Melt rotating fast filter for extruder

A filter and extruder technology, which is applied in the field of extruder melt rotary fast filter, can solve the problems of large changes, waste of raw materials, and small screen filter area.

Active Publication Date: 2006-05-17
梁斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing filters are hydraulically controlled, consisting of a mold body, a filter screen, hydraulic components and seals. The filter screen is generally a straight plate, with one end built into the mold body, and the screen needs to be changed when the machine is stopped. ; There are a plurality of filter mesh holes on the screen plate. Generally, there is only one filter mesh hole corresponding to the through hole of the flow channel of the mold body durin

Method used

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  • Melt rotating fast filter for extruder
  • Melt rotating fast filter for extruder
  • Melt rotating fast filter for extruder

Examples

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Embodiment Construction

[0012] Such as figure 1 , 2 As shown in and 3, an extruder melt rotary quick filter is composed of a die body 1, a filter screen plate 2 and a hydraulic assembly 3, and the die body 1 is a split type, including a feed die body 11 and a discharge die Body 12, the two are fixedly connected by screws 4, the front and back of the mold body 1 are provided with through flow channel through holes 13, a heating rod (not shown in the figure) is built-in on the mold body 1, and a junction box 5 is placed outside.

[0013] The filter screen plate 2 is a ratchet type filter screen plate, which is fixed between the feed mold body 11 and the discharge mold body 12 with a rotating shaft 21, and a plurality of filter mesh holes 22 are arranged on it, and the mesh holes 22 are provided with Filter screen; the filter screen holes 22 are evenly distributed around the center of the ratchet wheel. Here, the size of the flow channel through hole 13 can cover two or more filter meshes 22. In this ...

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Abstract

The melt rotating fast filter for extruder consists of mold body, filtering net plate and hydraulic assembly. The split mold body includes material feeding mold body and discharge mold body connected with screws; the ratchet wheel type filtering net plate is fixed with one rotating shaft between the material feeding mold body and the discharge mold body and has several filtering net holes with filtering net inside; the hydraulic assembly connected onto the fixing seat of the oil cylinder includes two parts of a hydraulic cylinder and a draw hook; and the draw hook set on the piston rod has roller unit clamped to ratchet of the filtering net plate. The present invention can realize non-stop fast net replacement, and has great filtering area and clear melt passage maintained during net replacement, small resistance change of the filtering net and less melt pressure fluctuation in the system.

Description

technical field [0001] The invention relates to an extruder melt filter, in particular to an extruder melt rotary fast filter. Background technique [0002] The filter is a kind of auxiliary equipment specially used for the production of plastic sheets and film extruders, and is used to filter the melt flowing out of the extruder. Existing filters are hydraulically controlled, consisting of a mold body, a filter screen, hydraulic components and seals. The filter screen is generally a straight plate, with one end built into the mold body, and the screen needs to be changed when the machine is stopped. ; There are a plurality of filter mesh holes on the screen plate. Generally, there is only one filter mesh hole corresponding to the through hole of the flow channel of the mold body during work. Such a structure makes the filter area of ​​the screen plate relatively small, and in the process of changing the screen, Due to the blockage of the melt channel, the resistance of the...

Claims

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Application Information

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IPC IPC(8): B29C48/92
CPCB29B7/58B29C48/6914B29C48/92B29C2948/92495B29C2948/92028
Inventor 梁斌
Owner 梁斌
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