State of the art Form Fill seal machines are designed to pack non free fllowing products into pouches formed from a roll of thin laminate/virgin film. Vertical Form, Fill, and Seal (VFFS) machines with Auger filler as a dozing unit are used in the industry for a wide variety of packaging applications. Various products like Ground spices, Flour, Food premixes, Talcum powder, are placed into formed pouches and then sealed automatically by the pneumatic jaw. The pouch material is flexible and typically heat-sealable laminate or virgin plastic. Fully Automatic form fill and seal machinesa do not requrie much of a operator interventions andoperator is only requires to load the material in the product hopper.
The operation of the FFS machine is divided into four functional areas a) weighing b) forming c) dosing & feeding, aligning and (4) closing, sealing, cutting. There can be another functional area as per the client requirement and that is batch mark registration through batch coding unit. Roll-fed flexible laminate film is unwound from a feeder roll loaded on the roller at the back of the machine. A dancing roller would be used to maintain a constant tension on the unwinding web of film. The unwinding motor and dancers are required for maintaining tension and maintaining critical accuracy in feed.
The film is threaded up over a forming collar and then down, forming the web into a tube. Auger filler works on the principle of positive displacement of screw which discharges the material in the pouches. Auger controller is a seperate modulaer unit on the composite control panel and the number of rotation of the screw and thus the volume of product can be set by a thumb wheel switches. For perishable food products, nitrogen flushing is executed to prolong the life of the product. A vertical overlap seam and bottom seal are applied. The pouch is then filled and a top seal is applied while a knife cuts the sealed pouch from the descending web of film. A mechanism can be provided to have a gasketting of the pouch. Pressure can be adjusted on kneif to have a individual package of the product or the chain of the product.
Microprocessor/PLC based controls helps to ease the operation of the machine.
Servo controlled Auger filler also can be provided to give high speed and accurate filling.
Salient Features :
• Unique Design for optimum efficiency and Easy Maintenance
• State of the art PLC /Microprocessor based controls with MMI for Hassel free operation
• Pneumatic sealing system for better seal quality
• Easy and quick roll changing design
• Easily accessible interior
• Capacity to handle various product and pack sizes through change parts
• High quality Pneumatic controls for better operations
• Modular construction with easy change over of dozing units.