Purlin molding machine and punching device thereof

Abstract

The invention provides a punching device. The punching device comprises at least four groups of punching modules. Each group of punching module comprises a frame, a punching oil cylinder which is arranged on the top of the frame, an upper punching die which is arranged at one end of a plunger of the punching oil cylinder, a pressing plate, and a lower punching die which is arranged at one end of a punching head of the upper punching die, wherein a travel switch which is used for controlling the opening and closing of the punching oil cylinder is arranged on the punching oil cylinder; the bottom of the upper punching die is provided with the punching head which extends from the top of the upper punching die to the bottom of the upper punching die; the pressing plate is arranged between the plunger and the upper punching die and is connected with the plunger and the upper punching die; and a punching hole which is matched with the punching head is formed in the lower punching die, and the distance between the upper punching die and the lower punching die is more than or equal to the thicknesses of purlins which are required to be punched. The quantity of the punching oil cylinders is increased, namely the quantity of punched holes in every punching process is increased, and then the total punching times of the purlins are reduced, so the pause time caused by punching is shortened; and therefore, the production efficiency of the purlins is improved. The invention also provides a purlin molding machine.

Description

technical field [0001] The present invention relates to the technical field of processing and manufacturing steel structures in building materials machinery, more specifically, to a punching device, and also relates to a purlin forming machine with the above-mentioned punching device. Background technique [0002] With the development of modern industry, urban construction is getting faster and faster, and there are more and more large-scale buildings. The specifications of purlins used in the construction industry tend to be standardized and serialized, and the scope of their application is gradually expanding and gradually extending. Used in various support systems. [0003] Purlin forming machine is a special equipment for processing purlins in steel structure materials for construction. It is mainly composed of hydraulic unloading machine, leveling device, punching device, forming device, cutting device, hydraulic station, etc. The forming process of the steel plate use...

AI Technical Summary

Problems solved by technology

[0004] The punching device of the traditional purlin forming machine includes 2-3 sets of punching cylinders. The punching process can only punch one row of holes at a time. The pause time caused by the hole is significantly increased, which reduces the efficiency of subsequent forming, thereby reducing the production efficiency of purlins

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