CN112123617A - Meshing shear type variable-gap six-edge rotor - Google Patents
Meshing shear type variable-gap six-edge rotor Download PDFInfo
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- CN112123617A CN112123617A CN202010729407.3A CN202010729407A CN112123617A CN 112123617 A CN112123617 A CN 112123617A CN 202010729407 A CN202010729407 A CN 202010729407A CN 112123617 A CN112123617 A CN 112123617A
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- 239000000463 material Substances 0.000 claims abstract description 64
- 238000002156 mixing Methods 0.000 claims abstract description 36
- 238000010008 shearing Methods 0.000 claims abstract description 14
- 239000003292 glue Substances 0.000 claims description 18
- 238000010074 rubber mixing Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims 1
- 238000004513 sizing Methods 0.000 abstract description 20
- 239000006185 dispersion Substances 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 210000003781 tooth socket Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
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Classifications
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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
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
- B29B7/20—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
-
- 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
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
- B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury type
- B29B7/186—Rotors therefor
-
- 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
- B29B7/22—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
- B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention belongs to the technical field of internal mixer rotors, and relates to a meshing shear type variable-gap six-edge rotor which is arranged on an internal mixer and used for plasticating and mixing rubber, and is formed by meshing and connecting a front rotor and a rear rotor which comprise a rotor body, six edges on the rotor body and rubber return threads; have sufficient shearing force, realized higher shear strain rate, abundant sizing material motion has guaranteed that the sizing material sneaks into and the homogeneity of dispersion, and simultaneously, the setting of returning the gluey screw thread can prevent that the sizing material in the internal mixer is excessive, and preceding rotor has increased a short arris at the unilateral with the more standard four-edged rotor of back rotor, is favorable to the backward flow of sizing material for the sizing material horizontal drunkenness in the internal mixing chamber is more obvious, more is favorable to the mixture of sizing material.
Description
The technical field is as follows:
the invention belongs to the technical field of internal mixer rotors, and particularly relates to a meshing shear type variable-gap six-edge rotor which is arranged on an internal mixer and used for plasticating and mixing rubber.
Background art:
the closed rubber mixing machine is called as internal mixer, also called as kneading machine, and is mainly used for plastication and mixing of rubber. The internal mixer is a machine which is equipped with a pair of rotors with specific shapes and can be relatively rotated, and can be used for plasticating and mixing polymer material in a clearance mode under the closed state of adjustable temperature and pressure, and is mainly formed from internal mixing chamber, rotor sealing device, feeding and pressing device, discharging device, driving device and machine base. In 1916, a first internal mixer was produced, in which a pair of elliptical rotors rotating in opposite directions and having a constant speed ratio were provided in a mixing chamber. In the thirty years, cylindrical rotors were available, with one long large rib and two small ribs. The rubber mixing is mainly completed by the mutual meshing of the convex edges of the two rotors, has the advantages of low temperature and excellent mixing quality, and is widely regarded in recent years. During this time also a triangular rotor and an S-shaped rotor appear. In the beginning of sixty years, the rotor ridges of the internal mixer developed from two spiral ridges to four spiral ridges, and a GK-type square-edged rotor, a benbury square-edged rotor, and the like appeared in succession.
At present, internal mixer rotors used in industrial production are divided into two major categories: one type is a shear type rotor represented by a Burley two-edge rotor, a quadrangular rotor and a GK type quadrangular rotor, and is mainly used for mass production in the rubber industry, particularly in the tire industry; the other type is a meshing type rotor represented by a cylindrical rotor, which is mainly used for mixing rubber compounds requiring low temperature and high quality. As shown in fig. 1, the cross-section of a GK-type quadrangular rotor is substantially similar to that of an elliptical rotor. The mixing mechanism is basically consistent with the mixing of the Boeher. The rotor has a pair of main and auxiliary ribs. The main edge is composed of a long edge and a short edge. The long edge is left-handed 30 degrees, the short edge is right-handed 48 degrees, the length ratio of the long edge to the short edge is about 6:4, and a low flat small edge is respectively arranged between the long edge and the short edge. The two small edges rotate in opposite directions and rotate by 30 degrees to form the secondary edges of the rotor. The diameter ratio of the main ribs to the secondary ribs is generally 10:9, and because the diameter of the secondary ribs is smaller than that of the main ribs, the circumferential shearing action of the rubber compound on the secondary ribs is basically avoided. The different radial gaps between the main and auxiliary arrises and the chamber wall enable the rubber to form two flowing layers which are continuously accumulated, separated and supplemented, thereby greatly strengthening the mixing effect. In addition, the two auxiliary edges enhance the shunting function and the axial stirring function on the sizing material. The mixing action of an internal mixer with meshed cylindrical rotors is completely different from that of an internal mixer with shearing rotors. The rubber mixing function is mainly completed by two meshed cylindrical rotors, as shown in figure 2, the meshed rotors are cylindrical, each cylindrical rotor is provided with a large long strip-shaped spiral ridge and two small ridges, and the shapes of the two small ridges are not consistent. The two rotors rotate oppositely and have the same rotating speed, the convex surface of one rotor is engaged in the concave surface of the other rotor, and different peripheral speeds can be formed due to the large difference between the diameters of the root parts and the top parts of the protruded ridges of the rotors, so that a large speed gradient is generated, and a strong friction shearing effect is generated on rubber materials passing through the rotors. The pushing action generated by the long-strip-shaped spiral convex edges pushes the rubber material to the other end from one end of the banburying chamber; as the rotors rotate, the glue is pushed back by the spiral ridges of the other rotor. The rubber material moves around the mixing chamber continuously and the rubber material level is updated continuously in such a circulating reciprocating way, and meanwhile, because the clearance between the two rotors is small, the deformation of the area between the two rotors is severe when the rotors rotate, so that the rubber material is rolled intensively. The surface area of the working part of the cylindrical rotor is 50 percent larger than that of the working parts of other types of rotors with corresponding feeding amounts, so that good heat exchange can be realized, and long-term mixing can be carried out at low mixing temperature. However, the discharge of the mesh type internal mixer is flaky and accompanied by small scraps, and the discharge time is long; the cylindrical rotor has poor charging characteristics, and the upper top bolt mainly has the function of improving the feeding capacity of the rotor.
The shear type rotor and the mesh type rotor cannot meet the actual demand of production, and the new rotor becomes an important subject of research. The six-edge variable-gap synchronous rotor disclosed in chinese patent 201510389968.2 includes a rotor body, an inner cavity, and three sets of edges, where the inner cavity is a through-type inner cavity, a base shaft is disposed at the center of the inner cavity, each set of edges is composed of a long edge and a short edge, the three sets of edges are uniformly distributed on a base circle of the rotor body and extend spirally along one end of the rotor body, the profile of a rotor section composed of the rotor body and the three sets of edges is formed by sequentially connecting nine molded lines end to end, the nine molded lines are three first molded lines, three second molded lines, and three third molded lines, respectively, each set of edges includes one first molded line, one second molded line, and one third molded line, and the third molded line of each set of edges intersects with the first molded line of the next set of edges; the first molded line is a convex molded line formed by a base circle and a transition circle on one side of the edge, the radius of the first molded line is an arc of R1, and the first molded line is internally tangent to the base circle; the third molded line is a concave molded line formed by a base circle and a transition circle on the other side of the edge, and the radius of the second molded line is an arc of R2; two ends of the second molded line are respectively intersected with the first molded line and the third molded line, and the second molded line is intersected with the first molded line and the third molded line to form a ridge top gap; the Chinese patent 201610737294.5 discloses a synchronous six-edge sawtooth type dynamic variable gap internal mixer rotor, which comprises a rotor body, wherein six protruding edges are arranged on the rotor body, the six protruding edges comprise three long edges and three short edges, and the protruding edges spirally extend from two ends of the rotor body to the middle and comprise a starting end and a terminal end; a plurality of tooth sockets are respectively arranged on the tops of the convex edges, the width difference of the tooth sockets on each convex edge is constant along the direction from the starting end to the ending end, and the distance between the tooth sockets is gradually reduced; the opening direction of the tooth grooves is parallel to the end face of the rotor body, and gradually-changed tooth groove intervals are arranged between the tooth grooves and adjacent tooth grooves; the width difference between two adjacent tooth sockets is a fixed value, the width difference between the two adjacent tooth sockets is also a fixed value, and the size of the tooth sockets and the space between the tooth sockets is determined by the length of the ridge; the long edge of the slot closest to the starting end on the long edge is used as a first long edge, the adjacent long edge along the spiral direction of the first long edge is a second long edge, the adjacent long edge along the opposite direction of the spiral direction of the first long edge is a third long edge, and the projection position relation of the slot on the axis of the rotor body is as follows: in the direction from the starting end to the ending end, the projection line of the first tooth space on the first long edge, the projection line of the first tooth space on the third long edge and the projection line of the first tooth space on the second long edge are arranged in sequence without intervals, and so on. The production efficiency is low, the conglomeration performance of the rubber material is poor, the carbon black dispersion degree and the tensile strength and the tearing strength of vulcanized rubber are low, and the compression heat generation is high. Therefore, the meshing shear type variable-gap hexagonal rotor is researched and designed, the shear strain rate is improved, the uniform mixing and dispersion of the rubber materials are guaranteed, and the meshing shear type variable-gap hexagonal rotor has practical significance.
The invention content is as follows:
the invention aims to overcome the defects in the prior art and seek to design a meshing shearing type variable-gap six-edge rotor to improve and strengthen the shearing capacity between the edge peaks of the rotor and the wall of an internal mixing chamber.
In order to achieve the purpose, the meshing shear type variable-gap hexagonal rotor comprises a front rotor and a rear rotor, when the front rotor and the rear rotor are used, the front rotor and the rear rotor are respectively sleeved on a screw rod, and the front rotor and the rear rotor are meshed.
The main structure of the front rotor related by the invention is the same as that of the rear rotor, and the front rotor comprises a rotor body, a first short edge, a second short edge, a third short edge, a fourth short edge, a first long edge, a second long edge and a glue returning thread; the two ends of the rotor body are provided with a first short edge, a second short edge, a third short edge and a fourth short edge at equal intervals, the first short edge, the second short edge, the third short edge and the fourth short edge are arranged in a staggered mode, the rotor body is provided with a first long edge and a second long edge which rotate to the structure at equal intervals, and two end portions of the rotor body are respectively provided with a glue returning thread.
The front rotor and the rear rotor are meshed to divide the rubber material into a plurality of spaces, and when the front rotor and the rear rotor are in different phases, the volumes of the divided different spaces are different, so that the rubber material is compressed and stretched in an internal mixing chamber, and a better mixing effect is achieved.
When the phase of the front rotor and the rear rotor related by the invention is operated from 30 degrees to 60 degrees, the area is 287mm2And 138mm2While the regions of (a) were fused, the rubber was sheared by the first and second long edges of the front and rear rotors, respectively, and divided into areas of 165mm, respectively2And 260mm2The area of the rubber material achieves the aim of shearing and tearing the rubber material, and increases the contact area of the rubber material and the filler.
Compared with a standard square-edge rotor, the front rotor and the rear rotor provided by the invention have the advantages that one short edge is added on one side, so that the backflow of the sizing material is facilitated, the transverse movement of the sizing material in the mixing chamber is more obvious, and the mixing of the sizing material is more facilitated.
Compared with the prior art, the invention is formed by meshing and connecting the front rotor and the rear rotor which comprise the rotor body, six ridges on the rotor body and the glue returning threads, when in use, the front rotor and the rear rotor are sleeved on the screw rod, and the screw rod absorbs the advantages of the meshing type and the shearing type mixing rubber materials, thereby overcoming the defects of each other, enhancing the axial movement of the rubber materials in the mixing chamber, and improving and strengthening the shearing capability between the ridge peaks and the mixing chamber wall; its major structure is simple, becomes the hexagonal structure in clearance, has sufficient shearing force, has realized higher shear strain rate, and abundant sizing material motion has guaranteed that the sizing material sneaks into and the homogeneity of dispersion, and simultaneously, the setting of returning the gluey screw thread can prevent that the sizing material in the internal mixer is excessive.
Description of the drawings:
fig. 1 is a schematic view of a principal structure of a GK-type quadrangular rotor according to the present invention.
Fig. 2 is a schematic view of a main structure of a mesh-type rotor according to the present invention.
Fig. 3 is a schematic diagram of the main structure of the present invention.
Fig. 4 is a schematic diagram of the explosion principle of the main structure of the present invention.
Fig. 5 is a development view of the rotor body according to the present invention.
Fig. 6 is a development view of the engagement state of the front rotor and the rear rotor according to the present invention.
Fig. 7 is a schematic view of the working state of the present invention.
Fig. 8 is a schematic diagram of the phase change of the front rotor and the rear rotor according to the present invention.
FIG. 9 is a graphical representation of the results of a dispersity test of the compounds refined according to the invention.
FIG. 10 is a graphical representation of the results of a dispersity test of a standard four-edged rotor size made according to the invention.
The specific implementation mode is as follows:
the invention is further described below by way of an embodiment example in conjunction with the accompanying drawings.
Example 1:
the meshing shear type variable-gap hexagonal rotor related to the embodiment comprises a front rotor 1 and a rear rotor 2, wherein the front rotor 1 and the rear rotor 2 are respectively sleeved on a screw 100 and then meshed; the main structure of the front rotor 1 is the same as that of the rear rotor 2, and the front rotor 1 comprises a rotor body 10, a first short edge 11, a second short edge 12, a third short edge 13, a fourth short edge 14, a first long edge 15, a second long edge 16 and a glue returning thread 17; one end of the rotor body 10 is provided with a first short edge 11 and a second short edge 12 of an arc gradual change structure, the other end of the rotor body 10 is provided with a third short edge 13 and a fourth short edge 14 of the arc gradual change structure, an included angle between the first short edge 11 and the second short edge 12 and an included angle between the third short edge 13 and the fourth short edge 14 are both 180 degrees, the first short edge 11 and the second short edge 12 are arranged in a staggered manner with the third short edge 13 and the fourth short edge 14, the first long edge 15 and the second long edge 16 of the arc gradual change structure respectively extend out from a gap between the first short edge 11 and the second short edge 12 to reach a gap between the third short edge 13 and the fourth short edge 14, and the outer sides of the first short edge 11, the second short edge 12, the third short edge 13 and the fourth short edge 14 are respectively provided with a glue returning thread 17 at two end portions of the rotor body 10.
The front rotor 1 and the rear rotor 2 are meshed, when rubber materials are mixed, the volumes of meshing spaces are changed irregularly, the rubber materials are compressed and stretched irregularly due to the change of the volumes of the meshing spaces, so that the rubber materials and the filling materials are mixed together fully, meanwhile, due to the difference of the diameters of ridge peaks and ridge bottoms, the linear velocity is different, so that the rubber materials are subjected to a shearing and tearing action under the action of the difference of the linear velocity, the contact surface of the torn rubber materials and the filling materials is larger, and the rubber materials and the filling materials are mixed more favorably; the first short edge 11, the second short edge 12, the third short edge 13 and the fourth short edge 14 are distributed at two ends of the rotor body 1, and the first long edge 15 and the second long edge 16 are distributed at the same side of the rotor body 10, so that the axial and circumferential flowing directions of rubber materials can be changed, the flowing of the rubber materials is more disordered, and the rubber mixing quality and the rubber mixing efficiency are improved; the glue returning thread 17 is used for sealing the glue in the mixing chamber, and when the front rotor 1 and the rear rotor 2 rotate, the glue returning thread 17 applies thrust to the glue in the direction of the mixing chamber to prevent the glue in the mixing chamber from overflowing.
Example 2:
the meshing shear type variable-gap six-edge rotor related to the embodiment is compared with a standard four-edge rotor, and the dispersion degree of the refined rubber materials shows that: the edges of the standard quadrangular rotor are of a rectangular structure, so that the impact force on the rubber material is overlarge during rubber mixing, the requirement on the power of a main driving motor is high, the energy consumption is seriously wasted, the rubber material is torn only by utilizing the speed difference of the front rotor and the rear rotor, the mixing function of the rubber material is only realized, and the compression and the stretching effects on the rubber material are avoided; the arris of meshing shearing formula variable-gap hexagonal rotor is circular arc gradual change structure, it is little to beat the effect to the impact of sizing material, it rubs the effect to have the pressure to the sizing material, be favorable to the mixture of sizing material, the power requirement to main driving motor has been reduced, can effectively reduce the energy consumption, and simultaneously, it tears the effect to the tensile of sizing material to have remain shearing type rotor, the compression and the tensile to the sizing material have been increased, more be favorable to mixing of sizing material, and, the back and forth rotor meshing, there are 6 arriss in other words in the unilateral, more be favorable to the sizing material to inwards flow, the problem that the banbury mixer rotor is unfavorable for the horizontal drunkenness of rubber has.
Claims (7)
1. The meshing shear type variable-gap hexagonal rotor is characterized by comprising a front rotor and a rear rotor, wherein the front rotor and the rear rotor are respectively sleeved on a screw rod when in use, the front rotor is meshed with the rear rotor to divide rubber materials into a plurality of spaces, and when the front rotor and the rear rotor are in different phases, the volumes of the divided different spaces are different, so that the rubber materials are compressed and stretched in a mixing chamber.
2. A meshing shear type variable-gap six-sided rotor according to claim 1, wherein the main body structure of the front rotor is the same as that of the rear rotor, and each of the front rotor and the rear rotor comprises a rotor body, a first short rib, a second short rib, a third short rib, a fourth short rib, a first long rib, a second long rib and a glue returning thread; the two ends of the rotor body are provided with a first short edge, a second short edge, a third short edge and a fourth short edge at equal intervals, the first short edge, the second short edge, the third short edge and the fourth short edge are arranged in a staggered mode, the rotor body is provided with a first long edge and a second long edge which rotate to the structure at equal intervals, and two end portions of the rotor body are respectively provided with a glue returning thread.
3. A meshing shear type variable gap hexagonal rotor according to claim 2, wherein the area is 287mm when the phases of the front rotor and the rear rotor are shifted from 30 ° to 60 °2And 138mm2While the regions of (a) were fused, the rubber was sheared by the first and second long edges of the front and rear rotors, respectively, and divided into areas of 165mm, respectively2And 260mm2The area of (a).
4. The meshing shear type variable-gap six-edge rotor as claimed in claim 2, wherein the first short edge and the second short edge and the third short edge and the fourth short edge are distributed at two ends of the rotor body 1, and the first long edge and the second long edge are distributed at the same side of the rotor body, so that the axial direction and the circumferential direction of the rubber compound can be changed, the flow of the rubber compound is more disordered, and the rubber mixing quality and the rubber mixing efficiency are improved.
5. The meshing shear type variable-gap hexagonal rotor as claimed in claim 2, wherein the glue returning threads are used for sealing the glue in the mixing chamber, and when the front rotor and the rear rotor rotate, the glue returning threads apply a thrust force to the glue in the direction of the mixing chamber to prevent the glue in the mixing chamber from overflowing.
6. The meshing shear type variable-gap hexagonal rotor according to claim 1, wherein when the rubber material is mixed, the volume of the meshing space is irregularly changed, the rubber material is subjected to irregular impact compression and stretching due to the volume change of the meshing space, so that the rubber material and the filling material are fully mixed together, meanwhile, due to the difference of the diameters of the ridge peaks and the ridge bottoms, the linear velocity is different, so that the rubber material is subjected to a shearing and tearing action under the action of the linear velocity difference, the contact surface between the torn rubber material and the filling material is larger, and the rubber material and the filling material are more favorably mixed.
7. A meshing shear type variable-gap six-edge rotor as claimed in claim 1, wherein a short edge is added on one side of the front rotor and the rear rotor compared with a standard four-edge rotor, so that backflow of rubber materials is facilitated, transverse movement of the rubber materials in the mixing chamber is more obvious, and mixing of the rubber materials is facilitated.
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| CN202010729407.3A CN112123617B (en) | 2020-07-27 | 2020-07-27 | Meshing shear type variable-gap six-edge rotor |
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| CN202010729407.3A CN112123617B (en) | 2020-07-27 | 2020-07-27 | Meshing shear type variable-gap six-edge rotor |
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| CN112123617B CN112123617B (en) | 2022-02-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112743694A (en) * | 2020-12-28 | 2021-05-04 | 大连橡胶塑料机械有限公司 | Shearing and meshing integrated rotor of internal mixer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112743694A (en) * | 2020-12-28 | 2021-05-04 | 大连橡胶塑料机械有限公司 | Shearing and meshing integrated rotor of internal mixer |
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