| 摘要 |
A filling device for a machine for filling containers, includes a spout having an outlet orifice and a feed orifice, and a feed duct connected to the feed orifice. A first actuating system is able to move a valve, which is mounted in the spout, between a closed position for closing the outlet orifice and at least one open position. A flow-regulating rod is mounted in a sliding manner in a hole in the feed duct and is able to be moved by a second actuating system between a high flow-rate position, in which the rod is located substantially outside the internal passage in the feed duct, and a low flow-rate position, in which the rod extends into the internal passage in order to reduce the passage cross section of the feed duct. |
| 主权项 |
1. A filling device for a machine for filling comprising
a filling spout formed by a tubular body having an internal passage with a longitudinal axis, an open lower axial end constituting an outlet orifice, and a feed orifice, a feed duct to supply said filling spout with filling product connected by a first end to the feed orifice, dosing means comprising a blocking system comprising a valve mounted mobile in said tubular body, a first actuating system able to longitudinally move said valve between a closed position in order to close the outlet orifice and at least one open position, and a flow regulation system mounted on the feed duct, wherein said flow regulation system comprises a flow-regulating rod, mounted in a sliding manner in a substantially sealed manner in a hole of said feed duct, said hole opening into an internal feed passage of said feed duct, and said hole being of a circular transverse section smaller than a circular transverse section of said internal passage, in order to allow a section of the internal passage to be reduced, and a second actuating system able to move the flow-regulating rod, between a retracted position, referred to as high flow-rate, wherein said rod is arranged substantially outside the internal feed passage of the feed duct, and a deployed position, referred to as low flow-rate, wherein said rod extends into said internal passage in order to reduce the circular transverse passage section of the feed duct; wherein said feed duct comprises an intermediate portion defining an intermediate central passage, an upstream portion defining an upstream passage and a downstream portion defining a downstream passage, and the flow-regulating rod being mounted in a sliding manner in an axial hole formed at an axial end of the intermediate portion of the feed duct, and said second actuating system able to move the flow-regulating rod axially in the intermediate central passage; wherein the intermediate central passage comprises from its axial end provided with said axial hole, a first portion having a transverse section greater than the transverse section of the flow-regulating rod, an intermediate portion and a second portion, said second portion having a transverse section less than that of the first portion, and the flow-regulating rod in its low flow-rate position extending into said intermediate portion and into the second portion; wherein the intermediate portion having an internal surface, which defines said intermediate central passage, is provided with a longitudinal recess extending along the intermediate portion and the second portion, and said recess defining a secondary lateral passage for the flow of the filling product in low flow-rate position. |
