Self-reset magnetic latching relay production line and production process thereof

Abstract

The invention belongs to the technical field of relay production, and particularly relates to a self-reset magnetic latching relay production line and a production process thereof. Protection hoods fixed in a screw joint manner are arranged on the outer sides of glue injection heads, each protection hood is of a spiral spring structure, and the bottoms of the protection hoods are flush with the bottoms of dispensing needles. Auxiliary cotton pads in detachable connection are arranged on the inner sides of the bottom ends of the protection hoods. When the dispensing needles move up and down inmounting racks along with driving of lifting air cylinders, the protection hoods can be compressed to the outer sides of the glue injection heads along with pressing down of the dispensing needles during pressing down. When the dispensing needles ascend, the protection hoods lose pressure of outer workpieces, the protection hoods rest to the initial state, the bottoms of the protection hoods are flush with the bottoms of the dispensing needles, and therefore residual glue generated to the outer sides of the dispensing needles due to dispensing glue overflowing is cleaned away and wiped, and the situation that dispensing needle use of the next time is influenced by glue overflowing curing on the dispensing needles is avoided. When the dispensing needles are not used, the protection hoods covering the outer portions of the dispensing needles can achieve a good protection effect on the dispensing needles, the situation that the dispensing needles suffer from outer impacting to deform is avoided, and use safety and stability of the dispensing needles are increased.

Description

technical field [0001] The invention belongs to the technical field of relay production, and in particular relates to a self-resetting magnetic latching relay production line and a production process thereof. Background technique [0002] The magnetic latching relay is a new type of relay developed in recent years, and it is also an automatic switch. Like other electromagnetic relays, it can automatically switch on and off the circuit. The difference is that the normally closed or normally open state of the magnetic latching relay is completely dependent on the action of the permanent magnet, and the switching state of the relay is triggered by a pulse electric signal of a certain width. When the contacts of the relay need to be opened or When in the closed state, it is only necessary to excite the coil with positive (reverse) DC pulse voltage, and the relay completes the state transition of opening and closing in an instant. Usually, when the contact is in the holding sta...

AI Technical Summary

Problems solved by technology

[0003] The dispensing needle structure of the dispensing machine used in the current magnetic latching relay production line is relatively simple, and in order to ensure the accuracy of dispensing and reduce the overflow of glue, the outer diameter is thinner and the overall shape is slender. It is easy to deform when the external force collides, and there will be residual glue in the dispensing needle after dispensing, and it will solidify if it is not used for a long time, which will affect the stability of the next dispensing glue

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