CN201941149U - Melt-filtered mechanism for plastics extruder - Google Patents
Melt-filtered mechanism for plastics extruder Download PDFInfo
- Publication number
- CN201941149U CN201941149U CN2010206077856U CN201020607785U CN201941149U CN 201941149 U CN201941149 U CN 201941149U CN 2010206077856 U CN2010206077856 U CN 2010206077856U CN 201020607785 U CN201020607785 U CN 201020607785U CN 201941149 U CN201941149 U CN 201941149U
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- China
- Prior art keywords
- filter
- melt
- filter net
- screen pack
- pressing ring
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A melt-filtered mechanism for a plastics extruder belongs to the technical field of injection molding machinery. The melt-filtered mechanism comprises a filter stocking which is provided with eduction holes separately distributed at the bottom, and a filter net arranged in a filter stocking cavity. The melt-filtered mechanism is characterized by also comprising a filter net pressing ring, wherein the lower portion of the filter net pressing ring forms a convex ring, the inner surface of the filter stocking cavity of the filter stocking forms a pressing ring seat, the convex ring is matched with the pressing ring seat, the filter net abuts the plastics melt eduction holes, and the bottom surface of the convex ring contacts the filter net. The technical scheme adds the filter net pressing ring having the convex ring at the bottom and the pressing ring seat formed on the inner surface of the filter stocking cavity of the filter stocking. After the filter net pressing ring and the pressing ring seat are matched, the bottom surface of the convex ring of the filter net pressing ring can press the filter net, thereby preventing the filter net from moving and hemming, relieving the flow resistance of the plastics melt, reducing the workload of the extruder, saving the using amount of the filter net and relieving the workloads of handlers.
Description
Technical field
The utility model belongs to the extrusion molding field of mechanical technique, is specifically related to a kind of melt filtration mechanism of plastic extruder.
Background technology
As the industry's knowledge of the reason, dispose a melt filtration mechanism usually, with the foreign material filtering in the melt, make melt enter head simultaneously with uniform state by melt filtration mechanism at the fuselage of screw plastic extruder and the position that borders on of head.
Be configured in melt filtration mechanism between fuselage and the head in the prior art, comprise a filter ruffle, offer a retable material melt fairlead in the bottom of filter ruffle; One screen pack is placed in the filter ruffle chamber of filter ruffle.When screw extruder melt extruded plastic pellet, the plastic melt soldier arrived screen pack earlier, through introducing head by the plastic melt fairlead of filter ruffle behind the filter screen.Because screen pack is not add in the filter ruffle chamber that any tube bank ground cushion is placed on filter ruffle, so to move about and edge-curl phenomenon can appear in screen pack, moves about and/or crimping all can cause leakage filtration to plastic melt, influences product quality.
At present, result of the above problems is the laying quantity that increases screen pack, still facts have proved and can not play effective function, causes atypical problem on the contrary: the one, increase the plastic melt flow resistance, and cause the living load of screw extruder to increase; The 2nd, cause waste as the screen pack that is equipped with accessory or title auxiliary part; The 3rd, operator's workload increases.Therefore be necessary to be improved, technical scheme described below is to produce under this prerequisite.
Summary of the invention
Task of the present utility model is to provide a kind of and helps preventing to increase the flow resistance of plastic melt and use and avoid causing the load of screw extruder to increase, help to stop that moving about appears in screen pack or crimping and use the filter effect of guaranteeing plastic melt, only need to use saving as the screen pack of auxiliary part and can reduce the melt filtration mechanism of plastic extruder of operator's workload with single piece of screen pack.
Task of the present utility model is finished like this, a kind of melt filtration mechanism of plastic extruder, comprise a filter ruffle, the bottom interval of this filter ruffle is distributed with the plastic melt fairlead, one screen pack, be located in the filter ruffle chamber of filter ruffle, be characterised in that: also include a screen pack trim ring, the bottom of this screen pack trim ring constitutes a protruding circle, constitute a trim ring seat on the inwall in the filter ruffle chamber of described filter ruffle, described protruding circle matches with the trim ring seat, and described screen pack and described plastic melt fairlead paste and touch, and the basal surface of protruding circle contacts with screen pack.
In a specific embodiment of the present utility model, offer at least one pair of screw hole on the described trim ring seat.
The technical scheme that the utility model provides is owing to set up the screen pack trim ring that the bottom has protruding circle, and on the inwall in the filter ruffle chamber of filter ruffle, constitute a trim ring seat, when the screen pack trim ring with after the trim ring seat cooperates, just can screen pack be pushed down by the basal surface of the protruding circle of screen pack trim ring, moving about or edge-curl phenomenon can not appear in screen pack; Owing to only need use one piece of screen pack, therefore can alleviate the flow resistance of plastic melt, avoid increasing the live load of extruder, and can save the consumption of screen pack and alleviate operator's workload.
Description of drawings
Fig. 1 is example structure figure of the present utility model.
Fig. 2 is an application examples schematic diagram of the present utility model.
The specific embodiment
Embodiment:
Ask for an interview Fig. 1, as the preferred embodiment structure, provided a filter ruffle 1, this filter ruffle 1 has a filter ruffle chamber 12, constitute plastic melt fairlead 11 in the bottom in filter ruffle chamber 12, and constitute a trim ring seat 121 on the inwall in filter ruffle chamber 12, offer a pair ofly each other with 180 ° (circumferencial direction of trim ring seat 121) screw hole 1211 at interval on trim ring seat 121, this effect to screw hole 1211 is screen pack trim ring 3 is ejected filter ruffle chamber 12.One screen pack 2, these screen pack 2 place mats are in filter ruffle chamber 12, and promptly put on plastic melt fairlead 11 shop.One screen pack trim ring 3, the bottom of this screen pack trim ring 3 constitute a protruding circle 31, in screen pack trim ring 3 is placed in filter ruffle chamber 12 after, protruding circle 31 matches with aforesaid trim ring seat 121, and the compressing of the basal surface 311 of protruding circle 31 is on aforesaid screen pack 2.
In the time will changing screen pack 2, so as long as with screw or bolt revolves and aforesaid screw hole 1211, spread to the basal surface 311 of protruding circle 31 by screw or bolt, evict screen pack trim ring 3 from filter ruffle chamber 12.
Application examples:
Ask for an interview Fig. 2, the fuselage 4 and the head 5 of screw extruder in Fig. 2, have been illustrated, according to known general knowledge, is furnished with an extruder connector 41 at the discharging opening position of fuselage 4, be furnished with a head connector 51 at the charging aperture position of head 5, extruder connector 41 is connected by quick-speed jigs 6 with head connector 51.Melt filtration of the present utility model mechanism is between extruder connector 41 and head connector 51, promptly by extruder connector 41 and head connector 51 clampings (by quick-speed jigs 6).Screw extruder work, the plastic melt of fusion arrives screen pack 2 from the cavity volume of the discharging opening process filter screen trim ring 3 of fuselage 4, filter the back through screen pack 2 and draw, enter head 5, squeeze the cable core 7 outer outer jackets that form of the cable that is layed onto conduct head 5 from the plastic melt fairlead of chimney filter 1.In the course of the work, push down between the bottom in filter ruffle chamber 12, thereby can not occur moving or edge-curl phenomenon, can guarantee filter effect because the position, edge of screen pack 2 is filtered the basal surface 311 of the protruding circle 31 of net trim ring 3.
Claims (2)
1. the melt filtration mechanism of a plastic extruder, comprise a filter ruffle (1), the bottom interval of this filter ruffle (1) is distributed with plastic melt fairlead (11), one screen pack (2), be located in the filter ruffle chamber (12) of filter ruffle (1), it is characterized in that: also include a screen pack trim ring (3), the bottom of this screen pack trim ring (3) constitutes a protruding circle (31), constitute a trim ring seat (121) on the inwall in the filter ruffle chamber (12) of described filter ruffle (1), described protruding circle (31) matches with trim ring seat (121), described screen pack (2) pastes with described plastic melt fairlead (11) and touches, and the basal surface (311) of protruding circle (31) contacts with screen pack (2).
2. the melt filtration mechanism of plastic extruder according to claim 1 is characterized in that offering on the described trim ring seat (121) at least one pair of screw hole (1211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206077856U CN201941149U (en) | 2010-11-16 | 2010-11-16 | Melt-filtered mechanism for plastics extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206077856U CN201941149U (en) | 2010-11-16 | 2010-11-16 | Melt-filtered mechanism for plastics extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201941149U true CN201941149U (en) | 2011-08-24 |
Family
ID=44468500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206077856U Expired - Fee Related CN201941149U (en) | 2010-11-16 | 2010-11-16 | Melt-filtered mechanism for plastics extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201941149U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514174A (en) * | 2011-12-20 | 2012-06-27 | 张家港市联达机械有限公司 | Plastic extruder filter screen fixing device |
| CN103316522A (en) * | 2013-06-21 | 2013-09-25 | 中国科学院南海海洋研究所 | Filter applied to in-situ sample-injection type seawater analytical instrument |
-
2010
- 2010-11-16 CN CN2010206077856U patent/CN201941149U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514174A (en) * | 2011-12-20 | 2012-06-27 | 张家港市联达机械有限公司 | Plastic extruder filter screen fixing device |
| CN103316522A (en) * | 2013-06-21 | 2013-09-25 | 中国科学院南海海洋研究所 | Filter applied to in-situ sample-injection type seawater analytical instrument |
| CN103316522B (en) * | 2013-06-21 | 2015-06-03 | 中国科学院南海海洋研究所 | Filter applied to in-situ sample-injection type seawater analytical instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20141116 |
|
| EXPY | Termination of patent right or utility model |