JPS586654B2 - Sheet-shaped material winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a surface-driven shaftless winding device for winding up sheet-like objects (hereinafter simply referred to as sheet-like objects) such as nonwoven fabrics, film-like objects, and knitted fabrics. .

Generally, sheet-like materials are wound by placing a core without an axis on rolls for surface-driving the core, that is, back rolls and front rolls, applying surface pressure, and driving the core. .

In recent years, development of higher speeds and mass production has progressed, resulting in faster winders, larger packages, and wider sheet products to be wound.

For example, the width of a sheet-like product ranges from several meters to several meters for large sheets, the winding diameter is 1 to 2 meters, and the weight is several hundred kilograms to several hundred kilograms.
Large ones, numbering several thousand or more, are used.

Accordingly, the core used as a winding core for the sheet-like material is inevitably a metal core with high strength.

In the process of continuously winding a sheet-like material, it is necessary to quickly supply the core during dotting, but the core itself is large in weight and shape, making the work extremely difficult and requiring a lot of manpower. In addition to reducing operability, this often leads to accidents such as falls, which also poses safety problems.

Many wine goos for sheet-like materials have been proposed and automation is progressing, but the equipment in all of them is extremely complicated.

For example, in many cases, the take-up core is supported by a rotary arm and rotated sequentially as winding begins, and the take-up core is taken out at the dotting position, but it is difficult to implement such equipment in the case of the present invention, which is extremely large in weight and shape. It is.

In addition, many methods have been proposed for automatically feeding empty cores using feeders, but since they use a dropping method, they are extremely dangerous and may cause equipment damage. The flaw is that it is easy to invite

The sheet-like material winding device of the present invention was obtained in order to eliminate these defects, and has the following configuration.

That is, in a surface-driven shaftless winding device for winding a sheet-like material, there is a core stock member on the sheet-like material supply side, a core supply device that intermittently feeds out empty cores one by one, and a stock position of the core stock member. a core chuck device that rotatably supports both end surfaces of the empty core at a position above the lower end and at the top position of the winding core during the winding process; a core transport device that reciprocates between the core stock member and the core chuck position; This is a sheet-like material winding device characterized by being provided with a surface pressure cylinder for raising and lowering a core in a vertical direction.

Hereinafter, the sheet-like material winding device of the present invention will be explained in detail with reference to the drawings, but it goes without saying that the present invention is not limited to only such embodiments.

FIG. 1 is a schematic diagram of the entire sheet winder according to the present invention, FIG. 2 is an explanatory diagram of a core supply section, and FIG. 3 is a perspective view of a core transfer device.

In the figure, 1 is a core stock member which is a core stock stand, 2 is a core, 3 is a core supply device, 4 is a guide rail, 5 is a core transfer device, 6 is a chain wheel, 7 is a core chuck device, 8 is a roller chain, 14, 15 is a limit switch.

An enlarged view of the main components of the core supply section is shown in FIGS. 2 and 3.

In the present invention, the first important thing is the place to store the empty cores, but since the shape of the rolled up material is large, it is important to ensure that it does not become an obstacle to the doffing operation, so it is necessary to store the empty cores on the sheet supply side. , and for reasons described later, it is necessary to provide the stock position so that the lower end of the stock position is located below the empty core chuck position.

The operation will be explained using FIG.

When the core transfer device 5 retreats to position B shown in the figure, the limit switch 14 is activated, the core supply device 3 rotates in the direction of arrow C, and the core transfer table 5, which is a core transfer device, is activated.
It supplies one piece to the machine and waits until the next dotting time.

Next, when a dotting signal is issued, the chain wheel 6 is rotated to move the core transfer table 5 forward in the direction of arrow a to the core chucking position A.

At this position, the limit switch 15 is activated, and both ends of the core 2 are chucked by the chuck device 7. When the chuck is completed, the core transfer table retreats in the direction of arrow b and returns to its original position.

In the present invention, since the core supply section is located below the chuck position, cores can be safely transferred without providing a core gripping device.

FIG. 4 is a schematic diagram showing the core chuck device 7.

In the same figure, 22.22' is the chuck body, 23.23
'' is a shaft that can be reciprocated in the left and right direction by an air cylinder, etc., and 24.24' is a core support roll that is rotatably attached to the shaft, and the support roll is pressed against both ends of core-2 to support the core. .

In the case of large-scale winding as in the present invention, there is a problem that the machining accuracy of the core decreases and the core becomes misaligned. It is preferable to make it possible to adjust misalignment by providing this.

When the core 2 is supported by the core chuck device 7, the core is lowered along the guide rail 9 and the front roll 10
The core is placed on the bank roll 11 with surface pressure applied thereto, and winding is started by driving the core to the surface.

13 is a sheet-like material to be wound up.

Note that the surface pressure cylinder 12 is used to lower the core and apply surface pressure.

16 is a shaft that is hung on both frames 21, 17 is a sprocket, 25 is a chain, and 19 and 20 are chain fixing parts.

10. As the sheet material 13 is rolled up by the front roll and back roll of 11, the core 2
The winder rises along the guide rail 9, and when a specified amount of winding is completed, a full winder signal is sent to dot the winding core to the rear of the winder (on the left side in the figure) using a dotting device (not shown). The core transfer table 5 is advanced.

By repeating this operation, winding is performed continuously.

In a winder with a large shape and weight such as the one of the present invention, it is difficult to use a winder that drives the core to wind the winder.
In such a winder, in order to prevent the sheet-like material being wound from deforming, the surface pressure should be reduced as the sheet-like material is formed on the core, and should be zero or negative when the specified amount has been wound. Preferably on the pressure side.

What is required in the present invention is to set the next empty core at the chuck position at the top position of the winding core when the sheet material has been wound up by a specified amount.

As mentioned earlier, considering the method of applying surface pressure,
At the winding end position, the winding core is at the top and the surface pressure is at its minimum value. In other words, if the core chuck position is at the bottom, the core is positioned with surface pressure applied. This is because there are defects such as reduced operability when winding the winding start sheet, and furthermore, it is necessary for safety to feed the cores from below.

Since the apparatus of the present invention has the above-described structure, it has excellent operability during doffing, and there is no problem in terms of safety.

[Brief explanation of the drawing]

Fig. 1 is a schematic view of an example of the entire sheet-like material winding device according to the present invention, Fig. 2 is a detailed view of the core supply section, Fig. 3 is a perspective view of the core transfer section, and Fig. 4 is a diagram of the core chuck device. It is a schematic diagram. 1: core stock member, 2: core, 3: core supply device, 5: core transfer device, 7: core chuck device,
10: Front roller, 11: Back roller, 12: Surface pressure cylinder.

Claims (1)

[Claims] 1. In a surface-driven shaftless winding device for winding a sheet-like material, a core stock member is provided on the sheet-like material supply side, a core supply device that intermittently feeds out empty cores one by one, and a stock position of the core stock member. A core chuck device rotatably supports both end surfaces of the empty core at a position above the lower end and at the topmost position of the winding core during the winding process, and a core transporter that reciprocates between the core stock member and the core chuck position. A sheet-like material winding device characterized in that it is provided with a surface pressure cylinder for raising and lowering a core in a vertical direction.