Improved technology and device for extensible door connecting pipe end edge opening sealing machining

Abstract

The invention relates to an improved technology and device for extensible door connecting pipe end edge opening sealing machining. The improved technology for extensible door connecting pipe end edge opening sealing machining is achieved through the improved device which comprises a notch punching die and a squeezing forming die, wherein the notch punching die is used for conducting punching on a pair of opposite inner side faces of a pipe opening of a connecting pipe, the squeezing forming die is used for conducting the bending operation on an opening sealing piece on the pipe opening, undergoing the notch punching, of the connecting pipe, and the notch punching die and the squeezing forming die are arranged according to the position sequence of the procedures. According to the technology, the opening sealing can be firmly conducted on the pipe opening, grinding is not needed, the production cost can be effectively reduced, the competitive power and the market share of the product can be enhanced, and the source consumption is lowered for the society.

Description

[0001] technical field [0002] The invention relates to a manufacturing process of a sliding gate fitting, in particular to a manufacturing process of a connecting pipe fitting of a sliding gate. Background technique [0003] In many places that have certain requirements for anti-theft, various anti-theft doors will be installed to achieve anti-theft effects. In occasions, people often choose to pull the gate. At present, the structure of the gate usually includes a chute frame with a chute relatively fixed up and down, and grid tubes arranged vertically and parallel inside the chute frame. The connecting pipes are hinged to each other in the middle, and the two ends are respectively hinged to the grid pipe, which can be expanded or folded telescopically. Therefore, in the process of using the gate, it can not only play a good anti-theft effect, but also keep a relatively high temperature. The large gap ensures the lighting requirements, and at the same time has a good ven...

AI Technical Summary

Problems solved by technology

At present, people often choose the sliding gate, and the connecting pipe used usually adopts S-shaped structure, which not only has a good anti-theft effect but also has certain aesthetics. At present, when manufacturing the most commonly used S-shaped connecting pipe with a rectangular cross-section, the process After unwinding the steel strip, use the welding pipe making machine to make the steel strip into a round tube, and then squeeze the round tube into a square tube with a rectangular cross-section, then cut it into the required length, and then make the square tube The two ends of the pipe are welded and sealed with metal sealing sheets, and then the welded seal is deburred and polished, and then the square tube is pierced (hinge hole) to complete the production of the entire S-shaped connecting pipe. At present, this production process exists The disadvantages are as follows: when the two ends of the existing square tube are welded and sealed, welding equipment is required and labor-intensive. In addition, the welding process is easy to cause deformation of the seal and more burrs. Therefore, it is necessary to Polishing and grinding for deburring will be done in the later stage. This process will consume more manpower, resulting in a sharp increase in production costs, especially today as labor costs are getting higher and higher, causing the company's profits to remain at a low level.

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