JPH05131462A - Postcure inflator - Google Patents

Abstract

PURPOSE:To obviate a falling preventive device for a lower rim by simplifying the structure, by a method wherein an operating station position and holding station position are changed over to each other by moving the upper and lower rims within a horizontal surface under a state where a tire is held between an operating station and holding station by arranging them within the horizontal surface. CONSTITUTION:A completely vulcanized tire 35 is received from a tire vulcanizing machine 5, held between a freely contactable and separatable upper rim 21 and lower rim 22, high-pressure air is enclosed within the completely vulcanized tire 35 for expansion of the tire, held for a time and discharged after performance of cooling. Hereupon, the subject inflator is constituted so that an operating X and holding Y are provided separately from each other and the upper and lower rims 21, 22 can be freely changed over between a position at the operating station X and position at the holding position under a state where they hold the tire 35 by placing between them. Then the operating station X and holding station Y are arranged within a horizontal surface. With this constitution, the structure becomes simple and a falling preventive device for the lower rim should be obviated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a post-cure inflator for expanding and cooling by enclosing high pressure air in a vulcanized tire, and in particular, it has a simple structure and does not require a lower rim drop prevention device. The one that can take a sufficient maintenance space.

[0002]

2. Description of the Related Art Conventionally, as a post-cure inflator of this type, since the expansion and cooling time of a vulcanized tire is set to be one cycle time or more of a tire vulcanizer, a tire vulcanizer 1
A post-cure inflator called a turnover type in which two sets of upper and lower rims are arranged with respect to a cavity and the upper and lower rims are vertically inverted while a tire is sandwiched between the upper and lower rims is widely used.

A turnover type post cure inflator will be described with reference to FIG. In FIG.
This post-cure inflator comprises two sets of upper and lower rims 21 and 22 which can be freely contacted and separated so as to be vertically reversible, and a pedestal 26 is mounted on a rotary shaft 25 rotatably supported between side frames 24. It is composed of a reversing device 23 to which the upper rim 21 is attached via, and an elevating device 27 for allowing the lower rim 22 to come into contact with and separate from the upper rim 21. A rocking shaft 28 is supported on the pedestal 26, and a tip end of the rocking shaft 28 is a male locking unevenness 28a.
The lifting device 27 can be lifted and lowered by a cylinder 29,
A convex portion 27 a is provided at the tip of the lifting device 27.
The lower rim 22 has a female locking irregularity 22a and a concave portion 22b, and the locking shaft 28 is formed on the female locking irregularity 22a.
The locking shaft 2 by inserting the male locking irregularities 28a of
The upper and lower rims 21 and 2 are rotated by rotating 8 at a predetermined angle.
2 are integrated, and the convex portion 27a of the lifting device 27 is formed in the concave portion 22b.
The lower rim 22 is fixed to the elevating device 27 by inserting and operating a coupling member (not shown) provided on the concave portion 22b and the convex portion 27a.

Next, the operation of the above-mentioned post cure inflator will be described. The vulcanized tire 35 vulcanized and molded by the tire vulcanizer is placed on the lower rim 22 by a transport arm (not shown). The vulcanized tire 35 has the lower rim 2
When stepping on 2, the elevating device 27 is lifted to bring the lower rim 22 closer to the upper rim 21, and the female locking irregularities 22a of the lower rim 22 are engaged with the male locking irregularities 28a of the locking shaft 28.
Is inserted and the locking shaft 28 is rotated by a predetermined angle to integrate the upper and lower rims 21 and 22. As a result, the vulcanized tire 35 is sandwiched between the upper rim 21 and the lower rim 22, and in this state, high pressure air is enclosed in the vulcanized tire 35 to be in an expanded cooling state. And, the rotary shaft 25
By rotating, the upper and lower rims 21 and 22 are vertically inverted while the tire 35 is sandwiched between the upper and lower rims 21 and 22, and cooling is performed at this position. When cooling is finished,
By rotating the rotating shaft 25 in the opposite direction by 180 °, the upper and lower rims 21, 22 holding the tire 35 are sandwiched.
Upside down. Then, the tire 35 after expansion and cooling
Is lowered together with the lower rim 22 by the lifting device 27,
Discharge outside the machine.

[0005]

In the turnover type post cure inflator described in the prior art, the operation station M for receiving, pinching, inflating and discharging the tire 35 and the holding station N for cooling are vertically arranged. Therefore, by rotating the rotating shaft 25 supported between the side frames 24, the upper and lower rims 21 and 22 holding the tire 35 are vertically inverted. Therefore, the side frame 24
Must be strong and complicated, and a drop prevention device must be provided on the lower rim 22 in order to prevent the lower rim 22 from dropping at the time of this inversion. further,
Since the side frames 24 are erected at both ends, there is a problem that a space for maintenance cannot be provided in the lower part.

The present invention has been made in view of the above problems of the prior art. The object of the present invention is to have a simple structure, a lower rim drop prevention device is not required, and a maintenance space is required. It is intended to provide a post-cure inflator capable of taking sufficient amount of energy.

[0007]

In order to solve the above-mentioned problems, the post-cure inflator of the present invention receives a vulcanized tire vulcanized and molded by a tire vulcanizer, and an upper rim which can be contacted and separated from the vulcanized tire. A post-cure inflator that is sandwiched between lower rims, filled with high-pressure air in a vulcanized tire to expand it, holds it for a predetermined time, cools it, and then discharges it.
An operation station for receiving, pinching, expanding, and discharging and a holding station for cooling are provided separately, and the upper and lower rims can be freely switched between the position in the operating station and the position in the holding station with the tires sandwiched. In the post-cure inflator capable of performing the above, the operation station and the holding station are arranged in a horizontal plane.

[0008]

Since the operation station and the holding station are arranged in the horizontal plane, by moving the upper and lower rims in the horizontal plane, the upper and lower rims can be positioned between the operation station and the holding station while holding the tires. Can be switched freely.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial cross-sectional view of the post-cure inflator of the present invention, FIG. 2 is a view taken in the direction of arrow A of FIG. 1, and FIG. 3 is a view showing the operation of the post-cure inflator of the present invention. 1 to 3, parts having the same functions as those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted.

In FIGS. 1 and 2, this post-cure inflator has four lift arms 2 extending in the horizontal direction attached to a support shaft 1 provided upright in the center, and these four lift arms 2 are attached. A swivel device 3 in which an upper rim 21 is attached to a lower surface of each tip of the upper rim 21 via a pedestal 26, and an elevating device 2 for allowing the lower rim 22 to come into contact with and separate from the upper rim 21.
7 and the four lift arms 2 are rotatable about the support shaft 1 by a drive device (not shown). X on the tire vulcanizer 5 side of the post cure inflator is for receiving, sandwiching and expanding the vulcanized tire 35,
And, the operation station for discharging the tire 35 after the expansion and cooling is performed, and Y on the side opposite to the tire vulcanizer 5 is a holding station Y for cooling the tire 35,
The operating station X and the holding station Y are arranged in a horizontal plane. Then, by rotating the lift arm 2 horizontally by 180 °, the upper and lower rims 21, 2 are rotated.
2, the tire 35 is sandwiched so that the position at the operation station X and the position at the holding station Y can be switched freely. In addition,
Reference numeral 8 denotes a swivel arm that takes out the vulcanized tire 35 from the tire vulcanizer 5 and conveys it to the post-cure inflator side. The chuck device 9 attached to the tip of the swivel arm radially expands or contracts the diameter in a radial direction. 3 or more chuck claws 10 are arranged at equal intervals in the circumferential direction.

Next, the operation of the post cure inflator having the above structure will be described with reference to FIG. When the vulcanization molding by the tire vulcanizer 5 is completed, the chuck bead 10 of the chuck device 9 grips the upper bead portion 35a of the vulcanized tire 35 from the inside and pivots the revolving arm 8 to vulcanize the tire. 35 is moved to the receiving position in the operation station X of the post cure inflator. When the vulcanized tire 35 moves to the receiving position, the elevating device 27 raises the lower rim 22 to fit the lower rim 22 into the lower bead portion 35b of the vulcanized tire 35 from below, and the chuck claw 10 is moved inward. The diameter of the vulcanized tire 35 is reduced and the vulcanized tire 35 is placed on the lower rim 22. Then, the lower rim 22 is lowered to extract the vulcanized tire 35 downward from the chuck claws 10, and the vulcanized tire 35 is positioned. Next, the lifting device 27
To move the lower rim 22 closer to the upper rim 21, insert the male locking concave / convex 28a of the locking shaft 28 into the female locking concave / convex 22a of the lower rim 22, and rotate the locking shaft 28 by a predetermined angle to move up and down. The partial rims 21 and 22 are integrated. As a result, the vulcanized tire 35 comes to a position where it is sandwiched between the upper rim 21 and the lower rim 22, and high-pressure air is enclosed in the vulcanized tire 35 at this position to bring it into an expanded cooling state.

After the vulcanized tire 35 has been received, pinched and expanded at the operation station X, the lift arm 2 is pivoted horizontally by 180 °, whereby the tire 3 is rotated.
The upper and lower rims 21 and 22 in which 5 is clamped are moved to a position inside the holding station Y. Then, cooling is performed at this position. In the meantime, at the operation station X, the next vulcanized tire 35 is received, pinched and expanded. When the cooling is finished, the upper and lower rims 21 and 22 with the tires 35 sandwiched therebetween are returned to the position in the operation station X by turning the lift arm 2 horizontally by 180 °. At this time, the next vulcanized tire 35 moves from position to position. Next, the elevating device 27 is lifted to insert the convex portion 27 a of the elevating device 27 into the concave part 22 b of the lower rim 22, and the lower rim 22 is fixed to the elevating device 27. Then, the elevating device 27 is lowered to pull down the tire 35 after the expansion and cooling together with the lower rim 22, and the tire 35 after the expansion and cooling is discharged to the outside of the machine. As described above, the operation station X and the holding station Y are arranged in the horizontal plane, and the upper and lower rims 21 and 22 are moved in the horizontal plane so that the upper and lower rims 21 and 22 sandwich the tire 35 and operate the operation station. The position at X and the position at the holding station Y can be switched freely. Therefore, as described above, one support shaft 1 to which the lift arm 2 extending in the horizontal direction is attached is erected at the center, and the lift arm 2 is pivoted about the support shaft 1 in the horizontal direction so that the tire 35 The upper and lower rims 21 and 22 in the state of sandwiching can be moved in a horizontal plane. As a result, the structure is simplified, and since the upper and lower rims 21 and 22 move in the horizontal plane, the fall prevention device for the lower rim is unnecessary. Furthermore, a sufficient space for maintenance can be provided in the lower part.

In the above embodiment, the upper rim is attached to the lower end surface of each of the four freely rotatable lift arms,
Although the lower rim can be brought into contact with and separated from the upper rim by the elevating device, as shown in FIG. 4, the lower rim 13 is attached to the top surface of each tip of the four lift arms 12 which are rotatable. The upper rim can be freely attached to and detached from the lower rim. This is support shaft 1
4 to the arm 15 extending in the horizontal direction from the cylinder 16
The upper rim 17 is attached to and detached from the lower rim 13 by this cylinder 16, and the operation station X and the holding station Y are arranged in the horizontal plane in this case as well. The same effect as that of the embodiment is obtained.

[0014]

Since the present invention is configured as described above, it has the following effects. The operation station and the holding station are arranged in a horizontal plane, and by moving the upper and lower rims in the horizontal plane, the upper and lower rims can freely switch between the position in the operating station and the position in the holding station with the tires sandwiched. be able to. Therefore, one support shaft to which a lift arm extending in the horizontal direction is attached is erected at the center, and the lift arm is pivoted in the horizontal direction about the support shaft so that the upper and lower rims in which the tire is sandwiched are fixed. It can be configured to move in a horizontal plane. As a result, the structure is simplified, and since the upper and lower rims move in the horizontal plane, the fall prevention device for the lower rim is unnecessary. Furthermore, a sufficient space for maintenance can be provided in the lower part.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a post cure inflator of the present invention.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a diagram showing the operation of the post-cure inflator of the present invention.

FIG. 4 is a partial cross-sectional view of another post cure inflator.

FIG. 5 is a partial cross-sectional view of a conventional post cure inflator.

[Explanation of symbols]

 1 Support Shaft 2 Lift Arm 5 Tire Vulcanizer 21 Upper Rim 22 Lower Rim 27 Lifting Device 35 Tire X Operating Station Y Holding Station

Claims (1)

[Claims] 1. A vulcanized tire vulcanized and molded by a tire vulcanizer is received, sandwiched between an upper rim and a lower rim which can be contacted and separated, and high-pressure air is enclosed in the vulcanized tire to expand. It is a post-cure inflator that holds for a predetermined time and cools and then discharges it, and an operation station for receiving, sandwiching, expanding and discharging and a holding station for cooling are separately provided, and the upper and lower rims are tires. In a post-cure inflator capable of switching between a position in the operation station and a position in the holding station in a state where the operation station and the holding station are sandwiched, the post-cure is characterized in that the operation station and the holding station are arranged in a horizontal plane. Inflator.