JPH10316281A - Touch roller support arm, and sheet winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a touch roller support device capable of lightly actuating a touch roller in miniaturizable simple structure. SOLUTION: This device is provided with a base 5 instaled on a support shaft to provide rotation force by a drive unit 11 to rotate with the support shaft 4, a steel arm member 6 of a plate with one end 6a fixed to the base 5 and with width larger than thickness, and a holding member 6 fixed to the other end 6b of the steel arm member 6 for holding an end part of a touch roller 3 to get in contact with an outer circumference of a winding roll R of a sheet S.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch roller supporting arm for supporting a touch roller contacting the outer periphery of a take-up roll in a sheet take-up device, and a sheet take-up device for simultaneously winding a plurality of sheets on a single winding shaft. Related to the device.

[0002]

2. Description of the Related Art Conventionally, a sheet winding device includes a shaft attached to a machine frame via a bearing in order to apply a contact pressure to a winding roll, a driving device capable of rotating and driving the shaft, At least one pair of brackets mounted on the shaft body slidably in the axial center longitudinal direction, an arm for rotatably mounted on each bracket, an arm for supporting a touch roller, and an elastic body for connecting the arm and the bracket. Some are provided (see Japanese Patent Publication No. 6-43220).

[0003]

However, in the above-mentioned sheet take-up device, the width and thickness of the arm are increased by securely increasing the width and thickness of the arm so that the touch roller does not swing in the sheet width direction. Since sufficient rigidity is provided, the weight and inertia of the arm are increased. Since the arm is mounted on the bracket via a bearing, the arm has some rotational resistance to the bracket. Therefore, the arm is prevented from nimble movement by its inertia and the rotational resistance of the bearing portion. As a result, when it is necessary to apply a small contact pressure, for example, for winding a thin film, the contact pressure may be incorrectly adjusted. It is likely to cause winding failure.

[0004]

SUMMARY OF THE INVENTION Accordingly, a touch roller supporting arm according to the present invention includes a base mounted on a supporting shaft for applying a rotational force by a driving device so as to rotate together with the supporting shaft, and one end mounted on the base. A plate-shaped steel arm member having a width larger than the thickness, and an end of the touch roller that contacts the outer periphery of the take-up roll of the sheet, are fixed to another end of the steel arm member. And a holder.

Since the width of the steel arm member is larger than the thickness thereof, the steel arm member is easily bent in the vertical direction. However, since the steel arm member has high rigidity in the sheet width direction, the touch roller can be reliably held so as not to swing in the sheet width direction during winding.
When a rotational force is applied to the support shaft from the drive device, the steel arm member rotates together with the support shaft and presses the touch roller onto the winding shaft. When the touch roller is pressed against the take-up roll, the steel arm member is bent by the reaction, and the touch roller can be elastically contacted with the take-up roll with a force corresponding to the amount of the bending.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The touch roller supporting arm of the present invention
A base mounted on a support shaft that applies a rotational force to the driving device so as to rotate together with the support shaft, and a plate-shaped steel arm member having a width larger than the thickness and having one end fixed to the base. And a holder fixed to the other end of the steel arm member for holding an end of the touch roller that comes into contact with the outer periphery of the sheet take-up roll.

In the sheet winding device of the present invention, a winding shaft for winding a plurality of sheets at the same time to form a plurality of winding rolls, a plurality of touch rollers contacting an outer periphery of the plurality of winding rolls, A touch panel is provided with a rotatable support shaft supported in parallel with the winding shaft and a driving device for applying a rotational force to the support shaft, and the touch roller is supported by the above-described touch roller support arm of the present invention.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, in the sheet winding device, the sheet S is wound in a roll shape around a winding core C mounted on the outer periphery of the winding shaft 1, and becomes a winding roll R. During winding, the outer periphery of the winding roll R is in contact with the touch roller 3 supported by the touch roller supporting arm 2.

The touch roller support arm 2 includes a base 5 mounted on a support shaft 4 provided in parallel with the winding shaft 1, a plate-shaped steel arm member 6 having one end 6a fixed to the base 5, and a touch panel. Roller 3
And a holding member 7 fixed to the other end 6b of the steel arm member 6 for holding the end of the steel arm member 6.

The support shaft 4 is provided so as to be rotatable about its longitudinal axis, and is formed so that its cross section is square. The base 5 is fitted on the outer periphery of the support shaft. Therefore, the base 5 can rotate together with the support shaft 4. The base 5 includes a holding plate 8 and a clamp screw 9. One end of the steel arm member 6 is inserted between the upper surface of the base 5 and the holding plate 8 to tighten the clamp screw 9. , So that it can be held firmly.

The holder 7 holds the center shaft 3a protruding from the body of the touch roller 3, receives the other end 6b of the steel arm member 6 in a groove formed in the center shaft 3a as shown in FIG. It can be tightened and fixed at 10. According to this embodiment, the holder 7 always grips the center axis 3a of the touch roller 3, and when it becomes necessary to remove the touch roller 3, the holder 7 is removed from the steel arm member 6. However, the holding member 7 may be fixed to the steel arm member 6 at all times, and the touch roller 3 may be released from the holding member 7 and removed.

The support shaft 4 is provided with a rotational force by a driving device 11. In this embodiment, the drive device 11 is a fluid pressure cylinder device in which the tip of a piston rod 11a is connected to an arm 4a provided at one end of a support shaft 4 and the upper end of the cylinder is pivotally connected to a machine frame 5.

The steel arm member 6 is formed to have a width larger than the thickness as shown in FIG. And in this embodiment, it is made of spring steel, its thickness is 3.8 mm, its width is 20 mm and its length is about 300 mm.

According to the present invention, the steel arm member 6 is not limited to spring steel, but may be made of a known material having a function similar to that of spring steel, such as high-speed steel, stainless steel, or chromium molybdenum steel, if necessary. The thickness, width, and length of the arm member 8 are not limited to the above-described values, and may be changed as needed.

As shown in FIG. 3, the reel 1 is provided with
A plurality of sheets S are wound around the core C at the same time to form a plurality of winding rolls R. Each sheet S is obtained by cutting a wide band-like sheet into a plurality of strips by a slitter (not shown) in this embodiment. The touch roller 3 is provided for each winding roll R, and each end is supported by the touch roller support arm 2 described above. The support shaft 4 has both ends at machine frames 12, 12.
And is common to each touch roller support arm 2. The base 5 provided on the touch roller support arm 2 can be slid on the support shaft 4 and set at a required position. Therefore, the support position of the touch roller 3 by the touch roller support arm 2 can be changed according to the change of the sheet width and the winding position.

[0016]

According to the touch roller supporting arm of the present invention,
Since the touch roller is held by a plate-shaped steel arm member having a width larger than the thickness, each touch roller can be elastically contacted with the winding roll, and the weight of the arm member can be reduced.
Further, since the arm member can be mounted on the support shaft without a bearing, there is no influence of the rotational resistance of the arm member at all unlike the related art. Therefore, a touch roller that operates lightly can be obtained, and the surface of the take-up roll can be reliably traced by the touch roller. Further, it is possible to obtain a touch roller supporting device having a simple configuration and capable of being downsized.

According to the sheet winding device of the present invention, even if there is a difference in outer diameter between the respective winding rolls, each of the touch rollers can be pressed with substantially the same force, and a high quality winding roll can be obtained. Becomes possible. Moreover, since no bearing or spring is required, the structure is simplified, the space occupied by the touch roller portion is reduced, and a compact and operable device can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a sheet winding device according to an embodiment of the present invention.

FIG. 2 is a front view showing a steel arm member of the touch roller supporting arm in a cross section.

FIG. 3 is a schematic plan view of a sheet winding device according to one embodiment of the present invention.

[Explanation of symbols]

 S sheet R take-up roll 1 reel 2 touch support device 3 touch roller 4 support shaft 5 base 6 steel arm member 7 holder 11 drive device

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 1, 1997

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

Claims (2)

[Claims] 1. A base, which is mounted on a support shaft for applying a rotational force by a driving device so as to rotate together with the support shaft, and a plate-like member having one end fixed to the base, the width being larger than the thickness. A touch roller supporting arm, comprising: a steel arm member; and a holder fixed to another end of the steel arm member for holding an end of the touch roller that contacts an outer periphery of a sheet take-up roll. . 2. A winding shaft for winding a plurality of sheets at the same time to form a plurality of winding rolls, a plurality of touch rollers in contact with the outer periphery of the plurality of winding rolls, and supported in parallel with the winding shaft. A sheet winding device comprising: a rotatable support shaft; and a drive device for applying a rotational force to the support shaft, wherein the touch roller is supported by the touch roller support arm according to claim 1.