KR0140931B1 - Electric characteristics automatic inspection apparatus on slat conveyor - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for inspecting electricity flowing on a slat conveyor, power consumption of electronic products, input current, leakage current, and low voltage start. The present invention relates to a device for automatically inspecting the electrical properties of a product on a slat conveyor, which allows one process to be performed on a slat conveyor that is not present and the inspection can be automatically executed to automatically determine and record the quantity and defect.

In the conventional power consumption, input current, leakage current, and low voltage start-up inspection apparatus, the inspection is performed by hand, and each inspection process is inevitably divided into three processes, thereby lowering productivity and reliability of the inspection results. There is a problem, such as poor workability because it has to record the defective content one by one.

The present invention reads and determines the input and output of the external and the measured value of the measuring instrument, the controller 13 for outputting the result to the monitor 11, the lamp 18, the buzzer 19, etc., power consumption and input current And a power current voltage meter 14 for measuring a low voltage starting characteristic, a leak current meter 15 for measuring a leakage current of a product, and signals of the respective meters and controllers, various sensors, lamps, buzzers, and line stop switches. By using the relay box 16 for connection and control and the power switching circuit 22 for controlling the power supply according to the test item, the test results of the power consumption, the input current, the low voltage start, and the leakage current meter are automatically checked. The electrical inspection of the product on the slat conveyor enables automatic and high efficiency inspection of the electrical characteristics of the product by determining and executing the inspection points sequentially using a relay sequence circuit. Provides a feature automatic inspection device.

Description

Device for automatic inspection of electrical properties of products on slat conveyors

1 is a view showing the configuration of a conventional power consumption, input current measuring device

2 is a view showing the configuration of a conventional leakage current measuring device

3 is a view showing the configuration of a conventional starting voltage test apparatus

4 is a diagram showing the system configuration of the automatic electrical property inspection apparatus of the present invention

5 is a circuit diagram showing the connection between the measuring instrument, the conveyor and the controller in the present invention

6 is a circuit diagram of a relay box and its peripheral circuit in the present invention.

7 is a detailed circuit diagram of the relay box and the peripheral circuit in the inspection apparatus of the present invention

8 is a flowchart of the automatic inspection process according to the present invention

* Explanation of symbols for main parts of the drawings

11: monitor 12: keyboard

13: Controller 13a: DIO Board

14 power current voltage meter 15 leakage current meter

16: relay box 17: sensor

18: lamp 19: buzzer

20: line stop switch 21: rated power supply

22: power switch circuit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for inspecting electricity flowing on a slat conveyor, power consumption of electronic products, input current, leakage current, and low voltage start. The present invention relates to a device for automatically inspecting the electrical properties of a product on a slat conveyor, which allows one process to be performed on a slat conveyor that is not present and the inspection can be automatically executed to automatically determine and record the quantity and defect.

Conventional power consumption, input current, leakage current, low voltage start-up inspection device is made through manual work.

In the conventional power consumption and input current measuring device, as shown in FIG. 1, the copper plate 2 is formed on the bottom of the pallet 1 on which the product is mounted, and the power supply terminal 3 for connecting the product is installed. A power brush 5 connected to the copper plate 2 was connected to the conveyor 4 by connecting a power consumption meter 6.

The inspection process by the conventional power consumption and the input current inspection device configured as described above will be described with reference to FIG.

When the product is mounted on the pallet 1 and flows on the conveyor 4 to the power brush 5, the power connected to the product connected thereto through the brush 5, the copper plate 2, and the power supply terminal 3. ACV) to start the product.

At this time, the power consumption measuring instrument 6 measures the power consumption and input current of the product and displays the measured value on the digital display of the measuring instrument. The inspector reads the displayed value and visually judges the product to pass or fail the product. In case of failure, the defect is recorded on the inspection record sheet.

2 is a conventional leakage current specifying device, wherein a leakage current measuring device 6a is connected to the power brush 5 through a terminal conversion switch SW, and a pallet 1 on which a product is loaded is a conveyor 4. When it is attached to the power brush 5 on the (), the product on the pallet (1) is operated by the rated power applied to the power brush (5).

At this time, the leakage current meter 6a measures the current flowing between the ground terminal and the one terminal of the power supply according to the switching of the switch SW, and displays the current on the digital display of the meter 6a. The product is judged to pass or fail the product, and when the product fails, the defect is recorded on the inspection record sheet.

3 is a conventional low-voltage inspection device, the power consumption measuring instrument 6 is connected to the power brush (5), 85% of the rated power is supplied from the power supply unit 7, the pallet loading the product When (1) arrives on the power brush (5) on the conveyor (4), the product is operated on the pallet (1) by 85% rated power of the product rated voltage applied to the power brush (5).

At this time, the power consumption measuring instrument 6 measures the power consumption of the product and displays it on the digital display of the measuring instrument 6, and the inspection worker reads the displayed value and visually judges the product to determine whether the product is passed or failed. The defect is recorded on the inspection record sheet.

However, the conventional power consumption, input current, leakage current, and low voltage start-up inspection apparatus as described above are inspected by hand, and each inspection process is inevitably divided into three processes, resulting in a decrease in productivity. There is a problem in the reliability of the test results, there is a problem such as poor workability because the bad content must be recorded one by one.

The present invention is to automatically determine the test results of the power consumption, input current, low voltage start-up, leakage current measuring instrument using a controller, and the inspection time is sequentially executed using a relay sequence circuit, thereby inspecting the electrical characteristics of the product It is an object of the present invention to provide a device for automatically checking the electrical properties of a product on a slat conveyor that can be automated and highly efficient.

4 shows the configuration of the present invention.

As shown in FIG. 4, the apparatus for automatically checking the electrical properties of the product on the slat conveyor of the present invention includes a monitor 11 which displays various information such as production model, pass and fail determination result, production quantity, number of defects, and defective rate as an image. In addition, a keyboard 12 for inputting an inspection operator's commands and various data, a DIO board for inputting / outputting externally and an interface board for GPIB for reading measurement values of a measuring instrument are built in. The controller 13 for controlling the input of the detection signal, the lamp and the buzzer and the line stop switch output, and outputting the inspection information to the monitor 11 and the power consumption and input of the product when the product set is powered. The power current voltage meter 14 which measures the current and low voltage starting characteristics and supplies the result to the controller, and when the rated power is applied to the product set, Leakage current measuring instrument (15) for measuring leakage current and supplying the result to the controller, and relay box (16) for signal connection and control of each measuring instrument and controller and various sensors, lamps, buzzers, and line stop switches. ), A sensor 17 detecting a pallet and a product flowing on the slat conveyor and supplying the product to the relay box 16, a lamp 18 connected to the relay box 16 to display a test result; A buzzer 19 connected to the relay box 18 and outputting a test result as an alarm sound signal, a line stop switch 20 connected to the relay box 16 to drive or stop a conveyor driving motor; A power supply circuit (AVR) 21 for supplying power to the product, and a power switching circuit 22 for properly switching the power supply path applied to the product from the power supply 21 under the control of the relay box 16. ).

5 is a view showing in detail the connection relationship between the measuring device, the power supply and the controller, the brush on the conveyor in the apparatus for automatically checking the characteristics of the product on the slat conveyor of the present invention described above.

As shown in FIG. 5, the power current voltage meter 14 and the leakage current meter 15 are connected to the controller 13 through the GPIB interface board 13b embedded in the controller, and embedded in the controller 13. The DIO board 13a is connected to a sensor, a lamp, a buzzer, a line stop switch, and the like, and a power switching to appropriately switch the power applied to the product from the power supply 21 through the power brush 24 on the conveyor 23. A circuit 22 is connected between the measuring instruments 14 and 15, and on the conveyor 23, a limit switch LS1 for detecting a pallet and a beam sensor BS1 for detecting a product are provided. Configuration.

6 is a diagram illustrating a connection relationship between the relay box 16 and a peripheral circuit, in which a power control unit 21 and a power switch circuit 22 which are controlled by the relay box 16 are connected, and a DIO board is connected. It is connected to the 13a to receive the signal of the sensor 17, to control the lamp 18, the buzzer 19, the line stop switch 20, and to be connected to the controller 13 through the GPIB bus interface board It was.

7 is a diagram showing the electric circuit configuration of the present invention centered on the relay box, wherein the control sequence as shown in FIG. 8 is executed by the relay sequence circuit to automatically check the electrical characteristics of the product. We will build the database.

The automatic inspection of power consumption, input current, leakage current, and low voltage starting characteristics by the apparatus for automatically checking the electrical characteristics of the product on the slat conveyor of the present invention configured as described above will be described with reference to FIGS. 4 to 8. Same as

First, as shown in FIG. 4 and FIG. 5, the pallet which loaded the product on the slat conveyor 23 arrives, the limit switch LS1 (LS2) turns on, detects a product, and detects the beam sensor BS1. Comes on.

Therefore, as shown in FIG. 7, when the limit switch LS1 is turned on, the magnet switch MC1 and the relay R12 and its contact aR12 are turned on, and when the limit switch LS2 is turned on, the relay R1 is turned on. R13 and its a contact R1 and R13 are turned on, and the relay R2 is turned on when the beam sensor BS1 is turned on.

Then, when the relays R1 and R2 are turned on, the relay R3 is turned on, and the a point R3 is turned on, and the relay R11 and the a point R11 are also turned on.

As the relay increasingly R3 is turned on, + 24VDC is applied to the input terminal DIO of the DIO board 13a embedded in the controller 13, and the controller detects this and relay a point R13 as described above. The magnet switch MC2 is turned on by the ON, and the signal from the aging power supply to the test power supply of the power supply 21 is converted from the aging power supply to the test power supply circuit 22 in FIG. Change it.

In this case, the controller 13 is connected to the instruments by a signal applied to the input terminal DI1 as the contact point T1 of the timer T1 operated by the relay a point R11 is turned on. (13b) Communication is performed to read the measured value from the leakage current meter 15 to the controller 13, and a pass / fail decision is made by comparing the inspection reference value.

The leakage current measuring device 15 is a measuring device that measures the current flowing between each of the power supply terminals and the ground terminal when the rated power is applied to the product and transmits the current through the GPIB interface board 13b in the controller 13.

As described above, if the leakage current is passed or failed by the controller 13, in Fig. 7, the + 24VDC voltage is output from the output terminal COMO of the DIO board 13a. ), The contact a (R4) is also turned on to turn on the green lamp (GL) indicating the pass, and outputs an 'OK' indication indicating the pass along with the measured leakage current value on the monitor (11) screen.

However, in the case of failure, the + 24VDC voltage is output from the output terminal COM1 of the DIO board 13a to turn on the relay R5 and its a contact R5 to turn on the red lamp RL indicating the failure and then buzzer. (19) (BZ) is raised, and the display of the 'NG' on the monitor 11 screen.

As described above, when the timer T2 is turned on after the relay R11 is turned on and 4 seconds have elapsed, the timer contact T2 is turned on, and a + 24VDC voltage is applied to the input terminal DI2 of the DIO board 13a. The controller 13 recognizes the power consumption and the input current measured by the power current voltage meter 14 through the GPIB interface board 13b to perform a pass and fail determination.

Here, the power current voltage measuring instrument 14 is a measuring device that measures the power consumption and the input current when the rated power is applied to the product, and measures the power consumption when 85% of the rated power is applied to the product.

As a result of the acceptance and rejection of the measured power consumption and input current as described above, in the case of the pass, + 24VDC voltage is output from the output terminal COMO of the DIO board 13a in FIG. Since R4) is turned on, the a contact R4 is also turned on to turn on the green lamp GL indicating acceptance and outputs an 'OK' indication indicating acceptance with the measured leakage current value on the monitor 11 screen. .

However, in the case of failure, the + 24VDC voltage is output from the output terminal COM1 of the DIO board 13a to turn on the relay R5 and its a contact R5 to turn on the red lamp RL indicating the failure and then buzzer. (19) (BZ) is raised, and the display of the 'NG' on the monitor 11 screen.

Subsequently, when the timer T3 is turned on and the contact T3 is turned on 5 seconds after the relay R11 is turned on, in FIG. 5, the common terminal COM and the 85% terminal of the power supply 21 are connected. When the voltage of 85% of the rated voltage is applied to the product and the timer contact T3 is turned on in FIG. 7, a + 24VDC voltage is input to the input terminal DI3 of the DIO board 13a, and the controller 13 The power consumption voltage and the input current when the 85% power supply is recognized, are read by the power current voltage meter 14, and the pass and fail determination is performed.

As a result of the pass and fail determination, in the case of pass, in Fig. 7, the + 24VDC voltage is output from the output terminal COMO of the DIOM board 13a, and the relay R4 is turned on by this voltage. The green lamp GL, which is turned on to indicate a pass, is turned on, and an 'OK' mark indicating a pass is output on the monitor 11 together with the measured leakage current value.

However, in the case of failure, the + 24VDC voltage is output from the output terminal COM1 of the DIO board 13a to turn on the relay R5 and its a contact R5 to turn on the red lamp RL indicating the failure and then buzzer. (19) (BZ) is raised, and the display of the 'NG' on the monitor 11 screen.

After the relay R11 is turned on, the timer T4 is turned on after 7 seconds, and the timer a point T4 is on and the b point T4 is off, as shown in FIG. It is connected to the power supply switching circuit 22 and the brush 24 from the measuring instrument 15 so that the leakage current measuring instrument 15 measures the leakage current value of the product, and as the timer a point T4 is turned on, the DIO board ( + 24VDC voltage is applied to the controller 13 through the input terminal DI4 of 13a) and the controller 13 reads the leakage current measured by the leakage current meter 15 through the GPIB interface board 13b. Pass and fail judgments are performed.

As a result of the pass and fail determination, in the case of pass, in Fig. 7, the + 24VDC voltage is output from the output terminal COMO of the DIO board 13a, and the relay R4 is turned on by this voltage. The green lamp GL, which is turned on to indicate a pass, is turned on, and an 'OK' mark indicating a pass is output on the monitor 11 together with the measured leakage current value.

However, in the case of failure, the + 24VDC voltage is output from the output terminal COM1 of the DIO board 13a to turn on the relay R5 and its a contact R5 to turn on the red lamp RL indicating the failure and then buzzer. (19) (BZ) is raised, and the display of the 'NG' on the monitor 11 screen.

Measurement and determination data obtained during the course of the inspection process as described above are stored in the database by the controller 13, and in the case of failure even in one inspection process, the relay contact R5 is turned on as described above to drive the conveyor. The motto will be stopped and the product repaired.

As described above, according to the automatic inspection device for the electrical properties of the product on the slat conveyor of the present invention, since the inspection work is automatically performed, efficient and efficient inspection work can be achieved, thereby improving workability and productivity. It is possible to easily manage the information of the test results.

Claims (1)

The monitor 11 which displays various information such as production model, pass / fail determination result, production quantity, number of defects, defect rate, etc., a keyboard 12 for inputting inspection command and various data, and external Built-in DIO board for input / output and GPIB interface board for reading measurement values of the instrument, and control the input of detection signal, lamp and buzzer and line stop switch output according to the command inputted by the keyboard and recall the inspection information. The controller 13 outputs to the monitor 11 and the power current suppression meter 14 which measures the power consumption, the input current and the low voltage starting characteristics of the product when the power is supplied to the product set, and supplies the result to the controller. And a leakage current measuring device (15) which measures the leakage current of the product when the rated power is applied to the product set, and supplies the result to the controller. Relay box 16 which is responsible for signal connection and control with various sensors, lamps, buzzers, and line stop switches, and pallets which sense the presence of pallets and products flowing on the slat conveyor and supply them to the relay box 16. (17), a lamp 18 connected to the relay box 16 to display a test result, a buzzer 19 connected to the relay box 18 to output a test result as an alarm sound signal, and A line stop switch 20 connected to the relay box 16 to drive or stop the conveyor drive motor, a power supply unit (AVR) 21 for supplying power to the product, and control of the relay box 16. And an electric power switching circuit (22) for properly switching the power supply path applied to the product from the power supply (21).