DK173161B1 - Method and machine for cutting corners on a sheet material - Google Patents
Method and machine for cutting corners on a sheet material Download PDFInfo
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- DK173161B1 DK173161B1 DK199300038A DK3893A DK173161B1 DK 173161 B1 DK173161 B1 DK 173161B1 DK 199300038 A DK199300038 A DK 199300038A DK 3893 A DK3893 A DK 3893A DK 173161 B1 DK173161 B1 DK 173161B1
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- cutting
- stack
- machine
- blades
- knife
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/10—Making cuts of other than simple rectilinear form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
- B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Details Of Cutting Devices (AREA)
- Treatment Of Fiber Materials (AREA)
- Primary Cells (AREA)
Abstract
Description
i DK 173161 B1in DK 173161 B1
Opfindelsen angår en skæremaskine ifølge krav l's indledning.The invention relates to a cutting machine according to the preamble of claim 1.
Som eksempel på anvendelsen af et arkformigt materiale af | f.eks. metalfoliebelagt pap med afskårne hjørner skal nævnes et j 5 underlag for fødevarer, såsom skiveskåret fisk eller kød, som derefter indhylles i transparent plastfolie til dannelse af en salgsemballage.As an example of the use of a sheet material of | eg. metal foil-coated cardboard with cut corners should be mentioned a food substrate such as sliced fish or meat, which is then wrapped in transparent plastic foil to form a sales packaging.
De runde hjørner virker dels harmoniske på emballagens 10 udseende, og dels beskytter de mod beskadigelse af plastfolien, j især hvor denne krympes på emballagen. jThe round corners are partly harmonious to the appearance of the packaging 10 and partly protect against damage to the plastic film, especially where it shrinks on the packaging. j
SS
Endvidere anvendes de rundede hjørner som en naturlig form på f.eks. spillekort og andre kort, som skal håndteres på bekvem j 15 måde, og hvor spidse hjørner ville virke generende.Furthermore, the rounded corners are used as a natural form of e.g. playing cards and other cards which need to be handled in a convenient manner and where pointed corners would be troublesome.
Endelig kan man nævne bøger, herunder telefonbøger og andre opslagsværker, hvor skarpe hjørner vil blive slidt eller bukket, mens runde hjørner giver en ideel sideform.Finally, one can mention books, including directories and other reference books, where sharp corners will be worn or bent, while rounded corners provide an ideal page shape.
20 : Sådanne rundede fremstilles normalt i en skæremaskine. Et eksempel på en sådan maskine kendes fra DE 1.268.588, som !20: Such rounds are usually made in a cutting machine. An example of such a machine is known from DE 1.268.588, which!
omhandler en maskine, som kan runde alle fire hjørner i én og Ideals with a machine that can round all four corners in one and I
samme arbejdsgang. Dette sker ved hjælp af fire knive, som ! 25 samtidigt føres ned og derved afskærer hjørnerne af rektangulære ark.same workflow. This is done using four knives, which! 25 is brought down simultaneously, cutting off the corners of rectangular sheets.
Denne kendte maskine er forudindstillet til en bestemt formatstørrelse, f.eks. spillekort. En stabel rektangulære { 30 kort anbringes i en bakke med sidestyr, hvorefter fire knive med pressestempler bevæges nedad til skæring af de fire hj ørner.This known machine is preset to a specific format size, e.g. playing cards. A stack of rectangular {30 cards is placed in a side guide tray, after which four knives with press plungers are moved down to cut the four corners.
Efter fuldførelse af skæringen løftes knivene og stemplerne op, 35 hvorefter de skårne kort kan fjernes fra bakken og en ny stabel indlægges.After the cutting is completed, the knives and pistons are lifted, 35 after which the cut cards can be removed from the tray and a new stack inserted.
2 DK 173161 Bl2 DK 173161 Bl
Skæringen sker alene ved hjælp af de fire bevægelige knive, Λ hvilket sætter en grænse for højden af stablen og dermed maskinens skærekapacitet, da skæringen vil blive upræcis og skærene af en ringe kvalitet, dersom stablen bliver for høj.The cutting is done only by means of the four movable blades, Λ which limits the height of the stack and thus the cutting capacity of the machine, since the cutting will be imprecise and the cuts of poor quality if the stack becomes too high.
5 Denne ulempe skyldes især knivenes utilstrækkelig styring nær bearbejdningsstedet.5 This disadvantage is mainly due to the insufficient control of the blades near the machining site.
Dette sætter således en grænse for maskinens anvendelighed, idet den dels er begrænset til et bestemt format, dels til en 10 manuel indfødning og udtagning af arkstablen, og dels til en skærekapacitet, som er begrænset til en relativt lav stabel.Thus, this limits the utility of the machine, being limited to a particular format, partly to a manual feeding and removal of the sheet stack, and partly to a cutting capacity limited to a relatively low stack.
Fra US-A-3,125,920 kendes ligeledes en maskine ifølge krav l's indledning.From US-A-3,125,920 a machine according to the preamble of claim 1 is also known.
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En anden maskine til at runde hjørner på en papirstak kendes fra US patent No. 3,656,387. Denne maskine er håndbetjent og er ikke i stand til at skære alle stakkens fire hjørner af i én betjening. Den har imidlertid underknive under skæreknivene.Another machine for rounding corners on a stack of paper is known from US Pat. 3656387. This machine is hand operated and is unable to cut all four corners of the stack into one operation. However, it has sub-blades under the cutting blades.
2020
Ulempen ved de ovenfor nævnte kendte maskiner er, at skæret på skæreknivene strækker sig i en plan parallel med arket, hvorved hvert hjørne tvinger sig vej gennem et ark med den samlede længde af skæret virkende samtidig. På denne måde er det ikke 25 muligt at fremstille et fuldstændigt rent og skarpt skær.The disadvantage of the aforementioned known machines is that the cutter on the cutting blades extends in a plane parallel to the sheet, whereby each corner forces its way through a sheet with the total length of the cutter acting simultaneously. In this way it is not possible to make a completely clean and sharp cut.
Formålet med opfindelsenThe object of the invention
Det er opfindelsens formål af afhjælpe disse mangler og begrænsninger ved de kendte maskiner til afskæring af hjørner 30 på en arkstabel, og dette opnås ved at tilvejebringe en skæremaskine ifølge krav 1. Skæreknivenes skær strækker sig langs en opadgående rettet bue mellem de yderste punkter på knivenes skær. Skæreknivene tilspidser under dannelse af en kile hvis spidser udgøres af skærets laveste punkter, hvorved 35 de yderste ender således strækker sig som angrebsspidser gennem stablen.It is the object of the invention to remedy these deficiencies and limitations of the known machines for cutting corners 30 on a sheet stack, and this is achieved by providing a cutting machine according to claim 1. The cutting blades extend along an upwardly directed arc between the outermost points of the blades. glow. The cutting blades taper to form a wedge the tips of which are constituted by the lowest points of the cutting, thus extending the outer ends as attack tips through the stack.
3 DK 173161 B13 DK 173161 B1
Skæret på hver kniv tvinger sig successivt vej gennem et ark, og det mellemliggende og underliggende materiale presses sammen under selve skæringen, resulterende i et præcist og rent skær.The cutter on each knife successively forces its way through a sheet, and the intermediate and underlying material is compressed during the cutting itself, resulting in a precise and clean cut.
5 En skæremaskine med en hidtil ukendt høj kapacitet tilvejebringes således, med den virkning, at højden af stablen kan være op til 500 mm med et perfekt skæreresultat, som dels skyldes de kombinerede skær, som omfatter en skærekniv og en underkniv, for derved at sikre et ensartet skær gennem hele 10 stablen og dels skyldes at trykfoden bliver presset ned for at sikre, at stablen er solidt fastholdt under skæringen.5 A cutting machine of unprecedented high capacity is thus provided, with the effect that the height of the stack can be up to 500 mm with a perfect cutting result, partly due to the combined inserts comprising a cutting knife and a lower knife, thereby ensuring a uniform cutting throughout the entire stack and partly because the presser foot is pressed down to ensure that the stack is firmly held during cutting.
iin
Foruden den øgede skærekapacitet og det perfekte skæreresultat simplificeres opgaven af kontinuiteten, som maskinen tillader, 15 da en stabel kan indfødes ind i maskinen, fortsætte i samme plan indvendigt i maskinen og efter afslutning af skæringen bevæges ud gennem maskinens modsatte ende.In addition to the increased cutting capacity and the perfect cutting result, the task of the continuity allowed by the machine is simplified, 15 since a stack can be fed into the machine, continue in the same plane inside the machine and after the cutting is moved out through the opposite end of the machine.
Skæringen kan således automatiseres, maskinen bliver en 20 kontinuerlig maskine, hvorved de løbende omkostninger reduceres betydeligt.The cutting can thus be automated, the machine becomes a continuous machine, thereby significantly reducing running costs.
Hurtig indfødning og fjernelse sikres ved at lade en ny stabel skubbe de færdigskårne stabler ud af maskinen. Herved øges 25 maskinens produktivitet og reducerer det manuelle arbejde i forbindelse med skæringen.Fast feeding and removal is ensured by letting a new stack push the finished stacks out of the machine. This increases the machine's productivity and reduces the manual work of cutting.
Ved at konstruere maskinen således, at knivene er justerbare alt efter bredden såvel som længden af stablen, bliver det 30 muligt at skære forskellige størrelser ark i én maskine.By designing the machine so that the blades are adjustable according to the width as well as the length of the stack, it becomes possible to cut different sizes of sheets into one machine.
Maskinen kan justeres ved hjælp af en simpel justeringsindretning. jThe machine can be adjusted using a simple adjustment device. j
Dette muliggør en hidtil ukendt høj grad af tilpasning alt ) . 35 efter forskellige arkstørrelser, og uden at det sker på i bekostning af maskinens enestående skæreegenskaber. i 4 DK 173161 B1This enables an unprecedented high degree of customization all). 35 for different sheet sizes and without compromising the machine's unique cutting properties. in 4 DK 173161 B1
Ved at montere hver skærekniv på en knivholder og at montere holderen på en bjælke eller et hoved, som er glidbart på et søjlestyr ved hjælp af en arbejdsmotor sikres en perfekt styring og nedpresning af knivene, ligesom knivenes indbyrdes 5 afstand kan justeres ved regulering af knivholderne.By mounting each cutting knife on a knife holder and mounting the holder on a beam or head which is slidable on a column guide by means of a working motor, perfect control and pressing of the knives is ensured, and the distance between the knives can be adjusted by adjusting the knife holders. .
Ved at montere hver underkniv på en holder, som er forsynet med et styr, hvorpå skæreknivene kan glide, sikres et perfekt skæreresultat, dels et rent skær, og dels en skånsom skæring 10 for knivene på grund af det præcise samvirke mellem skærknivene og underkniven.By mounting each lower knife to a holder provided with a guide on which the cutting blades can slide, a perfect cutting result, partly a clean cut, and partly a gentle cutting 10 for the blades is ensured because of the precise interaction between the cutting blades and the lower knife.
Ved at skære efter et cirkeludsnit, idet man derved kan udforme underkniven som et cirkulært skiveformet knivemne, der kan 15 drejes, når det er slidt, opnås en betydelig besparelse og nedsættelse af antallet af værktøjsskift.By cutting after a circular cut, thereby forming the lower knife as a circular disc shaped blade blank, which can be rotated when worn, a considerable saving and reduction in the number of tool changes is achieved.
Tecm ingen 20 Opfindelsen vil i det efterfølgende afsnit blive nærmere beskrevet under henvisning til tegningen, hvor fig. 1 viser en skæremaskine ifølge opfindelsen uden arkstabel, 25 fig. 2 viser i forenklet form en arkstabel under indføringen i maskinen, fig. 3 viser stablen efter indføringen og med trykfoden nedpresset, 30 fig. 4 viser stablen under skæringen, fig. 5 viser stablen på vej ud af maskinen, 35 fig. 6 viser detaljer af skæreknivene og deres styring, 5 DK 173161 B1 fig. 7 viser skæreknivene under deres nedpresning og skæring, fig. 8 viser knivsættets form, og 5 fig 9 viser knivsættets samvirke.The invention will be described in more detail in the following section with reference to the drawing, in which: FIG. 1 shows a cutting machine according to the invention without sheet stack; FIG. 2 shows, in simplified form, a sheet stack during insertion into the machine; FIG. 3 shows the stack after insertion and with the presser foot depressed; FIG. 4 shows the stack during the cutting; FIG. 5 shows the stack on its way out of the machine; FIG. 6 shows details of the cutting blades and their control; FIG. 7 shows the cutting blades during their pressing and cutting; FIG. 8 shows the shape of the knife set, and 5 figure 9 shows the interaction of the knife set.
Beskrivelse af udførelseseksempletDescription of the embodiment
Et eksempel på en skæremaskine ifølge opfindelsen er vist i 10 fig. 1.An example of a cutting machine according to the invention is shown in FIG. First
Maskinen er opbygget på et stel med ben, hvorpå transport- og skæreenheden er opbygget.The machine is built on a frame with legs on which the transport and cutting unit is built.
15 Transportenheden omfatter et indføringsplan, som er vist til venstre på stellet, hvilket plan er forsynet med et langsgående styr 2, som forløber i maskinens tranpor tretning, og som er indstillet således, at en ikke vist arkstabel kan placeres på planet med sin ene endeflade hvilende mod styret 2.The transport unit comprises an insertion plane shown to the left of the frame, which plane is provided with a longitudinal guide 2 extending in the machine's conveyor direction and which is adjusted so that a sheet stack not shown can be placed on the plane with its one end face resting against the handlebar 2.
2020
Herved kan en arm 3, som er bevæget af en ikke vist arbejdsmotor, trykke mod stablens bagkant og derved indskyde stablen i selve skæreenheden.Hereby, an arm 3, which is moved by a working motor (not shown), can push against the rear edge of the stack and thereby insert the stack into the cutting unit itself.
25 Skæreenheden er opbygget af to sektioner, hvis indbyrdes afstand kan indstilles efter bredden af stablen.The cutting unit is made up of two sections whose spacing can be adjusted according to the width of the stack.
Hver sektion omfatter en cylinder 8 med en stempelstang, som er forbundet til en bro eller en bjælke 9, som kan glide op og ned 30 på et søjlestyr 10, som hviler på et fundament på stellet.Each section comprises a cylinder 8 with a piston rod connected to a bridge or beam 9 which can slide up and down 30 on a column guide 10 which rests on a foundation of the frame.
Forneden på søjlestyret er der anbragt afstandsbøsninger 18 til begrænsning af den nedadgående bevægelse.At the bottom of the column guide, spacer bushes 18 are provided to limit the downward movement.
, 35 Arbejdsmotoren 8 er monteret på en fast bro eller bjælke 20, hvilende på søjlestyret 10.The work motor 8 is mounted on a fixed bridge or beam 20, resting on the column guide 10.
6 DK 173161 B16 DK 173161 B1
Afstanden mellem de to sektioner kan indstilles ved hjælp af et håndhjul 17 således, at maskinen kan justeres til den ønskede skærebredde på stablen.The distance between the two sections can be adjusted by means of a handwheel 17 so that the machine can be adjusted to the desired cutting width of the stack.
5 Til styring af stablen under indføringen i maskinen er der monteret fire styr 4, hvorimellem stablen kan placeres. Til begrænsning af stablens indføring i maskinen og til fastlæggelse af stablens position, er der monteret et endestop 5, som kan hæves og sænkes ved hjælp af en arbejdsmotor 6.5 To control the stack during insertion into the machine, four guides 4 are mounted between which the stack can be placed. To limit the stacking insertion into the machine and to determine the stacking position, an end stop 5 is mounted which can be raised and lowered by means of a working motor 6.
10 Endestoppets position kan indstilles, idet dets motor 6 med bæring kan forskydes i et spor 21 på den øverste bro 20 og fastgøres til denne.The position of the end stop can be adjusted as its motor 6 with bearing can be displaced in a groove 21 on the upper bridge 20 and secured to it.
Når stablen er indført i maskinen mellem styret 4 og 15 endestoppet 5, nedpresses en trykfod 7 ved hjælp af en arbejdsmotor, hvilken trykfod er udformet som en plade, som sammentrykker og fastholder stablen under den efterfølgende procedure.When the stack is inserted into the machine between the guide 4 and 15 the end stop 5, a presser foot 7 is pressed down by means of a working motor, which presser foot is designed as a plate which compresses and retains the stack during the subsequent procedure.
20 Endelig er der selve skæreindretningen, som omfatter fire skæreknive, som hver er fastgjort til sin knivholder 26, som er forskydeligt monteret på knivholderbroen 9. Afstanden mellem skæreknivene kan derved indstilles efter stablens længde.Finally, there is the cutting device itself, which comprises four cutting knives, each attached to its knife holder 26, which is slidably mounted on the knife holder bridge 9. The distance between the cutting knives can thereby be adjusted according to the length of the stack.
25 Knivsættene omfatter hver en underkniv 12, som er fastgjort i en holder 13, som tillige bærer et søjlestyr 14 for skæreknivenes holder 26 således, at der er sikret en præcis styring og dermed samvirke mellem de enkelte over- og underknive i hvert knivsæt.The knife sets each comprise a sub-knife 12, which is secured in a holder 13, which also carries a column guide 14 for the cutting knife holder 26 so that precise control is ensured and thus cooperate between the individual upper and lower knives in each knife set.
3030
Hver holder 13 kan forskydes mellem en styreskinne 15 og et styrestykke på fundamentet således, at afstanden mellem skæresættene kan indstilles præcist i maskinens længderetning.Each holder 13 can be displaced between a guide rail 15 and a guide piece on the foundation such that the distance between the cutting sets can be precisely adjusted in the longitudinal direction of the machine.
35 Modsat indføringsplanet er der monteret et transportbånd 22, ! som kan bevæge den færdigskårne stabel væk fra skæreenheden.35 Opposite the entry plane is a conveyor belt 22,! which can move the pre-cut stack away from the cutting unit.
7 DK 173161 B17 DK 173161 B1
Endelig er der monteret et skab 23 på stellet, i hvilket skab de elektriske styringer er indbygget, og som styrer maskinens enkelte funktioner ved hjælp af almindeligt kendte hydrauliske og/eller pneumatiske styremidler til arbejdsmotorerne.Finally, a cabinet 23 is mounted on the frame into which the electrical controls cabinet is built and which controls the individual functions of the machine by means of commonly known hydraulic and / or pneumatic control means for the working motors.
55
Skæremaskinen virker som beskrevet nedenfor med henvisning til fig. 2-9.The cutting machine operates as described below with reference to FIG. 2-9.
Skæremaskinen indstilles efter aktuelle stabelmål, således at 10 knivsættene 11, 12 netop er positionerede ud for stabel l's hjørner, når stablen 1, som vist i fig. 2 er placeret i maskinen mellem styrene 4 og endestoppet 5, som vist på fig 3. .The cutting machine is adjusted according to current stack dimensions so that the knife sets 11, 12 are precisely positioned next to the corners of stack 1 when the stack 1, as shown in fig. 2 is located in the machine between the guides 4 and the end stop 5, as shown in Fig. 3.
I denne position nedpresses trykfoden 7 således, at stablen 1 15 fastholdes sammenpresset i skærepositionen.In this position, the presser foot 7 is pressed down so that the stack 1 15 is held compressed in the cutting position.
Herefter aktiveres cylindrene 8, og overknivene på broerne 9 nedpresses gennem stablen l's hjørner 24.Then the cylinders 8 are actuated and the upper knives on the bridges 9 are pressed down through the corners 24 of the stack 1.
20 Efter afskæringen af hjørnerne løftes broerne 9 med skæreknivene 11 samtidigt med, at trykfoden 7 og endestoppet 5 hæves, således at den hjørneskårne stabel 1 kan føres ud på transportbåndet 22, som vist i fig 5.20 After cutting the corners, the bridges 9 with the cutting blades 11 are raised at the same time that the presser foot 7 and the end stop 5 are raised, so that the corner cut stack 1 can be carried out on the conveyor belt 22, as shown in Fig. 5.
25 Denne udskydning af stablen sker ved hjælp af bevægeorganet 3, når dette fører en ny stabel 1 ind i maskinen til skæring.25 This stacking is effected by means of the moving member 3 as this leads a new stack 1 into the machine for cutting.
Herefter kan skæreprocessen gentages, og der kan således skæres hjørner i en kontinuerlig automatiseret proces.After this, the cutting process can be repeated and thus corners can be cut in a continuous automated process.
30 På denne måde kan op til 30.000 ark skæres pr. time, hvilket langt overstiger det antal ark, som kan skæres ved hjælp af de hidtil kendte maskiner.In this way, up to 30,000 sheets can be cut per piece. which far exceeds the number of sheets which can be cut by the known machines.
Når denne produktionskapacitet kan opnås, så skyldes det ikke , 35 mindst den præcise styring af skæreknivens bevægelse og selve knivsættets udformning.When this production capacity can be achieved, it is not due to at least the precise control of the cutting blade movement and the design of the knife set itself.
8 DK 173161 B18 DK 173161 B1
Som vist i fig. 6 er skæreknivene 11 monteret på holderen 16, som er styret af søjlen 14, som igen er fast med underkniven 12. Herved er skærekniven 11 styret i hele sin slaglængde, og der opnås en helt ensartet afskæring af hjørnerne 24, idet 5 styringen forløber i hele skærelængden.As shown in FIG. 6, the cutting blades 11 are mounted on the holder 16, which is guided by the column 14, which in turn is fixed with the lower knife 12. Hereby the cutting blade 11 is guided throughout its stroke, and a completely uniform cutting of the corners 24 is achieved, the control extending in the entire cutting length.
På fig. 7 er vist, hvorledes skærekniven 11's spidse skær 25 fikserer arkene i stablen 1, således at den efterfølgende skæring af hjørnerne 24 sker i en tilstand, hvor 10 hjørnematerialet er sammenpresset og spændt i forhold til knivkanten på skærekniven 11.In FIG. 7 is shown how the cutting edge 25 of the cutting knife 11 fixes the sheets in the stack 1 so that the subsequent cutting of the corners 24 takes place in a state where the corner material is compressed and tensioned with respect to the knife edge of the cutting knife 11.
Som det fremgår af fig. 8 er skæreknivene 11 udformet med en kærv, der er cirkeludsnitsformet, og da knivene samtidigt er 15 kileformede, dannes det på fig. 7 viste spidse skær 25 med et i bue forløbende mellemskær.As shown in FIG. 8, the cutting blades 11 are formed with a notch which is circularly cut, and since the knives are at the same time 15 wedge-shaped, it is formed in FIG. 7 shows a sharp cutter 25 with an arcuate intermediate cutter.
Når dette skær skal skærpes, sker dette ved en simpel slibning af den skrå underside.When this cut is to be sharpened, this is done by a simple grinding of the inclined underside.
2020
Underkærven er vist på fig. 8 og 9. Den er udformet som en cirkulær skive 27, i alt væsentligt med den samme diameter som skærekniven 11. En skrue 28 fastholder skiven 27 til holderen 12 således, at når cirkelskæret 30 er slidt, kan skruen 28 25 løsnes, hvorefter kniven 27 kan drejes ved hjælp af et håndtag med en tap i hullerne 29, til et nyt skær 30 er fremført under skærekniven 11.The lower notch is shown in FIG. 8 and 9. It is formed as a circular disc 27, substantially the same diameter as the cutting knife 11. A screw 28 retains the disc 27 to the holder 12 such that when the circular cutter 30 is worn, the screw 28 25 can be loosened, after which the knife 27 can be turned by means of a handle with a pin in the holes 29, until a new cutter 30 is advanced under the cutting knife 11.
Ved denne overordentlig enkle udformning af knivsættet, kan der 30 skæres præcist og ensartet gennem en arkstabel på op til 500 mm i højden, og uden at knivskærene bliver hårdt belastede, hvorved standtiden bliver meget høj. Endvidere er kvaliteten af skæringen høj, således at afrundingen vil være ens i hele stablens højde.By this extremely simple design of the knife set, 30 can be cut precisely and uniformly through a sheet stack of up to 500 mm in height, and without the cutting edges being severely loaded, thereby making the stand time very high. Furthermore, the quality of the cutting is high, so that the rounding will be the same throughout the height of the stack.
3535
Claims (5)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK199300038A DK173161B1 (en) | 1993-01-14 | 1993-01-14 | Method and machine for cutting corners on a sheet material |
EP94610001A EP0614734B1 (en) | 1993-01-14 | 1994-01-12 | Method and machine for cutting corners off sheet material |
AT94610001T ATE168311T1 (en) | 1993-01-14 | 1994-01-12 | METHOD AND DEVICE FOR ROUNDING CORNERS OF FLAT CUTTINGS |
DE69411608T DE69411608T2 (en) | 1993-01-14 | 1994-01-12 | Method and device for rounding corners of flat blanks |
ES94610001T ES2120593T3 (en) | 1993-01-14 | 1994-01-12 | CUTTING MACHINE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK3893 | 1993-01-14 | ||
DK199300038A DK173161B1 (en) | 1993-01-14 | 1993-01-14 | Method and machine for cutting corners on a sheet material |
Publications (3)
Publication Number | Publication Date |
---|---|
DK3893D0 DK3893D0 (en) | 1993-01-14 |
DK3893A DK3893A (en) | 1994-07-15 |
DK173161B1 true DK173161B1 (en) | 2000-02-14 |
Family
ID=8089036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK199300038A DK173161B1 (en) | 1993-01-14 | 1993-01-14 | Method and machine for cutting corners on a sheet material |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0614734B1 (en) |
AT (1) | ATE168311T1 (en) |
DE (1) | DE69411608T2 (en) |
DK (1) | DK173161B1 (en) |
ES (1) | ES2120593T3 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107738884B (en) * | 2017-11-14 | 2024-02-27 | 成都正恒动力股份有限公司 | Pressure test system with automatic feeding mechanism for engine cylinder body machining |
CN110549424A (en) * | 2019-09-04 | 2019-12-10 | 鹤山雅图仕印刷有限公司 | Book gate corner equipment |
CN112454462B (en) * | 2020-11-04 | 2022-03-01 | 广东金宣发包装科技有限公司 | Full-automatic integrated fillet machine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3125920A (en) * | 1964-03-24 | Figure | ||
DE40784C (en) * | W. LEO in Stuttgart, Paulinenstr. 22 | Corner rounding machine with automatic pressing | ||
DE1944464A1 (en) * | 1969-02-19 | 1970-09-10 | Altenburger Spielkartenfabrik | Device for the simultaneous rounding of corners of flat blanks |
US3656387A (en) * | 1970-05-27 | 1972-04-18 | Challenge Machinery Co | Corner cutter machine |
FR2271894A1 (en) * | 1974-05-21 | 1975-12-19 | Ass Eng Ltd | Sintered polygonal cutter bit - mounted on holder with angular adjustment |
DE4104428A1 (en) * | 1990-04-21 | 1991-10-24 | Kolbus Gmbh & Co Kg | DEVICE FOR REMOVING THE CORNERS OF ARC STACKS |
-
1993
- 1993-01-14 DK DK199300038A patent/DK173161B1/en not_active IP Right Cessation
-
1994
- 1994-01-12 ES ES94610001T patent/ES2120593T3/en not_active Expired - Lifetime
- 1994-01-12 EP EP94610001A patent/EP0614734B1/en not_active Expired - Lifetime
- 1994-01-12 DE DE69411608T patent/DE69411608T2/en not_active Expired - Fee Related
- 1994-01-12 AT AT94610001T patent/ATE168311T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0614734B1 (en) | 1998-07-15 |
EP0614734A1 (en) | 1994-09-14 |
DK3893A (en) | 1994-07-15 |
DK3893D0 (en) | 1993-01-14 |
DE69411608T2 (en) | 1999-03-18 |
DE69411608D1 (en) | 1998-08-20 |
ATE168311T1 (en) | 1998-08-15 |
ES2120593T3 (en) | 1998-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A0 | Application filed | ||
B1 | Patent granted (law 1993) | ||
PBP | Patent lapsed |
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