JP2007125444A - Restorable embroidery sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a conventional embroidery sewing machine cannot start the embroidery from an intermitted position at a restart because of the machine's reset and therefore cannot intermit the work through the power source-off when a power source is made off to intermit work during embroidering. <P>SOLUTION: The embroidery sewing machine driven by supply of electric power from the electric source is provided with a means for storing at least an embroidery seam position and a sewing machine state immediately before the intermittence of the power supply and for retaining the position and the state even after the intermittence of the power supply and a means for reading the seam position and the state of the sewing machine retained in the means for retaining and for returning the machine to the retained state at the restart of the power source-on. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an embroidery sewing machine capable of returning to a state.

  In an electric sewing machine, a start / stop switch and a speed controller are provided in addition to a normal power switch, and the sewing machine is started / stopped by this operation.

However, in recent years, sewing machines capable of embroidery stitching have become widespread, and when the power is turned off to interrupt the work during embroidery, a reset is applied and the embroidery sewing work must be resumed from the position where it was interrupted during the restart. It was impossible to interrupt the work by turning off the power.
The present invention aims to remedy the drawbacks of the prior art described above.

In order to achieve the above object, an embroidery sewing machine capable of returning to a state according to the present invention comprises:
An embroidery sewing machine that is driven by power supplied from a power supply, and is a state storage that sequentially stores the stitch positions according to the XY direction positions of the XY movement mechanism, and at least the power supply is Means for storing the stitch position and sewing state of the embroidery stitch immediately before being cut off, and storing the stitch position and state of the embroidery stitch even after the power is cut off, and at the next power-on restart A state-recoverable embroidery machine comprising: means for reading the stitch position and state of the sewing machine embroidery stitch stored in the storage means and returning the sewing machine to the stored state. The problem was solved.
The present invention also provides means for detecting the absence of an operator in the vicinity of the sewing machine,
The present invention solves the problem by further comprising means for turning off the power supply when the absence of the operator is detected for a predetermined time by the means for detecting.
Further, the present invention further comprises means for detecting that the operation of the sewing machine has not been performed for a predetermined time or more, and when detecting that the operation has not been performed for a predetermined time or longer by the means for detecting, The problem has been solved by further comprising means for turning off the power supply.

According to the sewing machine capable of returning the state of the present invention, the state of the sewing machine when the power is turned off can be stored, and the state can be read by reading the state. Therefore, the work can be safely performed by turning off the power. It can be interrupted, and when restarting, it can return to the stitch position and state during storage. Moreover, there is an effect that it is possible to cope with a power-off accident such as a power failure.
In the present invention, the stitch position according to the position of the XY direction of the XY movement mechanism is sequentially stored, and at least the stitch position and the sewing machine of the embroidery stitch immediately before the supply of power is cut off. And storing the stitch position and the state of the embroidery stitch even after the power is cut off, it is possible to return to the accurate final position and Even when it is turned off, it is possible to suspend / resume the work safely. In addition, even if there is an accident such as a power failure or disconnection of the power cord, the state of the sewing machine can be restored, and further, the operation can be interrupted, the power can be turned off, and the sewing machine can be moved.

A state storage in which the seam position according to the position in the XY direction of the XY movement mechanism is sequentially stored, and at least the seam position of the embroidery stitch immediately before the power supply is cut off and the state of the sewing machine are stored. The means for storing the stitch position and state of the embroidery stitch even after the power is cut off, and the stitch of the embroidery stitch of the sewing machine stored in the storing means when the power is turned on again Means for reading the position and state and returning the sewing machine to the stored state, so that the stitch position and the sewing machine state of the embroidery stitch immediately before the power supply is cut off when the power is turned off are provided. When the power is turned on again, the stitch position and state of the sewing machine embroidery stitch stored in the storing means are read and returned.

Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, a central processing unit 1 is mainly composed of a microcomputer and controls the entire sewing machine. That is, the stitch formation mechanism 21 is driven via the sewing machine motor drive circuit 20 in response to a command from the start / stop switch 2 to execute the sewing. A speed controller may be used instead of the start / stop switch 2.
This sewing machine is a sewing machine capable of embroidery sewing, and the central processing unit 1 controls the X direction motor 23 and the Y direction motor 24 via the XY motor drive circuit 22 and controls the XY movement mechanism 25. It is supposed to be. The XY moving mechanism 25 is provided with an embroidery frame that holds an embroidery object such as a cloth, and the embroidery frame is moved in the XY direction to execute embroidery sewing.
Various pattern data are stored in the pattern data storage device 12, and a desired pattern can be selected by the pattern selection button 11 and embroidery sewing can be executed.

The sewing machine is provided with a safety switch 3, and by operating the safety switch 3, the safety mode setting device 4 is operated, and the operation of the sewing machine is prohibited and the safety mode can be set. Yes. This safety mode prevents an operator from receiving an operation command, and does not mean that the power supply or the like is cut off. Then, at least a start command by the start / stop switch 2 is not accepted and the sewing machine is not operated. In addition, in a sewing machine using a controller, a command by an operation of the controller is not accepted. This makes it possible to prohibit the starting of the sewing machine.
As for other functions, the operation may be prohibited as necessary, or a specific function may be operable even in the safety mode.
When the safety switch 3 is operated and turned on, the safety mode setting device 4 sets the safety mode after confirming that the sewing machine is stopped by a signal from the stop detection device 10. When the safety mode is set, the central processing unit 1 displays on the display device 9 via the display control device 8 that the safety mode is set.
Next, when the safety switch 3 is operated and turned off, the safety mode setting device 4 cancels the safety mode, accepts the operation, and enables normal operation.
It should be noted that safety can be improved by making it impossible for a child or the like to easily release the safety mode. For example, the safe mode may be canceled for the first time by operating a plurality of switches or inputting a cipher.

In this embodiment, a state storage device 7 is further provided, and a storage state reading switch 6 operated to cause the central processing unit 1 to read the state stored in the state storage device 7 is provided. When the saved state reading switch 6 is operated, the central processing unit 1 reads the state saved in the state saving device 7 and can return the sewing machine to this state.
As a result, when the power is turned off by the power switch 5, the state immediately before that is stored in the state storage device 7. Next, the power is turned on and stored from the state storage device 7 by the storage state reading switch 6. By reading the state, the sewing machine can be returned to the original state.
The state stored by the state storage device 7 may be any state as required, but typically the XY direction position of the XY movement mechanism 25 driven by the X direction motor 23 and the Y direction motor 24 is used. By saving the embroidery, the embroidery can be interrupted / resumed by turning off the power.

In this embodiment, the state storage device 7 stores the state sequentially. However, the state storage device 7 can be configured to store the state immediately before the power is turned off by operating the power switch 5, for example. It is.
With the above configuration, even if the power is turned off by the power switch 5 and the start / stop switch 2 is operated by the start / stop switch 2, if the power is turned on again by the power switch 5, the sewing machine is returned to the state immediately before the power is turned off. It becomes possible. Therefore, the embroidery can be interrupted by turning off the power switch 5. Furthermore, even if the power cord is disconnected or a power failure occurs, the original state can be restored. Further, there is an advantage that the interrupted work can be resumed after the power cord is disconnected and the sewing machine is moved.

  In the above embodiment, both the configuration for setting the safety mode by the safety switch 3 and the safety mode setting device 4 and the state storage / recovery function by the saving state reading switch 6 and the state saving device 7 are provided. It is also possible to provide one of them, and if either one is provided, the operation can be interrupted in a safe state.

  It is also possible to provide a proximity switch or the like on the sewing machine so that the safety mode setting device 4 is automatically turned on or turned off when the operator confirms that there is no longer than a certain time. Furthermore, it is possible to automatically turn off the safety mode setting device 4 after detecting that the operator has returned. However, in the case of a power supply, it is desirable to manually turn on the power switch 5.

  Further, it is possible to configure that the safety mode setting device 4 is turned on or the power is turned off by detecting that the sewing machine has not been operated for a predetermined time or more, and various other configurations are added. I can do it.

The operation will be described with reference to FIG.
When the power cord is connected and the power switch 5 is turned on (step S1), the central processing unit 1 checks the operation of the storage state reading switch 6 (step S2), and the storage state reading switch 6 is turned on. If it is, the state of the sewing machine at the time of the previous power-off stored in the state storage device 7 is read, and the sewing machine is returned to this state (step S3). Thereby, for example, the XY movement mechanism 25 operates and moves in the XY direction to the state when the power was previously turned off.
Next, when the start / stop switch 2 is turned on (step S4), the central processing unit 1 operates the sewing machine motor drive circuit 20 and the XY motor drive circuit 22 (step S5), and thereafter executes normal operations. Various operation commands are received and processing is performed (step S6). The central processing unit 1 stores and saves the state of the sewing machine in the sequential state storage device 7 (step S7). This operation continues until a stop command is issued by turning off the start / stop switch 2.
If there is a stop command (step S8), it is confirmed whether or not the safety switch 3 is on (step S9). If the safety switch 3 is not on, the process jumps to step S13. If the safety switch 3 is on, the stop of the sewing machine is confirmed by a signal from the stop detection device 10 (step S10), the safety mode is set by the safety mode setting device 4, and an operation command for the start / stop switch 2 or the like is issued. It will not be accepted. The fact that the safety mode has been set is displayed on the display device 9 (step S11).
Next, the central processing unit 1 checks whether or not the safety switch 3 is turned off (step S12), and if it is turned off, checks whether or not the power switch 5 is turned off (step S13). The operation ends when the power is turned off. The state of the sewing machine at this time is stored and saved in the state storage device 7 and is read as necessary when the power is turned on next time.
If the power is not turned off, the process returns to step S4 to wait for the operation of the start / stop switch 2.

According to the embodiment described above, the safety mode can be set by the safety mode setting device 4 by operating the safety switch 3, and at least the operation command of the start / stop switch 2 is not accepted in this safety mode. Cannot be started. Therefore, it becomes possible for the operator to interrupt the work and leave the sewing machine, and when starting the work again, the work can be started from the state at the time of the interruption. Therefore, in the middle of embroidery stitching or the like, the safety mode can be set to interrupt the work.
Further, since the state of the sewing machine is stored by the state storage device 7, even when the power is turned off, the state of the sewing machine at that time can be read and restored by the storage state reading switch 6, so that the power supply by the power switch 5 is turned off. This also makes it possible to safely suspend / resume work. In addition, even if there is an accident such as a power failure or disconnection of the power cord, the state of the sewing machine can be restored, and further, the operation can be interrupted, the power can be turned off, and the sewing machine can be moved.

The functional block diagram which shows one Embodiment of this invention. The flowchart figure which shows operation | movement of one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Central processing unit 2 ... Start / stop switch 3 ... Safety switch 4 ... Safety mode setting device 5 ... Power switch 6 ... Storage state reading switch 7 ... State storage device 8 ... Display control device 9 ... Display device 10 ... Stop detection Device 11 ... Pattern selection button 12 ... Pattern data storage device 13 ... Temporary storage device 20 ... Sewing motor drive circuit 21 ... Stitch formation mechanism 22 ... XY motor drive circuit 23 ... X direction motor 24 ... Y direction motor 25 ... X- Y moving mechanism.

Claims (3)

An embroidery sewing machine that is driven by power supplied from a power source,
The state of storing the stitch positions according to the XY direction positions of the XY movement mechanism in a state of being sequentially stored, and storing at least the stitch position of the embroidery stitch immediately before the power supply is cut off and the state of the sewing machine Means for preserving the stitch position and state of the embroidery stitch after the power is cut off;
Means for reading the stitch position and state of the sewing machine embroidery stitch stored in the storing means and returning the sewing machine to the stored state upon restarting the next power-on;
An embroidery sewing machine capable of returning to a state, characterized by comprising: Means for detecting the absence of an operator in the vicinity of the sewing machine;
Means for turning off the supply of power when the absence of an operator is detected for a predetermined time by the means for detecting;
The embroidery sewing machine according to claim 1, further comprising: Means for detecting that the sewing machine has not been operated for a predetermined time or more;
Means for turning off the supply of power when it is detected by the means for detecting that no operation has been performed for a predetermined time or more;
The embroidery sewing machine according to claim 1, further comprising:

Images