JPH0771592B2 - Sewing machine with a pattern selection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is formed by moving a needle up and down while relatively moving a work cloth holding means and a needle on the basis of pattern data stored in advance in a storage means. The present invention relates to a sewing machine that forms a pattern on a work cloth with a large number of stitches.

[Prior Art] Conventionally, when a predetermined stitch pattern is repeatedly formed on a work cloth by a sewing machine of this kind when creating a patch or the like, pattern data corresponding to the predetermined stitch pattern is read from a storage device, One stitch pattern is formed on the work cloth by moving the needle up and down while moving the work cloth and the needle on the work cloth holding device relative to each other based on the data, and then,
The work cloth holding device is moved based on the operation of the jog key or the like to change the relative positional relationship between the work cloth and the needle, and in that state, the sewing start key is operated to operate the sewing machine again, The same stitch pattern is formed at a position different from the position where the stitch pattern is formed.

[Problems to be Solved by the Invention] However, in the above-described sewing machine, when the same stitch pattern is repeatedly formed, the jog key and the sewing start key must be frequently operated, which makes the operation extremely complicated. Then, there was a problem that the production efficiency was lowered.

The present invention has been made to solve the above problems, and its object is to improve the operability without frequently operating the jog key, the sewing start key, or the like when repeatedly forming the same stitch pattern. It is to provide a sewing machine equipped with a pattern selection device capable of improving production efficiency by improving the sewing machine.

[Means for Solving the Problem] In order to achieve the above-mentioned object, in the present invention, a selection unit for selecting a predetermined pattern data from a plurality of pattern data stored in a storage unit, and the selection thereof. Inputting means for inputting the number of repetitive formations of the stitch pattern formed according to the pattern data selected by the means, and operation of the sewing machine according to the pattern data, the number of repetitive formations and a predetermined arrangement pattern of the stitch pattern And control means for controlling.

[Operation] When the predetermined pattern data is selected from the plurality of pattern data stored in the storage unit by the selection unit and the number of stitch patterns to be repeatedly formed is input by the input unit,
The control means controls the operation of the sewing machine according to the pattern data, the number of repetitive formations, and a predetermined arrangement pattern of the stitch patterns, and automatically forms a plurality of stitch patterns repeatedly.

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

As shown in FIG. 2, a sewing machine main body 3 equipped with a sewing machine motor 2 is mounted on a table 1 of the sewing machine, and a needle 4 movably supported on an arm portion 3a of the sewing machine and a bed portion 3b are provided. A stitch forming device 5 for forming a stitch is configured by the above-described thread catcher (not shown). A cloth holding frame 6 movable in the X direction and the Y direction is arranged on the table 1, and the work cloth W is arranged on the cloth holding frame 6 and the work cloth holding frame 7 is fitted thereto, thereby W is stretched and held at a position corresponding to the needle 4. Both frames 6 and 7 constituting the work cloth holding means are moved relative to the needle 4 in the X and Y directions by the operation of the work cloth feeding device 8 including an X direction and Y direction drive motor (not shown). As a result, stitch patterns such as characters and figures are formed on the work cloth W.

A keyboard 11 constituting selection means and input means is arranged on the table 1, and a selection key for selecting pattern data corresponding to various stitch patterns on the upper surface of the keyboard 11 and a sewing start for starting sewing A large number of keys such as a key and a mode setting key for setting a multi-piece taking mode for repeatedly forming the same stitch pattern are arranged. Further, on the table 1, there is provided a display device 12 for displaying the selected stitch pattern, its arrangement direction and the number of arrangements (repetitive forming direction and repetitive forming number) and the like.

As shown in FIG. 1, a central processing unit (CPU) 13 constituting the control means is a work consisting of a program memory 14 including a ROM storing a program for controlling the operation of the entire sewing machine and a RAM storing pattern data and the like. And a memory 15 for use. External storage device 16 consisting of a magnetic disk drive
Is for forming various stitch patterns such as letters and figures.
A large number of position data indicating the relative positions of the needle 4 and the work cloth holding means 6 and 7 are stored for each stitch pattern, and are connected to the CPU 13 via the input / output interface 17.

Further, a keyboard 11 is connected to the CPU 13 through an input / output interface 17, and when a stitch pattern is selected by a key operation on the keyboard 11, the CPU 13 outputs the stitch pattern data from the external storage device 16. It is read and stored in the working memory 15 as shown in FIG. In addition, when the arrangement direction and the number of stitch patterns are input in the state where the multi-collection mode is set by the key operation, the work cloth movement amount between the stitch patterns is calculated, and shown in FIG. It is stored in the working memory 15 as shown.

Further, the CPU 13 controls the operations of the stitch forming device 5, the work cloth feeding device 8 and the display device 12 according to the data in the working memory 15 and the program in the program memory 14.

Now, using the sewing machine configured as described above, for example, as shown in FIG. 6, unit stitch patterns of "a", "b", and "c" are combined to sew "abc". The case of repeatedly forming the eye pattern will be described. Figure 4 (a),
Step S1 of the flowchart shown in (b) (hereinafter, simply
When the unit stitch patterns of "a", "b", and "c" are selected by the key operation on the keyboard 11 in S1), the CPU 13 stores those pattern data in the external storage device. It is read from 16 and stored in the working memory 15 as a combined stitch pattern for repeatedly forming them (S2).

Next, when the multi-collection mode is set by the key operation on the keyboard 11 in S3, the CPU 13 displays a screen indicating the type of arrangement direction on the display device 12 as shown in FIG. Prompt for that choice (S4, S5). Therefore, when the array direction of, for example, "1. vertical array" or "2. horizontal array" is selected by key operation, the CPU 13 stores data regarding the array direction in the working memory 15. Here, when the arrangement direction of “3. Oblique arrangement” is selected, the inclination angle θ shown in FIG. 5A may be keyed and stored in the working memory 15.

After that, the CPU 13 displays a screen for inputting the number of repeated formations, that is, the number of arrangements shown in FIG. 5 (b) on the display device 12, and prompts the input of the number of arrangements of the repeating stitch pattern (S6, S7). . In response to this, the number of arrays in the X and Y directions is "3" x as shown in FIG.
When "2" is input, the CPU 13 stores the data in the working memory 15, and also displays the respective numerical values and the total number of arrays on the display device 12.

Next, the CPU 13 displays the margin input screen shown in FIG. 5C on the display device 12 and prompts the user to input the margin space Mx, My (unit: mm) between the stitch patterns to be repeatedly formed (S8).
In response to this, when the margin spaces Mx and My in the X and Y directions are input as "010" and "020", respectively, by the key operation, the CPU 13 stores the data in the working memory 15 (S9).

Next, the CPU 13 causes the display device 12 to display a screen for prompting thinning of the stitch pattern at the specific position in the previously set repeated arrangement state of the stitch pattern (S10). So keyboard 11
When the number of the thinning position or the like, such as "4" or "6", is input by the above key operation, the CPU 13 indicates the number of the position of the stitch pattern to be thinned as indicated by the diagonal lines in FIG. 5 (b). Is displayed and the thinning-out number is added to the working memory.
It is stored in 15 (S11, S12). If thinning is not performed, the process jumps to the next step S13.

In S13, the CPU 13 waits for the operation of the sewing start key, and when the key operation is performed, the CPU 13 uses the combination stitch pattern data (selection pattern data) previously created, and the array direction, array number and thinning number. The relative position data between the needle 4 and the work cloth W for creating the stitch pattern group in the arrangement mode shown in FIG. 6 is created from the arrangement information as shown in FIG. It is stored again in the memory 15 (S14). This repetitive pattern creation data is composed of relative position data for the repetitive number of stitch patterns that are repeatedly formed and movement amount data of the work cloth W between each stitch pattern.

After that, the CPU 13 sequentially reads the repetitive pattern creation data from the work memory 15, operates the stitch forming device 5 and the work cloth feeding device 8 in accordance with the data, and shows, for example, the "abc" stitch pattern in FIG. Repeatedly and automatically created in numerical order (S15 to S17). When the thinning number is input, the stitch pattern corresponding to the number is not formed.

As described above, in the present embodiment, when the same stitch pattern is repeatedly formed, it is not necessary to frequently operate the jog key or the sewing start key, and the stitch pattern or arrangement information to be repeatedly formed is selected and input. The pattern data and arrangement information of the stitch pattern can be stored in advance and the stitch pattern can be automatically and easily formed repeatedly based on the data by an extremely simple operation. Therefore, operability can be improved and production efficiency can be improved.

The present invention is not limited to the above-mentioned embodiment, but can be embodied in the following modes. That is, (a) A single stitch pattern, for example, “a” is repeatedly formed.

(B) Set the arrangement pattern of the stitch pattern to a circular shape or another shape.

(C) A large number of stitch pattern arrangement forms are stored in advance in the program memory and selected by a key operation.

[Effects of the Invention] As described in detail above, according to the present invention, when the same stitch pattern is repeatedly formed, it is not necessary to frequently operate the jog key, the sewing start key, etc. It has an excellent effect that efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a sewing machine control device embodying the present invention, and FIG. 2 is a perspective view showing the external appearance of the sewing machine.
FIG. 4 is an explanatory view showing the stored contents of the working memory, FIGS. 4 (a) and 4 (b) are flow charts, and FIG.
(C) is an explanatory view showing a display state of the display device, and FIG. 6 is an explanatory view showing a sewing state. 6 ... cloth holding frame, 7 ... cloth holding frame (work cloth holding means is constituted by 6, 7), 11 ... keyboard as selection means and input means, 13 ... CPU as control means, 1
6 ... External storage device as storage means, W ... Work cloth.

Claims (1)

[Claims] 1. Formed by moving the needle (4) up and down while relatively moving the work cloth holding means (6, 7) and the needle (4) based on pattern data stored in advance in the storage means (16). In a sewing machine for forming a pattern on a work cloth (W) by a large number of stitches, a selection unit (11) for selecting a predetermined pattern data from a plurality of pattern data stored in the storage unit (16). )
An input means (11) for inputting the number of repetitive formations of the stitch pattern formed according to the pattern data selected by the selection means (11), the pattern data, the number of repetitive formations and a predetermined sewing number. A sewing machine equipped with a pattern selection device, which is provided with a control means (13) for controlling the operation of the sewing machine according to the arrangement pattern of the eye pattern.