KR101320722B1 - Apparatus for assemblying a bead and an apex - Google Patents

Abstract

A bead-apex assembly device is connected to a rotating shaft, an upper end of the rotating shaft, secures a bead wire to an outer wall, and defines a diameter with a plurality of divided bead locking segments about the rotating shaft and the bead. And a drive unit mechanically connected to the locking segments and changing the diameter of the fixing frame by moving the bead locking segments radially about the rotating shaft.

Description

Bead-apex assembly unit {APPARATUS FOR ASSEMBLYING A BEAD AND AN APEX}

The present invention relates to a device for assembling beads and Apex for tire semi-finished products. More specifically, the present invention provides a bead-apex assembly for assembling bead wires and apexes in a horizontal direction to assemble bead wires and apexes when manufacturing tires. Relates to a device.

Generally, the manufacturing process of tire is a process of cutting semi-finished products topping from rolling process and rolling process to the standard or assembling semi-finished products to make new semi-finished products. Includes a molding process to attach, and a vulcanization process to make the actual tire at high temperature and high pressure.

Here, in the cutting process, it is attached to the rim to support the additional load and determine the bead wire (side) and the side stiffness to transfer the drive, braking, torque, etc. to the road surface to play a decisive role in the ride comfort and steering stability An apparatus for assembling Apex and providing it for subsequent molding processes is referred to as a bead-apex assembly apparatus.

In the conventional bead-apex assembly device, the bead wire is laid horizontally so that an operator inserts it into a fixing frame having the same diameter as the inner diameter of the bead wire, and then the apex part in the outer diameter of the bead wire. ) Was manually attached to assemble the bead wire and apex. Since this method is performed by the operator's manual work, the productivity is relatively low, and the uniformity of the tire quality is deteriorated because a certain assembly process is not performed.

An object of the present invention for solving the above problems is to reduce the inner diameter of the fixing frame holding the bead wire when mounting the bead wire and to expand the inner diameter of the fixing frame during assembly of the bead wire It is to provide a bead-apex assembly device that can be prevented from slipping.

A bead-apex assembly device according to an embodiment of the present invention for achieving the above object is connected to the upper end of the rotating shaft, the rotating shaft and secures the bead wire on the outer wall, divided into a plurality of beads around the rotating shaft And a drive unit mechanically connected to the bead locking segments and the bead locking segments defining a diameter with the locking segments, wherein the bead locking segments are moved radially about the rotating shaft to change the diameter of the bezel.

In one embodiment of the present invention, the rotary shaft is formed with an air inlet, the drive unit, by connecting a servo motor for generating a rotational force, a timing pulley fastened to the rotary shaft, the servo motor and the timing pulley A timing belt for transmitting rotational force to the rotary shaft, a rotary cylinder driven by compressed air by the rotation of the rotary shaft, and connected to the rotary cylinder and the bead locking segments, respectively, to rotate the rotary cylinder in a linear motion. It may include a rack / pinion gear for switching.

As described above, according to the horizontal bead-apex assembly rotary table device of the present invention, since the rotating table itself expands and contracts, bead wires can be easily detached and bead-apex assembly can be performed automatically. As a result, high quality bead-apex can be produced with improved productivity and accurate rotation.

1 is a perspective view of a bead-apex assembly device according to one embodiment of the invention.
2 is a cross-sectional view of the bead-apex assembly device of FIG. 1.
3 is a plan view of the bead-apex assembly device of FIG.

Hereinafter, a bead-apex assembly device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 is a perspective view of a bead-apex assembly device according to one embodiment of the invention. 2 is a cross-sectional view of the bead-apex assembly device of FIG. 1. 3 is a plan view of the bead-apex assembly device of FIG.

1 to 3, a bead-apex assembly device according to embodiments of the present invention includes a rotating shaft 01, a fixing frame 08, and a drive unit.

The rotating shaft 01 extends in the vertical direction. The rotary shaft 01 rotates to enable the assembly of the apex to the bead wire. For example, an air inlet 02 may be formed at a lower portion of the rotary shaft 01. Compressed air may be formed by compressing air injected into the rotating shaft 01 through the air inlet 02.

The rotation shaft 01 may function as a rotation center of the fixing frame 08.

The fixing frame 08 is fastened to the upper portion of the rotating shaft (01). The fixing frame 08 may fix the bead wire. The fixing frame 08 may include at least three bead locking segments. The number of bead locking segments can be adjusted.

The bead locking segments may be spaced apart from each other about the rotating shaft 01. Also a circle consisting of the outer wall of the bead locking segments about the rotating shaft 01 defines the diameter of the fixing frame 08. For example, the diameter of the fixing frame 08 increases when the bead locking segments move away from each other about the rotating shaft 01. Alternatively, when the bead locking segments approach each other about the rotation shaft 01, the diameter of the fixing frame 08 may be reduced.

As shown, the bead locking segments may be three. That is, the fixing frame may be divided into three 120 degrees each. The bead locking segments may be provided with coupling grooves (see FIG. 1) radially formed around the rotating shaft 08 therein.

The drive unit is mechanically connected to the bead locking segments. The drive unit is provided to move the bead locking segments radially about the rotating shaft 01. As a result, the driving unit may change the diameter of the fixing frame 08.

 In one embodiment of the present invention, the drive unit may include a servo motor, a timing pulley 03, a tie belt, a rotating cylinder 05, and a rack gear 07 / pinier gear 06.

The servo motor provides a rotational force for moving the bead locking segments. The servo motor may be provided to enable precise control.

The timing pulley 03 is fastened to the rotary shaft 01. For example, the timing pulley 03 may be formed to surround the outer periphery of the rotation shaft 01 at the center of the rotation shaft 01. The timing pulley 03 may rotate the rotation shaft 01.

The timing belt connects the servo motor and the timing pulley 03. The timing belt transfers the rotational force from the servo motor to the timing pulley 03.

The rotary cylinder 05 is disposed in the lower portion of the fixing frame 08 of the upper portion of the rotary shaft 01. The rotary cylinder 05 generates a rotational force by using the compressed air generated as the rotary shaft 01 rotates.

The rack / pinion gears 07 and 06 are respectively connected to the rotating cylinder and the bead locking segments. The rack / pinion gears 07 and 06 convert the rotational force of the rotary cylinder 05 into linear motion to move the bead locking segments radially about the rotary shaft 01. Accordingly, as the bead locking segments move forward or backward with each other, the fixing frame 08 made of the bead locking segments may change in diameter.

Hereinafter, driving of the bead-apex assembly device will be described.

First, the driving force of the servo motor is transmitted to the timing pulley 03 using a timing belt. The rotating shaft 01 to which the timing pulley 03 is fastened rotates. As a result, compressed air is generated inside the rotating shaft 01, and the rotating cylinder 05 rotates using the compressed air. As the rack / pinion gears 07 and 06 connected to the rotating cylinder change the rotational motion to linear motion, the bead locking segments to which the rack / pinion gears 07 and 06 are connected move.

In this way, the bead locking segments can be moved to change the diameter of the fixing frame consisting of the bead locking segments, thereby easily mounting the bead wires and fixing the bead wires.

01: rotating shaft 02: shaft housing
03: Timing Pulley 04: Bearing Housing
05: rotating cylinder 06: pinion gear
07: rack gear 08: fixed frame
09: ball bearing 10: sliding plate

Claims (2)

delete Rotating shaft;
A fixing frame connected to an upper end of the rotating shaft and fixing a bead wire to an outer wall and defining a diameter with a plurality of divided bead locking segments about the rotating shaft; And
A drive unit mechanically connected to the bead locking segments, the drive unit changing the diameter of the fixing frame by moving the bead locking segments radially about the rotating shaft,
The rotating shaft is formed with an air inlet, the drive unit,
A servo motor for generating a rotational force;
A timing pulley fastened to the rotating shaft;
A timing belt connecting the servo motor and the timing pulley to transmit rotational force to the rotating shaft;
A rotary cylinder driven by compressed air by the rotation of the rotary shaft; And
And a rack / pinion gear connected to the rotating cylinder and the bead locking segments, respectively, to convert the rotational movement of the rotating cylinder into a linear movement.

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