JP2005312796A - Control device of sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control device of a sewing machine to perform the proper sewing. <P>SOLUTION: The control device 10 of the sewing machine forms stitches according to sewing data including various parameter related to conditions for sewing. The control device 10 comprises a parameter specifying means (a control panel 20) for specifying arbitrary parameter among various parameter, a threshold setting means (the control panel 20) for setting a threshold for dividing the range of numeric values of the specified parameter into at least two groups, a division determining means (a CPU 11) for determining which group divided by the set threshold the specified parameter value in the sewing data belongs, and an announcement control means (the CPU 11) for controlling the announcement according to the result of determination by the division determining means before forming stitches according to the sewing data. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a control device for a sewing machine that forms a stitch according to sewing data including various parameters.

  A conventional sewing machine control device reads sewing data consisting of a number of patterns in which various parameters relating to sewing are set in advance from an external medium or the like, displays the contents of these sewing data so that they can be referred to from the operation panel, and performs desired sewing. Sewing data suitable for the sewing machine is selected, and operation control of each drive unit of the sewing machine is performed according to the selected sewing data (see, for example, Patent Document 1).

The sewing data can be changed in the contents of various parameters, such as set values. At that time, setting update input is performed from the operation panel. For the sewing data for which the parameter contents have been updated, the data is rewritten to the external media. At the next sewing, the sewing machine is controlled according to the sewing data reflecting the updated contents. It was supposed to be.
Japanese Patent Laid-Open No. 2002-143854

However, in recent sewing machines, the number of types of various parameters set in the sewing data has increased, and the contents of these sewing data are similar for each sewing data or when there are few differences. In this case, it is difficult to distinguish each piece of sewing data, and erroneous sewing data may be selected.
As a result, there was a problem that sewing different from the schedule was performed, and the sewing product was no longer usable and was discarded, resulting in wasted material and time.
Also, in sewing machines that are used with various attachments replaced during sewing, unexpected operations are performed with different sewing data, resulting in collisions and strikes, and damage to the attachment and its surroundings. There was also the inconvenience that there was a case.
Even when the sewing data is properly selected, if there is an error in the correction of the parameters, there is a disadvantage that the sewing material is wasted and each part is damaged.

  The object of the present invention is to avoid improper sewing.

  According to a first aspect of the present invention, there is provided a parameter designating unit for designating an arbitrary parameter from among various parameters in a control device for a sewing machine that forms a stitch according to sewing data including various parameters related to sewing conditions. Threshold setting means for setting a threshold value for dividing the numerical range of the designated parameter into at least two or more, and any division in which the value of the designated parameter in the sewing data is divided by the set threshold value And a notification control unit that performs notification control according to a determination result by the category determination unit before forming a stitch according to the sewing data.

In the above configuration, a threshold value is set for a specified parameter included in the sewing data, and a setting range of the parameter is divided by the threshold value.
On the other hand, it is determined to which category the set value of the designated parameter included in the sewing data to be sewn belongs, and at the time of sewing, notification control is performed according to that category. As a result, by appropriately selecting the threshold value, it is recognized that the specific set value is set for the specific parameter, and a determination is made as to whether or not the sewing data selected by the recognition is appropriate. Errors are suppressed.

The invention described in claim 2 has the same configuration as that of the invention described in claim 1, and the notification control means performs notification control when the classification determined by the classification determination means is a classification specified in advance. It is configured to do.
In the above configuration, by setting the threshold appropriately, it is possible to set a specific category that should be particularly alerted, and since the notification control is performed when the set value of the designated parameter is a specific category, A specific set value is recognized in a specific parameter, and a determination is made as to whether or not the sewing data selected by the recognition is appropriate, and an error in selecting the sewing data is suppressed.

The invention according to claim 3 has the same configuration as that of the invention according to claim 1, and the notification control means is configured such that the classification determined by the classification determination means is the classification determined by the classification determination means at the previous sewing. When different, it adopts a configuration in which notification control is performed.
In the above configuration, since the notification control is performed when the category to which the set value of the predetermined parameter belongs is different from the category in the previous sewing, it is necessary to call attention when a large fluctuation exceeding the range of the set category occurs Can do.

  According to a fourth aspect of the present invention, there is provided a control device for a sewing machine that forms stitches according to sewing data including various parameters related to sewing conditions, and a threshold value for dividing a numerical range of a predetermined parameter into at least two or more. Threshold setting means for setting, classification determination means for determining which value of a predetermined parameter in the sewing data belongs to which section divided by the set threshold value, and before forming a stitch according to the sewing data A notification control unit that performs notification control according to a determination result by the category determination unit, and the notification control unit performs notification control when the category determined by the category determination unit is a previously specified category. Notification is made when the first notification control means to be performed and the classification determined by the classification determination means are different from the classification determined by the classification determination means at the previous sewing. It consists of a second notification control means for control, and a notification selection means for selecting whether to perform the notification control based on any of the first and second notification control means, and employs a configuration that.

In the above configuration, a threshold is set for a predetermined parameter included in the sewing data, and the setting range of the parameter is divided by the threshold.
Here, the threshold value setting may be performed only on a predetermined parameter in the entire parameters, or on a parameter selected by providing a parameter selection unit as in the first aspect of the invention. It is also good.
On the other hand, it is determined which set value of a predetermined parameter included in the sewing data to be sewn belongs to, and at the time of sewing, notification control is performed according to the category. Such notification control is performed according to the notification control selected from the first notification control and the second notification control.
As a result, by appropriately selecting the threshold value, it is recognized whether the set value for a specific parameter is in the same category as the previous value, and whether the sewing data selected by the recognition is appropriate or not. In addition to arousing judgment, errors in selecting sewing data are suppressed.

The invention described in claim 5 has the same configuration as that of the invention described in claim 4, and the notification control means can also select not to execute the notification control.
In the above-described configuration, when the notification is obviously unnecessary, for example, when there is no range to be avoided for the value of the designated parameter, or when performing sewing that is clearly different from the previous sewing, any notification control is performed. Is also selected not to execute.

In the first aspect of the invention, since the notification control is performed according to the category to which the set value of the designated parameter included in the sewing data belongs, the set value for the specific parameter is the threshold value by appropriately setting the threshold value. It is recognized that it is within a specified specific range, and it is possible to easily determine whether or not the sewing data selected by the recognition is appropriate, and to suppress an error in selecting the sewing data. Accordingly, it is possible to suppress an error in selecting sewing data and easily suppress the waste of the sewing product, the attachment, and the surrounding damage.
Further, the above configuration makes it easy to determine whether the change value is appropriate not only when selecting sewing data is wrong, but also when the set value is changed for a specific parameter in the sewing data. It is possible to perform proper sewing.

  The invention according to claim 2 can set a specific category that should be particularly alerted by appropriately setting a threshold value, and perform notification control when the set value of the designated parameter is a specific category. Therefore, it is more reliably recognized that a specific set value is set for a specific parameter, and a determination is made as to whether or not the sewing data selected by the recognition is appropriate. It is possible to suppress errors in parameter settings and perform more appropriate sewing.

  According to the third aspect of the invention, since the notification control is performed when the category to which the set value of the predetermined parameter belongs is different from the category in the previous sewing, an error in selecting sewing data or an error in setting each parameter occurs. When a large change from the previous time when it is predicted that the probability of being performed is high is generated, attention can be drawn and more appropriate sewing can be performed.

In the invention according to claim 4, by appropriately selecting a threshold value, it is recognized whether the set value for a specific parameter is a classification or the same classification as the previous time, and the sewing data selected by the recognition is A determination of whether or not it is appropriate is made, and an error in selecting sewing data is suppressed, so that waste of the sewing product, attachment, and damage around the sewing product can be easily suppressed.
Furthermore, it is possible to select whether notification control is performed when the set value of the designated parameter is a predetermined section or whether notification control is performed when it does not match the previous sewing data section. Therefore, it is possible to select appropriate notification control, and it is possible to perform more appropriate sewing.

  According to the fifth aspect of the present invention, since it is possible to select not to perform the notification control, the notification control can be omitted when the notification is unnecessary, and the complexity of processing is simplified and the notification control is omitted. Can be eliminated.

(First embodiment)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing configurations of a sewing machine control apparatus 10 and a buttonhole sewing machine 100 controlled by the sewing machine.
The buttonhole sewing machine 100 includes a needle driving unit that drives the sewing needle up and down, a cloth pressing unit that presses the cloth that is the sewing object, a moving unit that relatively moves the sewing needle and the cloth pressing unit, A knife mechanism for forming a button hole is provided.

The needle driving means includes a crank mechanism driven by the sewing machine motor 132 and a needle bar to which the vertical driving force is transmitted by the crank mechanism, and a sewing needle is held at the lower end of the needle bar.
The needle bar holds a sewing needle at its lower end, and the needle bar moves the sewing needle at its lower end in the X-axis direction (a direction perpendicular to the longitudinal direction of the machine bed and parallel to the upper surface of the needle plate). ) Is supported by the moving means so as to be swingable along the head.
In other words, the needle driving means drives the sewing needle up and down at the same cycle as the output rotation speed of the sewing machine motor 132 and swings the sewing needle along the X-axis direction by the moving means described later. Is possible.

The cloth presser means includes a cloth holding plate placed on the upper surface of the sewing machine bed so as to be movable in the front-rear direction, a cloth holding frame for holding the cloth from above the cloth holding plate, and a press-up solenoid for raising and lowering the cloth holding frame. 144.
The cloth presser is moved downward by a press-up solenoid 144 to hold the cloth on the cloth holding plate, and the cloth holding plate is moved in the Y-axis direction (the direction parallel to the longitudinal direction of the sewing machine bed by the moving means). It is moved and positioned in a direction parallel to the upper surface of the plate. Therefore, the fabric can be moved and positioned in the Y-axis direction.
Further, both the cloth presser and the cloth holding plate are formed with through holes in the vertical direction, and sewing with a sewing needle and button hole formation with a knife mechanism are performed within the range of the through holes.

The moving means includes a feed motor 153 including a stepping motor that moves the cloth holding plate in the Y-axis direction via a pinion-rack mechanism, and a needle that swings the needle bar at an arbitrary angle via a known swing mechanism. And a swing motor 157.
That is, the moving means can position the sewing needle along the X-axis direction by the needle swing motor 157 via the needle bar, while positioning the cloth holding plate along the Y-axis direction by the feed motor 153. Therefore, the sewing needle can be dropped at an arbitrary position with respect to the plane of the cloth held by the cloth holding plate.

The knife mechanism includes a knife that forms a button hole in the cloth at a predetermined position with respect to the cloth held by the cloth holding plate, and a knife drive solenoid 174 that moves the knife downward.
Since the cloth held on the cloth holding plate can be moved and positioned along the Y-axis direction by the moving means described above, the button hole forming position can be positioned in the Y-axis direction.

(Overall configuration of sewing machine control device)
The control device 10 controls the rotational speed of the sewing machine motor 132, the drive timing and swing width of the needle swing motor 157, the amount of cloth fed by the feed motor 153, the fabric presser frame up / down switching, and the lowering timing of the knife 171.
The control device 10 includes a ROM 12 that stores various control programs for performing sewing control of the sewing machine 100 according to various commands, sewing parameters, and other control data, and a control that executes various programs and performs various processes and controls. CPU 11 as means, RAM 13 that temporarily stores various programs and data, and a work area, EEPROM 15 that stores various setting data in a rewritable manner, and external control target And an operation panel 20 for inputting predetermined commands to the CPU 11 and performing predetermined display according to the control of the CPU 11.
The control device 10 performs the control of the hole sewing based on the sewing data by the CPU 11 using the RAM 13 as a work area based on various programs stored in the ROM 12 and a plurality of sewing data stored in the EEPROM 15.

A sewing machine motor 132 is connected to the I / O interface 14 through a sewing machine motor driver 132a. The sewing machine motor driver 132a is connected to an encoder (not shown) that detects the number of rotations of the sewing machine motor 132 so that feedback control is possible.
Further, a feed motor 53 is connected to the I / O interface 14 via a feed motor driver 153a. Further, a female drive solenoid 174 is connected to the I / O interface 14 via a female drive circuit 174a.
Further, a needle swing motor 157 is connected to the I / O interface 14 via a needle swing motor driver 157a.
Further, a press-up solenoid 44 is connected to the I / O interface 14 via a press-up drive circuit 144a, and a press-up pedal 44b is connected to the I / O interface 104.

  The operation panel 20 is also connected to the CPU 11 via the I / O interface 14. The operation panel 20 includes a touch panel switch that displays various settings and operation states of the sewing machine, and various setting inputs to be described later are performed by using various buttons that are displayed. Also, a fixed switch for inputting various settings, operations, and the like is provided below the touch panel of the operation panel 20 so that each fixed switch can perform a constant input regardless of switching of the display on the touch panel. It has become.

  The EEPROM 15 stores a plurality of types of sewing data. In each sewing data, parameters related to buttonhole sewing are set. Examples of parameters set in the sewing data include, for example, a part of the sewing shape of the overlock stitch, the length of the cloth cutting knife that is the length to be cut by the knife, and both end portions of the button hole in the longitudinal direction. Are the bar-tacking length indicating the length of sewing, the over-width indicating the width of sewing on both sides of the button hole, the width of the female groove, the rotational speed of the sewing machine motor during sewing, and the like.

The CPU 11 displays the data number of each sewing data stored in the EEPROM 15 and the contents of main parameters by the operation panel 20 according to a predetermined processing program, and performs processing for receiving selection of sewing data for sewing from the operator. .
Further, when the sewing data is selected and the start of sewing is input from the operation panel 20, the CPU 11 sequentially feeds the feed motor 153 for positioning the sewing needle to the needle drop position based on the selected sewing data. Then, the feed amount of the needle swing motor 157 is calculated, operation control for positioning the sewing needle in order in synchronization with the rotation of the sewing machine motor 132 is performed, and buttonhole sewing is executed.

  Further, the CPU 11 performs a process of receiving from the operator an input of a change in arbitrary parameter contents for arbitrary sewing data stored in the EEPROM 15 from the operation panel 20 during non-sewing according to a predetermined processing program. Upon receiving such a change, the CPU 11 performs processing for updating the contents of the parameters of the sewing data recorded in the EEPROM 15.

  Further, the CPU 11 divides the numerical range of the designated parameter from the operation panel 20 as the threshold setting means into two or more for any parameter designated by the operation panel 20 as the parameter designation means according to a predetermined processing program. When the threshold value setting input is received, the specified parameter and the threshold value are stored in the EEPROM 15.

In addition, when selection of sewing data to be sewn is performed according to a predetermined processing program, the CPU 11 determines which set value for the parameter for which the threshold is set in the sewing data. A process as a classification determination unit for determining whether or not the image belongs to
That is, when the threshold value of c is set for a parameter set in a range of a to b by the threshold setting described above (a <c <b), the classification of a to c and c to b However, when sewing data to be sewn is selected, the CPU 11 determines that the values set for the same parameter in the sewing data are the values of a to c and c to b. To which of the following categories is determined.
In addition, if a certain parameter is not a property that is set numerically, but has a property that is classified into a plurality of types (for example, a sewing shape), a code number is set for each type, and the code number It is also possible to classify by setting a threshold.

  In addition, the CPU 11 determines, after the processing as the classification determination means, according to a predetermined processing program, that the classification determined by the processing as the classification determination means is a predetermined classification among a plurality divided by threshold values. Operation control is performed as first notification control for displaying on the operation panel 20 that the predetermined section is displayed.

  In addition, the CPU 11 selects the sewing data selected last time and the current selection when the classification determined by the processing as the classification determination means is different from the classification determined by the classification determination means at the previous sewing according to a predetermined processing program. Operation control is performed as second notification control for displaying on the operation panel 20 that the predetermined parameter is different from the sewn data.

  In addition, according to a predetermined processing program, the CPU 11 performs either the first or second notification control as the notification control performed after the processing as the classification determination unit in advance, or does not perform either, As the notification control, the EEPROM 15 stores an input for selecting whether to perform the notification control when it corresponds to any category, or to perform the notification control regardless of which category.

(Operation control in the preparatory stage before sewing)
The operation control at the preparatory stage before sewing by the control device 10 of the sewing machine will be described.
When the CPU 11 detects an input of the memory switch W1 of the operation panel 20 during non-sewing, the CPU 11 performs operation control to display the setting input screen G1 shown in FIG.
Further, when detecting the input of the parameter designation switch W2 displayed on the setting input screen G1, the CPU 11 performs operation control for displaying the parameter designation screen G2 shown in FIG. On the parameter designation screen G2, parameter designation switches W3 corresponding to a plurality of parameters set in the sewing data are displayed. When the input of any one of the switches W3 indicating the parameters is detected, the CPU 11 determines the corresponding parameters. Recognize as specified. FIG. 3 illustrates a case where the length of the cloth cutting knife is specified as a parameter. Hereinafter, the case where the length of the cloth cutting knife is specified as a parameter will be described.

Further, when detecting the input of the parameter designation switch W3 displayed on the parameter designation screen G2, the CPU 11 performs operation control for displaying the threshold setting screen G3 shown in FIG. The threshold value setting screen G3 displays a numerical value input switch W4 for setting a threshold value for performing the segment formation with respect to the cloth cutting knife length that is the designated parameter, and the numerical value input by the numerical value input switch W4 and the setting switch W5. The CPU 11 records the set and input threshold value in the EEPROM 15. At this time, two categories (first category: setting lower limit value to threshold value, second category: threshold value to setting upper limit value) are obtained based on the input threshold value, and the numerical range of each category is recorded in the EEPROM 15. To do.
For example, as shown in the figure, when 7.0 [mm] is set as the threshold value, the first division of the cloth cutting knife length setting lower limit value 3.0 [mm] to the threshold value 7.0 [mm] and the threshold value 7.0 [mm] ~ The second division up to the lower limit of the cloth cutting knife length 15.0 [mm] is obtained and recorded.

  Further, upon receiving the input of the setting switch W5, the CPU 11 enables the setting input of a new second threshold, displays the second setting switch under the setting switch W5, and displays the numerical value input switch W4. Perform input detection. For example, when the second threshold value is set by the numerical value input switch W4, the CPU 11 records the second threshold value in the EEPROM 15, and divides the setting range of the cloth cutting knife length as the designated parameter into three, The numerical ranges of the three sections are overwritten and recorded in the EEPROM 15. Thereafter, the same processing is performed every time a new threshold value can be set. In the present embodiment, the description will be continued by taking as an example a case where the setting range of the cloth cutting knife length which is a designated parameter is divided into two.

When the input of the confirmation switch W6 is detected on the threshold setting screen G3, the CPU 11 displays a notification control selection screen G4 that specifies which of the plurality of types of notification control is executed (see FIG. 5). ). On the notification control selection screen G4, a selection switch W7 corresponding to each notification control is displayed. The selection switch W7 includes the designation of the first notification control, the designation of the second notification control, and the designation not to execute any notification control. Further, in the first notification control, when the setting value of the designated parameter is included in the first category based on the threshold value, and when the setting value of the specified parameter is included in the second category based on the threshold value There is a designation for performing notification, and a designation for notifying that the setting value of the designated parameter is included in the section while specifying the section even when the setting value of the specified parameter is included in any section.
When the notification control is specified by the selection switch W7, the CPU 11 records in the EEPROM 15 which notification control is performed.

When a plurality of threshold values are set, for each of the plurality of sections based on the respective threshold values, a selection switch for designating notification control that performs notification when the setting value of the designated parameter is included is displayed. Is recorded in the EEPROM 15.
Further, when three or more categories are generated, a selection switch for designating notification control for performing notification when any one of combinations of at least two or more of each category belongs is displayed, and selection of the notification control is selected from the EEPROM 15. You may perform the process recorded on.

Next, the operation control when the sewing machine control device 10 shifts to the sewing from the preparatory stage before sewing will be described based on the flowchart of FIG.
First, the sewing machine control device 10 is turned on, the threshold value is already set for the length of the cloth cutting knife as the designated parameter, and any sewing data is selected by the operator when the second notification control is selected. Is done. That is, the CPU 11 performs control to display the initial screen G5 (see FIG. 7) on the operation panel 20 according to a predetermined program. When detecting the input of the pattern change switch W8 in the initial screen G5, the CPU 11 performs control to display the pattern selection screen G6 on the operation panel 20 (see FIG. 8).
In the pattern selection screen G6, in the lower half of the screen, a selection switch W9 on which main parameters are displayed for each of the four sewing data is displayed. More sewing data is recorded in the EEPROM 15, but only four patterns are displayed at a time on the pattern selection screen G6, and the remaining sewing data is switched and displayed by the scroll switch W10.
Next, when the input of any of the selection switches W9 on the pattern selection screen G6 is detected, the CPU 11 performs control to display the detailed parameter contents in the upper half of the pattern selection screen G6. Further, when the input of the confirmation switch W11 is detected, the selection of the sewing data is confirmed, and the control for redisplaying the initial screen G5 with the sewing data selected is performed (see FIG. 9). In this state, the selection of sewing data is confirmed.

When the sewing data is determined, the CPU 11 waits for input of the switch W12 for shifting to the sewing state (step S2). The sewing data can be selected again until the transition switch W12 is input.
Then, when detecting the input of the transition switch W12, the CPU 11 refers to the value of the cloth cutting knife length set in the selected sewing data from the EEPROM 15, and the value is set as the cloth cutting knife length set. Whether it belongs to the first division or the second division is determined (step S3).
More specifically, when the cloth cutting knife length in the sewing data is set to 5.0 [mm], the setting threshold is 7.0 [mm], so a value smaller than the threshold is targeted. It will be determined that it belongs to the first category.

Next, when the classification is determined, the CPU 11 reads out the record of the classification to which the cloth cutting knife length belongs in the sewing data when the previous sewing was performed (see step S6) from the EEPROM 15, and the classification determined in step S3. It is determined whether they match (step S4).
If it is determined that the categories match, the CPU 11 proceeds to the process of step S8 without performing notification.
On the other hand, if it is determined that the categories do not match, the CPU 11 executes operation control for displaying the notification screen G7 (see FIG. 10) on the operation panel 20 (step S5). The notification screen G7 displays that the cloth cutting knife length classification at the previous sewing time is different from the cloth cutting knife length classification at the current sewing time.

  When the notification screen is displayed, the CPU 11 executes a process of updating and recording the classification to which the set value of the cloth cutting knife based on the current sewing data belongs to the EEPROM 15 for the next sewing determination (step S6). That is, the segment recorded here is read out in the process of step S4 at the time of the next sewing and used for determination.

When the notification screen G7 is displayed on the operation panel 20, the CPU 11 waits for input of the screen display end switch W13 (step S7).
Further, when detecting the input of the screen display end switch W13, the CPU 11 performs operation control for displaying the initial screen G5. When the CPU 11 detects the input of the pattern change switch W8 or the setting change switch W14 (see FIG. 9) for changing the setting value of each parameter, the CPU 11 returns the process to step S1 to change the new parameter or new parameter. The process is executed again with the sewing data (step S8).
In addition, when the input of the pattern change switch W8 or the setting change switch W14 for changing the setting value of each parameter is not detected, the operator can dispose the cloth before the input of the switch W12 to the sewing state. Then, final operation of sewing is performed by inputting the operation of the cloth presser and the like (step S9), and when the input of the switch W12 to the sewing state is detected (step S10), the CPU 11 selects in step S1. Processing for executing sewing is performed according to the sewing data thus set (step S11).

  If the input of the switch W12 to the sewing state is not detected in the process of step S10, the process returns to the process of step S8, and the presence / absence of the pattern change switch W8 and the setting change switch W14 for changing the setting value of each parameter. In the next sewing, the same sewing as the current state is continued or changed and new sewing is performed.

  In step S11, when the sewing is completed, the process returns to step S8. Here, when detecting the input of the pattern change switch W8, the CPU 11 returns the process to step S1, and enables the input of parameter designation, threshold setting, notification control type selection, and selection of other sewing data again. Here, when other sewing data is selected, a segment in the predetermined parameter of the new sewing data is obtained (step S3), and coincides with the segment of the predetermined parameter in the sewing data that has been sewn this time. A comparison is made (step S4), and if they do not match, a notification screen is displayed (step S5).

In the above description, even when sewing data is not changed, that is, even when sewing is performed with the same sewing data after only a part of the sewing data is changed, the specified parameters are Notification control based on the classification to which the information belongs is performed.
The change of the parameter setting value will be described. When the input of the parameter display button W15 on the initial screen G5 (see FIG. 9: Here, for example, changing the length of the cloth cutting knife) is detected, the CPU 11 displays a numerical value setting screen G8 (see FIG. 11). Control is performed, and a change in the numerical value is received by the numerical value increase / decrease switch W16, and processing for updating the set value of the corresponding parameter of the sewing data in the EEPROM 15 is performed by the input of the confirmation switch W17.
Therefore, there is a case where the change of the set value of the parameter may cause a change in the class to which the parameter belongs, and the change of the class can be obtained and notified in the sewing before and after changing the parameter for the same sewing data. .

  Note that the flowchart shown in FIG. 6 shows processing when the second sewing control is selected, but when the first notification control is selected, the designated parameter value belongs to a predetermined category. When the case where the notification control is performed only in the case is selected, the process in step S4 is changed to the process in step S21 shown in FIG. That is, when the set value of the designated parameter (for example, the cloth cutting knife length) belongs to a predetermined section (for example, the first section), the process proceeds to step S5, and the notification screen G7 is changed to the first screen. A notification screen displaying that it belongs to one category is displayed.

Further, when the first notification control is selected, and when the case where the corresponding notification control is performed when the designated parameter value belongs to each section is selected, the processing of step S4 and step S5 is performed as shown in FIG. It changes like the process of step S22-S24 shown to these. That is, it is determined whether or not the set value of the designated parameter (for example, the length of the cloth cutting knife) belongs to the first section (step S22), and if it belongs, the process proceeds to step S23 to indicate that it is the first section. A notification screen for displaying is displayed. Thereafter, the process proceeds to step S6.
On the other hand, if it does not belong, the process proceeds to the process of step S24, and a notification screen displaying that it is the second division is displayed. Even in such a case, the process proceeds to step S6 thereafter.

  Furthermore, when the case where neither the first notification control nor the second notification control is executed is selected, the process of step S4 and step S5 is not performed, and the process directly proceeds from step S3 to step S6.

(Effect of embodiment)
In the control device 10 of the sewing machine, the CPU 11 performs the first notification control according to the processing program, thereby performing the notification control according to the category to which the set value of the designated parameter included in the sewing data belongs. By setting to, the operator can recognize that the set value of a specific parameter is within the range of a specific category defined by the threshold value, and whether the sewing data selected by the recognition is appropriate Can be easily determined, and errors in selecting sewing data can be suppressed. In addition to incorrect selection of sewing data, even if the set value is changed for a specific parameter in the sewing data, it is easy to determine whether the changed value is appropriate, and parameter setting It becomes possible to suppress an inappropriate change of the value.
Accordingly, it is possible to maintain proper sewing with no error, and it is possible to easily suppress the waste of the sewing product, the attachment, and the surrounding damage.

  Furthermore, since the CPU 11 performs the second notification control according to the processing program, the notification display is performed when the category to which the set value of the predetermined parameter belongs is different from the category in the previous sewing, so that the sewing data can be selected. If there is a large fluctuation from the previous time in the parameter setting value that is expected to have a high probability of occurrence of an error or incorrect setting of each parameter, it is possible to call attention. Sewing can be suppressed and more appropriate sewing can be performed.

(Second embodiment)
An example in which the above-described sewing machine control device 10 is applied to a button sewing machine 200 will be described. In this embodiment, the same contents as those in the first embodiment described above are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.
The button-attached sewing machine 200 holds a cloth on a needle plate, a needle driving unit that drives the sewing needle up and down, a button holding unit that holds the button, a moving unit that relatively moves the sewing needle and the button. A cloth holding means and a tongue mechanism for holding the cloth during root winding sewing are provided.

The needle driving means moves the needle bar up and down by the driving force of the sewing machine motor 132 in the same manner as the buttonhole sewing machine 100.
The cloth holding means includes a cloth presser that moves up and down with respect to the needle plate and a press-up solenoid 144 that drives to move the needle plate up and down and holds the fabric on the needle plate. Such cloth holding means holds the cloth at the time of so-called solid stitching for sewing a button disposed on the upper side of the spread cloth on the upper surface of the needle plate.
The tongue mechanism includes a tongue capable of disposing the tip portion below the sewing needle, and maintains the state where the fabric is folded at the tip portion. Such a tongue mechanism holds the fabric when the button is sewn by reverse stitching and when the button that has been sewn is root-wrapped.
The button holding means is configured to hold the button and to move and position the X-axis direction and the Y-axis direction by the moving means.
The moving means includes a needle swing motor 153 that moves and positions the sewing needle by swinging the lower end of the sewing needle along the X-axis direction, and the buttons held by the button holding means in the X-axis direction and the Y-axis direction, respectively. An X-axis motor 253 and a Y-axis motor 254 for moving and positioning are provided.

The control device 10 controls the rotational speed of the sewing machine motor 132, the drive timing and swing width of the needle swing motor 157, the amount of button feed by the X-axis motor 253 and the Y-axis motor 254, and the cloth presser up / down switching.
The control device 10 performs sewing by causing the CPU 11 to process the RAM 13 as a work area by using various programs corresponding to the button sewing machine stored in the ROM 12 and a plurality of sewing data corresponding to the button sewing machine stored in the EEPROM 15. Executes the control of hole sewing based on the data.
An X-axis motor 253 is connected to the I / O interface 14 via an X-axis motor driver 253a. A Y-axis motor 254 is connected to the I / O interface 14 via a Y-axis motor driver 254a.

  The EEPROM 15 stores a plurality of types of sewing data. In each sewing data, parameters related to button sewing are set. Examples of parameters set in the sewing data include, for example, a part of the sewing shape of button sewing, button interval, button hole arrangement, button hole interval, rake amount and rake width in rake sewing, The number of rotations of the sewing machine motor at the time of sewing.

In accordance with a predetermined processing program, the CPU 11 displays the data number of each sewing data stored in the EEPROM 15 and the contents of main parameters by the operation panel 20 and performs processing for receiving selection of sewing data for sewing from the operator. . This point is the same as that for the buttonhole sewing machine 100 described above, and will be described briefly.
That is, when the sewing data is selected and the start of sewing is inputted from the operation panel 20, the CPU 11 sequentially positions the sewing needle to the needle drop position based on the selected sewing data. 253, the feed amounts of the Y-axis motor 254 and the needle swing motor 157 are calculated, operation control is performed to position the sewing needle in order in synchronization with the rotation of the sewing machine motor 132, and button sewing is executed.

  Further, the CPU 11 performs an update upon receiving an input of an arbitrary parameter content change in the sewing data in the EEPROM 15, a point for performing a process of dividing the numerical range of the designated parameter by setting a threshold value, and a process as a classification determination unit The point of performing the first, second notification control, and the point of processing each sewing control to be selectable are the same as described above.

The operation control in the preparatory stage before sewing by the control device 10 of the sewing machine will be described.
The CPU 11 displays the parameter designation screen G21 shown in FIG. 15 on the operation panel 20 and displays the parameter designation switch W21 in response to the input of the parameter designation switch W2 in the display state of the setting input screen G1 (see FIG. 2). Accepts parameter specification by input. Here, the case where the rake width is designated as a parameter will be described.

Further, the display is switched to the threshold setting screen G22 by the input of the parameter specifying switch W21 on the parameter specifying screen G21. When the threshold value of the designated parameter is input by the numerical value input switch W22 displayed on the screen G22, the CPU 11 records the threshold value in the EEPROM 15.
The point that a plurality of threshold values can be set is the same as in the first embodiment.

  When the threshold value input is confirmed on the threshold value setting screen G21, the CPU 11 displays the notification control selection screen G23 (see FIG. 17). When the notification control is specified by the selection switch W23 on the notification control selection screen G23, the CPU 11 records which notification control is performed in the EEPROM 15. Note that the type of notification control is the same as in the first embodiment.

Next, operation control when the sewing machine control device 10 shifts to the sewing from the preparatory stage before sewing will be described. Since the processing content is the same as that of the first embodiment, the processing will be described with reference to the flowchart of FIG.
When the second notification control is selected on the notification control selection screen G23, the CPU 11 performs control to display the initial screen G24 (see FIG. 18) on the operation panel 20. Further, when a pattern change instruction is input, the display is switched to the pattern selection screen G25 (see FIG. 19).
On the pattern selection screen G25, when one of various sewing data is selected by the selection switch W24, an initial screen G25 on which the details of the parameters are displayed is displayed (FIG. 20). In this state, selection of sewing data is confirmed.

When the sewing data is determined, the CPU 11 waits for input to the switch W25 for shifting to the sewing state (step S2). When there is an input, the CPU 15 refers to the rake width value set in the selected sewing data from the EEPROM 15. Then, it is determined whether it belongs to the first division or the second division set in advance (step S3).
Next, when the division is determined, the CPU 11 reads from the EEPROM 15 the record of the division to which the rake width belongs in the sewing data when the previous sewing was performed (step S4).
If the categories match, the process proceeds to step S8. If they do not match, the CPU 11 displays the notification screen G26 (see FIG. 21) on the operation panel 20 (step S5). Then, the division to which the set value of the rake width based on the current sewing data belongs is updated and recorded in the EEPROM 15 (step S6).

When an instruction to end the display of the notification screen G26 is input (step S7), the CPU 11 displays the initial screen G24 again. When detecting the input of the pattern change switch W26 or the setting change switch W27 for changing the setting value of each parameter, the CPU 11 returns the process to step S1 and executes the process again (step S8).
If the input of the pattern change switch W26 or the like is not detected, the operator inputs the cloth arrangement and the cloth presser operation, and the final preparation for sewing is performed (step S9), and the transition to the sewing state is performed. When the input of the switch W25 is detected (step S10), the process proceeds to a process of executing sewing (step S11).
If the sewing process is not started in step S10, the process returns to step S8.

  In step S11, when the sewing is completed, the process returns to step S8. Further, when the input of the pattern change switch W8 is detected, the process returns to step S1, and it becomes possible to input again the parameter designation, threshold setting, notification control type selection, and other sewing data selection. Here, when other sewing data is selected, a segment in the predetermined parameter of the new sewing data is obtained (step S3), and coincides with the segment of the predetermined parameter in the sewing data that has been sewn this time. A comparison is made (step S4), and if they do not match, a notification screen is displayed (step S5).

The change of the parameter setting value will be described. When the input of the parameter display button W27 on the initial screen G24 is detected, the CPU 11 performs control to display the numerical value setting screen G27 (see FIG. 22), and updates the setting value of the corresponding parameter of the sewing data in the EEPROM 15. be able to.
Therefore, when a change occurs in the classification to which the parameter belongs by changing the setting value of the parameter, a notification regarding the change in the classification is performed in sewing before and after changing the parameter for the same sewing data.

  When the first notification control is selected and the notification control is performed only when the designated parameter value belongs to the predetermined category, the process of step S21 shown in FIG. 12 is performed instead of the process of step S4. When the first notification control is selected and the case where the corresponding notification control is performed when the designated parameter value belongs to each category is selected, the processing in steps S4 and S5 is performed. If the point where the processing of steps S22 to S24 shown in FIG. 13 is performed and the case where neither the first notification control nor the second notification control is executed is selected, the processing of steps S4 and S5 is performed. The point that is not performed is the same as in the first embodiment.

  As shown in the second embodiment, the control device 10 for the sewing machine can appropriately correspond to the button sewing machine 200 as well as the buttonhole sewing machine 100, and can achieve the same effect.

  In the second embodiment, the notification screens G28 and G29 displayed in graphic form may be displayed instead of the display of the notification screen G26 using characters (FIG. 23). That is, when the specified parameter is a rake width, it is essential to use an appropriate type of tongue according to the rake width. Therefore, when the first notification control is selected, the CPU 11 may perform control so as to display the notification screens G28 and G29 on which the figure and model number of the tongue corresponding to each section are described. In this case, it is possible to grasp the contents of the notification visually and more easily than character display, and more appropriate sewing can be performed.

  In both cases of the first and second embodiments, the notification is given by the screen display by the operation panel 20, but other means that can be recognized by the operator, for example, a warning by a voice or a buzzer, a lamp display, etc. Means such as a warning may be used.

It is a block which shows each structure of the control apparatus of the sewing machine which is 1st embodiment, and the buttonhole sewing machine controlled by this. The example of a setting input screen display by an operation panel is shown. A display example of a parameter designation screen on the operation panel is shown. The example of a display of the threshold value setting screen by an operation panel is shown. The example of a display of the alerting | reporting control selection screen by an operation panel is shown. It is a flowchart which shows the operation control in the case of shifting to the sewing from the preparatory stage before sewing by the control device of the sewing machine. A display example of the initial screen by the operation panel is shown. The example of a display of the pattern selection screen by an operation panel is shown. The example of a display of the initial screen in which the sewing data by the operation panel was switched is shown. The example of a display of the alerting | reporting screen by an operation panel is shown. An example of a numerical value setting screen displayed on the operation panel is shown. It is explanatory drawing which shows only a different process when performing another alerting | reporting control. It is explanatory drawing which shows only a different process in the case of performing other alerting | reporting control. It is a block which shows each structure of the control apparatus of the sewing machine which is 2nd embodiment, and the buttoned sewing machine controlled by this. A display example of a parameter designation screen on the operation panel is shown. The example of a display of the threshold value setting screen by an operation panel is shown. The example of a display of the alerting | reporting control selection screen by an operation panel is shown. A display example of the initial screen by the operation panel is shown. The example of a display of the pattern selection screen by an operation panel is shown. The example of a display of the initial screen in which the sewing data by the operation panel was switched is shown. The example of a display of the alerting | reporting screen by an operation panel is shown. An example of a numerical value setting screen displayed on the operation panel is shown. FIG. 23A shows a notification screen when belonging to one category, and FIG. 23B shows a notification screen when belonging to the other category.

Explanation of symbols

10 Sewing Machine Control Device 11 CPU (Division Determination Unit, Notification Control Unit)
20 Operation panel (parameter specifying means, threshold setting means)
100 buttonhole sewing machine 200 button sewing machine

Claims (5)

In the control device of the sewing machine that forms the stitch according to the sewing data including various parameters related to the sewing conditions,
Parameter specifying means for specifying an arbitrary parameter from the various parameters;
Threshold setting means for setting a threshold for dividing the numerical range of the designated parameter into at least two or more;
Classification determination means for determining to which of the categories the value of the specified parameter in the sewing data belongs according to the set threshold value;
A control device for a sewing machine, comprising: notification control means for performing notification control according to a determination result by the classification determination means before forming a stitch according to the sewing data. 2. The sewing machine control device according to claim 1, wherein the notification control unit performs the notification control when the category determined by the category determination unit is a previously specified category. The said notification control means performs the said notification control, when the division | segmentation determined by the said division | segmentation determination means differs from the division | segmentation determined by the said division | segmentation determination means at the time of the last sewing. Sewing machine control device. In the control device of the sewing machine that forms the stitch according to the sewing data including various parameters related to the sewing conditions,
Threshold setting means for setting a threshold for dividing the numerical range of the predetermined parameter into at least two,
Classification determination means for determining to which section the value of the predetermined parameter in the sewing data belongs according to the set threshold value;
Before forming a stitch according to the sewing data, comprising a notification control means for performing notification control according to the determination result by the classification determination means,
The notification control means includes
A first notification control unit that performs notification control when the category determined by the category determination unit is a previously specified category;
When the classification determined by the classification determination means is different from the classification determined by the classification determination means at the previous sewing, the second notification control means for performing notification control,
A control device for a sewing machine, comprising: notification selection means for selecting whether to perform notification control based on either the first or second notification control means. The control device for a sewing machine according to claim 1, 2, 3, or 4, wherein the notification control means can select not to execute the notification control.

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