Bending machine

Abstract

The invention relates to a part of bending and forming equipment of a heat exchanger, in particular to a bending machine capable of bending the heat exchanger, in particular to the bending machine capable of adopting a layered bending and forming process on a multi-layer heat exchanger. The bending machine comprises a machine frame, a controller, a rotary roller, a rotary roller driving mechanism, a lower pressing plate and a follower plate, wherein an upper pressing plate is arranged on the rotary roller; the lower pressing plate is parallel to the upper pressing plate; a horizontal lifting platform is arranged in the machine frame; a follower plate guiding mechanism, a follower plate driving mechanism and a clutch device are arranged on the lifting platform; the follower plate can longitudinally feed and can longitudinally follow; and the height of the follower plate can be adjusted. The bending machine has the following advantages that: because of servo bending, the precision is high; the height and the longitudinal position of the follower plate are adjusted and controlled through a servo, so the follower plate is automatically lifted and is automatically, horizontally and longitudinally moved and the positioning is precise; because of layered bending, a force applied to the heat exchanger is reduced and a fin is prevented from collapsing and being crushed; and the whole machine has a simple structure and a reasonable layout, is easy to manufacture and is convenient to operate.

Description

technical field [0001] The invention relates to a part of bending and forming equipment for a heat exchanger, in particular to a bending machine capable of bending a heat exchanger, especially a bending machine capable of forming multilayer heat exchangers by layered bending craft bending machine. Background technique [0002] As a compact heat exchanger, the tube-fin heat exchanger has a wide range of applications in the refrigeration industry. With the technical development of the air conditioning and refrigeration industry, and the further strict control of environmental protection regulations, the requirements for the heat exchange performance of the heat exchange unit itself are more stringent to compensate for the low performance of alternative refrigerants. Therefore, the heat exchanger structure (type of heat exchange tubes and fins) and the related heat exchanger forming process are important factors affecting the heat exchange performance, and are of great signifi...

AI Technical Summary

Problems solved by technology

In this process, the contact stress between the local fins and the bending mold is higher than that of the single-layer heat exchanger, which causes the local fins to be easily crushed after bending, and the tube-fin connection is loose and deformed, thus affecting the heat transfer performance and performance of the heat exchanger. reliability

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