JPS62165136A - Solution leak detector - Google Patents

Abstract

PURPOSE:To improve the precision of inspection for detecting the leak of a solution by providing a pure water producing device, a neck washer device, an inspecting device, etc. CONSTITUTION:The pure water producing device 100, neck washer device 200, inspecting device 300, etc., are provided. Then, the device 100 produces pure water which is used to wash the mouth ring part of the device 200, injected into the mouth ring part of the device 300, and used to wash a probe by a pure water cylinder. This pure water enters a pure water tank 500 installed in the device 300, sent to a washing part by being pressed by a pump, and sent to an injection part by head pressure. Then when a barrel detection sensor for a neck washer detects a beer barrel being positioned at the pure water washing part, an automatic valve V1 is opened and the pure water is injected from a nozzle N1 to the mouth ring part for a constant time to perform wash ing. When the barrel is not defective, an automatic valve V5 is opened and air is blown out of a nozzle N4 to remove water from the mouth ring part. Thus, the inspection accuracy is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a solution leakage detection device for detecting solution leakage from a solution inlet of a container such as a beer barrel.

[Prior Art] Conventionally, this type of solution leakage detection device has been disclosed in Japanese Patent Application Laid-Open No. 58-3522-3522, ``Method for Detecting Solution Leakage'' by the present applicant. This detects solution leakage by injecting water into a solution inlet and measuring its electrical conductivity.

(Problems to be Solved by the Invention) The conventional solution leakage detection device described above has the drawback that the accuracy of measuring electrical conductivity is slightly inferior because the solution inlet is cleaned with clean water before inspection. It has been decided! n-
The disadvantage is that it can only inspect containers of this type.

[Means for solving problems]

The solution leak detection device of the present invention includes a pure water generator, a container type detection means for detecting the type of container, and a solution inlet of a container filled with a solution and flowing on a conveyor with the solution inlet facing upward. A pure water injection part where pure water is injected using a pure water supply nozzle to clean the solution injection port, and at this time the position of the pure water supply nozzle tip changes depending on the type of container, and a solution injection port using the pure water injection part. After cleaning, the water remaining in the solution inlet is blown away by air from the air supply nozzle. At this time, the air blow part changes the position of the air supply nozzle tip depending on the type of container, and the solution inlet supplies pure water. The guide part guides the container by changing the guide width depending on the type of container so that it passes directly under the nozzle and air supply nozzle, and the solution inlet is located directly below the pure water supply nozzle and air supply nozzle. a neck washer device that has a detector that detects and outputs a signal for positioning the container; a container type detection means that detects the type of container; Pure water is injected into the solution inlet of the container flowing on the conveyor using a pure water injection nozzle. Insert a probe into the solution inlet of the injected container and measure the air conductivity of the water diluted with pure water at the solution inlet to check whether the container is leaking the solution. There is an inspection section in which the probe moves in the height direction depending on the type of container, a probe cleaning section that cleans the tip of the probe after inspection, and pure water that accumulates in the solution inlet of the container after inspection. The air blow section automatically blows out diluted water from the air supply nozzle and switches depending on the position of the tip of the air supply nozzle or the type of container, and the solution inlet is connected to the pure water injection nozzle and the air supply nozzle. The guide part guides the container by changing the guide width according to the size of the type so that it passes directly below, and the solution inlet is located directly below the pure water supply nozzle, the measurement position of the probe, and the air supply nozzle. an inspection device having a container positioning means for positioning the container at the end of the conveyor, a reject section for discharging containers that have leaked solution from the inspection section to the outside of the conveyor, and a display for displaying the electrical conductivity measured in the inspection section. an alarm device that warns when the inspection result of the inspection section indicates a solution leak; and a pure ice supply nozzle, an air supply nozzle, a pure water injection nozzle, depending on the type of container detected by the container type detection means.
It has an electric control panel that sequentially controls each of the devices, including a control section that automatically switches the tip position of the probe and the guide width of the guide section.

[Effect]

Equipped with a pure water generator and using pure water as washing water and dilution water, the measurement accuracy of electrical conductivity, that is, the accuracy of the test, is improved, and the guide part of the container, nozzle, and probe are made movable. In addition, it is equipped with means for detecting the type of container, and the guide width of the guide section and the nozzle are adjusted according to the type of container.
By automatically switching the position of the tip of the probe, it is possible to adapt to a variety of containers, and as a result, the cost of the device is reduced.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 (1) and (2) are a plan view and a side view of an embodiment of the solution leakage detection device of the present invention, and FIG. 2 is an inspection device 300.
It is a sectional view of the inspection part of.

This embodiment is installed in a beer kegging line to detect beer leakage from the twitch inflow metal part of a beer barrel, including a pure water generator 100, a neck washer 20
0, inspection device i'7300. It consists of an electric control panel 400, a pure water tank 500, pure water piping (not shown), and the like.

(1) Pure Water Generator 100 The pure water generator 100 uses a pure cylinder to generate pure water used for cleaning the mouthpiece of the neck washer device 200, injecting water into the mouthpiece of the inspection device 3oo, and cleaning the probe. This pure water enters a tank 500 installed in the inspection device 300, is pressurized by a pump and sent to the cleaning section, and is sent to the water injection section by differential pressure.

(2) Neck washer device 200 At the top of the frame base 201 is an automatic valve Vl for supplying pure water.
, an automatic air supply valve v4, and a height positioning power cylinder Ct are installed. At the tip of the rod of the height positioning power cylinder C1, a pure water supply nozzle N1 and an air supply nozzle N3 are attached via a plate 202 to the automatic pure water supply valve Vl and the automatic air supply valve V4, respectively. The height of the tip of the pure water supply nozzle old and the air supply nozzle N3 can be positioned according to the type (height) of the barrel. Note that the height is detected by a magnetic proximity switch (not shown). Fixed guide 203.
Reference numeral 204 guides the beer barrel with the largest outer diameter so that its mouthpiece is positioned on the line connecting the pure water supply nozzle N1 and the air supply nozzle N3. For beer kegs with outside diameters other than this, move guides 205 and 206 to guide width switching cylinder G4. By moving C5, the guide width is automatically switched. The neck washer barrel detection sensor Pill, pH2 is a reflective photodetector that detects when the base is located directly below the pure water supply nozzle N1 and air supply nozzle N3, respectively, and sends a detection signal to the electric control panel 4.
0 (l).In addition, water that overflows or flies from the mouthpiece during pure water cleaning and air blowing should be sent to the water receiver 20.
It is collected at 7 and υ1 is issued.

The following operation will be explained. When the neck washer barrel detection sensor pH1 detects that the beer barrel is located in the pure water washing section, the automatic pure supply valve Vl opens and pure water is injected from the pure water supply nozzle into the mouthpiece for a certain period of time. Then, the mouthpiece is cleaned. When cleaning is completed and the neck washer barrel detection sensor P112 detects that the beer barrel is located in the air blowing section, the automatic air supply valve V5 opens and the pure water accumulated in the mouthpiece is blown away for a certain period of time. It will be done. Note that this neck washer device 2 is used for beer barrels.
00, it is constantly moving on the conveyor 600 at a slow speed.

(3) Inspection device 300 At the top of the frame heath 301, there is a pure water tank 500 (with built-in pure water feed pump), an automatic valve for supplying pure water V2°V3, an automatic valve for supplying air V5, and a height positioning power cylinder C2, C3 is installed. Plate 3 is attached to the rod tip of height positioning power cylinder C2, l, l, respectively.
02. : A pure water supply nozzle N2 and an air supply nozzle N4 are installed which are connected to the automatic pure water supply valve v2 and the automatic air supply valve v5 through 103, and the pure water supply nozzle can be adjusted depending on the type (height) of the barrel. The heights of the tips of the air supply nozzles N2 and N4 can be positioned. Note that the height is detected by a magnetic proximity switch (not shown).

A sensor head 305 having a probe P at its tip is raised from the bottom by an air cylinder 306 attached to the base frame 301 by a bracket 304. Note that this sensor head 305 is rotated 90 degrees in the vertical direction at its original position before being lowered, and the probe P is cleaned after measurement with pure water from the pipe 307 connected to the pure water supply valve v3. It looks like this. The fixed guides 308 and 309 are the fixed guides 203 and 204 described above.
plays the same role. Movement guide 310.311,312
, 313 are conveyor guide width switching cylinders C7, respectively.
, [:6. It moves by C9 and C8 and plays the same role as the movement guides 205 and 208 described above. The positioning stop cylinders CIO and C1l position the beer barrel at the standby position, the positioning stop cylinder C12 at the pure water injection position, and the positioning stop cylinders C13 and C14 at the inspection position. The reject cylinder C15 discharges defective (beer leaking) beer kegs to the reject conveyor 314. Barrel detection sensor for inspection equipment PII3, P114
, P115 detects that the beer barrels have come to the standby position, pure water injection position, and inspection position, respectively. The reject barrel detection sensor P116 detects defective beer barrels, and the barrel discharge conveyor full detection sensor P117 detects defective beer barrels from the inspection device 300.
Detects that the iT Conhair 600 is full with beer barrels and rejects Conhair full detection sensor P]1
8 detects that the reject conveyor 314 is full.

Next, the operation will be explained. The beer barrel first comes to the standby position, but if there is a beer barrel at the pure water injection position, it is kept on standby by the positioning stop cylinders CIO and C11 until the pure water injection is finished and the beer barrel at the pure water injection position starts moving. If there is no beer keg at the pure water injection position, the positioning stop cylinders CIO and C1l are immediately opened and the beer keg moves toward the pure water injection position. When the barrel detection sensor P114 for the inspection device detects that the beer barrel has come to the pure water injection position, the beer barrel is stopped by the 5 positioning stop cylinder C12, the automatic valve v2 for supplying pure water opens, and a fixed amount of pure water is supplied. Water is injected into the mouthpiece from the pure water supply nozzle N2. When the pouring operation is completed, the positioning stop cylinder C12 is opened and the beer barrel is moved to the next process.

When the barrel detection sensor pH5 for the inspection device detects that the beer barrel has come to the inspection position, the beer barrel is stopped by the positioning stop cylinders 013 and 014,
The sensor head 305 is lowered from the top by an air cylinder 306, the probe P enters the mouthpiece, and the electrical conductivity is measured. After measurement, the sensor head 305 rises to its original position and rotates 90 degrees, and the automatic pure water supply valve v3 opens and the probe tip is cleaned by the pure water that blows out from the pipe 307, and the sensor head 305 returns to its original position. Invert. After this, use the positioning stop cylinder (:13.
C14 opens and the beer keg starts moving, and when the reject keg detection sensor P116 detects that the beer keg has reached the reject position, and the keg is determined to be a defective keg, the shelving cylinder CI5 moves the keg to the shelving container 314. If the barrel is discharged and the barrel is not defective, the automatic air supply valve V5 opens and air is blown out from the air supply nozzle N4 for a certain period of time to remove moisture from the mouthpiece.
It is transported by a conveyor 600 to a packaging location (not shown).

(3) Electric control panel 400 This electric control panel 400 has a power indicator lamp, a barrel type changeover switch, a barrel type changeover switch to select the type of barrel, and each nozzle N1 to N4 of the neck washer device 200 and inspection device 300. A lamp that lights up when the specified position is reached, a switch to switch between automatic and manual operation of the device, an automatic indicator lamp that lights up depending on the changeover switch, a manual indicator lamp, and an operation indicator for the pure water injection pump that lights up when the pure water injection pump is in operation. lamp, a buzzer that sounds when a defective barrel is detected, a defective barrel indicator lamp that lights up, a conveyor lamp that lights up when the conveyor 600 is in operation, a buzzer stop switch that stops the buzzer, and pure water measured by probe P in the inspection department. A conductivity indicator to display the conductivity, a defective barrel count indicator to display the number of defective barrels (none of which are shown), etc. are attached. By setting the changeover switch to "auto" and pressing the automatic operation push button, the automatic display lamp lights up, the pure water feed pump operates, and all equipment except the conveyor 600 enters automatic operation, and the changeover switch is turned on. Accordingly, the neck washer device 200 and the inspection device 300
Height positioning of each nozzle old to N4 and probe P and conveyor guide 205, 206, 310. :III.

The guide widths 312 and 113 are switched.

In addition, the moving guides 205, 206, 310 to 313 are provided separately for the cleaning section of the neck washer device 200, the air blow section, the standby position of the inspection device 300, the pure water cleaning section, the inspection section, and the air blow section, and furthermore, the movement guides 205, 206, and 310 to 313 are provided separately for the cleaning section of the neck washer device 200, the air blow section, the standby position of the inspection device 300, the pure water cleaning section, the inspection section, and the air blow section, and furthermore, the movement guides 205, 206, and 310 to 313 are provided to enter each of these sections. By providing a detection means (for example, a photodetector) for detecting the type of beer barrel just before, it is possible to deal with various beer barrels randomly flowing on the conveyor 600.

FIG. 3 is another embodiment of the present invention, which is a side view of an inspection device.

In this embodiment, the pure water injection part and the inspection part of the inspection device are made into a tuple, and the pure water injection part has two nozzles.) This improves the inspection ability, which was conventionally limited by the moving time of the probe. It was planned.

Although the above embodiment deals with beer kegs, leakage of solution from similar containers other than heel kegs can also be detected by the above-mentioned device.

(Effects of the Invention) As explained above, the present invention improves electrical conductivity measurement accuracy, that is, inspection accuracy, by using pure water as washing water and dilution water. , which makes the probe movable and is equipped with a detection means to detect the type of container, and can be used with a variety of containers by automatically switching the guide width of the guide section, nozzle, and tip position of the probe according to the container type. This has the effect of reducing the cost of the device.

[Brief explanation of drawings]

FIG. 1 is a plan view and a side view of an embodiment of the solution leak detection device of the present invention, and FIG. 2 is a sectional view of the inspection section of the inspection device 300.
FIG. 3 is a side view of another embodiment. 100...Pure water generator, 200...Neck washer device, 300...Inspection device, 400...Electric control panel, 500...Tank, [i 00 = conveyor.

Claims (1)

[Claims] A pure water generator, a container type detection means for detecting the type of container, and a method for supplying pure water to a solution inlet of a container filled with a solution and flowing on a conveyor with the solution inlet facing upward. The solution injection port is cleaned by injecting pure water through the nozzle, and the position of the tip of the pure water supply nozzle changes depending on the type of container. After cleaning the solution injection port by the pure water injection section. , an air blow part that blows out the water remaining in the solution inlet with air from the air supply nozzle, and the position of the tip of the air supply nozzle changes depending on the type of container, and a solution inlet that is connected to the pure water supply nozzle and air. The guide part guides the container by changing the guide width depending on the type of container so that it passes directly below the supply nozzle, and the guide part that detects when the solution inlet is directly below the pure water supply nozzle and air supply nozzle. a neck washer device having a detector that outputs a signal for positioning the container; a container type detection means for detecting the type of container; Pure water is injected into the solution inlet of the flowing container using a pure water injection nozzle, and at this time, the position of the pure water injection nozzle tip changes depending on the type of container, and the pure water is injected. Insert a probe into the solution inlet of the container and measure the electrical conductivity of water diluted with pure water at the solution inlet to check whether the container is leaking solution. There is an inspection section that moves in the height direction according to the height of the test, a probe cleaning section that cleans the tip of the probe after inspection, and a probe cleaning section that cleans the tip of the probe after inspection. The air blow part automatically blows air from the supply nozzle, and the position of the tip of the air supply nozzle changes depending on the type of container, and the solution inlet passes directly below the pure water injection nozzle and the air supply nozzle. A guide part that guides the container by changing the guide width according to the size of the container, and a container that positions the container so that the solution inlet is located directly below the pure water supply nozzle, the measurement position of the probe, and the air supply nozzle. an inspection device having a positioning means, a reject section for discharging containers that have leaked solution from the inspection section to the outside of the conveyor; a display meter that displays the electrical conductivity measured in the inspection section; An alarm device that warns when the test result indicates a solution leak, and a pure water supply nozzle, an air supply nozzle, a pure water injection nozzle, depending on the type of container detected by the container type detection means.
A solution leakage detection device including a control section that automatically switches the tip position of the probe and the guide width of the guide section, and has an electric control panel that sequentially controls each of the devices.