Automatic tube insertion machine and process for condenser and evaporator fins of air conditioner

Abstract

The invention relates to an automatic tube insertion machine and an automatic tube insertion process for condenser and evaporator fins of an air conditioner. The automatic tube insertion machine comprises a machine frame, a U-shaped tube feeding and positioning device, a fin group feeding and positioning device and an automatic guide pin alignment and circulation feeding device, wherein the U-shaped tube feeding and positioning device, the fin group feeding and positioning device and the automatic guide pin alignment and circulation feeding device are arranged on the machine frame in sequence from left to right. According to the principle of the tube insertion machine, U-shaped tubes are positioned and stacked by using the U-shaped tube feeding and positioning device; a fin group is positioned by using elongated conical guide needles and a positioning baffle, and moves to a first station through a movement platform; the U-shaped tubes are inserted through profiling tube pushing mechanisms and guide pins; after tube insertion is completed, the guide pins are pulled out by using the automatic guide pin alignment and circulation feeding device and are aligned on an alignment baffle; after tube insertion is completed at the first station, the movement platform operates the fin group to a second station, and motions at the first station are repeated until the tube insertion operation of the fin group is completed.

Description

technical field [0001] The invention relates to an automatic intubation machine for fins of an air-conditioning condenser and an evaporator and an automatic intubation process thereof, belonging to the technical field of air-conditioning condensers. Background technique [0002] The air conditioner condenser and evaporator are used in the heat exchange system of the air conditioner and are the key components that affect the heat exchange capacity of the air conditioner. Air conditioner condensers and evaporators are assembled from aluminum foil fins, U-shaped tubes, U-shaped elbows, end plates, inlet and outlet pipes, etc. Double-row condensers are commonly used in air-conditioner external units. [0003] Air-conditioning U-shaped tubes are usually made of copper or aluminum, with a common diameter of 7mm and a wall thickness of 0.23mm. The bending radius of the formed U-shaped tube is less than 15mm and the length is greater than 800mm. The disc-shaped copper tube becomes ...

AI Technical Summary

Problems solved by technology

Due to the structural characteristics of the fin set and U-shaped tube, defects such as fin set deformation, U-shaped tube breakage, skewing, and jamming often occur during the intubation process. Therefore, higher requirements are placed on the coordination of human operations, and Only one U-tube can be inserted at a time

Manual intubation has many problems such as low intubation efficiency, unstable quality, high scrap rate, and high labor costs.

[0006] The processes of forming U-shaped tubes, finned tubes, and inserted U-shaped elbows of air-conditioning condensers and evaporators are independent manual production lines. The continuity and coordination of production are not enough, and the productivity per unit area is low. The tube machine needs to consider the high degree of automatic assembly line operation requirements of the condenser and evaporator production line to realize the continuous, rhythmic operation and accumulation of products.

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