JP2008272345A - Sewing machine control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sewing machine control device capable of saving a storage area of storage means and highly efficiently changing operating conditions of a sewing machine. <P>SOLUTION: This sewing machine control device controls the operation of the sewing machine according to a content of a control memory SW (switch) group stored in a flash memory. The flash memory stores a plurality of memories SWs consisting of memories SWs for changing setting. When changing the contents of the control memory SW group, this control device changes not all the contents of the control memory SW group but changes one part corresponding to memories SWs consisting one memory SW group selected from the flash memory. This constitution can efficiently and quickly change the content of the control memory SW group. The memory SW groups stored in the flash memory are constituted of memory SWs which is desired to be changed so as to save the storage area of the flash memory. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sewing machine control device, and more particularly, to a sewing machine control device that controls the operation of a sewing machine.

2. Description of the Related Art Conventionally, there has been known a sewing machine control device that can easily set the number of rotations and functions of a drive motor in each state of the sewing machine accompanying a change in the machine type of the sewing machine (for example, see Patent Document 1). This sewing machine control device stores a control means for controlling a sewing machine operation, a setting means for setting a setting value for the sewing machine operation, and a function for each machine type or a setting value for rotational speed data for the sewing machine operation. Means and display means for displaying a set value for the sewing machine operation. Then, the setting means and the display means read the function or rotational speed data for each machine model stored in the storage means and control the operation of the sewing machine. Therefore, even if the sewing machine main body model is changed or the sewing machine control device is changed to a different model, the sewing machine model is not limited by the switch provided as the model selection means, and the rotation suitable for the sewing machine The number, function, and various set values can be set easily at once.
JP-A-6-190179

  However, in the sewing machine control apparatus described in Patent Document 1, for example, when the model of the sewing machine main body is changed, all the functions and rotation speed data corresponding to the machine main body model are read and the read data Control is performed according to That is, not only the data different from that before the change but also the same data as before the change is rewritten. For this reason, there is a problem in that the storage means has to store more than necessary storage areas of the storage means because all data relating to the function for each model and the rotational speed must be stored. In addition, when a sewing item such as fabric or thread is changed halfway, the rotational speed data cannot be changed by the sewing item, which causes a problem of poor sewing.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a sewing machine control device that can save the storage area of the storage means and can efficiently change the operating conditions of the sewing machine.

  In order to achieve the above object, a sewing machine control apparatus according to a first aspect of the present invention includes a first storage unit that stores a plurality of parameters that respectively set a plurality of operating conditions of the sewing machine as a set of parameter groups, Of the parameter group stored in the first storage means, a second storage means for storing a change parameter group composed of one or two or more change target parameters to be set and changed in a plurality of patterns; Of the plurality of change parameter groups stored in the second storage means, the selection means for selecting one of the change parameter groups, and among the parameter groups stored in the first storage means, the selection means Change means for changing the content of the parameter corresponding to the change target parameter of the selected change parameter group to the content of the change target parameter. To have.

  According to a second aspect of the present invention, in the sewing machine control device according to the first aspect, in addition to the configuration of the first aspect, the second storage means includes a plurality of patterns of the change parameter group having different combinations of the change target parameters. Is stored.

  According to a third aspect of the present invention, there is provided a sewing machine control apparatus comprising the setting means for arbitrarily setting the change target parameter in addition to the configuration of the first or second aspect.

  According to a fourth aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the parameter group includes, in the parameter group, a drive motor at a sewing start or sewing end by the sewing machine. A plurality of rotation speed parameters for setting a rotation speed for each needle; and the second storage means includes the change parameter group including the change target parameter corresponding to the rotation speed parameter in a plurality of patterns. It is memorized.

  According to a fifth aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the selection means is provided on an operation panel for operating the sewing machine. It is characterized by.

  According to a sixth aspect of the present invention, there is provided a sewing machine control device comprising an identification number reading means for reading an identification number from an IC tag in addition to the configuration of the invention according to any one of the first to fifth aspects, wherein the second storage means. A plurality of change parameter groups respectively corresponding to the plurality of identification numbers are stored, and the selection means selects the change parameter group corresponding to the identification numbers read by the identification number reading means. Features.

  In the sewing machine control device according to the first aspect, the first storage means stores a plurality of parameters for setting a plurality of operating conditions of the sewing machine as a set of parameter groups. Further, the second storage means stores a change parameter group in which only the parameters whose settings are to be changed among the parameter group are collected in a plurality of patterns. When the user wants to change the operating condition of the sewing machine in a certain pattern, one change parameter group is selected from the plurality of change parameter groups stored in the second storage means by the selection means. Furthermore, only the content of the parameter corresponding to the change target parameter of the change parameter group selected by the selection unit among the parameter groups stored in the first storage unit is changed by the change unit to the content of the change target parameter. . That is, it is possible to change only the content of the parameter corresponding to the change parameter group that the user wants to change while keeping the same setting parameters as the previous time. As a result, it is not necessary to change all the parameters every time the setting is changed, so that the time required for changing the parameter contents can be shortened. Furthermore, since the second storage unit only needs to store a change parameter group obtained by collecting only the parameters related to the setting change for each pattern, the storage area of the second storage unit can be saved.

  In the sewing machine control apparatus according to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the second storage means can store a plurality of patterns of change parameter groups having different combinations of change target parameters. Therefore, a plurality of variations can be set in advance for the change pattern of the operating conditions of the sewing machine.

  In the sewing machine control device according to the third aspect of the present invention, in addition to the effect of the first or second aspect, the parameter to be changed can be arbitrarily set by the setting means. Thereby, for example, when it is desired to partially change the operation condition of the sewing machine, the parameter group to be changed corresponding to the operation condition to be changed can be individually set by the setting means.

  In the sewing machine control device according to the fourth aspect of the invention, in addition to the effect of the invention according to any one of the first to third aspects, the parameter group includes a rotation speed of the drive motor at the sewing start or sewing end by the sewing machine. Are included for each needle. Thereby, the rotational speed of the needle at the start of sewing or at the end of sewing can be changed for each stitch. On the other hand, the second storage means stores a change parameter group including change target parameters corresponding to the rotation speed parameter in a plurality of patterns. Thereby, for example, depending on the user's preference and the type of the sewing item, a pattern of change parameter groups related to the rotation speed can be provided.

  In the sewing machine control apparatus according to the fifth aspect of the invention, in addition to the effects of the invention according to any one of the first to fourth aspects, the selection means is provided on the operation panel for operating the sewing machine. The operating conditions can be easily changed.

  In addition, in the sewing machine control device of the invention according to claim 6, in addition to the effects of the invention according to any one of claims 1 to 5, for example, the identification number of the IC tag attached to the user or the sewing item is identified. It is read by number reading means. On the other hand, a plurality of change parameter groups respectively corresponding to a plurality of identification numbers are stored in the second storage means. Then, a change parameter group corresponding to the identification number read by the identification number reading unit is selected by the selection unit. Thereby, the operating condition of the sewing machine can be changed according to the identification number read by the identification number reading means.

  Hereinafter, a sewing machine control device 10 according to an embodiment of the present invention will be described with reference to the drawings. The sewing machine control device 10 controls the operation of the industrial sewing machine 1. A plurality of memory switches (hereinafter referred to as “memory SW”) corresponding to each operating condition of the sewing machine 1 are stored in the flash memory 15 as a set of memory SW groups, and each memory SW constituting the memory SW group is stored. The operation of the sewing machine 1 is controlled in accordance with the contents of. Here, the memory SW means a software switch for setting the operating condition of the sewing machine 1.

  First, the overall structure of the sewing machine 1 will be schematically described. FIG. 1 is an overall perspective view of the sewing machine 1, and FIG. 2 is a front view of the operation panel 8. As shown in FIG. 1, the sewing machine 1 includes a work table 2, a bed portion 3 provided on the work table 2, a leg column portion 4 erected on the right end of the bed portion 3, and the legs The arm portion 5 that extends to the left so as to face the bed portion 3 from the upper end of the column portion 4 is mainly configured.

  A cylinder bed 3a is provided on the front surface of the bed portion 3 facing the worker, protruding forward. In the bed portion 3, an X-axis direction drive mechanism (not shown) and a Y-axis direction drive mechanism (not shown) are provided. Further, on the cylinder bed 3a, there is provided a presser foot device 7 that can be independently moved in two directions of X axis and Y axis orthogonal to each other. This presser foot device 7 is similarly driven and controlled by the sewing machine control device 10 in the X-axis direction by an X-axis feed motor 25 (see FIG. 3) formed of a stepping motor that is driven and controlled by a command from the sewing machine control device 10 described later. The movement is controlled in the Y-axis direction by a Y-axis feed motor 26 (see FIG. 3) that is a stepping motor.

  This presser foot device 7 includes a feed plate (not shown) that is moved in the X-axis direction and the Y-axis direction along the cylinder bed 3a, an arm-like presser arm 7a provided on the feed plate, A rectangular frame-shaped cloth presser plate 7b supported so as to be vertically movable is provided at the front end of the presser arm 7a. The cloth presser plate 7b is usually lifted from the feed plate by urging by a spring (not shown). Then, it is lowered onto the feed plate against the spring pressure by urging by a presser solenoid (not shown) attached to the presser arm 7a. Thereby, the work cloth which is a sewing target object is clamped by the cloth presser plate 7b and the feed plate (not shown). Then, the sewing machine motor 24 (see FIG. 3) is driven in a state where the work cloth is sandwiched between the cloth presser devices 7, and the needle bar 6a of the sewing machine 1 and the sewing needle 6b at the lower end thereof are moved up and down. Further, the X-axis feed motor 25 and the Y-axis feed motor 26 are driven to control the position of the presser foot device 7. Thereby, sewing along a sewing pattern can be automatically performed on a work cloth.

  On the starboard side of the work table 2, an operation panel 8 is provided for displaying various sewing information such as sewing parameters and sewing speed and for setting the operating conditions of the sewing machine 1. As shown in FIG. 2, on the front surface of the operation panel 8, a display device 40 composed of a three-digit seven-segment display is displayed on a number display unit 35 composed of a two-digit seven-segment display and a display device 40. An increase key 41 and a decrease key 42 for increasing / decreasing the number, an increase key 37 and a decrease key 38 for increasing / decreasing the number displayed on the number display section 35, an enter key 50 for confirming the operation, and other reset keys 30 , A feed key 31, an upper thread cut & set key 32, a lower thread cut & set key 33, a select key 34, and the like are provided.

  Next, the electrical configuration of the sewing machine 1 will be described. 3 is a block diagram showing an electrical configuration of the sewing machine 1, FIG. 4 is a conceptual diagram showing a storage area of the ROM 13, and FIG. 5 is a conceptual diagram showing a storage area of the flash memory 15. 6 is a conceptual diagram of the control memory SW group, FIG. 7 is a conceptual diagram of the memory SW group list 1531, and FIG. 8 is a conceptual diagram of the IC tag number table 1541.

  As shown in FIG. 3, the sewing machine 1 is provided with a sewing machine control device 10 according to the present invention. The sewing machine control device 10 includes a CPU 12, a ROM 13, a RAM 14, an electrically rewritable nonvolatile flash memory 15, an input interface 11, an output interface 17, sewing items such as work cloths and threads. Alternatively, an IC tag reader 16 for reading identification information from an IC tag 9 attached to a card or the like individually owned by a user, a bus 18 such as a data bus for interconnecting these, and drive circuits 19 and 20 , 21 are provided.

  Further, the input interface 11 includes a start / stop switch 22 for instructing start and stop of the sewing machine 1, an operation panel 8, and a rotational position detection sensor for detecting a rotation angle of a drive shaft (not shown) of the sewing machine motor 24. Are connected to each other. The output interface 17 includes a drive circuit 19 for driving the sewing machine motor 24, a drive circuit 20 for driving the X-axis feed motor 25, a drive circuit 21 for driving the Y-axis feed motor 26, and an operation. Panels 8 are connected to each other.

  Next, storage areas of the ROM 13 and the RAM 14 will be described. As shown in FIG. 4, the ROM 13 changes the setting values of the control program storage area 131 for storing a control program for controlling the sewing operation of the sewing machine 1 and various memories SW corresponding to the operating conditions of the sewing machine 1. A set value change program storage area 132 for storing a set value change program for change, a change memory SW group setting program storage area 133 for storing a change memory SW group setting program for selecting a memory SW group to be changed, and the like Etc. are provided. The RAM 14 is provided with various storage areas for storing sewing positions necessary for the sewing process, calculation results calculated by the CPU 12, pointers, counters, and the like.

  Next, the storage area of the flash memory 15 will be described. As shown in FIG. 5, the flash memory 15 includes a control memory SW group storage area 151 for storing a control memory SW group including a plurality of memories SW in which various operations of the sewing machine 1 are set, and a default memory. A default memory SW group storage area 152 for storing SW group 0, a memory SW group list storage area 153 for storing a memory SW group list 1531 in which six memory SW groups 1 to 6 for changing settings are set, and an IC An IC tag number table storage area 154 for storing an IC tag number table 1541 indicating a correspondence relationship between the tag number and the memory SW group number is provided.

  Next, the control memory SW group will be described. As shown in FIG. 6, the control memory SW group is configured by 102 memory SWs that are set in the control memory SW group storage area 151 of the flash memory 15 and are assigned memory SW numbers. Note that the number of memories SW is not limited to this. Each memory SW corresponds to various operating conditions of the sewing machine 1. Furthermore, set values relating to the respective operation conditions are set in the memories SW. In the control memory SW group shown in FIG. 6, the rotational speed (× 100 rpm) of the sewing machine motor 24 for each stitch from the start of sewing is set in the memory SW of the memory SW numbers 1 to 4. In addition, the feed timing of the presser foot 7 for each stitch from the start of sewing is set as a numerical value in each of the memory SWs with memory SW numbers 5 to 8. Similarly, the setting values corresponding to the respective operation conditions of the sewing machine 1 are set for the memory SW number 9 and subsequent memory SW numbers.

  Specifically, “4” is set for the memory SW number 1, “8” for the memory SW number 2, “10” for the memory SW number 3, and “20” for the memory SW number 4. That is, the sewing machine has a rotational speed of 400 (rpm) at the first stitch at the start of sewing, a rotational speed of 800 (rpm) at the second stitch, a rotational speed of 1000 (rpm) at the third stitch, and a rotational speed of 2000 (rpm) at the fourth stitch. The rotational speed of the motor 24 is driven and controlled. As a result, it is possible to execute the sewing while gradually increasing the speed so that the moving speed of the needle bar 6a and the sewing needle 6b interlocked with the drive of the sewing machine motor 24 does not start suddenly at a high speed from the start of sewing.

  In the memory SW numbers 5 to 8, the feed timing of the presser foot device 7 is set within the range of +5 to -5. And the timing with which the presser foot is fed to the needle bar 6a and the sewing needle 6b is earlier as the feeding timing is on the plus side. On the contrary, the more the feed timing is on the negative side, the later the timing at which the presser foot device 7 is fed to the needle bar 6a and the sewing needle 6b. Generally, if the feeding timing is advanced, the sewing needle 6b is lowered after the work cloth is completely fed, so that the pattern accuracy is improved. However, since the yarn is pulled up rapidly by a balance (not shown), the yarn tends to bend and the tightness of the yarn tends to deteriorate. On the contrary, if the feeding timing is delayed, the thread tightening is improved. However, since the timing at which the sewing needle 6b descends is delayed, the pattern accuracy tends to decrease. By changing the feed timing having such properties according to the type (material), thickness, type of thread, etc. of the work cloth, the work cloth can be appropriately sewn.

  Next, the default memory SW group 0 will be described. Although not shown, the default memory SW group 0 is assigned the memory SW group number 0 and is stored in the default memory SW group storage area 152 of the flash memory 15. It is composed of 102 memories SW assigned the same memory SW number as the control memory SW group. This default memory SW group 0 is composed of 102 memories SW set with reference values for various operating conditions of the sewing machine 1, and is copied to the control memory SW group every time it is initialized. Is done.

  Next, the memory SW group list 1531 will be described. As shown in FIG. 7, the memory SW group list 1531 includes only the memory SW that changes the setting contents among the plurality of memories SW that constitute the control memory SW group. Memory SW groups 1 to 6 for setting change corresponding to (see FIG. 8) are set. The memory SW groups 1 to 3 are composed of four memories SW having memory SW numbers 1 to 4, and the memory SW groups 4 to 6 are composed of four memories SW having memory SW numbers 5 to 8. Note that the memory SW numbers of the memory SW groups 1 to 6 correspond to the memory SW numbers of the memory SW constituting the control memory SW group. Accordingly, the memory SW groups 1 to 3 are composed of four memories SW for setting the rotation speed of the sewing machine motor 24, and the memory SW groups 4 to 6 are four memories SW for setting the feed timing of the presser foot device 7. It is configured.

  In the memory SW groups 1 to 3, combinations of set values of the four memories SW are different from each other. For example, in the memory SW group 1, “4” is set for the memory SW number 1, “4” for the memory SW number 2, “4” for the memory SW number 3, and “8” for the memory SW number 4. In the memory SW group 2, “4” is set for the memory SW number 1, “8” is set for the memory SW number 2, “20” is set for the memory SW number 3, and “32” is set for the memory SW number 4. Further, in the memory SW group 3, “20” is set for the memory SW number 1, “32” for the memory SW number 2, “32” for the memory SW number 3, and “32” for the memory SW number 4.

  That is, the memory SW group 1 is a memory SW group that sets the rotational speed of the sewing machine motor 24 at the start of sewing to “low speed”, and the memory SW group 2 sets the rotational speed of the sewing machine motor 24 at the start of sewing to “medium speed”. The memory SW group 3 is a memory SW group that makes the rotational speed of the sewing machine motor 24 "high speed" at the start of sewing. Therefore, for example, when the rotational speed of the sewing machine motor 24 at the start of sewing is to be set to “low speed”, the memory SW group 1 is selected from the memory SW group list 1531 and the memory SW numbers 1 to 4 of the control memory SW group are selected. By rewriting the contents of the memory SW to the contents of the memory SW group 1, the rotational speed of the sewing machine motor 24 can be set to "low speed".

  Also in the memory SW groups 4 to 6, combinations of the set values of the four memories SW are different from each other. For example, in the memory SW group 4, “−5” is set in the memory SW number 5, “−5” is set in the memory SW number 6, “0” is set in the memory SW number 7, and “0” is set in the memory SW number 8. . In the memory SW group 5, “5” is set for the memory SW number 5, “5” for the memory SW number 6, “5” for the memory SW number 7, and “5” for the memory SW number 8. Further, in the memory SW group 6, "-5" is set to the memory SW number 5, "-5" is set to the memory SW number 6, "-5" is set to the memory SW number 7, and "-5" is set to the memory SW number 8. ing.

  That is, the memory SW group 4 is a memory SW group that sets the feed timing of the presser foot device 7 to “late the first and second stitches”, and the memory SW group 5 sets the feed timing of the presser foot device 7 to “early”. The memory SW group 6 is a memory SW group for setting the feed timing of the presser foot device 7 to “slow”. Therefore, for example, when the feed timing of the presser foot device 7 at the start of sewing is to be set to “late the first and second stitches”, the memory SW group 4 is selected from the memory SW group list 1531 and the control memory SW By rewriting the contents of the memory SW of the group memory SW numbers 5 to 6 to the contents of the memory SW group 4, the feed timing of the presser foot device 7 can be set to "late the first and second stitches". Note that the different combinations of parameters to be changed include not only that the setting values of the memory SW groups 1 to 3 are different, but also that the memory SW group 1 and the memory SW group 4 are different in the memory SW itself.

In this way, one memory SW group is selected from the memory SW group list 1531, and the contents of the control memory SW group are partially changed according to the selected memory SW group. Then, only the contents of the memory SW subject to setting change are changed, and the contents of the memory SW not subject to setting change are not changed. That is, in the memory SW group list 1531, among the control memory SW groups, a memory SW group including only the memory SWs whose settings are to be changed can be set in a plurality of patterns. As a result, the number of each memory SW set in the memory SW group list 1531 can be kept to the minimum necessary, so that the memory SW group list storage area 153 of the flash memory 15 can be saved. Further, since the memory SW group list storage area 153 can be saved, more variations of the memory SW group can be stored. Thereby, even when the number of users and the number of sewing items increase, it can respond. Further, since the combination pattern of the memory SW can be set in various ways, the operating conditions of the sewing machine 1 can be freely set according to the user's preference.

  Next, the IC tag number table 1541 will be described. As shown in FIG. 8, in the IC tag number table 1541, the IC tag number of the IC tag 9 read by the IC tag reading device 16, the setting name of the item corresponding to the IC tag number, the memory SW group number, Is set for each. Further, when the IC tag 9 cannot be read (−), the memory SW group number 0 is set. As the memory SW group number 0, the above-described default memory SW group 0 is set.

  The user names A, B, and C are set for the IC tag numbers 1 to 3, respectively. For Mr. A, the memory SW number 1 of the memory SW group 1 for setting the rotation speed of the sewing machine motor 24 to “low speed” is set. For Mr. B, the memory SW group number 2 of the memory SW group 2 for setting the rotational speed of the sewing machine motor 24 to “medium speed” is set. For Mr. C, the memory SW group number 1 of the memory SW group 1 for setting the rotational speed of the same sewing machine motor 24 as that of Mr. A to “low speed” is set.

  For example, when an ID card owned by Mr. A who is a sewing machine beginner is held over the IC tag reader 16, the identification information of the IC tag 9 attached to the ID card is read by the IC tag reader 16. Next, when the IC tag number 1 is recognized from the read identification information, the memory SW group number 1 corresponding to the IC tag number 1 is selected, and the memory SW group 1 is called. Then, the contents of the memory SW of the memory SW numbers 1 to 4 in the control memory SW group are rewritten to the contents of the memory SW group 1, whereby the rotation speed of the sewing machine motor 24 can be set to "low speed". That is, the rotational speed of the sewing machine motor 24 at the start of sewing is automatically switched depending on who among the A, B, and C uses the sewing machine 1.

  The IC tag numbers 4 to 6 are set with a sewing item 1, a sewing item 2, and a sewing item 3, which are the type and thickness of the work cloth and the type of thread, respectively. In the sewing item 1, the memory SW group number 1 for setting the rotation speed of the sewing machine motor 24 to “low speed” is set. The sewing item 2 is set with a memory SW group number 4 for setting the feed timing of the presser foot device 7 to “slightly slower for the first and second stitches”. In the sewing item 3, a memory SW group number 6 for setting the feed timing of the presser foot device 7 to “slow” is set. For example, when the IC tag number 6 of the IC tag 9 attached to the cloth of the sewing item 3 is read and recognized by the IC tag reading device 16, the memory SW group number 6 is selected.

  In this way, the IC tag reader 16 reads the IC tag number of the IC tag 9 attached to the user's ID card or sewing item, and the contents of the control memory SW group correspond to the read IC tag number. The contents of the memory SW group with the memory SW group number to be automatically rewritten can be rewritten. As a result, the operating conditions of the sewing machine 1 can be automatically changed according to the registered user and the registered sewing item without selecting the memory SW group whose setting is to be changed on the operation panel 8.

  Next, the control operation of the sewing machine 1 by the CPU 12 will be described with reference to the flowcharts of FIGS. 9 is a main flowchart showing the control operation of the sewing machine 1 by the CPU 12, FIG. 10 is a flowchart showing the continuation of FIG. 9, FIG. 11 is a flowchart of the setting value changing process, and FIG. FIG. 13 is a flowchart of a change memory SW group setting process. FIG. 13 is an explanatory diagram showing a change mode of a memory SW (memory SW corresponding to the memory SW group 1) in the control memory SW group. FIG. It is explanatory drawing which shows the change aspect of memory SW in the memory SW group (memory SW corresponding to the memory SW group 5).

  As shown in FIG. 9, first, when the power of the sewing machine 1 is turned on, initialization is performed. Here, the default memory SW group 0 is set in the control memory SW group storage area 151 of the flash memory 15 (S1). Next, it is determined whether or not the IC tag reader 16 is operating (S2). For example, when the ID card owned by the registered user A is held over the IC tag reading device 16, the IC tag reading device 16 operates (S2: YES), so the IC of the IC tag 9 attached to the ID card A tag number is read (S3). Here, the IC tag number of the IC tag 9 attached to the ID card owned by Mr. A is 1. Therefore, the memory SW group number 1 corresponding to the IC tag number 1 is selected from the IC tag number table 1541 stored in the flash memory 15, and the memory SW group corresponding to the memory SW group number 1 is selected from the memory SW group list 1531. 1 is selected (S4).

  Then, in the control memory SW group stored in the flash memory 15, only the setting value of the memory SW corresponding to the memory SW group 1 is changed to the setting value of the memory SW of the memory SW group 1 (S5). As shown in FIG. 13, for example, since the memory SW numbers of the memory SW constituting the memory SW group 1 are 1 to 4, the setting values of the memory SW corresponding to the memory SW numbers 1 to 4 of the control memory SW group Is changed to the set value of the memory SW of the memory SW group 1. Thereby, the setting values of the memory SW corresponding to the memory SW numbers 1 to 4 in the control memory SW group are changed from “4”, “8”, “10”, “20” to “4”, “4”, It is changed to “4” and “8”. Since the memory SW number 5 and later are not changed, they remain the default.

  Next, it is determined whether or not the set value change mode is set (S6). This set value change mode is a mode in which the set values of the memory SW belonging to the desired memory SW group can be individually changed. The setting change mode is set by pressing the select key 34 of the operation panel 8 shown in FIG. 2 and pressing the enter key 50 in a state where the LED provided next to the character “ADJUST” is lit. . When the set value change mode is set (S6: YES), the set value change program stored in the ROM 13 is read and the setting change process is executed (S7).

  Next, the setting change process will be described. As shown in FIG. 11, first, the memory SW group number is displayed on the number display section 35 (S41). Then, it is determined whether or not the increase key 37 or the decrease key 38 is pressed (S42). When the increase key 37 is pressed (S42: YES), the number displayed on the number display unit 35 is incremented by one and displayed again (S41). When the decrease key 38 is pressed (S42: YES), the number displayed on the number display unit 35 is lowered and displayed again (S41). When neither the increase key 37 nor the decrease key 38 is pressed (S42: NO), it is determined whether or not the enter key 50 is pressed (S43). If the enter key 50 is not pressed (S43: NO), the process returns to S41, and the number of the memory SW group is continuously displayed on the number display unit 35, while the increase key 37 or the decrease key 38 and the enter key 50 are monitored. (S42, S43).

  For example, a case where the set value of the memory SW of the memory SW number 4 belonging to the memory SW group 1 is changed will be described. In this case, the user presses the enter key 50 in a state where “1” is displayed on the number display unit 35. When the enter key 50 is pressed (S43: YES), the memory SW group 1 is determined. Next, the memory SW number of the memory SW group 1 is displayed on the number display unit 35 (S44). Then, it is determined whether or not the increase key 37 or the decrease key 38 is pressed (S45). When the increase key 37 is pressed (S45: YES), the number displayed on the number display unit 35 is incremented by one and displayed again (S44). When the decrease key 38 is pressed (S45: YES), the number displayed on the display device 40 is lowered by one and displayed again (S44). When neither the increase key 37 nor the decrease key 38 is pressed (S45: NO), it is determined whether or not the enter key 50 is pressed (S46). If the enter key 50 is not depressed (S46: NO), the process returns to S44, and the depression of the increase key 37, the decrease key 38, or the enter key 50 is monitored while displaying the memory SW number on the number display unit 35 (S45). , S46).

  Then, when the enter key 50 is pressed while “4” is displayed on the number display section 35 (S46: YES), the setting value of the memory SW of the memory SW number 4 is displayed on the display device 40 ( S47). For example, when the current setting value of the memory SW with the memory SW number 4 is “20”, “20” is displayed on the display device 40. Then, it is determined whether or not the increase key 41 or the decrease key 42 is pressed (S48). When the increase key 41 is pressed (S48: YES), the number displayed on the display device 40 is incremented by one and displayed again (S47). When the decrease key 42 is pressed (S48: YES), the number displayed on the display device 40 is lowered by one and displayed again (S47). When neither the increase key 41 nor the decrease key 42 is pressed (S48: NO), it is determined whether or not the enter key 50 is pressed (S49). When the enter key 50 is not pressed (S49: NO), the process returns to S47, and the pressing of the increase key 41, the decrease key 42, or the enter key 50 is monitored while the set value is displayed on the display device 40 (S48, S49). .

  For example, when the enter key 50 is pressed while “10” is displayed on the display device 40 (S49: YES), the content of the memory SW corresponding to the memory SW number 4 is changed to “10”. (S50). That is, the setting value of the memory SW of the memory SW number 4 belonging to the memory SW group 1 set in the memory SW group list 1531 is changed from “20” to “10”.

  Subsequently, it is determined whether or not the setting change mode has ended (S51). To end the setting change mode, the user presses the select key 34 to turn off the LED next to “ADJUST”. In the setting change mode (S51: NO), the number of the memory SW group is displayed on the number display unit 35 (S44) to enter a standby state. If the setting change mode is completed (S51: YES), the process returns to the flow of FIG. 9 and proceeds to S8.

  Next, it is determined whether or not the memory SW group selection mode is selected (S8). This memory SW group selection mode is a mode in which the memory SW group whose setting is to be changed is set by itself from the memory SW group list 1531 stored in the flash memory 15, and the contents of the control memory SW group can be changed. The memory SW group selection mode is set by pressing the select key 34 of the operation panel 8 and pressing the enter key 50 twice in a state where the LED provided beside the character “ADJUST” is lit. . If the memory SW group selection mode is set (S8: YES), the changed memory SW group setting program stored in the ROM 13 is read and the changed memory SW group setting process is executed (S9).

  Next, the change memory SW group setting process will be described. As shown in FIG. 12, first, the memory SW group number is displayed on the number display section 35 (S55). Then, it is determined whether or not the increase key 37 or the decrease key 38 is pressed (S56). When the increase key 37 is pressed (S56: YES), the number displayed on the number display unit 35 is incremented by one and displayed again (S55). When the decrease key 38 is pressed (S56: YES), the number displayed on the number display unit 35 is lowered by one and displayed again (S55). If neither the increase key 37 nor the decrease key 38 is pressed (S56: NO), it is determined whether or not the enter key 50 is pressed (S57). If the enter key 50 is not pressed (S57: NO), the process returns to S55, and the display of the memory SW group number is continuously displayed on the number display unit 35, and the press of the increase key 37 or the decrease key 38 or the enter key 50 is monitored. (S56, S57).

  For example, a case where the feeding timing of the presser foot device 7 is changed to “early” will be described. In this case, the enter key 50 is pressed while “5” is displayed on the number display section 35. When the enter key 50 is pressed (S57: YES), the memory SW group 5 is selected from the memory SW group list 1531 (S58). Next, in the control memory SW group, only the setting value of the memory SW corresponding to the memory SW group 5 is changed to the setting value of the memory SW of the memory SW group 5 (S59). As shown in FIG. 14, since the four memory SW numbers constituting the memory SW group 5 are 5 to 8, only the setting values of the memory SW corresponding to the memory SW numbers 5 to 8 of the control memory SW group are obtained. The value is changed to the set value of the memory SW group 5. Thereby, the setting values of the memory SW corresponding to the memory SW numbers 5 to 8 of the control memory SW group are changed from “0”, “0”, “0”, “0” to “5”, “5”, “5” is changed to “5”. Note that the contents of the memory SWs with the memory SW numbers 1 to 4 are changed according to the IC tag 9 of Mr. A, so that the memory SW numbers after 9 are left as defaults.

  If the IC tag reader 16 does not operate (S2: NO), it is not a registered user and is not a registered sewing item, so the control memory SW group remains the default memory SW group 0. It is determined whether the setting value change mode has been selected (S6) and whether the memory SW group setting mode has been selected (S8). If neither the setting change mode nor the memory SW group setting mode is set (S6: NO, S8: NO), the control memory SW group remains the default.

  Next, it is determined whether the start / stop switch 22 is turned on (S10). While the start / stop switch is not turned on (S10: NO), the process returns to S2 to determine the operation of the IC tag reader 16 (S2), the setting value change mode determination (S6), and the memory SW group setting mode determination ( S8) is performed to determine the contents of the control memory SW group. When the start / stop switch 22 is turned on (S10: YES), the sewing process of the sewing machine 1 is executed according to the contents of the control memory SW group (S11). The sewing process is executed based on the sewing data stored in the flash memory 15. Further, a process of selecting sewing data for executing sewing from a plurality of sewing data stored in the flash memory 15 may be inserted between S1 and S2.

  Next, the sewing process will be described. As shown in FIG. 10, first, it is determined whether the first stitch, the second stitch, the third stitch, the fourth stitch, or the fifth stitch from the start of sewing (S15 to S18). The count for each stitch from the start of sewing is detected by counting the vertical movement of the needle bar 6a and the sewing needle 6b with a counter. The positions of the needle bar 6 a and the sewing needle 6 b can be detected by detecting the rotation angle of the drive shaft of the sewing machine motor 24 with the rotation position detection sensor 23.

  If it is the first stitch from the start of sewing (S15: YES), the rotational speed (sewing speed) of the sewing machine motor 24 is set to the set value of the memory SW corresponding to the memory SW number 1 in the control memory SW group. (S19). That is, as shown in FIG. 14, it sets to 400 rpm. Next, the feed timing of the presser foot device 7 is set to the set value of the memory SW corresponding to the memory SW number 5 (S20). That is, it is set to +5 (fast).

  If it is the second stitch from the start of sewing (S15: NO, S16: YES), the rotational speed of the sewing machine motor 24 is set to the set value of the memory SW corresponding to the memory SW number 2 in the control memory SW group (S21). ). That is, it is set to 400 rpm. Next, the feeding timing of the presser foot device 7 is set to the set value of the memory SW corresponding to the memory SW number 6 (S22). That is, it is set to +5 (fast).

  If it is the third stitch from the start of sewing (S15: NO, S16: NO, S17: YES), the rotational speed of the sewing machine motor 24 is set to the set value of the memory SW corresponding to the memory SW number 3 in the control memory SW group. Set (S23). That is, it is set to 400 rpm. Next, the feeding timing of the presser foot device 7 is set to the set value of the memory SW corresponding to the memory SW number 7 (S24). That is, it is set to +5 (fast).

  If it is the fourth stitch from the start of sewing (S15: NO, S16: NO, S17: NO, S18: YES), the rotational speed of the sewing machine motor 24 is set to the memory SW corresponding to the memory SW number 4 in the control memory SW group. (S25). That is, 800 rpm is set. Next, the feeding timing of the presser foot device 7 is set to the set value of the memory SW corresponding to the memory SW number 8 (S26). That is, it is set to +5 (fast).

  If it is the fifth stitch after the start of sewing (S15: NO, S16: NO, S17: NO, S18: NO), the rotational speed of the sewing machine motor 24 is a memory corresponding to the memory SW number 9 in the control memory SW group. The set value of SW is set (S27). That is, it is set to 3200 rpm. Next, the feed timing of the presser foot device 7 is set to the set value of the memory SW corresponding to the memory SW number 10 (S28). That is, it is set to 0 (normal).

  Then, as described above, the drive shaft of the sewing machine motor 24 is rotated according to the rotation speed of the sewing machine motor 24 set in the control memory SW group (S29). Along with this, the needle bar 6a and the sewing needle 6b reciprocate up and down. Further, the presser foot device 7 is fed according to the feed timing of the presser foot device 7 set in the control memory SW group (S30). Thus, the sewing operation is executed along the desired sewing pattern with the contents set in the control memory SW group.

  Then, it is determined whether or not the sewing operation is finished (S31). Here, if the sewing operation has not been completed yet (S31: NO), the process returns to S15, and the rotational speed of the sewing machine motor 24 and the feed timing of the presser foot device 7 are again determined depending on the number of stitches from the start of sewing. Is set and sewing operation continues. When the sewing operation is completed (S31: YES), the process proceeds to S2.

  In the above description, the memory SW for setting the operating conditions of the sewing machine 1 corresponds to the “parameter” of the present invention, the memory SW group corresponds to the “parameter group” of the present invention, and the flash shown in FIG. The control memory SW group storage area 151 of the memory 15 corresponds to the “first storage means” of the present invention, and the memory SW group list storage area 153 corresponds to the “second storage means” of the present invention. Further, the CPU 12 executing the process of S3 shown in FIG. 9 corresponds to the “identification number reading means” of the present invention, and the CPU 12 executing the process of S4 shown in FIG. 9 and S58 shown in FIG. The CPU 12 that executes the processing of S5 shown in FIG. 9 and S59 shown in FIG. 12 corresponds to “changing means” of the present invention. Further, the CPU 12 that executes the processes of S44 to S46 shown in FIG. 11 corresponds to the “setting unit” of the present invention.

  As described above, in the sewing machine control device 10 of the present embodiment, the control memory SW group for setting the operating conditions of the sewing machine 1 is stored in the flash memory 15. Then, according to the contents of the control memory SW group, the CPU 12 controls the rotation speed of the sewing machine motor 24, the feed timing of the cloth feed device 7, and the like. The flash memory 15 stores a memory SW group list 1531. Further, in the memory SW group list 1531, in order to change the contents of the control memory SW group, a plurality of memory SW groups configured only by the memory SW whose setting is to be changed are set.

  When the contents of the control memory SW group are changed by a user or a sewing item, the contents of the control memory SW group are not rewritten, but the memory of the memory SW group selected from the memory SW group list 1531 Only the part corresponding to SW is changed. Thereby, the contents of the control memory SW group can be changed efficiently and quickly. Further, in the control memory SW group, only the contents of the memory SW of the selected memory SW group are changed, and the contents of the memory SW that is not subject to setting change are not changed. That is, in the memory SW group list 1531, among the control memory SW groups, a memory SW group including only the memory SWs whose settings are to be changed can be set in a plurality of patterns. As a result, the number of each memory SW set in the memory SW group list 1531 can be kept to the minimum necessary, so that the memory SW group list storage area 153 of the flash memory 15 can be saved.

  Further, the IC tag reading device 16 reads the IC tag number of the IC tag 9 attached to the user's ID card or sewing item, and the contents of the control memory SW group correspond to the read IC tag number. The contents of the memory SW group of the SW group number can be automatically rewritten. As a result, the operating conditions of the sewing machine 1 can be automatically changed according to the registered user and the registered sewing item without selecting the memory SW group whose setting is to be changed on the operation panel 8.

  The sewing machine control apparatus of the present invention is not limited to the above embodiment, and various modifications can be made. In the above embodiment, the six memory SW groups 1 to 6 are set in the memory SW group list 1531, but it is naturally possible to set more memory SW groups. Further, the number of memories SW constituting the memory SW groups 1 to 6 may be set differently.

  Furthermore, in the above-described embodiment, the operating conditions of one sewing machine 1 are set for one memory SW group, but a plurality of operating conditions may be set in one memory SW group. .

  In the above embodiment, for the sake of convenience of explanation, the rotation speed of the sewing machine motor 24 and the feed timing of the cloth feeding device 7 are set as examples as the operation conditions of the sewing machine 1 set in the memory SW. It is also possible to set conditions.

  Further, in the above-described embodiment, the memory SW groups 0 to 6 set in the memory SW group list 1531 are set for each user and each sewing item, but can be set for each model of the sewing machine 1, for example. is there.

  Alternatively, the maximum value and the minimum value may be set as the setting value set in the memory SW, and the setting value may be set within the range.

  Further, in the above embodiment, in the process of S59, only the setting value of the memory SW corresponding to the memory SW group of the control memory SW group is changed to the setting value of the memory SW of the memory SW group. It is preferable to set the default memory SW group in the control memory SW group before.

  Alternatively, the previously changed memory SW group may be stored, and only the memory SW of the memory SW group may be set as the default memory SW.

  The sewing machine control apparatus of the present invention is not limited to an industrial sewing machine but can be applied to a household sewing machine.

1 is an overall perspective view of a sewing machine 1. FIG. 3 is a front view of an operation panel 8. FIG. 2 is a block diagram showing an electrical configuration of the sewing machine 1. FIG. 3 is a conceptual diagram showing a storage area of a ROM 13. FIG. 2 is a conceptual diagram showing a storage area of a flash memory 15. FIG. It is a conceptual diagram of memory SW group 0 which is default. 14 is a conceptual diagram of a memory SW group list 1531. FIG. It is a conceptual diagram of the IC tag number table 1541. 3 is a main flowchart showing a control operation of the sewing machine 1 by a CPU 12. 10 is a flowchart showing a continuation of FIG. 9. It is a flowchart of a setting value change process. It is a flowchart of change memory SW group setting processing. It is explanatory drawing which shows the change aspect of memory SW (memory SW corresponding to the memory SW group 1) in the memory SW group for control. It is explanatory drawing which shows the change aspect of memory SW (memory SW corresponding to the memory SW group 5) in the memory SW group for control.

Explanation of symbols

1 sewing machine 7 cloth presser device 8 operation panel 9 IC tag 10 sewing machine control device 12 CPU
13 ROM
DESCRIPTION OF SYMBOLS 15 Flash memory 16 IC tag reader 24 Sewing motor 151 Control memory SW group storage area 152 Default memory SW group storage area 153 Memory SW group list storage area 154 IC tag number table storage area

Claims (6)

First storage means for storing a plurality of parameters for respectively setting a plurality of operating conditions of the sewing machine as a set of parameters;
Of the parameter group stored in the first storage means, a second storage means for storing a change parameter group composed of one or two or more change target parameters to be set and changed in a plurality of patterns;
Selecting means for selecting one of the change parameter groups from among the plurality of change parameter groups stored in the second storage means;
A change that changes the content of the parameter corresponding to the change target parameter in the change parameter group selected by the selection unit among the parameter group stored in the first storage unit to the content of the change target parameter. And a sewing machine control device.   The sewing machine control device according to claim 1, wherein the second storage unit stores a plurality of patterns of the change parameter group having different combinations of the change target parameters.   The sewing machine control apparatus according to claim 1 or 2, further comprising setting means for arbitrarily setting the parameter to be changed. The parameter group includes a plurality of rotational speed parameters for setting the rotational speed of the drive motor at the start or end of sewing by the sewing machine for each stitch,
4. The change parameter group including the change target parameter corresponding to the rotation speed parameter is stored in the second storage unit in a plurality of patterns, respectively. The sewing machine control device described.   The sewing machine control device according to claim 1, wherein the selection unit is provided on an operation panel for operating the sewing machine. An identification number reading means for reading the identification number from the IC tag;
The second storage means stores a plurality of change parameter groups respectively corresponding to the plurality of identification numbers,
6. The sewing machine control device according to claim 1, wherein the selection unit selects the change parameter group corresponding to the identification number read by the identification number reading unit.

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