CN202656456U - Double-spiral groove Maillefer screw - Google Patents
Double-spiral groove Maillefer screw Download PDFInfo
- Publication number
- CN202656456U CN202656456U CN2012203126116U CN201220312611U CN202656456U CN 202656456 U CN202656456 U CN 202656456U CN 2012203126116 U CN2012203126116 U CN 2012203126116U CN 201220312611 U CN201220312611 U CN 201220312611U CN 202656456 U CN202656456 U CN 202656456U
- Authority
- CN
- China
- Prior art keywords
- screw
- double
- thread
- section
- spiral groove
- 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
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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
- B29C48/25—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
- B29C48/64—Screws with two or more threads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a double-spiral groove Maillefer screw which can produce a polyethylene (PE) raw material, a polypropylene (PP) raw material and a polyvinyl chloride (PVC) raw material. A screw working part is sequentially provided with a screw feeding section, a screw compression section and a screw metering section; and the screw compression section is sequentially manufactured into a single-thread double-thread transition section, a double-thread pair spiral groove front section and a double-thread pair spiral groove rear end at a double-thread initial point of the screw. The double-spiral groove Maillefer screw has the advantages that according to the screw, the PE, PP and PVC raw materials can be simultaneously processed under most conditions, and the screw can be replaced.
Description
Technical field
The utility model belongs to a kind of screw rod, relates in particular to a kind ofly can produce two screw channel separating screw rods that P E and P P can also produce P V C.
Background technology
For a long time because the relation of PEF P E, polypropylene P P and polyvinyl chloride P V C property of raw material, as seen the compression section length goods that raw material is done of used corresponding screw rod or the too strong flexible deficiency of rigidity or the flexibility rigidity deficiency of having a surplus also daily, this is because the flow rate difference of raw material causes, although there is part to achieve the goal by regulating processing temperature, but also have because the physical compression of the raw material large and poor effect than difference is utilized at present different material (namely using compound) to change product properties and very generally is used.Different material goods and need to change not threaded thing and occur.
Well-known above-mentioned traditional best solution is to adopt the screw rod of dissimilar or different compression ratios.Therefore often can see production different material goods and need to change not threaded needs.
Summary of the invention
The utility model provides a kind of two screw channel separating screw rods that can process simultaneously PEF P E, polypropylene P P and polyvinyl chloride P V C raw material for above deficiency.
The technical scheme that the utility model adopts is:
A kind of pair of screw channel separating screw rod, the screw rod working portion sets gradually into screw rod feeding section, screw compression section, screw metering section, makes successively the two screw thread changeover portions of single thread, two screw thread pair screw channel leading portion, two screw thread pair screw channels rear end in the two screw thread starting point places of screw rod screw compression section.
Described screw metering section is provided with dismantled and assembled screw head.
The dismantled and assembled screw head length of choose reasonable is also quoted the concept of second-compressed ratio at first by regulating footpath at the bottom of the removable screw head, optimize the structure of the two screw thread changeover portions of single thread, two screw thread pair screw channel leading portion, two screw thread pair screw channel back segments.
The beneficial effects of the utility model:
Under most of condition, can process simultaneously the screw rod of PEF P E, polypropylene P P and polyvinyl chloride P V C raw material, substantially solve the problem of changing screw rod.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure:
1. screw rod working portion, 2. screw rod feeding section, 3. screw compression section, 4. screw compression section, 5. screw metering section, 6. two screw thread changeover portions of single thread, 7, two screw thread pair screw channel leading portion, 8, two screw thread pair screw channel rear end, 9, dismantled and assembled screw head, 10, two screw thread starting point.
The specific embodiment
As shown in drawings, a kind of pair of screw channel separating screw rod, screw rod working portion 1 sets gradually into screw rod feeding section 2, screw compression section, screw metering section 5, makes successively the two screw thread changeover portions 6 of single thread, two screw thread pair screw channel leading portion 7, two screw thread pair screw channels rear end 8 in the two screw thread starting point 10 place's screw compression sections 4 of screw rod.
Described screw metering section 5 is provided with dismantled and assembled screw head 9.
Dismantled and assembled screw head 9 length of choose reasonable are also quoted the concept of second-compressed ratio at first by regulating 9 ends of removable screw head footpaths, optimize the structure of the two screw thread changeover portions 6 of single thread, two screw thread pair screw channel leading portion 7, two screw thread pair screw channel back segments 8.
Claims (2)
1. two screw channel separating screw rod, it is characterized in that: the screw rod working portion sets gradually into screw rod feeding section, screw compression section, screw metering section, makes successively the two screw thread changeover portions of single thread, two screw thread pair screw channel leading portion, two screw thread pair screw channels rear end in the two screw thread starting point places of screw rod screw compression section.
2. a kind of pair of screw channel separating screw rod according to claim 1, it is characterized in that: screw metering section is provided with dismantled and assembled screw head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203126116U CN202656456U (en) | 2012-07-02 | 2012-07-02 | Double-spiral groove Maillefer screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203126116U CN202656456U (en) | 2012-07-02 | 2012-07-02 | Double-spiral groove Maillefer screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202656456U true CN202656456U (en) | 2013-01-09 |
Family
ID=47451387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203126116U Expired - Fee Related CN202656456U (en) | 2012-07-02 | 2012-07-02 | Double-spiral groove Maillefer screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202656456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507237A (en) * | 2013-09-27 | 2014-01-15 | 江苏维达机械有限公司 | Machine barrel screw for injection molding equipment |
| CN109849307A (en) * | 2019-04-11 | 2019-06-07 | 宁波安力电子材料有限公司 | A kind of high viscosity molded composites single screw extrusion machine |
-
2012
- 2012-07-02 CN CN2012203126116U patent/CN202656456U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507237A (en) * | 2013-09-27 | 2014-01-15 | 江苏维达机械有限公司 | Machine barrel screw for injection molding equipment |
| CN109849307A (en) * | 2019-04-11 | 2019-06-07 | 宁波安力电子材料有限公司 | A kind of high viscosity molded composites single screw extrusion machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20140702 |
|
| EXPY | Termination of patent right or utility model |