DE1561991A1 - Container filling machine - Google Patents

Description

BRATBY & HDICHLOTE LIMITED, Manchester 18 / Großbr,

"Container filling machine"

The present invention relates to a container "füllJKasohine with a number of Gegendrnetefüllküpfen and grageordneten Behält03? _S carriers which corresponding container! ■ stlt bring the corresponding filling head in sealing contact, wofcgi the filling head sunäehst gas under pressure dureh a counter-pressure pipe into the container brings" and then pour liquid into the container _o The expediency holder - such a filling machine is referred to in the following as a "filling machine of the" type described ""

When liquids are filled into Metallblichsen, it is highly desirable, auaauschließsen air from the interior of the sleeve to thereby reduce the possibility that the liquid during the Piillvorgangs air dissolves _o

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This is to prevent the can and / or its contents from being attacked or changed by the air. The present invention is based on the object of creating a filling machine which largely or completely removes air from the container during the filling process. Cans, bottles or other containers come into question as such containers ₀

The object is achieved by a filling machine of the type specified at the outset, which is characterized by a device which initially leads each carrier with the corresponding container to the corresponding filling head, without that a seal takes place, and which then actuates the filling head, so that gas under pressure i through the counter-pressure tube flows in to flush the air out of the container before filling, before the container with the head in sealing Plant is brought.

The carriers are expediently pressed downwards and by followers on the holders that cooperate with a container support cam rail forcibly to one Up and down movement caused to thereby the container To feed filling heads and pull them back again. In this case, the device that initially guides the carriers with the containers towards the filling heads,

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without the container with the. Filling heads are brought into sealing contact ₉ consist of a correspondingly shaped section on this cam rail.

The invention will now be described in more detail with reference to a preferred embodiment shown in the accompanying drawings explained.

In the drawings show:

Pig. 1 is a schematic plan view, which generally explains the preferred form of execution (this figure is only used to facilitate understanding of the invention, ee it is not intended to explain practical construction details in any way)!

Pig 2 is a partial side view showing the three successive pull heads and associated container supports of FIG

Explain embodiment of Fig. 1?

Pig · 5 is an enlarged partial cross-section showing a flushing head and the associated container carrier and container from Pig. 2 explain;

Pige 4 a view similar to Pig 3 _t but with a further filling head and the associated container door _; anger

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and container explained? and

Figures 5 and 6 are similar views to Figures 3 and 4, which however, explain the machine if it is set up to fill bottles instead of cans.

The counter pressure tank filling machine according to FIGS. 1 to 4 ™ has an annular filling tank 10 which can rotate around a vertical axis and has a number of counter pressure filling heads 11 inside, these filling heads being spaced around the annular filling tank 10 and each downwards through the bottom of Lank hindurchragtο the filling heads terminating at its bottom in each case a sleeve 12, which is arranged in an annular resilient seal 12a, through which a counter-pressure pipe projecting 13, the bottom at its end sits a manifold 14 be-). The tank 10 has connections 15 »16 (they are indicated schematically in FIG. 1) for the supply of liquid (for example a carbonated beverage) to be filled into the container, or for the supply of gas (for example carbon dioxide , Nitrogen or another suitable gas) under pressure, the gas being fed into the space above the liquid. In Fig. 1, the tank 10 has only nine fill heads, but it will be understood that any practical number

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such heads 11 can be provided,

Each filling head 11 has a gas valve 17 "which can be opened by actuating a Gegendrucknockens 18, wherein the actuator with a fixed Uockenstab 19 is made, the above de _s tank 10 is disposed, thereby Sas from the space above the liquid in the tank 10 in the Ge conditions pressure pipe 13 and can be allowed to flow out of the manifold 14 at the lower end of the latter pipe. Each filling head 11 also has a liquid valve (not shown) which, when pressure builds up in a container, such as ZoB _0, opens in a sleeve 20j pressed against the sealing sleeve 12, so that liquid flows into the container.

Below the tank 10 and rotatable therewith a container receiving evorrichtung is provided which besitztj a series of vertically movable container support 21, each of which is aligned with a respective filling head 11 _o Each carrier 21 has a cam follower in the form of a roller 22, which at a container carrier cam rail 23 rests at the bottom (Fig, 2) o A corresponding spring or a pneumatic plunger (not shown) pushes each container carrier 21 upwards, and the rail 23 forces the carrier 21 to move up and down as required, so that the containers 20 from a feed conveyor 24 · and a star wheel

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25 (only shown very schematically in FIG. 1) can be taken over by the star wheel 25 fed to the corresponding filling heads 11 for the purpose of filling. From a further harvesting knife wheel 27, the filled Container 20 taken away from the Füllköpf en 11 and become one Outfeed conveyor 26 out (the conveyor 26 and the star wheel 27 are also only shown schematically in Fig. 1).

According to the invention, the container carrier cam rail 23 has an essentially flat part 28 which is used when the respective container carrier 21 and its container are lifted 20 feeds the filling head 11, causing a dwell time in the lifting movement, namely just before the top or the mouthpiece of the container 20 is brought into sealing contact with the seal 12a of the filling head 11 and after let the de gene pressure pipe 13 in the container 20 entered. Furthermore, the Gregendrucknookenstab 19 is arranged with respect to the flat part 28 of the Kookenscbiene 23 that the carbon dioxide gas or another suitable gas Counter-pressure pipe 13 supplied during the above-mentioned Terweil tent we do

As a result, everyone will be affected during the operation of the machine Container 20 'is supplied with gas after the respective container has been lifted against the filling head 11, but before this

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rests on the latter in a sealing manner, whereby 'all of the air is removed the container 20 is rinsed out ο This 8 rinsing sets continues until the cam follower 22 runs off the flat part 28 of the hook rail 23 and the container 20 with it the filling head 11 is lifted into sealing contact, "so that he is known to be put under counter pressure and then with Liquid can be filled as discussed above

The invention is not limited to the precise details of the above exemplary embodiment and it can also the most diverse modifications can be made.

For example, in Fig. 2 with dashed lines is a modified arrangement of the lifting and lowering device for the Container carrier 21 shown. According to the above description, these carriers are associated with springs or pneumatic Plunger pushed up, and the rail 23, which is above of rollers 22 controls the lifting of the carriers 21 against such a spring pressure and also causes it subsequently a lowering of the beam 21 ο in the case of the mentioned Modification, the carrier 21 are each lifted by a pneumatic scooping piston, and the rail 23 above the Rollers 22 can optionally be omitted. There is a lower rail 23a below the? Rollers 22 provided, which have substantially the shape of the rail 23, i.e. *,

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that they have a dwell part 28a * Below 4s Rail 23a is etna in the same height never the end the same a valve actuating part 34 is provided which cooperates with a compressed air valve 35 on each carrier 21, so that when each carrier 21 passes the part 34, the valve 35 is opened so that compressed air flows into the corresponding penumati plunger and the carrier this is lifted "

In this modification, the pneumatic plunger does not take part in the initial lifting of each carrier which elevation the corresponding container 20 is brought to the dwell position, in which position the upper part or the mouthpiece of each container is just below the seal 12a. This movement is achieved by Bollen 22, the run up the rail 23a to the dwell part 28a · If the role runs over the dwell part 28a, then that will Valve 35 opened by the valve actuating part 34, so that the corresponding pneumatic plunger pushes the upper part the container or its mouthpiece presses into sealing contact with the seal 12a. The valve 35 is on a the corresponding point of the filling cycle is switched off again, so that the carriers 21 lower themselves again due to the force of gravity

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not shown let »

This embodiment has the advantage that one can see the eye in which the container is sealed by the seal 12a is, by a corresponding setting of the position of the valve actuating part 34 can be determined exactly.

Of course, the invention can also be used for filling containers other than cans. Examples of single containers are the bottles 30 of Mg ₀ 5 and 6, with a corresponding seal 31 and a corresponding sleeve 33 at the bottom of each filling head 11 and a corresponding counter pressure tube 32 »which is inserted into the container is used *

PATENT CLAIMS:

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Claims (1)

PATBHT TO SPfiÜCHJB 1 «, holds a series of counter pressure filling heads and tentatively arranged container he supports, which corresponding container with the corresponding filling head in sealing system initially bring gas to the filling head Introduces into the container under pressure through a counter-track pipe and then pour liquid into the container, characterized by a device which first each carrier (21) with the corresponding container (22) to the corresponding Filling head (11) leads to the opposite, without a seal taking place, and which then actuates the filling head (11) so that gas under pressure through the counter pressure pipe (15) flows in to remove the air from the container (20) before filling Rinse out before the container old the head in sealing Plant is brought. j. 2 ο container filling machine according to spoke 1 »characterized in that the carrier (21) by followers (22) to the Supports (21) connected to a container support cam rail (23) work together, forcibly moved up and down so that the container (2 o) moves the filling head en (11) and be moved away from it again. 009820/0580 3. Retains according to Ullmaechine. Claim 2, characterized in that the device which begins the carrier (21) towards the filling head (11) without her thereby are brought into sealing abutment, comprises a correspondingly shaped section (28) on the cam rail (23). 4. Betialterfüllmaschine according to claim. 2 or 3 »characterized in that the container carrier (21) pushes up overall λ and the follower (22) below the Hocken- Sohiene (23) run. '■ 5. Keeps arfUllmaechine 2 or 3 tons after opening It is worth knowing that each container carries (21) from one associated pneumatic plunger can be lifted, the cam rail (23a) being arranged below the follower (22) and serving to feed the carrier (21) with the containers (20) towards the filling head (11) without ¹ - ■ ( they are thus brought into sealing system, and that one Device is provided, which actuates the pneumatic plunger ansohliessend, and the container (20) against the Sifting the filling heads (11) to press. 6. Method of filling a container «in which Gas is fed into the container in order to put the container under counter pressure before filling it with liquid, 009820/0580 characterized! that the pressurized gas is fed to the container »before it is brought into sealing contact with the filling head of the machine in order to flush air out of the container · 009820/0580