CN201235600Y - Screw special for oxygen barrier EVOH extrusion - Google Patents
Screw special for oxygen barrier EVOH extrusion Download PDFInfo
- Publication number
- CN201235600Y CN201235600Y CNU2008200867327U CN200820086732U CN201235600Y CN 201235600 Y CN201235600 Y CN 201235600Y CN U2008200867327 U CNU2008200867327 U CN U2008200867327U CN 200820086732 U CN200820086732 U CN 200820086732U CN 201235600 Y CN201235600 Y CN 201235600Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- section
- adopts
- evoh
- screw
- 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.)
- Expired - Fee Related
Links
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 title claims abstract description 16
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000004715 ethylene vinyl alcohol Substances 0.000 title claims abstract description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 14
- 239000001301 oxygen Substances 0.000 title claims abstract description 14
- 238000001125 extrusion Methods 0.000 title abstract description 7
- 230000004888 barrier function Effects 0.000 title 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 13
- 239000011347 resin Substances 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000007747 plating Methods 0.000 abstract description 3
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 description 4
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 239000002131 composite material Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
Images
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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an oxygen resisting EVOH extrusion special screw rod which adopts a whole spiral line structure, a spiral groove has a single special line and large section structure, the screw rod is formed by three functional sections of a feeding section, a compressing section and a homogenizing section, the bottom diameter of the screw rod of the feeding section and the homogenizing section adopts uniform bottom diameter sections with different sizes, the bottom of the spiral groove of the compressing section adopts an steadily increasing bottom diameter section structure with different diameters, the head of the screw rod adopts a R-shaped spherical structure, the screw rod flows through a material flowing passage and adopts an uniform-diameter and uniform-pitch structure, and the surface of the flowing passage of the screw rod is provided with a nickel plating layer or is polished after being plated with chrome. The utility model can better solve the problems of poor plasticization, unstable extrusion, easy decomposition of materials and material cleaning after machine halt in an oxygen resisting resin extruding process, and the inner quality and the appearance quality of the extruded oxygen resisting resin are obviously improved and increased.
Description
Technical field
The utility model relates to a kind of plastic extruder, relates in particular to a kind of compound bolt special of extruding of resistance oxygen that is used for the plastic resin combination.
Background technology
EVOH is the english abbreviation of Ethylene vinyl alcohol copolymer, is a kind of ventilative resistance epoxy resins that is exclusively used in multiple plastic products.Because its unique resin characteristic of EVOH, thereby the specific function needs of single screw extrusion machine have been determined with screw rod.At present domesticly extruding the screw rod that the used screw rod of this special resin generally adopts the full gradual change cross section structure of tradition; adopt this structure screw rod continuous reducing characteristics owing to old-fashioned screw-rod structure when extruding EVOH; thereby make that material is produced to be decomposed; cleaning to screw rod after decomposing brings difficulty; and each shut down that the back is more difficult to clean up screw rod, product quality has been brought hidden danger after reinstalling equipment.Facts have proved that old-fashioned structure screw rod also exists in extrusion extrudes unstable and plasticizing quality problem, and is easy to generate and extrudes wave phenomenon.
Summary of the invention
The utility model main purpose is at the existing in prior technology deficiency, thereby develop and a kind ofly design, can solve the plasticizing resistance oxygen EVOH bad, that extrude instability, the easy resolution problem of material that extrudes in the resistance epoxy resins process and extrude bolt special according to material feature.
Another purpose of the utility model is to solve when shutting down to realize that the resistance oxygen EVOH of Rapid Cleaning extrudes bolt special to screw surface.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of resistance oxygen EVOH extrudes bolt special, it is characterized in that: screw rod adopts screw structure completely, and screw channel is single helical and huge cross section structure; Described screw rod is made up of feeding section, compression section, three functional sections of homogenizing zone; What described screw rod base diameter reinforced and homogenizing zone adopted different size waits cross section directly, the end, (perhaps being called impartial cross section structure); What different-diameter was adopted in the screw channel of described compression section bottom all increases progressively footpath, end cross section structure (perhaps be called reducing etc. all increase end gauge structure); The head of described screw rod adopts R type spherical structure.
The technical solution of the utility model can also be further perfect,
As preferably, the described screw rod material runner of flowing through is taked isometrical uniform pitch structure.
As preferably, the water passage surface of described screw rod has one deck nickel coating; Perhaps carry out polishing after the chromium plating.
Therefore, the beneficial effects of the utility model are: adopt resistance oxygen EVOH to extrude the material mouth wave phenomenon that three unequal section structure screw rods have reduced extrusion, improved the laminated intensity between the composite bed; And have and unique clean or self-cleaning function fast when changing different resins shutting down.Thereby can well solve plasticizing in extruding resistance epoxy resins process bad, extrude instability, material easily decompose and shuts down after material clean problem, make and extrude the inherent quality that hinders epoxy resins and presentation quality and be significantly improved and improve.
Description of drawings
Accompanying drawing 1 is a kind of planar structure schematic diagram of the present utility model;
Accompanying drawing 2 is a kind of perspective view of the present utility model.
The specific embodiment
Below by embodiment also in conjunction with the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment:
Screw rod as shown in Figure 1 and Figure 2 is made up of feeding section 1, compression section 2,3 three functional sections of homogenizing zone; Wherein to account for the ratio of the total helical length of screw rod be L1=30-40% to feeding section, compression section L2=20-25%, homogenizing zone L3=35-50%.What the screw rod base diameter of feeding section 1 and homogenizing zone 3 adopted different size waits cross section directly, the end, perhaps is called impartial cross section structure; What different-diameter was adopted in the screw channel of compression section 2 bottom all increases progressively footpath, end cross section structure, perhaps is called reducing etc. and all increases end gauge structure; Screw head 4 adopts suitable extrusion resin not stop structure, makes extruded material not produce dead angle and dead point at head, and promptly head adopts R type spherical structure.The screw rod material runner of flowing through is taked isometrical uniform pitch structure.The water passage surface of screw rod has one deck nickel coating, perhaps carries out polishing after the chromium plating.Simultaneously the barrel that is used is also taked the not adhering method processing of corresponding surface, spout increases rational cooling system.This structure screw diameter scope can be from small to large, and specification meets the relevant national standard requirement, has improved the interchangeability of screw rod.
The utility model also can be widely used in extruding of different coated with multiple layer adhesive resin materials, as the goods that are used for composite pipes such as PB+ bonding agent+EVOH extrude, thereby can widen the range of application of this structure screw rod.
Claims (4)
1, a kind of resistance oxygen EVOH extrudes bolt special, it is characterized in that: screw rod adopts screw structure completely, and screw channel is single helical and huge cross section structure; Described screw rod is made up of feeding section, compression section, three functional sections of homogenizing zone; What described screw rod base diameter reinforced and homogenizing zone adopted different size waits cross section directly, the end; What different-diameter was adopted in the screw channel of described compression section bottom all increases progressively footpath, end cross section structure; The head of described screw rod adopts R type spherical structure.
2, resistance oxygen EVOH according to claim 1 extrudes bolt special, it is characterized in that: the runner of screw rod is taked isometrical uniform pitch structure.
3, resistance oxygen EVOH according to claim 1 and 2 extrudes bolt special, and it is characterized in that: there is one deck nickel coating on the surface of the runner of screw rod.
4, resistance oxygen EVOH according to claim 1 and 2 extrudes bolt special, it is characterized in that: there is the chromium coating of one deck through polishing on the surface of the runner of screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200867327U CN201235600Y (en) | 2008-05-04 | 2008-05-04 | Screw special for oxygen barrier EVOH extrusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200867327U CN201235600Y (en) | 2008-05-04 | 2008-05-04 | Screw special for oxygen barrier EVOH extrusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201235600Y true CN201235600Y (en) | 2009-05-13 |
Family
ID=40648339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200867327U Expired - Fee Related CN201235600Y (en) | 2008-05-04 | 2008-05-04 | Screw special for oxygen barrier EVOH extrusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201235600Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920551A (en) * | 2010-08-10 | 2010-12-22 | 昆山科信橡塑机械有限公司 | Bolt special for internally and externally shielded cable material |
| CN113352565A (en) * | 2021-05-26 | 2021-09-07 | 舟山德玛吉实业有限公司 | High-performance chromium carbide permeable machine barrel screw |
-
2008
- 2008-05-04 CN CNU2008200867327U patent/CN201235600Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920551A (en) * | 2010-08-10 | 2010-12-22 | 昆山科信橡塑机械有限公司 | Bolt special for internally and externally shielded cable material |
| CN101920551B (en) * | 2010-08-10 | 2012-11-21 | 昆山科信橡塑机械有限公司 | Bolt special for internally and externally shielded cable material |
| CN113352565A (en) * | 2021-05-26 | 2021-09-07 | 舟山德玛吉实业有限公司 | High-performance chromium carbide permeable machine barrel screw |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101118025A (en) | PVC-U composite nano drainpipe manufacturing method | |
| CN201235600Y (en) | Screw special for oxygen barrier EVOH extrusion | |
| CN101447261B (en) | Processing method of cable with totally colored surface and extrusion die | |
| CN201712152U (en) | Tube extrusion molding mould | |
| CN204869572U (en) | Three compound shape of mouth as one speakss of extruding of rubber | |
| CN201820524U (en) | Extrusion deviation-adjustment-free positioning-type extruding die for cable plastic layers | |
| CN204209941U (en) | A kind of three-layer co-extruded breathable membrane production device | |
| CN202399500U (en) | Polyolefin double-wall corrugated pipe complete production equipment | |
| CN202623248U (en) | Screw for double-screw plastic extrusion machine | |
| CN202911120U (en) | Sheet mould head | |
| WO2021217564A1 (en) | Multicolor wood-plastic profile, manufacturing method therefor and wood-plastic board | |
| CN1966244A (en) | PVDC composite film for seven-layer coextrusion processing and its method | |
| CN201889896U (en) | Hybrid plastic pipe extrusion machine head | |
| CN203496261U (en) | Special screw for extrusion molding with high sealant volume | |
| CN202491414U (en) | Cone double screw | |
| CN106182678A (en) | A kind of extruder die head increasing tube surfaces fineness | |
| CN206317379U (en) | A kind of bridge insert for plastic irregular profile mould | |
| CN214239444U (en) | Mold for pencil molding | |
| CN217319237U (en) | Special seven-section six-head full-alloy foaming screw | |
| CN1669772A (en) | Apparatus for machining coated plastic door and window section bar | |
| CN217752679U (en) | Plastic pipe cladding brightening die | |
| CN201745157U (en) | Forcedly blanking transition body applied in double-step unit | |
| CN201385410Y (en) | Material rod for coating machine | |
| CN216329959U (en) | Parallel machine head for double extruders | |
| CN214324129U (en) | Novel screw rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU SHUANGLIN PLASTICE MACHINERY CO., LTD. Free format text: FORMER OWNER: SHI JINGDONG Effective date: 20090717 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090717 Address after: Hangzhou City, Zhejiang Province, Yuhang Economic Development Zone Tian He Lu No. 111, zip code: 311100 Patentee after: Zhejiang Shuanglin Plastic Machinery Co., Ltd. Address before: Hangzhou City, Zhejiang Province, Linping Yuhang Economic Development Zone No. 111 Tian He Lu Hangzhou Shuanglin Machinery Co. Ltd, zip code: 311100 Patentee before: Shi Jingdong |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20120504 |