CN201534377U - Perforated plate for PVC extrusion machines - Google Patents
Perforated plate for PVC extrusion machines Download PDFInfo
- Publication number
- CN201534377U CN201534377U CN2009202367607U CN200920236760U CN201534377U CN 201534377 U CN201534377 U CN 201534377U CN 2009202367607 U CN2009202367607 U CN 2009202367607U CN 200920236760 U CN200920236760 U CN 200920236760U CN 201534377 U CN201534377 U CN 201534377U
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- material hole
- porous plate
- perforated plate
- plate according
- internal layer
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Abstract
The utility model provides a perforated plate for PVC extrusion machines, which comprises a perforated plate main body, wherein a material passing hole arranged on the perforated plate is divided into an inner layer and an outer layer, and the inner layer material passing hole and the outer layer material passing hole are crosswise distributed. The perforated plate for PVC extrusion machines is installed between an extrusion machine connecting body and a mould head, thus melting materials with a charring material which is stuck on the surface can be fully dispersed and plasticized after passing through the perforated plate, black line and black stripes are prevented from appearing on product surfaces, and the cost increase caused by the frequent adjustment of formulas is prevented, meanwhile, the lifetime of screw rods and screw barrels of the extrusion machines is prolonged, the external appearance of products is improved, and the property of the products is enhanced.
Description
Technical field
The utility model belongs to the fittings equipment field of PVC extruder, particularly relates to a kind of porous plate of the PVC of being used for extruder.
Background technology
At the plastic shaping manufacture field, PVC is more unmanageable, need to add stabilizing agent, processing aid, lubricant, auxiliary agents such as anti-impact agent mix by the high-temperature stirring machine to be produced compound and just can deliver to extruder and process, in addition, each manufacturer can add a large amount of filler and reworked material in order to reduce production costs in compound, such compound certainly will acceleration equipment wearing and tearing, because of the extruder long-term operation, screw rod and barrel mutual friction mutually make its contact-making surface impaired, will there be damaged points in surface at barrel or screw rod, melting charge time one length of concealing this place will charing, and attached to through herein melting charge surface, melting charge is under the screw rod thrust, through connector, molding die, cooling formings such as calibration sleeve, a small amount of carbonized material finally exposes at product surface.For fear of this situation, manufacturer generally improves product appearance by the change prescription, but DeGrain.Be exactly to repair or replacing extruding machine barrel and screw rod in addition, so just can temporarily solve black line and black line problem, the time one is long, same problem can occur again after screw rod and the barrel wearing and tearing, also brings the increase on the cost simultaneously.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of PVC of being used for extruder is provided, and can effectively eliminate the porous plate of PVC extruded product surface black line and black line.
To achieve these goals, the technical scheme of employing is as follows:
A kind of porous plate that is used for the PVC extruder comprises the porous plate main body, and the material hole that is provided with on the described porous plate main body is divided into inside and outside two-layer, and internal layer material hole and outer material hole cross-distribution.
The utility model is to place a porous plate that changes melting charge flow direction and replaceable cleaning between extruder connector and die head, the ectonexine material hole of cross-distribution is set by porous plate, two-layer material hole is not the axially parallel state but intersects at a certain angle mutually, promptly be in outer field material hole and become internal layer at discharge end at the melting charge feed end, the material hole that is in internal layer at feed end becomes skin at discharge end, adopt said structure, make the melting charge through the surface adhesion carbonized material of material hole fully to divide dispersing plasticizing, make the final products surface after the extrusion molding black line and black line can not occur.
In the technique scheme, described internal layer material hole becomes angle with outer material hole with central axis.
Further, from feedstock direction, internal layer material hole and central axis angle β are 15-20 °, and outer material hole and central axis angle α are 25-30 °.
Described porous plate main body is provided with a cone projection in the center of feed end, the drift angle γ of cone is 88-92 °, and the center of cone is provided with the axial material hole with central axes.
The set internal layer material hole of porous plate main body of the present utility model evenly distributes and surrounds circle, and described outer material hole also evenly distributes and surrounds circle.
The material hole distribution density of described feed end is greater than the distribution density of discharge end material hole.
Described material hole diameter is 6-7mm.
Described material hole is provided with slight chamfering at the nose end of feed end.
Perforated plate construction compactness of the present utility model, volume is little, and easy installation and removal does not have the PVC melting charge to conceal the dead angle, reduces impurity and accumulates with burnt material, compared with prior art, has following beneficial effect:
1, the utility model has solved PVC at the method for the elimination PVC extruded product surface black line of the process technology characteristics of polyvinyl chloride resin design and black line and has extruded the frequent problem of filling a prescription or changing impaired screw rod and barrel of adjusting of processing.Prolong the service life of extruder, reduced production cost.
2, the melting charge of surface adhesion carbonized material has improved the plasticizing efficiency of melting charge through fully dividing dispersing plasticizing behind the porous plate, has avoided product surface black line and black line to occur, has improved the physical property of product.
Description of drawings
Fig. 1 is a structural representation of the present utility model, and wherein Fig. 1 (a) is the feed end structure, and Fig. 1 (b) is the discharge end structure;
Fig. 2 is a porous plate concrete structure schematic diagram, and wherein Fig. 2 (a) is the discharging end face structure, and Fig. 2 (b) is the B-B cutaway view of Fig. 2 (a), and Fig. 2 (c) is the charging end face structure, and Fig. 2 (d) is the A-A cutaway view of Fig. 2 (c).
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the porous plate schematic diagram, comprises the material hole of inside and outside two-layer symmetrical distribution, and charging one end centre bit is equipped with the cone of a projection, and there is an axial material hole at the center of cone.Feed end material hole distribution density is higher than discharge end material hole distribution density.
Fig. 2 is the perforated plate construction cutaway view, as can be seen from the figure the material hole of inside and outside two-layer symmetrical distribution is not axially parallel but intersects at a certain angle mutually, be in outer field material hole at the melting charge feed end and become internal layer at discharge end, the material hole that is in internal layer becomes skin at discharge end.Material hole and central axis form an angle.Observe from feedstock direction, internal layer material hole and central axis angle β are 15-20 °, and outer material hole and central axis angle α are 150-155 °.The cone drift angle γ of charging one end projection is 88-92 °.Between the material hole center line of discharge end internal layer symmetry apart from d less than the distance D between the material hole center line of feed end internal layer symmetry, can guarantee that like this feed end material hole distribution density is higher than discharge end material hole distribution density.Concrete data need be determined according to the extruder model.
When the utility model is used, can be directly installed between extruder connector and the die head, also can be installed in a PVC net exchanging device, be installed between extruder connector and the die head by the PVC net exchanging device, the melting charge of surface adhesion carbonized material is through fully dividing dispersing plasticizing behind the porous plate like this, avoided product surface black line and black line to occur, avoid the frequent prescription of adjusting to increase cost, simultaneously, prolong the service life of extruder screw and barrel, improve product appearance, enhance product performance.
Claims (8)
1. a porous plate that is used for the PVC extruder comprises the porous plate main body, and it is inside and outside two-layer to it is characterized in that the material hole that is provided with on the described porous plate main body is divided into, and internal layer material hole and outer material hole cross-distribution.
2. porous plate according to claim 1 is characterized in that described internal layer material hole becomes angle with outer material hole with central axis.
3. porous plate according to claim 2 is characterized in that from feedstock direction, and internal layer material hole and central axis angle β are 15-20 °, and outer material hole and central axis angle α are 25-30 °.
4. porous plate according to claim 1 is characterized in that described porous plate main body is provided with a cone projection in the center of feed end, and the drift angle γ of cone is 88-92 °, and the center of cone is provided with the axial material hole with central axes.
5. porous plate according to claim 1 is characterized in that the set internal layer material hole of porous plate main body evenly distributes and surrounds circle, and described outer material hole also evenly distributes and surrounds circle.
6. porous plate according to claim 5 is characterized in that the distribution density of the material hole distribution density of described feed end greater than the discharge end material hole.
7. porous plate according to claim 1 is characterized in that described material hole diameter is 6-7mm.
8. porous plate according to claim 1 is characterized in that described material hole is provided with slight chamfering at the nose end of feed end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202367607U CN201534377U (en) | 2009-09-30 | 2009-09-30 | Perforated plate for PVC extrusion machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202367607U CN201534377U (en) | 2009-09-30 | 2009-09-30 | Perforated plate for PVC extrusion machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201534377U true CN201534377U (en) | 2010-07-28 |
Family
ID=42534162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202367607U Expired - Fee Related CN201534377U (en) | 2009-09-30 | 2009-09-30 | Perforated plate for PVC extrusion machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201534377U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372965A (en) * | 2012-04-23 | 2013-10-30 | 安徽中天塑业有限公司 | Filter sieve technology for plum-blossom-shaped pipe mould feeding opening |
| CN103786330A (en) * | 2013-12-04 | 2014-05-14 | 安徽耐科挤出科技股份有限公司 | Supercharge mixed flow perforated plate for wood plastic profiled bar extrusion mold |
-
2009
- 2009-09-30 CN CN2009202367607U patent/CN201534377U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372965A (en) * | 2012-04-23 | 2013-10-30 | 安徽中天塑业有限公司 | Filter sieve technology for plum-blossom-shaped pipe mould feeding opening |
| CN103786330A (en) * | 2013-12-04 | 2014-05-14 | 安徽耐科挤出科技股份有限公司 | Supercharge mixed flow perforated plate for wood plastic profiled bar extrusion mold |
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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: 20100728 Termination date: 20140930 |
|
| EXPY | Termination of patent right or utility model |