Head case assembly for spiral duct forming host machine

Abstract

The invention relates to a head case assembly for a spiral duct forming host machine, which is used for rolling a strip steel roll material as a base material into a spiral duct shape along a spiral involute track. The head case assembly comprises a head case (1), a molding roller box (2), a speed reducer (3), an upper-and-lower feeding roll (4), a front-and-rear guide plate (5), an upper engagement wheel (6) and a jacking oil cylinder (7), wherein the upper-and-lower feeding roll (4) is arranged in front of the molding roller box (2); the speed reducer (3) is arranged on the lateral side of the upper-and-lower feeding roll (4), and is connected with the upper roll of the upper-and-lower feeding roll (4); the front-and-rear guide plate (5) is arranged on the bottom of the head case (1); a piston rod of the jacking oil cylinder (7) is contacted with the lower roll of the upper and lower feeding roll (4); the molding roll box (2) comprises a box body (2.1), a guide roll (2.2) and a molding roll (2.3), the guide roll (2.2) and the molding roll (2.3) are arranged between the left wall and the right wall of the box body (2.1), and the molding roll (2.3) is arranged in front of the guide roll (2.2). By using the head case assembly, smooth material feeding can be realized.

Description

(1) Technical field [0001] The invention relates to a head box assembly of a main machine of a spiral air duct forming machine. It is widely applicable to take the strip steel coil as the base material and roll it into a spiral air tube shape along the spiral involute track. It belongs to the technical field of pipe making machines. (2) Background technology [0002] Spiral air duct is a new type of round air duct that has appeared recently. Because the area of ​​the circle with the same circumference is larger than that of square and rectangle, and there is no dead angle, it has the characteristics of smooth and beautiful inner wall, high strength, high sealing performance, and convenient construction and installation. Spiral ducts are widely used in central air-conditioning systems, indoor air purification, environmental protection and other industries. [0003] The spiral duct forming machine is a special equipment for manufacturing spiral ducts. Before the present inv...

AI Technical Summary

Problems solved by technology

It mainly has the following disadvantages: the head box assembly of the main engine is not equipped with guide rollers, and the strip steel is prone to deviation from left to right during the feeding process, resulting in the strip steel being stuck

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