CN205631302U - Short -staple reinforcing refabrication tire tread extrusion moulding device - Google Patents
Short -staple reinforcing refabrication tire tread extrusion moulding device Download PDFInfo
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- CN205631302U CN205631302U CN201620231732.6U CN201620231732U CN205631302U CN 205631302 U CN205631302 U CN 205631302U CN 201620231732 U CN201620231732 U CN 201620231732U CN 205631302 U CN205631302 U CN 205631302U
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- runner
- plate
- tire tread
- cylinder
- runner plate
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- 238000001125 extrusion Methods 0.000 title claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 title abstract 2
- 239000000835 fiber Substances 0.000 claims abstract description 77
- 238000004513 sizing Methods 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 48
- 229920001971 elastomer Polymers 0.000 claims description 16
- 239000003292 glue Substances 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000003467 diminishing effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 12
- 150000001875 compounds Chemical class 0.000 description 14
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000010727 head pressing Diseases 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
Abstract
The utility model relates to a short -staple reinforcing refabrication tire tread extrusion moulding device, including entrance, runner plate, orientation section and design part, the runner plate extends to the orientation section from the entrance, and the orientation section is including hindering dam board and bush runner piece, and the part of stereotyping is including two cylinders of mutually supporting and support fixed portion, and bush runner piece is fixed and is being hindered dam board rear end, and the cylinder setting is in bush runner piece rear end, and the center line symmetry of bush runner piece and cylinder longshore current guidance tape sets up, the runner of runner plate is in the toper of entrance department for reducing gradually, is the rectangle in the runner plate rear end. The utility model discloses the device has following advantage: 1 )Avoided the sizing material to slide owing to the wall does not have and destroy (fibre oriented direction's problem) at the in -process that flows. 2 ) tread sizing material confirms the tread size by rotatory cylinder rather than fixed bush, and its size is more accurate. 3 ) compact structure designs simply the continuous popularization of the industrialization of being convenient for.
Description
Technical field
This utility model relates to short fiber reinforced and remanufactures tire tread extrusion molding apparatus, especially in the radial oriented extrusion molding apparatus being applied to remanufacture tire tread of chopped fiber.
Background technology
The process of junked tire is one of serious problems of facing of current people.The fast development of China Auto Market so that the scale continuous enlargement of tire production, junked tire also produces continuously.Domestic annual junked tire reaches 200,000,000 a plurality of, equivalent rubber sources about more than 300 ten thousand tons.According to calculating, the most huge number of junked tire, if it is possible to 100% ground is recycled recycling, China's natural rubber yield of 5 years can be equivalent to.In order to meet the product properties requirement improved constantly, rubber develops towards high intensity, wear-resisting, stable and ageing-resistant direction, but cause simultaneously discarded after rubber over a long time can not the problem of natural degradation, substantial amounts of waste old causes ratio plastic pollution (white pollution) more intractable black pollution, on the other hand wastes the rubber sources of preciousness.
Old tire recycles becomes the Chaoyang industry that resources conservation is environmentally friendly, it is internationally recognized tire minimizing, recycling and the preferred manner of resource that old tire remanufactures, compared with new tyre forming process, the tyre surface remanufacturing tire is separately formed, its pressure applied in sulfidation is big many when can vulcanize than new tyre, ensure that to remanufacture tire tread compound finer and close, so that the wearability remanufacturing tire is more preferable than new tyre, the life-span is longer.Ensure that wearability is more preferable although sizing material is finer and close, but the resistance to impact of its tyre surface is substantially reduced simultaneously, therefore under conditions of road conditions are severe, remanufacture tire and be easier to collapse and use up block.
Chopped fiber is added in remanufacturing tire tread compound, and make chopped fiber radial oriented in sizing material, and the resistance to rolling of tire can be made substantially to reduce, the tear resistance of tyre surface, wearability, chunking resistance of the tire tread improve, tire lightweight can be made, and also traveling lower noise can be made.
The open a kind of method for extruding and forming short fiber reinforced-rubber composite material in radial direction of CN101352927A, first carries out extrusion processing in an extruder by the rubber molten mass containing chopped fiber；Screw rod end in extruder barrel, rubber is squeezed into axial orientation runner, utilizes sizing material flow direction to be orientated, and realizes chopped fiber axial direction orientation in the axial orientation runner of head；The resistance dam that sizing material after axial orientation is formed by the thickness by contracted channel under extrusion pressure effect, utilizes the feature that rubber extruding expands, and the chopped fiber in sizing material occurs rolling to tilt during expanding rapidly after sizing material is by resistance dam；Sizing material after expansion continues flowing along runner, makes inclination aggravate in the centre of runner and marginal portion because of velocity gradient, the radial oriented increase of chopped fiber, and and then realizes radial oriented.
The open a kind of radial extruding forming device of cut-fiber reinforcement rubber composite material of CN101337435A, eight screwed holes it are shaped with on its flange front, with eight double threaded screws and nut, flange is linked together the most successively with runner plate, resistance dam gripper shoe, stereotype plate, head pressing plate, equipped with excessive glue valve directly over flange, a screwed hole is bored to install pressure transducer in underface；Placing a pair resistance dam regulating block in the middle of resistance dam gripper shoe, resistance dam regulation bolt one end is fixed with resistance dam regulating block, and the other end is threaded connection and is connected with resistance dam gripper shoe, and resistance dam regulation bolt controls resistance dam gap；Placing a pair sizing regulating block in the middle of stereotype plate and regulate sizing gap, sizing regulating block is clipped between resistance dam gripper shoe and head pressing plate and is fixed by screw.
The open a kind of device for performing radial orientation molding on short fibers of tire tread rubber of CN102431145A, adjusted bolt by head pressure, head pressure adjusts valve and filter offset plate forms head entrance, formed radial oriented section by orientation gap regulating block, orientation clearance adjusting screw, bypass type block and orientation gap gripper shoe, sizing gap adjustment block, sizing clearance adjusting screw and sizing gap gripper shoe form sizing section；Eight through holes it are evenly arranged on ring flange, with eight bolts, ring flange is connected with extruder fuselage respectively, head entrance is connected with ring flange and fixes with reinforcement gusset, the cooling water circulation passage of heating it is shaped with in head entrance, its arrival end is shaped with worry offset plate, and head pressure regulation valve is connected with head pressure regulation bolt and head entrance respectively.
Technique scheme middle short fiber orientation after will through sizing part after extruder head, in sizing part, due to sizing material flow behavior, wall is there is without sliding phenomenon at wall, and intermediate member sizing material moves forward, eventually destroy the radial oriented of fiber, make fiber gradually trend towards axial orientation, cause obtained remanufacturing tire tread glue resistance to impact and wearability reduces, thus cause reduce the service life remanufacturing tire.
Utility model content
For overcoming the most radial oriented chopped fiber caused without sliding due to sizing material flow behavior wall in prior art to be destroyed in moulding section fiber orientation directions, this utility model provides a kind of short fiber reinforced and remanufactures tire tread extrusion molding apparatus, including entrance, runner plate, orientation section and sizing part, runner plate extends to be orientated section from entrance, unlike the prior art: this utility model orientation section includes resistance dam plate and mouth die runner blocks, setting section divides and includes two cylinders cooperated and support standing part, mouth die runner blocks is fixed on resistance dam plate rear end, cylinder is arranged on mouth die runner blocks rear end, mouth die runner blocks and cylinder are symmetrical arranged along the centrage of runner plate；The runner of runner plate is diminishing taper at entrance, is rectangle in runner plate rear end；Mouth die runner blocks for providing the space of orientation by the chopped fiber sizing material of resistance dam plate, it flow to cylinder gap for the most radial oriented chopped fiber simultaneously and transition runner is provided, the sizing material being orientated is entered cylinder gap by the runner of mouth die runner blocks, promotion cylinder rotates, weaken wall without sliding phenomenon, it is achieved farthest fiber is radial oriented.
The purpose of this utility model is to avoid owing to sizing material flow behavior wall is without sliding phenomenon, destroy the machine direction being orientated, make the most radial oriented chopped fiber, its radial oriented state is maintained in sizing part, until sizing material departs from head, prepare we required containing chopped fiber radial oriented remanufacture tire tread.
Know-why of the present utility model is as follows: mouth die runner blocks flow to cylinder gap for the most radial oriented chopped fiber and provides a transition runner, runner is preferably designed for circular arc camber, it is beneficial to sizing material expansion after resistance dam, thus realize making the principle of fibre orientation due to high polymer extrusion swelling characteristic, sizing material is being expanded so that chopped fiber tilts after resistance dam, turn forward at wall, gradually it is orientated at the wall of transition runner by the chopped fiber after resistance dam, final completely radial orientation, therefore sizing material length of flow designs the shortest requirement of extrusion swelling fibre orientation to be met, simultaneously can not be oversize, owing to wall destroys the differently-oriented directivity of fiber without sliding, design 5-10mm is optimal for this flow channel length；The sizing material being orientated just flows out runner and enters cylinder gap, promotes cylinder to rotate, weakens the wall impact without sliding, it is achieved farthest fiber is radial oriented；Two cylinder gap are designed according to the thickness requirement that recaps, and diameter of cylinder size should be according to orientation section and mouth die runner plate length dimension appropriate design.The chopped fiber sizing material being orientated enters cylinder gap, promotes cylinder to rotate, weakens the wall impact without sliding, it is achieved farthest fiber is radial oriented, it is ensured that remanufacture tire tread glue quality, it is ensured that the service life remanufacturing tire is longer.
Preferably: the support standing part of cylinder includes bearing, bearing block and cylinder fixed plate, cylinder is positioned in cylinder fixed plate by bearing and bearing block.
Preferably: entrance is a flange, described flange center position is sizing material entrance, and sizing material entrance communicates with the flow channel entry point of runner plate.
Preferably: flange, runner plate, resistance dam plate and cylinder fixed plate are fixed together.
Preferably: the runner of mouth die runner blocks is circular arc camber, mouth die runner blocks the right and left fixes the shaped block limiting tread rubber width.Mouth die runner blocks for providing the space of orientation by the chopped fiber sizing material of resistance dam plate, flowing to cylinder gap for the most radial oriented chopped fiber simultaneously and provide transition runner, therefore the Design of length of mouth die runner blocks should meet the general 5-10mm of the shortest requirement of the radial oriented Len req of chopped fiber；The effect of shaped block determines that the size of the tyre surface of extrusion, the thickness of tyre surface is the clearance control by cylinder, and the width of tread rubber is the distance kept left between right shaped block fixes, in general, it is determined that the size of tread rubber before design, so the distance between the gap of cylinder and left and right shaped block, fixed design when.
Preferably: the 1/3-2/3 of a length of runner plate runner of the runner taper of runner plate；The 1/3-2/3 of a length of runner plate runner of rectangle.
Preferably: runner plate is provided above connecting the excessive adhesive dispenser of runner, excessive adhesive dispenser includes excessive glue valve and the regulation bolt coordinated with excessive glue valve.
Preferably: equipped with temperature sensor and pressure transducer on runner plate.
Preferably: temperature sensor and pressure transducer are arranged on the runner rear end of runner plate.
Preferably: on runner plate, offer cooling water hole.
Remanufacturing the radial oriented process of tire tread glue chopped fiber is:
1, by containing chopped fiber elastomeric compound add in cold feed extruder, extruder is XJW60-200, and screw speed is set to 15 revs/min, by rotation and the shearing of screw rod, it is achieved remanufacture tire tread compound is extruded and processed into type；
2, remanufacturing tire tread compound and enter utility model device after the conveying of screw rod, chopped fiber enters tapered runner with sizing material, makes its pressure reach 4-8MPa by the excessive glue valve regulation bolt of regulation, for making fibre orientation put aside energy by the expansion of resistance dam sizing material.
3, remanufacturing fiber in the tire tread compound middle short fiber stream rapid expansion process of sizing material after resistance dam occurs rolling to tilt, and after resistance dam, fiber continues orientation in sizing runner blocks, until sizing material enters cylinder gap, completes radial oriented process.Its sizing runner blocks length is typically at about 5-10mm.
4, remanufacturing after tire tread compound enters cylinder gap promotes cylinder to rotate, and makes sizing material move with cylinder simultaneously, thus weakens the wall impact without sliding, it is achieved farthest fiber is radial oriented.Its cylinder gap and stereotype plate spacing should be according to remanufacturing the design of tire tread compound dimensional requirement, and stereotype plate spacing is generally 10-40mm, and between cylinder, gap is generally 5-30mm.
Accompanying drawing explanation
Fig. 1 is main sectional view of the present utility model；
Fig. 2 is longitudinal section of the present utility model；
Fig. 3 is structural principle schematic diagram of the present utility model.
Detailed description of the invention
A kind of short fiber reinforced remanufactures tire tread extrusion molding apparatus, including adpting flange 1, runner plate 4, the glue valve 3 that overflows, overflow glue valve regulation bolt 2, temperature sensor 5, pressure transducer 12, resistance dam plate 6, mouth die runner blocks 7, cylinder 10, cylinder fixed plate 8, stud 9, nut 11, bearing block 14, bearing 15, shaped block 13.It is connected with extruder before adpting flange 1, is connected with runner plate 4 afterwards.Runner plate 4 porch is conical design, and exit is to meet tread rubber dimensional requirement and reduce the destructiveness to radial oriented chopped fiber, and therefore outlet is rectangular design, and this kind of flow design form is prone to sizing material flowing and the guarantee of tread rubber size；The 1/2 of a length of runner plate runner of taper；The 1/2 of a length of runner plate runner of rectangle.Have excessive glue valve 3 above runner plate 4, pressure in head can be regulated, to ensure that sizing material quality and maintenance equipment normally work by the regulation glue valve regulation bolt 2 that overflows when head pressure is bigger.Simultaneously equipped with temperature sensor 5 and pressure transducer 12 on runner plate 4, can monitor the temperature and pressure of sizing material in utility model device in real time, temperature sensor and pressure transducer are arranged on runner rear end.Resistance dam plate 6 is contracted channel for formation resistance dam, the flowing of its runner design sizing material to be suitable for and short fiber orientation.
This utility model device for the most radial oriented chopped fiber in forming part branch owing to wall is without sliding phenomenon, i.e. wall sizing material does not flows, and center sizing material flow forward, thus destroys the radial oriented of fiber, the sizing part that key design is special.Setting section divides and includes mouth die runner blocks 7, cylinder 10, shaped block 13 and cylinder fixed plate 8.Mouth die runner blocks 7 flow to cylinder 10 gap for the most radial oriented chopped fiber and provides a transition runner, runner design is circular arc camber, it is beneficial to sizing material expansion after resistance dam, thus realize owing to high polymer extrusion swelling characteristic makes the radial oriented principle of fiber, sizing material is being expanded so that chopped fiber tilts after resistance dam, turn forward at wall, gradually it is orientated at the wall of transition runner by the chopped fiber after resistance dam, final completely radial orientation, therefore sizing material length of flow designs the shortest requirement of extrusion swelling fibre orientation to be met, simultaneously can not the oversize differently-oriented directivity destroying fiber due to wall without sliding, design 5-10mm is optimal for this flow channel length.Two cylinder gap are designed according to the thickness requirement that recaps, diameter of cylinder size should be according to orientation section and mouth die runner plate length dimension appropriate design, the intersegmental gap of orientation of the present utility model is 3mm, the a length of 9mm of mouth die runner plate, diameter of cylinder is designed as 35mm, and its short fiber orientation degree is preferable.The sizing material being orientated just flows out runner and enters cylinder 10 gap, promotes cylinder to rotate, weakens the wall impact without sliding, it is achieved farthest fiber is radial oriented.In the other fixing shaped block 13 of mouth die runner blocks 7, its width and cylinder gap require to be designed according to tread mix.
The annexation of each parts is that runner plate 4 is bolted with flange 1, opens 4 screwed holes at runner plate 4 opposite side, and it is connected with stud 9, after fix resistance dam plate 6 successively, cylinder fixed plate 8, after through nut screwing clamping.Together with mouth die runner blocks 7 is bolted with resistance dam plate 6, mouth die runner blocks 7 side is fixed together with shaped block 13 by bolt.Cylinder 10 navigates in cylinder fixed plate 8 by bearing 15, bearing block 14, is finally fixed by upper and lower two plates by bolt.Runner plate 4 opens cooling water hole, is controlled the flowing temperature of sizing material by external attemperating unit.Its concrete structure is as shown.
This utility model device has the advantage that 1 compared with existing fiber radial extruding forming device) avoid sizing material in flow process owing to wall destroys (problem of fiber orientation directions) without sliding.2) tread mix determines tyre surface size by cylinder rather than the fixing mouth die rotated, and its size is more accurate.3) compact conformation, design is simple, it is simple to industrialized continuous popularization.
Remanufacturing the radial oriented process of tire tread glue chopped fiber is:
1, by containing chopped fiber elastomeric compound add in cold feed extruder, extruder is XJW60-200, and screw speed is set to 15 revs/min, by rotation and the shearing of screw rod, it is achieved remanufacture tire tread compound is extruded and processed into type；
2, remanufacturing tire tread compound and enter utility model device after the conveying of screw rod, chopped fiber enters tapered runner with sizing material, makes its pressure reach 4-8MPa by the excessive glue valve regulation bolt of regulation, for making fibre orientation put aside energy by the expansion of resistance dam sizing material.
3, remanufacturing fiber in the tire tread compound middle short fiber stream rapid expansion process of sizing material after resistance dam occurs rolling to tilt, and after resistance dam, fiber continues orientation in sizing runner blocks, until sizing material enters cylinder gap, completes radial oriented process.Its sizing runner blocks length is typically at about 5-10mm.
4, remanufacturing after tire tread compound enters cylinder gap promotes cylinder to rotate, and makes sizing material move with cylinder simultaneously, thus weakens the wall impact without sliding, it is achieved farthest fiber is radial oriented.Its cylinder gap and stereotype plate spacing should be according to remanufacturing the design of tire tread compound dimensional requirement, and stereotype plate spacing is generally 10-40mm, and between cylinder, gap is generally 5-30mm.
Claims (10)
1. short fiber reinforced remanufactures a tire tread extrusion molding apparatus, including entrance, runner plate, orientation section and setting section
Point, runner plate extends to be orientated section from entrance, it is characterised in that: orientation section includes resistance dam plate and mouth die runner blocks, setting section
Dividing and include two cylinders cooperated and support standing part, mouth die runner blocks is fixed on resistance dam plate rear end, and cylinder is arranged on
Mouth die runner blocks rear end, mouth die runner blocks and cylinder are symmetrical arranged along the centrage of runner plate；The runner of runner plate is at entrance
For diminishing taper, it is rectangle in runner plate rear end.
2. a kind of short fiber reinforced as claimed in claim 1 remanufactures tire tread extrusion molding apparatus, it is characterised in that: cylinder
Supporting standing part and include bearing, bearing block and cylinder fixed plate, cylinder is positioned in cylinder fixed plate by bearing and bearing block.
3. a kind of short fiber reinforced as claimed in claim 2 remanufactures tire tread extrusion molding apparatus, it is characterised in that: entrance
Being a flange, described flange center position is sizing material entrance, and sizing material entrance communicates with the flow channel entry point of runner plate.
4. a kind of short fiber reinforced as claimed in claim 3 remanufactures tire tread extrusion molding apparatus, it is characterised in that: flange,
Runner plate, resistance dam plate and cylinder fixed plate are fixed together.
5. a kind of short fiber reinforced as claimed in claim 3 remanufactures tire tread extrusion molding apparatus, it is characterised in that: runner plate
The 1/3-2/3 of a length of runner plate runner of runner taper；The 1/3-2/3 of a length of runner plate runner of rectangle.
6. a kind of short fiber reinforced as claimed in claim 1 remanufactures tire tread extrusion molding apparatus, it is characterised in that: mouth die stream
The runner of road block is circular arc camber, a length of 5-10mm of mouth die runner blocks, and mouth die runner blocks the right and left is fixing limits tread rubber
The shaped block of width.
7. a kind of short fiber reinforced as claimed in claim 1 remanufactures tire tread extrusion molding apparatus, it is characterised in that: runner plate
Being provided above connecting the excessive adhesive dispenser of runner, excessive adhesive dispenser includes excessive glue valve and the regulation bolt coordinated with excessive glue valve.
8. a kind of short fiber reinforced as claimed in claim 1 remanufactures tire tread extrusion molding apparatus, it is characterised in that: runner plate
On equipped with temperature sensor and pressure transducer.
9. a kind of short fiber reinforced as claimed in claim 8 remanufactures tire tread extrusion molding apparatus, it is characterised in that: temperature passes
Sensor and pressure transducer are arranged on the runner rear end of runner plate.
10. a kind of short fiber reinforced as claimed in claim 1 remanufactures tire tread extrusion molding apparatus, it is characterised in that: runner plate
On offer cooling water hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620231732.6U CN205631302U (en) | 2016-03-24 | 2016-03-24 | Short -staple reinforcing refabrication tire tread extrusion moulding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620231732.6U CN205631302U (en) | 2016-03-24 | 2016-03-24 | Short -staple reinforcing refabrication tire tread extrusion moulding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205631302U true CN205631302U (en) | 2016-10-12 |
Family
ID=57074310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620231732.6U Expired - Fee Related CN205631302U (en) | 2016-03-24 | 2016-03-24 | Short -staple reinforcing refabrication tire tread extrusion moulding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205631302U (en) |
-
2016
- 2016-03-24 CN CN201620231732.6U patent/CN205631302U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20190324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |