JPS6222882B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a tire sorting device, and more particularly to a tire sorting device that reads a barcode (discrimination section) formed on the surface of a tire.

[Prior art]

Conventionally, in this type of tire sorting device, tires that have been conveyed horizontally by a conveyor are placed on a tire rotation device, and while being rotated by the tire rotation device, markings are carved on the surface of the tire. The barcode (discriminator) was read by an optical sensor installed on the tire rotating device to sort the tires.

However, the sensors of conventional tire sorting devices like the ones mentioned above are read without contact with the tires and from a fixed distance away, so depending on the size of the tire, the sensor may be moved to the barcode position. However, a device for accurately positioning the barcode is required, which makes the device complicated and makes it difficult to accurately read barcodes in a stable state.

[Purpose of the invention]

This invention was devised by focusing on the conventional problems, and its purpose is to maintain a constant distance between the barcode engraved on the tire and the sensor. Therefore, it is an object of the present invention to provide a tire sorting device that has a simple structure, can accurately read barcodes in a stable state, and has significantly improved reading reliability.

[Structure of the invention]

In order to achieve the above object, the present invention includes a stopper/drive roller and a copying roller that rotatably position a tire, and a copying roller that moves together with the copying roller.
and a crimping means for crimping the vicinity of the determined tire determination part that has been positioned, and a sensor that is provided integrally with the crimping means and that always discriminates the tire determination part from a constant position at a predetermined interval. The gist of this paper is that it is composed of the following.

[Embodiments of the invention]

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

1 to 3 show a side view, a front view, and a plan view of a tire rotating device embodying the present invention, and this tire rotating device is used for transporting tires from a tire vulcanizer (not shown) to a warehouse. installed in the process.

The tire rotation device has a tire W mounted on a support frame 2 mounted at a constant angle of inclination on a pillar 1.
A carry-in/take-out conveyor 3 is installed to transfer the goods horizontally.

At the unloading end of the loading/unloading conveyor 3, there are two stopper/driving rollers 4a that support the tips of the transferred tires W and are rotationally driven.
4b is provided. These stoppers/driving rollers 4a, 4b are located at the tip of the support frame 2.
It is attached to frames 5a and 5b that are rotatably attached in the width direction of the loading/unloading conveyor 3, and these frames 5a and 5b are connected to cylinders 6a and 6b (air cylinders) installed on the sides of the support column 1. is connected to.

Therefore, the stoppers and driving rollers 4a and 4b attached to the frames 5a and 5b are connected to the cylinder 6.
It is configured to move in and out while turning in the lateral direction with respect to the conveyance surface of the tire W due to the expansion and contraction action of a and 6b.

Further, the stopper/driving rollers 4a and 4b are rotatably driven by a rotary drive device (not shown).

Next, approximately at the center of the support frame 2, an elevating frame 8 is provided which can be raised and lowered in the vertical direction around a support shaft 7 installed between the support frames 2. This elevating frame 8 is connected to an elevating cylinder 9 attached to the lower side wall of the support column 1.

On the elevating frame 8, two support rollers 10 (free rollers) that support the bottom surface of the tire W,
While pressing the inner surface (bead part X) of the tire W,
and two proximate copying rollers 11a, 1 clamped by the stopper/driving rollers 4a, 4b.
1b, and a guide roller 12 (free roller) that rotates in a direction perpendicular to the direction in which the tires W are transported.

As shown in FIG. 3, the copying rollers 11a and 11b are rotatably supported on a U-shaped frame 13 via support brackets 14a and 14b, and the frame 13 is supported by a pressing cylinder 15. Stoppers and driving rollers 4a, 4
It is slidably placed on the b side.

Note that if the carry-in/take-out conveyor 3 is installed in a horizontal state, a rotation drive device is required.

Further, the number of support rollers 10 and guide rollers 12 is not limited.

Next, a tire sorting device 20 that reads a barcode K (discriminator) engraved near the bead portion X at the bottom of the tire W is installed on the lower surface of the frame 13 on which the copying rollers 11a and 11b are installed. .

As shown in FIGS. 4 to 6, this tire sorting device 20 includes a barcode K (discrimination section) of a tire W.
It is composed of a crimping means 21 that crimps and holds the tire W, and an optical (laser) sensor 22 that detects the barcode K (discrimination section) at a predetermined distance from the barcode K (discrimination section) of the tire W. ing.

The pressure bonding means 21 connects a linear bearing 2 to a guide rod 23 vertically installed on the lower surface of the frame 13.
4 is slidably attached, and a stopper roller 26 is rotatably attached to the side of this linear bearing 24 via a bracket 25. A pressing cylinder 28 is fixed to the frame 27 that supports the guide rod 23, and the tip of the piston rod 29 of the pressing cylinder 28 is connected to the linear bearing 24 via a shock absorbing device 30 such as a spring.

On the other hand, the sensor 22 is a light projector 22a.
and a light receiver 22b, and the linear bearing 2
It is integrally attached to the side wall of the bracket No. 4.
Therefore, the tire W by the stopper roller 26
The crimping position (near the bead part X) and the reading position by the sensor 22 on which the barcode K (discrimination part) is engraved are always constant.

In FIG. 2, 31 is a tire inch determination sensor (reflective photoelectric switch, etc.) attached to the side of the sensor 22, which can be used to measure the inner diameter of the bead X or to install a paint device above the tire W. Then, the white ribbon near the bead portion X is painted.

In addition, in the above embodiment, the loading/unloading conveyor 3
is fixed and the elevating frame 8 is raised, but the elevating frame 8 may be fixed and the loading/unloading conveyor 3 is raised.

Further, in the case of the above embodiment, a barcode K (discrimination part) is engraved on the lower surface side of the tire W, and in order to read this barcode K (discrimination part), the pressure bonding means 21 and the sensor 22 are placed on the lower surface side of the tire W. However, if a barcode K (discrimination part) is engraved on the surface side of the tire W, the pressure bonding means 21 and the sensor 22 are installed above the tire W and the tire W is moved up and down. You may also let them do so.

Next, the operation of the above embodiment will be explained.

First, the stopper/driving rollers 4a and 4b provided at the discharge end of the carry-in and carry-out conveyor 3 are operated perpendicularly to the conveying surface via cylinders 6a and 6b.

From this state, the tire W is transferred from the input side (right side in FIG. 1) of the loading/unloading conveyor 3 while sliding.

The transported tire W comes into contact with the two upright stopper/driving rollers 4a and 4b and is stopped.

Next, the lifting frame 8 is moved through the lifting cylinder 9.
When the wheels are raised, the tires W installed on the loading/unloading conveyor 3 are moved by the two support rollers 10.
and the guide rollers 12 for carrying in and
It is lifted onto the carry-out conveyor 3.

When the tire W is lifted by the support roller 10 and the guide roller 12, the copying rollers 11a and 11b located inside the tire W are moved via the pressure cylinder 15 to the stopper/driving rollers 4a and 4b.
side, and parts of the outer circumferential surface and inner circumferential surface (bead portion X) of the tire W are clamped at approximately three points.

Next, when the stopper/driving rollers 4a, 4b are rotated by a rotary drive device (not shown), the tire W starts rotating, and the copying rollers 11a, 11b are close to the stopper/driving rollers 4a, 4b.
It rotates under a force close to a three-point load. Therefore, the center of the tire W is centered at the center of the carry-in/take-out conveyor 3 (the center of the stopper/driving rollers 4a, 4b and the copying rollers 11a, 11b).

In this manner, the tire W is centered and is rotating smoothly, and then the tire sorting device 20 starts sorting the tire W.

The tire W sorting work is carried out while the tire W on which the barcode K (discriminator) is engraved is being rotated at a constant speed by the above-mentioned rotating device. The reading part of K (discriminating part) and the sensor 22 are already positioned in a state where the bead part X of the tire W is clamped by the copying rollers 11a and 11b as described above.

Furthermore, the bead portion X of the tire W serves as a stopper/driving roller 4a, 4b and copying rollers 11a, 11b.
After being clamped by the tire discriminator 20
The sensor 22 is pushed up by a pressure cylinder 28 and positioned via a stopper roller 26 at a pressure-bonding position of the tire W (near the position of the bead portion X).

That is, when the copying rollers 11a, 11b move toward the stopper/driving rollers 4a, 4b, the pressure bonding means 21 and sensor 22 attached to the frame 13 of the copying rollers 11a, 11b also move, and the copying rollers 11a, 11b move in the same way. When the bead portion X of the tire W is clamped, the pressure position of the tire W by the stopper roller 26 and the barcode K
The reading position by the sensor 22 (discrimination part) engraved thereon is inevitably set.

And the barcode K of the rotating tire W
(discrimination unit), the light emitter 22 of the sensor 22
The tires W are sorted by the light receiver 22b and the light receiver 22b.

In addition, in FIG. 1, W1 indicates the size of another tire.

In addition, in this embodiment, the configuration and operation of the tire rotating device and the tire sorting device 20 have been explained, but the tire rotating device can also be used for tire inspection in the tire transport process, trimming, uniformity, etc.
It is of course possible to carry out painting, etc.

〔Effect of the invention〕

The present invention provides a stopper/driving roller and a copying roller for rotatably positioning a tire as described above, a crimping means that moves together with the copying roller and crimps a portion of the positioned tire in the vicinity of a discrimination section, and Since the sensor is provided integrally with the pressure bonding means and always discriminates the tire discrimination section from a fixed position at a predetermined interval, the distance between the barcode engraved on the tire and the sensor can be adjusted. By always maintaining a constant state, barcodes can be accurately read in a stable state with a simple structure, which is effective in significantly improving reading reliability. Moreover, since the structure is simple, it can be manufactured at low cost and maintenance is also easy.

[Brief explanation of the drawing]

Fig. 1 is a side view of a tire rotating device embodying the present invention, Fig. 2 is a front view of Fig. 1, and Fig. 3 is a
Fig. 4 is a front view of the tire sorting device;
5 is a side view of FIG. 4, and FIG. 6 is a plan view of FIG. 4. 4a, 4b... stopper and driving roller, 11
a, 11b...copying roller, 21...pressing means,
22...sensor, W...tire, K...barcode (discrimination section).

Claims (1)

[Claims] 1. A stopper/driving roller and a copying roller for rotatably positioning a tire, a crimping means that moves together with the copying roller and crimps a portion of the positioned tire in the vicinity of the discrimination section, and is provided integrally with the crimping means. What is claimed is: 1. A tire sorting device comprising: a sensor which always discriminates the tire from a fixed position at a predetermined interval;