JP2009061633A - Manufacturing equipment and method for cord-reinforced body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide manufacturing equipment and a method for a cord-reinforced body, which can improve the productivity of the cord-reinforced body to be arranged in the annular, reinforcement-intended part. <P>SOLUTION: By supplying the cord C to the groove 18B of the index rotor 18 and turning the index rotor 18 on its axial line, the cord is moved to the position opposite to the disc 12. When the cord C is moved to the position opposite to the disc 12, the cord C is pushed out from the circumferential part 18A of the index rotor 18 to the disc 12 and attached thereto by the cord holder 62 and the hammer 64 which can advance outside of the circumferential part 18A of the index rotor 18 and retreat inside. The cord C is sent by a predetermined length to the U-shaped groove 44A of the rotary part 44 which is installed in the upper part side of the index rotor 18, and the sent cord C is cut to a predetermined length by the cutter 34. Then, the rotary part 44 is rotated to make the cord C drop to the groove 18B of the index rotor 18. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cord reinforcing body manufacturing apparatus and method.

  In heavy-duty pneumatic radial tires and the like, the sidewall portion is reinforced by using a cord reinforcement body such as a wire chafer to reduce the falling deformation of the bead portion and increase the durability of the bead portion (for example, patents) Reference 1 and Patent Reference 2).

  As a method of forming such a sidewall portion, first, a sheet-like cord reinforcing body composed of a cord and rubber is formed in accordance with the shape of the sidewall portion (annular reinforcement target portion), and thereafter There is known a method in which one or more layers of a cord reinforcing body formed in advance is wound around a predetermined position of a lower layer member on the outer periphery of a forming drum when the green tire is formed.

As another method, a cord cut into a predetermined length is arranged on the disk along its circumferential direction to form an annular cord reinforcement, and the cord reinforcement is The method of transferring to the side wall portion of the green tire can be considered. In this method, the method of repeatedly supplying the cut cord to the index-rotating rotor and the step of extruding and crimping the cut cord from the rotor to the disc while rotating the disc around the axis line is a method of performing the cord reinforcement. This is effective when considering production efficiency.
JP 2001-191757 A JP 2002-191758 A

  By the way, in the above-described method of forming the sidewall portion using the index rotating rotor, in order to increase the productivity (production speed) of the cord reinforcement body, it is necessary to increase the rotational speed of the rotor. It is required to shorten the cycle time for supplying the cut code to the rotor.

  In consideration of the above-described facts, an object of the present invention is to provide a cord reinforcing body manufacturing apparatus and method capable of improving the productivity of a cord reinforcing body disposed in an annular reinforcing target portion.

  The cord reinforcing body manufacturing apparatus according to claim 1, wherein a rotating body that holds a cord at a peripheral portion and rotates around an axis, and an annular cord attaching portion, a part of the rotating portion at a peripheral portion of the rotating body. A cord adhering portion rotating means that rotates around an axis in opposition to each other; an extruding member that is capable of entering and exiting the inside and outside of the peripheral portion of the rotating body and pushes the cord from the peripheral portion of the rotating body to the cord adhering portion; A code conveying means for sending a code along the periphery of the rotating body to the upper side of the rotating body; a cord cutting means for cutting the code sent by the code conveying means into a predetermined length; and the code conveying means. And a delivery member for holding the cord to be sent and dropping the cord cut by the cord cutting means onto the peripheral portion of the rotating body.

  In the cord reinforcing body manufacturing apparatus according to claim 1, the cord cut into a predetermined length is delivered to the peripheral portion of the rotating body by the delivery member, and the rotating body rotates around the axis, whereby the cord becomes a circle. It moves to a position facing the annular code adherend. And an extrusion member protrudes to the outer side of the surrounding part of a rotary body, and pushes a code | cord | chord from the peripheral part of a rotary body to a code | cord | chord adhesion part.

  By repeating the above operation while rotating the code adherence portion around the axis by the code adherence rotating means, a plurality of cords are arranged on the annular cord adherence portion along the circumferential direction. To go. Thereby, an annular cord reinforcement body in which a plurality of cords are arranged along the circumferential direction of the cord attaching portion is formed on the annular cord attaching portion.

  Accordingly, the annular cord reinforcement can be disposed on the annular reinforcement object portion by transferring the annular cord reinforcement body from the cord attaching portion to the annular reinforcement object portion. In addition, when the annular cord attaching portion is the reinforcement target portion, the annular cord reinforcing body can be disposed on the annular reinforcement subject portion by attaching the cord to the cord attaching portion.

  Further, in this manufacturing apparatus, first, the cord is sent by the cord conveying means to the upper side of the rotating body while being held from the holding member along the peripheral portion of the rotating body, and the cord cutting means has a predetermined length. Disconnected. The cord cut into a predetermined length is dropped onto the peripheral portion of the rotating body due to the angular displacement of the delivery member. Thereby, the cord cut into a predetermined length is delivered to the peripheral portion of the rotating body.

  Here, by dropping the cord from the delivery member to the circumference of the rotating body, the cord is delivered to the circumference of the rotating body, and a member for pushing and moving the cord to the circumference of the rotating body is provided. By making it unnecessary, it is possible to send the cord onto the delivery member by the cord conveying means immediately after the cord is dropped.

  Therefore, it is possible to shorten the cycle time of the operation of supplying the cord to the rotating body, and it is possible to improve the productivity of the cord reinforcing body disposed in the annular reinforcement target portion.

  The cord reinforcing body manufacturing apparatus according to claim 2 is the cord reinforcing body manufacturing apparatus according to claim 1, wherein the rotating body is provided with a magnet for attracting the cord to the peripheral portion of the rotating body by magnetic force. It is characterized by being.

  In the cord reinforcing body manufacturing apparatus according to the second aspect, the cord dropped from the delivery member onto the peripheral portion of the rotating body is attracted to the peripheral portion of the rotating body by the magnetic force of the magnet provided on the rotating body. Therefore, it is possible to prevent the cord from dropping from the rotating body when the code is delivered to the rotating body and when the rotating body is rotated.

  The cord reinforcing body manufacturing apparatus according to claim 3 is the cord reinforcing body manufacturing apparatus according to claim 1 or 2, wherein an extruding operation of the pushing member and a delivering operation of the delivering member are synchronized. It is characterized by being.

  In the cord reinforcing body manufacturing apparatus according to claim 3, a series of processes from supplying the cord to the rotating body and attaching the cord to the cord attaching portion by synchronizing the pushing operation of the pushing member and the delivering operation of the delivery member. The operation cycle time is shortened.

  The cord reinforcing body manufacturing apparatus according to claim 4 is the cord reinforcing body manufacturing apparatus according to any one of claims 1 to 3, wherein the cord is transferred to the delivery member by the cord transporting means. A groove portion to be fed in is provided, and the delivery member rotates to drop the cord from the groove portion with the groove portion facing downward.

  In the cord reinforcing body manufacturing apparatus according to claim 4, the cord is fed into a groove portion provided in the delivery member, the delivery member rotates, and the groove portion faces downward, whereby the cord is moved from the delivery member to the peripheral portion of the rotating body. It is dropped to. Thereby, during the rotating operation of the delivery member, the falling direction of the cord loaded in the groove is regulated by the groove wall. Therefore, the accuracy of the operation of supplying the cord to the peripheral portion of the rotating body can be improved.

  The cord reinforcing body manufacturing apparatus according to claim 6 includes a rotating body that holds a cord at a peripheral portion and rotates around an axis, and an annular cord attaching portion, a part of which is on the peripheral portion of the rotating body. A cord adhering portion rotating means that rotates around an axis in opposition to each other; an extruding member that is capable of entering and exiting the inside and outside of the peripheral portion of the rotating body and pushes the cord from the peripheral portion of the rotating body to the cord adhering portion; A cord carrying means for sending a cord along the circumference of the rotating body, a holding member for holding a cord sent by the code carrying means, and a cord cutting for cutting the cord sent by the cord carrying means to a predetermined length And a magnet that is provided on the rotating body and moves the cord cut by the cord cutting means from the holding member to the peripheral portion of the rotating body by a magnetic force, and attracts the cord to the peripheral portion. And

  In the cord reinforcing body manufacturing apparatus according to claim 6, first, the cord is sent in a state of being held from the holding member along the peripheral portion of the rotating body by the cord transporting means, and is predetermined length by the cord cutting means. Disconnected. The cord cut to a predetermined length is moved from the holding member to the peripheral portion of the rotating body by the magnetic force of the magnet provided on the rotating body, and is attracted to the peripheral portion.

  Here, the cord is moved from the holding member to the peripheral portion of the rotating body by a magnetic force so that the cord is supplied to the peripheral portion of the rotating body, and the cord is pushed and moved to the peripheral portion of the rotating body. By eliminating the need for the member, it is possible to send the cord onto the holding member immediately after the cord is dropped by the cord carrying means.

  Therefore, it is possible to shorten the cycle time of the operation of supplying the cord to the rotating body, and it is possible to improve the productivity of the cord reinforcing body disposed in the annular reinforcement target portion.

  The cord reinforcing body manufacturing method according to claim 7, wherein the cord is cut by a predetermined length by feeding the cord to the upper side of the rotating body along the peripheral portion thereof while being held by the delivery member. A cord delivery step of dropping the cut cord to the peripheral portion of the rotating body by angularly displacing the delivery member; and rotating the rotating body around an axis to thereby make the cord an annular cord A cord moving step for moving the cord to a position facing the adherend, and a cord extruding step for pushing the cord from the peripheral portion of the rotating body to the cord adhering portion by an extruding member capable of moving in and out of the peripheral portion of the rotating body Are repeatedly performed while rotating the cord attaching portion around the axis, thereby forming a cord reinforcing body composed of a plurality of cords on the cord attaching portion.

  In the cord reinforcing body manufacturing method according to claim 7, the cord is cut into an annular shape by passing the cord cut to a predetermined length from the delivery member to the peripheral portion of the rotating body and rotating the rotating body around the axis. It is moved to a position facing the cord application part. And a code | cord | chord is pushed out to the code | cord | chord attaching part from the peripheral part of a rotary body by making an extrusion member project outside the peripheral part of a rotary body.

  By repeating the above operation while rotating the cord adherence around the axis, a plurality of cords are arranged on the annular cord adherence along the circumferential direction. An annular cord reinforcement body arranged along the circumferential direction of the cord attaching portion is formed on the annular cord attaching portion.

  Accordingly, the annular cord reinforcement can be disposed on the annular reinforcement object portion by transferring the annular cord reinforcement body from the cord attaching portion to the annular reinforcement object portion. In addition, when the annular cord attaching portion is the reinforcement target portion, the annular cord reinforcing body can be disposed on the annular reinforcement subject portion by attaching the cord to the cord attaching portion.

  Further, in this manufacturing method, first, the cord is fed to the upper side of the rotating body while being held by the delivery member along the peripheral portion of the rotating body, and is cut into a predetermined length. Then, by causing the delivery member to be angularly displaced, the cord cut to a predetermined length is dropped onto the peripheral portion of the rotating body and delivered to the peripheral portion of the rotating body.

  Here, by dropping the cord from the delivery member to the circumference of the rotating body, the cord is delivered to the circumference of the rotating body, and a member for pushing and moving the cord to the circumference of the rotating body is provided. By making it unnecessary, it is possible to send the cord onto the delivery member immediately after the cord is dropped.

  Therefore, it is possible to shorten the cycle time of the operation of supplying the cord to the rotating body, and it is possible to improve the productivity of the cord reinforcing body disposed in the annular reinforcement target portion.

  A cord reinforcing body manufacturing method according to an eighth aspect of the present invention is the cord reinforcing body manufacturing method according to the seventh aspect, wherein the cord is held on a peripheral portion of the rotating body by a magnetic force.

  In the cord reinforcing body manufacturing method according to the eighth aspect, the cord dropped from the holding member to the peripheral portion of the rotating body is attracted to the peripheral portion of the rotating body by magnetic force. Therefore, it is possible to prevent the cord from dropping from the rotating body when the code is supplied to the rotating body and when the rotating body is rotated.

  The cord reinforcing body manufacturing method according to claim 9 is the cord reinforcing body manufacturing method according to claim 7 or 8, wherein the pushing operation of the pushing member and the delivering operation of the delivering member are synchronized. It is characterized by.

  In the cord reinforcing body manufacturing method according to claim 9, a series of processes from supplying the cord to the rotating body and adhering to the cord attaching portion by synchronizing the pushing operation of the pushing member and the delivering operation of the delivery member. The operation cycle time is shortened.

  The cord reinforcing body manufacturing method according to claim 10, wherein the cord is cut by a predetermined length by feeding the cord to the upper side of the rotating body along the peripheral portion thereof while being held by the holding member. A cord delivery step of moving the cut cord from the holding member to the peripheral portion of the rotator by magnetic force; and rotating the rotator about an axis to thereby make the cord an annular cord attaching portion. A cord moving step for moving the cord to a position opposed to the cord, and a cord pushing step for pushing the cord from the peripheral portion of the rotating body to the cord adhering portion by an extruding member capable of moving in and out of the peripheral portion of the rotating body. A cord reinforcing body composed of a plurality of cords is formed on the cord attaching portion by repeatedly performing the cord attaching portion while rotating around the axis.

  In the cord reinforcing body manufacturing method according to the tenth aspect, first, the cord is fed along the peripheral portion of the rotating body while being held by the holding member, and is cut into a predetermined length. Then, the cord having a predetermined length held by the holding member is moved to the peripheral portion of the rotating body by a magnetic force.

  Here, the cord is moved from the holding member to the peripheral portion of the rotating body by a magnetic force so that the cord is supplied to the peripheral portion of the rotating body, and the cord is pushed and moved to the peripheral portion of the rotating body. By eliminating the need for the member, it is possible to send the cord onto the holding member immediately after the cord is dropped.

  Therefore, it is possible to shorten the cycle time of the operation of supplying the cord to the rotating body, and it is possible to improve the productivity of the cord reinforcing body disposed in the annular reinforcement target portion.

  As described above, according to the present invention, it is possible to provide a cord reinforcing body manufacturing apparatus and method that can improve the productivity of a cord reinforcing body disposed in an annular reinforcement target portion. .

  Next, first and second embodiments of a cord reinforcing body manufacturing apparatus and method according to the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the cord reinforcing body manufacturing apparatus 10 according to the first embodiment uses a steel cord (insulation cord) C whose surface is covered with rubber as a disk surface 12A (cord attachment portion) of a disk 12. ) To form an annular cord reinforcement 14 (see FIG. 2) on the disk 12. The annular cord reinforcement body 14 formed on the disk 12 is transferred to a sidewall portion of a green tire (raw tire) as an annular reinforcement target portion.

  The cord reinforcing body manufacturing apparatus 10 is provided with a disc rotating mechanism (code attaching portion rotating means) 16 that holds the disc 12 and rotates it around its axis, and a peripheral portion of the disc surface 12A is opposed to a part of the disc surface 12A. The index rotor (rotating body) 18, the code supply mechanism (code supply means) 20 for supplying the code C to the index rotor 18, and the code extrusion mechanism (code extrusion means) 22 for pushing the code C from the index rotor 18 to the panel surface 12 </ b> A. (Refer to FIGS. 5 to 8) and a rotor rotation mechanism (rotating body rotation means) 80.

  The disc rotating mechanism 16 includes a conical disc holding portion 24, a rotating shaft 26 inserted through the disc holding portion 24 along the axis thereof, and extending from the top of the disc holding portion 24 to the opposite side of the bottom, and a rotating shaft. And a servo motor (drive means) 28 for rotating the index 26.

  The disk holding part 24 holds the disk 12 so as to be rotatable around the rotation shaft 26 by its bottom surface 24A. The servo motor 28 is controlled by a control unit (not shown), and is rotated at a predetermined speed during manufacture of the cord reinforcement body 14.

  The index rotor 18 is a cylindrical drum, and is arranged such that one end side of the axial direction (hereinafter referred to as the rotor axial direction) overlaps with a part of the board surface 12A when viewed in the normal direction of the board surface 12A. Yes. That is, one end side in the rotor axial direction of the peripheral portion 18A of the index rotor 18 faces a part of the board surface 12A. Further, the other end side in the axial direction of the index rotor 18 is rotatably supported by the support portion 30.

  The rotation axis of the index rotor 18 is disposed substantially horizontally above the rotation center of the disk 12.

  A plurality of substantially U-shaped grooves 18B extending in the rotor axial direction are provided at one end side of the circumferential portion 18A in the rotor axial direction at a predetermined pitch in the circumferential direction of the index rotor 18 (hereinafter referred to as the rotor circumferential direction). Is formed.

  As shown in FIG. 3, a plurality of magnets 19 are arranged in the index rotor 18 along the rotor circumferential direction and the rotor axial direction. Each magnet 19 is disposed so as to overlap with each groove 18B when viewed from the radial direction of the index rotor 18, and magnetically attracts the metal member dropped into each groove 18B.

  Further, as shown in FIG. 1, the cord supply mechanism 20 includes a cord transport mechanism 32 that unwinds the cord C wound on a reel (not shown) from the reel and sends it to the upper side of the index rotor 18; A cutter 34 (code cutting means, see FIG. 4) for cutting the code C sent out by the code transport mechanism 32 to a predetermined length, and a code for transferring the code C cut to a predetermined length to the groove 18B of the peripheral portion 18A And a delivery mechanism 36.

  The cord transport mechanism 32 includes a pulley 38 disposed on the other axial end side and the upper side of the index rotor 18, a pulley 40 disposed on one axial end side and the upper side of the index rotor 18, and the pulley 40. And a servo motor (drive means) 42 for rotating.

  The pulleys 38 and 40 are arranged in parallel along the rotor shaft direction, and are arranged so that the rotation shafts are substantially parallel to each other and substantially parallel to the rotation shaft 26 described above. The reel side of the cord C is wound around the pulley 38.

  That is, as the pulley 40 is rotated by the servo motor 42, the cord C is unwound from the reel, and is sent to the upper side of the index rotor 18 along the rotor axial direction.

  As shown in FIG. 1, the cord delivery mechanism 36 includes a columnar rotating portion (delivery member) 44 extending along the rotor axial direction above the one axial end side of the index rotor 18, and a rotating portion 44. Are provided with a rectangular column-shaped bearing portion 46 that supports the shaft so as to be freely rotatable (angularly displaceable about the axis), and a rotating mechanism 48 that rotates the rotating portion 44.

  As shown in FIGS. 4 to 6, the rotating portion 44 is formed with a U-shaped groove 44 </ b> A along the axial direction when viewed in the axial direction. The groove 44 </ b> A is a recess that is recessed from the circumferential surface of the rotating portion 44 toward the center of rotation.

  In addition, a circular hole 46A in which the rotating part 44 is rotatably fitted is formed in the shaft center of the bearing part 46, and the lower part of the bearing part 46 is penetrated to the lowest part of the circular hole 46A. A through groove 46B facing the top is formed.

  Here, the groove 44A and the through groove 46B have the same width, and are aligned on the same straight line in the vertical direction with the groove 44A being vertically downward. The width of the groove 44A and the through hole 46B is larger than the diameter of the cord C, and the depth of the groove 44A is also larger than the diameter of the cord C.

  Further, the lowermost portion of the pulley 40 is disposed so as to overlap with the axis of the rotating portion 44 when viewed in the rotor axial direction, and is disposed close to one axial end portion of the rotating portion 44, The cord C is sent from the pulley 40 into the groove 44A.

  As shown in FIG. 4, the cutter 34 is disposed between the lowermost part of the pulley 40 and one axial end of the rotating part 44, and cuts the cord C fed from the pulley 40 into the groove 44A. To do.

  As shown in FIGS. 1 and 5 to 8, the rotation mechanism 48 includes a link mechanism 49, a slider 50 that slidably supports the link mechanism 49, and an oscillating gear unit (pushing drive) that slides the slider 50. Part, see FIG. 1) 52.

  The slider 50 is a rectangular plate material supported on a pedestal 49 (see FIG. 8) so as to be slidable in a substantially horizontal direction and a direction substantially perpendicular to the rotor axial direction (hereinafter referred to as the rotor longitudinal direction). . The slider 50 is disposed so that its longitudinal direction is substantially parallel to the rotor axial direction and partially overlaps with the index rotor 18 in plan view.

  Here, the slider 50 is formed with a rectangular hole 50A that overlaps with a part on the rear side of the index rotor 18 in a plan view. The rectangular hole 50A extends to the outside of both ends in the axial direction of the index rotor 18 with its longitudinal direction being substantially parallel to the rotor axial direction.

  That is, the slider 50 includes a base portion 50B that extends in the rotor axial direction on the rear side of the index rotor 18, a rotor insertion portion 50C that is inserted into the index rotor 18 and extends to the outside of both axial ends. A connecting portion 50D that connects the longitudinal ends of the base portion 50B and the rotor insertion portion 50C is provided.

  As shown in FIGS. 5 to 7, the link mechanism 49 includes a link arm 51 having one end in the longitudinal direction fixed to one end in the axial direction of the rotating portion 44, and the other end in the longitudinal direction of the link arm 51. A link arm 53 rotatably connected to the portion, and a bracket 55 rotatably supporting the other longitudinal end of the link arm 53 on the base portion 50B.

  The link arm 53 extends from the axial center of the rotating portion 44 in the outer diameter direction, and the groove 44A extends vertically upward with the opening portion being substantially horizontal toward the rotor front side. In this state, the slider 50 is located at the rearmost position (a position moved to the rear side of the rotor at the maximum). Further, in a state where the link arm 53 is substantially horizontal, the groove 44A is substantially vertically downward. In this state, the slider 50 is positioned at the foremost position (a position moved to the front side of the rotor at the maximum).

  That is, in the state where the slider 50 is positioned at the retracted position, the groove 44A is in a state of being substantially horizontal with the opening portion directed toward the front side of the rotor, and the slider 50 moves forward (moves toward the front side of the rotor). The portion 44 is rotated in the clockwise direction in FIGS. 5 and 6, and the groove 44A is substantially vertically downward.

  In addition, as shown in FIG. 1, the oscillating gear unit 52 is disposed below the slider 50. The oscillating gear unit 52 is disposed on an oscillating gear (not shown), a gear box 54 for housing the oscillating gear, and an upper surface 54A of the gear box 54, and an oscillating gear output shaft 58 (FIG. 7 (A), (See (B)) and a link arm 56 (see FIGS. 7A and 7B) having one end in the longitudinal direction fixed thereto. As shown in FIG. 7, the output shaft 58 extends from the upper surface 54 </ b> A toward the upper base portion 50 </ b> B, and the link arm 56 is rotatable around the output shaft 58.

  A pin 60 protruding upward is provided at the other longitudinal end of the link arm 56. On the other hand, an elongated hole 62 into which the pin 60 is slidably fitted is formed in the base portion 50B. The long hole 62 extends in the longitudinal direction of the base portion 50B. For this reason, when the link arm 56 rotates around the output shaft 58, the base portion 50B slides in the front-rear direction of the rotor.

  Specifically, as shown in FIG. 7A, when the link arm 56 rotates counterclockwise in the figure (the pin 60 is displaced from the rotor rear side of the output shaft 58 to the rotor front side), The base portion 50B moves to the index rotor 18 side, and the link arm 56 rotates in the clockwise direction in the drawing as shown in FIG. 7B (the pin 60 is displaced from the rotor front side to the rear side of the output shaft 58). When rotating, the base portion 50B moves to the side away from the index rotor 18.

  As shown in FIGS. 5 to 8, the cord pushing mechanism 22 includes a plurality of cord pushing members (pushing members) 61 disposed along the longitudinal direction of the rotor insertion portion 50 </ b> C. Each cord extruding member 61 includes a cord holder (crimp bar, cord holding member) 62 extending in the rotor radial direction, and a plurality of hammers (crimp rod, crimp member) 64 disposed on the cord holder 62. Yes. Further, the cord pushing mechanism 22 includes an interlocking mechanism 66 (see FIG. 8) for interlocking the cord holder 62 and the hammer 64, the above-described slider 50, and the oscillating gear unit 52 (see FIG. 1). .

  The cord holder 62 and the hammer 64 are rods extending substantially horizontally and in the rotor radial direction in the central portion in the vertical direction in the index rotor 18, and the cord holder 62 is fixed on the rotor insertion portion 50C. The cord holder 62 is slidably supported along the axial direction.

  Further, a step portion 62A capable of holding the cord C is formed at the tip end portion (the end portion on the disk 12 side) of the cord holder 62. The cord holder 62 is a bar longer than the hammer 64. In the state where the hammer 64 is slid to the rear side of the rotor to the maximum, the stepped portion 62A is formed at the tip of the hammer 64 (the rotor front side). It protrudes from the end) to the front side of the rotor.

  Further, as shown in FIGS. 5 and 7A, when the slider 50 is retracted (in a state where the slider 50 is slid to the maximum on the rear side), the entire cord holder 62 and hammer 64 are accommodated in the index rotor 18. Is done. Further, as shown in FIGS. 6 and 7B, when the slider 50 moves forward (a state in which the slider 50 is slid to the maximum on the front side of the rotor), the tip ends of the cord holder 62 and the hammer 64 are arranged around the index rotor 18. Projecting from the portion 18A toward the board surface 12A.

  Here, the peripheral portion 18A of the index rotor 18 is formed with a plurality of holes 18C through which the respective cord holders 62 and hammers 64 can be inserted so as to be able to be inserted therethrough. The tips of the holder 62 and the hammer 64 protrude from the hole 18C toward the board surface 12A.

  Further, as shown in FIG. 8, the interlocking mechanism 66 extends on the rotor shaft direction, and is supported on the slider 68 supported by the rotor insertion portion 50 </ b> C so as to be slidable along the moving direction of the slider 50, and on each hammer 64. A plurality of L-shaped angles 70 (see FIGS. 5 and 6) arranged one by one, a link arm 72 connected to one longitudinal end of the slider 68, and a link arm 74 connected to the link arm 72 And.

  The slider 68 has a pair of side plates 68A disposed at both ends in the longitudinal direction and a pair of side plates 68A. The base plate 68B has a U-shaped cross section when viewed in the rotor axial direction (see FIGS. 5 and 6). It is comprised by. As shown in FIGS. 5 and 6, the base plate 68B is disposed substantially horizontally and opens downward.

  A pair of standing wall portions 68C provided at both ends in the width direction of the base plate 68B are opposed to the longitudinal direction of the rotor, and a plurality of spring plungers 76 are disposed on the standing wall portion 68C provided on the rotor rear side. Arranged along the axial direction. Each spring plunger 76 is superposed vertically with each hammer 64, and a spring portion 76A that can be elastically deformed (elastically expanded and contracted) in the moving direction of the hammer 64 protrudes forward of the rotor.

  The L-shaped angle 70 is fixed on the hammer 64, and the non-joining side portion 70A protrudes upward. The non-joint side portion 70A of the L-shaped angle is disposed between the pair of standing wall portions 68C of the base plate 68B so as to be in contact with the spring portion 76A of the spring plunger 76.

  Further, as shown in FIG. 8, one end of the link arm 72 in the longitudinal direction is rotatably connected to a rotation shaft 72A that is erected outward from the side plate 68A in the rotor axial direction, and the other end of the link arm 72 in the longitudinal direction. And one end portion in the longitudinal direction of the link arm 74 are coupled to each other by a rotary shaft 73 extending along the rotor axial direction so as to be relatively rotatable. Further, the other end portion in the longitudinal direction of the link arm 74 is rotatably supported by a rotating shaft 74A extending along the rotor axial direction on the lower rear side of the index rotor 18.

  Further, a long hole 74B extending along the longitudinal direction of the link arm 74 is formed on one end side in the longitudinal direction of the link arm 74, and the side plate 50E of the slider 50 is slidably fitted in the long hole 74B. A pin 78 is projected, and the slide arm 50 rotates the link arm 74 around the rotation shaft 74A, and the slider 68 slides.

  As shown in FIG. 5, when the slider 50 is retracted to the maximum, the spring portion 76A of the spring plunger 76 is separated from the non-joining side portion 70A of the L-shaped angle 70, and the rotor front side (disk 12 side) of the base plate 68B. ) Comes into contact with the non-joining side portion 70 </ b> A of the L-shaped angle 70.

  On the other hand, as shown in FIG. 6, when the slider 50 is advanced to the maximum, the spring portion 76A of the spring plunger 76 abuts against the non-joining side portion 70A in an elastically deformed state, and the standing plate on the front side of the rotor of the base plate 68B. The part 68C contacts the non-joining side part 70A.

  As shown in FIG. 1, the rotor rotation mechanism 80 includes a servo motor (driving means) 82, an index gear unit 84, a drive transmission unit 86 that transmits the output of the servo motor 82 to the index gear unit 84, and an index. And a drive transmission unit 88 that transmits the output of the gear unit 84 to the index rotor 18.

  The servo motor 82 is controlled by a control unit (not shown), and is rotated at a predetermined speed during manufacture of the cord reinforcement body 14. Further, the drive transmission unit 86 includes a pulley 90 fixed to the output shaft 82A of the servo motor 82, a pulley (not shown) fixed to the input shaft (not shown) of the index gear unit 84, and windings around these pulleys. And a timing belt 92 that is hung.

  The index gear unit 84 includes an index gear (not shown) and a gear box 94 that houses the index gear, and extends in the rotor axial direction by the driving force transmitted from the drive transmission unit 86. The first output shaft (not shown) is index-rotated, and the second output shaft 96 extending in the longitudinal direction of the rotor is continuously rotated at a constant speed.

  Here, the output from the second output shaft 96 is transmitted to the above-described oscillating gear by the drive transmission unit 102. The drive transmission unit 102 is wound around a pulley 104 fixed to the second output shaft 96, a pulley 108 fixed to an input shaft 106 extending in the longitudinal direction of the rotor of the oscillating gear, and the pulleys 104 and 108. A timing belt 110.

  The drive transmission unit 88 includes a pulley (not shown) fixed to the first output shaft, a pulley (not shown) disposed at the other axial end of the index rotor 18, and windings around these pulleys. A timing belt 98 is provided.

  Next, the operation in this embodiment will be described.

  At the time of manufacturing the cord reinforcing body 14, the servo motor 42 is driven, and the cord C is unwound from the reel and fed into the groove 44A. As shown in FIG. 4, when the tip of the cord C is sent to a predetermined position into the groove 44 by driving the servo motor 42 (when the cord C is fed for a predetermined length), the cutter 34 is operated, and the cord C is Cut to a predetermined length. At this time, when the slider 50 stands by at the last position, the groove 44A is held in a substantially horizontal direction (initial position). As a result, the cord C having a predetermined length is loaded into the groove 44A.

  The code C cut to a predetermined length is supplied to the index rotor 18 as will be described later. For this reason, after the supply time has elapsed (after the groove 44A has returned to the initial position), the code transport mechanism 32 is actuated again, and the supply of the code C and the cutting of the code C by the cutter 34 are performed.

  Further, as shown in FIG. 1, the servomotors 28 and 82 are continuously driven during the manufacture of the cord reinforcement body 14. By driving the servo motor 28, the disk 12 is index-rotated around the rotating shaft 26 extending in the front-rear direction of the rotor.

  The drive of the servo motor 82 is transmitted to the index gear by the drive transmission unit 86, and the index gear is rotated. As a result, the first output shaft extending in the rotor axis direction is index rotated, and the second output shaft 96 extending in the rotor front-rear direction is continuously rotated at a constant speed.

  The index rotation of the first output shaft is transmitted to the index rotor 18 via the drive transmission unit 88, and the index rotor 18 is index rotated. Further, the continuous rotation of the second output shaft 96 is transmitted to the oscillating gear via the drive transmission unit 102, and the oscillating gear is rotated.

  As a result, as shown in FIGS. 5 to 8, the slider 50 is slid in the front-rear direction of the rotor, the rotating portion 44 rotates (angular displacement), and the cord holder 62 and the hammer 64 move relative to the disk surface 12 </ b> A of the disk 12. Move forward and backward.

  The number of stops per rotation of the index rotor 18 is the same as the number of grooves 18B, and the feed pitch of the index rotor 18 is the same as the pitch of the grooves 18B. When the index rotor 18 stops, one groove 18B on the rotor rear side faces the upper surface 44A of the table 44 substantially horizontally, and one groove 18B on the rotor front side faces the disk surface 12A of the disk 12 substantially horizontally. To do.

  Here, the slider 50 is connected to the servo motor 82 via an oscillating gear, an index gear, or the like, and the index rotor 18 is connected to the servo motor 82 via an index gear or the like. The rotation of the rotor 18 is mechanically synchronized.

  At this time, the slider 50 stands by at the retracted position when the index rotor 18 rotates (see FIG. 5), and moves forward and backward when the index rotor 18 stops (see FIG. 6). When the slider 50 stands by at the retracted position, the rotating unit 44 stands by in an initial state with the groove 44A facing the rotor front side, and the cord holder 62 and the hammer 64 stand by within the index rotor 18. To do.

  Further, when the slider 50 moves forward, the rotating portion 44 rotates 90 ° from the initial position, so that the posture of the groove 44A is changed substantially vertically downward, and the groove 44A and the through groove 46 are arranged on a substantially vertical line. Therefore, the cord C falls into the groove 18B. The cord C dropped into the groove 18B is held in the groove 18B by the magnetic force of the magnet 19 embedded in the index rotor 18. Further, the advancement of the slider 50 causes the cord holder 62 and the hammer 64 to advance and cause the tip portion to protrude from the hole 18C toward the board surface 12A.

  As shown in FIG. 5, when the slider 50 stands by in the retracted position, the stepped portion 62 </ b> A provided at the tip end portion of the cord holder 62 is positioned on the front side of the rotor from the tip end portion of the hammer 64. . Then, as shown in FIG. 8, the link arm 74 is rotated forward by the forward movement of the slider 50, and the rotational force of the link arm 74 acts on the slider 68 via the link arm 72. Advance.

  When the slider 68 advances, the spring portion 76A of the spring plunger 76 comes into contact with the non-joining side portion 70A of the L-shaped angle 70 and pushes the hammer 64 forward of the rotor. Thereby, the hammer 64 moves relative to the cord holder 62 toward the rotor front side.

  Here, the rotation radius R1 of the rotary shaft 73 connecting the link arm 74 and the link arm 72 is larger than the rotation radius R2 of the long hole 74B formed in the link arm 74, and the rotation radius R1 is increased when the slider 50 moves forward. The advance amount of the shaft 73 is larger than the advance amount of the pin 78.

  Thereby, when the slider 50 moves forward, the advance amount of the slider 68 becomes larger than the advance amount of the slider 50, so that the advance amount of the hammer 64 by the advance of the slider 68 is the advance amount of the cord holder 62 by the advance of the slider 50. Bigger than.

  That is, when the slider 50 moves forward, the tip of the hammer 64 that is initially positioned on the rotor rear side with respect to the stepped portion 62A is displaced from the stepped portion 62A to the rotor front side in the middle. The stroke between the cord holder 62 and the hammer 64 is such that the tip of the hammer 64 overlaps the stepped portion 62A when the distance between the tip of the cord holder 62 and the board surface 12A is less than the diameter of the cord C. It is set to move.

  That is, when the slider 50 moves forward, first, the cord C is held by the step portion 62A while the cord holder 62 moves forward. When the distance between the cord holder 62 and the board surface 12A becomes so narrow that the cord C does not fall between them, the hammer 64 abuts against the cord C while moving forward, and pushes the cord C as it is to the board surface 12A.

  Thereafter, the slider 68 moves forward by a predetermined amount in a state where the spring portion 76A is elastically deformed (compressed), whereby the cord C is pressed against the board surface 12A by the hammer 64.

  On the other hand, the disk 12A is rotated around the rotating shaft 26 extending in the longitudinal direction of the rotor, and the portion of the disk surface 12A where the code C is not yet attached faces the code holder 62 and the hammer 64 substantially horizontally. Sequentially supplied to the position to perform.

  The supply process of the code C to the groove 18B, the movement process of the code C by the rotation of the index rotor 18, the rotation process of the disk 12, and the extrusion process of the code C from the groove 18B to the disk surface 12 are repeatedly performed. Thus, a plurality of cords C are arranged along the circumferential direction on the board surface 12A, and a plurality of cords C are arranged along the circumferential direction of the annular board surface 12A. (See FIG. 2) is formed on the annular disk surface 12A.

  Here, the servo motors 28 and 82 are controlled so that the index rotation of the disk 12 and the index rotation of the index rotor 18 are synchronized. That is, the disk 12 is rotated by one pitch of the code C while the index rotor 18 is rotated by one pitch of the groove 18B. As a result, the cord reinforcement body 14 in which the cords C are arranged annularly at a desired pitch is formed on the board surface 12A.

  By transferring the cord reinforcement body 14 from the disk 12 to the sidewall portion (not shown) of the green tire, the cord reinforcement body 14 in which the cords C are annularly arranged at a desired pitch is disposed on the sidewall portion. be able to.

  Therefore, by adjusting the length of the cord C sequentially supplied to the peripheral portion 18A of the index rotor 18, adjusting the rotation speed of the index rotor 18 and the disk 12, adjusting the relative position of the index rotor 18 to the disk 12, etc. Various cord reinforcement bodies 14 having different widths, pitches of the cords C, and the like can be disposed, and various tires having different shapes can be handled. Moreover, the cord reinforcement body 14 can be arrange | positioned in the state which does not have the stress to the circumferential direction in the sidewall part of a green tire.

  Therefore, the production efficiency of the cord reinforcement body 14 disposed on the sidewall portion of the tire can be improved, the manufacturing accuracy of the cord reinforcement body 14 can be improved, and the uniformity of the sidewall portion can be improved. Further, it is possible to eliminate the need for large-scale equipment such as a calendar and a wisdom machine used for manufacturing the wire chafer.

  Further, the index rotor 18 is rotated about a rotation axis extending in a substantially horizontal direction above the rotation center of the disk 12. For this reason, as shown in FIG. 2, the cord C constituting the cord reinforcing body 14 is inclined in the circumferential direction with respect to the radial direction of the disk 12. Therefore, compared with the case where the cord C is disposed along the radial direction of the disk 12, the pitch difference of the cord C between the radially inner side and the radially outer side can be reduced, and the radially inner side and the diameter of the cord reinforcing body 14 can be reduced. The strength difference from the outside in the direction can be reduced.

  Further, by dropping the code C from the groove 44A of the rotating portion 44 into the groove 18B of the index rotor 18, the code C is supplied to the groove 18B, and the code C is pushed and moved into the groove 18B. By eliminating the need for the member, it is possible to supply the code C into the groove 44A by the code transport mechanism 32 immediately after the code C is dropped.

  Therefore, the cycle time of the operation of supplying the cord C into the groove 18B can be shortened, and the productivity of the cord reinforcing body 14 can be improved.

  Further, the cord C that has fallen into the groove 18B from the groove 44A is attracted to the groove 18B by the magnetic force of the magnet 19 embedded in the index rotor 18. Therefore, the cord C can be prevented from dropping from the index rotor 18 when the cord C is supplied to the groove 18B and when the index rotor 18 is rotated.

  Further, by synchronizing the pushing operation of the pushing member 61 and the turning operation of the rotating portion 44, the cycle time of a series of operations from supplying the code C into the groove 18B to adhering it to the board surface 12A can be shortened. .

  In addition, the cord transport mechanism 32 is configured to send the cord from the peripheral portion of the rotating portion 44 to the groove 44A that is recessed toward the axial center (rotation center) side. The falling direction of the cord C is regulated by the wall portion of the groove 44A. Therefore, the accuracy of the operation of supplying the cord C into the groove 18B can be improved.

  Further, the index rotation of the index rotor 18 and the advance and retreat of the cord holder 62 and the hammer 64 are mechanically synchronized, and when the index rotor 18 is stopped, the code holder 62 and the hammer 64 advance and retreat, and the retreat operation ends. After that, the index rotor 18 is configured to perform index rotation.

  Thereby, no matter how high the rotational speed of the index rotor 18 and the operating speed of the cord holder 62 and the hammer 64 can be prevented, the mechanical interference between the index rotor 18 and the cord holder 62 and the hammer 64 can be prevented. The productivity of the reinforcing body 14 can be improved.

  Further, the slider 68 is configured to advance by a predetermined amount in a state where the spring portion 76A is elastically deformed (compressed), whereby the cord C is pressed against the board surface 12A by the hammer 64. Is automatically adjusted according to the position of the board surface 12A, so that the non-uniformity of the crimping force can be improved even if the object to be crimped has irregularities, and the non-uniformity of the adhesion state of the code C on the board surface 12A in this case can be improved. Can improve.

  Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the structure similar to 1st Embodiment, and description is abbreviate | omitted.

  As shown in FIGS. 9 and 10, in the cord delivery mechanism 200, the rotating portion 44 and the bearing portion 46 are disposed on the rear side of the index rotor 18 and are provided close to the peripheral portion 18 </ b> A of the index rotor 18. The groove 44A formed in the rotating part 44 is vertically upward (see FIG. 9) in a state where the slider 50 (see FIG. 1) is located at the highest position (see FIG. 9), and the opening is formed in the state where the slider 50 is located in the foremost position. It becomes substantially horizontal toward the rotor front side.

  Here, the magnetic force of the magnet 19 embedded in the index rotor 18 is set large enough to attract the cord C loaded in the groove 44A.

  Next, the operation in this embodiment will be described.

  The code C is unwound from the reel by the code transport mechanism 32 (see FIG. 1), fed into the groove 44A for a predetermined length, and cut into a predetermined length by the cutter 34 (see FIG. 4). At this time, when the slider 50 stands by at the rearmost position, the groove 44A is held substantially vertically upward (initial position).

  Then, when the slider 50 moves forward to the foremost position, the rotating portion 44 rotates 90 ° from the initial position. As a result, the posture of the groove 44A is changed to a substantially horizontal state facing the front side of the rotor, and the cord C faces the groove 18B and moves to the groove 18B by the magnetic force of the magnet 19. The cord C moved into the groove 18B is held in the groove 18B by the magnetic force of the magnet 19.

  As a result, as in the first embodiment, a member for pushing and moving the cord C into the groove 18B becomes unnecessary, so that the cord C is supplied into the groove 44A by the cord transport mechanism 32 immediately after the cord C is dropped. Can be done.

  Therefore, the cycle time of the operation of supplying the cord C into the groove 18B can be shortened, and the productivity of the cord reinforcing body 14 can be improved.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It is clear to the contractor. For example, in this embodiment, the cord reinforcement body 14 is formed on the disk 12 by the cord reinforcement body manufacturing apparatus 10 and then the cord reinforcement body 14 is transferred from the disk 12 to the sidewall portion. The cord reinforcement 14 may be directly formed on the sidewall portion by the device 10.

  Further, in the present embodiment, by rotating the rotating portion 44, the cord C is held by the groove 44A and dropped from the groove 44A. As an operation of the delivery member that holds or drops the cord C, It is not limited to the rotating operation, and other operations such as a swinging operation can be applied.

  Moreover, in this embodiment, although the cord reinforcement body 14 was formed in the sidewall part, you may form it in other cyclic | annular reinforcement object parts, such as a tire peripheral part. In the present embodiment, the cord C is crimped to the board surface 12A by the hammer 64. However, the crimping is not essential. For example, the cord C can be dropped on the board surface 12A by its own weight and attached. .

It is a perspective view which shows the cord reinforcement body manufacturing apparatus which concerns on 1st Embodiment of this invention. It is an enlarged plan view which shows the cord reinforcement manufactured by the cord reinforcement manufacturing apparatus which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the index rotor with which the cord reinforcement manufacturing apparatus which concerns on 1st Embodiment of this invention was equipped. It is a perspective view which shows the cord supply part with which the cord reinforcement body manufacturing apparatus which concerns on 1st Embodiment of this invention was equipped. It is a sectional side view which shows the peripheral part of the index rotor with which the cord reinforcement body manufacturing apparatus which concerns on 1st Embodiment of this invention was equipped. It is a sectional side view which shows the peripheral part of the index rotor with which the cord reinforcement body manufacturing apparatus which concerns on 1st Embodiment of this invention was equipped. (A), (B) is a top view which shows the peripheral part of the index rotor with which the cord reinforcement body manufacturing apparatus which concerns on 1st Embodiment of this invention was equipped. It is a side view which shows the peripheral part of the index rotor with which the cord reinforcement body manufacturing apparatus which concerns on 1st Embodiment of this invention was equipped. It is a sectional side view which shows the peripheral part of the index rotor with which the cord reinforcement body manufacturing apparatus which concerns on 2nd Embodiment of this invention was equipped. It is a sectional side view which shows the peripheral part of the index rotor with which the cord reinforcement body manufacturing apparatus which concerns on 2nd Embodiment of this invention was equipped.

Explanation of symbols

10 Cord reinforcement manufacturing apparatus 12A Board surface (Cord adherence part)
14 Cord reinforcement 16 Disk rotating mechanism (Cord adherent rotating means)
18 Index rotor (rotary body)
18A circumference 19 magnet 32 code transport mechanism (code transport means)
34 Cutter (Cord cutting means)
44 Rotating part (delivery member, holding member)
44A groove 61 cord extruding member (extruding member)
C code

Claims (9)

A rotating body that rotates around an axis while holding a cord at the periphery;
A cord-attached portion rotating means for rotating an annular cord-attached portion around an axis with a part thereof facing the peripheral portion of the rotating body;
An extruding member that can be moved in and out of the peripheral portion of the rotating body, and pushes the cord from the peripheral portion of the rotating body to the cord attaching portion;
Code conveying means for sending a code along the periphery of the rotating body to the upper side of the rotating body;
A cord cutting means for cutting the code sent by the cord conveying means into a predetermined length;
A delivery member that holds the cord sent by the cord conveying means and drops the cord cut by the cord cutting means to the peripheral portion of the rotating body;
A cord reinforcing body manufacturing apparatus comprising:   The cord reinforcing body manufacturing apparatus according to claim 1, wherein the rotating body is provided with a magnet that attracts the cord to a peripheral portion of the rotating body by a magnetic force.   The cord reinforcing body manufacturing apparatus according to claim 1 or 2, wherein an extruding operation of the extruding member and a delivering operation of the delivery member are synchronized.   The delivery member is provided with a groove portion into which a cord is fed by the cord conveying means, and the delivery member rotates to drop the cord from the groove portion with the groove portion facing downward. The cord reinforcing body manufacturing apparatus according to any one of claims 1 to 3. A rotating body that rotates around an axis while holding a cord at the periphery;
A cord-attached portion rotating means for rotating an annular cord-attached portion around an axis with a part thereof facing the peripheral portion of the rotating body;
An extruding member that can be moved in and out of the peripheral portion of the rotating body, and pushes the cord from the peripheral portion of the rotating body to the cord attaching portion;
Code conveying means for sending a code along the periphery of the rotating body;
A holding member for holding a cord sent by the cord carrying means;
A cord cutting means for cutting the code sent by the cord conveying means into a predetermined length;
A magnet that is provided on the rotating body and moves the cord cut by the cord cutting means from the holding member to the periphery of the rotating body by a magnetic force, and attracts the code to the periphery;
A cord reinforcing body manufacturing apparatus comprising: A cord conveying and cutting step of feeding the cord along the peripheral portion of the rotating body to the upper side of the rotating body in a state of being held by the delivery member, and cutting to a predetermined length;
A cord delivery step for dropping the cut cord from the delivery member to the periphery of the rotating body;
A cord moving step of moving the cord to a position opposed to the annular cord attaching portion by rotating the rotating body around an axis;
A cord extruding step of extruding a cord from the peripheral portion of the rotating body to the cord adhering portion by an extruding member capable of moving in and out of the peripheral portion of the rotating body;
A cord reinforcing body manufacturing method, wherein a cord reinforcing body composed of a plurality of cords is formed on the cord attaching section by repeatedly performing the cord attaching section while rotating the cord attaching section about an axis.   The cord reinforcing body manufacturing method according to claim 6, wherein the cord is held on a peripheral portion of the rotating body by a magnetic force.   The cord reinforcing body manufacturing method according to claim 6 or 7, wherein an extruding operation of the extruding member and a delivering operation of the delivery member are synchronized. A cord carrying cutting step of feeding the cord along the peripheral portion of the rotating body to the upper side of the rotating body in a state of being held by the holding member, and cutting it to a predetermined length;
A cord delivery step of moving the cut cord from the holding member to the periphery of the rotating body by magnetic force;
A cord moving step of moving the cord to a position opposed to the annular cord attaching portion by rotating the rotating body around an axis;
A cord extruding step of extruding a cord from the peripheral portion of the rotating body to the cord adhering portion by an extruding member capable of moving in and out of the peripheral portion of the rotating body;
A cord reinforcing body manufacturing method, wherein a cord reinforcing body composed of a plurality of cords is formed on the cord attaching section by repeatedly performing the cord attaching section while rotating the cord attaching section about an axis.

Images