DK157651B

DK157651B - Plate element for a cheese mould, cheese mould and method for manufacture of the plate element

Info

Publication number: DK157651B
Application number: DK685288A
Authority: DK
Inventors: Poul Toft
Original assignee: Kaiser Niels
Priority date: 1987-12-22
Filing date: 1988-12-09
Publication date: 1990-02-05
Also published as: DK685288D0; DK685288A; DK157651C

Description

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iin

Opfindelsen angår et pladeelement til en osteform af den arty hvor elementet på siden modsat ostesiden har fordybninger , hvis dybde udgør den største del af elementets tykkelse, og hvis bund er forsynet med forholdvis små gen-5 nemgående huller, en osteform opbygget af pladeelementer samt en fremgangsmåde til fremstilling af pladeelementet.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a plate element for a cheese mold of the kind in which the element on the side opposite the cheese side has recesses, the depth of which forms the greater part of the element's thickness, and the bottom of which is provided with relatively small through holes. method of manufacturing the plate element.

Pladeelementer af denne art anvendes i osteformenes sider og bund, for at vallen kan presses ud af ostemassen. Ved 10 presningen, hvor et stempel trykker ned mod ostens overside, er det væsentligt, at pladeelementerne har en tilstrækkelig tykkelse og dermed stivhed til at modstå pressetrykket uden at deformeres, og at de samtidig er i stand til at bortlede den udpressede valle. For at undgå at ostens over-15 flade deformeres under presningen, har man udført drænhullerne meget små med en diameter i størrelsesordenen 0,6 mm. Denne hulstørrelse medfører, at hullernes længde ikke kan være ret stor, uden at det medfører problemer ved fremstillingen af dem.Plate elements of this kind are used in the sides and bottom of the cheese molds so that the whey can be pressed out of the curd. At the pressing, where a piston depresses against the upper side of the cheese, it is essential that the plate elements have a sufficient thickness and thus stiffness to withstand the compressive pressure without being deformed, and at the same time be able to dispense the extruded whey. In order to avoid deformation of the cheese surface during pressing, the drain holes have been made very small with a diameter of the order of 0.6 mm. This hole size means that the lengths of the holes cannot be quite large without causing problems in their manufacture.

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Ved fremstillingen af det kendte pladeelement udarbejdes fordybningerne ved fræsning af en massiv plade, der har en tykkelse svarende til pladeelementets totale tykkelse. Ved denne kendte konstruktion er man på grund af fremstil-25 lingsmåden kun i stand til at lave fordybningerne som cylindriske huller. Et forholdsvis stort areal mellem hullerne forhindrer gennemgang af valle gennem perforeringer.In the manufacture of the known plate element, the depressions are prepared by milling a solid plate having a thickness corresponding to the total thickness of the plate element. In this known construction, because of the method of manufacture, it is only possible to make the recesses as cylindrical holes. A relatively large area between the holes prevents the passage of whey through perforations.

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Formålet med pladeelementet ifølge opfindelsen er at tilve-30 jebringe en lige så stiv konstruktion som det førstnævnte kendte pladeelement, men hvor en større del af pladeelementet frilægges for perforeringer til afdræning af valle.The object of the plate element according to the invention is to provide a structure as rigid as the first known plate element, but where a larger part of the plate element is exposed to perforations for drainage of whey.

Det opnås ifølge opfindelsen med et pladeelement af den o-35 venfor nævnte art, hvis særlige træk er, at pladeelementet er opbygget af et pladestykke med relativ lille godstykkel-According to the invention, it is achieved with a plate element of the above-mentioned kind, the particular feature of which is that the plate element is made up of a plate piece with relatively small mold thickness.

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2 se og med de gennemgående huller og af et udstrakt netværk-sagtigt gitterelement med forholdsvis stor tykkelse, hvor pladestykket og gitterelementet er sammenføjet i punkter eller afgrænsede flader fordelt over pladestykket.2, and with the through holes and of an extended network-like grating element of relatively large thickness, the plate piece and the grating element being joined in points or bounded areas distributed over the plate piece.

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Pladeelementet ifølge opfindelsen har den fordel, at væggene mellem fordybningerne danner en netværksstruktur, der set vinkelret derpå f.eks. kan være rektangulær, parallelogram- eller bikageformet, det vil sige sekskantet, hvorved .10 et større areal i bunden af fordybningerne frilægges for drænhullerne. Man opnår således en bedre dræning under presningen på grund af det øgede antal huller i pladeelementet .The plate element according to the invention has the advantage that the walls between the recesses form a network structure seen perpendicularly thereto e.g. may be rectangular, parallelogram or honeycomb shaped, i.e. hexagonal, thereby exposing a larger area at the bottom of the recesses to the drainage holes. Thus, better drainage is achieved during pressing due to the increased number of holes in the plate element.

15 En med opfindelsens forudsætning mekanisk sammenlignelig konstruktion kendes fra DK fremlæggelsesskrift nr. 151.163, hvori er omtalt en osteform bestående af en indvendig kasse med forholdsvis ringe godstykkelse og en udvendig konstruktion af forstærkningsribber. Denne kendte osteform er be-20 skrevet som en løs kasse, hvorom ribberne spændes på til afstivning af kassen. Ulempen ved den beskrevne osteform er, at der ikke er fast forbindelse mellem den ydre afstivning og den indre kasse, der således kan forskydes indbyrdes, hvorfor pladeelementerne i kassen kun yder lille mod-25 stand ved deformation p.g.a. pressetrykket. Denne osteform har ikke tilstrækkelig stivhed. Herudover er formen kompliceret at arbejde med ved automatisk håndtering, når den løse inderform skal samles med forstærkningsribberne. Endelig er det ikke muligt at bruge individuelle pladeelementer til 30 opbygning af en osteform ifølge denne teknik, idet forstærkningskonstruktionen skal spændes på en færdig indre kasse.A mechanically comparable construction according to the prerequisite of the invention is known from DK Patent Specification No. 151,163, which discloses a cheese mold consisting of an inner box of relatively small thickness and an outer structure of reinforcing ribs. This known cheese form is described as a loose box about which the ribs are clamped to stiffen the box. The disadvantage of the described cheese form is that there is no fixed connection between the outer stiffener and the inner box, which can thus be displaced from one another, so that the plate elements in the box provide little resistance to deformation due to deformation. pressing pressure. This cheese form does not have sufficient stiffness. In addition, the shape is complicated to work with in automatic handling when the loose inner shape is to be joined with the reinforcing ribs. Finally, it is not possible to use individual plate elements to build a cheese mold according to this technique, since the reinforcing structure must be clamped on a finished inner box.

Hvis pladeelementet er udført som angivet i krav 2, hvor 35 der i gitterelementet mellem gitterelementet og pladestykket er udsparinger, der danner åbninger mellem pladestykket 3If the plate element is constructed as claimed in claim 2, wherein in the lattice element between the lattice element and the plate piece there are recesses which form openings between the plate piece 3.

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og gitterelementet, opnår man dels, at et større areal af pladestykket bliver frilagt for etablering af drænhullerne, og dels at åbningerne mellem gittervæggene og pladestykket giver passage for rensevæske, hvilket medfører en lettere 5 og mere effektiv rengøring af pladeelementet.and the lattice element, one obtains that a larger area of the sheet metal is exposed to establish the drainage holes, and partly that the openings between the lattice walls and the plate piece provide passage for cleaning liquid, which results in easier cleaning of the sheet element.

En osteform ifølge opfindelsen opbygget af pladeelementer ifølge opfindelsen har naturligvis de samme åbenbare fordele, som følger af pladeelementets særlige konstruktion.Of course, a cheese mold according to the invention made up of plate elements according to the invention has the same obvious advantages which follow from the special structure of the plate element.

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Opfindelsen angår også en fremgangsmåde til fremstilling af et pladeelementet.The invention also relates to a method for producing a plate element.

Ved den hidtil kendte fremstillingsmåde går man ud fra et 15 forholdsvis tykt pladeelement, hvori man fra den ene side fræser fordybninger i en dybde på ca. 80% af pladetykkelsen. På pladens modsatte side, som under brug ligger an mod osten, krydsrulleteres overfladen, og med varme nåle frembringes gennemgående huller, der udmunder i fordybningernes 20 bund på den modsatte side. Hullernes længde er ca. 5 gange deres diameter.In the prior art method, a relatively thick plate element is assumed, in which grooves are cut from one side to a depth of approx. 80% of the plate thickness. On the opposite side of the plate, which, in use, abuts the cheese, the surface is cross-rolled and with hot needles are created through holes which open into the bottom of the recesses 20 on the opposite side. The length of the holes is approx. 5 times their diameter.

Den kendte fremgangsmåde er behæftet ved to ulemper. For det første er det dyrt i materialeomkostninger og kræver 25 megen tid at fremstille på grund af fræseoperationen. For det andet er de forholdsvis små huller i fordybningernes bund svære at frembringe med sikkerhed; på grund af fremstillingsmåden fortrænges materialet snarere end at fjernes, hvilket medfører, at når elementet rengøres på sædvan-30 lig måde i 70°C varmt vand, vil de fine huller være tilbøjelige til at lukke sig, når spændingerne i materialet udløses på grund af varmepåvirkningen.The known method has two disadvantages. Firstly, it is expensive in material cost and requires 25 much time to manufacture due to the milling operation. Second, the relatively small holes at the bottom of the recesses are difficult to produce with certainty; due to the method of manufacture, the material is displaced rather than removed, which means that when the element is cleaned in the usual manner in 70 ° C hot water, the fine holes will tend to close when the stresses in the material are released due to heat stress.

Formålet med opfindelsen er at anvise en enklere og derfor 35 billigere og mindre tidskrævende fremgangsmåde til fremstilling af et pladeelement af den kendte art.The object of the invention is to provide a simpler and therefore cheaper and less time-consuming process for producing a plate element of the prior art.

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Det særlige ved fremgangsmåden ifølge opfindelsen er, at der fremstilles henholdsvis et relativt tyndt pladestykke med de gennemgående huller og et udstrakt netværksagtigt 5 gittereleijient med forholdsvis stor tykkelse, hvorefter det gitterformede element sammenføjes med pladestykket i punkter eller afgræsede flader fordelt over pladestykket.The special feature of the method according to the invention is that a relatively thin sheet piece with the through holes is made, respectively, and an extended network-like 5 grid thickness of relatively large thickness, after which the grid-shaped element is joined with the sheet piece in points or cut surfaces distributed over the sheet piece.

Man opnår herved et pladeelement med stor total tykkelse og 10 dermed stor stivhed, uden at det er nødvendigt at bortfræse store mængder materiale fra fordybningerne. Gitteret er forholdsvist billigt og hurtigt at fremstille ved kendte metoder, f.eks. ved fletning af lige strimler eller ved sprøjtestøbning. Sammenføjningen af pladestykket og gitter-15 elementet kan også ske ved kendte rationelle metoder, f.eks. vibrations- eller varmeelement-svejsning (heating element welding).This results in a sheet element having a large total thickness and thus a high stiffness, without the need to mill large quantities of material from the recesses. The grating is relatively inexpensive and quick to manufacture by known methods, e.g. by braiding straight strips or by injection molding. The joining of the sheet member and the grating element may also be effected by known rational methods, e.g. vibration or heating element welding (heating element welding).

Ved fremgangsmåden ifølge opfindelsen tilvejebringes der 20 også den mulighed, at man kan fremstille de fine drænhuller på en sikrere måde som omhandlet i krav 5, hvor disse genr nemgående huller fremstilles sammen med pladestykket ved sprøjtestøbning. Ved denne metode etableres hullerne i pladestykket uden deformationsspændinger som ved den kendte 25 teknik, og risikoen for, at hullerne lukkes under opvarmning, reduceres eller fjernes helt. Samtidig åbnes der mulighed for at lave koniske huller med den mindste dimension ved ostesiden, og man undgår grater ved hulkanterne som ved lokning af hullerne.The method according to the invention also provides for the possibility of producing the fine drainage holes in a safer manner as claimed in claim 5, wherein these through-holes are made together with the plate piece by injection molding. By this method, the holes in the sheet metal are established without deformation stresses as in the prior art, and the risk of the holes being closed during heating is reduced or completely removed. At the same time, it is possible to make conical holes with the smallest dimension at the cheese side, and avoids burrs at the hole edges as when closing the holes.

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Et udførelseseksempel for opfindelsen skal beskrives nærmere i det følgende under henvisning til tegningen, hvorAn exemplary embodiment of the invention will be described in more detail below with reference to the accompanying drawings, in which

Fig. 1 viser i perspektiv et pladestykke til brug i et 35 pladeelement ifølge opfindelsen,FIG. 1 is a perspective view of a plate piece for use in a plate element according to the invention,

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Pig. 2 viser et gitterelement til brug i et pladeelement ifølge opfindelsen, også i perspektiv,Pig. 2 shows a grid element for use in a plate element according to the invention, also in perspective,

Pig. 3 viser et udsnit af pladeelementet ifølge opfin-5 delsen, set i en retning vinkelret på elementets flade,Pig. 3 shows a section of the plate element according to the invention, viewed in a direction perpendicular to the surface of the element,

Fig. 4 viser et snit gennem pladeelementet på fig. 3 efter linien IV-IV, 10 fig. 5 viser en anden udførelsesform for pladestykket, fig. 6 viser en anden udførelsesform for pladeelementet ifølge opfindelsen set i snit.FIG. 4 shows a section through the plate element of FIG. 3 along line IV-IV, FIG. 5 shows another embodiment of the sheet metal; FIG. 6 shows another embodiment of the plate element according to the invention in section.

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En foretrukken udførelsesform for pladeelementet ifølge opfindelsen ses af fig. 3 og 4. Et pladestykke 10 med et forholdsvis stort antal huller 14 fremstilles ved sprøjtestøbning, f.eks. i materialet polypropylen. Eventuelt krydsril-20 leteres den ene side 15 således, at der opstår fine afdræ-ningskanaler med en dybde på 0,5 - 1 mm i tilknytning til hullerne 14.A preferred embodiment of the plate element according to the invention is seen in FIG. 3 and 4. A sheet 10 with a relatively large number of holes 14 is produced by injection molding, e.g. in the material polypropylene. Optionally, one side 15 is cross-grooved so that fine drainage channels with a depth of 0.5 - 1 mm are formed adjacent to the holes 14.

Der sprøjtestøbes også et gitterelement 20, der er for-25 holdsvis højt i forhold til pladestykkets 10 tykkelse, og som er forsynet med korte fødder 21 i gitterets krydsningspunkter .Also, a lattice element 20, which is relatively high relative to the thickness of the plate piece 10, is provided and is provided with short feet 21 at the intersection points of the lattice.

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De to dele 10 og 20 samles derefter med varmeelement- eller 30 vibrationssvejsning således, at fødderne 21 smelter fast til pladestykkets 10 side 12 modsat krydsrilleteringen.The two parts 10 and 20 are then joined together with heating element or vibration welding such that the feet 21 fuse to the side 12 of the plate 10 opposite the cross groove ring.

Ved en anden udførelsesform for fremgangsmåden ifølge opfindelsen forsynes et ekstruderet pladestykke 110, f.eks.In another embodiment of the method according to the invention, an extruded sheet piece 110, e.g.

35 halvfabrikata af polypropylen, med krydsrilletering 111.35 polypropylene semi-finished products, with cross groove 111.

Pladestykkets 110 modsatte side 112 udformes med en række 6The opposite side 112 of the plate piece 110 is formed with a row 6

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dybe riller 113, der kan have en indbyrdes afstand svarende til afstanden mellem hver tredje rille i rilleteringen 111. Herefter lokkes drænhullerne 114 i bunden af rillerne 113 og på steder, hvor der sammesteds på pladens 110 modsatte 5 side optræder et kryds i rilleteringen 111.deep grooves 113 which may have a spacing corresponding to the distance between every three grooves in the groove ring 111. Thereafter, the drain holes 114 are lured at the bottom of the grooves 113 and in places where, on the opposite side of the plate 110, an intersection occurs in the groove ring 111.

Derefter samles gitterelement 20 og pladestykke 110 med varmeelementsvejsning eller vibrationssvejsning som anført ovenfor.Then, grid element 20 and plate piece 110 are assembled with heating element welding or vibration welding as set forth above.

10 I begge udførelsesformer dannes åbninger 25 mellem gittervæggene 22 og pladestykkets side 12 henholdsvis 112, hvorved der frilægges størst mulig areal for etablering af drænhullerne 14 henholdsvis 114, og hvorved der tilveje-15 bringes særlig gode forhold ved rengøring af en osteform fremstillet af pladeelementer ifølge opfindelsen.In both embodiments, openings 25 are formed between the lattice walls 22 and the plate portion 12 respectively 112, thereby exposing the greatest possible area for establishing the drainage holes 14 and 114, respectively, and providing particularly good conditions for cleaning a cheese mold made from plate elements according to invention.

I andre udførelsesformer for opfindelsen kan gitteret 20 afvige ved at have form af skærende cirkler, eller med 20 sekskantede eller runde former. Endvidere kan andre fødevaregodkendte materialer anvendes indenfor opfindelsens rammer.In other embodiments of the invention, the lattice 20 may differ by the shape of intersecting circles, or by 20 hexagonal or round shapes. Furthermore, other food-approved materials can be used within the scope of the invention.

Pladeelementet ifølge opfindelsen kunne endvidere fremstil-25 les i enkelt- eller dobbeltkrum udførelse, idet gitterelementet 20, eventuelt også pladestykket 10, støbes i denne form. Derved åbnes mulighed for, at to eller flere pladeelementer ifølge opfindelsen udformes til at danne side i f.eks. en cylindrisk osteform. Pladeelementet ifølge opfin-30 delsen kan endvidere finde anvendelse som filterelement ved presning af ostemateriale.Furthermore, the plate element according to the invention could be manufactured in single or double curved embodiment, the grating element 20, possibly also the plate piece 10, being molded in this form. This opens the possibility for two or more plate elements according to the invention to be formed to form, e.g. a cylindrical cheese mold. Furthermore, the plate element of the invention may find use as a filter element in pressing cheese material.

Claims

A plate element for a cheese mold of the kind in which the element on the side opposite the cheese side has depressions, the depth of which forms the greater part of the thickness of the element and the bottom (12) is provided with relatively small through holes (14), characterized in in that the plate element is made up of a plate piece (10) of relatively small thickness and with the through holes (14) and of an extended network-like grid element (20) of relatively large thickness, the plate element (10) and the grid element (20) being joined in points or bounded surfaces distributed over the plate (10).

Plate element according to claim 1, characterized in that in the grating element (20) between the grating element (20) and the plate element (10) there are recesses which form openings (25) between the plate element (10) and the grating element (20).

Cheese mold containing one or more plate elements according to claim 1 or 2.

A method of making a plate member for a cheese mold according to claim 1 or 2 of the kind wherein the member 25 on the side opposite the cheese side has recesses, the depth of which forms the greater part of the thickness of the member and the bottom (12) is provided with small through holes (14), characterized in that a relatively thin sheet piece (10) with the through holes (14) and an extended network-like grid element (20) of relatively large thickness is produced, respectively, after which the grid-shaped element (20) ) are joined to the plate (10) in points or bounded surfaces distributed over the plate (10). 35

Method according to claim 4, characterized in that the plate piece (10) with the through holes is made by injection molding. 5