CN202878656U - Exhausting type blade extruder - Google Patents
Exhausting type blade extruder Download PDFInfo
- Publication number
- CN202878656U CN202878656U CN2012204854996U CN201220485499U CN202878656U CN 202878656 U CN202878656 U CN 202878656U CN 2012204854996 U CN2012204854996 U CN 2012204854996U CN 201220485499 U CN201220485499 U CN 201220485499U CN 202878656 U CN202878656 U CN 202878656U
- Authority
- CN
- China
- Prior art keywords
- blade
- stator
- exhaust
- rotor
- exhausting
- 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.)
- Withdrawn - After Issue
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Classifications
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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
- B29C48/50—Details of extruders
- B29C48/76—Venting, drying means; Degassing means
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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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- 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
- B29C48/501—Extruder feed section
-
- 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
- B29C48/68—Barrels or cylinders
- B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
- B29C48/686—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having grooves or cavities
Abstract
The utility model relates to an exhausting type blade extruder. In the exhausting type blade extruder, blade exhausting units are mounted between two blade plastification and conveying units in series; when a melt enters the exhausting units, the volume of a closed space formed by blades, stators, baffles and rotors is gradually enlarged and the eccentric distance between the rotor and the stator of each exhausting unit is great, so that pressure of the melt in the exhausting units is rapidly reduce to be at a negative-pressure state and compressed gas and gasified volatilized components are foamed in the melt and bubbles are broken; and escaped gas is discharged from an exhausting opening. With the adoption of the exhausting manner, the exhausting type blade extruder has the characteristics of being simple in structure, small in the exhausting unit volume and the like.
Description
Technical field
The utility model relates to the polymer material molding processing technique field, is specifically related to a kind of exhaust blade extruder.
Background technology
In the polymer material molding process, usually because contain in the raw material too much moisture, gas or various volatile matter such as monomer, oligomer, solvent etc. need to be from melt Exhaust Gas.These gases be as discharging, the defective such as may cause that product surface is matt, hole appears in inside, bubble and surface are dark and gloomy, even can have influence on physical and mechanical properties, chemical property and the electrical property of goods.Forming process can not normally be carried out: such as wire drawing and blown film process, if there is bubble in the melt, will cause fracture of wire and film breaks.Therefore in order to improve quality of item, before processing, need material is carried out predrying or directly adopts vented extruder.Adopt predryingly, not only will increase equipment and operation, and pellet and some are contained the plastics of high boiling solvent, monomer, oligomer, poor effect.Thereby the needs employing has degassing function and the very high degassing extruder of exhaust efficiency is realized exhaust.
ZL200810026054.X discloses a kind of high polymer material plasticizing transportation method and equipment based on draft flowing deformation.Utilize eccentric stator, rotor and be installed in epitrochanterian some compositions and surround the space with definite geometry to blade and with the front and rear baffle of rotor coaxial.When blade during with rotor, because stator has certain offset with respect to rotor, thereby successively ascending more descending cyclically-varying of the volume in above-mentioned space, when becoming large, volume includes material in, compacting when volume diminishes, plasticizing are also discharged material, realize that the material plasticizing that direct stress plays a major role transports.
Conventional vented screw can think to be in series by two screw rods each section screw rod definite functions.The exhaust outlet front is the first rank screw rod, plays the effect of basic plastifying material; The screw rod of exhaust outlet back is the second order screw rod, plays the effect of further plastifying material and metering.Be exhaust section between two sections, exhaust section has darker screw channel simultaneously, for good exhaust effect, so that the complex structure of screw rod and difficult processing.Blade extruder has the characteristics such as complete positive conveyance characteristic plasticizing transfer efficiency is high, floor space is little, energy consumption is low, will be widely used at the polymer material molding manufacture field.Just require the high equipment of exhaust performance valency to adapt with it the material that volatile content is high in the raising of fabricated product quality requirement and process.
The utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of exhaust blade extruder is provided, and concrete technical scheme is as follows.
A kind of exhaust blade extruder of the present utility model comprises that two or more blade plasticizings transport unit and blade exhaust unit, and blade exhaust units in series is installed in two blade plasticizings and transports between the unit.It is that the cyclically-varying that utilizes the blade plasticizing to transport unit volume realizes that the plasticizing of blade extruder transports.
Further, described blade exhaust unit comprises stator, rotor, protruding blade, recessed blade, blast pipe, the first baffle plate and second baffle, and rotor and stator be concentric to be installed and rotor is arranged in the endoporus of stator, the endoporus of stator and stator outer surface off-centre; The first baffle plate, second baffle are installed in the two ends of stator with one heart, play sealing and water conservancy diversion; Protruding blade, recessed blade mounted in pairs are in the groove of rotor, and concavo-convex blade slides in groove under the effect of stator; On stator and be positioned at the spatial volume maximum that is comprised of stator, rotor, protruding blade, recessed blade, the first baffle plate and second baffle and offer exhaust outlet, exhaust outlet is connected with blast pipe.
Further, the eccentric throw of blade exhaust unit rotor and the stator eccentric throw that transports unit rotor and stator than adjacent two blades plasticizing is large and eccentric direction is opposite.
Further, described blade exhaust unit and blade plasticization unit all adopt hollow stator with cylindrical cavity, place bore of stator and with the cylindrical rotor of stator off-centre, be arranged in rotor radially square-section through hole and along the equally distributed some compositions of rotor circumference direction arrange to the protruding blade that occurs, recessed blade and in the stator both sides and with the parts such as the baffle plate composition of the concentric installation of stator.
In the above-mentioned exhaust blade extruder, definite geometry and volume are ascending realizes exhaust in the periodically variable space more from large to small having to make material, and material mainly is subject to the tensile stress effect in the exhaust process.When material upstream blade plasticizing transported the unit and enters into the blade exhaust unit, material was to enter into the space that volume changes from small to big from volume space from large to small.
The utility model provides in the method for exhausting, the variation of periodically changing from small to big again from large to small in time of the spatial volume of material process.The pressure that upstream plasticizing before melt enters into exhaust unit transports the unit melt increases gradually, when melt enters into exhaust unit, because blade, stator, baffle plate, the formed enclosure space volume of rotor increase gradually, simultaneously owing to eccentric throw between exhaust unit rotor and the stator is large, thereby so that the pressure of melt sharply is reduced to negative pressure state in the exhaust unit, so that the gas that originally was compressed and the volatile matter that gasified just in melt foaming simultaneously bubble break, escaping gas is got rid of the realization exhaust from exhaust outlet.
Exhaust unit is installed between two plasticization units in the utility model, and the exhaust unit rotor is opposite with the eccentric direction between plasticization unit rotor and the stator with eccentric direction between the stator and eccentric throw is larger.When melt flowed into exhaust unit, melt was to enter into the space that the exhaust unit volume changes from small to big from plasticization unit volume space from large to small, upstream.In volume space from large to small, the squeezing action that melt is subject to strengthens gradually, and the melt internal pressure raises.After melt enters exhaust unit, blade, stator, baffle plate, the formed enclosure space volume of rotor increase gradually during the one side rotor, simultaneously owing to eccentric throw between exhaust unit rotor and the stator is larger, this spatial volume is maximum, thereby so that melt pressure sharply is reduced to negative pressure state, the while bubble breaks so that the gas that originally was compressed and the volatile matter that gasified foams in melt, and escaping gas is got rid of from exhaust outlet.
The utility model is compared with existing method for exhausting and device, has following advantage:
1, exhauster structure is simple, has overcome the shortcoming of screw type discharging device of air complex structure, equipment processing difficulties;
2, the location arrangements of exhaust unit is flexible, can at diverse location exhaust outlet be set according to the material of different physical properties;
3, melt mainly is subject to the tensile stress effect when melt release of pressure in the exhaust process, Surface Renewal, and Surface Renewal is fast, good exhaust effect.
Description of drawings
Fig. 1 is the A--A cutaway view of blade exhaust unit.
Fig. 2 is the B--B cutaway view of blade degassing extruder.
Fig. 3 is the C--C cutaway view of blade degassing extruder.
Fig. 4 is the D--D cutaway view of blade exhaust unit.
Fig. 5 is the E--E cutaway view of blade exhaust unit.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further, but the claimed scope of the utility model is not limited to the scope of embodiment statement.
Referring to Fig. 1, Fig. 2, a kind of exhaust blade extruder that the utility model provides mainly transports unit (I, III) by two or more blade plasticizings and forms with a blade exhaust unit II overlapped in series.The blade exhaust unit mainly is made of stator 1, rotor 2, protruding blade 3, recessed blade 4, blast pipe 5 and the first baffle plate 6, second baffle 7.The endoporus of stator 1 and outer surface are eccentric, rotor 2 and stator 1 concentric installation, and the first baffle plate 6, second baffle 7 are installed in the two ends of stator with one heart, play sealing and water conservancy diversion.Referring to Fig. 4, Fig. 5, concavo-convex blade mounted in pairs is in the groove of rotor 2, and blade is in stator inner hole mechanical force lower slider.Offering exhaust outlet with respect to the spatial volume maximum that is formed by stator 1, rotor 2, protruding blade 3, recessed blade 4 and the first baffle plate 6, second baffle 7 and be connected with blast pipe 5.
Referring to Fig. 2, Fig. 3, blade exhaust unit II is installed in series and transports the unit I and the plasticizing of the second blade transports between the unit III in the first blade plasticizing, the eccentric direction of blade exhaust unit II rotor and stator and the eccentric direction of plasticization unit (I, III) rotor and stator is opposite and eccentric throw is large.It is that the cyclically-varying that utilizes the blade plasticizing to transport unit volume realizes that its plasticizing of blade extruder transports, when melt transported the unit I and enters into blade exhaust unit II from the first blade plasticizing, melt was to enter into the space that volume changes from small to big from volume space from large to small.In volume space from large to small, the pressure that melt is subject to increases gradually.When melt enters into the exhaust unit II, in the exhaust unit since blade, stator, baffle plate, the formed enclosure space volume of rotor increase gradually, simultaneously owing to eccentric throw between blade exhaust unit rotor 2 and the stator 1 is large, thereby so that melt pressure sharply is reduced to negative pressure state, originally the gas that was compressed and the volatile matter that gasified just in melt foaming simultaneously bubble break, escaping gas is from blast pipe 5 discharges.
Claims (3)
1. exhaust blade extruder is characterized in that comprising that blade exhaust unit and two transport the unit with the blade plasticizing, and blade exhaust units in series is installed in two blades plasticizings and transports between the unit.
2. exhaust blade extruder according to claim 1, it is characterized in that described blade exhaust unit comprises stator (1), rotor (2), protruding blade (3), recessed blade (4), blast pipe (5), the first baffle plate (6) and second baffle (7), rotor (2) and stator (1) be concentric to be installed and rotor (2) is arranged in the endoporus of stator (1), the endoporus of stator (1) and stator outer surface off-centre; The first baffle plate (6), second baffle (7) are installed in the two ends of stator (1) with one heart, play sealing and water conservancy diversion; Protruding blade (3), recessed blade (4) mounted in pairs are in the groove of rotor (2), and concavo-convex blade slides in groove under the effect of stator (1); On stator and be positioned at the spatial volume maximum that is comprised of stator (1), rotor (2), protruding blade (3), recessed blade (4), the first baffle plate (6) and second baffle (7) and offer exhaust outlet, exhaust outlet is connected with blast pipe (5).
3. the eccentric throw that exhaust blade extruder according to claim 2, the eccentric throw that it is characterized in that blade exhaust unit rotor and stator transport unit rotor and stator than adjacent two blades plasticizing is large and eccentric direction is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204854996U CN202878656U (en) | 2012-09-22 | 2012-09-22 | Exhausting type blade extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204854996U CN202878656U (en) | 2012-09-22 | 2012-09-22 | Exhausting type blade extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202878656U true CN202878656U (en) | 2013-04-17 |
Family
ID=48070118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204854996U Withdrawn - After Issue CN202878656U (en) | 2012-09-22 | 2012-09-22 | Exhausting type blade extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202878656U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2018114888A1 (en) * | 2016-12-21 | 2018-06-28 | Compagnie Generale Des Etablissements Michelin | Torpedo for extruder |
| CN110742491A (en) * | 2019-11-27 | 2020-02-04 | 河南普润仪器设备有限公司 | Anti-overflow and anti-scald electric cooker |
-
2012
- 2012-09-22 CN CN2012204854996U patent/CN202878656U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2018114888A1 (en) * | 2016-12-21 | 2018-06-28 | Compagnie Generale Des Etablissements Michelin | Torpedo for extruder |
| US11305460B2 (en) | 2016-12-21 | 2022-04-19 | Compagnie Generale Des Etablissements Michelin | Torpedo for extruder |
| CN110742491A (en) * | 2019-11-27 | 2020-02-04 | 河南普润仪器设备有限公司 | Anti-overflow and anti-scald electric cooker |
| CN110742491B (en) * | 2019-11-27 | 2021-04-02 | 合肥亚摩斯电气有限公司 | Anti-overflow and anti-scald electric cooker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130417 Effective date of abandoning: 20150701 |
|
| RGAV | Abandon patent right to avoid regrant |