CNC-based Spring Coilers

The COLOMBI CNC-based spring coilers have been designed to offer an even more stable coiling process by making it possible to use the full range of post manufacturing options. The CNC-based COLOMBI coilers use servo motors and servo drives to ensure stable and smooth motions that easily can be programmed. Between one and three servo axes are used to control the coiler's motions. The number of axes depends on the type of coiler that is used and the type of spring that is being manufactured.

Two versions of the same machine and Evo

Some of the CNC-based spring coilers are available with either Allen Bradley or Beckhoff controls. This allows each customer to choose the control system that is most suitable to them.

The two systems offer the same possibilities and options and are equal in their capabilities. The main difference is that the Allen Bradley system is controlled by a PLC and the Beckhoff system by a PC. The PC-version offers the possibility to use a Windows based interface. The Evo is PC-controlled.

The Evo-series has been developed for the companies with demand for a cost efficient CNC coiler.

The CNC-benefit

Some of the CNC-based COLOMBI spring coilers have the ability to adjust their movements while running in order to insure the preset spring parameters are maintained. This can be done if the Length Check and/or Diameter Check options are used. These options measure each spring's length and/or diameter and send the collected data back to the PLC where the data is evaluated. If necessary, the PLC or PC will adjust the servo axis’ movements in order to reach the preset length and/or diameter value.

CNC-Advantages

There are many advantages with a CNC-based coiler:

• Unlimited wire feed
• All post manufacturing options can be used
• One coiler can be programmed to manufacture numerous different types of springs
• Change over time between different springs can be short
• The possibility to receive production statistics
• The possibility to use the feedback options

Models

A number of different spring coilers are available. Each one has a specific purpose.

COLOMBI C413T and C513T CNC-based spring coiler

The COLOMBI C413T and C513T coilers are designed to manufacture conical springs or cylindrical springs with high pitch. The movements of the coilers are controlled by three servo axes. The first controls the wire feed, the second controls the pitch and the third controls the spring diameter. The C413T is Allen Bradley based and the C513T is Beckhoff-based. Both can be combined with the Orbit unit for full post manufacturing treatment.

COLOMBI C413R CNC-based spring coiler

The COLOMBI C413R is a coiler specially designed to manufacture square-shaped oblong springs. The spring is coiled by using a rotating coiling centre specially designed for each spring.

COLOMBI Evo CNC-based spring coiler

The Colombi Evo is a coiler designed to manufacture conical or cylindrical springs. The movements of the coiler are controlled by two or three servo axis, depending on what kind of spring that is going to be manufactured and at what speed. An electric dereeler is integrated in this coiler. Evo can be combined with the Privus or the Orbit post manufacturing unit, which can either heat treat or control the load.

Available for the COLOMBI CNC-based coilers is also a wide range of pneumatic and electric wire dereelers.