CN101811363A - Duplex-spiral plane 2n type structure flow channel co-extruding blow molding machine head - Google Patents
Duplex-spiral plane 2n type structure flow channel co-extruding blow molding machine head Download PDFInfo
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- CN101811363A CN101811363A CN201010123693A CN201010123693A CN101811363A CN 101811363 A CN101811363 A CN 101811363A CN 201010123693 A CN201010123693 A CN 201010123693A CN 201010123693 A CN201010123693 A CN 201010123693A CN 101811363 A CN101811363 A CN 101811363A
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- China
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- flow channel
- machine head
- runner
- blow molding
- molding machine
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a duplex-spiral plane 2n type structure flow channel co-extruding blow molding machine head, which improves a chute type flow channel in an original co-extruding film blow molding machine head, and the flow channel is of the 2n type plane structure which divides one into two, divides two into four and divides four into eight. The transverse section of the flow channel is designed into a U-shape, and the flow channel has few inflection points and no dead angle. The structure can enable the material to be heated more fully, the U-shaped design improves the flow performance of the material effectively, after the material enters the flow channel through a feeding port, the 2n type structure can enable the material to distribute uniformly in the machine head, and the material is heated uniformly, thus enabling extruded film products to have consistent density.
Description
Technical field
The present invention relates to a kind of coextrusion blow machine head runner, is a kind of double spiral plane co-extrusion superposing type flow channel that relates to.
Background technology
Along with the development and the progress of society, people's quality of life is constantly improved, and is also more and more higher to various plastic film performance demands.The head of existing coextrusion blow unit all is inclined flow passage formula coextrusion blow machine heads, inclined flow passage formula coextrusion blow machine head is because flex point and dead angle are more, be easy to generate thickener, directly caused the situation of being heated of material in the head inhomogeneous, influenced the mobile performance of material, make the uniformity of discharging poor, uneven distribution, consequences such as the physical property difference of product.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of seven-layer co-extrusion inflation film manufacturing machine flow channel is provided, its purpose is that the inclined flow passage design that is primarily aimed at existing inflation film manufacturing machine is not enough, and a kind of head pressed density height is provided, and flex point is few, the flow passage structure design at no dead angle.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be: a kind of coextrusion blow machine head is provided, and this head includes core, runner dish, takes over a business, internal orifice mould, collar extension mould and copper rod form, and the runner in the flow channel dish is distributed in same plane.
According to double spiral plane 2 of the present invention
nType structure runner coextrusion blow machine head one optimal technical scheme: described runner is a double helix, and the cross section is the U type.
According to double spiral plane 2 of the present invention
nType structure runner coextrusion blow machine head one optimal technical scheme: described runner be one-to-two, two minutes four, four minutes eight 2
nThe type flow passage structure.
Beneficial effect of the present invention is: coextrusion blow unit inclined flow passage formula head different from the past, but Composite Double helical flow path structure; The head flex point is few, does not have the dead angle; U type pipeline is dispersed throughout runner dish, 2
nThe type structure helps to cause the discharging good evenness, and fineness is good, and thin and thick is even; The pressed density height, product tensile strength of producing and elongation at break height; Soffening is good, and defect ware reduces significantly.
Description of drawings
Fig. 1 is that dormancy face figure is cutd open in runner dish inner flow passage pipe distribution of the present invention.
The 1-charging aperture
The 2-discharging opening
The specific embodiment
The double spiral plane 2 of the present invention's design
nType structure runner is positioned on the inflation film manufacturing machine runner dish 2
nThe type structural design, U type runner section.
Utilize the course of work of the present invention: thermoplastic is heated to molten condition through the pulverizing of hopper by extruder, enters in the head, by charging aperture, through helical planes 2 of the present invention
nBehind the type structure runner, extrude, adjust the goods minimal thickness,, form film with the vane cooling by internal orifice mould and the collar extension mould that settle the head upper end with the form of compound fluid shape.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (3)
1. coextrusion film blowing machine head includes core, runner dish, takes over a business, internal orifice mould, collar extension mould and copper rod form, and it is characterized in that: the runner in the flow channel dish is distributed in same plane.
2. according to the runner in the described runner dish of claim 1, it is characterized in that: described runner is a double helix, and the cross section is the U type.
3. according to the runner in the described runner dish of claim 1, it is characterized in that: described runner be one-to-two, two minutes four, four minutes eight 2
nThe type flow passage structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010123693A CN101811363A (en) | 2010-03-12 | 2010-03-12 | Duplex-spiral plane 2n type structure flow channel co-extruding blow molding machine head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010123693A CN101811363A (en) | 2010-03-12 | 2010-03-12 | Duplex-spiral plane 2n type structure flow channel co-extruding blow molding machine head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101811363A true CN101811363A (en) | 2010-08-25 |
Family
ID=42618796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010123693A Pending CN101811363A (en) | 2010-03-12 | 2010-03-12 | Duplex-spiral plane 2n type structure flow channel co-extruding blow molding machine head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101811363A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363361A (en) * | 2011-10-26 | 2012-02-29 | 广东金明精机股份有限公司 | Handpiece of multi-layer co-extrusion blow molding machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2738983Y (en) * | 2004-11-15 | 2005-11-09 | 马镇鑫 | Flow-way distribution plate of novel overlapped mould head |
| CN2758055Y (en) * | 2004-12-15 | 2006-02-15 | 汕头市龙湖区龙津松耐塑料设备厂 | Head piece of multilayer coextrusion blow moulding machine |
-
2010
- 2010-03-12 CN CN201010123693A patent/CN101811363A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2738983Y (en) * | 2004-11-15 | 2005-11-09 | 马镇鑫 | Flow-way distribution plate of novel overlapped mould head |
| CN2758055Y (en) * | 2004-12-15 | 2006-02-15 | 汕头市龙湖区龙津松耐塑料设备厂 | Head piece of multilayer coextrusion blow moulding machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363361A (en) * | 2011-10-26 | 2012-02-29 | 广东金明精机股份有限公司 | Handpiece of multi-layer co-extrusion blow molding machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100825 |