JP2015066355A - Sewing machine and method of controlling sewing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sewing machine and a method of controlling the sewing machine capable of precisely and easily setting a required function for a plurality of programs in which the contents and the procedures of sewing operation are defined.SOLUTION: An auxiliary function table 60 defines whether each of a plurality of auxiliary functions is a common auxiliary function or a program auxiliary function. A common auxiliary table stores the setting items of the common auxiliary function defined by the auxiliary function table. A program auxiliary table stores the setting items of the program auxiliary function defined by the auxiliary function table for each of a plurality of sewing programs. When sewing operation is executed according to a sewing program to be executed, a CPU executes each of the setting contents of the common auxiliary function and the program auxiliary function.

Description

  The present invention relates to a sewing machine capable of automatically controlling a sewing operation and a method for controlling the sewing machine.

  2. Description of the Related Art Conventionally, a sewing machine that automatically controls a sewing operation based on a program that defines the contents and procedure of the sewing operation is known. The sewing machine executes a sewing operation based on a program selected by the operator from among a plurality of programs. The sewing machine controls the sewing operation based on the sewing parameters. For example, the operator can change the setting value of the sewing parameter displayed on the screen by operating a button or the like. Based on the set value of the sewing parameter, the sewing machine controls the sewing operation (see, for example, Patent Document 1).

JP 2002-143581 A

  When the operator changes the setting value of the sewing parameter, if the changed setting value is applied to only one program, there is a problem in that it takes time to change the setting value for each program. On the other hand, when the changed set value is applied to all programs, there is a problem that the changed set value is applied to a program that should not be changed.

  It is an object of the present invention to provide a sewing machine and a sewing machine control method capable of accurately and easily setting necessary functions for a plurality of programs that define the contents and procedures of a sewing operation.

  The sewing machine according to the first aspect of the present invention includes a cloth feed mechanism capable of transferring a cloth, and a needle bar which is attached with a sewing needle and is capable of reciprocating with respect to the cloth. The cloth feed mechanism transfers the cloth. A program storage means for storing a plurality of programs in a sewing machine that can automatically control the sewing operation based on a program that defines the contents and procedure of the sewing operation for sewing the cloth by reciprocating the needle bar. And each of the plurality of auxiliary functions related to the sewing operation is applied to all of the plurality of programs stored in the program storage unit, and the plurality of programs stored in the program storage unit. Table storage means for storing a function table that defines which of the second functions to be applied individually, and the first function defined by the function table First function storage means for storing line contents; second function storage means for storing execution contents of the second function defined by the function table for each of the plurality of programs stored by the program storage means; and the program Based on the program to be executed among the plurality of programs stored in the storage means, the needle bar and the cloth feed mechanism are controlled to execute the sewing operation, and in the sewing operation, the first function memory is stored. The execution contents of the first function stored by the means and the execution contents of the second function corresponding to the execution target program among the execution contents of the second function stored by the second function storage means are executed. Sewing control means.

  In the sewing machine, the function table determines whether each of the plurality of auxiliary functions related to the sewing operation is a first function applied to all programs or a second function applied to individual programs. . The first function storage means stores the execution contents of the first function determined by the function table. The second function storage means stores the execution contents of the second function determined by the function table for each of the plurality of programs. When executing the sewing operation based on the execution target program, the sewing machine executes the execution content of the first function and the execution content of the second function corresponding to the execution target program. Thereby, the sewing machine can set separately the execution contents of the auxiliary functions applied to all programs and the execution contents of the auxiliary functions applied to individual programs. Therefore, the operator can accurately and easily set necessary functions for a plurality of programs that define the contents and procedures of the sewing operation.

  The sewing machine includes a first function change unit capable of changing an execution content of the first function stored in the first function storage unit, and a second function storage for each of the plurality of programs stored in the program storage unit. You may provide the 2nd function change means which can change the execution content of said 2nd function which a means memorize | stores. In this case, the sewing machine can separately change the execution contents of the first function and the execution contents of the second function. Therefore, the sewing machine can easily and accurately change the execution contents of the auxiliary functions applied to all programs and the execution contents of the auxiliary functions applied to individual programs.

  The sewing machine may include classification changing means capable of changing whether each of the plurality of auxiliary functions is the first function or the second function in the function table stored by the table storage means. In this case, it is possible to change whether each auxiliary function is the first function or the second function. Therefore, the operator can easily and accurately classify whether each auxiliary function is applied to all programs or individual programs.

  In the sewing machine, when the classification changing unit changes the auxiliary function from the first function to the second function, the plurality of programs stored in the second function storage unit stores the execution contents of the changed auxiliary function. The first function is added to the execution contents of the second function corresponding to all of the above, and the changed execution contents of the auxiliary function are deleted from the execution contents of the first function stored in the first function storage means. You may provide a setting change means. In this case, when the auxiliary function is changed from the first function to the second function, the execution contents of the changed auxiliary function are applied to individual programs as they are. Therefore, when the operator changes the auxiliary function from the first function to the second function, it is not necessary to reset the execution contents of the changed auxiliary function for each program.

  In the sewing machine, when the classification changing unit changes the auxiliary function from the second function to the first function, the first function storage unit stores the execution content predetermined for the changed auxiliary function. In addition to the execution content of the first function, the changed execution content of the auxiliary function is deleted from the execution content of the second function corresponding to all of the plurality of programs stored in the second function storage unit, respectively. You may provide the 2nd setting change means to do. In this case, when the auxiliary function is changed from the second function to the first function, the execution content predetermined for the changed auxiliary function is applied to all programs. Therefore, when the worker changes the auxiliary function from the second function to the first function, it is not necessary to reset the execution content of the changed auxiliary function.

  In the sewing machine, the sewing control means is any one of the execution contents of the first function stored in the first function storage means and the execution contents of the second function corresponding to the program designated by the program designation means. When only one can be executed, the execution contents of the second function may be executed with priority. In this case, if it is difficult to achieve both the execution contents of the first function and the execution contents of the second function, the sewing machine executes the execution contents of the second function with higher priority than the execution contents of the first function. The malfunction of operation can be suppressed.

  The sewing machine control method according to the second aspect of the present invention includes a cloth feed mechanism capable of transporting a cloth and a needle bar which is attached with a sewing needle and is capable of reciprocating with respect to the cloth. In a control method executed by a sewing machine that can automatically control the sewing operation based on a program that defines the contents and procedure of the sewing operation for sewing the cloth by reciprocating the needle bar and moving the needle bar, A plurality of auxiliary functions related to a sewing operation are applied to all of the plurality of programs stored in the program storage means storing a plurality of the programs, and the plurality of programs stored in the program storage means Table storage means for storing a function table that defines which of the second functions is applied individually to the first function, and the first function defined by the function table First function storage means for storing execution contents; and second function storage means for storing execution contents of the second function determined by the function table for each of the plurality of programs stored in the program storage means. The sewing machine control method further comprises the step of controlling the needle bar and the cloth feed mechanism to execute the sewing operation based on the program to be executed among the plurality of programs stored in the program storage means. And, in the sewing operation, it corresponds to the execution target program among the execution contents of the first function stored in the first function storage means and the execution contents of the second function stored in the second function storage means. And executing the second function.

  In the control method of the sewing machine, whether each of a plurality of auxiliary functions related to the sewing operation is a first function applied to all programs or a second function applied to individual programs The table defines. The first function storage means stores the execution contents of the first function determined by the function table. The second function storage means stores the execution contents of the second function determined by the function table for each of the plurality of programs. When the sewing operation is executed based on the execution target program, the execution content of the first function and the execution content of the second function corresponding to the execution target program are executed. Thereby, the execution content of the auxiliary function applied to all the programs and the execution content of the auxiliary function applied to the individual programs can be set separately by the operator. Therefore, the operator can accurately and easily set necessary functions for a plurality of programs that define the contents and procedures of the sewing operation.

The perspective view of the sewing machine 1. FIG. The perspective view which shows the 1st state of the cloth feed mechanism 30. FIG. The perspective view which shows the 2nd state of the cloth feeding mechanism. The perspective view which shows the 3rd state of the cloth feed mechanism 30. FIG. 1 is a block diagram of an electrical configuration of a sewing machine 1. FIG. The data block diagram of the sewing program 80. FIG. The data block diagram of the auxiliary function table 60. FIG. The data block diagram of the common auxiliary | assistant table 70. FIG. The data block diagram of the program auxiliary table 90. FIG. 4 is a flowchart of main processing of the sewing machine 1; The figure which shows the specific example of the home screen. The flowchart of a classification setting process. The figure which shows the specific example of the classification setting screen 210. FIG. The figure which shows the specific example of the home key 150 of the operation part 10. FIG. The flowchart of a common auxiliary | assistant setting process. The figure which shows the specific example of the common auxiliary | assistant setting screen 220. FIG. The flowchart of a program operation process. The figure which shows the specific example of the program list screen 230. FIG. The figure which shows the specific example of the program operation screen 235. FIG. The figure which shows the specific example of the program auxiliary | assistant setting screen 240. FIG. The flowchart of a sewing process.

  An embodiment of the present invention will be described with reference to the drawings. The configuration of the sewing machine 1 will be described with reference to FIGS. In the following description, the upper side, lower side, right side, left side, front side, and rear side of FIG. 1 are the upper side, lower side, right side, left side, front side, and rear side of the sewing machine 1, respectively. As shown in FIG. 1, the sewing machine 1 includes a bed portion 2, a pedestal column portion 3, and an arm portion 4. The bed part 2 is a base of the sewing machine 1. The bed portion 2 is mounted from above on a recess (not shown) on the upper surface of the table 20. The pedestal 3 extends vertically upward from the right end of the bed 2. The arm portion 4 extends leftward from the upper end of the pedestal column portion 3. The arm part 4 faces the upper surface of the bed part 2.

  The arm portion 4 is provided with a presser foot 17 below the left end portion. The presser foot 17 faces the feed dog 34 (see FIG. 2). The arm portion 4 holds a needle bar 7 therein. The needle bar 7 has a sewing needle 8 attached to the lower end. The needle bar 7 and the sewing needle 8 reciprocate up and down as the main motor 13 is driven. The arm portion 4 includes a balance 9 in front of the left end portion. The balance 9 moves up and down in conjunction with the needle bar 7. The arm unit 4 includes an operation unit 10 at the top. The operation unit 10 includes a liquid crystal panel 11 on the front surface. The liquid crystal panel 11 includes a transparent touch panel 12 on the surface (front surface). The operator presses the touch panel 12 with a finger or a dedicated stylus pen while looking at the liquid crystal panel 11 to input various instructions to the sewing machine 1.

  The sewing machine 1 includes a control device 25 on the lower surface of the table 20. The control device 25 is connected to the stepping pedal 22 via the rod 21. The operator operates the pedal 22 to the toe side or the heel side. The control device 25 controls the operation of the sewing machine 1 according to the operation direction and operation amount of the pedal 22.

  The pedestal 3 has a main motor 13 at the upper right side. The arm portion 4 includes a main shaft 14 inside. The main shaft 14 extends in the left-right direction inside the arm portion 4 in a rotatable state. The right end of the main shaft 14 is connected to the main motor 13. The left end of the main shaft 14 is connected to a needle bar vertical movement mechanism (not shown). The main motor 13 drives the main shaft 14 to move the needle bar 7 and the balance 9 up and down.

  The bed portion 2 includes a needle plate 15 at the upper left end. The needle plate 15 has a needle hole 18 in a substantially central portion (see FIG. 2). The lower end of the sewing needle 8 passes through the needle hole 18 when lowered. The needle plate 15 includes feed dog holes 19 on the left side, the rear side, the right side, and the front side of the needle hole 18 (see FIG. 2). The feed dog hole 19 has a rectangular shape that is long in the front-rear direction. The bed portion 2 includes a hook mechanism (not shown) and a cloth feed mechanism 30 (see FIGS. 2 to 4) below the needle plate 15. The cloth feeding mechanism 30 is a mechanism for feeding a cloth to be sewn.

  The configuration of the cloth feed mechanism 30 will be described with reference to FIG. In the following description, the upper side, the lower side, the right side, the left side, the upper left side, and the lower right side of FIG. 2 are the upper side, the lower side, the front side, the rear side, the right side, and the left side of the sewing machine 1, respectively. As shown in FIG. 2, the cloth feed mechanism 30 includes a feed base 33, a feed dog 34, a cloth feed motor 35, a power transmission mechanism 40, an intermediate working arm 38, a vertical power mechanism 47, and the like.

  The feed base 33 is located below the needle plate 15 and is substantially parallel to the needle plate 15. The feed base 33 supports the four feed dogs 34 substantially horizontally near the center of the upper surface. Each of the feed dogs 34 corresponds to the position of the feed dog hole 19. Each of the feed dogs 34 is long in the front-rear direction. The length of the feed dog 34 in the front-rear direction is smaller than the length of the feed dog hole 19. The feed dog 34 is provided with irregularities for sandwiching the cloth with the presser foot 17 in the upper part. The feed dog 34 moves the cloth in the horizontal direction.

  The cloth feed motor 35 is arranged on the right side of the feed base 33. The cloth feed motor 35 is a stepping motor. The cloth feed motor 35 moves the feed base 33 in the front-rear direction. The cloth feed motor 35 includes a drive shaft 36 extending leftward. The cloth feed motor 35 rotates the drive shaft 36.

  The power transmission mechanism 40 includes a feed arm 41, a feed arm 42, and a connecting portion 65. One end of the feed arm 41 is attached perpendicular to the tip of the drive shaft 36. The other end of the feed arm 41 is rotatably connected to one end of the feed arm 42. A portion where the other end of the feed arm 41 and one end of the feed arm 42 are connected is a connecting portion 65. The other end of the feed arm 42 is rotatably connected to the rear end of the intermediate action arm 38. A portion where the other end of the feed arm 42 and the rear end of the intermediate working arm 38 are connected is a connecting portion 66.

  The front end portion of the intermediate working arm 38 is fixed to the right end side of the horizontal feed shaft 28. The intermediate working arm 38 is orthogonal to the longitudinal direction of the horizontal feed shaft 28 and extends rearward. The horizontal feed shaft 28 is provided on the upper left side of the cloth feed motor 35 and is rotatably supported on the bed portion 2. The horizontal feed shaft 28 extends in the left-right direction. The lower end of the link member 50 is fixed orthogonally to the left end portion of the horizontal feed shaft 28. The upper end of the link member 50 is rotatably connected to the front end portion of the feed base 33.

  As the drive shaft 36 rotates in one direction and the opposite direction within the movable range, the connecting portion 65 reciprocates in the front-rear direction, and the connecting portion 66 reciprocates in the vertical direction. The intermediate working arm 38 rotates around the horizontal feed shaft 28 by the movement of the connecting portion 66. The horizontal feed shaft 28 rotates in conjunction with the rotation of the intermediate working arm 38. As the horizontal feed shaft 28 rotates, the link member 50 moves in the front-rear direction, and the feed base 33 moves in the front-rear direction.

  The vertical power mechanism 47 is provided at the rear end of the feed base 33. The vertical power mechanism 47 includes a vertical feed shaft 27, a pulley 24, an eccentric part 39, and a link member 51. The vertical feed shaft 27 is supported by the bed portion 2 in a rotatable state and extends in the left-right direction. The vertical feed shaft 27 is positioned parallel to the horizontal feed shaft 28. The vertical feed shaft 27 fixes the pulley 24 to the right end. The pulley 24 is connected to the main shaft 14 via a timing belt (not shown). The vertical feed shaft 27 rotates in a state where synchronization with the main shaft 14 is maintained by driving of the main motor 13. The eccentric portion 39 is provided at the left end of the vertical feed shaft 27. The eccentric portion 39 is eccentric with respect to the axis of the vertical feed shaft 27. The link member 51 is rotatably provided at the rear end of the feed base 33. The link member 51 holds the eccentric part 39 rotatably. The eccentric portion 39 rotates together with the vertical feed shaft 27 and moves the feed base 33 up and down via the link member 51.

  The operation mode of the feed base 33 will be described with reference to FIGS. The cloth feed mechanism 30 repeats the following first to third states as the drive shaft 36 rotates in the movable range in one direction and in the opposite direction. As the cloth feed mechanism 30 repeats the first to third states, the feed base 33 moves in the front-rear direction. Each of W <b> 1 to W <b> 3 in FIGS. 2 to 4 indicates the vicinity of the feed base 33.

  In the first state shown in FIG. 2, the feed arm 41 and the feed arm 42 of the power transmission mechanism 40 are positioned on a straight line in the vertical direction. The connecting part 66 is located at the uppermost part of the movable range of the connecting part 66. The connecting part 66 is located above the connecting part 65. The intermediate working arm 38 is substantially horizontal. The feed base 33 is located in the forefront of the movable range of the feed base 33. The feed dog 34 is located in the forefront of the feed dog hole 19. In the present embodiment, the position of the connecting portion 65 when the feed arm 41 and the feed arm 42 are on a straight line in the vertical direction is the intermediate position.

  When the cloth feed motor 35 is driven in the cloth feed mechanism 30 in the first state, the drive shaft 36 rotates clockwise as viewed from the left side. As the drive shaft 36 rotates, the feed arm 41 rotates clockwise. The connecting portion 65 moves from the intermediate position to the front position. The feed arm 41 and the feed arm 42 are bent in an approximately L shape toward the front with the connecting portion 65 as a base point. The feed arm 42 rotates counterclockwise as viewed from the left side about the connecting portion 65. The connecting portion 66 moves downward by the rotation of the feed arm 42. The connecting portion 66 pulls the rear end of the intermediate working arm 38 downward. The intermediate working arm 38 rotates counterclockwise about the horizontal feed shaft 28. The rear end of the intermediate working arm 38 is inclined obliquely downward. In conjunction with the rotation of the intermediate action arm 38, the horizontal feed shaft 28 rotates counterclockwise. The link member 50 rotates counterclockwise in conjunction with the horizontal feed shaft 28. The feed base 33 moves backward. When the drive shaft 36 rotates to one end of the movable range, the feed dog 34 is positioned at the rearmost position of the feed dog hole 19. The cloth feed mechanism 30 is in the second state (see FIG. 3).

  In the second state, the cloth feed motor 35 reverses the rotation direction of the drive shaft 36. The drive shaft 36 rotates counterclockwise as viewed from the left side. As the drive shaft 36 rotates, the feed arm 41 rotates counterclockwise. The connecting portion 65 moves from the front position to the intermediate position. The feed arm 41 and the feed arm 42 are in a straight line in the vertical direction. The intermediate working arm 38 rotates clockwise about the horizontal feed shaft 28. The intermediate working arm 38 returns to substantially horizontal. In conjunction with the rotation of the intermediate working arm 38, the horizontal feed shaft 28 rotates clockwise. The link member 50 rotates clockwise in conjunction with the horizontal feed shaft 28. The feed base 33 moves forward. The feed dog 34 is located in the forefront of the feed dog hole 19. The cloth feed mechanism 30 returns to the first state (see FIG. 2).

  Further, the drive shaft 36 continues to rotate counterclockwise as viewed from the left side. As the drive shaft 36 rotates, the feed arm 41 continues to rotate counterclockwise. As shown in FIG. 4, the connecting portion 65 moves from the intermediate position to the rear position. The feed arm 41 and the feed arm 42 are bent in a substantially L shape toward the rear, which is the opposite side to the second state, with the connecting portion 65 as a base point. The feed arm 42 rotates clockwise around the connecting portion 65. The connecting portion 66 moves downward by the rotation of the feed arm 42. The connecting portion 66 pulls the rear end of the intermediate working arm 38 downward. The intermediate working arm 38 rotates counterclockwise about the horizontal feed shaft 28. The rear end of the intermediate working arm 38 is inclined obliquely downward. In conjunction with the rotation of the intermediate action arm 38, the horizontal feed shaft 28 rotates counterclockwise. The link member 50 rotates counterclockwise in conjunction with the horizontal feed shaft 28. The feed base 33 moves backward. When the drive shaft 36 rotates to the other end of the movable range, the feed dog 34 is positioned at the rearmost position of the feed dog hole 19. The cloth feed mechanism 30 is in the third state (see FIG. 4).

  The cloth feed motor 35 reverses the rotation direction of the drive shaft 36. The drive shaft 36 rotates clockwise. As the drive shaft 36 rotates, the feed arm 41 rotates clockwise. The connecting portion 65 moves from the rear position to the intermediate position. The feed arm 41 and the feed arm 42 are on a straight line in the vertical direction. The intermediate working arm 38 rotates clockwise about the horizontal feed shaft 28. The intermediate working arm 38 returns to substantially horizontal. In conjunction with the rotation of the intermediate working arm 38, the horizontal feed shaft 28 rotates clockwise. The link member 50 rotates clockwise in conjunction with the horizontal feed shaft 28. The feed base 33 moves to the forefront. The feed dog 34 is located in the forefront of the feed dog hole 19. The cloth feed mechanism 30 returns to the first state (see FIG. 2). The cloth feed mechanism 30 repeats the first to third states and moves the feed base 33 in the front-rear direction.

  An operation in which the cloth feeding mechanism 30 feeds the cloth backward will be described. The cloth feeding mechanism 30 feeds the cloth by the repetition of the first to third states by the driving of the cloth feeding motor 35 and the vertical movement of the feeding base 33 by the driving of the main motor 13 described above. When the cloth feed mechanism 30 is in the first state (see FIG. 2), the feed base 33 is in a position where the feed dog 34 substantially coincides with the upper surface of the needle plate 15.

  When the main motor 13 is driven, the eccentric portion 39 and the link member 51 move the feed base 33 upward. The feed dog 34 protrudes upward from the upper surface of the needle plate 15. The cloth feed motor 35 rotates the drive shaft 36 clockwise in a left side view. The power transmission mechanism 40 moves the feed base 33 backward. Therefore, the cloth feed mechanism 30 feeds the cloth backward. When the main motor 13 continues to drive, the eccentric part 39 and the link member 51 move the feed base 33 downward. The feed dog 34 returns to a position substantially coincident with the upper surface of the needle plate 15. The cloth feed motor 35 rotates the drive shaft 36 clockwise to one end of the movable range. The cloth feed mechanism 30 is in the second state (see FIG. 3). The cloth feed mechanism 30 stops the cloth feed.

  Next, the eccentric portion 39 and the link member 51 move the feed base 33 downward. The feed dog 34 is lowered downward from the upper surface of the needle plate 15. The cloth feed motor 35 reverses the rotation direction of the drive shaft 36. The drive shaft 36 rotates counterclockwise as viewed from the left side. The power transmission mechanism 40 moves the feed base 33 forward. Since the feed dog 34 is positioned below the upper surface of the needle plate 15, the cloth feed mechanism 30 does not feed the cloth. When the main motor 13 continues to be driven, the feed dog 34 returns to a position substantially coincident with the upper surface of the needle plate 15. Since the cloth feed motor 35 rotates the drive shaft 36 counterclockwise as viewed from the left side, the cloth feed mechanism 30 returns to the first state (see FIG. 2).

  Next, the eccentric part 39 and the link member 51 move the feed base 33 upward again. The feed dog 34 protrudes upward from the upper surface of the needle plate 15. The cloth feed motor 35 continues to rotate the drive shaft 36 counterclockwise. The power transmission mechanism 40 switches the moving direction of the feed base 33 from the front to the rear. The cloth feed mechanism 30 feeds the cloth backward again. When the main motor 13 continues to be driven, the feed dog 34 returns to a position substantially coincident with the upper surface of the needle plate 15. The cloth feed motor 35 rotates the drive shaft 36 counterclockwise to the other end of the movable range. The cloth feed mechanism 30 is in the third state (see FIG. 4). The cloth feed mechanism 30 stops the cloth feed.

  Next, the eccentric portion 39 and the link member 51 move the feed base 33 further downward. The feed dog 34 is lowered downward from the upper surface of the needle plate 15. The cloth feed motor 35 reverses the rotation direction of the drive shaft 36. The drive shaft 36 rotates clockwise. The power transmission mechanism 40 moves the feed base 33 forward. Since the feed dog 34 is positioned below the upper surface of the needle plate 15, the cloth feed mechanism 30 does not feed the cloth. When the main motor 13 continues to drive, the feed dog 34 returns to a position that substantially coincides with the upper surface of the needle plate 15. Since the cloth feed motor 35 rotates the drive shaft 36 clockwise, the cloth feed mechanism 30 returns to the first state.

  The cloth feeding mechanism 30 repeats the above-described operation and feeds the cloth backward. When the rotation amount of the drive shaft 36 of the cloth feed motor 35 is reduced, the amount of cloth transfer (hereinafter referred to as the cloth feed amount) is reduced. When the rotation amount of the drive shaft 36 is increased, the cloth feed amount is increased. Therefore, the CPU 44 (see FIG. 5) can adjust the cloth feed amount only by changing the rotation amount of the drive shaft 36.

  The electrical configuration of the sewing machine 1 will be described with reference to FIG. The control device 25 of the sewing machine 1 includes a CPU 44. The CPU 44 controls the sewing machine 1. The CPU 44 is connected to a ROM 45, a RAM 46, an EEPROM (registered trademark) 49, and an I / O interface (hereinafter referred to as I / O) 48 via a bus. The ROM 45 stores a control program and the like for controlling the operation of the sewing machine 1. The RAM 46 temporarily stores various values necessary for executing the program. The EEPROM 49 is a non-volatile storage device that stores various values. The EEPROM 49 stores a later-described auxiliary function table 60 (see FIG. 6), a common auxiliary table 70 (see FIG. 7), a sewing program 80 (see FIG. 8), and a program auxiliary table 90 (see FIG. 9).

  The I / O 48 is connected to the pedal 22 and the touch panel 12. The CPU 44 acquires the operation direction and the operation amount of the pedal 22. The CPU 44 acquires an operation instruction from the operator from the touch panel 12. The I / O 48 is connected to the drive circuits 52-54. The drive circuit 52 drives the liquid crystal panel 11. The drive circuit 53 drives the main motor 13 in accordance with a torque command signal input from the CPU 44. The sewing machine 1 includes a main encoder 57 for detecting a rotation angle phase and a rotation speed of the main motor 13. The main encoder 57 outputs the detection result of the rotation angle phase and rotation speed of the main motor 13 to the I / O 48. The drive circuit 54 drives the cloth feed motor 35 in accordance with the cloth feed drive signal input from the CPU 44.

  The CPU 44 controls the rotation of the drive shaft 36 of the cloth feed motor 35 and adjusts the cloth feed amount. The cloth feed motor 35 is a pulse motor. The cloth feed driving signal of the cloth feed motor 35 is a pulse signal. The sewing machine 1 includes a cloth feed encoder 58 for detecting a rotation angle phase and a rotation speed of the drive shaft 36 of the cloth feed motor 35. The cloth feed encoder 58 outputs the detection result of the rotation angle phase and the rotation speed of the cloth feed motor 35 to the I / O 48.

  The sewing program 80 will be described with reference to FIG. The sewing program 80 defines the content and procedure of an operation (hereinafter referred to as a sewing operation) in which the sewing machine 1 performs sewing on the cloth. The sewing operation based on the sewing program 80 includes a multi-step sewing operation. The sewing operations of a plurality of steps are respectively determined as sewing data. The sewing program 80 includes a plurality of sewing data. Each sewing data includes a step number, the number of stitches, the number of rotations, a pitch, and the like. The EEPROM 49 stores a plurality of sewing programs 80.

  The step number defines the execution order of the sewing operation for each step. The number of needles determines the number of reciprocating movements of the needle bar 7 in the sewing operation of each step. The number of stitches indicates the number of needle drops in the sewing operation at each step. One unit of the number of needles is one reciprocal movement of the needle bar 7. The number of rotations determines the number of rotations per unit time (for example, 1 minute) of the drive shaft of the main motor 13. The number of rotations indicates a sewing speed in the sewing operation of each step. The pitch determines the target value of the cloth feed amount in the sewing operation of each step in one reciprocating unit of the reciprocating movement of the needle bar 7. The pitch indicates a target value of the length of the seam formed by one reciprocal movement of the needle bar 7. The stitch length corresponds to the movement distance of the feed dog 34 in the front-rear direction.

  The CPU 44 can execute the sewing operation by controlling the needle bar 7 and the cloth feed mechanism 30 based on the sewing program 80. At this time, the CPU 44 executes a plurality of sewing data included in the sewing program 80 in the order of the step numbers, and sequentially executes a sewing operation based on each sewing data. In the sewing operation at each step, the sewing operation is executed based on sewing data such as the number of stitches, the number of rotations, and the pitch. In the present embodiment, the EEPROM 49 stores a plurality of sewing programs 80. The CPU 44 can execute sewing operations of different patterns according to the sewing program 80 to be executed.

  The auxiliary function table 60 will be described with reference to FIG. The auxiliary function table 60 defines settable items and function classifications of each auxiliary function for a plurality of auxiliary functions related to the sewing operation. In addition to the main sewing operations based on the sewing program 80, the sewing machine 1 can execute an accompanying sewing operation determined by the auxiliary function. The settable item indicates specific execution contents that can be set for the corresponding auxiliary function. The plurality of auxiliary functions include, for example, slow start, thread wiper, automatic thread trimming, AUTO, needle stop position, thread trimming prohibition, correction sewing, and the like.

  The slow start is an auxiliary function that makes the cloth feed speed for several stitches slower than usual from the start of the sewing operation based on the sewing program 80. The settable items for the slow start are “OFF” and “ON”. “ON” indicates that the corresponding auxiliary function is executed. “OFF” indicates that the corresponding auxiliary function is not executed. The thread wiper is an auxiliary function for pulling the upper thread from the cloth by paying the upper thread upward by a thread wiper member (not shown) when thread trimming is performed during a sewing operation based on the sewing program 80. The settable item for thread wipe is “OFF” or “ON”. “ON” indicates that the corresponding auxiliary function is executed.

  Automatic thread trimming is an auxiliary function for executing thread trimming at the end of the sewing operation based on the sewing program 80. The settable item for automatic thread trimming is “OFF” or “ON”. AUTO is an auxiliary function for executing program sewing based on the sewing program 80. Program sewing is a sewing mode in which when the operator operates the pedal 22 once, the sewing machine 1 starts the sewing operation based on the sewing program 80 and automatically ends the sewing operation when the sewing operation is completed. The AUTO setting item is “OFF” or “ON”.

  The needle stop position is an auxiliary function that determines the position at which the sewing needle 8 is stopped when the sewing operation based on the sewing program 80 ends. The settable item of the needle stop position is “needle up” or “needle down”. “Needle up” indicates that the sewing needle 8 moves above the cloth and stops at the end of the sewing operation. The setting item “needle down” indicates that the sewing needle 8 stops in a state where it is stuck in the cloth at the end of the sewing operation. The thread trimming prohibition is an auxiliary function that prohibits thread trimming during a sewing operation based on the sewing program 80. The settable item for prohibiting thread trimming is “OFF” or “ON”. The correction sewing is an auxiliary function that executes a sewing operation based on the sewing program 80 one stitch at a time in accordance with an operation of a correction sewing switch (not shown) by an operator. The settable items for correction sewing are “OFF” or “ON”.

  The function classification indicates whether the corresponding auxiliary function is a common auxiliary function or a program auxiliary function. The common auxiliary function is an auxiliary function applied to all of the plurality of sewing programs 80 stored in the EEPROM 49. The program auxiliary function is an auxiliary function that is individually applied to a plurality of sewing programs 80 stored in the EEPROM 49. In the example shown in FIG. 7, slow start, thread wiper, needle stop position, thread trimming prohibition, and correction sewing are common auxiliary functions. Automatic thread trimming and AUTO are program auxiliary functions.

  The common auxiliary table 70 will be described with reference to FIG. The common auxiliary table 70 defines setting items for common auxiliary functions defined by the auxiliary function table 60. The setting item defines the execution contents of the auxiliary function executed during the sewing operation of the sewing machine 1 among the settable items determined by the auxiliary function table 60. The common auxiliary table 70 illustrated in FIG. 8 defines setting items for slow start, thread wiper, needle stop position, thread trimming prohibition, and correction sewing, which are common auxiliary functions defined by the auxiliary function table 60 illustrated in FIG.

  The program auxiliary table 90 will be described with reference to FIG. The EEPROM 49 stores a plurality of program auxiliary tables 90 respectively corresponding to the plurality of sewing programs 80. Each program auxiliary table 90 defines setting items of program auxiliary functions determined by the auxiliary function table 60 for each corresponding sewing program 80. The program auxiliary table 90 illustrated in FIG. 9 defines the setting items of automatic thread trimming and AUTO, which are program auxiliary functions defined by the auxiliary function table 60 illustrated in FIG. 7, for the sewing program 80 “P1” illustrated in FIG. .

  In the present embodiment, the case where the sewing program 80 and the program auxiliary table 90 are independent data is illustrated. Instead of this, the sewing program 80 and the program auxiliary table 90 may be integrated data. For example, the sewing program 80 may include setting items for program auxiliary functions defined by the corresponding program auxiliary table 90.

  The main process of the sewing machine 1 will be described with reference to FIG. When the power of the sewing machine 1 is turned on, the CPU 44 starts the main process by executing the control program stored in the ROM 45. As shown in FIG. 10, the CPU 44 displays the home screen 200 (see FIG. 11) on the liquid crystal panel 11 (S1). The home screen 200 is a screen on which an operator can input various settings and instructions regarding the sewing machine 1 and the sewing operation via the touch panel 12. The home screen 200 is a screen on which an instruction for sewing processing can be given as will be described later. In FIG. 10, the sewing program 80 “P1” can be sewn. The CPU 44 determines whether or not there is a classification setting instruction on the home screen 200 (S3). When there is a classification setting instruction (S3: YES), the CPU 44 executes a classification setting process described later (S5).

  When there is no classification setting instruction (S3: NO) or after execution of S5, the CPU 44 determines whether there is a common auxiliary setting instruction on the home screen 200 (S7). When there is an instruction for common auxiliary setting (S7: YES), the CPU 44 executes a common auxiliary setting process described later (S9). When there is no common auxiliary setting instruction (S7: NO) or after execution of S9, the CPU 44 determines whether or not there is a program operation instruction on the home screen 200 (S11). When there is a program operation instruction (S11: YES), the CPU 44 executes a program operation process described later (S13).

  When there is no program operation instruction (S11: NO) or after execution of S13, the CPU 44 determines whether or not there is a program change instruction on the home screen 200 (S15). When there is an instruction to change the program (S15: YES), the CPU 44 changes the program (S17). The program change is a process in which the operator changes the sewing program 80 displayed on the home screen 200. Specifically, the operator operates triangular arrow buttons 201 and 202 displayed on the home screen 200 via the touch panel 12. In the example of FIG. 11, when the operator operates the right arrow button 202, the sewing program 80 displayed on the home screen 200 is “P2”.

  When there is no instruction to change the program (S15: NO) or after execution of S17, the CPU 44 determines whether there is an instruction to execute sewing on the home screen 200 (S19). When there is an instruction to execute sewing (S19: YES), the CPU 44 executes a sewing process described later (S21). When there is no instruction to execute sewing (S19: NO) or after execution of S21, the CPU 44 returns the process to S1. The main process ends when the power of the sewing machine 1 is turned off.

  The classification setting process will be described with reference to FIG. The classification setting process is executed when there is a classification setting instruction in S3 of FIG. As shown in FIG. 12, the CPU 44 displays the classification setting screen 210 (see FIG. 13) on the liquid crystal panel 11 (S31). The classification setting screen 210 is a screen that displays a list of auxiliary functions defined by the auxiliary function table 60 and allows the operator to freely change the function classification of the auxiliary functions by operating the touch panel 12. As shown in FIG. 13, the classification setting screen 210 includes an auxiliary function display field 211, a classification selection button 212, and an end button 213. The auxiliary function display field 211 is an area for displaying auxiliary functions whose function classification can be changed. The classification selection button 212 is a button for the operator to change the function classification via the touch panel 12 for each of the auxiliary functions displayed in the auxiliary function display field 211. The end button 213 is a button operated when the operator instructs the end of setting through the touch panel 12.

  The CPU 44 determines whether or not there is an operator's operation for changing the function classification of the auxiliary function on the classification setting screen 210 (S33). When there is a change in the function classification (S33: YES), the CPU 44 updates the auxiliary function table 60 based on the operator's operation received on the classification setting screen 210 (S35). The CPU 44 determines whether or not the function classification change determined in S33 is a change from the program auxiliary function to the common auxiliary function (S37). When the program auxiliary function is changed to the common auxiliary function (S37: YES), the CPU 44 adds the auxiliary function whose function classification is changed to the common auxiliary table 70 (S39). The CPU 44 sets initial items as setting items for auxiliary functions added to the common auxiliary table 70 (S41). The initial items are default settable items determined in advance for each auxiliary function among the settable items determined by the auxiliary function table 60, and are stored in the EEPROM 49. The CPU 44 deletes the auxiliary function whose function classification has been changed from all the program auxiliary tables 90 stored in the EEPROM 49 (S43).

  When the change in the function classification determined in S33 is a change from the common auxiliary function to the program auxiliary function (S37: NO), the CPU 44 adds the auxiliary function whose function classification has been changed to the program auxiliary table 90 (S45). The CPU 44 sets an existing item as a setting item for the auxiliary function added to the program auxiliary table 90 (S47). The existing item is a setting item defined by the common auxiliary table 70 for the auxiliary function whose function classification is changed. The CPU 44 executes the processes of S45 and S47 on all the program auxiliary tables 90 stored in the EEPROM 49. The CPU 44 deletes the auxiliary function whose function classification has been changed from the common auxiliary table 70 (S49).

  After execution of S43 or S49, the CPU 44 determines whether or not there is a setting end instruction on the classification setting screen 210 (S51). An instruction to end the setting can be given by the operator operating the end button 213. When there is no instruction to end the setting (S51: NO), the CPU 44 determines whether or not the home key 150 (see FIG. 14) is pressed (S53). As shown in FIG. 14, the home key 150 is one of the buttons that the operation unit 10 has, and is a button for the operator to instruct a return to the home screen 200. If the home key 150 is not pressed (S53: NO), the CPU 44 returns the process to S31. When there is an instruction to end the setting (S51: YES), or when the home key 150 is pressed (S53: YES), the CPU 44 returns the process to S1.

  For example, the operator selects automatic thread trimming on the classification setting screen 210, and operates the classification selection button 212 to change the selected automatic thread trimming from the program auxiliary function to the common auxiliary function (S31, S33: YES). In this case, the CPU 44 updates the automatic thread trimming function classification from the program auxiliary function to the common auxiliary function in the auxiliary function table 60 shown in FIG. 7 (S35). The CPU 44 adds automatic thread trimming to the common auxiliary table 70 shown in FIG. 8 (S37: YES, S39). The CPU 44 sets “OFF”, which is an initial item for automatic thread trimming, as a setting item for automatic thread trimming in the common auxiliary table 70 (S41). The CPU 44 deletes the automatic thread trimming from all the program auxiliary tables 90 including the program auxiliary table 90 shown in FIG. 9 (S43).

  For example, the operator selects the slow start on the classification setting screen 210 and operates the classification selection button 212 to change the selected slow start from the common auxiliary function to the program auxiliary function (S31, S33: YES). In this case, the CPU 44 updates the slow start function classification from the common auxiliary function to the program auxiliary function in the auxiliary function table 60 shown in FIG. 7 (S35). The CPU 44 adds a slow start to all the program auxiliary tables 90 including the program auxiliary table 90 shown in FIG. 9 (S37: NO, S45). The CPU 44 sets “OFF”, which is an existing item defined by the common auxiliary table 70 shown in FIG. 8, as a setting item for slow start in all the program auxiliary tables 90 (S47). The CPU 44 deletes the slow start from the common auxiliary table 70 (S49).

  The common auxiliary setting process will be described with reference to FIG. The common auxiliary setting process is executed when a common auxiliary setting instruction is issued in S7 of FIG. As shown in FIG. 15, the CPU 44 displays a common auxiliary setting screen 220 (see FIG. 16) on the liquid crystal panel 11 (S61). The common auxiliary setting screen 220 is a screen that displays a list of common auxiliary functions determined by the common auxiliary table 70 and allows the operator to freely set the setting items of the common auxiliary functions by operating through the touch panel 12. As shown in FIG. 16, the common auxiliary setting screen 220 includes a common auxiliary display field 221, a setting selection button 222, and an end button 223. The common auxiliary display column 221 is an area for displaying a common auxiliary function. The setting selection button 222 is a button for the operator to select a setting item via the touch panel 12 for each common auxiliary function displayed in the common auxiliary display field 221. In FIG. 16, the common auxiliary setting screen 220 displays the items set by the setting selection button 222 in white. The end button 223 is a button operated when the operator instructs the end of setting via the touch panel 12.

  The CPU 44 determines whether or not there is an operation of an operator who changes the setting item of the common auxiliary function on the common auxiliary setting screen 220 (S63). When the setting item is changed (S63: YES), the CPU 44 updates the common auxiliary table 70 based on the operator's operation received on the common auxiliary setting screen 220 (S65). The CPU 44 determines whether or not there is a setting end instruction on the common auxiliary setting screen 220 (S67). An instruction to end the setting can be given by the operator operating the end button 223. If there is no setting end instruction (S67: NO), the CPU 44 determines whether or not the home key 150 (see FIG. 14) has been pressed (S69). If the home key 150 has not been pressed (S69: NO), the CPU 44 returns the process to S61. When there is an instruction to end the setting (S67: YES), or when the home key 150 is pressed (S69: YES), the CPU 44 returns the process to S1.

  For example, the operator selects the slow start on the common auxiliary setting screen 220 and operates the setting selection button 222 to change the setting item from “OFF” to “ON” (S61, S63: YES). In this case, the CPU 44 updates the slow start setting item to “ON” in the common auxiliary table 70 shown in FIG. 8 (S65). Therefore, the operator can change the setting items of the common auxiliary function without changing each sewing program 80.

  The program operation process will be described with reference to FIG. The program operation process is executed when a program operation instruction is issued in S11 of FIG. As shown in FIG. 17, the CPU 44 displays a program list screen 230 (see FIG. 18) on the liquid crystal panel 11 (S71). The program list screen 230 is a screen for displaying a list of sewing programs 80 stored in the EEPROM 49 and allowing the operator to freely select the sewing program 80 by operating the touch panel 12. As shown in FIG. 18, the program list screen 230 includes a program selection button 231. The program selection button 231 is a button for the operator to select the sewing programs 80 “P1” to “P5” via the touch panel 12.

  The CPU 44 determines whether or not the sewing program 80 is selected on the program list screen 230 (S73). When the sewing program 80 is selected (S73: YES), the CPU 44 displays a program operation screen 235 (see FIG. 19) on the liquid crystal panel 11 (S75). The program operation screen 235 is a screen for the operator to perform various operations by operating the sewing program 80 selected on the program list screen 230 via the touch panel 12.

  As shown in FIG. 19, the program operation screen 235 includes a program edit button 2351, a program auxiliary setting button 2352, and an end button 2355. The program edit button 2351 is a button that is selected when an operator edits the sewing program 80 via the touch panel 12. The program auxiliary setting button 2352 is a button that is selected when the operator sets the program auxiliary function corresponding to the sewing program 80 via the touch panel 12. The end button 2355 is a button that is selected when the operator ends various operations of the sewing program 80 via the touch panel 12.

  The CPU 44 determines whether or not there is a program editing instruction on the program operation screen 235 (S77). The operator operates the program editing button 2351 when instructing program editing. When there is an instruction to edit the program (S77: YES), the CPU 44 accepts the operation of the operator who edits the sewing program 80 on the program operation screen 235 (S79). For example, the operator freely edits the quantity of sewing data, the step number, the number of stitches, the number of rotations, the pitch, and the like for the sewing program 80 selected on the program list screen 230. The CPU 44 updates the sewing program 80 stored in the EEPROM 49 based on the editing operation received in S79. Thereafter, the CPU 44 returns the process to S75.

  When there is no program editing instruction (S77: NO), the CPU 44 determines whether or not there is a program auxiliary setting instruction on the program operation screen 235 (S81). The operator operates the program auxiliary setting button 2352 when instructing the program auxiliary setting. When there is an instruction for program auxiliary setting (S81: YES), the CPU 44 displays a program auxiliary setting screen 240 (see FIG. 20) on the liquid crystal panel 11 (S83). The program auxiliary setting screen 240 is a screen that displays a list of program auxiliary functions defined by the program auxiliary table 90 and allows the operator to freely set setting items of the program auxiliary functions by operating the touch panel 12. Specifically, the CPU 44 reads from the EEPROM 49 a program auxiliary table 90 corresponding to the sewing program 80 selected on the program list screen 230. The CPU 44 displays a program assistance setting screen 240 based on the read program assistance table 90.

  As shown in FIG. 20, the program auxiliary setting screen 240 includes a program auxiliary display field 241, a setting selection button 242, and an end button 243. The program auxiliary display column 241 is an area for displaying a program auxiliary function. The setting selection button 242 is a button for the operator to select a setting item via the touch panel 12 for each of the program auxiliary functions displayed in the program auxiliary display column 241. In FIG. 20, the program auxiliary setting screen 240 displays the items set by the setting selection button 242 in white. The end button 243 is a button operated when the operator instructs the end of setting via the touch panel 12.

  The CPU 44 determines whether or not there is an operator's operation for changing the setting item of the program auxiliary function on the program auxiliary setting screen 240 (S85). When the setting item is changed (S85: YES), the CPU 44 updates the program auxiliary table 90 based on the operator's operation received on the program auxiliary setting screen 240 (S87). When the setting item has not been changed (S85: NO) or after execution of S87, the CPU 44 determines whether or not there is an instruction to end the setting on the program auxiliary setting screen 240 (S89). An instruction to end the setting can be given by the operator operating the end button 243. When there is no setting end instruction (S89: NO), the CPU 44 returns the process to S83. When there is an instruction to end the setting (S89: YES), the CPU 44 returns the process to S75.

  When there is no program auxiliary setting instruction (S81: NO), the CPU 44 determines whether or not there is an operation end instruction on the program operation screen 235 (S91). The operation end instruction can be given by the operator operating the end button 2355. If there is no instruction to end the operation (S91: NO), the CPU 44 returns the process to S75. When there is an instruction to end the operation (S91: YES), the CPU 44 returns the process to S71. When the sewing program 80 is not selected (S73: NO), the CPU 44 determines whether or not the home key 150 (see FIG. 14) is pressed (S93). When the home key 150 is not pressed (S93: NO), the CPU 44 returns the process to S71. When the home key 150 is pressed (S93: YES), the CPU 44 returns the process to S1.

  For example, the operator selects the sewing program 80 “P1” on the program list screen 230, operates the program auxiliary setting button 2352 on the program operation screen 235, and instructs the program auxiliary setting (S71, S73: YES, S75, S77). : NO, S81: YES). The operator selects automatic thread trimming on the program auxiliary setting screen 240 and operates the setting selection button 242 to change the setting item from “OFF” to “ON” (S83, S85: YES). In this case, the CPU 44 updates the automatic thread trimming setting item to “ON” in the program auxiliary table 90 shown in FIG. 9 (S87). Therefore, the operator can change only the desired sewing program 80 as the setting item of the program auxiliary function.

  The sewing process will be described with reference to FIG. The sewing process is executed based on a sewing program 80 displayed on the home screen 200 (hereinafter referred to as an execution target sewing program 80) when an instruction to execute sewing is given in S19 of FIG. As an example, in the sewing process of the present embodiment, a case where the sewing machine 1 executes program sewing will be described. The sewing execution instruction is given by the operator operating the pedal 22. The sewing process starts when the CPU 44 determines that the pedal 22 is ON.

  As shown in FIG. 21, the CPU 44 reads setting items for all common auxiliary functions defined by the common auxiliary table 70 (S105). The CPU 44 reads out the setting items of the program auxiliary function defined by the program auxiliary table 90 corresponding to the sewing program 80 to be executed among the plurality of program auxiliary tables 90 stored in the EEPROM 49 (S107). In the present embodiment, among the auxiliary functions read in S105 or S107, the AUTO setting item is “ON”, and therefore the program sewing is executed by the following processing.

  The CPU 44 reads the execution target sewing data for one step from the execution target sewing program 80 (S111). The CPU 44 executes sewing for one stitch according to the read sewing data (S113). Specifically, the CPU 44 rotates the drive shaft of the main motor 13 according to the number of rotations determined by the sewing data. The CPU 44 drives the cloth feed motor 35 in accordance with the pitch determined by the sewing data.

  After execution of S113, the CPU 44 determines whether or not the sewing operation for one step has been completed (S115). Specifically, when the CPU 44 executes S113 as many times as the number of stitches in the read sewing data, the CPU 44 determines that the sewing operation for one step has been completed (S115: YES). On the other hand, if the sewing operation for one step has not been completed (S115: NO), the CPU 44 returns the process to S113 and continues to execute the sewing for one stitch.

  When the sewing operation for one step is completed (S115: YES), the CPU 44 determines whether or not there is a next step (S117). Specifically, the CPU 44 determines that there is no next step when all the sewing data included in the sewing program 80 to be executed is read in S111 (S117: NO). In this case, since the sewing operation based on the sewing program 80 to be executed has been completed, the CPU 44 returns the processing to the main processing (see FIG. 10). When there is a next step (S117: YES), the CPU 44 returns the process to S111. The CPU 44 reads the sewing data of the next step and continues the sewing operation in the same manner as described above (S111 to S115).

  In the present embodiment, when executing S113, the CPU 44 executes the common auxiliary function setting items read in S105 and the program auxiliary function setting items read in S107. For example, the CPU 44 executes the following auxiliary sewing operation based on the common auxiliary table 70 shown in FIG. 8 and the program auxiliary table 90 shown in FIG. The CPU 44 executes the above-described program sewing in accordance with AUTO “ON”. In accordance with automatic thread trimming “ON”, thread wiper “ON”, and needle stop position “needle up”, the CPU 44 stops the sewing needle 8 above the cloth at the end of the sewing operation and executes thread trimming and thread wiper. When the operator operates the correction sewing switch, the CPU 44 executes the correction sewing in accordance with the correction sewing “ON”. The CPU 44 follows the slow start “OFF” and does not execute the slow start. The CPU 44 permits thread trimming in accordance with thread trimming prohibition “OFF”.

  If the operator sets the auxiliary function setting item by mistake, the common auxiliary function setting item determined by the common auxiliary table 70 and the program auxiliary function setting item determined by the program auxiliary table 90 are difficult to achieve at the time of sewing operation. There is a risk. For example, if the setting item for prohibiting thread trimming in the common auxiliary table 70 shown in FIG. 8 is “ON”, and the setting item for automatic thread trimming in the program auxiliary table 90 shown in FIG. Only one of them can be executed during operation. In the present embodiment, when executing only one of the setting items for the common auxiliary function defined by the common auxiliary table 70 and the setting item for the program auxiliary function defined by the program auxiliary table 90, the CPU 44 executes the program auxiliary function. Prioritize the setting items. Therefore, even when the operator sets the auxiliary function setting item by mistake, the sewing machine 1 can appropriately execute the sewing operation.

  As described above, according to the present embodiment, the auxiliary function table 60 determines which of the plurality of auxiliary functions is the common auxiliary function or the program auxiliary function. The common auxiliary table 70 defines setting items for common auxiliary functions defined by the auxiliary function table 60. The program auxiliary table 90 defines setting items for program auxiliary functions defined by the auxiliary function table 60 for each of the plurality of sewing programs 80. When executing the sewing operation based on the sewing program 80 to be executed, the CPU 44 executes the setting contents of the common auxiliary function and the program auxiliary function (S113). Thus, the sewing machine 1 can set the execution contents of the auxiliary functions applied to all the sewing programs 80 and the execution contents of the auxiliary functions applied to the individual sewing programs 80 separately. Therefore, the operator can accurately and easily set necessary functions for a plurality of sewing programs 80 that define the contents and procedures of the sewing operation.

  The CPU 44 can change the setting items of the common auxiliary function defined by the common auxiliary table 70 (S61 to S65). The CPU 44 can change the setting items of the program auxiliary function defined by the program auxiliary table 90 for each of the plurality of sewing programs 80 stored in the EEPROM 49 (S83 to S87). Therefore, the sewing machine 1 can easily and accurately change the execution contents of the auxiliary functions applied to all the sewing programs 80 and the execution contents of the auxiliary functions applied to the individual sewing programs 80.

  In the auxiliary function table 60, the CPU 44 can change whether each of the plurality of auxiliary functions is a common auxiliary function or a program auxiliary function (S31 to S35). Therefore, the sewing machine 1 can easily and accurately classify whether each auxiliary function is applied to all sewing programs 80 or individual sewing programs 80.

  When the auxiliary function is changed from the common auxiliary function to the program auxiliary function, the CPU 44 applies the changed setting item (existing item) of the auxiliary function to the individual sewing program 80 as it is (S45 to S49). Therefore, when the operator changes the auxiliary function from the common auxiliary function to the program auxiliary function, it is not necessary to reset the execution content of the changed auxiliary function for each sewing program 80.

  When the auxiliary function is changed from the program auxiliary function to the common auxiliary function, the CPU 44 applies the setting items (initial items) predetermined for the changed auxiliary function to all the sewing programs 80 (S39 to S43). Therefore, when the worker changes the auxiliary function from the program auxiliary function to the common auxiliary function, it is not necessary to reset the execution contents of the changed auxiliary function.

  When only one of the common auxiliary function setting item and the program auxiliary function setting item can be executed, the CPU 44 preferentially applies the setting item of the program auxiliary function to the sewing operation (S113). Therefore, when it is difficult to achieve both the execution contents of the common auxiliary function and the execution contents of the program auxiliary function, the sewing machine 1 performs sewing by executing the execution contents of the program auxiliary function with priority over the execution contents of the common auxiliary function. The malfunction of operation can be suppressed.

  In the above embodiment, the sewing program 80 corresponds to the “program” of the present invention. The EEPROM 49 for storing the sewing program 80 corresponds to the “program storage means” of the present invention. The common auxiliary function corresponds to the “first function” of the present invention. The program auxiliary function corresponds to the “second function” of the present invention. The auxiliary function table 60 corresponds to the “function table” of the present invention. The EEPROM 49 for storing the auxiliary function table 60 corresponds to the “table storage means” of the present invention. The EEPROM 49 that stores the common auxiliary table 70 corresponds to the “first function storage unit” of the present invention. The EEPROM 49 that stores the program auxiliary table 90 corresponds to the “second function storage unit” of the present invention. The CPU 44 that executes S113 corresponds to the “sewing control means” of the present invention. The CPU 44 that executes S61 to S65 corresponds to the “first function changing unit” of the present invention. The CPU 44 that executes S83 to S87 corresponds to the “second function changing unit” of the present invention. CPU44 which performs S31-S35 corresponds to the "classification change means" of this invention. The CPU 44 that executes S45 to S49 corresponds to the “first setting changing means” of the present invention. The CPU 44 that executes S39 to S43 corresponds to the “second setting changing means” of the present invention. The process of S113 corresponds to the “step of executing a sewing operation” of the present invention.

  In addition, this invention is not limited to said embodiment, A various change is possible. Part or all of the main processing (see FIG. 10) may be executed by an apparatus other than the sewing machine 1. For example, a CPU of a personal computer (hereinafter referred to as a PC) that can be connected to the sewing machine 1 may execute part or all of the main processing (see FIG. 10). In this case, at least one of the auxiliary function table 60, the common auxiliary table 70, the sewing program 80, and the program auxiliary table 90 may be stored in the storage device of the PC.

  The operation unit 10 includes a liquid crystal panel 11 on the front surface, and the liquid crystal panel 11 includes a transparent touch panel 12 on the front surface (front surface), but the touch panel 12 may not be provided. In this case, various buttons included in the home screen 200, the classification setting screen 210, the common auxiliary setting screen 220, the program list screen 230, the program operation screen 235, and the program auxiliary setting screen 240 may be provided in the operation unit 10.

1 sewing machine 7 needle bar 8 sewing needle 30 cloth feed mechanism 44 CPU
49 EEPROM
70 Common auxiliary table 80 Sewing program 90 Program auxiliary table

Claims (7)

A cloth feed mechanism capable of transferring cloth;
It is equipped with a needle bar that is equipped with a sewing needle and can reciprocate with respect to the cloth.
In a sewing machine that can automatically control the sewing operation based on a program that defines the contents and procedure of the sewing operation in which the cloth is transferred by the cloth feed mechanism and the needle bar is reciprocated to perform sewing on the cloth. ,
Program storage means for storing a plurality of the programs;
Each of the plurality of auxiliary functions related to the sewing operation is individually applied to the first function applied to all of the plurality of programs stored in the program storage unit and the plurality of programs stored in the program storage unit. A table storage means for storing a function table that defines which of the second functions is applied to
First function storage means for storing the execution contents of the first function defined by the function table;
Second function storage means for storing execution contents of the second function defined by the function table for each of the plurality of programs stored by the program storage means;
Based on the program to be executed among the plurality of programs stored in the program storage means, the needle bar and the cloth feed mechanism are controlled to execute the sewing operation. In the sewing operation, The execution contents of the first function stored in the function storage means and the execution contents of the second function corresponding to the execution target program among the execution contents of the second function stored in the second function storage means. Sewing control means for executing the sewing machine. First function changing means capable of changing the execution contents of the first function stored in the first function storing means;
The second function changing means capable of changing the execution contents of the second function stored in the second function storage means for each of the plurality of programs stored in the program storage means. The sewing machine according to 1, wherein   2. The function table stored in the table storage means, comprising: a class changing means capable of changing whether each of the plurality of auxiliary functions is the first function or the second function. The sewing machine according to 1 or 2.   When the classification changing unit changes the auxiliary function from the first function to the second function, the execution contents of the changed auxiliary function correspond to all of the plurality of programs stored in the second function storage unit. First setting change means for adding to the execution contents of the second function and deleting the changed execution contents of the auxiliary function from the execution contents of the first function stored in the first function storage means. The sewing machine according to claim 3, further comprising a sewing machine.   When the classification changing unit changes the auxiliary function from the second function to the first function, the first function storage unit stores the execution content predetermined for the changed auxiliary function. A second setting for adding to the execution content and deleting the changed execution content of the auxiliary function from the execution content of the second function corresponding to all of the plurality of programs stored in the second function storage unit. 5. The sewing machine according to claim 3, further comprising changing means.   The sewing control means can execute only one of the execution contents of the first function stored in the first function storage means and the execution contents of the second function corresponding to the program specified by the program specifying means. 6. The sewing machine according to claim 1, wherein execution of the second function is performed with priority. A cloth feed mechanism capable of transporting the cloth, and a needle bar which is attached with a sewing needle and is capable of reciprocating with respect to the cloth, the cloth being transported by the cloth feed mechanism and the needle bar reciprocatingly moving In a control method executed by a sewing machine that can automatically control the sewing operation based on a program that defines the content and procedure of the sewing operation for performing sewing on a cloth,
Each of the plurality of auxiliary functions related to the sewing operation is applied to all of the plurality of programs stored in the program storage unit that stores the plurality of programs, and the plurality of programs stored in the program storage unit. Table storage means for storing a function table that defines which of the second functions is applied individually to the program;
First function storage means for storing the execution contents of the first function defined by the function table;
Second function storage means for storing execution contents of the second function defined by the function table for each of the plurality of programs stored by the program storage means;
A method of controlling the sewing machine comprising:
Based on the program to be executed among the plurality of programs stored in the program storage means, the needle bar and the cloth feed mechanism are controlled to execute the sewing operation. In the sewing operation, The execution contents of the first function stored in the function storage means and the execution contents of the second function corresponding to the execution target program among the execution contents of the second function stored in the second function storage means. A method for controlling a sewing machine, comprising a step of executing the sewing machine.

Images