JP3345613B2 - Applique embroidery structure and embroidery data creation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery structure for applique and a method for creating embroidery data for embroidering.

[0002]

2. Description of the Related Art As shown in FIG. 15, there is an applique cloth piece 52 having an S-shaped curve 55 having an inflection point 51 as an outline. When the applique cloth piece 52 is sewn to the fabric 53, the Satin stitch 5 for sewing the S-shaped curve 55 is sewn.
Generally, the stitch direction of the fourth curved portion 54a is set as follows.

As shown in FIG. 16, the same number of division points d56 and d57 are set in the inner peripheral data D56 and outer peripheral data D57 for forming the satin stitch corresponding to the inner peripheral edge and the outer peripheral edge of the curved portion 54a. . Inner circumference division point d
56 are equally spaced, and the outer dividing point d57 is also equally spaced. The distance between the inner circumference division point d56 and the outer circumference division point d57 is not the same due to the difference in the length of the inner and outer circumferences in a simple curve, but is different in the S-shaped curve 55. Are substantially the same as each other. Then, the dividing point d56 on the inner periphery and the dividing point d57 on the outer periphery are sequentially connected by a line 58, and the stitch direction of the curved portion 54a is set in the same direction as the line 58, thereby generating the satin stitch data D59.

[0004]

However, in this embroidery structure, as shown in FIG. 15, the stitch direction of the curved portion 54a is extremely inclined with respect to the S-shaped curve 55, or the stitch length is abnormally long. Or the portion 54ax of the curved portion 54a protrudes from a predetermined stitch area, and the appearance has deteriorated. This is because the interval between the inner circumference division point d56 and the outer circumference division point d57 is substantially the same, despite the difference in the radius of curvature between the inner and outer circumferences as shown in FIG. This is because the two dividing points d56 and d57 are considerably displaced on the way and are simply connected by the line 58.

[0005] An object of the present invention is to solve the above-mentioned problem, and to provide an applique cloth piece having a curve with an inflection point with a natural seam direction, a short seam length, and a short seam. An object of the present invention is to provide an applique embroidery structure and an embroidery data creation method that can be sewn with satin stitches that do not protrude from a predetermined stitch area, thereby improving the appearance.

[0006]

To achieve the above object, an applique embroidery structure of the present invention comprises an applique cloth piece having a curve having an inflection point, a cloth, and an applique cloth piece attached to the cloth. With a satin stitch for sewing, the stitch direction of the curved portion of the satin stitch to sew a curve is a direction perpendicular to the curve at a specific stitch separated by a certain number of stitches, and between the specific stitches. Has a structure that is gradually changed from the stitch direction of one specific stitch to the stitch direction of the other specific stitch.

Further, according to the method for creating applique embroidery data of the present invention, a step of inputting contour data of an applique cloth having a curve having an inflection point, and generating inner and outer peripheral data along the contour data And the step of creating satin stitch data for sewing the applique cloth to the fabric from the inner circumference data and the outer circumference data, the step of creating satin stitch data,
Satin stitch curve that extends a dividing line in a direction perpendicular to the contour data from specific point data separated by a certain number of points among the internal point data that constitutes the contour data of the curve to the inner circumference data and outer circumference data, and sew the curve The stitch direction of the part was set in the same direction as the dividing line at the dividing line, and between the dividing lines, the direction was gradually changed from the direction of one dividing line to the direction of the other dividing line.

Here, means for inputting contour data include a digitizer (including a tablet which is a designation of a small digitizer), an image scanner, a touch panel,
Examples include a light pen, a mouse, and a track ball. A microcomputer can be used as means for creating the inner circumference data, the outer circumference data, and the satin stitch data.

[0009]

According to the applique embroidery structure of the present invention, in the applique cloth piece having a curve having an inflection point, the stitch direction of the curved portion of the satin stitch to sew the curve is always substantially perpendicular to the curve. Since the direction is maintained, a natural feeling can be given and the stitch length can be shortened. Further, the stitch does not protrude from the planned stitch area. By these actions, the appearance of the curve having the inflection point of the applique can be improved.

Further, according to the applique embroidery data creating method of the present invention, it is possible to create satin stitch data capable of realizing the applique embroidery structure, and the satin stitch data is input to a control device of the embroidery sewing machine. You.

[0011]

EXAMPLES Hereinafter, examples embodying the present invention will be described.
This will be described with reference to FIGS. First, an apparatus for creating cutting data and embroidery data used in this embodiment will be described with reference to FIG. 1. The center of the creating apparatus is a control device 1, which includes a CPU, a ROM, a RAM, a connection bus, A microcomputer including an input / output interface and the like is used. The controller 1 is connected to a digitizer 2 and a keyboard 3 as input devices, a display 4 as a display device, an XY plotter 5 as a printing device, and a floppy disk device 6 as an external storage device. The tape puncher 7 is connected.

The configuration of the data creating device is merely an example. For example, a hard disk device (including a removable type), a magnetic tape device, a magnetic card device, a magneto-optical disk device, an optical disk device, and an I / O device are used as external storage devices.
A C card device or the like can also be used.

Numeral 10 is a cutting machine for cutting a piece of applique cloth, a board surface 11 for setting the cloth, a heat cutter 12 which is driven in the X-Y direction and is driven back and forth in the Z-axis direction as required. An operation key 13 and a floppy disk device 14 as an input device are provided. This floppy disk device 14 has a floppy disk F on which the cutting data is recorded by the floppy disk device 6.
D1 is inserted.

In addition to the heat cutter, for example, a cutting blade, a laser cutting device, a liquid jet cutting device, or the like can be used. When the external storage device other than the floppy disk device is used for the data creation device, the external storage device corresponding to the external storage device is also used for the cutting machine. Further, the data creation device and the cutting machine 10 can be connected by a transmission cable or a wireless transmission device, and the cut data created by the data creation device can be directly transmitted to the cutting machine 10.

Reference numeral 20 denotes an embroidery sewing machine for embroidering an applique cloth piece onto a cloth, and a plurality of embroidery heads 21 for vertically driving a needle through which an upper thread is passed, and a bed 22 in which a shuttle and a bobbin are installed. And an embroidery frame 24 for spreading the fabric 23
And a drive device 25 for driving the embroidery frame 24. A movable carriage 27 with casters 26 supports a sewing machine control device 30 that can be arranged on a table 28. The sewing machine control device 30 includes a control panel 31, a keyboard 32, a display 33, a floppy disk device 34 as an input device built in the control panel 31, and the like. The floppy disk FD2 on which the embroidery data is recorded by the floppy disk device 6 is inserted into the floppy disk device.

In the case where the external storage device other than the floppy disk device is used for the data creating device, the external storage device corresponding to the external storage device is replaced with the sewing machine control device 30.
Also used for. Further, the data creation device and the sewing machine control device 30 are connected by a transmission cable or a wireless transmission device,
The embroidery data created by the data creation device can be directly transmitted to the sewing machine control device 30.

The method of creating cutting data and embroidery data in this embodiment proceeds according to the procedure shown in FIG.
A dotted line with an arrow in FIG. 2 indicates a data flow. Hereinafter, this procedure will be described in detail.

(1) Input of contour data of applique cloth piece As shown in FIG. 3 (a), for example, a pattern 8 depicting a deformed C-shape is pasted on the board surface of the digitizer 2. Curve points R1,..., R1 constituting the contour of the modified C-shape
9 is picked up by a pointing device 47 such as a button cursor, a stylus pen or the like,
The modified C-shaped contour data D1 is input. As shown in FIG. 3 (b), on the display 4, points that are sequentially picked up are displayed with a line connecting them.

In this input, the first curve composing point R1
Is picked up as a start point S and a point slightly over the last curve composing point R19 (the same point as R1) is picked up as an end point E, so that the initial cutting section and the final cutting section are always It is preferable because it crosses and there is no uncut portion.

(2) Automatic Creation of Cutting Data The controller 1 automatically creates the modified C-shaped cutting data D2 as shown in FIG. 4 from the contour data D1, and this cutting data D2 is stored in a floppy disk drive. 6 is recorded on the floppy disk FD1.

(3) Automatic Creation of Embroidery Data Next, the control device 1 automatically generates the modified temporary C-shaped positioning temporary sewing data D3 necessary for the arrangement of the applique as shown in FIG. 5 from the contour data D1. create. The temporary sewing data D3 for positioning is recorded on the floppy disk FD2 by the floppy disk device 6.

Next, the control device 1 automatically creates inner peripheral data D4 along the inside of the contour data D1 as shown in FIG. 6 from the contour data D1.

Next, the control device 1 automatically creates modified C-shaped fixing stitch data D5 required for fixing the applique cloth as shown in FIG. 7 from the contour data D1 and the inner circumference data D4. I do. In this embodiment, the E stitch data is created based on the stitching direction of the E stitch and the number of stitches from one stitch to the next stitch, which have been input from the keyboard 3 to the control device 1 in advance. However, the lock stitch data is not limited to the E stitch. For example, it is also possible to create the lock stitch data D5 by another type of stitch as shown in FIG. These set stitch data D5 are supplied to the floppy disk F by the floppy disk device 6.
Recorded in D2.

Next, the control device 1 automatically creates outer peripheral data D6 along the outside of the contour data D1 as shown in FIG.

Next, the control device 1 obtains the outline data D1, the inner circumference data D4, and the outer circumference data D6 from FIG.
The satin stitch data D7 as shown in FIG. The satin stitch data D7 is data for a satin stitch 40 for sewing the applique cloth 16 to the cloth 23 as shown in FIG. The right side of the contour of the applique cloth 16 has an inflection point 17 at the center.
The S-shaped curve 18 is sewn at the curved portion 40 a of the satin stitch 40. The creation of the satin stitch data D7 proceeds according to a procedure as shown in FIG. 11, and this procedure will be described in detail below.

(A) As shown in FIG. 10B, a large number of internal point data d1 constituting the contour data D1 in the curved portion (in the present embodiment, this internal point data d1
As a result, the outline data D1 is replaced with straight line data. ), For example, from the specific point data d1x separated by 10 points (this fixed point number is preferably about 5 to 20) to the inner circumference data D4 and the outer circumference data D6, and a dividing line in a direction perpendicular to the contour data D1. Extend 36.

(B) The direction of the stitch of the curved portion 40a is defined by the dividing line 3
In step 6, the satin stitch data D7 is created in the same direction as the dividing line 36. The stitch length is from the inner circumference data D4 to the outer circumference data D6.

(C) The stitch direction of the curved portion 40a is determined by dividing line 3
Satin stitch data D7 is created by setting so as to gradually change from the direction of one dividing line 36 to the direction of the other dividing line 36 between the six. For example, the same number of division points d4 and d6 are set in the inner circumference data D4 and the outer circumference data D6 between the separation lines 36, respectively. And the dividing point d of both
4 and d6 are sequentially connected by a line 37, and the stitch direction of the curved portion 54a is set in the same direction as the line 37. The stitch length is from the inner circumference data D4 to the outer circumference data D6.

(D) Satin stitch 4 other than curved portion 40a
For 0, the same procedure as in (a), (b) and (c) above, or
In the same procedure as the conventional structure, the satin stitch data D
7 is created.

The satin stitch data D7 created as described above is recorded on the floppy disk FD2 by the floppy disk device 6.

As described above, the floppy disk FD1 on which the cutting data D2 is recorded, the temporary sewing data D3, the stop sewing data D5, and the satin stitch data D
7 and a floppy disk FD2 on which three embroidery data are recorded. This floppy disk FD
The appliqué is formed as follows using the data of FD1 and FD2 and the device.

(A) Cutting of Applique Cloth As shown in FIG. 1, the applique cloth piece 15 is set on the board surface 11 of the cutting machine 10, and the floppy disk FD 1 is inserted into the floppy disk device 14. When the cutting machine 10 is operated, the heat cutter 12 contacts the cloth 15 and is driven in the X and Y directions based on the cutting data D2, so that the deformed C-shaped applique cloth 16 based on the cutting data D2 is heated. Be blown.

(B) Embroidery sewing of the applique cloth piece As shown in FIG. 1, the cloth 23 is spread on the embroidery frame 24 of the embroidery sewing machine 20, the floppy disk FD2 is inserted into the floppy disk device 34, and the embroidery sewing machine is inserted. When the sewing machine 20 is operated, first, the needle of the embroidery head 21, the shuttle of the bed 22, and the embroidery frame 24 based on the temporary sewing data D3 for positioning.
And so on, a modified C-shaped temporary stitch 45 is formed in the fabric 23 as shown in FIG.

Along with the temporary stitches 45, the applique cloth 16 is attached to the cloth 23 with an adhesive or the like.

When the embroidery sewing machine 20 is operated again,
The needle of the embroidery head 21, the shuttle of the bed 22, the embroidery frame 24, etc. are driven based on the lock stitch data D5.
As shown in FIG. 7, the lock stitch 46 is formed, and the applique cloth 16 is fixed to the cloth 23 by sewing.

Subsequently, when the embroidery sewing machine 20 is operated, the embroidery head 2 is operated based on the satin stitch data D7.
Since the first needle, the shuttle of the bed 22 and the embroidery frame 24 are driven, a satin stitch 40 is formed as shown in FIG. 14, whereby the applique cloth 16 is sewn to the cloth 23 by embroidery.

Here, the stitch direction of the curved portion 40a of the satin stitch 40 to which the S-shaped curve 18 is sewn is perpendicular to the S-shaped curve 18 at a specific stitch 41 separated by a certain number of stitches. Between the specific stitches 41, the stitch direction of one specific stitch 41 gradually changes from the stitch direction of the other specific stitch 41. For this reason, the stitch direction of the curved portion 40a always maintains a substantially perpendicular direction to the S-shaped curve 18, so that a natural feeling can be given and the stitch length can be shortened. Further, the stitch does not protrude from the planned stitch area. By these actions, the appearance of the applique in the S-shaped curve 18 can be improved.

It should be noted that the present invention is not limited to the configuration of the above-described embodiment, and may be embodied by appropriately changing the scope without departing from the spirit of the present invention.

[0039]

Since the applique embroidery structure and the embroidery data creation method of the present invention are configured as described above, the applique embroidery piece having a curve with an inflection point can be stitched with respect to the cloth. The stitches can be sewn with a satin stitch that is natural, has a short stitch length, and does not protrude from a predetermined stitch area, and thus has an excellent effect that the appearance can be improved.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an apparatus used in an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a method for creating cutting data and embroidery data according to the present embodiment.

FIG. 3A is an explanatory view showing an outline data input process;
(B) is a front view showing the display display at that time.

FIG. 4 is an explanatory diagram showing created cutting data.

FIG. 5 is an explanatory diagram of created temporary sewing data for positioning.

FIG. 6 is an explanatory diagram showing created inner circumference data.

FIG. 7 is an explanatory diagram showing the generated stitch sewing data.

FIG. 8 is an explanatory diagram showing another example of the lock stitching data.

FIG. 9 is an explanatory diagram of created outer circumference data.

FIG. 10A is an explanatory diagram showing created satin stitch data, and FIG. 10B is an explanatory diagram showing a creating method thereof.

FIG. 11 is a flowchart showing a procedure for creating satin stitch data.

FIG. 12 is a plan view of a fabric on which temporary stitches are formed.

FIG. 13 is a plan view of a fabric in which an appliqué cloth piece has been sewn by sewn stitching.

FIG. 14 is a plan view of a fabric (applique) obtained by embroidering an applique cloth piece by satin stitching.

FIG. 15 is a partial plan view of an applique of a conventional structure.

FIG. 16 is an explanatory diagram showing a method for creating satin stitch data of the applique.

[Explanation of symbols]

16 Applique cloth piece 17 Inflection point 18 S-shaped curve 23 Cloth 36 Separation line 40 Satin stitch 40a Curved portion 41 Specific stitch D1 Outline data d1 Internal point data d1x Specific point data D2 Cutting data D3 Positioning temporary sewing data D4 Inner circumference Data D5 Stop sewing data D6 Outer circumference data D7 Satin stitch data

Claims (2)

(57) [Claims] 1. An applique cloth piece having a curve with an inflection point, a fabric, and a satin stitch for sewing the applique cloth piece to the cloth, and a satin stitch curve for sewing the curve. The stitch direction of the portion is perpendicular to the curve in the specific stitch separated by a certain number of stitches, and between the specific stitches, the stitch direction from one specific stitch to the other specific stitch is The embroidery structure of the applique, characterized by a gradual change to the seam direction. 2. A step of inputting contour data of an applique cloth piece having a curve with an inflection point; a step of creating inner and outer circumference data along the contour data; Creating satin stitch data for sewing the applique cloth to the fabric from the data, wherein in the step of creating the satin stitch data, a predetermined point of the internal point data constituting the contour data of the curve is included. From the specific point data separated by a few, to the inner circumference data and the outer circumference data, extend the dividing line in the direction perpendicular to the contour data, and sew the curved line of the satin stitch to sew the curve in the dividing line. Is set in the same direction as the dividing line, and gradually changes from the direction of one dividing line to the direction of the other dividing line between the dividing lines. Embroidery data creation method for applique, characterized by setting as follows.