JPH02175554A - Winding-down method and device for banded material - Google Patents

Abstract

PURPOSE:To carry out winding-up and winding-down work with high efficiency automatically by detecting the slack quantity of rubber sheet wound down and driving a separation roll and a liner winding shaft intermittently to divide a separation liner and the rubber sheet completely. CONSTITUTION:A separation liner Wa and a rubber sheet Wb are wound down from a roll body 11 to divide each of them by a separation roll 13 which can drive rotation. The divided separation liner Wa is wound around a linear winding-up shaft 14, and the rubber sheet Wb is wound down for the next process through a festoon 18. Then the slack quantity of the rubber sheet wound down is detected, and driving of a driving motor 12 for separation roll 13 and a winding-up driving motor for linear winding-up shaft 14 are controlled intermittently. By repeating the above operation, it becomes possible to wind down the thin rubber sheet Wb, which was impossible so far, as well as automatic affixing work by a combination of a standard length cutting device and an affixing device 18.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method for unwinding a strip material and an apparatus therefor, and more specifically, the present invention relates to a method for unwinding a strip material and an apparatus therefor, and more specifically, the present invention relates to a method for unwinding a strip material and an apparatus therefor, and more specifically, a thin rubber sheet wound around a release liner such as polyethylene, The present invention relates to a method for unwinding a band-shaped material and an apparatus therefor, in which a liner and a rubber sheet are sorted and automatically unwound.

[Conventional technology]

Conventionally, in tire molding operations, a narrow and thin rubber sheet is attached to the inner liner or the splice portion of the steel carcass, but this is one of the factors that hinders the automation of tire molding operations.

By the way, as a conventional method for unwinding a thin rubber sheet wrapped around a release liner, for example, as shown in FIG. Then, the plurality of guide roll devices 4 and the distributed portion were unwound to the release liner winding shaft 6 and the rubber sheet winding device 7 side via the rolls 5.

[Problems to be Solved by the Invention] However, in the case of the above method, it is difficult to reliably distribute and wind up the narrow release liner 2 and the rubber sheet 3, as shown in FIG. There are problems such as a part of the rubber sheet 3 being rolled up in close contact with the liner, and in the case of the above method, it is impossible to separate the release liner 2 and the rubber sheet 3. Using a simple unwinding stand, the release liner 2 and rubber sheet 3 are unrolled in one piece, cut to a specified length with scissors, etc., and then the release liner 2 and rubber sheet 3 are peeled off by hand. Ta.

For this reason, there have been problems in that the work efficiency is extremely poor, the tire forming work cannot be automated, and it is not possible to improve productivity.

[Purpose of the invention]

This invention was devised by paying attention to such conventional problems, and it is possible to unwind an integrated narrow release liner and a rubber sheet that are wrapped around a roll body, and also to unwind a release liner and a rubber sheet. The thin and narrow release liner and the rubber sheet are reliably separated and unrolled, and combined with a fixed-length cutting device and pasting device, the sheet is automatically rolled up, and the thin and narrow release liner and the rubber sheet are reliably separated and pasted. The object of the present invention is to provide a method for unwinding a strip-shaped material and an apparatus therefor, which enable automatic supply and automatic pasting of material.

[Means to solve the problem]

In order to achieve the above-mentioned object, this invention provides a rotationally-driven peeler that distributes the release liner and rubber sheet unwound from the roll body to each other in the vicinity of the roll body around which the rubber sheet is wound through the release liner. A roll is provided, and a winding shaft that can be rotated to wind up the release liner distributed by the release roll and a rubber sheet festoon are provided near the release roll, and a rubber sheet festoon is provided with a sagging amount of the rubber sheet to be unwound. The gist of the present invention is to provide a detection means for detecting and outputting an output signal for intermittently driving the peeling roll and the liner winding shaft.

[Action of the invention]

This invention is configured as described above, unwinds a release liner and a rubber sheet from a roll main body, distributes each of them with a rotationally driveable release roll, and winds the distributed release liner around a liner winding shaft. At the same time, the rubber sheet is unwound to the next process via a festoon, and by detecting the amount of unwinding of the rubber sheet and intermittently driving the peeling roll and liner winding shaft, thin and narrow peeling is performed. It is characterized by separating the liner and the rubber sheet to ensure reliable unwinding.

[Embodiments of the invention]

The present invention will be described in detail below based on the accompanying drawings.

FIG. 1 shows an overall perspective view of a device for unwinding a strip material W according to the present invention. Near the bottom of the roll body 11, the roll body 11
A peeling roll 13 that can be rotationally driven is provided for distributing the peeling liner Wa and the rubber sheet wb unwound from each other via a drive motor 12.

Further, a winding shaft 14 is installed near the side of the peeling roll 13 and is rotatably driven to wind up the release liner W a distributed by the peeling roll 13 . It is configured to be rotationally driven via a motor 15.

Further, a festoon 16 of the rubber sheet Wb is installed at the lower part of the peeling roll 13, and this festoon 16 detects the amount of unwinding of the rubber sheet wb and drives the drive motor 12 of the peeling roll 13 and the liner winding. axis 14
A detection means (not shown) is provided for outputting an output signal for intermittently driving and controlling the winding drive motor 15.

Further, a pasting device 18 is installed on the side of the unwinding device to paste the rubber sheet wb cut to a regular length onto the forming drum 17.
Centering the rubber sheet Wb and transporting table 20
A centering roll 21 that feeds the rubber sheet Wb upward, a conveyance device 22 that adsorbs the rubber sheet Wb and conveys it to a forming drum (not shown), and a rotary cutter 23 that cuts the rubber sheet Wb to a predetermined length. is provided. In addition, 2
Reference numeral 4 indicates a lateral feed motor of the conveyance device 21, and reference numeral 25 indicates a swing cylinder.

This invention is configured as described above, and as a method for unwinding the strip material W, the release liner W is unrolled from the roll body 11.
a and rubber sheath) Wb is unwound and separated by a peeling roll 13 that can be rotated. The distributed release liner Wa is wound around the liner winding shaft 14, and the rubber sheet Wb is unwound to the next process via the festoon 18, and the amount of sagging of the unwound rubber sheet Wb is detected and the release roll is rolled. 13 drive motors 12 and the winding drive motor 15 of the liner winding shaft 14 are intermittently controlled.

Then, the rolled-out rubber sheets wb are sequentially transported to a device 18 for pasting in the next process.

By repeating the above operations, it became possible to unwind a thin rubber sheet wb, which was previously considered impossible, and automatic pasting became possible in combination with the fixed length cutting device and the above-mentioned pasting device 18. .

〔Effect of the invention〕

In this invention, as described above, a release liner and a rubber sheet are unwound from a roll main body, each is distributed by a rotationally driveable release roll, and the distributed release liner is
As the rubber sheet is wound around the liner winding shaft, the rubber sheet is unwound to the next step via a festoon, and the amount of slack of the unwound rubber sheet is detected and the peeling roll and the liner winding shaft are intermittently driven. The release liner and the rubber sheet can be reliably distributed and automatically rolled up, and the work of unwinding the strip material can be carried out efficiently, making it possible to fully contribute to the automation of tire molding work. effective.

In addition, a peeling roll that can be driven to rotate is provided near the roll body around which the rubber sheet is wrapped around the peeling liner, and the peeling roll can be rotated to distribute the peeling liner and rubber sheet unwound from the roll body. A winding shaft that can be rotated to wind up the release liner distributed by the release roll and a rubber sheet festoon are provided nearby,
This festoon is equipped with a detection means that detects the amount of slack in the unwound rubber sheet and outputs an output signal for intermittently driving the peeling roll and the liner winding shaft, so that the peeling liner can be easily removed with a simple device. It is possible to reliably separate and unwind thin and narrow rubber sheets, and in combination with a fixed length cutting device and pasting device, it is possible to efficiently automatically supply and automatically paste fixed size materials or parts. There is a possible effect.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a belt-shaped material unwinding apparatus embodying the present invention, and FIG. 2 is an explanatory diagram of a conventional belt-shaped material unwinding method. 11... Roll body, 13... Peeling roll, 14...
...Liner winding shaft, 16...Festoon, W.
...Band-shaped material, Wa...Release liner, wb...
rubber sheet.

Claims (1)

[Claims] 1. A method for unwinding a strip material in which a release liner and a rubber sheet wound around a roll body are separated and unwound, wherein the release liner and the rubber sheet are wound from the roll body. The separated release liners are then wrapped around a liner winding shaft, and the rubber sheet is unwound to the next process via a festoon, and the unrolled rubber sheet is A method for unwinding a strip-shaped material, characterized by detecting the amount and intermittently driving a peeling roll and a liner winding shaft. 2. A peeling roll that can be driven to rotate is provided near the roll body around which the rubber sheet is wrapped around the peeling liner, and the peeling roll can be rotated to distribute the peeling liner and rubber sheet unwound from the roll body, respectively. A winding shaft that can be rotated to wind up the release liner distributed by the release roll and a rubber sheet festoon are provided in the vicinity, and the festoon detects the amount of sagging of the rubber sheet when it is unwound, and 1. A belt-like material unwinding device, comprising a detection means for outputting an output signal for intermittently driving a liner winding shaft.