JP2704409B2 - Computer embroidery sewing machine that can select multiple embroidery methods - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention enables a plurality of different types of embroidery methods to be selected based on one original picture figure by a computer embroidery sewing machine, thereby facilitating a plurality of types of embroidery. It is something that can be done.

(Prior Art) Conventional embroidery work by an embroidery sewing machine only performs embroidery by one type of embroidery method based on embroidery data stored based on one original figure, and at most converts or tilts the size or direction of embroidery. I could only change the degree of change.

(Problems to be Solved by the Invention) The present invention is to enable embroidery patterns to be selectively embroidered by a plurality of types of embroidery methods based on one original picture figure, and to provide a variety of embroidery pattern selections.

(Means for Solving the Problems) According to the present invention, there is provided a needle fixed to a lower end of a needle bar which is moved up and down in conjunction with the rotation of a drive shaft supported by a machine frame, and the needle bar is swung to the right and left together with the needle. An amplitude control drive device for moving, a thread wheel catcher for capturing a thread wheel carried on the needle in cooperation with the vertical motion of the needle, and a work piece of the sewing machine in cooperation with the vertical motion of the needle. A work transfer device that transfers the work on the machine frame; and a storage device that stores control data for moving the amplitude control drive device and the work transfer device in synchronization with the rotation phase of the drive shaft. In a computer embroidery sewing machine, an original figure is read, and original figure data including contour data of the original figure, dot data in the contour, and division line locus data divided into embroidery units in the contour are stored. A first storage device and the first storage device; A second storage device for storing a program for creating and storing embroidery data for performing a plurality of embroidery operations such as contour sewing embroidery, outer frame sewing embroidery, bobbin thread embroidery, and cross stitch embroidery from the original drawing data stored in the storage device. And an embroidery sewing method selection device for selecting an embroidery sewing method from a plurality of embroidery sewing methods such as the contour sewing embroidery.

(Operation) The present invention reads one original picture figure, creates and stores original drawing data, and automatically stores a plurality of types of embroidery data having different embroidery methods based on the original drawing data in accordance with a program provided for each. In this case, a desired embroidery method can be selected from the plurality of types of embroidery data by operating a selection switch, and a plurality of types of embroidery can be easily performed from one original image figure. It is a feature.

(Embodiment) One embodiment of the present invention will be described below. 1 is a sewing machine. The sewing machine has a needle bar that moves up and down in conjunction with rotation of a drive shaft supported in a machine frame of an arm bed. A thread catcher that catches a thread wheel in cooperation with a needle fixed to a lower end of a rod, an amplitude control drive device that causes the needle bar to perform an amplitude movement to the left and right,
A work transfer device including a feed dog device for transferring the work placed on the upper surface of the bed machine frame or a work holding device for holding and transferring the work in synchronization with the vertical movement of the needle bar; A first storage unit for storing control data of the amount and direction of movement of the work transfer device and the amount of amplitude movement of the needle bar.

Reference numeral 2 denotes an input device which reads an original graphic (see FIG. 2) using the input device, and reads dot data (see FIG. 3) in the outline area of the original graphic, outline data inside and outside the original graphic, and one of the data in the original graphic. RAM (storage device capable of both reading and writing) of original drawing data consisting of division line data divided into embroidery units
To selectively read from a number of original graphics stored in an additional storage such as an FD (floppy disk) or a floppy disk drive (FDD). 4 and must be stored in the temporary storage device 3 from the FDD device. In any case, the data is stored in the storage device 3 via the I / O port 5 and the CPU (central processing unit) 6. Is transmitted.

A program for creating graphic data (original data is composed of dot data, outer contour data, inner contour data, and dividing line data) from the original graphic is transmitted according to a flowchart shown in FIG.

The original data is data for generating embroidery data for each embroidery method, and is composed of the original shape of the pattern, the contour line, and the dividing line data.The original data is directly input and registered in the computer CPU 6 and the zigzag embroidery data is used. In some cases, zigzag data is input and original drawing data is automatically generated.

A program routine for generating original figure data from zigzag data is performed as shown in FIG. 6, but the character or pattern zigzag data developed on the XY coordinates in FIG.
Alternatively, the part fetched from the FDD device 4 into the primary storage device 3 is expanded into XY coordinates as shown in FIG. 3, and the part is registered as dot data, and then the zigzag outer trajectory is stored in the XY memory according to the zigzag sewing. In the overlapping part in the same area, the previous zigzag area is deleted, and only the zigzag locus stored afterward is registered as data. That is, c and d in the I region shown in FIG.
Is removed at the time of storage of the II region, and the bold line portion of the h region of the II region and the bold line portions of b and a of the I region are deleted at the time of the storage of the III region, and are stored from a set of original drawing data. (A portion indicated by a double line in FIG. 2), a program process for extracting line trajectory data of the outer periphery from the original image data, and registering the outer periphery data as outer contour line data in the original image data, The inner contour is registered as inner contour data, and the remaining edges are registered as division line data.

In addition to inputting the original graphic by the above-described method, the ten-key pad 9 of the keyboard 8 shown in FIG. 4 is selected from those stored in a permanent storage device 3 'such as a ROM (read only storage device) mounted in the machine frame. The original drawing data can also be read out by operating and inputting the code number of the original graphic. The storage device 3 'stores a program for creating various types of embroidery data, such as contour line embroidery data, outer frame sewing embroidery data, bobbin thread embroidery data, and cross-stitch embroidery data, based on original drawing data of an original graphic. , The keyboard 8
By selecting and operating the embroidery selection switches S ₁ ... Sn 10, the respective embroidery data can be generated from the original graphic. The program for generating each embroidery data is the fifth
This is as shown in the flowchart of FIG. Each embroidery sewing data generated by the program from the original drawing data is immediately transmitted to the sewing machine 1 via the drive circuit 7, and the movement of the embroidery creating mechanism in the sewing machine is controlled to execute various embroidery sewing.

When the contour sewing is selected, embroidery data is generated by moving the trajectory with zigzag sewing or a hand-shaped seam of a hook using the outer contour data and the inner contour data of the original drawing data. It is applied to attachments.

In the outer frame sewing embroidery, a desired shape is surrounded using only the outer contour data, and embroidery data is sewn by zigzag sewing or sand sewing inside the enclosed shape.

Where sewing an outline L ₀ of figure S shown as an application example of the outer frame sewing embroidery in FIG. 7 will be described below.

The hatched line W shown in FIG. 8 indicates the range of the frame stitching. This oblique line W
Is generated by filling a portion with a zigzag or a needle line, the range of the oblique line W is determined by the inner and outer lines.

The inner peripheral line L ₁ is first set to circumscribed rolling locus of the radius r and the original drawing data contour L _0, becomes as when r ₁ = 0 is Figure 7, r ₁ is as Figure 8 when a large. The peripheral line L ₂ and the inner peripheral line L ₁ and the case of the parallel lines at regular intervals b (Figure 8), for any profile (elliptical ninth view, if the circle is the 10 to 11 FIG. ).

When filling the inside of the peripheral line L ₂ in a zigzag sewing or Tatami stitch is necessary to determine the inclination direction θ of the zigzag sewing.

For example, as shown in FIG. 11, the entire range surrounded by the outer peripheral line may be fixed at θ, or one point c may be determined as shown in FIG. 10, and the inclination angle may be changed radially from point c.

In the lower thread embroidery, the embroidery is performed with the cloth surface on the lower side, the lower thread T is made of a thicker color thread, and the tension of the upper thread is made larger than the tension of the lower thread. And reciprocate with parallel sewing lines as shown in (1). Finally, one round of sewing is performed on the contour line.

In the cross-stitch embroidery, data for embroidering the cross-stitch in the outline is generated by using the dot data in the original drawing data, and the embroidery can be performed based on the data.
See Figure 13).

(Effect of the Invention) Since the present invention is as described above, one original graphic (the original graphic is stored in the storage device inside the sewing machine or the FD
D, which is read by adding the stored data as shown in FIG. 1D, or is read directly from an original graphic by an input device such as an image scanner) to generate the original drawing data from the original graphic. Desired embroidery data is selectively generated by various embroidery data generation programs stored in the storage device based on the embroidery data, and embroidery sewing is obtained by the embroidery data. The production operation has been remarkably speeded up and the operation has been simplified, which is practically effective.

[Brief description of the drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a block diagram showing an outline of the present invention, FIG. 2 is a development view of an original drawing of the present invention, and FIG. FIG. 4 is a plan view of the keyboard of the present invention, FIG. 5 is a flowchart of a program of the present invention, FIG. 6 is a flowchart for generating original drawing data, and FIGS. FIG. 12 is a lower thread embroidery diagram of the present invention, FIG. 13 is a cross stitch embroidery diagram of the present invention, 1 is a computer embroidery sewing machine, 3 'is a control data storage device, 8 Is an embroidery sewing method selection device.

Claims (2)

(57) [Claims] A needle fixed to a lower end of a needle bar which is moved up and down in conjunction with the rotation of a drive shaft supported by a machine frame; A thread catcher for catching a thread wheel carried by the needle in cooperation with the vertical movement of the needle, and an operation of transporting a work on the machine frame of the sewing machine in cooperation with the vertical movement of the needle An original embroidery machine in a computer embroidery sewing machine including an object transport device and a storage device that stores control data for moving the amplitude control drive device and the work object transport device in time with the rotation phase of the drive shaft. A first storage device that reads the original drawing data and stores the original drawing data including the outline data of the original figure, the dot data in the outline, and the division line locus data divided into embroidery units in the outline. The original drawing stored in the first storage device A program that creates and stores embroidery data for multiple embroidery such as contour embroidery, outer frame embroidery, bobbin thread embroidery, and cross stitch embroidery that sew embroidery on the contour and outside or inside the contour from the data A computer capable of selecting a plurality of embroidery methods, comprising: a second storage device for storing; and an embroidery sewing method selection device for selecting an embroidery sewing method from among the plurality of embroidery sewing methods such as the contour sewing embroidery. Embroidery sewing machine. 2. The computer embroidery sewing machine according to claim 1, wherein in a portion where the original drawing data overlaps in the same area, a previous sewing area is deleted and data stored after the sewing area is registered.