JPH02243292A - Cutting notch forming method by cutting plotter - Google Patents

Abstract

PURPOSE:To prevent a sheet section from being jammed by pressing the partial periphery of a sheet inward around the corner section of it by the use of the tip end of a cutter when a corner section for cutting notches having a corner section in an edge shape on the sheet, are being formed, and thereby holding the sheet in a state that the inside of the sheet section around the corner of it is rolled up above a recording surface. CONSTITUTION:When cutting notches pointed in an edge shape are formed on a sheet 10, the cutter 40 is so weakened in cutting pressure that the cutting edge 402 at the tip end of its runs aground on the sheet 10 or on a place near by. The cutter 40 aground on the sheet is significantly rotated around its axial center while the cutting edge 402 of it is remained aground on the sheet 10 or on the place near by, this thereby results in a significant change in the forming direction of the cutting notches 30. This permits the tip end of the band plate 401 of the cutter aground thereon to press the partial periphery of the sheet 10 inward, which is being formed into the cutting notches pointed in an edge shape, thereby preventing the sheet from being jammed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cutting plotter that is used to form perforations on a sheet for forming apparel patterns, bag paper, etc. Concerning a cutout formation method.

[Prior Art] Conventionally, there is a plotter called a cutting block in which a cutter is attached to a pen carriage.

According to this plotter, the cutter attached to the pen carriage is pressed against the sheet mounted on the recording surface with a predetermined writing pressure, and the pen carriage is moved relatively in the X-Y direction on the sheet. This allows the sheet to be cut into a predetermined shape with a cutter.

By the way, the present inventor has already used the above-mentioned plotter to form a predetermined shape on a sheet, such as for forming patterns for apparel or paper for bags, as described in the specification and drawings of Japanese Patent Application No. 63-322419. We have developed a method for forming cutouts that can be easily and quickly formed.

This cutout formation method involves reducing the pen pressure of the cutter by a small amount of time at regular intervals while moving the cutter in the X-Y direction on the sheet while the cutter is pressed against the sheet. This is a method of forming cuts on a sheet.

According to this method, the cutter attached to the pen carriage does not need to be raised and lowered repeatedly up and down on the sheet over a long period of time. can be formed quickly and accurately.

[Problem to be Solved by the Invention] However, as shown in FIG. 4, the cutout 30 having the sharp edge-shaped corner portion 20 is formed on the sheet 10 using the above cutout forming method. In this case, the cutter 4 that is cutting the corner part 20 of the perforation
0 presses the periphery of the sheet 10 portion around the corner portion inward, and presses the sheet portion inner side 101 around the corner portion 20.
was rolled up above the recording surface 50.

This means that the cutter 40 attached to the pen carriage is
As shown in the figure, the tip of the band plate 401 has a shape in which a cutting blade 402 is formed diagonally upward, and the cutter 40 cuts a sharp edge-like cut 3 into the sheet 10.
0, the cutter 40 rotates greatly on the sheet 10 around its axis, and the tip of the band plate 401 of the cutter cuts around the corner 20 of the cutout being cut with the cutting blade 402 at the tip. This is because the peripheral edge of the sheet 10 portion is pressed inward.

Then, the corner portion 2 is turned up.
The inside 10゛1 of the sheet part around 0 is the cutter band plate 401
The so-called jam phenomenon (
This is a condition in which the sheets 10 are folded in a complicated manner and overlapped. Then, it has become impossible to accurately form the cutout 30 on the sheet 10 around the corner portion 20 where the jam phenomenon has occurred.

The present invention has been made in view of the above problems, and its purpose is to create a cutout formation method (hereinafter referred to as "cutting plotter") using a cutting plotter that can always accurately form cutouts with edge-shaped corners on a sheet. The purpose of the present invention is to provide a method of forming a cutout.

[Means for Solving the Problems] In order to achieve the above object, the cutout forming method of the present invention uses a cutter 40 attached to a pen carriage 60, as examples of which are shown in FIGS. 1 to 3. is pressed against the sheet 10 mounted on the recording surface 50 in a vertically movable manner with a predetermined writing pressure, and the pen carriage 60 is moved in the X-Y direction relative to the sheet 10 to write the sheet 10. The cutter 40 is a plotter for cutting, and the cutting line 30 is formed on the sheet 10 by decreasing the pen pressure of the cutter 40 that is pressed onto the sheet 10 for a minute at regular time intervals.
In a plotter for forming a cutout 30 having an edge-shaped corner portion 20 on the sheet 10, an uncut g5301 of the cutout 30 is formed in the corner portion 220, and the cutout 30 is formed on the sheet 10. It is characterized by forming a cutout 30 on the top.

In addition, in the cutout forming method of the present invention comprising the above-mentioned steps, the uncut portion 3 of the cutout at the corner portion 20, etc.
01, it is preferable to reduce the pen pressure of the cutter 40 to such an extent that a groove 70 is formed on the surface of the uncut portion 301 of the cut line.

[Operation] In the perforation forming method of the present invention comprising the above steps, when the perforation 30 having the edge-shaped corner portion 20 is formed on the sheet 10, the uncut portion 301 of the perforation is formed in the corner portion 20. We are trying to form a

Therefore, there are sharp edge-shaped cuts 3 on the sheet 10.
0, as shown in FIG.
At 0, the pen pressure is reduced and the cutting blade 402 at the tip is on or near the sheet 1o.

Then, the cutter 40 that has been placed on top of the sheet 10, with the cutting blade 402 at its tip placed on or near the sheet 10, rotates (rotates) around its axis to make the cut edge. This results in a major change in the direction in which the 30 is formed.

Therefore, the strip plate 4 of the cutter that was in the above-mentioned state
01 tip presses the periphery of the portion of the sheet 10 forming the sharp edge-like cutout 30 inward, and the inner side 101 of the sheet portion turns upward on the recording surface 50, resulting in a jam. It does not cause any phenomenon.

In addition, there is an uncut portion 30 at the corner portion 20, etc.
1, the pen pressure of the cutter 40 is reduced to such an extent that a groove 70 is formed on the surface of the uncut portion 301 of the cut. The uncut portion 30 is formed on the surface of the uncut portion 301 of the cutout such as the sharp corner portion 20.
1 can be provided with grooves 70 that allow it to be easily and accurately divided into left and right sides.

[Example] Next, embodiments of the present invention will be described with reference to the drawings.

1 to 3 show a preferred embodiment of the perforation forming method of the present invention, and FIG. 1 shows a method for forming perforations having edge-shaped corners on a sheet using the method. FIG. 2 is a diagram illustrating the state of forming cuts with edge-shaped corners on a sheet using this forming method, and FIG. 3 is a block diagram showing the schematic structure of the cutting plotter. . The embodiment shown in the above figure will be described below.

In the figure, 60 is a pen carriage on which the cutter 40 is attached. This pen carriage 60 is equipped with an actuator 601 that directly grips the cutter 40 . This actuator 601 uses a coil 602 as a driving source, and can pass current through the coil 602, stop the current flowing through the coil 602, or change the magnitude and direction of the current flowing through the coil 602. By doing so, the cutter 40 held by the actuator 601 can be lowered onto the sheet 10 mounted on the recording surface 50 or raised above the sheet 10. In addition, the coil 6 of the actuator
By changing the magnitude of the current flowing through the recording surface 5
The cutter 40 can be pressed onto the sheet 10 mounted on the sheet 10 with varying degrees of pen pressure. In addition, with the force/vine 40 pressed against the sheet 10 with a predetermined writing pressure, the cutter 4
When a force of a predetermined magnitude or more is applied above the cutter 40, the cutter 40 can be lifted above the sheet 10.

That is, the pen carriage 60 can press the cutter 40 held by the actuator 601 onto the sheet 10 mounted on the recording surface 50 with varying pen pressure in a vertically movable manner.

80 is an actuator 60 that grips the cutter 40
1 driving means, which allows the driving means 80 to pass current through the coil 602 of the actuator, stop the current flowing through the coil 602, or to stop the current flowing through the coil 602.
You can change the magnitude and direction of the current flowing through it. This driving means 80 includes a CPU (central processing unit) 100 that operates based on instructions from a host computer 90.
are connected to each other, and the driving means 80 is controlled by the CPU 100.
can be controlled.

Further, this plotter uses a conventionally known moving means (
(not shown).

To explain this moving means in detail, in a block called a vertical type, a pair of grid rollers (not shown) and a pinch roller (not shown) that sandwich both sides of the sheet 10 mounted on the recording surface 50 from above and below, and a pen carriage moving means (not shown), which rotates the pair of grid rollers and pinch rollers to move the sheet 10 sandwiched between both rollers on the recording surface 50 back and forth, that is, in the Y direction. At the same time, the cutter 40 mounted on the pen carriage 60 is moved onto the recording surface 50 by moving the pen carriage 60 mounted on the cutter 40 onto the recording surface 50 by moving the pen carriage 60 mounted on the pen carriage 60 to the left and right, that is, in the X direction, over the sheet 10 mounted on the recording surface 50. The mounted seat 10 can be relatively moved in the X-Y direction.

In addition, a so-called horizontal plotter is equipped with a pen carriage moving means (not shown) for moving the pen carriage 60 in the X direction and the Y direction on the recording surface 50, and the pen carriage moving means moves the pen carriage 60.
By moving in the X-Y direction on the recording surface 50,
The cutter 40 attached to the pen carriage 60 is placed on the recording surface 50.
It is possible to move the seat IO mounted on the seat IO relatively in the X-Y direction.

Furthermore, the CPU 100 controls a servo motor (
(not shown), etc. can be controlled.

Hereinafter, an embodiment will be described in detail in which a cutout 30 having a sharp edge-like corner portion 20 is formed on a sheet 10 by the cutout forming method of the present invention using the plotter having the above-described configuration.

The sheet 10 is mounted on the recording surface 50. And cpu
The driving means 80 is actuated by too, and the cutter 40 held by the actuator 601 of the pen carriage is lowered and pressed onto the sheet 10 mounted on the recording surface 50. Specifically, a current of a predetermined magnitude is caused to flow in a predetermined direction through the coil 602 of the actuator, and the cutter 40 is pressed onto the sheet 10 with a predetermined pen pressure so as to be able to move up and down.

Next, the CPU 100 operates the moving means to move the pen cartridge ridge 60 relatively over the sheet 10 mounted on the recording surface 50 in the X-Y direction.

Then, with the cutter 40 pressed against the sheet 10 with a predetermined writing pressure as described above, the pen carriage 60 is moved relatively over the sheet 10 in the X-Y direction and attached to the pen carriage 60. The cutter 40 cuts the sheet 1
While cutting 0, the driving means 80 is controlled by the CPU 100 operating based on instructions from the host computer 90, and the pen pressure of the cutter 40 pressed against the sheet 10 is repeatedly applied at regular intervals to a small amount. Decrease time.

Then, when the pen pressure of the cutter 40 is reduced for a minute, the cutter 40 cannot completely cut the sheet 10, and the cutting blade 402 at the tip of the cutter rests on or near the surface of the sheet 10.

Then, a small uncut portion 30 is formed in a part of the sheet 10.
1 is formed. Thereafter, the above-described operations are sequentially repeated at regular time intervals to form perforations 30 on the sheet 10 with uncut portions 301 provided at predetermined intervals.

The above is the same as the conventional cutout formation method described above, but
In the cutout forming method of the present invention, the sheet 10
When forming the sharp edge-like cutout 30 on the top, an uncut part 301 is formed at the corner part 20 of the edge-like cutout.

Specifically, in the plotter described above, the pen carriage 6
While forming the edge-shaped cutout 3o on the sheet 10 with the cutter 40 attached to the cutter 40, when the cutting blade 402 at the tip of the cutter approaches the corner 20 of the sharp cutout on the sheet 10, The driving means 80, which operates based on a command from the CPU 100, weakens the magnitude of the current flowing through the coil 602 of the actuator, thereby reducing the writing pressure of the cutter 40 pressed against the sheet IO for a short time. Then, an uncut portion 301 is formed at the corner portion 20 of the sharp cutout on the sheet IO.

Then, when forming the corner portion 20 of the sharp edge-like cutout on the sheet IO, as shown in FIG.
The cutter 40 runs on the surface of the sheet 10 or near it.Then, the cutter 40, which is in the state of riding on the surface of the sheet 10, rotates its shaft while the cutting blade 402 at its tip remains on the surface of the sheet 10 or near it. By rotating greatly around the center, the direction in which the cutout 30 is formed is greatly changed.Then, the tip of the band plate 401 of the cutter, which is in the above-mentioned state and rotates greatly, becomes sharp in the above-mentioned edge shape. To smoothly and accurately rotate a cutter 40 largely on the sheet 10 about its axis without being obstructed by the sheet 10, without pressing the periphery of the portion of the sheet 10 in which the cutout 30 is being formed. becomes.

Therefore, while the cutter 40 is forming the corner portion 20 of the cutout, the tip of the cutter 40 presses the periphery of the sheet 10 portion around the corner portion 20 inwardly, so that the inner side 101 of the sheet portion is on the recording surface 50. It does not roll up upwards and cause a jam phenomenon.

In addition, in the cutout forming method of the above-described embodiment, when forming the uncut portion 301 at the corner portion 20 of the cutout, the pen pressure of the cutter 40 is reduced to such an extent that the groove 70 is formed on the surface of the uncut portion 301. If this is done, a groove 70 is formed on the surface of the uncut portion 301 formed at the corner portion 20 of the edge-shaped cutout, etc., so that the uncut portion 301 can be easily and precisely divided into left and right sides. It's good to be able to do that. Then, uncut portions 30 such as the corner portions 20 of the edge-shaped cutouts of the sheet 10 are provided.
When dividing the sheet 10 into left and right parts, by dividing the uncut parts 301 into left and right parts from the grooves 70 on the surface thereof, the corner parts 20 etc. of the sheet 10 can be left in a beautiful state with sharp edges without being chipped. It's great for cutting out apparel patterns, bag-forming paper, etc.

[Effects of the Invention] As explained above, according to the cutout forming method of the present invention, when forming a cutout with an edge-shaped corner on a sheet, the corner of the edge-shaped cutout is During the formation, the cutter tip presses the periphery of the sheet portion around the corner portion inward, and the inner side of the sheet portion around the corner portion is rolled up above the recording surface to prevent jamming in the sheet portion. You can do it like this. Moreover, the cutouts having the edge-shaped corner portions can always be formed neatly and precisely on the sheet.

In addition, when forming an uncut portion of the cutout in the corner portion, etc., the cutter forming method of the present invention reduces the pen pressure of the cutter to such an extent that a groove is formed on the surface of the uncut portion of the sheet. For example, a groove can be formed on the surface of the uncut portion formed at the corner portion or the like to allow the uncut portion to be easily and precisely divided into left and right sides. Then, when cutting out apparel patterns, bag forming paper, etc. from the sheet by dividing the sheet left and right from the cutouts having the sharp edge-like corners, the cutouts formed at the sharp edge-like corners are used. The remaining portion can be easily and accurately divided into left and right sides from the grooves made on the surface, and it is possible to cut out apparel patterns, bag forming paper, etc., with beautiful edges and no missing corners. .

[Brief explanation of drawings]

FIG. 1 is a plan view showing a method of forming perforations with edge-shaped corners on a sheet by the perforation forming method of the present invention, and FIG. Fig. 3 is a block diagram showing the schematic structure of the cutting plotter, and Fig. 4 shows how to form edge-shaped corners on a sheet using the conventional cutout forming method. FIG. 3 is an enlarged perspective view illustrating a method of forming a cutout. 10... Sheet, 20... Corner part, 30...
- Cutout, 301... - Uncut portion, 40...
・Cutter, 50... Recording surface, 60... Pen carriage, 70... Groove, 80... Drive means, 9
0...Host combination Niichiyo, 100...cpu.

Claims (1)

[Scope of Claims] 1. With the cutter attached to the pen carriage pressed against the sheet mounted on the recording surface so as to be movable up and down with a predetermined writing pressure, move the pen carriage relative to the sheet in an X- A plotter that cuts the sheet by moving it in the Y direction, the plotter forming cuts on the sheet by decreasing the pen pressure of the cutter pressed against the sheet for a minute time at regular time intervals. In this method, when forming a cutout having an edge-like corner portion on the sheet, the cutout is formed on the sheet so that an uncut portion of the cutout is formed at the corner portion. A cutout formation method using a cutting plotter. 2. Cutting by the cutting plotter according to claim 1, wherein when forming an uncut portion of the cutout at a corner portion, etc., the pen pressure of the cutter is reduced to such an extent that a groove is formed on the surface of the uncut portion of the cutout. Eye formation method.