CN2732463Y - Double layer co-squeezing screw dies - Google Patents

Double layer co-squeezing screw dies Download PDF

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Publication number
CN2732463Y
CN2732463Y CNU2004200907580U CN200420090758U CN2732463Y CN 2732463 Y CN2732463 Y CN 2732463Y CN U2004200907580 U CNU2004200907580 U CN U2004200907580U CN 200420090758 U CN200420090758 U CN 200420090758U CN 2732463 Y CN2732463 Y CN 2732463Y
Authority
CN
China
Prior art keywords
external spiral
screw body
screw
spiral body
gap
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
CNU2004200907580U
Other languages
Chinese (zh)
Inventor
何海潮
王宝泰
王淳德
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.)
Shanghai Jiewei Machinary Manufacturing Co., Ltd
Shanghai Jwell Chemical Fiber Machinery Co., Ltd.
Shanghai Jwell Machinery Co., Ltd.
Original Assignee
SHANGHAI JWELL MACHINERY CO Ltd
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 SHANGHAI JWELL MACHINERY CO Ltd filed Critical SHANGHAI JWELL MACHINERY CO Ltd
Priority to CNU2004200907580U priority Critical patent/CN2732463Y/en
Application granted granted Critical
Publication of CN2732463Y publication Critical patent/CN2732463Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The utility model relates to a together squeezing screw die with double layers. The back casing of the die is sheathed with an outer screw body inside, and a gap is arranged between the casing and the outer screw body. The outer surface of the outer screw body is provided with a screw trough, and an outer circular interval channel is formed by the gap between the casing and the outer screw body, and the spiral trough on the outer surface of the outer screw body. The outer screw body is sheathed with an inner screw body, and a gap is arranged between the outer screw body and the inner screw body. The outer surface of the inner screw body is provided with a screw trough, and an inner circular interval channel is formed by the gap between the outer screw and the inner screw and the spiral trough on the outer surface of the inner screw. The inner and the outer circular interval channels are confluent at the anterior part of the outer screw body and are connected with a circular discharging interval channel. The junction is sheathed with a regulating ring which is provided with a regulating screw outside. The back surface of the die is provided with a main feed inlet, and the side of the back end is provided with a side feed inlet. The utility model has the advantages of small machinery matched thermal stress and pressure attrition in the process of producing, and the inner and the outer surfaces of the product are of no flowing mark and dense.

Description

The double-layer coextrusion spiral mould
Technical field
The utility model relates to a kind of mould of producing the tubing product, particularly a kind of double-layer coextrusion spiral mould.
Background technology
The mould of at present traditional production tubing product is because in process of production, molten material mechanics uniformity and thermal uniformity during discharging are not ideal, leave current mark on the surfaces externally and internally of the tubing product of being produced, and can't produce the solid wall pipe product of good bond layer according to various needs.
Summary of the invention
The purpose of this utility model provides a kind of double-layer coextrusion spiral mould, the mould that has solved traditional production tubing product is because in process of production, molten material mechanics uniformity and thermal uniformity during discharging are not ideal, leave current mark on the surfaces externally and internally of the tubing product of being produced, and can't produce the problem of the solid wall pipe product of good bond layer according to various needs.The utility model designs a kind of double-layer coextrusion spiral mould, comprise housing, charging aperture, annular channel, it is characterized in that: be with the external spiral body in the latter half of housing of mould, gapped between housing and external spiral body, the outer surface of external spiral body is provided with helicla flute, housing with between the external spiral body the gap and the helicla flute on the external spiral external surface constituted the outer ring runner, be with the inside spin body in the external spiral body, gapped between external spiral body and inside spin body, the outer surface of inside spin body is provided with helicla flute, the external spiral body with between the inside spin body the gap and the helicla flute on the inside spin external surface constituted interior annular channel, in, the outer ring runner meets at external spiral body front end, and be connected with an annular discharging runner, the junction is with an adjustable ring, adjustable ring is provided with adjustment screw outward, the rear end face of mould is provided with main charging aperture, main charging aperture is connected with interior annular channel by pipeline, the rear end of mould side is provided with the side charging aperture, the side charging aperture is connected with the outer ring runner by pipeline, wherein, between housing and external spiral body and external spiral body and inside spin body between the gap reduce gradually along direction from front to back, in, helicla flute edge on external spiral external surface direction from front to back deepens gradually.It is little to the utility model has the advantages that in the production process that the machinery of solution closes thermal stress, and pressure loss is little, and the surfaces externally and internally of the product of being produced does not have current mark and closely knit.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing 1 is a structural representation of the present utility model,
Accompanying drawing 2 is the local enlarged diagram of A among Fig. 1,
The specific embodiment
Comprise housing 1 among the figure, charging aperture 2, annular channel 4, it is characterized in that: be with external spiral body 5 in the latter half of housing 1 of mould, 5 of housing 1 and external spiral bodies are gapped, the outer surface of external spiral body 5 is provided with helicla flute 6, housing 1 has constituted the outer ring runner with the gap of 5 of external spiral bodies and the helicla flute 6 on external spiral body 5 outer surfaces, be with inside spin body 7 in the external spiral body 5,7 of external spiral body 5 and inside spin bodies are gapped, the outer surface of inside spin body 7 is provided with helicla flute 8, external spiral body 5 has constituted interior annular channel with the gap of 7 of inside spin bodies and the helicla flute 8 on inside spin body 7 outer surfaces, in, the outer ring runner meets at external spiral body 5 front ends, and be connected with an annular discharging runner 4, the junction is with an adjustable ring 9, the adjustable ring 9 outer adjustment screw 10 that are provided with, the rear end face of mould is provided with main charging aperture 2, main charging aperture 2 is connected with interior annular channel by pipeline, the rear end of mould side is provided with side charging aperture 3, side charging aperture 3 is connected with the outer ring runner by pipeline, wherein, gap 5 and 7 of external spiral body 5 and inside spin bodies reduces gradually along direction from front to back between housing 1 and external spiral body, in, helicla flute 8 on the external spiral external surface, 6 edges direction from front to back deepen gradually.When molten material from charging aperture 2,3 enter in, the outer ring runner, every bundle materials flow be divided in the annular gap axial materials flow and at helicla flute 8, continuous spiral materials flow forward in 6, along with the advance shaft of materials flow constantly increases to materials flow, the spiral materials flow then constantly reduces, in final, outer two crural rings stream merges the compression of passing through adjustable ring 9 and adjustment screw 10 again, make molten stream obtain mixing fully effectively further, molten material reaches the mechanics uniformity and the thermal uniformity of expection on the circumferencial direction of the annulus of adjustable ring 9, the surfaces externally and internally of the feasible product of being produced does not have current mark and closely knit.

Claims (2)

1, the double-layer coextrusion spiral mould, comprise housing, charging aperture, annular channel, it is characterized in that: be with the external spiral body in the latter half of housing of mould, gapped between housing and external spiral body, the outer surface of external spiral body is provided with helicla flute, housing with between the external spiral body the gap and the helicla flute on the external spiral external surface constituted the outer ring runner, be with the inside spin body in the external spiral body, gapped between external spiral body and inside spin body, the outer surface of inside spin body is provided with helicla flute, the external spiral body with between the inside spin body the gap and the helicla flute on the inside spin external surface constituted interior annular channel, in, the outer ring runner meets at external spiral body front end, and be connected with an annular discharging runner, the junction is with an adjustable ring, and adjustable ring is provided with adjustment screw outward, the rear end face of mould is provided with main charging aperture, main charging aperture is connected with interior annular channel by pipeline, and the rear end of mould side is provided with the side charging aperture, and the side charging aperture is connected with the outer ring runner by pipeline.
2, double-layer coextrusion spiral mould according to claim 1, it is characterized in that: between housing and external spiral body and external spiral body and inside spin body between the gap reduce gradually along direction from front to back, the helicla flute on the inside and outside conveyor screw outer surface deepens gradually along direction from front to back.
CNU2004200907580U 2004-10-08 2004-10-08 Double layer co-squeezing screw dies Expired - Lifetime CN2732463Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2004200907580U CN2732463Y (en) 2004-10-08 2004-10-08 Double layer co-squeezing screw dies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2004200907580U CN2732463Y (en) 2004-10-08 2004-10-08 Double layer co-squeezing screw dies

Publications (1)

Publication Number Publication Date
CN2732463Y true CN2732463Y (en) 2005-10-12

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ID=35068310

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2004200907580U Expired - Lifetime CN2732463Y (en) 2004-10-08 2004-10-08 Double layer co-squeezing screw dies

Country Status (1)

Country Link
CN (1) CN2732463Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106426866A (en) * 2016-10-14 2017-02-22 福州大学 Center feeding double-layer spiral large-width ultrathin film blowing machine head and work method thereof
CN110103441A (en) * 2018-01-11 2019-08-09 上海金湖挤出设备有限公司 The saturating static conductive petroleum pipeline extrusion die of two-layer barrier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106426866A (en) * 2016-10-14 2017-02-22 福州大学 Center feeding double-layer spiral large-width ultrathin film blowing machine head and work method thereof
CN110103441A (en) * 2018-01-11 2019-08-09 上海金湖挤出设备有限公司 The saturating static conductive petroleum pipeline extrusion die of two-layer barrier

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20090508

Address after: Cao An Road, Shanghai, 4315, zip code: 201804

Co-patentee after: Shanghai Jiewei Machinary Manufacturing Co., Ltd

Patentee after: Shanghai Jinwei Machinery Manufacturing Co., Ltd.

Address before: Shanghai Jiading District Huangdu Town Green Road No. 5, zip code: 201804

Patentee before: Shanghai Jwell Machinery Co., Ltd.

ASS Succession or assignment of patent right

Owner name: SHANGHAI JIEWEI MACHINERY MANUFACTURING CO., LTD.

Free format text: FORMER OWNER: SHANGHAI JIEWEI MACHINERY MANUFACTURING CO., LTD.

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20100413

Address after: 201804, 4315 Cao An Road, Shanghai

Patentee after: Shanghai Jwell Machinery Co., Ltd.

Patentee after: Shanghai Jiewei Machinary Manufacturing Co., Ltd

Patentee after: Shanghai Jwell Chemical Fiber Machinery Co., Ltd.

Address before: 201804, 4315 Cao An Road, Shanghai

Patentee before: Shanghai Jwell Machinery Co., Ltd.

Patentee before: Shanghai Jiewei Machinary Manufacturing Co., Ltd

PP01 Preservation of patent right

Effective date of registration: 20100926

Granted publication date: 20051012

PP01 Preservation of patent right

Effective date of registration: 20110326

Granted publication date: 20051012

PD01 Discharge of preservation of patent

Date of cancellation: 20110926

Granted publication date: 20051012

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20141008

Granted publication date: 20051012