WO2003003817A2 - Unite de collecte de lait - Google Patents

Unite de collecte de lait Download PDF

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Publication number
WO2003003817A2
WO2003003817A2 PCT/EP2002/007074 EP0207074W WO03003817A2 WO 2003003817 A2 WO2003003817 A2 WO 2003003817A2 EP 0207074 W EP0207074 W EP 0207074W WO 03003817 A2 WO03003817 A2 WO 03003817A2
Authority
WO
WIPO (PCT)
Prior art keywords
milk
closure
collection unit
collecting unit
cavity
Prior art date
Application number
PCT/EP2002/007074
Other languages
German (de)
English (en)
Other versions
WO2003003817A3 (fr
Inventor
Jakob Maier, Jr.
Wilfried Hatzack
Original Assignee
Maier Jakob Jr
Wilfried Hatzack
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maier Jakob Jr, Wilfried Hatzack filed Critical Maier Jakob Jr
Priority to DE20220833U priority Critical patent/DE20220833U1/de
Publication of WO2003003817A2 publication Critical patent/WO2003003817A2/fr
Publication of WO2003003817A3 publication Critical patent/WO2003003817A3/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01J—MANUFACTURE OF DAIRY PRODUCTS
    • A01J5/00—Milking machines or devices
    • A01J5/04—Milking machines or devices with pneumatic manipulation of teats
    • A01J5/041—Milk claw

Definitions

  • the present invention relates to a milk collecting unit with an outlet opening and a plurality of inlet openings and a cavity which can be connected in terms of flow through the inlet openings via milk lines to a plurality of milking cups and which can be connected in terms of flow via the outlet opening to a milk collecting line.
  • Mechanical milking uses a milking cluster which essentially comprises a plurality of milking cups, a milk collecting unit and correspondingly flexible connecting lines for the flow connection of the milking cups to the milk collecting unit.
  • the milk is sucked off from the milk collecting unit via a central milk collecting line and fed to a central milk collecting container.
  • Several milking units which are arranged in so-called milking parlors, can be connected to the central milk collecting line.
  • the milk collecting unit is therefore an essential component of the milking cluster in a milking installation.
  • the milking cluster has a dual function. Firstly, it has to suck the milk out of the teat and secondly it has to be transported to the milk collecting line connecting the milking cluster to a central milk collecting container.
  • the milk is sucked off rhythmically and intermittently.
  • a milking device with a teat rubber, which is arranged in the interior of the milking cup and which divides the interior of the milking cup into two areas in order to form a so-called two-room milking cup.
  • a vacuum or a suitable negative pressure is applied to the inside of the teat rubber, in which the teat lies and which represents one of the two areas, so that the milk is sucked out of the teat.
  • the second area is designed as a vacuum-tight cavity, which is alternately acted upon by atmospheric pressure and vacuum.
  • This vacuum-tight cavity of the teat cup between the teat rubber and the teat cup sleeve is called the pulse space.
  • the teat rubber performs a rhythmically pulsating movement, in which the teat rubber folds in or collapses when atmospheric pressure prevails in the pulse space, and expands again through its own elasticity when in the pulse Vacuum prevails.
  • the teatcup liner collapses the milk flow from the teat is interrupted despite the vacuum remaining on the teat and at the same time a massaging stimulus is exerted on the teat, so that blood build-up in the teat tissue is largely avoided.
  • the milk plug present when the teatcup liner collapses below the fold-in area then flows off to the milk collecting unit, the speed of the milk plug running off being additionally increased by folding in the teatcup liner.
  • a vacuum which is more reduced to the normal operating negative pressure occurs above the milk plug, so that a part of the milk plug can be accelerated towards the tip of the teat again when the teat rubber is subsequently deployed due to this pressure difference.
  • the milk does not flow away calmly and uniformly, but in plugs that swing back and forth.
  • the flow behavior in the milking cluster influences the development and spread of udder diseases.
  • the reason for this is often a rinsing of the teat tips with milk that is sucked back out of the milk collecting unit in each pulse cycle due to the previously described uncontrolled vacuum conditions.
  • This reflux allows bacteria from subclinically affected udder quarters to be carried away via the milk lines leading to the milk collecting unit.
  • an attempt is made to control the vacuum conditions on the teat and in the milk collection unit in such a way that the teat is not washed around. Since the milk flows or milk plugs of the individual udder quarters are brought together in the milk collecting unit, the special design of the milk collecting unit has a decisive influence on the vacuum and pulsation conditions at the teat.
  • the four milking cups are mainly operated with the so-called alternating pulsation, i.e. two cups are in the suction phase, ie the teat rubber is unfolded and the milk can drain, while the other two cups are in the relief phase, ie the teat rubber folded and the Milk flow is interrupted.
  • this operating mode ensures a more reliable hold of the teat cups on the teats, since only two teats are suctioned off while the folded teat rubbers on the other two teats ensure better adhesion due to the additional friction, and on the other hand an improved massage effect due to the alternating cycle Pendulum movement of the milking cluster.
  • a constant pressure difference between the milk collecting unit and the milk line is necessary in order to be able to pump the milk coming into the milk collecting unit further to a milk collecting container or storage container via a corresponding milk line.
  • This pressure difference is achieved through an air inlet in the milk collection unit.
  • a large volume of air in the milk collecting unit and a large air inlet are therefore desirable.
  • this measure reduces the vacuum on the teat, which results in a lower suction power and a reduced adhesion of the teat rubber.
  • an increase in the air volume causes an increase in the milk collection unit.
  • this is only possible to a limited extent, since the milk collecting unit is arranged below the teat cup and there is only a limited amount of space available.
  • a large volume of air in the milk collecting unit buffers pressure differences between individual milking cups, but cannot prevent changing ones Pressure differences arise between the air volume in the milk collecting unit and a single milking cup, so that aerosol droplets from the milk collecting unit enter the milking cup and thus cause a risk of infection for individual udder quarters.
  • the milk droplets in these aerosols can reach speeds of up to 12 m / sec. accept, and thereby further increase the risk of infection.
  • DE 199 83 196 shows in FIG. 2 the cross section of a milk collection piece with at least two milk inlets and a milk outlet, which can be closed by hand using a ball valve.
  • the problem of the backflow of milk is attempted to be solved by changing the pulse ratio.
  • the utility model G 85 16 004 describes a milk collector in the form of a closed container with an outlet and four inlet nipples, for the entry of milk from an associated teat cup.
  • the aim of this disclosure is to prevent the milk from flowing back into the teat cup and from standing still in the milk collector.
  • the utility model shows a shape of a milk collecting container in such a way that a spiral flow occurs within the container.
  • EP 50094 describes a milk collector with four inlets and one outlet, the outlet sucking the milk up out of the cavity through a pipe.
  • a valve which is controlled in the pulsation cycle, interrupts the suction in the relief phase.
  • US 5988105, US 6006695 and US 6058880 describe a milk collecting unit with four inlets and one outlet, the outlet sucking the milk from the floor via a tube inside the cavity.
  • a manually operated shut-off valve on the suction opening interrupts the suction of the milk when it is operated.
  • the object is achieved by a milk collection unit of the type mentioned at the outset, which is characterized in that the milk collection unit is designed such that the outlet opening is arranged at the lowest point of the milk collection unit during milking, with the outlet opening being located an expansion of the cavity follows.
  • the expansion of the cavity can be separated from the cavity via a closure.
  • the closure can be used to separate the vacuum from the milking cluster. This allows the vacuum in the central milk manifold to be maintained, since milking equipment that is not attached to an udder and that is not separated from the vacuum reduces the vacuum performance and thus the milking process in other animals that are milked using the same vacuum line , impaired.
  • the inlet openings of the milk collecting unit are shielded from one another by partition walls.
  • the dividing walls lead to flow conditions that almost prevent the milk from tiling from one milking cup to another. This allows the milk to flow out of the milk collection unit more quickly.
  • a transmission path through aerosols is also significantly restricted or even completely interrupted, since the aerosol mist is restricted to the area around the respective inlets shielded by the partition walls.
  • the partition walls have a recess which can accommodate a closure so that the partition walls can be used as a guide for an actuating element of the closure.
  • this embodiment enables the closure to be actuated with only one finger.
  • an air inlet is assigned to each inlet opening.
  • the drainage of the milk is not influenced by the other supply lines or at least strongly decoupled and the pumping effects on the teats are better decoupled from one another.
  • the object is achieved by a milk collecting unit of the type mentioned at the outset, which is characterized in that the milk collecting unit is designed in such a way that the inlet openings are shielded from one another by partition walls, the partition walls having a recess for receiving a closure ,
  • the milk collecting unit is designed in such a way that the inlet openings are shielded from one another by partition walls, the partition walls having a recess for receiving a closure ,
  • a section of the partitions, which are exposed through the cutout serves as a guide for the closure for the outlet, so that the closure can be operated with a finger, since the guide prevents the valve from jamming and therefore not can be brought into the correct open state if the closure is operated from the outside with one hand.
  • this embodiment enables the closure to be actuated with only one finger.
  • the object is achieved by a milk collecting unit of the type mentioned at the outset, which is characterized in that the milk collecting unit is designed in such a way that the inlet openings are shielded from one another by detachable partition walls.
  • the object is achieved by a milk collecting unit of the type mentioned at the outset, which is characterized in that the milk collecting unit is designed such that an air inlet is assigned to each inlet opening.
  • a milk collecting unit is thus obtained in which the milk flow is essentially not influenced by the other feed lines and in which the pumping effects on the individual teats are more decoupled from one another.
  • the expansion of the cavity is arranged so that it extends downwards during milking.
  • the closure can be actuated from the outside.
  • the closure can be operated by hand when the milking cluster is put on.
  • the closure has a spherical section, as a result of which the edges of the outlet opening can be sealed airtight.
  • the closure is connected to at least one actuating element which is guided outwards through the wall of the cavity.
  • the closure can be actuated from the outside by hand or by an electrical or mechanical device.
  • the milk collecting unit is designed such that the air inlet is arranged above the inlet opening during milking.
  • the air inlet is arranged adjacent to the inlet opening.
  • the milk collecting unit is constructed in two parts, such that the outlet during milking is arranged in the lower half and the inlets and air inlets in the upper half.
  • the partition walls comprise four segments which are held in the upper half by guide rails.
  • the four feed lines are decoupled from one another by dividing the cavity into four partial areas and the transfer of milk components and aerosol particles from one udder quarter to the other udder quarter is significantly reduced.
  • the actuating element of the closure is designed as a guide rail which is attached to the side of the closure, which is guided by the guide and which extends downwards during milking through an opening through a wall of the cavity.
  • the advantage is that when the teat cup is put on with one hand, the milk collection unit can be held with the other hand and at the same time the ball valve can be kept open with one hand.
  • a replaceable air inlet is arranged at each milk inlet, which comprises a pre-sieve with several holes and a perforated disc with at least one hole.
  • the air inlet is therefore easier to clean and less sensitive to dirt. Furthermore, an advantageous air flow is achieved such that the milk mixes optimally with the air.
  • the holes of the prescreen each have a diameter of less than approximately 0.5 mm and the hole of the perforated disc has a diameter of more than approximately 0.1 mm. This makes it particularly advantageous to achieve dirt resistance and the desired flow behavior.
  • the two halves have a marking or a locking mechanism, so that the two halves can always be oriented in the same way relative to one another in the closed state, such that the partition wall can be oriented to the lateral guide rail of the closure.
  • the partition can serve as a guide and the reliability during assembly and operation is improved.
  • the closure can be controlled electrically or pneumatically.
  • At least one air inlet can be closed, the closable air inlet being electrically or pneumatically controllable.
  • the closure and at least one closable air inlet can be controlled in a synchronized manner.
  • the closure and / or at least one closable air inlet can be controlled via a pulse cycle of a vacuum system of a milking system.
  • the synchronous control of the closure and / or the closable air inlet can be achieved in a simple manner.
  • FIG. 1 shows a cross section of a side view of an embodiment of the milk collecting unit according to the invention
  • FIG. 2 shows a view from below into the upper half of a milk collecting unit according to the invention
  • FIG. 3 shows a cross section through the embodiment from FIG. 1, the cutting surface being rotated through 45 ° with respect to FIG. 1;
  • Fig. 4 shows a cross section through the embodiment of Fig. 1, wherein the cutting surface is rotated 90 ° with respect to Fig. 3.
  • FIG. 1 of a milk collecting unit 1 shows essential features of the present invention.
  • the illustration in FIG. 1 shows an orientation of the milk collecting unit, as is approximately maintained during milking. In operation, the actual orientation can deviate from the orientation shown in FIG. 1 in an angular range of approximately + 30 °, due to movements of the animal, due to the shape of the udder or similar influences. In the following, therefore, orientation information such as “above” or “below” relate to the orientation shown in FIG. 1.
  • a cavity 40 is formed by an upper part 20 and a lower part 30, which are screwed together by means of a thread 9 and a sealing ring 8.
  • two of four milk inlets 7 are above the milk Hose lines 2 of teat cups (not shown) in the milk collecting unit 1 can be seen, visible.
  • a milk outlet 3 is arranged so that in the operating position it lies at the lowest point of the milk collecting unit 1.
  • a closure 13 is arranged in the cavity 40 at the outlet opening 3.
  • the closure 13 has a spherical section on the side facing the outlet 3 (shown as a circular section in the sectional view).
  • An extension 41 of the cavity 40 adjoins the outlet opening 3.
  • the milk inlets 7 are shielded from one another by partitions 10 which divide the cavity 40 of the milk collecting unit 1 into four subspaces. Above the milk inlets 7 there are air inlets 12 with air channels 14 and interchangeable inserts, with a pre-sieve 5, a sealing ring 4 and a metal disk with a hole 6.
  • FIG. 2 additionally shows guide rails 15 for the partitions 10, with which the partitions are held in the upper part of the milk collecting unit.
  • the partitions 10 are designed as intersecting surfaces.
  • Fig. 3 shows how the extension 41 of the cavity 40 merges into an obliquely downward pipe, whereby the drainage of the milk (indicated by arrow 18) is improved, since no milk remains in the cavity and thus little kinetic energy of the flowing milk is destroyed, that is, the milk that is accelerated on the way from the inlet to the outlet is hardly slowed down by obstacles.
  • the section shown in FIG. 4 shows the partitions 10 with a recess, so that a lower section 21 is formed which has an edge which can be used as a guide 22 for an actuating element 16 of the closure 13.
  • the actuating element 16 of the closure 13 is designed as a guide rail 16 (same reference number as the actuating element, since in this embodiment the same element is meant), which is attached laterally to the closure 13, which is guided by the guide 22, and which extends downward through an opening extends outward through a wall of cavity 40.
  • the recess is shaped so that it closes the closure 13 can accommodate and that the lower portion 21 of the partition walls 10 can be used as a guide 22 for the actuating element of the closure 13.
  • the passage of the side rail 16 through the housing of the milk collecting unit 1 is sealed by a sealing device 11.
  • the milk collecting unit 1 When the teat cups are attached to the teats, the milk collecting unit 1 is held with one hand, the ball valve 13 being held open with a finger via the lateral guide rail 16. After the milking cluster has been attached, the operating vacuum builds up in the cavity 40 of the milk collecting unit 1 and because of the small pressure differences between the cavity 40 of the milk collecting unit 1 and the enlargement 41 of the cavity 40, the closure 13 remains due to the frictional resistance between the actuating element 16 and the seal 11 open. The closure 13 closes when the pressure difference between the cavity 40 of the milk collecting unit 1 and the expansion 41 of the cavity 40 exceeds a predetermined value.
  • milk flows into the milk collecting unit 1 and impacts there, including the aerosol droplets formed, on the partition wall 10 and can then flow down freely into the extension 41 of the cavity 40, the air inlet 12 for a pressure difference between the cavity 40 Milk collecting unit 1 and the milk outlet line (not shown), which, however, is not large enough to close the closure 13, but ensures an accelerated process, as was explained at the beginning.
  • the closure can be controlled externally pneumatically or electrically. This can be achieved, for example, by means of a motor, a magnet or a pneumatic actuation device that is actuated tion element of the closure are connected.
  • This embodiment can be applied to a milk collecting unit which is divided into two parts, so that a common cavity is available for every two milking cups which are operated in synchronism. In this case it is possible to close the closure in the relief phase. This relieves the teat tips in the relief phase and the milking process is gentler and more efficient.
  • the air inlet can be controlled externally pneumatically or electrically.
  • the air inlet can be opened or closed, for example, by a flap that is opened or closed by a motor, a magnet or a pneumatic actuation device. This allows the air intake to close in the suction phase. This makes the suction process more efficient because the vacuum is more constant on the teat during the suction process.
  • controllable closure or at least one controllable air inlet can be applied to a two-part milk collecting unit according to a further embodiment, not shown.
  • closure and the closable air inlet are controlled synchronously. This allows the two advantages mentioned above to be combined and the pressure conditions in the milk collection unit and in the milking cups can be controlled even better and the milking efficiency can be increased again.
  • the closure and / or the closable air inlet can be controlled and synchronized via the pulse cycle of the vacuum system of a milking system.
  • a closure that can be controlled via a pulse cycle is formed by the side rail opening into a cylinder in the form of a piston.
  • the cylinder is now supplied with vacuum or atmospheric pressure at the same pulse rate as the teat cup, so that the piston is pushed back and forth and the valve opens or closes.
  • Another embodiment not shown, provides two separate cavities with two separate ball valves, each for two milk supply lines in common.
  • the two halves of the milk collecting unit have a marking or a locking mechanism, so that the two halves are always oriented or can be oriented in the closed state in the same way and thus the partition wall is always oriented or oriented towards the side guide rail of the closure is orientable that the partition can serve as a guide.

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  • Life Sciences & Earth Sciences (AREA)
  • Animal Husbandry (AREA)
  • Environmental Sciences (AREA)
  • External Artificial Organs (AREA)

Abstract

L'invention concerne une unité de collecte de lait comprenant une ouverture de déversement, plusieurs ouvertures d'admission ainsi qu'un espace creux pouvant être en communication fluidique avec plusieurs pots de lait, par lesdites ouvertures d'admission et par l'intermédiaire de conduites de lait, et pouvant être en communication fluidique avec une conduite de collecte de lait, par l'ouverture de déversement. Cette unité de collecte de lait est caractérisée en ce qu'elle est conçue : de sorte que, lors de la traite, l'ouverture de déversement soit située au point le plus bas de ladite unité, l'espace creux comportant une extension contiguë à l'ouverture de déversement ; de sorte que les ouvertures d'admission soient protégées les unes des autres par des parois séparatrices présentant un évidement ; de sorte que les ouvertures d'admission soient protégées les unes des autres par des parois séparatrices amovibles ; et de sorte qu'à chaque ouverture d'admission soit associée une prise d'air.
PCT/EP2002/007074 2001-07-03 2002-06-26 Unite de collecte de lait WO2003003817A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20220833U DE20220833U1 (de) 2001-07-03 2002-06-26 Milchsammeleinheit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10132132.5 2001-07-03
DE2001132132 DE10132132A1 (de) 2001-07-03 2001-07-03 Milchsammeleinheit

Publications (2)

Publication Number Publication Date
WO2003003817A2 true WO2003003817A2 (fr) 2003-01-16
WO2003003817A3 WO2003003817A3 (fr) 2003-10-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/007074 WO2003003817A2 (fr) 2001-07-03 2002-06-26 Unite de collecte de lait

Country Status (2)

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DE (2) DE10132132A1 (fr)
WO (1) WO2003003817A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009077607A1 (fr) * 2007-12-19 2009-06-25 Gea Westfaliasurge Gmbh Eléments de collecte de lait avec chambres pouvant être fermées

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1646277A2 (fr) * 2003-06-12 2006-04-19 Avon Polymer Products Limited Systemes de traitement de liquides
EP2179644B1 (fr) 2008-10-21 2011-06-29 Interpuls S.P.A. Dispositif collecteur pour installations de traite

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253419A (en) 1979-05-24 1981-03-03 The De Laval Separator Company Milk claw
EP0050094A1 (fr) 1980-09-12 1982-04-21 Didier Blanc Faisceau de traite mécanique
DE8516004U1 (de) 1984-06-01 1985-09-26 DEC International, Inc., Madison, Wis. Milchsammler
US5988105A (en) 1996-02-02 1999-11-23 Alfa Laval Agri Ab Claw for a milking machine
US6006695A (en) 1996-02-05 1999-12-28 Alfa Laval Agri Ab Claw for a milking machine
US6058880A (en) 1996-02-05 2000-05-09 Alfa Laval Agri Ab Claw for a milking machine
DE19983196B4 (de) 1998-05-04 2010-04-29 Delaval Holding Ab Verfahren und Vorrichtung zum Melken eines Tiers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1160900A (en) * 1966-09-13 1969-08-06 Gascoignes Res & Dev Ltd Improvements in or relating to Teat Cups for Milking Equipment
NL8001337A (nl) * 1980-03-06 1981-10-01 Mae Lois Moore Mechanische melkinrichting.
US4807566A (en) * 1987-10-05 1989-02-28 Alfa-Laval, Inc. Milk claw

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253419A (en) 1979-05-24 1981-03-03 The De Laval Separator Company Milk claw
EP0050094A1 (fr) 1980-09-12 1982-04-21 Didier Blanc Faisceau de traite mécanique
DE8516004U1 (de) 1984-06-01 1985-09-26 DEC International, Inc., Madison, Wis. Milchsammler
US5988105A (en) 1996-02-02 1999-11-23 Alfa Laval Agri Ab Claw for a milking machine
US6006695A (en) 1996-02-05 1999-12-28 Alfa Laval Agri Ab Claw for a milking machine
US6058880A (en) 1996-02-05 2000-05-09 Alfa Laval Agri Ab Claw for a milking machine
DE19983196B4 (de) 1998-05-04 2010-04-29 Delaval Holding Ab Verfahren und Vorrichtung zum Melken eines Tiers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009077607A1 (fr) * 2007-12-19 2009-06-25 Gea Westfaliasurge Gmbh Eléments de collecte de lait avec chambres pouvant être fermées
CN101932230B (zh) * 2007-12-19 2013-04-17 Gea农业技术有限公司 具有可封闭腔室的奶采集件
US8438992B2 (en) 2007-12-19 2013-05-14 Gea Farm Technologies Gmbh Milk collecting pieces with closable chambers

Also Published As

Publication number Publication date
WO2003003817A3 (fr) 2003-10-02
DE10132132A1 (de) 2003-01-16
DE20220833U1 (de) 2004-04-15

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