EP1166980A2 - Verfahren zum Schneiden eines Bogens zur Herstellung von Verpackungshüllen für pastöse Produkte, sowie Schneidwerkzeug zur Herstellung einer Verpackungshülle und Verpackungshülle für pastöse Produkte - Google Patents

Verfahren zum Schneiden eines Bogens zur Herstellung von Verpackungshüllen für pastöse Produkte, sowie Schneidwerkzeug zur Herstellung einer Verpackungshülle und Verpackungshülle für pastöse Produkte Download PDF

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Publication number
EP1166980A2
EP1166980A2 EP01830412A EP01830412A EP1166980A2 EP 1166980 A2 EP1166980 A2 EP 1166980A2 EP 01830412 A EP01830412 A EP 01830412A EP 01830412 A EP01830412 A EP 01830412A EP 1166980 A2 EP1166980 A2 EP 1166980A2
Authority
EP
European Patent Office
Prior art keywords
sheets
sheet
section
transversal
cutter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01830412A
Other languages
English (en)
French (fr)
Other versions
EP1166980B1 (de
EP1166980A3 (de
Inventor
Mauro Bianchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sympak Corazza SpA
Original Assignee
CORAZZA SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CORAZZA SpA filed Critical CORAZZA SpA
Publication of EP1166980A2 publication Critical patent/EP1166980A2/de
Publication of EP1166980A3 publication Critical patent/EP1166980A3/de
Application granted granted Critical
Publication of EP1166980B1 publication Critical patent/EP1166980B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type

Definitions

  • the present invention relates to a process for the production of sheets for making wrappers for a pasty food product, such as processed or melted cheese.
  • Conventional wrappers containing a single portion of processed or melted cheese for example a portion with a base in the shape of the sector of a circle, comprise an outer wrap, made of foil and comprising a lower portion in the shape of a tray and a sheet which forms an upper lid and is held on the tray-shaped body by tabs which can be folded horizontally, extending from the lateral walls of the tray-shaped portion.
  • the lower, tray-shaped part of the container is obtained from a single sheet of foil with a suitable profile, which is folded in such a way as to form a base, the side walls of the wrapper and the tabs which hold on the lid.
  • a continuous web of foil is unwound from a reel which is driven with an alternating feed and dwell motion.
  • a cutter device with a cutter blade shaped according to the profile of the sheet to be made, separates the individual sheets from the continuous web.
  • the continuous web dwell state allows the cutter device to separate the individual sheet which will form the outer wrap of the wrapper with a single cutting motion.
  • a process for making sheets of a material which can be folded to obtain a wrapper, in particular for a pasty product, such as processed or melted cheese or similar products.
  • a wrapper in particular for a pasty product, such as processed or melted cheese or similar products.
  • Each sheet has a peripheral profile with a transversal front edge and a transversal back edge opposite the transversal front edge, and opposing first and second lateral edges.
  • the sheets are obtained by cutting a continuous web of the foldable material, the web being cut longitudinally to form the lateral edges of the sheets, and transversally to form the front and back edges of the sheets.
  • the process is characterised in that at least the step of longitudinally cutting the sheet is carried out with the web moving with continuous feed.
  • the present invention also relates to a rotary cutter part for making the sheets and a wrapper for a pasty product using the sheet obtained with the present process.
  • Figure 1 illustrates a preferred embodiment of a sheet 10 made of a material which can be folded to obtain a wrapper, in particular for a pasty product, such as processed or melted cheese or similar products.
  • the sheet 10 is suitably folded to obtain the lower, tray-shaped part 12 of the wrapper illustrated in Figure 2.
  • the tray-shaped portion 12 of the wrapper comprises a base 16, which has the shape of a sector of a circle but which could also be triangular, longitudinal lateral walls 20, 22 and a back wall 24, which are folded perpendicularly to the base, horizontal tabs 26, 28, 30 extending respectively from the longitudinal lateral walls 20, 22 and the back wall 24 and folded parallel with the base to hold the pasty product, an upper lid 31, in the form of a separate triangular sheet, made of the same material as is used to make the lower, tray-shaped portion 12.
  • the numerals 34, 36, 40 denote the fold-over or folding tabs for the corresponding lateral walls of the wrapper.
  • the sheet 10 is folded along the fold or crease lines (illustrated with a dashed line in Figure 1) to obtain a central panel 16 designed to form the base of the wrapper, panels 20, 22, 24 arranged around the edge of the base panel 16, which form the longitudinal lateral walls and the back wall of the wrapper, and panels 26, 28, 30 designed to form corresponding tabs for holding on the lid 31, extending from the panels 20, 22, 24 for the longitudinal lateral walls and back wall.
  • the central panel 16 is separated from the panels 20, 22 designed to form the longitudinal walls of the wrapper by longitudinal fold lines 1620 and 1622 (converging at a vertex point V), and is separated from the panel 24 which forms the back wall by an arced fold line 1624 extending substantially transversally to the longitudinal line M.
  • the panels 20, 22, 24 are, in turn, separated, by respective fold lines 2026, 2228, 2430, from the panels 26, 28, 30, which form the tabs for holding the lid on the present wrapper.
  • the panels 20, 22 are also separated at the front, by fold lines 2040, 2240, from panels 40a, 40b which can in turn be folded along an intermediate separating crease line (labelled 40ab), which divides the two panels 40a and 40b extending from the vertex V of the base panel 16 of the sheet 10.
  • fold lines 2040, 2240 from panels 40a, 40b which can in turn be folded along an intermediate separating crease line (labelled 40ab), which divides the two panels 40a and 40b extending from the vertex V of the base panel 16 of the sheet 10.
  • the panels 40a and 40b are designed so that, in the folded configuration, they form the tab at the vertex 40, as illustrated in Figure 2, which is folded over a lateral wall 22 of the wrapper.
  • the panels 20, 22 are also separated, by fold lines 2034, 2236, from panels 34a, 36a, which can in turn be folded along intermediate fold lines (labelled 34ab, 36ab), relative to corresponding panels 34b and 36b, which are in turn separated by fold lines 2434 and 2436 from the back panel 24.
  • panels 34a, 34b and 36a, 36b as described in detail below, form the fold-over tabs 34 and 36, which are folded over the longitudinal sides 20, 22 of the wrapper.
  • the rear edges of the blank, separated by fold lines, also have panels, labelled 34'a, 34'b and 36'a, 36'b which, in the folded configuration, form double layer fold-over portions, extending above the corresponding longitudinal lid tabs 26, 28 and which are labelled 34' and 36' in Figure 2.
  • the sheet 10 has a peripheral profile 15 which normally has the shape of an asymmetrical hexagon, comprising a transversal front edge 15a and a transversal back edge 15b opposite the transversal front edge 15a, and opposing first and second lateral edges 15c, 15d comprising front sections 15'c, 15'd extending from the front edge 15a at an angle to the axis M which widens the sheet 10 relative to the front edge 15a.
  • first and second lateral edges 15c, 15d comprising front sections 15'c, 15'd extending from the front edge 15a at an angle to the axis M which widens the sheet 10 relative to the front edge 15a.
  • the rear sections 15"c, 15"d are shorter and set at a sharper angle than the front sections 15'c, 15'd.
  • the individual sheet 10 also has a third rear angled section 15"'c, 15"'d of the edge of the sheet extending, between the second rear section 15"c, 15"d and the transversal back edge 15b, at an angle to the longitudinal axis M which is concordant with and greater than that of the second rear longitudinal section 15"c, 15"d.
  • a continuous foldable web 11 preferably consisting of aluminium foil, is fed with a continuous motion.
  • An example of this web feed movement is provided in Figure 5, which illustrates a longitudinal portion of the web, by arrow A.
  • Sheet 10 cutting comprises a first, longitudinal cutting step, carried out using a rotary cutter part 13 which presses against a countering device in the form of a roller 15, as illustrated in Figure 4.
  • the cutter part has a cylindrical support drum or shaft 13' on which the cutter blades are mounted.
  • the rotary cutter part operates upon the continuous web, fed along a straight path, forming a peripheral profile which, for each longitudinal portion defining a sheet, has a substantially linear first front section 15'c, 15'd forming the outer edge of the lid tab and set at an angle to the longitudinal axis M so that, starting from the front zone 15a of the sheet, there is a transversal widening, that is to say, it is angled away from the longitudinal axis M of the sheet as far as a maximum width zone, and a second rear section 15"c, 15"d connected to the first section at the maximum width zone of the sheet 10, extending towards the back edge 15b, substantially linear and set at an angle to the longitudinal axis M which is opposite to the angle of the first section 15'c, 15'd, creating a transversal narrowing of the sheet.
  • longitudinal cutting also provides the third section with a large angle 15'''c, 15'''d which connects the rear end of the second section 15"c, 15"d to the maximum narrowing zone relative to the back zone of the sheet, coinciding with the front zone of the next sheet.
  • the longitudinal cutting step provides lateral edges of the web which are shaped according to a succession of shaped lateral edges 15c, 15d, designed to form the sheets 10.
  • Cutting of the sheets from the web 11 is completed in a second step of transversally cutting the web 11, in which the front edge 15a and back edge 15b of the sheets 10 are formed.
  • the transversal cutting step is carried out in a second zone, not illustrated in the accompanying drawings, located downstream of the first zone where the web 11 is cut longitudinally.
  • the web longitudinal cutting step forms at least one first and one second separate web 11a, 11b, each for making a plurality of sheets 10.
  • a single web, fed continuously can be used to obtain a first and a second secondary web, which can be fed, after synchronisation if necessary, that is to say, after being positioned with the portions forming the sheets perfectly coinciding in the transversal direction, towards corresponding first and second packaging lines.
  • the position and shape of the lateral edges of the individual webs 11a, 11b is such that it reduces offcuts and wasted material.
  • the widened portions of the sheets of a row of sheets (11a) are positioned at the narrowest portions of the sheets in the other row of sheets (11b).
  • the letter S indicates the offcut zones of the web 11, obtained as a result of the longitudinal cutting.
  • the cutter part has cutter means 17, 19, 21 which have a circular cutting profile extending from the drum 13' with a transversal direction suitable for making the lateral edges 15c, 15d of the sheets 10.
  • the cutter part 13 has a first and a second lateral circular cutter element 17, 19 and an intermediate circular cutter element 21 for separating the two rows of sheets 10, substantially equidistant from the circular cutters in a transversal direction.
  • the profile of the lateral circular cutters 17, 19 has a first portion 17', 19' extending transversally so as to form the corresponding first angled front section 15'c, 15'd of the sheet 10 and a second portion 17", 19" extending transversally with inversion in the direction of downstream transversal extension, according to the direction of rotation of the cutter part, of the first portion, to define the corresponding second angled rear section 15"c, 15"d of the corresponding lateral edge of the sheet 10.
  • the profile of the intermediate cutter 21 has a main cutter part which has a first portion 21a extending transversally to form the first angled front section 15'd of a sheet in a first plurality of sheets and a second portion 21b extending transversally in the opposite direction to the first portion 21a, forming the second angled rear section 15"d of a sheet 10 in the first plurality of sheets.
  • the profile of the intermediate cutter 21 also has secondary cutter means, in the form of a third portion 21c extending downstream, in accordance with the direction of rotation of the cutter part, from the second portion 21b extending transversally to form the short third angled rear section 15"'d which connects the rear section 15"d to the zone which forms the transversal back edge 15b of the first plurality 11a of sheets 10.
  • a fourth portion 21d has a first section 21'd extending from the second portion 21b to form an end of the first front section 21a of the second plurality 11b of sheets 10, and a fifth portion 21e extends from the second portion 21b to the intermediate point of the first portion 21a, forming the end of the first front section 21a of the second plurality 11b of sheets 10.
  • the fourth portion 21d also has a second section 21"d which extends from the first section 21d at an angle opposite to the angle of the first section 21'd, forming the short third angled rear section 15"'c, 15"'d which connects the rear section 15"c, 15"d to the transversal back edge 15b of the second plurality 11b of sheets 10.
  • each of the cutters 17, 19, 21 have the shape of a rounded edge at the zones where the transversal direction of the cutter profile is inverted. This facilitates the production and, in particular, the grinding of the cutter blade.
  • the rounded edge is also advantageous in the zone forming the back and front section of two successive sheets, that is to say, a zone with limited transversal extension.
  • the fact that sharp edges are not made prevents the formation of points which could be the starting points of fractures and generate tears in the web with the consequent disadvantages.
  • the continuous web 11 for the lower, tray-shaped portion 12 is a sheet of aluminium foil or a heat-sealable plastic film.
  • the upper lid 31 is obtained from a different reel of the same type of material as that used for the sheet with which the lower, tray-shaped portion is made.
  • the webs of material for making the tray-shaped body and the lid may consist of heat-sealable material, with the aim of obtaining seals at the zones where there is reciprocal contact, completely sealing the wrapper if necessary.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Packages (AREA)
  • Dairy Products (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP01830412A 2000-06-26 2001-06-20 Verfahren zum Schneiden eines Bogens zur Herstellung von Verpackungshüllen für pastöse Produkte Expired - Lifetime EP1166980B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO000370 2000-06-26
IT2000BO000370A IT1321299B1 (it) 2000-06-26 2000-06-26 Procedimento per il taglio di foglietti piani per la realizzazione diinvolucri di confezionamento di un prodotto pastoso.

Publications (3)

Publication Number Publication Date
EP1166980A2 true EP1166980A2 (de) 2002-01-02
EP1166980A3 EP1166980A3 (de) 2003-10-08
EP1166980B1 EP1166980B1 (de) 2006-10-25

Family

ID=11438562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01830412A Expired - Lifetime EP1166980B1 (de) 2000-06-26 2001-06-20 Verfahren zum Schneiden eines Bogens zur Herstellung von Verpackungshüllen für pastöse Produkte

Country Status (4)

Country Link
EP (1) EP1166980B1 (de)
AT (1) ATE343459T1 (de)
DE (1) DE60124033D1 (de)
IT (1) IT1321299B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003091111A1 (en) * 2002-04-24 2003-11-06 Corazza S.P.A. Device for extracting waste material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759542A (en) * 1953-01-22 1956-08-21 Sarl Les Ateliers De Const Mec Apparatus for cutting a moving broad strip longitudinally and obliquely
US3248987A (en) * 1959-07-08 1966-05-03 Gillette France S A Rotary cutter
DE3233670A1 (de) * 1982-09-10 1984-03-15 Maizena Gmbh, 2000 Hamburg Verfahren zum verpacken eines hochviskosen, sich verfestigenden fuellgutes und behaelter
US4801075A (en) * 1986-04-16 1989-01-31 Fromageries Bel Completely openable packing wrapper in particular for pasty food products

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759542A (en) * 1953-01-22 1956-08-21 Sarl Les Ateliers De Const Mec Apparatus for cutting a moving broad strip longitudinally and obliquely
US3248987A (en) * 1959-07-08 1966-05-03 Gillette France S A Rotary cutter
DE3233670A1 (de) * 1982-09-10 1984-03-15 Maizena Gmbh, 2000 Hamburg Verfahren zum verpacken eines hochviskosen, sich verfestigenden fuellgutes und behaelter
US4801075A (en) * 1986-04-16 1989-01-31 Fromageries Bel Completely openable packing wrapper in particular for pasty food products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003091111A1 (en) * 2002-04-24 2003-11-06 Corazza S.P.A. Device for extracting waste material

Also Published As

Publication number Publication date
DE60124033D1 (de) 2006-12-07
ATE343459T1 (de) 2006-11-15
EP1166980B1 (de) 2006-10-25
ITBO20000370A1 (it) 2001-12-26
ITBO20000370A0 (it) 2000-06-26
EP1166980A3 (de) 2003-10-08
IT1321299B1 (it) 2004-01-08

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