JPH1147470A - Pattern sewing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the sewing efficiency by reducing the time loss in the displacement of a holding frame for an article to be sewn for confirming a sewing zone in a selected pattern. SOLUTION: In a pattern sewing machine, when a signal for changing a sewing position of a selected pattern is delivered from a display means 4 during displacement of a holding frame for an article to be sawn, a control means 15 carries out from the beginning the displacement of the holding frame 9 for a new sewing zone after the changing, before completion of the displacement of the holding frame 9 before the changing. Thereby, the conventional inevitable time loss for waiting can be saved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a shape sewing machine.

[0002]

2. Description of the Related Art Conventionally, for example, in an embroidery sewing machine or the like as a shape stitch sewing machine, an embroidery frame (a workpiece holding frame).
While moving the cloth (sewn object) set in the X-Y direction, a desired embroidery pattern such as a character or a pattern can be sewn.

In this embroidery sewing machine, when a predetermined sewing range (confirmation) switch is turned on after a pattern is selected and before the selected pattern is sewn, a vertex position of a quadrangle defining the appearance of the selected pattern is set. The switch is configured so that the embroidery frame is moved in the X-Y direction so as to be sequentially positioned at the needle lower position, so that the sewing range of the selected pattern can be confirmed, and the sewing position of the selected pattern is changed (moved). Is operated, the sewing position of the selected pattern is changed according to the switch operation.

[0004]

However, the embroidery sewing machine has the following problems. That is, even if the operator operates the switch for changing the sewing position of the selected pattern during the embroidery frame moving operation by turning on the sewing range switch, the switch operation is not accepted, and the embroidery frame moving operation before the change is performed. Since it is necessary to wait for completion, there is a problem that a time during the process is lost and sewing efficiency is reduced.

Therefore, according to the present invention, if the sewing position of the selected pattern is changed during the moving operation of the sewing object holding frame for confirming the sewing range of the selected pattern, the operation waits for completion of the embroidery frame moving operation before the change. An object of the present invention is to provide a shape sewing machine capable of improving a sewing efficiency by re-executing a workpiece holding frame moving operation corresponding to a sewing range after the change.

[0006]

According to a first aspect of the present invention, there is provided a shape stitch sewing machine for confirming a sewing range of a selected pattern after the pattern is selected and before the selected pattern is sewn. Means for generating a signal for changing the sewing position of the selected pattern by manual operation during the moving operation, and a sewing area after the change when the signal is input. And a control means for calculating the movement of the sewn object holding frame corresponding to (i) and executing the movement operation again.

According to a second aspect of the present invention, in order to achieve the above object, in addition to the first aspect, when a signal for changing the sewing position of the selected pattern is input, the control means performs the sewing before the change. The sewing object holding frame moving operation corresponding to the range is continued to the next predetermined point that defines the sewing range, and then the sewing object holding frame moving operation corresponding to the changed sewing range is performed.
It is characterized by being executed from the beginning.

According to a third aspect of the present invention, in addition to the first aspect, when a signal for changing the sewing position of the selected pattern is input, the sewing machine before the change is formed. It is characterized in that the sewing object holding frame moving operation corresponding to the range is immediately stopped, and then the sewing object holding frame moving operation corresponding to the changed sewing range is executed from the beginning.

According to the above-described shape sewing machine of the present invention, when a signal for changing the sewing position of the selected pattern is input during the movement of the workpiece holding frame for confirming the sewing range of the selected pattern. The sewing object holding frame moving operation corresponding to the sewing range after the change is executed from the beginning without waiting for the sewing object holding frame moving operation before the change to be completed. Therefore, the conventional waiting loss time is omitted.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing an embroidery sewing machine as a shape sewing machine according to an embodiment of the present invention. In FIG. 1, a sewing machine main body 1 includes a sewing machine bed 2 and a sewing machine head 3 erected on the sewing machine bed 2. The sewing head 3 is provided with a liquid crystal screen 4 as a display means (to be described in detail later).

An embroidery machine main body 5 is detachably mounted on the sewing machine bed 2 via a connector. The embroidery machine main body 5 includes an X drive motor 12 (see FIG. 2) and an X moving member that moves in the X direction by driving the X drive motor 12. The upper part of the X moving member is exposed on the embroidery machine main body 5, and the carriage cover 6 is fixed to the exposed upper part. Inside the carriage cover 6, a Y drive motor 13 (see FIG. 2) mounted on the X movement member, and a Y movement that moves in the Y direction (a direction orthogonal to the X direction) by driving the Y drive motor 13 The embroidery frame holding member 7 is fixed to the Y moving member, and the embroidery frame holding member 7
An embroidery frame 9 is mounted.

That is, the embroidery frame 9 is moved in predetermined X and Y directions by driving the X and Y drive motors 12 and 13 in accordance with the input on the liquid crystal screen 4 (for example, the selected embroidery pattern). The sewing machine 8 is formed so that a desired embroidery pattern can be formed in cooperation with the vertical movement of the sewing needle 8 driven by the main motor 14 (see FIG. 2) of the hour sewing machine.

The embroidery frame 9 is, as shown in FIG.
An outer frame 10 detachably attached to the embroidery frame holding member 7,
And an inner frame 11 fitted into the outer frame 10. By setting, for example, a cloth as a sewing object on the outer frame 10, the inner frame 11 is fitted into the outer frame 10 in this state.
The cloth is set in the embroidery frame 9.

Next, a control system of the embroidery sewing machine will be described with reference to FIG. C constituting the control means
On the output side of an I / O port 16 of a PU (Central Processing Unit) 15, the X drive motor 12 is connected via a driver 17, and the Y drive motor 13 is connected via a driver 18. Further, a main motor 14 of the sewing machine is connected via a driver 19.

On the other hand, the liquid crystal screen 4 is connected to the input / output side of the I / O port 16 of the CPU 15.

Further, a CPU 2 stores a control operation procedure of the embroidery sewing machine in the form of a program.
0 is connected so as to be able to be input, and a RAM 21 for storing data, operation results, and the like is connected so as to be able to input and output.

The CPU 15 sends a command to cause the liquid crystal screen 4 to perform a predetermined screen display related to the input, and responds to a direct touch input signal by an operator on the liquid crystal screen 4 to display the predetermined screen on the liquid crystal screen 4. Has a function of sending a command to display the screen.

The CPU 15 also has a function of transmitting a predetermined drive / stop command to the drivers 17, 18, and 19 in response to a direct touch input signal by an operator on the liquid crystal screen 4.

Particularly, in the present embodiment, the CPU
15 is a sewing range (confirmation) switch 28 at a predetermined time.
The arrow key 32 (see FIG. 10) for changing the sewing position of the selected pattern is operated while the embroidery frame moving operation for confirming the sewing range of the selected pattern is being performed while (see FIG. 10) is turned on. Then, it has a function of sending a command to execute the embroidery frame moving operation corresponding to the changed sewing range from the beginning.

Next, the operation of the embroidery sewing machine thus configured will be described with reference to flowcharts shown in FIGS. 3 to 6 and liquid crystal screen displays shown in FIGS. 7 to 10.

First, an embroidery pattern group is displayed on the liquid crystal screen 4, and the operator selects any one of the embroidery pattern groups. Then, on the liquid crystal screen 4, as shown in FIG.
An embroidery pattern selection screen 22 corresponding to the selected embroidery pattern group is displayed. The operator selects one of the embroidery patterns on the embroidery pattern selection screen 22 displayed on the liquid crystal screen 4. Here, in the present embodiment, for convenience of explanation, the embroidery pattern 2 on the upper left of the figure displayed on the embroidery pattern selection screen 22 is shown.
It is assumed that the embroidery pattern selection switch 24 corresponding to No. 3 has been directly touched (hereinafter simply referred to as touch).

Then, the liquid crystal screen 4 is switched to a screen 25 after the embroidery pattern is selected and before editing shown in FIG. 8, and the embroidery pattern 23 is displayed at the center of the screen portion 26 on the left side in the figure. That is, if sewing is performed in this state, the embroidery pattern 23 is sewn at the center of the embroidery frame 9.

On the other hand, the edit switch 2 is displayed on the screen 25.
7 is also displayed. When the editing switch 27 is touched, the screen is switched to an editing screen 29 shown in FIG. At this time,
An embroidery pattern 23 is displayed at the center of the screen portion 26 on the left side of the figure in the same manner as described above.

The editing screen 29 also displays a position / rotation switch 30.
When is touched, the screen is switched to the screen 31 shown in FIG.
At this time, the embroidery pattern 23 is displayed at the center of the screen portion 26 on the left side in the figure in the same manner as described above.

An arrow key 32 for changing the sewing position of the embroidery pattern 23 (a switch for changing the sewing position of the selected pattern 23; a movement direction instruction key) is displayed on the upper right portion of the screen 31 in the figure. Is done. The arrow keys 32 are provided with arrows shown in eight directions, up, down, left and right, including a diagonal direction, with the current position as a center. It is moved by a fixed amount.

A rotation direction key 33 for instructing a rotation direction when rotating the embroidery pattern 23 is displayed on a screen portion at the right center of the screen 31 in the figure. Touching the right side portion of the rotation direction key 33 in the figure rotates the embroidery pattern 23 clockwise, and touching the left side portion of the rotation direction key 33 in the figure rotates the embroidery pattern 23 counterclockwise.

A rotation angle key 34 for instructing a rotation angle when rotating the embroidery pattern 23 is displayed in a lower right portion of the screen 31 in the drawing. Each time the upper key 34a of the rotation angle key 34 is touched, the embroidery pattern 23 is rotated by 5 ° in the direction designated by the rotation direction key 33, and the lower key 34b of the rotation angle key 34 in the drawing. Each time is touched, the embroidery pattern 23 is rotated by 90 ° in the direction designated by the rotation direction key 33.

Here, the program shown in FIG. 3 starts in a state of the screen 25 before the embroidery pattern is selected and before the editing. First, in step 1, the coordinates (x, y) of the center position O of the selected pattern 23 are read from the ROM 20, and then in step 2, the operator operates the rotation direction key 33 and the rotation angle key 34 on the screen 31. If the embroidery pattern 23 is rotating, the rotation angle θ (see FIG. 10) of the embroidery pattern 23 is read. On the other hand, in step 2, the embroidery pattern 23
If is not rotating, skip step 2 and proceed to step 3.

In step 3, the size (P, Q) of the embroidery pattern 23 is read from the ROM 20. here,
The sizes (P, Q) refer to the length of one side of a rectangle that defines the appearance of the selected pattern and the length of the other side orthogonal to the one side (see FIG. 10).

Next, in step 4, the coordinates of the four vertices A, B, C, and D of the quadrangle defining the appearance of the embroidery pattern 23 shown in FIG. Then, in step 5, it is determined whether or not the sewing range switch 28 shown in FIG. 10 has been touched.
, The amount of movement of the embroidery frame 9 from the center position O of the embroidery pattern 23 to the first vertex (corner) A is calculated.

Next, in step 7, a movement command corresponding to the obtained movement amount is sent to the X, Y drive motor 1
2, and the embroidery frame 9 is moved so that the first vertex A of the embroidery pattern 23 moves from the center position O of the embroidery pattern 23 to the needle lower position.

Next, in step 8, it is determined whether or not the arrow key 32 on the screen 31 has been operated. If the arrow key 32 has been operated, the process proceeds to step 9, where the coordinates of the center position O of the embroidery pattern 23 are determined. (X, y) is updated according to the input of the arrow key 32, and the process proceeds to step 10 shown in FIG. On the other hand, if it is determined in step 8 that no operation has been performed, the process also proceeds to step 10 and
In step, the first vertex A is moved to the needle lower position, and then, in step 11, it is determined whether or not the arrow key 32 has been operated in step 8 to change the sewing position of the selected pattern. If not, the process proceeds to step 12, and in step 12, the embroidery pattern 2
The movement amount of the embroidery frame 9 from the first vertex A to the second vertex B of No. 3 is calculated.

Next, in step 12a, a movement command corresponding to the obtained movement amount is sent to the X, Y drive motors 12, 13, and the second position of the embroidery pattern 23 is set at the needle lower position.
The embroidery frame 9 is moved so that the vertex B is moved from the first vertex A.

Next, in step 13, it is determined whether or not the arrow key 32 has been operated. If the arrow key 32 has been operated, the process proceeds to step 14, where the coordinates (x, x) of the center position O of the embroidery pattern 23 are determined. y) is updated according to the input of the arrow key 32, and the process proceeds to step 15. On the other hand, when it is determined in step 13 that the operation is not performed, the process proceeds to step 15. In step 15, the second vertex B is moved to the needle down position. It is determined whether or not the arrow key 32 has been operated to change the sewing position of the selected pattern. If not, the process proceeds to step 17 shown in FIG.
The movement amount of the embroidery frame 9 from the second vertex B to the third vertex C of the third embroidery is calculated.

Next, at step 17a, a movement command corresponding to the obtained movement amount is sent to the X, Y drive motors 12, 13, and the third position of the embroidery pattern 23 is set at the needle lower position.
The embroidery frame 9 is moved so that the vertex C is moved from the second vertex B.

Next, at step 18, it is determined whether or not the arrow key 32 has been operated. If the arrow key 32 has been operated, the process proceeds to step 19. At step 19, the coordinates (x, x) of the center position O of the embroidery pattern 23 are determined. y) is updated according to the input of the arrow key 32, and the process proceeds to step S20. On the other hand, if it is determined in step 18 that the operation is not performed, the process proceeds to step 20. In step 20, the third vertex C has a movement to the needle down position. It is determined whether or not the arrow key 32 has been operated to change the sewing position of the selected pattern. If the sewing position has not been changed, the process proceeds to step S22. The movement amount of the embroidery frame 9 up to the vertex D is calculated.

Next, at step 22a, a movement command corresponding to the obtained movement amount is sent to the X, Y drive motors 12, 13, and the fourth position of the embroidery pattern 23 is placed at the needle lower position.
The embroidery frame 9 is moved so that the vertex D is moved from the third vertex C.

Next, in step 23, it is determined whether or not the arrow key 32 has been operated. If the arrow key 32 has been operated, the process proceeds to step 24. In step 24, the coordinates (x, x) of the center position O of the embroidery pattern 23 are determined. y) is updated according to the input of the arrow key 32, and the process proceeds to step 25. On the other hand, when it is determined in step 23 that the operation is not performed, the process proceeds to step 25. In step 25, the fourth vertex D is moved to the needle down position. It is determined whether or not the arrow key 32 has been operated to change the sewing position of the selected pattern. If not, the process proceeds to step 27. In step 27, the center position from the fourth vertex D of the embroidery pattern 23 is determined. The amount of movement of the embroidery frame 9 up to O is calculated.

Next, at step 27a, a movement command corresponding to the obtained movement amount is sent to the X and Y drive motors 12, 13, and the center position O of the embroidery pattern 23 is set at the needle lower position. The embroidery frame 9 is moved so as to move from the vertex D of the embroidery.

Next, in step 28, it is determined whether or not the arrow key 32 has been operated. If the arrow key 32 has been operated, the process proceeds to step 29. In step 29, the coordinates (x, x) of the center position O of the embroidery pattern 23 are determined. y) is updated according to the input of the arrow key 32, and the process proceeds to step 30. On the other hand, if it is determined in step 28 that the embroidery pattern 23 has not been operated, the process also proceeds to step 30, in which the center position O of the embroidery pattern 23 moves to the needle down position,
After moving to the center position O, the above flow is terminated.

That is, by the above-described series of flows,
After the pattern is selected and before the selected pattern is sewn, the embroidery pattern moving operation for confirming the sewing range of the selected pattern, that is, the vertex positions A, B, and A of the quadrangular shape defining the appearance of the selected pattern
Embroidery frame 9 is moved to X-position so that C and D are sequentially positioned at the needle lower position.
An operation of moving in the Y direction can be executed.

On the other hand, if the arrow key 32 for changing the sewing position of the selected pattern is operated during the embroidery pattern moving operation, that is, steps 8, 13, 1 in the above flow.
If it is determined in steps 8, 23 and 28 that the arrow key 23 has been operated, the subsequent steps 11, 16, 2
In steps 1 and 26, the flow shifts to the flow shown in FIG.

In the flow chart shown in FIG.
First, in step 31, the movement amount of the embroidery frame 9 from the current position (the reached vertex position) to the center position O of the updated embroidery pattern 23 is calculated. Then, in step 32, the movement amount corresponding to the obtained movement amount is calculated. Is sent to the X and Y drive motors 12 and 13 so that the center position O of the updated embroidery pattern 23 moves from the current position (the reached vertex position) to the needle down position. The embroidery frame 9 is moved.

Next, in step 33, the center position O of the updated embroidery pattern 23 is moved to the needle lower position, and after moving to the center position O, the process returns to step 4 shown in FIG. Is the same as described above.

That is, in this embodiment, when the arrow key 32 for changing the sewing position of the selected pattern is operated during the embroidery pattern moving operation, the embroidery frame moving operation corresponding to the sewing range before the change is performed. Then, the embroidery frame moving operation corresponding to the changed sewing range is executed from the beginning (the needle lower position is changed, and the changed positions O to D become O → The embroidery frame 9 is moved so as to be positioned in the order of A → B → C → D → O), so that the conventional waiting loss time can be omitted and the sewing efficiency can be improved.

In the screen 25 after the selection of the embroidery pattern and before the editing shown in FIG. 8, and the editing screen 29 shown in FIG. 9, the same sewing range switch 28 as above is displayed. When the user touches 28, the sewing range of the selected pattern 23 corresponding to the state displayed on the screens 25 and 29 is changed to the embroidery frame moving operation (the positions O to D are O → A → B at the needle lower position). The operation of moving the embroidery frame 9 so as to be positioned in the order of → C → D → O). If the screen is switched to the screen 31 and the arrow key 32 is operated on the screen 31 during the embroidery frame moving operation by touching the sewing range switch 28, the embroidery frame moving operation before the change is completed, as described above. The embroidery frame moving operation corresponding to the changed sewing range is executed from the beginning without waiting.

Although the invention made by the inventor has been specifically described based on the embodiment, the invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the invention. Needless to say, for example, in the above-described embodiment, the sewing range is moved in a square shape including the pattern. However, the present invention is not limited to this. In another polygonal shape or the pattern itself is moved. May be. Also, the embroidery frame moving operation corresponding to the sewing range after the change is executed from the beginning, and the execution moving order is the position after the change (O → A → B → C → D → O). From the next vertex, that is, in the middle of B → C, the position in the middle → C → the position after the change (O → D → A →
B → C → O), or immediately in the middle of B → C, the operation is stopped immediately, and the stop position → the changed position (O → A)
→ B → C → D → O). in this way,
The embroidery frame moving operation may be started from any of the changed positions as long as it is a continuous movement of the changed positions A to D.

[0048]

As described above, in the shape sewing machine of the present invention, the signal for changing the sewing position of the selected pattern is input during the movement of the workpiece holding frame for confirming the sewing range of the selected pattern. When this is done, the sewing object holding frame moving operation corresponding to the sewing area after the change is executed from the beginning without waiting for the sewing object holding frame moving operation before the change to be completed, and the conventional waiting loss time is omitted. Since it is configured so that sewing can be performed, it is possible to improve sewing efficiency.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a shape sewing machine according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a control system in the embodiment.

FIG. 3 is a flowchart showing a procedure for moving a workpiece holding frame.

FIG. 4 is a flowchart showing an operation procedure following FIG. 3;

FIG. 5 is a flowchart showing an operation procedure following FIG. 4;

FIG. 6 is a flowchart showing an operation procedure when the sewing position of the selected pattern is changed during the movement of the workpiece holding frame.

FIG. 7 is an explanatory diagram showing a pattern selection screen of a display unit.

FIG. 8 is an explanatory diagram showing a screen after a pattern is selected on a display means and before editing.

FIG. 9 is an explanatory diagram showing an editing screen of a display unit.

FIG. 10 is an explanatory diagram showing a screen when a position / rotation touch switch is pressed on the editing screen of the display means.

[Explanation of symbols]

 Reference Signs List 4 display means 9 sewing object holding frame 12 X drive motor 13 Y drive motor 15 control means 24 pattern selection switch 28 sewing range switch 32 sewing position change switch A, B, C, D

Claims (3)

[Claims] 1. A shape sewing machine for performing a moving operation of a sewing object holding frame for confirming a sewing range of the selected pattern after the pattern is selected and before sewing the selected pattern. Means for generating a signal for changing the sewing position of the selected pattern by an operation, and control for calculating the movement of the workpiece holding frame corresponding to the changed sewing range when this signal is input, and executing the movement again. Means for sewing the shape of the sewing machine. When a signal for changing the sewing position of the selected pattern is input, the control means performs a movement of the workpiece holding frame corresponding to the sewing range before the change, and a next movement for defining the sewing range. 2. The shape stitch sewing machine according to claim 1, wherein the sewing machine is caused to continue to a predetermined point, and thereafter, the sewing object holding frame moving operation corresponding to the changed sewing range is executed from the beginning. 3. When a signal for changing the sewing position of the selected pattern is input, the control means immediately stops the moving operation of the workpiece holding frame corresponding to the sewing range before the change, and thereafter, the sewing range after the change. 2. The sewing machine according to claim 1, wherein the sewing object holding frame moving operation corresponding to the step (c) is executed from the beginning.