CN101200120A - Method and apparatus of manufacturing annular concentric stranded bead cord - Google Patents
Method and apparatus of manufacturing annular concentric stranded bead cord Download PDFInfo
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- CN101200120A CN101200120A CNA2007101990263A CN200710199026A CN101200120A CN 101200120 A CN101200120 A CN 101200120A CN A2007101990263 A CNA2007101990263 A CN A2007101990263A CN 200710199026 A CN200710199026 A CN 200710199026A CN 101200120 A CN101200120 A CN 101200120A
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- toroidal cores
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Abstract
A method of manufacturing an annular concentric stranded bead cord, wherein, while rotating an annular core at a fixed position in a peripheral direction, a reel, upon which a lateral wire is wound, repeatedly performs a pendulum swinging movement and a perpendicular movement with respect to the annular core, thereby spirally winding the lateral wire upon the annular core to form a sheath layer. When forming the sheath layer, a fulcrum of the pendulum swinging movement of the reel is determined so that, with reference to a tangential line of a circle of the annular core passing through a winding point where the lateral wire is wound upon the annular core, the lateral wire is wound upon the winding point of the annular core within 15 degrees at a position above the tangential line and within a range of 55 degrees at a position below the tangential line.
Description
Technical field
The present invention relates to embed the bead cord of airtyred bead part.More particularly, the present invention relates to make the method and apparatus of annular concentric stranded bead cord, that is: this annular concentric stranded bead cord has by twine a jacket layer or a plurality of jacket layer that side line forms along toroidal cores continuous helical ground.
Background technology
Annular concentric stranded bead cord is used for various types of vehicles.
Shown in Fig. 9 A and 9B, annular concentric stranded bead cord comprises the jacket layer of the side line 2 that is arranged on the toroidal cores 1.By making side line 2 lead to circle inboard of toroidal cores 1 from the outside of toroidal cores 1 and then make side line 2 lead to the inboard of circle, thereby make above-mentioned annular concentric stranded bead cord along toroidal cores 1 continuous helical ground winding side line 2 from the outside of circle.
Following method is disclosed up to now as the method for making annular concentric stranded bead cord.
At first, Japan Patent No.3499261 discloses the manufacture method of the bead cord that uses side line, when being wrapped in toroidal cores in the mode of spiral side line, it is deformed at least 2 times the line that diameter is the toroidal cores diameter in advance.When the bead cord that adopts this method to make is used for tire, can feel that its elasticity height and earth-grasping force, steering force and response are improved.
Unexamined Japanese Patent Application Publication No.2001-47169 discloses another kind of method.As shown in figure 10, in the method, temporarily be fixed on the toroidal cores 1 by the end of clamping body with side line 2.When rotating ring core 1 along the circumferential direction, reel 3 turns to the inboard and the outside of toroidal cores 1.Like this, side line 2 is wound on the periphery of toroidal cores 1 in the mode of spiral.Before the position of rotation that is temporarily fixed to end on the toroidal cores 1 and reel 3 of side line 2 was overlapping, clamping body unclamped from toroidal cores 1.Thereby prevented the interference between clamping body and the reel 3, so that reel 3 continues rotation.S twines and the Z winding prevents such as problems such as the entanglement of side line 2 and distortions thereby this method makes it possible to alternately repeatedly to carry out.Therefore, can greatly improve the productivity ratio and the quality of bead cord.
Unexamined Japanese Patent Application Publication No.2004-98640 discloses the method for another kind of manufacturing bead cord.In the method, side line terminal or with not fixedly the mode of side line be wound on the toroidal cores or be temporarily fixed on the toroidal cores, and can rotate freely.With the plane of reel (twining less than the toroidal cores diameter) by being bent to diameter move, the rotation of the vertical operation of toroidal cores and toroidal cores combines with the bending stress by steel wire side line is wrapped on the toroidal cores, thereby prevent to produce twisting stress when making bead cord.
WO2004/018187A1 discloses the method for another kind of manufacturing bead cord.In the method, as shown in figure 12, the reel 3 that is wound with side line 2 on it is fixed to the precalculated position.Driver element 5 along the circumferential direction rotates toroidal cores 1, and along the surperficial straight reciprocating motion of toroidal cores 1.At an end of reciprocation period, reel 3 is arranged in the outside (shown in the solid line of Figure 12) of the circle of toroidal cores 1.At the other end of reciprocation period, reel 3 is arranged in the inboard (shown in the dotted line of Figure 12) of the circle of toroidal cores 1.In the inboard and the outside of the circle of toroidal cores 1, mobile reel 3 to be crossing the surface of toroidal cores 1, and the side line 2 continuous helicals ground of extracting out from reel 3 is wrapped on the toroidal cores 1 with the manufacturing bead cord.
Unexamined Japanese Patent Application Publication No.2006-110981 also discloses the method for another kind of manufacturing bead cord.As Figure 13 and shown in Figure 14, in the method, on the precalculated position, reel 3 is moved back and forth to cross the surface of toroidal cores 1.Grip unit 4 that will be corresponding with the winding point of side line 2 makes toroidal cores 1 carry out pendular movement as fulcrum.The distance of 2 winding point keeps constant value from reel 3 to side line thus, and therefore the side line of extracting out from reel 3 when twining 2 is not loose.As a result, side line 2 is wound on the toroidal cores 1 to make bead cord with constant tension force.
The stability of the formation of bead cord is most important for the quality of bead cord.Employing has following problem according to the bead cord of the method manufacturing of above-mentioned patent documentation.
About the bead cord that adopts Japan Patent No.3499261 disclosed method to make, in order to increase the elasticity of tire, the side line of winding is pre-formed to having 2 times diameter of toroidal cores diameter at least.Therefore, be difficult to the factor that realizes automation and have many increase costs.In addition, when the winding diameter of the side line on being wound into toroidal cores is big, be difficult to by manual winding side line.In addition, owing to changed side line in advance, thus the resistance increase causes the winding problem when extracting side line out.In addition, after furling side line by reel, when being wound into side line on the toroidal cores, if be not continuously applied specific tensile more than or equal to particular value, it is lax that the winding of side line will become.Even have little tension force, thereby toroidal cores also trends towards deforming coiling property is had a negative impact.
About disclosed method in unexamined Japanese Patent Application Publication No.2001-47169, temporarily be fixed on the toroidal cores by the end of clamping body side line, reel rotates to the inboard and the outside of toroidal cores when toroidal cores is along the circumferential direction rotated.Therefore, the angle that is wrapped on the toroidal cores of side line alters a great deal.In addition, have many unwanted motions, and equipment itself becomes thick and heavy.
In addition, about disclosed method in unexamined Japanese Patent Application Publication No.2001-47169, conceptually illustrate as Figure 10, reel 3 rotates to the inboard and the outside of toroidal cores 1.Therefore, side line 2 is wound on the toroidal cores 1, and twines deviation angle β
sAbout 50 degree (as Figure 11 B shown in) of the position that 0 degree (shown in Figure 11 A) from side line 2 and toroidal cores 1 when parallel to each other changes to reel 3 during away from toroidal cores 1.The torsion angle β that is used for the tyre bead of general commercially available tire is to spend in the scope of 5.5 degree from 3.5 at the 1+m of sulky vehicle torsion structure.Torsion angle β is about 7 degree in the 1+m+n of passenger car/light truck torsion structure.Therefore, as mentioned above, owing to twine deviation angle β
sAnd the difference between the torsion angle β becomes big, and the ordered state of the side line 2 that twines is multilated continuously, thereby causes the formability of cord relatively poor.
In addition, about disclosed method in unexamined Japanese Patent Application Publication No.2001-47169, reel 3 rotates to the inboard and the outside of toroidal cores 1, because reel 3 moves along circular path, its moving line is tediously long, therefore needs to twine and could finish through the long period.In addition, because side line 2 twines under the situation of certain tension force being subjected to, so bail core 1 along the circumferential direction.Therefore, toroidal cores 1 is tending towards wriggling, thereby but causes prehensile relatively poor.
Next, about disclosed method in unexamined Japanese Patent Application Publication No.2004-98640, toroidal cores is horizontally disposed and move in the mode of complexity.Therefore, similar to unexamined Japanese Patent Application Publication No.2001-47169, twine deviation angle β
sChange very big, thereby but cause the prehensile instability.In addition, moving horizontally after a time interval of reel is reverse, needs 2 times time.Therefore, the manufacturing of finishing bead cord needs 2 times time.Unless limit collar core (becoming basic point when twining) is mobile to greatest extent, but otherwise prehensile will become unstable.Specifically, owing to toroidal cores moves continuously along the gravity direction setting and at the reel that moves and be wound with on it side line on the gravity direction vertically, but therefore prehensile is relatively poor.
About disclosed method in WO2004/018187A1 as shown in figure 12, reel 3 is fixed to the precalculated position, and driver element 5 is from moving back and forth on straight line.Like this, thus toroidal cores 1 with near and move away from the mode of reel 3 and to make reel 3 move to the inboard and the outside of the circle of toroidal cores 1.Therefore, when toroidal cores 1 during near reel 3, side line 2 is along side line 2 lax directions are pushed.Opposite is, when toroidal cores 1 deviates from reel 3 when moving, side line 2 is drawn.Therefore, great displacement takes place with respect to the winding point of toroidal cores 1 winding in side line 2 along with moving of toroidal cores 1.As a result, because the arrangement of side line 2 is tending towards multilated, so be difficult to arrange side line 2.
About Figure 13 and disclosed method in unexamined Japanese Patent Application Publication No.2006-110981 shown in Figure 14, along the circumferential direction Xuan Zhuan toroidal cores 1 is carried out pendular movement, and grip unit 4 (being the winding point of side line 2) is as fulcrum.Therefore, it is bigger that entire equipment becomes, and it is unstable that toroidal cores 1 rotation along the circumferential direction becomes, and the arrangement of side line is with multilated.
Summary of the invention
Correspondingly, the method and apparatus that the purpose of this invention is to provide following manufacturing annular concentric stranded bead cord: it makes and can carry out twining and providing at a high speed good winding performance, and make it possible to by the stabilizing ring core along the circumferential direction rotation and do not upset the side line ordered state, thereby obtain the good formability of cord.
Here, according to a first aspect of the invention, provide a kind of method of making annular concentric stranded bead cord.In the method, when toroidal cores is along the circumferential direction rotated, the reel that is wound with side line on it crosses and reciprocates to the inboard and the outside of the circle of described toroidal cores with respect to the surface of described toroidal cores, so repeat twining movement, thereby make the winding deviation angle β of side line with respect to the surface of described toroidal cores so that described reel crosses
sBe not more than 29 degree.Like this, the side line of extracting out from described reel is wrapped on the toroidal cores continuously to form one or more jacket layers.Described reel is pendular movement with respect to the in-plane moving on the surface of described toroidal cores.Make described reel move to the position of inboard that described reel crosses the circle of described toroidal cores at the end in pendulum cycle, and make described reel move to the position in the outside that described reel crosses the circle of described toroidal cores at the other end in pendulum cycle, so, be wrapped on the described toroidal cores by making described reel repeatedly be transverse to the inboard and the outside of the circle of described toroidal cores with respect to the surface of described toroidal cores the side line continuous helical of from described reel, extracting out.The position of fulcrum of the pendular movement of described reel is set, make the side line extracted out from described reel and described toroidal cores circle pass through angle between the tangent line that side line is wrapped in the winding point on the described toroidal cores in following scope, that is: with respect to described tangent line a side opposite with described toroidal cores be 15 the degree in, and with respect to described tangent line described toroidal cores one side be 55 the degree in.
The contact point of described side line and described toroidal cores when " winding point " refers on the periphery that described side line is wrapped in described toroidal cores.
In the present invention, at first, described reel crosses and moves back and forth with respect to described toroidal cores surface, makes described side line be not more than 29 degree with respect to the winding deviation angle β s on described toroidal cores surface.
This makes described reel can repeatedly cross described toroidal cores surface, and the motion that described reel deviates from described toroidal cores surface is reduced to minimum.Correspondingly, keeping by the side line of described reel extraction and the winding deviation angle β between the described toroidal cores
sThe time, can twine described side line in continuous helical ground.
Secondly, along the circumferential direction rotate in the fixed position and described reel when carrying out pendular movement, following situation takes place with respect to described toroidal cores when described toroidal cores.Promptly, position according to the fulcrum of the pendular movement of described reel, reference is looked from the direction of described side line through the tangent line of the winding point of described toroidal cores, from the end in pendulum cycle (promptly, this moment, described reel was positioned at the position of the inboard of the circle that crosses described toroidal cores) to the other end in pendulum cycle (promptly, this moment, described reel was positioned at the position in the outside of the circle that crosses described toroidal cores), the direction of side line of extracting and arrive the winding point of described toroidal cores from described reel out changes.When the angle of circle between the tangent line at described winding point place of the direction of described side line and described toroidal cores is big, the ordered state variation of described side line.
The identical direction of direction that is wrapped on the described toroidal cores owing to described side line edge and its is wrapped on the described reel, make minimum winding diameter be approximately 55% of described toroidal cores diameter, described side line twines from the winding point outside of described toroidal cores and twines for the influence of ordered state inequality with described side line from the winding point inboard of described toroidal cores.When described side line bigger for the influence of described ordered state when twine in the described outside.Tangent line with respect to the winding point of the described side line of process on described toroidal cores of the circle of described toroidal cores, ordered state to described side line does not produce the angle of adverse effect in following scope, that is: be in 15 degree at the opposite side of described toroidal cores, and be in 55 degree in described toroidal cores side.Need the position of the fulcrum of the pendular movement of definite described reel, make described side line in above-mentioned angular range, be wrapped in the winding point place of described toroidal cores.
In the present invention, because described toroidal cores is along the circumferential direction rotated in its fixed position and described toroidal cores is rotated under stable status, therefore the winding of described side line is not easy multilated.
In addition, carry out pendular movement, carry out the situation of pendular movement with described toroidal cores and compare, entire equipment is diminished significantly by making described reel.
Preferably, by using the unvulcanized rubber sheet that the winding initiating terminal of described side line is temporarily fixing, the side line of extracting out from described reel is wrapped on the described toroidal cores spirally.Because therefore unvulcanized rubber and rubber for tire homogeneity need not remove unvulcanized rubber in post-processing step.
For the rigidity that prevents that described side line from expansion taking place and distribute described side line effectively when being wrapped in described side line on the described toroidal cores spirally, preferably, before furling described side line, described reel adjusts the winding diameter of described side line in advance, to satisfy any one in the following expression formula:
0.90D
R≤ D
SO≤ 3.3D
RAnd
0.55D
C≤D
SO≤2.0D
C
D wherein
RBe the external diameter of described reel, D
SOBe the adjusted winding diameter of described side line, D
CIt is the central diameter of described toroidal cores.
In addition, in order when twining described side line spirally, to allow described side line to relax slightly and to prevent described side line expansion, suitable is, described reel rotatably is contained in the box, and described box has the cylindrical peripheral wall consistent with the insied width of described reel and slightly greater than the diameter of the external diameter of described reel.In addition, suitable is to extract out the extraction hole of described side line in the periphery wall that is arranged on described box.
When the bending direction of the side line of from described reel, extracting out when the bending direction of toroidal cores is stated in described winding point place, described side line is wound in and makes that the curved shape of described side line is consistent with the bending direction of described toroidal cores.Therefore, when twining described side line, be not easy to upset.When the bending direction of the bending direction of described side line and described toroidal cores was opposite, the side line of winding was oppressed described toroidal cores along the bending direction of described toroidal cores, thereby caused the shape of described toroidal cores to depart from circular and produce distortion.Therefore, winding is tending towards multilated.
According to a second aspect of the invention, provide a kind of manufacturing equipment that can carry out the method for making concentric stranded bead cord.Described manufacturing equipment comprises driver element, reel, the reel transfer device that pendulum gear is relative with two.Described driver element along the circumferential direction rotates toroidal cores.Described reel is the winding part supply side line of described toroidal cores.Described pendulum gear makes described reel carry out pendular movement along the surface of described toroidal cores, thereby a end in pendulum cycle of described reel, make described reel move to the position of inboard that described reel crosses the circle of described toroidal cores, and, make described reel move to the position in the outside that described reel crosses the circle of described toroidal cores at the other end in described pendulum cycle.Described two relative reel transfer devices are arranged on the both sides on the surface of described toroidal cores with the distance that does not influence described toroidal cores and along the circumferential direction rotate.By making described reel repeatedly be transverse to the inboard and the outside of the circle of described toroidal cores, be wrapped on the described toroidal cores with respect to the surface of described toroidal cores with making the side line continuous helical extracted out from described reel.The position of fulcrum of the pendular movement of described reel is set, make the described side line of process of circle of the side line extracted out from described reel and described toroidal cores be wrapped in angle between the tangent line of the winding point on the described toroidal cores in following scope, that is: with respect to described tangent line a side opposite with described toroidal cores be 15 the degree in, and with respect to described tangent line with described toroidal cores one side be 55 the degree in.
In this article, angle between the side line of extracting out from described reel and the horizontal line that is wrapped in the winding point on the described toroidal cores through described side line refers to the angle between the horizontal line of following straight line and the winding point that passes through described side line: described straight line be connected described winding point and when extracting described side line out the reel twisting surface of described line separate the point at place with described reel (referring to the α among Fig. 1
1And α
2).
Described driver element comprises two pinch rolls.Described two pinch rolls make described toroidal cores under stable status along the circumferential direction the rotation and without any slip.Grip unit is arranged on the side line supply side, and prevents to produce lateral shift owing to the winding point in described side line and described toroidal cores keeps whole periphery, simultaneously described winding point is positioned.
Correspondingly, according to the present invention, a kind of method of making annular concentric stranded bead cord can be provided, because make reel carry out pendular movement, described method makes it possible to carry out twine and provide at a high speed good winding performance, and make it possible to by the stabilizing ring core along the circumferential direction rotation and do not upset the side line ordered state, thereby obtain the good formability of cord.
Description of drawings
Fig. 1 is the front view according to the equipment of manufacturing annular concentric stranded bead cord of the present invention, wherein solid line representative is positioned at the state in the outside of the circle of toroidal cores at the end reel in reel pendular movement cycle, and dotted line is illustrated in the state of inboard that the other end reel in reel pendular movement cycle is positioned at the circle of toroidal cores;
Fig. 2 is the perspective view of Fig. 1.
Fig. 3 is the right view of Fig. 1.
Fig. 4 is the left view of Fig. 1.
Fig. 5 is the plane of Fig. 1.
Fig. 6 A to Fig. 6 C illustrates the exemplary grip unit that is arranged on the driver element.
Fig. 7 is the partial plan layout of equipment shown in Figure 1, and the reel transfer device is shown.
Fig. 8 A to Fig. 8 D is the concept nature plane of the mobile status of reel when annular concentric stranded bead cord constructed in accordance.
Fig. 9 A illustrates the full annular concentric stranded bead cord.
Fig. 9 B is the perspective view of annular concentric stranded bead cord.
Figure 10 is the concept nature front view of the mobile status of reel when making relevant annular concentric stranded bead cord.
Figure 11 A is the concept nature plane of the mobile status of reel when making relevant annular concentric stranded bead cord with Figure 11 B.
Figure 12 is a concept map of making the relevant device of annular concentric stranded bead cord, and wherein toroidal cores flatly moves.
Figure 13 is a concept map of making the relevant device of annular concentric stranded bead cord, and wherein toroidal cores is carried out pendular movement.
Figure 14 is the concept map that the pendular movement state of equipment shown in Figure 13 is shown.
The specific embodiment
Below with reference to the equipment of Fig. 1 to Fig. 8 description according to the manufacturing annular concentric stranded bead cord of the embodiment of the invention.
Manufacturing equipment comprises driver element 10 and feeding unit 20.Driver element 10 makes toroidal cores 1 along the circumferential direction rotate in the fixed position.Feeding unit 20 will be wrapped in the winding part that side line 2 on the reel 21 supplies to toroidal cores 1.
The grip unit 13 of surrounding toroidal cores 1 is arranged on the pillar 11, to be arranged in the supply side that is positioned at the side line 2 on the direction relative with the direction of rotation of toroidal cores 1.Grip unit 13 comprises two roller 13a and 13b and prevents the skew of toroidal cores 1 on front/rear direction, with retaining ring core 1 along the circumferential direction stable rotation in perpendicular.But grip unit 13 is set the winding point of side line 2 to guarantee having high prehensile.In addition, for the rotation of stabilizing ring core 1 in perpendicular, the guide reel 15a of the bottom of guided rings core 1 and 15b are arranged on the lead arm 15 that flatly extends out from pillar 11.
By preventing that toroidal cores 1 from lateral shift taking place, even and the equal diameters of the diameter of cord and final finished cord, also toroidal cores 1 can be surrounded, keep the stable circumference rotation of toroidal cores 1 thus, grip unit 13 (comprising two roller 13a and 13b) has the function of the winding point of fixing strand starting point as side line 2.Therefore, form of grooves is not subjected to limit especially.Correspondingly, except U-shaped form of grooves as shown in Figure 6A, form of grooves can be arc groove or the v-depression shown in Fig. 6 C shown in Fig. 6 B.
The feeding unit 20 of side line 2 carries out pendular movement.The support arm 18 that supports feeding unit 20 carries out pendular movement, thereby make the outside (shown in the solid line of Fig. 1) that is positioned at the circle of toroidal cores 1 at an end reel 21 in pendular movement cycle, and be positioned at the inboard (shown in the dotted line of Fig. 1) of the circle of toroidal cores 1 at the other end reel 21 in pendular movement cycle.
As shown in Figure 7, the feeding unit 20 of side line 2 comprises: reel 21, and it furls side line 2; And box 23, it has the diameter bigger slightly than the external diameter of reel 21, and comprises the cylindrical peripheral wall consistent with the insied width of reel 21 at least.Reel 21 rotatably is contained in the box 23, thereby makes side line by box-packed to cover whole side line 2 twisting surfaces.On the periphery wall of box 23, be formed with and extract the hole out.Side line 2 is extracted out towards the grip unit 13 of the winding point of toroidal cores 1 from extracting the hole out.
Having in advance, the side line 2 of the winding diameter of adjustment is wrapped on the reel 21 and is arranged in the box 23 of feeding unit 20.Suitable is that the winding diameter of adjusting the side line 2 that is furled by reel 21 in advance is to satisfy any one in the following expression formula:
0.90D
R≤ D
SO≤ 3.3D
RAnd
0.55D
C≤D
SO≤2.0D
C
D wherein
RBe the external diameter of reel, D
SOBe the adjusted winding diameter of side line and D
CIt is the central diameter of toroidal cores.
The feeding unit 20 of side line 2 is arranged on in two box supports 22 at the place ahead and rear one.Box support 22 is arranged on the top of the support arm 18 that carries out pendular movement.The distance that feeding unit 20 of side line 2 can not clash into toroidal cores 1 when box support 22 carried out pendular movement with it is arranged on the both sides of toroidal cores 1 vertically.On the relative position of the end of two box supports 22, guide rod 24 and transfer device are set.Guide rod 24 is installed on the box 23 in a movable manner.The box 23 that transfer device will be installed on the guide rod 24 is transferred on another guide rod 24.
As shown in Figure 7, each transfer device comprises: bar 26, and it moves into and shifts out by cylinder 25; And head board 27, its promotion is arranged on the core of the box 23 of bar 26 ends.The bar 26 at cylinder 25 places is stretched out,, thereby make the box 23 that is installed on the guide rod 24 transfer on another guide rod 24 with core by head board 27 promotion boxes 23.
Thereby support arm 18 is arranged on the workbench 14 and carries out pendular movement by swing mechanism 30, and swing mechanism 30 is arranged on pillar 11 belows and has rotating disc 31 and crank axle 32.
Suitable is in order to start the winding of side line 2 reliably, to use unvulcanized rubber sheet or splicing tape to be temporarily fixed on the toroidal cores 1 by the end of artificial means with side line 2.Because therefore unvulcanized rubber sheet and rubber for tire homogeneity do not need to be removed after this.Correspondingly, after the end with side line 2 temporarily is fixed on the toroidal cores 1, toroidal cores 1 is along the circumferential direction rotated.Twine for S, the reel 21 of side line 2 is placed surface right-hand of toroidal cores 1.Be positioned at the state in the outside of the circle of toroidal cores 1 shown in the solid line of Fig. 1 from reel 21, support arm 18 carries out pendular movement, till reel 21 enters in the circle of toroidal cores 1 shown in the dotted line of Fig. 1.The cylinder 25 that is arranged on box support 22 ends is used for moving reel 21 along the direction perpendicular to the surface of toroidal cores 1, and box 23 is transferred on the guide rod 24 of another box support 22, has carried out half winding like this.Then, be positioned at the state of inboard of the circle of toroidal cores 1 from reel 21 shown in the dotted line of Fig. 1, support arm 18 carries out pendular movement, enters shown in the solid line of Fig. 1 up to reel 21 till the outside of circle of toroidal cores 1.When the outside of reel 21, when cylinder 25 moves box 23 and reel 21 along the direction perpendicular to the surface of toroidal cores, finish a winding at the circle of toroidal cores 1.
As mentioned above, when toroidal cores 1 is along the circumferential direction rotated in the fixed position and reel 21 relative toroidal cores 1 when carrying out pendular movement, with reference to tangent line (horizontal line among this embodiment) H, from the following situation of generation of looking by reel 21 supplies and the direction of side line 2 that arrives the winding point of toroidal cores 1 through the winding point of toroidal cores 1.Promptly, position according to the fulcrum 19 of the pendular movement of reel 21 (that is to say, horizontal level at the fulcrum 19 of the lower end of support arm 18), from the end points in pendulum cycle (promptly shown in the dotted line of Fig. 1, this moment, reel 21 was in the position of the inboard of the circle that crosses toroidal cores 1) arrive another end points in pendulum cycle (promptly shown in the solid line of Fig. 1, this moment, reel 21 was in the position in the outside of the circle that crosses toroidal cores 1), the direction of side line 2 changes vertically with respect to horizontal line.Angle between the direction of horizontal line H and side line 2 (vertically changing generation) α by this
1And α
2When becoming too big, the ordered state variation of side line.
As shown in Figure 1, angle α
1And α
2Be to twine the angle that forms between tangent line (horizontal line) H of point at the circle of following straight line and toroidal cores 1 through side line: this straight line is connected and twines some reel twisting surface of line with at the extraction side line time separates the place with reel point.
Because side line 2 is wrapped on the reel 21 along the direction identical with the direction that is wrapped in toroidal cores 1, make minimum winding diameter be approximately 55% of toroidal cores diameter, therefore, side line 2 twines from the winding point top of toroidal cores 1 and (that is to say, with respect to the tangent line side relative with toroidal cores) with side line 2 twine below the winding point of toroidal cores 1 (that is to say) with respect to the toroidal cores side of tangent line inequality for the influence of ordered state.It is bigger for the influence of side line 2 ordered states when side line twines from twining the some top.With respect to tangent line (horizontal line) H through the winding point of side line 2 on toroidal cores 1 of the circle of toroidal cores 1, the angle that the ordered state of side line 2 is not produced adverse effect is the angle in the scope in spend to the downside 55 of horizontal line H in horizontal line H upside 15 degree.Determine the position of the fulcrum of the pendular movement of reel 21, that is, the horizontal level of the fulcrum 19 of support arm 18 makes side line be wrapped in the winding point place of toroidal cores in above-mentioned angular range.
Next, Fig. 8 A to Fig. 8 D illustrates the mobile route and the motion path that carries out the reel 21 of pendular movement of the reel 21 that twines side line 2.
That is to say that be positioned at the state of the outer fix (shown in Fig. 8 A) of toroidal cores 1 from reel 21, reel 21 carries out pendular movement, is positioned at the state of the circle position (shown in Fig. 8 B) of toroidal cores 1 up to reel 21.The reel 21 that is in position shown in Fig. 8 B is transferred to the apparent surface of toroidal cores 1 (shown in Fig. 8 C).Then, when reel 21 was on the apparent surface of toroidal cores 1, reel 21 carried out pendular movement, up to the state of reel 21 from the outer fix (shown in Fig. 8 D) of the circle of the arrival of the position shown in Fig. 8 C toroidal cores 1.Then, reel 21 turns back to the initial point position (that is the position shown in Fig. 8 A) of initial surface from the apparent surface of toroidal cores 1.Repeat the circulation of these motions.Correspondingly, in the present invention, reel 21 carries out such pendular movement, i.e. the position to the position shown in Fig. 8 B, shown in Fig. 8 C, the position shown in Fig. 8 D and turn back to position shown in Fig. 8 A from the position shown in Fig. 8 A.In addition, reel 21 edges move to the position shown in Fig. 8 C perpendicular to the direction on the surface of toroidal cores 1 from the position shown in Fig. 8 B, and move to the position shown in Fig. 8 A from the position shown in Fig. 8 D.Like this, side line 2 is wrapped on the toroidal cores 1 spirally.
Suitable is, the amount of exercise of reel 21 is minimums when reel 21 vertically crosses toroidal cores 1, and this minimum allows reel 21 around toroidal cores 1 motion and with respect to the winding deviation angle β on the surface of toroidal cores 1
sBe not more than 29 degree.When this angle was spent greater than 29, itself and the poor of torsion angle became big, thereby the arrangement or the layout of side line 2 produced adverse effect.
Be wrapped in side line 2 on the reel 21 and be deformed to the winding diameter of winding state.When the bending direction of the side line 2 that is twined was opposite with the bending direction that twines some place toroidal cores 1, the side line 2 of winding was along the bending direction compressing toroidal cores 1 of toroidal cores 1, thereby made the shape of toroidal cores depart from the circular concurrent distortion of giving birth to.Therefore, winding process is tending towards multilated.Therefore, in this embodiment, as shown in Figure 1, the bending direction of the side line of extracting out from reel 21 2 is along the direction of toroidal cores 1 in the bending of twining some formation.Therefore, side line 2 is wound in and makes that the bending direction of side line 2 distortion is the bending direction along toroidal cores 1, thereby is difficult to upset the winding of side line 2.
Although in the above-described embodiments, twine side line 2 in toroidal cores 1 upper edge S direction, for example can lamination two-layer or three layers etc. side line 2.When twining along the Z direction when two-layer, reel 21 only needs to carry out pendular movement, transverse direction is a rightabout, that is to say position from the position shown in Fig. 8 D to the position shown in Fig. 8 C, shown in Fig. 8 B and the position shown in Fig. 8 A and turn back to position shown in Fig. 8 D.When changing over, for example when three layers or four layers, adopt with winding one deck or when two-layer identical method twine.
In addition, although in the above-described embodiments, side line 2 is wrapped in the peak part that winding point on the toroidal cores 1 is arranged on toroidal cores 1, twines point and can also be arranged on any other position on the toroidal cores 1.No matter the position of winding point how, the position of fulcrum of the pendular movement of reel 21 is set, make the angle that passes through between the tangent line that side line 2 is wrapped in the winding point on the toroidal cores 1 of circle of (from reel 21, extracting out) side line 2 and toroidal cores 1 be in the following scope, that is: with respect to this tangent line a side opposite with toroidal cores be 15 the degree in, and with respect to this tangent line the toroidal cores side be 55 the degree in.
Use is made individual layer lamination bead cord and two-layer lamination bead cord according to the equipment of present embodiment under different conditions, and the winding performance and the formability of assessment product.Found that, are winding deviation angle β with respect to the toroidal cores surface to the factor of these two properties influence maximums
sAnd the angle of the circle of side line and toroidal cores between the tangent line (horizontal line H in the embodiment shown in fig. 1) that twines the some place.Find in addition, to these two second largest factors of the properties influence tension force that is side lines and the winding diameter of adjusting in advance of side line.In its result shown in the table 1.
Assessment is as the winding performance and the formability of estimation items in the table 1 below.
(1) winding performance
Cord is arranged on the flat surfaces of workbench for example, and use rule measure cord from the maximal clearance of the position of workbench projection to carry out following assessment.Sample size n is 20.
A: the quantity that the gap is less than or equal to the sample of 0.5mm is at least 11, and the gap of all other samples is for being less than or equal to 1.0mm.
B: the gap is less than or equal to the quantity of sample of 0.5mm less than 11, and the gap is less than or equal to the quantity of sample of 1.0mm more than or equal to 11.
C: the gap is less than or equal to the quantity of sample of 1.0mm less than 11, and the gap is less than or equal to the quantity of sample of 1.5mm more than or equal to 11.
D: the gap is less than or equal to the quantity of sample of 1.5mm less than 11.
(2) formability
By the visual observation side line in toroidal cores or the lip-deep arrangement performance of winding of single layer medium line.Sample size n is 20.
A: in the arrangement of 20 samples, do not upset.
B: in the arrangement of at least 18 samples, do not upset.
C: do not upset at least 10 samples and in less than the arrangement of 18 samples.
D: in less than the arrangement of 10 samples, do not upset.
Table 1
| Estimation items | |||||||||
| Distinguish item | The cord numbering | The bead cord structure | Product torsion angle β (°) | The maximum of side line is twined deviation angle β s(°) | The horizontal wraparound diameter is than (1) (D SO/D R) | The horizontal wraparound diameter is than (2) (D SO/D R) | Horizontal line and the scope of twining angle between the side line at place | Cord coiling performance | The cord formability |
| Comparative example | 1 | 1×1.5+(6)×1.4 | 3.4 | 34 | 1.32 | 0.80 | 9 ° (line below)～49 ° (line below) | D | D |
| Comparative example | 2 | 1×1.5+(6)×1.4 | 3.4 | 28 | 3.36 | 2.03 | 9 ° (line below)～49 ° (line below) | D | C |
| Comparative example | 3 | 1×1.5+(6)×1.4 | 3.4 | 23 | 0.88 | 0.53 | 9 ° (line below)～49 ° (line below) | D | C |
| Comparative example | 4 | 1×1.5+(6)×1.4 | 3.4 | 23 | 1.09 | 0.66 | 18 ° (line top)～41 ° (line below) | C | D |
| Comparative example | 5 | 1×1.5+(6)×1.4 | 3.4 | 23 | 1.32 | 0.80 | 16 ° (line top)～57 ° (line below) | D | D |
| Embodiment | 6 | 1×1.5+(6)×1.4 | 3.4 | 23 | 1.09 | 0.66 | 13 ° (line top)～46 ° (line below) | B | C |
| Embodiment | 7 | 1×1.5+(6)×1.4 | 3.4 | 19 | 1.25 | 0.75 | 4 ° (line top)～43 ° (line below) | B | B |
| Embodiment | 8 | 1×1.5+(6)×1.4 | 3.4 | 23 | 1.32 | 0.80 | 25 ° (line below)～50 ° (line below) | B | B |
| Embodiment | 9 | 1×1.5+(6)×1.4 | 3.4 | 19 | 1.25 | 0.75 | 25 ° (line below)～50 ° (line below) | A | B |
| Embodiment | 10 | 1×1.5+(6)×1.4 | 3.4 | 19 | 1.25 | 0.75 | 21 ° (line below)～43 ° (line below) | A | A |
| Comparative example | 11 | 1×1.8+(7+13)×1.4 | 5.8 | 35 | 1.38 | 0.85 | 6 ° (line below)～47 ° (line below) | D | D |
| Comparative example | 12 | 1×1.8+(7+13)×1.4 | 5.8 | 27 | 3 33 | 2.05 | 6 ° (line below)～47 ° (line below) | D | C |
| Comparative example | 13 | 1×1.8+(7+13)×1.4 | 5.8 | 23 | 0.89 | 0.54 | 6 ° (line below)～47 ° (line below) | D | C |
| Comparative example | 14 | 1×1.8+(7+13)×1.4 | 5.8 | 23 | 1.14 | 0.70 | 18 ° (line top)～38 ° (line below) | C | D |
| Comparative example | 15 | 1×1.8+(7+13)×1.4 | 5.8 | 23 | 1.29 | 0.80 | 17 ° (line top)～56 ° (line below) | D | D |
| Embodiment | 16 | 1×1.8+(7+13)×1.4 | 5.8 | 23 | 1.14 | 0.70 | 13 ° (line top)～43 ° (line below) | B | C |
| Embodiment | 17 | 1×1.8+(7+13)×1.4 | 5.8 | 19 | 1.29 | 0.80 | 5 ° (line top)～41 ° (line below) | B | B |
| Embodiment | 18 | 1×1.8+(7+13)×1.4 | 5.8 | 23 | 1 38 | 0.85 | 22 ° (line below)～48 ° (line below) | B | B |
| Embodiment | 19 | 1×1.8+(7+13)×1.4 | 5.8 | 19 | 1.29 | 0.80 | 22 ° (line below)～49 ° (line below) | A | B |
| Embodiment | 20 | 1×1.8+(7+13)×1.4 | 5.8 | 19 | 1.29 | 0.80 | 19 ° (line below)～41 ° (line below) | A | A |
Claims (8)
1. method of making annular concentric stranded bead cord comprises:
When toroidal cores is along the circumferential direction rotated, the reel that is wound with side line on it crosses and reciprocates to the inboard and the outside of the circle of described toroidal cores with respect to the surface of described toroidal cores, so repeat twining movement, thereby make the winding deviation angle β of described side line with respect to the surface of described toroidal cores so that described reel crosses
sBe not more than 29 degree, like this, the side line of extracting out from described reel is wrapped on the described toroidal cores continuously forming one or more jacket layers,
Wherein, described reel is pendular movement with respect to the in-plane moving on the surface of described toroidal cores, and,
Make described reel move to the position of inboard that described reel crosses the circle of described toroidal cores at the end in pendulum cycle, and make described reel move to the position in the outside that described reel crosses the circle of described toroidal cores at the other end in pendulum cycle, so by making described reel repeatedly be transverse to the inboard and the outside of the circle of described toroidal cores with respect to described toroidal cores surface, be wrapped on the described toroidal cores the described side line continuous helical of from described reel, extracting out, the position of fulcrum of the pendular movement of described reel is set, make the described side line of process of circle of the described side line extracted out from described reel and described toroidal cores be wrapped in angle between the tangent line of the winding point on the described toroidal cores in following scope, that is: with respect to described tangent line a side opposite with described toroidal cores be 15 the degree in, and with respect to described tangent line described toroidal cores one side be 55 the degree in.
2. the method for manufacturing annular concentric stranded bead cord according to claim 1, wherein,
By using unvulcanised or semi-cure sheet rubber that the winding initiating terminal of described side line is temporarily fixing, be wrapped on the described toroidal cores the described side line continuous helical of from described reel, extracting out.
3. the method for manufacturing annular concentric stranded bead cord according to claim 1, wherein,
Adjust the winding diameter of the described side line that furls by described reel in advance, to satisfy any one in the following expression formula:
0.90D
R≤ D
SO≤ 3.3
DRAnd
0.55
DC≤D
SO≤2.0D
C
D wherein
RBe the external diameter of described reel, D
SOBe the adjusted winding diameter of described side line, D
CIt is the central diameter of described toroidal cores.
4. the method for manufacturing annular concentric stranded bead cord according to claim 1, wherein,
The bending direction of the described side line of extracting out from described reel is stated the bending direction of toroidal cores along described winding point place.
5. equipment of making annular concentric stranded bead cord comprises:
Driver element, it along the circumferential direction rotates toroidal cores;
Reel, it is the winding part supply side line of described toroidal cores;
Pendulum gear, it makes described reel carry out pendular movement along the surface of described toroidal cores, thereby a end in pendulum cycle of described reel, make described reel move to the position of inboard that described reel crosses the circle of described toroidal cores, and, make described reel move to the position in the outside that described reel crosses the circle of described toroidal cores at the other end in described pendulum cycle; And
Two relative reel transfer devices, it is arranged on the both sides on the surface of described toroidal cores not influence described toroidal cores along the distance of described circumferencial direction rotation,
Wherein, by making described reel repeatedly be transverse to the inboard and the outside of the circle of described toroidal cores with respect to the surface of described toroidal cores, be wrapped on the described toroidal cores with making the described side line continuous helical extracted out from described reel, and the position of fulcrum of the pendular movement of described reel is set, make the described side line of process of circle of the described side line extracted out from described reel and described toroidal cores be wrapped in angle between the tangent line of the winding point on the described toroidal cores in following scope, that is: with respect to described tangent line a side opposite with described toroidal cores be 15 the degree in, and with respect to described tangent line described toroidal cores one side be 55 the degree in.
6. the equipment of manufacturing annular concentric stranded bead cord according to claim 5, wherein,
Described driver element comprises two pinch rolls, described pinch roll makes described toroidal cores rotation, described equipment also comprises grip unit, described grip unit is arranged on the side line supply side of described two pinch rolls, loosely guide described toroidal cores, and when being wound in described side line on the described toroidal cores as described winding point.
7. the equipment of manufacturing annular concentric stranded bead cord according to claim 5, wherein,
The minimum range setting of described two relative reel transfer devices to allow described reel around the surface of described toroidal cores, to move.
8. the equipment of manufacturing annular concentric stranded bead cord according to claim 5, wherein,
The described reel that is wound with described side line on it rotatably is contained in the box, described box has the cylindrical peripheral wall consistent with the insied width of described reel and slightly greater than the diameter of the external diameter of described reel, the periphery wall of described box has the extraction hole, and described side line is extracted out from described extraction hole.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006332954 | 2006-12-11 | ||
| JP2006332954 | 2006-12-11 | ||
| JP2007116046 | 2007-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101200120A true CN101200120A (en) | 2008-06-18 |
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ID=39515563
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101990263A Pending CN101200120A (en) | 2006-12-11 | 2007-12-07 | Method and apparatus of manufacturing annular concentric stranded bead cord |
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| CN (1) | CN101200120A (en) |
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| CN102161068A (en) * | 2011-03-29 | 2011-08-24 | 天津赛象科技股份有限公司 | Prebending device in production line of six-station winding machine |
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| CN102161068A (en) * | 2011-03-29 | 2011-08-24 | 天津赛象科技股份有限公司 | Prebending device in production line of six-station winding machine |
| CN102161068B (en) * | 2011-03-29 | 2012-06-20 | 天津赛象科技股份有限公司 | Prebending device in production line of six-station winding machine |
| CN103874573A (en) * | 2011-08-11 | 2014-06-18 | 株式会社普利司通 | Cable bead manufacturing method and device therefor |
| US9624070B2 (en) | 2011-08-11 | 2017-04-18 | Bridgestone Corporation | Cable bead manufacturing method and apparatus therefor |
| CN103874573B (en) * | 2011-08-11 | 2017-10-13 | 株式会社普利司通 | The manufacture method and its device of cable tyre bead |
| CN103170560A (en) * | 2013-04-12 | 2013-06-26 | 哈尔滨工大宏图橡塑科技有限公司 | Steel wire ring winding machine |
| CN103203423A (en) * | 2013-04-12 | 2013-07-17 | 哈尔滨工大宏图橡塑科技有限公司 | Bead positioning and clamping platform of bead winding machine |
| CN109435301A (en) * | 2018-12-28 | 2019-03-08 | 江苏兴达钢帘线股份有限公司 | A kind of cable type tyre bead silk manufacturing equipment |
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Application publication date: 20080618 |