JP2008506605A - Equipment for packing groups of goods - Google Patents

Abstract

An apparatus (010) for packing a group of items, in which the items are preferably packs containing respective products, in a special wrapper formed by a plastic film includes elements for supplying groups of items, elements for feeding a wrapping film, and elements for wrapping the group of items in the wrapper. The wrapping elements include members for forming a tubular film (019) for wrapping the group of items, starting with a film being fed and members for inserting a plurality of items in the tunnel forming the tubular film (019) forming members.

Description

The present invention relates to an apparatus for packing a group of items.
Said items are preferably packets each containing a product, which are packaged in a suitable wrapping paper or bag made of a suitable material, in particular preferably a plastic film. It is stuffed.
Said product is preferably a wrapping paper, in particular a toilet roll or kitchen paper or the like, aligned in a suitable or desired arrangement in the package.
However, the device is preferably applied generally in the field of “tissue paper”.

Devices for packing or bagging a group of packets on special wrapping paper formed by plastic film are well known. The known apparatus includes means for supplying a group of items and means for packaging the group of items on a wrapping paper, the means for packaging packaging the group of items from the supplied film. Means for forming a tubular film for the purpose and means for pushing the first and second groups of items into the tubular film in this known machine in such a way that they are spaced apart from each other. To do. The group in the tubular film is fed together with the tubular film by the conveyor belt, the conveyor belt engages the outer surface of the tubular film, and the group of wraps over the entire length of the means for arranging the tubular film. Inserted there.
However, this method of supplying a group of items and a tubular film is too cumbersome and cumbersome and requires a particularly long supply belt provided in the means for forming the tubular film.

Devices for packing groups of items are also well known, and suitable pushers for pushing a single group of items into the tubular film to supply the tubular film and a single group of packets inserted into the tubular film are provided. Used, thus pushing the closed downstream wall of the tubular film, thereby supplying the tubular film.
However, in this type, the closed end wall of the tubular film pushed by the bundle or group of packets is overstressed and can be damaged. Usually, the operating speed of this type of machine is kept relatively low to avoid exposing the film to excessive stress.
However, since the pusher must enter the tubular film to insert the group and push the film to supply it, the pusher must perform an excessively long outward and return stroke. This contributes to excessive deceleration at the operating speed of this type of machine.

  In both devices described above, air accumulates in the tubular packaging film, necessitating the use of additional and bulky means for extracting air from the inside of the tubular film, otherwise the prepared bag is inflated. The wrapping paper inside the wrapping paper is caused by compression of the air trapped between the wall of the group of goods and the closed wall of the opposite wrapping It should also be noted that it may even burst due to pressure.

As a result, an apparatus is provided for packing a group of items in a special wrapping paper obtained from a film or sheet, in particular a film made from plastic material, the items preferably containing the product in each. A device for supplying a group of items and a means for packaging the group of items on a film, the means for packaging the group of items comprising a film in a tubular arrangement. A group comprising means for arranging and means for inserting a group of items into the tubular film, wherein the device is aligned and engaged with each other in the means for arranging the film in a tubular arrangement It has the means for supplying.
In this way, a device that can achieve a relatively high operating speed is obtained.

  The invention also relates to a process for wrapping a group of items with a special wrapping paper obtained from a film or sheet, in particular a film made from a plastic material.

  The technical features and advantageous aspects of the present invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, illustrating by way of example the preferred embodiment of the invention which is provided by way of example only without limiting the scope of the inventive concept It becomes more clear from the description.

In accordance with the present invention, the accompanying drawings show a first preferred embodiment 10 of an apparatus for packing a group of items 12 with a film 16, in particular a special wrapping paper 14 obtained from a film made of plastic material. Illustrate.
The items 18 are preferably wraps each containing a product, which is packed or packaged in a wrapping paper or bag 14.
Each group of items to be packaged generally has a rear cross section 12'b, a front cross section 12'a and a plurality of longitudinal outer surfaces between the rear face 12'b and the front face 12'a. 12′c.
The wrapping paper or bag 14 used to pack the group of items in sequence comprises a front part 14a for packaging the front side of the group of goods, a rear part 14b for packaging the rear side of the group of goods, and a group Intermediate portion 14c for wrapping the outer wall surface in the longitudinal direction.

The apparatus of the first embodiment includes means 20 for sequentially feeding groups of items, means 22 for feeding packaging film, and means for packaging one group of items on the packaging film. .
Downstream of the means for forming the tubular film, there are also means for clamping, sealing and cutting to form a packet containing the respective group of items in the transverse section of the tubular packaging film, The means are generally designated 26.
In particular, the means for wrapping the group of items includes means 23 for arranging the tubular outer film, in other words, means for forming the tubular film, and for inserting the group of items into the tubular film 19. Means 24.
Specifically, as shown in FIG. 1A, the tubular tunnel means for forming a film is formed by a plate folded to have a square cross-section, extending in the longitudinal direction, each delivering an item. , Including a first inner tunnel 27 that opens at the upstream and downstream ends 27a and 27b for delivery.

The means for forming the film tube also has a second outer tunnel 28 extending longitudinally and opening at the upstream and downstream ends 28a and 28b for feeding and feeding the tubular film 19, respectively. Include.
Before the flat film enters the outer tunnel 28 through the front opening 28a at the infeed end 28a, the forming tunnel 28 has a surface for reorienting the flat film into a tubular form.
As illustrated, the means 29 longitudinally seals the overlapping ends of the film after the film has slid into the outer tunnel 28 while being folded to form a suitable tubular film.

Further, as illustrated in FIG. 1A, the downstream end 27 b of the inner tunnel 27 extends beyond the downstream end 28 b of the outer tunnel 28.
However, the dual forming tunnels 27, 28 and the longitudinal sealing means 29 for the film are well known and conventional to those skilled in the art and will be described in detail to simplify this description. Absent. However, other means for preparing the tubular film may be envisioned, for example, in another embodiment a double tubular film forming tunnel could be as illustrated in FIG. As in the embodiment illustrated in FIG. 2, the inner tunnel 27 has an inner peripheral surface 27 ′ and an outer peripheral surface 27 ″. The product packaging film slides outside the outer surface 27 ″ of the inner passage 27. However, the group to be packed is inserted into the tube 27 and the group slides on the inner surface 27 'as in the embodiment illustrated in FIG. 1A.

  The embodiment illustrated in FIG. 4 also, like the embodiment illustrated in FIG. 1A, the infeed end 27a of the inner tunnel 27 extends upstream beyond the infeed end 28a of the outer tunnel 28. Increasingly, an easy alignment of a flat film in tubular form when there is an appropriate and correspondingly changing surface or tab 28 'that enters the outer tunnel 28 via an upstream feed opening 28a. Show as soon as you make it possible.

According to a particularly advantageous aspect, the means 24 for inserting items is adapted to insert a plurality of groups of items into the tubular film, the groups being aligned, and the cross-section of each group being adjacent items. Engage with the cross section of the group. Specifically, the insertion means inserts a group of items into the inner tubular element 27 via its front opening 27a, while the portion of the tubular film used to wrap the corresponding group of items is: It slides on the outer surface of the tubular body 27.
Specifically, in the first embodiment, there are a first group 12a upstream, a second group 12b downstream, and a third group 12c and a fourth group 12d in between.

  The means for inserting the item into the tubular film is advantageously means for pushing the item in such a way that the plurality of items to be inserted engages the rear surface 12'a of the upstream group, Forming means for supplying the tubular film. According to this first preferred embodiment, the action of pushing into a group of aligned items is that the front surface 12'b of the downstream group 12b into the plurality of groups, the closed cross section 14a of the tubular film and Engage and push. In this way, the film is fed forward with the aid of the insertion means without overstressing the transverse wall 14a downstream of the tubular film. Furthermore, the present method for inserting a group of items into the tubular film avoids the presence of air in the tubular film, reduces the stress acting on the downstream film closure, and consequently breaks. Reduce risk and avoid other disadvantages caused by the air in the wrapper.

As illustrated, the pushing means consists of a pusher 30 with alternating forward and backward movements, in a lowered position, with an outward feed portion feeding a group of items forward, and in a raised position. And a portion for returning to a position for receiving the next group of items.
As illustrated, the means for pushing the group of items that have reached the front insertion position into the tubular film remains at the front outside of the tubular film alignment means, thus resulting in a rather short feed stroke. No difference, approximately equal to the length of a single group, which is advantageous with respect to the operating speed of the device.
Illustratively, upstream of the tubular film array tunnel means 27, 28, there is means 32 for supplying the article to a location received by the pushing means for inserting the tubular film into the array tunnel.

The supply means preferably supplies the upstream group of items 12a in and in the direction of the adjacent downstream item group 12c, so that the forming means for the collection of the group of items is arranged in an aligned manner. Are grouped together, engaged with each other and fed or pushed into the tunnel 28 by the pusher 30.
As illustrated, the supply means comprises a conveyor belt 34 on which the items to be supplied are placed.
As a result, the pushing means include a pusher consisting of a plate 30 that traverses the pushing direction, which is supported by a vertical arm 36 that is movable in the vertical direction, and in turn extends longitudinally on the supply belt 34. Supported by a head 38 that slides on a longitudinal member 40.

  According to the preferred preferred embodiment illustrated, the stroke for inserting the group in the tunnel 27 and the return of the means for inserting the group of items in the tubular film are more than the length of the support surface of the supply means 32. small.

  As illustrated, when the indentation is perfect, the insertion means leaves the rear portion 12 "a of the upstream item group intact outside the tubular film alignment means.

  The means 20 for supplying the group of goods is in turn a means 42 for receiving the goods, a means 44 for intermediate storage of the goods, and a means for releasing the group of already formed and separated goods. Including.

The means for receiving the goods, in sequence, from above, contacts and receives the goods 18 and arranges the goods in a position to be received by the next storage means 44 ', described in more detail below. These successive receiving means are also adapted to push the received item forward after they are arranged in the receiving position, for this purpose the means receive the item and simultaneously receive it first. And includes a portion 48 that is adapted to push in an article that has been made and is already positioned forward towards the belt or storage means.
Portion 48 is adapted to receive one item and simultaneously extrude the previously received item forward and comprises a portion comprising an upper surface 48a and a front surface 48b for receiving the item and extending downwardly. Then, starting from the front end portion of the upper surface 48a, the front surface 48b pushes the previous item forward.

As also shown with reference to FIG. 3, there is preferably a first and second portion 48 for alternately receiving items in succession and forcing items received by different portions forward. .
For this purpose, the parts 48, 48 move in a substantially circular path, in other words in a closed rotation path.
Each part 48 also has a plurality of molded elements 49, in the form of brackets, laterally spaced from one another, and in particular, the formed receiving and pressing elements of the portion 48 Is inserted between corresponding protrusions of the storage means 44, which are not illustrated in detail in the accompanying drawings.

The bracket 49 has a trapezoidal outline, extends vertically from the transverse beam 50, is movable on vertical guide rods 52, 54 supported by a support block 56, and in turn, longitudinal rods 58, 60. As a result, the parts can take a closed path that places the same parts in a position to receive the goods at predetermined time intervals.
Specifically, each beam 50 extends from the guide and support means in a cantilever fashion and is disposed on each side of the machine, with the guide and support means for another beam 50 on the opposite side. Is placed.

  Each part is moved along the path of rotation by a respective rotating chain, each part is connected at the appropriate point on the side, and the other part is connected to its respective chain 55, 55 on the opposite side. Is done. The component drive chains 55, 55 are sequentially driven by a motor 57, only one is illustrated in the accompanying drawings.

As illustrated, the intermediate storage means 44 for items includes a lower item support conveyor belt 44 ′ and at least one item upper supply belt 62.
In the storage means there is also an article compaction or side consolidation means 64.

The means 46 for discharging already formed and remote groups of items includes a supply means consisting of a conveyor belt 34 for supplying the items and means 66 for stopping the supply of the items, so that the items Is released in such a way as to allow the release of a group of a predetermined number of items.
The means for stopping the supply of goods includes a plate 66 that is movable between a low position where the goods are engaged and stopped and a high position where groups of goods can pass freely.

There are also advantageous means for spacing or separating groups of packed items.
In particular, in the plurality of items inserted into the packaging tunnels 27, 28, the means for spacing conveniently separates the group of downstream items from the upstream group adjacent to the downstream group.
As illustrated, the means for separating the group of downstream items from the upstream group adjacent to the downstream group is conveniently and preferably disposed downstream of the tubular film arrangement means downstream, It is operated in such a way that the downstream group is spaced from the upstream adjacent group to the extent that it is possible to close the rear part of the packet and simultaneously close the front part of the upstream adjacent packet. The However, according to another embodiment, the means for separating the group of downstream items from the upstream group adjacent to said group of downstream items is in particular those parts covered by the means for producing the tubular film. Would be placed at the end of the means.
In particular, means for separating the group of downstream items from the group of upstream items adjacent to the downstream group may be grouped by a distance that is substantially dependent on the size of the bag in the current bag being packed. Isolate.

The separating means advantageously comprises means for engaging and supplying a front portion of a tubular film that wraps around the group of downstream items, in particular, a tube that wraps around the group of downstream items. Engage with the front of the film.
Specifically, there are means for engaging the tubular film with the upstream group and means for moving the engaging means.
As illustrated, the engagement means comprises at least first and second conveyor belts 72 and 74, which face each other in the vertical direction, have longitudinal engagement portions 72a and 74a, and extend in the horizontal direction. Exists.

The cutting means consists of facing blades 76, 76, internal clamping and sealing plates 78, 78 in a manner well known to those skilled in the art.
In practice, suitable drive means bring opposing plates and blades that face each other to seal the packet and cut it from the tubular film.
Advantageously, means for cutting and sealing and means for separating or spacing are supported on a single frame 80 and move longitudinally back and forth.

For this purpose, there is a longitudinal drive means including a belt 82, which moves back and forth, is connected to the frame 80 to function properly, slides along a suitable longitudinal guide, Not illustrated.
Specifically, the belt 82 extends below a support surface 84 downstream of the tubular film alignment means.

There are means for engaging and releasing the separating means, each moving the engaging means in contact with the tubular film and each moving the engaging means away from the tubular film.
The engagement elements are supported by respective support frames 86, 86 and are vertically movable by pneumatic actuators and are not illustrated in the accompanying drawings.

  There are also means for removing the packet formed downstream of the means for sealing and cutting. These means for removing the packet consist of a group of adjacent upstream items and push against the already packed group. As a result, gravity causes the already packed group to slide with a plurality of aligned rollers 85 supported on the conveyor 84 and turning downwards.

In short, the device operates as follows.
As illustrated in FIG. 1A, the group of items 12a discharged upstream is conveyed by the conveyor 32 to a position where the insertion means 24 begins to push, preferably the front side of said group is its adjacent downstream group. It will be in the state leaning also on the rear surface of the goods of 12c.
At this point, the pusher 30 is lowered and engages the rear face of the upstream group and, as illustrated in FIG. 1A, the rear part 12c of the adjacent upstream group and the front part 12a of the upstream group entering the tunnel 28. And the plurality of groups are extruded forward so that the tubular film is fed forward. As illustrated in FIG. 1A, during this phase, the vertically facing sealing and cutting plates 76, 78 are vertically closed from each other and vertically spaced from each other for sealing and cutting. Between the open positions, it is moved by the corresponding vertical belt 73 and back towards the open position to allow a free passage between the next group of items.
At the same time, the front group 12b of the downstream group emerges from the rear end 27b of the wrapping tunnel 27, 28, while the engagement means 72, 74 are in the unengaged state as illustrated in FIG. 1B The rear end of the tunnel is approached and a single support frame 80 approximately reaches the rear delivery 27b of the forming tunnel 27 as illustrated in FIG. 1C.
In this position, the engagement belts 72, 74 engage the outer surface of the tubular film and the downstream group 12b housed in this longitudinal position of the tubular film, and as illustrated in FIG. 1D, the downstream group Rotate to unload with 12b.

The separating means is operated by pushing the tubular film 19 and the group of downstream items, while the group of upstream items remains in the inner tubular body 27.
For this purpose, the belts 72 and 74 engage the tubular film and the front of the downstream group 12b and move longitudinally by the forward movement of the support frame 80, as shown in FIG. 1E.
Specifically, the means for longitudinal movement of the engagement means 72, 74 moves the engagement means forward and away from the downstream end 27b of the means for vertical production of the tubular film, As illustrated in FIG. 1F, the rear surface of the adjacent upstream group 12d and the downstream group 12b is to be spaced.
As illustrated in FIG. 1F, in this state, the pusher 30 is raised to return to the rear, and in the raised state, the pusher 30 moves toward a position where pushing is started.

  These means 80 for longitudinal movement of the engagement means for the previous group move away from the tubular film alignment means 27, 28 by part or stroke, as illustrated in FIG. Suitable for spacing the rear face of the downstream group from its adjacent upstream group, the downstream end of the tubular film can be clamped, sealed and cut.

As illustrated in FIG. 1G, with the support frame 80 spaced apart, the clamping jaws of the upper and lower portions 76, 78, respectively, support and seal the cutting means and approach each other. Start to move. During this phase, the film and article group 12b downstream of the sealing and cutting means 76, 78 is stopped and stationary by the engaging means 72, 74, while the adjacent upstream group is downstream of it. At the end 27b of the frame, the film is stationary and supported by the inner surface of the tunnel 27, and the film has a rear surface of the wrapping paper for the group 12b and a front surface or a downstream surface forming a surface 14a that engages and feeds the tubular film. Released to form.
Once the jaws 76, 78 are brought together, the film is sealed and cut in the central region of the transverse sealing region, as illustrated in FIG. 1H.

As illustrated, the means for cutting and sealing is activated, while the tubular film and the group inserted therein are stationary, as illustrated in FIG. 1H.
While sealing and cutting is taking place, the supply means 32 is brought into contact with the stationary group 12 and withdrawing the upstream new group of items 12 partially from the tunnel 27, as illustrated in FIG. The jaws 76 and 78 to be sealed and cut are opened and returned to the non-operating position. FIG. 1I shows that even before the upstream group partially exits the tunnel and contacts the next group, the pusher 30 moves to press the rear face of the new upstream group 12 against the multiple groups to be supplied. As soon as it does.
In this regard, it is repeated as illustrated in FIG. 1A above.

  There are means for supplying the packaging film, including a reel 22 that supports the film. There are also means for rotating the reel, including a roller 22a for rotating the reel driven by a motor 22b.

The means for driving the flat film includes control means, not shown, in the form of mechanical control means to form means for controlled film ejection.
Prior to reaching the tunnel feed, the film 16 is returned by various return means, particularly means in the form of rollers, and is supplied by a pair of supply rollers 22e. Specifically, there is a movable return roller 22d that forms a counterweight to maintain film tension during the various acceleration and deceleration stages of film supply. The counterweight roller 22d has a return portion and an end that are movable within the contact points of the central film 16 and the respective vertical guides. This motor driven rewind assembly can rewind the film from the reel, which releases the film at an almost constant speed. The acceleration and deceleration experienced by the film is controlled by a roller mechanism downstream of the reel.
Specifically, in the first stage, the flat film supply means 22e is a film forming means, in other words, in the inner tubular body 27, at a predetermined speed (V1) equal to the supply speed of the group of items. Are to be released. The film released during this stage forms the side walls of the bag or the top, bottom and side walls of the bag.

  In the second stage, the flat film supply means 22e discharges the film at a predetermined speed (V2) higher than the predetermined supply speed (V1) of the film, and is equal to the translation speed of the sealing means. The film released during this stage forms part of the end wall of the bag. Further, the amount of film released during this stage is sufficient to form the desired wrapping or adherence of wrapping paper for each group of products.

  In the third stage, the flat film supply means 22e discharges the film at a predetermined rate (V3) equal to the closing speed of the sealing means. The film released during this stage forms the remainder of the back end wall of the bag and provides the front wall of the bag for the next group of items.

  The flat film supply means 22e is also adapted to release the film at a predetermined rate (V0), in particular equal to the state in which the film discharge has stopped, so that the downstream group The transverse part separating from the group is sealed and cut.

As illustrated in the accompanying drawings, a bundle or group to be packed typically includes a plurality of packets arranged and arranged in various longitudinal rows that are parallel to each other.
5A and 5B illustrate a second preferred embodiment 010 of an apparatus for packing groups of items with special wrapping paper made from film.

The product is preferably a package for storing the product in each, and is packed or packed with a wrapping paper or a bag.
Said product is preferably a roll, in particular a toilet or kitchen paper or such roll.

The device extends longitudinally and includes a plurality of consecutive operating units.
Specifically, the apparatus includes a unit 010a for receiving items upstream, which may optionally be attached to a diverter for dispensing items in a plurality of predetermined rows.

  Adjacent downstream of the unit 010a for receiving items is a unit 010b for forming a plurality of items or groups of items to be inserted into a wrapping paper or bag. However, this unit is described in more detail below.

Downstream of the unit 010b for forming or preparing the group or bundle to be packaged, there is a unit 010c for wrapping around the group or bundle to be packed with wrapping paper, the group supply unit 010c ′ and the actual Unit 010 ″ c for packaging.
Once the wrapping paper has wrapped around the part of the item to be packed, it is spliced, in particular sealed, and then cut and lowered by the downstream unit 010d.

  There may be suitable units for arranging the items to be packed at multiple levels, in particular at least at the first and second levels. In fact, at the tip of the device, multiple rows of items will be placed side-by-side to form the lower level, and similar multiple rows of items will be placed to form the upper level.

As shown in the drawings, in particular in connection with FIG. 6 in a side perspective view, each group of items 012 to be packed is placed side by side in two or more rows (only one row is shown in FIG. The rear or upstream cross section 012'b, the front or downstream cross section 012'a, and the rear surface 012'b and the front surface 012 as a whole. with a plurality of longitudinal peripheral surfaces 012'c between 'a, upper peripheral surface 0112'c, lower peripheral surface 0212'c, and facing each other (only one named 0312 'c includes the perimeter of the first and second sides (illustrated in FIG. 6).
As illustrated by the dashed lines in FIG. 6, the wrapping paper or bag 014 for packing a group of items is in turn a front or downstream portion 014a for packing the front side of the group of items, the same group of items. It includes a rear or upstream portion 014b for wrapping the rear surface and an intermediate peripheral portion 014c for wrapping the same group of longitudinal peripheral walls.

As can be seen with respect to 5A and 5B above, the means for forming a group of items may optionally include an arm B for the supply and lateral distribution of the items, which includes the supply means 043 for the items. In order to distribute the goods in two or more longitudinal rows on the forming conveyor belt, they are reciprocated in the horizontal direction.
In the form of each conveyor belt, there is also an additional supply means 045 for the group of items downstream of the means 043. This conveyor belt 045, together with the previous conveyor belt 043, forms an intermediate storage means for goods.
There are also means for consolidating or compacting the sides of the item, which are not illustrated in detail in the intermediate storage means 045 in the accompanying drawings.

  As clearly illustrated in FIG. 7, the means 010b for forming a group of items to be packed are in the form of a conveyor belt and act on the respective supply means 044 of the predetermined and isolated said items. Included are means 046 for releasing the group, and upstream of these there is means 047 for holding and stopping the line of items placed side by side.

Indeed, the means 046 for releasing a predetermined and isolated group of items includes means for engaging the front or downstream surface of the side-by-side line of items, said means for engaging Consists of a transverse bar or barrier 049 that is movable between a position that engages the front of a group of items fed forward and a position through which the items can pass freely.
Actually, the engaging means 049 is supported by vertical plates 051 and 053 facing each other of the supporting frame, and on the inner surface, each guide member is fixed to correspond to the sliding side end of the barrier. . In FIG. 7, the only guide member 055 and the associated end 057 of the barrier 049 can be seen, the latter being slidably incorporated into the guide member 055.
The engaging means 049 can be moved between a low position that prevents the supply of goods and a higher position.

  The side guide 055 for the end 057 of the means for engaging the front of the row of goods has a straight profile and extends forward and at an angle so that the barrier is Pulled forward, along with longitudinal moving components, so that the front of the item is not blocked or damaged.

As shown in FIG. 7, the product holding means 047 is located upstream of the discharge means 046 and the group of goods to be packaged when the means 046 or the barrier 049 is in an open position allowing the goods to pass freely. Items that must not be part are operated in a way that stops the supply of items so as to guarantee continuation of the stop, for this reason the distance between the upstream holding means 047 and the downstream opening means 046 is Appropriately defined to obtain the desired length of the group to be packed.
These upstream holding means 047 act on the vertically-facing side of the item and include a lower engaging means 047a, the engaging means extending in the lateral direction in the form of a comb element, It comes in contact with the lower surface.

The holding means also includes facing means 47b, the facing means being in the form of a plurality of surfaces or thin plates spaced apart from one another in the lateral direction and in contact with the top surface of the item.
In fact, the drive means, preferably consisting of actuator 047c, is in particular in the form of a pneumatic cylinder and engages and releases the item, preventing the supply of the item and allowing the supply of the item.
In particular, the actuator 047c acts on a transverse member 047d that is integrated with one end of the comb portion 047a, and the other longitudinal end portion of the comb portion is integrated with the end portion of the supply means 044. Lifts it up to push the item against the upper engagement surface 047b supported by means comprising springs 047e.

As shown in FIG. 7, the plate 047'a has a slot where the comb element 047a is suitably hinged to the machine frame and slides.
In fact, this plate 047'a functions as a support plate for the item and comprises downwardly protruding comb-element teeth, each retracted with respect to the support surface of plate 047 as required, each engaged with the item. Release the goods.

  When the means 049 for stopping the supply of goods is opened, the conveyor belt 044 supplies a group of a given quantity of said goods towards the packing area.

  With respect to means 010c for wrapping a group of items, FIGS. 8 and 10A show that these means insert a group of items into the tunnel means 023 and tubular film 019, in other words, to arrange the films in a tubular form. Including the means 024 of FIG.

Specifically, as shown in FIG. 5A, tubular tunnel means 023 for forming a film includes a first inner tunnel 027 formed by a plate folded to have a quadrilateral cross-sectional area, Extending in the direction, the upstream and downstream ends 027a and 027b are open for delivery and delivery of goods, respectively.
The means for forming the film tube also includes a second outer tunnel 028, extending longitudinally and opening at upstream and downstream ends 028a and 028b, respectively, for feeding for the tubular film 019 and Sending out.
At the infeed end 028a, the forming tunnel 028 has a surface for reorienting the flat film into the tubular form before entering the outer tunnel 028 via the front opening 028a.
As illustrated, the film slides in the external path 028, while the means 029 seals longitudinally the end where the films overlap after being folded to form the tubular film.
As illustrated, the downstream end 027b of the inner tunnel 027 extends beyond the downstream end 028a of the outer tunnel 028.
The front of the double forming tunnels 027, 028 and the longitudinal sealing means 029 for the film are conventional and well known to those skilled in the art and will be described in detail for the sake of brevity. It is not done. Other methods for forming the tubular film may also be envisioned.

As illustrated in FIG. 8, the inner tunnel 027 has an inner peripheral surface 027 ′ and an outer peripheral surface 027 ″.
The film 019 wrapping the product slides on the outside along the outer surface 027 "of the outer tunnel 027, while the group to be packed is inserted into the inner tunnel 027 and slides on its inner surface 027 '.
The accompanying drawings also reveal that the infeed end 027a of the inner tunnel 027 extends upstream beyond the infeed end 028a of the outer tunnel 028. Moreover, in conventional methods in the field, there are suitable associated diverting surfaces or tabs, which are well known in the field and need not be illustrated in detail in the accompanying drawings, via the upstream feed opening 028a, When entering the outer tunnel 028, it allows easy alignment of flat films in tubular form.

In a particularly advantageous manner, the means 024 for inserting items is adapted to insert a plurality of groups of items into the tubular film, wherein the groups are aligned and the cross section of each group is longitudinally adjacent. Engage with the cross section of the group of items to be engaged.
Specifically, the insertion means inserts a group of items into the inner tubular element 027 via the front opening 027a, while the portion of the tubular film used to wrap the corresponding group of items is this tubular. Slide on the outer surface of the main body 027.

Specifically, in the second embodiment, there are an upstream first group 012a, a downstream second group 012b, and intermediate third and fourth groups 012c and 012d.
In fact, there is an advantageous collection of groups within the packaging tunnel, and an advantageous product can be produced.

  The means for inserting the item into the tubular film is advantageously a pushing means for the item, which is adapted to engage the rear face 012'a of the upstream group in the plurality of items to be inserted, Forming means for supplying the tubular film. In accordance with this second preferred embodiment, the pushing action of the aligned plurality of items into the group causes the front surface 012'b of the downstream group 012b of the plurality of groups to close the tubular film as shown in detail in FIG. 10A. Engage and push into the cross section 014a. In this way, the film can be fed forward with the aid of insertion means without applying excessive stress to the transverse wall 014a downstream of the tubular film. Furthermore, the present means for inserting a group of items into the tubular film avoids the presence of undesired air in the tubular film and reduces the stress acting on the downstream film closure, and thus results. Reduce the risk of breakage and other inconveniences caused by the air in the wrapping paper.

  As illustrated, the pushing means consists of pushers 30 that alternately move forward and backward, receiving an outward feed portion that feeds a group of items forward at a lower position, and a next group of items, And a portion for returning to the lifting position.

As illustrated, the means 30 for pushing a group of items into the tubular film has reached the front insertion position and remains in front of the outside of the tubular film alignment means, so rather a short feed The stroke is no different and is approximately equal to the length of a single group, which is advantageous in the operating speed of the device. However, in an alternative embodiment, the pushing means 030 may enter the packaging tunnel.
However, the stroke of the push-in means 030, in particular the end position of the push-in stroke, may vary depending on the length of the item or package.

  As illustrated, upstream of the tubular film production tunnel means 027, 028 is means 044 for supplying the goods at a location received by the means for pushing the goods into the tubular film alignment tunnel.

  The feeding means preferably feeds the upstream group of goods 012a in the direction of and adjacent to the adjacent downstream group of goods 012c, thus forming a means for accumulation of the group of goods, by the pusher 30. Create a group of items that are aligned and engaged with each other to be fed or pushed into the tunnel 028.

  As illustrated, the pushing means, as a result, preferably include a pusher consisting of a plate 30 that intersects the direction of extrusion and is supported by a vertically moving vertical arm 038 and, in turn, on a longitudinal member 040. Supported by a sliding head 038 and extends longitudinally on a supply belt 044.

According to the illustrated preferred second preferred embodiment, the stroke for inserting the group into the tunnel 027 and the return of the means for inserting the group of items into the tubular film are smaller than the length of the support surface 044 of the supply means. .
As indicated, advantageously and preferably, when the indentation of the insertion is complete, the insertion means leaves the rear portion 012 "a of the upstream group of items outside the tubular film alignment means.
Specifically, the pusher 030 has a central portion 030a and two side tabs 030b and 030c. The support mechanisms 030d and 030e for the tabs 030b and 030c in the central portion 030a include a device (not illustrated in detail, which may be of any suitable type usable by those skilled in the art) The tabs 030b and 030c can be dissociated when the thrust applied to the group of items reaches a predetermined limit value. In this way, it is possible to prevent the product or other items from being subjected to harmful thrust when the item is clogged.

As also shown in FIG. 8, preferably, but not exclusively, means for arranging or supplying groups of tubular films in a grouped manner in a tubular film arrangement or manufacturing means are advantageously provided. is there.
The supply means comprises means for supplying goods and a tubular film, and stores them in a region extending in the longitudinal direction up to the tubular film production tunnel 027.
The article and tubular film supply means includes a plurality of upper and lower supply belts 0113 and 0115, respectively.
These supply belts are advantageously arranged at the end of the forming tunnel or downstream.
There are advantageous means for rotationally driving the supply belt and means for moving the supply belt in the direction of and away from the tubular film and group contained therein. Means for moving the supply belt in the direction of and away from the film and group with a vertical movement are not illustrated in detail in the accompanying drawings.

Supply belts 0113 and 0115 internally extend from the downstream end of the tunnel covering a predetermined area suitable for engaging a predetermined quantity of groups of items.
Specifically, the plurality of upper supply belts 0113 engage with the upper surface of the tubular film and the group inserted into the longitudinal portion of the tubular film, and the front or downstream opening of the upper wall of the inner tunnel 027. Pass through part 027c.
Specifically, the plurality of lower supply belts 0115 engage the upper surface of the tubular film and the group inserted into the longitudinal portion of the tubular film and correspond to the front or downstream portion of the lower wall of the inner tunnel 027. Through the opening or slit 027d.

There is also a means 027e for supporting the group in the disengaged state.
Specifically, there are a plurality of protrusions 027e that extend downstream from an intermediate end 027f of the base of the tunnel 027, in which slits 027d are made in the lateral direction.
In practice, the supply belt 0115 extends when engaged with the lower surface of the group of tubular films and articles, and a corresponding longitudinal portion of the tubular film that slides below the lower surface of the protrusion 027e; Alternatively, after engaging with the elongated piece, it contacts the lower surface of each article beyond the upper surface 027g of the protrusion 027e protruding from the longitudinal opening 027d. On the other hand, when the belt 0115 is retracted in the vertical direction, the lower surface of the group of tubular films and articles is disengaged, and the belt returns downward through the slit and moves to a position below the protrusion 027e. The lower surface of the group of items is placed on the upper surface 027g of the protrusion. In the latter operating condition, the lower surface of the tubular film is free to slide under the protrusion 027e.

Obviously, in the first part, the group of goods is fed to the packaging tunnel and inserted by the pushing means 030 by the thrust applied by the group of upstream goods, while in the second part, the goods are belted. It is supplied to the tunnel by the operation of 0113 and 0115.
This prevents crushing of the product. There is no resistance to insertion by the pushing means 030.

There are also advantageous means for spacing or separating groups of packed items.
In particular, the spacing means advantageously separates a group of downstream items from a group of upstream items adjacent to the downstream group in a plurality of items inserted into the packaging tunnels 027, 028.

As illustrated, the means for separating the group of downstream items from the upstream group adjacent to the downstream group is advantageously located outside and downstream of the tubular film alignment means, and is located at the rear of the downstream packet. The downstream group 012b is operated to be spaced from the adjacent upstream group 012d to the extent that allows the closure of the front of the adjacent upstream packet simultaneously with the closure.
Specifically, the means for spacing the group of downstream items from the group of upstream items adjacent to the downstream group separates the group by an interval depending on the size of the package packed at that time. To do.

The separating means advantageously comprises means for engaging and feeding the front surface of the tubular film that wraps around the group of downstream items, in particular, the front surface of the tubular film that wraps around the group of downstream items. Engage with.
Specifically, there are means for engaging the tubular film and the upstream group and means for moving the engaging means.

As illustrated, the engagement means comprises at least first and second conveyor belts 072 and 074, facing each other in the vertical direction, having longitudinal engagement portions 072a, 074a, and extending in the horizontal direction. Exists.
Specifically, as illustrated, the engagement means comprises a plurality of first conveyor belts 072 and a plurality of second conveyor belts 074 that face each other in the vertical direction, each of which is a longitudinal engagement portion 072a. , 074a and extending in the horizontal direction.

As also shown in FIGS. 10B and 10C, in the tubular film manufacturing means, there is also means 0119 for stopping the group supply into the tubular film in a grouped state.
These means for stopping the supply into the tunnel extend inside the tubular film 019, engage the front side of the group of items 012d and separate from the downstream group 012b to be packed.
These stop means 0119 consist of a longitudinally extending element 0119a, with a transverse member 0119b not illustrated in detail at the downstream end, adapted to engage the upper part of the group of packets 012c. Yes.
Longitudinal element 0119a pivots upstream 0119c upstream of longitudinal sealing means 029, and its upstream end 0119e uses a corresponding drive means comprising an actuator, in particular pneumatic cylinder 0119f, to group 012d. Operate by engaging and releasing.
Indeed, the stop means 0119 holds the group of items when operating to separate the group of downstream items to close and cut each bag.

At the downstream end of the tunnel 027 there are advantageous means for exchanging air with the inside of the tubular film.
These air exchange means comprise means for jetting air flow inside the tubular film and prevent any vacuum conditions that may be created by the group 012b of downstream items separating from the group 012d. It is like that.
The inside of the tubular film and these means for air exchange consist of small perforated tubes, with a plurality of distributed openings, for stopping the upstream group adjacent to the group 012b to be separated. Extending along the cross member 0119b of the means. A similar small perforated tube having a plurality of distributed openings extends downward at the end 0127 of the tunnel 027. These small perforated tubes for exchanging air with the inside of the tubular film are not illustrated in detail in the accompanying drawings.
The means for exchanging air with the inside of the tubular film may also include a plurality of small perforated tubes longitudinally spaced from one another.

The cutting means consists of facing blades 077,077 inside the plates 078,078 for tight sealing in a manner well known to those skilled in the art.
In practice, suitable drive means move the opposing plates and blades towards each other to seal the packet from the tubular film and cut it.
Advantageously, the means for cutting and sealing and the means for separating and spacing are supported on a single frame 80 and move back and forth in the longitudinal direction.

For this purpose, there is a longitudinal drive means including a belt 082, which moves back and forth and is connected to the frame 080 so as to function properly and is represented by a suitable longitudinal side guide, which is illustrated solely by the reference numeral 079 in FIG. Slide along.
Specifically, the belt 082 extends below the support surface 084 of the tubular film arrangement means.

There are means 087 for engaging and releasing the separating means, moving the engaging means in contact with the tubular film, and each moving the engaging means away from the tubular film.
The engagement elements are supported by respective support frames 086, 086 and can move in the vertical direction when respective actuators not illustrated in the accompanying drawings are actuated.

  There are also means for removing the formed packet, downstream of the means for sealing and cutting. These means for removing the packet consist of a group of adjacent upstream items and push the already packed group. As a result, the group already packed with gravity is slid on a plurality of aligned rollers supported by the conveyor 084 and bent downward.

In short, the apparatus is operated as follows.
The group of items 012a discharged upstream is conveyed by the conveyor 044 to a position where the insertion means 030 begins to push.
During this phase, the vertically facing sealing and cutting plates 078, 078 moved between a vertically closed position for sealing and cutting and a position spaced apart from each other in the vertical direction are: Back in the direction of the open position, as illustrated in FIG. 10A, it becomes the free path for the next group of items until they reach it.
At this point, pusher 030 engages the rear surface of upstream group 012a and pushes it against and pushes adjacent downstream group 012c, as illustrated in FIG. 10A, and thus adjacent downstream group into the tunnel. Extrude 012c forward. During this phase, the supply belt in the tunnel supplies the downstream items group 012b, 012d forward, and as soon as the group 012c reaches the area occupied by it, the group 012c also moves forward. To be supplied.
Pushed by the belts 0113, 0115, where the front of the downstream group 012b exits from the rear end 027b of the packaging tunnel, while the engagement means 072, 074 in the opened state, the rear end of the tunnel As shown in FIG. 10B, the single support frame 080 substantially reaches the rear delivery portion 027b of the forming tunnels 027, 028 until the engagement means reaches it.
In this position, the engagement belts 072, 074 engage the outer surface of the tubular film and the downstream group 012b housed in the longitudinal portion of the tubular film, and as illustrated in FIG. 10B, Rotate outside with group 012b.
In the open state where the goods are not fed and the tubular film is free to slide forward, the separating means is operated by pulling the tubular film 019 and the group of downstream goods with the feeding belt in the tunnel, while The group of upstream items remains in the inner tubular body 027.
In this state, the element 0119 for engaging and stopping with the adjacent upstream group operates to provide said stop action for the adjacent upstream group. Further, in this state, the air exchange means operates to supply the proper pressure upstream of the downstream group 012b film.
For this, the belts 072, 074, which engage the tubular film and the front of the downstream group 012b, rotate and are also moved longitudinally by the forward movement of the support frame 080 along the side guides 079. It is.
Specifically, the means for longitudinal movement of the engagement means 072, 074 moves the engagement means forward as illustrated in FIG. 10B, and its adjacent upstream group 012d and downstream group 012b. Moves away from the downstream end 027b of the array or manufacturing means of the tubular film so that the rear surfaces are spaced apart.
As a result, the closing distance between the downstream group 012b and the adjacent upstream group 012d is obtained by the combined effect of the translation of the carriage 080 and the rotation of the belts 072, 074.

  These means 080 for longitudinal movement of the engaging means for the front group move away from the tubular film alignment means 027, 028 by section or stroke, as illustrated in FIG. Is suitable for spacing the rear face of the group from its adjacent upstream group, and the downstream end of the tubular film can be clamped, sealed and cut.

As illustrated in FIG. 10c, in this condition with spaced support frames 080, the clamping jaws with the upper part 078 and the lower part 078, respectively, support the cutting means and seal. And begin to move closer together. During this phase, the film and article group 012b downstream of the sealing and cutting means 078, 078 is stopped by the engaging means 072, 074 and remains stationary, while the adjacent upstream group is At its downstream end 027b, it rests on the inner surface of the tunnel 27, is supported and braked or stopped, the film engages the rear surface of the wrapping paper for group 012b and the tubular film Released to form the front surface or downstream surface forming the supply surface 014a.
Once the jaws 078 are mated, the film is sealed and cut in the central region of the transverse sealing region as illustrated in FIG. 10C.
As illustrated, the means for cutting and sealing is operated while the tubular film and group inserted therein are stationary.

While sealing and cutting is taking place, the feeding means brings a new group of items 012 upstream to the position for delivery to the pushing means.
As a result, while the sealing and cutting jaws 078, 078 are unfolded and returned to the non-operating position, the pusher means 030 moves the group of new items inserted at the front of the tunnel into the adjacent downstream item. Engage with group.
At this point, repetition continues as described above.

  As indicated, each operating cycle of the supply means 0113, 0115 in the tubular film production tunnel causes the group to be fed forward in a portion equal to the length of the group of items to be packed.

  There are means for supplying the packaging film, including film support reel 022. For this purpose, suitable means for rotationally driving the reels can also be provided, including a roller that rotates each reel driven by a motor, which is illustrated in the accompanying drawings. Absent.

  The means for driving the flat film also includes control means in the form of mechanical control means, not illustrated, to form means for controlled film ejection.

Prior to reaching the tunnel infeed, the film 019 is returned by various return means, in particular by means of a roller shape, and is supplied by a pair of supply rollers, not illustrated in the accompanying drawings. . In addition, there is a movable return roller that forms a counterweight to maintain film tension during the various acceleration and deceleration phases that supply the film. The counterweight roller has a central film 019 contact and return portion and end, each movable within a vertical guide. This motor driven rewind assembly can rewind the film from reel 022, which releases the film at an almost constant speed. The acceleration and deceleration applied to the film is controlled by a roller mechanism downstream of the reel 022.
Specifically, in the first stage, the flat film supply means is at a predetermined speed (V1) equal to the speed of supplying the group of items inside the film forming means, in other words, inside the inner tubular body. Release the film. The film released during this stage forms the side walls of the bag or the top, bottom and side walls of the bag.

  In the second stage, the flat film supply means is adapted to release the film at a predetermined speed (V2) different from the predetermined film supply speed (V1), the translation speed of the means for sealing and the belt 072. And the sum of the speeds imparted to the film 19 by 074 rotations. The film released during this stage forms part of the end wall of the bag. Further, the amount of film released during this stage is sufficient to form the desired wrapping or adherence of the wrapper for each group of products.

  In the third stage, the flat film supply means discharges the film at a predetermined rate (V3) equal to the closing speed of the sealing means. The film released during this stage forms the remainder of the back end wall of the bag and provides the front wall of the bag for the next group of items.

  The flat film supply means is also adapted to release the film at a predetermined rate (V0), in particular at a predetermined rate (V0) equal to the state in which the release of the film is stopped, so that The transverse section separating the downstream group from the next group is sealed and cut.

  As illustrated in the accompanying drawings, a bundle or group to be packed typically includes a plurality of packets arranged in various longitudinal rows that are aligned and parallel to each other. Specifically, three rows of packets are used to produce the illustrated group.

  The packaging tunnels 027, 028 may advantageously be adjustable in width and / or height, or may be used appropriately depending on the respective lateral size of the group of items to be packed. There may be a plurality of packaging tunnels 027, 028.

In another embodiment of the present invention, the film supply means consists of a single indentation means 024, indenting a group of items, at least downstream of both the means for forming the tubular film or the initial delivery from the tunnel 024 The front side of the downstream group is pushed into the closed end of the tubular film until the end of the downstream group is received for forward feeding by the downstream feeding means or rollers 072,074.
Actually, in the latter embodiment, the supply rollers 0113 and 0115 operated in the tunnel portion may be omitted. The action of pushing or feeding the group of items to be packed out of the tubular film forming tunnel is only given by the forward stroke of the pushing means 024.
Thus, the device has a relatively simple and compact structure and can achieve a relatively fast operating speed, in other words, it does not stress the packaging film and limits the risk of product crushing.

  The present invention may be improved and modified without departing from the scope of the inventive concept. In particular, the second embodiment provides a device with a relatively simple and compact structure, and can achieve a relatively high operating speed, in other words, does not stress the packaging film.

  Moreover, all details of the invention may be interchanged with technically equivalent elements.

1 is a schematic side view of a first desired embodiment of a device according to the invention with several sections in cross section. Figure 2 is a schematic side view of further operational steps of the first desired embodiment of the apparatus. Figure 2 is a schematic side view of further operational steps of the first desired embodiment of the apparatus. Figure 2 is a schematic side view of further operational steps of the first desired embodiment of the apparatus. Figure 2 is a schematic side view of further operational steps of the first desired embodiment of the apparatus. Figure 2 is a schematic side view of further operational steps of the first desired embodiment of the apparatus. Figure 2 is a schematic side view of further operational steps of the first desired embodiment of the apparatus. Figure 2 is a schematic side view of further operational steps of the first desired embodiment of the apparatus. Figure 2 is a schematic side view of further operational steps of the first desired embodiment of the apparatus. Fig. 4 is a schematic diagram of an enlarged detail of the sealing and cutting area, in particular showing the front area of the tubular film being supplied. FIG. 2 is a schematic rear view of a first desired embodiment of an apparatus according to the present invention. FIG. 2 is a schematic perspective view of a front portion of a tunnel forming a film in a wrapping paper or tube that can be used in a first desired embodiment of the device according to the invention. Fig. 3 is a schematic perspective view of a second desired embodiment of the device according to the invention. Fig. 3 is a schematic side view of a second desired embodiment of the device according to the invention. FIG. 6 is a schematic side view of a packet supplied via an apparatus according to a second desired embodiment of the present invention. Fig. 4 is a schematic perspective view of an apparatus for forming a group of items to be packed, belonging to a second desired embodiment of the apparatus according to the invention. FIG. 6 is a schematic perspective view of a downstream part of a tunnel for packaging a group of items to be packed, belonging to a second desired embodiment of the device according to the invention. Fig. 6 is a schematic perspective view of an end separation carriage for a group to be packed, belonging to a second desired embodiment of the device according to the invention. Figure 3 is a schematic side view of the main operating stage of a second desired embodiment of the device. Figure 3 is a schematic side view of the main operating stage of a second desired embodiment of the device. Figure 3 is a schematic side view of the main operating stage of a second desired embodiment of the device.

Claims (93)

An apparatus for packing a group of items (012) with a special wrapping paper obtained from a film or sheet, in particular a film made from a plastic material,
Each of the items is preferably a package containing a product,
Means for supplying a group of items (044); means for supplying a film (019); means for packaging a group of items on the film (019); Means (024) for inserting a group of items into said tubular film (019), and means (010c) for packaging said group of items array said film (019) in tubular form In a device comprising means (023) for
There is means for supplying the groups (012a, 012b, 012c, 012d) in which the apparatus is aligned and engaged with each other in the means (023) for arranging the films (019) in tubular form A device for packing a group of goods, characterized in that.   2. A means for joining (078, 078), in particular means for sealing, corresponding to the transverse part of the tubular packaging film (019), according to claim 1 or of claim 1 The device described in the preamble.   Means (077, 077) for cutting the tubular packaging film (019) at the transverse joined portions to form the packet containing each group of goods (012). Item 3. The apparatus according to Item 2.   The item insertion means (024) is adapted to insert a plurality of groups of items into the tubular film (019) in alignment and in engagement with each other. The apparatus according to any one of claims 1 to 3 or the preamble of claim 1.   The article insertion means (024) is adapted to insert a plurality of groups of articles in alignment and in engagement with each other into the arrangement means (023) of the tubular film (019). A device according to any one of claims 1 to 4 or the preamble of claim 1.   Tubular element (027) adapted to receive a plurality of groups of said articles passing outside, said tubular film (019) having tubular film arrangement means (023) in alignment and engaging each other The device according to claim 1, comprising:   Device according to any one of the preceding claims, characterized in that the plurality of items comprises at least a first upstream group (012a) and a second downstream group (012b). .   8. The apparatus according to claim 7, characterized in that the plurality of items comprises at least a third group of intermediate items (012c).   9. Apparatus according to claim 8, characterized in that the plurality of items comprises at least a fourth group of intermediate items (012d).   10. An apparatus according to any one of the preceding claims, characterized in that the supply means is means for supplying the article and a tubular film (019).   Device according to any one of the preceding claims, characterized in that the means for supplying the item and the tubular film (019) comprise at least an upper supply part (0113).   12. Device according to any one of the preceding claims, characterized in that the means for supplying the item and the tubular film (019) comprise at least a lower supply part (0115).   2. The means for supplying the article and the tubular film (019) comprises a plurality of upper supply belts (0113) and lower supply belts (0115), respectively. 13. The apparatus according to any one of items 12.   14. A device according to any one of the preceding claims, characterized in that the supply means are arranged at the end or downstream part of the forming tunnel.   Means for engaging the supply means with the tubular film (019) and the group housed therein, and for opening the supply means from the tubular film (019) and the group housed therein. 15. A device according to any one of the preceding claims, characterized in that there is a means.   To release the supply means from the tubular film (019) and the group accommodated therein, and the means for engaging the supply means with the tubular film (019) and the group accommodated therein. 16. The device according to claim 1, wherein the means is in the form of means for moving in the direction of the tubular film (019) and the group accommodated therein and in the opposite direction. The device according to item.   The supply means extends from an end of the arrangement means (023) of the tubular film (019) over a predetermined portion suitable for engaging a group of a predetermined quantity of items. The apparatus according to any one of claims 1 to 16, wherein:   The feeding means are inserted into the longitudinal part of the tubular film (019) and the longitudinal part of the tubular film (019) reaching through the corresponding wall opening of the tunnel (027); Device according to any one of the preceding claims, characterized in that it engages a corresponding surface.   The feeding means is inserted into the longitudinal part of the tubular film (019) reaching through the opening (027c) of the tubular film (019) and of the upper wall of the inner tunnel (027). The device according to claim 18, characterized in that it engages the upper surface of the group.   The feeding means is inserted into the longitudinal part of the tubular film (019) which reaches through the opening (027d) of the tubular film (019) and at least the corresponding opening (027d) of the lower wall of the tunnel (027) 20. A group according to claim 18 or 19, characterized in that it is engaged with the lower surface of the group to be operated and that there are means (027e) for supporting the group of items in an open state. apparatus.   21. A plurality of protrusions (027e) on which the article is placed, wherein the protrusions are separated laterally by slits (027d) for passages of the supply means. Equipment.   22. A supply means in the form of means for supplying said article and said tubular film (019), characterized in that it comprises means (030) for pushing said article. An apparatus as claimed in claim 1 or as set forth in the preamble of claim 1.   23. A claim according to any one of the preceding claims, characterized in that the means for inserting the item into the tubular film (019) is in the form of means (030) for pushing the item. The apparatus according to the preamble of item 1.   24. Device according to claim 22 or 23, characterized in that the pushing means are adapted to engage the rear face of the upstream group of the plurality of groups to be inserted.   25. Any one of claims 22 to 24, characterized in that the means for pushing comprises a movable element (030) adapted to engage a group of items arranged on a support surface (044). The device according to item.   26. Device according to claim 25, characterized in that the movable element (030) moves in an alternating motion, pushing the item forward and then back.   27. Device according to claim 25 or 26, characterized in that the means for supporting the group to be inserted comprises a conveyor belt (044) forming a supply means for the group of items.   There is means (044) for supplying the group of upstream items in contact with the adjacent group of downstream items, at least partially inserted into the packaging means (027, 028); 28. A device according to any one of claims 1 to 27, or according to the preamble of claim 1.   29. The method of claim 1 wherein the means for inserting the group of items into the tubular film (019) remains outside the front of the forming means of the tubular film (019). The apparatus according to any one of the preceding claims.   30. Apparatus according to any one of claims 1 to 29 or to the preamble of claim 1, characterized in that there are means (010b) for spacing the groups of goods being packed together. .   31. The method of claim 30, wherein the means (010b) for spacing the group of items from each other separates a group of downstream items from a group of items upstream of the downstream group. apparatus.   32. A device according to claim 30 or 31, characterized in that the means (010b) for spacing the group of items from each other is arranged close to the end of the arrangement means of the tubular film (019). Equipment.   33. Any one of claims 30 to 32, characterized in that the means (010b) for spacing the group of items from each other is arranged downstream outside the arrangement means of the tubular film (019). The device according to item.   The means (010b) for spacing the downstream item group from the upstream item group of the downstream item group includes a closure of a rear portion of the downstream packet and a front of the adjacent upstream packet. 34. Device according to any one of claims 30 to 33, characterized in that the groups are spaced in a way that allows part closure.   The means (010b) for spacing the group of items from each other engages a portion of the tubular film (019) packaged around the downstream group of items and a portion of the group within it. 35. Device according to any one of claims 30 to 34, characterized in that it is means for supplying.   The means (010b) for spacing the group of items from each other is means for engaging a front portion of the tubular film (019) packaged around the group of downstream items; 36. Apparatus according to any one of claims 30 to 35, characterized in that there is also a means for moving the engaging means.   37. The apparatus of claim 36, wherein the means for moving the engagement means moves the engagement means back and forth in the longitudinal direction.   38. Device according to claim 36 or 37, characterized in that the engaging means comprise at least a first and a second element and are installed facing each other.   39. Apparatus according to any one of claims 36 to 38, characterized in that the engaging means comprise a supply belt.   The means for spacing the group of items from each other is operated by accelerating the tubular film (019) and corresponding portions of the group of items contained therein. 40. Apparatus according to any one of 30 to 39.   The means for longitudinal movement of the means for engaging the downstream group is moved away from the downstream end of the arrangement means of the tubular film (019) to move the rear face of the downstream group 41. A device according to any one of claims 36 to 40, characterized in that it is spaced from the adjacent upstream group.   A portion or stroke suitable for creating a distance between the rear face of the downstream group and its adjacent upstream group, wherein the means for longitudinal movement of the means for engaging the downstream group By moving away from the arrangement means of the tubular film (019), allowing the downstream end of the tubular film (019) to be clamped, sealed and cut 42. The apparatus of claim 41, wherein:   The longitudinal movement means return to the direction of the arrangement means of the tubular film (019) before the front part of the downstream group emerges from the arrangement means of the tubular film. 43. Apparatus according to any one of 36 to 42.   44. A device according to any one of claims 36 to 43, characterized in that the longitudinal movement means returns in the direction of the arrangement means of the tubular film (019) before the group of goods moves forward. The device described.   45. Apparatus according to any one of claims 2 to 44, characterized in that there are means for moving the joining and / or cutting means longitudinally.   The means for joining and / or cutting is operated while the tubular film (019) and the group wrapped in the tubular film (019) are stationary. 46. The apparatus according to any one of 2 to 45.   47. A method according to any one of claims 2 to 46, characterized in that the means for joining and / or cutting and the means for separating the groups from each other are supported in a single frame (080). The device described.   48. Device according to any one of claims 2 to 47, characterized in that there is a longitudinally movable support frame (080).   There is a longitudinal drive means for the movable frame (080), which consists of a continuous element (082) that moves back and forth and is connected to function properly with the frame and slides along an appropriate guide. 49. Apparatus according to claim 48, characterized in that it moves.   The continuous element (082) for moving the longitudinally movable frame extends below the support means (084) and is arranged downstream of the arrangement means of the tubular film (019). 50. The apparatus of claim 49.   51. Device according to any one of claims 36 to 50, characterized in that there are drive means (087) for engaging and releasing the spacing means.   52. Means for driving means for engaging and supplying the engaged portion of said tubular film (019) and said group of items contained therein. The apparatus of any one of Claims.   53. Device according to any one of claims 36 to 52, characterized in that the engaging means comprise at least one supply belt (072,074).   54. The means according to claim 53, characterized in that there are means for rotationally driving the engagement belt (072, 074) to supply the tubular film (019) and the group of related items. apparatus.   55. Device according to any one of claims 36 to 54, characterized in that the engagement elements (072, 074) are supported by a vertically movable support frame (087).   56. Device according to any one of claims 36 to 55, characterized in that said engaging and feeding belt (072,074) extends in the horizontal direction and has a longitudinal engaging part. .   57. Preamble according to any one of claims 1 to 56, characterized in that there is means (084) for moving the downstream packet away from the means for sealing and cutting. The device described in 1.   58. The apparatus according to any one of claims 1 to 57 or the preamble of claim 1, characterized in that the means for supplying a packaging film comprises a film support reel (022).   59. Apparatus according to any one of claims 1 to 58 or in the preamble of claim 1, characterized in that there is means for driving the supply means of the film (019).   60. Apparatus according to any one of claims 1 to 59, characterized in that the film drive means releases the film (019) at a substantially constant rate.   61. Apparatus according to any one of claims 1 to 60 or in the preamble of claim 1, characterized in that there is means for feeding a film (019) downstream of the film support means.   62. Apparatus according to claim 61, characterized in that said film feeding means is controlled by a suitable control device adapted to allow controlled feeding of said film.   The flat film supply means is characterized in that it releases the film at a predetermined speed (V1) equal to the speed at which the group enters the tubular film (019) forming means, 63. Apparatus according to claim 61 or 62.   The flat film supply means is different from the predetermined film supply speed (V1) equal to the translation speed of the means for spacing the groups apart from each other during the insertion of the group of items. 64. The apparatus according to any one of claims 61 to 63, wherein the film is discharged.   65. The flat film supply means is adapted to release the film at a predetermined speed (V3) equal to the closing speed of the clamping means. The apparatus according to item 1.   The flat film drive means is adapted to discharge the film at a predetermined speed (V0), in particular at a predetermined speed (V0) comparable to the stop of film release, 66. Apparatus according to any one of claims 61 to 65, characterized in that the transverse part separating the downstream group from the next group is sealed and cut.   67. A device according to any one of claims 1 to 66, characterized in that there is means (0119) for stopping the supply of the grouped group into the tubular film (019). Apparatus according to the preamble of claim 1.   The group of items (012d), wherein the means for stopping the supply into the tunnel extend inside the tubular film (019) and must be separated from the downstream group (012b) to be packed 68. The device according to claim 67, wherein the device engages with a front portion.   69. Device according to claim 67 or 68, characterized in that the stop means (0119) comprise a longitudinally extending element (0119a).   70. Device according to any one of claims 67 to 69, characterized in that, at the downstream end, the stop means (0119) comprises a transverse member (0119b).   71. Apparatus according to any one of claims 67 to 70, characterized in that the stop means (0119) rotate axially upstream of the longitudinal sealing means (029).   72. Any of the claims 67 to 71, characterized in that the upstream end of the stop means (0119) is driven to allow it to engage and release the corresponding group (012d). The apparatus according to item 1.   73. Apparatus according to any one of claims 1 to 72 or in the preamble of claim 1, characterized in that there are means for exchanging air with the inside of the tubular film (019).   74. Apparatus according to claim 73, characterized in that the means for exchanging air with the inside of the film is located at the downstream end of the tunnel (027).   75. Apparatus according to claim 73 or 74, characterized in that the air exchange means comprises means for blowing a flow of air inside the tubular film (019).   The means for exchanging air with the inside of the tubular film (019) comprises small perforated tubes and has a plurality of distributed openings, the tubes to be separated. 76. Device according to any one of claims 73 to 75, characterized in that it extends along the transverse member (0119b) of means for stopping the upstream group adjacent to (012b).   The means for exchanging air with the inside of the tubular film (019) comprises a small perforated tube and has a plurality of distributed openings, the tube being the tunnel (027) 77. Device according to any one of claims 73 to 76, characterized in that it extends downwards at the distal end (0127).   The means for supplying the group of items discharges means for sequentially receiving the items, means for intermediate storage of the items, and predetermined and spaced groups of items. 78. A device according to any one of claims 1 to 77, or the preamble of claim 1, characterized in that it comprises means for:   The item is mounted on the means for sequentially receiving the items, wherein the means for receiving arranges the item in a position for the item to be received by the storage means; 79. The apparatus of claim 78, characterized in that   80. Apparatus according to claim 78 or 79, wherein the means for sequentially receiving the items is adapted to extrude the previously received items.   The means for sequentially receiving the items comprises at least one portion (48) adapted to receive items and simultaneously push forward the previously received items. 81. Apparatus according to any one of claims 78 to 80.   The portion (48) adapted to receive an item and simultaneously push forward the previously received item so as to push the upper side for receiving the item and the previously received item forward. 82. Device according to any one of claims 78 to 81, characterized in that it is a part comprising a front surface.   There is a first portion and a second portion (48) that are adapted to receive an item and simultaneously push forward the previously received item, and these portions alternately receive the item one after another, 83. Apparatus according to any one of claims 78 to 82, characterized in that the goods received by different parts are pushed forward.   Wherein said portion (48) adapted to receive an item and simultaneously push forward said previously received item moves along a substantially circular path, in other words along a closed path, 84. Apparatus according to any one of claims 78 to 83.   Said portion (48) adapted to receive an article and at the same time to extrude the previously received article forward has a plurality of formed receiving and extrusion elements, which are laterally spaced from one another. 85. Device according to any one of claims 78 to 84, characterized in that   The portion (48) adapted to receive an item and simultaneously push forward the previously received item is movable on a vertical guide rod, the guide rod moving longitudinally; 86. Any one of claims 78 to 85, wherein the part can be made to follow a closed path, and the part is arranged at a predetermined position for receiving the item at predetermined time intervals. The apparatus according to item 1.   87. Apparatus according to any one of claims 78 to 86, wherein the intermediate storage means for the goods comprises a lower support, a supply surface and at least one upper supply belt.   88. Apparatus according to any one of claims 1 to 87 or in the preamble of claim 1, characterized in that there is a means for compacting the goods or for integrating the sides.   The means for discharging a group of already formed and spaced items comprises means for supplying the item and means for stopping the supply of the item, the item comprising a predetermined 89. Apparatus according to any one of claims 78 to 88, characterized in that it is released in a manner that allows the release of groups of quantities of items.   A plate in which the means for stopping the supply of goods can move between a position where it engages and stops the goods and a retracted position where it can freely pass through the group of goods; 90. Apparatus according to any one of claims 1 to 89, characterized in that it comprises.   The apparatus according to any one of claims 1 to 90 or the preamble of claim 1, characterized in that there are suitable means for arranging the items to be packaged at multiple levels. A process for packing a group of items in a special wrapping paper obtained from a film or sheet, in particular a film made from plastic material,
Each of the items is preferably a package for storing the product,
The process includes providing a group of items, supplying a film, and packaging the group of items in the film;
In the process of packaging the group of items, the film is arranged in a tubular form and the group of items is inserted into the tubular film,
A process wherein a plurality of groups of items are inserted into the tubular film in an aligned and engaging state. A process for packing a group of items in a special wrapping paper obtained from a film or sheet, in particular a film made from plastic material,
Each of the items is preferably a package for storing the product,
The process includes providing a group of items, supplying a film, and packaging the group of items in the film;
In the process of packaging the group of items, the film is arranged in a tubular form and the group of items is inserted into the tubular film,
A process characterized in that a plurality of groups of items are inserted into the arrangement means of the tubular film (019) in an aligned and engaging state.

Images