CN203994635U - A kind of polyethylene (PE) is three-layer co-extruded goes out mould - Google Patents
A kind of polyethylene (PE) is three-layer co-extruded goes out mould Download PDFInfo
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- CN203994635U CN203994635U CN201420311736.6U CN201420311736U CN203994635U CN 203994635 U CN203994635 U CN 203994635U CN 201420311736 U CN201420311736 U CN 201420311736U CN 203994635 U CN203994635 U CN 203994635U
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- mould
- layer
- mouthful
- tubing
- plug
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Abstract
The utility model proposes that a kind of polyethylene is three-layer co-extruded goes out mould, comprise main body, pay body, mouthful mould and plug, wherein main body comprise that tubing is outer, internal layer extruder charging aperture and little centrum, large centrum; Pay body and comprise tubing intermediate layer extruder charging aperture, outer conveyor screw, internal layer conveyor screw, intermediate layer conveyor screw, colo(u)r streak body, intermediate feed plug, the cone of confluxing, standby cap; Wherein said main body is connected with described pair of body by soket head cap screw, and described pair of body is connected with mouth mould with soket head cap screw by a mouthful mould adjustment ring, a mouthful mold pressing ring, and described intermediate feed plug is connected with plug with standby cap and nut by cover.The utility model has overcome the seam flow liner phenomenon of stent-type composite co-extruding mould, and tubing compression strength, the ring stiffness produced improve greatly; Each layer of uniform feeding, wall thickness are consistent, have improved pipe workpiece quality; Recycle polyethylene material can be used in intermediate layer simultaneously, has reduced production cost.
Description
Technical field
The utility model relates to tube forming apparatus field, particularly relates to that a kind of polyethylene (PE) is three-layer co-extruded goes out mould.
Background technology
In prior art, there is twice shunting support in common three-layer polyethylene (PE) pipe mold inside configuration, polyethylene melt is when through shunting support place, polyethylene melt is connected muscle separately, together with convergeing to again, on the tubing outer round surface of producing, just formed bonding crack flow liner like this after muscle.
The existence of bonding crack, has not only affected the outward appearance of tubing, and has had influence on ring stiffness and the compression strength of tubing.Therefore utilize the polyvinyl piping materials that existing mold is produced generally can only be applied to draining, blowdown, electric power sheath etc. without pressure field, and can not be applied to combustion gas, feedwater can have the medium transport pipeline of pressure, the poly range of application of producing is restricted.
In addition, existing mold is in producing the process of three-layer polyethylene tubing, in the middle of when intermediate layer polyethylene is extruded the entrance of material and opposite side in the middle of the extrusion pressure of material different, so the mobile speed of this two places polyethylene melt is just difficult to reach unanimously, will produce so the inclined to one side wall thickness phenomenon of tubing.
Moreover in stent-type composite co-extruding mould, melt flow rate is fast, melt time of staying in mould is short, so plasticizing capacity is poor.
Utility model content
The utility model proposes that a kind of polyethylene is three-layer co-extruded goes out mould, solved the above problem of polyvinyl piping materials processing in prior art.
The technical solution of the utility model is as follows:
Polyethylene is three-layer co-extruded goes out a mould, comprises main body, pays body, mouthful mould and plug, wherein
Main body comprises tubing skin, internal layer extruder charging aperture and little centrum, large centrum;
Pay body and comprise tubing intermediate layer extruder charging aperture, outer conveyor screw, internal layer conveyor screw, intermediate layer conveyor screw, colo(u)r streak body, intermediate feed plug, the cone of confluxing, standby cap;
Wherein said main body is connected with described pair of body by soket head cap screw, and described pair of body is connected with mouth mould with soket head cap screw by a mouthful mould adjustment ring, a mouthful mold pressing ring, and described intermediate feed plug is connected with plug with standby cap and nut by cover.
As a preferred embodiment of technique scheme, the tube outer diameter of described mouthful of mould production is ∮ 75cm-∮ 200cm.External diameter is that the tubing of ∮ 75cm-∮ 200cm has good practicality and ring stiffness, is widely used in production and life.
As a preferred embodiment of technique scheme, described mouthful of mould is replaceable mouthful of mould.By replacement port mould, can realize inside and outside extrusion and the uniform tubing of each layer of wall thickness of middle different color and lusters, one module multiple usages.
Compared with prior art, the beneficial effects of the utility model are:
Mould skin, intermediate layer, internal layer feed adopt the charging of center convolution body, guarantee melt flow rate uniformity, melt time of staying in mould grows, is heated evenly, soffening is good, extrude stable, each layer of uniform feeding, wall thickness consistent, be convenient to adjust, improved pipe workpiece quality; The seam flow liner phenomenon that has overcome stent-type composite co-extruding mould, tubing compression strength, ring stiffness improve greatly; Recycle polyethylene or other material can rationally be used in intermediate layer, reduce cost of material and also can guarantee the smooth, attractive in appearance of tubing inside and outside wall simultaneously; Adjust mouthful mould convenient, can be used for producing the uniform tubing of ectonexine color and luster wall thickness different from intermediate layer, realize one module multiple usages.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only an embodiment of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the three-layer co-extruded overall structure profile that goes out mould of the utility model polyethylene.
In figure: 1-tubing is outer, internal layer is extruded charging aperture, the little centrum of 2-, the large centrum of 3-, 4-tubing intermediate layer extruder charging aperture, 5-intermediate layer conveyor screw, 6-internal layer conveyor screw, 7-intermediate feed core body, the 8-centrum of confluxing, 9-cover, 10-is for cap, 11-nut, 12-plug, 13-mouth mould, 14-soket head cap screw, 15-mouth mold pressing ring, 16-mouth mould adjustment ring, 17-colo(u)r streak body, the outer conveyor screw of 18-, 19-pays body, 20-soket head cap screw, 21-main body.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is further described.Wherein, accompanying drawing is only for exemplary illustration, expression be only schematic diagram, but not pictorial diagram can not be interpreted as the restriction to this patent; For embodiment of the present utility model is described better, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; For a person skilled in the art, in accompanying drawing some known configurations and explanation thereof may to omit be understandable.
The corresponding same or analogous parts of same or analogous label in the accompanying drawing of the utility model embodiment, in description of the present utility model, it will be appreciated that, if have term " on ", D score, " left side ", orientation or the position relationship of indications such as " right sides " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore the term of describing position relationship in accompanying drawing is only for exemplary illustration, can not be interpreted as the restriction to this patent, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
As shown in Figure 1, a kind of polyethylene is three-layer co-extruded goes out mould, comprise main body, pay body, mouthful mould and plug, wherein main body comprise that tubing is outer, internal layer extruder charging aperture and little centrum, large centrum; Pay body and comprise tubing intermediate layer extruder charging aperture, outer conveyor screw, internal layer conveyor screw, intermediate layer conveyor screw, colo(u)r streak body, intermediate feed plug, the cone of confluxing, standby cap; Wherein said main body is connected with described pair of body by soket head cap screw, and described pair of body is connected with mouth mould with soket head cap screw by a mouthful mould adjustment ring, a mouthful mold pressing ring, and described intermediate feed plug is connected with plug with standby cap and nut by cover.
In order to make tubing have good practicality and ring rigidity, the tube outer diameter of production should be controlled at ∮ 75cm-∮ 200cm.
In order to produce the tubing of larger diameter scope, a mouthful mould should be replaceable mouthful of mould.By to soket head cap screw and a mouthful mold pressing ring, the operation of mouthful mould adjustment ring, can replacement port mould, has so just realized the inside and outside and uniform tubing of each layer of wall thickness of middle different color and lusters of extrusion, one module multiple usages.
Using, the utility model polyethylene is three-layer co-extruded to be gone out mould and carries out tubing while producing, polyethylene melt is outer by tubing, internal layer squeezes machine inlet capable and enters mould, shunting through large centrum and little epicentral duct enters a pair body, inlet port mould after Fu Tizhong is respectively by outer conveyor screw and the effect of internal layer conveyor screw, finally forms skin and the internal layer of tubing; Meanwhile, in the middle of tubing, material melt is entered and is paid body by tubing intermediate layer extruder charging aperture, by entering intermediate feed plug after the spirochetal effect in intermediate layer, finally forms the intermediate layer of tubing.
Because skin, intermediate layer, internal layer feed adopt the charging of center convolution body, guaranteed charging melt flow rate uniformity, melt time of staying in mould grows, is heated evenly, soffening is good, extrude stable, each layer of uniform feeding, wall thickness consistent, be convenient to adjust, guarantee pipe workpiece quality.
The utility model is without shunting support, overcome stent-type composite co-extruding mould seam flow liner problem, produce tubing compression strength, ring stiffness improves greatly, the polyethylene of producing (PE) tubing extensively can be applicable to the every field such as combustion gas, feedwater, draining, blowdown, has expanded the scope of application of tubing.
Outer and internal layer can be used polyethylene raw material or good reclaimed materials, and intermediate layer charging can be added or use recycle polyethylene material by rational proportion, save production cost, also can guarantee the smooth and beautiful appearance of tubing inside and outside wall simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. polyethylene (PE) is three-layer co-extruded goes out a mould, it is characterized in that, comprises main body, pays body, mouthful mould and plug, wherein
Main body comprises tubing skin, internal layer extruder charging aperture and little centrum, large centrum;
Pay body and comprise tubing intermediate layer extruder charging aperture, outer conveyor screw, internal layer conveyor screw, intermediate layer conveyor screw, colo(u)r streak body, intermediate feed plug, the cone of confluxing, standby cap;
Wherein said main body is connected with described pair of body by soket head cap screw, and described pair of body is connected with mouth mould with soket head cap screw by a mouthful mould adjustment ring, a mouthful mold pressing ring, and described intermediate feed plug is connected with plug with standby cap and nut by cover.
2. polyethylene according to claim 1 (PE) is three-layer co-extruded goes out mould, it is characterized in that, the tube outer diameter that described mouthful of mould produced is ∮ 75cm-∮ 200cm.
3. polyethylene according to claim 1 (PE) is three-layer co-extruded goes out mould, it is characterized in that, described mouthful of mould is replaceable mouthful of mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311736.6U CN203994635U (en) | 2014-06-12 | 2014-06-12 | A kind of polyethylene (PE) is three-layer co-extruded goes out mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311736.6U CN203994635U (en) | 2014-06-12 | 2014-06-12 | A kind of polyethylene (PE) is three-layer co-extruded goes out mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203994635U true CN203994635U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420311736.6U Expired - Fee Related CN203994635U (en) | 2014-06-12 | 2014-06-12 | A kind of polyethylene (PE) is three-layer co-extruded goes out mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203994635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965816A (en) * | 2016-05-27 | 2016-09-28 | 河北莫特美橡塑科技有限公司 | Production line of three-layer hollow plastic formwork |
| CN114193734A (en) * | 2021-12-30 | 2022-03-18 | 丰果(中国)有限公司 | Three-layer high-strength antibacterial pipe extrusion die |
-
2014
- 2014-06-12 CN CN201420311736.6U patent/CN203994635U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965816A (en) * | 2016-05-27 | 2016-09-28 | 河北莫特美橡塑科技有限公司 | Production line of three-layer hollow plastic formwork |
| CN114193734A (en) * | 2021-12-30 | 2022-03-18 | 丰果(中国)有限公司 | Three-layer high-strength antibacterial pipe extrusion die |
| CN114193734B (en) * | 2021-12-30 | 2023-10-31 | 丰果(中国)有限公司 | Three-layer high-strength antibacterial pipe extrusion die |
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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: 20141210 Termination date: 20150612 |
|
| EXPY | Termination of patent right or utility model |