DK168757B1

DK168757B1 - Device for optional deposition of sheets or the like

Info

Publication number: DK168757B1
Application number: DK57092A
Authority: DK
Inventors: J Rn Munch Jensen
Original assignee: Ejnar Jensen & S N A S
Priority date: 1992-05-01
Filing date: 1992-05-01
Publication date: 1994-06-06
Also published as: DK57092A; EP0568486A3; DK57092D0; EP0568486A2

Description

i DK 168757 B1in DK 168757 B1

Den foreliggende opfindelse angår en indretning af den i indledningen til krav 1 angivne art.The present invention relates to a device of the kind set forth in the preamble of claim 1.

Stableindretninger af den nævnte type er hyppigt anvendt til aflægning af vasketøjstykker i en stabel, efter at 5 de har gennemgået en foldeproces. Princippet med aflægning af tøjstykkerne eller arkene ved hjælp af et transportbånd, hvor båndet under aflægningen standses, medens en slæde, der bærer de ruller, som bærer den båndstrækning, der befinder sig over aflægningsstedet, skydes tilbage, er kendt for at 10 give en skånsom aflægning, der ikke bringer uorden i den tidligere foldning af arket. En ulempe ved princippet er, at båndføringen ofte er kompliceret og fordrer, at båndet føres over en række ruller, således at der kan kompenseres for slædens bevægelse. Specielt bliver båndføringen kompliceret 15 og pladskrævende, hvis aflægningen skal kunne foretages i en af to ved siden af hinanden placerede stabler.Stackers of the type mentioned are frequently used for depositing laundry pieces in a stack after they have undergone a folding process. The principle of depositing the garments or sheets by means of a conveyor belt in which the belt is stopped during the deposition, while a sled carrying the rollers carrying the belt stretch over the deposition site is pushed back, is known to provide a gentle deposition that does not disrupt the previous folding of the sheet. A disadvantage of the principle is that the belt guide is often complicated and requires that the belt is passed over a series of rollers so that the movement of the sled can be compensated. In particular, the banding becomes complicated and space-intensive if the laying is to be done in one of two adjacent stacks.

Formålet med opfindelsen er at tilvejebringe en indretning til valgfri stabling af arkene i to stabler, og hvor båndføringen er yderst enkel, og hvor pladsbehovet ikke er 20 større end omfanget af de to stabler.The object of the invention is to provide a device for optional stacking of the sheets into two stacks, where the banding is extremely simple and where the space requirement is not greater than the size of the two stacks.

Dette formål opnås ved indretningen ifølge opfindelsen, hvilken indretning er ejendommelig ved det i den kendetegnende del af krav 1 angivne.This object is achieved by the device according to the invention, which device is characterized by the characterizing part of claim 1.

Ved indretningen ifølge opfindelsen placeres den 25 transportbåndstrækning, som udfører aflægningen, på den ene eller den anden stabel på en slæde. Når arket eller tøj stykket ved hjælp af fødetransportbåndet er bragt ud på transportbåndet på slæden, udfører slæden en bevægelse frem og tilbage over de to stabler. Hvis arket skal aflægges på den 30 første stabel, holdes transportbåndets overpart stationær under det fremadgående slag, og hvis arket skal aflægges på den anden stabel, holdes transportbåndets overpart stationær under slædens tilbageslag. Arrangementet er yderst kompakt, idet pladsbehovet ikke er væsentligt større end pladsbehovet 35 for de to stabler. Der er dog en pris for den kompakte udformning, nemlig, at arkene kun kan føres frem i en takt, der giver tid til, at slæden mellem hver arktilførsel skal have tid til at udføre det frem- og tilbagegående slag.In the device according to the invention, the conveyor belt carrying out the deposition is placed on one or the other stack on a carriage. When the sheet or clothing piece is brought out on the carriage by means of the conveyor belt, the carriage makes a movement back and forth over the two stacks. If the sheet is to be deposited on the first stack, the upper portion of the conveyor belt is held stationary during the forward stroke, and if the sheet is to be deposited on the second stack, the upper portion of the conveyor belt is held stationary during the sledback. The arrangement is extremely compact in that the space requirement is not substantially greater than the space requirement 35 for the two stacks. However, there is a price for the compact design, namely that the sheets can be advanced only at a rate that allows time for the sled between each sheet feed to have time to perform the reciprocating stroke.

DK 168757 B1 2DK 168757 B1 2

Fordelagtige udformninger i henhold til opfindelsen er angivet i de uselvstændige krav.Advantageous embodiments of the invention are set forth in the dependent claims.

Opfindelsen skal i det følgende beskrives nærmere under henvisning til tegningen, der i skematiseret form viser 5 de bevægelige dele i en indretning til valgfri aflægning af ark i en af to stabler.BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail with reference to the drawing, which shows in schematic form the moving parts of a device for optionally depositing sheets in one of two stacks.

Ved indretningen ifølge opfindelsen·tilføres de ark, som skal stables, ved hjælp af et fødetransportbånd 1. Arkene kan være foldede vasketøjsstykker, der har gennemgået en 10 foldeproces, og fødetransportbåndet 1 kan være det bånd, hvorpå de færdigfoldede tøjstykker forlader foIdeapparatet. Arkene er placeret plant på fødetransportbåndet, som antydet ved omridset af et ark. Transportbåndet 1 drives med konstant hastighed i retning af pilen 3.In the device according to the invention, the sheets to be stacked are supplied by means of a feed conveyor 1. The sheets may be folded laundry pieces which have undergone a folding process and the feed conveyor belt 1 may be the belt on which the finished folded pieces leave the feed apparatus. The sheets are placed flat on the feed conveyor belt, as indicated by the outline of a sheet. The conveyor belt 1 is driven at a constant speed in the direction of the arrow 3.

15 I forlængelse af fødetransportbåndet 1 er der place ret et kort transportbånd 4, hvis bæreruller 5 og 6 er placeret på en slæde 7. Slæden 7 er forskydelig i vandret retning fra den viste stilling til en anden stilling, der er vist med stiplede linier. De to stillinger for slæden 7 er 20 placeret over hver sin af to stablepositioner 8 og 9 vist som to stabler. Slæden 7 er forsynet med en drivcylinder 10, hvis stempelstang via en konsol 11 er i forbindelse med slæden 7.In extension of the feed conveyor belt 1, a short conveyor belt 4 is placed, the carrier rolls 5 and 6 being placed on a carriage 7. The carriage 7 is displaceable in the horizontal direction from the position shown to another position shown in broken lines. The two positions of the carriage 7 are positioned 20 above each of two stacking positions 8 and 9 shown as two stacks. The carriage 7 is provided with a drive cylinder 10, the piston rod of which via a bracket 11 communicates with the carriage 7.

Rullen 6 på transportbåndet 7 er drevet ved hjælp af 25 en kæde eller tandrem 12, hvis underpart 13 forløber parallelt med slædens bevægelsesretning. Tandremmen er iøvrigt ført over to fritløbende ruller 14,15, samt over en drivrulle 16, der er monteret på en aksel, der ved hjælp af en udløselig kobling kan drives synkront med rullerne på trans-30 portbåndet l. Endelig er tandremmen 12 ført over en bremse 17. Underparten af tandremmen er ført hen over oversiden af et i forbindelse med rullen 6 stående tandhjul 18.The roller 6 on the conveyor belt 7 is driven by means of a chain or toothed belt 12, the lower part 13 of which runs parallel to the direction of movement of the carriage. The toothed belt is also passed over two free-running rollers 14,15, as well as over a drive roller 16 which is mounted on a shaft which can be driven synchronously with the rollers on the conveyor belt 1. Finally, the toothed belt 12 is passed over a brake 17. The lower part of the toothed belt is passed over the top of a gear 18 which is in contact with the roller 6.

Virkemåden af indretningen er følgende, dersom arket 2 skal aflægges i stablen 8. Slæden 7 befinder sig i sin ud-35 gangsstilling, i hvilken rullen 5 er placeret tæt op til tranportbåndet 1, og koblingen 16 er aktiveret således, at transportbåndet 7 drives synkront med transportbåndet 1. Arket 2 føres derved over på transportbåndet 7, hvor det ved DK 168757 B1 3 udløsning af koblingen 16 standses i den ved 19 markederede stilling. Samtidig med at drivcylinderen 10 derefter aktiveres, aktiveres bremsen 17. Derved låses underparten 13 af tandremmen 12. Ved bevægelsen af slæden 7 drives tandhjulet 5 hen langs underparten 13 og driver derved rullen 6 med en sådan hastighed, at oversiden af båndet 7 netop er ubevægelig i forhold til omgivelserne. Efterhånden som slæden bevæger sig hen mod stillingen vist med stiplede linier over stablen 9, aflægges arket på stablen 8. Samtidig med at slæ-10 den 7 returnerer til udgangsstillingen, frigøres bremsen 17.The operation of the device is as follows if the sheet 2 is to be deposited in the stack 8. The carriage 7 is in its starting position, in which the roller 5 is located close to the conveyor belt 1 and the coupling 16 is activated so that the conveyor belt 7 is driven synchronously. with the conveyor belt 1. The sheet 2 is thereby transferred to the conveyor belt 7, where the release of the coupling 16 at DK 168757 B1 3 is stopped in the position marked at 19. At the same time that the drive cylinder 10 is then activated, the brake 17. This activates the lower part 13 of the toothed belt 12. In the movement of the carriage 7, the gear 5 is driven along the lower part 13, thereby driving the roller 6 at such a speed that the upper surface of the belt 7 is precisely movable. in relation to the surroundings. As the carriage moves toward the position shown in dotted lines above the stack 9, the sheet is deposited on the stack 8. At the same time as the carriage 10 returns to its initial position, the brake 17 is released.

Dersom arket 2 skal lægges af på stablen 9, er virkemåden som følger: I udgangsstillingen af slæden 7 afbrydes koblingen 16, idet arket befinder sig i stillingen 18. Drivcylinderen 10 aktiveres, uden at bremsen 17 aktiveres. På 15 grund af friktionen i rullerne 5 og 6 samt ved tandhjulet 18 vil tandremmens 12 underpart 13 nu bevæge sig fremefter med slæden 7, hvorved rullerne 5 og 6 og båndet vil udgøres en enhed, der føres frem til stillingen over stablen 9. Derefter aktiveres bremsen 17, og drivcylinderen 10 bringes til 20 at udføre et returslag, i hvilket slæden 7 føres tilbage til udgangsstillingen. Under dette returslag er underparten 13 stationær, hvorved tandhjulet 18 ruller langs tandremmen og derved driver rullen 7 med en sådan hastighed, at oversiden af transportbåndet ikke bevæger sig i forhold til omgivel-25 serne. Slæden 7 vil derved under sit returslag aflægge arket øverst på stablen 9.If the sheet 2 is to be deposited on the stack 9, the operation is as follows: In the starting position of the carriage 7, the coupling 16 is broken, the sheet being in the position 18. The drive cylinder 10 is activated without the brake 17 being activated. Due to the friction in rollers 5 and 6 as well as at gear 18, the lower part 13 of the toothed belt 12 will now move forward with the carriage 7, whereby the rollers 5 and 6 and the belt will constitute a unit which is advanced to the position above the stack 9. the brake 17 and the drive cylinder 10 are brought to 20 to perform a return stroke, in which the carriage 7 is returned to the initial position. During this return stroke, the lower part 13 is stationary, with the sprocket 18 rolling along the toothed belt, thereby driving the roller 7 at such a speed that the top of the conveyor belt does not move relative to the surroundings. The carriage 7 will thereby, during its return stroke, place the sheet at the top of the stack 9.

Transportbåndet 7 skal have en støtrelse, der netop svarer til størrelsen af det største ark, som skal stables, og slæden skal kunne udføre en bevægelse, som netop svarer 30 til afstanden melem de to stabler. Indretningen er derfor særdeles pladsøkonomisk, idet den ikke i væsentligt omfang optager anden plads end den, som er nødvendig for stablerne. Stablerne 8 og 9 placeres fortrinsvis på borde, som kan sænkes, efterhådnen som stablerne bygges op, således at arkene 35 ved aflægningen ikke kommer til at falde over nogen større strækning.The conveyor belt 7 must have a support that corresponds exactly to the size of the largest sheet to be stacked, and the carriage must be able to execute a movement which corresponds exactly to the distance between the two stacks. The device is therefore highly economical in that it does not take up substantially any space other than that which is necessary for the stacks. The stacks 8 and 9 are preferably placed on tables which can be lowered as the stacks are built up so that the sheets 35 will not fall over any major stretch when laying.

Claims

Device for optionally depositing sheets (2) or the like, applied flatly placed on a feed conveyor (1), on one of two stacks (8,9) positioned one after the other in the conveyor belt direction, wherein device (2 ) the sheets are deposited on one of the two stacks (8,9) by moving the carrier rollers (5,6) of the conveyor belt past the stack while the conveyor belt (4) is stationary with respect to this one, characterized in that the conveyor belt (4) is approximately the same length as the sheets (2) and is mounted on a carriage (7) which is movable from a position where the conveyor belt (4) is adjacent to the feed conveyor belt (1) and is located above it. one stack (8) and another position where the conveyor belt is above the second stack (9), the device comprising drive means (10, 13) which, during the movement of the carriage (7), either maintains the upper part of the conveyor belt stationary with respect to the carriage (7) or stationary 20 relative to the stacks (8,9), the drive means for each stack being arranged to perform a full stroke back and forth between the two positions.

Device according to claim 1, characterized in that the drive means (10, 13) comprise a chain or toothed belt (13) located in the direction of movement of the carriage and which is in drive communication with one of the rollers (6) of the conveyor belt, and which has a releasable coupling connection (16) with which it can be operated synchronously with the feed conveyor belt, as well as a brake (17) with which the chain can be held stationary.

Device according to claim 2, characterized in that the chain or belt (13) in the driving means comprises a sub-section extending parallel to the path of movement of the conveyor belt, which is passed over the top of a chain or sprocket (18) of the same effective diameter as the trans-35 the roller conveyor rollers.

Device according to claim 1, 2 or 3, characterized in that a lowering table is provided under each of the two positions of the carriage for receiving the sheets.