JP2013095465A - Packaging machine including mechanism for clamping bar-shaped packaged object and packaging method of bar-shaped packaged object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a part of a bar-shaped packaged object in a packaging bag from being caught between clamp arms and a vibration device and broken even when the vibration device moves upward.SOLUTION: A packaging machine M includes a pair of clamp arms 4, and fills and packages the bar-shaped packaged objects 1 such as rehydratable noodles while nipping both side edges of the packaging bag 2 by the clamp arms 4. A clamping means 65 comprising a pair of right and left metallic wires 65a, 65b for moving both side edges of the packaging bag 2 and the bar-shaped packaged objects 1 inward is installed in an outer peripheral portion of the packaging machine M in a first vibration section (4) at the back of a bar-shaped packaged object filling section (3).

Description

  In order to align the upper end of the rod-shaped package, the bottom of the package bag is filled with a thin, hard and easy-to-break rod-shaped package (for example, dried noodles such as somen, cold wheat, dried udon, pasta). The present invention relates to a packaging machine provided with a sandwiching mechanism for a rod-shaped packaged object so that the packaged product does not break when hit by a clamp of the packaging machine when vibration is applied from the packaging machine, and a packaging method for the rod-shaped packaged object.

  The packaging machine as in Patent Document 1 is a so-called rotary packaging machine, which is a packaging bag supply process, a printing process, a packaging bag opening process for opening a packaging bag, a filling filling process, A packaging process is completed by sequentially carrying out a vibration process for arranging the objects to be packaged by applying vibrations from the front, back and bottom, a sealing process, a cooling of the sealing part, and a non-defective product discharging process.

  When the packaging machine of Patent Document 1 supplies one sheet of packaging bags to be laminated to a set of clamp arms installed on the periphery of the rotor in the supplying step, the clamp arm is rotated by intermittent rotation of the rotor in the clockwise direction. The packaging bag is suspended and moved one pitch at a time, and the rod-shaped article to be filled is filled in the packaging bag opened in the bag opening process in the filling process.

  And, in the rear vibration process, the receiving plate provided on the back side of the packaging bag is opposed to the pair of movable clips and the pair of pressing bodies supported by the fluid cylinder, and the fluid cylinder generates vibration, Correct the posture of the packaged item in the packaging bag. Furthermore, in this patent document 1, in order to correct a posture, the vibration apparatus which pushes up a to-be-packaged object from the bottom is provided (refer paragraph number (0008) and FIG. 3).

Japanese Patent No. 3820343 Utility Model Registration No. 31007098

  The rod-shaped packaged goods include, for example, dry noodles such as somen, cold wheat, dried udon, pasta, etc., in addition to the ones shown in the example of Patent Document 1, but the top height and posture of the dry noodles immediately after the addition. In order to align them, a vibration is generated with the movable clip and the pair of pressing bodies in Patent Document 1 to correct the posture of the packaged item in the packaging bag, and the vibration device Although vibration is given so as to push up the bag bottom upward, the rod-shaped package may be broken as follows.

  FIG. 2 is a schematic view showing a state in which a rod-shaped article 1 such as dry noodles is put into the packaging bag 2 and vibrations are given up and down. When vibration in the vertical direction (arrow h1) is applied to the rod-shaped article 1 such as dry noodles using the vibration device 3, the packaging bag 2 has no side seal. A part of the rod-shaped article 1 placed in the part may be folded between the clamp 5 at the tip of the pair of clamp arms 4 and the flat plate 3a of the vibration device 3 when the vibration device 3 moves upward. is there.

  Therefore, the present invention is provided with a pinching mechanism for avoiding a part of the rod-shaped article 1 in the packaging bag from being pinched between the clamp arm and the vibration device even when the vibration device is moved upward. An object is to provide a packaging machine and a packaging method.

The packaging machine provided with the sandwiching mechanism for the rod-shaped article of the present invention includes a pair of clamp arms, and the packaging machine fills and packages the rod-shaped article while sandwiching both side edges of the packaging bag with the clamp arms. In
The stop section at the rear of the package filling section of the packaging machine is provided with sandwiching means for bringing the side edges of the packaging bag and the rod-shaped package to the inside.

The packaging method provided with the sandwiching mechanism for the rod-shaped article of the present invention comprises a pair of clamp arms, and the rod-shaped article for filling and packaging the rod-shaped article while sandwiching both side edges of the packaging bag with this clamp arm. A packaging method for packaging,
The packing method of the bar-shaped package includes a packing process performed in a bar-shaped package packing section, and a vibration section at the rear of the packing process. A vibration step of bringing the rod-shaped package object inward and retracting the rod-shaped package object from the lower region of the pair of clamp arms, and then vibrating the packaging bag and the rod-shaped package object in the vertical direction;
It is characterized by having.

  With the above configuration and method, the packaging bag that is hung from both sides of the clamp arm while being filled with the rod-shaped article is sandwiched when stopped at the stop section at the rear of the article filling section. The both side edges of the packaging bag are moved inward by the sandwiching operation. As a result, the rod-shaped article 1 present in the side edges of the packaging bag is moved toward the center and retracted from the lower region of the clamp arm. Thereby, it can avoid that the rod-shaped to-be-packaged item in a packaging bag is pinched | interposed between a clamp arm and a vibration apparatus, and is broken.

  The packaging machine and the packaging method of the present invention can avoid a part of the rod-shaped article to be packaged in the packaging bag from being pinched between the clamp arm and the vibration device.

Perspective view of pinching mechanism for stick-shaped package Schematic diagram of a conventional vibration device Schematic plan view of rotary packaging machine

Example 1
In FIG. 3, the rotary packaging machine M is supported by eight sets of clamp arms 4, each set of two on the peripheral edge of the circular rotor 10, and each clamp arm 4 has both ends of the packaging bag 2 at the respective ends. The clamp 5 which clamps a part is provided. When the power of a motor (not shown) is transmitted to the central shaft 10a of the rotor 10 via an intermittent rotation transmission mechanism (not shown), the rotor 10 has a 45 ° angle corresponding to the circumferential interval between the eight sets of clamp arms 4. Intermittently rotates clockwise (arrow R1) at an advance pitch.

  The rotor 10 includes a packaging bag supply section (1) for carrying out a packaging bag supply process, a bag opening section (2) for carrying out a packaging bag opening process and a printing process, and a filling process for filling. Bar-shaped article filling section (3) to be performed, first vibration section (4) to perform the first vibration step, second vibration section (5) to perform the second vibration step, posture adjustment to perform the posture adjustment step Each section includes a section (6), a seal section (7) for evacuating the air in the packaging bag and sealing the bag mouth, and a discharge section (8) for cooling the sealing portion of the packaging bag and performing a product discharge process, Work in each section for a predetermined time. Therefore, the packaging bag 2 supplied to the clamp arm 4 in the packaging bag supply section (1) is suspended from the rotor 10 by 45 degrees at an advance angle of 45 ° with its both side edges held between the clamp arms 4. It is intermittently transported toward the discharge section (8) along the outer circular path R.

  In the packaging bag supply section (1), a large number of packaging bags 2 are stacked in a bag box 11, and the stacked multiple packaging bags 2 are sequentially placed one by one from the top with a suction cup (not shown). It is adsorbed and supplied to the clamp 5 and is suspended while sandwiching both side edges thereof. In the bag opening section (2), first, after the expiration date, the date of manufacture, etc. are printed at appropriate positions on the surface of the packaging bag 2 by a printing means (not shown), The bag mouth 2a is opened by expanding while sucking the surface. In this case, the circumferential spacing of the clamp arms 4 is slightly reduced to facilitate the opening of the bag mouth 2a.

  In the rod-shaped article filling section (3), a predetermined amount of the rod-like article 1 such as dry noodles conveyed by the intermittent operation of the input conveyor 13 is a morning glory type by a reverse input device (not shown) that performs reverse / reverse operation. The hopper 8 is inserted into the inside of the packaging bag 2 from the opened bag mouth 2a in a vertical posture.

  In the first vibration section (4), in order to align the upper ends of the rod-shaped packages 1, the vertical vibration is applied to the rod-shaped packages 1 via the flat plate 3a of the vibration device 3 (see also FIG. 2). give. The pinching mechanism 6 (see FIG. 1) of the present invention is installed in the first vibration section (4). The vibration device 3 of FIG. 2 is driven immediately after completion of the pinching operation of the pinching mechanism 6 of FIG. 1 to align the upper ends of the rod-shaped packages 1.

  In the second vibration section (5) shown in FIG. 3, in order to align the posture with the upper end of the rod-shaped article 1 again, vertical vibration is given to the rod-like article 1 by the flat plate 3a of the vibration device. In the posture adjustment section (6), a pair of movable blocks 14 provided with a soft elastic material 14 a made of a corrugated thick sponge plate opposed to the front and rear surfaces of the packaging bag 2 are provided on the front and rear surfaces of the packaging bag 2. It is installed so that it can approach and leave and can vibrate in the opposite left and right directions. Accordingly, the pair of movable blocks 14 are brought close to each other, and a soft clamping force is applied to the packaging bag 2 and the rod-shaped article 1 by the elastic material 14a, and the pair of movable blocks 14 are opposed to each other in the left-right direction with a predetermined amplitude. When it is vibrated, when it reaches the posture adjustment section (6), the rod-shaped article 1 accommodated in the packaging bag 2 in a relatively bundle shape is softly loosened and flattened and adjusted in a flat manner. Align. Here, the circumferential interval of the clamp arm 4 is slightly enlarged to restore the original circumferential interval in order to close the bag mouth 2a.

  In the seal section (7), a pair of movable blocks 15 provided with a soft elastic material 15a made of a thick sponge plate opposed to the front and rear surfaces of the packaging bag 2 can approach and separate from the front and rear surfaces of the packaging bag 2. is set up. Therefore, before the bag mouth 2a of the packaging bag 2 is sealed, the air in the packaging bag 2 is eliminated by bringing the pair of movable blocks 15 close to each other and clamping the packaging bag 2 with the soft elastic material 14a. After deaeration, heat seal.

In the discharge section (8), after the seal portion whose temperature has been raised by the heat seal in the seal section (7) is cooled by a cooling means (not shown), the clamping of the side edges of the packaging bag 2 by the clamp 5 is released. Then, it is guided onto the carry-out conveyor 17 through the guide plate (shooter) 16 and is carried out and packed by the carry-out conveyor 17.
The above is sequentially performed to complete the packaging.

  Next, the sandwiching mechanism 6 shown in FIG. 1 will be described. The pinching mechanism 6 of the present invention is installed in the outer region near the circular orbit R in the first vibration section (4) (see FIG. 3), and is attached to the base 60, the fluid cylinder 61, the connecting link 62, the drive pinion 63, and the drive pinion 63. The driven pinion 64 which meshes, and the pinching means 65 which consists of a pair of left and right metal wires 65a and 65b.

  The fluid cylinder 61 has a horizontal posture in which the axis C is substantially parallel to the tangent to the circular rotor 10 (see FIG. 3), and can swing in the horizontal direction around the pin 61a as a swing center. The distal end portion of the connecting link 62 that is placed and whose proximal end portion is pivotally supported by the distal end portion of the piston rod 61b is fixed to the upper end of the center shaft 68a of the drive pinion 63. The drive pinion 63 and the central shaft 68a are integrated so that they can rotate at the same time and are erected on the upper surface of the table 60 so as to be rotatable. The driven pinion 64 and the central shaft 68b are integrated so that they can rotate simultaneously. It is erected on the upper surface of the base 60 so as to be freely rotatable. The base end portion of the left metal wire 65a constituting one of the sandwiching means 65 is fixed to the upper end of the center shaft 68b of the driven pinion 64, and the connecting link 62 fixed to the upper end of the center shaft 68a of the drive pinion 63 is fixed. A proximal end portion of the right metal wire 65b constituting the other of the sandwiching means 65 is fixed to the top surface of the distal end portion. The left and right metal wire members 65a and 65b constituting the sandwiching means 65 always have a "C" shape with a sufficiently large opening angle, as indicated by a solid line, and each tip end stands by in the outer region of the circular orbit R. ing.

  The detection bar 67 and the detection stand 67b made of a metal curved plate material are installed at a height position of the passing packaging bag 2 between the rod-shaped packaged article filling section (3) and the first vibration section (4). Yes. The detection bar 67 is swingably attached to a detection stand 67b supported by a support rod 67c connected to a support (not shown) and performs a switching operation. This detection bar 67 is a stage before stopping at the first vibration section (4), and is filled with a package bag 2 filled with a circular arc portion 67a at the tip and a fixing plate (not shown) facing this circular arc portion 67a. The presence or absence of filling of the package is detected. When unfilling of the article to be packaged is detected, the operation in each section after the first vibration section (4) is stopped only in the unfilled packaging bag 2.

  Reference numeral 66 denotes a sliding guide rod for stopping and guiding the swinging of the packaging bag. The sliding guide rod 66 is provided below the base 60, and is attached to the rotor 10 ( An arc-shaped main body 66a having a radius of curvature larger than the radius of curvature of FIG. 3) is welded.

  A packed bag 2 filled with a rod-shaped article 1 such as dry noodles conveyed from the rod-shaped article-packing section (3) (see FIG. 3) toward the first vibration section (4) is a first vibration section. In (4), it is guided to a position along the circular orbit R and stops. In the sandwiching mechanism 6 configured as described above, the piston rod 61b of the fluid cylinder 61 projects here, and the drive pinion 63 and the central shaft 68a are rotated counterclockwise via the connecting link 62, and at the same time, the driven pinion 64 and The central shaft 68b is rotated clockwise. As a result, the left and right metal wire members 65a and 65b constituting the sandwiching means 65 are changed from a "C" shape having a sufficiently large opening angle indicated by a solid line to a "C" shape having a small opening angle indicated by a two-dot chain line. As a result of the pinching operation changing in shape, both side edges of the packaging bag 2 are moved inward as indicated by a two-dot chain line x, and the width dimension W1 becomes smaller than the facing interval W of the clamp 5, The bar-shaped article 1 present in the side edges is retracted from the lower region of the clamp 5 at the tip of the pair of left and right clamp arms 4 while being moved toward the center. Therefore, even if the flat plate 3a of the vibration device 3 moves up immediately after the pinching operation of the pinching mechanism 6 is completed, the rod-shaped article 1 in the packaging bag 2 is sandwiched between the clamp 5 and the flat plate 3a and folded. By avoiding, the upper ends of the rod-shaped articles 1 can be aligned.

When the upper end alignment of the rod-shaped article 1 by the operation of the vibration device 3 is completed, the piston rod 61b of the fluid cylinder 61 is retracted, and the drive pinion 63 and the central shaft 68a are rotated clockwise via the connecting link 62. The driven pinion 64 and the central shaft 68b are rotated counterclockwise, and the left and right metal wire members 65a and 65b are returned to the “C” -shaped form with sufficiently large opening angles indicated by solid lines, and wait.
In the first vibration section (4), the above is sequentially performed.

(Other examples)
Although the sandwiching means 65 of the sandwiching mechanism 6 of the above embodiment is made of a metal wire, the sandwiching means 65 may be plate-shaped. Further, in the above-described embodiment, the sandwiching mechanism 6 is provided in the stop section at the rear of the package filling section on the outer peripheral portion of the packaging machine M. However, the sandwiching mechanism 6 may be provided on the inner peripheral side of the packaging machine M. Good. Furthermore, the sandwiching mechanism 6 of the present invention may be a packaging machine that inputs and fills a rod-shaped article to be packed while being conveyed in a straight line other than a rotary type packaging machine.

  INDUSTRIAL APPLICABILITY The present invention is useful, for example, as a sandwiching mechanism for a rod-shaped package for reducing folding when a rod-shaped package that is easily broken is put into a packaging bag and packaged in a rotary packaging machine.

DESCRIPTION OF SYMBOLS 1 Rod-shaped package 2 Packaging bag 4 Clamp arm 6 Clamping mechanism 65 Clamping means (3) Package filling section (4) First vibration section (stop section at the rear of the package filling section)
M wrapping machine

Claims (3)

In a packaging machine comprising a pair of clamp arms and filling and packaging a rod-shaped article while sandwiching both side edges of the packaging bag with this clamp arm,
A sandwiching mechanism for stick-shaped packaged objects, characterized in that the stop section at the rear of the package-filled section of the packaging machine is provided with sandwiching means for bringing both side edges of the packaging bag and the rod-shaped packaged objects inside. With packaging machine.   2. A packaging machine provided with a sandwiching mechanism for stick-shaped articles according to claim 1, wherein the sandwiching means is made of a rod-like or plate-like material. A method for packaging a rod-shaped article to be packed with a rod-shaped article to be packed while holding a pair of clamp arms and sandwiching both side edges of the packaging bag with the clamp arm,
The packing method of the bar-shaped package includes a packing process performed in a bar-shaped package packing section, and a vibration section at the rear of the packing process. A vibration step of bringing the rod-shaped package object inward and retracting the rod-shaped package object from the lower region of the pair of clamp arms, and then vibrating the packaging bag and the rod-shaped package object in the vertical direction;
A method for packaging a rod-shaped packaged article.

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