JP2000000793A - Cutting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably make an oblique cut with simple constitution by arranging an obliquely cutting edge so as to be capable of advancing/retreating in parallel at a prescribed angle and an installing angle to a workpiece. SOLUTION: A tool head 300 is provided with a lower plate 301, an upper plate 302, a pen mechanism 310, the first tool part 320 and the obliquely cutting tool part 340. The obliquely cutting tool part 340 is provided with an obliquely cutting edge 341, a second MC (a mooving coil type actuator) 342 and a second tool shaft 343. An obliquely cutting edge 341 can be positioned in an actuatable position through the second tool shaft 343 by vertical operation of the second MC 342. When a control means issues an action command of the obliquely cutting edge 341, the second MC 342 is excited to drive the second tool shaft 343 downward. In the stage when the obliquely cutting edge 341 enters a workpiece 400 by the prescribed length, the control means issues a moving command to the tool head 300 to make an oblique cut by moving the obliquely cutting edge 341.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting apparatus for relatively processing a workpiece and a cutting blade to cut the workpiece. More specifically, an object of the present invention is to provide a cutting device capable of cutting a workpiece at an angle.

[0002]

2. Description of the Related Art A conventional cutting apparatus generally has a cutting blade disposed at a right angle to a workpiece. Then, for example, when performing hollow cutting, the cutting blade is moved in a state in which it enters so as to penetrate the workpiece. The cut of the workpiece by such cutting is vertical.

[0003]

For example, when a picture frame is to be produced using thick paper, the cut-out portion has a slant cut edge, so that it looks good. In a conventional ordinary cutting apparatus, there is no apparatus that can perform such an oblique cutting. The present invention has been made to improve this point, and provides a cutting device having a simple configuration and capable of reliably performing an oblique cut.

[0004]

According to the present invention, there is provided a cutting apparatus for performing desired cutting on a workpiece by relatively moving the workpiece and a cutting blade. An oblique cutting blade is provided so as to be attached at a predetermined angle with respect to and to be able to advance and retreat in parallel to the attachment angle.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to one embodiment of the drawings. As shown in FIG. 2, the cutting device according to the present invention includes a table 100 on which a workpiece 400 is placed,
Rail 2 that moves on table 100 in one direction
00, and a tool head 300 attached to the rail 200 and movable along the rail. The tool head 300 is provided with a plurality of processing tools as described later, and is configured to be able to process the processing material 400 placed on the table 100. These components are controlled by control means (not shown).

The tool head 300 has a lower plate 301 and an upper plate 302 as shown in FIG. These two
One plate is provided with a pen mechanism 310, a first tool section 320, and an oblique cutting tool section 340.

The pen mechanism 310 includes a pen and a pen upper and lower MC.
(Moving coil actuator, the same applies hereinafter.) 3
11 The pen upper and lower MC 311 moves the pen 310 toward and away from the workpiece 400 in response to a command from the control unit. By moving the tool head 300 with only the pen 310 in the operating state, a sketch can be drawn on the workpiece 400.

The first tool section 320 has a vertical blade 321 for performing vertical cutting, a first MC 322 and a first tool shaft 323. The first MC 322 moves the first tool shaft 323 up and down in response to a command from the control unit. Therefore, the workpiece 400 can be cut by moving the tool head 300 in a state where the first tool shaft 323 is pressed down by the first MC 322.

A transmission gear 324 is attached to the first tool shaft 323, and has a structure driven by a motor 331. Therefore, even when the tool head 300 moves in a curved manner, the vertical blade 32
1 in the direction of its movement. Note that the encoder 325 is connected to the first tool shaft 323, that is, the vertical blade 32.
This is for managing the orientation of the device.

The oblique cutting tool section 340 includes the oblique cutting blade 3
41, a second MC 342 and a second tool shaft 343. The vertical movement of the second MC 342 causes the second tool axis 3
The oblique cutting blade 341 can be positioned at a position where the oblique cutting blade 341 can be operated via 43. Similarly to the first tool shaft, the second tool shaft 343 is provided with a transmission gear 344 and an encoder 345 connected to the motor 331.
Thereby, the oblique cutting blade 341 can be rotated 360 degrees around the second tool axis 343.

FIG. 3 shows the operation of the oblique cutting tool 340 in more detail. 3A shows the inoperative state, FIG. 3B shows the intermediate state in which the oblique cutting edge 341 reaches the operating position, and FIG. 3C shows the operating state.

When the oblique cutting blade 341 is inactive, the second MC 342 is not excited and is at the upper position.
At this time, the second tool shaft 343 is also at the upper position. Therefore, the oblique cutting blade block 348 is also in the upper position.

When the control unit issues an operation command for the oblique cutting blade 341, the second MC 342 is excited to drive the second tool shaft 343 downward. As shown in FIG. 3B, the second tool shaft 343 has an inner shaft 353 connected to the transmission mechanism 351 of the oblique cutting blade block 348 and an outer shaft 354 for holding the oblique cutting blade support 346. Since these two shafts are connected by a spring 347, the inner shaft 353 and the outer shaft 354 move downward substantially synchronously.

FIG. 3B shows a state in which the lower end of the oblique cutting blade support 346 attached to the outer shaft 354, that is, the work material holder 352, is in contact with the work material 400. Therefore, the outer shaft 354 stops at this position, but the inner shaft 35
3 can move further down.

The diagonal cutting blade block 348 is provided with a guide groove 350 for defining the direction in which the diagonal cutting blade 341 moves. Further, the transmission mechanism 351 of the block 348 has a connection portion with the inner shaft 353 formed as an elongated hole. Therefore, as the inner shaft 353 of the second tool shaft 343 further descends, the oblique cutting blade 341 can enter the workpiece 400 as shown in FIG.

In this case, the work material retainer 352 and the oblique cutting blade support 34, which are in contact with the work material 400, are suppressed.
The lower right end of 6 is configured as a surface with which the oblique cutting blade 341 that moves forward and backward contacts. Thereby, the oblique cutting blade 34
This prevents the blade 341 from bending or the like when the workpiece 1 enters (pierces) the workpiece 400.

At the stage where the oblique cutting blade 341 has entered the workpiece 400 by a predetermined length (the state shown in FIG. 3C), the control means issues a movement command to the tool head 300. Thereby, the oblique cutting blade 341 moves, and oblique cutting is performed. When this oblique cutting is completed, the second M
C342 is excited in the opposite direction to make the oblique cutting blade 341 easily come off the workpiece 400.

In the above embodiment, the oblique cutting blade 34
As the first supporting method, a structure in which one surface of the oblique cutting blade 341 is guided to slide and retreat is used. However, a support tool which sandwiches both surfaces of the oblique cutting blade 341 to slide and retreat may be used. Thereby, the more reliable oblique cutting blade 3
41 can be ensured to enter the workpiece 400.

The oblique cutting edge 341 shown in FIGS. 1 and 3
Indicates a material supported at an angle of 45 degrees with respect to the workpiece 400. However, if necessary, the oblique cutting blade 341 can be supported at 60 degrees as shown in FIG. In this case, the guide groove 350 is also configured to be at 60 degrees. Note that, in this case, the oblique cutting blade block 348 may be configured to rotate collectively using a drive source, and an angle adjusting mechanism for automatically controlling the angle of the oblique cutting blade 341 may be mounted.

FIG. 5 shows the tool head 300 shown in FIG.
5 shows a state where the cutting sheet 401 is cut. In FIG. 5, the vertical blade 321 and the oblique cutting blade 341 act on the cutting sheet 401 at the same time, but actually act independently on each. The vertical blade 321 operates perpendicular to the cutting sheet 401, and the oblique cutting blade 341 operates at a predetermined angle.

FIG. 6 shows the cutting shapes of the respective components shown in FIG. The cutting by the vertical blade 321 is a vertical cut as shown in the left side of FIG. As shown in the right side of the figure, the cut by the oblique cutting blade 341 can be tapered at a predetermined angle. It is most suitable for forming picture frames.

FIG. 7 shows the operation of the oblique cutting tool portion 340 of the tool head shown in FIG.
This is a 5 degree oblique cut. First, the cutting direction of the oblique cutting blade 341 is changed using the motor 331 of FIG.
Turn in the direction of arrow (1). Then, this oblique cutting blade 3
41 is moved in the direction of arrow (1) so as to pierce the styrene board 403. Next, at the stage of the arrow (2), the direction of the oblique cutting blade 341 is reversed by driving the motor 331. By moving in the direction indicated by the arrow (3), two 45-degree diagonal cuts can be made, and a triangular space opened at 45 degrees can be created. By cutting in this manner, the styrene board 403 can be accurately bent as shown in FIG. This is convenient for producing a model or the like.

[0023]

As described above, according to the present invention, a reliable oblique cut can be realized with a relatively simple structure.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a tool head according to the present invention.

FIG. 2 is a perspective view of a main part of a cutting device according to the present invention.

FIG. 3 is an explanatory diagram showing the configuration of a diagonal cutting tool unit of the present invention in detail.

FIG. 4 is an explanatory view showing another example of the diagonal cutting tool unit.

FIG. 5 is a schematic diagram showing an operation state of the tool head shown in FIG. 1;

FIG. 6 is an explanatory diagram showing an example of cutting the tool head of FIG. 1;

FIG. 7 is an explanatory view showing another example of the oblique cut of the present invention.

8 is an explanatory view showing a state where the styrene board of FIG. 7 is bent.

[Explanation of symbols]

100: Table 300: Tool head 400: Work material

Claims (1)

[Claims] 1. A cutting device for relatively moving a work material and a cutting blade to perform a desired cutting on the work material, wherein the cutting device is attached to the work material at a predetermined angle and the mounting is performed. An oblique cutting blade installed so as to be able to advance and retreat in parallel to an angle, a work material retainer provided near the oblique cutting blade acting on the work material, an oblique cutting blade advancing and retracting mechanism for moving the oblique cutting blade forward and backward at the mounting angle, A contact / separation mechanism for contacting / separating the press from / to the work material, and control means for controlling each of these devices; and In a state where the oblique cutting blade is made to enter the work material at a predetermined angle by operating the blade advance / retreat mechanism, the work material and the oblique cutting blade are relatively moved to perform the machining. A cutting device for performing cutting of a work material.