JPH06269241A - Liquid spraying apparatus and treatment of material - Google Patents

Abstract

PURPOSE:To provide a liquid-spraying apparatus and method effective for preventing the influence of an agrichemical liquid on human body caused by the drift of the liquid to the outer atmosphere in the spraying of liquid to an object, improving the reliability of examination data by the control of the spraying quantity and the spraying time of the liquid, etc., and improving the treating capacity. CONSTITUTION:A spraying chamber 1 is provided with an inlet door 2, an outlet door 3, plural spray nozzles 6,7 having different heights and a rotary table 5. A chain conveyor 4 for introducing and delivering a spraying object is laid, an chemical liquid container 13 and a washing water tank 16 are placed outside of the spraying chamber, either one of the liquids is supplied to the spray nozzles 6,7 and the liquid is sprayed in the form of mist with compressed air. The introduction of the spraying object, spraying of chemical liquid, delivery of the object from the spraying chamber and the cleaning in the spraying chamber and the chemical liquid supplying system are automatically performed by an electric means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid spraying device for spraying a medicinal solution onto articles to be treated such as plants and plants, and a method for treating articles such as plants and plants as a drug efficacy test method for agricultural chemicals and the like.

[0002]

2. Description of the Related Art For example, in exploratory research for developing new agricultural chemicals, the first task is to formulate a large number of compounds of unknown toxicity in liquid form, aiming at agricultural crops for protection and exclusion. To test the strength of the compound's biological activity by application to pests. This work is called a screening test.

[0003] Conventional screening tests have been performed manually, such as supplying chemicals, carrying in plants, carrying out plants, spraying chemicals, and the like. In this case, the worker wears a gas / dust mask, and an air curtain is provided around the spraying place to prevent the fog-like chemical liquid from drifting to the outside, but this cannot be completely prevented.

[0004]

For example, in the case of a screening test, a drug solution as small as possible is effectively used, and it is evenly sprayed on both front and back surfaces of plant leaves, and the drug solution is not drifted to an operator or the outside. Safety is required.

Therefore, the present invention ensures the safety of the operator and the environment by completely preventing the spray liquid such as the chemical liquid from drifting to the outside, and the accuracy of the amount of the chemical liquid adhered to the article to be processed. It is an object of the present invention to provide a liquid spraying device and a processing method for the liquid spraying device, in which the reliability of test data is improved by increasing the processing efficiency and the processing capacity is increased by automating the process.

[0006]

In order to solve this problem, the liquid spraying apparatus of the present invention has a spraying chamber equipped with an automatic door for letting in and out an article to be processed, and automatically carrying the article to be processed into the above-mentioned spraying room. Transfer means for automatically carrying out from the spray room,
A rotary table having an axis at a predetermined position on the bottom of the spray chamber,
A spray nozzle disposed at least at one location in the spray chamber, a spray liquid container and a cleaning liquid container disposed outside the spray chamber, and either the spray liquid container or the cleaning water container to the spray nozzle. It is characterized by having a transfer pipe for transferring a liquid.

The method of treating an article of the present invention, that is, the method of manufacturing an article to be treated, comprises a carrying-in step of bringing an article to be treated into the spray chamber and closing a door, and a spray nozzle while rotating the article to be treated in the spray chamber. From the spraying process of spraying the spraying liquid from, the carrying-out process of opening the door after the spraying and carrying out the article to be processed to the outside of the room, and the washing process of discharging the cleaning liquid from the spray nozzle with the door closed. It has a feature.

[0008]

The operation of the liquid spraying device of the present invention will be described. When the article to be treated, for example, a living plant placed on a tray is carried into the spray chamber by the transfer means, the door of the spray chamber is closed and the spray chamber is shielded from the outside. The carried-in article stops on the axis of the rotating table, and then the article rotates, and at the same time, the atomized spray liquid is discharged from the upper and lower spray nozzles and sprayed onto the article.

When a predetermined amount of spray is finished, the rotation stops,
Articles are carried out of the spray room. Next, in a spray room in which no articles are present, a cleaning liquid, for example, cleaning water, is discharged into the room by using the same spray nozzle that sprays a chemical solution or the like, and thereby, the cleaning liquid adheres to the transfer pipe and the spray nozzle. The chemicals and the like are washed and the spray chamber is also washed.

[0010]

FIG. 1 shows a first embodiment of the device of the present invention. The spraying chamber 1 is a box shape having an automatic article loading door 2 on the left side and an automatic article loading door 3 on the right side, and two parallel chain conveyors 4 for loading and unloading have both doors. A rotary table 5 is provided at the center of the bottom surface of the spray chamber, which is pierced through, and at least two spray nozzles are provided in the periphery of the spray chamber, and a first spray nozzle 6 directed obliquely downward from a high position. A second spray nozzle 7 is provided that is directed obliquely upward from a low position. Further, on the front surface of the spraying chamber 1, there is provided a manually openable door that is normally closed. The four side surfaces of the spray chamber 1 are formed of a transparent plate such as glass so that the inside can be observed.

In this device, two nozzles are fixed, but it is also possible to spray while moving the nozzles by means of moving one or more nozzles in the room, for example, by rotating a ball screw with a motor. .

A rotation drive mechanism such as a motor 29 for driving the rotary table 5 is provided on the base 10 below the spray chamber 1.
Further, in order to treat the chemical mist discharged into the spraying chamber, a waste liquid recovery device including an exhaust fan 21, a filter 22 for capturing the chemical mist, and an exhaust pipe 23 that connects them to an outdoor exhaust system is provided. ing. In addition,
The fan 21 and the like keep the inside of the spray chamber 1 at a slight negative pressure so that the drug mist does not leak to the outside from a gap or the like in the wall of the spray chamber 1.

The article to be processed is carried on a square tray 11 as illustrated in FIG. The size of the tray 11 is larger than the width of the two chain conveyors 4,
The conveyor claws are pushed by the feed claws attached to the conveyor 4 to run.

Adjacent to the outside of the spray chamber 1 and above the floor surface of the spray chamber 1, there is provided a chemical solution container base 12. This stand 1
On the 2 is provided a turntable 14 having pockets for holding the containers 13 ... 13 formed along a concentric circumference of the outer circumference,
A suction pipe 15 whose elevation is controlled is provided above the chemical liquid suction position. Further, a washing water tank 16 is arranged near this suction position. The turntable 14 is rotationally driven by a motor and can transfer the container held in a desired pocket to the suction position.

FIG. 3 shows a supply system to the spray nozzles 6 and 7. The chemical liquid suction pipe 15 and the suction pipe of the washing water tank 16 are connected in parallel to all the spray nozzles in the spray chamber through the switching valve 17 and the liquid pump 18. In addition, compressed air is supplied from a compressed air source 19 through an on-off valve 20 to each spray nozzle, and sprays a chemical solution or the like in a mist state. A numerical value setting device is provided on the front surface of the chemical liquid container table 12, so that one spraying time, that is, the opening time of the opening / closing valve 20 can be arbitrarily set.

An air cylinder for opening / closing the carry-in door 2 of the apparatus, an air cylinder for opening / closing the carry-out door 3, a drive motor for the rotary table 5 in the spray chamber, a switching valve 17, a liquid motor 18, and a compressed air open / close valve 20. Are all controlled by the sequence controller.

FIG. 4 shows a time chart of a program controlled by the sequence controller. In synchronization with the operation of the carry-in chain conveyor, the carry-in door 2 is opened, and the articles to be processed placed on the tray are carried into the spray chamber,
It stops on the rotating table 5 at the center, and the door 2 closes. This is the loading process. Subsequently, the rotary table 5 rotates, and the chemical liquid is sprayed in the form of mist from the spray nozzles 6 and 7. This is the spraying process. By this spraying process, the chemical solution is evenly sprayed on both the front and back surfaces of the leaves of plants and trees. After this spraying process,
The carry-out door 3 is opened, the chain conveyor 4 travels, the tray is carried out to the outside of the room, and the door 3 is closed. This is the unloading process. Subsequently, the cleaning water is sprayed from the spray nozzles 6 and 7 into the spray chamber in which both the doors 2 and 3 are closed. By this washing step, the liquid pump 18, the spray nozzles 6 and 7 and the inside of the transfer pipe are washed, and chemical spraying is guaranteed under the same test conditions every time.

FIG. 5 shows a second embodiment of the device of the present invention. This embodiment is different from the first embodiment in that the spray nozzle is the spray chamber 1
It is located at the upper part of the and reciprocates. That is, the spray nozzle 25 is supported by the box 28 that reciprocates while being supported by the feed screw 24 and the guide rod 27, and the spray nozzle 25 reciprocates above the spray chamber 1 in accordance with the rotation of the feed screw 24. A medicine and compressed air are supplied to the spray nozzle 25 through a flexible tube 26. A motor (not shown) that drives the feed screw 24 is controlled by the sequence controller to set the number of movements, the spraying time, and the like.
This device tests the herbicidal effect of the plants that are the objects to be treated placed in the spraying chamber, and it shows how much the herbicidal effect should be applied to the area of the ground where the objects are treated. Used to find out.

[0019]

According to the present invention, since the sprayed chemical liquid does not leak to the outside, the contamination of the working environment is prevented, and the gas / dust mask worn by the worker in the past is no longer necessary, which has an effect on the human body. Could be prevented.

Further, regardless of the shape of the article to be treated, the chemical solution or the like is evenly attached to the entire surface in the form of a mist, and the amount of the sprayed solution,
Since the spraying time is controlled and the transfer system of the chemical liquid etc. is washed each time the spraying is performed, the test conditions are made uniform, the reliability of the test data is improved, and the test data can be efficiently performed.

Further, according to the present invention, when the work of placing the article to be processed on the tray and the work of taking out the article from the tray are performed manually, the structure of the spraying device is greatly simplified and the cost is reduced. It is economical to manufacture, and in the conventional example, at least 6 workers were restrained in the primary screening work and only about 60 samples could be processed per hour. For example, including 90 samples on the tray, it was possible to process about 90 samples under the constraint of 3 people, and it was more than doubled when converted to the number of samples processed per person.

[Brief description of drawings]

FIG. 1 is a partial sectional view of a front view showing an embodiment of the device of the present invention.

FIG. 2 is a perspective view showing an example of an article to be processed.

FIG. 3 is a diagram showing a supply system of a chemical liquid or the like in an example.

FIG. 4 is a time chart showing an embodiment of the method of the present invention.

FIG. 5 is a perspective view showing a spray chamber of an embodiment of the device of the present invention.

[Explanation of symbols]

 1 ... Spraying room 2 ... Door for loading 3 ... Door for unloading 4 ... Chain conveyor 5 ... Rotating table 6 ... Spray nozzle at high position 7 ...・ ・ Lower spray nozzle 11 ・ ・ ・ ・ ・ ・ Tray 12 ・ ・ ・ ・ ・ ・ Chemical solution container base 13 ・ ・ ・ ・ Chemical solution container 14 ・ ・ ・ ・ ・ ・ Spindle 15 ・ ・ ・ ・ ・ ・ Suction pipe 16 ・ ・ ・ ・ ・ ・ Washing water tank

Claims (6)

[Claims] 1. A spraying chamber equipped with an automatic door for letting in and out an article to be treated, a transfer means for automatically carrying in an article to be treated into and out of the spraying chamber, and a predetermined position at the bottom of the spraying chamber. A rotary table having an axis, a spray nozzle arranged at least at one position in the spray chamber, a spray liquid container and a cleaning liquid container arranged outside the spray chamber, and a spray liquid container or a cleaning water container. A liquid spraying device having a transfer pipe for transferring a liquid from one of the spray nozzles. 2. A carrying-in step of carrying the article to be treated into the spraying chamber and closing the door, a spraying step of spraying the spraying liquid from the spray nozzle while rotating the article to be treated in the spraying chamber, and opening the door after the spraying is completed. And a cleaning step of discharging the cleaning liquid from the spray nozzle with the door closed while the method of processing the article is carried out. 3. The article to be treated is a living plant such as vegetation placed on a tray, and the spray solution is a chemical solution.
The liquid spraying device according to claim 1. 4. The article to be treated is a living plant such as vegetation placed on a tray, and the spray solution is a chemical solution.
The method for treating an article according to claim 2. 5. A plurality of spray liquid containers are arranged along the same circumference on a rotary plate installed outside the spray chamber, and a plurality of spray liquid containers are selected from a predetermined container selected by rotation control of the rotary plate. A device configured to supply a spray liquid to the spray nozzle.
Alternatively, the liquid spraying device according to claim 3. 6. The liquid spraying device according to claim 1, wherein a side wall of the spraying chamber is a transparent body.