A rolling mill coil-forming apparatus includes a rotating quill that supports an elongated path hollow structure, such as a laying head pipe, for receiving elongated material after it has been rolled. The elongated structure is constructed of combinations of ferrous and non-ferrous dissimilar materials. Elongated path hollow structures are formed from adjoining, abutting segments, and can be constructed in any three dimensional compound curve shape that can replicate the smooth, continuous curve elongated material transport path of known laying pipes, or any other desired path. A pathway structure segment or plurality of segments may be constructed of a homogeneous material, or alternatively, different materials may be spliced or otherwise joined to form the composite, complete elongated path hollow structure. The adjoining segment portions may be nested within or circumscribe another pathway structure layer.

The laying head pipe can be divided into three sections: the first is the initial section, which is linear, in which the wire does not undergo plastic bending deformation; the second is the deformation section, in which the wire carries out plastic bending deformation with the bending shape of the tube; the third is the setting section, The plastic bending deformation of wire rod continues to form a stable coil, and the setting section is very important for the coil shape. The outlet of the spinning tube.

The end section is generally at a certain angle with the surface of the spinneret, so that the ejected coil can produce forward partial speed, and then the whole and horizontal of the spinneret can be adjusted.

The coil can be smoothly ejected from the spinning tube and laid flat on the air-cooled roller table with a horizontal angle of 10℃ to 20 ℃. The nozzle angle of most wire drawing machines is not adjustable, so when the rolling speed changes, the horizontal forward speed of the coil will be different, which will cause the coil falling on the air-cooled roller table to deviate from the set optimal condition, that is, the coil shape is not ideal. For this reason, the first section of the air-cooled roller table is generally designed in the form of adjustable height, so that the vertical distance from the spinning tray to the air-cooled roller can be adjusted. By adjusting the height of the roller table, the coil can be correctly laid on the roller table, but in actual production, it is often difficult to master due to lack of operation experience, resulting in the coil falling obliquely.

In the production of small-scale wire rod, due to the large horizontal speed, the coil is in front of the coil. When the height is not adjusted properly, the coil will be tilted on the roller table. Because the wire is thin and soft, the coil is easy to form an ellipse.


  • Increased productivity: Planetary thread rolling dies enable faster and more efficient production of nails, reducing downtime and increasing output.
  • Improved nail quality: Planetary thread rolling dies create more uniform and precise threads, resulting in stronger and more consistent nails.
  • Cost savings: With less material waste and fewer defective nails, using planetary thread rolling dies can lead to significant cost savings over time.


Deliver our value with content.