CN110315735A - Based on oval cross section and the periodically variable plasticizing rotor of lift angle - Google Patents
Based on oval cross section and the periodically variable plasticizing rotor of lift angle Download PDFInfo
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- CN110315735A CN110315735A CN201910410253.9A CN201910410253A CN110315735A CN 110315735 A CN110315735 A CN 110315735A CN 201910410253 A CN201910410253 A CN 201910410253A CN 110315735 A CN110315735 A CN 110315735A
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- 239000000463 material Substances 0.000 claims description 23
- 230000008859 change Effects 0.000 claims description 15
- 230000007423 decrease Effects 0.000 claims description 12
- 239000004033 plastic Substances 0.000 abstract description 48
- 229920003023 plastic Polymers 0.000 abstract description 48
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 5
- 230000021615 conjugation Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
- B29C48/615—Threads having varying helix angles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses one kind to be based on oval cross section and the periodically variable plasticizing rotor of lift angle, including 1 or 2 roots rotors, the every rotor includes rotor functional structure, the rotor functional structure includes conveying section, fluxing zone, vacuum zone, secondary plasticizing section and homogenizing zone, and the conveying section, fluxing zone, vacuum zone, secondary plasticizing section and the corresponding helical structure of homogenizing zone are different in the angle of the helix angle of axial any position.A kind of completely new plastics of the invention are plasticized rotor, and the radial section of rotor is ellipse, axial screw lift angle mechanical periodicity, when realizing that plastics are plasticized in the rotor, volume alternately changes, and melt generates stretching/compressing effect, realizes that with draft flowing deformation be leading plastics plasticizing process.
Description
Technical field
The present invention relates to plastic product production equipment fields, particularly relate to a kind of based on oval cross section and lift angle week
The plasticizing rotor of phase property variation.
Background technique
During plastic products machine-shaping, deployed powdery or particular plastics are fed into machine barrel first, so
It conveyed, dispersed, compressed and is plasticized by the screw rod in machine barrel afterwards, under the assistance of outside heating, the plastics in machine barrel are by solid
State becomes high-temperature molten-state melt.Melt passes through shaper, can form product of different shapes.In this serial procedures
In, the structure of screw rod determines the conveying of plastics, dispersion, and compression and plasticizing, the i.e. construction of screw rod determine the object of plastic products
Rationality energy, appearance and production yields.Helix angle of the screw rod in device of plastic processing in same functional section section has no at present
Variation, causes plastics plasticizing process dullness bad, and dispersion is simple uneven.
In actual production, the unconverted screw rod of helix angle in this same functional section section has the disadvantage that 1, consolidates
Fixed helix angle causes Plastic dispersion ability limited, and dispersing uniformity is bad.2, plasticizing capacity is weak, needs a large amount of external heat
Energy or longer draw ratio can just be such that plastics are plasticized.3, the abundant solution that cannot achieve high molecular material strand is tangled, thus
The physical property for promoting plastic products is had any problem.
The present invention devises a kind of plasticizing rotor based on oval cross section and periodical lift angle variation, and rotor conjugation is incorgruous outer
When overturning is dynamic, while plastics entirety positive conveyance, because rotor is all changing per flashy helix angle, when lift angle becomes larger
When, spiral sump volume increases, and the effect stretched is presented in plastics, and when lift angle becomes smaller, the effect of compression is presented in helicla flute volume-diminished
Fruit.Plastics continuous stretching/compressing between machine barrel and rotor alternately changes, so that melt is plasticized more under the conditions of draft flowing deformation
Good, dispersion is more evenly.To promote plastic products physical property, production cost is reduced.
Summary of the invention
To solve the problems mentioned above in the background art, the purpose of the present invention is to provide one kind based on oval cross section and
The periodically variable plasticizing rotor of lift angle.
To achieve the above object, the technical scheme adopted by the invention is as follows:
The present invention provides one kind to be based on oval cross section and the periodically variable plasticizing rotor of lift angle, including 1 or 2 turns
Son, the every rotor include rotor functional structure, and the rotor functional structure includes conveying section, fluxing zone, vacuum zone, secondary
Fluxing zone and homogenizing zone, the conveying section, fluxing zone, vacuum zone, secondary plasticizing section and the corresponding helical structure of homogenizing zone are in axis
It is different to the angle of the helix angle of any position.
In above-mentioned technical proposal, the helical structure of the conveying section, vacuum zone and homogenizing zone is transporting direction along material
The helix angle of respective bins axial direction is gradually successively decreased, and the helical structure of the fluxing zone and secondary plasticizing section is transported along material
The helix angle of the respective bins axial direction in direction periodically alternately changes.
In above-mentioned technical proposal, the helical structure of the conveying section, vacuum zone and homogenizing zone is transporting direction along material
The helix angle of respective bins axial direction degree is gradually successively decreased from 90 degree to 0；Wherein, helix angle is not equal to 90 degree and 0 degree.
In above-mentioned technical proposal, the helical structure of the fluxing zone and secondary plasticizing section is transporting the corresponding of direction along material
The helix angle of section axial direction is decremented to 0 degree of periodical alternately variation or fluxing zone for being incremented to 90 degree again from 90 degree
90 degree are incremented to from 0 degree in the helix angle for the respective bins axial direction for transporting direction along material with the helical structure of secondary plasticizing section
It is decremented to 0 degree of periodical alternately variation again；Wherein, helix angle is not equal to 90 degree and 0 degree.
In above-mentioned technical proposal, the conveying section, fluxing zone, vacuum zone, secondary plasticizing section and the corresponding spiral of homogenizing zone
Cross-sectional shape of the structure in axial any position is ellipse.
In above-mentioned technical proposal, the rotor functional structure outer diameter is along axial equalization or successively successively decreases.
In above-mentioned technical proposal, the every rotor further includes rotor drive part and slave part, the rotor driving
Part and slave part set up separately at the both ends of rotor functional structure.
In above-mentioned technical proposal, when the rotor is two, corresponding conveying section, plasticizing on one of rotor
Corresponding conveying section, fluxing zone, vacuum zone, secondary modeling on section, vacuum zone, secondary plasticizing section and homogenizing zone and another roots rotor
Change section and homogenizing zone and mutually corresponds incorgruous engagement each other；
The cross sectional shape of screw rod functional structure on two rotors any position in the axial direction is that size is identical
And ellipse tangent to each other.
In above-mentioned technical proposal, the central point of the cross section of every roots rotor axial direction any position and the rotary shaft of rotor itself
Line is coincided or is deviated.
Compared with prior art, the beneficial effects of the present invention are:
When the rotation of rotor or two rotors conjugation it is incorgruous turn up rotate when, while plastics entirety positive conveyance,
For machine barrel and plastic melt, rotor is all changing per flashy helix angle: when the spiral of rotor helical-screw structure
When lift angle is in change trend, spiral sump volume of rotor helical-screw structure is increased at this, and the effect stretched is presented in plastics；When rotor spiral shell
The helix angle of rotation structure is in when becoming smaller trend, and the helicla flute volume-diminished of helical structure, is presented the effect of compression at the rotor.
Plastics continuous stretching/compressing between machine barrel and rotor alternately changes, so that melt is plasticized more preferably under the conditions of draft flowing deformation,
Dispersion is more evenly.To promote plastic products physical property, production cost is reduced.
A kind of completely new plastics of the invention are plasticized rotor, and the radial section of rotor is ellipse, axial screw lift angle
Mechanical periodicity, when realizing that plastics are plasticized in the rotor, volume alternately changes, and melt generates stretching/compressing effect, realizes to stretch
Rheology is leading plastics plasticizing process.
The innovation of the invention consists in that: the rotor functional structure of rotor (including conveying section, fluxing zone, vacuum zone, secondary modeling
Change section and homogenizing zone) helical structure be different in the angle of the helix angle of axial any position, when rotor helical-screw structure
Helix angle be in change trend when, at this rotor helical-screw structure spiral sump volume increase, plastics present stretch effect；When
The helix angle of rotor helical-screw structure is in when becoming smaller trend, and the helicla flute volume-diminished of helical structure, is presented compression at the rotor
Effect.Plastics continuous stretching/compressing between machine barrel and rotor alternately changes, so that melt is moulded under the conditions of draft flowing deformation
Change more preferably, dispersion is more evenly；To promote plastic products physical property, production cost is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first embodiment of the invention；
Fig. 1 a is the sectional view in the direction A-A in Fig. 1；
Fig. 2 is the structural schematic diagram of second of embodiment of the invention；
Fig. 2 a is the sectional view in the direction B-B in Fig. 2；
Fig. 3 is the structural schematic diagram of the third embodiment of the invention；
Fig. 4 is the structural schematic diagram of the 4th kind of embodiment of the invention；
Fig. 5 is the structural schematic diagram of the practical application example of the first embodiment；
Fig. 6 is the structural schematic diagram of the practical application example 1 of second of embodiment；
Fig. 7 is the structural schematic diagram of the practical application example of the third embodiment；
Fig. 8 is the structural schematic diagram of the practical application example of the 4th kind of embodiment；
Fig. 9 is the structural schematic diagram of the practical application example 2 of second of embodiment；
Description of symbols:
100, rotor functional structure；200, rotor drive part；300, slave part；
1, conveying section；2, fluxing zone；3, vacuum zone；4, secondary plasticizing section；5, homogenizing zone.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
The drawings and specific embodiments, how the present invention is further explained implements.
In the prior art, " helix angle " of helical structure is commonly defined as: on central diameter cylindrical surface, the tangent line of helix
With the angle of vertical spin bobbin thread plane.
The present invention provides one kind to be based on oval cross section and the periodically variable plasticizing rotor of lift angle, including 1 or 2 turns
Son, the every rotor include rotor functional structure 100, and the rotor functional structure 100 includes conveying section 1, fluxing zone 2, true
Dead band 3, secondary plasticizing section 4 and homogenizing zone 5, the conveying section 1, fluxing zone 2, vacuum zone 3, secondary plasticizing section 4 and homogenizing zone 5 are right
The helical structure answered is different in the angle of the helix angle of axial any position.
In the present invention, the helical structure of the conveying section 1, vacuum zone 3 and homogenizing zone 5 is transporting the corresponding of direction along material
The helix angle of section axial direction is gradually successively decreased, and the helical structure of the fluxing zone 2 and secondary plasticizing section 4 is along the material side of transporting
To respective bins axial direction helix angle periodically alternately change.Further, the conveying section 1, vacuum zone 3 and homogenizing
The helical structure of section 5 degree gradually successively decreases from 90 degree to 0 in the helix angle for the respective bins axial direction for transporting direction along material.It is described
Fluxing zone 2 and the helical structure of secondary plasticizing section 4 the respective bins axial direction that direction is transported along material helix angle from 90 degree
It is decremented to 0 degree of periodical alternately helical structure of variation or the fluxing zone 2 and secondary plasticizing section 4 for being incremented to 90 degree again
90 degree of period sexual intercourses for being decremented to 0 degree again are incremented to from 0 degree in the helix angle for the respective bins axial direction for transporting direction along material
For variation；Wherein, helix angle is not equal to 90 degree and 0 degree.
In the present invention, the conveying section 1, fluxing zone 2, vacuum zone 3, secondary plasticizing section 4 and the corresponding spiral knot of homogenizing zone 5
Cross-sectional shape of the structure in axial any position is ellipse.
In the present invention, 100 outer diameter of rotor functional structure is along axial equalization or successively successively decreases.
In the present invention, the every rotor further includes rotor drive part 200 and slave part 300, the rotor driving
Part 200 and slave part 300 set up separately at the both ends of rotor functional structure 100.
It is corresponding conveying section 1 on one of rotor, fluxing zone 2, true when the rotor is two in the present invention
It is dead band 3, secondary plasticizing section 4 and homogenizing zone 5 and conveying section 1 corresponding on another roots rotor, fluxing zone 2, vacuum zone 3, secondary
Fluxing zone 4 and homogenizing zone 5 mutually correspond incorgruous engagement each other；
The cross sectional shape of screw rod functional structure 100 on two rotors any position in the axial direction is size phase
Same and ellipse tangent to each other.
In the present invention, the central point of the cross section of every roots rotor axial direction any position with the rotation axis phase of rotor itself
It is overlapped or deviates.Specifically, every roots rotor is using the rotation axis of rotor itself as the circumference of center line being axially moved track
Movement or yaw motion.
Embodiment 1: as shown in Figure 1, provided in this embodiment a kind of based on oval cross section and the periodically variable modeling of lift angle
Change rotor, including 1 roots rotor, the rotor is by rotor functional structure 100 and sets up the rotor drive at 100 both ends of rotor functional structure separately
Dynamic part 200 and slave part 300 are constituted, and rotor drive part 200 with rotor drive (not shown) for being connected
It connects, slave part 300 is exported for melt.
Wherein, rotor shaft functional structure is along axial direction successively by conveying section 1, fluxing zone 2, vacuum zone 3,4 and of secondary plasticizing section
Homogenizing zone 5 forms, and the conveying section 1, fluxing zone 2, vacuum zone 3, secondary plasticizing section 4 and the corresponding helical structure of homogenizing zone 5 exist
The angle of the helix angle of axial any position is different.In the present embodiment, the conveying section 1, vacuum zone 3 and homogenizing zone 5
Helical structure gradually successively decrease in the helix angle for the respective bins axial direction for transporting direction along material, specifically, the conveying
Section 1, vacuum zone 3 and homogenizing zone 5 helical structure the respective bins axial direction that direction is transported along material helix angle from 90 degree
Gradually successively decrease to 0 degree；Wherein, helix angle is not equal to 90 degree and 0 degree.
The spiral shell of the fluxing zone 2 and the helical structure of secondary plasticizing section 4 in the respective bins axial direction for transporting direction along material
Lift angle is revolved periodically alternately to change.In the present embodiment, the helical structure of the fluxing zone 2 and secondary plasticizing section 4 is along material
The helix angle for transporting the respective bins axial direction in direction is incremented to 90 degree of periodical alternately variations for being decremented to 0 degree again from 0 degree；Its
In, helix angle is not equal to 90 degree and 0 degree.
As shown in Figure 1a, the conveying section 1, fluxing zone 2, vacuum zone 3, secondary plasticizing section 4 and the corresponding spiral of homogenizing zone 5
Cross-sectional shape of the structure in axial any position is ellipse.Wherein, in the cross section of every roots rotor axial direction any position
Heart point coincides or deviates with the rotation axis of rotor itself.
In the present embodiment, screw rod functional structure outer diameter being equal in axial any position on the single screw rod.
Embodiment 2: as shown in Fig. 2, provided in this embodiment a kind of based on oval cross section and lift angle
Periodically variable plasticizing rotor, including 2 roots rotors, every roots rotor is by rotor functional structure 100 and sets up separately in rotor function
The rotor drive part 200 and slave part 300 at 100 both ends of energy structure are constituted, and rotor drive part 200 is used for and rotor drives
Device (not shown) is connected, and slave part 300 is exported for melt.
Wherein, the rotor shaft functional structure 100 of every roots rotor along axial direction successively by conveying section 1, fluxing zone 2, vacuum zone 3,
Secondary plasticizing section 4 and homogenizing zone 5 form, corresponding conveying section 1, fluxing zone 2, vacuum zone 3, secondary modeling on one of rotor
Change conveying section 1 corresponding on section 4 and homogenizing zone 5 and another rotor, fluxing zone 2, vacuum zone 3, secondary plasticizing section 4 and homogenizing
Section 5 mutually corresponds incorgruous engagement each other；
The conveying section 1, fluxing zone 2, vacuum zone 3, secondary plasticizing section 4 and the corresponding helical structure of homogenizing zone 5 are in axial direction
The angle of the helix angle of any position is different.In the present embodiment, the conveying section 1, vacuum zone 3 and homogenizing zone 5 spiral shell
Rotation structure is gradually successively decreased in the helix angle for the respective bins axial direction for transporting direction along material, specifically, the conveying section 1,
The helical structure of vacuum zone 3 and homogenizing zone 5 the respective bins axial direction that direction is transported along material helix angle from 90 degree to 0 degree
Gradually successively decrease；Wherein, helix angle is not equal to 90 degree and 0 degree.
The spiral shell of the fluxing zone 2 and the helical structure of secondary plasticizing section 4 in the respective bins axial direction for transporting direction along material
Lift angle is revolved periodically alternately to change.In the present embodiment, the helical structure of the fluxing zone 2 and secondary plasticizing section 4 is along material
The helix angle for transporting the respective bins axial direction in direction is incremented to 90 degree of periodical alternately variations for being decremented to 0 degree again from 0 degree；Its
In, helix angle is not equal to 90 degree and 0 degree.
As shown in Figure 2 a, corresponding two conveying sections 1, fluxing zone 2, vacuum zone 3,4 and of secondary plasticizing section in two rotors
Cross-sectional shape of the corresponding helical structure of homogenizing zone 5 in axial any position is two equal sized and tangent ellipses
Shape.Wherein, the central point of the cross section of every roots rotor axial direction any position coincides with the rotation axis of rotor itself or partially
It moves.
In the present embodiment, two rotors are all the same in shape, dimensional structure, and the screw rod functional structure on every roots rotor
Outer diameter is equal axial any position.
Embodiment 3: as shown in figure 3, the present embodiment is similar with 1 structure of embodiment, difference is: in the present embodiment, often
The outer diameter of rotor functional structure 100 on roots rotor successively successively decreases along axial direction.
Embodiment 4: as shown in figure 4, the present embodiment is similar with 2 structure of embodiment, difference is: in the present embodiment, often
The outer diameter of rotor functional structure 100 on roots rotor successively successively decreases along axial direction.
Working principle of the present invention is as follows:
Plastics are under the action of rotor, because 1 section helix angle of conveying section is gradually reduced, 1 section of conveying section gradually by
Compression, enters fluxing zone 2.2 section helix angle periodicity size of fluxing zone alternating, irregular to change, plastics are in fluxing zone 2
Section is stretched or compressed with the cyclically-varying of rotor helical-screw lift angle, and when helix angle becomes larger, flight channel volume is increased, spiral
When lift angle becomes smaller, flight channel volume reduces, and melt generates Compression and Expansion effect with volume size variation, realizes the stretching stream of melt
Become plasticating condition.Because of the positive displacement characteristic of rotor, plastics flow to vacuum zone 3 by tension and compression and advance of wriggling.3 section of vacuum zone
Helix angle is gradually reduced, and after plastic melt extracts volatile matter air out by vacuum pump in 3 section of vacuum zone, volume is gradually reduced,
Plastic melt is compacted gradually, enters 4 section of secondary plasticizing section, 4 section helix angle periodicity size of secondary plasticizing section alternating
Variation, plastic melt are stretched or compressed again.Finally, plasticizing, scattered plastic melt enters 5 section of homogenizing zone, equal
Change 5 section helix angle of section to be gradually reduced, changes in gradient and melt is forced out machine barrel.
It is provided by the invention to be based on oval cross section and the periodically variable plasticizing rotor of lift angle, it is the core of plastics processing
Center portion part can be applied to a variety of plastic processing machineries.Enumerate certain applications example below, but structure proposed by the invention and
Its building method is not limited to these applications.
1, oval cross section and lift angle cyclically-varying single rotor extruder
As shown in figure 5, being application of the embodiment 1 in oval cross section and lift angle cyclically-varying single rotor extruder 400:
When plasticizing apparatus is using single oval cross section and the periodically variable plasticizing rotor of lift angle, single-turn is formed together with other components
Sub- plasticizing extruder or injection molding machine.It is special by the helix angle cyclically-varying using fluxing zone 2 in Fig. 1 and secondary plasticizing section 4
Property, reinforced plastics is in the plasticizing of inside machine barrel, so that the plastic melt plasticizing in exit is uniformly, dispersibility is more preferable.
2, oval cross section and the periodically variable parallel birotor extruder of lift angle
As shown in fig. 6, being embodiment 2 in oval cross section and the periodically variable parallel birotor extruder 500 of lift angle
Using: when plasticizing apparatus is using two oval cross sections and the periodically variable plasticizing rotor of lift angle, the group together with other components
At parallel birotor plasticizing extruder.By utilizing the helix angle cyclically-varying of fluxing zone 2 and secondary plasticizing section 4 in Fig. 3,
And conjugation ellipse 6 and oval 7, it is formed in a manner of the plasticizing based on draft flowing deformation.Corresponding screw mechanism spiral liter in rotor
When angle becomes larger, the flight channel volume of screw mechanism is increased；When corresponding screw mechanism helix angle becomes smaller in rotor, the spiral shell of screw mechanism
Sump volume reduces, and melt is plasticized in flight channel volume size alternately variation, so that plastic product physical performance index mentions significantly
It rises.
3, taper oval cross section and lift angle cyclically-varying single rotor extruder
As shown in fig. 7, being embodiment 3 in taper oval cross section and lift angle cyclically-varying single rotor extruder 600
Using: when plasticizing apparatus is using an oval cross section and the periodically variable plasticizing rotor of lift angle, and oval cross section and liter
The periodically variable plasticizing rotor in angle is taper (as shown in figure 3, rotor transfer subfunction structure 100 is tapered), that is, is constituted
Taper oval cross section and lift angle cyclically-varying single rotor extruder.Plastics promote layer by layer under the action of cone rotor.Plasticizing
Section 2 and 4 section of secondary plasticizing section have taper, and radial is oval cross section not of uniform size, axial lift angle cyclically-varying.Plastics
It is strongly plasticized in fluxing zone 2 and 4 section of secondary plasticizing section because of volume size variation, rotor is shorter than classic screw, process warm
Spend it is low, guarantee plastics product quality while, energy consumption decline.
4, taper oval cross section and the periodically variable birotor extruder of lift angle
As shown in figure 8, being embodiment 4 in taper oval cross section and the periodically variable birotor extruder 700 of lift angle
Using: when plasticizing apparatus uses two taper oval cross sections and the periodically variable plasticizing rotor of lift angle (as shown in figure 4, every
Rotor transfer subfunction structure 100 is tapered) when, it becomes taper oval cross section and the periodically variable birotor of lift angle squeezes
Machine out.In the conveying plasticizing process of two roots rotors, two taper oval cross sections and the periodically variable plasticizing of lift angle turn plastics
Sub mutually conjugation, in conjunction with the plasticizing function of fluxing zone 2 in figure one and secondary plasticizing section 4, the flight channel volume size of rotor alternately becomes
Change, plastics with flight channel volume variation when and stretch, when and compress, periodically reciprocal variation so that plastic products quality
It greatly improves.
5, oval cross section and lift angle cyclically-varying rotor injection molding machine
As shown in figure 9, being application of the embodiment 2 in oval cross section and lift angle cyclically-varying rotor injection molding machine 800: when
Oval cross section and lift angle cyclically-varying plasticizing rotor application become oval cross section and lift angle cyclically-varying when injection molding machine
Rotor injection molding machine, according to above-mentioned lift angle cyclically-varying and volume size exchange plasticizing principle, so that oval cross section and lift angle
The advantages of cyclically-varying rotor injection molding machine is likewise supplied with above-mentioned advantage, has and is plasticized, and plasticizing is uniform, and low energy consumption.
Actual production is the results show that above-mentioned be based on oval cross section and the periodically variable plasticizing rotor of lift angle, so that machine
The melt phase in cylinder exit is consistent, the temperature of melt interior point, viscosity, and rate and pressure are in even variation, these factors
The plastic products physical property made greatly improves, and appearance property substantially improves.Simultaneously as 4th area of fluxing zone 2 and secondary plasticizing section
Between helix angle periodicity size alternately change, based on plastics are plasticized with draft flowing deformation, so that melt built-in thermal stress is more equal
Even, the reduction of interior heat is so that the actual processing technology temperature of melt, velocity interval are broader.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (9)
1. one kind is based on oval cross section and the periodically variable plasticizing rotor of lift angle, including 1 or 2 roots rotors, turn described in every
Attached bag includes rotor functional structure (100), which is characterized in that the rotor functional structure (100) includes conveying section (1), fluxing zone
(2), vacuum zone (3), secondary plasticizing section (4) and homogenizing zone (5), it is the conveying section (1), fluxing zone (2), vacuum zone (3), secondary
The angle of the helix angle of fluxing zone (4) and the corresponding helical structure of homogenizing zone (5) in axial any position is different.
2. one kind according to claim 1 is existed based on oval cross section and the periodically variable plasticizing rotor of lift angle, feature
In the helical structure of the conveying section (1), vacuum zone (3) and homogenizing zone (5) is axial in the respective bins along material conveying direction
Helix angle gradually successively decrease, the spiral shell of the helical structure of the fluxing zone (2) and secondary plasticizing section (4) in respective bins axial direction
Lift angle is revolved periodically alternately to change.
3. one kind according to claim 2 is existed based on oval cross section and the periodically variable plasticizing rotor of lift angle, feature
In the helical structure of the conveying section (1), vacuum zone (3) and homogenizing zone (5) is axial in the respective bins along material conveying direction
Helix angle degree gradually successively decrease from 90 degree to 0；Wherein, helix angle is not equal to 90 degree and 0 degree.
4. one kind according to claim 2 is existed based on oval cross section and the periodically variable plasticizing rotor of lift angle, feature
In the spiral of the helical structure of the fluxing zone (2) and secondary plasticizing section (4) in the respective bins axial direction for transporting direction along material
Lift angle is decremented to 0 degree of periodical alternately variation or the fluxing zone (2) and secondary plasticizing section for being incremented to 90 degree again from 90 degree
(4) helical structure is incremented to 90 degree from 0 degree in the helix angle for the respective bins axial direction for transporting direction along material and is decremented to 0 again
The periodical of degree alternately changes；Wherein, helix angle is not equal to 90 degree and 0 degree.
5. one kind according to claim 1 is existed based on oval cross section and the periodically variable plasticizing rotor of lift angle, feature
In the conveying section (1), fluxing zone (2), vacuum zone (3), secondary plasticizing section (4) and the corresponding helical structure of homogenizing zone (5) exist
The cross-sectional shape of axial any position is ellipse.
6. one kind according to claim 1 is existed based on oval cross section and the periodically variable plasticizing rotor of lift angle, feature
In rotor functional structure (100) outer diameter is along axial equalization or successively successively decreases.
7. one kind according to claim 1 is existed based on oval cross section and the periodically variable plasticizing rotor of lift angle, feature
In, the every rotor further include rotor drive part (200) and slave part (300), the rotor drive part (200) and
Slave part (300) sets up separately at the both ends of rotor functional structure (100).
8. one kind according to claim 7 is existed based on oval cross section and the periodically variable plasticizing rotor of lift angle, feature
In, when the rotor is two, corresponding conveying section (1), fluxing zone (2), vacuum zone (3), two on one of rotor
Corresponding conveying section (1), fluxing zone (2), vacuum zone (3), two on secondary fluxing zone (4) and homogenizing zone (5) and another roots rotor
Secondary fluxing zone (4) and homogenizing zone (5) mutually correspond incorgruous engagement each other；
The cross sectional shape of screw rod functional structure (100) on two rotors any position in the axial direction is that size is identical
And ellipse tangent to each other.
9. according to claim 1 or claim 7 a kind of based on oval cross section and the periodically variable plasticizing rotor of lift angle, feature
It is, the central point of the cross section of every roots rotor axial direction any position coincides or deviates with the rotation axis of rotor itself.
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| CN201910410253.9A CN110315735A (en) | 2019-05-16 | 2019-05-16 | Based on oval cross section and the periodically variable plasticizing rotor of lift angle |
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| CN201910410253.9A CN110315735A (en) | 2019-05-16 | 2019-05-16 | Based on oval cross section and the periodically variable plasticizing rotor of lift angle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528817A (en) * | 1978-08-21 | 1980-02-29 | Toshiba Mach Co Ltd | Screw for plastic molding apparatus |
| US4981364A (en) * | 1988-05-12 | 1991-01-01 | Paul Geyer | Extrusion apparatus |
| CN108016018A (en) * | 2018-01-04 | 2018-05-11 | 武军 | A kind of pulsation plasticizing screw rod based on volume deformation |
| CN211763379U (en) * | 2019-05-16 | 2020-10-27 | 武汉亿美特模塑技术有限公司 | Plasticizing rotor based on periodic change of elliptical cross section and lift angle |
-
2019
- 2019-05-16 CN CN201910410253.9A patent/CN110315735A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528817A (en) * | 1978-08-21 | 1980-02-29 | Toshiba Mach Co Ltd | Screw for plastic molding apparatus |
| US4981364A (en) * | 1988-05-12 | 1991-01-01 | Paul Geyer | Extrusion apparatus |
| CN108016018A (en) * | 2018-01-04 | 2018-05-11 | 武军 | A kind of pulsation plasticizing screw rod based on volume deformation |
| CN211763379U (en) * | 2019-05-16 | 2020-10-27 | 武汉亿美特模塑技术有限公司 | Plasticizing rotor based on periodic change of elliptical cross section and lift angle |
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