SU1741678A1 - Method and device for control of process of machine milking - Google Patents

Abstract

Usage: machine milking of cows. Invention: during the milking process, each part of the udder is biostimulated from the moment of milk yield to the moment of milk recovery, and the biostimulation is carried out by pulsed current with increasing pulse amplitude in each stimulation cycle. 2 sp.f-ly, 1 ill.

Description

The invention relates to agriculture, in particular to animal husbandry and veterinary medicine, and can be used in machine milking of cows.

There is a method of machine milking of animals, including a pulsating vacuum effect on the teats of the udder through milking cups, monitoring the presence of milk flow, delaying the shut-off time of the teat cups after the final cessation of the milk flow.

The disadvantage of this method is the simultaneous detachment of the teat cups after the complete cessation of milk yield by one of the udder fragments, which does not ensure complete delivery in the case of uneven milk yield for different udder segments.

There is a known method of milking cows in which the udder is massaged after the milk has been dispensed from the main amount of milk and the milk is released after that, and the milk is resumed. Massage can directly affect the contractile elements of the udder; in addition, a mechanism for stimulating the milk reflex of a neurohumoral character is possible.

However, the effectiveness of mechanical massage is insufficient, some animals have little response to the effects

There is also known a method for milking animals, in which, in the case of inhibition of the lactation reflex, the milking machine is introduced into the mode of stimulation of the lactation reflex, which consists in mechanical massage of the udder teats with the nipple gum.

The disadvantage of this method is the low efficiency of the mechanical massage due to the limited zone of mechanical action (the nipple rubber nipple contact zone).

The aim of the invention is to provide more complete cows when machine milked.

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This goal is achieved by the fact that with the method of controlling machine milking of animals, consisting in a pulsating vacuum effect on the teats of the udder through milking cups, 1 measuring milk yield separately from each of the udder fractions, registering a decrease in milk yield and stopping it after milking has finished, reflex biostimulation modular output is performed by an electromassage with DC pulses with a voltage of 3-12 V with a frequency equal to the frequency of the pulsating vacuum action and a duration of pulses equal to the duration of the dilution pulses, the current strength being varied from zero to the value at which milk flow resumes, but not more than 120 µA.

The drawing shows a schematic diagram of an animal milking control device.

A milking machine containing a vacuum manifold 1, connected by pipes 2 with inter-wall chambers of each teat cup 3, is equipped with milk flow sensors 4 for each udder portion located on milk ducts 5. connecting milking cups of milking cups 3 with milking bucket 6, or in the bucket In the latter version (shown in the drawing), the milking bucket should be divided into four compartments,

On each pipe 2, an actuator 7 is installed, made in the form of a solenoid valve. The milk flow sensor 4 communicates with the actuator 7 by means of an electronic unit made in the form of a differentiator 8, a trigger 9 with a counting input 9, a delay element 10, a switch 11 and a transducer 12. The device is equipped with stimulators 13 (for example, electromassagers) connected to electrodes 14. Biostimulators 13 are connected to the inputs of differentiators 8, the outputs of which are connected to triggers 9 GOVERNMENTAL inputs and the delay devices 10, and the outputs of flip-flops 9 and 10 delay units are connected to inputs of switches 11, the outputs of which are connected to solenoid valves 7 via inverters 12.

The method is carried out as follows.

During milking, the pulsating vacuum flows from the collector 1 through pipelines 2 through the open controlled electromagnetic valves 7 into the inter-wall chambers of the milking cups 3. At the same time, the vacuum flows through the milk line 5 into the spouting chamber of the milking cup 3 and the milking is performed according to the cycle provided by the collector 1. Each sensor 4 detects the presence of milk from

the udder share corresponding to it, an electric signal proportional to the milk flow, is supplied from sensor 4 to the input of differentiator 8.

After the first cessation of milk flow (or a sharp decrease in consumption) from any part of the udder at the output of the differentiator 8, the electrical signal from sensor 4 changes sign, which corresponds to the input of the trigger 9 1, which is memorized, and at the same time the changed signal (1) enters the device 10 delay, which is included and after a set time (if milk is not resumed) gives

signal 1 to the input of converter 12, which, converting and amplifying the signal, turns off the solenoid valve, stopping further milking and thus preventing the possibility of injury to the udder.

The signal from sensor 4 about the termination or sharp decrease in milk yield from each udder lobe simultaneously with the input of the differentiator 8 also goes to a biostimulator 13 connected to the electrode 14 and mounted on the udder. The biostimulant turns on and performs udder massage, Biostimulation is performed by DC pulses with a voltage of 3–12 V, with a frequency equal to the frequency of the pulsating vacuum, and a pulse duration equal to the duration of the vacuum pulses. The amperage varies from zero gradually until the milk supply is resumed. After renewal

the supply of milk the supply of current pulses to the pump stops.

If during the period of delay, despite the biostimulation, the milk flow has not resumed, the solenoid valve 7

further milking is turned off and stopped.

After the milk supply is stopped again (or the flow rate is reduced again), the same nipple at the outlet of the differentiator 8 re-forms 1, which is passed by the trigger 9 to the converter 12. At the same time, the solenoid valve closes, stopping further milking. The device acts like each nipple separately, independently of each other.

The application of the proposed method and device for its implementation will allow for a more complete issuance and

reduce udder injury

Claims (1)

Claim 1. Method for controlling machine milking, including pulsating vacuum effect on udder nipples, measuring milk yield separately from each udder fraction, registering milk loss reduction, biostimulation of the milk response reflex before its resumption, and cessation of biostimulation after the end of milking, characterized by In order to increase the total yield and reduce injuries to the udder, biostimulation is carried out by pulses of a constant current with a frequency equal to the frequency of the vacuum action, and equal to the duration of the vacuum pulses, while the amplitude of the current pulses during exposure increases 2 A machine milking control device containing, for each fraction of the udder, a milk flow sensor which is connected to an appropriate actuator by means of an electronic unit including a delay element. that, in order to increase the overall yield and reduce injuries to the udder, it is equipped with a biostimulator associated with an electrode for installation on the udder, the electronic unit is made for each milk flow sensor in the form of a differentiator, a trigger with a counting input, a delay element, a switch and a converter, and Each actuator is designed as a controllable solenoid valve for installation in a pipeline that communicates an interstitial chamber of a teat cup with a manifold, while the input The differentiator is the corresponding input of the electronic unit and the output is connected to the input of the biostimulator and through a trigger with a counting input and a delay element to the corresponding inputs of the switch, the output of the latter is connected to the input of the converter whose output is connected to the corresponding control input of the controlled solenoid valve pipeline intercommunicating chamber teat cup with a collector. Editor M.Shmakova Compiled by V.Galchansky Tehred M.MorgentalKorrektor M.Kucher va // 12 13