JP2014030544A - Embroidery device and motor-driven sewing machine including the sane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an embroidery device enabling embroidery sewing by using a sewing machine which does not have an embroidery function just by being connected to the sewing machine without need of separate power supply.SOLUTION: An embroidery device 1 of the present invention which is attachable to/detachable from a motor-driven sewing machine 100 having a DC motor 106 as a main shaft drive motor includes: a connector 7 for electrically connecting with the motor-driven sewing machine 100; and embroidery pattern data. The embroidery device 1 is configured in such a manner that a maximum number of rotations of the main shaft drive motor of the motor-driven sewing machine 100 is limited, and also, electric power is supplied from the motor-driven sewing machine 100 via the connector 7.

Description

  The present invention relates to an embroidery device, and more particularly to an embroidery device that can be attached to and detached from an electric sewing machine having a DC motor as a spindle drive motor. Furthermore, the present invention relates to an electric sewing machine provided with the embroidery device.

  2. Description of the Related Art Conventionally, a sewing machine having an embroidery function for sewing an embroidery pattern such as an anime character or an art pattern on a cloth is known (for example, see Patent Document 1). Such a sewing machine includes an embroidery frame, an X pulse motor and a Y pulse motor for moving the embroidery frame in the XY direction, an embroidery pattern, in addition to the structural elements of the sewing machine for normal sewing (straight stitching, zigzag sewing, etc.) And an embroidery pattern selection device having data. For this reason, a sewing machine having an embroidery sewing function tends to have a sewing machine body larger and more expensive than a sewing machine for normal sewing.

  In order to avoid this, a sewing machine including an embroidery device that can be attached to and detached from the sewing machine body is also known. Usually, such a sewing machine needs to supply power to the embroidery device separately from the sewing machine body, and the user often has to insert two power cords into an outlet, which is often inconvenient.

  On the other hand, in the invention described in Patent Document 2, when performing embroidery stitching, the amount of power supplied to the sewing-side zigzag pulse motor and feed pulse motor for swinging the sewing needle or feeding the cloth is reduced. The surplus power is supplied from the sewing machine to the embroidery device. For this reason, the user only has to insert only one power cord connected to the sewing machine into the outlet.

JP 2001-104672 A JP 2000-61183 A

  However, even when performing embroidery stitching in the invention described in Patent Document 2, the zigzag pulse motor and the feed pulse motor remain energized with low power so as not to rotate, and consume a considerable amount of power. Therefore, a large amount of power cannot be supplied from the sewing machine to the embroidery device. For this reason, the embroidery device is provided only with an X pulse motor and a Y pulse motor for moving an embroidery frame operable with low power, and is not provided with an embroidery pattern selection device. In other words, the sewing machine main body needs to have an embroidery pattern selection device, that is, a part of the embroidery function. Therefore, such an embroidery device cannot perform embroidery sewing using a sewing machine having no embroidery function.

  Further, a purchaser of a sewing machine often has a problem when purchasing a cheap sewing machine having no embroidery function or an expensive sewing machine having an embroidery function. Furthermore, a purchaser of a sewing machine that does not have an embroidery function may desire embroidery sewing after purchase. For this reason, it is desirable that an embroidery apparatus that can perform embroidery sewing using a sewing machine having no embroidery function can be provided as an option of the sewing machine.

  Therefore, an embroidery device that enables embroidery sewing using a sewing machine that does not have an embroidery function by simply being connected to the sewing machine without requiring separate power supply is desired.

  According to a first aspect of the present invention, in an embroidery apparatus that can be attached to and detached from an electric sewing machine having a DC motor as a main shaft driving motor, the electric sewing machine includes a connector for electrically connecting to the electric sewing machine and embroidery pattern data. An embroidery device is provided, which is configured to limit the maximum number of rotations of the spindle driving motor and to be supplied with electric power from an electric sewing machine through a connector.

  In the first aspect of the present invention, it is preferable that the rotational speed of the spindle drive motor is limited by serial communication via a connector.

  In the first aspect of the present invention, it is preferable to further include a touch panel type liquid crystal display configured to display an embroidery pattern and to be able to select the embroidery pattern.

  In the first aspect of the present invention, it is preferable that the touch panel type liquid crystal display is swingable with respect to the main body of the embroidery apparatus.

  In the second aspect of the present invention, the electric sewing machine including the DC motor as the main shaft driving motor includes the embroidery device of the first aspect of the present invention, and the maximum rotation speed of the main shaft driving motor is higher in the embroidery sewing mode than in the normal sewing mode. An electric sewing machine characterized by being set low is provided.

  The embroidery apparatus according to the present invention is simply connected to the sewing machine without requiring a separate power supply, and enables embroidery sewing using a sewing machine having no embroidery function.

FIG. 1 is a front view of an embroidery apparatus according to the present invention. FIG. 2 is a plan view of the embroidery apparatus according to the present invention. FIG. 3 is a right side view of the embroidery apparatus according to the present invention. FIG. 4 is a front view of the electric sewing machine in which the embroidery device according to the present invention is installed. FIG. 5 is a right side partial cross-sectional view taken along line AA of FIG. 1 in a state where the liquid crystal display is swung with respect to the main body. FIG. 6 is a control block diagram of the embroidery device and the electric sewing machine according to the present invention. FIG. 7 is an example of a screen displayed on the liquid crystal display when an embroidery pattern is selected. FIG. 8 shows a flowchart of processing on the electric sewing machine side. FIG. 9 shows a speed data table stored in the ROM of the electric sewing machine. FIG. 10 shows a flowchart of the embroidery pattern selection process on the embroidery apparatus side. FIG. 11 simply shows the arrangement of embroidery pattern data stored in the ROM of the embroidery apparatus. FIG. 12 shows a flowchart of interrupt processing on the embroidery apparatus side. FIG. 13 shows a flowchart of interrupt processing on the electric sewing machine side.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals are assigned to the same or similar components.

  First, the configuration of the embroidery device and the electric sewing machine according to the present invention will be described with reference to FIGS.

  1 to 3 respectively show a front view, a plan view, and a right side view of the embroidery device 1 according to the present invention. FIG. 4 is a front view of the electric sewing machine 100 in which the embroidery device 1 according to the present invention is installed. As shown in FIG. 4, the embroidery device 1 is installed in the electric sewing machine 100 when performing embroidery sewing using the electric sewing machine 100 having no embroidery function. An embroidery frame 2 is attached to the embroidery device 1, and embroidery sewing is performed in a state where a fabric to be embroidery sewn is sandwiched between the embroidery frame 2. Since the embroidery frame 2 is moved in a plane perpendicular to the sewing needle 101 of the electric sewing machine 100 by two pulse motors (not shown) provided in the embroidery apparatus 1, embroidery sewing is possible.

  As best seen in FIG. 2, the embroidery device 1 includes a main body 3 and an arm 4. The arm 4 can rotate in the direction of arrow B in FIG. 2 with respect to the main body 3 and can be completely folded on the main body 3. For this reason, the embroidery device 1 does not occupy a large space during storage and is easy to carry. The arm 4 includes a carriage 5 for attaching the embroidery frame 2 and a Y pulse motor (not shown) for moving the carriage 5 in the Y direction (see FIG. 2). On the other hand, the main body 3 includes an X pulse motor (not shown) for moving the arm 4 along the guide groove 6 of the main body 3 in the X direction (see FIG. 2). By driving the X pulse motor and the Y pulse motor, the embroidery frame 2 attached to the carriage 5 can be moved in the XY directions.

  As shown in FIGS. 1 and 3, the main body 3 further includes a connector 7, a control circuit board (not shown), and a liquid crystal display 8. As shown in FIG. 4, a connection cord 200 for electrically connecting the embroidery device 1 and the electric sewing machine 100 is attached to the connector 7, and power is supplied from the electric sewing machine 100 to the embroidery device 1 via the connector 7. Is supplied. For this reason, as shown in FIG. 6, only one power cord 300 from the electric sewing machine 100 is sufficient to be plugged into the outlet.

  A CPU 18, ROM 19 and RAM 20 (see FIG. 6) are mounted on the control circuit board. These functions will be described later.

  The liquid crystal display 8 is a touch panel type, and the user can select a desired embroidery pattern by operating the touch panel by pressing it with a finger. Further, since the embroidery pattern is displayed on the liquid crystal display 8, the user can actually visually confirm the embroidery pattern. FIG. 7 is an example of a screen displayed on the liquid crystal display 8 when an embroidery pattern is selected.

  As shown in FIG. 1, the liquid crystal display 8 is fixed to the main body 3 by a disc spring 9, a washer 10 and a nut 11 so as to be swingable. FIG. 5 is a partial right side cross-sectional view taken along the line AA of FIG. 1 in a state where the liquid crystal display 8 is swung with respect to the main body 3. The liquid crystal display 8 can swing around the axis of the disc spring 9, the washer 10 and the nut 11 with respect to the main body 3 in the direction of arrow C in FIG. 5. For this reason, the user can adjust the liquid crystal display 8 to a desired angle with good operability and / or visibility.

  Next, a method for controlling the embroidery device 1 and the electric sewing machine 100 according to the present invention will be described with reference to FIGS.

  FIG. 6 is a control block diagram of the embroidery device 1 and the electric sewing machine 100 according to the present invention. First, the electric sewing machine 100 side will be described. Electric power supplied from the outlet through the power plug 102 is supplied to the motor and IC of the electric sewing machine 100 through the power circuit 103. The electric sewing machine 100 includes three motors, that is, a zigzag pulse motor 104, a feed pulse motor 105, and a DC motor 106. The zigzag pulse motor 104 is used to move the sewing needle 101 left and right so as to enable zigzag stitching, and is driven by a current supplied from the zigzag pulse motor driver 107. The feed pulse motor 105 is used to control the cloth feed amount, and is driven by a current supplied from the feed pulse motor driver 108. A DC motor 106 that is a main shaft driving motor is used to move the sewing needle 101 up and down, and is driven by a current supplied from the DC motor driving circuit 109. For this reason, when the rotational speed of the DC motor 106 changes, the rotational speed of the electric sewing machine 100 also changes. The timing sensor 110 detects the timing of the vertical movement of the sewing needle 101. When the user presses a start / stop button 118 (see FIG. 4) on the electric sewing machine 100, the start / stop switch 111 is turned on. As a result, the driving of the DC motor 106 is turned on or off, and the vertical movement of the sewing needle 101 is started or stopped.

  A portion including the I / O 112, the CPU 113, the ROM 114, and the RAM 115 functions as a control unit for controlling the motor and the like. The I / O 112 is an input / output device, and an input signal is transmitted to the CPU 113 via the I / O 112 and a control signal from the CPU 113 is output. The ROM 114 stores a program for controlling the electric sewing machine 100 or the embroidery device 1 and sewing pattern (stitch) data. The RAM 115 is used as a program work area in the processing on the electric sewing machine 100 side described later.

  The electric sewing machine 100 further includes a pattern selection display device 116. The pattern selection display device 116 typically includes a switch and a light emitting diode (LED). The user can select a desired sewing pattern by pressing a switch corresponding to the desired sewing pattern. When the switch is pressed, a signal is transmitted to the input / output device, and the corresponding light emitting diode is turned on.

  Next, the embroidery device 1 side will be described. Electric power is supplied from the electric sewing machine 100 to the embroidery apparatus 1 via the connector 117 of the electric sewing machine 100 and the connector 7 of the embroidery apparatus 1. More specifically, a part of the electric power supplied to the motor in the electric sewing machine 100 is supplied to the embroidery apparatus 1. Usually, in the electric sewing machine 100, the power consumption of the DC motor 106, which is the spindle drive motor, is the largest. Therefore, in the embroidery sewing mode, the power consumption of the DC motor 106 is suppressed by setting the maximum rotational speed of the DC motor 106 lower than that in the normal sewing mode, and hence the maximum rotational speed of the electric sewing machine 100, and the surplus power is reduced to the electric sewing machine 100. Is supplied to the embroidery device 1. For this reason, it is possible to supply the embroidery apparatus 1 with electric power sufficient to drive the embroidery apparatus 1 from the electric sewing machine 100. The electric power supplied from the electric sewing machine 100 via the connector 7 is supplied to ICs such as the CPU 18, ROM 19, and RAM 20 of the embroidery apparatus 1 through the power supply circuit 12.

  The embroidery device 1 includes two motors, that is, an X pulse motor 13 and a Y pulse motor 14. The X pulse motor 13 is used to move the embroidery frame 2 in the X direction, and is driven by an electric current supplied from the X pulse motor driver 15. The Y pulse motor 14 is used to move the embroidery frame 2 in the Y direction, and is driven by a current supplied from the Y pulse motor driver 16.

  A portion including the I / O 17, the CPU 18, the ROM 19, and the RAM 20 functions as a control unit for controlling the motor and the like. The I / O 17 is an input / output device, and an input signal is transmitted to the CPU 18 via the I / O 17 and a control signal from the CPU 18 is output. The ROM 19 stores a program for controlling the embroidery device 1 and embroidery pattern data. The RAM 20 is used as a program work area in processing on the embroidery device 1 side described later.

  As described above, the liquid crystal display 8 used for selecting an embroidery pattern is a touch panel type. When the embroidery pattern displayed on the liquid crystal display 8 is pressed by the user, a coordinate signal corresponding to the pressed position is input to the I / O 17, the coordinates are recognized by the program stored in the ROM 19, and the embroidery pattern is changed. Selected. The selected embroidery pattern is displayed on the liquid crystal display 8.

  Hereinafter, the processing flow of the electric sewing machine 100 and the embroidery device 1 will be described with reference to FIGS.

  FIG. 8 shows a flowchart of processing on the electric sewing machine 100 side. When the user turns on the electric sewing machine 100, the following processing is started. In step S1, S_FLAG (embroidery sewing start permission flag) is set to 0 and the flag is cleared. In step S2, P1 (see FIG. 6) of the I / O 112 is read in order to confirm the connection between the embroidery device 1 and the electric sewing machine 100. If P1 is 0, the process proceeds to step S4, and if P1 is 1, the process proceeds to step S3. When the embroidery device 1 and the electric sewing machine 100 are electrically connected via the respective connectors 7 and 117, P1 of the I / O 112 is connected to GND of the power supply circuit 103 and becomes 0, and the embroidery after step S4 is performed. The sewing mode is executed. On the other hand, when the embroidery device 1 and the electric sewing machine 100 are not connected, P1 of the I / O 112 becomes 1, and the normal sewing mode is executed in step S3.

  In step S4, P2 of the I / O 112 (see FIG. 6) is read in order to determine whether the start / stop switch 111 is on or off. If the start / stop switch 111 is on, the process proceeds to step S5. When the start / stop button 118 is pressed by the user, the start / stop switch 111 is turned on. In step S5, it is determined whether the DC motor 106 is stopped. If the DC motor 106 is not stopped, it is determined that the start / stop button 118 has been pressed to stop the driving of the DC motor 106, and in step S6, an output of a PWM signal for driving the DC motor 106 is output. The driving of the DC motor 106 is stopped by stopping. Then, it returns to step S4.

  If the DC motor 106 is stopped in step S5, it is determined that the start / stop button 118 has been pressed to drive the DC motor 106, and the process proceeds to step S7. In step S7, S_FLAG is read to confirm permission to start embroidery sewing. If the embroidery pattern selection process described later has already been completed, S_FLAG is 1, and the process proceeds to step S8, where the DC motor 106 is started. If S_FLAG is 0, the embroidery pattern selection process has not yet been completed, and the process returns to step S4 without starting the DC motor 106. In step S8, the initial value (data_100 (see FIG. 9)) in the speed data table stored in the ROM 114 of the electric sewing machine 100 is set in the PWM register. In step S9, the initial value is output to output the DC motor 106. Start. As a result, the DC motor 106 is started at a rotational speed corresponding to the minimum rotational speed (100 rpm) of the electric sewing machine 100 in the speed data table. Then, it returns to step S4.

  If the start / stop switch 111 is off in step S4, the process proceeds to step S10. In step S10, the state of the timing sensor 110 is read, and in step S11, the timing is determined. If the timing is not the frame movement timing, the process returns to step S4. If the timing is the frame movement timing, the process proceeds to step S12. In step S12, a frame movement command is transmitted to the embroidery apparatus 1. Then, it returns to step S4. Transmission / reception of commands between the embroidery apparatus 1 and the electric sewing machine 100 is performed by serial communication by wire (connection code 200) via the connectors 7 and 117, respectively.

  FIG. 10 shows a flowchart of the embroidery pattern selection process on the embroidery device 1 side. FIG. 11 simply shows the arrangement of the embroidery pattern data stored in the ROM 19 of the embroidery apparatus 1. When the pattern selection process is started by operating the touch panel type liquid crystal display 8, the following process is started. In step S13, it is confirmed whether pattern selection has been performed on the touch panel. When the pattern is not selected, the touch panel waits for input. On the other hand, if a pattern is selected, the process proceeds to step S14. In step S <b> 14, the head address (for example, bbbbbbh) of the selected embroidery pattern data is set to Select_ptr in the RAM 20. In step S15, the address of the first (first stitch) sewing data of the selected embroidery pattern is set in Add_ptr in the RAM 20. In step S <b> 16, display data of the selected embroidery pattern in Select_ptr + 2 is read from the ROM 19 and displayed on the liquid crystal display 8. In step S <b> 17, an EMBREADY command indicating that the embroidery pattern selection is completed and preparation for embroidery sewing is completed is transmitted to the electric sewing machine 100. After that, the touch panel waits for input. On the other hand, when an EMBREADY command is received on the electric sewing machine side, an interrupt process on the electric sewing machine 100 side described later is executed and 1 is set in S_FLAG. As a result, in the embroidery sewing mode, the DC motor 106 can be started (see step S7 to step S9 in FIG. 8).

  FIG. 12 shows a flowchart of interrupt processing on the embroidery device 1 side. When a frame movement command is transmitted from the electric sewing machine 100 to the embroidery apparatus 1 in step S12 of FIG. 8, a reception interruption by serial communication is generated, and the following processing is started.

  In step S18, the 2-byte sewing data at the address Add_ptr set in step S15 of FIG. 10 is read to data1 in the RAM 20, and the 2-byte sewing data at the address Add_ptr + 1 is read to data2 in the RAM 20. . In step S19, it is determined whether the value of data1 is a speed code (0x81). If the value of data1 is not a speed code, the process proceeds to step S20. In step S20, it is determined whether the value of data1 is an end code (0x80). If the value of data1 is not an end code, the process proceeds to step S21. In step S21, the X pulse motor driver 15 and the Y pulse motor driver 16 are controlled based on the moving data of data1 and data2, and the X pulse motor 13 and the Y pulse motor 14 are driven. As a result, the embroidery frame 2 is moved. In step S22, 2 is added to Add_ptr, and the sewing data is advanced. Thereafter, the interruption process ends, and the process returns to the embroidery pattern selection process of FIG.

  In step S19, if the value of data1 is a speed code, the process proceeds to step S23. In step S23, a speed data command is issued, and the speed code and subsequently stored speed data (see FIG. 11) are transmitted to the electric sewing machine 100. Before proceeding to step S24, an interruption process on the electric sewing machine 100 side described later is executed, and the rotational speed of the DC motor 106 and, consequently, the rotational speed of the electric sewing machine 100 are updated according to the transmitted speed data. Thereafter, in step S24, 2 is added to Add_ptr, and the sewing data is advanced.

  If the value of data1 is the end code in step S20, the process proceeds to step S25. In step S25, a motor stop command is transmitted to the electric sewing machine 100. Thereafter, interruption processing on the electric sewing machine 100 side described later is executed, the DC motor 106 is stopped, and the embroidery sewing is finished.

  FIG. 13 shows a flowchart of interrupt processing on the electric sewing machine 100 side. When the EMBREADY command, the speed data command, or the motor stop command is transmitted from the embroidery device 1 to the electric sewing machine 100 in step S17 in FIG. 10, step S23 in FIG. 12, or step S25, a reception interruption by serial communication occurs. The following processing is started.

  In step S26, it is determined whether the received signal is an EMBREADY command. If the received signal is not an EMBREADY command, the process proceeds to step S27. In step S27, it is determined whether the received signal is a motor stop command. If the received signal is not a motor stop command, the process proceeds to step S28. In step S28, it is determined whether the received signal is a speed data command. If the received signal is not a speed data command, the interrupt process is terminated and the process returns to the loop process of FIG.

  If the received signal is an EMBREADY command in step S26, the process proceeds to step S29. In step S29, 1 is set to S_FLAG so that the DC motor 106 can be started. Thereafter, the interrupt process is terminated, and the process returns to the loop process of FIG.

  If the received signal is a motor stop command in step S27, the process proceeds to step S30. In step S30, the output of the PWM signal is stopped and the DC motor 106 is stopped. Thereafter, the interrupt process is terminated, and the process returns to the loop process of FIG.

  If the received signal is a speed data command in step S28, the process proceeds to step S31. In step S31, an index of the speed data table is acquired from the speed data table (see FIG. 9) and set in the work area n in the RAM 115. In step S32, using n as an index, duty ratio data for PWM control of the motor is obtained from the speed data table stored in the ROM 114, and set in the PWM register. Thereafter, a pulse having the set duty ratio is output to the DC motor drive circuit 109. As a result, a voltage corresponding to the duty ratio is applied to the DC motor 106, and the rotation speed of the DC motor 106 and thus the rotation speed of the electric sewing machine 100 are updated to a new rotation speed corresponding to the speed data. Thereafter, the interrupt process is terminated, and the process returns to the loop process of FIG.

  The speed data table in FIG. 9 stores duty ratio data for PWM control of the DC motor 106 corresponding to each rotational speed of the electric sewing machine 100. As the duty ratio increases, the voltage applied to the DC motor 106 increases, and the rotational speed of the DC motor 106 and thus the rotational speed of the electric sewing machine 100 are also increased. In the normal sewing mode, all data of the table is used, and the electric sewing machine 100 is driven at a rotational speed of 100 to 700 rpm. On the other hand, in the embroidery sewing mode, the data from the 0th to the 9th in the table are used. That is, an index of n = 9 or less is stored in the speed data in each embroidery pattern data in FIG. Therefore, in the embroidery sewing mode, when a speed data command is transmitted from the embroidery device 1 to the electric sewing machine 100, the maximum rotational speed of the electric sewing machine 100 is limited to 400 rpm or less, and the power consumption of the DC motor 106 is suppressed. In this case, in the embroidery sewing mode, the maximum rotational speed of the electric sewing machine 100 is limited, and the speed of the vertical movement of the sewing needle is slower than in the normal sewing mode, but this speed is a level that does not cause a problem in actual use. Therefore, the embroidery device 1 is simply connected to the sewing machine without requiring a separate power supply, and enables embroidery sewing using a sewing machine having no embroidery function.

  As mentioned above, although preferred embodiment which concerns on this invention was described, this invention is not limited to this embodiment, A various correction and change can be given within description of a claim. For example, the maximum number of rotations of the electric sewing machine in the embroidery sewing mode may be a value larger than 400 rpm as long as a sufficient surplus power for driving the embroidery device can be secured. Further, transmission / reception of commands between the embroidery apparatus and the electric sewing machine may be performed by wireless communication such as infrared communication, Bluetooth (registered trademark), or wireless LAN, without using a wire.

DESCRIPTION OF SYMBOLS 1 Embroidery device 2 Embroidery frame 3 Main body 4 Arm 5 Carriage 6 Guide groove 7 Connector 8 Liquid crystal display 9 Disc spring 10 Washer 11 Nut 12 Power supply circuit 13 X pulse motor 14 Y pulse motor 15 X pulse motor driver 16 Y pulse motor driver 17 I / O
18 CPU
19 ROM
20 RAM
DESCRIPTION OF SYMBOLS 100 Electric sewing machine 101 Sewing needle 102 Power plug 103 Power supply circuit 104 Zigzag pulse motor 105 Feed pulse motor 106 DC motor 107 Zigzag pulse motor driver 108 Feed pulse motor driver 109 DC motor drive circuit 110 Timing sensor 111 Start / stop switch 112 I / O
113 CPU
114 ROM
115 RAM
116 pattern selection display device 117 connector 118 start / stop button 200 connection cord 300 power cord

Claims (5)

In an embroidery device that can be attached to and detached from an electric sewing machine equipped with a DC motor as a spindle drive motor,
A connector for electrical connection with the electric sewing machine;
With embroidery pattern data,
An embroidery apparatus configured to limit a maximum number of rotations of a spindle driving motor of the electric sewing machine and to be supplied with electric power from the electric sewing machine via the connector.   The embroidery device according to claim 1, wherein limiting the number of rotations of the spindle drive motor is performed by serial communication via the connector.   The embroidery apparatus according to claim 1, further comprising a touch panel type liquid crystal display configured to display an embroidery pattern and to be able to select the embroidery pattern.   The embroidery apparatus according to claim 3, wherein the touch panel type liquid crystal display is swingable with respect to a main body of the embroidery apparatus. In an electric sewing machine equipped with a DC motor as the spindle drive motor,
An embroidery device according to any one of claims 1 to 4,
The electric sewing machine according to claim 1, wherein the maximum rotational speed of the spindle driving motor is set lower in the embroidery sewing mode than in the normal sewing mode.

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