JPH0724160A - Embroidery sewing machine - Google Patents

Abstract

PURPOSE:To improve the efficiency of a sewing work by comparing the sewable range of a sewing machine side with the sewing range of a data side, and allowing data to execute automatically an arrangement direction change processing, in the case the sewing range of the sewing machine side jumps out of the sewable range. CONSTITUTION:Working cloth is supported by an embroidery frame on a bed part and set, and the embroidery frame is subjected to moving control in the X axis and the Y axis directions by a horizontal moving mechanism containing each of feed motors 16, 14 of the X axis and the Y axis. In such an embroidery sewing machine, in a controller 17 for controlling each of feed motors 16, 14 together with a needle bar selection motor 8 and a sewing machine motor 9, a sewable range sewn by a sewing needle, and a sewing range of data for sewing are stored in a first area and a second area of a RAM20, respectively. In such a state, whether the sewing range of the data side exists within the sewable range or not is decided by a CPU18, and when it is decided to be NO, the data is converted in an appropriate arrangement direction by a parallel movement, a rotational movement, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention particularly relates to an embroidery sewing machine capable of automatically performing a data layout direction conversion process.

[0002]

2. Description of the Related Art Conventionally, when sewing with an embroidery sewing machine, data is read and the sewing range of the data attached to the data is read out, or the sewing range is obtained by sequentially looking at the data so that the sewing range fits within the sewing range of the embroidery sewing machine. The data sewing position was set by moving the embroidery frame in parallel. By the way, the embroidery frame is usually a horizontally long rectangular shape (may be a vertically long rectangular shape), and the data is vertically long.
When the data does not fit in the embroidery frame, the operator judges it and performs a layout orientation conversion process such as rotating the data by 90 degrees so that the data fits in the frame.

[0003]

However, according to the above-described conventional data processing method, when the data does not fit within the frame, it is possible to sew it by performing the arrangement direction conversion processing such as rotating the data. This means that it is difficult for a general operator to notice, and even if a skilled operator or the like notices it, he or she must perform operations such as rotating data, which is very troublesome. It was

The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to automatically obtain data when the sewing range of data is out of the sewing range of the sewing machine. This is because the arrangement direction conversion process can be performed so that the data can be processed quickly and easily.

[0005]

In order to achieve this object, an embroidery sewing machine of the present invention has an embroidery machine having a sewing needle that moves up and down and an embroidery frame that supports a work cloth and moves relatively to the sewing needle. In the sewing machine, first storage means for storing a sewable range that is sewn by the vertical movement of the sewing needle in accordance with relative movement of the embroidery frame and the sewing needle, and a sewing range of data for sewing by the embroidery sewing machine are stored. The second storage means, the sewing possible range stored in the first storage means and the sewing range of the data stored in the second storage means are compared, and whether the data is within the sewing possible range. It is provided with a judging means for judging whether or not the data and a data moving means for changing the arrangement direction of the data when the judging means judges that the data does not fit in the sewable range.

[0006]

According to the embroidery sewing machine of the present invention, the sewing range stored in the first storage means is compared with the sewing range of the data stored in the second storage means, and data is stored in the sewing range. It is determined whether or not is set. As a result, when it is determined that the data does not fall within the sewable range, the data moving means converts the data arrangement direction into an appropriate state.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 2, the embroidery sewing machine main body is constructed by integrally forming an arm portion 2 extending from the rear side to the front side on a sewing machine table 1. A support case 4 having a plurality of (six in this case) needle bars 3 is provided at the tip of the arm 2. The needle bars 3 are laterally arranged side by side in a support case 4 so as to be vertically movable, and sewing needles 5 are attached to lower end portions protruding from the support case 4, respectively. For example, embroidery threads of different colors are supplied to each sewing needle 5 from a thread supply source (not shown) via the thread tension machine 6 and the balance 7.

As shown in FIG. 2, the support case 4 is attached to the arm portion 2 so as to be movable in the X-axis direction, and is moved by a needle bar selection motor 8. A driving mechanism for transmitting the driving force of the sewing machine motor 9 to the needle bar 3 and driving it vertically is provided in the arm portion 2. This driving force is transmitted only to one needle bar 3 located at a predetermined use position. Therefore, the needle bar selection motor 8 moves the support case 4 to drive it. The needle bar 3, that is, the color type of the embroidery thread is changed.

On the other hand, the sewing machine table 1 is provided with a bed portion 10 located below the needle bar 3, and although not shown, the bed portion 10 is driven by the sewing machine motor 9. A thread catcher or the like is provided.
This thread catcher is driven in synchronization with the needle bar 3 and cooperates with the sewing needle 5 to form embroidery stitches on the work cloth W.

The work cloth W is placed on the bed portion 10,
The embroidery frame 11 supports and sets it. Although not shown in detail, the embroidery frame 11 is composed of an outer frame and an inner frame that is removably fitted in the outer frame. By sandwiching the work cloth W between the outer frame and the inner frame, The work cloth W is supported so as to be stretched tightly inside the inner frame.

The embroidery frame 11 can be freely moved in the X-axis and Y-axis directions by the horizontal moving mechanism 12. The horizontal moving mechanism 12 moves the Y-axis direction moving frame 13 in the Y-axis direction on the sewing machine table 1 by a Y-axis feed motor 14 (see FIG. 3) and is connected to the embroidery frame 11 (outer frame). X-axis direction moving frame 15,
The X-axis feed motor 16 (see FIG. 3) is configured to move in the X-axis direction along the Y-axis direction moving frame 13.

In this case, the embroidery frame 11 is not limited to the one shown in the figure, and a plurality of types such as a circle having different shapes and sizes are prepared. One of the embroidery frames 11 is a sewing machine. The table 1 (X-axis direction moving frame 15) is set to be replaceable.

The respective mechanisms configured as described above are controlled by a control device 17 which is built in the sewing machine table 1 and includes a microcomputer or the like. As shown in FIG. 3, the control device 17 includes CPUs 18 and R.
An OM 19 and a RAM 20 are connected to each other via a bus 21, and an input / output interface 22 is connected to the bus 21.

The input / output interface 22 is provided with motor drive circuits 23, 24, 25 and 26 for driving the sewing machine motor 9, the X-axis feed motor 16, the Y-axis feed motor 14 and the needle bar selection motor 8, respectively. It is connected.
As a result, the control device 17 causes the sewing machine motor 9 and the X-axis feed motor 1 to operate based on the embroidery data stored in the RAM 20, the control program stored in the ROM 19, and the like.
6, the Y-axis feed motor 14 and the needle bar selection motor 8 are controlled to automatically execute the embroidery forming operation on the work cloth W.

As shown in FIG. 2, the control board 2 is provided at the rear side of the sewing machine table 1.
7. Display device 28 comprising, for example, an LCD display
A floppy disk drive (FDD) 29 is provided and is connected to the input / output interface 22. Although not shown in detail, the control board 2
7 is provided with a start switch for executing a sewing operation, various input keys for reading embroidery data, setting the number of embroidery, and the like.

The RAM 20 is, as shown in FIG.
A stitch data storage area 20A for temporarily storing the sewing data, a data sewing area storage area 20B for storing the sewing range of the stitch data, and a frame sewing for storing the sewable range when the currently attached embroidery frame is used. Possible area storage area 20C and counter area 20
D etc. are provided.

The data sewing area storage area 20B of the RAM 20 constitutes a second storage means for storing the sewing range of the data to be sewn by the embroidery sewing machine, and particularly the frame of the RAM 20. The sewable area storage area 20C includes the embroidery frame 11 and the sewing needle 5
It constitutes a first storage means for storing the sewing range that is sewn by the vertical movement of the sewing needle 5 in accordance with the relative movement of the.

This embodiment is constructed as described above.

The operation based on the above configuration will be described below.

Now, the sewable area by the frame is shown in FIG.
In the case of the range (horizontal p, vertical q) shown in (a) and the sewing range of the data is the rectangle (horizontal r, vertical s) shown in FIG. 5B, the processing flow is as follows. Like First, as shown in FIG. 1, the sewable area of the frame is set manually or automatically. Here, variables WV (height), WH
The values of q and p will be entered in (width), respectively (S1
01 and S indicate steps. The same applies below). Then, the stitch data is read from the floppy disk or the like set in the FDD 29 (S102), and the height of the sewing area attached to the data is substituted into the variable LV (S10).
3) Substitute the sewing area length into the variable LH (S10)
4).

Then, it is determined whether WV ≧ LV, that is, whether the height of the data is equal to or less than the height of the sewable area (S105). Since q <s now, it becomes NO and S10
Proceed to 7. If YES, the process proceeds to S106, but if there is no WH ≧ LH, the process also proceeds to S107. S
In step 107, the stitch data is rotated by 90 degrees, and the process proceeds to the next steps S108 and S109 to rewrite the variables LV and LH with the height and width obtained from the rotated stitch data. Then, the process proceeds to S110. YES in S106, or the process comes to S110 after S109, but here in S110
Along with 111, it is determined whether the data is within the sewing range of the frame. N for both S110 and S111
If it is O, it means that it cannot fit in the sewable area of the frame in either the vertical or horizontal direction. Therefore, the process proceeds to S112 and a display prompting reduction of the data is displayed, and this process is ended. Further, in a case where the image is rotated by 90 degrees so as to be within the frame as in the example of FIG. 5, both S110 and S111 are YES, and this process is terminated without displaying anything.

In the processing steps of S105 and S106, the sewable range stored in the frame sewable area storage area 20C which is the first storage means and the data sewing area storage area which is the second storage means. The sewing function of the data stored in 20B functions as a judgment means for judging whether or not the data is within the sewing range, and in the processing step of S107, the sewing can be performed by the judgment means. If it is determined that the data does not fit within the range, the data transfer unit functions as a data moving unit that changes the arrangement direction of the data.

In this sewing machine, the sewing start position is set by aligning the needle with the center position of the data. If the operator does not give any instruction, the frame automatically moves to the position around the needle before the start. To do.

After these processes are performed, if the start button is pressed by the operator, the sewing machine starts sewing.

As described above, in the embroidery sewing machine of the present invention, when the sewing range of the data is out of the sewing range of the sewing machine, the data is automatically rotated so that the data arrangement can be changed without any trouble. It becomes possible to improve the efficiency of the sewing work.

In the present embodiment, the sewing range on the data side is represented by a rectangle, and the rotation angle of the data automatically performed on the sewing machine side is 90 degrees or 270 degrees, but the sewing range on the data side is not rectangular. If so, the rotation angle on the sewing machine side may be other than the right angle, and the data may be accommodated, and the angle values are not particularly concerned. For example, it may be checked whether or not the data fits while rotating in units of 1 degree.

In this embodiment, the sewing range attached to the data is used or the rectangular sewing range is obtained from the data. For example, it is determined whether or not one stitch of stitch data exceeds the sewing range. You may When this method is used, it may be possible even when it is impossible to sew.

Although the stitch data has been described as an example in this embodiment, other block data or outline data may be used. In this case, if the sewable range of the frame is horizontally long and the data is vertically long, the data should be rotated 90 degrees so that either the vertical or horizontal direction of the data is expanded at a magnification that fills the sewable range of the frame. If it is automatically performed, a sewn product sewn at the maximum possible magnification can be easily obtained without changing the data aspect ratio.

Besides, various modes can be applied without departing from the gist of the present invention.

[0031]

As is apparent from the above description,
The embroidery sewing machine of the present invention can automatically change the data arrangement direction when the sewing range of the data is out of the sewing range of the sewing machine. It is possible to quickly change the arrangement of the sewing machine, and it is possible to greatly improve the efficiency of the sewing work.

[Brief description of drawings]

FIG. 1 is a flow chart showing a data layout redirection processing process by this apparatus.

FIG. 2 is a perspective view showing a schematic configuration of an embroidery sewing machine.

FIG. 3 is a block diagram showing an electrical control configuration of the present apparatus.

FIG. 4 is a diagram showing a storage area of a RAM.

FIG. 5 is a diagram showing a size relationship between data and a sewing range.

[Explanation of symbols]

 2 Arm 5 Sewing needle 11 Embroidery frame 18 CPU 20 RAM 20B Data sewing area storage area 20C Frame sewable area storage area W Work cloth

Claims (1)

[Claims] 1. An embroidery sewing machine having a sewing needle that moves up and down and an embroidery frame that supports a work cloth and moves relatively to the sewing needle, wherein the sewing needle moves up and down as the embroidery frame moves relative to the sewing needle. First storage means for storing a sewable range that is sewn by motion, second storage means for storing a sewing range of data for sewing with an embroidery sewing machine, and sewing stored in the first storage means A determination means for comparing the possible range with the sewing range of the data stored in the second storage means to determine whether or not the data is within the possible sewing range; An embroidery sewing machine comprising: a data moving unit that changes the arrangement direction of the data when it is determined that the data does not fit.