CN114075721A

CN114075721A - Sewing device

Info

Publication number: CN114075721A
Application number: CN202110913348.XA
Authority: CN
Inventors: 福田悠二; 安西哲也
Original assignee: Juki Corp
Current assignee: Juki Corp
Priority date: 2020-08-12
Filing date: 2021-08-10
Publication date: 2022-02-22
Also published as: JP2022032580A

Abstract

The invention provides a sewing device, which can reproduce sewing conditions set for sewing patterns. Comprising: a sewing part which is sewed according to a sewing pattern; an input unit (80) for setting sewing conditions with respect to the sewing pattern; and a control device (90) for controlling the movement of the sewing part to perform sewing based on the sewing pattern data with the sewing pattern and the sewing condition, wherein the control device stores the sewing pattern data as a history in a nonvolatile storage unit (97), and can read the sewing pattern data stored as the history to execute the sewing.

Description

Sewing device

Technical Field

The present invention relates to a sewing device for sewing according to sewing pattern data.

Background

In a conventional sewing machine, a control device stores sewing pattern data for performing specific stitches, pattern sewing, and the like, and editing operations such as selection of the sewing pattern data and change of parameters are performed from an input device such as a touch panel connected to the storage device (for example, see patent document 1).

Patent document 1: japanese laid-open patent publication No. 9-290083

In the conventional sewing device, when various sewing conditions are set for the sewing pattern data, the various sewing conditions for the sewing pattern data are not recorded, and the sewing conditions must be set again in order to be reproduced at the next sewing.

Disclosure of Invention

The invention aims to provide a sewing device capable of reproducing the sewing pattern in addition to the sewing conditions set for the sewing pattern.

In order to solve the above problem, a sewing device is characterized by comprising: a sewing part which is sewed according to a sewing pattern; an input part for setting sewing conditions with respect to the sewing patterns; and a control device for controlling the movement of the sewing part to perform sewing based on sewing pattern data with the determined sewing pattern and sewing conditions, wherein the control device stores the sewing pattern data subjected to sewing as a history in a nonvolatile storage unit, and can read the sewing pattern data stored as the history to execute sewing.

In addition, the control device may store the sewing pattern data as a history in the storage unit when a sewing pattern is changed for the sewing pattern data that has been sewn.

In addition, the control device may store the sewing pattern data as a history in the storage unit when a sewing condition is changed for the sewing pattern data on which sewing has been performed.

ADVANTAGEOUS EFFECTS OF INVENTION

The present invention can be easily reproduced including the sewing conditions set for sewing patterns.

Drawings

Fig. 1 is a front view of a sewing machine as an embodiment of the invention.

Fig. 2 is a left side view of the sewing machine.

Fig. 3 is a functional block diagram showing a control system of the sewing machine.

Fig. 4 is an explanatory diagram showing an example of display of an input screen displayed on the display unit of the display input device.

Fig. 5 is an explanatory diagram showing division of a plurality of display regions of an input screen by imaginary lines.

Fig. 6 is a front view of a list of sewing patterns provided on the upper cover of the arm portion of the sewing machine.

Fig. 7 is an explanatory diagram showing a display example of a history screen displayed on the display unit of the display input device.

Fig. 8 is a flowchart showing the history storage processing.

Detailed Description

[ outline of embodiments of the invention ]

Next, a sewing device according to the present invention will be described with reference to the drawings. Fig. 1 is a front view of a sewing machine 10 as a sewing apparatus, fig. 2 is a left side view, and fig. 3 is a functional block diagram showing a control system.

The sewing machine 10 includes: a needle vertical moving mechanism which uses the sewing machine motor 11 as a driving source and provides vertical moving action to the needle bar holding the sewing needle 2; a lower feeding mechanism which utilizes the power of the sewing machine motor 11 to convey the sewed object from the lower part of the needle plate through the feeding teeth; an upper feeding mechanism which conveys the sewed object from the upper feeding part 4 contacted with the upper part of the sewed object by the power of the sewing machine motor 11; a kettle mechanism; a cloth presser foot 3 for pressing the sewed object on the needle plate from the upper part; a needle swing mechanism which makes the needle bar move arbitrarily in the direction orthogonal to the cloth feeding direction; a thread regulator device which gives thread tension to the upper thread passing through the sewing needle 2; a thread take-up lever for lifting the upper thread; a thread cutting device for cutting the sewing end of the upper thread and the lower thread; a display input device 80 as an input unit for displaying various information related to sewing and receiving input of various settings; a control device 90 for controlling the operation of each component of the sewing machine 10; and a sewing machine frame 20 which accommodates or supports each structure of the sewing machine 10.

In the following description, the structures of the needle vertical movement mechanism, the lower feed mechanism, the upper feed mechanism, the cloth presser foot 3, the pot mechanism, the needle swing mechanism, the thread adjuster device, the thread take-up lever, and the thread cutting device are collectively referred to as a "sewing portion".

In the following description, a horizontal direction parallel to a direction in which the lower feed mechanism conveys the workpiece is referred to as an X-axis direction, a downstream side of the workpiece in the feed direction is referred to as "front", and an upstream side of the workpiece in the feed direction is referred to as "rear". The direction horizontal and orthogonal to the X-axis direction is the Y-axis direction, the left-hand side facing forward is the "left", and the right-hand side is the "right". In addition, a direction orthogonal to the X-axis direction and the Y-axis direction is a Z-axis direction, one of which is "up" and the other is "down".

The sewing machine frame 20 has: a sewing machine base part 21 extending along the Y-axis direction; a vertical body part 22 rising from a right end part of the sewing machine base part 21; and a sewing machine arm 23 projecting leftward in the Y-axis direction from an upper end of the longitudinal body portion 22.

A needle bar for holding the sewing needle 2, the cloth presser foot 3 and the upper feed portion 4 are supported at the lower part of the left end of the arm portion 23 of the sewing machine.

A rectangular display screen of the display input device 80 is disposed on the front surface side of the vertical body section 22. The front surface of the vertical body section 22 and the display screen of the display input device 80 that is flush with the front surface are constituted by inclined surfaces that slightly incline rearward on the upper side and the left side of the X-Z plane.

The display screen of the display input device 80 is inclined as described above, so that the operator of the sewing machine who performs work by facing the needle drop position with respect to the sewing machine 10 from the rear can easily observe the display screen.

The upper surface of the sewing machine base part 21 is a smooth surface along the X-Y plane, and a needle plate not shown is disposed at the needle drop position of the sewing needle 2 in a plane with the upper surface of the sewing machine base part 21.

Since the needle vertical movement mechanism is the same as a known mechanism, a detailed description thereof will be omitted. The needle up-down moving mechanism uses a sewing machine motor 11 built in the sewing machine as a driving source, and can move the needle bar up and down through a crank mechanism.

Since the needle swing mechanism is the same as a known mechanism, a detailed description thereof is omitted. The needle swing mechanism includes: a support frame which supports the needle bar in a manner of moving up and down; and a needle swing motor 15 for arbitrarily moving the tip end of the needle bar in the Y-axis direction via the support frame.

The tank mechanism is the same as a known mechanism, and therefore, a detailed description thereof is omitted. The pot mechanism has a pot which is rotated by power from a sewing machine motor 11 at the lower side of a needle plate, catches a loop of an upper thread from a descending sewing needle 2 and winds the upper thread with the lower thread, and forms a stitch on a sewing object.

The take-up lever is moved up and down by power from a sewing machine motor 11 in a cycle identical to the needle drop. The upper thread towards the sewing needle is arranged on the thread take-up lever frame, and the upper thread is lifted by the kettle when the stitches of the upper thread and the lower thread are formed so as to fasten the stitches.

Since the lower feed mechanism is the same as a known mechanism, a detailed description thereof is omitted. The lower feed mechanism has feed teeth for advancing and retracting the tooth tips from the opening of the needle plate, and the reciprocating motion in the X-axis direction and the reciprocating motion in the Z-axis direction are taken out from the sewing machine motor 11 and applied to the feed teeth. Thereby, the feed teeth perform an oblong motion around the Y axis in the X axis direction in the longitudinal direction. When the feed teeth pass through the upper part of the orbit of the oblong motion, the tooth tops move forward while protruding upward from the opening part of the needle plate, and the sewing object on the needle plate is conveyed forward.

The lower feed mechanism further includes a lower feed adjustment motor 12, and the lower feed adjustment motor 12 adjusts the stroke width of the reciprocating motion in the X-axis direction transmitted from the sewing machine motor 11, and can arbitrarily adjust the feed amount of the workpiece by the feed teeth.

The upper feed mechanism is the same as a known mechanism, and therefore, a detailed description thereof is omitted. The upper feed mechanism has an upper feed portion which is brought into contact with the workpiece at the needle drop position from above the needle plate to perform a feed operation, and takes out the reciprocating operation in the X-axis direction and the reciprocating operation in the Z-axis direction from the sewing machine motor 11 to be applied to the upper feed portion. Thereby, the upper feed portion performs an oblong motion around the Y axis in the X axis direction in the longitudinal direction. When the upper feed portion passes through the lower portion of the orbit of the oblong motion, the front end portion moves forward along the upper surface of the needle plate, and the sewn object on the needle plate is conveyed forward.

The upper feed mechanism further includes an upper feed adjustment motor 13, and the upper feed adjustment motor 13 adjusts the stroke width of the reciprocating motion in the X-axis direction transmitted from the sewing machine motor 11, and can arbitrarily adjust the feed amount of the workpiece by the feed teeth.

The upper feed unit can be manually switched between a retracted position where feeding is not performed and a feed position where feeding is performed, and can be selected whether or not upper feeding is performed. A sensor for detecting which position the upper feeding portion is at, the retracted position or the feeding position may be provided, and a detection signal thereof may be input to the control device 90.

The cloth presser foot 3 is provided above the needle fall position of the needle plate and can press the sewed object from above. The cloth presser foot 3 is attached to the lower end portion of a presser foot bar supported to hang down from the lower portion of the left end of the sewing machine arm 23. The presser bar is provided with spring pressure in the sewing machine arm 23, and the cloth presser 3 is pressed toward the needle plate side to provide presser pressure to the object to be sewn.

The cloth presser foot 3 has a plurality of types, and can be replaced with an appropriate cloth presser foot 3 according to the type of sewing.

The presser bar can retract the cloth presser 3 upward by a manual lever or a presser motor 14, not shown. The presser foot motor 14 can arbitrarily adjust the presser foot pressure of the cloth presser foot.

Since the wire adjuster device is the same as a known mechanism, a detailed description thereof is omitted. The thread adjusting device is not shown in the drawings, but holds the upper thread in the middle of the path of the upper thread and applies tension to the upper thread by the holding pressure. The thread adjuster device can adjust the clamping pressure by the thread adjuster solenoid 16, thereby giving an arbitrary thread tension to the upper thread.

Since the thread cutting device is the same as a known mechanism, a detailed description thereof is omitted. The thread cutting device is provided with a cutter working between the needle plate and the kettle mechanism, and is used for cutting off the upper thread and the lower thread. The thread cutting device has a thread cutting solenoid 17 for operating the cutter.

The display input device 80 includes: a display part 81 provided on the front surface side of the longitudinal body part 22 of the sewing machine frame 20; a touch panel 82 provided so as to overlap the front surface side of the display section 81; and three

rotating disks

83, 84, 85 arranged substantially in the Y-axis direction immediately below the display portion 81.

The display unit 81 is composed of a liquid crystal display and an organic el (electro luminescence), and displays an input screen G1 described later by display control performed by the control device 90. The touch panel 82 functions as an input detection unit that detects a contact input position of an operator of the sewing machine and detects an input operation on the input screen G1.

The three

rotation disks

83, 84, and 85 each include an

encoder

831, 841, and 851, and the rotation operation amount of the operator is input to the control device 90 via the

encoders

831, 841, and 851.

[ control System of Sewing machine ]

Next, the configuration of the control system of the sewing machine 10 will be described with reference to fig. 3.

The control device 90 of the sewing machine 10 includes: a ROM 92 that stores various programs for performing various controls and processes described later, sewing pattern data for performing various kinds of sewing, and other various kinds of setting data; a CPU 91 that executes various programs in the ROM 92; a RAM 93 which becomes a work area when various programs are executed; a data memory 97 which is a nonvolatile memory unit; and an input/output interface 94 and an output interface 95 connected to the CPU 91, the ROM 92, the RAM 93, and the data memory 97 via the bus.

The output interface 95 is connected to a sewing machine motor 11, a lower feed adjustment motor 12, an upper feed adjustment motor 13, a presser foot motor 14, a needle swing motor 15, a thread adjuster solenoid 16, and a thread cutting solenoid 17 via

drive circuits

11a, 12a, 13a, 14a, 15a, 16a, and 17 a. The CPU 91 can control the operations thereof.

The input/output interface 94 is connected to the display input device 80, a power switch 96, and a start button 98.

The sewing machine 10 is capable of controlling the forward and backward feed amount by the lower feed adjustment motor 12 and the left and right needle swing amount by the needle swing motor 15 by the control device 90, and dropping a needle at an arbitrary position on the X-Y plane with respect to a workpiece.

A plurality of sewing pattern data are stored in the data memory 97. As shown in fig. 6, a list display 232 showing a sewing pattern prepared in advance and a pattern number thereof is provided on the inner side of the openable cover 231 of the sewing machine arm 23.

The sewing pattern data records a plurality of needle drop positions in an X-Y plane determined corresponding to the sewing pattern and the setting of sewing conditions in the sewing of the sewing pattern.

The sewing conditions are settings related to "stop sewing of the starting end of sewing", "stop sewing of the ending end of sewing", "thread tension", "base line position of sewing pattern", "feed-in", "presser foot lift of cloth presser foot", "execution of tangent line", "presser foot pressure", "stitch width" and "stitch length". These sewing conditions can be changed in the setting contents on an input screen G1 described later.

The data memory 97 includes an initial data storage unit 971 and a history storage unit 972, and the initial data storage unit 971 stores sewing pattern data relating to the respective sewing patterns of the list display 232. The sewing pattern data stored in the initial data storage portion 971 is determined to have initial setting data (default data) with respect to the sewing conditions.

On the other hand, the history storage unit 972 stores sewing pattern data of a sewing pattern actually sewn by changing sewing conditions.

The controller 90 can read the sewing pattern data in the initial data storage 971 or the history storage 972, and control the lower feed adjustment motor 12 and the needle swing motor 15 to perform sewing for forming stitches corresponding to the sewing pattern.

[ display control of display input device ]

The display control of the display input device 80 by the control device 90 will be described. The display control and input processing performed by the display input device 80 described below are all performed by the CPU 91 of the control device 90 executing a program in the ROM 92.

Fig. 4 is an explanatory view showing an example of display of the input screen G1 displayed on the display unit 81 of the display input device 80, and fig. 5 is an explanatory view showing division of a plurality of display areas of the input screen G1 by imaginary lines. In the explanatory drawings showing these display examples and the explanatory drawings showing other display examples described later, the upper, lower, left, and right sides of the paper surface substantially coincide with the upper, lower, left, and right sides of the sewing machine 10.

As shown in the drawing, the input screen G1 is rectangular in overall length and is divided into a first region R1 extending over the entire left-right width of the upper end of the screen, a second region R2 extending over the entire left-right width of the lower portion of the screen, third to fifth regions R3 to R5 disposed below the first region, and a sixth region R6 extending over the entire left-right width of the lower end of the screen.

The third to fifth regions R3 to R5 are vertically long rectangular regions each obtained by dividing the region between the second region R2 and the sixth region R6 into three parts in the left-right direction, and the left side is the third region R3, the center is the fourth region R4, and the right side is the fifth region R5.

The third to fifth regions R3 to R5 are trisected in the left-right direction in the example of fig. 5, but are not limited thereto, and the ratios may be increased or decreased. For example, the left and right widths of the central fourth region R4 may be changed to be 1/4 to 1/2 of the entire width, and the left and right widths of the third region R3 and the fifth region R5 may be made equal on both sides.

In the first region R1, a support button B11, a setting button B12, a sewing button B13, a history button B14, and a portal button B15 for switching to various input screens are arranged in order from left to right.

These buttons B11 to B15 can be operated by touching the button positions to perform button input. Further, by sliding the first region R1 to the left and right, the positions of the buttons B11 to B15 can be scrolled.

The support button B11 is a button for switching the display to a support screen on which an operation manual or the like of the sewing machine 10 is displayed.

The setting button B12 is a button for switching the display to a setting screen for setting the brightness of a not-shown work light, the sound volume of a not-shown speaker, and the like with respect to the surrounding environment of the sewing machine 10.

The sewing button B13 is a button for switching the display to the input screen G1 of fig. 4. The input screen G1 enables various settings related to sewing.

The history button B14 is a button for switching display to a history screen G2 described later. The history screen G2 is an input screen for calling the sewing pattern data and the record data related to the setting of the sewing pattern data with respect to a plurality of sewing patterns which have been sewn in the past. The history screen G2 is described later.

The portal button B15 is a button for switching display to a browser screen for connection to the web portal of the sewing machine 10 via a network line.

In the second region R2, a cloth presser foot candidate display frame W21 configured by graphic and character string display, a selection button B21 as a sewing pattern of an operation portion for switching to various display screens, a setting button B22 of the sewing pattern, and a circulation selection button B23 are arranged in order from the left.

In the cloth presser candidate display frame W21, the type of the cloth presser 3 suitable for the sewing pattern currently selected is displayed. For example, in the example of fig. 4, graphic information and character information suitable for the selected sewing pattern are displayed for the cloth presser a and the cloth presser B.

The sewing pattern selection button B21 has a substantially rectangular contact range, and if the contact range is touched, the display is switched to the sewing pattern selection screen. The default sewing pattern data in the initial data storage portion 971 of the data memory 97 can be selected from the selection screen.

As described above, each sewing pattern is set with a pattern number. If a pattern number is selected and determined on the selection screen, the selected pattern number is displayed within the substantially rectangular contact range of the selection button B21.

The setting button B22 of the sewing pattern has a circular contact range, and an icon indicating the setting button is displayed on the inner side. If the setting button B22 is touched within the contact range, the display is switched to a predetermined setting screen. From this setting screen, settings relating to sewing patterns other than the parameters set by the buttons B31 to B53 described later can be made. For example, pattern editing such as vertical inversion and horizontal inversion of the sewing pattern can be performed from the setting screen.

The cycle selection button B23 has a circular contact range set therein, and an icon indicating that the button is a cycle selection button is displayed inside the button. If the touch cycle selection button B23 is within the contact range, it can be set whether to perform single-shot sewing or continuous sewing, wherein the single-shot sewing is performed in a single sewing pattern, and the continuous sewing is repeated. When the single-shot sewing is set for the loop selection button B23, the number of "1" is displayed inside the icon, and when the repeated sewing is being selected, display control is performed to delete the number inside the icon.

Three buttons serving as operation sections for setting a predetermined sewing pattern are arranged vertically in the third region R3 and the fifth region R5, respectively.

In the third region R3, a sewing start process setting button B31, a thread tension setting button B32, and a sewing end process setting button B33 are arranged in this order from above.

In the fifth region R5, the upper feed setting button B51, the presser foot raising setting button B52, and the tangent line setting button B53 are arranged in this order from above.

The various setting buttons B31, B32, B33, B51, B52, and B53 have circular contact ranges, and icons serving as content display units that display contents input from the setting buttons are displayed on the inner sides of the contact ranges.

In addition, setting information display units W31, W32, W33, W51, W52, and W53 as content display units are disposed on the outer lower portions of the various setting buttons B31, B32, B33, B51, B52, and B53, respectively, and display the contents input from the setting buttons and the setting values or setting states thereof by character information.

The sewing start processing setting button B31 is a button for selecting whether or not to execute sewing stop at the sewing start end and the type of sewing stop. For example, by repeatedly touching the contact range of the sewing start processing setting button B31, the settings of return sewing, sewing stop of the band, and sewing non-stop can be switched.

The wire tension setting button B32 is a button for arbitrarily setting the wire tension of the wire adjuster device generated by the wire adjuster solenoid 16. If the line tension setting button B32 is touched within the contact range, a line tension input screen is displayed, and the line tension can be set by an input operation on the screen or an input operation by rotation of the dial 84.

The sewing end processing setting button B33 is a button for selecting whether or not to execute sewing and a type of stopping sewing at the end of sewing. For example, the settings of the return sewing, the sewing stop of the band, and the non-stop sewing can be switched by repeatedly touching the contact range of the sewing end processing setting button B33.

The top feed setting button B51 is a button for setting the presence or absence of top feed by the top feed unit 4 and the top feed amount (the difference value between the bottom feed amount and the feed tooth). If the upper feed setting button B51 is touched within the contact range, the setting of the presence or absence of the execution of the upper feed is switched. When the execution of the top feed is set, the input screen of the top feed amount is displayed, and the top feed amount can be set by an input operation on the screen or an input operation by the rotation of the dial 84.

The presser foot lift setting button B52 is a button for setting whether or not to automatically raise the cloth presser foot 3 and release the workpiece when the sewing of the sewing pattern is completed. If the contact range of the presser foot lifting setting button B52 is touched, the setting of whether the automatic cloth presser foot 3 is lifted can be switched.

The thread cutting setting button B53 is a button for setting whether or not to automatically perform thread cutting by the thread cutting device when sewing of the sewing pattern is completed. If the contact range of the tangent setting button B53 is touched, the setting of the presence or absence of automatic tangent execution can be switched.

In the fourth region R4, a pattern image display frame W41 for displaying an image of a sewing pattern currently being selected and a base line position setting button B42 as an operation unit are arranged in order from the top.

A sewing pattern image composed of the pattern of the currently selected sewing pattern is displayed in the pattern image display box W41. The sewing pattern image is a dynamic image linked with the sewing action, and the needle dropping position in the left and right directions where the needle dropping is currently performed is displayed at the upper end part of the image. Further, a stitch formed at the needle falling position where the needle is subsequently dropped is displayed below the needle falling position. The sewing pattern image is composed of a dynamic image in which stitches of a stitch amount move upward every time one stitch is dropped.

The shape of the sewing pattern image is changed according to the set values of the stitch length and the stitch width described later.

The base line position setting button B42 has a circular contact range set therein, and icons serving as a content display section for displaying the content input from the base line position setting button B42 are displayed on the inner side thereof.

The base line is a reference line of the sewing pattern along the cloth feeding direction, and the needle swing amount at each needle drop position of the sewing pattern is determined using the base line as a reference.

If the baseline position setting button B42 is touched within the contact range, a baseline position input screen is displayed, and the baseline position can be set by an input operation on the screen or by an input operation by rotation of the dial 84.

A setting information display unit W42 as a content display unit that displays the content input from the base line position setting button B42 and the setting value thereof by character information is disposed at the outer lower portion of the button.

In the sixth region R6, a presser foot pressure display part W61 for numerically displaying a set value of a presser foot pressure generated by the cloth presser foot 3, a stitch width display part W62 for numerically displaying a set value of a lateral width of a needle swing of the sewing pattern, and a stitch length display part W63 for numerically displaying a set value of an interval (sewing pitch) in a cloth feeding direction for each needle are arranged in order from the left.

The presser foot pressure display unit W61, the stitch width display unit W62, and the stitch length display unit W63 are disposed so as to be immediately above the turn tables 83, 84, 85, respectively.

The presser foot pressure is set based on the input rotation amount of the turntable 83 detected by the encoder 831, and the input set value of the presser foot pressure is numerically displayed by the presser foot pressure display unit W61.

The stitch width is set based on the input rotation amount of the rotary table 84 detected by the encoder 841, and the input set value of the stitch width is numerically displayed by the stitch width display part W62.

The stitch length is set based on the input rotation amount of the rotary table 85 detected by the encoder 851, and the input set value of the stitch length is numerically displayed by the stitch length display part W63.

[ history storage processing ]

As described above, the control device 90 performs the process of storing the history of the sewing pattern data.

Fig. 7 is a display example of a history screen G2 for reading out sewing pattern data based on the history in the history storage unit 972.

At the upper end of the history screen G2, the support button B11, the setting button B12, the sewing button B13, the history button B14, and the door button B15 are arranged in this order from left to right, similarly to the input screen G1.

In the lower area, sewing pattern data recorded as a history is arranged and displayed in the upper and lower directions. The sewing pattern data are arranged so that a new history is located on the upper side as a history.

In addition, the upper limit of the number of sewing pattern data recorded as the history is determined, and if the number exceeds the upper limit, the sewing pattern data is deleted from the sewing pattern data of the old history.

On the left side of the history screen G2, a display frame W71 of the pattern number of the sewing pattern data recorded as the history is displayed, and on the right side of the screen, a display frame W72 of the sewing pattern image of the sewing pattern data recorded as the history is displayed.

If a touch operation is performed on the display frame W72 of an arbitrary sewing pattern image, the screen is switched to the input screen G1 of sewing pattern data recorded as the history. In the display state of the input screen G1, sewing based on the sewing pattern data recorded as the history can be executed by the start button 98.

Further, the setting of the sewing condition of the sewing pattern data recorded as the history may be changed from the input screen G1.

Next, a storage process of sewing pattern data as a history performed by the control device 90 will be described based on the flowchart of fig. 8.

The control device 90 determines whether or not the start button 98 is pressed (step S1), and if the start button 98 is pressed, sewing is performed based on the currently selected sewing pattern data (step S3).

Then, it is determined whether or not there is a change in the sewing pattern data currently selected (step S5).

In this determination, it is determined whether or not both the sewing pattern and the sewing condition are the same (step S5). That is, when any one of the change of the sewing pattern and the change of the setting of the sewing condition is performed by the change of the pattern number, it is determined that there is a change.

If it is determined that there is a change in the sewing pattern data (YES in step S5), the sewing pattern data on which the sewing has been performed in step S3 is stored as a new history in the history storage unit 972 (step S7), and the process returns to the pressing determination of the start button 98 in step S1.

If the sewing pattern data is not changed (step S5: NO), the history storage unit 972 does not store the sewing pattern data, and the process returns to the judgment of pressing the start button 98 in step S1.

[ technical effects in the embodiments of the invention ]

As described above, the controller 90 of the sewing machine 10 stores the sewing pattern data as a history in the history storage unit 972 of the data memory 97. In addition, when storing the sewing pattern data as a history, the control device 90 does not need the input operation of the recording command by the operator of the sewing machine, but automatically stores the data.

Therefore, the sewing pattern data stored as the history can be read out and sewing can be performed newly, and the sewing can be performed easily when the sewing performed before is performed again.

Further, since the condition stored in the history storage unit 972 of the data memory 97 as the history requires sewing pattern data that is sewn, the sewing pattern data that is not sewn can be excluded, and the amount of data stored in the history storage unit 972 can be reduced. Further, a memory with a small storage capacity can be used as the history storage unit 972.

Further, since the control device 90 stores the sewing pattern data as a history in the history storage unit 972 when the sewing pattern data on which sewing has been performed is changed, it is possible to avoid the same sewing pattern data being continuously stored in the history storage unit 972, and it is possible to further reduce the amount of data stored in the history storage unit 972. Further, a memory with a small storage capacity can be used as the history storage unit 972.

In particular, since the control device 90 stores the sewing pattern data as the history in the history storage unit 972 when any one of the sewing pattern and the sewing condition is changed from the sewing pattern data on which sewing is performed, it is not necessary to reset the sewing condition when sewing previously performed is performed again, and sewing can be performed easily and conveniently.

[ others ]

The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments. The details of the above embodiment can be changed as appropriate without departing from the scope of the invention.

For example, although the case where the control device 90 stores the sewing pattern data as the history when the sewing pattern data is changed has been exemplified, the control device may store the sewing pattern data as the history in the history storage unit 972 when the sewing pattern data is different from all the sewing pattern data stored in the history storage unit 972.

In this case, the amount of data stored in the history storage unit 972 can be further reduced. Further, as the history storage unit 972, a memory having a small storage capacity can be used.

The data memory 97 is not limited to a semiconductor memory such as an EEPROM or a flash memory, and all nonvolatile data storage means such as a magnetic or optical recording medium can be used.

Description of the reference numerals

10 Sewing machine (Sewing device)

80 display input device (input part)

90 control device

91 CPU

97 data memory (nonvolatile memory cell)

G1 input Picture

G2 resume Screen

Claims

1. A sewing device is characterized by comprising:

a sewing part which is sewed according to a sewing pattern;

an input part for setting sewing conditions with respect to the sewing patterns; and

a control device for controlling the motion of the sewing part to perform sewing based on the sewing pattern data with the determined sewing pattern and sewing condition,

the control device stores the sewing pattern data as a history in a nonvolatile storage unit, and can read the sewing pattern data stored as the history to execute sewing.

2. The sewing apparatus of claim 1,

the control device stores the sewing pattern data as a history in the storage unit when a sewing pattern is changed for the sewing pattern data subjected to sewing.

3. Sewing device as claimed in claim 1 or 2,

the control device stores the sewing pattern data as a history in the storage unit when the sewing condition is changed for the sewing pattern data subjected to sewing.