US3619979A - Packaging machine - Google Patents

Packaging machine Download PDF

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Publication number
US3619979A
US3619979A US867324A US3619979DA US3619979A US 3619979 A US3619979 A US 3619979A US 867324 A US867324 A US 867324A US 3619979D A US3619979D A US 3619979DA US 3619979 A US3619979 A US 3619979A
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Prior art keywords
container
mandrel
mandrel wheel
mandrels
wheel
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Expired - Lifetime
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US867324A
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English (en)
Inventor
Kjell Halvard Martensson
Lars Anders Karlsson
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Tetra Pak AB
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Tetra Pak AB
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • B65B3/025—Making parallelepipedal containers from a single carton blank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B31B50/282—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms involving stripping-off formed boxes from mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • B31B50/30—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving
    • B31B50/32—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving in circular paths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding

Definitions

  • This invention relates to a packaging machine for the production of filled and sealed packages from pre-produced blanks of a thermoplastic-coated material, e.g. plastic-coated cardboard, provided with fold lines to facilitate folding, comprising an intermittently rotatable mandrel Wheel carrying mandrels, equipment for raising up the container blanks into the shape of a tube and for placing the raised-up containers onto the mandrels, equipment for the forming and sealing of a bottom on the container blanks placed onto the mandrels, a conveyor fitted with holders that can be moved, preferably in the horizontal plane, equipment for moving the container blanks processed and fitted with bottoms on the mandrels, to the holders in the said conveyor, and equipment for pre-folding, filling and sealing of the containers carried along in the said holders.
  • a packaging machine for the production of filled and sealed packages from pre-produced blanks of a thermoplastic-coated material, e.g. plastic-coated cardboard, provided with fold lines to facilitate folding, comprising an intermittently rot
  • Packages of the gable-top type have been used for a long time in packaging technology. These are almost always manufactured from pre-produced blanks which are provided with a suitable fold-line pattern in order to facilitate raising-up and forming of the packages by folding the areas forming the top and bottom respectively down into their final positions.
  • the said container blanks are nowadays most often coated with a thermoplastic material such as polythene, the thermoplastic layer being utilised both for making the package liquid-tight and for sealing the package by the application of heat and pressure so that it is secured in the raised position.
  • the need for a packaging machine that can be converted for different package sizes is particularly great as far as small and medium-sized dairies are concerned since it is far too expensive to purchase a number of packaging machines.
  • the above drawbacks of known packaging machines are avoided by means of the machine in accordance with this invention, which is characterised by the mandrel wheel having two different sets of mandrels of different cross sectional areas each set comprising 11, number of mandrels; by the mandrel wheel being designed to be rotated intermittently between dif- Patented Nov.
  • FIG. 1 shows a perspective view of the machine
  • FIG. 2 shows a side elevation of the machine
  • FIGS. 3 and 3a show cross sections of the mandrel wheel
  • FIGS. 4 and 4a show the mandrel wheel with various items of interacting equipment
  • FIGS. 5 and 5a show a detail of a press unit and associated pressure relieving mechanism
  • FIG. 6 shows a partial section of a puller mechanism
  • FIG. 7 shows a container blank
  • packages are manufactured from pre-produced container blanks made from thermoplastic-coated cardboard or similar material.
  • An example of such a container blank is shown in FIG. 7, in which the container blank 4, which is initially fiat, has been raised up to form a tube with a square section.
  • Production of the packaging blank 4 is accomplished by a sheet of plastic-coated cardboard, after the application of pressure if necessary, being pressed out along the desired shape and provided with fold lines 103 which facilitate folding of the container blank.
  • the cardboard blank After the cardboard blank has been pressed out, its two longitudinal edges are united in a longitudinal joint :104 which makes possible raising-up of the blank into the shape of a tube.
  • the bottom end 35 of the container blank 4 exhibits two larger rectangular bottom end areas 105 and 106, as well as two smaller triangular bottom end areas 107 and 108, which through the fold-back areas 109 and 110 are joined to the larger flaps 105 and 106. All the said end areas are separated from one another and from the container body 111 by means of the fold lines 103 provided in the packaging material in order to facilitate folding.
  • the top portion 113' of the container blank exhibits much the same folding pattern as the bottom portion, but since the top portion is not to be folded in such a way as to produce a flat top but a gable top, the dimensions of the areas forming the top are different.
  • the areas 113 forming the top are in addition joined to scaling areas 112 which are designed to be brought together to form a flat fin, in which the sealing areas have been sealed to one another so as to form a leakproof and durable joint.
  • Both the top and bottom portions are formed in the same general manner, but for the sake of simplicity only the folding operation used for the bottom portion will be described here, which folding is accomplished by the smaller triangular areas 107 and 108 being folded in over the opening of the container blank, after which the larger flaps 105 and 106 are also folded in over the opening of the container blank, and at the same time the fold-back flaps 109 and 110 are folded in against the triangular flaps, so as to be situated at the conclusion of the folding operation between, and in contact with, the larger and smaller flaps, in which position the flaps are sealed to one another with the aid of heat and pressure.
  • the top portion of the package is formed in the same general Way, but with the difference that the areas forming the top, by virtue of their dimensions, cannot be folded in completely over the opening of the container, but only to a position in which the opposing pairs of areas meet each other.
  • the sealing areas 112 are folded against one another to form a fiat fin, the smaller sealing areas being folded in, concertinafashion, between the larger ones.
  • FIGS. 1 and 2 For the sake of clarity, a general specification of the packaging machine will be given below first, mainly by reference to FIGS. 1 and 2, after which certain constructional components or elements of the machine, which in accordance with the invention are characteristic for the machine and interact with one another, will be specified in greater detail.
  • the fiat container blanks 1, which have not yet been raised up, are taken out of the storage unit 2, and at the same time the container blanks are formed into a tube 4 which in this case has a square section.
  • the pusher unit 3 which consists of a rotatable chain fitted with carriers 9, the raised-up container blanks 4 are pushed onto a mandrel 5 situated on a mandrel wheel 6 which has been brought into position in front of the pusher unit. (This position is denoted on the drawing by I.)
  • the mandrel wheel 6 indexes to the next stop, and since the indexing angle in this case is 60, this means that the mandrel wheel rotates 60 anticlockwise to the position II, after which the mandrel wheel again stops.
  • the bottom portion 35 of the container blank 4 placed onto the mandrel 5 is situated right in front of a pre-folder unit 7 actuated by an operating unit 30, preferably a pneumatic cylinder.
  • an operating unit 30, preferably a pneumatic cylinder With the aid of the control unit 30, the pre-folded unit 7 is moved up to the bottom portion 35 of the container blank 4 protruding from the mandrel 5, whereupon the leaves of the pre-folder unit 7 are folded in against the bottom portion of the container blank, in order to pre-fold or soften up the previously provided fold lines situated in the bottom portion of the container blank 4.
  • Pre-folding is however stopped before the wall areas of the container blank, which are to form the bottom, have been folded right into their final positions, and, owing to the elasticity of the material, the portion 35 of the container blank 4 protruding from the mandrel 5 will regain the same general position which it had before the pre-folding operation.
  • the mandrel wheel 6 again indexes, and stops in position III, in which position the pre-folded end portion 35 of the container blank is situated right in front of a heating device 8 which can be raised and lowered.
  • a heating device 8 By lowering the heating device 8 down into the raised-up bottom portion 35 of the container blank 4 and blowing a hot gas, preferably air, against the outer parts of the end portion which are intended to act as sealing areas, the thermoplastic coating on these parts is heated to such an extent that the thermoplastic coating softens.
  • a hot gas preferably air
  • the heated-up parts of the bottom portion 35 are cooled down at the same time as the areas of the container blank 4, which form the bottom, are pressed together between the pressure plate 10 and the end piece of the mandrel 5, the heated-up thermoplastic layers, once the heated-up surfaces have been joined by surface fusion, and the areas forming the bottom are thus held together in the compressed position, are caused to form a flat liquid-tight bottom.
  • the pulling-off operation is carried out by the puller 11 being raised by an operating unit 38, e.g. a pneumatic cylinder, to a position such that the suction cup 37 comes into contact with the fiat bottom of the container 33.
  • an operating unit 38 e.g. a pneumatic cylinder
  • the suction cup 37 is connected to a source of vacuum that is not shown here, which means that the suction cu attached itself firmly to the bottom of the container 33.
  • the puller 11 is now given a downward movement, the container 33 is drawn off the mandrel 5 and is lowered in between holders fitted onto an intermittently moving chain conveyor 13, by means of which the container 33 removed from the mandrel wheel 6 is given a mainly horizontal travelling motion.
  • the mandrel wheel 6 indexes to position I, in which position a new container blank 4 is placed onto the mandrel 5 by means of the pusher unit 3.
  • the conveyor 13 consists of two parallel endless chains fitted with holders 97, pairs of holders situated opposite each other on the two chains forming between them a space 98 such that a container 33 can be placed into it upright.
  • a container 33 is drawn off the mandrel 5 by means of the puller 11 and is moved downwards, it is inserted between the two chains 13 and into the space 98 defined by the holders 97.
  • the suction cup 37 releases its hold and is disengaged from the container 33 which is now in position between the holders 97 connected to the conveyor chain 13.
  • the conveyor chain is moved intermittently to the left in FIGS. 1 and 2 for each indexing of the wheel, the level of the containers 33 being determined by the fact that their bottoms slide along a track 12.
  • the top part of the container 33 is prefolded by a pre-folder 14 affixed to a yoke 25 which can be raised and lowered.
  • Pre-folding is effected by triangular leaves 40, incorporated in the pre-folder 14, being folded in against two opposite triangular side areas of the top part 41, the remaining side areas being at the same time folded in over the opening of the container and locating between themselves the said triangular areas.
  • the prefolding operation is however only intended to pre-fold or soften up the fold line pattern produced on the container blank in advance, with the aim of defining the fold pattern required to form the top closure of the container, and the pre-folding operation is therefore not completed, the pro-folder 14 being raised to its upper position when the fold pattern has been pre-folded.
  • position B which in the example shown is situated a container holder division away from position A
  • the opening of the container 33 is expanded by means of an expander 15, which opening has been somewhat reduced in area during the pre-folding operation, as a result of the fact that the top areas of the container 33 do not completely return to their initial positions.
  • the pre-folder 14 and the expander 15 may with advantage be placed on a common yoke 25, which may in turn be connected with an operating rod 43 common to both the units 14 and 15, the vertical movements of the rod 43 being steered by a cam 31 fitted onto the drive shaft.
  • the prefolded container 33 is at position C, i.e. right underneath the filling unit 16, through the agency of which is a preset quantity of liquid is poured into the container, after which the filled container, intermittently and synchronously with the indexing mechanism, is moved to position D, where the opening of the container is situated right underneath the top heating unit or top oven 17.
  • the top heating unit 17, like the bottom heating unit 8, consists of heating elements provided with holes, hot air being blown through the said holes which are arranged in such a pattern that heat is only supplied to those parts of the top area 41 which are to be sealed to one another.
  • Hot air is obtained by burning gas in a special combustion chamber 28, after which air is blown through the combustion chamber and out through the holes on the heating elements.
  • Heating of the sealing areas at the top part 41 of the container 33 is accomplished by the top heating unit 17 being lowered into and over the top part of the container 33, so that the heated air blown out through the said holes largely impinges on the thermoplastic-coated sealing areas at right angles.
  • the thermoplastic material is quickly heated up to its softening temperature, after which the top heating unit 17 is raised to a point outside the opening of the container 33, after which the container is moved from position D to position E, the sealing areas of the top part 41 being simultaneously folded in over the opening of the container with the aid of the guide rails 114.
  • Folding-in of the top part 41 of the container 33 is effected by the said triangular areas being folded in, Concertina-fashion, between the outer areas forming the top, in such a way that the sealing areas are brought together into a fin, which in position E is compressed between two interacting compression blocks 18, which are cooled.
  • position E is a position labelling, date stamping or similar operations can be carried out with the aid of a stamping mechanism, marking mechanism, labelling machine or similar.
  • the packaging machine is powered by an electric motor 20 with a directly-coupled gear box of e.g. the worm or spur gearing type, the output shaft of which is denoted 44.
  • a directly-coupled gear box of e.g. the worm or spur gearing type
  • the output shaft 44 there is fitted by means of a sliding clutch a chain wheel 45, which drives through a chain another chain wheel 46 that is fitted on the input shaft 48 of bevel gearing 47.
  • a chain wheel 49 On the same shaft 48, there is fitted another chain wheel 49 which through a chain drives a chain wheel 51 fitted on the input shaft 50 of the indexing gear 23 of the mandrel wheel 6.
  • the output shaft 52 of the bevel gearing 47 carries a chain wheel 54 which through a chain transmission drives cams that govern the movements of the filling unit 16 and also operate the reciprocating pump forming part of the filling unit.
  • the main shaft 21 from the bevel gearing 47 carries cams, one set 31 for driving and governing the vertical movements of the operating rod 43 and thereby also for operating the pre-folder 14 and the expander 15, the other set 32 for driving and governing the movements of the top heating device 17.
  • the main shaft 21 also actuates an indexing gear 24 which drives the chain conveyor 13.
  • the flat container blanks 1 are thus taken out of the storage unit 2 and formed into a tube with the aid of suction cups, which are capable of swivelling, fitted to an arm 115, the swivelling motion of which may e.g. be obtained with the aid of a pneumatic cylinder.
  • the operations along the mandrel Wheel are also carried out by items of equipment which are actuated or governed by pneumatic cylinders, and there is a separate pneumatic cylinder fitted to lift the top sealing oven 17 to a position further away from the container 33 than the upper position which can be reached by the cam 32, in the event of breakdowns or when the machine is stopped. Further equiment that is driven separately and with the aid of pneumatic cylinders are the sealing blocks 18 and possibly also the marking unit 34.
  • the machine is to be equipped for the production of packages with a capacity of 2 litres and 1 litre respectively, the packages will be given the same height while their cross sectional areas will be different.
  • the machine described is constructed for packaging containers with a square bottom section, but other bottom sections also can naturally be used, with the principle remaining unchanged.
  • the storage unit has been made convertible by virtue of the fact that the guide rails 53 can be lifted up and lowered again into one of two positions corresponding to the desired package size.
  • Some of the rails are furthermore fitted in a guide with elongated holes, by which means the guide rails can be moved between an inner and an outer position of the said elongated holes.
  • the mandrel wheel When the size of package is changed, the mandrel wheel must also be converted in such a way that the duplicate mandrel set 5', which has dimensions to fit the new package size, is brought into position right in front of the pusher unit 3.
  • the pre-folder unit 7 at position 11 and the heating device 8 at position III must be changed. This may be done simply by duplicating the equipment for units 7 and 8 and mounting these on retractable or rotatable devices, so that the pre-folder unit and the heating device which fit the container blanks being used can be easily brought into position right in front of the mandrels 5.
  • the conveyor chain 13 must naturally contain duplicate holders and the conveyor chain 13 must in addition be rendered adjustable in such a way that the holder which fits the container blank being used can be brought right underneath the mandrel 5' in position VI.
  • the pre-folder 14, expander 15 and the heating unit 17 must naturally be changed over for the same reason as that which necessitates changing of the corresponding parts on the mandrel wheel 6.
  • Change-over of units 14, 15 and 17 is effected in the simplest manner by duplicating the units and mounting them on a retractable or rotatable arm which allows the appropriate unit to be placed into the operating position manually.
  • the filling unit 16 can also be made exchangeable, even if this does not appear to be absolutely necessary. It is however necessary to alter the stroke of the reciprocating pump or to fit a duplicate pump, since the packages are not intended to be filled with the same quantity of liquid.
  • the packaging machine in accordance with the specification has been found particularly reliable in operation and is in addition considerably cheaper than known machines, which, if they are to be capable of use for different sizes of package, must largely be duplicated with the exception of the actual machine foundation.
  • pneumatic cylinders produce a fast and sure movement and they are in addition easy to operate.
  • the design of a mandrel wheel 6 shown in FIG. 3 comprises a hub 56 which can be freely rotated on the driving shaft 54. On the hub 56, there are fitted a number, in the present case twelve, mandrels which are divided into two mandrel sets denoted 5 and 5'.
  • the mandrel sets 5 and 5' each contain six mandrels which are identical.
  • the mandrels in the two sets are the same length but differ in that e.g.
  • the mandrels in the two sets are naturally suited to packaging containers of different size, and the mandrel wheel 6 is arranged so that either one or the other mandrel set may be brought into the working position, while the mandrel set which is not in the working position is caused to passively rotate with the mandrel wheel 6 during its rotation.
  • a ring 63 is aflixed to the hub 56 of the mandrel wheel 6 by means of bolts 64, which ring exhibits a number of connector seats 67 which are also divided into two sets, one set of connector seats having an angular displacement of 30 in relation to the other set of connector seats, all measured from the centre of rotation of the mandrel wheel.
  • a disc 72 which is firmly secured to the driving shaft and exhibits a number of locating slots 66 as well as connectors 65 fitted into these slots, which connectors have the shape of elongated bodies or pins with rounded or chamfered ends. It is also possible to use balls as connectors, but since the locating slots must have a certain length for reasons of strength, the balls which must have a diameter larger than the legnth of the locating slots will have unnecessarily large dimensions.
  • the locating slots 66 on the disc 72 are placed so that they coincide with either of the said connector seat sets 67.
  • the number of locating slots 66 is thus equal to half the number of connector seats 67 and since in this case the disc 72 is provided with four locating slots, each set of connector seats will contain four sets.
  • the disc 72 and thereby the driving shaft 54 can be connected to the mandrel wheel by connectors 65, which are placed in the locating slots 66, being fitted into one of the sets of connector seats, and by moving the position of the connectors from one to the other of these sets of connector seats 67, the mandrel wheel 6 can thus be given an angular displacement, relative to the shaft 54, of 30.
  • a thrust washer 60 is fitted on the shaft head 62.
  • the thrust washer 60 onto which one end of the spring 57 abuts, is held in position by a nut 58, and the disc 72 which is wedged onto the shaft head 62 is secured to this in the axial direction by the nut 59.
  • the driving shaft 54 further exhibits a cooling duct 79 drilled in the axial direction, which through radial ducts 63 is in communication with annular grooves 81 situated 1n the hub 56 of the mandrel wheel. From the annular grooves 81, cooling ducts radiate outwards through the hub 56, which cooling ducts are in connection with the cooling ducts 55 situated inside the mandrels 5.
  • sealing rings 82 fitted on both sides of the annular grooves 81. Coolant is supplied through the end 68 of the shaft head 62 and is caused to circulate through the mandrels 5 with a view to removing the heat transmitted to the container blanks in conjunction with the sealing operation.
  • the mandrel Wheel 6 When the driving shaft 54 is rotated during the indexing process, the mandrel Wheel 6 is rotated along with the shaft, since the hub 56 of the mandrel wheel is connected to the driving shaft by means of the connections 65. If there should arise some obstacle to the rotation of the mandrel wheel, e.g. a faultily formed container or something similar, the mandrel wheel 6 should be disengaged since the mandrels may otherwise be damaged through being deformed. This disengagement takes place automatically, through the connectors 65 being forced out of seats 67 in the event of the force transmitted between the mandrel wheel and the disc 72 becoming excessive, and being pressed against the pressure plate 73 so that this is displaced from the disc 72 against the spring force exerted by the spring 57.
  • the connectors 65 if the force transmitted is excessive, can therefore leave their seats 67., from which they will be automatically displaced owing to the conical or rounded shape of the end of the connectors.
  • the mandrel wheel hub 56 is disengaged and the mandrel wheel 6 ceases to rotate along with the driving shaft 54. Since in most cases the obstacle causing disengagement remains, it is not desirable that the connectors 65 should slide along the disc 72 and drop into a connector seat 67, only to be forced out again, every time they pass a seat.
  • the machine is equipped with a sensor unit 69 shown in FIG.
  • valve 69 which may be a micro-interruptor or an air valve, which detects the position of the pressure plate 73 by means of a sensor arm, and which, if the pressure plate is moved towards the left as a result of its having become disengaged, actuates an operator 70 e.g. an air valve, which in turn operates a lever 71 that moves away the pressure plate 73 against the spring force and thus definitely disengages the mandrel wheel 6.
  • the valve 69 can naturally also transmit an impulse to a relay which switches off the current to the driving motor and thus stops the machine.
  • FIG. 5 there is a frame 89 attached to the machine framing 88.
  • the frame 89 is furthermore firmly secured to two carrier plates 90, each of which at their ends have resilient units 87 of the type shown in FIG. 5a.
  • the resilient unit 87 consists in. principle of a rubber ring element 92 which is retained between a hole in the carrier plate 90 and the shaft 91 connecting pairs of resilient units 87.
  • the rubber elements 92 are located both by spacer sleeves 96 and locating washers 95, which are in turn held in the intended position with the aid of washers 94.
  • the shafts 911 are joined to both the pneumatic cylinder 29, by means of which the pressure plate is operated, and to the rods 84 which take up the force, which are in addition joined to one another by a yoke 85 that passes round the hub of the mandrel wheel 6, while allowing some clearance between the yoke and the hub, so that rotational movement of the latter should not be prevented.
  • the rods taking up the force are connected to the carrier plates 90 by means of a fixture 86, and the positions of the rods 84 and thereby also that of the yoke 85, in relation to the hub of the mandrel wheel, can be adjusted by means of the nuts 93.
  • the method of operation of the equipment is as follows:
  • an impulse is delivered to the pneumatic cylinder 29 by a programming device, not shown here, which may conveniently consist of a cam disc, causing the cylinder to push the pressure plate 10 down to the top side of the mandrel 5, whereby the heated and pre-folded bottom portion 35 of the container blank 4 is completely folded and compressed between the pressure plate 10 and the mandrel. Since, as has been mentioned previously, the compressive force transmitted by the pressure plate 10 is very large, the reaction from the mandrel 5 will force the pressure plate 10 and the pneumatic cylinder 29 against the direction of compression, i.e. away from the mandrel.
  • the above reaction force would only be transmitted to this, without the pneumatic cylinder being moved out of its position, and the mandrel wheel shaft 54 would have to absorb the whole compressive force. Since, however, the pneumatic cylinder 29 is fixed to the carrier plate 90 connected to the machine base 88 in a resilient manner, the pressure plate 10 and the pneumatic cylinder 29 can move away somewhat through the rubber element 92 being compressed, which also means that the shaft 91 and the rods 84, which take up the force, are displaced somewhat in a direction away from the mandrel 5.
  • mandrels 5 attached to the mandrel wheel 6 are divided into two groups 5 and 5, as has been mentioned before.
  • mandrels 5 have a larger cross sectional area than the mandrel 5', and the mandrels 5 are all so oriented in relation to the mandrel wheel 6 that their central axes, when produced, intersect at points which coincides with the centre of rotation of the mandrel wheel.
  • the mandrels 5 thus project radially from the mandrel wheel 6.
  • the arrangement chosen is such that the side edges of the mandrels 5 and 5', which are the rear edges when seen in the direction of rotation, have the same positions in both sets of mandrels. This means that the feed table near the pusher unit 3 need not be adjusted when the size of package is changed, and that in position VI the side of the mandrel, which is turned towards the container track 12, is always in the same position relative to the near end of the container track, regardless of which mandrel set is being used.
  • the mandrels in the set 5' must be positioned asymmetrically in relation to the centre of rotation of the mandrel wheel, i.e. the central axes of the smaller mandrels 5, when produced, do not all intersect at one and the same point, nor do they pass through the centre of rotation of the mandrel wheel 6.
  • the smaller holders 98 thus cannot be placed exactly between the larger holders, since the mandrels 5 and 5 have different widths, and it is only the edges of mandrels S and 5', which are the rear edges when seen in the direction of movement, that have the same position in position VI.
  • the reason why the feed movement is two divisions is naturally that every other holder 98 belongs to the same holder set and thus takes place in the operation, while every other holder belongs to the holder set which is not used.
  • each holder set must naturally be arranged at an even spacing, and when changing over the packaging machine from one size of package to the other,
  • the holders 98 are formed by angle-section holder elements 97 which are attached to two interacting endless chains running between chain wheels 99.
  • the positions of the holders 98 are adjusted when a change is made from one size of package to the other by the chain wheels 99 being turned, and the chain wheels 99 may in addition be fitted with advantage with a disengagement device of the same kind as the one already described in connection with the specification of the mandrel wheel 6.
  • the puller device shown in FIG. 6 consists, as mentioned before, of a suction cup 37 made from an elastic material, which through a duct 75 is in communication with a valve 76, which connects the duct 75 either with a source of vacuum or the ambient atmosphere, or with a source of compressed air, depending on the position of the control arm 77 of the valve 76.
  • the suction cup 37 is attached to a pusher rod 74 which is connected to, or is the piston rod of, a pneumatic cylinder 38.
  • the pneumatic cylinder 38 is operated by a valve that is not shown here, which is most conveniently operated by a cam disc,
  • the valve 76 is designed so that its position in relation to the container track 12 can be adjusted, and the control arm 77 of the valve 76 is designed to be capable of being actuated by the pusher rod 74 or by a unit 101 connected to the pusher rod.
  • the control arm 77 is not actuated by the unit 101, the duct 75 is connected to a source of vacuum through the valve 76, but when the control arm 77 is actuated by the unit 101, the duct 75 is connected to the ambient atmosphere.
  • the method of operation of the puller device is as follows:
  • the container 33 is drawn off the mandrel 5 and into a holder 98 which is situated directly underneath the mandrel 5.
  • the unit or rod 101 connected to the pusher rod 74 comes into contact with the control 12 arm 77 of the valve 76, the suction cup 37 is placed in communication with the ambient atmosphere or with a source of compressed air through the duct 75, which means that the suction force is lost and the suction cup is released from the container 33.
  • release of the suction cup 37 from the container 33 can be adjusted to coincide with a position where the container 33 is situated on or immediately above the container track 12.
  • the reason why the container 33 is to be disengaged from the suction cup 37 before the edge of the container has reached the container track 12 is that the suction force is considerable and the container may become damaged, and a breakdown ensue, if the container is drawn off against the edge of the container track 12 with the suction cup 37 exerting the full suction force.
  • the near part 102 of the container track 12 slopes, and care is taken that the valve device is adjusted so that the container 33 is released before reaching the sloping near edge 102 of the container track 12, but that the container is not disengaged before it has been brought to a position underneath the level defined by the container track 12 at the end of the sloping part 102.
  • the container 33 When the container 33 has been disengaged from the puller, it is positioned inside a holder 98 situated on the chain conveyor 13, by means of which it is intermittently moved onto position A.
  • the bottom of the container 33 is in contact with the container track somewhere along the sloping part 102, and the container 33 is steered in the vertical direction by the container track 12 until at the end of the sloping part 102 it has reached the correct level, with the bottom of the container resting on the container track 12.
  • a packaging machine for the production of filled and sealed packages from package blanks of thermoplastic coated packaging material provided with fold lines to facilitate folding, said machine comprising an intermittently rotatable mandrel wheel, mandrels mounted outwardly thereabout, means for erecting the package blanks to form a rectangular shape, means for placing the erected blanks onto said mandrels, means for forming the bottoms of the packages, means for sealing the bottoms while on said mandrels to form open packages, conveyor means, adjustable holders provided thereon for the open packages, means for transferring the open packages from said mandrels to said conveyor means, means for prefolding the open ends of the open packages, means for filling the packages, means for closing the packages, means for sealing the packages, said mandrels comprising two sets of an equal number of mandrels, each set having a different cross-sectional area and being arranged alternately about said mandrel wheel, the mandrels of each set being spaced equidistantly from each other
  • each of one set of said mandrels extends outwardly radially from the mandrel wheel and each of said alternating set of mandrels extends outwardly and parallel to but spaced from a radius of the mandrel wheel.
  • a packaging machine as claimed in claim 2 wherein the trailing face of each mandrel of each set of said mandrels takes the same position at each of the series of stations when each of said sets of mandrels is disposed to intermittently rotate between the stations for operations thereat.
  • a packaging machine as claimed in claim 1 wherein the means for sealing the bottoms of the packages while on the mandrels comprises a pressure means for sealing the bottom of the packages and means connecting said pressure means with said mandrel wheel to relieve stresses on said mandrel wheel caused by said pressure means.
  • a packaging machine as claimed in claim 1 wherein said mandrel wheel is provided with two sets of alternately arranged indentations to permit engagement of said detent means with one set of said indentations.
  • a packaging machine as claimed in claim 8 wherein one indentation of one set thereof is spaced equidistant from the adjacent indentations of the other set.
  • said restraining means comprises means for detecting the position of the resiliently mounted means for releasably engaging said detent means with said mandrel wheel and means cooperating with said detecting means for preventing engagement of said mandrel wheel with said drive shaft.
  • a packaging machine as claimed in claim 1 wherein said means for transferring the open packages from said mandrels to said conveyor means comprises reciprocal suction means for engaging the packages to withdraw them from said associated mandrel and deposit the package on said conveyor means, means for operating said suction means when a mandrel is in proper position with respect to said conveyor means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Closing Of Containers (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
US867324A 1968-10-30 1969-10-17 Packaging machine Expired - Lifetime US3619979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE14661/68A SE335090B (ko) 1968-10-30 1968-10-30

Publications (1)

Publication Number Publication Date
US3619979A true US3619979A (en) 1971-11-16

Family

ID=20299458

Family Applications (1)

Application Number Title Priority Date Filing Date
US867324A Expired - Lifetime US3619979A (en) 1968-10-30 1969-10-17 Packaging machine

Country Status (14)

Country Link
US (1) US3619979A (ko)
JP (3) JPS4918754B1 (ko)
BE (1) BE741012A (ko)
BR (1) BR6913776D0 (ko)
CH (1) CH518832A (ko)
DE (1) DE1953727C3 (ko)
DK (1) DK135665B (ko)
ES (4) ES372988A1 (ko)
FI (1) FI47970C (ko)
FR (4) FR2021898A1 (ko)
GB (1) GB1292821A (ko)
NL (1) NL167378C (ko)
NO (2) NO124984B (ko)
SE (1) SE335090B (ko)

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US3762132A (en) * 1972-07-12 1973-10-02 Ex Cell O Corp Apparatus for folding, closing and sealing a container flat end closure
US3785113A (en) * 1971-03-25 1974-01-15 Tetra Pak Int Packaging machine
US3956871A (en) * 1973-10-12 1976-05-18 Cedar Sales Company Container branding apparatus
US3956872A (en) * 1973-10-12 1976-05-18 Cedar Sales Company Carton branding apparatus
US4126981A (en) * 1977-08-31 1978-11-28 Fbm International, Inc. Semi-automatic carton forming, filling, and sealing machine
US4159056A (en) * 1977-04-12 1979-06-26 Ex-Cell-O Corporation Conveyor means for packaging machines
DE3027369A1 (de) * 1979-07-18 1981-02-05 Pneumatic Scale Corp Verfahren und vorrichtung zur formung eines fluessigkeitsbehaelters
EP0025711A1 (en) * 1979-09-17 1981-03-25 Developak Corporation Bag forming apparatus
DE3114190A1 (de) * 1981-04-02 1982-10-28 Ace Pack Co., Inc., Urawa, Saitama Vorrichtung zum automatischen fuellen und verschliessen von kartonbehaeltern
US4448008A (en) * 1981-11-09 1984-05-15 Liquipak International, Inc. Multiple mandrel carton erecting, filling and sealing machine with two-stage loading
US4456118A (en) * 1981-11-18 1984-06-26 Ex-Cell-O Corporation Single to dual indexing carton transfer mechanism
US4479345A (en) * 1982-01-28 1984-10-30 Ex-Cell-O Corporation Corrugated box forming, loading and sealing machine
US4776147A (en) * 1986-12-17 1988-10-11 International Paper Company High capacity continuous package seam and tab folding and tacking apparatus
US4817366A (en) * 1986-12-17 1989-04-04 International Paper Company High capacity package seal, sever, and brick apparatus and method
US4986058A (en) * 1986-04-18 1991-01-22 Ab Tetra Pak Pressure application arrangement on a packing machine
US4999971A (en) * 1989-02-17 1991-03-19 Shikoku Kakoki Co., Ltd. Packaging machine
US5096402A (en) * 1989-10-28 1992-03-17 Tetra Pak Holdings & Finance S.A. Package producing machine with guided transport containers
US5337538A (en) * 1993-08-12 1994-08-16 Tetra Laval Holdings & Finance S.A. Gable-top carton blank for diverse packaging machines and methods of making and using the blank
US5555708A (en) * 1995-04-21 1996-09-17 Elopak Systems A.G. Pressure closing mechanism
WO1997016307A1 (en) * 1995-11-03 1997-05-09 Nimco Corporation Method and apparatus for attaching a fitment to and sterilizing a container
EP0781229A1 (en) * 1994-09-26 1997-07-02 Tetra Laval Holdings & Finance SA Carton transporting apparatus and method
US5718099A (en) * 1992-12-14 1998-02-17 Southpac Trust International, Inc. Bouquet wrap machine
US5966897A (en) * 1994-02-02 1999-10-19 Tetra Laval Holdings & Finance, Sa Control system for a packaging machine
US6000195A (en) * 1998-04-27 1999-12-14 Tetra Laval Holdings & Finance, Sa Packaging machine with capability to convert to different carton cross-sections
US20040079054A1 (en) * 2001-10-15 2004-04-29 International Paper Company Method and apparatus for closing open end of carton blank
US20040235632A1 (en) * 2002-07-25 2004-11-25 Fulvio Boldrini Machine for forming containers in particular containers for food products
DE10358750A1 (de) * 2003-12-12 2005-07-21 Sig Technology Ltd. Dornrad für die Herstellung des Packungsbodens von Mehrschichtverbundpackungen
WO2006117539A2 (en) * 2005-05-02 2006-11-09 Elopak Systems Ag Apparatus and method for handling partially formed containers
RU2558532C2 (ru) * 2005-05-02 2015-08-10 Элопак Системс Аг Устройство и способ манипулирования частично сформированными контейнерами
CN107107516A (zh) * 2015-03-19 2017-08-29 Sig技术股份公司 用于制造包装件的芯轴轮
CN108883847A (zh) * 2016-04-04 2018-11-23 Sig技术股份公司 用于单面闭合用于制造复合包装件的包装套筒的设备
CN110831751A (zh) * 2017-06-30 2020-02-21 Sig技术股份公司 用于制造包装件的包括独立芯轴轮驱动器的设备
CN113086929A (zh) * 2021-03-31 2021-07-09 重庆品正食品有限公司 苏打水全自动生产工艺
CN113370590A (zh) * 2021-06-29 2021-09-10 太仓市岭南纸业包装有限公司 高强度多层瓦楞纸板自动生产系统
CN113508082A (zh) * 2018-12-27 2021-10-15 J·施穆克 具有用于可再填充咖啡胶囊的填充装置的咖啡研磨机

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JPS52137965U (ko) * 1976-04-06 1977-10-19
JPS5352956U (ko) * 1976-09-30 1978-05-06
DE3467880D1 (en) * 1984-05-26 1988-01-14 Shikoku Kakoki Co Ltd Packaging machine
JP2813820B2 (ja) * 1989-09-13 1998-10-22 四国化工機株式会社 容器成形装置
EP0420821A1 (de) * 1989-09-28 1991-04-03 Romatic S.A. Verfahren zur Herstellung einer Vakuum-Packung für rieselfÀ¤hige Produkte, insbesondere Mahlkaffee
DE4209141C2 (de) * 1992-03-20 1994-05-19 Kettner Verpackungsmaschf Vorrichtung zur Herstellung von Verpackungen, insbesondere Kartons, aus flachen Zuschnitten
JP4238376B2 (ja) * 1997-09-02 2009-03-18 四国化工機株式会社 包装機械
FR3126932A1 (fr) 2021-09-14 2023-03-17 Psa Automobiles Sa Systèmes de projection d’images sur le sol

Cited By (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785113A (en) * 1971-03-25 1974-01-15 Tetra Pak Int Packaging machine
US3788033A (en) * 1971-03-25 1974-01-29 Tetra Pak Int Packaging machine
US3789746A (en) * 1971-03-25 1974-02-05 Tetra Pak Int Packaging machine
US3762132A (en) * 1972-07-12 1973-10-02 Ex Cell O Corp Apparatus for folding, closing and sealing a container flat end closure
US3956871A (en) * 1973-10-12 1976-05-18 Cedar Sales Company Container branding apparatus
US3956872A (en) * 1973-10-12 1976-05-18 Cedar Sales Company Carton branding apparatus
US4159056A (en) * 1977-04-12 1979-06-26 Ex-Cell-O Corporation Conveyor means for packaging machines
US4126981A (en) * 1977-08-31 1978-11-28 Fbm International, Inc. Semi-automatic carton forming, filling, and sealing machine
DE3027369A1 (de) * 1979-07-18 1981-02-05 Pneumatic Scale Corp Verfahren und vorrichtung zur formung eines fluessigkeitsbehaelters
EP0025711A1 (en) * 1979-09-17 1981-03-25 Developak Corporation Bag forming apparatus
DE3114190A1 (de) * 1981-04-02 1982-10-28 Ace Pack Co., Inc., Urawa, Saitama Vorrichtung zum automatischen fuellen und verschliessen von kartonbehaeltern
US4448008A (en) * 1981-11-09 1984-05-15 Liquipak International, Inc. Multiple mandrel carton erecting, filling and sealing machine with two-stage loading
US4456118A (en) * 1981-11-18 1984-06-26 Ex-Cell-O Corporation Single to dual indexing carton transfer mechanism
US4479345A (en) * 1982-01-28 1984-10-30 Ex-Cell-O Corporation Corrugated box forming, loading and sealing machine
US4986058A (en) * 1986-04-18 1991-01-22 Ab Tetra Pak Pressure application arrangement on a packing machine
US4776147A (en) * 1986-12-17 1988-10-11 International Paper Company High capacity continuous package seam and tab folding and tacking apparatus
US4817366A (en) * 1986-12-17 1989-04-04 International Paper Company High capacity package seal, sever, and brick apparatus and method
US4881360A (en) * 1986-12-17 1989-11-21 International Paper Company High capacity package seal, sever, and brick apparatus and method
US4999971A (en) * 1989-02-17 1991-03-19 Shikoku Kakoki Co., Ltd. Packaging machine
AU624906B2 (en) * 1989-02-17 1992-06-25 Shikoku Kakoki Co., Ltd. Packaging machine
US5096402A (en) * 1989-10-28 1992-03-17 Tetra Pak Holdings & Finance S.A. Package producing machine with guided transport containers
US6425225B1 (en) 1992-12-14 2002-07-30 Southpac Trust International, Inc. Method of wrapping a bouquet
US6553741B2 (en) 1992-12-14 2003-04-29 Southpac Trust International, Inc. Method of wrapping a bouquet
US5718099A (en) * 1992-12-14 1998-02-17 Southpac Trust International, Inc. Bouquet wrap machine
US6343457B2 (en) 1992-12-14 2002-02-05 Southpac Trust International, Inc. Method of wrapping a bouquet
US5921063A (en) * 1992-12-14 1999-07-13 Southpac Trust International, Inc. Bouquet wrap machine
US5337538A (en) * 1993-08-12 1994-08-16 Tetra Laval Holdings & Finance S.A. Gable-top carton blank for diverse packaging machines and methods of making and using the blank
US5966897A (en) * 1994-02-02 1999-10-19 Tetra Laval Holdings & Finance, Sa Control system for a packaging machine
EP0781229A4 (en) * 1994-09-26 1998-06-03 Tetra Laval Holdings & Finance DEVICE AND METHOD FOR CONVEYING CARTONES
EP0781229A1 (en) * 1994-09-26 1997-07-02 Tetra Laval Holdings & Finance SA Carton transporting apparatus and method
US5555708A (en) * 1995-04-21 1996-09-17 Elopak Systems A.G. Pressure closing mechanism
WO1997016307A1 (en) * 1995-11-03 1997-05-09 Nimco Corporation Method and apparatus for attaching a fitment to and sterilizing a container
US6066081A (en) * 1995-11-03 2000-05-23 Nimco Corporation Method and apparatus for attaching a fitment to and sterilizing a container
US6000195A (en) * 1998-04-27 1999-12-14 Tetra Laval Holdings & Finance, Sa Packaging machine with capability to convert to different carton cross-sections
US20040079054A1 (en) * 2001-10-15 2004-04-29 International Paper Company Method and apparatus for closing open end of carton blank
US6837029B2 (en) * 2001-10-15 2005-01-04 George A. Morden Method and apparatus for closing open end of carton blank
US7090630B2 (en) * 2002-07-25 2006-08-15 Azionaria Costruzioni Macchine Automastiche A.C.M.A. S.P.A. Machine for forming containers in particular containers for food products
US20040235632A1 (en) * 2002-07-25 2004-11-25 Fulvio Boldrini Machine for forming containers in particular containers for food products
DE10358750B4 (de) * 2003-12-12 2005-10-27 Sig Technology Ltd. Dornrad für die Herstellung des Packungsbodens von Mehrschichtverbundpackungen
DE10358750A1 (de) * 2003-12-12 2005-07-21 Sig Technology Ltd. Dornrad für die Herstellung des Packungsbodens von Mehrschichtverbundpackungen
WO2006117539A2 (en) * 2005-05-02 2006-11-09 Elopak Systems Ag Apparatus and method for handling partially formed containers
WO2006117539A3 (en) * 2005-05-02 2007-05-03 Elopak Systems Apparatus and method for handling partially formed containers
RU2558532C2 (ru) * 2005-05-02 2015-08-10 Элопак Системс Аг Устройство и способ манипулирования частично сформированными контейнерами
US10464264B2 (en) 2015-03-19 2019-11-05 Sig Technology Ag Mandrel wheel for producing packages
CN107107516A (zh) * 2015-03-19 2017-08-29 Sig技术股份公司 用于制造包装件的芯轴轮
CN107107516B (zh) * 2015-03-19 2020-06-30 Sig技术股份公司 用于制造包装件的芯轴轮
CN108883847A (zh) * 2016-04-04 2018-11-23 Sig技术股份公司 用于单面闭合用于制造复合包装件的包装套筒的设备
US20190112090A1 (en) * 2016-04-04 2019-04-18 Sig Technology Ag Device for the Single-Sided Closure of Packaging Sleeves for the Production of Composite Packages
CN108883847B (zh) * 2016-04-04 2020-11-10 Sig技术股份公司 用于单面闭合用于制造复合包装件的包装套筒的设备
US10926896B2 (en) * 2016-04-04 2021-02-23 Sig Technology Ag Device for the single-sided closure of packaging sleeves for the production of composite packages
CN110831751A (zh) * 2017-06-30 2020-02-21 Sig技术股份公司 用于制造包装件的包括独立芯轴轮驱动器的设备
US11376808B2 (en) * 2017-06-30 2022-07-05 Sig Technology Ag Device for producing packaging comprising an independent mandrel wheel drive
CN113508082A (zh) * 2018-12-27 2021-10-15 J·施穆克 具有用于可再填充咖啡胶囊的填充装置的咖啡研磨机
CN113086929A (zh) * 2021-03-31 2021-07-09 重庆品正食品有限公司 苏打水全自动生产工艺
CN113370590A (zh) * 2021-06-29 2021-09-10 太仓市岭南纸业包装有限公司 高强度多层瓦楞纸板自动生产系统
CN113370590B (zh) * 2021-06-29 2024-06-11 太仓市岭南纸业包装有限公司 高强度多层瓦楞纸板自动生产系统

Also Published As

Publication number Publication date
GB1292821A (en) 1972-10-11
FI47970C (fi) 1974-05-10
NO130052B (ko) 1974-07-01
FR2109637A5 (ko) 1972-05-26
NL167378C (nl) 1981-12-16
CH518832A (de) 1972-02-15
ES372988A1 (es) 1971-11-16
DK135665C (ko) 1977-11-14
BE741012A (ko) 1970-04-01
NO124984B (ko) 1972-07-03
JPS4918755B1 (ko) 1974-05-13
FR2109638A5 (ko) 1972-05-26
DE1953727C3 (de) 1973-01-25
ES392874A1 (es) 1973-08-16
DK135665B (da) 1977-06-06
DE1953727A1 (de) 1970-05-14
ES392875A1 (es) 1973-10-01
FR2021898A1 (ko) 1970-07-24
ES196475U (es) 1975-03-16
SE335090B (ko) 1971-05-10
NL6916315A (ko) 1970-05-04
ES196475Y (es) 1975-08-01
FR2109639A5 (ko) 1972-05-26
DE1953727B2 (de) 1972-06-29
JPS4918754B1 (ko) 1974-05-13
NL167378B (nl) 1981-07-16
JPS4945359B1 (ko) 1974-12-03
FI47970B (ko) 1974-01-31
BR6913776D0 (pt) 1973-05-03

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