System for Manufacturing Sausage-Shaped Products With Consumable Containers of Different Types

Abstract

A system for manufacturing sausage-shaped products, like sausages, the system comprising a clipping machine and at least a clip reel of a first type and at least a clip reel of a second type, or only at least a clip reel of the second type, each of which is configured to receive a plurality of closure means, like clips, wound thereon. The clip reel of the first type has a hub with a longitudinal center axis and an inner surface provided with first coupling means being arranged at least approximately in the center of the clip reel relative to the longitudinal center axis. The clip reel of the second type has a hub with a longitudinal center axis and an inner surface provided with second coupling means being arranged at least in the vicinity of the center of the clip reel relative to the longitudinal center axis. The clipping machine has at least one reel holding means configured to hold at least one clip reel of the first or the second type and comprises at least one shaft for receiving a clip reel of the first or second type. Furthermore, the clipping machine comprises at least one abutment means against which the clip reel of the first or second type mounted on the shaft abuts in one axial direction of the shaft, and at least one counter-coupling means cooperating with the first or second coupling means of the clip reel of the first or second type for reversibly fixing the clip reel on the shaft in the other axial direction of the shaft.

Claims

1. A system for manufacturing sausage-shaped products, like sausages, the system comprising a clipping machine and at least a clip reel of a first type and at least a clip reel of a second type, or only at least a clip reel of the second type, each of which is configured to receive a plurality of closure means, like clips, wound thereon, wherein the clip reel of the first type has a hub with a longitudinal center axis and an inner surface provided with first coupling means being arranged at least approximately in the center of the clip reel relative to the longitudinal center axis; wherein the clip reel of the second type has a hub with a longitudinal center axis and an inner surface provided with second coupling means being arranged at least in the vicinity of the center of the clip reel relative to the longitudinal center axis; wherein the clipping machine has at least one reel holding means configured to hold at least one clip reel of the first or the second type and comprising: at least one shaft for receiving a clip reel of the first or second type, at least one abutment means against which the clip reel of the first or second type mounted on the shaft abuts in one axial direction of the shaft, and at least one counter-coupling means cooperating with the first or second coupling means of the clip reel of the first or second type for reversibly fixing the clip reel on the shaft in the other axial direction of the shaft.

2. The system of claim 1, wherein a distance between the abutment means and the counter-coupling means of the reel holding means is at least approximately equal to a distance on the clip reel of the first or second type between a front end of the clip reel of the first or second type and the first or second coupling means of the clip reel of the first or second type, such that a clip reel mounted on the shaft of the reel holding means cannot move in the axial direction of the shaft during operation.

3. The system according to claim 1, wherein the coupling means of a clip reel of the first or second type comprises at least one rib at least approximately extending in circumferential direction for interaction with the counter-coupling means of the reel holding means.

4. The system (100) according to claim 1, wherein the counter-coupling means of the shaft comprises biasing means, such that the counter-coupling means retract into the shaft when force is exerted onto the counter-coupling means and return out of the shaft when no force is exerted onto the counter-coupling means.

5. The system according to claim 1, wherein the counter-coupling means comprise multiple holder noses, preferably arranged circumferentially.

6. The system according to claim 1, wherein the reel holding means comprises two shafts, each shaft for receiving a clip reel of the first or second type, wherein preferably the two shafts are arranged at least substantially opposite to each other.

7. The system according to claim 1, wherein the clip reels of the first and second type comprise radially extending outer walls defining a space for the closure means, and wherein one outer wall abuts against the abutment means of the reel holding means.

8. A clip reel for holding closure means to be used for manufacturing sausage-shaped products, like sausages, comprising a hub having an inner surface and a longitudinal center axis, and wherein the inner surface of the hub comprises coupling means, wherein the coupling means are adapted to lock the clip reel onto a shaft of reel holding means of a clipping machine in conjunction with counter-coupling means of the shaft by having the counter-coupling means of the shaft couple with the coupling means of the clip reel.

9. The clip reel according to claim 8, wherein the clip reel consists of two halves, which are preferably symmetrical to a plane extending at least substantially perpendicular to the longitudinal center axis of the hub, the halves being preferably releasably connectable to each other to form the clip reel, wherein at least one latch hook is further preferably used for connecting the halves.

10. The clip reel according to claim 8, wherein the coupling means of the clip reel comprises two to an extent circumferentially disposed ribs.

11. The clip reel according to claim 8, wherein the coupling means of the clip reel comprises at least one groove, being preferably approximately centered circumferentially.

12. The clip reel according to claim 8, wherein the interaction of the counter-coupling means with the coupling means of the clip reel comprises projection of the counter-coupling means into a free space defined by the coupling means of the clip reel.

13. The clip reel according to claim 8, wherein the hub comprises outer walls extending radially from the outer surface of the hub to hold closure means between the outer surface of the hub and the outer walls.

14. The clip reel according to claim 9, wherein the clip reel comprises at least one space for an item.

15. The clip reel according to claim 14, wherein the at least one space comprises at least a dielectric which covers the item.

16. A system for manufacturing sausage-shaped products, like sausages, the system comprising a clipping machine and at least a clip reel of a first type and at least a clip reel of a third type, or only at least a clip reel of the third type, each of which is configured to receive a plurality of closure means, like clips, wound thereon, wherein the clip reel of the first type has a hub with a longitudinal center axis and an inner surface provided with first coupling means being arranged in the center of the clip reel relative to the longitudinal center axis; wherein the clip reel of the third type has a hub with a longitudinal center axis and an inner surface provided with third coupling means, wherein the third coupling means divide the clip reel of the third type into a first axial section and a second axial section, wherein an axial length of the first axial section is shorter than an axial length of the second axial section; wherein the clipping machine has at least one reel holding means configured to hold at least one clip reel of the first or the third type and comprising: at least one shaft for receiving a clip reel of the first or third type, at least one abutment means, against which the clip reel of the first or third type mounted on the shaft abuts in an axial direction of the shaft, and at least one counter-coupling means cooperating with the first or third coupling means of the clip reel of the first or third type for reversibly fixing the clip reel on the shaft in the other axial direction of the shaft, wherein the clip reel of the first type can be fixed to the reel holding means in two longitudinal orientations and wherein the third coupling means of the clip reel of the third type can only engage the counter-coupling means when the first axial section of the clip reel of the third type is oriented towards the abutment means of the reel holding means.

17. The system according to claim 16, wherein the clip reel of the third type comprises exactly one third coupling means.

18. The system according to claim 16, wherein the clip reel of the third type is symmetrical to a center plane perpendicular to its center axis except for the third counter coupling means.

19. The system according to claim 16, wherein the clip reel of the third type comprises a marker identifying the first axial section or the second axial section, wherein the marker preferably is a color marker that is preferably provided on an outer wall of the clip reel of the third type extending from the hub.

20. A clip reel for holding closure means to be used for manufacturing sausage-shaped products, like sausages, comprising a hub having an inner surface and a longitudinal center axis, and wherein the inner surface of the hub comprises coupling means, wherein the coupling means divide the clip reel into a first axial section and a second axial section, wherein an axial length of the first axial section is shorter than an axial length of the second axial section; wherein the coupling means are adapted to lock the clip reel onto a shaft of reel holding means of a clipping machine in conjunction with counter-coupling means of the shaft by having the counter-coupling means of the shaft couple with the coupling means of the clip reel when the first axial section is oriented away from a free end of the shaft.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0083] FIG. 1 is an isometric view of a system according to the invention comprising a clipping machine with a reel holding means for holding clip reels of a first and/or second type.

[0084] FIG. 2A is an isometric view of a clip reel of a first type.

[0085] FIG. 2B is a side view of the clip reel according to FIG. 2A.

[0086] FIG. 2C is a cross-sectional view of the clip reel according to FIG. 2A along line B-B in FIG. 2B.

[0087] FIG. 3A is an isometric view of a clip reel of a second type.

[0088] FIG. 3B is a side view of the clip reel according to FIG. 3A.

[0089] FIG. 3C is a cross-sectional view of the clip reel according to FIG. 3A along line C-C in FIG. 3B.

[0090] FIG. 3D is an enlarged view of latch hooks shown in FIG. 3C.

[0091] FIG. 3E is an isometric view of a reel half of a clip reel of the second type.

[0092] FIG. 3F is a side view of a reel half according to a further embodiment of a clip reel of a second type.

[0093] FIG. 4 is an isometric view of the reel holding means shown in FIG. 1.

[0094] FIG. 5A is a cross-sectional view of the reel holding means shown in FIG. 4 and the clip reel of the first type shown in FIGS. 2A to 2C.

[0095] FIG. 5B is a cross-sectional view of the reel holding means shown in FIG. 4 and a clip reel of the second type shown in FIGS. 3A to 3F.

[0096] FIG. 6 a cross-sectional top view of the reel holding means with a clip reel of the first type and a clip reel of the second type.

[0097] FIG. 7 a cross-sectional view of a clip reel of a third type similar to the cross-sectional view of FIG. 3C.

DETAILED DESCRIPTION OF THE FIGURES

[0098] Components of a system 100 for manufacturing sausage-shaped products, like sausages, according to the invention are, inter alia, shown in FIGS. 1 to 3F. System 100 comprises a clipping machine CM shown in FIG. 1, and at least a clip reel 200 of a first type depicted in FIGS. 2A to 2C and/or clip reels 300 of a second type shown in FIGS. 3A to 3F.

[0099] Clip reels 200; 300 of the first and second type are used to receive a strand or line of closure means, like closure clips, wherein the strand or line is formed by a series of contiguous clips for closing sausage-shaped products by clipping machine CM. The clips can be S-clips or R-clips.

[0100] As will be explained in more detail below, clip reel 200 of the first type differs from clip reel 300 of the second type in, among other things, the width d, measured in the axial direction of clip reels 200; 300, while having at least approximately the same diameter of the reel walls and the reel hub. As can particularly be seen in FIG. 6, the width d of clip reel 200 of the first type is smaller than the width D of clip reel 300 of the second type, so that more clips can be wound on clip reel 300 of the second type than on clip reel 200 of the first type while, as already mentioned, the diameter of the reel side walls and the reel hub are at least approximately the same for both reels 200; 300.

[0101] As shown in FIG. 1, clipping machine CM is an automatic sealing/clipping machine that includes a sealing unit SU and a clipping unit CU. In sealing unit SU, a continuous tubular casing is formed in a known manner from a film material wound on a supply roll provided in sealing unit SU (not shown), by drawing the film material off the supply roll, passing it over a forming shoulder FS and thus forming it into a tubular casing (also not shown). By means of a heat-sealing device HS of sealing unit SU, the two adjacent or overlapping longitudinal side edges of the film material formed in a tube are welded together.

[0102] Filling material is filled into the tubular casing thus formed, wherein the filling material is fed in a feeding direction FD to the tubular casing via a filling tube FT extending substantially horizontally and below as well as beyond heat-sealing device HS. Via filling tube FT, clipping machine CM is connected to a filling machine arranged upstream of clipping machine CM, but not shown in FIG. 1.

[0103] Further referring to FIG. 1, clipping unit CU of clipping machine CM is arranged downstream of sealing unit SU. By means of clipping unit CU, the downstream end of a tubular casing formed in sealing unit SU and stored temporarily on filling tube FT downstream of sealing unit SU (not shown), is closed with a closure means like a clip, so that the filling material entering the tubular casing from filling tube FT along feeding direction FD pulls-off the tubular casing from filling tube FT and a sausage-shaped product is formed. The filling material can be sausage meat, glue or any other type of flowable material suitable for being filled in tubular casings.

[0104] As soon as a desired length and/or filling volume has reached in the tubular casing just filled, the filling process is briefly interrupted, a filling material-free plait-like portion is formed in the filled tubular casing and closed by means of at least one closure clip. The sausage-shaped product thus formed is then separated from the remaining casing material stored temporarily on filling tube FT, and the separated sausage-shaped product is discharged via a transportation means TM, like a conveyor belt, from clipping machine CM.

[0105] As further shown in FIG. 1, clipping machine CM, designed in known manner, comprises, among other things, reel holding means RH disposed on the top of clipping unit CU. As can also be seen from FIG. 1, reel holding means RH are arranged outside the housing surrounding clipping unit CU, so that it can be reached by an operator without having to open clipping machine CM or the housing surrounding clipping unit CU and/or sealing unit SU.

[0106] FIGS. 2A to 2C show clip reel 200 of the first type, whereas FIGS. 3A to 3F show different embodiments of clip reels 300 of the second type. Each clip reel 200; 300 comprises a tubular hub 210; 310 having a respective longitudinal center axis CA1; CA2. Each hub 210; 310 is at least approximately cylindrically shaped and hollow inside so as to be detachably mounted and rotatably held on reel supporting means of reel holding means RH explained in further detail below. The dimensions of the outer and inner diameter of hub 210 are at least approximately the same as the dimensions of the outer and inner diameter of hub 310.

[0107] Each clip reel 200; 300 has two disk-shaped outer walls 220a, 220b; 320a, 320b extending at least approximately perpendicular to longitudinal center axes CA1; CA2 at both front ends of hubs 210; 310. The dimensions of the outer and inner diameter of disk-shaped outer walls 220a, 220b; 320a, 320b is at least approximately the same.

[0108] The space between disk-shaped outer walls 220a, 220b; 320a, 320b and the outer circumferential surface of hubs 210; 310 of both reel types is used as storage for closure clips (not shown).

[0109] Additionally, disk-shaped outer walls 220a, 220b; 320a, 320b may comprise at least one hole 224; 324, preferably multiple holes, in each outer wall 220a, 220b; 320a, 320b. Having at least one hole 224; 324 in each of disk-shaped outer walls 220a, 220b; 320a, 320b gives the advantage of allowing to check the amount of clips on clip reel 200; 300 from all sides. It is therefore possible to easily confirm the amount of clips left on clip reel 200; 300. Furthermore, it reduces the weight of clip reel 200; 300.

[0110] Clip reel 300 of the second type can consist of two similar halves 302a, 302b, whereas different embodiments of a single half 302b are depicted in FIGS. 3E and 3F. Halves 302a, 302b are then combined to a clip reel 300. Halves 302a, 302b can, for example, be moulded or 3D printed. A mechanism for combining both clip reel halves 302a, 302b is shown in more detail in FIG. 3D.

[0111] As mentioned earlier, one major difference between clip reels 200 of the first type and clip reels 300 of the second type is that a distance d; D between disk-shaped outer walls 220a, 220b; 320a, 320b, i.e. the width of clip reel 200; 300 measured parallel to the respective longitudinal center axes CA1; CA2 of clip reel 200; 300 is different. As can be seen from a comparison of FIGS. 2C and 3C or FIGS. 5A and 5B, distance D of clip reel 300 of the second type is greater than distance d of clip reel 200 of the first type.

[0112] A further difference between a clip reel 200 of the first type and a clip reel 300 of the second type is that, clip reels 200 of the first type comprise first coupling means 240, whereas clip reels 300 of the second type comprise second coupling means 340a, 340b. These first and second coupling means 240; 340a, 340b are arranged on respective inner surfaces 212; 312 of hubs 210; 310.

[0113] First coupling means 240 of a clip reel 200 of the first type comprise a rib, which is preferably at least approximately arranged in the center of hub 210 measured along longitudinal center axis CA1. Second coupling means 340a, 340b of clip reels 300 of the second type comprise two ribs, which are preferably at least approximately arranged preferably in the vicinity of the center of hub 310 measured along longitudinal center axis CA2. Ribs 340a, 340b may be arranged equidistant to the center of hub 310.

[0114] Thus, these first or second coupling means 240; 340a, 340b differ according to the type of clip reel 200; 300first or second typein terms of type, number and positioning on inner circumferential or peripheral surfaces 212; 312 of hubs 210; 310 of clip reels 200; 300.

[0115] First or second coupling means 240; 340a, 340b cooperate with releasable counter-coupling means of reel holding means RH for releasably holding clip reels 200; 300 on axles of reel holding means RH, as will be further explained below.

[0116] Rib 240 of clip reel 200 of the first type disposed on inner circumferential surface 212 of hub 210 at least substantially completely surrounds inner circumferential surface 212 of hub 210 at least approximately perpendicular to longitudinal center axis CA1. Rib 240 is arranged at least approximately in the center with respect to the width direction of hub 210 extending parallel to the longitudinal center axis CA1.

[0117] As can be seen from FIG. 2C, rib 240 has a rectangular cross-sectional shape, but may have any other cross-sectional shape having a contour protruding from inner peripheral surface 212 of hub 210. Rib 240 may have a width in the range of 1 to 15 mm, preferably in the range of 2 to 6 mm, and a height in the range of 0.3 to 3 mm, preferably in the range of 2 to 2.9 mm.

[0118] Referring now to FIGS. 3A to 3F, clip reel 300 of the second type comprises second coupling means formed by two ribs 340a, 340b, which are spaced apart from each other in the width direction of hub 310, measured parallel to center longitudinal axis CA2, thereby defining a groove 342 at least approximately at the center of hub 310.

[0119] Ribs 340a, 340b extend substantially completely along the inner circumferential surface 312 of clip reel 300 of the second type and at least approximately perpendicular to center longitudinal axis CA2. Ribs 340a, 340b are arranged symmetrical with respect to the center of hub 310, relative to the width direction of hub 310 running parallel to center longitudinal axis CA2, in such a way that each rib 340a, 340b has an equal distance to the center of hub 310 as well as to the outer axial front ends of hub 310.

[0120] The distance between each rib 340a, 340b to the center of hub 310 is, inter alia, depending on the width of hub 310 and a locking distance, which is the distance between abutment means and counter-coupling means of reel holding means RH explained in further detail below.

[0121] Ribs 340a, 340b can be designed similar to rib 240 or can have a different design. In particular, they can have a height in the range of 0.3 to 3 mm, preferably in the range of 2 to 2.9 mm and a width in the range of 1 to 15 mm, preferably in the range of 2 to 6 mm.

[0122] Groove 342 can have a width in the range of 16 to 30 mm, preferably in the range of 21 to 23 mm.

[0123] As can be seen from FIG. 3C, both ribs 340a, 340b also have a rectangular cross-section with the same cross-sectional area size relative to each other. However, the cross-sectional area of both ribs 340a, 340b may be smaller than the cross-sectional area size of rib 240 of clip reel 200 of the first type.

[0124] FIG. 3B is a side view of clip reel 300 of the second type according to the invention. As depicted, only one disk-shaped outer wall 320b is visible, while the other disk-shaped outer wall 320b is hidden behind. Similarly, only one rib 340a is visible. FIG. 3B shows that ribs 340a, 340b do not need to extend completely in the circumferential direction. However, while they can be interrupted by a gap, it is also possible that they comprise no gap or a plurality of gaps.

[0125] Furthermore, holes 324 in disk-shaped outer walls 320a, 320b are also depicted arranged at equal angle offsets, while other offsets are also possible.

[0126] FIG. 3C is a cross-sectional view of clip reel 300 of the second type depicted in FIG. 3B along line C-C. In this cross-sectional view, disk-shaped outer wall 320b is depicted on the right side.

[0127] Clip reel 300 of the second type is combined of two clip reel halves 302a, 302b, where one half 302b is shown in FIGS. 3E and 3F. Furthermore, as shown in FIG. 3C, ribs 340a, 340b as well as groove 342 are depicted in the centre. Ribs 340a, 340b are located centered with the same offset to the center of groove 342. They are extending at least approximately perpendicular to longitudinal center axis CA2 of inner hub 310.

[0128] An enlarged view of a detail indicated by a circle depicted in FIG. 3C is shown in FIG. 3D.

[0129] Clip reel 300 of the second type can comprise at least one latch hook 350 to connect both halves 302a, 302b of clip reel 300 of the second type. Latch hooks 350 are generally disposed circumferentially adjacent hub 310 of clip reel 300 of the second type. To combine both halves 302a, 302b, they are pressed together until latch hooks 350 latch in on all locations. To latch, other half 302a, 302b comprises a latch groove or hole, where latch hooks 350 can extend into.

[0130] Furthermore, clip reel 300 can be made from a single piece or multiple pieces.

[0131] FIG. 3E depicts a first half 302a of a clip reel 300 of the second type. First half 302a of clip reel 300 of the second type can be combined with a corresponding second half 302b (not shown) to a clip reel 300 of the second type.

[0132] FIG. 3F is a front view of a clip reel half 302b with hub 310, longitudinal center axis CA2 and disk-shaped outer wall 320b of a further embodiment of a clip reel 300 of the second type. Clip reel half 302b further comprises a space 316 for an item being arranged radially outside of hub 310.

[0133] Space 316 between the outer surface of hub 310 and the second circumferential wall may be filled with the dielectric. The dielectric can cover or surround the item. The item can be for example transponders, RFID-tags, data storage or other items. The dielectric protects the item in space 316 against disruptive effects on signal transmission that may be caused by reel holding means RH or closure means arranged on second circumferential wall.

[0134] The width of space 316 can be in the range of 3 to 30 mm, preferably in the range of 8 to 14 mm.

[0135] Space 316 can be arranged with a radial offset from inner hub 310 or with no offset to inner hub 310. The radial offset be in the range of 1 to 10 mm, preferably in the range of 2 to 4 mm.

[0136] Space 316 can be arranged sandwiched on hub 310 between an outer surface of hub 310 and a second circumferential wall further radially outside of outer surface of hub 310 in a double wall manner.

[0137] Furthermore, as space 316 is enclosed by two walls, space 316 is protected from physical damage and/or manipulation.

[0138] As being depicted in FIGS. 3A to 3F, while holes 324 can be of different sizes and shapes, they can also be of the same size and shape. Further, holes 324 can be evenly or unevenly arranged.

[0139] FIG. 4 depicts reel holding means RH for holding clip reels 200; 300 of the first and/or second type. Reel holding means RH comprises at least one shaft 410 having a center axis CA3, a middle portion 420 and a post or bracket 430. In FIG. 4, two shafts 410 with a two center axes CA3, CA4 are shown.

[0140] Each shaft 410 is rotatable about an axle 414 with center axes CA3, CA4, such that clip reel 200; 300 (not shown) can rotate with shaft 410 about axle 414 and center axis CA3, CA4. However, clip reel 200; 300 can also rotate relative to shaft 410.

[0141] Shaft 410 comprises abutment means 416 for restraining clip reels' 200; 300 axial movement in the direction towards to tilted side surfaces 420a, 420b and/or for stabilization of clip reel 200; 300.

[0142] Furthermore, each shaft 410 comprises an end cap 460 (only one end cap 460 is shown in FIG. 4). End cap 460 can comprise a grooved surface for better gripping. In general, end cap 460 is used to tighten shaft 410 onto middle portion 420 via a torque mechanism by rotating end cap 460 in opposite or equal direction. End cap 460 can be used to set the rotation resistance of each respective shaft 410. End cap 460 can be tightened by rotation, therefore increasing or decreasing the rotation resistance of respective shaft 410.

[0143] Middle portion 420 can comprise two tilted side surfaces 420a, 420b which extend at least approximately perpendicular to respective center axes CA3, CA4 (cf. FIGS. 4 to 6) such that center axes CA3, CA4 of attached shafts 410 are tilted to each other in an obtuse angle which can be in the range of 163 to 180, preferably in the range of 165 to 172 more preferably in the range of 169 to 171.

[0144] Middle portion 420 can be made of any suitable material, such as metal, plastics or carbon.

[0145] Center axes CA3 and CA4 can also be parallel, such that side surfaces 420a, 420b are not tilted but parallel with respect to each other.

[0146] Post 430 is used to attach reel holding means RH to clipping machine CM. For this manner, post 430 is fixed to middle portion 420 via a bolt 436 or other attachment means, as depicted in FIGS. 5A and 5B. Post 430 comprises a bore 434 for interlocking with middle portion 420 and is inserted into the radial surface of middle portion 420 and fixated with for example a pin 438. Pin 438 is inserted into another bore on the axial surface of middle portion 420 and extends into the corresponding bore of post 430. Furthermore, post 430 can comprise a notch 432 located on the side that is facing away from middle portion 420.

[0147] To securely mount clip reel 200; 300 onto reel holding means RH, reel holding means RH further comprises several counter-coupling means 440, such as at least one, preferably several radially extending holder noses 440, located at the outer surface 412 of shaft 410.

[0148] Referring to FIGS. 4 and 5A, holder nose 440 is arranged substantially perpendicular to center axis CA3 of shaft 410 at outer surface 412 of shaft 410. Holder nose 440 projects radially outwardly from the outer radial surface of shaft 410. As depicted in FIG. 5A, holder nose 440 comprises a cylindrically-shaped body with at least one rounded tip 442, preferably in a cone-like or frustoconical shape. However, other shapes are also possible. The length of holder nose 440 may be in the range of 1 to 5 mm, preferably in the range of 2.5 to 3.5 mm.

[0149] Holder nose 440 is oriented such that the rounded tip extends radially away from the outer surface 412 of shaft 410. For interaction with clip reel 200; 300 holder nose 440 releasably locks clip reel 200; 300 in place by abutting against first or second coupling means 240; 340a, 340b of a clip reel 200 of the first type or a clip reel 300 of the second type and the abutment means.

[0150] The elasticity of clip reel 200; 300 and/or sliding movement of clip reel 200; 300 over the rounded tip of holder nose 440 can push clip reel 200; 300 in place.

[0151] Holder nose 440 can also comprise biasing means, such as springs or spring bearings, in order to retract holder nose 440 into shaft 410 when clip reel 200; 300 is moved parallel to the outer surface 412 of shaft 410 and center axis CA3. Holder nose 440 is then pushed radially inwards by first or second coupling means 240; 340a, 340b of clip reel 200; 300. Reversibly, when removing clip reel 200; 300, holder nose 440 can retract due to biasing means or the elasticity of clip reel 200; 300 and the clip reel 200; 300 can be removed.

[0152] Ribs 340a, 340b of the clip reel 300 of second type or rib 240 of the clip reel 200 of the first type are used for interlocking with counter-coupling means 440 of reel holding means RH.

[0153] By interlocking counter-coupling means 440 with ribs 340a, 340b or rib 240 or groove 342, clip reel 200; 300 of the first or second type is restricted from moving in axial direction and can only rotate in circumferential direction. Clip reel 200; 300 of the first or second type is able to rotate both clockwise and counter-clockwise.

[0154] Additionally, as ribs 340a, 340b are located with the same distance to the centre of hub 310, clip reel 300 of the second type can be approximately symmetric and can therefore be mounted on reel holding means RH in both orientations, that means with clip reel 300 of the second type rotated 180 around the radial axis.

[0155] Clip reel 200 of the first type preferably has a rib located in the centre and can therefore be also approximately symmetric. However, if clip reel 200 of the first type comprises a groove instead of a rib, the groove can be also be displaced from the center of the hub.

[0156] Further referring to FIGS. 4 to 6, reel holding means RH are capable of holding different types of clip reels 200; 300. Apart from a matching diameter of hubs 210; 310 of clip reels 200; 300, the aspect of reel holding means RH being capable of mounting different types of clip reels 200; 300 and stabilize them in the axial direction is the locking distance.

[0157] The distance between abutment means 416 and counter-coupling means 440 is defined as so-called locking distance. For a clip reel 200; 300 to be compatible with reel holding means RH, clip reel 200; 300 must have first or second coupling means 240; 340a, 340b approximately at a distance from the outer edge of hub 210; 310 that is equal to the locking distance. The locking distance can be in the range of 20 to 50 mm, preferably in the range of 28 to 33 mm, even more preferably in the range of 30 to 31 mm.

[0158] Clip reel 200 of the first type has first coupling means 240 generally be located in the center of hub 210. Thus, the overall width of clip reel 200 of the first type is defined by two times the locking distance and the width of first coupling means 240.

[0159] Clip reel 300 of the second type has second coupling means 340a, 340b generally be located adjacent the center of hub 310. That is such that the distance between an outer edge of hub 310 and an edge of second coupling means 340a, 340b is equal to the locking distance. For example, the width of clip reel 300 of second type is then defined by two times the locking distance plus an additional width.

[0160] Clip reel 300 of the second type may be held in place by having holder noses 440 slide into groove 342 defined by ribs 340a, 340b. Holder noses 440 then abut against one of each rib 340a, 340b or both ribs 340a, 340b.

[0161] Alternatively, second coupling means 340a, 340b can also consist of groove 342 without comprising two ribs 340a, 340b. Holder noses 440 extend then into groove 342 and abut against both axial oriented edges defined by groove 342. Clip reel 300 of the second type is then axially locked.

[0162] Ribs 340a, 340b are disposed on two planes at least approximately perpendicular to longitudinal axis CA2 in hub 310 of clip reel 300 of the second type adjacent the center of hub 310. This allows to mount clip reel 300 of the second type in two orientations.

[0163] FIG. 5A and 5B depict cross-sectional views of a reel holding means RH with a middle portion 420 with a respective clip reel 200; 300 of the first or the second type being releasably attached onto reel holding means RH. FIG. 5A shows a clip reel 200 of a first type comprising a rim wherein FIG. 5B depicts the same reel holding means RH as shown in FIG. 5A, with the difference that clip reel 300 of the second type is mounted instead of clip reel 200 of the first type.

[0164] As can be inferred from FIG. 5B, width D of clip reel 300 of the second type is larger than width d of clip reel 200 of the first type, thus offering more space between the outer disk-shaped walls 320a, 320b for loading a larger amount of closure means.

[0165] Another difference of clip reel 300 of the second type with respect to clip reel 200 of the first type is that the disk-shaped outer wall 320a, which is positioned closer to middle portion 420, is positioned over abutment means 416 of reel holding means RH. Therefore, the available space defined by rim width D is further increased.

[0166] FIG. 6 depicts a cross-sectional view of reel holding means RH from above as described earlier having middle portion 420, two shafts 410 with counter-coupling means 440 and end caps 460. Furthermore, shafts 410 are holding clip reels 200; 300 of both first and second type. Clip reel 200 of the first type is held on shaft 410 on the left side, while larger clip reel 300 of the second type is held on shaft 410 on the right side.

[0167] Axles 414 being oriented parallel with center axes CA3, CA4 are arranged with an obtuse angle to each other and being perpendicular to respective tilted side surfaces 420a, 420b of middle portion 420. Thus, clip reels 200; 300 are also oriented with an obtuse angle to each other.

[0168] As can be further derived from FIG. 6, clip reel 300 of the second type is protruding beyond the outer axial end of shaft 410. Further should be noted that in FIG. 6, clip reel 300 of the second type can also comprise only one rib 340a being decentral as second coupling means instead of two ribs 340a, 340b.

[0169] FIG. 7 shows a cross-sectional view of a clip reel 500 of a third type. A side view and isometric view of clip reel 500 of the third type could be substantially identical to the views of clip reel 300 of the second type provided in FIGS. 3A and 3B respectively with the exception of the location of third coupling means 540 on clip reel 500 of the third type. Clip reel 500 of the third type comprises a hub 510 with a longitudinal center axis CA5. Similar to clip reel 300 of the second type, third coupling means 540 of clip reel 500 of the third type are provided on an inner surface 512 of hub 510. A clipping machine CM of a system 100 for manufacturing sausage-shaped products comprising clip reel 500 of the third type could be formed similar or identical to clipping machine CM shown in FIG. 1. Such a system 100 can further comprise a clip reel 200 of the first type and/or of a clip reel 300 of the second type.

[0170] In the embodiment shown in FIG. 7, clip reel 500 of the third type comprises exactly one third counter coupling means 540. Third coupling means 540 is here formed by a rib 541 extending from an inner surface 512 of a hub 540 toward center axis CA5 of clip reel 500 of the third type. However, third counter coupling means 540 could also be formed by a groove or in any other suitable manner.

[0171] A main body 550 of clip reel 500 of the third type is symmetrical to a center plane or symmetry plane P perpendicular to center axis CA5. Tthird counter coupling means 540 are provided on inner surface 512 at a location spaced apart from symmetry plane P along center axis CA5. Therefore, clip reel 500 of the third type is symmetrical to center plane P except for third counter coupling means 540.

[0172] Third counter coupling means 540 divides clip reel 500 of the first type into a first axial section 561 and a second axial section 562. First and second axial sections 561, 562 extend along center axis CA5 of clip reel 500 of the third type. First axial section 561 has a first axial length L1 along center axis CA5 and second axial section 562 has a corresponding second axial length L2 along center axis CA5.

[0173] First axial length L1 of first axial section 561 is measured between a first axial end surface 571 of clip reel 500 of the third type and third coupling means 540. In the embodiment of clip reel 500 of the third type shown in FIG. 7, first axial end surface 571 is an outer surface of a first outer wall 521 of clip reel 500. Second axial length L2 of second axial section 562 is measured between a second axial end surface 572 of clip reel 500 of the third type and third coupling means 540. Similar to first axial end surface 571, second axial end surface 572 of clip reel 500 of the third type is formed by an outer wall 522 of clip reel 500.

[0174] First axial length L1 of first axial section 561 is shorter than second axial length L2 of second axial section 562. Clip reel 500 of the third type may be mounted on shaft 410 in two possible orientations. However, engagement of third coupling means 540 with counter-coupling means 440 of reel holding means RH is only possible in one axial orientation of clip reel 500 of the third type.

[0175] In the embodiment of FIG. 7, third coupling means 540 of clip reel 500 of the third type can engage counter-coupling means 440 of reel holding means RH if first axial section 561 is oriented towards abutment means 416, in particular when first outer wall 521 abuts abutment means 461. First axial length L1 preferably substantially equals a locking distance measured along axle center axis CA3 or CA4 between abutment means 416 and counter-coupling means 440.

[0176] Clip reel 500 of the third type may comprise a marker 580. In the embodiment of FIG. 7, marker 580 is formed by or part of first outer wall 521 having, for example, another color than second outer wall 522 of the reel 500 of the third type.

REFERENCE SIGNS

[0177] CA1 longitudinal center axis of a clip reel of a first type [0178] CA2 longitudinal center axis of a clip reel of a second type [0179] CA3 center axis of axle [0180] CA4 center axis of axle [0181] CU clipping unit [0182] CM clipping machine [0183] FD feeding direction [0184] FS forming shoulder [0185] FT filling tube [0186] HS heat-sealing device [0187] L1 first axial length [0188] L2 second axial length [0189] P symmetry plane/center plane [0190] RH reel holding means [0191] SU sealing unit [0192] TM transportation means [0193] 100 system [0194] 200 clip reel of a first type [0195] 210 hub [0196] 212 inner surface of hub [0197] 220a disk-shaped outer wall [0198] 220b disk-shaped outer wall [0199] 224 hole [0200] 240 rib [0201] 300 clip reel of a second type [0202] 302a first half of clip reel of a second type [0203] 302b second half of clip reel of a second type [0204] 310 hub [0205] 312 inner surface of hub [0206] 316 space [0207] 320a disk-shaped outer wall [0208] 320b disk-shaped outer wall [0209] 324 hole [0210] 340a rib [0211] 340b rib [0212] 342 groove [0213] 350 latch hook [0214] 410 shaft [0215] 412 outer surface of shaft [0216] 414 axle [0217] 416 abutment means [0218] 420 middle portion [0219] 420a tilted side surface [0220] 420b tilted side surface [0221] 430 post [0222] 432 notch [0223] 434 bore [0224] 436 bolt [0225] 438 pin [0226] 440 holder nose [0227] 442 rounded tip [0228] 460 end caps [0229] 500 clip reel of the third type [0230] 510 hub of the clip reel of the third type [0231] 512 inner surface clip reel of the third type [0232] 521 first outer wall clip reel of the third type [0233] 522 second outer wall clip reel of the third type [0234] 540 third coupling means [0235] 541 rib forming the third coupling means [0236] 550 main body of the clip reel of the third type [0237] 561 first axial section clip reel of the third type [0238] 562 second axial section clip reel of the third type [0239] 571 first axial end surface clip reel of the third type [0240] 572 second axial end surface clip reel of the third type [0241] 580 marker