CN201118993Y - A heating device for plasticizing machine - Google Patents
A heating device for plasticizing machine Download PDFInfo
- Publication number
- CN201118993Y CN201118993Y CNU2007201813739U CN200720181373U CN201118993Y CN 201118993 Y CN201118993 Y CN 201118993Y CN U2007201813739 U CNU2007201813739 U CN U2007201813739U CN 200720181373 U CN200720181373 U CN 200720181373U CN 201118993 Y CN201118993 Y CN 201118993Y
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- CN
- China
- Prior art keywords
- circuit
- heating element
- injection molding
- molding machine
- voltage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an injection molding machine heating device, which is provided with an electrical heating element (R) and an alternating current power supply circuit. The injection molding machine heating device is characterized in that an alternating current voltage regulating circuit is arranged in the alternating current power supply circuit of the electrical heating element. The alternating current voltage regulating circuit can be a controllable silicon voltage regulating circuit or an adjustable transformer voltage regulating circuit etc.. The operating voltage of the electrical heating element provided by the utility model can be adjusted by the alternating current voltage regulating circuit, therefore, the electrical heating element can be ensured to work at the constant temperature operating state with low voltage and low current through regulating the voltage. Under the operating mode, not only the temperature variation of the injection molding machine can be reduced, but also the energy saving purpose can be achieved.
Description
Technical field
The utility model belongs to a kind of industrial heater, is specifically related to a kind of heater of injection molding machine.
Background technology
Fig. 1 is the heater circuit of existing injection molding machine, this heater circuit is to give electric heating element R power supply by 220 volts of AC power, be provided with switch T in the heater circuit by thermostat control, when detecting the injection molding machine working temperature greater than design temperature, the thermostat power cutoff, treat that temperature drops to set point, energized again, its weak point is: electric heating element is in the operating state of 220 volts of high voltages, big electric current, and frequent break-make, temperature fluctuation is big, wastes energy.
Summary of the invention
The technical problems to be solved in the utility model provides little, the energy-conservation injection molding machine heater of a kind of temperature fluctuation.
The technical scheme that addresses the above problem is (referring to implementing illustration): the utility model is provided with electric heating element (R) and ac power circuit, it is characterized in that: be provided with AC voltage adjusting circuit in the ac power circuit of described electric heating element.
Further scheme is: described AC voltage adjusting circuit is the silicon-controlled voltage regulation circuit, is connected to adjustable resistance (RW) in the SCR control polar circuit of this regulating circuit.
Another scheme is: described AC voltage adjusting circuit is the adjustable transformer regulating circuit.
The operating voltage of the utility model electric heating element can be regulated by AC voltage adjusting circuit, therefore can make electric heating element be operated in the Huanshui River temperature operating state of low-voltage, low current by regulation voltage, this operating state not only can reduce the temperature fluctuation of injection molding machine, and can reach purpose of energy saving.
Description of drawings
Fig. 1, existing injection molding machine heater circuit diagram
Fig. 2, the utility model injection molding machine heater frame principle figure
Fig. 3, the utility model embodiment 1 circuit diagram
Fig. 4, the utility model embodiment 2 circuit diagrams
Fig. 5, the utility model embodiment 3 circuit diagrams
Fig. 6, the utility model embodiment 4 circuit diagrams
Embodiment
Embodiment 1
Referring to Fig. 3, in present embodiment injection molding machine heater circuit, the AC voltage adjusting circuit that is provided with in the electric heating element R power supply circuits is the bidirectional thyristor for regulating voltage circuit, bidirectional thyristor for regulating voltage circuit and electric heating element R are connected in series, be connected to the adjustable resistance RW (400-800K) that is used to regulate the controllable silicon output voltage in the bidirectional triode thyristor pipe BTA control polar circuit, also be connected to trigger tube DB3, filter resistance R1 and filter capacitor C1.
This example is regulated the operating voltage of electric heating element R by the output voltage of regulating bidirectional triode thyristor, make electric heating element be operated in 50 volts, operating current 2.5 peaces, working temperature is constant in 180 ℃, when detected temperatures is higher or lower than 180 ℃, can make it maintain 180 ℃ by regulating RW.
Compare with embodiment illustrated in fig. 1, the 6 kilowatts of electric heating elements in this example 50 Europe can economize on electricity more than 50% under constant 180 ℃ of conditions of work.
Referring to Fig. 4, the AC voltage adjusting circuit of these routine electric heating element power supply circuits is the adjustable transformer regulating circuit, and described adjustable transformer regulating circuit and electric heating element are connected in series.
Embodiment 3
Referring to Fig. 5, the AC voltage adjusting circuit of these routine electric heating element power supply circuits is the bidirectional thyristor for regulating voltage circuit, and described bidirectional thyristor for regulating voltage circuit and electric heating element are connected in parallel.
Embodiment 4
Referring to Fig. 6, the AC voltage adjusting circuit of these routine electric heating element power supply circuits is the adjustable transformer regulating circuit, and described adjustable transformer regulating circuit and electric heating element are connected in parallel.
Claims (5)
1, a kind of injection molding machine heater is provided with electric heating element (R) and ac power circuit, it is characterized in that: be provided with AC voltage adjusting circuit in the ac power circuit of described electric heating element.
2, injection molding machine heater according to claim 1 is characterized in that: described AC voltage adjusting circuit is the silicon-controlled voltage regulation circuit, is connected to adjustable resistance (RW) in the SCR control polar circuit of this regulating circuit.
3, injection molding machine heater according to claim 1 is characterized in that: described AC voltage adjusting circuit is the adjustable transformer regulating circuit.
4, according to claim 1,2 or 3 described injection molding machine heaters, it is characterized in that: described AC voltage adjusting circuit and electric heating element are connected in series.
5, according to claim 1,2 or 3 described injection molding machine heaters, it is characterized in that: described AC voltage adjusting circuit and electric heating element are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201813739U CN201118993Y (en) | 2007-10-25 | 2007-10-25 | A heating device for plasticizing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201813739U CN201118993Y (en) | 2007-10-25 | 2007-10-25 | A heating device for plasticizing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118993Y true CN201118993Y (en) | 2008-09-17 |
Family
ID=39993595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201813739U Expired - Fee Related CN201118993Y (en) | 2007-10-25 | 2007-10-25 | A heating device for plasticizing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118993Y (en) |
-
2007
- 2007-10-25 CN CNU2007201813739U patent/CN201118993Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20111025 |