JPH10235060A - Sewing machine control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the wrong set other than the proof rotating speed of a sewing machine by a user by providing a limiting means for limiting the set range of rotating speed to the rotating speed of the sewing machine set by a setting means. SOLUTION: The set of each rotating speed of a sewing machine 5 is performed by a setting means built in a sewing machine control device 25, for example, a push-button switch 21 and a display means 22. When two buttons of the push-button switch 21 are continuously pressed for several seconds at the same time, the rotating speed set mode of the sewing machine 5 is judged by a microcomputer 20, and each set item of the sewing machine 5 is displayed on the display means 22 according to the push-button switch 21 operated by a user. Each function button of the push-button switch 21 is operated to select the item of rotating speed for the state of the sewing machine 5 to be set, and the other button is operated to set the rotating speed. To set the limitation of the set range, required three push buttons are continuously pressed for several seconds at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a sewing machine control device, and more particularly, to a setting capable of limiting the rotation speed of a sewing machine.

[0002]

2. Description of the Related Art A conventional sewing machine control device is disclosed in
According to the technology disclosed in Japanese Patent Application Publication No. 286, the data of the number of revolutions corresponding to the model of the sewing machine is stored in the storage unit, and the data for each model stored in the storage unit is stored by the model selection signal output from the model selection unit. There is a type in which data is read and input to speed control means to control the rotation speed of the sewing machine at a rotation speed corresponding to each model.

According to such a sewing machine control device, the number of revolutions suitable for the model of the sewing machine can be easily set, and a single control device can control a plurality of types of sewing machines.

[0004]

As described above, since the conventional control device is configured, the setting range of the rotational speed in each state of the sewing machine is predetermined, and the user erroneously exceeds the guaranteed rotational speed of the sewing machine. There is a problem that the sewing machine is broken by setting the rotation speed of the sewing machine, or the sewing speed cannot be set well because the rotation speed is set too low.

The present invention provides a sewing machine control device for preventing a user from erroneously setting a rotation speed outside the guaranteed rotation speed of the sewing machine.

[0006]

According to a first aspect of the present invention, there is provided a sewing machine control device, comprising: control means for controlling operation of the sewing machine; setting means for setting a set value for the operation of the sewing machine; and rotation of the sewing machine. Storage means for storing a set value including speed data, and display means for displaying a set value for the operation of the sewing machine, wherein the setting means and the rotation speed of the sewing machine set by the display means And limiting means for limiting the setting range of the rotation speed.

[0007] A sewing machine control device according to a second aspect of the present invention includes a setting means and a prohibiting means for prohibiting a transition to a setting mode which is not released to the user, for various setting modes set by the display means. It is characterized by having.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a block diagram showing a configuration of one embodiment of the present invention. In FIG. 1, 20 is a microcomputer, 21 is setting means for setting a set value for the sewing machine operation, for example, a push button switch, 22 is a display means for displaying the set value for the sewing machine operation, and 23 is a display means for displaying the set value for the sewing machine operation. Storage means for storing the set value; storage means 23;
, Rotational speed and function setting data corresponding to the model of the sewing machine, 25 is a sewing machine control device, and 26 is a pedal device.

FIG. 2 shows in detail a push button switch 21 for setting a set value for the sewing machine operation and a display means 22 for displaying the set value for the sewing machine operation, which are built in the sewing machine controller 25. FIG.

Next, a method of setting the setting range for the setting of the rotational speed of each state of the sewing machine 5 will be described. The setting of each rotation speed of the sewing machine 5 is performed by setting means, for example, a push button switch 21 and a display means 22 built in the sewing machine control device 25 of FIG. For example, if f and g of the push button switch 21 are continuously pressed for several seconds, the microcomputer 20 determines that the rotation speed setting mode of the sewing machine 5 is set.

In this mode, the microcomputer 2
0 indicates each setting item of the sewing machine 5 on the display means 22 according to the push button switch 21 operated by the user. In this state, the user presses f of the push button switch 21,
By operating g, the item of the rotation speed of the state of the sewing machine 5 to be set is selected while looking at the display means 22, and a, b, c, and d of the push button switch 21 are operated to obtain the numerical value to be set.

For example, when the rotation speed of the sewing machine 5 at a high speed is 40
When setting to 00 s / min, the push button switch 21 is operated as described above to set the rotation speed setting mode of the sewing machine. Then, the top one of the five-digit display means 22
In the state where "H." is displayed as shown in FIG. 3 using the switches f and g for the digits, the switches a, b, c and d are operated to display the lower four digits of the display means 22 as shown in FIG. Display "4000". The microcomputer 20 controls the rotation speed of the sewing machine according to the rotation speed of the sewing machine 5 set as described above.

Further, for setting the rotation speed in each state of the sewing machine 5 described above, a setting (rotation speed limiter) for limiting the setting range is performed in the same manner as in the above-described setting of the rotation speed. Push button switch 21 and display means 22
Done by For example, f,
When g and d are simultaneously pressed for several seconds, the microcomputer 20 determines that the rotation speed limiter setting mode of the sewing machine 5 is set.

In this mode, the microcomputer 2
0 indicates each setting item of the sewing machine 5 on the display means 22 according to the push button switch 21 operated by the user. In this state, the user presses f of the push button switch 21,
By operating g, the item of the rotation speed limiter of the state of the sewing machine 5 to be set is selected while looking at the display means 22, and the c and d of the push button switch 21 are operated to obtain the numerical value to be set.

For example, when setting the maximum value (upper limit) and the minimum value (lower limit) of the setting range of the rotation speed of the sewing machine 5 at a high speed to 2000 s / min and 100 s / min, first, as described above, the push button is used. The switch 21 is operated to set the rotation limiter setting mode of the sewing machine 5. Then, "LHH." Is displayed on the upper three digits of the five-digit display means 22 using the switches f and g as shown in FIG. 5, and the setting item of the maximum value of the rotation speed limiter at high speed is selected.

In this state, the switches c and d are operated to display "20" (display unit is 100 s / min) on the lower two digits of the display means 22 as shown in FIG.
Set to s / min. Similarly, the minimum value (lower limit) of the setting range of the rotation speed is displayed as “LHL.” As shown in FIG. 7 by using the switches f and g, the setting item of the minimum value is selected, and the switches c and d are set. Operate as "01" as shown in FIG.
(The display unit is 100 s / min), and the lower limit is set to 100 s / min. FIG. 9 is a block diagram showing a setting range of the rotation speed setting when the rotation speed limiter at the time of high speed is set as described above.
By setting the lower limit to 100 s / min and the lower limit to 100 s / min, the rotation speed of the sewing machine 5 at high speed is 100 to 200.
This indicates that the value can be set in the range of 0 s / min.

In the above description, the case of the rotation speed at the time of high speed has been described. Similarly, the setting of the rotation speed of each state of the sewing machine 5 at the time of low speed, thread trimming, etc. Can be set freely.

FIG. 10 is a flowchart when the upper limit and the lower limit of the rotation speed setting range are set in the rotation speed limiter setting mode. As shown in FIG. 10, the upper limit value (MAX) and the lower limit value (MIN) of the rotation speed setting range set in the rotation speed limiter setting mode are compared with the current setting value set in the rotation speed setting mode. Each time, the current setting value is the upper limit value (MAX) and the lower limit value (MI
N), the current set value is valid as it is, and if it is larger than the upper limit value (MAX) and smaller than the lower limit value (MIN), the lower limit value (MIN) is substituted for the current set value.

By performing the rotation speed limiter processing as described above, it is not possible to set the rotation speed above the upper limit and below the lower limit of the rotation speed setting range set by the rotation speed limiter setting mode. Further, FIG. 10 shows a configuration in which when the current set value is larger than the upper limit value (MAX), the configuration returns to the lower limit value (MIN). However, as shown in FIG. MAX)
The upper limit value (MAX) may be substituted for the current setting value so that the setting value higher than the upper limit value cannot be set.

Embodiment 2 Next, a setting mode shift prohibition setting according to an embodiment of the present invention will be described. The setting is performed by setting means built in the sewing machine control device 25 of FIG.
For example, it is performed by the push button switch 21 and the display unit 22. For example, f, g of the push button switch 21,
When a and b are simultaneously pressed for several seconds, the microcomputer 20 determines that the setting mode shift prohibition mode of the sewing machine control device is set. In this mode, the microcomputer 20 operates the push button switch 21 operated by the user.
, The item of the setting mode whose transition is to be prohibited is displayed on the display means 22.

In this state, the user presses the push button switch 2
By operating f and g of 1 and selecting the item of the setting mode in which the transition is to be prohibited while viewing the display means 22, the user operates the d of the push button switch 21 to set whether or not the transition is prohibited. For example, it is assumed that the mode shifts to the setting mode A when the g and a of the push button switch 21 are simultaneously pressed for several seconds.

When it is desired to prohibit the transition to the setting mode A, first, as described above, the push button switch 21 is operated to enter the setting mode transition prohibition mode. Then, "A." is displayed on the upper one digit of the five-digit display means 22 using the switches f and g as shown in FIG. 12, and the item of the setting mode in which the shift is to be prohibited is selected.

In this state, when the transition is prohibited, the d of the push button switch 21 is operated to display "ON" in the lower two digits of the five-digit display device 22 as shown in FIG. If not, "OF" is displayed as shown in FIG. 14, and a setting is made as to whether or not to inhibit the mode transition.

FIG. 15 is a flowchart showing the transition of the setting mode when the setting of whether the mode transition is prohibited or not is performed in this manner. As shown in FIG. 15, the shift to the setting mode is performed by operating the push button switch 21. At the time when the push button switch 21 is operated, it is determined whether or not the mode shift inhibition is set. If prohibition is set, the mode does not shift to the setting mode even if the push button switch 21 is operated, and if prohibition is not set, the mode shifts to the setting mode.

Further, in the description of each embodiment of the sewing machine control apparatus, as an embodiment of the setting means for setting the set value for the sewing machine operation and the display means for displaying the set value, a configuration built in the sewing machine control apparatus. Although an example has been described, a configuration may be provided externally as a setting display connected to the sewing machine control device.

[0026]

As described above, according to the sewing machine control device of the first invention, the setting range for the setting of the rotational speed in each state of the sewing machine is determined in advance as in the conventional control device. The upper and lower limits of the setting range can be set freely without any delay, and the configuration is such that it is not possible to set the number of rotations above or below the lower limit of the setting range of the number of rotations. It is possible to prevent a problem that a user mistakenly sets a rotation speed equal to or higher than the guaranteed rotation speed of the sewing machine and breaks the sewing machine, or sets a rotation speed that is too low and does not perform sewing well.

According to the sewing machine control device of the second invention, in addition to the effect of the first invention, it is possible to perform a setting for prohibiting a transition to a setting mode for performing various settings for defining the operation of the sewing machine. Therefore, it is possible to prevent the user from performing an erroneous switch operation and shifting to the setting mode not released to the user. Further, since it is possible to freely set whether to prohibit or not to shift to the setting mode, it is possible to easily set whether to release each setting mode to the user for various setting modes.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a sewing machine control device according to an embodiment of the present invention.

FIG. 2 is a diagram showing in detail a push button switch and a display unit incorporated in the sewing machine control device according to one embodiment of the present invention.

FIG. 3 is a diagram showing a display example on a display means of the sewing machine control device according to one embodiment of the present invention.

FIG. 4 is a diagram showing a display example on the display means of the sewing machine control device according to one embodiment of the present invention.

FIG. 5 is a diagram showing a display example on the display means of the sewing machine control device according to one embodiment of the present invention.

FIG. 6 is a diagram showing a display example on the display means of the sewing machine control device according to one embodiment of the present invention.

FIG. 7 is a diagram showing a display example on the display means of the sewing machine control device according to one embodiment of the present invention.

FIG. 8 is a diagram showing a display example on the display means of the sewing machine control device according to one embodiment of the present invention.

FIG. 9 is a block diagram showing one embodiment of the present invention.

FIG. 10 is a diagram showing a flowchart of an embodiment of the present invention.

FIG. 11 is a diagram showing a flowchart of an embodiment of the present invention.

FIG. 12 is a diagram showing a display example on the display means of the sewing machine control device according to one embodiment of the present invention.

FIG. 13 is a diagram showing a display example on the display means of the sewing machine control device according to one embodiment of the present invention.

FIG. 14 is a diagram showing a display example on the display means of the sewing machine control device according to one embodiment of the present invention.

FIG. 15 is a diagram showing a flowchart of an embodiment of the present invention.

[Explanation of symbols]

2 Setting device, 5 sewing machine, 6 sewing machine pulley, 7 needle position detecting mechanism, 8 sewing machine drive motor, 9 motor pulley, 10 motor speed detector, 11 belt, 13
Presser lifting device, 14 solenoid drive device, 20 microcomputer, 21 push button switch, 22
Display device, 23 storage means, 24 rotation speed and function setting data corresponding to the model of the sewing machine, 25 sewing machine control device, 26 pedal device.

Claims (2)

[Claims] A control means for controlling an operation of the sewing machine; a setting means for setting a set value for the operation of the sewing machine; a storage means for storing a set value including rotation speed data of the sewing machine; Display means for displaying a set value for the operation of the sewing machine, for the rotation speed of the sewing machine set by the setting means and the display means, limiting means for limiting the setting range of the rotation speed, A sewing machine control device comprising: 2. A system according to claim 1, further comprising a prohibition unit configured to prohibit a transition to a setting mode that is not released to a user for various setting modes set by the setting unit and the display unit. 2. The sewing machine control device according to 1.