JPS632849B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a tire rotating device, and more particularly to a tire rotating device that facilitates loading/unloading and chucking of tires.

[Prior art]

Traditionally, tire rotation devices used in the process of transporting tires from a tire vulcanizer to a warehouse are used to (1) place the tire horizontally on a rotating plate or rim in order to rotate the tire in a stable condition; (2) A method in which the tire is rotated while standing on its own using two rotating rollers at high speed, or a method in which the tire is rotated while being supported by rollers, etc. from the left and right sides when rotating at a low speed. A known method is to rotate the inner side (bead portion) of the roller while supporting it with three or four rotating rollers.

However, with conventional tire rotation devices such as those mentioned above, the cycle time for loading and unloading tires is long, tire handling is complicated, and a mechanism to stand up tires that have been transported sideways is required. This has led to problems in that the device becomes more complex, the overall size of the device increases, and the cost further increases. Also, the inside of the tire (bead part)
- In the method of rotating while supported by four rotating rollers, the tire bounces during rotation and becomes unstable, making it impossible to accurately sort and inspect tires, and causing problems such as painting work etc. There was a problem that it could not be done efficiently.

[Purpose of the invention]

This invention was devised by focusing on the conventional problems, and its purpose is to have a simple structure, to stabilize the tire, and to handle it in a centered state, so that the tire can be kept in a stable state. To provide a tire rotating device that can be rotated at a speed of 100 degrees, can efficiently carry in and take out tires, and can be manufactured at low cost without increasing the size of the device itself.

[Structure of the invention]

In order to achieve the above object, the present invention provides guide rollers at the tips of both sides of the loading/unloading route for horizontally placed tires, and clamps the outer peripheral surface of the tire via an expansion/contraction mechanism. A pair of expandable and retractable centering arms are provided for centering the center of the tire, and a bottom portion of the tire is supported in the transport direction between the pair of centering arms, and a transport path for the tire is provided. A plurality of rotating rollers that move in and out of the surface by a lifting means and a plurality of drive rollers arranged in a cross shape with respect to the loading/unloading path surface are arranged, and the rollers are attached to the centering arm. The gist is that a tire rotation drive device is provided on at least one of the guide roller or the drive roller that supports the bottom of the tire.

[Embodiments of the invention]

Embodiments of the present invention will be described below based on the accompanying drawings.

1 and 2 show a plan view and a front view of a tire rotating device embodying the present invention, and this tire rotating device is connected to a tire loading/unloading route It is something that is installed and implemented.

In the tire rotating device, a plurality of drive rollers 3 (four in the embodiment of the present invention) are rotatably disposed via frames 2a and 2b which are constructed in a cross shape on a support pedestal 1.

Further, below the drive roller 3, the support frame 1 is provided.
An elevating frame 5 is installed, which rotates in the vertical direction using a pivot shaft 4 installed on one end as a fulcrum.
A plurality of rotating rollers 6 that rotate in the direction in which the tires W are transported are disposed on the elevating frame 5.

The elevating frame 5 is connected to a piston rod 7 of an elevating cylinder 8 provided at the lower part of the support pedestal 1, and as the elevating cylinder 8 expands and contracts, the upper surface of a rotating roller 6 disposed on the elevating frame 5 becomes a drive roller. It is configured to appear and disappear from the top surface of 3.

A rotation drive device (not shown) is incorporated inside the drive roller 3, and is configured to rotate the tire W in a fixed direction.

On both sides of the tire loading/unloading route A clamping device 10 is provided.

The clamp device 10 has four centering arms 11a, 11b, 11c, and 11d whose base ends are attached to shafts 12a and 12 on the side wall of the support frame 1.
b, 12c, 12d, and is rotatably supported via centering arms 11a, 11b,
As shown in FIG.
are each rotatably mounted.

The above four centering arms 11a, 11
b, 11c, and 11d are connected via an expansion/contraction mechanism 15 so that they can expand and contract simultaneously with respect to the tire W.

The expansion/contraction mechanism 15 includes the shafts 12a, 12b,
4 gears 16a fitted to 12b, 12d,
16b, 16c, 16d, and a drive cylinder 18 that rotates the shaft 12a via a link 17;
It consists of a connecting rod 20 for synchronously rotating the left and right centering arms 11a, 11b and 11c, 11d via rings 19a, 19b mounted on the shafts 12b, 12d.

Gears 16 provided on the shafts 12a and 12b
a and 16b mesh with each other, and the shafts 12c and 1
The gears 16c and 16d provided at 2d also mesh with each other.

Therefore, the two links 19a, 19b provided on the shafts 12a, 12d and the connecting rod 20 connecting them constitute a parallel link mechanism, and the centering arms 11a, 11b, 11c, 11
d is scaled synchronously.

Next, the operation of the embodiment of the invention as described above will be explained.

First, centering arms 11a, 11b, 1
1c and 11d are in the expanded state (the state shown by the dashed line in FIG. A tire W is conveyed from the direction of the arrow in FIG. 1 and placed on the roller 6. When the tire W is placed on a predetermined position on the rotating roller 6, a detection device such as a phototube (not shown) detects this, and the drive cylinder 18 starts to contract.

Then, the piston rod 1 of the drive cylinder 18
The ring 17 connected to the ring 8a rotates in a predetermined direction, and at the same time, the shaft 12a equipped with the gear 16a starts rotating clockwise.

When the gear 16a rotates via the shaft 12a, the gear 16b of the shaft 12b that meshes with the gear 16a rotates counterclockwise, and the centering arms 11a and 11b supported by the shafts 12a and 12b each rotate the tire W.
1, in the direction indicated by the dashed line and the solid line in FIG.

At the same time, the centering arms 11c and 11d on the opposite side are also connected to the first
The four centering arms 11a, 11b, 11 rotate in the direction shown by the solid line from the dashed line in the figure.
The tire W placed on the rotating roller 7 is clamped by the guide rollers 14 provided at the tips of the rollers c and 11d.

When the tire W is clamped, even if the tire W is shifted from the longitudinal center of the tire loading/unloading path X in the left-right direction, the four centering arms 11a, 11b, 11c, and 11d simultaneously move in the contraction direction. Since it operates (clamps the tire W in a so-called crab clamp state), the center of the tire W is
It is centered at the longitudinal center of the tire loading/unloading path X.

Next, when the elevating frame 5 equipped with the rotating roller 6 is lowered from the above state via the elevating cylinder 8, the tire W is clamped to the centering arms 11a, 11b, 11c, and 11d and is rotatable. It is placed on the drive roller 3 in this state.

Then, the drive roller 3 is rotated by a rotary drive device (not shown), and the tire W is moved to the guide roller 14.
It rotates along the

In addition, in the above embodiment, the rotational drive device is built into the drive roller 3 to rotate the tire W, but the centering arms 11a, 1
The tire W may be rotationally driven by being incorporated into a guide roller 14 provided at the tip of each of the tires 1b, 11c, and 11d.

Moreover, as an application example of the tire rotating device as described above, it can be applied to the following.

(a) A tire trimming conveyor is used as a rotating device to rotate tires at high speed and trim tire vents with cutters.

(b) Installed along the tire loading/unloading route and applied during tire inspection. In this case, tire
It is applied to equipment that inspects tires while rotating them, such as line inspection equipment and internal/external surface inspection equipment.

(c) Applies to tire size reading devices. That is, the barcode K engraved on the front and back surfaces of the tire.
It is used as a device that reads and sorts tires while rotating the tires.

(d) Furthermore, the tire rotating device of the present invention can be applied not only to tires after vulcanization, but also as a device for rotating green tires, such as green tire painters and green tire inspections.

As described above, the present invention provides guide rollers at the tips of both sides of the loading/unloading route for horizontally placed tires, and clamps the outer peripheral surface of the tire via an expansion/contraction mechanism to the center of the loading/unloading route. A pair of expandable and retractable centering arms are provided for centering the tire, and the bottom part of the tire is supported in the conveyance direction between the pair of centering arms, and the tire is placed on the loading/unloading path surface of the tire. On the other hand, a plurality of rotating rollers that are moved in and out by an elevating means, and a plurality of drive rollers arranged in a cross shape with respect to the loading/unloading path surface are arranged,
Since a tire rotation drive device is provided on at least one of the guide roller attached to the centering arm or the drive roller that supports the bottom of the tire, the tire can be stabilized and clamped in a centered state with a simple configuration. This has the advantage that the tires can be rotated in a stable state, the tires can be loaded and unloaded efficiently, and the device itself can be manufactured at low cost without increasing its size.

Furthermore, since the configuration is simple, maintenance is also easy. Further, the present invention provides at least one of the guide roller attached to the centering arm or the drive roller that supports the bottom of the tire.
By providing a tire rotation drive device, it is possible to rotate a clamped and centered tire in a stable state.For example, a tire trimming conveyor can be applied as a rotation device to rotate the tire at high speed and cause a tire vent. It is also possible to perform trimming with a cutter, and it is also possible to install it in the middle of the tire import/export route and apply it when inspecting tires. In this case, tire line inspection equipment, internal and external surface inspection equipment, etc. It can be applied to a device that inspects tires while rotating them, and can also be used as a device that inspects tires while rotating them, when sorting tires by reading barcodes engraved on the front and back surfaces of tires. Moreover, it can be applied not only to tires after vulcanization, but also as a green tire rotation device for green tire painters, green tire inspections, etc.

Therefore, the rotating device of the present invention has the effect of being applicable not only to tire centering but also to a wide range of other uses.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a tire rotating device embodying the present invention, and FIG. 2 is a front view thereof. 3... Drive roller, 14... Guide roller, 1
5... Expansion/contraction mechanism, 11a to 11d... Centering arm, W... Tire, X... Tire loading/
Export route.

Claims (1)

[Claims] 1. On both sides of the loading and unloading route for horizontally placed tires,
A guide roller is provided at the tip, and a pair of expandable and contractible centering arms are provided that perform centering with respect to the center of the loading/unloading route while clamping the outer peripheral surface of the tire via an expanding and contracting mechanism. Between the centering arms, a plurality of rotating rollers that support the bottom of the tire in the conveyance direction and that move in and out of the tire loading/unloading path surface by a lifting means, and and a plurality of drive rollers arranged in a cross shape, and a tire rotation drive device is provided on at least one of the guide roller attached to the centering arm or the drive roller supporting the bottom of the tire. A tire rotating device characterized by: