JPH06111520A - Flexible disk liner cutting / supplying method and apparatus - Google Patents

Abstract

(57) [Summary] [Purpose] To stabilize the cutting of the liner from the nonwoven web and the separation from the scrap, and to improve the accuracy of liner supply. [Structure] A liner 11 is cut out in an annular shape from a nonwoven web 10 by a die roller 1 and an anvil roller 2. Immediately after the pressure cutting, the liner 11 and the remaining scrap web 12 and liner center portion 13 are not separated, and the liner 11 and the web 12 and the liner center portion are cooperated with the separation arm 25 at the separation station 22. The parts (13) and the parts (13) are separately held and relatively displaced to be separated. Then, the separated liner 11 is fed from the intermediate position 32 to the supply arm.
Supply to the supply position 34 by 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention provides a liner for a flexible disk cartridge assembly machine.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for cutting and supplying a liner for a flexible disk by cutting and supplying the liner from a web of liner material.

[0002]

2. Description of the Related Art Flexible disk cartridges are
A non-woven liner is generally attached to the inner surface of a resin shell that rotatably accommodates the flexible disk as a protective sheet for cleaning the flexible disk and preventing abrasion. Therefore, when assembling the disc cartridge, the liner is cut into a predetermined shape from the nonwoven web and supplied to the assembling apparatus.

For cutting the liner in this case, two methods of shear cut and die cut have been used. The shear cut method has advantages in that the shape accuracy is high and the position accuracy of the punched liner with respect to the device is high, so that it is easy to secure the accuracy of the supply position.

However, this equipment requires a highly accurate die and press machine, and the initial cost and running cost are high. On the other hand, the die-cut method is easily affected by the material to be handled, and the liner and the scrap portion are not always completely separated. Since it remains, the accuracy of the device to which the liner is supplied is likely to deteriorate.

On the other hand, the device is simple and the initial cost and running cost are low. FIG. 4 shows a conventional example of the latter die-cutting method, particularly a rotary die-cutting method, of a flexible disk liner cutting / supplying apparatus of the above-mentioned two methods.
0979).

In FIG. 4, a nonwoven web 10 is sandwiched between a die roller 1 and an anvil roller 2 which form a rotary die cutting device, and is intermittently conveyed, while concentric circular blade dies 1a formed on the die roller 1 are used. Thus, the annular liner 11 is cut off. After the press cutting, the liner 11 and the remaining scraps of the web 12 and the center portion (center plug) 13 of the scrap are not separated from each other and are fed one pitch at a time on the conveyor 3.

At the donut punching station A in the middle of the conveyer 3, the center portion 13 of the liner is pushed down by the center plug separator 4, and the liner 11 is pulled by a negative pressure from the suction port provided at this station.
Separated from. Then, at the last liner / scrap separation station B of the conveyor 3, the liner 11 is separated by the distal end of the supply arm 5 relative to the web 12, and the separated liner 11 is supplied. With vacuum suction on the arm 5,
Supply on the assembly line.

[0008]

However, in such a conventional rotary die-cut type flexible disk liner cutting / supplying device, after the pressure cutting, the center part of the liner is removed at the donut punching station, Since the liner and the scrap (web) are separately held and relatively displaced in the separation station to be separated, the distance from the rotary die cut to the separation station is long, and there are the following problems.

That is, by rotary die cutting,
When the liner and the scrap are completely separated, the liner is disengaged from the scrap on the conveyor, and normal pitch feeding cannot be performed. Therefore, the liner and the scrap are not separated during the transportation, and at the last separation station, the liner can be separated from the scrap while maintaining the positional accuracy with respect to the supply arm by the predetermined separation mechanism. The sharpness must be finely adjusted.

Further, it is the peripheral length of the die roller, the weak tension applied to the scrap and the elongation of the liner material itself that determine the feed pitch of the liner on the conveyor. Among these, it is mainly the circumference of the die roller and the elongation of the liner material that cause the liner position to change in the liner / scrap separation station. First, the die roller has a smaller outer diameter due to re-polishing due to wear of the cutting edge, and the feed pitch becomes smaller, and the pitch error is accumulated at the liner / scrap separation station.

Next, various non-woven fabrics are mainly used as the liner material, but some of them are extremely liable to be stretched with respect to the tension, so that the liner feed pitch becomes very unstable.
Further, in the case of a material having a low rigidity (rigidity), the position in the width direction perpendicular to the flow could not be regulated, the liner was misaligned at the liner / scrap separation station, and the liner could not be supplied at a predetermined position.

Further, in the prior art, since the central part of the liner is pulled out prior to such separation, there is a problem that the liner is easily deformed by being fed on the conveyor with the central part open. . From this point of view, it is an object of the present invention to provide a method and apparatus for cutting and supplying a liner for a flexible disk, which stabilizes the cutting and separation of the liner from scrap and improves the accuracy of liner supply.

[0013]

Therefore, the present invention provides a liner and a scrap containing the remaining web and the center of the liner immediately after the liner is pressed into a substantially annular shape by rotary die cutting with respect to the web of the liner material. From the state where the liner is not separated, the liner and the scrap including the web and the center part of the liner are separately held and relatively separated, and the separated liner is fed to the next step. Provide a supply method.

As a device for realizing this method, a pressure cutting means for cutting the liner into a substantially annular shape by rotary die cutting with respect to the web of the liner material,
Immediately after the press cutting, the liner and the scrap including the remaining web and the center of the liner are not separated from each other. Provided is a device for cutting and supplying a liner for a flexible disk, which comprises a separating and supplying means for supplying the separated liner to the next step.

Here, it is preferable to use a member having a large friction coefficient with the liner material on the surface of the holding portion of the separating and supplying means. Further, a feed roller, which is driven in conjunction with the rotary die cutting feed operation, is provided between the pressure cutting means and the separating and feeding means to convey the liner and the scrap including the web and the center of the liner without separating them. Is preferred.

[0016]

In the present invention, in order to minimize the displacement of the liner in the flow direction and the width direction after the pressure cutting, immediately after the rotary die cutting, the liner and the scrap containing the remaining web and the center of the liner are respectively separated. Separation is ensured while at the same time giving relative displacement. When the liner is completely separated, the liner is directly supplied to the assembly line to minimize the displacement of the liner.

Here, by using a member having a large coefficient of friction with the liner material on the surface of the holding portion, it is possible to separate even an incompletely cut portion generated when abrasion progresses or when a material which is difficult to cut is handled. To Further, a feed roller that is driven in conjunction with the rotary die cutting feeding operation is provided between the pressure cutting means and the separating and feeding means, so that the die-cut liner and scrap can be reliably fed by one pitch. You can

[0018]

EXAMPLES Examples of the present invention will be described below. 1 and 2 show an embodiment of the present invention. In FIG.
The non-woven web 10 is sandwiched between the die roller 1 and the anvil roller 2 that form a pressure cutting means and is intermittently conveyed, while the annular liner 11 is formed by the concentric blade mold 1a formed on the die roller 1. Cut off.

Immediately after the pressure cutting, the liner 11 is intermittently driven in perfect synchronization with the die roller 1 and the anvil roller 2 without being separated from the web 12 and the center portion (center plug) 13 of the remaining scrap. It is nipped by the feed roller 21 and conveyed to the liner / scrap separation station 22. A pair of scrap feed rollers 23 are provided ahead of the separation station 22 in the flow direction.

The liner 11 thus cut off, the web 12 and the liner center portion 13 which are the remaining scraps are intermittently driven in perfect synchronization with the die roller 1 and the anvil roller 2, and the feed roller 21 and the scrap feed roller 23. Thus, the pitch is fed to the liner / scrap separation station 22 arranged immediately after the pressure cutting.

Liner / Scrap Separation Station 22
A pick-and-place shaft 24, which moves up / down and rocks by a cam drive, is arranged in the vicinity of, and a separating arm 25 is attached to this. In FIG. 2, the liner 11 and the remaining scrap web is caused by the lowering of the separating arm 25 at the liner / scrap separating station 22.
A mechanism for separating 12 and liner center 13 is shown.

Liner / Scrap Separation Station 22
A web receiver 26 for supporting the web 12 of the scrap and a center plug receiver 27 for supporting the liner center portion 13 are formed on the upper surface of the scrap, and between them are supported so as to be retractable relative to the liner 11. A liner knockout 28 is provided. A convex portion 29 facing the liner 11 is formed on the lower surface of the tip of the separation arm 25. Then, a scrap stripper 30 supported so as to be retractable relative to the web 12 of the scrap is provided outside the convex portion 29, and is supported so as to be retractable relative to the liner central portion 13 inside the convex portion 29. Center plug knockout 31 is provided.

Accordingly, as the separating arm 25 descends, the scrap stripper 30 and the center plug knockout 31 supported by the separating arm 25 so as to be retractable are provided with the web receiver 26 on the upper surface of the liner / scrap separating station 22.
Also, a portion other than the liner 11 is pressed between the center plug receiver 27 and the center plug receiver 27 to securely grip. Further, the liner 11 portion is sandwiched between the liner knockout 28 supported in the liner / scrap separation station 22 so as to be retractable and the convex portion 29 of the separation arm 5 and further lowered while being gripped, thereby performing a rotary die cutting. Even if there is an area where cutting is insufficient due to, it is reliably separated from scrap. A material having a large friction coefficient with the liner material such as rubber is arranged on the lower surface of the separating arm 5.

After that, when the separating arm 25 rises, the liner 11 and the liner central portion 13 are held by vacuum suction. The web 12 is conveyed as it is by the scrap feed roller 23 and is discarded. Next, the liner 11 and the liner center portion 13 are carried to the intermediate position 32 by swinging and lowering the separating arm 25. At this time, the vacuum suction is stopped, and the liner 11 and the liner center portion 13 are placed at the intermediate position 32. Here, the central portion 13 of the liner is discharged by an air blow from a suction port provided in the central portion of the intermediate position 32. The liner 11 temporarily waits at this intermediate position 32.

On the other hand, the pick and place shaft
In addition to the separating arm 25, a supply arm 33 is attached to the 24. By the lowering of the supply arm 33, the liner 11 at the intermediate position 32 is vacuum-sucked, and by the subsequent raising, swinging, and lowering of the supply arm 33, the liner 11 is brought to a predetermined liner supplying position 34, where a vacuum is generated. The adsorption is stopped, the adsorption position is set at the supply position 34, and the product is supplied to the assembly line.

In the present embodiment, the liner / scrap separation station 22, the separation arm 25, the supply arm 33 and the like constitute the separation and supply means. Also, the final liner has a notch for the window,
This is done in subsequent stations. FIG. 3 shows another embodiment.

In this embodiment, the notch for the window portion is simultaneously cut at the time of the rotary die cutting, and it goes without saying that the present invention can be applied to such a case as well.

[0028]

As described above, according to the present invention, the cutting of the liner and the separation from the scrap can be stabilized, and the accuracy of the liner supply can be improved. Particularly, by separating the center of the liner at the same time as separating the web, it is possible to prevent the liner from being deformed due to the liner being fed with the center kept open.

Further, by using a member having a large coefficient of friction with the liner material on the surface of the holding portion, the separation can be ensured. Further, by providing a feed roller that is driven in conjunction with the rotary die cutting feeding operation between the pressure cutting means and the separating and feeding means, the liner can be fed reliably without being separated from the scrap.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the same as above.

FIG. 3 is a perspective view showing another embodiment.

FIG. 4 is a perspective view showing a conventional example.

[Explanation of symbols]

 1 Die Roller 2 Anvil Roller 10 Non Woven Web 11 Liner 12 Web (Scrap) 13 Liner Center (Scrap) 21 Feed Roller 22 Liner / Scrap Separation Station 23 Scrap Feed Roller 24 Pick and Place Shaft 25 Separation Arm 32 Intermediate Position 33 Supply Arm 34 Supply position

Claims (4)

[Claims] 1. The liner and the web are separated from the web containing the liner material immediately after the liner is pressed by a rotary die cut into a substantially annular shape, and the liner and the remaining web and scrap including the center of the liner are not separated. A method for cutting and supplying a liner for a flexible disk, in which the scrap and the scrap including the center of the liner are separately held and separated by relative displacement, and the separated liner is supplied to the next step. 2. A press cutting means for pressing a liner material into a substantially annular shape by rotary die cutting with respect to the web of the liner material, and the liner and the scrap including the remaining web and liner center are not separated immediately after the press cutting. From the state, the liner and the scrap including the web and the center of the liner are separately held and relatively displaced to separate them, and the separated liner is supplied to the next step.・
Supply device. 3. The cutting / supplying device for a flexible disk liner according to claim 2, wherein a member having a large friction coefficient with the liner material is used on the surface of the holding portion of the separating and supplying means. 4. A feed roller for driving the liner and the scrap including the web and the center portion of the liner without being separated by being driven in association with a rotary die cutting feeding operation between the pressure cutting means and the separating and supplying means. The cutting / supplying device of the flexible disk liner according to claim 2, further comprising: