CN200977720Y - Super high molecular weight polyethylene fiber multistage mixing transporting combined screw - Google Patents

Super high molecular weight polyethylene fiber multistage mixing transporting combined screw Download PDF

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Publication number
CN200977720Y
CN200977720Y CNU2006201613723U CN200620161372U CN200977720Y CN 200977720 Y CN200977720 Y CN 200977720Y CN U2006201613723 U CNU2006201613723 U CN U2006201613723U CN 200620161372 U CN200620161372 U CN 200620161372U CN 200977720 Y CN200977720 Y CN 200977720Y
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CN
China
Prior art keywords
section
mixing
transportation
molecular weight
weight polyethylene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU2006201613723U
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Chinese (zh)
Inventor
胡建国
任意
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AIDI HIGH MOLECULAR MATERIAL Co Ltd SHANDONG
Original Assignee
AIDI HIGH MOLECULAR MATERIAL Co Ltd SHANDONG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CNU2006201613723U priority Critical patent/CN200977720Y/en
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Publication of CN200977720Y publication Critical patent/CN200977720Y/en
Anticipated expiration legal-status Critical
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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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/54—Screws with additional forward-feeding elements
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/55—Screws having reverse-feeding elements
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The utility model discloses a multi-section mixing transportation composite threaded rod for super-high molecular weight polyethylene fiber, which comprises a feeding transportation section (A), a premolding section (B), a plastifying section (C), and an extruding section (D), wherein a regular spiral edge (1) is arranged on the feeding transportation section (A), and a regular spiral edge (2) is also arranged on the extruding section (D). The utility model is characterized in that the plastifying section (C) comprises a plurality of mixing transportation sections (E), wherein a reverse transportation spiral edge unit (2) is also arranged in one of the mixing transportation sections (E), and the length diameter ratio of the threaded rod is 68:1. Because the multi-section mixing transportation composite threaded rod for super-high molecular weight polyethylene fiber adopts the structure of multi-stage, multi-direction, unequal thread pitches, long mixing lead, intermittent feeding and reverse transportation pressurization, the degree of mixedness and the dispersion performance of the mixed material produced with super-high molecular weight polyethylene and the quality of the extruded product are improved.

Description

The mixing conveying assembled screw rod of superhigh molecular weight polyethylene fibers multistage
Technical field
The utility model relate to a kind of in superhigh molecular weight polyethylene fibers is produced used double screw extruder with the improvement of screw rod, the mixing conveying assembled screw rod of specifically a kind of superhigh molecular weight polyethylene fibers multistage.
Background technology
Superhigh molecular weight polyethylene fibers is owing to have high strength, high-modulus, low-density characteristics, so obtain attention more and more widely in fields such as modernized war, aerospace, aviations.In its production process, will produce superhigh molecular weight polyethylene fibers raw material and White Mineral Oil solvent and add in the stainless steel cauldron, after the heating stirring and dissolving, extrude through double screw extruder plasticizing dissolving then, make spinning solution.Wherein the employed twin-screw of extruder comprises that reinforced transportation section, preformed section, fluxing zone, extruding zone constitute, and is connected to an integral body by the key of gradually blooming, and each section screw rod all has identical outside cone angle and interior cone angle, and each section is because of different its lead differences of function.On reinforced transportation section, establish dextrorotation spiral shell rib, material is fed forward; On preformed section and fluxing zone, establish annular or rhombus or triangular hill mixed block, the material kneading mixing that will dissolve; On extruding zone, establish dextrorotation spiral shell rib, the plastifying material of kneading mixing is extruded by extruder head.This twin-screw has good forced conveyance effect, but the part that also comes with some shortcomings, main deficiency is: mixed effect is relatively poor, bad dispersibility.Trace it to its cause and be: because the groove depth and the product quality of spiral shell rib are closely related, and the direction of spiral and material dispersed, blend effect are relevant, the variation of pitch can be adjusted the speed of service and the running status of material in machine, single, the mixing helical pitch of constant, the mixing unit combination of the hand of spiral is short, then influences the quality of blend effect and extruded product; In addition, behind the molten refining material of White Mineral Oil, viscosity is bigger, so the mixing of this screw rod, kneading dynamics are all not enough, directly influences the dispersiveness and the blend effect of material, and also quality is extruded in influence.
Summary of the invention
The purpose of this utility model be to provide a kind of adopt many groups, multi-direction, pitch does not wait, mixing helical pitch long, the structure of discontinuity feeding, thereby improve pinching the dynamics of mixing and improving material mixing dispersiveness, uniformity and extrude the mixing conveying assembled screw rod of superhigh molecular weight polyethylene fibers multistage of quality of mixing material.
For reaching above purpose, the technical scheme that the utility model adopted is: the mixing conveying assembled screw rod of this superhigh molecular weight polyethylene fibers multistage, by reinforced transportation section, the preformed section, fluxing zone, extruding zone constitutes, on reinforced transportation section and extruding zone, all establish dextrorotation spiral shell rib, reinforced transportation section pushes material forward, extruding zone is extruded the material of kneading mixing in extruder head, it is characterized in that fluxing zone mixes the transportation section by the 10-14 section and is connected to form, be provided with the anti-spiral shell edge element that send in one section mixing transportation section therein, pinch mixed pressure power with increase, improve material dispersed.The utility model is also implemented by following measure: mix in the transportation section by 2-4 mixed block unit and a conveying spiral shell edge element formation at every section, and adopt the key of gradually blooming to connect successively, by a plurality of mixed block unit to mixing materials kneading repeatedly, grinding, shearing, to improve the degree of mixedness of material, and be transported in next section mixing transportation section by the conveying spiral shell edge element that is connected immediately, proceed kneading, grinding, shearing; Described mixed block unit, its geometry is wherein a kind of of cam-shaped, rhombus, fanning strip, its pile closes the direction that staggers and divides three kinds, being respectively staggers successively along the dextrorotation direction pile closes, stagger successively along the opposite direction of dextrorotation direction pile close, three kinds at interval of monolithics, mix at every section and to comprise in the transportation section that the 1-3 kind piles up the mixed block unit that closes the direction that staggers, its effect is: stagger successively to pile up along the dextrorotation direction and close, both had to pinch and mixed up usefulness, have the propelling movement effect again; Stagger successively along the opposite direction of dextrorotation direction and pile to close, both had to pinch and mixed up usefulness, have pressurization again; Monolithic mainly has shear action at interval, also has the effect of mixing, the described anti-spiral shell edge element that send is located between the 9th section mixed block unit that mixes the transportation section and the conveying spiral shell edge element, this moment, material was mixed through repeatedly stirring, pinching, had suitable uniformity, by the counter effect of sending the spiral shell edge element, make the material mixing of further pressurizeing, dispersed with further raising; Mix section and also be provided with and carry the spiral shell rib giving; The draw ratio of this screw rod is 68: 1.When using the utility model, this screw rod is established two, in the barrel of the parallel double screw extruder of packing into.
The beneficial effects of the utility model are: compare with the twin-screw of extruding that uses in superhigh molecular weight polyethylene fibers production at present, since adopted multistage, multi-direction, pitch does not wait, mixing helical pitch is long, discontinuity feeding and the counter structure of sending pressurization, so improved the quality of degree of mixedness, dispersive property and the extruded product of ultra-high molecular weight polyethylene production mixed material.
Description of drawings
Fig. 1 looks schematic diagram for the utility model structure master.
Fig. 2 is one section enlarged diagram that mixes the transportation section of the utility model.
Fig. 3 the utlity model has the anti-mixing transportation section enlarged diagram that send the spiral shell edge element.
Fig. 4 is cam-shaped, looks enlarged diagram along the dextrorotation direction structure right side of pile closing of staggering successively for the utility model mixed block unit.
Fig. 5 is cam-shaped, looks enlarged diagram along the opposite direction of the dextrorotation direction pile structure right side of closing of staggering successively for the utility model mixed block unit.
The specific embodiment
Make the utility model with reference to accompanying drawing 1,2,3,4,5.The mixing conveying assembled screw rod of this superhigh molecular weight polyethylene fibers multistage, constitute by reinforced transportation section A, preformed section B, fluxing zone C, extruding zone D, on reinforced transportation section A and extruding zone D, all establish dextrorotation spiral shell rib 1, it is characterized in that fluxing zone C mixes transportation section E by the 10-14 section and is connected to form, be provided with the anti-spiral shell edge element 2 that send among one section mixing transportation section E therein.Mix among the E of transportation section by 2-4 mixed block unit E at every section 1With a conveying spiral shell edge element E 2Constitute, and adopt the key E of gradually blooming successively 3Connect; Described mixed block unit E 1Its geometry is wherein a kind of of cam-shaped, rhombus, fanning strip, it is three kinds that its pile closes the direction that staggers, being respectively staggers successively along the dextrorotation direction pile closes, stagger successively along the opposite direction of dextrorotation direction pile close, three kinds at interval of monolithics, mix at every section and to comprise among the E of transportation section that the 1-3 kind piles up the mixed block unit E that closes the direction that staggers 1The described anti-spiral shell edge element 2 that send is located at the 9th section mixed block unit E that mixes transportation section E 1With conveying spiral shell edge element E 2Between; In giving mixed section B, also be provided with and carry the spiral shell rib; The draw ratio of this screw rod is 68: 1.Fig. 4 has provided the mixed block unit and has been cam-shaped, piles up the embodiment that closes along dextrorotation direction misfit successively, has three cam E 21, from the throughput direction end, staggering successively along the dextrorotation direction pile lumps together, and establishes the key E of gradually blooming on the right side 3It is cam-shaped that Fig. 5 has provided the mixed block unit, along the opposite direction of the dextrorotation direction pile embodiment who closes that staggers successively, have three cam E 21, from the throughput direction end, pile up along the opposite direction of dextrorotation direction misfit successively and to lump together, on the right side, establish the key key E of blooming 3

Claims (3)

1, the mixing conveying assembled screw rod of a kind of superhigh molecular weight polyethylene fibers multistage, constitute by reinforced transportation section (A), preformed section (B), fluxing zone (C), extruding zone (D), on reinforced transportation section (A) and extruding zone (D), all establish dextrorotation spiral shell rib (1), it is characterized in that fluxing zone (C) mixes transportation section (E) by the 10-14 section and is connected to form, be provided with the anti-spiral shell edge element (2) that send in one section mixing transportation section (E) therein.
2, the mixing conveying assembled screw rod of superhigh molecular weight polyethylene fibers multistage according to claim 1 is characterized in that mixing in the transportation section (E) by 2-4 mixed block unit (E at every section 1) and a conveying spiral shell edge element (E 2) constitute, and adopt the key (E of gradually blooming successively 3) connect.
3, the mixing conveying assembled screw rod of superhigh molecular weight polyethylene fibers multistage according to claim 1 and 2 is characterized in that described mixed block unit (E 1), its geometry is wherein a kind of of cam-shaped, rhombus, fanning strip, its pile closes the direction that staggers and divides three kinds, being respectively staggers successively along the dextrorotation direction pile closes, stagger successively along the opposite direction of dextrorotation direction pile close, three kinds at interval of monolithics, mix at every section and to comprise in the transportation section (E) that the 1-3 kind piles up the mixed block unit (E that closes the direction that staggers 1); The described anti-spiral shell edge element (2) that send is located at the 9th section mixed block unit (E that mixes transportation section (E) 1) and carry spiral shell edge element (E 2) between.
CNU2006201613723U 2006-12-11 2006-12-11 Super high molecular weight polyethylene fiber multistage mixing transporting combined screw Expired - Lifetime CN200977720Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2006201613723U CN200977720Y (en) 2006-12-11 2006-12-11 Super high molecular weight polyethylene fiber multistage mixing transporting combined screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2006201613723U CN200977720Y (en) 2006-12-11 2006-12-11 Super high molecular weight polyethylene fiber multistage mixing transporting combined screw

Publications (1)

Publication Number Publication Date
CN200977720Y true CN200977720Y (en) 2007-11-21

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CNU2006201613723U Expired - Lifetime CN200977720Y (en) 2006-12-11 2006-12-11 Super high molecular weight polyethylene fiber multistage mixing transporting combined screw

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101973121A (en) * 2010-08-06 2011-02-16 汕头市金兴机械有限公司 Double-screw co-rotating mixing extruder for manufacturing starch-based plastic
CN102529062A (en) * 2012-01-30 2012-07-04 天津戈瑞德新材料科技有限公司 Screw rod assembly used for extrusion processing without dry processing to nylon

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101973121A (en) * 2010-08-06 2011-02-16 汕头市金兴机械有限公司 Double-screw co-rotating mixing extruder for manufacturing starch-based plastic
CN101973121B (en) * 2010-08-06 2013-03-20 广东金兴机械有限公司 Double-screw co-rotating mixing extruder for manufacturing starch-based plastic
CN102529062A (en) * 2012-01-30 2012-07-04 天津戈瑞德新材料科技有限公司 Screw rod assembly used for extrusion processing without dry processing to nylon
CN102529062B (en) * 2012-01-30 2015-05-20 天津万塑新材料科技有限公司 Screw rod assembly used for extrusion processing without dry processing to nylon

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Ren Yi

Inventor before: Hu Jianguo

Inventor before: Ren Yi

CX01 Expiry of patent term

Granted publication date: 20071121

EXPY Termination of patent right or utility model