JP2003237745A - Filling unit of machine for packaging flowable food - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filling unit designed to solve a conventional drawback that, while a filling duct must be removed from a box structure for cleaning to assure the highest level in hygiene in the filling unit of a machine for packaging flowable food, it is difficult to remove and reassemble as the duct can be removed and reassembled only from the inside of the box structure. <P>SOLUTION: The filling unit (15) of the machine for packaging flowable food includes the box structure (16) through which a packaging material tube (9) is fed, the filling duct (12) extending partially inside the box structure (16) to feed the flowable food to the packaging material tube (9), and a releasable mounting means (60) for mounting the filling duct (12) on a wall (19) of the box structure (16). The wall (19) has a removable portion (28) which can be removed from the outside, carries the filling duct (12), and can be fixed to a remaining portion of the wall (19) by means of the releasable mounting means (60). <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a filling unit for a machine for packaging liquid food products.

[0002]

BACKGROUND OF THE INVENTION As is well known, many liquid foods such as fruit juices, pasteurized or UHT (ultra high temperature) milk, wine, tomato sauce are packed in packages formed of pasteurized packaging materials. Are sold.

A typical example of such a package is Tetra.
A package in the form of a parallelepiped for liquid or liquid food products, known as Brik Aseptic®, which is formed by folding and sealing a web of laminated packaging material. The laminated packaging material comprises a layer of fibrous material, for example paper, coated on both sides with a heat-sealable plastics material, for example polyethylene, and in the case of a sterile package, a final contact with the food product inside the package. The side of the packaging material to be coated also has a layer of oxygen barrier material, for example an aluminum film, which layer is further covered by a layer of heat-sealable plastic material.

Packaging machines for producing such packages are well known, in which packaging material webs are unwound from reels and fed through a sterile environment in which a liquid such as hydrogen peroxide is fed. The sterilizing agent is sterilized by applying the sterilizing agent, and the sterilizing agent is vaporized by subsequent heating and / or by irradiating the packaging material with radiation of an appropriate wavelength and intensity.

More specifically, the web of packaging material is fed by rollers and guide members or similar devices along a predetermined path and is continuously passed through a sterilization unit and a sterilization chamber, where the web is in a sterile air atmosphere. Retained inside. More specifically, in the sterilization chamber, the web of packaging material is fed vertically through a number of successive forming assemblies such that the assemblies act on the web to gradually become a cylinder. Fold it in. The forming assembly generally includes respective roller folding members forming a number of web forcing passages of varying cross-sectional shape from an open C-shape to a substantially circular shape.

The opposing sides of the web are overlapped and heat sealed by interaction with the folding members to form a tube of packaging material.

The tube thus formed is continuously filled with aseptic or sterilized food by a sterilization chamber and a filling conduit that extends partially through the tube, and then between a pair of jaws. It is gripped by the tube to seal it laterally, forming a pillow-shaped pack.

Pillow-shaped packs are separated by cutting at the seals between the packs and then fed to the final folding station and mechanically folded to the final shape.

The sterilization chamber and the filling conduit together form a filling unit for filling the packaging material tube.

The sterilization chamber is conveniently formed in the vertical box structure of the packaging machine, the front wall of which is formed by a fixed intermediate panel for removably mounting the filling conduit, and for cleaning and maintenance. In order to gain access to the interior of the sterilization chamber, top and bottom parts are formed by movable panels or doors.

The mounting position of the filling conduit with respect to the fixed panel of the box structure, and thus the position of the filling conduit with respect to the packaging material tube, is the portion of the filling conduit in which some of the members that interact with the packaging material are inserted inside the packaging material tube. The finished quality of the package is affected because it is carried directly by. Therefore provisions must be made to adjust the position of the filling conduit with respect to the box structure. Currently, this is two plates, one plate screwed to the inwardly fixed panel surface of the voice coil, and integrally connected to the fill conduit, eg welded and adjusted, such as height adjustable legs. Another plate is fixed in a desired position with respect to the other plate by interposing possible positioning means.

In other words, by adjusting the relative position of the two plates, the positioning means need not be adjusted whenever the filling conduit is removed from the box structure,
The filling conduit can be positioned with respect to the plate fixed to the fixing panel and thus with respect to the box structure.

In order to ensure the highest degree of hygiene in the packaging process, the filling conduit must be cleaned frequently, usually on a daily basis, which means that the filling conduit is removed from the box structure and then washed inside. It means to put it back in. The removal and reassembly can only be done from inside the box structure, so if, for example, the screws are removed and the screws of the assembly containing the plate and the filling conduit are removed, a relatively heavy and large assembly from the inside of the sterilization chamber There is a problem that makes it very difficult to remove a solid.

[0014]

SUMMARY OF THE INVENTION It is an object of the invention to provide a filling unit for a machine for the packaging of liquid foods designed to overcome the above mentioned drawbacks.

[0015]

According to the present invention, a box structure is provided through which packaging means for packaging liquid food is fed through, and a box structure for feeding the liquid food to the packaging means. A filling unit of a machine for packaging liquid food products, comprising a filling conduit extending at least partially inside and a releasable attachment means for mounting said filling conduit on a wall of said box structure, said wall comprising at least one. Filling, characterized in that it comprises two removable parts, said removable parts being externally removable, supporting said filling conduit and being fixable to the rest of the wall by said releasable attachment means. Units are provided.

Preferred, non-limiting embodiments of the present invention are described by way of example with reference to the accompanying drawings.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Reference numeral 1 in FIG.
1 shows a packaging machine 1 as a whole for continuously producing a sealed package 2 of liquid food such as HT (ultra high temperature treatment) milk, fruit juice, wine, etc., which is unrolled from a reel 4 and moved. Formed with a web of packaging material 3 fed along P.

More specifically, the web 3 is fed continuously through a known sterilization unit (not shown) and sterilization chamber 6 by means of rollers 5 and guide members or similar devices (not shown), in which the web 3 is fed. The web 3 is kept in a sterile air atmosphere.

The sterilization chamber 6 extends in the vertical direction along the portion P1 of the moving path P and the top portion 7 in which the web 3 is guided along the vertical portion of the moving path P, which is in communication with the sterilizing unit. An existing bottom portion 8 is included.

Inside the bottom portion 8 of the sterilization chamber 6, the web 3 is folded and formed longitudinally so as to form a continuous vertical tube 9 having a longitudinal axis A coaxial with the portion P1 of the path of travel P. Sealed and formed into a number of hermetically sealed packages 10, which are continuously mechanically folded (not shown as they do not form part of the present invention). The completed package 2 is formed.

More specifically, the packaging machine 1 includes a number of well-known molding assemblies, some of which are shown in FIG. 1 and labeled 11 and are associated with the sterilization chamber 6. It is arranged inside the bottom part 8 along the part P1 of the movement path P, interacts with the web 3 and gradually folds the web into a cylinder so that the side edges 3a, 3b on opposite sides of the web 3 overlap. The side edges are then sealed to form the packaging material tube 9.

The tube 9 is continuously filled with aseptic or sterilized food by a filling conduit 12 extending partially inside the sterilization chamber 6 and the tube 9, the food being only partially shown in FIG. Supplied by a well-known filling conduit 14 which is

In the next station 13 of the packaging machine 1 (only shown schematically as it is well known and does not form part of the invention) the tubes 9 are arranged along equally spaced transverse sections. Sealed and cut to pack 1
0 is formed, and the package 2 is formed from the pack.

According to the teachings of the present invention, the sterilization chamber 6 and the filling conduit 12 together form a filling unit 15 for filling the packaging material tube 9.

As shown in FIGS. 1-4, the sterilization chamber 6 includes a rear wall (not shown), a vertical side wall defined by two side walls 18 (only one shown) and a front wall 19. It is formed in a hexahedral box structure or turret.

The front wall 19 is a substantially rectangular intermediate structural panel 20 to which the filling conduit 12 is removably secured,
And two movable panels or doors 21 and 22 (shown schematically in dashed lines in FIGS. 2 and 3) at the top and bottom respectively, the movable panel or door also being square, The respective windows 23, 24, which are similar in shape to the front wall 19, can be closed and opened for access inside the sterilization chamber 6 for cleaning and maintenance.

According to an important concept of the invention, the fastening part 25 is formed with an intermediate opening 26 which at its lower end communicates with a window 24 allowing the filling conduit 12 to be inserted inside the sterilization chamber 6.
And a plate 27 which can be detached from the outside and which supports the filling conduit 12 in a protruding state and which can be detachably connected to the fixing part 25 for closing the opening 26.
The panel 20 is formed by the part indicated by 8.

More specifically, the fixed portion 25 includes the window 23,
It is slightly recessed with respect to the plane of 24 and is connected to the windows 23, 24 respectively by concave edges 30, 31 on opposite sides.
The opening 26 is an elongated inverted U-shaped edge 3 that opens toward the window 24.
2, the edge 32 being two vertical, parallel and straight sides 33 and the side 3 at the opposite end of the window 24.
3 and is formed by a circular end 34 which projects laterally with respect to the side 33.

The filling conduit 12 (FIGS. 1 to 4) comprises a vertical downstream portion 35 which extends inside the sterilization chamber 6 and the packaging material tube 9 in use, and from the plate 27 to the turret 1.
6 includes an upstream portion 36 projecting outwardly and connected to the filling conduit 14, and a curved connecting portion 37 connecting the downstream portion 35 and the upstream portion 36, the connecting portion 37 passing through the plate 27. It extends and is fixed to the plate 27 near the upstream portion 36.

The plate 27 is substantially pentagonal and has an opening 2
6 has a through opening 40 which is sealingly fixed to the fixed portion 25 of the intermediate structural panel 20 and which itself communicates with the opening 26, through which the filling conduit 12 extends. More specifically, the plate 27 is formed with a surface 27a cooperating with the fixed portion 25 of the intermediate structural panel 20, and the surface 27b from which the upstream portion 36 of the filling conduit 12 is projected.
Has been formed.

The opening 40 is substantially the same as the opening 26, and the window 24
The only difference is that the end towards the end is closed, and the opening 40 is formed by an edge 41, which is the same circular first end 42 as the end 34 of the opening 26 and the opening 26. Two straight sides 43 identical to each side 33 of
A curved second connecting to the side 43 at the end facing the window 24
And an end portion 44 thereof. Plate 27 has opening 2
Two fixed seals 25 of the panel 20 are sealed by two cooperating seals 38, 39 having the same shape as the edges 32, 41 of 6, 40 respectively.

The plate 27 is a fixed portion 25 of the panel 20.
When attached to the edges 32,4 of the openings 26,40
The parts 33, 34 and 43, 42 of one cooperate with each other, while the part 44 of the edge 41 is located above the open end of the edge 32. The open end of the opening 26 will be closed at the bottom edge of the plate 27, this edge being overlaid on each side of the edge 31 of the fixed portion 25 of the panel 20 at the opposite lateral edges. It has a convex shape that complements the concave shape of 31.

Edges 3 of the openings 26, 41 and ends 3 of the edges 32, 41
4, 42 are engaged with a portion of a connecting portion 37 having a substantially spherical top outer surface adjacent the upstream portion 36.
More specifically, the aforementioned portion of the connecting portion 37 of the fill conduit 12 is sufficiently loose to allow alignment of the fill conduit 12 with respect to the plate 27, and thus with respect to the sterilization chamber 6, as described in detail below. Opening 40 with width
Is accommodated in the end 42 of the edge 41 of the.

The removable portion 28 of the panel 20 is integrally connected to the upstream portion 36 of the filling conduit 12, for example welded to another plate which can be secured by contacting the surface 46a against the surface 27b of the plate 27. 46 and plate 2
Filling conduit 1 in the relative position of 7,46 and thus in sterilization chamber 6
It further comprises an adjustable positioning means 45 interposed between the plate 27 and the plate 46 to allow the position adjustment of the two.

The adjustment is carried out with respect to a reference point defined by the upper contact area between the spherical outer surface of the filling conduit 12 and the end 42 of the edge 41 of the opening 40 of the plate 27.

More specifically, the plate 46 is substantially square, has a handle 47 on the surface 46b opposite the surface 46a, and has an apex portion through which the upstream portion 36 of the fill conduit 12 extends. Mounted and connected together. The bracket 48 connects the middle portion of the plate 46 to a portion of the downstream portion 35 of the fill conduit 12 near the end of the fill conduit 12 that is inserted inside the packaging material tube 9 in use.

With particular reference to FIGS. 2, 5, 7 and 8, the positioning means 45 project from the plate 46 4.
Included are two height adjustable legs 50, which are placed in close proximity in pairs on opposite sides of plate 46 and are positioned in contact with plate 27.

More specifically, the legs 50 are defined by threaded engagement with respective holes 51 passing through the plate 46,
Each leg has a stem protruding from the plate 46 toward the plate 27 in the direction perpendicular to the plate as an adjustment width. By screwing in or unscrewing the legs 50, the part of the legs projecting from the plate 46 can be adjusted, whereby the plate 4
6 can be tilted with respect to the plane of the plate 27.

The positioning means 45 fixes the relative position of the pin 52 and the hole 53 with the pin 52 protruding at a right angle from the bottom end portion of the plate 27 and loosely screwed into the corresponding hole 53 passing through the plate 46. The angular position of the plate 46 about the plane of the plate 46 and the axis B in a direction orthogonal to the axis A is between the substantially spherical top outer surface of the filling conduit 12 and the end 42 of the edge 41 of the opening 40. Adjustable locking device 54 for locking through the contact area
And (FIG. 4).

More specifically, the plate 46 is penetrated,
Radially extending on opposite diametrical sides of hole 53,
Two screws 5 screwed into the screw holes 56 communicating with
At 5, the locking device 54 is formed.

More specifically, the hole 56 is formed in the bottom end portion of the plate 46 which is narrower than the rest of the plate 46.

The screws 55 are on opposite sides of the pin 52,
It also acts by adjusting the portion of the screw 55 that projects into the hole 53 to allow rotation of the plate 46 about axis B relative to the plate 27.

The pin 52 has a threaded free end that projects from the plate 46 and is screwed into a nut.

A large number of screws 5 projecting from the plate 27, extending loosely through respective holes 59 in the plate 46 and respectively screwed with nuts and lock nuts.
The plate 46 is attached to the plate 27 by 8.

The assembly formed by the fill conduit 12 and the plates 27, 46 (hereinafter assembly 57).
Are disposed on opposite sides of the plate 27 so that the plate 27 can be gripped against the fixed portion 25 of the panel 20.
Turret 1 with two quick-fixing members 60 acting on
It is attached to 6.

Prior to being attached to the turret 16, the plate 27 is positioned on a number of locating members which project at right angles from the fixed portion 25 of the panel 20,
In the illustrated embodiment, this positioning member is located directly above the end of the opening 26 and is screwed into the hole 62 at the top end of the plate 27, and the top pin 61 is arranged on opposite sides of the opening 26. Two lateral pins 63 that engage respective seats (not shown) formed on the surface 27a. Pin 61 preferably has a wide cross-section free end to prevent inadvertent removal of attached removable portion 28 before quick-attachment member 60 is locked.

With particular reference to FIGS. 5 and 6, each quick mount member includes a pin 64 having a free end threaded from a fixed portion 25 of the panel 20 and projecting therefrom.
The plate 2 is rotatably attached to the pin 64 with a bush 66 interposed, and the plate 2 is fixed to the fixed portion 25 of the panel 20.
Eccentric grip projection 67 that grips the associated side edge of 7.
Rotatably mounted to the annular grip member 65 on the opposite side of the pin 64 from which the eccentric grip lug 67 and associated side edges of the plate 27 are secured. And a locking member 68 having an internally threaded cylindrical annular portion 69 that acts to grip against portion 25.

More specifically, the grip member 65 and the lock member 68 are respectively grip rods 70 and 71.
Have.

Each grip projection 67 is removed from the fixed portion 25 of the panel 20 to form a seat with the fixed portion 25 for the associated side edge of the plate 27, and also at the side edge of the plate 27. Cooperates with an associated lateral recess 72 formed in surface 27b of 27.

Each grip member 65 also includes an eccentric release projection 73, which is an eccentric grip projection 67.
The diametrically opposite side of the fixed part 2 of the panel 20
5 is placed in substantial contact with the turret 16 and is inserted between the fixing portion 25 and the surface 27a of the plate 27 when the associated quick-fixing member 60 is released.
To the outside. More specifically, each release protrusion 73
Is tapered towards its free end and is inserted between the fixed part 25 of the panel 20 and the associated lateral recess 74 formed in its face 27a near the side edge of the plate 27.

Each grip member 65 has a grip protrusion 67.
A grip position (FIG. 5) in which it cooperates with an associated recess 72 in the plate 27 and a release position (FIG. 2, FIG. 3 and FIG. 4) can be moved around the associated pin 64. When removing the plate 27, the removable projection 2 is inserted by inserting the release projection 73 between the fixed portion 25 of the panel 20 and the associated recess 74 of the plate 27.
Release or remove 8 from fixed part 25.

In order to allow the interaction of the grip projection 67 with the recess 72 of the plate 27, the plate 46
Each have a lateral recess.

Each quick fixing member 60 has a grip member 65.
A screw member 75 (FIG. 6) threaded through a radial screw hole that receives an end ball (not shown) and a spring (not shown) that biases the ball outwardly. . When the associated grip member 65 is in the release position, the balls in each screw member 75 fit into a groove 76 formed proximate the threaded end of the pin 64 to clearly define the release position.

In actual use, the filling unit 15 includes a moving assembly 57 (removable portion 28 and filling conduit 12).
Assembled in a substantially horizontal direction toward the fixed portion 25 of the panel 20, the filling conduit 12 is inserted through the opening 26 and the window 24, the top pin 61 is inserted into the hole 62 of the plate 27, The pins 63 are engaged with the respective receiving seats of the plate 27. The assembly 57 is supported by the operator by the handle 47 to perform the operations described above. Plate 27 is again plate 27
Once the entire assembly 57 has been attached to the top pin 61 by the operator, the operator releases the handle 47 and operates the quick locking member 60 to move each grip member 65 from the release position with the associated grip rod 70. It can be rotated to the grip position. Accordingly, each grip projection 67 is rotated approximately 180 ° to engage the recess 72 in the plate 27 and grip the associated side edge of the plate 27 against the corresponding edge 32 of the opening 26.

Thereafter, the assembly 57 is locked by rotating the locking member 68 with the respective grip rods 71, and the cylindrical portion 69 is screwed onto the screw end portion of the pin 64 to fix the plate 27 to the fixing portion of the panel 20. Grip 25 more.

The filling unit 15 includes, for example, the filling conduit 12
For quick cleaning, the quick fix member 60 is simply released from the plate 27 and disassembled by removing the assembly 57 held by the handle 47 from the turret 16 in a substantially horizontal direction.

More specifically, each locking member 68 is unscrewed from the associated pin 64 and then the associated grip member 65 is rotated from the grip position to the release position to release the grip projection 67 from the plate 27. , A recess 74 between the plate 27 and the fixed part 25 of the panel 20
The release projection 73 is inserted therein and the plate 27 is lifted. At this point, the handle 47 is gripped to remove the removable portion 28 from the turret 16 and the filling conduit 12 is withdrawn from the sterilization chamber 6 through the opening 26 and the window 24.

Turret 1 to which the filling conduit 12 is attached
The position of the filling conduit 12 with respect to 6 is finally tightly adjusted by adjusting the leg 50 and the screw 55 to adjust the fixed position of the plate 46 with respect to the plate 27. More specifically, the adjustment involves filling conduit 12
To a reference point defined by the upper contact area between the spherical outer surface of the plate 27 and the end 42 of the edge 41 of the opening 40 of the plate 27.

The screwing in and unscrewing of the legs 50 makes it possible to adjust the inclination of the plate 46 with respect to the plate 27, the screw 55 providing the movement of the plate 46 about the axis B in the plane of the plate 46.

The advantages of the filling unit 15 according to the invention will be clear from the above description.

In particular, the removable portion (28) of the wall 19 of the turret 16 to which the filling conduit 12 is attached is removably connected to the rest (25) of the wall 19 by means of an externally manipulable quick locking member 60, The filling conduit 12 can be assembled and disassembled by a worker very easily. Further, because the opening 26 is open toward the window 24, the assembly 57 can be removed substantially horizontally from the assembled position on the turret 16 and thus requires less labor from the operator. There is no need to lift the solid relative to its original position.

However, without departing from the scope of the claims, the filling unit 15 described herein
Clearly, can be varied.

[Brief description of drawings]

1 shows in a perspective view a schematic view of a packaging machine featuring a filling unit according to the invention for producing a hermetically sealed package of liquid foods.

FIG. 2 shows an enlarged exploded view of a filling unit according to the invention in a perspective view.

FIG. 3 shows, in perspective view, an enlarged view of a filling unit according to the invention before assembly.

FIG. 4 shows a side view of the filling unit of FIG.

FIG. 5 shows an enlarged view of the assembly part of the filling unit according to the invention.

FIG. 6 shows an enlarged exploded view of the quick-fixing member of the filling unit according to the invention in a perspective view.

7 shows an enlarged sectional view of a detail of a filling unit according to the invention along the line VII-VII in FIG.

8 shows an enlarged sectional view of a detail of the filling unit according to the invention along the line VIII-VIII in FIG.

[Explanation of symbols]

1 packaging machine 2 Completed package 3 Web 3a, 3b side edges 4 reel 5 rollers 6 sterilization room 7 top part 8 bottom part 9 Packaging machine tubes 10 sealed packages 11 Molding assembly 12 Filling conduit 13 stations 14 Filling conduit 15 Filling unit 16 turrets 18 Side wall 19 front wall 20 panels 21,22 Movable panel or door 23, 24 windows 25 Fixed part 26 openings 27 plates 28 Detachable part 30,31 concave edge 32 edges 33 side 34 round end 35 Downstream part 36 upstream part 37 Connection part 38,39 seals 40 openings 41 Edge 42 Edge 43 side 44 edge 45 Positioning means 46 plates 47 handle 48 bracket 50 legs 51 holes 52 pin 53 holes 54 Locking device 55 screw 56 screw holes 57 Assembly 58 screw 59 holes 60 Quick fixing member 61 top pin 62 holes 63 side pin 64-pin 65 annular grip member 66 Bush 67 Eccentric grip protrusion 68 Lock member 69 Cylindrical part 70,71 Grip rod 73 Eccentricity release protrusion 74 Lateral recess 75 Screw member 76 groove

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Filippo Ferrari             Via Rondelli, Modena, Italy               7 (72) Inventor Paolo Benedetti             Via Malatesta, Modena, Italy               twenty one F-term (reference) 3E050 AA08 AB02 AB08 BA01 BA11                       DC02 FA01 FA10 FB01 FB07                       GC02 JA05                 3E056 AA02 BA01 BA14 HA05

Claims (14)

[Claims] 1. A box structure (16) through which a packaging means (9) for packaging liquid food is fed through, and said box structure (16) for delivering said liquid food to said packaging means (9). ) At least partially extending through the interior of the box structure (16) and a releasable attachment means (60) for mounting the filling conduit (12) to the wall (19) of the box structure (16). A filling unit (15) of a machine (1) for packaging food, said wall (1)
9) comprises at least one removable part (28), said removable part being externally removable, supporting said filling conduit (12) and said releasable attachment means (60). A filling unit, characterized in that it can be fixed to the rest of the wall (19) by means of. 2. The wall (19) comprises a fastening part (25) having a first through opening (26) allowing the insertion and withdrawal of the filling conduit (12) from the box structure (16). , And said first opening (26)
The removable part (28) according to claim 1, characterized in that the removable part (28) comprises at least one first plate (27) which can be externally fixed to the fixed part (25) for closing. unit. 3. A second through opening (40) inside which the filling conduit (12) extends is provided with the first plate (2).
7. A unit according to claim 2, characterized in that 7) has. 4. At least one door (22) closing each window (24) allowing access to the interior of the box structure (16), the wall (19) being below the fixed part (25). Unit according to claim 2 or 3, characterized in that it comprises and that the first opening (26) of the fixing part (25) is open towards the window (24). 5. The fixed portion (25) of the wall (19)
The releasable mounting means comprises gripping means (60) acting on the lateral edge of the first plate to grip the first plate (27) against. Item 4. The unit described in any one of items 4 to 4. 6. The fixed portion (25) of the wall (19)
The gripping means comprises at least two quick mounting mounting means (60) carried by, said mounting means acting on opposite sides of said first plate (27) and each being a rotatable gripping member (65). ) Is included,
The grip member has an eccentric grip portion (67) acting on a side edge of the first plate (27) on the side opposite to the fixed portion (25). The unit that was created. 7. An eccentric release portion (73) at an angle from the grip portion (67) is provided with the grip member (6).
5) each has the eccentric release portion (7) for removing the first plate (27) from the box structure (16) upon removal of the filling conduit (12).
A unit according to claim 6, characterized in that 3) is inserted between the fixed part (25) of the wall (19) and the first plate (27). 8. The fixed portion (25) of the wall (19).
8. A unit according to claim 6 or claim 7, characterized in that each of the grip members (65) is rotationally fixed to a pin (64) projecting outwardly from the unit. 9. Each of said quick mounting attachment means (60) includes a locking member (68) rotationally secured to said grip member (65), said locking member comprising said grip portion (67). 9. Unit according to claim 8, characterized in that it is screwed onto the threaded free end of the pin (64) to enhance the gripping action of (4). 10. The fixed portion (2) of the wall (19).
5) Preliminary positioning means (61, 63) for positioning the first plate (27) on the fixing part (2).
5) A unit as claimed in any one of claims 2 to 9 characterized in that it comprises: 11. The fixed portion (2) of the wall (19).
5. The preliminary positioning means comprises at least one pin (61) projecting from 5) and engaged with an associated seat seat (62) of the first plate (27). The unit described in. 12. The removable portion (28) includes a second plate (46) integrally connected to the filling conduit (12), the second plate being the first and second plates. The first plate (2) is provided on the opposite side of the fixed portion (25) through an adjustable positioning means (45) for adjusting the relative position of (27, 46).
Unit according to any one of claims 2 to 11, characterized in that it can be fixed to 7). 13. A unit as claimed in claim 12, characterized in that the second plate (46) has a grip means (47) for a worker. 14. A unit as claimed in any one of claims 1 to 13, characterized in that the packaging means comprises a packaging material tube (9) in which the filling conduit (12) is inserted. .