HDK-DFT Hot Draw Knitter with Draw Force Tester & Package Changer
INTRODUCTION
Hot Draw Knitter with Draw Force Test, HDK-DFT, is a precision knitting machine with automatic stitch control system and a Draw Force measurement to check the consistency of the POY production quickly and accurately. It is ideal for use in production control and R&D labs as well as dyeing plants.
The HDK-DFT is the only instrument that provides a knit sample and draw force results on a package at the same time. This test complies with ASTM D 5344, Standard Method for Extension Force of Partially Oriented Yarn.
POY, MOY and LOY samples from 10d up to 2000d can be knit with the HDK. (Please consult Lawson-Hemphill to knit higher or lower denier yarns).
Stand-Alone Feeder, SAF, is a semi-automatic continuous yarn feed option available for HDK-DFT. This affordable add-on greatly increases laboratory efficiency by reducing operator time during sample preparation. The SAF allows the operator to tie the yarns without stopping the lab machine. The Feeder can also be equipped with an optional Air Splicer.
The machine can be equipped with a non-contact Vapor heater and contact Pin heater to allow testing both polyester and nylon yarns. Precision Draw ratios are available from 1:1 to 1:3, with increments of 0.05.
Windows-based and user friendly DFT software program provides real-time tension data on the yarn as it is being drawn and knitted. Accept/Reject limits can be defined by the operator. The test results and the tension graphs are saved in common file formats. DFT software also includes the ability to run draw force tests under increasing temperature levels to determine optimum settings.
FEATURES
- Precision knitting machine with automatic Stitch Control and Draw Force Measurement system
- Provides a standard knit fabric sample and draw force results on the same POY package at the same time to check the uniformity and the consistency of the POY production quickly and accurately
- Complies with ASTM D 5344, Standard method for Extension Force of Partially Oriented Yarn
- Ability to knit POY, MOY and LOY yarn samples
- Non-contact Vapor Heater (max 2050C) and contact Pin heater (max 2500C) are available to test polyester and nylon yarns on the same machine
- Precision Draw Ratio rolls from 1:1 to 1:3, with increments of 0.05 are available
- Nine different cylinder sizes to knit yarns from 10d up to 2000d. (Please consult Lawson Hemphill to knit higher or lower denier yarns.)
- Interchangeable knitting cylinders that can be used in all Lawson Hemphill knitting machines
- Maintains constant course length with the Yarn Meterhead to ensure uniform loop size
- Maintains constant tension on the yarn with the Air Servo/Stitch Cam Regulator
- Features fabric take-up assembly to collect the fabric sample under controlled tension
HDK-DFT SOFTWARE
Windows based, easy-to use Draw Force software features:
- Intuitive user interface
- Draw Force statistics with average, min and max tension, standard deviation and CV%
- Auto or operator defined accept/reject limits to sort out the packages
- Ability to view the tension graphs and test data for multiple or single packages
- Automatic saving of the test settings, results and tension graphs
- Easy to share test report formats
AVAILABLE OPTIONS
Package Changer for automatic operation
Available without the knitting head as stand-alone Draw Force Tester
INSTRUMENT SIZE
| Depth: | 47 in. (119cm) | ||
| Height: | 60 in. (152cm) | ||
| Width: | 63 in. (160cm) | ||
| Weight: | 900lbs. (408kg) |
CONNECTIONS
Power: 115/220 VAC – 50/60 Hz
ORDERING INFORMATION
Catalog Number: LH-123
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To learn how Lawson Hemphill or the TMI Group of Companies can help your company profit through testing, please call us at 1-508-679-5364, or e-mail Information@lawsonhemphill.com.
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PDF Product Sheet:
HDK-DFT Hot Draw Knitter with Draw Force Tester
HDK-DFT - Chinese
Product Video
Hot Draw Knitter (HDK) with Draw Force Test
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