JP6372289B2 - Method and apparatus for conveying bead member - Google Patents

Description

  The present invention relates to a method and an apparatus for conveying a bead member, and more specifically, a bead member excellent in productivity that can be quickly conveyed to another process while preventing inadvertent deformation of the molded bead member. The present invention relates to a transport method and apparatus.

  Various members having unvulcanized rubber are used in the tire manufacturing process. One of these members is a bead member. The bead member is formed by joining a bead filler having a substantially triangular cross section made of unvulcanized rubber to the outer peripheral side of an annular bead ring. In a bead member having a large radial length of the bead filler, the bead filler made of unvulcanized rubber is more easily deformed. If a green tire is molded using a bead filler that has been inadvertently deformed, it may adversely affect the molding failure and the quality of the vulcanized pneumatic tire. Therefore, it is important to secure a bead member that is free from inadvertent deformation of the bead filler.

  Therefore, conventionally, a bead separator is used in the manufacturing process in order to maintain the bead member in a predetermined shape (see, for example, Patent Documents 1 and 2). The bead separator has a cylindrical shape, and a bead member is placed on the outer surface thereof. In the manufacturing process of the bead member, the molded bead member is moved and placed on the outer surface of the bead separator. Therefore, inadvertent deformation may occur in the bead member during the movement. Further, since the bead member is easily deformed when it is moved quickly, it is difficult to shorten the time required for the process, which has been an obstacle to improving the productivity.

  On the other hand, when the suspended bead separator is moved toward the molded bead member, there is a problem that the bead separator swings. Therefore, it is difficult to increase the moving speed of the bead separator in order to place the bead member at a predetermined position on the outer surface of the bead separator or to prevent interference with surrounding equipment. Therefore, a device was required to improve productivity.

JP 2005-161877 A JP 2007-283651 A

  An object of the present invention is to provide a bead member transport method and apparatus excellent in productivity that can be quickly transported to another process while preventing inadvertent deformation of the molded bead member.

  In order to achieve the above object, according to the method for conveying a bead member of the present invention, a bead member formed into an annular shape is formed by joining a belt-shaped bead filler to the outer peripheral surface of the bead ring, and a holding bar is inserted into the circular opening of the bead member. And then suspended in a vertically placed state at a standby position, transported a cylindrical bead separator suspended in a vertically placed state toward the bead member, and placed the bead member on the bead separator, and then the bead member. The bead member is transported integrally with the bead separator in a separate process, wherein the bead separator has a circular opening centered on the same axis at both ends in the cylinder axis direction, and is located at the other end of the circular opening at one end. A circular opening is formed to have a large diameter, and includes an inclined outer surface and an inclined inner surface that are inclined in a direction in which the diameter increases from one end to the other end. The inclined outer surface is arranged facing the bead member side and suspended in a vertically placed state, and each time the bead member is suspended in a vertically placed state at the standby position, the bead separator is held by a holding tool, The holding tool and the presser are maintained while maintaining the bead separator in a vertically placed state along the presser bar by bringing a presser bar disposed closer to the bead member than the holder into contact with the bead separator. It is conveyed toward the bead member together with the bar, and a circular opening at one end of the bead separator is inserted into the holding bar, and protrudes in the outer circumferential direction at a position closer to the front end side than the standby position of the bead member of the holding bar. The bead separator is brought into contact with the inclined inner surface of the bead separator and supported by the protrusion. The bead is suspended by being vertically placed and held adjacent to the bead member, and then at least one of the bead member and the bead separator is moved along the extending direction of the holding bar. A member is placed on the inclined outer surface, and the bead member is integrally conveyed to a separate process together with a bead separator.

  The bead member transport device of the present invention includes a holding means for suspending and holding a cylindrical bead separator on which a bead member formed by joining a bead filler to the outer peripheral surface of the bead ring is placed in a vertically placed state, Separator conveying means for conveying the bead separator held by the holding means to the bead member suspended and held at the standby position, and the bead member and the separator conveying means at the standby position. Suspension means for suspending the conveyed bead separator in a vertically placed state, and bead member conveying means for conveying the bead member together with the bead separator to a separate process after the bead member is placed on the bead separator; A bead member conveying device comprising: a bead separator having a coaxial center at both ends in a cylindrical axis direction; The circular opening at the other end is formed to have a larger diameter than the circular opening at one end, and includes an inclined outer surface and an inclined inner surface that are inclined in a direction in which the diameter increases from one end toward the other end, The means includes a holding tool that holds the bead separator with the inclined outer surface facing the bead member, and a pressing bar that is arranged closer to the bead member than the holding tool. By contacting the bead separator, the bead separator is maintained in a vertically placed state along the pressing bar, and the separator conveying means moves the holder and the pressing bar together toward the bead member. And the suspension means protrudes in the outer circumferential direction at a position closer to the tip than the standby position of the holding bar and the bead member of the holding bar. A protruding portion, and the holding bar is inserted into the bead member to suspend the bead member in a vertically placed state, and is inserted through a circular opening at one end of the bead separator, and the protruding portion is a bead separator. The bead separator is suspended in a vertically placed state by being in contact with the inclined inner surface and supported by the protruding portion, and is arranged adjacent to the bead member and held.

  According to the present invention, the cylindrical bead separator suspended in the vertical position is transported toward the bead member suspended in the vertical position at the standby position, and after placing the bead member on the bead separator, Since this bead member is integrally conveyed to a separate process together with the bead separator, the bead member is not substantially moved independently, which is advantageous in preventing inadvertent deformation of the bead filler. In addition, the bead separator suspended in a vertically placed state is held by a holding tool, and a pressing bar disposed on the bead member side with respect to the holding tool is brought into contact with the bead separator to thereby remove the bead separator. The bead separator is prevented from being shaken because it is conveyed toward the bead member at the standby position together with the holding tool and the pressing bar while maintaining the vertical state along the pressing bar. In addition, the protruding portion that protrudes in the outer circumferential direction at a position closer to the distal end side than the standby position of the bead member of the holding bar is brought into contact with the inclined inner surface of the bead separator and is supported by the protruding portion to vertically support the bead separator. It can be held stably by being suspended in a standing state and adjacent to the bead member at the standby position. Therefore, the bead separator can be quickly moved and the bead member can be accurately placed at a predetermined position. Moreover, since the bead separator to be moved has a posture in which the bead separator is stably suspended in a vertically placed state, the problem of interference with peripheral equipment can be avoided.

  In addition, a large number of the bead separators are placed in the vertically placed state with the inclined outer surface facing the bead member side, and each time the bead member is suspended in the vertically placed state at the standby position, The bead separator is conveyed toward the bead member at the standby position. Therefore, the molded bead member can be quickly and integrally transferred to a separate process together with the bead separator.

It is explanatory drawing which illustrates the conveyance apparatus of the bead member of this invention by a side view. It is explanatory drawing which illustrates the suspending means of FIG. 1 by a side view. It is explanatory drawing which illustrates the suspension means of FIG. 2 after a bead separator was conveyed by side view. It is explanatory drawing which expands a part of FIG. 3 and illustrates it by sectional view. It is explanatory drawing which illustrates the principal part of a suspension means by A arrow view of FIG. It is explanatory drawing which illustrates the holding | maintenance means and separator conveyance means of FIG. 1 by a side view. It is explanatory drawing which illustrates a holding means and a separator conveyance means by B arrow view of FIG. It is explanatory drawing which shows the modification of the pressing bar of FIG. It is explanatory drawing which illustrates the state which mounted the bead member in the inclined outer surface of a bead separator by a side view. It is explanatory drawing which illustrates the state which hold | maintained the bead separator using the holding means without a pressing bar in a side view.

  Hereinafter, a method and an apparatus for conveying a bead member of the present invention will be specifically described based on an embodiment shown in the drawings.

  A bead member conveying apparatus 1 (hereinafter referred to as a conveying apparatus 1) according to the present invention illustrated in FIG. 1 places a molded bead member 13 on a bead separator 12 and conveys the bead member 13 together with the bead separator 12 to another process. The bead member 13 is an annular body formed of a bead ring 13a and a bead filler 13b made of unvulcanized rubber joined to the outer peripheral surface of the bead ring 13a. The bead member 13 is formed by joining a belt-shaped bead filler 13b having a substantially triangular cross section to the outer peripheral surface of an annular bead ring 13a.

  The bead separator 12 has a cylindrical shape, and has circular openings 12a and 12b centered on the same axis at both ends in the cylinder axis direction. The circular opening 12b at the other end is formed to have a larger diameter than the circular opening 12a at one end, and includes an inclined outer surface 12c and an inclined inner surface 12d that are inclined in a direction in which the diameter increases from one end toward the other end.

  The transport device 1 includes a holder 3 that suspends and holds the bead separator 12 in a vertically placed state, and a horizontal expansion and contraction that transports the bead separator 12 held by the holder 3 toward the standby position WP of the bead member 13. The rod 5, the suspension means 6 for suspending the bead member 13 and the conveyed bead separator 12 in the stand-by position WP, and the bead member conveyance for conveying the bead member 13 together with the bead separator 12 in a separate process. Means 11 are provided.

  As illustrated in FIG. 2, the bead member 13 is suspended and held in a vertically placed state at a predetermined standby position WP by the suspension means 6 installed on the suspension frame 7. The suspending means 6 includes, for example, a holding bar 8 that is inserted through the bead member 13 and a protruding portion 9 that protrudes in the outer peripheral direction at a position closer to the distal end than the standby position WP set in the holding bar 8. In this embodiment, the holding bar 8 is further provided with a protrusion moving protrusion 10 that can protrude and move in the outer peripheral direction at a position on the rear end side of the protrusion 9 and at a position on the front end side of the standby position WP. Yes. That is, the moving protrusion 10 is provided between the protrusion 9 and the standby position WP.

  3 to 5, the holding bar 8 is inserted through a circular opening 12a at one end of the bead separator 12 conveyed by the horizontal telescopic rod 5 so that the protruding portion 9 contacts the inclined inner surface 12d. It has become. By supporting the inclined inner surface 12d by the protruding portion 9, the bead separator 12 is suspended in a vertically placed state and is disposed adjacent to the bead member 13 and held.

  The protruding portion 9 has, for example, a triangular cross section when viewed from the front. One or a plurality of protrusions 9 can be provided. In the case of using a single protrusion 9, it is preferable that the protrusion 9 be disposed at the center in the width direction of the holding bar 8 as viewed from the front (A arrow in FIG. 3). In the case where a plurality of protrusions 9 are provided, it is preferable that the protrusions 9 are arranged at positions symmetrical with respect to the center in the width direction of the holding bar 8 in front view. The protrusions 9 can be provided so as to be movable in the width direction of the holding bar 8 so that the interval between the protrusions 9 can be made variable.

  As illustrated in FIGS. 6 to 7, in this embodiment, the holder 3 includes a suction pad 3 a attached to an extendable rod 3 b installed on the frame 2 and a presser bar 4. The telescopic rod 3b is moved up and down by a fluid pressure cylinder or the like. The holding tool 3 is not limited to this, and any holding means that suspends and holds the bead separator 12 in a vertically placed state may be used, and various holding tools and the like can be used.

  The suction pad 3a serving as the tip of the holder 3 is configured to be able to change the direction. And it is preferable to make it the structure which makes the direction of the front-end | tip part (suction pad 3) of the holder 3 follow the inclination outer surface 12c, and hold | maintains the upper end part of the inclination outer surface 12c with the holder 3. FIG. Thereby, it becomes easy to hold | maintain various bead separators 12 from which the inclination | tilt angle of the inclination outer surface 12c differs more reliably.

  The holder 3 can be singular or plural as in this embodiment. In the case of using a single holder 3, it is preferable to arrange the holder 3 at the center in the width direction of the bead separator 12 as viewed from the front (see the arrow B in FIG. 6). In the case where a plurality of holders 3 are used, it is preferable that the holders 3 are arranged at positions symmetrical with respect to the center in the width direction of the bead separator 12 in a front view.

  In this embodiment, two pressing bars 4 extending in the vertical direction are arranged side by side with a space therebetween. An upper end portion of the presser bar 4 is connected to a horizontal telescopic rod 5 and is movable in the horizontal direction. The holding bar 4 is disposed closer to the bead member 13 in the standby position WP than the holder 3. The presser bar 4 is brought into contact with one end of the bead separator 12 to maintain the bead separator 12 in a vertically placed state along the presser bar 4. In this embodiment, as illustrated in FIG. 7, the presser bar 4 is in contact with and presses four places of the bead separator 12.

  The presser bar 4 is not only configured to move up and down and contact the bead separator 12 at one end, but can also be configured to move left and right (lateral direction) and contact the bead separator 12 at one end. it can.

  The presser bar 4 is not limited to a plurality of bars, but may be a single one as exemplified in FIG. The pressing bar 4 illustrated in FIG. 8 has an L shape and is pressed against three locations of the bead separator 12.

  The horizontal telescopic rod 5 is installed on the frame 2 and is advanced and retracted in the horizontal direction by a fluid pressure cylinder or the like. The separator conveying means is not limited to the horizontal telescopic rod 5 and may be any moving mechanism that moves the bead separator 12 and the pressing bar 4 held by the holder 3 together toward the bead member 13 at the standby position WP.

  The bead member conveying means 11 may be any device that can integrally convey the bead member 13 together with the bead separator 12 to another process. For example, a fluid pressure cylinder, a conveyance carriage, and other various known conveyance means can be used.

  Next, a method of placing the bead member 13 on the bead separator 12 using this transport device 1 and transporting it to the separate process together with the bead separator 12 will be described.

  First, the bead members 13 are sequentially formed in a ring shape while joining the belt-shaped bead filler 13b to the outer peripheral surface of the bead ring 13a. In the suspension means 6, as illustrated in FIGS. 1 and 2, the formed bead member 13 is suspended in a vertically placed state at the standby position WP by inserting the holding bar 8 through the circular opening 13c.

  A large number of bead separators 12 are arranged on the frame 2 arranged opposite to the suspending means 6 with the inclined outer surface 12c facing the bead member 13 and suspended in a vertically placed state. Then, each time one bead member 13 is suspended vertically in the standby position WP, one bead separator 12 is conveyed toward the bead member 13 at the standby position WP.

  At that time, as illustrated in FIGS. 6 to 7, the holder 3 is moved downward, and the upper end portion of the inclined outer surface 12 c of the bead separator 12 is sucked and held by the suction pad 3 a. Further, the holding bar 4 is disposed closer to the bead member 13 than the holder 3 (suction pad 3a) and is brought into contact with the bead separator 12. Thereby, the bead separator 12 is maintained in the vertically placed state along the presser bar 4. In this state, the horizontal telescopic rod 5 is extended, and the bead separator 12 is conveyed toward the bead member 13 together with the holder 3 and the pressing bar 4.

  As illustrated in FIG. 10, when the holder 3 that does not include the presser bar 4 is used, the bead separator 12 is held in a state of being rotated upward about the suction pad 3 a. Further, in this case, the bead separator 12 held by the suction pad 3a is not stable, so that it is easily shaken during movement. Therefore, the bead separator 12 held by the holder 3 is liable to interfere with peripheral equipment such as the bead member forming device and the hanging means 6 disposed opposite to the frame 2 and is disadvantageous for quick movement. Become.

  On the other hand, in the present invention, as illustrated in FIG. 6, the upper end portion of the inclined outer surface 12 c of the bead separator 12 suspended in the vertical position is held by the holder 3, and the bead separator 12 is vertically moved along the presser bar 4. Keep in place. Therefore, the bead separator 12 is not held in a state in which it is rotated upward about the suction pad 3a as indicated by a broken line.

  In this way, the bead separator 12 is transported toward the bead member 13 at the standby position WP together with the holder 3 and the presser bar 4 while maintaining the bead separator 12 in the vertically placed state. Along with this, the bead separator 12 transported toward the standby position WP is less likely to interfere with peripheral equipment, and it is advantageous to move the bead separator 12 quickly.

  As illustrated in FIGS. 3 to 5, the conveyed bead separator 12 has a circular opening 12 a at one end thereof inserted into the holding bar 8, and a protruding portion 9 that protrudes from the holding bar 8 in the outer peripheral direction is formed into the bead separator 12. 12 in contact with the inclined inner surface 12d. By supporting the bead separator 12 by the protruding portion 9 brought into contact with the inclined inner surface 12d, the bead separator 12 is suspended in a vertically placed state and held adjacent to the bead member 13. In this way, the protruding portion 9 is brought into contact with the inclined inner surface 12d to support the bead separator 12 and suspended in a vertically placed state, so that it can be stably held. In order to stably hold the bead separator 12, the number of the protrusions 9 is more preferably two (two-point support).

  In this embodiment, the bead separator 12 is sandwiched between the projecting portion 9 and the projecting and moving projection 10 that has been projectingly moved. Therefore, the bead separator 12 can be suspended from the holding bar 8 more stably.

  Next, after the protruding movement protrusion 10 is retracted downward, at least one of the bead member 13 and the bead separator 12 is moved along the extending direction of the holding bar 8. For this movement, a pin or a cylinder rod that protrudes in the extending direction of the holding bar 8 may be used. Since this moving distance is extremely short (about several centimeters), there is substantially no problem that the moving bead member 13 is deformed or the bead separator 12 is shaken.

  By moving at least one of the bead member 13 and the bead separator 12 along the extending direction of the holding bar 8, the bead member 13 is placed on the inclined outer surface 12c as illustrated in FIG. The bead filler 13b is gradually bent with time and placed along the inclined outer surface 12c. Therefore, inadvertent deformation of the bead filler 13b can be prevented over time.

  Subsequently, the bead separator 12 on which the bead member 13 is placed is integrally conveyed to another process by the bead member conveying means 11. In a separate process, the bead members 13 are used sequentially in the molding process or are stocked until they are used.

  As described above, in the present invention, after the bead separator 12 is conveyed toward the bead member 13 at the standby position WP and the bead member 13 is placed on the bead separator 12, the bead member 13 is integrated with the bead separator 12. Since it conveys to another process, the bead member 13 is not moved substantially independently. Therefore, even the bead member 13 having a large radial length of the bead filler 13b is advantageous in preventing inadvertent deformation of the bead filler 13b. Along with this, the yield of the bead member 13 is improved.

  In addition, the bead separator 12 can be suspended vertically by the protruding portion 9 and can be disposed adjacent to the bead member 13 at the standby position WP and stably held. Therefore, the bead separator 12 can be quickly moved to place the bead member 13 at a predetermined position with high accuracy. Moreover, each time the bead member 12 is suspended in the vertical position at the standby position WP, the bead separator 12 is conveyed toward the bead member 13 at the standby position WP. This is advantageous for quickly transporting to another process. That is, it can be said that the present invention greatly contributes to the improvement of tire productivity and is excellent in productivity.

DESCRIPTION OF SYMBOLS 1 Conveyance device 2 Frame 3 Holder (holding means)
3a Suction pad 3b Telescopic rod 4 Holding bar 5 Horizontal telescopic rod (Separator conveying means)
6 Suspension means 7 Suspension frame 8 Holding bar 9 Protruding portion 10 Protruding movement protrusion 11 Bead member conveying means 12 Bead separator 12a Circular opening 12b at one end Circular opening 12c at the other end Inclined outer surface 12d Inclined inner surface 13 Bead member 13a Bead ring 13b Bead filler 13c Circular opening

Claims (6)

A bead member formed in an annular shape while joining a belt-shaped bead filler to the outer peripheral surface of the bead ring is suspended in a vertical position at a standby position by inserting a holding bar through the circular opening of the bead member, A cylindrical bead separator suspended in a vertically placed state is transported, and the bead member is placed on the bead separator, and then the bead member is transported integrally with the bead separator to a separate process. A method,
The bead separator has a circular opening centered on the same axis at both ends in the cylinder axis direction, the circular opening at the other end is formed larger in diameter than the circular opening at one end, and the diameter increases from one end toward the other end. With an inclined outer surface and an inclined inner surface,
A large number of the bead separators are arranged in a vertically placed state with the inclined outer surface facing the bead member side, and each time the bead member is suspended in the vertically placed state at the standby position, the bead separator is The bead separator is held in a vertically placed state along the holding bar by holding the holding bar with the holding bar and a pressing bar arranged closer to the bead member than the holding tool. While being conveyed toward the bead member together with the holding tool and the holding bar, the circular opening at one end of the bead separator is inserted into the holding bar, and the holding bar has a front end side of the standby position of the bead member. The protrusion protruding in the outer peripheral direction at the position of the bead separator is brought into contact with the inclined inner surface of Holding the bead separator in a vertically placed state and holding it adjacent to the bead member, and then moving at least one of the bead member and the bead separator along the extending direction of the holding bar By this, the bead member is placed on the inclined outer surface, and the bead member is integrally conveyed to a separate process together with the bead separator.   The method for conveying a bead member according to claim 1, wherein an upper end portion of the inclined outer surface is held by the holder in a state in which a direction of a tip portion of the holder is changed to follow the inclined outer surface.   Protrusion moving projections that are movable in the outer circumferential direction are provided at positions closer to the rear end side than the projecting portions of the holding bar, and the bead separator is disposed between the projecting moving projections in the outer circumferential direction and the projecting portions. The method for conveying a bead member according to claim 1 or 2, wherein the bead member is held. A holding means for suspending and holding a cylindrical bead separator on which a bead member formed by joining a bead filler to the outer peripheral surface of the bead ring is placed vertically, and a bead separator held by the holding means. Separator separator for conveying toward the bead member suspended and held in the vertical position at the standby position, and the bead separator conveyed by the bead member and the separator conveyance means at the standby position in the vertical position A bead member transport device comprising: a suspension means for suspending; and a bead member transport means for transporting the bead member together with the bead separator to a separate process after the bead member is placed on the bead separator. And
The bead separator has a circular opening centered on the same axis at both ends in the cylinder axis direction, the circular opening at the other end is formed larger in diameter than the circular opening at one end, and the diameter increases from one end toward the other end. With an inclined outer surface and an inclined inner surface,
The holding means includes a holding tool that holds the bead separator having the inclined outer surface facing the bead member, and a pressing bar that is arranged closer to the bead member than the holding tool. The bead separator is maintained in a vertically placed state along the presser bar by contacting the bead separator.
The separator conveying means is a moving mechanism for moving the holder and the pressing bar together toward the bead member;
The suspending means includes a holding bar and a protruding portion that protrudes in an outer peripheral direction at a position closer to the distal end than the standby position of the bead member of the holding bar, and the holding bar is inserted into the bead member. The bead member is suspended in a vertically placed state, inserted into a circular opening at one end of the bead separator, and the protruding portion contacts the inclined inner surface of the bead separator and is supported by the protruding portion. A bead member transporting device, characterized in that the separator is suspended in a vertically placed state and is disposed adjacent to the bead member.   The direction of the front-end | tip part of the said holder is comprised so that a change is possible, The direction of this front-end | tip part was made to follow the said inclined outer surface, and it was set as the structure which hold | maintains the upper end part of the said inclined outer surface with a holder. The bead member conveying apparatus according to the description.   A protrusion-moving protrusion is provided at a position on the rear end side of the protrusion of the holding bar so as to protrude and move in the outer peripheral direction, and the bead is interposed between the protrusion-moving protrusion and the protrusion in a state of protruding in the outer peripheral direction. The bead member transport device according to claim 4 or 5, wherein the separator is held.

Images