DK152544B

DK152544B - Chain conveyor

Info

Publication number: DK152544B
Application number: DK304985A
Authority: DK
Inventors: Peter Iversen
Original assignee: Univeyor As
Priority date: 1985-07-04
Filing date: 1985-07-04
Publication date: 1988-03-14
Also published as: DK304985A; DK304985D0; DK152544C

Description

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Den foreliggende opfindelse angår en kædetransportør af den i indledningen til krav 1 angivne art.The present invention relates to a chain conveyor of the type specified in the preamble of claim 1.

Fra beskrivelsen til britisk patent nr. 1 525 975 kendes en akkumuleringstransportør med en dobbelt rullebane med frit drejelige transportruller, hvorimellem er anordnet en endeløs kædetransportør med flade kædeled. Kædetransportøren er anbragt i et normalt lavere niveau end rullebanen, idet der ved undersiden af kædeleddene er anbragt styreskinner, der er indrettet til ved hjælp af pneumatiske løfteorganer at presses imod undersiden af kædetransportøren for transportforbindelse af denne med transportemner understøttet på rullebanen. De pneumatiske løfteorganer styres af påløbskontakter langs kædetransportøren, dvs. at der er tale om en akkumuleringstransportør for transportemner, der er beregnet til at fremføres i en helt tæt række, hvor de enkelte transportemner berører hinanden i rækken.From the description of British Patent No. 1,525,975 an accumulation conveyor with a double roller conveyor with freely rotatable conveyor rollers is known, between which an endless chain conveyor with flat chain links is arranged. The chain conveyor is arranged at a normally lower level than the roller conveyor, guide rails being arranged at the underside of the chain links, which are arranged to be pressed by means of pneumatic lifting means against the underside of the chain conveyor for transport connection thereof with conveyor supports supported on the conveyor belt. The pneumatic lifting means are controlled by inlet contacts along the chain conveyor, i.e. that it is an accumulation conveyor for transport items that are intended to be transported in a very close row, where the individual transport items touch each other in the row.

Opfindelsen har til formål at angive en kædetransportør af den angivne art, og ved hvilken der ved hjælp af enkle foranstaltninger er tilvejebragt væsentlige brugsmæssige fordele, og som tilmed er meget nem at vedligeholde.The object of the invention is to provide a chain conveyor of the type indicated, in which significant practical advantages are provided by means of simple measures, and which are also very easy to maintain.

Kædetransportøren ifølge opfindelsen er ejendommelig ved, at transportkæderne udgøres af rullekæder, der forløber gennem en i hovedsagen vandret kassedrager med en central, langsgående slidse, hvorigennem rullekæden kan anpresses mod undersiden af transportemnet, at nævnte anpresningsorga-ner omfatter en ved undersiden af rullekæden i kassedragerens hulhed anbragt langstrakt skinne, der ved hjælp af nævnte pneumatisk aktiverbare organer i form af et langstrakt oppusteligt slangeemne anbragt i kassedrageren under en bæreplade for skinnen er indrettet til at udvirke nævnte anpresning af rullekæden mod undersiden af transportemnetThe chain conveyor according to the invention is characterized in that the conveyor chains are constituted by roller chains extending through a substantially horizontal box girder with a central, longitudinal slot, through which the roller chain can be pressed against the underside of the conveyor, said pressing means comprising a hollow arranged elongate rail, which by means of said pneumatically actuatable means in the form of an elongate inflatable hose blank arranged in the box carrier under a support plate for the rail is arranged to effect said pressing of the roller chain against the underside of the transport blank

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2 for friløftning af dette fra oversiden af kassedrageren og for medbringning af transport emnet til næste section af transportbanen. Herved opnås meget væsentlige brugsmæssige fordele ved kædetransportøren, der især er velegnet som "plukkebane" for lagercontainere, som understøttet på hver sin sektion af transportbanen kan være placeret med indbyrdes afstand, således at enkelte lagercontainere uden problemer kan udtages sideværts fra kædetransportøren ved hjælp af en gaffeltruck. Netop ved, at hver af transportbanens sektioner er længdemæssigt afpasset efter længden af transportemnerne opnås endvidere mulighed for at arbejde med en fælles rullekæde, der kan drives af en drivstation med begrænset trækkraft, der i princippet kun behøver at være dimensioneret for fremtrækning af en lagercontainer af gangen, når kædetransportøren - som angivet - omfatter styreorganer, der er indrettet til koordineret styring af anpres-ningsorganerne ved tilstødende sektioner af transportbanen. Yderligere er kædetransportøren ifølge opfindelsen yderst let at vedligeholde, idet de enkelte sektioners anpresnings-organer kan udskiftes, uden at det er nødvendigt at indgribe i det fælles transportsystem i form af den fælles rullekæde ved transportørens respektive sider.2 for free lifting of this from the top of the box carrier and for bringing the transport item to the next section of the transport path. This obtains very significant practical advantages of the chain conveyor, which is particularly suitable as a "picking path" for storage containers, which supported on separate sections of the transport path can be located at a distance from each other, so that individual storage containers can be removed laterally from the chain conveyor by means of a forklift. Precisely by the fact that each of the sections of the conveyor track is longitudinally adapted to the length of the conveyors, it is also possible to work with a common roller chain which can be driven by a drive with limited traction, which in principle only needs to be dimensioned to draw a storage container. at a time when the chain conveyor - as indicated - comprises control means arranged for coordinated control of the pressing means at adjacent sections of the conveyor track. Furthermore, the chain conveyor according to the invention is extremely easy to maintain, as the pressing means of the individual sections can be replaced without it being necessary to intervene in the common conveyor system in the form of the common roller chain at the respective sides of the conveyor.

Ved kendte transportsystemer af denne art vil uens vægtmæssig læsning af eksempelvis lagercontainere let kunne medføre ukontrolleret drejning af transportemnet. Ved kædetransportøren ifølge opfindelsen optræder der derimod ikke skævt træk, dvs. at det er uden betydning om lagercontainerne er uensartet læsset. Kædetransportøren ifølge opfindelsen er meget let at sammenbygge med en tværstillet rullebane, idet de fælles rullekæder ved transportørens respektive sider ved såkaldte vinkelovergange blot kan fortsætte ind mellem rullerne af rullebanen.With known transport systems of this type, uneven weight loading of, for example, storage containers can easily lead to uncontrolled rotation of the transport item. In the case of the chain conveyor according to the invention, on the other hand, no skewed pull occurs, i.e. that it does not matter whether the storage containers are unevenly loaded. The chain conveyor according to the invention is very easy to assemble with a transverse roller conveyor, as the common roller chains at the respective sides of the conveyor at so-called angular transitions can simply continue in between the rollers of the roller conveyor.

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33

Opfindelsen forklares i det følgende nærmere i forbindelse med tegningen, på hvilken:-The invention is explained in more detail below in connection with the drawing, in which:

Fig. 1 er et tværsnitsbillede af en udførelses form for en kædetransportør ifølge opfindelsen, fig. 2 et sidebillede med længdesnit af den i fig. 1 viste kædetransportør, fig. 3 et partielt tværsnitsbillede af kædetransportøren ifølge opfindelsen, fig. 4 et perspektivisk billede af en endedel af en kassedrager til kædetransportøren ifølge opfindelsen, fig. 5 et perspektivisk billede af en endedel af en bæreplade med styreskinne til kædetransportøren ifølge opfindelsen, medens fig. 6 viser en endedel af et slangeformet løfteorgan til kædetransportøren ifølge opfindelsen.FIG. 1 is a cross-sectional view of an embodiment of a chain conveyor according to the invention, fig. 2 is a side view with longitudinal section of the device shown in fig. 1, fig. Fig. 3 is a partial cross-sectional view of the chain conveyor according to the invention; Fig. 4 is a perspective view of an end part of a box carrier for the chain conveyor according to the invention; Fig. 5 is a perspective view of an end part of a support plate with guide rail for the chain conveyor according to the invention, while fig. 6 shows an end part of a hose-shaped lifting means for the chain conveyor according to the invention.

Den i fig. 1-3 viste kædetransportør er opdelt i sektioner med en længde svarende til længden af de aktuelle transportemner såsom pallecontainere 2, idet transportbanen består af vandrette kassedragere 4 med en øvre, langsgående slidse 6, hvorigennem et øvre løb 8 af en kraftig rullekæde ved hjælp af en aktiveringsskinne 10 og en oppustelig slange 12 kan anpresses imod undersiden af transportemnet (venstre side af fig. 1) svarende til kædetransportørens aktive driftssituation. I højre side af fig. 1 er slangen 12 tømt for luft, således at det øvre løb 8 af rullekæden forløber i hulheden af kassedrageren 4, medens transportemnet er understøttet på oversiden af kassedrageren 4. I fig. 3 erThe device shown in FIG. 1-3 are divided into sections with a length corresponding to the length of the actual transport blanks such as pallet containers 2, the conveyor track consisting of horizontal box girders 4 with an upper, longitudinal slot 6, through which an upper barrel 8 of a strong roller chain by means of an actuating rail 10 and an inflatable hose 12 can be pressed against the underside of the conveyor (left side of Fig. 1) corresponding to the active operating situation of the chain conveyor. On the right side of fig. 1, the hose 12 is emptied of air so that the upper barrel 8 of the roller chain extends into the cavity of the box girder 4, while the transport blank is supported on the upper side of the box girder 4. In fig. 3 er

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4 en sektion af kædetransportøren vist under aktivering, dvs. under oppustning af slangen 12 via en trykluftledning 14. Aktiveringsskinnen 10 er fastgjort midt på en bæreplade 16 med opstående sideflanger 18, der er beregnet til anslag indvendigt imod kassedragerens øvre sidekanter, dvs. at sideflangerne 18 af bærepladen 16 udgør stopanslag for aktivering s skinnen 10 i kædetransportørens aktive driftssituation.4 shows a section of the chain conveyor during activation, i.e. during inflation of the hose 12 via a compressed air line 14. The actuating rail 10 is fixed in the middle of a support plate 16 with upright side flanges 18, which are intended for abutment internally against the upper side edges of the box carrier, i.e. that the side flanges 18 of the support plate 16 constitute stop stops for activating the rail 10 in the active operating situation of the chain conveyor.

Kædetransportøren kan omfatte et stort antal sektioner, der som nævnt er afpasset længdemæssigt til de aktuelle transportemner, idet den betjenes af endeløse rullekæder, hvis øvre løb 8 er ført i kassedragerne 4 langs oversiden af aktiveringsskinnerne 10. En fælles drivstation, der samvirker med rullekædernes nedre løb, behøver kun at have begrænset motoreffekt, fordi kædetransportøren i princippet er indrettet til kun at transportere et transportemne af gangen styret af passende følere ved udløbsenden af hver sektion af transportbanen.The chain conveyor can comprise a large number of sections which, as mentioned, are adapted longitudinally to the actual transport blanks, being operated by endless roller chains, the upper barrel 8 of which is guided in the box girders 4 along the upper side of the activating rails 10. A common drive station cooperating with the lower roller chains run, need only have limited engine power because the chain conveyor is in principle arranged to transport only one conveyor at a time controlled by suitable sensors at the outlet end of each section of the conveyor track.

Kædetransportøren har følgende funktion, idet den i den beskrevne sammenhæng udgør en akkumuleringsbane med et antal afhentningspositioner for sideværts afløftning af pallecontainere (fig. 2) ved hjælp af en gaffelløftevogn. Ved opstart er kædetransportøren tom, hvorfor samtlige sektioner kan være i drift, idet det skal huskes, at kædedriv-stationen har minimal motoreffekt.The chain conveyor has the following function, as in the context described it constitutes an accumulation path with a number of pick-up positions for lateral lifting of pallet containers (Fig. 2) by means of a fork lift truck. At start-up, the chain conveyor is empty, so all sections can be in operation, remembering that the chain drive station has minimal engine power.

En pallecontainer indføres på kædetransportørens første sektion, der samtidigt spærres for yderligere indføring af transportemner f.eks. ved hjælp af en mekanisk spærrebom, der kan svinges op foran første sektion, dvs. ved udløbsenden af en særlig indfødningstransportør. Den første pallecontainer vil uhindret - for så vidt systemet ikke omfatter 5A pallet container is introduced on the first section of the chain conveyor, which is simultaneously blocked for further introduction of transport items, e.g. by means of a mechanical barrier that can be swung up in front of the first section, ie. at the outlet end of a special feed conveyor. The first pallet container will unobstructed - insofar as the system does not include 5

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et særligt adresseringssystem for de enkelte pallecontainer - blive transporteret frem til sidste sektion. Her aktiverer forenden af pallecontaineren en føler ved udløbsenden af sidste sektion, hvor rullekæderne straks sættes ud af drift ved tømning af slangerne 12, hvorved aktiveringsskinnerne 10 og de øvre kædeløb 8 sænkes fri af første pallecontainer, der nu understøttes på oversiderne af kassedragerne 4.a special addressing system for the individual pallet containers - be transported to the last section. Here the front end of the pallet container activates a sensor at the outlet end of the last section, where the roller chains are immediately put out of operation by emptying the hoses 12, whereby the activating rails 10 and the upper chain runs 8 are lowered by the first pallet container now supported on the upper sides of the box girders 4.

Ved deaktivering af sidste sektion udløses spærrebommen foran første sektion og pallecontainer nr. 2 kan indføres og transporteres hen til næstsidste sektion, der automatisk sættes ud af drift, når container nr. 2 aktiverer udløbsføleren ved næstsidste sektion osv.When deactivating the last section, the barrier boom in front of the first section is released and pallet container no. 2 can be inserted and transported to the penultimate section, which is automatically put out of operation when container no. 2 activates the outlet sensor at the penultimate section, etc.

Når kædetransportøren er fyldt op med conatinere på alle sektioner, standser drivmotoren automatisk, hvilket også kan styres tidsmæssigt, dvs. hvis der ikke inden for en bestemt tidsperiode er tilført yderligere containere til en ikke fyldt transportør.When the chain conveyor is filled with containers on all sections, the drive motor stops automatically, which can also be controlled in time, ie. if no additional containers have been delivered to an unfilled carrier within a specified period of time.

Hvis der plukkes en container fra kædetransportøren, f.eks. containeren fra næstsidste sektion, vil drivmotoren automatisk starte op, og der vil foregå en automatisk fremrykning eller akkumulering af de øvrige pallecontainere, idet fjernelsen af containeren fra næstsidste sektion vil medføre aktivering af trediesidste sektion, hvis tømning igen vil aktivere fjerdesidste sektion, men dog først, når næstsidste sektion igen er ude af drift, således at kædetransportøren til enhver tid kun belastes med fremtrækning af et enkelt transportemne.If a container is picked from the chain conveyor, e.g. the container from the penultimate section, the drive motor will automatically start up and there will be an automatic advancement or accumulation of the other pallet containers, as the removal of the container from the penultimate section will result in activation of the third-last section, whose emptying will again activate the fourth-last section. , when the penultimate section is again out of service, so that the chain conveyor is at all times loaded only with the advancement of a single conveyor.

Det skal nævnes, at kædetransportøren ifølge opfindelsen er let at reparere, idet en kassedrager 4 med aktiveringsskinne 10 og slange 12 uden videre kan afmonteres og løftes fri af rullekæden.It should be mentioned that the chain conveyor according to the invention is easy to repair, as a box girder 4 with activating rail 10 and hose 12 can easily be removed and lifted free of the roller chain.

Claims

A chain conveyor with a conveyor belt consisting of a number of sections adapted in length to the length of conveyor blanks such as pallets or storage containers (2) and comprising at each side of the conveyor belt an endless conveyor chain (8) driven by a traction station common to the entire conveyor track, each of said sections thereof comprising pneumatically actuatable means for pressing the conveyor chain (8) against the underside of a conveyor (2) located on that section, said conveyor comprising control means arranged for coordinated control of said pressing means at adjacent sections of the conveyor track, characterized in that the conveyor chains are constituted by roller chains (8), - extending through a substantially horizontal box girder (4) with a central, longitudinal slot (6), through which the roller chain (8) can pressed against the underside of the transport blank (2), said pressing means comprising one at the underside of the roller chain (8) in box elongate rail (10) placed in the cavity of the rake, which means are arranged by means of said pneumatically actuatable means in the form of an elongate inflatable hose blank (12) arranged in the box carrier (4) under a support plate (18) for the rail (10). pressing the roller chain (8) against the underside of the conveyor (2) to free-lift it from the top of the box carrier (4) and to carry the conveyor (2) to the next section of the conveyor track.