JPH0592497A - Tire loading and unloading device for tire vulcanizer - Google Patents

Abstract

(57) [Summary] (Modified) [Object] The present invention provides a simple tire vulcanizer tire loading / unloading in which the manipulator strut spacing is sufficiently narrow and only one cylinder is used as the swing drive means. A device is provided. A guide frame 1, an elevating frame 4 that slides up and down by being guided by the guide frame 1, a drive unit that elevates and lowers the elevating frame 4, and a first frame that is horizontally swingably attached to the elevating frame 4. 1 arm 7 and the 1st arm 7
Arm 12 that is horizontally swingably attached to the tip of the arm
A link connecting the elevating frame 4 and the second arm 12 via a pin, a drive means for simultaneously swinging the first arm 7 and the second arm 12, and an assembly at the tip of the second arm 12. Tire loading / unloading device for a tire vulcanizer, which comprises the tire gripping means 17 to 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire loading / unloading device for a tire vulcanizer.

[0002]

2. Description of the Related Art In a conventional rocking type tire loading / unloading apparatus shown in FIG. 5, for example, the locus of the center of the tire T, that is, the center P41 of the gripping means L24 is centered around the rocking center P40. Since it becomes an arc P42 passing through the center P43, there is no choice but to shift the rocking timing in order to prevent interference with the phosphorus loading / unloading device L5, and this waiting time extends the cycle time of the machine and the nylon cord. There is also an adverse effect on the quality of tires, such as when unloading tires.

As a countermeasure against this, a device has been proposed in which the gripping means L42 is slidable on the swinging arm L41 and the swinging radius of the gripping means L41 is made small, but it is necessary to add a driving means to complicate the structure. And swing arm L41
The position of the swing center P40 is still restricted in order to prevent interference at the tip of the, and there are cases in which it cannot be implemented. FIG. 4 shows a tire loading / unloading device proposed to solve the above-mentioned problems in the prior art.

In FIG. 4, L2 is an unvulcanized tire carry-in device, and L3 is a vulcanized tire carry-out device. Since the carry-in device L2 and the carry-out device L3 have the same basic configuration, only the carry-in device L2 is shown. explain. The carry-in device L2 is a guide frame L21 fixed to the pillar MA1 of the manipulator.
An elevating frame L22 that slides up and down by being guided by a guide frame, an elevating drive means (not shown), and a first arm L23 that is horizontally swingably attached to the elevating frame L22.
A swing drive cylinder L24 for the first arm L23, a second arm L25 that is horizontally swingably attached to the tip of the first arm L23, a swing drive cylinder L26 for the second arm L25, and a second It is composed of a gripping means L27 for the unvulcanized tire T attached to the tip of the arm L25.

The center P23 of the unvulcanized tire T gripped by the gripping means L27 is first caused by the action of the cylinder L24.
When the first arm L23 is swung, the swing center P of the first arm
It is moved to P25 through an arc P24 centered on 21. Next, the action of the cylinder L26 causes the second arm L2 to move.
5 oscillates and passes through the arc P26 to reach the mold center P27. After that, it is allowed to stand on the mold by a known method. still,
P28 is the center position of the gripping means during standby.

[0006]

The above-mentioned prior art has the following problems. In order to avoid interference between adjacent tire loading / unloading manipulators, it is necessary to take measures such as (1) staggering the swing timing of the adjacent manipulators, or (2) increasing the spacing between the manipulator columns.

However, according to the above measure (1), the cycle of the tire vulcanizer becomes long, which may adversely affect the tire quality. According to the above measure (2), the installation area of the entire tire vulcanization facility becomes large. According to the apparatus shown in FIG. 4, the required strut spacing of the manipulator is greatly improved, but there are still restrictions on interference prevention, and two cylinders are required as the swing drive means.

The present invention eliminates the above problems in the prior art, has a sufficiently small manipulator strut spacing, and has a simple tire vulcanizer tire structure having only one cylinder as the swing drive means. It is intended to provide a loading / unloading device.

[0009]

[Means for Solving the Problem] One side of a quadrilateral link having different lengths is fixed, one end of the link facing the fixed side is extended, and the lengths of the extension and the four sides are appropriately selected. Thus, the locus of the extended end of the extended portion can be S-shaped. Therefore, the fixed link is attached to a frame that can be raised and lowered, one of the links connected to the fixed link is used as the first arm, and the opposite side link and a part or all of its extension are used as the second arm. Is arranged at the extended end of the opposite side link, and the first arm is rockably driven.

[0010]

With the above-mentioned structure, if the lengths of the quadrilateral link and the opposite side link extension are selected in advance so as not to interfere with related parts when the tire is carried in and out, the action of the swing drive means When the first arm is swung, the grip center draws an S-shaped locus and moves between the mold center and the tire delivery position.

[0011]

EXAMPLE An embodiment of the present invention in a tire vulcanization system of a type in which a manipulator including a mold opening / closing device, an unvulcanized tire loading device, and a vulcanized tire unloading device moves between a plurality of mold units. 1 to 3 will be described.
In FIG. 1, F is a common base, C is a plurality of sets of mold units, and the mold unit C is a lower mold unit CD including a lower mold portion fixed to a common frame, a bladder operating mechanism, and the like. And an upper mold unit CU which is detachably attached to the lower mold unit CD and includes an upper mold part, a mold lock mechanism, and the like. MA is rail F1 and bearer MA
The manipulator is movably mounted on a common base F via a mold opening / closing device incorporated in the upper part of the inside, and an unvulcanized tire lifting device L1 is installed in the upper part of the front surface of the front support part M.
An unvulcanized tire carry-in device L is attached to A1, and a vulcanized tire carry-out device (not shown) is attached to the rear strut.

Next, the unvulcanized tire loading device L will be described in detail with reference to FIGS. The carrying-in device L used in the present embodiment includes a guide frame 1 bolted to the column MA1, a rail 2 bolted to the guide frame 1, a beer ring 3 that engages with the rail 2 and slides, and a beer ring 3. An elevating frame 4 fastened by bolts, an elevating frame elevating and lowering drive means 5 (not shown in detail), one end of which is connected to the guide frame 1 and the other end thereof to the elevating frame 4, and an elevating frame 4 that is horizontally swingable via pins 6. First assembled in
First arm swing drive means connected via an arm 7, a pin 8 attached to the other end of an arm 4a whose one end is fixed to the lifting frame 4 and a pin 10 fixed to the first arm 7. 9, a second arm 12 that is horizontally swingably attached to a first arm 7 via a pin 11, a lever portion 13 of the second arm, and the elevating frame 4 are connected via pins 14 and 16. It is composed of a link 15 and a known tire gripping means fixed to the tip of the second arm 12, and the portion 4b between the pins 6 and 16 of the elevating frame 4, the lever of the first arm 7 and the lever of the second arm. Part 13 and link 15
Form a quadrilateral link having the link 4b as a fixed side.

In this system, since the gripping and conveying of the unvulcanized tire is performed by the external gripping method, the tire gripping means has a plurality of gripping claws 21 on the pair of bearer rings 19 that engage with the rails 18 fixed to the bracket 17. Holding arm 20 having
Are fixed and the gripping arm 20 is moved toward and away by a driving means (not shown) to grip and release the tire. However, if necessary, other known gripping means may be replaced. I can.

The solid lines in FIGS. 2 and 3 show a state in which the unvulcanized tire T has been loaded to the mold center position P1. At this position, the unvulcanized tire T is inserted into the upper mold by the action of a chuck mechanism (not shown) incorporated in the upper mold unit. If the gripping mechanism is replaced with another type, the tire can be left stationary on the lower mold MD by the action of the lifting means 5.

After the insertion of the unvulcanized tire T into the upper mold is completed, when the first arm is swung by the action of the swing drive means 9, the center of the gripping means is brought about by the action of the quadrilateral link. Passes through the S-shaped locus P2 and receives the unvulcanized tire receiving position P3
Reach, open the gripping arm and wait. When the unvulcanized tire that has been gripped inward and lifted by the unvulcanized tire lifting device L1 to be subsequently vulcanized reaches the gripping position,
When the grip arm 20 is closed and the tire T is gripped, the state shown by the chain double-dashed line in FIG. 2 is obtained. At this time, the first arm 7 is 7
a, the second arm 12 is at the position 12a, the link 15 is at the position 15a, and the bracket 17 of the gripping means is at position 1.
It's at position 7a.

Next, the rocking drive means 9 is made to act in reverse,
When the first arm 7 is swung in the opposite direction to the above, the grip center, that is, the tire center, moves backward in the S-shaped locus P2 and moves from P3 to P1. Regarding the vulcanized tire unloading device,
Except for the fact that a gripping means of a type suitable for lifting a vulcanized tire is mounted, the gripping means has exactly the same configuration as the unvulcanized tire carry-in device, and therefore, illustration and detailed description thereof will be omitted.

[0017]

INDUSTRIAL APPLICABILITY The present invention relates to a tire loading / unloading device for loading an unvulcanized tire into a tire vulcanizer or for unloading a vulcanized tire. An elevating frame that slides and elevates, a drive unit that elevates and lowers the elevating frame, a first arm that is horizontally swingably assembled to the elevating frame, and a horizontally swingable assembly that is attached to the tip of the first arm. A second arm, a link for connecting the elevating frame and the second arm via a pin, a drive means for simultaneously swinging the first arm and the second arm, and an assembly at the tip of the second arm. The tire holding means has the following effects.

By selecting the length of the four-sided link or the like as the cutoff, the locus of the gripping center can be set to be substantially the center of the column. Therefore, there is practically no interference between the column portion and the tire loading / unloading device, and only one type of rocking drive means can be provided, resulting in cost reduction.

[Brief description of drawings]

FIG. 1 is an overall front view with a part of an embodiment of the present invention omitted.

FIG. 2 is a view on arrow AA of FIG.

FIG. 3 is a view taken along the line BB of FIG.

FIG. 4 is a drawing corresponding to FIG. 2 in a conventional device.

FIG. 5 is a plan view of a tire vulcanizer provided with a conventional tire loading / unloading device.

[Explanation of symbols]

 1 Guide frame 4 Lifting frame 5 Lifting driving means 7 First arm 12 Second arm 15 Connecting link 9 Swinging driving means 17 Tire gripping means 18 〃 19 〃 20 〃 21 〃 4b Quadrilateral link 7 〃 13 〃 15 〃

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Claims (1)

[Claims] 1. An unvulcanized tire is loaded into a tire vulcanizer,
Alternatively, in a tire loading / unloading device for loading a vulcanized tire, a guide frame, an elevating frame that slides up and down by being guided by the guide frame, a drive unit that elevates the elevating frame, and a horizontal swing on the elevating frame. A first arm that is assembled as possible, a second arm that is horizontally swingably assembled at the tip of the first arm, a link that connects the lifting frame and the second arm via a pin, A tire vulcanizer tire loading / unloading device, comprising: a driving means for simultaneously swinging the first arm and the second arm, and a tire gripping means assembled to the tip of the second arm.