JPH07292554A - Sewing data creation device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a sewing data creation device capable of simplifying the processing and shortening the processing time even for various sewing data of different formats. [Configuration] When the CPU 1a receives an input process in step 100, first, in step 110, a model specified from the conversion table stored in the ROM 1b based on the model code of the input sewing data. Select the conversion table that matches the code. Next, at step 120, the data block for one stitch of the input sewing data is read in the format of the conversion source. Next, in step 130, the sewing data recorded in the format of the conversion source is read out according to the conversion table, converted into the data of the unified format which is the format of the conversion destination, and recorded. At step 140, it is checked whether the converted sewing data is for the last stitch.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing data creating apparatus for a sewing machine which creates sewing data for pattern patterns such as characters and pictures.

[0002]

2. Description of the Related Art As is well known, industrial electronic sewing machines include
An automatic sewing mechanism for automatically sewing a desired sewing pattern is installed. In this automatic sewing mechanism, preprogrammed sewing data is recorded and held in the storage device, and based on this sewing data, the cloth or needle is automatically controlled according to a predetermined sewing pattern to form a sewing pattern. ing.

The sewing data is written in a storage medium in a storage device, and by exchanging the storage medium, different sewing patterns can be arbitrarily selected and sewing can be performed, which results in labor saving and sewing of the sewing machine. It greatly contributes to the improvement of speed. In this storage medium, a desired sewing pattern or sewing speed and other control data are stored and held according to the sewing operation sequence.

In the usual case, the sewing data stored in the storage medium is composed of the relative displacement of the needle and the cloth for each stitch of the sewing machine that forms the sewing pattern, the sewing speed and other movement control commands. The control information of one sewing pattern is formed as a set of control commands for each stitch.

In recent years, sewing data in the recording medium is visually represented as a figure on a display by using a personal computer or the like, and a pointing device such as a mouse is operated to display a sewing pattern on the display. A sewing data creation device that processes sewing data while confirming changes has also been proposed.

[0006]

In an electronic sewing machine that handles sewing data of this type, there are many models depending on the type of work to be handled and the size of the sewing pattern, and each model has a sewing area. Since optimum sewing data is adopted depending on the size of the sewing machine, the resolution of the cloth feed amount, and the method of controlling the sewing speed, there are sewing data of various formats.

Therefore, when the above-mentioned sewing data creating device is made to correspond to these various sewing data, generally, each format is once converted into a unified format within the sewing data creating device and then the sewing data is processed. It is carried out. However, since the sewing data is usually composed of a group of blocks for one stitch,
In the conventional sewing data creation device, in this conversion process, the sewing data is interpreted for each stitch according to a predetermined (source of conversion) format, and then one stitch of new sewing data is created according to the new format. The process is repeated, which has been a bottleneck in shortening the time required to input the sewing data from the recording medium to the sewing data creation device.

Specifically, first, with reference to the format of the conversion source, a predetermined sewing data value (for example, X feed amount or Y feed amount) is read out, and then the individual data is stored. The set variable (eg, A, B) is temporarily stored as the value of the variable (eg, A = X feed amount,
B = Y feed amount). Next, the value of this individual data is written in the predetermined position set corresponding to the individual data of the new format. That is, since the processing of the sewing data is performed in such a troublesome procedure, there is a problem that the processing of the sewing data takes time.

The present invention has been made in order to solve the above-mentioned problems, and makes it possible to simplify the processing of various sewing data of different formats and to reduce the processing time. The purpose is to provide a device.

[0010]

According to the invention of claim 1 for attaining this object, as illustrated in FIG. 1, a pattern pattern such as a character or a pattern sewn by a sewing machine is associated with a data string. In the sewing data creation device that converts sewing data that differs depending on the sewing machine model into a unified format, the correspondence data of the recording positions of the individual sewing data in the formats before and after the conversion is changed according to the sewing machine model. By referring to the correspondence relation storage means M1 stored as a table and the correspondence relation data stored in the correspondence relation storage means M1, the sewing data of the individual recording positions in the format before conversion is changed to the individual recording positions in the format after conversion. The gist is a sewing data creation device characterized by including a recording means M2 for recording the data as it is.

According to a second aspect of the present invention, one of a plurality of correspondence relation data stored in the correspondence relation storage means M1 according to a machine type code representing a sewing machine type in the sewing data.
The gist of the sewing data creating apparatus according to claim 1 is to select one of them.

According to a third aspect of the present invention, the corresponding relationship data is data indicating a conversion position of a byte and bit offset of individual sewing data, and the sewing according to the first or second aspect of the invention. The data creation device is the main point.

[0013]

In the sewing data creating apparatus according to the first aspect of the present invention, pattern data such as characters and pictures to be sewn by the sewing machine are associated with a data string and different sewing data depending on the model of the sewing machine is converted into a unified format. To process. And
Correspondence relation data stored in the correspondence relation storage means M1 by the correspondence relation storage means M1 according to the sewing machine model, and stored in the correspondence relation storage means M1 by the recording means M2. With reference to, the sewing data at each recording position in the format before conversion is recorded as it is at each recording position in the format after conversion.

That is, according to the present invention, when the conversion process for unifying the sewing data different for each model is performed, the contents of the data are not interpreted and stored in the variable as in the conventional case, but the process is performed. Since the conversion is performed using the correspondence data of the recording positions of the individual sewing data in the formats before and after the conversion, the data processing is simplified and the processing time is shortened.

In the sewing data creating apparatus according to a second aspect of the present invention, one of a plurality of correspondence data stored in the correspondence storage means M1 is selected according to the machine code indicating the machine model of the sewing machine. The detection and use of the specific correspondence data according to the above will be simplified.

In the sewing data creating apparatus according to the third aspect of the present invention, since the correspondence data is the data indicating the conversion position of the byte and bit offsets of the individual sewing data, the correspondence data itself can be simplified. Instead, the time and effort required for data processing using this correspondence data are reduced.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 2, the sewing data creating apparatus of the present embodiment is a well-known CPU 1a, ROM 1b, RAM.
1c, a computer block 1 configured as a logical operation circuit including a common bus 1d, and a keyboard 3, a mouse 5, and a CR connected to the computer block 1.
The input / output device includes a T7 and a recording device 9.

The computer block 1 is based on data (including coordinate values) input by the keyboard 3 and mouse 5 or data read from the recording device 9.
Converts sewing data and creates sewing data. In the ROM 1b of the computer block 1, a conversion table (memory table) for converting the read sewing data into unified data (which will be described later in detail) when processing sewing data by this device is provided according to the sewing machine type. I remember more than one.

The CRT 7 displays an image of sewing data created by the computer block 1 and a menu for selecting execution of the function of the computer block 1. The recording device 9 reads and writes sewing data with respect to external storage means such as a floppy disk.

Next, the format and conversion table used for processing the sewing data of the sewing data creating apparatus of the present embodiment will be explained based on the explanatory views of FIGS. Figure 3
Represents the format of the sewing data which is the conversion source in the present embodiment. Two kinds of flag bits indicating the sewing speed are arranged in the first byte, and the feed direction is shown in the first bit of the second and third bytes. Flag bits are arranged respectively,
After the flag bit indicating the feed direction, areas indicating the feed amount (of the pulse motor) in the X and Y directions are set. Each needle is divided into blocks of a size of 3 bytes (24 bits) and arranged in order from the first stitch to the last stitch.

FIG. 4 shows the format of the unified data which is the conversion destination in the present embodiment, and 4 bytes (32 bits) 1 which has a margin more than the sewing data of FIG. 3 in order to correspond to other formats. It is a block.
That is, flag bits indicating the feed direction are arranged in the 1st and 2nd bits of the 1st byte, and 3 types of flag bits indicating the sewing speed are arranged in the 3rd to 5th bits of the 1st byte. Areas indicating the feed amounts in the X and Y directions are set for each eye.

FIG. 5 is an example of a conversion table of 4 rows and 8 columns used for converting the sewing data stored in the format of FIG. 3 into the format of FIG. A plurality of such conversion tables are stored according to the model of the sewing machine (with a code indicating the model of the sewing machine). The vertical column forming the frame of this conversion table shows the byte offset of the conversion destination, and the horizontal column also shows the bit offset of the conversion destination. On the other hand, the lower column separated by diagonal lines, which is an internal element of the conversion table, shows the byte offset of the conversion source, and the upper column shows the bit offset of the conversion source. The column marked with 0 indicates that there is no corresponding data.

Next, the sewing data input processing of the sewing data creating apparatus of this embodiment will be described with reference to the flowchart of FIG. When inputting sewing data to the computer block 1, first, a floppy disk, which is a recording medium for sewing data, is set in the recording device 9, and the keyboard 3 or the mouse 5 instructs the CPU 1a to execute the input process. At this time, the operator may input what kind of sewing machine the sewing data stored in the floppy disk to be read in, but in the present embodiment, the sewing data stores a model code indicating the type of sewing machine. The case will be described.

Then, as shown in FIG. 6, step 100
When the CPU 1a accepts the input processing, first, at step 110, conversion matching the model code specified from the conversion table stored in the ROM 1b is performed based on the model code of the input sewing data. Select a table.

Next, at step 120, the data block for one stitch of the input sewing data is read in the format of the conversion source. Next, in step 130, the sewing data recorded in the format of the conversion source is read out according to the conversion table, converted into the data of the unified format which is the format of the conversion destination, and recorded.

Here, the details of the conversion process corresponding to this step 130 will be described. For example, the case of converting the speed flag 1 will be described as an example. As shown in FIG. 3, the position of the conversion source data of the speed flag 1 is byte offset =
1, bit offset = 1. Therefore, when the position of the data of the conversion destination (outer frame) corresponding to the byte offset = 1 and the bit offset = 1 of the conversion source (shaded data) is searched in the conversion table of FIG. Byte offset = 1 and bit offset = 3. Therefore, as shown in FIG. 4, the position of the conversion destination data of the speed flag 1 is the byte offset = 1 and the bit offset = 3.

Returning to FIG. 6, in step 140, it is checked whether the converted sewing data is for the last stitch. And
If it is not determined that the sewing data has ended, the process returns to step 120 and the process of converting the next sewing data is performed. On the other hand, if it is determined that the sewing data is for the last stitch, this process is once terminated.

As described above, in the sewing data creating apparatus of this embodiment, the sewing data recorded according to the format of the conversion source is used without using the conversion table indicating the conversion position of the data without interpreting the contents of the data. Since the sewing data of the format of the conversion destination is changed as it is, the conversion processing is easier and the processing time is shorter than the conventional one.

Further, since the conversion table can be selected by using the model code in the conversion process, the conversion table selection process is extremely easy. Needless to say, the present invention is not limited to the above-mentioned embodiments, and can be carried out in various modes without departing from the scope of the present invention.

For example, instead of using the conversion table stored in the ROM 1b, a conversion table read from a floppy disk or the like may be used.

[0031]

As is apparent from the above description, the sewing data creating apparatus according to the first aspect stores the correspondence data of the recording positions of the individual sewing data in the formats before and after the conversion according to the model of the sewing machine. Then, with reference to the stored correspondence data, the sewing data at each recording position in the format before conversion can be recorded as it is at each recording position in the format after conversion. In other words, according to the present invention, when the conversion process for unifying the different sewing data for each model is performed, the data contents are copied as they are according to the correspondence data instead of interpreting and processing the data contents as in the conventional case. So you can do
High-speed conversion processing can be performed and processing time can be reduced.

In the sewing data creating apparatus according to the present invention, one of the plurality of stored correspondence data is selected according to the model code representing the model of the sewing machine. Therefore, the specific correspondence corresponding to the model of the sewing machine is selected. Detection of related data and its use is simplified. In the sewing data creation apparatus according to the third aspect, since the correspondence data is the data indicating the conversion position of the byte and bit offsets of the individual sewing data, the correspondence data itself is not only simplified but also The labor and processing time of data processing using the correspondence data are reduced.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram illustrating a basic configuration of the present invention.

FIG. 2 is a block diagram of a sewing data creation device used in this embodiment.

FIG. 3 is an explanatory diagram showing a structure of sewing data which is conversion source data in the present embodiment.

FIG. 4 is an explanatory diagram showing a structure of unified data which is conversion destination data in the present embodiment.

FIG. 5 is a conversion table showing correspondence between formats before and after conversion handled in the conversion processing of the present embodiment.

FIG. 6 is a flowchart showing a procedure of data input processing of the sewing data creation device of this embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Computer block 1a ... CPU 7 ... CRT 9 ... Recording device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takashi Kondo 15-1 Naedai-cho, Mizuho-ku, Nagoya, Aichi Prefecture Brother Industries, Ltd. (72) Toru Takemura 15-1 Naeji-cho, Mizuho-ku, Nagoya, Aichi Prefecture No. Blazer Industry Co., Ltd. (72) Inventor Yoshihiro Hara No. 15-1, Naeshiro-cho, Mizuho-ku, Nagoya City, Aichi Prefecture

Claims (3)

[Claims] 1. A sewing data creation device for converting pattern data such as characters and pictures to be sewn on a sewing machine into a data string and converting different sewing data depending on the model of the sewing machine into a unified format. Conversion is performed by referring to the correspondence relation storage unit that stores the correspondence relation data of the recording positions of the individual sewing data in the formats before and after the conversion according to the model of the sewing machine, and the correspondence relation data stored in the correspondence relation storage unit. A sewing data creating apparatus comprising: a recording unit that directly records sewing data at individual recording positions in the previous format at individual recording positions in the converted format. 2. One of a plurality of correspondence relation data stored in the correspondence relation storage means is selected according to a machine type code representing a sewing machine type in the sewing data. 1. The sewing data creation device described in 1. 3. The correspondence data according to claim 1, wherein the correspondence data is data indicating conversion positions of byte and bit offsets of individual sewing data.
The described sewing data creation device.