CN208215971U - A kind of extruder screw - Google Patents
A kind of extruder screw Download PDFInfo
- Publication number
- CN208215971U CN208215971U CN201820605750.5U CN201820605750U CN208215971U CN 208215971 U CN208215971 U CN 208215971U CN 201820605750 U CN201820605750 U CN 201820605750U CN 208215971 U CN208215971 U CN 208215971U
- Authority
- CN
- China
- Prior art keywords
- section
- thread
- extruder screw
- fluxing zone
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of extruder screws, belong to extruder field, being intended to provide a kind of makes the screw rod of material plasticizing more evenly, to solve the problems, such as that material plasticizing is non-uniform, its key points of the technical solution are that screw body, feed zone, fluxing zone and release section, the feed zone that the screw body is set gradually along the direction of motion of material are equipped with the feed well formed by main thread, the release section is outward extended with stirring section, and the stirring section is equipped with the blow tank that single thread is formed.The utility model is suitable for extruder, has the effect of that material plasticizing is more abundant, more uniform.
Description
Technical field
The utility model relates to extruder, in particular to a kind of extruder screw.
Background technique
Screw extruder is the pressure and shearing force generated by screw rod rotation, can material is sufficiently plasticized
And uniformly mixing, it is formed by die head.
The Chinese patent of notification number CN203093021U discloses a kind of extruder screw, including screw body, and feature exists
Middling speed conveying section, quick conveying section and conveying section at a slow speed, the quick conveying section welded on quick conveying section are equipped in screw body
Double polarizing keys are made in screw thread piece.
Although this extruder screw makes material adapt to different temperature changes by three kinds of different speed of setting, mention
High yield quality, but enter the material of quick conveying section sufficiently thawing is just transported to conveying section and then defeated at a slow speed not yet
Out, it causes material plasticizing uneven, reduces product quality.
Utility model content
The purpose of the utility model is to provide a kind of extruder screw, has the effect of making material plasticizing more evenly.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of extruder screw, including screw body, the screw body along the direction of motion of material set gradually into
Expect section, fluxing zone and release section, the feed zone is equipped with the feed well formed by main thread, and the release section is far from fluxing zone
One end be outward extended with stirring section, the stirring section is equipped with the blow tank that single thread is formed.
By using above-mentioned technical proposal, after material enters feed well, under the screw acting of rotation, by machine barrel
It is fed forward and is compacted under the rubbing action on wall and main thread surface.At this point, material is kept substantially solid-state.Material enters plasticizing
Duan Hou, material are started to be plasticized by after the external heating from machine barrel, and the material after plasticizing continues to be fed forward to release section, object
Material enters at stirring section under the action of releasing section screw thread, and stirring section is constantly stirred the material after plasticizing, so that
Material plasticizing is more uniform.Meanwhile material is clamped in blow tank, and it is more convenient that material is delivered to die head, improve extrusion
Efficiency.
Further, the diameter of the stirring section and the diameter of screw body are equal.
By using above-mentioned technical proposal, when the diameter of stirring section is greater than the diameter of screw body, material accumulation is being stirred
Section and screw body junction are mixed, only release section is constantly by material to conveying and could release the material of accumulation at stirring section
To at stirring section, working efficiency is reduced.When the diameter of stirring section is less than the diameter of screw body, material is easy to be deposited in and stir
It mixes at the dead angle that section is connect with screw body, causes material waste.When stirring section diameter is equal with the diameter of screw body, push away
Section conveying material is more convenient out, more smooth, to improve extrusion efficiency.
Further, the development length of the stirring section is 20~30cm.
By using above-mentioned technical proposal, when the length that stirring section extends is too short, the area that material is contacted with stirring section is few,
Material plasticizing effect is poor.When the length that stirring section extends is too long, stirring section extrusion pressure is unstable, to cause load unstable
It is fixed, reduce efficiency.
Further, the fluxing zone is equipped with the first deputy thread, main thread and the first deputy thread on the fluxing zone
Between lead it is identical.
By using above-mentioned technical proposal, the material that fluxing zone will go between the first deputy thread and main thread is further
Compacting and plasticizing, and the air carried secretly in material is pressed back at feed opening and is discharged.Meanwhile material is by the outside from machine barrel
The effects of heating and the stirring of screw body, mixing and shearing, melt film is formed on the inner wall of machine barrel, it is secondary by main thread and first
Screw thread scrapes, and enters between main thread and the first deputy thread, and the material between main thread and the first deputy thread gradually becomes
The fluid of melting, so that the inventory conveyed every time is equal, so that load is more stable.
Further, section of backflowing is equipped between the fluxing zone and release section, the section of backflowing is equipped with the second deputy thread.
By using above-mentioned technical proposal, the fluid foods after plasticizing are entered when backflowing section, the second deputy thread truncation stream
Body material flow forward, fluid under the action of the second deputy thread resistance return to fluxing zone, only when the material of fluxing zone not
Surely it is delivered to section of backflowing, fluid is cumulative, and fluid foods could be continued to be fed forward by pressure after being gradually increased.It backflows section
So that material constantly returns to fluxing zone, so that material plasticizing is more abundant, the quality of product is improved.
Further, the lead between the main thread and the second deputy thread of the section of backflowing is gradually increased.
By using above-mentioned technical proposal, the lead between main thread and the second deputy thread is gradually increased, so that stream every time
Enter to the logistics between main thread and the second deputy thread slot and all gradually increase, the material of return gradually decreases, so that material be made to exist
Meet load in the case of plasticizing more fully to stablize.
Further, the length of the section of backflowing is be plasticized segment length 1/4~1/3.
By using above-mentioned technical proposal, so that the material plasticizing time into fluxing zone is longer, plasticizing is more abundant, together
When can also reduce the fusion time of the material that backflows, improve work efficiency.
Further, the head of the screw body is semicircle.
By using above-mentioned technical proposal, the head of screw body is semicircle, so as to object when material is squeezed out to die head
Material play the guiding role, so that material is not easy reverse flow, improves load.
Further, the groove depth of the screw body is arranged from depth to shallow along the direction of motion of material.
By using above-mentioned technical proposal, the groove depth of screw body feed well improves storing amount, so that into fluxing zone
Material increase, reduce feed time, improve work efficiency；The slot of blow tank is shallow, and the extrusion die for facilitating material to be discharged mentions
High extrusion efficiency.
In conclusion the utility model has the following beneficial effects:
1. using stirring section, so that material be made sufficiently to be plasticized, it is plasticized more uniform；
2. using the first deputy thread, so that the inventory being plasticized every time is equal, so that discharging is more stable, it is not easy
Block extrusion die；
3. using section of backflowing, so that material plasticizing is more abundant, to mention so that material constantly returns to fluxing zone
The quality of high product.
Detailed description of the invention
Fig. 1 be in the present embodiment for embody feed zone, fluxing zone, section of backflowing, release section, the connection between stirring section is closed
It is schematic diagram.
In figure, 1, screw body；11, feed zone；111, main thread；112, feed well；12, fluxing zone；121, first is secondary
Screw thread；13, it backflows section；131, the second deputy thread；14, section is released；15, stirring section；151, blow tank.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Wherein identical components are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
A kind of extruder screw, as shown in Figure 1, including the feed zone 11 set gradually along the direction of motion of material, plasticizing
Section 12 and release section 14.
As shown in Figure 1, feed zone 11 is equipped with the feed well 112 formed by main thread 111.Material enters feed zone 11
Feed well 112 in.Screw body 1 during rotation, made by the friction on 111 surface of machine tube inner wall and main thread by material
It is fed forward and is compacted under, this process materials is kept substantially solid-state.
As shown in Figure 1, solid material enters in fluxing zone 12, fluxing zone 12 is equipped with the first deputy thread 121, and main
Lead between screw thread 111 and the first deputy thread 121 is identical.Lead between main thread 111 and the first deputy thread 121 is identical to be made
The amount for the material that each lead must be entered is close, so that it is more uniform when material plasticizing, so that load is more
Stablize.
As shown in Figure 1, being equipped with section 13 of backflowing between fluxing zone 12 and release section 14, section of backflowing 13 is equipped with the second deputy thread
131, and the lead in section 13 of backflowing between main thread 111 and the second deputy thread 131 is gradually increased.Material after plasticizing is stream
Body, fluid enter section 13 of backflowing under the push effect of fluxing zone 12, return under the drag effect of the second deputy thread 131
It is plasticized again in fluxing zone 12, so that fluid plasticizing is more abundant.Since the lead for section 13 of backflowing is gradually increased so that every time into
Enter to the fluid between main thread 111 and the second deputy thread 131 and gradually increase, and is reduced back to the material of fluxing zone 12, from
And make material that there is stable load when being plasticized more fully.
As shown in Figure 1, the length for section 13 of backflowing is the 1/4~1/3 of 12 length of fluxing zone.So that into the object of fluxing zone 12
Expect that fusion time is longer, plasticizing is more abundant, while can also reduce the fusion time for the material that backflows, and improves work efficiency.
It is outward extended with stirring section 15 far from one end of fluxing zone 12 as shown in Figure 1, releasing section 14, and is set in stirring section 15
The blow tank 151 for thering is single thread to be formed.Material after plasticizing enters in stirring section 15 under the action of releasing section 14 to be stirred
It mixes, so that material plasticizing is more uniform, improves product quality.
As shown in Figure 1, the diameter of stirring section 15 is equal with the diameter of screw body 1.When the diameter of stirring section 15 is greater than spiral shell
When the diameter of bar body 1, for material accumulation in stirring section 15 and 1 junction of screw body, the material of only junction is cumulative
When, material could be released.When the diameter of stirring section 15 is less than the diameter of screw body 1, material is easy to be deposited in stirring section
At 15 dead angles connecting with screw body 1, material waste is caused.When 15 diameter of stirring section is equal with the diameter of screw body 1,
Material is directly delivered at stirring section 15 under the action of releasing section 14, and feeding is more smooth, improves work efficiency.
As shown in Figure 1, the development length of stirring section 15 is 20~30cm.When stirring section 15 is too short, reduce material with
The contact area of stirring section 15, the effect that material is plasticized again are poor.When stirring section 15 is too long, stirring section 15 is easily shaken, stirring
15 extrusion pressures of section are unstable, cause load unstable, reduce efficiency.
As shown in Figure 1, reducing material loss to improve load, the head of screw body 1 is set as semicircle.Material
When extrusion, material enters directly at extrusion die along semicircle, more convenient, while material is not easy reverse flow, so that
It discharges more stable.
As shown in Figure 1, save the working time to improve working efficiency, the movement of the depth of 1 slot of screw body along material
Direction is arranged from depth to shallow.Feed well 112 is deep to improve storing amount, and blow tank 151 is shallow, facilitates material to squeeze out, improves extrusion
Efficiency.
Specific implementation process: material enters in feed well 112 from hopper, on 111 surface of machine tube inner wall and main thread
It is compacted under rubbing action and is delivered to fluxing zone 12.Material is further compacted by fluxing zone 12, and the air that will be carried secretly in material
It is pressed back at feed opening and is discharged, material starts to be plasticized in the external heating gate of machine barrel, and the material after plasticizing is in the work of section 13 that backflows
It is plasticized again with lower return in fluxing zone 12, so that material plasticizing is more abundant, the material after being plasticized again is releasing section 14
Conveying under enter at stirring section 15 and futher stir so that material plasticizing is more uniform, last stirring section 15 is defeated by material
It is sent in extrusion die and squeezes out.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (9)
1. a kind of extruder screw, including screw body (1), the screw body (1) sets gradually along the direction of motion of material
Feed zone (11), fluxing zone (12) and release section (14), the feed zone (11) be equipped with by main thread (111) formed into
Hopper (112), it is characterized in that: described one end for releasing section (14) separate fluxing zone (12) is outward extended with stirring section (15), institute
It states stirring section (15) and is equipped with the blow tank (151) that single thread is formed.
2. a kind of extruder screw according to claim 1, it is characterized in that: the diameter of the stirring section (15) and screw rod sheet
The diameter of body (1) is equal.
3. a kind of extruder screw according to claim 2, it is characterized in that: the development length of the stirring section (15) is 20
~30cm.
4. a kind of extruder screw according to claim 3, it is characterized in that: the fluxing zone (12) is equipped with the first secondary spiral shell
Line (121), the main thread (111) on the fluxing zone (12) are identical as the lead between the first deputy thread (121).
5. a kind of extruder screw according to claim 4, it is characterized in that: the fluxing zone (12) and release section (14) it
Between be equipped with backflow section (13), the section of backflowing (13) be equipped with the second deputy thread (131).
6. a kind of extruder screw according to claim 5, it is characterized in that: the main thread (111) of the section of backflowing (13)
Lead between the second deputy thread (131) is gradually increased.
7. a kind of extruder screw according to claim 6, it is characterized in that: the length of the section of backflowing (13) is fluxing zone
(12) the 1/4~1/3 of length.
8. a kind of extruder screw according to claim 1, it is characterized in that: the head of the screw body (1) is semicircle
Shape.
9. a kind of extruder screw according to claim 8, it is characterized in that: the groove depth of the screw body (1) is along material
The direction of motion be arranged from depth to shallow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820605750.5U CN208215971U (en) | 2018-04-25 | 2018-04-25 | A kind of extruder screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820605750.5U CN208215971U (en) | 2018-04-25 | 2018-04-25 | A kind of extruder screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208215971U true CN208215971U (en) | 2018-12-11 |
Family
ID=64512652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820605750.5U Active CN208215971U (en) | 2018-04-25 | 2018-04-25 | A kind of extruder screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208215971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315746A (en) * | 2019-08-05 | 2019-10-11 | 深圳市畅形增材科技有限公司 | Small draw ratio extrusion screw rod and extrusion device |
-
2018
- 2018-04-25 CN CN201820605750.5U patent/CN208215971U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315746A (en) * | 2019-08-05 | 2019-10-11 | 深圳市畅形增材科技有限公司 | Small draw ratio extrusion screw rod and extrusion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204869587U (en) | Fashioned twin -screw extrusion device of plastic pellet | |
| CN208215971U (en) | A kind of extruder screw | |
| CN201272019Y (en) | Extrusion screw rod structure of engineering plastics engineering plastics | |
| CN208375653U (en) | A kind of parallel double-screw extruder | |
| CN202943858U (en) | Screw for extruder | |
| CN201208792Y (en) | Energy-saving screw rod | |
| CN104400931B (en) | A kind of double rank extruding and granulating equipment of high rotating speed high shear high dispersive | |
| CN209381351U (en) | Single screw extrusion machine high-efficiency and energy-saving type screw rod | |
| CN204869584U (en) | Single -screw extruder | |
| CN206201265U (en) | It is a kind of to produce the special uniform formula water cooling tube of pvc pipe | |
| CN201669874U (en) | High-speed extrusion single screw for polypropylene | |
| CN214293905U (en) | Prilling granulator for plastics processing convenient to change mould | |
| CN209350853U (en) | A kind of novel separated type extruder screw | |
| CN202965145U (en) | Material feeding device for extruder and double-screw extruder | |
| CN207432729U (en) | A kind of twin-screw extrusion head | |
| CN208514927U (en) | A kind of single, double screw mixes Dual inoculation | |
| CN207657137U (en) | The adding set of liquid component in a kind of production of plastic master batch | |
| CN208809088U (en) | A kind of twin-screw pellet processing machine | |
| CN207669745U (en) | A kind of screw extruder | |
| CN209955266U (en) | Extrusion screw for blow molding machine | |
| CN206633358U (en) | One kind processing plastic building template screw in injection molding machine | |
| CN208101007U (en) | A kind of bolt special of polypropylene flat-filament wire drawing machine | |
| CN208993039U (en) | A kind of novel extrusion machine screw rod | |
| CN203863961U (en) | Melt glue injection device for injection molding machine | |
| CN109774101A (en) | A kind of low temperature splits bubble extrusion mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |