CN107584745A - A kind of extrusion screw - Google Patents
A kind of extrusion screw Download PDFInfo
- Publication number
- CN107584745A CN107584745A CN201710968934.8A CN201710968934A CN107584745A CN 107584745 A CN107584745 A CN 107584745A CN 201710968934 A CN201710968934 A CN 201710968934A CN 107584745 A CN107584745 A CN 107584745A
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- Prior art keywords
- spiral shell
- shell rib
- zone
- sections
- rib
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Abstract
A kind of extrusion screw,Including the body of rod,The body of rod is divided into feed zone,Melt zone,Homogenizing zone and extruding zone,The diameter of the body of rod is gradually reduced from feed zone to extruding zone,Melt zone is by one section of melting,Three sections of compositions of two sections of melting and melting,One section of melting,The 3rd spiral shell rib is set respectively in three sections of two sections of melting and melting,4th spiral shell rib and the 5th spiral shell rib,5th spiral shell rib,The spiral shell rib width of 3rd spiral shell rib and the 4th spiral shell rib,Spiral shell rib spacing is sequentially reduced and equal respectively in same spiral shell rib section in different spiral shell rib sections,On the 4th spiral shell rib the first groove is arranged at intervals along spiral shell rib direction,Homogenizing zone is made up of two sections of one section of homogenizing and homogenizing,The 6th spiral shell rib and the 7th spiral shell rib are respectively arranged with two sections of one section of homogenizing and homogenizing,The spiral shell rib spacing of 6th spiral shell rib is more than the spiral shell rib spacing of the 7th spiral shell rib,9th spiral shell rib is set on extruding zone,On the 9th spiral shell rib the second groove is arranged at intervals along spiral shell rib direction.It the advantage is that：Realize that material fully melts, avoid feed blocking, the gas in extruded material, make material plasticizing uniform.
Description
Technical field
The present invention relates to a kind of screw rod manufacture technology field, a kind of especially extrusion screw.
Background technology
A kind of existing Patent No. CN201410847416.7 is entitled《High speed extrusions screw rod》Chinese invention patent it is public
A kind of High speed extrusions screw rod has been opened, especially can not only be effective with the High speed extrusions screw rod of mariages muscle non-equidistant structure, the screw rod
Increase inlet amount reduce feeding-passage space, and the speed and yield of extruding machine production plastics can be improved.Its technical scheme
It is：The screw muscle of more than two is provided with extrusion screw, and the spiral spacing of screw muscle is sized to unequal spiral shell
Rotation distance, make to have held small spacing flight and big spacing flight before, during and after screw rod, can effectively improve material extrusion speed,
And favourable plastic hot melt, reach the purpose for improving plastics-production quality and yield.Beneficial effect is；Improve plastic extruder
Plastic extrusion speed and performance, productive power is saved, save the production time, reduce production cost, improve productivity effect.However,
The spiral spacing of the screw rod is not that order increase or order reduce, and influences the shear effect of plastics, the body of rod of screw rod lacks diameter
The change of size, the pressure change that plastics are subject to are not enough to plastics and fully melted, and discharging is not uniform enough, and using effect is undesirable,
Therefore the structure of the screw rod also needs further to improve.
The content of the invention
The technical problems to be solved by the invention be for above-mentioned state of the art and to provide a kind of plastic molten melt abundant,
Extrude uniform extrusion screw.
Technical scheme is used by the present invention solves above-mentioned technical problem：This extrusion screw, including the body of rod, the body of rod
It is divided into feed zone, melt zone, homogenizing zone and extruding zone, the feed zone, melt zone, homogenizing zone on extruding zone with being provided with spiral shell
Rib, it is characterised in that：The diameter of the body of rod is gradually reduced from feed zone to extruding zone, and the melt zone is by melting one section, melting
Melt two sections and three sections of compositions of melting, the 3rd spiral shell rib is respectively arranged with three sections of one section of the melting, two sections of melting and melting, the 4th
The spiral shell rib width of spiral shell rib and the 5th spiral shell rib, the 5th spiral shell rib, the 3rd spiral shell rib and the 4th spiral shell rib, spiral shell rib spacing are in different spiral shell rib sections
It is sequentially reduced and equal respectively in same spiral shell rib section, is arranged at intervals on the 4th spiral shell rib along spiral shell rib direction and is improved plastic molten melt
First groove of effect, the homogenizing zone are made up of two sections of one section of homogenizing and homogenizing, described to be homogenized one section and upper point of two sections of homogenizing
The 6th spiral shell rib and the 7th spiral shell rib are not provided with, and the spiral shell rib spacing of the 6th spiral shell rib is more than the spiral shell rib spacing of the 7th spiral shell rib, described
The 9th spiral shell rib is provided with extruding zone, the second groove is arranged at intervals with along spiral shell rib direction on the 9th spiral shell rib.
As an improvement, the 3rd spiral shell rib spiral shell rib width be preferably 7~9mm, the 4th spiral shell rib spiral shell rib width is preferably 5~
7mm, the 5th spiral shell rib spiral shell rib width are preferably 9~11mm；3rd spiral shell rib spiral shell rib spacing is preferably 22~24mm, the 4th spiral shell rib
Spiral shell rib spacing is preferably 20~22mm, and the 5th spiral shell rib spiral shell rib spacing is preferably 30~32mm.
Further improve, first groove is preferably equally spaced arranged in circumference formed by the 4th spiral shell rib axis projection
On, the A/F of first groove is 22~25mm, and the depth of first groove is 22~25mm.
As an improvement, be also preferably provided with the 8th spiral shell rib in two sections of the homogenizing, the end of the 7th spiral shell rib and the
The smooth end of eight spiral shell ribs is connected, and the 6th spiral shell rib spiral shell rib spacing is 55~60mm, and the 7th spiral shell rib spiral shell rib spacing is 45~50mm,
8th spiral shell rib spiral shell rib spacing is 47~52mm.
Further improve, the 6th spiral shell rib spiral shell rib width is preferably 18~20mm, and the 7th spiral shell rib spiral shell rib width is preferably
13~15mm, the 8th spiral shell rib spiral shell rib width are preferably 13~15mm.
As an improvement, the feed zone is preferably divided into two sections of one section of charging and charging, it is described to feed one section and charging two
The first spiral shell rib and the second spiral shell rib are respectively arranged with section, the end of the first spiral shell rib is connected with the smooth end of the second spiral shell rib
Connect, the first spiral shell rib spiral shell rib spacing is 30~35mm, and the second spiral shell rib spiral shell rib spacing is 25~30mm.
Further improve, the first spiral shell rib spiral shell rib width is preferably 12~15mm, and the second spiral shell rib spiral shell rib width is preferably 7
~10mm.
As an improvement, the 9th spiral shell rib spiral shell rib spacing is preferably 135~140mm, the recess width of second groove can
Preferably 22~25mm.
As an improvement, the melt zone, homogenizing zone is preferably made up with extruding zone of alloy, the surface of the extrusion screw
Nitration case is preferably provided with, the thickness of the nitration case is preferably 0.4~0.7mm.
As an improvement, the rear end core of the body of rod is preferably provided with oil temperature adjusting means.
Compared with prior art, the present invention is made up of using melt zone three sections of one section of melting, two sections of melting and melting, described
The 3rd spiral shell rib, the 4th spiral shell rib and the 5th spiral shell rib, the 5th spiral shell are respectively arranged with three sections of one section of melting, two sections of melting and melting
The spiral shell rib width of rib, the 3rd spiral shell rib and the 4th spiral shell rib, spiral shell rib spacing are sequentially reduced in different spiral shell rib sections and in same spiral shell rib section
It is equal respectively, it is arranged at intervals with the first groove along spiral shell rib direction on the 4th spiral shell rib, is the advantages of this structure：Material is molten
Melt section by continually changing external pressure, realize fully melting, be provided with the melting very close opening position of two sections of materials
First groove, improve the relative flow of material internal layer and outer layer, avoid material from being stagnated under hyperbaric environment and block, make material suitable
Profit enters three sections of melting, and the A/F of the first groove is close or equal with depth, to the conveying capacity of material melts body
It is suitable with the melt capacity to material melts body, avoid non-fused materials from entering homogenizing zone, final product quality is more preferable；The spiral shell of homogenizing zone
Rib distance is big, is advantageous to matter homogenizing, material is successively by uniform one section and uniform two sections, uniform one section and uniform two sections
On the 6th spiral shell rib, the 7th spiral shell rib, the 8th spiral shell rib spiral shell rib spacing and spiral shell rib width gradually change, make the extruding force that material is subject to by
Cumulative big, gas that can be effectively in extruded material makes material plasticizing uniform；It is recessed that second is arranged at intervals with the spiral shell rib of extruding zone
Groove, material is set to plastify and be well mixed completely.
Brief description of the drawings
Fig. 1 is the front projection figure of the embodiment of the present invention；
Fig. 2 is the enlarged drawing of I parts in Fig. 1；
Fig. 3 is the enlarged drawing of II parts in Fig. 1；
Fig. 4 is the enlarged drawing of III parts in Fig. 1；
Fig. 5 is the enlarged drawing of IV parts in Fig. 1；
Fig. 6 is along the sound face figure of line A-A in Fig. 3.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figures 1 to 6, the extrusion screw of the present embodiment, including the body of rod 1, the body of rod 1 divide for feed zone A, melting
Spiral shell rib, the bar are provided with section B, homogenizing zone C and extruding zone D, the feed zone A, melt zone B, homogenizing zone C and extruding zone D
The diameter of body 1 is gradually reduced from feed zone A to extruding zone D, and the melt zone B is by melting one section of B1, two sections of B2 of melting and melting
The 3rd spiral shell rib 13, the 4th spiral shell are respectively arranged with three sections of B3 compositions, two sections of one section of B1 of the melting, melting B2 and three sections of B3 of melting
The spiral shell rib width of the spiral shell rib 15 of rib 14 and the 5th, the 5th spiral shell rib 15, the 3rd spiral shell rib 13 and the 4th spiral shell rib 14, spiral shell rib spacing be not
It is sequentially reduced with spiral shell rib section and equal respectively in same spiral shell rib section, is arranged at intervals with and carries along spiral shell rib direction on the 4th spiral shell rib 14
First groove 141 of high plastic molten melt effect, the homogenizing zone C are made up of two sections of C2 of one section of C1 of homogenizing and homogenizing, the homogenizing
The 6th spiral shell rib 16 and the 7th spiral shell rib 17, the spiral shell rib spacing of the 6th spiral shell rib 16 are respectively arranged with two sections of C2 of one section of C1 and homogenizing
More than the spiral shell rib spacing of the 7th spiral shell rib 17, the 9th spiral shell rib 19 is provided with the extruding zone D, along spiral shell rib side on the 9th spiral shell rib 19
To being arranged at intervals with the second groove 191.3rd spiral shell rib spiral shell rib width L3 is 7~9mm, the 4th spiral shell rib spiral shell rib width L4 is 5~
7mm, the 5th spiral shell rib spiral shell rib width L5 is 9~11mm；3rd spiral shell rib spiral shell rib interval S 3 is 22~24mm, the 4th spiral shell rib spiral shell rib spacing
S4 is 20~22mm, and the 5th spiral shell rib spiral shell rib interval S 5 is 30~32mm.First groove 141 is equally spaced arranged in the 4th spiral shell
Formed by the axis projection of rib 14 on circumference, the A/F T1 of first groove 141 is 22~25mm, first groove
141 depth M is 22~25mm.The 8th spiral shell rib 18, the end of the 7th spiral shell rib 17 are additionally provided with two sections of C2 of the homogenizing
It is connected with the smooth end of the 8th spiral shell rib 18, the 6th spiral shell rib spiral shell rib interval S 6 is 55~60mm, the 7th spiral shell rib spiral shell rib interval S 7
For 45~50mm, the 8th spiral shell rib spiral shell rib interval S 8 is 47~52mm.6th spiral shell rib spiral shell rib width L6 is 18~20mm, the 7th spiral shell rib
Spiral shell rib width L7 is 13~15mm, and the 8th spiral shell rib spiral shell rib width L8 is 13~15mm.The feed zone A point for one section of A1 of charging with
Two sections of A2 are fed, described one section of A1 of charging is described with being respectively arranged with the first spiral shell rib 11 and the second spiral shell rib 12 on two sections of A2 of charging
The end of first spiral shell rib 11 is connected with the smooth end of the second spiral shell rib 12, and the first spiral shell rib spiral shell rib interval S 1 is 30~35mm, the
Two spiral shell rib spiral shell rib interval Ss 2 are 25~30mm.First spiral shell rib spiral shell rib width L1 is 12~15mm, and the second spiral shell rib spiral shell rib width L2 is 7
~10mm.9th spiral shell rib spiral shell rib interval S 9 is 135~140mm, and the recess width T2 of second groove 191 is 22~25mm.
The melt zone B, homogenizing zone C are made up with extruding zone D of alloy, and the surface of the extrusion screw is provided with nitration case, the nitrogen
The thickness for changing layer is 0.4~0.7mm.The rear end core of the body of rod 1 is provided with oil temperature adjusting means.
Claims (10)
1. a kind of extrusion screw, including the body of rod (1), the body of rod (1) is divided into feed zone (A), melt zone (B), homogenizing zone (C) with
Extruding zone (D), the feed zone (A), melt zone (B), with being provided with spiral shell rib on extruding zone (D), its feature exists homogenizing zone (C)
In：The diameter of the body of rod (1) is gradually reduced from feed zone (A) to extruding zone (D), and the melt zone (B) is by one section of melting
(B1) two sections (B2) and three sections of melting (B3) composition, three sections of the melting one section (B1), melting two sections (B2) and melting, are melted
(B3) it is respectively arranged with the 3rd spiral shell rib (13), the 4th spiral shell rib (14) and the 5th spiral shell rib (15) on, the 5th spiral shell rib (15), the 3rd
The spiral shell rib width of spiral shell rib (13) and the 4th spiral shell rib (14), spiral shell rib spacing are sequentially reduced in different spiral shell rib sections and in same spiral shell rib section
It is equal respectively, the first groove (141) for being improved plastic molten melt effect is arranged at intervals along spiral shell rib direction on the 4th spiral shell rib (14),
The homogenizing zone (C) is formed by being homogenized one section (C1) and homogenizing two sections (C2), the homogenizing one section (C1) and homogenizing two sections (C2)
On be respectively arranged with the 6th spiral shell rib (16) and the 7th spiral shell rib (17), the spiral shell rib spacing of the 6th spiral shell rib (16) is more than the 7th spiral shell rib
(17) spiral shell rib spacing, the 9th spiral shell rib (19) is provided with the extruding zone (D), along between spiral shell rib direction on the 9th spiral shell rib (19)
Every being provided with the second groove (191).
2. extrusion screw according to claim 1, it is characterised in that：3rd spiral shell rib spiral shell rib width (L3) is 7~9mm, the
Four spiral shell rib spiral shell rib width (L4) are 5~7mm, and the 5th spiral shell rib spiral shell rib width (L5) is 9~11mm；3rd spiral shell rib spiral shell rib spacing (S3)
For 22~24mm, the 4th spiral shell rib spiral shell rib spacing (S4) is 20~22mm, and the 5th spiral shell rib spiral shell rib spacing (S5) is 30~32mm.
3. extrusion screw according to claim 2, it is characterised in that：First groove (141) is equally spaced arranged in
Formed by 4th spiral shell rib (14) axis projection on circumference, the A/F (T1) of first groove (141) is 22~25mm, institute
The depth (M) for stating the first groove (141) is 22~25mm.
4. according to any described extrusion screw in claims 1 to 3, it is characterised in that：Also set on the homogenizing two sections (C2)
The 8th spiral shell rib (18) is equipped with, the end of the 7th spiral shell rib (17) is connected with the smooth end of the 8th spiral shell rib (18), the 6th spiral shell
Rib spiral shell rib spacing (S6) is 55~60mm, and the 7th spiral shell rib spiral shell rib spacing (S7) is 45~50mm, the 8th spiral shell rib spiral shell rib spacing (S8)
For 47~52mm.
5. extrusion screw according to claim 4, it is characterised in that：6th spiral shell rib spiral shell rib width (L6) is 18~20mm,
7th spiral shell rib spiral shell rib width (L7) is 13~15mm, and the 8th spiral shell rib spiral shell rib width (L8) is 13~15mm.
6. according to any described extrusion screw in claims 1 to 3, it is characterised in that：The feed zone (A) is divided into charging one
Section (A1) and charging two sections (A2), the charging one section (A1) be respectively arranged with two sections of charging (A2) the first spiral shell rib (11) and
Second spiral shell rib (12), the end of the first spiral shell rib (11) are connected with the smooth end of the second spiral shell rib (12), the first spiral shell rib spiral shell
Rib spacing (S1) is 30~35mm, and the second spiral shell rib spiral shell rib spacing (S2) is 25~30mm.
7. extrusion screw according to claim 6, it is characterised in that：First spiral shell rib spiral shell rib width (L1) is 12~15mm,
Second spiral shell rib spiral shell rib width (L2) is 7~10mm.
8. according to any described extrusion screw in claims 1 to 3, it is characterised in that：9th spiral shell rib spiral shell rib spacing (S9) is
135~140mm, the recess width (T2) of second groove (191) is 22~25mm.
9. according to any described extrusion screw in claims 1 to 3, it is characterised in that：The melt zone (B), homogenizing zone (C)
Be made up with extruding zone (D) of alloy, the surface of the extrusion screw is provided with nitration case, the thickness of the nitration case for 0.4~
0.7mm。
10. according to any described extrusion screw in claims 1 to 3, it is characterised in that：The rear end core of the body of rod (1)
It is provided with oil temperature adjusting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968934.8A CN107584745A (en) | 2017-09-28 | 2017-09-28 | A kind of extrusion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968934.8A CN107584745A (en) | 2017-09-28 | 2017-09-28 | A kind of extrusion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107584745A true CN107584745A (en) | 2018-01-16 |
Family
ID=61053994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710968934.8A Withdrawn CN107584745A (en) | 2017-09-28 | 2017-09-28 | A kind of extrusion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107584745A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126236A (en) * | 2019-06-14 | 2019-08-16 | 深圳市畅形增材科技有限公司 | Diameter progressive screw and the thermoplastic granulates material molten extrusion device for using diameter progressive screw |
| CN111791460A (en) * | 2020-07-20 | 2020-10-20 | 诺博橡胶制品有限公司 | Screw and extruder |
-
2017
- 2017-09-28 CN CN201710968934.8A patent/CN107584745A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126236A (en) * | 2019-06-14 | 2019-08-16 | 深圳市畅形增材科技有限公司 | Diameter progressive screw and the thermoplastic granulates material molten extrusion device for using diameter progressive screw |
| CN111791460A (en) * | 2020-07-20 | 2020-10-20 | 诺博橡胶制品有限公司 | Screw and extruder |
| CN111791460B (en) * | 2020-07-20 | 2022-03-25 | 诺博橡胶制品有限公司 | Screw and extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180116 |
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| WW01 | Invention patent application withdrawn after publication |