JPH06144549A - Disc revering device - Google Patents

Abstract

PURPOSE:To provide a disc reversing device by which a plurality of discs being conveyed on a conveying means can be automatically turned upside down on alternate discs, in the manufacturing process of discs that are to be used for magnetic discs or the like. CONSTITUTION:A disc reversing device is provided with a conveying means on which a plurality of discs D are successively conveyed with one surface faced upward, a disc receiving part for retaining the disc D that has been conveyed by this conveying means, and rotating bodies 2a, 2b for turnably holding the disc receiving part. After a disc D has been held by the disc receiving part, the rotating bodies 2a, 2b are turned upwards and stopped, and then after the subsequent disc has been passed through, they are further turned so that the disc that has been held is placed on the conveying means with the other surface faced upwards.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk disk reversing device for alternately reversing the front and back of a plurality of disk disks punched by a press in the manufacturing process of disk disks used for magnetic disks and the like.

[0002]

2. Description of the Related Art Conventionally, in the manufacturing process of a disk disc, in order to obtain flatness of the disk surface of the disc disk punched by a press, a plurality of disk discs are stacked on a stacking pole and a load is applied from above. There is a step of performing furnace annealing by heat treatment in the furnace.

In this case, it has been confirmed experimentally and theoretically that the flatness is improved by stacking the discs on the stacking poles and heat-treating the discs so that the front and back surfaces of the discs are alternately turned upward.

[0004]

By the way, since a plurality of disk discs punched by a press are usually conveyed on a conveying means such as a belt conveyor with the front surface facing upward, the front surface and the back surface alternate. In order to stack the stacks on the stacking poles so that they face upward, it is necessary to invert the front and back of the discs every other disc.

Although this work has been performed manually until now, the productivity of the manual work is limited to about 20 sheets per minute, so that productivity cannot be improved, and the yield is increased due to external damage caused by the manual reversal operation. There was an inconvenience such as a decrease in

Therefore, an object of the present invention is to provide a disk disk reversing device which can automatically reverse every other disk disk transferred on the transfer means.

[0007]

DISCLOSURE OF THE INVENTION A disk disk reversing device according to the present invention holds a disk disk carried by a carrier means for sequentially carrying a plurality of disk disks with one surface facing upward. A disc receiving portion and a rotating body for rotatably holding the disc receiving portion,
This rotating body rotates upward after the disk disk is held by the disk receiving portion and stops, and further rotates after the next disk disk passes, and the disk disk that has been held is set with the other surface upward. It is configured to be placed on the transport means.

[0008]

In the structure of the present invention, when the first disc disk is conveyed on the conveying means and held by the disc receiving portion, the rotating body is activated to rotate and the disc disc is held by the disc receiving portion. It rises while rotating, and stops when it rotates about 90 degrees. As a result, the disc disk stands still while being held vertically above the transport means.

Next, when the next disc disk is conveyed on the conveying means and passes therethrough as it is, the rotator again starts to rotate, and the disc disk held in the disc receiving portion is placed on the conveying means. As a result, the disc disk held in the disc receiving portion is turned upside down and placed on the conveying means.

Thereafter, this operation is repeated, and eventually, the odd-numbered disk disks are reversed, the even-numbered disk disks pass through as they are, and a plurality of disk disks alternate in the front surface and the back surface for the next step. Will be sent in.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic block diagram showing an embodiment of a disk disc reversing device according to the present invention. The reversing device according to the present embodiment is installed at an intermediate position of a belt conveyor B stretched between a pressing device and a stacking device (not shown), and holds both sides of a disc disk D being conveyed. A pair of disc receiving portions 1a and 1b having a pair of holders Ha and Hb, and a pair of rotating bodies 2 rotatably holding the pair of disc receiving portions 1a and 1b.
a and 2b.

The rotating body 2a is a holder H of the disc receiving portion 1a.
a and the holder Ha of the disk receiving portion 1b are held at an angle of 180 degrees, and the rotating body 2b holds the holder Hb of the disk receiving portion 1a and the holder Hb of the disk receiving portion 1b at an angle of 180 degrees. is doing.

Further, this reversing device is provided with optical sensors at various places in order to detect the position of the disk disk D moving on the belt conveyor B and to control the reversing device by the control device 3. That is, the first optical sensor PH1 for detecting that the disc disk D has been conveyed on the belt conveyor B, and the holder H of the disc receiving portion 1a or 1b.
a second optical sensor PH2 that detects that a is in a position parallel to the belt conveyor B, a third optical sensor PH3 that detects the rotational position of the rotating body 2a for every 90 degrees, and a disk disk D.
Fourth optical sensor P for detecting that the vehicle has passed through the reversing device
It is H4. In addition, four rod-shaped protrusions Pa, Pb, Pc, and Pd are installed on the outer peripheral portion of the rotating body 2a every 90 degrees, and these protrusions Pa to Pd are the third optical sensor PH3.
The rotational position of the rotating body 2a is detected every 90 degrees by approaching to.

A detection signal detected by each of the photosensors PH1 to PH4 is transferred to the control device 3, and the control device 3 controls the rotation of the motor M based on the detection signal, and a plurality of disc disks D sequentially conveyed. Is reversed every other sheet and transferred to the stacking device in the next step.

Next, with reference to the flow chart shown in FIG. 2 and the operation explanatory diagrams shown in FIGS. 3 to 6, the operation of reversing the disk by the controller 3 will be described. First, the motor M is started to rotate the rotating bodies 2a and 2b clockwise in the figure (step S1). Next, the second optical sensor PH2 detects whether or not the holder Ha of the disk receiving portion 1a or 1b has come to a position parallel to the belt conveyor B (step S2), and when the holder Ha comes to a predetermined position, the motor Stop M (step S3). In this embodiment, as shown in FIG. 1, the holder Ha of the disc receiving portion 1a is detected by the optical sensor PH2, and the rod-shaped protrusion Pa of the rotating body 2a is stopped adjacent to the optical sensor PH3.

When the holder Ha is set to the initial position in this way, the system is started (step S4). Then, when the first optical sensor PH1 detects that the first disc disk D1 has been conveyed on the belt conveyor B (step S5), the timer in the control device 3 is activated (step S6), and preset. The counting of the predetermined time T is started (step S7). The predetermined time T is obtained by previously calculating the time required for the disc disk D1 to be stored in the holders Ha and Hb after passing the installation position of the optical sensor PH1 from the speed of the belt conveyor B.

When the predetermined time T has elapsed, the disc disk D1 is held by the holder H of the disc receiving portion 1a, as shown in FIG.
Since it is housed in a and Hb, the motor M is started (step S8), and the rotating bodies 2a and 2b are rotated clockwise in the drawing. Then, the disc disk D1 is attached to the disc receiving portion 1a.
While being held by the holders Ha and Hb of the above, it rises while rotating clockwise. When the rotating body 2a rotates 90 degrees and the optical sensor PH3 detects the next rod-shaped projection Pb (step S9), the motor M is stopped (step S1).
0). As a result, the disc disk D1 becomes stationary while being vertically held above the belt conveyor B, as shown in FIG.

Next, when the second disk disk D2 is conveyed on the belt conveyor B, as shown in FIG. 5, the disk disk D2 passes through the reversing device as it is, and the fourth optical sensor PH4 passes the disk disk D2. When detected (step S11), the motor M is started again (step S12),
The rotating bodies 2a and 2b are rotated clockwise in the figure.

When the rotator 2a rotates 90 degrees and the optical sensor PH3 detects the next rod-shaped protrusion Pc (step S13), the motor M is stopped (step S14). As a result, the disc disk D1 is lowered while rotating clockwise while being held by the holders Ha and Hb, and is placed on the belt conveyor B with its back surface facing upward, as shown in FIG. Sent to.

Next, as shown in FIG. 7, when the third disc disk D3 is conveyed on the belt conveyor B and stored in the holders Ha, Hb of the disc receiving portion 1b, the same processing as described above is performed. It is held vertically above the belt conveyor B, and after the fourth disk D4 passes, it is turned upside down and sent to the next step. This series of processing (steps S5 to S14) is continued until the system is stopped (step S15).

Thus, the odd-numbered disc disks D1,
D3, ... are reversed by the reversing device, and the even-numbered disk discs D2, D4 ,.
Eventually, the disc disk D2 (front surface), D1 (back surface), D4 (front surface), D3 (back surface), ...

[0022]

According to the present invention, since the front and back of the disc disk are automatically reversed, the number of processed sheets per unit time is greatly improved as compared with the manual work, and the productivity can be improved. Becomes Further, since the disk is mechanically processed, there is no unnecessary movement of the disk, and therefore, it is possible to prevent a decrease in product yield due to external damage or the like.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.

FIG. 2 is a flow chart for explaining the operation of the present invention.

FIG. 3 is a diagram showing a state in which a first disc disk is stored in a holder.

FIG. 4 is a view showing a state in which a first disc disk is vertically held by a holder.

FIG. 5 is a diagram showing a state in which a second disc disk has passed under a holder.

FIG. 6 is a view showing a state in which a first disc disk is turned upside down and placed on a belt conveyor.

FIG. 7 is a diagram showing a state in which a third disc disk is stored in a holder.

[Explanation of symbols]

 1a, 1b Disk receiving part 2a, 2b Rotating body 3 Control device B Belt conveyor D, D1, D2, D3, ... Disk disk Ha, Hb Holder M Motor Pa, Pb, Pc, Pd Rod-shaped projection part PH1, PH2, PH3 PH4 optical sensor

Claims (1)

[Claims] 1. A transport means for sequentially transporting a plurality of disc disks with one surface thereof facing upward, a disc receiving portion for holding the disc disks transported by the transport means, and the disc receiving portion are rotatable. And a rotating body which holds the rotating body, the rotating body is rotated upward after the disk disk is held by the disk receiving portion and stopped, and further rotated after the next disk disk is passed through and held by the rotating body. The disk disk reversing device, wherein the disk disk is placed on the transfer means with the other surface facing upward.