JP2006167898A - Cutting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting device capable of eliminating nonconformity that a knife edge is abrased, or to the worst, it is broken, etc. or nonconformity that cutting quality is remarkably lowered in the neighborhood of a region where an outline of a writing article and an auxiliary cut line cross with each other as side pressure to move along the outline of the already cut writing article applies on an outline cut line of the writing article in forming the auxiliary cut line to cut off an non-required region. <P>SOLUTION: The auxiliary cut line to cut off the non-required region of a sheet type medium is constituted to form itself so as to vertically cross with the outline of the writing article, and consequently, the side pressure to move along the outline of the writing article never applies on the knife edge, influence on the knife edge can be reduced and the cutting quality is never spoiled in cutting the sheet type medium in accordance with the auxiliary cut line. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cutting device that cuts a sheet-like medium to be cut into a desired shape by relatively moving a cutting medium and a cutting blade.

A cutting plotter that is a cutting device of this type that cuts a sheet-shaped medium in a desired shape, sandwiches both end portions of the sheet-shaped medium between a driving roller and a driven roller (pinch roller), and rotates the driving roller forward and backward. By moving the sheet medium in the first direction (X-axis direction), the carriage is provided so as to be movable in a second direction (Y-axis direction) orthogonal to the first direction, and the carriage By moving the cutting pen that is pressed against and separated from the provided sheet-like medium, the cutting pen is moved in a two-dimensional direction with respect to the sheet-like medium and is selectively pressed and separated to cut into a desired shape. A sheet-like medium is placed on a cutting medium drive type cutting plotter or a flat table, and a second sheet is placed on the table. A Y bar movably provided in the direction, a carriage slidable in the second direction perpendicular to the first direction by sliding on the Y bar, and a sheet on the placement table in the carriage A cutting pen provided so as to be pressed and separated from the sheet-like medium is provided, and the Y bar and carriage are controlled to move, and the cutting pen is selectively pressed and separated from the sheet-like medium to cut it into a desired shape. A so-called flat bed type cutting plotter is known.
In these cutting devices, the cut desired shape, that is, a creation such as a figure or a character, is taken out by removing a blank portion of a sheet-like medium, that is, an unnecessary area, or by laminating an adhesive sheet and a mount. Is used, the unnecessary area is taken out or only the creation is taken out from the mount and used. However, for example, when the cutting shape is complicated and fine, the strength on the creation side is set on the unnecessary area side. The adhesive strength is lower, and the peeling work becomes difficult, or the creation work is damaged during the worst peeling work.
In view of these problems, in the conventional cutting apparatus, a cut (a cut, hereinafter referred to as “auxiliary cut line”) is made in advance in an unnecessary area to reduce the unit area, thereby making contact with the creation. It was configured to reduce the adhesive force when peeling by reducing the area, and to easily remove the creation.
Japanese Patent Laid-Open No. 61-297098

When creating an auxiliary cut line for removing unnecessary areas in a conventional cutting device, for example, if the auxiliary cut line intersects the contour cut line (outline) of the creation at an angle close to parallel, the auxiliary When the cutting line is cut, the cutting pen cutting edge, which is a cutting means, in the vicinity where it intersects the outline of the creative work is subjected to a lateral pressure that moves along the outline of the already cut creative work. If the medium is a hard material such as vinyl chloride resin, this will cause problems such as wear of the cutting edge or breakage of the worst cutting edge, and even if the medium is a soft material such as a cutting film The cutting quality will not deteriorate significantly near the intersection of the object outline and the auxiliary cut line. Such as a problem.
The present invention has been made to solve these problems.

  In the cutting apparatus of the present invention, the auxiliary cut line for peeling the unnecessary area of the sheet-like medium is corrected so as to intersect perpendicularly with the outline of the creative work, and the unnecessary of the sheet-like medium is based on the corrected auxiliary cut line data. Configured to cut the area.

  According to the cutting device of the present invention, the auxiliary cut line for peeling the unnecessary area of the sheet-shaped medium is formed so as to intersect perpendicularly with the outline of the creation, so the sheet-shaped medium is based on the auxiliary cut line. When cutting, the side pressure that moves along the outline of the creation is not applied to the cutting edge, the influence on the cutting edge can be reduced, and the cutting quality is not impaired.

  The cutting operation was performed after correcting the cutting data of the auxiliary cut line so that the angle of each line at the intersection of the auxiliary cut line and the outline of the creative crop was 90 degrees.

The cutting apparatus of the present invention will be described below with reference to the drawings.
FIG. 1 is a view showing a configuration of a cutting medium drive type cutting plotter which is an example of a cutting apparatus according to the present invention. In the figure, 1 is a cutting plotter body which is a cutting apparatus, 2 is a driving roller, 3 is a pinch roller, 4 is a pen block, 5 is a cutting pen that is a cutting means, 6 is a sheet-like medium such as a cutting film that is a medium to be cut, and 7 is a control unit that performs various controls.
The driving roller 2 is supported by the cutting plotter body 1 so that rotational driving force in a forward / reverse direction of a driving motor (not shown) is transmitted and rotationally driven. Further, the pinch roller 3 is pressed against the drive roller 2 via the sheet-like medium 6 and is driven to rotate following the forward / reverse rotation of the drive roller 2. A sheet-like medium 6 that is a medium to be cut is provided such that both ends thereof are sandwiched between the driving roller 2 and the pinch roller 3 and driven in the X-axis direction in the figure by the rotational driving of the driving roller 2.
The pen block 3 is provided so as to be slidable and movable on a Y-bar extending in the Y-axis direction orthogonal to the X-axis direction on the plotter main body 1 by a moving mechanism (not shown), and a cutting pen as a cutting means. 5 is held and is lowered and raised by an actuator (not shown) so as to be selectively pressed and separated from the sheet-like medium 6.
The control unit 7 creates cutting data by the cutting pen 5 based on the cut data of the shape to be cut transmitted from a host device such as a computer, and based on the cutting data transmitted from the control device 70. The drive control unit 71 is configured to drive and control the X-axis drive control unit 72, the Y-axis drive control unit 73, and the Z-axis control unit 74, respectively. The X-axis drive control means 72 is a drive motor that rotationally drives the drive roller 2 in forward and reverse directions, the Y-axis drive control means 73 is a drive motor that controls movement of the pen block 4 in the Y-axis direction, and the Z-axis. The drive control means 74 controls the drive of the actuator that presses and separates the cutting pen 5 from the sheet-like medium 6.
In this cutting plotter, the drive roller 2 is driven and controlled by the X-axis drive controller 72 to move the sheet medium 6 in the X-axis direction in the figure, and the pen block 3 is moved to the Y bar by the Y-axis drive controller 73. The cutting pen 5 is slid (moved in the Y-axis direction) to move the cutting pen 5 in a two-dimensional direction relative to the sheet-like medium 6, and the cutting pen 5 is selectively sheet-shaped by the Z-axis drive control unit 73. The sheet-like medium 6 is cut into a desired shape by the cutting pen 5 by being brought into contact with and separated from the medium 6.

Next, the creation and cutting operation of auxiliary cut line data by the cutting apparatus of the present invention will be described.
FIG. 2 (a) is cut data for cutting the sheet-like medium 6 by this type of cutting apparatus. The outline data OL used as a creation and the creation as a sheet are shown in FIG. The auxiliary cut line data SCL for easily taking out from other areas of the medium 6, that is, unnecessary parts.
These cut data are usually created by application software in a host device such as a computer, and as data on the application software side, that is, image data, for each object such as each line segment (or curve), line type, line color, line width, Attributes such as the coordinates of the start point and end point are given, and one piece of cut data is composed of a plurality of object data. In addition, in the cut data, whether each object is “contour line of creation” (OL) or “auxiliary cut line data” (SCL) is determined based on each specific attribute on the application software side. For example, a specific attribute such as “line type is a solid line and line color is black” in the outline data OL of the creative work, and “line type is a solid line and line color is red” is included in the auxiliary cut line data SCL. When creating cut data in the application software, the attributes of each object are assigned and stored, and in the cutting operation, these attributes are detected, Each object is configured to determine whether it is a contour line OL or auxiliary cut line data SCL of a creation. FIG. 4 is a diagram showing the configuration of the cut data created in this way, and the attribute data is individually assigned to the stored line and other object data, respectively. One piece of image data (cut data) is configured.

FIG. 3 is a flowchart showing the creation and cutting operation of the auxiliary cut line data SCL by the cutting device of the present invention. When a cutting command from a host device such as a computer is detected, the control device 70 first uses a plurality of object data. One object data is read from the cut data. (STEP1)
Next, the attribute data assigned to the read object data is detected to determine whether this is the creation outline OL or the auxiliary cut line data SCL. (STEP2)
In the case of the present embodiment, referring to the attribute data given to the read object data and detecting that the line color is “black”, this is “the contour line OL of the creation”. In step 6, the drive control device 71 is controlled to drive the X-axis, Y-axis, and Z-axis drive control units 72 to 74 so as to cut from the start point coordinate to the end point coordinate of this object. Then, the sheet medium 6 is cut by the cutting pen 5. When the cutting of the object is completed, the process proceeds to STEP 7 to detect whether or not there is data (object) to be subsequently cut. If it is determined that there is this, the process returns to STEP 1.
In STEP 2, when the read object data is the auxiliary cut line data SCL, that is, in the present embodiment, referring to the attribute of the read object and detecting that the line color is “red”, STEP 3 Then, the control device 70 refers to the cut data, and reads “the contour line OL of the creation” that intersects the read auxiliary cut line data SCL. That is, as shown in the enlarged portion on the right side of FIG. 2A, the data of the contour line OL including the coordinates of the end point A of the auxiliary cut line data SCL read in STEP 1 on the locus is read from the cut data. Next, the inclination of the read outline data OL is calculated, and the inclination of the perpendicular to the outline data OL is calculated from the calculated inclination. (STEP4)
Next, a line segment intersecting each of the contour line data OL and the auxiliary cut line SCL having the same inclination as the perpendicular line of the calculated contour line data OL and a predetermined length D of the line segment length. And the coordinates of the intersection point B between the calculated line segment and the auxiliary cut line SCL and the contour line data OL are calculated. Further, as the cutting data of the auxiliary cut line SCL, a linear locus portion passing through the point B and reaching the point A is changed in a direction from the point B to the point C, and the auxiliary cut line SCL is the contour line OL at the point C. Cut data (corrected cut data) for cutting along a trajectory that intersects perpendicularly with respect to is generated. (STEP5)
Next, the process proceeds to STEP 6 and the drive control device 71 is controlled to drive the X-axis, Y-axis, and Z-axis drive control units 72 to 74 based on the generated correction cut data. As shown in the enlarged portion on the right side of b), the sheet-like medium 6 is cut so that the auxiliary cut line SCL intersects the line segment data OL perpendicularly, and the process proceeds to STEP7.
Thereafter, the contour line OL is cut based on the cut data, and the auxiliary cut line SCL is cut after the correction cut data is generated so as to intersect perpendicularly to the contour line OL. The cutting data shown in a) is cut along a locus as shown in the lower figure (b) of FIG.
As a result, the auxiliary cut line SCL can be cut along a trajectory that intersects perpendicularly with the contour line OL of the creation, so that the influence of the cutting means on the cutting edge can be reduced.

In the above-described embodiment, an example is shown in which an operator creates a contour line OL and an auxiliary cut line SCL of a creation by application software in a host device such as a computer, and corrects cutting data of the auxiliary cut line SCL by a cutting device. However, as shown in FIG. 5, the auxiliary cut line SCL may be created by a cutting device and further corrected.
That is, as shown in the upper diagram (a) of FIG. 5, the operator creates cut data only for the contour line OL of the creation, and when cutting with the cutting device, as shown in the diagram (b) of FIG. The auxiliary cut line SCL is cut at a predetermined interval. Further, as shown in the lower part (c) of FIG. 5, the intersection of the auxiliary cut line SCL and the contour line OL of the creation is the same as in the first embodiment. You may comprise so that correction | amendment cut data may be produced | generated so that it may become a locus | trajectory which cross | intersects perpendicularly | vertically.
According to the second embodiment, it is possible to omit a procedure such as data creation of the auxiliary cut line SCL by the operator.

  In the above embodiment, the cutting apparatus of the present invention has been described with the cut medium drive type cutting plotter. However, the present invention is not limited to this, and a flatbed type cutting plotter or a sheet-like medium is desired. It is also possible to apply to a sheet-like medium lamination type modeling apparatus that creates a three-dimensional shape by cutting into shapes and laminating them.

It is a figure which shows the structure of the cutting apparatus of this invention. It is a figure explaining cutting operation by the cutting device of the present invention. It is a flowchart explaining the cutting operation by the cutting apparatus of this invention. It is a figure which shows the structure of the cut data in the cutting apparatus of this invention. It is a figure explaining 2nd Example of this invention.

Explanation of symbols

1 Cutting device body 2 Drive roller 3 Pinch roller 4 Pen block 5 Cutting means (cutting pen)
6 Sheet medium 7 Control unit

Claims (2)

Based on the cut data, the sheet medium and the cutting blade are relatively moved, the sheet medium is cut into a desired shape to create a creation, and the outline of the creation is created in an unnecessary area of the sheet medium. In a cutting device for cutting a sheet-like medium based on auxiliary cutting line data for peeling formed so as to intersect
A cutting apparatus for cutting an unnecessary area of a sheet-like medium by correcting data of the auxiliary cut line in accordance with each angle at the intersection of the auxiliary cut line and the outline of the creative work.   2. The cutting apparatus according to claim 1, wherein the auxiliary cut line is formed so as to intersect perpendicularly with the outline of the creation.

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