JPS58102739A - Post cure inflator for vulcanizing tyre - Google Patents

Abstract

PURPOSE:To simplify a mechanism and to improve workability, by a method wherein engagement of a clamp block with a clamp cylinder and engagement of a clamp block with a moving boom are simultaneously and reversely made through rotation of the clamp cylinder. CONSTITUTION:A vulcanized high-temperature tyre 19, grasped by a tyre grasping means 48, is brought to a stop right above a clamp cylinder 25. A moving boom 51 is lowered, a connecting rod 59 is inserted into a rectangular aperture 32, and a mating projection 33 passes through an engaging aperture 65. With the clamp cylinder 25 turned by 60 deg., the connecting rod 59 spins by 60 deg., and the mating projection 33 and a bottom plate 64 are brought into an engaging phase state. Thus, if the tyre grasping means 48 is opened and a piston rod for a fluid cylinder 56 is expanded, only the moving boom 51 is raised, and a clamp ring 58 and the tyre 19 remain on a rim 21. If compressed air is blown into through an air feed path 18, the tyre 19 performs a natural radiation. The cooled tyre 19 is removed upward by revolution of a revolving axis 13, and the high-temperature tyre 19 is moved to the back side of a clamp base 11 to enter it into a cooling process.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a post-cure inflator in which air at a pressure of 11A is blown into a high-temperature vulcanized tire and then shaped and cured while cooling. It has a simplified structure, higher reliability, and improved workability.

A post-cure inflator receives a high-temperature vulcanized tire sent out from a tire vulcanizer, and cools the tire to near room temperature by blowing compressed air into the tire. Various things have been developed so far, such as ! What is disclosed in Japanese Patent Publication No. 51-66177 and Japanese Patent Publication No. 51-29553 is that high-temperature tires transferred from an Lp ear vulcanizer to an inclined roller conveyor are stopped due to the amount of strut. At this point, the gripping means flips it upwards, and the cooling operation is performed. When the cooling is finished, the gripping means is reversely reversed downward again, and the cooled tires placed on the roller conveyor are transferred to the finishing process side one by one in the amount of the fallen tire. However, with this type of tire, the distance between the center of the tire and the 4-stroke air inflator is 5y! It was difficult to align the t with the center of the part, and automatic operation was often interrupted due to clamping errors. To solve this problem, a method disclosed in Japanese Patent Application Laid-open No. 53-142481 is known, in which the tire vulcanizer moves horizontally to the rear to remove the vulcanized tires [posts]. The inflator is discharged to the upper clamp position of the cure inflator, and after cooling is sent downward. However, in this type 4, the number of reversals is twice that of the above-mentioned one, and a holding device is required to prevent the tire from falling off during reversal after the clamp is released. In addition, the discharge conveyor is located low in terms of the mechanism, making it impossible to integrate it with existing conveyance equipment, and the structure is complex, meaning that only a type in which the tire vulcanizer moves horizontally to the rear can be used.

SUMMARY OF THE INVENTION In view of the various problems in the conventional four-stroke inflator, it is an object of the present invention to provide a four-stroke inflator that has a simple mechanism and is highly reliable and improves workability.

The structure of the I-Stock Cure Inflator for vulcanization according to the present invention that achieves this object includes a circular rim that is attached to a frame, abuts against the tire ped, and has a compressed air inlet formed therein; It protrudes from the center toward am and is rotatably supported by the pedestal, and has an engaging protrusion formed on the outer periphery of the upper end, and has a tire gripper capable of gripping the tire and a tire gripper capable of gripping the tire. A movable boom capable of placing a tire on the rim, and a retaining protrusion formed on the movable gnome and having a shape corresponding to the nine engaging holes and capable of being detachably engaged with the retaining hole. A clamp block is provided with a connecting rod formed at the upper end thereof and protruding downward, which is slidably fitted into the flange and can transmit the rotational force from the flange; and a connecting rod is provided at the lower end of the clamp block. and has a shape corresponding to the engaging protrusion of the clamp piece, and the engaging protrusion of the clamp piece is in contact with the retaining hole of the movable boom and the retaining hole of the clamp block. A retaining hole that can be removably locked in a locking phase opposite to the locking phase with the mating protrusion is formed in the center portion, and the bottom plate has a round annular shape.

An embodiment of the post-cure inflator for tire vulcanization according to the present invention will be explained in detail below with reference to FIGS. 1 to 3. As shown in FIG. 1 showing a schematic cross-sectional structure of the case and FIG. 2 showing a planar structure thereof, a horizontally positioned pivot shaft is formed with a plate-shaped clamp base 11 and a guide base 12. 13 is rotatably supported by support legs 15 via bearings 14, and these constitute the entire frame. An output gear of a drive device (not shown) meshes with a drive gear 16 provided at one end of the rotating shaft 13.

This driving device allows the pivot shaft 13 to rotate every 180 degrees so that the clamp base 11 and guide base 12 can be turned upside down. An annular holder 17 that is integral with the clamp base 11 is formed with an air supply passage 18 that is connected to a compressor (not shown) and into which compressed air is blown. The annular glue 21 that comes into contact with the peak part 20 of
They are closely linked through IJ Song 2. The lower end is screwed into the annular presser plate 23 and the holder 17.
On the lower surface of the cylindrical flange cylinder 25 rotatably supported with respect to the reholder 17, there is a hydraulic cylinder 27 installed on the guide base 12 via a bracket 26.
Attach the pin 30 to the clevis 29 at the tip of the piston rod 2B.
A lever 31 is protrudingly connected to the hydraulic cylinder 27 through a lever 31.
A clamp 2 protrudes from the center of the rim 21 perpendicularly to the rim 21.
5 is designed to reciprocate by 60 degrees in this embodiment. A rectangular hole 32 is formed at the upper end of the clamp member 25, and a scalene hexagonal engagement center portion 33 is provided on the outer periphery of the flange tube 25 around the rectangular hole 32.

A guide rod 35 for guiding the vertical movement gate of the slider 34 is vertically protruded from the guide pace 12 through a nut 36t, and is slidably attached to the guide rod 35. A piston rod 38 of a fluid pressure cylinder 37 installed perpendicularly to the pace 12 is connected,
The operation of the fluid pressure cylinder 37 causes the slider 34 to move up and down along the guide rod 35. A tilting shaft 39 parallel to the rotation shaft 13 is rotatably attached to the slider 34, and this tAI! A pair of arms 40 on which tires 19 are mounted are mounted on the I-shaft 39, and a pair of arms 40 are connected to the tilting shaft 39 and 1.
It is protruding from the corner. The arm 40 is in a cantilever state, and its own weight exerts a counterclockwise moment on the tilting shaft 39 in FIG. is provided protruding from the tilting shaft 39 in the opposite direction to the arm 40. This lock lever
A roller 43 that protrudes above the upper end surface of the slider 34 is rotatably attached to the slider 42 via a pin 44. After pressing against 445, slider 34
Since the position of the tilting shaft 3.9 continues to rise until the upper end surface pushes against the stopper 45, the arm 40 is tilted as shown in FIG. The cooled tires 19 placed thereon slide down a number of four-wheelers 46 rotatably attached to an arm 40 toward a discharge conveyor (not shown).

On the other hand, a fluid pressure cylinder 49 is connected to a pair of tire gripping tools 48 that rotate around a pin 47, and the tire gripping tools 48 open and close in response to the operation of the fluid pressure cylinders 49 to grip or release the tire 191. We have become friends. The fluid pressure cylinder 49 via the bracket 50
The proximal end of the movable boom 51 supported by the T-tip is slidably fitted into a column 54 that projects vertically from a base 53 that is integral with the foundation 52 on which the support leg 15 is placed. 5
4 is placed on an elevating plate 55 that is vertically movable. A fluid pressure cylinder 560 installed perpendicularly to the pace 53 has an upper end of a piston rod (not shown) connected to the elevating plate 55.
Due to the operation of
4 to transfer the hot tire 19 held by the tire gripping tool 48 onto the rim 21. At the lower end of the proximal end of the movable boom 51, a frame wheel 57 is formed that engages with the output gear of a drive device (not shown). The high-temperature tire 19 is picked up from the tire vulcanizer by reciprocating between and directly above the flang tube 25 and transported directly above the flang tube 25.

A connecting rod 59 in the shape of a rectangular rod corresponding to the rectangular hole 32 of the flange tube 26 projects downward at the center of the upper end of the bell-shaped crank ring 5B.
The lower end of 9 is machined into a tapered Teno matrix shape in order to smoothly fit into the rectangular hole 32. Also, connecting rod 5
A locking protrusion 61 is formed at the upper end of the movable boom 51 and has a shape corresponding to the hexagonal locking hole 6o formed at the tip W& of the movable boom 51. A clamp lock consisting of a rainbow connecting rod 59 and a clamping ring s8 is attached to the movable boom 61.
It is suspended from the ground and becomes a nine-shaped field. From this locking phase, the connecting rod 59
When the clamp cylinder 58 rotates by 60 degrees, the phase of the engagement hole 60 and the engagement protrusion 61 match, and the clamp lock is removed from the movable boom 51. In addition, an O-ring 63 is interposed between the connecting rod 59 attached to the clamp ring 58 and the clamp ring 5B. A scalene hexagonal engagement hole 65 corresponding to the engagement protrusion 33 of the clamp cylinder 25 is provided in the center of the bottom plate 64 . Engagement protrusion of clamp tube 25 [3
3 can pass through this engagement hole 651, the connecting rod 5
The engagement protrusion 61 of 9 and the engagement hole 60 of the movable arm 51 are in a locked state 9, and similarly the engagement protrusion 33 of the clamp cylinder 25 and the engagement hole 65 of the bottom plate 64 are in a locked state. In this phase, the engagement protrusion 61 of the connecting rod 59 can pass through the engagement hole 60 of the movable boom 51 and the engagement hole 66 of the bottom plate 64.
and the phase of the engaging protrusion 61 of the connecting rod 59 are opposite to each other. In this embodiment, the engaging protrusion 33 and the engaging protrusion 6
1 and the engagement holes 32 and 5ot, respectively, are made into well-shaped scalene hexagons, but any other hair shape may be used independently. Sorry, the movable poom 51 and the connecting rod 5 correspond to the engagement phase between the clamp cylinder 25 and the bottom plate 64.
It is necessary to reverse the phase angle of the engagement projection 61ζ of the connecting rod 59 and the engagement hole 65 of the bottom plate 64 so that the engagement phase with the engagement hole 65 of the bottom plate 64 is reversed. Further, the bottom plate 64 has the tire 19's peed part 2.
An annular glue 6 still in contact with the 0 is fixed via an 0 cylinder 67t.

In this embodiment, the clamp f125 and the pressure cylinder guide f1. Slider 34. Planned stick 35. .

This is a four-point type I-Stocure inflator, which is equipped with an arm 40, etc., and two sets of the clamp pace 11, guide pace 12, movable boom 51, etc. Point type and tires 19t
- It is also possible to use a one-point type that processes only one line.

High-temperature tires 19tj' that have been vulcanized on the tire vulcanizer side
When the ear gripping tool 48 grips it, the drive device is actuated to rotate the movable seam 51 and stop it directly above the clamp tube 25 as shown in Figure #I1.

Here, when the piston rod of the fluid pressure cylinder 56 contracts and lowers the movable pool 51t, the connecting rod 59 fits into the rectangular hole 32, and the engaging protrusion 33 passes through the engaging hole 65 of the bottom plate 64. state. This movable! -The piston rod of the fluid pressure cylinder 27 at the lower end of the arm 51)'28t-
Extended flange cylinder 25t? When rotated 60 degrees, the connecting rod 59 rotates 60 degrees to connect the engagement protrusion 61 and the movable pool 51.
The other side matches the phase with the engagement hole 60 of.

The engagement protrusion 33 and the engagement hole 65 of the bottom plate 64 are in a locking phase. Therefore, when the fluid pressure cylinder 49 is operated to open the tire gripping tool 4s and the piston rod f of the fluid pressure cylinder 56 is extended again, only the movable pool 51 rises and the clamp ring 58 and the tire 19 are placed on the rim 21. It will stay. Here, when compressed air is blown into the tire 19 from the air supply path 18, the tire 19 expands and starts to completely dissipate heat naturally.
3 is locked to the bottom plate 64, there is no risk of it coming off from the clamp tube 25.

After that, the pivot shaft 13 rotates 180 degrees, and the cooled tire 19 is moved upward while the high temperature tire 19 is moved upward.
moves to the back side of the clamp pace 114 and enters the cooling process. Next, the fluid pressure cylinder 37 is operated to raise the cooled tire 19t-7-person 40, and at the rising end, as shown by the stripe 31, the tar roller 46 is raised by the inclination of the arm 40.
The tire 19 is then transferred onto a discharge container (not shown).Then, the piston contact 38 of the fluid pressure cylinder 37 returns to its original position, and the movable seam 51 is exposed to the new high temperature tire. The receiver No. 19 enters the loading state, and cooling of the tire after the rainbow vulcanization is automatically performed one after another by repeating the above-mentioned process nine times.

According to the post-cure inflator for tire curing of the present invention, the locking of the flang block to the clamp tube and the locking of the crank block P to the movable poom are mechanically and simultaneously reversed by rotation of the clamp tube. Detection equipment and clan! A hydraulic cylinder is not required, the mechanism is simple, the operation is reliable, and it is economical and has excellent maintainability. In addition, the rounding workability is very good as all tires can be processed from above, and it is easy to assemble into existing equipment.

[Brief explanation of drawings]

1st is a cross-sectional view showing a simplified structure of an embodiment of the present invention applied to a 74-point post-cure inflator for tire vulcanization; 2nd is a plan view thereof; It is a sectional view similar to FIG. 1 showing the shape II, and 11 is a clamp pulse, and 18 is an air supply path. 19 is a tire. 20 is Pead M. 21 is a beam, 25 is a clamp tube, 27, 49, 56 is a fluid pressure cylinder, 32 is a rectangular hole, 33 is an engaging protrusion, 4B is a tire holder, 51 is a movable boom, and 54 is a support. 58 smoked clamp ring, 59 wire connecting rod, 60. 65 is a retaining hole, 61 is an expansion mating protrusion, and 64 is a bottom plate. Patent applicant: Mitsubishi Heavy Industries, Ltd. Patent attorney: Shibu Mitsuishi (and 1 other person)

Claims (1)

[Claims] a nine-ring-shaped rim that is attached to the frame and is in contact with the tire ped and has a compressed air inlet;
A clamp tube that protrudes vertically from the center of the rim, is rotatably supported on the frame, and has an engaging protrusion formed on the outer periphery of the upper end, and a tire gripping tool capable of gripping the tire, and is driven to raise and lower the tire. a movable boom on which the tire can be placed on the rim; and a retainer having a shape corresponding to a retaining hole formed in the movable boom and capable of being detachably engaged with the retaining hole. A clamp block including a mating protrusion formed at an upper end thereof and a connecting rod protruding downward that can slidably fit into the clamp cylinder and transmit rotational force from the clamp cylinder; and this clamp block. The bottom end of the tire has a shape that corresponds to the engagement protrusion of the clamp tube, and the engagement protrusion of the second clamp tube is engaged with the movable boom. 4 for tire vulcanization, which comprises an annular bottom plate having a retaining hole formed in the center thereof, which can be detachably engaged with the hole and the retaining protrusion of the crunchy block in a locking phase opposite to that of the retaining projection of the crunchy block; Stock your inflator.