JPH08299632A - Embroidering device with start permission function - Google Patents

Abstract

PURPOSE: To prevent an accident that a fabric or a needle mechanism is broken at the time of a start by moving a holding means of an embroidery object by the shift quantity of the embroidery object corresponding to the pattern data in response to the detected phase of a needle in an embroidering device utilizing the sewing mechanism of a sewing machine. CONSTITUTION: An embroidering device is fitted to a sewing machine main body, linear sewing is selected by a pattern selecting dial, and a feed dog is set below a throat plate. When a power source is tuned on, the drive of a stepping motor driving device 20 is prohibited by a start permission device 12. When it is judged that a needle is located above a fabric by the prescribed distance based on the signal from a phase detecting sensor 18 and a fabric presser mechanism 53 is located at the upper position based on the signal from a fabric presser mechanism position detecting sensor 30, the start permission signal is outputted to a central arithmetic processor 10 from a start permission device 12. Am embroidery frame 19 is moved by X, Y motors 21, 22 via the stepping motor driving device 20, and embroidering is started.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery sewing device having a start permission function.

[0002]

2. Description of the Related Art Sewing machines equipped with a motor for driving a sewing mechanism by an electric motor have been widely used, and a device for performing embroidery sewing using the sewing mechanism of a sewing machine equipped with such a motor is known. Applicant of the present application, Sho 57-2
No. 4305. According to this embroidery sewing device, a sewing machine that can be easily embroidered by connecting to an existing sewing machine can be configured, and the embroidery sewing can be easily performed without purchasing a new sewing machine having an embroidery sewing function. There is an advantage that can be done.

[0003]

However, in the above-mentioned embroidery sewing device, it is necessary to position the embroidery frame at a predetermined origin (home position) at the time of starting, and the operation at the time of starting is performed by the needle of the sewing machine. It is necessary to perform the operation with the needle raised, and if the embroidery frame is moved with the needle lowered, the cloth or the sewing machine needle mechanism may be damaged. Therefore, in the above-mentioned conventional embroidery sewing device, it is necessary for the operator to confirm the state of the sewing machine and then press the start button of the embroidery sewing device, which is a heavy burden on the operator. The present invention aims to solve the above-mentioned problems of the prior art.

[0004]

In order to achieve the above-mentioned object, an embroidery sewing machine provided with a start permission function of the present invention is an embroidery machine that utilizes the sewing mechanism of a sewing machine. Means for holding the embroidery object for sewing, means for giving pattern data regarding the pattern to be embroidered, means for detecting the phase of the sewing operation of the needle of the sewing mechanism of the sewing machine, A means for moving the holding means by a movement amount corresponding to the pattern data corresponding to the detected phase of the needle from the detecting means, and a means for detecting the phase A means for determining whether or not the means for moving can be started based on the detection signal from the device, and a means for enabling the means for moving based on the determination. And this feature. The means for moving the holding means is actuatable by the means for activatable. The means for enabling the start determines whether the means for moving the needle corresponding to the detected phase of the needle can be started, and if the needle is moving downward, start the means for moving. Not possible, but only when the needle is above. Therefore, there is no risk of damaging the cloth or the needle mechanism. In addition to the above, a means for detecting the vertical position of the cloth retainer of the sewing machine of the sewing machine is added in addition to the above because there is a risk of damage even if the holding means is moved with the cloth retainer lowered. It is desirable to further include In this case, the means for starting determines whether or not the means for moving can be started based on the vertical position detection signal of the cloth retainer in addition to the phase detection signal of the needle. Further, it is desirable that the moving means moves the holding means to a predetermined origin position when the starting means enables the starting means. With this configuration, the means for holding the origin position as a reference can be accurately moved and controlled. Further, it is desirable to further include means for notifying the operator of the result of the determination when the means for enabling the startup determines that the startup is impossible. As a means for making this notification, it is possible to perform visual display by a display device or a sound notification by a voice device. In response to this notice, the operator raises the sewing machine needle and cloth retainer upwards,
It can be in a startable state.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the pattern data assigning means 1 assigns pattern data corresponding to a pattern (figure, character, symbol, etc.) to be embroidered. The pattern data giving means 1 is usually a storage device such as a ROM or a RAM. The control means 2 controls the driving means 3 according to the pattern data, and the driving means 3 is connected to a holding means 4 such as an embroidery frame for holding the cloth or the like to be embroidered. The holding means 4 is configured to move in the XY directions according to the control signal from the control means 2. The holding means 4 is installed so that a stitch is formed by a sewing machine needle mechanism 51 of an existing sewing machine. The pattern corresponding to the pattern data given from the pattern data giving means 1 is displayed on the display means 7. The phase detecting means 5 is attached to an appropriate place near the sewing machine needle mechanism 51 (for example, the cloth pressing mechanism 53), and is configured to detect the vertical position of the sewing machine needle mechanism 51. Further, a pressing position detecting means 6 for detecting the vertical position of the cloth pressing mechanism 53 is also provided at an appropriate position so that the pressing position of the cloth pressing mechanism 53 is detected. The control means 2 is further configured to control the sewing machine motor device 50 on the sewing machine side, and is configured to stop, start, and control the speed of the sewing machine motor device 50. The sewing machine motor device 50 is an existing device provided on the sewing machine side, and is composed of a motor, a device for driving and controlling the motor, and the like.

The start permitting means 8 is for enabling the control means 2 to be started. The control means 2 cannot drive the driving means 3 unless a start permitting signal is output from the start permitting means 8 to the control means 2. It has become. At the time of starting the embroidery device, a start non-permission signal is output from the start permitting means 8 to the control means 2, the drive means 3 is not driven at the time of starting, and the holding means 4 is in a stopped state. Detection signals from the phase detection means 5 and the cloth pressing position detection means 6 are input to the start permission means 8, and the sewing needle mechanism 51 is raised upward in the start permission means 8 and the holding means 4 is held.
When the state of being separated from the cloth held at is detected, and when the state that the cloth pressing mechanism 53 is also raised and is separated from the cloth is detected, a start permission signal is output to the control means 2. . The degree to which the sewing machine needle mechanism 51 is raised can be appropriately determined, and for example, the state where the sewing machine needle mechanism 51 is raised a predetermined distance from the cloth can be set as the detection position.

When a command to start the embroidery device is issued, the start permitting means 8 causes the sewing machine needle mechanism 51 to move upward and the cloth pressing mechanism 53 to move upward in response to signals from the phase detecting means 5 and the cloth pressing position detecting means 6. When it is detected that
A start permission signal is output to the control means 2. At other times, a start disapproval signal is output. When the disapproval signal is output, the control means 2 displays a message to that effect on the display means 7 to inform the operator of the sewing machine needle mechanism 51 and the work clamp mechanism 5.
It prompts you to raise 3. Control means 2
When the starting permission signal is output from the starting permission means 8, the driving means 3 is controlled to position the holding means 4 at the origin position (home position), and then the pattern data given by the pattern data giving means 1 is changed. Based on this, the control means 2 is controlled to move the holding means 4 in the XY directions to perform embroidery sewing. When the holding means 4 is moved, the phase of the sewing machine needle mechanism 51 is detected from the phase detection means 5 and is moved when the needle is raised.

An example of the structure of the pattern data supplied from the pattern data adding means 1 is shown in FIG. This pattern data includes XY control data for moving the holding means 4 in the XY directions and display data for displaying on the display means 7. The end data is provided after the last data. The control means 2 drives the holding means 4 based on the XY control data from the pattern data giving means 1. At this time, according to the signal from the phase detection means 5, when the needle of the sewing machine needle mechanism 51 is raised, the holding means 4 is moved at a timing. At the same time, the control means 2 pre-reads the pattern data, outputs a deceleration signal of the sewing machine speed to the sewing machine motor device 50 before a predetermined number of stitches of the end data, and outputs a stop signal of the sewing machine before the predetermined number of stitches. It is adapted to output to the device 50. After the stop signal is output, the sewing machine stops after performing a predetermined number of stitches due to the inertia of the motor. With the above configuration, it becomes possible to automatically stop the sewing machine motor device 50 when the pattern sewing based on the pattern data is completed.

The control means 2 also controls the speed of the sewing machine motor device 50 in accordance with the XY control data, so that the speed of the sewing machine motor device 50 is changed between a small portion and a large portion of the XY movement amount. Is configured to control.

FIG. 3 is a specific block diagram of the embroidery sewing device X, and FIG. 4 is an external perspective view of the sewing machine A mounted on the sewing machine A.
FIG. 5 is an external perspective view showing a state in which the sewing machine is detached from the sewing machine.
The embroidery sewing device X is provided with a holding portion 25 for holding the free arm of the sewing machine A, and is fixed by a holding knob 26. As shown in FIG. 4, the embroidery frame 19 has X-
It is supported by the Y drive mechanism 24 and is configured to move in the XY directions. The embroidery frame 19 is configured to be set below the sewing machine needle mechanism 51 of the existing sewing machine A, and embroidery stitching is performed by sandwiching a cloth here and moving it in XY. The phase detection sensor 18 is provided in the vicinity of the sewing machine needle mechanism 51.
Is detected, that is, the position of the sewing needle is detected and input to the central processing unit 10, and the embroidery frame 19 is moved when the sewing needle is raised. A photo sensor or the like can be used as the phase detection sensor 18,
This signal is sent to the central processing unit 10, and the central processing unit 10 controls the X motor 21 and the Y motor 22 via the stepping motor drive unit 20 to move the embroidery frame 19 in the XY directions. Has been done. Further, a cloth pressing mechanism position detection sensor 30 for detecting the vertical position of the cloth pressing mechanism 53 is also provided, and it is detected that the cloth pressing mechanism 53 has been raised to an upper position and input to the central processing unit 10. Is configured to. Similarly, a photo sensor or the like can be used for the cloth pressing mechanism position detection sensor 30. Reference numeral 54 is a pattern selection dial, and 55 is a drop lever.

The pattern data storage device 11 stores the pattern data. In this embodiment, the pattern data of a plurality of patterns is stored, and the pattern selecting device 14 allows the user to select an arbitrary pattern. . The pattern data of the pattern selected by the user is stored in the selected pattern storage device 13,
Based on the stored pattern data, the central processing unit 10 is configured to control the stepping motor driving device 20 to control the embroidery frame 19 in the XY directions.
The embroidery sewing device X is provided with a display device 17, which displays a pattern on the basis of the pattern data stored in the pattern data storage device 11 and the display data of the pattern data of the selected pattern, and displays the pattern to the user. It is configured so as to show a typical pattern shape. The pattern selection device 14 is provided beside the display device 17, and the user can select a desired pattern while looking at the display device 17.

The start permitting device 12 temporarily inhibits the operation of the stepping motor driving device 20 when the power is turned on, then determines whether or not the embroidery sewing device X is in a startable state, and determines whether to permit or disallow starting. It is a device for doing.
The start permitting device 12 determines whether or not the start is possible based on the detection signals of the phase detection sensor 18 and the work clamp mechanism position detection sensor 30 input to the central processing unit 10, and the sewing machine needle mechanism 51 and the work clamp are held. The mechanisms 53 are both raised and detect a predetermined state in which the cloth held by the embroidery frame 19 is not in contact, and output a start permission signal to the central processing unit 10. On the contrary, when either the sewing machine needle mechanism 51 or the cloth pressing mechanism 53 is lowered downward, and the needle is stuck in the cloth or the cloth presser is in contact with the cloth, the central processing unit 10 A start disapproval signal is output. When the start-up is not permitted, the central processing unit 10 displays a message to that effect on the display device 17, and the operator operates the sewing machine A to raise the sewing machine needle mechanism 51 and the work clamp mechanism 53 upward. It is designed to encourage you. Also, in the case of start permission,
The embroidery frame 19 is moved to a predetermined origin position (home position) via the stepping motor drive device 20, and then a predetermined embroidery sewing is executed.

The central processing unit 10 is connected to the controller connection terminal 52 of the sewing machine A via a drive signal transmission device 23 such as a cable, and as described above, starts, stops and speeds the sewing machine motor device 50 on the sewing machine side. Is controlled from the embroidery sewing device X side. A start / stop / speed command device 16 is provided on the side of the display device 17 described above, and the sewing machine motor device 50 is instructed by the user.
You can start, stop, and adjust its speed. The vertical phase of the sewing machine needle mechanism 51 due to the driving of the sewing machine motor device 50 is detected by the phase detection sensor 18 as described above, and the stepping motor driving device 20 according to the driving timing of the sewing machine motor device 50.
Is controlled to move the embroidery frame 19.
Therefore, when the sewing machine motor device 50 is stopped, the embroidery frame 19 is also stopped.

The central processing unit 10 pre-reads the pattern data stored in the selected pattern storage unit 13, and pre-reads the end data as shown in FIG. 2 to store the sewing machine drive stop / speed control program. Based on a program stored in the device 15, the sewing machine motor device 50 is decelerated from before the predetermined stitch, and a stop signal is output between the predetermined stitches to stop the sewing machine motor device 50. Further, the speed of the sewing machine motor device 50 is automatically adjusted according to the amount of movement in the XY directions corresponding to the stitches of the pattern, and is also stored in the sewing machine drive stop / speed control program storage device 15. The speed is automatically adjusted based on the program.

Next, the operation will be described with reference to FIG. First, the embroidery sewing device X is attached to the sewing machine A main body as shown in FIG. 4, and the drive signal transmission device 23 is connected to the controller connection terminal 52.
Connect to. Further, the embroidery frame 19 is set below the sewing machine needle mechanism 51. The sewing machine A has a pattern selection dial 54.
The straight stitch is selected by and the feed dog is set below the needle plate by the drop lever 55. When the attachment of the embroidery sewing device X is completed and the power of the embroidery sewing device X is turned on (step S1), the start permitting device 12 prohibits the driving of the stepping motor drive device 20, and the X motor 2 is operated.
1 and the Y motor 22 are stopped (step S2).
Then, the start permitting device 12 determines from the signal from the phase detection sensor 18 whether or not the sewing machine needle is above a predetermined distance from the cloth (step S3), and if not, sends a start disapproval signal to the central processing unit 10. Output. Central processing unit 1
In response to this, 0 displays a message on the display device 17 (step S4) and prompts the operator to raise the needle. When it is detected that the sewing machine needle is at the position above the cloth by the needle raising operation, it is next determined whether the cloth pressing mechanism 53 is at the upper position by the signal from the cloth pressing mechanism position detection sensor 30. If not (step S5), the start non-permission signal is output to the central processing unit 10. Central processing unit 1
In response to this, 0 displays a message on the display device 17 (step S6), and prompts the operator to raise the work clamp mechanism 53. When the operator lifts the cloth pressing mechanism 53, this is detected by the cloth pressing mechanism position detection sensor 30, and the start permission device 12 outputs a start permission signal to the central processing unit 10 (step S7). The central processing unit 10 controls the stepping motor drive unit 20 to move the embroidery frame 19 to the origin position (step S8) and start embroidery. The central processing unit 10 displays all the patterns stored in the pattern data storage device 11 on the display device 17 (step S9), and the user selects a pattern based on the display device 17 (step S10). And the user starts / stops /
When the speed command device 16 is pressed (step S11), the central processing unit 10 controls the sewing machine motor device 50 via the drive signal transmission device 23 to start the sewing machine (step S12), and outputs the signal from the phase detection sensor 18 to the sewing machine. Check (step S13), when the needle is raised,
Read out the XY control data of the pattern data (step S
14) Based on the control data, the X motor 21 and the Y motor 22 are drive-controlled via the stepping motor drive device 20 to move the embroidery frame 19 in the XY directions (step S15). When the end of the pattern data is approaching (step S
16) After setting the sewing machine motor device 50 to operate at low speed, a stop signal for the sewing machine motor device 50 is output to stop the sewing machine motor device 50 (step S1).
7).

In the embodiment described above, the embroidering frame 19 is moved until the start mode is entered by the start permitting device 12 and the sewing machine needle mechanism 51 and the cloth pressing mechanism 53 are raised. Since it is not present, it is possible to prevent an accident that damages the cloth, the sewing machine needle mechanism 51, or the like. Further, the operator can instruct to start the embroidery sewing device X regardless of the state of the sewing machine A, and according to the display of the display device 17, the sewing machine needle mechanism 51 and the work clamp mechanism 5 of the sewing machine A.
It is sufficient to operate 3 and there is an effect that operability is improved.

[0017]

As described above, the embroidery sewing device having the starting permission function of the present invention can prevent the accident of damaging the cloth or the sewing machine needle mechanism at the time of starting. Also,
Since the operator does not need to check the state of the sewing machine side at the time of starting, the operability is improved.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a structure of pattern data according to an embodiment of the present invention.

FIG. 3 is a block diagram showing a specific configuration of an embodiment of the present invention.

FIG. 4 is an external perspective view of an embodiment of the present invention.

FIG. 5 is an external perspective view of an embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the embodiment of the present invention.

[Explanation of symbols]

1: pattern data giving means, 2: control means, 3: driving means, 4: holding means, 5: phase detecting means, 6: cloth pressing position detecting means, 7: display means, 8: start permitting means, 10: center Arithmetic processing device, 11: pattern data storage device, 12: start permission device, 13: selected pattern storage device, 14: pattern selection device, 15: sewing machine drive stop / speed control program storage device, 16: start / stop / speed command Device, 17: display device, 18: phase detection sensor, 19: embroidery frame, 20: stepping motor drive device, 21: X motor, 22: Y motor, 23: drive signal transmission device, 24: XY drive mechanism, 25: holding part, 26: holding knob, 30: cloth pressing mechanism position detection sensor, 50: sewing machine motor device, 51: sewing machine needle mechanism, 52: controller connecting terminal, 53: cloth pressing mechanism, 54: pattern selection Dial, 55: drop lever.

Front page continuation (72) Haruhi Tanaka, inventor, 1463, Sakuma-cho, Hachioji, Tokyo Metropolitan area, Jamome Machine Industry Co., Ltd. Within the corporation

Claims (4)

[Claims] 1. In an embroidery sewing device utilizing a sewing mechanism of a sewing machine, a means for holding an embroidery object for performing embroidery sewing by the sewing mechanism of the sewing machine, and providing pattern data regarding a pattern to be embroidered. Means, a means for detecting the phase of the sewing operation of the needle of the sewing mechanism of the sewing machine, and a movement amount corresponding to the pattern data corresponding to the detected phase of the needle from the detecting means. , Means for moving the means for holding, and based on a detection signal from the means for detecting the phase, it is determined whether or not the means for moving can be started,
An embroidery sewing device having a start permission function, comprising: a means for starting the moving means based on the determination. 2. A means for detecting the vertical position of the cloth presser of the sewing machine is further provided, and the means for starting the sewing machine further includes the detection signal from the means for detecting the phase in addition to the vertical direction. The embroidery sewing device with a start permission function according to claim 1, wherein it is determined whether or not the means for moving can be started based on a detection signal from the means for detecting the position. 3. The holding means is moved to a predetermined origin position when the means for moving is made startable by the means for making it startable. Embroidery sewing machine with a start permission function. 4. The means for making the start possible further comprises means for notifying an operator of the result of the judgment when it is judged that the means for moving cannot be started. An embroidery sewing device having the start permission function described in 2 or 3.