Manufacturing method of integrated square fire-resisting damper valve buckle body molding and rolling forming device thereof

Abstract

The invention provides a manufacturing method of integrated square fire-resisting damper valve buckle body molding, comprising the following process steps: carrying out blanking on a complete board with a plate shearing machine according to the ordered size of the valve body and cutting into a rectangular panel veneer; carrying out working procedure processing like corner cutting, notching, punching and the like on the panel veneer with a press tool; performing bending operation of the flange edge at the two sides of the panel veneer with a bending machine; carrying out molding operation on the square frame body with a valve body molding device; and finally adopting welding or riveting operation at the seam position to finish the processing of the valve body frame body in the end. The invention has the following advantages: the method only needs shearing the board once, and the manufacturing can be completed through press working; compared with the current board-shearing and tailor welding four times, the method in the invention leaves out a plurality of working hours and reduces the disadvantages of size deformation; the total processing time of the frame body can be saved by 59.5%, thus the cost of the valve body is substantially lowered; the integrated board is under press working with almost no deformation; and welding is only carried out on the joint at one side, and the generated air leakage rate of the weld porosity is reduced to 25% of the original air leakage rate.

Description

technical field [0001] The invention relates to a method for manufacturing a frame of a square fire damper used for connecting air ducts and rolling forming equipment thereof. It belongs to the technical field of HVAC products. Background technique [0002] In the current technology, the frame body is welded by four-sided plates or profiles, which will lead to the following defects: [0003] The blanking size of the material is large, in order to prevent confusion, the management cost increases during mass production; the four-piece tailor welding, the processing size at the seam is deformed, and the processing cost also increases; the four-piece tailor welding, the processing time is high, and the production cost increases Large, not easy to mass-produce. Contents of the invention [0004] The present invention proposes a manufacturing method for forming an integrated square fire damper frame and rolling forming equipment thereof, aiming to overcome the defects existing...

AI Technical Summary

Problems solved by technology

[0003] The blanking size of the material is large, in order to prevent confusion, the management cost increases during mass production; the four-piece tailor welding, the processing size...

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