CN101742747A - Distributed induction heating system - Google Patents
Distributed induction heating system Download PDFInfo
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- CN101742747A CN101742747A CN200810235017A CN200810235017A CN101742747A CN 101742747 A CN101742747 A CN 101742747A CN 200810235017 A CN200810235017 A CN 200810235017A CN 200810235017 A CN200810235017 A CN 200810235017A CN 101742747 A CN101742747 A CN 101742747A
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Abstract
The invention discloses a distributed induction heating system, implementing a heating method for rapidly heating a moulding mould to the working temperature. The system can generate total working current by a power supply device to enable a plurality of induction heating coils to receive the total working current averagely to generate eddy current on the moulding mould to heat the moulding mould. Each induction heating coil is switched by a breaking control device, and the connection between each induction heating coil and the power supply device can be disconnected or connected separately. Therefore, local region temperature of the moulding mould reaches the working temperature, corresponding induction heating coils can be closed firstly, and the current consumed by the closed induction heating coils can be distributed to other induction heating coils evenly so as to shorten the required time to completely heat the moulding mould to the working temperature.
Description
[technical field]
The present invention is relevant for the heating system of shaping dies, particularly about a kind of distributed induction heating system that quickens heating process and can reduce energy consumption.
[background technology]
Injection molding manufacture procedure mainly comprise two steps: 1, inject the injection raw material of high temperature melting in shaping dies; 2, the temperature of cooling forming mould is to the die sinking temperature.Be injected in the process of shaping mould in injection raw material, injection raw material must flow in the die cavity of shaping dies fully, quickens flowing of injection raw material, and guarantees that injection raw material is to fill up whole die cavity.Therefore, the temperature of injection raw material must be kept higher relatively temperature, with the stickiness of effective reduction liquid injection molding raw material, improves the flowability of injection raw material.Yet shaping dies also can absorb heat, and reduces temperature rapidly when making injection raw material contact shaping dies and slows down flow velocity, even solidify ahead of time and stop up flow path, and cause die cavity to be filled not exclusively.Therefore, injection raw material was injection molding before shaping dies, and shaping dies must be heated to relatively-high temperature, solidified with the shaping dies cooling promptly afterwards of avoiding injection raw material to contact relative low temperature.
Consult Figure 1 and Figure 2, it is the automotive quick-heat system of mould of the prior art, with a load coil 3 heating moulds.This system comprises a male model 1, a master mold 2, reaches load coil 3.Wherein male model 1 and master mold 2 are a shaping dies in order to interosculate, and form a die cavity 4, use for injection raw material to be injected into wherein.Load coil supports with support arm, when needs heating shaping dies, move between male model 1 and the master mold 2, corresponding to die cavity 4, by the insulation tool be embedded at male model 1 and master mold 2 one of them.Load coil produces vortex flow by making metal forming mould surface, and causes the shaping dies heating in order to be passed into an operating current to produce changes of magnetic field.By feeding electric current, can make the shaping dies inner heat, and be heated to higher relatively working temperature to load coil.
The kenel of the die cavity of shaping dies changes, and causes the thick difference of meat of each regional area of shaping dies, so the thermal capacity of each regional area is also different.When the heating shaping dies, the regional area of thermal capacity low relatively (meat is thick less) faster is warming up to required working temperature, and the regional area of thermal capacity high relatively (meat is thick bigger) is warming up to required working temperature more slowly.The slow zone of heating up, the time that causes shaping dies to be heated to working temperature fully increases.Because the maximum current that electric power supply system can provide is a fixed value, therefore, certainly will change electric power supply system more powerful but that cost is higher if will quicken heating process in the mode that promotes size of current.Simultaneously, in the slow heated process of regional area that heats up, during the regional area that has arrived working temperature still continues to be heated, further consumed the extra thermoelectric power that adds.Therefore, in the mode of load coil heating shaping dies, still consumed too much energy and heated in the prior art, and must shorten heating time, do not met and reduce energy loss to reduce the demand of manufacturing cost in the mode that increases electrical power.
[summary of the invention]
In view of the above problems, the invention provides a kind of distributed induction heating system, can quicken the heating process of shaping dies efficiently, and save the needed electric energy of heating.
In order to reach above-mentioned purpose, the invention provides a kind of distributed induction heating system, to working temperature, this system comprises an electric power supply apparatus, several load coils and a control device that opens circuit in order to the temperature of Fast Heating shaping dies.Electric power supply apparatus produces a total work electric current with an external power source, receives total work electric current fifty-fifty for the load coil that is parallel to electric power supply apparatus, with the heating shaping dies.Shaping dies is defined out several regional areas, and each load coil heats different regional areas respectively.The control device that opens circuit connects electric power supply apparatus and each load coil, in order to individually to cut off or being connected of each load coil of conducting and electric power supply apparatus.After the temperatures at localized regions of shaping dies arrives working temperature, corresponding load coil can be closed earlier, and its consumed current is assigned to other load coil fifty-fifty, and then the shortening shaping dies is heated to the needed time of working temperature fully.
The present invention proposes a kind of distributed induction heating method again, at first defines several regional areas on shaping dies, and several load coils are provided, and corresponds respectively to each regional area.Then, provide a total work electric current, be dispensed to each load coil fifty-fifty, heat its pairing regional area respectively by each load coil.When one of them arrives working temperature when each regional area, cut off the operating current that feeds corresponding load coil, and make operating current be dispensed to other load coil, and then quicken the speed of heating of other regional area, shorten shaping dies and be heated to the needed time of working temperature fully.
The present invention proposes a kind of distributed induction heating method in addition, and several regional areas of definition on shaping dies at first, and one heating time of given each regional area are to be heated to working temperature with its temperature.Then, provide several load coils, correspond respectively to each regional area.One total work electric current is provided, is dispensed to each load coil fifty-fifty, heat its pairing regional area respectively by each load coil.In providing after total work electric current goes through each heating time, cut off the operating current that feeds corresponding load coil.After closing each load coil in regular turn, can fully shaping dies be heated to working temperature.
Compared to prior art, the present invention adopts several load coils respectively to the heating of the regional area of the different shaping dies of temperature-raising characteristic, and individually controls the unlatching of each load coil or close, and reduces unnecessary heating power consumption.Simultaneously, also can under the prerequisite that does not promote the gross electric capacity/electric current of always working, promote the heating power/coil current of regional area, and then shorten the needed time of heating.Because needed time of heating shortens, and the gross electric capacity/electric current of always working do not need to increase, and the electric energy that therefore heats the required consumption of shaping dies also is reduced.
[description of drawings]
Fig. 1 is in the prior art, the exploded perspective view of load coil and shaping dies.
Fig. 2 is in the prior art, the exploded perspective view of another kind of load coil and shaping dies.
Fig. 3 is in the first embodiment of the invention, the exploded perspective view of load coil and shaping dies.
Fig. 4 is in the first embodiment of the invention, the load coil of another kenel and the exploded perspective view of shaping dies.
Fig. 5 is in the first embodiment of the invention, the system block diagrams of distributed induction heating system.
Fig. 6 is in the first embodiment of the invention, mould, load coil, mechanical arm, and the system block diagrams of cooling cycle machine.
Fig. 7 is the system block diagrams of the distributed induction heating method in the second embodiment of the invention.
[embodiment]
Consult Fig. 3, Fig. 4, and shown in Figure 5, a kind of distributed induction heating system that it provides for the embodiment of the invention is in order to Fast Heating one shaping dies 90.Distributed induction heating system comprises an electric power supply apparatus 10, open circuit control device 20, and several load coils 30, a main control system 40, an and cooling main frame 50.Distributed induction heating system heats shaping dies 90 before injection raw material is injected into shaping mould 90 in advance, with the temperature that promotes shaping dies 90 to working temperature.The shaping dies 90 that is heated to working temperature avoids the liquid injection molding raw material of melting because of contact shaping dies 90 cooling rapidly, by avoiding causing die cavity to be filled not exclusively, therefore can effectively eliminate in the working of plastics of shaping and fill the incomplete defectives such as hole that cause because of injection raw material because of injection raw material solidifies ahead of time.In addition, the shaping dies 90 of high temperature keeps the flowability of injection raw material, also can shorten the time that injection raw material fills up die cavity fully.
Consult Fig. 3 and shown in Figure 4, shaping dies 90 comprises a male model 91 and a master mold 92, in order to mutual matched moulds to form a die cavity 93.Die cavity 93 is injected into wherein in order to accept injection raw material.Shaping dies 90 is defined out several regional areas, and each regional area is a corresponding load coil 30 respectively.Load coil 30 can be and fixedly installs or movable the setting.Consult shown in Figure 3, it is the load coil 30 that fixedly installs, wherein each load coil 30 is coated by an insulation tool 32, and be fixed on the shaping dies 90 and (be not limited on male model 91 or the master mold 92), make the regional area of each load coil 30 corresponding to mould 90.Consult shown in Figure 4ly, be the load coil 30 that activity is provided with, wherein each load coil 30 is supported on the shaping dies 30 by a mechanical arm 94.After male model 91 and master mold 92 die sinkings and taking out working of plastics, load coil 30 is moved between male model 91 and the master mold 92 by mechanical arm 94, directly die cavity 94 surfaces are heated.For fear of load coil false touch male model 91 or master mold 92, also need to be provided with insulation tool 32 on the load coil 30, be example with Fig. 4, insulation tool 32 is the insulator that is sheathed on load coil 30, but the kenel of insulation tool 32 is not as limit.
Consulting shown in Figure 6ly again, is example with the load coil 30 of activity setting, and the thin bilge construction of load coil 30 is described.Load coil 30 is mainly the hard hollow copper pipe of a spiral, is arranged at the end of mechanical arm 94, carries out two-dimensional directional and moves to be driven by mechanical arm 94, presses close to but does not contact the surface of shaping dies 90.Do not contact shaping dies 90 in order to ensure load coil 30, moving of mechanical arm 94 can be by device controls such as limit switches, after load coil 30 arrives suitable distance, mechanical arm 94 or load coil 30 can contact limit switch, make mechanical arm 94 stop to drive load coil 30 feedings.Load coil 30 hard hollow copper pipes, therefore, the inside of load coil 30 can feed cooling fluids such as water, and its body can conduct electricity and constitutes magnetic field, produces vortex flow to cause shaping dies 90 surface induction magnetic fields.Load coil 30 connects cooling cycle machine 35 and electric power supply apparatus 10 by soft copper conductor 33.Wherein, soft copper conductor 33 is similarly hollow tube, and inner coated insulation layer, enters in the load coil 30 in order to cool off circulator 35 guiding cooling fluids certainly, the body of soft copper conductor 33 then can conduct electricity, and feeds load coil 30 by electric power supply apparatus 10 guiding electric currents.Because load coil 30 must be passed into big electric current with Fast Heating shaping dies 90, so the net sectional area of load coil 30 and soft copper conductor 33 need be enough big, and the beginning can be reduced resistance.And introduce cooling fluids by cooling cycle machine 35, and then avoid load coil 30 and soft copper conductor 33 itself to generate heat because of big electric current, influence electrical characteristic even burn.
Consult Fig. 5 and shown in Figure 6, electric power supply apparatus 10 is connected in external power sources such as industrial alternating current, to obtain an external power.10 pairs of external powers of electric power supply apparatus carry out producing a total work electric current after transformation and the change of current, by the external output services electric current fifty-fifty of several outputs 11.Load coil 30 is parallel to electric power supply apparatus 10, and receives total work electric current fifty-fifty, makes total work electric current be assigned to several operating currents, feeds respectively in each load coil 30.The load coil 30 that feeds operating current produces a magnetic field, makes corresponding regional area surface produce vortex flow, with each regional area of heating shaping dies 90.
The control device 20 that opens circuit comprises several disconnects 21, the two ends of each disconnect 21 be connected to the output 11 of electric power supply apparatus 10 and each load coil 30 one of them, and constitute current circuit.The two ends of each disconnect 21 can switch to path independently or open circuit, and individually cut off or being connected of each load coil 30 of conducting and electric power supply apparatus 10,, and open or close each load coil 30 whether by each load coil 30 with the decision operating current.In addition, each disconnect 21 is connected to main control system 40 respectively, and the switching of main control system 40 each disconnect 21 of control is path or opens circuit with the two ends of switching disconnect 21.Simultaneously, electric power supply apparatus 10 also is connected to main control system 40, and whether switching electric power supply apparatus 10 produces total work electric current.
Consult Fig. 5 and shown in Figure 6 again, be subjected to the kenel variable effect of die cavity 93, the meat of each regional area of shaping dies 90 is thick also inequality, causes the difference of the mean heat capacity of each regional area.The thick less relatively regional area of meat possesses less relatively thermal capacity, therefore, when providing uniform heat flux to shaping dies 90, the thick less relatively regional area 90 of meat has higher relatively heating rate, and arrives shaping dies 90 needed working temperatures ahead of time.In the same manner, the thick higher relatively regional area 95 of meat possesses relatively large thermal capacity, therefore, and when providing uniform heat flux to shaping dies 90, the thick relatively large regional area 90 of meat has relatively low heating rate, is warming up to shaping dies 90 needed working temperatures and delay.
In the first embodiment of the invention, to the different regional area heating of shaping dies 30, each load coil 30 connects electric power supply apparatus 10 by different disconnect 21 to several load coils 30 simultaneously respectively.Each disconnect 21 is switched to path independently or opens circuit, and individually opens or close corresponding load coil 30.Main control system 40 is according to the regional area of each load coil 30 pairing shaping dies 90, and decision is switched disconnect 21 and presented the opportunity of opening circuit, and closes load coil 30.In injection mo(u)lding, before matched moulds injected injection raw material, main control system 40 all disconnects 21 of control earlier switched to path, and the main switch of turns on power feeding mechanism 10, makes 30 pairs of shaping dies 90 of load coil begin heating.After beginning to heat, regional area for the shaping dies 90 that arrives working temperature, main control system 40 cuts off corresponding disconnect 21 to close corresponding load coil 30, and keep other load coil 30 lasting other regional areas and heat shaping dies 90, All Ranges up to shaping dies 90 all arrives working temperature, then cut off all disconnects 21, and close the main switch of electric power supply apparatus 10, with the stop supplies operating current.After shaping dies 90 matched moulds, switch all disconnects 21 in advance and be path (but not the main switch of turns on power feeding mechanism 10), band is finished injection moulding, after working of plastics is taken out in die sinking, the main switch of turns on power feeding mechanism 10 once again, for injection molding operation next time to shaping dies 90 preheatings.Thus,, do not need to continue to expend the required electric energy of heating, and can avoid the too high rotten problem of injection raw material that causes of temperatures at localized regions at the regional area that arrives working temperature.Gross electric capacity/maximum current that electric power supply apparatus 10 is provided is a fixed value, when the electrical power/operating current by single load coil 30 is cut off, its original electrical power/operating current that consumes can be dispersed to the load coil 30 in other running, promote the heat flux of the regional area do not reach working temperature as yet, thereby reduced these regional areas needed heating times.Because needed time of heating shortens, and the gross electric capacity/electric current of always working do not need to increase, and the electric energy that therefore heats shaping dies 90 required consumption also is reduced.
On the opportunity that main control system 40 switches disconnect 21, can take the time control mode.The time control mode in advance at the material of the kenel of shaping dies 90, shaping dies 90, each load coil 30 in total work size of current that heating power, load coil 30 quantity and the electric power supply apparatus 10 of different size of current provides, determine the regional area of each load coil 30 correspondence to arrive the opportunity of working temperature.Each regional area all given heating time just, after main control system 40 arrives heating time in the time that total work electric current feeds each load coil 30, cut off corresponding disconnect 21, to cut off being connected of load coil 30 and electric power supply apparatus 10.After must considering that part load coil 30 is closed aforesaid heating time, the operating current of the load coil 30 during all the other are still opened changes, and all is switched to up to all disconnects 21 and opens circuit.
In order to reach quick injection molded, except rapidly heating moulds 90, also must be after the complete injection moulding mould 90 of injection raw material, but apace cooling forming mould 90 to the die sinking temperature.Therefore, in first embodiment of the invention, the inside of shaping dies 90 is provided with several independently pipelines, corresponding to each load coil 30, in order to feed for cooling fluids such as cooling waters, with the different regional areas of cooling forming mould 90.Similarly, the cooldown rate difference of each regional area of working of plastics shaping dies 90 and injection moulding, and the cooling refrigeration gross power that main frame 50 provided is fixing (minimum temperature and the total flow of cooling water are fixed), so each pipeline can independently be unlocked or close.When shaping dies 90 cools off, when the temperature in local zone to arrive the die sinking temperature, then close corresponding pipeline, with the stop supplies cooling water to this regional area.At this moment, the cooling water flow that pent pipeline consumed, but mean allocation is quickened the cooling in other zone to other pipeline.After the die sinking temperature that shaping dies 90 is lowered the temperature fully, carry confession under directions and answer cooling water.Closing opportunity of pipeline can be taked the time control mode.The time control mode at the quantity of the material of the kenel of shaping dies 90, shaping dies 90, pipeline, and cooling water temperature and total flow, determines each regional area to arrive the opportunity of die sinking temperature in advance.Just each regional area all given cooling time, main control system 40 cuts off corresponding pipeline after arriving the cooling time of each regional area, all is cut off up to all pipelines, and the stop supplies cooling water cools off.
Consult shown in Figure 7, be the disclosed a kind of distributed induction heating system of second embodiment of the invention, its element is formed roughly identical in first embodiment, comprises electric power supply apparatus 10, open circuit control device 20, and several load coils 30, a main control system 40, an and cooling main frame (figure does not show).Second embodiment directly obtains the temperature of each regional area by the mode that actual temperature measures, and whether continues heating or cooling with decision.Therefore, the distributed induction heating system of second embodiment more comprises plurality of temperature inductor 60, for example thermocouple etc.Each temperature inductor 60 is arranged at the regional area that each load coil 30 is heated.Temperature inductor 60 constantly transmits each regional area in heating process temperature is sent to main control system 40, after the temperature of temperature inductor 60 passbacks arrives working temperature, main control system 60 sends control command to corresponding disconnect 21, the two ends of switching disconnect 21 are for opening circuit, with being connected of the load coil 30 that cuts off correspondence and this electric power supply apparatus 10.Similarly, in cooling procedure, the temperature that temperature inductor 60 constantly transmits each regional area is sent to main control system 40, after the temperature of temperature inductor 60 passbacks arrives the die sinking temperature, main control system 60 sends control command to corresponding cooling main frame 50, cuts off corresponding pipeline to stop the cooling to this regional area.
The present invention proposes a kind of distributed induction heating method, in order to the temperature of Fast Heating shaping dies 90 to working temperature, the method then provides several load coils 30 prior to several regional areas of definition on the shaping dies 90, corresponds respectively to each regional area.Wherein, load coil 30 can be moved to corresponding regional area top by mechanical arm 94, or being insulated tool is directly fixed on regional area 30.
Utilize electric power supply apparatus 10 that a total work electric current is provided, be dispensed to each load coil 30 fifty-fifty, make total work electric current be assigned as a plurality of operating currents and feed each load coil 30.The load coil 30 that feeds operating current causes corresponding regional area to produce vortex flow, and the beginning heat local regions makes its intensification.Wherein between electric power supply apparatus 10 and each load coil 30, a disconnect 21 is set, by being path between switching electric power supply apparatus 10 and the load coil 30 or opening circuit.
Can carry out matched moulds to shaping dies 90 with that, and the injection raw material of injection melting is in the die cavity 93 of shaping dies 90.After injection raw material fills up die cavity, shaping dies 90 is cooled off, in the pipeline of shaping dies 90, provide cooling liquids such as cooling water with cooling main frame 50.
Detect the temperature of each regional area, when one of them temperature of local zone is cooled to the die sinking temperature, cut off corresponding pipeline, to stop to feed cooling water.After arbitrary pipeline was cut off, its cooling water flow was dispensed to other pipeline in the unlatching fifty-fifty, continued all the other regional areas of cooling forming mould 90 with higher cooling water flow.
Continue the temperature of each regional area of detecting, and cut off each pipeline, all be cooled to the die sinking temperature up to whole shaping dies 90 according to the detecting result, and till all pipelines all are cut off.
The temperature of shaping dies 90 can die sinking be taken out the working of plastics that is shaped after dropping to the die sinking temperature.
The present invention proposes another kind of distributed induction heating method, and to working temperature, the method is prior to several regional areas of definition on the shaping dies 90 in order to the temperature of Fast Heating shaping dies 90.According to the die cavity kenel of each regional area,, and confirm that each regional area all can arrive working temperature after experience heating time to each regional area given heating time.Wherein die cavity causes the thick big relatively person of meat of regional area, gives this regional area relatively long heating time; Die cavity causes the thick relatively little person of the meat of regional area, gives this regional area relatively short heating time.
Several load coils then are provided, correspond respectively to each regional area.Wherein, load coil 30 can be moved on the corresponding regional area by mechanical arm 94, or being insulated tool 32 is directly fixed on regional area.
Utilize electric power supply apparatus 10 that total work electric current is provided, feed total work electric current, make total work electric current be assigned as a plurality of operating currents and feed each load coil 30 to each load coil 30.The load coil 30 that feeds operating current causes corresponding regional area to produce vortex flow, and begins the regional area heat temperature raising.Wherein between electric power supply apparatus 10 and each load coil 30, a disconnect 21 is set, by being path between switching electric power supply apparatus 10 and the load coil 30 or opening circuit.
After beginning to provide total work electric current, electric power supply apparatus 10 begins to calculate heating time, provide the time of total work power supply to arrive after the heating time of each regional area, cut off the operating current that feeds corresponding load coil 30 with disconnect 21, and close corresponding load coil 30.Close each load coil 30 in regular turn according to the setting of heating time, till all load coils 30 are closed.
Can carry out matched moulds to shaping dies 90 with that, and the injection raw material of injection melting is in the die cavity of shaping dies 90.
After injection raw material fills up die cavity, shaping dies 90 is cooled off, in the pipeline of shaping dies 90, provide cooling liquids such as cooling water with cooling main frame 50.
According to the quantity of the material of the kenel of shaping dies 90, shaping dies 90, pipeline, and cooling water temperature and total flow, each regional area all given cooling time, after main control system 40 arrived the cooling time of each regional area, cut off corresponding pipeline, all be cut off up to all pipelines, the stop supplies cooling water cools off.After arbitrary pipeline was cut off, its cooling water flow was dispensed to other pipeline in the unlatching fifty-fifty, continued all the other regional areas of cooling forming mould 90 with higher cooling water flow.
Continue the temperature of each regional area of detecting, and cut off each pipeline, all be cooled to the die sinking temperature up to whole shaping dies 90 according to the detecting result, and till all pipelines all are cut off.
The temperature of shaping dies 90 drops to after the die sinking temperature, can die sinking take out the working of plastics that is shaped.
Claims (16)
1. distributed induction heating system, temperature to a working temperature in order to Fast Heating one shaping dies is characterized in that it comprises:
One electric power supply apparatus produces a total work electric current;
Several load coils, be parallel to this electric power supply apparatus and receive the electric current of always to work fifty-fifty, to heat this shaping dies, wherein this shaping dies is defined out several regional areas, and respectively this load coil heat respectively these regional areas one of them;
One control device that opens circuit connects this electric power supply apparatus and this load coil respectively, individually cuts off or conducting being connected of this load coil and this electric power supply apparatus respectively.
2. distributed induction heating system as claimed in claim 1 is characterized in that, respectively this load coil is coated by an insulation tool, and is fixed in this shaping dies.
3. distributed induction heating system as claimed in claim 1 is characterized in that, respectively this load coil respectively by a mechanical arm to this shaping dies.
4. distributed induction heating system as claimed in claim 1 is characterized in that, respectively this load coil is the hard hollow copper pipe of a spiral.
5. distributed induction heating system as claimed in claim 4 is characterized in that, respectively this load coil connects this electric power supply apparatus by a soft copper conductor.
6. distributed induction heating system as claimed in claim 4 is characterized in that, respectively this soft copper conductor is a hollow tube, and inner coated insulation layer, enters respectively this load coil in order to the guiding cooling fluid.
7. distributed induction heating system as claimed in claim 1 is characterized in that, the described control device that opens circuit comprises several disconnects, respectively the two ends of this disconnect connect respectively this electric power supply apparatus and these load coils wherein one.
8. distributed induction heating system as claimed in claim 7 is characterized in that it also comprises a main control system, the respectively switching of this disconnect of control, and switching respectively, the two ends of this disconnect are path or open circuit.One main control system.
9. distributed induction heating system as claimed in claim 8, it is characterized in that, this regional area given heating time respectively, this main control system in this regional area respectively be heated arrive this heating time after, the two ends of switching corresponding disconnect are for opening circuit, and cut off the load coil of correspondence and being connected of this electric power supply apparatus.
10. distributed induction heating system as claimed in claim 8, it is characterized in that, described main control system is after respectively this regional area arrives this working temperature, and the two ends of switching corresponding disconnect are for opening circuit, and cuts off the load coil of correspondence and being connected of this electric power supply apparatus.
11. distributed induction heating system as claimed in claim 10 is characterized in that, it also comprises the plurality of temperature inductor, is arranged at the regional area that respectively this load coil heated respectively, transmits temperature to this main control system.
12. distributed induction heating system as claimed in claim 8 is characterized in that, it also contains several independently pipelines, is arranged in this shaping dies, corresponding to this load coil respectively, in order to feed for cooling fluid, to cool off this shaping dies.
13. distributed induction heating system as claimed in claim 12 is characterized in that, respectively this regional area all given cooling time, this main control system cuts off corresponding pipeline after respectively arriving the cooling time of this regional area.
14. distributed induction heating system as claimed in claim 12 is characterized in that, this main control system cuts off corresponding pipeline after respectively this regional area arrives a die sinking temperature.
15. a distributed induction heating method in order to Fast Heating one shaping dies, is characterized in that it comprises the following step:
Several regional areas of definition on this shaping dies, and one heating time of given respectively this regional area;
Several load coils are provided, correspond respectively to respectively this regional area;
One total work electric current is provided, is dispensed to respectively this load coil fifty-fifty, heat its pairing regional area respectively by this load coil respectively;
Should cut off the operating current that feeds corresponding load coil after heating time in providing total work electric current to arrive respectively.
16. a distributed induction heating method, temperature to a working temperature in order to Fast Heating one shaping dies is characterized in that it comprises the following step;
Several regional areas of definition on this shaping dies, and several load coils are provided, correspond respectively to respectively this regional area;
One total work electric current is provided, is dispensed to respectively this load coil fifty-fifty, heat its pairing regional area respectively by this load coil respectively;
The detecting temperature of this regional area respectively when one of them arrives working temperature when this regional area respectively, is cut off the operating current that feeds corresponding load coil.
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| CN200810235017XA CN101742747B (en) | 2008-11-12 | 2008-11-12 | Distributed induction heating system |
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| CN200810235017XA CN101742747B (en) | 2008-11-12 | 2008-11-12 | Distributed induction heating system |
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| CN101742747B CN101742747B (en) | 2012-07-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2431151A3 (en) * | 2010-09-17 | 2012-05-30 | Honda Motor Co., Ltd. | Molding apparatus and method |
| CN103372954A (en) * | 2012-04-13 | 2013-10-30 | 通用汽车环球科技运作有限责任公司 | Injection molding tool with embedded induction heater |
| CN106466695A (en) * | 2015-08-20 | 2017-03-01 | 福特汽车公司 | Optionally soften the method and system of hot stamping part by sensing heating |
| CN108687329A (en) * | 2018-08-13 | 2018-10-23 | 华南理工大学广州学院 | Has the casting device of temperature control core |
-
2008
- 2008-11-12 CN CN200810235017XA patent/CN101742747B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2431151A3 (en) * | 2010-09-17 | 2012-05-30 | Honda Motor Co., Ltd. | Molding apparatus and method |
| CN103372954A (en) * | 2012-04-13 | 2013-10-30 | 通用汽车环球科技运作有限责任公司 | Injection molding tool with embedded induction heater |
| US9085106B2 (en) | 2012-04-13 | 2015-07-21 | GM Global Technology Operations LLC | Method of embedding an induction heating element into an injection molding tool |
| CN103372954B (en) * | 2012-04-13 | 2016-08-03 | 通用汽车环球科技运作有限责任公司 | There is the injection molding tooling of embedded sensing heater |
| CN106466695A (en) * | 2015-08-20 | 2017-03-01 | 福特汽车公司 | Optionally soften the method and system of hot stamping part by sensing heating |
| US10308992B2 (en) | 2015-08-20 | 2019-06-04 | Ford Motor Company | Method and system for selectively softening hot stamped parts by induction heating |
| CN108687329A (en) * | 2018-08-13 | 2018-10-23 | 华南理工大学广州学院 | Has the casting device of temperature control core |
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| Publication number | Publication date |
|---|---|
| CN101742747B (en) | 2012-07-04 |
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