EP3755631A1 - Filling device and method for filling bags with a respective unsealed upper end - Google Patents
Filling device and method for filling bags with a respective unsealed upper endInfo
- Publication number
- EP3755631A1 EP3755631A1 EP19703678.3A EP19703678A EP3755631A1 EP 3755631 A1 EP3755631 A1 EP 3755631A1 EP 19703678 A EP19703678 A EP 19703678A EP 3755631 A1 EP3755631 A1 EP 3755631A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag
- filling
- filling device
- layer
- fluid
- 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.)
- Pending
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
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B1/06—Methods of, or means for, filling the material into the containers or receptacles by gravity flow
-
- 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
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
-
- 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
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
- B65B43/123—Feeding flat bags connected to form a series or chain
-
- 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
- B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
- B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
-
- 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
-
- 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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
- B65B51/146—Closing 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
- B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
- B65B39/06—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers adapted to support containers or wrappers
- B65B39/08—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers adapted to support containers or wrappers by means of clamps
- B65B39/10—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers adapted to support containers or wrappers by means of clamps operating automatically
-
- 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
- B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
- B65B43/34—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure
- B65B43/36—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure applied pneumatically
-
- 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
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/191—Bags, sachets and pouches or the like
Definitions
- the invention relates to a filling device for filling sacks, each with an unclosed upper end according to the preamble of patent claim 1, a method according to the preamble of claim 19 and a form-fill-seal device according to the preamble of claim 21.
- the bags With generic filling devices bags whose upper ends are unlocked and are usually transported hanging, filled from above.
- the bags are double-layered, wherein the two layers of material limit an interior, which provides a volume for a product.
- the two layers of material can be connected to each other by simple side edges or by gussets. At the lower ends of the bag is closed. For this purpose, a weld seam which detects the two layers and optionally the gussets may have been produced.
- an opening station is arranged in a filling station, so that no transport is necessary between the opening station and the filling station.
- an opening means engages in one position. Both opening means then move away from each other and take the respective situation, so that the interior of the bag can be reached for the filling station and thus for the filling material. It can happen that the two layers of material adhere to one another so strongly that an opening of the bag fails, whereby an opening means dissolves in its movement of the respective position. A filling of the bag is so not possible anymore.
- the reliability of the opening process leaves much to be desired. As a result, the machine performance, ie the number of filled bags per unit time, is reduced.
- the object of the present invention is therefore to propose a filling device and a method in which the opening of the bags takes place before filling with a higher reliability.
- the filling device comprises at least one layer movement device for moving the at least one layer of the sack relative to the at least one second layer, with which the layers of the sack can be acted upon, wherein the layer movement device is arranged upstream of the fodder station.
- the layer movement device is also possible to provide a transport device for transporting a bag to the filling station, it being possible with the transport device to transport the bags one after the other from the layer movement device to the filling station.
- At least one holding means is provided for holding a bag in the ply moving means, which remains stationary within the filling device before and / or during the action of the ply moving means or with a stroke of at most 15mm, preferably at most 10mm, within the filling device in the direction of the bag longitudinal axis is movable so it is preferably not provided for moving the layers relative to each other, that the holding means move This eliminates a mechanical effort Usually the distance of the outer edges of a bag, which is held by holding means , slightly smaller than the nominal bag width, so that the sheets can move relative to each other only due to the play.
- the holding means perform a movement in the direction of the bag longitudinal axis in order to increase the game.
- the movement of the holding means in the direction of the bag longitudinal axis is smaller than the movement of holding means which hold the bag for the purpose of opening, for example within the filling station, wherein these holding means in the filling station in the direction of the Sack longitudinal axis are movable.
- the layer movement device comprises at least one fluid nozzle, with which a flow of a fluid to the upper end of the bag is gebbar.
- this fluid flow it is possible, for example, to introduce the fluid in the region of the upper edge between the two layers of the bag and thus to reduce the existing adhesive forces.
- the fluid flow leads to a movement of the upper edge of the bag, wherein the two layers of the upper end slightly move away from each other. Often, this creates a small opening into which the fluid flow can enter the interior and the two layers can be removed a little further from each other.
- the fluid is a gas, in particular air, wherein the gas is preferably under pressure.
- the overpressure is preferably between 4 and 8 bar. At this pressure, the effect of the invention is particularly good.
- a fluid nozzle can in this case as an air nozzle be designated.
- a filling device is often already connected to a compressed air system of a workshop, so that the invention can be realized inexpensively.
- the air pressure of such a compressed air system is usually at 6 bar, so that the overpressure according to the invention is available without further effort.
- the at least one fluid nozzle is positioned and / or aligned in such a way that the fluid flow comprises a directional component in the direction of the bag longitudinal axis.
- this directional component thus runs vertically downwards.
- the fluid nozzle is also oriented so that at least a portion of the fluid stream meets the top edge of the bag exactly. In this case, the described effect leads particularly reliably to a relative movement of the layers. It can be provided a fluid nozzle which generates a planar fluid flow whose width is thus greater than the thickness.
- the fluid nozzle and thus the fluid flow is arranged parallel to and in particular in the plane of the bag.
- the fluid nozzle is preferably arranged obliquely to the bag axis. Details of this can be found in the description of the figures.
- it may also be provided to direct the fluid flow at least with a component in the direction orthogonal to the plane which is spanned by the bag.
- the fluid flow forces externally on one of the two layers.
- the second layer moves, but shift both layers relative to each other.
- at least one electrode is provided, with which the fluid flow can be acted upon by an electrical voltage.
- the applied electric voltage which is sufficiently large, causes atoms or molecules of the fluid to give off electrons and thereby receive an electric charge.
- the fluid stream is ionized.
- An ionized fluid flow may at least partially compensate for an electrical charge between the layers, and consequently reduce electrostatic attractions.
- the opening of a bag can be made even more reliable.
- the electrode downstream of the fluid flow downstream of the fluid nozzle and preferably arranged on this or attached directly to this.
- a valve is provided with which the fluid flow from a positive pressure source can be transmitted and / or interrupted.
- a fluid shock can be generated or generated.
- the upper end or the upper edge of the bag can be set in a sudden and strong movement, which supports the release of the two layers from each other and thus can reduce the adhesion between the layers of the bag.
- the duration of the maintenance of the fluid flow is to be kept short, preferably less than 1 second, in particular less than 500 milliseconds (msec).
- a transport device for transporting the bag from the layer movement device to the filling station and, in particular, during a transport of the bag to the filling station, the interior of the bag remains tool-free. It can thus be dispensed with a tool that engages the interior of the bag to keep it open during transport to the filling station.
- the at least two layers of the bag are essentially in contact with each other during transportation. This ensures that the layers of the bag lie back on each other, so that no fluid as possible remains in the bag interior and no ambient air enters the bag interior Since the adhesion of the two layers to each other have already been reduced by the short-term moving the layers relative to each other, is a reopening before filling reliably possible.
- the position of moving means comprises at least one suction device" which externally engages a location of the bag.
- two suction devices can be provided. With such a suction device, it is possible to pull apart the layers of the bag and thus to assist the introduction of a fluid flow to reduce the adhesion between the two layers.
- At least parts of the suction device are preferably movable away from the original plane of the bag.
- a lever may be used, for example, at least "in which the sucker is arranged.
- the component or components " on which the nipple is arranged, at least during the movement of the layers remains stationary relative to each other. Thus, the mechanical effort, which could be necessary for moving the layers of the bag could be minimized » .
- the suction device touches the upper edge or even overlaps with the upper edge of the bag.
- the sucker is to be positioned as close to the top of the bag "so that the suction and the optional fluid flow can best cooperate.
- the sucker is positioned in the horizontal direction of the bag level in an area » in which the fluid flow hits the upper edge of the bag.
- the suction devices in the plane of the bag are offset from each other » in particular in the horizontal direction of this plane. This prevents » if » both suckers do not apply the same amount of negative pressure, the bag is detached from one of the two suckers
- the at least one suction device can advantageously be designed as bellows suction.
- a Bellow is a sucker "is characterized by one or more folds. Is this sucker "applied to an object, in this case in a bag '' he can not Aspirate more ambient air when a negative pressure on the sucker. As a result, the bellows vacuum automatically shortens its length, as the negative pressure causes the inner volume to also become one
- a Faltengsaugers can be low, in particular less than 20mm, in particular less than 10mm, but this is sufficient for moving the layers relative to each other and thus to further reduce the adhesive forces
- a Faftenbalgsauger made of an elastomeric material, so that this after the release of the negative pressure, so the separation of a vacuum source, again similar to a compression spring expands and assumes its original shape.
- a bellows suction cup is a low cost, easy to handle means for furthering the present invention. It is also advantageous that at least parts of the Faltenbalgsaugers remain stationary in the sheet moving means, at least in the period in which the movement of the two layers of the bag is relative to each other feasible.
- At least one holding device is provided, with which the bag in the sheet moving device is durable. This can be an extra
- the holding device comprises a
- Position holding device held stationary, so that, for example, the fluid flow is also directed exactly to the upper end of the bag A holding device may also be advantageous so that a feeding
- Transport device can release the bag within the sheet moving device, even before the transport device of the filling station grips the bag.
- the holding device can attack a few centimeters, a maximum of 10 cm, preferably a maximum of 5 cm and in particular a maximum of 2 cm below the upper bag edge on the bag, especially directly below the suction Since the holding device holds the two layers of the bag compressed, so too much fluid prevented in the interior of the bag, which in turn facilitates the subsequent filling of the bag.
- the holding device should also attack in the vertical direction at least 5mm below the upper bag edge to allow a relative movement of the layers
- the contact surface of the holding device may extend to the bag in the bag level in the horizontal direction. This direction can also be referred to as transverse direction.
- the holding device extends over a large part of the bag width, whereby “majority” means a proportion of more than 50%.
- the holding device comprises an interruption and / or a recess. Preferably, this is arranged substantially vertically below the suction device and / or below the point at which the fluid flow impinges on the upper end of the bag.
- a device for cooling a bottom weld seam is provided in the layer movement device.
- the cooling device comprises at least one cooling jaw, which is preferably arranged to rest against at least one of the two layers of the bag pivotally in the machine frame. The cooling jaw can be over the width extend the bag.
- the cooling jaw is traversed by a further fluid, preferably by a liquid or charged with this.
- the cooling device may comprise blowing nozzles, with which a gas, which is in particular cooled, is applied to the lower weld seam of the bag.
- the above object is further achieved by a method according to claim 19.
- a bag forming device with which from a hose material successively pieces of hose can be singled, the lower ends are each providable with a bottom to form open-topped bags, - a filling device for successively filling a product in the
- Holding devices with which the bags are durable within at least one of the aforementioned devices
- the filling device comprises as described above.
- the same advantages can be achieved as they have already been described in connection with a filling device according to the invention.
- the bags are each in separate facilities, which are often referred to as stations, generated, filled and sealed, and they never due to the transport and holding devices within the form-fill-seal device.
- FIG. 1 is a side view of an FFS machine, which the inventive
- FIG. 2 detailed view of a filling device according to the invention
- FIG. 3 view III-III of FIG. 2
- This device 1 shows a form-fill-seal machine 1, often called FFS machine for short, which is suitable for forming, filling and closing sacks and in which the filling device according to the invention can be preferably provided.
- This device 1 comprises a support arm 2, on which a winding 3 with tubular film 4 rests.
- the tubular film 4 preferably has gussets (not shown in FIG. 1).
- the transport rollers 5, which may be partly aueh driven, ensure a generally continuous development of the tubular film 4
- the transport roller 7, 8 and the feed roller pair 15 make a total known per se way that the tubular film 4 is moved intermittently on their further transport.
- the transport roller 8a is part of a register device 29, with which the length of the transport path of the tubular film 4 can be adapted to the format of the later bags 27.
- the transport roller 8a is arranged relative to the device 1 so as to be displaceable.
- To move is a manual or electric motor operated and known per se spindle drive available.
- With the feed roller pair 15, the tubular film 4 is pushed through the welding jaws 33 of a transverse welding station 13 and through a cross-cutting station 16.
- Transverse welding station 13 and the Querschneidestatton 16 can be moved in unspecified manner, for example by a parallelogram assembly 14 in planes orthogonal to the feed direction of the tubular film 4 to this and to this away.
- a piece of tubing 18 is separated above the gripper 17 in the cross cutting station 16 of the tubular film 4
- a transverse weld is attached, which the ground represents the tube piece 18 to be formed in the next working cycle of the device 1. Accordingly, 13 bottom seams are produced in the transverse welding station.
- the manufacture of the head or bottom seams may not only be effected by transverse welding, although preferably, but also other joining methods, such as gluing, are conceivable.
- the grippers 17 convey the tube piece 18 to a transfer point at which further grippers 19 grasp the tube piece 18 and transport it to a filling station 20.
- This transfer point is the layer movement device 30 of the filling device according to the invention.
- This layer movement device 30 can optionally cooperate with a bottom cooling device 31 Further details, construction and Function of the layer moving device will be shown below in connection with other figures.
- the hose piece 18 is transferred to stationary gripper 21 and opened by the suckers 22, so that the product which is passed through the filling device 23, can get into the hose piece 18.
- the tube piece 18 rests with its lower end on a conveyor belt 24, so that the hose piece 18 during the
- this bag 18 of the filling device 40 can be made available.
- the bag 18 first passes into the layer movement device 30.
- a holding device 41 is provided, with which the bag 18 is durable or is held.
- the holding device 41 is embodied by two holding bars 42, of which one each applies to an outer wall of the bag.
- a with the Machine frame connected lever mechanism may be provided so that an opening and closing movement is made possible.
- At least one fluid nozzle 43 is preferably arranged, which is preferably fastened to a frame-fixed bar 44.
- a fluid in the direction of the arrow 46 is given.
- the fluid preferably air, passes directly to the upper edge 47 of the bag 18 so that its two layers can separate from each other. Consequently, a layer of the bag is moved relative to a second layer.
- the bag 18 is at least partially opened, which is also shown in FIG. To further cause the relative movement of the layers of the bag 18 are alternative or in addition to the fluid nozzle
- Sucker 48 is provided, which are arranged above, ie counter to the direction z, of the holding device and can also be applied from the outside to an outer wall of the bag.
- each sucker 48 is arranged on a support 49, wherein the support may be arranged stably fixed or may be movable relative to the machine frame, for example by means of a lever mechanism, which, however, is not shown.
- the suction cups 48 may alternatively be arranged on holding jaws 42 of the holding device 41, so that the suction cups are already in contact with the bag outer sides when the holding jaws have been closed.
- the suckers 48 can be configured as Faltenbalgsauger or as Wellenbalgsauger, as shown in Figure 2 also.
- the operation is the following: After the sucker 48 is applied to the outer wall of the bag 18, this is acted upon by the vacuum bypass 50 with a negative pressure. Once the outer layer has been applied to the nipple 48, so that no air is sucked through between these two elements, the existing negative pressure causes a contraction of the nipple, so that the outer wall or the respective layer is moved. It is important that during this process, the carrier remain fixed in position, so to open the bag no movement carry out. Since this process takes place with both layers of the bag, the two layers are separated from each other in this way. If, in addition, a fluid entry continues through the fluid nozzle 43, a relative movement of the layers of the bag takes place not only in the region of the suction device, but also in the region between the suction devices 48 and the holding device 41
- means 51 for ionizing the fluid flow it is advantageous to provide means 51 for ionizing the fluid flow.
- two electrodes are provided, which are arranged on both sides of the fluid flow and between which an electrical voltage is applied.
- the fluid flow can be ionized so that it can reduce electrical charges at the layers of the bag.
- the result is that the layers are better separable from each other.
- the electrodes may be arranged in a mounted position, but are preferably connected directly to the fluid nozzle 43.
- the fluid flow can be interrupted.
- a valve 52 is provided in the fluid line 45, with which the fluid flow is interruptible.
- the oppression acting on the nipple 49 is interrupted or reduced.
- the opening of the bag for the purpose of its filling is much more reliable in the prior art, however, it is observed that the suction cups 22 during the opening process to contact the Losing sack or the two layers do not get separated from each other, so that it is not opened in the end.
- FIG. 3 now shows the view Ifl-II! of Figure 2
- two fluid nozzles 43 are now seen, both of which are arranged on the bar 44, wherein these occupy an angle with respect to the direction z.
- the position of the fluid nozzles can be symbolized by the arrows S.
- This direction may also be referred to as the main flow direction, wherein, however, it is provided that the fluid flow fan out by means of the fluid nozzles, which is represented in each case by a plurality of arrows 48.
- the two fluid nozzles are offset from the imaginary center line 64 of the bag 18 to the outside, ie in the direction of the vertical sack edges. As a result, it is possible to increase the area of influence of the fluid flow in terms of area and even increase it with the area of the center line 84.
- the devices 51 for ionizing the fluid flow are not shown in FIG. It should be emphasized, however, that preferably at least one such device 51 is assigned to each fluid nozzle 43.
- the holding bars 42 of the holding device 41 are the holding bars 42 of the holding device 41. It is shown by way of example that the holding bars 42 do not have to be integral, but can be interrupted in order to allow the sack material to open in the middle region. In a further development, it can be provided that the holding beams can be moved in or against the direction y, so that the Sackmateriaf still additional space for movement can be given.
- the suckers 48 of which only one is visible, may be displaced with respect to the center line 64, which will be explained in more detail with reference to FIG. It can also be seen that the suckers 48 are positioned near the upper sack edge 66 or touch them. An overlap is also possible. This means that the sucker can partially extend beyond the upper edge of the bag.
- FIG. 4 shows the view IV - IV from FIG. 3.
- the sack comprises 18 gussets 65.
- the suckers 48 opposite the center line may be shifted in the direction of the side edges. This has the purpose that the suckers do not suck each other, because in this case could be no opening of the bag.
- the fluid nozzles 43 can be rotated about their own longitudinal axis in the direction R relative to the plane spanned by the sack 18. It is thereby achieved that the fluid flow in each case reaches the sack edge 66, even if the fluid nozzle 43 does not point exactly into the plane spanned by the sack 18.
- FIG. 4 a variant embodiment is shown in which the retaining bars 42 are not interrupted, as explained with reference to FIG. 3, but only has recesses 67, which likewise allow the bag material to move.
- the holding bars 42 are shown as open, which does not need to be the case. This serves only for better clarity.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018202499 | 2018-02-19 | ||
DE102018206356.7A DE102018206356A1 (en) | 2018-02-19 | 2018-04-25 | Filling device and method for filling sacks, each with an unclosed upper end |
PCT/EP2019/052681 WO2019158386A1 (en) | 2018-02-19 | 2019-02-05 | Filling device and method for filling bags with a respective unsealed upper end |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3755631A1 true EP3755631A1 (en) | 2020-12-30 |
Family
ID=68053406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19703678.3A Pending EP3755631A1 (en) | 2018-02-19 | 2019-02-05 | Filling device and method for filling bags with a respective unsealed upper end |
Country Status (4)
Country | Link |
---|---|
US (1) | US11591123B2 (en) |
EP (1) | EP3755631A1 (en) |
CN (1) | CN111971230B (en) |
DE (1) | DE102018206356A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020182542A1 (en) * | 2019-03-14 | 2020-09-17 | Tetra Laval Holdings & Finance S.A. | Packaging machine for producing sealed packages |
IT202000012166A1 (en) * | 2020-05-25 | 2021-11-25 | Perfect Pack S R L | PACKAGING MACHINE |
US11603226B2 (en) * | 2020-09-13 | 2023-03-14 | Westrock Shared Services, Llc | Pack to pouch systems |
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2018
- 2018-04-25 DE DE102018206356.7A patent/DE102018206356A1/en active Pending
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2019
- 2019-02-05 CN CN201980014207.5A patent/CN111971230B/en active Active
- 2019-02-05 US US16/970,485 patent/US11591123B2/en active Active
- 2019-02-05 EP EP19703678.3A patent/EP3755631A1/en active Pending
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CN111971230B (en) | 2023-11-03 |
DE102018206356A1 (en) | 2019-10-17 |
US20200369417A1 (en) | 2020-11-26 |
US11591123B2 (en) | 2023-02-28 |
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