JPH06293321A - Disk detector - Google Patents

Abstract

PURPOSE:To provide a disk detector which can immediately detect whether a predetermined number of compact disks have been securely housed in a disk housing case after wrapping without unpacking the case while the case is being carried. CONSTITUTION:This is a detector for detecting whether compact disks are housed in a case after wrapping of the case of the compact disks is completed, comprising micro-switches 3, 4 for detecting that a case 7 passes through a tunnel 2 on a carrying path 1 of the case and capacitance varying type proximity switches 5, 6 for detecting whether compact disks exist in the case 7 when the micro-switches 3, 4 detect that the case 7 passes through the tunnel 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc detecting device, and more specifically, after the compact disc is housed and packed in a case, a final inspection is performed to check whether or not the compact disc is securely housed in the case without cutting the package. And a disk detection device capable of

[0002]

2. Description of the Related Art Compact discs are usually packed manually or automatically in a plastic case and then caramel or shrink-wrapped.

By the way, after packing the compact discs in this way, it is necessary to make a final check before shipment whether or not a predetermined number of compact discs are reliably stored in the case. It was not possible to perform a visual inspection from the outside.

Of course, in this case, it is desirable that the inspection can be performed without breaking the packaging, and conventionally, the quantity check or the weight check is used.

[0005]

However, according to the above quantity check method, if the number of cases and the number of disks do not match, all the cases already packed are unpacked and any case is defective. There is a drawback that it becomes a huge amount of work because it is not known if there is.

Further, the above-mentioned method of checking the weight has a drawback that the inspection takes time because the products continuously conveyed by the belt conveyor or the like have to be temporarily stopped at the time of the inspection.

The present invention has been made in view of the above-mentioned conventional drawbacks, and an object of the present invention is to determine whether or not a predetermined number of compact discs are reliably stored in a case after packaging while transporting them without cutting the packaging. Another object of the present invention is to provide a disk detection device that can be inspected.

[0008]

In order to achieve the above object, a disc detecting device of the present invention is a device for detecting whether or not a compact disc is housed in a case after the compact disc is packed in the case. Case presence / absence detection means for detecting that the case passes a predetermined position on the conveyance path of the case, and presence / absence of a disk in the case when the case presence / absence detection means detects the case passing the predetermined position And a disk presence / absence detecting means for performing the operation.

Further, the disk detecting device of the present invention is characterized in that the disk presence / absence detecting means is provided at a position facing the disk surface of the disk in the case passing through the capacitance change type proximity sensor. .

Further, the disc detecting device of the present invention is characterized in that the capacitance change type proximity sensors are provided at two locations to detect the presence or absence of a disc in a case containing two discs.

Further, the disc detecting device of the present invention detects the presence or absence of a disc in a case containing one disc by operating only one of the capacitance change type proximity sensors provided at the above two places. It is characterized by doing.

Further, the disk detecting device of the present invention is characterized in that position detecting sensors are provided at two front and rear positions along the carrying direction of the case as the case presence / absence detecting means.

[0013]

The disc detecting apparatus of the present invention comprises the case presence / absence detecting means and the disc presence / absence detecting means, and the case presence / absence detecting means detects that the case after packaging has passed a predetermined position on the transport path of the case. At the same time, when the case presence / absence detecting means detects passage of the case, the disc presence / absence detecting means detects whether or not a predetermined compact disc is accommodated in the case. Therefore, the case after packaging can be inspected in an instant while being transported without cutting the packaging.

[0014]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing the construction of an embodiment of the disc detecting apparatus of the present invention, FIG. 2 is a time chart diagram, and FIG.
Is a circuit diagram.

In FIG. 1, reference numeral 1 denotes a case conveyance path, through which the case 7 after packaging is conveyed. The transfer may be performed manually, or by using a drive belt, a conveyor, or the like.

Reference numeral 2 denotes a tunnel portion, that is, a detection portion, which is installed on the transport path 1, and has a size that allows the case 7 after the packaging is completed to pass therethrough. Microswitches 3 and 4 are provided on the front side surface of the tunnel portion 2 at front and rear positions along the carrying direction of the case 7, respectively. The microswitches 3 and 4 are adapted to turn on the relays C and F if the case 7 is located at that position by a photoelectric sensor such as a phototransistor. Further, proximity switches 5 and 6 are provided on the upper surface of the tunnel section 2 and on the transport path 1 below the tunnel section 2, respectively. The proximity switches 5 and 6 are capacitance-changing type proximity sensors, and detect the conductor by changing the capacitance when the conductor approaches. Therefore, if a disc having a conductor on the disc surface such as a compact disc comes to that position, the proximity switches 5 and 6
Is activated, and relays A and B are turned on.

Next, the operation of the disk detecting device of the present embodiment having the above-mentioned structure will be described with reference to the time chart of FIG. 2 and the circuit diagram of FIG.

For example, when a case 7 containing two compact discs 8 and 9 as shown in FIG. 1 moves on the transport path 1 from left to right in the direction of the arrow and passes through the tunnel portion 2. First, the micro switch 3
When the tip of the case 7 has reached that position, the relay C is turned on. Subsequently, when the tip of the case 7 reaches the position of the micro switch 4, the micro switch 4 detects this and the relay F is turned on. In this way, when both the micro switches 3 and 4 are turned on, the relays C and F are activated and it is determined that the detection section has an inspection case, and the inspection number counter C
1 is counted.

Almost at the same time, the proximity switches 5 and 6 detect that the two compact disks 8 and 9 are housed in the case 7, and turn on the relays A and B, respectively.
To do. In this way, when the proximity switches 5 and 6 operate and both the relays A and B are turned on, the inspection case is determined to be a good product, and the good product counter C2 is counted.
Note that the relay D is operated by the multi-change switch 11 shown in FIG. 3 and is switched to the ON side in the inspection of the case containing two disks as in this embodiment.

On the other hand, unlike the above, for example, when two compact disks are not housed in the case 7 or only one compact disk is housed, the proximity switch 5 is used.
At least one of and 6 is turned off, and the inspection case in this case is a defective product, and the relay E is activated to count errors and the defect number counter C3 is counted, and at the same time, the buzzer BZ is activated. Further, the buzzer BZ can be reset by the reset switch 10.

That is, in the disk detection apparatus of this embodiment, the section T (from the time when the micro switch 4 detects the passage of the front end of the case 7 to ON to the time when the micro switch 3 detects the passage of the rear end of the case 7 and turns OFF ( In FIG. 2), it is determined that the relays A and B are activated by the outputs of the proximity switches 5 and 6 and that if both are ON, it is a good product, and if either is OFF, it is a defective product.

Although the present embodiment has described the detection in the case of the case containing two disks, when the multi-selection switch 11 is switched to the OFF side, the relay D operates and the upper relay A does not operate and the lower relay A operates. Since only the relay B operates, it is possible to detect even a single case containing one disk.

Here, the positions where the micro switch and the proximity switch are provided are not limited to those in the above embodiment, but may be appropriately changed depending on the size of the case, the carrying direction of the case, and the like.

Further, by detecting the number of proximity switches installed in the detector and adjusting the sensitivity, it is possible to detect a disc in the case of a multi-case containing 3-4 discs.

Of course, this embodiment can also be applied to detection for an electronic book (8 cm), which is different from the size of a normal compact disc, by changing the width of the conveyance guide of the conveyance path 1.

Further, by providing a defective product discharge lever on the transport outlet side of the disc detection apparatus of this embodiment, the defective product discharge lever is operated when it is determined that the defective product is defective,
It is also possible to eject the defective case.

[0028]

As described in detail above, according to the disc detecting apparatus of the present invention, the case after packing passes through a predetermined position (that is, the detecting portion) on the case conveying path, so that the inside of the case Since it is possible to instantly detect whether or not a predetermined number of compact discs are stored, that is, whether or not they are non-defective, it is possible to inspect the case after packaging without transporting the package, It has an excellent effect that the inspection efficiency is remarkably improved.

Further, according to the disc detecting device of the present invention, it can be applied to both the single case and the multi-case, and the size of the disc is not particularly limited, so that the usable range becomes extremely wide.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of an embodiment of a disc detection device of the present invention.

FIG. 2 is a time chart diagram of an example of the present invention.

FIG. 3 is a circuit diagram of an embodiment of the present invention.

[Explanation of symbols]

 1 Transport path 2 Tunnel part 3 Micro switch 4 Micro switch 5 Proximity switch 6 Proximity switch 7 Case 8, 9, Compact disk 10 Reset switch 11 Multi-selection switch A relay B relay C relay D relay E relay F relay BZ buzzer C1 inspection number counter C2 non-defective counter C3 defective counter

Claims (5)

[Claims] 1. A device for detecting whether or not a compact disc is stored in the case after packaging of the compact disc in the case, the case presence / absence detection for detecting passage of the case at a predetermined position on the transport path of the case. A disk detecting device comprising: means and a disk presence / absence detecting means for detecting the presence / absence of a disk in the case when the case presence / absence detecting means detects that the case passes a predetermined position. 2. The disk detection device according to claim 1, wherein the disk presence / absence detection means is provided at a position facing the disk surface of the disk in the case that passes through the capacitance change type proximity sensor. . 3. The capacitance change type proximity sensor is
The disc detection device according to claim 2, wherein the disc detection device is provided at a position and detects the presence or absence of a disc in a case containing two discs. 4. The presence or absence of a disk in a case containing one disk is detected by operating only one of the capacitance change type proximity sensors provided at the two locations. 3. The disk detection device described in 3. 5. The disk detection device according to claim 1, wherein the case presence / absence detection means is provided with position sensors at two positions in front and behind along the transport direction of the case.