CN102490341B - Tapered double machine barrel - Google Patents

Tapered double machine barrel Download PDF

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Publication number
CN102490341B
CN102490341B CN201110438197.3A CN201110438197A CN102490341B CN 102490341 B CN102490341 B CN 102490341B CN 201110438197 A CN201110438197 A CN 201110438197A CN 102490341 B CN102490341 B CN 102490341B
Authority
CN
China
Prior art keywords
machine barrel
zone
wear rib
extruding zone
double machine
Prior art date
Application number
CN201110438197.3A
Other languages
Chinese (zh)
Other versions
CN102490341A (en
Inventor
后桂根
夏增富
Original Assignee
浙江华业塑料机械有限公司
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
Application filed by 浙江华业塑料机械有限公司 filed Critical 浙江华业塑料机械有限公司
Priority to CN201110438197.3A priority Critical patent/CN102490341B/en
Publication of CN102490341A publication Critical patent/CN102490341A/en
Application granted granted Critical
Publication of CN102490341B publication Critical patent/CN102490341B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/41Intermeshing counter-rotating screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders

Abstract

The invention provides a tapered double machine barrel, which comprises a charging segment (I), a fusion segment (II), a homogenizing segment (III) and an extrusion segment (IV). The tapered double machine barrel is characterized in that a wear resistant strip (1) with a strip shape is axially embedded on the inner wall of an inner hole of the extrusion segment (IV), the arc surface of the wear resistant strip and the inner wall surface of the inner hole corresponding to the extrusion segment (IV) are positioned on a same periphery. Compared with the prior art, the tapered double machine barrel has the advantages that the wear resistant strip is embedded on the inner wall of the extrusion segment, thereby the problems of easy shedding and easy wearing of alloy powder caused by that the extrusion segment is coated with the alloy powder in the prior art can be avoided, the wear resistance is more than 5 times higher than that of an alloy steel; the machine barrel can be divided into twp parts, so that the maintenance is convenient. The generation of wearing appears in the extrusion segment under general case, when the wearing appears, the extrusion segment of the machine barrel can be disassembled. The new ceramic blocks are used for replacing, the time is saved, and the production cost can be reduced.

Description

A kind of cone double machine barrel
Technical field
The present invention relates to a kind of manufacture technology field of machine barrel, especially refer to a kind of cone double machine barrel.
Background technology
Existing a kind of patent No. is 200820084388.8 and is called that the Chinese utility model patent of " having the extruder of tungsten carbide cone twin-screw and machine barrel " discloses a kind of cone twin-screw and supporting machine barrel thereof, its structure includes cone double machine barrel head and cone twin-screw, the inner chamber spun casting of this cone double machine barrel head has diamondite layer, and the surface of cone twin-screw is also coated with diamondite layer.This utility model adopts spun casting diamondite technique, the new and high technologies such as supersonic speed hot-spraying technique, and machine barrel and screw rod have high abrasion, corrosion-resistant.But coming off and wear phenomenon easily appears in this alloy-layer, in addition, this cone double machine barrel is whole piece processing, and generally wearing and tearing are to appear at leading portion, if there is wearing and tearing, need integral replacing, both lost time, and increased again cost, therefore its structure needs to improve.
Summary of the invention
Technical problem to be solved by this invention is to provide for above-mentioned prior art present situation that a kind of anti-wear performance is good, the cone double machine barrel of long service life.
The present invention solves the problems of the technologies described above adopted technical scheme for this kind of cone double machine barrel, include feeding section, melt zone, homogenizing zone, extruding zone, it is characterized in that: on the endoporus inwall of described extruding zone, be axially inlaid with the wear rib of bar shaped, the surperficial arc surface of described wear rib is positioned on same periphery with the corresponding endoporus inner wall surface of extruding zone.
As improvement, described wear rib is 2, each distribution one on two machine barrel endoporus inwalls of extruding zone, and the arc length of the radial section of every wear rib is greater than 1/6th of the whole circumference of corresponding endoporus inwall, and is less than 1/3rd of whole circumference.
Improve, the radial section of described wear rib is arch-shaped again, and the two ends, left and right of circular arc connect respectively swallow-tailed hypotenuse, and the angle between this two hypotenuse is 90 °, together with described wear rib fits in the groove on extruding zone endoporus inwall.
Improve again, the thickness difference at the two ends, left and right of described wear rib, one end that thickness is little is positioned at the port position of extruding zone.
Improve, the deflection angle forming between the vertical vertical line in the arcuate midway point of the radial section of described wear rib and the line in the center of circle and excessively this center of circle is 10 ° again, and the wear rib of described the right and left is respectively with outside inflection point setting.
Improve, the axial length of described wear rib equals the axial length of extruding zone again.
Improve, described wear rib is ceramic panel again.
Improve, described ceramic panel is zirconia ceramics bar again.
Improve, described extruding zone is that dismountable type is connected with homogenizing zone again.
Improve again, the structure that described dismountable type connects is: on the end face of described extruding zone, be provided with screw, on the end face of described homogenizing zone, be also provided with the fixing hole corresponding with screwhole position, between screw and fixing hole, pass through bolt or screw rod by fixed with each other to extruding zone and homogenizing zone.
Compared with prior art, the invention has the advantages that: the extruding zone inwall of this machine barrel is inlayed wear rib, avoided the alloyed powder that in prior art, extruding zone brushing alloyed powder causes easily to come off and problem easy to wear, its anti-wear performance is higher than steel alloy more than 5 times; Secondly, the removable two parts that are divided into of machine barrel, keep in repair very convenient, the wearing and tearing of machine barrel all appear at extruding zone, in the time that wearing and tearing appear in machine barrel, only with the extruding zone of dismantling lower machine barrel, replace with the new extruding zone that is inlaid with ceramic block, both saved time, reduced again the production cost of equipment simultaneously.
Brief description of the drawings
Fig. 1 is the partial sectional view of the embodiment of the present invention;
Fig. 2 is the structural representation of the extruding zone in Fig. 1;
Fig. 3 is that B in Fig. 2 is to perspective view;
Fig. 4 is that A in Fig. 2 is to perspective view;
Fig. 5 is the side projection figure of the wear rib in Fig. 1;
Fig. 6 is that M in Fig. 5 is to perspective view;
Fig. 7 is that N in Fig. 5 is to perspective view.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
As shown in Figures 1 to 7, the cone double machine barrel of the present embodiment, include feeding section I, melt zone II, homogenizing zone III, extruding zone IV, on endoporus 2 inwalls 21 of extruding zone IV, be axially inlaid with the wear rib 1 of 2 bar shapeds, the surperficial arc surface 1a of wear rib 1 is positioned on same periphery with the corresponding endoporus of extruding zone IV 2 inwall 21 surfaces.Two wear ribs 1 each distribution one on two machine barrel endoporus inwalls of extruding zone IV, the arc length of the radial section of every wear rib 1 is greater than 1/6th of corresponding endoporus 2 inwall 21 whole circumferences, and is less than 1/3rd of whole circumference.The radial section of wear rib 1 is arch-shaped, and the two ends, left and right of circular arc connect respectively swallow-tailed hypotenuse 1b, and the angle α between this two hypotenuse 1b is 90 °, together with wear rib 1 fits in the groove on extruding zone IV endoporus 2 inwalls 21.The thickness difference at the two ends, left and right of wear rib 1, one end of little thickness s is positioned at the end position of extruding zone IV, and one end of large thickness d is positioned on the extruding zone end with homogenizing zone connection.The deflection angle β forming between the vertical vertical line 12 in the arcuate midway point of the radial section of wear rib 1 and the line in the center of circle 11 and excessively this center of circle is 10 °, and the wear rib 1 of the right and left is respectively with outside inflection point setting.The axial length of wear rib 1 equals the axial length of extruding zone IV.Wear rib 1 is zirconia ceramics bar.
Above-mentioned extruding zone IV is that dismountable type is connected with homogenizing zone III, the structure that dismountable type connects is: on the end face of extruding zone IV, be provided with screw 3, on the end face of homogenizing zone III, be also provided with the fixing hole corresponding with screw 3 positions, between screw 3 and fixing hole, pass through bolt or screw rod by fixed with each other to extruding zone IV and homogenizing zone III.
This cone double machine barrel also possesses following characteristics:
1, the thickness of ceramic block has adopted concentric reducer design, when installation, only the small end of ceramic block need be inserted along A direction, can take out in the other direction.
2, the groove of machine barrel extruding zone, with 90 ° of dovetails, can make ceramic block fitting tight, not come off.Because of according to cone twin-screw incorgruous outside operating characteristic, the position the most easy to wear of machine barrel is position, outer 10 ° of left and right partially up, and edge ceramic block position of the present invention and width have comprised damageable zone.
3, this cone double machine barrel can field maintenance be changed damageable zone, only the bolt of the junction of homogenizing zone and extruding zone need be unclamped, and extruding zone can be separated from overall machine barrel, then pound out along B direction the ceramic block having worn and torn, be i.e. replaceable new ceramic block.This cone double machine barrel is applicable to the two products of extruding of various cones, and in the time extruding for PE wood-plastic products, effect is best.

Claims (7)

1. a cone double machine barrel, include feeding section (I), melt zone (II), homogenizing zone (III), extruding zone (IV), it is characterized in that: on endoporus (2) inwall (21) of described extruding zone (IV), be axially inlaid with the wear rib (1) of bar shaped, the surperficial arc surface (1a) of described wear rib (1) is positioned on same periphery with corresponding endoporus (2) inwall (21) surface of extruding zone (IV); Described wear rib (1) is 2, one of each distribution on two machine barrel endoporus (2) inwalls (21) of extruding zone (IV), the arc length of the radial section of every wear rib (1) is greater than 1/6th of the whole circumference of corresponding endoporus (2) inwall (21), and is less than 1/3rd of whole circumference; The radial section of described wear rib (1) is arch-shaped, the two ends, left and right of circular arc connect respectively swallow-tailed hypotenuse (1b), angle (α) between this two hypotenuse (1b) is 90 °, together with described wear rib (1) fits in the groove on extruding zone (IV) endoporus (2) inwall (21); The deflection angle (β) forming between the vertical vertical line (12) in the arcuate midway point of radial section of described wear rib (1) and the line in the center of circle (11) and excessively this center of circle is 10 °, and the wear rib (1) of described the right and left is respectively with outside inflection point setting.
2. cone double machine barrel according to claim 1, is characterized in that: the thickness difference at the two ends, left and right of described wear rib (1), one end that thickness is little is positioned at the end position of extruding zone (IV).
3. cone double machine barrel according to claim 2, is characterized in that: the axial length of described wear rib (1) equals the axial length of extruding zone (IV).
4. according to the cone double machine barrel described in arbitrary claim in claims 1 to 3, it is characterized in that: described wear rib (1) is ceramic panel.
5. cone double machine barrel according to claim 4, is characterized in that: described ceramic panel is zirconia ceramics bar.
6. according to arbitrary described cone double machine barrel in claims 1 to 3, it is characterized in that: described extruding zone (IV) and homogenizing zone (III) are connected for dismountable type.
7. cone double machine barrel according to claim 6, it is characterized in that: the structure that described dismountable type connects is: on the end face of described extruding zone (IV), be provided with screw (3), on the end face of described homogenizing zone (III), be also provided with the fixing hole corresponding with screw (3) position, between screw (3) and fixing hole, pass through bolt or screw rod by fixed with each other to extruding zone (IV) and homogenizing zone (III).
CN201110438197.3A 2011-12-08 2011-12-08 Tapered double machine barrel CN102490341B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110438197.3A CN102490341B (en) 2011-12-08 2011-12-08 Tapered double machine barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110438197.3A CN102490341B (en) 2011-12-08 2011-12-08 Tapered double machine barrel

Publications (2)

Publication Number Publication Date
CN102490341A CN102490341A (en) 2012-06-13
CN102490341B true CN102490341B (en) 2014-07-23

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102886890A (en) * 2012-10-19 2013-01-23 无锡市百顺机械厂 Cylinder structure of extruder
CN103950181A (en) * 2014-04-03 2014-07-30 于德胜 Conical dual-machine-barrel unit with embedded high-wear-resistant base material
CN104002455A (en) * 2014-05-21 2014-08-27 太仓荣南密封件科技有限公司 Car sealing strip extrusion fiber wire guide device
CN109093976A (en) * 2018-08-02 2018-12-28 北京工商大学 A kind of double screw extruder can the wear-resisting kneading block of convenient changing screw rod

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1498078A (en) * 1974-06-01 1978-01-18 Werner & Pfleiderer Screw extruder housing
US4462692A (en) * 1982-11-27 1984-07-31 Frenkel C-D Aktiengesellschaft Screw extruders
US5209937A (en) * 1990-12-17 1993-05-11 Kangas Waino J Insert for barrel extruders
GB2304619A (en) * 1995-09-09 1997-03-26 Apv Uk Plc Screw extruders and pressed powder insert components

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1498078A (en) * 1974-06-01 1978-01-18 Werner & Pfleiderer Screw extruder housing
US4462692A (en) * 1982-11-27 1984-07-31 Frenkel C-D Aktiengesellschaft Screw extruders
US5209937A (en) * 1990-12-17 1993-05-11 Kangas Waino J Insert for barrel extruders
GB2304619A (en) * 1995-09-09 1997-03-26 Apv Uk Plc Screw extruders and pressed powder insert components

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