VEITH Pin Table for knitted fabric
tubular fabric - open width
This particular VEITH Pin Table is designed in order to support the spreading and matching of knitted fabrics with horizontal and with inclined stripes, i.e. it supports yarn dyed fabric as well as printed fabrics. Together with the VEITH PinIT software it forms a strong team to improve fabric utilization and productivity.
PROBLEM
- Matching stripes in knitwear has always been difficult and time consuming due to the nature of the material.
- Knitted fabrics are manufactured in a circular process creating a spiral. Opening the tube leads to fabric with inclined stripes - typical for yarn dyed fabrics.
- As slanted stripes would mean to work in a slanted coordinate system, it is often tried to manipulate the orientation of the stripes towards a more vertical direction. This happens typical when stentering or compacting the fabric. Unfortunately this manipulation of the fabric structure often leads to bowing or wavy stripes due to wrong process parameters.
- Traditional methods for matching tend to waste a lot of material, since the fabric is cut in panels or patterns have to be cut out with blocking tolerances.
- The task of re-arranging the blocked pieces is time consuming and so expensive.
- The operators doing the matching job have to be skilled and experienced, because of the elastic nature of the fabric.
red area: lost fabric
SOLUTION
ADVANTAGES
- Improving the quality
- Spreading and matching in one combined step
- Avoiding of relaying operations
- Reducing the fabric consumption
- Quick setup time
- Flexible system, which allows to adjust needle bar positions even after having started spreading, i.e. it allows to react on too much looseness - or - to react on too much tension (fine tuning)
- Immediate fine cutting (net cutting) after spreading - no relaying
- Preparing the lay package even for CNC-Cutting (if certain preconditions are fulfilled)
- Implementing clear top-down organization for spreading and matching of checked (plaid) and striped fabrics - high efficient engineered industrial process - from fabric registration - through marker making - through spreading and matching - until cutting
KNOW-HOW
- Our Know How is based on the experience of more than 900 installations world wide
- Successful matching has a lot to do with correct marker making. Therefore marker making was always a key subject for us, when helping our customers with the implementation of a matching process.
- We have developed a method, which allows for the first time to plan matching markers for fabrics with slanted stripes, i.e. for typical yarn dyed tubular fabric - being spread open width. These markers can be planned using a normal professional CAD-software. The VEITH PinIT software is required to work according to this method.
- There are particular rules and restrictions to observe during planning markers for matching. These rules and restrictions are depending on the application and matching requirements.
- Our concept of marker making reduces the problems of repeat variations.
- Our way of planing markers, allows to follow various strategies to arrange patterns in the marker for a better utilization of the fabric.
- With a VEITH SYSTEM marker it is possible to cut stripes even on a CNC-Cutter, provided certain preconditions are fulfilled.
- measuring the fabrics
- registration of the fabrics in VEITH PinIT
- pre-process of marker making in VEITH PinIT, i.e. generating certain key data required for marker making
- planning the marker on a professional CAD System
- work preparation for the usage of the VEITH Pin Table using VEITH PinIT
- setting up the VEITH Pin Table according to the before determined data
- spreading and matching the fabric ply by ply in a combined work-step using the VEITH Pin Table
- net cutting of the matched lay package
More detailed information about the complete process can be found on our VEITH PinIT page.
Know How or knowledge makes the difference. Only with sufficient knowledge it will be possible to drop blocking or get away from typical panel cutting. With the data generated by the VEITH PinIT software it is possible to plan matching markers for fabrics with slanted stripes on a normal CAD software, i.e. for typical yarn dyed fabric. It is the only way to do it, because normal CAD software is working only in a perpendicular logic. Proper marker making is the precondition for a substantial reduction of fabric consumption. Our Know How and our tools are helping our customers to get there.
This is the key aspect in a situation, where the fabric costs are representing the majority of the manufacturing costs - often 60-70%. This is what counts. Other advantages - like reduced labor time - are then reduced to a highly appreciated additional benefit.
SAVINGS
- Fabric savings (blue) in the range of typical 5% to 10%
- Labor saving (green) between 30% and 50%
- Easier control of the process of spreading and matching
- The demand in the skills of the operators is less.
- This results in a ROI of normally less than 9 months.
- Even the ROI of a CNC-cutter can be reduced.
TECHNIC
VEITH Pin Table - SKT-type:
- size of standard VEITH Pin Table (for tubular knitted fabrics - open width)
- length: 406 cm
- width: 170-240 cm - mostly used 212 cm (details see below)
- height adjustable: 80-90 cm
- available widths: 170, 184, 198, 212, 226 and 240 cm
- table length adjustable with 2m modules.
- needle diameter is colour coded - all needles with rounded tip (ball point)
- needle diameter 1.0mm (blue)
- needle diameter 1.4mm (green)
- needle diameter 1.8mm (red)
- length of standard needle - 10cm,
note: this does not mean that a lay packages can be spread up to 10cm, there are other limiting factors such as the stability of the needle due to its diameter - other special available needles (handmade)
- extra fine needle - diameter 0.6mm, length 25mm
- needle with eye - diameter 1.7mm, length 30 mm
OPTIONS:
- VEITH Needle Plates (STOLK)
- VEITH PinIT Software for the VEITH PIN-TABLE
- VEITH Roll Stand or VEITH Turn Table with extra device for underlay paper and polyethylene film
- air-floatation for easy transport of heavy lays
- VEITH adapter for 3rd party cutting device (end cutter), following actual used angle of needle bars
- additional VEITH Needle Bars
- belt-drive for automated transport
VEITH SOLUTIONS FOR SPECIAL APPLICATIONS:
- VEITH Pin Table for woven fabrics
- VEITH Pin Table for flat knitted fabrics
- VEITH MDflex, pinning system for lace
- VEITH Symmetric Matching Device
- VEITH Linear Matching Device
- In case of handling multiple cloth rolls with plenty exchanges of cloth rolls for managing split spreading orders (e.g. MTM):
VEITH Cloth Roll Magazine with integrated Gantry Spreader
VEITH SYSTEM - COMPETENCE in MATCHING CHECKS, STRIPES and PATTERNS