CN1699663B - Sewing machines - Google Patents
Sewing machines Download PDFInfo
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- CN1699663B CN1699663B CN 200510081720 CN200510081720A CN1699663B CN 1699663 B CN1699663 B CN 1699663B CN 200510081720 CN200510081720 CN 200510081720 CN 200510081720 A CN200510081720 A CN 200510081720A CN 1699663 B CN1699663 B CN 1699663B
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Abstract
The invention provides a sewing machine. A sewing machine main shaft (8) is arranged in an arm portion (5) and driven by a sewing machine motor, an electric generator (15) composed of a PM type stepping motor is arranged on the main shaft in an external embedded mode, a DC supply voltage control circuit is provided for converting electric power into assigned voltage (such as 5V), through working of the power supply, the accumulated running time T of the sewing machine 1 is calculated and a maintaining CPU (26) for prompting maintenance time (packing lubrication) is provided.
Description
Technical field
The present invention relates to by motor of sewing machine and rotate the Sewing machines that drives rotating shaft or back and forth drive driving shaft.
Background technology
In the past, being provided with by shank, colluding in the Sewing machines of making mechanism that line constitutes with shuttle etc., used commercial ac power source to make the driving power of the motor of sewing machine of mechanism as driving.In addition, in being provided with the Electronic Control Sewing machines of the control device that comprises CPU, in order to obtain to drive the power supply of above-mentioned control device, be provided with the supply unit that above-mentioned source power supply (for example alternating current of 100V) is converted to the direct current (for example 5V direct current) of low-voltage.
But the source power supply of the country that has exists multiple voltage (for example 100V, 200V etc.) or mode (single-phase, three equate), and each national kind also is not quite similar.Therefore, be applicable to described multiple source power supply in order to make control device, must with every kind of supply unit that source power supply is corresponding.Preparing multiple supply unit in advance or changing these power supplys is disadvantageous aspect cost.
Therefore, in the last few years, the auxiliary Sewing machines that uses other power supply in the control of Sewing machines had been proposed outside the various source power supplies that drive usefulness at above-mentioned motor of sewing machine.
For example, in No. 2941291 communiques of Japan Patent, put down in writing many power drives Sewing machines that solar cell is set on sewing machine frame.In this Sewing machines, to save in the battery of Sewing machines inside by the electric power that solar cell provides, on the one hand, motor of sewing machine drives by source power supply, on the other hand, various stepper motors or styles store device or pattern display unit etc. have adopted from the structure of the low voltage power of above-mentioned battery supply.
But the problem that this Sewing machines with solar cell exists is: when making, and the light source of essential sunlight or replacement sunlight, the position that is provided with of Sewing machines is restricted.In addition, in order to save the driving electric power that is used to drive various stepper motors, essential large-sized solar cell panel and battery are so exist the cost problem of higher.
In addition, for example, in industrial sewing machines that only carry out actual sewing etc., be not provided for the control device of Sewing machines control, for this Sewing machines, preferably to remind the time of user to each position filling butter maintenance works such as (oil supply) of drive system.In order to point out the time of this maintenance, maintenance CPU need be set, and by this CPU, accumulative total being made the accumulated running time of the time of at every turn making of operation on one side calculates, on one side with its storage, and, point out during fixed accumulated running time when reaching.
As this power supply that is used to calculate the CPU of accumulated running time, in addition, can use battery (disposable battery), but, need constantly to consume electric power in order to preserve the storage data, therefore, there is the unfavorable condition that power consumption is big and the life-span is short of battery.In addition, in order to calculate the duration of runs, rotated detection devices such as the encoder of surveying the machine spindle rotation or turn-sensitive device must be set also in addition, therefore, structure is more complicated, has increased the high price part simultaneously, thereby causes the cost rising.
Summary of the invention
The object of the present invention is to provide a kind of Sewing machines, it can drive outside the source power supply of motor of sewing machine, in the auxiliary Sewing machines that uses other power supply, with simply, mode realizes obtaining the structure of accessory power supply cheaply.
First kind of Sewing machines of the present invention is provided with the rotating shaft that is driven in rotation by motor of sewing machine, described Sewing machines is provided with the generator by the rotary electrification of above-mentioned rotating shaft, the generation power of described generator is converted to the source voltage control circuit of assigned voltage and from the electronic device of described source voltage control circuit power supply.
In the present invention, if drive rotating shaft by the motor of sewing machine rotation, then by generator for electricity generation, the electric power that is sent is converted into assigned voltage and offers electronic device by source voltage control circuit.In this case,, therefore, be different from the situation that adopts solar cell owing to adopted generator by the rotary electrification of rotating shaft, the place is set can be restricted of Sewing machines, and also volume is little and low price.In addition, no matter which kind of source power supply the buyer uses drive motor of sewing machine, can obtain to be used for the assigned voltage of drive electronics by generator and source voltage control circuit.
Therefore, as producer, needn't prepare the multiple supply unit corresponding with various source power supplies, no matter which country product sells to, also no matter condition is set how, just can solve by a kind of supply unit (generator and source voltage control circuit), and, can realize obtaining the structure of accessory power supply in mode simply and cheaply.
Above-mentioned electronic device comprises the CPU that is assemblied in the sewing machine body, and simultaneously, source voltage control circuit has the voltage stabilizing generative circuit, and it is used to produce the supply voltage of the assigned voltage that provides to above-mentioned CPU.Utilize supply voltage, can make CPU work by the assigned voltage of generator for electricity generation gained, and, can carry out various Electronic Control by CPU.
In this case, adoptable structure is: the judging unit of judging the Sewing machines running by the voltage level of generator for electricity generation electric power is set, and above-mentioned CPU receives the output of described judging unit and calculates the accumulated running time of Sewing machines.Like this, can calculate the accumulated running time of Sewing machines running, utilize described accumulated running time to obtain the maintenance management of Sewing machiness such as various maintenance phases.And, generator can be also used as the rotated detection device of rotating shaft, therefore, can simplified structure.
In addition, the Tip element of pointing out this situation when above-mentioned accumulated running time reaches setting can be set.By Tip element, can inform exactly that because accumulated running time reaches setting therefore, having arrived need be to driving each position filling lubricating oil maintenance phases such as (oil supply) of system.
At this moment, also amending unit can be set, it is used for the rotating speed according to rotating shaft, changes actually to make the time to the conversion scale that calculates as the conversion duration of runs of accumulated running time.Like this, the maintenance phase that is calculated is more accurate.
In addition, can be provided for storing the memory cell of the accumulated running time that CPU calculates and will be stored in the reset switch of the accumulated running time zero clearing in this memory cell.For example, when finishing to safeguard, by the operation reset switch, can be with the accumulated running time zero clearing of in memory cell, storing realizing initialization, thus can effectively utilize accumulated running time repeatedly.
At this moment, can be arranged on not by under the state of generator for electricity generation the battery of when the above-mentioned reset switch of operation, powering to above-mentioned CPU.Therefore, even do not passing through under the state of generator for electricity generation, the electric power that only limits to carry out reset operation and can use battery makes CPU work.Because the electric power of this battery only is used for zero clearing, therefore, the power consumption of battery is very little, thus but long term.
Second kind of Sewing machines of the present invention is provided with the rotating shaft that is driven by the motor of sewing machine rotation, this Sewing machines is provided with the generator by the rotary electrification of above-mentioned rotating shaft, and the generation power of described generator is converted to the source voltage control circuit of assigned voltage and the power supply unit that the electric power that source voltage control circuit produces is offered external electrical device.
No matter motor of sewing machine by which kind of source power supply drives, can obtain assigned voltage by the generating of generator, and provide it to external electrical device.Therefore, as producer, needn't prepare the multiple supply unit corresponding with various source power supplies.No matter which country product sells to, also no matter condition is set how, all can pass through a kind of supply unit (generator and source voltage control circuit) realization, and, can be with simply, mode realizes obtaining the structure of accessory power supply cheaply.
In this case, the structure that can adopt is: the charging part that external electrical device removably is installed is set, by the power supply terminal power supply of above-mentioned power supply unit to this charging part on sewing machine main body.Therefore, can the electronic device that could use by charging be charged.
In first or second kind of Sewing machines of the invention described above, generator can be made of the PM type stepper motor that outer embedding is installed on the rotating shaft.That PM type stepper motor has is less expensive, good endurance and the good characteristics of smoothness, so be suitable for using.
The third Sewing machines of the present invention is provided with the driving shaft that is back and forth driven by motor of sewing machine, this Sewing machines is provided with the generator of the reciprocating motion generating by driving shaft, the generation power of described generator is converted to the source voltage control circuit of assigned voltage and by the electronic device of described source voltage control circuit power supply.
If driving shaft is back and forth driven by motor of sewing machine, generator for electricity generation then, its generation power is converted into assigned voltage and offers electronic device by source voltage control circuit.No matter motor of sewing machine by which kind of source power supply drives, can obtain the assigned voltage of drive electronics by the generating of generator.Therefore, as producer, needn't prepare the multiple supply unit corresponding with various source power supplies, no matter which country product sells to,, all can realize by a kind of supply unit also no matter condition is set how, and, can be with simply, mode realizes obtaining the structure of accessory power supply cheaply.
Description of drawings
Fig. 1 is the front elevation of the Sewing machines of the present invention the 1st embodiment;
Fig. 2 is the longitudinal cross-section front elevation of the basic side part of Sewing machines arm;
Fig. 3 has shown the 4 cross streams electrical waveform that produced by generator;
Fig. 4 has shown by the DC voltage waveform of rectification;
Fig. 5 is for showing the circuit diagram of electric substrate circuit structure;
Fig. 6 is for showing the flow chart of the control step that filling lubricating oil is pointed out;
Fig. 7 has shown the present invention the 2nd embodiment, and it is equivalent to Fig. 5;
Fig. 8 has shown between the rotating speed that is stored among the EEPROM and the generating voltage and has concerned;
Fig. 9 has shown between the rotating speed that is stored among the EEPROM and the correction factor and has concerned;
Figure 10 is equivalent to Fig. 6
Figure 11 has shown the present invention the 3rd embodiment, and it is for showing the longitudinal cross-section front elevation of electric generator structure;
Figure 12 has shown the present invention the 4th embodiment, and it is equivalent to Fig. 1.
The specific embodiment
Embodiment
Below, 1 to 6 couple of the 1st embodiment of the present invention describes with reference to accompanying drawing.
Fig. 1 has shown the overall structure of the Sewing machines 1 of present embodiment.Described Sewing machines 1 is provided with horizontal base 3, the socle of holding up upward from these base 3 right-hand members 4, and the arm 5 that extends left from these socle 4 upper ends, and be positioned on the operating desk 2.
Unshowned line wheel grabber is set in base 2, tension disk 6 is set in the front portion of arm 5.In the inside of arm 5, the machine spindle 8 as rotating shaft (only shown in Figure 2) that extends along left and right directions is set free to rotately.In addition, be provided with not shown needle bar drive device and take-up driving mechanism in the inside of arm 5.
Above-mentioned needle bar drive device is used for the rotation of machine spindle 8 is driven the driving up and down that is converted to the shank 9 that is arranged at arm 5 front end bottoms.In the lower end of shank 9 sewing needle 10 has been installed.Above-mentioned take-up driving mechanism is used for the rotation of machine spindle 8 is driven the driving up and down that is transformed to take-up (figure omits).In addition, the rotary driving force of machine spindle 8 also is passed to above-mentioned line wheel grabber, with the driven in synchronism line wheel grabber that moves up and down of shank 9.Like this, constituted and made mechanism.
In addition, in above-mentioned socle 4, be provided be used to backstitch backstitch control lever 11.Be provided with Bottin thread winding device 13 on the top of arm 5.In addition, also be provided with described green light 54 in back and red light 56 in the front of arm 5.
In addition, though not shown in the drawings,, in aforesaid operations platform 2, be provided with the motor of sewing machine of the drive source that constitutes above-mentioned machine spindle 8, also be provided with pedal starting shutdown switch etc. simultaneously.Shown in the partial schematic diagram of Fig. 2, on the output shaft of above-mentioned motor of sewing machine, be fixed with belt pulley, at this belt pulley and be fixed between the belt wheel 18 of machine spindle 8 right-hand members around hanging with vee-belt 7.Like this, just can drive machine spindle 8 by the motor of sewing machine rotation.In addition, above-mentioned motor of sewing machine is driven by the supply of electric power of source power supply, at this moment, should adopt and receive the motor that the type (voltage and power supply mode) of the source power supply of supply of electric power adapts.
In the Sewing machines 1 of present embodiment, the embedding form is equipped with generator 15 in addition on machine spindle 8.And, be provided with the galvanic source voltage control circuit that the electric power that above-mentioned generator 15 is produced is converted to assigned voltage (for example 5V), simultaneously, be provided with maintenance CPU26 as the electronic device of working by the power supply of this source voltage control circuit.
Below, generator 15 is described.As shown in Figure 2, the right-hand member side part in arm 5 inside, above-mentioned machine spindle 8 passes through bearing 16,17 rotatably supports on sewing machine frame 12.In the present embodiment, generator 15 is made of the stepper motor of PM type (permanent-magnet type), and is arranged between the above-mentioned bearing 16,17.Owing to use this PM type stepper motor well-known, so only do simple declaration as the technology that generator 15 generates electricity.
That is, setting-in has been fixed sleeve 20 on the periphery of machine spindle 8.The periphery of described sleeve 20 for example be provided with along week towards each other with 24 utmost point group of magnets 21 of 12 S utmost points of annular array and 12 N utmost points.
On the other hand, in above-mentioned sewing machine frame 12, in bearing 16 sides, the loop bracket parts of making by the fastening aluminium of screw in many places 19 are equipped with outer cover 22 on the carriage member 19.In described outer cover 22, accommodate 4 phase coil 23a～23d on 2 shuttles (bobbin cradle) that are wrapped in arrangement vertically shown in Figure 5.These coils 23a～23d is relatively arranged on the periphery of annular magnet group 21 and keeps very little slit with the periphery of annular magnet group 21.Though do not illustrate in the drawings,, coil 23a, 23c state opposite each other also with the coiling winding direction, that be connected in series is wrapped on the shuttle.Coil 23b, 23d state opposite each other with winding direction and that be connected in series is wrapped on another shuttle.In each shuttle, be provided with profile of tooth inductor (not shown) being positioned at coil 23a～23d week place.
Like this, rotation rotating band rotating ring shape group of magnets 21 rotations by machine spindle 8, produce magnetic field among each coil 23a～23d in the generator (PM type stepper motor) 15, thus produce waveform as shown in Figure 3 such differ 4 alternating voltages that constitute mutually of the Φ 1～Φ 4 of 90 degree respectively by the phase angle.At this moment, the frequency of the alternating voltage of generation is directly proportional with the revolution of machine spindle 8.As shown in Figure 5, generator 15 is provided with 4 lead-out terminals and the ground terminal from each coil 23a～23d.In ground terminal, the tie point of coil 23a, 23c and the tie point of coil 23b, 23d have been connected.
Above-mentioned source voltage control circuit and maintenance are installed on the electric substrate 25 (with reference to Fig. 5) with CPU26.Below, with reference to Fig. 5 source voltage control circuit and maintenance are described with CPU26.In addition, though do not mark in the drawings,, electric substrate 25 is loaded on the back that forms sub-assembly in the box and be arranged on above-mentioned arm 5.At this moment, in the back of box bonnet can be set with opening and closing, this back cover portion is provided with described reset switch 45 in back and alarm buzzer 50.
At first, as shown in Figure 5, above-mentioned maintenance is made of the monolithic type microcomputer with CPU26.This maintenance is provided with EEPROM (ROM that the electronics that can realize data writes, deletes) 26a, RAM26b, a plurality of input port I1～I8 and output port O1～O3 etc. with CPU26.Above-mentioned EEPROM26a is as the memory cell of storage record Sewing machines 1 accumulated running time.
The structure of above-mentioned source voltage control circuit as shown in Figure 5.Numbering and unnumbered little rectangle frame are all represented resistance among the figure.
The lead-out terminal of above-mentioned generator 15 is connected on the connector 25a that is arranged in the electric substrate 25.At this moment, by diode D1～D4 halfwave rectifier is carried out in 4 phases (Φ 1～Φ 4) output from 4 coil 23a～23d of generator 15 respectively, and they are offered electric power supply line L1.The dc waveform that comprises ripple component of the halfwave rectifier that process is so as shown in Figure 4.In addition, the ground terminal of generator 15 is connected with ground wire GL1.
Be connected with Zener diode (voltage stabilizing element) 27 between above-mentioned electric power supply line L1 and ground wire GL1, described Zener diode (voltage stabilizing element) 27 is connected with the base stage of transistor 28.Zener diode 27 is used to carry out the 10V pressure limiting, as Zener voltage, for example is set at about 10V.
If by applying Zener voltage, transistor 28 is started working, and the direct current of the transistor 28 of then flowing through is by next root current limliting transistor 29 restriction electric current, and is transfused to adverse current and prevents diode 30.In 10V line L2, make the adverse current of flowing through prevent that the electric current of diode 30 is level and smooth by capacitor group 31A.Direct current behind the about 10V of voltage level and smooth is offered next Zener diode 32, offer 3 terminal adjusters 33 simultaneously.Obtain further level and smooth DC current through the 1st voltage stabilizing line L3 and offer general 5V line L5 by 3 terminal adjusters 33 and capacitor group 31B.
On the other hand, the Zener diode 32 that is connected between above-mentioned 10V line L2 and ground wire GL2 is used to carry out the 5V pressure limiting, as Zener voltage, for example is set at about 5V.Flow through the direct current of the transistor 34 of working by the Zener voltage that applies Zener diode 32 through being arranged on diode 35 among the 2nd voltage stabilizing line L4 and resistance 60 backs to large value capacitor 36 chargings.Meanwhile, offer general 5V line L5 through diode 37 again, general 5V line L5 is connected with the power supply terminal 14 (VCC terminal) of CPU26.
That is, to the direct current that general 5V line L5 provides 5V, simultaneously, provide the direct current of 5V to general 5V line L5 through the 2nd voltage stabilizing line L4 through the 1st voltage stabilizing line L3.When machine spindle 8 rotations, when in generator 15, producing voltage, preferentially use the 1st voltage stabilizing line L3.Herein, above-mentioned ground wire GL2 is connected with the ground terminal 15 (GND terminal) of CPU26.
Electric power supply line L1 is connected with an input terminal of comparator 38 by resistance 61, and meanwhile, connect with resistance 61 in capacitor 39, resistance 40 and Zener diode 41 backs in parallel.The Zener voltage of Zener diode 41 for example is set at 9V, will be applied to an above-mentioned input terminal of comparator 38 by the voltage of the about 9V after Zener diode 41 pressure limitings.Be applied on another input terminal of comparator 38 as normal voltage by the about 0.5V voltage after the 5V output dividing potential drop of 42,43 pairs 3 terminal adjusters 33 of 2 divider resistances.
Like this, if the DC voltage of an input terminal that is applied to comparator 38 provides " 0V " voltage by generating voltage supply line L6 to the input terminal I1 of CPU26 so less than the normal voltage that is applied to another input terminal.To be applied to the normal voltage of another input terminal big if be applied to the DirectCurrent Voltage Ratio of an input terminal, provides " 5V " direct current by generating voltage supply line L6 to input terminal I1 so.
At this moment, when the rotating speed of machine spindle 8 reaches about 200～250rpm, on electric power supply line L1, apply the direct current more than about 1V, provide about 5V to input terminal I1, i.e. " H " level generating voltage signal.Among the resetting voltage supply line L7 that between ground wire GL2 and general 5V line L5, is connected, be provided with the disposable battery 44 that constitutes by lithium battery etc. respectively, the 1st switch 45a and the adverse current of reset switch 45 prevents diode 46.
Between the removing terminal I6 of ground wire GL2 and CPU26, be folded with the 2nd switch 45b of reset switch 45.Herein, the ON action is carried out in the manual operation of these the 1st switch 45a and the 2nd switch 45b and action button interlock simultaneously.Herein, the action button of reset switch 45 is flush-mounted in the inboard, hole that is arranged on the above-mentioned bonnet.The user is by using elongated rod-shaped part ability pressing operation button.
Herein, green light 54 is used to point out the normal condition of the drive system operate as normal of Sewing machines 1.In addition, as described later, because Sewing machines 1 has turned round the stipulated time (for example, about 700 hours), therefore, red light 56 can be supervised the lubricating oil (butter) of annotating in many driving shafts of Sewing machines 1, promptly plays the effect that the prompting Sewing machines is in the alarm lamp of maintenance phase.
Herein, source voltage control circuit is by electric power supply line L1,10V line L2, the 1st voltage stabilizing line L3, the 2nd voltage stabilizing line L4, general 5V line L5, Zener diode 27,32, transistor 28,29,34, capacitor 31A, 31B, 36, diode D1～D4,30,35, formations such as 37.Wherein, by 10V line L2, the 1st voltage stabilizing line L3, the 2nd voltage stabilizing line L4, general 5V line L5, Zener diode 27,32, transistor 28,29,34, capacitor 31A, 31B, diodes 30,35,37 etc. constitute the voltage stabilizing generative circuit.
In addition, by comparator 38, resistance 61, capacitor 39, resistance 40, Zener diode 41, formations such as divider resistance 42,43 are judged the judging unit whether Sewing machines 1 turns round.Constitute the Tip element that prompting Sewing machines accumulated running time has reached setting by red light 56 and alarm buzzer 50 etc.
Below, the effect to said structure describes with reference to the flow chart of Fig. 6.In the EEPROM26a of above-mentioned CPU26, stored the control program of filling lubricating oil prompting in advance.By carrying out this control program, CPU26 carries out processing shown in Figure 6.Symbol Si (i=11,12,13 among Fig. 6 ...) the expression step.In addition, when this Sewing machines 1 dispatches from the factory, the data of the accumulated running time T that stores are carried out zero clearing in the accumulative total memory of EEPROM26a.
When making, if the user steps on starting shutdown switch (pedal), then make the motor running of Sewing machines, drive machine spindle 8 rotations by V belt 7, and make operation by apparatus for sewing.At this moment, by the rotation of machine spindle 8, generator 15 work are to produce 4 cross streams voltages (Φ 1～Φ 4).In this case, because originally, large value capacitor 36 is also uncharged, does not therefore also have through the 2nd voltage stabilizing line L4, provides supply voltage from general 5V line L5 to the input terminal I4 of CPU26.
Owing to the alternating voltage from generator 15 has been carried out halfwave rectifier and has provided it to electric power supply line L1 by diode D1～D4, therefore, if offer the normal voltage (about 0.5V) of another input terminal of DirectCurrent Voltage Ratio of an input terminal in the comparator 38 by electric power supply line L1 big, when just the rotating speed of machine spindle 8 is higher than about 200～250rpm, provide " H " the generating voltage signal of level from comparator 38 to input terminal I1 so.
At this moment, read the generating voltage signal Gv (S11) that is applied to input terminal I1, if this generating voltage signal Gv is " H " level (S12:Yes), green light 54 lights (S13) so.Afterwards, when the generating voltage signal Gv that reads every very short time is " H " level, that is to say that (S15, S16:Yes), the t duration of runs of Sewing machines 1 calculated (S14) when this was made when making.
Then, when generating voltage signal Gv becomes " L " level, when Sewing machines 1 shuts down (S16:No), green light 54 extinguishes (S17), calculate with this duration of runs t be added to the up-to-date accumulated running time T (S18) of gained among accumulated running time T last time.Afterwards, described up-to-date accumulated running time T is stored in the accumulative total memory of EEPROM26a (S19).Then, if described accumulated running time T (S20:No), carries out step S11～S20 so repeatedly less than the setting-up time B (for example, about 700 hours) that stipulates.
In contrast, if accumulated running time T for setting-up time B (S20:Yes), red light 56 is lighted so, alarm buzzer 50 work (S21) simultaneously.By alarm buzzer 50 and red light 56, notify the user to arrive the maintenance phase (filling lubricating oil).After the user receives these information, can carry out at the appropriate time to the drive system filling butter of regulation or the upkeep operation of lubricating oil.
If the user has finished the interpolation butter, then push and handle above-mentioned reset switch 45 (S22:Yes).Like this, will carry out the zero clearing that writes initial value " 0 " among the accumulated running time T that in the accumulative total memory, stores and handle (S23).Afterwards, Sewing machines 1 can proceed to make normally operation.
, when having pushed reset switch 45, the direct current that provides from disposable battery 44 prevents that through closed the 1st switch 45a and adverse current diode 46 from offering general 5V line L5.Meanwhile, owing to make input terminal (removing terminal) I6 ground connection, therefore,, make the accumulated running time T zero clearing of in the accumulative total memory, preserving according to " L " level clear signal by the 2nd switch 45b of closure.At this moment, because disposable battery 44 (lithium battery) only is used to remove accumulated running time T, so its life-span is very long, for example, approximately can use 7～10 years.
By use present embodiment desirable following effect.In the present embodiment, the rotation that is provided with by machine spindle 8 drives the generator 15 that generates electricity, and by source voltage control circuit, its generation power is converted to the direct current of assigned voltage, thereby obtains to drive the power supply of safeguarding with CPU26.Therefore, it is different from the past will be stored in the battery device with the driving power that obtains control device by the electric power that solar cell provides, thus to the place to place of Sewing machines 1 without any restriction, and volume is little, low price.
And, it is different from and is provided with direct current that source power supply the is converted to assigned voltage device with the power subsystem that is supplied to CPU, even the buyer at Sewing machines 1 uses any source power supply to drive motor of sewing machine, all can obtain to be used to drive the assigned voltage of safeguarding with CPU26 by generator 15 and source voltage control circuit.Therefore, as producer, needn't prepare the multiple supply unit corresponding with various source power supplies.No matter which country product sells to, also, all can solve by a kind of generator 15 and source voltage control circuit no matter condition is set how, and, can obtain the structure of accessory power supply in simple, cheap mode.
In the present embodiment,, use CPU26 in the hope of the maintenance phase (the filling period of lubricating oil),, can carry out suitably maintenance management Sewing machines 1 because of depositing owing to be provided with the maintenance of calculating and storing Sewing machines accumulated running time T as electronic device.At this moment, but the rotated detection device of generator 15 double as machine spindles 8 therefore, the electronic unit of other purposes such as code device needn't be set, thereby structure is simpler, also is beneficial to the saving cost.
In addition, when the accumulated running time T that stores in the accumulative total memory of EEPROM26a reaches setting-up time B,, therefore, can clearly remind user's Sewing machines to arrive the maintenance phase because red light 56 and alarm buzzer 50 can be pointed out this situation by the vision and the sense of hearing.Generator 15 has adopted PM type stepper motor, thus have that cost is lower, good endurance, the good advantage of smoothness.
Below several versions of the present invention are described.Following version is to have carried out partly changing on the basis of above-mentioned the 1st embodiment.Therefore,, adopted identical use label with the identical part of above-mentioned the 1st embodiment, the Therefore, omited new diagram and detailed description, only to being described with the 1st embodiment difference.
1) Fig. 7 to Figure 10 has shown the 2nd embodiment of the present invention.In the 2nd embodiment, the circuit of electric substrate 25A is to have carried out partly changing on basis shown in Figure 5.That is, as shown in Figure 7, in generating voltage supply line L6 comparator 38 is not set, direct current that will electric power supply line L1 is supplied to input terminal I1.Accompany therewith, in CPU26, add A/D converter (simulating/digitalizer) 26c.At this moment, for example, the Zener voltage of Zener diode 41A is set at 5V, with the ceiling restriction of DC voltage at about 20V.
And, in EEPROM26a, as shown in Figure 8, stored generating voltage (V) and the corresponding revolution counter of rotating speed (rpm).Simultaneously, as shown in Figure 9, stored the correction factor table corresponding with rotating speed (rpm) and correction factor.Herein, when the rotating speed of machine spindle 8 was 3000 (rpm), the time of making still was applicable to the duration of runs.In contrast to this, under the situation of rotating speed less than above-mentioned rotating speed of machine spindle 8, reduce the actual conversion scale of time conversion of making to the duration of runs.In order to carry out described conversion, should preestablish correction factor.
That is, shown in the flow chart of Figure 10, read the generating voltage (V) that is applied on the input terminal I1 (S31),, calculate rotating speed V, simultaneously, calculate correction factor (S32) from correction factor table shown in Figure 9 from revolution counter shown in Figure 8 according to this generating voltage.Afterwards, rotating speed V be higher than fixed setting rotating speed Va (for example, about 300rpm) time (S33:Yes), green light 54 is lighted (S34), simultaneously, calculate the fixed t duration of runs (for example, about 1 second) (S35), according to the correction factor that draws by step S32, calculate and revise the Htn duration of runs (S36).
Then, read generating voltage (S37), the same rotating speed V and the correction factor (S38) of calculating respectively with step S32.(S39:Yes), execution in step S34～S39 repeatedly when rotating speed V is higher than setting rotating speed Va.Along with the end of making operation, when rotating speed V is lower than setting rotating speed Va (S39:No), green light 54 extinguishes (S40).
Afterwards, calculate will make by this a plurality of correction Ht1 duration of runs of forming of operation system, Ht2, Ht3 ... this total run time Ta (S41) of the whole addition gained of Htn.And, calculate the up-to-date accumulated running time T (S42) of gained among the accumulated running time T till being added to this total run time Ta last time.Afterwards, the same execution in step S43 with above-mentioned steps S19～S23～S47.Therefore, in this case, can calculate more accurately according to machine spindle 8 rotating speed corrections, as with the filling the corresponding time of lubricating oil accumulated running time T.Herein, by A/D converter 26c, the step S31～S33 of filling lubricating oil prompting control etc. constitutes judging means.
2) Figure 11 has shown the 3rd embodiment of the present invention.In this 3rd embodiment, constitute generator 15A by utilizing the so-called linear electric motors that generate electricity that move up and down as the shank 9 of the driving shaft that up and down reciprocatingly drives by motor of sewing machine.Shank 9 can be supported on the sewing machine frame 12 by pair of bearings 65,66 up and down with pumping.
The structure of generator 15A is as described below.That is, on described shank 9, be fixed with hard-wired standing finish 67, vertically support magnet carrier 68 by this standing finish 67.On magnet carrier 68, be provided with 16 utmost point group of magnets 70, in this group of magnets, for example make 8 S utmost points and 8 N utmost points vertically, arrange with linearity each other.4 coil 23a～23d are dispersed in very near in the right side of this linear group of magnets 70 and the 1 pair of iron core frame 71,72 up and down with コ word shape formation roughly.Be provided with the slit between iron core frame 71,72, its size is equivalent to 1/4 of the right length lambda of the magnet that is made of N utmost point magnet and S utmost point magnet.
In this structure, because shank 9 pumps because of the driving of motor of sewing machine, simultaneously, magnet carrier 68 also moves up and down in the predetermined distance scope, therefore, in each coil 23a～23d, produce the shifting magnetic field, thereby produce 4 alternating voltages that constitute mutually that differ 90 degree by the phase angle respectively.Utilize described generator 15A, be converted into the direct current of 5V for example by source voltage control circuit and offer and safeguard and use CPU26 by pump electric power that generating produces of shank 9.Still can obtain same effect by described the 2nd embodiment with above-mentioned the 1st embodiment.
3) Figure 12 has shown the 4th embodiment of the present invention.In this embodiment, the electric power that obtains by generator 15,15A does not provide to the maintenance CPU26 that is built in the Sewing machines 1, but be used for to external electrical device for example power supplies (charging) such as portable phone, MD player or CD Player, digital camera.
At this moment, in Sewing machines 1A,, a detachable vertical installation recess 4a as charging part that various electronic devices are installed is set for example in the front of socle 4.Be provided with a pair of power supply terminal 4b in described installation in recess 4a.The electric power that is produced by generator 15,15A is converted to the direct current of regulation by source voltage control circuit, and is supplied to a pair of power supply terminal 4b.
If external electrical device is installed in above-mentioned installation with among the recess 4a, then the charging terminal of electronic device contacts with power supply terminal 4b to supply with the charging direct current.Like this, just, constitute power supply unit.Described installation except the front that can be arranged on arm 5, also can be arranged at the steerable all places of the user place such as top of the side of socle 4 or arm 5 with recess (charging part).
]4) as generator 15, replace PM type stepper motor, also can adopt non-carbonate motor, various CD-ROM drive motors such as DC motor.
5) generator 15 also can beyond be installed under the embedding state to drive and be arranged on the full rotation syringe in the base 3 or partly rotate on the lower shaft of syringe, perhaps be installed on the shuttle driving shaft that is arranged at the Bottin thread winding device 13 (with reference to Fig. 1) above the arm 5.In addition, in being built in Sewing machines 1, the also rotating shaft that can be rotated by belt or gear rotating drive machine spindle 8, and it is installed on this rotating shaft in the outer setting of Sewing machines 1.
6) can adopt rechargeable battery substituting disposable battery 44.
7) zero setting that causes for the maloperation that prevents because of reset switch 45 is handled, and also can carry out the zero setting processing when repeatedly handling reset switch 45.
8) the present invention is not limited to embodiment recited above, and those skilled in the art are not breaking away from the scope of the inventive concept, can make various changes to the foregoing description, and the present invention also comprises these versions.
9) self-evident, the present invention is applicable to be provided with and makes mechanism and be rotated the rotating shaft of driving or all Sewing machiness of the driving shaft that moves back and forth by motor of sewing machine.
Claims (4)
1. Sewing machines, it is provided with the rotating shaft that is driven by the motor of sewing machine rotation, it is characterized in that, is provided with:
Be installed on that PM type stepper motor on the described rotating shaft constitutes and the generator of rotary electrification by this rotating shaft by outer embedding,
The generation power of described generator is converted to the source voltage control circuit of assigned voltage, and
From the electronic device of described source voltage control circuit power supply,
Described electronic device comprises the CPU that is assemblied in the sewing machine body,
Described source voltage control circuit has the voltage stabilizing generative circuit, and it is used to produce the supply voltage of the assigned voltage that provides to described CPU,
Described Sewing machines is provided with judging unit, and this judging unit is judged the Sewing machines running by the rotary speed of the described rotating shaft corresponding with the voltage level of described generator for electricity generation electric power,
Described CPU has the accumulated running time computing unit, and this accumulated running time computing unit receives the output of described judging unit, and to adding up to calculate accumulated running time the duration of runs of using the correction factor corresponding with described rotary speed to carry out revising.
2. Sewing machines according to claim 1 is characterized in that: be provided with when described accumulated running time reaches setting the Tip element of being controlled by described CPU and pointing out.
3. Sewing machines according to claim 1 is characterized in that: described CPU comprises the memory cell that is used to store the accumulated running time that calculates,
Described Sewing machines is provided with and will be stored in the reset switch of the accumulated running time zero clearing in the described memory cell.
4. Sewing machines according to claim 3 is characterized in that: be provided with under state not by described generator for electricity generation, when the described reset switch of operation to the battery of described CPU power supply.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004124569A JP4419661B2 (en) | 2004-04-20 | 2004-04-20 | sewing machine |
| JP2004-124569 | 2004-04-20 | ||
| JP2004124569 | 2004-04-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699663A CN1699663A (en) | 2005-11-23 |
| CN1699663B true CN1699663B (en) | 2011-02-09 |
Family
ID=35434167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510081720 Expired - Fee Related CN1699663B (en) | 2004-04-20 | 2005-04-20 | Sewing machines |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4419661B2 (en) |
| CN (1) | CN1699663B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009225899A (en) | 2008-03-20 | 2009-10-08 | Brother Ind Ltd | Sewing machine |
| JP2012135468A (en) * | 2010-12-27 | 2012-07-19 | Brother Ind Ltd | Sewing machine |
| JP2012205839A (en) * | 2011-03-30 | 2012-10-25 | Brother Ind Ltd | Sewing machine |
| CN102953212A (en) * | 2011-08-30 | 2013-03-06 | 吴江市银杉织造有限公司 | Weaving machine |
| JP6031243B2 (en) * | 2012-03-28 | 2016-11-24 | Juki株式会社 | sewing machine |
| CN102704198B (en) * | 2012-06-18 | 2014-04-23 | 上海威士机械有限公司 | Button translation and rotation improvement mechanism for button sewing machine tool |
| JP6978276B2 (en) * | 2017-10-27 | 2021-12-08 | Juki株式会社 | Management system, sewing machine and management equipment |
| KR102007605B1 (en) * | 2018-03-08 | 2019-08-07 | 유한회사 제스텍 | Power supply systems for industrial machinery |
| JP2020022294A (en) * | 2018-08-02 | 2020-02-06 | 東芝三菱電機産業システム株式会社 | Electric motor and lubricant filling time determination system for the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041982A (en) * | 1988-10-12 | 1990-05-09 | 曼飞那股份有限公司 | Sewing machines |
| CN1276449A (en) * | 1999-05-07 | 2000-12-13 | 重机公司 | Electronic controlled sewing machine |
| CN1283892A (en) * | 1999-08-10 | 2001-02-14 | 重机公司 | Controller of sewing machine motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59179494U (en) * | 1983-05-16 | 1984-11-30 | 三菱電機株式会社 | electric sewing machine |
| JPH0194892A (en) * | 1987-10-05 | 1989-04-13 | Matsushita Electric Ind Co Ltd | Apparatus for driving sewing machine |
| JP2941291B2 (en) * | 1988-10-14 | 1999-08-25 | 蛇の目ミシン工業株式会社 | Multiple power supply driven sewing machine |
| JPH03131294A (en) * | 1989-10-18 | 1991-06-04 | Hitachi Ltd | Position transducer of sewing machine needle |
| JP2001162072A (en) * | 1999-12-08 | 2001-06-19 | Juki Corp | Sewing machine |
| JP2002248283A (en) * | 2001-02-26 | 2002-09-03 | Juki Corp | Sewing device |
-
2004
- 2004-04-20 JP JP2004124569A patent/JP4419661B2/en not_active Expired - Fee Related
-
2005
- 2005-04-20 CN CN 200510081720 patent/CN1699663B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041982A (en) * | 1988-10-12 | 1990-05-09 | 曼飞那股份有限公司 | Sewing machines |
| CN1276449A (en) * | 1999-05-07 | 2000-12-13 | 重机公司 | Electronic controlled sewing machine |
| CN1283892A (en) * | 1999-08-10 | 2001-02-14 | 重机公司 | Controller of sewing machine motor |
Non-Patent Citations (1)
| Title |
|---|
| JP平3-131294A 1991.06.04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005304724A (en) | 2005-11-04 |
| CN1699663A (en) | 2005-11-23 |
| JP4419661B2 (en) | 2010-02-24 |
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