CN102814963A - Foaming pipe extrusion die capable of adjusting flow rate of feeding material - Google Patents

Foaming pipe extrusion die capable of adjusting flow rate of feeding material Download PDF

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Publication number
CN102814963A
CN102814963A CN2012102673276A CN201210267327A CN102814963A CN 102814963 A CN102814963 A CN 102814963A CN 2012102673276 A CN2012102673276 A CN 2012102673276A CN 201210267327 A CN201210267327 A CN 201210267327A CN 102814963 A CN102814963 A CN 102814963A
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China
Prior art keywords
core
adjuster
extrusion die
die
foaming pipe
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CN2012102673276A
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Chinese (zh)
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CN102814963B (en
Inventor
苗海豹
罗中山
叶志勇
张祥军
张波
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KUNSHAN JURRY MACHINERY CO Ltd
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KUNSHAN JURRY MACHINERY CO Ltd
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Publication of CN102814963A publication Critical patent/CN102814963A/en
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Abstract

The invention relates to a foaming pipe extrusion die capable of adjusting the flow rate of a feeding material. The foaming pipe extrusion die comprises a tubular extrusion die which is transversely extended and a columnar core die which is arranged inside the extrusion die, wherein a tubular gap between the extrusion die and the core die becomes a slurry channel, a central spindle which is transversely extended is arranged on an axis of the core die, and a columnar supporting bar for connecting the central spindle with the outer wall of the extrusion die is arranged on the axial middle part. The foaming pipe extrusion die is characterized in that the transverse two ends of the foaming pipe extrusion die are an inlet end and an outlet end, an adjuster of which head of in a cone shape and an axial distance relative to the core die can be adjusted, is arranged on the core die at the inlet end, the adjuster is connected with the core die by bolts and the head of the core die is towards outside. According to the foaming pipe extrusion die, the adjuster of which the axial distance can be adjusted is arranged at the inlet end of the extrusion die, the outlet end flow rate of a channel inside a feeding die for matching use is changed, so that the flexible control of an operator is convenient, and the quality stability of the foaming pipe is guaranteed. An elastic sealing spacer can be arranged between the adjuster and the core die inlet end of the die, so that the sealing performance of the slurry channel can be guaranteed and metal connection components are protected.

Description

A kind of foaming pipe extrusion die of scalable feed rate
Technical field
The present invention relates to a kind of mould of making plastic pipe, relate in particular to a kind of extrusion die of making the foaming pipe.
Background technology
The production line of PVC foaming pipe or PE foaming pipe tubing is made up of charging mould, extrusion die and other accessory machinery.Foaming pipe tubing comprises the annular foaming layer that tubular body is middle with being located at body, and accordingly, the tubing slip also comprises the body slip and is wrapped in the foaming slip in the body slip.The charging mould is provided with inside and outside three layers of passage, and wherein internal and external channel is walked the body slip, the center-aisle slip of walking to foam; At the end that crosses is charging mould outlet end, and interior outer body slip will foam in the middle of slip is wrapped in, formation tubing slip; Because the slurry channel of extrusion die is tubular, the tubing slip especially in the internal channel body slip cross-flow takes place easily when the extrusion die entrance point gets into; Therefore common entrance point at extrusion die fixedly installs the adjuster that head is taper; Adjuster inserts charging mould outlet end internal channel, and the change cylindrical passageway is annular channel, makes tubing slip integral body steadily get into slurry channel in the extrusion die by set layering.But because adjuster is immutable with respect to the position of charging mould, charging mould outlet end becomes the internal channel fixed width of annular, and operating personnel are controlled relatively poor to the slip flow.
Summary of the invention
The present invention has overcome the deficiency of prior art, provides a kind of simple in structure, is convenient to control feed rate, the foaming pipe extrusion die that flexibility ratio is high.
For achieving the above object, the technical scheme that the present invention adopts is: a kind of foaming pipe extrusion die of scalable feed rate comprises the tubular mouth mould of horizontal expansion and is located at the column core in mouthful mould; Tubulose gap between mouth mould and the core becomes slurry channel; The axis of said core is provided with the mandrel of horizontal expansion, and axially the middle part is provided with and connects a mandrel and mouthful columnar stays bar of mould outer wall, and it is characterized in that: horizontal two ends are respectively the arrival end and the port of export; Said arrival end place; It is taper and the adjuster adjustable with respect to the axial distance of core that core is provided with head, and said adjuster links to each other with core through screw, and head outwardly.
In preferred embodiment of the present invention, comprise that further said screw is axial along core, fill the elastic packing pad in the end play between adjuster and core.
In preferred embodiment of the present invention, further comprise said screw along core radially, the connecting portion with adjuster on the core is provided with two or more
The screw of diverse location vertically, said screw matches with said screw respectively.
In preferred embodiment of the present invention; The conical nose that further comprises said adjuster is arranged on the cylindrical body, and the ontological idea of freedom end is the adjuster afterbody, and said afterbody is provided with deep hole vertically; The end that said core links to each other with adjuster is a link; Link is provided with the protrusion that profile matches with said deep hole interior shape, is provided with the ring-shaped rubber pad between the end face of the tail end face of adjuster and core link, and said protrusion passes from ring-shaped rubber pad center.
In preferred embodiment of the present invention, comprise that further said screw is positioned at the afterbody deep hole of said adjuster.
In preferred embodiment of the present invention, comprise that further said governor body is cylindrical, said deep hole length vertically is less than screw length and protrusion length sum.
The invention solves the defective that exists in the background technology; Foaming pipe extrusion die of the present invention is provided with the adjustable adjuster of axial location at entrance point; And then change the charging mould internal channel port of export flow that is used, and be convenient to operating personnel and control flexibly, guarantee foaming pipe quality of stability.Can between the core arrival end of adjuster and extrusion die, the elastic packing pad be set, guarantee the slurry channel sealing, the protection metal connection parts.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structural representation of the preferred embodiments of the present invention;
Fig. 2 is the enlarged diagram of part shown in Figure 1;
Among the figure: 1, arrival end, 2, mouthful mould, 3, the port of export, 4, core, 41, link; 5, charging mould outlet end, 6, slurry channel, 7, internal channel, 8, mandrel, 9, horn-like position; 10, support bar, 12, adjuster, 121, head, 122, body, 14, screw; 16, flange, 18, deep hole, 20, protrusion, 22, pad, 24, screw.
The specific embodiment
Combine accompanying drawing and embodiment that the present invention is done further detailed explanation now, these accompanying drawings are the sketch map of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
Embodiment 1: shown in Fig. 1-2, the foaming pipe extrusion die of a kind of scalable feed rate of the present invention comprises the tubular mouth mould 2 of horizontal expansion and is located at the column core 4 in mouthful mould; Tubulose gap between mouth mould 2 and the core 4 becomes slurry channel 6; The axis of said core 4 is provided with the mandrel 8 of horizontal expansion, and axially the middle part is provided with and connects a mandrel 8 and mouthful columnar stays bar 10 of mould 2 outer walls, and the horizontal two ends of extrusion die are respectively the arrival end 1 and the port of export 3; Said arrival end 1 place; It is taper and the adjuster 12 adjustable with respect to the axial distance of core 4 that core 4 is provided with head, and said adjuster 12 links to each other with core 4 through screw 14, and head outwardly.Said entrance point 1 is provided with flange 16, is used for linking to each other with the charging mould.To support bar 10 directions, the slurry channel 6 annulus width of arbitrary section vertically equates that the internal radius of arbitrary section increases gradually along said entrance point 1.To the said port of export 3 directions, slurry channel 6 is divided into two sections along support bar 10, is bordering on a section of support bar 10, and the annulus width of arbitrary section reduces gradually, and the internal radius of arbitrary section also reduces gradually; Be bordering on a section of the said port of export 3, the annulus width of arbitrary section equates that the internal radius of arbitrary section equates.The conical nose 121 of said adjuster 12 is arranged on the cylindrical body 122; Body 122 free ends are adjuster 12 afterbodys; Said afterbody is provided with deep hole 18 vertically, and the end that said core 4 links to each other with adjuster 12 is a link 41, and link 41 is provided with the protrusion 20 that profile matches with said deep hole 18 interior shapes; Be provided with ring-shaped rubber pad 22 between the end face of the tail end face of adjuster 12 and core link 41, said protrusion 20 passes from ring-shaped rubber pad 22 centers.Afterbody deep hole 18, one ends that said screw 14 is positioned at adjuster 12 are fixed in deep hole 18 bottoms, and protrusion 20 tops link to each other on the other end and the core 4, and adjuster 12 and core 4 coaxial settings.Said deep hole 18 length vertically is less than screw 14 length and protrusion 20 length sums.
Embodiment 2 (not shown): be with the difference part of embodiment 1: said screw 14 along core 4 radially, the protrusion 20 of core 4 is provided with the screw 24 that 3-4 is in diverse location vertically, said each screw 24 matches with said screw 14 respectively.During use, cooperate different screws 24, change the axial distance of adjuster 12 with respect to charging mould outlet end 3 through screw 14 grafting.
When making the foaming pipe; The arrival end 1 of extrusion die and charging mould outlet end 5 link to each other through flange; Adjuster 12 heads 121 insert in the charging mould internal channel 7; Because it is horn-like that common internal channel 7 two ends are, so adjuster head 121 specifically is to insert the horn-like position 9 that internal channel is bordering on charging mould outlet end 5.Change adjuster head 121 distances through screw 14 with respect to the horn-like position 9 of being inserted; Be that the channel sized that forms between the inner conical surface at male cone (strobilus masculinus) and said horn-like position 9 of adjuster head 121 is also adjusted, help controlling the flow of body slip in the internal channel 7.
Above foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must confirm technical scope according to the claim scope.

Claims (6)

1. the foaming pipe extrusion die of a scalable feed rate; Comprise the tubular mouth mould and the column core of being located in mouthful mould of horizontal expansion, the tubulose gap between mouthful mould and the core becomes slurry channel, and the axis of said core is provided with the mandrel of horizontal expansion; Axially the middle part is provided with and connects a mandrel and mouthful columnar stays bar of mould outer wall; It is characterized in that: horizontal two ends are respectively the arrival end and the port of export, said arrival end place, and it is taper and the adjuster adjustable with respect to the axial distance of core that core is provided with head; Said adjuster links to each other with core through screw, and head outwardly.
2. the foaming pipe extrusion die of a kind of scalable feed rate according to claim 1, it is characterized in that: said screw is axial along core, fills the elastic packing pad in the end play between adjuster and core.
3. the foaming pipe extrusion die of a kind of scalable feed rate according to claim 2 is characterized in that: said screw along core radially, the connecting portion with adjuster on the core is provided with two or more
The screw of diverse location vertically, said screw matches with said screw respectively.
4. according to the foaming pipe extrusion die of claim 2 or 3 described a kind of scalable feed rates; It is characterized in that: the conical nose of said adjuster is arranged on the cylindrical body; The ontological idea of freedom end is the adjuster afterbody; Said afterbody is provided with deep hole vertically, and the end that said core links to each other with adjuster is a link, and link is provided with the protrusion that profile matches with said deep hole interior shape; Be provided with the ring-shaped rubber pad between the end face of the tail end face of adjuster and core link, said protrusion passes from ring-shaped rubber pad center.
5. the foaming pipe extrusion die of a kind of scalable feed rate according to claim 4 is characterized in that: said screw is positioned at the afterbody deep hole of said adjuster.
6. the foaming pipe extrusion die of a kind of scalable feed rate according to claim 5 is characterized in that: said governor body is cylindrical, and said deep hole length vertically is less than screw length and protrusion length sum.
CN201210267327.6A 2012-07-31 2012-07-31 A kind of foaming tube extrusion die of adjustable feed rate Active CN102814963B (en)

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CN102814963B CN102814963B (en) 2015-08-05

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104260319A (en) * 2014-09-21 2015-01-07 成都众山科技有限公司 Shaping mechanism beneficial to pipe shaping quality
CN104260271A (en) * 2014-09-21 2015-01-07 成都众山科技有限公司 Cable protection pipe molding equipment
CN107351359A (en) * 2017-07-17 2017-11-17 苏州金纬管道科技有限公司 Guide's distributor for plastic extruder
CN109571954A (en) * 2019-01-29 2019-04-05 牟振如 A kind of adjustable slit formula extruder head

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565740A (en) * 1979-06-28 1981-01-21 Fuji Kogyo Kk Mouthpiece for molding resin tube body
CN2303720Y (en) * 1997-08-25 1999-01-13 浙江佑利工程塑料管道总厂 Extrusion mould-head for producing plasti pipe with sound-insulated holes in it
US20040115293A1 (en) * 2002-12-11 2004-06-17 Prue James M. Manifold for regulating the flow of plastic to an extrusion die
CN2642496Y (en) * 2003-07-31 2004-09-22 孙明礼 Pipe die with a rotatable core
CN201253947Y (en) * 2008-06-18 2009-06-10 宁波方力集团有限公司 Fused mass flow regulation apparatus for extruding mould
CN201792476U (en) * 2010-03-20 2011-04-13 永高股份有限公司 Extrusion die for hollow muffling spiral pipe
CN202336987U (en) * 2011-11-02 2012-07-18 深圳市沃尔核材股份有限公司 Extrusion machine head
CN202685285U (en) * 2012-07-31 2013-01-23 昆山圣源机械有限公司 Feeding-flow-adjustable extrusion mold of foaming pipe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565740A (en) * 1979-06-28 1981-01-21 Fuji Kogyo Kk Mouthpiece for molding resin tube body
CN2303720Y (en) * 1997-08-25 1999-01-13 浙江佑利工程塑料管道总厂 Extrusion mould-head for producing plasti pipe with sound-insulated holes in it
US20040115293A1 (en) * 2002-12-11 2004-06-17 Prue James M. Manifold for regulating the flow of plastic to an extrusion die
CN2642496Y (en) * 2003-07-31 2004-09-22 孙明礼 Pipe die with a rotatable core
CN201253947Y (en) * 2008-06-18 2009-06-10 宁波方力集团有限公司 Fused mass flow regulation apparatus for extruding mould
CN201792476U (en) * 2010-03-20 2011-04-13 永高股份有限公司 Extrusion die for hollow muffling spiral pipe
CN202336987U (en) * 2011-11-02 2012-07-18 深圳市沃尔核材股份有限公司 Extrusion machine head
CN202685285U (en) * 2012-07-31 2013-01-23 昆山圣源机械有限公司 Feeding-flow-adjustable extrusion mold of foaming pipe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104260319A (en) * 2014-09-21 2015-01-07 成都众山科技有限公司 Shaping mechanism beneficial to pipe shaping quality
CN104260271A (en) * 2014-09-21 2015-01-07 成都众山科技有限公司 Cable protection pipe molding equipment
CN107351359A (en) * 2017-07-17 2017-11-17 苏州金纬管道科技有限公司 Guide's distributor for plastic extruder
CN109571954A (en) * 2019-01-29 2019-04-05 牟振如 A kind of adjustable slit formula extruder head
CN109571954B (en) * 2019-01-29 2024-03-05 牟振如 Adjustable slit type extrusion head

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