JPH0529471B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides data for a sewing machine that moves a needle and a work cloth relative to each other based on given sewing data to form multiple stitch rows on the work cloth. Regarding the creation device.

[Prior Art] Conventionally, this type of device includes a stitch pitch setting switch for multiple stitch rows to be sewn, a stitch row number setting switch, and a switch for setting the number of multiple stitch rows to be sewn.
A reader that generates both outer end positions as position data, a memory that stores the position data, and a sewing line, starting point, and final point for each number of stitch rows based on the position data and the number of stitch rows. It consisted of a computing unit that creates sewing data by determining and dividing the sewing data at set pitches and equally distributing the remaining components to each pitch.

[Problems to be Solved by the Invention] Conventionally, since the arithmetic unit performs the above-mentioned calculations, when the lengths of the stitch rows are different as shown in FIG. The generated surplus component differs for each stitch row, and in the case of multiple stitch rows, the stitches are not aligned in the row direction, resulting in a disadvantage that the aesthetic appearance is significantly impaired.

[Object of the Invention] The present invention has been made in order to eliminate the drawbacks of the conventional technology. An object of the present invention is to provide a sewing data creation device for a stitch row.

[Means for solving the problem] The present invention determines each stitch row to be sewn based on the position data generated by the reading means and the number of stitch rows set by the stitch row number setting means. In addition to determining the sewing line to be represented, the starting point and final point of each stitch row are determined along a straight line, and the sewing line is divided at the pitch set by the stitch pitch setting means to create sewing data. The calculation means has a function of distributing the surplus component generated during division performed for each stitch to specific positions other than the start and final pitches of each stitch row.

[Operation] In the present invention, based on the position data generated by the readout means and the number of stitch rows set by the number of stitch row setting means, the calculation means calculates the sewing line, starting point and The final point is determined, each stitch row is divided at a set pitch, and the surplus components generated at the time of division are distributed to specific positions excluding the start and final pitches to create multiple stitches that are aligned in the row direction. Sewing data for forming the sewing machine is created, and the sewing data storage means stores the created sewing data.

[Example] The details will be described below with reference to an example embodying the present invention.

In the figure, a work table 1 has a coordinate reading device 10 consisting of a tablet board 2 and a cursor 3.
A position data registration switch 4 is installed at this cursor 3. The cursor 3 is placed at an arbitrary position on the tablet board 2, and when the position data registration switch 4 is closed, the position of the reading point of the cursor 3 on the tablet board 2 is stored as position data by the control unit. It is configured to output to the position data memory 5 via 7.

This position data memory 5 is connected to the coordinate reading device 1.
It is configured to store the position data outputted by 0 respectively.

The work table 1 also includes a numeric keypad 12,
A display device 13, a stitch row number setting mode key 14, and a stitch pitch setting mode key 15 are installed.
control units 7 each including a central processing unit;
It is connected to the. This display device 13 is composed of a 7-segment LED, and the numeric keypad 1
The data input by the controller 2 is displayed via the control unit 7. When the stitch row number setting mode key 14 is closed, the control unit 7 stores the data input through the numeric keypad 12 as the number of stitch rows, and when the stitch pitch setting mode key 15 is closed. When the sewing machine is closed, the data entered through the numeric keypad 12 is stored as the stitch pitch.

A sewing data creation mode key 16 is installed on the work table 1, and this sewing data creation mode key 16 is connected to the control unit 7.

The control unit 7 is configured to perform the following operations when the sewing data creation mode key 16 is closed.

The control unit 7 reads the position data stored in the position data memory 5 and calculates and determines a formula representing a straight sewing line having the position data as both ends. Also, based on the number of stitch rows memorized by closing the number of stitch row setting mode key 14, the line segment connecting the starting point and the final point of both sewing lines is divided into equal parts, and the number of equally divided points is determined. The sewing machine is configured to temporarily store data as the starting point and final point of the sewing line inside the sewing line, and calculate and determine a formula that represents the line segment connecting both points as the sewing line.

Further, the control unit 7 divides each sewing line by one pitch from the final point to the starting point based on the pitch memorized by closing the stitch pitch setting mode key 15, and divides the sewing line from the starting point to the final sewing line. Divide every pitch towards the point, continue this until the remaining component is shorter than the length of 1.5 pitches,
It is configured to calculate and temporarily store division point data representing division points.

The control unit 7 calculates sewing data from the starting point data, final point data, and division point data,
It is configured to output this to the sewing data memory 6.

The sewing data memory 6 is an external storage device such as a floppy disk, and is configured to store sewing data from the control unit 7. By connecting this sewing data memory 6 to a sewing machine control device (not shown) and starting the sewing machine,
Based on the sewing data, the needle and the workpiece cloth are moved relative to each other, and multiple stitch rows are formed on the workpiece cloth.

Next, its effect will be explained.

First, the operator affixes the paper T on which the multiple stitch rows to be sewn are drawn on the tablet board 2, closes the power switch, and activates the control unit 7.

Next, the operator stores the number of stitch rows in the control unit 7 using the numeric keypad 12 and the stitch row number setting mode key 14, and controls the pitch using the numeric keypad 12 and the stitch pitch setting mode key 15. unit 7
to be memorized.

The operator also moves the cursor 3 sequentially on the tablet board 2 so that the readout point sequentially overlaps both outer ends (A to D) of the multiple stitch row drawn on the paper T, and sets the position. The data registration switch 4 is closed to store the position data of the readout points in the position data memory 5.

After this, the operator presses the sewing data creation mode key 1.
By closing 6, the control unit 7
It works as shown in the figure.

In step 21, the control unit 7 reads the position data from the position data memory 5, and calculates and determines a formula representing a line segment having both ends of the position data as a sewing line. As a result, sewing lines (L1, L
2) is determined.

In step 22, the control unit 7 divides the line segment connecting the starting points (A, C) and final points (B, D) of both sewing lines into equal parts based on the number of stitch rows, and divides the line segment into equal parts. The data of the points are respectively set as the starting point (S1, S2, etc.) and the final point (E1, S2, etc.) of the inner sewing line.
E2, etc.), and a formula representing a line segment having both ends thereof is calculated and determined as an inner sewing line (K1, K2, etc.).

In step 23, the control unit 7 specifies one sewing line, divides it by one pitch from the final point to the starting point, and temporarily stores the dividing point data.

In step 24, the control unit 7 divides the specified sewing line by one pitch from the starting point to the final point, and temporarily stores the dividing point data.

In step 25, the control unit 7 determines that the remainder component generated during the division in step 24 is 1.5
It is determined whether the length is longer than the pitch, and if the length is longer, the process returns to step 24, and if it is shorter, the process proceeds to step 26.

At step 26, the control unit 7 determines whether the division operation for all the sewing lines has been completed. If not, the process returns to step 23, and when it is completed, the process proceeds to step 27.

In step 27, the control unit 7 calculates sewing data from the temporarily stored starting point data, final point data, and dividing point data, and outputs the sewing data to the floppy disk for storage. Thereafter, the operator connects the floppy disk to the control device of the sewing machine and starts the sewing machine, thereby forming multiple rows of stitches on the workpiece cloth.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and the surplus components generated during division may be combined at a stitch pitch separated by a predetermined pitch from the final pitch of each stitch row.

[Effects of the Invention] Since the present invention is configured as described above, it is possible to create sewing data for forming a beautiful multiple stitch row with stitches aligned in the row direction.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment embodying the present invention,
Figure 2 is a block diagram showing its electrical configuration, Figure 2 is an overview diagram showing its entirety, Figure 3 is a flowchart showing the main operations of the control unit, and Figure 4 is a sewing machine based on sewing data of the present invention on work cloth. An explanatory diagram for forming a multiple stitch row. FIG. 5 is an explanatory diagram of a conventional multiple stitch row. 2 is a tablet board, 3 is a cursor, 5 is a position data memory, 6 is a sewing data memory, 7 is a control unit, 14 is a mode key for setting the number of stitch rows, 1
5 is a stitch pitch setting mode key.

Claims (1)

[Claims] 1. A data creation device for a sewing machine that moves a needle and a workpiece cloth relative to each other based on given sewing data to form a row of multiple stitches on the workpiece cloth, comprising: Stitch pitch setting means for setting the pitch of the stitch rows; Stitch row number setting means for setting the number of stitch rows of the multiple stitch rows to be sewn; , reading means for generating position data of both outer end positions; storage means for storing position data generated by the reading means; and storing each stitch row to be sewn based on the stored position data. a calculation means for determining a sewing line to be represented, determining a starting point and a final point of each stitch row along a straight line, dividing the sewing line at a set pitch, and creating sewing data; The calculation means distributes the surplus component generated during the division performed for each stitch row to specific positions excluding the start and final pitches of each stitch row, thereby making the stitches aligned in the row direction. Multiple stitching for a sewing machine, characterized in that it includes a function for creating sewing data for sewing, and a sewing data storage means for storing the sewing data created by the calculation means. Sewing data creation device for stitch rows.