CN106273022B - A kind of continous way rubber mixing-milling technique method - Google Patents
A kind of continous way rubber mixing-milling technique method Download PDFInfo
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- CN106273022B CN106273022B CN201610664108.XA CN201610664108A CN106273022B CN 106273022 B CN106273022 B CN 106273022B CN 201610664108 A CN201610664108 A CN 201610664108A CN 106273022 B CN106273022 B CN 106273022B
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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
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
- B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury type
-
- 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
- B29B7/24—Component parts, details or accessories; Auxiliary operations for feeding
- B29B7/242—Component parts, details or accessories; Auxiliary operations for feeding in measured doses
- B29B7/244—Component parts, details or accessories; Auxiliary operations for feeding in measured doses of several materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/728—Measuring data of the driving system, e.g. torque, speed, power, vibration
-
- 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
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7461—Combinations of dissimilar mixers
-
- 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
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/748—Plants
-
- 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
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7485—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—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
- 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
-
- 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
- B29B7/24—Component parts, details or accessories; Auxiliary operations for feeding
- B29B7/246—Component parts, details or accessories; Auxiliary operations for feeding in mixers having more than one rotor and a casing closely surrounding the rotors, e.g. with feeding plungers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
-
- 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
- B29B9/00—Making granules
- B29B9/08—Making granules by agglomerating smaller particles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a kind of continous way rubber mixing-milling technique methods, including one section of step of continuous mixing：By in raw rubber raw material in load weighted formula a part and formula in other each systems be added in mixer and be kneaded；After being kneaded the predetermined time, sizing material is directly entered in counter rotation twin screw extruder and is squeezed out；Sizing material after extrusion, which is directly entered in double roller tablet press machine, carries out compression molding, obtains pre-dispersed rubber master batch；Continuous two sections of steps of plasticating：Remainder in raw rubber raw material in formula is added in continuous plasticator and is plasticated, broken-down rubber is obtained；Three sections of steps of continuous mixing：The pre-dispersed rubber master batch and the broken-down rubber are continuously and quantitatively added in continuous mixer and carry out continuous mixing.Beneficial effects of the present invention：Time of the sulphur in mixer is short, temperature is low, will not early sulphur, the glue produced is uniform, quality is high, consecutive production, and production efficiency is high.
Description
Technical field
The present invention relates to rubber processing techniques fields, it particularly relates to a kind of continous way rubber mixing-milling technique method.
Background technology
Rubber industry is one of important foundation industry of national economy, and it is indispensable that it not only provides daily life for people
Daily and medical equal light industrys rubber product, and carried to the heavy industry such as digging, traffic, building, machinery, electronics and new industry
For various rubber system production equipments or rubber components, and the quality of mixing technology has decisive work to the quality of rubber processing product
With, therefore, produce low energy consumption, high efficiency, high-quality rubber to be rubber industry will constantly solve the problems, such as.
Traditional method for mixing rubber can not achieve scale continuous production, if to realize scale continuous production,
Need to be equipped with more with model mixer or open mill, large area be provided park warehouse, and whole production line is too long, when expending
Between it is more, and multiple operations step sequence is both needed to be accomplished manually and causes efficiency more low.
Traditional mixing method is all to add sulphur on a mill, because the difference of the refining glue technology of people makes sizing material quality not
Stablize, insecurity increases, and traditional calendering process be easy to cause early sulphur.
For rubber mixing-milling technique, there are multinomial improvement in existing patented technology, for example, Chinese patent application
In 201510405481.9, a kind of Full-automatic continuous method for mixing rubber for cable factory is specifically disclosed, wherein vulcanizing
System is added in two sections of supplements of continuous mixer are kneaded, and does not solve the problems, such as early sulphur truly completely.
For another example, a kind of tandem rubber compound continuous mixing method is disclosed in Chinese patent application 201410648268.6,
In, it when being kneaded during mixer is added, is first added in mixer after being plasticated, sulphur and accelerating agent is removed being separately added into
Except compounding agent be kneaded.The improvement that above-mentioned mixing method is made only for traditional rubber calendering process, cannot be very
Good solves the problems, such as over cure, does not fully achieve continuous mixing.
Invention content
For above-mentioned technical problem in the related technology, the present invention proposes a kind of continous way rubber mixing-milling technique method, no
Can only realize that continuous rubber is kneaded production, and the sizing material produced will not early sulphur, various aspects of performance is more excellent.
To realize the above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of continous way rubber mixing-milling technique method, including one section of continuous mixing, continuous plasticate two sections and continuous mixing three
Section, one section of step of the continuous mixing include：By in raw rubber raw material in load weighted formula a part and formula in other are each
System is added in mixer and is kneaded；After being kneaded the predetermined time, sizing material is directly entered in counter rotation twin screw extruder and carries out
It squeezes out；Sizing material after extrusion, which is directly entered in double roller tablet press machine, carries out compression molding, obtains pre-dispersed rubber master batch；
Continuous two sections of steps of plasticating include：Remainder in raw rubber raw material in formula is added to continuous plasticator
In plasticate, obtain broken-down rubber；
Three sections of steps of the continuous mixing include：By the pre-dispersed rubber master batch and the broken-down rubber continuously and quantitatively company of addition
Continuous mixing is carried out in continuous kneading machine, obtains rubber compound.
Further, sizing material carries out slice and cooling after three sections of the continuous mixing.
Further, raw rubber raw material is 1/4 of raw rubber raw material in formula in one section of step of the continuous mixing, described continuous
Raw rubber raw material is 3/4 of raw rubber raw material in formula in two sections of steps of plasticating.
Further, the proportioning of pre-dispersed rubber master batch and the broken-down rubber is to pass through control in three sections of steps of the continuous mixing
The ratio of the screw speed of the screw speed of double screw extruder, the roller rotating speed of double roller tablet press machine and continuous plasticator is 1：1：
1。
Preferably, the technological parameter of mixer is in one section of the continuous mixing：70% fill factor, rotor speed 60 ±
15r/min, temperature control are 50 ± 10 DEG C, 0.6 ± 0.05MPa of ram piston pressure, mixing time 1min；The spiral shell of double screw extruder
Bar rotating speed is 25rpm；The roller rotating speed rotating speed of double roller tablet press machine is 25rpm.
Preferably, continuous mixer rotor speed is 25rpm, feeding section machine barrel temperature control in three sections of steps of the continuous mixing
Temperature is 95 DEG C, and mixing section machine barrel temperature control temperature is 85 DEG C, and extruding zone machine barrel temperature control temperature is 75 DEG C, inside kneading machine head
Cooling duct temperature is 65 DEG C.
Further, using mixing extrusion molding all-in-one machine, wherein mixer in one section of step of the continuous mixing
It is arranged in the top of the counter rotation twin screw extruder, the discharge port of the mixer corresponds to the counter rotation twin screw extruder
Feed inlet；The double roller tablet press machine replaces the head of the counter rotation twin screw extruder, the counter rotation twin screw extruder to go out
Material mouth corresponds to the feeding mouth of the double roller tablet press machine.
Preferably, the weighing in one section of step of the continuous mixing uses automatic weighing device, and is arranged in the mixing
The leading portion of machine weighs raw rubber raw material, small powder, carbon black and vulcanizing system in formula, is added in mixer after weighing respectively.
Further, pre-dispersed rubber master batch and broken-down rubber are all made of conveyer belt conveying in three sections of steps of the continuous mixing
Mode be continuously and quantitatively added in continuous mixer and carry out continuous mixing.
Preferably, the pre-dispersed rubber master batch is discharged to by double roller tablet press machine on conveyer belt；The broken-down rubber is by continuously moulding
The discharge port of mill is discharged on conveyer belt, and conveyer belt is controlled by motor realizes positive and negative rotation, is periodically delivered to sizing material continuously
Kneading machine.
Beneficial effects of the present invention：Time of the sulphur in mixer is short in this process, temperature is low, will not early sulphur,
The glue produced is uniform, quality is high, and consecutive production, production efficiency is high, and equipment room is compact-sized, single unit system floor space compared with
It is small, cost of investment is low.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the process flow diagram of the continous way method for mixing rubber according to embodiments of the present invention；
Fig. 2 is the structure principle chart of the continous way compounding rubber device according to embodiments of the present invention；
Fig. 3 is the front view of the continuous mixer according to embodiments of the present invention；
Fig. 4 is the vertical view of the continuous mixer according to embodiments of the present invention；
Fig. 5 is tensile strength comparison column schematic diagram in the properties of rubber contrast experiment according to embodiments of the present invention；
Fig. 6 is tearing strength comparison column schematic diagram in the properties of rubber contrast experiment according to embodiments of the present invention；
Fig. 7 is carbon black dispension degree comparison column schematic diagram in the properties of rubber contrast experiment according to embodiments of the present invention.
In figure：
1, automatic weighing system；2, internal mixing parts；3, twin-screw extrusion part；4, double roll tablet machine heads；5, it continuously plasticates
Machine；6, conveyer belt；7, continuous mixer.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained belong to what the present invention protected
Range.
As shown in Figure 1, a kind of continous way rubber mixing-milling technique method, including following step according to embodiments of the present invention
Suddenly：
（1）Prepare rubber master batch：Small powder, carbon black and vulcanizing system are weighed by automatic weighing system, by whole small powders, charcoal
Black, vulcanizing system and 1/4 glue are added in internal mixing parts, and shearing is kneaded 1 minute；Temperature is not more than 100 DEG C in mixing process,
Uniformly mixed sizing material is discharged to the feeding mouth of twin-screw extrusion part by the outlet of internal mixing parts, and twin-screw counter rotating is eaten
Expect, sizing material is carried out to strengthen shearing connection solution, compared with parallel dual-screw extruding machine, counter rotation twin screw extruder transfer efficiency height,
Exhaust effect and melting effect are more preferable；Sizing material after uncoupling is mediated passes through double roller tabletting by the discharge port of twin-screw extrusion part
Head carries out tabletting, and rubber master batch is made.Double roll tablet machine heads will be supplied to feeding for continuous mixer after rubber master batch tabletting by conveyer belt
In material mouth, the continuous flow rate to continuous mixer is realized.
The running parameter of wherein internal mixing parts is：Using 70% fill factor, 60 ± 15r/min of rotor speed, temperature control 50
± 10 DEG C, 0.6 ± 0.05MPa of ram piston pressure；The rotor speed of twin-screw extrusion part is 25rpm；Double roll tablet machine heads
Rotating speed is 25rpm.
（2）It plasticates：The glue of residue 3/4 is added in continuous plasticator, is plasticated；By control double screw extruder and
The rotating speed of continuous plasticator carries out the proportioning of rubber master batch and remaining glue.The rotating speed of continuous plasticator is 25rpm.
（3）Conveying：Rubber master batch is discharged to by double roll tablet machine heads on conveyer belt, and the glue after plasticating is gone out by continuous plasticator
Material mouth is discharged on conveyer belt, and conveyer belt is controlled by motor realizes positive and negative rotation, and sizing material is periodically delivered to continuous mixer.
（4）It is kneaded：3/4 glue plasticated in continuous plasticator is transported to company with by the rubber master batch of double roller tabletting machine
It is kneaded in continuous kneading machine.Continuous mixer rotor speed is 25rpm, and feeding section machine barrel temperature control temperature is 95 DEG C, mixing section
Machine barrel temperature control temperature is 85 DEG C, and extruding zone machine barrel temperature control temperature is 75 DEG C, and the cooling duct temperature inside kneading machine head is 65
℃。
（5）Slice and cooling：Continuous mixer completes mixing to sizing material by adjusting its rotor speed and temperature control system,
The sizing material temperature controlled during mixing in continuous mixer is not more than 100 DEG C, to prevent the vulcanization of sizing material；Sizing material warp after mixing
Cross the slice that continuous mixer extruding zone realizes sizing material；It is cold through film after-treatment device that continuous mixer is kneaded the sizing material produced
But it is for use that film storage is formed after, folding.
Continous way rubber mixing-milling technique method specifically carries out in continous way compounding rubber device in the present embodiment, such as Fig. 2-
Shown in 4, which includes batching system 1, internal mixing parts 2, twin-screw extrusion part 3, double roll tablet machine heads
4, continuous plasticator 5, conveyer belt 6, continuous mixer 7, the lower section docking twin-screw extrusion part 3 of the dumping mouth of internal mixing parts 2
Feed inlet, to realize continous way feeding；The head of twin-screw extrusion part 3 directly connects double roll tablet machine heads 4, double roller tablet press machine
First 4 are docked by conveyer belt 6 with the spout of 7 upper end of continuous mixer, and the head of continuous plasticator 5 by conveyer belt 6 and connects
The spout docking of continuous kneading machine upper end.
（1）One section of continuous mixing is carried out in the present invention, using the batching of continuous internal mixer, including the top
System, as the internal mixing parts of main body, the twin-screw extrusion part of lower section and double roll tablet machine heads as head.
In the present invention to the weighing of raw material in formula with conveying using batching system carry out manually weigh or by
Computer controls automatic weighing.Batching system include carbon black automatically claim and transport system, oil plant claim automatically and transport system,
The automatic title of vulcanizing system and transport system and the automatic title of raw rubber and transport system.
Continuous internal mixer combines the excellent mixed characteristic of mixer and the characteristics of double screw extruder is worked continuously.It borrows
The multiple action for helping rotor spiral shell rib and kneading chamber imposes the extruding of strength to material, shears, the effect of mixing.Make material extremely short
Time in so that energy is dissipated in material under the rate being exceedingly fast, so it shear-mixed effect it is very strong.For height
The material of dispersion mixing degree, strong immixture lead to the gel particles in polymer and expect block with shearing force
It is crushed rapidly evenly dispersed.
（2）To raw rubber in the present invention（It is natural rubber in embodiment）It plasticates using continuous plasticator.Using
The principle that mechanical force is plasticated is：Under mechanical force, it is first turned off rubber macromolecule chain in low temperature and generates macromolecular
Free radical.If the aerobic presence of surrounding, the free radical of generation can be acted on oxygen immediately, generate rubber macromolecule hydroperoxide one
Thus prevent recombining for rubber free radical, the effect plasticated is played.When temperature is higher due to rubber softening, mechanical force
Effect be obviously reduced, the oxygen of rubber surface is activated, with rubber macromolecule occur oxidation scission, complete to plasticate.
The process of plasticating is that rubber macromolecule chain is made to be broken, and strand is by the long mistake for shortening and making even molecular weight distribution
Journey.Cause during plasticate the factor that macromolecular chain is broken it is main there are two：First, mechanical damage acts on；Second is that thermal oxide is dropped
Solution acts on.When cold plastication, mainly since mechanical damage acts on, under strong mechanical force chain rupture occurs for macromolecular.
When heat plasticization, thermal oxidative degradation effect is occupied an leading position.
Using between the screw rod and machine barrel of masticator mechanical shear stress and thermal effect at high temperature so that rubber molecular chain is broken,
It is that screw rod oxygen in method of plasticating is smaller to the effect of raw rubber with the difference that open mill and mixer are plasticated.It is plasticated using masticator
When should strictly control dump temperature at 180 DEG C hereinafter, and pay attention to preventing sizing material surface oxidation after plastic emitting from acting on, avoid producing as possible
Raw half-cooked glue.
Rubber device of continuously plasticating includes host, 4 part of charging mechanism, heating and cooling system and control system, control system
System connection heating and cooling system, transmission system and charging system, realize the Intellectualized monitoring to plasticator operating process.
The continuous plasticator of rubber uses the parallel dual-rotor structure of combined type, birotor to rotate inward, per roots rotor by realizing
The Various Components for feeding, plasticate, conveying and squeezing out function are sequentially arranged at according to phase and sequence on mandrel, this building blocks combination
Formula structure is convenient for manufacture, installation, maintenance, and type that can be by replacement element or position, improves effect of plasticating.Continuously
Plasticator utilizes kneading block, engagement type mixing rotor, shearing-type mixing rotor, pin barrel, hexagonal prisms, large pitch, toothed disc
Etc. a variety of rotor elements of plasticating, strong shearing is carried out to sizing material, stretches, tear and squeezes, rubber macromolecule chain is made to be broken, it is raw
At macromolecular radical, and obtain abundant, effect of uniformly plasticating.
It thus continuously plasticates two sections using continuous plasticator as described in the present invention, using cold plastication, reduces raw rubber
Molecular weight and viscosity obtain mobility appropriate to improve its plasticity, to meet the needs for being kneaded and being molded further processing.
（3）Three sections of continuous mixing is carried out in the present invention using continuous muller, continuous mixing machine rotor is big by two
Small rotor composition identical, structure is symmetrical.When incorgruous two-rotor continuous mixer is run, two roots rotors in it is incorgruous, etc.
Rotating speed and partially engaged state rotation, to realize the comprehensive functions such as charging, shearing, kneading, conveying, mixing and extrusion.Such as Fig. 3-4
It is shown.
The agent structure of the machine barrel of continuous muller includes the machine barrel of four segment structures and size all same, every section of machine barrel it is interior
Portion offers circular trough and offers cooling duct for controlling kneading machine machine for installing mixing machine rotor, the inner wall of every section of machine barrel
The temperature of cylinder is bolted sealing docking between four sections of machine barrels.
Wherein, spout is offered right over right end machine barrel, spout edge is provided with thickening layer, to prevent from passing through
Bolt with storaging bucket is through dock when penetrate cooling duct, continuous internal mixer is passed through with the sizing material that continuous plasticator obtains defeated
It send band to be transported to above spout to feed.
Kneading machine head is internally provided with temperature of the cooling duct for controlling kneading machine head, kneading machine head and mixing
It is bolted sealing docking between machine machine barrel, the different cooling media such as water or oil can be selected in cooling duct as needed.
Embodiment
For the formula used in the present embodiment for all-steel radial tire tread glue formula, mixing method uses company of the present invention
Continuous formula rubber mixing-milling technique method, wherein specific formula table is as follows：
Comparative example
In the present invention as a comparison using traditional continous way calendering process method, specific steps therein include：
（1）Using 65 ± 3% fill factor, the production of rubber compound described in the concrete model and embodiment with mixer
According to formula, calculate spare after the quality of various materials and weighing, the running parameter for setting mixer is using 70% filling
Number, 60 ± 15r/min of rotor speed, temperature control are 50 ± 10 DEG C, 0.6 ± 0.05MPa of ram piston pressure；
（2）By step（1）Plasticating for 35 ± 3s is carried out in the natural rubber input mixer of middle weighing, is then added respectively again
Enter carbon black N330, zinc oxide, anti-aging agent RD, plasticizer A, stearic acid SA are kneaded;When the rubber compound temperature in banburying chamber reaches
When to 110 ± 3 DEG C and 120 ± 3 DEG C, each raising and lowering floating weight 1 time so that rubber compounding is abundant, when the glue in banburying chamber
Material rubber compound temperature reaches 140 ± 3 DEG C, completes to be kneaded top bolt under opening and sizing material is discharged；
（3）By the sizing material of discharge after open mill in the prior art carries out multiple tabletting, add described in formula
Accelerant NOBS and sulphur make it be sufficiently mixed by way of beating triangle bag, then carry out subsequent related process and test pair
Than.
Fig. 5 is that continous way rubber mixing-milling technique method of the present invention produces five respectively with traditional mixer mixing method
The corresponding tensile strength of group sizing material compares column schematic diagram, wherein horizontal axis representative sample number be divided into the 1st group, the 2nd group, the 3rd group,
4th group and the 5th group, the longitudinal axis represents tensile strength/MPa, and black column represents traditional mixer mixing method, and grey column represents Ben Fa
Bright continous way rubber mixing-milling technique method.
Fig. 6 is that continous way rubber mixing-milling technique method of the present invention produces five respectively with traditional mixer mixing method
The corresponding tearing strength of group sizing material compares column schematic diagram, wherein horizontal axis representative sample number be divided into the 1st group, the 2nd group, the 3rd group,
4th group and the 5th group, the longitudinal axis represents tearing strength KN/m, and black column represents traditional mixer mixing method, and grey column represents Ben Fa
Bright continous way rubber mixing-milling technique method.
Fig. 7 is that continous way rubber mixing-milling technique method of the present invention produces five respectively with traditional mixer mixing method
The corresponding carbon black dispension degree of group sizing material compares column schematic diagram, wherein horizontal axis representative sample number be divided into the 1st group, the 2nd group, the 3rd
Group, the 4th group and the 5th group, the longitudinal axis represent carbon black dispension degree, and black column represents traditional mixer mixing method, and grey column represents this
Invention continous way rubber mixing-milling technique method.
Find out from Fig. 5-7, the properties of rubber that continous way rubber mixing-milling technique method of the present invention is generated is far above
The sizing material that traditional rubber mixing technique is produced.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (9)
1. a kind of continous way rubber mixing-milling technique method, including one section of continuous mixing, continuous plasticate two sections and three sections of continuous mixing,
It is characterized in that,
One section of step of the continuous mixing includes：By in raw rubber raw material in load weighted formula a part and formula in other are each
System is added in mixer and is kneaded；After being kneaded the predetermined time, sizing material is directly entered in counter rotation twin screw extruder and carries out
It squeezes out；Sizing material after extrusion, which is directly entered in double roller tablet press machine, carries out compression molding, obtains pre-dispersed rubber master batch；
Continuous two sections of steps of plasticating include：By the remainder in raw rubber raw material in formula be added in continuous plasticator into
Row is plasticated, and broken-down rubber is obtained；
Three sections of steps of the continuous mixing include：The pre-dispersed rubber master batch and the broken-down rubber are continuously and quantitatively added continuous mixed
Continuous mixing is carried out in mill, obtains rubber compound；
Wherein, raw rubber raw material is 1/4 of raw rubber raw material in formula in one section of step of the continuous mixing, described continuously to plasticate two sections
Raw rubber raw material is 3/4 of raw rubber raw material in formula in step；
The technological parameter of mixer is in one section of the continuous mixing：70% fill factor, 60 ± 15r/min of rotor speed, temperature control
It is 50 ± 10 DEG C, 0.6 ± 0.05MPa of ram piston pressure, mixing time 1min；
The formula includes raw rubber raw material, small powder, carbon black and vulcanizing system.
2. continous way rubber mixing-milling technique method according to claim 1, which is characterized in that sizing material is through the continuous mixing
Slice and cooling are carried out after three sections.
3. continous way rubber mixing-milling technique method according to claim 1, which is characterized in that three sections of steps of the continuous mixing
The proportioning of pre-dispersed rubber master batch and the broken-down rubber is screw speed, the double roller tablet press machine by controlling double screw extruder in rapid
The ratio of the screw speed of roller rotating speed and continuous plasticator is 1：1：1.
4. continous way rubber mixing-milling technique method according to claim 3, which is characterized in that in one section of the continuous mixing
The screw speed of double screw extruder is 25rpm；The roller rotating speed rotating speed of double roller tablet press machine is 25rpm.
5. continous way rubber mixing-milling technique method according to claim 4, which is characterized in that three sections of steps of the continuous mixing
Continuous mixer rotor speed is 25rpm in rapid, and feeding section machine barrel temperature control temperature is 95 DEG C, and mixing section machine barrel temperature control temperature is 85
DEG C, extruding zone machine barrel temperature control temperature is 75 DEG C, and the cooling duct temperature inside kneading machine head is 65 DEG C.
6. continous way rubber mixing-milling technique method according to claim 1, which is characterized in that one section of step of the continuous mixing
It is arranged in the top of the counter rotation twin screw extruder, institute using mixing extrusion molding all-in-one machine, wherein mixer in rapid
The discharge port for stating mixer corresponds to the feed inlet of the counter rotation twin screw extruder；The double roller tablet press machine replaces described incorgruous double
The head of screw extruder, the discharge port of the counter rotation twin screw extruder correspond to the feeding mouth of the double roller tablet press machine.
7. continous way rubber mixing-milling technique method according to claim 6, which is characterized in that one section of step of the continuous mixing
Weighing in rapid uses automatic weighing device, and the leading portion in the mixer is arranged, weigh respectively raw rubber raw material in formula,
Small powder, carbon black and vulcanizing system are added to after weighing in mixer.
8. continous way rubber mixing-milling technique method according to claim 1, which is characterized in that three sections of steps of the continuous mixing
Pre-dispersed rubber master batch and broken-down rubber are all made of the mode that conveyer belt conveys and are continuously and quantitatively added in continuous mixer and connected in rapid
It is continuous to be kneaded.
9. continous way rubber mixing-milling technique method according to claim 8, which is characterized in that the pre-dispersed rubber master batch passes through
Double roller tablet press machine is discharged on conveyer belt；The broken-down rubber is discharged to by the discharge port of continuous plasticator on conveyer belt, and band logical is conveyed
It crosses motor control and realizes positive and negative rotation, sizing material is periodically delivered to continuous mixer.
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| CN201610664108.XA CN106273022B (en) | 2016-08-12 | 2016-08-12 | A kind of continous way rubber mixing-milling technique method |
| PCT/CN2017/076418 WO2018028196A1 (en) | 2016-08-12 | 2017-03-13 | Continuous rubber mixing process method |
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| CN106273022B (en) * | 2016-08-12 | 2018-11-13 | 青岛科技大学 | A kind of continous way rubber mixing-milling technique method |
| CN108286545B (en) * | 2018-04-17 | 2023-10-03 | 大连华锐重工集团股份有限公司 | Hydraulic control system for upper ram oil cylinder of internal mixer |
| CN108638371B (en) * | 2018-05-03 | 2020-06-05 | 青岛凯东工业有限公司 | New material production agitating unit |
| CN109435089A (en) * | 2018-08-30 | 2019-03-08 | 惠州优比贝柠科技股份有限公司 | A kind of pre-dispersed processing technology of thermal insulation material |
| CN109333960B (en) * | 2018-10-30 | 2023-12-08 | 双钱集团（江苏）轮胎有限公司 | Structure of double-screw sheet-discharging air suction pipeline |
| CN111995804A (en) * | 2020-07-23 | 2020-11-27 | 安徽睿驰精密部件有限公司 | High-strength rubber material and processing technology |
| CN113977793B (en) * | 2021-10-26 | 2024-05-14 | 福建晋江市山水鞋材有限公司 | EVA material banburying equipment and banburying method |
| CN115071156B (en) * | 2022-04-28 | 2024-05-10 | 山东玲珑轮胎股份有限公司 | Pre-composite cushion rubber for tire and preparation method thereof |
| CN115122523B (en) * | 2022-07-05 | 2023-06-13 | 浙江天书密封件有限公司 | PTFE rubber composite production line |
| CN115816686A (en) * | 2022-12-12 | 2023-03-21 | 东莞市拓鸿电子材料有限公司 | Automatic plastic suction material mixing equipment and use method thereof |
| CN116373197B (en) * | 2023-04-19 | 2023-11-07 | 苏州恒则成智能科技有限公司 | Rubber production equipment and method |
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| JP2008284852A (en) * | 2007-05-21 | 2008-11-27 | Toyo Tire & Rubber Co Ltd | Continuous kneading method of rubber |
| CN101289563B (en) * | 2008-06-24 | 2010-07-14 | 四川川东电缆有限责任公司 | Chlorinated polythylene fire retardant jacket compositions |
| CN101643552B (en) * | 2009-09-21 | 2011-09-28 | 际华三五三七制鞋有限责任公司 | Vulcanized rubber for shoes capable of realizing high effective and fast vulcanization and preparation method and vulcanization process thereof |
| CN101831090B (en) * | 2010-04-02 | 2011-12-21 | 南京理工大学 | High-performance natural rubber vulcanized rubber of carbon-containing nano-tube, and preparation method thereof |
| CN102120345B (en) * | 2011-01-25 | 2013-02-20 | 青岛科技大学 | Blocky rubber continuous mixing method and device |
| CN104400925A (en) * | 2014-10-30 | 2015-03-11 | 际华三五三七制鞋有限责任公司 | Mixing technology of calendered black rubber surround bar rubber for liberation shoes |
| CN104530507A (en) * | 2014-12-23 | 2015-04-22 | 青岛开世密封工业有限公司 | Process method for mixing low-hardness butyronitrile rubber |
| CN105150401B (en) * | 2015-07-10 | 2017-08-29 | 青岛科技大学 | A kind of Full-automatic continuous method for mixing rubber for cable factory |
| CN105254965A (en) * | 2015-10-16 | 2016-01-20 | 赛轮金宇集团股份有限公司 | Inner liner compound with air permeation resistance and low cost and for pneumatic tire |
| CN106273022B (en) * | 2016-08-12 | 2018-11-13 | 青岛科技大学 | A kind of continous way rubber mixing-milling technique method |
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