JPH03139387A - Embroidery data-making device for embroidering machine - Google Patents

Abstract

PURPOSE:To easily make an embroidery data for a zigzag stitch without overlap at each of corner parts, by providing as process wherein, after a location data is received from an operation device, the location data of four points for each of a pair of a first and second virtual points is found as an embroidering block data of a four-cornered block obtained connecting the four points and is stored in the order specified. CONSTITUTION:In RAMs 10 in an embroidery data-making device 1, both a location data for a first virtual point line stored in a first virtual point line- location data storage 17 and a location data for a second virtual point line stored in a second virtual point line-location data storage 18, are alternately read-out in order. A location data for four points which consist of both a pair of first virtual points adjoining mutually and a pair of second virtual points corresponding to them, is respectively found as an embroidery block data for a four-cornered block area obtained connecting these four points. The order of a figure-prescribing line, i.e., a zigzag stitch, stored in a figure-prescribing line data storage 14, is stored in an embroidery block data storage 19.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an embroidery data creation device for an embroidery sewing machine, and in particular, to a device for creating embroidery data for an embroidery sewing machine, and particularly for dividing an area to be sewn into a plurality of block areas to form an embroidery pattern. Concerning what was done.

[Prior art]

Generally, devices are already known that create embroidery data for embroidery machines that embroider folded line patterns or polygonal frame structures on work cloth using zigzag stitches.

For example, JP-A-63=206275 and JP-A-63
Publication No. 212394 discloses that zigzag stitching is performed inside the shape defining line defined by the dot sequence based on dot sequence data that defines the shape of a polygon stored in advance in a storage device and set zigzag stitch width data. An embroidery data creation device is described that automatically creates embroidery data for zigzag stitch embroidery using a sewing width of width data and performs embroidery.

In addition, Japanese Patent Publication No. 60-42740 discloses that for each of a large number of embroidery patterns, the area where the embroidery pattern is formed is divided into a plurality of triangular or square blocks, and the position data of the vertices of each block is determined in advance. Store the input,
An embroidery data creation device is described that automatically calculates sewing point position data for each pronk based on these vertex position data and zigzag stitch width data and stitch density data input and set during embroidery. has been done.

[Problems to be Solved by the Invention] As mentioned above, in Japanese Patent Laid-Open No. 63-206275, etc., the embroidery pattern with a predetermined zigzag stitch width is formed inside the shape defining line. There is a problem in that the zigzag stitch inside one shape defining line segment and the zigzag stitch inside the adjacent shape defining line segment overlap, which is unfavorable in terms of appearance.

In the embroidery data creation device disclosed in the latter publication, it is necessary to create and input vertex position data for multiple blocks obtained by dividing the area of each embroidery pattern, which requires a great deal of effort and cost to create the data. There's a problem.

SUMMARY OF THE INVENTION An object of the present invention is to provide an embroidery sewing machine that can create embroidery data such that zigzag stitches do not overlap at each corner of a polygonal, polygonal, or curved embroidery pattern, and that can easily create input data. The objective is to provide embroidery data creation equipment.

[Means to solve the problem]

An embroidery data creation device for an embroidery sewing machine according to the present invention is an embroidery data creation device for an embroidery sewing machine that forms an embroidery pattern consisting of zigzag stitches on a workpiece cloth by changing the relative position of a sewing needle that is moved up and down and the workpiece cloth. An embroidery data creation device that creates embroidery block data for dividing a region of data into which a zigzag stitch is to be applied into a plurality of block regions, the shape of the embroidery region having a predetermined zigzag width on which a zigzag stitch is performed. storage means for storing point sequence data representing the position of the dot sequence on the shape defining line defining the shape and zigzag stitch width data representing the zigzag stitch width; receiving the dot sequence data and the zigzag stitch width data from the storage means; Determine the position of a first imaginary point array defining a first imaginary line parallel to the shape defining line defined by the point array and a predetermined distance away from this shape defining line; calculation means for determining the position of a second virtual point sequence defining a second virtual line that is spaced from the first virtual line by a staggered stitch width; and receiving position data of the first virtual point sequence and the second virtual point sequence from the calculation means. , a rectangular block area obtained by connecting data on the positions of four points each consisting of a pair of mutually adjacent first virtual points and a corresponding pair of second virtual points, and connecting these four points. Embroidery block data is determined and stored in a predetermined order in which zigzag stitching is performed.

[Effect]

In the embroidery data creation device for an embroidery sewing machine according to the present invention, the storage means stores information indicating the positions of a series of dots on a shape defining line that defines the shape of an embroidery area having a predetermined zigzag width on which zigzag stitching is to be performed. Point sequence data and zigzag stitch width data representing the zigzag stitch width are stored. The calculation means receives the point sequence data and the zigzag stitch width data from the storage means, and defines a first virtual line that is parallel to the shape defining line defined by the dot sequence and is a predetermined distance away from the shape defining line. The position of a virtual point sequence is determined, and the position of a second virtual point sequence that defines a second virtual line that is parallel to the first virtual line and spaced from the first virtual line by a staggered stitch width is determined.

The block data determination storage means receives the position data of the first virtual point string and the second virtual point string from the calculation means, and first, each pair of mutually adjacent first virtual points and each pair of corresponding first virtual points are Data on the positions of each of the four points consisting of two virtual points are obtained as embroidery block data of a rectangular block area obtained by connecting each of these four points, and then these multiple embroidery block data are stitched in a predetermined order in which a zigzag stitch is applied. memorize it.

[Effects of the Invention] According to the embroidery data creation device for an embroidery sewing machine according to the present invention, as described above, the storage means, the calculation means, and the block data determination storage means are used to create an embroidery pattern in a staggered manner. The area to be sewn is divided into a plurality of block areas that do not overlap with each other, position data of four points that define each block area are determined, and the data of these block areas are stored in a predetermined order. Therefore, it is possible to create embroidery block data in which zigzag stitches do not overlap at the corners of a polygonal, polygonal, or curved embroidery pattern. In addition, it is only necessary to manually store the dot sequence data representing the position of the dot sequence that defines the shape of the stitch VjI area and the zigzag stitch width data representing the zigzag stitch width, which significantly reduces the labor and cost required to create input data. can be reduced.

[Examples] Examples of the present invention will be described below with reference to the drawings. This embodiment is a case in which the present invention is applied to an embroidery data creation device for creating embroidery data for forming a polygonal, polygonal, or curved embroidery pattern using zigzag stitches.

As shown in the block diagram of FIG. 1, this embroidery data creation device l basically consists of an operation panel 2 and a CRT type or LC
It is equipped with a display mechanism 3 having a D-type display and a control device 4, and the control device 4 has a CPU 5, an input/output interface 7 connected to the CPU 5 via a bus 6 such as a data bus, a ROM 8, and a RAM 10. It consists of

The operation panel 2 connected to the human output interface 7 has a reference point X-Y that determines the position of the shape defining point of the folded line or polygon that defines the shape of the folded line or polygonal embroidery pattern.
As the origin of coordinates, an X coordinate key, an X coordinate key, and a numeric keypad for inputting coordinate data created in advance with graph paper, etc., and a predetermined length (for example, about 1 mm) when applying zigzag stitches.
Stitch density setting key for setting stitch density data, which is the number of threads per stitch, zigzag stitch width setting key for setting zigzag stitch width data W, enter key for inputting each setting data into the control device 4, polygon A closed loop command key that creates a closed loop by applying zigzag stitches from the final shape defining point to the first shape defining point like the shape, and an open loop command key that does not perform zigzag stitching from the final shape defining point to the first shape defining point. An embroidery data creation start key for instructing the start of creation of embroidery data is provided. The operation panel 2 is provided with a digital display that displays various numerical values set by operating a numeric keypad.

The ROM 8 of the control device 4 stores in advance a control program for controlling embroidery data creation.

RAM 10 stores point sequence data memory 11 that stores point sequence data of shape defining points manually entered by operating the X coordinate key, A stitch density data memory 12 that stores density data, a zigzag stitch width data memory 13 that stores zigzag stitch width data input by operating the numeric keypad and zigzag stitch width setting keys, and a shape regulation that stores calculated shape regulation lines. A line data memory 14, a first line data memory 15, a second line data memory 16, a first virtual point sequence position data memory 17 that stores position data of the first virtual point sequence, and a position data memory 17 that stores position data of the second virtual point sequence. a second virtual point sequence position data memory 18 for storing embroidery block data, an embroidery block data memory 19 for storing embroidery block data, and a first internal division point sequence position data memory 20.
, a second internal division point array position data memory 21, a sewing point position data memory 22 for storing sewing point position data, a loop flag memory 23 for storing a loop flag F, and various types for temporarily storing results calculated by the CPU 5. Memory is provided.

Next, a routine for controlling embroidery data creation performed by the control device 4 of the embroidery data creation device 1 will be explained based on the flowchart shown in FIG.

When you operate the embroidery data creation start key, this control f'fl
is started, initial settings such as clearing data in each memory 11 to 23 of RAMl0 are executed (Sl), and point sequence data, stitch density data, zigzag Sewing width data is input, and the loop flag F is set by operating the closed loop command key, and the loop flag F is reset by operating the open loop command key, and each of these data is stored in the predetermined memories 11-13 and 23 of RAM10. are respectively memorized (B2).

For convenience of explanation, it is assumed that the loop flag F is set. Next, the point sequence data in the point sequence data memory 1 is read out sequentially, and the X coordinate data and Y coordinate data (hereinafter simply referred to as position data) of the first shape defining point and the second
The first shape-defining line segment of the shape-defining line is calculated based on the position data of the second shape-defining point and the position data of the third shape-defining point. Based on this, the second shape defining line segment L2 is obtained, and the first shape defining line segment LH is similarly determined based on the position data of the Nth shape defining point and the position data of the first shape defining point. It is calculated and stored in the shape defining line data memory 14 (B3).

Note that the number of shape defining points is N. For example, as shown in Fig. 3, the point sequence data is a (Xa, Ya),
b (xb, yb), c (Xc, Yc), d (
When the four shape defining points (X, , Yd) are manually created in a closed loop, four shape defining line segments, , L, , L3, and L4 are obtained based on the shape defining points a to d, respectively.

Next, in order to obtain the first virtual line S, each shape defining line segment L
1 to LN, a first straight line parallel to each of the shape defining lines L1 to LH and spaced apart by half the distance of the zigzag stitch width data W in the zigzag stitch width data memory 13 is divided into each shape defining line, ~L, l. , and are unified on the left side and stored in the first straight line data memory 15 (B4). For example, as shown in FIG. 3, in order to obtain the first imaginary line S, a first straight line j that is parallel to each shape defining line segment L1 to L4 and separated by half the distance of the zigzag stitch width data W: m, , n1lPl are obtained, respectively.

Next, based on the first straight line data in the first straight line data memory 15, in order to define the first virtual line S, the intersection points A1, A2, . , respectively, and the first virtual point sequence position data memory 1
7 (B5).

For example, as shown in FIG. 3, in order to define the first virtual line S, the first straight line 2.・Intersection A2 of ml, first straight line m1
-n, intersection A3, first straight line n1p, intersection A4, first
Straight line p1 ・! Intersection A of 1.

are obtained as the first virtual point sequence.

Next, based on the first virtual line data, each first virtual line is minute S, ~S8
zigzag stitch width W parallel to and from each first virtual line segment S, ~SH
Second straight lines separated from each other by the same amount as the first straight line are collectively determined on the opposite side of the first straight line with respect to the shape defining line, and are stored in the second straight line data memory 16 (B6). For example, as shown in FIG. 3, in order to obtain the second virtual cotton T, each first straight line l, m
1. n Parallel to l+ p + and zigzag stitch width data W
A second straight line 2□, m 2. n 2 + P 2
are required respectively.

Next, based on the second straight line data in the second straight line data memory 16, the intersection points B1, B2, ...B, of mutually adjacent second straight lines are set as the second virtual line T to define the second virtual line T. Each point sequence is obtained and stored in the second virtual point sequence position data memory 18 (S7). For example, as shown in FIG. 3, in order to define the second temporary line T, the second straight line 12 m
2 intersection B2, second straight line m!・Intersection B3 of nl + second straight line n2 ・Intersection B4 of p2. Second straight line P2 ・2□
The intersection point B+ of is obtained as a second virtual point sequence.

Next, the position data of the first virtual point sequence stored in the first virtual point sequence position data memory 17 and the position data of the second virtual point sequence stored in the second virtual point sequence position data memory 18 are read out alternately and sequentially. (B8), and the position data of each of the four points, consisting of each pair of mutually adjacent first virtual points and each corresponding pair of second virtual points, is a square obtained by connecting each of these four points. The embroidery block data for each shape block area are obtained and stored in the embroidery block data memory 19 in the order of the shape defining lines stored in the shape defining line data memory 14, that is, in the order in which the zigzag stitch is applied (B9). For example, as shown in FIG. 3, rectangular first embroidery block data consisting of a pair of virtual points A1 and A2 and corresponding pairs of second virtual points B1 and B2, Rectangular second embroidery block data consisting of a pair of first virtual points A2 and A3 and a pair of second virtual points B2 and B3, each pair of first virtual points
Virtual point A3/A4 and a pair of second virtual points B3/B4
Rectangular third embroidery block data consisting of AI and each pair of first virtual points A4, AI and each pair of second virtual points B4,
The fourth quadrangular embroidery block data consisting of B and B are respectively obtained and stored in that order.

Next, based on the stitch density data in the stitch density data memory 12, the number M of threads for the line segment length of each shape defining line segment L1 to LH is calculated, and the number M of threads for each shape defining line segment, -L, is calculated. Each corresponding first virtual line segment S.

The position data of the first internal dividing point sequence obtained by dividing ~So into M times are obtained and stored in the first internal dividing point sequence position data memory 20 (SIO). For example, as shown in FIG. 4, to explain the first embroidery block data, the shape defining line segment,
The number M of threads is calculated based on the line segment length and stitch density data, and the first virtual line segment S1 obtained at the pair of first virtual points A1 and A2 is divided into M, and its first inner division is Point e+, ez,
ex, ea...e, -1 are obtained, respectively. Thereafter, in the same manner, each of the first virtual line segments 32 to 32 of the second embroidery block data, the third embroidery block data, and the fourth embroidery block data are
A first internal division point sequence is obtained for each of S4.

Next, each second virtual line molecule, -T, corresponding to each shape defining line segment L+-Ls is similarly based on each of the determined numbers of threads
The position data of the second internal division point sequence is obtained by dividing , into M for the time being, and is stored in the second internal division point sequence position data memory 21 (
Sll). For example, as shown in FIG. 4, the first embroidery block data is
The second virtual line molecule 1 obtained at the pair of second virtual points B1 and B2 is divided into M for the time being, and its second internal division point f I + f z,
f3. f4...fH-□ is obtained. below,
Similarly, each of the second virtual line molecules 2 to T of the second embroidery block data, third embroidery block data, and fourth embroidery block data
4, the position data of the second internal dividing point sequence is obtained.

Next, from the first embroidery block data to the Nth embroidery block data, the first
The position data of the first internal dividing point sequence and the position data of the second internal dividing point sequence including the virtual point sequence and the second virtual point sequence are read out alternately one by one, and the position data of these series of internal dividing point sequences are read out one by one. is stored in the sewing point position data memory 22 as sewing point position data (Si2), and this control ends.

Incidentally, when the open loop command key is operated and the loop flag F is reset, at B5 and 37, as shown in FIG. An orthogonal imaginary line q orthogonal to the straight line 12 is found, and the intersection A of this orthogonal imaginary line q with the first straight line 11 and the intersection B with the second straight line 22 are found, respectively. Also,
Similarly, for the final N-th shape defining point, the intersections between the orthogonal virtual line and the first straight line and the second straight line are determined.

As explained above, since the zigzag stitch area is divided into multiple embroidery block areas to form an embroidery pattern,
Each embroidery block area does not overlap with adjacent block areas, and when a zigzag stitch is performed using an embroidery sewing machine (not shown) based on a series of sewing point position data determined for each block area,
As shown in FIG. 5, a high-quality embroidery pattern in which the zigzag stitches at the corner portions do not overlap can be formed on the work cloth.

Furthermore, in the case of a curved embroidery pattern, when point sequence data of a large number of shape defining points that define the curve are entered manually, multiple small embroidery block areas are created based on these point sequence data, and these A zigzag stitch is applied based on a series of sewing point position data determined for each small embroidery block area.
A beautifully curved embroidery pattern is formed with no overlap in the zigzag stitches. Therefore, even if the embroidery pattern includes a curved corner portion with a small radius of curvature, this corner portion is similarly divided into a plurality of small embroidery block regions, so that a high quality embroidery pattern can be obtained.

Note that among the embroidery data creation controls, the controls for SLO to S12 may be provided in the control device of the embroidery sewing machine.

In 84 of the embroidery data creation control, the first virtual line may be provided at an arbitrary distance from the shape defining line. It may be provided on either side.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a block diagram of an embroidery data creation device, FIG. 2 is a schematic flowchart of a routine for controlling embroidery data creation, and FIGS. 3 and 4 are embroidery data creation control routines. An explanatory diagram for explaining the control, Figure 5 is a diagram showing an embroidery pattern stitched in a staggered manner based on sewing point position data created by the embroidery data creation device, and Figure 6 is a diagram showing the first virtual point when the embroidery pattern is not a closed loop. FIG. 3 is an explanatory diagram for finding the second virtual point and the second virtual point, respectively. 1. Embroidery data creation device, 4. Control device, 5.
CPU, 8...ROM, 10...RAM, 11
...Dot sequence data memory, 13..Staggered stitch width data memory, 19..Embroidery block data memory, L.
・Shape defining line, S...first virtual line, T...second virtual line.

Claims (1)

[Claims] (1) The embroidery machine forms an embroidery pattern consisting of zigzag stitches on the workpiece cloth by changing the relative position of the sewing needle that moves up and down and the workpiece cloth.The embroidery data for the embroidery sewing machine forms multiple areas where the zigzag stitches are to be applied. An embroidery data creation device that creates embroidery block data for dividing into block areas, the embroidery data creation device determining the position of a series of dots on a shape defining line that defines the shape of an embroidery area having a predetermined zigzag width on which zigzag stitches are to be applied. a storage means for storing point sequence data representing a zigzag stitch width and zigzag stitch width data representing a zigzag stitch width; A first virtual line defining a first virtual line parallel to the shape defining line and a predetermined distance away from the shape defining line.
Calculating means for determining the position of a virtual point sequence and further determining the position of a second virtual point sequence that defines a second virtual line parallel to the first virtual line and separated from the first virtual line by a staggered stitch width; The positional data of the first virtual point array and the second virtual point array are received from the means, and each of the four virtual point arrays is composed of a mutually adjacent pair of first virtual points and a corresponding pair of second virtual points. The present invention is characterized by comprising block data determination storage means for obtaining data on the positions of the points as embroidery block data of a rectangular block area obtained by connecting each of these four points and storing the data in a predetermined order for applying zigzag stitches. Embroidery data creation device for embroidery sewing machines.