CN104526996B - High-shearing and high-mixing plastified screw rod - Google Patents
High-shearing and high-mixing plastified screw rod Download PDFInfo
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- CN104526996B CN104526996B CN201410777512.9A CN201410777512A CN104526996B CN 104526996 B CN104526996 B CN 104526996B CN 201410777512 A CN201410777512 A CN 201410777512A CN 104526996 B CN104526996 B CN 104526996B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/60—Screws
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a high-shearing and high-mixing plastified screw rod. The high-shearing and high-mixing plastified screw rod comprises a screw rod main body, wherein the screw rod main body is sequentially provided with a connection section, a fixed section, a feeding section, a compression section, a double-thread fusing section, a mixing section and a discharging section; the double-thread fusing section is provided with a main thread and a secondary thread; the bottom of a main thread groove is the surface of a core column, the outer diameter of the bottom of a secondary thread groove keeps unchanged and the bottom of the secondary thread groove is higher than the surface of the core column; the groove width of the secondary thread groove is gradually increased from left to right and then is suddenly reduced at the right end; the mixing section comprises a first mixing section and a second mixing section; each of the first mixing section and the second mixing section is provided with an inclined groove; when a fused body passes through the double-thread fusing section, the fused body is subjected to high shearing and then is fused so that the plastifying capability is increased; fused plastic is pushed forwards through the secondary thread groove and unfused plastic is further compressed by the main thread groove so that the better plastifying effect is realized; the mixing section is used for carrying out sufficient stirring and flow distribution on the fused body so that additives including color powder, master batches and the like in a plastified body can be more effectively and uniformly distributed, the mixing effect is increased, and the quality and yield of the product are improved.
Description
Technical field
The present invention relates to for the screw rod on injection machine, referring in particular to a kind of high shear high mixing plasticized screw.
Background technology
Screw rod is one of key components and parts of injection machine, and it rotates in the machine barrel of injection machine, and Main Function exactly will be consolidated
The plastic particles of state or plastics powder, become molten state through conveying compacting, fusion plastification；But nowadays general screw rod, its
Poor to the shearing of raw material and additive, melting effect, lead to raw material and additive fail to be sufficiently mixed in expects pipe molten
Melt, and, the mixing behavior that screw rod is not good enough is also difficult to ensure that raw material and additive uniformly mix, and have impact on end product quality.
Therefore, it is badly in need of working out a kind of new technical scheme to solve foregoing problems.
Content of the invention
In view of this, the present invention is directed to the disappearance of prior art presence, and its main purpose is to provide a kind of high shear high mixed
Refining plasticized screw, it, particularly by the special construction design of double thread melt zone and mixing section, improves the shearing of screw rod, moulds
Change, shunt and melting effect and speed, the plastic product color produced is more uniformly distributed, and improves product quality and yield.
For achieving the above object, the present invention is using following technical scheme：
A kind of high shear high mixing plasticized screw, includes screw body, this screw body sets gradually from left to right
There are linkage section, canned paragraph, pan feeding section, compression section, double thread melt zone, mixing section and discharging section, and its respective maximum outside diameter
All equal；
This pan feeding section, compression section, double thread melt zone and mixing section all include stem stem, wherein, the stem stem of this pan feeding section
For minimal segment and keep constant, the stem stem of this mixing section is largest segment and keeps constant, and each stem stem is from left to right gradually for remaining
Become big；On this pan feeding section, the stem stem of compression section, spiral is provided with single thread；Main spiral shell is provided with the stem stem of this double thread melt zone
Line and deputy thread, both of which extends in the shape of a spiral from left to right, correspondingly forms main screw channel and secondary screw channel, the bottom of this main screw channel
Portion is the surface of corresponding stem stem, and the bottom of this secondary screw channel is higher than stem stem surface, and the bottom external diameter of secondary screw channel keeps constant, this pair
The groove width of screw channel is in structure that is gradually big and die-offing in right-hand member from left to right；
This mixing section includes along screw body the first mixing section that direction sets gradually from left to right and the second mixing section,
It is provided with groove between first, between this first mixing section and second mixing section between this first mixing section and aforementioned double thread melt zone
It is provided with second groove, between this second mixing section and discharging section, be provided with groove between the 3rd；This first mixing section and second mixes
Refining Duan Shangjun is provided with inclined groove along helical circumferential, and both inclined grooves are crisscross arranged successively, this first mixing section and
On second mixing section, corresponding inclined groove connects the Z-shaped runner of formation with second groove；
Helicitic texture is provided with this discharging section and the end of discharging section is in conical structure.
As a kind of preferred version, the bottom external diameter of described main screw channel is from left to right successively gradually greatly to itself and secondary screw channel bottom
Flush split.
As a kind of preferred version, the length of described pan feeding section is 375 millimeters, and the length of described compression section is 52 millimeters,
The length of described double thread melt zone is 500 millimeters, and between described first and second and three, the length of groove is 8 millimeters, and described first mixes
The length of refining section and the second mixing section is 30 millimeters.
As a kind of preferred version, the stem stem external diameter of described compression section is 36 millimeters, the external diameter of described double thread melt zone
From 36 millimeters of gradual changes to 45 millimeters.
As a kind of preferred version, the angle of inclination of the inclined groove on described first mixing section and the second mixing section is 30
Degree.
As a kind of preferred version, for 8 millimeters at the groove width two ends minimum of described pair screw channel.
The present invention compared with prior art has clear advantage and beneficial effect, specifically, by technique scheme
Understand, it mainly passes through the special construction design of double thread melt zone and mixing section, improve the shearing of screw rod, plasticizing, divide
Stream and melting effect and speed；When melt passes through double thread melt zone, melted by high shear, increase plasticizing capacity, molten
The plastics changed are pushed ahead through secondary screw channel, and unfused plastics then compress further through main screw channel, reach more preferable plasticizing effect
Really；Mixing section then is sufficiently stirred by melt, is shunted, and the significantly more efficient toner allowing in plastomer, color masterbatch etc. are added
Agent is uniformly distributed with plastics, increases its melting effect, and the plastic product color produced is more uniformly distributed, improve product quality and
Yield.
For more clearly illustrating architectural feature and effect of the present invention, come to this with specific embodiment below in conjunction with the accompanying drawings
Bright it is described in detail.
Brief description
Fig. 1 is the configuration diagram of embodiments of the present invention；
Fig. 2 is the cross section structure diagram at A-A in Fig. 1；
Fig. 3 is the cross section structure diagram at B-B in Fig. 1；
Fig. 4 is the partial enlargement configuration diagram at I in Fig. 1；
Fig. 5 is the partial enlargement configuration diagram at II in Fig. 1；
Fig. 6 is the partial enlargement configuration diagram at III in Fig. 1；
Fig. 7 is the cross section structure diagram at C-C in Fig. 6；
Fig. 8 is the cross section structure diagram at N-N in Fig. 1.
Accompanying drawing identifier declaration：
10th, linkage section 20, canned paragraph
30th, pan feeding section 40, compression section
50th, double thread melt zone 51, main screw channel
52nd, secondary screw channel 60, mixing section
61st, the first mixing section 62, the second mixing section
601st, inclined groove 602, Z-shaped runner
70th, discharging section 71, conical structure
81st, 82, second groove of first groove
83rd, the 3rd groove.
Specific embodiment
Refer to shown in Fig. 1 to Fig. 8, that show the concrete structure of embodiments of the present invention, the high mixing of this high shear
Plasticized screw, includes screw body, and this screw body is disposed with linkage section 10, canned paragraph 20, pan feeding from left to right
Section 30, compression section 40, double thread melt zone 50, mixing section 60 and discharging section 70, and its respective maximum outside diameter is all equal.
This pan feeding section 10, compression section 20, double thread melt zone 50 and mixing section 60 all include stem stem, wherein, this pan feeding
The stem stem of section 10 is minimal segment and keeps constant, and the stem stem of this mixing section 60 is largest segment and keeps constant, remaining respective stem stem
Become larger from left to right；On this pan feeding section 10, the stem stem of compression section 40, spiral is provided with single thread；As shown in figure 3, pan feeding section
, from about quarter turn, its initial end face is tangentially perpendicular with periphery for 10 screw thread, is conducive to the positive propulsion of material；
Main thread and deputy thread are provided with the stem stem of this double thread melt zone 50, both of which is prolonged in the shape of a spiral from left to right
Stretch, correspondingly form main screw channel 51 and secondary screw channel 52；The bottom of this main screw channel 51 is the surface of corresponding stem stem, this secondary screw channel 52
Bottom be higher than stem stem surface, and the bottom external diameter of secondary screw channel 52 keeps constant, and the groove width of this secondary screw channel 52 is in gradually from left to right
Structure that is big and die-offing in right-hand member, the bottom external diameter of described main screw channel 51 is from left to right successively gradually greatly to itself and secondary screw channel 52 bottom
Flush split（In conjunction with shown in Fig. 1 and Fig. 6）；
As shown in Figure 4 and Figure 5, the left side of aforementioned each screw thread is designed with arc-shaped transitional surface and spreads out being connected to thread periphery face and core
Between post outer diameter face, and the arc diameter on the left of it is significantly greater than right circular arc, is conducive to material to guide propulsion from left to right；
By aforementioned double thread structure design, melt is subject to high shear to melt, and increases plasticizing capacity, also increases material
Conduction surface and between screw rod, thus improve melting rate, meanwhile, effectively realizing solid-state in melting process and mutually dividing with melt
From the plastics of fusing are pushed ahead through secondary screw channel, and unfused plastics then compress further through main screw channel, reach preferably
Plasticizing effect；Its plasticizing efficiency is high, decrease energy consumption, and its yield, pressure, temperature fluctuation are little, is conducive to improving screw speed,
Improve yield.
This mixing section 60 includes mixed along screw body the first mixing section 61 and second that direction sets gradually from left to right
Refining section 62, is provided with groove 81 between first between this first mixing section 61 and aforementioned double thread melt zone 50, this first mixing section 61
With second be provided with groove 82 between second between mixing section 62, it is provided between the 3rd between this second mixing section 62 and discharging section 70
Groove 83；All helical circumferential is provided with inclined groove 601 on this first mixing section 61 and the second mixing section 62（In conjunction with Fig. 1 and Fig. 8
Shown）, and both inclined grooves 601 are crisscross arranged successively, and this first mixing section 61 and the second mixing section 62 incline accordingly
Oblique groove 601 connects the Z-shaped runner of formation with second groove 82；The inclined groove 601 through the first mixing section 61 for the raw material of melting, the
Two grooves 82 enter the corresponding inclined groove 601 of the second mixing section 62 and flow out, the inclined groove 601 that it is crisscross arranged, and allow molten
Body is sufficiently stirred, is shunted, and the additive such as the significantly more efficient toner allowing in plastomer, color masterbatch and plastics are uniformly distributed, and increase
Plus its melting effect.
And, this discharging section 70 is provided with helicitic texture and the end of discharging section is in conical structure 71, its cone
The design of structure 71, is conducive to smooth discharging.
In the present embodiment, the length to screw rod and its each section of size design, all should through analysis of experiments and actual production
Comprehensively obtained with experience, specifically：1490 millimeters of described screw body total length, the length of described pan feeding section 30 is 375 millimeters,
The length of described compression section 40 is 52 millimeters, and the length of described double thread melt zone 50 is 500 millimeters, described first groove 81,
Between second groove 82 and the 3rd, the length of groove 83 is 8 millimeters, and the length of described first mixing section 61 and the second mixing section 62 is equal
For 30 millimeters, for 8 millimeters at the groove width two ends minimum of described pair screw channel 52, on described first mixing section 61 and the second mixing section 62
The angle of inclination of inclined groove 601 be 30 degree, the stem stem external diameter of described compression section 40 is 36 millimeters, described double thread melt zone
50 outer 36 millimeters of gradual changes without leave are to 45 millimeters.
The design focal point of the present invention is, it mainly passes through the special construction design of double thread melt zone and mixing section,
Improve shearing, plasticizing, shunting and melting effect and the speed of screw rod；When melt passes through double thread melt zone, by high shear
And melt, increase plasticizing capacity, the plastics of fusing are pushed ahead through secondary screw channel, unfused plastics are then made into one through main screw channel
Step compression, reaches more preferable plasticizing effect；Mixing section then is sufficiently stirred by melt, is shunted, and significantly more efficient allows
The additives such as the toner in plastomer, color masterbatch and plastics are uniformly distributed, and increase its melting effect, and the plastic product color produced is more
For uniform, improve product quality and yield.
The above, be only presently preferred embodiments of the present invention, not the technical scope of the present invention imposed any restrictions,
Therefore any trickle amendment, equivalent variations and modification that every technical spirit according to the present invention is made to above example, all still
Belong in the range of technical solution of the present invention.
Claims (1)
1. a kind of high shear high mixing plasticized screw it is characterised in that：Include screw body, on this screw body from left to right
It is disposed with linkage section, canned paragraph, pan feeding section, compression section, double thread melt zone, mixing section and discharging section, and it is respective
Maximum outside diameter is all equal；
This pan feeding section, compression section, double thread melt zone and mixing section all include stem stem, and wherein, the stem stem of this pan feeding section is
Segment and keep constant, the stem stem of this mixing section is largest segment and keeps constant, remaining each stem stem become larger from left to right；
On this pan feeding section, the stem stem of compression section, spiral is provided with single thread；Be provided with the stem stem of this double thread melt zone main thread and
Deputy thread, both of which extends in the shape of a spiral from left to right, correspondingly forms main screw channel and secondary screw channel, the bottom of this main screw channel is
The surface of corresponding stem stem, the bottom of this secondary screw channel is higher than stem stem surface, and the bottom external diameter of secondary screw channel keeps constant, this secondary screw channel
Groove width be in structure that is gradually big and die-offing in right-hand member from left to right；The bottom external diameter of described main screw channel is from left to right successively gradually greatly extremely
It flushes split with secondary screw channel bottom；
This mixing section includes along screw body the first mixing section that direction sets gradually from left to right and the second mixing section, and this
It is provided with groove between first between one mixing section and aforementioned double thread melt zone, be all provided between this first mixing section and second mixing section
It is equipped with second groove, between this second mixing section and discharging section, be provided with groove between the 3rd；This first mixing section and the second mixing section
Above all helical circumferential is provided with inclined groove, and both inclined grooves are crisscross arranged successively, this first mixing section and second
On mixing section, corresponding inclined groove connects the Z-shaped runner of formation with second groove；
Helicitic texture is provided with this discharging section and the end of discharging section is in conical structure；
The length of described pan feeding section is 375 millimeters, and the length of described compression section is 52 millimeters, the length of described double thread melt zone
For 500 millimeters, between described first and second and three, the length of groove is 8 millimeters, the length of described first mixing section and the second mixing section
It is 30 millimeters；
The stem stem external diameter of described compression section is 36 millimeters, and outer 36 millimeters of gradual changes without leave of described double thread melt zone are to 45 millimeters；
The angle of inclination of the inclined groove on described first mixing section and the second mixing section is 30 degree；
For 8 millimeters at the groove width two ends minimum of described pair screw channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777512.9A CN104526996B (en) | 2014-12-17 | 2014-12-17 | High-shearing and high-mixing plastified screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777512.9A CN104526996B (en) | 2014-12-17 | 2014-12-17 | High-shearing and high-mixing plastified screw rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104526996A CN104526996A (en) | 2015-04-22 |
| CN104526996B true CN104526996B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410777512.9A Active CN104526996B (en) | 2014-12-17 | 2014-12-17 | High-shearing and high-mixing plastified screw rod |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328868B (en) * | 2015-11-13 | 2018-08-21 | 积康螺杆制造（上海）股份有限公司 | A kind of screw vortex mixing nozzle |
| CN106955641B (en) * | 2017-04-22 | 2019-05-07 | 舟山德凯塑料机械有限公司 | It is a kind of to be granulated dedicated prestressing force extrusion screw rod using solid waste |
| CN107914372A (en) * | 2017-12-18 | 2018-04-17 | 苏州川鹏塑料有限公司 | The plasticizing apparatus that can be kneaded at a high speed |
| CN117549487B (en) * | 2024-01-11 | 2024-04-12 | 成都鸿能精密机械有限公司 | Shuttle valve assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19928870C2 (en) * | 1999-06-24 | 2003-10-02 | Extrudex Kunststoffmaschinen G | Single-screw extruder |
| JP2005169669A (en) * | 2003-12-08 | 2005-06-30 | Nissei Plastics Ind Co | Plasticizing screw |
| CN202225400U (en) * | 2011-03-07 | 2012-05-23 | 广州一道注塑机械有限公司 | High-rotation-speed injection screw rod |
| CN203031883U (en) * | 2012-11-21 | 2013-07-03 | 无锡海天机械有限公司 | Mixed screw of injection molding machine |
| CN203919666U (en) * | 2014-04-30 | 2014-11-05 | 泉州东方机械有限公司 | The high extruder screw that mixes of a kind of high shear |
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- 2014-12-17 CN CN201410777512.9A patent/CN104526996B/en active Active
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| CN104526996A (en) | 2015-04-22 |
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