CN106738763A - The radial oriented enhancing annular tire tread extrusion molding presulfurization integrated device of chopped fiber - Google Patents
The radial oriented enhancing annular tire tread extrusion molding presulfurization integrated device of chopped fiber Download PDFInfo
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- CN106738763A CN106738763A CN201611166584.5A CN201611166584A CN106738763A CN 106738763 A CN106738763 A CN 106738763A CN 201611166584 A CN201611166584 A CN 201611166584A CN 106738763 A CN106738763 A CN 106738763A
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- chopped fiber
- radial oriented
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- 239000000835 fiber Substances 0.000 title claims abstract description 62
- 238000001125 extrusion Methods 0.000 title claims abstract description 42
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 10
- 238000004513 sizing Methods 0.000 claims abstract description 117
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000003292 glue Substances 0.000 claims description 24
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 230000033001 locomotion Effects 0.000 abstract description 6
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 238000004073 vulcanization Methods 0.000 description 6
- 238000009418 renovation Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 208000010727 head pressing Diseases 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000005486 sulfidation Methods 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
- 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
- B29C48/50—Details of extruders
- B29C48/695—Flow dividers, e.g. breaker plates
-
- 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
- B29C48/30—Extrusion nozzles or dies
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/87—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
- B29L2030/002—Treads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention announces a kind of radial oriented enhancing annular tire tread extrusion molding presulfurization integrated device of chopped fiber,Including entrance,Changeover portion,Shunting section,Sizing section and prevulcanisation-devices,Shunting section inner cylinder runner first passes through 90 degree of deformations,The shunting post that a cross section is hexagon is provided centrally with shunting section runner after deformation,Shunt the end connection sizing section of post,Sizing section is by upper,The lower composition of die cavity between stereotype plate and plate,Sizing section inner flow passage is with center as starting point,Sizing material is extruded along six runners of iso-cross-section,Runner mouthful is relative with hexagon side,It is the 1/2 of cylindrical structural cross-sectional area to shunt the cross-sectional area of post,Sizing section fit on has the prevulcanisation-devices in piecemeal tyre tread face,The chopped fiber direction of motion changes the technical problem for causing the degree of orientation to decline when the present apparatus overcomes that chopped fiber sizing material vulcanizes in tyre adjustable die in the prior art,Improve the radial oriented degree of fiber reinforcement tread rubber,And propose a kind of radial oriented method of new chopped fiber.
Description
Technical field
Tire tread extrusion molding presulfurization integrated device is remanufactured the present invention relates to fiber-wall-element model enhancing, especially for
In the radial oriented enhancing annular tire tread extrusion molding presulfurization integrated device of chopped fiber
Background technology
With developing rapidly for auto industry, the junked tire annual production of China is also global most.Junked tire conduct
Solid waste, is a kind of " black pollution ".How to clean and the high-valued junked tire that recycles be as a significant problem,
Currently, junked tire is circulated has the ways such as tyre rebuilding, production rubber powder, production reclaimed rubber, damaged tire cracking using main
Footpath.Wherein, tyre rebuilding is the preferred manner that junked tire is recycled, and has the advantages that most environmentally friendly, most save resources, into
For the junked tire that developed country generally uses recycles mode.Generally often renovate once, tire can be obtained equivalent to new
The service life of tire 60%~90%, the performance such as wear-resisting, safe nor affects on it and normally uses.In raw material and energy resource consumption side
Face, retreads be respectively manufacture same specification new tyre 15%~30% and 20%~30%, and price be only 20%~
50%, show that cut-fiber reinforcement rubber composite material is the ideal material for preparing high-performance retreads by substantial amounts of research
One of.Chopped fiber is added in sizing material, and chopped fiber is suitably oriented in sizing material, the rolling resistance of tire can be made substantially to drop
It is low, it was reported that for car tire, rolling resistance reduction by 5%~7% can save fuel 1%；For load-carrying tire, rolling resistance drop
It is low by 2%~4%, fuel 1% can be saved.And in each part of tire, the rolling resistance that tyre surface is produced occupies total rolling and hinders
The 49% of power.Therefore, the rolling resistance of tyre surface is effectively reduced, important influence will be produced to energy saving, reduction discharge, this is right
Have for the increasingly deficient China of petroleum resources and have very great significance；The tear resistance of tyre surface, wearability, anti-collapsing use up block
Performance is improved, and can make tire lightweight, and also can make traveling lower noise, improves the comfortableness of seating, so as to meet wide
The consumption demand of the big people and meet national energy-saving, emission reduction, the production requirement of environmental protection.
CN101352927A discloses a kind of method for extruding and forming short fiber reinforced-rubber composite material in radial direction, will first contain
The rubber molten mass for having chopped fiber carries out extrusion processing in an extruder；Screw rod end in extruder barrel, rubber is squeezed into
Axial orientation runner, is orientated using sizing material flow direction, realizes that chopped fiber axial direction takes in the axial orientation runner of head
To；By the resistance dam that the sizing material after axial orientation is formed under extrusion pressure effect by the thickness by contracted channel, utilize
There is rolling during rapid expansion after resistance dam in sizing material and incline in the characteristics of rubber extruding expands, the chopped fiber in sizing material
Tiltedly；Sizing material after expansion continues to flow along runner, in the centre and marginal portion of runner because velocity gradient aggravates inclination, short fibre
Radial oriented increase is tieed up, and and then is realized radial oriented.
CN101337435A discloses a kind of radial extruding forming device of cut-fiber reinforcement rubber composite material, its flange
Eight screwed holes are formed with front, with eight double threaded screws and nut by flange and changeover portion, resistance dam supporting plate, stereotype plate, machine
Head pressing plate is linked together successively in order, and excessive glue valve is housed directly over flange, and underface bores a screwed hole to install pressure biography
Sensor；A pair of resistance dam regulating blocks are placed in the middle of resistance dam supporting plate, resistance dam regulating bolt one end is fixed with resistance dam regulating block, the other end
It is connected through a screw thread and is connected with resistance dam supporting plate, resistance dam regulating bolt control resistance dam gap；A pair of sizings are placed in the middle of stereotype plate
Regulating block come adjust sizing gap, sizing regulating block be clipped between resistance dam supporting plate and head pressing plate and be fixed by screw.
CN102431145A discloses a kind of device for performing radial orientation molding on short fibers of tire tread rubber, is adjusted by head pressure
Bolt, head pressure adjustment valve and filter glue plate composition head entrance, by orientation gap regulating block, orientation clearance adjusting screw,
Bypass type block and orientation gap gripper shoe groups are radially orientated section, by gap adjustment block of shaping, sizing clearance adjusting screw and fixed
Type gap gripper shoe groups into sizing section；Eight through holes are evenly arranged on ring flange, respectively with eight bolts are by ring flange and extrude
Machine fuselage is connected, and head entrance is connected with ring flange and is fixed with reinforcement gusset, and heating cooling is formed with head entrance
Water circulation channel, its arrival end is formed with worry offset plate, head pressure regulating valve respectively with head pressure regulating bolt and head entrance
Duan Xianglian.
All it is the characteristic using rubber extruding expansion in the radial oriented method of foregoing invention patent middle short fiber and principle,
The chopped fiber in tread rubber is rolled along expansion direction in sizing material expansion process, show inclined trend, finally
Make chopped fiber radial oriented；But allow to that extrusion sizing material is preferably radial oriented, but general in the prior art squeeze
Go out adhesive tape to be vulcanized, extruder need to connect tyre adjustable die by pipeline, and extrusion adhesive tape is by tire mould
Tool die sleeve or upper and lower mould, slowly full of whole tire-mold die cavity, the chopped fiber in its sizing material is in tyre adjustable die motion side
To changing, its state of orientation changes, and without in all senses in actual production, may not apply to large-scale industry
Production, and original radial oriented head is larger to requirement on machining accuracy, and manufacturing cost is higher.
The content of the invention
The method and principle radial oriented in order to change traditional chopped fiber, and overcome chopped fiber sizing material in the prior art to exist
The technical problem that the chopped fiber direction of motion changes when vulcanizing in tyre adjustable die, the invention provides a kind of chopped fiber footpath
To orientation enhancing annular tire tread extrusion molding presulfurization integrated device, including entrance, changeover portion, shunting section, sizing section, it is special
Levy and be：Changeover portion end is connected with shunting section, and shunting section inner cylinder runner first passes through 90 degree of deformations, the shunting section after deformation
The shunting post that a cross section is hexagon is provided with runner, shunting post is fixed on sizing section center, and sizing section passes through hexagonal spiral shell
Post is connected with shunting section, shunts post and sizing section core rounding off, and the end for shunting post connects section of shaping, and sizing section is total to
There are six uiform section runners, runner mouthful is relative with hexagon side, it is cylindrical structural cross-sectional area to shunt the cross-sectional area of post
1/2, stereotype plate fit on has the prevulcanisation-devices in piecemeal tyre tread face, and prevulcanisation-devices are embedding with upper stereotype plate, lower stereotype plate
Close；The interior shunting column top of shunting section is hexagonal pyramid, is easy to sizing material to be split post and uniformly guides in extremely each runner of sizing section, transition
Section end is connected with shunting section, and shunting section inner cylinder runner first passes through 90 degree of deformations, and longitudinal direction is smoothly transitted into by continental extrusion
Extrusion, prevents rubber from producing glue to burn phenomenon because of buildup in extrusion.
Preferably：The integrated device is including the lower mould that recaps, recap mold and shelves offset plate, renovates tire
The inside and outside two-layer of face mold point, the shelves offset plate insertion recaps between mold ectonexine, is distributed in six streams of sizing section
Road junction is extended in the mold for recapping, and the mold internal layer that recaps is six runners, with sizing six runner phases of section
Even, shelves offset plate can close six runners downwards, and outer layer is annular precured tread die cavity, and recap upper and lower mould matched moulds
When die cavity be highly 9/10 of the height of die cavity between upper and lower stereotype plate, precured tread can finally move tyre surface with piecemeal
Go out.
Preferably：Entrance is a flange, and the flange center position is sizing material entrance, sizing material entrance and changeover portion
Runner is communicated.
Preferably：Entrance is pyramidal structure, and changeover portion is cylindrical structural.
Preferably：Sizing section inner flow passage with center as starting point, along six runners of iso-cross-section extrude, every by sizing material
The angle at runner center is 60 degree, and the height of die cavity is to be full of the 1/4 of shunting section flow diameter entirely between upper and lower stereotype plate, this
When, die swell phenomenon will not occur when sizing material is from changeover portion to sizing section transition, so as to be consistent machine direction as far as possible.
Preferably：Changeover portion is equipped with temperature sensor and pressure sensor on flow passage area, can be sent out with monitor in real time
The temperature and pressure of sizing material in bright device.
Preferably：Changeover portion top sets the excessive glue device of connection runner, and excessive glue device includes excessive glue valve and matches somebody with somebody therewith
The regulating bolt of conjunction.
Preferably：Cooling water hole is opened up on entrance, changeover portion, shunting section.
Preferably：Sizing section is made up of die cavity between upper and lower stereotype plate and plate.
Annexation between each part is connected for flange with extruder, entrance, changeover portion and shunting section import and goes out
The relevant position of mouth opens up screwed hole, and the screwed hole in horizontal one end of shunting section is connected by stud with flange, by nut
Tighten.Sizing upper and lower two parts of section open up screwed hole respectively, and the bottom correspondence position open-blind hole of shunting section will with hexagon socket head cap screw
Shunting section is connected with sizing section and tightens.
Apparatus of the present invention orientation principle：Extruder is located at the surface of annular tire tread prevulcanisation-devices, sizing section insertion
Matching interior with vulcanization plant sizing stock, sizing material is extruded along extrusion device from sizing section surrounding, when chopped fiber sizing material
When flowing through the uniform constant runner of basal area, its VELOCITY DISTRIBUTION primarily forms Shearing Flow than shallower, thus chopped fiber be along
Extrusion direction orientation, when chopped fiber is extruded at the center of annular prevulcanisation-devices to surrounding, completes the footpath of chopped fiber tread rubber
To orientation.
The present invention has advantages below compared with prior art：One is short fiber orientation principle simple, by it is most common from
One end level extrusion makes into uniformly to be extruded to surrounding from center, and it is pre- cleverly to apply to annular tire tread by the change of extrusion way
In vulcanization plant, the degree of orientation of fiber is improved；When overcoming that chopped fiber sizing material vulcanizes in tyre adjustable die in the prior art
The technical problem that the chopped fiber direction of motion changes two is invention device small volume, simple structure, to operating personnel's technology water
It is flat require it is relatively low, so as to ensure that the quality stability of extruded tread sizing material is good；Three can be by shape section partial replacement, can be with root
According to the size and the suitable sizing section of requirement design of annular tire tread prevulcanisation-devices, different processing requests, and structure are met
Simply, high-precision processing cost is reduced, is suitable for industrialized production, it is economical, it is convenient, it is practical.
Brief description of the drawings
Fig. 1 is main sectional view of the invention；
Fig. 2 is shunting post and lower stereotype plate top view of the invention；
Fig. 3 is principle schematic diagram. of the invention；
Fig. 4 is shunting post of the invention and the mold top view that recaps；
1 flange, 2 excessive glue valve regulation bolts, 3 excessive glue valves, 4 temperature sensors, 5 changeover portions, 6 shunting sections, 7 nuts, 8 spiral shells
Post, 9 pads, stereotype plate on 10,11 recap lower mould, 12 recap mold, 13 grades of offset plates, 14 times stereotype plates, 15
Shunting post, 16 hexagon socket head cap screws, 17 pressure sensors, 18 entrances.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, being filled the invention provides the radial oriented enhancing annular tire tread extrusion molding presulfurization one of chopped fiber
Put, including entrance 18, changeover portion 5, shunting section 6, sizing section, the end of changeover portion 5 is connected with shunting section 15, the inner circle of shunting section 6
Pipe running system first passes through 90 degree of deformations, and the shunting post 15 that a cross section is hexagon is provided with the shunting section runner after deformation,
Shunting post 15 is fixed on sizing section center, and sizing section is connected by hexagonal double-ended bolt with shunting section 6, shunts post 15 with sizing section center
Partly round transition, shunts the end connection sizing section of post 15, and sizing section has six uiform section runners, runner mouthful and hexagon
Side is relative, and it is the 1/2 of cylindrical structural cross-sectional area to shunt the cross-sectional area of post, because the too thick shearing that can cause wall of sizing material is made
With that can decline, degree of orientation can be caused to reduce, therefore the corresponding polygon edge of corresponding shunting post 15 (stream of shaping under this ratio
Road width) chopped fiber sizing material extrudes radial oriented effect preferably, and under sizing material thrust, sizing material is from centrally along sizing section runner
Extruded to surrounding.Stereotype plate fit on has a prevulcanisation-devices in piecemeal tyre tread face, prevulcanisation-devices and upper stereotype plate 10, under
Stereotype plate 14 is fitted together to；The top of shunting post 15 is hexagonal pyramid in shunting section, and uniformly guiding is each to sizing section to be easy to sizing material to be split post
In individual runner, the end of changeover portion 5 is connected with shunting section 6, and the inner cylinder runner of shunting section 6 first passes through 90 degree of deformations, by laterally squeezing
Go out and be smoothly transitted into longitudinal extrusion, prevent rubber from producing glue to burn phenomenon because of buildup in extrusion.
Such as Fig. 1, shown in 2,4, the integrated device is including the lower mould 11 that recaps, recap mold 12 and shelves glue
Plate 13, two-layer inside and outside 12 points of the mold that recaps, the insertion of shelves offset plate 13 recaps between the ectonexine of mold 12,
It is distributed in sizing section six runners mouthful to extend in the mold 12 for recapping, the internal layer of mold 12 that recaps is six streams
Road, is connected with sizing six runners of section, and shelves offset plate 13 can close six runners downwards, and outer layer is annular precured tread type
Chamber, recap upper and lower mould matched moulds when die cavity be highly 9/10 of the height of die cavity between upper and lower stereotype plate.Due to receiving
The limitation of sulfuration process, both height can not possibly be the same, therefore sizing material being capable of maximum limit when die cavity is entered under this height ratio
The holding extruded tread chopped fiber of degree is radial oriented, and can be maximally maintained extrusion capacity, it is necessary to illustrate, to enter one
Step strengthens the radial oriented degree of sizing material, and sizing section runner mouthful can be multiple, and the corresponding section of shunting post 15 is alternatively polygon
Tee section, shunting post 15 is polygon pyramid, and shelves offset plate 13 also correspondingly increases.
The runner of entrance 18 is gradually tapered up, and the top of entrance 18 sets the excessive glue device of connection runner, excessive glue device bag
Include excessive glue valve 3 and matched regulating bolt 8.
Changeover portion 5 is equipped with temperature sensor and pressure sensor on flow passage area, can be with monitor in real time invention device
The temperature and pressure of sizing material.
Entrance 18 and changeover portion 5, open up cooling water hole on shunting section 6, entrance is pyramidal structure, and changeover portion is cylinder
Shape structure.
Sizing section is made up of die cavity between upper and lower stereotype plate and plate.
Shunting post 15 and sizing section core rounding off, prevent rubber from producing glue to burn because of buildup in extrusion
Phenomenon.
As shown in Fig. 2 sizing section inner flow passage is with center as starting point, sizing material is extruded along six runners of iso-cross-section, often
The angle at bar runner center is 60 degree, and the height of die cavity is to be full of the 1/4 of shunting section flow diameter entirely between upper and lower stereotype plate,
Now, sizing material from changeover portion to sizing section transition when die swell phenomenon will not occur so that as far as possible make machine direction keep one
Cause.
Annexation between each part is connected for flange 1 with extruder, and entrance 18, changeover portion 5 and shunting section 15 enter
The relevant position of mouth and outlet opens up screwed hole, and the screwed hole in horizontal one end of shunting section 15 is connected by stud with flange 1,
By nut screwing clamping.Sizing upper and lower two parts of section open up screwed hole respectively, the bottom correspondence position open-blind hole of shunting section 6, with interior
With sizing section be connected shunting section and tighten by hex bolts.
Its annexation is that bolt connection is leaned in the front end of flange 1 with cross-head, and rear end links together with entrance 15,
The top of entrance 15 is provided with excessive glue valve, and head internal pressure can be adjusted by adjusting excessive glue valve regulation bolt when head pressure is larger
Power, to ensure sizing material quality and maintained equipment normal work.Temperature sensor 4, pressure sensor 14 are fixed on changeover portion 5,
Real-time monitoring is carried out to the temperature and pressure in aligning device, cooling water hole is opened on entrance 15, changeover portion 5 and shunting section 6,
The flowing temperature of sizing material is controlled by external attemperating unit.After sizing material enters into shunting section, extrusion direction becomes vertical by level,
Sizing section is flowed into through shunting post 12, extrusion direction is extruded from the middle of sizing section from becoming level vertically to surrounding.
The present invention is transmitted to the connected lift of extruder using the pressure sensor in prevulcanisation-devices in the prior art
Control system, elevator control system vertically moves up extruder, for industrialized production.
Apparatus of the present invention orientation principle：As shown in figure 3, extruder is located at the surface of annular tire tread prevulcanisation-devices,
Sizing section insertion is matching interior with vulcanization plant sizing section, and sizing material is extruded along extrusion device from sizing section surrounding, when
When short fibres glue stream is through basal area uniformly constant runner, its VELOCITY DISTRIBUTION primarily forms Shearing Flow than shallower, therefore short
Fiber is to be orientated along extrusion direction, when chopped fiber is extruded at the center of annular prevulcanisation-devices to surrounding, completes chopped fiber
Prolong the radial oriented of tread rubber, after the completion of sulfidation, machine movement extruder rises it, and recap mold 12
The fiber delicate flavour that is formed of internal layer be not orientated vulcanization internal layer and be carried over, it is radial oriented that the die cavity of outer layer and the inside forms chopped fiber
Prevulcanized tire tread rubber.
To further illustrate technique effect of the invention, the present apparatus is extruded the radial oriented renovation tire of chopped fiber of presulfurization
Wear test is carried out with the vulcanization tyre surface for being not added with chopped fiber, this test is carried out by the cooperation of Qingdao company, precured tread is entered
Row processing, and finished product tire is made, the finished product tire of two kinds of short fiber orientations of 18R24.5 and 14R24 is produced altogether, corresponding is general
Logical renovation tire enters Mobile state test；Container crane from Qingdao harbour periphery carries out actual pavement abrasion test, 16
Carried out on square kilometre road surface, last test its remaining precured tread thickness：14R, the initial pattern depth of tire is 16mm, is hung
Car commonly renovates tire for 8.1mm, short fiber orientation renovation tire are 12.7mm after travelling 442 hours；The initial pattern depth of 18R tires
It is 18mm, after crane is travelled 570 hours：Common renovation tire is 6.4mm, short fiber orientation renovation tire is 10.6mm.
The expressing technique flow of the radial oriented enhancing annular tire tread extrusion molding presulfurization integrated device of the chopped fiber is as follows：
1st, the tire tread glue that remanufactures containing chopped fiber is added in cold feed extruder, extruder is XJW60-200,
Screw speed is set to 15 revs/min, and by rotation and the shearing of screw rod, realization remanufactures the extrusion processing of tire tread compound
Shaping；
2nd, pressure in head is adjusted by adjusting excessive glue valve bolt 2, pressure is maintained 3-10MPa, to ensure sizing material matter
The normal safe work of amount and equipment；
3rd, sizing material enters shunting section 15 after changeover portion under extrusion pressure effect, and extrusion becomes vertical side by horizontal direction
To entering horizontal by the centrally disposed connection sizing section one for being fixed on sizing section center of shunting section after sizing section by shunting section 15
Section is the shunting post 12 of hexagon, and sizing material cross-sectional area is the 1/2 of cylindrical structural cross-sectional area after shunting post, by mistake
Cross section 5 and back to the horizontal direction is become by vertical direction again to sizing section extrusion, sizing material is existing by centre by the six runner causes for gossip of sizing section
Extruded to surrounding；
4th, after sizing material is extruded from centre to surrounding, finally full of prevulcanisation-devices, after sizing material is full of compacting, presulfurization dress
The pressure sensor put is transmitted to the connected elevator control system of extruder, and elevator control system is by extruder along vertically
Direction moves up, and now moves down shelves offset plate 13, by the sealing of annular sizing material, and carries out the presulfurization work of annular tire tread glue
Sequence；
5. the die sinking of prevulcanisation-devices control system control prevulcanisation-devices, forms the radial oriented tyre surface of presulfurization chopped fiber
Glue.
The present invention has advantages below compared with prior art：One is short fiber orientation principle simple, by it is most common from
One end level extrusion makes into uniformly to be extruded to surrounding from center, and it is pre- cleverly to apply to annular tire tread by the change of extrusion way
In vulcanization plant, the radial oriented degree of fiber is improved, overcome chopped fiber sizing material sulphur in tyre adjustable die in the prior art
The chopped fiber direction of motion changes during change, and extrusion molding is radial oriented not to have the technical problem of practical function, and extrudes
Molding sulfuration is integrated, and reduces technological process；Two be invention device small volume, simple structure, to operating personnel's technical merit
It is required that it is relatively low, so as to ensure that the quality stability of extruded tread sizing material is good；Three can be by shape section partial replacement, can basis
The size and the suitable sizing section of requirement design of annular tire tread prevulcanisation-devices, meet different processing requests.
Embodiments above is merely to illustrate the technical scheme being not intended to limit the present invention, and does not depart from any of spirit of the present invention
Modification or local replacement, all should cover in the middle of scope of the presently claimed invention.
Claims (8)
1. a kind of chopped fiber it is radial oriented enhancing annular tire tread extrusion molding presulfurization integrated device, including entrance, changeover portion,
Shunting section, sizing section, it is characterised in that：The changeover portion end is connected with shunting section, and shunting section inner cylinder runner is first passed through
90 degree of deformations, are provided with the shunting post that a cross section is hexagon in the shunting section runner after deformation, shunting column top is six ribs
Cone, shunting post is fixed on sizing section center, and sizing section is connected by hexagonal double-ended bolt with shunting section, shunts post with sizing section central part
Divide rounding off, shunt the end connection sizing section of post, sizing section is made up of die cavity between upper and lower stereotype plate and plate, shunts post and consolidate
Sizing section center is scheduled on, sizing section is connected by hexagonal double-ended bolt with shunting section, and sizing section has six uiform section runners, runner mouthful
Relative with hexagon side, it is the 1/2 of cylindrical structural cross-sectional area to shunt the cross-sectional area of post, and sizing section fit on has piecemeal wheel
The prevulcanisation-devices of tire patterned surface, prevulcanisation-devices are chimeric with upper stereotype plate, lower stereotype plate.
2. a kind of chopped fiber as claimed in claim 1 is radial oriented strengthens annular tire tread extrusion molding presulfurization integrated device,
It is characterized in that：The prevulcanisation-devices include recap lower mould, recap mold and shelves offset plate, recap on
The inside and outside two-layer of mould point, the shelves offset plate insertion recaps between mold ectonexine, is distributed in sizing section six runners mouthful
Extend in the mold for recapping, the mold internal layer that recaps is six runners, be connected with sizing six runners of section, shelves
Offset plate can close six runners downwards, and outer layer is annular precured tread die cavity, recap upper and lower mould matched moulds when type
Chamber is highly 9/10 of the height of die cavity between upper and lower stereotype plate.
3. a kind of chopped fiber as claimed in claim 1 is radial oriented strengthens annular tire tread extrusion molding presulfurization integrated device,
It is characterized in that：The sizing section inner flow passage with center as starting point, along six runners of iso-cross-section extrude by sizing material, every stream
The angle at road center is 60 degree, and the height of die cavity is to be full of the 1/4 of shunting section flow diameter entirely between upper and lower stereotype plate.
4. a kind of chopped fiber as claimed in claim 1 is radial oriented strengthens annular tire tread extrusion molding presulfurization integrated device,
It is characterized in that：The entrance is a flange, and the flange center position is the stream of sizing material entrance, sizing material entrance and changeover portion
Road is communicated.
5. a kind of chopped fiber as claimed in claim 1 is radial oriented strengthens annular tire tread extrusion molding presulfurization integrated device,
It is characterized in that：The entrance is pyramidal structure, and changeover portion is cylindrical structural.
6. a kind of chopped fiber as claimed in claim 1 is radial oriented strengthens annular tire tread extrusion molding presulfurization integrated device,
It is characterized in that：The changeover portion is equipped with temperature sensor and pressure sensor on cylindrical flow region.
7. a kind of chopped fiber as claimed in claim 1 is radial oriented strengthens annular tire tread extrusion molding presulfurization integrated device,
It is characterized in that：Changeover portion top sets the excessive glue device of connection runner, and excessive glue device includes excessive glue valve and matched
Regulating bolt.
8. the radial oriented enhancing annular tire tread extrusion molding presulfurization of a kind of chopped fiber as described in claim 1-7 is any is integrally
Device, it is characterised in that：Cooling water hole is opened up on the entrance, changeover portion, shunting section.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611166584.5A CN106738763B (en) | 2016-12-16 | 2016-12-16 | Short fiber radial orientation enhanced annular tire tread extrusion molding and prevulcanization integrated device |
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| CN201611166584.5A CN106738763B (en) | 2016-12-16 | 2016-12-16 | Short fiber radial orientation enhanced annular tire tread extrusion molding and prevulcanization integrated device |
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| CN106738763B CN106738763B (en) | 2022-07-26 |
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| CN109676890A (en) * | 2019-02-28 | 2019-04-26 | 华迅工业(苏州)有限公司 | A kind of rail traffic cable double-layer coextrusion outer mold |
| CN112757606A (en) * | 2020-12-31 | 2021-05-07 | 安徽耐科装备科技股份有限公司 | Pressure-resistant anti-overflow connecting device for plastic section bar plate mold inlet |
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| Publication number | Publication date |
|---|---|
| CN106738763B (en) | 2022-07-26 |
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Effective date of registration: 20230406 Address after: Room 810, 8th floor, Jingkong Building, No. 57 Lushan Road, Huangdao District, Qingdao, Shandong Province, 266000 Patentee after: Qingdao Guocheng Zhongjia High tech Development Co.,Ltd. Address before: 266061 Songling Road, Laoshan District, Qingdao, Shandong Province, No. 99 Patentee before: QINGDAO University OF SCIENCE AND TECHNOLOGY |