Curling machine for lower cover of expansion water tank

Abstract

The invention discloses a curling machine for a lower cover of an expansion water tank. The curling machine comprises a rack; a curling platform is fixedly installed on the left side of the top part of the rack; a curling inner pressing wheel is fixedly installed on the right side of the top part of the curling platform; a hydraulic oil cylinder is arranged on the position, located on the right side of the curling platform, on the rack; a piston rod of the hydraulic oil cylinder is connected with a speed reducer; an output shaft of the speed reducer is connected with a curling outer pressing wheel, while a driving end of the speed reducer is connected with a driving motor; the curling outer pressing wheel is a concave wheel; and the wheel width of the curling inner pressing wheel is matched with the groove width of the curling outer pressing wheel. According to the curling machine, the curling platform is arranged, the lower cover is placed at the top part of the curling platform, and a C-shaped structure of the side edge of the expansion water tank is formed with the cooperation of the curling outer pressing wheel and the curling inner pressing wheel, thus solving the problems that an existing curling machine can only uses a stamping+die way and a high-cost and low-efficiency curling way, and the riveting effect is poor.

Description

technical field [0001] The invention relates to the technical field of crimping machines, in particular to a crimping machine for the lower cover of an expansion tank. Background technique [0002] The expansion tank is an important part of the wall-hung boiler and HVAC system. It accommodates the expansion of the system water in the heating system, and also plays the role of constant pressure and water replenishment for the system; therefore, the cover of the expansion tank needs to have a large Strong airtightness. In the production process of the existing expansion tank, the curling is completed manually through a punching machine and a mold, resulting in poor riveting effect of the upper and lower covers of the expansion tank and low work efficiency. high cost. Contents of the invention [0003] The object of the present invention is to provide a crimping machine for the lower cover of the expansion tank, which has the advantage of being able to perform C-shaped struc...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a crimping machine for the lower cover of the expansion tank, which has the advantage of being able to perform C-shaped structure crimping on the lower cover of the expansion tank, so that the riveting effect of the upper and lower covers of the expansion tank is good, and solves the problem of existing problems. The hemming process is cumbersome, the production cost is high, and the riveting effect is not good.

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