CS204979B2 - Machine for making the packaging vessels - Google Patents

Abstract

1454464 Apparatus for producing parallelepiped packages TETRA PAK DEVELOPPEMENTSA 11 Jan 1974 [18 Jan 1973] 01323/74 Heading B8C A machine for forming filled containers from two webs 5 and 6 of foldable material which may be plastics coated paper, metal foil coated with plastics and paper, plastics film or foam plastics, comprises a series of moulds 4 which are movable past a rotatable forming tool 3 for pressing the web 5 into the moulds 4, a driver feed drum 23 which feeds the web 6 over the formed web 5 synchronously with the movement of the moulds, an arrangement 15, 16 for folding down and securing the edge zones of the web 6 to the edges of the formed web 5, a filling tube 19 and a cutter 18 for separating individual or groups of containers for the series. The moulds 4 comprise L-shaped or T-shaped links and they may also have a rounded U-shape. The forming tool 3 which is fixed on a rotatable axle 104, comprises two vanes 68 having rounded folding surfaces 124, 125. The forming tool axle 104 is supported in a reciprocable swivel arm (102), Fig. 3b (not shown), which is controlled by a cam (108) to move the forming tool 3 firstly in the same direction as the moulds 4 and in synchronism therewith and then in the opposite direction, Fig. 4a, and Figs. 46-4f (not shown). Cam blades (115), Fig. 3b (not shown), which are pivoted to the swivel arm control cam (108) can be projected beyond the periphery of this cam (108) to alter the effective camming surface for adjustment of the feed of the web 5 to the moulds. The driven feed drum 23 has its surface divided into twelve segments 202. At stations located adjacent the drum 23 a pouring hole is punched in the web 6, a cover strip is applied over the hole, the web 6 is heated to its forming temperature, stamped, vacuum or pressure formed and provided with transverse slits in its edge zones. The punching tool 212, 213, the cover strip sealing tool 224, the heater 203 and the stamping and cutting device 208 operate simultaneously and are mounted on an oscillator plate 59 which rotates in synchronism with and in the direction of rotation of the feed drum while the tools are working and when the punching, &c. operations have been completed, the oscillator plate quickly rotates back to its starting position. The movements of the oscillator plate 59 and the tools mounted thereon are controlled by cams. The rate of web feed by the drum 23 can be adjusted by means of a conical element (256), Fig. 6 (not shown) which is located within the drum and can be moved axially of the drum to adjust the position of radially projectable parts (258) arranged between the segments 202 and spring urged against the conical element. The devices for folding down and securing the web 6 to the web 5 and for sealing and separating the filled containers are controlled by cams and are mounted on a reciprocable column 13 for movement therewith in synchronism with the movement of the moulds 4. Prior to the edge zones of the web 6 being folded down by folding and pressure flaps 333, the edges of the web 5 and the portions of the web 6 intended to be secured to these edges are heated to their softening temperature by hot air issuing from an array of holes (336) Fig. 8 (not shown), or in slots in a heating device 15. The filled containers are sealed, for example, by ultrasonic welding heads 317. The package separating device 18 comprises a pivoted plate 312 which has two spaced, parallel transversely extending cutting edges on its underside. A pressure roller 309 rolls over the upper surface of the plate 312 for the cutting operations to firstly pivot the plate one way, causing one of the cutting edges to separate the leading package, and then to pivot the plate in the opposite direction, causing the other cutting edge to separate the following package. The reciprocation of the columns in bearings 14, the operation of the folding blades 333 and the movement of the welding heads 317 into contact with the containers are effected by cams. The filled packages are transferred from the moulds 4 to a finishing device 33 for the removal of projecting sealing pins, and finally a device 35 places the packages in transport cartons or baskets.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container manufacturing machine comprising a device for forming a first continuous web of foldable material folded into a plurality of interconnected U-shaped portions, a device for attaching a second web of translatable material to a first web. downwardly against the edges of the folded first belt, a means for gluing the joined portions of the second belt and the first belt to form a series of rectangular f cavities, and a device for filling these cavities behind; imaginary goods.

| Often, packaging containers are made during packaging of the goods at a time when the goods to be packaged are also introduced into the packaging containers.

This can be done in that the containers consist of pre-cut blanks which are folded in an automatic folding machine to form a box, or they are also produced in such a way that the wrapping material is supplied in the form of a strip, for example The tube is filled with goods and then divided by successive transverse joints in planes perpendicular to the axis of the tube. The parts of the tube thus separated can then be subjected to shaping so that they are permanently shaped, for example, for prisms.

In this method of production of packages, waste is inevitably produced by the fact that a portion of the packaging material, which does not directly form part of the package, is retained in the fastening device. For example, if a piece of pipe that was laterally divided · perpendicularly · to its axis and shaped into a prism, a triangular double-walled flap is formed at each corner · consuming packaging material that does not directly form any part of the packaging but is useless waste ¹ packing material.

In practice, it has been found that the production of endless belt packaging containers is preferable to the production of pre-cut blanks, the main reason being that the strip wrapping material can be supplied in rolls, the surface of the wrapping strip being well protected by adjacent roll layers. whereas in the case of pre-fabricated blanks such protection is not possible.

Further, the wrapping material that is fed in the form of discs takes up much less space and is easier to transport than the wrapping material in the form of preformed blanks, and the compact rolls of wrapping material also require no outer packaging during transport, which is a great economic advantage.

As already mentioned, undesirable waste is generated when, for example, prism packages are formed from a sheet which is shaped into a tube and the purpose of the invention is to reduce this waste as far as possible.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a machine for manufacturing packaging containers from strips of packaging material while minimizing waste.

The object was solved according to the invention by designing a machine for packaging containers according to the invention, filling them with goods and sealing them in an impermeable package, provided with a first device for shaping the first endless web of wrapping material into an endless row of interconnected U-shaped sections; an endless belt of wrapping material to the first web, a third means for folding the edges of the second endless belt to the edges of the first endless web, a fourth means for welding adjacent portions of the second endless belt to the first endless web to form an endless row of hollow wrappers for filling the resulting hollow containers with goods and a sixth device for closing the filled packages.

SUMMARY OF THE INVENTION The first apparatus for forming a first wrapping material web is formed by molds connected to each other in a continuous link chain that are moved in a co-directional direction and by a supply of a first packaging material web and a second device for attaching a second wrapping web The material web is provided with a feed drum adapted to synchronously feed a second web of packaging material with a feed of the molds of the first device.

Further, according to the invention, a first device for forming a first web of wrapping material with a continuous chain of articulated continuous-form molds is provided with a two-blade shaft-shaped rotary molding tool mounted on a rotary shaft mounted in the machine frame. curved. a rolling surface and at least one end curved rolling surface adapted for. forcing the first web of packaging material into the molds and shaping them thereon. their inner walls. Further, according to the invention, the curved rolling surfaces of the rotary forming tool have the same radius of curvature and are located on opposite sides of the rotating shaft of the rotating forming tool.

Also, according to the invention, the rotatable shaft of the rotary forming tool is mounted on the upper end of the pivoting arm with a reciprocating rocking motion.

Still further, according to the invention, the pivot arm is supported by a lower end rotatably on the shaft and provided with pulleys, the first pulley being pressed by the pneumatic cylinder onto the cam disc and the second pulley being pressed by the pneumatic cylinder onto the control segments. which engages a gear keyed on the shaft.

According to yet another aspect of the invention, the molds arranged one above the other in an endless chain link form between the building a series of spaces of U-shaped cross-section, each of these spaces being delimited by a lower part with two lateral vertical parts.

A further feature of the invention is that the forming forms are formed by L-shaped links. Yet another feature of the invention is that the L-shaped links of the molds are guided by chain wheels, the upper of which is mounted on the shaft.

Further, according to the invention, the rotatable shaft is reciprocatingly guided in the elongate housing bore above the upper edge of the vertical portion of the L-shaped inverted member, wherein a first belt is between the rotatable shaft, upper edge, end curved rolling surface and lateral curved rolling surface. packaging material.

Also according to the invention, the end curved rolling surface of the at least one blade of the rotary forming tool lies at the same distance from the axis of the rotating shaft as the edge formed by the cut of the vertical part and the lower part of the L-shaped member.

Still further according to the invention, the arc length of the end curved rolling surface of the forming tool is equal to the length of the lower portion of the L-shaped member and the arc length of the side rolling surface of the forming tool is equal to the length of the vertical portion of the L-shaped member.

According to yet another feature of the invention, the feed drum mounted on the drive shaft is formed by planar circumferential sections whose length equals the length of the lower portion of the L-shaped inverted member and each has a central portion and an outer portion, each of the outer portions being equal to the vertical portion of the L-shaped molding.

Also, according to the invention, the outer portions of the peripheral planar section of the feed drum are provided with a shallow recess.

A further feature of the invention is that coaxial with a feed drum whose drive shaft is driven by a belt pulley via intermediate gears from a shaft driven via belt pulley pulleys from a drive shaft via a gear from a main drive motor equipped with a transmission whose output shaft is provided an oscillating ring mounted on a hollow shaft rotatably mounted on a drive shaft on which a shoulder provided with a cam follower at its free end is mounted in contact with a cam disk between which the gear wheels 20 and the drive shaft engage

6 la. Yet another feature of the invention is that dispensing devices of a homogeneous plastic material wrapper, a punching device of a second wrapping material strip, a cutting device of a second wrapping material strip, and a heating device of a second wrapping material strip are provided on the oscillating ring.

Further, according to the invention, the device is provided with a cutting device of the edge of the second wrapping material strip with transverse cuts perpendicular to its axis, to a depth at least equal to the height of the vertical portions of the L-shaped cells.

According to the invention, radially displaceable plates are provided between the planar peripheral sections of the feed drum.

According to a further feature of the invention, the radially displaceable plates are provided on the inside with resilient pressure pins whose free ends are supported on an axially displaceable adjusting cone.

Still further according to the invention, a cam disk is provided on the drive shaft provided with two cam tracks in which the cam rollers are guided rotatably supported on the free ends of the arms mounted on the oscillating ring.

Still further, according to the invention, coaxially with the cam disk is a fixed gear that engages a pinion on the shaft of which a pinion engages with a gear, on the shaft of which a pinion engages with a gear. around a belt groove pulley wedged on the drive shaft of the feed drum, wherein the transmission ratio between the drive shaft and the cam is 1: n / 2 to fast, where n is the number of planar peripheral sections of the feed drum. A further feature of the invention is that behind the feed drum in the direction of movement of the second packing material strip, a column is mounted on the machine frame axially displaceably, parallel to the second packing material strip, on which a folding housing is supported. at the free ends of which the folding flaps are fixed, and on the rotating shaft there are fixed arms connected by rods to a arm mounted on the rotating shaft passing through the hollow column.

According to yet another feature of the invention, a hollow body-shaped heating device is attached to the edge of the hot air and provided on the wall facing the underside of the second wrapping material with hot air exhaust openings disposed along the edge portions of the flaps between cross sections of the second wrapping belt The length of the heating device is equal to the width of the two flaps. Further, according to the invention, the heating device is fixed to the housing of the folding device.

Also, according to the invention, the link chain of the molds for forming a first strip of wrapping material comprising packages of goods is closed at the lower end by an endless belt conveyor comprising a plurality of individual belts wrapped around the end rollers and conveyor wheel provided with protruding radial fingers adapted to receive the packages; transfer to the finishing ¹ device.

Finally, according to the invention, the radial fingers of the wheel conveyor extend into the gaps of the system of individual belts of the endless belt conveyor.

An advantage and a new progressive effect of the invention is that by means of the invention placed on the machine, two flat endless belts of packaging material are converted into filled, sealed, customer-usable packages of goods, with the highest efficiency while minimizing losses of the starting packaging material. ie endless flat belts, and at high power. These advantages are achieved by reshaping one flat strip into a series of interconnected U-shaped parts and overlapping them with a second flat strip whose edge side portions are folded down towards the reshaped first strip and longitudinally connected thereto.

The machine for manufacturing packaging containers according to the invention will be described and explained in detail below with reference to the exemplary embodiment shown in the accompanying drawings, in which:

Fig. 1 is a schematic side sectional view of the machine according to the invention; Fig. 2 a schematic side view of the hub of the machine; Figs. 3a, 3b drive apparatus of the forming tool; Figs. 4a, 4b, 4c, 4d, 4e and -4f Fig. 5 is a front view of the feed drum, Fig. 8 is a front elevation view of the feed drum, partly in section, Fig. 7 drive mechanism of the feed drum, Fig. 8 a perspective view of the device for mounting sheets of wrapping material and closing edge flaps, folded the second sheet of packaging material to the folded side edges of the first sheet of packaging! 9 shows a front view of parts of the machine by which the sheets of packaging material are assembled together, and FIG. 10 shows a device for closing the middle part of the second wrapping material sheet to the tops of the folded first wrapping material sheet together with the device for separating closed individual packages; Fig. 11 'illustrates a perspective view of a drive device for the assembly shown in Fig. 10, Fig. 12a of a series of coupled packages made on a machine according to the invention;

Although materials of different kinds or combinations thereof may be used as packaging materials, for example, plastic film, plastic coated paper, plastic coated plastic film and paper, or other combinations of known materials, it is believed that these are

8 is a wrapping material which is a sheet of foamed plastic material, for example foamed polystyrene, having at least one side a layer of homogeneous plastic, such as polystyrene. The two packing material strips, which are folded and joined together after forming, do not necessarily have the same thickness, but for the sake of simplicity it is assumed that the packing material strips are made of the same kind of material and have approximately the same thickness. thickness. However, one of the strips of packaging material, that which passes through the feed drum, must · be considerably more durable than the strip of packaging material that is presented by the forming tool.

First it is. a general description of the machine is given to explain its nature and then. the various details shown in the drawings are described in detail below.

The packaging machine according to the invention consists of a frame 1, a finishing device 33 for adjusting and finishing the packages to be produced, an automatic packaging device 35 and a housing 58 for coils 8, 9 of the packaging material.

The casing 58 for the wrapping material candles 8, 9 is provided with coil racks on which the coil storage rolls 8, 9 are wrapped. In this case, the extruded polystyrene foam material is extruded, the strips coated on both sides with a layer of homogeneous polystyrene. The wrapping material strips 5, 6 are unwound from the wrapping material rolls 8, 9 and passed through guide rolls 25. The third wrapping material roll 10 comprises a strip 7 of homogeneous plastic material, which is used to place around the opening of the package being manufactured.

The wrapping machine itself consists, as mentioned above, of a frame 1 on which a rotatable feed drum 23 is arranged, which is arranged so that a second wrapping material strip 6 can be guided over it and on which work operations are carried out. in the stations on the periphery of the feed drum 23, which in the illustrated case is divided into 12 parts. The wrapping machine is further provided with a device 2 for forming the first wrapping material web 5. The machine 2 comprises movable molds 4 mounted on an endless chain which in the embodiment of FIG. 1 moves in a clockwise direction. The belt forming apparatus 2 is further provided with a rotatable forming tool 3 which is formed as a two-piece wing by which the packing material belt 5 is brought into contact with the forming forms 4 to form a series of connected U-shaped parts. Further illustrated is a supply line 20 of goods to be packaged, a controller 21 for controlling the amount of goods filled into individual packages 30 and a feed tube 19. The machine further has a heating device 15 with a hot air supply pipe 22. Mounted on the machine frame 1 is a bearing 14 for guiding the reciprocating column 13. The column 13 is provided with a folding device 18, a closing device 17 and a cutting device 18 which move together with the column 13 as it is reciprocated. The column 13 is moved synchronously with the molds. 4 for their downward movement, wherein. the upward movement of column 13 is faster.

Finished package. 30. made of metal forming. The molding means 2 is converted into a finishing tool 33 by the belt forming device 2. crawler. Conveyor 28 formed by. a system of individual belts 272, 34 wrapped around the end rollers 29 therebetween. . the transport wheel 27 provided with radial fingers 271. The protruding closing ribs of the finishing device 33 are designed to impart packages. · · 30 for a better look, and stripping them of edges that could snap together during transport and handling. The packages 30 are retained. in an endless chain conveyor of the finishing device 33 provided with protruding ribs to form spaces in which. . The packages 30 are retained by the endless support belt 31 wrapped around the end pulley 32 and the end roller 29 previously described. 30 and packages 30 are conveyed by the pusher 34 to an automatic packaging device 35 in which the packages 30 are loaded into shipping cartons or distribution boxes.

The operation of the packaging machine is as follows:

The first wrapping material strip 5 unwound from the first coil magazine 8 passes. over a guide roller 25, the wrapping material being unwound by a drive roller 24 abutting the wrapping material guided on the guide roller. 25.

The drive pulley 24 is controlled by a device comprising two photocells 11. When a large piece of the first wrapping material web 5 has been unwound by the drive pulley 24, the formed wrapping material loop covers the bottom photocell 11. If this happens, the controller receives a pulse and the drive pulley 24 stops. The team. the supply of the first packing material strip 5 is stopped, its loop is reduced, and as soon as the loop is reduced to expose the lower photocell 11, the supply of packing material is restored by the drive roller 24. The first packing material strip 5 is brought into contact with molding molds 4 for the device 2. for forming a strip on which the molds 4 are fixed. on an endless chain that moves at a constant speed along a closed track.

This is achieved by a rotary forming tool 3 consisting of a swivel and pivoting wing having two parts, the operation of which will be described in more detail below. By means of this rotary molding tool 3, the first packing material web 5 is pressed exactly against the walls of the molds 4, thereby being folded into an endless U-shaped meander which forcibly moves the web forming apparatus 2 at a constant downward speed.

The second wrapping material strip 6 unwinds from the second wrapping material roll 9, passes through the guide roller 26 and further onto the feed drum 23. The feed drum 23, as mentioned previously, has twelve circumferential shaping surfaces, each having a a width that corresponds to the distance between two adjacent molds! 4 on the web forming device 2.

The feed drum 23 rotates at a constant peripheral speed, while the outer oscillating ring 59 moves about the axis of the feed drum 23 by a reciprocating rotational movement. Oscillating ring 59 is provided with a punching device 60 for punching and applying a homogeneous plastic cover strip 7, a cutting device 61 and a heating device 62. When the second wrapping material strip 6 passes on the feed drum 23 through the punching device 60, 61, 62, punching is performed. placing a homogeneous plastic wrapping strip 7 on the hopper opening, heating the second wrapping material strip 6 and thermoforming it, and cutting the outer portions of the second wrapping material strip 6 at right angles to its longitudinal direction. A homogeneous cover strip 7 of plastic material is unwound from the third supply roll 10 and is applied by the applicator 60 to a feed opening formed in the second packing material strip 6 and fastened thereto so that the feed opening is retained.

Next, the front portion of the homogeneous cover strip 7 is cut off by the applicator 60 so that the homogeneous strip 7 applied to the formed fill opening is separated from the remainder of the homogeneous cover strip 7. The second packing material strip 6 provided with the fill opening and opening device is further provided with the cut-off edges, which are perpendicular to the longitudinal axis of the second wrapping material strip 6 and whose length corresponds to the height of the molds 4, and are fed through the feed drum 23 at the same speed as the molding speed 4; until the middle portion thereof is above the tops of the molds 4, while portions of the edges of the second cut-out strip 6 of the wrapping material project beyond the molds 4.

The regulator (not shown) moves the second wrapping material strip 6 by the feed drum 23 so that the cut-outs in the second wrapping material strip 6 are positioned correctly in front of the vertical molding baffles 4. When the second wrapping material strip 6 is moved by the feed drum 23 synchronously with the molds 4 The column 13 is provided with a heating device 15 which can be connected to the hot air supply pipe 22 so that hot air can be blown through it. apertures provided in a particular pattern on the underside of the edge portions of the second wrapping material strip 6 delimited by said slits in the edge portions of the second wrapping material strip 6, wherein the plastic material softens and is ready for welding.

At the same time, the edge zones of the first packing material strip 5 are also heated by blowing hot air thereon as they are on the lateral sides of the molds 4.

Upon heating of the edge portions of the packing material strip 5, 6 required for their welding, the flaps 16 fold simultaneously the flaps formed in the second packing material strip 6 downwardly against the sides of the molds 4, thereby forming a joint between the edge portions of the second packing material strip 6. the edge portions of the first wrapping material web 5, since in the earlier working phase, these edge portions were heated by the heating device 15 to the extent that the joined edge sites are welded into a mechanically durable and permanently welded seam which stabilizes with the folding device 16 by cooling wherein this has abutted downwardly on a portion of the second packing material strip 6.

If the packing material strips 5, 6 have been joined together by transverse welds, the goods to be filled are fed through the feed tube 19 provided below the second packing material strip 6 but above the tops of the molds 4, the spaces formed below the second strip. 6 packs the packaging material with the intended goods. These spaces are enclosed by the closure device 17 in a closed package, which is accomplished by welding the second packing material strip 6 to portions of the first packing material strip 5 that are above the tops of the perpendicular portions of the molds 4. The sealing device 17 is also mounted on of the column 13 and moves with it in a reciprocating manner, which means that the closing takes place when the column 13 moves synchronously downwards with the molds! 4. In the example shown in FIG. 1, the closure device 17 is ultrasonic, however, thermal closure devices of the conventional type may also be used. The closed packages filled with the goods are finally separated from each other by the cutting device 18 separating the individual packages 30 by cutting in the welds made by the closing device 17.

The filled and closed packages 30 are held in the molds 4 by a belt conveyor 28 arranged below the belt forming device 2, which belt conveyor 28 is wrapped around two end rollers 29, and transported by a transport wheel 27 provided with radially protruding blades a finishing device 33, provided with a support belt 31 and a finishing device 36, from which the pusher 34 is further conveyed to an automatic wrapping device 35 in which the packages 30 are loaded into cartons or other shipping containers.

The wrapping machine can be controlled by a control panel 12 which includes the necessary control devices, for example temperature control devices at different heating locations and the like.

12

Fig. 2 shows the drive of the packaging machine according to the invention, which consists of a main motor 37 with a transmission 38, whose output gear 39 is engaged with an intermediate gear 40, further a gear 41 fixed on the drive shaft 49 with which the intermediate gear 40 is engaged, the drive shaft 49 being keyed with a spline pulley 42, further with a V-belt 43 wrapped around the wheel double groove - pulleys - 44, - freely - rotatable on shaft 48, - and - V-belt - 45, wrapped around double - groove pulleys 44 and pulley groove-bearings - 46, keyed - on drive - shaft 47, - whereby The drive shaft 49 is the drive shaft of the belt forming mechanism 2 and its chain on which it is fixed. the molding molds 4 and the drive shaft 47 is the drive shaft of the feed drum 23.

The toothed wheel 41 is engaged with an idler gear 57 wedged on the shaft 50, and also the wedge conveyor wheel 27 is shown (Fig. 1). .57 is in engagement with a " toothed " The shaft 33 is further driven by the finishing device 33 (FIG. 1). On the shaft - - 51 - a larger - toothed - wheel is further keyed. 55, which engages with a pinion 54 through which the drive chain 53 is driven via a chain wheel with a locking mechanism 53 from the auxiliary motor 52. on - the shaft 51, which - is - by means of the gear-locking mechanism 56 - coupled to the shaft - 50, on which the intermediate toothed gear -7 is keyed.

If driven by - packing. -machine - - by the main drive motor - 37 - and if it carries - by-toothing. - Wheels 39, - -40, - -41, -57 - - -Motion -to the gear-56, transmits -with its -clamping-motion mechanism -to the shaft 51. The auxiliary motor 52 is in this and the drive chain - ..- 53 is - stationary,. -because it is. blocked by a locking mechanism in a chain-wedged wheel. .shafts · as pastor-ek -54.

.If it has stopped - the main - drive - engine. 37, the auxiliary motor 52 can be started and driven by the finisher -33 through the chain wheel and the chain lock mechanism. 53, by a pinion 54, a gear-wheel 55 and a shaft 51. The locking mechanism between the shaft -51 and the gear 56 then disconnects the shaft 51 from the gear. The reason for this arrangement is that it is possible to drive the finishing device 33 even when the packaging machine. not in action.

Fig. 12a shows, partly in section, a series of interconnected ones. empty packages which come out of the molds 4 of the forming devices 2 for forming the packing material strip 5, in which they are - shaped - to the shape shown, as can be seen from this illustration, the joined row of empty packages 30 is made of a first a wrapping material web 5 folded into - a U-shaped portion and - from a second wrapping material web 6, which is cut at the peripheral portions by transverse cuts 63 to form flaps -64 that are folded to the ends of the U-shaped portions formed from - the first web - 5 - of the packaging material, and - are welded to them. Further, the tops of the folded first wrapping material web 5 are welded to the middle portion of the second wrapping web 6. material -seam weld - -65. The sections in the seam welds 65 are the individual packages 30 of the shape shown in FIG. 12b are separated from each other, wherein each package 30 consists of two U-shaped parts formed from the first wrapping material strip 5 and of. a second strip of packaging material 6 which are welded together in the regions where they contact each other.

A series of interconnected packages 30 according to FIG. -12a cannot be produced by the packaging machine described herein, if the cutting device 61 is used to separate the individual packages. packaging is not removed - or - disabled, which can be easily. execute in cases where a number of interconnected packages -30 are required. . The cutting device -61-can also be arranged such that - a certain number - of interconnected packages -30, for example -two or -five, are separated.

After the general introduction to the packaging machine according to the invention, the details of the device and the device are described in detail below. according to FIG. 1.

Figs. 4a to 4f show the folding and forming process of the first belt. 5 of the packaging material, which is carried out by means 2 for forming the strip of heat. . 1, wherein it is from the first packaging. belt 5. The packaging material is made up of a plurality of connected U-shaped elements. The forming is carried out in such a way that the first strip of the wrapping material can be provided with movement fractures to facilitate the formation of folds. preforming, contacting the - interior - walls of the molds. 4, which are articulated together and form. infinite - chain.

FIG. 4a to 4f. it can be seen that each mold - 4 - is formed by an inverted L-shaped member provided with a vertical part <6 - and a lower part - 67.

The chain formed from the molds -4 is guided on the chain wheels of which. the upper sprocket - is. - driven - by shaft 48. The forming - molds 4 - can - be provided with guide rollers which - run -. A rigid guide track arranged around the circulation path of the belt forming apparatus.

Shaft -49 (Fig. - 2), which is coupled to - the main drive motor - -37, as previously described, - moves the chain formed from - the molds 4 at a uniform speed - in the direction of the arrow (Fig.-4a) . The first wrapping material web 5 to be folded is brought into contact with the forming molds by a 4 rotary molding tool 3 formed as a two-piece leaf consisting of two sheets. These are mounted on a rotating shaft 104 mounted on a reciprocating pivot arm 102 (FIG. 3a), the drive of which will be described in more detail below. The wing-shaped leaf 68, two pieces in the example described, is provided with a lateral curved rolling surface 125 and an end curved rolling surface 124.

The forming process consists in that the chain of the molds 4 moves at a uniform speed in the direction of the arrow (Fig. 4a), said pivot arm 102 imparts to the shaft 104 of the rotary molding tool 3 a movement synchronous with the movement of the molds

In Fig. 4a it is shown how the rotary shaft 104, which is provided with blades 68 in the form of a two-piece wing, is from the barrel over the upper edge 70 of the vertical mold portion 66 while the rotating shaft 104 moves synchronously in the direction of movement. As the rotating shaft 104 moves, the blades 68 in the form of a rotating tool blade 3 also rotate and the first wrapping material web 5 is forced down the straight side of the left sheet 68 in FIG.

Fig. 4b shows the forming process a little later, in Fig. 4c the first wrapping material strip 5 has already been placed with the straight side of the left sheet 68 of the rotary forming tool 3 almost into the corner 69 of the mold 4 and 5 of the wrapping material through the sheet 68 into the corner 69 of the mold 4 shows the beginning of the backward movement of the pivot arm 102, while breaking the contact between the rotating shaft 104 and the upper edge 70 of the mold 4. of the molds 4, presses the end curved rolling surface 124 of one of the wings 68 of the rotating molding tool 3 by rolling the first wrapping material strip 5 onto the lower part 67 of the molds 4 without sliding.

In FIG. 4e, the end curved rolling surface 124 of the leaf 68 has reached the shape of the rotary forming tool 3 of the second corner of the lower portion 67 of the mold 4, whereupon the first wrapping material strip 5 is gradually pressed against the front side by the curved rolling surface 125. considered in the direction of movement of the molds 4, the vertical portion 66 of the mold 4, which comes next from a series of successive molds 4.

In Fig. 4f, the entire lateral curved rolling surface 125 has rolled along the front of the vertical portion 66 of the other mold 4 and the rotary shaft 104 has just contacted the upper edge 70 of the other mold 4 through which the rotary shaft 104 is forced to roll. whereby the first wrapping material web 5 is simultaneously pressed against the upper (edge 70 of the mold 4). In the position shown in Fig. 4f, the rotating shaft 104 is again moved by the pivot arm 102 which synchronizes with the molds 4 to reach the position shown again. 4a.

In the foregoing, a complete cycle has been described which is repeated repeatedly during which the first wrapping material web 5 is formed in the molds 4. It has been found that, due to its stiffness, the wrapping material retains the formed position and shape without contacting the forming surfaces of the molds 4. substantially impaired, which is a prerequisite for successful forming of the first wrapping material web.

Since the first wrapping material web 5 may be provided with a printed text or image of an informational or advertising nature, it is important that the deformation of the first wrapping material web 5 is done in accordance with the printing. It has been found that a pre-printed first wrapping material web 5 that is provided with fold lines to facilitate folding in the mold 4 can easily hold the feature in accordance with the U-shaped portions since folding occurs along fold lines that are made first. in accordance with the modified characters. When using a first wrapping material web 5 which is not provided with fold lines, the supply of the first wrapping material web 5 must be adjusted so that it is in accordance with the printed information, and their position relative to the U-shaped parts is determined by photocell devices not shown in the drawings that are adapted so that the control marks provided on the first wrapping material web 5 and the displacement of the first wrapping material web 5, set as a function of the result obtained, are used by bringing the printing in line In the example shown, the adjustment of the feed of the first wrapping material strip 5 can be done so that the pivot arm 102 on which the rotating shaft 104 is located is arranged to briefly move forward at a speed that is greater than the speed of the molds 4 without having to overcome Such a small adjustment of 1 to 2 mm has no appreciable effect on the appearance and volume of the final package, but is sufficient to maintain the printing in accordance with the folds during forming.

To prevent slipping between the rotating shaft 104 and the first wrapping material web 5 on which the rotating shaft 104 rolls when passing over the upper edge 70 of the molds 4, the rotating shaft 104 surface may be coated with increased friction, such as rubber coating, or grooved. or have other breaks on the rolling surface.

Fig. 3a is a partial cross-sectional front view of the drive train of the rotary forming tool 3, and Fig. 3b shows a perspective view of the same drive train. The drive device of the rotary molding tool 3 consists of a housing 100 provided with an elongated hole 101 through which the rotating shaft 104 is mounted, on which the open forming tool 3 is mounted. The rotating shaft 104 is received in the upper tubular housing 103 of the swing arm 102 and one pin 126 ( The toothed belt 106 is wrapped around a second belt pulley 127, wedged to the shaft 111 (FIG. 3b), to which the cam disc 108 is further keyed and gear

110. The gear 110 is engaged with the driven gear ^! 4a, mounted on a shaft 48, which is driven by a sprocket as mentioned earlier in connection with FIG. 4a, driving a chain composed of links formed by the molds 4.

The lower part of the rocker arm 102 is freely rotatable on the shaft 48 and is therefore not affected by its rotation. The lower part of the swing arm 102 is further provided with rollers 113, 114, of which the first roller 113 abuts the cam disc 108 and the second roller 114 on the control segments 115, such that at least one of these rollers. 113, 114 abuts the circumferential surface of the cam disk 168 or the control segment 115, the rollers 113, 114 being held in the pressure state by either a spring or a pneumatic cylinder. 116, which is connected by a pin 117 to the lower part of the pivoting arm 102.

To maintain the toothed belt 106 in a tensioned state during the reciprocating movement of the pivot arm 102, the toothed belt 106 is provided with a tensioner 107 on which it acts (not shown). spring, provided in column 13, which tries to tilt the tensioner. 107, at the ends of which the tension rollers 122 are provided. As can be seen from FIG. 3b, the toothed belt 106 runs between the tension rollers 122 acting on it. from the outside.

The drive train is further provided with two control segments 115 (FIG. 3b) which are pivotably mounted on pins 121 mounted on the cam disc 108. The inner surfaces of the control segments 115 abut an eccentric 119 rotatable on the shaft 111 with respect to which the pneumatic cylinder 118 or the like, whose piston rod 129 is articulated on the pin 130 of the eccentric 119.

3a, 3b, the movement of the rotary forming tool 3 is required to fold the first wrapping material web 5, the function of the drive train being as follows: Shaft 48, which is also the drive shaft for the machine 2 For shaping the strip by the molds 4, it rotates at a constant peripheral speed and with it the driven gear

109 that engages the gear

110, the gear 110 rotates with the shaft

111, located in the bearing 112, at a speed six times greater than the peripheral speed of the shaft 48 relative to the gear ratio · 109, 110. The second arm pulley 127 wedged on the shaft 111 rotates with this shaft 111 and the toothed belt 106 transmits this rotational movement to the first belt pulley 105, which drives the rotary shaft 104 and rotates the forming tool 3 disposed on the rotating shaft 104. As described in connection with FIG. 4a, the rotating forming tool 3 has not been constrained by the drive device. 3a, the cam plate 108 has two automatic portions positioned directly opposite each other and causes the swinging arm to be rotated. 102 performs a complete reciprocating cycle at each rotation of the cam disc 108.

The cam disc 108 acts on the pivot arm 102 via a first roller 113, for example a pneumatic cylinder 116, by which it is pressed against the curved circumferential surface of the cam disc 108. When the cam disc 108 lifts the first roller 113 when rotating, the pivot arm 102 moves in the same direction as The molds 4 and in synchronism therewith, and when the radius of the cam disc 108 decreases after reaching the maximum, the pneumatic cylinder 116 again compresses the pivot arm 102, i.e. the pivot arm 102 is reciprocating. To prevent the movement of the swing arm 102 on the angular velocity of the first belt pulley 105 and hence on the rotating shaft 104, and to prevent any change in the tension of the toothed belt 106, the drive mechanism is provided with a tensioner 107. the belt 106 is maintained at approximately the same tension regardless of the position of the pivot arm 102, on the one hand, it is prevented. movement of the swing arm 102 caused by ^one rotation of the first angular belt pulley 105, which would cause disturbing · the angular velocity of the rotary shafts 104 ·, which must be constant.

4a to 4f, adjusting the feed of the first wrapping material web 5 to bring any print or the like thereto in agreement with generating the movements can be done so that the pivot arm 102 is moving faster than the molds 4 in a short time, and that in this state the rotating shaft 104 pushes the first wrapping material web 5 a few millimeters forward, around the upper edge 70 of the vertical molding mold part 66. the shaft 104 is achieved by the control segments 115, which are articulated on the pivot 121 of the cam disc 108. As previously mentioned, the inner surfaces of the control segments 115 are adapted to abut the angularly adjustable control eccentric 119 whose angular position is controlled by the second a pneumatic cylinder 118 and a piston rod 1 29 is articulated on the pin 130 of the eccentric 119.

To determine whether the printing on the first wrapping material web 5 is in the correct position relative to the folds made during their formation, the first wrapping material web 5 is preferably provided with pre-printed color marks which can be read by a photocell device.

In the illustrated embodiment, it is assumed that there will be a noticeable misfeed of the first wrapping material web 5, for example by 0.1 µm back for each printing, meaning that the first wrapping material web 5 is offset by a length of ten characters · Supplied with 1 mm error. The preprinted marks are located on the first wrapping material web 5 such that the distance between two consecutive marks determines the exact length of printing of the future package, or determines multiples of that exact length. If, as mentioned above, there is a noticeable misfeed in the first packing material web 5, the mark appears, after a certain number of print lengths, directly on the axis of the photocell device to detect the mark and send a pulse through an electronic amplifier to a valve that allows the air into the second pneumatic cylinder 118, which rotates the eccentric 119 by the piston rod 129 pushed out of the cylinder, whereby its larger radius portions return to the second pulley 114 which engages the control segments 115. As the cam disc 108 rotates, the control segments 115 are lifted by the eccentric 119, so that their ends 131 are pushed over the contour of the cam disc 109. These ends 131 of the control segments 115, when the cam disc 108 exceeds the contour of the cam disc 108, abut mounted on the same shaft as the first roller 113 and is positioned next to it, resulting in a small increase in the speed of movement of the pivot arm 102, which therefore moves faster than the molds 4, at a position where the pivot shaft 104 of the pivot arm 102 rolls over the upper edge 70 of the mold 4. The rotating shaft 104 and the molds 4 slip, which in turn has the rotating shaft 104 pulling with it several mm of the first packing material strip 5, which is additionally between the rotating shaft 104 and the upper edge 70 of the mold. This additional lead causes the marks on the first packing material web 5 to shift, and when no further detection by the photocell device shows any marks, · disconnects the valve to the second pneumatic cylinder 118 and the eccentric 119 returns to the original position in which the control segments 115 are not lifted over the contour of the cam disc 108 as it passes around the second roller 114. After a certain number of feeds of the first wrapping web 5 in connection with performing the folding cycle, new marks appear in the photocell axis and an additional feed of the first wrapping web 5 is achieved. material so that the printing on the first strip 5 of the packaging material is brought back into line with its feed.

The feed drum 23, which has been briefly described in connection with the general description of the packaging machine according to the invention, will be described in more detail below with reference to FIG. 5,

6, 7.

The transfer drum 23 feeds a second wrapping material strip 6, which joins the first wrapping material strip 5, which has been processed by the strip forming apparatus 2 to form a row of joined packed packages by providing the edge portions of the second wrapping material. The wrapping material strip 6 bends downwardly until abutting at the edges of the folded first wrapping material strip 5, after which the first wrapping material strip 5 and the second wrapping material strip 6 are permanently mutually joined by welding the contacting parts. To facilitate the folding of the edges, transverse cuts 63 are made on the second strip 6, the length of which corresponds to the fold height of the folded first strip 5 of the wrapping material, while the distance between the successive folds S3 corresponds to the distance between two successive folds 5 of the packaging material.

In order to connect the second wrapping material strip 6 with the first wrapping material strip 5 while the two wrapping material strips 5, 6 are in motion, it is necessary that the second wrapping material strip 6 is fed synchronously with the first wrapping material strip 5 and it is also absolutely necessary that the second wrapping material strip 6 is fed so that the cuts 63 made on the second wrapping material strip 6 are always positioned in the areas of small vertical folds of the first strip. 5 of the packaging material.

5, 6, 7, the feed drum 23 and the axis of the fastening ring 59 are shown to perform a reciprocating rotational movement. The following tools are provided on the oscillating ring 59: punching die 212 with hollow matrix 213, heating device 203, punching device · 208 and knife 209. Furthermore, there is an adjusting cone 256 operated by a pneumatic cylinder 253, tube 254 for supplying a dehumidifier. The spring thrust pins 257 are connected to radially extending sliding plates 258 which are arranged so that they can be raised or lowered and are located in a region between adjacent planar circumferential sections 2B2 of the feed drum 23.

The drive of the feed drum 23 and the oscillating ring 59 proceeds from the shaft 47 of the drive device already described, driven by the pulley 46, via the gears 225, 226, 228, 229, 237, 238 and further through the cam disc 231 and the cam pulley 232 The entire drive train is mounted on the base plate 239 and a portion thereof is housed in the housing 240 in which it is arranged, the oscillating ring 59 movably in the slide seal 241. The drive train is further provided with a curved disk 242 in which a cam track 244 for cam rollers 244, 246 is provided which acts on the actuating arms driving the tools and devices located on the oscillating ring 59.

As already mentioned, the belt groove

2'0497'9 the pulley 46 is driven by a V-belt 45 and is driven directly by the feed drum 23 mounted on the drive shaft 47. The belt groove pulley 46 is integrally formed with a toothed one. 225, which drives the pinion 226 wedged on the same shaft as the gear 228 (FIGS. 6, 7). The toothed wheel 228 drives a pinion 229 which is keyed on the shaft 230, i.e. on the same shaft on which the cam disc 231a is mounted - the pinion 237. The pinion 237 drives a gear 238 which is free-rotating. mounted on the drive shaft 47 and which is made integrally with a cam disk 242 comprising a cam track 243.

The feeder drum 23 has in the described embodiment twelve equal planar circumferential sections 202, i.e. a contour of a regular triangle, each having a shallow recess 223 on the outer portions for thermoforming the wrapping material. In addition, the outer portions 262 of the planar peripheral sections 202 are provided with apertures 222 through which the aperture in the packaging material is pierced. Each planar peripheral section 202 supports a portion of the second wrapping material strip 6 to the extent that it is pulled off by the wrapping unit. wherein, during the period in which the packaging material is in contact _; feed drum 23, perform all operations, such as punching the hole, re-covering the hole with the homogeneous band 7, embossing - or thermoforming the packaging material - and making cuts in the marginal zones of the second band of wrapping material 6 - up to k - middle part - 26'3.

Since the tools and devices required to perform these operations are fixed to the oscillating ring 59, it is necessary for the oscillating ring 59 to perform twelve complete operating cycles during one revolution of the feed drum 23. However, since the movement of the working tools or - the - device - is - derived - from the curve path 243- of the curved disk 242, the curved disk 242 must rotate at the same speed to give twelve working pulses to the working tools during the twelve complete However, since the curve disk 242 is provided with two identical curve paths 243 offset relative to each other by - 180 °, the curve disk 242 rotates at a speed six times greater than the speed rotation of the feed drum 23.

This speed ratio was taken into account for the sizing of the gears of the drive train.

When the driven belt pulley 4.8 is rotating, the feed drum 23 is driven at the same rotation speed as the belt pulley 46 because the feed drum 23 is keyed on the drive shaft 47, on which the belt keyway is also keyed pulley - 46.

The reciprocating-oscillating ring 59 is driven by the hollow shaft 259 by coupling to the groove - with the arm 233 - on which - the cam - roller 232. is mounted - so that the - cam-roller 232 - is still pressed against - the cam disc - 231, acts on the arm 233 - the pneumatic - cylinder 234, whose piston rod 235 is articulated-connected to the lever 236, integral with the arm 233. Because the oscillating-ring 59 is to twelve twelve times in a single turn of the feed drum 23, the cam disc 231 must rotate twelve times faster than the drive shaft 47, which is achieved by the gear wheels 225, 226, 228, 229.

The curve - disc 242 - with curve paths 243 - is - driven by a pinion - 237, which is keyed - on the same shaft as the cam disc 231, and because - with the curve - disc

242 with curve paths - 243 - is to rotate at half speed - than cam disk 231, the gear ratio between - pinion - 237 and - gear - wheel 238 - 1: 2. In addition, it has a curved disk. - 242- - with curved paths

243 opposite - sense of rotation.

The arm 247 provided with the cam follower 246 is mounted in the boss 283 rotatably mounted on the oscillating ring 59. The nozzle 263 is additionally provided with a first toothed segment 248 which may be - the second toothed segment 249 of the boss - 264, which is similarly rotatably arranged on the oscillating - ring 59. The boss 284 is. In engagement by means of a toothed clutch 250 with a boss 285 arranged also rotatably on the oscillating ring 59, the bosses 264, 265 are connected to the shafts 220, 221.

As shown in FIG. 5, the arms 214, 215 are mounted on the shafts 220, 221. The arm 22 is provided with a hollow punch 213 and the arm 215 is provided with a punching die 212.

As a result of cam movement - 246, rolling - in a curvilinear path 243; it is - that the arm 247 is periodically angularly displaced, so that the shafts also rotate. - 220, 221 - and - with them swinging - arms 214- - 215- provided with a hollow punch 213- and - punching - die 212. If - the cam follower -246 - is forced into - part - curved - tracks 243 - of the largest diameter, the swing arms - 214, 215 counter-causing the hollow punch 213 to penetrate the punching. dies 212 and punches a hole in the second wrapping material web 8 located between the hollow punch 213 and punching die 212. - which then - serves as a filling opening for the final filling of the packages - 30. - Because the punching die - 212 - is located - outside the feed drum 23 and - the hollow punch 213 is located inside - the feed drum - 23, it is necessary so that the feed drum 23 is provided with an opening 222 in the region of operation of the hollow punch 213 (FIG. 6j).

The shaft 268, mounted on the boss 263, is provided with an arm 267 on which a cutting device 219 and a welding jaw 224 are provided for heat welding, and a supply coil 216 of the material web 211 is arranged concentrically with the boss 263, of them204979 let's make it. a cover strip, wherein the strip 211 material. the feed reel 216 is unrolled by the press roller 218. The feed reel 216 and the press roller. · 218. they may be provided with a roughened surface. or. friction. lining. to ensure proper supply of material web 211, wherein. the supply coil 216 is arranged such that it can only rotate with the shaft in. in one direction, while in. in the opposite direction is discarded. Shaft, on. which is incoming. coil 216. fastened. through the freewheel clutch is. powered! not represented by a transfer. from the movement of the oscillating ring 59 which is. fastened to the frame 1 of the machine, or, for example, with a toothed. fixed segment. also. on the driving. the coil shaft. 216. The material web 211 passes through a guide channel 217 between the feed reel 216 and the presser. pulley 218 .až. into a cutting device 219 comprising:. fixed. cutting jaws and movable cutting jaws, loaded. spring. (not shown), the purpose of which is to trim the front portion of the material web 211.

The heating device 203 in the embodiment of the invention comprises three planar circumferential sections

202. feed drum 23 a. consists of a hollow body,. provided with holes; or. slots directed. to the surface of the feed drum 23 through which hot air flows to heat the second web 6 of wrapping material passing therethrough. feeder. drum 23,. a. either for. uniform heating of the second strip. 6 or heating the packaging material. ve. a special shape, of which. grey . to achieve. creation and placement. hole. or slots in the hollow body of the heater. . tract

203. The heating device 203 is connected to the oscillating ring 59 by the holder 206 and therefore performs a reciprocating movement with the oscillating ring 59. The air supply is effected by a supply line. 204, which is attached to. a fan (not shown), the air being forced before the introduction of the du heater body. mechanism 203. browse. around heating element 205, whereupon. the heated air is blown onto. second belt 6. packaging material.

Punching device 208. consists. of a pressure plate with an embossed pattern which. it is adapted to the shallow recesses 223 in the outer portions 261. 262. a feed drum 23, and. further from a knife 209, by means of which the already described cuts can be made in the second packing strip 6. material. Punching mechanism. 208 is arranged on the arm 210 pivoted. shaft 207 which is. firmly attached to arm 245. (Fig. 7j, at the opposite end of which the cam follower 244. is attached) As noted above, the cam follower 244 moves in the curve path 243 of the cam disk 242, and since the cam track 243 has two equal parts arranged opposite to each other, the cam follower 244 will change its position from a portion of the cam track 243 with a smaller radius of curvature to a portion of the cam track 243 and with a larger radius just as the cam roll 24Si therefore raises If the curve path 243 has a greater radius of curvature, the cam follower exerts an arm 245 of an angular swing, thereby rotating the shaft 207 which further causes an angular swing of the arm 210 and a punching tool fixed to the arm. 210 is pressed against one of the planar circumferential sections 202 of the feed drum 23, thereby simultaneously embossing the heated second web 6 of the wrapping material and its contents. · with knife - 209 make cuts.

If it moves. second. lane 6 ·. . ' of the packing material with a uniform feeder. at the feed drum 23, this will occur. this one. working. cycle:

Assuming the seed ring. 59 has reached one end position. a. begins to reverse. in the same. Direction: as. a feed drum 23; synchronously with. him,. are in this. phase of the cam follower 244, 243. v. parts of the curve path 243. curve disc '242,. which . has a smaller .. radius of curvature. . However, v. the moment. se. oscillatory. ring 59. starts moving synchronously with. feeder. drum 23,. reached the curve path. 243. the position in which. . cam rollers. 244, 248 pass to ·. a portion of the curve path 243 having a larger one. the radius of curvature, which. indicates the shoulders. 245, '. 247. angled. deflects. As a result of angular. deflection of arm 247. with arms 214, 215, as. was already ·. stated move. against each other, the hollow punch 213 penetrates into the punching die 212, thereby, in the second web 6. packaging material located between the hollow. punch 213. and punch, die. 212, a hole is punched out, with a portion of the second belt. 6 of the packaging material punched out of this opening is removed as non-adhesive waste.

Simultaneously with the implementation of the embossing. operation with the hole punched in the second belt 6. overwrapping material. cover strip. 211 material. The attachment of the material cover strip 211 is. . going on. so,. that. a portion of the material cover strip 211 through which it can. be homogeneous polystyrene. strip supplied. supply coil 216, with. presses the heated welding jaw 224, which is controlled by a shoulder 247 wedged. on a shaft 266 whose rotation is curved. expensive. 243 ,. the second packing material strip 6 in the region. stamped. filling. The material cover strip 211 is heat welded to the surface layer of the second strip. 6. packaging material. p. narrow .. weld seam around ·. hole in. second belt. 6 of the packaging material. When. welding. the jaw 224 swivels toward. up, cutting mechanism. 219 se. .Presses. downwards and cuts off part of the belt 21.1. material. so that the front part of the cover strip is separated from the rest of the strip 211 of the material.

Next on. several planar. peripheral. sections. 202. a feed drum 23 located in its direction. 2, the second packing material strip 6 heats the heating device. 203, thereby being the second belt 6. packaging material ready for embossing that is happening. on . several. planar peripheral. úse204979-UP 202 of the drum 23 and reaches him ^once: the device 208, which is pressed against the -ohřátý strip 8 of packaging material on which a relief pattern that matches a pattern mělkého- recess 223 made on the outer parts 261, 262 of the feeding At the same time, as the punch 208 is pressed by the arm 210, controlled by the shaft 207, onto the second wrapping material strip 6, the cuts in the edge zones of the second wrapping material strip 6 are made with a knife 209, as explained above.

All of the operations described are carried out simultaneously, with the oscillating ring 59 rotating synchronously with the feed drum 23. As the oscillating ring 59 approaches the return point, the cam rollers 244, 246 move downwardly into portions of the cam track 243 having a smaller the radius of curvature so that the arms -210, 267, 214, 215 are raised and withdrawn so that the oscillating ring 59 can quickly return to its original position, whereupon a new duty cycle begins.

In addition to the protrusions and recesses which form the respective relief pattern in the heated second packing material strip 6, the embossing device 208 may comprise compressed air nozzles or vacuum suction chambers which aid in shaping. Such a suction chamber or compressed air nozzle can be attached above the embossed gun so as to pull down a portion of the cover strip 211 of the material present in the opening, which is then also heated until softened by the heating device 203.

It is important that the second packing material strip 6 is fed synchronously and in accordance with the first packing material strip 5, since any feature on the second packing material strip 6 must be positioned on the supply drum 23 so that each printing This device for feeding the second packing material strip 6 can be provided by radially displaceable plates 258 arranged radially in the feeding drum 23, which are connected to the resilient push pins 257 resting on the surface. The adjusting cone 256 is connected via a control shaft 255 to a pneumatic cylinder 253 which is actuated by a control valve (not shown) for supplying compressed air.

The adjustment is carried out in such a way that the position of the second packing material strip 6 with respect to the feeding drum 23 can be detected by a photocell device or a purely mechanical device. If the inspection shows that the position of the second wrapping material strip 6 is correct within the given tolerances, nothing happens, but if the check shows that the second wrapping material strip 6 is not in accordance with the feed drum 23 and that the tolerance limits If they are exceeded, an impulse is sent to the pneumatic cylinder control valve 253 to allow compressed air to be admitted and its piston pushes the shaft 255 forward, indicating that the adjusting cone 256 is moved to the right in FIG. 6.

Overlapping the adjusting cone 25S acts on the resilient push pins 257 equally spaced therebetween, each resilient push pin 257 slightly lifting said radially displaceable plate 258, thereby increasing the periphery of the feed drum 23, and a plurality of material is fed and printed on the second wrapping material web 6, again within the allowable limits.

As already mentioned, the packaging according to the invention is produced by folding the first wrapping material strip 5 into the molds 4, the second wrapping material strip 6 fed by the feed drum 23 and welded therefrom with the sealing means. a first strip 5 of packaging material, so that closed hollow bodies are formed to the packaging material.

The adjustment and welding of the first wrapping material strip 5 and the second wrapping material strip 6 is effected by means of devices mounted on the column - 13, acting axially reciprocating - and stored - in the fixed bearing 14.

FIG. 10 shows a partial cross-sectional view of the column 13, including the folding device 16 and the closing device 17 provided on the column 13. The slo-up 13 is arranged to flow reciprocally through the arm 301 and the pneumatic cylinder 300, wherein the movement of the column 13 in the direction of movement of the molds 4 is synchronized with them, while the reciprocation in the opposite direction is faster. . A heater -15 is provided on the arm 340 of the column 13, to which air is supplied through a supply tube 22, which is telescopically inserted into a tube connected to the heater 15 moving through the column 13, or the supply tube 22 is connected to the heater. by a heating device 15 with a flexible hose.

The feed tube 19, which fills the goods into the formed packages 30, is located directly above the upper edge 70 of the vertical portion 66 of the molds 4 and parallel to it. In the example shown, the filler tube 19 has a flattened cross section which is long and narrow, the filler tube 19 being preferably made of plastic. To accomplish the work associated with washing the feed tube 19, it can be removable and connected to the feed device via a coupling 355. The goods are supplied through a supply line 20 and the quantity of goods supplied is controlled and controlled by a control valve 356 controlled by a regulator 21.

The folding device 16 consists of folded pulleys 333 operable by a rotary shaft 307 which at the end is connected to a rotating arm 394. The closing device 17 is provided with welding heads 317 connected to an ultrasonic generator with an actuating rotary shaft 308 located in a column 13 which is hollow and in which the aforementioned rotary shaft 307 is mounted

307 is actuated by a pivot arm 303 mounted at the yoke end.

Referring now to FIG. 10, a cutting device 18 is provided with a pivotable cutting plate 312 disposed centrally and movable with a column 13 carrying cutting edges and a resilient arm 310 operated by a cam disc 311 which is connected by a pivot arm 341 to a pivot arm 341. thrust roller 309.

Hereinafter, a folding device 16, a closing device 17 and a cutting device 18 are described in more detail, together with the functions of all of these devices in connection with FIGS. 8, 9, 11, and FIG. 11 shows the mast control device 13. and a working device mounted thereon.

FIG. 8 shows a folding device 16 already described briefly, which consists of a housing 329 at a column bed 13 in which two rotating shafts 357 are mounted, one on each side of the housing 329. Folding flaps 333 are mounted on the rotary shafts 357, the control arm 328 for each of the folding flaps 333 being integrally formed with one of the rotating shafts 357, while on the other rotating shaft 357 it is freely rotatable. Each of the pivot shafts 357 is provided with a pivot arm 332 which is articulated to the linkage 331. The pivot bars 331 are articulated to the arms 330 mounted on the pivot shaft 307 so that rotation of the pivot shaft 307 causes the pivot bars 331 to move. rotating the pivoting arms 332 and rotating the rotating shafts 357 further, thereby pushing the folding flaps 333 with the plates 339 and either - lifting upwards and outwards, or pivoting downward and inwardly into the position shown in Fig. 8. The drive shaft 49 is driven by a gearwheel 41. In a curved path 399 wedged on the drive shaft 49, a cam roller 351 mounted on an arm 350 rotatably mounted on a pin 352 is guided on its opposite side. at the end, a coupling 355 with a spigot is provided for connecting the rod 354, which is further provided with a spigot 306 -kulovým coupling pin is connected -s rotating arm 304, keyed on a rotatable shaft 307th

Na -obr. 8 is shown how a second packing material strip 6, provided with cross-sections 63, is guided by a guiding device 335 through a gantry 15, the upper side of which is provided with exhaust apertures 336, which are arranged in a pattern corresponding to the flap zones 64 for their - heating in connection with - their welding. As already mentioned, the column 13 with the associated heater 15 is moved in accordance with the molds 4, the movement being adjusted such that the flaps 64 are located on the heater 15 such that the pattern of the exhaust ports 336 is within the edge zones of the flaps. 64. Because the machine described here is designed so that the operations are carried out by the devices mounted on the column 13 simultaneously on two packages 30, the heater 15 occupies a width corresponding to two flaps 64 and in addition is provided with two complete exhaust patterns. Furthermore, the width of the folding flaps 333 is so large that it folds downwardly at the same time on the two flaps 64 to come into contact with the shaped first packing material web 5, in the region corresponding to the two molds 4 and the two welding heads 317 (FIG. 9), which are arranged for simultaneous welding of two packages 30.

Also shown in FIG. 8 are pressure cams 338 mounted on folding flaps 333 that cooperate with a stationary cam 337 to hold down the flaps 64 of the second wrapping material strip 6 downwardly with great force exerted on the pressure plate. 339 of the folding flaps 333 when the press rollers 338 move on the stationary cam 337.

Figure 9 illustrates a closure device 17 which is of the ultrasonic type, although hot welding or, in certain cases, high frequency welding may also be used. The closing device 17 is provided with two ultrasonic oscillating jaws 318, to which electrical power is supplied through two inlets 319. The ultrasonic oscillating jaws 318 are supported on a yoke 320, hinged on a housing -325, mounted on a column 13. The closing device 17 is further provided with two welding heads 317 which, together with the ultrasonic swiveling jaws 318, are movably disposed between two positions, and in a first position in which the welding heads 317 are pressed against the upper edges - 70 - of two adjacent molds 4, the - first - the wrapping material web 5 welds with a second wrapping material web 6 and a second position in which the welding heads 317 are lifted.

The welding heads 317 are actuated by a control arm 323 passing through a bore in the housing 325 -a connected to the hollow rotary shaft 308. As shown in FIG. 11, this hollow rotary shaft 308 is connected at one end to the rotary arm 3B3. which is connected by a ball joint 305 to a rod 358 connected further by a ball joint 359 to an arm 360 which is provided with a pulley (not shown) moving in a curved path 348. The arm 360 is suspended on the machine frame 1 just as arm 350 '. and in the illustrated case, the linkage 353 is connected to an arm 360 eccentrically supported by a rotating plate 362 and a spring 361, the spring 361 being, for example, a pneumatic cylinder with an easily adjustable pressure to adjust the welding pressure and take over any transmission movement of the curve track 348.

To retain the end surfaces of the packages during welding, the machine is provided with thrust rollers 315 controlled by a pneumatic cylinder 316 by means of an arm 324.

Separation of the filled and closed packages 30 is effected by a cutting device 18 (FIG. 10), which is provided with a cutting plate 312 with cutting blades 314 (FIG. 9) which is pivoted on a central shaft 313 mounted on the support 326 integrally assembled. Column 13.

The cutting device 18 is further provided with a thrust roller 309 whose shaft 327 (FIG. 9) is mounted in a pivot arm 341 (FIG. 10) connected to a flexible arm 310 (FIGS. 10, 11) at the end of which a cam is arranged. the cam pulley 311 is synchronized with the pillar drive 13 so that the cam pulley 342 is lifted during the rapid reciprocating movement of the pillar 13, while the pillar 13 moves in accordance with the first packing material belt S and the second packing material strip 6 is the cam roller 342 in the down position. This indicates that the pressure roller 309 of the cutting device 18 is also raised during the reciprocating movement of the column 13, but when the column 13 is synchronously moved with the first and second packing material strips S, 6, it is pressed against the cutting plate 312.

The slitting of the packed packages 30 is cut so that the pressure roller 309, which is lifted during the reciprocating movement of the column 13, drops down at the same time as the synchronous movement of the column 13 begins with the first and second packing material strips 5, 6. Thereafter, the pressure roller 309 rolls to the leading edge of the cutting plate 312, thereby compressing down the cutting edge 314 in the front onto the weld seam of the first and second wrapping material strip 5,6 performed in an earlier operation, and cutting the cutting edge 314 separates the filled and a sealed package 30 in the weld seam. When the pressure roller 309 is further rolled onto the cutting plate 312, it is tilted somewhat on the central shaft 313 so that the cutting lip 314 is pressed against another weld seam, thereby separating the filled and closed package 30.

The column 13 is driven as follows:

The column 13 is hinged on an arm 301 wedged on a shaft 346 on which another arm 345 is fitted, which is provided with a cam follower 344 abutting the cam disc 343. a constant pressure exerted on the column 13 or on the arm 301 by the pneumatic cylinder 300 (FIG. 10). When the column 13 moves synchronously with the supply of the first and second packing material belts 5, 6, i.e. downwardly (see also FIG. 1), it is against the resilient force of the pneumatic cylinder 300, thereby compressing its air volume. The movement is controlled by the cam disc 343 driven by the drive shaft 49, the convex portion of the cam disc 343 being constructed such that the movement of the column 13 is synchronized with the feed of the molds 4 as well as the feed of the first and second belts 5, 6 of packaging material. When the cam follower 344 passes; instead of the cam disc 343 as it moves from the convex portion of its path to the concave portion, the cam follower 344 is pressed against the cam disc 343 by a pneumatic cylinder 300 acting on the column 13 or on the arm 301.

As can be seen from FIG. 11, the concave portion of the cam disc 343 is steeper than its convex portion, and its center angle is smaller with the cam disc 343. This indicates that the column 13 guided by the cam disc 343 is controlled by the concave portion of the cam disc 343 and is accomplished by the interaction of the pneumatic cylinder 300, which pushes the column 13 rapidly upward.

When the cam follower 344 has reached the lower position on the cam disc 343, i.e., the smallest radius portion of the cam disc 343, the upward movement of the column 13 stops and moves downward synchronously with the infeed of the first and second belts 5, 6 of packaging material. due to the increasing radius of the cam disc 343, such that the cam follower; 344? it is pushed outwards by it. thereby rotating the shaft 346 and thereby angularly rotating the arm 301 on which the column 13 is suspended. In order to prevent the column 13 from rotating during its reciprocating movements in the axial direction, two guide rollers 363 are provided for guiding the column 13 in the axial direction.

The procedure during shaping the sheets of packing material, filling and closing the packages is as follows:

The first wrapping material web 5, which is molded by the rotating molding tool 3 into U-shaped panels, is in contact with the molds 4 connected to an endless chain, driven at a uniform speed. The feed drum 23 feeds the second wrapping material strip 6 over the upper edges 70 of the molds 4 so as to come into contact with the first wrapping material strip 5. Between the two packing material belts 5, 6, a flat filling tube 19 is provided, which is connected via a control valve 356 to a container containing goods, such as milk, water, wine or the like, with which the packages 30 are to be filled.

Assuming that the column 13 has just reached top dead center, that is, it has completed the reciprocating movement and begins to move synchronized with the supply of the first and second packing material belts 5, 6, the heater 15 mounted on the column 13 is in the hot air position. fed through the exhaust ports 336 (FIG. 8) to the underside of the flaps 64 of the second wrapping material strip 6 and to the peripheral portions of the first wrapping material strip 5, which slightly protrude from the molds 4. supply air to those portions of the first and second packing material webs 5, 6 whose surface keeps the layer of thermoplastic material to be heated to the welding temperature, wherein heating occurs throughout the downward stroke of the column 13 until its bottom dead center when the column 13 begins reciprocating movement.

Simultaneously with the heating of the two wrapping material belts 5, 6, the heated flaps 64 of the second wrapping material strip are folded by folding flaps 333 down onto the somewhat protruding and heated edge portions of the shaped first wrapping material 5, of the material heated to the welding temperature in contact with each other to achieve a tight and mechanically strong weld between the joined parts of the two belts 5, 6 of the wrapping material.

After welding the flaps 64 of the second strip 6 to the lateral edges of the first strip 5, a series of joined, sealed packages 30 are formed, the inner space of which is interconnected by open cuts formed between the tops of the folds of the first strip 5 and the middle part of the second strip 6 of wrapping material. The feed tube 19, which terminates just in front of the closure device 17, passes through these cut-outs. The feed tube 19 feeds goods through which the packages 30 are filled, but the level of the goods must be maintained such that the goods do not enter the un welded portion that is, up to the fold flaps 333.

At the time when the welding regions of the two wrapping material belts 5, 6 are heated and the already heated flaps 64 of the second strip 6 are folded by folding flaps 333 down, the final closure of the filled packages 30 is achieved by welding head 317 [ giant. 9] presses on the upper edge 70 of the molds 4 when the column 13 begins to move downward synchronously with the molds 4. As previously mentioned, this is due to the rotation of the rotary shaft 308 by the arm 360 guided by the curve path 348, which acts on the pivot arm 303 of the pivot shaft 308 via a rod 358.

After pressing the welding heads 317 onto the two wrapping material belts 5, 6, which are in contact with the region above the upper edge 70 of the molds 4, the ultrasonic swiveling jaws 318 are engaged to deliver the ultrasonic energy required for welding.

Separation of the individual packed packages 30 also takes place during the downward movement of the column 13, so that the pressure roller

309 of the cutting device 18 rolls, as previously mentioned, over the cutting plate 312, thereby pressing the cutting edge 314 of the cutting plate 312 onto the seam weld performed by an earlier operation, and cutting both strips 5, 6 of the wrapping material.

All of the described operations are carried out simultaneously on different portions of the shaped strips 5, 6 of the wrapping material at the time the column 13 runs a distance that is slightly less than the lengths of the packages 30, the length of the package 30 being parallel to the axis 13. At the end of the operating cycle, the folding flaps 333 are opened again, the welding heads 317 are lifted, whereupon the column 13 is given a rapid upward movement by the pneumatic cylinder 300, which is also caused by the cam disc 343. Since it is important that the folding flaps 333 of the welding head 317 and the cutting edges 314 are in the correct position relative to the moving molds 4, and since the operations described herein by way of example are carried out simultaneously on two packages 30, adapted so that the time for one working cycle, including its reciprocating movement, corresponds exactly to the time required to move the molds 4 by two lengths of the package 30.

In the embodiment described, it has been assumed that the packages 39 formed on the packaging machine according to the invention have the shape of a parallelepiped. However, it has been found that it is possible to modify the shape of the packages produced within wide limits without departing from the scope of the present invention. For example, it is possible to construct the molds 4 as endless chain links having an inverted T instead of L, or construct the links such that the formed U-shaped portions of the first packing material strip 5 have a rounded, for example semi-circular base instead of a flat base.

The formed wrapping material web 5 then has a U-shaped cross-section with a rounded base. In this case, the second wrapping material strip 6 must also be somewhat varied and instead of simply making cuts in the edge zones of the second wrapping material strip 6, the wrapping material strip can be stamped with a curved punch so that the flaps 64 of the second wrapping material strip 6 have a rounded outer part It is flush with the rounded section of the shaped first wrapping material strip 5 so that in this case the packages 30 have rounded sides, giving them a cup shape.

Claims (25)

SUBJECT A machine for producing containers, filling them with goods and sealing them into impermeable packages, which is provided with a first device for shaping a first continuous web of wrapping material into an endless row of interconnected U-shaped sections, a second device for attaching a second continuous web a fourth device for welding adjacent portions of the second endless belt to the first endless belt to form an endless row of hollow wrappers from the two endless bands of packaging material, the fifth A device for filling the resulting hollow containers with goods and a sixth device for closing the filled packages, characterized in that the first device (2) for forming the first packing material strip (5) is formed by forming molds (4) connected in the link chain, which are displaced in accordance with the supply of the first wrapping material web, and the second wrapping device is provided with a feed drum adapted to be synchronized Feeding a second strip (6) of wrapping material with a feed of the molds (4) of the first device (2). Machine according to claim 1, characterized in that the first device (2) for forming the first packing material strip (5) with a continuous link chain of the molds (4) movable at constant speed is provided with a rotary shaping tool (3) in the shape of a two-leaf wing. mounted on a rotating shaft (10-4) mounted in the machine frame (1), at least one lateral rolling surface (125) and at least one end curved rolling surface (124) are arranged on the rotary forming tool (3), Adapted to press the first wrapping material strip (5) into the molds (4) and mold it on their inner walls. Machine according to claim 2, characterized in that the curved rolling surfaces (124, 125) of the rotary molding tool (3) have the same radius of curvature and are located on opposite sides of the rotating shaft (104) of the rotating molding tool (3). The machine according to claim 2, characterized in that the rotating shaft (104) of the rotary forming tool (3) is mounted on the upper end of the pivot arm (102) with a reciprocating rocking motion. Machine according to Claim 4, characterized in that the pivot arm (1.02) is supported by a lower end freely rotatable on the shaft (48) and is provided with rollers (113, 114), of which the first roller (113) is pressed by pneumatic and a second roller (114) is pressed by a pneumatic cylinder (116) onto the control segments (115), the cam disk (108) being keyed onto the shaft (111). carrying the gear (110) engaging the gear. wheel (109) keyed on the shaft (148). 6. A machine according to claim 1, characterized in that the molds (4) arranged in series in an endless chain link form a series of U-shaped spaces between them, each of which is defined by a lower part ( 67) and two lateral vertical portions (66). Machine according to Claim 6, characterized in that the molds (4) are formed by L-shaped L-shaped links. Machine according to claim 7, characterized in that the chain-shaped links of the L-chain of the molds (4) are guided by chain wheels, the upper of which is fixed to the shaft (48). The machine of claim 2, wherein the rotating shaft (104) is reciprocatingly guided in the elongate hole (101) of the housing (100) above the upper edge (70) of the L-shaped vertical section (66) of the L-shaped cell. between the rotating shaft (104), the upper edge (70), the end curved rolling surface (124) and the lateral curved rolling surface (125) of the at least one sheet of the rotating forming tool (O) is a first wrapping material strip (5). Machine according to Claims 2 and 9, characterized in that the end curved rolling surface (124) of the at least one blade of the rotary forming tool (3) lies at the same distance from the axis of the rotating shaft (104) as the corner (69) (66) and the bottom (67) of a mirror-inverted · L. 11. The machine according to items 2, 9 and. 10, characterized in that the arc length of the end curved rolling surface (124) of the forming tool (3) is equal to the length of the lower part (67) of the L-shaped inverted member and the arc length of the side rolling surface (125) of the forming tool (3) is · Equal to the length of the vertical portion (66) of the L-shaped inverted cell 12. The machine of claim 1 wherein said feed drum mounted on said drive shaft comprises planar circumferential sections (202) equal to the length of said lower portion (67) of a L-shaped inverted cell. and each having a central portion (260) and an outer portion (261, 262), wherein the length of the central portion (260) is equal to the length of the molds (4) and the length of each of the outer portions (261, 262) is equal to the vertical portion (66) a mirror-inverted I. forming mold (4). The machine according to items 1 and 12, characterized in that the outer parts (2161, 2Θ2) of the peripheral planar section (202) of the feed drum (23) are provided with a shallow recess (223). Machine according to one of Claims 1, 12 and 13, characterized in that it is coaxial with the feed drum (23), the drive shaft (47) of which is driven by a belt groove roller (46) via intermediate gears (225, 226, 228, 229). 237, 238) from a shaft (48) driven by belt pulleys (44, 42), from a drive shaft (49) through gears (39, 40, 41), from a main drive motor (37) equipped with a gear (38), on the output shaft of which the output gear wheel (39) of the gear wheels (39, 40, 41) is provided, there is provided a slip ring (59) mounted on a hollow shaft (259) rotatably mounted on the drive shaft (47); a arm (233) provided with a cam follower (232) at its free end in contact with the cam disc (231) between which the gears (225, 226, 228, 229) are engaged by the drive shaft (47). Machine according to one of Claims 1, 12, 13 and 14, characterized in that a dispensing device (60) of a homogeneous plastic material strip (7), a punching device (600) of a second belt are arranged on the oscillating ring (59). (6) of wrapping material, a cutting device (61) of the second wrapping material strip (6) and a heating device (62) of the second wrapping material strip (6). Machine according to one of Claims 1, 12 to 15, characterized in that the applicator (60) is provided with a cutting device (219) of the edge of the second packing material strip (6) with transverse cuts (63) perpendicular to its axis, at least at a depth the height of the vertical portions (66) of L-shaped cells. Machine according to one of Claims 1 to 12, characterized in that radially displaceable plates (258) are provided between the planar circumferential sections (202) of the feed drum (23). Machine according to one of Claims 1, 12 and 17, characterized in that the radially displaceable plates (258) are provided on the inside with resilient push pins (257) whose free ends are supported on an axially displaceable adjusting cone (256). 19. The machine according to claim 1, wherein: - a camshaft (242) having two cam tracks (243) in which the cam rollers (244, 246) are rotatably supported is mounted on the drive shaft (47). at the free ends of the arms (245, 247) mounted on the oscillating ring (59). 20. A machine according to claim 1, 14 and 19, characterized in that a gear (238) coaxially aligned with said curve disk (242) is engaged with a pinion (237) on whose shaft a pinion ( 229) which engages a gear (228) on the shaft of which a pinion (226) is engaged, which engages a toothed wheel (225) of a belt pulley (46) wedged on a drive shaft (47). ) of the feed drum (23), wherein the transmission ratio between the drive shaft (47) and the cam disk (242) is 1: -2 / n to fast when n is the number of planar circumferential sections (262) of the feed drum (23). 21. The machine according to claim 1, characterized in that it is attached to the machine frame (1) axially displaceably parallel to the second packaging belt (6) downstream of the feed drum (23) in the direction of movement of the second packing material strip (6). The material of the column (13) on which the housing (329) of the folding device (16) is supported. which carries control arms (328) on the rotatable shaft (357), the folding flaps (333) of which are fixed at their free ends, the arms (332'J connected by rods (331) being fixed on the rotary shaft (357) ) with a shoulder (330) mounted on a rotating shaft (307) passing through the column (13). Machine according to Claim 21, characterized in that a heater (15) in the form of a hollow body, connected to a source of hot air and provided on a wall facing the lower side of the second belt (6), is provided on the column (13). ) of the packing material exhaust-holes (336) hot? air, arranged along the edge portions of the flaps (64) between the cross-sections (13) of the second packing material strip (6), the length of the heating device (15) being the width of the two flaps (64). A machine according to any one of Claims 2 to 22, characterized in that - the heating device (15) - is attached to the housing (329) of the folding mouth of the swarm (16). A machine according to item 1, characterized in that the link chain of the molds (4) of the molding die (2) for forming the first packaging material (5), comprising packaging goods (30), it is closed at the lower end by a finite belt. a conveyor (28) comprising a plurality of individual belts (272) wrapped around the end rollers (29) and the conveyor wheel (27) provided with protruding radial fingers (271) adapted to receive the packages (3) and hand them over into the finishing device (33). 25. A machine according to claim 24, characterized in that the radial fingers (271) of the conveyor wheel (27) extend into the gaps of the system of individual belts (272) of the endless belt conveyor (28). (