FOLDING ROLL FOR A SEALER

Description

[0001] The invention relates to a seaming roller for closing a container with a container lid. The invention further relates to a sealer with a seaming roller according to the invention.

[0002] When filling beverage cans or food cans, after being filled with the beverage or food, the cans pass through a can seamer, where the filled can bodies feed in via one feed path and can ends feed in via another feed path. The can seamer usually has several similar stations arranged in a carousel, in each of which a can is sealed with a can end. The can ends are guided onto the can bodies and held to the can body by a holding plate of a seaming head. This holding also serves to fix the cans and prevent them from breaking out of the circular path followed by the cans in the can seamer due to centrifugal force. In the can seamer, the can bodies and can ends are seamed at the edges by a seaming roller and thus sealed.As a rule, the can with the can lid is also rotated around its own axis of symmetry using the seaming head.

[0003] A generic can seamer is described in DE 749636 and DE 4234115 A1. The can seamer comprises a clamping device for holding a can to be sealed. In operation, the can to be sealed is inserted into the clamping device and secured by it in the axial and radial directions. Likewise, a can end is centered over the can opening of the can to be sealed. The can has a circumferential can flange in the area of the can opening, and the can end has a circumferential can end flange. To close the can opening with the can end, the can seamer additionally comprises two seaming rollers, each rotatable about an axis, which press the can flange and the can end flange together using a substantially radial force. The pressing takes place by continuous rolling in the circumferential direction along the circumference of the can opening.

[0004] Another can seamer is known from GB 2098899 A. The can seamer comprises a clamping device for holding the can to be sealed and a seaming roller. In operation, the can to be sealed is inserted into the clamping device and secured by it in the axial and radial directions. Likewise, a can end is centered over the can opening of the can to be sealed. In the area of the can opening of the can body, the can has a circumferential can flange and the can end has a circumferential can end flange. To close the can opening with the can end, the can seamer comprises seaming rollers, each rotatable about an axis, which press the can flange and the can end flange together. The pressing takes place by continuous rolling in the circumferential direction along the circumference of the can opening.

[0005] To explain this locking module, the following refers to the Fig. 1 Reference is made to the above-described prior art, which will be described in more detail. To distinguish the prior art from the present invention, the reference numerals that refer to features of known examples of the folding roller are provided with an apostrophe, while features of embodiments according to the invention are provided with reference numerals that do not have an apostrophe.

[0006] Fig. 1 shows a sectional view of a known can seamer 1000' with a can 200' to be sealed and a can lid 202'.

[0007] According to Fig. 1 The known closing module 1000' comprises a clamping device comprising a can support 22' and a seaming head 20', and a seaming roller 10' rotatably mounted about the bolt 11' with a seaming roller profile. The can end 202' is arranged centered above the opening of the can body 201'. The can body 201' has a circumferential can flange in the area of the can opening, and the can end 202' has a circumferential can flange.

[0008] During the closing process, the seaming roller 1' is brought into contact with the can flange and the can end flange via the seaming roller profile. The can flange and the can end flange are pressed together by means of a substantially radial force via the seaming roller 1'. The pressing is achieved by continuously rolling the seaming roller 1' in the circumferential direction along the circumference of the can opening. By seaming the can body 201' with the can end 202', a double seam is preferably created.

[0009] The seaming roller 1' disclosed in GB 2098899 A for closing a can 200' consists of the bolt 11' and a rotatable rotary body 10', which is attached to the can 200' with the seaming profile. The rotary body 10' is cylindrical and has a first, round base side and a second, round base side opposite the first round base side. Inside the seaming roller 1' there is a bearing for receiving the bolt 11', whereby the bolt 11' is mounted in the bearing via the first base side. The rotary body 10' can thus rotate around the bolt 11' in the circumferential direction of the second base side when closing the can 200'. In this case, the seaming profile is usually brought into contact with the can end 202' and the can 200' then rotates along its can axis X'.

[0010] A major disadvantage of the folding rollers known from the state of the art is that changing the folding rollers is both expensive and very time-consuming.

[0011] Durable seaming rollers are made from high-performance materials to enable them to close large quantities of cans in a short time and to ensure the can seamer operates reliably, especially during continuous operation. Because the entire rotating body must be made from sophisticated materials, the seaming rollers are very expensive, or can be manufactured from many materials due to their dimensions. If the seaming roller is worn out, or if a different combination of can and can end is to be closed, the seaming roller must be replaced. To do this, the seaming roller and bolt must be replaced in order to install a new, unused seaming roller, or the seaming roller tool must be changed. However, not only does the seaming roller have to be removed and installed, but the entire can seamer must also be laboriously readjusted after the seaming roller is replaced.This is not only time-consuming, but also always requires a specialist to correctly adjust the machine after the change.

[0012] GB 2 267 667 A discloses a folding roller whose folding profile is formed by a first and second plate. The first plate is attached to the rotating body via a screw. JP H03 95138 A discloses a folding roller whose folding profile is attached to the rotating body by an element that is attached to the rotating body via a thread. US 2 748 733 A discloses a folding roller that is attached to a hollow shaft via a locking plate, but the entire folding roller is attached to one shaft.

[0013] The object of the invention is therefore to provide a folding roller for a seamer that avoids the adverse effects known from the prior art. In particular, a folding roller and a seamer are to be provided that significantly reduce both the costs for the folding rollers and downtimes due to tool changes.

[0014] The object is achieved by a folding roller according to the invention for closing a container, as well as a closer comprising the folding roller according to the invention.

[0015] According to the invention, a seaming roller for closing a container is proposed, comprising a rotating body rotatable on a pin. The rotating body has a first base side and a second base side different from the first base side, as well as a bearing. The pin is arranged on the first base side, in particular in the bearing, in such a way that the rotating body can be rotated around the pin in the circumferential direction of the second base side when closing the container.

[0016] In contrast to the prior art, the seaming roller comprises a replaceable seaming profile for seaming a container lid to the container body, as well as a fastening mechanism. The replaceable seaming profile is detachably connected to the rotating body via the fastening mechanism.

[0017] This results in the following advantages. On the one hand, the amount of high-performance materials used for the seaming roller is much lower, since only the seaming profile needs to be made from it. On the other hand, the seaming profile can be replaced much more quickly due to wear or when a tool change is necessary. Since the seaming profile is detachably connected to the rotating body, it can be easily replaced without further adjustment of the closer. When replacing, it is therefore not necessary to replace the entire seaming roller and bolt, but only the seaming profile, which can be changed quickly and easily by removing it from the rotating body after loosening the fastening mechanism. This means that no adjustment of the bolt and bearing on the seaming roller and closer is necessary.

[0018] The container preferably consists of the container lid / container closure and the body, with the body being closed with the container lid / container closure. The container can be a container, and in particular, the container can be a can with a can lid and a can body. The closer is then a can seamer.

[0019] To close the can / container, the rotating body, in operation, is brought into contact with a can end flange / lid flange of the can end / container lid with its seaming profile. By rotating the can / container, the seaming roller is then rotated in the circumferential direction of the can / container and in the circumferential direction of the second base side, seaming the can flange / flange with the can end flange / lid flange.

[0020] In the context of the present application, "second base side different from the first base side" does not only mean that the second base side is a separate base side from the first base side. In practice, the second base side can be opposite the first base side (i.e., opposite sides of a three-dimensional body) and, in particular, can also be parallel to each other.

[0021] In the context of the invention, a can can be understood as a rotationally symmetrical container that is sealed by means of the can seamer and the associated seaming roller. A can can preferably comprise a metal, in particular aluminum.

[0022] The fact that the replaceable folding profile is detachably connected to the rotating body via the fastening mechanism can be understood within the scope of the invention in such a way that the folding profile is fixed to the rotating body via the fastening mechanism for the operating state and for folding the cans / containers and can be removed from the rotating body by loosening the fastening mechanism when changing it.

[0023] The fastening mechanism comprises a pin on the rotating body and a notch on the rebate profile. When fastening the rebate profile, the notch of the rebate profile is guided onto the pin of the rotating body in order to connect and fix the rebate profile to the notch on the pin of the rotating body in a rotationally fixed and force-locking manner. In particular, the pin and the corresponding notch can be designed as a bayonet lock, so that after the pin is inserted into the notch, the rebate profile is force-locked to the rotating body, for example by rotation. For this purpose, the notch could be designed as a curve or an angle. Of course, the rotating body could also comprise a corresponding notch and the rebate profile a corresponding pin. Particularly preferably, the rebate profile is fastened to the rotating body from the second base side.

[0024] In In one embodiment of the invention, the rotating body can comprise a cover for sealing the bearing. The cover is removably mounted on the second base side of the rotating body and closes the bearing, which is preferably located inside the rotating body. Thus, the cover prevents lubricants from escaping from the bearing.

[0025] In a particularly preferred embodiment, the lid can comprise the pin of the fastening mechanism. The lid is rotatably mounted on the second base side of the rotating body. When attaching the folding profile, the folding profile is placed onto the rotating body with the notch in a first lid position over the pin of the lid. The lid is then rotated from the first lid position to a second lid position, with the pin being moved into or over the notch, so that the folding profile is connected to the rotating body in a rotationally fixed and force-locking manner. Here, too, a bayonet locking mechanism is preferably provided.

[0026] The lid can be designed in various ways within the scope of the invention. In principle, the lid is a plate, preferably designed as a plate with at least one corner. A corner does not have to be angled, but can also be curved or oval-curved.

[0027] In particular, the cover can alternatively have a shape corresponding to the second base side of the rotating body. The cover can also be designed as a polygon, i.e. a polygon-shaped cover, in particular a polygon-shaped plate. In this case, the cover can have a symmetrical or asymmetrical polygon shape. At least one corner of the polygon is then designed as a pin of the fastening mechanism, which is used to fix the folding profile with the notch. As also described above, when attaching the folding profile, the folding profile with the notch is pushed over the cover onto the rotating body in a first cover position. The folding profile in particular has a shape corresponding to the polygon-shaped cover, so that the folding profile can be guided over the cover as precisely as possible.The lid is then rotated from the first lid position to a second lid position, with the corner (or corners) of the polygon moving as a tenon over the notch, so that the rebate profile is connected to the rotating body in a rotationally fixed and force-locking manner. Of course, the lid could also have notches, and the rebate profile could have the corresponding tenons.

[0028] In principle, the lid can be a polygon of any shape, as long as there is at least one corner, preferably two corners, that act as a peg. The lid could also be designed as an ellipsoid. As mentioned above, the corner does not have to have an angle, but can also be curved or oval-curved.

[0029] This design, in which the seaming profile is attached to the rotating body via the lid, has an additional advantage. The lid does not need to be removed from the rotating body and therefore not from the bearing to install the seaming profile. This keeps the bearing sealed, preventing lubricants from escaping from the bearing, which is of utmost importance for sealing cans filled with food or beverages.

[0030] To explain the above fastening mechanism in more detail, it will be briefly explained below using a square as an example. However, the fastening mechanism works equally well for other polygons or plate-shaped covers with at least one tenon. The cover is therefore designed as a square plate and attached to the second base side of the rotating body. The rebate profile has a corresponding square shape. When attaching the rebate profile, the rebate profile is slipped over the cover on the second base side onto the rotating body. Consequently, the notches and tenons lie one above the other. By rotating the cover, the corners of the cover are rotated onto the edges of the rebate profile, thus fixing the rebate profile.

[0031] In practice, the fastening mechanism can additionally comprise a thread arranged on the rotating body and a counter-thread arranged on the cover, with the rebate profile being attached to the rotating body via the cover as described above. In this case, the rebate profile is fixed by a thread rotation when the thread is tightened between the cover and the rotating body.

[0032] In another important embodiment, the seaming roller according to the invention comprises a locking mechanism, wherein the locking mechanism is arranged between the rotating body and the lid, such that the rotation of the lid is limited, in particular limited to the rotation from the first lid position to the second lid position. The locking mechanism can be designed as a locking pin which is arranged in a recess in the thread of the lid. The recess has a recess extension in the rotation direction of the thread, i.e. in the circumferential direction of the second base side, such that the rotation of the lid is limited to the recess extension. This prevents the lid from being completely detached from the rotating body and thus from the bearing, in order to prevent the leakage of lubricants and thus contamination of the beverages and food in the can.To completely remove the cover, the pin must first be removed from the device. Alternatively, the locking mechanism can also be equipped with a color marking device, for example, in the form of a paint-capsule pin, so that the opening of the bearing can be traced. Particularly preferably, a seal can also be arranged between the cover and the rotating body to prevent any lubricant from escaping.

[0033] In a particularly advantageous embodiment of the invention, as an alternative to the measures described above, the fastening mechanism can comprise a thread arranged on the rotating body and a counter-thread arranged on the rebate profile, so that the rebate profile can be screwed onto the rotating body. In this case, the thread of the rotating body is preferably arranged on the second base side.

[0034] In practice, the first base side and / or the second base side of the rotating body can have a round shape. In this case, the rotating body can also be designed as a cylindrical rotating body.

[0035] In the case of a cylindrical rotating body, the folding profile is preferably designed as a folding profile ring. The bearing of the folding roller can be a ball bearing or a cylindrical roller bearing, as is already known in the art.

[0036] According to the invention, a closer comprising the inventive seaming roller for closing the container, comprising the rotating body rotatable on the bolt, is further proposed. The rotating body has a first base side and a second base side different from the first base side, as well as a bearing. The bolt is arranged on the bearing via the first base side in such a way that the rotating body can be rotated around the bolt in the circumferential direction of the second base side when closing the container. The seaming roller comprises an exchangeable seaming profile for seaming a container lid with a body of the container, and a fastening mechanism. The exchangeable seaming profile is detachably connected to the rotating body via the fastening mechanism.

[0037] In principle, the seamer according to the invention can be analogous to the can seamers already known from the prior art, but differs in the seaming roller. This offers the advantage that known can seamers / seamers with the old seaming rollers can be modified with the seaming rollers according to the invention, thus avoiding the disadvantages of the prior art.

[0038] In practice, the can seamer, as described in the prior art, comprises the clamping device with which the container is fixed in the axial and radial direction for closing and with which the container can be rotated in the circumferential direction for seaming the container flange (body flange) and the lid flange.

[0039] In principle, the seamer can also comprise at least two seaming rollers according to the invention, preferably with different seam profiles, so that containers / cans can be sealed according to a double seam principle, in which the containers / cans are generally sealed in two stages. Each seaming roller is responsible for each stage. The first seaming roller creates a pre-seam, while the second seaming roller completely seals the can / container.

[0040] In the following, the invention and the prior art are explained in more detail using exemplary embodiments with reference to the drawings. Fig. 1 is a schematic representation of the prior art; Fig. 2 is a schematic representation of a folding roller according to the invention; Fig. 3 is a schematic representation of a view of a second base side of a folding roller according to the invention; Fig. 4 is a schematic representation of a further embodiment of a folding roller according to the invention in cross section; Fig. 5 is a schematic representation of the folding roller according to the invention from Fig. 4 as a partial section; Fig. 6 shows a schematic representation of another seaming roller according to the invention in cross section. Fig. 7 shows a schematic representation of a can seamer according to the invention.

[0041] Figur 1 shows a schematic representation of the prior art, which has already been described above. As already mentioned above, the reference numerals of the Fig. 1 an apostrophe, as these refer to the known state of the art.

[0042] Fig. 2 shows a schematic representation of a folding roller according to the invention, which is designated below by the reference number 1.

[0043] According to Fig.2 The seaming roller 1 comprises a cylindrical rotary body 10 rotatable on a pin 11 for closing a can (not shown here), wherein the cylindrical rotary body 10 comprises a first round base side 111 and a round second base side 101 different from the first base side 111, as well as a bearing (not shown here). The pin is arranged in the bearing via the first base side 111, so that the rotary body 10 can rotate around the pin 11 in the circumferential direction of the second base side 101 during the operating state when closing the can.

[0044] The folding roller 1 has a replaceable folding profile 12, which is shown separately, i.e., not fixed to the rotating body. According to the invention, the folding roller 1 comprises a fastening mechanism, wherein the replaceable folding profile 12 is detachably connected to the rotating body 10 via the fastening mechanism. The folding profile 12 can be plugged onto the rotating body 10 from the second base side 101 and is then connected to the rotating body 10 in a rotationally fixed and force-locking manner by means of the fastening mechanism.

[0045] In the present embodiment, the seaming profile 12 is designed as a seaming profile ring 12. To seam a can end with a can body, the seaming roller 10 is brought into contact with the can end flange via the seaming profile 12. The can flange and the can end flange are pressed together by means of a substantially radially acting force via the seaming roller 10. The pressing takes place by continuously rolling the seaming roller 10 in the circumferential direction along the circumference of an opening of the can.

[0046] Fig. 3 shows a schematic representation of a view of the second base side 101 of the folding roller 1 according to the invention.

[0047] According to Fig. 3 the folding roller 1 comprises a cover 13 for sealing the bearing, wherein the cover 13 is removably arranged on the second base side 101 of the rotating body 10.

[0048] In the execution according to Fig. 3 the fastening mechanism 15, 16 comprises a pin 15 on the cover 13 of the rotating body 10 and a notch 16 on the rebate profile ring 12.

[0049] The cover 13 is designed as a polygon, i.e., as a polygon-shaped plate 13. Corners 15 of the polygon serve as pins 15 for the fastening mechanism 15, 16, which is used to fix the rebate profile ring 12 with the notch 16. The notches 16 of the rebate profile ring 12 correspond to the pins 15 of the cover 13 and are located on an inner circumference of the rebate profile ring 12.

[0050] When attaching the rebate profile ring 12, the rebate profile ring 12 is placed over the lid 13 onto the rotating body 10 with the notch 16 in a first lid position. The rebate profile ring 12 has a shape corresponding to the polygonal lid 13, so that the rebate profile ring 12 fits as precisely as possible over the lid 13. After attaching the rebate profile ring 12 to the rotating body 10, the lid 13 is rotated from a first lid position to a second lid position, with the corner (or corners) of the polygon being moved away from the notches 16 as a pin 15, so that the rebate profile ring 12 is connected to the rotating body 10 in a rotationally fixed and force-locking manner. The fastening mechanism 15, 16 is designed as a bayonet lock.

[0051] The bayonet lock functions in such a way that the cover 13 is designed as a polygon 13 and is attached to the second base side 101 of the rotating body 10, whereby the bearing is sealed by the cover 13. In principle, by rotating the cover 13, the corners 15 of the cover 13 are rotated from the notches 16 of the rebate profile ring 12 to the edges (between two notches 16) of the rebate profile ring 12, whereby the rebate profile ring 12 is fixed to the rotating body 10, since a force exerted by the cover 13 acts on the rebate profile ring 12 in the direction of the rotating body 10, clamping the rebate profile ring.

[0052] Particularly preferably, the fastening mechanism 15, 16 can additionally comprise a thread arranged in the rotating body 10 and a corresponding counter-thread arranged on the cover 13, so that the cover 13 can be screwed onto the second base side 101 of the rotating body 10 and wherein the rotation for fixing the folded profile ring 12 takes place via the thread / counter-thread.

[0053] Fig. 4 shows a schematic representation of a further embodiment of the folding roller 1 according to the invention in cross section.

[0054] According to Fig. 4 the rotating body 10 comprises the bearing 14 in the interior, wherein the bolt 11 is arranged in the bearing 14 via the first base side 111.

[0055] In addition, a sealing ring 18 is arranged between the cover 13 and the rotating body 10, which closes and seals the bearing 14 to prevent leakage of lubricants.

[0056] The sealing ring 18 is preferably an elastic element which is pressed together with the cover 13 when the bearing 14 is closed.

[0057] Fig. 5 shows a schematic representation of the folding roller 10 according to the invention of Fig. 4 as a partial excerpt.

[0058] Fig. 6 shows a schematic representation of a further embodiment of the folding roller 1 according to the invention in cross section.

[0059] According to Fig. 6 comprises the folding roller 1 with the sealing ring 18 between the cover 13 and the rotating body 10. The folding roller 10 also comprises a securing mechanism 17, wherein the securing mechanism 17 is also arranged between the rotating body 10 and the cover 13, so that the rotation of the cover 13 is limited, in particular is limited to a rotation from the first cover position to the second cover position.

[0060] The securing mechanism 17 is designed as a securing pin 17, which is arranged in a recess 19 of the lid 13. The recess 19 has a recess extension in the rotation direction of the lid 13 or in the circumferential direction of the second base side, so that the rotation of the lid 13 is limited to the recess extension. This prevents the lid 13 from being completely detached from the rotating body 10 and thus from the bearing (not shown here), in order to prevent the escape of lubricants and thus contamination of the cans. To completely remove the lid 13, the securing pin 17 must therefore first be removed. Suitable openings for inserting the securing pin 17 can be provided in the rotating body 10 and also in the seam profile 12.

[0061] Fig. 7 shows a schematic representation of a can closer 1000 according to the invention, in which a can 200 to be closed with a can lid 202 and a can body 201 is arranged.

[0062] According to Fig. 7 The can seamer 1000 according to the invention comprises a clamping device 20, 22, which includes a can support 22 and a seaming head 20, and the seaming roller 10, which is rotatably mounted about the bolt 11 and has the replaceable seaming roller profile 12. The can end 202 is arranged centered above the opening of the can 200. The can body 201 has a circumferential can flange in the area of the can opening, and the can end 202 has a circumferential can end flange. In the operating state of the can seamer 1000, the can 200 is rotated about its axis of symmetry X by the clamping device 20, 22.

[0063] During the closing process, the seaming roller 1 is brought into contact with the can end flange via the seaming roller profile 12. The can flange and the can end flange are pressed together by a substantially radial force via the seaming roller 1. The pressing takes place by continuously rolling the seaming roller 1 in the circumferential direction along the circumference of the can opening.

[0064] The inventive seaming roller 1 for closing the can 200 comprises the bolt 11 and the rotating body 10, which is attached to the can 200 with the seaming profile 12. The rotating body 10 is cylindrical, and the lid 13, which is arranged on the second base side of the rotating body 10, fixes the replaceable seaming profile 12 to the rotating body 10 with the fastening mechanism 15.

Claims

1. A seaming roll for sealing a container (200) comprising a rotation body (10) rotatable on a bolt (11) for sealing the container (200), wherein the rotation body (10) comprises a first basic side (111) and a second basic side (101) different from the first basic side (111) as well as a bearing (14), wherein the bolt (11) is arranged on the bearing (14) via the first basic side (111) in such a way that the rotation body (10) can be rotated about the bolt (11) in the circumferential direction of the second basic side (101) when the container is sealed, wherein the seaming roll (1) comprises an exchangeable seaming profile (12) for seaming a container lid (202) with a body (201) of the container (200) and a fastening mechanism (15, 16), wherein the exchangeable seaming profile (12) is detachably connected to the rotation body (10) via the fastening mechanism (15, 16), characterized in that the fastening mechanism (15, 16) comprises a pin (15) on the rotation body (10) and a notch (16) on the seaming profile (12), and the seaming profile (12) with the notch (16) can be connected to the pin (15) on the rotation body (10) in a torque-proof and force-locking manner.

2. A seaming roll according to claim 1, wherein the rotation body (10) comprises a cover (13) for sealing the bearing (14) and the cover (13) is detachably arranged on the second basic side (101) of the rotation body (10), wherein the cover (13) comprises the pin (15) and the cover (13) is rotatably arranged on the second basic side (101) of the rotation body (10) in such a way that the seaming profile (12) can be placed with the notch (16) over the cover (13) onto the rotation body (10) in a first cover position and, after rotation of the cover (13) from the first cover position to a second cover position, is connected to the rotation body (10) in a torque-proof and force-locking manner.

3. A seaming roll according to claim 3, wherein the cover (13) is a polygon, in particular a symmetrical or asymmetrical polygon, and one corner of the polygon is designed as a pin (15) of the fastening mechanism (15, 16).

4. A seaming roll according to anyone of the claims 2 to 3, wherein the fastening mechanism (15, 16) comprises a thread arranged on the rotation body (10) and a counter thread arranged on the cover (13), wherein the seaming profile (12) is fastened to the rotation body (10) over the cover (13).

5. A seaming roll according to anyone of the claims 2 to 4 comprising a safety mechanism (17), wherein the safety mechanism (17) is arranged between the rotation body (10) and the cover (13) so that the rotation of the cover (13) is delimited.

6. A seaming roll according to claim 1, wherein the fastening mechanism (15, 16) comprises a thread arranged on the rotation body (10) and a counter thread arranged on the seaming profile (12).

7. A seaming roll according to claim 5, wherein the safety mechanism (17) is a safety pin (17).

8. A seaming roll according to anyone of the preceding claims, wherein the first basic side (111) and / or the second basic side (101) are round.

9. A seaming roll according to anyone of the preceding claims, wherein the rotation body (10) is a cylindrical rotation body (10) and the seaming profile (12) is a seaming profile ring (12).

10. A seaming roll according to anyone of the preceding claims, wherein the bearing (13) is a ball bearing or a cylindrical roller bearing.

11. A seaming roll according to anyone of the claims 2 to 5, wherein a seal (18) is arranged between the cover (13) and the rotation body (10), so that a leakage of lubricants from the bearing (14) is prevented.

12. A sealer comprising a seaming roll (1) according to anyone of the preceding claims.

13. A sealer according to claim 12 comprising a clamping device (20, 22).

14. A sealer according to anyone of the claims 12 to 13 comprising at least two seaming rolls (1) according to anyone of the claims 1 to 11.