CN101965073A - Electromagnetic induction heating system of plastic machine - Google Patents
Electromagnetic induction heating system of plastic machine Download PDFInfo
- Publication number
- CN101965073A CN101965073A CN 201010280602 CN201010280602A CN101965073A CN 101965073 A CN101965073 A CN 101965073A CN 201010280602 CN201010280602 CN 201010280602 CN 201010280602 A CN201010280602 A CN 201010280602A CN 101965073 A CN101965073 A CN 101965073A
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- Prior art keywords
- electromagnetic induction
- induction heating
- circuit
- molding machine
- heating system
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Abstract
The invention discloses an electromagnetic induction heating system of a plastic machine with high heat efficiency and high heating speed. The system comprises an electromagnetic induction heating power supply and a heating induction coil connected with the output end of the electromagnetic induction heating power supply, wherein the heating induction coil is sleeved on a metal charging material barrel of the plastic machine. The metal charging material barrel generates heat per se by electromagnetic induction so as to greatly improve the heat efficiency and solve the problem which is expected to be solved for a long term but is not solved; a heat insulation material is wrapped on the metal charging material barrel to reduce heat loss so as to further improve the heat efficiency, the heat efficiency generally can reach over 96 percent, and the power-saving effect is very remarkable and can reach over 30 percent; and the heating speed can be improved by 60 percent, and the pre-heating time is greatly saved.
Description
Technical field
The present invention relates to electromagnetic induction heating system, refer more particularly to the application of electromagnetic induction heating on molding machine.
Background technology
At present, be installed in the heating system on the molding machine barrel, what adopt usually is the resistance wire mode of heating, and promptly Electrothermal ring is made of resistance wire, and the heat that the Electrothermal ring heating is produced conducts on the barrel by the mode of conduction.This resistance wire mode of heating, have only the heat of Electrothermal ring inboard to be transmitted on the barrel, the heat major part in the outside is scattered in the air, and the heat efficiency is lower, the airborne heat that scatters also can cause the rising of ambient temperature, has influence on the comfort level of operating environment; In addition, it is exactly that power density is low that the resistance wire heating also has a shortcoming, and programming rate is slower, needs long warm-up time usually.
Summary of the invention
Technical problem to be solved by this invention is: the molding machine that a kind of heat efficiency is higher, programming rate is fast electromagnetic induction heating system is provided.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: the molding machine electromagnetic induction heating system, comprise: electromagnetic induction heating power supply is enclosed within on the metal barrel of molding machine with the heat induced coil that links to each other with the output of electromagnetic induction heating power supply, described heat induced coil.
Another technical problem to be solved by this invention is: the molding machine electromagnetic induction heating system that a kind of high insulating effect is provided.
For solving another above-mentioned technical problem, the technical solution adopted in the present invention is: described metal barrel is provided with insulating.
Described electromagnetic induction heating power supply comprises: control circuit, rectification circuit, inverse changing driving circuit, inverter circuit, radiator, output circuit and be used to cool off the cooling system of inverter circuit, pressure sensor is installed on the cooling system, radiator is provided with temperature sensor, and the electric contact of temperature sensor and pressure sensor links to each other with control circuit.
Described inverter circuit is a full bridge inverter, comprise two groups totally four IGBT constitute former and later two brachium pontis, these four IGBT are installed on the described radiator.
Be provided with voltage detecting circuit between the collector electrode of described IGBT and the emitter.
The invention has the beneficial effects as follows: the present invention passes through electromagnetic induction, make metal barrel self-heating, improved the heat efficiency greatly, thereby solved people wants to solve and an open question for a long time always, also reduce thermal loss by parcel heat-insulation and heat-preservation material on the metal barrel, further improved the heat efficiency, the heat efficiency can reach more than 96% usually, power savings is very remarkable, can reach more than 30%; And, rise thermal velocity and can improve 60%, saved warm-up time greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, metal barrel, 2, insulating, 3, the heat induced coil.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 1, molding machine electromagnetic induction heating system of the present invention, comprise: electromagnetic induction heating power supply and the heat induced coil 3 that links to each other with the output of electromagnetic induction heating power supply, the external packets of the metal barrel 1 of molding machine is wrapped with insulating 2, and described heat induced coil 3 is enclosed within the outside of the insulating 2 of metal barrel 1 outside; In the present embodiment, described electromagnetic induction heating power supply comprises: mainly by phase-control circuit, the control circuit that pulse-width modulation (PWM) control circuit and protective circuit constitute, three-phase bridge rectification circuit, the main filter circuit that constitutes by reactor and capacitor, inverse changing driving circuit, inverter circuit, radiator, mainly output circuit that constitutes by power transformer and the cooling system that is used to cool off inverter circuit, the output of output circuit is the output of electromagnetic induction heating power supply, pressure sensor is installed on the cooling system, radiator is provided with temperature sensor, and the electric contact of temperature sensor and pressure sensor links to each other with the protective circuit in the control circuit; Described inverter circuit is a full bridge inverter, comprise two groups totally four IGBT constitute former and later two brachium pontis, these four IGBT are installed on the described radiator; Be provided with voltage detecting circuit between the collector electrode of IGBT and the emitter.
During use, after the rectification of three-phase alternating current 380V50Hz process three phase full bridge, again through the main filter circuit that constitutes by reactor and capacitor, obtain comparatively level and smooth direct voltage, before two groups of IGBT constitute, latter two brachium pontis, respectively at front and back half cycle alternate conduction, warp is to output voltage, after electric current is sampled, through conversion, its phase place is controlled by phase-control circuit, along with the change of power output, carries out from main regulation, can guarantee that equipment work is in the high power factor scope, usually more than 0.92, and the power output size is realized by control circuit for pulse-width modulation, is regulated the size of control power output usually by " power given " potentiometer, and the variation of heat induced winding inductance quantity independently detected regulate control, in heating process, obtain best power to guarantee the metal barrel; In a single day protective circuit finds that the feedback signal of temperature on the radiator and pressure in the cooling system and voltage detecting circuit is unusual, closes down electromagnetic induction heating power supply rapidly.
Claims (5)
1. molding machine electromagnetic induction heating system, comprising: electromagnetic induction heating power supply and the heat induced coil that links to each other with the output of electromagnetic induction heating power supply is characterized in that: described heat induced coil is enclosed within on the metal barrel of molding machine.
2. molding machine electromagnetic induction heating system as claimed in claim 1 is characterized in that: described metal barrel is provided with insulating.
3. molding machine electromagnetic induction heating system as claimed in claim 1 or 2, it is characterized in that: described electromagnetic induction heating power supply comprises: control circuit, rectification circuit, inverse changing driving circuit, inverter circuit, radiator, output circuit and be used to cool off the cooling system of inverter circuit, pressure sensor is installed on the cooling system, radiator is provided with temperature sensor, and the electric contact of temperature sensor and pressure sensor links to each other with control circuit.
4. molding machine electromagnetic induction heating system as claimed in claim 3 is characterized in that: described inverter circuit is a full bridge inverter, comprise two groups totally four IGBT constitute former and later two brachium pontis, these four IGBT are installed on the described radiator.
5. molding machine electromagnetic induction heating system as claimed in claim 4 is characterized in that: be provided with voltage detecting circuit between the collector electrode of described IGBT and the emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102806029A CN101965073B (en) | 2010-09-14 | 2010-09-14 | Electromagnetic induction heating system of plastic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102806029A CN101965073B (en) | 2010-09-14 | 2010-09-14 | Electromagnetic induction heating system of plastic machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101965073A true CN101965073A (en) | 2011-02-02 |
| CN101965073B CN101965073B (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102806029A Expired - Fee Related CN101965073B (en) | 2010-09-14 | 2010-09-14 | Electromagnetic induction heating system of plastic machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN101965073B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873802A (en) * | 2012-10-11 | 2013-01-16 | 昊辰（无锡）塑业有限公司 | Thermal electromagnetic induction heater |
| CN103252887A (en) * | 2012-02-16 | 2013-08-21 | 江西鸿盛塑业有限公司 | Electromagnetic heating device for screw extruder |
| CN104285501A (en) * | 2012-03-01 | 2015-01-14 | 伊诺瓦实验室公司 | Device for induction heating of a billet |
| CN105084311A (en) * | 2015-09-02 | 2015-11-25 | 广东合即得能源科技有限公司 | Zero-carbon-emission hydrogen production system by methanol water reforming as well as application and hydrogen production method thereof |
| CN113685161A (en) * | 2021-09-14 | 2021-11-23 | 西安交通大学 | Nitrogen electric heating method and system for in-situ pyrolysis of oil-rich coal |
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| CN1060756A (en) * | 1990-09-11 | 1992-04-29 | 松下电器产业株式会社 | Use the thermatron of inverter power supply |
| CN2641979Y (en) * | 2003-09-10 | 2004-09-15 | 黄克 | Electromagnetic induction heating ring |
| CN201039505Y (en) * | 2007-05-22 | 2008-03-19 | 陈楚辉 | Middle and high frequency inductive heating device and its induction guidance induction heating compound metal plate |
| CN201244891Y (en) * | 2008-05-30 | 2009-05-27 | 深圳市明德海科技有限公司 | Energy-saving type electromagnetic heater of injection moulding machine |
| CN201283633Y (en) * | 2008-10-27 | 2009-08-05 | 黄旭峰 | Electromagnetic heating system of injection moulding machine |
| CN201846493U (en) * | 2010-09-14 | 2011-05-25 | 张家港金米兰德龙机械有限公司 | Electromagnetic induction heating system of plastic moulding machine |
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2010
- 2010-09-14 CN CN2010102806029A patent/CN101965073B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060756A (en) * | 1990-09-11 | 1992-04-29 | 松下电器产业株式会社 | Use the thermatron of inverter power supply |
| CN2641979Y (en) * | 2003-09-10 | 2004-09-15 | 黄克 | Electromagnetic induction heating ring |
| CN201039505Y (en) * | 2007-05-22 | 2008-03-19 | 陈楚辉 | Middle and high frequency inductive heating device and its induction guidance induction heating compound metal plate |
| CN201244891Y (en) * | 2008-05-30 | 2009-05-27 | 深圳市明德海科技有限公司 | Energy-saving type electromagnetic heater of injection moulding machine |
| CN201283633Y (en) * | 2008-10-27 | 2009-08-05 | 黄旭峰 | Electromagnetic heating system of injection moulding machine |
| CN201846493U (en) * | 2010-09-14 | 2011-05-25 | 张家港金米兰德龙机械有限公司 | Electromagnetic induction heating system of plastic moulding machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252887A (en) * | 2012-02-16 | 2013-08-21 | 江西鸿盛塑业有限公司 | Electromagnetic heating device for screw extruder |
| CN104285501A (en) * | 2012-03-01 | 2015-01-14 | 伊诺瓦实验室公司 | Device for induction heating of a billet |
| CN104285501B (en) * | 2012-03-01 | 2016-07-20 | 伊诺瓦实验室公司 | Device for the sensing heating of billet |
| US10462855B2 (en) | 2012-03-01 | 2019-10-29 | Inova Lab S.R.L. | Device for induction heating of a billet |
| CN102873802A (en) * | 2012-10-11 | 2013-01-16 | 昊辰（无锡）塑业有限公司 | Thermal electromagnetic induction heater |
| CN105084311A (en) * | 2015-09-02 | 2015-11-25 | 广东合即得能源科技有限公司 | Zero-carbon-emission hydrogen production system by methanol water reforming as well as application and hydrogen production method thereof |
| CN113685161A (en) * | 2021-09-14 | 2021-11-23 | 西安交通大学 | Nitrogen electric heating method and system for in-situ pyrolysis of oil-rich coal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101965073B (en) | 2012-11-14 |
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Granted publication date: 20121114 Termination date: 20130914 |