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Feeding device on extruder

A feeding device and extruder technology, applied in the field of feeding device, can solve the problems of biting the transmission gear, material blockage, glue leakage, etc., and achieve the effect of reducing the extrusion force, feeding smoothly, and overcoming the coke material.

Inactive Publication Date: 2012-07-18
ZHEJIANG DONGBIN RUBBER MACHINERY SCREW
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The outer layer of the feeding barrel of the injection molding machine is covered with an insulating layer, which relatively reduces the heat loss of the barrel and lowers the temperature of the working environment. However, the feeding device of this feeding barrel often has glue leakage, overflow, etc. The problem is that serious glue leakage will kill the transmission gear, which will bring many problems to the injection molding machine, and the phenomenon of material clogging and burning often occurs, so the structure of the feeding cylinder needs to be further improved

Method used

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] Such as Figures 1 to 7 As shown, the feeding device used on the extruder of this embodiment includes a housing 3 and a main screw 1 passing through the inner cavity 30 of the housing 3, and the housing 3 is provided with a feeding port 31 and can be opened. And the dodge door 32 that closes the inner cavity 30 of the housing 3 , the dodge door 32 is connected with the housing 3 through a pivot 33 . A conical screw 2 is arranged below the feeding port 31 of the housing 3, the flight 21 of the conical screw 2 meshes with the feeding flight 11 of the main screw 1, and the length S of the meshing area is 25-50 cm. The feeding port 31 is located directly above the meshing area. The conical screw 2 meshes and interlocks with the sector gear 12 of the main screw 1 through the sector gear 22 , and the housing 3 encloses the main screw 1 and ...

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Abstract

The invention provides a feeding device on an extruder. The feeding device comprises a shell and a main screw rod penetrating through the inner cavity of the shell, wherein a feeding hole is formed on the shell. The feeding device is characterized in that a tapered screw rod is arranged below the feeding hole, the screw edge of the tapered screw rod is meshed with the feeding screw edge of the main screw rod, the tapered screw rod is in linkage with a transmission mechanism of the main screw rod by virtue of a transmission device, and the part, positioned in the shell, of the main screw rod and the tapered screw rod are closed in the shell. The feeding device has the advantages that the tapered screw rod is additionally arranged on the basis of the main screw rod, and the tapered screw rod and the main screw rod are meshed with each other to operate, so that during feeding, materials can just fall in a meshing zone and are quickly sent to the extruding end of the main screw rod under the action of the tapered screw word, and the problem of glue leakage is avoided, so that the raw materials are saved, the phenomena of material scorching and blocking are avoided, and the speed and quality of feeding are improved effectively.

Description

technical field [0001] The invention relates to the technical field of extruder manufacture, in particular to a feeding device used on the extruder. Background technique [0002] An existing patent No. 201120179886.2, a Chinese utility model patent titled "A Feed Cylinder of an Injection Molding Machine", discloses a feed cylinder for an injection molding machine, comprising a main body of the feed cylinder, which consists of an outer layer and an inner The diameter ratio of the outer layer to the inner layer is 110:25. The outer layer is covered with an insulating layer, and a heating coil is wound between the outer layer and the insulating layer. The heating coil is connected to the induction heater, and the outer layer is connected to the insulating layer. A temperature sensor is arranged between the layers, and the temperature sensor is externally connected with a temperature display. The outer layer of the feeding barrel of the injection molding machine is covered with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/10
Inventor 袁能军
Owner ZHEJIANG DONGBIN RUBBER MACHINERY SCREW
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