CN202702584U

CN202702584U - Filter device of plastic extruder

Info

Publication number: CN202702584U
Application number: CN 201220420521
Authority: CN
Inventors: 王敏辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-23
Filing date: 2012-08-23
Publication date: 2013-01-30
Anticipated expiration: 2022-08-23

Abstract

The utility model discloses a filter device of a plastic extruder. The filter device is formed by laminating and fixing a plurality of sheets. One face of each sheet is a smooth plane while the other face of each sheet is provided with filter grooves which are uniformly and densely distributed. The filter device is formed by laminating the sheets which are casted and formed by metal powder. One face of each sheet is a smooth plane while the other face of each sheet is provided with filter grooves which are uniformly and densely distributed. When the sheets are laminated and placed to form the filter device, the filter grooves are combined with the plane to form filter holes on the filter device, so that the filter device of the plastic extruder has the characteristics of convenience in processing, harder material, difficulty to abrade, and long service life.

Description

The filter of plastic extruder

Technical field

The utility model relates to a kind of plastic extruder, specifically a kind of filter of plastic extruder.

Background technology

The filter of plastic extruder is one of core component of extruder, the present flat and cartridge type to mainly containing of filter, no matter flat or cartridge type manufacture process the most difficult be exactly boring, stamp thickly dotted filter bores at one flat plate or cylinder, take time and effort very much, cost is also very high, simultaneously owing to needing boring, thereby the material of filter can not be too hard, as adopt the hard material such as wolfram steel just can't hole at all, and extruder mainly is used for processing recovery waste or used plastics, contains a large amount of impurity in these waste or used plastics, wherein much is the very high metal of hardness, in extrusion process, can cause very large damage to filter like this, the in use for some time surface abrasion filter bores distortion of all existing filters is stopped up, and is shabby often, had a strong impact on service life.

The utility model content

The purpose of this utility model is to provide a kind of filter of plastic extruder, this filter adopts sheet lamination to form, thin slice passes through metal powder casting forming, every plate sheet simultaneously is smooth flat, another side is provided with the lautertuns that evenly gathers, and when sheet lamination was placed the formation filter, lautertuns combined with the plane and forms filter bores at filter, have easy to process, material more firmly, not easy to wear, the characteristics of long service life.

For achieving the above object by the following technical solutions:

A kind of filter of plastic extruder is characterized in that: filter adopts some sheet laminations fixedly to form, and every plate sheet simultaneously is smooth flat, and another side is provided with the lautertuns that evenly gathers.

The notch of described lautertuns becomes large gradually from port to the another port.

Described thin slice is annular, and described annular thin slice lautertuns outside notch is greater than the notch of inboard.

Have a ring shape blow tank at the outer rim place of described annular thin slice lautertuns.

The described thin slice thin slice that is rectangle.

Edge in larger slot mouth one side on described rectangle thin slice offers blow tank.

The utility model adopts some sheet laminations fixedly to form, and every plate sheet one and be smooth flat, another side is provided with the lautertuns that evenly gathers, thin slice adopts metal powder casting forming, the processing of the utility model filter bores is very convenient, and be evenly distributed, the aperture is unified, greatly reduces the cost of filter; Thin slice utilizes metal powder extrusion process to produce in addition, can be easy to process such as scleroid thin slices such as wolfram steel, and with the fixing filter wearability in the extruding and discharging process that greatly promotes of scleroid sheet lamination, filter increases the service life greatly, adopt the die casting of metal powder the notch of lautertuns can also be arranged to become gradually large to the another port from port, in the plastic extrusion process, can not stop up filter bores like this, improve the reliability of plastic extruder work.

Description of drawings

Fig. 1 is the structural representation of the utility model rectangle thin slice;

Fig. 2 is the utility model Fig. 1 A place enlarged diagram;

Fig. 3 is the structural representation behind the utility model rectangle sheet lamination;

Fig. 4 is the structural representation of discharge end behind the utility model rectangle sheet lamination;

Fig. 5 is the structural representation of the utility model annular thin slice;

Fig. 6 is the utility model Fig. 5 B place enlarged diagram;

Fig. 7 is the structural representation behind the utility model annular sheet lamination.

Shown in Fig. 1-4, a kind of filter of plastic extruder, filter adopt some rectangle thin slice 1 stacked plate-like structures that fixedly form, and every length of a film square sheet 1 one side is smooth plane, and another side is provided with the lautertuns 11 that evenly gathers; The notch of described lautertuns 11 becomes to the another port greatly gradually from port, stacked rear filtration also on flat filter rule fitly arrange.

The utility model is fixed the rectangle sheet lamination, cooperate the formation filter bores by lautertuns and plane on the rectangle thin slice two sides, and to be entrance point become greatly to the aperture of the port of export this filter bores gradually, and this structure becomes can avoid filter bores to stop up in the plastic extrusion process; The rectangle thin slice adopts the method production of metallic dust die casting, so that filter filter bores size univesral distribution is even after the moulding; Adopt in addition metallic dust die casting can conveniently process scleroid material rectangle thin slice, the filter wearability after the moulding promotes greatly, thereby has prolonged service life.

The utility model can also the edge in larger slot mouth one side offer blow tank 12 on described rectangle thin slice, blow tank 12 avoids stopping up the port of export of filter bores so that the port of export of the filter bores of stacked rear formation communicates with blow tank.

Shown in Fig. 5-7, filter is cylindrical shape, and filter adopts that some annular thin slice 2 is stacked fixedly to be formed, and every annular thin slice 2 one sides be smooth plane, and another side is provided with evenly densely covered lautertuns 21; Described annular thin slice 2 lautertuns 21 outside notches have a ring shape blow tank 22 greater than the notch of inboard at the outer rim place of described annular thin slice 2 lautertuns 21.

Annular thin slice 2 is similar with rectangle thin slice 1 structure, is the columnar filter that is of stacked aftershaping, and filter bores evenly distributes on barrel, and the filter bores aperture becomes large from inside to outside gradually simultaneously, plays anti-blocking effect; Because two ends need to be fixed about not only needing during the filter moulding of cylinder circle, in order to prevent that annular thin slice 2 from also needing fixing point around breakking away, so just may cause the port of export of the filter bores device that is fixed to stop up, thereby the utility model has a ring shape blow tank 22 at the outer rim place of annular thin slice 2 lautertuns 21, meeting forms the blow tank of a circle circle after stacked at the outer wall of the filter of cylinder circle, thereby has solved the blocked problem of filter bores.

The utility model can also change by the grinding to thin slice 1 surface filtration groove the degree of depth of lautertuns, thereby realizes the change in filter bores aperture, to be applicable to the demand of the filter that difference wants; The utility model filter and thin slice are not limited to above-mentioned two kinds; be above-mentioned two kinds and be structures the most commonly used, everyly the structure of lautertuns by the filter of stacked fixedly shape filter bores is set all because belonging to protection category of the present utility model at thin slice.

Claims

1. the filter of a plastic extruder, it is characterized in that: filter adopts some sheet laminations fixedly to form, and every plate sheet simultaneously is smooth flat, and another side is provided with the lautertuns that evenly gathers.

2. the filter of a kind of plastic extruder as claimed in claim 1, it is characterized in that: the notch of described lautertuns becomes large gradually from port to the another port.

3. the filter of a kind of plastic extruder as claimed in claim 1 or 2, it is characterized in that: described thin slice is annular, and described annular thin slice lautertuns outside notch is greater than the notch of inboard.

4. the filter of a kind of plastic extruder as claimed in claim 3 is characterized in that: have a ring shape blow tank at the outer rim place of described annular thin slice lautertuns.

5. the filter of a kind of plastic extruder as claimed in claim 1 or 2 is characterized in that: the described thin slice thin slice that is rectangle.

6. the filter of a kind of plastic extruder as claimed in claim 5, it is characterized in that: the edge in larger slot mouth one side on described rectangle thin slice offers blow tank.