JPS6260587A - Sewing machine capable of indicating stitch position - 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 sewing machine that can sew various sewing elements such as letters and patterns, and more particularly to a sewing machine that can specify the sewing position of the sewing elements. .

(Problems to be solved by the prior art and the invention) Conventionally, in sewing machines for embroidering characters such as alpha vents and kanji, the sewing machine is composed of multiple digit numbers and alpha heads to correspond to each character. After inputting the code from the sewing section and the coordinates of the sewing position, the sewing data corresponding to the code is read from the storage device, and embroidery is performed based on the sewing data and sewing position data. It has become so.

However, with this conventional sewing machine, you have to search and input the code corresponding to each character from a code list, or
There was a problem in that it was necessary to input numerical values for the coordinates indicating the sewing position, which was very time-consuming. This work is a major factor in lowering production efficiency, as attaching names to fabrics is a high-mix, low-volume production work such as sewing.

(Object of the Invention) The present invention was made to solve the above-mentioned problems, and its purpose is to easily input the sewing position of the element to be sewn, thereby making it possible to edit the U-shaped element. To provide a sewing machine capable of specifying a sewing position and capable of efficiently performing sewing work by shortening the time required for assembly.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a needle that is moved up and down across a work cloth support surface, and stitches are formed on the work cloth on the work cloth support surface. a seam forming device that forms a seam, a clamping device that removably clamps the work cloth with the tightening region set in a divided state, a feeding device that moves the clamping device to apply feed to the work cloth; an input device having a sewing element array section in which sewing elements such as letters and patterns are arranged and displayed, a designation member for designating the sewing elements on the sewing element array section, and sewing data corresponding to each of the sewing elements. and a storage means configured to control the operation of the stitch forming device and the feeding device based on sewing data corresponding to a designated sewing element, and to control the operation of the stitch forming device and the feeding device based on the sewing data corresponding to the designated sewing element, A sewing position specifying area corresponding to the sewing area is provided, and the sewing position of the sewing element is specified within the sewing position specifying area by the specifying member.

(Operation) Therefore, when a sewing element is designated by a designation member on the sewing element array section of the input device and the sewing position of the sewing element is designated within the sewing element designation area of the input device, the sewing data corresponding to the sewing element is and the sewing position data, the stitch forming device and the feeding device are operated to sew the sewing element into the sewing area defined by the clamping device.

- (Example) Hereinafter, an embodiment of τ that embodies the present invention will be described with reference to the drawings. As shown in FIG. 2, an arm portion 3 of the sewing machine is placed on the work cloth support surface 2 of the sewing machine table 1, and on the right side of the arm portion 3 is a shaft for rotating the main shaft (not shown) of the sewing machine. A sewing machine motor 4 is attached. A needle bar 6 is attached to the left side of the arm portion 3 and has a needle 5 at its lower end and is moved up and down as the main shaft of the sewing machine rotates. A thread ring catcher (not shown) is built into the sewing machine table 1 so as to face the needle 5 and cooperates with the needle 5 to form a stitch on the work cloth W on the work cloth support surface 2. The thread loop catcher and the needle 5 constitute a stitch forming device.

Below the needle 5, a ring-shaped clamping device 7 is disposed on the workpiece cloth support surface 2 to removably clamp the workpiece cloth W while dividing the sewing area. It is connected to 8.

This feeding device 8 is equipped with a pair of pulse motors (not shown) that are rotationally driven in synchronization with the vertical movement of the needle 5. ) and feed is applied to the work cloth W.

On the upper surface of the right side of the sewing machine table 1, a tablet board 9 and an input bezel 10 as a designation member are arranged, and a display device 11 consisting of a CRT display is also arranged. A sewing element array section 12 is provided on the tablet board 9, and in the array section 12, sewing elements 13 such as various characters and patterns are arranged and displayed in a state where each element is partitioned. By specifying one sewing element 13 using the input ben 10, that sewing element 13 is displayed on the display device 11. Incidentally, the tablet throat board 9 and the input vent 10 constitute an input device (2).

A sewing position designation area 14 is provided on the right side of the sewing element arrangement section 12, which is made up of a pair of coordinate axes X and Y that are perpendicular to each other and a circle C centered on the intersection of the two oscillation axes X and Y. . This sewing position designation area 1'4 is provided corresponding to the sewing area so as to have approximately the same size as the sewing area defined by the clamping device 7, and within this sewing position designation area 14, By specifying a sewing position using the input ben 10, its coordinate data is input and displayed on the display device 11.

Furthermore, various function keys 15 and numeric keys 1 from "1" to "9" are provided on the rear side of the sewing element array section 12.
6 are arranged.

Next, the electrical configuration of this embodiment will be explained. 1st
20 shown in the figure is a central processing unit (CPU), and the CPU 20 has a random access memory (RAM).
21 and a read only memory (ROM) 22 are connected. The ROM 22 contains a data compilation program for creating sewing element data by combining various sewing elements.

Various control programs are stored, such as a data registration program for storing the data on the floppy disk 28 and a sewing program for performing sewing based on the stored data.

By specifying the numerical keys 16 using the input panel 10, the various programs described above are selected, and the CPU 20 sets a mode corresponding to the program.

The CPU 20 outputs a drive signal to the sewing machine motor 4 via an input/output interface 23 and a sewing machine motor drive circuit 24. Therefore, the sewing machine main shaft is rotationally driven by the sewing machine motor 4, and the stitch forming device is operated.

Further, in the vicinity of the sewing machine motor 4, a detection device 25 is provided on the arm portion 3 of the sewing machine for detecting the needle up position corresponding to the top dead center of the needle 5 and the needle down position corresponding to the bottom dead center.
is attached, and a detection signal output from the detection device 25 is input to the CPU 20 via the input/output interface 23.

Based on the detection signal from the detection device 25, the CPU 20
outputs a drive signal to a pair of pulse motors (not shown) of the feeding device 8 via the input/output interface 23 and the drive circuit 26. As a result, the needle 5 is connected to the workpiece cloth W.
The feed device 8 is operated with the shell protruding upwards.

On the other hand, the CPU 20 has an input/output interface 23.
A floppy disk drive device 27 is connected via the
A floppy disk 28 is removably attached to the floppy disk drive device 27. This floppy disk 28 stores sewing data corresponding to code data of various sewing elements consisting of various kanji, hiragana, katakana, alphanumeric characters, numbers, patterns, and the like.

Then, with the data editing mode set, one sewing element 13 is specified by the input ben 10,
When the code data corresponding to the sewing element 13 is inputted, the CPU 20 reads the sewing data corresponding to the code data from the floppy disk 28 and temporarily stores it in the RAM 21.

Also, circle key 15. When two points spaced apart from each other are specified using the input pen 10 on the sewing position specification area 14 while the circular sewing area setting mode is set based on the operation of the ci, the CPU 20 uses the coordinates of each point.
A circular sewing area Ac is set with one point as the center and passes through the other point, and the sewing area Ac is shown in Figure 5 (
C) is displayed on the display device 11 as shown by the two-dot chain line.

Furthermore, with the rectangular sewing area setting mode set based on the operation of the box key 15c, the sewing position designation V
When two points separated from each other are designated by the input pen 10 on the J area 14, the CPU 20 calculates the following points based on the coordinates of each point.
The area surrounded by four straight lines passing through these two points and extending parallel to each coordinate axis indicate.

The sewing areas Ac and Ab are set within a range that does not exceed the width of the sewing area defined by the clamping device 7.

Next, the operation of the sewing machine configured as described above will be explained. First, when the power is turned on to the sewing machine in step Sl shown in FIG. 4(a), the CPU 2.0 displays a menu for selecting each program shown in FIG. 5(a) on the display device 11. Here, number key 16 on tablet board 9
When a data editing program is selected by specifying with the input pen 10, the CPU 20 sets the data editing mode.

Then, the CPU 20 displays a framework F for creating a data list shown in FIG. 5(b).

Next, in step S4 shown in FIG. 4(b), one sewing element 13 on the sewing element array section 12 of the tablet board 9 is
When specified by the human pen 10, the determination result becomes YES. Subsequently, in step S5, the enter key 15a of the function keys 15 is pressed by the input pen 10.
If specified by , the determination result will be YES. Thereby, the CPU 20 selects the specified sewing element 13 from the fifth
As shown in FIG. 2B, the sewing data is displayed within the framework F, and the sewing data corresponding to the sewing element 13 is read from the Fronbi disk 28 and stored in the RAM 21.

The processes from step 84 to step S6 described above are repeated until the end key 15b of the function keys 15 is designated in the next step S7, and the combination data of the sewing elements 13 is created based on the repeated operation. , sewing elements 13 are displayed within the framework F in the specified order.

Next, the process advances to step S8 shown in FIG. 4(c), and the CPU
Reference numeral 20 performs a determination for specifying the shape of the sewing element. That is, it is determined whether either the box key 15C or the circle key 15d among the function keys 15 has been operated, and the box key 15c is
When the button is operated, the rectangular sewing area setting mode is set.

Therefore, in the next step S9, when two points spaced apart from each other on the sewing position designation area 14 are designated and inputted by the input ben 10, the process proceeds to step SIO, where the CPU 20
Based on the coordinates of the above two points, an area surrounded by four straight lines extending parallel to the coordinate axes X and Y through the two points is set as a rectangular sewing area Ab, and the dotted line As shown in , the rectangular sewing area Ab is displayed on the display device 11 together with the first data ("love" in this embodiment) among the sewing elements inputted as described above.

On the other hand, when the circle key 15d of the function keys 15 is designated by the input bezel 10 in step S8, the circular sewing area setting mode is set. Therefore, in the next step S11, when two points separated from each other on the sewing position designation area 14 are manually specified by the input ben 10, the process proceeds to step S12, and the CPU 2
0 sets a circular sewing area AC centered on one point and passing through the other point based on the coordinates of the two points, and
The circular sewing area Ac is displayed on the display device 11 along with the first data of the sewing elements specified manually as described above, as shown by the two-dot chain line in FIG.

Subsequently, in step 313, when the enlargement rate or reduction rate is input by specifying the numerical key 16 with the input bench 10, the determination result becomes YES, and the fifth
As shown in Figure (c), the enlargement/reduction ratio is displayed within the frame F of the display device IO. Next, in step S14, by specifying the inclination angle of the sewing element with respect to the coordinate axes x and y using the numerical keys 16 and the input bezel 10, the determination result becomes YES, and the inclination angle is displayed together with the scaling factor. Displayed within a framework F of the device 10.

Then, in step S15, by specifying and inputting the sewing position on the sewing position designation area 14 using the manual pen 10, the determination result becomes YES, and the sewing element 13 is sewn as shown in FIG. 5(C). The position is displayed on the display device 11 by a cross-shaped cursor K, and a sewing position X is displayed.

The Y coordinate is displayed within framework F.

As described above, in this embodiment, circular or rectangular sewing areas can be selectively set, and each sewing area is displayed, so that the sewing position of each sewing element 13 can be set within each sewing area. can be reliably set.

Further, each data of the enlargement/reduction ratio, the square freeze, and the coordinates corresponding to the sewing position is stored in the RAM 21 in combination with the sewing data.

Next, the process advances to step S16, and when the forward key 15e of the function keys 15 is designated by the input pen 10, each data such as the enlargement/reduction ratio etc. corresponding to the second sewing data in FIG. 5(b) In order to input , the display is switched in step S17.

Therefore, by repeating the processes from step 313 to step S15, data such as the enlargement/reduction ratio and sewing position corresponding to the second sewing data are input.

When the input of each data such as the enlargement/reduction ratio corresponding to all the sewing data has been completed, in step S16, if the end key 15b of the function keys 15 is designated with the input pen 10, as shown in FIG. Returning to step S2 in a), the menu shown in FIG. 5(a) is displayed.

In this menu display state, when a data registration program is selected by specifying a numerical key on the tablet board 9 with the input pen 10, the CPU 20 sets the data registration mode. In this state, the CPU 20 determines in step S20 shown in FIG. 4(d) whether or not the floppy disk 28 for data registration is attached to the floppy disk drive device 27, and if the result is YES, the CPU 20 performs step S20. In S21, it is determined whether a registered file name has been input. Therefore, in step S21, if a file name consisting of multiple words is input by using the sewing elements 13 on the sewing element array section 12 or the numeric keys 16 on the tablet board 9, the determination result is YE.
Become S.

Next, in step S22, when the enter key 15a is designated, the input of the file name is completed. Then,
After the passkey 15f is specified and input in step S23,
When the record key 15g is specified and input, step S2
In step 5, it is determined whether the file name has M occurrences.

If there is no overlap, the process advances to step S26, and the CP
The U20 writes the file name data and the combination data of the sewing elements 13 previously stored in the RAM 21 to the Fronbi disk 28, and displays "Registration Completed" on the display device 11 in the next step S27. and step 3
When the enter key 15a is designated in 2B, the file name corresponding to the combination data of the sewing elements 13 described above is set and stored. After inputting this file name, the process returns to step S2 and a menu is displayed.

On the other hand, in step S25, if the file name is duplicated, the process advances to step S29, and a message such as "File name already in use" is displayed. If the enter key 15a is pressed here, the process returns to step 521, and by repeating the processes from step S21 to step S24, another file name can be input.

Now, when sewing according to the combination data of sewing elements 13 edited as described above, in step S2 shown in FIG. 4(a), with the menu displayed, key 16 input pen 10
When the program for data sewing is selected by determining t, the CPU 20 sets the data sewing mode. Therefore, if you input an arbitrary file name, the sewing element 1 corresponding to that file name will be saved from the floppy disk 28.
3 combination data are read out and stored in the RAM 21.

Next, when a start key (not shown) among the function keys 15 is specified using the input pen 10, the CPU 20 controls the sewing machine motor 4 based on the combination data.
and drives and controls the feeding device 8. Therefore, the sewing elements 13 in the combination data are sequentially sewn onto the work cloth W in the clamping device 7.

As described above, in this embodiment, the input device I is provided with a sewing position designation area 14 corresponding to the sewing area defined by the clamping device 7, and the sewing position of the sewing element 13 is set in the sewing position designation area 14. Since the sewing position is specified using the input pen 10 within the sewing machine, the sewing position can be specified easily and reliably, thereby reducing the time required to edit the sewing elements 13 and efficiently performing the sewing work. can.

(Effects of the Invention) As detailed above, the present invention allows the sewing position of the element to be sewn to be easily inputted, thereby reducing the time required to edit the sewing element and efficiently performing the sewing work. It has the excellent effect of being able to

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the electrical configuration of a sewing machine in an embodiment embodying the present invention, Fig. 2 is a perspective view of the sewing machine, Fig. 3 is a plan view of the tablet board, and Fig. 4 (a).
5(d) are flowcharts, and FIGS. 5(a) to 5(c) are explanatory diagrams showing various display states. In the figure, 2 is a work cloth support surface, 5 is a needle, 7 is a clamping device, 8 is a feeding device, 12 is a sewing element arrangement section, 13 is a sewing element, 14 is a sewing position designation area, and 28 is a floppy disk as a storage means. The disc, W is the work cloth, and ■ is the input device. Patent applicant Brother Industries, Ltd. Agent
Patent Attorney On 1) Hirosen 1 to 5 Figure (a) Figure 5 (b) Figure 5 (c)

Claims (1)

[Claims] 1. A needle (5) that is moved up and down across the work cloth support surface (2).
), the stitch forming device forms a stitch in the work cloth (W) on the work cloth support surface (2), and the work cloth (W) is removably held in a state where the sewing area is divided. Clamping device (
7), a feeding device (8) that moves the clamping device (7) to feed the work cloth (W), and a sewing element in which sewing elements (13) such as various characters and patterns are arranged and displayed. Array section (12) and its sewing element array section (1
2) Designation member (
10); and a storage means (28) storing sewing data corresponding to each of the sewing elements (13); to control the operations of the stitch forming device and the feeding device (8), and the input device (I) is configured to input a sewing position designation area corresponding to the sewing area defined by the clamping device (7). (14), and the sewing position of the sewing element (13) is specified by the specifying member (10) within the sewing position specifying area (14).