JPH0667422B2 - sewing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is based on various pattern data and includes a work cloth holding means and a large number of stitches formed by moving a needle up and down while relatively moving the needle. The present invention relates to a sewing machine that forms a pattern on a work cloth.

(Prior Art) Generally, a cloth is sent to a finishing treatment process after undergoing various treatment processes such as dyeing, washing, cutting, waterproofing and sewing, and is finished into a sewing product in the finishing treatment process. Since the sorting work in each processing step is performed manually, there is a problem that not only the manufacturing cost rises but also the certainty of the sorting is poor. Therefore, in order to improve the efficiency of the sorting work, it has been proposed to attach an optically readable mark to the cloth, read the mark, and automatically sort.

(Problems to be Solved by the Invention) However, since the conventional mark is directly printed on the cloth or the paper on which the mark is printed is pasted on the cloth, water or water used in the various treatment steps may be used. There is a possibility that some or all of the cloth may be lost or peeled from the cloth due to chemicals or the like, or it may be worn, in which case there is a problem that the optical reading device may misidentify it or make it unreadable.

(Object of the Invention) The present invention has been made in order to solve the above problems, and the object thereof is to prevent disappearance, peeling or deformation from a fabric even under severe environmental conditions. A mark with excellent durability can be formed on the fabric, and moreover,
It is to provide a sewing machine that can form the mark extremely easily.

(Means for Solving Problems) By achieving the above object, in the present invention, the pattern data is constituted by an optically readable bar code, and the pattern data corresponds to the pattern data. Storage means for storing together with the code data, input means for selectively inputting the code data, pattern data corresponding to the code data input by the input means is read out from the storage means, and the pattern data is read based on the pattern data. The bar code forming the pattern data is provided with a plurality of first patterns having a wide width and a plurality of second patterns having a narrow width along a width direction thereof, the bar code having the work cloth holding means and the control means for controlling the operation of the needle. Are arranged in a predetermined order at predetermined intervals on a straight line extending in parallel, and the pattern data forming the first pattern extends in parallel with the arrangement direction of each pattern. Needles for forming a large number of stitches for forming a large number of stitches, and the pattern data forming the second pattern is a needle for forming a large number of stitches extending in a direction intersecting obliquely with the arrangement direction of each pattern. The gist of this is a sewing machine consisting of position information.

(Operation) Therefore, according to the present invention, when the code data is selectively input by the input means, the control means reads out the pattern data corresponding to the code data from the storage means and processes the pattern data based on the pattern data. It controls the operation of the cloth holding means and the needle. Thereby, the optically readable barcode is embodied on the work cloth.

Since the first pattern of the barcode extends parallel to the arrangement direction of each pattern, the length of the stitch ST1 becomes shorter than that in the case where the stitches are arranged in the direction orthogonal to the arrangement direction. A wide pattern can be easily formed without causing the sewing thread to rise and fall apart.

On the other hand, in the second pattern, since the stitches ST2 extend in a direction that intersects the arrangement direction of each pattern at an angle, the stitches may become clogged as in the case of being parallel to the arrangement direction of each pattern, and It is possible to prevent the sewing thread from being easily lifted and separated as in the case of making them orthogonal to each other.
Therefore, a pattern having a narrow width can be formed extremely easily, and at the same time, it can be held in an accurately readable state.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 2, the sewing machine main body 1 is provided with a needle 2, and the needle 2 is moved up and down as the sewing machine motor 3 shown in FIGS. 1 and 2 rotates. An X, Y feeding device 4 is arranged on the rear side of the sewing machine main body 1, and the X, Y feeding device 4 is equipped with a frame body 5 as a work cloth holding means. Then, the needle 2 is moved up and down while the frame 5 is relatively moved in the X direction and the Y direction with respect to the needle 2 by an X-axis and Y-axis pulse motor (not shown) of the X, Y feeding device 4. As a result, a large number of seams are formed on the work cloth, and the seams form a pattern.

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 wide rectangular first pattern P1 having a constant length and a second rectangular pattern P2 having the same length as the first pattern P1 and a narrow width. Both patterns P1 and P2 are arranged on a straight line extending in the width direction thereof at a predetermined interval in a predetermined order. The first and second patterns P1 and P2 are provided with X and Y coordinate position data Pt of the needle 2 corresponding to the four vertices, as shown in FIGS. ,
By combining P2, a pattern data group corresponding to code data such as numbers and alphabets is constructed. For example, the bar code B corresponding to the numerical code “39” shown in FIG. 4 is the pattern group of the first section showing the start code Cs and the second and third patterns corresponding to “3” and “9”, respectively. It is composed of a section pattern group and a fourth section pattern group corresponding to the end code Ce. Further, prior to the actual sewing, the data forming the first pattern P1 is converted into the X and Y coordinate position data of the needle 2 for forming a large number of stitches ST1 extending parallel to the pattern arrangement direction, The pattern P2 is converted into X and Y coordinate position data of the needle 2 for forming a stitch ST2 extending in a direction that intersects the pattern arrangement direction at a predetermined angle θ and obliquely intersects. The stitch density of the X and Y coordinate position data of each pattern P1, P2 is set so as to correspond to 5 crossover threads per 1 mm.

On the other hand, as shown in FIG. 1, a floppy disk drive device 7 is connected to the control device 6 built in the sewing machine main body 1, and the floppy disk drive device 7 is attached to and detached from the floppy disk drive device 7. In the disk 7a, pattern data composed of the bar code B constructed by the patterns P1 and P2 corresponding to the respective codes is stored together with the code data. The control device 6 is provided with a central processing unit (CPU) 8, a read only memory (ROM) 9 and a random access memory (RAM) 10 as control means, and the ROM 9 is a flowchart of FIGS. 3 (a) and 3 (b). A program for controlling the operation of the sewing machine is stored as shown in FIG.

Further, a keyboard 11 and a display device 12 as input means arranged on the front surface of the sewing machine body 1 are connected to the CPU 8. When the code data such as numbers or alphabets is selectively input by the key operation on the keyboard 11, the CPU 8 reads the pattern data corresponding to the code data from the floppy disk 7a and the pattern data area of the RAM 10. 10a and the driving circuit 13
Through the display device 12.

Further, when the CPU 8 inputs a pattern processing signal indicating the enlargement / reduction rate of the bar code B, the vertical and horizontal arrangement directions, etc. by the key operation on the keyboard 11, these are stored in the pattern data area 10a of the RAM 10. Let Further, when the sewing machine start signal is input by the key operation on the keyboard 11, the CPU 8 uses the pattern data in the pattern data area 10a of the RAM 10 to generate each pattern P1, P in the pattern data.
X and Y coordinate position data of the needle 2 for forming 2 are calculated for each needle and stored in the needle position data area 10b of the RAM 10, and based on the stored data, the sewing machine is driven through the respective drive circuits 14 and 15 It controls the operation of the motor 3 and the X, Y feeding device 4.

Now, in the sewing machine configured as described above, when sewing the bar code B corresponding to the number "39" shown in FIG. 4 to the work cloth, for example, first, in the flow chart shown in FIG. In step S1 (hereinafter simply referred to as S1 and the other steps are the same), by operating the keys on the keyboard 11,
Input the code data of "3". Then, in S2, the CPU 8 reads the pattern data corresponding to the code data from the floppy disk 7a, and the pattern data area 1 of the RAM 10 is read.
Temporarily store in 0a. Further, in S3, the CPU 8 causes the display device 12 to display the character corresponding to the code data.

Then, the CPU 8 finishes the input of the code data, and the determination of S4 is
The processes of S1 to S3 are executed until YES. Then C
PU8 determines the presence or absence of the input of the pattern processing signal based on the key operation on the keyboard 11 in S5, and when the pattern processing signal is not input, sets the enlargement / reduction ratio and the arrangement direction to the reference values in S6, and sets it to the above. It is stored in the pattern data area 10a. On the other hand, when the pattern processing signal is input, in response thereto, the enlargement / reduction ratio and the arrangement direction of the barcode B are changed to the input values and stored in the pattern data area 10a (S
7).

Subsequently, after setting a sewing thread having a color different from the color of the work cloth and having excellent processing resistance to the sewing machine main body 1, when the sewing machine start signal is input by the key operation on the keyboard 11 at S8, the CPU 8 at S9 Pattern data area 10
The pattern data is read from a, converted into X and Y coordinate position data for each needle, and stored in the needle position data area 10b of the RAM 10 in S10.

Thereafter, in S11 and S12, the CPU 8 operates the sewing machine motor 3 and the X and Y feed device 4 based on the X and Y coordinate position data of the needle 2, thereby moving the needle 2 and the frame 5 relative to each other. Move up and down. Then, the bar code B is formed on the work cloth by 5 crossover yarns per 1 mm.

As described above, in this embodiment, since the bar code B is formed by the thread sewn on the work cloth, there is a possibility that the bar code B may be peeled off or disappear even under harsh environmental conditions using water, chemicals or the like. It can be prevented in advance and can be surely read by the optical reading device. In addition, since the second pattern P2 having a narrow width is formed by the seams obliquely intersecting the width direction, there is no possibility that the seams are clogged.

The present invention is not limited to the above embodiment,
For example, a hard disk or compact disk capable of writing and reading data may be used as the storage means, or an IC card equipped with a RAM may be used.

(Effect of the invention) As described in detail above, the present invention can prevent disappearance, peeling or deformation from the fabric even under severe environmental conditions, and can form a mark having excellent durability on the fabric,
Moreover, there is an excellent effect that the mark can be formed extremely easily.

[Brief description of drawings]

FIG. 1 is a block circuit diagram of a sewing machine embodying the present invention, FIG. 2 is an external view of the sewing machine, FIGS. 3 (a) and 3 (b) are flow charts, FIG. 4 is a bar code explanatory diagram, and FIG. (A) and (b) are explanatory views of the sewing pattern of the barcode. 2 ... Needle, 5 ... Frame body as work cloth holding means, 8 ...
CPU as control means, 7a ... Floppy disk as storage means, 11 ... Keyboard as input means, B
…… Bar code, P1 …… First pattern, P2 …… Second pattern.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Fumio Nakanishi 9-35 Hotta-dori, Mizuho-ku, Nagoya-shi, Aichi Brother Industries, Ltd. (72) Inventor Tomoe Goto 9-35 Hotta-dori, Mizuho-ku, Nagoya, Aichi Brother Industries, Ltd. (72) Inventor Masaaki Shimada 4-1-1 Kiyomidai, Kawachinagano City, Osaka Prefecture (72) Inventor Minoru Yamano 1-4-7 Yamatedai, Ibaraki City, Osaka Prefecture (56) References 58-99989 (JP, A)

Claims (1)

[Claims] 1. A work cloth having a large number of stitches formed by moving the needle (2) up and down while relatively moving the work cloth holding means (5) and the needle (2) based on various pattern data. In a sewing machine for forming a pattern, the pattern data is composed of an optically readable bar code (B), and a storage means (7a) for storing the pattern data together with code data corresponding to the pattern data, Input means (11) for selectively inputting code data, and pattern data corresponding to the code data input by the input means (11) is read from the storage means (7a),
And a control means (8) for controlling the operation of the work cloth holding means (5) and the needle (2) based on the pattern data, wherein the bar code (B) constituting the pattern data has a plurality of wide widths. The first pattern (P1) and a plurality of narrow second patterns (P2) are arranged in a predetermined order at a predetermined interval on a straight line extending along the width direction of the first pattern (P1). The pattern data forming (P1) includes needle position information for forming a large number of stitches extending in parallel with the arrangement direction of each pattern (P1, P2), and the pattern forming the second pattern (P2). Data is for each pattern (P1, P
A sewing machine including needle position information for forming a large number of stitches extending in a direction that intersects diagonally with the arrangement direction of 2).