JPH0796526A - Grasping and cooling apparatus for pneumatic tire - Google Patents

Abstract

PURPOSE:To enhance the rate of operation of the equipment to a great extent and to rapidly correspond to the formation and alteration of the size of a vulcanized tire. CONSTITUTION:At the time of usual operation, the upper rim part of a grasping device P is hung up by a feed device and a cooled tire is taken out in a suspended state by an unloader 10 while an uncooled tire is taken in a tire vulcanizer in a suspended state by the unloader of the vulcanizer and, subsequently, the upper rim part is allowed to fall to lock upper and lower rims and compressed air is introduced into the tire T to inflate the tire T to enter a cooling process. After the completion of cooling in the cooling process, the feed device and the unloader 10 are moved to grasping devices P1, P2 to complete the cooling of the tire T to wait the release of the pressure in the tire. At the time of the replacement of the rims, the cooled tire is taken out in a suspended state and the upper rimp part is allowed to fall not only to lock the upper and lower rims but also to release the lock between the lower rim part and a base 7 and the upper rim part is hung up along with the lower rim part to be transferred to a delivery position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic tire gripping and cooling device which is used in parallel with a tire vulcanizer.

[0002]

2. Description of the Related Art A high temperature vulcanized tire carried out from a tire mold by a type of cord incorporated in a tire and a vulcanization method quickly grips a bead portion of a tire with a rim and compresses a compressed gas. Inflate inside the tire to expand (inflate
), It is necessary to gradually cool it. For this reason, a grip cooling device for pneumatic tires (commonly known as Post Cure Inflator,
(Abbreviated as PCI or PI) is used.

Many known gripping and cooling devices for pneumatic tires include a stationary type in which the position of the tire gripping portion is fixed, an elevator type in which the tire gripping portion moves up and down, an inverted type in which the tire gripping portion is turned upside down, and the like. However, since the cooling time of the tire is generally less than twice the vulcanization time, the inverted type is mainly used in the automatic vulcanizer.

[0004]

The conventional gripping and cooling device for a pneumatic tire has the following problems. That is, the tire vulcanizer is configured to be able to vulcanize tires of different sizes by exchanging molds, and the pneumatic tire gripping and cooling device arranged in parallel with this tire also changes rims and changes rim intervals. Although it is possible, since the rim replacement and the rim spacing change are performed in a narrow place where the scaffolding is poor, the work is dangerous, and it takes a lot of time and the operating rate of the equipment is poor.

In addition, in a tire vulcanizing apparatus of a type in which a mold opening / closing device, ropes, and an unloader are used together for loading and unloading tires of a plurality of sets of tire molds, a tire mold transfer device or a tire mold transfer device is used during work such as rim replacement. The mold opening and closing device is running,
In addition to high risk, there is a problem that the vulcanizing pitch of the mold other than the size-changing mold is disturbed, and the operating rate of the device is poor.

The present invention is proposed in view of the above problems, and the object of the present invention is to significantly improve the operating rate of equipment. Another object of the present invention is to provide a grip cooling device for a pneumatic tire that can promptly respond to a change in size of a vulcanized tire.

[0007]

To achieve the above object, the present invention provides a grip cooling device for a pneumatic tire, which grips and expands a high temperature vulcanized tire sent from a vulcanizer to cool it. , A plurality of sets of gripping devices that are detachably assembled to the base of the pneumatic tire gripping cooling device and each have a pair of tire gripping rims, and run on a track that is arranged in parallel with each gripping device. And a lifting device for lifting the upper rim or the gripping device at each tire gripping position, and an unloader for unloading the cooled tire at the tire gripping position.

In the pneumatic tire gripping and cooling device, a storage rack for storing a plurality of sets of gripping devices, a gripping device from the storage rack is selected and taken out, and the taken-out gripping device is selected at an empty position of the storage rack. You may provide the storage apparatus which consists of the conveyance apparatus which stores.

[0009]

The pneumatic tire grip cooling device of the present invention is configured as described above. (1) During normal operation, the lower rim portion of the grip device is locked to the base, and the lock between the upper and lower rims is released. Then, the upper rim portion is hoisted by the transport device, the cooled tire is hoisted by the unloader, and the uncooled tire is hoisted by the unloader of the tire vulcanizing device. Next, the upper rim portion is lowered to lock the upper and lower rims, introduce pressure into the tire, inflate the tire, and start the cooling step. After entering the cooling step, the conveying device and the unloader are moved to the gripping device where the cooling is finished, the cooling of the tire is finished, and the tire internal pressure is released. (2)
When replacing the rim, after hanging the cooled tire, lower the upper rim to lock the space between the upper and lower rims and release the lock between the lower rim and the base. At the same time, the upper rim portion is lifted and transferred to the delivery position. After the rim exchange or the like, or after the rim exchange or the like with the gripping device is exchanged, the rim is transferred to the original position in the reverse order to open the space between the upper and lower rims and receive the next tire.
(3) When the gripping device is transported to the delivery position, the gripping device is stored in the empty position of the storage shelf via the transport device of the storage device, and the gripping device to be used next is transferred from the storage shelf to the delivery position. . It is desirable that the storage device is provided with a lifting device for exchanging rims.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a pneumatic tire gripping and cooling device of the present invention will be described with reference to an embodiment shown in the drawings. 1 and 2 show the entire tire vulcanizing equipment. 1 and 2,
1 is a base with a lower center mechanism for bladder operation, M
(M ₁ , M ₂ , ...) A plurality of sets of tire dies assembled on the upper surface of the base 1 with bolts and the like, 2 a track fixed to the upper surface of the base 1, 3 opening and closing of a mold running on the track 2. In the device, the rod tip of a mold lifting cylinder 24 fixed to the traveling frame 20 is fixed to an arm 21 assembled to the traveling frame 20 so as to be able to move up and down. A mold attaching / detaching device 22 is attached.

Reference numeral 4 denotes an unloader which travels on the track 2. An arm 4a having a tire gripping mechanism 4b attached to the tip thereof is attached to a traveling frame so as to be capable of moving up and down and swinging. Except for this, it is the same as the known unloader. Reference numeral 5 denotes a loader that travels on the track 2. An arm 5a having a tire gripping mechanism 5b attached to the tip thereof is attached to a traveling frame so as to be able to move up and down and swing.
Is the same as a known loader except that it travels.

Although the track 2 is shared by the mold opening / closing device 3, the unloader 4 and the loader 5 in this embodiment, a dedicated track may be provided. 6 is an unvulcanized tire supply device, 7
Is a base for a grip cooling device for pneumatic tires equipped with an air switching valve for tire inflation, P (P ₁ , P ₂ , ...)
Is a plurality of gripping devices detachably attached to the base 7, and the gripping device P is similar to a known PCI tire gripping part except that it is detachable from the base 7. .

Reference numeral 8 is a track fixed to the base 7, and 9 is a transfer device which travels on the track 8. A lifting device 10a for a gripping device P is mounted on the traveling frame 10 so as to be lifted up and down. An attaching / detaching device 10b for attaching / detaching to / from the gripping device P is attached to the elevator device 10a. An arm 10c is attached to the traveling frame 10 so as to be able to move up and down and swing, and the tire gripping mechanism 1 is attached to the arm 10c.
0d is attached. It should be noted that this PCI unloader may be allowed to run independently on the track 8. 11
Is a belt conveyor for delivering a vulcanized tire, and 12 is a storage device for a gripping device, which will be described in detail later.

Next, the configurations of the gripping device P and the attaching / detaching device for the gripping device will be described with reference to FIGS. 101 is P
The block placed on the CI base 7 is a block 10
1, a lever 112 having a claw that engages with a flange 101a protruding outwardly downward is swingably attached to the base 7, and the block 101 is attached to the base 7 by the action of a driving means (not shown). Locked or released.

Reference numeral 102 is a lower rim flange bolted to the upper surface of the block 101, and 103 is a lower rim flange 10.
Lower rim bolted to 2, 104 is block 101
And a bayonet shaft 105 rotatably mounted inside the lower rim flange 102, and a lever 105 bolted to the lower part of the bayonet shaft 104. The lever 105 has a cam roller at its tip, Bayonet shaft 104
Is the traveling frame 1 of the transport device 9 via the lever 105.
It is oscillated and rotated by a driving means (not shown, for example, two air cylinders) mounted in 0.

Reference numeral 106 is a compression spring inserted in the inner hole of the bayonet shaft 104, 107 is a guide bush inserted in the inner hole so as to be slidable up and down, and 108 is a guide flange bolted to the upper end of the bayonet shaft 104. . 111
Is a lock housing, 111b is a lock housing 11
1 is a flange projecting outward from the upper and lower intermediate portions, 109 is an upper rim bolted to the flange 111b via a spacer 110, 111e is a guide shaft fixed to the lock housing 111, and the guide shaft 111e is a guide shaft. It penetrates the flange 108 slidably, and when descending,
By engaging with the recess formed in the guide bush 107, the upper and lower rims 103 and 109 are centered via the bayonet shaft 104 and the lock housing 111. Further, depending on the swinging rotation angle of the bayonet shaft 104, the pawl 104a formed integrally on the upper end of the bayonet shaft 104 and the pawl 111a formed integrally on the inner surface of the lock housing 111 are engaged with each other. , Can be passed.

Reference numeral 10b denotes an attaching / detaching device for the transporting device 9, and the attaching / detaching device 10b is slidably and vertically movable in a hole provided at the tip of the arm 10a. And the detachable device 1
0b is a shaft 51 attached to the arm 10a, a block 51a integrally formed at the lower end of the coaxial shaft 51, and an arm 1
Compression spring 53 interposed between 0a and the block 51a
The lock housing 111 includes a stopper 54 fixed to the upper end of the shaft 51, a pin 52 rotatably inserted in the block 51a, and a swing rotation driving means (not shown) for the pin 52. Protrusion 1 formed on the top
A recess 111d that slidably receives 11c is formed in the block 51a. Depending on the rotation angle of the pin 52, the recess 111d provided in the protrusion 111c and the pin 52 can engage with each other or pass through.

In this embodiment, the gripping devices P are of a stationary type arranged in a line on the base 7 during operation, but two pairs of the gripping devices P may be used as an inverted type. Next, the configuration of the gripping device storage device 12 will be described with reference to FIG. 60 is a frame, 61 (61a, 61b, 61
c) is a roller conveyor (storage shelf) fixed to the frame 60, and H _{1 to} H ₆ are storage positions of the gripping device P stored on the storage shelf 61.

Reference numeral 62 denotes a guide rail which is fixed to the frame 60 and extends vertically, 63 denotes an elevating frame of a carrying device which is supported by the guide rail 62 so as to be able to ascend and descend, 64a, 6
4b is a roller conveyor fixed to the lifting frame 63,
Reference numeral 65 is a roller conveyor for the delivery position H ₉ of the gripping device P fixed to the PCI base 7. In this example,
A lifting device 66 for maintenance having an attachment / detachment device 66a having the same configuration as the attachment / detachment device 10b of the transfer device 9 is supported by a guide rail 62 so as to be able to move up and down.

Next, the operation of the pneumatic tire gripping and cooling device and the storage device shown in FIGS. 1 to 6 will be specifically described. FIG. 1 shows a mold opening / closing device 13, an unloader 14, and a loader 1 in a state immediately before the completion of tire vulcanization in the tire mold M ₁ .
5 and 5 gather at the mold M ₁ position, and the loader 15 grips an unvulcanized tire to be subsequently vulcanized.

After vulcanization, the heating and pressurizing medium inside the tire
When the discharge of the mold is started, the arm 21 of the mold opening / closing device 3
It moves down and the mold attaching / detaching device 22 and the upper center mechanism 23
By the action, the arm 21 and the mold M₁And are connected. Thailand
When the pressure in the ya has dropped sufficiently, raise the arm 21.
Tire mold M ₁Open, then lower center mechanism (illustrated
Action) pushes the lower bead ring up and
Remove the ear T from the lower mold and pull the bladder into the lower center mechanism.
After unpacking and storing, shake the gripping mechanism 4b of the unloader 4.
Move and lower to grip the vulcanized tire T, raise and rock
Let it hang. After the vulcanized tire T has been hung,
Shake the unvulcanized tire to be vulcanized next held by Da 5.
Move and lower to install in the tire mold. Tire mold
After the installation of the unvulcanized tire inside, the gripping mechanism 5b
Release the tires, raise, rock (and drive if necessary)
Then, remove the unvulcanized tire into the unvulcanized tire supply device 6.
go to.

The vulcanized tire T hung by the unloader 4 is supplied to the PCI (P ₁ or P _{2 in} the state of FIG. 1) with the unloader running as necessary. FIG. 3 shows a state immediately before the tire T is gripped and inflated and cooling is completed. When cooling is completed, the compressed gas passage 101b
The compressed gas in the tire T is discharged via the, and then the bayonet shaft 104 is rotated to release the engagement between the claws 104a and 111a, and then the arm 10a of the transfer device 9 is raised to move the upper rim portion. (Lock housing 111, spacer 110, upper rim 109) is raised.

When the upper rim portion rises, the arm 10c of the unloader is swung and moved up and down so that the gripping mechanism 10d grips the cooled tire and transfers it to the delivery conveyor 11 to carry in the next uncooled tire. wait. The unloader 4 carries in the vulcanized uncooled tire, and leaves the tire still on the lower rim 103 and moves to the standby position, after which the arm 10a descends,
The upper rim 109 is brought into contact with the upper bead portion of the tire T, the upper bead portion is slightly pushed down, and then the bayonet shaft 104 is rotated to a position where the claw 104a and the claw 111a can be engaged with each other. Next, compressed gas is fed into the inside of the tire T through the passage 101b, and the compression spring 53 is compressed until the pawls 104a and 111a are engaged with each other, and the upper bead portion is lifted up. The upper bead portion is locked to the lower bead portion by the engagement of. After this lock is completed, the pin 52 is rotated to release the engagement with the recess 111d of the lock housing 111, raise the arm 10a, and then to the position of the gripping device P where the cooling is finished. After the movement, the arm 10a is lowered and connected to the lock housing of the gripping device P, and the cooling is completed.

When the rim is replaced, the cooled tire T is hung by the unloader, and then the arm 10a is lowered without accepting the next tire, and the claw 104a and the claw 11 are moved.
1a is in an engageable state, the lever 112 is swung,
After the lock with the base 7 is released, the arm 10a is raised to lift the gripping device P. Then, the transport device 9 is sent to transfer the gripping device P onto the roller conveyor 65 at the delivery position H ₉ , and the pin 52 is rotated to release the connection and the arm 10a is lifted to move the gripping device P. Wait for replacement.

When the replacement of the gripping device P is completed, the gripping device P is transferred to the original position and locked to the base 7 by the procedure reverse to the above. In FIG. 6, since the gripping device P to be used next is prepared on the roller conveyor 64a of the storage device 12, the gripping device P transferred to the delivery position H ₉ is
By the action of the roller conveyors 64b and 65, it is moved to the H ₈ position, and then the elevating frame 63 is lowered to bring the roller conveyor 64a to the same level as 65, and then the action of the roller conveyors 64a and 65 causes the H ₇ position. The gripping device is moved to the H ₉ position, and the replacement of the gripping device P is completed.

Storage that was empty in the storage device 12
Position is H₂If so, roll the roller conveyor 64b
The roller conveyor 61a to the same level and then
Due to the action of the conveyor 61a and the roller conveyor 64b, H
₁The gripping device of₂To H,₂To H
₁To H₈To H₂You can move to. You should prepare next
The gripping device P is H₂(Or H_Four, H₆), Then
Grip device P to H₇Or H₈Move to the position
H₁(Or H₃) In case of H₂(Or H_Four)
Once H₇(Or H₈), Then H₁(Or
H ₃) H₈(Or H₇), H₇(Or
H₈) H₂(Or H_Four).

In the case of H ₅ , the gripping device P for H ₆ is set to H.
₇ , move H ₅ to H ₉ via H ₈ once, then H
₄ may be moved to H ₆ , H ₇ may be moved to H ₄ , and H ₉ may be moved to H ₇ or H ₈ . During this period, if necessary, the lifting device 66 is used to replace the rim and the spacer.

[0028]

As described above, the gripping / cooling device for a pneumatic tire of the present invention can be moved to a place where the scaffolding has a good scaffolding, and the gripping device after the rim replacement is prepared in advance. If it is replaced with this, the work can be performed in a short time, and the operating rate of the equipment can be significantly improved.

In addition, in a multi-type tire vulcanization facility that has a storage device for a gripping device that can be automatically selected, and the mold opening / closing device is also used for a plurality of sets of tire molds, the mold opening / closing device, etc. can be moved. It is possible to prevent an increase in the risk associated with the above, and to quickly respond to a change in the size knitting of the vulcanized tire without disturbing the vulcanization cycle time of other molds.

[Brief description of drawings]

FIG. 1 is a plan view showing the outline of a tire vulcanization facility to which a pneumatic tire gripping and cooling device of the present invention is applied.

FIG. 2 is a front view taken along the line aa in FIG.

3 is a vertical cross-sectional side view taken along the line bb of FIG.

FIG. 4 is a cross-sectional bottom view showing one aspect taken along the line dd of FIG.

5 is a cross-sectional bottom view showing another mode along the line dd in FIG.

6 is a rear view taken along the line cc of FIG.

[Explanation of Codes] 7 PCI Base 8 Track P (P ₁ , P ₂ , ...) Gripping Device 10 Loader 10a Lifting Device Arm 10b Elevating Device Attaching / Detaching Device 10c Unloader Arm 10d Unloader Tire Gripping Mechanism 103 Lower Rim 109 Upper Rim 12 Storage device 14 Unloader 61a to 61c Storage rack (belt conveyor) 13, 64a, 64b Conveying device T Tire

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[Procedure amendment]

[Submission date] December 15, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

In addition, in a tire vulcanizer of the type in which a mold opening / closing device, a loader, and an unloader are used together for loading and unloading tires of a plurality of sets of tire molds, a tire mold transfer device or The mold opening and closing device is running,
In addition to high risk, there is a problem that the vulcanizing pitch of the mold other than the size-changing mold is disturbed, and the operating rate of the device is poor.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

The present invention is proposed in view of the above problems, and an object thereof is to provide a pneumatic tire capable of significantly improving the operating rate of equipment and promptly responding to a change in size of a vulcanized tire. The present invention aims to provide a grip cooling device for use with the grip.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

The pneumatic tire grip cooling device of the present invention is configured as described above. (1) During normal operation, the lower rim portion of the grip device is locked to the base, and the lock between the upper and lower rims is released. Then, the upper rim portion is hoisted by the transport device, the cooled tire is hoisted by the unloader, and the uncooled tire is hoisted by the unloader of the tire vulcanizing device. Next, lower the upper rim, lock the upper and lower rims, introduce pressure gas inside the tire, inflate the tire,
Enter the cooling process. After entering the cooling process, move the transfer device and unloader to the gripping device where cooling is finished,
Wait for tires to cool down and release the tire pressure.
(2) When replacing the rim, after hanging the cooled tire,
The upper rim portion is lowered to lock the upper and lower rims, and the lock between the lower rim portion and the base is released, and then the upper rim portion is lifted together with the lower rim portion and transferred to the delivery position. After the rim exchange or the like, or after the rim exchange or the like with the gripping device is exchanged, the rim is transferred to the original position in the reverse order to open the space between the upper and lower rims and receive the next tire. (3) When the gripping device is transported to the delivery position, the gripping device is stored in the empty position of the storage shelf via the transport device of the storage device, and the gripping device to be used next is transferred from the storage shelf to the delivery position. . It is desirable that the storage device is provided with a lifting device for exchanging rims.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction content]

Reference numeral 10b denotes an attaching / detaching device for the transporting device 9, and the attaching / detaching device 10b is slidably and vertically movable in a hole provided at the tip of the arm 10a. And the detachable device 1
0b is a shaft 51 attached to the arm 10a, a block 51a integrally formed at the lower end of the coaxial shaft 51, and an arm 1
Compression spring 53 interposed between 0a and the block 51a
The lock housing 111 includes a stopper 54 fixed to the upper end of the shaft 51, a pin 52 rotatably inserted in the block 51a, and a swing rotation driving means (not shown) for the pin 52. Protrusion 1 formed on the top
The block 51a is formed with a recess for slidably receiving 11c. Depending on the rotation angle of the pin 52, the projection 1
The recess 111d provided in 11c and the pin 52 can engage with each other and can pass through.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0024

[Correction method] Change

[Correction content]

When the rim is replaced, the cooled tire T is hung by the unloader, and then the arm 10a is lowered without accepting the next tire, and the claw 104a and the claw 11 are moved.
1a is engaged, the lever 112 is swung to release the lock with the base 7, and then the arm 10a is lifted to lift the gripping device P. Then, the transport device 9 is sent to transfer the gripping device P onto the roller conveyor 65 at the delivery position H ₉ , and the pin 52 is rotated to release the connection and the arm 10a is lifted to move the gripping device P. Wait for replacement.

Claims (2)

[Claims] 1. A grip cooling device for a pneumatic tire, which grips and expands a high temperature vulcanized tire sent from a vulcanizer to cool the tire, wherein the grip cooling device for a pneumatic tire is detachably attached to a base of the grip cooling device for a pneumatic tire. And a plurality of sets of gripping devices, each having a pair of tire gripping rims, and an elevating device that travels on tracks that are arranged in parallel with each of the gripping devices to raise and lower the upper rim or the gripping device at each tire gripping position. A gripping and cooling device for a pneumatic tire, comprising: an unloader that carries out a cooled tire at the tire gripping position. 2. A storage shelf for storing the plurality of sets of gripping devices, and a transfer device for selecting and picking up the gripping device from the storage rack and storing the picked-up gripping device by selecting an empty position of the storage rack. The grip cooling device for a pneumatic tire according to claim 1, further comprising a storage device.