JP4707220B2 - Embroidery sewing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an embroidery sewing machine.
[0002]
[Prior art]
In an embroidery sewing machine, a cloth or the like as an embroidery object is fixed to an embroidery frame, and the embroidery frame is moved in the XY directions to perform embroidery sewing.
The embroidery frame is driven by a moving mechanism mounted inside the sewing machine main body or on the bed, and moves so as to protrude from the sewing machine main body in the XY direction.
In addition, embroidery sewing in an embroidery sewing machine often takes time, and it is usually possible to temporarily stop and start embroidery sewing again.
[0003]
[Problems to be solved by the invention]
However, if the embroidery frame is temporarily stopped while projecting from the main body, the embroidery frame is stopped with a large area occupied, and the danger of collision with the embroidery frame increases. In order to store the embroidery frame, it is necessary to switch from the embroidery mode to the normal sewing mode once, so that an operation of 3 steps to 10 steps or more is necessary, and the embroidery frame is often temporarily stopped with the embroidery frame protruding.
Further, in recent years, a sewing machine has been developed that can increase the range of movement of the embroidery frame so that large embroidery can be performed, and the present invention is desired to solve the problem by stopping the embroidery frame while it is overhanging. The aim is to solve technical problems.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, an embroidery sewing machine according to the present invention includes a sewing execution means for performing sewing by moving a needle up and down, an embroidery object, a means for holding the embroidery object, and the holding means. An embroidery sewing machine comprising: means for moving the means with respect to the sewing execution means; an operating means for retracting the holding means to a predetermined position; and when the operating means is operated, the embroidery at that time Means for storing the position of the means for holding the object; means for causing the sewing execution means to perform anti-sewing when the operation means is operated; and when the operation means is operated, Child controls the means for the movement after the stitch, the said means for holding is retracted only in the Y direction, and means for projecting length in the Y direction to retract to the shortest position, the said means for storing Record In position, characterized by comprising a means for resuming the embroidering by moving means for the holding.
In the above configuration, if the operating means for retracting is operated, the means held by the means for retracting is retracted, and the holding means is not left in a protruding state in the case of a temporary stop or the like. .
The operating means for retreating may be realized in the form of a touch panel of a display device, for example. Further, the retracting direction is retracted only in the depth direction (Y direction) of the sewing machine. When the evacuation is performed only in the depth direction (Y direction) and not performed in the X direction, the evacuation operation is fast, and when the embroidery is resumed, the original position can be quickly restored. When an operation for evacuation is performed, the position of the holding means at that time is stored, and the sewing execution means is struck and stopped before the evacuation operation. With this configuration, the holding means can be surely returned to the original position when the embroidery is resumed, and the embroidery can be smoothly resumed without causing a stitch misalignment or the like.
Further, a means for setting the sewing machine to an economy mode for saving power consumption may be provided, and the economy mode may be set together with the retreat when the operation means for retreating is operated.
The means for detecting that the sewing machine has not been operated for a predetermined time and the means for moving are controlled to retract the holding means to a predetermined position when the detecting means detects non-operation for a predetermined time. And a means for setting the sewing machine to an economy mode that saves power consumption when non-operating for a predetermined time is detected by the detecting means. It is also possible to configure to automatically save and shift to economy mode by stopping.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the sewing machine of the present invention includes an arm machine frame 1 and a base 2, and an XY moving mechanism (not shown) is provided inside the base 2.
A tip carriage 7 that moves in conjunction with the XY moving mechanism extends to the outside of the base 2, and an embroidery frame 3 is attached to the tip. The arm machine frame 1 is provided with a needle bar 70 and a needle 71 which are stitch formation mechanisms 62.
[0006]
The embroidery frame 3 is attached with a cloth as an embroidery object, moved in the XY direction by the movement of the tip carriage 7 in the XY direction, and embroidery stitched by the vertical movement of the needle bar 70 and the needle 71. Has been. This embroidery sewing can be selected by a sewing mode selection button 54. When embroidery sewing is not performed, the normal sewing mode is set, and the needle bar 70 and the needle 71 are moved up and down and a feeding device (not shown). Normal sewing is executed by the cloth feed.
Reference numeral 57 denotes a start / stop button for starting and stopping the sewing machine.
[0007]
The XY moving mechanism 67 in the base 2 can be moved in the X direction (the width direction of the sewing machine) and the Y direction (the depth direction of the sewing machine) by the XY motor driving device 65 and the XY motor 66.
[0008]
FIG. 2 is a block diagram showing a hardware configuration, and this embodiment will be described in detail in conjunction with FIG.
The CPU 50 controls the sewing machine in accordance with a program stored in the program storage device 51. During normal sewing, the CPU 50 controls the sewing machine motor drive circuit 60 at a speed instructed by a rotational speed command device 53 that is a speed controller such as a stepping type. The sewing machine 61 is controlled to rotate, and the stitch formation mechanism 62 is driven at a sewing speed corresponding to the indicated speed.
[0009]
As shown in FIG. 1, the stitch formation mechanism 62 includes a needle bar 70, a needle 71, and a cloth feed mechanism (not shown), and executes predetermined sewing. The number of rotations of the sewing machine motor 61 is detected by a motor rotation detection sensor 63 and fed back to the CPU 50 for use in speed control.
[0010]
The embroidery sewing machine includes an XY motor driving circuit 65, an XY motor 66, and the XY moving mechanism 67 described above in addition to the sewing machine motor driving circuit 60, and executes pattern sewing based on the pattern data from the stitch data storage device 30. It is like that. As described above, the XY moving mechanism 67 includes the tip carriage 7 shown in FIG. 1. A cloth is attached to the embroidery frame 3 attached to the tip, and the cloth is moved in the XY direction to execute embroidery sewing. It is like that. In FIG. 1, the width direction of the sewing machine body is X and the depth direction is Y.
[0011]
The timing signal generator 64 detects the rotational phase of the upper shaft of the sewing machine main body, detects the vertical movement of the needle 71, and generates a signal. This signal is used for timing of driving in the XY directions by the XY motor driving circuit 65. The CPU 50 inputs the timing signal and controls the XY motor driving circuit 65.
[0012]
The above-described embroidery sewing and normal sewing are performed by operating the sewing mode selection button 54. The sewing mode selection button 54 is provided as a touch panel in a display device 56 provided on the front portion of the arm machine frame 1 as shown in FIG.
As shown in FIG. 2, the display device 56 further performs various displays in accordance with commands from the CPU 50 by the display control device 55.
Further, 31 is a temporary storage device, and 52 is a switch for turning on / off the power of the entire sewing machine.
[0013]
In the above configuration, the embroidery frame storage key 4 is provided on the display device 56 as a touch panel. When the embroidery frame storage key 4 is operated, the CPU 50 stores the position of the embroidery frame 3 in the temporary storage device 31 and controls the XY movement mechanism 67 by a program from the retraction operation program storage device 10 to control the leading end carriage 7. The embroidery frame 3 is retracted to a predetermined position.
[0014]
In this embodiment, it is retracted only in the Y direction and retracted to a position where the overhang length in the Y direction is the shortest. When the evacuation is not performed in the X direction, the return to the original position is quick when embroidery is resumed.
[0015]
In this embodiment, the anti-skid sewing operation program storage device 11 is further provided. Before the embroidery frame 3 is retracted by the operation of the embroidery frame storage key 4, the CPU 50 controls the stitch forming mechanism 62 so Stop stitching is executed, and then the embroidery frame 3 is retracted.
By retracting after performing such anti-raising stitches, there is an effect that the embroidery sewing can be smoothly resumed without causing a stitch misalignment or the like when the embroidery sewing is resumed next time.
[0016]
Further, in this embodiment, a power saving mode program storage device 12 is provided so that when the embroidery frame storage key 4 is operated, the sewing machine is set to a power saving operation mode after the embroidery frame 3 is retracted, so that power can be saved. It is configured.
[0017]
A timer 42 is further connected to the CPU 50. When the CPU 50 recognizes the stop of the stitch forming mechanism 62 and the stop of the XY moving mechanism 67, it issues a time measurement command to the timer 42 and measures the elapse of a predetermined time. It is like that.
The tip carriage 7 and the embroidery frame 3 are also retracted to a predetermined position even when the predetermined time elapses. Moreover, it is comprised so that a fray stopper sewing and a power saving operation may be performed.
[0018]
In order to resume the embroidery sewing after the embroidery frame 3 is retracted, the start / stop button 57 is operated. When this operation is performed, the CPU 50 reads the position of the embroidery frame 3 before being saved stored in the temporary storage device 31 and controls the XY movement mechanism 67 to return the embroidery frame 3 to the original position. The embroidery sewing is configured to resume.
[0019]
The operation will be described with reference to FIGS.
In FIG. 3, when the embroidery frame storage key 4 is operated (step S1), the CPU 50 executes anti-fray sewing (step S2), and controls the XY moving mechanism 67 to retract the embroidery frame 3 and the leading carriage 7. Move to position (step S3). When the evacuation operation is completed (step S4), the mode is switched to the power saving mode (step S5).
[0020]
In FIG. 4, when the timer 42 stops the operation of the sewing machine for a predetermined time (step S10), the CPU 50 executes anti-fray sewing (step S11) and controls the XY moving mechanism 67 to control the embroidery frame 3 and the leading carriage. 7 is moved to the retracted position (step S12). When the evacuation operation ends (step S13), the mode is switched to the power saving mode (step S14).
[0021]
【The invention's effect】
As described above, according to the embroidery sewing machine of the present invention, since the means for holding the embroidery object such as the embroidery frame can be easily retracted, there is an effect that damage due to collision can be suppressed.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing an embodiment of the present invention.
FIG. 2 is a functional block diagram of an embodiment of the present invention.
FIG. 3 is a flowchart showing the operation of one embodiment of the present invention.
FIG. 4 is a flowchart showing the operation of one embodiment of the present invention.
[Explanation of symbols]
1: arm machine frame, 2: base, 3: embroidery frame, 4: embroidery frame storage key, 7: tip carriage, 10: retraction operation program storage device, 11: anti-fray sewing operation program storage device, 12: power saving Mode program storage device, 30: stitch data storage device, 31: temporary storage device, 42: timer, 50: CPU, 51: program storage device, 52: power switch, 53: rotational speed command device, 54: sewing mode selection button 55: Display control device, 56: Display device, 57: Start / stop button, 60: Sewing motor drive device, 61: Sewing motor, 62: Stitch formation mechanism, 63: Motor rotation detection sensor, 64: Timing signal generation Device: 65: XY motor driving circuit, 66: XY motor, 67: XY moving mechanism, 70: needle bar, 71: needle.

Claims (4)

Sewing execution means for executing sewing by moving the needle up and down;
An embroidery object and means for holding the embroidery object;
An embroidery sewing machine comprising: means for moving the holding means in the X direction and the depth direction (Y direction) with respect to the sewing execution means;
Operating means for retracting the holding means to a predetermined position;
Means for storing the position of the means for holding the embroidery object when the operation means is operated;
Means for causing the sewing execution means to perform fraying prevention sewing when the operation means is operated;
When the operation means is operated, the means for moving is controlled after the anti-fray sewing, and the holding means is retracted only in the Y direction and retracted to a position where the overhang length in the Y direction is the shortest. Means for
Means for resuming embroidery sewing by moving the holding means to the position stored in the storing means;
An embroidery sewing machine characterized by comprising When there is an operation of the operating means for retracting,
In addition, means to make the sewing machine an economy mode to save power consumption,
The embroidery sewing machine according to claim 1, comprising: Sewing execution means for executing sewing by moving the needle up and down;
An embroidery object and means for holding the embroidery object;
An embroidery sewing machine comprising: means for moving the holding means relative to the sewing execution means;
Means for detecting that the sewing machine has not been operated for a predetermined time;
Means for storing the position of the means for holding the embroidery object when the non-operation for a predetermined time is detected by the detecting means;
Means for causing the stitching execution means to perform fraying prevention sewing when non-operating for a predetermined time is detected by the detecting means;
When the non-operation for a predetermined time is detected by the detecting means, the moving means is controlled so that the holding means is retracted only in the Y direction and retracted to the position where the overhang length in the Y direction is the shortest. Means for
Means for resuming embroidery sewing by moving the holding means to the position stored in the storing means;
An embroidery sewing machine characterized by comprising Means for setting the sewing machine in an economy mode to save power consumption when non-operation for a predetermined time is detected by the detecting means;
The embroidery sewing machine according to claim 3, further comprising:

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