JPS6232994A - Arbitrary character input apparatus in 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 [Field of Industrial Application] The present invention relates to a device for recording stitch position information of a ffl sewing machine.

[Prior art and its problems]

For example, Japanese Patent Laid-Open No. 53-15959 discloses a system in which stitch coordinate information is input by sequentially pressing and tracing a flat surface for specifying stitch position coordinates using ferric acid or the like.
There is a number.

However, with conventional methods like this,
This is preferable as information for forming characters of uniform thickness using stitches, but it is also useful to obtain information for forming characters whose line width changes appropriately, such as decorative characters or brush calligraphy. However, this is not necessarily appropriate because the input operation becomes cumbersome.

[Means for solving the problems and their effects] The present invention provides a means for outputting a rectangular coordinate signal to which a pen body is attached,
The pointed head of the pen body traces the average center line of the character line width on the material 5, so that the motion locus of the pointed head is sequentially decomposed into rectangular coordinates and the rectangular coordinate signal is output. is installed, and when you push the grip toward the pointed head, the pointing points such as a pair of needle tips will separate on a straight line along the material surface with the pointed head as the center, and The direction is adjusted by rotating the pen body, and by aligning each pointing point with each contour of the character line, a release signal indicating the distance from the corresponding Cartesian coordinate of the tip to each pointing point on each contour is generated. and a rotation angle signal indicating the inclination angle with respect to the rotation reference of the straight line connecting each indicated point are outputted from each of these signal output means, and the calculation means calculates the rectangular coordinate signal and one rotation signal.

From the release signal, set each needle drop point at the corresponding position of each indicated point corresponding to the relevant orthogonal coordinates, set each needle drop point in the same way sequentially as the orthogonal coordinate moves, and set these needle drop points. Separate stitches can be formed by setting the steps to be performed alternately.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 10 is a schematic diagram of the structure of a sewing machine according to the present invention, and its structure is the same as that shown in Japanese Patent Application Laid-Open No. 120059/1985, filed by the same applicant as the present application. In the figure, each switching clutch +2 (2) attached to the sewing machine body (11) is operated by a selection dial (3), and in one switching state, each pulse motor (2) is operated by a selection dial (3).
41+41 cr) Each reciprocating rotational movement is transmitted as a lateral rocking movement of the needle bar (5) and a fabric feed adjustment movement of the feed dog (6), and in the other switching state, the embroidery is transmitted via the arm (7), etc. The movement of the frame (8) is transmitted in the lateral direction (referred to as the X direction) and in the longitudinal direction (referred to as the Y direction). The embroidery frame (8) is removable and is attached only when embroidering is performed. The control circuit section (9) is equipped with a microcomputer, etc., which will be described later, and is equipped with a needle bar (5).
) swing and feed # (6) adjustment, and embroidery hoop (8
) controls each movement, etc.

FIG. 1 is an external view of the device of the present invention, and the input device main body opening O is movable in the front-rear direction of the figure (this is referred to as the Y direction in relation to the Y direction of the embroidery frame (8)). A Y-direction movable body α is attached to the Y-direction movable body a, and an X-direction movable body α2 movable in a direction orthogonal thereto is attached to the Y-direction movable body a. The scanning pen 01 has its pen body α→ rotatably attached to the X-direction moving body (6). The upper surface of the input device main body No. is provided with a flat touch panel 09, on which a material 00 such as printing paper is placed. As shown in FIG. 2, in the scanning pen Q1, one end of the pen body α◆ forms a pointed head αη, and the other end of the pen body 04 is attached with a grip portion 0→ which is an operating portion. In the case where no external force is applied, the pointed head aη is close to the material aQ, and when the first gripping portion C1l is pushed down slightly in the figure, the X-direction moving body (6) moves 1 It rotates slightly against the reaction force of a spring (not shown) so that the pointed head o'i) presses against the surface of the touch panel α.

As the touch panel 4, for example, catalog tmPc-6051 manufactured by NEC Corporation is used.

Then, each moving position of the X-direction moving body (2) and the Y-direction moving body circle is extracted from the output signal line (1101) as a rectangular coordinate signal of the cusp head aη.

The grip part 0 allows linear movement in the vertical direction of the figure with respect to the pen body α◆, and is attached to the spring 1. lc is urged upward, and is held at a predetermined position by a stopper (not shown).
This is locked. .

A pair of indicator members) (E) are pins (C) as shown in Figure 3.
is pivoted to the pen body Q4, and each end is connected to each pointing point (
e) (2), and the other end hw faces the inclined part @l provided on the grip part α→, and is brought into contact with this by a pair of springs (1), and usually each indicated point as shown in the figure. (C) (C) is closed in agreement with the pointed head αη under the equality constraint, and the grip part 0 mark is released from the lightly pressed down state? When pushed further against υ, the indicated point (E) 4 moves along the line of motion (31
), which in this case corresponds to a straight line (32) orthogonal to the curve, is separated by J on the circular arc line. The pointed head is 0η.

When using it, it is used to trace the average center line of the character line width of bold characters (33) on material QI printing, etc., and the indicated points (C) and (E) are the size of the character line width. This is for tracing the outline of a character line while changing the degree of separation depending on the shape. A transmission type photosensor (34) is attached inside the grip part 08. On the other hand, the pen body Q4
A detection body (35) is attached to the body, and when the grip part 0 moves up and down in the figure, a window (36) provided on the detection body (35) opens.
The amount of human light passing through changes, and the photo sensor (34) detects this and sends the instruction point Chi (c) from the output signal line (37).
Output as a release signal.

The pen body C141 and the grip part 0 mark are the X direction moving body α1
On the other hand, it can rotate integrally around the line of motion (31), and a transmission type photosensor (38) detects the rotation angle. A detection body (39) is formed on the pen body α◆, and the detection body (39) is provided with a window (40) as shown in Fig. 4, and passes through the window (4o) in response to one rotation. When the amount of light increases, the photosensor (38) detects this using the relative position shown in FIG. 4 as a rotation reference, and outputs it as a rotation angle signal from the output signal line (41).

The jump switch (42) is provided on the X-direction moving body (6) and is designed to be operated when the progress of the stitches becomes discontinuous, such as when the strokes of the characters (33) change. The jump signal is connected to the output signal line (43) for control to be described later.
Output from.

FIG. 5 is a block diagram of the control circuit, and the main mourning badges are housed in the control circuit section (9) of the sewing machine. central processing unit (cpty), read-only storage (R
OM), temporary storage (RAM), input/output board (I
C) constitutes a microcomputer and controls each program. Each output signal 1 (11αe
(37) Each rectangular coordinate signal X in the X direction and Y direction output from (41). j yo % open/close signal is converted into a second shift signal, and is input to the microcomputer together with the jump signal JMP from the output signal line (43). The key matrix (KM) is constituted by a pattern selection switch (not shown) provided on the sewing machine. Display drive unit (DV,
) displays the operation results of each switch on a display section (DI8P) provided separately on the sewing machine. Motor drive unit (o
vt) drives each pulse motor f41f41. The speed control unit (sp) controls the sewing machine motor (M
) to drive.

In the above configuration, the coordinate storage operation will be explained below.

Referring also to the zigzag coordinate formation explanatory diagram of FIG. 6 and the control flowchart of FIG. 7, in the data input program of FIG. 7(A), when a start switch is separately operated, the program starts. Scanning pen 03 is operated. When the rectangular coordinate signals X0, Yo or rotation angle signal θ change by more than a predetermined unit amount, each of these signals X, , Y, ,
θ and the opening signal 2 are stored in memory locations addressed by the code HL of these storage registers, respectively, while advancing the address. Then, each time the amount changes by more than the predetermined unit amount, it is stored sequentially. Each signal X0, Y, .

0 and 2 each consist of a 16-bit code, and the data in each row of the table below is the data that determines the coordinates of each point (needle melting point).

When the jump switch (42) is operated, the rectangular coordinate signals x, , y at that time are memorized and the opening signal 2 is stored.
The storage location for the rotation angle signal θ is an open space, and a code 0 consisting of 16 bits is stored as a function signal FUNC indicating that it is a jump signal or an end signal to be described later.
Furthermore, a code 2 consisting of 16 bits indicating a jump signal is stored. Then, open space will be provided in the same manner as above. When a separately provided termination switch is operated, a function code O and a code 1 consisting of 16 bits as an termination signal gND are stored, and after similarly providing a vacant space, the process returns to the main loop.

The data processing program shown in FIG. 7(B) is executed at the appropriate time when the data input program is completed. Each of the stored data is read out, and if it is not function data, the rectangular coordinates of the point corresponding to each stitch are calculated as follows. Note that when the rotation angle signal θ is a negative value, the calculation θ←360−θ is performed.

In Fig. 6 1, for the rectangular coordinates (xo, yo) of the cusp aη on the mean center # (44), the indicated point
(C) is the point (pt) (If the separation interval is 2 at p, and the rotation angle is θ with respect to the X axis, the coordinates of the needle drop point (P,) are 2% ==X, + (Z/2
) cos θ, Y=Y, + (Z/2) sin θ, and the coordinates of the next needle drop point (P,) are calculated using the following data group, X = X6 (Z/
2) aosθ, Y==Y0−(Z/2)sinθ
It is calculated by These calculations of needle drop points (PI) (Pff) are performed individually by changing the flag F alternately, and the results are stored.

In FIG. 6, each needle drop point is indicated by a circle. Also, if the data of open signal 2 is 0, do not use the above calculation.
-Xo and X4-Yo are stored in the same way after conversion. If this is a jump code as a result of the previous data read,
As a separate process, a computation is performed to feed the embroidery frame (8). In the case of an end code, the absolute coordinates x and y calculated above are converted into absolute coordinates. Once these operations are completed, the process returns to the main loop.

FIG. 8 shows another embodiment of the scanning pen, and parts similar to or common to scanning pen 0 are given the same reference numerals with primes and their explanations are omitted.

Parallel light rays are irradiated from a light source with a lens (46) above the pen body of the scanning pen (45) toward a convex lens (47), and a fixed slit plate (48) shown in FIG. ) and a movable plate (49) that moves to the right or left in the figure as the grip part 0 moves in the vertical direction.
The light flux passing through the triangular window (50) of 49) and the slit (51) of the slit plate (48) illuminates the grip part (with a separation width corresponding to the movement of the former) in the vicinity of the pointed head 0η. The α low reflection surface of the pen body facing the reflective photosensor (52) has a different reflectance depending on its rotational position, and the photosensor (52) changes its rotational angle depending on the amount of light it receives. To detect.

〔Effect of the invention〕

As described above, according to the present invention, when the tip of the scanning pen is aligned with the average center line of the character line width and the pointing point is moved while the pointing point follows the character outline while changing the suppression of the gripping part, the line width of one character is Since the coordinates of each zigzag stitch according to the coordinates are automatically memorized, the operation is simple and data can be entered quickly.

[Brief explanation of the drawing]

Figure 1 is an external view of a device showing an embodiment of the present invention, Figure 2 is a sectional view of a scanning pen, and Figure 3 is an In-It cross section 1 of Figure 2.
Figure 4 is an IV-IV cross-sectional view of Figure 2, Figure 5 is a block diagram of the control circuit, Figure 6 is an explanatory diagram of zigzag coordinate formation, and Figures 7 (A) and (B) are flowcharts of control. , FIG. 8 is another embodiment of a scanning pen, FIG. 9 is a view taken in the direction of arrow ◯ in FIG. 8, and FIG. 10 is a schematic structural diagram of a sewing machine according to the present invention. In the figure, the Y-direction moving body 01) and the X-direction moving body 04 are the main elements of the Cartesian coordinate signal output means, and the photosensor (34) (
34) is the main element of the opening signal output means, the photo sensor (
38) (52) is the main element of the rotation angle signal output means,
The central processing unit (CPU) is the main element of the calculation means. Patent applicant Janome Sewing Machine Industry Co., Ltd. Invention
person Hanyu
Yoshi Ozaki 4 times
Kenji Kato Figure 1

Claims (1)

[Claims] One end of the pen body has a pointed head for tracing the average center line of the character line width of the material, and the pen body can be made equivalent to the pointed head by operating an operating section attached to the pen body. a release signal output means for providing an indication point unique to the pen main body along the material surface to perform a release operation on one side and the other side, and outputting a release signal corresponding to the amount of separation; A material is placed thereon, and the pen body is rotatably mounted with the pointed head facing the material, and as the pointed head traces over the material, the trajectory of the movement of the pointed head is determined. a rectangular coordinate signal output means for decomposing into orthogonal coordinates and outputting a rectangular coordinate signal thereof; and a rotation reference position of the pen body attached to the rectangular coordinate signal output means, with reference to a predetermined relative position of the rotation. a rotation angle signal output means for outputting a rotation angle signal according to the angle; and a rotation angle signal output means for making the orthogonal coordinate signal correspond to the coordinates of the average core line, and determining the rotation angle signal and the opening of the one for the orthogonal coordinate signal. The related opening signal is calculated to correspond to the equivalent distance from the coordinates of the average center line to the needle drop point on one character line contour and the equivalent inclination of the needle drop point with respect to the rotation reference, and then the separation signal is calculated to correspond to the equivalent distance from the coordinates of the average center line to the needle drop point on one character line contour, and the equivalent inclination of the needle drop point with respect to the rotation reference, and continues to be at least perpendicular. When the coordinate signal fluctuates by more than a predetermined value, it is made to correspond to the coordinates of the next average core line, and the rotation angle signal at that time and the opening signal related to the other opening are calculated. An arbitrary character input device for a sewing machine, comprising a calculating means for calculating in accordance with an equivalent distance to a needle drop point on the other character line contour and an equivalent inclination of the needle drop point with respect to the rotation reference.