CN220614834U - Mixing screw structure - Google Patents
Mixing screw structure Download PDFInfo
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- CN220614834U CN220614834U CN202322086173.7U CN202322086173U CN220614834U CN 220614834 U CN220614834 U CN 220614834U CN 202322086173 U CN202322086173 U CN 202322086173U CN 220614834 U CN220614834 U CN 220614834U
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- mixing
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- core column
- screw
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- 238000002156 mixing Methods 0.000 title claims abstract description 106
- 230000007704 transition Effects 0.000 claims abstract description 56
- 230000006835 compression Effects 0.000 claims abstract description 33
- 238000007906 compression Methods 0.000 claims abstract description 33
- 238000005260 corrosion Methods 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 238000005121 nitriding Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 abstract description 22
- 239000007787 solid Substances 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Abstract
The utility model discloses a mixing screw structure, which comprises a screw main body, wherein the screw main body is sequentially provided with a connecting section, a fixing section, a feeding section, a compression section, a homogenizing section, a first mixing section and a second mixing section from right to left, a core column of the feeding section is a cylinder, a first screw tooth is arranged on the core column of the feeding section, and a smooth first transition area is formed on the feeding section; the core column of the compression section is a cone which is gradually designed from right to left, the core column of the compression section is provided with a second screw thread, and a second transition area is formed on the core column of the compression section; the first transition area and the second transition area are polished rod areas; so, utilize first, second transition region increase raw materials in the area of contact of feed section, compression section to be favorable to the raw materials to change into the molten state from solid state uniformly, in order to follow-up mixing operation, the setting of cooperation first, second mixing section makes the raw materials mix more evenly, thereby has improved the quality of product, satisfies user's user demand, application scope is wide.
Description
Technical Field
The utility model relates to the technical field of screws, in particular to a mixing screw structure.
Background
Injection molding is a main molding method of plastic products, a screw is one of key parts of an injection molding machine, the screw has the functions of conveying, mixing, injection and the like, and the screw rotates in a machine barrel of the injection molding machine, and the production process comprises the following steps: plasticizing granular or powdery solid plastic, including heating, compacting, homogenizing and mixing, to obtain plastic melt with uniform density, viscosity and good component plasticity, applying certain pressure to make the plastic melt possess certain flow rate and inject into the cavity of forming mould, cooling and shaping the plastic melt to obtain the plastic product with identical shape with the mould cavity; along with the improvement of the quality requirement of injection molded products, the requirement of the screw on the mixing effect of raw materials is improved; the traditional mixing screw is generally provided with only one mixing head and one screw tooth section so as to realize mixing of raw materials, but the mixing effect is poor, and the requirement of a user on a better mixing effect cannot be met.
The existing mixing screw generally comprises a feeding section, a compression section, a homogenization section and a mixing section, and raw materials are fed, compressed, homogenized and mixed by utilizing each section and then discharged, so that mixing processing of the raw materials is realized; however, the feeding section and the compression section of the mixing screw have poor processing operation effect on raw materials, so that the raw materials are easy to block in the feeding section and the compression section, the subsequent mixing operation of the raw materials is not facilitated, the processed products are inconsistent in quality, the use requirements of users cannot be met, and the application range is small.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and its main objective is to provide a mixing screw structure, which uses the first and second transition regions to increase the contact area of the raw materials in the feeding section and the compression section, so as to facilitate the raw materials to be uniformly transformed from solid state to molten state, so as to facilitate the subsequent mixing operation, and the mixing of the raw materials is more uniform by matching with the arrangement of the first and second mixing sections, thereby improving the quality of the product, meeting the use requirements of users, and having a wide application range.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the mixing screw structure comprises a screw body, wherein the screw body is sequentially provided with a connecting section, a fixing section, a feeding section, a compression section, a homogenizing section, a first mixing section and a second mixing section from right to left, and the feeding section, the compression section, the homogenizing section, the first mixing section and the second mixing section are all provided with core columns with circular sections; wherein:
the core column of the feeding section is a cylinder, the bottom diameter of the feeding section is a first diameter, a first screw tooth is arranged at the right section position of the core column of the feeding section, and a first transition area is formed at the left section position of the core column of the feeding section;
the core column of the compression section is a cone which is gradually designed from right to left, a second screw tooth is arranged at the left section of the core column of the compression section, a second transition area is formed at the right section of the core column of the compression section, the first transition area is connected with the second transition area, and the first transition area and the second transition area are polished rod areas;
the core column of the homogenizing section is a cylinder, the bottom diameter of the homogenizing section is a second diameter, a third screw tooth is arranged on the outer surface of the core column of the homogenizing section, the diameter of the right end of the core column of the compressing section is equal to the first diameter, and the diameter of the left end of the core column of the compressing section is equal to the second diameter;
the core column of the first mixing section is a cylinder, a first mixing groove and a second mixing groove are arranged on the core column of the first mixing section, and the first mixing groove and the second mixing groove are crossed and are arranged at equal intervals;
the core column of the second mixing section is a cylinder, a plurality of pins which are arranged at intervals are arranged on the core column of the second mixing section, and the bottom diameters of the first mixing section and the second mixing section are both the third diameter.
As a preferred embodiment, the length of the feeding section is 1364 mm, the length of the compression section is 700 mm, the length of the homogenizing section is 1540 mm, the length of the first mixing section is 250 mm, and the length of the second mixing section is 232 mm.
Preferably, the first diameter is smaller than the third diameter, and the second diameter is smaller than the third diameter.
As a preferred embodiment, the first diameter is 100 mm, the second diameter is 115 mm, and the third diameter is 139 mm.
As a preferable scheme, a first transition section is arranged between the first mixing section and the second mixing section, a second transition section is arranged between the first mixing section and the homogenizing section, the first transition section and the second transition section are polished rod sections, the bottom diameter of the first transition section is equal to the bottom diameter of the second transition section, and the bottom diameters of the first transition section and the second transition section are both fourth diameters.
As a preferred embodiment, the fourth diameter is 115 mm.
As a preferable mode, the screw body is provided with a nitriding screw body and a wear-resistant corrosion-resistant alloy layer formed on the surface of the nitriding screw body.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, the technical proposal mainly adopts the design of the feeding section and the compression section, and the contact area of the raw materials in the feeding section and the compression section is increased by utilizing the first transition area and the second transition area, thereby being beneficial to the uniform conversion of the raw materials from a solid state to a molten state, facilitating the subsequent mixing operation, ensuring the smooth surface and uniform color of the prepared product, ensuring the quality effect of the product, ensuring the more uniform mixing of the raw materials by matching with the arrangement of the first mixing section and the second mixing section, improving the quality of the product, ensuring the ingenious and reasonable structural design, meeting the use requirements of users and having wide application range; and the wear-resistant and corrosion-resistant alloy layer on the surface of the screw body effectively improves the wear resistance and corrosion resistance of the screw, prolongs the service life of the screw, reduces the number of times of replacement of the screw during working, and controls the manufacturing cost of the screw and products.
In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of K-K of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of G-G of an embodiment of the utility model;
FIG. 4 is a schematic illustration of a second mixing section of an embodiment of the utility model;
fig. 5 is a cross-sectional view of a screw body of an embodiment of the present utility model.
The attached drawings are used for identifying and describing:
101. nitriding screw substrate 102, wear-resistant corrosion-resistant alloy layer
10. Screw body 11, connecting section
12. Fixed section 13, feeding section
131. First screw thread 132, first transition region
14. Compression section 141, second screw
142. A second transition zone 15, a homogenization section
151. Third screw 16, first mixing section
161. First mixing tank 162, second mixing tank
17. Second mixing section 171, pin
18. A first transition section 19, a second transition section.
Detailed Description
Referring to fig. 1 to 5, specific structures of embodiments of the present utility model are shown.
The mixing screw structure comprises a screw body 10, wherein the screw body 10 is sequentially provided with a connecting section 11, a fixing section 12, a feeding section 13, a compression section 14, a homogenizing section 15, a first mixing section 16 and a second mixing section 17 from right to left, and the feeding section 13, the compression section 14, the homogenizing section 15, the first mixing section 16 and the second mixing section 17 are all provided with core columns with circular sections; wherein:
the stem of the feeding section 13 is a cylinder, the bottom diameter of the feeding section 13 is a first diameter, a first screw thread 131 is arranged at the right section position of the stem of the feeding section 13, and a first transition area 132 is formed at the left section position of the stem of the feeding section 13;
the stem of the compression section 14 is a cone which is gradually designed from right to left, a second screw thread 141 is arranged at the left section position of the stem of the compression section 14, a second transition area 142 is formed at the right section position of the stem of the compression section 14, the first transition area 132 is connected with the second transition area 142, and the first transition area 132 and the second transition area 142 are polished rod areas;
the stem of the homogenizing section 15 is a cylinder, the bottom diameter of the homogenizing section 15 is a second diameter, a third screw thread 151 is arranged on the outer surface of the stem of the homogenizing section 15, the diameter of the right end of the stem of the compressing section 14 is equal to the first diameter, the diameter of the left end of the stem of the compressing section 14 is equal to the second diameter, and the bottom diameter of the stem of the homogenizing section 15 is in wave-like change;
the stem of the first mixing section 16 is a cylinder, a first mixing groove 161 and a second mixing groove 162 are arranged on the stem of the first mixing section 16, and the first mixing groove 161 and the second mixing groove 162 are crossed and are arranged at equal intervals;
the core column of the second mixing section 17 is a cylinder, a plurality of pins 171 are arranged on the core column of the second mixing section 17 at intervals, and the bottom diameters of the first mixing section 16 and the second mixing section 17 are both the third diameter; so, utilize first, second transition region increase raw materials in the area of contact of feed section, compression section to be favorable to the raw materials to change into the molten state from solid state uniformly, in order to follow-up mixing operation, make the product surface smooth, the color and luster that make even, guaranteed the quality effect of product, the setting of cooperation first, the second mixing section makes the raw materials mix more evenly, thereby improved the quality of product, structural design is ingenious reasonable, satisfy user's user demand, application scope is wide.
The length of the inlet section 13 was 1364 mm, the length of the compression section 14 was 700 mm, the length of the homogenizing section 15 was 1540 mm, the length of the first kneading section 16 was 250 mm, and the length of the second kneading section 17 was 232 mm.
And, the first diameter is less than a third diameter, the second diameter is less than the third diameter, the first diameter is 100 millimeters, the second diameter is 115 millimeters, and the third diameter is 139 millimeters.
A first transition section 18 is arranged between the first mixing section 16 and the second mixing section 17, a second transition section 19 is arranged between the first mixing section 16 and the homogenizing section 15, the first transition section 18 and the second transition section 19 are polished rod sections, the bottom diameter of the first transition section 18 is equal to the bottom diameter of the second transition section 19, the bottom diameter of the first transition section 18 and the bottom diameter of the second transition section 19 are both fourth diameters, the fourth diameter is smaller than three diameters and larger than the first diameter, preferably, the fourth diameter is equal to the second diameter, and the fourth diameter is 115 mm.
Preferably, the screw body 10 has a nitrided screw body 101 and a wear-resistant and corrosion-resistant alloy layer 102 formed on the surface of the nitrided screw body, thus effectively improving the wear resistance and corrosion resistance of the screw, prolonging the service life of the screw, reducing the number of times the screw needs to be replaced in operation, and controlling the manufacturing cost of the screw and the product.
The utility model mainly adopts the design of the feeding section and the compression section, and utilizes the first and second transition areas to increase the contact area of raw materials in the feeding section and the compression section, thereby being beneficial to the raw materials to be uniformly converted into a molten state from a solid state, facilitating the subsequent mixing operation, ensuring the smooth surface and uniform color of the prepared product, ensuring the quality effect of the product, ensuring the more uniform mixing of the raw materials by matching with the arrangement of the first and second mixing sections, improving the quality of the product, ensuring the ingenious and reasonable structural design, meeting the use requirements of users and having wide application range; and the wear-resistant and corrosion-resistant alloy layer on the surface of the screw body effectively improves the wear resistance and corrosion resistance of the screw, prolongs the service life of the screw, reduces the number of times of replacement of the screw during working, and controls the manufacturing cost of the screw and products.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.
Claims (7)
1. A mixing screw structure, characterized in that: the screw comprises a screw body, wherein the screw body is sequentially provided with a connecting section, a fixing section, a feeding section, a compression section, a homogenizing section, a first mixing section and a second mixing section from right to left, and the feeding section, the compression section, the homogenizing section, the first mixing section and the second mixing section are provided with core columns with circular sections; wherein:
the core column of the feeding section is a cylinder, the bottom diameter of the feeding section is a first diameter, a first screw tooth is arranged at the right section position of the core column of the feeding section, and a first transition area is formed at the left section position of the core column of the feeding section;
the core column of the compression section is a cone which is gradually designed from right to left, a second screw tooth is arranged at the left section of the core column of the compression section, a second transition area is formed at the right section of the core column of the compression section, the first transition area is connected with the second transition area, and the first transition area and the second transition area are polished rod areas;
the core column of the homogenizing section is a cylinder, the bottom diameter of the homogenizing section is a second diameter, a third screw tooth is arranged on the outer surface of the core column of the homogenizing section, the diameter of the right end of the core column of the compressing section is equal to the first diameter, and the diameter of the left end of the core column of the compressing section is equal to the second diameter;
the core column of the first mixing section is a cylinder, a first mixing groove and a second mixing groove are arranged on the core column of the first mixing section, and the first mixing groove and the second mixing groove are crossed and are arranged at equal intervals;
the core column of the second mixing section is a cylinder, a plurality of pins which are arranged at intervals are arranged on the core column of the second mixing section, and the bottom diameters of the first mixing section and the second mixing section are both the third diameter.
2. A mixing screw structure according to claim 1, wherein: the length of the feeding section is 1364 mm, the length of the compression section is 700 mm, the length of the homogenizing section is 1540 mm, the length of the first mixing section is 250 mm, and the length of the second mixing section is 232 mm.
3. A mixing screw structure according to claim 1, wherein: the first diameter is smaller than the third diameter, and the second diameter is smaller than the third diameter.
4. A mixing screw structure according to claim 3, wherein: the first diameter is 100 millimeters, the second diameter is 115 millimeters, and the third diameter is 139 millimeters.
5. A mixing screw structure according to claim 1, wherein: the novel mixing device comprises a first mixing section, a second mixing section, a first transition section, a second transition section, a polished rod section, a fourth diameter and a third diameter, wherein the first transition section is arranged between the first mixing section and the second mixing section, the second transition section is arranged between the first mixing section and the homogenizing section, the bottom diameter of the first transition section is equal to the bottom diameter of the second transition section, and the bottom diameter of the first transition section and the bottom diameter of the second transition section are both the fourth diameter.
6. A mixing screw structure according to claim 5, wherein: the fourth diameter is 115 millimeters.
7. A mixing screw structure according to claim 1, wherein: the screw body is provided with a nitriding screw body and a wear-resistant and corrosion-resistant alloy layer formed on the surface of the nitriding screw body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322086173.7U CN220614834U (en) | 2023-08-03 | 2023-08-03 | Mixing screw structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322086173.7U CN220614834U (en) | 2023-08-03 | 2023-08-03 | Mixing screw structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220614834U true CN220614834U (en) | 2024-03-19 |
Family
ID=90225830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322086173.7U Active CN220614834U (en) | 2023-08-03 | 2023-08-03 | Mixing screw structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220614834U (en) |
-
2023
- 2023-08-03 CN CN202322086173.7U patent/CN220614834U/en active Active
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