CN101610614B - Die temperature control device and control method - Google Patents
Die temperature control device and control method Download PDFInfo
- Publication number
- CN101610614B CN101610614B CN2009100411489A CN200910041148A CN101610614B CN 101610614 B CN101610614 B CN 101610614B CN 2009100411489 A CN2009100411489 A CN 2009100411489A CN 200910041148 A CN200910041148 A CN 200910041148A CN 101610614 B CN101610614 B CN 101610614B
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- heat conduction
- induction coil
- solid bar
- cooling
- temperature control
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Abstract
The invention discloses a die temperature control device comprising an induction current generator and an insulating induction coil, wherein the induction coil is electrically connected with the induction current generator. The die temperature control device also comprises a heat conducting solid rod, a heat conducting solid rod cooling device and an induction coil fixing device; the heat conducting solid rod passes through the conduction coil and extends into a die needed to be heated; and the induction coil is installed outside the die and internally provided with a first cooling liquid passage. A control method of the die temperature control device comprises the following steps: always leading cooling liquid into the induction coil, parting a moving die from a fixed die, demoulding a product and pouring the product into the cooling liquid, heating the heat conducting solid rod, closing the moving die and the fixed die, injecting the product, then stopping heating when the conduction coil is powered down, and pouring the cooling liquid into the heat conducting solid rod cooling device so that the product is cooled and formed. The die temperature control device works in such a cycle way. The invention has the advantages of precise temperature control, easy realization of rapid cooling and heating, easy realized working requirement that the temperature of the die ranges from 80 DEG C to 500 DEG C when the die is at high temperature.
Description
Technical field
The present invention relates to a kind of die temperature control device and control method, particularly relate to die temperature control device and the mold temperature control method of controlling mold temperature on a kind of injection or the Die casting machine, through induction coil heating heat conduction solid bar mode.
Background technology
Existing die temperature control device generally adopts heating wire to add hot water or fluid body heat conduction media, flows into heating mould in the mould then.Wherein water heat conduction media can only be heated to 100 ℃ in principle, and oily heat conduction media can only be heated to 200 ℃ in principle, and the heat that this mode of heating liquid thermal conductivity media can carry seldom.Temperature needs the cycle alternation of rapid heating and cooling during the mold injects shaping work; Injection material according to different is confirmed mold temperature; Temperature requirement during mould high temperature is between 80 ℃ to 500 ℃; And water heat conduction media is heated to 100 ℃ and the oily heat conduction media mold heated to 80 that entrained heat will be made the huge steel of heat dissipation when being heated to 200 ℃ ℃ between 500 ℃, is difficult to reach requirement.What degrees centigrade high energy is heated to so technical parameter of being sold on the market at present that die heater indicated or sales promotion parameter all be emphasical liquid thermal conductivity media, can be heated to what degrees centigrade and painstakingly avoid mold temperature.And because the product size shape of moulding is widely different; Cause mould volume shape difference very big; Cause heat consumption to differ greatly, it is also variant to heat the mold temperature that arrives behind the mould of the liquid thermal conductivity media inflow different volumes of uniform temp, even difference is very big.The existing this liquid thermal conductivity media heated mold temperature control equipment that utilizes requires the automatic adjusting to the accurate mould temperature definite value of the mould condition of high temperature in the time of will realizing precise forming, be difficult to reach requirement.
Adopt the die temperature control device of resistance heating mode in the prior art in addition; The shortcoming of this device is both to have needed resistor rod and mould insulation; Need resistor rod and mould heat conduction again; Therefore this resistance heating mode cost is high, the life-span is short, it is dangerous to be prone to that electric leakage takes place, and the logical cooling water of resistor rod is inconvenient, is difficult to realize that chilling and anxious heat, efficient are low.
The patent No. is 200710026536.0 utility model patent, discloses a kind of device of induction type heating mould, and it is mainly used in the make-up machine; This device mainly comprises a mould and a heating unit; Wherein, said mould is arranged on the make-up machine, in order to injection mo(u)lding; Again; Said heating unit can stretch in the die cavity of above-mentioned mould die cavity is carried out Fast Heating; And the magnetic line of force that this heating unit utilizes a heater coil to feed the generation of frequency conversion electric current concentrates on the mould, because the induction effect of electromagnetism produces vortex current; Mould then because of metal impedance itself by Fast Heating, treat that this mold heated is to a certain degree and carry out injection mo(u)lding.Want heating unit can be stretched in the die cavity of above-mentioned mould die cavity is carried out Fast Heating, because electromagnetic induction heating can only be that the heat conduction solid bar in the induction coil is heated, the metal outer to electromagnetic induction coil can't heat.The die cavity of this patent places outside the electromagnetic induction coil, so this patent wants that heating unit can be stretched in the die cavity of above-mentioned mould the mode that die cavity is carried out Fast Heating can't be realized.
Summary of the invention
First purpose of the present invention is to provide a kind of temperature control to realize chilling and die temperature control device suddenly hot, the job requirement of temperature between 80 ℃ to 500 ℃ when realizing mould high temperature easily accurately, easily.
Second purpose of the present invention is to provide a kind of temperature control to realize chilling and mold temperature control method suddenly hot, the job requirement of temperature between 80 ℃ to 500 ℃ when realizing mould high temperature easily accurately, easily.
A kind of die temperature control device comprises induced current generator, conduction induction coil, and induction coil is electrically connected with the induced current generator, also comprises heat conduction solid bar, heat conduction solid bar cooling device, the induction coil fixture; The heat conduction solid bar is passed induction coil and is stretched into and needs in the heated mold; Induction coil is installed in outside the mould, and induction coil is the hollow pipe that is provided with first cooling passage, and induction coil one end is first to advance the cooling fluid mouth, and the other end is first to go out the cooling fluid mouth.
Owing to adopt electromagnetic induction heating heat conduction solid bar; Its advantage first is that the temperature of heat conduction solid bar can be heated to higher temperature as required; Even can be heated to several thousand degrees centigrade, the job requirement of temperature between 80 ℃ to 500 ℃ in the time of can satisfying mould high temperature fully; The secondth, temperature control is to make the formed product quality good accurately; The 3rd is owing to adopted heat conduction solid bar cooling device, heat conduction solid bar can realize Fast Heating and fast cooling, thereby can realize the Fast Heating of mould and cooling fast; The 4th is that the heat conduction solid bar does not need seal outward, low, the long service life of cost; The 5th is in induction coil, to be connected with cooling fluid all the time, makes induction coil always remain on a lower temperature, safe in utilization.The heat conduction solid bar is generally goed deep in the cover half.The heat conduction solid bar is goed deep in the dynamic model under the situation of upside-down mounting mould, and the corresponding part of temperature control equipment is installed on the dynamic model.
As improvement, also comprise the heat conduction solid bar fixture that is installed on the mould; Heat conduction solid bar cooling device comprises second cooling passage that is arranged in the heat conduction solid bar fixture, and what be communicated with second cooling passage second advances cooling fluid mouth and second and go out the cooling fluid mouth; Heat conduction solid bar one end stretches in second cooling passage and is fixed on the heat conduction solid bar fixture, and the other end passes induction coil and stretches into and need in the heated mold.
The heat conduction solid bar is concentrated and is fixed in the heat conduction solid bar fixture, and links to each other with the cooling passage of heat conduction solid bar fixture, heat conduction solid bar convenient fixing, and heat conduction solid bar cooling device is simple.
As further improvement, above second cooling passage, be provided with the pore that is in communication with the outside, be convenient to the hot steam in second cooling passage is got rid of, avoid the hypertonia in second cooling passage.
As improvement, the induction coil fixture comprises two fixed blocks, and two fixed blocks are separately fixed at the both sides of heat conduction solid bar fixture, and induction coil is clamped and fixed between two fixed blocks.The fixture of this induction coil is simple, the induction coil convenient fixing.
As the improvement of another mode, the heat conduction solid bar is a hollow pipe, and heat conduction solid bar cooling device comprises the 3rd cooling passage that is arranged in the heat conduction solid bar, and what be communicated with the 3rd cooling passage the 3rd advances cooling fluid mouth and the 3rd and go out the cooling fluid mouth.Directly in the heat conduction solid bar, be provided with cooling passage, make heat conduction solid bar cooling effect better, heat conduction solid bar and mould molding face more are prone to realize chilling and anxious heat.
As the improvement of another kind of mode, the heat conduction solid bar is 0.5-50mm from the distance of mould molding face.This distance can improve heat utilization efficiency, avoids too much heat to dissipate from the surface of mould.
As the common improvement of such scheme, also be provided with the temperature inductor of induced dies temperature at the mould part that the heat conduction solid bar is installed.
Temperature inductor comprises infrared temperature inductor, temperature sensor etc.Temperature inductor can be arranged on the outer surface of mould, also can go deep into interior certain position near die cavity of mould.Through the temperature of certain position of temperature inductor induced dies, and then the temperature of definite mold cavity, can make the temperature control of mold cavity very accurate.
Common improvement as such scheme is provided with PCU Power Conditioning Unit on the induced current generator; Be provided with the temperature inductor of induced dies temperature at the mould part that the heat conduction solid bar is installed; Also be provided with induction dynamic model and cover half and divide the signalling of mould and mold closing operating state.
Through temperature inductor, signalling come to regulate automatically the induced current generator power, divide mould and mold closing, the heating of heat conduction solid bar and stop, the injection of cooling fluid and stop etc.Temperature inductor comprises infrared temperature inductor, temperature sensor etc.Temperature inductor can be arranged on the outer surface of mould, also can go deep into interior certain position near die cavity of mould.Through the temperature of certain position of temperature inductor induced dies, and then the temperature of definite mold cavity, can make the temperature control of mold cavity very accurate.Signalling comprises near switch, mechanical switch, and photoelectric sensor switch, and be installed on fixture on mould or the machine etc. to switch.
A kind of control method of mold temperature in whole forming process, is connected with cooling fluid all the time in the induction coil; Dynamic model and cover half divide mould; Product stripping stops after the demoulding injecting cooling fluid in the guide hot solids rod cooling device, and induction coil energising heating heat conduction solid bar, dynamic model and cover half begin closure; After the product injection is accomplished; The induction coil outage stops to heat the heat conduction solid bar, injects cooling fluid in the guide hot solids rod cooling device simultaneously, makes the product cooling forming; So periodic duty.During moulding, be connected with cooling fluid in the induction coil all the time and make induction coil always keep a lower temperature.Above-mentioned mold temperature control method just has higher temperature during the moulding of product start injection, the requirement of chilling and anxious hot alternate made the quality of shaped article good when the intensification of mould and cooling can be satisfied formed product well.
A kind of control method of mold temperature in whole forming process, is connected with cooling fluid all the time in the induction coil; Comprise that dynamic model and cover half divide mould, product stripping stops to inject in the guide hot solids rod cooling device cooling fluid, induction coil energising heating heat conduction solid bar, dynamic model and cover half and begins closure after the demoulding, and the heat conduction solid bar is heated to design temperature and stops heating; Inject cooling fluid in the guide hot solids rod cooling device after the formed product and make the product cooling forming; So periodic duty.During moulding, be connected with cooling fluid in the induction coil all the time and make induction coil always keep a lower temperature.。Above-mentioned mold temperature control method just has higher temperature during the moulding of product start injection, the requirement of chilling and anxious hot alternate made the quality of shaped article good when the intensification of mould and cooling can be satisfied formed product well.Mold heated stops heating to design temperature or delay adjustments after the time, can satisfy the temperature needs of different product.
Description of drawings
Fig. 1 is the perspective exploded view of embodiments of the invention 1.
Fig. 2 is the generalized section of the embodiment of the invention 1.
Fig. 3 is the perspective exploded view of embodiments of the invention 2.
Fig. 4 is the generalized section of the embodiment of the invention 2.
Embodiment
Like figure, shown in Figure 2, a kind of die temperature control device comprises induced current generator 1, conduction induction coil 2, heat conductive rubber rod 3, is installed in copper rod fixture 4, copper rod cooling device on the cover half 17, induction coil fixture; Induction coil 2 is electrically connected with induced current generator 1; Heat conductive rubber rod 3 passes induction coil 2 and stretches in the cover half that needs heating; Induction coil 2 is installed in outside the cover half 17, and induction coil 2 is for being provided with the hollow pipe (not shown) of first cooling passage, and an end of induction coil 2 is for advancing the first cooling fluid mouth 5, and the other end is first to go out cooling fluid mouth 6.
The induction coil fixture comprises fixed block 14, fixed block 15, and fixed block 14, fixed block 15 are separately fixed at the both sides of copper rod fixture 4, and induction coil 2 is clamped and fixed in 15 of fixed block 14, fixed blocks.
Also be provided with the temperature inductor 16 of induced dies temperature in the cover half part that heat conductive rubber rod 3 is installed, temperature inductor 16 is arranged on the outer surface of mould.
Like Fig. 3, shown in Figure 4; Different with embodiment 1 is; The heat conduction solid bar is a copper rod 20; The copper rod cooling device comprises the 3rd cooling passage 21 that is arranged in the copper rod 20, and what be communicated with the 3rd cooling passage 21 the 3rd advances cooling fluid mouth 22 and the 3rd and go out cooling fluid mouth 23, the three cooling liquid outlets 23 and be communicated with second cooling passage 8.Copper rod 20 is 0.5mm from the distance of mould molding face.
On induced current generator 1, be provided with PCU Power Conditioning Unit.Be provided with the temperature inductor 24 of induced dies temperature at the mould part that copper rod 20 is installed, temperature inductor 24 gos deep in the mould near the die cavity (not shown).On the die joint of mould cover half, be provided with induction cover half and cover half and divide the signaling switch of mould and mold closing operating state, signaling switch is near switch 25.
Like Fig. 1, shown in Figure 2, die temperature control device is identical with embodiment 1, and the control method of mold temperature comprises: in whole forming process, be connected with cooling fluid all the time in first cooling passage of induction coil 2; After formed product was accomplished, dynamic model 18 and 17 fens moulds of cover half were after the branch mould is accomplished; Product stripping stops after the demoulding in second cooling passage 8, injecting cooling fluid, and the heat conductive rubbers of induction coil 2 energisings heating the simultaneously rod 3, dynamic model 18 and cover half 17 beginnings are closed; Dynamic model 18 has been heated to than higher temperature with the closed fully back of cover half 17 cover half 17, during the product injection, continues energising heating heat conductive rubber rod 3; After product injection moulding is accomplished; Induction coil 2 outages stopping to heat heat conductive rubber rod 3 injects cooling fluid to second cooling passage 8 simultaneously, makes the product cooling forming; So periodic duty.
Like Fig. 3, shown in Figure 4, die temperature control device is identical with embodiment 2, and the control method of mold temperature comprises: in whole forming process, be connected with cooling fluid in the induction coil 2 all the time; After formed product was accomplished, dynamic model 18 and 17 fens moulds of cover half were after the branch mould is accomplished; Product stripping; Stop after the demoulding in the 3rd cooling passage 21, injecting cooling fluid, induction coil 2 energising heating copper rods 20, dynamic model 18 and cover half 17 beginnings simultaneously are closed, and dynamic model 18 has been heated to than higher temperature with the closed fully back of cover half 17 cover half 17; During the product injection, copper rod 20 is heated to design temperature to be stopped heating or stops heating according to need with the delay adjustments time; In the 3rd cooling passage 21, inject cooling fluid after the formed product, make the product cooling forming; So periodic duty.
Claims (10)
1. a die temperature control device comprises induced current generator, conduction induction coil, and induction coil is electrically connected with the induced current generator, it is characterized in that: also comprise heat conduction solid bar, heat conduction solid bar cooling device, the induction coil fixture; The heat conduction solid bar is passed induction coil and is stretched into and needs in the heated mold; Induction coil is installed in outside the mould, and induction coil is the hollow pipe that is provided with first cooling passage, and induction coil one end is first to advance the cooling fluid mouth, and the other end is first to go out the cooling fluid mouth.
2. a kind of die temperature control device as claimed in claim 1 is characterized in that: also comprise the heat conduction solid bar fixture that is installed on the mould; Heat conduction solid bar cooling device comprises second cooling passage that is arranged in the heat conduction solid bar fixture, and what be communicated with second cooling passage second advances cooling fluid mouth and second and go out the cooling fluid mouth; Heat conduction solid bar one end stretches in second cooling passage and is fixed on the heat conduction solid bar fixture, and the other end passes induction coil and stretches into and need in the heated mold.
3. a kind of die temperature control device as claimed in claim 2 is characterized in that: above second cooling passage, be provided with the pore that is in communication with the outside.
4. a kind of die temperature control device as claimed in claim 2; It is characterized in that: the induction coil fixture comprises two fixed blocks; Two fixed blocks are separately fixed at the both sides of heat conduction solid bar fixture, and induction coil is clamped and fixed between two fixed blocks.
5. a kind of die temperature control device as claimed in claim 1; It is characterized in that: the heat conduction solid bar is a hollow pipe; Heat conduction solid bar cooling device comprises the 3rd cooling passage that is arranged in the heat conduction solid bar, and what be communicated with the 3rd cooling passage the 3rd advances cooling fluid mouth and the 3rd and go out the cooling fluid mouth.
6. a kind of die temperature control device as claimed in claim 1 is characterized in that: the heat conduction solid bar is 0.5-50mm from the distance of mould molding face.
7. like any described a kind of die temperature control device of claim 1 to 6, it is characterized in that: the temperature inductor that also is provided with the induced dies temperature at the mould part that the heat conduction solid bar is installed.
8. like any described a kind of die temperature control device of claim 1 to 6, it is characterized in that: on the induced current generator, be provided with PCU Power Conditioning Unit; Be provided with the temperature inductor of induced dies temperature at the mould part that the heat conduction solid bar is installed; Also be provided with induction dynamic model, the branch mould of cover half and the signalling of mold closing operating state.
9. a control method that has like any described die temperature control device of claim 1 to 6 is characterized in that comprising: in whole forming process, be connected with cooling fluid in the induction coil all the time; Dynamic model and cover half divide mould, and product stripping stops after the demoulding injecting cooling fluid in the guide hot solids rod cooling device; Induction coil energising heating heat conduction solid bar; Dynamic model and cover half begin closure, and after the product injection was accomplished, the induction coil outage stopped to heat the heat conduction solid bar; Inject cooling fluid in the guide hot solids rod cooling device simultaneously, make the product cooling forming; So periodic duty.
10. a control method that has like any described die temperature control device of claim 1 to 6 is characterized in that comprising: in whole forming process, be connected with cooling fluid in the induction coil all the time; Dynamic model and cover half divide mould, and product stripping stops to inject in the guide hot solids rod cooling device cooling fluid, induction coil energising heating heat conduction solid bar after the demoulding, and dynamic model and cover half begin closure, and the heat conduction solid bar is heated to design temperature and stops heating; Inject cooling fluid in the guide hot solids rod cooling device after the formed product and make the product cooling forming; So periodic duty.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100411489A CN101610614B (en) | 2009-07-15 | 2009-07-15 | Die temperature control device and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100411489A CN101610614B (en) | 2009-07-15 | 2009-07-15 | Die temperature control device and control method |
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| CN101610614A CN101610614A (en) | 2009-12-23 |
| CN101610614B true CN101610614B (en) | 2012-06-20 |
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| CN2009100411489A Expired - Fee Related CN101610614B (en) | 2009-07-15 | 2009-07-15 | Die temperature control device and control method |
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| CN101927335B (en) * | 2010-08-06 | 2012-08-22 | 清华大学 | Mold capable of measuring internal temperature of castings directly in extrusion casting process |
| CN102404888A (en) * | 2010-09-14 | 2012-04-04 | 吴江市东方铝业有限公司 | Aluminium profile fixture heating device |
| CN102476437A (en) * | 2010-11-29 | 2012-05-30 | 西安康瑞矿用设备有限公司 | Die temperature controller with cold/hot temperature switching function |
| CN102886506A (en) * | 2012-10-30 | 2013-01-23 | 常州华晨铸造有限公司 | Die for improving mechanical property of magnesium alloy casting |
| CN105291389A (en) * | 2014-06-25 | 2016-02-03 | 上海积健精密机械有限公司 | Infrared radiation heating equipment and method applied to high-gloss injection molding |
| JP6624478B2 (en) * | 2016-09-05 | 2019-12-25 | パナソニックＩｐマネジメント株式会社 | Cooling block and runnerless injection molding equipment |
| FR3057487B3 (en) * | 2016-10-19 | 2018-12-07 | Roctool | METHOD AND DEVICE FOR CONSOLIDATION OF A TEXTILE PREFORM AND OVERMOLDING |
| CN106735060A (en) * | 2016-12-21 | 2017-05-31 | 宁波市北仑怡健模具制造有限公司 | It is a kind of to prevent mould from cracking and easily take off the die casting of part |
| FR3070297B1 (en) * | 2017-08-31 | 2020-10-09 | Faurecia Interieur Ind | MOLD PART AND MOLD INCLUDING SUCH A MOLD PART |
| CN113199716B (en) * | 2021-04-07 | 2022-07-01 | 温岭市钢锋模具有限公司 | Leakage self-alarming type injection mold cooling system |
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| CN1183073A (en) * | 1995-03-22 | 1998-05-27 | 大宇电子株式会社 | Apparatus for heating a mold for an injection molding system |
| CN101214738A (en) * | 2008-01-14 | 2008-07-09 | 友达光电股份有限公司 | Hot pressing equipment and hot pressing device thereof |
| CN101229676A (en) * | 2007-01-26 | 2008-07-30 | 佛山市顺德区汉达精密电子科技有限公司 | Equipment of induction type heating mould |
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2009
- 2009-07-15 CN CN2009100411489A patent/CN101610614B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183073A (en) * | 1995-03-22 | 1998-05-27 | 大宇电子株式会社 | Apparatus for heating a mold for an injection molding system |
| CN101229676A (en) * | 2007-01-26 | 2008-07-30 | 佛山市顺德区汉达精密电子科技有限公司 | Equipment of induction type heating mould |
| CN101214738A (en) * | 2008-01-14 | 2008-07-09 | 友达光电股份有限公司 | Hot pressing equipment and hot pressing device thereof |
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| CN101610614A (en) | 2009-12-23 |
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Application publication date: 20091223 Assignee: Guangzhou CCM Electrical Appliance Co., Ltd. Assignor: Yang Dongzuo Contract record no.: 2013440000109 Denomination of invention: Die temperature control device and control method Granted publication date: 20120620 License type: Exclusive License Record date: 20130321 |
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