JPS584379A - Transporter for tire structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for transferring tire components, and more particularly to a device for transferring tire components such as bands, $1 stage green tires, or second stage green tires to the next process equipment. It is.

For example, when molding a radial tire, first the tire components are bonded together on the band forming drum of a band forming machine to form a band, then the formed band is pulled out from the drum, and this is used in the first stage of green tire forming. The first stage green tire is molded by fitting it into the molding drum of the machine, and further attaching or pasting the tire constituent parts on this molding drum, and then molding the molded first stage green tire. Pull it out from the drum and fit it into the forming drum of the second stage green tire forming machine.
After further laminating the tire components on this drum to form a second-stage green tire, the formed second-stage green tire, that is, the completed green tire, is extracted from the drum and conveyed to a vulcanizing device. . (In some cases, the green tire forming stages are not separated as described above, and a completed green tire is formed from the band using one forming machine.) However, in the past, the work between each of the above-mentioned processes, namely the band, the first stage green tire The work of extracting the green tire from the forming drum, transporting it, fitting it into the forming drum for the next process, and removing and transporting the completed green tire were mostly done manually.
Not only is the productivity of the personnel involved not only in direct work, but also in transporting the stock trolley, managing stocking dates, etc., poor productivity, as well as the above-mentioned removal and fitting of each tire component, deformation due to stocking, and variations in stocking period. There were problems such as disparities in the skill level of workers, which hindered quality improvement.

Therefore, recently, in order to solve the above-mentioned problems, a tire structure transfer device equipped with a tire structure gripping means has been proposed and is being put into practical use.

However, all of these types of transfer devices are constructed so that a guide rail is constructed or laid between each forming drum, and the transfer device fat is moved along this guide rail, so the arrangement of each forming machine is limited. Currently, there are problems not only in the effective use of factory space, but also in the use of specialized machines.

The purpose of the present invention is to solve the problems mentioned in 2 above, expand the allowable range of placement of each molding machine, and create a structure that can be used as a transport device for tire components at each molding stage by simply replacing the gripping attachment. It is an object of the present invention to provide a simple and excellent tire structure transporting device.

The features include a gripping attachment equipped with a gripping means that can be freely expanded and contracted in the radial direction, and rotatably attached to the free end of the arm via a shaft rod.
In addition, the base of this arm is rotatably attached to a shaft rod fixed to a column, arm rotation means is provided between this column and the arm, and rotation means are fixed to each of the shaft rods, respectively. By linking the rotating means by a rotational force transmitting means, and rotating the arm about a shaft fixed to the support by the arm rotating means,
The axial direction of the gripping attachment can be automatically rotated by an angle corresponding to the rotation angle of the arm and the rotation ratio of each of the rotation means.

Hereinafter, the present invention will be explained in detail by way of examples with reference to the drawings.

FIG. 1 is an explanatory front view showing a tire structure transfer device according to an embodiment of the present invention, FIG. FIG. 4 is an enlarged plan view of part A in FIG.
FIG. 2 is an explanatory plan view showing a process of transferring the band from the band forming drum onto the green tire forming drum.

In the figure, E denotes a tire structure transfer device according to an embodiment of the present invention, which includes a gripping attachment (Eb) having an advancing/retracting means Eai and a gripping means Ebl that can be freely expanded and contracted in the radial direction.
i. It is rotatably attached to the free end EdO of the arm Ed via the shaft Edl, and the base Ed2 of this arm Ed is rotatably attached to the shaft Eel fixed to the pillar Ee, and this pillar Ee and the arm An arm rotation means Ef is provided between the shaft rod Edl and the shaft Eel, and sprockets Egl and Eg2, which are rotation means, are provided on the shaft rod Edl and the shaft Eel, respectively.
e While fixed, each sprocket Egl, E
g2 t- It is constructed in conjunction with a chain Eh which is a rotational force transmission means.

To further explain this structure, as shown in FIG.
l, and the guide rod Ea attached to the bottom side of this machine frame Ea1.
(2) and the gripping attachment attached to one side of the machine frame Ea1 and slidably suspended from the guide rod Ea2; and an air cylinder E that moves Eb along the guide rod Ba2.
a3, and this air 7 leader Eaa
By operating, the gripping attachment Bb can be moved from side to side in the figure along the guide rod Ea2 via the rod (not shown).

In this embodiment, as shown in FIG. 1, the gripping attachment Eb is slidably suspended from the guide rod Ea2 at its upper end, and is attached to the nine machine frame Eb2 in the radial direction via the gripping attachment Eb2. It is configured to be attached to a gripping means Eb11 that can be expanded and contracted. And this gripping means j;, b1. i;
j, above gray) Slide unit on Eb2) Eb3
are arranged on the same circumference, and each unit)
A gripping arm Eb4 is attached to each of the Eb3, and is configured to be able to expand and contract in the radial direction by appropriate driving means (not shown). Note that the inner surface of each of the gripping arms gb4 may be provided with suction means for the tire structure, if necessary.

As described above, the arm Edi cylinder or other arm rotation means Ef is used to rotate the arm by an angle α as shown by the chain line in FIG.
When the ratio of the number of teeth of Sugerocket L-Egl and Sugerocket Eg2 is set to β, the required rotation angle of the shaft Edl with respect to the arm Ed is (number of times of Sugerocket Egl): (number of teeth of Sugerocket Eg2) = β: α. By doing this, the shaft Ed
l can pivot by an angle β.

Note that it is difficult to obtain a positive ratio of α:β, and the angles of each SGUROKETS) Egl and 8g2 do not change steplessly like other rotating means such as V-belt Nolly. It is difficult to rotate by β.

Therefore, the tooth number ratio of each Sugurokets FEg11Eg2 is α:
The angle is slightly larger than β, that is, the axis Edl is allowed to turn at a angle larger than the predetermined angle β, and the stopper arm Ed3 is attached to the axis Edl, while the stopper arm Ed3 is attached to the arm Ed.
It is desirable to be able to limit the turning angle to β by installing -Ed4. At this time, due to the rotation of the arm Ed, a force is applied to the shaft Edl via the chain Ehl in order to further rotate it, but this is done by inserting spring units (ghl) at appropriate positions on the chain 7Eh, as shown in Figure 1. If you do this, one side of this sugering will expand and the other side will contract, causing the shaft rod Ed
No mechanical strain occurs in l.

In addition, each suzoroket which is the rotation means in this example)
It is also possible to replace Egl and 8g2 with another rotating means, such as a Vf-reel, which can steplessly adjust the rotation ratio described above, and to replace the chain Ehy with a separate rotational force transmission means, such as a V-belt. Of course there is. , and when using each sprocket Egl, 8g2 t-,
It is also possible to rotate the gripping attachment Eb (i-correctly) by attaching the sprocket (8g2) to the shaft rod Edl via a component with a sliding mechanism called a torque limiter. In the case of this example,
The stopper arm Ed3, which is attached to the shaft rod Edl at a predetermined position by the action of the spring unit) Ehl,
Since it is crimped to the strut horn + -Ed4, it can be stopped at the correct position.

Furthermore, in this embodiment, as described above, a sedge rocket was used as the rotation means, and a chain was used as the rotational force transmission means. It goes without saying that a large number of gears may be arranged in a row between each gear to serve as a rotational force transmission means, or a timing belt tractor may be used as a rotational force transmission means.

Next, the operation of the above-described apparatus will be explained.

This device not only transfers the endless tire member, ie, the band, from the band forming machine to the first stage green tire forming machine, but also transfers the green tire from the first stage green tire forming machine to the second stage green tire forming machine. Although the present invention can also be used for transporting a tire, taking out a tire from a second stage green tire molding machine, etc., an example will be described here in which a band is transported from a band molding machine to a first stage green tire molding machine.

F is the band forming drum of the band forming machine.

G is a band formed on a band forming drum F.

H is the forming drum of the first stage green tire forming machine. The molding drum H and the hand molding machine drum F form a certain angle r, which is 30 degrees in this example, as shown in FIG. % and D are spaced apart by 3000%. In this arrangement, the shaft rod Ed at the tip of the arm Ed
The axial center of L is arranged at each rotation limit position of arm Ed, on the extension of the central axis of each forming drum )', 'H, and at an equal distance from the center of each forming drum F, H. ing.

That is, in FIG. 4, A and B are equidistant.

In Fig. 4, arm Ed is first connected to band forming drum F.
Guide rod Ea attached to machine frame Ea1 by swinging stone/e-Ea4 and stone arm Ed2 on the side.
2 stops correctly parallel to the axis of the band forming drum F. At this position, the center of each gripping arm Eb4 of the gripping attachment (Eb) and the center of the band forming drum F are correctly aligned.

Thereafter, the gripping arm Eb4 is advanced toward the band forming drum F by the cylinder Ea3. When the grip arm Eb4 stops at a predetermined position, the slide unit Eb4
3, the diameter is reduced to approach the outer periphery of the band forming drum F, and the band G is gripped. In this state, the band forming drum F
Reduce the diameter. In other words, the outer diameter is made smaller than when the band was molded. Then, while gripping the band G1 with the gripping arm Eb4, the gripping attachment Eb4 is moved back in the direction of the column Ee by the cylinder Ea3. After retreating to a predetermined position, the arm Edl is rotated toward the first stage green tire forming drum b side by the arm rotating means Ee. At this time, the shaft rod gctt begins to rotate, that is, the gripping attachment (holding the band G1) is rotated by a predetermined angle β, and the stopper arm Ed3 and Ea4 are placed in the correct position relative to the center of the forming drum H. Stop.

At this time, the forming drum H is previously reduced in diameter to be smaller than the inner diameter of the band G. Therefore, bump gripping arm Eb
4 moves forward toward the forming drum H side by the cylinder Ea3 while gripping the band G, stops at a predetermined position, expands the diameter of the forming drum H, expands the diameter of the band gripping arm Eb4, and moves the gripping arm Eb46 to the forming drum H. Move it further away, and then move the gripping attachment (Eb) back using the cylinder Ba3.

With the above, the band G can be correctly supplied to the forming drum H.

As described above, the present invention provides a gripping attachment (t) having a reciprocating means and a gripping means that can be freely expanded and contracted in the radial direction. The base of the is rotatably attached to a shaft fixed to a column, and an arm rotation means is provided between the column and the arm, and a rotation means is fixed to each of the shafts. Since the arm is linked by the rotational force transmission means, the arm is rotated about the shaft fixed to the support by the arm rotation means;
The axial direction of the gripping 4 attachment can be automatically rotated by an angle corresponding to the rotation angle of the arm and the rotation ratio of each of the rotation means, while the gripping attachment can be moved forward and backward by the forward and backward movement means.

Therefore, while there is no need to limit the arrangement of each tire molding machine to perpendicular or parallel, etc., even when each tire molding machine is installed at a factory, it is possible to adjust the rotation angle of the arm and the gripping attachment by shifting it as appropriate depending on the position of the pillar etc. Not only can this be done simply by changing the rotation ratio of the rotating means according to the required rotation angle, but the gripping attachment can also be rotated by simply rotating the arm as described above, which makes it possible to achieve a structurally superior 7-inch rotation angle. can be easily controlled, and can be obtained at low cost.

Further, since the present invention is configured as described above, it can be used as a transport device for tire structures at each molding stage by simply replacing the gripping attachment.

[Brief explanation of drawings]

FIG. 1 is a front view explanatory view showing a tire structure transfer device according to a ninth embodiment of the present invention, FIG. 2 is a partially cutaway front view explanatory view showing the main parts of the same, and FIG. FIG. 4 is an enlarged plan view of part A.
Transfer the band from the band forming drum to the green tire forming drum! FIG. Ea... forward/backward movement means, Eb... grasping attachment,
Ebl...gripping means, Ed...arm! j″Edl
... shaft rod, Ee ... pillar, Eel ... shaft rod, Ef
... Arm rotation means, Egl, Eg2 ... Rotation means, Eh ... Rotational force transmission means. Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita□”□

Claims (1)

[Claims] A gripping attachment having a means for advancing and retracting and having a gripping means that can be freely expanded and contracted in the radial direction is rotatably attached to the free end of the arm via a shaft rod, and the shaft rod is fixed to all supports at the base of the arm. At the same time, an arm rotation means is provided between the column and the arm, and a rotation means is fixed to each of the shaft rods, and the rotation means are linked by a rotational force transmission means. Transfer device for tire components.