JP2008143528A - Pyramid-pack automatic packaging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pyramid-pack automatic packaging apparatus for high speed production by achieving reduction in the size and weight of the lateral seal mechanism without increase in cost and lowering inertia although a lateral seal mechanism repeating horizontal rotation of almost 90° every time a lateral sealer forms a seal is provided. <P>SOLUTION: The pyramid-pack automatic packaging apparatus 10 includes: an upper device 2 for forming a film cylinder of an approximately circular cross-section; a lateral seal device 31 located below the upper device 2 and used to form a lateral seal while alternately rotating horizontally 90°; a filling device 4 used to throw contents into a pyramid pack formed by the devices 2 and 31; and an apparatus body 1 in which each of the devices is mounted. The lateral seal device 31 is fixedly mounted in the apparatus 1. The upper device 2 is movably mounted in the apparatus body 1 so as to align the film cylinder to the rotation center of the lateral seal device 31. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an automatic packaging device, and more particularly to an automatic packaging device for a pyramid pack suitable for use in extracting components such as black tea and green tea by immersion in hot water or water.

  In the pyramid pack formed entirely in a triangular pyramid shape, the pack itself is normally sealed in a triangular pyramid shape, and a necessary space is always secured inside the pyramid pack. When the contents such as black tea or green tea are enclosed in this pyramid pack and immersed in hot water, these contents will not be pressed against the pack and will swell sufficiently, and many hot water will be accepted and tea, green tea, etc. It has the advantage that a component can be extracted effectively.

  A conventional automatic packaging machine for forming the triangular pyramid-shaped pyramid pack includes, for example, a lateral sealing device having the lateral sealer, a servo motor, and a mechanical operation mechanism such as a cam as seen in Patent Document 1. A lower device having In such a conventional automatic packaging machine, in order to prevent an increase in cost, a single lateral seal mechanism is rotated approximately 90 degrees at the end of the seal of the horizontal sealer disposed in the horizontal seal mechanism, thereby approximately triangular. Form a pack of cones.

  Next, the basic principle until a substantially triangular pyramid pack FH shown in FIGS. 5B and 5C is formed from a flat packaging film will be described.

  The packaging film is attached to an automatic packaging device for a pyramid pack in a roll state. Next, the packaging film is fed into the filling chute of the upper device while being drawn out by the feeding mechanism. The flat packaging film is formed into a substantially U-shaped cross section by the filling chute. Next, by vertically sealing both ends with a vertical sealer, a vertical seal portion FZ (see FIG. 5) is formed, and a film cylinder FA having a substantially circular cross section is formed.

  Next, the film cylinder FA having a substantially circular cross section formed by the upper device is supplied by a feed roller to a lateral seal mechanism provided below the feed roller. Here, in order to adjust the shape of the substantially triangular pyramid pack FH, the center position of the transverse sealers 32 and 33 arranged in the transverse seal mechanism and the center point of the film cylinder FA having a substantially circular cross section formed by the filling chute. Are finely adjusted by a position adjusting mechanism disposed in the horizontal seal mechanism. FIG. 5A shows the positional relationship between the horizontal sealers 32 and 33 in the horizontal seal mechanism and the film cylinder FA having a substantially circular cross section having the vertical seal portion FZ after adjustment by the position adjustment mechanism.

  Next, the configuration of the lateral seal mechanism 31 will be described. 4A shows a first horizontal seal that is a “first horizontal seal”, and FIG. 4B shows a second horizontal seal that is a “second horizontal seal”. The horizontal seal mechanism 31 includes a horizontal sealer 32 and a horizontal sealer 33 that hold a film cylinder FA that has been vertically sealed in a substantially cylindrical cross-section from both sides to perform horizontal sealing. The movement of the horizontal sealers 32 and 33 will be described. In the first horizontal seal shown in FIG. 4A, the horizontal sealers 32 and 33 perform horizontal seal from the vertical direction in the drawing. In the second horizontal seal shown in FIG. 4B, after the horizontal sealers 32 and 33 are once opened, the horizontal seal mechanism 31 is rotated 90 degrees horizontally, and the horizontal sealers 32 and 33 are viewed from the left and right sides in the drawing. Performs a horizontal seal. The operation of the lateral seal mechanism 31 forms a substantially triangular pyramid pack FH as shown in FIGS. 5B and 5C.

  Here, in order to stably produce the substantially triangular pyramid pack FH, the horizontal sealers 32 and 33 arranged in the horizontal seal mechanism 31 are opened each time the seal is finished, and the horizontal seal mechanism 31 is horizontally set to approximately 90 degrees. The repeated operation of rotating and further sealing needs to be performed at a fixed position of the finely adjusted lateral seal mechanism 31. However, a position adjustment mechanism that finely adjusts the positional relationship between the center point of the film cylinder FA having a substantially circular cross section formed by the upper device and the center position of the horizontal sealers 32 and 33 disposed in the horizontal seal mechanism, When added to the horizontal seal mechanism 31, the horizontal seal mechanism 31 is increased in size and coupled with a complicated mechanism for rotating the horizontal seal mechanism 31, resulting in an increase in cost. If the lateral seal mechanism 31 thus enlarged is rotated by approximately 90 degrees for each seal of the horizontal sealers 32 and 33, the inertia force (inertia) becomes large and cannot be rotated at a high speed. Triangular pyramid pack FH could not be produced at high speed.

  Further, if the lateral seal mechanism 31 is enlarged and the inertia is increased, vibration is generated at the initial rotation and stop of the horizontal seal mechanism 31 and the position of the finely adjusted lateral seal mechanism 31 is frequently shifted. Such misregistration frequently occurs with high-speed production. Each time such misalignment occurs, the position of the horizontal seal mechanism 31 needs to be finely adjusted by the position adjustment mechanism with respect to the center point of the film cylinder FA having a substantially circular cross section formed by the upper device, and high-speed production It has become a barrier to conversion.

JP 2001-199404 A

  As described above, the pyramid pack automatic packaging machine for finely adjusting the position of the lateral seal mechanism 31 with respect to the film cylinder FA having a substantially circular cross section formed by the upper device includes the lateral sealers 32 and 33 in the lateral seal mechanism 31. Since the position adjustment mechanism is added to the horizontal seal mechanism 31 that repeatedly rotates horizontally by approximately 90 degrees each time it is sealed, the horizontal seal mechanism 31 becomes larger and the inertia increases accordingly. High-speed production was difficult. Further, there has been a problem that the position of the finely adjusted lateral seal mechanism 31 is shifted.

  The present invention has been made against the background of the above circumstances, and an object of the present invention is to perform a horizontal operation of rotating horizontally by approximately 90 degrees each time the horizontal sealer in the horizontal seal mechanism seals. Despite having a sealing mechanism, by reducing the size and weight of the horizontal sealing mechanism without increasing costs, providing an automatic packaging device for pyramid packs that can reduce the inertia and achieve high-speed production. is there.

  The automatic packaging device for pyramid packs according to the present invention includes an upper device that superimposes both ends of a longitudinal packaging film and then vertically seals with an ultrasonic sealer to create a film cylinder having a substantially circular cross section. A horizontal sealing device that is positioned below and performs horizontal sealing with an ultrasonic sealer on the film cylinder while rotating it alternately 90 degrees horizontally, and the contents in a pyramid pack formed by heat sealing of this upper device and the horizontal sealing device An automatic wrapping machine provided with a filling device for charging the machine, and a machine body to which each of these devices is attached, wherein the horizontal sealing device is fixedly attached to the machine body, and the upper device is a horizontal seal. It is characterized in that the film cylinder is mounted so as to be movable with respect to the airframe so that the film cylinder is aligned toward the rotation center position of the apparatus.

  Such an automatic packaging device for pyramid packs has a position adjustment mechanism in the upper device, and the horizontal sealing mechanism is fixed to the body of the automatic packaging machine, so the horizontal sealing mechanism is simplified while suppressing an increase in cost. Weight reduction can be achieved. Therefore, it is possible to suppress the influence of the inertia generated when the horizontal seal mechanism rotates approximately 90 degrees as much as possible, and to produce the pyramid pack at high speed. In addition, since the problem that the position of the finely adjusted lateral seal mechanism is not likely to occur, the pyramid pack can be produced at high speed.

  Moreover, as such an automatic packaging device for pyramid packs, the filling device includes a metering supply device for measuring the amount of contents to be put into the pyramid pack, and guides the weighed contents to the filling inlet of the upper device. An intermediate chute, and the metering device may be attached to the airframe, and the intermediate chute may be attached to the upper device.

  The automatic packaging device for pyramid packs configured in this way, while stably forming a film cylinder having a substantially circular cross section in the upper device, the contents weighed by the metering supply device via the intermediate chute Since it can be stably put into the film cylinder, high-speed production of the pyramid pack can be realized.

  Further, as such an automatic packaging device for a pyramid pack, the upper device is movable in the front-rear direction when viewed from the front of the machine body in order to align the film cylinder toward the rotational center position of the horizontal sealing device. It may be formed.

The automatic packaging device for pyramid packs configured in this way is designed so that fine adjustment of the position of the film cylinder having a substantially circular cross section formed by the upper device and the horizontal sealer in the horizontal seal mechanism is horizontal when the aircraft is viewed from the front. Most of the adjustment of the position in the front-rear direction is possible, and the pyramid pack can be stably produced and high-speed production can be realized while preventing the cost of the equipment from increasing.
Here, in the present specification, the filling chute refers to a sailor that fills the packaging film to form the packaging film in a substantially U-shaped cross section.

  According to the present invention, although the horizontal sealer in the horizontal seal mechanism seals, the horizontal seal mechanism that repeats the operation of rotating horizontally by approximately 90 degrees is provided, and the horizontal seal is provided without increasing the cost. It is possible to provide an automatic packaging device for a pyramid pack capable of reducing the mechanism in size and weight, keeping inertia low, and enabling high-speed production.

BEST MODE FOR CARRYING OUT THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings. FIG. 1 is a front view showing a pyramid pack automatic packaging device 10 according to an embodiment of the present invention. FIG. 2 is a side view of the pyramid pack automatic packaging device 10 according to the embodiment of the present invention.

  As shown in FIGS. 1 and 2, the pyramid pack automatic packaging device 10 includes an airframe 1, an upper device 2 that is movably attached to the airframe 1, and a lower device 3 that is completely fixed to the airframe 1. And a filling device 4 installed in the machine body 1.

  The upper device 2 includes a roll installation unit 24 that rotatably attaches the roll FT of the packaging film F, a film feeding mechanism 25 that feeds the packaging film F, and a roll installation unit 24 that is positioned below the roll installation unit 24. A pair of left and right fixing plates 26 that support the mechanism 25 are provided. Further, the upper device 2 is positioned below the film feeding mechanism 25 and forms a flat packaging film F fed from the film feeding mechanism 25 into a substantially U-shaped cross section, and the vertical direction of the filling chute 21. An intermediate chute 41 for transferring the charged contents measured by the metering supply device 42 in the filling device 4 to the filling inlet 28 located substantially in the middle of the charging chute, and located below the intermediate chute 41, A longitudinal sealer 22 for forming a longitudinal seal part FZ by ultrasonically sealing both longitudinal ends of the substantially U-shaped film formed at 21 to form a longitudinally sealed film, and a lower end of the filling chute 21 A feed roller 23 is provided in the vicinity of the portion for feeding the formed film cylinder having a substantially circular cross section to the lateral seal mechanism 31. Here, the vertical sealer 22 for ultrasonic sealing is constituted by a horn (not shown) that performs ultrasonic vibration and an anvil (not shown) that receives ultrasonic waves from the horn.

  Further, the upper device 2 includes a manual position adjusting mechanism 27 that can horizontally move the upper device 2 in the front-rear direction when the body 1 is viewed from the front. In the position adjusting mechanism 27, by rotating a handle (not shown) attached to the position adjusting mechanism 27, the concave and convex portions attached to the body 1 side and the upper device 2 side are fitted to each other, The upper device 2 can be moved relative to the airframe 1 and its position can be adjusted. FIG. 3 is a side view showing a state in which the upper device 2 in the pyramid pack automatic packaging device 10 according to the embodiment of the present invention is horizontally moved forward by the position adjustment mechanism 27 when the machine body 1 is viewed from the front.

  The lower device 3 is a horizontal seal mechanism 31 that is positioned below the upper device 2 and is fixed to the airframe 1. The horizontal sealers 32 and 33 disposed inside the horizontal seal mechanism 31 perform ultrasonic horizontal seal. A horizontal seal mechanism 31 that rotates approximately 90 ° each time it is performed, and a horizontal seal rotation drive motor 34 that rotates the horizontal seal mechanism 31 are provided. More specifically, the horizontal sealers 32 and 33 for ultrasonic sealing include a clamp (not shown) for sandwiching and holding a film cylinder having a substantially circular cross section, a horn (not shown) for ultrasonic vibration, and the horn. It is comprised by the anvil (not shown) which receives the ultrasonic wave from.

  The filling device 4 is installed in the upper part of the machine body 1, measures the weight of a filling material such as black tea or green tea, and puts it into the intermediate chute 41. 2 is provided, and an intermediate chute 41 is provided to transfer the filling material charged from the metering supply device 42 to a filling inlet 28 positioned approximately in the middle of the filling chute 21 in the vertical direction.

  Here, the pyramid pack FH having a substantially triangular pyramid shape as shown in FIG. 5B or 5C is obtained from the flat packaging film F by the pyramid pack automatic packaging apparatus 10 according to the embodiment of the present invention. The process up to the formation will be described with reference to the side view of the pyramid pack automatic packaging device 10 shown in FIG.

  As FIG. 2 shows, the packaging film F is attached to the roll installation part 24 in the upper apparatus 2 of the automatic packaging apparatus 10 for pyramid packs in the state wound by roll shape. The roll installation unit 24 is fixed to a pair of fixing plates 26, and the packaging film F is drawn from the roll FT by the film feeding mechanism 25 in the upper device 2 and sent to the filling chute 21 in the upper device 2. Here, the flat packaging film F is formed into a substantially U-shaped cross section, and filling material such as black tea or green tea weighed by the metering supply device 42 is filled from the filling inlet 28 via the intermediate chute 41. . Next, the vertical sealer FZ (see FIG. 5) is formed by simultaneously performing vertical sealing and cutting operation by ultrasonic heat sealing while sandwiching both ends in the longitudinal direction by the horn and anvil of the vertical sealer 22 in the upper device 2. Then, a film cylinder FA having a substantially circular cross section is sealed.

  Next, the film cylinder FA having a substantially circular cross section formed by the upper device 2 is supplied by the feed roller 23 to the horizontal sealing mechanism 31 provided below the upper device 2. Here, the upper device 2 is provided so that the center point of the film cylinder FA having a substantially circular cross section and the center of the horizontal seal mechanism 31, specifically, the centers of the horizontal sealers 32 and 33 of the horizontal seal mechanism 31 are aligned. The position adjustment mechanism 27 finely adjusts the horizontal movement in the front-rear direction in a state where the upper device 2 is viewed from the front with respect to the airframe 1 to adjust the shape of the substantially triangular pyramid pack FH.

  Next, the film cylinder FA having a substantially circular cross section is sandwiched and fixed by the clamps in the horizontal sealers 32 and 33, and thereafter, while being sandwiched between the horn and the anvil, the film travels in the horizontal direction and performs ultrasonic heat sealing and cutting operation simultaneously. . Here, the basic operation of the pair of horizontal sealers 32 and 33 included in the horizontal seal mechanism 31 will be specifically described with reference to FIG. A pair of horizontal sealers 32 and 33 included in the horizontal sealing mechanism 31 squeeze a film cylinder FA having a substantially circular cross section, which has been subjected to vertical sealing, from both sides to perform horizontal sealing. More specifically, in the first horizontal seal shown in FIG. 4A, the horizontal sealers 32 and 33 perform horizontal sealing from the vertical direction in the drawing. In the second horizontal seal shown in FIG. 4B, after the horizontal sealers 32 and 33 are once opened, the horizontal seal mechanism 31 is rotated 90 degrees horizontally by the horizontal seal rotation driving motor 34. In this case, perform horizontal sealing from the left and right sides. Furthermore, the pyramid pack FH is seal-molded by cutting the seal portion at the same time as the horizontal sealing by such ultrasonic waves. FIG. 5A shows a state in which the pyramid pack FH is seal-molded while continuously repeating the first and second horizontal seals by the horizontal sealer. As shown in FIGS. 5B and 5C, the pyramid pack FH includes a vertical seal portion FZ, a first horizontal seal portion FX, and a second horizontal seal portion applied to a film cylinder FA having a substantially circular cross section. It is kept in a substantially triangular pyramid shape by the seal part FY.

  In the actual manufacture of the pyramid pack, when the first horizontal seal is finished, a filling material such as black tea or green tea having a predetermined weight measured by the metering supply device 42 is placed inside the film cylinder FA having a substantially circular cross section. After the film is filled from the filling inlet 28 of the filling chute 21 through the chute 41 and then the film cylinder FA having a substantially circular cross section for one pack is sent downward, the second horizontal sealing is performed. Thereafter, this operation is continuously repeated, and each horizontal sealer 32, 33 emits ultrasonic waves simultaneously with the horizontal seal to cut each horizontal seal portion up and down to separate the formed pyramid pack FH. It is configured.

  Here, as the packaging film F to be used, a mesh-like sheet, a cloth-like sheet, a non-woven fabric, and a nylon bag made of a mixed synthetic resin with polyester including polyethylene can be used.

  Moreover, if the material of the packaging film F used is a soft material, it is easy to process into the shape of the filling chute 21, and if it is a hard material, it is difficult to process into the shape of the filling chute 21, etc. Due to this, the diameter of the cross-section of the formed film cylinder FA is different. Here, when the diameter of the substantially circular cross section of the film cylinder widens and the center point of the substantially circular cross section of the film cylinder FA deviates from the center of the lateral seal mechanism 31, the position adjusting mechanism 27 of the upper device 2 Can be adjusted.

  Further, the movement distance of the feed roller 23 is adjusted by an operation panel or various operation switches (not shown) arranged in the operation control box 6 shown in FIG. 1, and the size of each pyramid pack FH described above is changed. can do.

  Also, a photoelectric tube switch that can control the feed amount of the packaging film F by the feed roller 23 by detecting the tag string FR that is adhered to the packaging film F at intervals is attached to the upper device 2. it can.

  According to the present embodiment, the center point of the film cylinder FA having a substantially circular cross section and the center of the horizontal sealing mechanism 31, specifically, the center of the horizontal sealers 32 and 33 of the horizontal sealing mechanism 31 are finely adjusted. A position adjusting mechanism 27 is installed in the upper device 2. Therefore, by separating the horizontal seal mechanism 31 and the position adjusting mechanism, the horizontal seal mechanism 31 can be simplified and reduced in weight without increasing the cost. Therefore, it is possible to suppress as much as possible the inertia that occurs when the horizontal seal mechanism 31 is rotated horizontally by approximately 90 degrees for each seal, and high-speed production of the pyramid pack FH can be realized. Further, since the horizontal seal mechanism 31 is fixed to the airframe 1, the position of the horizontal seal mechanism 31 is caused by vibrations that occur during repeated operations of rotating horizontally by approximately 90 degrees each time the seal is sealed. The problem of shifting does not occur. Therefore, high-speed production of the pyramid pack FH can be realized.

    Further, since the lateral seal mechanism 31 is fixed to the body 1, it is effective to connect the pyramid pack FH formed by the lateral seal mechanism 31 of the lower device 3 to the exterior machine as the next step.

It is a front view of automatic packaging device 10 for pyramid packs concerning an embodiment of the invention. It is a side view of the automatic packaging apparatus 10 for pyramid packs concerning embodiment of this invention. It is a side view which shows the state which moved the upper apparatus 2 in the automatic packaging apparatus 10 for pyramid packs concerning embodiment of this invention to the horizontal direction with the position adjustment mechanism 27. FIG. FIG. 5 is a diagram for explaining a basic operation of a horizontal sealer included in the horizontal seal mechanism 31. FIG. 4A illustrates a state in which the pyramid pack FH is seal-molded while continuously repeating the first and second horizontal seals by the horizontal sealer, and FIG. 5B is a plan view of the pyramidal pack FH that has been seal-molded. It is a perspective view (c).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Machine body 2 Upper apparatus 3 Lower apparatus 4 Filling apparatus 21 Filling chute 22 Vertical sealer 23 Feed roller 24 Roll installation part 25 Film feed mechanism 26 Fixing plate 27 Position adjustment mechanism 28 Filling inlet 31 Horizontal seal mechanism 32 Horizontal sealer 33 Horizontal sealer 34 Horizontal seal rotation drive motor 41 Intermediate chute 42 Weighing supply device F Packaging film FA Film cylinder FH having a substantially circular cross section FR pyramid pack FR Tag string FX First horizontal seal portion FY Second horizontal seal portion FZ Vertical seal portion

Claims (3)

After superimposing both ends of the packaging film in the longitudinal direction, an upper device that performs vertical sealing with an ultrasonic sealer and creates a film cylinder with a substantially circular cross section;
A horizontal sealing device that is positioned below the upper device and that performs horizontal sealing by rotating an ultrasonic sealer 90 degrees horizontally from the film cylinder,
A filling device for charging contents into a pyramid pack formed by heat sealing of the upper device and the lateral sealing device;
An automatic packaging machine provided with an airframe to which these devices are attached,
The lateral sealing device is attached to a position fixed to the fuselage,
An automatic packaging machine for pyramid packs, wherein the upper device is attached so as to be movable with respect to the machine body so as to align the film cylinder toward the rotational center position of the horizontal sealing device. The filling device is a metering device for measuring the amount of contents to be put into the pyramid pack,
An intermediate chute for guiding the weighed contents to the filling inlet of the upper device,
The metering device is attached to the fuselage,
The automatic packaging machine for pyramid packs according to claim 1, wherein the intermediate chute is attached to an upper device.   2. The pyramid pack according to claim 1, wherein the upper device is attached so as to be movable in the front-rear direction when viewed from the front of the machine body in order to align the film cylinder toward the rotational center position of the lateral seal device. For automatic packaging machine.

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