Automatic airduct forming device

Abstract

The invention discloses an automatic airduct forming device. A supporting plate is fixed at the top of a frame, and a turnover plate is hinged to one side of the supporting plate. A rectangular through groove is formed on the turnover plate, a slide block is sleeved in the rectangular through groove in an insertion mode, an inner thread sleeve is arranged in the middle of the rectangular through groove, a lead screw penetrates through a through hole to be screwed in the inner thread sleeve, and the top end of the lead screw is hinged onto the slide block. An oil cylinder is fixed on the bottom surface of the slide block, a push rod of the oil cylinder extends out of the slide block and penetrates through a central hole of a rotary plate fixed on the upper plane of the slide block, an inverted cone frustum is fixed at the upper portion of the rotary plate, an annular sleeve formed by at least four arcs is arranged on the rotary plate, a central through hole in a shape of an inverted cone frustum is formed in the center of the annular sleeve, and the outer wall of the cone frustum abuts against the inner wall of the central through hole. According to the automatic airduct forming device, circular degree of a cylinder during flanging is ensured by expanding the inner annular sleeve at the bottom of the inner wall of the cylinder, and production quality of the cylinder is improved. Furthermore, automatic cylinder positioning and fixation is adopted, and therefore, the automatic airduct forming device is high in automation and efficiency.

Description

Technical field: [0001] The invention relates to the technical field of ventilator equipment, in particular to an automatic spinning machine for flanging the air cylinder of the ventilator. Background technique: [0002] Existing ventilators, especially axial flow fans, are generally composed of a fan cylinder, a motor and an impeller, and both ends of the fan cylinder are formed with outwardly extending folds, which are generally knocked manually or by semi-automatic equipment. For flanging, such as a kind of air cylinder flanging machine of Chinese patent CN2782252Y and a kind of semi-automatic air cylinder flanging machine of Chinese patent CN201841196U, it all needs to be pressed and flanged by pressing rollers, and at the same time, its cylinders all pass through the outer wall. The guide roller rotates, and there is no sleeve in the center to ensure the pressure on the inner wall of the cylinder, so that the roundness accuracy at the flanging position of the cylinder d...

AI Technical Summary

Problems solved by technology

[0002] Existing ventilators, especially axial flow fans, are generally composed of a fan cylinder, a motor and an impeller, and both ends of the fan cylinder are formed with outwardly extending folds, which are generally knocked manually or by semi-automatic equipment. For flanging, such as a kind of air cylinder flanging machine of Chinese patent CN2782252Y and a kind of semi-automatic air cylinder flanging machine of Chinese patent CN201841196U, it all needs to be pressed and flanged by pressing rollers, and at the same time, its cylinders all pass through the outer wall. The guide roller rotates, and there is no sleeve in the center to ensure the pressure on the inner wall of the cylinder, so that the roundness accuracy at the flanging position of the cylinder decreases when the cylinder is flanging, that is, the edge will be deformed, which greatly affects the turning of the cylinder. The quality of the edge, which affects the overall quality of the fan produced by it

Images