JPH0458086B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an inspection device for recording media such as floppy recording media (hereinafter abbreviated as floppy media), and in particular, the present invention relates to an inspection device for recording media such as floppy recording media (hereinafter abbreviated as floppy media), and in particular, an inspection device for inspecting recording media such as floppy recording media (hereinafter abbreviated as floppy media). 1 recording medium is supplied from the pallet.
The present invention relates to a recording medium inspection device that takes out and inspects recording media one by one. More specifically, the present invention relates to an improvement in a mechanism for holding and fixing a supplied pallet in a predetermined position in such a recording medium inspection apparatus.

[Prior art]

Conventionally, floppy recording medium inspection devices for 51/4-inch mini floppies and 8-inch standard floppies inspect floppy media supplied in a partially open jacket. Generally, the products are sent to a conveyance path, and along the way, the conveyance path is switched to separate acceptable products from rejected products, and then the products are placed in the corresponding stacker. The rejected floppy media is then removed from the jacket and discarded, and the jacket is reused (therefore, the jacket is not completely sealed, but is left partially open).

[Problem that the invention seeks to solve]

On the other hand, with the advancement of office automation, the demand for small floppy media of 3.5 inches or less called mini floppy and micro floppy is rapidly increasing. Media such as mini-floppies are often housed in plastic cases instead of conventional jackets, and in this case, it is preferable in terms of the manufacturing process to completely seal the case at the stage of storing it in the case. Therefore, if such small floppy media are inspected while housed in a case as in the past, rejected products will have to be discarded in their entirety, including the case. This cannot be ignored in the case of mini-floppy media.

Furthermore, in conventional equipment that inspects the floppy medium housed in a jacket, reading/writing to the floppy medium for inspection must be done through the access window of the jacket, and multiple heads are used to read/write the floppy medium. It is not easy to adopt a method of shortening inspection time by reading/writing at high speed. Therefore, in recent years, inspection of small floppy media such as microfloppies has become difficult for conventional inspection apparatuses to handle in terms of processing speed.

For this reason, it is considered desirable to test small floppy media such as microfloppies in a naked state without being housed in a jacket or case. However, conventional devices are practically incapable of handling bare floppy media.

[Purpose of the invention]

The present invention has been made in view of the above points, and its general purpose is to provide an improved recording medium inspection device that can handle recording media such as floppy media in a bare state.

Since the recording medium is handled in a bare state, in order to prevent damage to the recording medium, in the present invention, the recording medium is supplied in a stacked manner in a pallet (container). In order to reliably take out the recording medium from this pallet, the pallet must be securely held and fixed in a predetermined position.

Therefore, the main object of the present invention is to provide a recording medium inspection apparatus having the basic configuration as described above.
The object of the present invention is to simplify a mechanism for holding and fixing a pallet in which recording media are stacked and stored in a predetermined position, and to ensure its operation.

[Means to solve problems]

According to this invention, a recording medium inspection device that takes out and inspects media stacked on a pallet one by one includes a pallet support member that is movable up and down, a means for moving the pallet support member up and down, and a pallet support member that is movable up and down. A cam mechanism is provided which includes a movable member that is mechanically associated with the support member and moves as the pallet support member moves up and down, and the cam mechanism is provided with a cam mechanism that is mechanically associated with the support member and includes a movable member that moves as the pallet support member moves up and down. A pallet is fed, and from that position the pallet support member is raised to a recording medium removal position, and the pallet on the pallet support member is clamped thereon by the movable member of the cam mechanism.

[Effect]

By simply moving the pallet support member up and down, the pallet is crimped and held in place by a cam mechanism interlocked therewith. Therefore,
As the driving means, only a means for raising and lowering the pallet support member suffices, and the mechanism is simple, and the lifting of the pallet support member and the clamping operation are reliably linked, making the operation of the mechanism stable and reliable.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing an example of a floppy recording medium inspection apparatus according to the present invention.

The handling unit 1 stacks (for example, about 200 sheets) a pallet (referred to as a supply pallet) 2 supplied to a predetermined supply position of the supply section A.
The floppy media 3 are picked up one by one and sent to the floppy inspection unit (inspection section) 5.
At the same time, the floppy medium 3 that has been inspected is transferred from the floppy inspection unit 5 to a specific storage position in the storage section C, and the pallet set there (referred to as a storage pallet) is
The inspected floppy medium is stored in the storage pallet 6a set in the storage position.

Here, storage pallets 6a, 6b, 6c, 6d
is placed on the stacker table 9, and by controlling the rotation of the stacker table 9 by a predetermined amount (an integral multiple of 90 degrees), a desired storage pallet is set at the storage position. . These storage pallets 6a, 6b, 6c, and 6d are transferred from the empty supply pallet 2 from the supply section and set on the stacker table 9. 4 storage pallets 6
A, 6b, 6c, and 6d are respectively assigned to store floppy media that pass, top side fails, bottom side fails, and both sides fail.

Note that the means for conveying the supply pallet to the supply section A and setting it in a predetermined position, and the means for transferring the empty pallet from the supply section A to the storage section C or discharging it to the outside are omitted in the figure. They will be shown and explained separately.

In addition, supply pallets 2 (storage pallets 6a, 6
b, 6c, and 6d), as shown in FIGS. 2a and 2b, the floppy media 3 are stacked and stored with the separator 4 on top. The inner diameter of the opening 4a of the separator 4 is larger than the inner diameter of the opening 3a of the floppy medium 3. Note that the floppy medium 3 referred to here is a naked floppy disk itself before being housed in a jacket or case.

One separator 4 and one floppy medium 3 are each attracted and held under negative pressure at the tip of a cylindrical suction head 10 inserted into the handling unit 1 with the separator 4 facing upward. Further, as will be described later, the negative pressure adsorption is released by separating the tip of the adsorption head, and the floppy medium 3 is removed.

Handling unit 1 is arm unit 7.
and a transfer control mechanism 8. The arm unit 7 has first, second, and third arms 7a, 7b, and 7c that respectively support three suction heads 10 at 120 degree intervals in a loosely fitted manner. On the other hand, the transfer control mechanism 8 is a mechanism that moves the arm unit 7 up and down and controls its rotation at a rotation angle of 120 degrees at a predetermined timing.

The floppy inspection unit 5 is a so-called floppy disk drive device, and a spindle 5a of a drive motor is disposed above it. The floppy medium 3 is set on this spindle 5a and tested for predetermined electrical characteristics. For this purpose, a total of six magnetic heads, for example, three on each side of the floppy medium, are arranged at intervals of, for example, 120 degrees. Each magnetic head on each side is controlled to simultaneously read, write, or erase radially different areas of the floppy medium. This arrangement of magnetic heads is suitable for bare floppy media.
It is possible. Note that illustrations and explanations of mechanisms related to the magnetic head will be omitted.

Here, FIG. 3a is an overall sectional view of the suction head 10. Here, the supply pallet 2 when the arm unit 7 has descended to the lowest position is shown.
Alternatively, the state of the suction heads 10 located on the storage pallets 6a, 6b, 6c, and 6d is shown. As seen in this figure, the suction head 10 has a generally triple cylindrical structure, and the outermost cylinder is a head portion 10a for suctioning the separator 4, and a suction port is opened at its tip surface. The cylinder on the inside is a head part 10b for suctioning the floppy medium 3, and is fitted into the outermost cylinder so as to be able to move up and down, and similarly has a suction port opened at its tip surface. . This head portion 10b consists of two blocks: a tip portion F and a rear body R. The air passage leading to the suction port passes through the boundary between the tip F and the rear body R, and is opened when they are separated. Inside the head portion 10b is a collector 1 for positioning the floppy medium 3 with respect to the spindle 5a.
0c is stored. The collet 10c is rotatably supported via a bearing at the tip of a shaft 10d located at the center of the head 10. The side surface of the collet 10c is tapered. The shaft 10d is coupled to the rear body R via a built-in spring. The tip F is rotatable together with the collet 10c, and a spring is interposed between them. The window 16 is an opening into which a movable claw 17 (see FIG. 3c) provided on the arm fits.
A pin 10e protrudes from the rear end (upper end in the figure) of the head 10a, and a pin 10f similarly protrudes from the rear end of the head 10a.

When the arm unit 7 is lowered to the lowest position, the suction head 10 located at the supply pallet
The tip of the separator 4 in the supply pallet 2
Then, it descends under its own weight to a position where it contacts the floppy medium 3, and comes to rest in the state shown in FIG. 3a. The suction head 10 located on the supply pallet also lowers to a similar state and comes to rest. In this state, the height positions at which the supply pallet and storage pallet are set are determined so that the pin 10f is located above the arm and the pin 10e is still located above the rear end of the head portion 10a. ing. Further, in such a state, the pin 10g provided on the shaft 10d does not engage with the claw 17.

FIG. 3b shows the suction head 10 and the separator 4.
FIG. 2 is a schematic cross-sectional view showing a state in which a floppy medium 3 and a floppy medium 3 are attracted and transferred. Head part 1
0a is held at a predetermined height position by a pin 10f provided thereon that engages with the upper surface of the arm. On the other hand, the inner head portion 10b has a height such that the pin 10e provided thereon engages with the rear end portion of the outer head portion 10a, and its tip is located a predetermined distance below the tip of the outer head portion 10a. Thus, the floppy medium 3 is held a predetermined distance below the separator 4, as shown.

The floppy medium 3 held by the suction head 10 is dropped onto the spindle 5a, and the spindle 5
The operation of holding a will be explained. Arm 7a, 7
When b and 7c descend, the stopper 14, which is provided only near the floppy test unit 5,
Head portion 10a of suction head 10 that has reached that position
The more extended bar 15 engages, and the rear bodies R of the head portions 10a and 10b no longer descend (see FIG. 4a). The arms further descend and the arms 7a, 7b, 7 reach the window 16.
When c comes down, its claw 17 engages with the pin of the shaft 10d through the window 16, as shown in FIG. 3c.

Reference is made to FIG. 4 below. When the arm further descends, the shaft 10d moves against the claw 17 against the force of the built-in spring.
The head part 1 is pushed down by the
The tip F of 0b and the collet 10c descend. The tip F is separated from the rear main body R, and the suction port of the tip F becomes atmospheric pressure because its air passage is opened, and the floppy medium 3 adsorbed at the tip naturally falls onto the spindle 5a. (See Figure 4b). As the arm further descends, the collet 10c further protrudes as shown in FIG. Aligned to the center. As the arm further descends, the collet 10c moves into the recess 5b of the spindle 5a, as shown in FIG. 4d.
The tip F that has been inserted into the
The tip of and around the recess 5b of the spindle 5a,
The floppy medium 3 is held at a narrow pressure. In this state, the tip F and the floppy medium 3 rotate following the spindle 5a.

Although the gap between the tip F and the rear body R is exaggerated in FIG. 4, the gap is actually extremely small, for example, about 2 mm.

In addition, the supply pallet 2 and the storage pallets 4a, 4
b, 4c, and 4d are located at almost the same height, and the spindle 5 is located at a predetermined amount higher than that position.
a is placed. Supply section A and storage section C include
Nothing equivalent to the stopper 14 is provided. Therefore, at that position, head 1
0 is not prevented from descending, it descends together with the arm and is not acted upon by the pawl 17, thus resulting in the state shown in FIG. 3a.

Note that 11 in FIG. 1 is a control unit that controls each mechanism of the inspection apparatus, and 12 is a read/write control circuit section of a read/write head (not shown) in the inspection unit.

Next, the overall operation of this floppy recording medium inspection apparatus will be explained. However, the explanation of the handling part of pallets is excluded here.

Now, the arm unit 7 is in a raised position at an angle as shown in FIG. 1, and the floppy medium 3 and separator 4 to be inspected are placed on the suction head 10 supported by the arm 7b as shown in FIG. 3b. It is assumed that the floppy medium 3 and the separator 4, which have also been inspected, are held by suction on the suction head 10 which is held in the state shown and supported by the arm 7c.

When the arm unit 7 is lowered by the transfer control mechanism 8, the suction heads 10 of the arms 7a and 7c are not prevented from descending because there is no stopper 14, and are lowered until they reach the state shown in FIG. 3a and come to rest. (It should be noted that the suction head is loosely supported on the arm).

On the other hand, the suction head 10 supported by the arm 7b
When the bar 15 descends to a certain height, the bar 15 engages the stopper 14, and the head portion 10a and the head portion 1
The rear main body R of 0b can no longer be lowered. As the arm descends further, the pawl 17 engages the pin 1 of the shaft 10d, as explained in connection with FIG. 3c.
0g and the shaft 10d is pushed down, the floppy medium 3 falls from the suction head 10 onto the spindle 5a by the operation described in connection with FIG. is set to Thereafter, the floppy medium 3 is read, written, and erased at high speed by a total of six magnetic heads, and predetermined electrical characteristics are tested.

When this inspection is completed, the head portions 10a and 10b of the adsorption head 10 of the arm 7c are switched from negative pressure to atmospheric pressure at a timing corresponding to the completion signal, and the separator 4 and floppy medium (inspected ) 3 are both removed and the storage pallet is set in the storage position (6a in the figure)
are stored in layers. Note that the rotation of the stacker table 9 is controlled in advance so that the storage pallet corresponding to the test result of the floppy medium is set at the storage position.

Further, when the test in the floppy test unit 5 is completed, the transfer control mechanism 8 operates in response to the completion signal to raise the arm unit 7 which is in the lowered state. As for the head 10 supported by the arm 7b, the push-down of the shaft 10d by the claw 17 is released, and as the arm rises, the shaft 10d is pulled up by the action of the built-in spring.
The collet 10c is detached from the spindle 5a.
Further, the tip F is pulled up by the action of the built-in spring between it and the collector 10c and is recombined with the rear main body R, and the suction port of the tip F becomes negative pressure again, so that the floppy medium 3 on the spindle 5a is removed from the head. Part 1
It is adsorbed and held at 0b. When the arm 7b further rises and the pin 10f of the suction head engages with its upper surface, the suction head thereafter rises together with the arm, finally reaching the state shown in FIG. 3b.

The suction head 10 supported by the arm 7a maintains the state shown in FIG. 3a until its pin 10f engages with the arm, but when the arm reaches the position where it engages with the pin 10f. After that, the suction head moves up with the arm while holding the separator 4 and floppy medium 3 by suction, and finally reaches the third suction head.
The state will be as shown in Figure b.

After arm unit 7 rises to the highest position,
The transfer control mechanism 8 rotates the arm unit 7 by 120 degrees in a predetermined direction (direction of arrow G in FIG. 7
c respectively move to the supply position. During this rotation period, the control unit 11 controls the rotation of the stacker table 19 in accordance with the inspection results, and the storage pallet corresponding to the inspection result is set at the storage position.

Thereafter, the arm unit 7 descends and the same operation begins again.

In this way, this floppy recording medium inspection apparatus performs the picking up, inspection, sorting and storage of floppy media in parallel, and can continuously and efficiently execute the floppy medium inspection process. Since the floppy media is in a bare state, if the media uses a plastic case or jacket, such as a microfloppy, only the media needs to be discarded if the product fails, and the case or jacket will not be wasted. , economical. Furthermore, since the floppy medium is handled in a bare state, the floppy inspection unit is equipped with multiple heads as described above, and each head is assigned to a different area in the radial direction of the medium and can read/write and even erase at the same time. It is also easy to conduct the test and shorten the inspection time. In combination with continuous processing, this can greatly speed up inspection processing. Furthermore, since the sorting of accepted floppy media and rejected floppy media is done by selecting a storage pallet, the space required for sorting is saved compared to the conventional sorting by switching conveyance paths. This can be easily reduced and the device can be made smaller by that amount.

Note that if a separator is interposed between the floppy media, the floppy media will be less likely to be damaged.
Although the separability of the floppy medium during pick-up is also improved, it may be possible to omit the separator.

Next, the parts related to carrying in, transferring, setting on the stacker tape 9, discharging from the stacker table 9, etc. of the pallets will be explained in Figures 5 to 15.
This will be explained with reference to the figures.

Fig. 5 is a perspective view showing an outline of a pallet supply and transfer device for carrying in supply pallets, transferring, discharging, and carrying in empty pallets, and Fig. 6 shows an expanded view of the belt conveyance mechanism of the device. It is a schematic perspective view. FIG. 7 is a schematic perspective view showing an enlarged part of the device. In both figures, some parts are omitted or simplified.

In each figure, 50 indicates the supply pallet to the supply section A.
52, 53, 54
is a conveyor belt for discharging empty pallets to the outside or transferring them to the supply section C. a pulley shaft 60 on which the conveyor belts 50, 52 are hung;
Bevel gears 64 and 65 are fixed to 62, and these bevel gears 64 and 66 mesh with bevel gears 59 and 61, which are attached to the rotating shaft 57 of the motor 56 in opposite directions, respectively. Therefore, the conveyor belt 5
0 and 52 are rotated in opposite directions.
The conveyor belts 53 and 54 are rotationally driven by a motor (not shown) via a belt transmission mechanism, but the details are omitted in the figure. The conveyor belt 53 is arranged between the pair of conveyor belts 52,
It can be moved up and down by a solenoid 70. Pallet latches 72, 73, 74, and 75 are provided at predetermined positions along the path along which the pallets are conveyed by the conveyor belts 50, 52, 53, and 54. Palette latch 72 is solenoid 80
The palette latch 76 is operated by a solenoid 81, the palette latches 73 and 74 are operated by a solenoid 82, and the palette latch 75 is operated by a solenoid 83. Reference numeral 86 designates a pallet gate for controlling the discharge or supply of empty pallets, and is screwed into a threaded rod 89 which is rotationally driven by a motor 88 via a belt transmission mechanism 87.

90 (see FIG. 7) is a palette hopper.
The slider block 92 has a pair of shafts 9
It is supported so as to be movable up and down along 3. The slider block 92 is threadedly engaged with a threaded rod 94, and when the threaded rod 94 is rotated by a motor 96 via a belt transmission mechanism 95, the slider block 92 is raised or lowered. Slider block 9
2 has a pair of side plates 100 extending toward the conveyor belts 50 and 52 side. Shafts 101 and 10 rotatably supported on this side plate 100
A pair of conveyor belts 10 are attached to pulleys fixed to
It is multiplied by 3. Gear 1 is attached to one end of the shaft 101.
A friction roller 106 (for example, a rubber roller) is rotatably attached to one side plate 100, and has teeth that mesh with the friction roller 106 (for example, a rubber roller).
Rollers 108 and 109, which have knurling or the like formed on their circumferential surfaces to increase the friction coefficient of their circumferential surfaces, are fixed to one ends of the drive shafts 60 and 62 of the conveying rollers 50 and 52, respectively. Further, in the supply section A, a bullet stopper 11 is provided at a position as shown in FIG.
0 is horizontally rotatable and is operated by a solenoid 110.

The operation of the pallet supply and transfer device having the configuration shown above is as follows.

Normally, the motor 56 rotates in the normal direction, and the conveyor belts 50 and 52 are rotated in the directions of arrows 112 and 113. Pallets (separators and floppy media are alternately stacked) supplied to the entrance of the conveyor belt 50 by a belt conveyor or the like are conveyed to the pallet hopper 90 side by the conveyor belt 50 and engaged with the pallet latch 72. Stop at a position.

When setting a supply pallet on the pallet hopper 90, the conveyor belt 103 is raised to the same height as the conveyor belt 50 by controlling the rotation of the motor 96. In this state, since the friction roller 106 is in frictional contact with the roller 108,
The conveyor belt 103 is rotated in the direction of arrow 114 (FIG. 7).

In this state, the pallet latch 73 is operated to the release side, and the pallet stopper 110 is rotated to the outside of the pallet transfer path. Then, the pallet on the conveyor belt 50 is sent onto the conveyor belt 103 and conveyed in the direction of the arrow 114. At this time, the lateral position and orientation of the pallet (supply pallet) is corrected by a guide 120 (see FIG. 9) provided inside the side plate 100, and the tip end is fixed to a stopper 122 (see FIG. 8). (see Fig. 9). At this point, pallet stopper 110 is moved back into the pallet transport path. The pallet latch 72 is also returned to the latched position.

Next, the motor 96 is operated to raise the pallet hopper 90 to a predetermined height. below,
Please refer to FIGS. 8 and 9. As shown in FIG. 8, the pallet hopper 90 is provided with a rotatable clamp claw 124 and an abutment 125 that together constitute a kind of cam mechanism. The clamp claw 124 moves up and down together with the pallet hopper 90, and is rotatably supported by a shaft 127 supported by the side plate 100. The abutment 125 is fixed at a predetermined height position.
128 is a return spring, which acts to rotate the clamp claw 124 counterclockwise in FIG. 8.

Now, when the pallet hopper 90 rises to a certain height, the clamp claw 124 as a cam follower engages with the abutment 125 and rotates clockwise against the force of the return spring 128, as shown in FIG. Then, the claw portion of the clamp claw 124 enters into a circular hole 130 provided on the bottom surface of the supply pallet 2. When the pallet hopper 90 rises to a predetermined height, the clamp claw 124 further rotates, and the engagement between the claw portion and the inner surface of the hole 130 forces the supply pallet 2 against the stopper 122 and positions and fixes it at the supply position.

In this way, since the lifting force of the pallet hopper 90 is used to operate the cam mechanism for pallet clamping, there is no need to provide a separate power source for pallet clamping, and the mechanism is simple, compact, and inexpensive. become. Furthermore, the lifting of the pallet hopper and the clamping and releasing of the pallets are perfectly synchronized and reliable in operation. In addition, hole 130
Since it is circular, the orientation of the supply pallet 2 is reliably corrected at the same time as the clamping. However, hole 1
The shape of 30 is not limited to a circular shape, but the same effect can be obtained if at least the portion that engages with the clamp claw 124 is arcuate.

When the supply pallet 2 is empty, the motor 96 is activated to lower the pallet hopper 90. Since the clamp claw 124 is separated from the abutment 125, it is rotated counterclockwise by the action of the return spring 124, and the claw portion at the tip escapes from the hole 130. The pallet hopper 90 descends to a position where the friction roller 106 contacts the roller 109 of the conveyor belt 52, and
Stop. As a result, the conveyor belt 103 is
14 (FIG. 7), and transfers the empty supply pallet (empty pallet) onto the conveyor belt 52. This empty palette is located in palette 7
4 and stops. If an empty pallet already exists on the conveyor belt 52,
The new empty pallet stops until it engages the empty pallet. In other words, two
It is possible to store three (or more) empty pallets (buffling of empty pallets is possible).

If the maximum number of empty pallets that can be accumulated on the conveyor belt 52 already exists and even one of them cannot be transferred to the conveyor belt 54 side, the pallet latch 74 is operated to the release side and one or more empty pallets are Empty pallets are discharged from the conveyor belt 52 to an external belt conveyor or the like, and a space is created on the conveyor belt 52 to accommodate the empty pallets carried out from the pallet hopper 90. At this time, the pallet gate 86 is moved by the motor 88 to a position where the empty pallet can be discharged.

In this way, when an empty pallet is carried out from the pallet hopper 90, the motor 96 is activated.
Pallet hopper 90 is raised to the height shown in FIG. 7, and a new supply pallet is supplied to pallet hopper 90 in the manner described above. Then, as described above, the pallet hopper 90 is further raised and the supplied pallet is clamped. Note that two (or three or more) supply pallets can also be stored on the conveyor belt 50. In other words, it has become possible to buffer supply pallets.

Now, when a space for accommodating an empty pallet is created on the conveyor belt 54, the solenoid 70 is activated to push the conveyor belt 53 up to approximately the same height as the conveyor belt 52. As a result, the empty pallet stopped at the pallet latch 74 is fed to the conveyor belt 54 by the conveyor belt 53,
The pallet is conveyed by the conveyor belt 54 to a position where it engages with the pallet latch 75, or if an empty pallet is already present on the conveyor belt 54, it is conveyed to a position where it engages with the empty pallet and is stopped there. Note that the number of conveyor belts 54 is also two (or three or more).
You can buffer empty palettes.

The flow of the pallets explained above is schematically shown in FIG. In this figure, 2a is a pallet containing floppy media, and 2b is an empty pallet.

Note that when it becomes necessary to supply empty pallets from the outside, such as when the total number of empty pallets on the conveyor belts 52 and 54 falls below a predetermined number, the motor 88 operates to move the pallet gate 86 forward and backward.
The pallet gate 86 allows empty pallets to be supplied onto the conveyor belt 52 from a belt conveyor (not shown) or the like. At this time, the motor 56 is rotated in the reverse direction and the conveyor belt 52 is rotated in the normal direction, so that the empty pallet supplied from the outside is conveyed to a position where it is latched by the pallet latch 73.
This empty pallet either remains in that position or is transferred by the conveyor belt 53 to the conveyor belt 54 side. Of course, it is also possible for the operator to directly supply empty pallets.

Although not shown in the figure, the conveyor belts 50, 5
Sensors for detecting pallets are arranged along the pallets 2, 53, and 54, and the control unit 11 controls the above-described pallet supply, transfer, discharge, replenishment, etc. based on the detection signal of the sensor.

Now, when one of the storage pallets in storage section C becomes full and a new storage pallet is required, the pallet latch 75 is released and one empty pallet on the conveyor belt 54 is moved to the top of the pallet elevator 140 in storage section C ( (see FIG. 11) and used as a storage pallet as described later.

As explained above, since the empty supply pallet is transferred to the storage section C as a storage pallet, the pallet can be used effectively, and there is almost no need to replenish the storage pallet from the outside, improving work efficiency. It also makes it easier to automate it. especially,
As in this embodiment, when empty pallets are buffered, the frequency of externally replenishing storage pallets becomes extremely low, work efficiency is greatly improved, and automation of pallet supply becomes extremely easy. In addition, due to variations in the number of floppy media in the supply pallet, bias in inspection results, etc., the frequency at which empty pallets occur and the frequency at which new storage pallets are required may differ considerably over a short period of time. If empty pallets are not buffered, there may be a shortage or excess of empty pallets to be used as storage pallets, and empty pallets must be supplied or discharged from outside frequently and irregularly. If done manually, the workability will be poor, and if automated, the control etc. will be complicated.

Note that even if such empty pallet buffering is performed, there may be a rare case where there is a shortage or surplus of empty pallets. To deal with this case, as described above, empty pallets can be discharged or supplied midway along the empty pallet conveyance path.

Next, the storage section C will be explained in detail with reference to FIGS. 11 to 15. It should be noted that some of the figures have been simplified or omitted, and the positional relationships, sizes, etc. have been exaggerated or changed.

142 is a motor for rotationally driving the stacker table 9 (see FIG. 11). The rotation of this motor 142 is transmitted to a reduction gear 146 via a belt transmission mechanism 144, and further to a gear 150 fixed to a shaft 148 of the stacker table 9. This stacker table 9 has a first
As shown most clearly in Figure 3, four cutouts 152 for setting storage pallets are provided.
They are formed at 90 degree intervals. Each notch 152 is
The dimensions are slightly larger than the lower part of the pallet. Clamp rollers 154 as shown in FIG. 14 are attached facing both sides of the notch 152. This clamp roller 154 is for holding the storage pallet in the notch 152, and is supported by the stacker table 9 so as to be rotatable and to be able to swing in and out as a whole. Clamp roller 1
A biasing spring 156 is attached to 54 to bias it inward.

The pallet elevator 140 is provided at a predetermined position below the stacker table 9. This pallet elevator 140 can be moved up and down by rotating a threaded rod 160 screwed thereon by a motor 164 via a belt transmission mechanism 162.

A discharge pallet receiving section 170 is provided directly above the pallet elevator 140 via the stacker table 9. Here, as shown in FIG. 14, a pair of clamp claws 172 are provided facing each other. Each clamp claw 172 is rotatably supported and urged inward by a push spring 174. Adjacent to the discharge pallet receiving section 170, there is provided a conveyance belt for conveying the discharge pallet to the outside in the direction of an arrow 177, but it is omitted from the drawing. 176 (see FIG. 11) is a slider that pushes out the pallet clamped by the pair of clamp claws 172 toward the delivery belt, and is screwed onto a threaded rod 178. By rotating this threaded rod 176 with a motor 182 via a belt transmission mechanism 180, the slider 176
can be moved forward and backward as shown by arrow 142.

Note that the support stand 20 of the discharge pallet receiving section 170
is a threaded rod 20 driven by a motor 201
It is screwed into 2. Therefore, by rotating the motor 201, the discharge pallet receiving portion 17
0 height can be adjusted.

The palette is shown enlarged in FIG. As seen in this figure, the pallet consists of a generally square bottom portion 190 and a cylindrical portion 192 having an inner diameter approximately equal to the outer diameter of the floppy medium. A notch 194 is formed in the cylindrical portion 190 to reach the bottom portion 190 in order to facilitate the insertion and removal of the floppy medium. The bottom part 190 has the circular hole 1
30 and a small diameter circular hole 196 are formed.
Furthermore, a groove 1 having a shape substantially the same as the cross-sectional shape of the non-notched portion of the cylindrical portion 192 is provided at a position corresponding to the non-notched portion.
98 is formed. Note that the inner side of the upper end portion of the cylindrical portion 192 is shaved off obliquely, so that the thickness is thinner than the other portions.

Next, the operation of handling pallets in the storage section C, particularly the ejection and replacement of storage pallets, will be explained.

When a predetermined number of floppy media (and separators) are stored in a storage pallet set in a certain notch 152, the motor 142 is driven and controlled by the control unit 11, and the storage pallet (referred to as a discharge pallet) is The stacker table 9 is rotated so that it is directly above the pallet elevator 140. The number of floppy media in each storage pallet is managed by the control unit 11. Further, such rotation control of the stacker table 9 is performed while the arm unit 7 is being raised.

Next, the motor 162 is rotated in the forward direction, and the pallet elevator 140 is raised. When the pallet rises to a certain height, the upper end of the empty pallet (2d in FIG. 14) set on the pallet elevator 140 fits into the groove 198 in the bottom of the discharge pallet set on the stacker table 9. When the pallet elevator 140 further rises, the discharged pallet is pushed up by the empty pallet 2d. As the pallet elevator 140 further rises, the discharge pallet rises while spreading the clamp claws 172 at its bottom, and is finally clamped by the clamp claws 172 and held in the discharge position as shown in the upper part of FIG. . Similarly, empty palette 2d
rises while spreading the clamp roller 154 at its bottom, and is finally clamped by the clamp roller 154, as shown in the middle part of FIG. Thereafter, this empty pallet 2d will be used as one of the storage pallets. Thereafter, the motor 164 is reversely rotated, and the pallet elevator 140 is
It descends to approximately the same height as the conveyor belt 54. The above operations are controlled by the control unit 11.

When the discharge pallet is set in the discharge pallet receiver 170, the motor 182 is rotated in the forward direction.
As a result, the slider 176 moves in the direction of arrow 177, and the discharge pallet is transferred to a conveyor belt (not shown).
push it out. The delivery belt transports the discharged pallet to the outside, for example, to a belt conveyor (not shown). Of course, it is also possible for a worker to take out the discharge pallet. Thereafter, the motor 182 is reversely rotated and the slider 176 returns to the position shown in FIG. 11 again. Such operations are controlled by the control unit 11. Note that the delivery belt may also be configured to buffer two (or three or more) discharge pallets.

As described above, the empty pallet is used to push up the discharge pallet, and the discharge pallet is set in the discharge pallet receiver, and at the same time, the empty pallet is set on the stacker table as a storage pallet, so the related mechanism is simple and compact. , and its control is also simplified.

Furthermore, since a groove 198 into which the upper end of another pallet fits is formed in the bottom of the pallet, when pushing up the discharged pallet with an empty pallet, the discharged pallet may move laterally or fall. Therefore, the discharge pallet can be reliably set in the discharge pallet receiving part.

In the embodiment described above, the separator and the floppy medium are held and transferred by suction heads arranged at 120 degree intervals, but such a mechanism is not limited to the above-mentioned one. Also,
Retention of floppy media is not limited to adsorption. Furthermore, it is also possible to configure the apparatus to handle only floppy media without using a separator. In short, the apparatus may be configured to take out floppy media one by one from a supply pallet and transport them to the inspection stage, and then transport the floppy media that have been inspected to a storage pallet and store them therein.

Furthermore, the configuration of the pallet supply and transfer device is not limited to that described above. For example, although a conveyor belt is used as the pallet conveying means, it is also possible to use roller conveying means or the like. Alternatively, the pallet transport path may be a simple inclined path, and the pallet may be transported by its own weight. Furthermore, it is also possible to provide a member that can be moved along the pallet transport path, with the pallet being clamped or engaged by suitable means, and the pallet being transported together with the member. Furthermore, it is also possible to move empty pallets along the conveyance path using air pressure.
The cam mechanism for clamping the supply pallet may also be modified as long as it achieves its purpose. Furthermore, the structure of the pallet hopper may be, for example, a simple table without a conveyor belt, on which the supplied pallets are set by appropriate external means. However, the configuration in the above embodiment uses the power of the pallet transfer belt mechanism and the pallet carry-in belt mechanism to drive and change the direction of the conveyor belt on the pallet hopper, and can be said to be an effective design. .

Furthermore, the mechanism for discharging the discharged pallet and setting an empty pallet in its place is not limited to the one described above. For example, the means for clamping the discharged pallet and the empty pallet may be a pair of plate-shaped spring members, a pair of plate-shaped members biased inwardly by a spring,
It may be changed to a spherical or pin-shaped member as appropriate. Furthermore, the means for pushing up empty pallets can be changed as appropriate, such as pushing up empty pallets using a lever-like movable member. It is also possible to use a suitable means provided on or near the stacker table to push out the discharged pallet horizontally, or to set empty pallets on the stacker table horizontally or from above. It is also possible to discharge the discharge pallet by appropriately moving the stacker table itself. This may be possible, for example, if each storage pallet is supported by independent means.

Furthermore, the pallet structure is not limited to that described above.

Furthermore, it is also possible to realize an apparatus in which floppy media housed in a jacket or case are stacked and stored in a pallet, and the floppy media are taken out one by one for processing, and the present invention is also applicable to such an apparatus. It is.

Furthermore, it goes without saying that the present invention can be similarly applied to devices that process recording media other than floppy media.

〔Effect of the invention〕

According to this invention, by simply moving the pallet support member up and down, the pallet is clamped and held in a predetermined position by the cam mechanism that is interlocked with the movement. The mechanism becomes simple, and the lifting and clamping operation of the pallet support member is reliably linked, making the operation of the mechanism stable and reliable.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing a simplified overall configuration of a floppy recording medium inspection apparatus according to the present invention, and FIGS. 2a and 2b show the positional relationship between the floppy medium and the separator in the pallet, etc. A side view and a schematic perspective view, FIGS. 3a to 3c are schematic cross-sectional views showing the structure and operation of the suction head, and FIGS. 4a to 4d are views showing the floppy medium when it is set on the spindle of the inspection unit. A state transition diagram for explaining the operation of the suction head, FIG. 5 is a schematic perspective view of the pallet supply and transfer device, FIG. 6 is a schematic perspective view showing the belt conveyance mechanism of the pallet supply and transfer device developed, and FIG. 7 8 is a schematic perspective view showing an enlarged part of the pallet supply transfer device, FIG. 8 is a schematic sectional view showing the clamping mechanism of the supply pallet, and FIG. 9 is a schematic plan view showing the state in which the supply pallet is clamped to the supply position. Fig. 10 is a schematic diagram showing the flow of pallets in the pallet supply and transfer device, Fig. 11 is a schematic perspective view showing the overall structure of the storage section, and Fig. 12 explains the discharge pallet receiving section of the storage section. FIG. 13 is a schematic perspective view showing the structure of the stacker table. FIG. 14 is a diagram for explaining the discharge and exchange of storage pallets. FIGS. They are a perspective view, a partially sectional front view, and a plan view. DESCRIPTION OF SYMBOLS 1... Handling unit, 2... Supply pallet, 3... Floppy medium, 4... Separator, 5... Floppy inspection unit, 5a... Spindle, 6a-6d... Storage pallet, 7...
Arm unit, 7a to 7c... Arm, 8...
Transfer control mechanism, 9... Stacker table, 10...
...Adsorption head, 10a...Head part, 10b...
Head portion, F... Tip portion of head portion 10b, R...
...Rear body of head section 10b, 10c...Collection, 10d...Shaft, 11...Control unit, 12...Read/write control circuit, 14...Stopper, 15...Bar, 17...Claw, A ... Supply section, C ... Storage section, 50, 52, 53, 54, 1
03... Conveyor belt, 56, 96, 88, 95,
142, 164...Motor, 72, 73, 74,
75, 76...Palette lock, 86...Palette gate, 90...Palette hopper, 110...
Pallet stopper, clamp claw, 124, 125
......Shougoko, 122...Stotsupa, 140...
Pallet elevator, 154...clamp roller, 172...clamp claw.

Claims (1)

[Claims] 1 A recording medium inspection device that takes out and inspects media stored in a stack on a pallet one by one, which comprises a pallet support member that is movable up and down, a means for moving the pallet support member up and down, and a pallet support member that is movable up and down. The cam mechanism includes a movable member that is mechanically associated with the pallet support member and moves as the pallet support member moves up and down. A recording medium inspection device characterized in that the pallet support member is raised from that position to a recording medium take-out position, and the pallet on the pallet support member is clamped thereon by a movable member of a cam mechanism.