JPS62215455A - Side edge restricting device for traveling web - Google Patents

Abstract

PURPOSE:To minimize the deviation of a side edge of a web and to properly restrict the edge simply and positively by providing a position restricting roller for the side edge of the web vertically to the width of the web so as to temporarily convey the web vertically. CONSTITUTION:A movable carriage 2 is provided with a position restricting roller 1 loosely fitted thereon through a vertically secured shaft and a rotatable auxiliary roller 3. The movable carriage 2 is further provided with a fixing plate 4' and a fixture 4 for fixing the carriage 2 at a predetermined position, as well as moving rollers 5. A web 7 is conveyed by a roller 6 and, after twisted in a position restricting station, it is vertically conveyed by an auxiliary roller 3 and trained around a position restricting roller 1 to be sent to a roller 6'. Even if the edge of the web 7 is deviated in either direction, the web 7 can be corrected by the position restricting roller 1 and returned to the normal central position of the roller 6'.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention is directed to the edge end position in the conveyance of flexible strips. The edge of the web (hereinafter referred to as the edge)
Normally, the edges are aligned uniformly and transported at high speed to be wound into a roll.However, it is extremely difficult to maintain a constant edge position, so it is necessary to use a means to detect the edge position using a sensor or the like. The edge position is regulated by controlling the inclination of the web conveyance roller and the like based on this detection signal, thereby aligning the edges. For example, as shown in FIG. 2, a position detection sensor 10 is placed at the edge of the conveyance web, and this electrical signal is manually input to a control device, and the output is manually input to the drive unit 11 of the conveyance roller for position regulation. The inclination of the transport rollers was adjusted using

[Problems to be Solved by the Invention] However, this method not only requires a detection means for observing the edge portion of the web along the web conveyance path, but also requires a drive unit and a signal line from the detection means. A control device was required, and space was required to provide a large amount of equipment near the sheet conveyance path.

The present invention provides a web conveyance device in which the web is conveyed smoothly at high speed without providing a sensor at the edge portion while the web is running, and also does not require a drive device for correcting the web conveyance roller. It is.

[Means for Solving the L Problems] The present invention improves the above-mentioned drawbacks by providing position regulating rollers on the side edges of the web perpendicularly to the width direction of the web while the web is continuously running. The object of the present invention is achieved by temporarily conveying the web vertically to minimize the amount of edge change. A vertical position regulating roller is installed on a movable cart, and although its fixed position varies depending on the width of the web, the cart is fixed at the start of web conveyance. One position regulating roller may be used, but one additional roller is provided as an auxiliary position, the web is temporarily held vertically, these rollers are wrapped around the web, the web is conveyed, and the web is returned to its original position and conveyed. By doing so, the amount of change in the edge of the web can be reduced.

The running web side edge regulating device of the present invention will be described below based on embodiments shown in the drawings, but the present invention is not limited to dirt.

FIG. 1 is a side view of the position regulating roller section of the device of the present invention.
Reference numeral 1 denotes a position regulating roller, which is loosely fitted onto a shaft vertically fixed to the moving carriage 2, and 3 indicates an auxiliary roller, which, like the position regulating roller I, is rotatably provided on the moving carriage 2. Reference numeral 4 denotes a fixing portion of the truck 2, which together with a fixing plate 4' fixes the truck 2 in a predetermined position.A detailed fixing method will be omitted. 5 is a vehicle for moving the trolley 2. FIG. 3 is a schematic diagram of the device of the present invention (a
) shows the overall state seen from the top, and ([)) shows the side view. The web 7 conveyed by the web conveyance roller 6 is twisted at the position regulating portion, is conveyed vertically by the auxiliary roller 3, embraces the position regulating roller 1, and advances to the conveyance roller 6°. Here, even if the edge of the web is biased to either side (for example, the position shown by the dotted line in FIG. 3), it is corrected by the position regulating roller 1 and returned to the normal position at the center by the conveyance roller 6°.

[Effects of the Invention] According to the present invention, there is no need to detect the position of the edge while the web is being conveyed, and furthermore, there is no need for a position control device for the conveyance roller, and the edges of the web can be reliably regulated. Since it is movable, the position regulating roller can be easily transported and can be manufactured at a low cost overall.

[Brief explanation of drawings]

FIG. 1 is a side view of the position regulating part of the side edge regulating device of the web of the present invention, FIG. 2 is a schematic diagram of a conventional device, and FIG. 3 is a schematic diagram of the device of the present invention. ) is a top view, (b
) is a side view.

Claims (1)

[Claims] 1) During continuous running of the web, position regulating rollers on the side edges of the web are provided perpendicular to the width direction of the web, and the web is temporarily conveyed vertically, thereby changing the edge. A side edge regulating device for a running web, characterized in that the amount thereof is minimized. 2) The side edge regulating device for a traveling web according to claim 1, wherein the edge of the web is controlled by a position regulating roller and an auxiliary roller. 3) A side edge regulating device for a traveling web according to claims 1 and 2, wherein the position regulating roller group is provided on a movable carriage.