JPH04146107A - Holding, expanding and cooling device of vulcanized tire - Google Patents

Abstract

PURPOSE:To contrive simplification in exchanging operation of rims, by a method wherein the title tire is united with a rim holding, expanding and cooling device main body through a detachment device which is capable or remote handling operation. CONSTITUTION:A tapered surface 29d is provided on a rim holder 29 to which an outside rim 4b is fitted. A U-shaped key 31 going in and out by a cylinder is incorporated into a slide block 30 having a tapered surface 30a fitting over the tapered surface 29d and the same is either locked or released by the going- in-or-out of the key 31. A tapered surface 46a is provided on a rim holder 46 to which an inside rim 4a is fixed and a tapered hole 27e of the inside shaft 27 is fitted over the tapered surface 46a. A coil spring 44 is inserted between a cylinder cap 45 fixed to the inside shaft 27 and piston 43 and when a pressure fluid is fed through a hole 27d, a piston rod 43a is pulled in and a steel ball 48 becomes free. When pressure of the pressure fluid is released, the steel ball 48 is extruded outside by a piston rod 43a through an action of the coil spring 44, fitted into a ball groove 27f and locked. With this construction, exchange of rims become easy.

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention provides a PCI (industrial field of application) for cooling the swelling part of a vulcanized tire.
PO5T CURE INFLATOR), especially regarding PCI that facilitates rim replacement.

(Prior art) For tires that use nylon cord or the like as a strength member, compressed gas is injected into the uncooled vulcanized tire taken out from the vulcanizer to inflate the tire. PCI is used for cooling. In conventional PCI, the inner rim (closer to the center of rotation of the PCI body) is P
The outer rim of the CI main body is bolted to a movable frame that slides in a direction perpendicular to the centerline during rotation by a fluid pressure cylinder via a rim spacing adjustment screw or spacer,
The inflation reaction force of the tire is held by a bayonet lock mechanism installed so as to pass through the rim center space through both rims, and the uncooled tire sent out from the vulcanizer is After releasing the bayonet locking mechanism and moving the outer rim away using the hydraulic cylinder,
The tire is placed on one rim via a conveyor device or by an unloader attached to the vulcanizer or a loader attached to the PCI, and after one gripping bulge is completed, the tire is reversed and fed to the other set of rims. Many methods of evacuation were used.

(Problem to be Solved by the Invention) PCI is generally capable of handling tires with multiple types of bead diameters by replacing the rims, but rim replacement is done manually within the PCI due to poor footing. In addition, there are several rims even for passenger cars, and in addition, there are heating medium piping for the vulcanizer below the PCR, making it a dangerous operation.

(Means for solving the problem) 1. Pct the rim through a remotely controllable attachment/detachment mechanism.
Assemble it into the main body.

2. Provide a means for carrying the rim with &ll removed into the PCI main body and carrying it out from the same main body.

3. In the case of a PCI with a loader, the loader is also used as a means for carrying out the rim.

(Function) When taking out the rim for multiple flights, first bring both rims close together, then release the upper rim assembly and place it on the lower rim. Next, the lower rim is grasped directly or indirectly by the rim unloader means, the lower rim assembly is released, and finally the rim unloader means is used to hold the lower rim to a position where it is easy to hang the rim outside the Pct main body. Move the rim.

The rim to be used next is carried in and assembled in the reverse order to the above.

(Example) First, the configuration of an example will be described with reference to FIGS. 1 to 5. This PCI can be roughly divided into two sets of gripping mechanisms 2
PCI main body 1 including a common frame 3.2 pairs of rims 4,
It is comprised of a control device (not shown) including a loader 5, a discharge conveyor 6, and sensors for controlling these.

In addition, T is a vulcanized tire, Ta is a vulcanized tire to be processed next, and 7 is an unloader attached to a vulcanizer (not shown).

The main body frame 11 having shaft portions 12 at both ends has side columns 14
A beam 15 is integrated with the common frame 3 via a bearing 13, and is rotatably supported by the common frame 3 via a bearing 13. A chain wheel 18 fixed to the output shaft of a reversing motor 19 bolted to the frame 3
A chain 17 is attached to each end, and the body frame 11 is configured to be reversed in a vertical plane by the action of the motor 19.

When the X-X line in FIG. 3 is the y-axis, and the Y-Y line is the y-axis, the outer ring is installed inside the main body frame 11 by a spacer 21 and a retainer 23 so that the Z-axis is the turning center line in FIG. A gear 24 is fixed by known means to one end of the outer shaft 20, which is rotatably incorporated by a plurality of hair rings 22 to which a gear is fixed, and is fixed to the output shaft of a motor 26 bolted to the main body frame 11. The gear 25 is the gear 2
A flange 27a is provided at one end of the inner shaft 27 and has a male thread that engages with a female thread provided on the inner side of the outer ring 20. When the rim 4a is assembled, an arm 27b has a ventilation hole 27c for supplying and discharging compressed gas inside the tire, and has one end fixed to the 7-land 27a.
One end of a rotation stopper 28 is fixed to the other end, and the other end of the rotation stopper 28 is slidably inserted into a guide bush (not shown) built into the main body frame 11, and is rotated by the action of the motor 26. When the outer ring 20 is turned, the inner rim 4
The structure is such that a moves in and out in the Y-Y line direction.

On the other hand, the rim holder 29, which has a flange 29a at one end to which the outer rim 4b is attached, is provided with a groove 29b in the middle that engages with gripping fingers 37a and 40 of the loader 5, which will be described later.
A tapered surface 29d is provided at the other end.

The slide block 30, which has a tapered surface 30a mating with the tapered surface 29d, incorporates a 0-character key 31 that enters and exits with a cylinder (not shown), and when the 1-character key 31 is in the on state, the 1-character key 31 A groove 29c that engages with the slide block 31 is provided near the center of the tapered surface 29d of the rim holder 29, and the rim holder 29 is locked to or released from the slide block 30 by moving the Hi 11 key 31 in and out. The slide block 30 is slidably attached to the beam 15 of the main body frame 11 by a guide 32.
The action of the cylinder 33 connected to the slide block 30 and the beam 15 prevents the loader 5 from loading and unloading the rim holder 29 from the position where both the rims 4a and 4b are in the same position. It is configured so that it can be moved to a position where it does not occur.

The loader 5 slides on a rail 34 fixed to the common frame 3, and includes a near motion bearing link 35, a slide base 36 to which a rod 38a of a cylinder 38 fixed to the common frame 3 is connected, and a slide base 36 connected to a rod 38a of a cylinder 38 fixed to the common frame 3. S36
a loader arm 37 that is rotatably supported at one end, swings in a horizontal plane by a cylinder (not shown), and has a gripping finger 37a at the other end that engages with a groove 29b provided in the rim holder 29; The second gripping finger 40 is swingably incorporated into the pin 39 near the base of the pin 37a and also engages with the groove 29b.
The groove 29b is opened by the action of the cylinder 42 connected via the
The part is gripped or released at three points 37b and 40a shown in FIG.

The discharge conveyor 6 is a well-known roller conveyor incorporating a plurality of freely rotatable rollers, and the upper surface of the roller row is inclined so that the tires T placed on the roller conveyor 6 flow backward by a component of their own weight. and assembled into a common frame 3.

Next, the inner rim attachment/detachment mechanism will be explained.

The rim holder 46 to which the inner rim 4a is airtightly fixed by known means includes a ventilation hole 46d inwardly, and a plurality of radially arranged holes 46f connecting the ventilation hole 46d and the ventilation hole 27c.
It has a guide hole 46e for the piston rod 43a described later, a tapered surface 46a on the outer periphery of the protrusion, a groove 46b for an O-ring 47 on both sides of the opening of the through hole 46f, and a steel ball 48 is inserted into the tip of the 38 protrusion. It has a plurality of radial arrangement holes 46c, and both open ends of the holes 46c are treated with caulking or the like to prevent the steel balls 48 from falling out after they are inserted.

The other inner shaft 27 has a tapered hole 27e that engages with the tapered surface 46a of the rim holder 46, and an H8 hole in the hole 27e.
A guide hole 27g and a cylinder hole 27h that communicate with each other,
A hole 27d for supplying and discharging pressure fluid is provided in the cylinder hole 27h, a piston 43 is inserted into the hole 27h, a piston rod extending to one side of the piston 43 is inserted into the hole 27e, and the inner shaft 27 is connected to the inner shaft 27 by a known means. A coil spring 44 is inserted between the fixed cylinder cap 45 and the piston 43, and the coil spring 44 is guided by a guide rod 45a whose one end is fixed to the cylinder cap 45.
When pressure fluid is supplied through the piston rod 43a, the steel ball 48 becomes free, and the rim holder 46 with the rim 4a becomes detachable. When the pressure of the pressure fluid is released, the fluid is discharged by the action of the coil spring 44. The piston rod 43a is pushed out, and the piston rod 43a is pushed out.
The steel ball 48 is
is pushed outward and engages with the ball groove 27f provided in the tapered hole 27e, and the rim holder 46
It is configured to be locked.

Although the rim holder locking means in the rim attaching/detaching mechanism of this embodiment uses a U-shaped key type and a steel ball type, the invention is not limited to these two types, and other known types such as split taper ring may be used. It's good as well.

Next, the operation of the above embodiment during tire processing will be explained.

It is assumed that the first cooling and the cooling of the lower tire in FIG. 2 have been completed. The loader arm 37 is rotated horizontally to grip fingers 37a,
40 to grip the rim holder 29 and move the 0-shaped key 31 to unlock the tire T, then remove the compressed gas from the tire T and raise the loader arm 37.
When the rim holder 29 is detached from the slide block 30, the slide block 30 is moved by the cylinder 33.

When the movement of the slide block 30 is completed, the loader arm 37 is moved in the opposite direction to a position where it will not interfere with the inner rim 4a when unloading the tire, the tire T is lowered, and the loader arm 37 is rotated to remove the outer rim 4b. The tire T placed on the top is carried out of the PCI main body 1 together with the outer rim 4b via the rim holder 29.

Thereafter, when the loader arm 37 is lowered again and the outer rim 4b is lowered below the roller surface of the discharge conveyor 6 as shown at 4d in FIG. 2, the tire T that was on the rim 4b is discharged. remains on the roller surface of the conveyor 6,
Move backward on the discharge conveyor 6 by the force of its own weight and P
It is discharged outside the CI. After the tire has been discharged, the loader arm 3 is moved to receive the next tire to be processed.
7 is raised to the state shown at 58 in FIG. 2,
The outer rim 4b waits at position 4c.

The vulcanized and uncooled tire Ta lifted out by the unloader 7 and to be processed next is placed directly on the outer rim 4b at the position 4c. When the delivery of the tire Ta is completed, the loader arm 37 is rotated and the PCI is removed together with the outer rim.
It is carried into the main body 1.

If the tire Ta does not require gripping swelling cooling,
When the loader arm is lowered after the tire Ta has been delivered, it can be discharged to the rear of the PCI via the discharge conveyor 6 and bypass the PCI main body 1, as described above.

When the outer rim 4b comes to a concentric position with respect to the inner rim 4a and the rotation of the loader arm 37 is completed, the loader arm 37 is raised by the cylinder 38 and placed on the outer rim 4b via the outer rim 4b. Tire Ta to inner rim 4
a, then move the slide block 29 and align the tapered surface 30a of the slide block 29 with the outer rim 4.
Same as b. Thereafter, when compressed gas is injected into the tire Ta, the tire Ta expands and the loader arm 37 is pushed back and lowered, so that the tapered surface 29a of the rim holder 29 is engaged with the tapered surface 30a of the slide block 30.

After the engagement of both tapered surfaces 29a and 30a is completed, move the 0-character key 31 to lock it and release the gripping fingers 40, and then move the loader arm 37 to a position where it will not interfere with the reversal of the PCI main body 1. When the set time elapses, the motor 19 starts, and the PCI main body 1 is in good condition.
Alternatively, the process may be performed in 90 degree intervals.

Note that the outer shaft 20 is rotated as necessary to prevent the screw from sticking.

Next, the effect when replacing the rim will be explained.

After discharging the cooled tires, the outer rim 4b is moved to the PCI main body 1 in an empty state without receiving the next tire to be processed.
After being swung into the inner rim, the inner rim 4a is raised, and then pressure fluid is injected through the hole 27d to retract the piston rod 43a and unlock the rim holder 46 for the inner rim 4a.

After the lock is released, when the outer rim 4b is lowered by the loader 5, the inner rim 4a separates from the inner shaft 27 together with the rim holder 46 due to its own weight. Then, when the loader arm 37 is turned, both rims are carried out of the PCI main body 1 with the inner rim 4a riding on the outer rim 4b.

Both rims carried out of the PCI main body 1 are lifted out of the machine sequentially or simultaneously using an overhead mole rail hoist or the like, and the rim to be used next is hung in order to perform rim replacement.

Thereafter, the PC 1 is carried into the main body 1 and installed in the reverse procedure to the above.

Of course, if it is not a PCI with a loader, it is necessary to install a rim-specific loading/unloading procedure.

(Effects of the Invention) The present invention includes a main body frame that is rotatable around a horizontal axis;
two beams disposed symmetrically on both sides of the body frame and supported by the body frame; and two beams attached to the outside of two inner shafts movable in the radial direction on both sides of the body frame, respectively. two outer rims whose outer ends are supported by slide blocks that are movable along the two beams and grip the tire between the two outer rims, and the tire is inserted through the inner rim It has a fluid mechanism that supplies and discharges compressed fluid inside, and a gripping finger that grips the outer rim at the tip.
It is equipped with a loader arm that can horizontally rotate between the tire receiving and discharging positions outside the I main body and can be raised and lowered,
In a gripping and expanding fat cooling device for a vulcanized tire in which the tire is attached and detached at a position below the main body, a tapered surface is formed at the end of each rim holder provided on the inner rim and the outer rim, and the outer side of the inner shaft a tapered hole and a locking member for accommodating the inner rim holder end are provided at the end, a tapered hole and a locking member for accommodating the outer rim holder end are provided for the slide block,
By configuring the inner rim holder and the outer rim holder to be pulled out from their respective supporting parts by releasing the locking member, the following effects are achieved.

Rim replacement can be done safely and in a short time without the need for dangerous manual work such as attaching and removing bolts on the PCI main body, which has poor footing.

[Brief explanation of the drawing]

FIG. 1 is a front view of a vulcanized tire gripping swelling cooling device W according to an embodiment of the present invention, and FIG. 2 is a side view of a vulcanized tire gripping swelling cooling device W according to an embodiment of the present invention. , Fig. 3 is a sectional view taken along the I-r arrow in Fig. 1, Fig. 4 is a sectional view taken along the ■-■ arrow in Fig. 1, and Fig. 5 is an enlarged sectional view taken along the ■ arrow in Fig. 3. . 1---PCI body, 2-m-gripping mechanism, 4a
-m-inner rim, 4b-m-outer rim, 5-m
-Loader, 6----Discharge conveyor, 11-
11 Main frame, 15--- Beam, 29---
Outer rim holder, 37---Loader arm, 46---
Inner rim holder, T-m-tire.

Claims (1)

[Claims] a main body frame rotatable around a horizontal axis; two beams disposed symmetrically on both sides of the main body frame and supported by the same main frame; and two beams movable in the radial direction on both sides of the main body frame, respectively. two inner rims attached to the outer ends of the inner shafts, and two inner rims that are supported on the outside by slide blocks that are movable along the two beams, each gripping a tire between the two inner rims. an outer rim, a fluid mechanism for supplying and discharging compressed fluid into the tire through the inner rim, and gripping fingers for gripping the outer rim at the tip, and a tire receiving/discharging position directly below the PCI main body and outside the PCI main body. A vulcanized tire gripping/expansion/cooling device for attaching and detaching tires at a position below a PCI main body, comprising a loader arm that can horizontally rotate between the two and can be raised and lowered, and that is provided on the inner rim and the outer rim. a tapered surface is formed at the end of each rim holder in the slide block, a tapered hole and a locking member are provided at the outer end of the inner shaft for accommodating the inner rim holder end, and a tapered hole for accommodating the outer rim holder end is provided in the slide block. 1. A gripping, expansion and cooling device for a vulcanized tire, characterized in that a locking member is provided, and when the locking member is released, the inner rim holder and the outer rim holder are pulled out from their respective support parts.