JP2012058219A - Gas barrier test universal measuring tool for packaging container - Google Patents

Abstract

In a conventional container measuring jig in which a gas inlet / outlet pipe is integrated by welding and fixing to a flat plate for sample installation, measurement by a disposable method is difficult to use, and the sample container and the flat plate are detached from the adhesive. In order to solve the work danger and work time, a jig is provided that makes a flat plate and a gas inlet / outlet pipe into a pressure assembly type.
A sample installation flat plate 3 and a box-type gas introduction / extraction part 1 are separately separated and made independent, and the sample installation flat plate 3 is pressure-bonded to a box-type gas introduction / extraction part 1 and a presser upper lid 2 with a screw. The flat plate 3 was assembled and closely attached to enable measurement in a disposable manner.
[Selection] Figure 1

Description

In order to solve the unexpected accident and the considerable work time due to the adhesive peeling work of the gas barrier test of the packaging container of any shape, the present invention makes the metal plate for sample setting and the gas introducing / extracting tool as an assembly type, It can be removed and made disposable, omitting the peeling operation of the adhesive between the packaging container and the metal flat plate so that the measuring operation can be performed safely and with reduced time.

There is a conventional measuring jig for gas barrier test of a packaging container in which two holes are formed in a metal flat plate and a metal gas introduction pipe and a metal gas discharge pipe are welded and fixed integrally. An epoxy resin is applied to a portion corresponding to the diameter of the test container around the gas inlet pipe and the gas outlet pipe protruding from the two holes. Before the resin solidifies on the applied epoxy resin, the mouth of the test container is applied and held until the metal flat plate and the test container are slightly fixed while supporting the container by hand. Several hours after the fixing operation, a gas barrier test measuring jig is attached to the gas barrier test device, a carrier gas is allowed to flow through the test container, and the amount of permeated air is measured with an oxygen detector or water vapor detector. To do. When the measurement of the permeation amount is completed, the gas barrier test measuring jig is removed from the gas barrier test apparatus. In order to attach the next test container to the measurement jig for gas barrier test, the measurement end container and the metal flat plate must be detached from the adhesive. Therefore, conventionally, there has been no flat plate and gas inlet / outlet pipe isolated single-use gas barrier device jig for measuring packaging containers of any shape.

In order to attach the next test vessel to the gas barrier test measuring jig, in the conventional welded integrated flat plate adapter, the measurement-completed vessel and the metal flat plate must be detached from the adhesive. It is necessary to separate the epoxy resin adhesive applied to the metal flat plate and the epoxy resin adhesive fixed to the container. Heat is applied to the epoxy resin adhesive using a drier or the like, softened, and peeled off with a knife or the like. In such a conventional measuring jig for gas barrier test of an integrated packaging container, there has always been a fear of unexpected accidents and considerable work time to detach the test container fixed to the metal flat plate. The present invention has been made to solve such problems.

The metal flat plate, metal gas inlet tube, and metal gas outlet tube, which are configured as test jigs for testing, are separated separately from the beginning and made independent, and the metal plate for sample setting and the box-type gas inlet / outlet are crimped and sealed. It is an assembly-type, disposable metal plate that can be removed. The test container does not contact the small hole in the center of the aluminum foil metal plate, and tests a carrier gas inlet tube with a smaller diameter. It is inserted into the container, and the gas outlet uses the space around a small hole opened at the center of the gas introduction pipe and the metal plate of the aluminum foil. Apply epoxy resin adhesive to the location corresponding to the diameter of the slightly larger container from the small hole opened in the center of the aluminum foil flat plate that is horizontally crimped to the box-type gas inlet / outlet. Place a weight on the bottom of the test container and bond it to the aluminum metal plate. Disposal method by replacing the flat plate for attaching the test container with the measuring jig for gas barrier test of the present invention in which the box-type gas introduction / exit pipe part and the metal flat plate for sample installation are made independent and each other is a crimping device assembly type I made it.

It is not necessary to detach the metal plate for installing the test container sample such as aluminum foil from the measurement-completed container sample bonded with the adhesive, and the next test container can use another metal plate such as aluminum foil. Therefore, the detachment work from the adhesive becomes unnecessary, and the detachment work itself can be omitted. Therefore, the occurrence of unforeseen accidents is reduced and the detachment operation time is omitted, so that a highly safe container test can be performed. In addition, the reduction of manual work time and the improvement of equipment operating time can be greatly improved. In other words, it has a tremendous effect in terms of safety and health and equipment operation time. Also, a new flat plate can always be used for replacement, preventing gas leaks from scratches on the flat plate surface due to reuse, and separating the flat plate from the gas inlet / outlet pipe, so that the welded protruding gas inlet pipe and gas discharge Tubes are not required, and the test container can be fixed on an aluminum foil plate installed horizontally, so that workability is good, there is no uneven accumulation of epoxy adhesive, and stable adhesive strength with little individual difference can be obtained. . Therefore, stable test measurement results can be provided and highly reliable data can be detected.

It is sectional drawing which shows the use condition of this invention. It is a top view of the present invention.

First, the epoxy adhesive 10 is applied to the ridges of the aluminum flat plate 3 with the sample setting hole and the measurement sample container 7 so as not to come into contact with the hole of the flat plate without any gap, and is placed on the bottom of the measurement sample container 7. Wait for the applied adhesive 10 to dry. The sample container 7 bonded to the aluminum flat plate 3 is sandwiched between the box-type gas introduction / exit tool 1 and its presser lid 2, the mounting screws 11 are screwed in evenly, and the ends of the aluminum sheet 3 are crimped and sealed with the upper and lower 0 rings 4. The gas inlet pipe port 5 and the gas outlet pipe port 6 are connected to the gas barrier measuring device, the gas is supplied to the inside of the box-type gas inlet / outlet part 1, and the carrier gas introduction is extended in order to efficiently send the gas into the sample container 7. The tube 9 is passed through the aluminum sheet intake / exhaust hole 8. The mixed gas with the external gas permeated from the sample container 7 passes from the aluminum sheet intake / exhaust hole 8 to the box-type gas inlet / outlet 1 and the gas outlet pipe port 6 and is sent to the gas barrier permeability measuring device. When changing to the next sample container 7 and measuring, loosen the mounting screw 11 with the previous sample container 7 adhered to the aluminum plate 3, remove the presser lid 2, remove it from the box-type gas inlet / outlet, and remove the next sample The container 7 is installed in the gas introduction / extraction part tool in the same manner as described above. Apiezon T or grease is applied to each of the upper and lower 0 rings 4 sandwiching the end of the aluminum sheet 3. Since the presser upper lid 2 needs to be crimped and sealed at the end portion of the sample-installed aluminum sheet flat plate 3 with the exhaust hole, it is assumed that the presser upper lid 2 is of a center-cut type.

DESCRIPTION OF SYMBOLS 1 Box type gas introduction / extraction part 2 Presser top cover 3 Aluminum sheet flat plate for sample installation 4 Rubber 0 ring 5 Gas introduction pipe port 6 Gas outlet pipe port 7 Sample container for measurement 8 Aluminum sheet intake / exhaust hole 9 Carrier gas introduction extension pipe 10 Epoxy adhesive 11 Mounting screw for crimping

Claims (2)

A flat plate, a gas introduction pipe, and a gas discharge pipe that are configured as a test measurement jig are separately separated and made independent, and the flat plate and the gas introduction / exit tool are made into a crimping assembly type, and the flat plate is made to be a detachable type. The test container does not come into contact with the hole formed in the flat plate, the gas introduction tube is inserted into the test container, and the gas discharge uses the space around the hole formed in the gas introduction tube and the flat plate. Adhesive is applied to a location corresponding to the diameter of a larger container through a hole formed in a flat plate that is horizontally crimped and installed on the gas introduction / extraction tool, and the mouth of the test container is applied to adhere to the flat plate. In other words, the flat plate and the test sample container are bonded, and the flat plate is used for replacement by attaching the flat plate to the gas inlet / outlet tool with the gas inlet pipe and gas outlet pipe, and measuring the container. The flat plate and the test sample container are a single plate replacement method. Separately and independently separate the aluminum metal flat plate, metal gas introduction pipe and metal gas discharge pipe, which are configured as measuring jigs applicable to containers of all shapes, and the container metal sample set aluminum plate and stainless steel box gas The lead-out tool is a crimp assembly type by screwing a screw using a rubber 0-ring, a screw and a presser upper lid, and it is possible to remove the aluminum sheet flat plate with a hole for sample installation, and a disposable method after the measurement is completed. It is. The sample container for measurement does not contact the small hole opened in the center of the metal plate of the aluminum foil, and a nitrogen gas inlet tube with a smaller diameter is inserted into the test container, and the gas outlet is connected to the gas inlet tube and the aluminum foil. The space around a small hole opened in the center of the metal plate is used. The center of the aluminum sheet flat plate for the installation of aluminum foil samples, which is tightly crimped horizontally by sandwiching the aluminum sheet with the upper and lower rubber 0-rings, by tightening the stainless steel box-type gas inlet / outlet and the presser upper cover with screws Apply epoxy resin adhesive to the location corresponding to the diameter of the container that is slightly larger than the small hole opened in the hole, place the mouth of the measurement sample container on the bottom of the measurement sample container, and place it on the aluminum metal plate. Glue. The metal stainless steel box-type gas inlet / outlet and the aluminum metal flat plate for sample installation are made independent, and the metal stainless steel box-type gas inlet / outlet is divided into a main body and a crimping lid, with a hole in the center. Apply Apiezon T or grease to the end of the aluminum metal flat plate for sample installation on the rubber 0-ring, tighten the screws with the upper and lower 0-rings, and press and hold them by tightening each other's stainless steel jig. By using this jig that has been assembled into an adapter with a stainless steel box-type presser lid using a crimping method without an adhesive, the aluminum plate for attaching the test sample container can be replaced with an aluminum plate and bonded to it with an adhesive. The measured measurement sample was made disposable. The metal stainless steel box type gas inlet / outlet pipe and its lid are provided with a groove for fitting a rubber 0-ring. The upper lid for holding the aluminum sheet and the metal stainless steel box type gas inlet / outlet pipe section are provided with eight or more mounting screw parts for equally crimping each other. The sample installation aluminum sheet should be horizontal and have no scratches. The gas inlet and gas outlet of the stainless steel box-type gas inlet / outlet tool are connected by a union joint and connected to the gas barrier measuring device main body. The presser upper lid 2 is of a center cut-out type.

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