CN102490341A

CN102490341A - Tapered double machine barrel

Info

Publication number: CN102490341A
Application number: CN2011104381973A
Authority: CN
Inventors: 后桂根; 夏增富
Original assignee: ZHEJIANG HUAYE PLASTICS MACHINERY CO Ltd
Current assignee: Zhejiang Huaye Plastic Machinery Co.,Ltd.
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2012-06-13
Anticipated expiration: 2031-12-08
Also published as: CN102490341B

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 awl two-shipper tube

Technical field

The present invention relates to a kind of manufacture technology field of machine barrel, especially refer to a kind of awl two-shipper tube.

Background technology

Existing a kind of patent No. is 200820084388.8 and is called that the Chinese utility model patent of " extruder with tungsten carbide awl twin-screw and machine barrel " discloses a kind of awl twin-screw and supporting machine barrel thereof; Its structure includes two barrel head of awl and awl twin-screw; The inner chamber spun casting of the two barrel head of this awl has the diamondite layer, and the surface of awl twin-screw also is coated with the diamondite layer.This utility model adopts spun casting diamondite technology, new and high technologies such as supersonic speed hot-spraying technique, and machine barrel and screw rod have high abrasion, being able to bear strong corrosion property.But coming off and wear phenomenon appears in this alloy-layer easily, and in addition, this awl two-shipper tube is whole piece processing; And wearing and tearing are to appear at leading portion generally speaking, if wearing and tearing then need integral replacing; Both lost time, and increased cost again, so its structure awaits to improve.

Summary of the invention

Technical problem to be solved by this invention is to provide to above-mentioned prior art present situation that a kind of anti-wear performance is good, the awl two-shipper tube of long service life.

The present invention solves the problems of the technologies described above the technical scheme that is adopted and is this kind awl two-shipper tube; Include feeding section, melt zone, homogenizing zone, extruding zone; It is characterized in that: on the endoporus inwall of said extruding zone, axially be inlaid with the wear rib of bar shaped, the surperficial arc surface of said wear rib is positioned on the same periphery with the corresponding endoporus inner wall surface of extruding zone.

As improvement, said wear rib is 2, on two machine barrel endoporus inwalls of extruding zone, respectively distributes one, the sixth that the arc length of the radial section of every wear rib is grown greater than corresponding endoporus inwall whole circumference, and less than 1/3rd of whole circumference length.

Improve, the radial section of said wear rib is arch-shaped again, and the right ends of circular arc connects swallow-tailed hypotenuse respectively, and the angle between this two hypotenuse is 90 °, and the groove of said wear rib on extruding zone endoporus inwall fits in.

Improve, the thickness of the right ends of said wear rib is different again, and the end that thickness is little is positioned at the port position of extruding zone.

Improve, the deflection angle that forms between the vertical vertical line in the arcuate midway point of the radial section of said wear rib and the line in the center of circle and this center of circle of mistake is 10 ° again, and the wear rib of said the right and left is respectively with outside inflection point setting.

Improve, the axial length of said wear rib equals the axial length of extruding zone again.

Improve, said wear rib is ceramic panel again.

Improve, said ceramic panel is the zirconia ceramics bar again.

Improve, said extruding zone is that dismountable type is connected with homogenizing zone again.

Improve again; The structure that said dismountable type connects is: the end face of said extruding zone is provided with screw; Also be provided with on the end face of said homogenizing zone and the corresponding fixing hole of screwhole position, extruding zone and homogenizing zone is fixed with each other between screw and the fixing hole through bolt or screw rod.

Compared with prior art, the invention has the advantages that: the extruding zone inwall of this machine barrel is inlayed wear rib, has avoided the alloyed powder that extruding zone brushing alloyed powder causes in the prior art to be prone to come off and problem easy to wear, and 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, when wearing and tearing appear in machine barrel, only with dismantling the extruding zone of machine barrel down; The extruding zone that is inlaid with ceramic block new in the replacing gets final product, and both saves time, and has reduced the production cost of equipment simultaneously again.

Description of drawings

Fig. 1 is the partial sectional view of the embodiment of the invention;

Fig. 2 is the structural representation of the extruding zone among Fig. 1;

Fig. 3 is that B among Fig. 2 is to perspective view;

Fig. 4 is that A among Fig. 2 is to perspective view;

Fig. 5 is the side projection figure of the wear rib among Fig. 1;

Fig. 6 is that M among Fig. 5 is to perspective view;

Fig. 7 is that N among Fig. 5 is to perspective view.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Extremely shown in Figure 7 like Fig. 1; The awl two-shipper tube of present embodiment; Include feeding section I, melt zone II, homogenizing zone III, extruding zone IV; On endoporus 2 inwalls 21 of extruding zone IV, axially be inlaid with the wear rib 1 of 2 bar shapeds, the surperficial arc surface 1a of wear rib 1 is positioned on the same periphery with corresponding endoporus 2 inwalls 21 surfaces of extruding zone IV.Two wear ribs 1 respectively distribute one on two machine barrel endoporus inwalls of extruding zone IV, the sixth that the arc length of the radial section of every wear rib 1 is grown greater than corresponding endoporus 2 inwalls 21 whole circumference, and less than 1/3rd of whole circumference length.The radial section of wear rib 1 is arch-shaped, and the right ends of circular arc connects swallow-tailed hypotenuse 1b respectively, and the angle between this two hypotenuse 1b is 90 °, and the groove of wear rib 1 on extruding zone IV endoporus 2 inwalls 21 fits in.The thickness of the right ends of wear rib 1 is different, and the end of little thickness s is positioned at the end position of extruding zone IV, and an end of big thickness d is positioned on the extruding zone end with the homogenizing zone connection.The deflection angle β that forms 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 this center of circle of mistake 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 the 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: the end face of extruding zone IV is provided with screw 3; Also be provided with on the end face of homogenizing zone III and the corresponding fixing hole in screw 3 positions, extruding zone IV and homogenizing zone III is fixed with each other between screw 3 and the fixing hole through bolt or screw rod.

This awl two-shipper tube also possesses following characteristics:

1, the thickness of ceramic block has adopted the concentric reducer design, only needs during installation the small end of ceramic block is got final product along the insertion of A direction, can take out in the other direction.

2, the groove of machine barrel extruding zone has 90 ° of dovetails, can make the ceramic block fitting tight, not come off.Because of according to awl twin-screw incorgruous outside operating characteristic, the position the most easy to wear of machine barrel is position, 10 ° of left and right sides partially outward up, and edge ceramic block position of the present invention and width have comprised damageable zone.

3, but damageable zone is changed in the field maintenance of this awl two-shipper tube, and only need unclamp the bolt of the junction of homogenizing zone and extruding zone, can extruding zone be separated from whole machine barrel, pound out the ceramic block that has worn and torn along the B direction again, promptly replaceable new ceramic block.This awl two-shipper tube is applicable to the two products of extruding of various awls, and effect is best when being used for the PE wood-plastic products and extruding.

Claims

1. awl two-shipper tube; Include feeding section (I), melt zone (II), homogenizing zone (III), extruding zone (IV); It is characterized in that: on endoporus (2) inwall (21) of said extruding zone (IV), axially be inlaid with the wear rib (1) of bar shaped, the surperficial arc surface (1a) of said wear rib (1) is positioned on the same periphery with corresponding endoporus (2) inwall (21) surface of extruding zone (IV).

2. awl two-shipper tube according to claim 1; It is characterized in that: said wear rib (1) is 2; On two machine barrel endoporus (2) inwalls (21) of extruding zone (IV), respectively distribute one; The sixth that the arc length of the radial section of every wear rib (1) is grown greater than corresponding endoporus (2) inwall (21) whole circumference, and less than 1/3rd of whole circumference length.

3. awl two-shipper tube according to claim 2; It is characterized in that: the radial section of said wear rib (1) is arch-shaped; The right ends of circular arc connects swallow-tailed hypotenuse (1b) respectively; Angle (α) between this two hypotenuse (1b) is 90 °, and the groove of said wear rib (1) on extruding zone (IV) endoporus (2) inwall (21) fits in.

4. awl two-shipper tube according to claim 3 is characterized in that: the thickness of the right ends of said wear rib (1) is different, and the end that thickness is little is positioned at the end position of extruding zone (IV).

5. awl two-shipper tube according to claim 3; It is characterized in that: the deflection angle (β) that forms between the vertical vertical line (12) in the line (11) in the arcuate midway point of the radial section of said wear rib (1) and the center of circle and this center of circle of mistake is 10 °, and the wear rib of said the right and left (1) is respectively with outside inflection point setting.

6. awl two-shipper tube according to claim 3 is characterized in that: the axial length of said wear rib (1) equals the axial length of extruding zone (IV).

7. according to the described awl two-shipper of arbitrary claim tube in the claim 1 to 6, it is characterized in that: said wear rib (1) is ceramic panel.

8. awl two-shipper tube according to claim 7 is characterized in that: said ceramic panel is the zirconia ceramics bar.

9. awl two-shipper tube according to claim 1 is characterized in that: said extruding zone (IV) is connected for dismountable type with homogenizing zone (III).

10. awl two-shipper tube according to claim 9; It is characterized in that: the structure that said dismountable type connects is: the end face of said extruding zone (IV) is provided with screw (3); Also be provided with on the end face of said homogenizing zone (III) and the corresponding fixing hole in screw (3) position, extruding zone (IV) and homogenizing zone (III) is fixed with each other between screw (3) and the fixing hole through bolt or screw rod.