JP3678514B2 - Tire supply method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tire supply method and apparatus for continuously and automatically supplying to equipment for processing and inspecting tires, for example, retreaded tire manufacturing equipment.
[0002]
[Prior art]
Conventionally, when supplying tires stored in storage locations such as warehouses to equipment that processes and inspects tires, such as retreaded tire manufacturing equipment, workers roll the tires and move from the storage location to the location where the target equipment is located. Also, bring the truck for transporting tires to the storage location, stack the tires on the truck by hand, transport to the place with the desired processing equipment, and then manually lower the stacked tires on the truck again. Or, it was transported and moved using a three-dimensional stock conveyor device with automatic loading and unloading.
[0003]
Further, in order to improve the workability of the tire loading work on the transport vehicle, the tire loading device is provided with a tire mounting portion and can be driven by driving wheels, and is provided and mounted on the tire mounting portion. Tire transport means capable of reciprocating in the forward and backward directions of lowering the tire, and moving the tire transport means in the forward direction, and at the same time, the main body of the apparatus moves backward at substantially the same speed as the tire transport means. A tire loading device provided with a control means for driving the drive wheels is known (Japanese Patent Laid-Open No. 4-353038).
[0004]
[Problems to be Solved by the Invention]
However, although the tire processing / inspection equipment itself, such as retreaded tire manufacturing equipment, has been automated, the supply of tires, such as the transportation and movement of tires, is almost always done manually. Currently. There is also a tire supply device that is transported and moved using the above-mentioned three-dimensional stock conveyor device with automatic carry-in / out, but it is expensive and large-scale, and it is not possible to lay such a device easily and economically. It was not practical to see.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a tire supply method and an apparatus for supplying tires that are continuous and automated with a simple mechanism and require no manual labor.
[0006]
[Means for Solving the Problems]
The present inventors have earnestly researched a tire supply method and an apparatus that are practical from an economical point of view and can be automated and continuous with a simple mechanism and without requiring manual labor. The present invention has been completed.
[0007]
That is, the present invention relates to a tire supply method for supplying tires to a processing step, a tire storage step of stacking and storing tires on a transport conveyor, and a state in which the tires can be rotated by taking out the stacked tires one by one The present invention relates to a tire supply method such as a base tire used in the manufacture of retread tires, comprising a tire take-out step held in a tire and a tire transfer step for transferring the tire to a processing step in a rotatable state.
[0008]
Further, the present invention is a tire supply device for supplying tires to a processing process, wherein tire storage means composed of a conveyance conveyor such as a gravity conveyor, and stacked tires can be taken out one by one, and the tires can be rotated. The present invention relates to a tire supply device such as a base tire used for manufacturing a retread tire, comprising a tire take-out means for holding the tire in a state and a tire transfer means for transferring the tire to a processing step in a rotatable state.
[0009]
Furthermore, this invention relates to the said tire supply apparatus which has a stacked tire delivery mechanism in the end of conveyance conveyors, such as a gravity conveyor.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The tire supply method and the tire supply apparatus of the present invention are a process for buffing a tread portion of a base tire to be rehabilitated in a tire processing / inspection facility, for example, in the manufacture of a rehabilitated tire that regenerates and reuses a used tire. Examples of the tire supply method and apparatus according to the present invention will be described with reference to the drawings, etc. The present invention is not limited to the embodiments described in these drawings.
[0011]
In the present invention, the tire storage means 1 composed of a transport conveyor used in a tire storage process for stacking tires on a transport conveyor is a stack of tires stacked in 1 to 10 stages, preferably 4 to 5 stages. Any conveyor can be used as long as it is possible, for example, a belt conveyor, but it is preferable to use the gravity conveyor 2 so that it is automatically transferred by its own weight.
[0012]
When the tire 3 is automatically conveyed by its own weight as in the case of using the gravity conveyor 2 or the like, it is preferable to provide a stacked tire delivery mechanism 4 at one end of the conveyance conveyor. The tire 3 is moved from the loading place to the delivery mechanism 4 adjacent to the tire take-out process, and is gradually inclined downward, for example, a downward inclination of 2 to 8 degrees, preferably 6 degrees, so that the stacked tires do not collapse. Is desirable.
[0013]
The stacked tire delivery mechanism 4 provided at one end of the conveyor conveys two sets that move up and down by a fluid pressure cylinder mechanism or the like that can stop the movement of the stacked tire that automatically moves downward due to the weight of the stacked tire. Stoppers 5 and 6.
[0014]
In the present invention, a tire take-out device 7 used in a tire take-out process for taking out stacked tires one by one and holding the tires in a rotatable state includes a tire lifting device 8 and a stacking on the tire lifting device. A single tire feeding device 9 for pulling down tires one by one and a tire holder 10 for holding the pulled tires in a rotatable state are provided.
[0015]
As the tire lifting device 8, a table lifter that rises by one step each time the stacked tires are pulled down one by one can be used. As will be described later, the lift of the table lifter step by step is interlocked with the single tire feeding device 9.
[0016]
As the single tire feeding device 9, a piston rod 12 having a hook-like hook 11 attached to the tip thereof and a cylinder using fluid pressure such as hydraulic pressure, which moves the piston rod back and forth (left and right in FIG. 3). -It is comprised from the piston apparatus 13. The advancing and retreating of the piston rod 12 may be a continuous reciprocating motion, or may be an intermittent reciprocating motion that temporarily stops at the most advanced position or the most retracted position. Further, the piston rod 12 may be advanced and retracted by a mechanical drive using a cam in addition to using the fluid pressure.
[0017]
As described above, the advancement / retraction of the piston rod 12 is configured to be interlocked with the ascent of the tire elevating device 8. That is, when the piston rod 12 starts retreating movement, the hook-shaped hook provided at the tip of the piston rod 12 catches one tire on the tire lifting device 8 and pulls the tire down to the tire holder 10. When the tire is pulled down, the piston rod 12 advances this time, and the hook 11 at the tip thereof is interlocked in synchronism so as not to contact the tire rising by the tire lifting device 8. Thereafter, this operation is repeated until there are no more tires stacked on the tire lifting device 8.
[0018]
Further, the cylinder / piston device 13 may be provided with a swing mechanism so as to swing slightly upward from its horizontal position. In this case, when the hook 11 provided at the tip of the piston rod 12 hooks one tire on the tire lifting device 8 and pulls the tire down to the tire holder 10 by the horizontal retraction movement of the piston rod 12, The piston device 13 swings upward, and the cylinder / piston device moves downward so that the piston rod 12 advances and the hook provided at the tip thereof does not contact the tire rising by the tire lifting device 8. Rocks. Thereafter, this operation is repeated until there are no more tires stacked on the tire lifting device 8.
[0019]
Other aspects of the single tire feeding device 9 include a piston rod provided with a pushing portion at the tip thereof, and a cylinder / piston driven by fluid pressure that moves the piston rod continuously or intermittently. The tire 1 is a tire having a hook-like hook provided at the tip of the piston rod in terms of the reliability of tire feeding. This feeding device is preferable.
[0020]
Further, as another aspect of the single tire feeding device 9, a piston rod having a hook-like hook attached to the tip thereof and a fluid pressure such as hydraulic pressure for moving the piston rod back and forth (left and right in FIG. 3) And a cylinder / piston lifting device that lowers the cylinder / piston device one step at a time. In the case of this embodiment, the tire elevating device 8 is not necessary, and is configured to synchronize and synchronize the advancement / retraction of the piston rod having the hook and the lowering of the cylinder / piston device.
[0021]
As shown in FIG. 3, the tire holder 10 prevents the sliding roller 14 and the tire sliding guide member 15 for the tire to be pulled down smoothly by the single tire feeding device 9 and the pulled-down tire from falling over due to the momentum. It is comprised from the tire suppression member 16 for. The tire slip guide member 15 includes a curved portion above and a vertical portion below the tire slip guide member 15, and the interval between the lower vertical portion of the tire slip guide member 15 and the tire suppression member 16 is wider than the tire width. Are arranged in parallel with each other. Further, in order to alleviate the impact at the time of contact of the tire that has been pulled down, the vertical portion below the tire sliding guide member 15 may be slightly inclined from the vertical direction toward the tire lifting device 8.
[0022]
In the present invention, as the tire transfer means 17 used in the tire transfer process for transferring the tire to the processing process in a rotatable state, any tire transfer means can be used as long as the tire can be transferred to the processing equipment 18 in a rotatable state. Although a tire can be used, it is desirable to provide a tire guide 19 having a gentle slope so that the tire rotates and travels along the transfer path without rolling over.
[0023]
The tire guide 19 is composed of a plate-shaped guide composed of two opposing vertical plates provided at a distance slightly wider than the tire width, or a plurality of opposing bars arranged at a distance slightly wider than the tire width. It consists of a bar-shaped guide. When the plate-shaped guide or bar-shaped guide is opposed to each other at the end of the transfer path, the tire can be supplied in a roll-over state. Further, when the transfer path is bent, the tire transfer direction can be easily changed by the rod-shaped guide having the curved portion. Further, when the transfer distance is short, a plate-shaped guide or a bar-shaped guide provided with an inclination so that the tire does not roll over can be provided only on one side of the transfer path.
[0024]
As another aspect of the tire transfer means 17, when the ground contact surface of the tire is not smooth, the ground contact portion may be self-propelled to a processing facility as a roller conveyor having a gentle slope. Moreover, you may make it convey with a belt conveyor.
[0025]
Next, the operation of the tire supply device of the present invention will be described.
The tires are first stacked on the conveyor for 1 to 10 stages, preferably 4 to 5 stages. In order to stack a large number of tires, a tire loading device such as that described in JP-A-4-353038 can be used. The stacked tires are stored on a transport conveyor, transported on the conveyor, and stacked tires are placed on the tire lifting device 8.
[0026]
The uppermost tire of the stacked tires placed on the tire lifting / lowering device 8 is pulled by the hook 11 of the piston rod 12 of the single tire feeding device 9 as the piston rod 12 retreats. While sliding, it slides on the sliding roller 14 and the tire sliding guide member 15 and is pulled down by the tire holder 10. When the tire is pulled down, this time the piston rod 12 moves forward, and the forward and backward movement of the piston rod 12 and the tire lifting device 8 are prevented so that the hook portion at the tip thereof does not contact the tire rising by the tire lifting device 8. The ascending movement is synchronized and synchronized. Thereafter, the tires stacked on the tire lifting device 8 are pulled down one by one, and this operation is repeated until there are no more tires stacked on the tire lifting device 8.
[0027]
When there is no tire stacked on the tire lifting device 8, the stopper 5 is lowered by the cylinder / piston mechanism or the like, and the stacked tire locked between the stopper 6 and the stopper 5 is self-propelled so that the tire lifting device is moved. 8 is conveyed to the top. At this time, the stopper 6 is at the stop position so that the next stacked tire does not flow. When the conveyance is completed, the stopper 5 is raised by the cylinder piston mechanism or the like and returned to the stop position. Then, this time, the stopper 6 is lowered from the stop position by the cylinder piston mechanism or the like, and the stacked tire stopped by the stopper 6 is self-propelled and stops at the stopper 5. When stopped, the stopper 6 is raised by the cylinder piston mechanism or the like and returned to the stop position. Thereafter, this operation is repeated.
[0028]
The tire held in the tire holder 10 in a rotatable state is guided by a tire guide 19 having a gentle inclination and travels to the processing equipment 18.
[0029]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the supply of the tire to a processing / inspection equipment can be continued and automated, and a compact tire supply apparatus can be provided at low cost without requiring manpower. Moreover, since the tire supply device of the present invention is configured with a simple mechanism, the occurrence of failure is extremely low.
[0030]
In addition, the number of tires can be selected according to the production lot and transportation lot, and if tires are stacked in advance in the order of the production plan on the conveyor, tires will be supplied in that order. Therefore, it is possible to work efficiently in a tire processing / inspection facility.
[Brief description of the drawings]
FIG. 1 is a side view of tire storage means and tire take-out means of a tire supply device of the present invention.
FIG. 2 is a plan view of the tire supply means of the present invention.
FIG. 3 is a cross-sectional view taken along line XX of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tire storage means 2 Gravity conveyor 3 Tire 4 Stacked tire delivery mechanism 5, 6 Stopper 7 Tire take-out device 8 Tire lifting device 9 Tire single feed device 10 Tire holder 11 Hook 12 Piston rod 13 Cylinder / piston device 14 Roller 15 Tire slip guide member 16 Tire suppression member 17 Tire transfer means 18 Processing equipment 19 Tire guide

Claims (5)

In a tire supply method for supplying tires to a processing step, a tire storage step for stacking and storing tires on a transport conveyor, and a tire removal step for taking out the stacked tires one by one and holding the tires in a rotatable state And a tire transfer step of transferring the tire to a processing step in a rotatable state. A tire supply device for supplying tires to a processing process, comprising: a tire storage means comprising a conveyor, a tire take-out means for taking out the stacked tires one by one, and holding the tires in a rotatable state; A tire supply device comprising tire transfer means for transferring to a machining process in a rotatable state. The tire supply device according to claim 2, wherein the conveyor is a gravity conveyor. The tire supply device according to claim 2 or 3, wherein the conveyor has a stacked tire delivery mechanism at one end thereof. The tire supply device according to any one of claims 2 to 4, wherein the tire is a base tire used for manufacturing a retread tire.

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