Horizontal flange blank hot coiling machine

Abstract

The invention relates to a horizontal flange blank hot coiling machine which comprises a horizontally installed mould chassis, wherein a central shaft of the mould chassis is vertically installed in a bearing seat on a stand and is connected with a power machine through a transmission mechanism, a disc-shaped curled mould which has a same axial line with the central shaft is fixedly or movably installed on the upper end surface of the mould chassis, the mould chassis is provided with a blank end clamp and spiral cushion blocks which have a certain amount and gradually heighten, and a flat steel guide device is arranged at one end of the stand. The invention ensures that the blank is curled into a spiral shape with high speed and stable quality, and greatly improves the production efficiency. The positions of a guide wheel and a feeding roller can be changed, and a jacking mechanism can regulate the position of a jacking stand to be matched with a stroke of a jacking hydraulic cylinderand can be matched with downhand welding flanges with various specifications to make various flanges with small sizes and large sizes. The invention has the advantages of simple and compact structureas well as rapid and convenient operation and greatly enhances the automation degree.

Description

1. Technical field: [0001] The invention relates to a special equipment for making flanges, in particular to a horizontal flange blank hot coiling machine. 2. Background technology: [0002] With the rapid and stable development of the economy, the transportation projects of various fluid pipelines in my country are becoming more and more extensive and common. Therefore, the application of various flat welding flanges for supporting pipelines is also essential, and the demand will also become larger and larger; in addition , with the continuous investment in large projects such as South-to-North Water Diversion and West-to-East Gas Transmission, large flanges will also occupy a considerable market position! [0003] The flat welding flange is to make the flange blank first, and then finish the flange blank into a finished flange. Therefore, the precision of the blank determines the processing cost of the flange to a large extent. At present, the production of flange blanks m...

AI Technical Summary

Problems solved by technology

At present, the production of flange blanks mainly adopts forging forming and cutting forming. These two production methods have common disadvantages: first, the processing is rough, the geometric size error is large, and it is difficult to control, which increases the labor intensity of subsequent finishing. and processing costs, reducing the yield; second, low production efficiency

In addition, some manufacturers use cold rolling to produce flange blanks. Although the production efficiency has been improved, the straight line at the beginning and the end cannot be eliminated, which is easy to produce ellipticity, and the processing volume is large, which also increases the production cost.

Only by cutting it off, the utilization rate of raw materials is very low, the production cost is also high, and it can only be produced in a single piece at a time, and the efficiency is still not high

[0004] In addition, the "flange blank hot coiling machine" of the patent number 200820148917 discloses a vertical flange blank thermal coiling machine. The machine will become too large, the center of gravity of the whole machine will increase, the stability will be poor, and the feeding and unloading will become difficult and difficult to operate, which will affect the production efficiency and production cost

Images