CN209381351U - Single screw extrusion machine high-efficiency and energy-saving type screw rod - Google Patents
Single screw extrusion machine high-efficiency and energy-saving type screw rod Download PDFInfo
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- CN209381351U CN209381351U CN201920105703.9U CN201920105703U CN209381351U CN 209381351 U CN209381351 U CN 209381351U CN 201920105703 U CN201920105703 U CN 201920105703U CN 209381351 U CN209381351 U CN 209381351U
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Abstract
The utility model discloses a kind of single screw extrusion machine high-efficiency and energy-saving type screw rods, including screw body, the screw body includes being additionally provided with oblique barrier screen by front end from sequentially connected fixed handle front to back, fixed thread section, the first deep threads section such as equidistant, the equidistant deep double thread section such as not and the second deep threads section such as equidistant, the described second equidistant equal deep threads section；Described first, second equidistantly waits deep threads section to be equipped with main thread, the equidistantly not equal deep double thread section is equipped with main thread and deputy thread, solid screw channel is formed between adjacent and separate deputy thread and main thread, and melt screw channel is formed between adjacent and close deputy thread and main thread.The single screw extrusion machine of the utility model high-efficiency and energy-saving type screw rod, high production efficiency, material plasticizing and dispersion effect are good, and the plastics product quality of production is good, energy conservation, screw rod long service life.
Description
Technical field
The utility model belongs to extruder technology field, is related to single screw extrusion machine high-efficiency and energy-saving type screw rod.
Background technique
With the development of science and technology, people require device of plastic processing also higher and higher, now domestic extrusion
Machine output is very big, and wherein single screw extrusion machine accounting is larger, and the key technology of extruder is screw rod, screw design and processing
Superiority and inferiority directly influence the height of whole equipment level, the effect of screw rod is conveying solid substance plastics, plasticizing into melt and provides
Pressure required for forming and flow.The single screw extrusion machine of the prior art is designed with screw flight, energy conservation, high efficiency,
It still needs further improvement in terms of plasticizing and dispersion effect, studies a kind of small abrasion, high production efficiency, energy conservation, plasticizing and divides
The good single screw extrusion machine screw rod of effect is dissipated, is that those skilled in the art are continually striving to solve the problems, such as.
Summary of the invention
In order to overcome the shortcomings of the single screw extrusion machine of the prior art in terms of screw design, the utility model provides one kind
Single screw extrusion machine high-efficiency and energy-saving type screw rod, the screw rod make that single screw extrusion machine plasticizing quality is high, dispersion effect is good, extrusion output
Stablize, energy conservation, production capacity height, long service life.
To achieve the above object, the technical solution of the utility model is: providing a kind of single screw extrusion machine with energy-efficient
Type screw rod, including screw body, the screw body include from sequentially connected fixed handle, fixed thread section, first front to back
Equidistant equal deep threads section, the equidistant deep double thread section such as not and the second deep threads section such as equidistant, the described second equidistant equal deep threads
Oblique barrier screen is additionally provided with by front end in section；Described first, second equidistant equal deep threads section is equipped with main thread, it is described it is equidistant not
It is equipped with main thread and deputy thread Deng deep double thread section, forms solid screw channel, phase between adjacent and separate deputy thread and main thread
Melt screw channel is formed between adjacent and close deputy thread and main thread.The fixed handle constitutes power engaging portion, the fixed spiral shell
Line section composition sealing, the described first equidistant equal deep threads section constitute charging and fusing department, the equidistantly not equal deep double thread section
Compression separation unit is constituted, described second equidistantly waits deep threads section to constitute metering homogenizing portion, and the oblique barrier screen constitutes mixing unit.Pressure
Contracting separation unit has melt screw channel and solid screw channel, can separate the melt in material with the solid not melted, improves plasticizing
Efficiency.
Further, in equidistantly not equal deep double thread section, the bottom diameter of melt screw channel is all the same, accounts for the section from starting point
2/3 long leading portion, solid screw channel bottom diameter is all the same, and solid screw channel bottom diameter is less than melt screw channel bottom diameter, accounts for the section in end
1/3 long back segment, the bottom diameter of solid screw channel are identical as melt screw channel bottom diameter.The structure plasticizing effect is good, does not generate bubble, melting
Process stability is good.
Further, before the bottom diameter of the main thread of the described first equidistant equal deep threads section and equidistant not equal deep double thread section
The solid screw channel bottom diameter of section is identical；The bottom diameter and the second equidistant equal deep threads section of deep double thread section back segment solid screw channel are not waited equidistantly
Main thread bottom diameter and equidistant not equal depth double thread section melt screw channel bottom diameter it is identical.
Further, the oblique barrier screen is arranged the blow tank of multiple strip feed wells and multiple strips, it is described into
The axis of hopper and blow tank and screw rod is at an acute angle, and the feed well is close to the open at one end of the fixed handle, far from fixed handle
One end is concordant with the lateral wall of the screw rod；The blow tank is far from the open at one end of fixed handle, close to the one of the fixed handle
It holds concordant with the lateral wall of the screw rod.Oblique barrier has the function of dispersion milling, can guarantee mixing and color blending effect.
Further, in this embodiment the second equidistant rear end for waiting deep threads section is additionally provided with equidistant plectane section, it is described equidistant
Plectane section is provided with several plectanes with chamfering.Equidistant plectane section constitutes the discharging portion of extruder, and plectane is conducive to the equal of plastics
Even stable outflow.
Further, the first equidistant equal deep threads section, the equidistant deep double thread section such as not and the second deep threads such as equidistant
Section, lead angle is 650—750.The screw rod transmission ability of the lead angle range is strong, and screw rod pivoting friction resistance is small.
Further, the first equidistant equal deep threads section, the equidistant deep double thread section such as not and the second deep threads such as equidistant
Section, lead angle is 720。
Further, the main spiral shell of the described first equidistant main thread screw pitch for waiting deep threads section and equidistant not equal deep double thread section
The screw pitch of line and deputy thread and the screw pitch of the second main thread of deep threads section such as equidistant are all the same.
As optimization, the draw ratio of the screw rod is 28-32:1.
The course of work of the utility model embodiment: material from the charging portion of the initial end of the first equidistant equal deep threads section into
Enter screw rod and convey backward, gradually start to melt, solid gradually decreases, and melt gradually increases, and solid matter is equidistant etc. first
Substantially it melts deep thread section end；There is melt screw channel and solid screw channel in equidistantly not equal deep double thread section, it can will be in material
Melt separated with the solid not melted, improve melting efficiency, material is plasticized；Melt liquid phase material and solid-phase material from
Equidistantly not equal deep double thread section is delivered to the front end of the second equidistant equal deep threads section, makees preliminary mixing, subsequently into oblique barrier screen,
A side opening of the mixed material by feed well close to fixed handle enters oblique barrier screen, and oblique barrier has the function of dispersion milling, energy
It is enough to guarantee that mixing and color blending effect, the material or particle diameter melted in screw rod rotation process are less than between barrel and screw rod
The material in gap entered in blow tank by the gap between barrel and screw rod, by blow tank far from fixed handle section one
Side opening transports material to the second equidistant rear end for waiting deep threads section；In the rear end of the second equal deep threads section, oblique barrier is come from
The material melts of section are homogenized and are delivered to equidistant plectane section, and in equidistant plectane section, liquid phase plastics are stablized from die head to flow out.
Compared with prior art, the utility model has the advantage that
1, the screw design of the utility model is reasonable, high production efficiency, and load increases, and mentions than same diameter screw rod yield
It is high by 30%；2, material extrusion stability is good, and extruder exhaust and liquid phase plasticizing dispersive mixing capability improve a lot, and reaches minimum
The polymer of change is degraded；3, plastic products crystal point obtained and bubble are few；4, screw pitch lift angle and draw ratio design are reasonable,
While guaranteeing the quality of production and production efficiency, frictional resistance is small, and energy consumption is low.
To sum up, the single screw extrusion machine of the utility model high-efficiency and energy-saving type screw rod, high production efficiency, material plasticizing and point
Scattered effect is good, and the plastics product quality of production is good, energy conservation, screw rod long service life.
Detailed description of the invention
The structural schematic diagram of the single screw extrusion machine of Fig. 1 the utility model embodiment high-efficiency and energy-saving type screw rod；
18 expanded view of oblique barrier screen in Fig. 2 Fig. 1；
In figure: 1, screw body, 2, main thread, 3, deputy thread, 4, solid screw channel, 5, melt screw channel, 6, feed well, 7, go out
Hopper, 8, plectane, 11, fixed handle, 12, fixed thread section, the 13, first deep threads section such as equidistant, 14, the equidistant deep double thread such as not
Section, 15, the leading portion of the equidistant deep double thread section such as not, 16, the back segment of the equidistant deep double thread section such as not, the 17, second deep spiral shell such as equidistant
Line section, 18, oblique barrier screen, 19, equidistant plectane section.
Specific embodiment:
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
Query graph 1, Fig. 2, the single screw extrusion machine high-efficiency and energy-saving type screw rod of the utility model embodiment, including screw rod sheet
Body 1, screw body 1 include from the deep threads section such as sequentially connected fixed handle 11, fixed thread section 12, first front to back be equidistant
13, the equidistant deep double thread section such as not 14 and the second deep threads section 17 such as equidistant, by nearby in the second equidistant equal deep threads section 17
End is additionally provided with oblique barrier screen 18；First, second equidistantly waits deep threads section 13,17 to be equipped with main thread 2, equidistantly not equal deep double thread
Section 14 be equipped with main thread 2 and deputy thread 3, between adjacent and separate deputy thread 3 and main thread 2 formed solid screw channel 4, it is adjacent and
Melt screw channel 5 is formed between close deputy thread 3 and main thread 2.The fixed handle 11 constitutes power engaging portion, the fixed spiral shell
The composition sealing of line section 12, the described first equidistant equal deep threads section 13 constitute charging and fusing department, equidistantly not equal deep double spiral shells
Line section 14 constitutes compression separation unit, and described second equidistantly waits deep threads section 17 to constitute metering homogenizing portion, oblique 18 structure of barrier screen
At mixing unit.Compressing separation unit has solid screw channel 4 and melt screw channel 5, can be by the melt in material and the solid not melted
It separates, improves plasticizing efficiency.
In the present embodiment, in equidistantly not equal deep double thread section 14, the bottom diameter of melt screw channel 5 is all the same, from starting point
The long leading portion 15 of this section 2/3 is accounted for, 4 bottom diameter of solid screw channel is all the same, and 4 bottom diameter of solid screw channel is less than 5 bottom diameter of melt screw channel, at end
End accounts for the long back segment 16 of this section 1/3, and the bottom diameter of solid screw channel 4 is identical as 5 bottom diameter of melt screw channel.The structure plasticizing effect is good,
Bubble is not generated, melting process stability is good.
Further, the bottom diameter of the described first equidistant main thread 2 for waiting deep threads section 13 and equidistant not equal deep double thread
The 4 bottom diameter of solid screw channel of section leading portion 15 is identical；The bottom diameter and second of deep 16 solid screw channel 4 of double thread section back segment is not waited equidistantly equidistantly
The bottom diameter of the 2 bottom diameter of main thread of equal deep threads section 17 and the melt screw channel 5 of equidistant not equal depth double thread section 14 is identical.
Bottom diameter described in the utility model, is the screw rod radius of thread root, which is those skilled in the art institute
It is known.
In the present embodiment, the blow tank 7 of multiple strip feed wells 6 and multiple strips is arranged in the oblique barrier screen 18,
The feed well 6 and blow tank 7 and the axis of screw rod are at an acute angle, and the feed well 6 is open at one end close to the fixed handle 11,
It is concordant with the lateral wall of the screw rod far from 11 one end of fixed handle；The blow tank 7 is close far from the open at one end of fixed handle 11
One end of the fixed handle 11 is concordant with the lateral wall of the screw rod.Oblique barrier has the function of dispersion milling, can guarantee to be kneaded
And color blending effect.
In the present embodiment, the second equidistant rear end for waiting deep threads section 17 is additionally provided with equidistant plectane section 19, the equidistant plectane
Section 19 is provided with several plectanes 8 with chamfering.Equidistant plectane section 19 constitutes the discharging portion of extruder, and plectane 8 is conducive to plastics
Uniform and stable outflow.
In the present embodiment, the first equidistant equal deep threads section 13, the equidistant deep double thread section such as not 14 and second are equidistant etc. deep
Thread segment 17, lead angle are 720.The screw rod transmission ability of the lead angle is strong, and screw rod pivoting friction resistance is small.
In the present embodiment, the described first equidistant 2 screw pitch of main thread for waiting deep threads section 13 and equidistant not equal deep double thread section
14 main thread 2 and the screw pitch of deputy thread 3 and the screw pitch of the second main thread 2 of deep threads section 17 such as equidistant are all the same.Screw pitch
Identical, processing and fabricating is easy, and manufacturing cost is low, and it is small to operate smooth resistance.
In the present embodiment, the draw ratio of the screw rod 1 is 30:1.The draw ratio is conducive to material and carries out sufficiently plasticizing mist
Change, while can guarantee that temperature is stablized, guarantees quality of material, and 1 intensity of screw rod will not be greatly affected, 1 intensity of screw rod has guarantor
Card.
The course of work of the utility model embodiment: material from the charging portion of the initial end of the first equidistant equal deep threads section into
Enter screw rod 1 and convey backward, gradually start to melt, solid gradually decreases, and melt gradually increases, and solid matter is equidistant etc. first
Substantially it melts 13 end of deep thread section；There is melt screw channel 5 and solid screw channel 4 in equidistantly not equal deep double thread section 14, it can will
Melt in material is separated with the solid not melted, is improved melting efficiency, is plasticized to material；Melt liquid phase material and solid phase
Material is delivered to the front end of the second equidistant equal deep threads section 17 from equidistantly not equal deep double thread section 14, makees preliminary mixing, then into
Enter oblique barrier screen 18, mixed material enters oblique barrier screen 18, oblique barrier tool close to a side opening of fixed handle 11 by feed well 6
There is dispersion milling function, can guarantee mixing and color blending effect, the material or particle diameter melted in 1 rotation process of screw rod
Material less than the gap between barrel and screw rod is entered in blow tank 7 by the gap between barrel and screw rod, by going out
Hopper 7 transports material to the second equidistant rear end for waiting deep threads section 17 far from a side opening of fixed handle section 11；Second etc.
The rear end of deep thread section 17, the material melts from oblique barrier screen 18 are homogenized and are delivered to equidistant plectane section 19, in equidistant plectane
Section 19, liquid phase plastics are stablized from die head to flow out.
Compared with prior art, the utility model embodiment has the advantage that
1, the screw design of the utility model embodiment is reasonable, high production efficiency, and load increases, than same diameter screw rod
Output increased 30%；2, material extrusion stability is good, and extruder exhaust and liquid phase plasticizing dispersive mixing capability improve a lot, and reaches
Polymer to minimum is degraded；3, plastic products crystal point obtained and bubble are few；4, screw pitch lift angle and draw ratio are set
Rationally, while guaranteeing the quality of production and production efficiency, frictional resistance is small, and energy consumption is low for meter.
To sum up, the single screw extrusion machine of the utility model embodiment high-efficiency and energy-saving type screw rod, high production efficiency, material modeling
Change and dispersion effect is good, production plastics product quality is good, energy conservation, screw rod long service life.
Above embodiments and attached drawing are merely to illustrate the technical solution of the utility model, are not the limits to the utility model
System, is described in detail the utility model referring to preferred embodiment, those skilled in the art should understand that,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model
Without departure from
The objective of the utility model also should belong to the claims of the utility model.
It is state of the art that the utility model, which does not specifically describe place,.
Claims (9)
1. a kind of single screw extrusion machine high-efficiency and energy-saving type screw rod, it is characterised in that: including screw body, the screw body packet
Include from sequentially connected fixed handle front to back, fixed thread section, the first deep threads section such as equidistant, the equidistant deep double thread section such as not,
And the second equidistant equal deep threads section, oblique barrier screen is additionally provided with by front end in the described second equidistant equal deep threads section；Described
One, the second deep threads section such as equidistant is equipped with main thread, and the equidistant not equal deep double thread section is equipped with main thread and deputy thread, phase
Solid screw channel is formed between adjacent and separate deputy thread and main thread, is formed between adjacent and close deputy thread and main thread molten
Body screw channel.
2. single screw extrusion machine according to claim 1 high-efficiency and energy-saving type screw rod, it is characterised in that: equidistantly not equal deep
The bottom diameter of double thread section, melt screw channel is all the same, accounts for the long leading portion of this section 2/3 from starting point, solid screw channel bottom diameter is homogeneous
Together, and solid screw channel bottom diameter is less than melt screw channel bottom diameter, accounts for the long back segment of this section 1/3 in end, the bottom diameter of solid screw channel with
Melt screw channel bottom diameter is identical.
3. single screw extrusion machine according to claim 2 high-efficiency and energy-saving type screw rod, it is characterised in that: described first is equidistant
The bottom diameter of the main thread of equal deep threads section does not wait the solid screw channel bottom diameter of deep double thread section leading portion identical with equidistant；It does not wait equidistantly deep
The main thread bottom diameter and equidistant not equal deep pair of spiral shells of the bottom diameter of double thread section back segment solid screw channel and the second equidistant equal deep threads section
The bottom diameter of the melt screw channel of line section is identical.
4. single screw extrusion machine according to claim 1 high-efficiency and energy-saving type screw rod, it is characterised in that: the oblique barrier screen
The axis of the blow tank of multiple strip feed wells and multiple strips, the feed well and blow tank and screw rod is set in sharp
Angle, the feed well is open at one end close to the fixed handle, concordant with the lateral wall of the screw rod far from fixed handle one end；Institute
Blow tank is stated far from the open at one end of fixed handle, one end close to the fixed handle is concordant with the lateral wall of the screw rod.
5. single screw extrusion machine according to claim 1 high-efficiency and energy-saving type screw rod, it is characterised in that: second is equidistantly equal deep
The rear end of thread segment is additionally provided with equidistant plectane section, and the equidistant plectane section is provided with several plectanes with chamfering.
6. single screw extrusion machine according to claim 1 high-efficiency and energy-saving type screw rod, it is characterised in that: first is equidistantly equal deep
Thread segment, the equidistant deep double thread section such as not and the second deep threads section, lead angle such as equidistant are 650—750。
7. single screw extrusion machine according to claim 6 high-efficiency and energy-saving type screw rod, it is characterised in that: first is equidistantly equal deep
Thread segment, the equidistant deep double thread section such as not and the second deep threads section, lead angle such as equidistant are 720。
8. single screw extrusion machine according to claim 1 high-efficiency and energy-saving type screw rod, it is characterised in that: described first is equidistant
The main thread screw pitch of equal deep threads section and the main thread of equidistant not equal deep double thread section and the screw pitch of deputy thread and second are equidistant
The screw pitch of the main thread of equal deep threads section is all the same.
9. single screw extrusion machine according to claim 1 high-efficiency and energy-saving type screw rod, it is characterised in that: the length of the screw rod
Diameter ratio is 28-32:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920105703.9U CN209381351U (en) | 2019-01-22 | 2019-01-22 | Single screw extrusion machine high-efficiency and energy-saving type screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920105703.9U CN209381351U (en) | 2019-01-22 | 2019-01-22 | Single screw extrusion machine high-efficiency and energy-saving type screw rod |
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| CN209381351U true CN209381351U (en) | 2019-09-13 |
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| CN201920105703.9U Active CN209381351U (en) | 2019-01-22 | 2019-01-22 | Single screw extrusion machine high-efficiency and energy-saving type screw rod |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978445A (en) * | 2019-12-31 | 2020-04-10 | 宁夏祥鑫隆工贸有限公司 | PE pipeline production process and device |
| CN114311583A (en) * | 2021-12-25 | 2022-04-12 | 东莞市杰伟机械制造有限公司 | PC/PMMA optical composite sheet extrusion production line |
-
2019
- 2019-01-22 CN CN201920105703.9U patent/CN209381351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110978445A (en) * | 2019-12-31 | 2020-04-10 | 宁夏祥鑫隆工贸有限公司 | PE pipeline production process and device |
| CN114311583A (en) * | 2021-12-25 | 2022-04-12 | 东莞市杰伟机械制造有限公司 | PC/PMMA optical composite sheet extrusion production line |
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