EP3064469B1 - Device for filling a container - Google Patents

Description

Technical area

The present invention relates to a device for filling a container and in particular a piston filler, which is preferably provided for use in a rotary foodstuff filling plant.

State of the art

For bottling viscous foods or drinks, especially high-viscosity foods, such as jams, yoghurts, ketchup, mayonnaise, cream, etc., it is known to carry out the filling of the highly viscous filling products by means of piston fillers. Piston fillers are also used to fill viscous fillers which have solids such as fruit pieces, pieces of chocolate, cereals or other pieces that are bottled in conjunction with food.

The use of piston fillers for filling viscous filling products has the advantage that the viscous filling products, which otherwise or only very slowly flow out, can be dispensed into the containers to be filled at a predetermined speed in time with the respective filling line. Furthermore, a precisely metered filling can be achieved via the use of the metering piston of the piston filler, so that the filling product can be entered into the container to be filled with the intended filling volume, the intended filling weight or the intended filling level.

Piston fillers are known in different configurations. From the DE 24 53 312 A1 For example, a rotary piston filler is known in which the control of the filling product flow from a filling product reservoir into the metering cylinder is controlled via a plunger provided with a corresponding valve opening. The plunger serves here as well as a valve for controlling the flow of product as well as a dispensing tappet to expel filling product residues from the discharge channel.

From the JP 2000-308470 A1 a piston filler is known in which a rotary valve arranged below the filling product reservoir controls the filling product flow between the filling product reservoir, the metering cylinder and the discharge channel. The rotary valve has a horizontally arranged axis of rotation.

It is also known, for example under the name Viscofill V KRONES AG, a piston filler, which uses a rotary valve having a vertically arranged axis of rotation for controlling the Füllproduktstromes from a Füllproduktreservoir in a Ausschubkanal.

It is also known, for example, under the name Viscofill S KRONES AG, a piston filler, wherein in the bottom of the product container a pneumatically driven seat valve for controlling the Füllproduktstromes from the Füllproduktreservoir is provided in the metering and below the metering another seat valve is provided by which can take place through a discharge of the filling product in the container to be filled.

In the known piston fillers, which have rotary valves with vertical or horizontal orientation, the cleaning is complex because the respective rotary valve must be completely removed for each cleaning process from its valve seat, such as by pulling out the rotary valve from a corresponding rotary valve housing. Furthermore, the rotary valves are rotated twice per dosing about 180 °, so that here depending on the filled product filling an increased wear can be present.

Furthermore, in the known systems, the passage openings to the respective metering cylinders in the frame of the product hopper. Therefore, the product can be sucked into the metering cylinder only to a maximum of the upper edge of the passage openings, so that it may be necessary to discard the filling product located in the bottom area of the respective filling product reservoir at the end of the filling process.

In the known piston dispensers with seat valves, the free passage diameter for the filling product to be metered in is determined by the annular gaps in the valves, so that the maximum particle diameter is limited. Furthermore, by the provision of the poppet valve on Füllproduktauslauf during filling of filling products with pieces a defined separation of Bits can not be reached. Rather, bits in the seat of the valve between the valve body and the valve seat can be pinched or crushed, which may suffer from the quality of the filling product and dripping or uncontrolled falling of the crushed piece residue may occur.

The US 2,563,863 A describes a piston filler according to the preamble of claim 1 with a reservoir for the liquid to be filled and a communicating via an inlet valve with the reservoir measuring cylinder, wherein the inlet valve is arranged directly above the measuring cylinder. Other piston fillers are in the FR 2 925 022 A1 and US 5,230,373 A described.

Presentation of the invention

Starting from the cited prior art, it is an object of the present invention to provide an apparatus for filling a container with a viscous filling product, which has improved properties compared to the devices known from the prior art.

This object is achieved by a device having the features of claim 1. Advantageous developments emerge from the subclaims.

Accordingly, an apparatus for filling a container with a filling product, preferably for filling with a viscous and particle-containing filling product, proposed, comprising a Füllproduktreservoir for receiving the filling product to be filled, a metering cylinder with a slidably received therein metering piston for metering the filling product, and a Ausschubkanal with an outlet end for discharging the filling product into the container to be filled, wherein in the Ausschubkanal a Ausschütztkanal for pushing out a product residue at the end of the filling is arranged, and the Füllproduktreservoir, the metering cylinder and the Ausschubkanal communicate with each other via a common product channel. Furthermore, a valve for opening and closing the connection between filling product reservoir and product channel is arranged in the bottom of the filling product reservoir. According to the invention, the discharge channel is in communication with the metering cylinder via a siphon-like section of the product channel.

Characterized in that in the device in the bottom of the Füllproduktreservoirs a valve for opening and closing the connection between the Füllproduktreservoir and the product channel is arranged and at the same time at the Füllproduktauslauf a Ausschubkanal is provided with a Ausschubstößel, Viscous filling products can be bottled gently and accurately. In particular, filling products in which pieces are present, in particular large, deformable pieces, such as, for example, cherries, can be filled gently and accurately with the device described. The disadvantages of the known piston fillers, which are provided with two seat valves, are overcome by providing the Ausschubkanals with the Ausschubstößel because of the Aus Ausschößel provided shear surfaces exact and clean separation or cutting the pieces takes place when closing the Ausschubkanals means of the Ausschieldößels. Accordingly, a crushing of the pieces no longer takes place, so that a high product quality is achieved, and in particular in the filled container no crushed or undefined separated pieces are more.

Furthermore, the device can be cleaned in a simple manner, since the complex process of disassembling the rotary valves is no longer incurred. Rather, the seat valve arranged in the bottom of the filling product reservoir can be rinsed in a conventional manner by means of cleaning media, without the disassembly of the device being required here. Unlike a rotary valve, an open seat valve, namely with all its surfaces in contact with the product, can be completely flowed around by the cleaning medium without the need for disassembling the device.

The Ausschubkanal and the Ausschubstößel can also be easily flushed in a known manner, without this would require a complex disassembly. The Ausschieldößel can be easily pulled out of the Ausschubkanal, so that all product-contacting surfaces can be rinsed here without the entire device must be removed in a complex manner.

Furthermore, the wear behavior of the device is improved because a wear-resistant seat valve can be used instead of the wear-prone rotary valve.

Moreover, the fact that the valve is arranged in the bottom of the Füllproduktreservoirs, ensures that all filling product, which is located in Füllproduktreservoir, can leak through the valve in the bottom of Füllproduktreservoirs and can be dosed into the container. The remaining Füllproduktktrest is only due to the adhesion of the filling due to the high viscosity in the filling product reservoir, but not by a removal position of the filling product such that inevitably always a Füllproduktrest remains in the Füllproduktreservoir, which is defined by the height of the removal opening.

The valve is preferably a seat valve and / or a poppet valve, and the valve preferably has a valve disk which can be lowered in a sealing manner in a valve seat arranged in an opening in the bottom of the filling product reservoir. In this way, a reliable design of the valve can be achieved, which is still easy to clean.

Individual control of the valve can be achieved by the valve being individually controlled by a mechanical, pneumatic, electropneumatic, electromotive or electromagnetic drive.

Because according to the invention the discharge channel is in communication with the metering cylinder via a siphon-like section of the product channel, an uncontrolled leakage of the filling product can be avoided. In this case, the siphon-like section tapers from its end facing the metering cylinder to its end facing the discharge channel, and is particularly preferably designed to taper continuously.

In order to avoid or reduce the entry of air into the discharge channel and into the siphon-like portion of the product channel, a lower blocking edge of the siphon-like portion of the product channel is preferably arranged at a level below the level defined by the bottom dead center of the metering piston. In this way it can be achieved that air does not enter the Ausschubkanal, in which an inaccurate dosing or spraying occurs when the air bubble through an outlet opening during filling of the container to be filled, so that in this way a more accurate and clean filling of the can be reached to be filled container.

In order to prevent or reduce the accumulation of air in the metering piston or the common product channel, the opening in the bottom of the filling product reservoir is preferably at a higher level than the level formed by the metering piston at its bottom dead center. In this way, air which accumulates in the dosing cylinder or in the product channel can flow back into the filling product reservoir via an open valve in the bottom of the filling product reservoir. In this way, it is ensured that the common product channel and the dosing cylinder are vented accordingly at each dosing, so that the total amount of air that accumulates in the system is kept low or the accumulation can even be avoided.

Particularly preferably located in the bottom of the product channel, a discharge opening, which can be closed by means of a shut-off. It can thus be achieved that, when the device is being cleaned, a complete leakage of the cleaning medium is also achieved from the common product channel, in particular a common product channel, which has a siphon-like design, so that the common product channel as well as the discharge channel and the metering cylinder are completely separated from one another the cleaning medium can be emptied. The opening with the obturator forms at least for the respective individual device the lowest point, so that the cleaning medium can leak completely.

For individual control of the Ausschubstößel is preferably controlled individually with a mechanical, pneumatic, electro-pneumatic, electromotive or electromagnetic drive. In this case, particularly preferably, a control of the drive can be set up so that the Ausschubstößel remains in the presence of a container gap in the lowered position.

Preferably, a shear edge is formed between the siphon-like portion of the product channel and the Ausschubkanal, which cooperates with the Ausschubstößel. By means of the shearing edge, a defined shearing off of filling product constituents, in particular filling product particles, can be achieved during lowering of the ejection tappet so that a clean and squeeze-free filling result is achieved.

In a further preferred embodiment, when the device is being cleaned, the valve is controlled in the open position and the ejector plunger is pulled out of the ejection channel and the metering piston is pulled out of the metering cylinder. In particular, there is no disassembly of housing parts, so that a simple cleaning can be performed.

Brief description of the figures

Figur 1

eine Vorrichtung zum Befüllen eines Behälters in einem ersten Betriebszustand beim Befüllen des Dosierzylinders mit Füllprodukt aus dem Füllproduktreservoir;

Figur 2

die Vorrichtung der Figur 1 in einem zweiten Betriebszustand, in welchem der Dosierzylinder das Füllprodukt über den Ausschubkanal in den zu befüllenden Behälter ausgibt und

Figur 3

die Vorrichtung der Figuren 1 und 2 in einem dritten Zustand, in welchem eine Reinigung der Vorrichtung durchgeführt wird.

Preferred further embodiments and aspects of the present invention are explained in more detail by the following description of the figures. Showing:

FIG. 1

a device for filling a container in a first operating state during filling of the metering cylinder with filling product from the filling product reservoir;

FIG. 2

the device of FIG. 1 in a second operating state in which the metering cylinder dispenses the filling product via the discharge channel into the container to be filled and

FIG. 3

the device of FIGS. 1 and 2 in a third state in which a cleaning of the device is performed.

Detailed description of preferred embodiments

In the following, preferred embodiments will be described with reference to the figures. In this case, identical, similar or equivalent elements in the different figures are denoted by identical reference numerals and a repeated description of these elements is omitted in order to avoid redundancies.

FIG. 1 shows a device 100 for filling a schematically indicated container 110 with a viscous filling product, in particular a high-viscosity filling product, which is mixed with particles or pieces, for example, a yogurt with whole cherries. The viscous filling product is provided for filling in a filling product reservoir 1, which has side walls 10 and a bottom 12. The filling product reservoir 1 may, for example, be a product vessel of a rotary filler in a filling installation, with a plurality of apparatuses 100 typically being arranged as filling members on the periphery of the filling product reservoir 1 and circulating with it in production operation.

In the bottom 12 of the filling product reservoir 1, an opening 14 is provided, through which the filling product can flow into a product channel 2. The opening 14 can be closed by a valve 3. In the exemplary embodiment shown, the valve 3 has a valve disk 30 and a valve seat 32 revolving around the opening 14 in the bottom 12 of the filling product reservoir 1. The valve disk 30 may be sealingly lowered into the valve seat 32 or lifted out of the valve seat 32 to then correspondingly open the opening 14 in the bottom 12 of the Füllproduktreservoirs 1 and to allow a flow of the filling product from the Füllproduktreservoir 1 in the product channel 2.

The use of the poppet valve 3 is less susceptible to wear than known from the prior art rotary valves, so that the device 100 is formed wear.

Furthermore, the mechanical effort required to build the device 100 is much less than in the prior art devices, so that on the one hand the costs and the mass moved can be reduced, and on the other hand the operational safety can be improved.

In addition, the assembly of the valve 3 in the bottom 12 of the filling product reservoir 1 makes it possible for the filling product to be completely removed from the filling product reservoir 1.

The valve disk 30 is connected via a valve tappet 34 to a valve drive 36, wherein the valve drive 36 may be a mechanical, pneumatic, electropneumatic, electromotive or electromagnetic drive, which allows reliable opening and closing of the valve 3 and at the same time an individual control of each valve 3 allows for example in a rotary filler.

The product channel 2, which extends from the opening 14 of the filling product reservoir 1 which can be closed by means of the valve 3, communicates with a metering cylinder 4, in which a metering piston 40 is arranged. The metering piston 40 can be moved up and down within the metering cylinder 4 and accordingly provide a volume change of the volume received in the metering cylinder 4. By raising the metering piston 40 in the metering cylinder 4, as well as by the arrow in the FIG. 1 indicated, can be sucked in accordance with filling product from the Füllproduktreservoir 1 through the open valve 3 and the opening 14 in the bottom 12 of the Füllproduktreservoirs through the product channel 2 in the metering cylinder 4. The thus provided stream of the filling product from the filling product reservoir into the metering cylinder 4 is in the FIG. 1 indicated by arrows.

Furthermore, a Ausschubkanal 5 is provided, which communicates via a siphon-like portion 20 of the product channel 2 with the metering cylinder 4. In the in FIG. 1 shown operating state of the device 100, the Ausschubkanal 5 is closed by a lowered therein Ausschubstößel 50, which is also referred to as a plunger. The Ausschästößel 50 is thereby advanced to the outlet end 52 of Ausschubkanals 5 and filled according to the Ausschubkanal 5 in this operating condition completely.

The siphon-like portion 20 of the product channel 2 is connected to the Ausschubkanal 5 via a connection opening 22, which allows the filling product, with removed Ausschubstößel 50 through the Ausschubkanal 5 to reach the outlet end 52, and then to enter the container to be filled 110. This operating state is also in FIG. 2 shown.

The formation of the product channel 2 with the siphon-like portion 20 prevents uncontrolled emptying of product in the container to be filled 110th

At the junction of the siphon-like portion 20 of the product channel 2 with the Ausschubkanal 5 is formed in the region of the connection opening 22 corresponding to intersection, which provides a shearing edge 54. At the shearing edge 5 of the sinking Ausschästößel 50 can exert a shear function, by means of which a shearing of filling product, in particular particulate filling product, is made possible. In particular, in this way it is possible to cleanly shear flexible, larger volume filling product pieces, such as cherries, at the shear edge 54 by means of the pushrod 50 so that crushing of these fill product pieces does not occur and a clean and defined push of the fill product through the outlet end 52 into the bottom arranged to be filled container 110 is made possible.

The opening 14 in the bottom 12 of the Füllproduktreservoirs 1 is disposed at a higher level h ₁ , as the lower edge of the metering cylinder 4, which also represents a lower piston dead center of the metering piston 40 at the same time. In this way it can be achieved that air, which is possibly taken up in the metering cylinder 4 or accumulates in it, is expelled from the metering cylinder 4 by the metering piston 40 during the ejection, ie the downward movement of the metering piston 40 within the metering cylinder 4. Since the ejection of the filling product, the valve 3 is usually closed, the air ejected from the metering 4 then accumulates under the closed valve 3. During the next opening of the valve 3, for example in the next filling cycle, the air can then be pushed back through the valve 3 into the filling product reservoir 1. Accordingly, an accumulation of air in the metering cylinder 4 can be reduced or prevented.

The siphon-like portion 20 of the product channel 2 has a lower blocking edge 24, which has a level h ₃ , which lies below the lowest Kolbentotpunkts the metering piston 40, which is marked with the level h ₂ . In this way it can be ensured that air which is expelled from the metering cylinder 4 by means of the metering piston 40 during a downward movement of the metering piston 40, does not rise in the siphon-like portion 20 of the product channel 2, but on both above the lower locking edge 24 as well Opening 14 lying in the bottom 12 of the filling product reservoir 1 can flow back into the filling product reservoir 1 or is pushed back into the filling product reservoir 1 above the lower piston dead center of the metering piston 40. An entry of air into the siphon-like portion 20 and thus also in the Ausschubkanal 5 is reduced or completely prevented in this way. Thus, a clean filling of the filling product can be achieved, in particular by the fact that no mixture of air and filling product emerges from the outlet end 52, which could lead to an increased tendency of the filling product to pour during filling. Furthermore, a reliable filling of a defined volume can be ensured in this way, which is not compromised by the presence of a larger bubble.

In the bottom region 26 of the product channel 2, a discharge opening 28 is provided, which is closed by means of a corresponding blocking member in the production operation. The discharge opening 28 is preferably provided at the lowest position of the product channel 2 and makes it possible, after completion of a production cycle to discharge still in the product channel 2 located filling product and / or completely discharge a cleaning medium which has been used to clean the device 100. Thus, a product change or a production standstill, each with subsequent cleaning without the risk of carryover of the cleaning medium used in each case or the previous filling product can be performed and the device 100 can be sorted from the first container of the subsequent product cycle sorted.

The movement of the Ausschästößels 50 is controlled in the embodiment shown via a guide rail 56 to which a corresponding role of the Ausschütztößels 50 is guided. However, the Ausschästößel 50 may also be equipped with any other drives, in particular with an individual pneumatic, hydraulic, electrical, magnetic or other type of drive, which can be individually controlled.

By using the valve 3 in the form of a poppet valve with valve disk 30 in combination with a corresponding expression of the valve seat 32 and the configuration of the Füllproduktreservoirs 1 in the region of its bottom 2 in the form of a funnel can be achieved that the annular gap which is formed between the valve disk 30 and the valve seat 32, is significantly greater than that which is provided by the poppet valves used in the prior art, which use smaller valve body. In this way it can be ensured that also filling products with larger particles, in particular larger elastic particles such as cherries, can easily pass through the annular gap and can accordingly enter through the opening 14 in the bottom 12 of the filling product reservoir 1 into the product channel 2.

The product channel 2 has, in the region of the opening 14 in the bottom 12 of the filling product reservoir 1, a larger cross-section q ₁ than in the region of the connection opening 22 in which a cross-section q _{2 is} provided. The reduction of the cross-section from the larger opening cross-section q ₁ at the opening 14 in the bottom 12 of the Füllproduktreservoirs 1 to the connection opening 22 with the reduced cross-section q ₂ and finally to the cross-section q ₃ at the outlet end 52 of Ausschubkanals 5 takes place substantially steadily, so that jamming of the filling product or excessive squeezing or the exertion of an excessively high pressure on the filling product can be avoided in this way. The cross-sectional reduction from the opening 14 to the connection opening 22 is preferably substantially linear. The filling product channel 2 is delimited in the region of the metering cylinder 4 at the top by the metering piston 40, which has been lowered completely in its bottom dead center.

At least the siphon-like portion 20 of the product channel 2 has from its beginning to a steadily decreasing cross-section towards the connection opening 22, so that the filling product is not excessively jammed or squeezed in this area and accordingly a gentle Füllproduktabfüllung can be achieved.

The reduction of the cross section to the cross section q ₃ at the outlet end 42 of Ausschubkanals 5 is required to achieve a filling, which corresponds to the mouth cross section of the container to be filled 110 and at the same time to be able to accommodate an adequate filling product volume in the metering cylinder 4, without a To achieve excessive height of the device 100. For this purpose, a larger cross-section of the metering cylinder 4 and thus the opening 14 is required.

In FIG. 2 a second operating state of the device 100 is shown, in which the valve 3 is closed and, accordingly, the connection between the filling product reservoir 1 and the product channel 2 is closed. The metering piston 40 is in the downward movement, so the fill product then received in the metering cylinder 4 flows via the product channel 2 and in particular the siphon-like section 20 at the connection opening 22 into the discharge channel 5 and then enters the schematically indicated container 110 to be filled through the outlet end 52. The Ausschästößel 50 is in an extended upward position so that it is substantially flush with the upper edge of the connection opening 22. The filling product accordingly flows unhindered through the discharge channel 5 into the container 110 to be filled.

If the metering piston 40 has reached the lower dead position, so that further conveying of filling product through the product channel 2 no longer takes place, the Ausschütztößel 50 is again controlled in the lowered position, as in FIG. 1 is shown, wherein the filling product, which is still in Ausschubkanal 5 at this time, is pushed out through the outlet end 52. Accordingly, the Ausschubkanal 5 is completely emptied of the filling product, so that a defined filling of the container to be filled 110 is achieved.

If particles or particles, such as fruit pieces, whole fruits, chocolate, muesli or other solids, are present in the filling product, during the lowering of the push-off plunger 50 at the shearing edge 54 a shearing off of the respective particles located in this area will take place, that the particles are not crushed, but have a clean cut edge. This is particularly important when filling filling products with larger pieces of fruit or whole elastic fruits, such as cherries, because the particles present in the filling product are then not crushed, but only a few clean cut particles are present next to the whole particles.

By lowering the Ausschästößels 50 in the Ausschubkanal 5, the connection opening 22 is further closed, so that in the next cycle, the valve 3 can be opened and by raising the metering piston 40 of the metering cylinder 4 can be filled in turn with filling product from the Füllproduktreservoir. This operating state is, for example, in FIG. 1 shown.

In an individual control of the Ausschästößels 50 can be further achieved that in a production plant in the presence of a container gap, so in the absence of a container below the outlet end 52 in production, the Ausschästößel 50 throughout the cycle away in the lowered position remains, so that filling product is not ejected. Thus, it can be prevented that filling product pollutes the environment, since it is not caught by a container to be filled. Accordingly, the outlet end 52 can be kept closed in the absence of a container.

Furthermore, the Ausschästößel 50 can be used as overload protection or overload indicator when the outlet end 52 is blocked, for example by blocked filling product or other foreign matter, so that the Ausschütztößel 50 would have to be lowered with too high a force. In an overload by the blocking of the outlet end 52 and the mouth of Ausschubkanals 5 by, for example, a reaching into Ausschubkanal foreign bodies when exceeding a certain counterforce in the drive of Ausschieldößels 50 no further movement longer possible, so that the possible mechanical damage of the device 100 in Limits is kept or can be completely avoided. When monitoring the position of the Ausschästößels 50 at predetermined positions on the circumference of the rotating device can thus be determined whether in an individual device 100, so a particular filling member, such an error exists. The error can then be uniquely assigned according to the respective device 100 and be remedied accordingly targeted after stopping the system.

In the case of an electromagnetic or electromotive control or drive of the pushrod 50, an overload safety device can be easily integrated, which reports a blockage of the pushrod 50 via an electrosensitive feedback. Furthermore, a targeted control or selective control can be made in this way, which makes it possible to keep the Ausschubstößel 50 in the closed position in the presence of a container gap to prevent the expulsion of filling product in a position in which there is no container.

In FIG. 3 the device 100 is shown during a cleaning process. In this case, the valve 3 is fully opened, such that a cleaning medium from the filling product reservoir 1 can flow through the annular gap of the valve 3 into the product channel 2. Furthermore, the metering piston 40 is completely lifted out of the metering cylinder 4, so that here too a complete cleaning of both the inner surfaces of the metering cylinder 4 and the outer surfaces of the metering piston 40 can be carried out in a simple manner by applying a cleaning medium. Furthermore, the Ausschubstößel 50 is completely lifted out of the Ausschubkanal 5, so that here also by a simple application to the Cleaning medium, both the Ausschubkanal 5 and the Ausschubstößel 50 can be cleaned at least at the corresponding product-contacted surfaces.

The discharge opening 28 and in particular the shut-off device at the discharge opening 28 are opened to allow a drainage of the cleaning medium. Since the discharge opening 28 is arranged at the lowest point in the product channel 2, can also be achieved accordingly that residual filling product as well as all cleaning medium can flow reliably and accordingly the cleaning can be carried out completely. Furthermore, it can be avoided that cleaning medium or rinsing water remain in the product channel 2, which could be problematic in a subsequent startup of the device 100 and could lead to carryover of the corresponding media.

To clean the valve 3, it is not necessary to disassemble this, as is the case with the rotary valves of the prior art, but due to the possibility of complete flow around the product contacting surfaces of the valve 3, it is possible to clean with in the Allow device 100 received, but open valve 3. Furthermore, the device 100 and in particular its base body, on which, for example, the walls of the product channel 2, the walls of the filling product reservoir 1, the metering cylinder 4 and the Ausschubkanal 5 are provided, and for example in FIG. 3 shown, can not be ripped apart, but can persist in the configuration. In particular, it is possible to hold these components in one piece or in a firmly interconnected, for example, screwed or welded state during cleaning. Accordingly, the time-consuming cleaning, which is known from the prior art, in which different levels of the device 100 must be disassembled, be dispensed with.

reference numeral

1

Füllproduktreservoir

10

Side wall

12

ground

14

opening

100

contraption

110

container

2

product channel

20

siphon-like section

22

connecting opening

24

lower blocking edge

26

ground

28

drain hole

3

Valve

30

valve disc

32

valve seat

34

tappet

36

valve drive

4

metering

40

dosing

5

Ausschubkanal

50

Ausschubstößel

52

outlet

54

shearing edge

56

guide rail

Claims (10)

1. Device (100) for filling a container (110) with a filling product, preferably for filling with a viscous and particle-containing filling product, comprising a filling product reservoir (1) for holding the filling product to be filled, a dosing cylinder (4) comprising a dosing piston (40) mounted to be displaceable in the latter for dosing the filling product, and a discharge channel (5) comprising an outlet end (52) for discharging the filling product into the container (110) to be filled, wherein in the discharge channel (5) a discharge plunger (50) is provided for expelling residual product at the end of the filling process, and the filling product reservoir (1), the dosing cylinder (4) and the discharge channel (5) communicate with each other via a common product channel (2), wherein in the base (12) of the filling product reservoir (1) a valve (3) is provided for opening and closing the connection between the filling product reservoir (1) and product channel (2), characterised in that the discharge channel (5) is in communication with the dosing cylinder (4) by means of a siphon-like section (20) of the product channel (2):
2. Device (100) according to claim 1, characterised in that the valve (3) is a seat valve and/or a poppet valve and the valve (3) preferably comprises a valve disk (30), which can be lowered in a sealing manner into a valve seat (32) arranged in an opening (14) in the base (12) of the filling product reservoir (1).
3. Device (100) according to either claim 1 or claim 2, characterised in that the valve (3) is activated individually by a mechanical, pneumatic, electropneumatic, electromotive or electromagnetic drive.
4. Device (100) according to any of the preceding claims, characterised in that the siphon-like section (20) tapers from its end that faces the dosing cylinder (4) to its end that faces the discharge channel (5) and preferably tapers continually.
5. Device (100) according to claim 4, characterised in that a lower blocking edge (24) of the siphon-like section (20) of the product channel (2) is arranged at a level (h₃) below the level (h₂) defined by the lower dead centre of the dosing piston (40).
6. Device (100) according to any of the preceding claims, characterised in that the opening (14) in the base (12) of the filling product reservoir (1) is arranged at a higher level (h₁) than the level (h₂) defined by a lower dead centre of the dosing piston (40).
7. Device (100) according to any of the preceding claims, characterised in that in the base (26) of the product channel (2) a discharge opening (28) is provided which can be closed by means of a shut-off device.
8. Device (100) according to any of the preceding claims, characterised in that the discharge plunger (50) is actuated individually by a mechanical, pneumatic, electropneumatic, electromotive or electromagnetic drive.
9. Device (100) according to claim 8, characterised in that a control of the drive is configured such that if there is a gap in a supply of containers the discharge plunger (50) remains in a lowered position.
10. Device (100) according to any of the preceding claims, characterised in that between the siphon-like section (20) of the product channel (2) and the discharge channel (5) a shearing edge (54) is formed which cooperates with the discharge plunger (50).

Images