JPH11198246A - Tire molding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the disposition of a band drum and a belt drum optimum and reduce the labor load of workers to a large extent. SOLUTION: A band drum 12 and a belt drum 22 are disposed in array with their axial lines X and Y in parallel, and a band transfer device 3 is provided movable reciprocatingly in the axial line X direction on one side of the band drum 12, while a belt transfer device 2 is provided movable reciprocatingly in the axial line Y direction on one side of the belt drum 22, and also a shaping drum 52 is disposed with its axial line Z in parallel with the axial lines X and Y of the band drum 12 on one side of the band transfer device 3 and the belt transfer device 4, and the belt drum 22 is also movable reciprocatingly in the direction crossing the axial line Z.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire forming apparatus for forming a green tire, and more particularly to a tire forming apparatus for optimizing an arrangement of a band drum and a belt drum.

[0002]

2. Description of the Related Art In general, in a single-stage type tire forming apparatus, a band having sidewalls, an inner liner, a carcass ply, etc. is formed by a band drum, and a tread is laminated on a belt ply by a belt drum. The body is formed, and these are conveyed to a shaping drum, where the band is deformed into a toroidal shape, and a belt laminate is transferred to the outer periphery thereof to form a green tire.

[0003] Conventionally, in such an apparatus as described above, a process of transporting a band and a belt laminate formed by a band drum and a belt drum to a shaping drum and shaping there to form a green tire has already been automated. However, in the process of pasting each supplied molding member to a band drum or a belt drum, an operator guides the leading end of the molding member to a fixed position on the drum or cuts after winding and cuts the leading end and the rear end. It is necessary to perform operations such as joining. For this reason, there is a problem in that the worker has to move back and forth between the band drum and the belt drum many times during the working hours of the day, and the work load is extremely large.

Therefore, as a countermeasure against the above, for example, a band-shaped drum and a belt drum are arranged on the left and right sides, and a T-shaped layout in which a shaping drum is arranged between them,
Alternatively, a layout has been proposed in which a band drum and a belt drum are arranged adjacent to each other in a straight line, but there is still room for improvement.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a tire forming apparatus which can optimize the arrangement of a band drum and a belt drum and can greatly reduce the labor burden on an operator.

[0006]

According to the present invention, there is provided a tire forming apparatus having a band drum, a belt drum, and a shaping drum, wherein the band drum and the belt drum are juxtaposed with their axes parallel to each other. And
A band transfer device is provided on one side in the axial direction of the band drum so as to be able to reciprocate in the axial direction, and a belt transfer device is provided on one side in the axial direction of the belt drum so as to be reciprocable in the axial direction. Further, the shaping drum is arranged on one side of the band transfer device and the belt transfer device so that the axis thereof is parallel to the axis of the band drum and the belt drum, and can be reciprocated in a direction orthogonal to the axis. It is characterized by the following.

[0007] By arranging the band drum and the belt drum side by side with the axes parallel to each other, an operator working between them can change the direction and work on both drums. The arrangement with the belt drum can be optimized. Therefore, it is not necessary to walk between the band drum and the belt drum many times as in the related art, so that the work load on the operator can be greatly reduced.

Further, in order to provide a substantially rectangular layout in which a band transfer device and a belt transfer device are arranged on one side of the band drum and the belt drum arranged side by side, and a shaping drum is further arranged on one side thereof. Since the entire units can be arranged in a grouped area without extending long, space can be saved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows an example of a tire molding apparatus according to the present invention. 1 is a band forming machine for forming a band to which a sidewall, an inner liner, a carcass ply and the like are attached, 2 is a belt forming machine for forming a belt laminate in which a tread is laminated on a belt ply, 3
Is a band transfer device for transferring the band formed by the band forming machine 1, 4 is a belt transfer device for transferring the belt laminate formed by the belt forming machine 2, and 5 is a toroidal shaping of the band. It is a shaping molding machine.

The band forming machine 1 has a cantilever-supported band drum 12 supported on one side of a driving device 11.
The operation of 1 rotates the band drum 12. On the rear side of the band drum 12, a band servicer 6 for supplying each forming member for forming a band is provided.

The belt forming machine 2 has a drive device 21 on one side of which a scalable belt drum 22 is cantilevered. When each forming member is pasted on the belt drum 22, the drive device 21 operates to drive the belt drum. 22 is rotated. The belt drum 22 and the band drum 12 are juxtaposed in front and rear so that the axes X and Y extending left and right are parallel. Both molding machines 1 and 2 are configured such that their positions are fixed and cannot be moved. On the front side of the belt drum 22, a belt servicer 7 for supplying each forming member for forming the belt laminate is arranged.

The band transfer device 3 is installed on one side of the band drum 12 in the direction of the axis X, and can be held by a cylindrical holding portion 31 that expands and contracts the band formed on the band drum 12. . The holding section 31 includes a band holding mechanism for holding a band, and a bead holding mechanism for holding a bead loaded from a bead loader 9 disposed on the rear side of the band holding mechanism. It is arranged so as to coincide with X. The band transfer device 3 is configured to be able to reciprocate between a band receiving position A and a band receiving position B along front and rear guide rails 32 extending in the left and right directions parallel to the axes S and X.

The belt transfer device 4 is installed on one side in the direction of the axis Y of the belt drum 22 so as to be arranged in front of and behind the band transfer device 3. It can be held by a ring-shaped holding portion 41 that can be expanded and contracted. This holding part 41 has its axis T
Are arranged so as to coincide with the axis Y of the belt drum 22. The belt transfer device 4 is reciprocally movable between a belt receiving position C and a belt receiving position D along front and rear guide rails 42 extending in the left and right directions parallel to the axes T and Y.

The shaping molding machine 5 is installed on one side of the band transfer device 3 and the belt transfer device 4. A shaping drum 52 having an expandable and contractible bead lock mechanism is cantilevered on the other side of the driving device 51, and the shaping drum 52 is rotatable by the operation of the driving device 51. The shaping drum 52 is arranged so that its axis Z is parallel to the axes X and Y of the band drum 12 and the belt drum 22. This shaping molding machine 5 moves along left and right guide rails
By reciprocating in the front-rear direction orthogonal to the axis Z of the shaping drum 52, the shaping drum 52 is moved between the band transfer position B of the band transfer device 3 and the belt transfer position D of the belt transfer device 4. I have to.

Reference numeral 8 denotes a stitcher installed adjacent to the belt receiving position D, and P denotes a work position of an operator. According to the above-described tire forming apparatus, each forming member for forming a band is supplied from the band servicer 6, and an operator guides the tips of the forming members to a fixed position on the band drum 12 at the working position P, After being wound around the drum 12, cutting is performed, and a work such as joining a front end and a rear end thereof is performed to form a band on the band drum 12.

The formed band on the band drum 12 is transferred to the shaping drum 52 by an automatic process. That is, the band transfer device 3 on which the beads have been transferred by the bead loader 9 moves to the other side (the right side in the drawing) of the band receiving position A. After the band drum 12 expands in diameter and presses the cylindrical band onto the annular bead, the band holding mechanism of the holding portion 31 reduces the diameter to hold the band on the inner band drum 12 and receive the band.

Next, the band transfer device 3 moves to one side (left side in the figure) to the band transfer position B, where the shaping drum 5 of the shaping molding machine 5 is waiting.
2. The band is expanded to receive the band on the drum while holding the bead pressed to the band by the bead lock mechanism. The shaping molding machine 5 moves forward (downward in the figure), and the shaping drum 52 waits at the belt transfer position D.

During the above-mentioned automatic process, an operator forms a belt laminate with the belt forming machine 2. When an operator moves from the band forming machine 1 to the belt forming machine 2, the band drum 1
2 and the belt drum 22 are arranged side by side with their axes parallel to each other, so that the worker working at the work position P therebetween changes the belt stacking direction from the rearward state to the frontward state by simply changing the direction. You can move on to molding the body.

In the belt forming machine 2, the belt servicer 7
The worker guides the leading end to a fixed position on the belt drum 22 or cuts the formed member supplied from the belt drum 22 after winding it around the belt drum 22 and joins the leading end and the rear end. Then, the belt laminate is formed on the belt drum 22. After the molding, the belt transfer device 4 moves to the belt receiving position C on the other side, and reduces the diameter of the holding portion 41 to hold the formed belt laminate on the inner belt drum 22. The belt transfer device 4 having received the belt stack moves to one side to the position of the shaping drum 52 waiting at the belt transfer position D.

The shaping molding machine 5 starts the shaping operation, shapes the band on the outer periphery of the shaping drum 52 into a toroidal shape, and presses the band against the belt laminate held by the holding portion 41 of the belt transfer device 4. The holding portion 41 expands the diameter to release the holding of the belt laminate, and transfers the belt laminate to the outer periphery of the toroidal band. When the belt transfer device 4 returns to the position shown in FIG. 1, the driving device 51 rotates the shaping drum 52, and the stitcher 8 sticks the belt laminate to the toroidal band without any gap. Then, both ends of the carcass are turned around the bead core by a bladder (not shown) attached to the shaping drum 52 to form a green tire. The molded green tire is taken out by a green tire take-out device (not shown).

As described above, in the present invention, the band drum 12
And the belt drum 22 are arranged side by side with their axes X and Y parallel, so that the worker working between the two drums can change the direction and perform the work on both drums 12 and 22. become. Therefore, it is not necessary to walk between the band drum 12 and the belt drum 22 during the working hours and go back and forth many times, so that the labor load on the worker can be greatly reduced. As a result, it greatly contributes to the occurrence of an accident due to fatigue and a decrease in the accuracy of attaching each member.

A band transfer device 3 and a belt transfer device 4 are provided on one side of the side-by-side band drum 12 and belt drum 22, and a shaping drum 5 is provided on one side.
By adopting a substantially rectangular layout in which 2 are arranged, the entire units can be collectively arranged in a predetermined area without extending long, so that space can be saved.

In the present invention, the above-described tire forming apparatus is configured such that both ends of the carcass are turned around the bead core after the attaching step by the stitcher 8. Instead, the band received by the shaping machine 5 is shaped. After shaping in a toroidal shape with a drum 52, folding both ends of a carcass around a bead core with a bladder, transferring the belt laminate, stitching it with a stitcher 8, and forming a green tire. Is also good.

[0024]

As described above, according to the present invention, in a tire forming apparatus having a band drum, a belt drum, and a shaping drum, the band drum and the belt drum are arranged side by side with their axes parallel. By simply changing the direction of the worker working in the meantime, the band forming on the band drum and the belt laminate on the belt drum can be performed, optimizing the arrangement of the band drum and the belt drum, and reducing the work of the worker Can be greatly contributed to.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing one example of a tire molding apparatus of the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 band forming machine 2 belt forming machine 3 band transferring device 4 belt transferring device 5 shaping forming machine 6 band servicer 7 belt servicer 8 stitcher 12 band drum 22 belt drum 52 shaping drum A band receiving position B band receiving position C belt receiving Position D Belt transfer position P Work position S, T, X, Y, Z axis

Claims (1)

[Claims] 1. A tire forming apparatus having a band drum, a belt drum, and a shaping drum, wherein the band drum and the belt drum are arranged side by side with their axes parallel to each other, and a band is provided on one side in the axial direction of the band drum. While the transfer device is provided so as to be able to reciprocate in the axial direction,
A belt transfer device is provided on one side of the belt drum in the axial direction so as to be able to reciprocate in the axial direction. Further, the band transfer device and the shaping drum are provided on one side of the belt transfer device. And a tire forming apparatus arranged so as to be parallel to the axis of the belt drum and capable of reciprocating in a direction perpendicular to the axis.