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
  • 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
  • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
  • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
  • B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
• • 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
  • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
  • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
• • 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
  • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
  • B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
  • B65B3/17—Methods of, or means for, filling the material into the containers or receptacles for filling valve bags

Definitions

• the invention relates to a device for attaching valve bags and more particularly to a device for attaching valve bags to a filler neck of a packing machine.
• Such devices or slip-on machines have become known in the art.
• DE 35 25 348 C2 discloses a device for attachment to the filler neck or the filler neck of a packing machine, are provided in the two suction bars, which seize on both sides of the bag valve a scattered bag and open the bag valve. Subsequently, the bag is accelerated with open bag valve via drive means and shot in the direction of the filling tube.
• the gripper bars are arranged to open the bag valve in the longitudinal direction fixed, as well as it is the drive means.
• a device for attaching valve bags to a filler neck of a packing machine has become known.
• the bag valve of the uppermost valve bag is gripped by a suction stack and the valve bag by a slider or by means of a pressed-drive roller inserted laterally into a receiving element of a supply or conveyor belt, wherein the movement of the suction strip and the pressing of the drive roller for lateral transfer in the supply or conveyor belt is positively coupled.
• BESTATIGUNGSKOPIE A disadvantage of these known devices is that the distance of the slip-on device to the packaging machine is usually immutable. Since different bag sizes can be driven on a packaging machine, it has been found that it comes at smaller sack widths increasingly errors when plugging or when shooting up the bags. It has been found that this is due to the greater distance between the end of the drive means of the slip-on machine and the beginning of the filler neck.
• a device is desirable in which the distance between the end of the drive means and the filler neck is adjustable. Since the displacement of the whole slip-on is too complex, a device was constructed in which the gripper bar is arranged to open the bag valve in the transport direction of the bag stationary, while the drive means is provided adjustable in the longitudinal direction. Thus, in a stationary provision of the valve bags, the gripper bar always take in the same place the bags, while the drive means is adjusted in the longitudinal direction depending on the width of the bags to always maintain an optimal distance from the filler neck of the packing machine, so each one substantially optimum clipping result is achieved.
• the gripper device for gripping the bags is now stationary, while the drive means is arranged displaceable in the longitudinal direction. Furthermore, the gripper is provided pivotable about a longitudinal axis, while the drive means comprises two pivotable components which can accelerate the bag in the closed state and shoot up on the filler neck.
• the device according to the invention is provided for attaching valve bags to one or more filling nozzles of a packaging machine.
• the device according to the invention comprises at least one plug-on head, on which a pivotable gripper device and a slip-on device are provided.
• the gripper device is provided and suitable to achieve a valve bag of a arranged on a Aufnähmetlache a filing table bag bundle in a first pivot position and record and transfer in a second pivot position to a slip-on.
• the Aufsteck Marie is in turn provided and suitable to open the valve of a valve bag and to accelerate the valve bag for plugging.
• the Aufsteck raised according to the invention consists of at least two Aufsteck time, of which at least one Aufsteckteil example, is pivotally mounted, while the other Aufsteckteil can not be provided pivotably or pivotally.
• a common drive is provided for the pivoting of the gripper device and for the pivoting of the pivotable plug-on part.
• the gripper device mechanically coupled to the pivotable Aufsteckteil via a coupling mechanism.
• the invention has many advantages. It is particularly advantageous that only a common drive for VerSchwenkung with the gripper device and the pivoting of the individual parts or components of the slip-on is needed because the individual components are connected via a coupling mechanism.
• the positively controlled mechanical coupling of the gripper device and the pivotable parts of the slip-on always leads to a precisely defined spatial position of the different parts to each other, so that a collision of the individual parts with each other is not possible in principle. This eliminates a significant amount of time, which must be considered in conventional solutions, since no safety times between the individual movements must be observed. Rather, different movements can be started simultaneously in a coordinated manner.
• the slip-on device is arranged to be adjustable in the longitudinal direction relative to the gripper device in order to be able to compensate for different bag dimensions when plugged on.
• the coupling mechanism comprises a toggle lever. This is advantageous because a toggle allows transmission of one-end fast motion to slow-to-slow motion at the other end and vice versa.
• the toggle lever engages on a slide bar and is slidably mounted thereto in a longitudinal direction.
• the slip-on device is displaceably arranged along the slide bar, so that a stationary push-fit device is made possible with stationary gripper device in order to be able to compensate for different bag dimensions during processing.
• the Aufsteck driving has two pivotable Aufsteckmaschine and is composed of the total of the two pivotable Aufsteck turnover together.
• a Aufsteckteil in particular an opening element of an opening device in order to open the bag valve of a yogasteckenden bag.
• the slip-on device or each slip-on part has an element of the acceleration device, so that upon pivoting of the two pivotable slip-on parts in each case an opening element and an acceleration element is pivoted.
• one and in particular exactly one plug-on part is provided so as to be pivotable about the slide bar or a rotationally connected rotary bar. Furthermore, it is possible that the gripper device is provided pivotably about the rotatably connected to the slide bar rotating rod.
• the gripper device preferably comprises a suction strip with a plurality of suckers, wherein preferably individual, depending on the bag dimensions Suction cups can be switched off, so that the number of vacuum actuated vacuum cleaner is variable.
• a hydraulic cylinder, a pneumatic cylinder or a vacuum cylinder may be provided to periodically seize a bag and set up.
• a motor and in particular an electric motor as a common drive is also preferred.
• a control device is used to control the motor.
• the control device controls the rotational speed of the motor or a motor device such that the drive shaft of the motor device rotates substantially continuously.
• the rotational speed of the motor device is periodically increased and decreased again to allow a gentle operation, in spite of the largest possible Aufsteck Fern the respective rotational speed is minimal or almost minimal.
• the slip-on device comprises a bag-opening device, wherein the opening device preferably in each case has an angled sheet metal on the two plug-on parts.
• the two angled plates result in the mutually pivoted position overall an approximately rectangular and in particular even almost square cross-section, with a diagonal from corner to corner horizontal and the other diagonal from corner to corner is oriented approximately vertically.
• the length of the horizontal diagonal is smaller than the width of the bag valve, so that a top-held in the middle of the bag valve opens automatically when pivoting the angled metal sheets.
• the slip-on device comprises an acceleration device, which comprises a roller bar on a plug-on part.
• the Acceleration device further a belt drive on the other Aufsteckteil.
• Figure 1 is a schematic plan view of a system with a packing machine and a device for attaching Venti1sacken.
• FIG. 2 shows an overall view of the device according to the invention for attaching valve bags
• FIG. 3 is a perspective view of the plug-on head of the device of FIG. 2 in a first position
• FIG. 5 shows the plug-on head of the device according to FIG. 2 in a third position
• FIG. 6 shows the plug-on head of the device according to FIG. 2 in a fourth position
• Fig. 7 shows a further plug-on head for a device according to
• FIG. 2 in a position corresponding to FIG. 5;
• FIG. 8 shows the plug-in head according to FIG. 7 in a position corresponding to FIG. 6.
• valve bags 2 are formed and used for attaching valve bags 2 on the or the filler neck of a packaging machine 1 and may be part of a system 80.
• FIG. 1 shows a plant 80 which has a packaging machine 1 for filling products into sacks 2, a slip-on machine 10 and a discharge belt 70 for removing the filled valve sacks 2.
• the packing machine 1 is designed here as a rotating filling system with a plurality of filling nozzles 27, onto which the valve sacks 2 to be filled are plugged with the slip-on machine 10.
• the packing machine 1 rotates in the direction of rotation 48, while the plugged valve bags 2 are filled.
• the ready-packed valve bags 2 are deposited on the discharge belt 70 and thus transported away.
• such sacks 2 are made with building materials, such as e.g. Cement or automatically filled with other powdery or granular substances.
• the rotating packaging machine 1 shown in FIG. 1 is used. It is also possible to use a row packer.
• the plurality of filling nozzles 27 are arranged distributed symmetrically over the circumference.
• the device 10 shown in Fig. 2 for attaching the valve bags 2 is arranged in a predetermined angular position of the packaging machine 1.
• Modern packaging machines 1 with a number of eight or twelve or even sixteen or even more filling nozzles 27 have enormous throughput capacities at which filling rates on the order of 1 sack per second or more are possible. That means pro Hour about 3000 to 5000 bags are filled, which represents an enormous logistical requirement.
• slip-on machines 10 have become known in which a blank bag magazine 30, the bags 2 for the slip-10 is temporarily stored.
• the bag bundles 3 are automatically fed to the delivery table 7 and first transported to a waiting area 28 and then to a receiving area 6, where they are lifted off individually. Subsequently, the valve of the valve bag 2 is opened and the valve bag 2 is shot onto the filler neck 27 of the packing machine 1.
• the plug-on head 20 of the slip-on machine 10 according to the invention is shown in four different positions in an enlarged perspective view, wherein in the illustrations according to FIGS. 3 and 4 the plug-on head 20 is shown in the position for processing wide bags 2, while in the illustrations according to FIGS. 5 and 6 the plug-on head 20 is set to the processing of narrower sacks 2.
• the plug-on head 20 of the plug-on machine 10 shown enlarged in the perspective view according to FIG. 3, comprises a housing 32 for the storage and arrangement of the various components.
• the gripper device 4 is pivotally provided, which comprises a suction bar 19, which is in a first pivot position 8 in the bag receiving position and the uppermost valve bag 2 of a stacked flat stacked valve bags 2 sack bundle 3 takes.
• the suction strip 19 has a plurality of suction devices 33 which are spaced apart from one another in the longitudinal direction 13 and which can preferably be individually switched on and off in order to adapt the active length of the suction strip to the current bag width 34.
• a Aufsteck issued 5 is arranged on the housing 32, which consists of two Aufsteck tone 11 and 12, of which the Aufsteckteil 11 is pivoted respectively when opening or closing.
• the Aufsteck driven 5 includes the Aufsteckmaschine 11 and 12, wherein at each Aufsteckteil an angled plate 22 and 23 a Sackventilö Anlagens heard 21 is provided. Furthermore, a roller bar 25 is provided on the attachment part 11 and a belt drive 26 on the attachment part 12. The roller rail 25 and the belt drive 26 form an acceleration device 24. The belt drive 26 serves to drive and accelerate one between the roller rail 25 and the belt drive 26 Sacks 2.
• the roller bar 29 serves to guide the bag 2 when plugging in and is opened only in case of failure.
• the pressure cylinder 49 presses the roller bar 29 uniformly against the belt drive 26th
• the plug-on head 20 is shown in a position in which the suction pad 19 is pivoted to the first pivot position to lift a new bag 2 from the bag bundle 3.
• the suction cups 33 of the suction bar 19 engage the bag in the blind valve area.
• the slip-on device 5 or its slip-on part 11 is pivoted, i.e. pivoted. apart driven position shown.
• the movement of the Aufsteckteils 11 and the gripper device 4 with the suction bar 19 are mechanically positively coupled via the coupling mechanism 15, so that automatically moves the Aufsteck worn 5 in a movement of the gripper device 4.
• the movement is controlled by a drive 14, which is here designed as a piston-cylinder unit, whereby a fast and precise movement even in dusty environments over long periods of time is possible.
• the drive 14 engages here directly on the pivot arm 37 of the slip-5 on which the torque on the pivot axis 41 transmits to the lever 36, which in turn transmits via the pivot point 42, the torque to the lever 39 and finally to the lever 40.
• the thus formed two toggle levers 16 and 17 control the movement of the gripper device 4 and 5 Aufsteck issued such that collisions are avoided, while at the same time a substantially maximum operating speed and reliability is achieved.
• the suction bar 19 and the gripper device 4 are located in Fig. 4 in the bag transfer position for transferring the valve bag 2 to the slip-5.
• the transmission of the pivoting movement to the gripper device 4 takes place by the lever 40, which is pivoted about the pivot point 46 and thereby causes a movement of the pivotable about the pivot point 43 first coupling rod 44 and the second coupling rod 45, and the lever 47.
• the first coupling rod 44 is formed here by a spring means 38 in the form of a pneumatic cylinder to compensate for different bag bundle strengths.
• the bag valve is opened by the closing operation of the angled plates 22 and 23 of the bag opening device 21, while the bag extends down between the roller bar and the belt drive 26 , After opening the valve, the belt drive 26 is activated and the bag is shot in the longitudinal direction 13 on a filler neck 27 of a packing machine or filling 1.
• the suction pad 19 is located in the second pivot position. 9
• the states of the plug-on head 20 shown in FIGS. 5 and 6 basically correspond to the states shown in FIGS. 3 and 4, but the plug-on head 20 is set to process narrower bags 2.
• the slip-on device 5 In order to keep the distance to be bridged from the end of the slip-on device 5 to the beginning of the filler neck even with narrower sacks 2 to a constant and as small as possible, the slip-on device 5 is moved in the longitudinal direction 13. This results in a transfer from the state shown in Fig. 3 by longitudinal displacement of the state shown in Fig. 5.
• the gripper device 4 has kept its position stationary, since the receiving surface 6 of the tray table 7 remains stationary.
• the coupling mechanism 15 allows a very comfortable and reliable operation of Aufsteckautomates 10, since the slip-5 is mounted relative to the gripper device 4 on the slide bar 18 slidably.
• the coupling mechanism 15 which acts on the slide bar 18, it is ensured that even in the position shown in Fig. 5 for narrower bags 2, the drive 14 reliably coordinated pivoting movements of the gripper device 4 and 5 Aufstecêtificat causes.
• Fig. 6 the state is shown with closed slip-5, in which a blind valve of a non-illustrated Sacks would be opened by the opening device 21, so that the bag 2 could be shot onto a filler neck 27.
• FIGS. 7 and 8 show a further exemplary embodiment of a plug-on head 20, wherein the compressed-air cylinder serving as a common drive 14 in the preceding exemplary embodiments has been replaced by an electric motor 50 and an eccentric disk 51 designed as a crank disk.
• the plug-on head 20 according to FIGS. 7 and 8 is constructed, apart from the drive 14, substantially equal to the plug-on head 20 from the preceding exemplary embodiment, so that replacement of the plug-on heads 20 on existing machines is generally possible.
• the plug-on head 20 has been shown in Figures 7 and 8 in positions corresponding to those shown in Figures 5 and 6.
• the plug-on head 20 is shown in FIG. 7 in a position corresponding to the third position of the plug-in head 20 of FIG. 5 and FIG. 8 shows the plug-in head 20 in the fourth position, in which also the plug-in head 20 in FIG is shown.
• the motor 50 is rotated as continuously as possible. This means that the speed of the motor 50 is periodically increased and decreased again to ensure a continuous movement of the gripper device 4 and the plug-on device 5 with the Aufsteck tone 11 and 12. This allows for strong accelerations and strong decelerations due to start / stop operations during the movement are largely or even completely avoided. This reduces the load on the components used and can increase the life and reliability.
• the engine 50 does not stop during operation, but rotates faster and slower, depending on the time.
• the rotational speed is reduced, for example, proportionally to the angle of rotation still to be covered. It is not only a continuous adjustment of the rotational speed, but also a stepwise change possible.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Supplying Of Containers To The Packaging Station (AREA)
• Fluid-Driven Valves (AREA)
• External Artificial Organs (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=40225298

Family Applications (1)

Country Status (8)

Cited By (2)

Families Citing this family (10)

Family Cites Families (10)

• 2007
  • 2007-09-29 DE DE102007046776A patent/DE102007046776A1/de active Pending
• 2008
  • 2008-09-26 DE DE502008002908T patent/DE502008002908D1/de active Active
  • 2008-09-26 EP EP08802649A patent/EP2197749B1/fr active Active
  • 2008-09-26 ES ES08802649T patent/ES2362056T3/es active Active
  • 2008-09-26 CN CN200880109489.9A patent/CN101861271B/zh active Active
  • 2008-09-26 WO PCT/EP2008/008196 patent/WO2009043541A1/fr active Application Filing
  • 2008-09-26 AT AT08802649T patent/ATE501938T1/de active
  • 2008-09-26 EA EA201000575A patent/EA017837B1/ru not_active IP Right Cessation
  • 2008-09-26 DK DK08802649.7T patent/DK2197749T3/da active

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events