CN203650929U - Series disc-screw extruder with volume-changed different-diameter unequal-clearance screw grooves - Google Patents
Series disc-screw extruder with volume-changed different-diameter unequal-clearance screw grooves Download PDFInfo
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- CN203650929U CN203650929U CN201420005841.7U CN201420005841U CN203650929U CN 203650929 U CN203650929 U CN 203650929U CN 201420005841 U CN201420005841 U CN 201420005841U CN 203650929 U CN203650929 U CN 203650929U
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Abstract
The utility model relates to a series disc-screw extruder with volume-changed different-diameter unequal-clearance screw grooves. A feeding segment, a disc mixing segment I, a filler segment, a disc mixing segment II, an exhaust segment and an extrusion segment are sequentially connected; a material A enters from the feeding segment, and a material B enters from the filler segment and is mixed with the material A at the disc mixing segment II. The series disc-screw extruder is characterized in that the volume change of each screw groove formed from the feeding segment to the extrusion segment and the specific volume change of the material in a melting process keep consistent. According to the series disc-screw extruder, the volume change of each screw groove formed from the feeding segment to the extrusion segment and the specific volume change of the material in the melting process keep consistent so as to achieve the purposes of ensuring plasticization and enhancing mixing.
Description
Technical field
The utility model relates to a kind of series connected type grinding disc extruder, relates to particularly a kind of reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not.Be specially adapted to produce the unmanageable special high molecule alloy material of other screw extruder and high fill material.
Background technology
Mixing is requisite technical process in Polymer Processing, in recent years, along with the development of polyblend, modification and enhancing technique, the kind and the quantity that join filler in polymer are also more and more many, and the requirement of the technology and device to mixed refining process is more and more higher.Therefore, how to improve mixing, by these uniform filling be distributed in polymer melt and go, just become an important topic in Polymer Processing.
Most popular polymer continuous mixing is equipped for equidirectional parallel double-screw extruder in the world at present, but because its processing mechanism is special, complex structure, make the critical pieces such as screw rod, machine barrel, thrust bearing group, transmission device more more complex than single screw extrusion machine, thereby cost is also quite expensive, especially the strength and stiffness of screw mandrel are subject to the restriction of two screw rods centre-to-centre spacing, therefore can not transmit excessive moment of torsion, these drawbacks limit the application of double screw extruder in high viscosity, high fill material mixed refining process.
For this reason, in succession there is in recent years new mixing equipment of a great variety, to adapt to the requirement of different blended sweetening process, to meet the needs of polymer mixed refining process.Chinese patent (92108894.9) discloses a kind of continuous kneader that can produce to all materials suitable shearing force, multiple Moving plates are installed on screw rod rotating shaft, projection and the recess of the radiated entends replacing at the two sides of each Moving plate formation circumferencial direction, the coaxial price fixing relative with this Moving plate is installed on machine barrel, on price fixing, be along the circumferential direction also alternately distributed projection and the recess of radiated entends, because being radiation direction, above-mentioned projection and recess tilt, so be transported to Moving plate excircle direction between material clutch plate and price fixing, be transported to again center position between Moving plate opposition side and price fixing.Meanwhile, for making material be subject to compression and shear action uniformly, the degree of depth of Moving plate and price fixing recess is pressed apart from the proportional increase of screw shaft centre distance.Chinese patent (03266015.4) discloses the high continuous mixing equipment of filling rubber/plastic raw materials of a kind of applicable processing, forms mixing unit, and can need to be combined according to processing by the price fixing with sipe, Moving plate and transition spiral shell piece.But above disk extruding machine still has the following disadvantages: the variation of each functional section screw rod (comprising Moving plate excircle screw thread) external diameter and spiral groove depth does not clearly state; Whether uniformity does not clearly state in gap between all price fixings and Moving plate; Above-mentioned defect causes the variation of the variation to extruding zone screw channel volume and material melting process specific volume from extruder feeding section inconsistent, therefore make filler can not be evenly distributed in polymeric matrix, be difficult to prepare the composite of high-quality, affect its mixing behavior and application.
Summary of the invention
The utility model has designed a kind of reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not, the technical problem of its solution is in polymer calendering process process, filler can not be distributed in polymeric matrix equably, thus the performance of the composite of impact preparation.
In order to solve the technical problem of above-mentioned existence, the utility model has adopted following scheme:
A kind of reducing the series connected type grinding disc extruder of gap screw channel volume-variation such as not, its feeding section, mill mixing section I, packing section, mill mixing section II, exhaust section and extruding zone connect successively, material A enters from feeding section, material B enters from packing section, and carry out mixingly in mill mixing section II and material A, it is characterized in that: feeding section to extruding zone forms the variation of each screw channel volume and the variation of material melting process specific volume is consistent.
Further, mill mixing section I comprises Moving plate machine barrel (9), price fixing machine barrel (10), the first price fixing group (111), the first Moving plate group (151) and spiral shell piece (12), spiral shell piece (12) and the first Moving plate group (151) inner ring are all connected on mandrel (1), the first price fixing group (111) outer ring is fixedly connected with price fixing machine barrel (10), the first Moving plate group (151) outer ring is provided with Moving plate machine barrel (9), each Moving plate of each price fixing of the first price fixing group (111) and the first Moving plate group (151) forms jagged alternate configurations, each price fixing matches with a spiral shell piece (12) respectively, the gap forming between each price fixing and each Moving plate is along extruding direction descending homogenising successively, the groove of each price fixing and each Moving plate end face quantitatively reduces successively along extruding direction, in the degree of depth, shoal successively and reduce successively on width.
Further, mill mixing section II comprises Moving plate machine barrel, price fixing machine barrel, the second price fixing group (112), the second Moving plate group (152) and spiral shell piece, spiral shell piece and the second Moving plate group (152) inner ring are all connected on mandrel (1), the second price fixing group (112) outer ring is fixedly connected with price fixing machine barrel, the second Moving plate group (152) outer ring is provided with Moving plate machine barrel, each Moving plate of each price fixing of the second price fixing group (112) and the second Moving plate group (152) forms jagged alternate configurations, each price fixing matches with a spiral shell piece respectively, the gap forming between each price fixing and each Moving plate is along extruding direction descending homogenising successively, the groove of each price fixing and each Moving plate end face quantitatively reduces successively along extruding direction, in the degree of depth, shoal successively and reduce successively on width.
Further, the each price fixing in mill mixing section I and mill mixing section II and the gap length between each Moving plate can be adjustable, meet different materials and processing technology requirement by the convenient adjusting of guiding mechanism.
Further, packing section between mill mixing section I and mill mixing section II comprises filler machine barrel (14) and filler Moving plate (13), filler Moving plate (13) is arranged in filler machine barrel (14), filler Moving plate (13) is connected on mandrel (1), on filler machine barrel (14), be also provided with charge door, mill mixing section I completes mixing material to be mixed with another kind of material in packing section, and the external diameter of filler Moving plate (13) and spiral groove depth are along extruding direction descending homogenising successively.
Further, feeding section comprises reinforced screw rod (6) and reinforced machine barrel (8), reinforced screw rod (6) is arranged in reinforced machine barrel (8), reinforced screw rod (6) is connected on mandrel (1), on reinforced machine barrel (8), be also provided with charge door, the external diameter of reinforced screw rod (6) and spiral groove depth are along extruding direction descending homogenising successively.
Further, exhaust section comprises devolatilizing barrel (16) and exhaust Moving plate (17), exhaust Moving plate (17) is arranged in devolatilizing barrel (16), exhaust Moving plate (17) is connected on mandrel (1), devolatilizing barrel (16) is provided with steam vent, and the external diameter of exhaust Moving plate (17) and spiral groove depth are along extruding direction descending homogenising successively.
Further, extruding zone comprises extruder barrel (18) and extrusion screw rod (19), extrusion screw rod (19) is arranged in extruder barrel (18), extruder barrel (18) one end is connected with head (20), it is upper that extrusion screw rod (19) is connected to mandrel (1), and the external diameter of extrusion screw rod (19) and spiral groove depth are along extruding direction descending homogenising successively.
Further, feeding section, mill mixing section I, packing section, mill mixing section II, exhaust section have through hole and are fixed by pull bar (7).
Further, mandrel (1), by drive unit (2) driven rotary, is equipped with two semilunes and adjusts pad (4) between mandrel (1) and axle sleeve (3), and adjustment pad (4) periphery is surrounded by adapter sleeve (5) and circumferentially fixes.
This reducing series connected type grinding disc extruder of gap screw channel volume-variation such as or not compared with traditional disc extruder, has following beneficial effect:
(1) in the utility model, feeding section to extruding zone forms the variation of each screw channel volume and the variation of material melting process specific volume is consistent, and guarantees plasticizing and strengthens mixing object to reach.
(2) in the utility model, the convenient adjusting of guiding mechanism can be passed through in the gap between price fixing and Moving plate, thereby meets different materials and processing technology requirement.
Accompanying drawing explanation
Fig. 1: the utility model reducing the structural representation of the series connected type grinding disc extruder of gap screw channel volume-variation such as not;
Fig. 2: when the different Moving plate surface groove degree of depth, according to the utility model reducing not etc. the Dispersed Phase Size of the standby polystyrene/acrylic acid/ferriferrous oxide composite material of the series connected type grinding disc extrusion mechanism of gap screw channel volume-variation change;
Fig. 3: when different Moving plate surface groove quantity, according to the utility model reducing not etc. the Dispersed Phase Size of the standby polystyrene/acrylic acid/ferriferrous oxide composite material of the series connected type grinding disc extrusion mechanism of gap screw channel volume-variation change;
Fig. 4: when different Moving plate surface groove width, according to the utility model reducing not etc. the Dispersed Phase Size of the standby polystyrene/acrylic acid/ferriferrous oxide composite material of the series connected type grinding disc extrusion mechanism of gap screw channel volume-variation change;
Fig. 5: the utility model reducing the mandrel end structure schematic diagram of the series connected type grinding disc extruder of gap screw channel volume-variation such as not;
Fig. 6: the utility model reducing the reinforced screw-rod structure schematic diagram of series connected type grinding disc extruder of gap screw channel volume-variation such as not.
Description of reference numerals:
A-extruding zone; B-exhaust section; C-mill mixing section II; D-packing section; E-mill mixing section I; F-feeding section; 1-mandrel; 2-drive unit; 3-axle sleeve; 4-adjustment pad; 5-adapter sleeve; 6-reinforced screw rod; 7-pull bar; 8-reinforced machine barrel; 9-Moving plate machine barrel; 10-price fixing machine barrel; The 111-the first price fixing group; The 112-the second price fixing group; 12-spiral shell piece; 13-filler Moving plate; 14-filler machine barrel; The 151-the first Moving plate group; The 152-the second Moving plate group; 16-devolatilizing barrel; 17-exhaust Moving plate; 18-extruder barrel; 19-extrusion screw rod; 20-head.
The specific embodiment
Below in conjunction with Fig. 1 to Fig. 6, the utility model is described further:
As shown in Figure 1, mandrel 1 is driven by drive unit 2, and reinforced screw rod 6, the first Moving plate group 151, spiral shell piece 12, filler Moving plate 13, the second Moving plate group 152, exhaust Moving plate 17 and extrusion screw rod 19 are installed on mandrel 1 successively.Machine barrel adopts fabricated structure, between reinforced machine barrel 8, Moving plate machine barrel 9, price fixing machine barrel 10, filler machine barrel 14, devolatilizing barrel 16 and extruder barrel 18, is connected by pull bar 7.
Polymer body material is through reinforced screw rod 6, rely on the rubbing action on reinforced machine barrel 8 inwalls and reinforced screw rod 6 surfaces to be fed forward, in gap between the first Moving plate group 151 and the first price fixing group 111, be subject to shearing, fragmentation, complete the processes such as melting, mixing and melt Conveying.Flowing of the first Moving plate group 151 and the first price fixing group 111 interior materials is made up of three parts: the material in the gap, right side of (I) first Moving plate group 151 is dispersed mobile to the first Moving plate group 151 edges; The material of (II) first Moving plate group 151 edges is made axial flow along this place's screw channel; Material in the gap, left side of (III) first Moving plate group 151 is done convergence to the first Moving plate Zu151 center and is flowed.The rest may be inferred, forms dispersing of material in mill workspace, and------convergence---is axially carried---and is dispersed in axially conveying ... flow.Material mixes and mixing plasticizing through overcompression, dispersion in mill mixing section I, reach viscous state, now filler is joined in the polymer body material of melting through filler Moving plate 13, in mill mixing section II, continue the mixing plasticizing through mill, make filler can be evenly distributed to polymeric matrix inside.The second Moving plate group 152 in mill mixing section II and the second price fixing group 112 structures are identical with the first price fixing group 111 with operation principle and the first Moving plate group 151.
Then under higher temperature and pressure, material, through exhaust Moving plate 17, is discharged the gas wrapping up in melt or the volatile matter of having vaporized, and finally by compression and the homogenizing of crossing extrusion screw rod 19, level pressure is delivered to head 20 runner extrusion moldings quantitatively continuously.
For the variation that guarantees the variation to extruding zone screw channel volume and material melting process specific volume from feeding section is consistent, direction descending homogenising is successively extruded on the each price fixing in reinforced screw rod 6, mill mixing section I and the mill mixing section II of the series connected type grinding disc extruder the utility model proposes and edge, the gap between each Moving plate; Each price fixing in mill mixing section I and mill mixing section II and the groove of each Moving plate end face quantitatively reduce successively, shoal successively and reduce successively on width in the degree of depth along extruding direction, be convenient to control the detrusion total amount standing with adjustment material, improve mixing.
Abrasive disk space
during for 1.2mm and 3.2mm, polystyrene/acrylic acid/ferriferrous oxide composite material that series connected type grinding disc extrusion mechanism is standby, along with reducing of abrasive disk space, dispersed phase particles not only stands larger shear action, also be subject to larger squeezing action simultaneously, therefore the particle diameter of dispersed phase particles is corresponding reduces, and mixing improves greatly.
When Fig. 2-Fig. 4 is respectively the different Moving plate surface groove degree of depth, quantity and width, the Dispersed Phase Size of the standby polystyrene/acrylic acid/ferriferrous oxide composite material of series connected type grinding disc extrusion mechanism changes, visible reducing along with the Moving plate surface groove degree of depth, quantity and width, the particle diameter of dispersed phase particles is corresponding reducing also, thereby realize good melting effect.
By Moving plate and the spiral shell piece 12 of different-thickness in mill mixing section I and mill mixing section II are set, make the each price fixing in above-mentioned mill mixing section I and mill mixing section II and the gap between each Moving plate along extruding direction descending homogenising successively, and can pass through the convenient adjusting of guiding mechanism, thereby meet different materials and processing technology needs.
As shown in Figure 5, two semilunes are housed between mandrel 1 and axle sleeve 3 and adjust pad 4, adjustment pad 4 can design a series of thickness and meet different process requirement, and its periphery is surrounded by adapter sleeve 5 and circumferentially fixes.
In order to meet high moment of torsion, high-power requirement of extruding, reinforced screw rod 6 adopts deep trouth, major diameter design, not only can strengthen rigidity and the intensity of screw rod, but also can improve significantly output.
As shown in Figure 6, reinforced screw rod 6 comprises two parts: I part screw channel etc. are dark; II part spiral groove depth shoals gradually, with smooth and easy the carrying out that guarantees to feed in raw material.
By reference to the accompanying drawings the utility model is carried out to exemplary description above; obvious realization of the present utility model is not subject to the restrictions described above; as long as the various improvement that adopted method design of the present utility model and technical scheme to carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all in protection domain of the present utility model.
Claims (10)
1. the reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not, its feeding section, mill mixing section I, packing section, mill mixing section II, exhaust section and extruding zone connect successively, material A enters from feeding section, material B enters from packing section, and carry out mixingly in mill mixing section II and material A, it is characterized in that: feeding section to extruding zone forms the variation of each screw channel volume and the variation of material melting process specific volume is consistent.
2. the reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not according to claim 1, it is characterized in that: mill mixing section I comprises Moving plate machine barrel (9), price fixing machine barrel (10), the first price fixing group (111), the first Moving plate group (151) and spiral shell piece (12), spiral shell piece (12) and the first Moving plate group (151) inner ring are all connected on mandrel (1), the first price fixing group (111) outer ring is fixedly connected with price fixing machine barrel (10), the first Moving plate group (151) outer ring is provided with Moving plate machine barrel (9), each Moving plate of each price fixing of the first price fixing group (111) and the first Moving plate group (151) forms jagged alternate configurations, each price fixing matches with a spiral shell piece (12) respectively, the gap forming between each price fixing and each Moving plate is along extruding direction descending homogenising successively, the groove of each price fixing and each Moving plate end face quantitatively reduces successively, shoals successively and reduce successively on width in the degree of depth along extruding direction.
3. the reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not according to claim 1, it is characterized in that: mill mixing section II comprises Moving plate machine barrel, price fixing machine barrel, the second price fixing group (112), the second Moving plate group (152) and spiral shell piece, spiral shell piece and the second Moving plate group (152) inner ring are all connected on mandrel (1), the second price fixing group (112) outer ring is fixedly connected with price fixing machine barrel, the second Moving plate group (152) outer ring is provided with Moving plate machine barrel, each Moving plate of each price fixing of the second price fixing group (112) and the second Moving plate group (152) forms jagged alternate configurations, each price fixing matches with a spiral shell piece respectively, the gap forming between each price fixing and each Moving plate is along extruding direction descending homogenising successively, the groove of each price fixing and each Moving plate end face quantitatively reduces successively along extruding direction, in the degree of depth, shoal successively and reduce successively on width.
4. according to the reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not described in any one in claim 1-3, it is characterized in that: the each price fixing in mill mixing section I and mill mixing section II and the gap length between each Moving plate can be adjustable, meet different materials and processing technology requirement by the convenient adjusting of guiding mechanism.
5. the reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not according to claim 1, it is characterized in that: the packing section between mill mixing section I and mill mixing section II comprises filler machine barrel (14) and filler Moving plate (13), filler Moving plate (13) is arranged in filler machine barrel (14), filler Moving plate (13) is connected on mandrel (1), on filler machine barrel (14), be also provided with charge door, mill mixing section I completes mixing material to be mixed with another kind of material in packing section, the external diameter of filler Moving plate (13) and spiral groove depth are along extruding direction descending homogenising successively.
6. the reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not according to claim 1, it is characterized in that: feeding section comprises reinforced screw rod (6) and reinforced machine barrel (8), reinforced screw rod (6) is arranged in reinforced machine barrel (8), reinforced screw rod (6) is connected on mandrel (1), on reinforced machine barrel (8), be also provided with charge door, the external diameter of reinforced screw rod (6) and spiral groove depth are along extruding direction descending homogenising successively.
7. the reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not according to claim 1, it is characterized in that: exhaust section comprises devolatilizing barrel (16) and exhaust Moving plate (17), exhaust Moving plate (17) is arranged in devolatilizing barrel (16), exhaust Moving plate (17) is connected on mandrel (1), devolatilizing barrel (16) is provided with steam vent, and the external diameter of exhaust Moving plate (17) and spiral groove depth are along extruding direction descending homogenising successively.
8. the reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not according to claim 1, it is characterized in that: extruding zone comprises extruder barrel (18) and extrusion screw rod (19), extrusion screw rod (19) is arranged in extruder barrel (18), extruder barrel (18) one end is connected with head (20), it is upper that extrusion screw rod (19) is connected to mandrel (1), and the external diameter of extrusion screw rod (19) and spiral groove depth are along extruding direction descending homogenising successively.
9. the reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not according to claim 1, is characterized in that: feeding section, mill mixing section I, packing section, mill mixing section II, exhaust section have through hole and be fixed by pull bar (7).
10. according to the reducing series connected type grinding disc extruder of gap screw channel volume-variation such as not described in any one in claim 1,2,3,5,6,7,8 or 9, it is characterized in that: mandrel (1) is by drive unit (2) driven rotary, two semilunes are housed between mandrel (1) and axle sleeve (3) and adjust pad (4), adjustment pad (4) periphery is surrounded by adapter sleeve (5) and circumferentially fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420005841.7U CN203650929U (en) | 2014-01-06 | 2014-01-06 | Series disc-screw extruder with volume-changed different-diameter unequal-clearance screw grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420005841.7U CN203650929U (en) | 2014-01-06 | 2014-01-06 | Series disc-screw extruder with volume-changed different-diameter unequal-clearance screw grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203650929U true CN203650929U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420005841.7U Expired - Fee Related CN203650929U (en) | 2014-01-06 | 2014-01-06 | Series disc-screw extruder with volume-changed different-diameter unequal-clearance screw grooves |
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| Country | Link |
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| CN (1) | CN203650929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103770312A (en) * | 2014-01-06 | 2014-05-07 | 北京化工大学 | Series disc extruder with different diameters, unequal clearances and spiral groove volume change |
| CN105346051A (en) * | 2015-10-15 | 2016-02-24 | 顺德职业技术学院 | Mixing extruder combining threaded rod with multiple horizontal worm gears |
-
2014
- 2014-01-06 CN CN201420005841.7U patent/CN203650929U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103770312A (en) * | 2014-01-06 | 2014-05-07 | 北京化工大学 | Series disc extruder with different diameters, unequal clearances and spiral groove volume change |
| CN103770312B (en) * | 2014-01-06 | 2016-03-30 | 北京化工大学 | The series millstone extruder of a kind of reducing gap screw channel volume change such as not |
| CN105346051A (en) * | 2015-10-15 | 2016-02-24 | 顺德职业技术学院 | Mixing extruder combining threaded rod with multiple horizontal worm gears |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20220106 |