Holding-deep by Tuck Function
Holding-deep the Fabric by Covering via Tuck Function:
- Problem in case of very tight fabrics
Raising needles draw the fabric in spite of the holding down jacks upward, whereby the already knitted stitches do not get behind the needle latch. - Solution:
Installation of cams for holding-deep the fabric via the tuck function
Needles of the opposite needle bed will be risen in advance to the knitting needles forming a needle crossing before the knitting needles for holding-deep. - Advantages:
- The standard knitting system can be converted with little effort by exchanging few parts.
- The converted knitting system can form stitches and can deliver and receive transfers without restrictions.
- All functions can be performed independently of the carriage direction.
- Disadvantage:
- This system cannot perform tuck.
Cam box conversion for 'Holding-deep by tuck function':
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Cam box distance |
6‘‘ |
5‘‘ | ||||
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Gauge [E] |
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Cam Conversion
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269679 |
269680 |
269681 |
269682 |
269683 |
269684 |
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: Is not possible for a 5,2" cam box, as the holding-deep needles cannot be risen in advance to the knitting needles due to this type of cam box.
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System distance 6" |
System distance 5" | ||
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Replacement of cams due to the conversion | |||
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1 |
Raising Cam |
1 |
Raising Cam |
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2 |
Stitch cam on the left |
2 |
Stitch cam on the left |
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3 |
Stitch cam on the right |
3 |
Stitch cam on the right |
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4 |
Tuck limiting cam |
4 |
Tuck limiting cam |
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5 |
Tuck pressure cam |
5 |
Tuck pressure cam |
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6 |
Receiving Cam |
6 |
Receiving cam - no replacement |
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7 |
Delivery pressure cam |
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Not Required |
Application Example:
When knitting tuck with float without holding-deep cam, the yarn can be pushed upward during needle raising.
With the following stitch formation the yarn lies as float in the fabric then.
Solution:
System conversion for holding-deep via tuck function
- Knitting: Front tuck with float
- Cam box conversion for in the rear needle bed
Tuck needle action in the rear needle bed for holding deep. - Knitting: Rear tuck with float
- Cam box conversion for in the front needle bed
Tuck needle action in the front needle bed for holding deep
Result:
The cam holds the float under the raising needles and the tuck lying in the needle is not pushed upward by the needles raising for stitch formation.
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4 |
Knitting with system 2: Rear Stitch |
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3 |
Knitting with system 1: Rear tuck float | |
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2 |
Knitting with system 2: Front Stitch | |
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1 |
Knitting with system 1: Front tuck with float |
Further applications:
- Newly laid in weft yarns will not be held below the needle crossing as they are not yet enclosed by fabric (crossing point of the supporting surface of opposite needles).
Due to the system conversion , the weft yarn can be locked in the needle bed gap until a following stitch row is knitted. - Problem at the color field borders with intarsia: The thread leading from the yarn carrier to the color field lies too high to get caught by the first needle of the color field.
This relating thread is precisely held-deep by a holding-deep needle in order to be caught by the needle hook
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Needle raising with holding-deep with tuck | |
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Example: Knitting process: << S:R-F; S1
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Programming with CREATE PLUS:
- The cam for Holding-deep by tuck function is installed at the machine.
- 1
- Create a private machine in the Attributi della macchina tab of the Configurazione tool window.
- The private machine is not write-protected and the MC attributes can be changed.
- 2
- Activate Abbassamento mediante funzione maglia inglese at Trasformazione di sistema in the Funzioni di sistema tab for the corresponding systems at front and rear.
- Tuck needle action is no longer allowed by this systems.
- The system function will be disabled accordingly.
- 3
- Draw pattern.
For knitting and holding deep, e.g. with needle action Front stitch - Rear tuck - Knitting of front stitch and holding-deep by the rear tuck.
- 4
- Set one of these 3 entries in the System Functions control column for holding-deep.
Abbassamento davanti 
Abbassamento dietro
Abbassamento davanti e dietro
Sintral specification for knitting and :
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S:A - #G; Y:3; S2
front stitch (A) and rear tuck (G) = holding-deep -
S:#G - A; Y:3; S2
rear stitch (A) and front tuck (G) = holding-deep - The # symbol stands for the Holding-deep by tuck function: in Sintral
- 1
- Carry out technical processing.
- During the technical processing and the determination of the needle occupancy, these settings are taken into account.
- The Sintral is generated accordingly.