CN117428960A - Super-viscous rubber continuous mixing device - Google Patents
Super-viscous rubber continuous mixing device Download PDFInfo
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- CN117428960A CN117428960A CN202311668023.5A CN202311668023A CN117428960A CN 117428960 A CN117428960 A CN 117428960A CN 202311668023 A CN202311668023 A CN 202311668023A CN 117428960 A CN117428960 A CN 117428960A
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- 238000002156 mixing Methods 0.000 title claims abstract description 157
- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 73
- 238000004513 sizing Methods 0.000 claims abstract description 43
- 239000007787 solid Substances 0.000 claims abstract description 34
- 239000011344 liquid material Substances 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000010008 shearing Methods 0.000 abstract description 8
- 238000010924 continuous production Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 16
- 238000005265 energy consumption Methods 0.000 description 13
- 150000001875 compounds Chemical class 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000013329 compounding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002572 peristaltic effect Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 230000010006 flight Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- 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
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/485—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with three or more shafts provided with 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
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
-
- 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
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
- B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to a super-viscous rubber continuous mixing device, which comprises: the rubber planetary continuous mixing mechanism comprises a machine barrel, a central screw rod arranged along the central axis of the machine barrel and a plurality of planetary screw rods uniformly arranged between the machine barrel and the central screw rod; the solid sizing material feeding mechanism is used for providing solid sizing materials for the rubber planetary continuous mixing mechanism; and the liquid material feeding mechanism is used for providing liquid materials for the rubber planetary continuous mixing mechanism. The super-viscous rubber continuous mixing device provided by the invention has a simple structure and a reliable principle. The double forced feeding mechanisms are adopted to alternately work, so that the continuity of feeding is ensured, the high-efficiency and intelligent continuous mixing of the solid and liquid super-viscous rubber is realized, and the processing requirement for continuous production of the super-viscous rubber is completely met. Solves the problems of insufficient shearing force, lower mixing efficiency and difficult rubber discharging of the ultra-viscosity rubber material by using the existing continuous mixing equipment.
Description
Technical Field
The invention relates to the technical field of rubber continuous mixing equipment, in particular to a super-viscous rubber continuous mixing device.
Background
Mixing is a core link of rubber high-molecular polymer material production, and the quality of the mixed rubber quality has a critical influence on the performance and service life of rubber products. The rubber continuous mixing equipment is advanced mixing equipment and is mainly composed of the following parts: the first part is a core mixing element, a screw or a rotor; the second part is a feeding device; the third part is a temperature control system; the fourth part is the mixing chamber or barrel. At present, the existing intermittent mixing device has the problems of poor quality stability of sizing materials, large energy loss, difficulty in mixing the super-viscosity sizing materials, and incapability of realizing intellectualization and greenization in the processing process. Specifically, for an ultra-viscosity sizing material, the conventional mixing device generally faces the slow feeding process of the sizing material, and cannot realize efficient extrusion and mixing, so that the production efficiency is reduced, the uniformity requirements of the mixing sizing material on temperature, time and pressure cannot be met, and the quality of the mixing sizing material cannot be ensured.
Due to the nature of the ultra-viscous compound, the compound will adhere after entering the mixing device. The rubber and the compounding agent cannot be mixed according to the proportion, and the mixing efficiency and the quality of the mixed rubber are reduced. In the mixing device, the super-viscosity sizing material can be plasticized along with continuous extrusion of a rotor, so that the sizing material shows better flow characteristics. However, in order to ensure consistency of the plasticization and proportioning of the compound, this requires that the compound stay for a suitable period of time as it moves with the mixing rotor. Different from the processing characteristics and the process of common rubber, the ultra-viscosity rubber has higher requirements on the tightness of equipment and the continuity of the mixing process due to the special physical property and the consideration of the proportion of liquid and solid sizing materials in the mixing process.
Disclosure of Invention
Aiming at the defects, the invention provides the super-viscous rubber continuous mixing device which is applicable to super-viscous rubber materials and adopts a planetary screw structure.
The invention is realized by the following technical scheme:
an ultra-viscous rubber continuous mixing device, comprising:
the rubber planetary continuous mixing mechanism comprises a machine barrel, a central screw rod arranged along the central axis of the machine barrel and a plurality of planetary screw rods uniformly arranged between the machine barrel and the central screw rod;
the solid sizing material feeding mechanism is used for providing solid sizing materials for the rubber planetary continuous mixing mechanism; and
and the liquid material feeding mechanism is used for providing liquid materials for the rubber planetary continuous mixing mechanism.
Further, the inner wall of the machine barrel of the super-viscous rubber continuous mixing device is provided with threads meshed with a plurality of planetary screws.
Further, in the super-viscous rubber continuous mixing device, the central screw is provided with external threads meshed with the planetary screws.
Further, in the super-viscous rubber continuous mixing device, the number of the planetary screws is five.
Further, a super viscous rubber continuous mixing device, solid sizing material feeding mechanism include:
the single-screw feeding and mixing mechanism is provided with a solid sizing material feeding port for primarily plasticizing, melting and mixing the solid sizing material; and
the conveying mechanism is connected between the single-screw feeding and mixing mechanism and the rubber planetary continuous mixing mechanism and is used for conveying the mixed solid sizing material into the rubber planetary continuous mixing mechanism.
Further, a super viscous rubber continuous mixing device, liquid material feeding mechanism includes:
a metering gear pump connected to the rubber planetary continuous mixer through a liquid sizing material conveying pipe; and
and the gear pump driving mechanism is connected with the metering gear pump and is used for driving the metering gear pump.
Further, in the super-viscous rubber continuous mixing device, the front end flange plate and the rear end flange plate are respectively arranged at the two ends of the machine barrel.
Further, the ultra-viscous rubber continuous mixing device, the rubber planetary continuous mixing mechanism further comprises a motor for driving the central screw to rotate; when the rubber planetary continuous mixing mechanism starts to work, the motor drives the central screw rod to rotate, and the central screw rod drives a plurality of planetary screw rods to rotate and do circular motion around the central screw rod.
Further, the machine barrel is provided with a first heating and cooling device.
Further, in the super-viscous rubber continuous mixing device, the single-screw feeding and mixing mechanism is provided with a second heating and cooling device.
The invention has the advantages and effects that:
1. the super-viscous rubber continuous mixing device provided by the invention ensures the accurate proportioning of rubber components in the continuous mixing process through the solid rubber material and liquid material feeding mechanism, and fully mixes and disperses the rubber material inside by utilizing the rubber planetary continuous mixing mechanism. Finally, extruding through a machine head of the super-viscous rubber continuous mixing device to complete the whole continuous mixing process, thereby obtaining the super-viscous rubber meeting the performance requirements.
2. The liquid material of the super-viscous rubber continuous mixing device provided by the invention is conveyed by adopting the peristaltic pump, the liquid material is conveyed forwards through the hose of the peristaltic pump by extrusion of the two rollers, the volume of the material is the volume of the hose cavity, and the conveying amount is equal each time, so that the accurate feeding amount is realized.
3. The super-viscous rubber continuous mixing device provided by the invention has a simple structure and a reliable principle. The double forced feeding mechanisms are adopted to alternately work, so that the continuity of feeding is ensured, the high-efficiency and intelligent continuous mixing of the solid and liquid super-viscous rubber is realized, and the processing requirement for continuous production of the super-viscous rubber is completely met. Solves the problems of insufficient shearing force, lower mixing efficiency and difficult rubber discharging of the ultra-viscosity rubber material by using the existing continuous mixing equipment.
4. According to the super-viscous rubber continuous mixing device, a planetary continuous mixing machine is added on the basis of a single screw structure, pressure is built, and continuous and efficient mixing and extrusion of rubber materials on each area are realized. The planetary screw type meshing structure in the rubber planetary continuous mixing machine can enable the rubber material to be subjected to more shearing and stretching actions in the mixing process, a large amount of shearing heat is generated, and the viscosity of the rubber material in the mixing process can be reduced more quickly due to the higher shearing force and stretching frequency, so that the rubber material has better processing fluidity. In the mixing process, the rubber material continuously enters into the meshing gaps of the central screw and the planetary screw and the machine barrel along with the rotation of the planetary screw, and the planetary screw continuously performs circular motion around the central screw to continuously extrude the rubber material in the gaps, so that the rubber material in the machine barrel and the mixing screw can reach enough extrusion times in a certain time, and the mixing quality and the mixing efficiency of the rubber material are ensured.
Drawings
FIG. 1 shows a schematic structural diagram of a continuous mixing device for super-viscous rubber provided by the invention;
FIG. 2 shows a schematic structural diagram of a solid sizing material feeding mechanism of the super-viscous rubber continuous mixing device;
FIG. 3 shows a schematic structure diagram of a liquid material feeding mechanism of the super-viscous rubber continuous mixing device;
FIG. 4 is a schematic diagram showing the structure of a rubber planetary continuous mixing mechanism of the super-viscous rubber continuous mixing device provided by the invention;
FIG. 5 shows a schematic diagram of the connection relationship between a central screw and a planetary screw of the super-viscous rubber continuous mixing device;
FIG. 6 shows a difference chart comparing the unit energy consumption of three different mixing equipment;
FIG. 7 shows a schematic of standard deviation of Mooney viscosity test samples comparing three different compounding equipment;
FIG. 8 shows a graph of the variance of Mooney viscosity test samples comparing three different compounding equipment.
Reference numerals illustrate: the device comprises a single screw feeding mixing mechanism 1, a solid sizing material feeding port 2, a conveying mechanism 3, a motor 4, a rubber planetary continuous mixing mechanism 5, a liquid sizing material conveying pipe 6, a metering gear pump 7, a gear pump driving mechanism 8, a front end flange 9, a machine barrel 10, a rear end flange 11, a planetary screw 12 and a central screw 13.
Detailed Description
In order to make the purposes, technical solutions and advantages of the implementation of the present invention more clear, the technical solutions in the embodiments of the present invention are described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention. Embodiments of the present invention will be described in detail below with reference to the attached drawings:
in the description of the present invention, it is to be understood that, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "center," "longitudinal," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
Fig. 1 shows a schematic structural diagram of a continuous mixing device for super-viscous rubber. The super-viscous rubber continuous mixing device comprises: the device comprises a rubber planetary continuous mixing mechanism 5, a solid sizing material feeding mechanism and a liquid material feeding mechanism. The solid gum material feeding mechanism is used for providing solid gum material for the rubber planetary continuous mixing mechanism 5, and the liquid material feeding mechanism is used for providing liquid material for the rubber planetary continuous mixing mechanism 5. In the continuous mixing process, the solid sizing material feeding mechanism and the liquid material feeding mechanism continuously and accurately convey the solid sizing material and the liquid material into the rubber planetary continuous mixing mechanism 5 according to the actual proportioning requirement of the solid sizing material and the liquid material.
Fig. 4 is a schematic diagram showing a structure of a rubber planetary continuous kneading mechanism of the super-viscous rubber continuous kneading apparatus provided by the present invention. The rubber planetary continuous mixing mechanism 5 comprises a machine barrel 10, a central screw 13 and a plurality of planetary screws 12. The central screw 13 is installed in the barrel 10 along the central axis of the barrel 10, and a plurality of planetary screws 12 are uniformly arranged between the barrel 10 and the central screw 13. Specifically, the inner wall of the barrel 10 has flights engaging with the plurality of planetary screws 12, and the center screw 13 has external flights engaging with the plurality of planetary screws 12. The central axes of the barrel 10, the central screw 13 and the plurality of planetary screws 12 are all arranged in parallel to each other to ensure mutual engagement and stable operation. Specifically, the configuration and the number of the planetary screws directly determine the mixing effect and the mixing efficiency of the rubber planetary continuous mixer and determine the dispersing and mixing effect between rubber and filler and between fillers. Mixing means mixing the liquid material with the compounded rubber material, and dispersing means the degree of dispersion of the liquid material and the compounded rubber material. And extruding and mixing the liquid material and the mixed sizing material through a planetary screw extruder to realize the mixing and dispersion of the liquid material and the sizing material.
The planetary screw type structure is adopted, so that the mixing and dispersing of rubber and the compounding agent are more efficient, the rubber compound is subjected to more stretching and shearing actions in the rubber planetary continuous mixing mill within the same time, the strong shearing action and the stretching action are more beneficial to breaking of macromolecular chains in the rubber, the plasticizing melting capacity of the rubber planetary continuous mixing mill is enhanced, the processing fluidity of the rubber is better, the quality of the rubber compound and the dispersing effect of the rubber compound are indirectly improved, and finally the mixing capacity of the super-viscous rubber continuous mixing device is improved. In addition, the number of the planetary screws is changed, so that the production environment adapting to different formulas or different process conditions can be achieved, and the application range of the super-viscous rubber continuous mixing device is further improved. The number of planetary screws 12 is preferably, but not limited to, five. The barrel 10 may also be provided with a first heating and cooling device. Specifically, a circulating water channel is arranged in the machine barrel, and the temperature is controlled by connecting a mold temperature machine. The rubber material in the rubber planetary continuous mixing mechanism always keeps better heat exchange efficiency with the first heating and cooling device, so that the temperature of the rubber planetary continuous mixing mechanism is ensured to be relatively stable in the whole mixing process. In the mixing process, the rubber material is always in a proper temperature range, so that excessive heat generated by the rubber material under the actions of high-frequency shearing, stretching and friction is avoided, and the phenomenon of early vulcanization or scorching of the rubber material due to excessively rapid temperature rise is prevented; and the phenomenon that the processing fluidity of the sizing material is poor due to the fact that the Mooney viscosity of the sizing material is too high because the mixing temperature is too low is avoided. The front end flange 9 and the rear end flange 11 are respectively arranged at two ends of the machine barrel 10 and are used as sealing connectors to be connected with a machine head. The rubber planetary continuous mixing mechanism 5 further comprises a motor 4 for rotating a central screw 13. When the rubber planetary continuous mixing mechanism 5 starts to work, the motor 4 drives the speed reducer to drive the central screw rod 13, the central screw rod 13 serves as a sun gear, the planetary screw rods 12 are driven to move through gear meshing, the planetary screw rods 12 rotate and do circular motion around the central screw rod 13, and the machine barrel 10 serves as a gear ring to assist the planetary screw rods 12 to move.
Fig. 3 shows a schematic structural diagram of a liquid material feeding mechanism of the super-viscous rubber continuous mixing device. The liquid material feeding mechanism comprises a metering gear pump 7 and a gear pump driving mechanism 8. The metering gear pump 7 is connected to the rubber planetary continuous mixer 5 through a liquid rubber material conveying pipe 6, and the gear pump driving mechanism 8 is connected with the metering gear pump 7 and is used for driving the metering gear pump 7. During specific work, the liquid materials are stored in a liquid tank, are conveyed into the metering gear pump 7 through the peristaltic pump, and then the metering gear pump 7 is driven by the gear pump driving mechanism 8 (which can be a motor) to provide the liquid materials for the rubber planetary continuous mixing mechanism 5.
Fig. 2 shows a schematic structural diagram of a solid sizing material feeding mechanism of the super-viscous rubber continuous mixing device. The solid sizing material feeding mechanism comprises a single-screw feeding mixing mechanism 1 and a conveying mechanism 3. The single-screw feeding and mixing mechanism 1 is used for carrying out preliminary plasticization, melting and mixing on the solid sizing material, and is provided with a solid sizing material feeding port 2. The conveying mechanism 3 is used for conveying the mixed solid sizing material into the rubber planetary continuous mixing mechanism 5, and is connected between the single-screw feeding mixing mechanism 1 and the rubber planetary continuous mixing mechanism 5. The single screw feed mixing mechanism 1 may also be provided with a second heating and cooling device. Specifically, a circulating water channel is arranged on the single-screw feeding mixing mechanism 1 and is used for being connected into a mold temperature machine to realize heating and cooling and temperature control.
When the rubber planetary continuous mixer 5 starts to work, a plurality of planetary screws 12 do circular motion around a central screw 13 to periodically eat the rubber material in the conveying process. There is a gap between adjacent planetary screws in the rubber planetary continuous mixer 5, and a meshing gap is formed between the center screw 13, the planetary screws 12 and the barrel 10 when each planetary screw makes a circular motion around the center screw in the vicinity of the solid material feeding port 2. When the rubber material enters the gap along with rotation, the rubber material in the gap is continuously extruded by virtue of the circular motion of the planetary screw 12 around the central screw 13, so that efficient mixing and extrusion of the rubber material in the rubber planetary continuous mixer are realized, and meanwhile, the feeding stability of the rubber material in the rubber planetary continuous mixer 5 is ensured.
When the super-viscous rubber continuous mixing device is used, solid sizing material enters the single-screw feeding mixing mechanism 1 from the solid sizing material feeding port 2, is subjected to preliminary plasticizing, melting and mixing, and is conveyed into the rubber planetary continuous mixing mechanism 5 through the conveying mechanism 3. Due to the gear pump structure of the metering gear pump 7, the liquid material entering the metering gear pump can be quickly heated and pressurized, and the liquid material and the matching agent are quantitatively and quantitatively added into the rubber planetary continuous mixer 5 at a constant speed through the pressurizing effect of the metering gear pump 7 by the liquid material conveying pipe 6. The liquid material and the solid sizing material and the compounding agent realize the mixing and the dispersion of the sizing material in the rubber planetary continuous mixer 5. Finally, extruding the mixed rubber through a machine head of the super-viscous rubber continuous mixing device to complete the whole super-viscous rubber continuous mixing process.
As shown in fig. 6, by comparing the difference of unit energy consumption of three different mixing equipment, it can be seen that the unit energy consumption of the internal mixer is the largest, the unit energy consumption of the twin-screw continuous mixer is the second smallest, and the unit energy consumption of the ultra-viscous rubber continuous mixing device of the invention is the smallest. For the super-viscous rubber compound formula, the unit energy consumption of the super-viscous rubber continuous mixing device is 0.298kWh/kg, the unit energy consumption of the twin-screw continuous mixing machine is 0.334kWh/kg, the unit energy consumption of the internal mixer is 0.391kWh/kg, the unit energy consumption of the super-viscous rubber continuous mixing device is the lowest, the unit energy consumption of the super-viscous rubber continuous mixing device is 89.2 percent of the unit energy consumption of the twin-screw continuous mixing machine, and the unit energy consumption of the twin-screw continuous mixing machine is 76.2 percent of the unit energy consumption of the internal mixer.
As shown in fig. 7 and 8, the standard deviation and variance of the results of the mooney viscosity test of the rubber compound produced by the super-viscous rubber continuous mixing device of the invention are basically minimum, and the standard deviation and variance of the results of the rubber compound produced by the internal mixer are maximum, which means that the fluctuation of the quality of the rubber compound produced by the super-viscous rubber continuous mixing device of the invention is minimum and the fluctuation of the rubber compound produced by the internal mixer is maximum.
The above embodiments are only for illustrating the technical solution of the present invention, and are not intended to limit the implementation scope of the present invention. All equivalent changes and modifications within the scope of the present invention should be considered as falling within the scope of the present invention.
Claims (10)
1. A continuous mixing device for super-viscous rubber, which is characterized by comprising:
the rubber planetary continuous mixing mechanism (5) comprises a machine barrel (10), a central screw (13) arranged along the central axis of the machine barrel (10) and a plurality of planetary screws (12) uniformly arranged between the machine barrel (10) and the central screw (13);
a solid sizing material feeding mechanism for providing solid sizing material to the rubber planetary continuous mixing mechanism (5); and
and the liquid material feeding mechanism is used for providing liquid materials for the rubber planetary continuous mixing mechanism (5).
2. A continuous mixing device for ultra-viscous rubber according to claim 1, wherein the inner wall of the barrel (10) is provided with threads which are meshed with a plurality of planetary screws (12).
3. A continuous mixing device for ultra-viscous rubber according to claim 1, characterized in that the central screw (13) has external threads which engage with a number of the planetary screws (12).
4. A continuous mixing device for ultra-viscous rubber according to claim 1, wherein the number of planetary screws (12) is five.
5. A continuous mixing device for ultra-viscous rubber according to claim 1, wherein the solid gum material feeding mechanism comprises:
the single-screw feeding and mixing mechanism (1) is provided with a solid sizing material feeding port (2) for primarily plasticizing, melting and mixing the solid sizing material; and
the conveying mechanism (3) is connected between the single-screw feeding and mixing mechanism (1) and the rubber planetary continuous mixing mechanism (5) and is used for conveying the mixed solid sizing material into the rubber planetary continuous mixing mechanism (5).
6. A continuous mixing device for super-viscous rubber according to claim 1, wherein the liquid material feeding mechanism comprises:
a metering gear pump (7) connected to the rubber planetary continuous mixer (5) by a liquid gum material conveying pipe (6); and
and the gear pump driving mechanism (8) is connected with the metering gear pump (7) and is used for driving the metering gear pump (7).
7. A continuous mixing device for ultra-viscous rubber according to claim 1, wherein the front end flange (9) and the rear end flange (11) are respectively arranged at two ends of the machine barrel (10).
8. A continuous mixing device for super-viscous rubber according to claim 1, wherein the planetary continuous mixing mechanism (5) for rubber further comprises a motor (4) for driving the central screw (13) to rotate; when the rubber planetary continuous mixing mechanism (5) starts to work, the motor (4) drives the central screw rod (13) to rotate, and the central screw rod (13) drives a plurality of planetary screw rods (12) to rotate and do circular motion around the central screw rod (13).
9. A continuous mixing device for ultra-viscous rubber according to claim 1, characterized in that the barrel (10) is provided with first heating and cooling means.
10. A continuous mixing device for ultra-viscous rubber according to claim 5, wherein the single screw feed mixing mechanism (1) is provided with a second heating and cooling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311668023.5A CN117428960A (en) | 2023-12-05 | 2023-12-05 | Super-viscous rubber continuous mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311668023.5A CN117428960A (en) | 2023-12-05 | 2023-12-05 | Super-viscous rubber continuous mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117428960A true CN117428960A (en) | 2024-01-23 |
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ID=89555496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311668023.5A Pending CN117428960A (en) | 2023-12-05 | 2023-12-05 | Super-viscous rubber continuous mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117428960A (en) |
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2023
- 2023-12-05 CN CN202311668023.5A patent/CN117428960A/en active Pending
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