This stenter is designed for stentering or thermosetting knitted fabrics (70-500 g/m²) made of cotton, cotton/polyester or other blended fibers.
Specifications
Type: Single layer horizontal chain return type with hot air circulation
Machine hand: Left or right
Nominal width: 3400 mm
Width adjustment range: 700-3200 mm
Machine speed: 12-100 m/min
Temperature inside chambers: Max. 220 °C
Fabric held by: Pins
Overfeeding range: -10% to +40%
With plaiter at the exit, including big batcher and one manually operated small batcher
Edge controlling: By E+L edge controller
Guide rails: Oil-free steel rails
One set of special centering and expanding system with traverse device for knitted fabrics with low height so as to avoid pulling of knitted fabrics
Number of chambers: 6, each 3 meters long
Installed power: Approx. 185 kW
One set of slant padder
With 1.5 meter steaming zone on the leveling frame
The pin infeed leveling frame is about 6 meters for knitted fabrics
Two motors in each chamber (7.5 kW each)
Two exhausters controlled by inverter
With Siemens PLC, Danfoss inverters for main drive and Schneider inverters for circulation fans
Non lubricated tracks and chains filled with long life imported grease
With twin air circulation system
With single motor drive system for two chains
Air-conditioned control cabinets
With two air cooling zones
With transport belt and its equipment
With control bridge
Pneumatically-operated vertical doors with thickness of 150 mm
Multi-section automatic width adjustment available for the whole machine
With gluing, trimming and suction device
With a steam humidifier before the chambers and a water atomizing device for moistening at the delivery
Cables supplied from control cabinets to machine
Parts Prepared by the Customer
Bricks or fire-bricks and insulating material (resisting heat up to 200 °C) that are laid under the base of the chambers
Exhaust pipes outside the chambers
Steam pipe, valves outside the machine
Gas or thermal oil pipes outside the chambers
Constructions
Process flow: Open-width feeding → infrared centering with traverse device → padding → manually operated disk type weft straightener → lower overfeeding → mechanical weft straightening → screw expanding → upper overfeeding → 4-finger selvedge uncurling → edge controlling → pinning → steam humidifying → gluing → stentering or thermosetting → air cooling (two sets) → depinning → edge trimming with suction → moistening → plaiting
Entry section
The entry frame to be formed by 4 mm thick steel plate, including guider rollers and an infra-red expanding and centering device. When the machine is used for knitted fabrics, inside threading guide rollers are employed with free rotation and little tension.
Infra-red expanding and centering device: Consisting of two expanding rollers driven by a motor and a centering executing device driven by an inverter-controlled motor and an infrared testing unit which sends the signals to the executing device.
Padder: Slant type, consisting of the frame, two padding rollers, a padding trough, two cylinders, expanding rollers, a motor and the pneumatic system
Padding rollers: Covered by 25 mm thick butadiene-acrylonitrile rubber, with hardness of about Shore 80°. The padding rollers are pressurized by two pneumatic cylinders with max. working pressure for each cylinder being 0.4 MPa.
Padding trough: Welded by stainless steel sheet, with guide rolls and a level control device inside. The trough can be turned over and reset by two cylinders.
Driving power: 7.5 kW, controlled by an inverter.
Feeding box, including safety protection board, an overfeeding device, a mechanical weft straightener and a screw expanding device
Safety protection board, made of plexiglass, and equipped with an interlock device, so that the machine cannot run if the safety protection board is not closed.
Overfeeding device: Including lower overfeeding and upper overfeeding driven separately by inverter-controlled motors, with diameter of each overfeeding roller being 219 mm.
Mechanical weft straightener: Two straightening rolls, mounted separately before the two screw expanding rolls, are driven by two motors through a speed reducer.
Screw expanding device: The function of screw expanding is to spread the fabric efficiently for easy pinning or clipping. There are two expanding rolls driven by a motor.
Fabric holding system, including an infra-red edge controller, a four-finger edge uncurler, synchronous conveying belts, a cloth supporting device and cloth openers both at the entry and the exit
Infra-red edge controller: When at the entry fabric edges deviate right or left, the edge controller will drive the 1st section of guide rails to follow the movements of the fabric selvedges, so as to ensure precise pinning or clipping, consisting of two infrared sensors, one controller and two drivers, with the advantages including ignorance of color and thickness of the fabrics, high sensitivity, low energy consumption and wide regulating range etc.
Four-finger uncurler: One set of uncurlers is mounted on the feeding rails before the infrared sensors. The four screw fingers are turned by motors to spread fabric edge completely before being pinned or clipped. The looping angle of the fabric edge on the finger can be changed by adjusting the relative position between the two pair of fingers for optimized uncurling effect.
Synchronous conveying belts: The two polyurethane belts are moved by a motor at the same speed as that of the main machine to transport fabric into the drying chambers.
Fabric support apparatus: It is used to support the fabric edges for clipping.
Pinning apparatus: Consisting of driven brush wheels driven by a 3-phase permanent magnetic motor of 750 W, a supporting roll and idle brush wheels.
Fabric support apparatus: It is used to support the fabric edges for clipping. When pins are used instead of clips, the apparatus will move away so that the pins may pass.
Pinning-off device: Consisting of aluminum pinning-off wheels at the exit of the machine.
Automatic stop device for pinning-off failure: When the fabric fails to be depinned, it will touch the rod of a limit switch which will stop the machine immediately. When clips are used instead of pins, the rod of the limit switch should be turned 90°.
Rails and width regulating apparatus, consisting of rails, chain tension regulating device, pin plates and chains, width regulating device
Rails: To be made of 6 mm thick steel sheet with anti-abrasive steel plates placed inside of the rails on which chain rollers are moving along. On the rails where clips or pin plates are running, special graphite ledges are mounted so that lubricants are no more needed there. The graphite ledges can work for 7200 hours or more and may be replaced easily.
The 1st section of rails, controlled by the edge controller, can move 100 mm right and left following the movement of the fabric edges. The 2nd section of rails...
Request a Quote
✓
Request sent
Thank you, our team will reply to you shortly.
Direct access to our team
Email American Plant & Equipment
Tell us what you want to buy, source, finance, or sell. A machinery specialist will follow up with you.
✓
Thank you. Your request is with the American Plant and Equipment team.
A machinery specialist will follow up with you.
Machinery updates
Subscribe to our email list
Tell us which industries you follow and we will send you the machines that match.
✓
You are on the list.
We will email you when machines that match your interests come in. Unsubscribe from any message.
