The roller replacement operation of the welded pipe machine not only takes time, but also requires high manpower. It is not very convenient to operate. In order to adapt to the development needs of the welded pipe industry, many welded pipe machine manufacturers are now trying to design welded pipe machines without roller replacement. However, this is not yet feasible. Therefore, the second priority is whether it is possible to achieve a design without roller replacement in the forming section of the welded pipe machine. Let's take a look at this situation.

The design status of the forming section of the welded pipe machine without changing the rollers currently has two states: one is to only replace the first set of rollers and the welding roller, which is very common; The second is to adjust the spacing between the horizontal upper and lower rollers through the FF molding method to achieve the operation without changing the rollers. Regardless of the design, there are operational drawbacks.

Firstly, let's take a look at the design of only replacing the first set of welded pipe molds and the closed mouth welded pipe molds before welding. This can only be applied to a certain size range of operations, such as the 133 and 159 molds. If the spacing is too large, the operation will be more difficult because the width of the raw material steel coil will be relatively large due to different pipe diameters, and it is not suitable for small pipes.

Next, let's take a look at the FF forming method, which also has this problem. Not all pipe diameters are universal, and the design of welded pipe molds has size limitations. Therefore, this design can be used for the production of large-diameter pipes, but not for small-diameter pipes. However, the FF forming method is much more convenient than replacing the forming mold, but the design cost is also high.

So overall, the design of the forming section of the welded pipe machine without changing the rollers is not yet mature, at least it cannot achieve all pipe diameter ranges, only used in the production of large-diameter welded pipes, and the cost is not low. What do you think about it specifically? Welcome to discuss together.

Key words:welded pipe machine

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