JPS6016588Y2 - Equipment for extracting core tubes from unrolled sheets or films, etc. - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for pulling out a core tube from an unrolled sheet or film, and is intended to realize the pulling out of a core tube extremely simply and reliably.

Traditionally, the core tube is tightly wound with sheets, films, etc. during production, and the tighter the original fabric, the stronger the adsorption force on the core tube, making it extremely difficult to unwind. After the spinning operation was completed, even if an attempt was made to remove the core tube in order to package the roll, the workability was extremely poor.

Attempts have also been made to taper the core tube itself for removal, but a small taper does not have much of an effect, and a large taper allows the sheet or film to be wound more beautifully, but is unsightly. It was also difficult to use as a roll.

For this reason, the traditional method of punching out core tubes has still been the mainstream, but this method is extremely troublesome, involves a lot of time loss, and is inefficient. It was difficult to tie up.

Therefore, this invention has been made to solve the above-mentioned conventional drawbacks, and its characteristic structure is that air jet holes are formed on the outer periphery of the core tube, which does not change in diameter even when air is supplied, and the core The air supply pipe can be freely connected to the pipe, and a part of the core pipe has a protruding pull-out receiving part.
The present invention consists in that a catapult having an action part that engages with the drawing action receiving part is connected to a reciprocating mechanism.

Next, an embodiment of this invention will be illustrated below with reference to the drawings. The core tube 10 around which the winding material 30 is wound does not change in diameter even when air is supplied, and the outer circumference of the core tube 10 The rear end 1 of the core tube 10 is formed with an air jet hole 11.
2 is closed, and an air supply port 13, commonly known as a magic joint, is formed at the front of the core tube 10.
The air supply pipe 14 can be contacted thereto.

Reference numeral 15 indicates a drawing-action receiving portion protruding from a part of the core tube 10;
17 is a bed serving as a workbench, 17 is a part of the bed 16 and serves as a core tube support portion that also serves as a stopper for stopping the winding 30 from moving together with the core tube 10, and 18 corresponds to the above-mentioned action receiving portion 15. It is a working part that is pulled by an engagement action by touching, and is connected or fixed to a part of the catapult 19.

The action receiving portion 15 and the action portion 18 are not limited to those shown in the drawings, and various types of engagement are possible.

Reference numeral 20 indicates a cylinder mechanism using air or oil by reciprocating the catapult 19.

The unwound 30 that has been wound around the core tube 10 is set on the bed 16 as shown in FIGS. At the same time, air is supplied to the core tube 10, and air is ejected from the air jet hole 11 toward the outer periphery of the core tube, that is, the inner periphery of the unrolled tube, and the core tube is pulled out while separating the outer periphery of the core tube and the inner periphery of the unrolled tube as much as possible with air. As a result, the core tube 10 is pulled out by weakening the contact force between the outer periphery of the core tube and the inner periphery of the unrolled tube, which are in strong contact when winding up a sheet or the like.

The core tube can be easily pulled out from the winding 30 by such a pulling method.

Regarding the air jet that is applied when the core tube 10 is pulled out, an air jet hole 11 is formed on the rear side of the core tube 10 as shown in FIG. In the case of a configuration in which the core tube 10 is withdrawn, the timing at which the air jet hole 11 communicates with the atmosphere can be set to be close to the end of the core tube withdrawal, making it easier to avoid air leakage.

In addition, when forming the air jet holes 11 in the core tube 10 as one room, it is difficult to form the air jet holes 11 in the entire core tube 10 due to the above considerations, but the inside of the core tube 10 is As shown in the figure, if the classroom 10' is made into a separate room and air jet holes 11 are provided in each room, and air supply pipes are connected and arranged individually, the air jet will be applied to the entire area from the tip to the rear side at the beginning of pulling out. When the air blowing of the chambers that have been sequentially pulled out is stopped, the air pressure in the remaining chambers does not drop and subsequent extraction is performed smoothly.
This is a suitable implementation when the capacity or unwinding width (core tube length) is large.

FIG. 4 shows an outline of a packaging line in which this devised device is constructed as described above and is used in the following stages. In the winding stage A, sheets and the like are transferred from the extruder 1 to the core tube 10. After winding up, cut the edge of the sheet with cutter 2, and unwind 3.
0 is a core tube drawing stage B in which this devised device is used in a packet 4 suspended from a conveying means such as a mole rail hoist 3.
After the core tube 10 is pulled out from the web 30, it passes through a direction change step C, and the web 30 is collected through a packaging stage using a bag or the like.

In addition to synthetic resin, the sheet may be made of paper or a sheet laminated with synthetic resin.

Moreover, in the packaging line for sheets and the like that is consistent from the extruder 1 to the packaging stage, this invention in particular allows the core tube 10 to be drawn out smoothly as described above.

As described above, according to this device, air is ejected from the air ejection hole 11 of the core tube 10, and the winding 30 is transferred to the core tube 1.
By pulling out the core tube 10 while separating it from zero, the core tube can be pulled out with as little resistance as possible while relaxing the degree of contact between the outer periphery of the core tube and the inner periphery of the winding.

Then, the core tube 10 is pulled out by the above-mentioned air jet.
The catapult 19 is towed and moved by the reciprocating cylinder mechanism while being assisted by the disengagement action of the pull-out action receiving part 15 of a part of the core tube and the action part 18 on the catapult 19 side in an engaged state. Since the device is designed to allow the core tube 10 to be pulled out, there is no vibration when pulling it out.
This means that stable core tube drawing work can be achieved.

Therefore, it can contribute to speeding up the core tube drawing operation within the integrated packaging line from unwinding to final packaging.
This is an idea that can contribute to improving work efficiency.

[Brief explanation of the drawing]

The figures illustrate the embodiment of this invention; Fig. 1 is a sectional view, Fig. 2 is a sectional view from the side taken along line ■-■,
FIG. 3 is a sectional view showing a separate embodiment, and FIG. 4 is a schematic diagram of a reel packaging line including a stage equipped with a core tube drawing device according to the invention. 10...Core pipe, 11...Air jet hole, 13...Air series connection port, 14...Air supply pipe, 15...・Pull-out action receiving part, 16・
... Bed, 17 ... Stop portion and support portion, 18 ... Action section, 19 ... Catapult, 20 ... Cylinder mechanism, 30・・・・・・
Unrolled.

Claims (1)

[Scope of Claim for Utility Model Registration] ■ Air jet holes are formed on the outer periphery of the core tube, which does not change its diameter even when air is supplied, and an air supply tube can be freely connected to the core tube, and a part of the core tube has a pull-out effect. A method for unwinding sheets, films, etc., characterized in that the receiving part is in a protruding shape, and a catapult having an action part that engages with the drawing action receiving part is connected to a reciprocating mechanism. Core tube extraction device. 2. The device for drawing out a core tube from a roll of a sheet or film, etc., as set forth in claim 1 of the above-mentioned utility model registration claim, wherein an air jet hole is formed on the rear side of the outer periphery of the core tube. 3. The seat according to claim 1 of the above utility model registration claim, wherein air jet holes are formed over the entire outer periphery of the core tube, and air supply tubes are individually connected to the interior of the core tube, which is separated into several chambers. Or a device for drawing out core tubes from unrolled films, etc. 4. The device for drawing out a core tube from an unrolled sheet or film, etc., as set forth in claim 1 of the above-mentioned utility model registration, wherein the reciprocating mechanism is a cylinder mechanism.