초록 ▼

An improvement in method and apparatus for continuously folding, heating, and tacking to the sides of the package panel the excess packaging material created by forming the package from a web of polyfoil material is disclosed. The method and apparatus is particularly useful in form, fill, and seal m

An improvement in method and apparatus for continuously folding, heating, and tacking to the sides of the package panel the excess packaging material created by forming the package from a web of polyfoil material is disclosed. The method and apparatus is particularly useful in form, fill, and seal machines that form a plurality of aseptic sealed packages from a continuously advancing tube filled with a product, and incorporate a plurality of package receiving means mounted on a continuously advancing structure that forms sealed product filled packages into rectangular finished bricks by squaring the package, heating the excess material, folding the excess material against the package until it cools to thereby tack it.

대표청구항 ▼

Apparatus for forming a substantially rectangular container from a sealed package made of a web material having an outer thermoplastic coating, the package having a top panel, side panels, bottom panel, and excess packaging material including tabs and side seams, comprising: an endless conveyor belt

Apparatus for forming a substantially rectangular container from a sealed package made of a web material having an outer thermoplastic coating, the package having a top panel, side panels, bottom panel, and excess packaging material including tabs and side seams, comprising: an endless conveyor belt having a pallet for receiving the package; means for squaring the package into a substantially rectangular cross section; a first guide means for folding the side seams against the package side panels as the package advances along the conveyor; a package forming wheel having a plurality of receptacles having flanges for receiving a package, the wheel having a means for rotating it about an axis; a transfer means for advancing a package from the endless conveyor into a package receptacle of the package forming wheel; means for squaring the corners of a package by pressing the package against the package receptacle flanges in the package forming wheel, thereby forming the excess material into corner tabs; heater means for heating the corner tabs and corresponding package panels as the package rotates by the source of heat, said heater means extending along a length of the package forming wheel periphery; and a plurality of pairs of tab folder members mounted on the package forming wheel in opposition and for rotation about the package, each pair of tab folder members being associated with a package receptacle, having an open position and a closed position whereby in closing about the package the folder members fold and hold the heated tabs against the heated sides and bottom of the package so that the heated thermoplastic layers stick and adhere together as they cool.