CN104441301A - Continuous serial-type rubber mixing method - Google Patents
Continuous serial-type rubber mixing method Download PDFInfo
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- CN104441301A CN104441301A CN201410648268.6A CN201410648268A CN104441301A CN 104441301 A CN104441301 A CN 104441301A CN 201410648268 A CN201410648268 A CN 201410648268A CN 104441301 A CN104441301 A CN 104441301A
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- mixing
- banbury
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- rotor
- mixing roll
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- 238000010074 rubber mixing Methods 0.000 title abstract description 3
- 238000002156 mixing Methods 0.000 claims abstract description 127
- 229920001971 elastomer Polymers 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 34
- 150000001875 compounds Chemical class 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 239000004615 ingredient Substances 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 238000005516 engineering process Methods 0.000 claims abstract description 11
- 239000011265 semifinished product Substances 0.000 claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 33
- 238000011144 upstream manufacturing Methods 0.000 claims description 33
- 230000001808 coupling Effects 0.000 claims description 24
- 238000010168 coupling process Methods 0.000 claims description 24
- 238000005859 coupling reaction Methods 0.000 claims description 24
- 238000004513 sizing Methods 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000007667 floating Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000003723 Smelting Methods 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000005183 dynamical system Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- 238000004898 kneading Methods 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000047 product Substances 0.000 abstract description 5
- 238000003672 processing method Methods 0.000 abstract description 2
- 230000001070 adhesive Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 238000003860 storage Methods 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000006229 carbon black Substances 0.000 description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N Stearic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000010058 rubber compounding Methods 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 3
- QSKQNALVHFTOQX-UHFFFAOYSA-M Sodium nonanoyloxybenzenesulfonate Chemical compound [Na+].CCCCCCCCC(=O)OC1=CC=CC=C1S([O-])(=O)=O QSKQNALVHFTOQX-UHFFFAOYSA-M 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 230000003712 anti-aging Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 240000008528 Hevea brasiliensis Species 0.000 description 1
- 238000007600 charging Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000010068 moulding (rubber) Methods 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010057 rubber processing Methods 0.000 description 1
- 238000010092 rubber production Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
- B29B7/286—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring properties of the mixture, e.g. temperature, 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
- B29B7/60—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
- 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
Abstract
The invention belongs to the technical field of a processing method of rubber forming, and relates to a continuous serial-type rubber mixing method. The method comprises the steps of calculating the mass of each material and setting working parameters of an internal mixer according to a specific model of the internal mixer and a production formula of rubber compound; mixing matrix adhesive and various accessory ingredients in the internal mixer, and discharging the formed primary mixed rubber into a storage hopper when the temperature of the rubber reaches 95+/-5 DEG C; pressing the primary mixed rubber into an opposite-direction dual-rotor continuous internal mixer by adopting a pressure weight through a feeding opening, carrying out the temperature-control two-sectional mixing for the primary mixed rubber by virtue of the cooperation of five sections of cooling passages, and discharging a formed semi-finished product rubber sheet through a discharging opening; adding an accelerator and sulfur after the semi-finished product rubber sheet is pressed by an open mill, and then carrying out the subsequent relevant process and test comparison analysis. By adopting the method, the continuity of the mixing technology is realized, non-uniformity for mixing small materials and rubber can be avoided, the production efficiency is improved, the quality of rubber products can be guaranteed, the energy loss in the mixing process can be reduced, and the manpower and material resource can be saved.
Description
Technical field:
The invention belongs to the processing method technical field of rubber-moulding, relate to a kind of tandem rubber compound continuous mixing method, the mixing of different formulations rubber can be applicable to.
Background technology:
Rubber industry is one of important foundation industry of national economy, it is not only the light industry rubber product such as daily and medical that people provide daily life indispensable, and provide various rubber production equipment or rubber components to the heavy industry such as digging, traffic, building, machinery, electronics and new industry, and the quality of the quality of mixing technology to rubber processing product has decisive role, therefore, produce low energy consumption, high efficiency, high-quality rubber be the problem that rubber industry constantly will solve.Current, the method of compounding rubber can be divided into mill mixing and mixer mixing substantially, these two kinds of compounding process all belong to step mixing technology, there is following drawback: need constantly to stop, discharging, charging, production efficiency is lower, energy resource consumption is larger; Two kinds equipment volume is huge, floor space is larger; Pressure, non-uniform temperature that in mixing process, each position of sizing material is subject to, cause rubber performance variant greatly, finally affects the quality of finished product; Compounding ingredient waste is serious, environmental pollution is larger.
Comparatively speaking, continous way mixing technology has following advantage: can make full use of mixing advantage own and realize continuous prodution, to enhance productivity; Can ensure in mixing process that pressure that sizing material each several part is subject to, temperature, refining glue time are identical, to improve the quality of rubber; Automaticity is high, can under stable process conditions glue stuff compounding, reduce drain on manpower and material resources; Equipment room cooperatively interacts closely, and floor space is less, cost of investment is low.The such as method of a kind of compounding rubber disclosed in Chinese patent 200910229437.1, compounding ingredient first mixes by it, and in banbury, drop into ultras and vulcanizing agent, realizes compounding rubber and settles at one go; This method can reduce flying dust, and compounding ingredient mixed in advance and rubber easily affine, good dispersion, shorten mixing time, reduce mixing power consumption, be conducive to preventing incipient scorch, but the automaticity of said method is not high, the standard reaching uniformity is also difficult to compounding ingredient premix, easily causes the performance of sizing material to produce deviation; Chinese patent 200580035588.3 discloses a kind of compounding rubber device and compounding process, it utilizes tandem mixing technology, banbury and mill are consisted of a mixing line, the pre-mixing of rubber mixing by hermetic type mixing roll be selectively supplied in the mixing line be set up in parallel by distributing conveyer belt, although this mixing technology improves melting efficiency, but it is mixing mixing with low temperature for constant temperature, the temperature of the constant maintenance of mixing middle needs cannot be ensured, the loss of energy can be brought simultaneously, increase cost; Therefore, realize the continuous mixing that truly automaticity is high, ensure that rubber performance quality is research direction of the present invention simultaneously.
Summary of the invention:
The present invention mainly solves in existing continuous mixing method that treatment process is many, apparatus and process is complicated, investment of production is large, high energy consumption and the technical problem such as sizing material quality is low, a kind of tandem rubber compound continuous mixing method that can be applicable to various formula is provided, solves while guarantee rubber compounding quality, to avoid compounding ingredient and the mixing problem such as uneven of matrix glue.
In order to solve the problem, the concrete technology step of the tandem rubber compound continuous mixing method of the present invention's design is as follows:
(1) activity coefficient of 65 ± 5% is adopted, with the factory formula of the concrete model of upstream banbury and elastomeric compound for basis, calculate the quality of various material and for subsequent use after accurate weighing, the running parameter that setting just mixes stage middle and upper reaches banbury is: rotor speed 60 ± 15r/min, temperature control is 50 ± 10 DEG C, ram piston pressure 0.6 ± 0.05MPa; Wherein material comprises matrix glue and compounding ingredient;
(2) the matrix glue weighed in step (1) is dropped into the formation softened rubber of plasticating carrying out 40 ± 10s in the banbury of upstream, and then the compounding ingredient added respectively except sulphur and promoter carries out mixing, floating weight is elevated once when the sizing material temperature in banburying chamber reaches 80 ± 5 DEG C, compounding ingredient and softened rubber are fully mixed, when the sizing material temperature in banburying chamber reaches 95 ± 5 DEG C, the first mixed glue formed is drained in storaging bucket by the lower top bolt opening upstream banbury;
(3) the first mixed glue in storaging bucket enters in the incorgruous two-rotor continuous mixer in downstream by spout under the effect of ram, and the rotating speed 30 ± 15r/min of setting mixing roll rotor carries out two-stage mixing; The inner totally four sections of cooling duct temperature offered of turning left from the right side of setting mixing roll machine barrel are respectively: 95 ± 5 DEG C, 85 ± 5 DEG C, 75 ± 5 DEG C and 65 ± 5 DEG C, the cooling duct temperature of setting mixing roll head inside is 55 ± 5 DEG C, forms semi-finished product film and discharged by discharge gate after mixing 5.5 ± 3min;
(4) the semi-finished product film of discharge is carried out repeatedly after compressing tablet through mill of the prior art, adding promoter and sulphur in the factory formula of elastomeric compound in step (1) again makes it fully mix by the mode of playing triangle bag, then carries out follow-up related process and test comparison analysis.
The tandem rubber compound continuous mixing method that the present invention relates to can be applicable to the mixing of the sizing materials such as all-steel radial tire tread glue formula, meridian riding tire tread glue formula or oblique load-carrying tire carcass glue formula.
The kneading device overall structure realizing tandem rubber compound continuous mixing method in the present invention is divided into the incorgruous two-rotor continuous mixer two parts of upstream banbury and downstream, adopt the through connection of end face seal mode to realize being incubated temperature control function by storaging bucket between the two, concrete structure comprises upstream banbury, No. I base, No. I frame, No. II base, the incorgruous two-rotor continuous mixer in downstream, No. II frame, ram, storaging bucket and No. II oil cylinder, No. I frame and No. II frame are fixedly connected on No. II base respectively by bolt, No. I base is bolted to connection the upstream banbury just mixed for carrying out sizing material, the incorgruous two-rotor continuous mixer in downstream is bolted and is arranged in No. I frame and No. II frame for carrying out two-stage mixing, throughly between the upper end by the incorgruous two-rotor continuous mixer in storaging bucket and downstream, the lower end of upstream banbury to dock, the upper end, left side of storaging bucket and No. I base are bolted, on the right side of it, upper end is bolted and is provided with No. II oil cylinder, No. II oil cylinder lower end is provided with ram by drive link anatomical connectivity, for the first mixed glue laminated of being discharged by upstream banbury in storaging bucket is entered in the incorgruous two-rotor continuous mixer in downstream to carry out continous way two-stage mixing, the agent structure of the incorgruous two-rotor continuous mixer in described downstream comprises discharge gate, mixing roll head, mixing roll rotor, mixing roll machine barrel, spout, No. I shaft coupling, No. I decelerator, No. II shaft coupling, No. I motor and cooling duct, the left end of mixing roll head offers discharge gate for discharging obtained semi-finished product film, the right-hand member of mixing roll head fixedly docks with the supporting mixing roll machine barrel being provided with mixing roll rotor in inside, spout is offered above the right-hand member of mixing roll machine barrel, spout eats the first mixed glue of discharging into upstream banbury with through docking of storaging bucket for the incorgruous two-rotor continuous mixer in downstream, the inside of mixing roll head offers cooling duct for controlling the temperature of mixing roll head, the inwall of mixing roll machine barrel is turned left from the right side and is offered totally four sections of cooling ducts successively and, for controlling the temperature of mixing roll machine barrel, temperature requiredly select oil or water as cooling medium to expand temperature-control range in cooling duct according to difference refining glue formula, turn left from the right side No. I motor of connecting successively, No. II shaft coupling, No. I decelerator and No. I shaft coupling forms dynamical system, jointly for the incorgruous two-rotor continuous mixer in downstream provides power.
The agent structure of the upstream banbury related in the present invention comprises lower top bolt, closed-smelting machine rotor, banburying chamber, gallery ports, floating weight, No. I oil cylinder, No. III frame, No. III shaft coupling, No. II decelerator, No. IV shaft coupling and No. II motor, banburying chamber is bolted and is arranged on No. I base, offering on the left of No. III frame can the gallery ports of closing type structure, gallery ports and banburying chamber through, closed-smelting machine rotor is provided with in banburying chamber, banburying chamber top is bolted and is provided with No. III frame, No. III frame is installed with No. I oil cylinder, No. I oil cylinder lower end is connected with floating weight by drive link, pressure during for ensureing that banbury works in banburying chamber, lower top bolt is connected through the hinge on No. I base for discharging, turning left from right side series connection is successively fixed on No. II motor No. I base, No. IV shaft coupling, No. II decelerator and No. III shaft coupling and jointly forms dynamical system for upstream banbury and provide power.
The present invention compared with prior art, the compounding process of the method for mixer mixing and incorgruous two-rotor continuous mixer is combined, achieve the continuity of mixing technology, avoid small powder and the uneven phenomenon of rubber compounding, substantially increase production efficiency, ensure that the quality of glue product, in the mixing process of the incorgruous two-rotor continuous mixer in downstream, coordinate five sections of cooling ducts and utilize different cooling medium can increase temperature control scope, temperature control insulation is carried out for the mixing and dump temperature needed for different formulations, achieve low temperature preferably mixing mixing with constant temperature, and decrease the loss of energy in mixing process, save the application of manpower and materials, the sizing material produced has good hot strength, tearing strength and carbon black dispension degree etc.
Accompanying drawing illustrates:
Fig. 1 is the technological process schematic block diagram of the tandem rubber compound continuous mixing method that the present invention relates to.
Fig. 2 is the agent structure principle schematic of the continuous mixing device that the present invention relates to.
Fig. 3 is the structural principle side view of the continuous mixing device middle and upper reaches banbury that the present invention relates to.
The hot strength that Fig. 4 to be the tandem rubber compound continuous mixing method that the present invention relates to traditional mixer mixing method produce respectively five groups of sizing materials are corresponding contrasts column schematic diagram, wherein transverse axis representative sample numbering is divided into the 1st group, the 2nd group, the 3rd group, the 4th group and the 5th group, the longitudinal axis represents hot strength/MPa, black post represents traditional mixer mixing method, and white post represents constant temperature compounding process of the present invention.
The tearing strength that Fig. 5 to be the tandem rubber compound continuous mixing method that the present invention relates to traditional mixer mixing method produce respectively five groups of sizing materials are corresponding contrasts column schematic diagram, wherein transverse axis representative sample numbering is divided into the 1st group, the 2nd group, the 3rd group, the 4th group and the 5th group, the longitudinal axis represents tearing strength KN/m, black post represents traditional mixer mixing method, and white post represents constant temperature compounding process of the present invention.
The carbon black dispension degree that Fig. 6 to be the tandem rubber compound continuous mixing method that the present invention relates to traditional mixer mixing method produce respectively five groups of sizing materials are corresponding contrasts column schematic diagram, wherein transverse axis representative sample numbering is divided into the 1st group, the 2nd group, the 3rd group, the 4th group and the 5th group, the longitudinal axis represents carbon black dispension degree, black post represents traditional mixer mixing method, and white post represents constant temperature compounding process of the present invention.
Detailed description of the invention:
Also by reference to the accompanying drawings the present invention is described in further detail below by embodiment.
Embodiment 1:
The present embodiment is described for all-steel radial tire tread glue formula, and the tandem rubber compound continuous mixing method related to specifically comprises following processing step:
(1) activity coefficient of 65 ± 5% is adopted, with the factory formula of the concrete model of upstream banbury 1 and elastomeric compound for basis, calculate the quality of various material and weigh rear for subsequent use, the running parameter that setting just mixes stage middle and upper reaches banbury 1 is: rotor speed 60 ± 15r/min is preferably 65 ± 3r/min, temperature control is 50 ± 10 DEG C preferably 45 ± 3 DEG C, ram piston pressure 0.6 ± 0.05MPa; Wherein material comprises matrix glue and compounding ingredient;
(2) the matrix glue weighed in step (1) is dropped in upstream banbury 1 the formation softened rubber of plasticating carrying out the preferred 35 ± 3s of 40 ± 10s, and then add compounding ingredient respectively and comprise carbon black N330, zinc oxide, anti-aging agent RD, plasticizer A and stearic acid SA and carry out mixing, compounding ingredient is fully mixed with softened rubber, floating weight 23 is elevated once when the sizing material temperature in banburying chamber 21 reaches 80 ± 5 DEG C, when the sizing material temperature in banburying chamber 21 reaches 95 ± 5 DEG C, the first mixed glue formed is drained in storaging bucket 8 by the lower top bolt 19 opening upstream banbury 1;
(3) the first mixed glue in storaging bucket 8 enters in the incorgruous two-rotor continuous mixer 5 in downstream by spout 14 under the effect of ram 7, and the rotating speed 30 ± 15r/min of setting mixing roll rotor 12 preferably 35 ± 3r/min carries out two-stage mixing; Setting mixing roll machine barrel 13 inside totally four sections of cooling duct temperature offered of turning left from the right side are respectively: 95 ± 5 DEG C, 85 ± 5 DEG C, 75 ± 5 DEG C and 65 ± 5 DEG C, the cooling duct temperature of setting mixing roll head 11 inside is 55 ± 5 DEG C, and mixing 5.5 ± 3min preferably forms semi-finished product film after 3.6 ± 0.5min and discharged by discharge gate 10;
(4) the semi-finished product film of discharge is carried out repeatedly after compressing tablet through mill of the prior art, add compounding ingredient in the factory formula of step (1) again and comprise accelerant NOBS and sulphur, make it fully mix by the mode of playing triangle bag, then carry out follow-up related process and test comparison analysis.
The factory formula of the elastomeric compound related in the present embodiment is:
The kneading device overall structure related in the present embodiment is divided into upstream banbury 1 and downstream incorgruous two-rotor continuous mixer 5 two large divisions, adopt the through connection of end face seal mode to realize being incubated temperature control function by storaging bucket 8 between the two, concrete structure comprises upstream banbury 1, No. I base 2, No. I frame 3, No. II base 4, the incorgruous two-rotor continuous mixer 5 in downstream, No. II frame 6, ram 7, storaging bucket 8 and No. II oil cylinder 9, No. I frame 3 and No. II frame 6 are fixedly connected on No. II base 4 respectively by bolt, No. I base 2 is bolted to connection the upstream banbury 1 just mixed for carrying out sizing material, the incorgruous two-rotor continuous mixer 5 in downstream is bolted and is arranged in No. I frame 3 and No. II frame 6 for carrying out two-stage mixing, the lower end of upstream banbury 1 is docked by through between storaging bucket 8 and the upper end of the incorgruous two-rotor continuous mixer in downstream 5, the upper end, left side of storaging bucket 8 and No. I base 2 are bolted, on the right side of it, upper end is bolted and is provided with No. II oil cylinder 9, No. II oil cylinder 9 lower end is connected with ram 7 by drive link, continous way two-stage mixing is carried out for the first mixed glue laminated of being discharged by upstream banbury 1 in storaging bucket 8 being entered in the incorgruous two-rotor continuous mixer 5 in downstream, the agent structure of the incorgruous two-rotor continuous mixer 5 in described downstream comprises discharge gate 10, mixing roll head 11, mixing roll rotor 12, mixing roll machine barrel 13, spout 14, No. I shaft coupling 15, No. I decelerator 16, No. II shaft coupling 17, No. I motor 18 and cooling duct 30, the left end of mixing roll head 11 offers discharge gate 10 for discharging obtained semi-finished product film, the right-hand member of mixing roll head 11 fixedly docks with the supporting mixing roll machine barrel 13 being provided with mixing roll rotor 12 in inside, spout 14 is offered above the right-hand member of mixing roll machine barrel 13, spout 14 eats the first mixed glue of discharging into upstream banbury 1 with through docking of storaging bucket 8 for the incorgruous two-rotor continuous mixer in downstream 5, the inside of mixing roll head 11 offers cooling duct 30 for controlling the temperature of mixing roll head 11, the inwall of mixing roll machine barrel 13 is turned left from the right side and is offered totally four sections of cooling ducts 30 successively and, for controlling the temperature of mixing roll machine barrel 13, select water as cooling medium in cooling duct 30, turn left from the right side No. I motor 18, No. II shaft coupling 17, No. I decelerator 16 of connecting successively and No. I shaft coupling 15 forms dynamical system, jointly for the incorgruous two-rotor continuous mixer 5 in downstream provides power.
The agent structure (as shown in Figures 2 and 3) of the banbury of upstream described in the present embodiment 1 comprises lower top bolt 19, closed-smelting machine rotor 20, banburying chamber 21, gallery ports 22, floating weight 23, No. I oil cylinder 24, No. III frame 25, No. III shaft coupling 26, No. II decelerator 27, No. IV shaft coupling 28 and No. II motor 29, banburying chamber 21 is bolted and is arranged on No. I base 2, offering on the left of No. III frame 25 can the gallery ports 22 of closing type structure, gallery ports 22 are through with banburying chamber 21, closed-smelting machine rotor 20 is provided with in banburying chamber 21, banburying chamber 21 top is bolted and is provided with No. III frame 25, No. III frame 25 is installed with No. I oil cylinder 24, No. I oil cylinder 24 lower end is connected with floating weight 23 by drive link, pressure during for ensureing that banbury works in banburying chamber 21, lower top bolt 19 is connected through the hinge on No. I base 2 for discharging, No. II motor 29, No. IV shaft coupling 28, No. II decelerator 27 that series connection successively of turning left from the right side is fixed on No. I base 2 and No. III shaft coupling 26 jointly composition dynamical system provide power for upstream banbury 1.
Embodiment 2:
The present embodiment, for all-steel radial tire tread glue formula, carries out comparative illustration by the tandem rubber compound continuous mixing method that relates in embodiment 1 and traditional mixer mixing method.
The concrete technology step of tradition mixer mixing method is:
(1) activity coefficient of 65 ± 3% is adopted, with the factory formula of elastomeric compound described in the concrete model of banbury and embodiment 1 for basis, calculate the quality of various material and weigh rear for subsequent use, the running parameter of setting banbury is: rotor speed 65 ± 3r/min, temperature control is 45 ± 3 DEG C, ram piston pressure 0.6 ± 0.05MPa;
(2) natural rubber weighed in step (1) dropped in banbury carry out plasticating of 35 ± 3s, and then add carbon black N330 respectively, zinc oxide, anti-aging agent RD, plasticizer A, stearic acid SA carry out mixing; When the elastomeric compound temperature in banburying chamber reaches 110 ± 3 DEG C and 120 ± 3 DEG C, each to rise and decline floating weight 1 time, make rubber compounding abundant, when the rubber compounding glue temperature in banburying chamber reaches 140 ± 3 DEG C, complete mixing lower top bolt of opening and discharge sizing material;
(3) sizing material of discharge is carried out repeatedly after compressing tablet through mill of the prior art, then add accelerant NOBS described in formula and sulphur makes it fully mix by the mode of playing triangle bag, then carry out follow-up related process and test comparison.
Traditional mixer mixing method described in the present embodiment is compared with tandem rubber compound continuous mixing method in embodiment 1, and production capacity obviously lacks advantage; The sizing material produced is all not as the sizing material that tandem rubber compound continuous mixing method in embodiment 1 is produced in hot strength, tearing strength and carbon black dispension degree, and concrete comparing result as Figure 4-Figure 6.
Claims (4)
1. a tandem rubber compound continuous mixing method, is characterized in that concrete technology step is as follows:
(1) activity coefficient of 65 ± 5% is adopted, with the factory formula of the concrete model of upstream banbury and elastomeric compound for basis, calculate the quality of various material and for subsequent use after accurate weighing, the running parameter that setting just mixes stage middle and upper reaches banbury is: rotor speed 60 ± 15r/min, temperature control is 50 ± 10 DEG C, ram piston pressure 0.6 ± 0.05MPa; Wherein material comprises matrix glue and compounding ingredient;
(2) the matrix glue weighed in step (1) is dropped into the formation softened rubber of plasticating carrying out 40 ± 10s in the banbury of upstream, and then the compounding ingredient added respectively except sulphur and promoter carries out mixing, floating weight is elevated once when the sizing material temperature in banburying chamber reaches 80 ± 5 DEG C, compounding ingredient and softened rubber are fully mixed, when the sizing material temperature in banburying chamber reaches 95 ± 5 DEG C, the first mixed glue formed is drained in storaging bucket by the lower top bolt opening upstream banbury;
(3) the first mixed glue in storaging bucket enters in the incorgruous two-rotor continuous mixer in downstream by spout under the effect of ram, and the rotating speed 30 ± 15r/min of setting mixing roll rotor carries out two-stage mixing; The inner totally four sections of cooling duct temperature offered of turning left from the right side of setting mixing roll machine barrel are respectively: 95 ± 5 DEG C, 85 ± 5 DEG C, 75 ± 5 DEG C and 65 ± 5 DEG C, the cooling duct temperature of setting mixing roll head inside is 55 ± 5 DEG C, forms semi-finished product film and discharged by discharge gate after mixing 5.5 ± 3min;
(4) the semi-finished product film of discharge is carried out repeatedly after compressing tablet through mill of the prior art, adding promoter and sulphur in the factory formula of elastomeric compound in step (1) again makes it fully mix by the mode of playing triangle bag, then carries out follow-up related process and test comparison analysis.
2. tandem rubber compound continuous mixing method according to claim 1, is characterized in that the compounding rubber that can be used for all-steel radial tire tread glue formula, meridian riding tire tread glue formula or oblique load-carrying tire carcass glue formula.
3. tandem rubber compound continuous mixing method according to claim 1, the kneading device overall structure that it is characterized in that realizing this compounding process is divided into the incorgruous two-rotor continuous mixer two parts of upstream banbury and downstream, adopt the through connection of end face seal mode to realize being incubated temperature control function by storaging bucket between the two, concrete structure comprises upstream banbury, No. I base, No. I frame, No. II base, the incorgruous two-rotor continuous mixer in downstream, No. II frame, ram, storaging bucket and No. II oil cylinder, No. I frame and No. II frame are fixedly connected on No. II base respectively by bolt, No. I base is bolted to connection the upstream banbury just mixed for carrying out sizing material, the incorgruous two-rotor continuous mixer in downstream is bolted and is arranged in No. I frame and No. II frame for carrying out two-stage mixing, throughly between the upper end by the incorgruous two-rotor continuous mixer in storaging bucket and downstream, the lower end of upstream banbury to dock, the upper end, left side of storaging bucket and No. I base are bolted, on the right side of it, upper end is bolted and is provided with No. II oil cylinder, No. II oil cylinder lower end is provided with ram by drive link anatomical connectivity, for the first mixed glue laminated of being discharged by upstream banbury in storaging bucket is entered in the incorgruous two-rotor continuous mixer in downstream to carry out continous way two-stage mixing, the agent structure of the incorgruous two-rotor continuous mixer in described downstream comprises discharge gate, mixing roll head, mixing roll rotor, mixing roll machine barrel, spout, No. I shaft coupling, No. I decelerator, No. II shaft coupling, No. I motor and cooling duct, the left end of mixing roll head offers discharge gate for discharging obtained semi-finished product film, the right-hand member of mixing roll head fixedly docks with the supporting mixing roll machine barrel being provided with mixing roll rotor in inside, spout is offered above the right-hand member of mixing roll machine barrel, spout eats the first mixed glue of discharging into upstream banbury with through docking of storaging bucket for the incorgruous two-rotor continuous mixer in downstream, the inside of mixing roll head offers cooling duct for controlling the temperature of mixing roll head, the inwall of mixing roll machine barrel is turned left from the right side and is offered totally four sections of cooling ducts successively and, for controlling the temperature of mixing roll machine barrel, temperature requiredly select oil or water as cooling medium to expand temperature-control range in cooling duct according to difference refining glue formula, turn left from the right side No. I motor of connecting successively, No. II shaft coupling, No. I decelerator and No. I shaft coupling forms dynamical system, jointly for the incorgruous two-rotor continuous mixer in downstream provides power.
4. tandem rubber compound continuous mixing method according to claim 3, it is characterized in that the agent structure of upstream banbury comprises lower top bolt, closed-smelting machine rotor, banburying chamber, gallery ports, floating weight, No. I oil cylinder, No. III frame, No. III shaft coupling, No. II decelerator, No. IV shaft coupling and No. II motor, banburying chamber is bolted and is arranged on No. I base, offering on the left of No. III frame can the gallery ports of closing type structure, gallery ports and banburying chamber through, closed-smelting machine rotor is provided with in banburying chamber, banburying chamber top is bolted and is provided with No. III frame, No. III frame is installed with No. I oil cylinder, No. I oil cylinder lower end is connected with floating weight by drive link, pressure during for ensureing that banbury works in banburying chamber, lower top bolt is connected through the hinge on No. I base for discharging, turning left from right side series connection is successively fixed on No. II motor No. I base, No. IV shaft coupling, No. II decelerator and No. III shaft coupling and jointly forms dynamical system for upstream banbury and provide power.
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| CN111195994A (en) * | 2020-01-09 | 2020-05-26 | 浦林成山（青岛）工业研究设计有限公司 | Final mixing series connection homogenizing rubber mixing process and system |
| CN111763376A (en) * | 2020-07-06 | 2020-10-13 | 安徽中鼎橡塑制品有限公司 | Thermoplastic vulcanized elastomer for automobile sealing strip and preparation method thereof |
| 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 |
| CN113459320A (en) * | 2021-06-22 | 2021-10-01 | 东莞市华岳导热科技有限公司 | Preparation method of heat conducting sheet |
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