JP2814525B2 - Electronic component classification device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component classifying apparatus for classifying electronic components according to their electrical characteristics in an electronic component manufacturing process.

2. Description of the Related Art In recent years, in order to reduce the weight and weight of electronic components and reduce costs, there is a demand for an electronic component classification device capable of responding to rationalization and speeding up in the manufacturing process.

Hereinafter, a conventional electronic component classification device will be described. FIG. 4 is a perspective view of a conventional electronic component sorting apparatus, in which 1 is a parts feeder for inputting electronic components, 2 is a spring chute for supplying electronic components, 8 is a sorting disk, and is intermittently moved in the C direction by 11 index driving devices. Has been rotated.
Reference numeral 3 denotes a measurement terminal for measuring characteristics of the electronic component inserted into the classification disk 8, and reference numeral 4 denotes a solenoid fixed on a base, which opens and closes 6 shutters.

The operation of the electronic component sorting apparatus configured as described above will be described below with reference to the cross-sectional view of FIG. 3 and the perspective view of FIG.

First, the electronic component supplied to the parts feeder 1 passes through the spring chute 2 and the work hole 36 of the classification disk 8 which is intermittently moved by the index driving device 11.
Supplied to Reference numeral 3 denotes a measuring terminal, which measures the electronic components one by one while rotating in the direction B, determines by a measuring device (not shown), and outputs a classification signal to the solenoid of 4. The solenoid 4 opens the shutter 6 in the X direction at a predetermined position, and the classified electronic components fall through the hose 7 to the non-defective receiving box 13. Further, the shutter 6 returns to the X 'direction by the spring 5 before the electronic component in the adjacent work hole moves, thereby preventing the next electronic component from being mixed and dropped.

Problems to be Solved by the Invention In the above-described conventional configuration, the classification speed is restricted by the round trip time of the solenoid 4 fixed on the base in the XX 'direction. If the speed exceeds the permissible time, the operation of the solenoid 4 will not be able to keep up, and the electronic components to be sorted and falling will bite between the classification disk 8 and the shutter 6 or bite between the shutter 6 and the fixed disk 9. Electronic parts for scratches and cracks and classification discs 8,
The shutter 6 and the fixed disk 9 are damaged. If the shutter 6 is delayed to close, the electronic components in the next work hole are mixed and dropped. For the above reasons, there is a problem that high-speed classification cannot be performed.

Means for Solving the Problems In order to solve this problem, the present invention provides a shutter for opening and closing the bottom of a plurality of holes provided in the classification disk for each hole,
Driving means for opening and closing the shutter is provided on the classification disk.

Operation With this configuration, since the shutter driving means is provided for each hole into which a component is inserted, it is possible to reliably control the drop of each component.

Embodiment FIG. 1 is a cross-sectional view of an electronic component classification device according to an embodiment of the present invention, and specifically, is a cross-sectional view of a resistance value classification device of a cylindrical fixed resistor.

In FIG. 1, it is assumed that electronic components are inserted one by one in the direction of E similarly to the conventional example. 24 is an intermittently or continuously rotating classification disk, and 38 is a fixed disk. 20 is a solenoid which pulls a shutter 22 urged by a spring 21 toward the center of the sorting disc. The shutter 22 is provided with a hole 22a, and when pulled by the solenoid 20, the hole 22a coincides with the hole 37 provided in the classification disk 24, and the electronic component falls. As many classification units as solenoids 20 and shutters 22 and springs 21 interlocked with the solenoids 20 are arranged in the same number as the number of work holes 37.
Attached to. The transmitting light emitting diodes 19, which are the operation signal transmitting devices of the solenoid 20, are attached to the base 25 in a number of categories. Reference numeral 16 denotes a phototransistor which is a solenoid operation signal receiving device, which is mounted at a position corresponding to each solenoid 20 on a rotating classification disk. Reference numeral 23 denotes a solenoid drive circuit housing in which an electric circuit for driving the solenoid 20 is incorporated, and reference numeral 14 denotes a hose through which classified electronic components fall, which is connected to 15 good-quality receiving boxes. Numeral 34 shown in FIG. 2 denotes a solenoid drive power supply, which supplies power to the solenoid drive circuit housing 23 via a power supply brush 35, a power receiving armature 32, a large-capacity charging capacitor 33, and wiring in the main shaft 39.

The operation of the electronic component classification device of the present embodiment configured as described above will be described below.

Power is supplied from the solenoid drive power supply 34 to the solenoid drive circuit housing 23, and the solenoid drive circuit housing 23 is in a state of waiting for an operation signal. The determination result of the electronic component measured by the measuring circuit 38 is shifted by the delay circuit or the shift register 39 and the transmitting light emitting diode 19 mounted at the position to be classified.
And emit a signal. The light received by the receiving phototransistor 16 attached to the classification disk 24 is converted into an electric signal and sent to the solenoid drive circuit housing 23 to operate the solenoid 20 to open the shutter in the X direction. The classified electronic components fall through the hose 14 to the non-defective product receiving box 15. The shutter 22 opened in the X direction is returned in the X 'direction by the spring 21 until the next electronic component is supplied.
Classification is performed by repeating the above operation.

As described above, according to the present invention, since the shutter 22 and the solenoid 20 that drives the shutter 22 are arranged on the classification disk, the electronic components do not bite when the shutter 22 is opened and closed, and the electronic components may be damaged. This prevents breakage and breakage of the disc, etc., and improves the part replacement cycle by more than 10 times. Furthermore, compared to a conventional electronic component classification apparatus, the opening / closing time of the shutter can be set more freely, so that the classification speed of the electronic component classification apparatus can be improved by about 50%. In addition, it is possible to prevent a serious problem in the conventional electronic component classifying apparatus, that is, the mixing and dropping of electronic components in another work hole.

Effect of the Invention As described above, the present invention provides a shutter for opening and closing the bottom of a plurality of holes provided on a classification disk on which electronic components are mounted and rotated, and a driving means for opening and closing the shutter is provided by a classification disk. Therefore, even if the rotation of the classification disk is accelerated, the shutter opening / closing timing can be made loose, and a high-speed electronic component classification device that does not sandwich the electronic component between the shutters can be provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an electronic component classification device according to an embodiment of the present invention, FIG. 2 is a perspective view of the electronic component classification device shown in FIG. 1, and FIG. 3 is a cross-sectional view of a conventional electronic component classification device. FIG. 4 is a perspective view of the electronic component classification device shown in FIG. 16 Phototransistor for reception, 19 Light emitting diode for transmission, 20 Solenoid, 22 Shutter, 24
… Classification disc, 38 …… Fixed disc.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) G01R 31/00-31/01 H05K 13/02 B07C 5/36

Claims (1)

(57) [Claims] 1. A classifying disk having a plurality of holes for inserting electronic components and rotating, a shutter provided for each hole provided in the classifying disk, for opening and closing the bottom of the hole, and the classifying disk. A plurality of driving means for driving the shutter for each shutter, a signal generating means provided outside the classification disk and generating an opening / closing signal of the shutter in the driving means; and An electronic component classifying device, comprising: a signal receiving unit provided for each driving unit and receiving an open / close signal from the signal generating unit and transmitting the signal to each of the driving units.