CN106426830B - Dynamic mixing method and device driven by eccentric rotor unbalance loading - Google Patents
Dynamic mixing method and device driven by eccentric rotor unbalance loading Download PDFInfo
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- CN106426830B CN106426830B CN201610846509.7A CN201610846509A CN106426830B CN 106426830 B CN106426830 B CN 106426830B CN 201610846509 A CN201610846509 A CN 201610846509A CN 106426830 B CN106426830 B CN 106426830B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/60—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/62—Barrels or cylinders
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a dynamic mixing method and device driven by eccentric rotor unbalance loading, wherein the method comprises the steps of arranging an eccentric mixing ring with a flow channel at the tail end of an eccentric rotor, and driving the eccentric mixing ring to perform revolution motion in the process of simultaneously performing autorotation and constant-speed reverse revolution around the center of a stator, so that soft materials flowing through the flow channel on the eccentric mixing ring are further mixed. The device comprises a stator, an eccentric rotor, a support ring and an eccentric mixing ring, wherein the eccentric rotor is arranged inside the stator, the tail end of the eccentric rotor is provided with the eccentric mixing ring, the periphery of the eccentric mixing ring is connected with the stator through the support ring, and the support ring is fixed on the inner side of the stator. By arranging the eccentric mixing ring, on one hand, the soft materials can be further mixed, so that the mixing effect is improved; on the other hand, the eccentric load can be balanced to reduce the extrusion vibration of the eccentric rotor, thereby effectively avoiding the deformation of the eccentric rotor and ensuring the more stable operation of the eccentric rotor.
Description
Technical Field
The invention relates to the technical field of soft material conveying, in particular to a dynamic mixing method and a dynamic mixing device driven by eccentric rotor unbalance loading.
Background
The invention discloses a method and a device for plasticizing and transporting volume pulsating deformation of an eccentric rotor in Chinese invention patent application with the application number of 201410206552.8, and provides a novel polymer processing new method and theory, so that a high polymer material is dominated by the volume pulsating deformation in the whole plasticizing processing process, and the volume of the material between the eccentric rotor and a stator is changed periodically along the axial direction and the radial direction of the stator by utilizing the rolling action of the eccentric rotor in the inner cavity of the stator during the autorotation and the constant speed reverse revolution, thereby realizing the plasticizing and transporting of the volume pulsating deformation of the material. The eccentric rotor equipment comprises a stator and a rotor arranged in an inner cavity of the stator; the rotor comprises a plurality of rotor eccentric spiral sections and a plurality of rotor eccentric straight-line sections which are alternately arranged; the stator inner cavity also comprises a plurality of stator spiral sections and a plurality of stator straight sections which are alternately arranged; the rotor eccentric spiral section and the rotor eccentric straight line section correspond to the stator spiral section and the stator straight line section one by one; along the conveying direction of the materials, the screw pitches of the eccentric spiral sections of the rotors and the spiral sections of the stators are gradually reduced; the radial sections of the spiral section and the straight line section of the inner cavity of the stator are both long holes, the eccentric rotor reciprocates in the long holes of the inner cavity of the stator, and the movement stroke is twice of the maximum eccentricity of the rotor. Because the eccentric rotor rolls in the inner cavity of the stator when rotating and revolving in the same speed and in the reverse direction, the space volume between the eccentric rotor and the stator changes periodically along the axial direction and the radial direction of the stator alternately, and the materials between the stator and the rotor bear the volume pulsation deformation action when being compressed and released periodically, thereby completing the plasticizing transportation process comprising solid compaction, melting plasticizing, mixing and melt conveying. The device disclosed by the invention has the characteristics of short material thermal mechanical process, low energy consumption, wide adaptability and the like.
However, in practical application, a certain eccentric amount exists between a stator and an eccentric rotor shaft in the eccentric rotor device, when the eccentric rotor rotates and revolves in the opposite direction at a constant speed, a reaction force of a material on one side of the eccentric rotor to extrude the material is large, and a reaction force of the material on the other side of the eccentric rotor to extrude the material is small, so that a rotor bearing in the eccentric rotor device is under the action of an eccentric load, and the eccentric rotor device has the problems of large extrusion vibration, unstable operation of the rotor shaft, deformation of the rotor shaft and the like. The same is true in the transport of other soft materials, other than in the field of polymer processing.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a dynamic mixing method driven by eccentric rotor unbalance loading, which utilizes the balance of eccentric load to provide mixing power, reduces extrusion vibration, enables the structure and the operation of a rotor shaft to be more stable and further improves the mixing effect of soft materials.
It is another object of the present invention to provide a dynamic mixing apparatus using eccentric rotor offset drive for the above method.
The technical scheme of the invention is as follows: a dynamic mixing method driven by eccentric rotor offset load comprises the following steps: the tail end of the eccentric rotor is provided with the eccentric mixing ring with the flow channel, so that the eccentric rotor is driven to perform revolution motion in the process of simultaneously performing rotation and constant-speed reverse revolution around the center of the stator, and soft materials flowing through the flow channel on the eccentric mixing ring are further mixed.
In the process that the eccentric rotor drives the eccentric mixing ring to perform revolution motion, the eccentric rotor can be subjected to the extrusion action of materials in the processes of compacting and conveying the materials, the extrusion action in all directions is different, the eccentric load which cannot be completely balanced on the eccentric rotor is just supported and constrained by the eccentric mixing ring, and the constraint and balance of the eccentric load are realized.
The dynamic mixing device driven by the eccentric rotor unbalance loading comprises a stator, an eccentric rotor, a support ring and an eccentric mixing ring, wherein the eccentric rotor is arranged in the stator, the tail end of the eccentric rotor is provided with the eccentric mixing ring, the periphery of the eccentric mixing ring is connected with the stator through the support ring, and the support ring is fixed on the inner side of the stator. Wherein, the support ring mainly plays the supporting role to eccentric mixing ring, and its structure designs or adjusts according to the actual conditions of stator inner chamber structure and eccentric mixing ring outer peripheral structure can. The eccentric mixing ring performs revolution motion along with the revolution of the eccentric rotor, the effect of the eccentric mixing ring is to further mix soft materials passing through the eccentric rotor on one hand, and the effect of the eccentric mixing ring is to balance eccentric load on the eccentric rotor on the other hand so as to reduce extrusion vibration of the eccentric rotor.
The axis of the eccentric mixing ring is superposed with the axis of the eccentric rotor, and an eccentric distance exists between the axis of the eccentric rotor and the axis of the stator. The eccentric rotor is provided with a rotor eccentric spiral section and a rotor eccentric straight line section which are alternately connected, and the stator is correspondingly provided with a stator eccentric spiral section and a stator eccentric straight line section which are alternately connected. Because the eccentric distance exists between the axis of the eccentric rotor and the axis of the stator, a spiral cavity is formed between the eccentric spiral section of the rotor and the eccentric spiral section of the stator, and a linear cavity is formed between the eccentric straight line section of the rotor and the eccentric straight line section of the stator. The eccentric rotor revolves around the axis of the stator while rotating around the axis of the eccentric rotor, soft materials are pushed in a spiral manner in a sealed cavity formed between the stator and the eccentric rotor in a spiral cavity, and meanwhile, the processes of compaction, exhaust, melting, melt transportation, mixing and the like are realized in the pushing process; in the linear cavity, the soft material is pushed in the linear cavity in a linear mode. When the soft material is sent to the end of the eccentric rotor, the soft material is further mixed in the flow channel on the eccentric mixing ring due to the eccentric mixing ring, thereby improving the mixing effect.
The inner ring and the outer ring of the eccentric mixing ring both adopt tooth-shaped structures, the number of teeth on the tooth-shaped structure is 2-200, and the number of teeth on the tooth-shaped structure of the outer ring is more than the number of teeth on the tooth-shaped structure of the inner ring. The inner ring and the outer ring of the eccentric mixing ring are designed to be in a tooth-shaped structure, so that the friction between the eccentric mixing ring and the supporting ring and between the eccentric mixing ring and the eccentric rotor can be reduced, and the revolution resistance of the eccentric mixing ring is reduced.
Preferably, the number of teeth on the outer ring tooth profile structure is 26, and the number of teeth on the inner ring tooth profile structure is 21.
The tooth edge on the tooth-shaped structure is one of a linear type, an oblique line type or a spiral type.
A plurality of runners are distributed on the eccentric mixing ring, and the runners are distributed in parallel along the axial direction of the eccentric mixing ring.
The radial section of the flow channel is circular, oval or rectangular.
On the eccentric mixing ring, all the flow passages are distributed layer by layer along the circumferential edge of the eccentric mixing ring towards the center direction; when the flow channel has a plurality of layers, the diameter of the flow channel is reduced layer by layer along the circumferential edge to the central direction, and the diameters of the flow channels in the same layer are equal.
Compared with the prior art, the invention has the following beneficial effects:
the dynamic mixing method and the device driven by the eccentric rotor unbalance loading are improved on the basis of the existing eccentric rotor conveying device, and the eccentric mixing ring is arranged at the tail end of the eccentric rotor, so that on one hand, soft materials mixed by the eccentric rotor can be further mixed, and the mixing effect is improved; on the other hand, the eccentric load on the eccentric rotor can be balanced to reduce the extrusion vibration of the eccentric rotor, and the eccentric rotor is in a shaft-shaped structure with a larger length, so that the deformation of the eccentric rotor can be effectively avoided, and the operation of the eccentric rotor is more stable.
This utilize eccentric rotor unbalance loading driven developments mixing arrangement in through setting up the support ring, play the supporting role to eccentric rotor and eccentric mixing ring, need not to increase other bearing structure, but its simple structure, but quick replacement has and exempts from the maintenance and need not to add excellent characteristics such as emollient.
Drawings
FIG. 1 is a schematic diagram of a dynamic mixing device driven by eccentric rotor offset loading.
Fig. 2 is a cross-sectional view a-a of fig. 1.
Fig. 3 is a schematic diagram of the eccentric mixing ring of fig. 2.
FIG. 4 is a schematic view of the eccentric mixing ring in example 1.
FIG. 5 is a schematic view showing the structure of the eccentric mixing ring in example 2.
In the above figures, 1 is a stator, 2 is an eccentric rotor, 3 is a support ring, 4 is an eccentric mixing ring, 5 is a tooth structure, 6 is a flow channel, 7 is a tooth edge, and e is an eccentric distance between an axis of the eccentric rotor and an axis of the stator.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
The dynamic mixing device driven by the eccentric rotor in the embodiment comprises a stator, an eccentric rotor, a support ring and an eccentric mixing ring, wherein the eccentric rotor is arranged inside the stator, the eccentric mixing ring is arranged at the tail end of the eccentric rotor, the periphery of the eccentric mixing ring is connected with the stator through the support ring, and the support ring is fixed on the inner side of the stator, as shown in fig. 1 or fig. 2. Wherein, the support ring mainly plays the supporting role to eccentric mixing ring, and its structure designs or adjusts according to the actual conditions of stator inner chamber structure and eccentric mixing ring outer peripheral structure can. The eccentric mixing ring performs revolution motion along with the revolution of the eccentric rotor, the effect of the eccentric mixing ring is to further mix soft materials passing through the eccentric rotor on one hand, and the effect of the eccentric mixing ring is to balance eccentric load on the eccentric rotor on the other hand so as to reduce extrusion vibration of the eccentric rotor.
Wherein the axis of the eccentric mixing ring coincides with the axis of the eccentric rotor, and there is an eccentricity (e shown in fig. 1 or fig. 2) between the axis of the eccentric rotor and the axis of the stator. The eccentric rotor is provided with a rotor eccentric spiral section and a rotor eccentric straight line section which are alternately connected, and the stator is correspondingly provided with a stator eccentric spiral section and a stator eccentric straight line section which are alternately connected. Because the eccentric distance exists between the axis of the eccentric rotor and the axis of the stator, a spiral cavity is formed between the eccentric spiral section of the rotor and the eccentric spiral section of the stator, and a linear cavity is formed between the eccentric straight line section of the rotor and the eccentric straight line section of the stator. The eccentric rotor revolves around the axis of the stator while rotating around the axis of the eccentric rotor, soft materials are pushed in a spiral manner in a sealed cavity formed between the stator and the eccentric rotor in a spiral cavity, and meanwhile, the processes of compaction, exhaust, melting, melt transportation, mixing and the like are realized in the pushing process; in the linear cavity, the soft material is pushed in the linear cavity in a linear mode. When the soft material is sent to the end of the eccentric rotor, the soft material is further mixed in the flow channel on the eccentric mixing ring due to the eccentric mixing ring, thereby improving the mixing effect.
As shown in FIG. 3, the inner ring and the outer ring of the eccentric mixing ring both adopt a tooth-shaped structure, the number of teeth on the tooth-shaped structure can be 2-200, and the number of teeth on the tooth-shaped structure of the outer ring is more than that on the tooth-shaped structure of the inner ring.
The inner ring and the outer ring of the eccentric mixing ring are designed to be in a tooth-shaped structure, so that the friction between the eccentric mixing ring and the supporting ring and between the eccentric mixing ring and the eccentric rotor can be reduced, and the revolution resistance of the eccentric mixing ring is reduced.
In this embodiment, the number of teeth on the outer ring tooth profile structure is 26, and the number of teeth on the inner ring tooth profile structure is 21. As shown in fig. 4, the tips of the teeth are linear.
As shown in fig. 3 or fig. 4, a plurality of flow passages are distributed on the eccentric mixing ring, and each flow passage is distributed in parallel along the axial direction of the eccentric mixing ring. The radial section of the flow passage is circular. On the eccentric mixing ring, all the flow passages are distributed layer by layer along the circumferential edge of the eccentric mixing ring towards the center direction; in this embodiment, each flow channel is mainly distributed in the semi-ring structure with the larger width of the eccentric mixing ring, the flow channels are two layers, the diameter of each flow channel decreases layer by layer along the circumferential edge towards the center (that is, the diameter of the flow channel close to one side of the circumferential edge is larger than that of the flow channel close to the center), and the diameters of the flow channels in the same layer are equal.
The device can realize a dynamic mixing method driven by eccentric rotor unbalance loading, and specifically comprises the following steps: the tail end of the eccentric rotor is provided with the eccentric mixing ring with the flow channel, so that the eccentric rotor is driven to perform revolution motion in the process of simultaneously performing rotation and constant-speed reverse revolution around the center of the stator, and soft materials flowing through the flow channel on the eccentric mixing ring are further mixed. Meanwhile, in the process that the eccentric rotor drives the eccentric mixing ring to perform revolution motion, the eccentric rotor can be subjected to the extrusion action of materials in the processes of compacting and conveying the materials, the extrusion action in all directions is different, the eccentric rotor can be just supported and restrained by the eccentric mixing ring by the eccentric load which cannot be completely balanced, and the restraint and balance of the eccentric load are realized.
Example 2
Compared with the embodiment 1, the dynamic mixing device driven by eccentric rotor offset load of the embodiment is different in that: the eccentric mixing ring has different tips, and in this embodiment, as shown in fig. 5, the tips of the eccentric mixing ring have a diagonal shape. In addition, the tips of the eccentric mixing ring may also be helical or otherwise shaped, depending on the actual requirements of the dynamic mixing device.
Besides, the flow passage section on the eccentric mixing ring can be designed into a circle, an ellipse, a rectangle or other shapes.
As mentioned above, the present invention can be better realized, and the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes and modifications made according to the present disclosure are intended to be covered by the scope of the claims of the present invention.
Claims (10)
1. A dynamic mixing method by eccentric rotor offset load drive is characterized in that an eccentric mixing ring with a flow channel is arranged at the tail end of an eccentric rotor, so that the eccentric rotor is driven to perform revolution motion in the process of simultaneously rotating and revolving around the center of a stator in constant speed and reverse directions, and soft materials flowing through the flow channel on the eccentric mixing ring are further mixed.
2. The dynamic mixing method using eccentric rotor eccentric load driving according to claim 1, wherein during the process that the eccentric rotor drives the eccentric mixing ring to perform revolution motion, the eccentric load on the eccentric rotor, which cannot be completely balanced, is supported and constrained by the eccentric mixing ring, so as to achieve constraint and balance of the eccentric load.
3. A dynamic mixing device driven by eccentric rotor unbalance loading is characterized by comprising a stator, an eccentric rotor, a support ring and an eccentric mixing ring, wherein the eccentric rotor is arranged in the stator; a plurality of flow passages are distributed on the eccentric mixing ring.
4. A dynamic mixing apparatus driven by eccentric rotor offset load according to claim 3 wherein the axis of the eccentric mixing ring coincides with the axis of the eccentric rotor with an eccentricity between the axis of the eccentric rotor and the axis of the stator.
5. The dynamic mixing device driven by the eccentric rotor with the eccentric load according to claim 3, wherein the inner ring and the outer ring of the eccentric mixing ring both adopt a tooth profile structure, the number of teeth on the tooth profile structure is 2-200, and the number of teeth on the tooth profile structure of the outer ring is greater than that on the tooth profile structure of the inner ring.
6. The dynamic mixing device driven by eccentric rotor unbalance loading as claimed in claim 5, wherein the number of teeth on the outer ring tooth form structure is 26, and the number of teeth on the inner ring tooth form structure is 21.
7. The dynamic mixing apparatus driven by eccentric rotor offset load as claimed in claim 5, wherein the tooth tips on said tooth form structure are one of linear, helical or spiral.
8. A dynamic mixing apparatus driven by eccentric rotor offset load according to claim 3, wherein said flow passages are arranged in parallel along the axial direction of the eccentric mixing ring.
9. The dynamic mixing apparatus driven by eccentric rotor offset load according to claim 8, wherein the radial cross section of the flow passage is circular, elliptical or rectangular.
10. The dynamic mixing apparatus driven by eccentric rotor eccentric load according to claim 8, wherein the eccentric mixing ring has flow passages distributed layer by layer along the circumferential edge of the eccentric mixing ring toward the center; when the flow channel has a plurality of layers, the diameter of the flow channel is reduced layer by layer along the circumferential edge to the central direction, and the diameters of the flow channels in the same layer are equal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610846509.7A CN106426830B (en) | 2016-09-23 | 2016-09-23 | Dynamic mixing method and device driven by eccentric rotor unbalance loading |
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| CN201610846509.7A CN106426830B (en) | 2016-09-23 | 2016-09-23 | Dynamic mixing method and device driven by eccentric rotor unbalance loading |
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| CN106426830A CN106426830A (en) | 2017-02-22 |
| CN106426830B true CN106426830B (en) | 2020-02-18 |
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| CN107627568B (en) * | 2017-09-05 | 2023-07-11 | 华南理工大学 | Synchronous plasticizing metering injection molding method and equipment based on eccentric rotor |
| CN109719978B (en) * | 2018-12-27 | 2021-03-30 | 临海伟星新型建材有限公司 | Preparation method of brass/PPR composite pipe fitting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200170U (en) * | 1985-04-01 | 1985-10-10 | 中国科学院金属研究所 | Wear-resisting and shorck absorption pump with single screw |
| CN104002447A (en) * | 2014-05-15 | 2014-08-27 | 华南理工大学 | Eccentric rotor volume pulsation deformation plasticizing transport method and device |
| CN104919175A (en) * | 2012-12-19 | 2015-09-16 | 普拉德研究及开发股份有限公司 | Progressive cavity based control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150122549A1 (en) * | 2013-11-05 | 2015-05-07 | Baker Hughes Incorporated | Hydraulic tools, drilling systems including hydraulic tools, and methods of using hydraulic tools |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200170U (en) * | 1985-04-01 | 1985-10-10 | 中国科学院金属研究所 | Wear-resisting and shorck absorption pump with single screw |
| CN104919175A (en) * | 2012-12-19 | 2015-09-16 | 普拉德研究及开发股份有限公司 | Progressive cavity based control system |
| CN104002447A (en) * | 2014-05-15 | 2014-08-27 | 华南理工大学 | Eccentric rotor volume pulsation deformation plasticizing transport method and device |
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Address after: 510640 Tianhe District, Guangdong, No. five road, No. 381, Applicant after: South China University of Technology Applicant after: Guangzhou Huaxin Building Kezhi Technology Co. Ltd. Address before: 510640 Tianhe District, Guangdong, No. five road, No. 381, Applicant before: South China University of Technology Applicant before: Guangzhou Huaxinke Industrial Co., Ltd. |
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