CS200477B2 - Equipment for automatic desinfection of udders of milch cow after milking - Google Patents

Description

(54) Equipment for automatic disinfection of teats and udder of dairy cow after milking

The invention relates to a device for the automatic disinfection of teats and udders of a dairy cow after milking.

A significant number of breeders employ a teat dipping method, which consists in bathing each teat of the udder in a bucket containing an iodine solution, such as a solution of 5 per mille of pure iodine, after milking.

This method is only manual and employs the worker for a relatively long time.

Nevertheless, it is an important action since it is a very powerful means of combating germs that can enter the teat canals and cause udder inflammation in dairy cows (mastitis).

The purpose of the invention is to provide a device for the application of a disinfectant solution which does not require manual intervention by the operator.

According to the invention, this object is achieved by providing a device characterized in that it is equipped with a passageway for dairy cows in which both animal position detectors and disinfectant sprayers are located, the detectors cooperating with sprayers so that sprayers are switched on and off animal.

In a practical embodiment of the device according to the invention, the detectors may be photoelectric cells, infrared rays, radar, microswitches or any other type of detector.

When an electronic device is used, the device is arranged to initiate spraying and / or spraying. each atomiser was actuated depending on the signals emitted by the detectors. The accompanying drawing shows an example of an embodiment of the device according to the invention which operates on an electronic principle, wherein FIG. 1 is an overall view of the device and FIG. FIG. 3 is an electronic diagram for the apparatus of FIGS. 1 and 2, and FIG. 4 is a corresponding state diagram.

d ₂ , d ₃ ... scan the position of the animal, using four detectors in the illustrated case. In addition, disinfectant sprayers Pp, Pg ... £ _n are disposed in the passageway, in which case three sprayers are provided, which are connected to a pipe 2 running in the direction of the longitudinal axis of the passageway.

The atomizers P1, P1, P1 are made of stainless steel.

In the illustrated embodiment of the automatic disinfection detectors D ₁ ... photocells that are illuminated by lamps 8, but it is also possible to use infrared, radar, micro or any other detector.

A disinfectant solution, such as iodine solution, is contained in the reservoir J and the pump 4 delivers the disinfectant solution to the manifold 2 and to the bypass manifold 2.

Passageway, passageway J. is a passageway, which dairy cow after milking.

Between the atomizers Pp Pg, P ^ and the manifold 2 there are arranged valves Vp Vg,

V.

—N

Atomizers Pp Pg, P _n are actuated detectors Dg Dp, D?, D _m, so that each of the spray Pp Pg, P ^ is actuated only when the animal's udder is located above it.

In the example shown, the electronic device ensures the atomization and actuation of each atomizer Pp Pg, £ _n depending on the signals emitted by the detectors D "-2" -3 ".

On the bypass line γ there is a valve 6 which is normally open but which closes when one of the valves Vp Vg, V _fi is open, and these valves Vp V ₉ , 7 'allow the atomizers Pp Pg to be supplied with disinfectant solution according to position of the dairy cow when leaving.

Once the cow's body covered with a number of detectors Dp Dg, D ^, D _m enters the electronic device is automatically activated.

As soon as the rear upper part of the dairy cow exposes the detector D ₁ , the valve V is opened, the valve 6 is closed.

If the dairy cow stops moving, the timer will stop spraying after a period of time that is optional.

If the cow continues to move, it will reveal the Dg detector. At this point the valve Vg is opened and the valve Vp is closed. If necessary, the timer is started.

As soon as the animal exposes the detector, valve V _fi is opened and valve Vg is closed. The timer works when the dairy cow stops for longer than the set time.

Finally, when the dairy cow covers the last detector, i.e. in the illustrated case, the detector 2 ®, the valve V _n is closed and the device is brought to rest until the next dairy cow covers the group of detectors Dp Dg, D ^, D ^ again.

Figure 3-shows an electronic diagram that can be used in the case of Figures 1 and 2, if m = 4 θ n = 3.

Pulse converters, such as bistable circuits B, Bg, B ^, or flip-flops, are provided downstream of the detectors Dp Dg, Dj, IP, which are connected to terminals E, E ₂ , Ej, E _m , to suitably energize the logic block. 2 through its input terminals a. ', Eg, ^E o>

The signals generated at the output terminals S1 ', Sg, S _{n of the} logic block 2 are amplified by the power amplifiers DR, DRg. DR and come to the input terminals Sp Sg, S _{n of the} atomizers P, Pg, P &.

The function of logic block 2 corresponds to the values in the following table for four inputs by three outputs.

^E í Eg in * 3 E m ^s í ^S 2 ^S ú 1 1 1 1 0 0 0 0 1 1 1 0 0 0 0 0 1 1 0 0 0 0 0 0 ? 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 1 0 0 0 and 0 1 1 1 0 0 0 1 1 1 1 1 0 0 0 This example is need to be understood that u terminals 2 means Position 1 illuminated

The position O is not illuminated and that at terminals 3 ', position 2 means operation (ON) and position 0 means stop (OFF).

To avoid unused sprayers Pp Pg, P _n , a timing device is commonly used, as shown in the diagram in Figure 4. The timing devices only operate when the cow is not moving at all or is moving very slowly when passing Corridor 2 · The state diagram in Fig. 4 corresponds to the case where m = 4, n = 3, as shown in Fig. 1.

The spraying times determined by the timing devices are designated sequentially tt1, tt2, ttn. If an animal is detected detectors Dg Dp, D _7, D ^ for the times t1, t2, tn, and they are smaller than TT1, TT, 2, TTN, nebulizers operate P, PG, £ _n without the intervention of the timing device. If, on the other hand, any of the times 22, t2. tn is greater than the respective timing time tt. 1, tt2, ttn, the timing device stops the respective atomizer Pp Pg, 1 '. A global timing time is also provided such that if the animal's presence time sensed by the detectors is greater than the selected total timing time Pg, or P1 only.

SUBJECT OF THE INVENTION

Claims (7)

SUBJECT OF THE INVENTION Apparatus for the automatic disinfection of teats and udders of a dairy cow after milking, equipped with a passageway (1) for dairy cows containing both animal position detectors (Dj-Dfl) and sprayers (P, -P _n ) of disinfectant, cooperate with sprayers (P, Pg, P _n ) for the application of disinfectant liquid to the udder of dairy cows,. characterized in that the apparatus is provided with a plurality of detectors (D ^-D _n ) and a plurality of atomizers (Pj-P _n ), each spray element having a respective valve (V, -V _n ) which is opened by the detector via an electronic circuit so that the atomizers (P, Pg-P _n ) are supplied sequentially, depending on the position of the animal as it passes through the corridor (1). 2. Apparatus according to claim 1, characterized in that the detectors (D, -D) are infrared photoelectric cells, microswitches or radar forming elements. Device according to claim 1, characterized in that the electronic circuit comprises a logic block (7) which serves to establish a connection between the amplifiers actuating the spray elements (Pj-P _n ) ^and the bistable elements controlled by the detectors (D). D _ffl ). 4. Apparatus according to claims 1 to 3, characterized in that the electronic circuit closes the individual spray element (P ₁ -P _n) depending on the signals emitted by the individual detectors _(Dl -D _m). Device according to claim 1, characterized in that it comprises a tank (3) for disinfectant solution, a pump (4) for transporting the solution to the distribution line (2) and to the bypass line (5), a valve (6) is installed, normally open but closable once one of the sprayer valves is open. Device according to one of Claims 1 to 5, characterized in that it is provided with timing elements which serve to close the spray valves (Ρ, -Ρ ^) as soon as the movement of the animal in the passageway (1) is zero or very small. Device according to claim 3, characterized in that the signals generated at the output terminals of the logioc circuit are amplified by amplifiers (DR ₁ -DR _n ) for actuating the atomizers < ^Ρ Γ ^Ρ η> · 3 sheets of drawings