CN108481590B - Stirring device - Google Patents

Stirring device Download PDF

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Publication number
CN108481590B
CN108481590B CN201810194626.9A CN201810194626A CN108481590B CN 108481590 B CN108481590 B CN 108481590B CN 201810194626 A CN201810194626 A CN 201810194626A CN 108481590 B CN108481590 B CN 108481590B
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China
Prior art keywords
shaft
stirring
screw shaft
cavity
mixing
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CN201810194626.9A
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Chinese (zh)
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CN108481590A (en
Inventor
不公告发明人
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Zhenshun (Nanjing) Industrial Equipment Co.,Ltd.
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Nanjing Lishui Hi Tech Venture Capital Management Co Ltd
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Publication of CN108481590A publication Critical patent/CN108481590A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
    • B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
    • B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
    • B29B7/16—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with paddles or arms
    • 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
    • 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
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
    • B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The invention relates to the technical field of plastic production equipment, and relates to a stirring device. The stirring shaft is connected with a stirring motor through a planetary gear; the planetary gear comprises a gear ring, a sun gear, a planetary gear and a planetary support, the gear ring is fixedly connected with the cylinder, the stirring motor is used for driving the sun gear, and the sun gear drives the planetary support through the planetary gear; the stirring shaft comprises a screw shaft and a sleeve shaft, the screw shaft and the sun gear are coaxially arranged at the sun gear, the sleeve shaft and the screw shaft are coaxially sleeved outside the screw shaft, and the sleeve shaft is connected with the planet support; the sleeve shaft side wall is provided with a guide long hole along the axial direction, the screw shaft is in threaded connection with a blade seat, the blade seat side wall is provided with a blade installation rod extending from the guide long hole, and the blade installation rod is provided with a blade. The invention can better mix and stir plastic production raw materials.

Description

Stirring device
The present application is a divisional application of a patent with the application number of 2016104054527, 2016, 06, 08 and entitled "stirring device for plastic production".
Technical Field
The invention relates to the technical field of plastic production equipment, in particular to a stirring device for plastic production.
Background
Plastics are high molecular compounds (macromolecules) polymerized by addition polymerization or polycondensation reaction, commonly called plastics (plastics) or resins (resins), which can freely change components and form patterns, and are generally composed of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, colorants, etc. When plastic is processed (granulated), a series of operations such as mixing, hot cutting, screening and the like are required after plastic preparation raw materials are mixed. Whether the mixing of plastics raw materials is abundant is very big to the good bad influence of the plastics quality of preparing, and the device that is used for plastics raw materials to mix now adopts single stirring mode basically, and this just makes when mixing the stirring to plastics raw materials, can have a large amount of stirring blind areas in the churn to make plastics raw materials can not be fine mix, and then can seriously influence the off-the-shelf quality of plastics prepared.
Disclosure of Invention
In order to overcome some or all of the disadvantages of the prior art, the invention provides a stirring device for plastic production.
The stirring device for plastic production comprises a barrel, wherein a stirring shaft is arranged in the barrel and is connected with a stirring motor through a planetary gear; the planetary gear comprises a gear ring, a sun gear, a planetary gear and a planetary support, the gear ring is fixedly connected with the cylinder, the stirring motor is used for driving the sun gear, and the sun gear drives the planetary support through the planetary gear;
the stirring shaft comprises a screw shaft and a sleeve shaft, the screw shaft and the sun gear are coaxially arranged at the sun gear, the sleeve shaft and the screw shaft are coaxially sleeved outside the screw shaft, and the sleeve shaft is connected with the planet support; the sleeve shaft side wall is provided with a guide long hole along the axial direction, the screw shaft is in threaded connection with a blade seat, the blade seat side wall is provided with a blade installation rod extending from the guide long hole, and the blade installation rod is provided with a blade.
In the stirring device for plastic production, the stirring motor can drive the stirring shaft through the planetary gear, and the stirring shaft can comprise the screw shaft driven by the sun gear and the sleeve shaft driven by the planetary support, so that when the stirring motor operates, a rotation speed difference exists between the screw shaft and the sleeve shaft; the paddle seat is in threaded fit with the screw shaft, and the paddle mounting rod arranged on the paddle seat penetrates through the guide long hole, so that the paddle seat can move up and down under the driving of the screw shaft, and the paddle seat can also perform circumferential rotary motion due to the rotation speed difference between the sleeve shaft and the screw shaft; based on above-mentioned structure for the paddle that is driven by the paddle seat can be with spiral orbit operation in the barrel, thereby makes plastic materials can obtain comparatively abundant stirring in the barrel.
Preferably, the screw shaft is connected to the central shaft of the sun gear by a coupling.
In the stirring device for plastic production, in order to realize the reciprocating operation of the blade seat, the stirring motor needs to rotate forwards and backwards alternately, when the operation direction of the stirring motor is switched, the blade can bear larger impact force of plastic raw materials in the cylinder, so that the stirring shaft can bear larger torque force, and the torque force can be better alleviated through the action of the planetary gear and the coupling, so that the stirring motor can be better protected.
Preferably, the stirring motor is a servo motor.
In the stirring device for plastic production, the stirring motor can adopt a servo motor, so that the parameters of the rotating speed, the steering direction and the like of the private clothes motor can be better controlled.
Preferably, the quill is provided with 2 guide long holes, the 2 guide long holes are uniformly distributed in the circumferential direction of the quill, and correspondingly, the blade seat is also correspondingly provided with 2 blade mounting rods.
In the stirring device for plastic production, the two sides of the paddle seat can be provided with the plurality of paddle installation rods in a central symmetry manner, and each paddle installation rod is provided with the paddle, so that plastic raw materials can be stirred in the barrel body more uniformly, and the forces from the paddle seat or the paddle installation rods on the stirring shaft can be balanced with each other, so that the abrasion of the stirring shaft can be better reduced, and the service life of the stirring shaft is effectively prolonged.
In the stirring device for plastic production, the inner surface of the cylinder body can be sintered with an anti-corrosion wear-resistant layer, and the stirring device comprises the following components in parts by weight: 20 parts of potassium silicate, 1 part of acrylic resin, 0.3 part of polyvinyl alcohol, 20 parts of potassium feldspar, 20 parts of zinc oxide, 2 parts of potassium hydroxide, 50 parts of distilled water, 0.3 part of stabilizer, 0.5 part of dispersant, 0.3 part of defoaming agent and 0.5 part of thickening agent, wherein the stabilizer, the dispersant, the defoaming agent and the thickening agent are all common additives, and after the formula is adopted for sintering, a smooth glaze layer can be formed on the inner surface of the cylinder, so that not only can the corrosion or abrasion of the plastic raw material to the cylinder be better prevented, but also the friction force between the plastic raw material and the inner surface of the cylinder can be better reduced, the plastic raw material can better flow in the cylinder, and the plastic raw material can be better stirred and mixed.
In the stirring device for plastic production, the bearing can be sleeved at the position, corresponding to the corresponding guide long hole, of the blade mounting rod, so that the blade mounting rod cannot be directly contacted with the side wall of the guide long hole when running in the guide long hole, the abrasion between the blade mounting rod and the guide long hole can be better reduced, and the blade mounting rod can be better reduced to run in the guide long hole.
In the stirring device for plastic production, the vacuumizing pore channel can be arranged above the cylinder, so that when the plastic raw material is stirred, the vacuumizing device can be used for vacuumizing the inner cavity of the cylinder, and gas dissolved in the plastic raw material can be discharged in the stirring process of the plastic raw material, so that the plastic raw material can be more compact, and the quality of a manufactured plastic finished product can be effectively improved.
In the stirring device for plastic production, the length-diameter ratio of the screw shaft can be 8: 1-10: 1, and the inner diameter of the sleeve shaft can be 3-4 times of the outer diameter of the screw shaft; the design is based on that the length-diameter ratio of the screw shaft is too small, so that the size of the whole stirring shaft is increased, the rotating moment at the blade seat is reduced, the energy consumption is improved, and the length-diameter ratio of the screw shaft is too large, so that the screw shaft is easy to break; the rotating torque at the blade seat is reduced due to the fact that the inner diameter of the sleeve shaft is too small, and the stirring effect is adversely affected due to the fact that the inner diameter of the sleeve shaft is too large.
In order to overcome some or all of the defects of the prior art, the invention also provides a three-dimensional stirring device for mixing the plastic raw materials.
The three-dimensional stirring device for mixing the plastic raw materials comprises a barrel, wherein a stirring shaft is arranged in the barrel and is connected with a stirring motor through a planetary gear; the planetary gear comprises a gear ring, a sun gear, a planetary gear and a planetary support, the gear ring is fixedly connected with the cylinder, the stirring motor is used for driving the sun gear, and the sun gear drives the planetary support through the planetary gear;
the stirring shaft comprises a screw shaft and a sleeve shaft, the screw shaft and the sun gear are coaxially arranged at the sun gear, the sleeve shaft and the screw shaft are coaxially sleeved outside the screw shaft, and the sleeve shaft is connected with the planet support;
the sleeve shaft side wall is provided with a guide long hole along the axial direction, the screw shaft is in threaded connection with a blade seat, the blade seat side wall is provided with a blade installation rod extending from the guide long hole, the blade installation rod is provided with a blade, and the blade is connected with the blade installation rod through a first bearing.
In the three-dimensional stirring device for mixing the plastic raw materials, the stirring motor can drive the stirring shaft through the planetary gear, and the stirring shaft can comprise the screw shaft driven by the sun gear and the sleeve shaft driven by the planetary support, so that when the stirring motor operates, a rotation speed difference exists between the screw shaft and the sleeve shaft; the paddle seat is in threaded fit with the screw shaft, and the paddle mounting rod arranged on the paddle seat penetrates through the guide long hole, so that the paddle seat can move up and down under the driving of the screw shaft, and the paddle seat can also perform circumferential rotary motion due to the rotation speed difference between the sleeve shaft and the screw shaft; based on above-mentioned structure for the paddle that is driven by the paddle seat can be with spiral orbit operation in the barrel, thereby makes plastic materials can obtain comparatively abundant stirring in the barrel.
In the three-dimensional stirring device for mixing the plastic raw materials, the paddle can be rotationally connected with the paddle mounting rod through the first bearing, so that the paddle can rotate while making an overall spiral motion under the driving of the paddle mounting rod, and the plastic raw materials can be further stirred and mixed more fully.
Preferably, the screw shaft is connected to the central shaft of the sun gear by a coupling.
In the three-dimensional stirring device for mixing the plastic raw materials, in order to realize the reciprocating operation of the blade seat, the stirring motor needs to rotate forwards and backwards alternately, when the operation direction of the stirring motor is switched, the blade can bear larger impact force of the plastic raw materials in the cylinder, so that the stirring shaft can bear larger torque force, and the torque force can be better alleviated through the action of the planetary gear and the coupling, so that the stirring motor can be better protected.
Preferably, the stirring motor is a servo motor.
In the three-dimensional stirring device for mixing the plastic raw materials, the stirring motor can adopt a servo motor, so that the rotating speed, the steering direction and other parameters of the motor for personal care can be better controlled.
Preferably, the quill is provided with 2 guide long holes, the 2 guide long holes are uniformly distributed in the circumferential direction of the quill, and correspondingly, the blade seat is also correspondingly provided with 2 blade mounting rods.
In the three-dimensional stirring device for mixing the plastic raw materials, the two sides of the paddle seat can be provided with the plurality of paddle installation rods in a central symmetry manner, and each paddle installation rod is provided with the paddle, so that the plastic raw materials can be stirred in the barrel body more uniformly, and the forces from the paddle seat or the paddle installation rods on the stirring shaft can be balanced with each other, so that the abrasion of the stirring shaft can be better reduced, and the service life of the stirring shaft is further effectively prolonged.
In the three-dimensional stirring device for mixing the plastic raw materials, the inner surface of the cylinder body can be sintered with an anti-corrosion wear-resistant layer, and the three-dimensional stirring device comprises the following components in parts by weight: 20 parts of potassium silicate, 1 part of acrylic resin, 0.3 part of polyvinyl alcohol, 20 parts of potassium feldspar, 20 parts of zinc oxide, 2 parts of potassium hydroxide, 50 parts of distilled water, 0.3 part of stabilizer, 0.5 part of dispersant, 0.3 part of defoaming agent and 0.5 part of thickening agent, wherein the stabilizer, the dispersant, the defoaming agent and the thickening agent are all common additives, and after the formula is adopted for sintering, a smooth glaze layer can be formed on the inner surface of the cylinder, so that not only can the corrosion or abrasion of the plastic raw material to the cylinder be better prevented, but also the friction force between the plastic raw material and the inner surface of the cylinder can be better reduced, the plastic raw material can better flow in the cylinder, and the plastic raw material can be better stirred and mixed.
In the three-dimensional stirring device for mixing the plastic raw materials, the blade mounting rod can be sleeved with the bearing corresponding to the corresponding guide long hole, so that the blade mounting rod cannot be directly contacted with the side wall of the guide long hole when running in the guide long hole, the abrasion between the blade mounting rod and the guide long hole can be better reduced, and the blade mounting rod can better run in the guide long hole.
In the three-dimensional stirring device for mixing the plastic raw materials, the vacuumizing pore channel can be arranged above the cylinder, so that a vacuumizing device can be adopted to vacuumize the inner cavity of the cylinder when the plastic raw materials are stirred, and gas dissolved in the plastic raw materials can be discharged in the stirring process of the plastic raw materials, so that the plastic raw materials can be more compact, and the quality of a manufactured plastic finished product can be effectively improved.
In the three-dimensional stirring device for mixing the plastic raw materials, the length-diameter ratio of the screw shaft can be 8: 1-10: 1, and the inner diameter of the sleeve shaft can be 3-4 times of the outer diameter of the screw shaft; the design is based on that the length-diameter ratio of the screw shaft is too small, so that the size of the whole stirring shaft is increased, the rotating moment at the blade seat is reduced, the energy consumption is improved, and the length-diameter ratio of the screw shaft is too large, so that the screw shaft is easy to break; the rotating torque at the blade seat is reduced due to the fact that the inner diameter of the sleeve shaft is too small, and the stirring effect is adversely affected due to the fact that the inner diameter of the sleeve shaft is too large.
To overcome some or all of the disadvantages of the prior art, the present invention also provides a raw material premixing device for use in a plastic production process.
The raw material premixing device for the plastic production process comprises a premixing device body arranged at a cylinder body, wherein the premixing device body comprises a mixing cylinder; a mixing cavity is arranged in the mixing cylinder, the mixing cavity comprises a feeding cavity and a feeding cavity, a plurality of feeding holes are formed in the feeding cavity, and the feeding cavity is communicated with the inner cavity of the cylinder body through the feeding cavity; a mixing rotating shaft is arranged in the mixing cavity and is driven by a mixing motor; the compounding pivot is equipped with stirring vane including the first compounding section that is located feed cavity department and the second compounding section that is located feed cavity department, first compounding section department, and second compounding section department is equipped with the helicla flute.
According to the raw material premixing device for the plastic production process, the premixing device body is arranged, so that plastic raw materials can be premixed through the premixing device body when entering the cylinder of the stirring device, the premixing device body can comprise the feeding cavity and the feeding cavity, the stirring blade can be arranged in the feeding cavity, and the spiral groove can be arranged in the feeding cavity, so that various plastic raw materials can be premixed for the first time under the action of the stirring blade when entering the feeding cavity, and then premixed for the second time under the action of the spiral groove, so that the plastic raw materials can be premixed better, the premixed plastic raw materials can be stirred and mixed in the cylinder better, and the plastic raw materials can be fully mixed.
Preferably, the feeding cavity and the feeding cavity are both cylindrical cavities, and the inner diameter of the feeding cavity is 2-3.5 times of that of the feeding cavity.
According to the raw material premixing device for the plastic production process, the feeding cavity and the feeding cavity can be both cylindrical cavities, so that the plastic raw materials can be premixed conveniently, the inner diameter of the feeding cavity can be 2-3.5 times of the inner diameter of the feeding cavity, the plastic raw materials can be mixed due to the spiral groove, the plastic raw materials can be pushed into the cylinder, and the mixing efficiency and the blanking efficiency can be balanced better by designing the inner diameter of the feeding cavity to be 2-3.5 times of the inner diameter of the feeding cavity.
Preferably, the mixing motor is a servo motor.
In the raw material premixing device for the plastic production process, the material mixing motor can adopt a servo motor, so that the operation parameters of the material mixing rotating shaft can be better controlled during premixing.
Preferably, the volume of the feeding cavity is 4-8 times of that of the feeding cavity.
In the raw material premixing device for the plastic production process, the volume of the feeding cavity can be 4-8 times of that of the feeding cavity, so that the mixing efficiency and the blanking efficiency can be well balanced.
In the raw material premixing device for the plastic production process, the premixing device bodies can be uniformly distributed in the circumferential direction of the upper end cover of the cylinder, so that the feeding speed of the cylinder can be multiplied, the materials at all the premixing device bodies can uniformly fall into the cylinder due to uniform distribution, and due to the difference of the mixing degree of the plastic raw materials at each premixing device body, a plurality of strands of premixed materials with different mixing degrees can be well mixed and stirred in the cylinder due to the uniform falling of the plastic raw materials into the cylinder.
In order to overcome some or all of the disadvantages of the prior art, the invention also provides a plastic raw material mixing device.
The plastic raw material mixing device comprises a barrel, wherein a stirring shaft is arranged in the barrel and is connected with a stirring motor through a planetary gear; the planetary gear comprises a gear ring, a sun gear, a planetary gear and a planetary support, the gear ring is fixedly connected with the cylinder, the stirring motor is used for driving the sun gear, and the sun gear drives the planetary support through the planetary gear;
the stirring shaft comprises a screw shaft and a sleeve shaft, the screw shaft and the sun gear are coaxially arranged at the sun gear, the sleeve shaft and the screw shaft are coaxially sleeved outside the screw shaft, and the sleeve shaft is connected with the planet support; the side wall of the sleeve shaft is axially provided with a guide long hole, the screw shaft is in threaded connection with a blade seat, the side wall of the blade seat is provided with a blade mounting rod extending out of the guide long hole, and a blade is arranged at the blade mounting rod;
the cylinder body is also provided with a premixing device body which comprises a mixing cylinder; a mixing cavity is arranged in the mixing cylinder, the mixing cavity comprises a feeding cavity and a feeding cavity, a plurality of feeding holes are formed in the feeding cavity, and the feeding cavity is communicated with the inner cavity of the cylinder body through the feeding cavity; a mixing rotating shaft is arranged in the mixing cavity and is driven by a mixing motor; the compounding pivot is equipped with stirring vane including the first compounding section that is located feed cavity department and the second compounding section that is located feed cavity department, first compounding section department, and second compounding section department is equipped with the helicla flute.
In the plastic raw material mixing device, the stirring motor can drive the stirring shaft through the planetary gear, and the stirring shaft can comprise the screw shaft driven by the sun gear and the sleeve shaft driven by the planetary support, so that when the stirring motor operates, a rotation speed difference exists between the screw shaft and the sleeve shaft; the paddle seat is in threaded fit with the screw shaft, and the paddle mounting rod arranged on the paddle seat penetrates through the guide long hole, so that the paddle seat can move up and down under the driving of the screw shaft, and the paddle seat can also perform circumferential rotary motion due to the rotation speed difference between the sleeve shaft and the screw shaft; based on above-mentioned structure for the paddle that is driven by the paddle seat can be with spiral orbit operation in the barrel, thereby makes plastic materials can obtain comparatively abundant stirring in the barrel.
According to the plastic raw material mixing device, the premixing device body is arranged, so that plastic raw materials can be premixed through the premixing device body when entering the cylinder of the stirring device, the premixing device body can comprise the feeding cavity and the feeding cavity, the stirring blade can be arranged in the feeding cavity, and the spiral groove can be arranged in the feeding cavity, so that various plastic raw materials can be premixed for the first time under the action of the stirring blade when entering the feeding cavity, and then premixed for the second time under the action of the spiral groove, so that the plastic raw materials can be premixed better, the premixed plastic raw materials can be stirred and mixed in the cylinder better, and the plastic raw materials can be fully mixed.
Preferably, the feeding cavity and the feeding cavity are both cylindrical cavities, and the inner diameter of the feeding cavity is 2-3.5 times of that of the feeding cavity.
In the plastic raw material mixing device, the feeding cavity and the feeding cavity can be both cylindrical cavities, so that the plastic raw materials can be premixed conveniently, the inner diameter of the feeding cavity can be 2-3.5 times of the inner diameter of the feeding cavity, the plastic raw materials can be mixed due to the spiral groove, the plastic raw materials can be pushed into the cylinder, and the mixing efficiency and the blanking efficiency can be balanced better by designing the inner diameter of the feeding cavity to be 2-3.5 of the inner diameter of the feeding cavity.
Preferably, the mixing motor is a servo motor.
In the plastic raw material mixing device, the material mixing motor can adopt a servo motor, so that the operation parameters of the material mixing rotating shaft can be better controlled during the pre-mixing.
Preferably, the volume of the feeding cavity is 4-8 times of that of the feeding cavity.
In the plastic raw material mixing device, the volume of the feeding cavity can be 4-8 times of that of the feeding cavity, so that the mixing efficiency and the blanking efficiency can be well balanced.
Preferably, the screw shaft is connected to the central shaft of the sun gear by a coupling.
In the plastic raw material mixing device, in order to realize the reciprocating operation of the blade seat, the stirring motor needs to rotate forwards and backwards alternately, when the operation direction of the stirring motor is switched, the blade can bear larger impact force of the plastic raw materials in the cylinder, so that the stirring shaft can bear larger torque force, and the torque force can be better alleviated through the action of the planetary gear and the coupling, so that the stirring motor can be better protected.
Preferably, the stirring motor is a servo motor.
In the plastic raw material mixing device, the stirring motor can adopt a servo motor, so that the rotating speed, the steering direction and other parameters of the private clothes motor can be better controlled.
Preferably, the quill is provided with 2 guide long holes, the 2 guide long holes are uniformly distributed in the circumferential direction of the quill, and correspondingly, the blade seat is also correspondingly provided with 2 blade mounting rods.
In the plastic raw material mixing device, the plurality of blade mounting rods can be arranged on the two sides of the blade seat in a centrosymmetric manner, and each blade mounting rod is provided with the blade, so that the plastic raw materials can be uniformly stirred in the barrel, and the forces from the blade seat or the blade mounting rods on the stirring shaft can be balanced with each other, so that the abrasion of the stirring shaft can be better reduced, and the service life of the stirring shaft is effectively prolonged.
In the plastic raw material mixing device, the inner surface of the cylinder body can be sintered with an anti-corrosion wear-resistant layer, and the anti-corrosion wear-resistant layer comprises the following components in parts by weight: 20 parts of potassium silicate, 1 part of acrylic resin, 0.3 part of polyvinyl alcohol, 20 parts of potassium feldspar, 20 parts of zinc oxide, 2 parts of potassium hydroxide, 50 parts of distilled water, 0.3 part of stabilizer, 0.5 part of dispersant, 0.3 part of defoaming agent and 0.5 part of thickening agent, wherein the stabilizer, the dispersant, the defoaming agent and the thickening agent are all common additives, and after the formula is adopted for sintering, a smooth glaze layer can be formed on the inner surface of the cylinder, so that not only can the corrosion or abrasion of the plastic raw material to the cylinder be better prevented, but also the friction force between the plastic raw material and the inner surface of the cylinder can be better reduced, the plastic raw material can better flow in the cylinder, and the plastic raw material can be better stirred and mixed.
In the plastic raw material mixing device, the bearing can be sleeved at the position, corresponding to the corresponding guide long hole, of the paddle installation rod, so that the paddle installation rod cannot be directly contacted with the side wall of the guide long hole when running in the guide long hole, abrasion between the paddle installation rod and the guide long hole can be better reduced, and the paddle installation rod can be better reduced to run in the guide long hole.
In the plastic raw material mixing device, the vacuumizing pore channel can be arranged above the cylinder, so that when the plastic raw materials are stirred, the vacuumizing device can be used for vacuumizing the inner cavity of the cylinder, and gas dissolved in the plastic raw materials can be discharged in the stirring process of the plastic raw materials, so that the plastic raw materials can be more compact, and the quality of a manufactured plastic finished product can be effectively improved.
In the plastic raw material mixing device, the length-diameter ratio of the screw shaft can be 8: 1-10: 1, and the inner diameter of the sleeve shaft can be 3-4 times of the outer diameter of the screw shaft; the design is based on that the length-diameter ratio of the screw shaft is too small, so that the size of the whole stirring shaft is increased, the rotating moment at the blade seat is reduced, the energy consumption is improved, and the length-diameter ratio of the screw shaft is too large, so that the screw shaft is easy to break; the rotating torque at the blade seat is reduced due to the fact that the inner diameter of the sleeve shaft is too small, and the stirring effect is adversely affected due to the fact that the inner diameter of the sleeve shaft is too large.
In the plastic raw material mixing device, the plurality of premixing device bodies can be uniformly distributed on the circumference of the upper end cover of the cylinder body, so that the feeding rate of the cylinder body can be increased by times, the materials at all the premixing device bodies can uniformly fall into the cylinder body due to uniform distribution, and due to the difference of the mixing degree of the plastic raw materials at each premixing device body, a plurality of strands of premixed materials with different mixing degrees can be well mixed and stirred in the cylinder body due to uniform falling of the plastic raw materials into the cylinder body.
In order to overcome some or all of the defects in the prior art, the invention also provides a raw material mixing device in the plastic production process.
The raw material mixing device in the plastic production process comprises a barrel, wherein a stirring shaft is arranged in the barrel and is connected with a stirring motor through a planetary gear; the planetary gear comprises a gear ring, a sun gear, a planetary gear and a planetary support, the gear ring is fixedly connected with the cylinder, the stirring motor is used for driving the sun gear, and the sun gear drives the planetary support through the planetary gear;
the stirring shaft comprises a screw shaft and a sleeve shaft, the screw shaft and the sun gear are coaxially arranged at the sun gear, the sleeve shaft and the screw shaft are coaxially sleeved outside the screw shaft, and the sleeve shaft is connected with the planet support;
the side wall of the sleeve shaft is axially provided with a guide long hole, the screw shaft is in threaded connection with a blade seat, the side wall of the blade seat is provided with a blade mounting rod extending out of the guide long hole, a blade is arranged at the blade mounting rod, and the blade is connected with the blade mounting rod through a first bearing;
the cylinder body is also provided with a premixing device body which comprises a mixing cylinder; a mixing cavity is arranged in the mixing cylinder, the mixing cavity comprises a feeding cavity and a feeding cavity, a plurality of feeding holes are formed in the feeding cavity, and the feeding cavity is communicated with the inner cavity of the cylinder body through the feeding cavity; a mixing rotating shaft is arranged in the mixing cavity and is driven by a mixing motor; the compounding pivot is equipped with stirring vane including the first compounding section that is located feed cavity department and the second compounding section that is located feed cavity department, first compounding section department, and second compounding section department is equipped with the helicla flute.
In the raw material mixing device in the plastic production process, the stirring motor can drive the stirring shaft through the planetary gear, and the stirring shaft can comprise the screw shaft driven by the sun gear and the sleeve shaft driven by the planetary support, so that when the stirring motor operates, a rotation speed difference exists between the screw shaft and the sleeve shaft; the paddle seat is in threaded fit with the screw shaft, and the paddle mounting rod arranged on the paddle seat penetrates through the guide long hole, so that the paddle seat can move up and down under the driving of the screw shaft, and the paddle seat can also perform circumferential rotary motion due to the rotation speed difference between the sleeve shaft and the screw shaft; based on above-mentioned structure for the paddle that is driven by the paddle seat can be with spiral orbit operation in the barrel, thereby makes plastic materials can obtain comparatively abundant stirring in the barrel.
In the raw material mixing device in the plastic production process, the paddle can be rotationally connected with the paddle mounting rod through the first bearing, so that the paddle can rotate while making an integral spiral motion under the driving of the paddle mounting rod, and plastic raw materials can be further stirred and mixed sufficiently.
According to the raw material mixing device in the plastic production process, the premixing device body is arranged, so that plastic raw materials can be premixed through the premixing device body when entering the cylinder of the stirring device, the premixing device body can comprise the feeding cavity and the feeding cavity, the stirring blade can be arranged in the feeding cavity, and the spiral groove can be arranged in the feeding cavity, so that various plastic raw materials can be premixed for the first time under the action of the stirring blade when entering the feeding cavity, and then premixed for the second time under the action of the spiral groove, so that the plastic raw materials can be premixed better, the premixed plastic raw materials can be stirred and mixed in the cylinder better, and the plastic raw materials can be fully mixed.
Preferably, the feeding cavity and the feeding cavity are both cylindrical cavities, and the inner diameter of the feeding cavity is 2-3.5 times of that of the feeding cavity.
In the raw material mixing device in the plastic production process, the feeding cavity and the feeding cavity can be both cylindrical cavities, so that the plastic raw materials can be premixed conveniently, the inner diameter of the feeding cavity can be 2-3.5 times of the inner diameter of the feeding cavity, the plastic raw materials can be mixed and can be pushed into the cylinder body due to the spiral groove, and the mixing efficiency and the blanking efficiency can be balanced better by designing the inner diameter of the feeding cavity to be 2-3.5 of the inner diameter of the feeding cavity.
Preferably, the mixing motor is a servo motor.
In the raw material mixing device in the plastic production process, the material mixing motor can adopt a servo motor, so that the operation parameters of the material mixing rotating shaft can be better controlled during the pre-mixing.
Preferably, the volume of the feeding cavity is 4-8 times of that of the feeding cavity.
In the raw material mixing device in the plastic production process, the volume of the feeding cavity can be 4-8 times of that of the feeding cavity, so that the mixing efficiency and the blanking efficiency can be well balanced.
Preferably, the screw shaft is connected to the central shaft of the sun gear by a coupling.
In the raw material mixing device in the plastic production process, in order to realize the reciprocating operation of the blade seat, the stirring motor needs to rotate forwards and backwards alternately, when the operation direction of the stirring motor is switched, the blade can bear larger impact force of the plastic raw material in the cylinder, so that the stirring shaft can bear larger torque force, and the torque force can be better alleviated through the action of the planetary gear and the coupling, so that the stirring motor can be better protected.
Preferably, the stirring motor is a servo motor.
In the raw material mixing device in the plastic production process, the stirring motor can adopt a servo motor, so that the rotating speed, the steering direction and other parameters of the private clothes motor can be better controlled.
Preferably, the quill is provided with 2 guide long holes, the 2 guide long holes are uniformly distributed in the circumferential direction of the quill, and correspondingly, the blade seat is also correspondingly provided with 2 blade mounting rods.
In the raw material mixing device in the plastic production process, the plurality of blade mounting rods can be arranged on the two sides of the blade seat in a centrosymmetric manner, and each blade mounting rod is provided with the blade, so that plastic raw materials can be uniformly stirred in the barrel, and the forces from the blade seat or the blade mounting rods on the stirring shaft can be balanced with each other, so that the abrasion of the stirring shaft can be better reduced, and the service life of the stirring shaft is effectively prolonged.
In the raw material mixing device in the plastic production process, the inner surface of the cylinder body can be sintered with a layer of anti-corrosion wear-resistant layer, and the anti-corrosion wear-resistant layer comprises the following components in parts by weight: 20 parts of potassium silicate, 1 part of acrylic resin, 0.3 part of polyvinyl alcohol, 20 parts of potassium feldspar, 20 parts of zinc oxide, 2 parts of potassium hydroxide, 50 parts of distilled water, 0.3 part of stabilizer, 0.5 part of dispersant, 0.3 part of defoaming agent and 0.5 part of thickening agent, wherein the stabilizer, the dispersant, the defoaming agent and the thickening agent are all common additives, and after the formula is adopted for sintering, a smooth glaze layer can be formed on the inner surface of the cylinder, so that not only can the corrosion or abrasion of the plastic raw material to the cylinder be better prevented, but also the friction force between the plastic raw material and the inner surface of the cylinder can be better reduced, the plastic raw material can better flow in the cylinder, and the plastic raw material can be better stirred and mixed.
In the raw material mixing device in the plastic production process, the bearing can be sleeved at the position, corresponding to the corresponding guide long hole, of the paddle installation rod, so that the paddle installation rod cannot be directly contacted with the side wall of the guide long hole when running in the guide long hole, the abrasion between the paddle installation rod and the guide long hole can be better reduced, and the paddle installation rod can better run in the guide long hole.
In the raw material mixing device in the plastic production process, the vacuumizing pore channel can be arranged above the cylinder, so that the vacuumizing device can be used for vacuumizing the inner cavity of the cylinder when the plastic raw materials are stirred, and gas dissolved in the plastic raw materials can be discharged in the stirring process of the plastic raw materials, so that the plastic raw materials can be more compact, and the quality of a manufactured plastic finished product can be effectively improved.
In the raw material mixing device in the plastic production process, the length-diameter ratio of the screw shaft can be 8: 1-10: 1, and the inner diameter of the sleeve shaft can be 3-4 times of the outer diameter of the screw shaft; the design is based on that the length-diameter ratio of the screw shaft is too small, so that the size of the whole stirring shaft is increased, the rotating moment at the blade seat is reduced, the energy consumption is improved, and the length-diameter ratio of the screw shaft is too large, so that the screw shaft is easy to break; the rotating torque at the blade seat is reduced due to the fact that the inner diameter of the sleeve shaft is too small, and the stirring effect is adversely affected due to the fact that the inner diameter of the sleeve shaft is too large.
In the raw material mixing device in the plastic production process, the premixing device bodies can be uniformly distributed in the circumferential direction of the upper end cover of the cylinder, so that the feeding speed of the cylinder can be multiplied, the materials at all the premixing device bodies can uniformly fall into the cylinder due to uniform distribution, and due to the difference of the mixing degree of the plastic raw materials at each premixing device body, a plurality of strands of premixed materials with different mixing degrees can be well mixed and stirred in the cylinder due to the uniform falling of the plastic raw materials into the cylinder.
Drawings
FIG. 1 is a schematic view of a stirring apparatus for plastic production in example 1;
FIG. 2 is a schematic view of the combination of the stirring shaft, the blade mount, the blade mounting rod and the blades in example 1;
FIG. 3 is a schematic view of a quill in embodiment 1;
FIG. 4 is a schematic view of the position of the premixing device body at the barrel in embodiment 1;
FIG. 5 is a schematic view of a premixing device body in embodiment 1.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.
Example 1
This embodiment provides an agitating unit, its can be preferred carry out multistage mixture to plastics raw materials for production to make plastics raw materials for production can be by comparatively abundant mixture.
As shown in fig. 1, the stirring apparatus of the present embodiment includes a barrel 110, a stirring shaft 120 is disposed in the barrel 110, and the stirring shaft 120 is connected to a stirring motor 140 through a planetary gear 130; the planetary gear 130 comprises a gear ring 131, a sun gear 132, a planet gear 133 and a planet carrier 134, the gear ring 131 is fixedly connected with the barrel 110, the stirring motor 140 is used for driving the sun gear 132, and the sun gear 132 drives the planet carrier 134 through the planet gear 133.
As shown in fig. 2 and 3, the stirring shaft 120 includes a screw shaft 121 and a sleeve shaft 122, the screw shaft 121 is disposed at the sun gear 132 coaxially with the sun gear 132, the sleeve shaft 122 is disposed outside the screw shaft 121 coaxially with the screw shaft 121, and the sleeve shaft 122 is connected with the planet carrier 134; the side wall of the sleeve shaft 122 is provided with a guide long hole 210 along the axial direction, the screw shaft 121 is in threaded connection with the blade base 150, the side wall of the blade base 150 is provided with a blade mounting rod 160 extending out of the guide long hole 210, the blade mounting rod 160 is provided with a blade 170, and the blade 170 is connected with the blade mounting rod 160 through a first bearing 220. .
In this embodiment, the screw shaft 121 is connected to the central shaft of the sun gear 132 through a coupling 1213, and the stirring motor 140 is a servo motor; sleeve shaft 122 department is equipped with 2 and leads slot hole 210, and this 2 and lead slot hole 210 evenly distributed on sleeve shaft 122's circumference, and correspondingly, paddle seat 150 department also corresponds is equipped with 2 paddle installation poles 160.
In this embodiment, the inner surface of the cylinder 110 can be sintered with an anti-corrosion wear-resistant layer, which includes the following components in parts by weight: 20 parts of potassium silicate, 1 part of acrylic resin, 0.3 part of polyvinyl alcohol, 20 parts of potassium feldspar, 20 parts of zinc oxide, 2 parts of potassium hydroxide, 50 parts of distilled water, 0.3 part of stabilizer, 0.5 part of dispersant, 0.3 part of defoamer and 0.5 part of thickener, wherein the stabilizer, the dispersant, the defoamer and the thickener are all common additives.
In this embodiment, the blade mounting rod 160 is sleeved with a bearing corresponding to the corresponding guide slot 210, and a vacuum-pumping duct is further provided above the cylinder 110.
In addition, the length-diameter ratio of the screw shaft 121 can be 8:1 to 10:1, the inner diameter of the sleeve shaft 122 can be 3 to 4 times the outer diameter of the screw shaft 121, in the embodiment, the length-diameter ratio of the screw shaft 121 is 9:1, and the inner diameter of the sleeve shaft 122 is 3.5 times the outer diameter of the screw shaft 121.
In this embodiment, a premixing device body 180 is further disposed at the upper end cover of the cylinder 110, and plastic production raw materials enter the cylinder 110 from the premixing device body 180.
As shown in fig. 4, the premixing device body 180 in the present embodiment has 4 in total and is uniformly distributed in the circumferential direction of the upper end cap of the cartridge 110.
As shown in fig. 5, the premixing device body 180 includes a mixing barrel 510, a mixing cavity is provided in the mixing barrel 510, and the mixing cavity includes a feeding cavity 511 and a feeding cavity 512; a plurality of feed inlets 5110 are arranged at the feed cavity 511, and the feed cavity 511 is communicated with the inner cavity of the barrel 110 through the feed cavity 512; a mixing rotating shaft 520 is arranged in the mixing cavity, and the mixing rotating shaft 520 is driven by a mixing motor 530; the mixing rotating shaft 520 comprises a first mixing section 521 positioned at the feeding cavity 511 and a second mixing section 522 positioned at the feeding cavity 512, wherein the first mixing section 521 is provided with a stirring blade 540, and the second mixing section 522 is provided with a spiral groove 550.
In this embodiment, the feeding cavity 511 and the feeding cavity 512 are both cylindrical cavities, and the material mixing motor 530 is a servo motor.
In addition, the inner diameter of the feeding cavity 511 can be 2-3.5 times of the inner diameter of the feeding cavity 512, and the volume of the feeding cavity 511 can be 4-8 times of the volume of the feeding cavity 512; in this embodiment, the inner diameter of the feeding cavity 511 is 3 times of the inner diameter of the feeding cavity 512, and the volume of the feeding cavity 511 is 8 times of the volume of the feeding cavity 512.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims (7)

1. An agitation apparatus, comprising:
the stirring shaft is arranged in the cylinder and is connected with a stirring motor through a planetary gear; the planetary gear comprises a gear ring, a sun gear, a planetary gear and a planetary support, the gear ring is fixedly connected with the cylinder, the stirring motor is used for driving the sun gear, and the sun gear drives the planetary support through the planetary gear;
the stirring shaft comprises a screw shaft and a sleeve shaft, the screw shaft and the sun gear are coaxially arranged at the sun gear, the sleeve shaft and the screw shaft are coaxially sleeved outside the screw shaft, and the sleeve shaft is connected with the planet support; the side wall of the sleeve shaft is axially provided with a guide long hole, the screw shaft is in threaded connection with a blade seat, and the side wall of the blade seat is provided with a blade;
the side wall of the paddle seat is provided with a paddle mounting rod extending out of the self-guiding long hole, and the paddle is mounted at the paddle mounting rod; 2 guide long holes are formed in the sleeve shaft, the 2 guide long holes are uniformly distributed in the circumferential direction of the sleeve shaft, and correspondingly, 2 blade mounting rods are correspondingly arranged at the blade seat;
the stirring device also comprises a premixing device body, wherein the premixing device body comprises a mixing cylinder, a mixing cavity is arranged in the mixing cylinder, and the mixing cavity comprises a feeding cavity and a feeding cavity; a plurality of feed inlets are formed in the feed cavity, and the feed cavity is communicated with the inner cavity of the barrel through the feed cavity; a material mixing rotating shaft is arranged in the material mixing cavity and is driven by a material mixing motor; the compounding pivot is including being located the first compounding section of feeding chamber department and being located the second compounding section of feeding chamber department, first compounding section department is equipped with stirring vane, second compounding section department is equipped with the helicla flute.
2. A mixing apparatus according to claim 1, wherein: the inner surface of the cylinder body is sintered with an anti-corrosion wear-resistant layer, and the anti-corrosion wear-resistant layer comprises the following components in parts by weight: 20 parts of potassium silicate, 1 part of acrylic resin, 0.3 part of polyvinyl alcohol, 20 parts of potassium feldspar, 20 parts of zinc oxide, 2 parts of potassium hydroxide, 50 parts of distilled water, 0.3 part of stabilizer, 0.5 part of dispersant, 0.3 part of defoaming agent and 0.5 part of thickening agent.
3. A mixing apparatus according to claim 1, wherein: the paddle mounting rod is sleeved with a bearing corresponding to the corresponding guide long hole, and a vacuumizing pore channel is further arranged above the cylinder body.
4. A mixing apparatus according to claim 1, wherein: the length-diameter ratio of the screw shaft is 8: 1-10: 1, and the inner diameter of the sleeve shaft is 3-4 times of the outer diameter of the screw shaft; the length-diameter ratio of the screw shaft is 9:1, and the inner diameter of the sleeve shaft is 3.5 times of the outer diameter of the screw shaft.
5. A mixing apparatus according to claim 1, wherein: the total number of the premixing device bodies is 4, the premixing device bodies are uniformly distributed on the circumferential direction of the upper end cover of the cylinder body, and production raw materials enter the cylinder body from the premixing device bodies.
6. A mixing apparatus according to claim 1, wherein: the feeding cavity with the pay-off chamber is the cylinder chamber, the compounding motor adopts servo motor, feeding cavity internal diameter is 2 ~ 3.5 times of pay-off cavity internal diameter, feeding cavity volume is 4 ~ 8 times of pay-off cavity volume.
7. A mixing apparatus according to claim 1, wherein: the inner diameter of the feeding cavity is 3 times of that of the feeding cavity, and the volume of the feeding cavity is 8 times of that of the feeding cavity.
CN201810194626.9A 2016-06-08 2016-06-08 Stirring device Active CN108481590B (en)

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CN108582554A (en) * 2018-05-21 2018-09-28 肇庆益晟商贸有限公司 A kind of dispensing mixing arrangement of inorganic polymer water-base resin
CN109109187B (en) * 2018-08-01 2020-11-13 芜湖市崇兴乐塑胶有限公司 A raw material mixing device for plastics product processing
CN108945852A (en) * 2018-09-06 2018-12-07 黔东南民生食品有限公司 Lower hopper
CN110327869B (en) * 2019-08-09 2020-07-03 肇庆市力宇机械制造有限公司 Reaction kettle for foaming

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