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Profiled in Rolling Machines

Rolling machines and special devices are widely used in the construction industry.

These machines enable the processing of closed profiles, semi-closed and open in any way.

profiling on these machines and devices consist of the gradual transformation of a flat strip in a profile through the continued displacement of a semi finished a pair of rollers to another.

The rollers are placed in pairs on the same plane, or in different planes, usually vertical or horizontal, and rotate at the same peripheral speed. The geometric shape of the rollers correspond to the profiles to form. The active surface of each roller pair is conjugated profiles. Its configuration in an axial section, is similar to that of a male and the active plate forming a die for this profile.

The machines and devices are equipped with rollers rolling primary, secondary rollers and guide mechanisms. The primary rollers are placed in the vertical plane, with horizontal axes of rotation., The auxiliary rollers made additional bending can not be executed by the main rollers.

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progressive bending Flor

Before you can design the rolls, determine the appropriate number of steps and rolled. After calculating the estimated width of the strip can be developed using the straight lengths flowers and bows

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strip width calculation

estimated calculation of the width of strip:

The most common problem associated with the roller design is the prediction folding reaction of the material during rolling.

When calculating the width of the band, you should consider first the appropriate K factor or bending allowed. Several factors contribute to the permitted bending, such as the type of material and the yield stress and profile features like 180 degrees and folds of the rolling development techniques.

generally should use the maximum thickness in the range of gauge.

For steels with yield stress of 35 to 50 Kbps, angles near 90 ° and between radio and 5t 1t bending

sometimes must modify the width of the strip when you test the material.

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Basics roller design trainers:

Each time you start the design process rollers Dene consider the following:

• The flat profile, with all well-defined dimensions. Develop


• bending progression, or flower of the profile.


• drafting and design tool rolled around the flower pattern.
  

also must know the characteristics of the machine Rolling:

• Diameter of Rolling machine axes ratio


• upper and lower shafts


• vertical distance between the center


• Distance

horizontal
• oc maximum diameter lower roller