JP4912177B2 - Cleaning method and cleaning mechanism for breast-feeding apparatus - Google Patents

Description

  The present invention relates to an effective cleaning method for a milk receiving apparatus for temporarily storing milk sucked from a milking unit in a pipeline milker.

  Conventionally, devices that come into direct contact with milk, such as a milking device (pump feeding tube, receiver jar, etc.) of a pipeline milker, must always be kept clean and prevent propagation of germs. Therefore, before and after the milking operation, the remaining milk is removed by flowing water, washing water such as acidic / alkaline washing liquid in a predetermined order through the milking line.

  The outline of a typical pipeline milker disclosed in Japanese Patent Application Laid-Open No. 9-56288 by the present applicant will be described. The pipeline milker is roughly a vacuum generating / adjusting device, a milking device unit, a milk receiving device unit, and a cleaning device. It is comprised from the unit, the cooling device, the vacuum supply piping which connects these, milk feeding piping, etc. Among these, the breast-feeding device unit is composed of a receiver jar (releaser), a breast feeding pump, a moisture chart wrap, an in-line filter, and a pipe connecting them. Each pipe has a large number of valve bodies, and these pumps and valve bodies are controlled by a control device (not shown).

  In the above-described pipeline milker, milking and washing operate in different modes. During milking, the receiver jar is supplied with a high vacuum pressure from a vacuum pump via a high vacuum pressure pipe and a trap in the milk receiving device unit, and milk in the milking unit flows in via the milk pipe. The discharge side of the breast feeding pump is connected to the breast feeding pipe, and the milk in the receiver jar is transferred to a bulk cooler that is a cooling device and stored in a cooled state.

  Next, the operation of the conventional pipeline milker during cleaning will be described with reference to FIGS. First, the milking unit is suspended from a large number of connection ports 110 provided at the branch portions of the milk pipe 102 passing above the cleaning tank 20, and the tip of each teat cup is immersed in the cleaning liquid in the cleaning tank 20. Then, the discharge side of the breast feeding pump 108 is connected to the breast feeding pipe 122 to drive the vacuum pump 103 and the breast feeding pump 108. Then, the cleaning liquid sucked up inside the milking unit flows into the receiver jar 107 through the milk feeding pipe 102. In the case of the circulation cleaning, the drain valve V1 on the discharge side of the breast feeding pump 108 is closed, and the cleaning liquid is returned to the washing tank 20 through the breast feeding pump 108, the in-line filter 124, and the breast feeding pipe 122 for a predetermined time. The operation ends after elapse of. In the case of the end of cleaning or flush cleaning, the drain valve V3 is opened, the returned water and cleaning liquid are discharged from the drain valve V3, and the operation ends when there is no water or cleaning liquid in the cleaning tank 20.

  In a normal washing procedure, milk components are first washed away by first rinsing with room temperature water or lukewarm water. Next, the dirt that is difficult to dissolve is removed by sequentially performing decomposition cleaning of fat by circulation cleaning with an alkaline cleaning liquid and removal of inorganic substances by acid. Finally, rinse with water or lukewarm water to wash away the cleaning solution.

In the conventional cleaning mechanism as shown in FIG. 3, a part of the milk receiving device unit is provided with a device for circulating dirt in the receiver jar 107 and the like by circulating a part of the cleaning liquid during the circulating cleaning. There is. FIG. 4 shows an example of such a conventional receiver jar cleaning device. The discharge side pipe of the breast feeding pump 108 is branched before the in-line filter 124 to provide a reflux pipe 125, which is provided upward in the receiver jar 107. Connected to the spray nozzle S2. And by the discharge pressure of the feeding pump at the time of circulating cleaning, the cleaning liquid is sprayed inside the receiver jar, especially around the trap connection pipe inlet, and flows down through the inner side surface, while the dirt inside the receiver jar 107 is removed. It was removed by washing.
JP-A-9-56288

  Usually, in the receiver jar after milking, foreign matter such as straw contained in the raw milk before filtration, raw milk that could not be collected by the filter, and fat separation occurred in the vicinity of the mark X in FIG. Bubbles are present. In the prior art, the residue remaining before washing is removed by the first rinsing, and the dirt in the receiver is circulated by spraying the cleaning liquid recirculated from the delivery pump discharge side from the upward spray nozzle provided on the receiver jar. Although it was removed during cleaning, there was a problem that the cleaning effect was hindered if a large amount of dirt remained during circulation cleaning. Further, the milk component foam easily adheres to the inner surface and upper part of the receiver jar and is difficult to remove with a cleaning solution. In addition, the milk component tends to become fixed dirt over time, so it has to be removed quickly.

  On the other hand, after washing, most of the dirt is discharged together with water by the last rinse, but in the case of natural drainage, the light oily part of the dirt and milk components are floating on the water surface, so the last rinse Even after washing, there was a problem that it was likely to stay on the inner surface of the receiver. These also become more difficult to remove as time passes.

  Therefore, an object of the present invention is to solve the above-described problems that cannot be solved only by spraying a cleaning liquid spray during circulation cleaning.

In the method for cleaning a breast feeding apparatus according to claim 1 , in a breast milk feeding apparatus of a pipeline milker equipped with an automatic cleaning apparatus, an upward spray nozzle connected to the discharge side of the breast feeding pump inside the receiver jar, A downward spray nozzle connected to the water supply is provided to clean the interior of the receiver jar by irrigating the cleaning liquid from the upward cleaning liquid spray nozzle during rinsing and circulating cleaning as well as the first rinsing or circulating cleaning. The above-mentioned problem is solved by a washing method for a breast-feeding device, characterized in that preliminary washing is carried out by spraying clean water from a downward spray nozzle before the washing .

In other words, the water spray nozzle is disposed on the upper portion of the receiver so as to face the bottom surface . Then, pressurized water is ejected before washing, and the effects of the first rinsing process and the circulation washing process are fully exhibited by removing bubbles and foreign matter inside the receiver jar and the inner surface of the pipe in advance.

The invention described in claim 2 is a milking device of a pipeline milker equipped with an automatic cleaning device , wherein the upward spray nozzle connected to the discharge side of the breast feeding pump and the water supply are connected to the inside of the receiver jar. A downward spray nozzle, which cleans the interior of the receiver jar by spraying cleaning liquid from the upward cleaning liquid spray nozzle during rinsing and circulating cleaning, and downward spraying after the last rinsing or circulating cleaning The above-mentioned problem is solved by a washing method for a breast-feeding device characterized in that residue removal is performed by jetting clean water from a nozzle .

That is, water or the like that has been pressurized after washing is ejected, and bubbles or the like remaining on the inner surface of the receiver after the last rinse is removed.

The invention described in claim 3 is a cleaning mechanism for carrying out the cleaning method according to claims 1 and 2 in a milk receiving device of a pipeline milker equipped with an automatic cleaning device. An upward spray nozzle connected to the discharge side of the pump and a downward spray nozzle connected to the water supply are provided.

According to a fourth aspect of the present invention, any one of the spray nozzles is a rotary spray nozzle, and the above problem is solved by the cleaning mechanism of the breast feeding device according to the third aspect.

Preferably, the water spray nozzle is a rotary type, and is connected to the water supply via a control valve that can be opened and closed, and cleaning is performed by ejecting the water using the water pressure of the water supply. Further, as a rough operation time, it is preferable to spray for about 30 seconds before cleaning and to spray for about 15 seconds after cleaning. The operation is carried out in the atmosphere before and after cleaning, not vacuuming during cleaning.

  In the past, the residue was removed by the first rinse in the prior art, but by spraying before washing, the dirt components that are difficult to remove can be removed efficiently with water pressure before washing. It has become possible to improve the prevention and cleaning performance and safety.

  After washing, there was a possibility of depositing dirt that could not be removed by natural drainage. However, by spraying after washing, it is possible to prevent residual dirt (supernatant) and improve cleaning performance. became.

  By supplying water from the water supply to the rotary spray nozzle, water with stable water quality can be ejected with sufficient pressure, and the effect of circulating cleaning can be enhanced and the residue of dirt can be prevented.

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 5, the overall configuration of the pipeline milker is similar to that of the prior art of FIG. 3, with a large number of connection ports 110 provided at the branching portion of the breast feeding pipe 102 passing above the washing tank 20. Have At the time of cleaning, the milking unit is suspended at each connection port 110, and the tip of each teat cup (not shown) is immersed in the cleaning liquid in the cleaning tank 20. Then, the discharge side of the breast feeding pump 108 is connected to the breast feeding pipe 122 to drive the vacuum pump 103 and the breast feeding pump 108. The procedure in the case of circulating cleaning and flush cleaning is the same as that in the prior art.

  FIG. 1 is a diagram showing an outline of a cleaning mechanism installed as a part of a breast feeding device unit of a pipeline milker. In the figure, the white arrow indicates the direction in which the cleaning liquid flows during cleaning. Further, the vacuum supply pipe is omitted. In the present embodiment, similar to the conventional cleaning mechanism of FIG. 3, the discharge side pipe of the breast feeding pump 108 is branched in front of the in-line filter 124 to provide the reflux pipe 125, and is provided upward inside the receiver jar 107. It is connected to the cleaning liquid spray nozzle S1. And the washing | cleaning liquid is spouted by the milk pump discharge pressure at the time of circulation washing, and the stain | pollution | contamination on the receiver jar 107 inner surface is removed.

  Furthermore, a downward rotating water spray nozzle S <b> 2 is provided on the inner upper portion of the receiver jar 107. A water supply pipe 126 connected to the rotary water spray nozzle S2 is connected to the water supply via an on-off valve V2, and the on-off valve V2 is opened and closed similarly to other valves and pumps, etc. Is controlled by. By opening the on-off valve V2, water having a constant water pressure is ejected from the water spray nozzle S2 for a predetermined time, and foreign matters and bubbles in the receiver jar 107 and the bottom pipe 120 are removed before and after cleaning.

  A method for cleaning a receiver jar or the like using this cleaning mechanism will be described with reference to the time chart of FIG. First, the on-off valve V2 is opened for 30 seconds before washing, and normal temperature water is spouted from the water spray nozzle S2 toward the inner surface of the receiver jar 107, and the dirt in front of the in-line filter 124 and unrecovered raw milk and fat The separated bubbles are removed and discharged from the drain valve V1. Accordingly, the foreign matters and bubbles remaining in the receiver jar 107 and the bottom pipe 120 as shown in FIG. 1X are removed before the cleaning of the entire pipeline milker is started.

  Next, the entire pipeline milker is cleaned. First, the on-off valve V2 is closed, the washing tub 20 is filled with water or lukewarm water, and the feeding pump 122 on the discharge side of the feeding pump 108 is connected to the washing tub 20 side to drive the vacuum pump 103 and the feeding pump 108. Water or lukewarm water in the washing tub 20 is sucked into the receiver jar 107 through the breast feeding pipe 102, and water or lukewarm water discharged from the bottom pipe 120 is discharged from the discharge valve V3 by closing the drain valve V1, and the first pour. Rinsing is performed. The rinse rinse is completed when there is no water or cleaning liquid in the cleaning tank 20. Next, the cleaning tank 20 is filled with a predetermined heated cleaning liquid, the drain valves V1 and V3 are closed, and the vacuum pump 103 and the breast feeding pump 108 are driven to circulate the cleaning liquid and perform the circulating cleaning. During the circulation cleaning, the cleaning liquid refluxed from the discharge side of the breast feeding pump 108 is ejected upward from the cleaning liquid spray nozzle S1, and particularly the upper part of the receiver jar 107 is cleaned. Circulating cleaning is terminated when the timer reaches a predetermined time.

  After this rinsing and circulation cleaning with a cleaning solution are performed a predetermined number of times, finally, the rinsing is performed once again to remove the internal cleaning solution and the like, and the cleaning process for the entire pipeline milker is completed. After that, the on-off valve V2 is opened again for 15 seconds, and water at room temperature is ejected from the water spray nozzle S2. Especially, the receiver jar 107 is used in a light portion such as dirty oil or bubbles that could not be discharged by the last rinse. Wash away the material staying on the inner surface and discharge from the drain valve V1. Therefore, bubbles or the like that easily adhere to the inner surface of the receiver jar 107 are reliably removed without leaving until the next cleaning.

  In the above embodiment, the case where the present invention is used for cleaning a milk receiving device of a pipeline milker as shown in FIG. 4 has been described. However, the cleaning mechanism of the present invention is also applicable to cleaning of a milk receiving device of another type of milker. Is possible.

  In the present invention, it is possible to remove foreign matter, bubbles, etc. remaining on the inner surface of the receiver jar, which was a blind spot of the conventional cleaning mechanism, by a simple spray internal mechanism, and to prevent the adhesion of dirt, the cleaning performance and the product Since the improvement of safety can be expected, there is great industrial applicability.

It is the schematic which shows the washing | cleaning mechanism of the milk receiving apparatus which concerns on this invention. It is a time chart which shows the washing | cleaning method which concerns on this invention. It is the schematic which shows the structure of the whole pipeline milker which concerns on this invention and a prior art. It is the schematic which shows the washing | cleaning mechanism of the breast-feeding apparatus based on a prior art. It is the schematic which shows the structure of the pipeline milker of FIG. 3 from another viewpoint.

Explanation of symbols

S1 Cleaning liquid spray nozzle S2 Water spray nozzle

V1 discharge valve V2 on-off valve V3 discharge valve

107 receiver jar 108 feeding pump 109 trap 120 bottom piping 121 discharge side piping 122 feeding piping 124 in-line filter 125 reflux pipe 126 water supply pipe

Claims (4)

In a milking device of a pipeline milker equipped with an automatic cleaning device, an upward spray nozzle connected to the discharge side of the feeding pump and a downward spray nozzle connected to the water supply are provided inside the receiver jar. It is characterized by cleaning the inside of the receiver jar by spraying the cleaning liquid from the upward cleaning liquid spray nozzle during the circulating cleaning, and pre-cleaning by spraying water from the downward spray nozzle before the circulating cleaning. A method for cleaning a breast feeding apparatus. In a milking device of a pipeline milker equipped with an automatic cleaning device, an upward spray nozzle connected to the discharge side of the feeding pump and a downward spray nozzle connected to the water supply are provided inside the receiver jar. It is characterized by cleaning the interior of the receiver jar by spraying the cleaning liquid from the upward cleaning liquid spray nozzle during circulating cleaning, and removing the residue by spraying water from the downward spray nozzle after the circular cleaning. A method for cleaning a breast feeding apparatus. In a milking device of a pipeline milker equipped with an automatic cleaning device, an upward spray nozzle connected to the discharge side of the feeding pump and a downward spray nozzle connected to the water supply are provided inside the receiver jar. A cleaning mechanism for a breast-feeding device. The cleaning mechanism for a breast-feeding apparatus according to claim 3, wherein any one of the spray nozzles is a rotary spray nozzle.

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