Cleaning and liquid contact with solids – Apparatus – With means to movably mount or movably support the work or...
Patent
1996-11-14
1998-09-01
Stinson, Frankie L.
Cleaning and liquid contact with solids
Apparatus
With means to movably mount or movably support the work or...
134166C, 134169C, 134168C, 134166R, 134170, B08B 902
Patent
active
057996792
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention concerns a device for washing the cups in a milking head. The device comprises an axially displaceable milking-head holder and a fitting therefor. The cups fit over rinsing nipples on the milking-head fitting. The axis of the milking-head holder is eccentric to that of the fitting. The milking-head holder has an alignment rod.
A device of this type is known for example from U.S. Pat. No. 3,012,566. The alignment rod is a rack that engages a manually operated pinion. Milking heads of different sizes dictate a considerable rotation of the pinion to properly position the milking heads vertically while the cups are being rinsed. If this adjustment is neglected, the cups may not rest correctly against the rinsing nipples, and rinsing will be unsatisfactory.
Another teat-cup rinsing device is known from German GM 8 001 234. It is accommodated both in the parlor and immediately next to the machinery in a separate room. The milking-head fitting and nipples are fastened horizontal into the device in a specific position. The cups are introduced into the device vertically, with their openings resting against the nipples. A manifold communicates with the cups by way of short sections of milk-removal hose and is suspended above the cups in the milking-head holder. Since the distance between the milking-head holder and the rinsing nipples is fixed, unavoidable differences in the size of the milking heads will induce kinks in the milk-removal hose sections.
Sometimes the cups will not rest absolutely perpendicular over the rinsing nipples and hence with their openings flat, and the connection can leak. Rinsing will be unsatisfactory. When the milking-head holder is too high, the cups will not be able to reach the nipples at all. Even when the milking-head holder is correctly adjusted, it will be impossible to position appropriately if the milking head is provided, as is now conventional, with cups of different heights and short milk removal hose sections.
Inserting the cups into and extracting them from the device is also especially difficult. They need to be introduced into cutouts in a holder and can accordingly not be extracted automatically by using one of the cylinders usually employed today for milking to pull on a release cord.
SUMMARY OF THE INVENTION
The object of the present invention is to improve the generic teat-cup rinsing device by facilitating adjustment of the milking head holder.
This object is attained in accordance with the present invention in that the alignment rod slides easily back and forth axially in a guide sleeve and in that the overall device can operate in a specific position wherein the axes of the milking-head holder and the milking-head fitting deviate from the vertical.
Since the milking-head holder slides back and forth only inside the milking-head guide sleeve, it can easily be adjusted to milking heads of various dimensions. The deviation of the axes from the vertical generates friction in the guide sleeve. The friction partly compensates for the weight of the sleeve and accordingly relieve the short milk-removal hose sections. The ratio of weight compensation to the other forces acting on the rinsing nipples can be optimized by varying the device's slope.
The milking-head alignment rod in one advantageous embodiment of the present invention is prevented from rotating in the guide sleeve. This approach compensates for forces of deflection generated by communicating hoses, and the milking head will remain secured at the center of the milking-head fitting.
Another advantageous embodiment of the present invention is characterized in that the milking-head fitting is loosely attached to the teat-cup rinsing device, automatically compensating for differences in the lengths of the individual teat cups.
The rinsing nipples in another advantageous embodiment are loosely attached to the milking-head fitting. The result is a secure seal between the rinsing nipples and the teat cups even when the cups are not precisely perpendicular to the mil
REFERENCES:
patent: 2650179 (1953-08-01), Anderson
patent: 2691381 (1954-10-01), Strunck et al.
patent: 3012566 (1961-12-01), Baker
patent: 3040755 (1962-06-01), Sigmon
patent: 3958584 (1976-05-01), Jones
patent: 3964526 (1976-06-01), Sindermann
patent: 4964444 (1990-10-01), Hanerus
patent: 5405452 (1995-04-01), Anderson et al.
Stinson Frankie L.
Westfalia Separator AG
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