Application:

RT-818A Electric Yarn Length Measuring Device is used to determine the length of yarn, determine yarn density or count of textile yarn, and perform a yarn strength test.

Meet standards:

BG4743-84 “Measuring Method of Yarn Linear Density (or count) — Skein Method.”

ISO 2060 BS 2010 ASTM D1907 D2260 DIN 53830

Parameters:

Features:

1, the real single-chip computer control, mature and reliable electrical circuit: start and stop smoothly, low running noise, counting circle accurately, no overshoot phenomenon, good reliability and low failure rate;
2, and single-chip computer design as one of the electronic counter
3、With real-time speed measurement function
4, continuous stepless speed regulation
5, the final stop deceleration in advance, smooth stop rotation, greatly avoiding the phenomenon of rushing
6, sensor dynamic measurement, LED display

Advantages:

1. Yarn frame:
The yarn frame comprises six leaves, and the yarn is wound onto the frame in a hexagonal shape. One of the leaves is movable, which facilitates the falling of the stranded yarn and avoids the influence of artificial tension on the stranded yarn when it is falling.
2. Yarn shaking tension:
Adjust the wrapping angle between the yarn and the tension adjusting bar with the tension adjuster composed of two open parallel tension adjusting bars to adjust the tension of the swinging yarn and measured by the lever-type tension scale.
3. Transmission mechanism:
The transmission mechanism is installed in a cover shell, so it is not easy to get dust to ensure its reliability. Two separate motors drive the rotation of the yarn frame and the transverse reciprocating movement.
(1) Yarn frame transmission:
Yarn frame is driven by two pairs of pulleys via separate DC motors, the rotating speed of the frame is controlled by electrical control and can be infinitely variable, the frame starts smoothly, rotates to the last turn of the predetermined number of turns to slow down on its own, and then brakes itself at the predetermined number of turns, the frame stops at the correct position, and it is smooth.
(2) Yarn swinging transverse reciprocating drive:
The cam is directly driven by a separate synchronous motor at the same speed, pushing the transverse guide hook to reciprocate at the same speed, so that the yarn is moved transversely when winding, and the larger width of transverse reciprocation will reduce the number of overlapping layers of the yarn when winding.
4. Wisp circle number control mechanism:
The key on the counter pre-selects the number of loops manually, the switch without contact converts the number of loops the yarn frame has turned into a signal, and the counting digits of the counter display the number of loops. The precise counter ensures the correct selection and control of the yarn’s number of loops.