CN212219220U - Extrusion screw structure for plastic machine - Google Patents
Extrusion screw structure for plastic machine Download PDFInfo
- Publication number
- CN212219220U CN212219220U CN202020378732.5U CN202020378732U CN212219220U CN 212219220 U CN212219220 U CN 212219220U CN 202020378732 U CN202020378732 U CN 202020378732U CN 212219220 U CN212219220 U CN 212219220U
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- section
- screw
- melting
- extrusion
- extruding
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- 238000001125 extrusion Methods 0.000 title claims abstract description 50
- 239000004033 plastic Substances 0.000 title claims abstract description 26
- 229920003023 plastic Polymers 0.000 title claims abstract description 26
- 238000002844 melting Methods 0.000 claims abstract description 41
- 230000008018 melting Effects 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 238000009713 electroplating Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 235000000621 Bidens tripartita Nutrition 0.000 description 2
- 240000004082 Bidens tripartita Species 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 208000006637 fused teeth Diseases 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000010137 moulding (plastic) Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a plastics machine is with extruding screw rod structure relates to plastics machine equipment technical field, including linkage segment, feed zone, melting section, plastify section, extrude the section and link up the section, the linkage segment has feed zone, melting section, plastify section, extrudes the section and links up the section from a left side right side fixed mounting in proper order, the left side on linkage segment surface is provided with the seal groove that is used for protecting the junction, the right side equipment on linkage segment surface has assembly flange, the length of feed zone is for extruding 20% of screw rod structure total length. This plastic machine is with extruding screw rod structure through set up gradually increasing progressively or degressive radius on feed zone, melting section and extrusion section for the propulsion speed of extruding the screw rod carries out the gradual change, and the pressure distribution that receives is more even, and the stress state of extruding the screw rod is better, and reducing wear makes the raw materials ejection of compact under the motion steady state, has improved this plastic machine is with extruding screw rod structure's work efficiency.
Description
Technical Field
The utility model relates to a plastics machine equipment technical field specifically is a plastics machine is with extruding screw rod structure.
Background
The extrusion screw is a cylinder with a spiral groove cut on the outer surface or a cone with a conical spiral groove cut on the outer surface, and is widely used for plastic molding equipment such as plastic extruders and injection molding machines. The extrusion screw is used for making the rubber material gradually become linear motion along with the rotation motion of the extrusion screw, moving towards the machine head direction, matching with the machine body, compressing to generate heat, softening and stirring, and mixing the rubber material, and the extrusion screw is a core part of plastic molding equipment, is a part for heating, extruding and plasticizing and is a core of plastic machinery.
For example, chinese patent CN 204712429U discloses an extrusion screw for injection molding, which comprises a feeding section (a), a melting section (B), a plasticizing section (C) and an extrusion section, wherein the feeding section (a), the melting section (B), the plasticizing section (C) and the extrusion section are provided with screw ridges, the screw pitch (L) of the screw ridge of the feeding section (a) is equal, the melting section (B) is composed of a plurality of parallel screw ridges (1) spaced apart from each other, each parallel screw ridge (1) is provided with a convex block (11) at intervals, the screw pitch (L) of the plasticizing screw ridge (2) of the plasticizing section (C) is opposite to the screw pitch (L) of the feeding section screw ridge (3), and the plasticizing screw ridge (2) is a double-tooth screw ridge, the screw pitch (H) of the double-tooth screw ridge is equal to the screw pitch (L) of the feeding section screw ridge (3), and the extrusion section comprises a single screw ridge section (L) having a screw pitch (L) greater than the screw pitch (L) of the feeding section screw ridge and a screw pitch (3) opposite to the screw pitch D) And a kneading section (E) provided with two kneading heads (4) arranged in tandem on the screw extrusion head. Although different distance ratios are set on the screw pitch, the whole screw is set in the same radius, so that the propelling speed cannot be gradually changed, the problem that the extrusion screw is easy to wear is caused, and the service life of the extrusion screw is influenced.
To this end, we propose an extrusion screw structure for a plastic machine to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a plastic machine is with extruding screw rod structure possesses the screw rod radius in partial stage and increases progressively gradually or degressive advantage gradually to solve the problem that proposes among the above-mentioned background art.
For the purpose that the screw radius of realizing partial stage increases gradually or diminishes gradually, the utility model provides a following technical scheme: an extrusion screw structure for a plastic machine comprises a connecting section, a feeding section, a melting section, a plasticizing section, an extrusion section and a linking section, wherein the connecting section is fixedly provided with the feeding section, the melting section, the plasticizing section, the extrusion section and the linking section from left to right, the left side of the surface of the connecting section is provided with a sealing groove for protecting the joint, the right side of the surface of the connecting section is assembled with an assembly flange, the length of the feeding section is 20% of the total length of the extrusion screw structure, the radius of the feeding section is sequentially increased from left to right, the feeding section is provided with feeding ribs, the distance between the ribs of the feeding ribs is gradually increased, the length of the melting section is 20% of the total length of the extrusion screw structure, the melting rib is arranged on the melting section, the radius of the melting section is sequentially increased from left to right, the plasticizing rib is arranged on the plasticizing section, the distance between the spiral edges of the plasticizing spiral edge is gradually increased, the extrusion section is provided with extrusion double spiral edges, and the radius of the extrusion section is gradually decreased from left to right.
As the utility model discloses a preferred technical scheme, mounting flange has included the connecting piece, the connecting piece parcel is on the surface of linkage segment, the outside joint of connecting piece has the internal frame of assembly and assembles outer frame, the joint is in the outside of connecting piece together in the both sides laminating of internal frame of assembly, assembly outer frame.
As an optimized technical scheme of the utility model, interval between the melting spiral shell arris is 500mm, the spiral shell arris difference of melting spiral shell arris both sides is 25 mm.
As a preferred technical scheme of the utility model, be provided with additional lower spiral shell arris and add the spiral shell arris between the melting spiral shell arris, an additional lower spiral shell arris and an additional have a melting spiral shell arris at the interval between the spiral shell arris.
As an optimal technical scheme of the utility model, extrude two screw arriss and constitute by twice screw arriss, it increases from the left hand right hand side in proper order to extrude interval between two screw arriss.
As an optimized technical proposal of the utility model, the six stages of the extrusion screw are all formed by processing high-quality 38CrMoALA materials, and the surfaces of the six stages of the extrusion screw are subjected to nitriding treatment and hard chromium electroplating treatment.
Compared with the prior art, the utility model provides a plastic machine is with extruding screw structure possesses following beneficial effect:
this plastic machine is with extruding screw rod structure through set up gradually increasing progressively or degressive radius on feed zone, melting section and extrusion section for the propulsion speed of extruding the screw rod carries out the gradual change, and the pressure distribution that receives is more even, and the stress state of extruding the screw rod is better, and reducing wear makes the raw materials ejection of compact under the motion steady state, has improved this plastic machine is with extruding screw rod structure's work efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the connection structure of the mounting flange of the present invention.
In the figure: 1. a connecting section; 2. a feeding section; 3. a melting section; 4. a plasticizing section; 5. an extrusion section; 6. a joining section; 7. a sealing groove; 8. assembling a flange; 81. a connecting member; 82. assembling an inner frame; 83. assembling an outer frame; 9. feeding screw edges; 10. melting the screw edge; 11. adding a lower screw edge; 12. adding a screw edge; 13. Plasticizing the screw edge; 14. double screw edges are extruded.
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.
Referring to fig. 1-2, the utility model discloses an extrusion screw structure for plastic machine, which comprises a connection section 1, a feeding section 2, a melting section 3, a plasticizing section 4, an extruding section 5 and a linking section 6, wherein the connection section 1 is fixedly provided with the feeding section 2, the melting section 3, the plasticizing section 4, the extruding section 5 and the linking section 6 from left to right in sequence, the left side of the surface of the connection section 1 is provided with a sealing groove 7 for protecting the connection part, the right side of the surface of the connection section 1 is assembled with an assembling flange 8, the length of the feeding section 2 is 20% of the total length of the extrusion screw structure, the radius of the feeding section 2 is sequentially increased from left to right, the feeding section 2 is provided with a feeding screw rib 9, the distance between the screw ribs of the feeding screw rib 9 is gradually increased, the length of the melting section 3 is 20% of the total length of the extrusion screw structure, the melting section 3 is provided with a melting screw, the radius of melting section 3 increases progressively from left to right in proper order, be provided with plastify spiral shell arris 13 on the plastify section 4, the distance between the spiral shell arris of plastify spiral shell arris 13 increases gradually, it extrudes two spiral shell arris 14 to be provided with on the section 5 of extruding, the radius of extruding section 5 decreases progressively from left to right in proper order, through set up gradually increasing progressively or degressive radius on feed zone 2, melting section 3 and the section 5 of extruding for the propulsion speed of extruding the screw rod changes gradually, and the pressure distribution that receives is more even, and the stress state of extruding the screw rod is better, and the reduction wearing and tearing make the raw materials ejection of compact under the motion steady state.
Specifically, assembly flange 8 has included connecting piece 81, connecting piece 81 parcel is on the surface of linkage segment 1, connecting piece 81's outside joint has assembly inner frame 82 and assembles outer frame 83, the joint is in the outside of connecting piece 81 in the both sides laminating of assembly inner frame 82, assembly outer frame 83 together, guarantees this for the plastics machine stability of connection structure between extrusion screw structure and the equipment.
Specifically, the distance between the melting screw ridges 10 is 500mm, and the screw ridge difference between the two sides of the melting screw ridges 10 is 25mm, so that the raw materials can be conveniently melted.
Specifically, an additional lower screw rib 11 and an additional upper screw rib 12 are arranged between the melting screw ribs 10, and one melting screw rib 10 is arranged between one additional lower screw rib 11 and one additional upper screw rib 12, so that the reaction effect of the raw materials in the melting process is improved.
Specifically, the extrusion double-screw rib 14 is composed of two screw ribs, and the distance between the extrusion double-screw ribs 14 increases from left to right in sequence.
Specifically, the six stages of the extrusion screw are all processed by adopting a high-quality 38CrMoALA material, and the surfaces of the six stages of the extrusion screw are subjected to nitriding treatment and hard chromium electroplating treatment.
In conclusion, according to the extrusion screw structure for the plastic machine, the gradually increasing or decreasing radiuses are arranged on the feeding section 2, the melting section 3 and the extrusion section 5, so that the propelling speed of the extrusion screw gradually changes, the pressure distribution is more uniform, the stress state of the extrusion screw is better, the abrasion is reduced, the raw material is discharged in a stable motion state, and the working efficiency of the extrusion screw structure for the plastic machine is improved.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a plastic machine is with extruding screw structure, includes linkage segment (1), feeding section (2), melting section (3), plastify section (4), extrude section (5) and link up section (6), its characterized in that: the connecting section (1) is fixedly provided with a feeding section (2), a melting section (3), a plasticizing section (4), an extruding section (5) and a linking section (6) from left to right in sequence, the left side of the surface of the connecting section (1) is provided with a sealing groove (7) for protecting a joint, the right side of the surface of the connecting section (1) is assembled with an assembling flange (8), the length of the feeding section (2) is 20% of the total length of an extruding screw structure, the radius of the feeding section (2) is sequentially increased from left to right, the feeding section (2) is provided with a feeding screw rib (9), the distance between the screw ribs of the feeding screw rib (9) is gradually increased, the length of the melting section (3) is 20% of the total length of the extruding screw structure, the melting section (3) is provided with a melting screw rib (10), and the radius of the melting section (3) is sequentially increased from left to right, be provided with plastify spiral shell arris (13) on plastify section (4), distance between the spiral shell arris of plastify spiral shell arris (13) increases gradually, it extrudes two spiral shell arris (14) to be provided with on extrusion section (5), the radius of extruding section (5) diminishes progressively from a left side to the right side in proper order.
2. The extrusion screw structure for plastic machines according to claim 1, wherein: mounting flange (8) have included connecting piece (81), connecting piece (81) parcel is on the surface of linkage segment (1), the outside joint of connecting piece (81) has assembly inner frame (82) and assembly outer frame (83), the joint is in the outside of connecting piece (81) together in the both sides laminating of assembly inner frame (82), assembly outer frame (83).
3. The extrusion screw structure for plastic machines according to claim 1, wherein: the distance between the melting screw edges (10) is 500mm, and the screw edge difference between two sides of the melting screw edges (10) is 25 mm.
4. The extrusion screw structure for plastic machines according to claim 1, wherein: additional lower screw ridges (11) and additional upper screw ridges (12) are arranged between the melting screw ridges (10), and one melting screw ridge (10) is arranged between one additional lower screw ridge (11) and one additional upper screw ridge (12) at intervals.
5. The extrusion screw structure for plastic machines according to claim 1, wherein: the extrusion double-screw rib (14) is composed of two screw ribs, and the distance between the extrusion double-screw ribs (14) is increased from left to right in sequence.
6. The extrusion screw structure for plastic machines according to claim 1, wherein: the six stages of the extrusion screw are all made of high-quality 38CrMoALA materials, and the surfaces of the six stages of the extrusion screw are subjected to nitriding treatment and hard chromium electroplating treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020378732.5U CN212219220U (en) | 2020-03-24 | 2020-03-24 | Extrusion screw structure for plastic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020378732.5U CN212219220U (en) | 2020-03-24 | 2020-03-24 | Extrusion screw structure for plastic machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212219220U true CN212219220U (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020378732.5U Expired - Fee Related CN212219220U (en) | 2020-03-24 | 2020-03-24 | Extrusion screw structure for plastic machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212219220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022208200A1 (en) * | 2021-03-30 | 2022-10-06 | 3M Innovative Properties Company | Dispensing device and methods thereof |
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2020
- 2020-03-24 CN CN202020378732.5U patent/CN212219220U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022208200A1 (en) * | 2021-03-30 | 2022-10-06 | 3M Innovative Properties Company | Dispensing device and methods thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |