JP2006263268A - Supply time-alarming device of sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a supply time-alarming device, with which time for supplying lubricant to a sliding part of a sewing machine is calculated according to the practical using condition of the sewing machine with sufficient accuracy and the lubricant can be suitably manually supplied at suitable time. <P>SOLUTION: Standard replenishment information that relates standard use condition of an electronic sewing machine and standard replenishment time AST for supplying a sliding section when the electric sawing machine is used under the standard use condition is memorized beforehand, when actual use condition of the electronic sewing machine is detected and read (S17) every predetermined timing of every other hour (S15:Yes), correction replenishment time HCO to standard replenishment time AST is calculated by operations according to degree of actual use condition to standard use condition(S20, S21). Then, an alarm is given to prompt the replenishment (S23) every time when sewing total time of performed sewing with the electronic sewing machine reaches correction replenishment time HCO (S22:Yes). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sewing machine replenishment time notification device, and more particularly to a device for notifying an operator of a time when grease or lubricating oil is replenished to a sliding portion of a sewing machine.

  Conventionally, in general, in a needle bar up / down drive mechanism and needle swing mechanism of a sewing machine, and a shuttle drive mechanism for driving a rotary hook, a reciprocating sliding shaft and a rotationally driven rotary shaft are supported by a bearing metal. In order to allow the sliding shaft and rotating shaft to move or rotate smoothly, every time the sewing time reaches a predetermined time, or periodically, between the sliding shaft or rotating shaft and the bearing metal. By replenishing a lubricant such as grease or lubricating oil, the sliding shaft and the rotating shaft are prevented from being seized.

For example, the grease supply device for a sewing machine disclosed in Patent Document 1 detects the number of rotations of the upper shaft while sewing is being performed, and the number of rotations of the upper shaft reaches a predetermined number of rotations (for example, 1 million times). When it reaches, the solenoid is driven by the control device so that the grease in the grease cylinder is pushed out and automatically supplied to the sliding portion via the pipe.
JP 2002-35463 A (pages 5 to 6, FIG. 1)

  As described above, in the grease supply device for a sewing machine described in Patent Document 1, only the rotational speed of the upper shaft during sewing is detected, and the grease in the grease cylinder is automatically removed every time the rotational speed reaches a predetermined number. However, as the operating conditions of the sewing machine, in addition to the rotational speed of the upper shaft, the environmental temperature, the sewing speed, and the time ratio required for sewing, that is, Since the sewing operation rate is not referred to, the amount of grease consumed cannot be accurately grasped.

  Therefore, depending on the sliding part to be refilled, the amount of grease consumed is small and a large amount of grease remains in the grease reservoir. There arises a problem that excess grease is dropped on the fabric used for sewing and becomes dirty. On the other hand, when the amount of grease consumed is large, there is a case where the sewing operation is carried out without lubrication until the next replenishment time even though there is no grease in the grease reservoir. There is a problem of doing.

  The replenishment time notification device for a sewing machine according to claim 1 is a replenishment time notification device for notifying a replenishment time for replenishing a lubricant to a sliding portion of the sewing machine. A replenishment information storage means for storing standard replenishment information corresponding to a standard replenishment time to replenish the sliding part in advance, a use condition detection means for detecting the actual use condition of the sewing machine, and a use for the standard use condition According to the degree of actual use conditions detected by the condition detection means, a supply correction means for calculating a correction supply time with respect to the standard supply time by calculation, and a total sewing time obtained by accumulating the sewing time when the sewing is executed by the sewing machine are detected. An accumulated time detecting means; and a replenishment notifying means for urging replenishment every time the accumulated sewing time detected by the accumulated time detecting means reaches the corrected replenishment time determined by the replenishment correcting means. Those were example.

  Every time sewing is executed by the sewing machine, the sewing time is accumulated by the accumulated time detecting means. On the other hand, since the actual use condition of the sewing machine is detected by the use condition detection means, the supply correction means corrects the standard supply timing according to the degree of the actual use condition detected by the use condition detection means for the standard use condition. When the replenishment time is calculated and the total sewing time detected by the total time detection means has reached the corrected replenishment time determined by the replenishment correction means, the replenishment notification means notifies the user of the replenishment time. At this time, the operator replenishes the lubricant manually.

  According to a second aspect of the present invention, there is provided the sewing machine replenishment time notification device according to the first aspect of the invention, wherein the use condition of the sewing machine includes a maximum sewing speed during sewing, and the use condition detecting means can detect the maximum sewing speed during sewing. It is a thing.

  According to a third aspect of the present invention, there is provided the sewing machine replenishment time notification device according to the second aspect of the invention, wherein the use condition of the sewing machine includes the environmental temperature, and the use condition detecting means enables detection of the environmental temperature.

  According to a fourth aspect of the present invention, there is provided the sewing machine replenishment time notification device according to the third aspect of the invention, wherein the sewing machine use condition includes a sewing operation rate which is a ratio of a total sewing time to a sewing machine power ON period, and the use condition detecting means is a sewing machine. This makes it possible to detect the operating rate.

  According to a fifth aspect of the present invention, there is provided the sewing machine replenishment time notification device according to the fourth aspect of the invention, wherein the use condition of the sewing machine includes the number of activations by the start / stop switch, and the use condition detecting means enables detection of the number of activations. .

  According to a sixth aspect of the present invention, there is provided the sewing machine replenishment time notification device according to any one of the first to fifth aspects, wherein the replenishment correcting means performs a correction calculation every time a predetermined time elapses in a power ON period of the sewing machine. Is what you do.

  According to a seventh aspect of the present invention, there is provided the sewing machine replenishment time notification device according to any one of the first to sixth aspects, wherein the sliding portion of the sewing machine is a sliding object to be replenished by any one of a needle bar up / down mechanism, a needle swinging mechanism, and a shuttle mechanism. The replenishment information storage means stores standard replenishment information for each replenishment target sliding part.

  According to the first aspect of the present invention, in the replenishment time notification device for notifying the replenishment time for replenishing the lubricant to the sliding portion of the sewing machine, the replenishment information storage means, the use condition detection means, the replenishment correction means, and the accumulated time A detection means and a replenishment notification means are provided, and a correction replenishment time with respect to the standard replenishment time is determined according to the degree of actual use conditions with respect to the standard use conditions, and replenishment is performed when the total sewing time reaches the correction replenishment time. Since the notification is made so as to prompt the user, the lubricant replenishment timing at the sliding portion is accurately obtained according to the use conditions, and the lubricant can be replenished to the sliding portion by an appropriate manual operation at an appropriate timing.

  Therefore, it is possible not only to reliably prevent the sliding shaft and the rotating shaft from being damaged, but also to reliably prevent the fabric used for sewing from being soiled by excess grease. In addition, since the lubricant is appropriately replenished by manual operation, the waste of the lubricant can be eliminated, and the sewing machine can be manufactured at a lower cost than the case where an automatic replenishing device is provided.

  According to the invention of claim 2, since the use condition of the sewing machine includes the maximum sewing speed during sewing, and the use condition detecting means enables detection of the maximum sewing speed during sewing, the maximum sewing speed during sewing is obtained. By including it in the use conditions as a parameter, the correction replenishment time can be accurately obtained in association with the actual consumption of the lubricant based on the maximum sewing speed. Other effects similar to those of the first aspect are obtained.

  According to the invention of claim 3, since the use condition of the sewing machine includes the environmental temperature and the use condition detecting means enables the detection of the environmental temperature, by including the environmental temperature during sewing as a parameter in the use condition, Based on the environmental temperature, the correction replenishment time can be accurately obtained in association with the actual consumption amount of the lubricant. Other effects similar to those of the second aspect are achieved.

  According to the invention of claim 4, the use condition of the sewing machine includes a sewing operation rate that is a ratio of the total sewing time to the power ON period of the sewing machine, and the use condition detecting means enables the detection of the sewing operation rate. By including the sewing operation rate as a parameter in the use condition, the correction replenishment time can be accurately obtained in association with the actual consumption of the lubricant based on the sewing operation rate. Other effects similar to those of the third aspect are achieved.

  According to the invention of claim 5, the use condition of the sewing machine includes the number of activations by the start / stop switch, and the use condition detecting means enables detection of the number of activations. By including the correction replenishment time, the correction replenishment timing can be accurately obtained in association with the actual consumption amount of the lubricant based on the number of activations. Other effects similar to those of the fourth aspect are achieved.

  According to the invention of claim 6, since the replenishment correction means performs a correction calculation every time the power ON period of the sewing machine elapses or every predetermined period, the corrected replenishment time according to the use conditions with respect to the standard replenishment time. Can be periodically and repeatedly corrected. Other effects similar to those of any one of claims 1 to 5 can be achieved.

  According to the invention of claim 7, the sliding portion of the sewing machine is a replenishment target sliding portion of any of the needle bar up-and-down mechanism, the needle swinging mechanism, and the shuttle mechanism, and the replenishment information storage means is provided for each replenishment target sliding portion. Since the standard replenishment information is stored, the corrected replenishment timing for any replenishment target sliding portion in the sewing machine can be obtained by the correction calculation. Other effects similar to those of any one of claims 1 to 6 can be achieved.

  The sewing machine replenishment time notification device according to the present embodiment accurately obtains the correction replenishment time with respect to the standard replenishment time according to the use conditions having the maximum sewing speed, the environmental temperature, the sewing operation rate, and the number of activations as parameters. An alarm is made every time the supply time is reached.

  As shown in FIG. 1, the electronic sewing machine 1 is not shown, but is erected on a bed portion 2 having a thread catcher such as a rotary hook driven by a lower shaft and a right end portion of the bed portion 2. And the arm portion 4 extending leftward from the upper end of the pedestal 3. A main shaft (not shown) arranged in the left-right direction in the arm portion 2 is rotatably supported by a sewing machine frame, and a head 5 is connected to the main shaft and a needle bar 6 is connected to the main shaft (not shown). A needle bar up-and-down moving mechanism for driving up and down, a needle swinging mechanism for swinging the needle bar 6 left and right by the needle swinging drive mechanism, a balance driving mechanism for driving the balance 7 and the like are provided.

  Therefore, as shown in FIG. 2, the head 5 is supplied with the first grease replenishment portion for the pivot shaft of the balance support indicated by the arrow G1 and the second grease replenishment for the guide vertical movement member of the crank rod 8 indicated by the arrow G2. And a fourth grease replenishment portion for the vertical movement bearing of the metal below the needle bar indicated by an arrow G3 and a fourth grease replenishment portion for the vertical movement bearing of the metal below the presser bar indicated by an arrow G4. An operator manually supplies grease (this corresponds to a lubricant) to each of the supply parts G1 to G4 using a grease tube.

  Further, as shown in FIG. 3, the bed portion 2 includes a fifth grease replenishment portion for the bearing portion of the feed shaft indicated by an arrow G5, and a sixth grease replenishment portion for the horizontal swing portion of the feed base indicated by an arrow G6. , A seventh grease replenishment portion is provided for each of the vertical swinging portions of the feed base indicated by the arrow G7, and each of the plurality of grease replenishment portions G5 to G7 is manually replenished with a grease tube by an operator. It is supposed to be.

Next, the control system of the electronic sewing machine 1 will be described based on the block diagram of FIG.
The control device 10 includes an input interface 11, a microcomputer including a CPU 12, a ROM 13, and a RAM 14 that are electrically rewritable and a non-volatile flash memory 15, an output interface 16, and a data bus that interconnects them. A bus 17 and drive circuits 18 to 19 are included.

  The input interface 11 includes a start / stop switch 21, an operation panel 22 having a touch panel on the front surface, a rotational position detection sensor 23 for detecting the rotational position of the main shaft, and an indoor environmental temperature in which the electronic sewing machine 1 is installed. A digital environmental thermometer 24 to be detected is electrically connected. The operation panel 22 is provided with a display unit 22a composed of a liquid crystal display, keys 22b having speed setting keys and the like, display lamps 22c, and the like.

  The output interface 16 is used to drive a drive circuit 18 for a sewing machine motor 25 that rotationally drives the spindle, a drive circuit 19 for sounding a buzzer 26, and a display unit 22a (liquid crystal display) included in the operation panel 22. The display controller 20 and the like are connected.

  The ROM 13 includes a sewing control program including pattern selection control for selecting a practical pattern and various display controls, as well as a control program for replenishment time notification control, which will be described later. Stored in advance. The ROM 13 is further provided with a supply information memory 13a (which corresponds to supply information storage means) for storing a supply information table.

  The replenishment information memory 13a stores in advance a replenishment information table in which standard use conditions and standard replenishment times AST are associated with each of the plurality of grease replenishing units G1 to G7 described above. For example, the first grease supply unit G1 shown in FIG. 2 will be described.

  As shown in Fig.5, it consists of standard maximum speed VST "4000 revolutions / minute", standard environment temperature TST "20 ° C", standard operating rate WST "20%", and standard startup number NST "140 times". A replenishment information table that associates standard use conditions having four parameters with standard replenishment timing AST “3000 hours” is stored. However, the standard numerical value described here is an explanatory numerical value described as, for example.

  Here, the standard maximum speed VST “4000 revolutions / minute” is a general maximum speed V used when the operator operates the electronic sewing machine 1 during normal sewing. The faster the maximum speed V is, the more grease is consumed. While the amount increases, the slower the maximum speed, the less grease is consumed. The standard environmental temperature TST “20 ° C.” is a general indoor temperature at the installation location where the electronic sewing machine 1 is installed. The higher the environmental temperature T, the lower the viscosity of the grease, and the amount of grease consumed. On the other hand, the lower the environmental temperature T, the higher the viscosity of the grease and the less the amount of grease consumed.

  The standard operation rate WST “20%” is a general operation rate when the operator operates the electronic sewing machine 1 during normal sewing. The larger the operation rate W, the more grease is consumed. On the other hand, the smaller the operating rate W is, the less grease is consumed. Furthermore, the standard activation number NST “140 times” is a general activation number when the operator operates the electronic sewing machine 1 during normal sewing. The larger the activation number N, the greater the consumption of grease. On the other hand, the smaller the number of activations N is, the less grease is consumed.

  The RAM 14 includes a sewing data memory for storing pattern data read from the ROM 13 with respect to a pattern to be used for sewing, and various memories, pointers, counters, and the like for temporarily storing calculation results obtained by the CPU 12. Is provided.

  The flash memory 15 can store the detection information table shown in FIG. 6 for each of the plurality of grease replenishing units G1 to G7 described above. This detection information table will be described as shown in FIG. 6 each time the above-described four types of use conditions (actual maximum speed V, actual environmental temperature T, actual operating rate W, actual start count N) are detected. A detection information table for storing usage condition information and the number of detections in association with each other is stored.

  Since the flash memory 15 is electrically rewritable, use condition information can be added and stored as needed every time a use condition is detected by replenishment time notification control described later. Further, the flash memory 15 stores and holds the power-on count value C that counts the number of times the power switch is turned on even when the power switch is turned off. However, this power-on count value C is reset and set to “0” when shipped from the manufacturer.

  Next, a replenishment time notification control routine executed by the control device 10 will be described based on the flowchart of FIG. However, the symbol Si (i = 10, 11, 12,...) In the figure is each step. However, although not shown, the power ON timer and the operation time timer used during the control are software timers that are clocked in the control device 10.

  Further, when executing the sewing process, the operator operates a necessary key on the operation panel 22 to set the maximum sewing speed V in advance. Therefore, the control device 10 controls the rotation speed of the main shaft during sewing so that the maximum sewing speed V set on the operation panel 22 is obtained.

  When power is turned on to the electronic sewing machine 1, this control is started. First, the power ON count value C is incremented by 1 (S10), and the time counting operation of the power ON timer is started (S11). Next, S12 is repeatedly executed until the start / stop switch 21 is turned on, waiting for sewing to be started. When the start / stop switch 21 is turned on and sewing is started (S12: Yes), the number of times of activation N is incremented by 1 (S13), and the time counting operation of the operating time timer is started (S14).

  Next, when the start / stop switch 21 is turned off (S15: Yes), the clocking operation of the operating time timer is stopped (S16), and the clocking operation of the power ON timer is performed based on the clocking time of the power ON timer. If it is not the predetermined timing every other hour determined so as to read the four usage conditions after the start (S17: No), S12 to S17 are repeatedly executed. Therefore, every time the sewing process is executed until the predetermined timing is reached every other hour, the time measured by the operation time timer is accumulated in order.

  By the way, when the predetermined timing is reached every other hour based on the time measured by the power ON timer (S17: Yes), the ratio of the operating time to the time measured by the power ON timer, that is, the operating rate W is calculated (S18). ). Next, the preset maximum speed V, the environmental temperature T from the environmental thermometer 24, and the number of activations N are read (S19). Based on these read numerical values, “actual maximum speed V” is obtained. “Actual environmental temperature T”, “actual operating rate W”, and “actual activation number N” are stored in the detection information table of the flash memory 15 in association with the number of detections (S20).

  Next, based on the power ON frequency count value C, when the power ON frequency count value C has not reached the preset predetermined frequency D (S21: No), S12 to S21 are repeatedly executed. Here, in the case where the power switch is turned on at the start of work in the morning, at the start of work in the afternoon, and after the break in the evening, a numerical value “15” corresponding to one week (5 working days). ”Is stored, the detection information table of the flash memory 15 stores a large number of practical use condition information detected every other hour over a week.

  By the way, when the power-on count value C reaches the predetermined number D (S21: Yes), an average value of a large number of practical use condition information stored in the detection information table of the flash memory 15 is obtained by calculation. (S22).

  That is, an average maximum speed VAV obtained by dividing the total of all actual maximum speeds V by the number of detections M is obtained, and an average environment temperature TAV obtained by dividing the total of all actual environment temperatures T by the number of detections M is obtained. An average operating rate WAV obtained by dividing the total of all actual operating rates W by the number of detections M is obtained, and an average starting number NAV obtained by dividing the total of all actual starting times N by the number of detections M is obtained.

  Next, based on the average values of the use conditions thus obtained, the corrected replenishment timing HCO for the standard replenishment timing AST is obtained from the arithmetic expression shown in the figure according to the degree of the actual use conditions for the standard replenishment timing AST. (S23).

  That is, when the average maximum speed VAV is greater than the standard maximum speed VST, when the average environment temperature TAV is greater than the standard environment temperature TST, when the average operation rate WAV is greater than the standard operation rate WST, When it is greater than the number of activations NAV, the corrected replenishment time HCO is shorter than the standard replenishment time AST.

  On the other hand, when the average maximum speed VAV is smaller than the standard maximum speed VST, when the average environment temperature TAV is smaller than the standard environment temperature TST, when the average operation rate WAV is smaller than the standard operation rate WST, the standard startup number NST is average When it is smaller than the number of activations NAV, the corrected replenishment time HCO becomes longer than the standard replenishment time AST.

  Next, when the corrected replenishment timing HCO obtained in this way has not reached the sewing accumulated time based on the time measured by the operating time timer (S24: No), S12 to S24 are repeatedly executed. However, if the accumulated sewing time has reached the correction replenishment timing HCO or more (S24: Yes), alarm processing is executed (S25), and the power ON timer, the operation time timer, and the power ON count count value C are displayed. Each is cleared (S26), and S10 and subsequent steps are repeatedly executed.

  By the way, in the alarm process, a warning message “please replenish grease” may be displayed on the display unit 22a of the operation panel 22, or the buzzer 26 may be sounded like a siren. In addition, when a speaker is provided, a voice message indicating that the speaker is replenished may be output.

  Here, the operation panel 22, the digital environmental thermometer 24, and the replenishment time notification control, particularly S17, etc. constitute use condition detection means, and the replenishment time notification control, particularly S22, S23, etc., constitute replenishment correction means, and replenishment. Accumulated time detection means is configured from the timing notification control, particularly S24, and the replenishment notification means is configured from the supply timing notification control, particularly S25.

  Next, the operation of replenishment time notification will be described. Here, the grease supply in the 1st grease supply part G1 is demonstrated.

  In the replenishment information table relating to the first grease replenishing part G1, standard use conditions and standard replenishment timing AST are preset as shown in FIG. Therefore, as shown in FIG. 6, for example, on October 20, the working time of the electronic sewing machine 1 is 8 hours, and “actual maximum speed V”, “actual environmental temperature T” and “ The “actual operation rate W” and the “actual activation count N” are the contents shown in FIG.

  In this case, the average maximum speed VAV for 8 hours (number of detections 1 to 8) is “3075”, the average environmental temperature TAV is “19.7”, the average operating rate WAV is “42.8”, and the average number of startups Since NAV is “119.5”, the corrected supply time HCO for the standard supply time AST “3000 hours” is about “1575 hours”.

  Therefore, when the corrected replenishment time HCO corrected in view of the actual use conditions has elapsed, that is, when the actual use conditions are stricter than the standard use conditions, the preset standard replenishment time AST is set. Since replenishment is urged by an alarm at an early time, it is possible to manually replenish grease appropriately to each of the grease replenishment units G1 to G7 to be replenished.

  On the other hand, if the actual use conditions are not stricter than the standard use conditions, the corrected replenishment time HCO is longer than the standard replenishment time AST and replenishment is performed by an alarm at a time later than the preset standard replenishment time AST. Prompted. Also in this case, it is possible to manually replenish grease appropriately to the respective grease replenishing units G1 to G7 to be replenished.

  As described above, the corrected replenishment timing HCO with respect to the standard replenishment timing AST is determined according to the actual usage conditions with respect to the standard usage conditions having the four parameters of the maximum speed V, the environmental temperature T, the operating rate W, and the number N of activations. When the accumulated sewing time reaches the corrected replenishment time HCO, an alarm notifies you to replenish, so the grease replenishment time at the sliding part can be obtained with high accuracy according to the actual usage conditions, and sliding The lubricant can be replenished manually at an appropriate time.

  As a result, not only can the sliding due to the seizure of the sliding shaft and rotating shaft in the arm portion 4 and the bed portion 2 be prevented, but also the fabric used for sewing can be reliably prevented from being soiled by excess grease. Can do. In addition, since the grease is appropriately replenished by manual operation, the waste of grease can be eliminated and the electronic sewing machine 1 can be manufactured at a lower cost compared to the case where an automatic replenishing device is provided.

  Further, the predetermined number D of the power ON number count value C is “15”, and the correction replenishment timing HCO is obtained by calculation every predetermined period of, for example, one week, so that it corresponds to the actual use condition with respect to the standard replenishment timing AST. The correction replenishment time HCO can be periodically corrected and calculated.

  The sliding portion of the electronic sewing machine 1 is a replenishment target sliding portion of any of the needle bar up / down mechanism, the needle swinging mechanism, and the shuttle mechanism, and the standard replenishment information for each of the plurality of replenishment target sliding portions is stored in the flash memory 15. Therefore, the corrected replenishment timing HCO for any of the replenishment target sliding portions in the electronic sewing machine 1 can be obtained by the correction calculation.

  Next, a modified form of the embodiment will be described.

  1) Instead of the number of activations N described above, an average value of operating times for each sewing process may be obtained and this average operating time may be used. In other words, when the average operating time is long, the electronic sewing machine 1 is continuously operated for a long time, so that the consumption of grease is increased compared with the case where the average operating time is short. can do.

  2] Instead of the set maximum speed V, the maximum rotational speed V of the main spindle is obtained using a detection signal (pulse signal) from the rotational position detection sensor 23 for detecting the rotational position of the main spindle, and this maximum rotational speed V is used. It may be.

  3) In the replenishment time notification control, the corrected replenishment time HCO corresponding to the use condition of the electronic sewing machine 1 is set to, for example, a predetermined number D of the power ON number count value C “15” and every predetermined period of one week. However, other predetermined periods such as every two weeks or every one month may be used. Alternatively, it may be executed every time the power ON period elapses a predetermined time.

  4) Construct a 24-hour timer (so-called perennial calendar) that counts time regardless of whether the power switch is on or off, delete S10 of the replenishment timing notification control, and in S21, based on the 24-hour timer You may comprise so that progress of a predetermined period may be determined.

  5] As a use condition of the electronic sewing machine 1, as shown in FIG. 8, the standard use condition includes only the standard maximum speed VST, and a replenishment information table in which the standard use condition and the standard replenishment time AST are associated with each other is stored. You may do it. In this case, since the use conditions of the electronic sewing machine 1 include the maximum sewing speed V during sewing, the correction replenishment timing is based on the maximum sewing speed V by including the maximum sewing speed V during sewing as a parameter in the use conditions. It can be accurately obtained in relation to the actual consumption of grease.

  6] As shown in FIG. 9, the usage conditions of the electronic sewing machine 1 include the standard maximum operating speed VST and the standard environmental temperature TST as the standard usage conditions, and the standard usage conditions are associated with the standard replenishment timing AST. A replenishment information table may be stored. In this case, the use conditions of the electronic sewing machine 1 include the maximum speed V and the environmental temperature T. Therefore, by additionally including the environmental temperature T during sewing as a parameter in the use conditions, the correction replenishment timing is set to the maximum speed V and the environmental temperature. Based on the temperature T, it can be accurately obtained in association with the actual consumption of grease.

  7] As shown in FIG. 10, the usage conditions of the electronic sewing machine 1 include the standard environment temperature TST and the standard operating rate WST in addition to the standard maximum speed VST as standard usage conditions. You may make it memorize | store the supply information table which matched the time AST. In this case, the use conditions of the electronic sewing machine 1 include the maximum speed V, the environmental temperature T, and the operating rate W. Therefore, in addition to the maximum speed V, the operating temperature T and the operating rate W during sewing should be included in the operating conditions as parameters. Thus, the corrected replenishment timing can be accurately obtained in association with the actual consumption of grease based on the maximum speed V, the environmental temperature T, and the operating rate W.

  8) In the above-described embodiment, the case where grease is supplied to the plurality of grease replenishing units G1 to G7 has been described. However, in the case of a sewing machine configured to replenish lubricating oil, the replenishment timing of the lubricating oil is set. The present invention can also be applied to notification.

  9] The present invention is not limited to the above-described embodiments, and those skilled in the art can implement various modifications to the above embodiments without departing from the spirit of the present invention. The present invention includes those modifications.

It is a front view of the electronic sewing machine which concerns on the Example of this invention. It is a perspective view of the head which is the front-end | tip part of an arm part. It is a perspective view of a bed part. It is a block diagram of the control system of an electronic sewing machine. It is a chart which shows the data set to the replenishment information table. It is a chart which shows the data set to the detection information table. It is a flowchart of replenishment time alerting | reporting control. FIG. 6 is a diagram corresponding to FIG. 5 according to a modified embodiment. FIG. 6 is a diagram corresponding to FIG. 5 according to a modified embodiment. FIG. 6 is a diagram corresponding to FIG. 5 according to a modified embodiment.

Explanation of symbols

1 Electronic sewing machine 21 Start / stop switch G1 Grease supply unit G2 Grease supply unit G3 Grease supply unit G4 Grease supply unit G5 Grease supply unit G6 Grease supply unit G7 Grease supply unit

Claims (7)

In the replenishment time notification device that notifies the replenishment time of replenishing the lubricant to the sliding part of the sewing machine,
Replenishment information storage means for storing in advance standard replenishment information in which the standard replenishment information corresponding to the standard replenishment time for replenishing the sliding portion when the sewing machine is used under the standard use condition and the standard use condition of the sewing machine;
Use condition detection means for detecting the actual use condition of the sewing machine;
Replenishment correction means for calculating a correction replenishment time for the standard replenishment time according to the degree of actual use conditions detected by the use condition detection means for the standard use conditions;
An accumulated time detecting means for detecting an accumulated sewing time obtained by accumulating the sewing time when the sewing is performed by the sewing machine;
Replenishment notifying means for urging replenishment every time the accumulated sewing time detected by the accumulated time detecting means reaches the corrected replenishment time determined by the replenishment correcting means;
A sewing machine replenishment time notification device.   The sewing machine replenishment time notification device according to claim 1, wherein the use condition of the sewing machine includes a maximum sewing speed during sewing, and the use condition detecting means can detect the maximum sewing speed during sewing.   3. The sewing machine replenishment time notification device according to claim 2, wherein the use condition of the sewing machine includes an environmental temperature, and the use condition detecting means can detect the environmental temperature.   The use condition of the sewing machine includes a sewing operation rate that is a ratio of a total sewing time with respect to a power ON period of the sewing machine, and the use condition detecting unit can detect the sewing operation rate. The sewing machine replenishment time notification device.   The sewing machine replenishment time notification device according to claim 4, wherein the use condition of the sewing machine includes the number of activations by a start / stop switch, and the use condition detecting means can detect the number of activations.   The sewing machine replenishment time notification device according to any one of claims 1 to 5, wherein the replenishment correction means performs a correction calculation every time a predetermined period of time elapses in a power ON period of the sewing machine. The sliding portion of the sewing machine is a replenishment target sliding portion of any of a needle bar up / down mechanism, a needle swinging mechanism, and a shuttle mechanism, and the replenishment information storage means stores the standard replenishment information for each replenishment target sliding portion. The sewing machine replenishment time notification device according to any one of claims 1 to 6.

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