JP2520073Y2 - Winding device for strips such as films - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a device for winding a belt-shaped material such as a synthetic resin film, a sheet, a non-woven fabric, a paper, etc., and in particular, controlling the winding shape appropriately. The present invention relates to a winding device.

(Prior Art) A conventional winding device of this type will be outlined with reference to FIG.

In a winding device for a strip 1 such as a film, a near roll 2 is installed for the purpose of preventing wrinkles from being formed in the roll, and the winding hardness (amount of air taken in) of a mill roll 4 is adjusted. The touch roll 3 is installed for the purpose of improving the winding shape of the mill roll 4.

Here, the near roll 2 is supported by the arm 5 and keeps a predetermined distance from the mill roll 4 and retreats according to the winding thickness of the mill roll 4, and keeps the film path with the mill roll 4 short to prevent the occurrence of wrinkles. .

On the other hand, the touch roll 3 is supported by the arm 6 and comes into contact with the surface of the mill roll 4 to control the pressure applied to the mill roll 4 to adjust the amount of air entrained in the mill roll 4 to obtain an appropriate roll hardness.

(Problems to be solved by the invention) However, even if the film path between the near roll 2 and the mill roll 4 is kept short, it cannot prevent the generation of wrinkles as long as it is a space path, and particularly, it is a thin film or stretches easily. In the case of a film that does not have a film, it is necessary to wind the film with a low tension, and therefore wrinkles often occur.

Moreover, the mill roll 4 considers shrinkage of the winding film,
Since a soft winding form with an appropriate amount of air is required,
Even when wound, it does not necessarily have a perfect circular shape. Therefore, the space path with the near roll 2 fluctuates, which causes winding deviation and winding wrinkles.

On the other hand, it is important for the touch roll 3 to follow the outer periphery of the mill roll 4 in order to allow the wind film to wind a uniform and appropriate amount of air. In order for the touch roll 3 to follow the mill roll 4 that is not a perfect circle and is wound at high speed, its mass must be small. But,
Conventionally, due to the arrangement of the roll and the swing fulcrum, the length of the arm 6 is long and the balance weight is heavy. As a result, the mass and inertia of the entire arm are large, and the follow-up operation is poor.

The present invention was developed in view of the above points.
An object of the present invention is to provide a band-like material winding device for a film or the like, which can obtain a good winding shape without winding deviation and which has an appropriate amount of air inclusion.

(Means for Solving the Problems) For this reason, the present invention is directed to a touch roll for controlling the pressure applied to a mill roll, which is a roll for winding a strip of film or the like, and a near roll for absorbing the extension and relaxation of the strip during winding. In the winding device for the strip of film or the like comprising the above, the touch roll and the near roll can be pressed, and the film is sandwiched between the touch roll and the near roll and guided to the mill roll as it is. The pressure control is possible, and this is a means for solving the problem.

(Function) By sandwiching the film between the near roll and the touch roll, wrinkles are eliminated, and the film is guided to the mill roll without a space pass thereafter, so that wrinkles do not occur even in winding at low tension.

Further, with the above configuration, since the arm of the touch roll can be shortened and the mass can be reduced, the inertia of the touch roll is also reduced, the followability to the mill roll is improved, and the air inclusion of the mill roll is uniformly stabilized. Let

(Embodiment) Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIG. 1 shows a schematic structure of a winding device according to a first embodiment of the present invention, in which a touch roll 3a is supported by an arm 6a having a shaft center of a near roll 2a as a fulcrum, and a cylinder 9 presses or gaps the near roll 2a. Can be set. A cylinder 8 capable of pressure control is attached to the arm 6a, and the cylinder 8 allows the touch roll 3a for the mill roll 4.
The pressure contact force of is controlled. The near roll 2a has a moving screw 11
Is supported by an arm 5a pivotally attached at one end to a carriage 10 movable on the rail 12, and a cylinder 7 attached to the arm 5a absorbs tension fluctuations of the strip 1 such as a film to balance the same. The strip 1 such as a film passes through a guide roll 13 attached to a carriage 10 and then a near roll 2a and a touch roll 3a.
It is sandwiched and wound around the mill roll 4.

FIG. 2 shows a second embodiment of the present invention, in which the near roll 2a is supported by an arm 5a having a shaft center of the touch roll 3a as a fulcrum, and a cylinder 9 enables pressure contact or a gap setting with respect to the touch roll 3a. Cylinder 7 absorbs tension fluctuations and balances. On the other hand, the touch roll 3a is brought into contact with the mill roll 4 by a pressure-controllable cylinder 8 which is supported by an arm 6a pivotally mounted on the carriage 10 as described above. Similar to the first embodiment, the strip 1 such as a film is wound so as to be sandwiched between the near roll 2a and the touch roll 3a via the guide roll 13 and wound on the mill roll 4.

(Effects of the Invention) As described above in detail, according to the present invention, the following effects are achieved.

(1) By sandwiching a band material such as a film between the touch roll and the near roll, winding wrinkles are eliminated, and a space path is eliminated from the downstream side thereof to prevent wrinkles from being generated, thereby obtaining a good mill roll appearance.

(2) With the above configuration, the arm length of the touch roll can be shortened, and the inertia can be reduced to improve the followability to the mill roll, thereby improving the stability of air entrainment of the mill roll and misalignment. Prevent.

(3) The elongation or relaxation of the film that occurs when the touch roll follows the mill roll is absorbed by the movement of the near roll, and the film path is stabilized.

[Brief description of drawings]

FIG. 1 is a roll arrangement / configuration diagram of a winding device showing a typical embodiment of the present invention, FIG. 2 is a roll arrangement / configuration diagram of a winding device showing another embodiment of the present invention, FIG. Is a schematic configuration diagram showing the roll arrangement of the entire winding device of the present invention, and FIG. 4 is a schematic configuration diagram showing the roll arrangement of the entire conventional winding device. Description of main parts of the figure 2a …… Near roll, 3a …… Touch roll 4 …… Mill roll, 5a, 6a …… Arm 7,8,9 …… Cylinder

Claims (1)

(57) [Scope of utility model registration request] 1. A winding method for a strip of film or the like comprising a touch roll for controlling a pressure applied to a mill roll which is a roll for winding the strip of film or the like, and a near roll for absorbing extension and relaxation of the strip during winding. In the take-up device, the touch roll and the near roll can be pressure-contacted, and the film can be sandwiched between the touch roll and the near roll and guided to the mill roll as it is, and the touch roll can be configured to control the pressure on the mill roll by the cylinder. A device for winding a belt-like material such as a film.