CN100548653C - Be used to produce the method and system of annular coaxial stranded bead cord - Google Patents
Be used to produce the method and system of annular coaxial stranded bead cord Download PDFInfo
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- CN100548653C CN100548653C CNB2005800306656A CN200580030665A CN100548653C CN 100548653 C CN100548653 C CN 100548653C CN B2005800306656 A CNB2005800306656 A CN B2005800306656A CN 200580030665 A CN200580030665 A CN 200580030665A CN 100548653 C CN100548653 C CN 100548653C
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Abstract
A kind of system that is used to produce annular coaxial stranded bead cord wherein can guarantee operating winding fast, good coiling performance and good forming property, can not cause disturbance in the layout of bead cord (2).Spool (21) forms in the pre-position and laterally moves back and forth on the core surface of annular core (1), and annular core (1) forms around fulcrum, promptly becomes the fixture unit (13) of the winding point of bead cord (2), carries out pendular movement.Because spool (21) remains unchanged basically to the distance of the winding point of bead cord (2), so the bead cord of presenting out from spool (21) (2) can not relax when reeling and can center on annular core (1) coiling under constant tension force.Be used for by centering on the system of annular core coiling bead cord with respect to the annular core mobile bar in the boxlike mode, by spool during near annular core on the contrary rotating scroll prevent that bead cord is lax.
Description
Technical field
The present invention relates to a kind of method and apparatus that embeds the bead cord in the pneumatic tire bead that forms, relate in particular to a kind of sheath that comprises annular core and form by the steel wire of reeling around annular core or the annular concentric bead cord of a plurality of sheaths.
Background technology
The annular concentric bead cord is used for multiple doughnut.Typical annular concentric bead cord is shown in Figure 17 (a) and 17 (b).As shown in the figure, this bead cord comprises annular core 1 and sheath, this sheath by in the inside and outside position of the circle that limits by annular core, repeatedly make the coiling steel wire pass the plane of annular core, coiling steel wire 2 is reeled around annular core 1 to be formed.
The following method that is used to form this annular concentric bead cord is known.In patent document 1 disclosed method, bead cord uses a coiling steel wire to form, and this coiling steel wire is easy to twist into the circle of diameter greater than two times of annular core diameters.The rigidity of the bead cord of Xing Chenging is enough big thus, therefore can improve gripping, turning power and the response of the tire that uses this bead cord.
In patent document 2 disclosed methods, as shown in figure 18, the front end of coiling steel wire adopts jig to be secured to annular core 1 temporarily, and annular core 1 is along the circumferential direction rotated, simultaneously around annular core 1 spinning reel 3, thereby spirality ground is around annular core this coiling steel wire of reeling.Before spinning reel 1 and jig were interfered, this jig was removed.Then, spool rotates continuously.In the method, can alternately reel this coiling steel wire to form multilayer along S and Z direction.Therefore, the entanglement of the steel wire 2 that can prevent to reel and turn round volume improves the productivity ratio and the quality of coiling steel wire thus widely.
In the method that forms patent documentation 3 disclosed bead cords, the front end of coiling steel wire is not fixed to annular core, but tangle with this annular core, perhaps be secured to annular core provisionally, thereby this coiling steel wire can freely be rotated, be diameter by moving less than the annular core diameter along the bending of spool plane and with the spool that is wound with the coiling steel wire on it, and vertically and rotationally move this annular core simultaneously, the coiling steel wire is eliminated simultaneously and is turned round volume stress owing to the folding s tress of steel wire centers on the annular core entanglement.
In patent documentation 4 disclosed methods, as shown in figure 20, the spool 3 that is wound with the coiling steel wire on it is fixed on the precalculated position, be used for along the driver element 4 of circumference rotary annular core 1 along straight line being arranged between this position, outside (by the position shown in the solid line of Figure 20) of the circle that limits by annular core 1 and this position, inside (by the position shown in the dotted line of Figure 20) that spool 3 is positioned at the circle that is limited by annular core 1 and move back and forth at spool 3, because spool 3 is positioned at the inside and outside of the circle that limited by annular core 1, thereby this spool 3 is transmitted and moves the plane that strides across annular core, reels from the coiling steel wire of spool 3 unwindings around annular core 1 thus.
Patent document 1:JP patent documentation 3499261
Patent document 2:JP patent documentation 2001-47169
Patent document 3:JP patent documentation 2004-98640
Patent document 4:WO2004/018187A1 (Figure 13)
Summary of the invention
The technical problem that the present invention solves
For bead cord, shape stability is most important mass property.At this on the one hand, the bead cord that forms by disclosed arbitrary method in the above-mentioned patent document has following problems.
In patent document 1 disclosed method, for the rigidity of the tire that increases the bead cord that use forms by this method, reeling around annular core is easy to twist into the coiling steel wire of diameter greater than the circle of two times of annular core diameters.Be difficult automatically around the annular core this coiling steel wire of reeling.Therefore cost is very high.Because the coiling steel wire is easy to twist and becomes to have large diameter circle, so manual this steel wire of reeling is a trouble.Equally, because that the coiling steel wire is easy to twist is circular, so resistance is bigger when be drawn out, this can increase the possibility that the time goes wrong around the annular core coiling when the coiling steel wire.In addition, though the coiling steel wire just reel around annular core after on being wound up into spool, so be necessary to keep tension force to be applied to the coiling steel wire with predetermined, thereby the unclamping of the steel wire that prevents to reel.But too many tension force can cause the annular core tensioning and be difficult to reel this coiling steel wire.
In patent document 2 disclosed methods, because coiling steel wire employing jig is secured to annular core provisionally, and spool fluctuates so the winding angle of coiling steel wire is easy to produce significantly center on the annular core rotation in the annular core that rotates in a circumferential direction.Equally, annular core and coiling steel wire move in the mode of waste, and equipment itself is big and heavy.
Equally, in patent document 2 disclosed methods, because spool 3 is as shown in figure 18 around annular core 1 rotation, so coiling steel wire 2 changes to about 50 with angle β s between annular core 1 plane from 0 degree (Figure 19 (a)) and spends (Figure 19 (b)) when the coiling steel wire is reeled around annular core.Usually, what the bead cord that uses in the tire of selling on the market had 3.5 to 5.5 degree in the l+m of motorcycle tyre turns round volume structure turns round volume angle β, the l+m+n of passenger car and small truck turn round have about 7 degree in the volume structure turn round volume angle β.Therefore, in the method for patent document 2 since angle β s with turn round volume angle β compare very big, so coiling steel wire 2 is easy to not too equably to arrange around annular core.Therefore, the formability of coiling steel wire is relatively poor.
In patent document 2 disclosed methods, spool 3 is around annular core 1 rotation, because spool 3 moves along circular path, so its displacement is long and therefore need the long time could center on annular core this coiling steel wire of reeling.Owing to when annular core is reeled, uniform pulling force is applied to coiling steel wire 2 at the coiling steel wire, so annular core is easy to be pulled along circumferential direction.Therefore, the coiling steel wire can't be reeled around annular core efficiently and successfully.
In patent document 3 disclosed methods, the annular core of horizontal location is carried out complicated motion, makes angle β s be easy to fluctuate fiercely as the method for patent document 2.Therefore, the coiling steel wire can't stably be reeled around annular core.Between the moving horizontally of spool, need the time interval, need spend time of twice thereby make around annular core this coiling steel wire of reeling.In order to improve the coiling characteristic, be necessary around annular core mobile minimum of a value that is restricted to annular core when reeling this coiling steel wire.Especially, because annular core is placed and vertically moved along gravity direction along gravity direction, and the spool of this coiling steel wire of reeling on it is mobile intermittently, so the coiling characteristic is relatively poor.
In patent document 4 disclosed methods, as shown in figure 20, under the situation that spool 3 is fixed, driver element 4 itself moves back and forth between the position of this position, the inside of the circle that is limited by annular core 1 and circle outside at spool 3 linearly, makes annular core 1 move towards and away from spool 3.When annular core 1 when spool 3 moves, coiling steel wire 2 is pushed along the direction of unclamping.On the contrary, when annular core 1 moved away spool 3, coiling steel wire 2 was pulled.Therefore, along with moving of annular core 1, the coiling steel wire begins to move significantly around the coiling starting point that annular core 1 is reeled, and therefore is difficult to reel this coiling steel wire so that it arranges evenly with smooth around annular core.
The purpose of this invention is to provide a kind of method and apparatus that is used to form the annular concentric bead cord, thus can be around annular core this coiling steel wire of apace, efficiently and flatly reeling.
The method that solves this technical problem
According to the present invention, a kind of method that forms the annular concentric bead cord is provided, wherein, annular core is along rotating in a circumferential direction, the spool that is wound with the coiling steel wire on it strides across described annular core plane and repeatedly moves back and forth, simultaneously described spool is in the inside and outside of the circle that limited by described annular core, thus from the described coiling steel wire of described spool unwinding, and continuously with spirality ground around the reel coiling steel wire of unwinding thus of described annular core, thereby form a sheath or a plurality of sheath, it is characterized in that described spool strides across the flatness and reciprocator of described annular core and moves, make the angle β that forms between described coiling steel wire and the described annular core plane
SCan not surpass 29 degree.
Because spool moves and strides across the annular core plane so that the angle β of above-mentioned qualification
SThe coiling steel wire can not surpass 29 degree, so can efficiently and equably be reeled around annular core.
The invention provides two kinds of arrangements, be used to limit described angle angle β
SCan not surpass 29 degree.
First arrangement is the swing type arrangement, repeatedly swings between the second place of the coiling starting point that wherein said annular core begins to reel around described annular core about described coiling steel wire, the primary importance of inside that is in the circle that is limited by described annular core at described spool and the outside that described spool is in described circle.By striding across the annular core plane at the first and second position mobile bars, can minimize spool and stride across the distance that move on the annular core plane, therefore minimize the above-mentioned angle β when this coiling steel wire is reeled around annular core in spirality ground
S
By swinging annular core around the coiling starting point, the distance between spool and the coiling starting point remains basically unchanged.Therefore, can apply constant tension force to the coiling steel wire when reeling this coiling steel wire around annular core, the steel wire that prevents from simultaneously to reel is lax.Therefore this coiling steel wire can reel around annular core equably.
In the second arrangement kind, spool moves to extend box-like mode, and its central axis is on the annular core plane.Specifically, described spool is parallel to described annular core plane towards described coiling starting point and moves, and moves perpendicular to described plane, is parallel to described plane and moves away described coiling starting point, and move perpendicular to described plane.Adopt this structure, can minimize the ultimate range of spool rang ring core facial planes, minimize above-mentioned angle β thus
S
In this arrangement, the position of tooth bar setting makes the top of described spool move along described tooth bar when the coiling starting point of described annular core moves at described tooth bar, thereby gear is arranged on the described spool back and described spool engagement, thus along with described coiling steel wire along with described spool rotates described spool near described annular core in the opposite direction from the side of described spool unwinding.Adopt this structure, when spool during near annular core, the coiling steel wire can not relax, and makes the coiling steel wire to reel and not crooked around annular core.Therefore improved the degree of be shaped of steel wire.In this arrangement, spool moves in box-like mode, spool during near the coiling starting point this spool with opposite direction rotation, thereby prevent the lax of steel wire of reeling.So do not need the coiling steel wire is wrapped on the spool with the coil diameter less than reel diameter in advance and rebound by force on spool, to produce.Just, even the initial coil diameter of coiling steel wire is bigger, the coiling steel wire can not tangle in spool yet, thereby can be by increasing the stand-by time that coiling steel wire the amount on the spool of being wrapped in reduces this equipment.Equally, be wrapped in the upper limit of the initial coil diameter of the coiling steel wire on the spool, can increase the enterolithic resistance in the plane of bead cord by increase.
In above-mentioned two types, before described coiling steel wire is reeled around described annular core spirality ground, from the leading end of the described coiling steel wire of described spool unwinding by sulfuration or semi-cure sheet rubber are not secured to described annular core provisionally.Because the material of half finished rubber is identical with the material of rubber for tire, so need in step after a while, it not removed.
Prevent the rigidity of heaving and disperseing effectively the coiling steel wire of steel wire of reeling in order to center on when annular core is reeled, thereby the coil diameter adjustment that is wrapped in the coiling steel wire on the described spool is satisfied following formula on spirality ground:
0.90D
R≤D
SO≤3.3D
R
Perhaps
0.55D
C≤D
SO≤2.0D
C
Wherein, D
RBe the overall diameter of described spool, D
SOBe the initial coil diameter that is wrapped in the coiling steel wire on the described spool, D
CIt is the diameter of a circle that limits by described annular core.
Unclamp a little when steel wire centers on the annular core coiling on spirality ground in order to allow to reel, steel wire heave thus prevents to reel, spool preferably rotatably is contained in the box that comprises cylindrical outer wall, the diameter of this cylinder is less times greater than the overall diameter of described spool, width is corresponding to the insied width of described spool, and form a hole, described coiling steel wire passes this hole and pulls out from described box.
Be used to form swing type wire-shaped forming apparatus according to annular concentric bead cord of the present invention, comprise the driver element that is used for along the annular core that rotates in a circumferential direction, being used for being wound on coiling steel wire on the spool is supplied to and is used for around the reel fixed supply unit of winding station of described coiling steel wire of described annular core, be used for swinging the swing unit of described annular core along the coiling starting point on described annular core plane about described winding station, and on the both sides on described annular core plane, the spool connecting gear positioned opposite to each other that separates at interval with described annular core, described feed unit comprises described spool, described swing unit is at described spool between the second place of the primary importance of inside of the circle that is limited by described annular core and the outside that described spool is in described circle swings described annular core about described coiling starting point, and described spool strides across the annular core plane at the place, fixed position and moves.
This driver element comprises two pressure rollers, be used for stably the rotary annular core and do not slide simultaneously, and fixture unit, this unit is provided with more near feed unit, be used to locate the coiling starting point, keep the complete perimeter of coiling starting point simultaneously and prevent that side direction from running out of.
Be used for comprising the driver element that is used for along the annular core that rotates in a circumferential direction by the equipment that forms the annular concentric bead cord with box-like mode mobile bar; Be used for being wound on coiling steel wire on the spool and be supplied to and be used for around the reel feed unit of winding station of described coiling steel wire of described annular core, described feed unit comprises described spool; Be used for moving the sliding unit of described spool, that is carried out mobilely is parallel to described annular core, from the outside of the circle that limits by described annular core and be in the second place that primary importance on the side on described annular core plane moves to the inside of described circle, described spool striden across and perpendicular to described annular core plane with the 3rd position (the coiling steel wire arrives this point around annular core coiling half way around) on the opposite side that only is enough to move the short distance that strides across the annular core plane and moves to described annular core plane, described spool is parallel to the 4th position that described annular core plane moves to the outside of the circle that is limited by described annular core, and described spool striden across and moves to primary importance (the coiling steel wire has been reeled to have forwarded to entirely around annular core and reached this point) perpendicular to described annular core plane; And prevent the mechanism that described coiling steel wire unclamps, described mechanism comprises tooth bar, the position of described tooth bar makes the top of described spool move along described tooth bar when the coiling starting point of described annular core moves at described spool, thereby and be arranged on described spool back and described spool meshed gears, thus along with described coiling steel wire along with described spool rotates described spool near described annular core in the opposite direction from the side of described spool unwinding, prevent the lax of steel wire of reeling thus.
In this arrangement, spool moves in box-like mode, when spool around annular core when the coiling starting point of coiling steel wire moves, spool rotates in the opposite direction, thus the steel wire that prevents to reel is lax.
Advantage of the present invention
As mentioned above, according to the present invention, can be around reel apace, successfully and efficiently this coiling steel wire and easily form the annular concentric bead cord of annular core, the coiling steel wire of this bead cord is reeled around annular core with enough homogeneity.
Description of drawings
Fig. 1 is the perspective view according to swing cord forming device of the present invention that is used to form the annular concentric bead cord.
Fig. 2 is the front view of the equipment of Fig. 1, be shown in solid line in the state that the mobile end place of waving of annular core, spool are in the outside of the circle that is limited by annular core, the state that is in the inside of the circle that limits by annular core at waving of annular core mobile other end place, spool shown in broken lines.
Fig. 3 is the front view of the equipment of Fig. 1, opposite with Fig. 2, be shown in solid line in the state that the mobile end place of waving of annular core, spool are in the inside of the circle that is limited by annular core, the state that is in the outside of the circle that limits by annular core at waving of annular core mobile other end place, spool shown in broken lines.
Fig. 4 is the plane of the equipment of Fig. 1, annular core is shown is in state by the position shown in the solid line among Fig. 2.
Fig. 5 is the side view of the equipment of Fig. 1, annular core is shown is in state by the position shown in the solid line among Fig. 2.
Fig. 6 is the vertical sectional side view of spool connecting gear, thereby this mechanism is arranged on the both sides on plane of annular core and is spaced from each other with enough distances, not move interference with the swing of annular core.
Fig. 7 (a), 7 (b) are the side views of the different fixture units of the driver element in swing cord forming device with 7 (c).
Fig. 8 (a) to 8 (d) be the schematic plan view that forms the spool of device according to swing cord according to the present invention, illustrate how spool moves when formation annular concentric bead cord.
Fig. 9 is the front view according to cord forming device of the present invention, belongs to the type that spool moves in the mode of box like.
Figure 10 is the partial elevation view of the equipment of Fig. 9, illustrate comprise rack and pinion be used to prevent to reel the mechanism that steel wire unclamps.
Figure 11 is the plane of the equipment of Fig. 9.
Figure 12 is the side view of the equipment of Fig. 9, and the spool connecting gear is shown.
Figure 13 is the side view of partial vertical section of the equipment of Fig. 9, and the detailed structure of spool connecting gear is shown.
Figure 14 (a), 14 (b) are the side views of the different fixture units of the driver element in the cord forming device with 14 (c), belong to the type that spool moves in the mode of box like.
Figure 15 is the schematic elevational view according to the spool of cord forming device of the present invention, belongs to spool and moves to form the type of annular concentric bead cord in the mode of box like, spool is shown how moves.
Figure 16 (a) to 16 (d) be schematic plan view according to the spool of cord forming device of the present invention, belong to spool with the type that the mode of box like moves, illustrate how spool moves when forming the annular concentric bead cord.
Figure 17 (a) illustrates the concentric bead cord of full annular, and Figure 17 (b) is the perspective view of the part of annular concentric bead cord.
Figure 18 is the schematic elevational view of spool, and moving of when forming the concentric bead cord of traditional endless bobbin is shown.
Figure 19 (a) and 19 (b) are the schematic plan views of bobbin, and moving of when forming the concentric bead cord of traditional endless spool is shown.
Figure 20 is the schematic diagram that is used to form another traditional cord forming device of annular concentric bead cord.
The explanation of Reference numeral
1 annular core
2 coiling steel wires
3 spools
4 driver elements
10 driver elements
11 keeper arms
12a, 12b pinch roller
13 fixture units
13a, 13b carrying roller
14 pedestals
20 feed units
21 spools
22 box pedestals
23 boxes
23a steel wire supply hole
24 guide posts
25 cylinders
26 bars
27 slurcams
30 pivots
31 rotating discs
32 crank axles
101 annular core
102 coiling steel wires
104 fixture units
110 driver elements
104a, 104b carrying roller
111a, 111b pressure roller
120 feed units
121 spools
122 boxes
122a steel wire supply hole
130 sliding units
131 sliding stands
132 box pedestals
133 guide posts
134 crank mechanisms
135 cylinders
136 tracks
137 CD-ROM drive motors
The 138a bar
140 tooth bars
141 gears
The specific embodiment
Fig. 1 to 8 illustrates and realizes swing cord forming device of the present invention.
Shown cord forming device comprises and is used for rotating the driver element 10 of annular core 1 and being used for being fed to the feed unit 20 of annular core 1 with being wound on coiling steel wire 2 on the spool 21 along circumferential direction.
The feed unit 20 of steel wire 2 of being used to reel is fixed.
13 needs of fixture unit that comprise two carrying roller 13a and 13b prevent that the side direction of annular core 1 from running out of, thereby around annular core 1, keep the stable of core to rotate in a circumferential direction thus, though when cord diameter increase to final diameter also can, but and the coiling starting point of fixing wound steel wire 2.Therefore, the section shape of the groove of each carrying roller 13a, 13b does not limit particularly.For example, the groove of carrying roller 13a and 13b can have the U-shaped section shown in Fig. 7 (a), curved profile shown in Fig. 7 (b) and the V-shaped section shown in Fig. 7 (c).
Thereby arm 11 is pivoted on the pedestal 14 and pivots around the similar pendulum of the some ground with fixture unit 13 by the pivot 30 that comprises rotating disc 31 and crank axle 32.
Thereby annular core 1 is bearing on the arm 11 an extreme portion place in each circulation of the pendular movement of arm 11, spool 21 is positioned at the outside of the circle that is limited by core 1, shown in the solid line among Fig. 2, and another extreme portion place in each circulation of the pendular movement of arm 11, spool 21 is positioned at the inside of the circle that is limited by core 1, shown in the solid line of Fig. 3.
At the free end of box pedestal 22, guide post 24 is provided with relative to one another.Box 23 can be assemblied on guide post 24 on any of box pedestal 22, and can be sent to guide post 24 on another of box pedestal 22 by connecting gear.As illustrated in Figures 5 and 6, connecting gear comprise be suitable for by cylinder 25 stretch out and the bar 26 of withdrawing and the free end that is installed in each bar 26 on be used to promote the push pedal 27 at the center of box 23.By the center of adopting any one push pedal 27 to promote boxes 23, box 23 can be sent between the guide post 24 on a side and the opposite side.
Preferably, in order to realize high reliability, before beginning to reel, the leading end of coiling steel wire 2 for example uses half finished rubber sheet or adhesive tape to adopt manual mode to be secured to annular core 1 temporarily.Because the half finished rubber sheet belongs to and the material identical materials that forms tire, so unnecessaryly remove this sheet rubber afterwards.When the leading end of coiling steel wire 2 was secured to annular core 1 temporarily, annular core 1 was rotated along circumferential direction.Simultaneously, for on the right-hand side on the plane that coiling steel wire 2 is in annular core 1 from the spool 21 of coiling steel wire 2 and spool 21 shown in the solid line of Fig. 2, be under the state of outside of the circle that limits by annular core 1, be wound as the shape of alphabetical S, annular core 1 is in the circular interior that is limited by annular core 1 shown in the solid line among Fig. 3 around fixture unit 13 swings up to spool 21.In this state, thereby the cylinder 25 that is installed on the box pedestal 22 on the right-hand side is activated perpendicular to the plane mobile bar 21 of annular core 1, box 23 is sent to the guide post 24 of another box pedestal 25.Coiling steel wire 2 is therefore around annular core 1 coiling half way around.Then, the state that is in the inside of the circle that is limited by annular core 1 shown in the solid line Fig. 3 from spool 21 begins, and annular core 1 is left the circle that is limited by core 1 around the spool 21 shown in the solid line of fixture unit 13 swings in Fig. 2.Spool 21 is in the outside of the circle that is limited by core 1 at present, box 23 and therefore spool 21 move perpendicular to the plane of annular core by activating the cylinder 25 on the left hand box pedestal 22.Therefore coiling steel wire 2 reels a complete week around annular core.
The flatness and reciprocator of annular core 1 is moved and annular core 1 is swung around the fixture unit 13 of the coiling starting point that is used as coiling steel wire 2 because spool 21 strides across, so the distance between the coiling starting point of spool 21 and coiling steel wire 2 remains unchanged basically.Therefore, coiling steel wire 2 when reeling around annular core 1 under constant tension force when spool 21 unwindings are got off with not unclamping.
If coiling steel wire 2 unclamped from spool unwinding following time before reeling around core 1, thereby was necessary that so around spool 21 space being set in box 23 applies tension force again to steel wire 2.This space can reduce to be centered around the amount of the coiling steel wire 2 on the spool 21.But, according to the present invention and since coiling steel wire 2 can be under least may the situation of pine under constant tension force from spool 21 unwindings, so there is no need between box 23 and spool 21, to be provided with the space that the permission spool rebounds, thus steel wire 2 is applied tension force again.Therefore, compare, can in box 23, twine more substantial coiling steel wire 2 with the situation that is provided with this space.According to the present invention, owing to more substantial coiling steel wire can be wrapped on the spool 21, so can reduce to change the frequency of spool 21.This has reduced the stand-by time of entire equipment again.
Equally and since spool 2 and coiling steel wire 2 center on distance between the coiling starting point of annular core 1 be retained as constant basically, so coiling steel wire 2 can not fluff when unwinding from spool 21.Therefore, the unnecessary coil diameter of adjusting coiling steel wire 2 owing to rebounding of spool.But, be necessary to adjust the initial coil diameter of coiling steel wire 2, thus the rigidity of when the coil diameter of coiling steel wire 2 is still big, when annular core 1 is reeled, disperseing to reel steel wire 2 spirally effectively at steel wire.Specifically, the initial coil diameter that is wrapped in the coiling steel wire 2 on the spool 21 preferably satisfies following equation:
0.90D
R≤ D
SO≤ 3.3D
RPerhaps
0.55D
C≤D
SO≤2.0D
C
D wherein
RBe the external diameter of spool, D
SOBe the initial coil diameter that is wrapped in the coiling steel wire on the spool, and D
CIt is the diameter of a circle that limits by annular core.
Fig. 8 (a) illustrates the spool 21 that is wound with the coiling steel wire on it and waves annular core 1 to 8 (d) and how to be movable relative to each other.
In particular, the spool 21 from Fig. 8 (a) is in the position of the outside of the circle that is limited by annular core 1, and annular core 1 is rocked to the position that spool 21 among Fig. 8 (b) is in the inside of the circle that is limited by annular core 1.Then, the position from Fig. 8 (b), the plane that spool 21 strides across annular core 1 moves to the opposite side on this plane, shown in Fig. 8 (c).When spool 21 was in the opposite side on the plane shown in Fig. 8 (c), annular core 1 was swung the outside that is in the circle that is limited by core 1 up to spool, shown in Fig. 8 (d).The plane that spool 21 strides across annular core 1 is then moved and is back to its initial position (position of Fig. 8 (a)).This one-period repeats.Therefore, according to the present invention, by waving annular core 1 as Fig. 8 (a) → (b) → (c) → (d) → (a) with respect to spool, at the plane that spool 21 is striden across annular core 1 such as Fig. 8 (b) → (c) with when (d) → (a) moving, coiling steel wire 2 can be reeled around annular core 1.
The displacement that spool 21 strides across the plane of annular core 1 should be minimum of a value, when displacement during greater than this minimum of a value, spool 1 can fully stride across this plane from the side shifting on this plane to opposite side.More particularly, when coiling steel wire 2 centered on core 1, coiling steel wire 2 was with respect to the angle beta on the plane of annular core 1
SShould not surpass 29 degree.If the value of being somebody's turn to do surpasses 29 degree, the difference between this angle and the torsional angle will become greatly so, thereby be difficult to uniform spacing around annular core 1 this steel wire 2 of coiling.
In this embodiment, coiling steel wire 2 is along the S direction around annular core 1 coiling one deck.But also can reel two or three layers around this core.In order to reel two-layer around central core 1 coiling steel wire 2 along the Z direction, only need stride across the plane mobile bar 21 of annular core 1 with opposite order, be Fig. 8 (d) → (c) → (b) → (a) → (d), adjust the horizontal level of pedestal 14 and the upright position of fixture unit 13, and the carrying roller that will have a U-shaped groove is replaced by and upright position that adjust them new.Coiling steel wire 2 can adopt and reel three or four layers around this core 1 around this core coiling one deck or two-layer identical mode.
Use this wire-shaped forming apparatus that waves type, the bead cord sample under different conditions by with the coiling steel wire around this annular core coiling one deck or two-layer being prepared.For every group of sample, determined flexibility and can degree of shaping.Have been found that the angle β between coiling steel wire and the annular core plane
SHave maximum influence for the said two devices attribute, and the initial coil diameter of the tension force of coiling steel wire and coiling steel wire has second largest influence for the said two devices attribute.Measurement result for these attributes is illustrated in the table 1.
In the prior art, the bead cord sample adopts mode shown in Figure 20 to prepare, and wherein annular core 1 moves along linear reciprocation, thereby moves towards and away from the fixedly spool 3 of carrying coiling steel wire 2.Adopt this mode, when annular core 1 during near spool 3, the coiling steel wire unclamps.
Flexibility in the table 1 and can degree of shaping followingly determine:
(1) flexibility
Each cord sample is placed on the flat surface of pressing plate for example, and the maximal clearance accepted scale that exists between flat surface and each the cord sample is measured.Every group of sample comprises 20 cord samples.
The implication of the symbol in the table 1 is as follows:
◎: be no less than 11 samples in every group and have the maximal clearance that is equal to or less than 0.5mm, the maximal clearance in 20 samples surpasses 1.0mm's.
Zero: be less than 11 samples and have the maximal clearance that is equal to or less than 0.5mm, be no less than 11 samples and have the maximal clearance that is equal to or less than 1.0mm.
△: be less than 11 samples and have the maximal clearance that is equal to or less than 1.0mm, be no less than 11 samples and have the maximal clearance that is equal to or less than 1.5mm.
*: be less than 11 samples and have the maximal clearance that is equal to or less than 1.5mm.
(2) can degree of shaping
How visually detect the coiling steel wire arranges around the intermediate layer of annular core or coiling steel wire equably.Every group of sample comprises 20 cord samples.
Symbol implication in the table 1 is as follows:
◎: in 20 all samples, the coiling steel wire is enough equably around this core arrangement.
Zero: the coiling steel wire is no less than 18 with the quantity of the sample that enough uniformitys are arranged.
△: the quantity of the sample that the coiling steel wire is arranged with the enough uniformity is no less than 10 and be less than 18.
*: the coiling steel wire is less than 10 with the quantity of the sample that enough uniformitys are arranged.
(3) index of the amount of the coiling steel wire of reeling around annular core
The bead cord sample forms by conventional method, the steel wire of wherein reeling is reeled around annular core, along straight line annular core is moved towards and away from the spool of carrying coiling steel wire simultaneously, make that the distance between spool and the coiling starting point changes, and form by the method according to this invention.The amount that the coiling steel wire is reeled around annular core by the method according to this invention is by the index expression that adopts the amount that conventional method reels around annular core based on coiling steel wire (it is 100).
Table 1
Referring now to Fig. 9 to 16, describe according to cord forming device of the present invention.Shown cord forming device can form according to concentric bead cord of the present invention by the form mobile bar with similar box.
Shown cord forming device comprises driver element 110, and this unit has two the pressure roller 111a and the 111b of the CD-ROM drive motor that is connected in the annular core 101 that is used to rotate in a circumferential direction; Coiling steel wire feed unit 120, this unit are used for being supplied to the coiling starting point of annular core 101 with being wound on coiling steel wire 102 on the spool 121; And sliding unit 130, the plane that is used to be parallel to annular core 101 moves to inside with spool 121 from the outside of annular core 101; Spool 121 striden across and move to one section short distance of opposite side on the plane of annular core perpendicular to the plane of annular core, this distance is enough to remove the plane (thus around annular core reel this coiling steel wire half cycle) of annular core; The plane that spool 121 is parallel to annular core from the inside of annular core moves to the outside; And spool 121 striden across and move to its initial position perpendicular to the plane of annular core.
Sliding unit 130 comprises sliding stand 131, and this sliding stand moves back and forth along the track 136 that is parallel to the annular core plane under the effect of CD-ROM drive motor 137 by crank mechanism 134; And a pair of relative box pedestal 132 that is installed on the sliding stand 131, its position makes inserts between the box pedestal partly in pedestal 132 annular core when annular core moves.
Coiling steel wire feed unit 120 is arranged on this top to box pedestal 132.Feed unit 120 comprises the spool 121 that is wound with coiling steel wire 102 on it; And box 122, this box comprises cylindrical outer wall, and the diameter of this cylinder is less times greater than the overall diameter of spool 121, and width equals the insied width of spool 121 at least.Thereby spool 121 is rotatably installed in the whole surface that covers coiling steel wire 102 wound thereon in the box 122.Spool 121 and box 123 form chuck.The cylindrical outer wall of box 122 forms porose 122a, and the coiling starting point of coiling steel wire 102 around annular core 101 pulled out and be fed to coiling steel wire 102 by this hole from this box.Coiling steel wire 102 is wound up as the preset lines loop diameter and is set in the box 122 of feed unit 120 on spool 121.
On this top to box pedestal 132, guide post 133 is set to toward each other.Box 122 can be assemblied on the guide post 133 on any one box pedestal 132, and can be sent to guide post 133 on another of box pedestal 132 by connecting gear.Shown in Figure 12 and 13, connecting gear comprises and is suitable for being stretched out and the bar 138a that withdraws and being installed in is used to push the push pedal 138b at the center of box 122 on the free end of each bar 138a by cylinder 135.By the center of adopting any one push pedal 138b to promote box 122, box 122 can transmit between side of guide post 133 and opposite side.
Driver element comprise pressure roller 111a and the 111b that is used for rotary annular core 101 and be positioned at pressure roller 111a and 111b top and at coiling starting point place around the fixture unit 104 of annular core 101, locate this coiling starting point thus.In this embodiment, run out of in order to prevent annular core 101 side direction, annular core 101 is perpendicular positioning when rotated.
104 needs of fixture unit that comprise two carrying roller 104a and 104b prevent that the side direction of annular core 101 from running out of, thereby keep the stable of core 101 to rotate in a circumferential direction, loosely lead simultaneously, even when cord diameter increased to final diameter also can, and the coiling starting point of fixing wound steel wire 102.Therefore, the section shape of the groove of each carrying roller 104a, 104b does not limit particularly.For example, the groove of carrying roller 104a and 104b can have the U-shaped section shown in Figure 14 (a), the curved profile shown in Figure 14 (b), the perhaps V-shaped section shown in Figure 14 (c).
In the structure that spool 121 moves in the mode of box like, when spool 121 when the coiling starting point of coiling steel wire moves, thereby spool 121 rotates unclamping of the steel wire 102 that prevents to reel on the contrary.Thereby so just do not need in advance by being wound on coiling steel wire 102 on the spool 121 and making its coil diameter in spool 121, make strong resilience less than the external diameter of spool 121.Just, even it is bigger to be wound on the initial coil diameter of the coiling steel wire 102 on the spool, coiling steel wire 102 also will not tangle in spool 121, can increase the upper limit of the coil diameter of the coiling steel wire that is wound on the spool like this, improves thus the enterolithic repellence in the plane of bead cord.
Preferably, for high reliability, before beginning to reel, the leading end of coiling steel wire 102 for example uses half finished rubber sheet or adhesive tape to adopt manual mode to be secured to annular core 101 temporarily.Because the half finished rubber sheet belongs to and the material identical materials that forms tire, so unnecessaryly remove this sheet rubber afterwards.When the leading end of coiling steel wire 102 was secured to annular core 101 temporarily, annular core 101 was rotated along circumferential direction.Simultaneously, for on the right-hand side on the plane that coiling steel wire 102 is in annular core 101 from the spool 121 of coiling steel wire 102 and spool 121 be under the state of outside of the circle that limits by annular core 101, be wound as the shape of alphabetical S, spool 121 is parallel to the annular core plane and moves towards annular core 101, keep simultaneously not contacting, be in the inside of the circle that limits by annular core up to spool 121 fully with annular core.In this state, thereby the cylinder 135 that is installed on box pedestal 132 tops on the right-hand side is activated perpendicular to the plane mobile bar 121 of annular core 101, box 122 is sent to the guide post 133 of another box pedestal 132.Coiling steel wire 102 is therefore around annular core 101 coiling half way arounds.Then, from this state, spool 121 is parallel to the outside on the annular core plane moves to the annular core plane from the inside of annular core the left-hand side.Spool 21 is in the outside of the circle that is limited by core 1 at present, box 122 and therefore spool 121 move to its initial position by activating the cylinder 135 on the left hand box pedestal perpendicular to the plane of annular core.Therefore coiling steel wire 102 reels a complete week around annular core.Spool 121 moves by the plane that the sliding unit 130 that is arranged on this place, equipment bottom is parallel to annular core.
Therefore spool 121 moves in the box-like mode of elongation.This of spool 121 be quite irregular to be moved through synchronous activation CD-ROM drive motor 137 and cylinder 135 and carries out continuously.When spool 121 when annular core 101 moves, spool 121 rotates in the opposite direction along the side with the unwinding of coiling steel wire, so that the coiling steel wire can not unclamp.
The spool 121 that is wound with coiling steel wire 102 on it moves back and forth by sliding unit 130, as shown in figure 15.Figure 16 (a) illustrates spool 121 to 16 (d) and how to move.
In particular, the spool 121 from Figure 16 (a) is in the position of the outside of the circle that is limited by annular core 101, and spool 121 moves towards annular core, is in the inside of the circle that is limited by annular core 101 fully up to spool 121, shown in Figure 16 (b).Then, the position from Figure 16 (b), the plane that spool 121 strides across annular core 101 moves to the opposite side on this plane, shown in Figure 16 (c).When spool 121 was in the opposite side on the plane shown in Figure 16 (c), spool 121 moved away the circle that is limited by annular core 101, shown in Figure 16 (d).The plane that spool 121 strides across annular core 1 is then moved and is back to its initial position (position of Figure 16 (a)).This one-period repeats.Therefore, according to the present invention,,, coiling steel wire 102 spiralitys ground reels but centering on annular core 101 by as Figure 16 (a) → (b) → (c) → (d) → (a) mobile bar 121.More particularly, from the position of Figure 16 (a) to the position of Figure 16 (b), from the position of Figure 16 (c) to the position of Figure 16 (d), spool 121 is parallel to the plane of annular core 101 and moves, and spool 121 moves to the position of Figure 16 (c) perpendicular to the core plane from the position of 16 (b), from the position of Figure 16 (d) to the position of Figure 16 (a).
In this embodiment, coiling steel wire 2 centers on annular core 1 coiling one deck by moving this spool in box-like mode along the S direction.But also can reel two or three layers around this core.In order to reel two-layer around central core 101 coiling steel wire 102 along the Z direction, only need move this spool in box-like mode with opposite direction, it is the order of Figure 16 (d) → (c) → (b) → (a) → (d), adjust the upright position of fixture unit 104, and the carrying roller that will have a U-shaped groove is replaced by new.Coiling steel wire 102 also can adopt and twine one deck or two-layer identical mode around this core around three or four layers of these core 101 coilings.
Use two kinds of cord forming devices that dissimilar spools moves in box-like mode, the bead cord sample under different conditions by with the coiling steel wire around this annular core coiling one deck or two-layer being prepared.For every group of sample, determined flexibility and can degree of shaping.Have been found that the angle β between coiling steel wire and the annular core plane
SHave maximum influence for the said two devices attribute, and the initial coil diameter of the tension force of coiling steel wire and coiling steel wire has second largest influence for the said two devices attribute.Measurement result for these attributes is illustrated in the table 2.
First equipment has following function, by tooth bar 140 with the engagement of gear 141 along with in the side of spool 121 coiling steel wire 102 unwindings when the coiling starting point of coiling steel wire 102 moves in the opposite direction around annular core 101 spinning reels 121, so that coiling steel wire 102 can not unclamp.Second equipment does not have this function.The amount that can be wound on the coiling steel wire 102 on the spool 121 in first equipment is by based on shown in the index of the amount that can be wound on the coiling steel wire (100) on the spool in second equipment.
Flexibility shown in the table 2 with can degree of shaping determine in the mode identical with table 1.
Claims (9)
1, a kind of method that forms the annular concentric bead cord, wherein, annular core is along rotating in a circumferential direction, the spool that is wound with the coiling steel wire on it strides across described annular core plane and repeatedly moves back and forth, simultaneously described spool is in the inside and outside of the circle that limited by described annular core, makes the angle β that forms between described coiling steel wire and the described annular core plane
SCan not surpass 29 degree, thus from the described coiling steel wire of described spool unwinding, and continuously with spirality ground around the reel coiling steel wire of unwinding thus of described annular core, thereby form a sheath or a plurality of sheath, it is characterized in that, described spool is parallel to described annular core plane towards described coiling steel wire to begin to move around the coiling starting point that described annular core is reeled, move perpendicular to described plane, be parallel to described plane and move away described coiling starting point, and move perpendicular to described plane, and wherein, at described spool when described coiling starting point moves, described spool along with described coiling steel wire along with described spool rotates in the opposite direction near the side of described annular core from described spool unwinding.
2, a kind of method that forms the annular concentric bead cord, wherein, annular core is along rotating in a circumferential direction, the spool that is wound with the coiling steel wire on it strides across described annular core plane and repeatedly moves back and forth, simultaneously described spool is in the inside and outside of the circle that limited by described annular core, makes the angle β that forms between described coiling steel wire and the described annular core plane
SCan not surpass 29 degree, thus from the described coiling steel wire of described spool unwinding, and continuously with spirality ground around the reel coiling steel wire of unwinding thus of described annular core, thereby form a sheath or a plurality of sheath, it is characterized in that, described annular core begins around the coiling starting point of described annular core coiling about described coiling steel wire, be at described spool between the second place of the primary importance of inside of the circle that limits by described annular core and the outside that described spool is in described circle and repeatedly swing, and wherein, when described spool is in the circle that limited by described annular core inside and outside, described spool strides across the flatness and reciprocator of described annular core and moves, thus from the described coiling steel wire of described spool unwinding and around described annular core spirality the coiling steel wire of the unwinding thus of reeling.
3, the method for formation annular concentric bead cord according to claim 1 and 2, wherein, before described coiling steel wire is reeled around described annular core spirality ground, from the leading end of the described coiling steel wire of described spool unwinding by sulfuration or semi-cure sheet rubber are not secured to described annular core provisionally.
4, according to the method for each described formation annular concentric bead cord in the claim 1,2 and 4, wherein, thereby the coil diameter adjustment that is wrapped in the coiling steel wire on the described spool is satisfied following formula:
0.90D
R≤D
SO≤3.3D
R
Perhaps
0.55D
C≤D
SO≤2.0D
C
Wherein, D
RBe the overall diameter of described spool, D
SOBe the initial coil diameter that is wrapped in the coiling steel wire on the described spool, D
CIt is the diameter of a circle that limits by described annular core.
5, a kind of equipment that is used to form the annular concentric bead cord, comprise the driver element that is used for along the annular core that rotates in a circumferential direction, being used for being wound on coiling steel wire on the spool is supplied to and is used for around the reel fixed supply unit of winding station of described coiling steel wire of described annular core, be used for swinging the swing unit of described annular core along the coiling starting point on described annular core plane about described winding station, and on the both sides on described annular core plane, the spool connecting gear positioned opposite to each other that separates at interval with described annular core, described feed unit comprises described spool, and described swing unit is at described spool between the second place of the primary importance of inside of the circle that is limited by described annular core and the outside that described spool is in described circle swings described annular core about described coiling starting point.
6, a kind of equipment that is used to form the annular concentric bead cord comprises the driver element that is used for along the annular core that rotates in a circumferential direction; Be used for being wound on coiling steel wire on the spool and be supplied to and be used for around the reel feed unit of winding station of described coiling steel wire of described annular core, described feed unit comprises described spool; Be used for moving the sliding unit of described spool, that is carried out mobilely is parallel to described annular core, from the outside of the circle that limits by described annular core and be in the second place that primary importance on the side on described annular core plane moves to the inside of described circle, described spool is striden across and moves to the 3rd position on the opposite side on described annular core plane perpendicular to described annular core plane, described spool is parallel to the 4th position that described annular core plane moves to the outside of the circle that is limited by described annular core, and described spool striden across and moves to primary importance perpendicular to described annular core plane; And prevent the mechanism that described coiling steel wire unclamps, described mechanism comprises tooth bar, the position of described tooth bar makes the top of described spool move along described tooth bar when the coiling starting point of described annular core moves at described spool, thereby and be arranged on described spool back and described spool meshed gears, thus along with described coiling steel wire along with described spool rotates described spool near described annular core in the opposite direction from the side of described spool unwinding.
7, according to claim 5 or the 6 described equipment that are used to form the annular concentric bead cord, wherein, described driver element comprises two pressure rollers that are used to rotate described annular core, and fixture unit, described fixture unit is nearer from described feed unit than the described pressure roller of the described annular core that is used for loosely leading, described fixture unit is as described coiling starting point, and at this some place, described coiling steel wire begins to reel around described annular core.
8, according to each described equipment that is used to form the annular concentric bead cord of claim 5 to 7, wherein, be provided with two spool connecting gears respect to one another, the described mechanism minimum range that separates each other, when described spool when of described spool connecting gear is sent to another, the opposite side of described spool from the side shifting on described annular core plane to described annular core plane, its displacement is greater than described minimum range.
9, according to each described equipment that is used to form the annular concentric bead cord of claim 5 to 8, wherein, described feed unit also comprises the box that described spool is installed, described box comprises cylindrical outer wall, the diameter of this cylindrical outer wall is less times greater than the overall diameter of described spool, width is corresponding to the insied width of described spool, and forms a hole, and described coiling steel wire passes this hole and pulls out from described box.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP270243/2004 | 2004-09-16 | ||
| JP2004270243 | 2004-09-16 | ||
| JP020201/2005 | 2005-01-27 |
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| CN101027180A CN101027180A (en) | 2007-08-29 |
| CN100548653C true CN100548653C (en) | 2009-10-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109514898A (en) * | 2017-09-19 | 2019-03-26 | 东洋橡胶工业株式会社 | Bead core method for coating and bead core coating unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103042138B (en) * | 2012-12-26 | 2015-09-02 | 山东金宇轮胎有限公司 | Wire loop retracting device |
| CN103862692B (en) * | 2014-03-10 | 2016-09-28 | 无锡盛力达科技股份有限公司 | Steel bead wire wrapping machine wrapping wire support |
| FR3083477B1 (en) * | 2018-05-14 | 2020-06-19 | Compagnie Generale Des Etablissements Michelin | METHOD FOR MANUFACTURING A BRAIDED PIPE FOR A PNEUMATIC BANDAGE, WITH FOLDING AN EXCESSED SECTION OF THE BRAIDED WIRE |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514898A (en) * | 2017-09-19 | 2019-03-26 | 东洋橡胶工业株式会社 | Bead core method for coating and bead core coating unit |
| CN109514898B (en) * | 2017-09-19 | 2020-12-29 | 东洋橡胶工业株式会社 | Method and apparatus for coating bead core |
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Effective date of registration: 20190621 Address after: Osaka Japan Co-patentee after: Sumitomo Electric Tochigi Co., Ltd. Patentee after: Sumitomo Electric Industries, Ltd. Address before: Hyogo Co-patentee before: Sumitomo Electric Tochigi Co., Ltd. Patentee before: Sumitomo Sei Steel Wire Corp. |