CN101352927A - Method for extruding and forming short fiber reinforced-rubber composite material in radial direction - Google Patents
Method for extruding and forming short fiber reinforced-rubber composite material in radial direction Download PDFInfo
- Publication number
- CN101352927A CN101352927A CNA2008101401600A CN200810140160A CN101352927A CN 101352927 A CN101352927 A CN 101352927A CN A2008101401600 A CNA2008101401600 A CN A2008101401600A CN 200810140160 A CN200810140160 A CN 200810140160A CN 101352927 A CN101352927 A CN 101352927A
- Authority
- CN
- China
- Prior art keywords
- short fiber
- rubber
- orientation
- sizing material
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 44
- 229920001971 elastomer Polymers 0.000 title claims abstract description 30
- 239000005060 rubber Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 28
- 238000004513 sizing Methods 0.000 claims description 27
- 230000000694 effects Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 abstract description 2
- 230000008961 swelling Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 17
- 208000010727 head pressing Diseases 0.000 description 14
- 239000003292 glue Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a short fiber reinforced rubber composite material radial orientation extrusion molding method and the procedures are as follows: at first, rubber molten mass containing short fiber is carried out with the extrusion processing in an extruder; at the end of the screw rod in the extruder tube, the rubber is extruded into an axial orientation channel, the flow direction of the rubber mass is adopted for orientation, and the axial orientation of the short fiber is realized in the axial orientation channel of a machine head; the rubber mass which goes through the axial orientation passes through a resistance dam formed by contracting the thickness of the channel under the function of extrusion pressure; the rubber is characterized by extrusion swelling, so the short fiber is inclined owing to rolling over after the rubber mass passes through the resistance dam; the expanded rubber mass keeps flowing along the channel, the inclined degree of the part in middle and at edge is increased owing to velocity gradient, the radial orientation of the short fiber is increased and then the radial orientation is realized. The method of the invention has the advantages of simple and easily-controlled technique procedures, wide application range, good radial orientation quality of products, and low cost.
Description
Technical field:
The present invention relates to a kind of method for extruding and forming short fiber reinforced-rubber composite material in radial direction, particularly a kind of cut-fiber reinforcement rubber continuous extrusion and in extrusion, realize the method for short fiber radial extruding forming in sizing material.
Background technology:
Short fiber-rubber composite is one of preparation high-performance tire desirable material.Discover, add short fiber in the sizing material, resistance to rolling, anti-slippery and the hysteresis loss of tire are obviously reduced, tyre surface tear resistance, anti-collapsing are used up the piece raising, can realize the lightweight of tire and the noise that travels is reduced.If short fiber is radial oriented in sizing material, more can improve the integral rigidity of tire, balance control, riding comfort and the tire wear of automobile all are improved.Short fiber radially is orientated, domestic and international many researchers have carried out extensive studies, the method that mainly solves has at present: the one, and the short fiber that elder generation's common head of employing is extruded is along the sizing material of circumferential orientation, be die-cut into the tyre surface section configuration, a piece is spliced to required tyre surface length again, this method efficient is very low, only is applicable to experimental study, also can't be applied in the actual production at present; The 2nd, the method for taking to change head and shape of the mouth as one speaks structure is directly extruded the radial oriented packing element of short fiber, vertically cut open again, cut along extruding the width of direction then by part requirement, though this method has application extruding on the radial oriented sebific duct of short fiber, but this method will be used on the tire production, but exists a lot of difficulties.Because tire tread is a product that definite shape and specification are arranged, if extrude packing element, must carry out secondary and cut open and cut splicing again, complex operation, production efficiency is low, also can influence tyre forming process.If direct extruded tread, its die size must be suitable with the overall diameter of tire, and the shape of the mouth as one speaks is huge, and the specification of extruder is huge, brings very big difficulty to machine-building, almost is difficult to realize, in addition, more can not realize the production of compound tyre surface.
Summary of the invention:
The objective of the invention is to overcome the shortcoming that exists in the prior art, seek to provide a kind of novel extruding forming method, in the cut-fiber reinforcement rubber composite material extrusion, realize that short fiber is radial oriented in sizing material.
To achieve these goals, the concrete steps of extruding and forming short fiber reinforced-rubber composite material in radial direction of the present invention are that the rubber molten mass that will contain short fiber earlier joins in the extruder and extrudes processing by screw rod; Screw rod end in extruder barrel through extruding the axial orientation runner that rubber after the processing is squeezed into extruder head, utilizes short fiber with sizing material flow direction orientation, realizes short fiber axial direction orientation in the axial orientation runner of head; The resistance dam that will under the extrusion pressure effect, form through the sizing material behind the axial orientation then by thickness by contracted channel, utilize rubber to extrude the characteristics of expansion, roll in the process that short fiber in the sizing material expands rapidly after sizing material is by resistance dam, present the trend of inclination; Sizing material longshore current road after will expanding at last continues to flow, sizing material in the centre of runner and marginal portion owing to there is velocity gradient, make the aggravation of short fiber inclined degree, the radial oriented degree of short fiber increases, through via flow one segment distance and before being extruded by head, short fiber is realized radial oriented in sizing material.
Frame head apparatus main body used in the present invention is made up of flange, runner plate, resistance dam gripper shoe, stereotype plate and head pressing plate, the arrival end of head is designed to pyramidal structure, mid portion is a rectangular cross section structure, and the port of export forms dam shape structure by dwindling runner thickness; Flange and runner plate link, and runner plate and resistance dam gripper shoe link, and resistance dam gripper shoe and stereotype plate link, and stereotype plate and head pressing plate link; Be shaped on the screwed hole that eight diverse locations are symmetrically distributed on the front of flange, with eight double threaded screws flange and runner plate, resistance dam gripper shoe, stereotype plate, head pressing plate be linked together in order successively, the double threaded screw other end is fixed with nut; Be shaped on eight holes on the edge of flange, by the bolt connection flange is fixedlyed connected with extruder, the flange arrival end is placed the filter offset plate, be provided with an excessive glue valve directly over the flange front end and regulate bolt and link with excessive glue, excessive glue valve side is shaped on the glue hole of overflowing, the excessive glue step-down in excessive glue hole when head pressure is excessive, the switch in the glue hole of overflowing is controlled by the glue adjusting bolt that overflows; Flange inside is shaped on and adds the hot water channel, adds the hot water hole into and out of two and is positioned at flange front end right side; Place a pair of resistance dam regulating block in the middle of the resistance dam gripper shoe, resistance dam is regulated bolt one end and is fixed with the resistance dam regulating block, and the other end can be controlled the resistance dam gap thickness by being threaded and the resistance dam gripper shoe links by resistance dam adjusting bolt; Place a pair of typing regulating block in the middle of the stereotype plate and regulate the typing gap thickness, the typing regulating block is clipped between resistance dam gripper shoe and the head pressing plate, and the screw of placing by a pair of symmetry in head pressing plate front is fixed; Head pressing plate inside is shaped on and adds the hot water channel, adds the hot water hole into and out of two and is positioned at head pressing plate right side; The water inlet of the delivery port of head pressing plate and flange, flange and head pressing plate links by the HTHP water pipe, and circulating of hot water of realization heated head.
The present invention compared with prior art has the following advantages: the one, can be applicable to have wide range of applications on the various general Rubber Extruders; The 2nd, can realize short fiber-rubber composite continuous extrusion, and make goods even, closely knit; The 3rd, the extrusion molding process middle short fiber that can realize short fiber-rubber composite radial oriented in sizing material; The 4th, employed device volume is little, simple in structure, runner is smooth and easy, easy operating, and lower for the technical level of operators requirement, product quality improves, and production cost of products is low.
Description of drawings:
Fig. 1 looks section assembly structure principle schematic for the master of device used herein.
Fig. 2 overlooks section assembly structure principle schematic for equipment therefor of the present invention.
The specific embodiment:
Also be described further in conjunction with the accompanying drawings below by embodiment.
Embodiment:
The radial oriented concrete steps of the extrusion molding of present embodiment are as follows:
A) will contain in the elastomeric compound adding cold feed extruder of short fiber, choosing extruder is XJW60-200, and its screw speed is extruded machine-shaping by the rotation and the shear action of screw rod between 15-60 rev/min, be suitable for the requirement of different rubbers;
B) rubber enters cross-head after pressurizeing through screw rod transmission, in the axial orientation runner of head, carry out the orientation first time, mainly be to utilize short fiber to be orientated in this process with the characteristic that sizing material flows, being implemented in the interior short fiber of axial orientation runner can most of be orientated, the head pressure of this section is between 2-6Mpa, and pressure can be by the glue valve regulation of overflowing; The length of runner can be regulated by the reassembling type runner plate, between 10-50mm, with the orientation of the short fiber that is suitable for different length; The height of runner also can be regulated the requirement of appropriate products different in width and height with width by changing different runner plates;
C) through behind the axial orientation, the resistance dam that sizing material forms by the thickness by the contracted channel body, sizing material is through behind the little gap of resistance dam, enter relatively large typing zone, gap, at this moment sizing material has had with to extrude direction perpendicular, the velocity component of radial direction just, and the size of velocity component can be by regulating the pressure of head, the gap of flow and resistance dam, length and angle of throat are regulated, thereby regulate the radial oriented degree and the angle of short fiber, head pressure is between 2-5Mpa, the resistance dam gap is between 3-15mm, and length is between 2-20mm, and angle of throat is at 45 °-75 °;
D) enter the typing zone after, sizing material in the centre of runner and marginal portion owing to have velocity gradient, the short fiber orientation degree is further increased, after the distance through one section typing, the height of sizing material tends towards stability, and sizing material is extruded the shape of the mouth as one speaks, short fiber is realized radial oriented in shaped article, the length in typing zone is between 10-40mm, and height can be regulated according to the requirement of different rubbers between 5-30mm.
The employed apparatus main body structure of present embodiment comprises head pressing plate 1, stereotype plate 2, resistance dam gripper shoe 3, runner plate 4, the glue valve 5 that overflows, the glue adjusting bolt 6 that overflows, flange 7, filter offset plate 8, resistance dam adjusting bolt 9, resistance dam regulating block 10, typing regulating block 11 and HTHP water pipe 12.
The employed head of the method for extruding and forming short fiber reinforced-rubber composite material in radial direction of present embodiment is mainly combined by flange 7, runner plate 4, resistance dam gripper shoe 3, stereotype plate 2 and head pressing plate 1; Be shaped on the screwed hole that eight diverse locations are symmetrically distributed on the front of flange 7, with eight double threaded screws flange 7 and runner plate 4, resistance dam gripper shoe 3, stereotype plate 2, head pressing plate 1 be linked together in order successively, the double threaded screw other end is fixed with nut; The position is equipped with the glue valve 5 that overflows directly over the flange 7, bores a screwed hole under the flange 7, in order to being used for the setting pressure sensor; Place a pair of resistance dam regulating block 10 in the middle of the resistance dam gripper shoe 3, it is fixing with resistance dam regulating block 10 that resistance dam is regulated bolt 9 one ends, and the other end can be controlled the resistance dam gap thickness by being threaded and resistance dam gripper shoe 3 links by resistance dam adjusting bolt 9; Place a pair of typing regulating block 11 in the middle of the stereotype plate 2 and regulate the typing gap thickness, typing regulating block 11 is clipped between resistance dam gripper shoe 3 and the head pressing plate 1, and the screw of placing by a pair of symmetry in head pressing plate 1 front is fixed.
The result of present embodiment meets the requirement of goal of the invention after measured fully, and every index all is better than prior art products.
Claims (2)
1. method for extruding and forming short fiber reinforced-rubber composite material in radial direction, the rubber molten mass that it is characterized in that will containing earlier short fiber joins in the extruder extrudes processing by screw rod; Screw rod end in extruder barrel through extruding the axial orientation runner that rubber after the processing is squeezed into extruder head, utilizes short fiber with sizing material flow direction orientation, realizes short fiber axial direction orientation in the axial orientation runner of head; The resistance dam that will under the extrusion pressure effect, form through the sizing material behind the axial orientation then by thickness by contracted channel, utilize rubber to extrude the characteristics of expansion, roll in the process that short fiber in the sizing material expands rapidly after sizing material is by resistance dam, present slope trend; Sizing material longshore current road after will expanding at last continues to flow, sizing material in the centre of runner and marginal portion owing to there is velocity gradient, make the aggravation of short fiber inclined degree, the radial oriented degree of short fiber increases, through via flow one segment distance and before being extruded by head, short fiber is realized radial oriented in sizing material.
2. method for extruding and forming short fiber reinforced-rubber composite material in radial direction according to claim 1 is characterized in that the extruder screw rotating speed is 15-60 rev/min; Head pressure is 2-6Mpa; Flow channel length is 10-50mm; The resistance dam gap is 3-15mm, and length is 2-20mm; Angle of throat is 45 °-75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101401600A CN101352927A (en) | 2008-08-17 | 2008-08-17 | Method for extruding and forming short fiber reinforced-rubber composite material in radial direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101401600A CN101352927A (en) | 2008-08-17 | 2008-08-17 | Method for extruding and forming short fiber reinforced-rubber composite material in radial direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101352927A true CN101352927A (en) | 2009-01-28 |
Family
ID=40306063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101401600A Pending CN101352927A (en) | 2008-08-17 | 2008-08-17 | Method for extruding and forming short fiber reinforced-rubber composite material in radial direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101352927A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643896A (en) * | 2016-03-24 | 2016-06-08 | 青岛科技大学 | Extrusion molding device for remanufactured tyre tread reinforced by short fibers |
| CN106626442A (en) * | 2016-12-16 | 2017-05-10 | 青岛科技大学 | Method for enhancing extrusion molding of tread rubber by utilizing radial orientation of short fiber |
| CN106738764A (en) * | 2016-12-16 | 2017-05-31 | 青岛科技大学 | The radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber |
| CN106738763A (en) * | 2016-12-16 | 2017-05-31 | 青岛科技大学 | The radial oriented enhancing annular tire tread extrusion molding presulfurization integrated device of chopped fiber |
| US10710322B1 (en) * | 2015-06-12 | 2020-07-14 | Accredo Packaging, Inc | Matte film and method of manufacture therefore |
| CN114407330A (en) * | 2022-01-26 | 2022-04-29 | 北京大学 | Thermal interface material and preparation method thereof |
-
2008
- 2008-08-17 CN CNA2008101401600A patent/CN101352927A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10710322B1 (en) * | 2015-06-12 | 2020-07-14 | Accredo Packaging, Inc | Matte film and method of manufacture therefore |
| CN105643896A (en) * | 2016-03-24 | 2016-06-08 | 青岛科技大学 | Extrusion molding device for remanufactured tyre tread reinforced by short fibers |
| CN105643896B (en) * | 2016-03-24 | 2018-06-12 | 青岛科技大学 | Short fiber reinforced remanufactures tire tread extrusion molding apparatus |
| CN106626442A (en) * | 2016-12-16 | 2017-05-10 | 青岛科技大学 | Method for enhancing extrusion molding of tread rubber by utilizing radial orientation of short fiber |
| CN106738764A (en) * | 2016-12-16 | 2017-05-31 | 青岛科技大学 | The radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber |
| CN106738763A (en) * | 2016-12-16 | 2017-05-31 | 青岛科技大学 | The radial oriented enhancing annular tire tread extrusion molding presulfurization integrated device of chopped fiber |
| CN106626442B (en) * | 2016-12-16 | 2019-07-26 | 青岛科技大学 | The radial oriented enhancing tread rubber extruding forming method of staple fiber |
| CN114407330A (en) * | 2022-01-26 | 2022-04-29 | 北京大学 | Thermal interface material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102431145A (en) | Device for performing radial orientation molding on short fibers of tire tread rubber | |
| CN101352927A (en) | Method for extruding and forming short fiber reinforced-rubber composite material in radial direction | |
| CN100584588C (en) | Radial extruding forming device of cut-fiber reinforcement rubber composite material | |
| CN103231502B (en) | Multi-layer coextrusion water-cooling blown film unit | |
| CN206374171U (en) | The radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber | |
| CN106626442B (en) | The radial oriented enhancing tread rubber extruding forming method of staple fiber | |
| CN201120715Y (en) | Extrusion equipment for fire resistant polymer rod bar | |
| CN101391482B (en) | Booster head produced by extruding method for rubber fender | |
| CN201257742Y (en) | Rubber composite material short fiber radial orientation extrusion molding apparatus | |
| CN208930677U (en) | Modified ultra-high molecular weight polyethylene plate extrusion die | |
| CN105643897B (en) | Fiber reinforcement remanufactures tire tread radial extruding forming method and device | |
| CN105172097A (en) | Online biaxial orientation extrusion mold for plastic small-caliber tube | |
| CN201538025U (en) | Multi-product extrusion molding device | |
| CN105643896B (en) | Short fiber reinforced remanufactures tire tread extrusion molding apparatus | |
| CN106738764B (en) | Short fiber radial orientation reinforced tread rubber extrusion molding device | |
| CN205631303U (en) | Fibre radial orientation reinforcing refabrication tire tread extrusion moulding device | |
| CN106182677B (en) | Stacked fiber planar orientation enhancing remanufactures extruded tread forming method and device | |
| RU2422275C1 (en) | Method of producing structural polycarbonate sheet | |
| CN205631317U (en) | Fiber reinforcement refabrication tire tread extrusion moulding device | |
| CN206855963U (en) | It is classified the cable extruding machine head of guide | |
| CN207564907U (en) | TPU and ABS composite board equipment | |
| CN205631316U (en) | Tread extrusion moulding device is renovated in reinforcing of short -staple radial orientation | |
| CN203818544U (en) | Die extruding machine | |
| CN105643895A (en) | Extrusion molding device for remanufactured tyre tread reinforced by fiber radial orientation | |
| CN101332667A (en) | Long glass fiber-reinforced plastics pipe extruder head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090128 |