Nozzle for injection moulding of plastic materials
View Patent ↗Nozzle for injection moulding of plastic materials, comprising a generally cylindrical body with spiral-shaped groove on the external surface, in which a first and a second heating resistor which are independent from each other and which are equipped with respective autonomous controlling thermocouples, are wound.
1. A nozzle for injection moulding of plastic materials comprising a generally cylindrical body having an external surface, a first heating resistor wound on said external surface, and a second heating resistor wound on said external surface, wherein said first and second heating resistors are both disposed within a spiral-shaped groove, provided in said external surface of said cylindrical body, in a side-by-side condition and along a substantially same axial portion of said body.
2. Nozzle according to claim 1 , wherein each of said first heating resistor and said second heating resistor is provided with a respective autonomous control thermocouple connected thereto.
3. Nozzle according to claim 2 , wherein said first and second thermocouples are calibrated to differentiated values.
4. Nozzle according to claim 1 , wherein said first and second heating resistors are functionally independent from each other.
5. Nozzle according to claim 1 , wherein said first and second heating resistors are housed within said spiral-shaped groove at the same radial distance with respect to the axis of said body.
6. A nozzle for injection moulding of plastic materials comprising a generally cylindrical body having an external surface, a first heating resistor wound on said external surface, and a second heating resistor wound on said external surface and independent from said first heating resistor, wherein said first and second heating resistors are both disposed within a spiral-shaped groove, provided in said external surface of said cylindrical body, in a side-by-side condition and along a substantially same axial portion of said body, and;
wherein each of said first heating resistor and said second heating resistor is provided with a respective autonomous control thermocouple connected thereto.
7. A nozzle for injection moulding of plastic materials comprising a generally cylindrical body having an external surface, a first heating resistor wound on said external surface, and a second heating resistor wound on said external surface and independent from said first heating resistor, wherein said first and second heating resistors are both disposed within a spiral-shaped groove, provided in said external surface of said cylindrical body, in a side-by-side condition and along a substantially same axial portion of said body; and
wherein said first heating resistor and said second heating resistor are housed within said spiral-shaped groove at the same radial distance with respect to the axis of said body.
8. A nozzle for injection moulding of plastic materials comprising a generally cylindrical body having an external surface, a first heating resistor wound on said external surface, and a second heating resistor wound on said external surface and independent from said first heating resistor, wherein said first and second heating resistors are both disposed within a spiral-shaped groove, provided in said external surface of said cylindrical body, in a side-by-side condition; and
wherein each of said first heating resistor and said second heating resistor is provided with a respective autonomous control thermocouple connected thereto.
9. A nozzle for injection moulding of plastic materials comprising a generally cylindrical body having an external surface, a first heating resistor wound on said external surface, and a second heating resistor wound on said external surface and independent from said first heating resistor, wherein said first and second heating resistors are both disposed within a spiral-shaped groove, provided in said external surface of said cylindrical body, in a side-by-side condition; and
wherein said first heating resistor and said second heating resistor are housed within said spiral-shaped groove at the same radial distance with respect to the axis of said body.
10. A nozzle for injection moulding of plastic materials comprising a generally cylindrical body having an external surface, a first heating resistor wound on said external surface, and a second heating resistor wound on said external surface and independent from said first heating resistor, wherein said first and second heating resistors are both disposed within a spiral-shaped groove, provided in said external surface of said cylindrical body, in a side-by-side condition and along a substantially same axial portion of said body; and
wherein each of said first heating resistor and said second heating resistor is provided with a respective autonomous control thermocouple connected thereto, and said first heating resistor and said second heating resistor are housed within said spiral-shaped groove at the same radial distance with respect to the axis of said body.
11. A nozzle for injection moulding of plastic materials comprising a generally cylindrical body having an external surface, a first heating resistor wound on said external surface, and a second heating resistor wound on said external surface and independent from said first heating resistor, wherein said first and second heating resistors are both disposed within a spiral-shaped groove, provided in said external surface of said cylindrical body, in a side-by-side condition; and
wherein each of said first heating resistor and said second heating resistor is provided with a respective autonomous control thermocouple connected thereto, and said first heating resistor and second heating resistor are housed within said spiral-shaped groove at the same radial distance with respect to the axis of said body.