JPH1016084A - Tire loading / unloading method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of loading and unloading tires and a device therefor, which can reliably work without deforming or damaging unvulcanized tires and vulcanized tires. Is what you do. A tire loading / unloading device (10) is mounted on a support frame (12) erected on a base plate (11) by means of a turning drive means (15).
Is installed. On the upper surface of the tire support frame 16,
A guide roller 17 for mounting the vulcanized tire Wa is provided, and a tire holding means 18 is provided at a turning-side terminal portion of the tire support frame 16. Tire support frame 1
6 is provided with a support plate 22 which can be raised and lowered in a vertical direction via lifting / lowering means 21, and holds the unvulcanized tire W via a guide member 23 at a substantially central portion of the support plate 22. An unvulcanized tire W to be clamped is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for loading and unloading large tires such as tires for construction vehicles and a device therefor, and more particularly to loading green tires into a vulcanizer and molded tires from the vulcanizer. The present invention relates to a method for loading and unloading tires, and a device therefor, capable of automatically performing unloading of tires without manual intervention.

[0002]

2. Description of the Related Art Conventionally, large unvulcanized tires (green tires) such as tires for construction vehicles are transported from a molding machine to a vulcanizer and carried into a mold, and vulcanized by a vulcanizer. As a method of carrying out the vulcanized tire, for example, the following method has been used. First, as a method of transferring an unvulcanized tire from a molding machine to a vulcanizer and carrying it into a mold, the method is performed by steps (A) to (H) in FIG.
A cylindrical unvulcanized tire W molded by a tire molding machine (not shown) has a transport carriage 1 called a hammock carriage.
It is mounted on a cylinder in a horizontal state (step (A)) and transported to the vicinity of a tire vulcanizer (not shown).

[0003] Next, the unvulcanized tire W placed on the transfer carriage 1 in a cylindrical sideways state is lifted by the crane hook 2 (step (B)), and the unvulcanized tire W is placed on the circular carriage 3 in a cylindrical form. Hang it down in the vertical state (step (C)). When the cylindrical vertical placement of the unvulcanized tire W on the circular carriage 3 is completed (step (D)), the unvulcanized tire W is moved to a predetermined position in the vicinity of the tire vulcanizer, and a plurality of expansion / contraction called a vertical loader is performed at this position. A vertically movable, swingable transfer device 5 equipped with a holding claw 4 holds one inner surface of the unvulcanized tire W in a cylindrical vertical position and lifts it from above the circular carriage 3 ((E),
(Step (F)), the vulcanizer is swirled and moved onto the lower mold 6 (Step (G)).

Then, the unvulcanized tire W is lowered by inserting the hollow portion of the unvulcanized tire W suspended by the transfer device 5 onto the bladder 7 located at the center of the lower mold 6. The insertion of W is completed ((H) step). From this state, vulcanization is performed for a certain period of time by placing an upper mold (not shown), and vulcanization molding of the unvulcanized tire W is performed.

[0005] Next, as a method of unloading the vulcanized tire, when the vulcanization molding of the unvulcanized tire W is completed, the upper mold (not shown) is turned to open and is inserted into the bladder 7. The lower surface side of the vulcanized tire Wa is supported by an up-and-down support arm 8 provided on the vulcanizer side, and is raised above the bladder 7 (step (I)). Then, after a nylon sling 9 attached to an overhead traveling crane (not shown) is inserted into a part of the vulcanized tire Wa, the vulcanized tire Wa is lifted by the overhead traveling crane ((J) process), and the weight of the vulcanized tire Wa is reduced. After the vertical orientation ((K)
Step), the vulcanized tire Wa is hung on the floor 10 and rolled out to the next step (Step (L)).

[0006]

However, in the conventional method of transferring an unvulcanized tire W from a molding machine to a vulcanizer and carrying it into a mold, the crane hook 2 In this method, the inner surface of the tire is damaged by a hook, and when the large unvulcanized tire W is hung by the crane hook 2 and conveyed, the unvulcanized tire W shakes. This is extremely dangerous, and the same is true when the vulcanized tire Wa is suspended and transferred by an overhead traveling crane after vulcanization molding.

That is, large tires such as construction vehicle tires have a diameter of several meters and a weight of several hundred kgf. Workers are extremely dangerous.
In the conventional loading operation of the unvulcanized tire W, the unvulcanized tire W is conveyed to a bladder 7 located at the center of the lower mold 6 by a conveying device 5 called a vertical loader. In carrying out from the vulcanizer, it is necessary to take out the vulcanized tire Wa in a vertically oriented state (to allow the tire to be placed on the floor and rolled up), The nylon sling 9 attached to the overhead traveling crane is used. However, there are problems such as damage to the vulcanized tire or damage to the vulcanizer when the sling 9 is inserted or lifted. .

The present invention has been devised in view of such a conventional problem, and is a transporting device for holding an inner surface of a tire by carrying in and out of an unvulcanized tire and a vulcanized tire to and from a vulcanizer. By grasping and performing, it is possible to work reliably without deforming or damaging the unvulcanized tire and vulcanized tire. , Can be automatically changed to the vertical orientation and arranged, so that the unvulcanized tire can be easily removed by the conveyor and the unloading of the vulcanized tire is automatically changed to the vertical orientation. Therefore, it is an object of the present invention to provide a method of loading and unloading tires and a device therefor, which can easily transport the vulcanized tire while rolling it.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a tire support frame which can be turned by a turning drive means with a support shaft as a fulcrum, on support frames which are erected on opposite sides of a base plate. And a rotatable guide roller on which the vulcanized tire is mounted is disposed on the upper surface of the tire support frame, and the vulcanized tire that rotates with the tire support frame at a turning-side terminal portion of the tire support frame. A retractable and revolvable tire holding means for holding a peripheral surface and a side surface of the tire; a support plate which can be raised and lowered via a lifting drive means inside the tire support frame; A guide member projecting in a direction perpendicular to the support plate, and the unvulcanized tie carried into the guide member to the position of the support plate. It is an gist in that a clamping means of the unvulcanized tire to hold the bead portion and the inner surface portion.

The unvulcanized tire clamping means includes a bead support block mounted on a side surface of a support plate, a revolving arm having an inner surface holding roller mounted on a tip thereof, and a revolving arm mounted on the inner surface of the unvulcanized tire. And a turning means for turning to the maximum. The present invention is configured as described above, and moves the unvulcanized tire conveyed by the transfer means from the state in which the guide rollers provided on the upper surface of the tire support frame are horizontally positioned to the cylindrical sideways state, and the hollow portion thereof. After inserting the unvulcanized tire to a predetermined position in the tire support frame while inserting the unvulcanized tire to a bead support position of the support plate, and clamping means provided in the guide member After holding the tire inner surface portion of the unvulcanized tire, the tire is raised to a predetermined position.

On the other hand, a vulcanized tire formed by a vulcanizer is placed horizontally and horizontally on a guide roller in a horizontal state provided on an upper surface of a tire support frame by a conveying means. The vulcanized tire is clamped by the clamp means, and the tire support frame is turned by 90 degrees from the horizontal state through the turning drive means and with the support shaft as a fulcrum, and simultaneously placed on the guide roller of the tire support frame. The vulcanized tire being held is held by the tire holding means to be in a vertical state, and the holding state of the tire holding means is released to allow the vulcanized tire to be carried out while rolling, while the vulcanized tire is clamped by the clamp means in a vertical direction. Unclamp the unvulcanized tire in the state,
By lifting the unvulcanized tire by the conveying means and carrying it out to the vulcanized side, the unvulcanized tire and the vulcanized tire can be reliably worked without being deformed or damaged. The removal of the vulcanized tire can be easily performed by the transporting device, and the vulcanized tire is automatically changed to the vertical direction. is there.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The same components as those of the conventional example are denoted by the same reference numerals, and description thereof will be omitted. FIG. 1 is a front view of a tire loading / unloading device showing one embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA of FIG. 3, showing a tire loading / unloading device showing an internal structure. FIG. 3 is a side view of FIG. 1, and FIG. 4 is a front view showing an operating state of the tire loading / unloading device.

The tire loading / unloading device 10 is shown in FIG.
As shown in FIG. 4, a base end is fixed to the base plate 11 with a support shaft 14 supported via a bearing 13 as a fulcrum on a support frame 12 erected on both sides facing each other on the base plate 11. A tire support frame 16 that can be turned by turning drive means 15 such as two left and right hydraulic cylinders is mounted.

On the upper surface of the tire support frame 16,
A plurality of rotatable guide rollers 17 on which the vulcanized tire Wa is placed are disposed in parallel with each other, and swivel together with the tire support frame 16 on a turning-side end portion (left end portion in the figure) of the tire support frame 16. Vulcanized tire Wa
And a turnable tire holding means 18 for holding the circumferential surface and the side surface of the tire.

When the plurality of guide rollers 17 of the tire support frame 16 are turned by 90 degrees, the tire holding means 18 is provided with a support rod 19 for supporting the peripheral surface of the vulcanized tire Wa mounted on its upper surface. And a holding rod 20 having an L-shaped cross section for supporting a side surface of the vulcanized tire Wa provided at a position facing the supporting rod 19, and the supporting rod 19 is provided with a guide roller 17 via a cylinder 19a. The holding rod 20 is protruded and retracted from the upper surface of the guide roller 17 via the cylinder 20a, and the tip of the holding rod 20 is rotated in parallel with the upper surface of the guide roller 17. It is configured.

Inside the tire support frame 16,
As shown in FIGS. 2 and 3, a support plate 22 which can be vertically raised and lowered via lifting means 21 such as two hydraulic cylinders on the right and left is provided. A guide member 23 protrudes in a direction perpendicular to the plate 22. Above the guide member 23, a part of a clamp means 24 of the unvulcanized tire W that holds a bead portion Wx of the unvulcanized tire W is formed. Bead support block 2
4a is projected.

The guide member 23 is configured to be able to advance and retreat in the horizontal direction via a cylinder 25. The guide member 23 has an inner surface Wy of the unvulcanized tire W which has been carried into the position of the support plate 22. Clamping means 2 for holding
4 is provided. The clamp member 26 is a caster 2 that can be pivoted to the tip.
Inner surface holding roller 28 rotatably mounted via 7
And a turning means 30 such as a cylinder for turning the turning arm 29 to the inner surface Wy of the unvulcanized tire W with the pin 29a provided on the guide member 23 as a fulcrum.

Next, a method for loading and unloading tires is shown in FIG.
With reference to (A) to (L), a description will be given of a step of carrying the unvulcanized tire W into a vulcanizer (not shown) and a step of carrying out a vulcanized tire Wa vulcanized and formed by the vulcanizer. I do. First, the step of loading the unvulcanized tire W into a vulcanizer (not shown) will be described. As shown in the step (A) of FIG.
The guide member which has the unvulcanized tire W conveyed by a transfer means such as a bogie (not shown) in a horizontal state and a hollow portion thereof protrudes in the tire support frame 16 in a horizontal direction from a state in which the tire is horizontally positioned. 23 and at the same time as the bead support block 24a of the support plate 22 (step (B) in FIG. 5).

After the unvulcanized tire W is inserted to a predetermined position in the tire support frame 16, the turning means 30 of the clamping means 24 provided on the guide member 23 is driven to move the turning arm 29 to the guide. After pivoting to the inner surface Wy of the unvulcanized tire W using the pin 29 a provided on the member 23 as a fulcrum, and holding the tire inner surface portion Wy of the unvulcanized tire W by the inner surface holding roller 28 provided at the tip of the turning arm 29 Then, it is raised to a predetermined position via lifting means 21 such as a hydraulic cylinder (steps (C) and (D) in FIG. 5).

At the same time, a horizontal guide roller 17 provided on the upper surface of the tire support frame 16
The vulcanized tire Wa formed by the vulcanizing machine is placed horizontally and horizontally by the conveying means 2 such as a vertical loader (FIG. 5).
(E) step). Thereafter, the tire support frame 16 having the unvulcanized tire W clamped is turned by 90 degrees from a horizontal state through turning drive means 15 composed of two hydraulic cylinders and with the support shaft 14 as a fulcrum. At the same time, the peripheral surface and the side surface of the vulcanized tire Wa placed on the guide roller 17 of the tire support frame 16 are held vertically by the tire holding means 18 (FIGS. 5F and 5F). G) Step).

After the holding state of the tire holding means 18 is released and the vulcanized tire Wa is once mounted on a road surface or the like, the vulcanized tire Wa is carried out to the next step while rolling. On the other hand, the unvulcanized tire W which has been clamped by the clamp means 24 and is in a vertically oriented state is released (step (H) in FIG. 5), and the unvulcanized tire W is transported by a transporting means 2 such as a vertical loader. W is lifted and swung toward the vulcanization side (step (I) in FIG. 5), and the hollow unvulcanized tire W is placed on the bladder 7 located at the center of the lower mold 6 by a method similar to the conventional method. The insertion of the unvulcanized tire W is completed by lowering the part so as to insert it. From this state, vulcanization is performed for a certain period of time by placing an upper mold (not shown), and vulcanization molding of the unvulcanized tire W is performed.

During the vulcanization molding step of the unvulcanized tire W,
As shown in steps (J) to (L) of FIG. 5, the guide roller 17 of the tire support frame 16 in the vertical state is turned to the horizontal state via the turning drive means 15 and the support shaft 14 as a fulcrum. The preparation for carrying in the next unvulcanized tire W and vulcanized tire Wa is performed. Next, as a method for unloading the vulcanized tire Wa, the unvulcanized tire W
When the vulcanization molding of the vulcanization molding is completed, the upper mold (not shown) is turned to open, and the lower surface side of the vulcanized tire Wa inserted into the bladder 7 is moved up and down by the support arm provided on the vulcanizer side. The upper bead portion of the vulcanized tire Wa is clamped and lifted horizontally by the transporting means 2 such as a vertical loader and the like, and the transporting means 2 is turned and moved by the transporting means 2 such as a vertical loader. The vulcanized tire Wa held in a horizontal state is placed on a guide roller 17 of a tire support frame 16 in a horizontal state.

After the vulcanized tire Wa is placed on the guide roller 17, the tire supporting frame 16 is turned 90 degrees by the above-described method to bring the vulcanized tire Wa upright. Later, they will be carried out. In the embodiment of the present invention, as described above, the unvulcanized tire W is carried into the vulcanizer and the vulcanized tire Wa is carried out by using the conveying means 2 such as a vertical loader in combination. It is possible to reliably carry in and carry out the rubber tire W and the vulcanized tire Wa without damaging or deforming the tire.

[0024]

According to the present invention, as described above, the loading and unloading of the unvulcanized tire and the vulcanized tire to and from the vulcanizer can be performed by gripping the transport device holding the inner surface of the tire. Therefore, the work can be carried out securely and safely without deforming or damaging the unvulcanized tire and the vulcanized tire. It can be automatically changed and placed in the vertical direction, so that unvulcanized tires can be easily taken out by the conveyor, and the unloading of vulcanized tires is automatically changed in the vertical direction. In addition, the vulcanized tire can be easily carried out while rolling, and the working efficiency can be significantly improved.

[Brief description of the drawings]

FIG. 1 is a front view of a tire loading / unloading device according to an embodiment of the present invention.

2 is a cross-sectional view taken along the line AA of FIG. 3, and is a front view showing an internal structure of a tire loading / unloading device.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a front view showing an operating state of a tire loading / unloading device.

FIGS. 5A to 5L are explanatory views of a step of carrying an unvulcanized tire into a vulcanizer and a step of carrying out a vulcanized tire vulcanized and formed by the vulcanizer. .

6 (A) to 6 (L) are explanatory views of a step of carrying an unvulcanized tire into a conventional vulcanizer and a step of carrying out a vulcanized tire vulcanized and formed by the vulcanizer. It is.

[Explanation of symbols]

Reference Signs List 10 tire loading / unloading device 11 base plate 12 support frame 13 bearing 14 support shaft 15 turning drive means 16 tire support frame 17 guide roller 18 tire holding means 19 support rod 19a cylinder 20 holding rod 20a cylinder 21 elevating means 22 support plate 23 guide Member 24 Clamping Means 24a Bead Support Block 25 Cylinder 26 Clamping Member 27 Caster 28 Inner Surface Holding Roller 29 Swivel Arm 29a Pin 30 Swivel Means W Unvulcanized Tire Wa Wa Vulcanized Tire Wx Bead Part of Unvulcanized Tire Wy Unvulcanized Tire Inside

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location B29L 30:00 (72) Inventor Toru Kihara 20th Higashi-Onomichi, Onomichi-shi, Hiroshima Yokohama Rubber Co., Ltd. Onomichi Plant

Claims (3)

[Claims] 1. An unvulcanized tire conveyed by a transfer means is placed in a cylinder sideways state from a state in which a guide roller provided on an upper surface of a tire support frame is horizontally positioned, and a hollow portion thereof is inserted into the tire support frame. After inserting the unvulcanized tire to a predetermined position in the tire support frame while inserting the unvulcanized tire to the bead support position of the support plate, the unvulcanized tire is inserted by the clamp means provided on the guide member. After holding the inner surface of the tire, the tire is raised to a predetermined position, and the vulcanized tire formed by the vulcanizer is transported on a guide roller in a horizontal state provided on the upper surface of the tire support frame. Then, the tire support frame having the unvulcanized tire clamped by a clamp means is rotated by a turning drive means. And turning the vulcanized tire placed on the guide roller of the tire support frame into a vertical state while holding the vulcanized tire placed on the guide roller of the tire support frame with the tire holding means. While releasing the holding state of the vulcanized tire while rolling it out, while releasing the clamp of the unvulcanized tire which has been clamped by the clamp means and is in the vertical orientation, and transporting the unvulcanized tire by the transport means. A method for loading and unloading tires, which is lifted and transported to the vulcanization side. 2. A tire support frame which can be turned by a turning drive means around a support shaft as a fulcrum is mounted on support frames erected on opposite sides on a base plate, and a vulcanized surface is provided on an upper surface of the tire support frame. A rotatable guide roller for mounting the tire is disposed, and a revolvable and revolvable tire that holds the peripheral surface and side surface of the vulcanized tire that revolves with the tire support frame is provided at the revolving end of the tire support frame. And a support plate that can be moved up and down via an elevating drive means is provided inside the tire support frame, and a guide member protrudes at a substantially central portion of the support plate in a direction orthogonal to the support plate. The guide member is provided with a clad of an unvulcanized tire that holds a bead portion and an inner surface portion of the unvulcanized tire that has been carried into the position of the support plate. A tire loading / unloading device, characterized in that it has a pump means. 3. The unvulcanized tire clamping means includes: a bead support block mounted on a side surface of a support plate; a turning arm having an inner surface holding roller mounted on a tip thereof;
3. The tire loading / unloading device according to claim 2, wherein said turning arm comprises a turning means for turning the turning arm to the inner surface of the unvulcanized tire.