CN217346625U - Extrusion screw structure for single-screw plastic extruder - Google Patents
Extrusion screw structure for single-screw plastic extruder Download PDFInfo
- Publication number
- CN217346625U CN217346625U CN202221065004.4U CN202221065004U CN217346625U CN 217346625 U CN217346625 U CN 217346625U CN 202221065004 U CN202221065004 U CN 202221065004U CN 217346625 U CN217346625 U CN 217346625U
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- section
- rotating shaft
- extrusion
- plastic extruder
- shaft
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- 238000001125 extrusion Methods 0.000 title claims abstract description 36
- 239000004033 plastic Substances 0.000 title claims abstract description 21
- 229920003023 plastic Polymers 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 48
- 238000003756 stirring Methods 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 9
- 230000003139 buffering effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002861 polymer material Substances 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses an extrusion screw structure that single screw rod plastic extruder used, including the screw rod main part, the screw rod main part includes installation section, feeding section, extrusion section, feeding section, buffer segment and the stirring section that sets gradually along material direction of delivery, feeding section, extrusion section and feeding section include first pivot, second pivot and third pivot respectively. The utility model discloses in, the extrusion section of setting can extrude the material, can effectually get rid of the caking, and can play certain pressure boost effect to the transport of material, the buffer segment of setting can carry out the separation to great caking in the material, and slow down the speed that the material got into the stirring section, be favorable to the material at stirring section intensive mixing, the material can stir the section after the discharge opening, the second spiral delivery sheet of stirring section can the material be carried, the puddler of setting can stir at the in-process that the material was carried, make the mixture that the material can be abundant.
Description
Technical Field
The utility model relates to a plastic extruder technical field especially relates to an extrusion screw structure that single screw rod plastic extruder used.
Background
The single screw extruder is widely applied to the extrusion forming process of high polymer materials, and in order to ensure the quality of extrusion forming products and reduce the production cost, fillers, auxiliary materials, auxiliary agents and the like are required to be added into the high polymer materials so as to improve the quality of final products and improve the cost performance of the products. The high polymer material is mixed with the filling material, the auxiliary agent and the like, and then enters the barrel of the single-screw extruder from the barrel feeding port of the single-screw extruder, the mixed material is melted and mixed under the actions of heat conduction of the barrel and conveying, compression and mixing of the single screw, moisture and gas of the melted mixed material are discharged from the exhaust port of the barrel, and the melted mixed material is compressed and pressurized by the extrusion section of the single screw and then is extruded and formed from a machine head.
The screw structure of the single-screw extruder plays a crucial role in improving the quality of an extrusion forming product and reducing the production cost, and the existing screw structure cannot fully stir and mix materials while conveying the materials, so that the materials are agglomerated when being extruded.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an extrusion screw structure for a single-screw plastic extruder.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an extrusion screw structure that single screw rod plastics extruder used, includes the screw rod main part, the screw rod main part includes installation section, feeding section, extrusion section, feeding section, buffer segment and the stirring section that sets gradually along material direction of delivery, feeding section, extrusion section and feeding section include first pivot, second pivot and third pivot respectively, the first spiral delivery sheet of outside fixedly connected with of first pivot, second pivot and third pivot, the buffer segment includes the toper axis body, the toper axis body is located one side of feeding direction and sets up flutedly, a plurality of discharge openings have been seted up to the inside of recess, the stirring section includes the outside fixedly connected with second spiral delivery sheet of fourth pivot, the outside of fourth pivot is different from a plurality of puddlers of position fixedly connected with of second spiral delivery sheet.
As a further description of the above technical solution:
the first rotating shaft, the second rotating shaft, the third rotating shaft, the conical shaft body and the fourth rotating shaft are sequentially connected end to end.
As a further description of the above technical solution:
the second rotating shaft is of a structure with cones at two ends of a middle cylinder.
As a further description of the above technical solution:
the mounting section comprises a connecting shaft and a sealing shaft, and a key groove is formed in the side face of the connecting shaft.
As a further description of the above technical solution:
a plurality of limiting grooves are formed in the outer side of the sealing shaft.
As a further description of the above technical solution:
and a sealing ring is fixedly connected to the outer side of the conical shaft body.
The utility model discloses following beneficial effect has:
the utility model provides an extrusion screw structure that single screw rod plastic extruder used, the installation section of setting can make this screw structure can with the firm connection of drive end, the first screw feed plate of setting can be carried the material, the extrusion section of setting can extrude the material, can effectually get rid of the caking, and can play certain pressure boost effect to the transport of material, the buffer segment of setting can carry out the separation to great caking in the material, and slow down the speed that the material got into the stirring section, be favorable to the material at stirring section intensive mixing, the material can stir the section after the discharge opening, the second screw feed plate of stirring section can the material be carried, the puddler of setting can stir at the in-process that the material carried, make the material can be abundant mix.
Drawings
FIG. 1 is a front view of an extrusion screw structure for a single screw plastic extruder according to the present invention;
fig. 2 is a left side view of an extrusion screw structure for a single screw plastic extruder according to the present invention;
fig. 3 is a right side view of the extrusion screw structure for a single screw plastic extruder according to the present invention.
Illustration of the drawings:
1. an installation section; 2. a feeding section; 3. an extrusion section; 4. a feeding section; 5. a buffer section; 6. a stirring section; 7. a connecting shaft; 8. a keyway; 9. a seal shaft; 10. a limiting groove; 11. a first rotating shaft; 12. a second rotating shaft; 13. a third rotating shaft; 14. a first screw feeding plate; 15. a conical shaft body; 16. a seal ring; 17. a discharge hole; 18. a fourth rotating shaft; 19. a second screw feeding plate; 20. a stirring rod; 21. and (4) a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides an extrusion screw structure that single screw plastic extruder used, including the screw rod main part, the screw rod main part includes the erection section 1 that sets gradually along material direction of delivery, feeding section 2, extrusion section 3, feeding section 4, buffer segment 5 and stirring section 6, feeding section 2, extrusion section 3 and feeding section 4 include first pivot 11 respectively, second pivot 12 and third pivot 13, first pivot 11, the first spiral feed plate 14 of outside fixedly connected with of second pivot 12 and third pivot 13, buffer segment 5 includes toper axis body 15, toper axis body 15 is located one side of feeding direction and is seted up fluted 21, a plurality of discharge openings 17 have been seted up to the inside of recess 21, stirring section 6 includes the outside fixedly connected with second spiral feed plate 19 of fourth pivot 18, the outside of fourth pivot 18 is different from a plurality of puddlers 20 of position fixedly connected with of second spiral feed plate 19.
The second rotating shaft 12 is a structure with cones at two ends of a middle cylinder, and materials can be extruded by the second rotating shaft 12 to a certain extent when passing through the second rotating shaft 12 in the conveying process, so that caking can be effectively removed.
Installing section 1 includes connecting axle 7 and sealed axle 9, and keyway 8 has been seted up to the side of connecting axle 7, and a plurality of spacing grooves 10 have been seted up in the outside of sealed axle 9, and keyway 8 and the spacing groove 10 that set up can play skid-proof effect for installing section 1 can be connected with the drive end is firm.
The outside fixedly connected with sealing washer 16 of conical shaft body 15, the sealing washer 16 of setting can prevent that the material from passing through conical shaft body 15's the outside and pass through, plays sealed effect.
The working principle is as follows: an extrusion screw structure for a single-screw plastic extruder is characterized in that when the extrusion screw structure is installed and used, the screw structure is installed in a cavity of the plastic extruder and is connected with a driving end through a connecting shaft 7 of an installation section 1, a sealing shaft 9 is arranged to play a role of preventing materials from leaking, when the screw structure rotates to convey the materials, the materials firstly enter a conveying section, the materials are driven to convey through rotation of a first spiral feeding plate 14 and enter an extrusion section 3, and because a second rotating shaft 12 is a structure of cones at two ends of a middle cylinder, the materials are extruded by the second rotating shaft 12 to a certain degree when passing through the second rotating shaft 12 in the conveying process, caking can be effectively removed, the materials are continuously conveyed to enter a feeding section 4, because the second rotating shaft 12 is a structure of cones at two ends of the middle cylinder, the materials are not easy to move to the feeding section 2, and the materials can be pressurized, in the material entered into the recess 21 of the 15 side of conical shaft body, entered into stirring section 6 through a plurality of discharge openings 17 again, the second spiral feed plate 19 of stirring section 6 can be carried by the material, and the puddler 20 of setting can stir at the in-process that the material was carried for the mixing that the material can be abundant, and final material can be discharged by the material extrusion opening of plastic extruder.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides an extrusion screw structure that single screw plastic extruder used, includes the screw rod main part, its characterized in that: the screw rod main body comprises an installation section (1), a feeding section (2), an extrusion section (3), a feeding section (4), a buffering section (5) and a stirring section (6) which are sequentially arranged along a material conveying direction, the feeding section (2), the extrusion section (3) and the feeding section (4) respectively comprise a first rotating shaft (11), a second rotating shaft (12) and a third rotating shaft (13), the outer sides of the first rotating shaft (11), the second rotating shaft (12) and the third rotating shaft (13) are fixedly connected with a first spiral feeding plate (14), the buffering section (5) comprises a conical shaft body (15), one side, located in the feeding direction, of the conical shaft body (15) is provided with a groove (21), a plurality of discharge holes (17) are formed in the groove (21), the stirring section (6) comprises a second spiral feeding plate (19) fixedly connected with the outer side of a fourth rotating shaft (18), the outer side of the fourth rotating shaft (18) is fixedly connected with a plurality of stirring rods (20) at positions different from the second spiral feeding plate (19).
2. The extrusion screw structure for a single screw plastic extruder according to claim 1, characterized in that: the first rotating shaft (11), the second rotating shaft (12), the third rotating shaft (13), the conical shaft body (15) and the fourth rotating shaft (18) are sequentially connected end to end.
3. The extrusion screw structure for a single screw plastic extruder according to claim 2, wherein: the second rotating shaft (12) is of a structure with cones at two ends of a middle cylinder.
4. The extrusion screw structure for a single screw plastic extruder according to claim 1, wherein: the mounting section (1) comprises a connecting shaft (7) and a sealing shaft (9), and a key groove (8) is formed in the side face of the connecting shaft (7).
5. The extrusion screw structure for a single screw plastic extruder according to claim 4, wherein: the outer side of the sealing shaft (9) is provided with a plurality of limiting grooves (10).
6. The extrusion screw structure for a single screw plastic extruder according to claim 1, wherein: and a sealing ring (16) is fixedly connected to the outer side of the conical shaft body (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221065004.4U CN217346625U (en) | 2022-05-06 | 2022-05-06 | Extrusion screw structure for single-screw plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221065004.4U CN217346625U (en) | 2022-05-06 | 2022-05-06 | Extrusion screw structure for single-screw plastic extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217346625U true CN217346625U (en) | 2022-09-02 |
Family
ID=83011448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221065004.4U Expired - Fee Related CN217346625U (en) | 2022-05-06 | 2022-05-06 | Extrusion screw structure for single-screw plastic extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217346625U (en) |
-
2022
- 2022-05-06 CN CN202221065004.4U patent/CN217346625U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220902 |
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| CF01 | Termination of patent right due to non-payment of annual fee |