Pipe bender or machine for rolling a profile pipe with your

Acquisition of a private house or a country plot is rarely associated with the desire to spend the weekend passively. It will take quite a bit of time and a greenhouse covered with polycarbonate will appear on the plot, and a fancy visor will be installed above the veranda of the house, which can protect against raindrops and the scorching sun.

The framework for such important and necessary structures becomes the framework created from bent shaped tubes. Well, in order to get a bend of a given radius and shape, a pipe bender is needed. In this article we will talk about how to make a similar machine for rolling pipes, without which the home master can not do.

What is a pipe bender and why is it necessary?

A machine for rolling a profile pipe or pipe bender is a technical device that belongs to the tools and mechanisms used to work with rolled metal products. With it, you can easily bend the profile of the usual pipe materials according to a given radius. Its main advantage is the ability to bend any number of products with the same radius.

Note! Bent pipes can be used for the installation of pipelines transporting hot or cold water, as well as in the creation of frames of various types and shapes, which are often used in construction.

Many wonder why trugobib is needed. It would seem to strengthen one end of the pipe and pull after another. But in fact, not everything is so simple.

This method will lead to the following consequences:

1. The inability to control the radius;
2. By bending the product in this way, you will create a stress concentration zone, thereby lowering the strength of the structure;
3. Reduced design life.

The pipe bender is simply necessary for the home craftsman, so for many there is an acute question about what the price of such a machine is or it is wiser to make it with your own hands.

How to choose?

When acquiring any instrument for his own use, each master should be guided by the principle of his reasonable need.

Council The tool with which the pipes are rolled must properly perform its functions, without requiring additional costs from its owner.

Criteria for choosing a mechanism of this kind:

1. Type of drive. The choice is made depending on the dimensions of the pipes, the expected amount of work and the intensity of use of the tool;
2. Maximum geometric parameters of the processed profile products;
3. The principle of operation of the machine, depending on the specifics of the operations performed.

Another important factor is the size of the machine itself. Based on the location on the desktop or in a separate corner, you can choose a stationary multi-tool.

Tube bending device

The main purpose of this type of tool is the rolling of a shaped pipe, i.e. giving the desired shape to the blank.

The most common among home craftsmen is exactly the three-roller version of the machine with a manual drive type. Such a unit is a triangular design of three rollers equal in width to the cross section of the workpiece.

The rollers located at the base of the structure are interconnected by means of a chain drive. The upper roller is part of a screw mechanism with a screw-type clamp or press.

This upper roller is capable of reciprocating in the vertical direction.

1. The pipe is placed on the lower rollers and pressed against the upper one connected to the screw mechanism;
2. Turning the handle, the master produces a broach;
3. Further, without removing the workpiece from the mill, we increase the pressure by tightening the clamping screw for several turns;
4. The workpiece is re-drawn.

The described cycle should be repeated until the pipe has the desired shape.

Types of benders

Despite the fact that the device seems quite simple, there are a huge number of structures of this kind. According to some basic features, they are divided into the following categories.

According to the type of drive, the machine for profile pipe can be:

• Electromechanical. The drive for such a device is a conventional or stepping motor. Moreover, the usual connect through the lower gearbox, which allows you to evenly stretch the applied efforts in time to achieve high-quality bending;

Note! An electric motor can drive a rolling tool roller or a lever system of a dorn type machine.

• Hydraulic. A more powerful version of the design with a manual drive. Use as a clamping mechanism of the hydraulic cylinder will reduce the effort required for bending;
• Manual. The most common type of mechanism, which is usually present in the workshop of every master and a good owner.

Note! Rental of the workpiece and the creation of downforce is produced only by the force applied by the operator.

According to the bending method, rolling mills can be classified as follows:

• Dornovoi - As a rule, industrial manufacturing. Most often it is possible to meet electromechanical or hydraulic. The advantages of this design include the qualitative deformation with a small given bending radius;

• Segmental - to work with thin-walled pipes of soft types of metal. Commonly used by plumbers and makers of heating systems. Consists of two levers with holders for bent products. In the place of the swivel arms set the mandrel with the desired radius. The bend in this case is made after the installation of the pipe using the knob method;
• Spring - is a dense spring of a certain diameter, into which a pipe is passed. For high-quality bending, you must have considerable experience. Usually used by air conditioners;
• Crossbow - used for deformation of copper, aluminum and steel thin-walled pipes. It is a T-shaped structure, on top of which the tube holders are fixed, and in the center is a movable lever with interchangeable mandrels. When you press the handle, the lever is extended, and the ratchet mechanism allows you to gradually increase the bending force.

Do it yourself

For example, we will consider the instructions for creating a three-roller unit of manual type:

1. In the role of the body, you can use steel sheets 3 mm thick, on which we apply the marking with a simple pencil;
2. Rollers can be made of cable pulleys endowed with bearings;
3. The seat for the roller is drilled using a conventional electric drill;
4. Opposite the roller, a sufficiently high nut is welded at the very top, which will be part of the clamping mechanism;
5. U-shaped part is welded, equipped with mounting holes for roller screw. A welded washer will be responsible for lifting the pressure roller.

Finally

The cold rolling mill tubes will allow you to effectively bend products of different types and sizes. By building yourself or buying such a unit and installing it in your own workshop, you can be sure that the construction of frames of even the most bizarre forms will no longer be a problem for you.

With the help of such a tool you will make a greenhouse frame, and an original shed, and any other construction you need.

And the video in this article will reveal to you even more nuances of building your own tool.