US20110253257A1 - Device and arrangement for filling processing stations - Google Patents

Device and arrangement for filling processing stations Download PDF

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Publication number
US20110253257A1
US20110253257A1 US13/088,122 US201113088122A US2011253257A1 US 20110253257 A1 US20110253257 A1 US 20110253257A1 US 201113088122 A US201113088122 A US 201113088122A US 2011253257 A1 US2011253257 A1 US 2011253257A1
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United States
Prior art keywords
transfer chamber
processing stations
arrangement
working material
tank
Prior art date
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Abandoned
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US13/088,122
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English (en)
Inventor
Wolfgang FASS
Andreas Henke
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Individual
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Individual
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Publication of US20110253257A1 publication Critical patent/US20110253257A1/en
Abandoned legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F13/00—Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/64—Gates or closures having multipart closure members, the parts being brought into closing position one by one according to need
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/66—Operating devices therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
    • G01F11/30—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement with supply and discharge valves of the lift or plug-lift type
    • G01F11/34—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement with supply and discharge valves of the lift or plug-lift type for fluent solid material

Definitions

  • the present invention pertains to a device for filling processing stations with a pumpable working material (operating substance).
  • the present invention pertains, furthermore, to an arrangement for filling processing stations with a pumpable working material, with a central tank for the working material and with two or more processing stations and a feed line for feeding the working material to one of the processing stations.
  • a concrete application of the present invention is the preparation of hot-melt adhesives for a heat-sealing means, for example, in packaging machines.
  • the heat-sealing means is thus a processing station in this case.
  • the hot-melt adhesive is provided as bulk material, especially in the form of granular material, also designated as pellets, and is usually stored in tanks directly at the heat-sealing means.
  • Each heat-sealing means has its own tank with a corresponding capacity, into which the granular material is filled.
  • the drawback in this case is that the environment of the tank is very hot, such that the personnel may be burned while filling the tank.
  • the granular material was already prepared in drums and the tank of the heat-sealing means was refilled from the drum via a corresponding refill line. Exactly one tank is assigned to each drum in this case.
  • the workforce is reduced here, since the drum has a greater capacity than the tank.
  • the personnel must still always monitor that the drums are replaced in a timely manner.
  • the conveying track, via which the granular material is conveyed is highly limited in this variant, such that drums have to be set up close to the respective heat-sealing means. These drum locations are often not easily accessible sites.
  • it has been shown in practice that the granular material easily becomes lumpy in the drums.
  • the arrangement according to the present invention includes a device with a transfer chamber that is assigned to a central tank for the working material.
  • the transfer tank of the invention may be provided in a combination with features according to DE 20 2009 005 561 U1 which is hereby incorporated by reference in its entirety.
  • the transfer chamber is assigned to the processing station, in such a way that the working material can be conveyed at first from the central tank into the transfer chamber and from there to the processing station.
  • the central tank may be arranged at an easily accessible site as well, such that it can be refilled in a simple manner. Therefore and because of a greater capacity, the central tank can be refilled almost free from contaminations and arranged at a distance from the processing stations, i.e., mainly the heat-sealing stations, such that the risk of injury, especially the risk of getting burned, is avoided. Contaminations that may still possibly occur involve contaminants that pass at a distance from the processing station and can be easily removed.
  • the present invention is mainly intended for supplying a plurality of the processing stations, including a heat-sealing means according to the above example, from a common central tank with the working material, granular material of the hot-melt adhesive. In this way, only one more central tank needs to be monitored, as a result of which the operating cost is considerably reduced.
  • An object of the present invention is to provide an effective transfer chamber for an arrangement for supplying processing stations with pumpable substances, and especially for processing stations according to DE 20 2009 005 561 U1.
  • a bottom surface deepening towards a sump in a funnel-like manner is provided at the bottom of the transfer chamber.
  • the sump may be provided in the center in the bottom of the transfer chamber, but also off-center, for example, laterally.
  • the sump should be embodied as a blind hole and have a diameter that corresponds approximately to the internal diameter of the discharge opening or of the feed tube. Also, as a result of this, the working material can be easily blown out of the transfer chamber. Conveying tracks (paths) of about 100 m and a height difference of up to 25 m can be overcome with such an equipped pilot plant.
  • This alternative embodiment of the transfer chamber is also conceivable independent of the device and arrangement according to the present invention.
  • the transfer chamber can be closed upwards towards the central tank by means of a ball valve.
  • a closing means such ball valves have a ball provided with a passage hole. If this ball is brought into its closed position, the granular material remains behind in the passage hole, which then becomes lumpy already at room temperature and consequently clogs the passage hole even in the open position.
  • the closing means is also open towards the transfer chamber even in the closed position. As a result of this, granular material remaining behind in the closing means can always flow out into the transfer chamber and thus not clog the closing means.
  • two or more transfer chambers may be assigned to the central tank, whereby a processing station is respectively assigned to each transfer chamber. This may result in that a particular line for the working material is always guided to a particular processing station from each of the transfer chambers.
  • the central tank is provided with only one transfer chamber, to which two or more processing stations are then assigned.
  • the transfer chamber is connected to a concrete processing station by means of switches in the line, respectively, such that only one concrete line is always switched between the transfer chamber and the respective processing station.
  • This variant may be designated as a tree structure, in which, starting from the transfer chamber the trunk, a plurality of branchings arise.
  • the tree structure it is also possible to assign two or more transfer chambers to the central tank, such that an own tree structure then starts from each transfer chamber.
  • two processing stations arranged within the one tree structure may also at the same time be supplied with working material, if this should be necessary.
  • this can be embodied by a ring line that starts from a transfer chamber and ends in another transfer chamber. Then, a line from the processing station to be filled is always switched to the transfer chamber placed next to it—once around to the right and once around to the left, such that two processing stations can always be filled at the same time.
  • the working material is fed from the transfer chamber at first to a means for separating the pressurizing means, i.e., for example, compressed air, and is conveyed from there in an unpressurized manner into the tank of the processing station.
  • a means for separating the pressurizing means i.e., for example, compressed air
  • the granular material of the hot-melt adhesive was conveyed from the drum by means of compressed air into the tank of the processing station, this also led to a cooling of the heat-sealing means.
  • the heat-sealing means was partly cooled below the melting point of the hot-melt adhesive, which led to disturbances in the operating sequence. Since, according to the present variant, the compressed air is already separated beforehand and the working material flows into the tank in an unpressurized manner, this risk is avoided.
  • FIG. 1 is a schematic lateral view showing an adhesive supply according to DE 20 2009 005 561 U1;
  • FIG. 2 is a top view showing a transfer chamber with the features of the present invention
  • FIG. 3 is a vertical sectional view showing the transfer chamber according to FIG. 2 taken in plane XI-XI;
  • FIG. 4 is a bottom view showing a transfer chamber with the transfer chamber being according to FIG. 2 ;
  • FIG. 5 is a schematic lateral view showing another exemplary embodiment with a transfer chamber according to FIG. 2 for an arrangement with the features of the present invention
  • FIG. 6 is a perspective view showing a ventilating means for the arrangement according to FIG. 5 ;
  • FIG. 7 is a perspective top view showing a cover for a working material tank of a processing station.
  • FIG. 1 the arrangement shown in FIG. 1 includes a central tank 10 with transfer cartridges 11 arranged under the central tank.
  • Central tank 10 is mounted on columns 12 by means of vibration dampers 13 on a basic frame 14 .
  • a control box 15 for controlling the device is assigned to the central tank 10 .
  • FIG. 1 shows, as representative of a random number of processing stations, a processing station, in particular a heat-sealing means 16 .
  • a working material a granular material of a hot-melt adhesive in the present case, is fed by means of a feed line 17 at first to a ventilating means 18 , the significance of which will still be explained further below.
  • This ventilating means 18 is located above the heat-sealing means 16 , specifically above a tank of same, so that the working material can flow in an unpressurized manner from the ventilating means 18 into the tank of the heat-sealing means 16 .
  • the feed line 17 is connected to the transfer cartridge 11 via a feed tube 28 .
  • FIGS. 2 and 3 show a transfer chamber 42 according to the invention, which replaces the transfer cartridge 11 in the arrangement according to FIG. 1 .
  • This transfer chamber 42 is embodied as a cylindrical, specifically a circular cylindrical, hollow body.
  • the transfer chamber 42 has a bottom 43 , which forms a bottom surface 44 , which deepens towards the center in a funnel-like manner and then passes over into a central sump 45 , embodied as a blind hole in the present case.
  • the transfer chamber 42 is closed by a cover 46 , which has a screw socket 47 , at the top, i.e., at an end opposite the bottom 43 .
  • the screw socket 47 is provided with a male thread 48 on its outside, but may, in addition or as an alternative, also be embodied with a nut on its inside. Furthermore, screw socket 47 has a passage hole 49 , which communicates with the internal cavity of the transfer chamber 42 .
  • a ball valve 50 which has for this purpose a nut 51 communicating with the male thread 48 of the screw socket 47 , is screwed onto the screw socket 47 . If the screw socket 47 should have a female thread, the ball valve 50 is, of course, provided with a corresponding male thread. All other prior-art connecting techniques, for example, a bayonet catch between the transfer chamber 41 and ball valve 50 , are also possible. Otherwise, the ball valve is embodied in the commercially available manner and is actuated via a motor actuation means 52 .
  • a discharge tube 53 which communicates with a pressurizing means in the form of a compressed air nozzle 54 , with pressurized air source, which is arranged in the sump 45 of the bottom 43 .
  • the compressed air nozzle 54 may be designed as a venturi nozzle and protrudes with its opening up to into the discharge tube 53 .
  • the end 59 visible in FIG. 2 within the sump 45 bends and extends downwards and communicates with a compressed air connection.
  • the diameter of the sump 45 is approximately and preferably exactly as large as the internal diameter of the discharge tube 53 .
  • FIG. 4 shows a bottom view of a central tank 55 , which is equipped with the transfer chambers 42 .
  • a central tank 55 which is equipped with the transfer chambers 42 .
  • the transfer chambers 42 can be connected via the ball valves 50 .
  • a vibrating means 60 with which this central tank 55 is also equipped.
  • the transfer chamber 42 is filled with a volume of the granular material, which corresponds to the volume that can be accommodated by the tank of the heat-sealing station 16 .
  • the ball valve 50 is opened in a time-controlled manner or via corresponding filling level sensors in the transfer chamber 42 , until the respective filling level in the transfer chamber 42 is reached and the ball valve 50 is then closed again.
  • a pressurizing means is sent to the compressed air nozzle 54 .
  • the duration of the pressure surge is again measured in a time-controlled manner, so that the transfer chamber 42 is completely emptied and the granular material is fed to the tank of the heat-sealing station 16 .
  • the granular material Due to the pressure surge the granular material, as described above based on the transfer chambers 42 , is conveyed from the transfer chamber 42 . In this case, the flow in the transfer chamber 42 is facilitated (the material breaks down) because of the special shape of the bottom 43 in the transfer chamber 42 , so that the granular material is accelerated at a high speed. In a pilot arrangement equipped with this transfer chamber 42 , the granular material could be conveyed a distance of approximately 100 m, and a height difference of 25 m could be overcome.
  • the ball valve 50 is provided with a ball, which is provided with an opening, which is open towards the transfer chamber 42 even in the closed position of the ball valve, such that the granular material can always flow from the ball into the transfer chamber 42 .
  • the ball can be provided with a corresponding groove or be embodied as a shell.
  • the device according to the present invention and arrangement according to the present invention were described above based on the example of supplying heat-sealing means with heat-sealing granular material, i.e., a bulk material.
  • the present invention is suitable for all pumpable working materials, i.e., not only for bulk materials, but also for gel-like or pasty substances and liquids.
  • the device according to the present invention and arrangement according to the present invention are also suitable for any other type of processing stations as heat-sealing means.
  • exactly one transfer chamber 42 is always assigned to each processing station (heat-sealing station 16 ).
  • an own (dedicated) or a common ventilating means 18 may also be assigned to each transfer chamber 42 depending on the needs.
  • two or more processing stations 16 are assigned to a transfer chamber 42 , which are then assigned by means of switches to the transfer chamber 42 . It is important only that only one processing station 16 is always presently assigned to the transfer chamber 42 .
  • FIG. 5 is based on the central tank 55 according to FIG. 4 and has the transfer chamber 42 from FIGS. 2 and 3 as a transfer chamber. Specifically, two transfer chambers 42 are shown.
  • the central tank 55 may also be provided with only one transfer chamber 42 or even three or more transfer chambers 42 .
  • a main pipeline 61 which branches into two main branches 63 and 64 at a first switch 62 , starts from the transfer chamber 42 .
  • the switch 62 is, like all other switches still to be described further below as well, embodied as a three-two-way ball valve. That is, a total of three lines are assigned to the ball valve, whereby in the present case one inflow and two outflows are provided, respectively, and in particular in the case of switch 62 the main pipeline as inflow and the main branches 63 and 64 as outflow.
  • the main branch 63 ends at another switch 65 . 1 , from which a branch line 66 . 1 branches off at an outflow. This in turn opens out in a switch 65 . 2 , one outflow of which ends at a branch line 66 . 2 . This goes on with a selectable number n of switches.
  • the second and possibly another other main branch 64 opens out into a first switch 67 . 1 , leads from the one first branch line 68 . 1 to another switch 67 . 2 and so forth until a selected number of m switches 67 is reached in this case as well.
  • the ventilating means 69 has a tube-like, cylindrical filter 70 , whose jacket surface is made of a filter material, a screen in the simplest case.
  • the mesh size of the screen is such that the working material cannot pass through the screen, but the air transporting the working material can.
  • a funnel-like tapered section 71 which opens out into a down pipe 72 , is provided under the screen 70 .
  • the internal diameter of the down pipe 72 is smaller than the internal diameter of the filter 70 because of the tapered section 71 .
  • the working material is easily retained in the area of tapered section 71 , is thus slowed down in its speed, without leading to a complete clogging. Because of the easy retaining of the working material in the area of the tapered section 71 , the compressed air escapes through the filter 70 and the working material flows in an unpressurized manner to the processing station 16 .
  • the tanks of the processing stations 16 are usually closed with a cover.
  • the cover In the case of heat-sealing machines, the cover is even insulated in order to minimize the escape of heat that is used to melt the hot-melt adhesive in the tank.
  • the tank should therefore be closed with a cover, as this is shown schematically by the cover 73 in FIG. 5 .
  • the cover 73 itself is shown in detail in FIG. 7 .
  • the cover 73 has an opening (not visible in FIG. 7 ), through which the working material can flow. This opening is closed by a cap 74 , which in the present case is mounted pivotably about an axis 75 at the cover 73 .
  • Another ventilating means 76 which likewise has a cylindrical filter 77 as a jacket, similar to the ventilating means 69 , is arranged at the cap 74 .
  • the down pipe 72 is connected to this ventilating means 76 at the top.
  • the ventilating means 76 With the cap 74 open, the ventilating means 76 is in alignment with the opening in the cover 73 , such that the working material can flow through the opening.
  • the cap 74 is pivoted into the closed position under elastic deformation of the down pipe 72 .
  • the cap 74 now closes the opening in the cover 73 .
  • a collecting means 78 in which vapors are collected and are disposed of, for example, once daily by cleaning the collecting means 78 , is assigned to the cap 74 in its closed position.
  • an insulating plug may possibly also be provided here, which is charged into the opening in cover 73 with cover 73 insulated from the underside and thus provides for a continuous insulation as much as possible without heat bridges.
  • the cap 74 is actuated by a pneumatic cylinder 79 in a manner known per se. It is understood that the main branches 63 and 64 must not themselves be connected directly via the switches 65 and 67 , respectively, to processing stations 16 , but can themselves branch off into other forearms. Also, only a single main branch may be provided, which then connects directly to the transfer chamber 42 . Furthermore, it is, of course, also conceivable to mix the different concepts of the arrangement according to FIG. 1 and FIG. 7 with one another and to assign them to the same central tank.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Basic Packing Technique (AREA)
US13/088,122 2009-04-16 2011-04-15 Device and arrangement for filling processing stations Abandoned US20110253257A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202009005561U DE202009005561U1 (de) 2009-04-16 2009-04-16 Vorrichtung und Anordnung zum Befüllen von Verarbeitungsstationen
EPEP10160122.7 2010-04-16

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US20110253257A1 true US20110253257A1 (en) 2011-10-20

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EP (1) EP2241867B1 (de)
DE (1) DE202009005561U1 (de)

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US20160083200A1 (en) * 2012-12-20 2016-03-24 Henkel Ag & Co. Kgaa Device for conveying an operating material
US11447866B2 (en) 2020-06-17 2022-09-20 Applied Materials, Inc. High temperature chemical vapor deposition lid

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DE102011001276B4 (de) 2011-03-15 2018-05-09 Symelt Gmbh Entlüftungsvorrichtung
US9499355B2 (en) * 2012-10-26 2016-11-22 Nordson Corporation Pedestal for supporting an adhesive melter and related systems and methods
DE202023107441U1 (de) 2023-12-15 2024-01-03 Symelt Gmbh Vorrichtung zum pneumatischen Befüllen von Verarbeitungsstationen

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US20160083200A1 (en) * 2012-12-20 2016-03-24 Henkel Ag & Co. Kgaa Device for conveying an operating material
US9688486B2 (en) * 2012-12-20 2017-06-27 Henkel Ag & Co. Kgaa Device for conveying an operating material
US11447866B2 (en) 2020-06-17 2022-09-20 Applied Materials, Inc. High temperature chemical vapor deposition lid
US11732358B2 (en) 2020-06-17 2023-08-22 Applied Materials, Inc. High temperature chemical vapor deposition lid

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EP2241867A1 (de) 2010-10-20
DE202009005561U1 (de) 2009-07-02
EP2241867B1 (de) 2018-02-21

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