a substantially radial direction. A circular adjustment holding body 20 having a cam portion by cutting out a part of the circumference thereof is inserted into the annular groove 19, and a tool or the like is hooked into a hooking portion 21 provided at the center and turned. As a result, the notch serves as a cam to feed the blade object 3 in the circumferential direction of the base metal 1.

The adjusting means 6 is formed by caulking 22 at a plurality of locations on the outer peripheral portion of the adjusting presser body 20.
Since the rotation of the adjustment presser body 20 is suppressed, the inward movement of the blade object 3 in the substantially radial direction can be suppressed.

As shown in FIG. 4, the device A of the first embodiment of the present invention configured as described above uses seven to eight sets in a superposed manner when seven fingers are provided. First, the blade holder 4 is inserted into the receiving groove 12 of the concave groove 2 in the base metal 1.
The base 11 is inserted, and one side wall of the concave groove 2 and the blade holder 4
The engaging groove 14 of the blade body 3 and the locking projection 13 of the blade holder 4 are engaged with the pressing surface side of the blade body 3, and the blade body 3 is inserted.

At this time, the locking portion 9 of the blade object 3 is inserted into the V-shaped groove 10 of the base metal 1 and does not move laterally.

The fixing means 5 is pressed by the fixing means 5 provided on the back of the blade presser 4. First, when the fixing presser 17 fitted in the fixing annular groove 16 is rotated by the hook 18, the fixing is performed. Since the cam portion of the presser body 17 comes into contact with the back of the blade presser 4, when the fixed presser body 17 is further rotated, the blade object 3 is temporarily fixed to the base 1.

In this state, when the adjusting presser body 20 of the adjusting means 6 is rotated by the hook portion 21 for a predetermined time, the blade object 3 is fed out by the cam portion, and the predetermined blade is Is adjusted.

The fixing presser 17 in the fixing means 5
The blade body 3 is pressed against one side wall of the base metal 1 by firmly attaching the blade body 3 by pressing the back of the blade holder 4 with the cam portion. When the caulking 22 is performed, the adjustment presser body 20 does not move while cutting.

If the adjusting presser 20 is formed from a rigid and springy material as shown in FIG. 6, the purpose of preventing the adjustment presser 20 from loosening can be achieved without caulking 22. Is done.

Next, a second embodiment of the apparatus A according to the present invention
Will be described based on FIG. 5 and FIG.

The apparatus A includes a base 1, a concave groove 2 provided in a peripheral portion of the base 1, and a back surface thereof abutting against one side wall of the concave groove 2, so that the cutting edge 8 is attached to the base 1. 1 and a fixing means 5 provided on the back of the blade object 3 for pressing the blade object 3 against one side wall of the concave groove 2 to fix the blade object 3 to one side wall of the concave groove 2.
And adjusting means 6 for adjusting the protrusion of the blade of the blade object 3 in association with the blade object 3.

Therefore, the blade body 3 pressed against one side wall of the base 1 is directly operated by the fixing means 5, and the other members are substantially the same as those of the first embodiment. Since they are the same, the same reference numerals are given to the corresponding members, and the detailed description is omitted.

Then, the cam portion of the fixed holding member 17 which is fitted in the fixed annular groove 16 as the fixing means 5 and is rotatable is engaged with the arc-shaped groove 23 engraved on the back of the blade object 3. When the cam portion presses the surface of the arc-shaped groove 23, the force is transmitted to the entire blade body 3 and pressed against one side wall of the base metal 1 to be fixed.

The blade object 3 abutting on one side wall of the base 1
As shown in FIG. 5, the abutting surface is an arcuate surface that curves outward, so that the surface makes point contact, and the blade object 3 is securely fixed.

In the case where the fixed presser body 17 of the fixing means 5 is rotated in the tightening direction, the blade object 3 which comes into contact with the fixing presser body 17 sometimes moves so as to protrude outward as shown in FIG. In addition, by providing the fixing pin 25 on the contact surface between the side wall of the base metal 1 and the back of the blade object 3 in the concave groove 2, the protrusion can be prevented, and the fixing pin 25 has a spring property. The effect is further improved.

FIGS. 8 and 9 show a rotary cutter device for grooving according to a third embodiment.
, The blade object 3, the blade holder 4, the fixing means 5, and the adjusting means 6.

The blade body 3 accommodated in the concave groove 2 of the base metal 1 is provided with cutting edges 8, 8 at both ends in the longitudinal direction, as shown in an enlarged view in FIG. A receiving groove 10 which engages with and abuts on a locking portion 9 formed on one side wall of the concave groove 2 of the base metal 1 is provided to suppress lateral movement and jumping out. Is slidable.

Further, a pair of receiving recesses 30 with which the blade presser 4 described later is engaged are provided on the front side of the blade body 3.

The blade holder 4 has a forked end 31, 31 formed of a material such as metal, which is fitted into the receiving recess 30 of the blade body 3 and is attached to the front side of the blade body 3.

The fixing means 5 is provided on the back of the blade retainer 4 and presses the blade object 3 against one side wall of the concave groove 2 to fix the same. The fixed annular groove 16 provided on one side of the concave groove 2 is provided. , An eccentric circular fixed holding body 17 in which a part of the circumference is cut out is inserted and fitted, and a tool or the like is hooked into a hooking portion 18 provided in the center portion and turned, whereby the above-described notch is formed. The portion acts as a cam to generate a pressing force on the blade presser 4, that is, the blade object 3.

The adjusting means 6 adjusts the protruding edge of the cutting edge 8 of the blade object 3 in association with the blade object 3. The adjusting means 6 is provided on the rear side of the blade object 3 at an intermediate portion thereof. A circular adjustment presser 20 having an eccentric cam portion formed by cutting out a part of the circumference of the groove 19 is inserted into the groove 19, and is inserted into an arcuate recess 32 provided around the back of the blade object 3. A part of the adjustment presser 20 is engaged.

The eccentric cam feeds the blade object 3 in the circumferential direction of the base metal 1 by inserting a tool or the like into the hanging portion 21 provided at the center and turning the tool.

In FIG. 10, A shows a modification of the second or third embodiment described above.
And the fixing means 5 and the adjusting means 6. The feature is that the blade presser 4 is omitted and the fixing presser 17 of the fixing means 5 is directly moved to the surface side of the blade object 3. The adjusting means 6 is provided on the rear side of the blade object 3 at an intermediate portion thereof.

In other words, the adjusting means 6 adjusts the circular shape of the eccentric cam portion by cutting out a part of the circumference of the adjusting annular groove 19 provided at the intermediate portion on the back side of the blade object 3. The presser body 20 is inserted, and a part of the adjustment presser body 20 is engaged with an arcuate concave portion 32 provided on the back of the blade object 3.

[0054]

According to the present invention constructed as described above, the blade extension can be adjusted by the adjusting means after the blade edge is polished due to wear or chipping caused by use, so that the life of the blade object is reduced. It is economical because it can be used effectively, and even if the accuracy of the mounting position of the base metal and the blade object varies, the blade extension of each blade object can be adjusted in advance. In addition, high quality and high precision processing can be performed on the material.

In addition, since the number of operations for removing and attaching the blade object is reduced as compared with the disposable blade object, the troublesome work is reduced, and the time spent for the replacement operation is reduced as much as possible. Efficient machining operations can be performed. And the like.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a rotary cutting device for grooving according to the present invention.

FIG. 2 is an enlarged front view showing a main part in FIG. 1;

FIG. 3 is a side view in which a part of FIG. 2 is broken.

FIG. 4 is a perspective view showing a material processed by the rotary cutting device for grooving according to the present invention.

FIG. 5 is an enlarged front view showing a main part of a rotary knife device for grooving according to a second embodiment of the present invention.

FIG. 6 is an enlarged front view of a main part showing another example of the adjusting means of the rotary blade device for grooving according to the present invention.

FIG. 7 is an enlarged front view of a main part showing a fixing pin of the blade object.

FIG. 8 is a front view showing a third embodiment of the rotary cutting device for grooving according to the present invention.

FIG. 9 is an enlarged front view of a main part in FIG. 8;

FIG. 10 is an enlarged front view of a main part showing still another example of the grooving rotary blade device according to the present invention.

FIG. 11 is a perspective view showing another example of the blade object.

FIG. 12 is an enlarged front view showing a main part of a conventional blade device.

[Explanation of symbols]

 Reference Signs List 1 base metal 2 concave groove 3 blade object 4 blade holder 5 fixing means 6 adjusting means 8 blade 11 base

Claims (2)

(57) [Claims] 1. A base metal, a concave groove provided in a peripheral part of the base metal, and a blade having a back side abutting against one side wall of the concave groove to protrude a cutting edge from a peripheral surface part of the base metal. Body, a base housed in the concave groove is rotatably mounted on the base, and a locking projection extending to the other side of the base is freely movable around the base, and A blade retainer attached to engage with a locking groove formed in the back of the blade object, and fixing means provided on the back of the blade retainer to press and fix the blade object against one side wall of the concave groove. Adjusting means for abutting against the bottom of the blade object to adjust the protrusion of the blade of the blade object. 2. The blade object has a back surface housed in a receiving groove formed on one side wall in the concave groove, and the blade object is restricted from moving laterally, and is substantially radially oriented. The rotary blade device for grooving according to claim 1, wherein the rotary blade device is configured to be slidable.