CN2522238Y - Engaged parallel same-directional double-screw exturding machine - Google Patents
Engaged parallel same-directional double-screw exturding machine Download PDFInfo
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- CN2522238Y CN2522238Y CN 02228373 CN02228373U CN2522238Y CN 2522238 Y CN2522238 Y CN 2522238Y CN 02228373 CN02228373 CN 02228373 CN 02228373 U CN02228373 U CN 02228373U CN 2522238 Y CN2522238 Y CN 2522238Y
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Abstract
The utility model discloses a meshing, parallel and synclastic screw extruder, and comprises a transmission device, a feeding device and an extruding device. The utility model is characterized in that the extruding device consists of a material cylinder and bi-screw elements, which are meshed, which rotate in parallel and in the same direction, and which are arranged in the material cylinder. The screw elements consist of a screw shaft, a thread element, a left-hand thread element, and a kneading element. A material outlet of the material cylinder is equipped with a gear pump and an extruding die head in sequence. The thread element, the left-hand thread element and the kneading element are connected with the screw shaft in sequence via an involute spline. The utility model settles the problem that a plasticizing reaction with a prior screw extruder is incomplete, and impulse extrusion can be easily caused, to the extruding is unstable and uneven and a two-stage extruding has to be carried out. The utility model realizes the reactive plasticizing and the reactive compatibility, and can extrude the biodegradable plate material via one reaction. The utility model is provided with the advantage of the complete material reaction, the little side-reaction, the stable pressure, the even material output, the low energy consumption, and the extremely high production efficiency.
Description
Technical field
The utility model belongs to a kind of chemical machinery, and it is specifically related to a kind of double screw extruder, the parallel parallel dual-screw extruding machine of especially a kind of engagement.
Background technology
The extruder kind is more, is useful on the various extruders of food, plastics and other processing industry.Its function is mainly used in the mixing and the increase-volume of material, and therefore, its structure mainly adopts single screw rod, to reach technological requirement.Along with science and technology development, extruder is extruded as the reaction that a kind of flow reactor is used for polymer.Because can make the polymer performance variation, functionalization, the production serialization, technology simple economy, extruder have been used for various industries.Have a kind of double screw extruder to be mainly used in extruding and processing of plastic material at present, because its draw ratio is little, the plasticizing reaction not exclusively, because the double screw extruder extrusion pressure is little, be easy to generate pulse phenomenon again, therefore exist and extrude instability, uneven problem must be carried out second order and be extruded.Second order has been extruded two kinds of methods: the one, earlier with the material granulation, extrude again, so just must increase Granulation Equipments, increase investment cost and cost of use, the 2nd, adopt single-screw machine to carry out second order again and extrude, the heated time of material is long like this, makes stress distribution of material inhomogeneous, outward appearance is rough not attractive in appearance, reduces every performance indications of material.Because exist above-mentioned lacking to conceal, present double screw extruder can not be used for extruding of biodegradable material sheet material.
Summary of the invention
Goal of the invention of the present utility model is exactly the defective at the said goods, and a kind of energy stable and uniform is provided, and one-time reaction is extruded the parallel parallel dual-screw extruding machine of engagement of biodegradable material sheet material, to remedy the deficiency of the said goods.
Goal of the invention of the present utility model is achieved in that it comprises transmission device 1, drawing-in device 2 and extrusion device 3, it is characterized in that: extrusion device 3 is made up of the parallel homodromal twin-screw element 5 with the engagement in being contained in barrel of barrel 4, screw element 5 is made up of screw shaft 6, screwing element 7, left-hand thread element 8 and kneading member 9, at the discharging opening of barrel 4 gear pump 10 and extrusion die 11 is housed successively; Screwing element 7, left-hand thread element 8, kneading member 9 are connected in turn on the screw shaft 6 by involute spline; Between gear pump 10 and extrusion die 11, connector 12 is housed, water cycle temperature control device 13 is housed in the connector 12; Extrusion die 11 is suspended on the connector 12 with 45, have two vaccum exhaust outlets 14 on the barrel 4, these two vaccum exhaust outlets 14 can be arranged at from any two bringing-up sections of second bringing-up section to the, ten bringing-up sections, and control valve is installed respectively, in order to unlatching, close or operation such as natural exhaust; Barrel 4 bottoms are provided with liquid charge door 15, liquid charge door 15 is arranged at any the bringing-up section bottom from second bringing-up section to the, seven bringing-up sections, fully mix with material in order to liquid adjuvants being injected in the barrel accurately, equably, participate in reaction and extrude overall process by syringe pump.Screwing element can be according to material characteristics, process conditions, and reaction type select to adopt single head, double end or three-start screw element, and same kneading member also can be selected the kneading member of 30 °, 45 °, 60 ° or 90 ° arbitrarily.
The characteristics of the utility model maximum are:
1, given full play to the function of extruder as flow reactor, realized " response type plasticising " and " response type increase-volume " two courses of reaction in the parallel co-rotating twin screw extruder of engagement, one-time reaction is extruded the biodegradable material sheet material.
2, the utility model is by the reasonable combination to double screw extruder screwing element and kneading member, realized with starch being the production technology of primary raw material, by the position of exhaust outlet and the position of liquid adjuvants charge door rationally are provided with, make material reaction fully, fully, side reaction is few.
3, molten mass measurement gear pump makes extrusion pressure more steady, and discharging is more even, has reduced energy consumption, has improved production efficiency.
4, abandoned the first dual-screw-stem machine granulation of using, use the traditional handicraft of single-screw machine extrusion sheet again, and, reduced equipment investment directly with extrusion sheet of parallel one step of co-rotating twin screw extruder of engagement, reduced the operating cost of production system, production cost reduces about 30% than legacy equipment.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model extrusion die and connector construction schematic diagram
Fig. 3 is the utility model barrel and screw-rod structure schematic diagram
Fig. 4 is the compression/expansion action principle figure of double screw extruder of the present utility model
Fig. 5 is the shear-mixed action principle figure of kneading member of the present utility model system
Fig. 6 is the utility model kneading member and screwing element combination schematic diagram
Fig. 7 is the one start screw element of double screw extruder of the present utility model
Fig. 8 is the double thread element of double screw extruder of the present utility model
Fig. 9 is the three-start screw element of double screw extruder of the present utility model
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 1 to Figure 3, the utility model comprises transmission device 1, drawing-in device 2 and extrusion device 3, extrusion device 3 is made up of the parallel homodromal twin-screw element 5 with the engagement in being contained in barrel of barrel 4, twin-screw element 5 is contained on the transmission device 1, drive by transmission device 1, screw element 5 is made up of screw shaft 6, screwing element 7, left-hand thread element 8 and kneading member 9, at the discharging opening of barrel 4 gear pump 10 and extrusion die 11 is housed successively; Screwing element 7, left-hand thread element 8, kneading member 9 are connected in turn on the screw shaft 6 by involute spline; Between gear pump 10 and extrusion die 11 connector 12 is housed, the temperature that water cycle temperature control device 13 can reduce extrusion die 11 is housed in the connector 12, the sheet material light that extrusion die 11 is extruded is level and smooth, the coking phenomenon do not occur; Extrusion die 11 is a T type extrusion sheet die head, it is suspended on the connector 12 with 45, have two vaccum exhaust outlets 14 on the barrel 4, these two vaccum exhaust outlets 14 can be arranged at from any two bringing-up sections of second bringing-up section to the, ten bringing-up sections, and control valve is installed respectively, in order to unlatching, close or operation such as natural exhaust; Barrel 4 bottoms are provided with liquid charge door 15, liquid charge door 15 is arranged at any the bringing-up section bottom from second bringing-up section to the, seven bringing-up sections, fully mix with material in order to liquid adjuvants being injected in the barrel accurately, equably, participate in reaction and extrude overall process by syringe pump.
This utility model can be according to material characteristics, process conditions, reaction type, select Fig. 7 to single head, double end, three-start screw element shown in Figure 9, and double thread element effect the best, because it provides maximum reaction volume and minimum input shear work, same kneading member also can be selected the kneading member of 30 °, 45 °, 60 ° or 90 ° arbitrarily.
Claims (9)
1, the parallel parallel dual-screw extruding machine of a kind of engagement, it comprises transmission device, feeding and extrusion device, it is characterized in that: extrusion device is made up of the parallel homodromal twin-screw element with the engagement in being contained in barrel of barrel, screw element is made up of screw shaft, screwing element, left-hand thread element and kneading member, at the discharging opening of barrel gear pump and extrusion die, screwing element is housed successively, the left-hand thread element, kneading member is connected in turn on the screw shaft by involute spline.
2, the parallel parallel dual-screw extruding machine of a kind of engagement of claim 1 is characterized in that: between gear pump and extrusion die connector is housed.
3, the parallel parallel dual-screw extruding machine of a kind of engagement of claim 2 is characterized in that: the water cycle temperature control device is housed in the connector.
4, the parallel parallel dual-screw extruding machine of a kind of engagement of claim 1, it is characterized in that: extrusion die is a T type extrusion die, and it is suspended on the connector.
5, claim 1 or 4 the parallel parallel dual-screw extruding machine of a kind of engagement, it is characterized in that: T type extrusion die is suspended on the connector with 45.
6, the parallel screw extruder in the same way of a kind of engagement of claim 1 is characterized in that: have two vaccum exhaust outlets on the barrel.
7, the parallel screw extruder in the same way of a kind of engagement of claim 1 is characterized in that: the barrel bottom is provided with the liquid charge door.
8, the parallel screw extruder in the same way of a kind of engagement of claim 1, it is characterized in that: screwing element is single head, double end or three-start screw element.
9, the parallel screw extruder in the same way of a kind of engagement of claim 1 is characterized in that: kneading member is the kneading member of 30 °, 45 °, 60 ° or 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228373 CN2522238Y (en) | 2002-02-07 | 2002-02-07 | Engaged parallel same-directional double-screw exturding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228373 CN2522238Y (en) | 2002-02-07 | 2002-02-07 | Engaged parallel same-directional double-screw exturding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522238Y true CN2522238Y (en) | 2002-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02228373 Expired - Fee Related CN2522238Y (en) | 2002-02-07 | 2002-02-07 | Engaged parallel same-directional double-screw exturding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522238Y (en) |
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 |
| CN102320117A (en) * | 2011-05-26 | 2012-01-18 | 株洲时代工程塑料制品有限责任公司 | Preparation method for glass fiber reinforced AS (acrylonitrile-styrene) resin |
| CN102529062A (en) * | 2012-01-30 | 2012-07-04 | 天津戈瑞德新材料科技有限公司 | Screw rod assembly used for extrusion processing without dry processing to nylon |
| CN102773990A (en) * | 2012-06-19 | 2012-11-14 | 苏州博云塑业有限公司 | Screw for double-screw extruder |
| CN105291402A (en) * | 2015-11-06 | 2016-02-03 | 嘉兴市高正高分子材料有限公司 | Screw assembly for nano-powder master batch processing |
| CN109130138A (en) * | 2018-07-31 | 2019-01-04 | 南京科森挤出装备有限公司 | Parallel double-screw extruder whole one start screw covers combined method |
-
2002
- 2002-02-07 CN CN 02228373 patent/CN2522238Y/en not_active Expired - Fee Related
Cited By (10)
| 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 |
| CN102320117A (en) * | 2011-05-26 | 2012-01-18 | 株洲时代工程塑料制品有限责任公司 | Preparation method for glass fiber reinforced AS (acrylonitrile-styrene) resin |
| CN102320117B (en) * | 2011-05-26 | 2014-11-26 | 株洲时代工程塑料制品有限责任公司 | Preparation method for glass fiber reinforced AS (acrylonitrile-styrene) resin |
| CN102529062A (en) * | 2012-01-30 | 2012-07-04 | 天津戈瑞德新材料科技有限公司 | Screw rod assembly used for extrusion processing without dry processing to nylon |
| CN102529062B (en) * | 2012-01-30 | 2015-05-20 | 天津万塑新材料科技有限公司 | Screw rod assembly used for extrusion processing without dry processing to nylon |
| CN102773990A (en) * | 2012-06-19 | 2012-11-14 | 苏州博云塑业有限公司 | Screw for double-screw extruder |
| CN105291402A (en) * | 2015-11-06 | 2016-02-03 | 嘉兴市高正高分子材料有限公司 | Screw assembly for nano-powder master batch processing |
| CN105291402B (en) * | 2015-11-06 | 2018-05-15 | 嘉兴高正新材料科技股份有限公司 | A kind of screw combinations for the processing of nano-powder master batch |
| CN109130138A (en) * | 2018-07-31 | 2019-01-04 | 南京科森挤出装备有限公司 | Parallel double-screw extruder whole one start screw covers combined method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |