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Delayed alarm device and PCBA surface mounting method

A technology of delay alarm and delay switch, applied in the direction of alarms, electrical components to assemble printed circuits, instruments, etc., can solve the problems of inability to transmit in time, slow operation, and scrapped PCBA residence time.

Inactive Publication Date: 2017-05-31
NANTONG COSHIP ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a delay alarm device to overcome the slow operation or other abnormalities in the AOI test in the existing SMT electronic manufacturing technology. The PCBA is still being transmitted backwards continuously, and the personnel fail to find it in time, which will cause the PCBA to stay in the furnace for too long, resulting in scrapping at high temperature and failure to transfer in time, resulting in board collision, and finally causing the technical problem of PCBA scrapping

Method used

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  • Delayed alarm device and PCBA surface mounting method

Examples

Experimental program
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Effect test

Embodiment 1

[0010] Embodiment 1 The controllable switch module adopts an electromagnetic relay, and the delay switch module adopts a delay switch with adjustable delay time. The parameters of the delay switch are: input voltage: DC24V; operating current is less than <50mA; output current : 1A, output voltage: equal to the input voltage, adjustable time range: 0-99 seconds. The induction module adopts a photoelectric sensor, and the Japanese Yamatake model is specifically selected as hp300-d1, the alarm module adopts a buzzer, and the power module adopts an AC / DC power module. The AC / DC power supply module is connected to 220v mains, outputs 24V, and is connected to the delay switch through the electromagnetic relay. When the photoelectric sensor senses that the PCBA board is stuck for a long time, the photoelectric sensor responds and outputs 24V voltage to the control terminal of the electromagnetic relay. , the switch terminal of the electromagnetic relay is turned on, thereby triggerin...

Embodiment 2

[0011] Embodiment 2, the controllable switch module adopts an electromagnetic relay, the delay switch module adopts a delay relay, and the induction module adopts a photoelectric sensor, specifically selects the Japanese Yamatake model as hp300-d1, and the alarm module adopts an indicator light, so The above power module adopts AC / DC power module. The AC / DC power supply module is connected to 220v mains, outputs 24V voltage, and is connected to the delay relay through the electromagnetic relay. When the photoelectric sensor senses that the PCBA board is stuck for a long time, the photoelectric sensor responds and outputs 24V voltage to the control terminal of the electromagnetic relay. , the switch end of the electromagnetic relay is turned on, thereby triggering the delay relay, and the delay relay starts counting down within the set time. When the timing reaches 00:00, the delay switch is turned on, and the indicator light alarms; After that, the photoelectric sensor stops o...

Embodiment 3

[0012] Embodiment 3 The PCBA surface mount method based on the time-delay alarm device, the method includes the process steps: use the cache equipment between the reflow furnace and the AOI detection equipment to connect back and forth to cache the PCBA, and the sensing module is fixed on the Between the reflow furnace and the cache device to sense whether the PCBA is stuck, when the PCBA is stuck, the sensing module responds, the sensing module outputs a control voltage to supply power to the controllable switch module, the controllable switch module is turned on, and the power module supplies the delay switch module power supply, the delay switch module is turned on according to the preset time, so that the alarm module starts.

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Abstract

The invention discloses a delayed alarm device. The delayed alarm device comprises an induction module, a power supply, a controllable switch module, a delayed switch module and an alarm module, wherein the input end of the power supply module is used for being connected with electric supply, and the output end of the power supply module is connected with one switch end of the controllable switch module; the other switch end of the controllable switch module is connected with the delayed switch module; the delayed switch module is connected with the alarm module; the output end of the power supply module is connected with the input end of the induction module and supplies power to the induction module; the output end of the induction module is connected with the control end of the controllable switch module to control the switch ends of the controllable switch module to be switched on or off, so that the technical problems of PCBA scrap caused by high temperature when the PCBA stays in a furnace for too long time and caused by board collision when the PCBA cannot be transmitted in time are solved; and when the PCBA board is transmitted normally, the controllable switch module is switched off and the alarm module is powered off.

Description

technical field [0001] The invention relates to SMT electronic manufacturing technology, in particular to a delay alarm device and a PCBA surface mount method based on the delay alarm device. Background technique [0002] The SMT electronics manufacturing industry currently widely uses connection tables to link between production lines / equipment and equipment, mainly for PCB transmission, buffering, inspection, testing, etc. SMT widely uses a connection table or a plate storage machine between the reflow furnace and the AOI testing equipment to cache the PCBA. Because the reflow furnace transportation is a cyclical operation that cannot be stopped, such as slow operation or other abnormalities in the AOI test, the connection station or board storage machine cannot meet the buffer requirements, but the reflow furnace is still continuously transporting PCBA backwards, and personnel cannot timely It is found that this will cause the PCBA to stay in the furnace for too long and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/00H05K3/34
CPCG08B21/00H05K3/3494H05K2203/043
Inventor 赖春根张怀稳张鹏黄俊伟
Owner NANTONG COSHIP ELECTRONICS
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