CN106346740A - Supporting cooling type extruding die - Google Patents
Supporting cooling type extruding die Download PDFInfo
- Publication number
- CN106346740A CN106346740A CN201610881234.0A CN201610881234A CN106346740A CN 106346740 A CN106346740 A CN 106346740A CN 201610881234 A CN201610881234 A CN 201610881234A CN 106346740 A CN106346740 A CN 106346740A
- Authority
- CN
- China
- Prior art keywords
- cooling
- external mold
- pipe
- external
- plastic tube
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a supporting cooling type extruding die. The supporting cooling type extruding die comprises an external die, a mandrel, a cooling structure and a supporting structure; the mandrel is fixed at a central part of an inner cavity of the external die and an annular flow channel of a melted material is formed by the mandrel and the external die; an external end of the mandrel is connected with the supporting structure; a supporting contact part is arranged at a free end of the supporting structure; the supporting contact part is annular and is in contact with a wall surface of the inner cavity of an extruded plastic pipe, and is used for supporting the plastic pipe; an external die cavity wall cooling channel is arranged in a solid part of the external die; one end of the external die cavity wall cooling channel is communicated with an external cooling pipe of the external die and the other end of the external die cavity wall cooling channel is communicated with an annular cooling pipe of the external die; the annular cooling pipe of the external die is arranged in a cavity wall of an external end part of the external die; the annular cooling pipe of the external die is communicated with an outer-pipe cooling part; the outer-pipe cooling part is wound around the extruded plastic pipe. The supporting cooling type extruding die provided by the invention can be used for supporting the extruded plastic pipe and prevents defects that a wall thickness of the plastic pipe is not uniform and a shape is deformed, and can be cooled from the external part after the pipe is molded; errors of a subsequent process are reduced.
Description
Technical field
The invention belongs to plastic pipe extruder technical field, especially relates to a kind of having concurrently and supports and refrigerating function
Die head.
Background technology
Plastics extrusion die is the mould for forming plastic pipe, is arranged on extruding machine outfan, is producing plastic pipe
When, need the mould being formed using mouth mould and core combination to be extruded, mouth mould controls the external shape of plastic pipe, core control
The interior shape of tubulation material, because plastic tube is not cooled down immediately after plastic extrusion, and because of gravity, plastic tube is extruded
When in radial directions easily deformation even the even problem of wall unevenness occurs, the structural behaviour ultimately resulting in homogeneous tube is poor.
Content of the invention
In view of this, the invention is directed to a kind of plastic extrusion die having supporting construction and having cooling structure
Tool, supports plastic flexible pipe structure during extrusion, is cooled down simultaneously outside pipe, accelerates the cooling and solidifying speed of plastic tube.
For reaching above-mentioned purpose, the technical scheme of the invention is achieved in that
A kind of support cooled extrusion die, including external mold, core, cooling structure and supporting construction, described core passes through
Core connecting portion is fixed on external mold lumen centers portion, forms the runner of annular melting charge, and the external end of core is connected with supporting construction,
Supporting construction be column structure or pyramidal structure, supportive body be during column structure form umbrella frame shape, supporting construction oneself
Support contact site is provided with by end, described support contact site is annular in shape, and contacts with the plastic tube inner chamber wall of extrusion, to plastics
Flexible pipe is played a supporting role, and arranges an outer die cavity wall cooling duct, one end and the external cooling tube of external mold in described external mold entity portion
Connect, the other end and external mold annular cooling duct connects, described external mold annular cooling duct in the cavity wall of external mold outer end, outer modular ring
Shape cooling duct communicates with managing outer cooling end, manages outer cooling end and is looped around outside the plastic tube of extrusion.
Further, described support contact site smooth surface, supports contact with plastic pipe inner wall in the way of face contacts.
Further, the outer cooling end of described pipe is in double-layer sleeve structure, the cavity that two sleeves are formed annular cooling with external mold
Road communicates, if inner sleeve has dry hole, cooling water flows into pair hole through inner sleeve for the space of sleeves formation and sprays, and plastic tube is entered
Row is outer to be cooled down.
With respect to prior art, the plastic pipe mold described in the invention has a following advantage:
The invention can support plastic flexible pipe structure during extrusion, prevents plastic tube wall thickness irregular, shape distortion
Defect, can be cooled down after pipe molding outside pipe, accelerate the cooling and solidifying speed of plastic tube, prevent from increasing follow-up pressure ripple
The fabrication errors such as stricture of vagina, reduce product quality.
Brief description
The accompanying drawing constituting the part of the invention is used for providing the invention is further understood, and the present invention creates
The schematic description and description made is used for explaining the invention, does not constitute the improper restriction to the invention.?
In accompanying drawing:
Fig. 1 is the plastic pipe mold schematic diagram described in the invention embodiment.
Description of reference numerals:
1- external mold；2- core；3- plastic tube；The external cooling tube of 11- external mold；12 outer die cavity wall cooling ducts；13- external mold annular
Cooling duct；14- manages outer cooling end；21- core connecting portion；210- connecting portion through hole；22- supportive body；23 support contact sites.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the invention and the feature in embodiment can
To be mutually combined.
In the description of the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than instruction
Or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, be not therefore understood that
It is the restriction to the invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " are meant that two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly
Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning in the invention for the term.
To describe the invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In conjunction with shown in Fig. 1, a kind of support cooled extrusion die, including external mold 1, core 2, cooling structure and support knot
Structure, described core 2 is fixed on external mold 1 lumen centers portion by core connecting portion 21, forms the runner of annular melting charge, described core
Mould 2 includes tapered portion and cylindrical portion, and tapered portion top is fixed on core connecting portion 2, and tapered portion bottom is connected with cylindrical portion, cone
Shape portion base diameter and cylindrical portion equal diameters, cylindrical portion coaxial with external mold 1 and by between gap form runner, outside core 2
Put end, that is, the cylindrical portion free end of core 2 is connected with supportive body 22, supportive body 22 structure is that some column structures form umbrella
Skeleton construction, also can tapering structural member, the free end of supportive body 22 is provided with support contact site 23, described support contact site 23
Annularly, and with the plastic tube 3 inner chamber wall of extrusion contact, plastic tube 3 is played a supporting role, in described external mold 1 entity portion
One outer die cavity wall cooling duct 12 of setting, one end cooling tube 11 external with external mold connects, the other end annular cooling duct 13 with external mold
Connect, described external mold annular cooling duct 13 in the cavity wall of external mold 1 outer end, external mold annular cooling duct 13 with manage outer cooling end 14
Communicate, manage outer cooling end 14 and be looped around outside the plastic tube 3 of extrusion, described support contact site 23 smooth surface, with plastic tube 3 inwall
Support contact in the way of the contact of face, the outer cooling end 14 of described pipe is in double-layer sleeve structure, cavity and external mold that two sleeves are formed
Annular cooling duct 13 communicates, if inner sleeve has dry hole, cooling water flows into pair hole through inner sleeve for the space of sleeves formation and sprays,
Outer cooling is carried out to plastic tube 3, the outer cooling end 14 of described pipe can also be around some tubular structures of extrusion setting, tube chamber
Communicate with external mold annular cooling duct (13), the free end closure of tubular structure, if having dry hole on tube wall, for the spray of cooling water
Go out.
Work process: in plastic tube 3 extrusion, cooling water flows into from the external cooling tube of external mold 11, cold through outer die cavity wall
But flow in the outside modular ring shape cooling duct 13 in road 12, now the water in external mold annular cooling duct 13 can be to moulding in extrusion
Expects pipe 3 is precooled, and prevents melting charge in extrusion from blocking extrusion, the water that inflow external mold annular is cooled in 13 flows again
Enter and manage in outer cooling end 14, the perforate through managing outer cooling end 14 for the cooling water sprays, and plastic tube 3 is cooled down, and in plastic tube 3
The support contact site of the supporting construction that portion is connected with core 2 continued support plastic tube 3 in extrusion, prevents plastic tube from occurring
Thickness is irregular or deforms, and leads to subsequently press the appearance of the fabrication errors such as ripple.
The foregoing is only the preferred embodiment of the invention, not in order to limit the invention, all this
Within the spirit of innovation and creation and principle, any modification, equivalent substitution and improvement made etc., should be included in the invention
Protection domain within.
Claims (6)
1. a kind of plastic tube extrusion die it is characterised in that: include external mold (1), core (2), cooling structure and supporting construction, institute
State core (2) and be fixed on external mold (1) lumen centers portion by core connecting portion (21) is coaxial, core (2) forms ring with external mold (1)
The runner of shape melting charge, the external end of core (2) is connected with supporting construction, described supporting construction free end and plastic tube (3) inwall
Abut against, an outer die cavity wall cooling duct (12) is set in external mold (1) entity portion, and outer die cavity wall cooling duct (12) one end is with outward
The external cooling tube of mould (11) is connected, and the other end is communicated with external mold annular cooling duct (13), described external mold annular cooling duct (13)
With external mold (1) central shaft for axle center ringwise passage in the cavity wall of external mold (1) outer end, external mold annular cooling duct (13) with pipe
Outer cooling end (14) communicates, and the outer cooling end of pipe (14) is looped around the plastic tube (3) of extrusion outward.
2. a kind of plastic tube extrusion die according to claim 1 it is characterised in that: described core (2) includes tapered portion
And cylindrical portion, tapered portion top is fixed on core connecting portion (2), and tapered portion bottom is connected with cylindrical portion, and tapered portion bottom is straight
Footpath and cylindrical portion equal diameters, cylindrical portion coaxial with external mold (1) and by between gap form runner.
3. a kind of plastic tube extrusion die according to claim 1 it is characterised in that: the supportive body of described supporting construction
(22) structure is some column structure composition umbrella frame constructions, and the free end of supportive body (22) is provided with support contact site
(23), described support contact site (23) is annular in shape, and smooth with plastic tube (3) inner chamber wall abuts.
4. a kind of plastic tube extrusion die according to claim 1 it is characterised in that: the supportive body of described supporting construction
(22) structure is tapering structural member, and tapered tip is fixed in core (2) outer end, and tapered bottom end is supported with plastic tube (3) inwall and connects
Touch.
5. a kind of plastic tube extrusion die according to claim 1 it is characterised in that: the outer cooling end (14) of described pipe is in double
Layer tube-in-tube structure, the cavity being formed between two sleeves of sleeve one end is communicated with external mold annular cooling duct (13), and another end closure is interior
If sleeve has dry hole, cooling water energy sprays from inner sleeve hole and plastic tube (3) outer wall is cooled down.
6. a kind of plastic tube extrusion die according to claim 1 it is characterised in that: the outer cooling end (14) of described pipe is in pipe
Shape, one end is fixed on external mold (1) outer end around mould extrusion, and tube chamber is communicated with external mold annular cooling duct (13), and pipe is outer to be cooled down
The free end closure of the tubular structure in portion (14), if having dry hole on tube wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610881234.0A CN106346740A (en) | 2016-10-09 | 2016-10-09 | Supporting cooling type extruding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610881234.0A CN106346740A (en) | 2016-10-09 | 2016-10-09 | Supporting cooling type extruding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106346740A true CN106346740A (en) | 2017-01-25 |
Family
ID=57865459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610881234.0A Pending CN106346740A (en) | 2016-10-09 | 2016-10-09 | Supporting cooling type extruding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106346740A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107599415A (en) * | 2017-09-30 | 2018-01-19 | 成都纺织高等专科学校 | A kind of 3D printing takes base air pressure support device |
| CN114630744A (en) * | 2019-10-15 | 2022-06-14 | 巴顿菲尔-辛辛那提德国有限公司 | Component for extrusion line |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001030331A (en) * | 1999-07-16 | 2001-02-06 | Mitsubishi Plastics Ind Ltd | Porous pipe manufacturing apparatus |
| CN203713035U (en) * | 2013-12-13 | 2014-07-16 | 新疆天业（集团）有限公司 | Handpiece for co-extrusion biaxial stretching composite pipe |
| CN204687329U (en) * | 2015-05-08 | 2015-10-07 | 张义 | The internal diameter shaping equipment of extruder |
| CN206201432U (en) * | 2016-10-09 | 2017-05-31 | 天津中天富泰科技有限公司 | One kind extrusion cooling integrated formula mould |
-
2016
- 2016-10-09 CN CN201610881234.0A patent/CN106346740A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001030331A (en) * | 1999-07-16 | 2001-02-06 | Mitsubishi Plastics Ind Ltd | Porous pipe manufacturing apparatus |
| CN203713035U (en) * | 2013-12-13 | 2014-07-16 | 新疆天业（集团）有限公司 | Handpiece for co-extrusion biaxial stretching composite pipe |
| CN204687329U (en) * | 2015-05-08 | 2015-10-07 | 张义 | The internal diameter shaping equipment of extruder |
| CN206201432U (en) * | 2016-10-09 | 2017-05-31 | 天津中天富泰科技有限公司 | One kind extrusion cooling integrated formula mould |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107599415A (en) * | 2017-09-30 | 2018-01-19 | 成都纺织高等专科学校 | A kind of 3D printing takes base air pressure support device |
| CN114630744A (en) * | 2019-10-15 | 2022-06-14 | 巴顿菲尔-辛辛那提德国有限公司 | Component for extrusion line |
| CN114630744B (en) * | 2019-10-15 | 2024-04-26 | 巴顿菲尔-辛辛那提德国有限公司 | Component for extrusion line and method for manufacturing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170125 |