JPH0746386Y2 - Automatic chip feeder - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip-like work for supplying a chip-like work such as a chip-like electronic component (for example, a chip-like resistor or a chip-like capacitor) to a supply target portion such as a disc storage groove. Related to the automatic feeding device.

[0002]

2. Description of the Related Art Conventionally, as a device for supplying a chip-shaped work of this type, for example, Japanese Patent Laid-Open No. 64-38320,
A configuration as described in Japanese Utility Model Laid-Open No. 1-109016 is known.

The outline of this conventional tip-shaped workpiece supply device will be described. When the tip-shaped workpieces are continuously supplied to the linear supply path, the first and second stoppers work so that the tip-shaped workpieces at the leading end are processed. The workpiece is released by facing the disk storage groove. The released chip-shaped work is supplied to the storage groove by jetting air or suctioning by a vacuum device. In this way, the chip-shaped work can be sequentially supplied to the storage groove of the disk. Then, for example, when the chip-like work broken in the previous step is supplied into the supply path,
The divided piece and the front side of the next chip-like work are both inserted into the storage groove of the disk, and the rear side of the chip-like work is left in the supply passage. That is, the chip-like work next to the divided piece is in a state of straddling the storage groove of the disk and the supply path. When the disc is rotated in this state, the chip-shaped work extending over the storage groove and the supply passage may be destroyed, and the disc or the supply passage may be damaged. Such a supply trouble occurs not only when the chip-shaped work is cracked but also when the size or shape is defective. Therefore, in order to avoid such a supply trouble, the sensor detects the supply state of the chip-shaped workpiece and stops the rotation of the disk.

[0004]

In the above-mentioned conventional chip-like work supply device, the sensor detects the supply trouble occurring at the connection portion between the supply path and the storage groove of the disc, so that the rotation of the disc is stopped. By doing so, it is possible to prevent damage to the disk, the supply path, and the like. However, a defective chip-like work that causes a supply trouble must be stopped by the device, the supply path and the like must be disassembled and discharged manually by tweezers, etc., which is not only troublesome, It is inefficient.

The present invention solves the above-mentioned problems of the conventional example, and a chip having a crack or a chip which causes a supply trouble occurring at a connecting portion between a supply path and a supplied portion. The work efficiency can be improved by automatically discharging the chip-shaped work, etc., which is imperfectly supplied due to the defective work, the shape, etc., and also the structure can be simplified so that the cost does not increase. It is an object of the present invention to provide an automatic feeder for chip-shaped works.

[0006]

Means for Solving the Problems The technical solution of the present invention for achieving the above object is a supply path for linearly and continuously supplying a chip-like work to a supply target portion.
A discharge gate that forms a part of the side wall of the supply path near the supply target side and is openable and closable, and the supply state of the chip-like work to the supply target section is good or defective, and the supply target section is The detection means capable of detecting the presence or absence of chipping of the chip-shaped work supplied to the device, the detection means capable of detecting the presence or absence of cracking of the chip-shaped work transferred in the supply passage, and the detection result by the detection means. And a driving device for opening the discharge gate, and with the opening of the discharge gate, the chip-like work at the opened discharge gate position, or the chip-like work at the discharge gate position and the supply target portion It is provided with a discharging means for discharging by jetting.

[0007]

Therefore, according to the present invention, the chip-like workpieces linearly and continuously transferred through the supply path are sequentially supplied to the supply target portion. Then, when the detection means detects a defective supply state of the chip-shaped work to the supply target portion, a chip of the chip-shaped work supplied to the supply target portion, or a crack of the chip-shaped work transferred in the supply path is detected. It is possible to open the discharge gate by the driving device and forcibly discharge the chip-shaped work that causes a supply trouble by ejecting air by the discharge means. In this way, the chip-like work that has been cracked or chipped causing the supply trouble, or the chip-like work that has been imperfectly supplied due to poor shape or the like can be automatically discharged. Further, since a part of the side wall of the supply path is opened by the discharge gate and the chip-like work which causes the supply trouble is discharged by the jet of air, the structure can be simplified.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, a chip-shaped resistor which is a chip-shaped workpiece automatically supplied in the embodiment of the present invention will be described. FIG. 6A is a plan view of the chip resistor. Figure 6
As shown in (a), in the chip-shaped resistor R, a carbon film serving as a resistor is formed on the outer surface of a substrate made of ceramic or the like, and a desired groove is formed in the carbon film to adjust the resistance value. . Coat layer R1 whose carbon film is made of glass or the like
The electrode R2 is formed on both ends by plating or the like, and the resistance value is displayed on the surface side of the coat layer R1 by printing or the like. When manufacturing this chip resistor R,
In case of defective shape, manufacturing, transfer, etc., as shown in FIG.
There is a case where the chip resistor R is broken as shown in FIG. 6B or a part is chipped as shown in FIG.
If it is mixed in a good chip resistor R, a supply trouble will occur, so it is necessary to automatically discharge it when supplying.

Next, the automatic feeder of the present invention will be described. 1 to 5 show an automatic feeder for chip-shaped workpieces according to an embodiment of the present invention. FIG. 1 is a partially cutaway plan view of a main part, and FIG. 2 is a partially cutaway side view of a main part. 3 is a view taken along the line AA of FIG. 1, FIGS. 4A and 4B are partially cutaway plan views for explaining the discharging operation of the chipped work, respectively, and FIGS. 5A and 5B. [Fig. 6] is a partially cutaway plan view for explaining a discharging operation of each chipped work piece.

As shown in FIGS. 1 to 3, a disk 1 is rotatably supported around a vertical rotation shaft (not shown). The disk 1 has an annular protrusion 2 formed on the upper outer periphery thereof, and a large number of storage grooves 3 that are the supply target portions are formed at equal intervals in the projection 2, and a vertical suction is provided at the center of the bottom of each storage groove 3. The hole 4 is formed. The disk 1 is intermittently rotated in the arrow X direction by a drive device (not shown).

A supply path 5 for linearly transferring the chip-shaped resistors R is provided in order to sequentially supply the chip-shaped resistors R to the respective storage grooves 3 of the disk 1. That is, the supply path 5 surrounded by the pair of guide members 6 and 7 and the upper surface plate 8 is formed. Chip resistors R are continuously supplied to the supply path 5 by a straight feeder (not shown). A part of the side wall of the supply path 5 near the disk 1 is composed of a discharge gate 9, which is driven by a solenoid (not shown) to a solid line position in FIG. 1 via a transmission mechanism (not shown). It is designed to be closed and opened at the position indicated by the chain line in FIG. The discharge gate 9 is set to be slightly wider than the length of the chip resistor R.

A stopper 10 is provided on the disk 1 side, and the stopper 10 can position the chip-shaped resistor R supplied from the supply path 5 to the storage groove 3 at a predetermined position. Chip resistor R stored in the storage groove 3
When the disk 1 is transferred to the downstream side in the rotational direction with respect to the supply path 5 as the disk 1 rotates, it is sucked by a suction device (not shown) through the suction hole 4 and held in the storage groove 3.

A fiber sensor 11 is located above the tip of the stopper 10 so as to straddle both the stopper 10 and the chip-shaped resistor R well supplied to the supply groove 3.
Is provided, and the rear end of the fiber sensor 11 faces a light emitting / receiving device (not shown). Then, the light is emitted from the light projector through the fiber sensor 11, and the reflected light is received by the light receiver through the optical fiber sensor 11. At this time, if both the stopper 10 and the chip-shaped resistor R are reflected, the supply state of the chip-shaped resistor R to the storage groove 3 is good, and if reflected only from the stopper 10, the chip resistor R to the storage groove 3 is supplied. It is possible to detect that the supply state is bad or that the chip-shaped resistor R supplied to the storage groove 3 is missing. A hole 12 is formed in the upper surface plate 7 so as to correspond to the supply path 5, a fiber sensor 13 is provided above the hole 12, and a rear end of the fiber sensor 13 faces a light projecting / receiving device (not shown). There is. These holes 12 and the fiber sensor 13 are provided to the chip resistor R in the transfer direction of the chip resistor R when the chip resistor R immediately before the discharge gate 9 and the chip resistor R in front of it are normal. The position is set to straddle. And
Light is emitted from the light projector through the fiber sensor 13, and reflected light is received by the light receiver through the fiber sensor 13. At this time, when reflected from both of the chip resistors R following the front and back, there is no crack in the chip resistor R located immediately before the discharge gate, and when reflected from only one chip resistor R, the discharge gate 9 It can be detected that the chip-shaped resistor R located immediately before is cracked.

An air ejection pipe 14 for ejecting air toward the chip-shaped resistor R supplied to the storage groove 3 is provided on the disk 1, and a discharge gate 9 is provided on the guide member 6.
To the chip-shaped resistor R located at the side, the air ejection pipe 15 for ejecting air from the side toward the discharge gate 9 side.
Is provided. The other ends of the air ejection pipes 14 and 15 are connected to a compressor (not shown). The solenoid that opens and closes the discharge gate 9 and the compressor are driven based on the detection result of the detection means using the fiber sensors 11 and 13.

The operation of the above configuration will be described below. As shown in FIGS. 1 and 2, the chip resistor R is continuously supplied into the supply path 5 by a straight feeder and is linearly transferred in the supply path 5. On the other hand, the disc 1 is intermittently rotated so that the arbitrary storage groove 3 faces the supply path 5 and is stopped. As a result, the leading chip-shaped resistor R is pushed by the rear chip-shaped resistor R to be housed in the housing groove 3 and brought into contact with the stopper 10 to be regulated in position. After the position is regulated, the disc 1 is intermittently rotated so that the next storage groove 3 is fed to the supply path 5
The chip-shaped resistor R is housed in the housing groove 3 similarly to the above, and the chip-shaped resistor R in the housing groove 3 is inserted into the housing groove 3 by the suction device through the suction hole 4. Retained. During this period, it is detected by the detection means using the fiber sensor 11 or the like that the chip-shaped resistor R is being supplied to the housing groove 3 in good condition, and that the chip-shaped resistor R is not chipped. When it is detected that the chip-shaped resistor R has no cracks by the detecting means used,
By repeating the above operation, the chip resistors R can be sequentially supplied to the storage groove 3 of the disk 1 and transferred for processing, inspection and the like.

As shown in FIG. 4 (a), if the chip-shaped resistor R supplied to the storage groove 3 is missing, this is detected by the detection means using the fiber sensor 11 and the like, and goes straight. The drive of the feeder is stopped (when the supply assisting means of the chip resistor R by air is used, the drive of this supply assisting means is also stopped), and the solenoid is driven, as shown in FIG. 4 (b). Then, the discharge gate 9 is opened. At the same time, the compressor is driven to eject air from the air ejection pipes 14 and 15, respectively. Along with this, first, the chip-shaped resistor R located at the discharge gate 9 is discharged to the outside from the opening of the side wall of the supply path 5, and then the chip-shaped resistor R that is lacking is received from the storage groove 3 to the supply path 5.
And is forcibly discharged to the outside from the opening of the side wall of the supply path 5. Therefore, it is possible to prevent the occurrence of supply trouble.

Further, as shown in FIG. 5 (a), the supply path 5
If the chip-shaped resistor R supplied to is broken,
When this is detected by the detection means using the fiber sensor 13 or the like, and the broken chip-shaped resistor R is transferred to the position of the discharge gate 9, the driving of the straight advance feeder is stopped (the chip-shaped resistor R by air is stopped). When the supply assisting means is used, the drive of the supply assisting means is also stopped.), And the solenoid is driven to open the discharge gate 9 as shown in FIG. 5B. Along with this, drive the compressor,
Air is ejected from the air ejection pipe 15. Along with this, the cracked chip-shaped resistor R located at the discharge gate 9 is forcibly discharged to the outside from the opening portion of the side wall of the supply path 5. Therefore, it is possible to prevent the occurrence of supply trouble. When the air ejection pipes 14 and 15 are controlled to be opened and closed by a single valve, air is ejected from the air ejection pipes 14 and 15 to cause the chip-shaped resistor R in the storage groove 3 to recede in an oblique direction. It can be discharged to the outside from the opening of the side wall.

Also, when a chip-shaped resistor R having a bad shape or the like is mixed and does not completely enter the storage groove 3 of the disk 1 and a part thereof remains on the supply path 5 side, as shown in FIG. As in the case of (b), when the chip-shaped resistor R is detected by the detection means using the fiber sensor 11 or the like, the driving of the linear feeder or the like is stopped, the discharge gate 11 or the like is opened, and the air ejection pipe 14,
Air is ejected from 15, and the chip-shaped resistor R at the position of the discharge gate 9 and the chip-shaped resistor R causing the supply trouble are forcibly discharged to the outside from the opening of the side wall of the supply path 5. Therefore, it is possible to prevent the occurrence of supply trouble.

In the above embodiment, the case where the storage grooves 3 formed at equal intervals on the outer periphery of the disk 1 as the supply target portion do not have the back wall has been described, but the present invention can be carried out even when the back wall is provided. However, in this case, the stopper 10 becomes unnecessary. Further, not only when the storage groove 3 is formed in the disk 1,
It can also be applied to the case of linear transfer. In addition to the above, the present invention can be variously modified in design without departing from the basic technical idea.

[0020]

As described above, according to the present invention, the chip-shaped workpieces that are linearly and continuously transferred through the supply path are
It is sequentially supplied to the supplied portion. Then, when the detection means detects a defective supply state of the chip-shaped work to the supply target portion, a chip of the chip-shaped work supplied to the supply target portion, or a crack of the chip-shaped work transferred in the supply path is detected. It is possible to open the discharge gate by the driving device and forcibly discharge the chip-shaped work that causes a supply trouble by ejecting air by the discharge means. In this way, chip-like workpieces that are cracked or chipped that cause supply problems, chip-like workpieces that are imperfectly supplied due to a bad shape, etc. can be automatically ejected. It is possible to improve. Further, since a part of the side wall of the supply path is opened by the discharge gate and the chip-like work which causes the supply trouble is discharged by jetting air, the structure can be simplified.
Therefore, it is possible to prevent the cost from increasing.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of an essential part showing an automatic feeder for chip-shaped workpieces according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view of an essential part showing the automatic feeder.

FIG. 3 is a view showing the same automatic supply device, taken along the line AA of FIG.

FIG. 4 (a) is a partially cutaway plan view of the automatic feeder for explaining the operation of the automatic feeder, and FIG. 4 (b) is a chipped tip for explaining the operation of the automatic feeder. Plan view with some cutouts in the state of discharging a circular workpiece

FIG. 5 (a) is a partially cutaway plan view of a state in which a cracked chip-like work is transferred, for explaining the operation of the automatic feeder, and (b) is a broken chip for explaining the operation of the automatic feeder. Plan view with some cutouts in the state of discharging a circular workpiece

6A is a plan view showing a chip-shaped resistor which is a chip-shaped work. FIG. 6B is a plan view showing a cracked chip-shaped resistor. FIG. 6C is a plan view showing a chip-shaped resistor.

[Explanation of symbols]

 1 Disc 3 Storage Groove 4 Suction Hole 5 Supply Channel 9 Discharge Gate 10 Stopper 11 Fiber Sensor 13 Fiber Sensor 14 Air Jet Pipe 15 Air Jet Pipe R Chip Resistor (Chip Workpiece)

Claims (1)

[Scope of utility model registration request] 1. A supply passage for linearly and continuously supplying a chip-like work to a supply target portion, and a part of a side wall of the supply passage at a position closer to the supply target portion, which constitutes an opening and closing. A discharge gate provided so as to be able to detect the presence or absence of good or bad supply of the chip-like work to the supplied part and the presence or absence of chipping of the chip-like work supplied to the supplied part; For detecting the presence or absence of cracks in the chip-shaped workpiece transferred in the road, a drive device that is driven based on the detection result of the detection means, and opens the discharge gate, and to open the discharge gate. Along with this, an automatic chip-shaped work supply device is provided, which includes a chip-shaped work at the opened discharge gate position, or a discharge means for discharging the chip-shaped work at the discharge gate position and the supply target portion by jetting air. .