CN102120345A - Blocky rubber continuous mixing method and device - Google Patents
Blocky rubber continuous mixing method and device Download PDFInfo
- Publication number
- CN102120345A CN102120345A CN2011100262123A CN201110026212A CN102120345A CN 102120345 A CN102120345 A CN 102120345A CN 2011100262123 A CN2011100262123 A CN 2011100262123A CN 201110026212 A CN201110026212 A CN 201110026212A CN 102120345 A CN102120345 A CN 102120345A
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- Prior art keywords
- mixing
- plasticating
- compounding ingredient
- rubber
- niggerhead
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000013329 compounding Methods 0.000 claims abstract description 121
- 239000007787 solid Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 239000004615 ingredient Substances 0.000 claims description 118
- 239000000463 material Substances 0.000 claims description 92
- 241001122126 Carex secta Species 0.000 claims description 71
- 238000004513 sizing Methods 0.000 claims description 65
- 238000003860 storage Methods 0.000 claims description 38
- 238000004898 kneading Methods 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 18
- 239000006229 carbon black Substances 0.000 claims description 11
- 238000007600 charging Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
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Images
Classifications
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- B29B7/465—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft each shaft comprising rotor parts of the Banbury type in addition to screw parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/39—Plasticisers, homogenisers or feeders comprising two or more stages a first extruder feeding the melt into an intermediate location of a second extruder
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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
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- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/402—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders the screws having intermeshing parts
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
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- B29C48/505—Screws
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
Abstract
The invention discloses a blocky rubber continuous mixing method and device. A crude rubber conveying device is used for feeding a blocky rubber raw material into a rubber continuous plastifying device and conveying a solid compounding agent and an extruded plastifying rubber sheet into the rubber continuous mixing device; a rubber feeding controlling device and a compounding agent feeding controlling device are connected with an equipment control system; and the blocky rubber raw material is directly put into the blocky rubber continuous plastifying device to be continuously plastified without prophase treatment, plastified rubber is mixed through the rubber continuous mixing device, and continuous production of continuous feeding, discharging, continuous plastifying and continuous mixing is realized. The blocky rubber continuous mixing device has the advantages of less quantity of auxiliary devices, little investment of production devices, low energy consumption, high efficiency, and high mixing quality because stable device parameters and process conditions can be realized due to strong controllability.
Description
Technical field
The invention belongs to the processing method and the equipment thereof of rubber processing former, is a kind of method and apparatus that is suitable for the niggerhead continuous mixing concretely.
Background technology
China is rubber production, consumption big country.Realize that high efficiency, low power consuming, large-scale production high-quality rubber are the major issues that China needs to be resolved hurrily present stage.At present, the mixing facilities that China generally uses is banbury and mill, owing to be intermittent operation all, have following defective: (1), the strong shear action of rotor are converted into the heat energy of sizing material, needs complicated cooling system; (2), batch production, need constantly parking, discharging, charging, production efficiency is low, in order to remedy this defective, the volume and the space outerpace of banbury are increasing, equipment is huge, floor space is also big; (3), Batch Process causes the difference of each position temperature, refining glue time, pressure etc., easily form the difference of quality, thereby influence stablizing of end product quality; (4), because there is leakage point in running position such as rotor end-face, powders such as carbon black fly upward easily, cause serious environmental pollution, influence health of operators.These defectives have caused the backwardness of processing method and have restricted the development of rubber production serialization, automation and high efficiency.For this reason, relevant both at home and abroad researcher sight has been invested have efficient low-consume, convenient, the rubber continuous mixing technology that multiple superperformance such as can produce continuously.Continuous mixer has a lot of advantages with respect to batch (-type) is mixing: (1) does not need to carry out periodically reinforced and discharging, makes full use of the mixing ability of mixing roll, can carry out serialization production, improves the production capacity of unit board, enhances productivity; (2) can be under stable device parameter and process conditions glue stuff compounding, effectively utilize and adjust and control device, so that technical process is undertaken by optimum level; (3) automaticity improves, and has reduced labour intensity; (4) consuming little energy, technical process and steady quality; (5) can economize the auxiliary equipment of decorrelation, save floor occupying area, reduce investment of production equipment.There are a lot of countries also to design at present and produced various continuous mixing equipments.But retrained by the viscoplasticity of rubber itself and the complex conditions of multiple sizing material blend, the rubber continuous mixer mostly rests on the stage based on powdery or granular feedstock, its common drawback is that the sizing material that adds must have flowability, be that sizing material must be Powdered or granular, the process of controlling the small powder adding simultaneously is very complicated, the auxiliary equipment that requires is more, and production cost is higher.And in modern industry was produced, the robber materials that the rubber mixing process is adopted remained block structure.Therefore, the continuous mixing technology of the niggerhead of on-granulated does not truly also realize.Along with the development of automatic technology and the requirement of low energy consumption of low pollution, the continuous mixing equipment and the continuous mixing method of low energy consumption automatically must be the developing direction of rubber.
Chinese invention patent Granted publication CN 100500413 " weigh feeder and mixing extrusion equipment " discloses a kind of mixing extrusion equipment with pulverizer, extruder, gear pump, additive weigh feeder, continuous mixing extruder.Bag bundle shape or block rubber raw materials at first need to drop into pulverizer fine pulverizing becoming coarse grain shape and could drop into extruder, the raw material that the extruder pressurization is extruded is via gear pump,, force to extrude continuously with mixing extruder to the mixing extruder weight feed with higher precision from the raw material of gear pump output.Though this invention can realize bag bundle shape or block rubber raw materials are carried out continuous mixing, but bag bundle shape or block rubber raw materials need pulverizer pulverization process premenstruum (premenstrua), extruder pressurization, gear pump to carry, and operation is many, auxiliary equipment is numerous and diverse, investment of production equipment is big, energy consumption is high.During actual production, the coordination of belt conveyor, pulverizer, extruder and gear pump running, cooperate extremely difficultly,, just can not realize continuous mixing if can not stablize, continuous to mixing extruder accurate quantification, continuous feeding.
Summary of the invention
The present invention will solve existing continuous mixing extrusion equipment and have the block technical problem that the mixing pretreatment procedure of rubber raw materials is many, auxiliary equipment is numerous and diverse, investment of production equipment is big, energy consumption is high, provide a kind of need not that the rubber raw materials of bulk is carried out the processing in early stage, directly drop into plasticator and plasticate continuously, through mixing roll continuously, efficient and the niggerhead continuous mixing method that high-quality is mixing and the equipment of use thereof.
In order to solve the problems of the technologies described above, the technical scheme that the present invention takes is: a kind of niggerhead continuous mixing method, and its working procedure is as follows:
(1) with the niggerhead raw material through the rubber conveying device feeding niggerhead device of plasticating continuously, after plasticating continuously, slabbing is extruded;
(2) the niggerhead broken-down rubber film that device is extruded of plasticating continuously is through the reinforced control device control of the sizing material of connection device control system, in the input rubber continuous mixing device;
(3) the solid compounding ingredient is imported in the rubber continuous mixing device by the screw feeder of gas delivery system and connection device control system respectively;
(4) measuring pump of the connection device control system of refueling device adds oil plant in the rubber continuous mixing device, the proportioning of apparatus control system control oil plant and sizing material and solid compounding ingredient;
(5) the reinforced control device of sizing material is measured the weight of the broken-down rubber film that adds the continuous mixing device, will be through the broken-down rubber film transport after measuring to rubber continuous mixing device, and metrical information is sent to apparatus control system, in order to adjust the addition of solid compounding ingredient and oil plant;
(6) will according to strict proportioning be transported to the mixing even back of material in the rubber continuous mixing device continuous extrude elastomeric compound.
Screw feeder comprises the reinforced screw feeder of the reinforced control device of compounding ingredient and the storage screw feeder of compounding ingredient storage device; Storing screw feeder is transported to gas delivery system in the carbon black of carbon black compounding ingredient storage device and white carbon compounding ingredient storage device and the reinforced hopper of compounding ingredient that white carbon is sent into the reinforced control device of corresponding compounding ingredient, other solid compounding ingredient that gas delivery system is transported in other compounding ingredient storage device is sent into respectively in the compounding ingredient mixed stirring device, entered after other solid compounding ingredient mixes in the reinforced hopper of corresponding compounding ingredient; Reinforced screw feeder is input to the solid compounding ingredient in the reinforced hopper of compounding ingredient respectively in the rubber continuous mixing device according to quantity.The reinforced control device of sizing material is the sizing material belt conveyer scale of connection device control system.
In order to guarantee the realization of said method, the present invention adopts a kind of niggerhead continuous mixing equipment, this equipment comprises kneading device, the niggerhead that the rubber conveying device is a steep-lead thread with the two-spool feeding section of plasticating of the niggerhead raw material feeding device of plasticating continuously, niggerhead is plasticated broken-down rubber film that device extrudes continuously through the reinforced control device input of sizing material rubber continuous mixing device, the solid compounding ingredient through the reinforced control device of compounding ingredient with the broken-down rubber film by same mixing spout input rubber continuous mixing device; Reinforced control device of sizing material and the reinforced control device connection device control system of compounding ingredient.
The plasticate feeding section of niggerhead by the steep-lead thread of the rotor of plasticating enters the niggerhead device of plasticating continuously smoothly.Niggerhead is plasticated sizing material in the device continuously through the over-mastication section, extrudes with the sheet broken-down rubber from the extruding zone of plasticating, for the continuous mixing of niggerhead provides stable, continuous and high-quality broken-down rubber.Add sizing material and solid compounding ingredient by reinforced control device of sizing material and the reinforced control device of compounding ingredient to rubber continuous mixing device, carry out continuously, efficient and high-quality is mixing, the broken-down rubber of apparatus control system control input rubber continuous mixing device and the weight of solid compounding ingredient have guaranteed the proportioning unanimity.Niggerhead raw material of the present invention need not to carry out to handle early stage, directly drops into the niggerhead device of plasticating continuously and plasticates continuously, and broken-down rubber is mixing through rubber continuous mixing device, has realized continuous charging, discharging.Its auxiliary equipment is few, investment of production equipment is little, energy consumption is low and efficient is high, mixing quality height.
Rubber conveying device connection device control system.Apparatus control system control rubber conveying device is reinforced to the niggerhead device of plasticating continuously.
The reinforced control device of sizing material is the sizing material belt conveyer scale, and the sizing material belt conveyer scale is measured the weight of the broken-down rubber that adds rubber continuous mixing device, and metrical information is sent to apparatus control system.Apparatus control system is controlled the weight that adds the solid compounding ingredient according to the broken-down rubber weight that adds rubber continuous mixing device by the reinforced control device of compounding ingredient, has guaranteed the proportioning unanimity.
The reinforced control device of compounding ingredient comprises reinforced hopper of compounding ingredient and reinforced screw feeder, the power motor connection device control system of reinforced screw feeder.Apparatus control system is by the power motor of reinforced screw feeder, the screw rod revolution of the reinforced screw feeder of control, and then solid compounding ingredients such as control carbon black, white carbon, age resistor, plasticizer and promoter have guaranteed the proportioning unanimity by the quantity of each reinforced screw feeder adding rubber continuous mixing device.
The charging aperture of the reinforced hopper of compounding ingredient is communicated with the compounding ingredient storage device, and the compounding ingredient storage device comprises the compounding ingredient storage hopper and store screw feeder that the compounding ingredient storage hopper connects gas delivery system.Various compounding ingredients by the Dense Phase Pneumatic Conveying system through separately conveyance conduit input compounding ingredient storage hopper separately.The transfer efficiency height, pipe wear is little, and energy consumption is low, and fed distance is long, quantity is big, pollutes light.
Rubber continuous mixing device connects refueling device; The measuring pump connection device control system of refueling device.Measuring pump is used for refueling to rubber continuous mixing device.Apparatus control system is according to the broken-down rubber weight that adds rubber continuous mixing device, and the volume read-out of control measuring pump has guaranteed that sizing material, compounding ingredient are consistent with the proportioning of oil.
The charging aperture of the reinforced control device of compounding ingredient connects the compounding ingredient mixed stirring device, and at least two kinds of compounding ingredients evenly mix in the compounding ingredient mixed stirring device.Multiple mixed uniformly solid compounding ingredient adds rubber continuous mixing device by the reinforced control device of compounding ingredient.
The compounding ingredient mixed stirring device is communicated with the compounding ingredient storage device.
Niggerhead the plasticating of device of plasticating continuously installs that a pair of incorgruous screw thread, parallel, incorgruous rotation, rotating speed equate, the rotor of plasticating of threaded portion engagement in the machine barrel, along plasticate successively on the sizing material direction of advance is plasticated rotor feeding section, the section of plasticating, the extruding zone of plasticating; The feeding section of plasticating is the steep-lead thread element; The section of plasticating is divided the screwing element of plasticating, screw thread fluting screwing element and barrel pins screwing element; The rotor rear end of plasticating connects the power drive system of plasticating, and the spout of plasticating on the machine barrel of plasticating is communicated with the rubber conveying device.
Plasticate birotor and the plasticate more single screw rod of volume between the machine barrel and the volume of plasticating between the machine barrel is big, the output of plasticating height, and conveying capacity is strong, has strengthened the flowability of sizing material, avoids sizing material to stagnate.The rotor of plasticating of parallel, incorgruous rotation and threaded portion engagement produces strong shearing, peptizaiton to sizing material, and plasticates evenly.Incorgruous rotation screw thread is stronger than homodromal helicitic texture conveying capacity, and the pressure of generation is bigger, can make plasticate more abundant, more even.The screw thread of big helical pitch of feeding section of plasticating has guaranteed entering smoothly of niggerhead.In the section of plasticating of three parts, sizing material is sheared distortion, converges, stirs, promotes, pulls, and becomes uniform broken-down rubber.The niggerhead device of plasticating is continuously plasticated continuously to niggerhead, and can extrude with the sheet broken-down rubber, for the continuous mixing device of niggerhead provides stable, continuous and high-quality broken-down rubber.
The feeding section of plasticating of rotor of plasticating be pitch from after the one start screw that reduces forward; Plasticate the spiral ridge of a long spiral ridge and two weak points is arranged on the screwing element; Screw thread fluting screwing element be pitch by after the double thread that reduces forward, have screw channel on the spiral shell rib perpendicular to screw thread; The barrel pins screwing element is the uniform pitch double thread, has the ring-shaped groove perpendicular to rotor axis on it, is inserted with the pin that is fixed on the machine barrel of plasticating in the ring-shaped groove; The extruding zone of plasticating is a double thread, is divided into two parts, the latter part of thread pitch that connects the section of plasticating by after reduce forward, the thread pitch of a preceding part is equal.Plasticate feeding section pitch from after reduce forward, screw thread carry and the compacting sizing material in the effect also having played broken glue and plasticated.Plasticate the spiral ridge of a long spiral ridge of screwing element and two weak points when rotating, engaging-in successively another root of the screwing element fin of plasticating of the rotor of plasticating is plasticated between the rib of the screwing element of plasticating of rotor, the fin diameter is different with the peripheral speed of fin root rotation, produce speed ratio and velocity gradient, sizing material is plasticated between the screwing element by two and the screwing element and when plasticating between the machine barrel of plasticating, be subjected to the strong shearing and the squeezing action of carrying out repeatedly of constantly variation, produce detrusion, the elasticity of sizing material is reduced, plasticity increases, and flowability improves.The pitch of screw thread fluting screwing element by after reduce forward, the part sizing material flows to the adjacent thread groove from screw channel punishment, sizing material is repeatedly cut apart, converges, is sheared and stir by the spiral shell rib in the process of plasticating, and the quality of plasticating is even, has also increased the time of staying of sizing material simultaneously.Be fixed on pin on the machine barrel of plasticating and stretch into the ring-shaped groove of uniform pitch barrel pins screwing element, when sizing material is transported to barrel pins screwing element district, because pin is to the mobile effect of playing promotion, towing and circumferentially stirring of sizing material, eliminate the dead band of downbeam and cross-wind direction in the ring-shaped groove effectively, make the sizing material of original maintenance laminar condition do lateral flow, shunting motion and stream motion, accelerated sizing material the flowing of downbeam between screw thread, conveying capacity is bigger, has improved the quality of plasticating of sizing material widely.Plasticate extruding zone latter part of thread pitch by after reduce forward, play compacting and conveying, the thread pitch of a preceding part equates, the extruding zone that guarantees to plasticate is smooth and easy, stably broken-down rubber is extruded, and obtains the measured broken-down rubber of matter.
The thread depth of feeding section, the section of plasticating, the extruding zone of plasticating of plasticating equates that the screw thread parent is cylindric; It is conical that the head of rotor of plasticating is.Front end is the good fluidity that the conical rotor of plasticating makes sizing material, guarantees to extrude stay-in-grade film.
The screwing element of the feeding section of plasticating, the section of plasticating of rotor, the extruding zone of plasticating of plasticating is dismountable successively to be installed on the mandrel of the rotor of plasticating; Plasticate screwing element, screw thread fluting screwing element and barrel pins screwing element can change at the epitrochanterian distributing order of plasticating.This cordwood compound mode is convenient to manufacturing, installation, maintenance and replacing parts.Change the distributing order of the screwing element of plasticating, screw thread fluting screwing element and the barrel pins screwing element of the section of plasticating, can adapt to different material, technology and product requirements.
The screwing element of plasticating of the section of plasticating, screw thread fluting screwing element and barrel pins screwing element are arranged in order in the direction of advance of rotor upper edge sizing material.This distributing order effect of plasticating is best.
The feeding section screw thread of plasticating is a triangle thread.The triangle thread root is thick, has improved the mechanical strength and the rigidity of the feeding section of plasticating, and is good to broken glue, conveying, compacting and the plastication of niggerhead.
The anti-glue groove of plasticating on the rotor of plasticating of feeding section back of plasticating.The anti-glue groove of plasticating prevents that sizing material from overflowing from the rotor rear of plasticating.
The a pair of incorgruous screw thread of the interior installation of the mixing machine barrel of rubber continuous mixing device, parallel, incorgruous rotation, rotating speed equate, the mixing rotor of threaded portion engagement, and mixing feeding section, kneading section, mixing section, mixing extruding zone are arranged on the mixing rotor; Mixing feeding section is the steep-lead thread structure; The kneading section adopts the toothed disc structure; Mixing section is formed by three sections, and the mixing section I is the shearing rotor mixing elements, and the mixing section II is the meshing rotor mixing elements, and the mixing section III is big helical pitch rotor mixing elements; Mixing rotor rear end connects mixing power drive system, and the mixing spout on the mixing machine barrel is communicated with reinforced control device of sizing material and the reinforced control device of compounding ingredient.
The second half section of mixing machine barrel is communicated with refueling device.
The mixing space of the more single screw-rod structure in mixing space between mixing birotor and the mixing machine barrel is big, mixing output height.Mixing birotor conveying capacity is strong, has strengthened the flowability of material, avoids material to stagnate.The mixing rotor elements parallel, that direction of rotation opposite and threaded portion meshes, strong, mixing evenly to material shearing and peptizaiton, the opposite mixing birotor of direction of rotation makes than homodromal birotor that material fluidity is better, conveying capacity is stronger, pressure is bigger, and the mixing rotor of a pair of incorgruous screw thread makes mixing more abundant, more even.The steep-lead thread structure of mixing feeding section has guaranteed that material enters smoothly.The kneading section mainly plays the shunting immixture.In the three-stage mixing section, material is pushed, shears, pushes, disperses, stirs and mixes, and is fully mixing.Rubber continuous mixing device can carry out continuous, efficient and high-quality mixing, uses with the niggerhead matched with devices of plasticating continuously, realizes the continuous mixing of niggerhead.
Mixing feeding section is an one start screw, pitch by after reduce forward; Two mixing epitrochanterian toothed disc end faces of kneading section are relative, leave the gap; One end of mixing section I has the different left-handed lug, nib of two segment length, and the other end has the different dextrorotation lug, nib of two segment length; The mixing section II has the spiral lug, nib of two weak points, and a long spiral lug, nib is arranged between the spiral lug, nib of two weak points; Two spiral shell ribs are arranged on the mixing section III, the spiral shell rib by screw thread rotation direction difference, helical angle is different two sections be threaded and form; Mixing extruding zone is a double thread, its latter part of pitch by after reduce forward, preceding a part of pitch equates.Pitch by after the mixing feeding section that reduces forward at the effect of carrying, also playing broken glue and further improving the sizing material plasticizing effect in the compacting material, the part air of bringing into when the compacting of material mainly plays the discharge charging.Be divided into some strands when the toothed disc of material by a mixing rotor kneading section, the material flow back of coming out is cut off by the toothed disc of the mixing rotor kneading of another root section.When the mixing rotor elements of shearing-type rotates, because two mixing epitrochanterian lug, nibs working diameter when cooperating is in different size, formed velocity gradient, cause that material is in bigger the flowing of circumferencial direction, make material be subjected to bigger thrust, propulsive thrust, shearing and squeezing action from lug, nib, material between mixing rotor, be subjected to collapsing and axially come and go, effects such as cutting, stirring.Between the rib of engaging-in successively another engagement type element of the lug, nib of a meshing rotor mixing elements, the lug, nib external diameter is different with the linear velocity of lug, nib root rotation, and material is in strong kneading, shearing and the squeezing action of carrying out repeatedly that are subjected between the meshing rotor mixing elements and between mixing rotor and the mixing machine tube inner wall constantly changing.The forward screw thread of big helical pitch rotor mixing elements spiral shell rib pushes away material forward, and reverse thread is to the pusher material, and material produces mixing, stretching and the shearing of vertical and horizontal under the effect of both forward and reverse directions power, constantly be extruded, shear, disperse and mix.Mixing extruding zone is smooth and easy, stably elastomeric compound is extruded, and the back part of mixing extruding zone mainly plays compacting and conveying, and a preceding part plays and guarantees to extrude stable, obtains the effect than the good quality elastomeric compound.
The thread depth of mixing feeding section, mixing section I, mixing section II, mixing section III and mixing extruding zone equates that the screw thread parent is cylindric; It is conical that the head of mixing rotor is; Have mixing anti-glue groove on the rotor of mixing feeding section back.Front end is the good fluidity that conical mixing rotor makes elastomeric compound, guarantees to extrude steady quality.Mixing anti-glue groove prevents that sizing material from overflowing from mixing rotor rear.
The screwing element of the mixing feeding section of mixing rotor, kneading section, mixing section I, mixing section II, mixing section III and mixing extruding zone is dismountable to be installed on the mandrel of rotor, and kneading section, mixing section I, mixing section II and mixing section III can change at mixing epitrochanterian distributing order.This cordwood compound mode is convenient to make, installation, maintenance.Change distributing order and can adapt to different material, technology and product requirements.
Mixing rotor upper edge sizing material direction of advance arrange successively mixing feeding section, mixing section I, kneading section, mixing transportation section I, mixing section II, mixing transportation section II, mixing section III and mixing extruding zone.This distributing order melting effect is best.
Mixing transportation section I and mixing transportation section II are double threads, pitch by after reduce forward, have mixing transportation section I screw channel and mixing transportation section II screw channel on both spiral shell ribs perpendicular to screw thread.The pitch of mixing transportation section I and mixing transportation section II by after diminish forward, in convey materials, also have compaction; The mixing transportation section I of spiral shell rib fluting and mixing transportation section II make and produce the material exchange between the adjacent thread groove, some material diversion is in adjacent thread groove, constantly cut apart, mixed, refluxed, mixing quality is even, main shear action occurs near the barrel wall place, heat-transfer effect is good, and material heats up little, stable operation.
Mixing feeding section screw thread is a triangle thread.The triangle thread root is thick, has improved the mechanical strength and the rigidity of mixing feeding section.
Advantage of the present invention is that the niggerhead raw material need not to carry out to handle early stage, directly dropping into the niggerhead device of plasticating continuously plasticates continuously, broken-down rubber is through rubber continuous mixing device continuous mixing, realized continuous charging, discharging, plasticated and the serialization production of continuous mixing continuously.The auxiliary equipment of niggerhead continuous mixing equipment is few, investment of production equipment is little, energy consumption is low, and the efficient height because controllability is strong, can be realized stable device parameter and process conditions, therefore mixing quality height.
Description of drawings
Fig. 1 is the system diagram of an embodiment of niggerhead continuous mixing of the present invention;
Fig. 2 is the niggerhead of Fig. 1 embodiment schematic representation of apparatus of plasticating continuously;
Fig. 3 is plasticate the continuously structural representation of the rotor of plasticating of device of Fig. 2 niggerhead;
Fig. 4 is the rubber continuous mixing schematic representation of apparatus of Fig. 1 embodiment;
Fig. 5 is the structural representation of the mixing rotor of Fig. 4 rubber continuous mixing device.
The specific embodiment
Accompanying drawings.
In niggerhead continuous mixing embodiment of the present invention shown in Figure 1, rubber conveying device 1 with niggerhead through plasticate the continuously feeding section 216 of plasticating of the rotor 21 of plasticating of device 20 of the spout 221 feeding niggerheads of plasticating, referring to Fig. 2 and Fig. 3.The niggerhead 20 pairs of niggerhead raw materials of device of plasticating are continuously plasticated continuously, extrude the broken-down rubber film.The broken-down rubber film is through the reinforced control device input of sizing material rubber continuous mixing device 30.The measuring pump of refueling device 11 is used for refueling to rubber continuous mixing device 30, and the second half section of mixing machine barrel 33 is communicated with refueling device 11.The solid compounding ingredient is imported rubber continuous mixing devices 30 through reinforced control device of compounding ingredient and broken-down rubber film by same mixing spout 331.Rubber conveying device 1, the reinforced control device of sizing material, the reinforced control device of compounding ingredient and measuring pump connection device control system.The reinforced control device of sizing material is a sizing material belt conveyer scale 13, and the reinforced control device of compounding ingredient is formed the power motor connection device control system of reinforced screw feeder 15 by reinforced hopper 7 of compounding ingredient and reinforced screw feeder 15.Sizing material belt conveyer scale 13 is measured the weight of the broken-down rubber that adds rubber continuous mixing device 30, and metrical information is sent to apparatus control system, apparatus control system is according to the broken-down rubber weight that adds, power motor by reinforced screw feeder 15, the screw rod revolution of the reinforced screw feeder 15 of control, and then control carbon black, white carbon, age resistor, solid such as plasticizer and promoter compounding ingredient is added the quantity delivered of rubber continuous mixing devices 30 by the screw feeder 15 that feeds in raw material separately, the volume read-out of apparatus control system control measuring pump has guaranteed sizing material, compounding ingredient is consistent with the proportioning of oil.Solid compounding ingredients such as carbon black, white carbon, age resistor, plasticizer and small powder only are shown among Fig. 1.The charging aperture of the reinforced hopper 7 of the compounding ingredient of two carbon blacks connects carbon black compounding ingredient storage device 2 separately respectively among Fig. 1, the charging aperture of the reinforced hopper 7 of the compounding ingredient of white carbon connects white carbon compounding ingredient storage device 3, the power motor connection device control system of the storage screw feeder 16 of compounding ingredient storage device.The number signal of the compounding ingredient therebetween that reinforced hopper 7 inner sensors of compounding ingredient obtain is delivered to apparatus control system, and apparatus control system control stores screw feeder 16 adds T/A from the delivery mixture to the reinforced hopper 7 of compounding ingredient.Age resistor compounding ingredient storage device 4, plasticizer compounding ingredient storage device 5 and the storage screw feeder 16 of small powder compounding ingredient storage device 6 are connected compounding ingredient mixed stirring device 9.Compounding ingredient mixed stirring device 9 connects the reinforced hopper 7 of compounding ingredient of the reinforced control device of same compounding ingredient, the number signal of mixing compounding ingredient therebetween that reinforced hopper 7 inner sensors of this compounding ingredient also will obtain is delivered to apparatus control system, the storage screw feeder 16 of apparatus control system control age resistor, plasticizer and small powder compounding ingredient storage device starts, add and send age resistor, plasticizer and small powder by setting the charging aperture of quantitative proportion, realize evenly mixing in proportion to compounding ingredient mixed stirring device 9.The compounding ingredient storage hopper of compounding ingredient storage device connects gas delivery system 8, various compounding ingredients by the Dense Phase Pneumatic Conveying system through separately conveyance conduit input compounding ingredient storage hopper separately, transfer efficiency height, pipe wear is little, energy consumption is low, and fed distance is long, quantity is big, pollutes light.
Through the rubber conveying device 1 feeding niggerhead device 20 of plasticating continuously, after plasticating continuously, slabbing is extruded with the niggerhead raw material; The broken-down rubber film that the device 20 of plasticating is continuously extruded is imported rubber continuous mixing device 30, sizing material belt conveyer scale 13 connection device control systems behind sizing material belt conveyer scale 13 check weighings; Carbon black and white carbon compounding ingredient leave in respectively in storage device 2 and 3, by gas delivery system 8, store screw feeder 16, send in the reinforced hopper 7 of compounding ingredient, send into rubber continuous mixing device 30 by reinforced screw feeder 15, age resistor compounding ingredient storage device 4, plasticizer compounding ingredient storage device 5 and small powder compounding ingredient storage device 6 enter compounding ingredient mixed stirring device 9 through storing screw feeder 16 earlier, in mixed stirring device 9, mix the back by reinforced screw feeder 15 input rubber continuous mixing devices 30, the compounding ingredient control device connection device control system of feeding in raw material; The reinforced control device of sizing material is measured the weight of the film of plasticating that adds continuous mixing device 30, to be transported to rubber continuous mixing device 30 through the sheet sizing material after measuring, and metrical information is sent to apparatus control system, in order to adjust the addition of solid compounding ingredient and oil; Refueling device 11 adds oil plant in the rubber continuous mixing device 30 by measuring pump, and the measuring pump connection device control system of refueling device 11 is in order to the proportioning of control and sizing material and solid compounding ingredient; Will according to strict proportioning be transported to the mixing even back of material in the rubber continuous mixing device 30 continuous extrude elastomeric compound.
Fig. 2 is plasticate the continuously schematic diagram of device 20 of the niggerhead of Fig. 1 embodiment.The machine barrel 22 of plasticating surrounds that a pair of incorgruous screw thread, parallel, incorgruous rotation, rotating speed equate, the rotor 21 of plasticating of threaded portion engagement, plasticate motor 233 by the decelerator 232 of plasticating with transmission of power to the distributor 231 of plasticating, rotor 21 rear ends of plasticating connect the output shaft of the distributor 231 of plasticating, and the motor 233 of plasticating of the power drive system of plasticating, plasticate decelerator 232 and the distributor 231 of plasticating are fixed on the frame 24 of plasticating.The fixedly connected head 25 of plasticating of machine barrel 22 front ends of plasticating, fixedly connected with distributor 231 housings of plasticating in the rear end, and the front portion of the machine barrel 22 of plasticating and middle part are by the machine barrel stent support that is fixed on the frame 24 of plasticating.Rubber conveying device 1 is communicated with the spout 221 of plasticating on the machine barrel 22 of plasticating, referring to Fig. 1 above the machine barrel 22 of plasticating.Plasticating has the cooling water channel of plasticating that connects the cooling system of plasticating on the machine barrel 22, and the cooling water channel of plasticating does not draw among the figure.Apparatus control system connects the plasticate cooling system and the power drive system of plasticating.Under apparatus control system control, rubber conveying device 1 can add the spout 221 of plasticating with the niggerhead continuous and quantitative, and the sheet broken-down rubber is extruded from the continuous plasticating equipment 20 of niggerhead.The niggerhead device 20 of plasticating continuously can be plasticated continuously to niggerhead, and can extrude with the sheet broken-down rubber, for niggerhead continuous mixing device 30 provides stable, continuous and high-quality broken-down rubber.
Fig. 3 niggerhead plasticate continuously device 20 plasticate rotor 21 from after forward the feeding section 216 of plasticating, the rotor elements 215 of plasticating, screw thread fluting screwing element 214, barrel pins screwing element 213 and extruding zone 212 element housings of plasticating be contained on the mandrel of plasticating of the rotor 21 of plasticating, cordwood compound mode is convenient to make, installation, maintenance.The plasticate head 211 of rotor of taper shape is fixedly mounted on the mandrel front end of plasticating, and has the anti-glue groove 217 of plasticating that prevents that sizing material from overflowing on the mandrel of plasticating of feeding section 216 back of plasticating.The feeding section 216 of plasticating be pitch by after the big helical pitch single head triangle thread element that reduces gradually forward.Plasticate the spiral ridge of a long spiral ridge and two weak points is arranged on the screwing element 215; Screw thread fluting screwing element 214 be pitch by after the double thread that reduces gradually forward, have screw channel 2141 on the spiral shell rib perpendicular to screw thread; Barrel pins screwing element 213 is double threads of uniform pitch, has the ring-shaped groove 2131 perpendicular to the rotor axis of plasticating on it, is inserted with the radially pin that is fixed on the machine barrel 22 of plasticating in the ring-shaped groove 2131.The extruding zone 212 of plasticating is double thread elements, the latter part of thread pitch that connects machine barrel pin thread element 213 by after reduce gradually forward, the thread pitch of a preceding part equates.The thread depth of feeding section 216, the screwing element 215 of plasticating, screw thread fluting screwing element 214, barrel pins screwing element 213 and the extruding zone 212 of plasticating of plasticating equates that the screw thread parent is cylindric.Plasticate the continuously rotor 21 of plasticating of device 20 of niggerhead can adapt to niggerhead and plasticates continuously, and can extrude with the sheet broken-down rubber, for niggerhead continuous mixing device 30 provides stable, continuous and high-quality broken-down rubber.
The machine barrel 22 of plasticating is sectionally assembled syndetons, each section is sealedly and fixedly connected successively and forms the whole machine barrel 22 of plasticating together, plasticate machine barrel 22 by the feed zone machine barrel of plasticating, plasticate and screw thread fluting machine barrel, pin barrel and extruding zone machine barrel are formed for four sections, referring to Fig. 2.Fixing the radially pin that stretches in the tube on the barrel of pin barrel.Four sections machine barrels of plasticating are corresponding with the feeding section 216 of plasticating of the rotor 21 of plasticating, plasticate screwing element 215 and screw thread fluting screwing element 214, barrel pins screwing element 213, the extruding zone 212 of plasticating substantially.Machine barrel 22 segmentations of plasticating combination is convenient to make, installs, changes and is safeguarded.On the every section machine barrel of plasticating the cooling water channel of plasticating that has plasticate the cooling water channel inlet and the cooling water channel outlet of plasticating is arranged, cooling water enters the cooling water channel of plasticating from the cooling water channel inlet of plasticating, the cooling water channel outlet is flowed out from plasticating, the machine barrel 22 of plasticating is cooled off the cooling water channel inlet and the cooling water channel outlet of plasticating of plasticating of not drawing among Fig. 2.Dividing equally on the multi stage mastication machine barrel of present embodiment adopts vertically is two split type structure, split type structure is convenient to the plasticate machine barrel 22 and the rotor 21 of plasticating are cleaned and safeguard, convenient split the machine barrel 22 of plasticating observe each section plasticate state with plasticate degree, for research, improving equipment provides foundation, and the split type structure of segmentation machine barrel is not shown among Fig. 2.
Fig. 4 is the schematic diagram of the rubber continuous mixing device 30 of Fig. 1 embodiment.Mixing machine barrel 33 surrounds that a pair of incorgruous screw thread, parallel, incorgruous rotation, rotating speed equate, the threaded portion engagement, mixing rotor 32, mixing motor 343 by mixing decelerator 342 with transmission of power to the distributor 341 of plasticating, mixing rotor 32 rear ends connect the output shaft of mixing distributor 341, and the mixing motor 343 of mixing power drive system, mixing decelerator 342 and mixing distributor 341 are fixed on the mixing frame 35.The fixedly connected mixing head 36 of mixing machine barrel 33 front ends, fixedly connected with mixing distributor 341 housings in the rear end, and the front portion of mixing machine barrel 33 and middle part are supported by the mixing roll tube stent that is fixed on the mixing frame 35.Mixing spout 331 on the mixing machine barrel 33 is communicated with sizing material belt conveyer scale 13, the reinforced screw feeder 15 of the reinforced control device of compounding ingredient and the measuring pump of refueling device 11.The mixing cooling water channel that connects mixing cooling system is arranged on the mixing machine barrel 33, and mixing cooling water channel does not draw among the figure.Apparatus control system connects mixing cooling system, mixing power drive system.It is continuous, efficient and high-quality mixing that rubber continuous mixing device 30 can carry out rubber, with the niggerhead device 20 supporting uses of plasticating continuously, can realize the niggerhead continuous mixing.
The mixing rotor 32 of Fig. 5 rubber continuous mixing device 30 from after forward mixing feeding section 329, mixing section I 328, kneading section 327, mixing transportation section I 326, mixing section II 325, mixing transportation section II 324, mixing section III 323 and mixing extruding zone 322 element housings be contained on the mixing mandrel of mixing rotor 32, cordwood compound mode is convenient to make, installation, maintenance.The head 321 of conical mixing rotor is fixedly mounted on mixing mandrel front end, has the mixing anti-glue groove 320 that prevents that sizing material from overflowing on the mandrel of mixing feeding section 329 back.Mixing feeding section 329 be pitch by after the big helical pitch single head triangle thread structure that reduces gradually forward.Mixing section I 328 is shearing rotor mixing elementses, and front end has the different left-handed lug, nib of two segment length, and there is the different dextrorotation lug, nib of two segment length the rear end.Kneading section 327 adopts the toothed disc structure, and the toothed disc end face on two mixing rotors 32 of kneading section 327 is relative, leaves the gap.Mixing section II 325 is meshing rotor mixing elementses, and a long spiral lug, nib is arranged between the spiral lug, nib of two weak points.Mixing section III 323 is big helical pitch rotor mixing elementses, and two spiral shell ribs are arranged on it, the spiral shell rib by the direction of rotation difference, helical angle is different two sections be threaded and form.Mixing extruding zone 322 is double threads, latter part of pitch by after reduce gradually forward, preceding a part of pitch equates.Mixing transportation section I 326 and mixing transportation section II 324 are double threads, pitch by after reduce gradually forward, have mixing transportation section I screw channel 3261 and mixing transportation section II screw channel 3241 on both spiral shell ribs perpendicular to screw thread.The thread depth of mixing feeding section 329, mixing section I 328, mixing section II 325, mixing section III 323, mixing transportation section I 326, mixing transportation section II 324 and mixing extruding zone 322 equates that the screw thread parent is cylindric.The structure of mixing rotor 32 can realize that rubber is continuous, efficient, high-quality is mixing.
Claims (12)
1. niggerhead continuous mixing method, its working procedure is as follows:
(1) with the niggerhead raw material through rubber conveying device (1) the feeding niggerhead device (20) of plasticating continuously, after plasticating continuously, slabbing is extruded;
(2) the niggerhead broken-down rubber film that device (20) is extruded of plasticating continuously is through the reinforced control device control of the sizing material of connection device control system, in the input rubber continuous mixing device (30);
(3) the solid compounding ingredient is imported in the rubber continuous mixing device (30) by the screw feeder of gas delivery system (8) and connection device control system respectively;
(4) measuring pump of the connection device control system of refueling device (11) adds oil plant in the rubber continuous mixing device (30), the proportioning of apparatus control system control oil plant and sizing material and solid compounding ingredient;
(5) the reinforced control device of sizing material is measured the weight of the broken-down rubber film that adds continuous mixing device (30), will be through the broken-down rubber film transport after measuring to rubber continuous mixing device (30), and metrical information is sent to apparatus control system, in order to adjust the addition of solid compounding ingredient and oil plant;
(6) will according to strict proportioning be transported to the mixing even back of material in the rubber continuous mixing device (30) continuous extrude elastomeric compound.
2. a kind of niggerhead continuous mixing method according to claim 1 is characterized in that screw feeder comprises the reinforced screw feeder (15) of the reinforced control device of compounding ingredient and the storage screw feeder (16) of compounding ingredient storage device; Storing screw feeder (16) is transported to the carbon black of carbon black compounding ingredient storage device (2) and white carbon compounding ingredient storage device (3) and compounding ingredient that white carbon is sent into the reinforced control device of corresponding compounding ingredient with gas delivery system (8) and feeds in raw material in the hopper (7), other solid compounding ingredient that gas delivery system (8) is transported in other compounding ingredient storage device is sent into respectively in the compounding ingredient mixed stirring device (9), entered after other solid compounding ingredient mixes in the reinforced hopper (7) of corresponding compounding ingredient; Reinforced screw feeder (15) is input to the solid compounding ingredient in the reinforced hopper (7) of compounding ingredient respectively in the rubber continuous mixing device (30) according to quantity.
3. niggerhead continuous mixing equipment, comprise kneading device, it is characterized in that rubber conveying device (1) is the niggerhead of the steep-lead thread device (20) of plasticating continuously with the two-spool feeding section of plasticating of niggerhead raw material feeding (216), niggerhead is plasticated broken-down rubber film that device (20) extrudes continuously through the reinforced control device input of sizing material rubber continuous mixing device (30), the solid compounding ingredient through the reinforced control device of compounding ingredient with the broken-down rubber film by same mixing spout (331) input rubber continuous mixing device (30); Reinforced control device of sizing material and the reinforced control device connection device control system of compounding ingredient.
4. niggerhead continuous mixing equipment according to claim 3, it is characterized in that the reinforced control device of sizing material is sizing material belt conveyer scale (13), sizing material belt conveyer scale (13) is measured the weight of the broken-down rubber that adds rubber continuous mixing device (30), and metrical information is sent to apparatus control system.
5. niggerhead continuous mixing equipment according to claim 3, it is characterized in that the reinforced control device of compounding ingredient comprises compounding ingredient feed in raw material hopper (7) and reinforced screw feeder (15), the power motor connection device control system of the screw feeder (15) that feeds in raw material.
6. niggerhead continuous mixing equipment according to claim 5, it is characterized in that the feed in raw material charging aperture of hopper (7) of compounding ingredient is communicated with the compounding ingredient storage device, the compounding ingredient storage device comprises the compounding ingredient storage hopper and stores screw feeder (16) that the compounding ingredient storage hopper connects gas delivery system (8).
7. according to claim 3 or 4 described niggerhead continuous mixing equipments, it is characterized in that rubber continuous mixing device (30) connects refueling device (11); The measuring pump connection device control system of refueling device (11).
8. according to claim 3 or 5 described niggerhead continuous mixing equipments, it is characterized in that the charging aperture of the reinforced control device of compounding ingredient connects compounding ingredient mixed stirring device (9), at least two kinds of compounding ingredients evenly mix in compounding ingredient mixed stirring device (9); Compounding ingredient mixed stirring device (9) is communicated with the compounding ingredient storage device.
9. niggerhead continuous mixing equipment according to claim 3, it is characterized in that niggerhead is plasticated continuously installs that a pair of incorgruous screw thread, parallel, incorgruous rotation, rotating speed equate, the rotor of plasticating (21) of threaded portion engagement in the machine barrel of plasticating (22) of device (20), along plasticate successively on the sizing material direction of advance is plasticated rotor (21) feeding section (216), the section of plasticating, the extruding zone of plasticating (212); The feeding section (216) of plasticating is the steep-lead thread element; The section of plasticating is divided the screwing element (215) of plasticating, screw thread fluting screwing element (214) and barrel pins screwing element (213); Rotor (21) rear end of plasticating connects the power drive system of plasticating, and the spout of plasticating (221) on the machine barrel of plasticating (22) is communicated with rubber conveying device (1).
10. niggerhead continuous mixing equipment according to claim 9, the feeding section of plasticating (216) of the rotor (21) that it is characterized in that plasticating be pitch from after the one start screw that reduces forward; Plasticate the spiral ridge of a long spiral ridge and two weak points is arranged on the screwing element (215); Screw thread fluting screwing element (214) be pitch by after the double thread that reduces forward, have screw channel (2141) on the spiral shell rib perpendicular to screw thread; Barrel pins screwing element (213) is the uniform pitch double thread, has the ring-shaped groove (2131) perpendicular to rotor axis on it, is inserted with the pin that is fixed on the machine barrel of plasticating (22) in the ring-shaped groove (2131); The extruding zone (212) of plasticating is a double thread, is divided into two parts, the latter part of thread pitch that connects the section of plasticating by after reduce forward, the thread pitch of a preceding part is equal.
11. niggerhead continuous mixing equipment according to claim 3, it is characterized in that a pair of incorgruous screw thread of the interior installation of mixing machine barrel (33) of rubber continuous mixing device (30), parallel, incorgruous rotation, rotating speed equate, the mixing rotor (32) of threaded portion engagement, mixing feeding section (329), kneading section (327), mixing section, mixing extruding zone (322) are arranged on the mixing rotor (32); Mixing feeding section (329) is the steep-lead thread structure; Kneading section (327) adopts the toothed disc structure; Mixing section is formed by three sections, and mixing section I (328) is the shearing rotor mixing elements, and mixing section II (325) is the meshing rotor mixing elements, and mixing section III (323) is big helical pitch rotor mixing elements; Mixing rotor rear end connects mixing power drive system, and the mixing spout (331) on the mixing machine barrel (33) is communicated with the reinforced control device of sizing material, the reinforced control device of compounding ingredient.
12. niggerhead continuous mixing equipment according to claim 11 is characterized in that mixing feeding section (329) is an one start screw, pitch by after reduce forward; Toothed disc end face on two mixing rotors (32) of kneading section (327) is relative, leaves the gap; One end of mixing section I (328) has the different left-handed lug, nib of two segment length, and the other end has the different dextrorotation lug, nib of two segment length; Mixing section II (325) has the spiral lug, nib of two weak points, and a long spiral lug, nib is arranged between the spiral lug, nib of two weak points; Two spiral shell ribs are arranged on the mixing section III (323), the spiral shell rib by screw thread rotation direction difference, helical angle is different two sections be threaded and form; Mixing extruding zone (322) is a double thread, its latter part of pitch by after reduce forward, preceding a part of pitch equates.
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| CN2011100262123A CN102120345B (en) | 2011-01-25 | 2011-01-25 | Blocky rubber continuous mixing method and device |
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| CN2011100262123A CN102120345B (en) | 2011-01-25 | 2011-01-25 | Blocky rubber continuous mixing method and device |
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| CN102120345B CN102120345B (en) | 2013-02-20 |
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| CN104162968A (en) * | 2014-05-24 | 2014-11-26 | 江苏新达科技有限公司 | Rubber processing apparatus and processing technology thereof |
| CN104441301A (en) * | 2014-11-14 | 2015-03-25 | 青岛科技大学 | Continuous serial-type rubber mixing method |
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