CN2889694Y - Cross-linked high density polyethylene pipe extrusion mould - Google Patents
Cross-linked high density polyethylene pipe extrusion mould Download PDFInfo
- Publication number
- CN2889694Y CN2889694Y CNU2005201343787U CN200520134378U CN2889694Y CN 2889694 Y CN2889694 Y CN 2889694Y CN U2005201343787 U CNU2005201343787 U CN U2005201343787U CN 200520134378 U CN200520134378 U CN 200520134378U CN 2889694 Y CN2889694 Y CN 2889694Y
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- mould
- high density
- density polyethylene
- die
- cross linking
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an extrusion mould for producing crosslinked high density polyethylene pipe. The extrusion mould comprises a bridge mould, a forming mould and a feeding mould perpendicular to the axial line of the bridge mould and the forming mould. The bridge mould is composed of a mould body and a middle sheath, the forming mould is composed of a mouth mould and a mould core provided with vent holes in the middle, forming a smooth pass therein. From the bridge mould to the forming mould, the diameter at both ends is constant, the diameter in the middle part is reduced gradually, the space between the mouth mould and the mould core is gradually reduced from the diameter-changing part to the diameter-constant part, and the discharging port of the feeding mould is skew crossing in a acute angel with the bottom of the bridge mould. The utility model is suitable for connection family mould from the extruding machine to crosslinking irradiate tower.
Description
Technical field
The utility model relates to a kind of mould, especially relates to a kind of extrusion die that is used to produce crosslinked high density polyethylene pipe.
Background technology
Aspect industry and civil pipeline, polyvinyl piping materials has obtained application more and more widely.In order to improve existing polyvinyl piping materials performance, irradiation crosslinking technological is developed.Irradiation technique in the polyethylene pipe cross-linking radiation production line adopts moving both vertically of vertical structure, joining preceding road technology--the direct of travel of extruding of extruder is horizontal movement and with it, like this, be expressed into from pipeline and carry out cross-linking radiation and need a steering procedure.The pipe that needs in normal circumstances to come out from extruder directly turns to, this problem with regard to existing one to make pipe produce distortion in steering procedure.
Summary of the invention
Main purpose of the present utility model is: overcome the technical problem of above-mentioned pipe deformation, thereby provide a kind of directly and the extrusion die of the crosslinked high density polyethylene pipe of cross-linking radiation process matching.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of Cross Linking High Density Polyethylene Tube Extrusion Die, comprise stage die and shaping mould, stage die is made up of die body and middle cover, shaping mould is made up of mouth mould and the middle core rod that is provided with passage, form smooth combination therebetween, it is characterized in that: described die body one side is provided with the charging mould with the core rod axis normal.The charging mould is actually the extension body of extruder, its center line and core rod axis normal.
The technical solution of the utility model can also be further perfect, and as preferably, described stage die is to the material footpath of shaping mould, and its two ends are reducing not, and the centre is by dwindling moulding greatly gradually.Make it form certain compression process.
As preferably, the gap between described mouthful of mould and the core rod, from reducing partly to reducing not partly by dwindling greatly gradually.Reach the purpose of compression.
As preferably, the discharging opening of described charging mould and the helicoid of stage die are the acute angle oblique.Make it in the discharging process, not produce the dead angle.
As preferably, be provided with convex shoulder in mouth mould bottom with the die body junction, on the described convex shoulder pressure ring is housed, between adopt screw to connect.
As preferably, the charging aperture of described charging mould connects with extruder.
Therefore, the beneficial effects of the utility model are: owing to adopted the right angle extrusion die, making the pipe that comes out through extrusion die from extruder is vertical direction, consistent with the technological process direction of cross-linking radiation tower, does not therefore have the pipe deformation problem.
Description of drawings
Accompanying drawing 1 is a profile of the present utility model;
Accompanying drawing 2 is vertical views of the present utility model.
The specific embodiment
Below by embodiment also in conjunction with the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment: extrusion die as shown in Figure 1 and Figure 2, combine by stage die and shaping mould, form smooth combination between two parts, be provided with convex shoulder in mouth mould 21 bottoms and die body 11 junctions, pressure ring 5 is housed on the convex shoulder, between adopt screw that stage die and shaping mould are linked together.Die body 11 1 sides are provided with charging aperture 3, the axis normal of the center line of charging aperture 3 and core rod 22, so this extrusion die also can be described as the right angle extrusion die.Charging aperture 3 connects with extruder, and stage die is made up of the die body 11 of outside and the middle cover 12 in the die body, and shaping mould is made up of the mouth mould 21 and the middle core rod 22 of outside, and the centre of middle cover and core rod is provided with the passage 4 that is interconnected.The helicoid of charging aperture and stage die is the acute angle oblique, makes the material of extruding from the charging mould and delivering to stage die can not produce the dead angle.Material footpath from the stage die to the shaping mould, the diameter at its two ends is constant, and the centre arrives the typing diameter by dwindling greatly gradually, makes it form certain compression process.Gap between mouthful mould 21 and the core rod 22 partly adheres to specification to reach the purpose of supercharging, to make the pipe that leaves extrusion die by dwindling greatly gradually to reducing part not from reducing.Passage 4 in the middle of the core rod is used for to the pipe ventilation in order to avoid distortion.
Claims (6)
1. Cross Linking High Density Polyethylene Tube Extrusion Die, comprise stage die and shaping mould, stage die is made up of die body (11) and middle cover (12), shaping mould is made up of the core rod (22) that mouth mould (21) and centre are provided with passage (4), form smooth combination therebetween, it is characterized in that: described die body (11) one sides are provided with charging aperture (3), the axis normal of the center line of described charging aperture (3) and core rod (22).
2. Cross Linking High Density Polyethylene Tube Extrusion Die according to claim 1 is characterized in that: described stage die is to the material of shaping mould footpath, and its two ends are reducing not, and the centre is by dwindling moulding greatly gradually.
3. Cross Linking High Density Polyethylene Tube Extrusion Die according to claim 1 and 2 is characterized in that: the gap between described mouthful mould (21) and the core rod (22), from reducing partly to reducing part not by dwindling greatly gradually.
4. Cross Linking High Density Polyethylene Tube Extrusion Die according to claim 1 is characterized in that: described charging aperture (3) is the acute angle oblique with the helicoid of stage die.
5. Cross Linking High Density Polyethylene Tube Extrusion Die according to claim 1 and 2 is characterized in that: be provided with convex shoulder in mouth mould (21) bottom and die body (11) junction, pressure ring (5) be housed on the described convex shoulder, between adopt screw to connect.
6. according to claim 1 or 4 described Cross Linking High Density Polyethylene Tube Extrusion Dies, it is characterized in that: described charging aperture (3) connects with extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201343787U CN2889694Y (en) | 2005-12-29 | 2005-12-29 | Cross-linked high density polyethylene pipe extrusion mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201343787U CN2889694Y (en) | 2005-12-29 | 2005-12-29 | Cross-linked high density polyethylene pipe extrusion mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2889694Y true CN2889694Y (en) | 2007-04-18 |
Family
ID=38020348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201343787U Expired - Fee Related CN2889694Y (en) | 2005-12-29 | 2005-12-29 | Cross-linked high density polyethylene pipe extrusion mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2889694Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352916B (en) * | 2007-07-24 | 2010-05-19 | 上海上丰集团有限公司 | Method for producing heat-resisting polyethylene tube |
| CN107031006A (en) * | 2017-05-03 | 2017-08-11 | 浙江伏尔特医疗器械股份有限公司 | A kind of processing method of microbore catheter |
| CN109023567A (en) * | 2018-08-10 | 2018-12-18 | 浙江三星特种纺织股份有限公司 | A kind of production equipment and process of pvc pipe type film wire |
-
2005
- 2005-12-29 CN CNU2005201343787U patent/CN2889694Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352916B (en) * | 2007-07-24 | 2010-05-19 | 上海上丰集团有限公司 | Method for producing heat-resisting polyethylene tube |
| CN107031006A (en) * | 2017-05-03 | 2017-08-11 | 浙江伏尔特医疗器械股份有限公司 | A kind of processing method of microbore catheter |
| CN109023567A (en) * | 2018-08-10 | 2018-12-18 | 浙江三星特种纺织股份有限公司 | A kind of production equipment and process of pvc pipe type film wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Shuanglin Plastice Machinery Co., Ltd. Assignor: Shi Jingdong Contract fulfillment period: 2007.5.15 to 2015.12.28 Contract record no.: 2008330000953 Denomination of utility model: Cross-linked high density polyethylene pipe extrusion mould Granted publication date: 20070418 License type: Exclusive license Record date: 20081010 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.5.15 TO 2015.12.28; CHANGE OF CONTRACT Name of requester: HANGZHOU SHUANGLIN PLASTIC INDUSTRY CO., LTD. Effective date: 20081010 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 Termination date: 20131229 |