Manufacturing Spring - Cold Coiling Spring

Spring-winding machines are provided for cold coiling of springs made of wire from 0.3 to 8 mm in diameter. On automatic machines, the manufacture of springs of left and right coiling with pressed and unadulterated extreme turns of a cylindrical shape is permitted. The spring coiling machine has a prismatic rectangular body, at the top of which the main mechanisms of the machine are located.

The withdrawing mechanism of the spring-winding machine in the production of springs has 2 pairs of rollers, which ensure the usual feeding of wire into the winding mechanism. The coiling mechanism, in cooperation with all other devices of the machine, coils the springs. The adjustment for winding the springs to the required dimensions is carried out by handwheels located on the upper cover of the casing.

In the working drawing, the springs usually give the following data: the number of workers and the number of complete turns, the direction of winding, the pitch, the outer and inner diameters of the spring, the extended length of the spring and the diameter of the wire. The unfolded length of the spring blank is likely to be calculated according to the formula. In this case, the more the number of complete coils of a spring, the preform for its manufacture, should be longer. All information about the springs can be found on the site prygina.com.

The driver in accordance with the drawing of the spring for the manufacture of springs and a scientific and technical card for its creation, which indicates the required insertion tool and accessories, and also the order of their installation on the machine, takes all that is necessary in the tool pantry. Tools and accessories include rollers of the right fixture, rollers and reversing laths of the feeder, a finger and a fixed correction of the coiling device, and also a cutter of the cutting device.

If necessary, replace the step foot if the spring comes out of the plane of the unstable bar. These instruments and accessories are installed by the adjuster on the mechanisms of the spring-winding machine. The machine is adjusted depending on the diameter, pitch and diameter of the wire.

In accordance with the table attached to the machine, the position of eccentrics in the rocking mechanism is found, which move the feed rollers. To wind the springs with a specific number of turns, it is necessary to make the feed device so that a fixed length of wire is passed into the coiling mechanism.

The length of the workpiece, which is required for 1 spring, is adjusted by the angle of the link. The adjusted feeder is checked by a test feed of the spring blanks. By setting the feed of the given length, proceed to the setting of the coiling device. For this purpose, a finger and a fixed mandrel are installed in the machine in accordance with the shape and dimensions of the spring.

The finger on the cylindrical form of the springs is in a fixed location, providing a given diameter of the wound springs. The displacement of the finger is guaranteed by the lever connected to the cam shaft. The cutting mechanism is cut at the time of the suspension of the feeder and cuts the spring from the wire. The inclusion of the cutting device is performed by a cam located around the distributor shaft of the machine.