JPH05301302A - Method and device for feeding tire bead - Google Patents

Abstract

PURPOSE:To shorten the working hours by carrying out simultaneously the feeding operation of a tire bead and the storing operation of a tire separator. CONSTITUTION:A first movable transfer device 5 for feeding a tire bead W onto the side of a molding machine not shown in the drawing through a guide 7 and a driving motor 4 and a second transfer device 8 for suction retaining a separator S and storing the same in the empty separator storing position 7 are disposed on a rail 2 of a horizontal shaft unit disposed horizontally on a base 1. A movable truck 6 provided with a bead stock section 9 on which a plurality of stages of tire beads W are piled up through the separator S and an empty separator storing position 7 is set on the base 1, and the first movable transfer device 5 moving back and forth between the bead stock section 9 of the truck 6 and a bead loader on the side of the molding machine which is not shown in the drawing, while the second transfer device 8 suction retains the empty separator S from the bead stock section 9, moves the separator to the empty separator storing position 7 and loads the same.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for supplying tire beads, and more specifically, to a tire bead from a bead stock portion on a truck formed by stacking a plurality of tire beads with filler through separators. A method for supplying tire beads in which the separator and the separator are automatically picked up and the tire beads are supplied to the bead loader on the side of the tire molding machine, and the empty separator is sequentially moved to the empty separator accommodating position on the truck and loaded. And its device.

[0002]

2. Description of the Related Art Conventionally, as a method for transferring an unvulcanized tire bead with a filler, which has been molded in advance according to the type of tire, to a tire molding machine, see, for example, JP-A-59-1.
As disclosed in Japanese Patent No. 15830, a ring-shaped unvulcanized filler-bearing tire bead is hung at a predetermined interval, and the hung tire bead is suction-held. By means of adsorbing one by one by means of picking up, moving to the molding machine side and transferring, in addition to this, stacking tire beads with filler in unvulcanized state, taking out one by one from the upper side and molding machine A method of moving to the side and transferring is known.

However, in such a conventional method,
It takes a lot of time and effort to get the above tire beads with filler stocked in a certain place.
In addition, the tire beads with filler are in an unvulcanized state,
As the height of the filler tends to increase as the performance of tires increases, there is a problem that the shape easily deforms and that the tire beads adhere to each other, and a cutter is provided to remove this adhesion state and take it out, etc. However, there were problems in quality such as bead deformation and scratches, and productivity deterioration due to troubles.

Therefore, recently, in order to prevent the tire beads from sticking to each other and to keep the shape of the filler, tire vulcanized tire beads with a filler are placed one by one on an umbrella-shaped separator. There is a method of placing them and stacking them in multiple stages.

[0005]

However, the work of taking out the tire bead with a filler placed on such a separator, discharging the separator and transferring the tire bead to the tire molding machine side is as follows. After all, since the workers intervene in the transfer work, it takes a lot of time and labor, the work efficiency is extremely poor, and there is a problem that the productivity cannot be improved.

The present invention was devised in view of the above conventional problems, and a first transfer device dedicated to supplying a tire bead to a bead loader on a tire molding machine side, and a truck for holding a separator by suction. By using the second transfer device for exclusive use of sequentially moving to and loading the empty separator accommodating position above, the tire bead supplying operation and the empty separator accommodating operation can be performed in parallel, thereby reducing the working time. It is an object of the present invention to provide a tire bead supply method and an apparatus thereof, which can be shortened and can be manufactured at low cost and with improved productivity and reliability.

[0007]

In order to achieve the above object, the present invention sandwiches a movable carriage having a bead stock portion in which a plurality of tire beads are stacked via a separator, and a bead is provided on one side thereof. From the upper side of the stock section,
A first transfer device that grips only the tire bead and supplies it to the bead loader on the molding machine side is arranged, and the separator from which the tire bead has been carried away is adsorbed and held on the other side part, and placed at the empty separator accommodating position on the carriage. A second transfer device for sequentially moving and loading is provided, and the first transfer device is
A vertical axis unit movably installed on a horizontal axis unit is provided with a transfer hand that can be swung via an ascendable and descendable arm, and the transfer hand holds a tire bead that is slidable in a radial direction. And a separator separating means for pressing the separator downward when the tire bead is held by the engagement holding means. The second transfer device is movably installed on the horizontal axis unit. The gist of the present invention is that a transfer hand is provided on the vertical axis unit via an ascendable / descendable arm, and the transfer hand is provided with suction holding means for holding at least the separator by suction.

[0008]

The present invention is constructed as described above, and by means of the transfer hand of the first transfer device, from the upper side of the bead stock section formed by sequentially stacking the tire beads on the movable carriage via the separator. Only the tire bead is gripped and lifted, moved to the bead loader on the molding machine side and supplied to the bead loader, and the separator from which the tire bead has been carried away is suction-held by the transfer hand of the second transfer device, and the empty space on the trolley is held. The tires are supplied to the bead loader by alternately moving the transfer hand of the first transfer device and the transfer hand of the second transfer device to sequentially load and load the separators to the separator accommodating position. Since it is loaded in the storage position, the tire bead supply operation and the empty separator storage operation can be performed in parallel.
This makes it possible to reduce the work time and
It is not necessary to equip two sets of the same device having a full function to transfer two beads for one tire, and it is sufficient to have one set of hands with separated functions, so that it is inexpensive and productive and reliable. Can be increased.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view of a tire bead transfer device at a bead delivery position according to the present invention,
As shown in FIG. 1, this tire bead transfer device is mounted on a rail 2 of a horizontal shaft unit horizontally installed on a base 1 via a guide 3 and a drive motor 4 to a bead loader on the molding machine side (not shown). A movable first transfer device 5 for supplying the tire beads W and a second transfer device 8 for adsorbing and holding the separator S and sequentially moving and loading the separator S to an empty separator accommodating position 7 on a carriage 6 described later are installed. ing.

On the base 1, a bead stock portion 9 in which a plurality of tire beads W are stacked via separators S
Trolley 6 having an empty separator accommodating position 7
Is installed, the first transfer device 5 reciprocates between the bead stock portion 9 of the carriage 6 and a bead loader on the molding machine side (not shown), and the second transfer device 8 moves from the bead stock portion 9 to the empty separator. S is suction-held, moved to the empty separator accommodating position 7, and stacked.

In the first transfer device 5 and the second transfer device 8, vertical shaft units 11a and 11b are installed on the rail 2 of the horizontal shaft unit via a guide 3 and a drive motor 4, On the guide rail 12 provided on the vertical shaft unit 11a of the first transfer device 5, as shown in FIG. 2 and FIG.
A guide member 13 is attached which moves up and down along the guide rail 12 by rotating a ball screw (not shown). A base end portion of an arm 14 is attached to the guide member 13 in a direction orthogonal to each other, and a transfer hand 15 of the tire bead W as shown in FIGS. 1 to 3 is attached to a tip end side of the arm 14. ing.

The transfer hand 15 has a hollow tube-shaped picker bracket 17 swingably attached to the arm 14 at the distal end side of the arm 14. As shown in FIGS. 2 and 3, the picker bracket 17 is swingably attached via a swing cylinder 18 attached to the arm 14, and a lift cylinder (air cylinder) 19 is attached to the picker bracket 17. It is installed parallel to the vertical axis unit 11a.

The rod 20 of the lifting cylinder 19 is
As shown in FIG. 4, the center block 22 is inserted into the picker bracket 17, and the center block 22 formed in a hollow cylindrical shape is swingably attached to the tip end thereof via a universal joint 21. As shown in FIGS. 2 and 3, the separator separating means 2 is provided on the outer peripheral surface of the center block 22.
3 is provided, and the separator separating means 23 is provided with an elastic member that presses the separator S downward at predetermined intervals in the circumferential direction and when the tire beads W are engaged and held at the tip to separate the tire beads W. A plurality of (at least three or more) separator separating arms 25 to which the caps 24 are attached are provided, and 26 denotes an elevating cylinder for elevating and lowering the caps 24.

A cam plate 27 is rotatably attached to the outer peripheral surface of the center block 22 on the front end side in parallel with the separator separating arm 25. The cam plate 27 is circumferentially spaced by a predetermined distance. In addition, a semicircular guide groove 28 is formed in the radial direction. A rotary actuator 29 is installed in the center block 22.
A disk-shaped picker base 30 is attached concentrically with the rotating shaft 29a and parallel to the cam plate 27.

In the circumferential direction on the picker base 30,
As shown in FIG. 2, FIG. 5, and FIG. 6, a plurality of slide rails 31 are arranged in a radial direction at predetermined intervals, and a plurality of (at least three or more) distance detection sensors 3 are provided.
2 are provided. The distance detection sensor 32 detects the distance between the picker base 30 and the separator S. Further, between the plurality of distance detection sensors 32,
A screw 33 as a stopper is attached so that its vertical position can be adjusted, and a rotatable ball 34 is attached to its tip.

A guide groove 28 of the cam plate 27 is provided on the slide rail 31 via a slide base 35.
A cam follower 36 that engages with is mounted on the slide base 35, and a plurality of engagement holding means 37 (engagement claws) that engage and hold the tire beads W are attached to the slide base 35.
The engagement holding means 37 holds and picks up the inner diameter portion of the tire bead W from the inside, and is arranged at least at three or more positions in the circumferential direction. At the tip of the rotary shaft 29a of the rotary actuator 29, the cam plate 27 is horizontally swiveled, and the engagement holding means 3 is provided.
A swivel arm 38 for moving the 7 in the radial direction along the slide rail 31 of the picker base 30 is attached.

Next, the second transfer device 8 has substantially the same structure as the transfer hand 15 of the tire bead W of the first transfer device 5 described above, and only the different structure is shown in FIGS. This will be described with reference to FIG. In addition, the same components are denoted by the same reference numerals and description thereof will be omitted. As shown in FIG. 7, the transfer hand 15a of the second transfer device 8 is a mechanism for swinging the picker bracket 17 described in FIG. 4, that is, a bracket for sucking and holding only the empty separator S. 16 and rocking cylinder 18 are not provided,
It has an L-shaped integral structure and is fixed to the arm 14. As described with reference to FIG. 4, the center block 22 includes the rod 2 of the cylinder 19 via the universal joint 21.
It is swingably connected to 0, and is surrounded by a predetermined interval in the circumferential direction around the center block 22.
Further, a plurality of (at least three or more) vacuum arms 42 each having a vacuum pad 41 (suction holding means) for suction-holding the separator S attached thereto are arranged, and the vacuum pads 41 are lifted and lowered via a lifting cylinder 43. Is configured to.

A picker base 44 is attached to the tip of the center block 22 in parallel with the vacuum arm 42, and the separator S is sucked and held by the vacuum pad 41 while being supported by the picker base 44, and the lifter cylinder 43 is used. It is lifted up and moved to the separator accommodating position 7 to be stacked. Thus, the second
The loading hand 15a of the transfer device 8 holds the tire bead W provided on the loading hand 15 of the first transfer device 5 in order to suck and hold only the empty separator S by engaging and holding means 37 (engagement means). Therefore, the cam plate 27 and the rotary actuator 29 are not provided.

The picker base 44 is provided with a distance detecting sensor 45 for the separator S as shown in FIGS. 8 and 9, and the distance detecting sensor 45 measures the distance between the picker base 44 and the separator S. Is to detect. Further, a screw 46 as a stopper is attached between the plurality of distance detection sensors 45 so that the vertical position can be adjusted, and a rotatable ball 47 is attached to the tip thereof.

Next, a method of transferring the tire beads W will be described. As shown in FIG. 1, a tire bead W integrally attached with a filler Wa is placed on an umbrella-shaped separator S, and a plurality of such separators S and tire beads W are stacked in a plurality of stages to form a truck. It is installed in the bead stock section 9 above 6. From this state, the transfer hand 15 of the first transfer device 5 is transferred from the upper side of the bead stock section 9.
When only the tire bead W is gripped and lifted by the above, the tire bead W is moved to a bead loader on the molding machine side (not shown) and supplied to the bead loader, as shown in FIG. The vertical shaft unit 11a is moved to a predetermined position via the guide 3, the drive motor 4 and the like. Then, the transfer hand 15 is lifted to a predetermined position of the bead stock portion 9 along the guide rail 12 via the lifting motor M and a ball screw (not shown).

At this time, the transfer hand 15 is swung by the swing cylinder 18 so that the transfer hand 15 is rotated as shown in FIG.
As shown in 0, the tire bead W located on the upper side of the bead stock portion 9 is substantially parallel to the tire bead W. At the same time, by projecting the rod of the elevating cylinder 19, the transfer hand 15 is suspended by the universal joint, and can swing in any direction. From this state, the elevating motor M is activated to move the guide member 13 to a preset position at high speed, and the position is switched to low speed to descend. And the above-mentioned state is picker base 30
After the distances between the picker base 30 and the separator S are detected by the plurality of distance detection sensors 32 provided in the above, it is confirmed that the predetermined position has been reached, and then the lowering movement by the lifting motor M is stopped. Next, the upper surface of the separator S is pressed by the caps 24 of the plurality of separator separating means 23 attached to the separator separating arm 25 of the transfer hand 15, the inside diameter of the bead to be described later is gripped, and then the tire bead W is attached. Tire bead W when picking up
Even when the separator S is in close contact with the separator S, the separator S is reliably separated.

In this state, when the rotary actuator 29 provided in the center block 22 is driven to rotate so that the cam plate 27 is horizontally swung via the swivel arm 38, the engagement holding means 37 causes the cam plate 2 to move.
The tire bead W is radially advanced along the guide groove 28 of No. 7 and holds the inner diameter side of the tire bead W. First as above
When the tire bead W is lifted and transferred by the transfer hand 15 of the transfer device 5, the transfer hand 15 is moved along the guide rail 12 via a lifting motor M and a ball screw (not shown). After raising the bead stock portion 9 to a predetermined position and retracting the rod of the elevating cylinder 19, the transfer hand 15 is fixed by bringing the upper surface of the center block 22 into contact with the lower end surface of the picker bracket 17, and thereafter, as shown in FIG. After pivoting through the swing cylinder 18 as shown in FIG. 2, the vertical axis unit 11a, which is placed on the rail 2 of the horizontal axis unit, is moved to a position indicated by an imaginary line through the guide 3, the drive motor 4, etc. It is moved and transferred to a bead loader on the tire molding machine side (not shown).

Next, after the tire bead W located on the upper stage side as described above is taken away, the vertical shaft unit 11b of the transfer hand 15a of the second transfer device 8 is passed through the guide 3, the drive motor 4, etc. Move it to the specified position. Then, the vacuum arm 42 of the transfer hand 15a is lifted to a predetermined position of the bead stock portion 9 along the guide rail 12 via the lifting motor M and a ball screw (not shown), and the rod of the lifting cylinder 19 is moved. The transfer hand 15a is projected so as to be swingable.

From this state, the elevating motor M is activated to move the guide member 13 to a preset position at high speed, and the position is switched to low speed to detect the distance detection sensor 4
5, while detecting the distance between the picker base 44 and the separator S, the picker base 44 is lowered to a predetermined position, and after confirming that the predetermined position is reached, the lowering movement by the lifting motor M is stopped. Then, as shown in FIG. 7, the vacuum pad 41 is lowered via the lifting cylinder 43, moved to the separator accommodating position 7, and stacked. At this time, it is preferable to retract the rod of the elevating cylinder 19 to lock the transfer hand 15a.

By repeating such operations, the tire beads W can be automatically supplied to the tire molding machine side without human intervention, and the separator S can be automatically discharged. Is. In the above embodiment, the transfer hand 15a of the second transfer device 8 is
Although it is simplified as compared with the transfer hand 15 of the first transfer device 5, it is also possible to discharge and separate the separator S using the same transfer hand 15 of the first transfer device 5. It is possible.

[0026]

Since the present invention is configured as described above, the transfer of the first transfer device is carried out from the upper stage side of the bead stock portion which is formed by sequentially stacking tire beads on the movable carriage through the separator. While gripping and lifting only the tire bead by the hand, and moving to the bead loader on the molding machine side to supply to the bead loader, the separator from which the tire bead has been carried away is suction-held by the transfer hand of the second transfer device, The tires are supplied to the bead loader by alternately moving the transfer hand of the first transfer device and the transfer hand of the second transfer device by moving the transfer hand to the empty separator accommodating position on the trolley in sequence and loading the separator. Since it is loaded in the empty separator accommodating position, it is possible to perform the tire bead supplying operation and the empty separator accommodating operation in parallel. Together can be shortened work time, the effect of that can enhance the low cost production and reliability.

Further, in the embodiment of the present invention, the bead stock part and the separator accommodating position are arranged in one dolly, but the dolly having two bead stock parts and the dolly having two separator accommodating positions are connected in series. Even when installed, similar effects can be obtained without changing the basic stroke of the present invention only by changing the moving stroke of the transfer hand.

[Brief description of drawings]

FIG. 1 is a front view of a tire bead supply device embodying the present invention.

FIG. 2 is a front view of a transfer hand of the first transfer device embodying the present invention.

FIG. 3 is a plan view of a transfer hand of the first transfer device.

FIG. 4 is a partially enlarged cross-sectional view showing a swing mechanism of a center block of a transfer hand.

FIG. 5 is a partial cross-sectional view of the picker base of the first transfer device to which the distance detection sensor is attached.

FIG. 6 is a cross-sectional view of a stopper portion of the first transfer device.

FIG. 7 is a front view of a transfer hand of the second transfer device embodying the present invention.

FIG. 8 is a partial sectional view of a picker base to which a distance detection sensor of a second transfer device embodying the present invention is attached.

FIG. 9 is a cross-sectional view of a stopper portion of the second transfer device.

FIG. 10 is an explanatory diagram showing an operating state of a transfer hand of the first transfer device.

[Explanation of symbols]

5 1st transfer device 6 Cart 7 Separator accommodating position 8 2nd transfer device 9 Bead stock part 11a, 11b Vertical axis unit 14 Arm 15a, 15b Loading hand 22 Center block 23 Separator separation means 37 Engagement holding means 41 Vacuum pad (Suction holding means) W Tire bead S Separator

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B65G 59/02 2124-3F 61/00 2124-3F B65H 3/08 350 B 9148-3F A 9148- 3F (72) Inventor Yoshinori Miyamoto 1-1, Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard (72) Inventor Sadamasa Sato 1-1, Atsunoura-cho, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries, Ltd. Nagasaki Inside the shipyard (72) Inventor Jiro Agawa 1-1 1-1 Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard

Claims (2)

[Claims] 1. A tire bead only is gripped and lifted by a transfer hand of a first transfer device from an upper stage side of a bead stock part formed by sequentially stacking tire beads on a movable carriage via a separator, and molding. While moving to the bead loader on the machine side and supplying it to the bead loader, the separator from which the tire beads have been carried away is adsorbed and held by the transfer hand of the second transfer device, and sequentially moved to the empty separator accommodating position on the trolley for loading. , The transfer hand of the first transfer device and the transfer hand of the second transfer device are alternately operated to supply the tire beads to the bead loader, and the separator is loaded in the empty separator accommodating position. How to supply tire beads. 2. A movable carriage having a bead stock portion in which a plurality of tire beads are stacked via a separator is sandwiched, and only one tire bead is gripped on one side thereof from the upper stage side of the bead stock portion. A first transfer device for supplying the bead loader on the molding machine side is provided, and the separator from which the tire bead has been carried away is adsorbed and held on the other side, and is sequentially moved to an empty separator accommodating position on the carriage for loading. Two transfer devices are provided, and the first transfer device is provided with a vertical shaft unit movably installed on a horizontal shaft unit and a swingable transfer hand via an ascendable arm. The transfer hand includes an engagement holding means for holding a tire bead that is slidable in the radial direction, and a separator portion for pressing the separator downward when holding the tire bead by the engagement holding means. The second transfer device is provided with a transfer hand via a vertically movable arm on a vertical shaft unit movably installed on the horizontal shaft unit, and at least the transfer hand is provided. A tire bead transfer device comprising suction holding means for holding a separator by suction.