CN202702573U - Novel ultra-high molecular weight pipe extrusion mould - Google Patents
Novel ultra-high molecular weight pipe extrusion mould Download PDFInfo
- Publication number
- CN202702573U CN202702573U CN2012201190758U CN201220119075U CN202702573U CN 202702573 U CN202702573 U CN 202702573U CN 2012201190758 U CN2012201190758 U CN 2012201190758U CN 201220119075 U CN201220119075 U CN 201220119075U CN 202702573 U CN202702573 U CN 202702573U
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- China
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- molecular weight
- demoulding
- high molecular
- extrusion die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/87—Cooling
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a novel ultra-high molecular weight pipe extrusion mould. The novel ultra-high molecular weight pipe extrusion mould sequentially comprises a distributing section, a plastifying section, a compressing section, a forming section and a demoulding section, and is characterized by further comprising a sizing section connected with the demoulding section. The demoulding section comprises a cooling jacket. The cooling jacket comprises an inner layer and an outer layer, and the inner layer and the outer layer are clamped in double-layer mode and connected with the demoulding section. The cooling jacket comprises an inner layer and an outer layer, and the inner layer and the outer layer are clamped in double-layer mode and connected with the demoulding section through threads. With the technical scheme, the novel ultra-high molecular weight pipe extrusion mould has the advantages that extruded pipes are glossy in appearance, uniform in texture and not prone to produce degradation patterns. Compared with the prior art, appearance quality is improved greatly and straightness and roundness of the pipes can be guaranteed by means of the novel ultra-high molecular weight pipe extrusion mould.
Description
Technical field:
The utility model relates to tube extrusion die, relates in particular to a kind of novel molecular weight pipes extrusion die.
Background technology:
The field that the utility model relates to is the device that can be used for producing ultrahigh molecular weight polyethylene tubing.Belong to the field technical field of pipeline transport such as oil, mine, electric power, chemical industry, colliery, but relate in particular to a kind of production application in the processing extrusion equipment in the superhigh molecular weight polyethylene pipe road in above-mentioned field.
Ultra-high molecular weight polyethylene is a kind of macromolecular material of excellent performance, and remarkable wear-resisting, corrosion-resistant, low temperature resistant, shock resistance, non-scaling, self-lubricating, the excellent performance such as ageing-resistant are arranged.Be described as in the world magical plastics, more be described as in recent years " King " and the gesture that progressively substitutes polytetrafluoroethylene (PTFE) is arranged.The optimal material of making flak jackets, parachute is exactly ultra-high molecular weight polyethylene.Because its wearability is outstanding, also can be made into wear-resisting machine components, section bar, bar, sheet material, tubing etc.Because of the performance of its many excellence, ultrahigh molecular weight polyethylene tubing can be widely used in the fields such as colliery, mine, chemical industry, electric power, oil.Progressively approved by market in recent years, and in all trades and professions, bringing into play self due value.But the superhigh molecular weight polyethylene pipe road is because of the particularity of its material, and its melt flow rate (MFR) is zero, does not namely have flowability, is difficult to common method machine-shaping.The process of ultrahigh molecular weight polyethylene tubing has experienced from initial plunger method, die pressing screw extrusion molding finally.Though but die pressing production superelevation tubing, it is batch process, yields poorly, and power consumption is large, and pipe length is limited, can not produce continuously, and the performance of product does not reach optimum value, the bad control of production technology.In view of above various shortcoming, in recent years progressively by screw rod extrude continuously substitute.And in the Screw Extrusion, final decision tubing quality and specification be exactly the ultrahigh molecular weight polyethylene tubing extrusion die.The quality of extrusion die directly determines property indices and the exterior quality of ultrahigh molecular weight polyethylene tubing.And this novel ultrahigh molecular weight polyethylene tubing extrusion die is to improve on the basis of existing ultrahigh molecular weight polyethylene tubing extrusion die, thereby reaches the effect that improves pipe performance and exterior quality, minimizing energy consumption.Existing ultrahigh molecular weight polyethylene tubing extrusion die structure exists that solid type is bad, the easy flexural deformation of tubing or play wave.Have appearance luster inhomogeneous, the defectives such as decorative pattern are arranged.Tubing resistance in extrusion is larger, easily causes electric current to raise, and increases energy consumption.Its heating (aluminium sheet or the heating of magnetic bead heater strip) and the type of cooling (blower fan is air-cooled) also are the major reasons that causes energy consumption high.
Summary of the invention:
The purpose of utility model: in order to improve the deficiencies in the prior art, provide a kind of production, service-strong ultrahigh molecular weight polyethylene tubing extrusion die be convenient to.The tubing outward appearance that this grinding tool provides is glossy, homogeneous, be difficult for producing the degraded decorative pattern, and exterior quality promotes greatly, can guarantee that tubing is directly spent and the effect of circularity.
In order to reach as above purpose, the utility model is taked following technical scheme: comprise successively shunting section, fluxing zone, compression section, profiled section, demoulding section is characterized in that: also comprise the sizing section that links to each other with demoulding section.
The further technical scheme of the utility model is: described sizing section links to each other with demoulding section by connector.
The further technical scheme of the utility model is: described demoulding section comprises coolant jacket, and described coolant jacket comprises ectonexine, and ectonexine forms double-deck clamping and links to each other with demoulding section.
The further technical scheme of the utility model is: described coolant jacket comprises ectonexine, and ectonexine forms between double-deck clamping and its has screw thread to link to each other with demoulding section.
The further technical scheme of the utility model is: described shunting section comprises 1 section of shunting and shunts 2 sections.
The further technical scheme of the utility model is: described coolant jacket is cooling jacket.
The further technical scheme of the utility model is: described sizing section links to each other with demoulding section screw thread by connector.
Adopt as above the utility model of technical scheme, have following beneficial effect: the tubing outward appearance of extruding is glossy, homogeneous, be difficult for producing the degraded decorative pattern, and exterior quality promotes greatly.This all is that existing mold is not available.
The water-cooled design is adopted in demoulding place.Inside and outside water-cooling jacket adopts cleverly thread connecting mode, is convenient to detachable maintaining, also can exchange with other moulds.Not only improve the inconvenience that interior ventilation brings to Pipe Cutting, also avoided the use of blower fan, reduced noise, reduced the consumption of electric energy.Water-cooled directly acts on the demoulding, and is not only more air-cooled even, and cooling thoroughly, improved the bad shortcoming that causes the tubing distortion of existing mold cooling, and the while can make the tube extrusion Speed improving more than 30%, has reduced production cost, has improved production efficiency.The chuck cooling water circulation uses, and is not only energy-conservation, and environmental protection.
Diameter-setting equipment in increasing after the demoulding.This is that existing mold is unexistent.Interior diameter-setting equipment guarantees that to again finalizing the design by the tubing of water-cooled shaping and the stress elimination, reaching tubing is directly spent and the effect of circularity.Even placing under natural environment for a long time, tubing thus out also is difficult for deforming.
Compared with prior art, this novel ultrahigh molecular weight polyethylene tubing extrusion die, because it improves three links such as solid type demoulding section, cooling device, diameter-setting equipments and designs, therefore reach raising ultrahigh molecular weight polyethylene tubing performance indications, improved the good purpose of ultrahigh molecular weight polyethylene tubing exterior quality.And make the superior functions such as the high abrasion of ultrahigh molecular weight polyethylene tubing, corrosion-resistant, shock resistance, non-scaling, self-lubricating be given full play to.Solved the in the past unfavorable factor in production and processing superelevation tubing process.This extrusion die has reduced energy consumption, has improved production efficiency, overcomes the unfavorable factor that existing mold exists, and is reasonable in design, and process stabilizing is convenient to producers' operation.Reduce inconvenience and destabilizing factor that existing mold causes manual adjustment to be brought because of himself defective aborning.Thereby better guarantee product quality.
The utility model has reduced production cost, improve tubing production efficiency, performance and the exterior quality of ultrahigh molecular weight polyethylene tubing have also greatly been improved, the postorder of ultrahigh molecular weight polyethylene tubing is made (turning over all over, welding, compound bushing pipe) have laid a good foundation, expanded its application.
Description of drawings:
In order to further specify the utility model, further describe below in conjunction with accompanying drawing:
Accompanying drawing is the structural representation of utility model:
Wherein: 1, shunting is 1 section; 2, shunting is 2 sections; 3, fluxing zone; 4, compression section; 5, profiled section; 6, demoulding section; 7, coolant jacket; 8, sizing section.
The specific embodiment:
Below in conjunction with accompanying drawing embodiment of the present utility model is described, embodiment does not consist of restriction of the present utility model:
Comprise successively shunting section, fluxing zone 3, compression section 4, profiled section 5, demoulding section 6 is characterized in that: also comprise the sizing section 8 that links to each other with demoulding section 6.
Described sizing section 8 links to each other with demoulding section 6 by connector.Can be that to be threaded also can be other connections.
The further technical scheme of the utility model is: described demoulding section comprises coolant jacket 7, and described coolant jacket 7 comprises ectonexine, and ectonexine forms double-deck clamping and links to each other with demoulding section 6.
The further technical scheme of the utility model is: described coolant jacket 7 comprises ectonexine, and ectonexine forms between double-deck clamping and its has screw thread to link to each other with demoulding section 6.Inside and outside water-cooled is threaded so that the water-cooled better effects if.
The further technical scheme of the utility model is: described shunting section comprises 1 section 1 of shunting and shunts 2 section 2.
The further technical scheme of the utility model is: described sizing section 8 links to each other with demoulding section 6 screw threads by connector.
This novel ultrahigh molecular weight polyethylene tubing extrusion die partly is made of 1 section 1 of shunting, 2 section 2 of shunting, fluxing zone 3, compression section 4, profiled section 5, demoulding section (inside and outside cooling jacket), sizing section 8 etc., finishes material and compiles the technical process such as shunting, plasticizing, compression, moulding, demoulding cooling, typing.Mould inner pressure is 40MPa, and mould adopts that No. 40 steel are modified to forge processing, and mould connects and adopts the border strengthening stud, and the dish docking of endoporus rim of the mouth interlocks, and prevents the excessive leakage material of pressure.After material enters mould by single screw extrusion machine, after the 7 section dies processing typings such as 1 section of shunting, 2 sections of shuntings, fluxing zone, compression section, profiled section, demoulding section (and adopting inside and outside water-cooled shaping), sizing section, finish finished product by the scale cutting at last and make.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. novel molecular weight pipes extrusion die, comprise successively shunting section, fluxing zone (3), compression section (4), profiled section (5), demoulding section (6) is characterized in that: also comprise the sizing section (8) that links to each other with demoulding section (6).
2. a kind of novel molecular weight pipes extrusion die as claimed in claim 1, it is characterized in that: described sizing section (8) links to each other with demoulding section (6) by connector.
3. a kind of novel molecular weight pipes extrusion die as claimed in claim 1, it is characterized in that: described demoulding section comprises coolant jacket (7), described coolant jacket (7) comprises ectonexine, and ectonexine forms double-deck clamping and links to each other with demoulding section (6).
4. a kind of novel molecular weight pipes extrusion die as claimed in claim 3, it is characterized in that: described coolant jacket (7) comprises ectonexine, and ectonexine forms between double-deck clamping and its has screw thread to link to each other with demoulding section (6).
5. a kind of novel molecular weight pipes extrusion die as claimed in claim 1 is characterized in that: described shunting section comprises shunting 1 section (1) and shunts 2 sections (2).
6. a kind of novel molecular weight pipes extrusion die as claimed in claim 3, it is characterized in that: described coolant jacket (7) is cooling jacket.
7. a kind of novel molecular weight pipes extrusion die as claimed in claim 2, it is characterized in that: described sizing section (8) links to each other with demoulding section (6) screw thread by connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201190758U CN202702573U (en) | 2012-03-27 | 2012-03-27 | Novel ultra-high molecular weight pipe extrusion mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201190758U CN202702573U (en) | 2012-03-27 | 2012-03-27 | Novel ultra-high molecular weight pipe extrusion mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202702573U true CN202702573U (en) | 2013-01-30 |
Family
ID=47582909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201190758U Expired - Fee Related CN202702573U (en) | 2012-03-27 | 2012-03-27 | Novel ultra-high molecular weight pipe extrusion mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202702573U (en) |
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2012
- 2012-03-27 CN CN2012201190758U patent/CN202702573U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: He Yanni Document name: Notification to Go Through Formalities of Registration |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20140327 |