CN219988416U - Single screw rod structure is carried to compounding - Google Patents
Single screw rod structure is carried to compounding Download PDFInfo
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- CN219988416U CN219988416U CN202321000403.7U CN202321000403U CN219988416U CN 219988416 U CN219988416 U CN 219988416U CN 202321000403 U CN202321000403 U CN 202321000403U CN 219988416 U CN219988416 U CN 219988416U
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- screw
- conveying
- conveying screw
- machine barrel
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- 238000013329 compounding Methods 0.000 title claims description 3
- 239000000463 material Substances 0.000 claims abstract description 36
- 238000002156 mixing Methods 0.000 claims abstract description 31
- 238000002844 melting Methods 0.000 claims abstract description 26
- 230000008018 melting Effects 0.000 claims abstract description 26
- 239000011295 pitch Substances 0.000 claims description 14
- 239000000498 cooling water Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 3
- 239000013618 particulate matter Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000009700 powder processing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses a mixed material conveying single screw structure, which comprises a machine barrel, wherein the machine barrel is sequentially provided with a conveying area, a melting area and a mixing area along the feeding-discharging direction, a screw is arranged in the machine barrel, penetrates through two ends of the machine barrel and is rotationally connected with the machine barrel, a conveying screw and a scattering unit are connected to the screw, the conveying screw is positioned in the conveying area, the scattering unit is respectively positioned in the melting area and the mixing area, and the conveying screw and the scattering unit are continuously connected to the screw; through setting the screw rod to continuous different transport spiral and break up the unit, the transport spiral pitch of barrel front end is greater than the pitch of barrel rear end transport spiral, and the transport spiral of front end can carry the powdered carbon particulate matter of equidimension not, improves the conveying capacity, and terminal transport spiral pitch is less, can carry and boost the powdered carbon, forms the extrusion of the powdered carbon processing of being convenient for of certain shape.
Description
Technical Field
The utility model belongs to the technical field of extruder screws, and particularly relates to a single screw structure for mixing and conveying.
Background
Carbon powder is a powdery substance used for imaging and fixing on paper in a laser printer, black toner is composed of binding resin, carbon black, charge control agent, external additive and other components, and pigments of other colors and the like are required to be added into color toner.
In the process of producing carbon powder, the extruder is required to extrude different materials after stirring, the screw rod in the extruder provides conveying, melting (plasticizing) and mixing of resin, the conveying screw of the existing screw rod in different areas of the machine barrel and the size of a scattering unit are the same, the conveying screw only has a conveying function, the materials cannot be further scattered to improve the mixing uniformity and the distribution among the materials, and the conveying efficiency is general.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model aims to provide a single screw structure for conveying mixed materials.
The technical scheme adopted by the utility model is as follows: the device comprises a machine barrel, a conveying area, a melting area and a mixing area are sequentially arranged in the machine barrel along the feeding and discharging direction, a screw is arranged in the machine barrel, penetrates through two ends of the machine barrel and is rotationally connected with the machine barrel, a conveying screw and a scattering unit are connected to the screw, the conveying screw is positioned in the conveying area, the scattering unit is respectively positioned in the melting area and the mixing area, and the conveying screw and the scattering unit are continuously connected to the screw.
Preferably, the conveying screw includes a first conveying screw, a second conveying screw, and a third conveying screw, and the first conveying screw and the second conveying screw are respectively positioned at two ends of the screw.
Preferably, the pitch of the first conveying screw is larger than that of the second conveying screw, the depth of the second conveying screw is larger than that of the first conveying screw, and the second conveying screw forms a reinforced pressure area in the machine barrel for pressurizing and conveying materials to the discharge end of the machine barrel.
Preferably, the breaking unit is located between the first conveying screw and the second conveying screw, and the breaking unit includes breaking tooth blocks, and a plurality of breaking tooth blocks are respectively arranged in the melting zone and the mixing zone along the length direction of the screw, and the distances between the two breaking tooth blocks are equal.
Preferably, the cross section of the breaking tooth block is elliptical, projections of the breaking tooth blocks are not overlapped, the distance from the breaking tooth block to the inner wall of the machine barrel in the melting area is larger than the distance from the breaking tooth block to the inner wall of the machine barrel in the mixing area, the lengths of the two breaking units are identical, the third conveying screw is connected between the two breaking units, and the screw pitches of the first conveying screw and the third conveying screw are identical.
Preferably, the conveying screw and the two breaks are fixedly connected to the screw.
Preferably, the screw is a hollow screw, and a cooling water circulation cavity is formed in the hollow screw.
The beneficial effects of the utility model are as follows:
the utility model is used as a material mixing and conveying single screw structure, the screw is arranged into continuously different conveying screws and scattering units, the screw pitch of the conveying screw at the front end of the machine barrel is larger than that of the conveying screw at the rear end of the machine barrel, the conveying screw at the front end can convey carbon powder particles with different sizes, the conveying capacity is improved, the screw pitch of the conveying screw at the tail end is smaller, the carbon powder can be conveyed and pressurized, a certain pressure is established, the material at the discharge port has a certain density, and extrusion with a certain shape convenient for carbon powder processing is formed; the scattering tooth blocks in the melting area and the scattering tooth blocks in the mixing area are set to be different in size, so that carbon powder with different sizes can be coarsely scattered and then uniformly finely scattered, the scattering effect of the carbon powder and the uniformity of mixing with other components are improved, and the processing quality is improved; the screw rod is the heat conductor itself, through setting the screw rod to the cavity form to be equipped with the cooling water circulation in its inside, improve the radiating effect, prevent that conveying and feeding process from appearing the problem.
Drawings
The utility model will be described in further detail with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic structural view of the breaking up tooth block according to the present utility model.
In the figure: A. a transfer zone; B. a melting zone; C. a mixing zone; D. reinforcing the pressure zone; 1. a barrel; 2. a screw; 3. scattering tooth blocks; 4. a first conveying screw; 5. a second conveying screw; 6. a third conveying screw; 7. and a feed inlet.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
The specific embodiment of the utility model is described below with reference to fig. 1-2, and the single screw structure for conveying mixed materials comprises a machine barrel 1, wherein the machine barrel 1 is sequentially provided with a conveying area A, a melting area B and a mixing area C along the feeding-discharging direction, a screw 2 is arranged in the machine barrel 1, the screw 2 penetrates through two ends of the machine barrel 1 and is rotationally connected with the machine barrel 1, a conveying screw and a scattering unit are connected to the screw 2, the conveying screw is positioned in the conveying area A, the scattering unit is respectively positioned in the melting area B and the mixing area C, and the conveying screw and the scattering unit are continuously connected to the screw 2; the screw rod 2 is continuously connected with a conveying screw and is broken up, the sizes in each working area are different, the conveying quantity and the conveying speed at two ends are changed by changing the screw pitch of the conveying screw, and the breaking up unit can further refine and break up materials in the melting area B and the mixing area C under conveying, so that different materials are fully melted and homogenized.
Advantageously, the conveying screw comprises a first conveying screw 4, a second conveying screw 5 and a third conveying screw 6, wherein the first conveying screw 4 and the second conveying screw 5 are respectively positioned at two ends of the screw 2, and the conveying screw is arranged at two ends, so that the conveying speed is increased, and the conveying load of the front conveying screw can be effectively avoided.
The screw pitch of the first conveying screw 4 is larger than that of the second conveying screw 5, the screw groove depth of the second conveying screw 5 is larger than that of the first conveying screw 4, the second conveying screw 5 forms a reinforced pressure area D in the machine barrel 1, a round table-shaped protruding block arranged at one end of the screw 2 is used for pressurizing and conveying materials to the discharge end of the machine barrel 1, a feed inlet 7 is arranged on the first conveying screw 4, the materials at the feed inlet 7 are easy to accumulate or large-particle materials exist, the large screw pitch can increase the interval between the screw pitch and the inner wall of the machine barrel 1, the conveying speed is further increased, the second conveying screw 5 has a small screw pitch, raw materials after melting and mixing can be conveyed to the right end, the excessive screw pitch can lead to omission of conveying, the pressure of the materials can be increased to a certain extent, the materials at the discharge outlet have a certain compactness through establishing a certain pressure, and extrusion of a certain shape which is convenient for carbon powder processing is formed.
The utility model discloses a powder mixing device, including the unit of scattering is located between the first conveying screw 4 with the second conveying screw 5, the unit of scattering is including breaking up tooth piece 3, break up tooth piece 3 in melting district B with along in the mixing district C screw rod 2 length direction is equipped with a plurality ofly respectively, and two break up the distance between tooth piece 3 equals, and different materials get into melting district B and mixing district C under the conveying of conveying screw, break up tooth piece 3 of the unit of scattering in the melting district B break up magnetic powder and other materials, through the friction with barrel 1 inner wall, improve the misce bene.
The cross section of the breaking tooth block 3 is elliptical, projections of the breaking tooth blocks 3 are not overlapped, the distance from the breaking tooth block 3 to the inner wall of the machine barrel 1 in the melting area B is larger than the distance from the breaking tooth block 3 to the inner wall of the machine barrel 1 in the mixing area C, the lengths of the two breaking units are the same, the third conveying screw 6 is connected between the two breaking units, the screw pitches of the first conveying screw 4 and the third conveying screw 6 are the same, the breaking tooth block 3 in the melting area B is smaller than the size of the breaking tooth block 3 in the mixing area C, materials with different sizes can be broken, the mixing area C is matched with high temperature, the sizes of the materials are further refined and uniform, an ideal structure is formed, and the functions of distributivity and dispersivity are achieved; the third conveying screw 6 can receive the materials in the melting zone B and convey the materials to the mixing zone C for treatment, and the third conveying screw 6 is positioned in the middle of the machine barrel 1, so that the conveying efficiency of the whole machine barrel 1 can be improved.
Advantageously, the conveying screw and the two breaking units are fixedly connected to the screw 2, so that the material is conveyed to the right end of the machine barrel 1.
The beneficial, screw rod 2 is cavity screw rod 2, form the cooling water circulation chamber in the cavity screw rod 2, because screw rod 2 self is the heat conduction body, for conveying and feeding process prevent to go wrong, the inside cooling water circulation that has of screw rod 2 carries out cooling to screw rod 2, prevents that the high temperature from influencing mechanical work.
The working principle of the utility model is as follows: different materials are added from a feed port 7 and enter a conveying area A, the conveying area A can convey the materials to the right end, and the maximum diameter of the conveyed materials can be ensured to be conveyed;
the materials are conveyed to a melting zone B in a conveying zone A, the materials are scattered by a scattering unit in the melting zone B, friction is formed between the continuous irregular installation of a plurality of scattering tooth blocks 3 and the inner wall of a machine barrel 1, the materials are scattered and thinned, and the mixing uniformity and the distribution among the materials are improved;
the materials are pushed by the first conveying screw 4, matched with the third conveying screw 6, conveyed to the right end in the melting zone B, enter a mixing zone C heated at high temperature, and further refine and uniform the component sizes of the materials through the rotation of the scattering tooth blocks 3 to form an ideal structure, have the functions of distributive and dispersive mixing, and are conveyed to the third conveying screw 6 by the conveying screw;
the third conveying screw 6 can convey materials to the discharge end, the pressure of the materials and the discharge port can be improved by reducing the screw pitch of the conveying screw and improving the outer diameter, a certain pressure can be effectively established, the materials at the discharge port have a certain density, and extrusion with a certain shape convenient for carbon powder processing is formed.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The foregoing is merely illustrative of the structures of this utility model and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the utility model or from the scope of the utility model as defined in the accompanying claims.
Claims (7)
1. The utility model provides a single screw rod structure is carried to compounding, includes the barrel, the barrel is equipped with conveying district, melting zone and mixing district in proper order along feeding to ejection of compact direction, its characterized in that: the machine barrel is internally provided with a screw rod, the screw rod penetrates through two ends of the machine barrel and is rotationally connected with the machine barrel, the screw rod is connected with a conveying screw and a scattering unit, the conveying screw is located in the conveying area, the scattering unit is located in the melting area and the mixing area respectively, and the conveying screw and the scattering unit are continuously connected to the screw rod.
2. A compound delivery single screw structure as defined in claim 1 wherein: the conveying screw comprises a first conveying screw, a second conveying screw and a third conveying screw, and the first conveying screw and the second conveying screw are respectively positioned at two ends of the screw.
3. A compound delivery single screw structure as defined in claim 2 wherein: the pitch of the first conveying screw is larger than that of the second conveying screw, the depth of the second conveying screw is larger than that of the first conveying screw, and the second conveying screw forms a reinforced pressure area in the machine barrel and is used for pressurizing and conveying materials to the discharge end of the machine barrel.
4. A compound delivery single screw structure as defined in claim 3 wherein: the breaking unit is located between the first conveying screw and the second conveying screw, the breaking unit comprises breaking tooth blocks, the breaking tooth blocks are respectively arranged in the melting area and the mixing area along the length direction of the screw, and the distances between the breaking tooth blocks are equal.
5. A compound delivery single screw structure as defined in claim 4 wherein: the section of the breaking tooth block is elliptical, projections of the breaking tooth blocks are not overlapped, the distance from the breaking tooth block to the inner wall of the machine barrel in the melting area is larger than the distance from the breaking tooth block to the inner wall of the machine barrel in the mixing area, the lengths of two breaking units are identical, a third conveying screw is connected between the breaking units, and the screw pitches of the first conveying screw and the third conveying screw are identical.
6. A compound delivery single screw structure as defined in claim 5 wherein: the conveying screw and the two scattering units are fixedly connected to the screw.
7. A compound delivery single screw structure as defined in claim 1 wherein: the screw rod is a hollow screw rod, and a cooling water circulation cavity is formed in the hollow screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321000403.7U CN219988416U (en) | 2023-04-28 | 2023-04-28 | Single screw rod structure is carried to compounding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321000403.7U CN219988416U (en) | 2023-04-28 | 2023-04-28 | Single screw rod structure is carried to compounding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219988416U true CN219988416U (en) | 2023-11-10 |
Family
ID=88614720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321000403.7U Active CN219988416U (en) | 2023-04-28 | 2023-04-28 | Single screw rod structure is carried to compounding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219988416U (en) |
-
2023
- 2023-04-28 CN CN202321000403.7U patent/CN219988416U/en active Active
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