UA44479C2 - Milking process control device - Google Patents

Abstract

A milking control device consists of a milk gauge and an inlet and an outlet fittings. The milk gauge has a chamber, the upper part of which looks like a cut cone with upward expansion and a part of outlet fitting is connected to it from below, on which are located a disk with a valve, which has lateral apertures for milk passage, when the valve is in the upper position, in which it forcedly rises by the blocking at the beginning of milking and is kept in such position by milk flow and an upper aperture for reduction of vacuum to a level sufficient only for holding the teet cups on the udder, at the lower position of the valve, to which the valve independently falls after the termination of milk delivery.

Description

The invention relates to agriculture.

To prevent mastitis during machine milking of cows in our country and abroad, automatic devices for disconnecting milking cups are offered. Most switches use a float.

Float devices for disconnecting milking cups are analogs of the invention that we offer. Many analogues are mentioned in scientific and technical literature (see the book "Milk Machines" by V.F. Korolev, 1962), USSR copyright certificates Me1061771, 1982, Me792622, 1972, 1428316, 1986. US patent 3786782, 1974 and others All these devices showed unreliable operational capability of the structure.

For the prototype of the invention developed by us, we took the "Device for controlling the milking process" (USSR copyright Mo1428316, 1986. The device consists of a milk sensor with an outlet pipe located in the lower part, a float chamber with a float, which has a needle at the bottom that covers the calibrated hole, and above the float there is a device with valves connected to it, which is connected by hoses to the collector and pulsator of the milking machine, the inlet pipe, which through the valve is connected to the pipe connected to the milk pipe. This device is relatively complex and cannot work with devices with pulse collectors (for example, DA-50).

The purpose of the invention is to develop a device that is reliable in operation, simple in design and capable of working with milking machines in which the pulsator and the collector are combined into one unit. The device should ensure that the high vacuum is turned off at the end of milking, which acts on the teats and at the same time keeps the milking cups from falling.

This goal is achieved by the fact that there is no float in the chamber of the device, and instead a disc with a valve is installed, which at the beginning of milking is raised by the operator with the help of a blocker, and then is held in this state by the flow of milk, passing milk through the milk holes, and when the milk stops flowing into the device, the disk with the valve is lowered and the teat chambers are connected to the vacuum through a small hole in the center of the valve, so the vacuum in the teat chambers of the milking cups is reduced to the level that is only necessary to keep the milking cups on the teats. The blocker is a straight rod, one end of which rests against the valve (when milking into the milk duct) or

U-shaped rod (when milking in the milking bucket).

The anti-mastitis effect of the device is achieved only with milking machines that provide simultaneous milking of the front and rear parts of the udder.

The invention is explained by drawings, where Fig. 1 shows (in section) a device with a raised valve installed on the lid of a milking bucket, and Fig. 2 shows this device with a lowered valve, Fig. C shows a diagram of a milking machine with a device for controlling the milking process during milking in the milk duct.

The device for controlling the milking process (Fig. 1) consists of a housing 1 with an inlet pipe 2, the housing is closed from above with a lid 3. The housing 1 and the lid C form a chamber for milk. In the middle of the housing 1, a disk 4 with a valve 5 is installed. In the valve 5, in the center, there is a hole b for creating a weak vacuum and side holes 7 for the flow of milk. In the lower part of the housing 1 there is an outlet nozzle 8, with the help of its lower part, the device is fixed on the lid of the milking bucket 9, and the upper part acts as a guide sleeve for the valve 5. The upper part of the housing 1 within the range of movement of the disk 4 with the valve is a cone with an extension to top The disk with the valve freely moves along the upper part of the nozzle 8 to the bottom and to the top so that in the upper position the valve 5 can knock against the cover 3, giving signals about milking. For a different tonality or character of the sound of signals, cover C can be made of different thicknesses or of different materials. In the lower position, the speed of the disc 4 is reduced due to the damper coupling 10, which forms a hydraulic chamber 11, from which, when the valve 5 is lowered, milk is squeezed out, in order to stabilize the vacuum in the milking cup chambers. For forced lifting of the valve 5, which is necessary for the start of milking, the device is equipped with a blocker 12, the leash of which is sealed in the lid of the milking bucket 9 with an elastic coupling 13. When milking into the milking bucket, the blocker 12 has a U-shaped shape, and when milking into the milk duct (fig. 3) the blocker 12 is straight and its leash is sealed in the outlet milk pipe 8. When milking into the milk pipe, the control device is also a collector (see Fig. 3), and the outlet pipe 8 is bent at an angle, as in a conventional collector and milk hose 14 is connected to the milk duct 15. On the lid of the device there is a nozzle 16 for connecting it to the pulsator 17.

The device for controlling the milking process works as follows. The milker lifts the valve 5 with the blocker 12 and connects the milking cups to the teats. The necessary vacuum is created in the chambers of the milking cups and the milking process begins, milk enters the chamber of the device through the inlet pipe 2, the gap between the disk 4 and the walls of the body 1, the side holes 7 in the valve and leaves through the outlet pipe. Then the milkmaid, making sure that the milking has started normally, lowers the blocker 12 to the lower position. Disk 4 with valve 5 is held by the flow of milk, providing the necessary vacuum until the end of milk delivery.

When milking in the milk hose of the milking machine, the milk is accompanied by air bubbles, which causes the movement of the disk 4 with the valve 5 up and down, touching the lid C in the upper position, an intermittent sound is heard, which signals normal milk supply.

At the end of milking, the flow of milk stops and the disk 4 with the valve 5 is lowered and the side openings 7 are closed. The sound disappears, indicating the end of milk production. Air from the chambers of the milking cups is sucked through a small hole b in valve 5, the pulse collector stops working due to insufficient vacuum level, the amount of air entering through the pulse collector from the atmosphere decreases when the valve 5 of the device is closed, the vacuum is such that its level is sufficient only to hold the milking cups glasses

High vacuum does not act on teats at the end of milk production.

The positive effect is the elimination of dry milking, which prevents mastitis in animals and preserves their milk productivity.

The sound alarm gives the milkmaid additional information about the milk yield and will help to more easily determine in which device the shutdown occurred when milking several cows at the same time.

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Claims (2)

1. A device for controlling the milking process, consisting of a milk sensor, inlet and outlet nozzles, which differs in that the milk sensor has a chamber, the upper part of which has the form of a truncated cone with an extension to the top, and a part of the outlet nozzle enters it from below, on which there is a disc with a valve having lateral openings for the passage of milk when the valve is in the upper position, to which it is forced up by the blocker at the beginning of milking and is held in this position by the flow of milk, and an upper opening for reducing the vacuum to a level sufficient only to hold the milkers glasses on the udder when the valve is in the lower position, into which the valve automatically lowers after the end of milk delivery. 2. The device according to claim 1, which differs in that the blocker has the form of a straight or bent rod, depending on the milking in the milk duct or milking bucket.