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Automatic Weighing Machines
Components
Click on the letters on the image below to see what each part of the machine does or view each section using the links below.
| Product Feed | Weighing System | Control System |
Product Feed System
A) Product Hopper - receives material from bulk supply and acts as a reservoir of product.B) Hopper Gate - (Also known as hopper slide) used to regulate depth of product flowing from hopper along the primary (rear) feed tray.
C) Primary (Rear) Feed Tray - Transports product, under control, from the hopper onto the secondary (front) feed tray.
D) Vibrator Drive Units - Electro-magnetic vibratory feed units ensure smooth flow of products with accurate control of speed.
E) Secondary (Front) Feed-Tray - Accepts product from the rear tray and accelerates it away to achieve a smooth constant flow.
F) Fine Feed Shelf - (Also known as dribble shelf or finger). Fitted in to the front feed tray to divide it into two areas, a large or bulk section and a smaller or fine feed section. The fine feed shelf is normally custom designed to suit the products to be handled.
G) Level Detector - Normally a photo-electric or other similar device located over the rear section of the front feed tray. The purpose is to control the amount of product on the front tray by switching the rear tray off when product is sensed and on when no product is present. Correct depth of product is ensured by the adjustment of the level detector.
H) Bulk Gate - A gate that closes off the bulk (large) section of the front feed tray during the period in the feed cycle when only fine feed is required. Can be pneumatic or electrically operated depending on the machine type.
I) Fine Trap Box - A small catch box located at the outfeed end of the fine feed shelf through which product normally flows. When the required (target) weight is achieved the trap-box lid closes to catch any product that has left the feed system but not reached the weigh-pan thus reducing over-weights.
J) Outlet Chute - Guides product discharging from the weigh-pan into the desired receptacle (bag, carton, packaging machine etc).
K) Outlet Chute Extensions - Adapt the outlet chute to suit different sizes of containers being filled.
Weighing System
L) Loadcell Weighing Mechanism - Precision device for converting an applied weight into electrical units. All Easiweigh machines are fitted with loadcells that have full overload protection in all direction to minimise possible damage due to mis-use.M) Weighpan - Basically an open-top box with lids at the bottom end into which the product is weighed. The lids can only open when correct weight is achieved and on receipt of an external command or signal.
Control System
All the Easiweigh controls are microprocessor based and are custom designed and manufactured to control all functions of the weighing machine operation. Various systems are available but all are simple to operate, requiring minimal skill or technical know-how. All systems require only a standard, single phase, electrical supply.
Easiweigh are manufacturers of Automatic Weighing Equipment, Packaging Machinery Sales and Service.