CN1331769A - Method and device for reinforcing elastic products, especially metal cords of tires - Google Patents
Method and device for reinforcing elastic products, especially metal cords of tires Download PDFInfo
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- CN1331769A CN1331769A CN99814971A CN99814971A CN1331769A CN 1331769 A CN1331769 A CN 1331769A CN 99814971 A CN99814971 A CN 99814971A CN 99814971 A CN99814971 A CN 99814971A CN 1331769 A CN1331769 A CN 1331769A
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/0646—Reinforcing cords for rubber or plastic articles comprising longitudinally preformed wires
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
- D07B3/02—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position
- D07B3/022—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position with provision for imparting two or more twists to the filaments for each revolution of the guide member
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/02—Machine details; Auxiliary devices
- D07B7/025—Preforming the wires or strands prior to closing
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2001—Wires or filaments
- D07B2201/2007—Wires or filaments characterised by their longitudinal shape
- D07B2201/2008—Wires or filaments characterised by their longitudinal shape wavy or undulated
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2046—Tyre cords
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- Ropes Or Cables (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Tires In General (AREA)
Abstract
An apparatus for manufacturing a metal cord (1), particularly for reinforcing synthetic elastomeric products, comprising a support (100), a rotor (5) connected to the support and rotating about a predetermined axis, a cradle fixed to the support and having an axis of oscillation coinciding with the axis of rotation of the rotor, feeding means (8) operatively mounted on said cradle and able to supply from different feeding tubes a plurality of elementary wires passing along a twisted path onto the rotor, the ends (10a,10c) of the twisted path coinciding with the axis of said rotor and a central portion (10b) thereof being spaced apart from said axis of rotation, characterized in that it comprises at least one preforming device (15) operatively associated with the cradle and operating on at least one of said elementary wires in a section upstream with respect to a first end section of the twisted path, and said at least one preforming device (15) providing said base element with a substantially sinusoidal deformation in one plane.
Description
The present invention relates to a kind of device that the formation metal adds the one or more of primitive lines of wringing that is used for forming.This rope is particularly suitable for strengthening synthetic elastic matrix product, such as tire.
Particularly, pre-shaping device according to the present invention is applicable to produces high-carbon (highcradlebon) metal wire, and this metal wire is fit to make the rope with high extensibility.
" high extensibility " is meant that strengthening part is elongated the ability of very big length under the stress effect, and this depends on employed special material and/or the service condition of selected some particular geometric shapes and/or tire in the tire special fabrication processes.
Particularly, the ultimate elongation rate of these ropes of usefulness " HE " (high extensibility) expression is between 4% to 10%.
The line of drawing in the pre-shaping device from the present invention then is fed to traditional stranded position in the prior art, and line can be intertwined along the rope longitudinal axis that will obtain there.
Another object of the present invention is made the operation of above-mentioned rope, comprises following step: form the one or more of primitive lines that constitute above-mentioned rope by making it that permanent deformation take place along the longitudinal; By the winding of spiral on the rope longitudinal axis primitive line is twisted together.
And, the invention still further relates to a kind of mfg. metal cord, preferably add and wring, obtain by above-mentioned molding procedure and stranded operation subsequently.
The rope here is specially designed, is applicable to maker motor-car tyre element, but also can be easy to be used for making other article, as high-pressure fluid line, band, conveyer belt or other product of being made by elastic synthesis material.
As everyone knows, the mfg. metal cord that is commonly used to the reinforcing elastomeric products product is generally twined along Suo Zishen longitudinal axis spiral by several primitive lines and forms.
The pre-shaping device of above-mentioned production rope comprises: a support; One is connected with above-mentioned support and can be around the predetermined shaft rotor rotated; One be fixed on the support, suspension bracket that its swinging axle overlaps with the rotating shaft of rotor; Be contained on the above-mentioned suspension bracket and/or outside exercisable charging gear, be suitable for the one or more of primitive lines that come out from feed pipe are separately sent to, above-mentioned one or more of primitive lines all are to transmit along suitable stranded route; Preferably there is at least one to influence the pre-shaping device of primitive line in can stranded below operation.
Pre-shaping device makes above-mentioned one or more of primitive line generation permanent bend distortion, to be suitable for supporting and to improve subsequently line helical arrangement that helical arrangement has guaranteed the compact structure of rope necessity.
And it should be noted that especially these ropes generally need very high mechanical resistance and embedded elastomeric material is had good physical chemistry adhesive force when making tire, and every line of above-mentioned rope to around material good penetrability is arranged.
In fact, in order to eliminate rope unnecessary corrosion in tire or other Resilient products, the primitive line need be covered by its embedded elastomeric material on whole length fully.
When using more complicated rope, such result is difficult to reach, even under the situation of the rope that uses less primitive line to constitute, also be not easy to obtain.
In fact, in order to make rigging required geometry and structural stability are arranged, the primitive line that constitutes rope is closely contact, and promptly close each other location causes in the above-mentioned rope that stretches along the longitudinal one or more closed hole being arranged.
These holes are closed, therefore can not get there at common gel stage elastomeric material, and the result, corrosion may take place in inside, hole, and propagates along the primitive line.
The result, this just means that because cutting or puncture or other reasons take place, humidity and/or external agency can enter into above-mentioned closed hole on tire construction, inevitably quick corrosion can take place, will damage the structural drag of tire and rope so greatly.
And, because elastomeric material can't get there, the existence in above-mentioned closed hole has also reduced line to elastomeric adhesive force, if above-mentioned rope is used to make tire, do not had adhesive force, in use will occur do not wish the tendency that the line seen and elastomer separate.
Another shortcoming that makes line not have complete gel to bring owing to the existence in hole is that line can produce corrosion in the process of contacting with each other.This can cause the bending resistance of line and rope to reduce inevitably.
A method that overcomes this problem now is to use the rope that is called open to the outside world, and this rope (generally being 3 to 5) all is separated in whole gel operation, and the traction load that acts in the known procedure on the rope can be above 5 kilograms.
Above-mentioned rope is described in U.S. Pat 4258543 to some extent.These ropes can have better penetration to the rubber between line.
But the rope of Huo Deing also can bring problem like this: particularly in use, because the line that constitutes rope also can online generation distance when in tire manufacturing or use, being subjected to very large traction.Undesirable geometry and structural instability will be occurred like this, the performance of tire can be damaged.
According to an embodiment of prior art, used to be called two diameter ropes, that is to say that first pair of diameter with second pair is different in two pairs of lines of rope.
Making the first pair of primitive line of same size and the technology of the second pair primitive line littler than the first pair of size also is known (seeing European patent EP 0168857).Above-mentioned first and second pairs of preformed heads that pass a circle, they can carry out different distortion there, are sent to conventional inner the gathering in the stranding machine then.
The rope of Huo Deing has just had the bigger a pair of line of diameter that is spirally wound on together like this, and they are in contact with one another, and every line of second centering all inserts between two lines of first pair, and with latter's extends parallel, keep suitable distance.
Like this, on the cross section of rope, just eliminated above-mentioned closed hole, guaranteed to be coated with all surfaces of full primitive line at gel stage elastomeric material.
Yet when the technical solution of this proposition was still in use born tractive force, the minor diameter line still can separate with large-diameter line.As above-mentioned open to the outside world rope, this also can cause do not wish the certain geometry and the structural instability that occur.
And, can't guarantee that the rope that obtains so all has accurate and regular geometry on each point of longitudinal length, because being the specific type by pre-shaping device, the stable mutual alignment of rope center line guarantees, but the distance between large-diameter line and minor diameter line can change on a lot of points longitudinally immediately, no matter whether rope is using.
A kind of forming method according to describing in the U.S. Pat 4258543 has used the roller preforming machine.Roller idle running also has several preformed seats, and each preformed seat is all fixed, so that can occupy an independently primitive line.
These typing seats are circumferential recess of roller surfaces, and their width equals the diameter of corresponding primitive line, and has the semicircular end of axis and other circumferential recess axis coplane.
Like this, the tension force that applies on line of bending radius by adjusting above-mentioned groove or adjustment just can be adjusted preformed.Yet because the action of preformed is on line often hindered by dynamic stranded tractive force, this solution also has problem.
In order to solve problem in the line gel deficiency of above-mentioned rope, this can cause undesirable corrosion subsequently, a solution is that rope generally should comprise line seldom, and the first line of wherein at least one foundation is out of shape in the preformed process, but obtains the discontinuous sample that a suitable broken string is arranged like this.
Such embodiment described in US5020312, the line of at least one rope be along rope vertically be one Z-shaped.
This will appear at rope vertically at least two approaching lines have continuous contact, will cause like this between above-mentioned two lines to have divided portion, for example can make the inlet of the Z-shaped crook of elastomeric material inflow line.
According to the fact disclosed herein, be suitable for constituting that one of rope or more line come out is to curl from memotron separately, be fed on a pair of opposed belt gear, above-mentioned line is by gear and along above-mentioned Z-shaped of axial formation.
Such pre-shaping device has a detailed description in US5581990.
Yet the greatest problem of the rope that the manufacturing of aforesaid operations method is come out is exactly the outer fiber of line has very big fragmentation at place, crooked summit.This situation makes the tired resistance of described rope unavoidably reduce, and therefore damages the performance of the tire that uses in the said method.
And, use to have that to come the pre-shaping device of the preformed head of axial deformation to above-mentioned one or more of tapes also be known technology.More specifically be, US5319915 disclose before stranded with bobbin to parallel plain location method.Above-mentioned plane has the preformed head that has comprised several pins, and pin is perpendicular to plane positioning, and well-regulated distance to each other.
As disclosed among the US5722226, above-mentioned pin can be positioned on the support of conical or cylindrical (both having needed not to be the plane), can be arranged in a straight line or be staggered, so that make line finish preformed along Z-shaped route.
Therefore, the location of this device be for make line alternately by and according to the order of head, whole device is around the axle rotation parallel with the axis of line simultaneously.
The applicant finds a kind ofly can be manufactured on the stranding device that has the mfg. metal cord that favorable elasticity penetrates between the line that forms mfg. metal cord, and rope also has good tired resistance than existing similar rope simultaneously.
Especially, the applicant finds that by a kind of moulding action of softness is provided to one or more metal wire that forms rope normally sinusoidal, the better tired resistance of Suo Huiyou for example, is compared with the rope of the pre-shaping device manufacturing of using belt gear.
More particularly, the applicant finds the ultimate elongation rate that rope constructed in accordance also have to increase, and catches up with to state existing line and compare, and rope penetrating greatly in elastomeric material increased.
A first aspect of the present invention is a kind of device of making mfg. metal cord, is used in particular for strengthening synthetic Resilient product.Said apparatus comprises:
A device that is used to make the mfg. metal cord that is particularly suitable for strengthening synthetic Resilient product comprises:
A support;
One is connected on the support and around a predetermined shaft rotor rotated;
A suspension bracket that is fixed on the support, its swinging axle overlaps with the rotating shaft of rotor;
The exercisable charging gear that is installed on the above-mentioned suspension bracket, several primitive lines can be provided from different feed pipes, above-mentioned primitive line forwards on the rotor along stranded route, the end of stranded route and the dead in line of above-mentioned rotor, and its core leaves above-mentioned rotation;
At least one pre-shaping device operationally is connected with suspension bracket and operation in described primitive line in respect to a section of the first end section upstream of stranded route,
It is characterized in that above-mentioned at least one pre-shaping device is suitable for above-mentioned primitive line is provided as the deformed sine wave that does not have sharp edge, both continuous bending can be arranged, and do not have the point of interruption.
Reasonable is that the first line of every foundation all has a pre-shaping device in the device of the present invention.
Be more preferably, it comprises the pre-shaping device of the every primitive line that is used for above-mentioned mfg. metal cord among the present invention.
Another aspect of the present invention relates to the process of making mfg. metal cord, is used in particular for strengthening synthetic Resilient product, and above-mentioned rope comprises at least two foundation unit line, and preferably between 0.10 to 0.50mm, said process comprises its diameter:
Make at least one above-mentioned primitive line generation permanent deformation by the sine wave that does not have sharp edge;
Utilize around the twisting longitudinal axis of described line around double helix described primitive line is twisted together.
Another aspect of the present invention relates to a kind of mfg. metal cord, is used in particular for strengthening synthetic Resilient product, comprises at least two primitive lines, and wherein at least one can be according to operation generation preformed of the present invention.
Another aspect of the present invention relates to a kind of tire for wheel, tyre surface that comprises a ring-type carcass in above-mentioned carcass periphery, the a pair of sidewall that has the axially facing that finishes with the bead of being strengthened by the tyre bead wire, being used for separately is fixed on tyre bead filler on the corresponding rim with tire, above-mentioned tire comprises that also the band metal adds the gelled fibre of wringing, comprise at least two primitive lines that are spirally wound on together and center on the longitudinally extending axis winding of rope, it is characterized in that at least one above-mentioned primitive line is by the sine wave generation permanent deformation that does not have sharp edge.
More advantages of the present invention and feature illustrate by more following embodiment preferably, and have accompanying drawing, and accompanying drawing comprises:
Fig. 1 has been to use the side view of the known wire twisting machine of pre-shaping device of the present invention;
Fig. 2 a and 2b are respectively expression pre-shaping device vertical view of the present invention and partial side view;
Fig. 3 is the part figure that has the tire cross-section of the part that comprises strengthening core of the present invention.
As shown above, label 1 expression of the present invention be specially adapted to synthetic Resilient product especially the metal of automobile tyre add and wring.
As everyone knows, rope 1 comprises several primitive lines, and the carbon of primitive line (acradlebon) composition is between 0.65% to 0.98%, and diameter, is spirally wound on the longitudinal axis of rope between the 0.50mm at 0.10mm.
Yet, though steel is owing to have better mechanical performance but first-selected material also can occur and the not enough shortcoming of vulcanized electrometric material adhesive force.Therefore, in order to obtain with vulcanized electrometric material enough adhesive force is arranged, the general steel capital can apply the suitable material of one deck.The first-selected brass of this coating material.Also can select other material for use, such as the alloy that contains copper, zinc, nickel, cobalt, manganese.Under the coating brass situation of first-selection, (form in sulfidation S-S), copper is a kind of composition of brass to adhesive force, covers on the metal reinforcement by form the curing bridge between elastic matrix and copper.
The known procedure that covers metal parts with layer of brass comprises two kinds: electroplate and thermal diffusion.First kind comprises electro-coppering and zinc.Second kind is included on the steel copper of electroplating one deck or multilayer, electroplates one deck zinc then, is with the heat treatment process of zinc thermal diffusion in the copper then, has so just formed layer of brass.
Reasonablely be, comprise the zinc of 30% to 40% weight and the copper of 70% to 60% weight in the layer of brass on these lines, be more preferably the zinc that comprises 32.5% weight and 67.5% copper, the thickness of the layer of brass of formation is about 0.25 ± 0.05 μ m.
Specific characteristic and constructive feature according to rope of the present invention can be more readily understood by following description, comprise the device and the manufacturing process of use.
What Fig. 1 represented is the example of wire twisting machine, is applicable to form the rope that comprises 5 foundation unit line.
Produce metal and add and wring 1 the known structure of machine and comprise a rotatable support 100 that rotor 5 is housed, rotor drives rotation by motor or similar device (not shown).And a suspension bracket (not shown) links to each other with above-mentioned support, and can shake with the rotating shaft of rotor 5.Several feed pipes 8 can be installed on the suspension bracket with turning round.The primitive line of at least one above-mentioned rope 1 is wrapped on each feed pipe.
And suitable unwinding device (not shown because be known and conventional) links together with feed pipe 8, and it can be contained on the suspension bracket, is suitable for guiding the primitive line that comes out from feed pipe 8.
In known manner, the primitive line that exports out from suspension bracket is rolled on the rotor 5 according to predetermined stranded route, the rotatablely moving of rotor 5 of utilizing said motor or equality unit to drive along stranded route forms rope 1, and the driving force that is applied on the rope with aggregation apparatus (because known and irrelevant not shown with the present invention) combines.
More special is, stranded route also comprises the first terminal 10a, and its rotating shaft with rotor 5 overlaps fully, determine by first rotary actuator 12, and firmly fixing by rotor 5, known assembly unit 11 comprises the dish that has 5 holes, dish is firmly fixing by suspension bracket.
Along the first terminal 10a, line bears the first screw twisted power around the rotating shaft of rotor 5, and twisting resistance is provided by the rotor of first rotary actuator 12.
Downstream at the first rotation roller 12, line arrives the middle part 10b of stranded route, and it stretches to rotor 5, and has taken place to move radially with respect to the rotating shaft of rotor, so that skip suspension bracket 7 and arrive the axial backward end that second transmission device, 13, the second transmission devices are securely fixed in rotor.
At last, the second terminal 10c appears in stranded route, and second end overlaps and pass second transmission device 13 with the rotating shaft of rotor 5.At second end, under the effect of the rotation traction traction power of the rotor 5 on second transmission device 13, the second torque meeting of primitive line forms, the forming process of the rope of being pulled out gradually by above-mentioned aggregation apparatus of being through with like this.
Ratio between rotor 5 rotary speeies is preferably between 2000-6000rpm, the draw speed of the rope 1 that is formed by the primitive line is preferably in 60-250m/min, draw speed has determined twisting pitch, and promptly above-mentioned primitive line is spirally wound on the rope 1 formed pitch of finishing.
In a better embodiment of the present invention, above-mentioned twisting pitch remains between 3mm-50mm, is more preferably at 6mm between the 30mm, preferably equals 16mm.
Following parts operationally are arranged in the suspension bracket according to the order of every primitive line on the passage of primitive line, say so more accurately in the upstream of relative assembly unit 11.Assembly unit 11 comprises: rotary actuator 14, a pre-shaping device 15 (as shown in Figure 2) and a rotary actuator 16, rotary actuator 16 comprise a pulley that has rotated 90 ° with respect to a pair of pulley among the present invention; The effect of the pulley of above-mentioned rotation is that the line that will come out from pre-shaping device 15 passes on the build-up member 11.
Shown in Fig. 2 a, pre-shaping device 15 of the present invention comprises a pair of pulley 200 and 201, and preferably a pair of iron pan, pulley are fixed on the proper supporting structure 202, can be around their axle rotation.Each pulley all has a lot of opposite opposed pins 203 and 204 that passes predetermined length that is suitable for, so that can cause axial deformation and flexural deformation simultaneously between the resulting respective pins that penetrates in the process pin that can onlinely pass first pulley 200 and pulley 201 time in above-mentioned a pair of pulley is driven by line and rotatablely moves.
More specifically be that the longitudinal axis of above-mentioned supporting construction is preferably perpendicular to the direction of advance of line after above-mentioned preformed operation is finished.
Above-mentioned pulley 200 and 201 is fixed on the above-mentioned supporting construction 202, and opposed, so that first pulley 200 fixes with respect to above-mentioned supporting construction, but can rotate freely around the axle vertical with the longitudinal axis L of supporting construction.
In contrast, this can move along the straight rail 205 on the supporting construction to second pulley 201 in the pulley, and be positioned on the position parallel with supporting construction longitudinal axis L, can allow second pulley 201 to adjust the distance of distance with respect to above-mentioned a pair of pulley by a suitable diagraph 206 like this.
And, as mentioned above, each pulley 200 and 201 in the pre-shaping device among the present invention all has the opposed pin 203 of many appropriate length and 204, opposed pin is vertically located in the surface of pulley, and it is continuous each other, so that adapt to the pulley profile, the pulley profile is determined by the predetermined pitch that axle base determined of adjacent pin.
Shown in Fig. 2 b, what Fig. 2 b represented is the partial side view of pre-shaping device of the present invention, in order to make the above-mentioned a pair of pulley of penetrating on the contrary of pin, the distance of the longitudinal axis L of their calcaneus branches support structures must be different, that is to say that the surface that reaches pulley belongs to two different surface p 1 and p2, they are parallel to each other, and are parallel to the plane of the longitudinal axis L that has comprised supporting construction.
And, penetrating in order to ensure above-mentioned, the pin 203 and 204 on first pulley 200 and second pulley 201 must be positioned on the facing surfaces, and like this, in the process of above-mentioned pulley rotation, pin separately will be on the relative position of reverse side.
More specifically be, this quantity that penetrates to the pin of pulley is variable, regulates by furthering or push away second movable pulley 201 far away on straight rail 205.This adjusting is finished by diagraph 206, and diagraph so that can determine the degree of passing of selling, and and then determines formation degree at the line in pre-shaping device of the present invention downstream through calibration.
Therefore, the penetration level of pin has been represented the length feed amount of the relative supporting construction 202 of second movable pulley 201 on fixing first pulley, 200 directions.
Special, above-mentioned degree of passing has also been represented the distance D between the axle of the axle of the pin of first on the fixed block 200 203 and second pin 204 on the movable pulley 201.Above-mentioned second pin 204 is in position adjacent with respect to first pin, and above-mentioned like this distance D is measured in the penetration region of above-mentioned first and second pins.Above-mentioned zone has determined the preformed route of above-mentioned line.
At last, wire twisting machine comprises that also a stretching device (capstan winch), collection finish for example false twisting machine of the device of rope and common line coalignment, eliminates residual stress on the line with it.Because these devices are known and conventional, and do not get in touch especially, so do not describe with the object of the invention.
According to one embodiment of present invention, stranded operation is in order to have at least a line said method according to the present invention to make in the rope that guarantees to finish, and other line of above-mentioned rope method all of the prior art is made.For example, above-mentioned other line is made by the roller preforming machine, as described in U.S. Pat 4258543.
According to an embodiment preferably of the present invention, the pulley that uses in pre-shaping device is all identical, and identical diameter is promptly arranged.
Because the structure of pre-shaping device 15, it can obtain a line that is deformed sine wave, and the plane at line place is parallel between plane P 1 that includes pulley surface and P2 and with them.Sharp edge, spike and otch from the teeth outwards can not appear in above-mentioned line.The alternately distortion that round profile determined by pin can appear in the primitive line of the pin by two pulleys, therefore the part that occurs above-mentioned sharp edge, spike and otch on the outer surface that can be not online, and these can appear on the line that a pair of belt gear of the prior art produces.In fact, above-mentioned belt gear is because their geometry deformation, online forming process roll the surface that can cut to line in the action inevitably.As mentioned above, this rolls the tensioning that action can cause line.
Table 1 has shown the constructive parameter of major technique of an embodiment of pre-shaping device 15 among the present invention.According to this embodiment, the diameter that the pulley in apparatus of the present invention has the pin of same diameter, similar number and pin is also identical.Yet other embodiment also may be different, for example the diameter difference of pulley pin.
Table 1
| Pin diameter (mm) | The pin number | Pin pitch (mm) | Pin maximum penetration degree (mm) | Pin maximum penetration degree (mm) | Pin maximum penetration degree (mm) | Pin maximum penetration degree (mm) |
| Linear diameter 0.12 | Linear diameter 0.25 | Linear diameter 0.35 | Linear diameter 0.38 | |||
| ????1 | ????48 | ????2 | ????0.480 | ????0.430 | ????0.357 | ????0.325 |
| ????1.5 | ????32 | ????3 | ????0.740 | ????0.710 | ????0.663 | ????0.640 |
| ????2 | ????24 | ????5 | ????0.990 | ????0.968 | ????0.936 | ????0.925 |
| ????3 | ????16 | ????7.6 | ????1.495 | ????1.479 | ????1.458 | ????1.450 |
| ????4 | ????12 | ????9.8 | ????1.996 | ????1.984 | ????1.969 | ????1.963 |
| ????5 | ????12 | ????11.13 | ????2.497 | ????2.487 | ????2.475 | ????2.470 |
According to machine parameter, only selective value is particularly by the profile satisfactory value decision of the satisfaction of for example forming wire, the diameter of line (0.10 to 0.50mm) and funiculus posterior medullae spinalis.And, it should be noted that the tractive force that is applied on the rope also depends on the selection of the accurate procedure parameter of doing according to the characteristics of service machine, for example speed of the angle of torque, rotor, twisting pitch.
It should be noted that production has the rope of high elasticity feature like this, the rope of especially above-mentioned gelled fibre content preferably uses all lines to form above-mentioned rope in above-mentioned forming process.
Yet,, can form rope with a limited number of line if major requirement is the penetration of rubber in the rope.Concrete number is that the basis is decided by line sum and required penetration.
What Fig. 3 represented is to have the all-purpose tire that adds the gelled fibre of wringing of the present invention.As shown in the figure, this tire comprises a carcass 100, be preferably in inner by rubber sealant 110 coverings, also have one to be positioned at carcass tyre surface 120 and a pair of axial surface sidewall 130 on every side, sidewall finishes with the bead of being strengthened by tyre bead wire 150 140, and tire is used for above-mentioned tire is fixed to independently bead filler cells 160 on the respective fixation wheel rim 170 in addition.This tire also comprises stiffened edge 190 usually, in radial, inserts the band structure 210 between carcass and the tyre surface in addition.
With 230 and 240 all is partly to be made of the gelled fibre that has mfg. metal cord, mfg. metal cord is parallel to each other in every band, intersected with each other in adjacent band, preferably with respect to the symmetrical angulation in surface, the equator of tire between 10 °-30 °, with 250 ropes that circumferential location arranged, rope can be 0 ° with respect to above-mentioned equatorial plane angle simultaneously.Under special truck tyre or similar situation, can constitute in the face of the band that claims the location with respect to tire equator by a pair of with 250.In truck tyre, a subband (not shown) can be used in respect to band structure 210 outsides, and become 10 °-70 ° add to wring auxiliary having with respect to the equatorial plane, and this Suo Tongchang is called " brake layer ".
Same, other structure member of tire also can partly be made of the gelled fibre that has with axially, radially and/or circumferentially becoming adding of proper angle to wring as required.For example, above-mentioned stiffened edge 190 can be made of the inclination rope that has 30 °-60 ° of axial angles.
The example of a tire is that (5 * 0.35, the 16mm pitch promptly is 5 tires that the line series connection forms of 0.35mm by diameter) made by program of the present invention.The line that constitutes above-mentioned rope is to be made by the iron of carbon containing 0.7%.And above-mentioned line still is that brass applies, the brass of 1kg iron coating 3.74g; In brass, 64.4% copper is arranged preferably.It is the pin of 1.5mm that the pre-shaping device 15 that is used for obtaining above-mentioned rope according to the present invention has diameter, and to be formed with the line of waveform (sine), the width of waveform is 0.75mm, and pitch is 3.25mm.
Table 2 has shown the contrast experiment's of the same size rope of making at 5 * 0.35 ropes of making according to traditional belt gear method with according to the inventive method result.Numerical value in the table 2 is the arithmetic mean of instantaneous value of a large amount of experimental results.
Table 2
| Major parameter | The rope that belt gear is produced | The rope that the inventive method is produced |
| Rope diameter (mm) | ?????1.22 | ?????1.11 |
| Suo Chongliang (KTex) | ?????3.93 | ?????3.88 |
| Tensile strength (hungry area rope) (N) | ?????1070 | ?????1089 |
| Ultimate elongation (hungry area rope) (%) | ?????4.77 | ?????5.92 |
| Tensile strength (gel/sulfuration rope) (N) | ?????1060 | ?????1125 |
| Ultimate elongation (gel/sulfuration rope) (%) | ?????4.36 | ?????6.30 |
| Flexural fatigue (thousand times (Kcycles)) | ?????5405 | ?????7970 |
| Fabric penetrates (natural) (mm 3/ centimetre rope) | ?????0.56 | ?????1.07 |
| Fabric penetrates (sulfuration) (mm 3/ centimetre rope) | ?????0.03 | ?????0.05 |
The experiment of tensile strength and ultimate elongation rate can the hungry area rope and embed elastomer matrix or according to the rope in the sulfide of the typical method manufacturing of prior art on carry out.
Crooked fatigue experiment is also named FFF (Firestone crooked fatigue experiment) or Wallace experiment, carries out on a gelled fibre band.Above-mentioned band is through a series of bend cycles, circulation be by with the gel example in add and wring the corresponding enough stress in advance of size the gel tape alternation is wrapped on the roller of suitable dimension.
Above-mentioned experiment is to finish on a gelled fibre band of strengthening by mfg. metal cord, and the thickness of rope is 100 rope/decimetres, applies the stress in advance of 150 pounds (68kg) by leverage to roller, and the diameter of roller is 50mm.Leverage is applied to roller and therefore is applied to opposite power that equals above-mentioned weight on the sample.Behind the sample location, the traction circulation of the above-mentioned alternating movement of experimental calculation.After sample fracture, experiment finishes.
The experiment that penetrates about fabric comprises the penetration of measurement rubber between the line that forms above-mentioned rope, and the result can differentiate the quality of the resilient coverings on above-mentioned every line.A suitable funnel of being made by glass is upside down in the bottom of the bowl that fills ethanol.This funnel has a scale along cylinder, and at this cylindrical end, funnel is connected with a suction apparatus of generally being controlled by the operator.Suction apparatus can make the ethanol in cylinder rise and arrive a predetermined level, is called zero level.In this operation, the sample of needs checks with band of above-mentioned size 5cm * 5cm is immersed in the bowl and is positioned at the import of funnel.Ethanol have can deaeration characteristic, so just can be in elastic matrix the position of air.Above-mentioned relatively zero liquid level of ethanol liquid level in the scale body is reduced.Such measurement will be found the volume that air occupies in the online embedded elastomeric material, therefore assert the penetration of rubber between the line in rope.This experiment can be carried out on natural sample and sulfuration sample.
By the data in the analytical table 2, very obvious, the same Suo Youyue that the physical property of the rope of producing according to technology of the present invention is produced than the belt gear preforming process many.
In an embodiment of the present invention, the ultimate elongation rate of rope is very high, and its tensile strength also is greatly improved.This makes will the getting well of mechanical property ratio prior art of rope.
And resulting result has confirmed that also good rubber penetrates and quite high ultimate elongation rate, therefore causes the elasticity of rope very good.When rope is to be used to making when adding the elastomer of wringing in the tire, the result is very satisfactory.
The achievement that the present invention can obtain also has, the penetration of good pin, and the good forming degree of the line of consequent formation rope, corresponding therewith good rope extensibility.
The present invention is specially adapted to produce 1 * 5 * 0.35 rope.This rope is particularly suitable for being used in the brake ribbon in the band that forms high-capacity tyre for example, and tire is adapted at using on the cross-country road.
It should be noted that the resulting rope of the present invention can be used in makes adding in any elastic tyre and wrings, and is particularly suitable for making the rope of high extensibility, for example is used in the stiffened edge 190 shown in Fig. 3.
In fact, applicant's ultimate elongation rate of also finding 1 * 5 * 0.35 rope is significantly better than widely used 3 * 4 * 0.22 rope.Above-mentioned rope comprises 3 twisted wires, and each all is made of the line of four 0.22 diameters.
More specifically be, the ultimate elongation rate of 3 * 4 * 0.22 hungry area rope is 5.5%, and this value drops to and is approximately 3% after sulfuration.On the other hand, in the present invention, the ultimate elongation rate of 5 * 0.35 ropes is about 6% after sulfuration.The above-mentioned fact can make rope be widely used in the brake layer of high-capacity tyre, and tire must absorb vibrations unexpected on the cross-country road.
And, above-mentioned feature can also increase on cost, production time and productivity ratio, because two necessary working cycles have very limited twisting pitch (each twisting pitch are 3.15mm especially in making 3 * 4 * 0.22 rope process, last rope equals 6.3), and the present invention only needs a working cycles, and higher pitch (can reach 16mm) is arranged.
And, replace 3 * 4 * 0.22 all right more appropriate drawing process of preformed of rope with 5 * 0.35 ropes, can save the working time and reduce wear and tear in machines.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98830785 | 1998-12-24 | ||
| EP98830785.6 | 1998-12-24 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100115834A Division CN100336672C (en) | 1998-12-24 | 1999-12-14 | Method and device for mfg. metal cord for reinforcing elastomeric products, particularly tyres |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1331769A true CN1331769A (en) | 2002-01-16 |
| CN1206402C CN1206402C (en) | 2005-06-15 |
Family
ID=8236933
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998149713A Expired - Lifetime CN1206402C (en) | 1998-12-24 | 1999-12-14 | Method and device for reinforcing elastic products, especially metal cords of tires |
| CNB2004100115834A Expired - Lifetime CN100336672C (en) | 1998-12-24 | 1999-12-14 | Method and device for mfg. metal cord for reinforcing elastomeric products, particularly tyres |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100115834A Expired - Lifetime CN100336672C (en) | 1998-12-24 | 1999-12-14 | Method and device for mfg. metal cord for reinforcing elastomeric products, particularly tyres |
Country Status (13)
| Country | Link |
|---|---|
| EP (1) | EP1141477B1 (en) |
| JP (1) | JP4741080B2 (en) |
| CN (2) | CN1206402C (en) |
| AT (1) | ATE255186T1 (en) |
| AU (1) | AU765054B2 (en) |
| BR (1) | BR9916547B1 (en) |
| CZ (1) | CZ20012278A3 (en) |
| DE (1) | DE69913200T2 (en) |
| ES (1) | ES2212664T3 (en) |
| RU (1) | RU2232837C2 (en) |
| SK (1) | SK9222001A3 (en) |
| TR (1) | TR200101842T2 (en) |
| WO (1) | WO2000039385A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1717516B (en) * | 2002-11-25 | 2010-12-01 | 株式会社普利司通 | Twister, manufacturing method of twisted yarn, ply and pneumatic tire |
| CN102587176A (en) * | 2012-02-22 | 2012-07-18 | 常州贝斯塔德机械科技有限公司 | Twelve-cradle device |
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| US7552753B2 (en) * | 2000-12-27 | 2009-06-30 | Pirelli Pneumatici S.P.A. | Tire for a vehicle wheel comprising at least one single strand metallic reinforcing cord |
| EP1439967B1 (en) | 2001-10-30 | 2010-04-28 | Pirelli Tyre S.p.A. | Tyre with bead core comprising preformed wires |
| WO2007073776A1 (en) | 2005-12-23 | 2007-07-05 | Pirelli Tyre S.P.A. | Pneumatic tire having an improved belt structure |
| CN102982909B (en) * | 2012-11-22 | 2016-06-15 | 安徽天星光纤通信设备有限公司 | A kind of pair twister takeup tension controls device |
| FR3022833B1 (en) * | 2014-06-30 | 2017-03-10 | Michelin & Cie | DEVICE AND METHOD FOR PREPARING A REINFORCING STRIP FOR THE MANUFACTURE OF TIRES |
| US10835973B2 (en) | 2014-10-31 | 2020-11-17 | Bekaert Binjiang Steel Cord Co., Ltd. | Shaped saw wire with controlled curvature at bends |
| CN207615563U (en) * | 2017-07-18 | 2018-07-17 | 江阴贝卡尔特合金材料有限公司 | Equipment for being continuously formed forming saw silk |
| EP3697631B1 (en) * | 2017-10-20 | 2021-10-20 | Compagnie Générale des Etablissements Michelin | Tyre comprising reinforcing elements in the form of laminated strips |
| EP3960930A4 (en) * | 2019-04-25 | 2022-11-23 | Trefil Arbed Korea Co., Ltd. | STEEL ROPE FOR RUBBER REINFORCEMENT AND METHOD OF MANUFACTURING THEREOF |
| CN113699812A (en) * | 2021-08-23 | 2021-11-26 | 湖北三江航天江北机械工程有限公司 | Wire rope line concentration equipment |
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| SU1362763A1 (en) * | 1986-04-10 | 1987-12-30 | Харьковский политехнический институт им.В.И.Ленина | Preforming device for rope-twisting machine |
| US4934429A (en) * | 1987-11-06 | 1990-06-19 | Bridgestone Corporation | Low-section pneumatic radial tires |
| US5213652A (en) * | 1989-09-11 | 1993-05-25 | The Yokohama Rubber Co., Ltd. | Pneumatic radial tire including 1×2 steel cords |
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| JP3538205B2 (en) * | 1992-03-09 | 2004-06-14 | 住友ゴム工業株式会社 | Steel cord for tire carcass, steel cord for tire filler, and tire using the same |
| CA2080852A1 (en) * | 1992-04-13 | 1993-10-14 | Pedro Yap | Truck tire with split overlay |
| JPH07242102A (en) * | 1993-11-29 | 1995-09-19 | Bridgestone Corp | Pneumatic tire for heavy load |
| US5581990A (en) * | 1994-04-07 | 1996-12-10 | N.V. Bekaert S.A. | Twisting steel cord with wavy filament |
| US5743975A (en) * | 1995-03-24 | 1998-04-28 | The Goodyear Tire & Rubber Company | Radial medium truck tire with organic polymer reinforced top belt or breaker |
| JP2920477B2 (en) * | 1995-05-23 | 1999-07-19 | 東京製綱株式会社 | Steel cord for rubber reinforcement and radial tire |
| JP2896976B2 (en) * | 1995-06-27 | 1999-05-31 | 東京製綱株式会社 | Steel cords for construction vehicles and tires for construction vehicles |
| FR2740733A1 (en) * | 1995-11-08 | 1997-05-09 | Michelin & Cie | RADIAL "HEAVY-DUTY" TIRE WITH SUMMIT FRAME HAVING A MULTI-PARTITE TABLECLOTH |
| IT1277689B1 (en) * | 1995-12-21 | 1997-11-11 | Pirelli | METALLIC STRENGTHENING CORD TO BE USED PARTICULARLY IN COMPOSITE ELASTOMERIC MATRIX PRODUCTS PROCEDURE AND APPARATUS |
| JP3576321B2 (en) * | 1996-07-09 | 2004-10-13 | 東京製綱株式会社 | Equipment for corrugating steel wires for reinforcing rubber products |
| FR2759945B1 (en) * | 1997-02-24 | 1999-04-02 | Michelin & Cie | T / H SHAPE TIRE LESS THAN OR EQUAL TO 0.6 |
| CN2299737Y (en) * | 1997-06-04 | 1998-12-09 | 蓝春福 | Motorcycle safety tire with improved structure |
-
1999
- 1999-12-14 CZ CZ20012278A patent/CZ20012278A3/en unknown
- 1999-12-14 AU AU20982/00A patent/AU765054B2/en not_active Ceased
- 1999-12-14 WO PCT/EP1999/010055 patent/WO2000039385A1/en not_active Ceased
- 1999-12-14 DE DE69913200T patent/DE69913200T2/en not_active Expired - Lifetime
- 1999-12-14 RU RU2001120721/12A patent/RU2232837C2/en not_active IP Right Cessation
- 1999-12-14 CN CNB998149713A patent/CN1206402C/en not_active Expired - Lifetime
- 1999-12-14 AT AT99965484T patent/ATE255186T1/en not_active IP Right Cessation
- 1999-12-14 BR BRPI9916547-3A patent/BR9916547B1/en not_active IP Right Cessation
- 1999-12-14 EP EP99965484A patent/EP1141477B1/en not_active Expired - Lifetime
- 1999-12-14 TR TR2001/01842T patent/TR200101842T2/en unknown
- 1999-12-14 CN CNB2004100115834A patent/CN100336672C/en not_active Expired - Lifetime
- 1999-12-14 JP JP2000591265A patent/JP4741080B2/en not_active Expired - Fee Related
- 1999-12-14 ES ES99965484T patent/ES2212664T3/en not_active Expired - Lifetime
- 1999-12-14 SK SK922-2001A patent/SK9222001A3/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1717516B (en) * | 2002-11-25 | 2010-12-01 | 株式会社普利司通 | Twister, manufacturing method of twisted yarn, ply and pneumatic tire |
| CN102587176A (en) * | 2012-02-22 | 2012-07-18 | 常州贝斯塔德机械科技有限公司 | Twelve-cradle device |
| CN102587176B (en) * | 2012-02-22 | 2016-08-03 | 常州贝斯塔德机械股份有限公司 | 12 cradle devices |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100336672C (en) | 2007-09-12 |
| TR200101842T2 (en) | 2002-01-21 |
| BR9916547B1 (en) | 2010-02-09 |
| WO2000039385A1 (en) | 2000-07-06 |
| EP1141477A1 (en) | 2001-10-10 |
| RU2232837C2 (en) | 2004-07-20 |
| BR9916547A (en) | 2001-09-04 |
| DE69913200T2 (en) | 2004-09-02 |
| CZ20012278A3 (en) | 2001-12-12 |
| ES2212664T3 (en) | 2004-07-16 |
| JP4741080B2 (en) | 2011-08-03 |
| DE69913200D1 (en) | 2004-01-08 |
| ATE255186T1 (en) | 2003-12-15 |
| CN1636771A (en) | 2005-07-13 |
| EP1141477B1 (en) | 2003-11-26 |
| AU765054B2 (en) | 2003-09-04 |
| SK9222001A3 (en) | 2002-02-05 |
| JP2002533586A (en) | 2002-10-08 |
| CN1206402C (en) | 2005-06-15 |
| AU2098200A (en) | 2000-07-31 |
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