JPS6210285Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for collecting treated sheets in which a liner material is thermally welded onto a synthetic resin sheet, which is the material of the outer cover, in a stacked state in a collection box when manufacturing magnetic disk jackets. .

As a conventional example of a sheet accumulation and collection device, a presser roller is placed inside a collection box, and sheets falling into the collection box are allowed to slide under the presser roller, thereby applying resistance to the sheet feeding speed. For example, in 1973-
It is publicly known from Publication No. 3749.

In such a known example, a presser roller is rotatably supported in the collection box via a frame, and the collection box, the presser roller, and the frame are integrated.

However, the sheet to which the present invention is directed is particularly an intermediate molded product of a magnetic disk jacket, which is once collected in a collection box and then transferred to the next processing step. Naturally, there are many collection boxes there. Assembling the presser rollers to each collection box via the frame complicates the structure of the collection box and requires presser rollers corresponding to the number of collection boxes, which is expensive. The task of taking out the sheets from the collection box in the next process becomes troublesome.

Focusing on this fact, the present invention is designed to collect a processed sheet in which a liner material is thermally welded onto a synthetic resin sheet, that is, a jacket intermediate molded product, by allowing it to fall naturally into a collection box in a magnetic disk jacket manufacturing device. To provide a sheet stacking and collecting device capable of stacking a large number of sheets in a collecting box in an orderly manner while cushioning the edges of the sheets so that they do not collide with the inner wall of the collecting box.

Another object of the present invention is to minimize the number of members, simplify the structure, and obtain it at low cost.

Still another object of the present invention is to be able to reliably know that a predetermined amount of sheets have been accumulated in each collection box, thereby contributing to labor savings.

In order to achieve the above object, the present invention is equipped with a cylindrical presser roller that is placed in a horizontal position on the front end side of the collection box in the sheet feeding direction, and when the sheets are accumulated in the collection box. The present invention is characterized in that it is equipped with a sensing mechanism that detects that a predetermined amount of sheets have been collected in the collection box by using the pressing roller rising above the collection box.

A specific example thereof will be explained below with reference to the drawings.

The illustrated apparatus is used during the process of manufacturing floppy disk jackets.

1 and 2 illustrate the floppy disk, which consists of a jacket 1 and a magnetic disk 2 rotatably enclosed within the jacket. The jacket 1 is made by attaching a non-woven liner 4 made of synthetic fiber such as polypropylene to the inner surface of an outer cover 3 made of vinyl chloride in the manner described below, and has a drive shaft insertion hole 5, a magnetic head insertion hole 6, and an index hole 7. It is a standard specification with holes etc.

Next, to explain the manufacturing process of the jacket 1 in order, as shown in FIG. A liner material 4a cut into a slightly smaller size is positioned and placed. Then, as shown in FIG. 4, first, as shown in FIG.
Spot heat weld a to the sheet 3a at two points _p1 on the front and back. Next, the upper left edge 9b of the liner material 4a
In the same way, spot heat weld the sheets to the sheet 3a at five locations p ₂ on the front and back. After temporarily fixing the liner material 4a to the sheet 3a as described above, the drive shaft insertion hole 5
Then, the liner material 4a is thermally welded to the sheet 3a in annular patterns A and B that match the magnetic head insertion holes 6. When this is completed, the liner material 4a is thermally welded to the sheet 3a in a large number of parallel linear patterns C running in the left-right direction over almost the entire surface using a roller welding means while feeding the sheet 3a to the right in the figure.
This completes the heat welding process.

The processed sheet 3a that has undergone this heat welding process is transferred to the next punching process, where, as shown in FIG.
The jacket 1 is cut into an outer shape having dimensions b and 10c, and various holes 5, 6, 7, etc. are punched out at the same time to obtain a jacket 1 in an unfolded state.

Next, as shown in FIG. 6, the unfolded jacket 1 is folded in half from the left and right center portions, and the front and rear welding margins 10a and 10b are folded and overlapped and thermally welded, thereby forming the three-way opening periphery. The front and rear portions are sealed, thereby forming the jacket 1 into a rectangular bag shape with a disk insertion opening 12 opened on one of the left and right sides.

Thereafter, as shown in FIG. 7, the magnetic disk 2 is inserted into the jacket 1 through the disk insertion opening 12, and finally the remaining welding margin 10c is bent and overlapped and thermally welded, thereby inserting the disk. Once the opening 12 is sealed, the finished floppy disk shown in FIG. 1 is obtained.

Now, the present device is applied when collecting and collecting treated sheets 3a that have undergone the above-mentioned thermal welding process. That is, as shown in FIGS. 8 and 9, the sheet 3a with the liner material 4a heat-sealed passes through the chute 13 and naturally falls into the collection box 14, and is sequentially collected in the collection box 14 in a stacked state. shall be carried out. In addition, in the present invention, a lightweight circular pressing roller 15 formed of oblong plastic is placed in a horizontal position on the tip side of the collection box 14 in the sheet feeding direction (right end position in the figure). In this case, the leading end of each sheet 3a sent from the chute 13 to the collection box 14 is pushed up while rotating the presser roller 15 and slides under it. As a result, even if the falling speed of the sheet 3a is high, the leading edge of the sheet 3a will not collide with the front inner wall surface 14a of the collection box 14, but will be cushioned and lightly abutted, and a large number of sheets 3a will be stacked in the same orderly manner. This is what led to this. In addition,
When one collection box 14 is full of sheets 3a, a collection box full detection mechanism is activated and the feeding of sheets 3a into the collection box 14 is stopped. That is, as shown in FIG. 10, the sensing mechanism consists of a light emitter 16 and a CdS-using light receiver 17, and the holding roller 15 rising above the collection box 14 is used for catching. The collection box 14 that has been collected in a predetermined amount is transported to a place where the sheet punching process described above is performed, and the chute 13 is placed in the empty collection box 14.
placed below. At that time, the presser roller 15 will be transferred to the empty collection box 14.

As explained above, according to this invention, the press roller 15 is placed in the collection box 14, and the leading end of the sheet 3a that is dropped and supplied from the chute 13 to the collection box 14 is placed under the press roller 15. Since the sheet 3a is slid in, no matter how forcefully the sheet 3a falls and is fed, the sheet tip will not collide with the front wall surface 14a of the collection box 14 due to the resistance to sliding under the rollers, and will collide with the front wall surface 14a of the collection box 14 and will not be pushed upwards. It can also effectively prevent the paper from curling up significantly. In addition, the sheets 3a can be collected by stacking them neatly in a collection box with their leading edges aligned. Also, sheet 3a
Since the roller 15 rotates freely when applying sliding resistance to the sheet, the sheet surface is less damaged than when a similar function is provided by, for example, a pressing spring. Therefore, when manufacturing the magnetic disk jacket 1, it is optimal to collect a large number of sheets 3a to which the liner material 4a is thermally welded into the collection box 14 in an accumulated state without damaging them.

In particular, this type of sheet 3a should be stored in the collection box 14 once.
After being collected, they are transferred to the next processing step, and a large number of collection boxes 14 are required for this purpose. However, the minimum number of pressing rollers 15 required for the sheet collecting and collecting device is one. Moreover, unlike the conventional configuration in which each collection box 14 is individually equipped with a presser roller 15, the presser roller 15 is simply inserted into each new empty collection box 14 that is rotated one after another, making the structure simple and inexpensive. Can be implemented. Nevertheless, the presser roller 15 placed in the collection box 14 is pushed and moved by the contact with the sheet 3a, and is supported at the normal position where it is always in contact with the front inner surface of the collection box 14. , presser roller 15
can be automatically positioned and supported without using any special frame members. The sheet 3a collected in the collection box 14 is transferred to the next processing step, and even at that time, the sheet 3a can be easily taken out from the collection box 14 without any hindrance.

In addition, in the present invention, when the collection box 14 is full of sheets 3a, the pressure roller 15 rises above the collection box 14.
4 is equipped with a mechanism for sensing that a predetermined amount of sheets 3a have been collected. Therefore, just the right amount of sheets 3a can be collected in the collection box 14, and there is no need for the operator to watch over the entire collection process, contributing to labor savings. Furthermore, since this sensing mechanism utilizes the movement of the presser roller 15, it also has the advantage of simplifying the structure.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which FIG. 1 is a partially cutaway perspective view of a floppy disk, and FIG. 2 is a longitudinal sectional view thereof. FIGS. 3 and 4 are plan views illustrating the manufacturing process of a floppy disk jacket, respectively. FIG. 5 is a plan view showing the jacket in its unfolded state, FIG. 6 is a perspective view showing the jacket in its folded state, and FIG. 7 is a plan view showing the state in which the magnetic disk is inserted into the jacket. FIG. 8 is a partially cutaway perspective view illustrating the sheet accumulation and collection device according to the present invention, FIG. 9 is a longitudinal sectional front view thereof, and FIG. 10 is A-A in FIG. 9.
FIG. 1...jacket, 2...magnetic disk, 3...
...Outer cover, 3a...Synthetic resin sheet, 4
...Nonwoven fabric liner, 4a...Liner material, 1
2...Disk insertion slot, 13...Shoot, 14
... Collection box, 15 ... Presser roller, 16 ... Emitter, 17 ... Light receiver.

Claims (1)

[Scope of utility model registration request] A chute 13 through which a processing agent sheet 3a formed by thermally welding a liner material 4a onto a synthetic resin sheet 3a is passed, and a collection box 1 in which a large number of sheets 3a guided and supplied from the chute 13 are collected in a stacked state.
4, a cylindrical presser roller 15 is placed in a horizontal position on the tip end side of the collection box 14 in the sheet feeding direction, and a cylindrical presser roller 15 is placed in a horizontal position on the top of the collection box 14. A sheet in a magnetic disk jacket manufacturing apparatus, characterized in that it is equipped with a mechanism that detects that a predetermined amount of the sheet 3a has been collected in the collection box 14 by utilizing the rising of the pressing roller 15. Accumulation collection equipment.