JPS63145693A - Data input apparatus of embroidering pattern sewing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data input device for an embroidery pattern sewing machine that creates circular or arcuate needle drop data.

Conventionally, in this type of embroidery sewing machine, when creating embroidery data, the coordinate points of figures such as characters were entered using a keyboard using a microcomputer, etc.
This made the work extremely complicated and reduced work efficiency. In addition, when inputting data using a keyboard, it is easy to make incorrect inputs due to operational errors. - The data input vertically must be checked by actually embroidering, and if an error occurs, all coordinate points must be entered from the beginning again using the keyboard. became complicated.

The object of the present invention is to eliminate the drawbacks of the above-mentioned conventional devices.

Embodiments of the invention will be described with reference to the drawings. 1 is a base having a flat upper surface 1a, and a bed surface 2a is provided on the upper surface 1a.
Place the sewing machine 2 so that it is flush with the top surface 1a,
The sewing machine 2 moves a needle 4 up and down in conjunction with a drive motor 3 installed on the same axis as a main shaft (not shown). Reference numeral 5 denotes a support frame, which removably supports an embroidery frame 6 for holding cloth stretched thereon, and the support frame 5 is driven by a driving means (not shown) such as a stepping motor disposed inside the base 1. Linked to.

It is made movable on the upper surface 1a in a composite direction of the X direction along the axial direction of the main shaft of the sewing machine and the Y direction along the direction crossing the axial direction. Reference numeral 7 denotes a floppy reading means, and an insertion portion 7 into which a floppy disk (not shown) can be inserted and removed.
Read the data on the inserted floppy disk with a. 8 is a keyboard, which reads the floppy data read by the reading means and which is used by the sewing machine 2.
Key operation group 9 for writing data to a floppy disk regarding sewing operations, movement control of the support frame 5, etc.
and a display section 10 that displays data input or output in relation to key operations of the operation key group 9 in characters.

11 is a well-known tablet (coordinate reading device);
A cursor (reader) 12 is connected via a cord. The cursor 12 has a transparent glass 13 with a cross-shaped mark 13a in the center inserted into a window hole penetrating vertically at one end, and sixteen operation keys 14 arranged on the top surface of the other end. A lamp 15 is provided that lights up to confirm the generation of a signal when 14 is operated. When the cursor 12 is placed on the top surface of the tablet 11, the position coordinates on the top surface of the tablet 11 corresponding to the intersection of the cross-shaped marks 13a at the placement position are detected (see FIG. 2), and the coordinates related to the operation of the operation keys 14 are detected. The position coordinates are read and a coordinate signal corresponding to each coordinate is generated.

16 is a control device, display means 1 for performing CRT display;
7. and an insertion section 18a into which a system floppy disk (system disk) for writing basic data can be removably inserted, and an insertion section 18b into which a data floppy disk (data disk) into which data to be read by the floppy reading means 7 is written can be removably installed; Floppy control means 18 for writing to or reading from each floppy disk, and operation means 1 having a plurality of keys.
9, and a control circuit (not shown) having ROM, RAM, CPU, etc., and a program based on the flow shown in FIG. 4 is stored in the control circuit as described later. In the flow shown in Figure 4, load the graphic input correction program rPT I N□ from the system disk,
When inputting the processed data of "rPRINl", it is written to the system disk, and when modifying it, the once-written processing data is read out from the system disk, modified, and rewritten to the system disk as processing data. After processing rPTINlJ, it is determined whether there is a display command or not, and when a display command is issued, the input pattern display program rPTDIPJ is read from the system disk and the processed data from the system disk is displayed on the display means 17 on the basis of the rPTDIPJ. indicate. rPTD
After IPJ processing or when there is no display command, it is determined whether or not there is a modification, and the program rPTIN described above is executed at the time of modification.
The correction processing data is rewritten based on. If there is no modification, the needle drop coordinate calculation output program rRTOUTJ is read from the system disk, the processing data on the system disk is processed, and the processing results, that is, data such as needle drop coordinates, are written to the data disk and the flow is completed.

The drawing input correction program (PTINl) will be further explained with reference to the flowchart in FIG. It is determined whether the data to be read is a new input, that is, a modification, and if it is new, the number of times the original drawing read on the tablet 11 has been enlarged is read by manual keystrokes from the cursor 12. Input this magnification by moving the cursor 12 from "1" to "
For example, when inputting ``4'', when inputting ``1'', the comparison scale is 1/1.
It becomes 4 times. Next, a "baseline" is determined.

The base line is a standard Xn coordinate specified in advance for plotting the needle drop point, and is characterized by an inclination θ with respect to the absolute X coordinate of the tablet 11, as shown in FIG. 3A.

The inclination angle θ is determined as follows using the cursor 12 based on the flow shown in FIG. That is, by aligning the mark 13a of the cursor 12 with the absolute coordinate point (Xa, Ya) and pressing the key 14a, first
), and then by pressing the key 14a at a point (xb, yb) that is distant from the point (Xa, .Y'a), the coordinates of the point (xb, yb) are read. From these,
The axial distance L
((Xb-Xa)"+ (Yb-Ya) is calculated,
cos θ=LX/LXY, LY/LXY are determined, and from now on, the base line inclined θ with respect to the absolute coordinate X will be the X axis. This baseline Xn and absolute coordinates (x, y) are Xn:Xeo3θ
-Y sin θ. Thus, the coordinate transformation coefficient co
Once sθ and sinθ are determined, the data reading operation begins based on the flow shown in FIG.

In this embodiment, as will be described in detail later, when reading the original drawing, the original drawing is divided into a plurality of blocks as shown in FIG. 3B, for example. In this embodiment, the "sewing type" in "sewing type selection" in the flowchart of FIG. 11 is three types: pattern stitching, embroidery stitching, and jump.
1. Instruct with key 14m. Pattern sewing is the first
As shown in Figure 2A, embroidery stitching refers to sewing only the outline of the pattern, as shown in Figure 12B, embroidery stitching refers to filling the inside of the pattern with sewing thread as shown in Figure 12C, and jumping refers to stitching only the outline of the pattern as shown in Figure 12C. This means that the stitches can proceed up to 22 points without needle drop.

For example, as shown in FIG. 3, the point count is a counter that sequentially adds up the points in one block from 1 to 5. First, the count value P is set to "0", and the cursor 12 is Each time a point is read, the count value P is set to 1.
Only count up. Next, it is determined whether "all points have been completed", that is, whether reading of the block has been completed. When the r14nJ key of the cursor 12 is pressed, it is determined that reading the block has ended. If "all points completed" has not been reached, it is determined whether "block rereading" is to be performed. "Block rereading" is a case where the operator presses the key 14j of the cursor 12 in order to correct the data of the entire block when an undesired point is read due to an operator's operational error. When key 14j is pressed, the data for all points within the block is cleared and the data must be reread from the beginning.

If the key 14j is not pressed, it is determined that there is an error in inputting the r pixel. A "pixel input error" is a case where the input data is incorrect and the operator presses the key 14i of the cursor 12 to correct the data. When the key 14j is pressed, the count value P of the point counter counts down by ``2'' and then counts up by ``1'', so that the previous data is cleared and it becomes possible to read the correct data there. When neither the key 14j nor the key 14j is pressed, the reading operation of "straight line", "1 circle", and "circular arc" shown below immediately starts.

In this embodiment, each side (straight line), one circular arc, and a circle constituting the edge of one block is referred to as a unit. It is well known that a straight line is determined by two points at both ends of the line, and a circle and an arc are determined by three points that are not on the same line, and this geometric property was used to determine the units in this example. It's being used. That is, for example, if there is only one point to determine an arc, or conversely if there are four or more points, it should be regarded as an error, and such a check is performed according to the flow shown in FIG.

In the cursor 12, the designation of a straight line corresponds to the key 14b, the designation of a circular arc corresponds to the key 14c, and the designation of 1 circle corresponds to the key 14d. These different designating operations using the cursor 12 will be explained in the flowchart of FIG.

In Figure 13, first of all, the "linear number" used below is "
The count values of the counters ``Number of arc points'', ``Number of inner points'', ``Number of arcs'', and ``Number of circle sides'' are set to ``0'' in advance. Then, below, key 14b, key 14c or 1 of cursor 12
In connection with the operation 4d, each of the "number of straight lines", "number of circular arc points", or "number of 1 circle points" counters is incremented by "1". When the "number of straight lines" counter counts up by "1", the counted value of the "number of arc points" counter is determined. For example, when inputting points P2 to P as shown in FIG. 14, it is assumed that P to P3 is an arc and P to P4 is a straight line. When the mark 13a of the cursor 12 is aligned with the point P1 and the key 14c is pressed, and then the mark 13a is aligned with the point P2 and the key 14c is pressed, the count value of the "arc point" counter becomes "2". At this time, when the mark 13a is placed on the point P and the key 14c is pressed, the points P, P2, . Since one arc is determined by P, the count value of the "r number of arcs" counter increases by "1", and since the determination of one arc is completed, the "number of arc points" counter becomes "0". cleared. In this case, it is normal, so the flow check function in Figure 13 does not work.
However, when the "arc point number" counter is "1", that is, when P□ is input, as shown in FIG. If you press the button, the arc cannot be determined using P□ and P2, so a buzzer sounds and a data input error is reported. In this case, it is necessary to correct the data by pressing the key 14j or 14y of the cursor 12 according to the flow shown in FIG. Also, in FIG. 16, one point p1. At p2, press key 14C together to get 1 point P, but if you press key 14C, ゛point P□,
The arc is determined by P, , P3 and the count value of the "Number of arcs" counter is incremented by "1" in the same way as above, but point P3 is the final point of the arc and the starting point of the next arc. Regarded.

The count value of the "arc number" counter is not "o" but "1", and no error occurs. Also, in Figure 17,
Point P□, P2. Press key 14d at both P and 1.
The count value of the circle point number counter becomes "3", and the point p1.
Since the circle is determined by pt, p, the count value of the "number of circles" counter is incremented by "1". Therefore, if you align the mark 13a of the cursor 12 with the point P during the day and press the key 14d, the count value of the "r circle score" counter is further counted up by "1" and becomes r4J, but in this implementation In the example, as shown in FIG.
This is not considered an error because a circle concentric with the points pi, p, , p, is formed through .
When the count value of the counter is further incremented by "1" and reaches "5", there are too many points, and a buzzer sounds to notify an error.

In this way, when all points have been checked, the count value of the "arc point number" counter at the end point is judged, and if the count value is "0", the arc has already been completed, so the next flowchart shown in Figure 17 is Proceed to. Also, as shown in Figure 19, the "number of arc points" at the point PQ-1, which is one point before the final point PQ.
If the count value of the counter is "2", the arc is completed at the final point PQ using the data input by the key 14n of the cursor 12 and the three data at points PQ-, , PQ-1, and one arc is formed. Complete the process and increment the count value of the "number of arcs" counter by rlJ. However, if the "arc point number" counter is "1" at point PQ-, it will be impossible to complete the arc at the final point PQ, so a buzzer will sound to notify an error.

Figure 20 divides the input point data according to Figures 11 and 12 into multiple units of straight lines, arcs, or circles, and provides configuration data for each unit to be used in calculating the needle drop point, which will be described later. This is the flow for Here, the number of units is the sum of the counts of the "number of straight lines" counter, the "number of arcs" counter, and the "number of 1 yen" counters in the flow shown in FIG.

The configuration data includes D (X
, 1) to D (X, 5).

X is a serial number for identifying each unit. First, D(X, 1) is a code to indicate the type of unit; "O" for a straight line, "1" for an arc, and "2" for a circle.
and give. D (X, 2) is given the number of the starting point of the unit (see Figure 3 B), and D (X, 3
) gives the number of the midpoint of the unit. However, since the straight line 22 does not have a midpoint, it is conveniently written as ``−
1” is given. For D (X, 4), give the number of the end point of the unit. In particular, if the unit at the end point of the block is a straight line, the end point of that unit coincides with the start point of the block, so if J=O, D (X, 4
)=O+1=1, and return J=o+1=1. Even if the last unit of the block is an arc, the end point of that unit coincides with the start point of the block, so first J = -1
Then, D(X, 4)=-1+2=1 or J=-1+
Return to 2=1. When the data check and the assignment of configuration data to each unit for one block are completed in this way, the process returns to the flow shown in FIG. 5 and the designation input of "swing" and "pitch" is performed. "Pitch" is number key 1 of cursor 12
4 a to 14 j in units of 0.1 m. For example, if keys 14b and 14c are pressed successively, the pitch between the needle drop points will be 0. lX12=1°2mm is set.

Next, use the cursor 12 to select "
"Furi" is specified. In this embodiment, there are two types of "swings": "direction designation" as shown in FIG. 30, and "medium swing" as shown in FIG. 36.

In "direction designation", although not shown, based on the same flow as in FIG.
By pressing 4a again, the swing direction relative to the base line Xn (FIG. 3) is determined.

Further, "medium swing" is specified by pressing the key 14h of the cursor 12.

When data reading of one block is completed in this way, it is determined whether data reading of all blocks of the original pattern (pattern) has been completed or not based on the presence or absence of a completion command, that is, whether or not the key 14n of the cursor 12 has been pressed twice in succession. When the process is completed, the command input regarding the registration number (pattern NQ) for registering those data on the data disk is read, and the data processed by the rPTIN process is stored in the system disk as pattern data.

Next, the input cover turn display program rPTDIPJ will be explained along the flow shown in FIG.

Read the pattern data stored by the pattern input correction program rPTIN,J from the system disk, and calculate the maximum values of the X and Y axes of the data, XMAX, YMAX,
and select the minimum XMIN, YMIN. That is, the 21st
．． In the flow shown in Figure 22, first, data in one pattern is loaded, and the first point (X (1)
, Y (1) ), -tanXMAX=X (1
), XMIN=X (1), YMAX=Y (1)
, YMIN=Y(1). Next, the next point in the first block (X-(2), Y(2)) and XMAX,
Compare the size with MIX, YMAX, YMIN, and
If N>X (2), then XMIN=X (2), XMAX<
If x(2), then XMAX=X(2), YMIN>Y(2
), then set YMIN=Y (2), and if YMAX<Y(2), set YMAX=Y (2). Repeat this comparison for successive points in the first block, and make the comparison for all points in the first block. When finished, the data of the next block is read and further comparison is performed. Then, when these comparisons are completed for all blocks, XMAX, XMIN
represent the maximum and minimum values of the X coordinate of data in all blocks in one pattern, respectively, and YMAX and YMIN represent the maximum and minimum values of the Y coordinate, respectively. Therefore, LX
=XMAX-XMIN, LY=YMAX-YMIN, calculate the spread LX, LY of the data in the X and Y directions, and calculate M
X=XMIN+LX/2, MY=XMIN+LY/2
Calculate the center coordinates of the data. Also, LX, LY
By setting the larger of these as LXY and scaling it in inverse proportion to the value of LXY, the pattern can be displayed on the CRT at a constant scale regardless of the size of the original pattern.

When scaling is completed, the display routine for each block shown in FIGS. 23 and 24 is entered. In the flow of Figure 23, 1
After reading the data of a block and enlarging or reducing the scale of the data based on the value of the SCL, it is determined whether the smallest unit within one block is a straight line, an arc, or a circle. If the unit is a straight line, mark the start and end points and connect them with a straight line. In addition, if it is a circle or an arc, its starting point P, = (Xz
-Yt), midpoint pz=(xz, Yl), end point P3=(X
3, Y, ), and calculate the center coordinates (XOlyo) and radius R based on the flow shown in FIG. That is, in the flow of FIG. 23, p, , p.

Straight line L1 passing through: (X-X□) (yz-yi) = (Y
-Y, ) (xz-xx) and straight line L2 passing through P2, P: (X-X2) (Yl-Yl) = (
Y−Yl)(Xff xz) is determined. At this time, L
l and L2 are parallel, i.e. (Y, -Yl)/ (x, -x
, )= (Yl-y2)/<X3-X2
), the flow returns because the three points are on the same straight line and a circle or arc cannot be formed. In this case, it is necessary to re-enter the data for determining the circle or arc.

Now, if Ll and L2 are not parallel, a straight line L1' passing through the midpoint of P2 and perpendicular to Ll: -(x-
(Xi+X,)/2)(X,-X,)=(Y (Y,
+Y2)/2)(Yl-YL) and p, the straight line Lx' perpendicular to L2 passing through the midpoint of p, knee(X-(X2+X
3) /2)((x, -x,) = (Y-(y2+y
3) /2) Determine (Y, -Y,) and L1'
Find the intersection (x,, Y,) of / as follows.

This intersection (Xo, ya) becomes the center coordinates of the circle or arc, so R=v'''(x x - x o ) 2+
(y o-y.) Calculate the radius R by 2.

If the unit is a circle, a circle is immediately drawn based on the center coordinates (xo, yo) and radius R, but in the case of a circular arc, the direction angle is limited, so the direction angle AG1. Compute AG2. That is.

AGt = tan-1((yt-Y, )/(x
x −X, )) xAG2 = tan-” ((Y
l-Yo)/(X3-Xo)) Thus, an arc is drawn within the range of direction angles AG1 and AG.

As above, move the units in one block one by one.
At the same time, the count value N of the block counter is counted up by "1" in connection with the completion of displaying one block according to the flow shown in Figure 24, and the count value N of the block counter is also Display near the completed block. Next, divide this count value N by "6",
If the remainder S is O, for example, a "purple" color code is generated, if S=1, a "red" color code is generated, and if S=2, a "yellow" color code is generated. occurs,
If S=3, a "blue" color code is generated, and S=4
If S=5, a color code of "green" is generated, and if S=5, a color code of "rwhite" is generated. That is, the outline of each block is sequentially displayed in a different color on the CRT. At the end of displaying all blocks, the previously registered pattern Na is displayed, and if a hard copy (PRINT) is required, it is copied and finished.

Next, the needle drop coordinate calculation output program rPT○UTJ will be explained along the flowchart of FIG.

First, a pattern is read from the system disk, and the data content of the data disk in which needle drop coordinate data to be described later is to be stored is checked to confirm whether or not there is a write capacity. Next, it is determined whether the data storage of all blocks has been completed, and if it has not been completed, the data for each block is read from the system disk. Figure ~ Figure 37)
Process.

As shown in the flowchart of Fig. 26, the needle drop coordinate calculation is performed by (
There are four types of embroidery: i) Specified swing direction embroidery (ii) Medium swing embroidery (Ichi) Pattern sewing (TV) Skipping jump), and which method to use to calculate the needle drop coordinates is determined when reading one block of data. Cursor 12 key 14Ω (thorn 1)
, key 14k (pattern), or key 14m (jump)
sewing type selection operation (specified in Fig. 11, second stitch type selection operation)
The operation content is determined according to the flowchart shown in FIG. 6, and each subroutine is selected.

(i) Swing direction specified embroidery This will be explained using FIG. 30 based on the flow of FIGS. 27 to 29. Starting point pi of block B1 = (x(1), Y (
1) Determine a straight line L1 that passes through ) and is parallel to the swing direction. Now L□ is expressed as aX+bY+c= with constants a, b, and c.
I will write it as O. Also, with constant C, point P1
A straight line DL passing through and perpendicular to Ll: bX+aY+c=0 is determined. Next, the direction in which the embroidery progresses is checked. For example, in FIG. 30, since the data of block Br is above the L stitch, the embroidery is advanced upward. Next, the two-dimensional area for the needle drop point (U (J), V (J))
Prepare. J is the count value of the needle drop coordinate counter,
Every time one needle drop point is calculated, the count is increased by "1".

In the initial state, first set J=1, and then set V(1)=
X (1), U (1) = Y (1) and the coordinates of the starting point P of block B1 are stored in the first fish of the needle entry. Next, straight line L1 is translated upward by 2 minutes of the needle drop pitch input using the flow shown in Fig. 5, and straight line L2: a X+
b Y + c-λ=0 (λ=Pv'a"+b"/b)
shall be. For example, in FIG. 28, the straight line L2 intersects the unit M1 and the unit M2 at one point.

For example, the count value of the intersection counter includes the above-mentioned single straight line L1.
Or, each time L2 etc. intersects with one unit, it counts up by "1", and whether or not there is an intersection with the unit is determined by one straight line ((n-1)λ
Ln: aX+bY+C-
(n-1) λ=0), for example, from right to left in Figure 30, and when this judgment is completed, L
When n is advanced by pitch P to Ln+1, the count value K is cleared to "o".

The coordinates of the intersection of the unit and the straight line Ln are calculated according to the flow shown in Figure '29. First, if the unit is a straight line, the coordinates of both ends of the unit are (X,, Yl), (x
z, Y2). Straight line Ln: aX+bY+c-(n-
1) In order for λ=O to intersect with this unit, the point (X L
It is necessary and sufficient that -Y t ) and (x z, Y2) face each other across the straight line Ln. That is, Z□=aX1+
bY, +c-(n-1)λ, Z, = aX, +bY2+c
(n-1) When λ, if Z IZ 2>O, it is assumed that there is no intersection between that unit and the straight line Ln, and if ziZ2≦0, there is an intersection and the next intersection is calculated. Proceed to. That is, the straight line passing through the points (xl, y) and (X 2, y z ) is CX-X) (y
z-yt) = (y-yt) (Xi-Xi), the intersection point (x5''t, y, +,) between this and Ln is, Since one intersection point has been calculated in this way, the calculated value K of the intersection counter is Counts up by "1".

Next, when the unit is a circle or an arc, the three points of one arc are defined as (xiyx) (xayi) (X3Y3). From these three points, calculate the center coordinates (X Oly o ) of the circle (arc) and the radius R of the circle (arc) based on the flow shown in Figure 25. First, the point (X Oly Y, ) perpendicular to Ln.
Straight Al1L t Knee b (x-x,) +i(y-
Y, )=O is determined. Then, the intersection of Lt and Ln (X
X, YY) is calculated by, and the point (X Oly a ) and the point (xx, y
y) and the distance 111H□ from Hz ” V' (X o-X
Calculated by ``X)'' + (Yo-YY)''. This Hl is compared with the radius R, and if Hl>R, the straight line Ln is at its center (Xo, Y
, ) since it crosses a point farther than the radius R, it does not intersect with the circle, and therefore there is no intersection point. However, H1
If ≦R, Ln and the circle intersect, so proceed to the next intersection point calculation.

That is, Ln: aX+bY+C(n-1) λ=0 yen:
(x-xo) ”+ (Y-Yo) ”=R” as X and Y
Solve simultaneously for two intersection points P1=(xk+1,
Yk+,)P='(Xk+,,Yk+2) is obtained. (
(The specific calculation formula will be omitted as it will be complicated.) Now, if the unit is a circle, the calculated intersection points P1 and P2 are always fixed to the unit, so the count value K of the intersection counter is counted up by "2". .

However, if the unit is a circular arc, the intersections Pyu and P2 may not belong to the unit, so it is called P.

Regarding P2, it is determined whether it belongs to a unit or not in the following manner. That is, the three points of the circular arc (X□, Y□).

(x t, yz), (x,, Y 3 ) at the center (
The direction angle AG1, AG, ,AG, from XOlY, ) is A
Gl: tan-1 [(Yx yo) / (Xt Xo)
]AG,: tan-1((Y2 Yo) / (Xi Xa)
)AG,=tan-1((Y,-Y,)/(xi-xo)]
The direction angle AG4 of the intersection point p, p, is calculated by
．． AG, AG4==tan-'((Yk+, Yo)/(X
k+, -xo)) AG, ==tan-1((Yk+, -
'Ya)/(xk+, Xo)), AGl<AG, <AG2 or AG.

P only when < A G 4 < A G z holds.
Regarding □ as the intersection of the arcs, the count value K of the intersection counter is r
Only lJ counts up and the first one is AGl<AG,<AG
P2 only when AG, <AG, <AG3 holds.
is regarded as the intersection of the circular arcs, and the count value of the intersection counter is further incremented by "1".

When all the intersection points of each unit have been calculated for one straight line Ln, the following check is performed based on the flow shown in FIG. 28 in relation to the count value of the intersection counter.

(1) K=0 In this case, since there is no intersection between the unit and the straight line Ln, it is checked whether the final point has been calculated, and if the final point has been calculated, the calculation of the needle entry point for that block is performed. finish.

(2) K=1 In this case, the obtained intersection value (Xxy3') is directly used as the needle drop coordinate (U (J+1), V (J+1)
and increments the count value J of the needle drop coordinate counter by "1".

(3) K=2 The number of intersections between the unit and the straight line Ln is 2 at the 31st point.
There are three cases as shown in Figures A, 31B, and 31C.

In the case of FIG. 31A, the straight line Ln connects two units Mi,
Since it intersects the connection point of M, the straight line Ln intersects both of the two units M1 and M2, and therefore,
The intersection point is considered to be =2. However, in reality, there are two intersections (
xt, y engineering) and (xi, yz) are the same, so x1=
This results in the case of =1 in X2, '/1='/i.

In the case of Fig. 31B, one straight line Ln has two different units Mi, M, different points (X2, y work),
They intersect at (Xi, yz).

At this time, the straight line Ln- is lowered by P than the straight line Ln.
The needle drop point (U(J), V(J)) specified as the final needle drop coordinate among the intersection points with each unit with 1 and the point (xt,
y engineering) and (xz, yz), pt = v' (x, U (J) )" + (yt
V(J))"D,=17"(xi-u(J
))" (yi-V (J))", and if Dt>D, then the point (X).

yt), and if D 1 < D z, select the point (X
i, yz), and the coordinates of the selected point are expressed as (U(
J+1) and V(J+1)), and the count value J of the needle drop coordinate counter is counted up by "1".

In the case of Fig. 31C, unlike the above, two different intersection points, 1x1, yz) and (x2. yz), belong to one arc unit M4, but this point is processed in the same way as in the case of Fig. 29B. and the previous needle drop point (U (J)
, V (J) ) as the next needle entry point (
U (J+1), V (J+1)), and the count value of the needle drop coordinate counter is counted up by "1".

(4) K=3 As shown in FIG. 32, one of the intersections extends over both units M82M2, and (xz-yz) and (X2, yz) overlap. In this case, x1=X,,y
Setting 1=y2 results in the case of FIG. 31B. If the result cannot be returned to the case shown in FIG. 31B, it is regarded as an error.

(5) K=4 As shown in Fig. 33, one intersection spans both units M1 and M2 and overlaps with (xz, yz) and (X2, yi), and the other intersection spans both units M1 and M4. This is a case where Cxs, y3) and (X4.yi) are also overlapped, and X = x2, y = Vz and X z ''
4 s'/s'' By setting y4, the 31st
This results in the case of diagram B. If the result cannot be returned to the case shown in FIG. 31B, it is regarded as an error.

(6) K) 4 In this embodiment, the maximum number of intersections of one straight line Ln with a unit is "4", so if K becomes larger than "4", it is immediately regarded as an error.

When the flow returns from FIG. 28 to FIG.
Then, the intersection points of this straight line Ln+1 with the unit are calculated based on the flow shown in FIG. 29, and the number K of the intersection points is checked based on the flow shown in FIG. 28.

In particular, a typical case where N=2 as shown in FIG. 34 will be explained. In this case, straight lines Ln, Ln+1, Ln+2
are unit M1. Intersect with M once, Ln
, Ln+1, Ln+2 and the units M,, M, have a total of six intersections. However, not all of these intersection points are designated as needle drop points, and as shown in the flowchart of FIG. 28, only one point on one straight line Ln is selected as the needle drop point. Assume now that the right side (FIG. 34) of straight line Ln, which intersects unit M2, is selected as the needle drop point (U (J) , V (J) ). Then, unit M1 of Ln+1. Of the two intersections with M2, the intersection on the Unisito machining side is clearly farther from (U(J), V(J)) than the intersection on the Unit Amount 2 side, so the intersection on the Unisito machining side is next. Needle drop point (U (
J+1), V(J+1)). Similarly, the intersection of Ln+2 and units M1゜M2 is the needle drop point (
U (J+2) , V (J+2)). In this way, the needle drop point progresses while reciprocating between unit weights 3 and 3 Mz, resulting in an embroidery stitch whose needle swing direction is substantially parallel to the straight line Ln.

(1:) Naka-dori embroidery "Naka-dori" refers to an embroidery stitch in which the needle swing direction changes radially from a certain center point, and the needle drop point is calculated based on the flow shown in Figure 35. Ru. That is, first, regarding the arcuate unit M1 outside the block in FIG. 37,
The three points pt=(x+, Yl), P2=(X2, Y2)
, P3=(Xs, Yl>, calculate the center of the arc (XXo YYa) and the radius Ro of the arc based on the flow shown in FIG. 25. Next, the direction angle AGI = jan of the starting point P,
[(Ys YYo )/(Xt XXo) and the direction angle of the end point AG2 =jan [(Yl YY
O)/(X3-XXo)], and calculate the angle AGP corresponding to one pitch from RoXAGP=P to AGP=P/
R.

The initial value AGX of the angle is set as AG.

Next, P = (Xt, Yt) is the coordinate of the first stitch (
U(1), V(1)) and arc unit M
1, the total angle P IO = l AG, -AG, l is calculated, and the total number of points I = P IO / AGP is obtained. Next, set the calculated value J of the counting counter to "1", and it is already U(1).
=X+ and V(1)=Yt, so J is "1"
count up and add AGP to AGX.

With the above settings, the needle drop point of J=1 belongs to the outer arc unit M, so when J is an odd number, select the point on the unit amount 1 side, and when J is an even number, select the point on the unit amount 1 side, and when J is an even number, select If a point on the unit amount 2 side is selected, the needle drop point will reciprocate between unit M1 and unit amount 2, resulting in embroidery stitching. Therefore, we count up J by "1" and AGX
After adding AGP to , determine whether J is even or odd, and J
If J is an odd number, the distance RR from the center point (XXO, YYO) to the needle drop point is set as Ro. If J is an even number, it is determined whether the block is hollow. Not hollow means that the center point (Xo
, Yo) are included in the block. If it is not hollow, set R= l +u+. As will be described later, this is equivalent to providing a circular hollow E of radius III+ in FIG. 39, for example.

In addition, if it is hollow, there is another unit M2 inside the arc unit M1, so the straight line LA with the direction angle janAGX passes through the point (XXO, YYO): Y YO = tan
Find the intersection between AGX (X Xo ) and unit M2. For this, in the flow of Fig. 29, the straight line L
1, the equation of the straight line LA is substituted, and the coordinates (xk+1, yk+1) of the intersection point are calculated.

And R=v'(xk+1-Xo)"+ (y
Calculate k+I Y, a.

Now, when digging in the middle, as is clear from Figure 37, the seam feels more pinched as it gets closer to the center coordinates (X,, Yo).
Clogs are more likely to occur. Therefore, as shown in FIG. 38, when the pitch P is small and when the inner unit M2 is close to the center coordinates (Xo, YO), clogging is prevented as follows. That is, first, it is determined whether the set pitch P is larger than, for example, 0.4 am, and if the pitch is larger than 0.4 as, it is assumed that clogging will not occur, and the process shown below is not performed and the RR is immediately set.
= R. If the pitch is smaller than 0.4I1m, it is determined whether R is smaller than Ra/3. If R is larger than R8/3, the density of stitches in inner unit M2 (Fig. 38) is determined. Assuming that M is not very high compared to the outer unit M, let us assume that RR=R. Pitch is 0.4 mi
If it is less than + and R is less than Ra/3, determine whether J is a multiple of 4 or not. If it is not a multiple of 4, set RR=R. If J is a multiple of 4, set RR-E3RO. . Then, using the RR calculated separately depending on the parity of J and whether it is a multiple of 4, U (J) = XXO + RR-cos AGXV (
J ) =YYO+RR-sin AGX makes J r
The coordinates of the needle drop point (U
(J), V(J)) are calculated sequentially until J<I, and in relation to J>1, (U(J), V(J))=P3=
The value of the coordinate point (Xi, Y3)) is stored and the flow returns.

In other words, if the pitch P≧O14 city or R≧Town R6, it is assumed that no clogging will occur, and if J is an even number, it is set as RR=R, so the needle swing direction is set to 1 point (X
o, Yo), and the needle drop point is on the arc unit Ml when J is an odd number in Fig. 37, and on the unit amount 2 when J is an even number, in a clockwise direction. However, the pitch P < 0.4 a
When m and R<R6/3, when J is an even number,
If J is a multiple of 4, set RR=, 3-RO, and if J is not a multiple of 4, set RR=R, so as shown in Figure 38, the needle drop point that should be on unit amount 2 is set. Half of them are set above R by RR = Ro / 3 on the outside of (Xo, Y.), so the density of stitches on unit amount 2 is reduced to half and clogging is prevented. Prevented.

In the case of the circle shown in FIG. 39, similar processing is performed using the hollow E set around the center point (Xo, Yo) as the unit M2 in FIG.

(11' Pattern sewing "Pattern sewing" is to form stitches at a predetermined pitch P on the outline of the unit as described above, and calculate the needle drop coordinates based on the flow shown in Fig. 40. In the flow, first, the calculated value J of the counting counter is reset to O, and it is determined whether the unit in which the stitch is to be formed is a straight line or a circle (arc).Hereinafter, the case of a straight line and the case of a circular arc will be explained separately. do.

(1) Points at both ends of the linear unit (X, , Y,), (X2, Y2)
The direction angle of the unit from A G X = tan [(Y
2-Yr )/(X2 Xl)] and unit length H=r (X2 Xl)”+ (Y2 Yl)
”, and the number of points in the unit I=H/ according to the pitch P.
Calculate P.

Next, set the count value JO of the stitch number counter for each unit to r□
, and U (J+1 ＞=X, +J○−P −cos AGX
V (J+1 > =Y+ 1 J○−P −sin A
With GX, the needle drop point (U (J+1), V (, J+
1)), and when this calculation is completed, JO and J are
1” and again (U(J+1), V(
The calculation of J+1)) can be repeated. In this way, when JO becomes larger than the score 1, UCJ+1> =X2, V (
J+ 1) = Y2 (-L2'7) (7) jl
N point), count up J by "1", and proceed to calculation of the needle drop point of the next unit.

■Three points of arc unit (Xl, Yt), (X2, Y2)
, (Xs, Ys), calculate the center coordinates (Xo, Yo) and radius R based on the flow shown in FIG.
XO)], the final value of the angle AG2=tan-'[(Y
3 YO)/(Xi XO)] Total angle AGT= l
AG2° - Angle AG for AG, l, and 1 pitch
Calculate P=P/R. Calculate the score I using I=AGT/AGP and calculate the count value JO of the unit individual counter as "
0” and U(J+1)=XO+R-CO5(AGI+JO-AGP)V(J+
1) = Ya +R-gin (AGI +J(,-AGP)
and the needle drop point (U (J+1 > , V (J+1
>), and when this calculation is completed, JO and J are
1” and again (U(J+1), V(
Repeat the calculation of J+1)). In this way, when JO becomes larger than the score ■, U(J+1>=Xs, V(J+
1) Set = Ys (final point) and count up J by "1". The count value J of the stitch number counter gives a serial number of needle drop numbers across each unit within the block.

When the above calculations are completed for all units in the block, the flow returns.

(One rigid jump is from 21 points to 22 points as shown in Figure 12C.
The needle drop point moves to the point without the needle dropping, and does not participate in stitch formation.

In this embodiment, a jump is regarded as a -block.

When the calculation of the needle drop coordinates is completed in this way, the 40.41
．． The needle drop coordinate storage flow shown in Fig. 42 is entered.

The needle drop coordinate storage flow is for giving a specific hexadecimal command code specifying swing to the needle drop coordinate data and converting the needle drop coordinate data into relative coordinates. The reason for converting to relative coordinates is that the data necessary for the drive source of the embroidery sewing machine is not the needle drop coordinate itself, but the direction and distance to travel from the current needle drop coordinate to the next needle drop coordinate. be.

In the flow, first it is determined whether the current data belongs to the first block, and if it is the first block, it immediately outputs the start code 7D and sets UO=U(1).
, VO=V(1). Moreover, if it is not the first block, the joint with the previous block is checked based on the flow shown in FIG. That is, the final point of the previous block is (
UOlVO), the current first point is (U(1), V(1)
), calculate the two points and determine the value of L, L=O
If so, return immediately, and if L≠0, output "80" (command code for commanding the pattern) and connect (uo, vo) and (U(1), (1)) with a straight stitch.

Next, based on the type of swing input using the keys 14a and 14h of the cursor 12, if the swing direction is larger than 45 degrees with respect to the base line Xn (Fig. 3), vertical embroidery is selected. If the swing direction is less than 45 degrees with respect to the base line, it is assumed to be horizontal swing embroidery and outputs the command code "FE". If it is "medium swing", the command code is output. It outputs "7F", if it is a pattern it outputs a command code "80", and if it is a jump it outputs a command code "7E". When a command code is specified, the total number of stitches J in one block is read out, the counted value JJ of a predetermined counter is reset to 1, and then JJ is counted up by "1". Using this JJ, all data within one block is converted into relative coordinates (UU, VV) 4 as follows. That is, UU=
U (JJ) - UO, VV = V (JJ) - VO, in the initial state, set UO = U (1), VO = V (1), and count up JJ by one from "1", so UU =
U(2>-U(1), VV=V(2)-V(1)UU
, VV is checked to see if either one exceeds the pitch P, and if both UU and vv are smaller than the pitch, the values of UU and VV are converted into binary codes and output to the data disk. If either UU or vv is larger than pitch P, this corresponds to some kind of data calculation error and is therefore considered an error. After that, generally the coordinates of the JJ-th needle drop point (U (JJ), V (JJ
)) also, UO=U <JJ>, V (0) =
Set V(JJ), count up JJ by 1, and get UU=U(JJ+1)-U(JJ), VV=V(JJ+
1) By calculating -V<JJ), the JJ-th relative coordinates (UU, VV) are output to the data disk. In this way, JJ is counted up by "1"JJ>
When J is reached, all needle drop point coordinates of the block have been converted to relative coordinates and storage on the data disk has been completed, so the directory section write flow shown in Fig. 43 is processed and the pattern block and each block are written in the directory section of the data disk. Finish by writing in the track fish, etc.

The present invention has the above-described configuration, and next, the case of inputting a pattern will be explained based on a specific example. Assume that an original sheet of paper is placed on the tablet 11 and, for example, the alphabet "B" and the exclamation mark "!" are read. First, "rB" is divided into large cylinder blocks as shown in FIG. In FIGS. 44 to 53, only blocks that have already been read are shown, and blocks that have been read are sequentially added to them.

Now, after specifying a new input by operating the operating means 19 and setting the school to 1x by pressing, for example, the key 14b of the cursor 12, in FIG. key 14
Press a, then match mark 13a to 82 points and press key 1.
By pressing 4a, the base line Xn connecting the 32 points is designated, and then the inclination θ of the base line Xn with respect to the X axis of the tablet 11 is calculated by the coordinate transformation count calculation routine (FIG. 10).

Next, in FIG. 44, key 14 of cursor 12! Press to specify "embroidery stitch" and then select the alphabet "B".
”, align the mark 13a of the cursor 12 with the point PI at the lower left corner of the first block, press the key 14b corresponding to the input of “straight line” because the path to the next point P2 is a straight line, and then press the key 14b corresponding to the input of “straight line”. When the mark 13a is aligned with the key 14b, the reading between p and p is completed. Furthermore, continue to match P2-P3-P4 Ps P6 P7 with the mark 13a and press the key 14b separately, and press the key 14 to instruct the end of the block at the final point P8 of the first block.
Finish reading the first block of data by pressing n.Next, move the cursor 1 to the Q+ point on the tablet 11.
Match the 2 marks 13a and press the key 14a, then 9
By aligning the mark 13a with two points and pressing the key 14a, the swing direction is specified in the Q+-Q2 direction (lateral direction). After this, use the numeric keys of the cursor 12, for example, the key 14C.
The pitch of the swing can be changed by pressing 'P'' 0.2 y
am” is set.

Regarding the second block in FIG.
Press the key 14j to specify "embroidery stitching". The second block, like the first block, consists of only linear units, and the point PI
It is sufficient to read them sequentially as P2 P3 P4-P5. When the reading is finished, the mark 13 on the cursor 12
Align a with point Q+ and press key 14a, then mark 1
By matching 3a with Q2 and pressing key 14a, Q
The swing direction is specified in 2 directions (l-Q) (11 directions).

Thereafter, by pressing, for example, the key 14b of the cursor 12, the swing pitch r P = 0.1 lll J is set.

Regarding the third block in Fig. 46, first, move the cursor 1
Press the 2 key 141 to specify "embroidery stitching". Third
The blocks are p, p2 p, and P 4 P s
-P e, is an arc unit, so first align the mark 13a of the cursor 12 with the point P1, and press "Key 1 to specify arc J".
4c is pressed, and in the data check routine shown in FIG. 13, the count value of the "arc point" counter becomes "1". If you accidentally press the key 14b specifying ``straight line'' at point P2, the count value of the ``number of straight lines'' counter will be counted up while the number of arc points is ``1''. An error is determined and this error is signaled by a buzzer. Here, when the key 14j of the cursor 12 is pressed, the data inputted in relation to the point P2 is erased according to the flow shown in FIG. 11, and the buzzer stops.

Then, the mark 13a of the cursor 12 is again aligned with the point P2, and this time the key 14c for specifying "arc" is pressed. next,
Align the mark 13a of the cursor 12 with point P3 and move to the next point P.
Since the line between 4 and point PS is a straight line, the user presses the key 14b to specify "straight line". Thus, point P1r 22. P
The arc is determined by the three points.

Next, at points Pa and Ps, the mark 13 of the cursor 12
a and press the keys 14C for specifying "arc" individually. At the final point P6, key 1 to specify "end"
When 4n is pressed, the arc is determined by the three points P, P, P6, and data reading of the third block is completed. Then, if you press the key 14h to instruct "medium swing", arcs P, , P2. ``Middle swing'' is specified, which is radial to the center point of p, and then, for example, when key 14e of the numeric keys is pressed, ``Sochi rP=0.4ml'' is set.

Hereinafter, data is read for block 4.6 in FIGS. 47 and 49 in the same manner as for block 1.2, and data for block 5 in FIG. 48 is read in the same manner as for block 3. Note that the 4.6th block specifies vertical swing, and the 5th block specifies "medium swing".Now, after reading the data of the 6th block (Fig. 49), which is the final block, In order to move the needle drop point in advance for the next embroidery pattern, align the mark 13a of the cursor 12 with the final point P5 of the 6th block, press the key 14m to specify "Jump", and then press the mark 1
1 by aligning 3a with point Q3, which is separated to the right from point P5.
When the key 14n, which instructs the end of pattern reading, is pressed twice, "jump" from point P5 to point Q3 is read, and reading of one pattern "B" is completed. With respect to the data of the read pattern rB, a pattern magnet is determined by key operations on the operating means 19, and the pattern data is stored in the system disk.

Next, the pattern data is read out, and the
The maximum value in the direction, the maximum value in the Y direction, the minimum value in the X direction, and the minimum value in the Y direction are respectively selected, and the scale of the figure to be displayed on the CR7 display section of the display means 17 is determined by the coordinate transformation count calculation routine, and the scale of the figure to be displayed on the CR7 display section of the display means 17 is determined. Based on the flow, the first block is "red", the second block is "yellow", the third block is "blue", the fourth block is "green", the fifth block is "white", and the sixth block is "purple". ”, as the seventh block “Jump j
The parts are again displayed on the CRT with each color coded in red J.

The data regarding this displayed pattern rB is rp
'rou'r, 1 (Flowcharts in Figures 25-28, 35-36, and 40-42) to calculate needle drop coordinates,
Performs needle drop storage and directory section writing processing,
Store on data disk.

Next, reading the exclamation mark "!" will be explained. The exclamation mark "!" is divided into two blocks according to its pattern.

Now, by operating the operating means 19, a new input is specified again. Here, as in the case of pattern rB, cursor 12
For example, after pressing the key 14b and setting the scale to 1x, move the mark 1 of the cursor 12 to point S1 on the tablet 11.
3a and press key 14a, then mark 1 on S2.
By matching 3a and pressing key 14a, S...
A base line Xn connecting the points S2 is designated, and then the inclination of the base line Xn with respect to the X axis of the tablet 11 is calculated by the coordinate transformation count calculation routine (FIG. 10).

Next, in FIG. 50, after pressing the key 14k of the cursor 12 which instructs rg stitch 1, move the cursor 12 to point P1.
Key 14b to specify "straight line" by matching marks 13a
, and then align mark 13a with point Q1 and press key 14n to instruct "end". Thus, point P1. The reason why I connected Qs with a straight pattern stitch is to connect the upper end point P1 of the pattern stitch block to the block B above "!"
By specifying the first point PL of l (Fig. 51),
This is a lick so that the embroidery progresses from top to bottom in the upper block B1.

Next, in FIG. 51, the key 141 of the cursor 12 is pressed to specify "embroidery stitching". Then, set the starting point PI of the pattern sewing block in Fig. 50 to the starting point of block B, align the mark L3a of the cursor 12 with points p, , P2 in Fig. 51, and press the key 14c to specify "arc". Press separately,
By pressing the key 14b for specifying "straight line" at point P3, points P1, p2, . The zero-order point P where the arc is determined at p
4, P,, p6. Press the key 14b separately while aligning the mark 13a with the point P8, P9 and the mark 13 in sequence.
a, and press the key 14c to instruct "end" at point pto, which almost coincides with point P1, and the points P8, P9, . The arc is determined by PIO and reading of block B1 is completed. Therefore, the 51st
In the figure, the swing direction is set to Q by aligning the mark 13a of the cursor 12 with point Q+ and pressing the key 14a, then aligning the mark 13a with point Q2 and pressing the key 14a.

- Directed in the Q2 direction (horizontal direction).

Thereafter, by pressing 1 of the cursor 12, for example, the key 14d, the pitch 'P=0.3 an J' is set.

Next, in FIG. 52, align the mark 13a of the cursor 12 with the point PIo of block B1 and press the key 14m to instruct "jump", then align the mark 13a with the starting point PI of block B2 and click "End". ” is pressed. In this way, the needle drop point moves from PIG to Pl. After pressing key 141 to set the embroidery stitch,
1. While sequentially aligning the mark 13a of the cursor 12 with P2, press the key 14d for specifying "circle", and select the point P3.
By pressing the key 14n, a circle is determined by points PR, p2, and P3, and reading of block B2 is completed. Then, by pressing the key 14h and instructing ``R Medium Digging'', and then pressing the key 14c, the pitch' P = 0.2
Set Ill J. After finishing reading the data,
In order to move the needle drop point in advance for the next embroidery pattern, the mark 13 of the cursor 12 is placed on the final point P3 of the B2 block.
a and presses the key 14m to designate "jump", and then aligns the mark 13a with a point Qt separated from point P5 to instruct the end of reading one pattern. key 14
When n is pressed twice □, "jump" from point P3 to point Qt is read and reading of one pattern "!" is completed.

As in the case of pattern "B", the data thus read is subdivided through the input cover pattern display routine and needle drop coordinate calculation routine and stored on the data disk.

The embroidery stitches of the alphabet "B" and the exclamation mark "!" thus input are as shown in FIG. 53.

In this embodiment, the embroidery frame 6 is supported by the support frame 5, and the support frame is moved by the actuating means. However, the embroidery frame may be moved by being connected to the actuating means. good.

In addition, in this embodiment, a structure in which the support frame is moved in the X and Y directions according to the data on the data disk was shown, but the zigzag stitch is performed in which the needles are swung in the horizontal direction by the control of a servo motor, a stepping motor, etc. A sewing machine may be arranged, and the swinging of the needle may be controlled simultaneously with the movement of the support frame based on the data on the data disk.

Further, in this embodiment, a buzzer is used for notification, but a light emitting display such as an LED may also be used.

Furthermore, in this embodiment, not only "embroidery" but also "pattern" may be applied.

As described above, according to the present invention, the first switch (14c, 14d) generates the first signal specifying a circle or arc by manual operation, and the second switch (14c, 14d) generates the second signal as an appropriate command by manual operation. Switch (1
4b, 14n), a reading means having an operating means capable of moving on one plane and generating a coordinate data signal corresponding to the position of the operating means on one plane when the first signal is generated; data creation means for calculating and setting a circle or arc passing through a corresponding predetermined number of reading positions based on the input of a number of coordinate data signals, and setting a needle drop point on the circumference or on the arc; When a circle or an arc is set by operating a predetermined number of first switches, by providing a prohibition means that disables and displays the data creation means when the second signal is generated when the number is other than the predetermined number. If the second switch, such as the key for specifying a straight line or the key for specifying the end of reading, is operated before the first switch has been operated a predetermined number of times, the data creation means does not create needle drop data and displays it. Therefore, it is possible to check for erroneous data input before operating the sewing machine using the created data, and data for circles or arcs can always be created reliably, resulting in the effect of significantly improving work efficiency.

[Brief explanation of the drawing]

1 is a perspective view of an embroidery sewing machine, a tablet, and a display device; FIG. 2 is a front view of a cursor for data input; FIG.
Figure B is a diagram showing how the pattern is divided into blocks, Figure 4 is a general flowchart of data processing by the control means of the present invention, Figure 5 is a flowchart of data input and checking, Figure 6 is a data display flowchart, and Figure 7. 8.9 is a flowchart for calculating the needle drop point from data and storing it in the data disk, FIG. 8.9 is a control flowchart for the sewing machine, FIG. Figure 11 is a flowchart for reading data within one block, Figure 12A is a diagram for pattern stitching, Figure 12B is a diagram for embroidery stitching, Figure 12C is a diagram for jumping, Figure 13 is a flowchart for checking data within one block, and Figure 13 is a flowchart for checking data within one block. Figures 14 to 19 are diagrams showing specific examples of data checking, Figure 20 is a flowchart for assigning configuration data to a unit, Figures 21 and 22 are flowcharts for calculating the maximum and minimum coordinates of one pattern, and Figure 23 is a flowchart for calculating the maximum and minimum coordinates of one pattern. C
Flowchart for calculating display coordinates in RT, 2nd
Figure 4 is a flowchart that gives different color display codes for each block, Figure 25 is a flowchart that calculates the center coordinates and radius of a circle or arc, Figure 26 is a flowchart that specifies the type of swing, and Figure 27.28. The figure is a flowchart for calculating the needle drop point when specifying the swing direction.
Fig. 29 is a flowchart for calculating the coordinates of the intersection of the unit and the straight line Ln, Fig. 30 is an explanatory diagram of specifying the needle drop point in specifying the swing direction, and Figs. 31A to 31C are the flowchart for calculating the coordinates of the intersection of the unit and the straight line Ln.
Figure 32 is a diagram showing the positional relationship when the intersection of the straight line Ln and each unit is "2", and the intersection of the straight line Ln and each unit is "2".
3j is an explanatory diagram, FIG. 33 is an explanatory diagram when the intersection of the straight line Ln and each unit is "4", and FIG. 34 is an explanatory diagram when the needle drop coordinate is selected from the intersections of each unit Explanatory drawings, Figures 35 and 36 are flowcharts for calculating the needle drop point in the middle swing, Figure 37 is an explanatory diagram for specifying the needle drop point in the middle swing, and Figure 38 shows the stitches for preventing clogging in the middle swing. , Figure 39 is a middle diagram of a circle, Figure 40 is a flowchart for calculating pattern stitches, Figures 41 and 42 are flowcharts for storing needle drop coordinates in a data disk, and Figure 43 is a flowchart for storing needle drop coordinates in a data disk. A flowchart for adding a directory part. Figures 44 to 49 are diagrams of the reading state of pattern rB. Figures 50 to 52 are diagrams of the reading state of pattern rij. Figure 53 is a diagram of the reading state of pattern r.
It is a diagram of embroidery stitches of B and “!”. Applicant's name: Tokyo Heavy Equipment Industry Co., Ltd. εS ” RETURN −χsl; t C reef 11 J NON' ゞ6J vomit, 9 points
6J=OJ・-1 +14 days 15 days 16 days 17 days 23 days 24 days Ren V″″ 35 days old, 36 years old

Claims (1)

[Claims] A first switch (14c, 14d) that generates a first signal specifying a circle or an arc by manual operation, and a second switch (14c, 14d) that generates a second signal that is an appropriate command by manual operation.
4b, 14n), and an operating means that allows movement on one plane.
A reading means that generates a coordinate data signal corresponding to the position on one plane of the operating means when the signal is generated, and a circle or an arc that passes through a corresponding predetermined number of reading positions based on input of a predetermined number of continuous coordinate data signals. a data creation means for setting a needle drop point on a circumference or an arc; and a data creation means for inactivating the data creation means when a second signal is generated when the number of occurrences of the coordinate data signal is other than the predetermined number. A data input device for an embroidery pattern sewing machine, comprising: