Automatic folding principal machine for square tube and automatic folding machine thereof

Abstract

The invention discloses an automatic flanging principal machine for a square tube and a flanging machine. The principal machine comprises a machine base, wherein a guide seat is fixed on the machine base; a core mold fixing block is slidably installed on the guide seat, a plurality of core molds with different specifications are fixedly installed on the core mold fixing block, and upper notches and lower notches are separately formed in the shoulders of the upper surface and the lower surface of each core mold, and the core mold fixing block is driven by a mold changing drive device to slide linearly, so that one of the core molds on the core mold fixing block is accurately stayed in the flanging station. An upper punch plate and a lower punch plate are separately and vertically and installed on the positions, above and below the core mold of the flanging station, of the machine seat in a sliding mode, the upper punch plate and the lower punch plate are correspondingly matched with thepositions of the upper notch and the lower notch, the upper punch plate is driven by an upper punch power device, the lower punch plate is driven by a lower punch power device, and the machine seat is further provided with an auxiliary pressing device for upper and lower auxiliary pressing the square tube. According to the automatic flanging principal machine, the core molds can be switched according to the specifications of the square tubes, and flanging requirements of the square tubes of various specifications are met.

Description

technical field [0001] The invention relates to an automatic edge folding machine, and also relates to an automatic edge folding machine. The automatic edge folding machine and the automatic edge folding machine are used to fold the ends of rectangular pipes (square pipes). Background technique [0002] The pipe folding machine is a device used to punch the upper and lower parts of the pipe to form a folding edge. The folding mold mainly includes an upper punch, a mandrel and a lower punch. The upper and lower parts of the mandrel are equipped with The groove, the upper punch and the lower punch correspond to the notch positions of the upper and lower parts of the mandrel respectively. The upper punch hits the upper plate from top to bottom to form a downward fold, and the lower punch goes from bottom to top. Impact the lower panel to form an upward hem. However, the current square tube folding machine has the following deficiencies: 1. The mandrel of the current square tub...

AI Technical Summary

Problems solved by technology

However, the current square tube folding machine has the following deficiencies: 1. The mandrel of the current square tube folding machine can only fold square tubes of a single specification, so that when folding square tubes of different sizes, multiple units must be prepared. For square tube folding machines of different specifications, either the mandrel is disassembled and the mandrel is replaced. Obviously, the first method increases the cost, and the method of disassembling and replacing the mandrel needs to re-adjust the parameters of the hemming, which is cumbersome, and the mandrel Disassembly and installation are time-consuming and labor-intensive, and installation errors are prone to occur, which affects the accuracy of folding

[0003] 2. The mandrel of the current square tube folding machine is frequently impacted by the upper punch or the lower punch, so the mandrel may be deformed after long-term use, especially for some smaller or flatter square tubes When the edge is folded, the deformation of the mandrel is more obvious, which increases the failure rate of the square tube edge folding machine and shortens the service life

[0004] 3. The efficiency of the current folding machine is relatively low. It is necessary to wait for the pipe to be folded before loading the next pipe, and the interval is long.

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