JPH08207168A - Assembling method of automobile tire - Google Patents

Abstract

PURPOSE: To eliminate occurrence of a peculiar way of winding or nonuniformity in the amount of contract of a strip-shaped member during the storage thereof, to do away with the remainder of the strip-shaped member after molding of one lot, to reduce the number of length-measuring cutting devices of the strip- shaped member to be provided, and to save a space for storage of the strip- shaped member. CONSTITUTION: Strip-shaped members L, C and W of two kinds or more are molded to be long respectively, cut in a prescribed length and put on pallets 20 separately. The pallets 20 bearing these strip-shaped members of different kinds respectively are put in one set for one automobile tire, stacked in order reverse to the one at the time of sticking the members together and conveyed to a place in the vicinity of a machine base of a tire molding machine. The pallets 20 in one set are taken out sequentially, beginning from the upper one, one end of the strip-shaped member on the pallet is brought into contact with the lower side of a molding drum of the tire molding machine and the molding drum is rotated while the pallet is moved in the longitudinal direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile tire assembling method.

[0002]

Bias tires among automobile tires are
An inner liner, a carcass ply, a breaker and a tread are attached in this order on a cylindrical forming drum, and the obtained cylindrical green tire is vulcanized while being deformed into a toroidal shape in a vulcanizer. Further, the radial tire has a cylindrical primary case formed by sequentially adhering an inner liner, a carcass ply and a sidewall on a forming drum of a primary molding machine, while a first belt, a first belt and a second belt are formed on a forming drum of a secondary molding machine. 2 belts and treads are attached in order to form a cylindrical belt with tread, and then the above primary case is attached to a shaping machine and deformed into a toroidal shape. It is manufactured by vulcanizing green tires.

Conventionally, in forming bias tires as well as in primary and secondary forming of radial tires, belt-shaped members other than treads, that is, inner liners, carcass plies, sidewalls, breakers, belts, etc. After manufacturing in a long strip shape, it is wound on a roll by overlapping with a long liner, and this winding roll is carried to the rear of the servicer of the above molding machine and rotatably installed,
After that, the liner is separated while pulling out the above belt-shaped member from the roll, and only the long belt-shaped material is extended onto the conveyor belt of the servicer for each type of inner liner, carcass ply, etc., and the belt-shaped member is predetermined on this conveyor belt. Was cut and aligned, and the strip-shaped member having a predetermined length was supplied to the forming drum.

[0004]

Conventionally, since a long strip-shaped member is wound around a roll and stored, cut into a predetermined length on a servicer of a tire molding machine, and supplied to a molding drum,
The band-shaped member has a curl during storage, and the curvature of the curl attached to the band-shaped member is different between the beginning and end of winding, and the internal stress applied to the band-shaped member during storage becomes greater toward the winding start part of the core. Therefore, when the strip-shaped member is extended on the flat conveyor belt of the servicer and cut into a predetermined length, a measurement error occurs, and the amount of contraction of the strip-shaped member obtained by cutting becomes larger toward the winding start side. There was a problem.

Further, since the elongations that occur when several types of strip-shaped members belonging to one lot are stored differ from one member to another, when the molding of one lot is completed, the remaining amount of the above-mentioned strip-shaped members varies, which is the most important factor. The number of tires in one lot was limited by the short strip-shaped member, and the waste of the strip-shaped member was increased. Furthermore, while extruders for producing strip-shaped members have the production capacity of several tire forming machines, the servicer of the tire-forming machine has several conveyors for several types of belt-shaped members. A belt is arranged, and a belt-shaped member cutting device and an aligning device are required for each of the conveyor belts, which causes a problem that the device becomes large and complicated when automating the tire forming process, and the equipment cost increases.

In order to solve such a problem, the winding of the strip-shaped member is abolished, the strip-shaped member is cut into a predetermined length immediately after molding, and the strip-shaped member is placed on a pallet and stored in a straight line. Then, it was proposed to supply it to the molding drum of the tire molding machine (see Japanese Patent Application No. 6-73879). According to the invention of the prior application, it is possible to eliminate the curling of the belt-shaped member and the variation of the contraction amount of the belt-shaped member, reduce the remaining amount of the belt-shaped member after molding one lot, and eliminate the conventional servicer. It is possible to reduce the number of the length measuring and cutting devices for the belt-shaped member installed, simplify the device for guiding the tip of the belt-shaped member to the forming drum, save the equipment cost, and reduce the lot size.

However, in this case, a wide storage space is required depending on the storage method of the pallet on which the band-shaped member is placed or the empty pallet. For example, when the pallet having a plurality of types of belt-shaped members mounted in the vicinity of a tire molding machine such as a bias tire molding machine or a radial tire primary molding machine or a secondary molding machine is stacked and stored for each type of belt-shaped member,
A storage space corresponding to the type of strip member is required. Since a plurality of tire forming machines are installed for one set of the belt-shaped member manufacturing apparatus as described above, there arises a disadvantage that the storage space of the pallet on which the belt-shaped member is mounted becomes extremely large.

In carrying out the above-mentioned prior invention, the present invention provides
This makes it possible to reduce the storage space of pallets. That is, similarly to the above-mentioned prior invention, roll winding of the strip-shaped member is abolished, cut into a predetermined length immediately after forming the strip-shaped member, and the strip-shaped member is placed on a pallet and stored in a linearly extended state. After that, by supplying to the molding drum of the tire molding machine, it is possible to eliminate the curling of the belt-shaped member and the variation of the contraction amount of the belt-shaped member, and to eliminate the remaining amount of the belt-shaped member after molding one lot, Moreover, the conventional servicer was abolished to reduce the number of measuring and cutting devices for band-shaped members and the number of alignment devices installed, simplify the device for guiding the tip of the band-shaped members to the forming drum, save equipment costs, and reduce the lot size. In addition to making it possible, the storage space of the pallet on which the belt-shaped member is mounted is narrowed.

[0009]

That is, the present invention provides:
In a method for assembling an automobile tire, in which two or more belt-shaped members constituting an automobile tire are sequentially laminated one by one on a molding drum of a tire molding machine, each of the two or more belt-shaped members is formed into a long length, and a conveyor is used. The tire is cut into a predetermined length while being conveyed, and the belt-shaped members having the predetermined length are placed one by one on a pallet that has a flat surface and is stackable. 1 set as a set is stacked in the reverse order of the order of the above-mentioned laminating and conveyed to the vicinity of the base of the tire building machine,
Take out the set of pallets in order from the upper pallet, bring one end of the belt-shaped member on the pallet into contact with the lower surface of the molding drum of the tire molding machine, and rotate the molding drum while moving the pallet in the lengthwise direction to bond them together. And a method for assembling an automobile tire.

The tire molding machine may be a bias tire molding machine, a radial tire primary molding machine, or a secondary molding machine. And, as the belt-shaped member, an inner liner, a carcass ply, a breaker and a tread for a bias tire are exemplified, an inner liner, a carcass ply, a sidewall for primary molding of a radial tire, and a secondary molding of a radial tire. The first belt, the second belt, the tread, and the like are exemplified.

The pallet used in the present invention comprises a flat strip plate and legs for horizontally supporting the strip plate. The pallets can be stacked, and when stacked, the upper and lower pallets fit vertically, It is preferable that a gap is formed between the strip plates for accommodating the strip-shaped members. In this case, the storage place of the pallets can be narrowed and several tens of pallets can be collectively transported. Further, the strip plate is preferably made of aluminum having a smooth surface. In this case, the strip member is less displaced during storage as compared with polyurethane or synthetic resin, and when the strip member is attached to the forming drum, The member is peeled off smoothly.

The strip-shaped member cut into a predetermined length can be manually moved to a predetermined position on the pallet by an operator, but it is preferable that the band-shaped member is sucked by a vacuum pad and automatically transferred. Further, the strip-shaped member including the steel cord can be automatically transferred by being attracted by magnetic force. Further, the pallet on which the belt-shaped member is placed may be loaded on a dolly and automatically or manually transported, or may be collectively transported by a forklift truck. Further, the pallet on which the belt-shaped member having a predetermined length is placed is transported and stored near the tire building machine.

According to the present invention, however, when the belt-shaped member is manufactured and cut into a predetermined length, one pallet on which the belt-shaped members of different types are mounted is formed, and one pallet of the automobile tire is set as one set. They are stacked in the reverse order of the laminating order on the machine. That is, for bias tires, one pallet with treads, one with breakers, one with carcass plies, one with carcass plies with opposite cord directions and one with innerliner Stack them in order, and make a set of 5 pallets at the same time, stack them in multi-stages with this set of pallets as a unit, carry them near the bias tire molding machine, and store them. The tires are supplied to the tire molding machine, the pallets that have become empty are stacked side by side, stored, and appropriately conveyed to the belt-shaped member molding machine.

For the primary molding of radial tires,
A pallet with a sidewall, a pallet with a carcass ply, and a pallet with an inner liner are stacked one by one in the order near the strip-shaped member manufacturing device from bottom to top, and then these are stacked as a set in multiple stages for primary molding. To the machine. It is to be noted that one side wall is required for the left and right sidewalls, but the left and right sidewalls may be put on two pallets as different kinds of strip-shaped members, and two left and right sidewalls may be used as one strip-shaped member. The pallets may be placed in parallel at the same intervals as when they are attached by a molding machine.
That is, in the case of handling two different kinds of sheets, one of the left and right sides may be turned in the opposite direction when the two pallets are placed and placed, or when the pallets are placed in the same direction and fed to the primary molding machine. You may reverse the direction. Also, when treating two pieces as one piece of the same type, one of the two pieces manufactured by the same manufacturing apparatus may be placed on the same pallet in the opposite direction. It may be extruded in parallel in a symmetrical shape and placed on the same pallet in parallel. Further, the stacking order described above can be changed, and for example, a pallet on which the carcass ply is mounted, a pallet on which the inner liner is mounted, and a pallet on which the sidewalls are mounted may be in that order. On the other hand, for secondary molding of radial tires, a pallet with a tread, a pallet with a second belt, and a pallet with a first belt are stacked one by one from bottom to top, and these are combined into a multi-stage. Then, it is stacked on and conveyed to a secondary molding machine.

The pallets on which the belt-shaped members are mounted are sent one by one to the lower surface of the molding drum of the tire molding machine, and when the belt-shaped members on the pallet reach the lower surface of the molding drum, the tips of the pallets are raised or The leading end of the belt-shaped member is brought into contact with the lower surface of the molding drum by lowering the molding drum, and then the belt is wound around the molding drum by rotating the molding drum while feeding the pallet in the length direction. The pallet can be fed in the length direction by fixing the pallet on a slide table that can be moved back and forth and feeding the slide table at a predetermined speed, but the pallet can be moved back and forth on the slide table at a constant speed. The pallet can be automatically adjusted by advancing and retracting the pallet with respect to the slide table.

[0016]

Since the strip-shaped member is cut into a predetermined length after being manufactured without being wound into a roll, the length is accurately measured. Then, the strip-shaped members cut into a predetermined length are stretched linearly one by one on the pallet, and are conveyed as they are and supplied to the tire molding machine. There is no curl and the curvature of the curled portion does not vary, the amount of shrinkage after cutting becomes uniform, and the automation of the work of attaching the belt-shaped member on the forming drum becomes easy.

In the present invention, one set of pallets on which different kinds of strip-shaped materials are placed is further stacked as a unit and stored near the tire molding machine. Therefore, the storage space for the pallets on which the strip-shaped members are placed is one pallet. The space required is only a few minutes, and the storage space is a few times smaller than when storing pallets on which different types of belt-shaped members are mounted separately. Since it can be supplied to the molding machine, the transfer distance of the pallet is shortened and the work efficiency is improved.

It should be noted that two or more kinds of belt-shaped member manufacturing apparatuses are arranged close to each other, two common pallet holders are installed in the vicinity thereof, and one pallet holder is used to store an empty pallet.
By directly carrying and stacking different kinds of strip-shaped members manufactured by the above-described manufacturing apparatus on the other pallet holder immediately after manufacturing, the pallet storage space on the manufacturing apparatus side of the band-shaped members can be further reduced.

[0019]

1 is a manufacturing line for an inner liner (strip-shaped member), and a first line for placing an empty pallet for loading the inner liner L in front of it (on the right side in FIG. 1).
A pallet stand 12a is installed, and a second pallet stand 12b for stacking and storing empty pallets beside it (downward in FIG. 1) and a third pallet for stacking and storing the pallet on which the inner liner L is mounted. The stands 12c are arranged side by side in order. Inner liner production line 11 above
As shown in FIG. 2, the inner liner L manufacturing apparatus 1
1a, first conveyor 11b, and second conveyor 11c
, The inner liner L extruded from the manufacturing apparatus 11a is placed on the first conveyor 11b and sent to the second conveyor 11c, and the length of the inner liner L transferred to the second conveyor 11c is measured, When the length reaches the set length, a cutter (not shown) located above the boundary between the first conveyor 11b and the second conveyor 11c operates to cut the inner liner L to a predetermined length.

When the inner liner L having a predetermined length on the second conveyor 11c advances to a predetermined position,
The second conveyor 11c is stopped, and the inner liner L on the second conveyor 11c is moved to the first pallet stand 1 shown in FIG.
It is transferred onto an empty pallet 20 (see FIG. 3) on 2a.
In FIG. 2, reference numeral 25 denotes an overrail, which is provided so as to straddle the second conveyor 11c and the pallet rest 12 and under the traveling carriage 26 traveling on the overrail 25, a vacuum suction device 28 via an elevating device 27. Can be mounted vertically. The suction device 28 is for sucking the inner liner L on the second conveyor 11c, and has a suction port opened on the lower surface.

The traveling carriage 26 is provided with the second conveyor 11
It reciprocates between a predetermined position on c and the first pallet holder 12a fixed on the floor, and the inner liner L on the second conveyor 11c is sucked and held by the suction device 28 and conveyed above the first pallet holder 12a. The pallet holder 12a
The inner liner L is lowered onto the upper empty pallet 20 and then returned to above the second conveyor 11c.
Then, the pallet 20 on which the inner liner L is placed is moved to the third pallet holder 12c on the side,
The empty pallet 20 on the adjacent second pallet holder 12b is transferred onto the empty first pallet holder 12a.

As shown in FIG. 3, the empty pallet 20 is composed of an elongated rectangular strip 21 and frame-shaped legs 22 fixed along the periphery of the lower surface thereof. The strip plate 21 is a plate made of aluminum and having a smooth surface, and is fixed to the upper surface of the frame-shaped leg 22 so that the surface becomes flat. As shown in FIG. 4, the frame-shaped leg 22 is composed of a horizontal portion 22a that fixes the periphery of the strip 21 and an inclined edge portion 22b that extends downward from the outer edge of the horizontal portion 22a at equal angles. When a plurality of pallets 20 are piled up, the upper surface of the lower leg 22 is detachably fitted to the lower surface of the upper leg 22 without looseness. A space for accommodating the belt-shaped members such as the inner liner L, the carcass ply C and the sidewall W is formed therein.

In FIG. 1, a carcass ply (strip-shaped member) production line 1 having a structure similar to that of the inner liner production line 11 is provided on the side of the inner liner production line 11.
3 and a side wall manufacturing line 15 for manufacturing the left and right side walls (strip-shaped members) in parallel,
A first pallet holder 14a for carcass ply and a first pallet holder 16a for sidewall are installed in front of the carcass ply production line 13 and in front of the sidewall production line 15, respectively. Then, next to the first pallet rest 14a for the carcass ply (upward in the figure)
A second pallet stand 14b for stacking and storing empty pallets 20 and a third pallet stand 14 for stacking and storing the pallet 20 on which the carcass ply C is mounted.
c is arranged side by side, the second pallet holder 16b for storing the empty pallet 20 on the side of the first pallet holder 16a for the side wall (upper side in the figure) and the pallet 20 on which the side wall W is mounted. A third pallet stand 16c for stacking and storing the sheets is arranged in parallel.

In this embodiment, the pallet 2 in which the inner liner is placed between the third pallet holder 12c for the inner liner and the third pallet holder 14c for the carcass ply.
0, the pallet 20 on which the carcass ply is mounted and the pallet 20 on which the sidewall is mounted are stacked one by one in order, and a mixed pallet first pallet holder 17a and a mixed pallet second pallet holder 17b are arranged side by side to form a belt-shaped member. 3rd pallet stand 12 for storing the loaded pallets
The pallet 20 on the farthest side wall third pallet holder 16c among c, 14c and 16c is transferred to the mixed second pallet holder 17b. Then, the pallet 20 on which the two left and right sidewalls W are placed in parallel is moved from the mixed second pallet holder 17b to the adjacent first mixed pallet holder 17a, and then the mixed first pallet holder 17a. The pallet 20 carrying the carcass ply C is transferred from the third pallet holder 14c for carcass ply adjacent to the second pallet holder 17b to the first pallet holder 17a for mixed loading, and the third pallet holder for inner liner is thirdly placed. The pallet 20 carrying the inner liner L from 12c is transferred to the mixed first pallet rest 17a,
With this, the pallet 2 on which different kinds of belt-shaped members (sidewall W, carcass ply C, inner liner L) are mounted
Mixing of one set of 0 (one automobile tire, see FIG. 4) is completed. In the same manner, a large number of sets of pallets 20 are mixedly mounted on the first mixed pallet holder 17a.

As described above, the first pallet holder 1 for mixed loading
When a large number of sets of pallets 20 including different kinds of belt-shaped members are mixedly mounted on 7a, the plurality of sets of pallets 20 are conveyed to a plurality of radial tire primary molding machines 30 arranged side by side on the right side of FIG. Be done. The primary molding machine 30 includes a molding drum 3
A slide table 32 that is long in the front-back direction (left-right direction in the drawing) is provided below the slide table 1.
As shown in FIG. 5, an elevating device (not shown) below the molding drum 31 and a rear receiving roller 33 movably support the pinion 34 and the slide table 32 which are provided in the elevating device and rotate. It moves forward and backward by engaging with a rack (not shown) on the lower surface of the.

The pallet 20 is movably mounted on the slide table 32 via a number of guide rollers 35, and the rear end of the pallet 20 is locked by a stopper 36 at the rear end of the slide table 32. . Therefore, a belt-shaped member, for example, the pallet 20 on which the inner liner L is placed is placed on the slide table 32, the pinion 34 is driven to move the slide table 32 forward, and the tip of the inner liner L reaches directly below the forming drum 31. The slide table 32
The front end of the inner liner L is pressed against the lower surface of the forming drum 31, and while the slide table 32 is moved forward, the forming drum 31 is rotated so that the peripheral speed becomes equal to the feed speed of the slide table 32. When the inner liner L is wound around the forming drum 31, the pallet 20 advances with respect to the slide table 32 according to the thickness of the inner liner L as the winding progresses, and the feed speed of the inner liner L is finely adjusted. As a result, a gap is created between the stopper 36 and the pallet 20, and the winding is performed while the gap gradually widens, thereby preventing wrinkles from being generated in the inner liner L.

However, in this embodiment, as shown in FIG. 1, empty pallet holders 37 for stacking and storing empty pallets 20 on the left and right sides (upper and lower sides in FIG. 1) of the slide table 32 and the different types. A mixed loading pallet holder 38 for storing a large number of sets of pallets on which the belt-shaped members are mounted is installed, and the mixed first pallet holder 17a on the side of the manufacturing apparatus of the belt-shaped members is used to store different types of belts. A large number of sets of pallets on which the members are mounted are transported and stored, and then the molding operation is started.

First, the pallet 20 on which the uppermost inner liner L is placed is taken out from the mixed pallet table 38 and supplied to the slide table 32, and the inner liner L is wound around the forming drum 31 and emptied. The pallet 20 is moved to the empty pallet stand 33. Next, the pallet 20 on which the carcass ply C is placed is taken out from the mixed loading pallet stand 38 and supplied to the slide table 32, and the carcass ply C is wound around the forming drum 31.
The empty pallet 20 is transferred to the empty pallet stand 33. Further, the pallet 20 on which the sidewall W is mounted is taken out from the mixed pallet holder 38 and supplied to the slide table 32, and the two sidewalls W on the left and right are wound on the forming drum 31 to complete the assembly of the primary case. The obtained primary case is taken out, and the empty pallet 20 is transferred to the empty pallet stand 33. Thereafter, the molding of the primary case proceeds in the same manner.

FIG. 8 illustrates a comparative example of a method of assembling the same primary case as described above, in which the inner liner manufacturing line 11, the carcass ply manufacturing line 13 and the sidewall manufacturing line 15 are arranged side by side at equal intervals. A first pallet holder 12a, a second pallet holder 12b and a third pallet holder 12c are provided in front of the inner liner manufacturing line 11, and a first pallet holder 14a and a second pallet holder are provided in front of the carcass ply manufacturing line 13. 14
b and the third pallet holder 14c, and the first pallet holder 16 in front of the sidewall manufacturing line 15.
a, the second pallet rest 16b and the third pallet rest 16c are arranged in parallel.

Then, when an empty pallet 20 is supplied from the second pallet holder 12b onto the first pallet holder 12a in front of the inner liner manufacturing line 11, and the inner liner L is placed on this empty pallet 20. The pallet 20 on which the inner liner L is placed is placed on the third pallet holder 12c, and the pallet 20 on which the inner liner L is placed on the third pallet holder 12c is repeated.
Are stacked. Similarly, the pallet 20 on which the carcass ply C is placed is stacked on the first pallet holder 14a in front of the carcass ply manufacturing line 13 and stacked on the third pallet holder 14c on the side, and the sidewall manufacturing line 15 The pallets 20 on which the sidewalls W are placed are stacked on the first pallet holder 16a on the front side of the third pallet holder 16c on the side.

On the other hand, on one side of the slide table 32 of the primary molding machine (tire molding machine) 30, an empty pallet stand 37 is provided.
Is installed, and the pallet holder 38a for the inner liner and the pallet holder 38b for the carcass ply for stacking and storing the pallet 20 with the inner liner L on the opposite side.
And the side wall pallet holders 38c are arranged in parallel. And first, the inner liner pallet holder 38
The pallet 20 is supplied to the slide table 32 from a, the pallet 20 that has become empty after winding is transferred to the empty pallet holder 37, and then the pallet 20 is supplied to the slide table 32 from the carcass ply pallet holder 38b. The pallet 20 emptied after winding is transferred to the empty pallet holder 37, and the pallet 20 is further moved from the sidewall pallet holder 38c to the slide table 3
The pallet 20 that has been supplied to No. 2 and has become empty after winding is transferred to the empty pallet holder 37.

Comparing the embodiment of FIG. 1 and the comparative example of FIG. 8, in the embodiment, the mixed first pallet holder 17a and the second pallet holder 17b are provided on the side of the belt-shaped member manufacturing apparatus in comparison with the comparative example. Although an extra space is provided on the tire building machine side, the space for placing the pallet 20 on which the belt-shaped member is placed may be one for the mixed pallet holder 38, whereas in the comparative example, the inner liner pallet holder 38a and the carcass ply are used. It is necessary to provide three pallet holders 38b and sidewall pallet holders 38c, and the difference between them is two. Since the productivity of one set of the band-shaped member manufacturing line is balanced with that of several primary molding machines, when two or more primary molding machines 30 are installed, the number of primary molding machines 30 increases by one. Space for two pallet holders can be saved.

Incidentally, in FIG. 1, the mixed second pallet stand 17b on the side of the belt-shaped member manufacturing apparatus is omitted,
The space is further saved by directly transferring the pallet 20 on which the sidewall W is mounted on the third sidewall pallet holder 16c to the first mixed pallet holder 17a.

The pallet rests in front of the strip-shaped member manufacturing lines 11, 13 and 15 on the strip-shaped member manufacturing apparatus side of FIG. 1 are the first pallet rests 12a, 14a and 1a.
As shown in FIG. 6, leaving only 6a and omitting others, an empty pallet table 19a and a mixed pallet table 19b are provided in front of the first pallet table 12a, 14a, 16a.
Of the empty pallets 20 on the empty pallet holder 19a
First pallet rests 12a, 14a, 16a at three locations
Pallet 20 loaded with sidewalls W,
The pallet 20 on which different belt-shaped members are placed by sequentially carrying the pallet 20 on which the carcass ply C is loaded and the pallet 20 on which the inner liner is loaded to the mixed pallet table 19b.
0 can be mixedly loaded, in which case the storage space of the pallet 20 is further saved.

FIG. 7 shows a primary molding machine 30 for radial tires.
The first table 39a for empty pallets and the second table 39b for empty pallets are arranged in parallel on one side of the slide table 32, and the first table 40a for mixed pallets and the second table 40b for mixed pallets are arranged on the opposite side. They are arranged side by side,
In this case, a large number of sets of pallets 20 on which the strip-shaped members of A lot are placed on the first loading platform 40a for mixed loading pallets and a large number of pallets 20 on which the strip-shaped members of B lot are loaded on the second loading platform 40b for mixed loading pallets are stacked. The sets can be stacked to form a plurality of primary cases of A lot and a plurality of primary cases of B lot alternately.

[0036]

As described above, the invention described in claim 1 is a method of assembling an automobile tire in which two or more kinds of belt-shaped members constituting an automobile tire are laminated one by one on a forming drum of a tire forming machine. In the above, each of the above-mentioned two or more kinds of belt-shaped members is formed into a long length and cut into a predetermined length while being conveyed by a conveyor, and the belt-shaped members having a predetermined length are flatly stacked one by one on a stackable pallet. The pallets on which these different types of belt-shaped members are mounted are stacked one by one, and one set of the above-mentioned automobile tires is set as one set and stacked in the reverse order of the above-mentioned laminating process. Of the pallet, and one end of the belt-shaped member on the pallet is brought into contact with the lower surface of the molding drum of the tire molding machine to transfer the pallet to the pallet. Since the method for assembling an automobile tire is characterized in that the molding drum is rotated while moving in the vertical direction, the constant length cutting of the belt-shaped member is accurately performed similarly to the above-mentioned prior invention, and the belt-shaped member is conventionally used. There is no curl on the member, the shrinkage amount after cutting is uniform, the work of attaching the belt-shaped member on the forming drum is easy, and the number of measuring and cutting devices for the belt-shaped member is significantly reduced. Equipment cost can be saved, automation can be facilitated, the remaining band-shaped member can be eliminated at the end of tire molding for one lot, and a small lot can be made and the pallet storage space can be reduced. it can.

The invention described in claim 2 is the method for assembling an automobile tire according to claim 1,
Since the pallet is a method of assembling an automobile tire including a strip plate made of aluminum having a smooth surface and legs for horizontally supporting the strip plate, the storage space of the pallet can be narrowed and the pallet can be easily transported. In this case, by using a strip plate made of aluminum with a smooth surface, it is possible to reduce the positional deviation of the strip member during carrying and storing the strip member, and when attaching the strip member to the forming drum. In addition, the strip-shaped material is smoothly peeled off, so that unnecessary deformation does not occur in the strip-shaped member.

According to the invention described in claim 3, in the method for assembling an automobile tire according to claim 1 or 2, when the pallet on which the belt-shaped member is mounted is supplied to the molding drum of the tire molding machine, the molding drum is Since it is a method of assembling an automobile tire in which the pallet is mounted on the slide table that moves forward at a constant speed, the difference between the appropriate feeding speed according to the thickness of the belt-shaped member and the speed of the slide table is compared with the slide table. By automatically moving the pallet forward and backward, the belt-shaped member can be constantly supplied at an appropriate speed according to its thickness.

[Brief description of drawings]

FIG. 1 is a layout view of an apparatus showing an embodiment of the present invention.

FIG. 2 is a side view of the manufacturing apparatus.

FIG. 3 is a perspective view of a pallet.

FIG. 4 is a vertical sectional view of stacked pallets.

FIG. 5 is a side view of the primary molding machine.

FIG. 6 is a modified layout view of a pallet stand on the side of a belt-shaped member manufacturing apparatus.

FIG. 7 is a modified layout view of the pallet holder on the primary molding machine side.

[Explanation of symbols]

L: inner liner (strip member), C: carcass ply (strip member), W: sidewall (strip member), 1
1: inner liner manufacturing line, 11a: inner liner manufacturing device, 11b: first conveyor, 11c: second conveyor, 12a, 12b, 12c: pallet stand, 1
3: Carcass ply production line, 14a, 14b, 14
c: pallet stand, 15: sidewall production line, 16a, 16b, 16c: pallet stand, 19
a: empty pallet holder, 19b: mixed pallet holder,
20: Pallet, 21: Strip plate, 22: Frame-shaped legs, 2
5: over rail, 26: traveling carriage, 27: lifting device, 28: vacuum suction device, 30: primary molding machine for radial tires, 31: molding drum, 32: slide table, 33: receiving roller, 34: pinion, 35: guide roller, 36: stopper, 37 ,: empty pallet holder,
38: mixed pallet stand, 38a: inner liner pallet stand, 38b: carcass ply pallet stand, 38c: sidewall pallet stand, 39
a, 39b: Empty pallet holder, 40a, 40b: Mixed pallet holder.

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[Procedure amendment]

[Submission date] May 19, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a layout view of an apparatus showing an embodiment of the present invention.

FIG. 2 is a side view of the manufacturing apparatus.

FIG. 3 is a perspective view of a pallet.

FIG. 4 is a vertical sectional view of stacked pallets.

FIG. 5 is a side view of the primary molding machine.

FIG. 6 is a modified layout view of a pallet stand on the side of a belt-shaped member manufacturing apparatus.

FIG. 7 is a modified layout view of the pallet holder on the primary molding machine side.

FIG. 8 is a layout diagram showing an example of a conventional device.

[Explanation of Codes] L: Inner Liner (Strip Member), C: Carcass Ply (Strip Member), W: Sidewall (Strip Member), 1
1: inner liner manufacturing line, 11a: inner liner manufacturing device, 11b: first conveyor, 11c: second conveyor, 12a, 12b, 12c: pallet stand, 1
3: Carcass ply production line, 14a, 14b, 14
c: pallet stand, 15: sidewall production line, 16a, 16b, 16c: pallet stand, 19
a: empty pallet holder, 19b: mixed pallet holder,
20: Pallet, 21: Strip plate, 22: Frame-shaped legs, 2
5: over rail, 26: traveling carriage, 27: lifting device, 28: vacuum suction device, 30: primary molding machine for radial tires, 31: molding drum, 32: slide table, 33: receiving roller, 34: pinion, 35: guide roller, 36: stopper, 37 ,: empty pallet holder,
38: mixed pallet stand, 38a: inner liner pallet stand, 38b: carcass ply pallet stand, 38c: sidewall pallet stand, 39
a, 39b: Empty pallet holder, 40a, 40b: Mixed pallet holder.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuo Tada, Fujinoki, Tianjin, Itami City, Hyogo Prefecture Toyo Tire & Rubber Co., Ltd. Tire Technology Center

Claims (3)

[Claims] 1. A method of assembling an automobile tire in which two or more belt-shaped members constituting an automobile tire are sequentially laminated one by one on a molding drum of a tire molding machine, wherein each of the two or more belt-shaped members is elongated. Mold and cut on a conveyor while cutting it to a specified length, and place each of these specified lengths of band-shaped members on a pallet that has a flat surface and is stackable. One by one, one set of the above-mentioned automobile tires is stacked in the reverse order of the above-mentioned laminating and conveyed near the machine base of the tire forming machine, and the one set of pallets is taken out in order from the upper pallet and placed on the pallet. An automobile characterized in that one end of the belt-shaped member is brought into contact with the lower surface of the molding drum of the tire molding machine, and the molding drum is rotated while the pallet is moved in the lengthwise direction to be laminated. How to assemble a tire. 2. The method of assembling an automobile tire according to claim 1, wherein the pallet comprises an aluminum strip having a smooth surface and legs for horizontally supporting the strip. 3. The method for assembling an automobile tire according to claim 1 or 2, wherein when a pallet carrying a belt-shaped member is supplied to a molding drum of a tire molding machine, a slide that advances toward the molding drum at a constant speed. A method for assembling an automobile tire in which the above pallet can be freely moved back and forth on a table.