WO2021079994A1 - Dispositif de mesure de concentration de gaz dans un récipient d'emballage, machine d'emballage en étant équipée et procédé de mesure de concentration de gaz dans une machine d'emballage - Google Patents

Dispositif de mesure de concentration de gaz dans un récipient d'emballage, machine d'emballage en étant équipée et procédé de mesure de concentration de gaz dans une machine d'emballage Download PDF

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Publication number
WO2021079994A1
WO2021079994A1 PCT/JP2020/039932 JP2020039932W WO2021079994A1 WO 2021079994 A1 WO2021079994 A1 WO 2021079994A1 JP 2020039932 W JP2020039932 W JP 2020039932W WO 2021079994 A1 WO2021079994 A1 WO 2021079994A1
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WIPO (PCT)
Prior art keywords
laser
packaging container
tip
gas
packaging
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PCT/JP2020/039932
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English (en)
Japanese (ja)
Inventor
雅志 大島
Original Assignee
ゼネラルパッカー株式会社
雅志 大島
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Publication of WO2021079994A1 publication Critical patent/WO2021079994A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/61—Non-dispersive gas analysers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/90—Investigating the presence of flaws or contamination in a container or its contents

Definitions

  • the present invention relates to a gas concentration measuring device for a packaging container capable of measuring the concentration of a specific gas in the packaging container, a packaging machine equipped with the gas concentration measuring device, and a method for measuring the gas concentration in the packaging machine.
  • Patent Document 1 describes an inert gas in which an object to be packaged is put into a packaging container and an inert gas is filled from a nozzle inserted into the packaging container to replace the inert gas with oxygen in the packaging container. The filling method is disclosed.
  • Patent Document 2 a measuring method using a laser gas concentration measuring device. ..
  • this laser type gas concentration measuring device measures the gas concentration by measuring the number of gas molecules within a certain distance by utilizing the property that most of the gas molecules absorb light of a specific wavelength. Therefore, the accuracy of the distance of the laser beam passing through the object to be measured (packaging container) is important.
  • the packaging container in which the packaged object is packaged may have a different shape, for example, the distance (the packaging container in which the packaged object is packaged) between the laser emitting portion and the laser receiving portion (the packaging container in which the packaged object is packaged) ( For example, the thickness) may fluctuate, which deteriorates the measurement accuracy.
  • an object of the present invention is a packaging machine and a packaging machine provided with a gas concentration measuring device for a packaging container, in which the measurement accuracy does not deteriorate due to fluctuations in the distance between the laser emitting unit and the laser receiving unit. To provide a method for measuring the gas concentration in the above.
  • a device that solves the above-mentioned problems is a gas concentration measuring device that sequentially measures the concentration of a specific gas in a packaging container that is packed with an object to be packaged and replaced with gas, and emits a laser beam of a specific wavelength.
  • a laser generating unit having a device and a laser receiving unit having a receiver for receiving laser light oscillated from the transmitter are provided, and the laser generating unit and the laser receiving unit face each other on both sides of the packaging container.
  • a gas concentration measuring device for a packaging container which is configured to measure the concentration of a specific gas in the packaging container (claim 1).
  • the gas concentration measuring device of the packaging container has a pair of sandwiches arranged on both sides of the packaging container, and the separation distance between the tip of the laser emitting portion and the tip of the laser receiving portion is a constant distance.
  • the tip of the laser emitting portion and the tip of the laser receiving portion are configured to come into contact with the packaging container, respectively.
  • the laser emitting portion and the laser receiving portion are configured to be relatively close to each other and separated from each other, and between the tip of the laser emitting portion and the tip of the laser receiving portion with respect to the packaging container to be measured sequentially.
  • the tip of the laser emitting portion and the tip of the laser receiving portion may be configured to come into contact with each other of the packaging container by approaching the laser emitting portion so as to have a constant distance (claim 3). ..
  • a device that solves the above-mentioned problems is a gas concentration measuring device that sequentially measures the concentration of a specific gas in a packaging container that is packed with an object to be packaged and replaced with gas, and irradiates a laser beam of a specific wavelength.
  • a laser generator having a transmitter and a laser receiver having a receiver for receiving laser light oscillated from the transmitter are provided, and the laser generator and the laser receiver are located on both sides of the packaging container. It has a laser gas densitometer arranged to face each other, and the laser emitting unit and the laser receiving unit are configured to be relatively close to each other and separated from each other.
  • the packaging is characterized in that the concentration of the specific gas in the packaging container is measured by calculating and correcting a numerical value converted from the measured value at the separation distance to a reference constant distance.
  • a device for measuring the gas concentration of a container (claim 4).
  • the packaging container may be a packaging bag, a bottle, or a resin container (claim 5).
  • a gas concentration measuring method in a packaging machine in which the concentration of a specific gas in a packaging container filled with an object to be packaged and replaced with a gas is sequentially measured by a measuring device.
  • the measuring device includes a laser generator having a transmitter that irradiates a laser beam having a specific wavelength, and a laser receiver having a receiver that receives the laser beam oscillated from the transmitter.
  • a laser gas densitometer in which the laser light receiving part is arranged facing both sides of the packaging container, the packaged object is filled in the packaging container, gas is replaced with an inert gas, and the opening is sealed.
  • the tip of the laser emitting portion and the tip of the laser receiving portion are packaged in a state where the separation distance between the tip of the laser emitting portion and the tip of the laser receiving portion is maintained at a constant distance.
  • the measurement distance of the packaging container between the laser emitting portion and the laser receiving portion of the packaging container, which is sequentially measured is kept constant and the concentration of the specific gas in the packaging container is increased.
  • a method for measuring a gas concentration in a packaging machine which comprises measuring (claim 7).
  • the separation distance between the tip of the laser emitting portion and the tip of the laser receiving portion is maintained at a constant distance with respect to the packaging container to be sequentially measured.
  • the tip of the laser emitting portion and the tip of the laser receiving portion are brought into contact with the packaging container, respectively. It is preferable to have a step (claim 8).
  • the method for measuring the gas concentration in the packaging machine is to approach the packaging container to be sequentially measured so that the distance between the tip of the laser emitting portion and the tip of the laser receiving portion is a constant distance.
  • the tip of the laser emitting portion and the tip of the laser receiving portion may each have a step of contacting the packaging container (claim 9).
  • the measuring device includes a laser generator having a transmitter that irradiates a laser beam of a specific wavelength, and a laser receiver having a receiver that receives the laser beam oscillated from the transmitter.
  • a laser gas densitometer in which the laser receiving part is arranged so as to face both sides of the packaging container, the packaging container is filled with an object to be packaged, gas is replaced with an inert gas, and the opening is sealed.
  • the tip of the laser emitting portion and the tip of the laser receiving portion are brought into contact with the packaging container, respectively, and the tip of the laser emitting portion is contacted.
  • the concentration of the specific gas in the packaging container is measured by measuring the separation distance between the tips of the laser receiving unit, calculating a value converted from the measured value at the separation distance to a reference constant distance, and correcting the value. It is a method for measuring a gas concentration in a packaging machine, which is characterized in that the method is used (claim 10).
  • the tip of the laser emitting portion is maintained at a constant distance between the tip of the laser emitting portion and the tip of the laser receiving portion.
  • the measurement distance of the packaging container between the laser light emitting part and the laser light receiving part of the packaging container to be measured sequentially is kept constant, so that the laser light emitting part There is no variation in the distance between the laser receiver and the object to be measured, and the measurement accuracy does not deteriorate.
  • the packaging container gas concentration measuring device capable of more reliably achieving the effect of claim 1 can be configured with a simple structure.
  • the packaging container gas concentration measuring device capable of more reliably achieving the effect of claim 1 can be configured with another simple structure.
  • the gas concentration measuring device for a packaging container according to claim 4 a state in which the tip of the laser emitting portion and the tip of the laser receiving portion are in contact with the packaging container to be sequentially measured. Then, the separation distance between the tip of the laser emitting part and the tip of the laser receiving part is measured, and the value converted from the measured value at the separation distance to a reference constant distance is calculated and corrected. The measurement accuracy does not deteriorate even if the distance of the object to be measured fluctuates between the laser receiving unit.
  • the effects of claims 1 to 4 can be exerted on various types of packaging containers.
  • the packaging machine provided with the gas concentration measuring device for the packaging container according to claim 6 comprises a packaging machine that exhibits the effects of claims 1 to 5.
  • the tip of the laser emitting portion and the tip of the laser emitting portion are maintained in a state where the separation distance between the tip of the laser emitting portion and the tip of the laser receiving portion is maintained at a constant distance.
  • the effect of claim 7 can be more reliably achieved.
  • the effect of claim 7 can be more easily and surely achieved.
  • the tip of the laser emitting portion and the tip of the laser receiving portion are in contact with the packaging container, respectively, with respect to the packaging container to be measured sequentially.
  • the laser emitting part and the measurement accuracy does not deteriorate even if the distance between the laser receiving parts and the object to be measured fluctuates.
  • FIG. 1 It is a front view of an Example of the gas measuring apparatus of the packaging container of this invention arranged in a packaging machine. It is explanatory drawing for demonstrating the laser type gas densitometer in the gas concentration measuring apparatus of the packaging container shown in FIG. It is a top view of the plan of the packaging machine provided with the gas concentration measuring device of the packaging container shown in FIG.
  • the tip of the laser emitting portion 33 and the tip of the laser receiving portion 33 are maintained at a constant distance between the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33.
  • the measurement distance of the packaging container H between the laser emitting unit 31 and the laser receiving unit 33 of the packaging container H to be sequentially measured is kept constant, so that the laser emission is performed.
  • a gas concentration measuring device G for a packaging container in which the distance between the unit 31 and the laser receiving unit 33 does not fluctuate and the measurement accuracy does not deteriorate, a packaging machine P equipped with the gas concentration measuring device G, and a gas concentration measuring method in the packaging machine. was realized.
  • the gas concentration measuring device for the packaging container of the present invention will be described with reference to an embodiment shown in FIG. 1 or FIG.
  • the gas concentration measuring device G of the packaging container of this embodiment is a gas concentration measuring device that sequentially measures the concentration of a specific gas in the packaging container H that is packed with the object to be packaged and replaced with gas, and has a specific wavelength.
  • a laser generator 31 having a transmitter 30 for irradiating the laser beam of the above, and a laser receiver 33 having a receiver 32 for receiving the laser beam oscillated from the transmitter 30, the laser generator 31 and the laser receiver.
  • the 33 has a laser gas densitometer M arranged to face both sides of the packaging container H, and the separation distance between the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 is a constant distance.
  • the tip portion 31a of the laser emitting portion 33 and the tip portion 33a of the laser receiving portion 33 are brought into contact with the packaging container H, respectively, so that the laser emitting portion 31 and the laser of the packaging container H measured sequentially are measured.
  • the measurement distance of the packaging container H between the light receiving units 33 is kept constant, and the concentration of the specific gas in the packaging container H is measured.
  • the gas concentration measuring device of this embodiment sequentially measures the concentration of a specific gas in the packaging container H in which the object to be packaged is filled and replaced with gas.
  • the gas concentration measuring device G of the packaging container of this embodiment lasers the oxygen concentration which is a specific gas in the packaging container H packaged by replacing the gas with an inert gas such as nitrogen or carbon dioxide. It is measured by the type gas densitometer M, and is used as a stand-alone measuring device or installed in the inspection process of various packaging machines such as a rotary type gas filling and packaging machine.
  • the packaging container may be a packaging bag H as in this embodiment, or may be a bottle or a resin container.
  • the laser gas densitometer M has a laser generator 31 having a transmitter 30 that irradiates a laser beam having a specific wavelength, and a receiver that receives the laser beam oscillated from the transmitter 30.
  • a laser receiving unit 33 having a vessel 32 is provided, and the laser generating unit 31 and the laser receiving unit 33 are arranged so as to face each other on both sides of the packaging container H.
  • the laser gas densitometer M uses infrared absorption spectroscopy using a semiconductor laser as a light source. When light of a specific frequency is given to a molecule to be measured, it absorbs light energy and measures the gas concentration. It is for displaying.
  • the laser gas densitometer M has a configuration as shown in FIG. 2, and includes a laser generating unit 31 and a laser receiving unit 33.
  • the laser generator 31 has a function of generating laser light of a specific wavelength and irradiating the measurement gas via the fiber cable 75, and supplies a stable power supply to the laser diode, the power supply unit 71 and the laser diode. It is composed of a cooler unit 72 for stabilizing the wavelength and its intensity of the laser beam output from the laser beam, and a temperature controller 73 for keeping the temperature of the cooler of the cooler unit 72 constant.
  • the laser light receiving unit 33 has a function of measuring the intensity of the laser light absorbed by the measuring gas via the fiber cable 82 and outputting the gas concentration from the intensity, and the laser light emitted from the laser generating unit 31.
  • the laser beam having a specific wavelength emitted from the transmitter 30 is selected from the wavelength (inherent frequency) range of 760 to 770 nm.
  • a reflection prism may be used as shown in FIG.
  • Reference numeral 77 denotes a detection unit that is irradiated from the transmitter 30, passes through the measurement gas, converts the laser light caught through the receiver (reflection prism) 32 into an electric current, and outputs the laser light to the measurement / display unit 81.
  • the laser emitting unit is in a state where the separation distance between the tip portion 31a of the laser emitting unit 31 and the tip portion 33a of the laser receiving unit 33 is maintained at a constant distance.
  • the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 of this embodiment are configured to be relatively close to each other and separated from each other.
  • the laser emitting unit 31 of this embodiment is fixed to the cylinder base 34, and the cylinder 35 is arranged below the cylinder base 34.
  • the cylinder 35 causes the cylinder base 34 and the laser emitting unit 31 to emit light.
  • the tip portion 31a of the above is configured to be reciprocating to the left and right in FIG.
  • the laser receiving portion 33 of this embodiment is fixed to the cylinder base 36, and the cylinder 37 is arranged below the cylinder base 36.
  • the cylinder 37 causes the tip portions of the cylinder base 36 and the laser receiving portion 33.
  • 33a is configured to be able to reciprocate left and right in FIG.
  • the tip 31a of the laser emitting unit 31 and the tip 33a of the laser receiving unit 33 of this embodiment are configured to be relatively close to each other and separated by the action of the cylinder 35 and the cylinder 37 as described above. Due to these actions, the separation distance between the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 can be maintained at a set constant distance.
  • the gas concentration measuring device for the packaging container of the present invention is not limited to this, and the laser emitting portion has a fixed arrangement position of the tip of the laser emitting portion and the tip of the laser receiving portion. The separation distance between the tip portion and the tip portion of the laser receiving portion may be maintained at a constant distance.
  • the tip surfaces of the laser emitting unit 31 and the laser receiving unit 33 are open, and the inside of the laser paths 31b and 33b of the laser emitting unit 31 and the laser receiving unit 33 is after contacting the packaging container H and before laser irradiation. It is preferable that a suction mechanism (not shown) is provided so as to create a vacuum atmosphere. Further, a tank (not shown) filled with nitrogen gas is attached to the laser paths 31b and 33b via a flow rate adjusting valve (not shown) and a flow meter (not shown), and the nitrogen gas is supplied to supply the laser path.
  • the residual oxygen rate in 31b and 33b may be set to almost 0% to further improve the measurement accuracy.
  • the paired holding bodies 38 and 39 are for bringing the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 into contact with the packaging container H, respectively. As shown, they are arranged below the laser emitting unit 31 or the laser receiving unit 33 and on both sides of the packaging container H, respectively.
  • the holding body 39 is configured to be reciprocating in the left-right direction in FIG. 1 by the cylinder 40, and when the holding body 39 moves in the left direction in FIG. 1, both sides near the bottom of the packaging container H are the holding bodies 38, 39.
  • the upper part of the packaging container H expands in the left-right direction due to this action, and the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 are respectively in contact with the packaging container H. Has been done.
  • the packaging container H is sandwiched between the pair of holding bodies 38 and 39 in a state where the separation distance between the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 is maintained at a constant distance.
  • the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 come into contact with the packaging container H, respectively, so that between the laser emitting portion 31 and the laser receiving portion 33 of the packaging container H to be sequentially measured.
  • the measurement distance of the packaging container H is kept constant. As a result, the distance between the laser emitting unit 31 and the laser receiving unit 33 does not fluctuate, and the measurement accuracy can be improved.
  • the gas concentration measuring device for the packaging container of the present invention is not limited to this, and does not have a pair of holding bodies 38 and 39 for sandwiching the packaging container H, and the laser emitting unit 31 and the laser receiving unit 33 do not have.
  • the distance between the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 is a constant distance with respect to the packaging container H to be measured sequentially.
  • the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 may be configured to come into contact with each other of the packaging container H.
  • the gas concentration measuring device of this embodiment is a gas concentration measuring device that sequentially measures the concentration of a specific gas in a packaging container H that is packed with an object to be packaged and replaced with gas, and emits laser light of a specific wavelength.
  • a laser generator 31 having a transmitter 30 to irradiate and a laser receiver 33 having a receiver 32 to receive the laser light oscillated from the transmitter 30 are provided, and the laser generator 31 and the laser receiver 33 are packaged.
  • a packaging container having a laser gas densitometer M arranged opposite to each other on both sides of the container H, the laser emitting unit 31 and the laser receiving unit 33 are configured to be relatively close to each other and separated from each other, and are sequentially measured.
  • the tip 31a of the laser emitting portion 31 and the tip 33a of the laser receiving portion 33 are in contact with the packaging container H, respectively, and the tip 31a of the laser emitting portion 31 and the tip of the laser receiving portion 33 are brought into contact with each other.
  • the concentration of the specific gas in the packaging container H is measured by measuring the separation distance between the portions 33a, calculating a value converted from the measured value at the separation distance into a reference constant distance, and correcting the value.
  • the same components as those of the gas concentration measuring device G described above are designated by the same reference numerals and the description thereof will be omitted.
  • the difference between the gas concentration measuring device of this embodiment and the gas concentration measuring device G described above is that in the gas concentration measuring device G, the separation distance between the tip 31a of the laser emitting unit 31 and the tip 33a of the laser receiving unit 33 Is held at a certain distance, the tip portion 31a of the laser emitting portion 33 and the tip portion 33a of the laser receiving portion 33 are brought into contact with the packaging container H, respectively.
  • the packaging container H to be sequentially measured is brought into contact with each other.
  • the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 are moved according to the different widths (w) of the object to be measured (packaging container H) each time. To abut.
  • the separation distance between the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 is measured, and a numerical value converted from the measured value at the separation distance into a reference constant distance is calculated. It is configured so that the concentration of the specific gas in the packaging container H is measured by the correction.
  • the movement of the laser emitting unit 31 and the laser receiving unit 33 corresponding to the different widths (w) of the object to be measured (packaging container H) is such that the different widths (w) of the objects to be measured (packaging container H) are moved by a position sensor or the like. Is preferable, and a method of reciprocating the laser emitting unit 31 and the laser receiving unit 33 based on the detected value, a method of using a servomotor, or the like is preferable.
  • the separation distance between the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 is, for example, the laser receiving distance between the tip portion 31a of the laser emitting portion 31 by the cylinders 35 and 37 and the laser receiving portion 31a.
  • the gas concentration can be measured with high accuracy while remaining different. It is configured as follows.
  • the packaging machine P of this embodiment is a rotary gas filling and packaging machine as shown in FIG. 1 or FIG.
  • This packaging machine P has a bag feeding process (1), a printing process such as an expiration date (2), a packaging bag opening process (3), an object filling process (4), a pushing process (5), and a nozzle insertion. And 16 steps of temporary attachment seal process (6), gas replacement / fir hogushi process (7) to (13), top seal process (14), seal cooling / gas replacement detection process (15), product take-out process (16).
  • a stand 53 that freely rotates an intermittent rotating shaft (not shown) in a vertical direction is provided, and a disk-shaped rotating body (moving body) 52 attached to the intermittent rotating shaft is provided. Is provided so that 16 grips to g for gripping or releasing the packaging bag H, which is a packaging container, project in the radial direction at equal angular intervals.
  • reference numeral 41 is a sealing device.
  • the gas concentration measuring device G for the packaging container is arranged in the seal cooling / gas replacement detection step (15).
  • the wrapping machine P of this embodiment is a rotary wrapping machine that intermittently drives a moving body (disk-shaped rotating body) 52, but the wrapping machine of the present invention is not limited to this, and is known for linear movement.
  • a type (truck method) packaging machine may be used.
  • a linearly moving bag wrapping machine is, for example, a moving body that horizontally moves in an annular passage consisting of a straight portion and semicircular portions at both ends thereof, and is provided with a large number of grip pairs that can be freely converted into an upright posture or a horizontal posture.
  • the packaging bag supplied in the process is supported by each grip pair, and the packaging bag is intermittently stopped in each process such as the opening process, the filling process, and the bag mouth sealing process to pack the packaged object. It refers to a structure.
  • the wrapping machine of the present invention may be a vertical pillow wrapping machine that fills and wraps the object to be packaged in the bag while making a sheet-shaped film, and the gas of the wrapping container is applied to the product discharge path of the wrapping machine.
  • the concentration measuring device G may be arranged.
  • the wrapping machine of the present invention may be a horizontal pillow wrapping machine that fills and wraps the object to be packaged in the bag while making a sheet-shaped film, and is above the conveyor, which is a product discharge path of the wrapping machine.
  • the gas concentration measuring device G of the packaging container may be arranged in the package.
  • the wrapping machine of the present invention may be a bottling wrapping machine that fills and wraps a beverage or the like in a bottle i, and the packaging container is located above the conveyor through which the bottle i in the vertical orientation is passed and near the product discharge path.
  • the gas concentration measuring device G may be arranged.
  • the concentration of a specific gas in the packaging container H filled with the object to be packaged and replaced with gas is sequentially measured by a measuring device (laser type gas concentration meter M).
  • the measuring device (laser type gas densitometer M) is oscillated from a laser generator 31 having a transmitter 30 that irradiates a laser beam of a specific wavelength and a transmitter 30.
  • a laser gas densitometer M provided with a laser light receiving unit 33 having a receiver 32 for receiving laser light, and a laser generating unit 31 and a laser receiving unit 33 arranged to face each other on both sides of the packaging container H.
  • the separation distance between the tip 31a of the laser emitting portion 31 and the tip 33a of the laser receiving portion 33 is increased.
  • the laser emitting portion 31 of the packaging container H is sequentially measured by bringing the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 into contact with each other while being held at a fixed distance.
  • the gas concentration measuring method in the packaging machine of this embodiment will be described, but the same components as those of the gas concentration measuring device G of the packaging container described above are designated by the same reference numerals and the description thereof will be omitted.
  • the laser emitting unit 31 whose arrangement position is fixed in a state where both upper sides of the packaging container H are supported by the grip vs. g of the packaging machine P and the vertical posture is maintained.
  • the holding body 39 moves to the left in FIG. Both sides are sandwiched by the sandwiching bodies 38 and 39.
  • the upper part of the packaging container H expands in the left-right direction, and the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 abut on the packaging container H, respectively, so that the laser emitting portion 31 and the laser are used.
  • the measurement distance of the packaging container H between the light receiving portions 33 is kept constant.
  • the method for measuring the gas concentration in the packaging machine of the present invention is not limited to this, and the distance between the tip of the laser emitting portion and the tip of the laser receiving portion with respect to the packaging container to be sequentially measured is not limited to this.
  • the step of bringing the tip of the laser emitting portion and the tip of the laser receiving portion into contact with the packaging container may be provided by approaching them so as to have a certain distance.
  • the concentration of a specific gas in the packaging container H filled with the object to be packaged and replaced with gas is sequentially measured by a measuring device (laser type gas concentration meter M).
  • a measuring device laser type gas concentration meter M
  • Packaging using a laser gas densitometer M including a laser light receiving unit 33 having a receiver 32 for receiving light, and a laser generating unit 31 and a laser receiving unit 33 arranged to face each other on both sides of the packaging container H.
  • the gas concentration measuring method in the packaging machine of this embodiment will be described, but the same components as those of the gas concentration measuring device G of the packaging container described above are designated by the same reference numerals and the description thereof will be omitted.
  • the tip portion 31a of the laser emitting unit 31 and the laser receiving light are received in a state where both upper sides of the packaging container H are supported by the grip pair g of the packaging machine P and the vertical posture is maintained.
  • the tip portion 31a of the laser light emitting portion 31 and the laser are used according to the different widths (w) of the object to be measured (packaging container H).
  • the tip portion 33a of the light receiving portion 33 moves by the action of the cylinders 35 and 37 and comes into contact with the packaging container H.
  • the separation distance between the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 is measured, and a numerical value converted from the measured value at the separation distance into a reference constant distance is calculated.
  • the concentration of the specific gas in the packaging container H is measured.
  • the separation distance between the tip portion 31a of the laser emitting portion 31 and the tip portion 33a of the laser receiving portion 33 is, for example, the tip portion 31a of the laser emitting portion 31 and the tip portion of the laser receiving portion 33 by the cylinders 35 and 37.
  • measured value reference constant distance
  • gas concentration X converted and corrected value
  • the gas concentration can be measured with high accuracy while remaining different. It is configured as follows.
  • the movement of the laser emitting unit 31 and the laser receiving unit 33 corresponding to the different widths (w) of the object to be measured (packaging container H) is such that the different widths (w) of the objects to be measured (packaging container H) are moved by a position sensor or the like. Is preferable, and a method of reciprocating the laser emitting unit 31 and the laser receiving unit 33 based on the detected value, a method of using a servomotor, or the like is preferable.
  • G Gas concentration measuring device for packaging container M Laser gas concentration meter P Packaging machine H Packaging container g Grip pair 30 Transmitter 31 Laser transmitter 31a Laser emitter tip 32 Receiver 33 Laser receiver 33a Laser receiver tip Part 34 Cylinder base 35 Cylinder 36 Cylinder base 37 Cylinders 38, 39 Paired sandwiches 40 Cylinder 41 Sealing device 51 Machine stand 52 Disc-shaped rotating body (moving body) 53 stand

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Abstract

Le problème décrit par la présente invention est de fournir un dispositif de mesure de concentration de gaz dans un récipient d'emballage permettant d'éviter toute détérioration de précision de mesure due à une variation de la distance par rapport à un objet mesuré entre une partie d'émission de lumière laser et une partie de réception de lumière laser. L'invention concerne une machine d'emballage équipée dudit dispositif et un procédé de mesure de la concentration de gaz dans ladite machine d'emballage. La solution apportée par la présente invention est un dispositif de mesure de concentration de gaz dans un récipient d'emballage G, dans lequel une partie d'extrémité de pointe 31a d'une partie d'émission de lumière laser 33 et une partie d'extrémité de pointe 33a d'une partie de réception de lumière laser 33 sont chacune mises en contact avec un récipient d'emballage H, la séparation entre la partie d'extrémité de pointe 31a de la partie d'émission de lumière laser 31 et la partie d'extrémité de pointe 33a de la partie de réception de lumière laser 33 étant maintenue à une distance fixe, ce qui permet de maintenir une distance de mesure fixe par rapport au récipient d'emballage H entre la partie d'émission de lumière laser 31 et la partie de réception de lumière laser 33, d'éliminer les variations de la distance par rapport à l'objet en cours de mesure entre la partie d'émission de lumière laser et la partie de réception de lumière laser et d'éliminer toute détérioration de précision de mesure.
PCT/JP2020/039932 2019-10-24 2020-10-23 Dispositif de mesure de concentration de gaz dans un récipient d'emballage, machine d'emballage en étant équipée et procédé de mesure de concentration de gaz dans une machine d'emballage WO2021079994A1 (fr)

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JP2019193362A JP2021067563A (ja) 2019-10-24 2019-10-24 包装容器のガス濃度測定装置、それを備えた包装機および包装機におけるガス濃度測定方法
JP2019-193362 2019-10-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022239759A1 (fr) * 2021-05-10 2022-11-17 ゼネラルパッカー株式会社 Procédé de mesure de la concentration de gaz dans un sac d'emballage d'oreiller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009014589A (ja) * 2007-07-06 2009-01-22 General Packer Co Ltd 包装機におけるガス濃度測定方法
JP2010038846A (ja) * 2008-08-08 2010-02-18 Hitachi Zosen Corp 袋状容器内における酸素濃度の非破壊検査装置
JP2010107197A (ja) * 2008-10-28 2010-05-13 General Packer Co Ltd 包装袋のガス濃度測定装置
JP2016520838A (ja) * 2013-05-27 2016-07-14 ガスポロックス エービー 容器中の気体の濃度を判定するためのシステムおよび方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7210442B2 (ja) * 2016-11-04 2023-01-23 ヴィルコ・アーゲー ガスの濃度を測定するための方法および装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009014589A (ja) * 2007-07-06 2009-01-22 General Packer Co Ltd 包装機におけるガス濃度測定方法
JP2010038846A (ja) * 2008-08-08 2010-02-18 Hitachi Zosen Corp 袋状容器内における酸素濃度の非破壊検査装置
JP2010107197A (ja) * 2008-10-28 2010-05-13 General Packer Co Ltd 包装袋のガス濃度測定装置
JP2016520838A (ja) * 2013-05-27 2016-07-14 ガスポロックス エービー 容器中の気体の濃度を判定するためのシステムおよび方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022239759A1 (fr) * 2021-05-10 2022-11-17 ゼネラルパッカー株式会社 Procédé de mesure de la concentration de gaz dans un sac d'emballage d'oreiller

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