CN110682456A - Novel banbury mixer rotor - Google Patents
Novel banbury mixer rotor Download PDFInfo
- Publication number
- CN110682456A CN110682456A CN201810733636.5A CN201810733636A CN110682456A CN 110682456 A CN110682456 A CN 110682456A CN 201810733636 A CN201810733636 A CN 201810733636A CN 110682456 A CN110682456 A CN 110682456A
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- China
- Prior art keywords
- thread
- area
- threads
- rotor shaft
- rotor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
- B29B7/14—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with screw or helix
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
A novel rotor of an internal mixer comprises a rotor shaft, and a first mixing area, a conveying area, a second mixing area and a discharging area which are sequentially arranged on the rotor shaft, and is characterized in that the first mixing area comprises a long edge and a short edge which are mutually vertical in basic surface and are sequentially arranged along the central axis of the rotor shaft, the conveying area is connected with one end, close to the center of the rotor shaft, of the short edge, at least three first threads are arranged in the conveying area, the second mixing area is connected with the conveying area, at least three second threads are arranged in the second mixing area, and a third thread is arranged between two adjacent threads of the second threads; the discharging area is connected with the second mixing area, and at least one fourth thread with the number of spiral lines is arranged in the discharging area. The novel internal mixer rotor has the advantages of high feeding speed and strong milling, and obviously improves the milling effect and the production capacity.
Description
Technical Field
The invention relates to an internal mixer technology, in particular to an internal mixer rotor.
Background
The internal mixer is mainly used for plasticating and mixing rubber. The rotor of the internal mixer is an important component of the operation of the internal mixer, the conveying section of the conventional rotor at present has a deep single-guide-stroke screw groove, the angle of a screw fillet inclined plane of the screw section is large, the stability of conveyed materials is limited, the feeding amount is small, the mixing effect is poor, and the productivity is low.
The invention aims to provide a novel internal mixer rotor which can solve the problems of unstable material conveying, small feeding amount, poor mixing effect and low productivity in the working process of an internal mixer.
The technical scheme adopted by the invention for realizing the purpose is as follows: the novel rotor of the internal mixer is characterized in that the first mixing area comprises a long edge and a short edge which are vertical to each other in basic surface and are sequentially arranged along the central axis of the rotor shaft, the long edge and the short edge spirally extend clockwise from the end head of the rotor shaft to the central part of the rotor shaft, the starting edge of the long edge is connected with the end head of the rotor shaft, one end of the rotor shaft provided with the long edge is a head end, and the opposite end of the rotor shaft is a tail end;
the conveying area is connected with one end, close to the center of the rotor shaft, of the short edge, at least three first threads are arranged in the conveying area, and the first threads extend towards the tail end of the rotor shaft along the central axis of the rotor shaft;
the second mixing area is connected with the conveying area, at least three second threads with spiral lines are arranged in the second mixing area, the direction of the second threads is consistent with that of the first threads, and a third thread is arranged between two adjacent threads of the second threads;
the discharging area is connected with the second mixing area, at least one fourth thread with the number of spiral lines is arranged in the discharging area, and the direction of the fourth thread is consistent with that of the first thread.
Preferably, the long ribs have an axial projection length two to four times longer than the axial projection length of the short ribs.
Preferably, the first thread is a double lead triangular thread with a profile angle of 30-60 °.
Preferably, the second thread is a trapezoidal thread, the profile height of the second thread is twice that of the first thread, an isosceles triangle slot with an outward opening and an inward vertex angle is arranged at the top of the second thread along the center of the vertex, and the deviation between the angle of the vertex angle and the profile angle of the first thread is not more than 10 degrees.
Preferably, the third thread is equal to the first thread except for a non-equal pitch parameter, a single lead thread.
Preferably, the fourth thread is a double lead thread having a pitch twice that of said second thread.
Preferably, all the edges and corners on the rotor are welded with hard alloy.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
when the novel internal mixer rotor operates, the raw materials contact the first mixing area on the rotor, the prismatic sheets in the area perform high-efficiency shearing action on the materials, the materials are primarily and quickly milled, the first screw threads in the conveying area perform milling again on the materials, and rapidly advance the material into a second mixing zone, a second screw and a third screw of the second mixing zone, the unique high-low thread matching and the triangular groove type design at the top of the second thread can more fully mesh and mill the materials, so that the milling is stronger, the milling effect is obviously improved, the milled materials are meshed and pushed to a discharging area and a fourth thread of the discharging area, the large screw pitch pushes out the materials rapidly, so that the following materials are fully and rapidly rolled and mixed by the rotor, the materials are conveyed rapidly and stably, the mixing effect is improved, and the production efficiency is greatly improved.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the thread at 3 in FIG. 1;
FIG. 3 is a cross-sectional view of the thread at 4 in FIG. 1;
in the figure: 1-a rotor shaft; 2 a first mixing zone; 21-long edge; 22-short edge; 3-a first thread; 4-a second thread; 5-a conveying zone; 6-a second mixing zone; 7-a discharge zone; 8-third thread; 9-fourth thread; and 10-slotting.
Detailed Description
The invention is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1, the novel internal mixer rotor of the embodiment includes a rotor shaft 1, and a first mixing zone 2, a conveying zone 5, a second mixing zone 6, and a discharging zone 7 sequentially disposed thereon, wherein the first mixing zone 2 includes a long edge 21 and a short edge 22 which are substantially perpendicular to each other and sequentially disposed along a central axis of the rotor shaft, the long edge 21 and the short edge 22 extend in a clockwise spiral shape from an end of the rotor shaft 1 to a central portion of the rotor shaft 1, and a starting edge of the long edge 21 is connected with the end of the rotor shaft 1; one end of the rotor shaft 1 provided with the long edge 21 is a head end, and the opposite end is a tail end;
the conveying area 5 is connected with one end of the short edge 22 close to the center of the rotor shaft 1, at least three first threads 3 with spiral number are arranged in the conveying area 5, and the first threads 3 extend to the tail end of the rotor shaft 1 along the central axis of the rotor shaft 1;
the second mixing area 6 is connected with the conveying area 5, at least three second threads 4 with spiral number are arranged in the second mixing area 6, the direction of the second threads 4 is consistent with that of the first threads 3, and a third thread 8 is arranged between two adjacent threads of the second threads 4;
the discharging area 7 is connected with the second mixing area 6, at least one fourth thread 9 with spiral number is arranged in the discharging area 7, and the direction of the fourth thread 9 is consistent with that of the first thread 3.
The long ribs 21 have an axial projection length two to four times longer than the axial projection length of the short ribs 22.
The first thread 3 is a double-lead triangular thread with a thread form angle of 30-60 degrees.
The second screw thread 4 is trapezoidal thread, and its profile of tooth height is the twice of first screw thread, establishes the outside, the inside isosceles triangle fluting 10 of apex angle of opening at the screw thread top of second screw thread 4 along the crest center, and the angle of its apex angle is not more than 10 with the profile of tooth angular deviation of first screw thread 3.
The third thread 8 is identical to the first thread 3 except for a variable pitch parameter, a single lead thread.
The fourth thread 9 is a double lead thread with a double pitch than the second thread 4.
And all the edges and corners on the rotor are subjected to surfacing welding of hard alloy.
When the novel internal mixer rotor works, raw materials contact with a first mixing area 2 on the rotor, the long ribs 21 and the short ribs 22 in the area perform efficient shearing action on the materials, the materials are primarily and quickly milled, the materials are milled again by first threads 3 of a conveying area 5 and are quickly pushed into a second mixing area 6, second threads 4 and third threads 8 of the second mixing area 6 are matched with each other through unique high and low threads, and triangular grooves 10 at the tops of the second threads 4 are designed to more fully mesh and mill the materials, so that the milling is stronger, the mixing effect is obviously improved, the milled materials are meshed and pushed into a discharging area 7, fourth threads 9 of the discharging area 7 are rapidly pushed out by larger thread pitches, the following materials are also fully and quickly milled by each mixing area of the rotor, the rapid and stable material conveying is realized, the mixing effect is improved, but also greatly improves the production efficiency.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A novel rotor of an internal mixer comprises a rotor shaft, and a first mixing area, a conveying area, a second mixing area and a discharging area which are sequentially arranged on the rotor shaft, wherein the first mixing area comprises a long edge and a short edge which are basically vertical to each other and are sequentially arranged along the central axis of the rotor shaft; one end of the rotor shaft, which is provided with the long edge, is a head end, and the opposite end of the rotor shaft is a tail end;
the conveying area is connected with one end, close to the center of the rotor shaft, of the short edge, at least three first threads are arranged in the conveying area, and the first threads extend towards the tail end of the rotor shaft along the central axis of the rotor shaft;
the second mixing area is connected with the conveying area, at least three second threads with spiral lines are arranged in the second mixing area, the direction of the second threads is consistent with that of the first threads, and a third thread is arranged between two adjacent threads of the second threads;
the discharging area is connected with the second mixing area, at least one fourth thread with the number of spiral lines is arranged in the discharging area, and the direction of the fourth thread is consistent with that of the first thread.
2. The new internal mixer rotor according to claim 1, characterized in that: the axial projection length of the long edge is two to four times of the axial projection length of the short edge.
3. The new internal mixer rotor according to claim 2, characterized in that: the first thread is a double-lead triangular thread, and the tooth form angle of the first thread is 30-60 degrees.
4. A novel internal mixer rotor according to claim 3, characterized in that: the second screw thread is trapezoidal thread, and its profile of tooth height is twice first screw thread the outside, the inward isosceles triangle fluting of apex angle of opening is established along the crest center in the screw thread top of second screw thread, and the angle of its apex angle with the profile of tooth angle deviation of first screw thread is not more than 10.
5. The new internal mixer rotor according to claim 4, characterized in that: compared with the first thread, the third thread has the same parameters except that the thread pitch parameters are different and the single-lead thread is the same.
6. The new internal mixer rotor according to claim 5, characterized in that: the fourth thread is a double lead thread having a double pitch as the second thread.
7. A novel internal mixer rotor according to any one of claims 1 to 6, characterized in that: and all edges and corners on the rotor are subjected to surfacing welding of hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810733636.5A CN110682456A (en) | 2018-07-06 | 2018-07-06 | Novel banbury mixer rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810733636.5A CN110682456A (en) | 2018-07-06 | 2018-07-06 | Novel banbury mixer rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110682456A true CN110682456A (en) | 2020-01-14 |
Family
ID=69106958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810733636.5A Withdrawn CN110682456A (en) | 2018-07-06 | 2018-07-06 | Novel banbury mixer rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110682456A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123617A (en) * | 2020-07-27 | 2020-12-25 | 青岛科技大学 | Meshing shear type variable-gap six-edge rotor |
-
2018
- 2018-07-06 CN CN201810733636.5A patent/CN110682456A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112123617A (en) * | 2020-07-27 | 2020-12-25 | 青岛科技大学 | Meshing shear type variable-gap six-edge rotor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200114 |
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| WW01 | Invention patent application withdrawn after publication |