Deflecting Presser Foot for Upright Threads

If a weft yarn is inserted with the presser foot, it may lead to the following problems:

Remedy:
Use the presser feet with deflecting curve.
The deflecting curve guides the upright threads to pass the presser foot.

Deflecting Presser Foot
Deflecting Presser Foot

Presser Foot Type 3A

Presser foot with deflecting curve on the left-hand side

Presser Foot Type 3B

Presser foot with deflecting curve on the right-hand side

Take care of the yarn carrier tracks for upright thread and weft yarn. The upright thread may not be located between the presser foot and the weft yarn.

1

Upright thread

2

Weft Yarn

Wrong allocation to the tracks

  • The upright thread (1) is positioned on a higher track than the weft yarn (2).
  • The upright thread (1) drives the weft yarn out of the presser foot grove.

Correct allocation to the tracks

  • The upright thread (1) is positioned on a lower track than the weft yarn (2).

Depending on the yarn carrier tracks, where the upright thread and the weft yarn are, use either the front or the rear presser feet.

Upright thread

Weft Yarn

Example for a mounting position of the presser feet

lower track
(e.g. track 3)

higher track
(e.g. track 6)

Installation in the rear carriage *

higher track
(e.g. track 6)

lower track
(e.g. track 3)

Installation in the front carriage *

To be able to use the presser feet in a flexible way, mount the presser feet on both carriages.

Installation on both carriages *

* The mounting position of the presser feet depends on the pattern.

Depending on the pattern, the changed mounting position may allow for a shorter knitting time.

Working on the M1plus:

  1. Configure the mounting position of the presser feet
    Pattern Parameter -> Machine Attributes -> Presser feet tab
  2. Create pattern

Refer to the M1plus online help for more information.

How to test different mounting positions to determine the shortest knitting time.

  1. In the Presser feet tab, configure the mounting position of the presser feet
  2. Create pattern
  3. Determine the knitting time (knitting time 1) in the Sintral Check
  4. In the Presser feet tab, change the mounting position of the presser feet
  5. Editing the knitting program (technical processing)
  6. Determine the knitting time (knitting time 2) in the Sintral Check
  7. If necessary, repeat the steps 4 to 6 until you have determined the shortest knitting time (knitting time 3, 4...)

Working on the knitting machine:

  1. Mount the presser feet at the determined position.
  2. Adjust the presser feet vertically and horizontally.
  3. Configure the presser feet (same configuration as on the M1plus)

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