FR3107513A1 - FILLING MACHINE INCLUDING A CLEANING CYCLE - Google Patents

Abstract

FILLING MACHINE INCLUDING A CLEANING CYCLE The invention relates to a filling machine comprising a plurality of filling nozzles (104), each being supplied alternately with a liquid product or a washing liquid, and for each filling nozzle (104), a recovery system (116). movable relative to said filling spout (104) between a recovery position and a retracted position, where each filling spout (104) comprises a skirt (210) which is movable in vertical translation around the lower end and which comprises first securing means (214), and a drive system (212) which moves the skirt (210) from a high position to a low position and vice versa, where each recovery system (116) comprises a base (302) and a cup (304) comprising second securing means (306) adapted to cooperate with the first securing means (214) to secure the cup (304) and the skirt (210) in the high position. Fig. 3

Description

FILLING MACHINE WITH A CLEANING CYCLE

The present invention relates to a filling machine which includes a cleaning cycle for cleaning the pipes of the filling machine.

STATE OF THE PRIOR ART

A state-of-the-art filling machine comprises a mobile turret in rotation around a vertical axis, and which carries a plurality of filling spouts.

The filling machine comprises a reservoir in which a liquid product is stored and a pipe which supplies each filling spout.

At the same time, a transport system transports empty containers, such as cans, and each container is positioned under a filling spout which releases the liquid product to fill the container. When the container is full, it is evacuated while an empty container replaces it.

When the liquid product needs to be changed, it is necessary to clean the pipe and the filling spouts. To this end, the filling machine comprises a washing tank in which a washing liquid is stored and which is fluidically connected to the pipeline through a valve.

The valve can alternately assume a delivery position which allows the flow of liquid product from the tank into the line and the fill spouts to the containers and stops the flow of wash liquid from the wash tank into the line, and a washing position which stops the flow of the liquid product in the pipe and allows the flow of the washing liquid from the wash tank into the pipe and the filling spouts.

If such a machine is efficient, it is necessary to find a system which facilitates the circulation of the washing liquid in the filling spouts.

An object of the present invention is to provide a filling machine which allows washing of the filling machine.

For this purpose, a filling machine is proposed comprising:

- a plurality of filling spouts where each comprises a hollow cylinder supplied alternately with a liquid product intended to fill containers or with a washing liquid, and the lower end of which is pierced with flow orifices,

- for each filling spout, a recovery system mounted to move relative to said filling spout between a recovery position in which it is placed under the lower end when the hollow cylinder is supplied with the washing liquid and a retracted position in which it is not placed under the lower end when the hollow cylinder is supplied with the liquid product,

wherein each filling spout comprises a skirt which is movable in vertical translation around the lower end and which comprises first securing means, and a drive system which moves the skirt from a high position to a low position and vice versa ,

where each recovery system has:

- a base and

- a cup placed on the base and comprising second fastening means adapted to cooperate with the first fastening means for fastening the cup and the skirt in the high position, and where the cup has a recess and an evacuation pipe which extends the obviously,

and where in the recovery position and in the high position of the skirt, the cup is resting against the lower end and the flow orifices open into the recess.

A filling machine with such a recovery system facilitates the washing of filling spouts.

Advantageously, the cup is mounted articulated on the base.

Advantageously, the base comprises a plurality of vertical bores, for each bore, the cup carries a rod which extends inside the bore, and for each bore, the filling machine comprises a spring which is arranged between a stopper of the rod and a stopper of the bore and which forces the cup vertically against the base.

Advantageously, the drive system comprises a cylindrical sleeve which extends in a sealed manner around the hollow cylinder and a disk integral with the hollow cylinder and which extends in a sealed manner inside the cylindrical sleeve in order to separate the volume interior of the cylindrical liner into two isolated chambers on either side of the disc, and for each chamber, an air duct which opens into said chamber and which is fluidically connected to a source of compressed air, and the cylindrical liner is attached to the skirt.

Advantageously, the filling machine comprises a first support to which the filling spouts (104) are fixed, a second support to which the recovery systems are fixed, and a secondary drive system which comprises a displacement system and a blocking system and which alternately ensures the displacement in rotation around a vertical axis of rotation and the blocking of the second support with respect to the first support.

Advantageously, the locking system comprises two latches fixed to the first support and angularly offset from each other, a bolt mounted so as to be able to rotate on the second support between a locking position and an unlocking position, and a mechanism actuation which ensures the movement of the bolt.

According to a particular embodiment, the angular displacement of the second support relative to the first support is equal to the angle between two successive filling spouts.

According to a particular embodiment, the angular displacement of the second support relative to the first support is equal to half the angle between two successive filling spouts.

Advantageously, each filling spout has an inlet orifice allowing the introduction of a liquid into the hollow cylinder, the filling spouts are divided into two groups and a filling spout of a first group is inserted between two spouts filling of a second group and vice versa, the filling machine comprises a dispensing system which comprises a first reservoir of product containing a first liquid product intended to supply the filling spouts of the first group and a second reservoir of product containing a second liquid product intended to supply the filling spouts of the second group, the distribution system comprises a first washing tank containing a first liquid washing liquid intended to supply the filling spouts of the first group and a second washing tank containing a second liquid intended to supply the filling spouts of the second group, the distribution system comprises a first supply pipe fluidically connected to the inlet orifice of each filling spout of the first group and a first valve fluidically connected between the first product tank, the first washing tank and said first supply line, the distribution system comprises a second supply line fluidly connected to the inlet port of each filling spout of the second group and a second valve fluidically connected between the second product tank, the second washing tank and said second supply pipe.

The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in relation to the attached drawings, among which:

is a perspective view of a filling machine according to a particular embodiment of the invention,

is a view in section through a vertical plane of a filling spout according to the invention in a filling position,

is a view similar to FIG. 2 in a waiting position,

is a view similar to FIG. 2 in a cleaning position,

is a top view and in section along the line VV of FIG. 3,

is a side view and in section along the line VI-VI of FIG. 5, and

is a top view of the filling machine of FIG. 1.

DETAILED DESCRIPTION OF EMBODIMENTS

Fig. 1 shows a filling machine 100 according to a particular embodiment of the invention, the operation of which is described below.

The filling machine 100 comprises a frame and a turret 102 which comprises a first support 102a and a second support 102b. The turret 102 is rotatably mounted on the frame around a vertical axis of rotation 52 and, for this purpose, the filling machine 100 comprises a main drive system which drives the turret 102 in rotation. The main drive system is for example a motor.

The first support 102a and the second support 102b are mounted movable relative to each other and in the embodiment of the invention presented in FIG. 1, they are mounted rotatably relative to each other around the axis of rotation 52. To this end, the filling machine 100 comprises a secondary drive system 250 which alternately moves or blocks the second support 102b relative to the first support 102a.

The first support 102a carries a plurality of filling spouts 104 where each is fed alternately with a liquid product intended to fill containers 50 or with a washing liquid.

For each filling spout 104, the second support 102b carries a recovery system 116 which is intended to be positioned under the filling spout 104 during the washing of said filling spout 104.

In the embodiment of the invention presented here, the filling machine 100 is a bi-product machine, that is to say, it can fill containers 50 alternately with a first liquid product or a second liquid product.

In this embodiment, there is a recovery system 116 for two neighboring filling spouts 104 and it is placed alternately under one or the other of the filling spouts 104. The secondary drive system 250 then drives the second support 102b in a first direction to place the recovery system 116 under one of the two filling spouts 104 and in a second direction opposite to the first direction to place the recovery system 116 under the other of the two filling spouts 104 .

But in the case of a single-product filling machine, there is a recovery system 116 per filling spout 104. The secondary drive system 250 then drives the second support 102b in a first direction to place the recovery 116 under the filler spout 104 and in a second direction opposite to the first direction to release the recovery system 116 from below the filler spout 104.

The filling machine 100 comprises a distribution system 120 which is arranged to supply each filling spout 104 alternately with a liquid product intended to fill containers 50 or with a washing liquid which washes the filling spout 104 or no liquid.

In the case of a single-product machine, all the filling nozzles 104 are supplied simultaneously either with the same liquid product or with a washing liquid.

In the case of the bi-product machine of FIG. 1, the filling spouts 104 are divided into two groups and a filling spout 104 of a first group is inserted between two filling spouts 104 of a second group and vice versa. In this case, when the filling spouts 104 of the first group are supplied with the same liquid product, the filling spouts 104 of the second group are all supplied with the washing liquid or are not supplied, and vice versa. Thus when part of the filling machine 100 fills containers 50 with a liquid product, the other part of the filling machine 100 is washed using a washing liquid, thus allowing washing in masked time .

Fig. 2 shows the filling spout 104 with the container 50. The filling spout 104 comprises a hollow tube 202 which is integral with the first support 102a and is fed alternately with a liquid product or with a washing liquid. The interior of the hollow tube 202 is supplied by the distribution system 120 and the lower end of the hollow tube 202 constitutes a seat 206 which is pierced with at least one flow orifice 208 to let the liquids present in the hollow tube 202.

When a filling spout 104 is fed with a liquid product, a container 50 is guided under said filling spout 104 to be filled with said liquid product. When a filling spout 104 is supplied with a washing liquid, the recovery system 116 is positioned under said filling spout 104 to recover said washing liquid and evacuate it out of the filling machine 100.

Via the second support 102b which is movable, for each filling spout 104, the recovery system 116 is movable relative to said filling spout 104 between a recovery position in which the recovery system 116 is under the end bottom when the hollow cylinder 202 is supplied with the washing liquid and a retracted position in which the recovery system 116 is not under the lower end when the hollow cylinder 202 is supplied with the liquid product in order to leave room for the container 50. In the embodiment of FIG. 1, the movement from the recovery position to the retracted position is a rotation of the second support 102b relative to the first support 102a, but any other movement is possible.

In the case of a single-product machine, all the recovery systems 116 are simultaneously in the recovery position or in the retracted position.

In the case of the bi-product machine, each recovery system 116 is always in the recovery position for the filling spouts 104 of one of the two groups and in the retracted position for the filling spouts 104 of the other of the two groups.

The filling spout 104 also comprises a shutter 204 mounted so as to move in vertical translation inside the hollow tube 202 between a closed position in which the shutter 204 bears against the seat 206 to close each flow orifice 208 and a open position in which the shutter 204 is disengaged from the seat 206 to release each flow orifice 208. The displacement of the shutter 204 is carried out by any suitable drive means such as for example a jack.

Fig. 4 shows the filling spout 104 in the washing position and FIG. 3 shows filler spout 104 in a standby position.

The filling spout 104 also includes a skirt 210 which extends around the hollow tube 202 and which is movable in vertical translation. The skirt 210 comprises first securing means 214 which here take the form of a collar in the lower part of the skirt 210.

The filling spout 104 also comprises a drive system 212 which moves the skirt 210 in translation from a high position to a low position and vice versa.

Each recovery system 116 comprises a base 302 and a cup 304 placed on the base 302 and comprising second securing means 306 adapted to cooperate with the first securing means 214 to secure the cup 304 and the skirt 210 in the high position when the recovery system 116 is in the recovery position. The second securing means 306 here take the form of two hooks which are positioned above the flange.

The cup 304 has a recess 308 and a discharge pipe 310 which extends the recess 308. The recess 308 collects the washing liquid which leaves the flow orifices 308 when the shutter 204 is in the open position and the pipe outlet 310 sends the washing liquid out of the filling machine 100.

In the recovery position and in the high position of the skirt 210, the cup 304 bears against the lower end of the hollow tube 202 and each flow orifice 208 opens into the recess 308.

From Fig. 2, in the retracted position and in the high position of the skirt 210, the drive system 212 moves the skirt 210 into the low position, then the secondary drive system 250 moves the second support 102b and the recovery systems 116 into position recovery, here by rotation of the second support 102b relative to the first support 102a, which corresponds to FIG. 3, the hooks are then above the flange. The drive system 212 moves the skirt 210 into the high position (FIG. 4), which causes the cooperation of the first securing means 214 and the second securing means 306, and the lifting of the cup 304 which comes to be pressed under the lower end of the filler spout 104 so that each flow orifice 208 opens into the recess 308.

After opening of the shutter 204, the washing liquid will flow into the recess 308 to be evacuated by the evacuation pipe 310. The reverse movements make it possible to return to the initial position, and in particular to place each system recovery 116 under another filling spout 104 in the case of a bi-product 100 filling machine.

The bearing of the cup 304 against the lower end of the filling spout 104 is carried out by means of a horizontal support surface 216 of the lower end and a seal 312 which is arranged around the recess 308 and which comes against the bearing surface 216.

The bearing of the cup 304 against the lower end of the filling spout 104 also allows the use of a higher washing pressure than in the case of the state of the art due to the good sealing of the 'together.

If the filling spout 104 has a positioning defect with respect to the vertical direction, it is necessary to guarantee a good positioning of the cup 304 against the lower end.

Fig. 5 and FIG. 6 show means which guarantee the correct positioning of the cup 304.

The base 302 has a housing 502 in which the cup 304 is housed and the cup 304 has an edge 314 which rests on the base 302. The housing 502 is slightly larger than the cup 304 to allow radial movement of the cup 304 The clearance between them is for example of the order of 2 mm. This radial displacement of the cup 304 makes it possible to dissociate each cup 304 and avoids having a hyperstatic system.

The base 302 comprises a plurality of vertical bores 504 here five in number distributed around the cup 304.

For each bore 504, the cup 304 carries a rod 602 which extends inside the bore 504 and for each bore, the filling machine 100 comprises a spring 604 which is arranged between a stop of the rod 602 and an abutment of the bore 504.

Spring 604 constrains cup 304 vertically against base 302.

Here each rod 602 is a screw which is screwed inside a tapped hole of the edge 314 and whose head constitutes the abutment of the rod 602. The abutment of the bore 504 is here a shoulder at the upper end of the bore 504.

Thus, when the filling spout 104 is offset vertically, the cup 304 is lifted relative to the base 302, each rod 602 then takes an orientation constrained by the movement of the cup 304 and each spring 604 is then more or less compressed according to the orientation taken by the cup 304.

To allow angular movement of each rod 602, the installation has a gap between the rod 602 and the bore 504. This gap is of the order of 1 mm.

Each cup 304 is thus mounted articulated on the base 302 and can be oriented with respect to the lower end to rest against it during washing.

To limit the radial deformations of the spring 604, a ring 606 is arranged between the spring 604 and the rod 602.

In the embodiment of the invention shown in Figs. 2 to 4, the drive system 212 takes the form of a pneumatic cylinder. The drive system 212 comprises a cylindrical sleeve 220 which extends in a sealed manner around the hollow cylinder 202 and a disk 222 integral with the hollow cylinder 202 and which extends in a sealed manner inside the cylindrical sleeve 220 in order to to separate the interior volume of the cylindrical sleeve 220 into two isolated chambers on either side of the disc 222. The cylindrical sleeve 220 is integral with the skirt 210.

The tightness of the cylindrical sleeve 220 is achieved by two seals 224 and 226 which are integral with the cylindrical sleeve 220 and which are in contact with the outer surface of the hollow cylinder 202. One of the seals 224 is arranged in the upper part of the sleeve cylindrical 220 and the other seal is arranged in the lower part of the cylindrical sleeve 220.

Disc 222 is sealed by a seal 228 which is integral with disc 222 and which is in contact with the inner surface of cylindrical sleeve 220.

For each chamber, the drive system 212 comprises an air line 230, 232 which opens into said chamber and which is fluidically connected to a source of compressed air. The two air lines 230 and 232 are supplied alternately and when one of the air lines 230, 232 is supplied, the other chamber 232, 230 is exhausted.

Thus, depending on whether one or the other of the air ducts 230, 232 is supplied with compressed air, the pressure in the associated chamber increases and causes the volume of said chamber to increase and therefore the displacement of the cylindrical liner. 220 and therefore the skirt 210.

In Fig. 2 and FIG. 4, the compressed air is in the upper chamber to ensure that the skirt 210 is placed in the upper position. In FIG. 3, the compressed air is in the lower chamber to ensure the lowering of the skirt 210.

To guide the skirt 210 and the cylindrical sleeve 220 vertically and prevent their rotation around the vertical axis, the filling machine 100 comprises a vertical guide 240 secured to the first support 102a and the skirt 210 and the sleeve 220 are secured to a slider 242 which slides along the guide 240.

Fig. 7 shows a top view of the filling machine 110 and of the secondary drive system 250 which alternately ensures the displacement and the blocking of the second support 102b with respect to the first support 102a. The secondary drive system 250 comprises a locking system 252 and a displacement system 254.

The locking system 252 ensures the locking of the second support 102b relative to the first support 102a, and the displacement system 254 ensures the displacement of the second support 102b relative to the first support 102a.

The locking system 252 comprises two latches 256a-b fixed to the first support 102a, a bolt 258 mounted so as to be able to rotate on the second support 102b between a locking position and an unlocking position, and an actuating mechanism 260 which ensures the displacement of the bolt 258 from the locking position to the unlocking position and vice versa. In the locking position, the bolt 258 is engaged with one of the strikers 256a-b to ensure blocking and in the unlocking position, the bolt 258 is not engaged with one of the strikers 256a-b to allow the displacement of the second support 102b.

In the embodiment of the invention presented in FIG. 7, the displacement of the second support 102b is a rotation around the axis of rotation 52 and the two latches 256a-b are angularly offset from each other by an angle corresponding to the desired angle of rotation between the second support 102b and the first support 102.

In the case of a bi-product filling machine, the angle of rotation is equal to the angle between two successive filling spouts 104 to move the recovery system 116 alternately under each of the two filling spouts 104. angle between two successive filling spouts 104 is measured relative to the axis of rotation 52. The angular displacement of the second support 102b relative to the first support 102a is thus equal to the angle between two successive filling spouts 104.

In the case of a single-product filling machine, the angle of rotation is for example equal to half the angle between two successive filling spouts 104 to move the recovery system 116 between two successive filling spouts 104 . The angle between two successive filling spouts 104 is measured relative to the axis of rotation 52. The angular displacement of the second support 102b relative to the first support 102a is thus equal to half the angle between two filling spouts 104 successive. The angle of rotation may be different depending on the shape of the containers 50.

The actuating mechanism 260 here takes the form of a cylinder whose tube is fixed to the second support 102b and whose rod is fixed to the bolt 258. In addition, here, the actuating mechanism 260 comprises a spring 262 which recalls the bolt 258 in the locking position. Depending on the movement of the rod, the bolt 258 will move to the locking position or the unlocking position.

The displacement system 254 comprises a jack 264 whose tube is fixed to the second support 102b and whose rod is fixed to the first support 102a. When the bolt 258 is in the unlocked position, the displacement of the rod of the displacement system 254 will cause the displacement of the second support 102b relative to the first support 102a in one direction or the other.

In the embodiment of the invention presented in FIG. 1, the first support 102a takes the form of a crown and the second support 102b takes the form of a plate mounted movably inside the crown. The crown has a rim which extends towards the inside of the crown and the plate rests on said rim and it is held in abutment against the rim by first rollers 122 rotatably mounted on the crown around a horizontal axis and coming bearing against the upper surface of the plate and second rollers 124 rotatably mounted on the plate around a vertical axis and bearing against the inner surface of the crown. Of course any other arrangement is possible.

In the particular embodiment presented here, each filling spout 104 has an inlet 106 allowing the introduction of a liquid into the filling spout 104 and more particularly into the hollow cylinder 202. Each inlet 106 is here in the upper part of the filler spout 104.

In the case of a bi-product filling machine 100, the dispensing system 120 comprises a first product reservoir 110 containing a first liquid product intended to supply the filling spouts 104 of the first group and a second product reservoir 111 containing a second liquid product intended to supply the filling spouts 104 of the second group.

The distribution system 120 also comprises a first washing tank 112 containing a first liquid washing liquid intended to supply the filling spouts 104 of the first group and a second washing tank 113 containing a second washing liquid intended to supply the spouts of filling 104 of the second group. According to a particular embodiment, the first washing tank 112 and the second washing tank 113 can be common to the two groups.

The distribution system 120 includes a first supply line 108 which is fluidically connected to the inlet 106 of each filling spout 104 of the first group and a first valve 114 which is fluidically connected between the first reservoir of product 110 , the first washing tank 112 and said supply line 108.

The distribution system 120 comprises a second supply line 109 which is fluidically connected to the inlet 106 of each filling spout 104 of the second group and a second valve 115 which is fluidically connected between the second reservoir of product 111 , the second washing tank 113 and said second supply pipe 109.

The selection of the product tank 110, 111 or the washing tank 112, 113 to supply the intake pipe 108, 109 is made via the valve 114, 115 which is in particular a three-way valve. The position of each valve 114, 115 is controlled by a filling machine control unit 100.

The control unit also controls the various cylinders, motors, compressed air sources.

Thus, each valve 114, 115 can alternately take a delivery position which allows the flow of the liquid product or a washing position which allows the flow of the washing liquid or a stop position which prevents any flow in the pipeline. supply 108, 109. The control unit controls each valve 114, 115 in an offset manner, that is to say that when one valve 114, 115 is in the delivery position, the other valve 115, 114 is in the wash or stop position.

When a filling spout 104 is fed with the liquid product, a container 50 passes under said filling spout 104 which lets the liquid product flow into the container 50. The container 50 is moved in a known manner by any system appropriate transportation. The filling principle consists in rotating the turret 102 so that each filling spout 104 follows a particular container 50 which at the same time moves under the filling spout 104 to follow it. Such a principle and the means for implementing it are known to those skilled in the art.

Claims (9)

Filling machine (100) comprising:
- a plurality of filling spouts (104) where each comprises a hollow cylinder (202) fed alternately with a liquid product intended to fill containers (50) or with a washing liquid, and whose lower end is pierced with at least one flow orifice (208),
- for each filling spout (104), a recovery system (116) mounted to move relative to said filling spout (104) between a recovery position in which it is placed under the lower end when the hollow cylinder (202) is supplied with the washing liquid and a retracted position in which it does not move under the lower end when the hollow cylinder (202) is supplied with the liquid product,
wherein each filling spout (104) comprises a skirt (210) which is movable in vertical translation around the lower end and which comprises first securing means (214), and a drive system (212) which moves the skirt (210) from a high position to a low position and vice versa,
where each recovery system (116) comprises:
- a base (302) and
- a cup (304) placed on the base (302) and comprising second securing means (306) adapted to cooperate with the first securing means (214) to secure the cup (304) and the skirt (210) in position high, and where the cup (304) has a recess (308) and an evacuation pipe (310) which extends the recess (308),
and where in the recovery position and in the high position of the skirt (210), the cup (304) bears against the lower end and each flow orifice (208) opens into the recess (308). Filling machine (100) according to claim 1, characterized in that the cup (304) is mounted articulated on the base (302). Filling machine (100) according to Claim 2, characterized in that the base (302) comprises a plurality of vertical bores (504), in that, for each bore (504), the cup (304) carries a rod (602) which extends inside the bore (504), and in that, for each bore (504), the filling machine (100) comprises a spring (604) which is arranged between a stop of the rod (602) and an abutment of the bore (504) and which forces the cup (304) vertically against the base (302). Filling machine (100) according to one of Claims 1 to 3, characterized in that the drive system (212) comprises a cylindrical jacket (220) which extends in a sealed manner around the hollow cylinder (202) and a disk (222) integral with the hollow cylinder (202) and which extends in a sealed manner inside the cylindrical jacket (220) in order to separate the interior volume of the cylindrical jacket (220) into two chambers isolated on either side on the other side of the disc (222), and for each chamber, an air duct (230, 232) which opens into said chamber and which is fluidly connected to a source of compressed air, and in that the cylindrical jacket (220) is secured to the skirt (210). Filling machine (100) according to one of Claims 1 to 4, characterized in that it comprises a first support (102a) to which the filling spouts (104) are fixed, a second support (102b) to which the recovery (116) are fixed, and a secondary drive system (250) which comprises a displacement system (254) and a blocking system (252) and which alternately ensures rotational displacement around an axis of rotation ( 52) vertical and the blocking of the second support (102b) relative to the first support (102a). Filling machine (100) according to Claim 5, characterized in that the blocking system (252) comprises two latches (256a-b) fixed to the first support (102a) and angularly offset with respect to each other, a bolt (258) rotatably mounted on the second support (102b) between a locking position and an unlocking position, and an actuating mechanism (260) which moves the bolt (258). Filling machine (100) according to one of Claims 1 to 6, characterized in that the angular displacement of the second support (102b) relative to the first support (102a) is equal to the angle between two filling spouts (104 ) successive. Filling machine (100) according to one of Claims 1 to 6, characterized in that the angular movement of the second support (102b) with respect to the first support (102a) is equal to half the angle between two spouts of successive filling (104). Filling machine (100) according to one of Claims 1 to 7, characterized in that each filling spout (104) has an inlet orifice (106) allowing the introduction of a liquid into the hollow cylinder (202 ), in that the filling spouts (104) are divided into two groups and a filling spout (104) of a first group is inserted between two filling spouts (104) of a second group and vice versa, in that the filling machine (100) comprises a dispensing system (120) which comprises a first product reservoir (110) containing a first liquid product intended to supply the filling spouts (104) of the first group and a second reservoir of product (111) containing a second liquid product intended to supply the filling nozzles (104) of the second group, in that the distribution system (120) comprises a first washing tank (112) containing a first liquid washing liquid intended to supply the filling spouts (104) of the first group and a second washing tank (113) containing a second washing liquid intended to supply the filling spouts (104) of the second group, in that the distribution system (120 ) comprises a first supply line (108) fluidically connected to the inlet port (106) of each filling spout (104) of the first group and a first valve (114) fluidically connected between the first product reservoir ( 110), the first wash tank (112) and said first supply line (108), in that the distribution system (120) includes a second supply line (109) fluidly connected to the inlet (106) of each filling spout (104) of the second group and a second valve (115) fluidly connected between the second product tank (111), the second washing tank (113) and said second supply line ( 109).