JP2698032B2 - Automatic loading / unloading method and device for base tire - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to an extracting method and an apparatus therefor.

[0002]

2. Description of the Related Art In the manufacture of a corrected tire in which a tread surface of a used tire (base tire) is scraped, a tread is stuck and vulcanized, it is necessary to mount the base tire on a buffing machine and take it out. When setting the tires on the buffing machine, the worker holds the base tires, lifts them with the lifter etc. provided on the buffing machine, sets the base tires on the rim, and when removing, the worker supports the base tires while holding the base tires. It was necessary to descend from the front via a lifter or the like.

[0003]

The conventional manual loading and unloading of the base tire has been quite a heavy labor since the base tire has a considerable weight, and it has been a difficult operation. Further, when trying to automate the loading and unloading of the base tire using a robot or the like, it is difficult to perform complicated movements because the gate-shaped frame of the buffing machine is a fixed type.

Further, even if the outer size of the base tire is the same, the degree of abrasion of the tread surface of the base tire is different, so that the centering of the center of the bead and the center of the rim of the buffing machine by grasping the outside of the base tire is performed. Was very difficult. Therefore, the present invention provides a method for loading a base tire into a buffing machine.
It is an object of the present invention to provide a method and an apparatus capable of saving labor by automating take-out and performing centering on a buffing machine reliably.

[0005]

According to a first aspect of the present invention, there is provided a method of mounting a base tire on a centering device having a centering pin which is detachable from a bead portion, and thereafter, the centering device is moved substantially vertically. A step of centering by suspending the base tire by the centering pin by changing the posture to a posture, and then holding the tread portion of the base tire in a state of being centered by a loading machine having a holding arm at the top and bottom, and Then, the loading machine is moved toward the buffing machine, and the buffing machine having the pair of bead holding rims is loaded with the base tire being centered and buffed, and then the buffing machine is moved to a take-out position. To remove the base tire from the bead holding rim by pushering and to receive the base tire A step of transferring the extraction device with and is characterized in that it consists of.

According to a second aspect of the present invention, a supporting surface for mounting and supporting a base tire is provided with a centering pin which is detachable from a bead portion of the base tire. A centering device capable of changing the posture to a substantially vertical posture and a vertical posture to suspend the tread, and an upper and lower holding pin for vertically holding a tread portion of a base tire maintaining the centering state in the substantially vertical posture , A loading machine that can reciprocate toward the machine, a bead holding rim that can freely reciprocate between a loading position and an unloading position, holds the loaded platform tire in a substantially vertical posture, and rotates around a horizontal axis. A buffing machine having a buffing body, and a pusher ring for pressing the base tire from the side surface at a take-out position to separate from the bead holding rim; and Comprising a die table to receive a tire, and is characterized in that it comprises a and a take-out device for rolling discharging base tire from the table.

[0007]

When the base tire is placed sideways on the support surface in the horizontal position, the centering pin provided on the support surface is engaged with the bead portion of the base tire. When the support surface of the centering device is raised from the horizontal position to the substantially vertical position, the base tire is suspended and centered by the centering pin, and the base tire is pinched by the cooperation of the upper holding pin and the centering pin of the loading machine, and then Then, when the base tire is supported by the lower holding pin of the thrower and the centering pin is released, the base tire is attached to the upper and lower holding pins.

[0008] Then, the loading machine is moved toward the buffing machine, and the base tire is set on the bead holding rim of the buffing machine.
The tread surface is buffed by a buff body while rotating the base tire around its axis. On the other hand, the loading machine is moved toward the centering device in preparation for loading the next base tire.

When a predetermined buffing process is completed by the buffing machine, the buffing machine moves toward the take-out position, and when the side surface of the base tire is pressed by the pusher ring at the take-out position, the base tire comes off the rim. Is taken down as a guide on a table of a take-out device, and is rolled and carried out to the next process via the table.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1 showing the overall configuration in a plan view, reference numeral 1 denotes a transport roller conveyor, 2 denotes a centering device, 3 denotes a loading machine, 4 denotes a buffing machine, and 5 denotes a take-out device.

As shown in FIG. 2, the transport roller conveyor 1 has rollers 7 arranged in a row in the upper part of a machine frame 6 so as to be inclined downward in the transport direction, and a lifter device 8 is incorporated therein. The lifter device 8 includes an elevating operation of the elevating cylinder 9 and the vertical guide 1.
A support 11 for the base tire T which moves up and down between the rollers 7 at 0 is provided, and the base tire T supported by the support 11 in a horizontal state is applied to the roller 7.

The centering device 2 is arranged in series on the unloading side of the transport roller conveyor 1 and has a support surface 12 on which the base tire T transported from the conveyor 1 is placed. The support surface 12 has rollers 13 arranged in rows on the left and right sides thereof, and has a downward inclination that is slightly larger than the downward inclination of the transport roller conveyor 1. It is movably supported.

The support surface 12 of the centering device 2 has a pair of left and right centering pins 16 and a pair of right and left stopper pins 17 as shown in FIG.
Numeral 6 comprises a pin portion 16A and a hook portion 16B. The hook portion 16B is rotatable about the pin portion 16A while being able to protrude and retract with respect to the support surface 12, and a driving body 18 for this is provided on the lower surface. ing.

The stopper pin 17 is the centering pin 1
6, it is disposed on the back side of the conveyance, and can be moved out of the support surface 12 by the driving body 19. The support surface 12 has a horizontal axis 1 between a downward inclination on which the base tire T is mounted and a substantially vertical posture.
The position can be freely changed with the fulcrum 5 as a fulcrum, and for this purpose, a driving body 20 represented by a telescopic cylinder is provided.

The loading machine 3 comprises a centering device 2 and a buffing machine 4
And a traveling platform 22 which can reciprocate along a guide rail 21 between the traveling platform 22 and the traveling platform 22 as shown in FIGS.
Are provided with upper and lower holding pins 23 and 24. The upper and lower holding pins 23 and 24 are each a pair of two,
As shown in FIG. 4, there is provided a rack rail 26 which is advanced and retracted by the expansion and contraction operation of the telescopic cylinder 25, and a pinion 27 which meshes with the rack rail 26. The pinion 27 is provided with a swing arm 28, 28, upper and lower holding pins 23 and 24 are provided in a protruding manner so that the base tire T can be held from above and below.

Here, the significance of the combination of the centering device 2 and the charging machine 3 and the operation thereof will be described. Since the base tire T is a used tire, it is not perfectly circular and its outer diameter is not constant. Therefore, if the outer shape is maintained, the center position of the bead portion is not constant. On the other hand, if the bead portion is held from the inside, the center position becomes constant, but the rim cannot be mounted when the bead is inserted into the buffing machine.

Therefore, the bead portion is held by the centering device 2 to keep the center of the tire, and the delivery is performed by the input device 3 so as to hold the outer shape. That is, the base tire T carried from the conveyor 1 is transferred to the support surface 12 of the centering device 2 and received by the stopper pins 17 protruding from the support surface 12.

The centering pin 16 provided inside the bead portion of the base tire T is raised. The centering pin 16 is provided at a position where the center of the bead coincides with the center of the centering device 2 in a state where the bead portion of the base tire T is hooked on the centering pin 16. The stopper pin 17 is lowered, and the base tire T is erected until the support surface 12 of the centering device 2 becomes vertical with the base tire T being hooked at the bead part by the centering pin 16, and at this time, the base tire T is suspended at the bead part. And centered.

[0019] followed by, caught in degrees Ntaringupin 16
The upper part of the center tire T that has been centered
Hold down with the upper holding pin 23, and
By sandwiching the base tire T between the holding pins 23, the center position of the base tire T does not shift.

On the other hand, the centering pin 16 is
After that, the support surface 12 is returned to the previous position for the next tire. Referring to FIGS. 5 to 7, the buffing machine 4 is illustrated. The buffing machine 4 includes a gate-shaped frame 29, and the frame 29 is placed at a throw-in position by driving means such as an air cylinder, a hydraulic cylinder, a ball screw, and a chain. And the take-out position.

The portal frame 29 is provided with a bead holding rim 30 on the stroke side and a bead holding rim 31 on the drive side facing each other. The rim 31 is rotated by a drive motor 32 and held between the two rims 30, 31. Can be rotated. Further, a pair of left and right side buff bodies 33 are provided on the upper part of the gate-shaped frame 29, and a buff body 34 for cutting a tread portion is provided.

The buff body 34 is provided with a movable base 35, which can be moved forward and backward with respect to the gate-shaped frame 29 by a motor 36, whereby the cutting outer diameter of the tread portion of the base tire T can be determined. . A movable blade 35 has a rotary blade 38 driven by a motor 37 and a rotary blade 38.
Fixed blade 39 that cuts the tread in advance to reduce the burden of
The rotary blade 38 can move forward and backward in the X and Y axes by servomotors 40 and 41, and the fixed blade 39 can move forward and backward in the X and Y axes by the servomotors 42 and 43. The movement allows the tire tread portion to be cut into a required shape.

As shown in FIG. 9, a pair of bead holding rims 30 and 31 are provided with a pusher ring 45 which moves forward and backward by a cylinder 44, and presses the side of the buffed base tire T to push the base tire from the rim. Let off
In the take-out device 5, reference numeral 46 denotes advance / retreat guide means. Referring to FIG. 8, the take-out device 5 includes a cylinder 4
The table 48 is provided with a table 48 for receiving the base tire T by advancing and retreating by the 7, and a kick-out roller 49 for rolling and carrying out the base tire T received by the table 48 to the next process.

That is, when the buffed base tire T reaches the take-out position by moving the portal frame 29 to the take-out position, the table 48 advances and waits below the base tire T. Then, when the holding rim is retracted and the base tire T separates from the rim by the pusher ring 45, the tire T descends to the table 48 in a substantially upright state while being guided by the pusher ring 45. Is rolled and carried out to a conveyor (not shown) provided in the yard.

[0025]

As described in detail above, according to the present invention, in the buffing process in the manufacture of a corrected tire, the base tire can be automatically loaded in a state where the base tire is centered on the buffing machine, and after the buffing process, it is carried out to the next process. Therefore, it can be automatically taken out from the buffing machine, and labor by manual labor can be saved, and productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing the entire device of the present invention.

FIG. 2 is an elevation view showing a relationship between a centering device and a charging machine.

FIG. 3 is a plan view of the centering device.

FIG. 4 is an elevation view of a charging machine.

FIG. 5 is a front view of the buffing machine.

FIG. 6 is a side view of the buffing machine.

FIG. 7 is a plan view of the buffing machine.

FIG. 8 is an elevational view showing a relationship between a buffing machine and a take-out device.

FIG. 9 is an elevational view of the pusher ring.

[Explanation of symbols]

 2 Centering device 3 Feeder 4 Buffing machine 5 Take-out device 12 Support surface 16 Centering pin 23 Upper holding pin 24 Lower holding pin 34 Buffing body 45 Pusher ring 48 Table

Claims (2)

(57) [Claims] 1. A step of placing a base tire on a centering device having a centering pin detachable from a bead portion, and thereafter, changing the posture of the centering device to a substantially vertical posture and suspending the base tire by the centering pin. Step of lowering and centering, and thereafter, the step of holding the tread portion of the base tire in a state of being centered by the loading machine having the holding arms above and below from above and below, and then moving the loading machine toward the buffing machine, A step of buffing while loading the base tire in a centered state on a buffing machine having a pair of bead holding rims, and thereafter,
Moving the buffing machine to a take-out position, detaching the base tire from the bead holding rim by pushering, and transferring the base tire to a take-out device having a table for receiving the base tire. -How to remove. 2. A support surface for mounting and supporting a base tire,
Comprising a disengageably centering pin bead portion of該台tire, the posture changeable centering device postures substantially vertical posture before described to hang the by base tire through the centering pin, in the substantially vertical position Centering state
Hold the tread of the maintained tire from above and below
Equipped with a lower holding pin, a loading machine that can reciprocate toward the buffing machine, and can freely reciprocate between the loading position and the unloading device.
Equipped with a bead holding rim and a buff body that hold the thrown base tire in a substantially vertical posture and rotate around the horizontal axis, and a pusher ring that presses the base tire from the side at the removal position and separates from the bead holding rim Buffing machine
An automatic loading of a base tire, comprising: a table arranged at a take-out position of the buffing machine for receiving the separated base tire, and a take-out device for rolling and discharging the base tire from the table.・ Ejection device.