CN101531055A - Exhaust structure of conical twin-screw extruder special for polyolefine - Google Patents
Exhaust structure of conical twin-screw extruder special for polyolefine Download PDFInfo
- Publication number
- CN101531055A CN101531055A CN200910031148A CN200910031148A CN101531055A CN 101531055 A CN101531055 A CN 101531055A CN 200910031148 A CN200910031148 A CN 200910031148A CN 200910031148 A CN200910031148 A CN 200910031148A CN 101531055 A CN101531055 A CN 101531055A
- Authority
- CN
- China
- Prior art keywords
- conical
- polyolefine
- screw
- exhaust
- machine barrel
- 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.)
- Pending
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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
- B29C48/56—Screws having grooves or cavities other than the thread or the channel
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- 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
-
- 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
- B29C48/41—Intermeshing counter-rotating screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an exhaust structure of a conical twin-screw extruder special for polyolefine capable of improving effects of mixing and plastication of a polyolefine material. The exhaust structure comprises a machine barrel; the machine barrel is provided with a pair of conical screws inside and is provided with a feed inlet; each conical screw is provided with three sections of screw flanks, namely a feeding section, a compression section, and a plastication and homogenization section; the position of the feed inlet corresponds to the feeding section on each conical screw; and the screw flanks of the whole compression sections are provided with a plurality of exhaust grooves, and exhaust grooves are also arranged from the compression section to the screw flank of the feeding section below the feed inlet. The exhaust structure has the following advantages that: the conical twin-screw extruder special for the polyolefine with the exhaust structure can effectively increase the pressure in the machine barrel, improves the effects of the mixing and the plastication of the polyolefine material, can be used for professional processing of the polyolefine material, and has high yield and less energy consumption.
Description
Technical field
The invention belongs to the conical double screw extruder field, relate 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.
Summary of the invention
Technical problem to be solved by this invention 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, technical scheme of the present invention 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 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.
Advantage of the present invention is: the conical double screw extruder special for polyolefine that above-mentioned exhaust structure is housed can effectively increase the pressure in the machine barrel, has improved the mixing and plasticizing effect of polyolefine material, can be used for professional processing of polyolefins material, the output height, and it is little to consume energy.
Description of drawings
Fig. 1 is the structural representation of the exhaust structure of conical double screw extruder special for polyolefine of the present invention.
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 invention 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 comprises: machine barrel 1, in machine barrel 1, be provided with a pair of conical screw 2, and 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 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 |
|---|---|---|---|
| CN200910031148A CN101531055A (en) | 2009-04-28 | 2009-04-28 | Exhaust structure of conical twin-screw extruder special for polyolefine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910031148A CN101531055A (en) | 2009-04-28 | 2009-04-28 | Exhaust structure of conical twin-screw extruder special for polyolefine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101531055A true CN101531055A (en) | 2009-09-16 |
Family
ID=41102012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910031148A Pending CN101531055A (en) | 2009-04-28 | 2009-04-28 | Exhaust structure of conical twin-screw extruder special for polyolefine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101531055A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216293A (en) * | 2015-10-27 | 2016-01-06 | 宜兴市光辉包装材料有限公司 | A kind of blow molding packaging film double screw extruder |
| CN105643834A (en) * | 2014-12-03 | 2016-06-08 | 任宝永 | Tank-free, pressure-free and additive-free environment-friendly reclaimed rubber production system and production method |
| CN110948825A (en) * | 2019-11-11 | 2020-04-03 | 重庆赛亿高分子材料有限公司 | Kneading and extruding device |
-
2009
- 2009-04-28 CN CN200910031148A patent/CN101531055A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643834A (en) * | 2014-12-03 | 2016-06-08 | 任宝永 | Tank-free, pressure-free and additive-free environment-friendly reclaimed rubber production system and production method |
| CN105216293A (en) * | 2015-10-27 | 2016-01-06 | 宜兴市光辉包装材料有限公司 | A kind of blow molding packaging film double screw extruder |
| CN110948825A (en) * | 2019-11-11 | 2020-04-03 | 重庆赛亿高分子材料有限公司 | Kneading and extruding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090916 |