JPH05269275A - Embroidery pattern shape display device - Google Patents

Abstract

PURPOSE:To improve the usability of a sewing machine by lighting the pattern shape of the embroidery pattern sewing by an embroidery sewing machine, previously on an embroidery cloth. CONSTITUTION:As for a sewing machine A equipped with embroidery function, a pattern selecting means 1 which can be externally operated in order to select a desired sewing pattern from among a plurality of sewing patterns is installed, and an on-cloth display device DP which performs plane display for the pattern shape 1 of the embrodery pattern sewing by irradiating the bed surface D of the sewing machine in the lower part from a display light source 16 installed inside a sewing machine arm part B is installed, and a calculation data memory means for memorizing the arbitrary data for the point and line displays and a seam forming means for carrying out the embroidery pattern sewing on the basis of its data are installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery pattern shape display device capable of displaying an embroidery pattern sewing pattern of an embroidery sewing machine on a cloth.

[0002]

2. Description of the Related Art Conventionally, a selection device for selecting a desired sewing pattern on a front panel of a sewing machine and a display device for displaying a shape of the sewing pattern are provided, and the pattern can be selected while directly checking the selected pattern. There is generally known a sewing machine capable of performing a sewing operation while confirming a message of information regarding a sewing operation on a display device.

On the other hand, the position on the work cloth where the embroidery pattern is sewn depends on actual experience and skill. In order to know the starting position of the embroidery pattern, the needle is actually lowered and the position is confirmed. It is the current situation.

[0004]

From the above,
When sewing a desired embroidery pattern in an embroidery frame, it is desired to be able to easily confirm in advance the shape of the pattern. In particular, when the embroidery pattern sewing operation is continuously performed, it is extremely troublesome to perform the positioning each time, and there is a drawback that the embroidery work efficiency is reduced.

[0005]

Therefore, as a result of intensive studies, the inventor of the present invention has found that, in a sewing machine with an embroidery function, a desired sewing pattern is selected from a plurality of sewing patterns. A pattern selection means that can be operated externally, and a cloth display device that irradiates the bed surface of the sewing machine below the display light source provided inside the sewing machine arm to display the embroidery pattern shape on the surface. In the sewing machine with an embroidery function, the embroidery pattern shape display device is provided with the arithmetic data storage means for storing arbitrary data for surface display and the stitch forming means for sewing the embroidery pattern based on the data. Before sewing the embroidery pattern, not only the position of the embroidery pattern sewing but also the pattern shape itself can be confirmed. Are those that form.

[0006]

Embodiments of the present invention will be described below with reference to FIGS. The sewing machine with embroidery function A shown in Fig. 4 has
Includes embroidery sewing machines capable of embroidering only and compound embroidery sewing machines capable of normal and embroidery sewing.

FIG. 1 is a block diagram showing the structure of a sewing machine A with an embroidery function. The pattern selecting means 1 selects a plurality of predetermined patterns and can be operated on the front surface of the sewing machine A with an embroidery function. It is arranged. The configuration is such that the pattern selected on the touch panel 1a provided with a touch switch can be displayed on the display device 2.

The pattern stitching data storage means 3 stores a plurality of control data for forming stitches of the pattern, and is a general ROM or an external storage means. The pattern display data storage means 4 stores display data for displaying a plurality of patterns corresponding to the stitch formation data on the display device 2, and the ROM or an external storage means stores the stitch formation data together with the above-mentioned stitch formation data. It is preferably stored.

The system program storage means 5 stores a system program for controlling various control motors, which will be described later, by using the pattern data in association with the display and selection for the pattern selection and the sewing machine driving. The selected pattern storage means 6 stores information on the pattern selected by the pattern selection means 1, and is composed of a RAM.

The upper shaft phase detecting sensor 7 is fixed to the upper shaft of the sewing machine, and is constituted by a disc having a slit and a position corresponding to the slit of the disc.

The drive motor 8 for driving the sewing machine is connected to the central processing unit 10 via a drive motor control circuit 9. Reference numerals 11 and 12 denote an X-direction control stepping motor and a Y-direction control stepping motor for moving the needle and the work cloth relative to each other in the X and Y directions, and are connected to the central processing unit 10 via a stepping motor control circuit 13. ing. These motor drive mechanisms are provided in the sewing machine A having an embroidery function, which is an embroidery sewing machine capable of embroidering only. A motor drive mechanism including the X-direction control stepping motor 11, the switching drive motor instead of the Y-direction control stepping motor 12, and the feed adjusting motor is provided in the sewing machine A having an embroidery function, which is the compound embroidery sewing machine. .

Based on the drive motor control circuit 9 and the stepping motor control circuit 13, what is constituted by a needle that moves up and down and a needle thread catching means that cooperates with this is called "stitch forming means".

In this embodiment, the X, Y position detecting means 14 is a stepping motor which is rotated to move from the reference position, which is an initial position set at a predetermined movement distance from the origin of the machine. The position is specified by counting the rotation amount. The "origin of the machine" referred to in this specification means the initial position where the hoop E is held stationary even when the X-direction control stepping motor 11 for driving the hoop E rotates by a certain rotation angle. ..

The cloth display device DP is, as shown in FIG.
A light transmission type display device 15 such as a liquid crystal display body arranged to display a pattern formed on the cloth, and a display light source 16 movably arranged behind the light transmission type display device 15 are driven. Display light source circuit 17 and the light transmission type display device 1
5 is composed of a condenser 18 such as a lens arranged on the front side of 5, and an adjusting circuit 19 thereof. The light collecting device 18
Include the condenser lens 18a and the imaging lens 18b.
Is provided. Further, the planar microlens 18c may be used as needed.

The cloth display device DP is housed inside the sewing machine arm portion B having an embroidery function, and the display light source 16 of the sewing machine displays the embroidery pattern on the bed surface D through the liquid crystal display, that is, The embroidery pattern sewing itself is pre-illuminated. The cloth display device DP is not provided in the jaw C at the end of the sewing machine arm B.

Display data can be displayed on the cloth in the hoop E corresponding to the position designated by the X direction manual operation key 20 and the Y direction manual operation key 21. The X-direction manual operation key 20 and the Y-direction manual operation key 21 are collectively referred to as "change position input means PI".

Cloth display key 22 for instructing display on the cloth
When is operated, the hoop E displays a display corresponding to the display light source 16 of the cloth display device DP provided on the sewing machine arm B which is moved by the distance L from the sewing start position below the set needle. Move to position. The start position display from the cloth display device DP is set to a position corresponding to the position of the needle in the sewing position. That is, even if the starting position is not directly below the needle, the starting position of the embroidery frame E and the position below the needle are closely arranged even on the embroidery frame E.

In addition, as shown in FIG. 6, when the embroidery pattern is of a normal size or when the embroidery pattern is enlarged as shown in FIG. It is visible on the embroidered fabric.

The display color setting device CR comprises a cloth color or brightness detection means 23, a display color determination system program storage means 24, and a display color data storage means 25. The cloth color or brightness detection means 23 is a detection means for detecting the color or brightness of the cloth, and is composed of an image pickup device such as a CCD and a color discrimination means. The system program storage means 24 for determining the display color stores a program for designating the opposite color of the cloth color or the color detected by the brightness detection means 23, and the information about the opposite color is the display color. The display light source 16 outputs the read data from the display color data storage means 25 that stores a large amount of data.

The cloth color or brightness detecting means 23 may be a monochrome detecting means. In this case, two colors having different hues are designated from the detected lightness and the reference lightness (lightness from white to black), and sequentially, It is also possible to display on the light transmission type display device 15 and operate a desired one by operating the color designation key 1b arranged in the pattern selection means 1. Also, in some cases,
It may be provided as a predetermined display color capable of irradiating colors even with a brightness close to black. The display color setting device CR may not be provided. In addition, a desired color may be projected by the display color selection means 26 provided separately.

In particular, depending on the color or brightness of the cloth,
A display color may be selected by an appropriate display color selection means 26, and an extremely easy-to-see color may be projected. Further, the light source color of the display light source 16 may be detected by projecting a color corresponding to the color of the cloth for sewing the embroidery pattern. Even in this case, it is possible to project a color that is extremely easy to see.
Even in this case, it is possible to project a color that is extremely easy to see.

The figure change selection key 27 is a key for selecting appropriate enlargement / reduction (similar shape), even allocation, horizontal enlargement / reduction, and vertical enlargement / reduction. When the figure change selection key 27 is selected, the plurality of figure forms are displayed on the display device 2, and the magnification value 1c is appropriately selected and displayed on the display device 2. In this way, the calculated magnification is used as the change data to be the display data and the reference value of the sewing data, and the calculated display data storage means 28 and the calculated sewing data storage means 29 are used.
Memorized in. The calculated sewing data storage means 29 stores the calculated sewing data based on the change and deformation input of the data stored in the pattern sewing data storage means 3. The calculation display data storage means 28 and the calculation sewing data storage means 29 are collectively referred to as "calculation data storage means".
Say. Reference numeral 30 is a confirmation key, 31 is a clear key for returning the adjustment to the initial state, 32 is a start key, and 33 is a speed adjustment key.

Next, the operation of the present invention will be described with reference to the flow chart shown in FIG. When the pattern is selected in S1,
In S2 and S3, the display data is read from the pattern display data storage means 4 and displayed on the display device 2, and the sewing data of the selected pattern is stored in the selected pattern storage means 6.

Then, when the cloth display key 22 is operated,
The embroidery frame E holding the cloth is moved to the initial setting position of the position corresponding to the cloth display device DP arranged in the middle of the sewing machine arm B, and the cloth color or brightness detecting means 23
Activates to read the fabric color and determine the opposite color data. In S8 to S9, the read display color data,
Display light source 1 by reading the cloth data in the pattern display data
6 is lit to display the embroidery pattern and sewing pattern shape on the cloth.

Here, when changing the position of the pattern shape, in S10, the X-direction manual operation key 20, Y
Each direction manual operation key 21 is operated to output an operation signal. The X-direction control stepping motor 11 and the Y-direction control stepping motor 12 are driven in response to the signal,
When the fabric frame is moved to the position of the displayed sewing pattern shape and the confirm key 30 is operated at the desired position, S11
Then, it is determined that the instruction has been completed, and the movement amount from the initial setting position is stored as the deformation data in the calculation display data storage means 28 and the calculation sewing data storage means 29 as reference values of the display data and the sewing data. Here, when the position of the pattern shape is not changed, the initial position is set by operating the confirm key 30.

From this state, the X-direction control stepping motor 11 and the Y-direction control stepping motor 12 are again driven by the amount of movement and returned to the starting position, whereby the changed and input pattern shape is displayed on the cloth.

After the change is thus completed, in S12,
When the start key 32 is operated, the embroidery frame E is driven from the display position on the cloth to the initial setting position of the pricking position corresponding to the needle, and if the position of the pattern shape is changed, it is sewn to that position. Transferring only the hoop E without forming eyes,
A changed embroidery stitch is formed according to the sewing data read from the position of the pattern shape in synchronization with the upper axis phase detection sensor 7 (see S13).

Further, as shown in FIG. 3, in the case of changing the figure, in S101, the figure change selection key 27 is appropriately selected, and the appropriate enlargement / reduction (similar shape) of S102,
Equal allocation in S103, horizontal enlargement / reduction in S104, S10
Select the vertical enlargement / reduction mode of 5 and the magnification value 1c here.
Is selected and displayed on the display device 2, and the enter key 30
Press to display the pattern shape on the cloth, and operate the start key 32 in the same manner as described above to form an embroidery stitch based on the registered pattern change data.

[0029]

According to the present invention, in the sewing machine A with the embroidery function, the pattern selecting means 1 which can be operated externally for selecting a desired sewing pattern from a plurality of sewing patterns and the sewing machine arm B are provided inside. A cloth display device DP that illuminates the bed surface D of the sewing machine below the display light source 16 to display the embroidery pattern shape on a surface, an operation data storage unit that stores arbitrary data of the surface display, and the same. The embroidery pattern shape display device is provided with the stitch forming means for sewing the embroidery pattern based on the data.
It is not necessary to drop the needle, and the pattern shape can be grasped in advance before sewing the embroidery pattern. That is, while selecting the appropriate embroidery pattern,
The embroidery frame E can be displayed on the cloth of the embroidery frame E at a predetermined position on the embroidery pattern, and a sewing machine with greatly improved usability can be provided.

Further, when the embroidery pattern sewing operation is continuously performed, the positioning is not performed each time, and the embroidery work efficiency can be made extremely excellent.

In particular, the pattern shape of the present invention does not display the pattern shape at the actual needle drop point, but displays the pattern shape itself on the cloth of the hoop E at a position outside the needle drop point. Since it is a configuration that
There is an advantage that the embroidery frame E can always be satisfactorily irradiated with the light emitted from the jaw B of the sewing machine without being disturbed.

The cloth display device DP includes a sewing machine arm portion B.
Since it is provided inside, it is a place with a relatively large space, easy to install and easy to adjust,
As a result, it can be provided at low cost.

[0033]

[Brief description of drawings]

FIG. 1 is a block diagram of the present invention.

FIG. 2 is a flowchart of the present invention.

FIG. 3 is another flowchart diagram of the present invention.

FIG. 4 is a perspective view of the present invention.

FIG. 5 is a schematic side view showing a state in which light is projected onto the hoop.

6 and 7 are schematic plan views of the embroidery pattern irradiated on the hoop.

[Explanation of symbols]

 A ... Sewing machine with embroidery function B ... Sewing machine arm D ... Bed surface DP ... Cloth display device 1 ... Pattern selection means 16 ... Display light source 26 ... Display color selection means ... Pattern shape

Claims (3)

[Claims] 1. In a sewing machine with an embroidery function, a pattern selection means that can be externally operated to select a desired sewing pattern from a plurality of sewing patterns, and a bed of the sewing machine below a display light source provided inside a sewing machine arm part. A cloth display device for irradiating the surface to display the pattern shape of the embroidery pattern, a calculation data storage means for storing arbitrary data of the surface display, and a stitch formation for sewing the embroidery pattern based on the data An embroidery pattern shape display device characterized by comprising means. 2. The embroidery pattern shape display device according to claim 1, further comprising display color selection means capable of appropriately selecting a light source color of the display light source. 3. The display device according to claim 1, wherein the light source color of the display light source is a fabric color for embroidery pattern sewing, a color corresponding to the detected fabric color is automatically detected, and the color can be projected. Embroidery pattern display device.