EP2132093A1 - Multifunctional sealing element - Google Patents
Multifunctional sealing elementInfo
- Publication number
- EP2132093A1 EP2132093A1 EP08734774A EP08734774A EP2132093A1 EP 2132093 A1 EP2132093 A1 EP 2132093A1 EP 08734774 A EP08734774 A EP 08734774A EP 08734774 A EP08734774 A EP 08734774A EP 2132093 A1 EP2132093 A1 EP 2132093A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag
- filling
- connecting piece
- sack
- dosing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/02—Machines characterised by the incorporation of means for making the containers or receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/28—Controlling escape of air or dust from containers or receptacles during filling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/46—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers
- B65B43/465—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers for bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/54—Means for supporting containers or receptacles during the filling operation
- B65B43/56—Means for supporting containers or receptacles during the filling operation movable stepwise to position container or receptacle for the reception of successive increments of contents
- B65B43/58—Means for supporting containers or receptacles during the filling operation movable stepwise to position container or receptacle for the reception of successive increments of contents vertically movable
Definitions
- the invention relates to a machine for filling and closing of bags and a method for filling of plastic bags with filling material and for closing the filled bags.
- Such a device is known for example from DE 93 01 355 U.
- a device for producing, filling and closing unilaterally open preferably provided with gusseted bags of thermoplastic described in which a first welding and separation station to form the bag with bottom seam, a filling station and a second welding station for closing the bag available.
- these filling machines are classified in the FFS (Form FiII and Seal) category.
- the filling of dusty goods according to the described known filling method usually leads to a significantly inflated product volume or to a significant reduction in bulk density, since the product accumulates heavily in the free fall with air. This in turn means that significantly more packaging material is needed to fill the product. In addition, the air must be able to escape from the bag again, otherwise it can not be stacked or stored.
- EP 1 459 981 A1 therefore proposes to introduce the filler neck of a metering device of an FFS machine into the opening of a bag.
- the relative movement between the sack and the filler neck is accomplished by a movement of the sack.
- the object of the present invention is to propose a machine in which the discharge of filling material proceeds with less dust.
- the clamping means will comprise grippers or suckers which grasp or suck in parts of the bag material and pull them outwards, that is, away from the main axis of symmetry of the bag. In this way, the bag material is stretched and nestles in a better way to the connection piece and / or the metering tube. Therefore, the clamping means comprise, in addition to any gripping means actuators, so devices apply the force that pull the gripping means and the bag material in the manner described. Often, linear actuators or working pistons will be used for this purpose.
- the spigot should have at least two passages for elements that pass through it.
- one or more vent tubes engage through the metering in the bag.
- the venting of the bag during the filling process is of great advantage, since air, which can not escape at first, means overpressure. Such an overpressure may discharge to the outside during filling and may lead to dusty contents again.
- the or the vent tubes can then be followed by filters that prevent leakage of Gugutstaub.
- the vent pipes can be made of sintered material.
- the connecting piece has at least one corner.
- the tension member then pulls the bag material into a shape that spans the corner. If then - which is usually advantageous - the employment of the sealing elements takes place against the already tensioned or prestressed film, the film nestles very well on the sealing element.
- the direction of action of the clamping element is the direction in which the sack material is actually pulled during the clamping movement. This direction can also be influenced by other additional machine elements such as the density elements - that is, deflected.
- each one corner of the filler neck - which may have even more corners - are assigned.
- the metering is usually perform a further relative movement relative to the connecting piece to advance into the interior of the bag and here to fill the bag with filling. If a suitable pre-positioning between the bag and dosing, the two aforementioned relative movements can also coincide. In general, however, any possible sequence of these relative movements between the sack, the dosing member and the connecting piece is advantageous or encompassed by the present invention.
- both types of gripping means will be adapted to grip the sack at its upper edges, not blocking the central area of the sack opening, since this central area is reserved for sack filling.
- the gripping means are gripper pair.
- opening means for the sack opening is advantageous. Often these are also assigned directly to the filling station. They often include suckers or other grippers. You should open the sack before the nipple through one
- Relative movement is introduced into the bag.
- Fig. 1 is a side view of an FFS machine
- FIG. 4 view as in Figure 3, but with suckers shown
- FIG. 5 view as in Figure 3, but with the bag open
- FIG. 6 view as in Figure 3, but with connecting pieces
- FIG. 7 view as in Figure 6, but drawn outwards
- FIG. 8 view as in Figure 7, but with employed clamping elements
- a tubular film web 15 (see FIG. 1), preferably with inserted side folds, is initially conveyed by a preferred roll system 9 into a horizontally movable transport means, for example a pair of grippers 18.
- the filling station 60 takes over a further transport 4, which consists of 3,4,5, the bag section.
- the empty bag is now opened with a suction system 16.
- the grippers 4 are moved in the Z direction or in the -Z direction (inwardly).
- the connecting piece of the transport system 3 is moved into the bag and protects the sack inner surfaces from contamination by possible product adherence to the metering tube 2,21.
- the opened bag is pulled by the transport system 3, 4, 5 on the metering tube 2,21 until the lower end of the bag is approximately equal to the Gregutaustrittsö réelle 31.
- the bag bottom support device 32,33,34 is in the embodiment shown below the bag floor hazards. However, a bag bottom support device 32, 33, 34 is not absolutely necessary. Rather, the relative movement of the bag relative to the Be Stirllorgan 2,21 mainly caused by the fact that the frame 5 along the guide 6 moves. This is represented by the double arrow 35. In this embodiment of the invention, therefore, the bag is moved relative to the Be refhapllorgan 2,21.
- the closure tube 21 is lifted and releases the product outlet opening 31.
- the product / bulk material 24 is filled in the bag. Meanwhile, the transport system 3,4,5 lowers the bag in such a way that the product outlet opening 31 is always below the filling level. However, even before the end of the metering of the product / bulk material 24, the product outlet opening 31 may be located at least once above the filling level 38.
- the closure tube 21 is lowered and closes the product outlet opening 31 by making contact with the closure 20.
- the connecting piece is pulled out of the bag.
- the gripper (s) 4 of the transport system 3, 4, 5 is now moved counter to the Z direction (out of the bag) and tightens the opening area at the upper edge 25 of the previously opened bag.
- Another transport means 10 takes over the filled bag 8.
- the closing device 14 By means of the closing device 14, the upper edge of the bag 25 is now closed. If necessary, it can be sucked out by the filter integrated in the closure tube 21 together with the dosing process. The required vacuum is introduced via the pipe 23.
- the integration of the filter in the closure tube allows a very compact design, which makes it possible to fill even relatively small bags. The suction of the air leads to a certain extent a compression of the bulk material. As a result, a sack size appropriate to the product quantity can be selected.
- vibration generators or beaters 29 This effect of product compaction can be further enhanced by the additional use of vibration generators or beaters 29. It is advantageous here to set the dosing tube 2, 21 in vibration by means of a vibration generator 29, since it is located within the product at least with parts of its lateral surface during filling. The vibrations are transmitted from the dosing 2.21 to the filling material 24, in which then takes place a compression.
- a further advantage of the "vibrating metering tube" 2.21 is that the formation of product adhesions on the metering tube 2, 21 is thereby largely avoided, and the vibrator 29 could also be arranged on the "bag bottom support device" 34.
- a particularly advantageous embodiment of the carriage is to store the frame 5 together with the neck 3 and the transport 4 on sensors.
- the sensors send their signal to a weighing electronics, which ultimately controls the dosing process.
- the absorption 16 may also be mounted on the sensors, but should advantageously be stored elsewhere, since the suction 16 is usually no longer in contact with it during the filling of the bag 11.
- the metering or pipe 2 In the metering or pipe 2 is a screw 7, can be promoted with the filling material 24 from the hopper 1 without much dust in the bag 8.
- the various sensors 26 (in particular weighing sensors or load cells) indicate advantageous locations for attaching such sensors.
- the conveyor belt 27 transports the filled bags (8). In the vicinity thereof, the checkweigher 30 and the vibration generator 29 are mounted.
- FIGS. 3 to 8 show a plan view of the elements of the filling station which are essential for the sack opening and bag filling in a device for Forming, filling and closing sacks. This view is shown in Figure 2 by the view III - III.
- FIG. 3 shows a still unopened empty bag 11, which comprises two outer walls 102, 103.
- a sack with gussets 104, 105 can be seen.
- the empty bag 11 has been taken over in the region of its lateral folds 104, 105 by grippers 106 and 107 by the feed device 18 (not shown here) (see FIG. 1).
- the grippers 106, 107 which are rotatably mounted in the holders 108, 109 in a manner not shown, hold the bag during the entire filling process.
- the holders 108, 109 are based on the frame 5, which is likewise not shown here in detail, and are displaceable relative to this frame 5 in a manner described below.
- FIG. 4 shows the same elements as FIG. 3, but opening means, which in the present exemplary embodiment are in the form of suckers 110, 111, are made from outside against the bag walls 102, 103 and suck them up.
- FIG. 5 illustrates the opening process of the empty bag 11.
- the teat 110 is moved in the direction Y and the teat 111 in the direction -Y.
- the holders 108 and 109 are moved in directions Z and -Z, respectively, to compensate for the reduction of the lateral extent of the bag 11. In this way, a filling opening at the upper end of the bag 11 is formed. This situation has also already been described in connection with FIG.
- FIG. 6 shows a situation similar to FIG. 5.
- Only one sealing element 112 was introduced into the interior of the bag 11.
- the sealing element 112 has already been referred to above in connection with Figures 1 and 2 and in the introductory description as a connecting piece.
- the words “sealing element” and “connecting piece” thus refer to the same element.
- the contour of the sealing element 112 in the plan view is similar in this embodiment, the cross section of a Convex lens.
- the sealing element 112 only needs to be introduced into the interior of the bag 11 approximately so far that the surface of the sealing element lies on a plane or slightly below the upper edges of the walls 102 and 103 (see FIG. 9).
- the sealing element 112 After the introduction of the sealing element 112, the negative pressure, which is applied to the outer walls 102 and 103 via the suction cups 110 and 111, can be removed and the suction cups 110, 111 can be removed.
- the sealing element 112 has at least two passage openings. In the present embodiment, three such openings can be seen. The largest opening represents the filling opening 113, which is preferably arranged centrally. Through this filling opening, the product can be filled into the interior of the bag 11. In a first embodiment, however, the sack is moved relative to a fixed in the device filling tube. In a second embodiment, the sack can be held immovable while the filling tube is moved into the interior of the sack 11 through the filling opening. A combination of both embodiments is, as described, conceivable.
- the sealing member 112 surrounds the filling tube and closes the space between the filling tube and the walls 102 and 103.
- the bag walls 102 and 103 are therefore not immediately adjacent to the filler neck.
- the bag 11 is raised so far that the distance between the bottom of the bag 39 and the lower outlet end 31 of the filling tube 2 is very small.
- the bag 11 is lowered continuously, so that the distance between the lower outlet end 31 of the filling tube 2 and the level of the contents 38 remains very small. The distance can assume a negative value. This means that the outlet end 31, as already described above, below the Gregutpegels 38 is located. In this way, a dust development during the filling process is avoided. It should be noted at this point that the filling process takes place only after the step shown in Figure 8 has been performed.
- the sealing element 112 further comprises two passages 114 through which, for example, suction nozzles are introduced into the interior of the bag 11 can be. With such suction can register the registered during the filling process air and compress the product in this way.
- FIG. 7 now shows that the holders 108 are again moved outward in the directions -Z and Z.
- the walls 102 and 103 lie partially outside from the outside to the edge of the sealing element 112. However, the space between the walls 102 and 103 and the sealing element 112 is not completely closed.
- clamping elements 115 are also set against the sealing element 112 from the outside, so that the walls 102 and 103 are clamped between sealing element 112 and clamping elements 115 or between two clamping elements 115. In the region of the sealing element 112, therefore, a single wall of the bag is respectively clamped between this and a clamping element. Between two clamping elements 115, however, both walls 102 and 103 are clamped lying on each other. As can be seen from FIG. 8, the clamping elements 115 have two regions. A first area presses against the sealing element 112, so that a bag wall 102 or 103 is clamped.
- a clamping element 115 presses against a second clamping element, which clamp the bag walls 102 and 103 between them. Since the bag walls are biased by the holder 108, results in an extremely high tightness of the bag interior with respect to the bag exterior. This applies even to the region 116 of the bag, in which neither a clamping element 115, nor the sealing element 112, nor the holder 108 attack. Due to the fact that not all areas of the bag wall must attack a device element in order to produce sufficient tightness, the format of the bags, in particular their width, can also be varied.
- the contour of the clamping elements is adapted to the contour of the sealing element, so that no free space remains.
- the holders 108 are thereby acted upon by an outwardly directed force which, however, is less than the force with which the walls 102 and 103 according to FIG. 7 are applied to the sealing element 112. This situation is shown in FIG. 8 symbolized by compared to Figure 7 shorter arrows Z and -Z.
- the holders 108 are moved by means of actuators, which may be arranged on the frame 5.
- actuators may be, for example, linear motors.
- pneumatic pistons are conceivable for this purpose.
- the actuators are represented in FIG.
- the material of the bag 11 can be pressed against the sealing element 112 by the clamping elements 115, without being damaged by the holders 108 due to excessive tension. However, the force with which the holders 108 are acted upon is nevertheless so great that the regions 116 of the walls 102 and 103 abut one another without the clamping elements 115 exerting a force here. Even in such areas 116, the interior of the bag 11 is sufficiently sealed against the environment.
- the line L is still shown in dashed lines, on which the corners of the sealing element 112 lie. Likewise, both the median plane between the grippers 106 and the median plane between the grippers 107 lie on this line, as well as the direction of force exerted by the actuators 117 on the holders 108 and 109.
- the line L is thus a symmetry line.
- FIG. 9 shows the view IX-IX from FIG. 7.
- the sealing element 112 can be seen in a solid line before it is introduced into the bag. After being displaced in the direction of the arrow X, the sealing element 112 is located inside the bag 11 just below the upper edge 117 of the bag 11. In this position, the sealing element 112 is shown with broken lines.
- the target areas 118 can be seen in addition, in which the grippers 106 and 107 engage.
- the grippers 106 and 107 engage the wall 103.
- the rear grippers 106 and 107 grip the wall 102.
- the target areas are far outward.
- these outboard areas are the gusset areas.
- the target area 118 is also arranged as close as possible to the sack top 25. Since the bag 11 can only be filled to a region that lies well below the target area 118 in which the grippers 106 and 107 engage, any bag material that projects upwards beyond the grippers 106 and 107 is useless and should be saved become.
- the target areas 118 are located in the right and left upper corners of the bag 11, respectively.
- the directions -Z and Z are again shown in FIG. 9, in which the forces with which the actuators 117 apply the holding means 108 are shown. These force directions are directed away from the main axis of symmetry 120 of the bag.
- the main axis of symmetry 120 lies along the longitudinal direction of the bag and, as a rule, centrally between the two outer edges of the bag 11.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Package Closures (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL08734774T PL2132093T3 (en) | 2007-03-27 | 2008-03-26 | Machine for filling and closing bags, comprising a multifunctional sealing element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007015298A DE102007015298A1 (en) | 2007-03-27 | 2007-03-27 | Machine for filling and closing sacks |
PCT/EP2008/002376 WO2008116638A1 (en) | 2007-03-27 | 2008-03-26 | Multifunctional sealing element |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2132093A1 true EP2132093A1 (en) | 2009-12-16 |
EP2132093B1 EP2132093B1 (en) | 2011-01-05 |
Family
ID=39535492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08734774A Not-in-force EP2132093B1 (en) | 2007-03-27 | 2008-03-26 | Machine for filling and closing bags, comprising a multifunctional sealing element |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2132093B1 (en) |
AT (1) | ATE494216T1 (en) |
DE (2) | DE102007015298A1 (en) |
PL (1) | PL2132093T3 (en) |
WO (1) | WO2008116638A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102803078B (en) | 2009-12-22 | 2015-08-12 | 派米尔技术有限公司 | Automatic transportation and delivery system |
IT201600099436A1 (en) * | 2016-10-04 | 2018-04-04 | Last Tech S R L | PACKAGING MACHINE FOR EXAMPLE FOR PHARMACEUTICAL CLOSURES, AND SYSTEM INCLUDING THIS MACHINE. |
CN112407444A (en) * | 2020-11-27 | 2021-02-26 | 伍福庆 | Packaging bag grabbing mechanism and method |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2727669A (en) * | 1950-09-15 | 1955-12-20 | Walter J Sackett | Weighed quantity bagger |
US4537013A (en) * | 1981-11-23 | 1985-08-27 | Windmoller & Holscher | Bag-filling apparatus |
DE3247415C2 (en) * | 1982-12-22 | 1984-12-20 | Hans 4000 Düsseldorf Lissner | Device for filling bulk goods, in particular powder |
DE3503812C2 (en) * | 1985-02-05 | 1986-11-20 | Hans 4000 Düsseldorf Lissner | Device for attaching sacks to a filler neck |
DE3726137A1 (en) * | 1987-08-06 | 1989-02-16 | Haver & Boecker | DEVICE FOR FILLING OPEN BAGS FROM ABOVE |
DE9301355U1 (en) | 1992-10-26 | 1993-11-25 | Windmöller & Hölscher, 49525 Lengerich | Device for filling and closing bags open on one side |
US5535792A (en) * | 1994-12-01 | 1996-07-16 | Mcgregor; James R. | High speed bag filling machine |
EP1018469A3 (en) * | 1999-01-08 | 2002-01-02 | Binder & Co. Aktiengesellschaft | Bag filling apparatus |
ITMI20030519A1 (en) | 2003-03-18 | 2004-09-19 | Concetti Spa | EQUIPMENT FOR FILLING BAGS WITH MATERIAL |
DE102005037916B4 (en) | 2004-11-11 | 2018-08-02 | Windmöller & Hölscher Kg | Machine for forming, filling and closing sacks and method of operating same |
-
2007
- 2007-03-27 DE DE102007015298A patent/DE102007015298A1/en not_active Ceased
-
2008
- 2008-03-26 PL PL08734774T patent/PL2132093T3/en unknown
- 2008-03-26 WO PCT/EP2008/002376 patent/WO2008116638A1/en active Search and Examination
- 2008-03-26 EP EP08734774A patent/EP2132093B1/en not_active Not-in-force
- 2008-03-26 DE DE502008002211T patent/DE502008002211D1/en active Active
- 2008-03-26 AT AT08734774T patent/ATE494216T1/en active
Non-Patent Citations (1)
Title |
---|
See references of WO2008116638A1 * |
Also Published As
Publication number | Publication date |
---|---|
PL2132093T3 (en) | 2011-05-31 |
DE102007015298A1 (en) | 2008-10-02 |
ATE494216T1 (en) | 2011-01-15 |
WO2008116638A1 (en) | 2008-10-02 |
DE502008002211D1 (en) | 2011-02-17 |
EP2132093B1 (en) | 2011-01-05 |
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