CN106738756A - New profile shapes inner chamber covering co-extrusion mechanism - Google Patents
New profile shapes inner chamber covering co-extrusion mechanism Download PDFInfo
- Publication number
- CN106738756A CN106738756A CN201611196513.XA CN201611196513A CN106738756A CN 106738756 A CN106738756 A CN 106738756A CN 201611196513 A CN201611196513 A CN 201611196513A CN 106738756 A CN106738756 A CN 106738756A
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- CN
- China
- Prior art keywords
- extrusion
- runner
- covering
- pvc
- stream road
- 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.)
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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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- 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
- B29K—INDEXING 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
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/001—Profiled members, e.g. beams, sections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses new profile shapes inner chamber covering co-extrusion mechanism, die head including feature board composition, PVC is provided with the die head to gather materials runner and covering co-extrusion stream road, the covering co-extrusion stream road is located between the flow distribution plate of die head and machine neck, the PVC gathers materials flow passage combined area shaping mold insert, and the covering co-extrusion stream road is molded mold insert by being pressurized the combined area of combined type flow passage；The booster-type combined type runner includes flow manifold and supercharging runner, and the supercharging runner is divided into some Pressure channels, the Pressure channel to be more than the sectional area away from flow manifold near the sectional area of flow manifold by some grating dividing strips.Perfection of the present invention solves PVC profile, on the premise of product specification and properties is not influenceed, substantially reduces the production cost and application field of section bar, greatly reduces die manufacturing cost and production cost.
Description
Technical field
Field is made the present invention relates to plastic irregular profile, more particularly to a kind of plastic irregular profile is during extrusion molding,
The co-extrusion mechanism of co-extrusion is covered to die cavity internal chamber wall.
Background technology
During extrusion molding is produced, PVC base-materials are reclaimed and can improve effective measures of the plastic irregular profile through benefit.PVC
Raw material, often experiences a thermal histories, can all reduce PVC inherent qualities, and particularly anticorrosive, anti-aging aspect performance can be significantly
Drop bottom, also profile shapes application of the occasion of particular/special requirement etc., and use co-extrusion extruding technology, it is possible to overcome above-mentioned deficiency,
The properties of product, the cost of material of Talon Di Liao enterprises are not influenceed not only.At present, irregular section bar is combined generally using altogether
What crowded mode was obtained, i.e., two kinds different material are extruded through different runners respectively in co-extrusion die head, then compound in recombination region
Shaping.Co-extruding flow channel for extruding composite bed is opened in co-extrusion preformed board, co-extrusion material via co-extruding flow channel sprue,
Behind sector diffuence road peace secondary flow road, the base base surface of covering die cavity extrusion forms compound coating layer.Conventional formula co-extrusion mode,
The problem below the co-extrusion surface generally existing of co-extrusion section bar can be directly resulted in：Coextruded layer is in uneven thickness, and extrusion is unstable
Fixed easy material leakage, coextruded layer surface brightness is poor, the defect such as color and luster is uneven.
The content of the invention
Present invention aim to address the deficiencies in the prior art, there is provided one kind can on die cavity inwall uniform fold co-extrusion
Co-extrusion mechanism.
The technical solution adopted by the present invention is：New profile shapes inner chamber covering co-extrusion mechanism, including the mould that feature board is constituted
Head, is provided with PVC and gathers materials runner with covering co-extrusion stream road in the die head, the covering co-extrusion stream road is located at the shunting of die head
Between plate and machine neck, the PVC gathers materials flow passage combined area shaping mold insert, and the covering co-extrusion stream road is by increasing
The pressure combined combined area's shaping mold insert of flow passage；The booster-type combined type runner includes that flow manifold and supercharging are flowed
Road, the supercharging runner is divided into some Pressure channels by some grating dividing strips, and the Pressure channel is near flow manifold
Sectional area is more than the sectional area away from flow manifold.
As a further improvement on the present invention, the flow manifold is triangle, and the connection of its summit covers co-extrusion stream road,
Its base connection supercharging runner.
The present invention use beneficial effect be：The covering co-extrusion mechanism of this structure realizes co-extrusion section bar and was extruded continuously
Cheng Zhong, coextruded layer can equably tile fusion on base material, and effectively solution coextruded layer is in uneven thickness, and extrusion is unstable
Easy material leakage, coextruded layer surface brightness is poor, the problems such as color and luster is uneven.Perfection of the present invention solves PVC profile, is not influenceing to produce
On the premise of product specification and properties, substantially reduce the production cost and application field of section bar, greatly reduce Making mold into
Sheet and production cost.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is operating diagram of the present invention.
Shown in figure：1 die head, 2 PVC gather materials runner, 3 covering co-extrusion stream roads, 4 joint product PVC binder layers, 5
The joint product co-extrusion bed of material, 6 supercharging combined type runners, 7 combined area's shaping mold inserts, 8 grating dividing strips.
Specific embodiment
With reference to Fig. 1 and Fig. 2, the present invention is described further.
As illustrated, new profile shapes inner chamber covering co-extrusion mechanism, including the die head 1 that feature board is constituted, in the die head 1
It is provided with PVC to gather materials runner 2 and covering co-extrusion stream road 3, the covering co-extrusion stream road 3 is located at the flow distribution plate and machine neck of die head 1
Between, the PVC gathers materials the connection combined type recombination region of runner 2 shaping mold insert 7, and the covering co-extrusion stream road 3 passes through supercharging group
The connection combined type recombination region of box-like runner 6 is molded mold insert 7；The booster-type combined type runner 6 includes flow manifold 61 and supercharging
Runner 62, the supercharging runner 62 is divided into some Pressure channels by some grating dividing strips 8, and the Pressure channel is near shunting
The sectional area of runner 61 is more than the sectional area away from flow manifold 61.
It is to be composite that PVC base-materials move to combined area's shaping mold insert by PVC base-materials runner 2；Co-extrusion material passes through
Covering co-extrusion stream road 3 moves to supercharging combined type runner 6, then moves again to same PVC after combined area's shaping mold insert 7
Matrix composition, final two stock materials stream pools the molten base that one stream completes article shape, and joint product is processed respectively,
Form joint product PVC binder layers 4 and the joint product co-extrusion bed of material 5.
Covering co-extruding flow channel 3 is opened between rebound, flow distribution plate and machine neck, beneficial to co-extrusion material inlet amount is increased, is reduced
Influence to PVC base base materials.
Supercharging combined type runner is pressurized combined type runner using the fan-shaped tiling equal clearance of rack-style, according to Bernoulli Jacob's fluid theorem
Understand, for a successional perfect fluid, the volume flow on each sectional area is equal, when sectional area is relatively bigger,
Flow velocity can be corresponding smaller, and Fluid pressure is then corresponding bigger.On the one hand the structure of booster-type combined flow channel realizes whole co-extrusion face
On co-extrusion stream stabilization, on the other hand improve melt pressure, it is ensured that the plasticizing of co-extrusion material is uniform and packing.Melt by
The further current stabilization of runner, finally enters coextru-lamination area, and co-extrusion material is equably fused together with base base, so as to realize to base base
The purpose of uniform co-extrusion, makes co-extrusion material be evenly distributed on the inwall of base-material.
To ensure the stabilization of co-extrusion stream, melt pressure is improved, it is ensured that the uniform packing of the painting and calligraphy of co-extrusion material, described point
Stream runner is triangle, its summit connection covering co-extrusion stream road, its base connection supercharging runner.
Can be realized in a kind of brand-new PVC raw materials plus particular/special requirement material using the inner chamber covering co-extrusion mechanism of this structure
Cladding co-extrusion processing mode, by the ageing resistance required by die cavity inwall co-extrusion last layer is good, it is corrosion resistance and good, antimagnetic
Property or special material the co-extrusion bed of material, effectively solve conventional formula co-extrusion mode, the co-extrusion surface that can directly result in co-extrusion section bar is general
Store-through, coextruded layer is in uneven thickness, and the unstable easy material leakage of extrusion, coextruded layer surface brightness is poor, and color and luster is uneven
The problems such as.
The covering co-extrusion mechanism of this structure realizes co-extrusion section bar in Continuous Extrusion Process, and coextruded layer can equably tile
Fusion is on base material, and effectively solution coextruded layer is in uneven thickness, the unstable easy material leakage of extrusion, coextruded layer surface brightness
Difference, the problems such as color and luster is uneven.Perfection of the present invention solves PVC profile, is not influenceing the premise of product specification and properties
Under, the production cost and application field of section bar are substantially reduced, greatly reduce die manufacturing cost and production cost.
Those skilled in the art, can also be it is to be understood that protection scheme of the invention is not limited only to the above embodiments
Various permutation and combination and conversion are carried out on the basis of above-described embodiment, on the premise of without prejudice to spirit of the invention, to the present invention
The various conversion for carrying out are all fallen within protection scope of the present invention.
Claims (2)
1. new profile shapes inner chamber covers co-extrusion mechanism, it is characterized in that the die head including feature board composition（1）, the die head（1）
PVC is inside provided with to gather materials runner（2）With covering co-extrusion stream road（3）, the covering co-extrusion stream road（3）Positioned at die head（1）Point
Between stream plate and machine neck, the PVC gathers materials runner（2）Connection combined type recombination region is molded mold insert（7）, the covering co-extrusion stream
Road（3）By being pressurized combined type runner（6）Connection combined type recombination region is molded mold insert（7）；The supercharging combined type runner（6）Bag
Include flow manifold（61）With supercharging runner（62）, the supercharging runner（62）By some grating dividing strips（8）It is divided into some increasings
Pressure passageway, the Pressure channel is near flow manifold（61）Sectional area be more than away from flow manifold（61）Sectional area.
2. new profile shapes inner chamber according to claim 1 covers co-extrusion mechanism, it is characterized in that the flow manifold（61）
It is triangle, its summit connection covering co-extrusion stream road, its base connection supercharging runner（62）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196513.XA CN106738756A (en) | 2016-12-22 | 2016-12-22 | New profile shapes inner chamber covering co-extrusion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196513.XA CN106738756A (en) | 2016-12-22 | 2016-12-22 | New profile shapes inner chamber covering co-extrusion mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106738756A true CN106738756A (en) | 2017-05-31 |
Family
ID=58900286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611196513.XA Pending CN106738756A (en) | 2016-12-22 | 2016-12-22 | New profile shapes inner chamber covering co-extrusion mechanism |
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| Country | Link |
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| CN (1) | CN106738756A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471583A (en) * | 2017-09-15 | 2017-12-15 | 浙江百纳橡塑设备有限公司 | Composite handpiece device for rubber waterstop with steel edge |
| CN112549477A (en) * | 2020-11-24 | 2021-03-26 | 山东霞光集团有限公司 | Preparation device and method of graphene oxide modified ultra-wide wood-plastic door plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435141A (en) * | 1982-04-07 | 1984-03-06 | Polyloom Corporation Of America | Multicomponent continuous film die |
| CN102873853A (en) * | 2012-10-11 | 2013-01-16 | 浙江精诚模具机械有限公司 | Multilayer composite extrusion die head |
| CN103786330A (en) * | 2013-12-04 | 2014-05-14 | 安徽耐科挤出科技股份有限公司 | Supercharge mixed flow perforated plate for wood plastic profiled bar extrusion mold |
-
2016
- 2016-12-22 CN CN201611196513.XA patent/CN106738756A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435141A (en) * | 1982-04-07 | 1984-03-06 | Polyloom Corporation Of America | Multicomponent continuous film die |
| CN102873853A (en) * | 2012-10-11 | 2013-01-16 | 浙江精诚模具机械有限公司 | Multilayer composite extrusion die head |
| CN103786330A (en) * | 2013-12-04 | 2014-05-14 | 安徽耐科挤出科技股份有限公司 | Supercharge mixed flow perforated plate for wood plastic profiled bar extrusion mold |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471583A (en) * | 2017-09-15 | 2017-12-15 | 浙江百纳橡塑设备有限公司 | Composite handpiece device for rubber waterstop with steel edge |
| CN107471583B (en) * | 2017-09-15 | 2021-02-19 | 浙江百纳橡塑设备有限公司 | Steel-edged rubber water stop composite machine head device |
| CN112549477A (en) * | 2020-11-24 | 2021-03-26 | 山东霞光集团有限公司 | Preparation device and method of graphene oxide modified ultra-wide wood-plastic door plate |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170531 |