Accumulator with tensioning device
The present application provides a yarn accumulator for use with a yarn sausage in a heat setting line. The yarn applicator may include a sled in contact with the yarn sausage and a tensioning device in communication with the sled. The tensioning device applies a variable tension to the sled based upon the length of the yarn sausage. The tensioning device may include a sled pulley in communication with the sled, a ratioed pulley set in communication with the sled pulley, a counterweight pulley in communication with the ratioed pulley set, and a counterweight in communication with the counterweight pulley.
1. A yarn accumulator for use with a yarn sausage in a heat setting line, comprising:
a sled in contact with the yarn sausage; and
a tensioning device which comprises a sled pulley in communication with the sled, a ratioed pulley set in communication with the sled pulley, and a counterweight pulley in communication with the ratioed pulley set,
wherein the tensioning device applies a variable tension to the sled based upon a length of the yarn sausage.
2. The yarn accumulator of claim 1 , wherein the tensioning device comprises a counterweight in communication with the counterweight pulley.
3. The yarn accumulator of claim 2 , wherein the counterweight comprises a plurality of weights.
4. The yarn accumulator of claim 1 , wherein a first pulley and a second pulley of the ratioed pulley set comprise a ratio of about four to one or greater.
5. The yarn accumulator of claim 1 , wherein a first pulley of the ratioed pulley set comprises a sled shaft.
6. The yarn accumulator of claim 5 , wherein a second pulley of the ratioed pulley set comprises a pulley shaft.
7. The yard accumulator of claim 6 , wherein the first pulley and the second pulley are in communication via a pulley coil.
8. The yarn accumulator of claim 1 , further comprising a chute with the sled thereon.
9. The yarn accumulator of claim 1 , further comprising a pull roller positioned about the sled.
10. A yarn accumulator for use with a yarn sausage in a heat setting line, comprising:
a sled in contact with the yarn sausage;
a tensioning device which comprises a sled pulley in communication with the sled and a ratioed pulley set in communication with the sled pulley,
wherein:
the ratioed pulley set comprises a first pulley with a sled shaft and a second pulley with a pulley shaft,
a counterweight pulley is positioned on the pulley shaft, and
the tensioning device applies a variable tension to the sled based upon a length of the yarn sausage.
11. A yarn accumulator for use with a yarn sausage in a heat setting line, comprising:
a sled in contact with the yarn sausage, wherein the sled comprises one or more thread discs thereon; and
a tensioning device in communication with the sled,
wherein the tensioning device applies a variable tension to the sled based upon a length of the yarn sausage.
12. The yarn accumulator of claim 11 , wherein the tensioning device comprises a sled pulley in communication with the sled, a ratioed pulley set in communication with the sled pulley, and a counterweight pulley in communication with the ratioed pulley set.
13. The yarn accumulator of claim 11 , further comprising a chute with the sled thereon.
14. The yarn accumulator of claim 13 , further comprising a pull roller positioned on an end of the chute.
15. A method of maintaining a force on a yarn sausage in a yarn accumulator, comprising:
positioning a sled about the yarn sausage;
expanding a length of the yarn sausage;
pushing the sled in a first direction by the expanding length of the yarn sausage;
pulling a first pulley of a ratioed pulley set by the sled pushed in the first direction;
pulling a second pulley of the ratioed pulley set by a pulley coil in communication with the first pulley;
raising a counterweight by the second pulley; and
pulling the sled in a second direction to maintain the force on the yarn sausage as the counterweight rises.
16. A yarn accumulator for use with a yarn sausage in a heat setting line, comprising:
a sled in contact with the yarn sausage; and
a tensioning device in communication with the sled;
the tensioning device comprising a ratioed pulley set and a counterweight such that the tensioning device applies a variable tension to the sled based upon a length of the yarn sausage.
17. The yarn accumulator of claim 16 , wherein the tensioning device comprises a sled pulley in communication with the sled.
18. The yarn accumulator of claim 16 , wherein the tensioning device comprises a counterweight pulley in communication with the ratioed pulley set and the counterweight.
19. The yarn accumulator of claim 16 , wherein the counterweight comprises a plurality of weights.
20. The yarn accumulator of claim 16 , wherein a first pulley and a second pulley of the ratioed pulley set comprise a ratio of about four to one or greater.