Container for viscous material and device for transporting viscous material comprising such a container

Abstract

The invention relates to a container (10) for receiving and / or dispensing a viscous material, having two opposite longitudinal ends (11, 12), comprising: - at least one side wall (13) extending between the two longitudinal ends (11, 12) and circumferentially delimiting an interior space (14) of the container (10), wherein the side wall (13) has at least one support edge (15) at a first (11) of the longitudinal ends (11, 12); and - a container base (16) closing off the interior space (14) at the first longitudinal end (11), wherein the container base (16) is arranged offset from the support edge (15) of the side wall (13) towards the interior space (14), wherein the container base (16) has at least one support extension (17) extending in a direction (RA) facing away from the interior space (14) for supporting the container base (16).

Description

[0001] The invention relates to a container for a viscous material and a device for conveying a viscous material using such a container. A container according to the preamble of patent claim 1 is known, for example, from DE 10 2016 107 132 A1.

[0002] Products are packaged and transported in containers for various applications. Viscous materials, such as adhesives or sealants, are typically placed in a film bag (liner) inside metal containers. Such materials are often removed from the containers using a press or by pumping using a plunger pump combined with a follower plate, which conveys the contents from the container interior under pressure. A device with a combination of pump and follower plate is known, for example, from EP 4 155 244 A1.

[0003] When filling a container with viscous material, pumping the viscous material out of a container, or even transporting a container in a filled or empty state, it often happens that the container bottom is pushed outward. This occurs through plastic deformation of the container bottom, resulting in a bulge instead of a flat bottom shape.

[0004] For example, a container for receiving and dispensing a viscous material is known from the aforementioned DE 10 2016 107 132 A1, which has a flat container base. The container base is offset inward relative to a support edge. In order to transport, store, fill, or empty such containers without causing the base to bulge, it is necessary to place a support element, often a wooden board or a support disc, beneath the container base. This is complex, as a corresponding support element is required for each container. In addition, devices for removing the viscous material must be provided with a support or support structure to prevent the container base from bulging.

[0005] The invention is therefore based on the object of providing an improved container for a viscous material that has increased stability, is easier to handle, and saves costs. The invention is further based on the object of specifying a device with such a container.

[0006] According to the invention, this object is achieved with regard to the holding device by the subject matter of claim 1. With regard to the device, the above-mentioned object is achieved by the subject matter of claim 10.

[0007] Specifically, the problem is solved by a container for receiving and / or dispensing a viscous material, which has two opposite longitudinal ends and further comprises the following: at least one side wall extending between the two longitudinal ends and circumferentially delimiting an interior of the container, wherein the side wall has at least one support edge at a first of the longitudinal ends; and a container base closing off the interior at the first longitudinal end, wherein the container base is arranged offset from the support edge of the side wall toward the interior.

[0008] According to the invention, the container bottom has at least one support extension which extends in a direction away from the interior to support the container bottom.

[0009] The invention has the significant advantage that the container base's support extension prevents bulging or outward bending. In various usage or operating states of the container, for example, when filling the container with a product, particularly a viscous material, during transport of the container, or when using the container in a device that pumps out the filled product, increased forces occur in the interior of the container, acting from the inside against the container base. These forces can be, for example, the weight of the product, filling forces, and / or pumping forces. Other forces acting internally on the container base are possible.

[0010] Furthermore, the support extension reduces deflection of the container base when the container is lifted during handling, for example, by a lifting device. In this case, the container base is temporarily unsupported, while the support extension still provides sufficient support.

[0011] During use, the container is conventionally arranged such that the supporting edge of the side wall is directed downwards. The container rests with its supporting edge on a counter-surface or counter-contour, for example a storage surface or a support structure of a device for removing the product. During use, the container is preferably arranged upright. The container base is arranged opposite the counter-surface or counter-contour. If forces act from the inside against the container base inside the container, the support extension supports the container base outwards against the counter-surface or contour. This prevents the container base from bulging or bending outwards. The container base is therefore designed to be more dimensionally stable. For example, a product contained in the container can be pumped out more easily because the formation of dead space caused by bulging is prevented.A removal unit, in particular a pump's squeezing piston, can discharge the product down to the container bottom with virtually no residue. In other words, the product can be removed from the container in such a way that almost no residual product remains in the container interior.

[0012] The invention has the further advantage that the support extension eliminates the need for separate support elements, such as support boards, support disks, or the like, which were previously used to support the container base. A particular advantage is that counterstructures specifically designed to support the container base, such as ribs or fins, can be omitted on devices for removing the product from the interior of the container. The support extension of the container base thus simplifies handling of the container itself. In addition, the container according to the invention saves costs. In general, the support extension enables the container to be centered, for example, under a press or pump, which facilitates handling.

[0013] According to the invention, the support extension extends in the direction away from the interior of the container. In other words, the support extension extends outward, preferably substantially in the longitudinal direction. The support extension advantageously forms a support foot. It is possible for the container base to have several such support extensions. The support extension is preferably arranged radially inside the side wall. The side wall of the container preferably surrounds the container base. In particular, the support edge of the side wall of the container base surrounds the outside.

[0014] As described above, the container has two longitudinal ends. Preferably, the container comprises a central longitudinal axis around which the side wall extends. Particularly preferably, the side wall is formed such that the container has a cylindrical shape. Other shapes are possible.

[0015] The container is preferably a barrel or a container for holding and / or dispensing a viscous material, e.g., an adhesive or sealant. The container can be used as a storage container. Other filling materials are possible. The container interior can have a capacity of essentially 20 to 400 liters, in particular 100 to 300 liters, and particularly preferably 200 liters. It is possible for the container interior to have a capacity of greater than 400 liters or less than 20 liters.

[0016] The container is preferably made of metal, in particular sheet metal. Specifically, the side wall and / or the container base can be made of metal, in particular sheet metal. It is possible for the container to be at least partially made of plastic. The container base and the side wall are preferably separate components that are joined together, in particular by folding. Other joining methods are possible. Alternatively, the container base and the side wall can be manufactured from a single piece, for example, by a forming process, in particular by deep drawing.

[0017] Preferred embodiments of the invention are specified in the subclaims.

[0018] In a preferred embodiment, the support extension has an outer side, in particular an outer surface, facing away from the interior, which is essentially flush with the support edge. In other words, the support extension bridges the offset between the container base and the support edge of the side wall. When the container is in the upright position, the outer side of the support extension rests on the counter surface or counter contour, thus preventing the base from bulging or bending, in particular completely.

[0019] Particularly preferably, the support extension is formed integrally in the container base. In other words, the support extension is an integral component of the container base. Or, to put it another way, the support extension is preferably formed by a specific plastic deformation of the container base. This has the advantage that no separate component is required to create a supporting effect.

[0020] The support extension is preferably formed by at least one protrusion, in particular an embossing, of the container base. In other words, the container base is formed in such a way that it has a support extension formed as a protrusion. Specifically, the material, in particular sheet metal material, can be embossed in such a way that the support extension protrudes with a specific shape on the outer side of the container base facing away from the interior. The protrusion thus preferably forms a raised portion on the outer side of the container base facing away from the interior of the container. The advantage here is that the support extension can be manufactured easily and cost-effectively.

[0021] It is advantageous if the container base, especially its base plate, has a greater wall thickness than the side wall. This allows the container base to withstand increased forces.

[0022] In a preferred embodiment, the support extension is designed such that the interior of the container in the region of the support extension is at least partially expanded, in particular enlarged, in the direction facing away from the interior. In other words, the support extension forms an expansion of the container interior on its inner side. This means that the support extension has an internal volume on its inner side that is open to the interior of the container. This has the advantage that during a removal process, for example, a removal unit, in particular a scooping piston of a pump, can move up to the container base without coming into complete contact with it. The support extension thus creates additional space to prevent the removal unit from striking the base.

[0023] It is advantageous if the support extension has at least one inner side facing the interior, which inner side encompasses at least one recess in the container base. The recess is preferably trough-shaped. In other words, the recess preferably has a trough shape that is open toward the interior. The recess can at least partially accommodate a removal unit during removal operation.

[0024] It is advantageous if the support extension is formed centrally, with the support extension and the side wall preferably being coaxial. The support extension, and in particular the recess, can be formed concentrically. The support extension is thus preferably arranged centrally. This improves the force dissipation from the container base or the support of the container base, thus increasing the stability of the container base.

[0025] Particularly preferably, the support extension is rotationally symmetrical with respect to the central longitudinal axis of the container. The support extension can be truncated conically. It is also possible for the support extension to be substantially cylindrical. Furthermore, it is possible for the support extension to be point-shaped and preferably comprise star-shaped recesses.

[0026] The support extension preferably has at least one flank that transitions into a flat area of the container base, in particular at a shallow angle. This allows the interior of the container to be filled with the viscous material essentially bubble-free, i.e., free of air inclusions.

[0027] It is advantageous if an additional cross-shaped embossing is formed in the flank area of the support extension, especially in a conical area. This allows trapped air, for example, under an inliner, especially a film bag, into which the viscous material is filled, to escape completely. This is advantageous for inverted containers and for highly viscous products.

[0028] In this embodiment, the container base has a flat-surfaced area that completely surrounds the support extension. This flat-surfaced area can also be referred to as a flat area.

[0029] To enable filling the container with the viscous material and removal of the same material, the interior is preferably open to the outside at the second longitudinal end of the container. This allows a removal unit, in particular a scooping piston, to be immersed in the container interior. It is conceivable that the container is temporarily closed by a lid for transport or storage. In general, handling is simplified with this embodiment.

[0030] According to a secondary aspect, the invention relates to a device for conveying a viscous material, which device has at least one conveying pump with a removal unit, in particular a scooping piston, and at least one container of the type described above, wherein the removal unit is movable relative to the container bottom and, in a removal operation, moves into the interior of the container in the direction of the container bottom.

[0031] In a preferred embodiment of the device according to the invention, the support extension forms at least one recess in the container bottom facing the interior, which recess is arranged opposite the removal unit.

[0032] Regarding the advantages of the device, reference is made to those explained in connection with the container. Furthermore, the device may alternatively or additionally have individual or a combination of several features previously mentioned with regard to the container.

[0033] The invention will be explained in more detail below with reference to the accompanying drawings. The illustrated embodiment represents an example of how the container according to the invention can be designed.

[0034] In these show, Fig. 1a, 1b show a longitudinal section through a container according to a preferred embodiment of the invention; Fig. 2 shows a bottom view of a container from the prior art in which the container bottom is bulged; and Fig. 3 shows a detailed view of a container from the prior art with a separate support element.

[0035] The same reference numbers are used below for identical or equivalent parts.

[0036] Fig. 1a and 1b show a container 10 according to a preferred embodiment of the invention. The container 10 is preferably used as packaging for a viscous material, for example, an adhesive or a sealant. The viscous material is preferably filled into an inliner arranged on the inside of the container. The container 10 can alternatively serve as packaging for other, unmentioned materials.

[0037] As in Fig. 1a and 1bAs shown, the container 10 has an elongated shape. Specifically, the container 10 is designed as a barrel, in particular a container. The container 10 has a central longitudinal axis LA. Fig. 1a and 1b It can be seen that the container 10 is rotationally symmetrical with respect to the central longitudinal axis LA. Furthermore, the container 10 comprises two opposite and spaced-apart longitudinal ends 11, 12, between which a side wall 13 extends. Specifically, the two longitudinal ends 11, 12 are opposite each other in the longitudinal direction.

[0038] The side wall 13 is shaped such that the container 10 has a cylindrical outer shape. In other words, the side wall 13 completely surrounds the central longitudinal axis LA, forming a closed cylindrical shape. The container 10 has an interior space 14 for accommodating the viscous material. The interior space 14 is laterally delimited by the side wall 13. Specifically, the side wall 13 delimits the interior space 14 of the container 10 circumferentially, i.e., transversely to the central longitudinal axis LA.

[0039] As can be seen from the detailed view in Fig. 1b As can be seen, the side wall 13 has a support edge 15 at a first 11 of the longitudinal ends 11, 12. In addition, the container 10 comprises a container bottom 16, which completely closes off the interior 14 at the first longitudinal end 11. According to Fig. 1aThe container 10 is designed to be open at the second 12 of the two longitudinal ends 11, 12. However, it is possible that a lid (not shown) may at least temporarily close the second longitudinal end 12 for transport or storage of the container 10.

[0040] The container base 16 is offset from the support edge 15 of the side wall 13 toward the interior 14 of the container 10. This forms a web 25 surrounding the container base 16, which extends parallel to the central longitudinal axis LA on the one hand and surrounds the central longitudinal axis LA on the other. The web 25 forms an edge surrounding the container base 16. The web 25 comprises a connecting section in which the container base 16 and the side wall 13 are connected to one another. The connection between the container base 16 and the side wall 13 is preferably achieved by folding and / or flanging. Other connection types are possible.

[0041] The support edge 15 is part of the web 25, with the support edge 15 forming an end face of the web 25. The support edge 25 is oriented in the direction RA away from the interior space 14. The container 10 rests primarily on a counter surface via the support edge 15, for example, when filling the viscous material or during transport / storage of the container.

[0042] In the Fig. 1a and 1b It is clearly visible that the container base 16 has a support extension 17 extending in a direction RA away from the interior 14. The support extension 17 serves to support the container base 16 against the counter surface or counter contour to prevent bulging or bending of the base. The support extension 17 bridges the offset between the container base 16 and the support edge 15 of the side wall 13 in the longitudinal direction of the container 10.

[0043] The support extension 17 has an outer side 18 facing away from the interior 14 of the container 10, which is flush with the support edge 15. The outer side 18 comprises an outer surface 18a that is aligned with the support edge 15 of the side wall 13. In other words, the outer surface 18a of the support extension 17 and the support edge 15 of the side wall 13 lie in the same plane. The outer surface 18a is perpendicular to the central longitudinal axis LA. In other words, the outer surface 18a extends transversely to the longitudinal direction of the container 10.

[0044] In the detailed view according to Fig. 1b It is clearly visible that the support extension 17 is integrally formed in the container base 10. In other words, the support extension 17 is an integral part of the container base 16. Or, to put it another way, the support extension 17 is formed by a targeted plastic deformation of the container base 16.

[0045] The support extension 17 is specifically formed by a protrusion 19, in particular an embossing, of the container base 16. In other words, the container base 16 is deformed such that it has a support extension 17 formed as a protrusion 19. Specifically, the material of the container base 16 can be embossed such that the support extension 17 protrudes with a specific shape on an outer side 20 of the container base 16 facing away from the interior 14. The protrusion 19 thus forms an elevation, in particular a projection, on the outer side 20 of the container base 16 facing away from the interior 14 of the container 16. The support extension 17 can also be referred to as a support foot.

[0046] The container base 16 has a straight-surfaced region 24 that completely surrounds the support extension 17, particularly in the circumferential direction around the central longitudinal axis LA. The support extension 17 projects outward beyond this straight-surfaced region 14. The straight-surfaced region 24 forms a flat surface of the container base 16. The support extension 17 additionally has a flank 23 that merges into the straight-surfaced region 24 of the container base 16 at a shallow angle.

[0047] Also from Fig. 1a and 1bIt can be seen that the support extension 17 is formed centrally in the container base 16. The support extension 17 is thus arranged centrally in the container base 16. The support extension 17 and the side wall 13 are arranged coaxially. Both thus lie on the central longitudinal axis LA. The support extension 17 is formed concentrically. The support extension 17 is formed rotationally symmetrically with respect to the central longitudinal axis LA of the container 10. The support extension 17 is specifically formed in the shape of a truncated cone. Other shapes are possible. For example, the support extension 17 can be formed in a point-like manner and comprise star-shaped depressions.

[0048] The container bottom 16 and the side wall 13 are thin-walled. Preferably, the container bottom 16 and the side wall 13 are formed from a sheet metal material. Alternatively or additionally, at least the container bottom 16 or the side wall 13 can be formed from plastic.

[0049] The support extension 17 is further configured such that the interior 14 of the container 10 is at least partially expanded, in particular enlarged, in the region of the support extension 17 in the direction RA facing away from the interior 14. In other words, the support extension 17 forms an extension of the container interior 14 on its inner side 21. This means that the support extension 17 has an interior volume on its inner side 21 that is open to the interior 14 of the container 10.

[0050] Specifically, the support extension 17 comprises, on its inner side 21, a recess 22 in the container base 16. The recess 22 is trough-shaped. In other words, the recess 22 has a trough shape that is open toward the interior 14. The recess 22 can at least partially accommodate a withdrawal unit, in particular a scooping piston of a pump, during withdrawal operation.

[0051] The patent application discloses and claims a device comprising the container 10. The device serves to convey the viscous material from the container 10 and comprises a feed pump with a removal unit, in particular a scooping piston. The removal unit is movable relative to the container bottom 16. During removal operation, the removal unit moves toward the container bottom 16 into the interior 14 of the container 10. The recess 22 of the support extension 17 facing the interior 14 is arranged opposite the removal unit.

[0052] The Fig. 2 and 3 show examples of containers from the prior art that do not have a support extension, such as the container 10 according to Fig. 1a and 1b In Fig. 2 a container 10' with a bulged container bottom 16' is shown. Fig. 3 represents a container 10" whose container bottom 16" is supported by a support board 26 to prevent bulging.

[0053] In the container 10 according to the invention according to Fig. 1a and 1b The support extension 17 prevents the container base 16 from bulging. This ensures that the container base 16 remains dimensionally stable. This has a positive effect on the filling of the container 10, its transport and storage, as well as on the removal of the viscous material. List of reference symbols

[0054] 10, 10`, 10" Container 11First longitudinal end 12Second longitudinal end 13Side wall 14Interior of the container 15Supporting edge 16, 16`, 16"Container base 17Support extension 18Outer side of the support extension 18aOuter surface 19Shaping 20Outer side of the container base 21Inner side 22Recess 23Flank 24Straight-surfaced area 25Web 26Support board RA Direction away from the interior of the container LA Central longitudinal axis

Claims

1. A container (10) for receiving and / or dispensing a viscous material, having two opposite longitudinal ends (11, 12), comprising: - at least one side wall (13) extending between the two longitudinal ends (11, 12) and circumferentially defining an interior space (14) of the container (10), wherein the side wall (13) has at least one support edge (15) at a first (11) of the longitudinal ends (11, 12); and - a container base (16) closing off the interior space (14) at the first longitudinal end (11), wherein the container base (16) is arranged offset from the support edge (15) of the side wall (13) toward the interior space (14), characterized in that the container bottom (16) has at least one support extension (17) which, for supporting the container bottom (16), extends in a direction (R A ) extends.

2. Container (10) according to claim 1, characterized in thatthe support extension (17) has an outer side (18), in particular an outer surface (18a), facing away from the interior (14), which is substantially flush with the support edge (15).

3. Container (10) according to claim 1 or 2, characterized in that the support extension (17) is integrally formed in the container base (16).

4. Container (10) according to one of the preceding claims, characterized in that the support extension (17) is formed by at least one formation (19), in particular an embossing, of the container base (16).

5. Container (10) according to one of the preceding claims, characterized in that the support extension (17) is designed such that the interior (14) of the container (10) in the region of the support extension (17) in the direction (R A ) is at least partially extended, in particular enlarged.

6. Container (10) according to one of the preceding claims, characterized in thatthe support extension (17) has at least one inner side (21) facing the interior (14), which comprises at least one recess (22) of the container base (16).

7. Container (10) according to one of the preceding claims, characterized in that the support extension (17) is formed centrally, wherein the support extension (17) and the side wall (13) are preferably formed coaxially.

8. Container (10) according to one of the preceding claims, characterized in that the support extension (17) has at least one flank (23) which merges into a straight-surface region (24) of the container base (16), in particular with a flat angle.

9. Container (10) according to one of the preceding claims, characterized in that the interior space (14) at the second longitudinal end (12) of the container (10) is open to the outside.

10. Device for conveying a viscous material, which has at least one feed pump with a removal unit, in particular a scooping piston, and at least one container (10) according to one of claims 1 to 9, wherein the removal unit is movable relative to the container bottom (16) and, in a removal operation, moves in the direction of the container bottom (16) into the interior (14) of the container (10).

11. Device according to claim 10, characterized in that the support extension (17) forms at least one recess (22) of the container base (16) facing the interior (14) and arranged opposite the removal unit.

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