CN105383032A - PVC pipeline extruding die for improving flatness of inner wall of product - Google Patents

PVC pipeline extruding die for improving flatness of inner wall of product Download PDF

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Publication number
CN105383032A
CN105383032A CN201510705467.0A CN201510705467A CN105383032A CN 105383032 A CN105383032 A CN 105383032A CN 201510705467 A CN201510705467 A CN 201510705467A CN 105383032 A CN105383032 A CN 105383032A
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CN
China
Prior art keywords
die
support
mouth
pvc pipeline
improving
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.)
Granted
Application number
CN201510705467.0A
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Chinese (zh)
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CN105383032B (en
Inventor
陈增贵
钱鑫波
陆亦飞
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.)
Zhejiang Zhongcai Pipes Science and Technology Co Ltd
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Zhejiang Zhongcai Pipes Science and Technology Co Ltd
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Priority to CN201510705467.0A priority Critical patent/CN105383032B/en
Publication of CN105383032A publication Critical patent/CN105383032A/en
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Publication of CN105383032B publication Critical patent/CN105383032B/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
    • B29C48/30Extrusion nozzles or dies
    • 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
    • B29C48/30Extrusion nozzles or dies
    • B29C48/32Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06PVC, i.e. polyvinylchloride

Abstract

The invention discloses a PVC pipeline extruding die for improving the flatness of the inner wall of a product. The PVC pipeline extruding die comprises a front die body, a bush die pressing plate, bush die, a support, a core rod, a dividing cone, a rear die body, a first dividing die body, a second dividing die body and a converging core. The bush die pressing plate is mounted in an inner cavity of the front die body. A sphere with the middle annularly cut is arranged on the right portion of the bush die. The left end of the bush die penetrates the bush die pressing plate and the front die body. The support is connected with the right end face of the front die body. The right side of the sphere is attached to the arc-shaped face on the left side of the support. The core rod is mounted in a cavity of the core rod and fixed through matching connection of the dividing cone and the rear die body. The left end face of the rear die body and the right end face of the support are connected. The right side of the rear die body is connected with the first dividing die body. The first dividing die body and the second dividing die body are connected, and are sealed and fixed through the converging core. The PVC pipeline extruding die is reasonable in structure, the flowing stability of materials in the die is improved, and the quality of a PVC pipe is improved.

Description

A kind of PVC pipeline extrusion die improving product inwall flatness
[technical field]
The present invention relates to the technical field of PVC pipeline extrusion die, particularly a kind of PVC pipeline extrusion die improving product inwall flatness.
[background technology]
In the last few years, along with expanding economy, people to building function and health conditions requiring more and more higher, especially the choose reasonable of pipeline is for guaranteeing that building using function plays vital effect.On water supply and sewerage pipeline for building, the normal plastic tube used is polyvinyl chloride pipe, also known as pvc pipe, it has case hardness and tensile strength is excellent, pipe safety coefficient is high, the advantages such as ageing resistace is good, long service life, and heat resistance, corrosion resistance are strong, pollution-free, be the world today is liked deeply, the rather popular and a kind of synthetic material be also widely used, applied in industry-by-industry more and more widely.
PVC pipeline product impact property is the essential condition of a measurement product quality, when same formula and flow passage structure, the PVC spool product inwall flatness that (in the maximized situation of production capacity) goes out four spool boards productions can have relation with the back-pressure of mould, current (one goes out four) PVC spool product is when high-speed production, there is rough situation in product inwall, shock resistance is caused to decline, and dirt stagnates after long-time use, the drainage performance of drainpipe is caused greatly to reduce, make troubles to user, therefore be necessary to propose a kind of PVC pipeline extrusion die improving product inwall flatness.
[summary of the invention]
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of PVC pipeline extrusion die improving product inwall flatness is provided, it is intended to solve in prior art, and PVC pipeline inwall flatness is not high, shock resistance is lower, the technical problem that in extrusion die, the mobility of material is poor.
For achieving the above object, the present invention proposes a kind of PVC pipeline extrusion die improving product inwall flatness, comprise front die body, mouth moulded board, mouth mould, support, plug, spreader, rear die body, first shunting die body, second shunting die body and merging core, installing port moulded board in the internal cavities of described front die body, described mouth moulded board is ring type structure, a through hole is offered in centre, the right-hand member of described through hole is provided with a spherical cambered surface, the right part of described mouth mould is the spheroid of middle ring cutting, the left end of described mouth mould is through mouth moulded board and front die body, and the spherical cambered surface of the left side of spheroid and mouth moulded board is fitted, described support is connected with the right side of front die body, arcwall face on the left of the right side of described spheroid and support is fitted, the right-hand member screwed hole of described plug is connected with the left end threaded post of spreader, described plug is arranged in the die cavity of mouthful mould, and be fixed by spreader and being connected of rear die body, the described left side of rear die body is connected with the right side of support, the right side and first of described rear die body is shunted die body and is connected, described first shunting die body and second is shunted die body and is connected, and it is fixing by merging core sealing, described first shunting die body inside offers first flow, described second shunting die body inside offers the second runner.
As preferably, the die cavity inwall of described mouth mould bonds a damping structure layer.
As preferably, the mid portion of described rear die body offers conical bore, and the tapering of described conical bore is identical with the tapering of spreader, is 70 ~ 75 °.
As preferably, described spherical cambered surface, arcwall face are identical with the diameter of spheroid.
As preferably, from right to left, chamber is thick to be reduced the cavity that described mouth mould and plug are formed gradually, and the cavity thickness of left half is consistent.
As preferably, described mouth moulded board, mouth mould, plug and spreader are installed in the space formed by front die body, support and rear die body.
As preferably, described rear die body and first is shunted die body and is bolted, and described support and rear die body are bolted, and described front die body and support are bolted.
As preferably, described first flow is not isometrical distribution, and all little runner exit diameter with the second runner of the diameter of first flow.
Beneficial effect of the present invention: compared with prior art, a kind of PVC pipeline extrusion die improving product inwall flatness provided by the invention, rational in infrastructure, by setting up a damping structure layer in the die cavity of mouth mould, improve per os mould, the flowing stationarity of the material after plug damping slot compression, thus improve the inwall flatness of the pipeline produced, solve pipeline production in enormous quantities in prior art and inwall flatness is not high, and reduce the problem of the shock resistance of pipeline, substantially increase the flatness of inwall, and while ensure that pipeline high yield, improve the quality of pvc pipe.
Feature of the present invention and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is a kind of installation diagram improving the PVC pipeline extrusion die of product inwall flatness of the present invention;
Fig. 2 is the mouth moulded board structural representation of the embodiment of the present invention;
Fig. 3 is the die geometry schematic diagram of the embodiment of the present invention;
Fig. 4 is the supporting structure schematic diagram of the embodiment of the present invention;
Fig. 5 is the mandrel structure schematic diagram of the embodiment of the present invention;
Fig. 6 is the spreader structural representation of the embodiment of the present invention;
Fig. 7 is the rear mold body structure schematic diagram of the embodiment of the present invention.
In figure: die body after die body, 2-mouth moulded board, 21-spherical cambered surface, 22-through hole, 3-mouth mould, 31-spheroid, 32-damping structure layer, 33-die cavity, 4-support, 41-arcwall face, 5-plug, 51-screwed hole, 6-spreader, 61-threaded post, 7-before 1-, 71-conical bore, 8-first shunt die body, 81-first flow, 9-second shunt die body, 91-second runner, 10-merging core.
[detailed description of the invention]
For making the object, technical solutions and advantages of the present invention clearly understand, below by accompanying drawing and embodiment, the present invention is further elaborated.But should be appreciated that, specific embodiment described herein, only in order to explain the present invention, is not limited to scope of the present invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
Consult Fig. 1 to Fig. 7, the embodiment of the present invention provides a kind of PVC pipeline extrusion die improving product inwall flatness, comprise front die body 1, mouth moulded board 2, mouth mould 3, support 4, plug 5, spreader 6, rear die body 7, first shunting die body 8, second shunting die body 9 and merging core 10, installing port moulded board 2 in the internal cavities of described front die body 1, described mouth moulded board 2 is ring type structure, a through hole 22 is offered in centre, the right-hand member of described through hole 22 is provided with a spherical cambered surface 21, the right part of described mouth mould 3 is the spheroid 31 of middle ring cutting, the left end of described mouth mould 3 is through mouth moulded board 2 and front die body 1, and the spherical cambered surface 21 of the left side of spheroid 31 and mouth moulded board 2 is fitted, described support 4 is connected with the right side of front die body 1, arcwall face 41 on the left of the right side of described spheroid 31 and support 4 is fitted, the right-hand member screwed hole 51 of described plug 5 is connected with the left end threaded post 61 of spreader 6, described plug 5 is arranged in the die cavity 33 of mouthful mould 3, and be fixed by spreader 6 and rear being connected of die body 7, the left side of described rear die body 7 is connected with the right side of support 4, the right side and first of described rear die body 7 is shunted die body 8 and is connected, described first shunting die body 8 and second is shunted die body 9 and is connected, and sealed fixing by merging core 10, described first shunting die body 8 inside offers first flow 81, described second shunting die body 9 inside offers the second runner 91.
Wherein, rear die body 7 and first is shunted die body 8 and is bolted, and described support 4 is bolted with rear die body 7, and described front die body 1 is bolted with support 4.
Further, die cavity 33 inwall of mouth mould 3 bonds a damping structure layer 32, damping structure layer 32 and mouth mould 3 are structure as a whole, smooth surface, consume the vibratory output in pipe production process, add the flowing stationarity of material, improve the inwall flatness of pipeline.
Further, the mid portion of rear die body 7 offers conical bore 71, the tapering of described conical bore 71 is identical with the tapering of spreader 6, it is 70 ~ 75 °, the cavity that material is formed with the spreader 6 with tapering by conical bore 71, play the effect of shunting, the conical surface can increase the flow area of material simultaneously, improves stationarity during Flow of Goods and Materials.
Further, spherical cambered surface 21, arcwall face 41 are identical with the diameter of spheroid 31, and sphere is fitted, and increases contact area, ensure that mouthful moulded board 2 does not loosen with mouth mould 3 is fixing, improve the quality of production of pipeline.
Further, from right to left, chamber is thick to be reduced the cavity that mouth mould 3 and plug 5 are formed gradually, and the cavity thickness of left half is consistent, and ensure that material abundance and the consistency of thickness of pipeline.
Further, mouth moulded board 2, mouth mould 3, plug 5 and spreader 6 are installed in the space formed by front die body 1, support 4 and rear die body 7, and sealed construction improves the quality safety of pipeline.
Further, first flow 81 is not isometrical distribution, and all little runner exit diameter with the second runner 91 of the diameter of first flow 81, improve material mobility in a mold.
The course of work of the present invention:
The present invention is a kind of improves the PVC pipeline extrusion die of product inwall flatness in the course of the work, material is through the second shunting die body 9, after first shunting die body 8, through spreader 6 and after die body 7 form the shunting action of conical cavity after, be provided with support 4, in the cavity that mouth mould 3 and plug 5 are formed, and material is when flowing through mouthful mould 3 from support 4, there is pressure change, this change improves the stationarity of Flow of Goods and Materials, increase the packing of material, improve the situation that board screw rod rotates the material spiral vestige brought, and damping structure layer 32 can consume the vibratory output in pipe production process, add the flowing stationarity of material, improve the inwall flatness of pipeline, thus in itself improve the flatness of product inwall, improve the quality of products.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. one kind is improved the PVC pipeline extrusion die of product inwall flatness, comprise front die body (1), mouth moulded board (2), mouth mould (3), support (4), plug (5), spreader (6), rear die body (7), first shunting die body (8), second shunting die body (9) and merging core (10), it is characterized in that: installing port moulded board (2) in the internal cavities of described front die body (1), described mouth moulded board (2) is ring type structure, a through hole (22) is offered in centre, the right-hand member of described through hole (22) is provided with a spherical cambered surface (21), the right part of described mouth mould (3) is the spheroid (31) of middle ring cutting, the left end of described mouth mould (3) is through mouth moulded board (2) and front die body (1), and the spherical cambered surface (21) of the left side of spheroid (31) and mouth moulded board (2) is fitted, described support (4) is connected with the right side of front die body (1), the arcwall face (41) in the right side of described spheroid (31) and support (4) left side is fitted, the right-hand member screwed hole (51) of described plug (5) is connected with the left end threaded post (61) of spreader (6), described plug (5) is arranged in the die cavity (33) of a mouthful mould (3), and be fixed by spreader (6) and being connected of rear die body (7), the left side of described rear die body (7) is connected with the right side of support (4), the right side and first of described rear die body (7) is shunted die body (8) and is connected, described first shunting die body (8) and second is shunted die body (9) and is connected, and it is fixing by merging core (10) sealing, described first shunting die body (8) inside offers first flow (81), described second shunting die body (9) inside offers the second runner (91).
2. a kind of PVC pipeline extrusion die improving product inwall flatness as claimed in claim 1, is characterized in that: die cavity (33) inwall of described mouth mould (3) bonds a damping structure layer (32).
3. a kind of PVC pipeline extrusion die improving product inwall flatness as claimed in claim 1, it is characterized in that: the mid portion of described rear die body (7) offers conical bore (71), the tapering of described conical bore (71) is identical with the tapering of spreader (6), is 70 ~ 75 °.
4. a kind of PVC pipeline extrusion die improving product inwall flatness as claimed in claim 1, is characterized in that: described spherical cambered surface (21), arcwall face (41) are identical with the diameter of spheroid (31).
5. a kind of PVC pipeline extrusion die improving product inwall flatness as claimed in claim 1, it is characterized in that: the cavity that described mouth mould (3) and plug (5) are formed from right to left, chamber is thick to be reduced gradually, and the cavity thickness of left half is consistent.
6. a kind of PVC pipeline extrusion die improving product inwall flatness as claimed in claim 1, is characterized in that: described mouth moulded board (2), mouth mould (3), plug (5) and spreader (6) are installed in the space formed by front die body (1), support (4) and rear die body (7).
7. a kind of PVC pipeline extrusion die improving product inwall flatness as claimed in claim 1, it is characterized in that: described rear die body (7) and first is shunted die body (8) and is bolted, described support (4) and rear die body (7) are bolted, and described front die body (1) and support (4) are bolted.
8. a kind of PVC pipeline extrusion die improving product inwall flatness as claimed in claim 1, it is characterized in that: described first flow (81) is for not isometrical distribution, and all little runner exit diameter with the second runner (91) of the diameter of first flow (81).
CN201510705467.0A 2015-10-27 2015-10-27 A kind of PVC pipeline extrusion die for improving product inwall flatness Active CN105383032B (en)

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CN201510705467.0A CN105383032B (en) 2015-10-27 2015-10-27 A kind of PVC pipeline extrusion die for improving product inwall flatness

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Application Number Priority Date Filing Date Title
CN201510705467.0A CN105383032B (en) 2015-10-27 2015-10-27 A kind of PVC pipeline extrusion die for improving product inwall flatness

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CN105383032B CN105383032B (en) 2017-12-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106486216A (en) * 2016-11-14 2017-03-08 盐城工学院 A kind of plain conductor high polymer coats processing unit (plant)
CN111941523A (en) * 2020-08-19 2020-11-17 威海瑶池工艺品有限公司 Improve water piping connection auxiliary device of water piping connection firmness

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2299708Y (en) * 1997-04-24 1998-12-09 张更臣 Plastic film mould
CN201525118U (en) * 2009-10-30 2010-07-14 刘永祥 Extrusion die for plastic
CN202097940U (en) * 2011-06-01 2012-01-04 浙江康润机械科技有限公司 Three-layer co-extrusion rubber coated pipe die
CN202668949U (en) * 2012-06-27 2013-01-16 常州市永明机械制造有限公司 Die head of plastic extruding machine
CN202878648U (en) * 2012-10-19 2013-04-17 无锡佳欣电子产品有限公司 One-mould double-tube extruding mould
CN103568253A (en) * 2012-08-11 2014-02-12 宁波康润机械科技有限公司 Plastic extrusion mold

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2299708Y (en) * 1997-04-24 1998-12-09 张更臣 Plastic film mould
CN201525118U (en) * 2009-10-30 2010-07-14 刘永祥 Extrusion die for plastic
CN202097940U (en) * 2011-06-01 2012-01-04 浙江康润机械科技有限公司 Three-layer co-extrusion rubber coated pipe die
CN202668949U (en) * 2012-06-27 2013-01-16 常州市永明机械制造有限公司 Die head of plastic extruding machine
CN103568253A (en) * 2012-08-11 2014-02-12 宁波康润机械科技有限公司 Plastic extrusion mold
CN202878648U (en) * 2012-10-19 2013-04-17 无锡佳欣电子产品有限公司 One-mould double-tube extruding mould

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106486216A (en) * 2016-11-14 2017-03-08 盐城工学院 A kind of plain conductor high polymer coats processing unit (plant)
CN111941523A (en) * 2020-08-19 2020-11-17 威海瑶池工艺品有限公司 Improve water piping connection auxiliary device of water piping connection firmness

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