CN2925844Y - Reinforced-fibre thermoplastic double-screw extruder - Google Patents
Reinforced-fibre thermoplastic double-screw extruder Download PDFInfo
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- CN2925844Y CN2925844Y CNU2006200591286U CN200620059128U CN2925844Y CN 2925844 Y CN2925844 Y CN 2925844Y CN U2006200591286 U CNU2006200591286 U CN U2006200591286U CN 200620059128 U CN200620059128 U CN 200620059128U CN 2925844 Y CN2925844 Y CN 2925844Y
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- screw
- machine barrel
- screw extruder
- double screw
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Abstract
The utility model discloses a fiber reinforced thermoplastics double screw extruder, consisting of a machine head, a machine base, a machine barrel, a hopper, a twin-screw, a heating block, at least an air exhaust opening and material outlet and a short fiber material inlet; the machine head consists of an electromotor and a connecting device, the twin-screw located in the machine barrel consists of a transfer zone, a plasticizing zone and a homogenizing zone, the connecting device of the machine head is connected with the twin-screw arranged in the machine barrel, the hopper and the air exhaust opening are connected with an inner chamber of the machine barrel, the hopper is located at the right side of the machine head of the machine barrel head, and the air exhaust opening is located at the left side of the material outlet of the machine barrel tail; the machine barrel is covered by the heating block; the short fiber material inlet connected with the inner chamber of the machine barrel is located on the upper end of an optional position of the twin-screw plasticizing zone. Applying the double screw extruder can increase the strength of the fiber effectively, and decrease the equipment investment cost and production cost. The adaptability of the double screw extruder is high, the process is easy, the manufacturing cost is low, with a good market prospect.
Description
Technical field
The utility model relates to the plastics machinery manufacture field, specifically is meant a kind of fiber reinforced thermoplastics double screw extruder.
Background technology
Fiber reinforced thermoplastics FRTP (fiber reinforce thermoplastic) is to prepare the enhancement mode modified plastics by fortifying fibre, compare common plastics, the mechanical performance and the heat resistance of fiber reinforced thermoplastics greatly improve, and reach or surpass the performance of metal material in some aspects.At present, the production method of fiber reinforced thermoplastics mainly is to extrude processing by screw rod.
Existing screw rod extrusion device mainly contains single screw extrusion machine, double screw extruder, multi-screw extruder and Planetary Screw Extruder etc.Being currently applied to the fiber reinforced thermoplastics screw rod, to extrude processing mainly be that single screw rod and twin-screw are extruded processing.Fiber reinforced thermoplastics list screw rod is extruded processing mode two kinds, and a kind of mode is that short fiber and raw material are together added by hopper, and to be short fiber add at subsequently short fiber charge door another kind of mode.Double screw extruder can be further divided in the same way again, incorgruous rotation, engagement, non-mesh form and stagger arrangement, various ways such as arranged side by side.The short fiber adding mode of twin-screw is that fiber together adds from hopper in company with other material.
Short fiber reinforced thermoplastics for single screw rod or twin-screw is extruded, short fiber and other material together add from hopper, before entering screw rod and extruding, raw material such as short fiber and resin, fire retardant are mixed together, and mix the back and directly enter screw rod from charging aperture (hopper) and extrude.In the mixing process and during hopper feed, short fiber often scatters and conglomeration because of mechanical force, and it is inhomogeneous to make that raw material mixes, and influence product quality, even raw material can not use by the gross.Owing to also can making raw material, the agglomerating reason of short fiber stops up, normally blanking and influence production process at hopper mouth place.For addressing the above problem, need used short fiber is carried out surface treatment, to prevent the said process conglomeration.This also makes the price height of short fiber reinforced thermoplastics.On the other hand, because short fiber and raw material compression in extruder jointly, fusion, mixing, resin raw material is by the solid-state thickness attitude that becomes, this process is because the adding of fiber makes the viscosity of compound obviously increase, thereby make the fusion process of material resin slack-off, cause yield poorly, the energy consumption height of specific yield, equipment attrition is big.When especially resin melted under the effect of abrasive forces gradually in the extruder screw compression section, high-intensity shearing can make part fibrous fracture excessive, influences product strength.If modulus such as use carbon fiber are big, the specialty fibers of fingerprinting stress difference, it is more obvious that properties of product are descended.Generally speaking, short fiber adds with raw materials such as resins and has reinforced difficulty, must be through surface treatment, cost height, the problem that influences production process and influence aspects such as product strength.
For double screw extruder, because there is bigger gap with respect to double screw extruder in single screw extrusion machine aspect the mixing effect of material, the plastic products quality that the fiber reinforced thermoplastics quality that makes single screw rod extrude is extruded than double screw extruder is low, therefore, the improvement to the adding mode of double screw extruder short fiber has bigger superiority.
The utility model content
The utility model purpose is to overcome the shortcoming of prior art, be engaged in the screw extruder design for many years through utility model people collection, research, the accumulation of the practical experience of exploitation and a large amount of suitability for industrialized production and application, develop a kind of effective fortifying fibre intensity, reduce the double screw extruder of equipment investment cost.
The purpose of this utility model realizes by following technical proposals:
The fiber reinforced thermoplastics double screw extruder comprises head, support, machine barrel, hopper, twin-screw, heat block, at least one exhaust outlet and discharging opening; Head comprises motor and jockey, twin-screw is positioned at machine barrel, constitute by transportation section, fluxing zone and homogenizing zone, the jockey of the head twin-screw interior with being arranged on machine barrel is connected, hopper and exhaust outlet communicate with the machine barrel inner chamber respectively, hopper is positioned at the head right side of barrel head, and exhaust outlet is positioned at the discharging opening left side of machine barrel afterbody; Heat block is enclosed within outside the machine barrel; Described double screw extruder also comprises the short fiber charge door, and described short fiber charge door communicates with the machine barrel inner chamber, is positioned at upper end, twin-screw fluxing zone optional position or side.
For further realizing the purpose of this utility model, described short fiber charge door is positioned at preceding half section of fluxing zone, and the part near the transportation section in the fluxing zone is preceding half section.
Described exhaust outlet is positioned at the upper end or the side of machine barrel, is connected with vavuum pump.
Described exhaust outlet is 2, lays respectively at twin-screw homogenizing zone diverse location.
Described short fiber charge door cooperates with the short fiber feeding device that is positioned at its upper end.
Described twin-screw can be in the same way engagement type twin-screw or incorgruous engagement type twin-screw or is made up of tandem engagement type screw element on the mandrel.
With respect to prior art, the utlity model has following advantage and effect:
(1) the utility model can overcome the shortcoming of prior art products intensity difference, effectively improves product strength, and overall product intensity improves more than 12%.
(2) overcome prior art and extrude or repeatedly extrude the shortcoming that causes production cost high for strengthening product strength for twice by single screw rod and twin-screw, the utility model can be realized extruding pelletization one time, effectively reduces equipment investment and production process cost.
(3) this double screw extruder adaptability is strong, processes simple and easyly, and low cost of manufacture has market prospects preferably.
Description of drawings
Fig. 1 is the structural representation of the utility model fiber reinforced thermoplastics double screw extruder.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the claimed scope of the utility model is not limited to the described scope of embodiment.
Embodiment 1
As shown in Figure 1: the fiber reinforced thermoplastics double screw extruder comprises head 1, support 9, machine barrel 3, hopper 2, twin-screw 8, heat block 4, exhaust outlet 6 and discharging opening 7; Head 1 comprises motor and jockey, twin-screw 8 is positioned at machine barrel, constitute by transportation section 10, fluxing zone 20 and homogenizing zone 30, the jockey of the head twin-screw 8 interior with being arranged on machine barrel is connected, hopper 2 and exhaust outlet 6 communicate with machine barrel 3 inner chambers respectively, hopper 2 is positioned at head 1 right side of machine barrel 3 heads, and exhaust outlet 6 is positioned at discharging opening 6 left sides of machine barrel 3 afterbodys; Heat block 4 is enclosed within outside the machine barrel 3; Double screw extruder also comprises short fiber charge door 5, and short fiber charge door 5 communicates with machine barrel 3 inner chambers, is positioned at the upper end of twin-screw fluxing zone 20 1 positions.Exhaust outlet 6 numbers are 1.
In the present embodiment, twin-screw 8 is made up of tandem engagement type screw element on the mandrel, is incorgruous engagement type twin-screw.Short fiber charge door 5 is positioned at preceding half section of fluxing zone.Exhaust outlet 6 is positioned at the upper end of machine barrel, is connected with the vavuum pump (not shown).Short fiber charge door 5 cooperates with the short fiber feeding device (not shown) that is positioned at its upper end.
When using present embodiment middle short fiber reinforced thermoplastics double screw extruder, resin, raw material such as fire retardant mix the back earlier and add from hopper 2, short fiber adds from short fiber charge door 5, motor in the head 1 drives twin-screw 8 rotations by transmission device, material is under the drive of twin-screw, move towards material outlet 7 directions, 10 carry through the transportation section, enter fluxing zone 20, through high shear and plastifying fusion progressively, enter homogenizing zone/metering section 30, increase in that this section material bath surface is long-pending, be deflated the vacuum extractor exhaust of mouth 6, material is constantly extruded from discharging opening 7 after the homogenizing.
The utility model overcomes the shortcoming of prior art products intensity difference, and overall product intensity improves more than 12%.And can overcome prior art and extrude or repeatedly extrude the shortcoming that causes production cost high for strengthening product strength for twice by single screw rod and twin-screw, the utility model can be realized extruding pelletization one time, effectively reduces equipment investment and production process cost.This double screw extruder adaptability is strong, processes simple and easyly, and low cost of manufacture has market prospects preferably.
Compare with embodiment 1, the difference of present embodiment is that twin-screw 8 is engagement type common double screw rod in the same way, and the exhaust outlet number is 2, and short fiber charge door 5 communicates with machine barrel 3 inner chambers, is positioned at the preceding half section side of twin-screw fluxing zone 20.Other is with embodiment 1, and implementation result is with embodiment 1.
Can better realize the utility model as mentioned above.
Claims (8)
1, fiber reinforced thermoplastics double screw extruder comprises head, support, machine barrel, hopper, twin-screw, heat block, at least one exhaust outlet and discharging opening; Head comprises motor and jockey, twin-screw is positioned at machine barrel, constitute by transportation section, fluxing zone and homogenizing zone, the jockey of the head twin-screw interior with being arranged on machine barrel is connected, hopper and exhaust outlet communicate with the machine barrel inner chamber respectively, hopper is positioned at the head right side of barrel head, and exhaust outlet is positioned at the discharging opening left side of machine barrel afterbody; Heat block is enclosed within outside the machine barrel; It is characterized in that described double screw extruder also comprises the short fiber charge door, described short fiber charge door communicates with the machine barrel inner chamber, is positioned at upper end, twin-screw fluxing zone optional position or side.
According to the described fiber reinforced thermoplastics double screw extruder of claim 1, it is characterized in that 2, described short fiber charge door is positioned at preceding half section of fluxing zone.
According to the described fiber reinforced thermoplastics double screw extruder of claim 1, it is characterized in that 3, described exhaust outlet is positioned at the upper end or the side of machine barrel, is connected with vavuum pump.
According to the described fiber reinforced thermoplastics double screw extruder of claim 1, it is characterized in that 4, described twin-screw is engagement type twin-screw in the same way.
According to the described fiber reinforced thermoplastics double screw extruder of claim 1, it is characterized in that 5, described twin-screw is incorgruous engagement type twin-screw.
According to claim 4 or 5 described fiber reinforced thermoplastics double screw extruders, it is characterized in that 6, described twin-screw is made up of tandem engagement type screw element on the mandrel.
7, according to the described fiber reinforced thermoplastics double screw extruder of claim 1, it is characterized in that described exhaust outlet is 2, lay respectively at twin-screw homogenizing zone diverse location.
According to the described fiber reinforced thermoplastics double screw extruder of claim 1, it is characterized in that 8, described short fiber charge door cooperates with the short fiber feeding device that is positioned at its upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200591286U CN2925844Y (en) | 2006-05-19 | 2006-05-19 | Reinforced-fibre thermoplastic double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200591286U CN2925844Y (en) | 2006-05-19 | 2006-05-19 | Reinforced-fibre thermoplastic double-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2925844Y true CN2925844Y (en) | 2007-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200591286U Expired - Fee Related CN2925844Y (en) | 2006-05-19 | 2006-05-19 | Reinforced-fibre thermoplastic double-screw extruder |
Country Status (1)
| Country | Link |
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| CN (1) | CN2925844Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126262A (en) * | 2011-02-24 | 2011-07-20 | 华南理工大学 | Blade type processing equipment and processing method of plastic and plantfiber composite materials |
| CN102145514A (en) * | 2011-03-20 | 2011-08-10 | 北京理工大学 | Quasi melting static mixing method for producing single polymer composite material product |
| CN103223721A (en) * | 2013-05-14 | 2013-07-31 | 深圳市虹彩新材料科技有限公司 | Double-screw degassing extruder |
| CN103522556A (en) * | 2013-01-29 | 2014-01-22 | 机械科学研究总院先进制造技术研究中心 | Online moulding method of light high strength composite material |
| CN103935014A (en) * | 2014-04-01 | 2014-07-23 | 柏力开米复合塑料(昆山)有限公司 | Screw rod set |
| CN104339615A (en) * | 2014-07-24 | 2015-02-11 | 四川中装科技有限公司 | Feed device of extruder |
| CN105066609A (en) * | 2015-08-20 | 2015-11-18 | 无锡龙派机械科技有限公司 | Double-screw drying machine |
| CN109715357A (en) * | 2016-09-13 | 2019-05-03 | Spc向日葵塑料复合有限责任公司 | For based on sunflower seed shell/sunflower seeds skin material manufacture biological plastics particle method |
-
2006
- 2006-05-19 CN CNU2006200591286U patent/CN2925844Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126262A (en) * | 2011-02-24 | 2011-07-20 | 华南理工大学 | Blade type processing equipment and processing method of plastic and plantfiber composite materials |
| CN102145514A (en) * | 2011-03-20 | 2011-08-10 | 北京理工大学 | Quasi melting static mixing method for producing single polymer composite material product |
| CN103522556A (en) * | 2013-01-29 | 2014-01-22 | 机械科学研究总院先进制造技术研究中心 | Online moulding method of light high strength composite material |
| CN103223721A (en) * | 2013-05-14 | 2013-07-31 | 深圳市虹彩新材料科技有限公司 | Double-screw degassing extruder |
| CN103223721B (en) * | 2013-05-14 | 2015-04-01 | 深圳市虹彩新材料科技有限公司 | Double-screw degassing extruder |
| CN103935014A (en) * | 2014-04-01 | 2014-07-23 | 柏力开米复合塑料(昆山)有限公司 | Screw rod set |
| CN104339615A (en) * | 2014-07-24 | 2015-02-11 | 四川中装科技有限公司 | Feed device of extruder |
| CN105066609A (en) * | 2015-08-20 | 2015-11-18 | 无锡龙派机械科技有限公司 | Double-screw drying machine |
| CN109715357A (en) * | 2016-09-13 | 2019-05-03 | Spc向日葵塑料复合有限责任公司 | For based on sunflower seed shell/sunflower seeds skin material manufacture biological plastics particle method |
| US11312040B2 (en) | 2016-09-13 | 2022-04-26 | Spc Sunflower Plastic Compound Gmbh | Method of producing a bioplastic granulate based on sunflower seed shells/sunflower seed hull material on the one hand and a plastic material on the other hand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070725 Termination date: 20100519 |