CN101579915A - Pre-setting supporting assembling die for plastic extruder - Google Patents
Pre-setting supporting assembling die for plastic extruder Download PDFInfo
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- CN101579915A CN101579915A CNA2008101004095A CN200810100409A CN101579915A CN 101579915 A CN101579915 A CN 101579915A CN A2008101004095 A CNA2008101004095 A CN A2008101004095A CN 200810100409 A CN200810100409 A CN 200810100409A CN 101579915 A CN101579915 A CN 101579915A
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- plastic extruder
- mould
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Abstract
The invention belongs to plastic extruders for producing plastic pipes, in particular to a pre-setting supporting assembling die for a plastic extruder. The die comprises a neck ring mold and a core rod and is characterized in that the outlet end face of the core rod is longer than the outlet end face of the neck ring mold, and a supporting section M is formed between the outlet end face of the neck ring mold and a calibrating sheath; the outlet end face of the core rod is arranged in the calibrating sheath, and the core rod forms a coincidence section with the calibrating sheath; and the outlet end face of the neck ring mold is provided with a cooling medium cavity as well as a medium inlet and a medium outlet which are communicated with the cooling medium cavity. The invention can be used for producing various plastic pipes made of PVC, PE, PPR, and the like. The invention has the advantage that the production rate is obviously enhanced and the yield is greatly enhanced without changing the original production technology, equipment and material formulation; in addition, produced products have good flexibility and high pressive strength and do not have fluff and protuberance, and the outer walls of the products are smooth and have good brightness.
Description
Technical field
The invention belongs to and make the plastic extruder that plastic pipe uses, specifically a kind of pre-setting supporting assembling die for plastic extruder.
Background technology
In recent years, just obtaining wideling popularize development and use in China with the thermoplastic of synthetic materials such as polyvinyl chloride resin, its process equipment and processing technology are just progressively improved and raising.Especially aspect the plastic conduit goods, novel plastics such as PVC, PE, PPR just substitute the virgin metal pipeline rapidly with its remarkable advantage.Along with the raising of plastic extruder power, and add the regenerated plastics micelle in the composition of raw materials of goods, the stability of extruding to extruder proposes higher requirement in process of production, and the rate that manufactures a finished product also needs to improve.
Existing plastic extruder, the mouth mould of its extrusion die port of export is concordant substantially with the end face of plug, and a mouthful mould also is referred to as external mold, and plug also is referred to as internal mold; In the production process of working continuously, transition distance between extrusion die discharging opening and the calibration sleeve charging aperture is generally 20 centimetres, about 200 ℃ the high temperature reproduced goods plastic pipe that extrusion die is extruded is gone through and is directly entered the calibration sleeve that is arranged in the cold water about 25 ℃ behind the transition distance about 20 centimetres and finalize the design rapidly, because of temperature contrast too big, plastic products be easy to generate stress concentration, the product embrittlement, pliability is poor, density is low, intensity is low; When calibration sleeve vacuumized, the through hole that the sizing jacket wall is provided with made the outer wall of the tubing bag that fluffed easily, and it is bright and clean that outer wall is owed; Main is along with add regenerated plastics in the composition of raw materials of goods, inevitably contain a spot of impurity in the regenerated plastics, when the tube material and tube wall of making is thin, impurity can produce aperture on the tube wall of high temperature reproduced goods tubing, make and enter air in the pipe, owing to do not support in the pipe, this section tubing enters calibration sleeve, can be under vacuum action that its suction is flat, thus between extrusion die discharging opening and calibration sleeve charging aperture, form windrow, produce waste product, although the waste product that produces in the production process can be recycled, the link that puts into production again, but cause production efficiency low, speed of production is low, manufacturer's production cost is improved, and economic benefit descends.The applicant goes through research of technique in several years, has solved above-mentioned technical problem.
Summary of the invention
In sum, the technical problem to be solved in the present invention is to provide a kind of can effectively improve yield rate, improve speed of production, guarantee the stable pre-setting supporting assembling die for plastic extruder of extruding, and the plastic pipe of manufacturing is shaped well, quality is high.
The present invention solves the problems of the technologies described above the technical scheme of being taked: a kind of pre-setting supporting assembling die for plastic extruder, comprise mouthful mould and plug, it is characterized in that: the plug exit end face is longer than a mouthful mould exit end face, constitutes supporting section M between mouthful mould exit end face and the calibration sleeve; The plug exit end face is positioned at calibration sleeve, and plug and calibration sleeve constitute superposition section.
The of the present invention mouthful of mould port of export is provided with the refrigerant cavity, and mouthful mould port of export is provided with medium import and the medium outlet that is connected with the refrigerant cavity.
Because plug exit end face of the present invention is longer than a mouthful mould exit end face, the plug exit end face is positioned at calibration sleeve, between extrusion die discharging opening and calibration sleeve charging aperture, there is plug to support, the high temperature reproduced goods plastic pipe of extruding from mould, even the aperture that has impurity to produce on the tube wall, owing to still have plug to support in the pipe, to entering calibration sleeve behind the high temperature reproduced goods plastic pipe pre-setting, and plug and sizing are with a superposition section, vacuumize it can not inhaled flat, eliminated the bad phenomenon that between extrusion die discharging opening and calibration sleeve charging aperture, forms windrow, guarantee stable extruding, enhance productivity effectively and speed of production, eliminated and handled down time that windrow causes and feed back is reprocessed needed production cost, thereby improved manufacturer's economic benefit.
Because the of the present invention mouthful of mould port of export is provided with the refrigerant cavity, import cooling media matter from the medium import to the circulation of refrigerant cavity, after about 200 ℃ the reproduced goods plastic pipe that extrusion die is extruded tentatively cools off through the present invention, enter the calibration sleeve typing that is arranged in the cold water about 25 ℃ again, the high temperature reproduced goods plastic pipe of extruding is progressively lowered the temperature, eliminated stress and concentrated.The present invention can be used for the making of various raw material plastic pipes such as PVC, PE, PPR.
The present invention has produced product, and dropping into plastic pipe manufactures, under the prerequisite that does not change original production technology, equipment and composition of raw materials, speed of production obviously improves, yield rate increases substantially, and the product pliability of producing is good, compression strength is high, has eliminated the bag that fluffed, and the product outer wall is bright and clean, brightness good.
Description of drawings
Fig. 1 is a structural representation of the present invention,
Fig. 2 is another kind of structural representation of the present invention.
Among the figure: 1-mouth mould, 2-plug, 3-calibration sleeve, 4-dismounting nut, 5-refrigerant cavity, the import of 6-medium, the outlet of 7-medium, 8-isolation channel, 9-internal thread, 10-external screw thread, 11-thermometer hole, M-supporting section, L-superposition section.
The specific embodiment
As shown in Figure 1: a kind of pre-setting supporting assembling die for plastic extruder, comprise mouthful mould 1 and plug 2, plug 2 exit end faces are longer than mouthful mould 1 exit end face, plug 2 exit end faces are positioned at calibration sleeve 3, plug 2 constitutes superposition section L with calibration sleeve 3, and plug 2 constitutes supporting section M between extrusion die discharging opening and calibration sleeve 3.This supporting section M enters calibration sleeve after making high temperature reproduced goods plastic pipe pre-setting, vacuumizes it not to be inhaled flatly, has eliminated between extrusion die discharging opening and calibration sleeve charging aperture the bad phenomenon that forms windrow.Mouth mould 1 port of export is provided with refrigerant cavity 5, and mouthful mould 1 port of export is provided with the medium import 6 and medium outlet 7 that is connected with refrigerant cavity 5.
As of the present invention perfect, on mouthful mould 1, the back position of refrigerant cavity 5 is provided with isolation channel 8, and the temperature of mouthful mould 1 main body is reliably guaranteed.
Claims (7)
1, a kind of pre-setting supporting assembling die for plastic extruder comprises mouthful mould and plug, it is characterized in that: described plug (2) exit end face is longer than described mouthful of mould (1) exit end face, constitutes supporting section M between described mouth mould (1) exit end face and the calibration sleeve (3); Described plug (2) exit end face is positioned at described calibration sleeve (3), and described plug (2) constitutes superposition section L with described calibration sleeve (3).
2, pre-setting supporting assembling die for plastic extruder as claimed in claim 1, it is characterized in that: described mouthful of mould (1) port of export is provided with refrigerant cavity (5), and described mouthful of mould (1) port of export is provided with the medium import (6) and medium outlets (7) that is connected with described refrigerant cavity (5).
3, pre-setting supporting assembling die for plastic extruder as claimed in claim 2 is characterized in that: described mouthful of mould (1) gone up, the back position of described refrigerant cavity (5) is provided with isolation channel (8),
4, pre-setting supporting assembling die for plastic extruder as claimed in claim 1 is characterized in that: described supporting section M is threaded with described plug (2) main body.
5, pre-setting supporting assembling die for plastic extruder as claimed in claim 4 is characterized in that: described supporting section M front end is provided with dismounting nut (4).
6, as any described pre-setting supporting assembling die for plastic extruder of claim 1 to 5, it is characterized in that: described mouthful of mould (1) side is provided with thermometer hole (11).
7, pre-setting supporting assembling die for plastic extruder as claimed in claim 6 is characterized in that: the length of described supporting section M is 20～25 centimetres; The length of described superposition section L is 1～1.5 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101004095A CN101579915A (en) | 2008-05-14 | 2008-05-14 | Pre-setting supporting assembling die for plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101004095A CN101579915A (en) | 2008-05-14 | 2008-05-14 | Pre-setting supporting assembling die for plastic extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101579915A true CN101579915A (en) | 2009-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101004095A Pending CN101579915A (en) | 2008-05-14 | 2008-05-14 | Pre-setting supporting assembling die for plastic extruder |
Country Status (1)
| Country | Link |
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| CN (1) | CN101579915A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218808A (en) * | 2011-06-02 | 2011-10-19 | 张家港市同创机械有限公司 | Die head for manufacturing breathing mask |
| EP2658699A1 (en) * | 2010-12-30 | 2013-11-06 | Dow Global Technologies LLC | Die assembly with cooled die land |
| CN111823533A (en) * | 2020-06-19 | 2020-10-27 | 安徽博泰塑业科技有限公司 | Ultrahigh molecular weight polyethylene tubular product extrusion moulding device |
-
2008
- 2008-05-14 CN CNA2008101004095A patent/CN101579915A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2658699A1 (en) * | 2010-12-30 | 2013-11-06 | Dow Global Technologies LLC | Die assembly with cooled die land |
| EP2658699A4 (en) * | 2010-12-30 | 2015-02-25 | Dow Global Technologies Llc | Die assembly with cooled die land |
| US9978482B2 (en) | 2010-12-30 | 2018-05-22 | Dow Global Technologies Llc | Die assembly with cooled die land |
| CN102218808A (en) * | 2011-06-02 | 2011-10-19 | 张家港市同创机械有限公司 | Die head for manufacturing breathing mask |
| CN102218808B (en) * | 2011-06-02 | 2013-01-30 | 张家港市同创机械有限公司 | Die head for manufacturing breathing mask |
| CN111823533A (en) * | 2020-06-19 | 2020-10-27 | 安徽博泰塑业科技有限公司 | Ultrahigh molecular weight polyethylene tubular product extrusion moulding device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091118 |