CN103029285B - Extruder - Google Patents
Extruder Download PDFInfo
- Publication number
- CN103029285B CN103029285B CN201210596920.5A CN201210596920A CN103029285B CN 103029285 B CN103029285 B CN 103029285B CN 201210596920 A CN201210596920 A CN 201210596920A CN 103029285 B CN103029285 B CN 103029285B
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- CN
- China
- Prior art keywords
- machine barrel
- extruder
- bleeding point
- zone
- depressed part
- 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.)
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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
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
-
- 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 invention discloses an extruder which comprises an extruder barrel (1), a threaded rod (2) and a transmission device (7), wherein the transmission device (7) is in linkage with an output shaft of a motor (6); a material inlet and a material outlet are formed in the extruder barrel (1); and the threaded rod (2) is rotationally arranged in an inner cavity of the extruder barrel (1) and divided into a material inlet section (A), a fusion section (B), a plastification section (C) and an extrusion section (D). The extruder is characterized in that an extraction opening (11) is formed vertically in the extruder barrel (1); the extraction opening (11) is a through hole which has a small diameter at the lower part and a large diameter at the upper part; and a sunk part (31) capable of enlarging the inner cavity of the extruder barrel is arranged on an internal wall on the left side of the extraction opening (11) of the extruder barrel (1). According to the extruder, the extraction opening is rational in design; the problem of glue outflow due to vacuumizing in processes of extruding dehydration and expansion drying is solved effectively; and the extruder is very convenient to operate and use; the quality and grade of a product is improved and raised; and the production efficiency and the profit are improved and increased largely.
Description
Technical field
The present invention relates to processing of high molecular material field of mechanical technique, especially a kind of extruder for rubber extruding.
Background technology
Extruder extrudes rear for carrying out fully mixing to multiple particulate material and exports, and is mainly used in plastics or rubber manufacture field.In rubber manufacture process, especially extrusion dehydration, expansion drying operation must be carried out in last handling process, need to draw sky in extrusion, extract moisture and bubble out, if these moisture and bubble are not discharged, allow it stay in rubber and can produce more serious harmful effect to rubber end product, in for this reason current Rubber Extruder, all can exhaust apparatus be set.But the pressure of extruder in mixing plasticizing process in wearing layer is comparatively large, exhaust apparatus often there will be and emits glue phenomenon while exhaust, not only causes the waste of raw material, also affects the quality of product.Especially large-scale extruder, domestic at present do not have one can intactly solve the problem emitting glue, rubber mix with plastics the equipment doing heat-insulation foam material be all needs from external import, price comparison is expensive.For this reason, the existing patent No. is 201120264989.9 and is called that the Chinese utility model patent of " a kind of exhaust apparatus of Rubber Extruder " discloses a kind of structure, its structure comprise hollow wearing layer and fixedly sleeved with wearing layer outer surface together with stay pipe, the sidewall of wearing layer is provided with the aspirating hole simultaneously running through stay pipe, the madial wall of described wearing layer is provided with pit, and described aspirating hole communicates with pit.This extruder is provided with the pit of crescent moon shape due to the madial wall of wearing layer, and the location bias of aspirating hole, at the edge of pit low-pressure area, makes exhaust apparatus both fully can discharge air like this, can reduce again the generation of emitting glue phenomenon.But the aspirating hole diameter of this structure is less, the location bias of aspirating hole, at the edge of pit low-pressure area, is unfavorable for the discharge of gas, and to emitting glue phenomenon to solve thoroughly.Therefore need structurally to improve, to avoid the generation of emitting glue phenomenon of extruder, ensure constant product quality.
Summary of the invention
Technical problem to be solved by this invention provides a kind of rational in infrastructure, extruder easily of bleeding, by being improved the pit of aspirating hole and wearing layer, efficiently solve and emit glue phenomenon when bleeding, drastically increase product quality and production efficiency.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of extruder, comprise machine barrel, screw rod and transmission device, the output shaft of described transmission device and motor is connected, described machine barrel is provided with charging aperture and discharging opening, described screw rod can be arranged in the inner chamber of machine barrel rotationally, and is divided into feed zone, melt zone, fluxing zone and extruding zone successively; It is characterized in that: described machine barrel is vertically provided with bleeding point, described bleeding point is the large through hole in aperture, little top, aperture, bottom, and the inner left wall at bleeding point place being positioned at described machine barrel is arranged can the depressed part of enlarger tube inner chamber.
As improvement, the radial section of described depressed part is oblique cambered surface, and the oblique cambered surface of described depressed part is from dark gradually shallow involute structure from described bleeding point.
As improvement, the inwall of described machine barrel is provided with wearing layer, and described depressed area is on the inner side of described wearing layer, and the part of the small-bore, bottom of described bleeding point is arranged on described wearing layer and corresponds to depressed part edge.
As improvement, described screw rod is the structure that feed zone one end diameter is large, fluxing zone one end diameter is little.
Improve, described bleeding point is positioned on fluxing zone again.
Improve, described screw rod is provided with damping section being positioned at the position on fluxing zone, and described depressed part is arranged in the machine letter in damping section front again.
Further improvement, the top described machine barrel corresponding to described bleeding point is provided with air extractor.
Finally, the vertical central axis of described bleeding point is positioned on the side of longitudinal center's axis of described machine barrel.
Compared with prior art, the invention has the advantages that: bleeding point is designed to the through hole that aperture, little top, aperture, bottom is large, its lower opening footpath, middle and lower part is arranged on wearing layer, gas can be extracted out from bleeding point, while gas is extracted out, avoid rubber like this to emerge from bleeding point, solve produce owing to drawing sky in extrusion dehydration, expansion drying operation emit glue phenomenon, ensure that the quality of product and carrying out smoothly of production.The present invention is rational in infrastructure, it is very easy to use to operate, and not only solves and emits glue phenomenon, also a saving cost, improve product quality and class, substantially increase production efficiency and profit simultaneously.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of the section of bleeding of extruder of the present invention;
Fig. 2 is the sectional view of Fig. 1 along A-A line;
Fig. 3 is the overall structure schematic diagram of extruder of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in the figure, a kind of extruder, comprise machine barrel 1, screw rod 2 and transmission device 7, transmission device 7 is connected with the output shaft of motor 6, rotate with drive screw 2, described machine barrel 1 is provided with charging aperture and discharging opening, and described screw rod 2 can be arranged in the inner chamber of machine barrel 1 rotationally, and is divided into feed zone A, melt zone B, fluxing zone C and extruding zone D successively; Described machine barrel 1 is vertically provided with bleeding point 11, and described bleeding point 11 is the large through hole in aperture, little top, aperture, bottom, and the vertical central axis 8 of described bleeding point 11 is positioned on the side of longitudinal center's axis 9 of described machine barrel 1; The inwall of described machine barrel 1 is provided with wearing layer 3, the inwall of wearing layer 3 is provided with the depressed part 31 that radial section is oblique cambered surface; The part of the small-bore, bottom 111 of described bleeding point 11 is arranged on described wearing layer 3 and corresponds to depressed part 31 edge,
The oblique cambered surface of described depressed part 31 is from dark gradually shallow involute structure from described bleeding point 11, described screw rod 2 is large in feed zone A one end diameter, the structure that fluxing zone C one end diameter is little, described screw rod 2 is provided with damping section 21 being positioned at the position on fluxing zone C, described depressed part 31 is arranged on the wearing layer 3 in damping section 21 front, described bleeding point 11 is positioned on fluxing zone C, the top described machine barrel 1 corresponding to described bleeding point 11 is provided with air extractor, described air extractor comprises aiutage 4 and the exhaust cap 5 of hollow, described aiutage 4 is coaxial setting with described bleeding point 11, the internal diameter of described aiutage 4 is greater than the diameter of bleeding point 11, the sidewall of described aiutage 4 is provided with aspirating hole 41, so just can connect the equipment such as vavuum pump from aspirating hole 41 and carry out drawing sky, because bleeding point 11 is the large structure in aperture, little top, aperture, bottom, make gas avoid rubber while extraction to emerge from aspirating hole 41, solve extrusion dehydration, what produce owing to drawing sky in expansion drying operation emits glue phenomenon, ensure that the quality of product, improve product percent of pass, increase considerably enterprise profit.
Claims (6)
1. an extruder, comprise machine barrel (1), screw rod (2) and transmission device (7), described transmission device (7) is connected with the output shaft of motor (6), described machine barrel (1) is provided with charging aperture and discharging opening, described screw rod (2) can be arranged in the inner chamber of machine barrel (1) rotationally, and is divided into feed zone (A), melt zone (B), fluxing zone (C) and extruding zone (D) successively; It is characterized in that: described machine barrel (1) is vertically provided with bleeding point (11), described bleeding point (11) is the large through hole in aperture, little top, aperture, bottom, and the inner left wall at bleeding point (11) place being positioned at described machine barrel (1) is arranged can the depressed part (31) of enlarger tube inner chamber; The radial section of described depressed part (31) is oblique cambered surface, and the oblique cambered surface of described depressed part (31) is from dark gradually shallow involute structure from described bleeding point (11); The inwall of described machine barrel (1) is provided with wearing layer (3), described depressed part (31) is positioned on the inner side of described wearing layer (3), and the part of the small-bore, bottom (111) of described bleeding point (11) is arranged at described wearing layer (3) and above corresponds to depressed part (31) edge.
2. extruder according to claim 1, is characterized in that: (A) one end diameter is large in feed zone for described screw rod (2), the structure that fluxing zone (C) one end diameter is little.
3. extruder according to claim 1, is characterized in that: described bleeding point (11) is positioned on fluxing zone (C).
4. extruder according to claim 2, it is characterized in that: described screw rod (2) is provided with damping section (21) being positioned at the position on fluxing zone (C), and described depressed part (31) is arranged on the machine barrel (1) in damping section (21) front.
5. the extruder according to the arbitrary claim of Claims 1-4, is characterized in that: the upper top corresponding to described bleeding point (11) of described machine barrel (1) is provided with air extractor.
6. the extruder according to the arbitrary claim of Claims 1-4, is characterized in that: the vertical central axis (8) of described bleeding point (11) is positioned on the side of longitudinal center's axis (9) of described machine barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210596920.5A CN103029285B (en) | 2012-12-31 | 2012-12-31 | Extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210596920.5A CN103029285B (en) | 2012-12-31 | 2012-12-31 | Extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103029285A CN103029285A (en) | 2013-04-10 |
| CN103029285B true CN103029285B (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210596920.5A Active CN103029285B (en) | 2012-12-31 | 2012-12-31 | Extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103029285B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407146B (en) * | 2013-08-07 | 2015-11-25 | 安徽省新方尊自动化科技有限公司 | A kind of method improving screw sleeve service life |
| CN105599263A (en) * | 2016-03-04 | 2016-05-25 | 浙江竟成特种单丝有限公司 | Special extrusion machine for producing edible conveying special monofilaments |
| CN112476831A (en) * | 2020-11-16 | 2021-03-12 | 史宇辉 | Screw extruder is used in production of fire-retardant master batch |
| CN114393806A (en) * | 2022-03-08 | 2022-04-26 | 公元股份有限公司 | Dehumidification structure of extruder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0588008A1 (en) * | 1992-09-18 | 1994-03-23 | HERMANN BERSTORFF Maschinenbau GmbH | Method and apparatus for high performance degassing and gasifying |
| CN201128223Y (en) * | 2007-11-13 | 2008-10-08 | 内蒙古宏立达橡塑机械有限责任公司 | Exhaust device for rubber extruding machine |
| CN202071321U (en) * | 2011-04-06 | 2011-12-14 | 北京化工大学 | Exhaust type differential speed double screw extruder |
| CN202129974U (en) * | 2011-07-25 | 2012-02-01 | 浙江百纳橡塑设备有限公司 | Exhausting device of rubber extruding machine |
| CN202225415U (en) * | 2011-09-18 | 2012-05-23 | 浙江百纳橡塑设备有限公司 | Single-screw extruder |
| CN102837415A (en) * | 2012-09-22 | 2012-12-26 | 广州华新科实业有限公司 | Exhaust method for blade extruder and exhaust type blade extruder |
| CN203046222U (en) * | 2012-12-31 | 2013-07-10 | 浙江栋斌橡机螺杆有限公司 | Extruder |
-
2012
- 2012-12-31 CN CN201210596920.5A patent/CN103029285B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0588008A1 (en) * | 1992-09-18 | 1994-03-23 | HERMANN BERSTORFF Maschinenbau GmbH | Method and apparatus for high performance degassing and gasifying |
| CN201128223Y (en) * | 2007-11-13 | 2008-10-08 | 内蒙古宏立达橡塑机械有限责任公司 | Exhaust device for rubber extruding machine |
| CN202071321U (en) * | 2011-04-06 | 2011-12-14 | 北京化工大学 | Exhaust type differential speed double screw extruder |
| CN202129974U (en) * | 2011-07-25 | 2012-02-01 | 浙江百纳橡塑设备有限公司 | Exhausting device of rubber extruding machine |
| CN202225415U (en) * | 2011-09-18 | 2012-05-23 | 浙江百纳橡塑设备有限公司 | Single-screw extruder |
| CN102837415A (en) * | 2012-09-22 | 2012-12-26 | 广州华新科实业有限公司 | Exhaust method for blade extruder and exhaust type blade extruder |
| CN203046222U (en) * | 2012-12-31 | 2013-07-10 | 浙江栋斌橡机螺杆有限公司 | Extruder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103029285A (en) | 2013-04-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 316031 Zhejiang city of Zhoushan province Dinghai Jintang Zhen Shan Tan xihou Industrial Zone Liu Road No. 2 Patentee after: Zhejiang Dong Bin rubber and plastic screw Co., Ltd. Address before: Dinghai Jintang town for road 316031 in Zhejiang province Zhoushan city Zhejiang No. 28 Dong Bin rubber machine screw Co. Ltd. Patentee before: Zhejiang Dongbin Rubber Machinery Screw Co., Ltd. |