DE2005821A1 - Device and method for forming, filling and closing packages - Google Patents

Description

DR. ING, E. HOFFMANN * DIPX ,. ING. W. EITtE DH. BER. NAT. K. HOFFMANN

PATBNTAIfWUlE b-eOOOMONCHENei- ARABEUASTRASSE ^. TELEPHONE (0811) 911087

PAÖKAGING ERONTIEBS, INC., SHEBOXGAN, WISCONSIN / USA

Device and ■ method for forming, filling and ¥ erscfali @ ssen by V

Does a method relate to a device for the production of different types of packaging, using a device? From ^ ohtuns, oils eiii © down © s? St3? Eoli # nde tubular spindle "has / around 'oils a" forS-LaufeMd &' Behn from bl © gsass © m Paokma-: d «ts ayi" tinor Side- durob- site © ve ^ sohlieesbar j ■ iia RShraiiform -sebraoht- is «- 'where cliö- dupoh heat oh3.l € ssbar« 5 side of the web on de * iim ©; aseite. Die'HäiKiep der Balm. Imens © it © -sa "Ssa? Riassit @ 'dea? Xiegfii and in <9J, ae% * 'Yorbeetln) iat © si Eismio vob the'"tube ..« uioh & umm vorstehe ^ ?, which- © la © liEFisfetwsig sath holds to 'the helpers xte ^s @! I hits © gu 've ^ iaebiiees © »taä em des» RShre

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to form a longitudinal seam in said plane, the tube being moved downwards and in sections corresponding to the Corresponding length of a single pack, is guided away from the lower end of the spindle, and the one further device has below the lower end of the spindle to transverse, inner side lying on the inside To form closures that run transversely to the spindle at intervals of one packaging length each.

The invention relates in particular to packaging devices, who produce tetradehedron-shaped packaging, i.e. packaging in which the terminations lie in planes at right angles to each other, especially tetrahedral packaging with a seam, with the inside to inside and the ends of which lie between the ends of the end closures, and the also produce packaging in the so-called pillow shape, i.e. packaging in which both terminations are in the same plane and the longitudinal seam ends between the ends of the end closures, and in which the longitudinal seam between the leading edges of the packaging along a Packaging area runs * While this machine is related what works satisfactorily in the manufacture of these two types of packaging is their performance but only limited to these two types. For some purposes, however, a machine "that can produce a larger selection of types of packaging" will be required. E.g. so-called three-sided sealed bags, i.e. packaging in the form of sachets with three sealed sides with or without a gusset on the fourth side, as well as bags sealed on four sides, i.e. packaging in bag form with four sealed sides.

So far, a machine has been used, the tetrahedral Manufactures packaging and packaging in Kiasenforra, the one near the bottom erebroken tubular Has spindle around which a continuous path

made of flexible pakm & terials d & a on one side duroh 008845/1211

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Heat can be closed> is brought into a tube shape, with the heat sealable side of the web on the inside. So the train will be around the Spindle around brought into a tubular shape, and * lying there the side edges of the web face each other with their inner sides and stand from the tube in a predetermined

.voted level to the outside. A pair of vertically arranged Heat sealers melt the side edges with heat the web together, creating a longitudinal tube seam. These rods, which are called longitudinal seam rods or side sealer laterally inwards and outwards as well as vertically upwards and moved down. You will be off a sled worn, which is mounted for vertical back and forth movement and covers movement segments, each of which corresponds to a packaging length (and those for the production of packaging with different lengths can be modified) * The bars become clasps and sealing the side edges together, then move down to bring down a package length section, open and sweep back up to clip the side edges back in place. and the tube to lead down another section of packaging length. When the bars after Returning to the top ', the tube rests until the rods are on top

. Have reached the end of their path and clip the side edges.

See below the lower end of the spindle a first pair of sealing heads resting in a fixed horizontal plane below the lower end of the spindle Place packaging terminations across the tube, and a second pair of sealing heads that are in the same work solid plane but at right angles to the first-mentioned end sealers to cut across the tube in

a plane which is at right angles to the closure plane of the *

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The first-mentioned end sealer is to attach packaging closures, thereby producing tetrahedral packaging can be. The process of manufacturing tetrahedral packages includes the downward movement of the tube in sections of packaging length, with the Tube rests between successive movements, as well as alternating actuation of the first and second Pair of end sealer heads during these pauses, making successive closures at right angles Levels standing in relation to one another and locks created by the alternating actuation in the same level lie.

The longitudinal seam is created in a certain vertical plane with regard to the planes of the transverse one or terminations runs diagonally. For this purpose, the first and second pair of sealing heads, the operated by air cylinders, supported by a round plate fixed in an opening in a panel and has a square opening in the middle. The plate is attached so that the plane of the longitudinal tube seam lies in a diagonal vertical plane to the square opening. This arrangement has the consequence that the ends of the longitudinal seam of the tetrahedral packaging produced by the machine between the end closures of the packaging and that the longitudinal seam crosses two of the four triangular sections of the packaging.

The machine used so far can produce pillow-shaped packaging by leaving a switch open so that only one pair of sealers is operated in successive cycles (instead of alternating pairs to be operated in successive cycles). Caused together with the plate arrangement described above This means that packaging is created in the form of a pillow, i.e. packaging whose end closures are in the same plane and at de.:f-r. the ends of the longitudinal seam between the ends of the End connections lie and this longitudinal seam along only

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one of the two packaging surfaces extends.

The aim of the invention is to provide packaging devices and method for producing a relatively to create a wide range of packaging types, including Forms as mentioned at the beginning and in the creation to start these devices and methods from the device described above, but to improve them that they have three-sided sealed bags with or without a gusset and four-sided sealed bags as well as tetrahedral and pillow-shaped packaging can produce.

The object is achieved according to the invention by that in this process the device for formation of the transverse closures in a first position brought relative to the longitudinal seam forming device is used to produce packaging in which the longitudinal seam runs along a packaging surface, and that the device for forming the transverse closures is brought into a second position relative to the longitudinal seam-forming device in order to produce packaging in which the longitudinal seam along one side of the packaging runs.

The changing position of the device for forming the transverse closures makes it possible Manufacture of the various types of packaging mentioned above, with some. Additions for the manufacture of three-sided Sealed gusseted pouches and four sided "sealed pouches" are provided as will be seen.

Further goals and characteristics are partially evident and in part they are used in the following description in connection with the attached drawing executed. Show it:

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Flg. I an eohematic view of the arrangement of the

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-Er for the production of tetrahedral or pillow-shaped packaging,

2 shows a view of a tetrahedral package produced by the device,

Figure 5 is a view of one made by the device pillow-shaped packaging,

Fig. 4 is a view corresponding to Fig. 6 of U.S. Patent 3,221,469 showing "how the apparatus for Manufacture of three-sided or four-sided sealed bags has been modified and arranged,

FIG. 5 shows a schematic view of the arrangement according to FIG. 4 for the production of three-sided sealed Bag without gusset,

Figure 6 is a view of one made by the apparatus three-sided sealed bag without gusset,

Figure 7 is a schematic view of a modification for making three-sided sealed bags with Gore,

8 shows a view of a bag which is sealed on three sides and produced by the device from FIG Gore,

9 is a schematic view of a modification for making four-sided sealed pouches, and FIG

FIG. 10 shows a view of one of the device from FIG. 9 manufactured four-sided sealed pouch.

Flg. 1 of the invention eliminates an arrangement of the sealing bars JA and S> 1 \ y ^ v formation of the Rb'hrtmliintfsnaht

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and end sealers 5A, 5B, 5C and 5D for manufacture tetrahedral or pillow-shaped packaging, such as described above, Fig. 2 shows a in this way her- " • Asked packaging Pl, and Fig. 3 a in this way produced class-shaped packaging P2. The tetrahedral Packaging Pl has terminations El and E2, the planes of which are at right angles to each other, "and the longitudinal seam L, the ends of which are between the ends of the terminations El and E2 lie, runs across two triangular ones Sides of the packaging. The pillow-shaped packaging P2 has end closures E1 and E2 in the same plane on, and the longitudinal seam L, the ends of which between the ends these terminations are located lengthways over one of the two packaging areas. As shown in Fig. 3, the longitudinal seam L lies between the longitudinal center line and a packaging side (the right one as shown will).

According to the present invention, the previously common machine is modified in a very simple and effective manner so that it can produce a larger selection of types of packaging than packaging in tetrahedral and pillow form, the additional shapes including bags sealed on three and four sides, such as as will be seen, and the longitudinal seam can also be attached at various points in the pillow-like packaging. As shown in the drawing, the modification comprises attaching a round plate 59 ^au f of a panel 13 so that * the plate 59 about its vertical axis (with the axis of the spindle 1 coincides) from the position shown in Fig. 6 of the said US patent is shown (the Endeiaversiegler 5A - 5D are diagonal to the vertical plane of the longitudinal seam L) are rotated to the position ICaBn _1, which is shown in Figure _9. 4 and 5 and in which the Endeüifersiegler 5A and 5B are parallel to the vertical plane of the longitudinal seam - L on opposite rl .Le -, "j'-Tiden sides of this plane stand". For this it must be mentioned that the ene sealers 5A and 5B are those ^ that

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by releasing switch 577 in successive Cycles can be used. To enable this "rotation" of plate 59, flexible air duct connections are provided toi provided, as in Fig. 4 to can be seen which allow the plate to rotate through an angle of 45 ° around its vertical axis. How also from Fig. 4, the plate can be formed at its edge with a ring gear 7oj5 and by means of a Worm 7o5 are rotated, with an index line 7o7 is provided on the plate 59, in connection with Angle markings 7o9 can be read on the table Ij5 can. The end sealers 5A and 5B are any one of a number of different angles between their positions in Figs Take angles.

If the end sealers are positioned as in FIGS. 1 and 5 of the application and only the end sealers 5A and 5B are used in successive cycles (with the end sealers 5C and $ Ό not actuated), the machine forms three-sided sealed bags P3 without gussets, as shown in FIG 6 of the application shows the end closures E1 and E2 of which two rare ends in the same plane and the third side of which is closed by the longitudinal seam L, the fourth side being simply folded.

7 shows a modification of the structure from FIGS. 4 and 5 for the formation of three-sided sealed bags P4 with gusset 715 * in which a device is provided to form a gusset diametrically opposite the longitudinal seam L in the tube T. As shown, a spindle 1 a with a notch 711 lying in the plane of the longitudinal seam L and diametrically opposite it, as well as a device, for example a finger 715, for inserting the material of the tube T into the notch, so that a gusset 715 is formed will. For this purpose, the spindle of the previously known machine can easily be removed from the 009845/1211

removed and replaced, or replaced by the spindle la will. As can be easily seen, the roll of material has W, which is formed into the tube T with the gusset, a V / ei te that by the amount, -der for the longitudinal seam; L. and the gusset 715 is used is larger than the ■ Circumference of the spindle la. Fig. 8 shows a three-sided sealed Pouch P.4 with 'gusset 715, by using the notched spindle la and the finger 713 originated. This is basically the same packaging like PJ, with the difference that they're 'along their fourth Side (i.e. its unsealed side) has a gusset created by inserting it.

Fig. 9 of the application shows a modification of the Structure from FIGS. 4 and 5 for the production of a four-sided sealed bag, and Fig. Io shows one Prey under the designation P5. For this purpose, a device is provided for forming the tube T with an elongate End 717 * which consists of two sections 719 of the tube material, which converge in an outer bend 721, which extends in the plane of the longitudinal seam L of the the latter extends diametrically opposite from the tube T radially outward. Furthermore, a device is provided in order to seal the sections 719 lying inside to inside. Above all, instead of the spindle 1 (or la) a spindle Ib is used, with one facing outwards running elongated rib 723 md with guide parts 725 to form the elongated end 717. The rib 723 lies in the plane of the longitudinal seam L and is this diametrically opposed. The guide parts 725 are circular arc-shaped; a part extends around one side of the spindle Ib from a point near one Side of the longitudinal seam L up close to one side of the rib, and the other part extends around the other. Side of the Spindle Ib starting from a point near the other side of the longitudinal seam to near the other side of the rib. The guide parts 725 have .a distance from dor. Spindle,

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which is a little greater than the thickness of the web of material W, 'which forms the tube, so that the tube is between the guide parts and the spindle can move, with the seam L on one side and the opposite Side the elongated end 717 between the guide pieces stands out. The rib 725 only protrudes a short distance Off the spindle and the elongated end 717 protrudes a considerable distance beyond the rib. the The web of material W, which is formed into the tube T with the elongated end 717, has a width which is by the amount which is required for the longitudinal seam L and the elongated end 717 is larger than the spindle circumference.

The apparatus for sealing the sections 719 of the elongated end 717 * being inside to inside consists of a second array of side sealing bars 3C and 3D, which can be operated together with the longitudinal seam-forming rods 3A and JB. the Bars J5C and 3D are opposite bars 3A and 3B J5B on the other side of the spindle Ib and are facing outwards removed from the rib 723 so that they the sections 719 of the elongated end 717 outside Flatten the rib and seal it. As shown in FIG. 9, the rods 3C and 3D can be connected to Yoke parts 727 are attached, which are connected to the rods 3A and 3B and run around the spindle Ib. These yoke members 727 can be detachably attached to rods 3A and 3B in any suitable manner.

When the device is actuated, as shown in FIG. 1, the rods 3A and 3B produce the longitudinal seam L, and the rods 3C and 3D simultaneously form a closure diametrically opposite the longitudinal seam along the length
borrowed end 717. The end / sealers 5A and 5B work in each cycle to divide the end closures E1 and E2 in the same plane, and the resulting package is a four-sided sealed pouch, wio in

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, Pig. Io can be seen under P5, with the terminations El and E2 represent two of the four sealed sides, the longitudinal seam L the third side and the closure on the elongated end? 17, which is designated 717a, the fourth page forms.

From the above it can be seen that the various objects of the invention and other advantages have been achieved.

Because of the above constructions and procedures various changes within the scope of the invention Care is taken that everything is included in the above description or is shown in the accompanying drawings as

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It is to be understood as an illustration and not as a limitation.

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Claims (1)

/ I? Claims 1J Process for the production of various types of packaging using a device having a downwardly extending tubular spindle, around which a continuous web of flexible packing material, which can be closed on one side by means of heat is, is brought into tubular shape, with the heat sealable side of the web on the inside and the edges of the web lie inside to inside of each other and in a predetermined plane of the protruding outwards of the tube, / contains a device to seal the edges by heat and on of the tube in said plane to form a longitudinal seam, the tube being moved downwards and in sections that correspond to the length of a single pack, is guided away from the lower end of the spindle, and the one further device has below the lower end of the spindle to transverse, inside to inside closures to form, which run transversely to the spindle at intervals of one packaging length each, characterized in that in this method the Device (5A-5D) for forming the transverse Fasteners in a first position relative to the seam forming Device (j5A, J5B) is brought to packaging produce, in which the longitudinal seam (L) runs along a packaging surface, and that the device (5A-5D) to form the transverse closures is brought into a second position relative to the longitudinal seam-forming device (j5A, 3B) in order to produce packaging with the longitudinal seam (L) running along one side of the packaging. 009845/1211 - 13 - 2. The method according to claim 1, characterized in that the device (5A-5D) for formation of the transverse closures is in the second position and a gusset (715) is formed in the tube which is diametrically opposed to the longitudinal seam (L) to thereby seal bags PJ with gussets on three sides (715). 5. The method according to claim 1, characterized in that that the device (5A-5D) for Formation of the transverse closures in the second Position, and that on the tube has an elongated end (717) is formed from two elongated tube sections (719) which converge in an outer bend (721), the latter in the plane of the ■ Longitudinal seam (L) runs radially outwards and the longitudinal seam (L) is diametrically opposite, and that the tube sections (719)> which form the elongated end (717), lying inside to inside sealed by heat resulting in bags (P5) sealed on four sides. Λ. Packaging device with a downwardly extending tubular spindle around which a continuous web of flexible packaging material, which is heat sealable on one side, is brought into tubular shape, with the heat sealable side of the web on the inside and the edges of the Web lie inside to inside of each other and protrude in a yorbest-lmmten plane outwards from the tube, with a device to close the edges by heat and to form a longitudinal seam on the tube in said plane, the tube being moved downwards and irv. Sections, which correspond to the length of a single package, is led away from the lower end of the spindle, with a device below the lower spindle end, around transverse closures lying inside the inner flap 009846/1211 '■ - i4 - which run transversely to the spindle at intervals of one packaging length each, characterized in that a device is provided, by means of the device (5A-5D) for forming the brought transverse closures relative to the longitudinal seam-forming device (j5A, JB) in a first position can be used to produce packaging in which the longitudinal seam runs along a packaging surface, and in a second position in order to produce packages in which the longitudinal seam is along one side of the package runs. 5. Packaging device according to claim 4, characterized in that the device (5A-5D) contains a first and a second pair of transverse heat sealers to form transverse closures, that the transverse heat sealers of each pair can be moved towards and away from each other and the two Pairs at right angles to each other can be actuated so that these pairs are arranged so that they can work alternately in successive cycles in order to produce transverse closures running over the tube below the lower end of the spindle (1), so that the successively created Closures in different levels and the alternately created closures lie in the same level, whereby tetrahedral packaging (PI) is formed, and that only one of the pairs can work in successive cycles in such a way that packaging is created that is transverse at both ends in the same level have running closures. 6. Packaging device according to claim 5, characterized in that the pairs of transverse heat sealers are carried by a holding device which can be rotated about the spindle axis in order to bring the heat sealers into either the first or the second position that the plane of the 009845/1211 _ 15 - Longitudinal seam (L) to the level of the transverse fasteners, the one from the transverse Warraeversleglern in the first Position are formed, running diagonally and with the plane of the transverse shutter, which is from the a pair of transverse heat sealers in the second Position is formed, lies in the same plane. 7. Packaging device according to claim 5 or 6, characterized by the fact that the transverse heat sealers are in a fixed plane below of the lower end of the spindle (1.) can be actuated. 8. Packaging apparatus according to claim 4, characterized in that that the device (5A- 5D) to form transverse closures in their second Position is, a device is provided to in the tube one of the longitudinal seam (L) diametrically opposite Gusset (71.5) for making three-sided sealed pouches (P3) with gussets (715) and that this gusset-forming device has an elongated notch (71-1) in the spindle (1) which is in the plane of the The longitudinal seam (L) is diametrically opposite this longitudinal seam, and includes a part for pushing (713) the tube material into the notch (7.H). 9. Packaging device according to claim 4, characterized in that the device (5A-. 5D) to form transverse closures in the second Position is, and that a device to accidentally the tube is provided with an elongated end (717) consisting of two elongated sections (719) of the tube, ■ which converge in an outer bend (721), polygons extend from the tube in the plane of the longitudinal seam (L) extends radially outward and the longitudinal seam is diametrically opposite that this device for-formation of the curved elongated end (717) / outwards extending elongated rib (723) on the spindle (l) 009845/1211 ■ BAD OFHGlNAl. - 16 - and the elongated end (717) over the rib (725) protrudes, and that a device (3C, 3D) is provided by means of which the tube sections (719) forming the elongated end (717) are inside to inside lying, heat-sealed that this device (j5C, 3D) is heat-sealed together can be actuated with the longitudinal seam-forming device (3A, 3B.), on the one opposite this device (] 5A, 3B) Side of the spindle (l) and is attached to the outside away from the rib (723), and that this creates bags (P4) sealed on four sides. Io. Packaging device according to claim 9 » characterized in that a pair of circular arc-shaped guide parts (725) run from a point near the longitudinal seam to a point near the rib (723) around the spindle (1) and away from this spindle (1) to the outside so that the tube can move between the guide parts (725) and the spindle (1). 0 9 8 4 5/1211 Blank page