Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1997-06-16
1999-01-26
Stinson, Frankie L.
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134170, 134166R, 134166C, B08B 902
Patent
active
058633499
DESCRIPTION:
BRIEF SUMMARY
The present invention refers to a device for cleaning milking cups according to the generic clause of claim 1.
Devices used in milking machines for cleaning the milking cups and the milk lines extending from said milking cups are known, said devices having a cleaning element which is adapted to be attached to the open end of the respective milking cups and by means of which rinsing liquid is conducted into the interior of the milking cup so that the milking cup interior and the milk line extending from said milking cup interior are cleaned by the rinsing liquid. In most cases, the milking cup to be cleaned and the cleaning element attached thereto are incorporated in a closed rinsing-agent circuit.
It turned out that cleaning which is limited to the interior of the milking cup and which primarily serves to remove milk residues does not suffice in the long run, and that it is also necessary to clean the outer surface of the milking cup.
DE 38 31 601 A1 discloses a device for cleaning the outer contours of teat cups and milking cups, respectively; in said device, the milking cups are arranged in a housing in which rotating brush heads are provided for the purpose of cleaning. The brush heads especially act on the open end portion of the milking cups, a cleaning liquid being supplied simultaneously.
A further cleaning device is known from DE 42 93 178 T1. This known device comprises a cleaning element including a component which is adapted to be introduced in the opening of the milking cup and which is provided with a rinsing-water nozzle, said component being used for cleaning the interior of the milking cup. The cleaning element is additionally provided with rinsing-water nozzles, which, in the attached condition of said cleaning element, spray cleaning liquid onto the end face of the milking cup for cleaning the outer surface thereof. In order to prevent excessive lateral splashing of the cleaning liquid sprayed onto said end face, the cleaning element is provided with a bell-shaped shield partially enclosing said milking cup. Since the cleaning liquid penetrates into the surroundings, it must not contain any intensively active cleaning agents.
AU-B-564242 discloses a device according to the generic clause of claim 1, which includes a cleaning element comprising a cup-shaped member and a pin projecting from the cup base coaxially with the cup member and having an annular constriction. When a cleaning operation is carried out, the opening edge of the teat-rubber opening projects into said constriction and the cup-shaped member circumferentially abuts on the edge of the teat-rubber end face so that an annular rinsing chamber is formed. A rinsing flow is discharged from the pin close to the cup base and flows first approximately in a direction at right angles to the end face of the teat rubber and then approximately parallel to the end face of the teat rubber towards the teat-rubber opening.
It is the object of the present invention to provide a cleaning device according to the generic clause of claim 1, which is used for cleaning milking cups, which has been improved in comparison with the prior art as far as the cleaning of the outer surfaces of the milking cups is concerned, and which satisfies the increased demands on hygienic milk production.
The device according to the present invention by means of which this object is achieved is characterized in that the cleaning element is adapted to be attached to said milking cup such that a flow chamber is formed for producing a rinsing flow along an outer surface area of the milking cup which is to be cleaned.
By means of this solution according to the present invention, an intensive cleaning flow can be produced across a surface area of the milking cup to be cleaned; said surface area can also comprise lateral surface areas of the milking cup, in addition to the end face at the open end. By means of this cleaning flow, it is especially possible to prevent, even at the lateral surface areas of the milking cup, the formation of germ centres over a prolonged period
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Laub-Maier Maria
Maier, Jr. Jakob
Maier, Jr. Jakob
Stinson Frankie L.
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