DK173729B1 - Method and plant for the manufacture of a disposable face cloth of polyurethane foam - Google Patents

Method and plant for the manufacture of a disposable face cloth of polyurethane foam Download PDF

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Publication number
DK173729B1
DK173729B1 DK7897A DK7897A DK173729B1 DK 173729 B1 DK173729 B1 DK 173729B1 DK 7897 A DK7897 A DK 7897A DK 7897 A DK7897 A DK 7897A DK 173729 B1 DK173729 B1 DK 173729B1
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washcloths
rolled
web
disposable
polyurethane foam
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DK7897A
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Danish (da)
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DK7897A (en
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Ove Fabricius
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B6 As
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Description

i DK 173729 B1in DK 173729 B1

Opfindelsen angår en fremgangsmåde samt et anlæg til fremstilling af engangsvaskeklude af polyurethanskum ved, at disse udskæres af materialelag med en tykkelse svarende til den ønskede tykkelse af vaskekludene og hvor 5 disse emballeres i et forudfastlagt antal. Yderligere angår opfindelsen engangsvaskeklude fremstillet efter fremgangsmåden eller på anlægget.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a method and a plant for the production of disposable polyurethane foam disposable cloths by cutting them with material layers having a thickness corresponding to the desired thickness of the wash cloths and packaging them in a predetermined number. Further, the invention relates to disposable wash cloths made according to the method or on the plant.

Ved de kendte teknikker til fremstilling af vaskeklude 10 benyttes firkantede blokke af polyurethanskum, hvorfra polyurethanskummet fra toppen afskæres i skiver svarende til den ønskede tykkelse af vaskekludene. De afskårne skiver føres i mindre bundter manuelt til en opskæringsmaskine. Der samles et antal skiver svarende 15 til det antal vaskeklude, der ønskes i en emballage,In the known techniques for making washcloths 10, square blocks of polyurethane foam are used, from which the polyurethane foam is cut from the top into slices corresponding to the desired thickness of the washcloths. The cut slices are manually fed into smaller bundles to a cutting machine. A plurality of slices corresponding to the number of wash cloths desired in a package are assembled,

hvorefter vaskekludene udskæres af skiverne til deres endelige størrelse, hvorefter de føres til en tredje maskine for emballering til forbrugerpakker. For at reducere volumenet af pakkerne kan vaskekludene i 20 forbindelse med emballeringen klemmens sammen. Iafter which the washcloths are cut out by the slices to their final size and then fed to a third machine for packaging for consumer packages. In order to reduce the volume of the packages, the wash cloths in connection with the packaging can be clamped together. IN

emballagen ligger de firkantede vaskeklude i lag ovenpå hinanden.on the packaging the square washcloths are layered on top of each other.

Formålet med opfindelsen er dels at forenkle produktionen 25 af engangsvaskeklude samt tilvejebringe mulighed for at kunne producere disse vaskeklude i en anden form.The object of the invention is partly to simplify the production of disposable washcloths and to provide the possibility of producing these washcloths in another form.

Dette opnås ifølge opfindelsen ved en fremgangsmåde, der er ejendommelig ved, at der anvendes kontinuerte 30 materialebaner, der oprulles i en længde svarende til det ønskede antal vaskeklude i en emballage, og hvor materialebanen før eller efter oprulningen skæres op i længderetningen i bredder svarende til den ene ønskede kantlængde af vaskekludene og hvor materialebanen forud 35 for oprulningen forsynes med tværgående afrivningsmarkeringer med en indbyrdes afstand svarende 2 DK 173729 B1 til vaskekludenes anden kantlængde og endelig emballeres vaskekludene i den oprullede tilstand.This is achieved according to the invention by a method which is characterized by the use of continuous webs of material which are rolled up to a length corresponding to the desired number of washcloths in a package and in which the material web is cut longitudinally into widths corresponding to the one desired edge length of the washcloths and wherein the web of material prior to the winding is provided with transverse tear-off marks with a spacing corresponding to the second edge length of the washcloths and finally the washcloths are packaged in the rolled-up condition.

De kontinuerte materialebaner kan skæres af cylindriske 5 støbte blokke af polyurethanskura med indstøbt foring for en drivaksel.The continuous webs of material can be cut by cylindrical 5 molded blocks of polyurethane scour with molded liner for a drive shaft.

Ved denne fremgangsmåde opnås en væsentligt forenklet produktionsproces, da vaskekludene kan fremstilles 10 kontinuert. Bl.a. undgår man den besværlige manuelle materialehåndtering, ligesom man heller ikke er bundet af begrænsede materialestykker. Fremgangsmåden giver ligeledes mulighed for at fremstille vaskekludene i ruller. Hertil er det hensigtsmæssigt at forsyne 15 materialebanen med perforeringer med en indbyrdes afstand, der svarer til den ønskede længde af vaskekludene.By this method, a substantially simplified production process is obtained since the wash cloths can be made continuously. Among other things. you avoid the cumbersome manual material handling, as well as not bound by limited pieces of material. The process also allows the cloths to be manufactured in rolls. For this purpose, it is convenient to provide the material web with perforations at a distance corresponding to the desired length of the washcloths.

Opfindelsen angår ligeledes et anlæg til fremstilling af 20 engangsvaskeklude af polyurethanskum, ved at disse udskæres af materialelag med en tykkelse svarende til den ønskede tykkelse af vaskekludene, og hvor disse emballeres i et forudfastlagt antal, og som er ejendommelig ved, at det omfatter en oprulningsenhed til 25 oprulning af kontinuerte materialebaner i længder svarende til det ønskede antal vaskeklude i en emballage, og en markeringsenhed til at forsyne materialebanen med tværgående afrivningsmarkeringer med en indbyrdes afstand svarende til vaskekludenes anden kantlængde, samt en 30 opskæringsenhed til opskæring af materialebanen før eller efter oprulningen skæres i længderetningen i bredder svarende til den ene ønskede kantlængde af vaskekludene, og endelig en emballeringsenhed til emballering af vaskekludene i den oprullede tilstand.The invention also relates to a plant for the production of 20 disposable polyurethane foam wash cloths by cutting them with material layers having a thickness corresponding to the desired thickness of the washing cloths and wherein they are packaged in a predetermined number, characterized in that it comprises a reeling unit. for rolling up continuous material webs in lengths corresponding to the desired number of washcloths in a package, and a marking unit for providing the webs with transverse rip-off markings at a distance corresponding to the second edge length of the washcloths, and a cutting unit for cutting the webs before or after rolling up. is cut longitudinally into widths corresponding to one desired edge length of the washcloths, and finally a packaging unit for packaging the washcloths in the rolled-up condition.

35 3 DK 173729 B135 3 DK 173729 B1

Anlæg kan yderligere omfatte en afskrælningsenhed til afskrælning af en kontinuert materialebane af cylindriske støbte blokke af polyurethanskum med indstøbt foring for en drivaksel.Installations may further comprise a peeling unit for peeling a continuous material web of cylindrical molded blocks of polyurethane foam with molded liner for a drive shaft.

55

Ved opfindelsen tilvejebringes således et anlæg, som kan fremstille engangsvaskeklude i en ubrudt fremadskridende proces. Hermed opnås besparelse på råmateriale og bedre tidsmæssig effektivitet. Desuden vil produktionen af 10 vaskeklude med denne teknik give en bedre udnyttelse af det disponible gulvareal.The invention thus provides a system which can produce disposable wash cloths in an uninterrupted progressive process. This results in savings on raw material and better temporal efficiency. In addition, the production of 10 washcloths with this technique will make better use of the available floor area.

Den nødvendige tykkelse af polyurethanskummet tilvejebringes af en båndkniv, hvis tværgående bevægelse 15 er tilpasset polyurethanskumblokkens rotationshastighed.The required thickness of the polyurethane foam is provided by a tape knife whose transverse movement 15 is adapted to the rotational speed of the polyurethane foam block.

Den cylindriske blok af råmateriale roterer med en hastighed, som til enhver tid er i overensstemmelse med den aktuelle diameter af blokken. Vaskekludenes tykkelse 20 bestemmes af båndknivens fremføringshastighed. Det afskårne råmateriale ledes ind imellem anlæggets styreruller. Herfra ledes råmaterialebåndet til oprulningssektionens tre ruller, hvoraf den ene er af en sådan art, at den forsyner råmater ialebåndet med 25 afrivningsperforering, medens det rulles op på et automatisk fremført paprør. Når den ønskede mængde er oprullet på paprøret stopper oprulningen, og paprør med oprullet råmateriale føres til emballering i plastfolie. Plastfolien sammensvejses, og den emballerede rulle ledes 30 til afkortningssektionen, hvor den ved hjælp af en flerbladet roterende kniv afkortes til endelige forbrugerstørreiser.The cylindrical block of raw material rotates at a rate consistent with the current diameter of the block at all times. The thickness of the washcloths 20 is determined by the conveying speed of the belt knife. The cut raw material is fed in between the guide rollers of the plant. From here, the raw material strip is fed to the three rollers of the reeling section, one of which is such that it supplies the raw material to the ribbon with 25 tear-off perforation while it is rolled up on an automatically advanced cardboard tube. When the desired amount is rolled up on the cardboard tube, the reeling stops and the cardboard tube with rolled up raw material is fed to plastic film packaging. The plastic film is welded and the packaged roll is guided to the trimming section, where it is shortened to final consumer drying by means of a multi-blade rotating knife.

En af rullerne i oprulningssektionen er af en sådan art, 35 at det oprullede materiale forsynes med afrivningsperforering. Herved opnås, uden yderligere DK 173729 B1 håndtering og arbejdsproces, den ønskede størrelse af de producerede vaskeklude.One of the rollers in the roll-up section is such that the rolled-up material is provided with tear-off perforation. Hereby, without further DK 173729 B1 handling and working process, the desired size of the washcloths produced is obtained.

Imellem oprulningssekt ionen og afkortningssektionen er 5 indbygget en emballeringssektion af en sådan art, at emballering af det færdige produkt udføres automatisk og i takt med produktionen, hvilket giver en større tidsmæssig effektivitet.Between the roll-up section and the truncation section, a packaging section is built in such a way that packaging of the finished product is carried out automatically and in step with the production, which gives a greater temporal efficiency.

10 Opfindelsen angår yderligere engangsvaskeklude fremstillet efter fremgangsmåden eller på anlægget ifølge opfindelsen og som er ejendommelig ved at være oprullede og forsynet med afrivningsperforering.The invention further relates to disposable wash cloths made according to the method or on the plant according to the invention and which are characterized by being rolled up and provided with tear-off perforation.

* 15 Opfindelsen forklares nærmere i det følgende under henvisning til tegningen. På tegningen viser:The invention will be explained in more detail below with reference to the drawings. In the drawing:

Fig. 1, et anlæg til fremstilling af engangsvaskeklude.FIG. 1, a plant for the manufacture of disposable cloths.

20 På fig. 1 er vist en principtegning af et anlæg til fremstilling af engangsvaskeklude. Råmaterialet 1 er en cylindrisk støbt blok af polvurethanskum, 2 meter lang og med en diameter på 2 meter, ned indstøbt bøsning for montering af en drivaksel 2. Drivakslen og et ophæng for 25 denne 4 er konstrueret på en sådan måde, at der nemt og hurtigt kan isættes en ny blok råmateriale. 4 viser et stykke af en båndkniv tilsluttet anlægget på en sådan måde, at når råmaterialeblokken har roteret en omgang, har båndkniven bevæget sig et stykke, svarende til en 30 vaskekluds tykkelse, ind imod råmaterialeblokkens centrum. Det fra råmaterialeblokken afskårne materiale 5 ledes ind imellem styreruller 6 i anlægget.20 In FIG. 1 is a principle drawing of a plant for the manufacture of disposable cloths. The raw material 1 is a cylindrical molded block of polyurethane foam, 2 meters long and 2 meters in diameter, down cast bush for mounting a drive shaft 2. The drive shaft and a suspension for this 4 are designed in such a way that easy and A new block of raw material can be loaded quickly. 4 shows a piece of a ribbon knife connected to the plant in such a way that when the raw material block has rotated one turn, the ribbon knife has moved a piece, corresponding to the thickness of a washcloth, towards the center of the raw material block. The material 5 cut from the raw material block is fed in between guide rollers 6 in the plant.

Omdrejningshastigheden af styrerullerne og omdrejningshastigheden af råmaterialeblokken skal styres 35 på en sådan måde, at periferihastigheden på styrerullerne 5 DK 173729 B1 skal være den samme som periferihastigheden på råmaterialeblokken, ca. 60 meter/minut.The rotation speed of the guide rollers and the rotation speed of the raw material block must be controlled in such a way that the peripheral speed of the guide rollers 5 is the same as the peripheral speed of the raw material block, approx. 60 meters / minute.

Fra styrerullerne ledes det afskårne råmateriale 5 til en 5 oprulningssektion, som består af tre ruller 7 og en tilløbsslidske for paprør 8. Oprulningssektionen er opbygget på en sådan måde, at den øverste kan bevæge sig op og ned i takt med den mængde materiale, der er oprullet på et paprør 9. En af rullerne 7 er konstrueret 10 på en sådan måde, at den forsyner det oprullede materiale med afrivningsperforeringer på en sådan måde, at afstanden imellem perforeringerne svarer til en vaskekluds længde. Når den ønskede mængde materiale er oprullet på et paprør 9, standses rotationen af 15 styrerullerne 6 og råmaterialeblokken 1. Et udkastersystem 10 går ned og griber den fyldte rulle, og fører den i positionen vist på fig. 1. Samtidigt tilføres et nyt paprør oprulningssektionen, og en ny oprulning begynder. Det fyldte paprør 9' bliver omsluttet af en 20 plastfolie 11, idet svejsekæber 12 føres sammen og emballerer det oprullede paprør 9,1. Efter sammensvejsningen af det emballerede materiale føres dette af udkastersystemet 10 over i en afkortningssektion. Herefter går udkastersystemet tilbage 25 til sin udgangsposition og venter på, at et nyt paprør vil blive oprullet. Det oprullede og emballerede materiale 9'' ligger nu i afkortningssektionen i et trug med slidser 13, med en indbyrdes afstand svarende til bredden af en vaskeklud. Et antal roterende knive 14 med 30 en indbyrdes afstand svarede til afstanden imellem slidserne 13 føres nu frem og overskærer det emballerede materiale 9'' til færdigemballerede forbrugerpakker af engangsvaskeklude.From the guide rollers, the cut raw material 5 is led to a 5 reeling section, consisting of three rollers 7 and a feed tube for cardboard tubes 8. The reeling section is constructed in such a way that the upper can move up and down in step with the amount of material which is rolled onto a cardboard tube 9. One of the rollers 7 is constructed 10 such that it provides the rolled-up material with tear-off perforations in such a way that the distance between the perforations corresponds to the length of a washcloth. When the desired amount of material is wound up on a cardboard tube 9, the rotation of the guide rollers 6 and the raw material block 1 is stopped. An ejector system 10 goes down and grabs the filled roll and carries it in the position shown in FIG. 1. At the same time, a new cardboard tube is added to the reel section and a new reel begins. The filled cardboard tube 9 'is enclosed by a plastic foil 11, welding jaws 12 being brought together and packing the reeled cardboard tube 9.1. After the welding of the packaged material, this is transferred by the ejector system 10 into a truncation section. Then the ejector system returns 25 to its initial position and waits for a new cardboard tube to be rolled up. The rolled-up and packaged material 9 '' now lies in the truncation section in a trough with slots 13, spaced apart corresponding to the width of a washcloth. A plurality of rotating blades 14 with 30 spacing corresponding to the distance between the slots 13 are now advanced and cut the packaged material 9 '' into pre-packaged consumer packages of disposable wash cloths.

Claims (9)

1. Fremgangsmåde til fremstilling af engangsvaskeklude af polynrethanskum ved, at disse udskæres af materialelag 5 med en tykkelse svarende til den ønskede tykkelse af vaskekludene, og hvor disse emballeres i et forudfastlagt antal, kendetegnet ved, at der anvendes kontinuerte materialebaner, der oprulles i en længde svarende til det ønskede antal vaskeklude i en emballage, 10 og hvor materialebanen før eller efter oprulningen skæres op i længderetningen i bredder svarende til den ene ønskede kantlængde af vaskekludene, og hvor materialebanen forud for oprulningen forsynes med tværgående afrivningsmarkeringer med en indbyrdes afstand 15 svarende til vaskekludenes anden kantlængde og endelig emballeres vaskekludene i den oprullede tilstand.A process for the manufacture of disposable polynrethane foam wash cloths by cutting them out of layer 5 of a thickness corresponding to the desired thickness of the wash cloths and packaging them in a predetermined number, characterized in that continuous webs of material are wound up in a roll. length corresponding to the desired number of washcloths in a package, 10 wherein the web of material before or after winding is cut longitudinally to widths corresponding to one desired edge length of the wiping cloth, and wherein the web of material prior to winding is provided with transverse tear-off marks with a spacing corresponding to 15 to the second edge length of the washcloths and finally the washcloths are packaged in the rolled-up condition. 2. Fremgangsmåde ifølge krav 1, kendetegnet ved, at den kontinuerte materialebane skæres af 20 cylindriske støbte blokke af polyurethanskum med indstøbt foring for en drivaksel.Process according to claim 1, characterized in that the continuous web of material is cut by 20 cylindrical molded blocks of polyurethane foam with molded liner for a drive shaft. 3. Fremgangsmåde ifølge krav 1, kendetegnet ved, at materialebanen oprulles på paprør. 25Method according to claim 1, characterized in that the web of material is wound up on cardboard tubes. 25 4. Fremgangsmåde ifølge krav 1, kendetegnet ved, at materialebanen forsynes med afrivningsperforering med en indbyrdes afstand svarende til længden af en vaskeklud. 30Method according to claim 1, characterized in that the web of material is provided with a tear-off perforation with a spacing corresponding to the length of a washcloth. 30 5. Anlæg ifølge krav 4, kendetegnet ved, at det omfatter en afskrælningsenhed til afskrælning af en kontinuert materialebane af cylindriske støbte blokke af 15 polyurethanskum med indstøbt foring for en drivakselInstallation according to claim 4, characterized in that it comprises a peel unit for peeling a continuous material web of cylindrical molded blocks of polyurethane foam with molded liner for a drive shaft 5. Anlæg til fremstilling af engangsvaskeklude af polyurethanskum ved, at disse udskæres af materialelag med en tykkelse svarende til den ønskede tykkelse af vaskekludene og hvor disse emballeres i et forudfastlagt 35 antal, kendetegnet ved, at det omfatter en opruiningsenhed til oprulning af kontinuerte 7 DK 173729 B1 materialebaner i længder svarende til det ønskede antal vaskeklude i en emballage, og en markeringsenhed til at forsyne materialebanen med tværgående afrivningsmarkeringer med en indbyrdes afstand svarende 5 til vaskekludenes anden kantlængde, samt en opskæringsenhed til opskæring af materialebanen før eller efter oprulningen skæres i længderetningen i bredder svarende til den ene ønskede kantlængde af vaskekludene og endelig en emballeringsenhed til emballering af 10 vaskekludene i den oprullede tilstand.Apparatus for the manufacture of disposable polyurethane foam disposable cloths by cutting them with material layers having a thickness corresponding to the desired thickness of the wash cloths and being packed in a predetermined number, characterized in that it comprises a continuous unit for rolling up continuous 7 DK 173729 B1 material webs in lengths corresponding to the desired number of washcloths in a package, and a marking unit for providing the web material with transverse rip-off markings at a distance of 5 corresponding to the second edge length of the washcloths, and a cutting unit for cutting the material web before or after the roll-up is cut into lengths. in widths corresponding to one desired edge length of the washcloths and finally a packaging unit for packaging the washcloths in the rolled-up condition. 6. Anlæg ifølge krav 4kendetegnet ved, at rullerne (7) i oprulningssektionen forsyner det oprullede materiale på paprøret (9) med afrivningsperforering. 20System according to claim 4, characterized in that the rollers (7) in the reeling section provide tear-off perforation of the rolled material on the cardboard tube (9). 20 6 DK 173729 B16 DK 173729 B1 7. Anlæg ifølge krav 4, 5 eller 6kendetegnet ved, at det oprullede materiale emballeres, medens et udkastersystem (10) leder det oprullede materiale til afkortningssektionen. 25System according to claim 4, 5 or 6, characterized in that the rolled-up material is packaged, while an ejecting system (10) directs the rolled-up material to the truncation section. 25 8. Anlæg ifølge krav 4, 5, 6 eller 7, kendetegnet ved, at det oprullede, emballerede og afkortede materiale er identisk med den endelige forbrugerpakke af engangsvaskeklude. 30Installation according to claims 4, 5, 6 or 7, characterized in that the rolled up, packaged and truncated material is identical to the final consumer package of disposable wash cloths. 30 9. Engangsvaskeklude fremstillet efter fremgangsmåden eller på anlægget ifølge ethvert af de foregående krav, kendetegnet ved at være oprullede og forsynet med afrivningsperforering. 35Disposable wash cloths made according to the method or on the plant according to any one of the preceding claims, characterized by being rolled up and provided with a tear-off perforation. 35
DK7897A 1997-01-21 1997-01-21 Method and plant for the manufacture of a disposable face cloth of polyurethane foam DK173729B1 (en)

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DK7897A DK173729B1 (en) 1997-01-21 1997-01-21 Method and plant for the manufacture of a disposable face cloth of polyurethane foam

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DK7897 1997-01-21
DK7897A DK173729B1 (en) 1997-01-21 1997-01-21 Method and plant for the manufacture of a disposable face cloth of polyurethane foam

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DK7897A DK7897A (en) 1998-09-03
DK173729B1 true DK173729B1 (en) 2001-08-06

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