CN205219688U - Polypropylene function is syntropy meshing double screw extruder screw rod for master batch - Google Patents
Polypropylene function is syntropy meshing double screw extruder screw rod for master batch Download PDFInfo
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- CN205219688U CN205219688U CN201520964904.6U CN201520964904U CN205219688U CN 205219688 U CN205219688 U CN 205219688U CN 201520964904 U CN201520964904 U CN 201520964904U CN 205219688 U CN205219688 U CN 205219688U
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- kneading block
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Abstract
The utility model discloses a polypropylene function is syntropy meshing double screw extruder screw rod for master batch, including reinforced section, plastify section, to emptying exhaust section, mixing section, vacuum -exhaust section and extrusion section be equipped with first forward screw thread unit, first forward kneading block unit and second forward screw thread unit in the plastify section in order to being equipped with second forward kneading block unit, first reverse kneading block unit and third forward screw thread unit on the empty exhaust section in order, wherein the length of second forward kneading block unit and first reverse kneading block unit is than being 1: 1. The utility model has the advantages that: not having in the extruding of polypropylene function master batch and emitting the material phenomenon, do not have that the transition is cuted and the material decomposes, product quality is good.
Description
Technical field
The utility model relates to the extrusion equipment technical field of plastic processing, especially relates to a kind of screw rod being used in the machine of meshed double screw in the same way of polypropylene modification processing.
Background technology
In the cylinder body of extruding machine with two screw rods engaging in the same way, there is the cylinder barrel through in 8-shaped, the screw rod of two rotating Vortex engagements is provided with in cylinder barrel, every root screw rod interlocks respectively and is provided with the screw thread of different directions or width pitch, compare single screw extrusion machine, extruding machine with two screw rods engaging has advantages such as feeding in raw material easily, mixing plasticizing effect is good, exhaust performance is good in the same way, be widely used in the physical and chemical modified of matrix resin, as blended, filling-modified, strengthen and reactive extrursion etc.
When preparing polypropylene functional agglomerate, owing to comprising different components in formula of master batch, and the physical state of different formulations component also there are differences, in extruding pelletization process, if twin-screw design is improper, easily there is following problem: 1, occur that physics plasticizing is uneven, the problem that melting is incomplete, cause gas outlet overflow, cause the pollution of the improper and production environment of the loss of material, component ratio.2, shearing force is too strong, and temperature raises and exceedes material decomposition temperature, causes material to decompose, and reduces quality of item.
Summary of the invention
The purpose of this utility model is to provide a kind of polypropylene functional agglomerate extruding machine with two screw rods engaging screw rod in the same way that can prevent overflow, prevent material from decomposing.
Technical solution of the present utility model is: a kind of polypropylene functional agglomerate extruding machine with two screw rods engaging screw rod in the same way, comprise feeding section, fluxing zone, to empty exhaust section, mixing section, vacuum exhaust section and extruding zone, described fluxing zone is provided with the first forward threaded elements in turn, first forward kneading block unit and the second forward threaded elements, described to empty exhaust section being provided with in turn the second forward kneading block unit, first reverse kneading block unit and the 3rd forward threaded elements, wherein the length of the second forward kneading block unit and the first reverse kneading block unit is than being 1:1.
Between the first forward threaded elements on fluxing zone and the second forward threaded elements, forward kneading block unit is set, fully can mediate the material of conveying, thus accelerate the plasticizing process of material, to empty exhaust section being arranged length than identical forward kneading block unit and reverse kneading block unit, be convenient to mediate material further, the setting of reverse kneading block simultaneously, inhibition is had to the conveying of material, extend residence time of material, mineralization pressure, make material can fully melting through fluxing zone, and Homogeneous phase mixing, thus avoid the non-infiltration phenomenon of filler that causes because shearing deficiency, stop the generation of overflow, simultaneously, to the 3rd forward threaded elements of empty exhaust section, adopt steep-lead thread, increase discharge surface to amass, be vented more abundant.
The error angle of the kneading block in described first forward kneading block unit is 30 °, and the error angle of the kneading block in the second forward kneading block unit and the first reverse kneading block unit is respectively 45 °.Error angle is that the kneading block of 30 ° both can be sheared material, and accelerate the plastifying fusion of material, facilitate again the conveying of material, error angle is that the kneading block of 45 ° can fully be sheared, and is being partially formed resistance high pressure.
Described mixing section is provided with the 3rd forward kneading block unit, the 4th forward threaded elements, the second reverse kneading block unit, the 5th forward threaded elements, neutral kneading block unit, the 6th forward threaded elements, the 4th forward kneading block unit in turn.Use multiple kneading block unit repeatedly can shear fully material, kneading block unit and threaded elements are arranged alternately simultaneously, the excessive temperature of shear strength can be avoided too high, prevent material from degrading, and ensure product quality.
The error angle of the kneading block in described 3rd forward kneading block unit and the 4th forward kneading block unit is 45 °, and the error angle of the kneading block in the described second reverse kneading block unit is 45 °, and the kneading block error angle in described neutral kneading block unit is 90 °.The neutral kneading block of 90 ° does not have conveying capacity, but can provide enough longitudinal shears and mixing, brings certain resistance to the conveying of material simultaneously, forms back pressure, promotes that material fully mixes, ensures product quality further.
Described vacuum exhaust section is provided with the 3rd reverse kneading block unit and the 7th forward threaded elements in turn.By reverse kneading block unit material disperseed and mix, and certain resistance is produced to the conveying of material, promoting that material fully mixes, improve exhaust efficiency.
Kneading block error angle in described the 3rd reverse kneading block unit is 45 °.The shear-mixed effect to material can be improved.
Described feeding section is provided with initial forward screwing element in turn, transition connects deep trouth forward threaded elements and deep trouth forward threaded elements.Facilitate charging, improve charging rate.
The utility model has the advantages that: without overflow phenomenon in the extruding of polypropylene functional agglomerate, decompose without transition shearing and material, good quality of product.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model embodiment;
1, feeding section, 2, fluxing zone, 3, to empty exhaust section, 4, mixing section, 5, vacuum exhaust section, 6, extruding zone, 7, first forward threaded elements, 8, first forward kneading block unit, 9, second forward threaded elements, 10, second forward kneading block unit, 11, first reverse kneading block unit, 12, 3rd forward threaded elements, 13, 3rd forward kneading block unit, 14, 4th forward threaded elements, 15, second reverse kneading block unit, 16, 5th forward threaded elements, 17, neutral kneading block unit, 18, 6th forward threaded elements, 19, 4th forward kneading block unit, 20, 3rd reverse kneading block unit, 21, 7th forward threaded elements, 22, initial forward threaded elements, 23, transition connects deep trouth forward threaded elements, 24, deep trouth forward threaded elements.
Detailed description of the invention
Embodiment:
Consult Fig. 1, for a kind of polypropylene functional agglomerate extruding machine with two screw rods engaging screw rod in the same way, along being fed to discharging direction, comprise feeding section 1, fluxing zone 2, to empty exhaust section 3, mixing section 4, vacuum exhaust section 5 and extruding zone 6, feeding section 1 is provided with initial forward screwing element 22 in turn, transition connects deep trouth forward threaded elements 23 and deep trouth forward threaded elements 24, fluxing zone 3 is provided with the first forward threaded elements 7 in turn, first forward kneading block unit 8 and the second forward threaded elements 9, to empty exhaust section 3 being provided with in turn the second forward kneading block unit 10, first reverse kneading block unit 11 and the 3rd forward threaded elements 12, wherein the length of the second forward kneading block unit 10 and the first reverse kneading block unit 11 is than being 1:1.Mixing section 4 is provided with the reverse kneading block unit 15 of the 3rd forward kneading block unit the 13, the 4th forward threaded elements 14, second, the 5th forward threaded elements 16, neutral kneading block unit 17, the 6th forward threaded elements 18, the 4th forward kneading block unit 19 in turn.Vacuum exhaust section 5 is provided with the 3rd reverse kneading block unit 20 and the 7th forward threaded elements 21 in turn.
The error angle of the kneading block in the first forward kneading block unit 8 is 30 °, and the error angle of the kneading block in the second forward kneading block unit 10 and the first reverse kneading block unit 11 is respectively 45 °.The error angle of the kneading block in the 3rd forward kneading block unit 13 and the 4th forward kneading block unit 19 is 45 °, and the error angle of the kneading block in the second reverse kneading block unit 15 is 45 °, and the kneading block error angle in neutral kneading block unit 17 is 90 °.Kneading block error angle in 3rd reverse kneading block unit 20 is 45 °.
Between the first forward threaded elements 7 on fluxing zone 2 and the second forward threaded elements 9, the first forward kneading block unit 8 is set, fully can mediate the material of conveying, thus accelerate the plasticizing process of material, error angle is that the kneading block of 30 ° both can be sheared material, accelerate the plastifying fusion of material, facilitate again the conveying of material.To empty exhaust section 3 being arranged length than the second identical forward kneading block unit 10 and the first reverse kneading block unit 11, be convenient to form high pressure at this position, make material can fully melting through fluxing zone, and Homogeneous phase mixing, error angle is that the kneading block of 45 ° can fully be sheared, and be partially formed resistance high pressure, thus avoid the non-infiltration phenomenon of filler that causes because shearing deficiency, stop the generation of overflow.
Mixing section 4 to be interlocked assembled arrangement by kneading block unit and threaded elements, enhance the mixed effect of material, error angle is the shear action of the kneading block of 45 ° is not very strong, and excessive shear can be avoided to form high temperature, prevent material from degrading, fully improve the uniformity of plasticizing.The neutral kneading block of 90 ° does not have conveying capacity, but can provide enough longitudinal shears and mixing, brings certain resistance to the conveying of material simultaneously, forms back pressure, promotes that material fully mixes, improves the quality of product further.
Above-listed detailed description is illustrating for one of the utility model possible embodiments, this embodiment is also not used to limit the scope of the claims of the present utility model, allly do not depart from the equivalence that the utility model does and implement or change, all should be contained in the scope of the claims of this case.
Claims (7)
1. polypropylene functional agglomerate extruding machine with two screw rods engaging screw rod in the same way, comprise feeding section, fluxing zone, to empty exhaust section, mixing section, vacuum exhaust section and extruding zone, it is characterized in that: on described fluxing zone, be provided with the first forward threaded elements, the first forward kneading block unit and the second forward threaded elements in turn, described to empty exhaust section being provided with in turn the second forward kneading block unit, the first reverse kneading block unit and the 3rd forward threaded elements, wherein the length of the second forward kneading block unit and the first reverse kneading block unit is than being 1:1.
2. a kind of polypropylene functional agglomerate according to claim 1 extruding machine with two screw rods engaging screw rod in the same way, it is characterized in that: the error angle of the kneading block in described first forward kneading block unit is 30 °, the error angle of the kneading block in the second forward kneading block unit and the first reverse kneading block unit is respectively 45 °.
3. a kind of polypropylene functional agglomerate according to claim 1 and 2 extruding machine with two screw rods engaging screw rod in the same way, is characterized in that: on described mixing section, be provided with the 3rd forward kneading block unit, the 4th forward threaded elements, the second reverse kneading block unit, the 5th forward threaded elements, neutral kneading block unit, the 6th forward threaded elements, the 4th forward kneading block unit in turn.
4. a kind of polypropylene functional agglomerate according to claim 3 extruding machine with two screw rods engaging screw rod in the same way, it is characterized in that: the error angle of the kneading block in described 3rd forward kneading block unit and the 4th forward kneading block unit is 45 °, the error angle of the kneading block in the described second reverse kneading block unit is 45 °, and the kneading block error angle in described neutral kneading block unit is 90 °.
5. a kind of polypropylene functional agglomerate according to claim 3 extruding machine with two screw rods engaging screw rod in the same way, is characterized in that: in described vacuum exhaust section, be provided with the 3rd reverse kneading block unit and the 7th forward threaded elements in turn.
6. a kind of polypropylene functional agglomerate according to claim 5 extruding machine with two screw rods engaging screw rod in the same way, is characterized in that: the kneading block error angle in the described the 3rd reverse kneading block unit is 45 °.
7. a kind of polypropylene functional agglomerate according to claim 3 extruding machine with two screw rods engaging screw rod in the same way, is characterized in that: on described feeding section, be provided with initial forward screwing element in turn, transition connects deep trouth forward threaded elements and deep trouth forward threaded elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964904.6U CN205219688U (en) | 2015-11-26 | 2015-11-26 | Polypropylene function is syntropy meshing double screw extruder screw rod for master batch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964904.6U CN205219688U (en) | 2015-11-26 | 2015-11-26 | Polypropylene function is syntropy meshing double screw extruder screw rod for master batch |
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| CN205219688U true CN205219688U (en) | 2016-05-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111000270A (en) * | 2019-12-27 | 2020-04-14 | 广州天地实业有限公司 | Spiral combination of double-shaft feed bulking machine |
| CN115160759A (en) * | 2022-07-26 | 2022-10-11 | 四川长虹智能制造技术有限公司 | Flame-retardant and chemical-resistant PC/PBT alloy material and preparation method and application thereof |
-
2015
- 2015-11-26 CN CN201520964904.6U patent/CN205219688U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111000270A (en) * | 2019-12-27 | 2020-04-14 | 广州天地实业有限公司 | Spiral combination of double-shaft feed bulking machine |
| CN115160759A (en) * | 2022-07-26 | 2022-10-11 | 四川长虹智能制造技术有限公司 | Flame-retardant and chemical-resistant PC/PBT alloy material and preparation method and application thereof |
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