CN201446668U - Exhaust structure of polyolefin special-purpose conical double screw extrusion machine - Google Patents
Exhaust structure of polyolefin special-purpose conical double screw extrusion machine Download PDFInfo
- Publication number
- CN201446668U CN201446668U CN2009200398795U CN200920039879U CN201446668U CN 201446668 U CN201446668 U CN 201446668U CN 2009200398795 U CN2009200398795 U CN 2009200398795U CN 200920039879 U CN200920039879 U CN 200920039879U CN 201446668 U CN201446668 U CN 201446668U
- Authority
- CN
- China
- Prior art keywords
- segment
- conical
- exhaust
- double screw
- exhaust structure
- 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
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
- B29C48/56—Screws having grooves or cavities other than the thread or the channel
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
Abstract
The utility model discloses an exhaust structure of a polyolefin special-purpose conical double screw extrusion machine, which can improve the mixing and plasticizing effect of polyolefin materials, and comprises a cylinder, wherein a pair of conical threaded rods is arranged in the cylinder, a feed inlet is arranged on the cylinder, each conical threaded rod is provided with an inlet segment, a compression segment and a plasticizing homogenization segment, namely three segments of screw edges, the position of the feed inlet corresponds to the feed segment on the conical threaded rod, the screw edge of the whole compression segment is provided with a plurality of exhaust grooves, an exhaust groove is further arranged on the screw edge which is from the compression segment to the feed segment on the lower portion of the feed inlet. The exhaust structure of the polyolefin special-purpose conical double screw extrusion machine can effectively increase pressure in the cylinder, improves the mixing and plasticizing effect of polyolefin materials, can be used for professionally processing polyolefin materials, and has high yield and small energy consumption.
Description
Technical field
The utility model belongs to the conical double screw extruder field, relates in particular to a kind of exhaust structure of conical double screw extruder of the brand-new professional processing of polyolefins material of energy.
Background technology
The exhaust structure of traditional conical double screw extruder comprises: machine barrel, in machine barrel, be provided with a pair of conical screw, on every conical screw, all be provided with feed zone, shunting section, compression section, choke section, exhaust section, plasticizing homogenizing zone totally six sections spiral shell ribs, machine barrel is provided with charging aperture and exhaust outlet, and the position correspondence of charging aperture the feed zone on the conical screw, and the position of exhaust outlet faces the exhaust section on the conical screw.The conical double screw extruder of this structure can only be to the thermal sensitivity plastics---and plastify well with mixing as polyvinyl chloride (being called for short PVC) material, therefore be used to specialty processing thermal sensitivity plastics.But can not be used for the processing of polyolefins material, can not plastify well with mixing polyolefine material.
The utility model content
Technical problem to be solved in the utility model is: the exhaust structure that a kind of conical double screw extruder special for polyolefine of the mixing and plasticizing effect that can improve polyolefine material is provided.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: the exhaust structure of conical double screw extruder special for polyolefine, comprise: machine barrel, in machine barrel, be provided with a pair of conical screw, machine barrel is provided with charging aperture, on described each conical screw, all be provided with feed zone, compression section and plasticizing homogenizing zone be totally three sections spiral shell ribs, the position correspondence of charging aperture the feed zone on the conical screw, and the spiral shell rib of whole compression section is provided with some exhaust grooves, also is provided with exhaust groove on the spiral shell rib of that section feeding section from the compression section to the charging aperture below.
The utility model has the advantages that: the conical double screw extruder special for polyolefine that above-mentioned exhaust structure is housed can effectively increase the interior pressure of machine barrel, improved the mixing and plasticizing effect of polyolefine material, can be used for professional processing of polyolefins material, the output height, it is little to consume energy.
Description of drawings
Fig. 1 is the structural representation of the exhaust structure of the utility model conical double screw extruder special for polyolefine.
Fig. 2 is the structural representation of conical screw among Fig. 1.
Fig. 3 is an A-A direction structure schematic diagram among Fig. 2.
Fig. 4 is a B-B direction structure schematic diagram among Fig. 2.
Among the figure: 1, machine barrel, 11, charging aperture, 2, conical screw, 21, feed zone, 211, exhaust groove, 22, the compression section, 221, exhaust groove, 23, the plasticizing homogenizing zone, 3, distributor box, 31, final drive shaft, 4, angular wheel.
The specific embodiment
Describe particular content of the present utility model in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the exhaust structure of conical double screw extruder special for polyolefine, comprise: machine barrel 1, in machine barrel 1, be provided with a pair of conical screw 2, machine barrel 1 is provided with charging aperture 11. as shown in Figure 2, on described each conical screw 2, all be provided with feed zone 21, compression section 22 and plasticizing homogenizing zone 23 be totally three sections spiral shell ribs, the position correspondence of charging aperture 11 feed zone 21 on the conical screw 2, and on the spiral shell rib of whole compression section 22, evenly be provided with some exhaust grooves 221---as shown in Figure 3, as shown in Figure 4, also be provided with exhaust groove 211. from compression section 22 on the spiral shell rib of that section feeding section 21 to charging aperture 11 belows
As shown in Figure 1, when the conical double screw extruder special for polyolefine use of above-mentioned exhaust structure is housed, driving the final drive shaft 31 that is arranged in the distributor box 3 by motor by gear-box rotates, final drive shaft 31 drives from power transmission shaft and another root conical screw 2 by a pair of angular wheel 4 and rotates, thereby the polyolefine material that is entered by charging aperture 11 is processed.The gas that produces in process can turn back to charging aperture 11 and go out to discharge from exhaust groove 221 and exhaust groove 211, the conical double screw extruder of this structure effectively increases the pressure in the machine barrel 1, increased the effective length of conical screw, can make the polyolefine material obtain mixing well and plasticizing material compression, mixing and preplasticizing.
Claims (1)
1. the exhaust structure of conical double screw extruder special for polyolefine, comprise: machine barrel (1), in machine barrel (1), be provided with a pair of conical screw (2), machine barrel (1) is provided with charging aperture (11), it is characterized in that: on described each conical screw (2), all be provided with feed zone (21), compression section (22) and plasticizing homogenizing zone (23) be totally three sections spiral shell ribs, the position correspondence of charging aperture (11) the feed zone (21) on the conical screw (2), and the spiral shell rib of whole compression section (22) is provided with some exhaust grooves (221), also is provided with exhaust groove (211) on the spiral shell rib of that section feeding section (21) from compression section (22) to charging aperture (11) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200398795U CN201446668U (en) | 2009-04-28 | 2009-04-28 | Exhaust structure of polyolefin special-purpose conical double screw extrusion machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200398795U CN201446668U (en) | 2009-04-28 | 2009-04-28 | Exhaust structure of polyolefin special-purpose conical double screw extrusion machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201446668U true CN201446668U (en) | 2010-05-05 |
Family
ID=42551381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200398795U Expired - Fee Related CN201446668U (en) | 2009-04-28 | 2009-04-28 | Exhaust structure of polyolefin special-purpose conical double screw extrusion machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201446668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729451A (en) * | 2012-06-28 | 2012-10-17 | 东华大学 | Variable-diameter screw melt extruder and extrusion method thereof |
-
2009
- 2009-04-28 CN CN2009200398795U patent/CN201446668U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729451A (en) * | 2012-06-28 | 2012-10-17 | 东华大学 | Variable-diameter screw melt extruder and extrusion method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202540687U (en) | Special tapered double-screw extruder for wood-plastic composite material | |
| CN102990902B (en) | Extruding machine | |
| CN201970477U (en) | Conical dual-screw biomass fuel extrusion forming machine | |
| CN201183312Y (en) | Hypercone type double-screw plastic extrusion machine | |
| CN201446668U (en) | Exhaust structure of polyolefin special-purpose conical double screw extrusion machine | |
| CN201446682U (en) | Squeezing device of polyolefin special-purpose conical double screw extrusion machine | |
| CN101531055A (en) | Exhaust structure of conical twin-screw extruder special for polyolefine | |
| CN101531054B (en) | Extrusion device of conical twin-screw extruder special for polyolefine | |
| CN201931561U (en) | Granulating equipment with dual screw rods having ultra-high length-diameter ratio | |
| CN201158108Y (en) | Ultra-conical double-screw pelletizer | |
| CN201446669U (en) | Installation structure of transmission shaft in polyolefin special-purpose conical double screw extrusion machine | |
| CN202180604U (en) | Combined screw | |
| CN202016189U (en) | Rubber and plastic damping material extruder | |
| CN201456261U (en) | Equidirectional conical double-screw PE pelletizer | |
| CN101875231A (en) | Installation structure of transmission shafts in conical double screw extruder special for polyolefine | |
| CN105313287A (en) | Single-screw extruder | |
| CN207772036U (en) | A kind of spiral stalk pelleter | |
| CN203317725U (en) | Special precision extrusion device for polyvinylidene fluoride (PVDF) | |
| CN202895659U (en) | Different-diameter screw cold feed exhaust extruder | |
| CN203527836U (en) | Extruder with bent runner nose | |
| CN201279909Y (en) | Plastic extrusion apparatus with adjustable feed quantity | |
| CN206123984U (en) | Natural rubber spiral dehydration granulator | |
| CN202805457U (en) | Novel plastic pelleting machine set | |
| CN201446683U (en) | Threaded rod of conical double screw extrusion machine special used for producing polyolefin | |
| CN210705483U (en) | Single-screw three-spiral-structure extrusion device for plastic recycling and granulating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20140428 |