How to construct C Z purlin roll forming machine

:2015-05-08 10:05:57 :Technology Information:998

One of the roll forming machines used for industrial steel manufacturing is the c z purlin roll forming machine, technically called the C & Z roll forming machine. The C and Z are given due to the shape of the steel that is developed after the cold forming. This machine is used to form steel sheets into hard metals that are mostly used as roofing frames.
What is a c z purlin roll forming machine?
This is a roll forming machine that is used to make several purlin in a single machine. The only thing needed is that the handler of the machine will be required to change the roller, in order to give out different products. The difference in the end product is that the purlin will have either the C shape or the Z shape, mostly. To achieve this, the handler will be required to alter the roller. The machine will ensure that the purlin is rolled and that they do not bend afterwards, also, they become easier to install. It is a single machine, but it consists of several parts and accessories that enable it to work perfectly.

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Features and Mechanism
This type of roll forming machine is very complex, with regard to its features and specifications. To begin with, it has a coil sheet pulling tools, a decoiler, a punching, cutting and hydraulic press as well as a control panel. In addition, there is also the roll forming section. Here is a look at the common features and how the c z purlin roll forming machine works;
• Standard specifications;
It will have a speed of about 4 meters/minute, has about 12 vertical stations, 14 forming stations and it can take a sheet width of up to 350mm. The machine can form CRCA strips of up to 3mm. The machine will measure about 6300mm, by 1200mm by 1000mm. Basically, it is a long machine that needs professionalism when operating it.

• The mechanism;
This roll forming machine has been designed and it has stages, which entail the roll forming process. It starts at the entry gate, where the purlin is fed into the machine. They are inserted into the machine as sheets, then they are rolled into specific shapes. After the entry gate, is the main base, which is an engineered section that is corrugated to limit the bending of the sheets. There are holes that are threaded, which help to hold the strands in position. There is the station, which is also called the mill stands, which are placed on the machine bed. The bed will also be aligned, for the sake of guiding the sheets through the station. There are forming heads that have fitted housings and a board housing that is a slide-type. The stands have been designed to position the shafts that are placed on the taper bearings, which enhances stability. The bearings on the top shafts have been enclosed in bearing blocks that are in the form of a cartridge. However, the bottom shaft bearings have been enclosed housings inside the machine. There are also the bottom arbors that are strongly fixed, though the top arbors are flexible and they can move vertically in any direction. When the sheet passes through the mill stands, they will be pressed and shaped in the required shapes. They then pass through the cutting unit, which finalizes the process.

The entire process of rolling and cutting the purlin is complex, but only in the mechanism. For the handler of the machine, all they will need to do is feed in the sheets and set the machine accordingly. Depending on the style of purling that they need, the one handling the machine will need to change the roller, in order to achieve a C or a Z sections.

Applications
The end product of the purlin will be used in many areas, including the roofing frames and the wall beam. The C & Z roll forming machine mean that the end product will have a Z shape and a C shape. For the C-products, they have flanges that are equal. They can also be applied on unlapped constant spans and single spans in specific buildings, especially the multi-bay structures. The C-section is a channel section that has flange stiffeners, though itmight also not have them. The C-shaped purlin has a steady shape that stands freely. This shape encourages easy storage and handling. Also, it is easily modified for use in medium and small sized structures, especially in the framework of a building. The Z-shaped purlin has a narrow flange and a broad flange. They are also referred to as the point symmetric sections, which have the shape of the letter Z. This design allows the sections to fit in comfortably, meaning that they will not overlap. For the Z-purlins that have similar depth and varied thickness, they can be staged in any grouping. The purlins that have been lapped with thegirts will form a continuous line in the building, which helps to limit the costs of construction.

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Basically, the Purlin in the steel construction refers to the framing of the roof, which run parallel to the eave of the building. Also, they are used to support the sheeting or decking of the roof. These purlins are held in place by the walls or the rafters. The Z-shaped purlins are the most used to allow flexibility in the spans. In the steel industry, the structural shapes are allocated with representatives designations. This helps to make it more convenient and easier to draw the structure on a document. Basically, the term purlins in the steel manufacturing of buildings are given to the roof, while the term girts mean the walls. They are mostly passed through the cold forming machines, in order to achieve the Z or C sections. They can also be mill rolled, which is specifically for acquiring the C sections. The Z sections may be nested to be used for the transportation packaging. Also, they are used in buildings to offer support to establish a beam that is continuous, transversely on the supports. With the c z purlin roll forming machine, the C and the Z sections are developed to factor the construction of roofing frameworks.

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