CN201520053U - Combined screw for twin-screw extruder - Google Patents
Combined screw for twin-screw extruder Download PDFInfo
- Publication number
- CN201520053U CN201520053U CN2009202064500U CN200920206450U CN201520053U CN 201520053 U CN201520053 U CN 201520053U CN 2009202064500 U CN2009202064500 U CN 2009202064500U CN 200920206450 U CN200920206450 U CN 200920206450U CN 201520053 U CN201520053 U CN 201520053U
- Authority
- CN
- China
- Prior art keywords
- screwing element
- length
- kneading member
- angle
- 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
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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
- B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
-
- 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
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/54—Screws with additional forward-feeding elements
-
- 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
- B29C48/55—Screws having reverse-feeding elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses a combined screw for twin-screw extruder, which comprises a transportation part, a mixed smelting compression part and an extruding part in turn from the upstream side, wherein the transportation part is provided with a material feeding position corresponding to a material feed port of an external extruder, the extruding part is provided with an exhaust position corresponding to an exhaust port of the external extruder, a plurality of screw thread elements and kneading elements which are arranged according to certain order are arranged according to the material outlet direction on a certain distance between the material feeding position and the exhaust position, the combined screw increases the kneading elements of various types, prominently improves the mixed melting effect, guarantees the product performance stability, improves the compression ratio of the compression part through increasing a part of screw thread elements with long guiding distance and short helical pitch, and is beneficial for extracting negative pressure of volatile matters, and the screw combination is applied on existing machines, and can improve the production yield, lower the production cost, and obtain excellent economic benefits.
Description
Technical field
The utility model relates to a kind of combined threaded rod that is used for double screw extruder.
Background technology
In the prior art, the twin-screw plastic extruder holds an important position in Polymer Processing, and its application is increasingly extensive, and screw rod is the important component part of extruder, and its design is directly connected to the quality and the efficient of converted products.
As shown in Figure 1, common screw rod is generally the common configuration of manufacturer, and its combination can be satisfied general requirement of producing, and is difficult to satisfy to special material modified processing request; In addition, the double screw extruder screw rod of standard configuration is because shearing force is not enough, and melting effect is poor, the properties of product instability of being produced; The double screw extruder screw rod of standard configuration is because screwing element and kneading member combination are unreasonable, and output is lower simultaneously, and general class's output is at 3～3.5 tons.
The utility model content
In view of this, the utility model provides a kind of combined threaded rod that is used for double screw extruder, and by existing common screw combinations is improved, the shearing force that has solved existing screw rod existence is not enough, processing effect is poor, the problem of inefficiency.
The purpose of this utility model provides a kind of combined threaded rod that is used for double screw extruder, swim side from it and comprise delivery section in order, mixing compression unit and extrude portion, described delivery section is provided with and the corresponding material level that adds of outside extruder charge door, the described portion of extruding is provided with and the corresponding exhaust of outside extruder exhaust outlet position, the described material level that adds sets gradually threaded element I according to the discharging direction to the segment distance between the exhaust position, screwing element II, screwing element III, screwing element IV, kneading member I, screwing element V, kneading member II, kneading member III, screwing element VI, kneading member IV, kneading member V, screwing element VII, screwing element VIII, kneading member VI, kneading member VII, screwing element IX, kneading member VIII, kneading member IX, screwing element X, kneading member X, screwing element XI and screwing element XII.
Further, the parameter of described each screwing element is:
The length of screwing element I is 96mm, the length of screwing element II is 96mm, and the length of screwing element III is 96mm, and the length of screwing element IV is 72mm, the length of screwing element V is 56mm, the length of screwing element VI is 56mm, and the length of screwing element VII is 72mm, and the length of screwing element VIII is 56mm, the length of screwing element IX is 56mm, screwing element X length is 56mm, and the length of screwing element XI is 28mm, and the length of screwing element XII is 96mm;
Further, the parameter of described each kneading member is:
The angle of thread of kneading member I is 45 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member II is 45 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member III is 90 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member IV is 45 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member V is 60 °, and the screw thread number of plies is 4, and length is 56mm; The angle of thread of kneading member VI is 45 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member VII is 60 °, and the screw thread number of plies is 4, and length is 56mm; The angle of thread of kneading member VIII is 45 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member IX is 90 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member X is 90 °, and the screw thread number of plies is 5, and length is 56mm;
Further, to discharging direction, after screwing element XII, also set gradually threaded element XIII, screwing element XIV, screwing element XV, screwing element XVI and screwing element XVII on the described screw rod along the exhaust position, the parameter of described each screwing element is:
The length of screwing element XIII is 96mm, and the length of screwing element XIV is 96mm, and the length of screwing element XV is 96mm, and the length of screwing element XVI is 56mm, and the length of screwing element XVII is 56mm.
The beneficial effects of the utility model are:
1. the utility model has increased the kneading member of multiple model, has obviously improved melting effect, has guaranteed the stable performance of product;
2. by increasing the screwing element of long helical pitch of part and short pitch, improve the compression ratio of compression section, the negative pressure that helps volatile matter is extracted;
3. this kind screw combinations is applied on the existing machine, can improve output, reduces production costs, and obtains good economic benefit.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can realize and obtain by following specification and claims.
Description of drawings
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 is the existing structural representation that is used for the combined threaded rod of double screw extruder;
Fig. 2 is a combined threaded rod structural representation of the present utility model.
The specific embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.Should be appreciated that preferred embodiment only for the utility model is described, rather than in order to limit protection domain of the present utility model.
As shown in Figure 2, the combined threaded rod that is used for double screw extruder, swim side from it and comprise delivery section 1 in order, mixing compression unit 2 and extrude portion 3,1 is provided with and the corresponding material level 4 that adds of outside extruder charge door on the delivery section, extruding portion 3 is provided with and the corresponding exhaust of outside extruder exhaust outlet position 5, add material level 4 to the segment distance between the exhaust position 5, set gradually threaded element I 11 according to the discharging direction, screwing element II 12, screwing element III 13, screwing element IV 14, kneading member I 21, screwing element V 15, kneading member II 22, kneading member III 23, screwing element VI 16, kneading member IV 24, kneading member V 25, screwing element VII 17, screwing element VIII 18, kneading member VI 26, kneading member VII 27, screwing element IX 19, kneading member VIII 28, kneading member IX 29, screwing element X 100, kneading member X 200, screwing element XI 101 and screwing element XII 102.
Wherein, the parameter of each screwing element is:
The length of screwing element I 11 is 96mm, the length of screwing element II 12 is 96mm, the length of screwing element III 13 is 96mm, the length of screwing element IV 14 is 72mm, the length of screwing element V 15 is 56mm, the length of screwing element VI 16 is 56mm, the length of screwing element VII 17 is 72mm, the length of screwing element VIII 18 is 56mm, the length of screwing element IX 19 is 56mm, screwing element X100 length is 56mm, and the length of screwing element XI 101 is 28mm, and the length of screwing element XII 102 is 96mm.
The parameter of each kneading member is:
The angle of thread of kneading member I 21 is 45 °, and number of starts is 5, and length is 56mm; The angle of thread of kneading member II22 is 45 °, and number of starts is 5, and length is 56mm; The angle of thread of kneading member III 23 is 90 °, and number of starts is 5, and length is 56mm; The angle of thread of kneading member IV 24 is 45 °, and number of starts is 5, and length is 56mm; The angle of thread of kneading member V 25 is 60 °, and number of starts is 4, and length is 56mm; The angle of thread of kneading member VI 26 is 45 °, and number of starts is 5, and length is 56mm; The angle of thread of kneading member VII 27 is 60 °, and number of starts is 4, and length is 56mm; The angle of thread of kneading member VIII 28 is 45 °, and number of starts is 5, and length is 56mm; The angle of thread of kneading member IX 29 is 90 °, and number of starts is 5, and length is 56mm; The angle of thread of kneading member X 200 is 90 °, and number of starts is 5, and length is 56mm.
Along the exhaust position to discharging direction, after screwing element XII 102, also set gradually threaded element XIII 103, screwing element XIV 104, screwing element XV 105, screwing element XVI 106 and screwing element XVII 107 on the screw rod, wherein, the parameter of each screwing element is:
The length of screwing element XIII 103 is 96mm, and the length of screwing element XIV 104 is 96mm, and the length of screwing element XV 105 is 96mm, and the length of screwing element XVI 106 is 56mm, and the length of screwing element XVII 107 is 56mm.
Adopt combined threaded rod of the present utility model, be applied on the existing machine, obviously improved melting effect, guaranteed the stable performance of product, comparatively stably improved the compression ratio of compression section, the negative pressure that helps volatile matter is extracted, can improve output, reduce production costs, obtain good economic benefit.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. the combined threaded rod that is used for double screw extruder, swim side from it and comprise delivery section in order, mixing compression unit and extrude portion, described delivery section is provided with and the corresponding material level that adds of outside extruder charge door, the described portion of extruding is provided with and the corresponding exhaust of outside extruder exhaust outlet position, it is characterized in that: the described material level that adds sets gradually threaded element I according to the discharging direction to the segment distance between the exhaust position, screwing element II, screwing element III, screwing element IV, kneading member I, screwing element V, kneading member II, kneading member III, screwing element VI, kneading member IV, kneading member V, screwing element VII, screwing element VIII, kneading member VI, kneading member VII, screwing element IX, kneading member VIII, kneading member IX, screwing element X, kneading member X, screwing element XI and screwing element XII.
2. the combined threaded rod that is used for double screw extruder as claimed in claim 1 is characterized in that: the parameter of described each screwing element is:
The length of screwing element I is 96mm, the length of screwing element II is 96mm, and the length of screwing element III is 96mm, and the length of screwing element IV is 72mm, the length of screwing element V is 56mm, the length of screwing element VI is 56mm, and the length of screwing element VII is 72mm, and the length of screwing element VIII is 56mm, the length of screwing element IX is 56mm, screwing element X length is 56mm, and the length of screwing element XI is 28mm, and the length of screwing element XII is 96mm.
3. the combined threaded rod that is used for double screw extruder as claimed in claim 1 or 2 is characterized in that: the parameter of described each kneading member is:
The angle of thread of kneading member I is 45 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member II is 45 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member III is 90 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member IV is 45 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member V is 60 °, and the screw thread number of plies is 4, and length is 56mm; The angle of thread of kneading member VI is 45 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member VII is 60 °, and the screw thread number of plies is 4, and length is 56mm; The angle of thread of kneading member VIII is 45 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member IX is 90 °, and the screw thread number of plies is 5, and length is 56mm; The angle of thread of kneading member X is 90 °, and the screw thread number of plies is 5, and length is 56mm.
4. the combined threaded rod that is used for double screw extruder as claimed in claim 3, it is characterized in that: along the exhaust position to discharging direction, after screwing element XII, also set gradually threaded element XIII, screwing element XIV, screwing element XV, screwing element XVI and screwing element XVII on the described screw rod, the parameter of described each screwing element is:
The length of screwing element XIII is 96mm, and the length of screwing element XIV is 96mm, and the length of screwing element XV is 96mm, and the length of screwing element XVI is 56mm, and the length of screwing element XVII is 56mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202064500U CN201520053U (en) | 2009-09-25 | 2009-09-25 | Combined screw for twin-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202064500U CN201520053U (en) | 2009-09-25 | 2009-09-25 | Combined screw for twin-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201520053U true CN201520053U (en) | 2010-07-07 |
Family
ID=42506233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202064500U Expired - Fee Related CN201520053U (en) | 2009-09-25 | 2009-09-25 | Combined screw for twin-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201520053U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102058011A (en) * | 2010-12-03 | 2011-05-18 | 兰州理工大学 | Screw structure of double-screw extruder |
| CN106700253A (en) * | 2016-12-14 | 2017-05-24 | 广东圆融新材料有限公司 | Low shrink and low density PP material and preparation method thereof |
| CN113895016A (en) * | 2021-09-07 | 2022-01-07 | 广州华新科智造技术有限公司 | Double-screw combination and processing technology for melt modification processing of polyvinyl alcohol material |
-
2009
- 2009-09-25 CN CN2009202064500U patent/CN201520053U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102058011A (en) * | 2010-12-03 | 2011-05-18 | 兰州理工大学 | Screw structure of double-screw extruder |
| CN102058011B (en) * | 2010-12-03 | 2013-11-13 | 兰州理工大学 | Screw structure of double-screw extruder |
| CN106700253A (en) * | 2016-12-14 | 2017-05-24 | 广东圆融新材料有限公司 | Low shrink and low density PP material and preparation method thereof |
| CN106700253B (en) * | 2016-12-14 | 2019-03-01 | 广东圆融新材料有限公司 | A kind of low-contraction low-density PP material and preparation method thereof |
| CN113895016A (en) * | 2021-09-07 | 2022-01-07 | 广州华新科智造技术有限公司 | Double-screw combination and processing technology for melt modification processing of polyvinyl alcohol material |
| CN113895016B (en) * | 2021-09-07 | 2024-03-15 | 广州华新科智造技术有限公司 | Double-screw combination and processing technology for melting modification processing of polyvinyl alcohol material |
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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: 20100707 Termination date: 20180925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |