KR20030075255A - Device for Pressing Innerliner Automatically in Tire Shaper - Google Patents

Abstract

PURPOSE: A device for automatically pressing an inner liner of a tire molding machine is provided to automatically press and separate a starting part, when the inner liner is wound in a molding drum, thereby reducing labor as improving productivity and obtaining quality uniformity. CONSTITUTION: A roll axis(3) is installed parallel to a rotation axis(7) of a molding drum(2). Rolls(1) freely rotate with a bearing in the roll axis(3). A driving cylinder(5) enables the roll(1) to have access to the molding drum(2) or separates the rolls(1) therefrom. More than two rolls(1) are divided in a direction of the roll axis(3). The rolls(1) are made from poly urethane. A sensor(40) and a control device(30) are additionally included in the cylinder(5).

Description

Device for Pressing Innerliner Automatically in Tire Shaper}

The present invention relates to an inner liner automatic pressing device of a tire molding machine.

The molding process of automobile tires refers to a process of forming the green tires before assembling by integrating the inner liner, carcass, beads, sidewalls, belts, and treads produced in the extruded and cut processes, which are the former processes. In this forming step, the inner liner is first supplied to the forming drum and wound up, and then the carcass, sidewall, and the like are sequentially wound and molded.

In the related art, when the inner liner is wound on a molding drum, the inner portion of the inner liner is first pressed by a worker using a finger to prevent the inner liner from being separated from the molding drum.

However, when the inner liner is pressed through the manual work, there is a disadvantage in that the labor intensity increases and productivity decreases, and the quality nonuniformity also increases.

The present invention has been made to solve the above problems, the inner liner automatic crimping device of the tire molding machine that can improve the productivity and uniformity of quality by automatically pressing the starting portion of the inner liner in the molding process in the molding process To provide.

1 is a block diagram of an inner liner automatic pressing device of a tire molding machine according to the present invention.

FIG. 2 is a cross sectional view of the roll portion in FIG. 1. FIG.

※ Explanation of Major Drawings

1 ... Roll

2. Molding drum

3 ... roll axis

4 ... bearing

5 ... driven cylinder

20 ... Innerliner

30 ... controls

40 ... sensor

In order to achieve the above object, the inner liner automatic pressing device of the tire molding machine according to the present invention,

A roll shaft installed in parallel with the rotating shaft of the forming drum;

A roll freely installed on the roll shaft via a bearing;

It characterized in that it comprises a drive cylinder for approaching or spacing the roll to the forming drum.

It is preferable that the said roll is divided into several pieces in the said roll axial direction.

And, the material of the roll is preferably composed of a good elasticity material such as polyurethane.

It is preferable that the cylinder is additionally provided with a sensor and a control device so that the inner liner can be automatically compressed and spaced apart from the forming drum.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

Figure 1 shows the configuration of the inner liner automatic pressing device of the tire molding machine according to the present invention.

As shown, the roll shaft 3 is provided in parallel with the rotating shaft 7 of the forming drum 2 on which the inner liner 20 is wound. As shown in FIG. 2, the roll 1 is rotatably provided with the roll 4 via the bearing 4. It is preferable that two or more rolls 1 are provided in the roll axis 3 direction. Further, it is more preferable that the division intervals of the rolls 1 are made constant so that a uniform force is applied to each roll 1.

Also, at this time, the overall width of each roll 1 may be appropriately changed according to the molding machine and the tire size. This is possible by removing or inserting each of the rolls 1 from both ends of the shaft 3.

In addition, when the material of the roll 1 is made of a material having good elasticity such as polyurethane, the inner liner 20 may be pressed onto the forming drum 2 more smoothly and uniformly.

In addition, the roll 1 is provided with a driving cylinder 5, and when the inner liner 20 is pressed through the roll 1, the forming drum 2 is approached, and when the pressing is completed, the space is separated. (離 隔) It is made possible. It is sufficient that the driving cylinder 5 is constituted by, for example, an air cylinder or a hydraulic cylinder, and the moment when the inner liner 20 enters the forming drum 2 by adding the sensor 40 and the control device 30. It is preferable to press the roll 1 to the drum 2, and to automatically space apart when the pressing is finished. The sensor 40 is a conventional one such as a contact sensor, an optical sensor, or the like, and the control device 30 may also be a general one for converting an input electrical signal into a mechanical signal.

Hereinafter, the operation of the inner liner automatic pressing device of the tire molding machine according to the present invention will be described.

First, when the inner liner 20 is supplied to the forming drum 2, the supplied state is detected by the contact sensor 40, and the detected signal is transmitted to the control device 30, and the control device 30 is The driving cylinder 5 is operated to push the inner liner 20 toward the forming drum 2 so as to press the starting portion onto the forming drum 2. When the pressing is completed, the drive cylinder 5 is again spaced apart from the forming drum 2 by the control device 30. In this state, the forming drum 2 winds up the inner liner 20 stably, and a subsequent process is performed.

According to the present invention having the above-described configuration, when the inner liner is wound on the forming drum, by automatically crimping and spacing the starting area, the advantage that labor intensity is reduced, productivity is improved, and uniformity of quality can be obtained. have.

Claims (4)

In the inner liner automatic crimping device of a tire molding machine, A roll shaft 3 provided in parallel with the rotation shaft 7 of the forming drum 2; A roll (1) rotatably installed on the roll shaft (3) via a bearing (4); Inner liner automatic pressing apparatus of the tire forming machine, characterized in that it comprises a drive cylinder (5) for approaching or spaced apart the forming drum (2). The method of claim 1, 2. The inner liner automatic crimping device of a tire molding machine characterized in that two or more rolls are provided in the roll axis (3) direction. The method according to claim 1 or 2, Inner liner automatic pressing device of the tire molding machine, characterized in that the material of the roll (1) is polyurethane. The method according to claim 1 or 2, The cylinder (5), the inner liner automatic crimping apparatus of the tire molding machine, characterized in that additionally comprises a sensor (40) and the control device (30).