Sewing device

Abstract

The present application provides a sewing device capable of reproducing even a sewing condition set in relation to a sewing pattern. The sewing device has a sewing section that sews in accordance with a sewing pattern, an input section (80) that sets a sewing condition in relation to the sewing pattern, and a control device (90) that controls the operation of the sewing section so that sewing is performed based on sewing pattern data in which the sewing pattern and the sewing condition are determined, stores sewing pattern data in which sewing is performed as a history in a nonvolatile storage unit (97), and is capable of reading out and performing sewing on the sewing pattern data stored as the history.

Description

Technical Field

[0001] This invention relates to a sewing apparatus for sewing according to sewing pattern data. Background Technology

[0002] Existing sewing devices have a control device that stores sewing pattern data for performing specific stitches, patterns, etc., and the sewing pattern data is selected and parameters are changed by an input device such as a touch panel connected to the storage device (see, for example, Patent Document 1).

[0003] Patent Document 1: Japanese Patent Application Publication No. 9-290083

[0004] In the existing sewing device described above, even when various sewing conditions are set for the sewing pattern data, these conditions are not recorded. In order to reproduce the sewing pattern data in the next sewing operation, the sewing conditions must be set again. Summary of the Invention

[0005] The object of the present invention is to provide a sewing apparatus capable of reproducing sewing conditions, including those set with respect to the sewing pattern.

[0006] To solve the above-mentioned problems, the sewing apparatus is characterized by comprising: a sewing section that sews according to a sewing pattern; an input section that sets sewing conditions with respect to the sewing pattern; and a control device that controls the operation of the sewing section so that sewing is performed based on sewing pattern data with the sewing pattern and sewing conditions determined, wherein the control device stores the sewing pattern data as a history in a non-volatile storage unit, and is capable of reading the sewing pattern data stored as the history to perform sewing.

[0007] Alternatively, the control device may store the sewing pattern data as a history in the storage unit when it changes the sewing pattern data that has been sewn.

[0008] Alternatively, the control device may store the sewn pattern data as a history in the storage unit when it changes the sewing conditions for the sewn pattern data.

[0009] The effects of the invention

[0010] The present invention can be easily reproduced, including the sewing conditions set with respect to the sewing pattern. Attached Figure Description

[0011] Figure 1This is a front view of a sewing machine as an embodiment of the invention.

[0012] Figure 2 This is a left-side view of the sewing machine.

[0013] Figure 3 This is a functional block diagram representing the control system of a sewing machine.

[0014] Figure 4 This is an explanatory diagram showing an example of an input screen displayed on the display section of a display input device.

[0015] Figure 5 This is an explanatory diagram that uses imaginary lines to represent the division of multiple display areas on the input screen.

[0016] Figure 6 This is a front view of a list of sewing patterns set on the upper cover of the sewing machine arm.

[0017] Figure 7 This is an explanatory diagram showing an example of a resume screen displayed on the display section of a display input device.

[0018] Figure 8 This is a flowchart representing the resume storage and processing. Detailed Implementation

[0019] [Summary of the embodiments of the invention]

[0020] The sewing apparatus of the present invention will now be described with reference to the accompanying drawings. Figure 1 This is a front view of the sewing machine 10 as a sewing device. Figure 2 This is the left-side view. Figure 3 It is a functional block diagram representing the control system.

[0021] The sewing machine 10 includes: a needle up-and-down movement mechanism that uses a sewing machine motor 11 as a drive source to give the needle bar holding the needle 2 an up-and-down movement action; a lower feed mechanism that uses the power of the sewing machine motor 11 to feed the workpiece from below the needle plate through feed teeth; an upper feed mechanism that uses the power of the sewing machine motor 11 to feed the workpiece through an upper feed section 4 that contacts the workpiece from above; a presser foot 3 that presses the workpiece on the needle plate from above; and a needle oscillation mechanism that causes the needle bar to move up and down. The sewing machine 10 can move arbitrarily in a direction orthogonal to the fabric feed direction; a thread adjuster device that applies tension to the upper thread passing through the needle 2; a take-up lever that lifts the upper thread; a thread cutter that cuts the sewing ends of the upper and lower threads; a display input device 80, which displays various sewing-related information and accepts various setting inputs; a control device 90 that controls the operation of each structure of the sewing machine 10; and a sewing machine frame 20 that houses or supports each structure of the sewing machine 10.

[0022] In the following description, the structures of the above-mentioned needle up-and-down movement mechanism, lower feed mechanism, upper feed mechanism, fabric presser foot 3, kettle mechanism, needle swing mechanism, thread adjuster device, thread take-up lever, and thread cutting device are collectively referred to as the "sewing section".

[0023] Furthermore, in the following description, the horizontal direction parallel to the direction in which the sewn work is conveyed by the lower feed mechanism is defined as the X-axis direction, the downstream side of the feed direction of the sewn work is defined as "front," and the upstream side of the feed direction is defined as "rear." Additionally, the horizontal direction orthogonal to the X-axis direction is defined as the Y-axis direction, the left-hand side facing forward is defined as "left," and the right-hand side is defined as "right." Furthermore, the direction orthogonal to both the X-axis and Y-axis directions is defined as the Z-axis direction, one of which is defined as "up," and the other as "down."

[0024] The sewing machine frame 20 includes: a sewing machine base portion 21 extending along the Y-axis; a longitudinal body portion 22 erected from the right end of the sewing machine base portion 21; and a sewing machine arm portion 23 extending to the left from the upper end of the longitudinal body portion 22 along the Y-axis.

[0025] The needle bar that holds the sewing needle 2, the fabric presser foot 3, and the upper feed section 4 are supported on the lower left side of the sewing machine arm 23.

[0026] A rectangular display screen of a display input device 80 is disposed on the front surface side of the longitudinal body section 22. The front surface of the longitudinal body section 22 and the display screen of the display input device 80, which are coplanar with the front surface, are composed of inclined surfaces that slightly tilt the upper and left sides of the X-Z plane backward.

[0027] The display screen of the display input device 80 is tilted in a way that makes it easy for the operator of the sewing machine, who is working from behind relative to the needle drop position of the sewing machine 10, to observe the screen.

[0028] The upper surface of the sewing machine base 21 is a smooth surface along the X-Y plane, and the needle plate (not shown) is coplanar with the upper surface of the sewing machine base 21 and is positioned at the needle drop position of the needle 2.

[0029] Since the needle up-and-down movement mechanism is the same as known mechanisms, detailed description is omitted. The needle up-and-down movement mechanism uses the sewing machine motor 11 built into the sewing machine as the drive source and can move the needle bar up and down through a crank mechanism.

[0030] Since the needle oscillation mechanism is the same as known mechanisms, detailed description is omitted. The needle oscillation mechanism includes: a support frame that supports the needle bar so that it can move up and down; and a needle oscillation motor 15 that moves the front end of the needle bar arbitrarily along the Y-axis direction via the support frame.

[0031] Since the spool mechanism is the same as known mechanisms, detailed description is omitted. The spool mechanism has a spool that is powered by the sewing machine motor 11 and rotates on the underside of the needle plate. The descending needle 2 catches the loop of the upper thread and wraps it with the lower thread to form a stitch on the workpiece.

[0032] The take-up lever is powered by the sewing machine motor 11 and moves up and down in sync with the needle drop. An upper thread is positioned on the take-up lever facing the needle, and the machine lifts the upper thread to secure the stitch as the upper and lower threads form a stitch.

[0033] Since the lower feed mechanism is the same as known mechanisms, detailed description is omitted. The lower feed mechanism has feed teeth that move in and out of the opening of the needle plate. The feed teeth are supplied with reciprocating motion in the X-axis direction and reciprocating motion in the Z-axis direction, which are taken from the sewing machine motor 11. As a result, the feed teeth perform a long circular motion about the Y-axis along the X-axis direction. Moreover, when the feed teeth pass through the upper part of the long circular motion trajectory, the tooth tip protrudes upward from the opening of the needle plate and moves forward, conveying the workpiece on the needle plate forward.

[0034] In addition, the lower feed mechanism has a lower feed adjustment motor 12, which adjusts the stroke amplitude 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 sewn workpiece generated by the feed teeth.

[0035] Since the upward feed mechanism is the same as known mechanisms, detailed description is omitted. The upward feed mechanism has an upward feed section that feeds the workpiece from above the needle plate, contacting it at the needle drop position. The upward feed section receives reciprocating motion in the X-axis and Z-axis directions from the sewing machine motor 11. As a result, the upward feed section performs a long circular motion about the Y-axis along the X-axis. Furthermore, as the upward feed section passes the lower part of its long circular motion trajectory, its front end moves forward along the upper surface of the needle plate, conveying the workpiece on the needle plate forward.

[0036] In addition, the upper feed mechanism has an upper feed adjustment motor 13, which adjusts the stroke range 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 sewn workpiece generated by the feed teeth.

[0037] Furthermore, the feed unit can be manually switched between a retracted position (no feed) and a feed position (feeding), allowing selection of whether or not feed is being performed. It can be configured to include a sensor that detects whether the feed unit is in the retracted or feed position, and inputs its detection signal to the control device 90.

[0038] The fabric presser foot 3 is positioned above the needle plate at the needle drop position, allowing it to press down on the workpiece from above. The fabric presser foot 3 is mounted on the lower end of a presser foot bar that hangs down from the lower left end of the sewing machine arm 23. The presser foot bar is spring-loaded within the sewing machine arm 23, and the fabric presser foot 3 presses towards the needle plate, applying presser foot pressure to the workpiece.

[0039] The fabric presser foot 3 comes in several types, and can be changed to the appropriate fabric presser foot 3 according to the type of sewing.

[0040] Additionally, the presser foot bar allows the fabric presser foot 3 to retract upwards via a manual lever (not shown) or the presser foot motor 14. Furthermore, the presser foot motor 14 allows for arbitrary adjustment of the presser foot pressure of the fabric presser foot.

[0041] Since the wire adjuster device is the same as known mechanisms, detailed description is omitted. The wire adjuster device is not illustrated, but it clamps the upper wire midway through its path, applying tension to the upper wire through clamping pressure. The clamping pressure can be adjusted via the wire adjuster solenoid 16, thereby allowing arbitrary wire tension to be applied to the upper wire.

[0042] Since the tangling device is the same as known mechanisms, detailed description is omitted. The tangling device has a cutter that operates between the needle plate and the vessel mechanism to cut the upper and lower threads. The tangling device has a tangential solenoid 17 for operating the cutter.

[0043] The display input device 80 includes: a display section 81 disposed on the front surface side of the longitudinal body section 22 of the sewing machine frame 20; a touch panel 82 disposed overlapping the surface side of the display section 81; and three turntables 83, 84, and 85 arranged approximately in the Y-axis direction on the immediate lower side of the display section 81.

[0044] The display unit 81 consists of a liquid crystal display and an organic EL (electroluminescence) display. The display is controlled by the control device 90 to show the input screen G1, which will be described later. The touch panel 82 functions as an input detection unit, detecting the operator's touch input position and the input operation relative to the input screen G1.

[0045] Each of the three turntables 83, 84, and 85 has a built-in encoder 831, 841, and 851. The operator's rotation input is input to the control device 90 through the encoders 831, 841, and 851.

[0046] [Sewing machine control system]

[0047] Next, based on Figure 3 The structure of the control system of the sewing machine 10 is described.

[0048] The control device 90 of the sewing machine 10 includes: a ROM 92, which stores various programs for performing various controls and processes described later, sewing pattern data for performing various sewing, and other various setting data; a CPU 91, which executes various programs in the ROM 92; a RAM 93, which becomes the working area when various programs are executed; a data memory 97, which is a non-volatile storage unit; and an input / output interface 94 and an output interface 95, which are connected to the CPU 91, ROM 92, RAM 93, and data memory 97 via a bus.

[0049] The output interface 95 is connected via drive circuits 11a, 12a, 13a, 14a, 15a, 16a, and 17a 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 oscillation motor 15, a thread adjuster solenoid 16, and a tangent solenoid 17. The CPU 91 is capable of controlling their movements.

[0050] The input / output interface 94 is connected to the various components of the display input device 80, the power switch 96, and the start button 98.

[0051] The sewing machine 10 can control the forward and backward feed amount generated by the lower feed adjustment motor 12 and the left and right needle swing amount generated by the needle swing motor 15 through the control device 90, so as to drop the needle at any position relative to the workpiece in the X-Y plane.

[0052] Multiple sewing pattern data are stored in the data memory 97. For example... Figure 6 As shown, inside the openable top cover 231 of the sewing machine arm 23, there is a list display 232 showing the pre-prepared sewing patterns and their pattern numbers.

[0053] The sewing pattern data record contains multiple needle drop positions in the X-Y plane corresponding to the sewing pattern, as well as the settings of sewing conditions during the sewing of the sewing pattern.

[0054] The sewing conditions are settings related to "stop sewing at the beginning of the sewing", "stop sewing at the end of the sewing", "thread tension", "baseline position of the sewing pattern", "up feed", "presser foot lift", "cutting", "presser foot pressure", "stitch width", and "stitch length". These sewing conditions can be changed on the input screen G1, which will be described later.

[0055] The aforementioned data storage unit 97 has an initial data storage unit 971 and a history storage unit 972. The initial data storage unit 971 stores sewing pattern data related to the sewing patterns of each of the overview displays 232. The sewing pattern data stored in the initial data storage unit 971 all have initial setting data (default data) determined with respect to sewing conditions.

[0056] On the other hand, in the record storage unit 972, the sewing pattern data of the sewing pattern that was actually sewn due to changes in sewing conditions is stored.

[0057] The control device 90 can read the sewing pattern data in the initial data storage unit 971 or the history storage unit 972, and control the down feed adjustment motor 12 and the needle swing motor 15 to perform sewing that forms a stitch corresponding to the sewing pattern.

[0058] [Display control of display input device]

[0059] The display control of the display input device 80 by the control device 90 described above will be explained. The display control and input processing of the display input device 80 described below are all performed by the CPU 91 of the control device 90 executing the program in the ROM 92.

[0060] Figure 4 This is an explanatory diagram showing an example of the input screen G1 displayed on the display unit 81 of the display input device 80. Figure 5 This is an explanatory diagram illustrating the division of multiple display areas of the input screen G1 using imaginary lines. In the explanatory diagrams showing these display examples, as well as other display examples described later, the top, bottom, left, and right sides of the paper roughly correspond to the top, bottom, left, and right sides of the sewing machine 10.

[0061] As shown in the figure, the input screen G1 is a long rectangle, divided into a first area R1 extending across the upper left and right width of the screen, a second area R2 extending across the lower left and right width below it, third to fifth areas R3 to R5 arranged below it, and a sixth area R6 extending across the lower left and right width of the screen.

[0062] The third to fifth regions, R3 to R5, are rectangular regions that divide the area between the second region, R2, and the sixth region, R6, into three parts on the left and right sides. The left side becomes the third region, R3; the center becomes the fourth region, R4; and the right side becomes the fifth region, R5.

[0063] Regions 3-5, R3-R5 Figure 5 In the example, the area is divided into three equal parts in the left and right directions, but it is not limited to this; the ratios can be increased or decreased. For example, the width of the central fourth region R4 can be changed to be between 1 / 4 and 1 / 2 of the overall width, and the widths of the third region R3 and the fifth region R5 on both sides can be set to be equal in the left and right directions.

[0064] In the first area R1, the support button B11, setting button B12, sewing button B13, resume button B14, and portal button B15, which are composed of strings for switching between various input screens, are arranged in order from left to right.

[0065] These buttons B11 to B15 can be input via touch operation at their respective positions. Furthermore, by sliding the first area R1 left or right, the positions of each button B11 to B15 can be scrolled.

[0066] The support button B11 is used to switch the display to the support screen, which displays the operation manual of the sewing machine 10, etc.

[0067] The setting button B12 is used to switch the display to the setting screen, which is used to make settings related to the surrounding environment of the sewing machine 10, such as the brightness of the work light (not shown) and the volume of the speaker (not shown).

[0068] Sewing button B13 is used to switch the display to Figure 4 The input screen G1 has a button. This input screen G1 allows for various settings related to sewing.

[0069] The resume button B14 is used to switch the display to the resume screen G2, which will be described later. Resume screen G2 is an input screen for recalling the sewing pattern data and related settings from previous sewing attempts, showing multiple sewing patterns. Resume screen G2 will be described later.

[0070] The portal button B15 is used to switch the display to a browser screen that connects to the portal website of the sewing machine 10 via a network line.

[0071] In the second area R2, the fabric presser foot candidate display box W21, which consists of graphics and strings, the sewing pattern selection button B21, which serves as an operation unit for switching between various display screens, the sewing pattern setting button B22, and the cycle selection button B23 are arranged sequentially from left to right.

[0072] In the fabric presser foot candidate display box W21, the types of fabric presser feet 3 suitable for the currently selected sewing pattern are displayed. For example, in Figure 4 In the example, graphic and textual information is displayed showing the compatibility of fabric presser feet A and B with the selected sewing pattern.

[0073] The sewing pattern selection button B21 has a roughly rectangular contact area. Touching this contact area will display a screen that switches to the sewing pattern selection screen. From this selection screen, one can select the default sewing pattern data stored in the initial data storage unit 971 of the aforementioned data memory 97.

[0074] As mentioned above, each sewing pattern is assigned a pattern number. If a pattern number is selected and confirmed on the selection screen, the selected pattern number is displayed within the approximately rectangular contact area of ​​the selection button B21.

[0075] The sewing pattern setting button B22 has a circular contact area, with an icon indicating that it is a setting button displayed inside. Touching the contact area of ​​the setting button B22 will switch to the specified setting screen. From this setting screen, settings related to the sewing pattern other than those set by the buttons B31 to B53 described later can be made. For example, pattern editing such as flipping the sewing pattern vertically or horizontally can be performed from this setting screen.

[0076] The cycle selection button B23 has a circular contact area, inside which an icon indicating it is a cycle selection button is displayed. Touching the contact area of ​​the cycle selection button B23 allows you to select between single-shot and continuous sewing. Single-shot sewing involves sewing one stitch pattern, while continuous sewing involves repeating the same stitch. When single-shot sewing is selected for the cycle selection button B23, the number "1" is displayed inside the icon. When repeated sewing is selected, the number inside the icon is deleted.

[0077] In the third area R3 and the fifth area R5, three buttons are arranged on each side as the operation section. This operation section is used to set the sewing pattern.

[0078] In the third area R3, the sewing start setting button B31, the thread tension setting button B32, and the sewing end setting button B33 are arranged sequentially from top to bottom.

[0079] In the fifth zone R5, the feed setting button B51, the presser foot lift setting button B52, and the tangent setting button B53 are arranged sequentially from top to bottom.

[0080] These various setting buttons B31, B32, B33, B51, B52, and B53 are designed with circular contact areas, and icons for content display sections are displayed on the inner side of these sections. These content display sections show the content entered from each setting button.

[0081] In addition, on the lower outer side of each of the setting buttons B31, B32, B33, B51, B52, and B53, there are setting information display units W31, W32, W33, W51, W52, and W53, which serve as content display units. They display the content input from each setting button and its setting value or setting status through text information.

[0082] The sewing start setting button B31 is used to select whether to stop sewing at the beginning of the sewing process and the type of stop sewing. For example, by repeatedly touching the contact area of ​​the sewing start setting button B31, the settings of reversing sewing, stopping sewing with piping, and not stopping sewing can be switched.

[0083] The tension setting button B32 is used to arbitrarily set the tension of the wire regulator device generated by the wire regulator solenoid 16. When the tension setting button B32 is touched within its contact range, the tension input screen is displayed, and the tension can be set by inputting through the screen or by rotating the dial 84.

[0084] The sewing end setting button B33 is used to select whether to stop sewing at the end of the sewing and the type of stop sewing. For example, by repeatedly touching the contact area of ​​the sewing end setting button B33, the settings of resuming sewing, stopping sewing with piping, and not stopping sewing can be switched.

[0085] The feed setting button B51 is used to set whether the feed is executed by the feed unit 4 and the feed amount (the difference between the feed amount and the feed amount of the feed tooth). Touching the feed setting button B51 within its contact range toggles the setting of whether the feed is executed or not. Furthermore, when the feed is executed, an input screen for the feed amount is displayed, allowing the feed amount to be set via input to this screen or by rotating the dial 84.

[0086] The presser foot lift setting button B52 is used to set whether the fabric presser foot 3 is automatically raised to release the sewn workpiece when the sewing pattern is finished. By touching the contact area of ​​the presser foot lift setting button B52, the setting of whether the automatic raising of the fabric presser foot 3 is performed can be toggled.

[0087] The thread-cutting setting button B53 is used to set whether the thread-cutting device automatically performs the cutting at the end of the sewing pattern. By touching the contact area of ​​the thread-cutting setting button B53, the setting of whether automatic thread cutting is performed can be toggled.

[0088] In the fourth area R4, the pattern image display box W41, which displays the image of the currently selected sewing pattern, and the baseline position setting button B42, which serves as the operation unit, are arranged sequentially from top to bottom.

[0089] The pattern image display frame W41 displays a sewing pattern image composed of the graphics of the currently selected sewing pattern. This sewing pattern image is a dynamic image linked to the sewing action, displaying the needle position in the left-right direction at the top of the image. Additionally, below the needle position, the stitch formed by subsequent needle positions is displayed. This sewing pattern image consists of a dynamic image of one stitch moving upwards with each stitch.

[0090] In addition, the shape of the sewing pattern image varies accordingly with the set values ​​of stitch length and stitch width described later.

[0091] The baseline position setting button B42 has a circular contact area, and an icon for a content display section is displayed on its inner side. This content display section displays the content input from the baseline position setting button B42.

[0092] The baseline is the reference line of the sewing pattern along the fabric feed direction. The amount of needle swing at each needle drop position of the sewing pattern is determined by using this baseline as a reference.

[0093] If the baseline position setting button B42 is touched within its contact range, an input screen for the baseline position is displayed, and the baseline position can be set by inputting to the screen or by rotating the dial 84.

[0094] A setting information display unit W42, which serves as a content display unit, is located on the lower outer side of the baseline position setting button B42. This content display unit displays the content input from the button and its setting value through text information.

[0095] In the sixth area R6, a presser foot pressure display unit W61, which displays the set value of the presser foot pressure generated by the fabric presser foot 3, a stitch width display unit W62, which displays the set value of the left and right direction amplitude of the needle swing of the sewing pattern, and a stitch length display unit W63, which displays the set value of the interval (sewing spacing) of the fabric feed direction for each stitch, are arranged sequentially from left to right.

[0096] The presser foot pressure display unit W61, the stitch width display unit W62, and the stitch length display unit W63 are each configured to be positioned close to the top of the turntables 83, 84, and 85.

[0097] The presser foot pressure is set based on the input rotation amount of the turntable 83 detected by the encoder 831, and the set value of the input presser foot pressure is displayed numerically by the presser foot pressure display unit W61.

[0098] The line width is set based on the input rotation amount of the turntable 84 detected by the encoder 841, and the input line width setting value is displayed numerically by the line width display unit W62.

[0099] The stitch length is set based on the input rotation amount of the turntable 85 detected by the encoder 851, and the input stitch length setting value is displayed numerically by the stitch length display unit W63.

[0100] [Resume Storage and Processing]

[0101] As described above, the control device 90 performs history storage processing on the sewing pattern data.

[0102] Figure 7 This is an example of displaying the resume screen G2, which reads the sewing pattern data of the resume based on the resume stored in the resume storage unit 972.

[0103] At the top of the resume screen G2, similar to the input screen G1, the support button B11, setting button B12, sewing button B13, resume button B14, and portal button B15 are arranged from left to right.

[0104] Furthermore, in the area below, the sewing pattern data recorded as part of the resume is displayed vertically. This sewing pattern data is configured such that new resumes are placed on top.

[0105] In addition, there is a fixed upper limit to the number of sewing pattern data that can be stored as part of a resume. If the number of sewing pattern data exceeds this limit, it will be deleted from the sewing pattern data of the old resume.

[0106] On the left side of the resume screen G2, a display box W71 shows the pattern number of the sewing pattern data recorded as part of the resume, and on the right side of the screen, a display box W72 shows the image of the sewing pattern data recorded as part of the resume.

[0107] Furthermore, if a touch operation is performed on the display frame W72 for any sewing pattern image, it switches to the input screen G1, which is the sewing pattern data recorded as the resume. In the display state of the input screen G1, sewing based on the sewing pattern data recorded as the resume can be performed by pressing the start button 98.

[0108] Additionally, the sewing conditions settings for the sewing pattern data recorded as a resume can be changed from the input screen G1.

[0109] Next, based on Figure 8 The flowchart illustrates the storage and processing of sewing pattern data as a record performed by the control device 90.

[0110] The control device 90 determines whether the start button 98 has been pressed (step S1). If the start button 98 has been pressed, sewing is performed based on the currently selected sewing pattern data (step S3).

[0111] Then, for the currently selected sewing pattern data, determine whether there are any changes (step S5).

[0112] In this determination, it is determined whether the sewing pattern and sewing conditions are the same (step S5). That is, if either the sewing pattern or the sewing conditions are changed due to a change in the pattern number, it is determined that a change exists.

[0113] Furthermore, if it is determined that there is a change in the sewing pattern data (step S5: YES), the sewing pattern data that was sewn in step S3 is stored as a new history in the history storage unit 972 (step S7), and the processing is returned to the start button 98 press determination in step S1.

[0114] In addition, if there is no change to the sewing pattern data (step S5: NO), the sewing pattern data is not stored in the history storage unit 972, and the process returns to the start button 98 press determination in step S1.

[0115] [Technical Effects of the Embodiments of the Invention]

[0116] As described above, the control device 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. Furthermore, when storing the sewing pattern data as a history, the control device 90 automatically stores it without requiring the input of recording instructions from the sewing machine operator.

[0117] Therefore, it is possible to read the sewing pattern data stored as a history and sew it anew, making it easy to perform previously performed sewing again.

[0118] Furthermore, the requirement for the resume storage unit 972, which stores resume data as resume data in the data memory 97, is that the data must be sewn. Therefore, sewn pattern data that has not been sewn can be excluded, reducing the amount of data stored in the resume storage unit 972. In addition, the resume storage unit 972 can utilize a memory with a small storage capacity.

[0119] Furthermore, when the control device 90 modifies the sewing pattern data that has been sewn, it stores the sewing pattern data as a history in the history storage unit 972. This prevents the same sewing pattern data from being stored consecutively in the history storage unit 972, further reducing the amount of data stored in the history storage unit 972. Additionally, the history storage unit 972 can utilize a memory with a small storage capacity.

[0120] In particular, when the control device 90 changes either the sewing pattern or the sewing conditions from the sewing pattern data that has been sewn, it stores the sewing pattern data as a history in the history storage unit 972. Therefore, when sewing that has been previously performed is performed again, there is no need to reset the sewing conditions, and sewing can be performed easily and conveniently.

[0121] [other]

[0122] The embodiments of the present invention have been described above, but the present invention is not limited to the embodiments described above. The details shown in the above embodiments can be appropriately changed without departing from the spirit of the invention.

[0123] For example, the example shown is that the control device 90 saves the sewing pattern data as a history when a change is applied to the sewing pattern data that has been sewn. However, it is also possible to perform the following processing on this basis: if the sewing pattern data that has been sewn is different from all the sewing pattern data stored in the history storage unit 972, the sewing pattern data that has been sewn is stored as a history in the history storage unit 972.

[0124] In this case, the amount of data stored in the history storage unit 972 can be further reduced. Furthermore, the history storage unit 972 can utilize a memory with a small storage capacity.

[0125] Furthermore, the data storage device 97 is not limited to semiconductor memories such as EEPROM and flash memory, but can utilize all non-volatile data storage units such as magnetic or optical recording media.

[0126] Explanation of the label

[0127] 10. Sewing machine (sewing device)

[0128] 80 Display input device (input section)

[0129] 90 Control device

[0130] 91 CPU

[0131] 97. Data Memory (Non-volatile Storage Unit)

[0132] G1 Input Screen

[0133] G2 resume screen

Claims

1. A sewing device, characterized in that, have: The sewing section sews according to the sewing pattern; The input unit sets the sewing-related settings, i.e., sewing conditions, based on the sewing pattern. as well as A control device controls the movement of the sewing part so that sewing is performed based on sewing pattern data that includes the sewing pattern and sewing conditions. When the control device changes the sewing conditions for the sewing pattern data that has been sewn, it stores the sewing pattern data as a history in a non-volatile storage unit. The input section displays a list of multiple sewing pattern data stored as a resume, and... The control device can read the sewing pattern data stored as the history and perform sewing based on the sewing pattern data selected from a plurality of sewing pattern data displayed in a list.

Images