CHARGING AND DISCHARGING MACHINE FOR COIL/FOIL ANNEALING FURNACES
Wesman offers Charging/Discharging machines for loading and unloading of the Foils/Coils along with the Charge Rack into Fixed hearth chamber furnaces for desired Coil/Foil Annealing. The Charging/Discharging machines can be common for various furnaces. The Charging/Discharging machines will have fork arms, which can move forward backward, up and down and move side ways. These machines can also be designed to rotate 180/360 Deg. The forward and back ward movement of fork arm on rollers will ensure movement of Coils/Foils into the furnace, the down ward and up ward movement will ensure proper positioning/pick up of Foils/Coils along with the Charge Rack on furnace hearth during loading and unloading. The rotation of the machine by 180/360 deg facilitates picking/keeping the Coils/Foils from the charging station located in front of the furnace. The charging machine can also move side ways on rails to facilitate to load into multiple furnaces.
The forward backward, up and down, and side ways movement can be electro-mechanically or hydraulically operated .The side ways movement in case of long span on rail and rotating movement will be only electro-mechanically operated.
The complete sequential operation of the Charging/Discharging machines are inter-locked with the heating profile of foil/coil annealing furnace through PLC or Relay based logic system.
CHARGING AND DISCHARGING MACHINE FOR ROTARY HEARTH FURNACES
Wesman offers machines of identical type, one meant for charging and the other for discharging of Billets one at a time. These machines shall work in synchronization with the movement of the hearth following a particular sequence. Necessary interlocks will be provided in the electrical control system to ensure safety during the sequence of operation. The machine will have internally water cooled arms and a pair of tongs to grip the material. For lifting and lowering, for grabbing and releasing of Billets by the tongs, hydraulic cylinders shall be provided. For forward and backward (reverse) movement of the arms, hydraulic motors shall be provided.
Both charging & discharging machines will travel between fixed points of pick-ups or dropping/lowering. Provision will be kept for manual withdrawal of the machine arms out of the furnace in case of power failure.
CHARGING AND DISCHARGING MACHINE FOR TRAY PUSHER TYPE HEAT TREATMENT FURNACES
Wesman offers machines of identical type, one meant for picking the charge trays from the hardening furnace after desired heat treatment and transferring the same to the quenching tank for quenching and the other for taking out the charge trays from the tempering furnace after tempering cycle and transferring the same to the cooling tank and subsequently to the unloading station of one tray at a time. These machines shall work in synchronization with the movement of the trays inside the hardening and the tempering furnace as per desired heating cycle following a particular sequence. Necessary interlocks will be provided in the electrical control system to ensure safety during the sequence of operation. The machine will have fork arms to pick up the charge trays . For lifting and lowering and for forward and back ward movement of trays can be hydraulically/electro-mechanically operated.
Both charging & discharging machines will travel between fixed points of pick-ups or dropping/lowering. Provision will be kept for manual withdrawal of the machine arms out of the furnace in case of power failure.
CHARGE PUSHER
Wesman offers charge-pushing mechanism for pushing the material inside the furnace, through hydraulically/electro-mechanically operated charge pusher mechanism. The material will be pre-positioned in front of the charge end of the furnace through Charge Roller Table. The hydraulically operated pusher mechanism will push the material up to required distance and at desired speed. The pusher is provided with hydraulic/electro-mechanical system along with necessary accessories for proper operation.
Pusher mechanism will push the charge into the furnace various rows as per the requirement. The operation of the Charge Pusher Mechanism can be interlocked with main furnace PLC or separate relay logic system with control desk, which would be located near the charge end of the furnace for convenient operation of the pusher mechanism.
EJECTOR
Wesman offers Ejector system for discharging of the hot billets from the furnace to the discharge roller table. The Ejector can be electro-mechanically/hydraulically operated. Necessary guide rolls & support rolls will be provided throughout the ejector rod for uniform loading. Necessary water piping will be provided around the ejector rod for uniform spray of water. The ejector machine shall have facility for cross movement for positioning. The cross movement shall be effected by means of a hydraulic system. The ejector rod will have adequate stroke to push the billets onto the furnace discharge table. However, to reduce the stroke of ejector a furnace pull out roll is provided.
PINCH ROLL
Wesman offers pull out roll assembly, which will work in conjunction with discharge ejector mechanism. The pull out roll will consist of two (2) driven rolls (one stationary bottom roll and the other hydraulically clamping top roll). Both the rollers will be driven by a pinion stand, which will be driven by electro-mechanical/Hydraulic drive unit.
Both the rollers shall be of solid steel rolls of minimum 300 mm. dia supported on anti-friction bearings and housed in a water-cooled bearing block.
SLAB EXTRACTOR
Wesman offers slab extractor for discharging slabs one by one from continuous Re-heating furnaces. Hot slabs will come near the discharge end by the pusher mechanism and one Slab at a time will be discharged by extractor and will be placed on the discharge rollers. There will be number of slab extractors, one for each row of slabs . The extractor will have required number of forks to lift the slabs from furnace and place on the discharge rollers. The forward and backward movement will be operated Electro-mechanically and lifting/lowering of forks will be hydraulically operated.
CHARGING GRATE
Wesman offers charging grate assembly for storing of steel billets and transporting one billet at a time on the inlet/feeding roller table for feeding into reheating furnaces. The charging grate includes a transport mechanism which can by electro-mechanically/hydraulically operated. This mechanism is sequentially operated and is interlocked with furnace feeding mechanism for safety.
INLET/OUTLET ROLLER TABLE
Wesman offers inlet roller table for bringing the billets/blooms/slabs from the storing area and feeding the billets/blooms/slabs one by one into the reheating/heat treatment furnaces. The roller can be driven individually or in groups by electro-mechanical drives with or without VVVFD control. The operation of the rollers can be interlocked with main PLC of the furnace or by separate relay logic system housed in a control desk located nearby. Charge rollers located inside the furnace, can be provided with water cooling system.
Wesman also offers discharge roller table for discharging hot billets out of the reheating/heat treatment furnaces. These rollers are normally water cooled and driven individually or in gropes by electro-mechanical drive units with or without VVVFD control. The operation of these rollers can be interlocked with main PLC of the furnace or by separate relay logic system housed in a control desk located nearby. These roller tables can also be provided with electro-mechanical/hydraulic job kick-in and kick-out mechanisms.
LINK BELT/MESH BELT CONVEYORS
Wesman offers link belt mesh conveyors for transporting steel leaves/bars/coils and other small steel components through heat treatment furnaces. These conveyors are normally multi-strand type driven electro-mechanically through sprockets. The operations can be index type or can be with variable speed drive.
SLAT BELT CONVEYOR
Wesman offers slat belt conveyor for transporting coil springs/steel balls etc. through heat treatment furnaces. These conveyors are normally multi-strand type driven electro-mechanically through sprockets. The operations can be index type or can be with variable speed drive.
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