Multiple Delivery Unit
Solution for a freestanding feeding unit with multiple feeding rollers, each independently electronically controlled.
AN EXAMPLE OF THIS SOLUTION FAMILY:
DELIVERY UNIT FOR WIDE WEAVING
DESIGNED FOR WEAVING FROM CREEL WITH FEEDING ROLLER
OVERVIEW
A multiple warp in-feed system consists of several in-feed rollers that draw off the warp yarn from the creel or from several warp beams. Such solutions are used when there is a risk of the warp yarns overlapping on the in-feed roller or when the warp tensile forces are high.
Even when weaving multi-layer fabrics, multiple in-feed systems can be used depending on the fabric structure. The reason for this may be that different warp yarns are used or different weave-in of the warp yarns is necessary.
KEY ADVANTAGES
- Uniform and controlled warp thread tension
- Precise and easier setting of the required warp tension
- Ensuring consistent reproducibility
- Reduces downtimes of the weaving machine
- Improved product quality and less waste
CONSTANT WARP THREAD TENSION
When weaving from a creel special attention should be given to the warp delivery unit between creel and weaving machine. This unit ensures that the weaving machine is provided with the correct length of warp yarn. By using a delivery unit to maintain the constant tension of the warp threads, the productivity and product quality of the weaving machine can be further improved.
The delivery unit regulates the warp tension between the creel and the weaving machine. A feeding roller guides the warp material to the weaving machine with the desired tension. Typically, the warp tension between the creel and the delivery unit is lower than the tension between the delivery unit and the weaving machine.
The warp tension between the delivery unit and the weaving machine is measured by a load cell and monitored by the control unit. The required warp thread tension can be directly adjusted via the control unit.
Bobbin creels are used in technical applications such as warping, weaving, knitting, and pultrusion. They must accommodate the required number of spools and ensure that the yarn tension is equal across the entire warp sheet. The size of the bobbins creel and the number of spools depend on the number of yarns. If the available space is insufficient, using additional warp beams in a separate frame provides the optimal solution.
