CN103770231B - A kind of synergistic mixed method of biaxial tension deformation and device - Google Patents
A kind of synergistic mixed method of biaxial tension deformation and device Download PDFInfo
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- CN103770231B CN103770231B CN201410040808.2A CN201410040808A CN103770231B CN 103770231 B CN103770231 B CN 103770231B CN 201410040808 A CN201410040808 A CN 201410040808A CN 103770231 B CN103770231 B CN 103770231B
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Abstract
The invention discloses the synergistic mixed method of a kind of biaxial tension deformation and device.The material of the method does the flowing of periodically variable convergence and dive rgence along direction of rotation and axial flow direction in mixing arrangement, and material is subject to periodically variable compression and expansion, realizes the synergistic mixed process of biaxial tension deformation.First mixed cell of this device is primarily of armature spindle, unidirectional flow table, bidirectional guide dish, truncated cone-shaped inner chamber stator, tilted concaved fan sheet and oblique convex blade composition; In the truncated cone-shaped inner chamber of truncated cone-shaped inner chamber stator, armature spindle vertically at least interval have the trapezoid cross section groove of more than a group, often organize trapezoid cross section groove and be uniformly distributed multiple blade groove along armature spindle radial direction, often organize trapezoid cross section groove and be uniformly distributed multiple blade groove along armature spindle radial direction; Invention enhances the mass transfer in mixed process, diabatic process, there is the features such as mixing efficiency is high, good mixing property.
Description
Technical field
The present invention relates to a kind of macromolecular material mixed method and device, particularly relate to for by the synergistic macromolecular material mixed method of biaxial tension deformation and device.
Technical background
The material used in polymer material molding process is normally made up of different polymer, filler, auxiliary agent etc., and thus mixing is the only stage which must be passed by of polymer material molding processing.The mixing of macromolecular material is normally by forming compounding in continuous mixing device or batch-mixed device for each component.Continuous mixing device is generally by screw-type extruder, as double screw extruder, three screw rods and multi-screw extruder etc. have come; And step compounding process has mainly been come by banbury, the equipment such as machine of beginning to pratise.The mixing mechanism of these mixing arrangements be based upon shearing deformation basis on, that is in mixed process, material is mainly subject to the stress vertical with the direction of motion and deformation effect.In order to improve mixed effect, usually adopting and allowing material be subject to shearing force effect.Shearing force effect will cause following problem: (1) specific energy consumption is high, drive load large; (2) high shear forces produces a large amount of viscous dissipation heat thus causes melt temperature to raise, and material is degraded even thermal decomposition, makes the difficult control of temperature of material in process simultaneously; (3) because shear rate increases and melt temperature rising makes blend melt viscosity low, mixed effect is deteriorated; (4) particle may rotate to be cut in main flowing, and mixing dispersion effect reduces.
In order to improve dispersive mixing efficiency and improve mixed effect, at present the main way adopted mainly comprises: (1) by the additional field of force as Vibrational force field, ultrasonic wave, high-frequency electric field etc. make material be subject to combined stress effect; (2) screw-rod structure of development of new is as used wedge shape spiral shell rib, offers cone tank etc. on spiral shell rib simultaneously; (3) in mould She collect Lian ?diverging channel legs, material is compressed or expansion etc.These methods enhance the tensile deformation effect suffered by material in the mixed process based on shearing deformation, improve mixing efficiency and mixed effect, but material is still mainly subject to shear stress in forming process, be the plasticizing mixed process of shearing deformation domination.If the direction of motion of material when mixing can be made consistent with velocity gradient direction, that is material is mainly subject to tensile stress effect in mixed process, realize the mixed process of tensile deformation domination, will be conducive to improving dispersion mixing, the performance improving goods is had very important significance.
Summary of the invention
The object of the invention is to solve low based on the mixing efficiency of shearing deformation, to the composite mixed effect difference that viscosity differs greatly problem, there is provided a kind of biaxial tension deformation synergistic macromolecular material mixing dispersal device, to improve the mixing dispersion effect to macromolecular material.
Object of the present invention is achieved through the following technical solutions:
The synergistic mixed method of biaxial tension deformation: material does the flowing of periodically variable convergence and dive rgence along direction of rotation and axial flow direction in mixing arrangement, material is subject to periodically variable compression and expansion, realizes the synergistic mixed process of biaxial tension deformation.
Realize the synergistic mixing arrangement of biaxial tension deformation of described mixed method, connect to form successively primarily of drive system, dosage unit, the first mixed cell and the second mixed cell; Drive system is primarily of motor, armature spindle and reduction box composition, and motor is connected with armature spindle by reduction box, and armature spindle is cylindrical, and armature spindle is successively through dosage unit, the first mixed cell and the second mixed cell;
Described dosage unit is primarily of armature spindle, positioning sleeve, unidirectional flow table, cylindrical cavity stator, straight recessed blade and straight convex blade composition; Cylindrical cavity stator is arranged between positioning sleeve and unidirectional flow table, the cylindrical cavity of cylindrical cavity stator and stator excircle eccentricity, and eccentric throw is less than the difference of cylindrical cavity radius and armature spindle radius; In cylindrical cavity stator, armature spindle vertically at least interval have 2 groups of square-section grooves, often organize square-section groove and be uniformly distributed multiple blade groove along armature spindle radial direction; Straight recessed blade and straight convex blade are square-section, and straight recessed blade has rectangular recess, and straight convex blade is provided with rectangular preiection; Straight recessed blade and straight convex blade are disposed in blade groove successively;
Unidirectional flow table is provided with a material outlet; Feed unit is communicated with the first mixed cell by this material outlet;
Described first mixed cell is primarily of armature spindle, unidirectional flow table, bidirectional guide dish, truncated cone-shaped inner chamber stator, tilted concaved fan sheet and oblique convex blade composition; Truncated cone-shaped inner chamber stator is arranged between unidirectional flow table and bidirectional guide dish, the truncated cone-shaped inner chamber of truncated cone-shaped inner chamber stator and excircle eccentricity, and eccentric throw is less than the difference of truncated cone-shaped inner chamber stator truncated cone-shaped inner chamber small end radius and armature spindle radius; Truncated cone-shaped inner chamber small end is connected with unidirectional flow table; Tilted concaved fan sheet and oblique convex blade are trapezoid cross section, and tilted concaved fan sheet has rectangular recess, and oblique convex blade is provided with rectangular preiection; In the truncated cone-shaped inner chamber of truncated cone-shaped inner chamber stator, armature spindle vertically at least interval have the trapezoid cross section groove of more than a group, often organize trapezoid cross section groove and be uniformly distributed multiple blade groove along armature spindle radial direction, often organize trapezoid cross section groove and be uniformly distributed multiple blade groove along armature spindle radial direction;
Second mixed cell V is primarily of armature spindle, bidirectional guide dish, discharging lid, truncated cone-shaped inner chamber stator, tilted concaved fan sheet and oblique convex blade composition, and discharging covers and is provided with discharge gate; This truncated cone-shaped inner chamber stator is arranged between bidirectional guide dish and discharging lid; The truncated cone-shaped inner cavity taper direction of the truncated cone-shaped inner chamber stator in the second mixed cell and the first mixed cell is contrary, and other settings are identical with the first mixed cell; Bidirectional guide dish is provided with 2 material outlets; First mixed cell two-way circulates with the material of the second mixed cell and is communicated with by two material outlets.
Preferably, the cylindrical cavity of described cylindrical cavity stator and the eccentric throw of stator excircle eccentricity are the 1/8-4/5 of cylindrical cavity radius and armature spindle semidiameter.
Described square-section groove of often organizing is uniformly distributed 4 blade grooves along armature spindle radial direction; Two adjacent groups blade groove differs the phase angle of 45 °.
The described truncated cone-shaped inner chamber of truncated cone-shaped inner chamber stator and the eccentric throw of excircle eccentricity are the truncated cone-shaped inner chamber small end radius of truncated cone-shaped inner chamber stator and the 1/8-4/5 of armature spindle semidiameter.
Described trapezoid cross section groove of often organizing is uniformly distributed 4 blade grooves along armature spindle radial direction, and two adjacent groups blade groove differs the phase angle of 45 °.
Described first material outlet by the first mixed cell from the region diminished greatly and the second mixed cell volume from the large regional connectivity of little change, the second material outlet by the first mixed cell from the large region of little change and the second mixed cell volume from the regional connectivity diminished greatly.
Described armature spindle is respectively with the cylindrical of truncated cone-shaped inner chamber stator with the cylindrical of truncated cone-shaped inner chamber stator is concentric installs.
The present invention adopt there is truncated cone-shaped inner chamber hollow stator, be placed in bore of stator and with the cylindrical rotor axle of stator bias, be arranged in armature spindle radial square-section groove at least 2 group along the equally distributed blade of armature spindle circumferencial direction and arrange in stator both sides and form a mixed cell with the part such as the concentric flow guiding disc installed of stator.In this blade mixed cell, the eccentric throw of armature spindle and stator can change, and its value is greater than 0 and is less than the difference of stator truncated cone-shaped inner chamber small end radius and armature spindle radius; Stator inner surface, rotor outer surface, blade and two flow guiding discs define the space with certain geometrical shape.When armature spindle rotates, the ascending descending cyclically-varying again of volume in this space.When this spatial volume is changed from small to big (also can on the contrary), material enters this mixed cell from dosage unit or adjacent mixed cell, when this spatial volume from large to small time material be discharged this unit and enter into adjacent mixed cell, thus realize material and be subject to tensile stress effect along armature spindle direction of rotation; The taper direction of adjacent two mixed cell stator conical cavities is contrary, and material does convergence and dive rgence flowing between two mixed cells during axial flow, thus realizes being subject to tensile stress effect when material flows vertically.Above-mentioned two kinds of tensile stress effects superpose mutually, achieve the synergistic mixed process of biaxial tension deformation.
The present invention is compared with existing mixed method and device, and tool has the following advantages:
1, boundary updating decision under tensile deformation effect of the present invention, mixing efficiency improves;
2, tensile deformation effect of the present invention enhances mass transfer in mixed process, heat transfer, and capacity usage ratio is high, good mixing effect;
In the mixed process of 3, tensile deformation of the present invention domination, the temperature rise of material is little, and material thermal degradation and decomposing reduces;
4, apparatus of the present invention can be used for the mixing of the polymer composite system of viscosity great disparity, to material wide adaptability.
Accompanying drawing explanation
Fig. 1 is the structural representation of biaxial tension deformation synergy mixing arrangement
Fig. 2 is the structural representation of dosage unit in Fig. 1;
Fig. 3 is that the A-A of Fig. 2 is to sectional view;
Fig. 4 is the structural representation of straight recessed blade in Fig. 3;
Fig. 5 is the structural representation of straight convex blade in Fig. 2;
The B-B of Fig. 6 is to sectional view;
Fig. 7 is the first mixed cell structural representation in Fig. 1;
Fig. 8 is that the C-C of Fig. 7 is to sectional view
Fig. 9 is that the D-D of Fig. 6 is to sectional view;
Figure 10 is the structural representation of the tilted concaved fan sheet in Fig. 8;
Figure 11 is the structural representation of the oblique convex blade in Fig. 8;
Figure 12 second mixed cell structural representation;
Figure 13 is that the E-E of Figure 12 is to sectional view.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described further, but the scope of protection of present invention is not limited to the scope of embodiment statement.
Embodiment 1
As shown in Figure 1, the synergistic mixing arrangement of a kind of biaxial tension deformation, connects to form successively primarily of drive system I, dosage unit II, the first mixed cell III, the second mixed cell IV; Drive system I is primarily of motor, armature spindle 1 and reduction box composition, and motor is connected with armature spindle 1 by reduction box, for armature spindle provides necessary speed and torque; Armature spindle is installed with the output shaft of reduction box is concentric.Armature spindle 1 is cylindrical, and armature spindle 1 is successively through dosage unit II, the first mixed cell III and the second mixed cell IV.
As shown in Figure 2,3, dosage unit I forms jointly primarily of armature spindle 1, positioning sleeve 2, unidirectional flow table 3, cylindrical cavity stator 6, straight recessed blade 8, straight convex blade 9; Cylindrical cavity stator 6 is arranged between positioning sleeve 2 and unidirectional flow table 3, the cylindrical cavity of cylindrical cavity stator 6 and stator excircle eccentricity, eccentric distance e is less than the difference of cylindrical cavity radius and armature spindle radius, is preferably the 1/8-4/5 of cylindrical cavity radius and armature spindle semidiameter; In cylindrical cavity stator 6, armature spindle 1 vertically at least interval have 3 groups of square-section grooves, often organize square-section groove and be uniformly distributed multiple blade groove along armature spindle radial direction, be preferably four blade grooves, the end face of four blade grooves is coplanar, and adjacent two blade grooves differ the phase angle of 45 °; As shown in Figure 4,5, straight recessed blade 8 and straight convex blade 9 are square-section, and straight recessed blade 8 has rectangular recess, and straight convex blade 9 is provided with rectangular preiection; Straight recessed blade 8 and straight convex blade 9 are disposed in blade groove successively, and a cross section amounts to 2 straight recessed blades 8 and 2 straight convex blades 9.Armature spindle 1 is installed with the stator cylindrical of cylindrical cavity stator 6 is concentric.
When armature spindle 1 rotates, move back and forth because inner surface that vane tip is subject to stator retrains the square-section groove making blade can be disposed radially in the groove of square-section at armature spindle 1 a pair blade diametrically.Due to stator inner hole and excircle eccentricity, the enclosure space volume size formed by the endoporus of the external cylindrical surface of armature spindle 1, cylindrical cavity stator 6, straight recessed blade 8, straight convex blade 9, positioning sleeve 2, unidirectional flow table 3 when thus armature spindle 1 rotates is generating period change with the change in location of vane group in straight trough.
As indicated with 6, unidirectional flow table 3 is provided with a material outlet.During installation, feed unit II spatial volume is communicated with from the region (also can be region from large to small) that little change is large from the region that diminishes greatly with the first mixed cell III spatial volume by the circular arc material outlet on unidirectional flow table 3, and material can only flow into the first mixed cell III from feed unit II.
As shown in Figure 7,8, the first mixed cell III forms jointly primarily of armature spindle 1, unidirectional flow table 3, bidirectional guide dish 4, truncated cone-shaped inner chamber stator 7, tilted concaved fan sheet 10, oblique convex blade 11; Truncated cone-shaped inner chamber stator 7 is arranged between unidirectional flow table 3 and bidirectional guide dish 4, the truncated cone-shaped inner chamber of truncated cone-shaped inner chamber stator 7 and excircle eccentricity, eccentric distance e is less than the difference of truncated cone-shaped inner chamber stator 7 truncated cone-shaped inner chamber small end radius and armature spindle radius, is preferably the 1/8-4/5 of truncated cone-shaped inner chamber stator 7 truncated cone-shaped inner chamber small end radius and armature spindle semidiameter; Truncated cone-shaped inner chamber small end is connected with unidirectional flow table 3; As shown in Fig. 9,10, tilted concaved fan sheet 10 and oblique convex blade 11 are trapezoid cross section, and tilted concaved fan sheet 10 has rectangular recess, and oblique convex blade 11 is provided with rectangular preiection.In the truncated cone-shaped inner chamber of truncated cone-shaped inner chamber stator 7, armature spindle 1 vertically at least interval have the trapezoid cross section groove of more than a group, often organize trapezoid cross section groove and be uniformly distributed multiple blade groove along armature spindle radial direction, often organize trapezoid cross section groove and be uniformly distributed multiple blade groove along armature spindle radial direction, the end face of multiple blade groove is coplanar; Preferably often organize trapezoid cross section groove and be uniformly distributed 4 blade grooves along armature spindle radial direction, two adjacent groups blade groove differs the phase angle of 45 °; Armature spindle 1 is installed with the cylindrical of truncated cone-shaped inner chamber stator 7 is concentric.
Similar with feed unit I, the inner surface constraint being subject to stator at top due to tilted concaved fan sheet 10 or oblique convex blade 11 when armature spindle a pair blade rotor axle diametrically rotates makes blade can radial move back and forth along trapezoid cross section groove in the groove of trapezoid cross section.Armature spindle 1 is installed with the cylindrical of truncated cone-shaped inner chamber stator 7 is concentric.When armature spindle 1 rotates, the enclosure space volume size cyclically-varying formed by the external cylindrical surface of armature spindle 1, the inner chamber of truncated cone-shaped inner chamber stator 7, tilted concaved fan sheet 10, straight convex blade 11, unidirectional flow table 3, bidirectional guide dish 4.
As shown in Figure 12,13, the second mixed cell IV forms primarily of armature spindle 1, bidirectional guide dish 4, discharging lid 5, truncated cone-shaped inner chamber stator 7, tilted concaved fan sheet 10 and oblique convex blade 11, and discharging covers and is provided with discharge gate; This truncated cone-shaped inner chamber stator 7 is arranged between bidirectional guide dish 4 and discharging lid 5; The truncated cone-shaped inner cavity taper direction of the truncated cone-shaped inner chamber stator in the second mixed cell IV and the first mixed cell III is contrary, and other settings are identical with the first mixed cell.When armature spindle 1 rotates, the enclosure space volume size cyclically-varying formed by the external cylindrical surface of armature spindle 1, the endoporus of truncated cone-shaped inner chamber stator 7, tilted concaved fan sheet 10, straight convex blade 11, bidirectional guide dish 4, discharging lid 5.
As shown in Figure 9, bidirectional guide dish 4 is provided with 2 material outlets, and the first mixed cell two-way circulates with the material of the second mixed cell and is communicated with by two material outlets.Preferably the first material outlet 13 is by the first mixed cell III from the region diminished greatly and the second mixed cell IV volume from the large regional connectivity of little change, makes material flow into the second mixed cell IV from the first mixed cell III; Correspondingly, second material outlet 14 by the first mixed cell III from the large region of little change and the second mixed cell IV volume from the regional connectivity diminished greatly, make material flow into the first mixed cell III from the second mixed cell IV, thus realize material and circulate in two mixed cells.
Radially do the flowing of periodically variable convergence and dive rgence when material flows in same supply unit, be subject to the tensile deformation effect of radial variations; Because the taper direction of the bore of stator of two mixed cells is contrary, material makes convergence survey in a mixed cell, in another mixed cell, disperse flowing, and material is subject to axial tensile deformation effect.Two kinds of tensile deformation effects superpose mutually, form the synergistic mixed process of biaxial tension deformation.The material meeting mixing requirement is discharged from the discharge gate discharging lid 5.
Claims (7)
1. the synergistic mixing arrangement of biaxial tension deformation of mixed method, is characterized in that, connects to form successively primarily of drive system, dosage unit, the first mixed cell and the second mixed cell; Drive system is primarily of motor, armature spindle and reduction box composition, and motor is connected with armature spindle by reduction box, and armature spindle is cylindrical, and armature spindle is successively through dosage unit, the first mixed cell and the second mixed cell;
Described dosage unit is primarily of armature spindle, positioning sleeve, unidirectional flow table, cylindrical cavity stator, straight recessed blade and straight convex blade composition; Cylindrical cavity stator is arranged between positioning sleeve and unidirectional flow table, the cylindrical cavity of cylindrical cavity stator and stator excircle eccentricity, and eccentric throw is less than the difference of cylindrical cavity radius and armature spindle radius; In cylindrical cavity stator, armature spindle vertically at least interval have 2 groups of square-section grooves, often organize square-section groove and be uniformly distributed multiple blade groove along armature spindle radial direction; Straight recessed blade and straight convex blade are square-section, and straight recessed blade has rectangular recess, and straight convex blade is provided with rectangular preiection; Straight recessed blade and straight convex blade are disposed in blade groove successively;
Unidirectional flow table is provided with a material outlet, is 3 material outlet; Feed unit is communicated with the first mixed cell by the outlet of this 3 material;
Described first mixed cell is primarily of armature spindle, unidirectional flow table, bidirectional guide dish, truncated cone-shaped inner chamber stator, tilted concaved fan sheet and oblique convex blade composition; Truncated cone-shaped inner chamber stator is arranged between unidirectional flow table and bidirectional guide dish, the truncated cone-shaped inner chamber of truncated cone-shaped inner chamber stator and excircle eccentricity, and eccentric throw is less than the difference of truncated cone-shaped inner chamber stator truncated cone-shaped inner chamber small end radius and armature spindle radius; Truncated cone-shaped inner chamber small end is connected with unidirectional flow table; Tilted concaved fan sheet and oblique convex blade are trapezoid cross section, and tilted concaved fan sheet has rectangular recess, and oblique convex blade is provided with rectangular preiection; In the truncated cone-shaped inner chamber of truncated cone-shaped inner chamber stator, armature spindle vertically at least interval have the trapezoid cross section groove of more than a group, often organize trapezoid cross section groove and be uniformly distributed multiple blade groove along armature spindle radial direction, often organize trapezoid cross section groove and be uniformly distributed multiple blade groove along armature spindle radial direction;
Second mixed cell is primarily of armature spindle, bidirectional guide dish, discharging lid, truncated cone-shaped inner chamber stator, tilted concaved fan sheet and oblique convex blade composition, and discharging covers and is provided with discharge gate; This truncated cone-shaped inner chamber stator is arranged between bidirectional guide dish and discharging lid; The truncated cone-shaped inner cavity taper direction of the truncated cone-shaped inner chamber stator in the second mixed cell and the first mixed cell is contrary, and other settings are identical with the first mixed cell; Bidirectional guide dish is provided with 2 material outlets; First mixed cell two-way circulates with the material of the second mixed cell and is communicated with by two material outlets,
Material does the flowing of periodically variable convergence and dive rgence along direction of rotation and axial flow direction in mixing arrangement, and material is subject to periodically variable compression and expansion, realizes the synergistic mixed process of biaxial tension deformation.
2. the synergistic mixing arrangement of biaxial tension deformation according to claim 1, is characterized in that, the cylindrical cavity of described cylindrical cavity stator and the eccentric throw of stator excircle eccentricity are the 1/8-4/5 of cylindrical cavity radius and armature spindle semidiameter.
3. the synergistic mixing arrangement of biaxial tension deformation according to claim 1, is characterized in that, described square-section groove of often organizing is uniformly distributed 4 blade grooves along armature spindle radial direction; Two adjacent groups blade groove differs the phase angle of 45 °.
4. the synergistic mixing arrangement of biaxial tension deformation according to claim 1, it is characterized in that, the described truncated cone-shaped inner chamber of truncated cone-shaped inner chamber stator and the eccentric throw of excircle eccentricity are the truncated cone-shaped inner chamber small end radius of truncated cone-shaped inner chamber stator and the 1/8-4/5 of armature spindle semidiameter.
5. the synergistic mixing arrangement of biaxial tension deformation according to claim 1, is characterized in that, described trapezoid cross section groove of often organizing is uniformly distributed 4 blade grooves along armature spindle radial direction, and two adjacent groups blade groove differs the phase angle of 45 °.
6. the synergistic mixing arrangement of biaxial tension deformation according to claim 1, it is characterized in that, first material outlet by the first mixed cell from the region diminished greatly and the second mixed cell volume from the large regional connectivity of little change, the second material outlet by the first mixed cell from the large region of little change and the second mixed cell volume from the regional connectivity diminished greatly.
7. the synergistic mixing arrangement of biaxial tension deformation according to claim 1, is characterized in that, described armature spindle is respectively with the cylindrical of truncated cone-shaped inner chamber stator with the cylindrical of truncated cone-shaped inner chamber stator is concentric installs.
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| CN104057551A (en) * | 2014-06-20 | 2014-09-24 | 吴昊 | Internal mixer with excellent mixing effect |
| CN109927192B (en) * | 2017-11-23 | 2023-07-18 | 华南理工大学 | Method and device for cooperatively preparing ultrahigh-viscosity polymer blend |
| CN107914341A (en) * | 2017-12-06 | 2018-04-17 | 天津职业技术师范大学 | A kind of circulation kneading device of polymer alloy |
| CN109228220B (en) * | 2018-09-06 | 2023-09-05 | 华南理工大学 | Melt extrusion-flow/calendaring molding method and device for high-viscosity material |
| CN112140381B (en) * | 2019-11-04 | 2022-03-25 | 安徽艺高材料科技有限公司 | Plastic processing wavy compounding mechanism |
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