DE202023102320U1 - “Lower banding unit and packaging banding machine that receives it” - Google Patents

Abstract

Banding unit (100) for a banding machine (200) for packaging, which contains a reel seat (10) for sealing tape and a support structure (20) for the reel seat (10), characterized in that it comprises drive elements (40; 42), one of which a movable section is attached to the support structure (20) in such a way that the support structure (20) / bobbin holder (10) assembly relative to a work surface (213) of the banding machine (200) between an operating position in which the lower banding unit (100) under a work surface (213), and an elevated position or a position for loading onto the spool receptacle (10) a new spool (12) of fastener tape in which the banding unit (100) is positioned above the work surface (213).

Description

Technical part

The present invention relates generally to the technical field of automatic or semi-automatic machines for closing packages. More precisely, the invention relates to a lower banding unit for a banding machine for packaging, for example cardboard boxes. The lower banding unit is designed in such a way that a new spool of closure band can be loaded in a comfortable, ergonomic, simple and safe manner.

Previous state of the art

Automatic and semi-automatic banding machines for closing packages are known, designed to apply sealing strips to the top and bottom of packages, typically cardboard boxes, after folding the sealing folds of these packages.

For this purpose, the banding machines contain an upper and a lower banding unit, placed respectively above and below the feed line of the packages to be sealed, the latter being supported by a work surface during the feed and the sealing with sealing tape.

The top and bottom banding units of the known type supply an adhesive tape, typically of synthetic material, coming from a respective spool resting on a spool nest and adhered by means of pivot rollers to the top and bottom of the package to be sealed.

The banding units also include two applicator rollers, preferably rubberized, one of which is placed at the entrance and the other at the exit of the banding unit, and which are elastically energized to protrude and retract respectively from the perimeter of the package while this moves past. In addition, a movable cutting blade is provided between the two rollers, ie the input and output rollers, in order to cut through the strip if necessary.

The growing demand for eco-sustainable solutions, that is, solutions with a low environmental footprint, has led to the development of banding units that use a closure tape made of biodegradable material, typically gummed paper, rather than synthetic material. These banding units include devices that ensure the moistening of the gummed side of the gummed paper band to ensure rapid, strong and permanent adhesion to the top and top of the package to be sealed.

Banding using gummed paper of the known type for packaging sealing machines is described for example in the application for Italian patent application no. IT202000000544 described in the name of EVI srl.

This banding unit contains a spool holder on which a spool with a band of gummed paper is placed, and a box-shaped body inside which a starting device, a moistening unit and a cutting unit for the gummed paper band are housed. The tape of gummed paper unwound from the spool passes through a pair of deflection and braking rollers and is then guided from above and sideways into a box-shaped body of the banding unit, inside which the structural parts of the banding unit are housed. The tape made of gummed paper emerges from the bottom of the box-shaped body in a vertical movement from the banding unit.

The presently known lower banding units suffer from a disadvantage related to their position under the working surface of the banding machine. As a result, to load a new spool of closure tape, whether synthetic or gummed paper, onto the banding unit, a user has to go under the machine's work surface, an uncomfortable, uncomfortable and potentially dangerous position for his or her security occupies.

The main aim of this invention is therefore to make available a lower banding unit for a packaging banding machine and a corresponding packaging banding machine, capable of overcoming or at least reducing the disadvantage described above with regard to the lower banding units of the known type .

More specifically, the main purpose of the present invention is to make available a lower banding unit for a packaging banding machine, designed to allow a comfortable and ergonomic loading of a new spool of sealing tape by the user of the banding machine.

Another purpose of the present invention is to make available a lower banding unit for a packaging banding machine that offers greater safety for the user.

Yet another purpose of the present invention is to make available a lower banding unit for a package banding machine, designed to simplify the operation of loading a new spool of closure tape by the user of the banding machine.

Last but not least, the purpose of the present invention is to provide a lower banding unit for a package banding machine, which can be manufactured within a time frame and at a cost that is competitive.

These and other purposes, which will become more apparent as this description proceeds, are achieved by a lower banding unit and a packaging banding machine according to the appended independent claims from 1 to 10. Further characteristics of the invention are described in the dependent patent claims.

In a first aspect, the invention thus relates to a lower banding unit for a banding machine for packaging, which contains a spool receptacle for the closure tape and a support structure for the spool receptacle. The lower banding unit is notable for the fact that it includes drive elements, one movable end of which is fixed to the support structure and controlled to move the support structure/spool holder assembly relative to a working surface of the banding machine between an operative position in which the lower banding unit is under positioned on the work surface and an elevated position or the position for loading a new spool of fastener tape onto the spool nest with the banding unit positioned over the work surface.

Thanks to this combination of characteristics, thanks in particular to the presence of drive elements for raising the bobbin holder above the working surface of the banding machine, the procedure for loading a new bobbin of closure band by a machine user becomes convenient, simple, ergonomic and safe.

In a second aspect, the invention relates to a packaging banding machine including a lower banding unit as defined above.

character list

• - ist die eine Seitenansicht einer unteren Banderoliereinheit gemäß der vorliegenden Erfindung, wobei die untere Banderoliereinheit montiert auf einem Rahmen einer Banderoliermaschine für Verpackungen und mit der Spulenaufnahme in Betriebsstellung, also bereit zum Anbringen eines Verschlussbands längs der unteren Seite der zu verschließenden Verpackungen dargestellt wird;
• - ist die eine der ähnliche Ansicht, die die Spulenaufnahme der unteren Banderoliereinheit in erhöhter oder Ladeposition für eine neue Spule mit Verschlussband zeigt;
• - ist die eine perspektivische Ansicht eines Teils der unteren Banderoliereinheit der und ;
• - ist die eine perspektivische Ansicht eines weiteren Teils der unteren Banderoliereinheit der und ;
• - ist die eine Seitenansicht einer Banderoliermaschine für Verpackungen gemäß der vorliegenden Erfindung, mit der unteren Banderoliereinheit in Betriebsposition unter der Arbeitsfläche der Banderoliermaschine und untergebracht in einem unteren Fach, das mit Klappen verschlossen ist, weswegen die Einheit nicht zu sehen ist;
• - ist die eine der ähnliche Ansicht, mit der unteren Banderoliereinheit in erhöhter oder Ladeposition für eine neue Spule und folglich oberhalb der Arbeitsfläche der Banderoliermaschine positioniert.

Other characteristics and advantages of the present invention will appear from the following detailed description of a preferred mode of implementation of a banding unit for a packaging banding machine and of a packaging banding machine, given hereinafter purely indicative and not limiting, with reference to the attached drawings. In the drawings:

• - is the Figure 14 is a side elevational view of a lower banding assembly according to the present invention, the lower banding assembly being shown mounted on a package banding machine frame and with the spool nest in the operative position, ready for application of a sealing tape along the lower side of packages to be sealed;
• - is the one of the similar view showing the spool receptacle of the lower banding unit in an elevated or loading position for a new spool of fastener tape;
• - is the a perspective view of a part of the lower banding unit of FIG and ;
• - is the a perspective view of another part of the lower banding unit and ;
• - is the Figure 12 is a side view of a package banding machine according to the present invention, with the lower banding unit in operative position under the work surface of the banding machine and housed in a lower compartment closed with flaps, therefore the unit cannot be seen;
• - is the one of the Similar view, with the lower banding unit in the elevated or loading position for a new coil and consequently positioned above the banding machine work surface.

Detailed description of the invention

Referring to the until 10 and 11 showing a lower banding unit of a package banding machine according to the present invention.

The lower banding unit, generally designated by the reference numeral 100, includes a spool receptacle 10 on which a spool 12 placed with sealing tape, for example synthetic tape or gummed paper tape, attached to a bottom side of packages.

The coil seat 10 is anchored to a first end piece 21 of a support structure 20, which is preferably made of steel and preferably also supports a body 22 in a central position.

The body 22 is composed of a box-type holding frame in which the components of the lower taping unit 100 attached thereto are housed. In particular, housed inside the body 22 are a tape drive element, a tape loading and unwinding unit and a tape cutting unit. These aggregates, which are not visible in the figures, are known and will not be described in detail here. In the case of adhesive tapes made of gummed paper, the body 22 also houses a tape moistening unit, which is also already known and will therefore not be described in detail here.

The synthetic material or gummed paper sealing tape unwound from the spool 12 is fed by a pair of idler and brake rollers (not shown) from above and laterally into the body 22 of the banding assembly 100 and exits in a vertical motion from below the body 22 out.

A second end piece 23 of the support structure 20, opposite the first end piece 21 for anchoring the bobbin holder 10, is adapted to be attached to a work surface 213 of a packaging sealing machine 200 (seen in Figs and ) can be mounted such that when mounted on a closure machine, the lower banding assembly 100 can rotate relative to the work surface 213 between an operative position and a position for loading a new spool of closure tape 12 at a predetermined angle.

In particular, the lower banding unit 100 is shown in FIG Operating position shown below the working surface of the capping machine 200, while in the in FIG shown loading position, the lower banding unit 100 is positioned over the work surface 213 of the sealing machine 200.

For this purpose, the lower banding unit 100 therefore includes drive elements preferably including a pneumatic cylinder 40, for example of the double-acting type, controlled by a dedicated solenoid valve 42 with position locking.

Like in the As shown in detail, a lower bracket 43, which is preferably formed like a fork, is connected to a lower end piece 41 of the pneumatic cylinder 40 for fastening the pneumatic cylinder 40 to a base plate 211 of a frame 210 (seen in Figs and ) connected to the capping machine.

Also, as detailed in the shown, an upper bracket 46 is connected to a movable end piece of the actuator, ie to a free end piece 44 of a rod 45 of the pneumatic cylinder 40 for fastening the pneumatic cylinder 40 to the support structure 20 of the lower banding unit 100. In particular, the upper bracket 46 has an L-shape, which is why the free end part 44 of the rod 45 of the pneumatic cylinder 40 is fixed to an end part of a first arm 46a of the L, while an end part of the other arm 46b of the L is fixed to the support structure 20 of the lower banding unit 100 is attached.

The lower banding unit 100 also includes a plate-shaped, elongate, preferably curved member 30 equipped with a gap 32 which is also bent with substantially the same curvature as the plate-shaped arm 30. The carrier structure 20 of the lower banding unit 100 is fastened to an upper end piece of the plate-shaped, elongate element 30, for example by means of a pin 24 which is fixed at the upper end of the gap 32. On the other hand, a lower end part of the plate-shaped, elongated element 30 is anchored by means of an upper bracket 34 to an upper end of the flexible cable chain 35, the lower end of which, however, is designed in such a way that it is fixed by means of a lower bracket 36 to the base plate 211 of the frame 210 of the capping machine 200, preferably at the attachment point of the lower end piece 41 of the pneumatic cylinder 40 can be attached.

The way in which the lower banding unit 100 is fastened to the frame 210 of the sealing machine 200 allows the carrier structure 20/coil receptacle 10 assembly to be safely pneumatically raised actively and passively by means of direct control by the user.

In the and 1, a package banding machine is shown having mounted thereon a lower banding assembly 100 according to the present invention.

The package banding machine, generally indicated by the reference numeral 200, comprises a frame 210 including a base 211 and two pairs of facing uprights 212, only one pair of which is shown in the figures. The frame 210 supports a work surface 213 which extends parallel to the base plate 211 between the pairs of uprights 212 facing each other and on which the packages to be closed are movably carried along a feed path.

The banding machine 200 also includes an upper banding unit 110 and a lower banding unit 100, which with reference to FIG until described and shown above.

The upper banding unit 110 is mounted on the frame 210 above the work surface 213 and, analogously to the lower banding unit 100, it includes a spool holder 111 on which a spool 112 with sealing tape, for example synthetic adhesive tape or a band of gummed paper, and a Support structure 120 of the coil holder 111 is placed. The support structure 120 also supports a body 122 which corresponds broadly to the body 22 of the lower banding assembly 100 and is therefore not described further.

In particular, the upper banding unit 110 is accommodated in an upper compartment 114 of the banding machine 200, which is preferably closed off laterally by panels 215, preferably made of glass or transparent plastic material. The clear side panels 215 can be opened by the user to gain access to the upper banding assembly 110 and the lower banding assembly 100 when the latter is in the raised or loading position for a new closure tape spool 12, as shown in FIG shown.

In the in the In the operating or lowered position shown, however, the lower banding unit 100 is positioned below the work surface 213 and is housed in a lower compartment 216 of the banding machine 200 . The lower compartment 216 is preferably closed by a pair of flaps 217, each of which is hinged to the corresponding post 212 of a pair of posts.

As shown above, the second end piece 23 of the support structure 20 of the lower banding unit 100 is mounted on the work surface 213 of the sealing machine 200 in such a way that the lower banding unit 100 moves at a predetermined angle a relative to the work surface 213 between an operating position and a loading position for a new Closure reel 12 can rotate. In addition, the lower end piece 41 of the pneumatic cylinder 40 is fixed by means of the lower bracket 43 to the base plate 211 of the frame 210 of the banding machine. The plate-shaped, elongate element 30 as an additional carrier of the lower banding unit 100 is also fastened to the base plate 211 of the frame 210 by means of the lower bracket 36 of the flexible cable chain 35 .

The supply of compressed air to the pneumatic cylinder 40 of the lower banding unit 100 is secured by connecting the sealing machine 200 to the compressed air network provided at the installation site of the banding machine. Alternatively, the banding machine 200 can be equipped with a compressor (not shown).

• Angenommen wird, dass ein Nutzer der unteren Banderoliereinheit 100 eine neue Verschlussbandspule 12 auf die Spulenaufnahme 10 laden möchte.

The operation of the invention seems obvious to those skilled in the art from what has already been described and is as follows:

• It is assumed that a user of the lower banding unit 100 would like to load a new closure tape spool 12 onto the spool receptacle 10 .

For this purpose, the user starts the pneumatic cylinder 40 with the banding machine 200 in standstill or stop function, whereupon the rod 45 moves out and the carrier structure 20 / coil holder 10 assembly is lifted after the carrier structure 20 has rotated relative to the working surface 213 of the banding machine 200.

In the, in the In a clearly visible raised position, the lower banding unit 100, in particular the bobbin holder 10, is located above the work surface 213 and consequently in the upper compartment 214 of the banding machine 200. The bobbin holder 10 can therefore be easily reached by the user, who can comfortably, ergonomically, simply and safe manner to attach a new fastener tape spool 12.

After the new bobbin 12 has been loaded, the user restarts the pneumatic cylinder 40, whereupon the rod 45 retracts and the support structure 20/bobbin holder 10 assembly lowers following rotation of the support structure 20 relative to the work surface 213 in the opposite direction to the lifting.

At the end of the rotation, the lower banding unit 100 is again in the initial position under the working surface 213 of the sealing machine, awaiting the arrival of a package to the underside of which the sealing tape is to be applied.

From the description that has been given, the characteristics of the lower banding unit and of the machine for closing the packaging that includes it, object of the present invention, and the advantages related thereto, emerge clearly. In particular, they enable lower banding unit and the closure machine for packages according to the invention a convenient and ergonomic loading of a new spool of closure tape entrusted to the user of the closure machine. In addition, the lower banding unit is safer for the user. Finally, the lower banding unit simplifies the loading of a new spool of closure band, which is the responsibility of the closure machine operator.

The materials used for the lower banding unit, as well as the dimensions, can be freely selected depending on requirements and the technical status.

The lower banding unit thus conceived is capable of undergoing numerous modifications and variants, all of which are protected, as appears from the appended claims; moreover, all details can be replaced by technically equivalent elements.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• IT 202000000544 [0007]

Claims (10)

Banding unit (100) for a banding machine (200) for packaging, which contains a spool receptacle (10) for sealing tape and a support structure (20) for the spool receptacle (10), characterized in that it comprises drive elements (40; 42), of which a movable section is attached to the support structure (20) in such a way that the support structure (20) / bobbin holder (10) assembly relative to a work surface (213) of the banding machine (200) between an operating position in which the lower banding unit (100) under a work surface (213), and an elevated position or a position for loading onto the spool receptacle (10) a new spool (12) of fastener tape in which the banding unit (100) is positioned above the work surface (213). Banding unit (100) according to the claim 1 in which the coil holder (10) is fixed to a first end piece (21) of the support structure (20), while a second end piece (23) of the support structure (20) is adapted to be rotatably mounted on the work surface (213). can. Banding unit (100) according to the claim 1 or 2 , in which the drive elements consist of a pneumatic cylinder (40). Banding unit (100) according to the claim 3 in which said pneumatic cylinder (40) is of the double-acting type and is controlled by a position-locking solenoid valve (42). Banding unit (100) according to the claim 3 or 4 , in which a lower bracket (43) is connected to a lower end piece (41) of the pneumatic cylinder (40) for fastening the pneumatic cylinder (40) to a base plate (211) of a frame (210) of the banding machine (200). Banding unit (100) according to any one of the preceding claims, in which an upper bracket (46) is connected to a free end (44) of a rod (45) of the pneumatic cylinder (40) for fastening the pneumatic cylinder (40) to the support structure (20). . Banding unit (100) according to the claim 6 in which an upper bracket (46) is formed in L-shape, in which the free end (44) of the rod (45) of the pneumatic cylinder (40) fixed to an end portion of the first arm (46a) of the L, and wherein one end of the other arm (46b) of the L is attached to the support structure (20). Banding unit (100) according to any one of the preceding claims, further including a plate-shaped, elongate member (30), which is preferably curved and is provided with a slot (32), which is also preferably curved, the curvature substantially corresponding to the curvature of the plate-shaped Arms (30) in which the support structure (20) includes a spigot (24) for fixing to an upper end of the plate-shaped elongate member (30). Banding unit (100) according to the claim 8 further including a flexible cable chain (35) to an upper end of which a lower end portion of the plate-shaped elongate member (30) is anchored by means of an upper bracket (34) and a lower end portion is adapted to can be attached to the base plate (211) of the frame (210) of the banding machine (200) by means of a lower bracket (36). A package banding machine (200) including a banding unit according to any one of the preceding claims.