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Device for discharging plastic melt

A technology for plastics and melts, applied in the field of devices for discharging plastic melts, can solve problems such as harmfulness, and achieve the effects of reducing heat dissipation, reducing operating costs, and improving suction efficiency

Inactive Publication Date: 2008-12-24
ENGEL AUSTRIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] This type of device presents a detrimental problem caused by the plastic melt inside the cartridge emitting smoke, which emerges from the nozzle and is emitted into the surrounding environment of the device

Method used

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  • Device for discharging plastic melt
  • Device for discharging plastic melt
  • Device for discharging plastic melt

Examples

Experimental program
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Embodiment Construction

[0018] FIG. 1 shows a cross-sectional view of a first embodiment of a device 1 according to the invention.

[0019] In this exemplary embodiment, the device 1 is designed as an injector of an injection molding machine, not shown in detail, and therefore has a screw 11 mounted rotatably and axially displaceably in the cartridge 2 for plasticizing the plastic. The plastic melt produced by the plasticization collects in the known manner in the region of the screw tip, the escape of the plastic melt from the nozzle 3 being prevented by a non-illustrated stop before the injection process begins. For heating the plastic melt, in the exemplary embodiment four heating elements 6 are provided which are designed as heating strips and extend annularly around the outer surface of the cartridge 2 . The heating element 6 is insulated by an additional insulator 7 .

[0020] The housing 4 has a suction opening 5 which can be connected directly to a suction device, also not shown, or via a ho...

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Abstract

The invention relates to a device for discharging plastic melt, including a cylinder (2) receiving a plastic melt, where the cylinder is provided with a nozzle (3) for outputting the plastic melt. The cylinder is provided in a region of the nozzle with a casing (4), which can at least partly encircle the cylinder in a sleeve manner, and with an exhaust port (5) in connection with the nozzle (3) from which smoke escapes.

Description

technical field [0001] The invention relates to a device for discharging plastic melt, comprising a cartridge for receiving the plastic melt, the cartridge being provided with a nozzle for discharging the plastic melt. Background technique [0002] Such devices suffer from the unwanted problem of smoking from the plastic melt inside the cartridge, which emerges from the nozzle and is emitted into the surroundings of the device. [0003] This is of course always unpleasant, and is particularly problematic when the device is used in a clean room or a high-purity room. Contents of the invention [0004] The object of the present invention is to improve a similar device in such a way that at least the problem of smoke dispersion in the environment surrounding the device is reduced with low construction and operating costs. [0005] This object is achieved by a device with the features of claim 1 . [0006] By providing a housing configured with a suction hole, the smoke esca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/46B29C45/50B29C45/63B29C47/36B29C47/44B29C47/76B29C48/06B29C48/25B29C48/45B29C48/76
CPCB29C45/1701B29C45/63B29C48/83B29C48/06B29C48/25B29C48/768B29C48/832B29C48/965
Inventor M·霍尔格K·韦尔纳F·卡尔
Owner ENGEL AUSTRIA
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