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CN-224224313-U - Barrel film heating device

CN224224313UCN 224224313 UCN224224313 UCN 224224313UCN-224224313-U

Abstract

The utility model discloses a cylindrical film heating device, wherein hot air is blown into one end of a cylindrical film passing hole of a heat preservation cylinder by an air outlet end of a hot air module, the other end of the cylindrical film passing hole of the heat preservation cylinder is sucked by an air inlet end of the hot air module, hot air flow can be formed in the cylindrical film passing hole, residual hot air flowing through the cylindrical film passing hole can enter the air inlet end of the hot air module and then be reheated and utilized by an air heater, and the air is sent into the cylindrical film passing hole again by a fan to form circulating hot air flow so as to circularly heat the cylindrical film passing hole.

Inventors

  • GE JINGYIN
  • CHEN LIMIN

Assignees

  • 中山市宏湾薄膜装备有限公司

Dates

Publication Date
20260512
Application Date
20250331

Claims (10)

  1. 1. A cylinder film heating device, characterized by comprising the following steps: The heat preservation cylinder (100) is provided with a cylinder film passing hole (110), and the hole axis of the cylinder film passing hole (110) is arranged vertically; The hot air module (200) is arranged on the heat preservation cylinder (100), the hot air module (200) comprises an air duct structure (210), a fan (220) and an air heater (230), an air outlet end of the air duct structure (210) is communicated with one end of the cylinder film passing hole (110), an air inlet end of the air duct structure (210) is communicated with the other end of the cylinder film passing hole (110), the air heater (230) is arranged on the air duct structure (210), and the fan (220) is arranged on the air duct structure (210) and is used for forming air flow from the air inlet end to the air outlet end in the air duct structure (210).
  2. 2. The cartridge membrane heating apparatus of claim 1 further comprising a radiant heater (300), said radiant heater (300) being disposed on said insulating cartridge (100) and on a wall of said cartridge membrane passage aperture (110), said radiant heater (300) being capable of radiating heat toward said cartridge membrane passage aperture (110).
  3. 3. The cartridge membrane heating device of claim 1, wherein the air duct structure (210) comprises an air inlet pipe (211), a connecting pipe (212) and an air outlet pipe (213), an air inlet of the fan (220) is communicated with the upper end of the cartridge membrane passing hole (110) through the air inlet pipe (211), an air outlet of the fan (220) is communicated with an air inlet of the air heater (230) through the connecting pipe (212), and an air outlet of the air heater (230) is communicated with the lower end of the cartridge membrane passing hole (110) through the air outlet pipe (213).
  4. 4. A cylindrical film heating device according to claim 3, wherein the air outlet pipe (213) comprises an air outlet main pipe section (2131) and at least two air outlet branch pipe sections (2132), one end of each air outlet branch pipe section (2132) is communicated with the lower end of the cylindrical film passing hole (110), all air outlet branch pipe sections (2132) are uniformly distributed around the hole axis of the cylindrical film passing hole (110) near one end of the cylindrical film passing hole (110), the other ends of all air outlet branch pipe sections (2132) are communicated with one end of the air outlet main pipe section (2131), and the other ends of the air outlet main pipe sections (2131) are communicated with the air outlet of the air heater (230).
  5. 5. The cartridge membrane heating apparatus of claim 4 wherein an axis of an end of said air outlet branch pipe section (2132) near said cartridge membrane passing hole (110) is tangential to a circumference of said cartridge membrane passing hole (110).
  6. 6. A cylindrical film heating apparatus according to claim 3, wherein said air inlet pipe (211) comprises an air inlet main pipe section (2111) and at least two air inlet branch pipe sections (2112), one end of said air inlet branch pipe sections (2112) is communicated with the upper end of said cylindrical film passing hole (110), all of said air inlet branch pipe sections (2112) are uniformly arranged around the hole axis of said cylindrical film passing hole (110) near one end of said cylindrical film passing hole (110), the other end of all of said air inlet branch pipe sections (2112) is communicated with one end of said air inlet main pipe section (2111), and the other end of said air inlet main pipe section (2111) is communicated with said air inlet of said blower (220).
  7. 7. The cartridge heating apparatus of claim 6 wherein an axis of said intake manifold section (2112) near an end of said cartridge passage aperture (110) is tangential to a circumference of said cartridge passage aperture (110).
  8. 8. The cartridge film heating apparatus of claim 2, wherein said radiant heaters (300) are provided in at least two rows and are uniformly arranged around the aperture axis of said cartridge film passing aperture (110), each row of said radiant heaters (300) comprising at least two of said radiant heaters (300) uniformly arranged along the aperture axis of said cartridge film passing aperture (110).
  9. 9. A cartridge heating apparatus as set forth in claim 8 wherein adjacent ones of said radiant heaters (300) are spaced apart.
  10. 10. The cartridge membrane heating apparatus as claimed in claim 2, wherein the heat-retaining cartridge (100) has a cylindrical shape, the cartridge membrane passing hole (110) has a circular through hole, and the radiation heater (300) has a radiation heating sheet, and the radiation heating sheet is attached to the wall of the cartridge membrane passing hole (110).

Description

Barrel film heating device Technical Field The utility model relates to a film blowing machine, in particular to a cylindrical film heating device. Background After the film blowing machine forms a cylindrical film by blowing molten plastic through a film blowing head, the cylindrical film is sometimes required to be subjected to secondary heating by a cylindrical film heating device for secondary treatment. Some conventional drum membrane heating devices include a heat-insulating drum and a hot air module, the heat-insulating drum is provided with a drum membrane passing hole extending vertically, the drum membrane can move through the drum membrane passing hole, the hot air module can slowly blow hot air into the lower end of the drum membrane passing hole, then hot air naturally rises along the drum membrane passing hole, and then the hot air leaves the heating device from the upper end hole of the drum membrane passing hole. The cylindrical film heating device is relatively low in heat utilization rate, and is not energy-saving and environment-friendly. Disclosure of utility model The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the cylindrical film heating device which can improve the heat utilization rate and is more energy-saving and environment-friendly. The cylindrical film heating device comprises a heat preservation cylinder and a hot air module. The heat preservation section of thick bamboo is provided with a section of thick bamboo membrane through hole, the hole axis of section of thick bamboo membrane through hole sets up along vertical, hot air module set up in the heat preservation section of thick bamboo, hot air module includes wind channel structure, fan and air heater, wind-out end of wind channel structure with the one end intercommunication of section of thick bamboo membrane through hole, the air inlet end of wind channel structure with the other end intercommunication of section of thick bamboo membrane through hole, air heater set up in wind channel structure, the fan set up in wind channel structure and be used for in the wind channel structure forms from the wind inlet end towards the wind flow of wind-out end. The barrel film heating device has the advantages that hot air is blown into one end of the barrel film passing hole of the heat preservation barrel by the air outlet end of the hot air module, hot air flow can be formed in the barrel film passing hole by sucking the other end of the barrel film passing hole of the heat preservation barrel by the air inlet end of the hot air module, residual hot air flowing through the barrel film passing hole can enter the air inlet end of the hot air module and then be re-heated and utilized by the air heater, and is re-sent into the barrel film passing hole by the fan to form circulating hot air flow to circularly heat the barrel film passing hole. According to some embodiments of the utility model, the heat insulation tube further comprises a radiation heater, wherein the radiation heater is arranged on the wall of the heat insulation tube and positioned on the tube membrane through hole, and the radiation heater can radiate heat towards the tube membrane through hole. According to some embodiments of the utility model, the air duct structure comprises an air inlet pipe, a connecting pipe and an air outlet pipe, wherein an air inlet of the fan is communicated with the upper end of the cylindrical film passing hole through the air inlet pipe, an air outlet of the fan is communicated with an air inlet of the air heater through the connecting pipe, and an air outlet of the air heater is communicated with the lower end of the cylindrical film passing hole through the air outlet pipe. According to some embodiments of the present utility model, the air outlet pipe includes an air outlet main pipe section and at least two air outlet branch pipe sections, one end of each air outlet branch pipe section is communicated with the lower end of the corresponding cylindrical membrane passing hole, one end of each air outlet branch pipe section, which is close to the corresponding cylindrical membrane passing hole, is uniformly distributed around the axis of the corresponding cylindrical membrane passing hole, the other end of each air outlet branch pipe section is communicated with one end of the corresponding air outlet main pipe section, and the other end of each air outlet main pipe section is communicated with the air outlet of the corresponding air heater. According to some embodiments of the utility model, an axis of the outlet branch pipe section near one end of the cartridge membrane passing hole is tangential to a circumference of the cartridge membrane passing hole. According to some embodiments of the utility model, the air inlet pipe comprises an air inlet main pipe section and at least two air inlet branch pipe sections, one end of each air inl