초록 ▼

Apparatus for supplying plastic wrapping film from a supply roll in which the film is folded to have a closed side edge and plies of the film open along an opposite side. The wrapping film is conveyed simultaneously with a stream of predetermined size product through a hot wheel to seal the open pli

Apparatus for supplying plastic wrapping film from a supply roll in which the film is folded to have a closed side edge and plies of the film open along an opposite side. The wrapping film is conveyed simultaneously with a stream of predetermined size product through a hot wheel to seal the open plies and form a tube enclosing the product, after which the tube and enclosed product is fed into a film sealing apparatus which cross seals and cuts the plastic tube transversely of its line of movement in a moving cycle in which the plastic tube is cut and sealed with the products individually wrapped and discharged. The film sealing apparatus is adjustable to be able to accommodate changes in the dimensions of products to be wrapped.

대표청구항 ▼

[ What is claimed is:] [1.] Apparatus for wrapping a product between the folded plies of a heat responsive film so the plies can be sealed to enclose the product in the film wrapping, the apparatus comprising:a) a conveyor system having first and second conveyor portions defining a horizontal path f

[ What is claimed is:] [1.] Apparatus for wrapping a product between the folded plies of a heat responsive film so the plies can be sealed to enclose the product in the film wrapping, the apparatus comprising:a) a conveyor system having first and second conveyor portions defining a horizontal path for the movement of a product, said path having a predetermined gap spacing between said first and second conveyor portions;b) means for depositing a product within the folded plies of said film on the first conveyor portion for movement over said gap spacing and onto said second conveyor portion;c) film sealing and cutting means vertically operable in said gap across the movement of said conveyor system;d) operable means to support said film sealing and cutting means in said gap spacing, said operable means having a movement from a first position in which said product within said folded plies approaches said gap space leading the product to a second position in which said product within said folded plies passes over said gap space to said second said conveyor;e) powered means connected to said operable means to effect the movement thereof, said powered means including first means in the form of an air cylinder to locate said operable means in a home position, second means in the form of a belt drive to move said operable means from said home position, and braking means in the form of a spring loaded cam to determine the position of return of said operable means to said home position.