Bending of reinforcement is the process of changing the shapeMaterial with preservation of strength characteristics when using mechanical action. So you can get the rods, bends, elements in the form of spirals and other forms. This manipulation is also common when creating fencing for private estates, grates and gates. It is worth noting that the type of reinforcement can be changed only if it has a steel base, since the deformation of fiberglass is impossible.
Features
In the process of installing designs of various types of bending valves themselves becomes an indispensable stage of work.As a rule, it is used for masonry, reinforced concrete products, which are actively used in construction, and for reinforcing cages. The optimal method for carrying out work is a mechanical method. This is due to the fact that methods such as heating the bend point with an autogen or blowtorch, as well as sawing with improvised tools, such as a corner machine, significantly reduce the strength characteristics of the product. The place of deformation should be smooth, while sharp corners are excluded.
The simplest method
The simplest way of bending is as follows.The workpiece, which is subject to deformation, is placed between the stop and central elements of the tool. With the help of the bending part the reinforcement bending is formed in the desired side. It is necessary to bring the element to the stop, pre-adjusted to the desired angle of the product. The rounding side can be any: counterclockwise or in the opposite direction. The accuracy of the bending point is provided by the stopper finger, and there is no possibility of moving parts of the workpiece that are not subject to change.
Manual machines
Bending of reinforcement can be done with the help ofdifferent equipment. It is divided into two types of drive type - these are mechanical and manual devices. The latter can have any external design, two basic types of construction are used: portable and desktop. Simplicity of the devices ensures easy use and subsequent care.
The portable version has a relatively smallthe weight. Therefore, his movement can be done by the efforts of two people. The desktop fixture is fixed on the workbenches. Devices are used, as a rule, for the manufacture of elements with a diameter of not more than 14 mm. Therefore, they are not always suitable for large-scale construction. Simultaneously, for use on a personal site, they are the best option.
Mechanical accessories
Mechanical machines for bending and cutting reinforcementdiffer in the identical way of bending the rods. The exception is made by special devices. The central and bending fingers are placed on the disk - this is the main working element of the device, which is connected to the electric motor by means of a reducer. Between the elements a workpiece of the required length is installed. During the rotation of the base, it comes into contact with a thrust element equipped with an electric motor switch, and bends around the central under the force transferred from the bending finger. The bending of the reinforcement is considered complete when the stop is touched, on which the resulting angle depends, and the pins.
Bending of reinforcement with improvised materials
Fittings for pouring the foundation of the house can bebend by yourself using devices made from improvised materials. Distribution has received several options. The simplest and at the same time effective is the use of a pipe, pre-concreted or buried in the soil. For this purpose, a hollow element with a small diametrical dimension is selected. It is necessary to lower the armature inside the pipe and bend the remaining part on the surface. A competent selection of the diameter will ensure tight fixation of the rod. To obtain the product with the desired bend, you can usually do without assistants, since this process does not require special efforts. If difficulties arise, you can use the second pipe. She puts it on top of the armature.
Also, there is another device for bending the armature by one's own hands. It is based on a similar principle.The search for materials for its manufacture is not difficult. It is enough to find two pins and two pipes. The latter should be made of steel. In this case, their diameter is selected in accordance with the size of the reinforcement used for bending. It should be noted that the amount of physical effort decreases with increasing length of the pipes. Pins must be dug tightly into the ground to a sufficient depth. From both ends of the workpiece put on the prepared pipes. The pins are used as a support. They will provide easier connection of pipes and bringing the reinforcement to the desired bend. If they are not available, you can use other suitable parts used in the construction.
Fitting from the channel
Such a machine for bending fittings with their own handsis based on a slightly different principle. To fix the workpiece, a steel fixed element protruding as a central pin is installed and a thrust piece. Then, the swivel assembly is fastened, complemented by a lever of sufficient length and a pin for bending. The force applied to the lever during the rotation of the assembly ensures that the bar is bent at a selected angle around the steel pin installed in the center. This design allows you to easily work with reinforcing parts with a diameter of 14 mm. If you use a long lever and strengthen the device, it will be possible to bend blanks with a large diameter.
How to make a machine from the channel?
To create such a mechanism is not requireda lot of time. Enough two or three hours. Work on it is made much easier than bending and cutting reinforcement with the use of a vice. Below is one of the implementation options. Metal pipes, used as supports, are driven into the ground. They are welded to a channel with a length of about one meter. To its upper part are attached two corners - this is necessary to create an emphasis for the workpiece. As a lever, two steel pipes protrude. They need to be welded together, with the angle between them being 90 degrees.
The horizontal element is fitted with an extensionpart. Vertical is used to pass the axis. Thus, the action of the lever, to which it is necessary to weld the corner, is greatly enhanced. This will ensure that the workpiece is fixed during the work. The level of the angle should correspond to the level of the upper part of the frame. For the production of the axis, a steel rod is used, the diameter of which is within 30 mm. At the same time, its lower part should be shaped like a square. A hole of the same shape is also cut in the channel. So you can avoid falling out or turning the axis while the bending of the reinforcement is being performed.
