JP2754444B2 - Electronic parts inspection and removal equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for inspecting an electronic component in a series of electronic components held by a tape by arranging lead wires of the electronic component at a predetermined interval in parallel with each other. To a device for breaking away from

[Prior art]

A so-called radial lead type electronic component in which two or more lead wires are led out in parallel from a component body, or a so-called axial lead type electronic component in which lead wires are led out coaxially from a component body. In many cases, so-called taping-type packaging in which lead wires are arranged at regular intervals and held by tape is used. The electronic component chain that holds the lead wires of the electronic components at a constant interval by such a tape, near the last part of the production line, each electronic component is sequentially inspected for characteristics, and the electronic component determined to be defective there is It is cut from the lead wire or pulled out of the tape together with the lead wire and removed.

For example, when an electronic component is a resistor or a capacitor, a resistance value, a capacitance value, and the like of each electronic component as a product are measured by a measuring instrument, and the measured values conform to predetermined reference values. If no electronic components are defective, break away from the tape. Inspection and disassembly of these electronic components has conventionally been performed on automated lines. In this automated line,
Each time the type of electronic component to be transported changes, the operator sets a reference value according to the type of the electronic component.

[0004]

However, in such a conventional automated line, if a reference value corresponding to the type of electronic components to be conveyed is set erroneously, a large number of non-defective products will continue if the line is continuously operated. Is removed and defective products are left as they are. In particular, if the reference value is erroneously set to a low value, for example, 1/1000, there is an inconvenience that the product is determined to be good even though there are no electronic components on the tape.

Accordingly, the present invention has been made in view of the above-mentioned problems, and in the case where a reference value corresponding to the type of electronic component to be conveyed is set erroneously, the line is stopped. It is an object of the present invention to provide an electronic component inspection and escape device that can quickly avoid a situation in which a line continues to operate while being left.

[0006]

That is, in the present invention,
In order to achieve the above object, the lead wires b of the electronic component a are arranged in parallel with each other at regular intervals, and the characteristics of each electronic component are inspected with respect to the series of electronic components held by the tape 5,
As a result, in a device for removing a defective product whose characteristic value is not within a predetermined range from the tape 5, a feeding mechanism 7 for intermittently transporting the tape 5 in the longitudinal direction thereof and a stop position of the electronic component a are arranged. A sensor 1 for inspecting the presence or absence of a stopped electronic component a, and a measuring device disposed at a stop position of the electronic component a after the position where the sensor 1 is disposed and for inspecting characteristics of the electronic component a stopped there 2 and the electronic component a is disposed at a stop position after the position where the measuring device 2 is disposed, the electronic component a to be stopped there is determined to be present in the sensor 1, and the result of the measurement by the measuring device 2 When it is determined that the electronic component a is defective, the escape unit 3 for removing the electronic component a and the feed mechanism 7 are controlled, and there is no electronic component a to be stopped by the escape unit 3 in the sensor 1. And One in the measurement device 2 when it is determined that the result good measurement, to provide an electronic component testing break away device, characterized in that it comprises a controller 10 to stop the feeding mechanism 7.

[0007]

In the electronic component inspection and removal device according to the present invention,
The controller 10 that controls the driving of the feed mechanism 7 when the electronic component a to be stopped in the escape unit 3 is eliminated in the sensor 1 and the measuring device 2 determines that the electronic component a is non-defective.
Stops the feed mechanism 7, so that if the reference value for inspecting the electronic component a is erroneously set to a low value of 1/1000, the measured value of the electronic component despite the absence of the electronic component on the tape Is determined to satisfy the reference value, the feed mechanism 7 is stopped immediately. For this reason, it is surely found that the set reference value is incorrect, and a situation in which the operation is continued with the set value incorrectly set is avoided early.

[0008]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of an electronic component inspection and removal apparatus according to an embodiment of the present invention, and FIG. 2 shows a control system thereof. As shown in FIG. 1, the electronic component a is
The lead wire b is taped in a state where it is held parallel to the tape 5 at a constant interval. The tape 5 is intermittently fed by the feed mechanism 7 from left to right at intervals of the electronic component a as indicated by arrows.

The first sensor 1 is located at the stop position of the electronic component a when the tape 5 is intermittently fed by the feed mechanism 7.
The first sensor 1 inspects whether or not the electronic component a has stopped there. As shown in FIG. 2, the result of this inspection is stored in the portion A of the electronic component a in the memory 8.

As shown in FIG. 1, the first sensor 1
A measuring device 2 is arranged at a stop position of the later electronic component a. With this measuring device 2, the characteristics of the stopped electronic component a, such as a resistance value, a capacitance value, a withstand voltage value, and an inductance value. Etc. are measured. This measurement result is measured in advance by measuring device 2
Is compared with the reference value set in step S1 to determine whether or not the reference value is satisfied. As shown in FIG.
Is stored in the memory 8 in the portion B of the electronic component a.

As shown in FIG. 1, the electronic component a is stopped at the stop position of the electronic component a after the first measuring instrument 2 and is moved in the direction of the arrow, and the lead wire b of the electronic component a is
A detaching unit 3 for extracting from the container is disposed. As shown in FIG. 2, the escape unit 9 operates only when the arithmetic unit 9 determines that the results of the portions A and B of the memory 8 for the electronic component a simultaneously satisfy certain conditions. The part a is detached from the tape 5. That is, A of the memory 8 indicates that the electronic component a exists,
It is activated only when B of the memory 8 indicates that the characteristic of the electronic component a does not conform to the set reference value, that is, that it is defective.

Further, the operation result of the operation unit 9 is input to a controller 10 for controlling the operation of the feed mechanism 7, and the controller 10 stores A, A in the memory 8 for the electronic component a.
When the result of the part B simultaneously satisfies a certain condition, the feeding mechanism 7 is stopped. That is, A of the memory 8 indicates that there is no electronic component a, and B of the memory 8 indicates that the characteristic of the electronic component a conforms to the set reference value, that is, that it is a non-defective product. When shown, the controller 10 stops the feed mechanism 7. At this time, the alarm 6 installed near the tape 5 transport line is sounded.

As shown in FIG. 1, the first sensor 1
A second sensor 4 is disposed at a later stop position of the electronic component a, and the second sensor 4 checks whether or not the electronic component a has stopped there. As shown in FIG. 2, the inspection result of the second sensor 4 is sent to the arithmetic unit 9, and the inspection result and the result of the portion B of the memory 8 for the electronic component a simultaneously satisfy a certain condition. Then, the controller 10 stops the feed mechanism 7. That is,
At the same time that the sensor 2 detects the presence of the electronic component a, B of the memory 8 indicates that the characteristic of the electronic component a does not conform to the set reference value, that is, it is defective. At this time, the controller 10 stops the feed mechanism 7. At this time, the alarm 6 installed near the tape 5 transport line is sounded.

FIG. 3 is a flow sheet showing a processing procedure of the electronic component a of the electronic component inspection and removal apparatus according to this embodiment. The operation of the apparatus shown in FIGS. 1 and 3 will be described with reference to FIG. First, when the electronic component a stops at the position of the sensor 1, the presence or absence of the electronic component a is checked. When the electronic component a is not detected by the sensor 1, it is stored in A of the memory 8 as no product. On the other hand, when the electronic component a is detected by the sensor 1, it is stored in A of the memory 8 as a product.

Next, when the electronic component a stops at the position of the measuring device 2, the characteristic value of the electronic component a is measured there. If the characteristic value of the electronic component a does not conform to the preset reference value as a result of this measurement, it is stored in the memory 8 as B as a product defect. On the other hand, when the characteristic value of the electronic component a conforms to the preset reference value, it is stored in B of the memory 8 as a good product.

The results of A and B in the memory 8 are compared and calculated by the arithmetic unit 9. If A in the memory 8 indicates that there is no electronic component a, B in the memory 8 is When the characteristic of the component a is in conformity with the set reference value, that is, when it indicates that it is a non-defective product, it is highly suspected that the set value is incorrect.
Stops the feed mechanism 7. At this time, an alarm 6 installed near the tape 5 transport line is sounded to notify the operator of the abnormality.

On the other hand, A of the memory 8 indicates that the electronic component a exists, and B of the memory 8
Indicates that the characteristic of the electronic component a does not conform to the set reference value, that is, that the electronic component a is defective, the feed mechanism 7 is not stopped, and the electronic component a is Will be escaped from On the other hand, A of the memory 8 indicates that the electronic component a is present, and B of the memory 8 indicates that the characteristic of the electronic component a conforms to the set reference value, that is, that it is a good product. In the case shown, the escape unit 3 is not operated, and the electronic component a is sent to the next second sensor 4.

The second sensor 4 checks the presence or absence of the electronic component a. As a result, when the presence of the electronic component a is detected, the result is compared with B in the memory 8. As a result, when the record of the electronic component a in the memory B indicates that the product is defective, the controller 10 controls the feeding mechanism 7 because the operation of the previous escape unit 3 is likely to be defective. Stop abnormally. On the other hand, when the presence of the electronic component a is not detected, the line does not stop and the electronic component a is sent next.

In this way, the processing is performed for each electronic component a. As is clear from this description, if the detection results of the sensors 1 and 4 of each electronic component a and the results of the characteristic inspection by the measuring device 2 are inconsistent, the line is abnormally stopped. If the set value of the characteristic of the electronic component a is incorrectly set, or if there is any trouble, the sensor 1,
In the case where the measuring instrument 4 or the measuring instrument 2 fails, the line can be stopped early. In the above-described embodiment, the means for removing the defective electronic component a is to remove the lead wire b from the tape 5, but simply cut the lead wire b to remove only the main body of the electronic component a. May be used.

[0020]

As described above, according to the present invention, when a reference value corresponding to the type of electronic component to be conveyed is erroneously set, the line is stopped. The situation where non-defective products are removed or defective products are sent with remaining defective products can be avoided at an early stage. Thereby, non-defective electronic components are not wasted and discarded, and the productivity of electronic components can be increased.

[Brief description of the drawings]

FIG. 1 is a plan view of an electronic component inspection and removal device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a control system of the electronic component inspection and escape device according to the embodiment.

FIG. 3 is a flow sheet showing an operation of the electronic component inspection and removal device according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sensor 2 Measuring device 3 Escape part 4 Sensor 5 Tape 5 7 Feeding mechanism 10 Controller a Electronic component b Electronic component lead wire

Claims (1)

(57) [Claims] A lead wire (b) of an electronic component (a) is arranged parallel to each other at a fixed interval, and the characteristics of each electronic component are inspected for a series of electronic components held by a tape (5). A feeding mechanism (7) for intermittently transporting the tape (5) in a longitudinal direction thereof, and a stop position of the electronic component (a) in an apparatus for removing a defective product whose value is not within a predetermined range from the tape (5). And a sensor (1) for inspecting the presence or absence of the stopped electronic component (a), and a sensor (1) disposed at a stop position of the electronic component (a) after the position where the sensor (1) is disposed. A measuring device (2) for inspecting the characteristics of the electronic component (a) stopped at a time, and the electronic component (a) is disposed at a stop position after the position where the measuring device (2) is disposed, and stops there. Electronic component (a) to be present in sensor (1) And when the measuring device (2) determines that the electronic component (a) is defective as a result of the measurement, the control section controls a release section (3) for removing the electronic component (a) and the feed mechanism (7). When the electronic component (a) to be stopped in the escape unit (3) is determined to be absent in the sensor (1), and is determined to be non-defective by the measurement by the measuring device (2),
An electronic component inspection and removal device, comprising: a controller (10) for stopping a feed mechanism (7).