Tin soldering machine abnormal tin-discharging monitoring mechanism and method, tin-discharging device and tin soldering machine

Abstract

The invention relates to a tin soldering machine abnormal tin-discharging monitoring method which includes the steps: enabling tin wires and a soldering mouth to be insulated before tin is charged, continuously detecting if the tin wires are conducted with the soldering mouth between start of tin-charging and stop of the tin-charging, and judging detecting results after the tin-charging is stopped. If conduction is achieved, the tin-charging is judged to be normal, otherwise the tin-charging is abnormal. The invention discloses a tin soldering machine abnormal tin-discharging monitoring mechanism which is provided with an insulation mechanism, a detecting mechanism and a judging mechanism, wherein the insulation mechanism is used for insulating the tin wires and the soldering mouth and the detecting mechanism is used for detecting if the tin wires are conducted with the soldering mouth. The invention further relates to a tin-discharging device and a tin soldering machine, the tin-discharging device and the tin soldering machine are with the abnormal tin-discharging monitoring method and the abnormal tin-discharging monitoring mechanism. The tin-discharging device and the tin soldering machine are suitable for being applied in the tin wires with various types, and capable of judging if the tin wires are sent to the soldering mouth and if tin-blocking happens. Due to the fact that as long as the tin-blocking happens at any position of the tin-discharging device, the tin wires can not be sent to the head portion of the soldering mouth, and a non-detection zone not exists. The tin-blocking can be detected. The tin-discharging device and the tin soldering machine are good in instantaneity, high in susceptiveness and low in cost.

Description

technical field [0001] The invention relates to the technical field of soldering of electronic circuit boards, in particular to a monitoring mechanism and method for abnormal tin discharge of a soldering machine, a tin discharging device and a soldering machine. Background technique [0002] In the electronics industry, tin wire is widely used for welding various components and connectors. In order to improve welding efficiency, even in manual welding, automatic tin-discharging welding is applied; in automatic soldering robots, automatic tin-discharging is an indispensable device. In the process of automatic tin discharge, the tin wire is prone to breakage or blockage, especially the tin wire with a small diameter. Therefore, can it be judged whether the tin wire status is smooth or blocked during the automatic tin discharge process? It is very important for automatic tin removal. [0003] At present, the common method in the market is to use a mechanical sensor to detect ...

AI Technical Summary

Problems solved by technology

This structure has the following problems in the automatic tin-discharging device: 1. It increases the complexity of the tin-discharging structure; 2. The sensitivity of the sensor is proportional to the price. If the price is too high, it will not be practically used; if the price is low, the detection sensitivity 3. Since the sensor is mechanically controlled, only when the tin blocking reaches a certain level, the telescopic head moves, and the switch is triggered, can the sensor send out a signal, resulting in tin output control The accuracy is not high, and the real-time alarm of tin blocking cannot be realized in time; 4. Since the sensor is installed at the connection between the tin outlet of the tin outlet and the tin outlet conduit, if the tin wire is blocked before reaching the sensor, the alarm will not be issued, which will affect the follow-up The accuracy of welding; 5. For tin wires of different diameters, it is necessary to replace different sensors or adjust the sensitivity of the sensors, which increases the cost and increases the workload of pre-welding preparations; 6. It can only detect whether there is tin blocking, and It is impossible to judge whether the tin wire has reached the head of the welding tip at the current moment, so it is impossible to judge whether the solder joint that needs to be welded can be welded

These structures all have some common disadvantages, including high cost, troublesome installation and debugging; increased complexity of the tin structure; limited detection range, etc.

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