DRAWING AND STRAIGHTENING

Drawing is a wire-reducing process and improves wire straightness.

 

In addition to forming tube and bar stock, HMP has also made a name for itself in the construction of wire-forming machines. These machines include wire drawing machines, rolling mills, coiling machines and specialized machines designed for wire straightening and cutting.

 

 

The figure above shows a selection of rolled profiles. The profiles shown are used in the eyewear industry. In the flat-rolling sector, HMP builds machines for rolling strips with extremely high precision.

 

 

Drawing:

The workpiece is drawn through the die by means of a gripper and thereby reduced in its cross-section.

 

Roll frames:

Instead of a stationary drawing die, continuously adjustable dies with rotating rollers can be used. Depending upon the application, steel or carbide rollers are used.

 

MACHINES

ZPR 7500:

Chain drawing machine with a drawing length of 6 m. Instead of chains, the carriages can be moved using spindles or hydraulically. HMP builds drawing machines with single, double and triple infeeds.

EZH-3000:

Horizontal drum-drawing machine with axial traverse. The system has a set of tongs for drawing in material, an initial compression unit and a push-out unit. HMP builds drum-drawing machines with vertical and horizontal drawing drums. All machines have drives with infinitely variable drawing speeds.

SPZ - 500:

Caterpillar-type drawing machine for drawing straight workpieces to any desired length. Both caterpillar tracks are driven via an infinitely variable speed control. The drawing die can move slightly in an axial direction. A force sensor controls the initial contact pressure of the caterpillar track as a function of drawing force. These machines can be used for cold and hot forming.

DRA - 2:

Wire straightening and cutting machine with rotating wing straightener and rolling straightening elements. Feed is continuous and infinitely variable. Alternatively, the straightening process can be performed using radially adjustable profile rollers or rotary swaging units. Cutting action is activated either mechanically or via sensors.

DRA 2: 

Wire straightening and cutting machine

For wires up to a max. 4.5 mm in diameter

Maximum cutting length: 2,000 mm

 

DRA 2 RE 2 R: 

Wire straightening, calibration and cutting machine

Calibration is achieved using a rotary swaging unit.

For wires up to a max. 4.5 mm in diameter

Maximum cutting length: 200 mm

 

PRB50 ZBK6000 4: 

Wire straightening, drawing and cutting machine

Straightening unit with 2 x 7 rollers, CNC-controlled roller feed

Maximum drawing length: 4,000 mm

Maximum drawing force: 60 KN

 

RBH20 3: 

Stretch forming bench for wires and profiles (force or displacement control)

Maximum stretching force: 200 KN

Maximum stretching length: 3,000 mm