초록 ▼

A machine and method for filling bags with liquid through spouts attached to the bags, wherein a piston within a filling head that operates to control flow of the liquid from the filling head is also extended out of the filling head and into the spout, after the bag is filled, in order to push remai

A machine and method for filling bags with liquid through spouts attached to the bags, wherein a piston within a filling head that operates to control flow of the liquid from the filling head is also extended out of the filling head and into the spout, after the bag is filled, in order to push remaining material from the spout and through is bottom opening into the bag. The spout bottom opening is then closed, after which any remaining material adhering to the walls inside the spout and surfaces of the filling head are cleaned by forming a chamber between them through which a cleaning fluid is passed. This machine and method are particularly useful when filling bags with highly viscous and/or sticky liquids, such as thick food products. They avoid a result of having either to distribute messy bags of product with material remaining adhered to the outside of the spout and/or bag, or to first remove this material by an additional cleaning step.

대표청구항 ▼

[ It is claimed:] [1.] A method of filling a flexible bag with liquid material through an open end of a rigid attached spout, comprising:abutting a filling head against the open end of the spout in a manner that a passage within the spout is aligned with a liquid passage within the filling head,open

[ It is claimed:] [1.] A method of filling a flexible bag with liquid material through an open end of a rigid attached spout, comprising:abutting a filling head against the open end of the spout in a manner that a passage within the spout is aligned with a liquid passage within the filling head,opening the filling head passage to allow liquid material to flow under pressure therefrom through the spout passage and into the bag,closing the filling head passage to liquid flow after the bag is filled with the liquid material,thereafter forcing liquid material remaining in the spout passage into the bag through a bottom opening of the spout,thereafter closing off the bottom opening of the spout to the flow of liquid material between the spout passage and the bag, andthereafter removing liquid material remaining in the spout passage through the open end of the spout.