EP3930935B1 - Method for producing a cylindrical container, and apparatus for this purpose - Google Patents

Method for producing a cylindrical container, and apparatus for this purpose Download PDF

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Publication number
EP3930935B1
EP3930935B1 EP20707550.8A EP20707550A EP3930935B1 EP 3930935 B1 EP3930935 B1 EP 3930935B1 EP 20707550 A EP20707550 A EP 20707550A EP 3930935 B1 EP3930935 B1 EP 3930935B1
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EP
European Patent Office
Prior art keywords
metal strip
sheet
profiling
drive device
sheet metal
Prior art date
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Application number
EP20707550.8A
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German (de)
French (fr)
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EP3930935A1 (en
Inventor
Edgar Mayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lipp & Mayer Technologie GmbH
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Lipp & Mayer Technologie GmbH
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Publication of EP3930935A1 publication Critical patent/EP3930935A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12Making tubes or metal hoses with helically arranged seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12Making tubes or metal hoses with helically arranged seams
    • B21C37/121Making tubes or metal hoses with helically arranged seams with non-welded and non-soldered seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12Making tubes or metal hoses with helically arranged seams
    • B21C37/122Making tubes or metal hoses with helically arranged seams with welded or soldered seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12Making tubes or metal hoses with helically arranged seams
    • B21C37/126Supply, or operations combined with supply, of strip material

Definitions

  • the present invention relates to a method for producing a cylindrical container, in particular a silo, in which a sheet metal strip is pulled off a reel, bent into a spiral shape and profiled in the upper and/or lower edge region and then the edge regions of adjacent sheet metal strips arranged one above the other are connected to one another, the sheet metal strip is fed to a profiling device for forming the profile of the upper and/or lower edge, the sheet metal strip is fed to a drive device, the sheet metal strip is fed to a connecting device which connects the adjacent longitudinal edges of the fed sheet metal strips to one another to form a jacket surface of the container, at least in some areas circumferentially cylindrical mounting frames are used, on which the interconnected sheet metal strips are mounted in a spiral shape so that they can rotate and are moved in a rotational manner by means of the drive device after the connection has been made.
  • the present invention further relates to a device for carrying out the method with a reel on which the sheet metal strip is arranged so that it can be pulled off, a profiling device for profiling the upper and/or lower edge region of the sheet metal strip, a drive device for rotating the sheet metal strip in the cylindrical outer surface of the container, a connecting device for connecting adjacent fed longitudinal edges of the sheet metal strip to form the cylindrical outer surface of the container, an assembly frame which is cylindrical at least in some areas, on which the lower edge of the sheet metal strip being fed is mounted so that it can rotate.
  • a machine for producing a silo from a sheet metal strip wound on a supply roll is known, with a profiling station which has a path designed to match the curvature of the silo wall and which runs offset from the cylinder defined by the silo, and with a folding station arranged essentially on one side, in particular the outside of the wall of the silo to be produced, the profiling station and the folding station each having their own drive motor and being assigned to a frame.
  • This machine is characterized in that the frame can be set up on the floor and is ring-shaped and carries support rollers arranged on a helical line at a distance from its lower end to support the silo at its fold, that the profiling station can be set up on the floor and its path runs next to the helical line defined by the support rollers, and that the path defined by the folding station, which is also on the floor, coincides with the helical line defined by the support rollers.
  • Such a machine has been in use for a long time and has proven itself in the manufacture of silos. In this known machine, adjacent longitudinal edges of the sheet metal strips are connected to one another by folding.
  • devices for producing a cylindrical container in particular a silo, are known in which the connection of adjacent edge areas of the sheet metal strip is made by welding after a corresponding profiling of the sheet metal edge strip.
  • Such devices are, for example, in the EP1181115B1 , the EP 3 189 906 A1 , the EP 3189 908 A1 , the 2012 205 243 A1 or the GB 2 096 227 A described.
  • a container which is made from a single-layer, spirally bent sheet metal strip, wherein a first, spirally extending edge section of the sheet metal strip is bent out towards the outside of the container to form a spirally extending bending edge, wherein a second spirally extending edge section of the sheet metal strip overlaps a third section of the sheet metal strip on the inside of the container which is adjacent to the bending edge and extends from the bending edge in the direction of the second edge section, and the second edge section is connected to the section of the sheet metal strip on the inside of the container in a fluid-tight manner.
  • a profiling device with profiling stations and a drive is always used, which first carries out the profiling of the upper and lower edges of the supplied sheet metal strip and the curvature.
  • the pre-formed sheet metal strip is then fed to a drive station, which carries out further profiling if necessary and rotates the container to be produced from the supplied sheet metal strips arranged one above the other in a spiral shape.
  • a welding device is arranged, which connects the adjacent edge areas of the supplied sheet metal strip.
  • the profiling device In the known devices, the profiling device must be robustly designed with its own drive in order to be able to reliably implement the required forming and driving forces.
  • the profiling station therefore has a relatively large weight and volume, which must be transported and assembled when the assembly device is created to produce the silo.
  • the present invention is based on the technical problem or task of specifying a method for producing a cylindrical container and a device for this purpose, which enables the profiling device to be reduced in terms of its weight and volume and at the same time enables simplified assembly with a permanently reliable function.
  • An economical use of this method and this device should be able to be implemented reliably, in particular with regard to the production of silos with relatively thin walls, without having to forego the advantages of an economical manufacturing process.
  • an assembly-technically simple and economical use for containers with different diameters should be possible.
  • the device according to the invention is characterized by the features of independent claim 9. Advantageous embodiments and further developments of the device according to the invention are given by the features of claims 10 to 16.
  • the method according to the invention is therefore characterized in that a profiling device is used between the reel and the drive device, which does not perform any spiral bending of the supplied sheet metal strip and only performs at least partial profiling of the edge areas of the supplied sheet metal strip, a feeding device connected to the drive device is used, which is connected via a coupling device at the beginning of the Manufacturing process of the container is detachably connectable to the sheet metal strip that can be pulled off the reel and this is fed to the drive device via the profiling device and after the sheet metal strip has been gripped by the drive device, the connection between the feeding device and the sheet metal strip is released.
  • the method according to the invention enables the profiling station to be made lightweight and relatively small in terms of volume, since only the edge area is shaped within the profiling station and no separate drive is required.
  • the profiling station is only used for shaping and does not need to have its own drive.
  • the feed device is only used at the start of the manufacturing process by picking up the sheet metal strip that can be pulled off the reel and conveying it through the profiling device and feeding it to the drive device. As soon as the sheet metal strip has been fed to the drive device, the feed device is detached from the sheet metal strip and the further process of transporting the sheet metal strip, its additional shaping and curving and its connection of adjacent sheet metal edge areas of sheet metal strips running one above the other is carried out in a known manner.
  • a profiling device can therefore be used that has a significantly lower weight and volume than the known profiling devices. This is particularly advantageous when manufacturing containers, such as silos, from thin-walled stainless steel sheet, as on the one hand the profiling device does not have an additional drive and on the other hand reliable profiling with subsequent further transport by the drive device and, if necessary, additional profiling and subsequent connection of adjacent sheet edge areas of the supplied sheet metal strips by the connection device can be ensured in a permanently reliable manner. This means that containers or silos with a high level of strength and permanently reliable tightness with a wide variety of diameters and heights can be implemented without any problems.
  • a particularly advantageous embodiment of the method according to the invention is characterized in that the sheet metal strip profiled by the profiling device is fed to the drive device in a straight tangential manner. Since the sheet metal strip is not bent within the profiling device with regard to the production of the cylindrical silo, the straight tangential feeding of the at least partially profiled sheet metal strip is optimal, since any distortions in the sheet metal strip plane can be reliably avoided by a molded-in curvature before feeding to the drive device with subsequent connecting device.
  • a particularly advantageous embodiment of the method according to the invention is characterized in that the sheet metal strip is guided between the profiling device and the drive device, at least in some areas, in at least one guide unit, in particular linearly.
  • the use of a guide unit ensures the optimal feeding of the sheet metal strip profiled within the profiling device to the drive device.
  • a particularly simple and economical design variant which ensures a permanently reliable functioning in terms of assembly technology, is characterized by the fact that the sheet metal strip is fed by means of the feeding device/coupling device via a manually or motor-operated, detachably connectable tension member/thrust member.
  • a particularly advantageous design of the method according to the invention is characterized in that a guide frame is inserted between the profiling device and the drive device, which is connected to the profiling device and drive device.
  • the guide frame ensures a permanently reliable feed of the sheet metal strip to the drive device.
  • a particularly preferred embodiment of the method according to the invention is characterized in that additional profiling measures are effected by means of the drive device, which effect a helical bending of the sheet metal strip and/or further profiling of the edge region of the sheet metal strip.
  • a connecting device is provided after the drive device, which is designed, for example, as a welding or folding connecting device.
  • a particularly advantageous embodiment is characterized in that one or more profiling stations are used within the profiling device, which gradually implement the profiling of the edge area of the fed sheet metal strip.
  • An alternative advantageous embodiment is characterized in that the feeding device has a thrust drive unit instead of a tension member, which only has to be dimensioned in such a way that at the beginning of the production process it guides the beginning of the sheet metal strip through the profiling device and feeds it to the drive device.
  • This thrust drive unit can then be switched off.
  • the unit can be arranged in front of the profiling device.
  • the device according to the invention for carrying out the method described above is characterized in that a feeding device with a coupling device is provided which can be detachably connected to the end region of the sheet metal strip that can be pulled off the reel at the beginning of the production process, the profiling device is designed in such a way that it does not carry out a helical curvature of the sheet metal strip and carries out profiling of the edge region of the fed sheet metal strip, the feeding device is designed in such a way that it feeds the sheet metal strip to the drive device via the profiling device, in particular linearly and tangentially, the The coupling device is designed in such a way that it guides the sheet metal strip through the profiling device and feeds it to the drive device and can be detached from the sheet metal strip after feeding.
  • a particularly advantageous embodiment is characterized in that the feeding device has a frame which is connected to the drive device and profiling device.
  • the feeding device or the frame has at least one guide unit in which the sheet metal strip fed to the drive device is guided.
  • the feeding device or profiling device can have a motor unit which acts on the beginning of the sheet metal strip with a tensile force or thrust force via a coupling device, whereby the latter is moved from the profiling device/reel to the drive device and which thus carries out the displacement of the sheet metal strip at the beginning of the manufacturing process from the reel via the profiling device to the drive device.
  • a structurally particularly simple and advantageous embodiment, which is particularly easy to implement in terms of assembly, is characterized in that the feed device on the drive device has a manually or motor-driven device, in particular a wheel device, the rotary movement of which is converted into a translational movement of the coupling device and thus of the sheet metal strip.
  • the feeding device or coupling device has a tension member, in particular a chain, rope or other type of profile.
  • a particularly advantageous embodiment is characterized in that the feeding device has a gear.
  • a particularly advantageous design is characterized by the fact that the feed device is designed to be telescopic and lockable in its longitudinal direction, or the profiling device can be connected to the feed device in different positions.
  • the telescopic nature of the feed device or the frame device of the feed device or the different positioning of the profiling device on the frame device in the longitudinal direction means that it can be easily adapted to the respective diameter of the container/silo to be produced, without any economic losses occurring during the production of the container/silo, since the distance between the profiling device and the drive device can be easily adjusted.
  • the curvature is smaller and the profiling device has to be positioned further away from the drive device for reasons of space.
  • the method and the device according to the invention can be used particularly preferably in the manufacture of silos from thin stainless steel sheets.
  • powerful motors or drive units for the profiling or forming unit are no longer necessary.
  • the device is therefore easier to handle in terms of transport and assembly and is more economical overall.
  • the assembly work is significantly simplified.
  • the said type of production using the method according to the invention or the device according to the invention is an optimal economic solution.
  • FIG. 11 A known device for producing a container 10, in particular a silo, from a spirally bent sheet metal strip 20 is shown. Such a device is described, for example, in EP1181115B1 , the EP 3 189 906 A1 or the EP 3 189 908 A1 disclosed.
  • the sheet metal strip 20 is drawn off a reel 18 and first fed to a forming device 25.
  • This forming device 25 creates a bevel in the upper edge region of the fed sheet metal strip 20 via individual forming stations, so that as a result there is an outward-facing flange in the upper edge region of the sheet metal strip 20.
  • the forming device 25 causes the plane of the fed sheet metal strip 20 to be curved, essentially in accordance with the radius of curvature of the container 10 to be produced.
  • the forming device 25 also has its own drive unit to ensure the advancement of the sheet metal strip 20.
  • the profiled and curved sheet metal strip 20 is then fed to a drive device 40, to which an assembly frame 32 is connected, which is designed to be cylindrical when viewed from above and on which the lower edge region of the lower sheet metal strip 20 fed in each case is rotatably mounted.
  • a connecting device 50 which is designed as a welding connection device and welds the respective lower sheet metal edge of the existing, already assembled container construction to the upper sheet metal edge of the supplied sheet metal strip 20.
  • two further drive units 28 are provided at a distance in the circumferential direction.
  • the supplied sheet metal strip 20 with its curvature and edge profiling runs spirally upwards to form the outer surface of the container 10.
  • this forming device 25 Since the forming device 25 carries out both the curvature and the complete profiling of the supplied sheet metal strip 20 and has its own drive, this forming device 25 is relatively voluminous and has a high weight.
  • the diameter of the container 10 is in Fig. 11 indicated with the reference symbol D.
  • such devices can be used to construct silos with a diameter of 10 metres up to 50 metres or larger.
  • the Fig.1 and 2 show a device for producing a container 10 from a spirally bent sheet metal strip, which operates on the same principle as the known device according to Fig. 11 .
  • the profiling device 30 is connected to a feeding device 60.
  • the profiling device 30 is significantly smaller in volume and weight than the known forming device because it does not have its own drive, which is beneficial for the transport and assembly of the profiling device 30 with feeding device 60.
  • An embodiment of the feed device 60 is shown in the Figures 3 to 6 shown.
  • the feed device 60 has a guide frame 48, which in the embodiment shown has frame profiles 49 arranged in cross-section at the corners of an imaginary square.
  • the profiling device 30 with two profiling stations 30.1 in the embodiment is connected to the guide frame 48.
  • the guide frame 48 is mounted on the base via guide frame supports 34. Both the frame profiles 49 and the guide frame supports 34 are variably adjustable in their respective longitudinal direction, so that the height of the guide frame 48 can be adjusted via the guide frame supports 34 and the Positioning of the profiling device 30 can be adapted to the current assembly situation.
  • the feed device 60 also has a tension member 46, which in the exemplary embodiment is designed as a link chain.
  • This tension member 46 is detachably connected to the front edge area of the sheet metal strip 20.
  • the tension member 46 is operatively connected to an actuating unit, which in the exemplary embodiment shown is designed as a handwheel device 22.
  • a tensile force is exerted on the tension member 46 due to the existing rotary form fit, which is transferred to the connected sheet metal strip 20 and thereby causes a movement of the sheet metal strip 20 in the longitudinal direction L.
  • the actuating unit or the handwheel device 22 is present in the area of the drive device 40 such that when the actuating unit (handwheel device 22) is actuated, the sheet metal strip 20 is pulled so far into the drive device 40 that the sheet metal strip 20 is grasped by the latter and can be transported further.
  • the feed device 60 is used at the start of the manufacturing process for the container 10. In practice, this works as follows.
  • the sheet metal strip 20 is drawn off from the reel 18, which is rotatably mounted, and fed to the profiling device 30. As soon as the sheet metal strip 20 is at the profiling device 30, the tension member 46 is connected to the front side of the sheet metal strip 20. The sheet metal strip 20 is then pulled further in the longitudinal direction L by actuating the actuating unit (handwheel device 22) and pulled through the profiling device 30 with its profiling stations 30.1, whereby the profiling of the upper sheet metal edge of the sheet metal strip 20 in the embodiment is carried out step by step. The actuating unit (handwheel device 22) is activated until the sheet metal strip 20, which is at least partially profiled in its upper edge area, has been formed. Sheet metal strip 20 is fed to the drive device 40. As soon as this feeding has taken place, the tension member 46 is released and the further transport of the sheet metal strip 20 for producing the outer surface of the container 10 is taken over by the drive device 40.
  • the profiling device 30 is designed as a lightweight structural unit, since it does not cause any curvature of the sheet metal strip 20 and there is no drive unit.
  • the sheet metal strip 20 is thus fed to the drive device 40 in a linear, straight line and the curvature of the sheet metal strip 20 in relation to the radius of curvature of the container 10 to be produced and, if necessary, further profiling is carried out within the drive device 40.
  • the connecting device 50 is designed as a welded connecting device.
  • the connecting device 50 can also be designed as a folded connecting device.
  • guide units 44 are provided on the guide frame 48, in which the guidance of the lower edge region of the fed sheet metal strip 20 is ensured during the linear longitudinal displacement in the direction L by the feed device 60. This further increases the stability of the feeding process.
  • the tension member 46 can also be designed as a cable unit, profile unit or the like.
  • the handwheel device 22 is operated manually. It is also possible to activate the tension member 46 by an additional motor-driven unit in order to initiate the longitudinal displacement L of the sheet metal strip 20 at the beginning of the assembly process until it has reached the drive device 40. The drive unit is then switched off and the tension member 46 is decoupled from the sheet metal strip 20.
  • the wheel device 22 (manually or motor-operated) with tension member 46 is dispensed with and instead a light drive unit is arranged on the profiling device 30, which ensures the propulsion of the sheet metal strip 20 via the profiling device 30 to the drive device 40. As soon as the sheet metal strip 20 is grasped by the drive device 40, this light unit is switched off and decoupled from the propulsion of the sheet metal strip 20.
  • a container 10 which, using the device according to Fig.1 and consists of four layers of interconnected sheet metal strips arranged in a spiral shape one above the other.
  • the upper and lower sheet metal strip layers are cut freely in a horizontal section, so that on the one hand reliable storage in the lower area and on the other hand a problem-free roof construction in the upper area is guaranteed.
  • FIG. 7 to 10 show in detail the device according to Fig.1 or 2 with feeding device 60, profiling device 30, drive device 40 and connecting device 50 with the sheet metal strip 20 fed by the feeding device 60 up to just before the drive device 40.
  • the actuating unit (handwheel device 22) is arranged in the middle of the drive device 40 with its four drive units 41.1, 41.2, 41.3, 41.4.
  • the sheet metal strip 20 is fed to the drive device 40 via the feed device 60, whereby the upper edge area of the sheet metal strip 20 is already partially profiled by the profiling device 30, such that an outwardly facing flange is formed.
  • this flange is deformed by additional profiling units until it reaches its final shape, the sheet metal strip 20 is given a curvature corresponding to the curvature of the container 10 to be produced and is then fed to the connecting device 50, which connects the formed upper side of the supplied sheet metal strip 20 with the lower side of the Figures 7 to 10 not shown lower edge area of the already existing sheet metal strip 20 by welding.
  • the device according to the invention for producing a container 10 from a spirally bent sheet metal strip 20 differs from the known solution in that the known forming device is replaced by a simple and lightweight profiling device 30, wherein the sheet metal strip 20 is fed at the beginning of the manufacturing process by the feed device 60 via the profiling device 30 to the drive device 40, wherein at the same time an at least partial profiling of the edge region of the sheet metal strip is carried out without having to use a forming device that has a high volume and a high weight.
  • This offers advantages in terms of economical production, especially for thin-walled containers.
  • the profiling device 30 does not have to bend the sheet metal strip, i.e. the sheet metal strip 20 is fed linearly to the drive device 40, economical assembly can be ensured. In addition, adaptability to the production of containers 10 with different diameters is easily possible.
  • the device according to the invention is characterized by a small transport volume, low weight, high variability with regard to the assembly process and economical use.

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Description

TECHNISCHES GEBIETTECHNICAL AREA

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines zylindrischen Behälters, insbesondere Silos, bei dem ein Blechband von einer Haspel abgezogen wird, das wendelförmig gebogen und im oberen und/oder unteren Randbereich profiliert und anschließend die Randbereiche benachbarter übereinander angeordneter Blechbänder miteinander verbunden werden, das Blechband einer Profiliereinrichtung zur Profilbildung des oberen und/oder unteren Randes zugeführt wird, das Blechband einer Antriebseinrichtung zugeführt wird, das Blechband einer Verbindungseinrichtung zugeführt wird, die benachbarten Längsränder der zugeführten Blechbänder untereinander verbindet zur Bildung einer Mantelfläche des Behälters, zumindest bereichsweise umfangsmäßig zylindrisch verlaufende Montagerahmen eingesetzt werden, auf denen die miteinander verbundenen Blechbänder drehverschiebbar wendelförmig gelagert sind und mittels der Antriebseinrichtung nach dem Herstellen der Verbindung rotatorisch bewegt werden.The present invention relates to a method for producing a cylindrical container, in particular a silo, in which a sheet metal strip is pulled off a reel, bent into a spiral shape and profiled in the upper and/or lower edge region and then the edge regions of adjacent sheet metal strips arranged one above the other are connected to one another, the sheet metal strip is fed to a profiling device for forming the profile of the upper and/or lower edge, the sheet metal strip is fed to a drive device, the sheet metal strip is fed to a connecting device which connects the adjacent longitudinal edges of the fed sheet metal strips to one another to form a jacket surface of the container, at least in some areas circumferentially cylindrical mounting frames are used, on which the interconnected sheet metal strips are mounted in a spiral shape so that they can rotate and are moved in a rotational manner by means of the drive device after the connection has been made.

Die vorliegende Erfindung betrifft weiterhin eine Vorrichtung zur Durchführung des Verfahrens mit einer Haspel, auf der das Blechband abziehbar angeordnet ist, einer Profiliereinrichtung zur Profilierung des oberen und/oder unteren Randbereiches des Blechbandes, einer Antriebseinrichtung zum rotatorischen Bewegen des Blechbandes in der zylindrischen Mantelfläche des Behälters, einer Verbindungseinrichtung zum Verbinden benachbarter zugeführter Längsränder des Blechbandes zur Bildung der zylindrischen Mantelfläche des Behälters, einen zumindest bereichsweise zylindrisch verlaufenden Montagerahmen, dem der jeweils untere Blechrand des zugeführten Blechbandes drehverschieblich gelagert ist.The present invention further relates to a device for carrying out the method with a reel on which the sheet metal strip is arranged so that it can be pulled off, a profiling device for profiling the upper and/or lower edge region of the sheet metal strip, a drive device for rotating the sheet metal strip in the cylindrical outer surface of the container, a connecting device for connecting adjacent fed longitudinal edges of the sheet metal strip to form the cylindrical outer surface of the container, an assembly frame which is cylindrical at least in some areas, on which the lower edge of the sheet metal strip being fed is mounted so that it can rotate.

STAND DER TECHNIKSTATE OF THE ART

In der DE 2 250 239 A ist eine Maschine zum Herstellen eines Silos aus einem auf einer Vorratsrolle aufgewickelten Blechbandes mit einer Profilierstation, die eine der Wandbiegung des Silos entsprechend ausgebildete und versetzt zu dem durch das Silo bestimmten Zylinder verlaufende Bahn aufweist, und mit einer im Wesentlichen auf einer Seite, insbesondere der Außenseite der Wand des herzustellenden Silos angeordneten Falzstation, wobei die Profilierstation und die Falzstation jeweils einen eigenen Antriebsmotor aufweisen und einem Rahmen zugeordnet sind, bekannt. Diese Maschine zeichnet sich dadurch aus, dass der Rahmen auf dem Boden aufstellbar und ringförmig ausgebildet ist sowie im Abstand von seinem unteren Ende auf einer Schraubenlinie angeordnete Stützrollen zur Unterstützung des Silos an dessen Falz trägt, dass die Profilierstation auf dem Boden aufstellbar ist und ihre Bahn neben der durch Stützrollen bestimmten Schraubenlinie verläuft und dass die durch die ebenfalls auf dem Boden stehende Falzstation bestimmte Bahn mit der durch die Stützrollen bestimmten Schraubenlinie übereinstimmt. Eine derartige Maschine ist seit langem im Einsatz und hat sich bei der Herstellung von Silos bewährt. Bei dieser bekannten Maschine werden benachbarte Längsränder des Blechbänder durch Falzung miteinander verbunden.In the DE 2 250 239 A A machine for producing a silo from a sheet metal strip wound on a supply roll is known, with a profiling station which has a path designed to match the curvature of the silo wall and which runs offset from the cylinder defined by the silo, and with a folding station arranged essentially on one side, in particular the outside of the wall of the silo to be produced, the profiling station and the folding station each having their own drive motor and being assigned to a frame. This machine is characterized in that the frame can be set up on the floor and is ring-shaped and carries support rollers arranged on a helical line at a distance from its lower end to support the silo at its fold, that the profiling station can be set up on the floor and its path runs next to the helical line defined by the support rollers, and that the path defined by the folding station, which is also on the floor, coincides with the helical line defined by the support rollers. Such a machine has been in use for a long time and has proven itself in the manufacture of silos. In this known machine, adjacent longitudinal edges of the sheet metal strips are connected to one another by folding.

Des Weiteren sind Vorrichtungen zum Herstellen eines zylindrischen Behälters, insbesondere eines Silos, bekannt bei denen die Verbindung benachbarter Randbereiche des Blechbandes nach einer entsprechenden Profilierung des Blechrandbandes durch Schweißung hergestellt wird. Derartige Vorrichtungen sind beispielsweise in der EP 1181115 B1 , der EP 3 189 906 A1 , der EP 3189 908 A1 , der AU 2012 205 243 A1 oder der GB 2 096 227 A beschrieben.Furthermore, devices for producing a cylindrical container, in particular a silo, are known in which the connection of adjacent edge areas of the sheet metal strip is made by welding after a corresponding profiling of the sheet metal edge strip. Such devices are, for example, in the EP1181115B1 , the EP 3 189 906 A1 , the EP 3189 908 A1 , the 2012 205 243 A1 or the GB 2 096 227 A described.

Auch in der WO 2014/048515 A1 ist ein Behälter beschrieben, der aus einem einlagigen, wendelförmig gebogenen Blechband hergestellt ist, wobei ein erster, wendelförmig verlaufender Randabschnitt des Blechbandes unter Ausbildung einer wendelförmig verlaufenden Ausbiegekante zur Außenseite des Behälters hin ausgebogen ist, wobei ein zweiter wendelförmig verlaufender Randabschnitt des Blechbandes einen an die Ausbiegekante angrenzenden und sich von der Ausbiegekante in Richtung auf den zweiten Randabschnitt hin erstreckenden dritten Abschnitt des Blechbandes auf der Innenseite des Behälters überlappt, und der zweite Randabschnitt mit dem Abschnitt des Blechbandes auf der Innenseite des Behälters fluiddicht verbunden ist.Also in the WO 2014/048515 A1 a container is described which is made from a single-layer, spirally bent sheet metal strip, wherein a first, spirally extending edge section of the sheet metal strip is bent out towards the outside of the container to form a spirally extending bending edge, wherein a second spirally extending edge section of the sheet metal strip overlaps a third section of the sheet metal strip on the inside of the container which is adjacent to the bending edge and extends from the bending edge in the direction of the second edge section, and the second edge section is connected to the section of the sheet metal strip on the inside of the container in a fluid-tight manner.

Bei den bekannten Vorrichtungen zum Herstellen eines zylindrischen Behälters, insbesondere Silos, wird grundsätzlich immer eine Profiliereinrichtung mit Profilierstationen und einem Antrieb eingesetzt, die zunächst die Profilierung des oberen und unteren Randes des zugeführten Blechbandes und des Krümmung vornimmt. Daran anschließend wird das vorgeformte Blechband einer Antriebsstation zugeführt, die gegebenenfalls weitere Profilierungen vornimmt und die Drehung des herzustellenden Behälters aus den zugeführten wendelförmig übereinander angeordneten miteinander verbundenen Blechbändern vornimmt. Nach der Antriebsstation ist anschließend beispielsweise eine Schweißvorrichtung angeordnet, die die Verbindung der benachbarten Randbereiche des zugeführten Blechbandes vornimmt.In the known devices for producing a cylindrical container, in particular silos, a profiling device with profiling stations and a drive is always used, which first carries out the profiling of the upper and lower edges of the supplied sheet metal strip and the curvature. The pre-formed sheet metal strip is then fed to a drive station, which carries out further profiling if necessary and rotates the container to be produced from the supplied sheet metal strips arranged one above the other in a spiral shape. After the drive station, for example, a welding device is arranged, which connects the adjacent edge areas of the supplied sheet metal strip.

Bei den bekannten Vorrichtungen muss die Profiliereinrichtung mit eigenem Antrieb robust ausgebildet sein, um die erforderlichen Form- und Antriebskräfte zuverlässig umsetzen zu können. Daher weist die Profilierstation ein relativ großes Gewicht und Volumen auf, dass bei der Erstellung der Montagevorrichtung zur Herstellung des Silos transportiert und montiert werden muss.In the known devices, the profiling device must be robustly designed with its own drive in order to be able to reliably implement the required forming and driving forces. The profiling station therefore has a relatively large weight and volume, which must be transported and assembled when the assembly device is created to produce the silo.

DARSTELLUNG DER ERFINDUNGDESCRIPTION OF THE INVENTION

Ausgehend von dem genannten Stand der Technik liegt der vorliegenden Erfindung das technische Problem beziehungsweise die Aufgabe zugrunde, ein Verfahren zur Herstellung eines zylindrischen Behälters und eine Vorrichtung hierzu anzugeben, das beziehungsweise die ermöglicht, dass die Profiliereinrichtung bezüglich Ihres Gewichts und Volumens reduziert werden kann und gleichzeitig eine vereinfachte Montage mit dauerhaft zuverlässig gewährbarer Funktion ermöglicht. Ein wirtschaftlicher Einsatz dieses Verfahrens und dieser Vorrichtung soll insbesondere bezüglich der Herstellung von Silos mit relativ dünner Wandstärke zuverlässig umgesetzt werden können, ohne dass auf die Vorteile eines wirtschaftlichen Herstellverfahrens verzichtet werden muss. Darüber hinaus soll ein montagetechnisch einfacher und wirtschaftlicher Einsatz bei Behältern mit unterschiedlichem Durchmesser ermöglicht werden.Based on the above-mentioned prior art, the present invention is based on the technical problem or task of specifying a method for producing a cylindrical container and a device for this purpose, which enables the profiling device to be reduced in terms of its weight and volume and at the same time enables simplified assembly with a permanently reliable function. An economical use of this method and this device should be able to be implemented reliably, in particular with regard to the production of silos with relatively thin walls, without having to forego the advantages of an economical manufacturing process. In addition, an assembly-technically simple and economical use for containers with different diameters should be possible.

Das erfindungsgemäße Verfahren ist durch die Merkmale des unabhängigen Anspruchs 1 gegeben. Vorteilhafte Ausgestaltungen und Weiterbildungen des erfindungsgemäßen Verfahrens sind durch die Merkmale der von dem unabhängigen Anspruch 1 direkt oder indirekt abhängigen Ansprüche 2 bis 8 gegeben.The method according to the invention is given by the features of independent claim 1. Advantageous embodiments and further developments of the method according to the invention are given by the features of claims 2 to 8 which are directly or indirectly dependent on independent claim 1.

Die erfindungsgemäße Vorrichtung zeichnet sich durch die Merkmale des unabhängigen Anspruchs 9 aus. Vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Vorrichtung sind durch die Merkmale der Ansprüche 10 bis 16 gegeben.The device according to the invention is characterized by the features of independent claim 9. Advantageous embodiments and further developments of the device according to the invention are given by the features of claims 10 to 16.

Das erfindungsgemäße Verfahren zeichnet sich demgemäß dadurch aus, dass zwischen Haspel und Antriebseinrichtung eine Profiliereinrichtung eingesetzt wird, die keine wendelförmige Biegung des zugeführten Blechbandes vornimmt und nur zumindest teilweise die Profilierung der Randbereiche des zugeführten Blechbandes vornimmt, eine mit der Antriebseinrichtung verbundene Zuführeinrichtung eingesetzt wird, die über eine Koppeleinrichtung bei Beginn des Herstellungsvorgangs des Behälters mit dem von der Haspel abziehbaren Blechband lösbar verbindbar ist und dieses über die Profiliereinrichtung der Antriebseinrichtung zuführt und nach dem Erfassen des Blechbandes durch die Antriebseinrichtung die Verbindung von Zuführeinrichtung und Blechband gelöst wird.The method according to the invention is therefore characterized in that a profiling device is used between the reel and the drive device, which does not perform any spiral bending of the supplied sheet metal strip and only performs at least partial profiling of the edge areas of the supplied sheet metal strip, a feeding device connected to the drive device is used, which is connected via a coupling device at the beginning of the Manufacturing process of the container is detachably connectable to the sheet metal strip that can be pulled off the reel and this is fed to the drive device via the profiling device and after the sheet metal strip has been gripped by the drive device, the connection between the feeding device and the sheet metal strip is released.

Das erfindungsgemäße Verfahren ermöglicht, da innerhalb der Profilierstation lediglich eine Formung des Randbereichs vorgenommen wird und kein eigener Antrieb erforderlich ist, dass diese leicht und volumenmäßig relativ klein ausgebildet werden kann. Die Profilierstation dient nur zur Formung und muss keinen eigenen Antrieb besitzen. Die Zuführeinrichtung wird lediglich beim Start des Herstellvorgangs eingesetzt, indem diese das von der Haspel abziehbare Blechband erfasst und durch die Profiliereinrichtung fördert und der Antriebseinrichtung zuführt. Sobald das Blechband der Antriebseinrichtung zugeführt ist, wird die Zuführeinrichtung von dem Blechband gelöst und der weitere Verfahrensvorgang des Transports des Blechbandes, dessen zusätzliche Formung und Krümmung und dessen Verbindung benachbarter Blechrandbereiche übereinander verlaufender Blechbänder in bekannter Art und Weise durchgeführt wird. Somit kann eine Profiliereinrichtung eingesetzt werden, die im Vergleich zu den bekannten Profiliereinrichtungen ein deutlich geringeres Gewicht und Volumen aufweisen. Dies ist insbesondere bei der Herstellung von Behältern, beispielsweise Silos, aus dünnwandigem Edelstahlblech von besonderem Vorteil, da einerseits die Profiliereinrichtung keinen zusätzlichen Antrieb aufweist und andererseits eine zuverlässige Profilierung mit anschließendem Weitertransport durch die Antriebseinrichtung und gegebenenfalls zusätzlicher Profilierung und danach anschließender Verbindung benachbarter Blechrandbereiche der zugeführten Blechbänder durch die Verbindungseinrichtung in dauerhaft zuverlässiger Art und Weise gewährleistet werden kann. Dadurch können Behälter beziehungsweise Silos mit einer hohen Festigkeit und einer dauerhaft zuverlässigen Dichtheit mit unterschiedlichstem Durchmesser und in unterschiedlichster Höhe problemlos umgesetzt werden.The method according to the invention enables the profiling station to be made lightweight and relatively small in terms of volume, since only the edge area is shaped within the profiling station and no separate drive is required. The profiling station is only used for shaping and does not need to have its own drive. The feed device is only used at the start of the manufacturing process by picking up the sheet metal strip that can be pulled off the reel and conveying it through the profiling device and feeding it to the drive device. As soon as the sheet metal strip has been fed to the drive device, the feed device is detached from the sheet metal strip and the further process of transporting the sheet metal strip, its additional shaping and curving and its connection of adjacent sheet metal edge areas of sheet metal strips running one above the other is carried out in a known manner. A profiling device can therefore be used that has a significantly lower weight and volume than the known profiling devices. This is particularly advantageous when manufacturing containers, such as silos, from thin-walled stainless steel sheet, as on the one hand the profiling device does not have an additional drive and on the other hand reliable profiling with subsequent further transport by the drive device and, if necessary, additional profiling and subsequent connection of adjacent sheet edge areas of the supplied sheet metal strips by the connection device can be ensured in a permanently reliable manner. This means that containers or silos with a high level of strength and permanently reliable tightness with a wide variety of diameters and heights can be implemented without any problems.

Eine besonders vorteilhafte Ausgestaltung des erfindungsgemäßen Verfahrens zeichnet sich dadurch aus, dass das durch die Profiliereinrichtung profilierte Blechband der Antriebseinrichtung geradlinig tangential zugeführt wird. Dadurch dass innerhalb der Profiliereinrichtung keine Krümmung des Blechbandes bezüglich der Herstellung des zylindrischen Silos erfolgt, ist die geradlinig tangentiale Zuführung des zumindest teilweise profilierten Blechbandes optimal, da eventuelle Verwerfungen der Blechbandebene durch eine eingeformte Krümmung vor der Zuführung zur Antriebseinrichtung mit anschließender Verbindungseinrichtung zuverlässig vermieden werden können.A particularly advantageous embodiment of the method according to the invention is characterized in that the sheet metal strip profiled by the profiling device is fed to the drive device in a straight tangential manner. Since the sheet metal strip is not bent within the profiling device with regard to the production of the cylindrical silo, the straight tangential feeding of the at least partially profiled sheet metal strip is optimal, since any distortions in the sheet metal strip plane can be reliably avoided by a molded-in curvature before feeding to the drive device with subsequent connecting device.

Eine besonders vorteilhafte Ausgestaltung des erfindungsgemäßen Verfahrens zeichnet sich dadurch aus, dass das Blechband zwischen Profiliereinrichtung und Antriebseinrichtung zumindest bereichsweise in zumindest einer Führungseinheit, insbesondere linear, geführt wird. Der Einsatz einer Führungseinheit gewährleistet die optimale Zuführung des innerhalb der Profiliereinrichtung profilierten Blechbandes zu der Antriebseinrichtung.A particularly advantageous embodiment of the method according to the invention is characterized in that the sheet metal strip is guided between the profiling device and the drive device, at least in some areas, in at least one guide unit, in particular linearly. The use of a guide unit ensures the optimal feeding of the sheet metal strip profiled within the profiling device to the drive device.

Eine konstruktiv besonders einfache und wirtschaftliche Ausführungsvariante, die montagetechnisch eine dauerhaft zuverlässige Funktionsweise gewährleistet, zeichnet sich dadurch aus, dass das Blechband mittels der Zuführeinrichtung/Koppeleinrichtung über ein manuell oder motorisch betreibbares lösbar anschließbares Zugglied/Schubglied zugeführt wird.A particularly simple and economical design variant, which ensures a permanently reliable functioning in terms of assembly technology, is characterized by the fact that the sheet metal strip is fed by means of the feeding device/coupling device via a manually or motor-operated, detachably connectable tension member/thrust member.

Eine konstruktiv besonders vorteilhafte Ausgestaltung des erfindungsgemäßen Verfahrens zeichnet sich dadurch aus, dass zwischen der Profiliereinrichtung und der Antriebseinrichtung ein Führungsrahmen eingesetzt wird, der an die Profiliereinrichtung und Antriebseinrichtung angeschlossen ist. Der Führungsrahmen gewährleistet eine dauerhaft zuverlässige Zuführung des Blechbandes zu der Antriebseinrichtung.A particularly advantageous design of the method according to the invention is characterized in that a guide frame is inserted between the profiling device and the drive device, which is connected to the profiling device and drive device. The guide frame ensures a permanently reliable feed of the sheet metal strip to the drive device.

Eine besonders bevorzugte Ausgestaltung des erfindungsgemäßen Verfahrens zeichnet sich dadurch aus, dass mittels der Antriebseinrichtung zusätzliche Profilierungsmaßnahmen bewirkt werden, die eine wendelförmige Biegung des Blechbandes und/oder weitere Profilierungen des Randbereiches des Blechbandes bewirken.A particularly preferred embodiment of the method according to the invention is characterized in that additional profiling measures are effected by means of the drive device, which effect a helical bending of the sheet metal strip and/or further profiling of the edge region of the sheet metal strip.

Nachdem die entsprechende Profilierung der Randbereiche des Blechbandes hergestellt ist, ist erfindungsgemäß verfahrensmäßig nach der Antriebseinrichtung eine Verbindungseinrichtung vorhanden, die beispielsweise als Schweiß- oder Falzverbindungseinrichtung ausgebildet ist.After the corresponding profiling of the edge regions of the sheet metal strip has been produced, according to the invention a connecting device is provided after the drive device, which is designed, for example, as a welding or folding connecting device.

Eine besonders vorteilhafte Ausgestaltung zeichnet sich dadurch aus, dass innerhalb der Profiliereinrichtung eine oder mehrere Profilierstation/en eingesetzt werden, die die Profilierung des Randbereiches des zugeführten Blechbandes schrittweise umsetzen.A particularly advantageous embodiment is characterized in that one or more profiling stations are used within the profiling device, which gradually implement the profiling of the edge area of the fed sheet metal strip.

Eine alternative vorteilhafte Ausgestaltung zeichnet sich dadurch aus, dass die Zuführeinrichtung anstelle eines Zuggliedes ein Schubantriebsaggregat aufweist, das lediglich so dimensioniert sein muss, dass sie zu Beginn des Herstellvorgangs den Anfang des Blechbandes durch die Profiliereinrichtung führt und der Antriebseinrichtung zuführt. Danach kann dieses Schubantriebsaggregat abgeschaltet werden. Das Aggregat kann hierbei vor der Profiliereinrichtung angeordnet sein.An alternative advantageous embodiment is characterized in that the feeding device has a thrust drive unit instead of a tension member, which only has to be dimensioned in such a way that at the beginning of the production process it guides the beginning of the sheet metal strip through the profiling device and feeds it to the drive device. This thrust drive unit can then be switched off. The unit can be arranged in front of the profiling device.

Die erfindungsgemäße Vorrichtung zur Durchführung des oben beschriebenen Verfahrens zeichnet sich dadurch aus, dass eine Zuführeinrichtung mit einer Koppeleinrichtung vorhanden ist, die zu Beginn des Herstellvorgangs mit dem Endbereich des von der Haspel abziehbaren Blechbandes lösbar verbindbar ist, die Profiliereinrichtung so ausgebildet ist, dass sie keine wendelförmige Krümmung des Blechbandes durchführt und Profilierungen des Randbereiches des zugeführten Blechbandes vornimmt, die Zuführeinrichtung so ausgebildet ist, dass sie das Blechband über die Profiliereinrichtung der Antriebseinrichtung, insbesondere linear und tangential, zuführt, die Koppeleinrichtung so ausgebildet ist, dass sie das Blechband durch die Profiliereinrichtung führt und der Antriebseinrichtung zuführt und nach Zuführung vom Blechband lösbar ist.The device according to the invention for carrying out the method described above is characterized in that a feeding device with a coupling device is provided which can be detachably connected to the end region of the sheet metal strip that can be pulled off the reel at the beginning of the production process, the profiling device is designed in such a way that it does not carry out a helical curvature of the sheet metal strip and carries out profiling of the edge region of the fed sheet metal strip, the feeding device is designed in such a way that it feeds the sheet metal strip to the drive device via the profiling device, in particular linearly and tangentially, the The coupling device is designed in such a way that it guides the sheet metal strip through the profiling device and feeds it to the drive device and can be detached from the sheet metal strip after feeding.

Eine besonders vorteilhafte Ausgestaltung zeichnet sich dadurch aus, dass die Zuführeinrichtung einen Rahmen aufweist, der an die Antriebseinrichtung und Profiliereinrichtung angeschlossen ist.A particularly advantageous embodiment is characterized in that the feeding device has a frame which is connected to the drive device and profiling device.

Eine vorteilhafte Weiterbildung, die eventuell unerwünschten Verformungen bei der Profilierung des Blechbandes entgegenwirkt, zeichnet sich dadurch aus, dass die Zuführeinrichtung beziehungsweise der Rahmen zumindest eine Führungseinheit aufweist, in der das der Antriebseinrichtung zugeführte Blechband geführt wird.An advantageous further development, which counteracts any undesirable deformations during the profiling of the sheet metal strip, is characterized in that the feeding device or the frame has at least one guide unit in which the sheet metal strip fed to the drive device is guided.

Die Zuführeinrichtung oder Profiliereinrichtung kann in einer vorteilhaften Weiterbildung ein motorisches Aggregat aufweisen, das über eine Koppeleinrichtung auf den Anfang des Blechbandes mit einer Zugkraft oder Schubkraft einwirkt, wodurch dieses von der Profiliereinrichtung/Haspel bis zur Antriebseinrichtung bewegt wird und das somit die Verschiebung des Blechbandes zu Beginn des Herstellvorgangs von der Haspel über die Profiliereinrichtung bis zur Antriebseinrichtung durchführt.In an advantageous further development, the feeding device or profiling device can have a motor unit which acts on the beginning of the sheet metal strip with a tensile force or thrust force via a coupling device, whereby the latter is moved from the profiling device/reel to the drive device and which thus carries out the displacement of the sheet metal strip at the beginning of the manufacturing process from the reel via the profiling device to the drive device.

Eine konstruktiv besonders einfache und vorteilhafte Ausgestaltung, die montagetechnisch besonders einfach umzusetzen ist, zeichnet sich dadurch aus, dass die Zuführeinrichtung an der Antriebseinrichtung eine manuell oder motorisch antreibbare Einrichtung, insbesondere Radeinrichtung, aufweist, deren Drehbewegung in eine Translationsbewegung der Koppeleinrichtung und damit des Blechbandes umgesetzt wird.A structurally particularly simple and advantageous embodiment, which is particularly easy to implement in terms of assembly, is characterized in that the feed device on the drive device has a manually or motor-driven device, in particular a wheel device, the rotary movement of which is converted into a translational movement of the coupling device and thus of the sheet metal strip.

Die Zuführeinrichtung beziehungsweise Koppeleinrichtung weist in einer konstruktiv besonders vorteilhaften Ausgestaltung ein Zugglied, insbesondere eine Kette, Seil oder ein anders artiges Profil, auf.In a structurally particularly advantageous embodiment, the feeding device or coupling device has a tension member, in particular a chain, rope or other type of profile.

Um die beim Startvorgang, das heißt bei der Bewegung des Blechbandes von der Haspel über die Profiliereinrichtung bis zur Antriebseinrichtung auftretenden erforderlichen Kräfte für die Durchführung der Bewegung zu verringern, zeichnet sich eine besonders vorteilhafte Ausgestaltung dadurch aus, dass die Zuführeinrichtung ein Getriebe aufweist.In order to reduce the forces required to carry out the movement during the start-up process, i.e. when the sheet metal strip moves from the reel via the profiling device to the drive device, a particularly advantageous embodiment is characterized in that the feeding device has a gear.

Um eine Anpassung der Vorrichtung auf unterschiedlichste Durchmesser des zu erstellenden Behälters problemlos vornehmen zu können, insbesondere hinsichtlich der Positionierung der Profiliereinrichtung und der Haspel beim jeweiligen Montagevorgang, zeichnet sich eine besonders vorteilhafte Ausgestaltung dadurch aus, dass die Zuführeinrichtung in ihrer Längsrichtung teleskopierbar, arretierbar ausgebildet ist beziehungsweise die Profiliereinrichtung in unterschiedlichen Positionen an der Zuführeinrichtung anschließbar ist. Durch die Teleskopierbarkeit der Zuführeinrichtung beziehungsweise der Rahmeneinrichtung der Zuführeinrichtung beziehungsweise durch die unterschiedliche Positionierung der Profiliereinrichtung an der Rahmeneinrichtung in Längsrichtung ist eine Anpassung an den jeweiligen Durchmesser des zu erstellenden Behälters/Silos problemlos möglich, ohne dass wirtschaftliche Einbußen bei der Herstellung des Behälters/Silos auftreten, da der Abstand zwischen Profiliereinrichtung und Antriebseinrichtung problemlos angepasst werden kann. Bei großen Behältern ist die Krümmung kleiner und die Profiliereinrichtung muss aus Platzgründen weiter weg von der Antriebseinrichtung angeordnet werden.In order to be able to easily adapt the device to a wide variety of diameters of the container to be produced, particularly with regard to the positioning of the profiling device and the reel during the respective assembly process, a particularly advantageous design is characterized by the fact that the feed device is designed to be telescopic and lockable in its longitudinal direction, or the profiling device can be connected to the feed device in different positions. The telescopic nature of the feed device or the frame device of the feed device or the different positioning of the profiling device on the frame device in the longitudinal direction means that it can be easily adapted to the respective diameter of the container/silo to be produced, without any economic losses occurring during the production of the container/silo, since the distance between the profiling device and the drive device can be easily adjusted. With large containers, the curvature is smaller and the profiling device has to be positioned further away from the drive device for reasons of space.

Das erfindungsgemäße Verfahren und die erfindungsgemäße Vorrichtung können besonders bevorzugt bei der Herstellung von Silos aus dünnen Edelstahlblechen eingesetzt werden. Mit dem Einsatz der erfindungsgemäßen Zuführeinrichtung sind keine starken Motoren beziehungsweise Antriebsaggregate für die Profilier- oder Formeinheit mehr nötig. Die Vorrichtung wird dadurch handlicher bezüglich des Transports und deren Montage und wirtschaftlich insgesamt günstiger. Die Montagearbeiten vereinfachen sich deutlich. Für Trinkwassertanks, beispielsweise aus dünnen Edelstahlblech, ist die genannte Art der Herstellung unter Einsatz des erfindungsgemäßen Verfahrens beziehungsweise der erfindungsgemäßen Vorrichtung eine optimale wirtschaftliche Lösung.The method and the device according to the invention can be used particularly preferably in the manufacture of silos from thin stainless steel sheets. With the use of the feeding device according to the invention, powerful motors or drive units for the profiling or forming unit are no longer necessary. The device is therefore easier to handle in terms of transport and assembly and is more economical overall. The assembly work is significantly simplified. For drinking water tanks, for example from thin stainless steel sheet, the said type of production using the method according to the invention or the device according to the invention is an optimal economic solution.

Weitere Ausführungsformen und Vorteile der Erfindung ergeben sich durch die in den Ansprüchen ferner aufgeführten Merkmale sowie durch die nachstehend angegebenen Ausführungsbeispiele.Further embodiments and advantages of the invention result from the features further listed in the claims and from the exemplary embodiments given below.

KURZE BESCHREIBUNG DER ZEICHNUNGSHORT DESCRIPTION OF THE DRAWING

Die Erfindung sowie vorteilhafte Ausführungsformen und Weiterbildungen derselben werden im Folgenden anhand der in der Zeichnung dargestellten Beispiele näher beschrieben und erläutert. Es zeigen:

Fig. 1
Draufsicht auf eine Vorrichtung zur Herstellung eines Silos aus einem wendelförmig gebogenen Blechband, das von einer Haspel abgezogen wird, einer Profiliereinrichtung zugeführt und anschließend einer Antriebseinrichtung mit Verbindungseinrichtung zugeführt wird, wobei zwischen Antriebseinrichtung und Haspel eine Zuführeinrichtung eingesetzt wird, die bei Beginn des Herstellvorgangs das von der Haspel abgezogene Blechband der Antriebseinrichtung über die Profiliereinrichtung zuführt,
Fig. 2
Perspektivdarstellung der Vorrichtung gemäß Fig. 1 mit Profiliereinrichtung, Zuführeinrichtung, Antriebseinrichtung und Verbindungseinrichtung,
Fig. 3
perspektivische Darstellung der Zuführeinrichtung mit Profiliereinrichtung mit teilweise eingezogenem Blechband,
Fig. 4
Außenansicht der Zuführeinrichtung und Profiliereinrichtung gemäß Fig. 3,
Fig. 5
Innenansicht der Zuführeinrichtung und Profiliereinrichtung gemäß Fig. 3,
Fig. 6
Stirnansicht der Zuführeinrichtung und Profiliereinrichtung gemäß Fig. 3 in Bewegungsrichtung des Blechbandes gesehen,
Fig. 7
perspektivische Detailansicht von Innen der Zuführeinrichtung, Profiliereinrichtung, Antriebseinrichtung und Verbindungseinrichtung mit zugeführtem Blechband,
Fig. 8
Detailperspektive des Details A gemäß Fig. 7,
Fig. 9
schematische Draufsicht auf die Zuführeinrichtung, Profiliereinrichtung, Antriebseinrichtung, Verbindungseinrichtung gemäß Fig. 7,
Fig. 10
Detaildraufsicht des Details D von Fig. 9 und,
Fig. 11
Draufsicht auf eine Vorrichtung zur Herstellung eines Silos aus einem wendelförmig gebogenen Blechband, das von einer Haspel abgezogen wird, einer Formeinrichtung, einer Antriebseinrichtung und Verbindungseinrichtung zugeführt wird gemäß dem Stand der Technik.
The invention as well as advantageous embodiments and further developments thereof are described and explained in more detail below with reference to the examples shown in the drawing. They show:
Fig.1
Top view of a device for producing a silo from a spirally bent sheet metal strip which is drawn off a reel, fed to a profiling device and then fed to a drive device with a connecting device, wherein a feeding device is inserted between the drive device and the reel, which feeds the sheet metal strip drawn off the reel to the drive device via the profiling device at the start of the production process,
Fig.2
Perspective view of the device according to Fig.1 with profiling device, feeding device, drive device and connecting device,
Fig.3
perspective view of the feeding device with profiling device with partially drawn-in sheet metal strip,
Fig.4
External view of the feeding device and profiling device according to Fig.3 ,
Fig.5
Interior view of the feeding device and profiling device according to Fig.3 ,
Fig.6
Front view of the feeding device and profiling device according to Fig.3 seen in the direction of movement of the sheet metal strip,
Fig.7
perspective detailed view from the inside of the feeding device, profiling device, drive device and connecting device with fed sheet metal strip,
Fig.8
Detail perspective of detail A according to Fig.7 ,
Fig.9
schematic top view of the feeding device, profiling device, drive device, connecting device according to Fig.7 ,
Fig.10
Detail view of detail D of Fig.9 and,
Fig. 11
Top view of a device for producing a silo from a spirally bent sheet metal strip which is drawn off from a reel and fed to a forming device, a drive device and a connecting device according to the prior art.

WEGE ZUM AUSFÜHREN DER ERFINDUNGWAYS TO CARRY OUT THE INVENTION

In Fig. 11 ist eine bekannte Vorrichtung zur Herstellung eines Behälters 10, insbesondere Silos, aus einem wendelförmig gebogenen Blechband 20 dargestellt. Eine derartige Vorrichtung ist beispielsweise in der EP 1181115 B1 , der EP 3 189 906 A1 oder der EP 3 189 908 A1 offenbart.In Fig. 11 A known device for producing a container 10, in particular a silo, from a spirally bent sheet metal strip 20 is shown. Such a device is described, for example, in EP1181115B1 , the EP 3 189 906 A1 or the EP 3 189 908 A1 disclosed.

Dabei wird das Blechband 20 von einer Haspel 18 abgezogen und zunächst einer Formeinrichtung 25 zugeführt. Diese Formeinrichtung 25 erzeugt über einzelne Formstationen eine Abkantung des oberen Randbereiches des zugeführten Blechbandes 20, so dass im Ergebnis ein nach außen weisender Flansch im oberen Randbereich des Blechbandes 20 vorhanden ist. Gleichzeitig bewirkt die Formeinrichtung 25, dass die Ebene des zugeführten Blechbandes 20 gekrümmt wird, im Wesentlichen entsprechend dem Krümmungsradius des zu erstellenden Behälters 10. Die Formeinrichtung 25 besitzt weiterhin ein eigenes Antriebsaggregat, um den Vortrieb des Blechbandes 20 zu gewährleisten. Das profilierte und gekrümmte Blechband 20 wird im weiteren Verlauf einer Antriebseinrichtung 40 zugeführt, an die ein Montagerahmen 32 angeschlossen ist, der in einer Draufsicht gesehen zylindrisch umlaufend ausgebildet ist und auf dem der untere Randbereich des jeweils zugeführten unteren Blechbandes 20 drehbar gelagert ist. Unmittelbar nach der Antriebseinrichtung 40 ist eine Verbindungseinrichtung 50 vorhanden, die als Schweißverbindungseinrichtung ausgebildet ist und den jeweiligen unteren Blechrand der bestehenden bereits montierten Behälterkonstruktion mit dem oberen Blechrand des zugeführten Blechbandes 20 verschweißt. Zusätzlich sind in Umfangsrichtung noch beabstandet zwei weitere Antriebseinheiten 28 vorhanden. Das zugeführte Blechband 20 mit seiner Krümmung und Randprofilierung verläuft wendelförmig in die Höhe zur Bildung der Mantelfläche des Behälters 10.The sheet metal strip 20 is drawn off a reel 18 and first fed to a forming device 25. This forming device 25 creates a bevel in the upper edge region of the fed sheet metal strip 20 via individual forming stations, so that as a result there is an outward-facing flange in the upper edge region of the sheet metal strip 20. At the same time, the forming device 25 causes the plane of the fed sheet metal strip 20 to be curved, essentially in accordance with the radius of curvature of the container 10 to be produced. The forming device 25 also has its own drive unit to ensure the advancement of the sheet metal strip 20. The profiled and curved sheet metal strip 20 is then fed to a drive device 40, to which an assembly frame 32 is connected, which is designed to be cylindrical when viewed from above and on which the lower edge region of the lower sheet metal strip 20 fed in each case is rotatably mounted. Immediately after the drive device 40 there is a connecting device 50 which is designed as a welding connection device and welds the respective lower sheet metal edge of the existing, already assembled container construction to the upper sheet metal edge of the supplied sheet metal strip 20. In addition, two further drive units 28 are provided at a distance in the circumferential direction. The supplied sheet metal strip 20 with its curvature and edge profiling runs spirally upwards to form the outer surface of the container 10.

Da die Formeinrichtung 25 sowohl die Krümmung als auch die vollständige Profilierung des zugeführten Blechbandes 20 vornimmt und einen eigenen Antrieb besitzt, ist diese Formeinrichtung 25 relativ voluminös und weist ein hohes Gewicht auf.Since the forming device 25 carries out both the curvature and the complete profiling of the supplied sheet metal strip 20 and has its own drive, this forming device 25 is relatively voluminous and has a high weight.

Der Durchmesser des Behälters 10 ist in Fig. 11 mit dem Bezugszeichen D angegeben. In der Praxis können mit derartigen Vorrichtungen beispielsweise Silos mit einem Durchmesser von 10 Metern bis zu 50 Metern oder größer erstellt werden.The diameter of the container 10 is in Fig. 11 indicated with the reference symbol D. In practice, such devices can be used to construct silos with a diameter of 10 metres up to 50 metres or larger.

Die Fig. 1 und 2 zeigen eine Vorrichtung zur Herstellung eines Behälters 10 aus einem wendelförmig gebogenen Blechband, das nach demselben Prinzip arbeitet wie die bekannte Vorrichtung gemäß Fig. 11.The Fig.1 and 2 show a device for producing a container 10 from a spirally bent sheet metal strip, which operates on the same principle as the known device according to Fig. 11 .

Ein entscheidener Unterschied besteht jedoch darin, dass die Formeinrichtung 25 durch eine Profiliereinrichtung 30 ersetzt wird. Die Profiliereinrichtung 30 ist an einer Zuführeinrichtung 60 angeschlossen. Die Profiliereinrichtung 30 ist volumen- und gewichtsmäßig deutlich gegenüber der bekannten Formeinrichtung reduziert, da sie keinen eigenen Antrieb besitzt, was sich günstig bezüglich des Transports und der Montage der Profiliereinrichtung 30 mit Zuführeinrichtung 60 auswirkt.A crucial difference, however, is that the forming device 25 is replaced by a profiling device 30. The profiling device 30 is connected to a feeding device 60. The profiling device 30 is significantly smaller in volume and weight than the known forming device because it does not have its own drive, which is beneficial for the transport and assembly of the profiling device 30 with feeding device 60.

Eine Ausführungsbeispiel der Zuführeinrichtung 60 ist in den Figuren 3 bis 6 dargestellt.An embodiment of the feed device 60 is shown in the Figures 3 to 6 shown.

Die Zuführeinrichtung 60 weist einen Führungsrahmen 48 auf, der im dargestellten Ausführungsbeispiel querschnittsmäßig in den Eckpunkten eines gedachten Quadrats angeordnete Rahmenprofile 49 aufweist. An dem Führungsrahmen 48 ist die Profiliereinrichtung 30 mit im Ausführungsbeispiel zwei Profilierstationen 30.1 angeschlossen. Der Führungsrahmen 48 ist über Führungsrahmenstützen 34 auf dem Untergrund gelagert. Sowohl die Rahmenprofile 49 als auch die Führungsrahmenstützen 34 sind in ihrer jeweiligen Längsrichtung variabel einstellbar, so dass über die Führungsrahmenstützen 34, die Höhe des Führungsrahmens 48 eingestellt werden kann und über die Rahmenprofile 49 in Längsrichtung L des Blechbandes 20 die Positionierung der Profiliereinrichtung 30 der jeweils aktuellen Montagesituation angepasst werden kann.The feed device 60 has a guide frame 48, which in the embodiment shown has frame profiles 49 arranged in cross-section at the corners of an imaginary square. The profiling device 30 with two profiling stations 30.1 in the embodiment is connected to the guide frame 48. The guide frame 48 is mounted on the base via guide frame supports 34. Both the frame profiles 49 and the guide frame supports 34 are variably adjustable in their respective longitudinal direction, so that the height of the guide frame 48 can be adjusted via the guide frame supports 34 and the Positioning of the profiling device 30 can be adapted to the current assembly situation.

Die Zuführeinrichtung 60 weist weiterhin ein Zugglied 46 auf, das im Ausführungsbeispiel als Gliederkette ausgebildet ist. Dieses Zugglied 46 wird lösbar mit dem Stirnrandbereich des Blechbandes 20 verbunden. Das Zugglied 46 steht mit einer Betätigungseinheit in Wirkverbindung, das im dargestellten Ausführungsbeispiel als Handradeinrichtung 22 ausgebildet ist. Durch die Drehung der Handradeinrichtung 22 wird auf das Zugglied 46 aufgrund des vorhandenen Drehformschlusses eine Zugkraft ausgeübt, die sich auf das angeschlossene Blechband 20 überträgt und dadurch eine Bewegung des Blechbandes 20 in Längsrichtung L veranlasst.The feed device 60 also has a tension member 46, which in the exemplary embodiment is designed as a link chain. This tension member 46 is detachably connected to the front edge area of the sheet metal strip 20. The tension member 46 is operatively connected to an actuating unit, which in the exemplary embodiment shown is designed as a handwheel device 22. By rotating the handwheel device 22, a tensile force is exerted on the tension member 46 due to the existing rotary form fit, which is transferred to the connected sheet metal strip 20 and thereby causes a movement of the sheet metal strip 20 in the longitudinal direction L.

Die Betätigungseinheit beziehungsweise die Handradeinrichtung 22 ist im Bereich der Antriebseinrichtung 40 vorhanden, derart, dass bei Betätigung der Betätigungseinheit (Handradeinrichtung 22) das Blechband 20 so weit in die Antriebseinrichtung 40 gezogen wird, dass das Blechband 20 von dieser erfasst wird und weitertransportiert werden kann.The actuating unit or the handwheel device 22 is present in the area of the drive device 40 such that when the actuating unit (handwheel device 22) is actuated, the sheet metal strip 20 is pulled so far into the drive device 40 that the sheet metal strip 20 is grasped by the latter and can be transported further.

Die Zuführeinrichtung 60 wird bei dem Start des Herstellvorgangs für den Behälter 10 eingesetzt. In der Praxis läuft dies wie folgt ab.The feed device 60 is used at the start of the manufacturing process for the container 10. In practice, this works as follows.

Das Blechband 20 wird von der Haspel 18, die drehbar gelagert ist, abgezogen und der Profiliereinrichtung 30 zugeführt. Sobald das Blechband 20 an der Profiliereinrichtung 30 ansteht, wird das Zugglied 46 an die Stirnseite des Blechbandes 20 angeschlossen. Dann wird das Blechband 20 durch Betätigung der Betätigungseinheit (Handradeinrichtung 22) weiter in Längsrichtung L gezogen und durch die Profiliereinrichtung 30 mit ihren Profilierstationen 30.1 gezogen, wodurch die Profilierung des im Ausführungsbeispiel oberen Blechrandes des Blechbandes 20 schrittweise durchgeführt wird. Die Betätigungseinheit (Handradeinrichtung 22) wird solange aktiviert, bis das in seinem oberen Randbereich zumindest teilweise profilierte Blechband 20 der Antriebseinrichtung 40 zugeführt ist. Sobald diese Zuführung erfolgt ist, wird das Zugglied 46 gelöst und der weitere Transport des Blechbandes 20 zur Herstellung der Mantelfläche des Behälters 10 wird von der Antriebseinrichtung 40 übernommen.The sheet metal strip 20 is drawn off from the reel 18, which is rotatably mounted, and fed to the profiling device 30. As soon as the sheet metal strip 20 is at the profiling device 30, the tension member 46 is connected to the front side of the sheet metal strip 20. The sheet metal strip 20 is then pulled further in the longitudinal direction L by actuating the actuating unit (handwheel device 22) and pulled through the profiling device 30 with its profiling stations 30.1, whereby the profiling of the upper sheet metal edge of the sheet metal strip 20 in the embodiment is carried out step by step. The actuating unit (handwheel device 22) is activated until the sheet metal strip 20, which is at least partially profiled in its upper edge area, has been formed. Sheet metal strip 20 is fed to the drive device 40. As soon as this feeding has taken place, the tension member 46 is released and the further transport of the sheet metal strip 20 for producing the outer surface of the container 10 is taken over by the drive device 40.

Die Profiliereinrichtung 30 ist als leichte Baueinheit ausgeführt, da durch diese keine Krümmung des Blechbandes 20 vorgenommen wird und kein Antriebsaggregat vorhanden ist. Das Blechband 20 wird somit der Antriebseinrichtung 40 linear geradlinig zugeführt und die Krümmung des Blechbandes 20 in Bezug auf den Krümmungsradius des zu erstellenden Behälters 10 und gegebenenfalls weitere Profilierungen werden innerhalb der Antriebseinrichtung 40 vorgenommen.The profiling device 30 is designed as a lightweight structural unit, since it does not cause any curvature of the sheet metal strip 20 and there is no drive unit. The sheet metal strip 20 is thus fed to the drive device 40 in a linear, straight line and the curvature of the sheet metal strip 20 in relation to the radius of curvature of the container 10 to be produced and, if necessary, further profiling is carried out within the drive device 40.

Nachdem an dem Blechband 20 nach Durchlauf durch die Antriebseinrichtung 40 die entsprechende Krümmung und Profilierung des Randbereiches vorgenommen worden ist, werden anschließend benachbarte Randbereiche des oberen beziehungsweise unteren Blechbandes 20 mittels der Verbindungseinrichtung 50 miteinander verbunden. Im dargestellten Ausführungsbeispiel ist die Verbindungseinrichtung 50 als Schweißverbindungseinrichtung ausgebildet. Die Verbindungseinrichtung 50 kann auch als Falzverbindungseinrichtung ausgebildet sein.After the appropriate curvature and profiling of the edge region has been carried out on the sheet metal strip 20 after it has passed through the drive device 40, adjacent edge regions of the upper and lower sheet metal strip 20 are then connected to one another by means of the connecting device 50. In the exemplary embodiment shown, the connecting device 50 is designed as a welded connecting device. The connecting device 50 can also be designed as a folded connecting device.

Um eine optimale Führung des Blechbandes 20 in Längsrichtung L entlang der Zuführeinrichtung 60 zu gewährleisten, sind an dem Führungsrahmen 48 Führungseinheiten 44 vorhanden, in denen die Führung des unteren Randbereiches des zugeführten Blechbandes 20 während der linearen Längsverschiebung in Richtung L durch die Zuführeinrichtung 60 gewährleistet wird. Dadurch wird die Stabilität des Zuführvorgangs zusätzlich erhöht.In order to ensure optimal guidance of the sheet metal strip 20 in the longitudinal direction L along the feed device 60, guide units 44 are provided on the guide frame 48, in which the guidance of the lower edge region of the fed sheet metal strip 20 is ensured during the linear longitudinal displacement in the direction L by the feed device 60. This further increases the stability of the feeding process.

Das Zugglied 46 kann auch als Seileinheit, Profileinheit oder dergleichen ausgebildet sein.The tension member 46 can also be designed as a cable unit, profile unit or the like.

Im dargestellten Ausführungsbeispiel wird die Handradeinrichtung 22 manuell betätigt. Es ist auch möglich, das Zugglied 46 durch ein zusätzlich vorhandenes motorisch betriebenes Aggregat zu aktivieren, um die Längsverschiebung L des Blechbandes 20 zu Beginn des Montagevorgangs in die Wege zu leiten, bis dieses die Antriebseinrichtung 40 erreicht hat. Danach wird das Antriebsaggregat abgeschaltet und das Zugglied 46 vom Blechband 20 entkoppelt.In the embodiment shown, the handwheel device 22 is operated manually. It is also possible to activate the tension member 46 by an additional motor-driven unit in order to initiate the longitudinal displacement L of the sheet metal strip 20 at the beginning of the assembly process until it has reached the drive device 40. The drive unit is then switched off and the tension member 46 is decoupled from the sheet metal strip 20.

In einer nicht dargestellten Ausführungsvariante wird auf die Radeinrichtung 22 (manuell oder motorisch betrieben) mit Zugglied 46 verzichtet und an deren Stelle ein leichtes Antriebsaggregat an der Profiliereinrichtung 30 angeordnet, das den Vortrieb des Blechbandes 20 über die Profiliereinrichtung 30 bis zur Antriebseinrichtung 40 gewährleistet. Sobald das Blechband 20 von der Antriebseinrichtung 40 erfasst wird, wird dann dieses leichte Aggregat abgeschaltet und vom Vortrieb des Blechbandes 20 entkoppelt.In a variant not shown, the wheel device 22 (manually or motor-operated) with tension member 46 is dispensed with and instead a light drive unit is arranged on the profiling device 30, which ensures the propulsion of the sheet metal strip 20 via the profiling device 30 to the drive device 40. As soon as the sheet metal strip 20 is grasped by the drive device 40, this light unit is switched off and decoupled from the propulsion of the sheet metal strip 20.

In der Perspektivdarstellung von Fig. 2 ist ein Behälter 10 dargestellt, der unter Einsatz der Vorrichtung gemäß Fig. 1 erstellt worden ist und vier Lagen von wendelförmig übereinander angeordneten miteinander verbundenen Blechbändern darstellt. Die obere und untere Blechbandlage ist dabei in einem horizontalen Schnitt frei geschnitten, so dass einerseits eine zuverlässige Lagerung im unteren Bereich und andererseits ein problemloser Dachaufbau im oberen Bereich gewährleistet ist.In the perspective view of Fig.2 a container 10 is shown which, using the device according to Fig.1 and consists of four layers of interconnected sheet metal strips arranged in a spiral shape one above the other. The upper and lower sheet metal strip layers are cut freely in a horizontal section, so that on the one hand reliable storage in the lower area and on the other hand a problem-free roof construction in the upper area is guaranteed.

Die Figuren 7 bis 10 zeigen im Detail die Vorrichtung gemäß Fig. 1 beziehungsweise 2 mit Zuführeinrichtung 60, Profiliereinrichtung 30, Antriebseinrichtung 40 und Verbindungseinrichtung 50 mit bis kurz vor die Antriebseinrichtung 40 durch die Zuführeinrichtung 60 zugeführten Blechbandes 20.The Figures 7 to 10 show in detail the device according to Fig.1 or 2 with feeding device 60, profiling device 30, drive device 40 and connecting device 50 with the sheet metal strip 20 fed by the feeding device 60 up to just before the drive device 40.

Aus dieser Darstellung ist ersichtlich, dass die Betätigungseinheit (Handradeinrichtung 22) in der Mitte der Antriebseinrichtung 40 mit ihren vier Antriebseinheiten 41.1, 41.2, 41.3, 41.4 angeordnet ist. Das Blechband 20 wird der Antriebseinrichtung 40 über die Zuführeinrichtung 60 zugeführt, wobei der obere Randbereich des Blechbandes 20 durch die Profiliereinrichtung 30 bereits eine teilweise Profilierung aufweist, dahingehend, dass ein nach außen weisender Flansch angeformt ist. Innerhalb der Antriebseinrichtung 40 wird dieser Flansch durch zusätzliche Profiliereinheiten bis in seine endgültige Formung verformt, dem Blechband 20 eine der Krümmung des zu erstellenden Behälters 10 entsprechende Krümmung eingeformt und anschließend der Verbindungseinrichtung 50 zugeführt, die die geformte Oberseite des zugeführten Blechbandes 20 mit der Unterseite des in den Figuren 7 bis 10 nicht dargestellten unteren Randbereichs des bereits vorhandenen Blechbandes 20 mittels Schweißung verbindet.From this illustration it can be seen that the actuating unit (handwheel device 22) is arranged in the middle of the drive device 40 with its four drive units 41.1, 41.2, 41.3, 41.4. The sheet metal strip 20 is fed to the drive device 40 via the feed device 60, whereby the upper edge area of the sheet metal strip 20 is already partially profiled by the profiling device 30, such that an outwardly facing flange is formed. Within the drive device 40, this flange is deformed by additional profiling units until it reaches its final shape, the sheet metal strip 20 is given a curvature corresponding to the curvature of the container 10 to be produced and is then fed to the connecting device 50, which connects the formed upper side of the supplied sheet metal strip 20 with the lower side of the Figures 7 to 10 not shown lower edge area of the already existing sheet metal strip 20 by welding.

Die erfindungsgemäße Vorrichtung zur Herstellung eines Behälters 10 aus einem wendelförmig gebogenen Blechband 20 unterscheidet sich von den bekannten Lösung dadurch, dass die bekannte Formeinrichtung durch eine einfache und leichte Profiliereinrichtung 30 ersetzt wird, wobei das Blechband 20 zu Beginn des Herstellvorgangs durch die Zuführeinrichtung 60 über die Profiliereinrichtung 30 der Antriebseinrichtung 40 zugeführt wird, wobei gleichzeitig eine zumindest teilweise Profilierung des Randbereiches des Blechbandes durchgeführt wird, ohne dass eine Formeinrichtung eingesetzt werden muss, die ein hohes Volumen und ein hohes Gewicht aufweist. Dies bietet Vorteile hinsichtlich einer wirtschaftlichen Herstellung insbesondere bei dünnwandigen Behältern.The device according to the invention for producing a container 10 from a spirally bent sheet metal strip 20 differs from the known solution in that the known forming device is replaced by a simple and lightweight profiling device 30, wherein the sheet metal strip 20 is fed at the beginning of the manufacturing process by the feed device 60 via the profiling device 30 to the drive device 40, wherein at the same time an at least partial profiling of the edge region of the sheet metal strip is carried out without having to use a forming device that has a high volume and a high weight. This offers advantages in terms of economical production, especially for thin-walled containers.

Dadurch, dass die Profiliereinrichtung 30 keine Krümmung des Blechbandes vornehmen muss, das heißt das Blechband 20 linear der Antriebseinrichtung 40 zugeführt wird, kann eine wirtschaftliche Montage gewährleistet werden. Darüber hinaus ist eine Anpassbarkeit an die Herstellung von Behältern 10 mit unterschiedlichen Durchmesser problemlos möglich. Die erfindungsgemäße Vorrichtung zeichnet sich durch ein geringes Transportvolumen, geringes Gewicht, eine hohe Variabilität bezüglich des Montageverfahrens und einen wirtschaftlichen Einsatz aus.Because the profiling device 30 does not have to bend the sheet metal strip, i.e. the sheet metal strip 20 is fed linearly to the drive device 40, economical assembly can be ensured. In addition, adaptability to the production of containers 10 with different diameters is easily possible. The device according to the invention is characterized by a small transport volume, low weight, high variability with regard to the assembly process and economical use.

Claims (16)

  1. Method for producing a cylindrical container (10), in particular a silo, in which method
    - a sheet-metal strip (20) is drawn off from a reel (18),
    said sheet-metal strip (20) being helically bent and profiled in the upper and/or lower peripheral region, and the peripheral regions of adjacent sheet-metal strips (20) disposed on top of one another subsequently being connected to one another;
    - the sheet-metal strip (20) is supplied to a profiling device (30) for forming the profile of the upper and/or lower periphery;
    - the sheet-metal strip (20) is supplied to a drive device (40);
    - the sheet-metal strip (20) is supplied to a connecting device (50) which connects the adjacent longitudinal peripheries of the supplied sheet-metal strips (20) to one another so as to form a shell face of the container (10);
    - assembly frames (32), which at least in regions run cylindrically on the circumference and on which the sheet-metal strips (20) connected to one another are mounted in a helical and rotationally displaceable manner and upon producing the connection are rotationally moved by means of the drive device (40), are used,
    - characterized in that
    - a profiling device (30), which does not perform any helical bending of the supplied sheet-metal strip (20) and performs the profiling of the peripheral regions of the supplied sheet-metal strip (20) only at least partially, is used between the reel (18) and the drive device (40);
    - a supply device (60), which is connected to the drive device (40) or to the profiling device (30), and which at the beginning of the production procedure of the container (10) by way of a coupling device (42) is releasably connectable to the sheet-metal strip (20) that is able to be drawn off from the reel (18) and supplies the latter to the drive device (40) by way of the profiling device (30), is used, the connection between the supply device (60) and the sheet-metal strip being released once the sheet-metal strip (20) has been acquired by the drive device (40) .
  2. Method according to Claim 1,
    - characterized in that
    - the sheet-metal strip profiled by the profiling device (30) is supplied to the drive device (40) in a rectilinear, tangential manner.
  3. Method according to Claim 1 or 2,
    - characterized in that
    - the sheet-metal strip (20) between the profiling device (30) and the drive device (40) is guided at least in regions, in particular in a linear manner, in at least one guide unit (44).
  4. Method according to one or a plurality of the preceding claims,
    - characterized in that
    - the sheet-metal strip (20) by means of the supply device (60)/coupling device (42) is supplied by way of a tension member (46) or threaded member which is able to be operated manually or by motor and is releasably connectable; or
    - a supply device (60), which is configured as a thrust drive apparatus disposed on/in front of the profiling device (30), and which at the beginning of the production procedure pushes the leading end of the sheet-metal strip through the profiling device (30) and supplies said sheet-metal strip to the drive device (40) and is switched off thereafter, is used.
  5. Method according to one or a plurality of the preceding claims,
    - characterized in that
    - a guide frame (48) to which the profiling device (30) and the drive device (40) are connected is used between the profiling device (30) and the drive device (40).
  6. Method according to one or a plurality of the preceding claims,
    - characterized in that
    - additional profiling measures, which cause helical bending of the sheet-metal strip (20) and/or further profiling of the peripheral region of the sheet-metal strip (20), are caused by means of the drive device (40).
  7. Method according to one or a plurality of the preceding claims,
    - characterized in that
    - a connecting device (50) which is configured as a welding or folded-joint device is used after the profiling has been produced.
  8. Method according to one or a plurality of the preceding claims,
    - characterized in that
    - one or a plurality of profiling station/stations (30.1) which implement the profiling of the peripheral region of the supplied sheet-metal strip (20) in steps are used within the profiling device (30).
  9. Apparatus for carrying out the method according to one or a plurality of Claims 1 to 9, having
    - a reel (18) on which the sheet-metal strip (20) is disposed so as to be able to be drawn off;
    - a profiling device (30) for profiling the upper and/or lower peripheral region of the sheet-metal strip (20);
    - a drive device (40) for rotationally moving the sheet-metal strip (20) in the cylindrical shell face of the container (10);
    - a connecting device (50) for connecting adjacent supplied longitudinal peripheries of the sheet-metal strip so as to form the cylindrical shell face of the container;
    - an assembly frame (32) which runs cylindrically at least in regions, the respectively lower sheet-metal periphery of the supplied sheet-metal strip (20) being mounted so as to be rotationally displaceable in relation to said assembly frame (32),
    - characterized in that
    - there is a supply device (60) having a coupling device (42), which at the beginning of the production procedure is releasably connectable to the end region of the sheet-metal strip (20) that is able to be drawn off from the reel (18);
    - the profiling device (30) is configured in such a way that it does not carry out any helical bending of the sheet-metal strip and performs profiling of the peripheral region of the supplied sheet-metal strip;
    - the supply device (60) is configured in such a way that it supplies the sheet-metal strip to the drive device (40), in particular in a linear, tangential manner, by way of the profiling device (30) ;
    - the coupling device (42) is configured in such a way that it guides the sheet-metal strip (20) through the profiling device (30) and supplies said sheet-metal strip (20) to the drive device (40), and after supplying is releasable from the sheet-metal strip (20).
  10. Apparatus according to Claim 9,
    - characterized in that
    - the supply device (60) has a frame (48) which is connected to the drive device (40) and the profiling device (30).
  11. Apparatus according to Claim 9 or 10,
    - characterized in that
    - the supply device (60), or the frame, respectively, has at least one guide unit (44) in which the sheet-metal strip (20) supplied by the drive device (40) is guided.
  12. Apparatus according to one or a plurality of Claims 9 to 11,
    - characterized in that
    - the supply device (60) or the profiling device (30) has a motorized assembly which via a coupling device (42) acts on the leading end of the sheet-metal strip (20) by way of a tensile force or thrust force, as a result of which said sheet-metal strip is moved from the profiling device (30)/reel (18) to the drive device (40).
  13. Apparatus according to one or a plurality of Claims 9 to 11,
    - characterized in that
    - the supply device (60) on the drive device (40) has a device, in particular a wheel device (22), which is able to be driven manually or by motor, the rotating moving of said device being converted into a translatory movement of the coupling device (42) and thus of the sheet-metal strip (20).
  14. Apparatus according to one or a plurality of Claims 9 to 13,
    - characterized in that
    - the supply device (60)/coupling device (42) has a tension member which is in particular configured as a chain, rope or profile.
  15. Apparatus according to one or a plurality of Claims 9 to 14,
    - characterized in that
    - the supply device (60) has a gearbox.
  16. Apparatus according to one or a plurality of Claims 9 to 15,
    - characterized in that
    - the supply device (60) is configured to be telescopic and lockable in the longitudinal direction (L) thereof, or the profiling device (30) is connectable to the supply device (60) in different positions, respectively.
EP20707550.8A 2019-03-01 2020-02-11 Method for producing a cylindrical container, and apparatus for this purpose Active EP3930935B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019001432.4A DE102019001432A1 (en) 2019-03-01 2019-03-01 Method of manufacturing a cylindrical container and apparatus therefor
PCT/DE2020/000022 WO2020177791A1 (en) 2019-03-01 2020-02-11 Method for producing a cylindrical container, and apparatus for this purpose

Publications (2)

Publication Number Publication Date
EP3930935A1 EP3930935A1 (en) 2022-01-05
EP3930935B1 true EP3930935B1 (en) 2024-05-01

Family

ID=69723752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20707550.8A Active EP3930935B1 (en) 2019-03-01 2020-02-11 Method for producing a cylindrical container, and apparatus for this purpose

Country Status (3)

Country Link
EP (1) EP3930935B1 (en)
DE (2) DE102019001432A1 (en)
WO (1) WO2020177791A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2250239C3 (en) 1972-10-13 1980-09-11 Silo Verfahrens Ag, Zug (Schweiz) Machine for making a large diameter pipe, especially a silo
GB2096227A (en) * 1981-04-06 1982-10-13 Dravo Corp Method and apparatus for silo construction
DE19924808A1 (en) 1999-05-29 2000-12-21 Xaver Lipp Method for producing a device for storing solids, liquids and / or gases, in particular a container for storing food, and device for carrying out such a production method
AU2012205243A1 (en) * 2011-07-15 2013-01-31 Mr And Kl Jaeschke Pty Ltd A System for Manufacturing a Container
DE102012018935A1 (en) 2012-09-26 2014-03-27 Xaver Lipp Container made of a single-layer, helically bent sheet metal strip
EP3189908B1 (en) 2016-01-11 2019-04-24 Xaver Lipp Device for making a cylindrical container with large diameter, in particular of a silo
EP3189906B1 (en) 2016-01-11 2019-04-10 Xaver Lipp Device for making a cylindrical container with large diameter, in particular of a silo

Also Published As

Publication number Publication date
EP3930935A1 (en) 2022-01-05
DE102019001432A1 (en) 2020-09-03
DE112020001031A5 (en) 2021-12-02
WO2020177791A1 (en) 2020-09-10

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