SE502370C2

SE502370C2 - Method and apparatus for feeding packing materials raised in a erection machine

Info

Publication number: SE502370C2
Application number: SE9300124A
Authority: SE
Inventors: Kay Wallin
Original assignee: Sprinter System Ab
Priority date: 1993-01-18
Filing date: 1993-01-18
Publication date: 1995-10-09
Also published as: WO1994015838A1; SE9300124L; EP0679135A1; SE9300124D0; JPH08505346A; AU5894794A; EP0679135B1; DE69402680D1

Abstract

The invention relates to a method and an arrangement for feeding packaging blanks (1) erected in an erecting machine from an ejection position (2) under a form chamber (3) in the machine, where an erecting plunger (4) inside the erected blank relinquishes it for transfer to an underlying delivery conveyor (5) for further horizontal conveyance to a filling and sealing station. Substantially simultaneously as it is relinquished, the erected blank (1) is captured by a vacuum conveyor (8), known per se, which includes at least one vertically moving belt (9). One side wall (6), and possibly a lid (7) attached in an upstanding attitude to the wall of the erected blank are urged against the belt for controlled movement downwards until the bottom (11) of the erected blank comes into contact with the upper surface (12) of the delivery conveyor (5) substantially simultaneously as the erected blank is automatically released from the vacuum conveyor (8) for further horizontal conveyance by the delivery conveyor to a filling and sealing station.

Description

502 370 Syftet med föreliggande uppfinning är att undanröja de nackdelar som finns vid de tidigare kända anordningarna av ovannämnt slag och att åstadkomma ett förfarande och en anordning för transport av de färdigresta förpackningsäm- nena vid en resningsmaskin från formrummet och ner till utmatningsbanan för vidaretransport av de resta ämnena till en fyllnings- och förslutningsstation, vilket kan ske utan onödiga driftstopp och även vid mycket stora maskinhastig- heter samtidigt som anordningen för genomförande av för- farandet är både enkel och tillförlitlig till sin konst- ruktion. De för uppfinningen utmärkande särdragen finns angivna i efterföljande patentkrav. The object of the present invention is to obviate the disadvantages of the previously known devices of the above-mentioned type and to provide a method and a device for transporting the most finished packaging blanks at a rising machine from the mold space down to the discharge path for further transport of the erect the blanks to a filling and sealing station, which can be done without unnecessary downtime and even at very high machine speeds, while the device for carrying out the procedure is both simple and reliable in its construction. The features characteristic of the invention are set out in the appended claims.

Tack vare föreliggande uppfinning har man nu åstadkommit ett förfarande och en anordning för matning av de resta ämnena vid en resningsmaskin, där de resta förpacknings- ämnena vid sin bakre sidovägg kan ha ett vid denna ledat, upprättstående lock. Genom matningsanordningen enligt uppfinningen åstadkommes nu en kontrollerad matning av de resta förpackningsämnena, varvid resningsmaskinen kan köras i mycket höga resningshastigheter överstigande 100 resta ämnen per minut utan att några driftstörningar inträffar.Thanks to the present invention, a method and an apparatus have now been provided for feeding the raised blanks at a rising machine, where the raised packaging blanks at their rear side wall can have an upright, upright hinged lid thereon. The feeding device according to the invention now provides a controlled feeding of the raised packaging blanks, whereby the rising machine can be run at very high rising speeds exceeding 100 raised blanks per minute without any operational disturbances occurring.

Genom enkelhet i konstruktionen, där få rörliga delar behövs för själva matningen, kan man även nämna den för- delen, att nedmatningen av de resta ämnena kan ske med den hastighet som erfordras för att passa med delningen på de medbringare på utmatningsbanan som är avsedda att mata de resta förpackningsämnena vidare i sidled från resnings- maskinen för vidare hantering, såsom fyllning och förslut- ning. Genom förfarandet och anordningen enligt uppfinningen erhålles mycket stor flexibilitet för formatomställningar förutom säkerhet i funktionen.Due to the simplicity of the construction, where few moving parts are needed for the actual feeding, one can also mention the advantage that the lowering of the raised blanks can take place at the speed required to fit the division of the carriers on the discharge path which are intended to feed the remaining packaging blanks laterally from the rising machine for further handling, such as filling and sealing. Through the method and the device according to the invention, very great flexibility is obtained for format changes in addition to safety in the function.

Uppfinningen beskrives närmare nedan med hjälp av ett föredraget utföringsexempel under hänvisning till bifogade 502 370 ritning, vilken i en perspektivvy enligt fig. l och en partiell sidovy enligt fig. 2 schematiskt visar en anord- ning för genomförande av förfarandet enligt uppfinningen.The invention is described in more detail below with the aid of a preferred exemplary embodiment with reference to the accompanying drawing, which in a perspective view according to Fig. 1 and a partial side view according to Fig. 2 schematically shows a device for carrying out the method according to the invention.

Såsom framgår av ritningen, är syftet med anordningen enligt ett föredraget utföringsexempel att mata färdigresta förpackningsämnen 1 från sitt utstötningsläge 2 under ett i en resningsmaskin befintligt formrum 3. I detta läge be- finner sig en resningsplunge 4 inuti det resta ämnet 1 och då detta utstötts från resningsplungen 4, överförs det till en underliggande utmatningsbana 5 för horisontell vidare- transport av det resta ämnet 1 till en på ritningen icke visad fyllnings- och förslutningsstation. Det resta ämnet l har ett i det visade utföringsexemplet vid sin bakre sido- vägg 6 vidhängande, ledat lock 7, som under det resta ämnets 1 överföring nedåt till utmatningsbanan 5 befinner sig i ett upprättstående vertikalläge med sitt utbrednings- plan sammanfallande med den bakre sidoväggen 6. Överföringen av det resta ämnet 1 från formrummet 3 till utmatningsbanan 5 sker med hjälp av en i vertikalled orien- terad vakuumtransportör 8, vilken innefattar minst en i vertikal riktning rörlig rem 9, mot vilken det resta ämnets 1 bakre sidovägg 6 med sitt upprättstående lock 7 är an- pressbart medelst ett vakuum från en vakuumtransportören innefattande vakuumlåda 10. Remmen 9, som uppvisar stor friktion, är avsedd att på ett kontrollerat sätt mata det resta ämnet 1 i riktning nedåt från formrummet 3 tills det resta ämnets 1 botten ll kommer i kontakt med utmatnings- banans 5 ovansida 12, där det resta ämnet 1 medelst ett kilorgan 20 på vardera sidan av remmen 9 automatiskt fri- görs från vakuumet i vakuumtransportören 8. Här griper efter varandra, på utmatningsbanan 5 anordnade medbringare 13 tag mot någon av det resta ämnets l sidoväggar 14 och matar det i horisontell riktning samtidigt som det mot 502 370 vakuumtransportören 8 anliggande locket 7 och den bakre sidoväggen 6 automatiskt lösgörs från vakuumtransportören 8. För att undvika att de resta ämnena 1 studsar eller på annat sätt uppträder oroligt vid kontakten mot utmatnings- banan 5 kan denna ha en spalt 21 med hål 22, som suger fast de resta ämnena 1 mot utmatningsbanans 5 ovansida 12.As can be seen from the drawing, the object of the device according to a preferred exemplary embodiment is to feed finished residual packaging blanks 1 from their ejection position 2 under a mold space 3 present in a rising machine 3. In this position a rising plunger 4 is inside the raised blank 1 and when this is ejected from the rising plunger 4, it is transferred to an underlying discharge path 5 for horizontal transport of the raised blank 1 to a filling and sealing station not shown in the drawing. The raised blank 1 has an articulated lid 7 attached to its rear side wall 6 in the exemplary embodiment shown, which during the transfer of the raised blank 1 downwards to the discharge path 5 is in an upright vertical position with its plane of extension coinciding with the rear side wall. The transfer of the raised blank 1 from the mold space 3 to the discharge path 5 takes place by means of a vertically oriented vacuum conveyor 8, which comprises at least one belt 9 movable in the vertical direction, against which the rear side wall 6 of the raised blank 1 with its upright lid 7 is compressible by means of a vacuum from a vacuum conveyor comprising vacuum box 10. The belt 9, which exhibits high friction, is intended to feed the raised blank 1 in a controlled manner in the downward direction from the mold space 3 until the bottom 11 of the raised blank 1 comes in contact with the upper side 12 of the discharge path 5, where the raised blank 1 is automatically released from v by means of a wedge member 20 on each side of the belt 9. the vacuum in the vacuum conveyor 8. Here, carriers 13 arranged on the discharge path 5 successively grip against one of the side walls 14 of the raised blank 1 and feed it in the horizontal direction at the same time as the cover 7 and the rear side wall 6 automatically abut against the vacuum conveyor 8 from the vacuum conveyor 8. In order to prevent the raised blanks 1 from bouncing or otherwise appearing uneasily at the contact with the discharge path 5, this can have a gap 21 with holes 22, which sucks the raised blanks 1 against the upper side 12 of the discharge path 5.

Vakuumtransportören 8 är placerad och orienterad i en vertikal sträckning med sitt övre parti 15 utgående från formrummets 3 undre del och med sitt undre parti 16 grän- sande till ovansidan 12 av utmatningsbanan 5. Enligt ett föredraget utföringsexempel innefattar vakuumtransportören 8 en vakuumlåda 10, över och längs vilken sträcker sig minst en kontinuerligt förlöpande obruten kuggrem 9, vilken uppvisar ett flertal efter varandra och på ett förutbestämt avstånd från varandra anordnade hålformationer 17, vilka via en på ritningen icke visad slits i vakuumlådan 10 är vakuumsatta i och för fasthållning av det resta ämnet 1.The vacuum conveyor 8 is placed and oriented in a vertical stretch with its upper part 15 starting from the lower part of the mold space 3 and with its lower part 16 adjacent to the upper side 12 of the discharge path 5. According to a preferred embodiment, the vacuum conveyor 8 comprises a vacuum box 10, over and along which extends at least one continuously extending continuous toothed belt 9, which has a plurality of successive and arranged hole formations 17 arranged one after the other, which are vacuum-set via a slot (not shown in the drawing) in the vacuum box 10 for holding the raised blank 1.

Remmen 9 kan även utgöras av en rundrem, som löper i verti- kala glidspår i vakuumlådan 8, och vid användning av flera remmar 9 kan vakuumhål och/eller slitsar vara anordnade i vakuumlådan 10 mellan remmarna 9. Både kuggremmen 9 och andra typer av remmar löper över brytrullar 18 och 19 placerade utanför vakuumlådan 10 vid vakuumtransportörens 8 övre och undre parti 15 respektive 16.The belt 9 can also consist of a round belt, which runs in vertical sliding grooves in the vacuum box 8, and when using several belts 9, vacuum holes and / or slots can be arranged in the vacuum box 10 between the belts 9. Both the toothed belt 9 and other types of belts runs over breaker rollers 18 and 19 located outside the vacuum box 10 at the upper and lower portions 15 and 16 of the vacuum conveyor 8, respectively.

Förfarandet enligt uppfinningen för matning av förpack- ningsämnena l från formrummet 3 i resningsmaskinen går till på följande sätt. Så snart den resningsplunge 4 som rest förpackningsämnet i formrummet 3 lämnat det resta förpack- ningsämnet 1, griper vakuumremmen 9 på vakuumtransportören 8 tag i det resta förpackningsämnets 1 bakre sidovägg 6 och matar detta nedåt, så att även det upprättstående, vid sidoväggen 6 vidhängande locket 7 kommer till anliggning mot remmen 9. Härvid matas det resta förpackningsämnet 1 på 502 370 ett kontrollerat sätt i riktning nedåt ända tills dess botten 11 kommer i kontakt med utmatningsbanans ovansida 12, där det resta förpackningsämnet l automatiskt lösgörs från vakuumtransportören 8. Denna automatiska lösgöring av det resta ämnet l från vakuumtransportören 8 möjliggörs antingen genom att den det resta ämnet 1 fasthållande vakuumkraften är mindre än den sidoförskjutningskraft utmatningsbanan 5 utövar på det resta ämnet 1 eller med hjälp av de bägge kilorganen 20, som är anordnade på var- dera sidan av remmen 9 i vakuumtransportörens 8 undre parti 16. Efter lösgöringen från vakuumtransportören 8 matar med- bringarna 13 på utmatningsbanan 5 i kombination med fast- sugningen av ämnenas 1 botten 11 mot utmatningsbanans 5 ovansida 12 eller endast med hjälp av fastsugningen de resta förpackningsämnena 1 vidare till den på ritningen icke visade fyllnings- och förslutningsstationen.The method according to the invention for feeding the packaging blanks 1 from the mold space 3 in the rising machine is carried out in the following manner. As soon as the rising plunger 4 which has left the packaging blank in the mold space 3 has left the raised packaging blank 1, the vacuum belt 9 on the vacuum conveyor 8 grips the rear side wall 6 of the raised packaging blank 1 and feeds it downwards, so that also the upright lid attached to the side wall 6 7 comes into abutment against the belt 9. In this case, the raised packaging blank 1 is fed on 502 370 in a controlled manner in the downward direction until its bottom 11 comes into contact with the upper side 12 of the discharge path, where the raised packaging blank 1 is automatically detached from the vacuum conveyor 8. This automatic release of the residual substance 1 from the vacuum conveyor 8 is made possible either by the vacuum force holding the residual substance 1 being less than the lateral displacement force exerted by the discharge path 5 on the residual substance 1 or by means of the two wedge means 20, which are arranged on each side of the belt 9 in the lower part 16 of the vacuum conveyor 8. After the detachment from the vacuum conveyor The importer 8 feeds the carriers 13 on the discharge path 5 in combination with the suction of the bottom 11 of the blanks 1 towards the top side 12 of the discharge path 5 or only by means of the suction the remaining packaging blanks 1 to the filling and sealing station not shown in the drawing.

Claims

502,370 Patent claims

Method for feeding packaging substances raised in a rising machine from an ejection position (2) under a mold space (3) present in the rising machine, in which a rising plunger (4) inside the respective rising blank (1) leaves the same for transfer to an underlying discharge path (5) for horizontal onward transport of the raised blanks to a filling and sealing station, and each raised blanks (1) may each have a hinged lid (7) attached to their rear side wall (6), which during the transfer of the substances downwards to the discharge path (5) is in an upright vertical position with its distribution plane coinciding with the rear side wall (6), characterized in that in connection with the moment of ejection the remaining substances (1) are caught by a vacuum conveyor (8), comprising at least one belt (9) movable in the vertical direction, against which the raised blanks (1) with their outside of the rear side wall (6) and the lid (7) possibly standing upright from this ) is pressed by means of a vacuum from a vacuum conveyor (8) comprising vacuum box (10) at the same time as the belt (9) feeds the raised substances (1) in a downward direction until their bottom (11) comes into contact with the upper side of the discharge path (5). (12), wherein each residual blank (1) in connection with the contact with the upper side (5) of the discharge path (5) is exposed from its abutment against the vacuum conveyor (8) and is fed laterally in the horizontal direction on the discharge path (5) to the filling and the sealing station.

Method according to claim 1, characterized in that carriers (13) arranged along the discharge path (5) grip one of the side walls (14) of the raised blanks (1) to feed the raised blanks (1) in horizontal direction. 502 370

Method according to one of the preceding claims, characterized in that at the moment of contact of the raised blanks (1) with the discharge path (5), their bottom (11) is subjected to a suction force in the direction of the discharge path (5) in order to avoid them rising the substances (1) bounce or behave anxiously.

Method according to Claim 1 or 2, characterized in that the vacuum suction in the conveyor (8) takes place through a perforated vacuum box (10), over which the belt (9) runs in vertical sliding grooves.

Method according to claim 1, characterized in that the vacuum suction is provided by hole formations (17) taken up successively in at least one toothed belt (9) and which toothed belt (9) runs over an upper (18) and a lower (19) breaking roller and with the hole formations (17) extending over a longitudinal slot extending in the vertical direction in the vacuum box (10).

Device for feeding packaging substances raised in a rising machine from an ejection position (2) under a mold space (3) present in the rising machine, in which a rising plunger (4) inside the respective rising blank (1) leaves the same for transfer to an underlying discharge path (5) for horizontal onward transport of the raised blanks to a filling and sealing station, and each raised blanks (1) may each have a hinged lid (7) attached to their rear side wall (6), which during the transfer of the substances downwards to the discharge path (5) is in an upright vertical position with its plane of propagation coinciding with the rear side wall (6), characterized in that a vacuum conveyor (8) is placed and oriented in a vertical stretching with its upper part (15) starting from the lower part of the mold space (3) and with its lower part (16) adjoining the upper side (12) of the discharge path (5), which is constituted by a horizontal conveyor for further transport port of the raised blanks (1) from the vacuum conveyor (8), thereby providing a controlled feed of raised blanks (1) ejected from the mold space (3) in a direction from the mold space (3) and down to the discharge path (5). ) and on to a filling and sealing station.

Device according to claim 6, characterized in that the vacuum conveyor (8) comprises a vacuum box (10), over and along which extends at least one continuously extending continuous toothed belt (9), which has a plurality in succession and at a predetermined distance spaced hole formations (17), which are vacuumed via a slot in the vacuum box (10) to hold the remaining packaging blanks (1).

Device according to claim 6, characterized in that the discharge path (5) comprises a gap (21) with holes (22), arranged to suck the raised blank (1) against the upper side (12) of the discharge path (5) and in if any, along the discharge path (5) from its upper side projecting one after the other, carriers (13) arranged at predetermined distances.

Device according to claim 6, characterized in that the lower portion (16) of the vacuum conveyor (8) has at least one wedge member (20) for releasing the vacuum force exerted on the fed-up, raised blanks (1), before these are further fed laterally on the discharge path (5).