CN106273043B - A kind of calendering process for large capacity mixer production finished composition - Google Patents
A kind of calendering process for large capacity mixer production finished composition Download PDFInfo
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- CN106273043B CN106273043B CN201610726279.0A CN201610726279A CN106273043B CN 106273043 B CN106273043 B CN 106273043B CN 201610726279 A CN201610726279 A CN 201610726279A CN 106273043 B CN106273043 B CN 106273043B
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- kneaded
- seconds
- revolving speed
- drug
- sizing material
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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
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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
A kind of calendering process for large capacity mixer production finished composition includes the following steps: that (1) charging is kneaded 30 seconds or so, using the high revolving speed of 35-40rpm, generates big shearing force, sizing material is enable to flow faster in mixing chamber, accelerate material feeding process；(2) it is kneaded 20-30 seconds, using revolving speed high in 30rpm or so, sizing material flowing velocity is fast, and the mixing of drug and sizing material is accelerated to disperse；(3) it is kneaded 15-20 seconds, using the general revolving speed of revolving speed 25rpm or so, control heating disperses drug；(4) it is kneaded later stage, is kneaded 15 seconds or so, using the slow-speed of revolution of 15-20rpm or so, heating is made to become relatively slow, guarantees that mixing time to be kneaded sufficiently, drug is uniformly dispersed, and rubber compounding is uniform.
Description
Technical field
It is especially a kind of to produce finished composition for large capacity mixer the present invention relates to rubber mixing-milling technique technical field
Calendering process.
Background technique
It is exactly uniformly to mix masterbatch with compounding agents such as vulcanizing agent (sulphur), promotor, antiscorching agent that finished composition, which is kneaded,
Rubber processing process together.Different from masterbatch mix technique, finished composition is kneaded because of vulcanizing agent to be added and promotion
This 2 class of agent can make rubber that the compounding agent of vulcanization reaction occur, if being kneaded operation mode production eventually using traditional one-part form
Vulcanizing agent and promotor can be added in mixer in the final stage of mixing when refining glue, but need to use at this time to be kneaded at a slow speed
Strict control melting temperature is no more than 120 DEG C；Or the masterbatch that completion is kneaded in mixer is dumped on open mill,
Then vulcanizing agent and promotor are individually put and is added on a mill, equally, the temperature of sizing material can not be more than 120 DEG C at this time.
By this one-part form be kneaded operation mode production finished composition one side production efficiency it is not high, exist simultaneously sizing material be kneaded when temperature compared with
There is the possibility that incipient scorch is extremely expected, causes the waste of finished composition, increase production cost in height.
The processing of finished composition at present mostly uses greatly two-period form to be kneaded operation mode, i.e. vulcanizing agent and rush is not added in first segment mixing
Into agent, vulcanizing agent and promotor are mixed into again when second segment is kneaded.To prevent sizing material incipient scorch or bloom situation occur, thus it is mixed
Temperature control requirement when refining is usually no more than 110 DEG C generally at 105 DEG C or so, using common sulphur, this temperature condition
It must be strictly controlled, sizing material incipient scorch otherwise will occur.Therefore 20 are all used to turn left right lower turn when most of finished composition is kneaded
Speed reaches dump control temperature condition to prevent from heating up comparatively fast in mixing process.The finished composition of normal capacity (200kg or so)
Certain variable-speed calendering technique is also usually taken in mixing, is generally divided into two stages, first stage 25-30rpm, second stage
15-20rpm.But this technique is normally only used for the mixer of low capacity, is not used for the whole refining of large capacity mixer (300kg or more)
Glue is kneaded.Slow down heat using such slow-speed of revolution and reach to increase mixing time and be kneaded uniform purpose, due to mixer
Capacity is big, and revolving speed is relatively low to cause shearing force weak and sizing material is bad in the mobility of mixing chamber, and it is uneven to be easy to produce small medicine dispersion
Or there is dead angle to cause to be kneaded unevenness in partial region, finished composition curing curve difference is big, and this method production efficiency is low
Under, it is difficult to meet existing production needs.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the present invention provides one kind to produce finished composition for large capacity mixer
Calendering process, produce that mixing that refining eventually is also easy to produce is uneven or heating is too fast leads to incipient scorch using large capacity mixer to overcome
Situation to can be applied to produce using large capacity mixer production finished composition, and greatly improves production efficiency.
A kind of calendering process for large capacity mixer production finished composition of the invention uses following technical scheme:
A kind of calendering process for large capacity mixer production finished composition, includes the following steps:
(1) charging is kneaded 30 seconds or so, using the high revolving speed of 35-40rpm, is generated big shearing force, is made sizing material in kneading chamber
It is interior to flow faster, accelerate material feeding process；
(2) it is kneaded 20-30 seconds, using revolving speed high in 30rpm or so, sizing material flowing velocity is fast, accelerates drug and sizing material
Mixing dispersion；
(3) it is kneaded 15-20 seconds, using the general revolving speed of revolving speed 25rpm or so, control heating disperses drug；
(4) it is kneaded later stage, is kneaded 15 seconds or so, using the slow-speed of revolution of 15-20rpm or so, heating is made to become relatively slow,
Guarantee that mixing time to be kneaded sufficiently, drug is uniformly dispersed, and rubber compounding is uniform.
Further, the high revolving speed of 35rpm, the middle slow-speed of revolution using 20rpm or so of step (4) are used in step (1).
Further, the drug is vulcanizing agent and promotor.
A kind of calendering process for large capacity mixer production finished composition of the invention, uses multistep variable-speed calendering work
Skill, 3 pressure-raising floating weights in mixing process, due to can effectively control temperature rise and can guarantee rubber compounding uniformity and because
This will use large capacity mixer production finished composition to be possibly realized, and the performance indexes of sizing material is made to have 5% or so
It improves, while the porosity 20% for extruding component can be reduced.In addition, production capacity is significantly due to using large capacity mixer
It improves, bicycle sizing material average weight 365kg, 145 vehicle of split run yield, 53 tons of production capacity, be common low capacity mixer split run production capacity
1.65 times of (32 tons).And personnel depaly is constant, plant designing is basically unchanged, and substantially increases production while improving quality
Efficiency.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is state of the art variation diagram of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
Personnel's every other embodiment obtained under the premise of being not necessarily to creative work, shall fall within the protection scope of the present invention.
In a kind of calendering process for large capacity mixer production finished composition of the invention, mixing machine host uses Japan
The BB430 mixer of refreshing steel is kneaded chamber vol 440L, using 4WN high efficient cryogenic shearing rotor, since sizing material bicycle weight exists
350-380kg, common XK660 open mill have been unable to satisfy the requirement of bottom sheet, therefore to be configured with 3 XK810 types big for downwind scheme
Diameter open mill cooperates mixer, and using novel multistep variable-speed calendering technique, sizing material performance indexes reaches technical standard
It is required that.
In a preferred embodiment, the step of calendering process and parameter in following table according to being set:
| Walk sequence | Condition | Execute movement | Time s | Temperature DEG C | Revolving speed rpm | Pressure bar |
| 1 | Add sizing material | 35 | 5.5 | |||
| 2 | Press floating weight | |||||
| 3 | It keeps | 30 | ||||
| 4 | Rise floating weight | 30 | ||||
| 5 | Press floating weight | |||||
| 6 | It keeps | 20 | ||||
| 7 | Rise floating weight | 25 | ||||
| 8 | Press floating weight | |||||
| 9 | It keeps | 20 | ||||
| 10 | Rise floating weight | 20 | ||||
| 11 | Press floating weight | 4.5 | ||||
| 12 | It keeps | 15 | ||||
| 13 | Time or temperature | Rise floating weight | 160 | 102 | ||
| 14 | It starts discharging bin gate | |||||
| 15 | Press floating weight | 35 | ||||
| 16 | It keeps | |||||
| 17 | Formula terminates |
Shown in attached drawing 1, curve 1: temperature, temperature of the sizing material in mixing process；
Curve 2: floating weight position characterizes floating weight the location of in mixing process；
Curve 3: ram piston pressure, floating weight are applied to the pressure on sizing material；
Curve 4: revolving speed, the speed of rotor；
Curve 5: power, the display of motor actual power size in mixing process；
Curve 6: energy, display are kneaded the electric energy of consumption.
Specifically, ginseng see the above table and attached drawing 1 shown in, the calendering process of the invention, can be divided into following four step
It is rapid:
First step, charging are kneaded 30 seconds or so, using the high revolving speed of 35-40rpm, generate big shearing force, sizing material is made to exist
Mixing chamber can flow faster, accelerate material feeding process；
Second step is kneaded 20-30 seconds, and using revolving speed high in 30rpm or so, sizing material flowing velocity is fast, accelerates drug
Mixing with sizing material disperses；
Third step: being kneaded 15-20 seconds, and using the general revolving speed of revolving speed 25rpm or so, control heating disperses drug；
Four steps: being kneaded later stage, is kneaded 15 seconds or so, using the slow-speed of revolution of 15-20rpm or so, becomes heating
It is slower, guarantee that mixing time to be kneaded sufficiently, the drug rubber compounding that is uniformly dispersed is uniform.
It is further preferred that ginseng is seen the above table, the high revolving speed of 35rpm is used in first step, uses 20rpm in four steps
The slow-speed of revolution of left and right.
In addition, according to the temperature rise situation of different sizing materials, it can be in each step appropriate adjustment pressure retention time and floating weight pressure
Power.
The calendering process technical effect of the invention are as follows: use multistep variable-speed calendering technique, 3 pressure-raisings in mixing process
Floating weight, due to can effectively control temperature rise and can guarantee therefore the uniformity of rubber compounding will simultaneously use large capacity mixer
Production finished composition is possibly realized, and makes the performance indexes of sizing material have 5% or so raising, while can reduce extrusion
The porosity 20% of component.In addition, production capacity greatly improves due to using large capacity mixer, bicycle sizing material average weight
365kg, 145 vehicle of split run yield, 53 tons of production capacity, be 1.65 times of common low capacity mixer split run production capacity (32 tons).And personnel
Configure constant, plant designing is basically unchanged, and substantially increases production efficiency while improving quality.
It should be understood that although carrying out particularly shown and description to the present invention with reference to its illustrative embodiment,
It should be understood by those skilled in the art that without departing substantially from by spirit and model of the invention as defined in the claims
Under conditions of enclosing, any combination of various embodiments can be carried out in the variation for wherein carrying out various forms and details.
Claims (1)
1. a kind of calendering process for large capacity mixer production finished composition, which comprises the steps of:
(1) floating weight is pressed, charging is kneaded 30 seconds, pressure 5.5bar, using the high revolving speed of 35rpm, generates big shearing force, make sizing material
It can be flowed faster in mixing chamber, accelerate material feeding process；
(2) floating weight is pressed after rising floating weight, is kneaded 20-30 seconds, pressure 5.5bar, revolving speed high in 30rpm, sizing material flowing are used
Speed is fast, and the mixing of drug and sizing material is accelerated to disperse；The drug is vulcanizing agent and promotor；
(3) floating weight is pressed after rising floating weight, is kneaded 15-20 seconds, pressure 5.5bar, using the revolving speed of revolving speed 25rpm, control is risen
Temperature disperses drug；
(4) it is kneaded later stage, presses floating weight after rising floating weight, is kneaded 15 seconds, pressure 4.5bar, using the slow-speed of revolution of 20rpm,
So that heating is become relatively slow, guarantees that mixing time to be kneaded sufficiently, drug is uniformly dispersed, and rubber compounding is uniform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610726279.0A CN106273043B (en) | 2016-08-25 | 2016-08-25 | A kind of calendering process for large capacity mixer production finished composition |
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| CN201610726279.0A CN106273043B (en) | 2016-08-25 | 2016-08-25 | A kind of calendering process for large capacity mixer production finished composition |
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| CN106273043A CN106273043A (en) | 2017-01-04 |
| CN106273043B true CN106273043B (en) | 2019-04-09 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110713663B (en) * | 2019-11-11 | 2021-11-12 | 永一橡胶有限公司 | Preparation method of tire curing bladder |
| CN111571839A (en) * | 2020-05-09 | 2020-08-25 | 山东玲珑轮胎股份有限公司 | Masterbatch mixing process |
| CN113059711B (en) * | 2021-03-02 | 2022-08-09 | 建新赵氏科技股份有限公司 | Method for mixing natural rubber by using Farrel K6 internal mixer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5108188A (en) * | 1990-02-28 | 1992-04-28 | Continental Aktiengesellschaft | Method for producing rubber mixtures |
| CN1861355A (en) * | 2006-05-26 | 2006-11-15 | 刘树炯 | Banbury variable-speed calendering technique |
| CN104129004A (en) * | 2014-06-24 | 2014-11-05 | 特拓(青岛)轮胎技术有限公司 | Mixing technology capable of increasing production capacity of rubber compound |
-
2016
- 2016-08-25 CN CN201610726279.0A patent/CN106273043B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5108188A (en) * | 1990-02-28 | 1992-04-28 | Continental Aktiengesellschaft | Method for producing rubber mixtures |
| CN1861355A (en) * | 2006-05-26 | 2006-11-15 | 刘树炯 | Banbury variable-speed calendering technique |
| CN104129004A (en) * | 2014-06-24 | 2014-11-05 | 特拓(青岛)轮胎技术有限公司 | Mixing technology capable of increasing production capacity of rubber compound |
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| CN106273043A (en) | 2017-01-04 |
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