JPH048390A - Method for creating embroidery picture data of computer embroidery sewing machine - Google Patents

Abstract

PURPOSE:To unify a creating method of embroidery data so as to improve reproduceability of the embroidery data, obtained even when an input is repeated relating to an equal original picture, while shortening a data creation time by dividing a contour line of a matrix picture into a plurality of segments suited for embroidery and storing each segment as the embroidery data in accordance with a predetermined rule. CONSTITUTION:First, a reference point 0 is determined in a suitable position in a matrix picture plane of showing a matrix picture. Next, an embroidery picture processing start point P0 is set to one end of the first segment in the matrix picture by setting a point of distance R nearest(or farthermost) of lines for constituting each matrix picture from the reference point 0 as the embroidery picture processing start point P0. For instance, in a wood A, a start point A1 is determined by setting the point P0 in the shortest distance from the reference point 0. Next, a segment is selected by setting l0 to segments A1, A2 and determining l1 to segments A2, A3 with a mininal clockwise directional angle relating to a perpendicular line. Hereinafter, segments A3, A4, A4, A5,...A2, A1 are successively determined to perform data processing. ln this way, the segment, divided from the start point, is changed into an embroidery data by automatically determining the start point in a predetermined distance from the reference point, so that an equal control data can be created by determining the start point to always agree with an equal original picture even when automatic creation is repeated by any number of times.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for creating embroidery image data in a computerized embroidery machine.

(Prior Art) Control data for embroidery that can be automatically sewn by a conventional computerized embroidery machine needs to be created in advance, and the creation method can be either manual or automatic.

With manual methods, the outline of the line drawing is divided into appropriate lengths using a digitizer, etc., taking into account the quality of the embroidery shape, and the data is input into the storage unit as control data, so it takes a long time to register. Ta.

An automatic method, such as the one described in Japanese Patent Application Laid-Open No. 1-170494, analyzes an original image stored as line drawing data and embroiders a plurality of line segments of a length suitable for line drawing embroidery and the intersection points of both ends of each line segment. There are devices that automatically input image data into the storage unit, but if you repeat the input for the same original image,
Differences occurred in the creation of embroidery image data, and reproducibility was low.

(Problems to be Solved by the Invention) The present invention unifies the method of creating embroidery data used in computerized embroidery machines, thereby shortening the data creation time and eliminating the need for repeated input for the same original image. The goal is to make the obtained embroidery data highly reproducible.

(Means for Solving the Problems) The present invention creates embroidery data used in a computerized embroidery sewing machine by converting an original image composed of outlines displayed on an electronic display unit such as a liquid crystal or a cathode ray tube onto the display unit. A predetermined rule based on a point set at an appropriate position, for example, a line segment of an appropriate length in a certain direction on a line drawing starting from a part of the line drawing that is closest or farthest from the reference point. The coordinate position of each divided line segment is stored in the storage unit as control data, and the process is gradually progressed.
At branching points in the process, one line segment is selected from among multiple line segments and converted into data according to a predetermined rule, thereby reducing the creation time of embroidery image data and repeatedly converting the same line drawing into embroidery data. This also allows for reproducibility.

be.

(Function) The present invention uses a computer embroidery machine to segment a contour line made up of line drawing data stored in a line drawing-like matrix drawing from an original drawing into a plurality of line segments, and at the same time divides the contour line into a plurality of line segments and sets a predetermined reference point in a part of the matrix screen. A start point for embroidery processing is determined in a line segment located at a predetermined distance from the start point, and each line segment is automatically processed as embroidery image data in the order of stitch configuration according to a predetermined rule from the start point. The present invention relates to a method, and the present invention further relates to a computer embroidery machine that uses a pattern selection device to select a pattern on a part of a contour line and on a surface surrounded by the contour line, which is composed of line drawing data in which an original image is stored as a line drawing-like matrix image. The present invention relates to an embroidery image process in which a selected pattern is added and a contour line is divided into lines, and an embroidery image process is performed on the additional pattern.

(Example) An embodiment of the present invention will be described below.

First, the structure of a computerized embroidery sewing machine will be outlined with reference to FIGS. 1 and 2.

3 is a sewing machine, and a needle bar 3 is supported on an arm frame 2 of the sewing machine so as to be movable up and down, and a needle 4 is attached to the lower end of the needle bar. Reference numeral 5 denotes a head machine frame, which is equipped with a thread loop capture device (not shown), and the thread loop capture device and the needle 4 cooperate to intertwine the upper and lower threads to form a stitch.

Reference numeral 6 denotes a pattern selection operation section, which is mounted on the front wall of the arm machine frame 2 together with a display device 7 for displaying the selected pattern.

The display device 7 consists of a transparent touch panel 7' on the front side and a liquid crystal display plate 7'' on the back side, and a layer is provided below the transparent touch panel 7' at a position corresponding to a matrix-like pressure sensitive element where a plurality of vertical and horizontal signal lines intersect. The liquid crystal display panel 7'' is positioned so that the display is performed.

The display device 7 displays figures read by an image scanner (described later) and patterns selected by the pattern selection operation section 6.

Reference numeral 8 denotes an embroidery frame, which is covered with cloth and is detachably attached to an embroidery frame drive mechanism 10 in a machine frame 9 provided below the bed machine frame 5.

Reference numeral 11 is an image scanner electrically connected to the sewing machine 1, which traces over the original image 13 placed on the table 12 to read the pattern, and then reads the pattern! The first storage section RA provided in the
The data is stored in M14 via the arithmetic unit CPU15. A second storage section I6 is provided within the sewing machine 1, and stores drive control data and the like for configuring various patterns selected by the pattern selection section 6.

Reference numeral 17 denotes an input/output port which is interposed between the arithmetic unit 15 and the image scanner 11 or the pattern selection operation section 6.

Next, we will discuss the automated manual production of line drawing-like original drawings shown in FIG.

It is desirable that the original image can be selected using a touch panel with a matrix pressure-sensitive element.

The original picture 13 shown in FIG. 3 consists of two concrete figures, a tree (A) and a house (B). When the original image is traced by the image scanner 11, the original image data is calculated by the arithmetic unit 15 and stored in the RAM 14i as matrix image (line drawing) data.

The matrix image data stored in the RAM is automatically calculated based on a predetermined law as described later, converted into embroidery data, and then stored in the storage unit again.

If you want to decorate each line segment of the embroidery image displayed on the display device 7, press the desired position of the line segment displayed on the display device 7 while pressing the header pattern selection operation section 6. By performing selection operations, various decorations can be added.

By instructing to press a desired line segment of the figure (tree (A)) displayed on the display device 7 in FIG. The sewing machine is stopped at 8 points by instructing to press 8 selected points among the line segments at the end of the pattern and pressing pause ff120, and the thread color change operation is performed at 8 points. It is possible to apply

In addition, for the figure and house (B), press the surfaces C and D surrounded by a plurality of line segments, respectively, and instruct the satin stitch operation section 21 and the fill stitch operation section 22 of the pattern selection operation section.
embroidery image data consisting of coordinate data for each figure, tree (A), and house (B) is automatically created and stored.

Next, we will describe a method for automatically creating control data for embroidery image composition in which the stitch composition order is determined from a matrix image in which a line image is composed of a plurality of line segments displayed on the matrix screen display device 7. .

First, a reference point 0 is determined at an appropriate position in a matrix screen showing a matrix image. The reference point is usually determined by the provider (producer) before providing it to the user (No. 5
(see figure).

Next, the closest point (or the farthest distance (R)) from the reference point 0 among the lines constituting each matrix image is set as the embroidery image processing start point P0, and the embroidery image processing start point P is set as the first point of the matrix image. One end of the line segment.

For example, in the figure tree (A), it is A, and in the figure artist (B), it is B.
Set to 1.

Embroidery image processing starting point P. Once ρ is determined, a process is performed to determine the stitch configuration order from the starting point, and first the line segment ρ is determined. is selected.

Ω. is a line segment on the matrix rain that has not been subjected to embroidery image processing, and is the starting point P. The starting point is the starting point and the ending point is a free end (for example, At in Figure 5), or a branching point (for example, At in Figure 5), or a point that coincides with the starting point of the embroidery image processing (for example, in Figure 6). B3.B3 of B41,
The thick lines are the slanted lines (processed line segments) that make an angle with the vertical line passing through the starting point and are selected in the order of clockwise rotation.
the one with the smallest angle). In the case of a curved line, it is determined by the inclination angle θ in a range T limited to a certain dimension (see FIG. 7).

Next, a line segment is selected.

, is a line segment that has not been embroidered on the matrix rain, and the starting point is a branch point and the end point is the next branch point, or a vertical line that has a matching point with a free end or an embroidered line segment and passes through the starting point. The one that has the smallest clockwise angle with the line.

Next, line segment p is selected. , is a line segment on the matrix rain, and the starting point is one manually revised branch point from the free end of the line segment that was last processed with embroidery drawings or the matching point with the line segment that has been processed with embroidery drawings. The end point is a branch point, a free end, or a matching point with the embroidery image processed line segment, and the clockwise angle made with the vertical line passing through the starting point is the smallest.

When embroidery image data is created according to the above rules, in the figure tree (A) shown in FIG. 5, the point P is the shortest distance from the reference point 0. is set, and the starting point A1 is determined.

Next, select Ω as a line segment. The setting is line segment A,,A.

determined.

Next, the setting 91 is determined to be the line segments A, . . . A3 that have the smallest clockwise angle with respect to the vertical line.

11, A, , A13 is determined.

This order determination process is performed by the program shown in FIG.

Next, in the graphic house (B) shown in FIG. 5, the starting point P is determined from the reference point 0. is set, and the starting point B is determined.

Next, line segment B,,Bt,B,,B,,B,,B,%B,,
B,,B,B,,B,,B3,B g,B 7,B
7. B,,B,,B,,B a,B s,B ll
+ B I[lq B IO+ B + □, BIl
, Biffi, B.

2. B5, B, . . . B7 are determined and data processed one after another.

The present invention automatically converts a matrix drawing into an embroidery drawing according to the above-mentioned rules.A reference point is determined, and a starting point at a distance based on a predetermined law from the reference point is automatically converted. Since the line segments determined and separated from the starting point are converted into embroidery data, the starting point always matches for the same original image, so no matter how many times automatic creation is repeated, the same control data will be created. It will be done.

(Effects) Since the present invention allows embroidery images to be created using the method described above, as long as the original matrix image is the same, there will be no difference in control data due to the difference in operation even if the operator is different. Therefore, it is possible to repeatedly create control data for the same embroidery image, resulting in high reproducibility accuracy, which is highly effective in practice.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a usage state diagram of a computerized embroidery sewing machine showing an overview of the present invention, FIG. 2 is a block diagram for implementing the present invention, and FIG. 4 is an embroidery image displayed on the display unit of the present invention; FIG. 5 is a diagram showing the order in which control data for the embroidery image of the present invention is determined; and FIG. 6 is an illustration of the original image used as an embodiment of the invention. A diagram showing the main parts of the invention, FIG. 7 is a diagram showing the main parts of the invention,
FIG. 8 is a diagram showing a creation program of the present invention. Figure 1 Figure 2 Patent applicant: Janome Sewing Machine Industry Co., Ltd.

Claims (2)

[Claims] (1) A needle that moves up and down, a thread ring capture device that works with the needle to form a stitch, an embroidery frame drive mechanism that drives an embroidery frame with cloth stretched over it, and an embroidery frame drive mechanism that drives the embroidery frame. In a computerized embroidery machine that is equipped with a storage unit that stores control data to be controlled and a display device that can display an original drawing as a line drawing-like matrix drawing, a plurality of contour lines suitable for embroidery are used to display the outline of the matrix drawing that can be stored as line drawing data. The embroidery image is divided into line segments, and the starting point for embroidery image processing is determined at one of the line segments based on a predetermined reference point in a part of the matrix image, and each line is divided from the starting point according to a predetermined rule. A method for creating embroidery image data for a computerized embroidery machine that automatically processes embroidery images by storing them as embroidery image data. (2) A needle that can be moved up and down, a thread hoop capture device that cooperates with the needle to form a stitch, an embroidery frame drive mechanism that drives an embroidery frame with cloth stretched over it, and an embroidery frame drive mechanism that drives the embroidery frame. A computerized embroidery sewing machine equipped with a storage unit for storing control data, a display device capable of displaying an original drawing as a line drawing-like matrix drawing, and a pattern selection device capable of selecting a plurality of patterns including selection of functions. The pattern selected by the pattern selection device is added to an appropriate line of the outline of the matrix image that can be stored as data, or to a surface surrounded by the outline, and is stored as embroidery image data of the outline, and the pattern is selected. A method for creating embroidery image data for a computerized embroidery sewing machine that processes the storage of device patterns as embroidery image data.