Heat exchanging tube assembling apparatus for heat exchanger and assembling method thereof

A heat exchanging tube feed apparatus for a heat exchanger for taking out one by one a plurality of heat exchanging tubes each having a U-shape in an outer appearance and arranged in parallel with each other and feeding the tubes in one direction, comprising:

• push means for pushing out the heat exchanging tubes;
• a push-out cylinder for driving the push means for pushing out the heat exchanging tubes;
• a grooved roller supporting one tube positioned to a lower side of the tubes from a lower side thereof;
• a link mechanism supporting the grooved roller;
• and
• cylinder means for driving the link mechanism vertically and horizontally and taking out sideways the tube supported by the grooved roller,
• wherein said grooved roller for supporting the tube from the lower side thereof and said link mechanism for supporting the grooved roller are supported so as to be rotatable by a shaft at a tube taking-out position and usually disposed at the tube taking-out position by a spring and when a U-shaped curved portion of the U-shaped tube passes at the tube insertion time, said grooved roller and said link mechanism are operated to escape in a tube inserting direction through the shaft.