JPH05261704A - Cutter and machine tool equipped therewith - Google Patents

Abstract

PURPOSE:To provide a cutter for fluting capable of keeping the cutting sharpness of edge surface thereof for a long time, easy to grind and easy to treat cut refuse. CONSTITUTION:A cutter 50 is constituted by combining a pair of cutter members 10, 20 formed by respectively bonding many edge members 12, 22 to base stands 11, 21. The edge members 12, 22 each having a part of the side surface of a cone as a constitutional surface are equipped with first edge surfaces 12a, 22a whose rotary loci are allowed to almost coincide with each other and second edge surfaces 12b, 22b set to an angle of about 45 deg. with respect to the edge surface 12a, 22a. The edge members 12, 22 of the cutter 50 rotated in the direction shown by an arrow are alternately cut in the cardboard material or wood plate material fed in the cutter in oblique left and right directions at a specified depth to achieve V-fluting. By this constitution, the cutting sharpness the cutter 50 consisting of the edge members 12, 22 can be kept for a long time and, when the cutter members 10, 20 are detached, the edge surfaces are easily ground. Since the cut refuse from the cutter 50 is fine, the dust collection becomes easy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter for making a notch or a groove on the surface of a flat plate material such as a cardboard material or wood to construct a structure such as a box.

[0002]

2. Description of the Related Art Conventionally, in the case of manufacturing a structure such as a box by bending a work which is a flat plate material such as a cardboard material or thin wood,
There is a method of making a fold with a press and utilizing the fold to achieve folding. In addition to such a bending method using a press, a method is known in which, for example, a V groove having an angle of 90 ° is formed on the work, and a right angle bending is achieved by using the V groove. There is. Above V
In forming the groove, as shown in FIG. 6, a cutter such as a V-shaped chisel or chisel has a predetermined height with respect to a work placement surface (such as a conveyor surface (not shown)). It is fixed and pressed against the cutter from the end face side of the work to scrape it off.

[0003]

By the way, there is a phenomenon that the cutter is simply fixed and the work is easily lifted at the portion where the V groove is formed. Therefore, there is a problem that the relative position between the cutter and the work is not stable and the V-groove with a desired depth cannot be formed unless the work is pressed against the conveyor surface with a considerable pressure in the vicinity of the cutter. there were. Due to the above reasons, it has been impossible to form the V-groove on a soft material such as corrugated board among cardboard materials with the conventional cutter. Further, it has been difficult for the cutter to maintain the sharpness of the tip blade surface for a long time, and it is also difficult to polish the blade surface for regeneration. Furthermore, the chips when forming the V-groove with this cutter are connected to the upper part of the blade in a loop shape and are discharged for a long time, so that the chips are easily entangled with the surrounding mechanical parts,
There was an annoying problem that it had to be removed regularly.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a cutter for making a notch or a groove on the surface of a flat plate material such as a cardboard material or wood. Another object of the present invention is to provide a machine tool equipped with the cutter, which can maintain the sharpness of the tip blade surface for a long time, is easy to polish, and is easy to dispose of chips.

[0005]

A first feature of the configuration of the invention for solving the above-mentioned problems is a cutter for chamfering an outer peripheral end face of a flat plate material such as a cardboard material or wood, which is a cutter for a motor. A disk-shaped base that rotates with driving,
A plurality of cutting edge members joined to the outer peripheral end surface portion of the base at a predetermined interval, the cutting edge member having a part of a side surface of a cone having the base as a bottom surface as a constituent surface, and the base. A first blade surface having a predetermined width on the outermost peripheral side of the constituent surface and a second blade surface provided with a predetermined angle with respect to the first blade surface on the tip side in the rotational direction thereof It was equipped with and.

A second feature is a cutter for making a linear groove on the surface of a flat plate material such as a cardboard material or wood, which is a disk-shaped base that is rotated by the driving of a motor. When,
A plurality of cutting edge members joined to the outer peripheral end surface portion of the base at a predetermined interval, the cutting edge member having a part of a side surface of a cone having the base as a bottom surface as a constituent surface, and the base. A first blade surface having a predetermined width on the outermost peripheral side of the constituent surface and a second blade surface provided with a predetermined angle with respect to the first blade surface on the tip side in the rotational direction thereof And a pair of cutter members, the pair of cutter members being arranged symmetrically with respect to the rotation locus surface so that the rotation loci of the first blade surface substantially coincide with each other, and the cutting edge member in the rotation direction. Are combined so that they are located alternately.

The third feature is claim 1 or claim 2.
A machine tool equipped with the cutter according to claim 1, which has a working table on which the flat plate material is placed, and a rotary shaft which is parallel to the working table and pivotally supports the cutter.

"Operation of the first characteristic" By rotating a plurality of cutting edge members joined to the base at predetermined intervals,
Using the first blade surface and the second blade surface provided on the blade tip members, a cut for chamfering is performed on the outer peripheral end surface of a flat plate material such as cardboard or wood. In this way, the cutter is composed of a plurality of cutting edge members, and the first of them is rotated as the cutter rotates.
The blade surface and the second blade surface are successively cut into the flat plate material such as the cardboard material and the wood to be fed.

"Operation of the second characteristic" The pair of cutter members having the operation of the first characteristic are arranged symmetrically with respect to the surface of the rotational locus so that the rotational trajectories of the first blade surface substantially coincide with each other.
The cutting edge members are assembled so as to be alternately located in the rotational direction. In this way, the cutter is a combination of a pair of cutter members composed of a plurality of cutting edge members. A linear groove is formed by making independent cuts from the left and right one after another in flat plate materials such as cardboard and wood to which the first blade surface and the second blade surface are fed as the cutter members rotate. It will be cut.

"Operation of Third Characteristic" A machine tool provided with a cutter having the configuration of the first or second characteristic has the same function as the operation of the first or second characteristic of the pivotally supported cutter. Have. Therefore, by placing the flat plate material on the processing table and rotating the cutter while pivotally supporting the cutter on the rotary shaft, predetermined chamfering and grooving are achieved for the flat plate material.

[0011]

EXAMPLES The present invention will be described below based on specific examples. FIG. 1 is an overall configuration diagram showing a grooving device for a flat plate material such as a cardboard material or wood which is a machine tool using a cutter according to the present invention. The grooving device 100 is mainly composed of a bed 60 having a conveyor 61, an L-shaped support 70 fixed to the bed 60, a drive base 80 positioned on the support 70, and a rotatably rotatably supported by the drive base 80. And a cutter 50 that has been cut. The conveyor 61 on the bed 60 is driven from the front side to the back side in the figure. A work guide 62 for guiding the end surface of the work W, which is a flat plate material such as a cardboard material or wood, is disposed on the right side of the bed 60 in the vicinity of the conveyor 61 with respect to the feeding direction. The conveyor 61 is provided with a plurality of holes, and a blower device (not shown) sucks the work W through the holes to prevent the work W from floating and being displaced. A work placing table 63 is fixedly installed on the work loading side (front side) of the bed 60.
A ball screw 72 is provided on a lateral beam portion 71 of a column 70 which is an L-shaped cantilever. When the handle 73 is rotated, the ball screw 72 is rotated and the drive base 8
0 is moved in the left-right direction, and the position of V groove cutting described later is set. A drive motor 81 is fixedly mounted on the drive base 80, and the drive motor 81 is provided with a bearing 83 via a drive belt 82.
The rotating shaft 85 pivotally supported by is rotated. The cutter 50 is integrally fixed to the rotary shaft 85. The blade surface position of the cutter 50 with respect to the work W is determined by the same mechanism (not shown) as the horizontal direction described above so that the drive base 80 is attached to the cross beam portion 7 of the support column 70.
It is moved in the direction perpendicular to 1 and set in advance. The periphery of the cutter 50 is covered with a cover 90. The cover 90 is slidable with a shaft fixed to the drive base 80 and is biased toward the conveyor 61 by a spring. The cover 90 secures the safety of the work and is provided with rotatable pressing rollers 91 and 92 in the front and rear of the traveling direction of the work W so that the work W does not float up when grooving. The rollers 91 and 92 are the work W or the conveyor 6.
By making contact with the first surface, an appropriate gap is secured between the cover 90 and the work W or the surface of the conveyor 61. That is, depending on the end surface of the cover 90, the work W and the conveyor 6
1 Does not scratch the surface. Further, a dust collecting opening 95 is provided on the upper portion of the cover 90, and the dust collecting opening 95 is connected to a known dust collecting device via a hose (not shown).

FIG. 2 is a perspective view showing a cutter 50 according to the present invention, and FIG. 3 is a front view. 4 is a longitudinal sectional view taken along the line AA of FIG. 3, and FIG. 5 is one side (front side) in FIG.
FIG. 6 is a rear view of only the cutter member of FIG. still,
The arrows in FIGS. 2 and 3 indicate the direction in which the cutter 50 is rotated. The cutter 50 corresponds to the second invention of the present invention. Here, if only one of the cutter members 10 or 20 constituting the cutter 50 is used, it corresponds to the first invention in the case of chamfering the outer peripheral end surface of a flat plate material such as a cardboard material or wood. The cutter 50 is configured by combining a pair of cutter members 10 and 20. Both of the cutter members 10 and 20 are, for example, bases 11 and 21 made of carbon steel (S35C) and a cutting edge member 12 made of cemented carbide.
22 is joined with silver wax. The blade tip member 12 has a part of a side surface of a cone having an apex angle of 90 ° with the joined base 11 as a substantially bottom surface, and has a first blade surface 12 having a predetermined width on the outermost peripheral side.
a and a second blade surface 12b provided on the tip side in the rotation direction thereof with an angle of approximately 45 ° with respect to the first blade surface 12a. Similarly, the cutting edge member 22 includes a first blade surface 22a and a second blade surface 22b. The second blade surface 12
The angles of b and 22b with respect to the first blade surfaces 12a and 22a are appropriately changed depending on the material of the work W and the like. Cutter 50
In the state in which is fixed to the rotating shaft 85, a spacer 31 having a predetermined thickness is arranged between the base 11 of the cutter member 10 and the base 21 of the cutter member 20. With this spacer 31, the first blade surface 12 a of the blade member 12 of the cutter member 10 and the first blade surface 2 of the blade member 22 of the cutter member 20.
The rotation locus with 2a can be made to substantially match. Therefore, in the grooving by the cutter 50, the V grooving work of 90 ° (right angle) can be performed.

Next, the cutter 5 is cut by the above-described groove cutting device 100.
The V-groove cutting operation when 0 is used will be described with reference to FIG. The V groove cutting position of the work W is determined with respect to the work guide 62 by adjusting the position of the drive base 80 with the handle 73 and adjusting. After the V groove cutting position is determined, the conveyor 61 and the drive motor 81 are activated. Then, the work W is transferred from the work placement table 63 to the conveyor 61.
The work guide 62 is applied one-sided up and fed. Then, the work W is sucked by the conveyor 61 and guided from the work guide 62 to be sent from the front side to the back side. When grooving a work W made of a flat plate material such as cardboard or wood, the cutter 50 is usually rotated in the direction of the arrow in FIG. 1, that is, the work W is an upper cut.
The work W is sucked onto the conveyor 61 as described above and is pressed against the conveyor 61 by the pressing rollers 91 and 92. Therefore, the height relationship between the work W and the tip of the cutting edge of the cutter 50 is as set in advance, and the work W is V-grooved on the surface leaving a wall thickness of about 0.1 to 0.2 mm. At this time, the chips of the work W by the cutter 50 are finely cut without being discharged in a long state by being connected in a loop shape as in the conventional case. This is because the cutting edge members 12 and 22 of the cutter 50 have a part of the side surface of the cone as a constituent surface and are alternately positioned at a predetermined interval.
This is because arcuate cuts are made from left and right with respect to the planned V groove cutting line. Then, the finely cut chips of the work W are removed from the dust collecting opening 95 as described above without scattering by the cover 90. Since the cutter members 10 and 20 constituting the cutter 50 are composed of a plurality of blade edge members 12 and 22 having a predetermined interval, sharpness can be maintained for a long time. Furthermore, since the cutter 50 can separate the cutter members 10 and 20 even if the V-groove is cut, there is an effect that the polishing direction is one side and the polishing is easy.

Cutter member 1 constituting the above-mentioned cutter 50
The blade members 12 and 22 of 0 and 20 achieve V-groove of 90 ° by forming a part of the side surface of a cone having an apex angle of 90 ° with the joined base 11 as a substantially bottom surface. Here, for example, if the apex angle is 120 °, the cutter is capable of V-grooving at 60 °. By using the cutter 50 of the present invention, it is possible to form the V-groove even if it is made of a cardboard material or a soft material such as corrugated board. Further, by changing the shape of the blade surfaces of the blade tip members 12 and 22, a cutter capable of cutting U-shaped grooves or trapezoidal grooves can be configured.

[0015]

[Effect of the Invention] [First Effect] The present invention is configured as described above, and since the sharpness can be maintained for a long time by a plurality of cutting edge members and chips are finely cut and discharged, for example,
Can be easily removed by suction.

[Second Effect] The present invention is configured as described above, and in addition to the first effect, since a pair of cutter members are combined, the polishing direction is one side by separating them. There is an effect that the blade surface can be easily polished despite the cutter for grooving.

[Third Effect] The machine tool provided with the cutter of the present invention has the same effect as the first or second effect of the cutter supported by the shaft. Therefore, the sharpness of the cutter can be maintained for a long time, and the chips are finely cut and discharged. Further, since the cutter can be separated even for grooving, the blade surface can be easily polished.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a grooving device for a flat plate material such as a cardboard material and a wood which is a machine tool using a cutter according to a specific embodiment of the present invention.

FIG. 2 is a perspective view showing a cutter according to the embodiment.

FIG. 3 is a front view showing a cutter according to the embodiment.

4 is a vertical cross-sectional view taken along the line AA of FIG.

FIG. 5 is a rear view of only one (front side) cutter member in FIG. 3 as viewed from the back side.

FIG. 6 is an explanatory view showing V-grooving of a work in a conventional cutter.

[Explanation of symbols]

 10, 20-Cutter member 11,21-Base 12,22-Blade edge member 12a, 22a-First blade surface 12b, 22b-Second blade surface 50-Cutter 60-Bed (processing table) 70-Support 80 -Drive base 81-Drive motor 85-Rotating shaft 90-Cover 100-Grooving device (machine tool) W-Workpiece

Claims (3)

[Claims] 1. A cutter for chamfering an outer peripheral end surface of a flat plate material such as a cardboard material and a wood material, comprising: a disk-shaped base that is rotated by driving a motor, and an outer peripheral end surface portion of the base. And a plurality of blade tip members joined at a predetermined interval, the blade tip member having a part of a side surface of a cone having the base as a substantially bottom surface as a constituent surface, and when being joined to the base A first blade surface having a predetermined width is provided on the outermost peripheral side of the component surface, and a second blade surface provided at a predetermined angle with respect to the first blade surface on the tip side in the rotation direction thereof is provided. And a cutter. 2. A cutter for linearly grooving a surface of a flat plate material such as a cardboard material or wood, the disk-shaped base being rotated by the drive of a motor, and the base. It has a plurality of cutting edge members joined to the outer peripheral end surface portion at a predetermined interval, and the cutting edge member has a part of a side surface of a cone having the base as a substantially bottom surface as a constituent surface, and is joined to the base. In this case, a first blade surface having a predetermined width is provided on the outermost peripheral side of the constituent surface, and a second blade surface provided at a predetermined angle with respect to the first blade surface on the tip side in the rotation direction thereof is provided. The pair of cutter members are arranged symmetrically with respect to the plane of the rotation locus so that the rotation loci of the first blade surface substantially coincide with each other, and the blade tip members are alternately arranged in the rotation direction. A cutter characterized by being combined as follows. 3. A machine tool comprising the cutter according to claim 1, further comprising a processing table on which the flat plate material is mounted, and a rotary shaft that is parallel to the processing table and pivotally supports the cutter. A machine tool characterized by having.