JPH01126995A - Sewing machine - Google Patents

Abstract

PURPOSE: To form a mark, which is prevented from being deleted or released from a fabric, improved in durability on the fabric even under severe environmental conditions by reading pattern data corresponding to code data out of a storage means and controlling the action of a needle. CONSTITUTION: A floppy disk(FD) driving device 7 is connected to a controller 6 built in the main body 1 of sewing machine and on FD 7a to be loaded/ unloaded to that device 7, the pattern data composed of a bar code B composed of respective patterns P1 and P2 corresponding to respective codes are stored together with the code data. A CPU 8 reads the pattern data corresponding to these code data out of the FD 7a and temporarily stores them in a pattern data area 10a of a RAM 10. Afterwards, based on X/Y coordinate position data of a needle 2, the CPU 8 operates a sewing machine motor 3 and an X/Y feeder 4 and forms the bar code B on the working fabric. Thus, releasing or the like can be prevented. Further, there is no danger of stitch clogging.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is based on various pattern data, and uses a large number of stitches formed by moving a work cloth holding means and a needle up and down while moving the needle relative to each other. This invention relates to a sewing machine that forms patterns on processed cloth.

(Prior Art) In general, fabrics undergo various processing steps such as dyeing, washing, cutting, waterproofing, and sewing before being sent to a finishing step, where they are finished into sewn products. Since the classification in each processing step was performed manually, there was a problem that not only did the manufacturing cost rise, but also the reliability of the classification was poor. Therefore, in order to improve the efficiency of the sorting process, it was proposed to attach optically readable marks to the fabric, read the marks, and automatically sort the fabric.

(Problems to be Solved by the Invention) However, since conventional marks are printed directly on fabric or paper with pre-printed marks is attached to fabric, the water and water used in the various processing steps are There is a risk that some or all of it may disappear or peel off from the fabric or be worn away by chemicals or the like, and in that case, there is a problem that an optical reading device may misidentify it or it may become unreadable.

(Object of the invention) This invention was made to solve the above problems, and its purpose is to prevent fabric from disappearing or peeling off even under severe environmental conditions, and to improve durability. To provide a sewing machine that can form excellent marks on fabric.

(Means for solving the problem) In order to achieve the above object, the present invention configures pattern data in association with an optically readable mark such as a barcode, and storage means for storing pattern data together with code data corresponding to the pattern data; input means for selectively inputting the code data; reading pattern data corresponding to the code data inputted by the input means from the storage means; A control means is provided for controlling the operation of the work cloth holding means and the needle based on the data.

(Operation) Therefore, according to the present invention, when code data is selectively inputted by the input means, the control means reads pattern data corresponding to the code data from the storage means, and processes the pattern data based on the pattern data. Controls the operation of the fabric holding means and needles. As a result, an optically readable mark such as a bar code is formed on the work cloth.

(Example) Hereinafter, an example embodying the present invention will be described in detail with reference to the drawings.

As shown in FIG. 2, the sewing machine main body 1 is equipped with needles 2, the needles 2 of which are moved up and down as the sewing machine motor 3 shown in FIGS. 1 and 2 rotates. An X, Y feeding device 14 is disposed on the rear side of the sewing machine main body 1, and the X, Y feeding device 4 is equipped with a frame 5 as work cloth holding means. and,
This frame body 5 is X.

The needle 2 is moved up and down while being moved relative to the needle 2 in the X and Y directions by the X-axis and Y-axis pulse motors (paths shown) of the Y feed device 4, thereby causing a large number of particles to be applied to the work cloth. A stitch is formed, and a pattern is formed by the stitch.

In this embodiment, the pattern is an optically readable mark such as a bar code B, as shown in FIG. That is, the barcode B includes a first pattern P1 having a wide rectangular shape having a constant length, and a second pattern P2 having the same length as the first pattern P1 and a narrow rectangular shape. Both patterns PI and P2 are arranged in a predetermined order at a predetermined interval on a straight line extending along the width direction thereof. The first and second patterns P1 and P2 are the X's of the needle 2 corresponding to the four vertices, as shown in FIGS. 5(a) and 5(b).

A pattern data group corresponding to code data such as numbers and alphabets is constructed by combining each pattern P1 and P2. for example,
The barcode B corresponding to the numerical code "39" shown in FIG. 4 is the pattern group of the first section indicating the start code Cs and "3".

The second number corresponding to "9" respectively. It consists of a pattern group in the third section and a pattern group in the fourth section corresponding to the end code Ce. Furthermore, prior to the actual sewing,
The data constituting the pattern P1 is converted into a total of two X and Y coordinate position data for forming a large number of stitches STI extending parallel to the pattern arrangement direction, and the second pattern P2 is formed at a predetermined angle θ with respect to the pattern arrangement direction. The data is converted into a total of two X and Y coordinate position data for forming a stitch ST2 extending in directions that intersect with each other. The stitch density of the X and Y coordinate position data of each pattern P1 and P2 is set to correspond to five crossing threads per crane.

On the other hand, as shown in FIG. 1, a floppy disk drive bag W, 7 is connected to a control device 6 built into the sewing machine main body 1, and a floppy disk drive bag W, 7 is connected to the floppy disk drive device 7 as a storage means. On the floppy disk 7a, pattern data consisting of a barcode B constructed from the patterns P1 and P2 corresponding to each of the codes is stored together with the code data. The control value W6 is determined by a central processing unit (CPU) 8. Read only memory (ROM) 9 and random access memory (R
AM) 10, and the ROM 9 contains the information shown in FIGS. 3(a) and (b).
) A program for controlling the operation of the sewing machine as shown in the flowchart is stored.

The CPU 8 also includes a keyboard 11 as an input means and a display device 1 disposed on the front surface of the sewing machine body 1.
2 are connected. When code data such as numbers or alphabets is selectively input by key operation on the keyboard 11, the CPU reads pattern data corresponding to the code data from the floppy disk 7a and stores it in the pattern data area of RAMl0. 10a and the display bag Wt, 12 via the drive circuit 13.
to be displayed.

Further, the CPU 8 controls the scaling ratio and the vertical direction of the barcode B by operating the keys on the keyboard 11.

When a pattern processing signal indicating the horizontal arrangement direction etc. is input,
0, the CPU 8 stores them in the pattern data area 10a of the RAM 10, and when a sewing machine start signal is input by key operation on the keyboard 11, the CPU 8
Based on the pattern data in the pattern data area 10a' of AMl0, each pattern P1, P2 in the pattern data is
The X, Y coordinate position data of the needle 2 for forming the needle 2 is calculated for each stitch and stored in the needle position data area 10b of the RAM 10, and based on the stored data, each drive circuit 14.
15, the operation of the sewing machine motor 3 and the X, Y feed device 4 is controlled.

Now, in the sewing machine configured as described above, when sewing barcode B corresponding to the number "39" shown in FIG. 4 onto a workpiece cloth, first, the flowchart shown in FIG. 3(a) is sewn. In step S1 (hereinafter simply referred to as S1; the same applies to other steps), code data of "3" is input by operating keys on the keyboard 11. Then, C
In S2, the PU 8 reads the pattern data corresponding to the code data from the floppy disk 7a and stores it in the RAM.
It is temporarily stored in the pattern data area 10a of l0.

Further, in S3, the CPU 8 causes the display device 12 to display characters corresponding to the code data.

Then, the CPU 8 executes the processes 81 to S3 described above until the input of the code data is completed and the determination in S4 becomes YES. Next, in S5, the CPU 8 determines whether or not a pattern processing signal has been input based on the key operations on the keyboard 11, and when no pattern processing signal has been input, in S6, the CPU 8 sets the enlargement/reduction ratio and the arrangement direction to reference values, It is stored in the pattern data area 10a. On the other hand, when a pattern processing signal is input, in response, the scaling ratio and arrangement direction of barcode B are changed to the input values and stored in the pattern data area 10a (S7).

Subsequently, after setting sewing thread with excellent processing resistance in a color different from the color of the work cloth to the sewing machine body 1, a sewing machine start signal is inputted by key operation on the keyboard 1 in S8, and the CPU 8 executes the above-mentioned process in S9. The pattern data is read out from the pattern data area 10a, converted to x and y coordinate position data for each stitch, and R
It is stored in the needle position data area tab of AM10.

After that, the CPU 8 performs a total of 2 Xs in Sll and S12.
, based on the Y coordinate position data, the sewing machine motor 3 and x,
The y-feeding device 4 is operated, thereby moving the needle 2 up and down while relatively moving the needle 2 and the frame 5. Then l■
A barcode B is formed on the processed cloth by five crossing yarns.

As mentioned above, in this embodiment, the barcode B is formed from threads sewn to the processed cloth, so there is no risk of it peeling off or disappearing even under harsh environmental conditions where water or chemicals are used. This can be prevented and reliably read by an optical reading device. In addition, since the narrow second pattern P2 is formed by stitches that are diagonal to the width direction, there is no possibility that the stitches will become clogged.

Note that this invention is not limited to the above embodiments,
It is also possible to embody it in the following manner.

(a) For example, the mark may be composed of the Carla code K shown in FIGS. 6 and 7.

The structural unit of the Carla code is a rectangular frame F divided into four equal parts, and the rectangular frame F includes, for example, x and y coordinate position data t of the needle 2 corresponding to each vertex of the four sections. Also, 4
A pattern data group corresponding to code data such as numbers and alphabets is constructed by a plurality of rectangular frames F obtained by filling in arbitrary sections of one section FaxFd. Then, the configuration data of the rectangular frame F having the filled-in section FaxFd is created by forming a large number of stitches ST1 extending parallel to the rectangular frame arrangement direction, prior to actual sewing, as in the first pattern P1 of the embodiment described above. It is converted into X and Y coordinate position data of the needle 2 for forming. Therefore, in this case as well, the X, Y
Based on the coordinate position data, it is possible to reliably form the Carla cord K on the work cloth without fear of peeling or disappearing even under harsh environmental conditions.

(b) writing and reading data as a storage means;
sipping using a hard disk or compact disc that can be stored, or using an IC card with RAM.

(Effects of the Invention) As detailed above, this invention provides a mark that does not easily disappear or peel off from fabric even under harsh environmental conditions, has excellent durability, and can be reliably read optically. It has the excellent effect of being able to reliably form the .

[Brief explanation of the drawing]

Figure 1 is a block circuit diagram of a sewing machine embodying this invention, Figure 2 is an external view of the sewing machine, Figures 3 (a) and (b) are flowcharts, Figure 4 is an explanatory diagram of barcodes, and Figure Figures (a) and (b) are explanatory diagrams of barcode sewing patterns. FIG. 6 is an explanatory diagram of a Carla cord in another example, and FIG. 7 is an explanatory diagram of a sewing pattern of the Karla cord. 2... Needle, 5... Frame as work cloth holding means, 8
... CPU as control means, 7a... Floppy disk as storage means, 11... Keyboard as human power means, B... barcode, Pl... first pattern, P2... th 2 patterns, K...Karura code. (a) Figure 3 (b) pt pt Figure 6

Claims (1)

[Claims] 1. Work cloth holding means (5) based on various pattern data.
In a sewing machine that forms a pattern on a workpiece cloth by a large number of stitches formed by moving the needle (2) up and down while moving the needle (2) relative to each other, a bar code that allows the pattern data to be read optically is provided. (B
) storage means (7a) for storing the pattern data together with code data corresponding to the pattern data; and input means (11) for selectively inputting the code data; The pattern data corresponding to the code data inputted by the input means (11) is read out from the storage means (7a), and the work cloth holding means (5) is read out based on the pattern data.
) and a control means (8) for controlling the operation of the needle (2). 2. The sewing machine according to claim 1, wherein the mark is a barcode (B). 3 The barcode (B) includes a plurality of wide first patterns (P1) and a plurality of narrow second patterns (P2) arranged at predetermined intervals in a predetermined order on a straight line extending along the width direction. 3. The sewing machine according to claim 2, wherein the sewing machine is arranged at intervals of 1 to 10 cm. 4. According to claim 3, the pattern data constituting the first pattern (P1) comprises needle position information for forming a large number of stitches extending parallel to the arrangement direction of each pattern (P1, P2). Sewing machine mentioned. 5. The pattern data constituting the second pattern (P2) comprises needle position information for forming a large number of stitches extending in a direction intersecting the arrangement direction of each pattern (P1, P2). The sewing machine described in 6. The sewing machine according to claim 1, wherein the mark is made of Karura cord (K).