DE8213939U1 - Filling valve - Google Patents

Description

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1006/82 - 3 - tumsctvcberan the German Patent Office, Munich wm May 31, 1985

Filling valve

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The innovation relates to a filling valve according to the preamble of the claim.

The use of a probe to determine the liquid level and delivery of a pulse to close the associated Filling valve is already known from US Pat. No. 585,264 from 1897. This filling valve design has an effect on this Liquid valve an electromagnet, which protrudes from a with a filling tube in the pressed bottle and from the conductivity the level probe that can be influenced is controllable. When a predeterminable fill level is reached in the Bottle or the probe, a circuit is closed, whereby the excited electromagnet closes the liquid valve. This Thought was in the patent literature, for example, by the DE-OS 1 532 560, DE-OS 1 943 503, DE-OS 3 015 132, NL-PS 7107235 and DE-OS 3 019 940 will be followed up. In the aforementioned publications Essentially, minor modifications of the structural details have been made to the prior art. The Publications, however, have in common that upon reaching one the probe detecting the filling level, a pulse is triggered which is used to close the associated liquid valve will. In NL-PS 7 107 235 it has also already been proposed that the pulse triggered by the liquid level

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with a time delay to the closing process of the liquid valve let it take effect. This idea is also taken up by DE-OS 3 019 940, whereby after addressing one of the The liquid valve below the liquid valve can be actuated by the filling material Specification of a correction factor is closed with a time delay. Especially when using microprocessors, this The aforementioned document also proposed that the time from the start of filling to the beginning of the cycle phase of a filling element Schnei! Fill, the time from the start of filling to the end of fast filling and the time from the activation of the pulse generator to the closing of the liquid valve of the associated Fül1 element is specified will.

Overall, these well-known proposals will take a certain amount of time Suggested as correction time after the closing impulse has been given, However, the immediate behavior of the liquid to be filled and the processes in the bottle derived therefrom during of the final filling process is only approximately predetermined in time and be taken into account. The time-dependent incorporated correction phases are not able to reflect the actual processes in the bottle especially in the final filling phase, however also in the initial filling phase, in some way to trigger the closing impulse of the filling valve or other process sequences. This is a significant disadvantage because a large number of change factors during a filling process

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1006/82 of August 8, 1985

act on the filling process. For example, pressure fluctuations in the supply line of the product, different CO 2 contents, changed temperatures and the like. Can not be detected or approximately can be taken into account.

With the present innovation, the way should now be shown, the To be able to follow the filling process exactly during the entire process and, if necessary, influence or correct it, whereby it is insignificant is whether the filling process of the immediately supplied bottle can be influenced or the filling process during another Rotation of the filling machine, which is then filled with a corrected filling method based on the previous events can be filled.

While avoiding the indicated disadvantages of the known filling valves becomes the underlying task of the innovation with a filling valve the aforementioned type achieved in that the air and / or filler pipe and / or the outside sensor at least three in the direction of the rising liquid level on top of and / or overlapping each other pending sensors or pulse paths that can be scanned independently of each other having. According to the invention, the sensor sections can cover the entire surface be arranged at a distance from one another on the circumference of the air and / or filling pipe.

But it is also conceivable to use the sensor sections as a jacket cross-section to be arranged partially on the circumference of the air and / or filling pipe.

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Further features of the filling valve emerge from the further claims

> ^l In this way, it is now possible to immediately reduce all factors that occur during the filling process or that influence the filling process in order to correct the filling phase.

I rate. Since the corresponding changes are not immediate

]: Adjust from bottle to bottle, this way you can set the

■ parameters determined during the filling of a bottle

■ i counted and for the filling process during a cycle

I implemented and used the next bottle following the filling machine J will be. Overall, this results in an excellent fit I to the beverages to be filled, with already during the I end phase of the filling process corresponding corrections up to I closing phase can be made.

By arranging several pulse paths one above the other, already in the first phase of the filling process, d. H. in the running phase, a filling pulse is transmitted and for the determination of the further filling process can be used. With another Impulse path can convey impulses to initiate a braking phase are, for example, by changing the return gas cross-section, Reduction of the inlet cross-section at the valve cross-section or by changing the pressure conditions in the container to be filled. Another pulse path is the one required in each case Assigned to closing phase. This pulse path can be another Follow the pulse path, the task of which is to change the

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Closing period between braking phase and filling phase depending on behavior! of the liquid in the bottle during the next filling process to undertake.

The innovation is explained in more detail below using an exemplary embodiment shown in the drawing. From Fig. 1 a filling valve 1, which is only hinted at, can be seen, its valve body 2 electromagnetically or the like. In the closed position can be spent. Below the filling valve body 2 there is a centering tulip 3, which forms the seal between the filling valve 1 and a bottle 4 makes. Depending on the type of filling valve used, there is a filling tube or a filling tube inside the bottle 4. a return air pipe 5. Because the explanation is not necessary here, the connection of the filling pipe or return air pipe 5 with the actual filling valve 1 is not shown, since it is used for fastening and arranging the tubes 5 in the filling valve and for forwarding of the Impulse offer different variants. On the filling pipe 5 are pulse paths according to the embodiment shown as an example 6 to 9 arranged, the individual pulses that can be queried independently of one another when they come into contact with the to be filled Transmit liquid. The sensor sections 6-9 can e.g. be arranged. However, it is also conceivable, as shown, for example, in the upper area of the filling pipe, to have the sensor sections as a jacket section to be arranged partially on the circumference of the pipe, with the respectively assigned sensor sections overlapping. these can

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otherwise be designed as pure sensor surfaces. Optoelectronic or fiber optic sensors can also be used. When using fiber optic or optical sensors, one or more reflection pulse guide surfaces and corresponding Gates 10, as can be seen from FIG. 2, are used. Regardless It is also conceivable to provide an outside sensor 11, the surface of which faces the bottle with corresponding sensor sections 6 to 9 is equipped.

The filling process proceeds as follows:

The incoming liquid first reaches the bottom and wins depending on the intended start-up filling speed at height and reaches the first pulse path in the ascent direction 6 resp. possibly further pulse path, not shown. at Reaching the first pulse path 6 can, if desired, a faster filling phase than the first filling phase be initiated. It is already possible to set the time interval between the start of filling and reaching the first or another Sensor for assessing the possibly necessary Refer to Fül1 correction. As soon as the liquid level has reached the sensor section 7, a braking phase, for example be undertaken by partially reducing the return gas cross-sections or changing the inlet cross-sections of the filling valve. at When the sensor path 8 is reached, the closing phase is initiated. Depending on the type of liquid to be filled, this reaches more or

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The last sensor extends 9 less quickly, including any remaining liquid residue from the space above the bottle, whereby the area between the sensor path 8 and 9 can be used as a correction path. The results of this correction phase can be pre-saved and used for the next filling of a bottle or for the next cycle. This results in an immediate adaptation of the next filling process in question to the possibly changed circumstances. The individual pulse paths serve to provide information at an early stage for the further filling process or for further storage and control functions of a subsequent filling process. The correction phase between the pulse paths 8 and 9 can also be used to influence the next closing phase, taking the changed parameters into account. So it is conceivable to increase the overall performance of the filling machine or to let the associated filling valves close quickly or more slowly, so that the filling behavior of a certain liquid can be taken into account. Regardless of this, a defective filling valve or the like can be identified at any time. The individual pulses emitted are e.inem appropriately designed microprocessor or the like. can also exercise control functions in the aforementioned manner.

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Claims (7)

·· · · Patent Office »MunichJ Π Ιί ^ ζ • · · DeutscheScMe - 1 ~ zumSchiöOenan Qdb1006 / 82« ..8. 8. 1985 claims for protection 1. Filling valve, consisting of a closable by means of a pulse Filling valve and an air or filling pipe which can be introduced into the interior of the container with a filling height detector and / or a Liquid level or the respective filling level from the outside determining sensor or the like., Characterized in that the Air and / or filling pipe (5) and / or outside sensor at least three one above the other in the direction of the rising liquid level and / or has overlapping guides or pulse paths (6-9) that can be queried independently of one another. 2. Filling valve according to claim 1, characterized in that the sensor sections (6-9) over the entire circumference of the air and / or Filling pipe (5) are arranged at a distance from one another. 3. Filling valve according to claim 1, characterized in that the sensor sections (6-9) as a jacket cross-section over part of the area Perimeter of the air and / or filling pipe (5) are arranged. 4. Filling valve according to claim 1, characterized in that the Sensor sections (6 - 9) are designed as sensor sections. 2 - zumSctxeöenan c · · ■ · · • c LJ ι ro; [^ / «4« f SMe - m
from the 5. Filling valve according to claim 1, characterized in that an optoelectronic sensor is arranged as a pulse generator, 6. Filling valve according to claim 1, characterized in that fiber-optic sensors are arranged as pulse generators. 7. Filling valve naci. Claim 1, characterized in that an optical sensor is arranged as a pulse generator, which has one or more reflection pulse guide surfaces and / or sections having.