JP4869682B2 - Packaging and filling machine - Google Patents

Description

  The present invention relates to a packaging material and a filling machine.

  Conventionally, when manufacturing a flowable food such as milk and soft drinks, for example, a packaging container containing liquid food, a filling machine has been used, and a predetermined molding is performed on the packaging material in the filling machine. Done and filled with liquid food.

  When manufacturing a brick type packaging container, a web-like packaging material made of a flexible laminated material is formed into a tube shape, and liquid food is filled into the tube-shaped packaging material. Yes.

  For this purpose, first, the packaging material is sealed in a vertical direction to form a tube shape, and the tube-shaped packaging material is continuously conveyed, while liquid food is supplied into the packaging material from above and filled. Next, the packaging material is sandwiched by sealing jaws from both sides, and sealed in a transverse direction at predetermined intervals.

  Subsequently, the laterally sealed portion (hereinafter referred to as “horizontal seal portion”) is cut to form a prototype container having a rectangular shape such as a pillow shape or a bag shape, When the original container is molded into a predetermined shape, a plurality of packaging containers that contain a certain amount of liquid food are completed.

  In the case of a gable top type packaging container, the packaging material is cut into a predetermined shape and then sealed in the vertical direction to form a cylindrical body (blanks) having a rectangular cross section. Subsequently, the bottom is formed by a molding device to form a bottomed cylindrical body, that is, a bottomed cylindrical body, and after filling the liquid food into the bottomed cylindrical body, the top portion is sealed, Completed.

  Furthermore, when manufacturing a paper composite type packaging container in which the lid (lid) is formed by plastic molding, the packaging material is cut into a predetermined shape, and then sealed in the vertical direction to form a cylinder with a rectangular cross section. Form the body. Subsequently, a bottom is formed by a molding device to form the cylindrical body as a bottomed cylindrical body, and after filling the liquid food into the bottomed cylindrical body, a lid is formed on the top portion by plastic molding, The container is completed.

  By the way, when manufacturing a brick type packaging container, the tube-shaped packaging material is sealed in the lateral direction, the lateral seal portion is cut, and a gable top type packaging container and a paper composite type packaging container are used. In the case of manufacturing the packaging material, the packaging material is cut and various treatments are performed on the packaging material. And in order to determine processing positions, such as a position to seal and a position to cut or cut, it is necessary to position the packaging material.

For this purpose, a barcode-like positioning mark is printed at a predetermined position of the packaging material, the mark is optically detected by a sensor, and the packaging material is positioned based on the detection result. In addition, the said mark is printed together when printing designs, such as a character, a symbol, and a design pattern, on the outer surface of a packaging material (for example, refer patent document 1).
JP-A-10-329803

  However, in the conventional packaging material, a design printed on the outer surface of the packaging material, for example, a design pattern may be erroneously detected as the mark, and in this case, the packaging material is accurately positioned. This makes it impossible to accurately determine a sealing position, a cutting or cutting position, and the like.

  The present invention solves the problems of the conventional packaging material, can accurately position the packaging material, and can accurately determine a sealing position, a cutting or cutting position, and the like. An object is to provide a filling machine.

  Therefore, in the packaging material of the present invention, a detection mark is formed on the outer surface, and a predetermined processing is performed in a filling machine to become a packaging container.

The detection mark includes a first mark element group including a plurality of mark elements, and a second mark provided in parallel to the first mark element group. An element group is provided and detected optically.
In the first and second mark element groups, at least a predetermined mark element of each mark element is formed of a magnetic material, and is detected optically and magnetically. The predetermined mark element By detecting this magnetically, erroneous detection in optical detection is prevented.

  According to the present invention, a detection mark is formed on the outer surface of the packaging material, and a predetermined processing is performed in the filling machine to form a packaging container.

The detection mark includes a first mark element group including a plurality of mark elements, and a second mark provided in parallel to the first mark element group. An element group is provided and detected optically.
In the first and second mark element groups, at least a predetermined mark element of each mark element is formed of a magnetic material, and is detected optically and magnetically. The predetermined mark element By detecting this magnetically, erroneous detection in optical detection is prevented.

  In this case, in the first and second mark element groups, at least a predetermined mark element of each mark element is formed of a magnetic material and detected optically and magnetically. A design printed on the outer surface for exterior use is not erroneously detected as a detection mark for positioning. As a result, the packaging material can be accurately positioned, and the position for sealing in the lateral direction, the position for cutting or cutting, and the like can be determined accurately.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this case, a case where a brick type packaging container among the packaging containers is manufactured will be described.

  FIG. 2 is a conceptual diagram of the filling machine in the embodiment of the present invention.

  In the figure, reference numeral 10 denotes a web-like packaging material. The packaging material 10 is accommodated in a cassette 32 in the state of a reel 31, and is set in a magazine area (not shown) of the filling machine, that is, a delivery unit via the cassette 32. Is done. The packaging material 10 is composed of a paper base material and a flexible laminate in which a film of a resin, for example, a polyethylene resin, is coated on both sides of the paper base material. A barrier layer made of aluminum foil (gas foil), gas barrier resin, or the like is formed between them, and exterior printing is applied in advance to a portion corresponding to the surface of the packaging container.

  The packaging material 10 fed out from the delivery section by a feeding machine (not shown) is intermittently conveyed in the direction of arrow A by a feeding device (not shown) as a conveying means, and is stripped via a bending roller r1, a damper roller r2, and the like. The strip tape 34 is stuck along one edge of the packaging material 10 by the strip tape sticking device 33.

  Subsequently, the packaging material 10 is sent to the sheet tensioner 35 via the bending rollers r3 and r4, and then sent to the bending roller r5. In the meantime, punching is performed by a punching device 37 to form a punch hole at a predetermined location of the packaging material 10 to be conveyed, and a pull tab is attached from the outside of the packaging material 10 to the packaging material 10 by the sticking device 38. A patch film is applied from the inside of the punch hole, and the punch hole is sealed from the outside and the inside. For this purpose, a supply device 39 is arranged between the punch device 37 and the sticking device 38, in which the pull tab is supplied from above the packaging material 10 and the patch film is supplied from below the packaging material 10. Is done. An inner film is constituted by the strip tape, patch film or the like.

  Subsequently, the packaging material 10 is sent to the sterilization tank 61 through the paper tensioner 43 and bending rollers r6 and r7, and is immersed in a sterilization liquid such as hydrogen peroxide in the sterilization tank 61 to be sterilized. Reference numeral 62 denotes a bottom tray for storing the sterilizing liquid.

  Thereafter, the packaging material 10 is sent to the air knife 45 via the calendar roller r8, dried by the air knife 45, and then sent to the upper forming ring 48 via the bending roller r9, the crease roller r10 and the bending roller r11. . The packaging material 10 is gradually deformed into a tube shape by forming rollers such as the upper molding ring 48, the movable molding ring 49, the split molding ring 50, the lower molding ring 51, etc. The packaging material 10 is filled with a fluid food such as a liquid food supplied through the filling pipe 52.

  Subsequently, the packaging material 10 is guided by the tube support roller r12 and sent to the sealing / cutting portion p1, and the sealing / cutting portion p1 is preliminarily molded into a pillow shape by a folding flap (not shown), It is sandwiched by a sealing / cutting device (not shown), sealed in the horizontal direction by a horizontal sealing device at predetermined intervals, and cut by a cutter to form a pillow-shaped prototype container 36. The prototype container 36 is conveyed by a final molding and conveying apparatus (not shown) and is molded into a predetermined shape, thereby completing a packaging container that contains a certain amount of liquid food.

  By the way, in the filling machine of the said structure, the position of the packaging material 10 is detected in the preset location, and the various process with respect to the packaging material 10 is performed according to the detected position. For this purpose, a sensor is provided, which detects a register mark as a detection mark printed on the outer surface of the packaging material 10, generates a sensor output, and sends it to a filling machine controller as a controller. I am trying to send it.

  Next, operation | movement of this filling machine control part is demonstrated.

  FIG. 1 is a diagram showing an outer surface of a packaging material on which a register mark is printed according to an embodiment of the present invention, and FIG. 3 is a conceptual diagram showing a control device for a filling machine according to an embodiment of the present invention.

In the figure, reference numeral 10 denotes a packaging material, and register marks m are printed at a predetermined pitch on a predetermined portion of the packaging material 10, in this embodiment, on an edge of the packaging material 10. The register mark m is made of a magnetic material that is easily magnetized. As the magnetic material, a magnetic ink in which a magnetic compound such as Fe ₂ O ₃ , Fe ₃ O ₄ , or barium ferrite is kneaded into a resin such as urethane is used. can do.

  Then, the register mark m is printed by applying the magnetic ink to the outer surface of the packaging material 10 by using a generally known printing technique such as silk screen printing, offset printing, gravure printing, or coating technique. Can be formed. In this case, a predetermined color, for example, a black pigment is added to the magnetic ink, and the register mark m can be detected optically as well as magnetically.

  The register mark m includes first and second mark element groups 63 and 64, and the first mark element group 63 is formed in parallel with each other at a predetermined pitch in the conveyance direction of the packaging material 10. The second mark element group 64 includes a plurality of mark elements m <b> 1 to m <b> 3, and extends in the width direction of the packaging material 10 at a predetermined pitch and in parallel with each other in the conveyance direction of the packaging material 10. The mark elements m1 to m3 and the mark elements m4 to m7 are formed at different positions in the transport direction. Note that n1 to n3 are mark elements that extend in the vertical direction and represent both ends of the first and second mark element groups 63 and 64.

  Also, 20 is a filling machine, 21 is a filling machine control unit, 23 is a horizontal sealing device, 24 is a cutter, 25 is a sensor as a first position detection unit for detecting the register mark m, and 26 is a register mark m. A sensor as a second position detection unit for detection, 28 is a display unit, 29 is an operation unit, 31 is a reel, and P is a packaging container. The horizontal sealing device 23 and the cutter 24 constitute a sealing / cutting device 22. The sensor 25 is an optical sensor that optically detects the register mark m, and the sensor 26 is a magnetic sensor that magnetically detects the register mark m. Since the sensors 25 and 26 need to detect the first and second mark element groups 63 and 64 independently of each other, both are formed by two sensor portions.

  The filling machine controller 21 reads sensor outputs sent from the sensors 25 and 26 and performs various processes based on the sensor outputs. For this purpose, a positioning processing means (not shown) of the filling machine control unit 21 performs positioning processing, reads the sensor outputs of the two sensor units sent from the sensor 25, and each mark element m1 of the first mark element group 63. ~ M3 edge and the edge of each mark element m4 ~ m7 of the second mark element group 64 are compared, and the position of the packaging material 10 is optically detected based on the comparison result, that is, the edge deviation. To do.

  Further, the positioning processing means reads the sensor outputs of the two sensor portions sent from the sensor 26, and the edges of the mark elements m1 to m3 of the first mark element group 63 and the second mark element group. 64 edges of the mark elements m4 to m7 are compared, and the position of the packaging material 10 is magnetically detected based on the edge shift.

  Subsequently, the positioning processing unit compares the position of the packaging material 10 detected optically with the position of the packaging material 10 detected magnetically, and determines whether the position of the packaging material 10 matches. If they match, positioning is performed by determining the position of the packaging material 10. If they do not match, the not-shown notification processing means of the filling machine control unit 21 performs notification processing and displays the packaging material 10 on the display unit 28. A message indicating that the position has not been detected is displayed and the operator is notified.

  Since the register mark m can be detected magnetically in this way, a design printed on the outer surface of the packaging material 10, for example, a design pattern, can be erroneously detected as the register mark m. Disappear. Therefore, positioning of the packaging material 10 can be performed accurately, and a position for sealing in the lateral direction, a position for cutting or cutting, and the like can be accurately determined.

  Further, since the register mark m is detected optically and magnetically, the register mark m can be detected more accurately, and the position for sealing in the lateral direction, the position for cutting, etc. are determined more accurately. be able to.

  In this way, when a position for sealing in the lateral direction, a position for cutting, and the like are detected, a sealing processing unit (not shown) of the filling machine control unit 21 performs a sealing process and sends a command to the sealing / cutting device 22. The packaging material 10 is sealed in the horizontal direction by the horizontal sealing device 23. A cutting processing unit (not shown) of the filling machine control unit 21 performs a cutting process, sends a command to the sealing / cutting device 22, and cuts the packaging material 10 by the cutter 24.

  By the way, a magnetic recording medium layer can be formed of a magnetic material for forming the register mark m, and various information can be magnetically recorded on the magnetic recording medium layer.

  In this case, the various types of information include packaging material information that is information about the packaging material 10 and packaging container information that is information about the packaging container P. The magnetic recording medium layer includes the packaging material information and the packaging container information. At least one is recorded. The packaging material information includes, for example, specifications such as the material or dimensions of the packaging material 10, a packaging material processing machine, a molding method of the packaging material 10, and liquid food filled in the packaging container P. The packaging container information includes, for example, the expiration date of the liquid food, the manufacturer of the packaging container P, the manufacturing lot, the manufacturing date and time, the manufacturing location, the manufacturing order, the filling machine number, and the like.

  Therefore, when the sensor output of the sensor 26 is sent to the filling machine control unit 21, the information acquisition processing unit (not shown) of the filling machine control unit 21 performs the information acquisition process, and based on the sensor output of the sensor 26, Information such as packaging material information and packaging container information is read and acquired.

  In this case, since it is not necessary to record information such as the packaging material information and the packaging container information on the outer surface of the packaging container P by printing or the like, it is possible to use the space for exterior printing for other purposes. it can. Therefore, the appearance of the packaging container P can be improved.

  In the present embodiment, the information such as the packaging material information and the packaging container information is recorded by the recording device at the stage of manufacturing the packaging material 10, but the recording device is disposed in the filling machine 20 to record the information. Predetermined information can be recorded by the device.

  In the present embodiment, the entire first and second mark element groups 63 and 64 of the register mark m are formed of a magnetic material. Only a part of the groups 63 and 64 can be formed of a magnetic material.

  In that case, for example, only the mark element m2 of the first mark element group 63 and the mark element m6 of the second mark element group 64 are formed of a magnetic material. Then, the positioning processing means reads the sensor outputs of the two sensor units sent from the sensor 26, and the edge of the mark element m 2 of the first mark element group 63 and the mark of the second mark element group 64. The edge of the element m6 is compared, and the position of the packaging material 10 is magnetically detected based on the edge shift.

  When the magnetic recording medium layer is formed by the magnetic material forming the register mark m, the magnetic recording medium layer is formed on the mark elements m2 and m6, and various information is magnetically recorded on the magnetic recording medium layer. The

  Further, when a magnetic recording medium layer is formed on each of the mark elements m1 to m7, the mark element m7 confirms the start of reading of information at the reading start position. The information read to confirm the end of reading and recorded in a memory (not shown) is used to confirm that the information is correct.

  In this embodiment, the case of manufacturing a brick type packaging container among the packaging containers is described. However, the present invention is applied to the case of manufacturing a gable top type packaging container and a paper composite type packaging container. Can be applied.

  In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

It is a figure which shows the outer surface of the packaging material in which the register mark in embodiment of this invention was printed. It is a conceptual diagram of the filling machine in embodiment of this invention. It is a conceptual diagram which shows the control apparatus of the filling machine in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Packaging material 20 Filling machine 21 Filling machine control part 25, 26 Sensor 63, 64 1st, 2nd mark element group m Register mark P Packaging container

Claims (4)

In the packaging material in which a detection mark is formed on the outer surface and a predetermined processing is performed in the filling machine to become a packaging container,
(A) the detection mark, the first mark element group having a plurality of mark elements, and comprises a plurality of mark elements, a second disposed in parallel to the first mark component group With mark elements, optically detected ,
(B) the first, the second mark element group, small without even predetermined mark element of the mark element is formed of a magnetic material, optically, and are detected magnetically, the predetermined packaging material, wherein Rukoto prevents erroneous detection in optical detection by detecting the mark elements magnetically. (A) a magnetic recording medium layer is constituted by the detection marks,
(B) The packaging material according to claim 1, wherein at least one of packaging material information about the packaging material and packaging container information about the packaging container is recorded on the magnetic recording medium layer. (A) a position detection unit that is disposed to face the packaging material and detects a detection mark formed on the outer surface of the packaging material;
(B) having positioning processing means for positioning the packaging material based on the detected detection mark;
(C) the detection mark, the first mark element group having a plurality of mark elements, and comprises a plurality of mark elements, a second disposed in parallel to the first mark component group A mark element group, optically detected by the position detection unit ,
(D) in the first, second mark element group, small without even predetermined mark element of the mark element is formed of a magnetic material, by the position detector, optically and magnetically filling machine is detected, characterized by Rukoto prevents erroneous detection in optical detection by detecting said predetermined mark element magnetically to.   The filling machine according to claim 3, further comprising an information acquisition processing unit configured to acquire at least one of packaging material information about a packaging material and packaging container information about a packaging container based on a sensor output of the position detection unit.

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