CN208468999U - A kind of extrusion screw rod - Google Patents
A kind of extrusion screw rod Download PDFInfo
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- CN208468999U CN208468999U CN201821018359.1U CN201821018359U CN208468999U CN 208468999 U CN208468999 U CN 208468999U CN 201821018359 U CN201821018359 U CN 201821018359U CN 208468999 U CN208468999 U CN 208468999U
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Abstract
A kind of extrusion screw rod, the cone-shaped rod body being gradually reduced including diameter and the spiral shell rib being arranged on cone-shaped rod body, spiral shell rib is divided into feed zone, melt zone, homogenizing zone and material extrusion section, it is characterized by: being provided with one section of transition between feed zone and melt zone, two sections of transition are provided between melt zone and homogenizing zone, feed zone, the spiral shell rib spacing of one section of transition and melt zone is sequentially reduced, the spiral shell rib spacing of two sections of the transition is greater than or equal to the spiral shell rib spacing of melt zone, the spiral shell rib spacing of the homogenizing zone is greater than two sections of transition of spiral shell rib spacing, the spiral shell rib spacing of the material extrusion section is less than the spiral shell rib spacing of homogenizing zone and is greater than two sections of transition of spiral shell rib spacing, the feed zone, one section of transition, melt zone, two sections of transition, homogenizing zone and the spiral shell rib of material extrusion section are mutually interrupted setting, and the interruption distance of the adjacent spiral shell rib section of any two is 20~40m M.Utility model has the advantages that material sufficiently can be squeezed and be sheared, there is material high treating effect, treatment effeciency is high, and discharging is uniform and is not easy putty.
Description
Technical field
The utility model relates to a kind of screw rod manufacture technology field, a kind of especially extrusion screw rod.
Background technique
Application No. is the Chinese utility model of CN201220066102.X entitled " cone twin-screw " a kind of is special for existing one kind
Benefit discloses a kind of cone twin-screw, and independently to rotate and being mutually juxtaposed together, and the spiral shell rib of two screw rods is intermeshed one
It rises, the spiral shell rib segment length of two screw rods is equal, it is characterised in that: the front end of two screw rods is respectively arranged with lid
Cap, the spiral shell rib of spiral shell rib is away from from left to right from large to small on two screw rods.The advantages of utility model, is: the cone twin-screw
It include that two screw rods, the front end of two screw rods are respectively arranged with nut cap, the spiral shell of two screw rods to the intermeshing of spiral shell rib together
Rib is away from from left to right from large to small.The structure makes screw rod have the sufficient time to be preheated, be compacted and conveyed to material, avoids
Putty and burnt material are conducive to material equably from solid state transformed for molten state, to be made, surface is smooth, uniform color, do not have
Bladdery extrusion finished product.However, the cone twin-screw length is shorter, and the spiral shell rib of screw zones cannot shear material well,
Matter homogenizing effect is undesirable, it is also possible to and cause the inadequate smooth interior of surface of material of output not uniform enough, therefore the screw rod
Structure also needs to be further improved.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of extrusion screw rod for above-mentioned state of the art,
This extrusion screw rod sufficiently can squeeze and shear material, have material high treating effect, and treatment effeciency is high, and discharging is uniform and is not easy to block up
The advantages of material.
Technical solution adopted by the utility model to solve the above technical problems is as follows: this extrusion screw rod, including diameter is gradually
Reduced cone-shaped rod body and the spiral shell rib being arranged on cone-shaped rod body, the spiral shell rib are divided into feed zone, melt zone, homogenizing zone and material extrusion
Section, it is characterised in that: be provided with one section of transition between the feed zone and melt zone, be arranged between the melt zone and homogenizing zone
There are two sections of transition, the spiral shell rib spacing of the feed zone, one section of transition and melt zone is sequentially reduced, the spiral shell rib of two sections of the transition
Spacing is greater than or equal to the spiral shell rib spacing of melt zone, and the spiral shell rib spacing of the homogenizing zone is greater than two sections of transition of spiral shell rib spacing, institute
The spiral shell rib spacing for stating material extrusion section is less than the spiral shell rib spacing of homogenizing zone and is greater than two sections of transition of spiral shell rib spacing, the feed zone, mistake
Cross one section, melt zone, two sections of transition, the spiral shell rib of homogenizing zone and material extrusion section is mutually interrupted setting, and the spiral shell rib that any two are adjacent
The interruption distance of section is 20~40mm.
As an improvement, it is -0.05 that the spiral shell rib maximum spiral shell diameter on the feed zone, which is 295mm tolerance, the cone-shaped rod body
Both ends length is 4240mm, and the rear and front end distance of spiral shell rib is 3835mm.To at present for there are no so big spiral shell diameter and length
Screw rod, the reason of being not achieved is that quality of materials is unqualified with technology, and the utility model has well solved this and asked
It inscribes, for the spiral shell rib maximum spiral shell diameter on feed zone up to 295mm, the rear and front end distance of spiral shell rib reaches 3835mm, in materiel machining,
Screw rod can generate powerful torsion and squeeze and shear material, and screw rod can bear faster revolving speed, accelerate material processing speed,
Improve material treatment effeciency.
As an improvement, the melt zone includes two sections of one section of melting and melting, melts one section of spiral shell rib width and be greater than melting two
Section spiral shell rib width, melt one section of spiral shell rib spacing be greater than melting two sections of spiral shell rib spacing, melting one section with melt two sections junction with
And two sections of melting is above axially provided with spiral helicine backflash；The backflash is preferably to be arranged along the body of rod circle spacing, institute
The quantity for stating backflash is 3~7, and the width of the backflash is 30~37mm.Melt zone is divided into one section of melting and melting two
Section, is all different on spiral shell rib width and spiral shell rib spacing, into melt zone material gradually by the effect of high temperature and pressure, melting
Melting section punishment is two sections of processes for making material have a pressure change progressive during pushing ahead along screw rod, improves melting effect
Fruit also allows the spiral shell rib of the position big to the material of position application pressure appropriate with spiral shell rib spacing with spiral shell rib width appropriate
It is small；Backflash can make material form reflux during advance, and reflux facilitates material and further uniformly mixes, and makes material
Heat exchange action increases the thermal balance for reaching surface of material.
It is further improved, the backflash is preferably divided into leading portion backflash and back segment backflash, and leading portion backflash is with after
The axial length ratio of section backflash is 3: 5, and the depth of back segment backflash remains unchanged, and back segment reflux groove depth is 32mm, leading portion
The depth of backflash becomes larger, and the front end depth of leading portion backflash is 5mm, and the rear end depth of leading portion backflash is 32mm.It returns
The variation of chute depth facilitates the backflow of material, avoids the generation of congestion situations.
As an improvement, one section of spiral shell rib width of the melting is preferably 9.5mm, one section of spiral shell rib spacing of the melting is
34mm, described two sections of spiral shell rib width of melting are 7.5mm, and described two sections of spiral shell rib spacing of melting are 30mm, melt one section and melting two
The junction of section and the axial length of two sections of melting and be 400mm, the axial length of one section of the melting is 300mm, described molten
The axial length for melting two sections is 330mm.
As an improvement, the feed zone is preferably divided into two sections of one section of charging and charging, feeding one section of spiral shell rib width is
20mm, feeding one section of spiral shell rib spacing is 58mm, and feeding two sections of spiral shell rib width is 15mm, and feeding two sections of spiral shell rib spacing is 48mm.Into
Material section is also classified into two sections, and material is contacted with feed zone first after entering machine barrel, obtains the process of a preheating in feed zone material,
The spiral shell rib spacing of one section of charging is greater than two sections of charging and is able to achieve sufficiently charging and can obtain a precompression feeding two sections of materials
Allow material that can quickly adapt to the pressure change of melt zone, two sections than charging of spiral shell rib width of spiral shell rib width of one section of charging is wide,
Because the temperature of charge just fed is slow compared with low flow velocity, wider spiral shell rib helps that material is pushed to advance, and is conducive to process.
As an improvement, one section of spiral shell rib width of transition is preferably 12mm, one section of spiral shell rib spacing of transition is 40mm, the transition
One section of axial length is 365mm；Two sections of spiral shell rib width of transition are 20mm, and two sections of spiral shell rib spacing of transition are 58mm, the transition
Two sections of axial length is 130mm.One section of transition and two sections of transition of spiral shell rib width and spiral shell rib spacing and corresponding front and back spiral shell
The spiral shell rib width and spiral shell rib spacing of rib section are adapted, and are avoided the occurrence of pressure suddenly change during material advance, are risen
To good transitional function.
As an improvement, the material extrusion section includes one section of material extrusion, two sections and three sections of material extrusion of material extrusion, one section of spiral shell rib width of material extrusion is
17mm, one section of spiral shell rib spacing of material extrusion are 68mm, and two sections of spiral shell rib width of material extrusion are 18.8mm, and two sections of spiral shell rib spacing of material extrusion are 72mm,
Three sections of spiral shell rib width of material extrusion are 20mm, and three sections of spiral shell rib spacing of material extrusion are 75mm.
It is further improved, the axial length of the material extrusion section is preferably 1180mm, the axial length of one section of the material extrusion
For 370mm, the axial length of two sections of the material extrusion is 380mm, and the axial length of three sections of the material extrusion is 430mm；Homogenizing zone spiral shell
Rib width is 28mm, and homogenizing zone spiral shell rib spacing is 95mm, and the axial length of the homogenizing zone is 600mm.Between the spiral shell rib of homogenizing zone
Away from for each spiral shell rib section medium spacing maximum, material is in homogenizing zone by maximum axial compressive force and biggish radial pressure, material
Discharge gas keeps material compacting fine and close under high pressure effect, and material extrusion section radial pressure further increases, and makes a small amount of melting modeling not yet
The macromolecule of change is completed to be plasticized here, to eliminate last " particle ", forms material after uniform and stable processing.
It is further improved, the feed zone, one section of transition, melt zone, two sections of transition, spiral shell rib edge in homogenizing zone and material extrusion section
Angle between the bevel edge and vertical reference line of the radial section of plane where central axis is preferably followed successively by 3 °, and 5 °, 5 °,
5 °, 12 ° and 16 °.As material is gradually increased along the screw rod pressure that constantly advance material is subject to, therefore material is to its movement of promotion
The reaction force of spiral shell rib be also gradually increased, angle can improve the firmness degree of spiral shell rib root using above-mentioned angle design, subtract
Few spiral shell rib damage, extends the service life of screw rod.
Compared with the prior art, the advantages of the utility model are: due to being gradually become smaller in shank diameter and on each section
Spiral shell rib spacing and spiral shell rib width it is not identical, therefore between feed zone and melt zone and between melt zone and homogenizing zone point
She Zhi not be one section and two sections of transition of transition, it reduces spiral shell rib width and the variation of spiral shell rib spacing causes the situation of material extruding unevenness to send out
It is raw；Feed zone, one section of transition, melt zone, two sections of transition, the spiral shell rib of homogenizing zone and material extrusion section be mutually interrupted setting so that it is convenient to
The processing of each spiral shell rib section, each thread segment after enabling processing meet the requirement of width and spacing preferably to squeeze out qualification
Material；The interruption distance of the adjacent spiral shell rib section of any two is 20~40mm, the interruption in the distance range on material influence compared with
It is small, and processing can be facilitated, it is ideal distance；This extrusion screw rod sufficiently can squeeze and shear material, and production is easy to use,
The advantages of with material high treating effect, treatment effeciency is high, discharges uniformly and is not easy putty.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the sectional view in Fig. 1 along U-U line；
Fig. 3 is the structural schematic diagram of part where backflash in Fig. 1；
Fig. 4 is the sectional view of part-structure plane where the central axis in two sections of transition in Fig. 1.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown in Figures 1 to 4, the extrusion screw rod of the present embodiment, the cone-shaped rod body 1 being gradually reduced including diameter and setting exist
Spiral shell rib on cone-shaped rod body 1, the spiral shell rib are divided into feed zone A, melt zone B, homogenizing zone C and material extrusion section D, the feed zone A with
It is provided with one section of E of transition between melt zone B, two sections of F of transition, the feed zone are provided between the melt zone B and homogenizing zone C
A, the spiral shell rib spacing of transition one section of E and melt zone B is sequentially reduced, and the spiral shell rib spacing of two sections of F of the transition is greater than or equal to molten
Melt the spiral shell rib spacing of section B, the spiral shell rib spacing of the homogenizing zone C is greater than the spiral shell rib spacing of two sections of F of transition, the spiral shell of the material extrusion section D
Rib spacing is less than the spiral shell rib spacing of homogenizing zone C and the spiral shell rib spacing greater than two sections of F of transition, the feed zone A, one section of E of transition melt
Melt a section B, the spiral shell rib of transition two sections of F, homogenizing zone C and material extrusion section D are mutually interrupted setting, and between the adjacent spiral shell rib section of any two
Turn-off is 20~40mm from K.Spiral shell rib maximum spiral shell diameter t on the feed zone A is that 295mm tolerance is -0.05, the cone-shaped rod body
1 both ends length H is 4240mm, and the rear and front end distance P of spiral shell rib is 3835mm.The melt zone B include one section of B1 of melting with
Two sections of B2 are melted, one section of spiral shell rib width L4 is melted and is greater than two sections of spiral shell rib width L5 of melting, melt one section of spiral shell rib interval S 4 greater than molten
Melt two sections of spiral shell rib interval Ss 5, melts and be axially provided with spiral on the two sections of B2 in junction and melting of two sections of B2 of one section of B1 and melting
The backflash 2 of shape；The backflash 2 is arranged along the body of rod circle spacing, and the quantity of the backflash 2 is 3~7, the reflux
The width T of slot 2 is 30~37mm.The backflash 2 divides for leading portion backflash and back segment backflash, and leading portion backflash and back segment return
The axial length ratio of chute is 3: 5, and the depth of back segment backflash remains unchanged, and back segment flows back groove depth M as 32mm, and leading portion flows back
The depth of slot becomes larger, and the front end depth N1 of leading portion backflash is 5mm, and the rear end depth N2 of leading portion backflash is 32mm.Institute
Stating one section of spiral shell rib width L4 of melting is 9.5mm, and described one section of spiral shell rib interval S 4 of melting is 34mm, two sections of spiral shell rib width of the melting
L5 is 7.5mm, and described two sections of spiral shell rib interval Ss 5 of melting are 30mm, melts one section of B1 and melts junction and the melting two of two sections of B2
Section B2 axial length and be 400mm, it is described melting one section of B1 axial length be 300mm, it is described melting two sections of B2 axial direction
Length is 330mm.The feed zone A points are two sections of A2 of one section of A1 of charging and charging, and feeding one section of spiral shell rib width L1 is 20mm, into
Expect that one section of spiral shell rib interval S 1 is 58mm, feeding two sections of spiral shell rib width L2 is 15mm, and feeding two sections of spiral shell rib interval Ss 2 is 48mm.Transition
One section of spiral shell rib width L3 is 12mm, and one section of spiral shell rib interval S 3 of transition is 40mm, and the axial length of one section of E of transition is 365mm；
Two sections of spiral shell rib width L6 of transition are 20mm, and two sections of spiral shell rib interval Ss 6 of transition are 58mm, and the axial length of two sections of F of transition is
130mm.The material extrusion section D includes one section of D1 of material extrusion, and three sections of D3 of two sections of D2 of material extrusion and material extrusion, one section of spiral shell rib width L8 of material extrusion are
17mm, one section of spiral shell rib interval S 8 of material extrusion are 68mm, and two sections of spiral shell rib width L9 of material extrusion are 18.8mm, and two sections of spiral shell rib interval Ss 9 of material extrusion are
72mm, three sections of spiral shell rib width L0 of material extrusion are 20mm, and three sections of spiral shell rib interval Ss 0 of material extrusion are 75mm.The axial length of the material extrusion section D
For 1180mm, the axial length of one section of D1 of material extrusion is 370mm, and the axial length of two sections of D2 of material extrusion is 380mm, described
The axial length of three sections of D3 of material extrusion is 430mm；Homogenizing zone spiral shell rib width L7 is 28mm, and homogenizing zone spiral shell rib interval S 7 is 95mm, institute
The axial length for stating homogenizing zone C is 600mm.The feed zone A, transition one section of E, melt zone B, transition two sections of F, homogenizing zone C and
Angle ω of the spiral shell rib between the bevel edge and vertical reference line of the radial section of plane where central axis is followed successively by material extrusion section D
3 °, 5 °, 5 °, 5 °, 12 ° and 16 °.
Claims (10)
1. a kind of extrusion screw rod, the cone-shaped rod body being gradually reduced including diameter (1) and the spiral shell rib being arranged on cone-shaped rod body (1),
The spiral shell rib is divided into feed zone (A), melt zone (B), homogenizing zone (C) and material extrusion section (D), it is characterised in that: the feed zone (A)
It is provided with one section of transition (E) between melt zone (B), is provided with two sections of transition between the melt zone (B) and homogenizing zone (C)
(F), the feed zone (A), one section of transition (E) and melt zone (B) spiral shell rib spacing be sequentially reduced, two sections of the transition (F)
Spiral shell rib spacing be greater than or equal to the spiral shell rib spacing of melt zone (B), the spiral shell rib spacing of the homogenizing zone (C) is greater than two sections of transition
(F) spiral shell rib spacing, the spiral shell rib spacing of the material extrusion section (D) are less than the spiral shell rib spacing of homogenizing zone (C) and are greater than two sections of transition (F)
Spiral shell rib spacing, the feed zone (A), one section of transition (E), melt zone (B), two sections of transition (F), homogenizing zone (C) and material extrusion section
(D) spiral shell rib is mutually interrupted setting, and the interruption distance (K) of the adjacent spiral shell rib section of any two is 20~40mm.
2. extrusion screw rod according to claim 1, it is characterised in that: the spiral shell rib maximum spiral shell diameter (t) on the feed zone (A)
It is -0.05 for 295mm tolerance, the both ends length (H) of the cone-shaped rod body (1) is 4240mm, the rear and front end distance (P) of spiral shell rib
For 3835mm.
3. extrusion screw rod according to claim 1, it is characterised in that: the melt zone (B) include melting one section (B1) with
Two sections (B2) is melted, one section of spiral shell rib width (L4) is melted and is greater than two sections of spiral shell rib width (L5) of melting, melt one section of spiral shell rib spacing
(S4) it is greater than two sections of spiral shell rib spacing (S5) of melting, melts two sections of junction and the melting of one section (B1) and two sections of melting (B2)
(B2) spiral helicine backflash (2) are axially provided on；The backflash (2) is arranged along the body of rod circle spacing, the backflash
(2) quantity is 3~7, and the width (T) of the backflash (2) is 30~37mm.
4. extrusion screw rod according to claim 3, it is characterised in that: the backflash (2) is divided into leading portion backflash with after
The axial length ratio of section backflash, leading portion backflash and back segment backflash is 3: 5, and the depth of back segment backflash remains unchanged, after
Duan Huiliu groove depth (M) is 32mm, and the depth of leading portion backflash becomes larger, and the front end depth (N1) of leading portion backflash is 5mm,
The rear end depth (N2) of leading portion backflash is 32mm.
5. extrusion screw rod according to claim 3, it is characterised in that: described one section of spiral shell rib width (L4) of melting is 9.5mm,
Described one section of spiral shell rib spacing (S4) of melting is 34mm, and described two sections of spiral shell rib width (L5) of melting are 7.5mm, two sections of spiral shells of the melting
Rib spacing (S5) is 30mm, melt the junction of one section (B1) and melting two sections (B2) and the axial length of two sections of melting (B2) and
For 400mm, the axial length of the melting one section (B1) is 300mm, and the axial length of the melting two sections (B2) is 330mm.
6. extrusion screw rod according to claim 1, it is characterised in that: the feed zone (A) be divided into charging one section (A1) with
Two sections (A2) is fed, feeding one section of spiral shell rib width (L1) is 20mm, and feeding one section of spiral shell rib spacing (S1) is 58mm, feeds two sections of spiral shells
Rib width (L2) is 15mm, and feeding two sections of spiral shell rib spacing (S2) is 48mm.
7. extrusion screw rod according to claim 1, it is characterised in that: one section of spiral shell rib width (L3) of transition is 12mm, transition
One section of spiral shell rib spacing (S3) is 40mm, and the axial length of the transition one section (E) is 365mm；Two sections of spiral shell rib width (L6) of transition
For 20mm, two sections of spiral shell rib spacing (S6) of transition are 58mm, and the axial length of the transition two sections (F) is 130mm.
8. extrusion screw rod according to claim 1, it is characterised in that: the material extrusion section (D) includes one section of material extrusion (D1), is squeezed
Expect two sections (D2) and three sections of material extrusion (D3), one section of spiral shell rib width (L8) of material extrusion is 17mm, and one section of spiral shell rib spacing (S8) of material extrusion is
68mm, two sections of spiral shell rib width (L9) of material extrusion are 18.8mm, and two sections of spiral shell rib spacing (S9) of material extrusion are 72mm, three sections of spiral shell rib width of material extrusion
It (L0) is 20mm, three sections of spiral shell rib spacing (S0) of material extrusion are 75mm.
9. extrusion screw rod according to claim 8, it is characterised in that: the axial length of the material extrusion section (D) is 1180mm,
The axial length of the material extrusion one section (D1) is 370mm, and the axial length of the material extrusion two sections (D2) is 380mm, the material extrusion
The axial length of three sections (D3) is 430mm；Homogenizing zone spiral shell rib width (L7) is 28mm, and homogenizing zone spiral shell rib spacing (S7) is 95mm,
The axial length of the homogenizing zone (C) is 600mm.
10. extrusion screw rod according to claim 1, it is characterised in that: the feed zone (A), one section of transition (E), melting
Section (B), two sections of transition (F), in homogenizing zone (C) and material extrusion section (D) spiral shell rib along central axis place plane radial section it is oblique
Angle (ω) between side and vertical reference line is followed successively by 3 °, 5 °, 5 °, 5 °, 12 ° and 16 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821018359.1U CN208468999U (en) | 2018-06-14 | 2018-06-14 | A kind of extrusion screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821018359.1U CN208468999U (en) | 2018-06-14 | 2018-06-14 | A kind of extrusion screw rod |
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| Publication Number | Publication Date |
|---|---|
| CN208468999U true CN208468999U (en) | 2019-02-05 |
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ID=65212096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821018359.1U Active CN208468999U (en) | 2018-06-14 | 2018-06-14 | A kind of extrusion screw rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239059A (en) * | 2019-08-01 | 2019-09-17 | 安徽普瑞斯电工机械有限公司 | High-flame-retardance low-smoke halogen-free cable material squeezes out bolt special |
-
2018
- 2018-06-14 CN CN201821018359.1U patent/CN208468999U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239059A (en) * | 2019-08-01 | 2019-09-17 | 安徽普瑞斯电工机械有限公司 | High-flame-retardance low-smoke halogen-free cable material squeezes out bolt special |
| CN110239059B (en) * | 2019-08-01 | 2023-10-13 | 安徽普瑞斯电工机械有限公司 | Special screw rod for extruding high-flame-retardant low-smoke halogen-free cable material |
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