JP2009160391A - Sewing recorder of sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily analyze a working pattern of an operator by recognizing the driving time of a sewing machine for each rotation speed. <P>SOLUTION: The sewing recorder of the sewing machine includes: rotation speed measuring means 29 for measuring the rotation speed of a sewing machine main shaft; cumulative time calculation means 30 for accumulating a time during which the measured rotation speeds exceed reference rotation speeds, for each of the plurality of reference rotation speeds set beforehand, and calculating the cumulative times for the respective reference rotation speed; cumulative data preparation means 31 for preparing cumulative data for associating the plurality of reference rotation speeds with the calculated cumulative times; and cumulative data display means 41 for displaying the cumulative data. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sewing recording apparatus for a sewing machine, and more particularly to a sewing recording apparatus for a sewing machine that records a sewing situation based on a rotational speed of a main spindle of a sewing machine and a sewing time.

  From the viewpoint of improving the sewing work by grasping the sewing situation of the operator who performs the sewing work of the sewing machine, there has been a sewing recording device for the sewing machine that measures the transition of the rotational speed of the sewing machine spindle during the sewing work. Used (see, for example, Patent Document 1).

  This conventional sewing sewing recording apparatus measures the rotational speed of the sewing machine main spindle during sewing work by detecting the rotational speed of the sewing machine main spindle, and records the detected rotational speed at every predetermined time. It has become. The sewing machine recording apparatus displays the recorded change in the rotational speed of the main spindle for each predetermined time on the operation panel 41 as a graph of time versus rotational speed as shown in FIG. ing.

JP 2006-167069 A

  Here, from the viewpoint of improving the sewing work of the operator, it is necessary to analyze the work pattern of the sewing work unique to each worker by grasping the drive time of the sewing machine for each rotation speed of the sewing machine spindle. It is.

  However, according to the sewing recording apparatus for the sewing machine described above, only a graph of the temporal change in the rotational speed of the main spindle of the sewing machine is displayed on the operation panel 41. It was difficult and time-consuming to analyze point i) and find a point of focus for improving the sewing work.

  The present invention has been made in view of these points, and is capable of grasping the total of driving time of the sewing machine for each rotation speed, thereby enabling easy analysis of the work pattern unique to the operator. An object of the present invention is to provide a sewing recording apparatus.

  In order to achieve the above object, the sewing machine recording apparatus according to the present invention is characterized by a rotational speed measuring means for measuring the rotational speed of the main spindle of the sewing machine and the measurement for each of a plurality of preset reference rotational speeds. Cumulative time calculation means for calculating a cumulative time for each of the reference rotational speeds by accumulating times when the rotational speed exceeds the respective reference rotational speeds, the plurality of reference rotational speeds and the calculated cumulative time In this regard, there is provided cumulative data creating means for creating cumulative data corresponding to the above and cumulative data display means for displaying the cumulative data.

  According to the sewing recording apparatus of the sewing machine according to the present invention, the rotational speed of the sewing machine spindle is measured by the rotational speed measuring means, and the driving time of the sewing machine for each of the plurality of reference rotational speeds is accumulated by the cumulative time calculating means. Cumulative data in which a plurality of reference rotational speeds are associated with the cumulative time can be created by the data creation means, and the created cumulative data can be displayed. Thereby, the operator of the sewing work can automatically acquire the accumulated time versus the reference rotation speed, and can grasp the work pattern using the accumulated time versus the rotation speed.

  According to the sewing recording apparatus for a sewing machine according to claim 1, by displaying the accumulated data in which the accumulated time is associated with the reference rotation speed in the form of a table, a graph, or the like, for example, an operator can perform a predetermined low speed It is possible to easily grasp the work pattern unique to each worker, such as the driving time of the sewing machine below is twice as long as that of other people, thereby analyzing the work pattern for each worker, It is possible to find a point of focus for improving the sewing work. As a result, it is possible to improve the sewing work efficiency of each worker.

  According to the sewing recording device for the sewing machine according to claim 2, since the accumulated data for each operator can be automatically acquired, the same effect as described in claim 1 can be obtained, and the work pattern for each worker can be obtained. It can be acquired more easily.

  According to the sewing machine recording apparatus of claim 3, since the accumulated data can be output to the outside, the same effect as described in claim 1 can be obtained, and the accumulated data can be output to a personal computer or the like. This makes it possible to analyze work patterns in more detail.

  Hereinafter, an embodiment of a sewing machine recording apparatus according to the present invention will be described with reference to FIGS.

  FIG. 1 is a schematic front view showing a sewing machine in which the sewing recording apparatus of the sewing machine according to the present embodiment is used, and FIG. 2 is a block diagram showing a configuration of the sewing recording apparatus of the sewing machine of FIG.

  As shown in FIG. 1, the sewing machine body 6 in the sewing machine 1 is provided with a needle 5 supported by a needle bar 3, and a sewing machine main shaft (not shown) is connected to the needle bar 3 and supported by the needle bar 3. The needle 5 thus moved is moved up and down by the rotation of the sewing machine main shaft driven by the main shaft motor 7.

  An encoder 9 is attached to the pulley of the sewing machine main shaft, and the encoder 9 generates a pulse signal having a frequency proportional to the rotational speed of the sewing machine main shaft by the rotation of the sewing machine main shaft.

  Further, the sewing machine 1 is provided with a pedal 10, and the sewing machine 1 starts sewing by rotating the spindle motor 7 when a sewing operator performs a forward stepping operation of the pedal 10, By performing the stepping operation, thread trimming is performed and sewing is completed.

  The sewing machine 1 has a sewing machine control device 11. The sewing machine control device 11 includes a CPU 12 that controls the entire sewing of the sewing machine 1, an EEPROM, an EPROM, etc. as recording means for storing calculated data, detection, and measured data. The memory 13 includes a ROM 15 that stores a sewing program, a RAM 16 that provides a work area, and the like. The sewing machine control device 11 controls sewing according to the depression amount of the pedal 10 in accordance with sewing parameters, sewing data, and other various commands recorded in the memory 13 and the ROM 15.

  Then, when the sewing machine control device 11 detects that the front stepping operation of the pedal 10 has been performed, the sewing machine control command 11 stores the sewing machine start command and drives the spindle motor 7 of the sewing machine 1 to move the needle 5 up and down, The fabric is sewn by feeding the fabric at a predetermined fabric feed pitch in accordance with the vertical movement of 5. At this time, the sewing machine control device 11 controls driving of the spindle motor 7 and various actuators 18 such as a solenoid valve and a motor in accordance with signals from the various sensors 17 and sewing data and adjustment data stored in the memory 13. And sewing. Further, when the sewing machine control device 11 detects that the pedal 10 has been depressed, the sewing machine control device 11 stores a thread trimming command, performs thread trimming, and ends sewing.

  The sewing machine control device 11 also includes a rotational speed measuring means 29 that measures the rotational speed of the sewing machine spindle based on the pulse signal output from the encoder 9, and stores the sewing machine start command in the sewing machine control device 11 to store the sewing machine. When one spindle motor 7 is driven, the rotation speed of the sewing machine spindle is measured every predetermined time, and the rotation speed data is recorded in the memory 13 functioning as the rotation speed recording means.

  The sewing machine 1 also includes a timer 19 as time measuring means. The sewing machine control device 11 determines the time from when the sewing machine start command is generated by the timer 19 until the thread trimming command is generated, and the thread trimming command. The time from when it occurs to when the next thread trimming command is generated is measured, and data of these measured times is recorded in the memory 13.

  Furthermore, the sewing machine 1 includes an operation device 20 that functions as worker data input means for inputting worker data for specifying a sewing manufacturer of the sewing machine and sets various operations of the sewing machine 1. Is provided with a display unit 21 comprising a liquid crystal display panel. A transparent touch panel type operation button 22 is arranged on the display unit 21 so as to overlap with each other, and a large number of function buttons 23 are arranged on the periphery of the display unit 21.

  The operation device 20 includes a CPU 25, a memory 26 such as an EEPROM or an EPROM as a recording means for storing measured data, a ROM 27, and a RAM 28. The CPU 25 is operated by operating the operation buttons 22 and the function buttons 23. Various calculations or settings are performed in accordance with the received signals.

  Further, the operating device 20 uses the rotational speed data measured by the rotational speed measuring means 29 for a plurality of preset reference rotational speeds based on the rotational speed data of the machine spindle recorded in the memory 13 of the sewing machine control device 11. Is accumulated by the above-described plurality of reference rotational speeds and cumulative time calculating means 30, and the cumulative time calculating means 30 for calculating the cumulative time for each reference rotational speed by accumulating the time over which each reference rotational speed is exceeded. Cumulative data creation means 31 for creating cumulative data corresponding to the cumulative time, and cumulative data created by functioning together with the display unit 21 are displayed on the display unit 21 in the form of a graph of cumulative time versus the reference rotational speed. Total data display means 41 is provided. Further, the controller device 20 includes a timer 32 as time measuring means.

  The sewing machine control device 11 and the operation device 20 can communicate with each other through the interfaces 33 and 35, respectively, and can exchange various data with each other. According to the data set in the operating device 20 input from the operating device 20, the spindle motor 7 and various actuators 18 are controlled to perform sewing.

  Further, the operation device 20 can exchange various data with an external computer 37 via another interface 36, and the above-mentioned accumulated data can be exchanged with the external computer via this interface 36. 37 can be output. Furthermore, it is possible to communicate with a detachable recording medium 39 that functions as an external storage medium via another interface 38, and it is possible to read data recorded on the detachable recording medium 39 and to operate the operating device. Various data such as the above-mentioned accumulated data of 20 can be recorded and stored in the removable recording medium 39. Accordingly, the controller device 20 also functions as an output unit that outputs the above-described accumulated data to the outside.

  Next, the measurement of the rotational speed of the sewing machine spindle by the sewing recording device 2 of the sewing machine 1 according to the present embodiment will be described with reference to FIG. In the present embodiment, the rotational speed of the sewing machine main shaft will be described as the passage of time versus the rotational speed of the sewing machine main shaft.

  As shown in FIG. 3, first, when the operator turns on the power switch 8 of the sewing machine 1, the sewing machine control device 11 displays an initial screen on the display unit 21 of the operation device 20 and stores various data. Initialization is performed (ST1).

  Subsequently, the sewing machine control device 11 monitors whether or not a forward stepping operation of the pedal 10 has been performed by an operator (ST2), and when a front stepping operation is detected (Yes in ST2), a sewing machine activation command is issued. Store (ST3), and drive the spindle motor 7 to rotate the sewing machine spindle (ST4).

  On the other hand, when the front stepping operation is not detected (No in ST2), the operation button 22 or function of the operation device 20 is detected by detecting whether or not the operation button 22 or function button 23 of the operation device 20 is operated. It is determined whether or not the operator data is input by the operation of the button 23 and the worker is changed (ST5). When the sewing machine control device 11 determines that the worker has been changed (Yes in ST5), the sewing machine control device 11 stores the changed worker data of the worker in the memory 13 (ST6). Then, after storing the worker data in the memory 13 (ST6) or when it is determined that the worker has not been changed (No in ST5), the sewing machine control device 11 continues to operate the operation button 22 of the operation device 20. It is determined whether or not the work process has been changed by operating the function button 23 (ST7).

  If it is determined that the work process has been changed (Yes in ST7), the work process data of the changed work process is stored in the memory 13. (ST8). Then, after storing the work process data in the memory 13 (ST8) or when it is determined that the work process has not been changed (No in ST7), the sewing machine control device 11 determines whether or not a front stepping operation has been performed. (ST2).

  Further, the sewing machine control device 11 monitors whether or not the forward stepping operation of the pedal 10 continues (ST9) after rotating the sewing machine main shaft (ST4), and when the forward stepping operation continues (ST9). Yes), while continuously rotating the sewing machine main spindle (ST4), monitoring whether or not the forward stepping operation continues is repeated (ST9). On the other hand, when it is detected that the front stepping operation has ended (No in ST9), the sewing machine control device 11 stores a start / stop command (ST10) and stops the rotation of the sewing machine spindle (ST11). Then, the sewing machine control device 11 monitors whether or not the rear stepping operation of the pedal 10 has been performed while the rotation of the sewing machine spindle is stopped (ST12). In ST12, No), it is monitored whether a forward stepping operation of the pedal 10 has been performed (ST2). On the other hand, when the rear stepping operation is performed (Yes in ST12), the thread trimming command is stored in the memory 13 (ST13), the thread trimming is performed (ST14), the sewing is finished, and the operator finishes the sewing machine 1. Until the power switch 8 is turned off, it is monitored whether or not the operator has stepped on the pedal 10 (ST2).

  At this time, as shown in FIG. 4, when the operator turns on the power switch 8 of the sewing machine 1, the rotation speed measuring means 29 of the operating device 20 determines whether the sewing machine spindle is rotating by periodic interruption processing. Is monitored (ST20). Here, when it is determined that the sewing machine spindle is rotating (Yes in ST20), the rotation speed measuring means 29 starts measuring the rotation speed of the sewing machine spindle (ST21), and measures the rotation speed. It is determined whether or not a predetermined measurement time has been reached (ST22). The predetermined time is a reference unit time for recording the sewing situation, and is 100 msec in this embodiment. When the rotational speed measuring unit 29 determines that the predetermined measurement time has been reached (Yes in ST22), the CPU 12 calculates the rotational speed of the sewing machine spindle by taking in a pulse signal from the encoder 9; The measured rotation speed is recorded in the memory 26 (ST23).

  On the other hand, the rotational speed measuring means 29 determines that the sewing machine spindle is not rotating (No in ST20), or determines that the predetermined measurement time for measuring the rotational speed has not been reached (No in ST22). ) Terminates the process without measuring the rotational speed of the sewing machine spindle. The process of monitoring the rotation of the sewing machine spindle by the rotation speed measuring means 29 and the process of measuring the rotation speed when the sewing machine spindle is rotating are turned off by the operator. Until it is done.

  Next, a process of creating accumulated data by accumulating the driving time for each rotational speed of the sewing machine 1 using the recorded rotational speed data and displaying the created accumulated data as a graph will be described with reference to FIGS. explain.

  In the present embodiment, the calculation of the cumulative time by the cumulative time calculation means 30 shown in FIG. 5 is automatically executed every time the thread trimming shown in ST14 of FIG. 3 is performed. First, as shown in FIG. 5, the accumulated time calculating means 30 of the operating device 20 reads the worker data and work process data of the sewing work started after the previous thread trimming from the memory 13 (ST30), and the read work. Based on the worker data and work process data, a cumulative data recording area for the work process of the worker is created (ST31).

  As shown in FIG. 6, the accumulated data recording area is an area for recording accumulated data created by the accumulated data creating means 41 based on the accumulated time calculated by the accumulated time calculating means 30. In this embodiment, as each reference rotation speed, the reference rotation speed is set in advance in the accumulated data recording area in units of 500 rpm from the rotation speed of the sewing machine main shaft of 100 rpm to the rotation speed of 500 rpm or later and the rotation speed of 5500 rpm. The accumulated time with respect to the reference rotational speed can be recorded.

  Subsequently, the cumulative time calculation means 30 reads the rotational speed data from the memory 13 of the sewing machine control device 11 in the order in which they are stored (ST32). First, the numerical value of the read rotational speed data is the smallest in the cumulative data recording area. It is determined whether or not the rotation speed is higher than the reference rotation speed (ST33). When the accumulated time calculation means 30 determines that the read rotation speed data is larger than the minimum reference rotation speed (Yes in ST33), the time accumulation corresponding to the minimum reference rotation speed in the accumulated data recording area. The reference unit time is added to the data (ST34). Thus, the reference unit time is added to the time accumulated data corresponding to each reference rotation speed in the accumulated data recording area when the rotation speed data read from the memory 13 is larger than each reference rotation speed.

  Further, the accumulated time calculating means 30 determines whether or not there is the next largest reference rotation speed in the accumulated data recording area (ST35), and if it is determined that there is the next largest reference rotation speed (Yes in ST35). ), It is determined whether or not the read rotational speed data is larger than the next largest reference rotational speed (ST36). When the accumulated time calculation means 30 determines that the read rotation speed data is larger than the next largest reference rotation speed (Yes in ST36), the accumulated time calculation means 30 adds the reference unit to the time accumulation data corresponding to the corresponding reference rotation speed. After adding the time (ST34), it is determined whether or not there is a next higher reference rotational speed in the cumulative data recording area (ST35).

  On the other hand, when the accumulated time calculation means 30 determines that the read rotation speed data is the same as or smaller than the minimum reference rotation speed of the accumulated data recording area (No in ST33), the next larger reference rotation speed is determined. If it is determined that there is no speed (No in ST35), or if it is determined that the read rotational speed data is the same or smaller than the next largest reference rotational speed (No in ST36), the rotational speed read in ST32 The process of the accumulated time calculating means 30 is terminated, and the process of the accumulated data creating means 31 executed in ST37 to ST41 is shifted to.

  Here, the cumulative data creating means 31 determines whether or not the rotational speed data further stored in the memory 13 exists (ST37). If it is determined that the rotational speed data exists (Yes in ST37), it is determined whether the operator (sewing manufacturer) or the work process (sewing work process) has been changed (ST38). The accumulated data creation means 31 stores worker data and work process data in the memory 13, and when it is determined that the worker or the work process has been changed (Yes in ST38), the read worker data. Based on the work process data, it is determined whether or not there is a cumulative data recording area for the work process of the worker (ST39). If it is determined that each accumulated data recording area exists (Yes in ST39), the accumulated data creating means 30 changes the accumulated data recording area to the accumulated data recording area of the work process of the corresponding worker. (ST40). On the other hand, if it is determined that there is no cumulative data recording area for the work process for the corresponding worker (No in ST39), a new cumulative data recording area for the work process for the worker is newly created (ST41). .

  Further, the cumulative data creating means 31 determines that the worker or the work process has not been changed (No in ST38), changes the target for comparing the read rotation speed data (ST40), or a predetermined value. When a cumulative data recording area for each worker and work process is newly created for each rotation speed (ST41), the process is transferred again to the cumulative time calculation means 30 started from ST32. Thereafter, the controller device 20 reads the rotational speed data from the memory 13 again (ST32), and repeats the steps ST33 to ST36 and ST37 to ST41 again.

  On the other hand, when it is determined that there is no further rotational speed data in memory 13 (No in ST37), the process of cumulative data creating means 31 is terminated.

  As described above, the cumulative data creating means 31 creates cumulative data via the cumulative time calculating means 30, and as a result, the cumulative data recording area includes a plurality of criteria for each sewing manufacturer or each work process. Cumulative data Ds (FIG. 6) in which the rotation speed is associated with the calculated cumulative time is created.

  For example, when accumulating the driving time for each rotation speed based on each data stored in the memory 13 of the sewing machine control device 11 shown in FIG. 6, the accumulated time calculating means 30 receives the thread trimming command indicated by the arrow S. First, the work data and work process data input first after the previous thread trimming are read (ST30), and a cumulative data recording area D for the read work data and work process data is created (ST31). The rotational speed 112 rpm stored next to the sewing machine start command is read in the memory 13 of the sewing machine control device 11 shown in FIG. 6 (ST32), and whether or not the read rotational speed data is larger than the minimum reference rotational speed 100 rpm. Compare (ST33). Then, the accumulated time calculation means 30 determines that the rotation speed is greater than 100 rpm (Yes in ST33), and adds 100 msec, which is the reference unit time, to the time accumulation data corresponding to the reference rotation speed 100 rpm (ST34).

  Subsequently, the accumulated time calculation means 30 determines that there is a reference speed that is next higher than the minimum reference speed 100 rpm (Yes in ST35), and the first read speed 112rpm is the minimum reference speed 100rpm. As a result of comparing whether or not it is greater than the next highest reference rotational speed of 500 rpm, it is determined that it is lower than 500 rpm (No in ST36), the reference unit time is not added to the time accumulated data corresponding to 500 rpm, and then accumulated data is created. The means 31 determines whether or not the rotational speed data further stored in the memory 13 exists (ST37).

  Then, the accumulated data creation means 31 determines that the next rotation speed data exists because there is further rotation speed data after the rotation speed data of the rotation speed 112 rpm in the memory 13 (Yes in ST37). Further, the cumulative data creating means 31 determines that the worker or the work process has not been changed since there is no work data and work process data after the rotation speed data at the rotation speed of 112 rpm (No in ST38). The accumulated time calculation means 30 reads the rotation speed 1523 rpm, which is the next rotation speed data, from the memory 13 (ST32).

  Subsequently, the accumulated time calculation means 30 determines that the read rotation speed data is larger than the rotation speed of 100 rpm (Yes in ST33), and adds the reference unit time of 100 msec to the time accumulation data corresponding to the rotation speed of 100 rpm at the reference rotation speed. Add (ST34). As a result, the accumulated time data corresponding to the reference rotation speed of 100 rpm in the accumulated data recording area is added to the reference unit time at the rotation speed of 112 rpm read in advance to be 200 msec. In this way, the accumulated time calculation means 30 accumulates the drive time for each reference rotation speed.

  Further, when the accumulated time calculation means 30 determines that the read rotation speed 1523 rpm is higher than the reference rotation speed 500 rpm which is the next higher than the previous 100 rpm (Yes in ST36), the accumulated time corresponding to the rotation speed 500 rpm at the reference rotation speed. A reference unit time of 100 msec is added to the data (ST34), and it is further determined whether or not there is a next reference rotation speed (ST35). The accumulated time calculation means 30 repeats each of the steps ST35 to ST36 up to the reference rotational speed of 1500 rpm, and then determines whether or not the read rotational speed is higher than the rotational speed of 2000 rpm. Thereafter, the cumulative data creating means 31 determines whether or not the rotational speed data further stored in the memory 13 exists (ST37). In the figure showing the memory of the sewing machine control device in FIG. 6, the rotational speed data is recorded even after the thread trimming command indicated by the arrow S, but the data after the arrow S is the thread trimming command indicated by the arrow S. Is the rotational speed data acquired after the processing of the cumulative time calculation means 30 executed at the time of loading, and for these rotational speed data, the cumulative time is calculated and the cumulative data is created every time the thread trimming command is acquired. It has been broken.

  Next, the cumulative data display means 41 of the controller device 20 will be described. As shown in FIG. 7, the cumulative data display means 41 of the controller device 20 is also described as a cumulative time versus reference rotational speed (cumulative time versus rotational speed) by the cumulative data display means 41 when a predetermined function button 23 is operated by an operator. ) Is displayed (Yes in ST51), a graph of cumulative time versus rotational speed based on the cumulative data of the worker who is currently working and the work process is generated and displayed on the display unit 21 (ST52). ).

  Subsequently, the cumulative data display means 41 determines whether or not there is an instruction to change the worker and the work process by operating the predetermined operation button 22 (ST53), and when an instruction to change the worker and the work process is given (in ST53) Yes), the corresponding accumulated data is read from the accumulated data storage area of the corresponding worker and work process (ST54).

Further, the cumulative data display means 41 terminates the graph display by the operation of the predetermined operation button 22 when there is no instruction to change the worker and the work process, or after reading the cumulative data of the changed worker and the work process. The presence / absence of an instruction is determined (ST55), and if there is no end instruction (No in ST55), a graph of accumulated time versus rotational speed based on accumulated data corresponding to the changed worker and work process is generated and displayed on the display unit 21 Displayed (ST52). On the other hand, if there is an end instruction (Yes in ST55), the process of the cumulative data display means 41 is ended.
FIG. 8 shows a graph of cumulative time versus rotational speed generated and displayed by the cumulative data display means 41 in this embodiment.

  Next, the operation of this embodiment will be described.

  According to the present embodiment, the operating device 20 measures the rotational speed of the main spindle of the sewing machine by periodic interruption processing by the rotational speed measuring means 29, records rotational speed data in the rotational speed measuring means 29, and this rotational speed. Based on the data, the accumulated time calculation means 30 accumulates the times exceeding each reference rotation speed for each of the plurality of reference rotation speeds, calculates the accumulated time for each reference rotation speed, and the accumulated data creation means 31 calculates a plurality of times. Cumulative data in which the reference rotational speed is associated with the calculated cumulative time can be created, and the cumulative data display means 41 can generate a graph of cumulative time versus rotational speed. Thereby, the operator of the sewing work automatically obtains a graph of accumulated time versus rotational speed by operating a predetermined function button 23 in the operating device 20 of the sewing machine 1, and this accumulated time versus rotational speed graph. Can be used to grasp the work pattern.

  Therefore, it is possible to easily grasp the work pattern unique to each worker, thereby analyzing the work pattern of each worker and finding a point of focus for improving the sewing work. As a result, the efficiency of the operator's sewing work can be improved.

  In addition, this invention is not limited to the said embodiment, A various change is possible as needed.

  For example, in the above embodiment, the measured rotation speed is accumulated for the accumulated time calculation means exceeding the respective reference rotation speeds, but the measured rotation speed is accumulated for each reference rotation speed or more. You may do it.

  In the above embodiment, the cumulative data display means 41 creates and displays a graph of cumulative time versus rotational speed, but displays a table of cumulative time with respect to the reference rotational speed indicated by Ds in FIG. 6 as it is. Anyway.

Schematic front view showing a sewing machine in which a sewing machine recording device according to the present invention is used. The block diagram which shows the structure of the sewing recording device of the sewing machine of FIG. The flowchart which shows each process of the drive of the sewing machine by the sewing recording device of the sewing machine of FIG. The flowchart which shows each process of the periodic interruption process for monitoring the rotation of the sewing machine main spindle by the sewing recording device of the sewing machine of FIG. The flowchart which shows each process of the accumulated time calculation means of the sewing recording device of the sewing machine of FIG. FIG. 5 is an explanatory diagram when the accumulated time calculating means in FIG. 5 calculates the accumulated time and the accumulated data creating means creates the accumulated data. 1 is a flowchart showing a process in which the accumulated data display means of the sewing machine recording apparatus of FIG. 1 displays a graph of accumulated time versus rotational speed based on the accumulated data shown in FIG. Graph of cumulative time versus rotational speed displayed by cumulative data display means of sewing machine sewing recording apparatus of FIG. Schematic showing an example of a graph representing a transition of the rotational speed of the main spindle of the sewing machine displayed on the operation panel in the conventional sewing machine recording device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sewing machine 2 Sewing recording device 3 Needle bar 5 Needle 6 Sewing spindle 7 Spindle motor 11 Sewing controller 12 CPU
13 Memory 19 Timer 20 Operating Device 21 Display Unit 22 Operation Button 23 Function Button 25 CPU
26 Memory 29 Rotational Speed Measuring Unit 30 Cumulative Time Calculation Unit 31 Cumulative Data Creation Unit 41 Cumulative Data Display Unit

Claims (3)

Rotational speed measuring means for measuring the rotational speed of the main spindle of the sewing machine;
Accumulated time calculation means for accumulating the time when the measured rotation speed exceeds each reference rotation speed for each of a plurality of preset reference rotation speeds, and calculating a total time for each reference rotation speed; ,
A cumulative data creating means for creating cumulative data in which the plurality of reference rotational speeds correspond to the calculated cumulative time;
A sewing-recording apparatus for a sewing machine, comprising: cumulative data display means for displaying the cumulative data. Provided with worker data input means for inputting worker data for specifying a sewing machine manufacturer,
2. The sewing machine recording apparatus according to claim 1, wherein the accumulated data creating means creates the accumulated data for each sewing manufacturer based on the inputted worker data. 3. The sewing machine sewing recording apparatus according to claim 1, further comprising output means for outputting the created accumulated data to the outside.

Images