JPH0767680B2 - Punching machine for thin plates - Google Patents

Description

TECHNICAL FIELD The present invention relates to a punching device for thin plates used when manufacturing products such as floppy disks.

[Prior Art] For example, in the case of manufacturing a floppy disk, a press device punches out a product while intermittently feeding a film material by a feed device. However, in the past, one feed device was provided before or after the press device. It is installed and transported. FIG. 3 shows an example in which the feed device 2 is arranged in the front stage of the press device 1, and FIG. 4 shows an example in which the feed device 2 is arranged in the rear stage of the press device 1.

[Problems to be Solved by the Invention] However, when the film material is conveyed by one feed device to the press device as in the conventional case, there is a problem that the film material meanders or undulates.

[Means for Solving Problems] In the present invention, an uncoiler for feeding a rolled film material to the pressing device and a film material delivered from the uncoiler are arranged immediately before and after the pressing device, respectively. It is characterized by comprising a feed device, a belt which is arranged between the both feed devices and which operates the both feed devices in synchronism with each other, and a coil which winds up a punched film material from the press device. .

[Operation] The uncoiler sends out the rolled film material, and the fed film material is conveyed in synchronism with the fed film material before and after the pressing device. At this time, at the installation position of the press device, the feeding speed of the film material becomes the same as the feeding speed thereof, so that the corrugation phenomenon and the elongation phenomenon of the film material do not occur, and the processing accuracy is improved. As a result, the film material stably passes through the pressing device, and the film material is reliably supplied and the waste film material is recovered.

[Embodiment] An embodiment in which the present invention is applied to a floppy disk manufacturing line will be described below with reference to FIGS. 1 and 2.

First, an outline of the entire floppy disk manufacturing line will be described with reference to FIG. In the figure, 10 is a press machine, which is made of polyester film material W to floppy disk F.
To punch through. In front of this press device 10,
Uncoiler 21 that sends out the rolled film material W
And an accumulator 22 for stabilizing the fed film material W, and a floppy disk F at the rear stage.
A coiler 23 for winding the punched waste film material Wa is arranged. Further, feed devices 11 and 12 are provided immediately before and immediately after the pressing device, respectively, and the film material W is conveyed while being stretched between them.

The concept of the structure of this part will be described with reference to FIG.
The press device 10 includes upper and lower molds 13 and 14 and performs a punching operation at regular time intervals. The feed devices 11 and 12 intermittently feed the film material W in the direction of the arrow A in synchronization with the operation timing of the press device 10. The film material W is sandwiched between upper and lower rollers (not shown), and the film material W is inserted between the feed devices 11 and 12. Transport in a stretched state. Both feed devices in this case
The operation timings and the feed rates of 11 and 12 are synchronized by the belt 15 communicating with each other.

Further, the floppy disk F punched and formed by the above-mentioned press device 10 has a structure as shown in FIG.
The film material W is separated by the separating device 16 installed immediately after
After the gas is separated from the above, it is mounted on the lower conveyer 17 and the punching gas in the center hole is separated while being conveyed by the conveyer 17. Then, the floppy disk F is conveyed to the stacking 19 in the pin container 18, and the pin of the pin container 18 is passed through the center hole to make the pin container 18
The sheets are sequentially stacked on top of each other by a predetermined number, and are carried out together with the pin container 18 by the carry-out device 20.

Next, the operation will be described.

The intermittent transfer of the film material W to the press device 10 is
It is performed by the feed devices 11 and 12. In this case, the feed device 11 arranged immediately before and immediately after the press device 10,
Since the film material W is conveyed while being stretched between the film 12, the film material W passes through the press device 10 while being accurately guided, and the film material W does not meander during the passage. Further, since the feed devices 11 and 12 operate in synchronization with each other by the belt 15 and convey the film material W with the timing of the press device 10, the film material W
Does not wobble despite being intermittently transported. Further, an uncoiler 21 and an accumulator 22 are arranged in the preceding stage of the press device 10, and the tape-shaped film material W is stably supplied toward the press device 10.
A coiler 23 is disposed in the subsequent stage, and the waste film material Wa sent from the press device 10 is sequentially wound.

Therefore, the supply of the film material W, the punching process of the floppy disk F, and the recovery of the waste film material Wa are stably and efficiently performed.

[Effect of the Invention] As described above, according to the present invention, the film material is reliably guided by the feed device immediately before and immediately before the pressing device, so that the film material does not meander.
Also, the feed device operates synchronously with the belt,
Since the film material is transported stably, the film material does not wavy. Furthermore, an uncoiler is placed in the front stage of the press machine to stably supply the film material to the press machine, and a coiler is placed in the latter stage of the press machine to punch out the product sent from the press machine. Take up one by one. Therefore, the supply of the film material, the punching of the product, and the recovery of the film material can be performed stably and efficiently.

[Brief description of drawings]

FIG. 1 is a side view showing the concept of essential parts of an embodiment of the present invention,
FIG. 2 is a schematic configuration diagram of a floppy disk manufacturing line incorporating the punching apparatus of the present invention, FIG. 3, and FIG.
The figure is a view showing the arrangement of a feed device in a conventional punching device. W …… Film material F …… Product (Floppy disk) 10 …… Pressing device 11, 12 …… Feeding device 15 …… Belt 21 …… Uncoiler 23 …… Coiler

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Victory Kanda 3 No. 1 Kogane-cho, Niigata City, Niigata Mitsubishi Metal Co., Ltd. Niigata Works (72) Inventor Masanobu Tanaka 1 No. 3 Kogane-cho, Niigata City, Niigata Mitsubishi Metal Co., Ltd. Niigata Seisakusho Co., Ltd. (56) Bibliography Showa 50-44787 (JP, U) Showa 52-93800 (JP, U) JP 57-52888 (JP, B2)

Claims (1)

[Claims] 1. An uncoiler for feeding a rolled film material to the pressing device in a device for conveying a tape-shaped film material by a feed device and punching a product from the film material by a pressing device. The feed device, which is arranged immediately before and immediately after, conveys the film material sent out from the uncoiler, the belt which is arranged between these both feed devices and operates the both feed devices in synchronization, and the product is punched out. A punching device for thin plates, comprising a coiler for winding a film material from the pressing device.