JP2014167194A - Sewing machine, sewing data preparation device and sewing time presentation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sewing machine, a sewing data preparation device and a sewing time presentation method which can provide a worker an empty feed time contained in a sewing time of one cycle based on sewing data.SOLUTION: A sewing machine can sew a pattern on a sewing object by controlling vertical motion of a needle bar and horizontal motion of a support on the basis of sewing data. A CPU of the sewing machine times an empty feed time (time TC) which is a total execution time of "feed" executed in a term sewing the pattern on the sewing object (S9, S13). The CPU of the sewing machine displays sewing time information based on the timed empty feed time (time TC) (S17).

Description

  The present invention relates to a sewing machine that performs sewing while moving a holding body that holds a sewing object relative to a needle bar that moves up and down, a device that can create sewing data used by the sewing machine, and a sewing machine based on the sewing data. The present invention relates to a method for displaying the sewing time.

  There is a sewing machine that sews a pattern while moving a holding body holding a sewing object horizontally relative to the needle bar by vertically moving a needle bar with a sewing needle attached to the lower end in accordance with sewing data. There is a device that provides a worker with one cycle of sewing time based on sewing data. One cycle based on the sewing data is an elapsed time from when the sewing machine starts sewing a pattern on the sewing object based on the sewing data to when it ends.

  For example, the apparatus described in Patent Document 1 calculates and displays a sewing time for one cycle based on sewing data based on a sewing machine model input by an operator. The device described in Patent Document 2 calculates and displays a sewing time for one cycle based on sewing data based on a sewing speed set by an operator.

Japanese Patent Laid-Open No. 4-132583 Japanese Patent Laid-Open No. 9-111637

  The sewing time of one cycle based on the sewing data includes an actual sewing time that is a time during which the sewing machine substantially sews the pattern, and an idle feeding time that is a time during which the sewing machine does not substantially sew the pattern. The idle feed time is the total execution time of the idle feed operation executed in one cycle of the sewing operation. The idle feed operation is an operation of the sewing machine that changes the position of the sewing object relative to the needle bar by moving the holding body in a state where the vertical movement of the needle bar is stopped at the upper position. The devices described in Patent Documents 1 and 2 cannot provide the operator only with the idle feed time including one cycle of sewing time based on the sewing data.

  An object of the present invention is to provide a sewing machine, a sewing data creation device, and a sewing time display method that can provide an operator with an idle feed time including a sewing time of one cycle based on sewing data.

  The sewing machine according to claim 1, wherein a needle bar capable of attaching a sewing needle to a lower end and capable of moving up and down, a moving mechanism capable of horizontally moving a holding body provided below the needle bar and holding a sewing object, and the sewing object Sewing execution means capable of sewing the pattern on the sewing object held by the holding body by controlling the needle bar and the moving mechanism based on sewing data indicating a sewing position of the pattern with respect to the object. In the sewing machine, the total of the feeding operation in which the holding body horizontally moves while the vertical movement of the needle bar is stopped at the upper position, which is executed during the period when the sewing execution means sews the pattern on the sewing object. It is characterized by comprising: first time measuring means capable of measuring an idle time that is an execution time; and time information display means capable of displaying sewing time information based on the idle time measured by the first time measuring means. .

  The sewing machine can sew a pattern on the sewing object by controlling the vertical movement of the needle bar and the horizontal movement of the holding body based on the sewing data. The sewing machine can measure the idle feed time which is the total execution time of the idle feed operation executed during the period when the pattern is sewn on the sewing object. The sewing machine can display sewing time information based on the measured idle feed time. By referring to the sewing time information, the operator can recognize the idle feed time including the sewing time of one cycle based on the sewing data. Therefore, the sewing machine can provide the operator with an idle feed time including a sewing time of one cycle based on the sewing data.

  The sewing machine according to claim 2, wherein the sewing execution means includes a total sewing time which is an elapsed time from the start to the end of sewing of the pattern on the sewing object, or the sewing execution means applies to the sewing object. A second timing means capable of measuring an actual sewing time, which is a total execution time of a sewing operation that is performed during a period of sewing the pattern and the needle bar is moved vertically while the needle bar is moved vertically; The time information display means can display the sewing time information based on the idle feed time measured by the first timing means and the total sewing time or the actual sewing time measured by the second timing means. It is characterized by that. In this case, the sewing machine can display the sewing time information based on the idle feed time and the total sewing time or the actual sewing time. Therefore, the sewing machine can provide the operator with the idle feed time in comparison with the total sewing time or the actual sewing time.

  4. The sewing machine according to claim 3, wherein the time information display means can display a ratio of the idle feed time to the total sewing time as the sewing time information. In this case, the sewing machine can provide the operator with the ratio of the idle feed time to the total sewing time.

  5. The sewing machine according to claim 4, wherein the time information display means can display the number of sewing objects of the sewing object corresponding to the idle feed time as the sewing time information. In this case, the sewing machine can provide the operator with the sewable number of sewing objects corresponding to the idle feed time.

  The sewing machine according to claim 5, further comprising a correction position display means capable of displaying a correction position including at least one of a sewing start position and a sewing end position at which the idle feed time becomes the shortest based on the sewing data. And In this case, the sewing machine can provide the operator with a correction position where the idle feed time is the shortest.

  The sewing data creation device according to claim 6 is a needle bar capable of attaching a sewing needle to a lower end and movable up and down, a moving mechanism provided below the needle bar and capable of horizontally moving a holding body for holding a sewing object, By controlling the needle bar and the moving mechanism, the sewing machine having a sewing execution means capable of sewing a pattern on the sewing object held by the holding body indicates a sewing position of the pattern with respect to the sewing object. A sewing data creation device capable of creating sewing data, based on the pattern set by an operator, sewing data generation means for generating the sewing data, and based on the sewing data generated by the sewing data generation means The sewing execution means is executed during a period in which the pattern is sewn on the sewing object, and is a total of the idle feeding operations in which the holding body moves horizontally while the vertical movement of the needle bar is stopped at the upper position. The first calculation means capable of calculating the idle feed time which is a row time, and the time information display means capable of displaying sewing time information based on the idle feed time calculated by the first calculation means. .

  The sewing data creation device can create sewing data used by a sewing machine that can sew a pattern on a sewing object by controlling vertical movement of the needle bar and horizontal movement of the holding body. The sewing data creation device can calculate the idle feed time which is the total execution time of the idle feed operation executed during the period of sewing the pattern on the sewing object. The sewing data creation device can display sewing time information based on the calculated idle feed time. By referring to the sewing time information, the operator can recognize the idle feed time including the sewing time of one cycle based on the sewing data. Therefore, the sewing data creation device can provide the operator with an idle feed time including one cycle of sewing time based on the sewing data.

  The sewing data creating apparatus according to claim 7, wherein an elapsed time from when the sewing execution means starts sewing the pattern to the sewing object after the sewing execution means ends based on the sewing data generated by the sewing data generation means. The total execution time of the sewing operation in which the holding body moves horizontally while the needle bar is moved up and down is executed during the total sewing time or the period when the sewing execution means sews the pattern onto the sewing object. A second calculating means capable of calculating an actual sewing time which is a time, wherein the time information display means is the idle time calculated by the first calculating means and the total sewing time calculated by the second calculating means. Alternatively, the sewing time information can be displayed based on the actual sewing time. In this case, the sewing data creation device can display the sewing time information based on the idle feed time and the total sewing time or the actual sewing time. Therefore, the sewing data creation device can provide the operator with the idle feed time in comparison with the total sewing time or the actual sewing time.

  9. The sewing data creation device according to claim 8, wherein the time information display means can display the ratio of the idle feed time in the total sewing time as the sewing time information. In this case, the sewing data creation device can provide the operator with the ratio of the idle feed time to the total sewing time.

  10. The sewing data creation device according to claim 9, wherein the time information display means can display the sewable number of the sewing object corresponding to the idle feed time as the sewing time information. In this case, the sewing data creation device can provide the operator with the number of sewing objects that can be sewn corresponding to the idle feed time.

  The sewing data creation device according to claim 10 can display a correction position including at least one of a sewing start position and a sewing end position at which the idle feed time becomes the shortest based on the sewing data generated by the sewing data generation means. The correction position display means is provided. In this case, the sewing data creation device can provide the operator with a correction position where the idle feed time becomes the shortest.

  The sewing time display method according to claim 11 includes: a needle bar that can be attached to a lower end and movable up and down; a moving mechanism that is provided below the needle bar and that can horizontally move a holding body that holds a sewing object; By controlling the needle bar and the moving mechanism, the sewing machine having a sewing execution means capable of sewing a pattern on the sewing object held by the holding body indicates a sewing position of the pattern with respect to the sewing object. A sewing time display method for displaying sewing time information based on sewing data, wherein the needle is executed during a period in which the sewing execution means sew the pattern on the sewing object based on the sewing data. The step of specifying the idle feed time which is the total execution time of the idle feed operation in which the holding body horizontally moves while the vertical movement of the bar is stopped at the upper position, and sewing time information based on the specified idle feed time is displayed. Characterized in that it comprises a step of.

  The sewing time display method is a method for displaying sewing time information based on sewing data used by a sewing machine that can sew a pattern on a sewing object by controlling the vertical movement of the needle bar and the horizontal movement of the holding body. is there. The sewing time display method specifies the idle feed time that is the total execution time of the idle feed operation executed during the period in which the pattern is sewn on the sewing object. The sewing time display method displays sewing time information based on the specified idle feed time. By referring to the sewing time information, the operator can recognize the idle feed time including the sewing time of one cycle based on the sewing data. Therefore, the sewing time display method can provide the operator with an idle feed time including one cycle of sewing time based on the sewing data.

  The sewing time display method according to claim 12, wherein the sewing execution means is a total sewing time which is an elapsed time from the start of sewing of the pattern to the sewing object to the end based on the sewing data, or An actual sewing time that is a total execution time of the sewing operation in which the holding body moves horizontally while the needle bar is moved up and down is specified while the sewing execution means sews the pattern on the sewing object. And the step of displaying the sewing time information displays the sewing time information based on the specified idle feed time and the specified total sewing time or the actual sewing time. . Therefore, the sewing time display method can provide the operator with the idle feed time in comparison with the total sewing time or the actual sewing time.

  14. The sewing time display method according to claim 13, wherein the step of displaying the sewing time information displays a ratio of the idle feed time to the total sewing time. In this case, the sewing time display method can provide the operator with the ratio of the idle feed time to the total sewing time.

  15. The sewing time display method according to claim 14, wherein the step of displaying the sewing time information displays a sewable number of the sewing object corresponding to the idle feed time. In this case, the sewing time display method can provide the operator with the number of sewing objects that can be sewn corresponding to the idle feed time.

  The sewing time display method according to claim 15, further comprising a step of displaying a correction position including at least one of a sewing start position and a sewing end position at which the idle feed time becomes the shortest based on the sewing data. . In this case, the sewing time display method can provide the operator with a correction position where the idle feed time is the shortest.

1 is a perspective view of a sewing machine 1. FIG. 2 is a right side view of a front end portion 7 of the sewing machine 1. FIG. 2 is a block diagram showing an electrical configuration of the sewing machine 1. FIG. It is explanatory drawing of the coordinate system 601 and the sewing possible range 611. FIG. It is a specific example of the setting screen 500. It is a flowchart of a sewing process. It is a specific example of the alerting | reporting screen 510. FIG. It is a specific example of a locus display screen 520. It is a flowchart of sewing data creation processing. It is a specific example of an alternative locus screen 530.

  Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. The upper side, the lower side, the left diagonally lower side, the right diagonal upper side, the left diagonal upper side, and the right diagonally lower side in FIG. 1 are the upper side, lower side, front side, rear side, left side, and right side of the sewing machine 1, respectively.

  The overall structure of the sewing machine 1 will be described with reference to FIG. The sewing machine 1 includes a bed portion 2, a pedestal column portion 3, and an arm portion 4. The bed unit 2 is placed on the table 95. The bed portion 2 extends in the front-rear direction and includes a vertical hook (not shown) and the like inside. The pedestal part 3 extends vertically upward from the rear side of the bed part 2. The pedestal 3 includes a sewing machine motor 112 (see FIG. 3) and the like. The arm portion 4 extends forward from the upper end of the pillar portion 3 so as to face the upper surface of the bed portion 2 and includes a front end portion 7 at the front end. The arm unit 4 includes a main shaft, a needle bar drive mechanism (not shown), and the like. The needle bar 10 extends downward from the lower end of the front end portion 7. The sewing needle 11 can be attached to and detached from the lower end of the needle bar 10.

  The sewing machine 1 includes a work table 5 and a transfer device 6 above the bed portion 2. The work table 5 includes a needle plate 501. The needle plate 501 has a needle hole 502 through which the sewing needle 11 can be inserted at a position immediately below the sewing needle 11 attached to the needle bar 10. The transfer device 6 includes a transfer plate 61, an elevating unit 62, a presser plate 63, a transfer plate holding unit 64, an X-axis moving mechanism (not shown), an arm unit 65, and a Y-axis moving mechanism (not shown).

  The transfer plate 61 is a plate member arranged in the horizontal direction, and has an opening having a rectangular shape in plan view. The transfer plate holding part 64 extends in the left-right direction, and supports the transfer plate 61 so as to be movable in the X-axis direction (left-right direction). The X-axis moving mechanism is provided inside the bed portion 2. The X-axis moving mechanism moves the transfer plate 61 in the X-axis direction (left-right direction) using the X-axis motor 114 (see FIG. 3) as a drive source. The arm portion 65 connected to the transfer plate holding portion 64 is connected to a Y-axis moving mechanism provided in the pedestal column portion 3. The Y-axis moving mechanism moves the arm portion 65 in the Y-axis direction (front-rear direction) using the Y-axis motor 116 (see FIG. 3) as a drive source. The transfer plate holding part 64 moves in the Y-axis direction (front-rear direction) as the arm part 65 moves.

  The transfer plate 61 supported by the transfer plate holding unit 64 moves together with the transfer plate holding unit 64. The transfer plate holding part 64 supports the elevating part 62 so that it can be elevated. The presser plate 63 is a rectangular frame-shaped plate member connected to the lower end of the elevating part 62. The opening of the presser plate 63 has substantially the same shape as the opening of the transfer plate 61. The operator places a sewing object (for example, a work cloth) on the transfer plate 61. When the elevating part 62 moves downward, the presser plate 63 descends. The presser plate 63 and the transfer plate 61 hold the sewing object from above and below. Hereinafter, the transfer plate 61 and the presser plate 63 are collectively referred to as a holding body 60.

  The sewing machine 1 includes an operation panel 8 provided on a table 95 and an operation box 30 connected to the operation panel 8. The operation panel 8 and the operation box 30 each include a key group for inputting various information and various instructions, and a display for displaying information. The operator uses the operation panel 8 or the operation box 30 when inputting information or instructions. The sewing machine 1 includes a control box (not shown) that stores the control device 100 (see FIG. 3) below the table 95. The operation panel 8 is connected to the control box via a cord (not shown). The operation box 30 can be connected to the operation panel 8 via the cable 9.

  With reference to FIG. 2, the structure around the front end 7 of the arm 4 will be described. The front end portion 7 includes a configuration for guiding the upper thread 55, a needle bar 10 to which a sewing needle 11 is attached, a presser bar 12 to which a presser foot 13 is attached, and the like. The configuration for guiding the upper thread 55 includes a secondary thread tensioner 15, a main thread tensioner 16, thread guides 17 and 18, a balance 19, and a thread guide 20 provided on the right side surface of the front end portion 7. The upper thread 55 includes a secondary thread tensioner 15, a main thread tensioner 16, a thread guide 17, a thread guide 18, a thread spool placed on a thread spool stand (not shown) provided on a table 95 (see FIG. 1). The needle 19 is inserted into the needle hole 111 of the sewing needle 11 via the balance 19 and the thread guide 20. As described above, the needle bar 10 extends downward from the lower end of the front end portion 7. The sewing machine motor 112 (see FIG. 3) rotates a main shaft (not shown). A needle bar drive mechanism (not shown) moves the needle bar 10 up and down as the main shaft rotates.

  The presser bar 12 extends downward from the lower end of the front end 7 on the left side (the back side in FIG. 2) of the needle bar 10. The presser foot 13 is attached to the lower end of the presser bar 12. The presser foot drive mechanism (not shown) moves the presser bar 12 up and down in synchronization with the vertical movement of the needle bar 10 accompanying the rotation of the main shaft. The presser foot 13 prevents the sewing target from being lifted upward by pressing the sewing target from above when the sewing needle 11 is removed from the sewing target. The distal end portion of the presser foot 13 is a cylindrical tube portion 131. The sewing needle 11 is inserted into the sewing object through the through hole of the cylindrical portion 131. The sewing needle 11 moves up and down through a needle hole 502 below the cylinder portion 131.

  The electrical configuration of the sewing machine 1 will be described with reference to FIG. The control device 100 of the sewing machine 1 includes a CPU 101, a ROM 102, a RAM 103, a nonvolatile memory 104, an input / output interface (I / F) 106, drive circuits 113, 115, 117, and a communication I / F 127. The CPU 101, ROM 102, RAM 103, nonvolatile memory 104, and communication I / F 127 are electrically connected to the input / output I / F 106 via the bus 105. The CPU 101 controls the sewing machine 1 and executes various calculations and processes related to sewing according to various programs stored in the ROM 102. The ROM 102 stores various programs and various initial setting parameters. The RAM 103 temporarily stores calculation results of the CPU 101, pointers, counters, and the like. The RAM 103 stores later-described times TA, TB, and TC, which are variables for storing times measured by an internal timer (not shown) of the sewing machine 1. The nonvolatile memory 104 stores sewing data, which will be described later, various setting information input by the operator, and the like.

  The drive circuits 113, 115, and 117 are electrically connected to the input / output I / F 106. The drive circuit 113 is electrically connected to the sewing machine motor 112. The CPU 101 controls the sewing machine motor 112 via the drive circuit 113. The sewing machine motor 112 rotates the main shaft. The drive circuit 115 is electrically connected to the X-axis motor 114. The drive circuit 117 is electrically connected to the Y-axis motor 116. The CPU 101 controls the X-axis motor 114 and the Y-axis motor 116 via the drive circuits 115 and 117, respectively. Both the X-axis motor 114 and the Y-axis motor 116 are pulse motors. The X-axis motor 114 and the Y-axis motor 116 move the holding body 60 in the X-axis direction and the Y-axis direction by driving the X-axis movement mechanism and the Y-axis movement mechanism, respectively.

  The CPU 101 controls the vertical movement of the needle bar 10 and the presser bar 12 and the rotation of the vertical hook by driving the sewing machine motor 112 and rotating the main shaft during sewing. The CPU 101 controls the position of the holding body 60 by driving the X-axis motor 114 and the Y-axis motor 116 based on the sewing data simultaneously with the driving of the sewing machine motor 112. The sewing machine 1 performs sewing on the sewing object by this operation.

  The communication I / F 127 is electrically connected to the input / output I / F 106. The communication I / F 127 is an interface for serial communication, for example. The sewing machine 1 can be connected to an external device via the communication I / F 127. In the present embodiment, the operation box 30 is connected to the sewing machine 1. As shown in FIG. 3, the operation box 30 is connected to the communication I / F 127 via the operation panel 8 connected by the cable 9.

  The start switch 121 and the operation panel 8 are electrically connected to the input / output I / F 106 of the control device 100, respectively. The start switch 121 is a pedal-type switch that is installed below the table 95 and connected to the control device 100 with a cord. The operator depresses the activation switch 121 when starting various operations (for example, sewing processing) of the sewing machine 1.

  The electrical configuration of the operation box 30 will be described with reference to FIG. The operation box 30 is a program creation machine capable of creating sewing data used by the sewing machine 1. As shown in FIG. 3, the operation box 30 includes a control device 300, a liquid crystal display (hereinafter referred to as LCD) 32, a touch panel 33, and a key group 34. The control device 300 includes a CPU 301, ROM 302, RAM 303, input / output I / F 306, communication I / F 307, and drive circuit 308. The CPU 301, ROM 302, RAM 303, and communication I / F 307 are electrically connected to the input / output I / F 306 via the bus 305. The drive circuit 308 is electrically connected to the input / output I / F 306. The drive circuit 308 is electrically connected to the LCD 32. The touch panel 33 is electrically connected to the input / output I / F 306. The key group 34 is electrically connected to the input / output I / F 306.

  The CPU 301 controls the operation box 30 and executes processing such as image display on the LCD 32 and input reception from the key group 34 according to various programs stored in the ROM 302 and data transmitted by the sewing machine 1. The RAM 303 temporarily stores calculation results of the CPU 301, pointers, counters, and the like. The communication I / F 307 is electrically connected to the input / output I / F 306. The communication I / F 307 is an interface for serial communication, for example. The operation box 30 is connected to the sewing machine 1 via the communication I / F 307. The CPU 101 transmits information input from the touch panel 33 and the key group 34 to the sewing machine 1.

  The LCD 32 has a display screen for displaying various information as images. The touch panel 33 is provided on the surface of the LCD 32. The touch panel 33 detects a position on the touch panel 33 (specifically, coordinates in the XY coordinate system corresponding to the display screen of the LCD 32) where the operator touches with a finger or a stylus pen. The CPU 101 of the sewing machine 1 can recognize the position detected by the touch panel 33. The operator can specify a specific position and input various instructions by touching the touch panel 33 while viewing an image displayed on the LCD 32. The key group 34 is for an operator to input various information and instructions. The key group 34 includes four-way arrow keys, numeric keys, function keys, and the like.

  The sewing data and the sewing possible range of the sewing machine 1 (the movable range of the holding body 60) will be described with reference to FIGS. The sewing data is data indicating the sewing position of the pattern with respect to the sewing object. Specifically, the sewing data indicates the positions of a plurality of needle drop points for sewing the pattern as a relative position between the position of the sewing needle 11 and the position of the holding body 60. The needle drop point is a predetermined position on the sewing target object that the sewing needle 11 sticks when the sewing needle 11 moves downward together with the needle bar 10. In the present embodiment, the position of the needle drop point is indicated by coordinate data of the coordinate system 601 set for the holding body 60. A coordinate system 601 is a coordinate system of the X-axis motor 114 and the Y-axis motor 116 (see FIG. 3).

  In the coordinate system 601, the X-axis plus direction is a direction from the left to the right of the sewing machine 1, and the Y-axis plus direction is a direction from the front to the back of the sewing machine 1. In the present embodiment, the origin O (X, Y, Z) = (0, 0, 0) of the coordinate system 601 is set so that the center point of the holding body 60 (more specifically, the region inside the opening of the presser plate 63) is the sewing needle. 11 (see FIG. 3). The position of the holding body 60 is referred to as an absolute origin position. This position can also be referred to as a position where the center point of the holding body 60 is directly above the needle hole 502. Since the transfer device 6 of the present embodiment does not move the holding body 60 in the Z direction (up and down direction of the sewing machine 1) during sewing, the Z coordinate of the coordinate data of the needle drop point is always zero.

  The sewing data is data for performing sewing while moving the holding body 60 so that the needle drop points indicated by the coordinate data are sequentially located immediately below the sewing needle 11 (see FIG. 3). Specifically, the sewing data of the present embodiment sequentially associates the number of drive pulses (including the rotation direction) of the X-axis motor 114 and the Y-axis motor 116 with the type indicating “sewing” or “feed”. It is the arranged data. “Sewing” is an operation in which the holding body 60 is moved and the sewing needle 11 is pierced into the sewing object at the needle drop point to form a stitch. During the “sewing” operation, the needle bar 10 moves up and down and the holding body 60 moves horizontally. “Feeding” is an operation in which no movement is formed and only the holding body 60 is moved. During the “feed” operation, the holding body 60 moves horizontally with the vertical movement of the needle bar 10 stopped at the upper position. The sewing data is not limited to the above format, and may be data in which the coordinate data of the needle drop point is associated with the type. The CPU 101 may calculate the rotation direction and the number of drive pulses of the X-axis motor 114 and the Y-axis motor 116 based on the coordinate data in the data each time the holding body 60 moves.

  A range in which the sewing machine 1 can perform sewing in an area inside the holding body 60 is referred to as a sewing range 611. In order to prevent interference between the sewing needle 11 and the holding body 60, the sewing range 611 is set to be smaller than the area inside the holding body 60. The sewing range 611 is, for example, a region that is symmetric in the X-axis direction and the Y-axis direction with the origin O of the coordinate system 601 as the center. In the present embodiment, the sewing range 611 is equal to the movable range of the holding body 60.

  The operator uses the touch panel 33 of the operation box 30 to set sewing information that is information related to the pattern to be sewn by the sewing machine 1. The sewing information includes a pattern to be sewn, a size (pitch) of a stitch for sewing the pattern, a sewing start position and a sewing end position of the pattern, a sewing order of a plurality of patterns, and the like. The sewing start position is a position of a needle drop point that first forms a seam when the sewing machine 1 sews a pattern. The sewing end position is the position of the needle drop point that finally forms the seam when the sewing machine 1 finishes the pattern. The CPU 301 creates sewing data based on the sewing information set by the operator. The CPU 301 transmits sewing data to the sewing machine 1 via the communication I / F 307. The CPU 101 stores the sewing data received via the communication I / F 127 in the nonvolatile memory 104.

  Specifically, when the CPU 301 detects an input of a sewing data creation instruction, the CPU 301 displays a setting screen 500 illustrated in FIG. The setting screen 500 is a screen for an operator to set a pattern, a pitch, a sewing start position, a sewing end position, a sewing order of a plurality of patterns, and the like. For example, the operator sets the pattern 400 on the setting screen 500 using the touch panel 33. The pattern 400 includes a circular first pattern 410 and a square second pattern 420. The operator sets a sewing start position 411 and a sewing end position 412 of the first pattern 410, and sets a sewing start position 421 and a sewing end position 422 of the second pattern 420. The operator sets the first pattern 410 first and the second pattern 420 later as the sewing order. The CPU 301 creates sewing data for sewing the pattern 400 based on various information set by the operator.

  The operator may create sewing data in the same manner as described above using an external computer capable of creating sewing data. In this case, the operator stores the created sewing data in an external storage medium, and inserts the external storage medium into a medium reading device (not shown) of the sewing machine 1. The CPU 101 reads out sewing data from an external storage medium inserted into a medium reading device (not shown) and stores it in the nonvolatile memory 104. Alternatively, the operator connects the external computer and the sewing machine 1 via a network (not shown). The CPU 101 stores the sewing data received from the medium reading device (not shown) via the network in the nonvolatile memory 104.

  The sewing process of the sewing machine 1 will be described with reference to FIG. When the operator depresses the start switch 121, the CPU 101 detects an input of an instruction to execute the sewing process. The sewing process in FIG. 6 starts when the CPU 101 detects an input of an execution instruction for the sewing process. The CPU 101 reads out a sewing processing program from the ROM 102 and executes it.

  First, the CPU 101 executes an initial operation (S1). The initial operation is an operation for shifting the sewing machine 1 to a ready state in which sewing can be executed. For example, the CPU 101 moves the sewing needle 11 to an upper position where it does not contact the sewing object. The CPU 101 executes “feed” and moves the needle entry point to the origin O of the coordinate system 601. Further, the CPU 101 reads out sewing data to be executed (for example, sewing data for sewing the pattern 400) from the nonvolatile memory 104.

  The CPU 101 waits until the start switch 121 is operated (S2). At this time, the operator places the sewing object on the transfer plate 61. When the worker depresses the activation switch 121 (S2: YES), the CPU 101 starts measuring the time TA by an internal timer (not shown) (S3). The time TA indicates the length of the total sewing time, which is the elapsed time from the start to the end of pattern sewing on the sewing object. In other words, the time TA indicates a sewing operation time of one cycle based on the sewing data. At the start of S3, the time TA is the initial value “0”. If the worker does not depress the start switch 121 (S2: NO), the process returns to S2. Therefore, the CPU 101 repeatedly executes S2 until the worker depresses the start switch 121.

  Next, the CPU 101 executes presser driving (S5). In the presser drive, the lifting / lowering unit 62 is moved downward by a presser drive mechanism (not shown), and the sewing object is sandwiched between the presser plate 63 and the transfer plate 61 from above and below. While the presser drive is executed in S5, the CPU 101 adds the time TB by an internal timer (not shown). The time TB indicates the length of the actual sewing time in the period (sewing operation period of one cycle) in which the pattern is sewn on the sewing object. The actual sewing time is the total time for which the CPU 101 executes an operation other than “feed” in the sewing operation period of one cycle. The actual sewing time of this embodiment is substantially equal to the total execution time of “sewing” in one cycle of the sewing operation period. At the start of S5, the time TB is the initial value “0”. That is, the CPU 101 adds the presser drive execution time to the time TB.

  Next, the CPU 101 determines whether there is a next pattern that is not sewn based on the sewing data (S7). If there is a next pattern that has not been sewn (S7: YES), the CPU 101 executes “feed” based on the sewing data, and moves the needle entry point to the sewing start position of the pattern to be sewn (S9). While executing “feed” in S9, the CPU 101 adds the time TC by an internal timer (not shown). The time TC indicates the length of the idle feed time in the period (sewing operation period of one cycle) in which the pattern is sewn on the sewing object. The idle feed time is the total execution time of “feed” in the sewing operation period of one cycle. At the start of S9, if the pattern to be sewn is the first pattern to be sewn, the time TC is the initial value “0”. The CPU 101 adds the execution time of “feed” in S9 to the time TC.

  Next, the CPU 101 executes “sewing” based on the sewing data to form stitches of the pattern to be sewn (S11). While executing “sewing” in S11, the CPU 101 adds the time TB by an internal timer (not shown). That is, the CPU 101 adds the execution time of “sewing” in S11 to the time TB. After execution of S11, the process returns to S7. Therefore, the CPU 101 repeatedly executes S9 and S11 until the next unsewn pattern disappears.

  When all the patterns based on the sewing data are sewn, the CPU 101 determines that there is no next pattern (S7: NO). The CPU 101 executes “feed” based on the sewing data, and moves the needle entry point to the origin O of the coordinate system 601 (S13). While executing “feed” in S13, the CPU 101 adds the time TC by an internal timer (not shown). That is, the CPU 101 adds the execution time of “feed” in S13 to the time TC.

  Next, the CPU 101 finishes counting the time TA by an internal timer (not shown) (S15). The CPU 101 displays sewing time information based on the times TA, TB, and TC on the LCD 32 (S17). Thereafter, the CPU 101 ends the sewing process.

  The above sewing process will be specifically described with reference to FIGS. In the following description, a case where the CPU 101 executes one cycle of sewing processing based on the sewing data for sewing the pattern 400 shown in FIG.

  When the CPU 101 starts the sewing process (FIG. 6), the CPU 101 executes an initial operation (S1), and when the worker depresses the start switch 121 (S2: YES), starts counting time TA (S3). ). The CPU 101 then performs presser driving and adds time TB (S5). Since both the first pattern 410 and the second pattern 420 have not been sewn (S7: YES), the CPU 101 moves the needle entry point to the sewing start position 411 of the first pattern 410 whose sewing order is first (S9). . At this time, the CPU 101 adds the time required for “feeding” from the origin O to the sewing start position 411 to the time TC. The CPU 101 executes “sewing” from the sewing start position 411 toward the sewing end position 412, and forms a seam for drawing the first pattern 410 on the sewing object (S11). At this time, the CPU 101 adds the time required for “sewing” from the sewing start position 411 to the sewing end position 412 to the time TB.

  Next, since the second pattern 420 is not sewn (S7: YES), the CPU 101 moves the needle entry point to the sewing start position 421 of the second pattern 420 (S9). At this time, the CPU 101 adds the time required for “feeding” from the sewing end position 412 to the sewing start position 421 to the time TC. The CPU 101 executes “sewing” from the sewing start position 421 toward the sewing end position 422, and forms a stitch for drawing the second pattern 420 on the sewing target object (S11). At this time, the CPU 101 adds the time required for “sewing” from the sewing start position 421 to the sewing end position 422 to the time TB.

  When both the first pattern 410 and the second pattern 420 are sewn (S7: NO), the CPU 101 moves the needle entry point to the origin O (S13). At this time, the CPU 101 adds the time required for “feeding” from the sewing end position 422 to the origin O to the time TC. Further, the CPU 101 ends the time TA and displays sewing time information (S15, S17).

  Specifically, the CPU 101 displays a notification screen 510 including sewing time information on the LCD 32 (S17). The notification screen 510 illustrated in FIG. 7 includes basic information 511, evaluation information 512, and a locus display button 513. The display items of the basic information 511 include “cycle time” indicating time TA, “non-sewing time” indicating time TC, and “ratio of non-sewing time in one cycle” indicating the ratio of time TC to time TA.

  The display items of the evaluation information 512 are “sewing number” indicating the number of sewing objects designated by the operator, “total cycle time” indicating a value obtained by multiplying the time TA by the number of sewing objects, and the time TC as the sewing object. Includes “total non-sewing time” indicating the value multiplied by the quantity of the item. Furthermore, the evaluation information 512 indicates an “expected number of cycles” (2.6 cycles in the example of FIG. 7) indicating a value obtained by dividing “total non-sewing time” by “cycle time” (that is, time TA). By referring to the “predicted number of cycles”, the operator can determine how many cycles the sewing time corresponding to the total non-sewing time generated when the sewing machine 1 sews the quantity of the sewing object designated by the operator corresponds to the sewing time. I can grasp. In other words, the operator can grasp the number of sewing objects that can be sewn corresponding to the total non-sewing time.

  When the operator presses the locus display button 513 using the touch panel 33, the CPU 101 displays the locus display screen 520 (see FIG. 8) on the LCD 32. A trajectory display screen 520 illustrated in FIG. 8 shows a trajectory pattern that is a trajectory of a needle drop point where the pattern 400 is sewn in one cycle of sewing processing. In the trajectory display screen 520, the trajectory of the needle drop point when “sewing” is executed is indicated by a solid line in the trajectory pattern, and the trajectory of the needle drop point when “feed” is executed is indicated by a dotted line. The trajectory display screen 520 shows numbers corresponding to the execution order of the trajectory of the needle drop point when “feed” is executed. By referring to the trajectory display screen 520, the operator can grasp the position, distance, order, etc., at which the non-sewing operation (that is, “feed”) is executed.

  According to the first embodiment described above, the sewing machine 1 can sew a pattern on the sewing object by controlling the vertical movement of the needle bar 10 and the horizontal movement of the holding body 60 based on the sewing data. The sewing machine 1 can measure the idle feed time (time TC) that is the total execution time of “feed” executed during the period in which the pattern is sewn on the sewing object (S9, S13). The sewing machine 1 can display sewing time information based on the measured idle feed time (time TC) (S17). The operator can recognize the idle feed time (time TC) including the sewing time of one cycle based on the sewing data by referring to the sewing time information. Therefore, the sewing machine 1 can provide the operator with an idle feed time (time TC) including a sewing time of one cycle based on the sewing data.

  The sewing machine 1 can display sewing time information based on the idle feed time (time TC) and the total sewing time (time TA) or the actual sewing time (time TB). Therefore, the sewing machine 1 can provide the operator with the idle feed time (time TC) in comparison with the total sewing time (time TA) or the actual sewing time (time TB). Furthermore, the sewing machine 1 can provide the operator with the ratio of the idle feed time (time TC) to the total sewing time (time TA), the number of sewing objects that can be sewn corresponding to the idle feed time (time TC), and the like.

  A second embodiment of the present invention will be described. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. Only differences from the first embodiment will be described.

  The sewing data creation process of the operation box 30 will be described with reference to FIG. When the operator presses a predetermined button on the touch panel 33, the CPU 301 detects an input of a sewing data creation instruction. The sewing data creation process in FIG. 9 starts when the CPU 301 detects an input of a sewing data creation instruction. The CPU 301 reads a program for creating sewing data from the ROM 302 and executes it.

  First, the CPU 301 sets sewing information (S51). Specifically, the CPU 301 displays a screen (not shown) for setting the above-described sewing information on the LCD 32. The operator uses the touch panel 33 to set sewing information on the screen displayed on the LCD 32.

  Next, the CPU 301 calculates a trajectory pattern based on the sewing information set in S51 (S53). Further, the CPU 301 sets a transfer speed, which is a speed at which the sewing machine 1 moves the holding body 60 horizontally (S55). Specifically, the nonvolatile memory 104 of the sewing machine 1 stores the spindle rotation speed set by the operator on the sewing machine 1. The ROM 302 of the operation box 30 stores the spindle speed and the maximum transfer speed in association with each model of the sewing machine 1. The CPU 301 communicates with the sewing machine 1 to acquire the model of the sewing machine 1 and the spindle speed stored in the nonvolatile memory 104. The CPU 301 specifies the maximum transfer speed corresponding to the acquired model and the spindle rotation speed with reference to the ROM 302. The CPU 301 sets the specified maximum transfer speed as the transfer speed of the sewing machine 1.

  The CPU 301 calculates times TA, TB, and TC based on the trajectory pattern calculated in S53 and the transfer speed set in S55 (S57). Specifically, based on the trajectory pattern calculated in S53, the CPU 301 determines the total length of the needle drop point trajectory for sewing the pattern in one cycle of sewing processing, the total length of the needle drop point trajectory when “sewing” is performed, The total length of the locus of the needle entry point when “feed” is executed is specified. The CPU 301 calculates the time TA by dividing the total length of the specified one-cycle trajectory by the transfer speed set in S55. The CPU 301 calculates the time TB by dividing the total length of the identified “sewing” locus by the transfer speed set in S55. The CPU 301 calculates the time TC by dividing the total length of the identified “feed” locus by the transfer speed set in S55.

  The CPU 301 displays sewing time information based on the times TA, TB, and TC calculated in S57 on the LCD 32 as in S17 (S59). Specifically, the CPU 301 can display the notification screen 510 (FIG. 7) and the trajectory display screen 520 (FIG. 8) as in S <b> 17 of the first embodiment.

  Furthermore, the CPU 301 can display an alternative locus screen 530 (see FIG. 10) on the LCD 32 as a screen including sewing time information based on the times TA, TB, and TC. The alternative locus screen 530 illustrated in FIG. 10 includes an alternative pattern 531 and a correction cycle number 532. The alternative pattern 531 indicates a trajectory pattern in which the trajectory of the needle drop point at the time of executing “feed” is the shortest.

  For example, it is assumed that the operator sets the pattern 400 shown in FIG. 5 as sewing information in S51. In this case, the CPU 301 causes the sewing start position 411 and the sewing end position 412 of the first pattern 410 and the sewing start position of the second pattern 420 so that the entire length of the locus of the needle drop point at the time of executing “feed” is the shortest. 421 and the sewing end position 422 are corrected, and the respective corrected positions are calculated. The CPU 301 calculates a corrected trajectory pattern based on the calculated correction position. The CPU 301 displays the calculated locus pattern after correction in the alternative pattern 531.

  The substitute pattern 531 indicates correction positions of the sewing start position 411, the sewing end position 412, the sewing start position 421, and the sewing end position 422, together with the corrected trace pattern. In the alternative pattern 531, the locus of the needle drop point when executing “sewing” is indicated by a solid line, and the locus of the needle drop point when executing “feed” is indicated by a dotted line. The trajectory display screen 520 shows numbers corresponding to the execution order of the trajectory of the needle drop point when “feed” is executed. By referring to the alternative pattern 531, the operator can grasp the trajectory pattern that shortens the total execution time of “feed”.

  The correction cycle number 532 indicates information on the cycle number based on the corrected locus pattern. For example, the CPU 301 calculates the “number of cycles after correction” that is an expected number of cycles based on the corrected locus pattern for the locus pattern calculated in S53 and displays it in the correction cycle number 532 (in the example of FIG. 9 cycles). The operator refers to the “number of cycles after correction” so that the total non-sewing time that occurs when the sewing machine 1 sews based on the corrected trajectory pattern is the number of cycles for the trajectory pattern calculated in S53. You can see if it corresponds to time.

  Returning to FIG. After execution of S59, the CPU 301 determines whether there is an instruction to create sewing data (S61). If it is determined that the operator has input a sewing data creation instruction on the touch panel 33 (S61: YES), the CPU 301 creates sewing data based on the sewing information set in S51 (S63). The CPU 301 transmits the created sewing data to the sewing machine 1 and stores it in the nonvolatile memory 104. Thereafter, the CPU 301 ends the sewing data creation process. When it is determined that there is no instruction to create sewing data (S61: NO), the CPU 301 returns the process to S51. In S51, the operator can reset the sewing information in accordance with, for example, the corrected locus pattern.

  According to the second embodiment described above, the operation box 30 controls the sewing data used by the sewing machine 1 that can sew a pattern on the sewing object by controlling the vertical movement of the needle bar 10 and the horizontal movement of the holding body 60. Can be created. The operation box 30 can calculate the idle feed time (time TC) that is the total execution time of “feed” executed during the period of sewing the pattern on the sewing object (S57). The operation box 30 can display sewing time information based on the calculated idle feed time (time TC) (S59). The operator can recognize the idle feed time (time TC) including the sewing time of one cycle based on the sewing data by referring to the sewing time information. Therefore, the operation box 30 can provide the operator with the idle feed time (time TC) including the sewing time of one cycle based on the sewing data.

  The operation box 30 can display sewing time information based on the idle feed time (time TC) and the total sewing time (time TA) or the actual sewing time (time TB). Therefore, the operation box 30 can provide the operator with the idle feed time (time TC) in comparison with the total sewing time (time TA) or the actual sewing time (time TB). The operation box 30 can provide the operator with the ratio of the idle feed time (time TC) to the total sewing time (time TA), the number of sewing objects that can be sewn corresponding to the idle feed time (time TC), and the like. Furthermore, the operation box 30 can provide the operator with a correction position where the idle feed time (time TC) is the shortest.

  In the first embodiment, the transfer device 6 corresponds to the “movement mechanism” of the present invention. The CPU 101 that controls the needle bar 10 and the transfer device 6 corresponds to “sewing execution means” of the present invention. The CPU 101 that executes S9 and S13 corresponds to the “first timing unit” of the present invention. The CPU 101 that executes S17 corresponds to the “time information display unit” of the present invention. The CPU 101 that executes S5 and S11 corresponds to the “second timing unit” of the present invention. The processes in S9 and S13 in FIG. 6 correspond to the “step for specifying the idle feed time” in the present invention. The process of S17 corresponds to the “step for displaying sewing time information” of the present invention. The processes of S5 and S11 correspond to the “step for specifying actual sewing time” of the present invention.

  In the second embodiment, the operation box 30 corresponds to the “sewing data creation device” of the present invention. The transfer device 6 corresponds to the “movement mechanism” of the present invention. The CPU 101 that controls the needle bar 10 and the transfer device 6 corresponds to “sewing execution means” of the present invention. The CPU 301 that executes S57 corresponds to “first calculation means” and “second calculation means” of the present invention. The CPU 301 that executes S59 corresponds to “time information display means” and “correction position display means” of the present invention. The process of S57 in FIG. 9 corresponds to the “step for specifying the idle feed time” and the “step for specifying the actual sewing time” of the present invention. The process of S59 corresponds to “step for displaying sewing time information” and “step for displaying correction position” of the present invention.

  The present invention can be variously modified in addition to the above-described embodiment. For example, in the first and second embodiments, the CPUs 101 and 301 may display the idle feed time (time TC) and the actual sewing time (time TB) as the sewing time information, or the idle feed time (time TC), The total sewing time (time TA) and the actual sewing time (time TB) may all be displayed. The CPUs 101 and 301 may specify the time TA by adding the time TB and the time TC without counting the time TA.

  In the first embodiment, the CPU 101 may not add the press drive execution time to the actual sewing time (time TB). The CPU 101 may display the alternative locus screen 530 (see FIG. 10), similarly to S59 of the second embodiment.

  In the first embodiment, when all the patterns based on the sewing data are sewn in the sewing process (FIG. 6), the CPU 101 moves the needle entry point to the origin O of the coordinate system 601. You may move.

  In the second embodiment, the CPU 301 that executes S55 communicates with the sewing machine 1, and in addition to the model of the sewing machine 1 and the spindle speed, information on the spindle speed (for example, the spindle speed is from the start of rotation of the spindle). The time required to reach the maximum number of revolutions) is obtained from the sewing machine 1. The CPU 301 may set different transfer speeds according to the elapsed time from the start of execution of “feed” based on various information acquired from the sewing machine 1, or set different transfer speeds for “feed” and “sewing”. It may be set. In this case, the CPU 301 that executes S57 considers the time TA, TB, and the time TA, TB in consideration of the fact that the transfer speed becomes slow at the start and end of “feed”, and that the transfer speed differs between “feed” and “sewing”. TC can be calculated more accurately.

  The sewing data creation process (FIG. 9) may be executed by an electronic device other than the operation box 30. For example, the CPU of an external computer (for example, a personal computer) may execute the sewing data creation process (FIG. 9). In this case, the operator can create sewing data with an external computer and can grasp sewing time information based on the created sewing data. The CPU 101 of the sewing machine 1 may execute sewing data creation processing (FIG. 9). In this case, the operator can create sewing data with the sewing machine 1, can grasp sewing time information based on the created sewing data, and can execute sewing based on the created sewing data.

  The CPU of the electronic apparatus for the operator to edit the sewing pattern may execute only S51 to S59 of the sewing data creation process (FIG. 9). The electronic device can provide the operator with sewing time information regarding the edited pattern without creating sewing data.

1 Sewing machine 6 Transfer device 10 Needle bar 11 Sewing needle 30 Operation box 101 CPU
301 CPU
400 pattern 410 first pattern 411 sewing start position 412 sewing end position 420 second pattern 421 sewing start position 422 sewing end position 510 notification screen 520 track display screen 530 alternative track screen

Claims (15)

A needle bar capable of attaching a sewing needle to the lower end and moving up and down;
A moving mechanism that is provided below the needle bar and that can horizontally move a holding body that holds a sewing object;
Sewing execution means capable of sewing the pattern on the sewing object held by the holding body by controlling the needle bar and the moving mechanism based on sewing data indicating a sewing position of the pattern with respect to the sewing object. In a sewing machine comprising
This is a total execution time of the feeding operation in which the holding body is horizontally moved in a state where the vertical movement of the needle bar is stopped at the upper position, which is executed during a period when the sewing execution means sews the pattern on the sewing object. A first timing means capable of timing the idle feed time;
A sewing machine comprising: time information display means capable of displaying sewing time information based on the idle feed time timed by the first time measuring means. The total sewing time, which is the elapsed time from when the sewing execution means starts sewing the pattern to the sewing object to the end thereof, or during the period when the sewing execution means sew the pattern onto the sewing object. A second timing means capable of timing an actual sewing time, which is a total execution time of a sewing operation that is executed and the holding body moves horizontally with the needle bar moving up and down;
The time information display means can display the sewing time information based on the idle feeding time measured by the first time measuring means and the total sewing time or the actual sewing time timed by the second time measuring means. The sewing machine according to claim 1, wherein the sewing machine is provided.   The sewing machine according to claim 2, wherein the time information display means can display a ratio of the idle feed time to the total sewing time as the sewing time information.   The sewing machine according to claim 2 or 3, wherein the time information display means is capable of displaying a sewing possible number of the sewing object corresponding to the idle feed time as the sewing time information.   5. A correction position display means capable of displaying a correction position including at least one of a sewing start position and a sewing end position where the idle feed time becomes the shortest based on the sewing data. The sewing machine according to any one of the above. A needle bar capable of attaching a sewing needle to the lower end and capable of moving up and down, a moving mechanism provided below the needle bar and capable of horizontally moving a holding body holding a sewing object, and controlling the needle bar and the moving mechanism Thus, a sewing data creation device capable of creating sewing data indicating a sewing position of the pattern with respect to the sewing object is used by a sewing machine having sewing execution means capable of sewing a pattern on the sewing object held by the holding body. Because
Sewing data generating means for generating the sewing data based on the pattern set by an operator;
On the basis of the sewing data generated by the sewing data generating means, the sewing execution means is executed during a period in which the pattern is sewn on the sewing object, and the vertical movement of the needle bar is stopped at the upper position. A first calculation means capable of calculating an idle feed time which is a total execution time of an idle feed operation in which the holding body moves horizontally;
Sewing data generating apparatus, comprising: time information display means capable of displaying sewing time information based on the idle feed time calculated by the first calculating means. Based on the sewing data generated by the sewing data generating means, the total sewing time, which is the elapsed time from when the sewing execution means starts sewing the pattern to the sewing object to when it ends, or the sewing It is possible to calculate an actual sewing time which is a total execution time of the sewing operation which is executed during a period in which the execution unit sews the pattern on the sewing object and the needle bar moves up and down horizontally. A second calculating means,
The time information display means can display the sewing time information based on the idle feed time calculated by the first calculation means and the total sewing time or the actual sewing time calculated by the second calculation means. The sewing data creation device according to claim 6, wherein the sewing data creation device is provided.   The sewing data creation device according to claim 7, wherein the time information display means can display a ratio of the idle feed time to the total sewing time as the sewing time information.   9. The sewing data creation device according to claim 7 or 8, wherein the time information display means is capable of displaying a sewing possible number of the sewing object corresponding to the idle feed time as the sewing time information. .   Correction position display means capable of displaying a correction position including at least one of a sewing start position and a sewing end position where the idle feed time becomes the shortest based on the sewing data generated by the sewing data generation means. The sewing data creation device according to any one of claims 6 to 9, characterized by the above. A needle bar capable of attaching a sewing needle to the lower end and capable of moving up and down, a moving mechanism provided below the needle bar and capable of horizontally moving a holding body holding a sewing object, and controlling the needle bar and the moving mechanism Thus, sewing time information based on sewing data indicating a sewing position of the pattern with respect to the sewing object is displayed, which is used by a sewing machine having sewing execution means capable of sewing a pattern on the sewing object held by the holding body. Sewing time display method for
Based on the sewing data, the holding body is horizontally moved while the vertical movement of the needle bar is stopped at the upper position, which is executed during a period when the sewing execution means sews the pattern onto the sewing object. A step of identifying the idle feed time which is the total execution time of the feed operation;
And a step of displaying the sewing time information based on the specified idle feed time. Based on the sewing data, the total sewing time, which is the elapsed time from when the sewing execution means starts sewing the pattern to the sewing object to the end, or when the sewing execution means applies the sewing object to the sewing object. A step of specifying an actual sewing time that is a total execution time of a sewing operation that is performed during a period of sewing the pattern and the holding body horizontally moves while the needle bar is moved up and down,
The step of displaying the sewing time information displays the sewing time information based on the specified idle feed time and the specified total sewing time or the actual sewing time. Sewing time display method.   The sewing time display method according to claim 12, wherein the step of displaying the sewing time information displays a ratio of the idle feed time to the total sewing time.   The sewing time display method according to claim 12 or 13, wherein the step of displaying the sewing time information displays a sewable number of the sewing object corresponding to the idle feed time.   15. The method according to claim 11, further comprising a step of displaying a correction position including at least one of a sewing start position and a sewing end position at which the idle feed time becomes the shortest based on the sewing data. Sewing time display method.

Images