Package forming device for packaging machines and packaging machine for forming packages filled with fluid products

Abstract

A package forming apparatus (10, 10', 10") is described, comprising an actuation device (25) having a first actuation group (26) and a second actuation group (27). The actuation device (25) has at least one support group (30), and the first actuation group (26) and the second actuation group (27) are movably connected to the support group (30). The support group (30) has a linear guide system (31). The first actuation group (26) and / or the second actuation group (27) are linearly movably connected to the linear guide system (31), thereby the actuation device (25) is controllable between a rest configuration and an actuation configuration by linearly moving the first actuation group (26) and / or the second actuation group (27).

Description

Technical Field

[0001] The present invention relates to a package forming device for a packaging machine for forming packages filled with fluid products, particularly fluid foods.

[0002] Advantageously, the present invention relates to a packaging machine for forming packages filled with fluid products, particularly fluid foods.

Background Art

[0003] As is well known, many liquid or fluid foods, such as fruit juice, UHT (ultra-high temperature treated) milk, wine, tomato sauce, etc., are sold in packages made from sterilized packaging materials.

[0004] As a typical example, a parallelepiped package for liquid or fluid foods known as Tetra Brik Aseptic (registered trademark) can be mentioned, which is formed by sealing and folding a laminated strip-shaped packaging material. This packaging material has a multilayer structure covered with layers of heat-sealable plastic materials, such as polyethylene, on both sides of a base material layer, such as paper. In the case of aseptic packaging for long-term preservation products such as UHT milk, the packaging material includes a layer of oxygen barrier material (oxygen barrier layer), for example, an aluminum foil, and this layer is overlapped with a layer of heat-sealable plastic material and finally covered with a further layer of heat-sealable plastic material that defines the inner surface of the package that contacts the food.

[0005] This type of package is usually manufactured by a fully automatic packaging machine, which maintains a sterilized packaging material web through a sterilization device for sterilizing the packaging material web in a sterilization station and advances it into an isolation chamber (a closed aseptic environment). While the packaging material web advances through the isolation chamber, the packaging material web is folded and sealed longitudinally at a tube forming station to form a tube having a longitudinal seam portion, and the tube is further supplied along the vertical forward direction.

[0006] To complete the forming process, the tubes are filled with a fluid product, particularly a fluid food, and are sealed along equally spaced transverse sections as they are transported vertically within the packaging forming device of a packaging machine, and then cut.

[0007] In this way, a pillow package is obtained, which has a longitudinal sealing band, a transverse sealing band at the top, and a transverse sealing band at the bottom.

[0008] A typical packaging machine includes a web conveying device that conveys a web of packaging material along a web forward path and forms a tube from the web, which is then conveyed along a tube forward path; a sterilizing device that sterilizes the web of packaging material before it is formed into a tube; a tube forming and sealing device that is at least partially located in an isolation chamber and forms a tube from the conveyed web of packaging material and seals the tube longitudinally; a filling device that fills the tube with a fluid product; and a package forming device that forms individual packages from the packaging material of the tube, seals them laterally, and cuts them.

[0009] The package forming apparatus comprises at least one actuation device, the actuation device comprising at least a first actuation group and a second actuation group configured to at least partially form, laterally seal, and cut a forward tube during use.

[0010] Furthermore, the actuation device includes a support group that is movably connected to the first and second guides and moves periodically up and down along the first and second guides during use, thereby inducing movement in the first actuation group and the second actuation group.

[0011] Furthermore, the first and second actuation groups each include a support, a connecting bar extending laterally from the support, and an actuation unit connected to the connecting bar and configured to interact with the tube. The support is angularly movable about a rotation axis, and moves the actuation unit between a first end position where it is separated from the tube and a second end position where it is in contact with the tube and operated. [Overview of the project] [Problems that the invention aims to solve]

[0012] Despite the fact that known package forming apparatuses and / or packaging machines function adequately, there is a desire in this field to further improve known package forming apparatuses and / or packaging machines.

[0013] Therefore, an object of the present invention is to provide an improved package forming apparatus.

[0014] Furthermore, an object of the present invention is to provide an improved packaging machine. [Means for solving the problem]

[0015] According to the present invention, a package forming apparatus as described in claim 1 is provided.

[0016] Preferred non-limiting embodiments of the package forming apparatus are described in the claims directly and indirectly dependent on claim 1.

[0017] According to the present invention, the packaging machine described in claim 16 is provided. [Brief explanation of the drawing]

[0018] Non-limiting embodiments of the present invention will be described illustratively with reference to the accompanying drawings.

[0019] [Figure 1] This is a schematic diagram of a packaging machine according to the first embodiment of the present invention, with parts removed for clarity. [Figure 2] It is a schematic perspective view showing a detailed part of the package forming apparatus of FIG. 1, with parts removed for clarity. [Figure 3] It is a perspective view showing a detailed part of the package forming apparatus of FIG. 1, with parts removed for clarity. [Figure 4] It is a perspective view showing a detailed part of the package forming apparatus of FIG. 1, with parts removed for clarity. [Figure 5] It is a perspective view of an enlarged part of the package forming apparatus of FIG. 1 from a different perspective, with parts removed for clarity. [Figure 6] It is a perspective view of an enlarged part of the package forming apparatus of FIG. 1 from a different perspective, with parts removed for clarity. [Figure 7] It is a view with a further part removed from the perspective view of FIG. 6. [Figure 8] It is a further perspective view showing another detailed part of the package forming apparatus of FIG. 1, with parts removed for clarity. [Figure 9] It is a further perspective view showing another detailed part of the package forming apparatus of FIG. 1, with parts removed for clarity. [Figure 10] It is a further perspective view showing another detailed part of the package forming apparatus of FIG. 1, with parts removed for clarity. [Figure 11] It is a further perspective view showing another detailed part of the package forming apparatus of FIG. 1, with parts removed for clarity. [Figure 12a] It is a side view showing further details of the package forming apparatus of FIG. 1, with parts removed for clarity. [Figure 12b] It is a side view showing further details of the package forming apparatus of FIG. 1, with parts removed for clarity. [Figure 13] It is a perspective view showing details of the package forming apparatus according to the second embodiment of the present invention, with parts removed for clarity. [Figure 14]This is a perspective view showing details of a package forming apparatus according to a second embodiment of the present invention, with parts removed for clarity. [Figure 15] This is a perspective view showing details of a package forming apparatus according to a second embodiment of the present invention, with parts removed for clarity. [Figure 16] This is a perspective view showing details of a package forming apparatus according to a second embodiment of the present invention, with parts removed for clarity. [Figure 17] This is a perspective view showing details of a package forming apparatus according to a third embodiment of the present invention, with parts removed for clarity. [Figure 18] This is a perspective view showing details of a package forming apparatus according to a third embodiment of the present invention, with parts removed for clarity. [Figure 19] This is a perspective view showing details of a package forming apparatus according to a third embodiment of the present invention, with parts removed for clarity. [Modes for carrying out the invention]

[0020] Number 1 shows an entire packaging machine that manufactures sealed packages 2 for fluid products, especially fluid food products, such as milk, milk beverages, yogurt, yogurt drinks, fruit juices, wine, tomato sauce, emulsions, pulp-containing beverages, salt, and sugar.

[0021] More specifically, the packaging machine 1 may be configured to produce a package 2 from a multilayer packaging material. Preferably, a multilayer packaging material having heat-sealing properties (i.e., multiple layers of the multilayer packaging material can seal each other) is used.

[0022] More specifically, the multilayer packaging material may comprise at least one fibrous material layer, such as paper or cardboard, and at least two heat-sealable plastic material layers (e.g., polyethylene) sandwiching the fibrous material layer. Preferably, one of these two heat-sealable plastic material layers defines the inner surface of the package 2 that comes into contact with the fluid product.

[0023] Furthermore, the multilayer packaging material may include a gas and light blocking material layer, such as aluminum foil or ethylene vinyl alcohol (EVOH) film, preferably placed between a heat-sealable plastic material layer and a fiber material layer.

[0024] Preferably, the packaging material may include a further layer of heat-sealable plastic material sandwiched between a gas and light-blocking material layer and a fiber material layer.

[0025] More specifically, the multilayer packaging material may be provided in the form of a web 3.

[0026] Furthermore, the packaging machine 1 may be configured to form a tube 4 from a web 3, seal the tube 4 longitudinally, fill the tube 4 with a fluid product, seal it laterally, and preferably cut it laterally to produce a package 2.

[0027] Preferably, the tube 4 may extend along the central axis A.

[0028] In some possible non-limiting embodiments, package 2 may extend along the longitudinal axis A.

[0029] In some possible embodiments, the package 2 may have at least a first transverse seal band 5, and preferably a second transverse seal band located at the opposite end of the package 2.

[0030] Preferably, the first transverse seal band 5 can be substantially spaced apart from the second transverse seal band along the longitudinal axis B.

[0031] Preferably, the first lateral sealing band 5 defines the upper lateral sealing band, and the second lateral sealing band defines the lower lateral sealing band.

[0032] Furthermore, package 2 may include longitudinal sealing bands 6. Preferably, the first transverse sealing band 5 and / or the second transverse sealing band may be lateral, preferably perpendicular, to the longitudinal sealing band 6.

[0033] In Figure 1, the packaging machine 1 may include a package forming device 10 for manipulating the tube 4, preferably sealing it laterally and / or cutting it laterally and / or forming it at least partially to obtain a package 2.

[0034] Preferably, the package forming apparatus 10 may include a forward space through which the tube 4 moves forward during use.

[0035] Furthermore, the packaging machine 1, - A web transport device 11 configured to advance the web 3 along the web advancement path P, preferably to the tube formation station, to form the web 3 into a tube 4 when in use, and to advance the tube 4 along the tube advancement path Q; - A tube forming and sealing device 12 configured to form a tube 4 from a web 3 during use and to seal the tube 4 in the longitudinal direction; and - A filling device 13 for filling tube 4 with a fluid product; It may be provided.

[0036] More specifically, the packaging machine 1 may further include an isolation chamber 14 that separates the internal environment 15 from the external environment 16. Preferably, the internal environment 15 may be a sterile environment containing controlled air.

[0037] Preferably, the tube forming and sealing device 12 may be located at least partially within the isolation chamber 14, particularly within the internal environment 15, and may be configured to bend the tube 4 within the isolation chamber 14, particularly within the internal environment 15, and to seal it along its longitudinal direction.

[0038] Furthermore, the packaging machine 1 may be equipped with a sterilization unit for sterilizing the web 3 in use, preferably the sterilization unit is located upstream of the tube forming and sealing device 12 along the web's forward path P.

[0039] More specifically, the conveying device 11 is configured to advance the tube 4 and intermediates of the tube 4 along the tube advance path Q, preferably from the tube forming and sealing device 12 to the package forming device 10 and / or within a portion of the package forming device 10. Preferably, the expression “intermediate of the tube 4” means any configuration of the web 3 before obtaining the tube structure and after the folding of the web 3 by the tube forming and sealing device 12 has begun. That is, the intermediate of the tube 4 is obtained as a result of stepwise folding of the web 3 to obtain the tube 4, preferably by overlapping the (longitudinal) ends of the web 3 with each other.

[0040] In some possible non-limiting embodiments, the tube forming and sealing device 12 may be arranged such that the tube 4 may have a vertical orientation.

[0041] More specifically, the tube forming and sealing device 12 comprises at least two forming ring assemblies 17, preferably located within an isolation chamber 14, and more preferably within an internal environment 15, and is configured to form a tube 4 by gradually bending the web 3, preferably with its edges overlapping each other, in coordination with each other. This forms a seam 6 of the tube 4 when in use.

[0042] Furthermore, the tube forming and sealing device 12 may be located within the isolation chamber 14, more preferably within the internal environment 15, and may include a sealing head 18 configured to seal the tube 4 longitudinally, preferably along the longitudinal joint portion 6.

[0043] Furthermore, the tube forming and sealing device 12 may include a pressure device configured to apply mechanical force to the longitudinal joint portion 6 of the tube 4 in order to ensure that the tube 4 is sealed along the longitudinal joint portion 6 of the tube 4.

[0044] Preferably, the filling device 13 may include a filling pipe 19 configured to guide a fluid product into the tube 4 when in use. Preferably, the filling pipe 19 may be configured so that at least a portion of it is located inside the tube 4 when in use and to supply a fluid product into the tube 4 when in use.

[0045] In Figures 1 to 11, the package forming apparatus 10 may include one or more, preferably more, actuating devices 25, which are configured to operate the tube 4 during use, preferably at least partially forming (molding), and / or sealing laterally, and / or cutting laterally.

[0046] Preferably, the package forming apparatus 10 may be configured to control an operating device 25, and to seal and cut the tube 4 transversely along equally spaced cross-sections, preferably thereby forming a first transverse seal band 5 and / or a second transverse seal band.

[0047] In some possible non-limiting embodiments, the package forming apparatus 10 may include at least two actuators 25, preferably exactly two actuators 25.

[0048] More specifically, in Figures 2 to 11, the actuation device 25 may comprise at least a first actuation group 26 and a second actuation group 22 configured to cooperate with each other, which are configured to at least partially form and / or laterally seal and / or laterally cut the tube 4.

[0049] In particular, the first actuation group 26 and the second actuation group 22 are movable relative to each other, and preferably, the first actuation group 26 and the second actuation group 22 may be movable toward and apart from each other.

[0050] More specifically, the actuation device 25 may be controllable between an active configuration in which the first actuation group 26 and the second actuation group 27 move toward each other to form at least partially the tube 4, preferably sealing and / or cutting it laterally, and a rest configuration in which the first actuation group 26 and the second actuation group 27 are pulled toward each other.

[0051] The actuating devices 25, in particular the first actuating group 26 and the second actuating group 27, may compress the tube 4 along its cross-section, in particular by squeezing and pressing it flat, to seal the tube 4 laterally along its cross-section, and / or cut it laterally.

[0052] More specifically, the first actuation group 26 and / or the second actuation group 27 may be positioned at a first position and a second position different from the first position, and the actuation device 25 may be controlled in an active configuration and a rest configuration.

[0053] Preferably, during use, the first actuation group 26 and / or the second actuation group 27 periodically move between the first and second positions, thereby periodically controlling the actuation device 25 between an active configuration and a rest configuration.

[0054] As will be described later, the first actuation group 26 and / or the second actuation group 27 may be linearly movable along direction D1, preferably reciprocally, so as to move between the first and second positions.

[0055] Furthermore, the actuation device 25 may be configured to control between an active configuration and a rest configuration by linearly moving the first actuation group 26 and / or the second actuation group 27 along direction D1.

[0056] Preferably, the linear movement of the first actuation group 26 and the linear movement of the second actuation group 27 may be independent of each other or may be different from each other. The first actuation group 26 may move linearly with a different movement profile, or at a different speed, or over a different distance, or over a different time compared to the second actuation group 27.

[0057] More specifically, the first actuation group 26 and the second actuation group 27 may be linearly movable between the first and second positions, thereby controlling the actuation device 25 between an active configuration and a rest configuration.

[0058] Furthermore, direction D1 is lateral with respect to the central axis A, and preferably perpendicular.

[0059] In Figures 3 to 10, the package forming apparatus 10 may include a support structure 28 that movably supports the operating device 25.

[0060] In some possible embodiments, the support structure 28 may comprise one or more support columns 29 that movably support at least one, preferably exactly one, actuation device 25.

[0061] In some non-limiting embodiments, the package forming apparatus 10 may comprise at least two, preferably exactly two, actuation devices 25, and the support structure 28 may comprise at least two, preferably exactly two, support columns 29.

[0062] Preferably, the support column 29 may extend along the longitudinal axis C, and more preferably, define the longitudinal extension of the support structure 28. The longitudinal axis C may have a (substantially) perpendicular direction.

[0063] In Figures 3 to 10, the actuation device 25 may include a support group 30 that movably supports the first actuation group 26 and the second actuation group 27.

[0064] Preferably, the support group 30 may be movably connected to the support structure 28, preferably connected to the support column 29, and more preferably movable along the support column 29.

[0065] Although not required, preferably the package forming apparatus 10 may further include a transport unit 34 configured to advance the first operating group 26 and the second operating group 27 along the first and second forward paths.

[0066] Preferably, the transport unit 34 may be connected to the support group 30, which may move the support group 30 along a path, preferably reciprocating along the support column 29, thereby moving the first actuation group 26 and the second actuation group 27 along the first and second forward paths.

[0067] More preferably, the transport unit 34 may be configured to move the support group 30 along the forward direction D2 when controlling the actuation device 25 from a rest configuration to an active configuration. In particular, the forward direction D2 is parallel to the direction of movement of the tube 4.

[0068] Preferably, direction D1 is lateral to the forward direction D2, and preferably perpendicular.

[0069] More specifically, the first forward path and the second forward path may comprise an actuation section in which the first actuation group 26 and the second actuation group 27 advance along the forward direction of the tube 4 during use, and a return section in which the first actuation group 26 and the second actuation group 27 advance along the direction opposite to the forward direction of the tube 4 during use. In the particular embodiments disclosed, the actuation section and the return section substantially coincide, and the first actuation group 26 and the second actuation group 27 advance along the actuation section and the return section and move in opposite directions during use.

[0070] Furthermore, the actuation device 25 is controlled from a rest configuration to an actuation configuration as the first actuation group 26 and the second actuation group 27 advance along the actuation section, preferably to form a lateral seal, a lateral cut, and at least a portion of the tube 4.

[0071] In particular, when the first actuation group 26 and the second actuation group 27 of the first actuation device 25 are spaced apart from each other (i.e., the first actuation device 25 is in a rest configuration), a first passage is defined between the first actuation group 26 and the second actuation group 27 of the first actuation device 25. Thus, when the first actuation group 26 and the second actuation group 27 of the second actuation device 25 are positioned close to each other (i.e., the second actuation device 25 is in an active configuration), they can pass through the first passage. Similarly, when the first actuation group 26 and the second actuation group 27 of the second actuation device 25 are spaced apart from each other (i.e., the second actuation device 25 is in a rest configuration), a second passage is defined between the first actuation group 25 and the second actuation group 27. Thus, when the first actuation group 26 and the second actuation group 27 of the first actuation device 25 are positioned close to each other (i.e., the first actuation device 25 is in an active configuration), they can pass through the second passage.

[0072] In Figures 3 to 10, the support group 30 includes a linear guide system 31 that movably supports the first actuation group 26 and the second actuation group 27.

[0073] The linear guide system 31 is configured to control the actuation device 25 between a rest configuration and an active configuration, preferably between a first position and a second position, by linearly moving the first actuation group 26 and / or the second actuation group 27.

[0074] More specifically, the first actuation group 26 and / or the second actuation group 27 are linearly movable to the linear guide system 31, thereby allowing the actuation device 25 to be controlled between a rest configuration and an active configuration.

[0075] In particular, the linear guide system 31 enables the first actuation group 26 and / or the second actuation group 27 to move along direction D1.

[0076] Preferably, the linear guide system 31 may include at least one, preferably at least two (linear) guide bars 32. More preferably, the guide bars 32 may be parallel to each other.

[0077] Furthermore, the first actuation group 26 and the second actuation group 27 may be movably connected to the guide bar 32, and in particular, the guide bar 32 may define direction D1.

[0078] Preferably, the guide bar 32 may be lateral, and preferably perpendicular, to the central axis A and / or longitudinal axis C.

[0079] More specifically, the support group 30 may include a support plate 33 that is movably coupled to a support structure 28, preferably a support column 29. Preferably, the guide bar 32 may be attached to the support plate 33.

[0080] While not strictly required, preferably, the package forming apparatus 10 may further include an actuation unit 37 configured to selectively move the first actuation group 26 and / or the second actuation group 27 linearly along the linear guide system 31. This allows for selective control of the actuation device 25 between a rest configuration and an active configuration.

[0081] In particular, the actuation unit 37 may be configured to control the first actuation group 26 and the second actuation group 27 between the first position and the second position.

[0082] Preferably, the control of the actuation device 25 to an active configuration is configured such that the first actuation group 26 and the second actuation group 27 form a cross-section that is offset laterally from the central axis A.

[0083] More specifically, the cross-section may be located in a central plane that is (substantially) parallel to the central axis A.

[0084] In some alternative embodiments, the control in the active configuration of the actuation device 25 is configured such that the first actuation group 26 and the second actuation group 27 are parallel to the central axis A and form a cross section that constitutes a portion of the central axis A.

[0085] In some possible embodiments, it is desirable to obtain a package 2 in which either the first lateral sealing band 5 or the second lateral sealing band can be displaced laterally from the longitudinal axis B, particularly a package 2 having an inclined upper panel and the first lateral sealing band 5 not located in the center of the upper panel. In particular, such a package 2 has an upper panel comprising two parts having different dimensions from each other, with the first lateral sealing band 5 interposed between the two parts. To manufacture such a package 2, it may be advantageous to move laterally a cross section formed after lateral sealing.

[0086] Therefore, the actuation unit 37 may be configured to move the actuation device 25 linearly along the linear guide system 31, particularly one or more guide bars 32, after controlling the actuation device 25 to an active configuration, and in particular after maintaining the actuation device 25 in an active configuration.

[0087] More specifically, the actuation unit 37 may be configured to move the first actuation group 26 and the second actuation group 27 closer together, and then, while maintaining the close proximity between the first actuation group 26 and the second actuation group 27, move them simultaneously along the linear guide system 31, particularly one or more guide bars 32.

[0088] More specifically, the actuation unit 37 may be configured to move the first actuation group 26 and the second actuation group 27 to a second position, and then to move the first actuation group 26 and the second actuation group 27 simultaneously along one or more guide bars 32.

[0089] This configuration makes it possible to shift the cross-section laterally from the central axis A, thereby enabling the manufacture of a package 2 in which, for example, the first lateral sealing band 5 is shifted from the longitudinal axis B. In particular, if the cross-section is already shifted laterally from the central axis A, the cross-section can be further separated laterally from the central axis A.

[0090] Furthermore, such a solution can be advantageous when manufacturing packages with a slanted top panel.

[0091] Preferably, in such a solution, when forming the cross section, the cross section is displaced laterally from the central axis A during formation.

[0092] In Figures 3 to 10, the operating unit 37 is - One or more cam mechanisms 38 (two in the illustrated example) associated with the actuation device 25, preferably with the support group 30, and connected to the first actuation group 26 and the second actuation group 27; and - One or more actuators 39 (two in a particular embodiment) connected to the cam mechanism 38, It may be provided.

[0093] The actuator 39 may be, for example, a motor, preferably an electric motor.

[0094] More specifically, the cam mechanism 38 may comprise, for example, one or more cam profiles 40 (two in a particular embodiment) and one or more cam follower systems 41 (two in a particular embodiment), the cam follower systems 41 being connected to and configured to interact with the cam profiles 40.

[0095] Preferably, one cam follower system 41 may be connected to the first actuation group 26, and another cam follower system 41 may be connected to the second actuation group 27.

[0096] Alternatively, one cam follower system 41 may be connected to either the first actuation group 26 or the second actuation group 27.

[0097] In particular, the cam follower system 41 may connect the cam profile 40 to the first actuation group 26 or the second actuation group 27.

[0098] Furthermore, the actuator 39 may be connected to the cam profile 40 of the cam mechanism 38 and configured to drive relative movement between the support group 30 and the cam profile 40. This allows the interaction between the cam follower system 41 and the cam profile 40 to control the actuation device 25 between a rest configuration and an actuation configuration. When in use, preferably, the first actuation group 26 and / or the second actuation group 27 are guided to perform linear movement along the linear guide system 31, preferably one or more guide bars 32.

[0099] Preferably, the actuator 39 is configured to generate linear movement along a direction D1 that brings the first actuation group 26 and the second actuation group 27 closer together or further apart from each other.

[0100] Preferably, the cam profile 40 comprises or is realized in the form of a channel provided in the carrier structure 42 of the cam mechanism 38 and is separated by at least two engagement surfaces 43.

[0101] Preferably, the cam follower system 41 may be configured to engage with two engagement surfaces 43. For this purpose, the cam follower system 41 includes a cam roller 44 located within a channel and preferably engaging with the two engagement surfaces 43.

[0102] Furthermore, the cam follower system 41 may include a transmission mechanism 45 that supports the cam roller 44 and is connected to the first actuation group 26 or the second actuation group 27.

[0103] Furthermore, the transmission mechanism 45 is configured to transmit movement of the cam roller 44 along the cam profile 40, particularly along the two joint surfaces 43, preferably by the actuator 39 moving the carrier structure 42, thereby causing linear movement in the first actuation group 26 or the second actuation group 27.

[0104] Although not strictly necessary, preferably, in Figures 12a and 12b, the cam mechanism 38 may have two cam profiles 40.

[0105] In Figure 12b, the two cam profiles 40 may be symmetrical with respect to a mirror axis S interposed between the two cam profiles 40. Preferably, the mirror axis S may be parallel to the longitudinal axis C and / or the central axis A.

[0106] With this configuration, when controlling the actuation device 25 from a rest configuration to an active configuration, the cam follower system 41 may interact with the cam profile 40, preferably the first actuation group 26 and the second actuation group 27 move linearly simultaneously facing each other along the linear guide system 31. In this case, the actuation device 25 does not move along the guide system 31 after it has been controlled in the active configuration.

[0107] Alternatively (as shown in Figure 12a), the two cam profiles 40 can be asymmetrical with respect to the mirror axis S.

[0108] With this solution, after the actuation device 25 reaches the active configuration, the actuation device 25 moves linearly along the linear guide system 31 in direction D1. This makes it possible to move the cross section (further) laterally with respect to the central axis A.

[0109] Furthermore, such a solution may allow different operating profiles to be applied to the first operating group 26 and the second operating group 27 when controlling the operating device 25 from a rest configuration to an active configuration.

[0110] In Figure 3, the operating unit 37 may include one or more connecting bars 46 (two in the illustrated example), and connects the actuator 39 to the cam mechanism 38 (preferably the carrier structure 42).

[0111] Furthermore, the actuation unit 37 may further include an endless belt 47 connected to an actuator 39 and supporting the connecting bar 46. The actuation of the actuator 39 causes the endless belt 47 to move forward, which in turn causes the connecting bar 46 to move linearly and further causes the carrier structure 42 to move.

[0112] In particular, in Figures 3 to 6, the first actuation group 26 may include a first half shell 51, and the second actuation group 27 may include a second half shell 52 configured to cooperate with the first half shell 51 to form at least partially a tube 4.

[0113] Preferably, the first half shell 51 and the second half shell 52 are movable between the first limit position and the second limit position, and preferably may be movable when the actuation device 25 is controlled in rest and actuation configurations.

[0114] Furthermore, the first half shell 51 and the second half shell 52 may be movable to a second limit position when the first actuation group 26 and the second actuation group 27 move from a first position to a second position.

[0115] Furthermore, the first half shell 51 and the second half shell 52 may engage with the tube 4 when they are in the second limit position, and force may be applied to at least partially form the tube 4.

[0116] In some possible embodiments, the first half shell 51 and the second half shell 52 undergo angular movement as they move between the first limit position and the second limit position.

[0117] In some possible embodiments, the first half shell 51 is rotatably coupled to a portion of the first actuation group 36, and the second half shell 52 is rotatably coupled to a portion of the second actuation group 37.

[0118] While not required, preferably, the package forming apparatus 10 may further include one or more control devices 53 configured to selectively control the first half shell 51 and the second half shell 52 between a first limit position and a second limit position.

[0119] More specifically, the control device 53 is: - One or more engaging surface profiles 54 (two in a particular embodiment) extending along a direction D3 parallel to direction D1; - One or more cam-following elements 55 (two in a particular embodiment) connected to the first half shell 51 or the second half shell 52, engaging with the engaging surface profile 54, and movable along the engaging surface profile 54; and - One actuating member 56 (two in certain embodiments) is configured to linearly move the engaging surface profile 54 along a direction D4 perpendicular to direction D3, thereby moving the first half shell 51 and the second half shell 52 between a first limit position and a second limit position. It may be provided.

[0120] More specifically, the cam-following element 55 may be coupled to the engagement surface profile 54 and configured to move along the direction D4 as the engagement surface profile 54 moves along the direction D4.

[0121] Furthermore, the cam-following element 55 is coupled to the first half-shell 51 or the second half-shell 52, and as the cam-following element 55 moves along direction D4, the first half-shell 51 or the second half-shell 52 moves between the first limit position and the second limit position.

[0122] In particular, direction D4 is parallel to direction D2 and / or the central axis A.

[0123] It should be noted that one engagement surface profile 54 and one cam-following element 55 (e.g., a cam roller) may be associated with the first half shell 51, and the other engagement surface profile 54 and the other cam-following element 55 (e.g., another cam roller) may be associated with the second half shell 52.

[0124] Preferably, the engaging surface profile 54 can be movably connected to the support group 30, preferably the carrier structure 42. That is, the engaging surface profile 54 can be configured to move relative to the carrier structure 42.

[0125] The engagement surface profile 54 is configured to extend along direction D3, so that the actuation unit 37 can move the first actuation group 26 and / or the second actuation group 27 linearly along the first linear guide system 31 without inducing movement of the first half shell 51 and the second half shell 52. Movement of the first half shell 51 and the second half shell 52 between the first limit position and the second limit position is achieved solely by operating the actuation member 56.

[0126] Furthermore, the actuating member 56 may be configured to cause relative movement of the engaging surface profile 54 with respect to the support group 30.

[0127] The control device 53 may include one or more cam members 57 having grooves, and the cam-following elements 55 may be positioned within the grooves. Preferably, the grooves may have an engagement surface profile 54. That is, the grooves define the engagement surface profile 54.

[0128] Furthermore, the control device 53 may also include a control bar 58 and a cam member 57 connected to the operating member 56, preferably via an endless belt 59.

[0129] In Figures 3 to 11, the actuation device 25 may include a pair of movable interaction tabs 63, which are configured to interact with each other from opposite sides of the tube 4 during use and may be configured to be movable relative to each other. In particular, of the first actuation group 26 and the second actuation group 27, in the illustrated embodiment, the second actuation group 27 may include a pair of interaction tabs 63.

[0130] The package forming apparatus 10 may further include one or more actuators 64 that are operationally connected to a pair of interaction tabs 63 and configured to change the relative positions of the interaction tabs 63.

[0131] Preferably, the operating device 64 is - Interaction surface profile 65 extending along direction D3; - Cam followers 66 connected to a pair of interaction tabs 63, engaging with the interaction surface profile 65 and movable along the interaction surface profile 65; and - An actuator system 67 configured to linearly move the interaction surface profile 65 along direction D4, thereby changing the relative positions of a pair of interaction tabs 63 relative to each other. It may be provided.

[0132] More specifically, the cam follower 66 may be positioned so that as the interaction surface profile 65 moves along direction D4, the cam follower 64 also moves along direction D4.

[0133] Furthermore, the cam follower 66 may be coupled to a pair of interaction tabs 63, and the relative positions of the pair of interaction tabs 63 are changed as the cam follower 66 moves along direction D4.

[0134] More specifically, the actuation device 64 may include a cam element 68 having a groove, and a cam follower 66 may be positioned within the groove. Furthermore, the groove may include an interaction surface profile 65; that is, the groove defines the interaction surface profile 65. Furthermore, the actuation system 67 may be coupled to the cam element 68 and configured to move the interaction surface profile 65 along direction D4.

[0135] The interaction surface profile 65 extends along direction D3, allowing the actuation unit 37 to move the first actuation group 26 and / or the second actuation group 27 linearly along the linear guide system 31, without the pair of interaction tabs 63 moving relative to each other. Even when the first actuation group 26 and / or the second actuation group 27 are moved along the linear guide system 31, the cam follower 66 moves along the interaction surface profile 65, preferably within the groove, so no movement of the pair of interaction tabs 63 occurs.

[0136] Furthermore, the actuation system 67 may be configured such that the interaction surface profile 65 causes relative movement with respect to the support group 30.

[0137] More specifically, the cam element 68 may be movably connected to a pillar 69 of the support structure 28, preferably the pillar 69 being parallel to the support column 29.

[0138] Furthermore, the actuation device 64 may include a control bar 70 that is preferably connected to the actuation system 67 via an endless belt 71 and connected to the cam element 68.

[0139] In particular, as shown in Figures 2 to 11, the operating device 25 includes a sealing element 75 and a counter-sealing element 76 configured to seal the tube 4 laterally, preferably along its cross-section, in cooperation with each other.

[0140] While not mandatory, preferably, the first actuation group 26 may include a sealing element 75, and the second actuation group 27 may include a counter-sealing element 76.

[0141] More specifically, the sealing element 75 and the counter-sealing element 76 may be configured to compress at least laterally, particularly flatten, and seal the tube 4 laterally, while the tube 4 advances along the tube forward path Q and the actuation device 25 is controlled in the actuation configuration.

[0142] Furthermore, the sealing element 75 and the counter-sealing element 76 may be configured to contact the tube 4 from the opposite side of the tube 4.

[0143] More specifically, the sealing element 75 may include a source that generates the energy necessary to obtain the sealing effect. For example, the sealing element 75 may be a sonotrode equipped with an ultrasonic oscillator, or the sealing element 75 may be equipped with an electromagnetic induction source. The counter-sealing element 76 may be a passive element (i.e., an element without an active source). For example, the counter-sealing element 47 may be a metal anvil or a deformable pad.

[0144] Furthermore, the actuation device 25 may include at least one cutting element configured to cut the tube 4 laterally. Preferably, the cutting element may be configured to cut the tube 4 laterally after the tube 4 has been sealed by the seal assembly.

[0145] More specifically, in Figure 3, the transport unit 34 comprises one or more actuators 77 and one or more control bars 78, the control bars being coupled to the actuators 77 and the support group 30, in particular via an endless belt 79.

[0146] Although not required, preferably the actuator 39 and / or the actuating member 56 and / or the actuating system 67 and / or the actuator 77 may include and / or consist of an (electric) motor, preferably a servo motor.

[0147] During use, packaging machine 1 produces packages 2 filled with a fluid product.

[0148] In detail, the conveying device 11 advances the web 3 along the web conveying path P. The tube forming and sealing device 12 forms a tube 4 from the advancing web 3 and seals the tube 4 longitudinally. Furthermore, the filling device 13 fills the tube 4 with a fluid product, and the package forming device 10 seals the tube 4 laterally and cuts it laterally to obtain a package 2.

[0149] More specifically, during the operation of the package forming apparatus 10, the operating device 25 manipulates the tube 4, preferentially sealing it laterally, cutting it laterally, and forming it at least partially.

[0150] During the operation of the actuator device 25, the first actuator group 26 and the second actuator group 27 periodically move linearly, moving closer to and further away from each other, periodically controlling the actuator device 25 between a rest configuration and an active configuration.

[0151] In Figures 13 to 16, number 10' indicates an alternative embodiment of the package forming apparatus of the present invention. Since the package forming apparatus 10' is similar to the package apparatus 10, the following description will be limited to the differences between the two, and the same reference numerals will be used for identical or corresponding parts whenever possible.

[0152] The package forming apparatus 10' differs from the package forming apparatus 10 in that it includes an operating unit 37'. Since the operating unit 37' is similar to the operating unit 37, the following description will be limited to the differences between the two, and the same reference numerals will be used for identical or corresponding parts wherever possible.

[0153] Unlike the actuation unit 37, the actuation unit 37' includes a first actuator connected to the first actuation group 26 and a second actuator 86 connected to the second actuation group 27, with respect to the actuation device 25.

[0154] In particular, the first actuator and the second actuator 86 may be equipped with electric motors, and more specifically, may consist of electric motors.

[0155] The first actuator and the second actuator 86 are configured to move the first actuation group 26 and the second actuation group 27 along the linear guide system 31, respectively, and are configured to selectively control the actuation device 25 between a rest configuration and an actuation configuration, and in particular to move linearly along the linear guide system 31 after the actuation device 25 has been controlled to the actuation configuration.

[0156] Therefore, in the case of the actuation unit 37, a single actuator 39 is coupled to the actuation device 25 via a cam mechanism 38, thereby controlling the linear movement of the first actuation group 26 and the second actuation group 27. On the other hand, in the case of the actuation unit 37', the actuation unit 37' is equipped with two actuators (i.e., a first actuator and a second actuator 86) relative to the actuation device 25, and the actuators are configured to control the linear movement of either the first actuation group 26 or the second actuation group 27 independently. This makes it possible to achieve an even higher production speed.

[0157] More specifically, the actuation unit 37' includes a first lever mechanism 87 that connects the first actuation group 26 and the first actuator to each other, and a second lever mechanism 88 that connects the second actuation group 27 and the second actuator 86 to each other.

[0158] In particular, the operating principle of the first lever mechanism 87 differs from that of the second lever mechanism 88. This is due to the specific arrangement of the first actuator and the second actuator 86.

[0159] More specifically, the position of the first actuator corresponds to the position of the actuator 39 of the actuation unit 37. Furthermore, the first actuator is coupled to the first lever mechanism 87 in the same manner that the actuator 39 is connected to the cam mechanism 38.

[0160] While not mandatory, preferably, the first actuator corresponds to the actuator 39 of the actuation unit 37.

[0161] Preferably, the actuation unit 37' includes a first connecting bar 46 that connects the first actuator and the first lever mechanism 87 to the actuation device 25.

[0162] Furthermore, the actuation unit 37' includes an endless belt 47 that supports the connecting bar 46 relative to the actuation device 25.

[0163] In Figures 13 to 16, the first lever mechanism 87 includes a carrier structure 42' connected to the connecting bar 46.

[0164] Furthermore, the first lever mechanism 87 includes a first lever bar 89 that is angle-movably connected to the carrier structure 42', and a transmission group 90 that is angle-movably connected to the first lever bar 89 and connected to the first actuation group 26.

[0165] More specifically, the transmission group 90 comprises a first bar 91 that is angularly movable-connected to a first lever bar 89, a second bar 92 that is connected to a first actuation group 26, and in particular via an additional connecting lever, and a coupling element that connects the first bar 91 and the second bar 92. In particular, the first bar 91 and the second bar 92 are fixed to the opposite ends of the coupling element.

[0166] More specifically, the connecting element extends along the axis and is angle-movably connected to the support plate 33.

[0167] In particular, the operation of the first actuator causes the endless belt 47 to move forward, which in turn causes the linear movement of the connecting bar 46, which in turn causes the movement of the carrier structure 42'. Furthermore, the movement of the carrier structure 42' causes the angular movement of the first lever bar 89, which in turn causes the movement of the transmission group 90, which in turn causes the linear movement of the first actuation group 26. In particular, the movement of the first lever bar 89 causes the coupling element to move angularly around its axis.

[0168] In Figures 13 to 16, the second lever mechanism 88 comprises a second actuator 86, a first arm 93 connected to the shaft of the second actuator, a second arm 94 connected to the second actuation group 27, and a transmission bar 95 connected to the first arm 93 and the second arm 94, and particularly hinged.

[0169] More specifically, the second arm 94 is angle-movably mounted to the support group 30, particularly the support plate 33.

[0170] Furthermore, the second arm 94 comprises a first portion 96 connected to the transmission bar 95 and a second portion 97 connected to the second actuation group 27, and in particular further connected via a connecting lever.

[0171] Preferably, the first portion 96 and the second portion 97 are arranged laterally to each other, for example, to form a V shape.

[0172] In particular, the first part 96 and the second part 97 are molded as a single unit.

[0173] During use, the second actuator 86 generates movement in the transmission bar 95 via the first arm 93. The movement of the transmission bar 95 causes angular movement of the second arm 94, which in turn causes movement of the second actuation group 27.

[0174] The operation of the package forming apparatus 10' is similar to that of the package forming apparatus 10. The differences in the use of the package forming unit 10 and the package forming unit 10' are described below.

[0175] In particular, there is a difference in the control method of the linear movement of the first actuation group 26 and the second actuation group 27. In the case of the package forming apparatus 10, the linear movement of the first actuation group 26 and the second actuation group 27 is controlled by a single actuator 39 acting on a cam mechanism 38. On the other hand, in the case of the package forming apparatus 10', the linear movement of the first actuation group 26 and the second actuation group 27 is controlled by a first actuator and a second actuator 86.

[0176] More specifically, the linear movement of the first actuation group 26 is controlled by the first actuator, and the linear movement of the second actuation group 27 is controlled by the second actuator 86.

[0177] More specifically, the first actuator controls the movement of the first actuation group 26 via the first lever mechanism 87, and the second actuator 86 controls the movement of the second actuation group 27 via the second lever mechanism 88.

[0178] In Figures 17 to 19, the number 10'' indicates an alternative embodiment of the package forming apparatus according to the present invention. Since the package forming apparatus 10'' is similar to the package forming apparatus 10', the following description will be limited to the differences between the two, and the same reference numerals will be used for identical or corresponding parts wherever possible.

[0179] Unlike package forming apparatus 10', package forming apparatus 10'' is equipped with an operating unit 37''.

[0180] Actuator unit 37” is similar to actuator unit 37', but differs in the arrangement of the first actuator 85 and the second actuator 86.

[0181] Furthermore, the drive unit 37" includes at least one first coupling mechanism 100 that connects the first actuation group 26 and the first actuator 85 to each other, and a second coupling mechanism 101 that connects the second actuation group 27 and the second actuator 86 to each other.

[0182] Furthermore, the actuation unit 37" includes a support 102 that is particularly movably coupled to the support structure 28, and especially to the support column 29, with respect to the actuation device 25.

[0183] More specifically, the support 102 is connected to a support structure 28, particularly to a support 29, and comprises a first plate 103 and a second plate 104 that are particularly movably connected. Even more specifically, the first plate 103 and the second plate 104 interpose a support group 30, particularly a support plate 33, between them.

[0184] More specifically, during use, the support group 30, in particular the support plate 33, moves between the first plate 103 and the second plate 104.

[0185] An advantage is that the support 102, particularly the first plate 103, holds the first actuator 85 and the second actuator 86. Furthermore, the support 102, particularly the first plate 103 and the second plate 104, holds at least a portion of the first coupling mechanism 101 and the second coupling mechanism 102.

[0186] More specifically, the first actuator 85 and the second actuator 86 are mounted on the first plate 103. In particular, the first actuator 85 and the second actuator 86 are mounted on the opposite side of the first plate 103.

[0187] In Figures 17 to 19, the first coupling mechanism 100 and the second coupling mechanism 102 each include a control bar 105 (for example, parallel to the longitudinal axis A and / or longitudinal axis C), a coupling group 106 connected to the first actuator 85 and the second actuator 86, and the first actuation group 26 and the second actuation group 27.

[0188] Furthermore, the control bar 105 is configured to interact with the coupling group 106 to control the linear movement of the first actuation group 26 or the second actuation group 27.

[0189] In particular, when the control bar 105 is moved by the first actuator 85 or the second actuator 86, the coupling group 106 moves, which in turn causes the first actuator device 26 or the second actuator device 27 to move.

[0190] More specifically, the coupling group 106 has a passage, and the control bar 105 passes through the passage.

[0191] Furthermore, the coupling group 106 includes at least two contact elements 108, rollers in the illustrated example, the contact elements partially demarcate the passage. A portion of the control bar 105 is interposed between the contact elements 108 and is configured to contact at least one of the contact elements 108 when moved by the operation of the first actuation device 85 or the second actuation device 86, thereby moving the first actuation group 26 or the second actuation group 27 linearly.

[0192] In Figures 17 to 19, the first actuator 85 and the second actuator 86 are configured to move the control bar 105 along an auxiliary direction having a component parallel to direction D1. This causes the interaction between the control bar 105 and the coupling group 106, particularly the interaction with at least one of the contact elements 108, to cause the coupling group 106 to move linearly along direction D1. As a result, the first actuation group 26 or the second actuation group 27 also moves linearly along direction D1.

[0193] More specifically, the first coupling mechanism 100 and the second coupling mechanism 101 each include a first arm 109 rotatably connected to the first plate 103 and connected to the first actuator 85 or the second actuator 86 (more specifically to its axis), and a second arm 110 rotatably connected to the second plate 104.

[0194] Preferably, the first arm 109 and the second arm 110 have a V-shape.

[0195] The control bar 105 is connected to the first arm 109 and the second arm 110.

[0196] More specifically, the first coupling mechanism 100 and the second coupling mechanism 101 have an auxiliary bar 111 that is parallel to the control bar 105 and are connected to the first arm 109 and the second arm 110.

[0197] More specifically, the control bar 105 and the auxiliary bar 111 are connected to the opposite side of the first arm 109 and the opposite side of the second arm 110.

[0198] The operation of the package forming apparatus 10'' is similar to the operation of the package forming apparatus 10'.

[0199] The differences between the operation of package forming apparatus 10” and package forming apparatus 10' will be explained below.

[0200] In particular, the difference lies in the specific method by which the linear movement of the first actuator 26 and the second actuator 27 is induced.

[0201] More specifically, the linear movement of the first actuator device 26 and the second actuator device 27 is controlled by controlling the movement of the control bar 105.

[0202] The advantages of the package forming apparatus 10, 10', 10'' and / or packaging machine 1 of the present invention are evident from the above description.

[0203] In particular, the package forming apparatus 10, 10', and 10'' have a simple structure and kinematics.

[0204] Furthermore, the package forming apparatus 10, 10', and 10'' are lighter than conventional package forming apparatuses.

[0205] Furthermore, it has been confirmed that the distribution of sealing pressure is improved during the operation of the package forming apparatus 10, 10', and 10''.

[0206] Obviously, modifications may be made to the package forming apparatus 10, 10', 10'' and / or packaging machine 1 described herein, but these will not deviate from the scope of protection as defined in the appended claims.

Claims

1. A package forming device (10, 10', 10") is positioned in a packaging machine (1) and configured to operate a tube (4) of packaging material to form a package (2) from the tube (4), The package forming apparatus (10, 10', 10") comprises at least one actuation device (25) having a first actuation group (26) and a second actuation group (27) configured to operate the tubes (4) in a coordinate manner to form the package (2), The first actuation group (26) and the second actuation group (27) are configured to perform relative movements to each other. The actuation device (25) comprises at least one support group (30), and the first actuation group (26) and the second actuation group (27) are movably connected to the support group (30). The actuator device (25) is controllable so that the first actuator group (26) and the second actuator group (27) are separated from each other and close together. The support group (30) includes a linear guide system (31), The first actuation group (26) and / or the second actuation group (27) are linearly movable to the linear guide system (31), and the actuation device (25) is controllable between a rest configuration and an actuation configuration by linearly moving the first actuation group (26) and / or the second actuation group (27) along the linear guide system (31). Package forming apparatus ((0, 10', 10")).

2. The system further comprises actuation units (37, 37', 37") configured to selectively drive the linear movement of the first actuation group (26) and / or the second actuation group (27) along the linear guide system (31), and configured to selectively control the actuation device (25) between the rest configuration and the actuation configuration. The package forming apparatus according to claim 1.

3. The operating unit (37, 37', 37") is configured to control the device (25) to the active configuration and then move it linearly along the linear guide system. The package forming apparatus according to claim 2.

4. The aforementioned operating unit (37) One or more cam mechanisms (38) connected to the support group (30) and connected to the first operating group (26) and the second operating group (27), One or more actuators (39) connected to the cam mechanism (38), Equipped with, The cam mechanism (38) comprises one or more cam profiles (40) and one or more cam follower systems (41) connected to the first actuation group (26) and / or the second actuation group (27), wherein the cam follower systems (41) are connected to the cam profiles (40). The actuator (39) is connected to the cam profile (40) of the cam mechanism (38) and is configured to drive relative movement between the support group (30) and the cam profile (40), and controls the actuation device (25) between the rest configuration and the actuation configuration through the interaction between the cam follower system (41) and the cam profile (40). The package forming apparatus according to claim 2 or 3.

5. The cam mechanism (38) comprises two cam profiles (40) and two cam follower systems (41), the cam follower systems (41) being connected to the cam profiles (40), One of the cam follower systems (41) is connected to the first operating group (26), and the other cam follower system (41) is connected to the second operating group (27). The actuator (39) is configured to drive relative movement between the cam profile (40) and the support group (30), and the interaction between the cam follower system (41) and the cam profile (40) drives linear movement so that the first actuation group (26) and the second actuation group (27) move closer to or away from each other. The package forming apparatus according to claim 4.

6. The actuation unit (37', 37") is configured such that at least one first actuator (39, 85) is connected to the first actuation group (26), and at least one second actuator (86) is connected to the second actuation group (27). The first actuators (39, 85) and the second actuator (86) are configured to move the first actuation group (26) and the second actuation group (27) linearly along the linear guide system (31), and to selectively control the actuation device (25) between the rest configuration and the actuation configuration. A package forming apparatus according to any one of claims 1 to 3.

7. The actuation unit (37') comprises at least one first lever mechanism (87) connecting the first actuation group (26) and the first actuator (39) to each other, and at least one second lever mechanism (88) connecting the second actuation group (27) and the second actuator (86) to each other. The actuation unit (37') is provided with a connecting bar (46) that connects the first actuator (36) and the first lever mechanism (87) to the actuation device (25), The first lever mechanism (87) includes a carrier structure (42') connected to the connecting bar (46), The first lever mechanism (87) comprises a first lever bar (89) that is angle-movably connected to the carrier structure (42'), and a transmission group (90) that is angle-movably connected to the first lever bar (89) and connected to the first actuation group (26), The second lever mechanism (88) comprises a first arm (93) connected to the second actuator (86), a second arm (94) connected to the second actuation group (27), and a transmission bar (95) connected to the first arm (93) and the second arm (94). The package forming apparatus according to claim 6.

8. The actuation unit (37") comprises at least one first coupling mechanism (100) that connects the first actuation group (26) and the first actuator (85) to each other, and at least one second coupling mechanism (101) that connects the second actuation group (27) and the second actuator (86) to each other. The first coupling mechanism (100) and the second coupling mechanism (101) each include a control bar (105) connected to the first actuator (85) and the second actuator (86), and a coupling group (106) connected to the first actuation group (26) and the second actuation group (27). The first actuator (85) and the second actuator (86) are configured to move the connecting bar (105) along the linear guide system (31) along an auxiliary direction having a component of the linear movement direction (D1) of the first actuation group (26) and / or the second actuation group (26), and the interaction between the connecting bar (105) and the coupling group (106) is such that the coupling group (106) moves linearly along the linear movement direction (D1). The package forming apparatus according to claim 6.

9. During use, the tube (4) extends along the central axis (A), The linear guide system (31) guides the first actuation group (26) and / or the second actuation group (27) to move along a direction (D1) substantially perpendicular to the central axis (A). A package forming apparatus according to any one of claims 1 to 8.

10. The system further comprises a support structure (29) that movably supports the support group (30), and a transport unit (34) configured to move the support group (30) linearly along the forward direction (D2), The linear guide system (31) guides the movement of the first actuation group (26) and / or the second actuation group (27) along a direction (D1) substantially perpendicular to the forward direction (D2). A package forming apparatus according to any one of claims 1 to 9.

11. The linear guide system (31) includes at least one guide bar (32), and the first actuation group (26) and the second actuation group (27) are movably coupled to the at least one guide bar (32). A package forming apparatus according to any one of claims 1 to 10.

12. The actuation device (25) comprises a pair of movable interaction tabs (63), the pair of interaction tabs (63) configured to act with each other from opposite sides of the tube (4) during use, and configured to be movable relative to each other. Either the first actuation group (26) or the second actuation group (27) comprises the pair of interaction tabs (63), The actuator device (25) further comprises an actuator device (64) which is operationally connected to the pair of interaction tabs (63) and configured to change the relative position of the pair of interaction tabs (63), The aforementioned operating device (64) is An interaction surface profile (65) extends along a first direction (D3) parallel to the direction (D1) in which the first actuation group (26) and / or the second actuation group (27) move linearly along the linear guide system (31), A cam follower (66) coupled to the pair of interaction tabs (63), engaging with the interaction surface profile (65), and movable along the interaction surface profile (65), An operating system (67) configured to move the interaction surface profile (65) linearly along a second direction (D4) perpendicular to the first direction (D3), Equipped with, The cam follower (66) is coupled to the interaction surface profile (65), and is configured such that when the interaction surface profile (65) moves along the second direction (D4), the cam follower (64) moves along the second direction (D4). The cam follower (66) is connected to the pair of interaction tabs (63), and as the cam follower (66) moves along the second direction (D4), the relative position of the pair of interaction tabs (63) changes. A package forming apparatus according to any one of claims 1 to 11.

13. The actuation system (67) comprises a cam element (68) having a groove, the cam follower (66) is positioned within the groove, and the groove has an interaction surface profile (65). The package forming apparatus according to claim 12.

14. The first actuation group (26) comprises a first half shell (51), and the second actuation group (27) comprises a second half shell (52). The package forming apparatus (10, 10', 10") further includes a control device (53) configured to control the first half shell (51) and the second half shell (52) between a first limit position and a second limit position, The control device (53) is One or more engaging surface profiles (54) extending along a first direction (D3) parallel to the direction (D1) in which the first actuation group (26) and / or the second actuation group (27) move linearly along the linear guide system (31), One or more cam-following elements (55) connected to the first half-shell (51) or the second half-shell (52), engaging with at least one of the engaging surface profiles (54) and movable along the engaging surface profile (54), An operating member (56) configured to move one or more engaging surface profiles (54) linearly along a second direction (D4) perpendicular to a first direction (D3), Equipped with, The cam-following element (55) is coupled to the engagement surface profile (54), and is configured to move along the second direction (D4) when the engagement surface profile (54) moves along the second direction (D4). The cam-following element (55) is connected to the first half shell (51) or the second half shell (52), and as the cam-following element (55) moves along the second direction (D4), the first half shell (51) or the second half shell (52) moves between the first limit position and the second limit position. A package forming apparatus according to any one of claims 1 to 13.

15. The control device (53) comprises a cam member (57) having a groove, and the cam-following element (55) is positioned within the groove, and the groove has an engaging surface profile (54). The package forming apparatus according to claim 14.

16. A packaging machine (1) that forms a package (2) of a fluid product from a tube (4) formed from a web (3) of packaging material and sealed in the longitudinal direction, The aforementioned packaging machine (1) A conveying device (11) is configured to advance the packaging material web (3) along the web advancement path (P) and the tube (4) along the tube advancement path (Q), A tube forming and sealing device (12) is configured to form the tube (4) from the web (3) of the packaging material and to seal the tube (4) in the longitudinal direction. A filling device (13) for filling the tube (4) with a fluid product, A package forming apparatus (10, 10', 10") according to any one of claims 1 to 15, A packaging machine (1) equipped with the following:

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