CN207290864U - A kind of combination type ultralong single screw rod - Google Patents
A kind of combination type ultralong single screw rod Download PDFInfo
- Publication number
- CN207290864U CN207290864U CN201720887105.2U CN201720887105U CN207290864U CN 207290864 U CN207290864 U CN 207290864U CN 201720887105 U CN201720887105 U CN 201720887105U CN 207290864 U CN207290864 U CN 207290864U
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- screw rod
- spiral shell
- single screw
- section
- knockdown
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Abstract
The utility model discloses combination type ultralong single screw rod, it is made of feeding section, fluxing zone, metering section and mixing section, the fluxing zone is connected by screw thread with feeding section, the metering section is connected to the afterbody of the fluxing zone, the mixing section is connected by screw thread with metering section, and the mixing section and the intersegmental thread rotary orientation of metering and screw rod are oppositely oriented；The single screw rod has：Consume energy it is low, be plasticized, be kneaded be uniformly dispersed, extrude stablize, the advantages that yield is high, feeding section is not easy to wear, service life is long.
Description
Technical field
The present invention relates to a kind of extrusion of plastics high molecular material, the single screw rod of conveying equipment, more particularly to one kind has
Height is kneaded and the combination type ultralong single screw rod of divergent function.
Background technology
The single screw rod draw ratio that plastic extruder currently on the market uses is 36:Less than 1 short screw rod, the drawback is that：
High energy consumption, efficiency are low, plasticizing effect is bad, are kneaded and disperse uneven, service life is short etc..And existing single screw rod also has one
The defects of a serious, its feeding section are very easy to wear.Once feeding section has abrasion, except extrusion conveying can produce fluctuation,
More energy are consumed, also result in the fracture of screw rod.
The content of the invention
Problem to be solved by this invention is exactly to overcome and avoid the problem that above-mentioned and shortcoming, there is provided a kind of new-type with height
The knockdown overlength single screw rod of divergent function.The new-type single screw rod has：Energy consumption is low, is plasticized, is kneaded and is uniformly dispersed, extrudes
The advantages that stabilization, yield are high, feeding section is not easy to wear, service life is long.It is raw and the new-type single screw rod uses fabricated structure
Produce it is easy to make, can be easily by the draw ratio of screw rod by original 36:1 is lengthened to 38:1 or 40:1, it might even be possible to be lengthened to
It is longer.Each functional section of screw rod uses modularized design at the same time, carries out flexible combination according to the characteristic of raw material, conveniently and efficiently realizes
The effect of a variety of different, meet various specific demands.
Single screw rod of the present invention is made of feeding section, fluxing zone, metering section and mixing section.
The feeding section of single screw rod of the present invention has two spiral shell ribs, a main spiral shell rib and another secondary spiral shell rib, wherein
Secondary spiral shell rib length is not shorter than 1/3rd of the main spiral shell rib length of feeding section.The helical pitch of two spiral shell rib of major-minor is identical with bottom footpath, its helical pitch
Design parameter with bottom footpath is mainly according to the characteristic of plastic raw materials and the power driven come definite.Using double spiral shell rib feeding sections
The rigidity of feeding section is not only added, also improves the transfer efficiency of raw material.On the bottom footpath surface of feeding section and spiral shell rib side cloth
Wearing layer is equipped with, wearing layer use is sprayed, inlayed, welding or other high-tech approaches are made, and wearing layer can be wear-resisting
Metal material or nonmetallic materials, such as other wear-resistant materials such as ceramics, silicate.Wearing layer is connected firmly, no
It is easily separated.The advantages of wearing layer, is the abrasion that can effectively reduce feeding section, ensure that the stability of extrusion conveying, improves
Yield is extruded, also extends the service life of screw rod.
The fluxing zone of single screw rod of the present invention is connected by screw thread with feeding section, its thread rotary orientation and screw rod rotation direction
Conversely.The fluxing zone is equipped with two spiral shell ribs, its main spiral shell rib is connected with the main spiral shell rib of feeding section, and the height of secondary spiral shell rib is omited than main spiral shell rib
It is lower, barrier action is played, stops the solid plastic extrusion of non-fusion plastification.Main spiral shell rib bottom footpath gradually increases since fluxing zone
Greatly, secondary spiral shell rib bottom footpath gradually decreases, and such solid space progressively reduces, and melt space progressively increases.Using double spiral shell rib barriers
Structure, realizes solid and separation of the melt in extrusion, prevents solid particle to be mixed into the melt of plasticizing, have at the same time
The effect of gas is excluded, dense extrusion is good, improves the quality of follow-up product.
The metering section of single screw rod of the present invention is connected to the afterbody of fluxing zone, and metering section uses the structure of single spiral shell rib,
Its spiral shell rib is the equidistant extrusion for waiting depth, being so conducive to measure melt, overcomes the fluctuation of the yield of conventional screw extrusion.
The mixing section of single screw rod of the present invention is connected by screw thread with metering section, its thread rotary orientation and screw rod rotation direction
Conversely.Multiaperture-type unit is exactly that circular baffle plate is equipped with the footpath of screw rod bottom, and the inclined hole of direction intersection is provided with baffle, tiltedly
Hole circumference uniform distribution arrangement.It can allow ectonexine raw material to swap, and the high raw material of temperature that quickly will be close to machine tube inner wall is worn
Insert and exchange to screw surface, while intert close to the low raw material of screw surface temperature and exchange to close to machine tube inner wall.In this way
It is repeatedly interspersed exchange, the heat of machine barrel had quickly both been passed into screw rod, the loss of heat has been turn avoid, also improves melt
Radial temperature difference.Cellular unit is exactly the circular hole that direction intersection is provided with the footpath of screw rod bottom, and the arrangement of circular hole circumference uniform distribution, circular hole can
With by ectonexine plastic splitter, and realize the transposition flowing of plastics, VELOCITY DISTRIBUTION of the kind flowing, is improved in shorter space
Dispersion effect.Rectangle pin unit is exactly that the circumferential directions in screw rod bottom footpath have rectangle pin, it can reach multiple shunting
With the effect at interflow, the contact area of plastics and pin is added, improves mixing dispersion performance, while obtains uniform melt
Temperature.The mixing section is at least kneaded unit by two kinds and forms, or as needed by the mixing unit of two or more different efficacies
It is applied in combination, uniformity, the uniformity of melt temperature for being conducive to be kneaded and disperseing, reduce energy consumption, improve extrusion capacity height.
Mutual warm mixing particularly to the raw material of two or more different performance or different colours has preferable facilitation, and improves
Efficiency.
Screw rod according to the present invention is since screw rod major diameter is more than 38：1, so screw rod overall length is longer, it is contemplated that processing
Convenience, so using modularized combination type structure.Each main portions of screw rod can be segmented it is separately machined, can both reduce pair plus
The requirement of construction equipment, and flexible combination can be carried out according to the characteristic of raw material, conveniently and efficiently realize the effect of a variety of different, it is full
The various specific demands of foot.For some new materials, new process, can be directed to result of the test, and designing scheme is adjusted flexibly, convenient fast
Prompt finds preferable combining structure.Certainly from now on the raising of industrial might and level of processing, the screw rod of mature structure is also
Disposably can integrally it process.
Brief description of the drawings
Attached drawing 1 is the screw profile schematic diagram of the present invention.
Attached drawing 2 is the diagrammatic cross-section of the screw rod feeding section of the present invention.
Attached drawing 3 is the schematic diagram of the screw mixes section of the present invention.
Attached drawing 4 is the schematic diagram of the screw mixes section typical structure unit of the present invention.
Attached drawing 5 is the schematic diagram that the screw mixes section of the present invention is combined by two kinds of units.
Attached drawing 6 is the schematic diagram that the screw mixes section of the present invention is combined by two or more units.
Embodiment
As 1 screw rod of the present invention of attached drawing is made of feeding section 1, fluxing zone 2, metering section 3 and mixing section 4.
As the screw rod feeding section 1 of the present invention of attached drawing 1 at least has two spiral shell ribs, a main spiral shell rib 5 and secondary spiral shell rib 6,
Wherein secondary 6 length of spiral shell rib is not shorter than 1/3rd of main 5 length of spiral shell rib of feeding section.The helical pitch of two spiral shell rib of major-minor is identical with bottom footpath,
The design parameter in its helical pitch and bottom footpath is mainly according to the characteristic of plastic raw materials and the power driven come definite.Using double spiral shell ribs
Feeding section not only adds the rigidity of feeding section, also improves the transfer efficiency of raw material.
As attached drawing 2 has wearing layer 16, the use of wearing layer 16 spraying, edge on the bottom footpath surface of feeding section and spiral shell rib side arrangement
Embedding, welding or other high-tech approaches are made.Wearing layer 16 can be wear-resisting metal material or non-metallic material
Material, such as other wear-resistant materials such as ceramics, silicate.Material wearing layer 16 is connected firmly, and is not readily separated.The advantages of wearing layer, exists
In the abrasion that can effectively reduce feeding section, it ensure that the stability of extrusion conveying, improve extrusion yield, also extend screw rod
Service life.
Fluxing zone 2 such as 1 single screw rod of the present invention of attached drawing is connected by screw thread 7 with feeding section 1,7 rotation direction of screw thread
It is oppositely oriented with screw rod.The fluxing zone 2 is equipped with two spiral shell ribs, its main spiral shell rib 9 is connected with the main spiral shell rib 5 of feeding section, secondary spiral shell rib 8
Height is more lower slightly than main spiral shell rib 9, plays barrier action, stops the solid plastic extrusion of non-fusion plastification.Led since fluxing zone
Spiral shell rib bottom footpath gradually increases, and secondary spiral shell rib bottom footpath gradually decreases, and such solid space progressively reduces, and melt space progressively increases.
Using double spiral shell rib barrier structures, solid and separation of the melt in extrusion are realized, prevents solid particle to be mixed into plasticizing
In melt, while have the function that to exclude gas, dense extrusion is good, improves the quality of follow-up product.
Metering section 3 such as 1 single screw rod of the present invention of attached drawing is connected to the afterbody of fluxing zone 2, and metering section only has one
Spiral shell rib 10 is connected with the main spiral shell rib 9 of fluxing zone 2, and spiral shell rib 10 is the equidistant extrusion for waiting depth, being so conducive to measure melt, gram
The fluctuation of the yield of conventional screw extrusion is taken.
Mixing section 4 such as 3 single screw rod of the present invention of attached drawing is connected by screw thread 11 with metering section 3, and screw thread 11 revolves
To oppositely oriented with screw rod.
It is exactly that circular baffle plate 12 is equipped with the footpath of screw rod bottom, and keeping off such as the multiaperture-type unit of the present invention of attached drawing 4
The inclined hole 13 of direction intersection, the arrangement of 13 circumference uniform distribution of inclined hole are provided with plate 12.It can allow ectonexine raw material to swap, soon
The high raw material of temperature that speed will be close to machine tube inner wall interts and exchanges to screw surface, while close to the low raw material of screw surface temperature
It is interspersed to exchange to close to machine tube inner wall.Repeatedly interspersed exchange in this way, had both quickly passed to screw rod by the heat of machine barrel,
The loss of heat is turn avoid, also improves the radial temperature difference of melt.Cellular unit, is exactly provided with direction friendship on the footpath of screw rod bottom
The circular hole 14 of fork, the arrangement of 14 circumference uniform distribution of circular hole, the effect of circular hole 14 are by ectonexine plastic splitter, and realize the transposition of plastics
Flowing, the VELOCITY DISTRIBUTION of the kind flowing, dispersion effect is improved in shorter space.
It is exactly that the circumferential directions in screw rod bottom footpath have rectangle pin 15, it can reach such as 3 rectangle pin unit of attached drawing
The effect for repeatedly shunting and collaborating, adds the contact area of plastics and pin, improves mixing dispersion performance, while obtains equal
Even melt temperature.
Such as attached drawing 5, the mixing section is at least made of two kinds of mixing units.If attached drawing 6 is by two or more mixing unit roots
According to needing to be applied in combination, be conducive to be kneaded scattered uniformity, the uniformity of melt temperature, reduce energy consumption, improve extrusion
Amount is high.Mutual warm mixing particularly to the raw material of two or more different performance or different colours has preferable facilitation,
And improve efficiency.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand this present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.The present invention also fits
Extrusion equipment for other high molecular materials.All equivalent change or modifications that Spirit Essence is made according to the present invention, all
It is covered by the protection scope of the present invention.
Claims (9)
1. a kind of knockdown overlength single screw rod, it is characterised in that be made of feeding section, fluxing zone, metering section and mixing section, institute
State fluxing zone by screw thread with feeding section to be connected, the metering section is connected to the afterbody of the fluxing zone, and the mixing section leads to
Cross screw thread with metering section to be connected, the mixing section and the intersegmental thread rotary orientation of metering and screw rod are oppositely oriented.
2. a kind of knockdown overlength single screw rod according to claim 1, it is characterised in that the feeding section of single screw rod has
Two spiral shell ribs, a main spiral shell rib and another secondary spiral shell rib, wherein secondary spiral shell rib length is not shorter than three points of the main spiral shell rib length of feeding section
One of.
A kind of 3. knockdown overlength single screw rod according to claim 2, it is characterised in that the bottom of the feeding section of single screw rod
Footpath surface and spiral shell rib side arrangement have wearing layer.
4. a kind of knockdown overlength single screw rod according to claim 1, it is characterised in that the fluxing zone of single screw rod passes through
Screw thread is connected with feeding section, it is equipped with two spiral shell ribs, and the height of two ribs has nuance, wherein highly low for secondary spiral shell
Rib is highly high for main spiral shell rib.
A kind of 5. knockdown overlength single screw rod according to claim 1, it is characterised in that the metering section connection of single screw rod
In the afterbody of fluxing zone, metering section spiral shell rib is equidistant etc. deep.
6. a kind of knockdown overlength single screw rod according to claim 1, it is characterised in that the mixing section of single screw rod passes through
Screw thread is connected with metering section, its thread rotary orientation and screw rod are oppositely oriented；The mixing section is at least kneaded unit by two kinds and forms.
A kind of 7. knockdown overlength single screw rod according to claim 6, it is characterised in that multiaperture-type unit be exactly
Screw rod bottom footpath is equipped with circular baffle plate, and the inclined hole of direction intersection is provided with baffle, the arrangement of inclined hole circumference uniform distribution.
8. a kind of knockdown overlength single screw rod according to claim 6, it is characterised in that cellular unit is exactly in screw rod
The circular hole of direction intersection, the arrangement of circular hole circumference uniform distribution are provided with the footpath of bottom.
9. a kind of knockdown overlength single screw rod according to claim 6, it is characterised in that rectangle pin unit is exactly spiral shell
The circumferential directions in bar bottom footpath have rectangle pin, it can have the function that repeatedly shunting and interflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720887105.2U CN207290864U (en) | 2017-07-21 | 2017-07-21 | A kind of combination type ultralong single screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720887105.2U CN207290864U (en) | 2017-07-21 | 2017-07-21 | A kind of combination type ultralong single screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207290864U true CN207290864U (en) | 2018-05-01 |
Family
ID=62447333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720887105.2U Expired - Fee Related CN207290864U (en) | 2017-07-21 | 2017-07-21 | A kind of combination type ultralong single screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207290864U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497188A (en) * | 2020-04-30 | 2020-08-07 | 桂林理工大学 | A rubber extruder plasticizing device |
| CN112873804A (en) * | 2021-01-13 | 2021-06-01 | 上海理工大学 | Connection structure of screw is extruded to sectional type |
-
2017
- 2017-07-21 CN CN201720887105.2U patent/CN207290864U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497188A (en) * | 2020-04-30 | 2020-08-07 | 桂林理工大学 | A rubber extruder plasticizing device |
| CN112873804A (en) * | 2021-01-13 | 2021-06-01 | 上海理工大学 | Connection structure of screw is extruded to sectional type |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 Termination date: 20200721 |
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| CF01 | Termination of patent right due to non-payment of annual fee |