JPH0361031A - Method and apparatus for supplying tire constitutional material - Google Patents

Abstract

PURPOSE:To accurately bond the terminal parts of a tire constitutional material by clamping the rear end of the tire constitutional material along with a feed apparatus by a clamp device to wind said tire constitutional material around a winding drum and releasing the rear end of the tire constitutional material from the clamp device immediately before the completion of winding. CONSTITUTION:A clamp device 6 is positioned on the rear end side of a feed apparatus 1 to clamp the rear end of a tire constitutional material W and the feed apparatus 1 and moved toward a winding drum 4 by the movement of the feed apparatus 1. When the leading end of the tire constitutional material W is moved to the place under the winding drum 4, this state is detected by a detection means to raise the feed apparatus 1 by a lift apparatus and the leading end of the tire constitutional material W is bonded to the under surface of the winding drum 4 and the tire constitutional material W is successively wound around the rotary winding drum 4. When the rear end of the tire constitutional material W is released from the clamp device 6 immediately before the completion of winding, the tire constitutional material W is supplied in the state corresponding to the peripheral length of the winding drum 4 and it is eliminated that the bonded part X of the terminal parts of the tire constitutional material W is opened.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for supplying tire constituent materials and an apparatus therefor, and more particularly, the present invention relates to a method for supplying tire constituent materials and an apparatus therefor, and more specifically, the present invention relates to a method for supplying tire constituent materials and an apparatus therefor. The present invention relates to a method for supplying tire constituent materials and an apparatus therefor, which corrects the joints of the end portions so that they do not open when attached.

(Prior art) Conventionally, in a tire molding machine, tire constituent materials such as tread members are wound around a drum with high accuracy, and when the tire constituent materials are wound, the seams of the end portions of the tire constituent materials 1 coincide with each other. In the winding process, the tire constituent material is cut in advance to a length that corresponds to the circumference of the drum.

However, even if the tire constituent material extruded from the extruder is cut into a predetermined length, due to the nature of the rubber material, the wrapping will shrink slightly when it is wrapped around the drum, so the tire structure in this state When the material is wound around a drum, an opening occurs at the seam of the end portion.

For this reason, in the past, when wrapping around a drum, the winding was based on the assumption that the length of the tire component material would be shorter than the set length. The tire constituent materials are supplied to the rolling i:l tram by setting the ratio to the speed of the

[Problem that the invention seeks to solve]

However, in reality, when the tire constituent material placed on the first general conveyance device is wound by the winding Gj drum, it slips on the conveyance device due to the winding force, causing the tire to slip on the conveyance device. Tamamaki (J Ke) The circumferential speed ratio of the tram and the correction rate of the conveyance speed in the actual conveyance device are different, and it is difficult to make an appropriate correction. There was a problem that I couldn't do it.

[Purpose of the invention]

The present invention has been devised by paying attention to such a conventional problem, and when winding a belt-shaped tire constituent material around a drum, the tire constituent material does not slip on a conveying device, and the tire constituent material is not rolled. The object of the present invention is to provide a method and apparatus for supplying tire constituent materials that can perform correction in accordance with the circumferential speed ratio of the drum and laminate the end portions of the tire constituent materials with good accuracy. be.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a detection means for aligning the rear ends of the tire constituent materials, and a measuring means for measuring the length of the tire constituent materials, in the vicinity of the conveyance device.
A control device is installed to calculate and control the feed speed of the conveying device with respect to the drum circumferential speed, and the conveying device is provided with a clamp device that is movable together with the conveying device, and this clamp device is used for winding the tire constituent material. Sometimes, the rear end of the tire constituent material is clamped together with the conveying device, and the rear end of the tire constituent material is released from the conveying device immediately before the wrapping is completed.

[Action of the invention]

The present invention is configured as described above, and when the tire constituent material is conveyed by the conveying device, the rear end of the tire constituent material is clamped together with the conveying device by the clamp device, and in this clamped state, the tire constituent material is rolled up. The material is supplied to the drum for winding, and just before the wrapping of the tire component material is completed, the rear end of the tire component material is released from the clamp device, and the winding is corrected according to the circumferential speed ratio of the drum. By doing so, the end portions of the tire constituent materials can be laminated with high precision.

[Embodiments of the invention]

Hereinafter, the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is a cross-sectional view of a conveyance device 1 constituting a supply device for tire constituent materials W such as tread members according to the present invention;
FIG. 2(a) shows a schematic configuration diagram of the entire supplying device. It is a wrapped chain conveyor, and a plate 3a that supports the tire constituent material W is installed on the chain 3.

The conveyance device 1 is configured such that the windings installed above the conveyance device 1 are raised and lowered toward the bottom surface 1'J of the drum 4 by a lifting device (not shown).

On both sides of the support frame 5 of the transport device 1, the rear end side of the tire component FIW and the chain 3 are simultaneously clamped, and below the winding drum 4, a clamp device 6 is placed in an unclamped state. is installed.

The clamping device 6 includes clampers 7a and 7b that are opened and closed by a drive means such as an air cylinder (not shown), and the clamping device 6 is attached to a guide bar 8 disposed along the longitudinal direction on the side of the support frame 5. It can move forward and backward along the line and is supported slidably.

Further, on the conveying device l, as shown in FIGS. 1 and 2(a), there is a detecting means 9 for aligning the rear ends of the paulownia wood W making up the tire, and a detecting means 9 for aligning the rear ends of the paulownia wood W making up the tire, and a detection means 9 for measuring the length C of the tire making material W. A measuring means 10 for measuring is installed, and as the detecting means 9, for example, a detector such as a known phototube is used, and as the measuring means 10, along the longitudinal direction of the tire constituent material W. An optical detection means is used that measures the number of pulses while sliding.

Next, the method of supplying the tire constituent material W will be explained in Figs.
This will be explained with reference to FIG. 2(d).

First, as shown in FIG. 2(a), the clamping device 6 is positioned at the rear end side of the conveying device 1, and in this state, the tire constituent material W, which has been cut into a predetermined length, is placed on a chain. Place it on the conveyor.

From this state, in order to align the rear ends of the tire constituent materials W placed at arbitrary positions, the detecting means 9 detects the position, and the length of the tire constituent materials on the conveying device 1 is determined as described above. It is detected by the measuring means 10.

When the above-mentioned detection and measurement are completed, the conveying device 1 is driven in reverse to move the tire constituent material W back to the position of the clamping device 6, and as shown in FIG. The rear end of the tire constituent material W is clamped.

Next, the tire constituent material W is conveyed to the wrapping drum 88 to the ram 4 side at a set speed ratio between the winding drum 4 and the conveying device 1 according to the measured length of the tire constituent member, and at this time, The clamping device 6 that clamps the rear end of the tire constituent material W and the conveying device 1 moves toward the drum 4 at the same time as the conveying device 1 moves.

When the leading end of the tire constituent material W has moved below the wrapping drum 4, this is detected by the detection means (not shown), and the conveying device 1 is raised by an elevating device (not shown) to form the tire. The leading end of the material W is attached to the lower surface of the drum 4, and the rotating drum 4 sequentially wraps the material W as shown in FIG. 2(C).

In this way, the tire constituent material W is wound one after another,
When the rear end of the tire constituent material W is released from the clamp device 6 just before the winding is completed, the tire constituent material W is supplied in a state corresponding to the circumference of the winding drum 4, and the tire constituent material W is supplied in a state corresponding to the circumference of the winding drum 4, and the tire constituent material W is supplied in a state corresponding to the circumference of the winding drum 4, and the tire constituent material W is supplied in a state corresponding to the circumference of the winding drum 4, and the tire constituent material W is supplied in a state corresponding to the circumference of the winding drum 4. As shown in FIG. 2(d), X can be laminated with high precision without opening.

Through the above-described operations, the winding is automatically corrected in accordance with the circumferential speed ratio of the drum 4, and the end portions of the tire constituent materials can be laminated with high precision.

[Effects of the Invention] Since the present invention is configured as described above, when the band-shaped tire constituent material is wound around the drum, the tire constituent material does not slip on the conveying device, and the winding is carried out on the drum. This has the effect of automatically making corrections according to the circumferential speed ratio of the tires, thereby allowing the end parts of the tire constituent materials to be laminated with high accuracy.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a conveyance device constituting a supply device for tire constituent materials such as tread members in which the present invention is implemented;
Figures (a) to 2(d) are explanatory diagrams showing a method of supplying tire constituent materials. DESCRIPTION OF SYMBOLS 1... Conveying device, 3... Chain, 4... Wrapping on drum, 6... Clamping device, 7a, 7b... Clamper, 8... Guide bar, 9
...detection means, 10...measuring means, W...tire constituent material.

Claims (1)

[Claims] 1. Measure the length of the tire constituent material cut into a predetermined length on a conveyance device, then convey it to a predetermined position, and adjust the conveyance according to the circumferential speed of the drum based on the measured results. In a method for supplying tire constituent materials, the feeding speed of the device is calculated, and the tire constituent materials are supplied so as to be wound around a winding drum so that the leading and trailing ends of the tire constituent materials coincide with each other. When conveying the tire constituent material, the rear end of the tire constituent material is clamped together with the conveying device by a clamping device, and in this clamped state, the tire constituent material is supplied to the winding drum and wound, and the winding of the tire constituent material is completed. 1. A method for supplying tire constituent materials, comprising: releasing the rear end of the tire constituent material from a clamping device immediately before the tire starting time. 2. A tire constituent material supply device comprising a rotating winding drum, and a conveying device installed movably up and down below the winding drum and supplying a predetermined length of tire constituent material to the winding drum, Near the transport device,
A detection means for aligning the rear ends of the tire constituent materials, a measuring means for measuring the length of the tire constituent materials, and a control device for calculating and controlling the feed speed of the conveying device relative to the drum circumferential speed are installed. The conveyance device is provided with a clamp device movable together with the conveyance device, and this clamp device clamps the rear end of the tire component material together with the conveyance device when wrapping the tire component material, and immediately before the completion of wrapping. A supply device for tire constituent materials, characterized in that the rear end of the tire constituent material is released from the conveying device.