KR100447570B1 - Method of indication rpm of automatic embroidery apparatus and apparatus of thereof - Google Patents

Abstract

The present invention relates to a method and a device for displaying an automatic embroidery machine (RPM), the rotational speed of the current spindle (RPM) only while the user presses a shortcut key when the embroidery machine is paused before or during operation. Provides a function of displaying the set value to the monitor display for a predetermined time. RPM display method of the automatic embroidery machine according to the present invention for this purpose, the user inputs and stores the maximum rotation speed setting value of the main shaft; The user inputting and storing a rotation speed setting value of the main shaft according to the embroidery design; Executing a embroidery operation by the user inputting data for embroidery design and embroidery; And displaying a rotation speed (RPM) setting value of the current main shaft on the monitor display unit when the user presses a shortcut key when the embroidery machine is stopped before or during operation.

Description

Method for displaying ALPM of automatic embroidery machine and its device {METHOD OF INDICATION RPM OF AUTOMATIC EMBROIDERY APPARATUS AND APPARATUS OF THEREOF}

The present invention relates to a method for displaying a revolution per minute (RPM) of an automatic embroidery machine, and a device therefor, and in particular, to set the rotational speed (RPM) of the current spindle by a shortcut key when the embroidery machine is stopped before or during operation. The present invention relates to an RPM display method and an apparatus of an automatic embroidery machine for displaying a value on a monitor display unit.

In general, the embroidery machine refers to a mechanism that the user sets the desired number while the needle frame that can sew while moving up and down, the frame fixed to the fabric moves in the X-axis and Y-axis direction.

In general, sewing machines mainly used in homes are structured to sew and feed fabrics using a serrated feeder, while embroidery machines are configured to embroider while the frame fixing the fabric is transferred in the X and Y directions.

The embroidery machine includes a single head type automatic embroidery machine, a multi head type automatic embroidery machine, a special embroidery machine, and the like.

The embroidery machine is composed of a head part that is largely responsible for sewing, and an X, Y transfer mechanism for controlling the movement of the frame by controlling the X-axis pulse motor and the Y-axis pulse motor with the embroidery machine controller according to data input to a predetermined memory. .

The embroidery machine usually has 12 to 24 heads connected to one axis, and each head has 6 to 12 needle bars, and each needle bar is different because the embroidery operation must be performed with different colors of threads according to the embroidery design. Colored thread is attached.

In recent years, users are demanding embroidery machines for convenient input, copying, saving, and simple editing of embroidery designs, and the automatic thread changing function and the thread cutting automatically after sewing is finished. Automated embroidery machines with functions such as a function to stop the embroidery machine when the thread is broken and to notify that the thread is broken, and a power failure recovery function that allows the machine to continue working when the embroidery machine is stopped due to a power failure Doing.

In order to meet the needs of users who prefer such multifunctional embroidery machines, companies producing and selling embroidery machines employ industrial computers or microcomputers for the embroidery machines.

Then, the configuration and operation of the multi-head automatic embroidery machine according to the prior art with reference to the accompanying drawings will be described.

1 is a perspective view of a conventional general automatic embroidery machine.

As shown, the conventional automatic embroidery machine has a body 112 formed long left and right. The frame 114 which can move to the front, back, left and right in a state of supporting the fabric for embroidering on the body 112 is installed. The frame 114 is moved by the first pulse motor 116 provided at one end of the body 112 and the second pulse motor 118 provided near the rear left and right centers.

A plurality of heads 120 for raising and lowering the needle above the frame 114 are arranged long left and right at regular intervals. The head 120 is driven by the main shaft motor 124 that drives the main shaft 122. The seal guide 126 for guiding the seal is provided above the head 120, and a driver box 128, a power box 130, a controller box 132, and the like are installed below the frame 114. Selection operation panel 134 for data input, embroidery design selection, etc. required near the upper end, the lower body 112 is provided with a power switch 138.

That is, when the necessary items are input and selected through the operation panel 134 and the power switch 138 is turned on, the main shaft is rotated by the main shaft motor 124, and the head 120 raises and lowers the needle. . At the same time, the frame 114 is moved left, right, that is, in the X-axis direction by the first pulse motor 116, and is moved forward, backward, that is, in the Y-axis direction, by the second pulse motor 118. At this time, the driving of the first and second pulse motors 116 and 118 is operated by separate control means built in the controller box 132 according to the embroidery data corresponding to the selected design.

Figure 2 is a schematic block diagram of an automatic embroidery machine according to the prior art.

As shown, the conventional automatic embroidery machine includes a function setting unit 210, a control unit 220, a mechanism unit 230, a setting data storage unit 240, and an embroidery design storage unit 250.

Here, the function setting unit 210 is provided with a function selection key for setting various functions.

The mechanism unit 230 drives a mechanism for embroidery and other embroidery according to the control signal of the controller 220.

The setting data storage unit 240 stores various setting data (parameter information for mechanism operation; embroidery speed, needle bar selection information, etc.) for embroidery progress, and is built in or external to the controller 220.

The embroidery design storage unit 250 stores the information of the embroidery design, and like the setting data storage unit 240 is embedded or external to the control unit 220.

The controller 220 includes a memory in which a program for controlling the operation of the embroidery machine is stored to control the overall operation of the embroidery machine.

If the thread breaks during the embroidery operation, the controller 220 controls the mechanism 230 to stop the frame driving and stops the driving of the various mechanisms.

In addition, the control unit 220 stores the setting data storage unit 240 and the embroidery design information for storing various setting data (parameter information for the mechanism operation; embroidery speed, needle bar selection information, etc.) for the embroidery progress is stored Embroidery design storage unit 250 has an interior or exterior form. 2 illustrates an embodiment of an external form, and the controller 220 may be configured as a microcomputer.

The conventional automatic embroidery machine when the user selects a desired design from the embroidery designs stored in the embroidery design storage unit 250 by using the function setting key of the function setting unit 210, the control unit 220 accordingly the mechanism The control unit 230 controls the embroidery operation.

On the other hand, if the thread is broken during the embroidery operation is detected by the thread break detection unit (not shown) to inform that the thread break occurs in the control unit 220, the control unit 220 is attached to the head broken thread When the flickering of the lamp or the buzzer is configured, a simple buzzer sound informs the user of the thread break, and controls the mechanism unit 230 to stop the frame driving.

Therefore, the user recognizes that the thread is broken, finds the needle bar of which the thread is broken, inserts the thread, and proceeds to work again.

Next, Figure 3 is a diagram for explaining the stroke of the needle bar for operating the embroidery machine needle, Figure 4 is a graph showing the speed change of the pulse motor associated with the stroke of FIG.

When the top dead center of the needle bar operating the needle in FIG. 3 is set to 0 °, one stroke is 360 °, and at 100 °, the needle penetrates the fabric fixed by the frame, and at 260 °, the needle is moved from the fabric. Departure. That is, the upper section from 260 ° from which the needle leaves the fabric to the top dead center and then 100 ° from which the needle penetrates the fabric again corresponds to an area where the needle can move out of the fabric and the frame moves. The lower section between 100 ° and 260 °, where the needle leaves again, corresponds to the section where the needle is stuck in the fabric and the frame cannot move. 3 is identical to one stroke of the spindle motor for driving the needle through the needle bar. Of course, not in the same stroke as in all embroidery streams, the needle is plugged into the fabric, the angle of departure can be changed.

The rotational speed change of the pulse motor corresponding to the stroke as shown in FIG. 5 can be seen from FIG. 6. In other words, the pulse motor for moving the frame is accelerated at 260 ° when the needle leaves the fabric, and when it reaches the top dead center, it decelerates again and the operation stops at 100 ° when the needle passes through the fabric. Then, the pulse motor stops operation until the needle leaves the fabric and then accelerates again at 260 ° when the needle leaves the fabric and repeats the previous process.

That is, the hatched section between the top dead center 0 ° and the needle 100 ° penetrating the fabric is a deceleration synchronous phase angle region. In addition, 260 ° from which the needle leaves the fabric is the acceleration start phase angle.

At this time, the acceleration start time, the deceleration time and the acceleration time after deceleration of the pulse motor may be changed according to the characteristics of the motor or the type of embroidery airflow. For example, it may be driven by starting acceleration at 0 °, which is the top dead center, accelerating to 50 °, decelerating from 50 °, and stopping at 100 °.

Conventional automatic embroidery machines are usually operated at 500 to 1000 RPM, and the time to transfer the frame in one stroke is (60 seconds / operation RPM) x (200 ° / 360 °). That is, when the rotation speed of the embroidery machine is 750 RPM, the time to transfer the frame in one stroke is (60 seconds / 750 RPM) × (200 ° / 360 °) = 0.04444 seconds, and the stop time of the frame is (60 seconds / 750 RPM) x (160 ° / 360 °) = 0.03556 seconds.

This automatic embroidery machine has a lot of work to fill letters or pictures in a certain area of the fabric due to the nature of the work, unlike the general sewing work that the fabric continues in one direction, the setin stitch that reciprocates As it occupies most of the frame, the frame reciprocates by repeating the transfer and stop time of the very short frame calculated above.

The moving speed of the frame corresponding to the pulse motor speed is indicated by a dotted line in FIG. 5. As can be seen in Figure 5, the speed of the frame follows the rotational speed of the pulse motor at predetermined time intervals, but the timing of the belt, pulse motor, frame, etc. Due to play and elasticity, the frame has a large velocity in the direction of travel due to inertia. As a result, the frame is excessively over the break point.

In other words, when the needle passes through the fabric, the frame is out of position due to the inertia of the frame, resulting in a drop in quality of embroidery. Of course, even when the progression in the same direction because the frame is out of position due to inertia adversely affects the embroidery quality.

In addition, especially for large embroidery, the weight of the frame is increased to increase the weight of the frame or the spindle motor, that is, the load of the pulse motor increases in proportion to the rotation speed of the needle, for example, 1000 RPM or more. In addition, as the rotational speed increases, the frame transfer time is shortened, so that the frame speed is further increased and the stop time is shortened, thereby increasing the inertia of the frame. Of course, when the weight of the frame is increased, the time is not shortened, but the inertia increases, so the frame has to exceed the point where the frame should be stopped.

As a result, the frame driving requires more square power in proportion to the speed of the frame. This will be further described with reference to FIG. 6.

6 is a graph showing a change in speed of the frame corresponding to the pulse motor when the rotational speed of the main shaft motor is increased than in FIGS. 4 and 5.

That is, the graphs shown in FIGS. 4 and 5 are the speeds when driving the spindle motor at 750 RPM, and the rotational speed of the spindle motor is increased to 1000 RPM under the assumption that the feeding distance of the pulse motor is the same during one stroke. In order to achieve this, the acceleration speed and the deceleration speed of the pulse motor, and thus the acceleration speed and the deceleration speed of the frame, change rapidly as shown in FIG. When the spindle motor, that is, the needle rotation speed is 1000 RPM, the time frame can move is (60 seconds / 1000 RPM) × (200 ° / 360 °) = 0.03333 seconds, and the time that frame should be stopped is (60 seconds / 1000 RPM) x (160 ° / 360 °) = 0.02667 seconds. In order to move the frame at the same distance as the rotational speed of 750 RPM during this short time, the pulse motor must be accelerated and decelerated much faster than the previous example, so that the inertia acting on the frame becomes larger.

The area between the time axis and the speed line of the pulse motor is the distance at which the frame should be moved. The feeding distance of the pulse motor at 1000 RPM, that is, the moving distance of the frame, is shown at a rotational speed of 750 RPM as shown in FIG. 5. In order to be equal to the distance, as shown in FIG. 6, the slope of the rotational speed change of the pulse motor and the speed change of the frame becomes very steep. As a result, the frame has a speed well past the point where it has to stop. This reduces the quality of embroidery.

As described above, the automatic embroidery machine should match the rotational speed of the main shaft and the moving speed of the frame according to the embroidery design. That is, the rotational speed of the main shaft should not be faster or slower than the moving speed of the frame, and conversely, the moving speed of the frame should not be faster or slower than the rotational speed of the main shaft. Therefore, it is essential for the user who uses the embroidery machine to check the rotational speed of the main shaft of the embroidery machine before the embroidery machine is operated or when the embroidery machine is to be paused or the embroidery design is changed during the embroidery operation. .

However, in the conventional automatic embroidery machine to find out the rotational speed setting value of the main shaft before or after the embroidery machine is operated, the program currently displayed on the monitor by the operation of the input key through the function setting unit 210. After the operation, the rotation speed of the spindle saved in the memory (not shown) had to be recalled. Therefore, the conventional automatic embroidery machine has the inconvenience that the user must press the input key several times, and after checking the rotation speed setting value of the spindle through the screen of the monitor, there is the inconvenience of returning to the previous screen again. .

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to monitor the rotational speed (RPM) setting value of the current main shaft by a shortcut key during a pause before or during the embroidery machine operation. It is to provide an RPM display method and an apparatus of an automatic embroidery machine shown in.

1 is a perspective view of a general automatic embroidery machine

Figure 2 is a schematic block diagram of an automatic embroidery machine according to the prior art

3 is a diagram for explaining the stroke of the needle bar for operating the embroidery machine needle

4 is a graph showing a change in speed of a pulse motor associated with the stroke of FIG.

5 is a graph showing the speed change of the frame corresponding to the pulse motor speed

6 is a graph showing the change in speed of the frame corresponding to the pulse motor when the rotational speed of the main shaft motor is increased than in FIGS. 4 and 5.

Figure 7 is a block diagram showing an RPM display device of the automatic embroidery machine according to the present invention

8 is a flowchart illustrating a method of inputting an RPM value in the RPM display method of the automatic embroidery machine according to the present invention.

9 is a flow chart showing a method of outputting the RPM value in the RPM display method of the automatic embroidery machine according to the present invention

<Explanation of symbols for the main parts of the drawings>

310: function setting unit 320: shortcut for displaying RPM value

330: RPM value adjustment key 340: RPM detection unit

350: memory 360: mechanism part

370: monitor display unit 380: setting data storage unit

390: embroidery design storage unit 400: control unit

RPM display method of the automatic embroidery machine according to the present invention for achieving the above object,

A user inputting and storing a maximum rotation speed setting value of the main shaft;

The user inputting and storing a rotation speed setting value of the main shaft according to the embroidery design;

Executing a embroidery operation by the user inputting data for embroidery design and embroidery; And

And displaying a rotation speed (RPM) setting value of the current main shaft when the user presses a shortcut key before the embroidery machine operates or during a pause during the operation.

The rotation speed setting value of the main shaft displayed on the monitor display unit is displayed only while the user presses the shortcut key.

The rotation speed setting value of the main shaft displayed on the monitor display unit is displayed only for a predetermined time after the user presses a shortcut key.

RPM display device of the automatic embroidery machine for achieving the above object,

A function setting unit for setting and inputting various functions of the embroidery machine;

A shortcut key for displaying an RPM value that the user presses to determine a preset rotation speed (RPM) setting value of the main spindle before or during operation of the embroidery machine;

RPM value adjustment key for adjusting when setting the rotational speed (RPM) setting value of the main shaft;

A memory for storing a program for controlling the operation of the embroidery machine and a rotation speed (RPM) setting value of the spindle;

A monitor display unit for displaying a rotational speed (RPM) setting value of the main shaft during operation of the embroidery machine or by input of the shortcut key for displaying the RPM value; And

A control unit for controlling the operation of the respective portions, and controlling the display unit to display a current rotational speed (RPM) setting value of the current main shaft stored in the memory storage unit by inputting the RPM value display shortcut key; It is characterized by including.

The rotational speed (RPM) setting value of the main shaft shown in the monitor display unit is characterized in that it appears only during the time that the user presses the shortcut key for displaying the RPM value.

The rotational speed (RPM) setting value of the main shaft shown in the monitor display unit is characterized in that it appears only for a predetermined time after the user presses the RPM value display hot key.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings of the present invention, the same reference numerals are used for the same configurations and names as the conventional drawings.

For reference, Figure 7 is a block diagram showing the RPM display device of the automatic embroidery machine according to the present invention.

RPM display device of the automatic embroidery machine according to the present invention, as shown, the function setting unit 310, PRM value display shortcut key 320, RPM value adjustment key 330, RPM detection unit 340, memory 350 , A mechanism unit 360, a monitor display unit 370, a setting data storage unit 380, an embroidery design storage unit 390, and a control unit 400.

Here, the function setting unit 310 is provided with a function selection key for setting various functions.

The shortcut key 320 for displaying the RPM value is pressed by the user to find out the rotation speed setting value of the main shaft before the embroidery machine is operated, or the rotation speed (RPM) setting value of the current spindle when the operation is paused. Key. The rotation speed (RPM) setting value of the current main axis is displayed on the monitor display unit 370 while the user presses the shortcut key 320 for displaying the RPM value. Alternatively, after the user presses the shortcut key 320 for displaying the RPM value, the rotation speed (RPM) setting value of the current main shaft is displayed on the monitor display unit 370 only for a predetermined time.

The shortcut key 320 for displaying the RPM value is configured to be included in the function setting unit 310.

The RPM value adjusting key 330 is a key for adjusting the RPM value when setting the RPM value. The RPM value adjusting key 330 is also included in the function setting unit 310 is configured.

The memory 350 is built in or external to the controller 400 and stores a program and RPM setting values necessary for controlling the operation of the embroidery machine.

The mechanism unit 360 drives the frame and other embroidery mechanisms under the control of the controller 400.

The monitor display unit 370 shows the RPM value under the control of the control unit 400. The monitor display unit 370 displays the current rotational speed (RPM) setting value of the present spindle only for a predetermined time while the user presses or shortens the key when the embroidery machine is paused before or during the operation. .

The setting data storage unit 380 stores various setting data (parameter information for mechanism operation; embroidery speed, needle bar selection information, etc.) for embroidery progress, and is built in or external to the control unit 400.

The embroidery design storage unit 390 stores the embroidery design information, and like the setting data storage unit 380 is embedded or external to the control unit 400.

The controller 400 has a memory in which a program for controlling the operation of the embroidery machine is stored to control the overall operation of the embroidery machine.

In addition, when the thread is broken during the embroidery operation, the controller 400 controls the mechanism unit 360 by the signal detected to stop the frame driving.

In addition, when the shortcut key 320 for displaying the RPM value is input, the controller 400 displays the RPM setting value stored in the memory 350 on the monitor display unit 370.

In addition, the control unit 400 is a setting data storage unit 380 for storing a variety of setting data (parameter information for the mechanism operation; embroidery speed, needle bar selection information, etc.) for the embroidery progress and embroidery design information is stored Embroidery design storage unit 390 has an internal or external form. 7 illustrates an embodiment of the external form, the control unit 400 may be configured as a microcomputer.

The automatic embroidery machine of the present invention uses the function setting key of the function setting unit 310 when the user selects a desired design from the embroidery designs stored in the embroidery design storage unit 390, and the control unit 400 accordingly. The mechanism 360 is controlled to execute the embroidery operation.

On the other hand, if the thread is broken during the embroidery operation is detected by the thread break detection unit (not shown) to inform that the thread break occurs in the control unit 400, the control unit 400 is attached to the head broken thread When the flickering of the lamp or the buzzer is configured, a simple buzzer sound informs the user of the thread break, and the mechanism unit 360 is controlled to stop the frame driving.

In addition, when the user presses the RPM value display hot key 320 to find out the set RPM before operating the embroidery machine, or to find out the current RPM when the embroidery machine is in operation, the current spindle The rotation speed (RPM) setting value is shown on the monitor display unit 370.

The rotation speed (RPM) setting value of the main shaft displayed on the monitor display unit 370 is the same as the rotation speed (RPM) setting value of the main shaft stored in the memory 350, but the rotation speed (RPA) setting value is changed by embroidery. It may change.

Then, with reference to the accompanying drawings Figures 8 and 9 will be described how to input and output the RPM value in the RPM display method of the automatic embroidery machine according to the present invention.

First, a method of inputting an RPM value in the RPM display method of the automatic embroidery machine according to the present invention will be described with reference to FIG. 8.

Since the maximum rotation speed of the needle varies depending on the machine type, the embroidery machine sets the rotational speed (RPM) setting value of the largest spindle before starting embroidery (step S100). At present, the rotational speed (RPM) of the main spindle of the embroidery machine is about 1200 RPM.

Then, if the rotational speed (RPM) setting value of the maximum spindle of the embroidery machine is set, it is determined whether to set the rotational speed (RPM) setting value of the spindle corresponding to the selected embroidery design (step S110), and then the rotational speed (RPM) of the spindle The set value is set (step S120).

If the rotation speed (RPM) setting value of the main shaft is not set in step S110, the embroidery machine goes to step S140 to operate at the currently set value.

The rotation speed (RPM) set value of the main shaft set in the step (S110) is stored in the memory 350 (step S130), the embroidery machine operates by the stored value (step S140).

Next, a method of outputting the RPM value in the RPM display method of the automatic embroidery machine according to the present invention with reference to FIG.

If the user inputs the RPM value display hot key 320 to determine the current RPM's rotation speed (RPM) setting value before driving the embroidery machine or during a pause during operation (step S200), The controller 400 retrieves a rotation speed (RPM) setting value of the main shaft stored in the memory 350 (step S210).

Thereafter, the monitor display unit 370 displays the rotational speed (RPM) setting value of the spindle loaded from the memory 350. At this time, the rotation speed (RPM) setting value of the main shaft displayed on the monitor display unit 370 is displayed only during the time the user presses the shortcut key 320 for displaying the RPM value. Alternatively, the rotation speed (RPM) setting value of the main shaft displayed on the monitor display unit 370 is displayed only for a predetermined time after the user presses the shortcut key 320 for displaying the RPM value.

Preferred embodiments of the present invention as described above are disclosed for purposes of illustration, and those skilled in the art will be able to make various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and changes belong to the following claims Should be seen.

As described above, the RPM display method and the device of the automatic embroidery machine according to the present invention, if pressing the hot key during the pause before or during the operation of the embroidery machine to determine the current rotation speed (RPM) setting value of the main spindle It has a convenient function to display on the monitor display for a while. Therefore, the user who uses the embroidery machine can always check the current rotation speed (RPM) setting value of the main spindle through the monitor display unit when the embroidery machine is in operation. The current rotation speed (RPM) setting value of the main axis can be easily checked by a shortcut key.

Claims (6)

A user inputting and storing a maximum rotation speed value of the main shaft; The user inputting and storing a rotation speed setting value of the main shaft according to the embroidery design; Executing a embroidery operation by the user inputting data for embroidery design and embroidery; And If the user presses a shortcut key before the embroidery machine is in operation or during a pause during the operation, displaying the rotation speed (RPM) setting value of the currently set main spindle on the monitor display unit. How to display RPM. The method of claim 1, RPM setting method of the automatic embroidery machine, characterized in that the rotation speed setting value of the main shaft displayed on the monitor display unit is displayed only while the user is pressing the shortcut key. The method of claim 1, RPM setting method of the automatic embroidery machine, characterized in that the rotation speed setting value of the main shaft displayed on the monitor display unit is displayed only for a predetermined time after the user presses the shortcut key. In the RPM (rotation speed) display device of the automatic embroidery machine, A function setting unit for setting and inputting various functions of the embroidery machine; A shortcut key for displaying a rotation speed setting value pressed by a user to find out a rotation speed setting value of a preset spindle before or during the operation of the embroidery machine; A rotation speed setting value adjusting key for adjusting when setting the rotation speed setting value of the main shaft; A memory for storing a program for controlling the operation of the embroidery machine and a rotation speed setting value of the spindle; A monitor display unit for displaying the rotation speed setting value of the main shaft during operation of the embroidery machine or by input of the shortcut key for displaying the rotation speed setting value; And A control unit for controlling the operation of the respective portions, and controlling the display unit to display the rotation speed setting value of the current main shaft stored in the memory storage unit by inputting the rotation speed setting value display shortcut key. RPM display device of the automatic embroidery machine, characterized in that the. The method of claim 4, wherein RPM setting device of the automatic embroidery machine, characterized in that the rotation speed setting value of the main shaft shown in the monitor display portion appears only during the time the user presses the shortcut key for displaying the rotation speed setting value. The method of claim 4, wherein RPM setting device of the automatic embroidery machine, characterized in that the rotation speed setting value of the main shaft shown in the monitor display portion appears only for a predetermined time after the user presses the shortcut key for displaying the rotation speed setting value.