DE2404315A1 - FILLING HEAD FOR CONTAINER FILLING MACHINES - Google Patents

Description

4368

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DR.-ING. R. DÖRING DIPL.-PHYS. DR. J. FRICKE

BRAUNSCHWEIO MUNICH

Continental Can Company, Inc., 633 Third Avenue, New York 17, NY / USA

"Filling head for container filling machines"

The invention relates to a filling head for container filling machines, in particular for filling carbonated beverages into Cans, bottles or the like. Containers.

Machines have been developed specifically designed to handle carbonated beverages or the like Fill in products. These machines provide that a counter pressure is built up in the container, whereupon the product can be delivered under low manometric pressure from a receiver located in the machine. By doing The recipient is a product held in stock under a pressure similar to the counter pressure in the container. You rely on the low pre-pressure to prevent the foaming that is normally caused by the high-speed flow Flow and mechanical handling occurs. These machines are built on the same assumption, viz that by carefully handling and working with

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relatively low flow velocities cause foaming is avoided. Such machines therefore have limited Filling speeds. There are automatic filling machines for these purposes have been applied, which generally comprise a product feed kettle or a container having a plurality of of filling heads in the bottom wall, which are arranged to withdraw the product directly from the storage kettle and to fill the desired amount down through a valve into the container while the back pressure and the product pressure be kept essentially at the same level. in the In general, it is necessary to remove the gas from the headspace of the container through a special ventilation or sniffer valve Remove before unsealing the top of the container if the container is with the desired one Amount of product has been filled. The problem is complicated by the need for a relatively large one To keep the supply of product under pressure in the machine. These problems lie mainly in the preservation of quality of the product, maintaining sanitary conditions and reducing the loss of product during shutdown the machine or a change of the product is necessary.

3s has meanwhile been found that by increasing the product pressure and introducing a flow restriction device into the product valve to create a pressure drop between the high pressure of the product and atmospheric pressure during the desired flow through the carbonated valve

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offset products can be treated with lower heating for foaming, so that higher filling speeds can also be achieved. It has been found that the flow restriction device should be of such a character that it creates a thin film of liquid on the order of 0.127 to 0.152 mm thick. The terms "laminar" or "capillary" flow are often used to describe such flow conditions. Such devices have been used commercially, particularly in connection with vending machines for carbonated products or for similar dispensing devices.

It is the object of the present invention to provide a filling head further develop the arrangement described in more detail at the outset so that this can be used in a filling machine in fully automatic operation with a minimum of Control and with a uniform filling at high filling speed, especially when handling carbonated Drinks. At the same time, it should be ensured that the containers each with uniform amounts of the Product and with a minimum of foaming. There is still the task of designing the filling head in such a way that that the advantages listed in the last paragraph of this description are achieved.

This object is achieved according to the invention by a hollow, cylindrical housing with a downwardly directed opening, 'Consists of an upper housing member and one in this

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teleskoparti; - sliding lower housing member, on whose lower end a sealing element, in particular in the form of a Abüichtung; -; curl, nontiert, that or those in sealing Contact with the opening mouth of one below which is fixed to the frame Container is brought by a arranged in the lower housing member hollow product distributor, the one Connection r-iit has a product inlet opening, which with a product supply line is connected, which in the immediate Near the product inlet opening a device for generating extreme- turbulence and a high pressure drop, through a product supply valve with a body member in the product distributor, which valve can move between has an open position and a closed position for controlling the product flow through the product inlet opening, by a piston slidably mounted in the lower housing member and connected to the valve body, the valve body is normally biased into the closed position by an elastic member, by means for Supply of counter pressure into the container to move the valve body into the open position, as well as through a line to transfer of the negative pressure to the underside of the piston and a device for holding down the piston while a device responsive to the filling of the container to a predetermined level for controlling the piston in the valve closed position is provided. In this arrangement the fill head includes a product flow control valve and means on, ufi to generate a counterpressure in the container, whereby the container is sealed o by the head. Fine facility

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also serves to "w". in an arranged outside the Püllkonfeo feed line Γ Π ν represents ^P ROAU ":: t a extrer ■ -. ■," Turljiifenz and a Nohen pressure drop to erseufjen, so that the product erincer by aas control valve with a relatively high ^ iJllreschwindifkeit and ^ or there is no foam flow in. The counter pressure can build up through a valve in the container. The product can be fed to the filling head through a pressurized line. The product supplied by the flow of turbulence and pressure drop is transferred to the container in which a counterpressure is generated in an oasis or by means of air. The sealing between the filling head and the container can be done with the aid of a sealing ring. The counter pressure can be used to open the product valve and let in the product. Furthermore, a device can be provided to operate a relay circuit through which the product valve esr "ubert; can easily g:; is again sen J3'e sehlos at this · end, a sensor is provided which triggers the relay ₅ when the liquid in the container is true to a vorbe it increases .Tiveau the new Zinrichtunr.. and sterilized, on the spot, without dismantling.

The storage facility for the product can be xir »distance of the head so that it can be removed directly the reservoir is not required. The product valve can be operated by a fluid-actuated piston be operable. A Vtirhincunp; to a lead. " zur ^ ufähruru; · the counter pressure durci. never lead

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be, zo οεΛ the Produktver.üil opens by the counter pressure, ^T -.- when this builds up in the container. The relay circuit for closing the product valve can be activated authoritatively as soon as Gio Fl>i3si;-;: e has reached a certain level in the container. ! Bet Tabei 'ti ^r t the "elaJäireis a Zuführunrrseinrichtun · for a means of pressure to the piston, in Schließrichtunf ^p rodul: tenventils, shut ura product s flow after the Ge ^ has been endruckleitunv closed rrechanisch.

The invention also provides a method for filling containers uit drinks or df ^ l. before. This is characterized by that ran an electrically conductive sensor first introduces into the container up to the desired filling level and then the liquid along the side walls of the container before you switch on the sensor, and only then, when the flow rate of the product in the container stabilizes Has. Then one keeps the liquid flow upright, until the liquid level has reached the sensor. Fit When the sensor is reached, a shutdown circuit is closed.

The invention is illustrated below with the aid of schematic drawings explained in more detail on several exemplary embodiments.

Show it:

Figure 1 is a front view of a filling head operating on a carbonated beverage filling machine

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is mounted and the xevrJ'S of the invention is formed.

Pi (J. 2 a side view of the arrangement: after Fi; - ;. 1.

3 shows a vertical section along the section line 3-3 the Pifr .. 1.

Fig. 4, on a larger scale, of a part body and associated parts provided in the filling head for the invention. Fi £. .4 shows the parts in a position outside the associated housing , before parts? are broken to resuscitate.

Pig. hA a partial cross-section along the section line kh - '^ fi. the fin ;. 3.

Pig. 5 shows a section along section line 5-5 of FIG. 6 shows a partial section along the section line 6-6 of FIG.

Fir ;. 7 shows a section along section line 7-7 of FIG. 3-FIG. 8 a section along the section] inie 8-8 of the Pi ^ .3. Fig. 9 is a plan view of the Fin filling head; I ₃ where in the Fi; ^: ; ur the adjacent filling heads in dashed lines

are indicated.
Fi: <;. 10 is a vertical section along the line 10-10

of Fig. 9.
PiS x 11 one apart; _:: Ezorrenfc perspective inche Dn.ri5tellun; \ ^p roduktvsntils r-it associated parts, but outside

of walking ^; UBes.
Fi; / .. 12 in Forr: a circuit diagram of the electrical control circuit

for the felling conf.
Fi;,. 13 a vertical section en'-lar. · ^ Ier "ittellinir a sv; siten Au ^r 3.f ¹ " ihrun: "sforr · der! - ^" indun. *.

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Fig. Ih a partial section through a third embodiment.

15 is an exploded perspective view of the Product valve, manifold and piston of the embodiment according to Fig. 13.

16 is an exploded perspective view of the product valve, manifold and piston of the embodiment ungsform n-ach Fig. 1 * 1, and

17 shows an electronic relay circuit with a built-in time delay for electrical η switch-off of the sensor.

In the figures is a device for filling containers, like cans, reproduced, which is used to hold a drink, in particular Beer, soft drinks or the like. Which are carbonated and are normally subject to a foaming effect when they exposed to the atmosphere under normal temperatures, in to fill the cans. The apparatus includes a filling head 10, the With several similar filling heads together on a turntable or can be raised on other conveyors. In the example shown, the filling head 10 is mounted on a stand. The conveyor or turntable has associated support means for cans C and a device to place empty cans in approximately vertical alignment below each filling head 10 bring to. The filling head 10 includes an upper or outer cylindrical portion 12 which is in a relatively fixed position the support post 11 is arranged. Furthermore, a lower or inner cylindrical part 14 is provided, which is partially is telescopically received in the upper part 12 and that is displaceable perpendicular to this. The vertical movement

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Movement of the inner cylindrical member lh is controlled by a squat path of a box-shaped squat forming member and by a motion take-off element in the form of a film 17, which is arranged at the lower end of the vertically displaceable member l4. A motion release roller 18 on the upper link 12 also slides on the mock track 16 and serves to relieve the pressure on the link 12. The two telescopically cooperating members 12 and lU form a two-piece housing for the filling valve and the associated parts.

The cylindrical bottom housing member 14 carries at its lower end 19 a combined bell-like arrangement 20 with a guide cone for the product and a portion engaging in a sealing manner on the top of the container. For this purpose, a sealing ring 21 made of rubber or the like. Material is arranged in a recess 22 which is formed at the lower end of the section 23 forming the guide cone. The ring is held in the recess by a flange 24 which is screwed into the threaded cone 23. The conical member 23 has an upper end which telescopically engages in the lower end 19 of the member Ik and is screwed therewith. An O-ring seal 25 is disposed in a sidewall groove near the top edge of the cone member 23. The interior of the guide cone 23 has the shape of an inverted funnel, as indicated at 26, so that in this way the product in the container C and in contact with the inner side wall of the

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Container is directed. A cylindrical member 27 serving to distribute the product is located in the lower section 19 of the Member 14 is arranged directly above the upper edge of the cone member 23 and in its position by the cone member 23 locked. A bore 28 has an enlarged section at the lower end, which has a recess 31 for a splash section 32 of the valve member 30 forms. In the lower face of the splash area 32, an O-ring 33 is mounted, which is arranged in a downwardly open circumferential groove. The O-ring can engage on the inner upper edge 34 of the guide cone 23, which has a valve seat for cooperation with the O-ring

33 forms. The product distributor 27 has a circumferential groove or a slot 35 which forms a passage for receiving the product from a feed line 36 which supplies the product. The feed line 36 is connected via the nipple 37 to an input channel 38 which extends through the side wall of the housing member 14. Short ducts 40 extend axially downwardly, and zv so as to enable / ar from the circumferential groove 35 in the recess 3I ₃ the entry of the product into the guide cone 23, when the valve is lifted 30 and the valve forming O-ring 33 at a distance above the valve seat

34 is in a valve-open position. The valve body 30 many two O-ring seals 41 on. The same goes for that Distribution valve that has two O-ring seals 42 open. These rings are above and below one with respect to each pair Circumferential groove arranged. This gutter can be placed in a position to communicate with outlet channels 43 and 43 '

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which extend through the wall of the distributor member 26 and the housing 14. This occurs for the PaIl ₃ that the seals fail or are damaged.

The valve member 30 has an axial channel or a bore 44 into which a sensor 45 can be inserted. This has a smaller cross-sectional diameter than the bore 44 and is mounted with its lower end in a guide member 45 '(see Fig. 3 and Fig. 4A), which is located in the bore 44. This creates a passage 46 between the opposing walls of the two members. The valve body 30 has an upper end portion 47 which is in threaded engagement with a downwardly opening bore 47 'in the bottom end of a member 48 forming a piston. The piston 48 is slidably received in the upper end of the bottom section 49 of the housing member 14. The housing member 14 consists of two sections, namely a bottom section and one; upper section 49 '. The upper edge of the bottom portion 49 has a reduced cross section and is ir> · threaded engagement with the bottom end of the upper portion 49 '> so that the two parts funktionsmäßis; form a part. The bottom section is closed at its upper end by an inwardly projecting flange 50 and a cap or plug 51. A compression spring 52 is arranged in an upwardly open recess in the upper end face of the piston 48 and lies against the bottom side of the flange 50 in order to bias the piston in a downward direction. The vertical movement; of

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Piston 48 is relatively small and. is limited by the vertical movement of the flange 32 which carries the valve sealing ring 33 in the recess 31. The piston 48 has a dimension in the direction of the axis of the housing 14 which is smaller than the corresponding dimension of the housing section 49 in which the piston works. This provides a distance between the top and bottom surfaces and the opposing surfaces of the flange 50 and the product distribution member 27. The piston 48 has two O-ring seals 54 in side wall grooves above and below an outlet groove which in connection with an outlet channel 55 in the side wall of the housing portion 49 is to allow a discharge to the atmosphere in the event that the seal 5 ^ fails. A cap-forming member 5I ₅ made of electrically insulating material has a plug portion 56 which protrudes into the central bore of the housing portion 49. The plug carries a contact block 57 in a downwardly open recess 58 in the lower end face. The block 57 can come into contact with the upper end 59 of the feeler 45 when the piston member 48 is raised by the build-up of back pressure on the bottom surface of the piston 48. The back pressure is provided through line 60 from a cam controlled control valve 61 mounted on top of housing 12. A supply line 20 is connected to a channel 63 in the wall of the housing member via a llipple 62, which channel leads to a recess 64 between the top side of the distributor 27 and the bottom of the piston 48.

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The recess 64 is connected via channels 65 to the channel 46 in the bore 44 of the valve body 30, so that it provides a passage through the valve body 30 and into the container below the sealing bell 20. When the counter-pressure builds up in the container, the upper side of which is closed by the bell device, the latter exerts a force against the bottom surface of the piston 48. _s which overcomes the force of the spring and the force exerted on the valve 32 by the downward product pressure. As a result, the upper end 59 of the feeler 45 rises into contact with the contact block 5 ?. This is held on the insulated cap 51 with the aid of a contact screw 68, to which a line 70 according to Pig, 7 is attached, in order to connect it to the electrical circuit which controls the operation of the product valve in the manner still to be described.

The block 57 carrying the contact is on top of the flange 51 of the housing section 49 by means of bolts 71 and a terminal block 72 attached. A radial passage 73 extends into block 72 and stands with an axial channel 73 'in connection. This extends through the member 51 carrying the contact and the flange 50 at the upper end of the housing section 49 down to a passage for pressurized air from the top of the housing 40 to the top of the piston member 48 to create. A passage 7 ^ extends through the closed upper side of the upper housing member 12 and has a connection with a compressed air line 75. Here-

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through the piston 48 can be pushed down to the product valve to close by means of compressed air, its supply through an electronic relay circuit in the manner to be described is controlled.

A three-way solenoid valve 80 is shown in Pig, 3 and 8 on the top of the terminal block 72 arranged. On its upper end, the valve carries a small tubular section 41, the extends into an axial bore 82 of an anchor block 83 on the top of the upper housing member 12. The tubular

Section 8l has an upper end '± n shape of a head, the

has an enlarged diameter 84 which is in sliding sealing relationship with bore 82 by means of an O-ring 85 and which moves with the housing 14 when the head is lowered into engagement with the top of a container C. The axial Bore 86 in member 81 is used to form a passage for compressed air, which can escape through a radial opening 47, when the piston 48 is raised. The distance 88 in the block 83 below the head 84 of the tubular part 8l provides a built-in air cushion to slow down the movement of the housing 14 in the event of a container bursting. A rubber shock absorber ring 90 is provided on the underside of the head portion 84 of the tubular part 81 to act as a stop member for engaging to serve on the inner shoulder 92 at the bottom of the recess 88 when the head 84 reaches the lower end of a stroke. A Magnet 93 is mounted on the bottom of the armature block 83 and serves to open a normally closed switch 94 after

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Pig. 8 and 12 in the. Relay circuit when the head 10 is raised to get free from a container C.

The back pressure valve 61 is in an extension forming a holder 95 of FIGS. 3 and 9 on top of the fixed Housing member 12 mounted. The valve 6l is a three-way air valve which is operated by a cam follower 96 which engages a member 97 which forms a squat track and is supported on the cam housing 16 by holders 98 or the like can.

Provision is made to prevent actuation of the head 10 in the event that a container C does not fall below it of the filling head for the purpose of filling. According to FIGS. 1, 2 and 9, a locking plate 101 can be pivoted at 102 on the valve 61 stored and is normally held in an inoperative position by a compression spring 103 on a pull rod 104, which is mounted in a guide I05 in the housing 12 and see extends into a position in which the lower end abuts a stop IO6 on the lower portion 49 of the valve housing sits on. A compression spring 107 at the bottom end of the rod 104 usually tends to move the rod in a downward direction, to close the plate 101. The upper end of the rod 104 has a stop pin 108 for engaging the upper one Side of the locking plate 101 when the rod 104 is pulled down by releasing the spring 107. This then occurs when the lower end of the housing 14 extends below the upper Level of a container lowers, i.e. in case of missing one

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Container. This makes the valve 61 for the delivery of a Counterpressure is blocked, as is the actuation of the valve that feeds the product.

As can be seen from Fig. 11, the valve means can be easily removed from the lower housing member Ih for the purpose of cleaning and replacement. For this purpose, the sealing bell 20 is first removed after the product distributor member 27 and the piston 48 can be pulled out of the lower housing section 49 in the axial direction. The piston 48 and the valve member 30 can then be separated from one another, and the valve body 30 can be removed from the product distributor member 27. The entire inner or lower housing member Ih with the associated parts can be removed from the upper housing member 12 by pulling the pin 10 of FIGS. 9 and 10 from the associated bore 111, which extends through the upper side wall portions of the upper or outer housing 12 and through the anchoring block 33 extends. The pin 110 normally locks the housing Ih and associated parts in the inserted position in the housing 12. The housing 14 is prevented from rotating about the vertical axis by a head block 112 which is mounted on a pin 115. This extends from the member 49 by the ^w ig.l to 3 in a downwardly open slot 113 in a downward extension 111 of the side wall of the upper housing 12. The Bewegungsabnahneglied 17 is mounted on the pin 115th

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The delivery of a counter pressure with the help of compressed air through the line 16 is controlled by a three-way valve 61, which by a squat 97 in time-dependent relationship to the Lowering the housing 14 is actuated, the sealing bell 20 in sealing engagement with the! "And a container C is brought, which is to be filled v / ground. The pressure of the back pressure air comes through a connection 60 'gerr.äÄ Fig. 9 rait dem Three-way valve 61 to act on a manifold or another source of supply.

The working mode of the solenoid valve is as shown by controlled a circle, which is reproduced in Fig.12. Of the 24 volt circuit includes a silicone rectifier (SCR) 121, which is connected in series with the solenoid for valve 80. A diode 122 is connected in parallel with the solenoid for valve 80 ^ switches to the rectifier in the inductive circuit protect that is formed by the solenoid winding. The rectifier 121 is activated by the sensor end 59, the engages contact 68 to complete the circuit through line 70 and resistor 123 for the rectifier. The magnitude of the switch-on signal is determined by resistor 123 and controlled a bias resistor 124 disposed between the gate and the rectifier cathode. If the Product level reaches the bottom of the sensor 15, the It closes circuit and triggers the relay to supply power to the solenoid and open valve 80. This will the compressed air line 75 is opened and the piston 48

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- 13 -

duct valve 30 closed. The switch 9h is opened by magnet 93 when the housing member 14 is raised by squatting 16 to release a container after it has been filled. This will open the circle and put it back for the next operation. The switch 94 and the magnet 93 can be replaced by an externally arranged and mechanically operated switch.

The feed line 36 for the product is immediately adjacent to the inlet port 33 with a throttling the flow Device 125 provided which "· a flow state higher Causes turbulence. The throttle device is designed so that there is extreme turbulence and a high pressure drop between the high pressure of the product and the much lower pressure of the back pressure gas in the container. this stabilizes the product for a period of time sufficient to package the product at high speed to know. A corresponding throttle device can have various forms. For example, a simple Line can be provided with a relatively small bore compared to the length of the line. Alternatively, a Length of relatively thin twisted strip material according to Figure 3 be used. Another form of restrictor comprises several tubes of small diameter, placed side by side are arranged in the supply line of large diameter. Another shape for a restrictor that is applied is commercially available in the form of a static mixing element,

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which consists of a number of elements, each of which consists of a single twist of a relatively thin strip of material. Some have a turn to the right and some to the left. These elements are arranged alternately in axial alignment in the product line. This leads to an alternating rotation of the product flow in opposite directions, so that one obtains extreme turbulence and a high pressure drop. During the operation of the apparatus, a container C, which is open at the top, is placed below the sealing cam 20. Thereafter, the vertically movable valve housing member 14 is lowered by the squat 16 into sealing engagement with the top of the container. Then the counter-pressure valve 6l is opened by the action of the lock 97. A counterpressure can thus flow into the container through the line 60, the channels 63, 64 and 65 and through the valve device 30. Eventually, when the back pressure builds, sufficient force is exerted on the valve member 30 and the bottom surface of the piston 48 to raise the valve member 30 and open the product control valve 30 so that the product is removed from the conduit 36, in which it is passed through the turbulence member 125 is treated, through the line 35 can flow into the recess 31 and at the open valve into the guide cone 23. A flow deflecting flange 126 near the bottom end of the valve means 30 helps deflect the product outwardly against the wall 26 of the guide cone 25 where the product flows downwardly in the form of a film onto the inner surface of the container. The back pressure exerting the piston 48

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raises, also leads to the fact that the tip 59 of the sensor 45 comes into contact with the contact member 57 in the upper part of the housing 29 and closes the control circuit. Therefore, when the level of the fluid in the container reaches the diode side of the sensor h5, the circuit is activated and the valve 80 is opened. Thus, compressed air can act on the top of the piston h8 to the valve device; 30 down and close the product valve. The back pressure air or gas flows back through line 60 and valve 61 when the container is filled so that this air or gas does not mix with the product. The vessel pressure valve 6l, which has remained open, is now closed by the lock 97. The housing 1K is then raised by the lock 16 to reveal the filled container C. Venn the housing Ih reaches the upper position, ö.er ^'T actuated ar; net 93 the normally closed switch 9k urn to open the control circuit, which then occupies its initial position when the housing is lowered .on the next container, so that then the switch 9't closed and the relay is activated for another cycle. The compressed air to the r-etätif'ung of the piston is vented through the beacon 87, so that the head in the Ausganfrsstellunp to ^TT iederholun ~ u a? Is transferred üllzyklus.

In the arrangement described, it is ensured that no ventilation tubes or shock valves are immersed in the product when a container is filled, and no ventilation is otherwise required before the seal with the upper side of the container is interrupted. Γ-ai it vivo, the F '". Llvor _r ranri under

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dry and hygienic conditions executed. On-earth ^ m can the case in front.-; also with lower Qe-'end jerk than in known ones Filling heads are carried out. It also only exists little risk of air being trapped.-The head becomes on the container for filling lowered so that the container can be guided in a constant horizontal plane. This is particularly advantageous when using rotary filling machines be applied in which the centrifugal force at high speeds are a significant factor, as they cause the product to be squirted out of the open-topped heat exchanger can cause when the containers are removed from the fall valves will.

A simple execution is provided to all canals and Parts that either r: iit the. "Product or deir. Counter-pressure circuit communicate, clean and sterilize. This is achieved by switching off approximately κ the supply of back-pressure air and instead / 'a high pressure cleaning or sterilizing fluid is replaced. Because of the constriction of the guide 45 'for the sensor according to FIG. 4A in the valve tappet 30 this liquid builds up under the piston 43 a pressure, so that the product valve 32 is raised and is opened even when no container is in sealing engagement with the head. By switching off the electric current for, control of the solenoid valve 80 is achieved that the High speed cleaning or sterilizing fluid through all back pressure lines and channels and product

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channels and. -ways flows and this reliably clears and cleans.

In the case of the executions according to the Pig. 3j13 and 14 it is believed that these are primarily intended for filling bottles, cans and other containers for carbonated beverages. The embodiments according to FIGS. 13 and 1 * 1 are designed for general use. The filling arrangements differ from one another only in that different sub-devices are arranged at the lower end. This becomes particularly clear by comparing _{FIGS. 3,} 13 and 14. In FIGS. 13 and 13 it can be seen that.2. various sub-assemblies can be inserted into the two threaded areas 125, 126. These areas are known to be referred to as the sealing sections. The lower sleeve 127 is externally threaded while the inner sleeve 128 is internally threaded to permit the insertion of various subassemblies which may vary depending on the particular type of filling operation. Each of the subassemblies has a few parts in common and one or two distinct parts. By assembling the correct sub-assembly of parts, the head 10 can be used to fill a number of differently shaped containers of different sizes. F, in different sensors can be used in approximately the same central position in connection with each different filling process. In each of the exemplary embodiments described above, the filling head 10 is mounted on a turntable with as many filling heads ₃ as there are

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each is desired. For example, a machine 100 can have filling heads distributed over the circumference of the turntable. A lower cylindrical sleeve member 128 is mounted in each filling head. At your lower section is au- ^D, en a second cylindrical Sleeves A, song 127 attached. The lower inner cylindrical member 123 has internal threads, while the lower outer cylindrical member 127 has external threads. The link 127 is vertical;.>; Leitba.r on the inner link 12 <? aufjrenomr.en and in his Eeve ^ un, ';; limited by a shoulder 129,130. This particular arrangement is not found in Fig. 3, but in the ^ii-77 ;. 13 and i. However, common to all of the exemplary embodiments for the filling head is an i £ olben £ liöd 'hu, a distributor 27, a valve body with a large, lightweight shape, a valve seat 3h, a valve sealing ring :; 33 and a spring | 52 The piston, the distributor and the spring are essentially identical.

The sealing device for sealing the unit during the filling of a container int modified unc. now includes a spring loaded balancer. The device serves a double purpose. On the one hand, it provides a means of sealing the container, bottle, can or dsl. During the filling process. On the other hand, it provides a cushion that moves vertically at the filling valve; within a range of about 12 rin or di-; l. Permitted without lifting the seal. This enables the filling valve to be raised or lowered with respect to the can or container in such a way that the filling level in the can or the like.

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is reached when the tip of the electronic sensor is reached by the rising liquid level in the can during the filling process .'-- it is touched. The sensor is mounted on the moving part of the valve, which can be raised and lowered. When the sensor touches the liquid in the can, a circle is closed to terminate the filling process. In the case The functions of this device are similar to a bottle or other container with a small opening. The spring load is provided in Figs. 13 and 14 together. In connection with a pressure compensation ring and in cases in which the device uses ir.it a can with a wide opening becomes, nan obtains a considerable reduction in the magnitude of the axial load in the sealing of the container during of the filling process. This is discussed in detail below.

In order to discuss the general elements a little further, it should be noted that the filling head is shown in the same position in each of the three embodiments. The piston 48 lies within the cylindrical element 128 and can move about 1.6 ram in the vertical direction in the element forming a cylinder. The construction of the sensor is different for each of the three embodiments shown in Fig. 3 _S 13 and 14. In Figure 3, the sensor 45 extends a short section upward into the filling head. In the exemplary embodiment according to FIG. 13, the sensor 131 extends completely through the filling head 10 and is held in place and on the stele by a collar 132 which is located in a recess 133 of the piston 134. The sensor 131 is thus through the collar

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132 attached to the Xolben. When the piston is moved up and down under the influence of varying pressures, the feeler also moves up and down by the same amount. This dimension maintains about 1.6 mn> ₃ when the piston 134 moves up and down in the normal cycle.

At the bottle filling device; ¹ ; According to Pi; ". lh , on the other hand, the recess 132, which in FIG. 13 receives the collar, receives a stuffing box 135 to prevent compressed air from flowing upwards and out of the universal filling head. In the case of the bottle filling device, the sensor consists of two parts The part 136 has a larger diameter than the lower part 137. In this embodiment the vertical sensor 138 or its narrower lower part slides through the gland 135 so that the sensor 138 extends into the bottle and thus the penetration of the sensor to a lower filling level, based on the position of the container mouth. In the case of a can or a container with a wide mouth, the sensor can protrude about 10 mm into the container In the case of a bottle, it may be desirable for the probe to extend into the bottle as much as three inches or so In order to obtain the correct filling level for each bottle size and to provide the consumer with the exact, predetermined length of the product. As already mentioned above, the sensor 138 for the filling head is made as a unitary body, but made of two sections. The upper actuation

409 83 8/02 55.

section I36 is relatively strong, while the lower sensing section 137 is relatively light and fast in diameter. The stronger or heavier section 136 serves to stiffen the sensor so that it is not bent during the upward and downward movement by the lever which is shown above the bottle filling device. It can easily be assumed that the length of the central probe in the modifications according to FIG. 13 and Ik can be varied within limits for greater or lesser penetration into the container to be filled. The sensor is used to control the filling level of all types of containers and can take different forms. By means of a set of sensors and corresponding bores in the lever arm as well as adjustment means on the lever arm to change its length, iran can fill bottles with different neck heights as well as bottles with different filling levels with the same filling head.

When the lower assembly contacts the container, the lower sleeve 128 is stopped and the lever I ¹ JO is actuated by crouching on the lower sleeve of the unit. The lever 140 in turn actuates the back pressure valve 141. In this way, the action of the filling head as it moves downward and in contact with the can and during the automatic seal causes the back pressure valve to open so that the filling process can begin.

In normal use, the movement of the inner is cylindrical Sliding element vertical. The lower inner and outer

409838/0255

Member is thus pushed back and forth vertically. When the lower assembly hits the can or container, the lower sleeve is brought to a stop and the back pressure valve is operated by the cam surface located on the lowermost outer sleeve 127, Tienn der Counter-pressure valve slide l40 slides over the cam surface IUl on this lowermost outer sleeve 127. The inner member 128 continues to move downward > when the lower sleeve 121 is stopped by the can. The lever IhO opens the counterpressure valve 141 when it is moved. Gas under counterpressure is thus conducted into the interior of the can. The pressure in the can builds up and this gas then moves up through the inner channel 1h2 of the valve stem 1h3. The pressure in the can builds up and this pressure is then applied against the lower piston surface 1h4 and causes the piston 134 to move up a short distance. The valve stem 1h3 is screwed into the piston 13h "Piston 13h moves up, the piston lifts valve stem-1 ^ 3. The splash 1h5 that surrounds the valve stem lifts the valve seat Ik6 and allows the product to flow into the can. An O-ring 33 or other resilient cast sealing ring forms a tight seal when the valve is closed. The product valve 1h3j1h6 thus opens and the product flows through the inlet channel 33 into the circumferential distributor slot 35. The product then passes down through the short channel h0 into the recess and through the space between the valve stem and the conical

409838/0255

shaped limb In f; nevJ - '. ß. Fig. 13. Ir. .. one FeIV Ueter Kit large: ^r ur> d, s'"> an open-topped box, in addition to a device for; provided easier Γinsteilen the level in eineiü container as vorLeschrieben, ■ a pressure equalization ring 1 ^ 9!. This - 'inf * is used to compensate for the high axial load that is exerted on a fault during the filling process due to the large area of the filling opening, e.g. when filling a can with an open top. When the filling head 10 moves down on the frame-mounted Γ-ehälters, it forms a pressure-tight seal rat the container. The sealing ring 221 presses against the upper / ^ ante of the can. In the embodiment according to Fic-3, considerable pressure is put into practice; ^v downward ^ e ^ s the Dosenvrand exerted v / grounded due to the force acting in Ricftung upward. This force comes from the compressed air or compressed gas inside the can. In the embodiment according to FIG. 13, the force acts downward, both through the lower cylindrical section, which is effective through the sealing member, and through the central stem cross-section of the valve. This central shaft area holds the valve seat 146. In this way, only a total force of about 22 to 27 kg is necessary to seal the container. This force is provided by a spring 150. Any other force is absorbed by the central valve stem area and the annular gas chamber 151, which is filled with air or gas, under the appropriate counter pressure required for filling the product. When the annular chambers are not under the back pressure

409838/0255

BATH ORIGINAL

would increase the amount of force necessary to achieve pressure against the can wall. The above pressure is sufficient ui: ¹ . to achieve a good seal between the top edge of a can and the sealing ring 221 of the fill valve. The counterpressure that is effective through the counterpressure valve also acts on the annular counterpressure channel and thus on the counterpressure channel. The annular channel I51 is filled with gas under counter pressure.

When the counterpressure builds up in the container, the pressurized gas is also released through openings 17 ^ in the volumes of the Liquid guide 175 passed to the annular channel I5I.

In Fig. Ih the openings 174 are on the walls of the liquid guide 176 omitted, so that the annular channel 177 does not absorb any counterpressure and is therefore always under atmospheric pressure is located. A pressure build-up is prevented by providing an opening 178 in the support device 179. To this The container is sealed by the action of the spring 150.

The drilled opening 173 afterwards. 13 extends to down in the area I80 and stands with the annular canal 151 in connection, so that sterilizing liquid during sterilization the channel 151 is supplied. Ir. In the case of the filling head 181 according to FIG. 14, the opening protruding downward becomes ISO? N their; the lower end closed by a plug Iß2,

4098 3 8/0255 BATH ORIGINAL

■ .lo. in this·. If the annular cone 177 does not coimt directly with the counter pressure or the ^Ti ro.iukt in connection, so that sterilization is not necessary. In the exemplary embodiment according to fig. 3 ^T - ^: it is necessary to apply a downwardly directed raft to the Dosemrard, which is the same as the; Gas pressure per unit area, r. is multiplied by the number of units of area of the cross-section. This force soot from below against the bottom of the can applied four den. . In this ^{T, r} else a normal force against the can walls in the order of 112 kg was r.ehr; * ei "AESS ^p ir.3 carried into effect, v ^r as nearly sufficient to -'erstörung the can.. In the present exemplary embodiment, the vertical force resulting from the counterpressure is of the order of magnitude: from 22 to 27 kg. In total, since the annular sealing ring 221 and the support ring: 222 are arranged vertically displaceable with respect to the inner conical element The sealing ring is made of an elastomeric material and the L-shaped support ring is made of a hard plastic or metal The force transmitted through the channel-shaped surface to the vertically extending flange of the container is the pressure within the recess multiplied by the horizontal area of the ring shown above the sealing ring 221. This force is quite small compared to the total force applied in the other embodiments must become. This force amounts to about 1 / k of the amount of force that is required in the other exemplary embodiments. For this reason, the can wall can be made of lighter sheet metal.

409838/0255

BAD ORIGINAt

and the pressure does not pose any serious problem. In each of the embodiments according to FIG. 13 and 13, a solenoid valve 155 is located on top of the universal filling head. As the product liquid is fed through line 36, it fills the container. The liquid in the container rises. At one; At a certain point, the liquid comes into contact with the sensor I3I. In the case of a container, for example a can, a circuit is closed when the liquid touches the sensor. The sensor 131 in the embodiment shown is attached to the piston by a collar which is sealed in a housing of the piston h8. The probe can then be moved up and down approximately 1.6 mm when the piston moves up and down in a normal cycle. The electrical path to earth is via the filling liquid, it is electrically conductive and carries an earth potential due to its passage through and over the metal parts of the filling valve. That is, as the liquid surface rises in the container it will eventually contact sensor 131 and complete a weak circuit from sensor I3I through the liquid in the container and then through the fill liquid supplied through the product valve. When the product valve 33 , 1 ^ 6 closes, the circuit is interrupted. However, by then it has already fulfilled its function. The function of the weak circuit is to operate the valve by operating solenoid I56 and solenoid valve 155. Solenoid I56 and solenoid valve 155 operate when low voltage current flows through the closed circuit (in each of the embodiments of FIGS. 13 and I4) and solenoid 156

409838/0255

-32- 24CK315

actuated on top of the assembly for valve 155 to operate on the top of the assembly.

As previously described, an electronic relay 156 and a solenoid valve 155 are located on top of the filling head IC. ^When the liquid has leveled the can to a predetermined level, the liquid contacts the sensor and an electrical signal is generated and passed to the relay which then actuates the solenoid valve 155. Checked τ, -uft under a pressure of 9 kg etva higher than the pressure of the final pressure Oe ^ ^ ases vrird _t now introduced into the .Pereich above the piston 13 ', the vrird sorit pressed downward this v;.. ird the roduktenvt? ; ntil closed, and the product ceases to flow lter s in -.- Hehr Oi e new lay of the relay and the ficlenoid control valve ;; ^he:;?. "P the Fi ^. 13 and Ih allow easy change and monitoring and improve accessibility. The position of the valve and the Feiais also allows a delay;.; of the sensor through the top of the assembly. This allows and facilitates the arrangement and replacement of the sensor for different containers.

The pressure manifold 158 shown to the right in Pie 13 contains controlled gas that is under a pressure of about 0.7 kg per era is higher than the pressure of the back pressure gas. The oteuergas under this pressure is now in the area 159 passed above the piston. Since the pressure above the piston 13h is now about 0.7 kg per cm higher

409838/0255
BATH ORIGINAL

~ 'j J ~

as the pressure below the piston, it moves downwards. Ua the piston fell · moved downward, connect the Products 33,1JiC valves ₃ when the flange l'un · lf 'of ■ ^ .Jitsrin 33, tSe _o en the lower Ventilsits 146 Ie _1- Cn. The product stops now flow into the container for \\. The new La ^ e of oteuerventil solenoid 15> ^ and the control valve 155 ^ equips light Zutjän _t) friendliness of the solenoid valve 156 uric of 155 for repairs and Zrsatzzvrecke. In addition, the solenoid 15 ¹ ^ and the valve 155 can be removed, so that the designs either according to FIG. 13 or Fi ^. 14 without any practical! Inder and the filling head it can be used. In addition, the sensor 131 and after Fi ^. 13 and lh extend through the top of the assembly. On the other hand, the sensor according to FIG. 3 cannot be extended by the top of the arrangement, unless it is provided by a three-way Mayaet valve SO. The operation of the valve? 3 and Gl and del. Would then not be possible. The position of the sensor is not influenced by the movement of the life in the embodiment according to FIG. 14.

The control pressure manifold 15-3 extends completely around the Machine and feed gas to all filling heads and is made of copper manufactured. The distributor I56 serves a;: - double triangle. He serves as a bus bar for conducting electrical current to the various relays 159 on the filling valves. It also directs the control pressure of the air to the filling valves. The line II6 between the; Pressure manifold and each of the valves is made of insulated material to prevent electrical conductivity between the manifold and the filling heads. One

-34-- 240A315

, separate line InO connects the; ^ ruc ^ air from the distributor i. \ it je: ier: der FälUcöpf;.?. The s is fed to the inlet port of the solenoid valve 155 and passed through the valve surface directly into the space 162 through 1. This pressure causes the piston to exert a downward force, see above ca3 when the head cam 16 according to Fig. 3 allows the lower movable part of the head to lower, pressing the sealing rubber 221 in a pressure-tight manner onto the container to be filled when the solenoid valve is operated by the electronic relay, -through the port I65 into the outlet; " IG6 and to control the sensor I3I to the head part of the piston 13 ^ in order to close the filling valve.

The fill valve remains in the closed position until the filled container is removed and a new, empty container is applied has been. The electronic relay I56 is on the Attached to the top of the filling head. The filling head is attached to the turntable for the filling machine. At the point where a A new, empty container is brought under the filling head, a fixed permanent magnet is arranged. When the electronic relay passes the magnet, the switch tongue 168 according to FIG. 17 becomes momentary closed. As a result, the solenoid is switched off immediately and air pressure is applied to the head of the piston 13 ** through the Chamber 167 into cavity 166 and through opening 165 through that Solenoid valve vented to atmosphere.

409838/0255
BATH ORIGINAL

This now allows the piston 13h to be raised, to be "grounded" by the back pressure gas that is in derr. Raun Ihh builds up when the container is filled with this pressure. The back pressure exerts a force on the underside of the piston 13h and causes it this, up against the force of aer spring 152 and against move the pressure exerted by the product on the flange 1h5 of the filling valve downwards. This is where the filling valve opened.

The back pressure gas is supplied to each filling valve by an annular Distributor I69 through line I70 and port 171 to the back pressure control valve IhI fed. VIif the moving part of the filling head moves down and seals on the container, the sleeve 127 is held by the container via the sealing rubber 221. This leads to the compression of the spring I50. At the same time, the lever IhO is brought into contact by the locks 172 with your back pressure valve IhI moved to open it. This allows counter-pressure gas down through the opening 173 in flow into the room 14h. From this the counterpressure reaches the 'container and builds up a pressure in it, whereby the container is sealed by the filling head. The pressure builds up in the room Ihh at the same time. This was the foregoing / ^ described. This description applies to FIGS. 13 and 13 You

Power is supplied from busbar 158 to the electronic relay 156 by means of an electrical conductor I6I. the

409838/0255

The parts of the filling apparatus are made of non-conductive material Plastic j uiT! to prevent "" the possibility of short circuits.

In all Ausführuncsbeispielen by the Pif ". 3.13 and Ih the probe to the will; ev.'ünschte> Mivea, and lowered when the head draw toward 3eh-" older lowers. In every exemplary embodiment, the sensor is used to determine the filling level in the container ?, W. ~ ^R s can notwendi "are, the probe into different" to pivot Tiveaus. This way of working is in Jir.lh. V.ν is a unitary part made from two pieces. By providing sensors of appropriate lengths and suitable holes in the lever arm, and with the help of a fine adjustment, the filling head can be set to different heights. Bottles of different heights and different liquid levels are filled with reference to the upper: Cehriterlippe ₃ under Staierunp. When the sensor is lowered into the bottle level control display within the bottle, the sensor is connected to the electronic relay. The in can interior of the bottle neck incoming fluid provides an electrical connection to the sensor, the liquid contacts Erde.Wenn _s v-ith a circuit is closed and the relay actuates the Solenoiu valve.

In the bottle design, the recess, polygamy, takes the Women 132 of the sensor accommodates, now a stuffing box 135 on, and the sensor 133 is arranged so that it can be through the

409838/0255

Stuffing box can slide to submerge in the bottle. In order to the sensor 138 is adjusted so that it has a predetermined level supplies relative to the mouth of the container. The feeler is moved up or down through a series of connecting links and levers 190 displaced by movement of the fill valve be put into action if this is up or down during the sealing or the release of a new container is moved.

The exploded views of FIGS. 15 and 16 show in detail the differences in the design of the valve tappets 143,134, the liquid guides 175,176, the collar 132 and the stuffing box 135.

The lower portion of the valve stem 143 has a flattened or beveled end 185 to direct the flowing product away from the probe. The lower portion of the valve stem 134 has a substantially straight end I86 that fits within the guide 176. The annular protrusion 187 extending around the valve stem 143 acts in a similar manner to direct the liquid away from the valve stem. The annular projection 188 of the plunger 184 has the same purpose as the annular projection 187 ' but is smaller due to the smaller available space.

The collar 132 according to FIG. 15 is attached to the sensor 131, while the stuffing box 135 of Fig.l6 prevents the passage of the liquid under pressure along the channel through the

409838/0255

the sensor I3O extends.

One shape of the electronic relay may be as shown in FIG. The effect is similar to that Relay according to Fig. 12. In addition, however, there is a time delay circuit which prevents current from flowing again to the silicon controlled rectifier 225 (SCR 1) and this switches after the arrangement has been reset by closing the not shown riagneten of switch 226.

By doing. Time delay circuit is part of SCR 225 initially switched off. Zs is therefore no voltage at the points 231 * 232 at. The timing is triggered by a brief short-circuit of part SCR 225 through switch 226 and the magnet. At the same time power is cut off from part SCR 227, in exactly the same way as is shown with reference to FIG. 12 and the switch 94 and the magnet 93 to the circuit postpone for the next operation.

As soon as the switch 22o opens, the time capacitor 228 (C1) is charged, to be precise through a first resistor 229 (R 1) until the voltage across capacitor 228 reaches the peak voltage of transistor 230 (UJT). At this moment the transistor 230 switches on and generates a pulse via the points 231 and 232. This means that current passes through the part SCR 2, 227, which is now fully active, so that when a positive current (earth) through one of the sensors 131, 138 according to FIG. 13 u.

409838/0255

flows, the part SCR 2,227 turns on and current supplies the solenoid valve 156 of Fig. 13 and lh. The holding current for part SCR 1, 225 is provided by the current through resistor 232 (R 4) and diode 233 (CR 1). The resistor 232 and a zener diode 234 provide a stable voltage for the part UJT 230. When the silicone-controlled rectifier 225 turns on, the voltage across part UJT 230 drops significantly due to the action of the part CR 1, 233 (one-way valve -Effect). This quickly restores and maintains a low voltage on capacitor 228 (C 1) so that the period of time is maintained with sufficient accuracy when the circuit rapidly repeats the cycle. The time delay is set by selecting the resistor 229 (R 1) and capacitor 228 (C 1) accordingly. These are chosen so that the sensor is inactive for approximately one third of the filling cycle. The fill cycle will typically last 3 seconds. Resistor 235 (R 2) is a temperature compensator for the circuit. It limits the temperature of the part UJT by limiting the current that can be supplied to that part. Resistor 23C (R 3) is a bias resistor for part SCR 1, 225 · Resistor 237 (R 6) is a current limiting resistor that leads from the sensor to the electronic relay.

A partial list of the advantages of the device can be put together as follows: The containers can with beverages that with Are carbonated, filled under pressure. It

409838/0255

a very quick filling of the oleic acid beverages in the original container. The machine is suitable for one; Wide range of containers of different sizes and different filling openings. Provision is made for that gas or air is discharged from the containers when these i..be filled with liquid the container wall is filled during the Driving process relieved of vertical forces; the order can in particular also be used for filling bottles; a multitude of the same filling heads is ara the same. Turntable 'mounted: a common source of pressurized gas can be used use; the filling valve is opened by turning the filling head after brought into pressure contact with the filling opening of the container at the bottom will; a higher dispensing speed per valve leads to a lower number of filling heads for a given output; the arrangement is more hygienic and therefore special ^ suitable for automatic control; the product comes directly from the source without possible contact ir.it air until the There is liquid in the tank; it can with low back pressure to be worked; the electronic ride height control means that no components are immersed in the product; the heads can easily be removed and monitored and cared for are, and it can be achieved a higher filling accuracy and less turbulence within the container, so that Air inclusions can be largely avoided.

409838/0255

Claims (1)

Claims Filling head for container filling machines, in particular for filling carbonated beverages into cans, bottles or similar containers, characterized by a hollow, cylindrical housing with a downwardly directed opening and consisting of an upper housing member (12) and one in this Telescopically displaceable lower housing member (14), at the lower end of which a sealing element, in particular in the form of a sealing bell (20) is mounted, which can be brought into sealing contact with the opening mouth of a container (C) fixed below it, by a in the lower housing member (Ih) arranged hollow product distributor (23,25) which has a connection to a product inlet opening which is connected to a product feed line (36) which in the immediate vicinity of the product inlet opening a device (125) for generating extreme turbulence and a high pressure drop, through a product feed valve (30) with a valve body in the product distributor with the possibility of movement between an open and a closed position to control the product flow through the product inlet opening, as well as a piston (48) which is slidably mounted in the lower housing member (Ih) and with the valve body (30 ) is connected, wherein the valve body is biased by an elastic member (52) normally in the closed position, while means (60) for supplying counter pressure in the container (C) and 409838/0255 for moving the valve body (30) into the open position is provided and a line for guiding the vacuum on the underside of the piston (48) and a device for lowering the piston are provided, while one on filling the container (C) on a predetermined basis Level-responsive device (59) for control of the piston (h3) is provided in the valve closed position. 2. Filling head according to claim I _3, characterized in that a device controlled by pistons: irdt one: control valve for transferring pressure medium to the top of the piston (h3) is provided and the control valve through a K i ve au-F "hl a direction (59) can be actuated. 3. Filling head according to claim 1 or 2, characterized marked that in one to the bottom of the piston leading counter pressure line a valve (l4l) is arranged, which chtungsringes from a to the movement of the Abdi or a cylindrical sleeve of the lower housing member (Ih) responsive device (140) is. 'ί. Filling head according to claim 1 to 3> characterized in that the sealing device a sealing ring made of elastomer «! Material to attack on the upper edge of the container, a holder for the sealing ring and external parts on the lower outer surface 409838/0255 of the lower outer housing to "ontare the holder . 5. Filling head according to claim 1 to H ₃ characterized p: eke η η is characterized in that a hollow adapter piece for sealing engagement with the container edge and an outer cylinder on the lower surface of the lower outer housing for mounting the adapter piece are provided, while a substantially Cylindrical ¹⁷ IiJssifjjkeits- ^ ührun ^ sn'lied (1h3 ₃ 176) with a valve seat on the upper end face with the valve body to open and close e'er product opening works together. 6. Filling head according to claim 3 to 5> characterized in that the sealing device has a support ring (179) has an L-shaped cross-section, the longer annular leg on the outside of the ir ?, essential cylindrical product guide s "liedes (176) Pleitet. 7 · Filling head according to claim 6, characterized in that an elastomer sealing ring; in the Inside corner of the support ring (179) is arranged. 3. Filling head according to claim 1 to Ί> characterized p: ek en nz e ichnet that a pressure distribution line made of solid metal is provided equiaxially for the distribution of the pressure medium and for the line, electrical current and Leitun. ^ Sverbiridunfren from the roughness above the piston to a connection by doing 409838/0255 - hh - lead downward open upper housing, and that between electrically insulating connecting portions are provided between the manifold and the terminal, while a solenoid (156) is electrically connected to the distribution line (I58) for actuating the back pressure control valve (155). 9. Filling head according to claim 1 to 8, characterized in that that the level sensor (131,138) along the vertical axis of the filling head αμΓοΙι the hollow housing (10, 18l), the product distributor, the feed valve and extends the piston. 10. Filling head according to claim 1 to Q ₃ characterized in that a collar is provided on the sensor which is attached to the plunger in such a way that the sensor and the piston can be moved together. 11. Filling head according to claim 1 to 10, characterized marked that inside the piston a Stuffing box is provided for hermetically sealed passage of the sensor. 12. Filling head according to claim 1 to 11, characterized characterized in that the probe has a lower portion and an upper portion of the opposite larger cross-section and a mechanical device for lowering the sensor into the container when lowering the Filling head and vice versa. 409838/0255 13. Felling head according to claim 1 to 1?., D a d u r c h ? K e k e η η, verifiable net that ο in electrical conductor r.it dor Product ~. "PeiseIcitun-;! Verbun; '» .- is originally =.. "Iaa product at a first electrical potential hold, and that an electrical conductor π it the · Ot-Buerdruckverteiler (15 ^) is connected to. to supply a second potential to a relay (Ifo) when the Xr is closed when the sensor in it touches the product level. 14. Filling head according to claim 1 to 9, characterized in that an all ^ enein round! .Alter for the sealing ring ^ at the lower end of the lower GsbiLuse ^ lieues (1 ^! 4) ihontiert and this a round Fl.'issi ^ keitsleitun " on the outside of the valve body una ii. Inner dos lower J.'ndes aes lower case.! Use -_: song 2U {_, eorönet is, w'ahvenü sicn a ringföri:; i ^; e G ask arauer ui = i the telescopic guide Iierur :, extends and at least (! l · ^1): a üffnun _o svjischen these and v.ei-'i closed Raui.t between the lower Genäuser ^ song and dei-i containers (C) is provided, so is * - the pressure zv / isehen this Rauu and the Gaska..xier from {.; Is verifiable. 15. A filling head according to claim 2 to 9, characterized in that a round alice my Dichtrint £ Eke η η-ze ichnet; is -body r.ontiert at the lower end of the lower Gehiluse ^ lieaes and a pressure-tight seal ϊ-.iit the outer surface of a round The cylindrical guide ₃ forms the outside of the valve body and inside the lower one 409838/0255
BATH ORIGINAL - he end is mounted the lower Gehausegliecl.es. 16. Filling head according to claim 1 to 15, characterized in that a generally cylindrical Protective part for the sensor protrudes downwards from the flange area of the valve body and splashes the sensor prevented. 17 · Filling head according to claims 1 to 16, characterized in that a cam with the sealing device, ¹ ? is connected and movable therewith, while a movement decrease member is mounted on the lower housing member for opening the gene pressure valve when the sealing ring rests sealingly on the container edge. 18. A method for filling containers with beverages or the like., Characterized in that one electrically conductive sensor is introduced into the container up to the desired filling level and then the liquid along the side walls of the container so that the sensor is only switched on when the flow limit changes the liquid flowing into the container has stabilized, after which the liquid flow is maintained, until the liquid level has reached the sensor, which closes a shutdown circuit. 409838/0255