A material filling apparatus for 3D printing fills materials into a material tank by a feeding part and includes a fixed sleeve with a first open end and a fixed end connected to the feeding part, a moving sleeve movably inserted and tightly fitted and interfered with the fixed sleeve, and a material output pipe inserted into the moving sleeve. The material tank is movably sheathed on the material output pipe. The moving sleeve has a second open end and a blocking end. The material output pipe has a connecting end and a material output end. The blocking end blocks the rear end of the material tank. The material tank squeezed by the filled material moves the connecting end towards the material output end and the rear end away from the material output end to push the blocking end and move the moving sleeve together with the material tank.

A material filling apparatus for 3D printing fills materials into a material tank by a feeding part and includes a fixed sleeve with a first open end and a fixed end connected to the feeding part, a moving sleeve movably inserted and tightly fitted and interfered with the fixed sleeve, and a material output pipe inserted into the moving sleeve. The material tank is movably sheathed on the material output pipe. The moving sleeve has a second open end and a blocking end. The material output pipe has a connecting end and a material output end. The blocking end blocks the rear end of the material tank. The material tank squeezed by the filled material moves the connecting end towards the material output end and the rear end away from the material output end to push the blocking end and move the moving sleeve together with the material tank.

The invention relates to a method and an apparatus for filling a container (2) which is open at the top with a pourable product, in particular with coffee powder or milk powder, using a filling head (3) which can be placed on the container (2) in a gas-tight manner and which has a filling channel (30) and a gas channel (32), wherein the container (3) is received in a gas-tight sleeve (6) which at least in a filling position adjoins the filling head (3) and/or the container (2) in a sealing manner in order to provide a gap (62) between the sleeve (6) and a container outer wall, which gap is closed in a gas-tight manner, wherein for a product discharge a reduced pressure up to a first pressure level is produced in the container (2) and in the gap (62), wherein, after the product discharge is finished, a gas supply to the container (2) and to the gap (62) is carried out, wherein, prior to the gas supply for a degassing of the container (2), a reduced pressure up to a second pressure level which is below the first pressure level is produced, and wherein during the gas supply an inert gas is supplied at least to the container (2).

The invention relates to a method and an apparatus for filling a container (2) which is open at the top with a pourable product, in particular with coffee powder or milk powder, using a filling head (3) which can be placed on the container (2) in a gas-tight manner and which has a filling channel (30) and a gas channel (32), wherein the container (3) is received in a gas-tight sleeve (6) which at least in a filling position adjoins the filling head (3) and/or the container (2) in a sealing manner in order to provide a gap (62) between the sleeve (6) and a container outer wall, which gap is closed in a gas-tight manner, wherein for a product discharge a reduced pressure up to a first pressure level is produced in the container (2) and in the gap (62), wherein, after the product discharge is finished, a gas supply to the container (2) and to the gap (62) is carried out, wherein, prior to the gas supply for a degassing of the container (2), a reduced pressure up to a second pressure level which is below the first pressure level is produced, and wherein during the gas supply an inert gas is supplied at least to the container (2).

A packing machine having a cleaning apparatus and a cleaning apparatus for cleaning a working section when filling bulk materials into containers, including a blowing strip having a first nozzle device and a second nozzle device through which an air stream can be guided temporarily in each case. In this case, the first and the second nozzle devices each have a fixed blowing-out direction, wherein the blowing-out directions of the first nozzle device and of the second nozzle device differ from one another. Furthermore, a control device is provided which is suitable and configured to control the first nozzle device and the second nozzle device at least temporarily in a temporally staggered manner. In a method for cleaning a working section using such a cleaning apparatus, the control device controls the first nozzle device and the second nozzle device in a temporally staggered manner.

A packing machine having a cleaning apparatus and a cleaning apparatus for cleaning a working section when filling bulk materials into containers, including a blowing strip having a first nozzle device and a second nozzle device through which an air stream can be guided temporarily in each case. In this case, the first and the second nozzle devices each have a fixed blowing-out direction, wherein the blowing-out directions of the first nozzle device and of the second nozzle device differ from one another. Furthermore, a control device is provided which is suitable and configured to control the first nozzle device and the second nozzle device at least temporarily in a temporally staggered manner. In a method for cleaning a working section using such a cleaning apparatus, the control device controls the first nozzle device and the second nozzle device in a temporally staggered manner.

A bag loading nozzle to confine a flow of material from upstream feed for downstream discharge into a bag having a spouted entrance. The nozzle comprising an interior wall presenting an inlet and an outlet, located intermediate of the inlet and the outlet and about the interior wall is a shape retaining tube through which the material is to pass from the feed into the bag. At least one actuable fluid inflatable collar at least substantially about the shape retaining tube is provided such that when actuated to its inflated form it will effect at least a substantial sealing with a fitted suitable bag from within its spouted entrance.

A bag loading nozzle to confine a flow of material from upstream feed for downstream discharge into a bag having a spouted entrance. The nozzle comprising an interior wall presenting an inlet and an outlet, located intermediate of the inlet and the outlet and about the interior wall is a shape retaining tube through which the material is to pass from the feed into the bag. At least one actuable fluid inflatable collar at least substantially about the shape retaining tube is provided such that when actuated to its inflated form it will effect at least a substantial sealing with a fitted suitable bag from within its spouted entrance.

The apparatus, for filling a flexible pouch having a bottom end, an opposite top end, and a pair of side edges extending between the bottom and top end, includes a filling station, a supply of compressed purging gas, and a gas purging station. The filling station includes a feeder that dispenses an amount of product into the pouch. The gas purge station is positioned subsequent to the filling station and includes a pair of gas lances. Each of the pair of gas lances have an outlet to discharge the purging gas into the pouch. The pair of gas lances being moveable between an inserted position and a withdrawn position. In the inserted position the pair of gas lances are disposed within the pouch a predetermined distance above the amount of product, and in the withdrawn position the pair of gas lances are provided above the top end of the pouch.

The apparatus, for filling a flexible pouch having a bottom end, an opposite top end, and a pair of side edges extending between the bottom and top end, includes a filling station, a supply of compressed purging gas, and a gas purging station. The filling station includes a feeder that dispenses an amount of product into the pouch. The gas purge station is positioned subsequent to the filling station and includes a pair of gas lances. Each of the pair of gas lances have an outlet to discharge the purging gas into the pouch. The pair of gas lances being moveable between an inserted position and a withdrawn position. In the inserted position the pair of gas lances are disposed within the pouch a predetermined distance above the amount of product, and in the withdrawn position the pair of gas lances are provided above the top end of the pouch.