KR200458902Y1 - Bladder-type gripping device for greentire - Google Patents

Abstract

The present invention relates to a green tire take-out grip device which pulls out a green tire having a shape of a tire (semi-completed tire before vulcanization) from a molding apparatus by combining semi-finished products in a molding process during a tire manufacturing process. And a pump, which is installed in the body portion and the body portion, is provided with a plurality of air holes arranged along the circumference of the rim-shaped body, and adds a positive pressure or a negative pressure to the air entering and exiting through the air holes. A built-in main shaft block and bladder holders arranged side by side in two rows spaced apart with the air holes along the circumference of the rim-shaped body of the main shaft block; Bladder having an annular tube shape with an inner circumference open to enclose the circumference of the shaft block and the ends of the inner circumference correspondingly attached to both bladder holders. Made and, fitted to the inner center of the main shaft block green tire, by reaching the inner circumference of the green tire and the bladder expansion the green tire is configured such that the grip (grip) to the main shaft block.

Description

Bladder-type Green Tire Grip Device {BLADDER-TYPE GRIPPING DEVICE FOR GREENTIRE}

The present invention relates to a green tire take-out grip device that pulls out a green tire (semi-finished semi-finished tire) having a shape of a tire from a molding apparatus by combining semi-finished products in a molding process during a tire manufacturing process. After this, the grip device is improved when the green case is transferred to a transport conveyor or a green tire storage container to transfer the molded green tire to the vulcanization process line.

Conventional grip devices, when drawing out a green tire formed through a molding process, are mounted on an end of the take-out device, and are drawn using an enlarged diameter / axis diameter unit formed in a circumference with an aluminum pad. The green case is gripped and transferred by an aluminum pad whose diameter is smaller than that of the tire and inserted into the green tire.

However, such a grip / release operation using the diameter / axis diameter unit is a bead part having a contact area with a narrow contact area of the green tire because the contact for grip is concentrated before the bead core is formed with sufficient strength. Since the bead portion is deformed, the shape of the green tire itself is twisted, or the uniformity or stability of the finished tire is poor.

In order to solve such a problem, the present invention, unlike the conventional pull-out grip device using an aluminum pad, by increasing the contact area for the grip to cover the entire surface of the carcass inside the green tire, the load of the green tire is locally It is an object of the present invention to provide a withdrawal grip device that can concentrate and cause unintended deformation and can improve the uniformity of finished tires.

In order to achieve the above object, the present invention, the body portion is mounted to the moving body, and is provided in the body portion, a plurality of air holes are formed along the periphery of the rim (rim) -shaped body, Main shaft block with a built-in pump for adding positive or negative pressure to the air entering and exiting through the air hole, and the space between the air hole along the circumference of the rim-shaped body of the main shaft block A bladder holder arranged side by side in two rows, and an annular tube shape with an inner circumference open to enclose the circumference of the shaft block, and the ends of the inner circumference correspondingly attached to both bladder holders, respectively. The main shaft block is fitted to the center of the inner ring of the green tire, and the bladder expands to reach the inner circumference of the green tire. And to grip on the shaft block.

In addition, between the fuselage and the main shaft block, one side of the fuselage is fixed to the body portion, the hinge portion is connected to the main shaft block is mounted on the other side that is folded and extended by the drive means.

In addition, a flange portion having a disc shape and positioned between the hinge portion and the main shaft block so that one sidewall of the green tire is supported to prevent alignment and positional deviation of the green tire fitted to the main shaft block. It is configured to include more.

According to the bladder-type green tire take-out grip device of the present invention, the contact area when the green tire is gripped is widened, so that the load of the green tire is dispersed and there is no fear of failure due to deformation.

In addition, the deformation force applied to the green tire itself is distributed in spite of the load change due to the change of posture during the transfer, and it is possible to prevent the defect caused by the deformation and at any angle based on the hinge device of the grip device. Since the load of the green tire is not biased even if it is, the position of the transfer conveyor or the storage stand for the green tire can be freely determined, and the setting can be easily changed.

And, if the present invention is applied to the manufacturing process, the uniformity of the finished tire can also be greatly improved.

1 is a schematic longitudinal cross-sectional view showing a bladder-type green tire take-out grip device according to a preferred embodiment of the present invention.
Figure 2 (a) and (b) is a schematic longitudinal cross-sectional view showing an example in which the hinge device is operated while the tire is fitted to the bladder-type green tire take-out grip device according to a preferred embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic longitudinal cross-sectional view showing a bladder-type green tire take-out grip device according to a preferred embodiment of the present invention, Figure 2 (a) and (b) is a bladder-type green tire take-out grip according to a preferred embodiment of the present invention It is a schematic longitudinal cross-sectional view which shows an example in which the hinge device is operated with a tire fitted to the device.

The bladder-type green tire grip device 10 of the present embodiment is mounted on a fuselage part 8 on which a power supply means and a control unit (not shown) are mounted, and the fuselage part 8 is provided on a moving object (not shown). Grip or release the green tire as you move to position.

The body portion 8 is provided with a hinge portion 6 on which one side thereof is fixed and whose other side is folded and unfolded by a driving means such as a cylinder, as shown in FIGS. 2 (a) and (b). As shown, the hinge portion 6 serves as an articulation of the industrial robot arm when turning 90 degrees, for example, withdrawing the green tires from the molding machine and then releasing the green tires on the transfer conveyor.

A flange 5 is integrally coupled to the other side of the hinge 6, and the flange prevents alignment and dislocation of the green tire 1 fitted to the main shaft block 4. It is positioned between the hinge portion and the main shaft block so that one side wall of the green tire 1 is supported and has a disc shape.

The main shaft block 4 is connected to the fuselage 8 via the flange portion 5, and the main shaft block 4 has a rim-shaped body and a circumference of the body. A plurality of air holes (not shown) are arranged along the line. In addition, a pump (not shown) for adding a positive pressure or a negative pressure to air entering and exiting through the air hole is built in the main shaft block 4.

On the other hand, along the circumference of the main shaft block (4) body, a bladder holder (3) is formed side by side arranged in two rows spaced apart at regular intervals with the air hole therebetween, in the present embodiment A concave groove is formed along the periphery with the outwardly concave cross section forming, and the bladder 2 is detachably attached to the concave groove by using a ring member.

The bladder 2 has an annular tube shape with an inner circumference open, and the ends of the inner circumference are respectively correspondingly attached to both bladder holders 3 so as to surround the circumference of the shaft block 4 body. do.

By forming a wide groove having a concave longitudinal section and a wide groove along the outer circumference of the main shaft block, the bladder 2 is completely inserted into the wide groove by negative pressure when the bladder 2 contracts. It is preferable to allow the operation to be smoothly performed without being caught when the green tire is mounted or detached from the main shaft block 4.

In the green tire take-out grip device 10 of the present embodiment, a bladder 2 capable of adjusting expansion and contraction expands radially from the center of the green tire 1 to form an inner surface of the green tire 1. As shown in FIG. 1, the gripping action is performed without contacting the bead portion of the green tire 1 which is open outwardly in both sides of the tire width direction as opposed to the finished tire, as shown in FIG. 1.

Therefore, when the gripper of the green tire 1 is gripped, external forces such as a tensile load or a torsional load hardly act on the bead portion, and there is a fear that defects may occur due to the grip during transportation, such as distortion of the appearance or a decrease in uniformity. Extremely reduced.

In addition, the bladder-type green tire grip device 10 according to the present embodiment has a conventional method in gripping or gripping the green tire 1 in the process of taking out the green tire 1 from the molding machine and transferring it to a transfer conveyor or other process. Unlike the grip device, the bladder that can be expanded / contracted in a round shape resembling the green tire reaches the carcass that forms the rim of the green tire and grips the green tire with air pressure and friction force at this time. This is to prevent damage to the bead portion inserted into the product or to cause deformation of the finished tire.

The grip device introduced through the present invention is not limited to the case where the green tire 1 is drawn out from the green tire molding machine, and the shape of the bladder when gripping or gripping a tire having an outer shape through the molding process in the tire manufacturing process. It can be utilized in various manufacturing processes by appropriately modifying the back, and this or belong to the scope of the present invention.

1: green tire
2: bladder
3: bladder holder
4: main shaft block
5: flange
6: hinge part
7: Shock absorber

Claims (3)

A body part mounted to the moving body,
The main body is installed in the body portion, a plurality of air holes are formed along the periphery of the rim-shaped body, the pump is built to add a positive pressure or a negative pressure to the air entering through the air holes The main shaft block,
Bladder holders arranged side by side in two rows spaced apart with the air holes along the circumference of the rim-shaped body of the main shaft block;
It consists of a bladder having an annular tube shape with an inner circumference open so as to surround the shaft block, and ends of the inner circumference corresponding to both bladder holders, respectively,
Bladder-type green tire grip device, characterized in that the main shaft block is fitted to the center of the inner ring of the green tire, the bladder is expanded to reach the inner circumference of the green tire to grip the green tire on the main shaft block. . The method of claim 1,
Between the fuselage and the main shaft block,
Bladder-type green tire grip device, characterized in that the one side is fixed to the body portion, and further comprising a hinge portion connected to the main shaft block on the other side of the folding and extending by the drive means. The method of claim 2,
A flange portion having a disc shape and positioned between the hinge portion and the main shaft block to support one sidewall of the green tire to prevent alignment and dislocation of the green tire fitted to the main shaft block is further included. Bladder-type green tire grip device, characterized in that.

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