JPH05337263A - Decorative character embroidering method by sewing machine to which external input can be executed - Google Patents

Abstract

PURPOSE:To automatically embroider a decorative character by storing character data of the form of a character read by a reader in a storage member and converting it to embroidery control data, and executing automatically shadow sewing or volume sewing by a combination of colors of threads allowed to pass through twin needles by driving an embroidery frame driving mechanism. CONSTITUTION:A character is read by a reader 1 and character data is stored in a storage member 7, and thereafter, the storage member 7 is installed in a sewing machine 12 and the sewing machine 12 is switched to an embroiderable state, and selecting the twin needles, shadow sewing or volume sewing is selected by a display switch displayed in a display part 20. Thereafter, when the sewing machine 12 is operated, the character data stored in the storage member 7 is converted to control data for the selected shadow sewing or volume sewing, and by this control data, an X direction motor and a Y direction motor of an embroidery frame driving mechanism are driven, and embroidery of the character is executed by moving flatly cloth through an embroidery frame 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for embroidering decorative characters using a sewing machine capable of external input.

[0002]

2. Description of the Related Art In a conventional sewing machine having an external input device and a memory member capable of external input, it is possible to sew characters in a desired font, but the sewed characters are finely decorated. It lacked in grace.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a desired character is input to a storage unit as character data by an external input device,
The purpose of the present invention is to automatically convert character data into drive control data for a cloth support frame drive mechanism for embroidery, and automatically perform decorative sewing of characters by the control data to sew a character that looks good. ..

[0004]

SUMMARY OF THE INVENTION According to the present invention, character data of a desired character input to an embroidery sewing machine by an external input device is controlled to control the movement of each component in the XY direction in a cloth support frame drive mechanism. Decorative characters that look good when converted to data and used for shadow stitching with two needles through different color threads, volume stitching with two needles through the same color thread, and effective misalignment stitching with any color thread It is designed so that embroidery can be obtained.

[0005]

According to the present invention, the character data of a font read by the reading device is stored in a storage member, the character data stored in the storage member is converted into embroidery control data, and the sewing machine is provided with the embroidery control data. By driving the hoop driving mechanism, the hoop is driven automatically and by the combination of the two needles selected from the various intervals attached to the sewing machine and the colors of the threads passed through the two needles. Characteristic stitching is performed by performing shadow stitching or volume stitching, and making a good-looking character stitch.

[0006]

EXAMPLE One example according to the present invention will be described below. A reading device 1 for reading a desired shape including numbers and storing the data in the shape in a storage unit is shown in FIG.
As shown in FIG. 2, it comprises a main body 2 and a scanner 3, and the scanner is electrically connected to the main body 2 by a cord 4.

The main body 2 is provided with a sheet placing section 5 on which a sheet on which letters and the like are displayed can be placed on a lower flat portion, and a control section 6 is provided adjacent to the sheet placing section. The control section is provided with a mounting section 8 on the side surface to which the storage member 7 can be attached and detached, and a display section 1 including a power supply disconnecting switch 9, a function selecting switch 10 and a liquid crystal on the upper surface.
1 etc. are provided.

In the reading device 1, the storage member 7 is mounted on the mounting portion 8, the power supply disconnecting switch 8 is turned on, and the sheet mounting portion 5 is turned on.
The character data is read on the storage member 7 by moving it over the sheet of the desired character placed on the scanner 3 and reading it by the scanner 3.

The sewing machine 12 is capable of automatic embroidery by automatically driving an embroidery frame 17, and comprises an arm machine frame 13, a bed machine frame 14 and an embroidery drive mechanism frame 15 having a built-in embroidery frame drive mechanism. A mounting portion 16 of the data storage member 7 is provided in a part of the sewing machine 12.

A mounting portion of the embroidery drive mechanism 25 built in from a part of the embroidery drive mechanism frame 15 is exposed to the outside, and an embroidery frame 17 is attached to the attachment portion on the upper surface of the bed machine frame 14. It is fixed so that it can make a plane movement and is detachable.

On the front surface of the arm machine frame 13, there are provided a sewing type selection switch 18, a function selection switch 19 and a display section 20 made of a liquid crystal.

A drive shaft (not shown) which is interlocked with the rotation of the motor is supported on the arm machine frame 13, and a needle bar 21 which is reciprocally moved in the vertical direction in conjunction with the drive shaft is supported.
A needle 22 is attached to the lower end of the needle bar.

A thread loop catching portion (not shown) is provided in the bed machine frame 14 at a position corresponding to the fall of the needle 22, and the thread loop catching portion cooperates with the needle to form a stitch.

A central processing unit C is provided inside the arm frame 13.
A PU 23 is provided, and the CPU is the character reading device 1.
And read data storage means 7 and sewing type selection means 18
Also, the pattern control data storage means 2 is connected to the function selection means 19 including the double needle selection means and the display means 20.
4, the read control data storage means 24, the shadow sewing control program storage means 24, the volume-up sewing control program storage means 24, the shift sewing control program storage means 24, etc. are connected to the central processing unit 23, respectively. (See Figure 3)

According to the present invention, a memory member (ROM, RAM) 7 is used in the reading device 1 by a method utilizing the above-mentioned structure.
Store the desired letter, for example, the letter A, in
When the memory member is attached to the sewing machine 12, the sewing machine becomes ready to embroider, and whether the stored character data is sewn with one needle or even two needles with a needle spacing of 2 mm is used. A selection unit is displayed in the display unit 20 as to whether or not a 4 mm one is used (FIG. 4).

When 2 mm of the two needles is selected, the display unit 20
Since shadow sewing and volume sewing are displayed on, you can select either one. (See Figure 5)

Whichever is selected, the display section 20 displays a display that allows manual adjustment of the amplitude and the feed. If no amplitude or feed adjustment is required, the standard is selected, and if manual adjustment is required, either the amplitude or feed + -key is pressed to select the desired amount.

In shadow sewing, the left needle is used to sew a font, and the right needle is used to sew a shadow of a font. Therefore, thread a bright color thread through the left needle.
Do a thread of dark color corresponding to the shadow on the right needle. Misalignment sewing is performed in the same manner as shadow sewing. For volume sewing, thread the same color through the left and right needles.

The shadow stitching (S) and the shift stitching (Z) are shown in FIG.
As shown in Fig. 8, it is inconvenient for the thread on the right side to be mixed with the thread on the right side, so that the thread for the left needle (solid line) to sew the character is the thread for the right needle ( (Dotted line) so that the shadow thread does not cover the font thread so that the thread is controlled to feed (○ mark indicates the left stitch and Δ mark indicates the right stitch).

For shadow stitching, needles having a relatively small gap between needles of 1.6 mm and 2.0 mm are used, and for shift stitching, needles having a relatively large needle gap of 3.0 mm and 4.0 mm are used. Is obtained by using.

Volume sewing (V) is a sewing method in which threads of the same color are used for the left and right needles and the center (C) is overlapped with the left and right threads to give a bulky feeling. It shows the overlapping width of the left and right threads, and can be adjusted to an appropriate amount.

FIG. 11 shows a program for performing shadow sewing and volume sewing with two needles.

Since the present invention has the above-described structure and operation, the desired character is read by the reading device 1 and the character data is stored in the storage member 7.

Next, by mounting the memory member on the sewing machine 12, the sewing machine is switched to the embroidery-ready state and by selecting two needles, the shadow switch and the volume knob are displayed by the display switch displayed in the display section 20. Select the sewing.

When changing the two needles and selecting shadow sewing, use threads of different colors, and when selecting volume sewing, use threads of the same color. Even in the case of shadow stitching, if misalignment stitching is desired, the one with a large needle gap between the two needles is fixed.

When the sewing machine is operated after the above preparations, the character data stored in the storage member 7 is converted into the control data for the selected shadow sewing or volume sewing, and the hoop driving mechanism is driven by the control data. The X-direction motor 26 and the Y-direction motor 27 are driven to move the cloth in a plane through the embroidery frame 17 to embroider the letter A.

[0027]

As described above, according to the present invention, by mounting the two needles having various intervals, and in conjunction with the selection of the color of the thread to be passed through the two needles, the sewing machine is driven and the embroidery frame is driven. In addition, it is possible to perform volume sewing, and it is possible to obtain a character embroidery that does not look good in the past, and it is very effective in practical use as it makes life rich.

[Brief description of drawings]

1 is a perspective view of a reading device according to the present invention, FIG. 2 is a perspective view of a sewing machine according to the present invention, and FIG. 3 is a block diagram of a main portion of the sewing machine according to the present invention. FIG. 4 is a display portion of a sewing machine according to the present invention, FIG.
6 is a display section of the sewing machine according to the present invention, FIG. 6 is a display section of the sewing machine according to the present invention, FIG. 7 is a shadow stitch and a shift stitch sewn according to the present invention, and FIG. 8 is a needle drop of two needles of the shadow stitch according to the present invention. 9 is a plan view showing points, FIG. 9 is a volume stitch sewn according to the present invention, FIG. 10 is a plan view showing needle drop points of the volume stitch according to the present invention, and FIG. 11 is a soft program according to the present invention.

Front page continuation (72) Inventor Takuya Ogawa 3-1, 1-1 Kyobashi, Chuo-ku, Tokyo Janome Eye Machine Industry Co., Ltd.

Claims (1)

[Claims] Character data of a font read by a reading device is stored in a storage member, the character data stored in the storage member is converted into control data for embroidery, and a selection operation of control means of a sewing machine having an embroidery frame drive mechanism and various intervals Selectively combining two different needles and driving the hoop according to the hoop control data, and automatically forming a decorative character for shadow stitching with threads of different colors or volume stitching with threads of the same color A method for embroidering decorative characters using a sewing machine that allows external input.