CN205248928U - Die heating device based on permanent magnetism response - Google Patents
Die heating device based on permanent magnetism response Download PDFInfo
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- CN205248928U CN205248928U CN201521029516.5U CN201521029516U CN205248928U CN 205248928 U CN205248928 U CN 205248928U CN 201521029516 U CN201521029516 U CN 201521029516U CN 205248928 U CN205248928 U CN 205248928U
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- permanent magnetism
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Abstract
The utility model discloses a die heating device based on permanent magnetism response, it is including the frame, be equipped with the position of bearing that is used for placing the mould in the frame, be equipped with stator module and rotor subassembly in the frame, the last permanent magnetism magnetic field that is formed with of stator module, the rotor subassembly is used for converting this permanent magnetism magnetic field alternating magnetic field into and acting on the mould when it rotates. Above -mentioned die heating device, it produces alternating magnetic field at rotor subassembly pivoted simultaneously, and this alternating magnetic field receives the rotational speed restriction of rotor subassembly and is the low frequency state, compares prior art, has avoided the high frequency magnetic field to lead to the fact the injury to arris, limit, the jiao chu of mould, and that has effectively improved the mould adds thermal mass and heating efficiency, simultaneously, the utility model discloses a convert permanent magnetism magnetic field into alternating magnetic field, its mode of comparing electromagnetic heating, the energy has effectively been saved to the electrical loss of having avoided induction coil to produce.
Description
Technical field
The utility model relates to mold heating device, relates in particular to a kind of dress of the mold heated based on permanent magnet inductionPut.
Background technology
At metal fever manufacture field, the supporting mould of extruder or forging press needed to add in advance before usingHeat, its effect is to allow mould and processed ingot casting have close temperature, improves the matter of extrusion capability and goodsAmount, existing mold machining technology, is that the high frequency magnetic field direct effect that electrified coil is produced arrives heated mouldOn tool, it bears very large induced current on limited thickness, and this large faradic unit are addsThe energy of heat is excessive, causes mould rib, limit, angle place hot-spot, mould is injured to some extent, in addition, streamThe electric current of crossing coil can produce electrical loss because of coil resistance, not only inefficiency, and waste energy, spyBe not for specification compared with for large coil, also need, with the cooling water temperature of processing, to cause heaterComplex structure, cost higher.
Utility model content
The technical problems to be solved in the utility model is, for the deficiencies in the prior art, provides a kind of and utilizesLow frequency magnetic field is to mold heated, mould is damaged avoiding, simultaneously the efficiency of heating surface high, save the energy,Mold heating device simple in structure, with low cost.
For solving the problems of the technologies described above, the utility model adopts following technical scheme.
Based on a mold heating device for permanent magnet induction, it includes frame, described frame be provided with forThe carrying position of placing mould, described frame is provided with stator module and rotor assembly, shape on described stator moduleBecome to have a permanent magnetic field, described rotor assembly in the time that it rotates, this permanent magnetic field being converted to alternating magnetic field andAct on mould.
Preferably, described stator module includes permanent magnetism mainboard, in described frame, is fixed with main shaft, forever describedMagnetic mainboard is fixed on main shaft, is embedded with the multiple permanent magnets that circumferentially distribute successively along it on described permanent magnetism mainboard,The N/S of every two adjacent permanent magnets is extremely contrary.
Preferably, described rotor assembly includes the first rotation magnetic conductive disk and the second rotation magnetic conductive disk, forever describedOn the main shaft of magnetic mainboard both sides, be arranged with respectively bearing, described the first rotation magnetic conductive disk and the second rotation magnetic conductive diskThe outside journal axle that is individually fixed in two bearings puts, and described the first rotation magnetic conductive disk is positioned at permanent magnetism mainboard and carryingBetween position, described the first rotation magnetic conductive disk is provided with multiple the first magnetic conduction sheets that circumferentially distribute successively along it, everyBetween two adjacent the first magnetic conduction sheets, be provided with the first non-magnetic insulating trip, on described the second rotation magnetic conductive diskBe provided with multiple the second magnetic conduction sheets that circumferentially distribute successively along it, between every two adjacent the second magnetic conduction sheets, be provided withThe second non-magnetic insulating trip, described the first insulating trip and the second magnetic conduction sheet are oppositely arranged, described the first rotationWhen magnetic conductive disk and the second rotation magnetic conductive disk synchronously rotate, the magnetic field conductively-closed that described the first magnetic conduction sheet covers, wearsThe magnetic direction of crossing the first insulating trip alternately changes and forms alternating magnetic field and act on the mould on carrying position.
Preferably, the quantity of described the first magnetic conduction sheet and the second magnetic conduction sheet is all 6, and described the first rotationThe angle of magnetic conductive disk and the second rotation magnetic conductive disk differs 30 °, to make the first insulating trip and the second magnetic conduction sheet position phaseRelative with the second insulating trip position to, the first magnetic conduction sheet.
Preferably, described the second rotation magnetic conductive disk dorsad a side of permanent magnetism mainboard be provided with successively power coil and leadingMagnetic sheet, the action of alternating magnetic field that described the second rotation magnetic conductive disk forms while rotation is in power coil, described in makingPower coil generation current, this electric current is fed back to an electric power loop through rectification circuit.
Preferably, also include six permanent magnetism posts that are arranged in the first rotation magnetic conductive disk and the second rotation magnetic conductive disk,The N/S of every two adjacent permanent magnetism posts is extremely contrary, outside described the first rotation magnetic conductive disk and the second rotation magnetic conductive diskSide is provided with six electromagnets, and six permanent magnetism posts are complied with along the edge of the first rotation magnetic conductive disk and the second rotation magnetic conductive diskInferior distribution, and between described permanent magnetism post and permanent magnetism mainboard, there is predeterminable range, described electromagnet and permanent magnetism post oneOne correspondence, described electromagnet accesses DC voltage and produces S/N magnetic pole, produces active force with permanent magnetism post. InstituteState electromagnet and be electrically connected with drive circuit, described electromagnet includes U-shaped amorphous magnetic conductor and solenoid,Described U-shaped amorphous magnetic conductor is located at the first rotation magnetic conductive disk and the second rotation magnetic conductive disk, and described permanent magnetism post is establishedBetween two support arms of U-shaped amorphous magnetic conductor, there is space in described U-shaped amorphous magnetic conductor and permanent magnetism intercolumniation,And in the time that a upper permanent magnetism post moves between two support arms of U-shaped amorphous magnetic conductor, described drive circuit is to electromagnetismBody on-load voltage produces active force to make between electromagnet and permanent magnetism post, and when next permanent magnetism post, to move to U-shaped non-Between two support arms of brilliant magnetic conductor time, described drive circuit cuts off to make electromagnetism by the voltage that loads on electromagnetBody moment produces reverse magnetic pole, by this reverse magnetic pole, current permanent magnetism post is produced to active force. When rotation is ledWhen permanent magnetism post in disk moves to the middle of two support arms of U-shaped amorphous magnetic conductor, and if direct solenoidThe default magnetic polarity of body is identical, and drive circuit can power up by electromagnet, and permanent magnet is produced to repulsive force, promotes foreverMagnet continues rotation, and tail permanent magnetism post is produced to suction. If permanent magnetism post moves to U-shaped magnetic conductorThe middle of two support arms time, the magnetic polarity default with direct current magnet is contrary, described drive circuit will loadVoltage in electromagnet cuts off suddenly, to make electromagnet moment produce reverse magnetic pole, by this reverse magnetic poleCurrent permanent magnetism post is produced and repels thrust, promote rotation magnetic conductive disk and continue rotation.
Preferably, described drive circuit includes impulse controller and switching tube, the arteries and veins of described impulse controllerRush the control end that output is connected in switching tube, the output of described switching tube is connected with after solenoid series connectionBetween the both positive and negative polarity of dc source, described impulse controller is by exporting continuous pulse signal to switching tubeAnd switch on or off the voltage of electromagnet, and continuing thrust to make electromagnet produce permanent magnetism post, described U-shaped is non-The support arm of brilliant magnetic conductor is to the rotation direction inclination preset angle of the first rotation magnetic conductive disk and the second rotation magnetic conductive diskDegree.
Preferably, described drive circuit also includes position detector, and described position detector is for detection ofThe position of permanent magnetism post in one rotation magnetic conductive disk and the second rotation magnetic conductive disk, and when permanent magnetism post, to move to U-shaped non-Between two support arms of brilliant magnetic conductor time, described position detector is to impulse controller output signal, described pulseController is according to this signal and the conducting of gauge tap pipe or shutoff.
Preferably, described position detector includes the first infrared tube and the second infrared tube, described firstInfrared tube and the second infrared tube are located at respectively the first rotation magnetic conductive disk and the second rotation magnetic conductive disk radiallyTwo ends, offer six the first through holes on described the first rotation magnetic conductive disk, on described the second rotation magnetic conductive disk, openBe provided with six the second through holes, described the first through hole and the second through hole one by one corresponding and the two be communicated with by fibre pipe,Described the first through hole and the second through hole respectively with six adjacent settings of permanent magnetism post, described the first infrared tube andThe infrared ray of two infrared tubes can pass the first through hole and the second through hole.
Preferably, described permanent magnetism mainboard is provided with 24 permanent magnets, and described permanent magnet is Nd-Fe-B magnetic pole permanent magnet,Described carrying position is provided with the thermal insulation layer that covers at mould.
The disclosed mold heating device based on permanent magnet induction of the utility model, continues to rotate at rotor assemblyUnder condition, the mould of the action of alternating magnetic field of its conversion on carrying position, makes to produce on mould eddy current, andUtilize this eddy current to heat mould, the disclosed mold heating device of the utility model, it is at rotor assemblyWhen rotation, produce alternating magnetic field, this alternating magnetic field is subject to the rotating speed restriction of rotor assembly and is low frequency state,Compared to existing technologies, avoid rib, limit, the Jiao Chu of high frequency magnetic field to mould to damage, effectively carriedHigh heating quality and the efficiency of heating surface of mould, meanwhile, the utility model is that permanent magnetic field is converted to alternationMagnetic field, it compares the mode of Electromagnetic Heating, and the electrical loss of having avoided induction coil to produce, effectively savesThe energy.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model mold heating device.
Fig. 2 is the partial enlarged drawing of mold heating device in Fig. 1.
Fig. 3 is the partial enlarged drawing in Fig. 2.
Fig. 4 is the front view after rotor assembly decomposes.
State diagram one when Fig. 5 is the first rotation magnetic conductive disk rotation.
State diagram two when Fig. 6 is the first rotation magnetic conductive disk rotation.
State diagram one when Fig. 7 is electromagnet driving rotor assembly.
State diagram two when Fig. 8 is electromagnet driving rotor assembly.
Fig. 9 is the circuit diagram of drive circuit.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in more detail.
The utility model discloses a kind of mold heating device based on permanent magnet induction, in conjunction with Fig. 1 to Fig. 9 instituteShow, it includes frame 1, and described frame 1 is provided with the carrying position 101 for placing mould 100, described inFrame 1 is provided with stator module and rotor assembly 2, on described stator module, is formed with permanent magnetic field, described in turnSub-component 2 for being converted to this permanent magnetic field alternating magnetic field and acting on mould 100 in the time that it rotates.
In the above-mentioned mold heating device based on permanent magnet induction, under the condition that continues to rotate at rotor assembly, itsThe mould of the action of alternating magnetic field of conversion on carrying position, makes to produce on mould eddy current, and utilizes this eddy currentMould is heated, the disclosed mold heating device of the utility model, it is when rotor assembly rotatesProduce alternating magnetic field, this alternating magnetic field is subject to the rotating speed restriction of rotor assembly and is low frequency state, compares existing skillArt, avoided rib, limit, the Jiao Chu of high frequency magnetic field to mould to damage, and effectively improved mouldHeating quality and the efficiency of heating surface, meanwhile, the utility model is that permanent magnetic field is converted to alternating magnetic field, its phaseThan the mode of Electromagnetic Heating, avoid generation electrical loss, effectively save the energy, meanwhile, this practicalityNew structure is simple, with low cost, be easy to realize.
Further, described stator module includes permanent magnetism mainboard 4, in described frame 1, is fixed with main shaft 3,Described permanent magnetism mainboard 4 is fixed on main shaft 3, is embedded with along it and circumferentially distributes successively on described permanent magnetism mainboard 4Multiple permanent magnets 40, the N/S of every two adjacent permanent magnets 40 is extremely contrary.
Described rotor assembly 2 includes the first rotation magnetic conductive disk 5 and the second rotation magnetic conductive disk 6, described permanent magnetism masterOn the main shaft 3 of plate 4 both sides, be arranged with respectively bearing 30, described the first rotation magnetic conductive disk 5 and the second rotation are ledThe outside journal axle that disk 6 is individually fixed in two bearings 30 puts, and described the first rotation magnetic conductive disk 5 is positioned at permanent magnetismBetween mainboard 4 and carrying position 101, described the first rotation magnetic conductive disk 5 is provided with and circumferentially distributes successively along itMultiple the first magnetic conduction sheets 50, are provided with the first non-magnetic insulating trip between every two adjacent the first magnetic conduction sheets 5051, described the second rotation magnetic conductive disk 6 is provided with multiple the second magnetic conduction sheets 60 that circumferentially distribute successively along it, everyBetween two adjacent the second magnetic conduction sheets 60, be provided with the second non-magnetic insulating trip 61, described the first insulating trip51 and second magnetic conduction sheet 60 be oppositely arranged, described first rotation magnetic conductive disk 5 and second rotation magnetic conductive disk 6 synchronousWhen rotation, the magnetic field conductively-closed that described the first magnetic conduction sheet 50 covers, through the magnetic field side of the first insulating trip 51Form alternating magnetic field and act on the mould 100 on carrying position 101 to alternately changing.
The quantity of described the first magnetic conduction sheet 50 and the second magnetic conduction sheet 60 is all 6, and described the first rotation is ledThe angle of disk 5 and the second rotation magnetic conductive disk 6 differs 30 °, to make the first insulating trip 51 and the second magnetic conduction sheet60 positions are relative, the first magnetic conduction sheet 50 is relative with the second insulating trip 61 positions.
The mold heating device of said structure, its operation principle is that the first rotation magnetic conductive disk 5 turns to a certainWhen state, please refer to Fig. 5, because the first magnetic conduction sheet 50 has magnetic conduction effect, so the magnetic field quilt of its covering50 short circuits of this first magnetic conduction sheet, and through the magnetic field of the first insulating trip 51 to mould 100 direction radiation,Because the polarity of two adjacent permanent magnets 40 is contrary, so through the magnetic direction of this first insulating trip 51 beBy A to B, please refer to Fig. 6, in the time that the first rotation magnetic conductive disk 5 turns to NextState, the permanent magnetism of B positionIron is blocked by the first magnetic conduction sheet 50, and the magnetic direction at the first insulating trip 51 places becomes by A to C. Based on upperState principle, under the condition that continues to rotate at the first rotation magnetic conductive disk 5, the first insulating trip 51 places produce direction and hand overFor the alternating magnetic field changing, the mould 100 of this action of alternating magnetic field on carrying position 101, makes mould 100Upper generation eddy current, and utilize this eddy current to heat mould, the disclosed mold heating device of the utility model,It produces alternating magnetic field when the first rotation magnetic conductive disk 5 rotates, and this alternating magnetic field is subject to the first rotation magnetic conductionThe rotating speed of dish 5 limits and is low frequency state, compared to existing technologies, has avoided high frequency magnetic field to mould 100Rib, limit, Jiao Chu damage, effectively improved heating quality and the efficiency of heating surface of mould, meanwhile, thisUtility model is that permanent magnetic field is converted to alternating magnetic field, and it compares the mode of Electromagnetic Heating, has avoidedThe electrical loss that induction coil produces, has effectively saved the energy.
As a kind of optimal way, in order unnecessary magnetic energy to be converted to electric energy, this reality in heatingUtilizing outside the heating of permanent magnetism mainboard one side, utilize again the generating of permanent magnetism mainboard another side with novel. In conjunction with Fig. 1 extremelyShown in Fig. 4, described a second rotation magnetic conductive disk 6 dorsad side of permanent magnetism mainboard 4 is provided with power coil 7 successivelyWith magnetic conductive board 70, described second rotates the action of alternating magnetic field forming when magnetic conductive disk 6 rotates in power coil 7,To make described power coil 7 generation currents, this electric current is fed back to an electric power loop through rectification circuit.
Further, permanent magnetism mainboard 4 both sides angles differ the first magnetic conduction sheet 50 and second magnetic conduction sheet 60 of 30 °Flux path each other, and two faces of a permanent magnetism mainboard 4 for eddy-current heating and generating, the first rotation magnetic conductive diskIn trapezoidal magnetic conduction sheet be the magnetic screen of eddy-current heating, be also the magnetic flux at the trapezoidal permanent magnet of the power coil back sideRoad, the trapezoidal magnetic conduction sheet of the second rotation magnetic conductive disk is the magnetic screen of power coil, is also the trapezoidal permanent magnetism of heatingThe flux path at the body back side, to reduce magnetic resistance.
In conjunction with shown in Fig. 1 to Fig. 9, in order to drive the first rotation magnetic conductive disk 5 and the second rotation magnetic conductive disk 6 to turnMoving, also include six permanent magnetism posts 8 that are arranged in the first rotation magnetic conductive disk 5 and the second rotation magnetic conductive disk 6, everyThe N/S of two adjacent permanent magnetism posts 8 is extremely contrary, described the first rotation magnetic conductive disk 5 and the second rotation magnetic conductive disk 6Outside is provided with 9, six permanent magnetism posts 8 of six electromagnets along the first rotation magnetic conductive disk 5 and the second rotation magnetic conductive disk 6Edge distribute successively, and between described permanent magnetism post 8 and permanent magnetism mainboard 4, there is predeterminable range, described electromagnetismBody 9 is corresponding one by one with permanent magnetism post 8, and described electromagnet accesses DC voltage and produces S/N magnetic pole, described electricityMagnet 9 is electrically connected with drive circuit 10, and described electromagnet 9 includes U-shaped amorphous magnetic conductor 90 and electromagnetismCoil 91, described U-shaped amorphous magnetic conductor 90 is located at the first rotation magnetic conductive disk 5 and the second rotation magnetic conductive disk 6,Described permanent magnetism post 8 is located between two support arms of U-shaped amorphous magnetic conductor 90, described U-shaped amorphous magnetic conductor90 and permanent magnetism post 8 between there is space, and move to two of U-shaped amorphous magnetic conductor 90 when a upper permanent magnetism post 8Between support arm time, described drive circuit 10 to electromagnet 9 on-load voltages with make electromagnet 9 and permanent magnetism post 8 itBetween produce active force, in the time that next permanent magnetism post 8 moves between two support arms of U-shaped amorphous magnetic conductor 90, instituteState drive circuit 10 and cut off to make 9 moments of electromagnet to produce reverse magnetic pole the voltage that loads on electromagnet 9,By this reverse magnetic pole, current permanent magnetism post 8 is produced to active force.
In the present embodiment, described drive circuit 10 includes impulse controller 11 and switching tube 12, described arteries and veinsThe pulse output end that rushes controller 11 is connected in the base stage of switching tube 12, the output of described switching tube 12 withAfter solenoid 91 series connection, be connected between the both positive and negative polarity of dc source, described impulse controller 11 bySwitching tube 12 is exported continuous pulse signal and is switched on or off the voltage of electromagnet 9, to make electromagnet 9 rightPermanent magnetism post 8 produces and continues thrust. The support arm of described U-shaped amorphous magnetic conductor 90 is to the first rotation magnetic conductive disk 5 HesThe rotation direction inclination preset angles of the second rotation magnetic conductive disk 6.
The operation principle of said structure is in conjunction with shown in Fig. 7 and Fig. 8, and when power transmission, controller produces and continues 0.5 secondElectromagnet initial power-up signal, no matter permanent magnetism post 8 is in any position, all can attracted to produce contrary magneticBetween 90 two support arms of the utmost point, after the power-off of initial power-up signal ended crystal switch pipe, be stored in solenoidMagnetic energy can produce reverse electromagnetic push in when electric discharge. Because of the support arm and rotation magnetic conduction of U-shaped amorphous magnetic conductor 90Dish has preset angles, its tangential force to make magnetic conductive disk by fixing direction rotation. For example: when a upper permanent magnetism post 8While moving between two support arms of U-shaped amorphous magnetic conductor 90, described drive circuit 10 loads electromagnet 9Voltage, makes to produce repulsive force between electromagnet 9 and permanent magnetism post 8, and then promotes the first rotation magnetic conductive disk 5With the second rotation magnetic conductive disk 6, when next permanent magnetism post 8 moves between two support arms of U-shaped amorphous magnetic conductor 90Time, described drive circuit 10 cuts off the voltage that loads on electromagnet 9, and electromagnet 9 is based on inductance coil electricityThe principle that stream can not more become and moment produces reverse magnetic pole, produces current permanent magnetism post 8 by this reverse magnetic poleRaw repulsive force, in conjunction with the inertia of the first rotation magnetic conductive disk 5 and the second rotation magnetic conductive disk 6, and then promotes againThe first rotation magnetic conductive disk 5 and the second rotation magnetic conductive disk 6. Utilize drive circuit 10 repeatedly to switch on or off electromagnetismThe voltage of body 9, makes the first rotation magnetic conductive disk 5 and the second rotation magnetic conductive disk 6 continue rotation. The present embodimentIn, above-mentionedly form drive circuit by high frequency transistor, electromagnet, controller and position probing hole, by journeyOrder output pulse signal switches on or off the voltage of electromagnet.
Further, shown in Fig. 2, Fig. 4 and Fig. 9, described drive circuit 10 also includes position inspectionSurvey device 13, described position detector 13 is for detection of in the first rotation magnetic conductive disk 5 and the second rotation magnetic conductive disk 6The position of permanent magnetism post, and in the time that permanent magnetism post 8 moves between two support arms of U-shaped amorphous magnetic conductor 90, instituteState position detector 13 to impulse controller 11 output signals, described impulse controller 11 according to this signal and12 conductings of gauge tap pipe or shutoff. Described electric power loop is used for drive circuitry. Practical work processFor example: in the time that a upper permanent magnetism post 8 moves between two support arms of U-shaped amorphous magnetic conductor 90, the inspection of described positionSurvey device 13 to impulse controller 11 output pressurization instructions, to make impulse controller 11 gauge tap pipes 12 leadLogical, in the time that next permanent magnetism post 8 moves between two support arms of U-shaped amorphous magnetic conductor 90, described position probingDevice 13 makes to impulse controller 11 outputting cutting severed fingers, to make impulse controller 11 gauge tap pipes 12 turn-off,Described electric power loop is for powering to drive circuit 10.
As a kind of optimal way, it is red that described position detector 13 includes the first infrared tube 15 and secondTo managing 16, described the first infrared tube 15 and the second infrared tube 16 are located at respectively the first rotation magnetic conductive disk outward5 and second rotate magnetic conductive disk 6 two ends radially, on described the first rotation magnetic conductive disk 5, offer six firstThrough hole 52, offers six the second through holes 62, described the first through hole 52 on described the second rotation magnetic conductive disk 6With the second through hole 62 one by one corresponding and the two be communicated with by fibre pipe, described the first through hole 52 and the second through hole62 respectively with six adjacent settings of permanent magnetism post 8, described the first infrared tube 15 and the second infrared tube 16Infrared ray can pass the first through hole 52 and the second through hole 62.
Specific works principle is for example: when the infrared ray of 15 of the first infrared tubes through and upper permanent magnetism post 8 phasesWhen the first adjacent through hole 52 and the second through hole 62, these the first infrared tube 15 output pressurization instructions are to pulse controlDevice 11 processed; When the infrared ray of 15 of the first infrared tubes passes first through hole adjacent with next permanent magnetism post 852 and when the second through hole 62, these the first infrared tube 15 outputting cutting severed fingers make to impulse controller 11; SecondInfrared tube 16 is identical with the detection principle of the first infrared tube 15.
In the course of work, when N/S permanent magnetism post rotates to S/N electromagnet middle, if continue the electricity of electromagnetPress, will produce to pull-back forces permanent magnetism post, for avoiding this phenomenon to occur, when infrared mutual-tube detects foreverWhen magnetic post rotates to electromagnet middle, can send cut-offing instruction by cyclelog, control crystal switch pipeTurn-off, can not get over alter opinion according to inductance coil electric current, can produce at electromagnet two ends the height far away of opposite directionIn the spike of supply voltage, this pulse current, can produce N/S electromagnetic force N/S permanent magnet continue toFront promotion rotation, one part of current is loaded into charging storage on the high frequency capacitance being parallel on dc source simultaneously,The electric energy entering to reduce power supply.
When detect that S/N permanent magnetism post afterwards enters position, electromagnet middle, detects switch crystal simultaneouslyPipe is in the time of off state, and controller is understood follow procedure, and the conducting of driving switch pipe produces direct solenoid by designThe polarity of body S/N and the current S/N permanent magnetism post magnetic same sex, produce repulsive force, simultaneously contrary for belowPolarity N/S permanent magnetism post produces attraction, makes rotor continue rotation, when this N/S permanent magnetism post below forwards this to, controller again follow procedure turn-offs crystal switch pipe, produces reverse peak current when individual S/N electromagnet the middle,Obtain larger electromagnetic force drive rotor rotation, simultaneously again to capacitor charging.
Because electromagnet and permanent magnetism column polarity are all that N/S alternately places, so below electromagnet infrared tube is onlyWant the signal that can accurately detect that permanent magnetism post arrives, add and judge the whether existing output of controller, just can makeSix crystal switch pipe power transmission or power-off simultaneously, so accurately detect that permanent magnetism post enters electromagnet middlePosition and sequential very important, be namely equipped with the reason of two infrared tubes.
The utility model coordinates six electromagnets to drive, and establishes altogether six transistor switches, and each electromagnet has twoGroup coil, one is connected between transistor collector and power supply, and another group is connected to base stage and emitter stage after current limlitingBetween, two groups of coils are tightly coupled positive feedback, so that waveform is more precipitous, pulse current is larger, in order toSave electric energy.
In the present embodiment, described permanent magnetism mainboard 4 is provided with 24 permanent magnets 40, and described permanent magnet 40 is neodymiumsIron canopy permanent magnet, described carrying position 101 is provided with the thermal insulation layer 102 that covers at mould 100.
The utility model disclosed mold heating device, its avoided the rib of high frequency magnetic field to mould 100, limit,Angle place damages, and has effectively improved heating quality and the efficiency of heating surface of mould, and meanwhile, the utility model isPermanent magnetic field is converted to alternating magnetic field, permanent magnet induction is heated, permanent magnetic drive, permanent magnet generator is integrated,Effectively save the energy.
The above is the utility model preferred embodiment, is not limited to the utility model, allThe amendment made in technical scope of the present utility model, be equal to and replace or improvement etc., all should be included in this realityIn novel protected scope.
Claims (10)
1. the mold heating device based on permanent magnet induction, is characterized in that, includes frame, described machineFrame is provided with the carrying position for placing mould, and described frame is provided with stator module and rotor assembly, described inOn stator module, be formed with permanent magnetic field, described rotor assembly for changing this permanent magnetic field in the time that it rotatesFor alternating magnetic field acts on mould.
2. the mold heating device based on permanent magnet induction as claimed in claim 1, is characterized in that, described inStator module includes permanent magnetism mainboard, in described frame, is fixed with main shaft, and described permanent magnetism mainboard is fixed on main shaftUpper, on described permanent magnetism mainboard, be embedded with the multiple permanent magnets that circumferentially distribute successively along it, every adjacent two foreverThe N/S of magnet is extremely contrary.
3. the mold heating device based on permanent magnet induction as claimed in claim 2, is characterized in that, described inRotor assembly includes the first rotation magnetic conductive disk and the second rotation magnetic conductive disk, the main shaft of described permanent magnetism mainboard both sidesThe upper bearing that is arranged with respectively, described the first rotation magnetic conductive disk and the second rotation magnetic conductive disk are individually fixed in two axlesThe outside journal axle holding puts, and described the first rotation magnetic conductive disk is at permanent magnetism mainboard and carry between position described firstRotation magnetic conductive disk is provided with multiple the first magnetic conduction sheets that circumferentially distribute successively along it, leads for every adjacent two firstBetween magnetic sheet, be provided with the first non-magnetic insulating trip, described the second rotation magnetic conductive disk is provided with along it circumferentially successivelyMultiple the second magnetic conduction sheets that distribute, are provided with the second non-magnetic insulation between every two adjacent the second magnetic conduction sheetsSheet, described the first insulating trip and the second magnetic conduction sheet are oppositely arranged, described the first rotation magnetic conductive disk and the second rotationWhen magnetic conductive disk synchronously rotates, the magnetic field conductively-closed that described the first magnetic conduction sheet covers, through the magnetic of the first insulating tripField direction alternately changes and forms alternating magnetic field and act on the mould on carrying position.
4. the mold heating device based on permanent magnet induction as claimed in claim 3, is characterized in that, described inThe quantity of the first magnetic conduction sheet and the second magnetic conduction sheet is all 6, and described the first rotation magnetic conductive disk and the second rotationThe angle of magnetic conductive disk differs 30 °, to make, the first insulating trip is relative with the second magnetic conduction sheet position, the first magnetic conduction sheet withThe second insulating trip position is relative.
5. the mold heating device based on permanent magnet induction as claimed in claim 4, is characterized in that, described inA the second rotation magnetic conductive disk dorsad side of permanent magnetism mainboard is provided with power coil and magnetic conductive board successively, and described second revolvesTransduction disk rotate time form action of alternating magnetic field in power coil, to make described power coil generation current,This electric current is fed back to an electric power loop through rectification circuit.
6. the mold heating device based on permanent magnet induction as claimed in claim 5, is characterized in that, also bagDraw together six permanent magnetism posts that are arranged in the first rotation magnetic conductive disk and the second rotation magnetic conductive disk, every adjacent two foreverThe N/S of magnetic post is extremely contrary, and described the first rotation magnetic conductive disk and the second rotation magnetic conductive disk outside are provided with six electromagnetismBody, six permanent magnetism posts distribute successively along the edge of the first rotation magnetic conductive disk and the second rotation magnetic conductive disk, and described inBetween permanent magnetism post and permanent magnetism mainboard, have predeterminable range, described electromagnet is corresponding one by one with permanent magnetism post, described electricityMagnet accesses DC voltage and produces S/N magnetic pole, and described electromagnet is electrically connected with drive circuit, described electromagnetismBody includes U-shaped amorphous magnetic conductor and solenoid, and described U-shaped amorphous magnetic conductor is located at the first rotation and leadsDisk and the second rotation magnetic conductive disk, described permanent magnetism post is located between two support arms of U-shaped amorphous magnetic conductor, instituteState U-shaped amorphous magnetic conductor and permanent magnetism intercolumniation exists space, and move to U-shaped amorphous magnetic conduction when a upper permanent magnetism postBetween two support arms of body time, described drive circuit to electromagnet on-load voltage to make between electromagnet and permanent magnetism postProduce active force, in the time that next permanent magnetism post moves between two support arms of U-shaped amorphous magnetic conductor, described drivingCircuit cuts off to make electromagnet moment to produce reverse magnetic pole the voltage that loads on electromagnet, by this reverse magneticThe utmost point and current permanent magnetism post is produced to active force.
7. the mold heating device based on permanent magnet induction as claimed in claim 6, is characterized in that, described inDrive circuit includes impulse controller and switching tube, and the pulse output end of described impulse controller is connected in outClose the control end of pipe, the input/output terminal of described switching tube is connected in dc source after connecting with solenoidBetween both positive and negative polarity, described impulse controller switches on or off by export continuous pulse signal to switching tubeThe voltage of electromagnet, with make electromagnet to permanent magnetism post produce continue thrust, described U-shaped amorphous magnetic conductorArm is to the rotation direction inclination preset angles of the first rotation magnetic conductive disk and the second rotation magnetic conductive disk.
8. the mold heating device based on permanent magnet induction as claimed in claim 7, is characterized in that, described inDrive circuit also includes position detector, and described position detector is for detection of the first rotation magnetic conductive disk andThe position of permanent magnetism post in two rotation magnetic conductive disks, and move to two support arms of U-shaped amorphous magnetic conductor when permanent magnetism postBetween time, described position detector is to impulse controller output signal, described impulse controller is according to this signalAnd the conducting of gauge tap pipe or shutoff.
9. the mold heating device based on permanent magnet induction as claimed in claim 8, is characterized in that, described inPosition detector includes the first infrared tube and the second infrared tube, described the first infrared tube and second redPipe is located at respectively to the first rotation magnetic conductive disk and the second rotation magnetic conductive disk two ends radially outward, described first revolvesOn transduction disk, offer six the first through holes, on described the second rotation magnetic conductive disk, offer six the second through holes,Described the first through hole and the second through hole one by one corresponding and the two be communicated with by fibre pipe, described the first through hole andTwo through holes respectively with six adjacent settings of permanent magnetism post, described the first infrared tube and the second infrared tube infraredLine can pass the first through hole and the second through hole.
10. the mold heating device based on permanent magnet induction as claimed in claim 9, is characterized in that, instituteState permanent magnetism mainboard and be provided with 24 permanent magnets, described permanent magnet is Nd-Fe-B magnetic pole permanent magnet, and described carrying is established on positionThere is the thermal insulation layer that covers at mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029516.5U CN205248928U (en) | 2015-12-10 | 2015-12-10 | Die heating device based on permanent magnetism response |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029516.5U CN205248928U (en) | 2015-12-10 | 2015-12-10 | Die heating device based on permanent magnetism response |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205248928U true CN205248928U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521029516.5U Withdrawn - After Issue CN205248928U (en) | 2015-12-10 | 2015-12-10 | Die heating device based on permanent magnetism response |
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| CN (1) | CN205248928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391198A (en) * | 2015-12-10 | 2016-03-09 | 李振山 | Permanent magnet induction-based die heating device |
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2015
- 2015-12-10 CN CN201521029516.5U patent/CN205248928U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391198A (en) * | 2015-12-10 | 2016-03-09 | 李振山 | Permanent magnet induction-based die heating device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160518 Effective date of abandoning: 20180109 |