EP4201613B1 - Werkzeuge zur bildung einer trennlinie in einem paket aus lebensmitteltöpfen - Google Patents

Werkzeuge zur bildung einer trennlinie in einem paket aus lebensmitteltöpfen

Info

Publication number
EP4201613B1
EP4201613B1 EP22213804.2A EP22213804A EP4201613B1 EP 4201613 B1 EP4201613 B1 EP 4201613B1 EP 22213804 A EP22213804 A EP 22213804A EP 4201613 B1 EP4201613 B1 EP 4201613B1
Authority
EP
European Patent Office
Prior art keywords
knife
point
counter
transverse axis
equipment
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.)
Active
Application number
EP22213804.2A
Other languages
English (en)
French (fr)
Other versions
EP4201613A1 (de
EP4201613C0 (de
Inventor
Dominique Cossais
Christian Jacquemin
Jérôme Lemoine
Hervé DELAUNAY
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.)
Synerlink SA
Original Assignee
Synerlink SA
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 Synerlink SA filed Critical Synerlink SA
Publication of EP4201613A1 publication Critical patent/EP4201613A1/de
Application granted granted Critical
Publication of EP4201613B1 publication Critical patent/EP4201613B1/de
Publication of EP4201613C0 publication Critical patent/EP4201613C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B26D1/085—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • B26D3/085—On sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/001—Packaging other articles presenting special problems of foodstuffs, combined with their conservation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/32—Cooling, or cooling and pressing, package closures after heat-sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/007—Perforating strips of completed packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0201—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together side-by-side
    • B65D21/0206—Separate rigid or semi-rigid trays or cups joined together, e.g. separate trays connected by single foil closure or crimped together
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section

Definitions

  • the present disclosure relates to the field of equipment for separating packs of food product jars and forming pre-cut lines in such packs of food product jars.
  • the present disclosure relates more specifically to tools of equipment for separating packs of food product and forming pre-cut lines.
  • Food products such as dairy, liquid, creamy, pasty or foamy products in batches or packs are typically contained in a multi-housing container obtained by forming plastic material. After forming, the housings are filled with the food product and sealed with a lid. Subsequently, a groove or pre-cut is made to incise the lid and the plastic material to a certain depth, allowing separation by breaking the pack into a plurality of pots. Depending on the need, in certain areas, a complete cut can be made, for example to separate the packs.
  • PET Polyethylene Terephthalate
  • the document EP3766799 describes equipment for forming a pre-cut in a pack of food product pots comprising a first cutting tool configured to make a pre-cut groove from the top of the pack and a second cutting tool configured to make a pre-cut groove from the bottom of the pack.
  • This equipment effectively makes it possible to facilitate the separation by folding and breaking of two food product pots for a range of plastics including in particular PET.
  • a knife for equipment for forming a pre-cut in a pack of food product pots, said pre-cut facilitating separation by breaking along a separation line between two food product pots, the knife comprising a cutting portion configured to make a pre-cut groove and/or a total cut along the separation line, said cutting portion extending along a first longitudinal axis, such that, seen in section perpendicular to the longitudinal axis, the cutting portion extends on either side of a transverse axis and the cutting portion comprises: on the one hand of the transverse axis (A): - a first portion extending between a first point forming the end of the cutting portion and a second point, the straight line connecting the first and second points forming with the transverse axis a first angle of between 20° and 40; - a second portion extending between the second point and a third point, the straight line connecting the second and third points forming with the transverse axis a second angle of between 15° and 25°; and on the other hand from the transverse
  • Such a knife shape allows sufficient force to be applied to the packs of pots to push the plastic against a counterblade of the equipment to form a pre-cut.
  • the pre-cut grooves are suitable for separating the pots by breaking along the separation lines and are obtained in a repeatable manner.
  • such a knife shape limits the bending of the knife when a groove is made. The risk of damage to the knife, and in particular the risk of the knife coming into contact with the counterblade, is reduced.
  • the first portion may extend over a distance, measured along the direction of the transverse axis, between 0.02 mm and 0.2 mm.
  • the first portion contributes to the mechanical strength of the knife when the knife attacks the plastic.
  • the third portion may extend over a distance, measured along the direction of the transverse axis, between 0.2 mm and 0.8 mm.
  • the third portion forms a flat face of the knife, contributing to the satisfactory cutting of plastic.
  • the third portion may face a counter-blade of the equipment, so that the depth of the grooves made can be increased until a total cut is obtained (i.e. crossing the entire thickness of the pots) without the knife and the counter-blade meeting.
  • a distance between the first point and the fifth point, measured along the direction of the transverse axis, can be between 1.4 mm and 2 mm.
  • the height of the cutting part is then suitable for making pre-cut grooves and total cuts on a range of pot thicknesses.
  • the knife may further comprise a connecting portion extending from the cutting portion to a body of the knife, the connecting portion extending symmetrically on either side of the transverse axis from the third and fifth points at an opening angle of between 100° and 140°.
  • the connecting portion makes it possible to stiffen the knife and thus reduce the risk of bending.
  • the knife may further comprise a cylindrical portion extending in the direction of the transverse axis.
  • the cylindrical portion facilitates mounting of the knife in the equipment.
  • the cylindrical portion may be identical regardless of the profile and shape of the cutting part, so that different knives may be mounted in the same equipment.
  • a counter-blade for equipment for forming a pre-cut in a pack of food product pots, said pre-cut facilitating separation by breaking along a separation line between two food product pots, the counter-blade comprising an active part configured to make a pre-cut groove and/or a total cut along the separation line, said counter-blade extending along a second longitudinal axis such that, seen in section perpendicular to the second longitudinal axis, the active part comprises: - an edge defining a flat face of the active part; - a first segment extending between a first point forming the end of the active part and a second point, the straight line connecting the first and second points forming with the edge a first angle of between 20° and 40°; - a second segment extending from the second point to a third point, the straight line connecting the second and third points forming with the edge a second angle of between 15° and 25°.
  • Such a counterblade shape ensures sufficient penetration of the plastic when force is applied to the pots by a knife of the equipment to form a pre-cut.
  • the pre-cut grooves are suitable for separating the pots by breaking along the separation lines and are obtained in a repeatable manner.
  • such a counterblade shape limits the bending of the counterblade when a groove is made. The risk of damage, and in particular the risk of the counterblade coming into contact with the knife, is reduced.
  • the first segment can extend over a distance, measured along the direction of the edge, between 0.02 mm and 0.1 mm.
  • the first segment contributes to the mechanical strength of the counterblade when the counterblade attacks the plastic.
  • the edge may further comprise a body of substantially rectangular section, the second segment being connected to the body by a clearance extending from the third point.
  • the counterblade is sufficiently rigid to withstand the forces applied to the counterblade when a groove or a full cut is made.
  • equipment for forming a pre-cut in a pack of food product pots said pre-cut facilitating separation by breaking along a separation line between two food product pots, the equipment comprising: - at least one knife, and - at least one counter-blade, the flat face of the counter-blade facing the third portion of the knife.
  • Such equipment ensures that the knife forces the pots against the counterblade to ensure a satisfactory pre-cut is achieved in a repeatable manner.
  • the shape of the knife and counterblade limits their flexing. The risk of damage to the knife and counterblade, and in particular the risk of the knife coming into contact with the counterblade, is reduced.
  • the distance between the knife and the counterblade can be between 0.003 mm and 0.1 mm. This distance, also called undercut, increases the height of the grooves made in the plastic to achieve a full cut. Undercutting prevents mechanical contact between the knife and the counterblade during a full cut.
  • the equipment may include an upper support plate receiving the knife and a lower support plate receiving the counterblade, the pack of food product pots being configured to be received between the upper support plate and the lower support plate, the upper support plate and the lower support plate having a relative displacement perpendicular to the plane defined by the upper surface of the food product pots.
  • the pre-cutting equipment is then formed as a press, and the penetration depths of the knives and counterblades into the plastic material of the pack can be controlled. Control of penetration depths can be at least partly achieved through the spacing and relative movement between the lower and upper support plates.
  • the Figures 1 and 2 represent a pack of 10 jars of 12 food products.
  • the food product can be a classic food or a functional food.
  • the food product can be any type of dairy food.
  • the product can be liquid, creamy, pasty or foamy.
  • 'pack' should be understood as a set forming a sales batch, this set comprising several individual consumption units (each unit being called a 'pot' or 'cup' here). Each individual consumption unit forms a portion of food for an individual who, at the end of consumption, throws the empty pot, i.e. the primary packaging, into a bin or recycling system.
  • a pack 10 of six pots 12 is shown.
  • the number of pots 12 can be any, that is to say that the pack 10 can include 2 pots, 4 pots, 6 pots, 8 pots, or even 9 pots, 10 pots, and even 12 pots.
  • a reference plane PR is defined at the level of the upper surface of the pots 12, the reference plane PR comprising a longitudinal direction denoted L and a transverse direction denoted T.
  • a vertical direction denoted Z is also defined, substantially normal to the reference plane PR.
  • the pots 12 are formed from a multi-housing container.
  • the multi-housing container may be formed from plastic.
  • the material used to form the multi-housing container may be polyethylene terephthalate (PET). It should be noted that either translucent PET or opaque PET may be used. Alternatively, the material used to form the multi-housing container may be polypropylene (PP). The plastic may be blown or injected into a mold to thereby obtain the multi-housing container.
  • the upper support plate 22 receives one or more knives 26.
  • the knives 26 extend above the separation lines 16.
  • the knives 26 are adapted to form a pre-cutting groove from above along the separation line 16.
  • the lower support plate 24 receives at least one counter-blade 28.
  • the counter-blades 28 extend below the separation lines 16.
  • the counter-blades 28 are adapted to form a pre-cutting groove from below along the separation line 16.
  • the number of knives 26 and counter-blades 28 can correspond to the number of separation lines 16 to be produced, so that a single movement between the upper support plate and the lower support plate 22, 24 makes it possible to form all the separation lines 16 in a pack 10. It is also possible to provide enough knives 26 and counter-blades 28 to process several packs 10 at the same time. The productivity of the equipment 20 is increased.
  • the penetration depths of the knives 26 and the counter-blades 28 in the plastic material of the pack 10 are controlled.
  • the control of the penetration depths can be ensured in part or in full thanks to the spacing and the relative movement between the lower and upper support plates 22, 24.
  • the spacing between the two support plates 22, 24 is fixed in the working position at the dimension e7, that is to say the sum of the thicknesses e1 of the cover sheet 14 and the thickness e2 of the plastic material at the junction between the pots 12.
  • the height D3 of the groove made by the knife 26 is between 10% and 80% of the thickness e2 of the plastic material, preferably between 20% and 60% of the thickness e2 of the plastic material.
  • the knife 26 also makes it possible to groove the entire thickness e1 of the lidding sheet 14.
  • the height D4 of the groove made by the counter-blade 28 is between 25% and 50% of the thickness e2 of the plastic material, preferably between 30% and 40%. In this case, the height D3 of the groove made by the knife 26 is greater than the height D4 of the groove made by the counter-blade 28. Such grooves ensure good separation of the pots 12 along the pre-cut lines 16.
  • a distance D6 separating the knife 26 and the counter-blade 28, measured in the direction normal to the vertical axis Z, is between 0.003 and 0.1 mm.
  • a distance D6 also called a pinching distance, makes it possible to increase the height of the grooves made in the plastic to perform a total cut, i.e. to cross the entire side e7 (the sum of the thicknesses e1 of the lidding sheet 14 and the thickness e2 of the plastic material at the junction between the pots 12).
  • the pinching distance makes it possible to avoid mechanical contact between the knife 26 and the counter-blade 28 during a total cut.
  • the total cut can, for example, make it possible to perform a separation between several packs 10 of pots 12 of food product.
  • the cutting part 32 extends on either side of a transverse axis A of the knife 26, from a free end of the cutting part 32 towards a connecting part 44, connecting the cutting part 32 to the body 30.
  • the cutting part 32 defines a first portion 36, a second portion 38 and a third portion 40.
  • the first portion 36 extends from a first point P1 forming the end of the cutting part 32 to a second point P2.
  • a straight line connecting the first and second points P1, P2 forms with the transverse axis A a first angle A1 of between 20° and 40°.
  • the first portion 36 extends over a distance L1, measured in the direction of the transverse axis A, of between 0.02 mm and 0.2 mm.
  • the first portion 36 contributes to the mechanical strength of the knife 26 at the time of attack of the plastic by the knife 26.
  • the second portion 38 extends from the second point P2 to a third point P3.
  • a straight line connecting the second and third points P2, P3 forms with the transverse axis A a second angle A2 of between 15° and 25°.
  • the second angle A2 makes it possible to reduce the penetration forces perceived by the cutting part 32.
  • the second angle A2 helps to exert a force on the lower support plate 24 to push the plastic against the counter-blade 28. The grooves from below, made by the counter-blade 28, are then improved.
  • the cutting part 32 On the other side of the transverse axis A, that is to say on the side intended to face the counter-blade 28 when the knife 26 is received in the upper support plate 22, the cutting part 32 comprises a third portion 40 and a fourth portion 42.
  • the third portion 40 extends from the first point P1 forming the end of the knife 26 and a fourth point P4 coinciding with the transverse axis A.
  • the third portion 40 forms a flat face of the cutting part 32.
  • the third portion 40 extends over a distance L2, measured in the direction of the transverse axis A, of between 0.2 and 0.8 mm.
  • the fourth portion 42 extends from the fourth point P4 to a fifth point P5.
  • a straight line connecting the fourth and fifth points P4, P5 forms with the transverse axis A a third angle A3 of between 15° and 25°.
  • the fourth portion 42 makes it possible to balance the cutting force on either side of the transverse axis A, so as to reduce the bending caused by the second angle A2 of the second portion 36.
  • the fourth portion 42 also helps to push the plastic onto the counter-blade 28, to improve the groove from below, in particular by ensuring that the counter-blade 28 penetrates the plastic over the incise height D4 from below.
  • the third and fifth points P3, P5 are symmetrical with respect to the transverse axis A.
  • the connecting portion 44 extends on either side of the transverse axis A from the points P3 and P5 to connect the cutting portion 32 to the body 30 of the knife 26.
  • a distance L3 between the first point P1 forming the end of the knife 26 and the third and fifth points P3, P5, measured in the direction of the transverse axis A, is between 1.4 and 2 mm. In other words, the height of the cutting portion 32 is between 1.4 and 2 mm.
  • the connecting part 44 extends symmetrically on either side of the transverse axis A at an opening angle A4 of between 100° and 140°.
  • the opening angle A4 makes it possible to stiffen the knife 26 to prevent bending of the knife 26.
  • the body 30 extends along the longitudinal axis X.
  • the body 30 has a polygonal section, to give the knife 26 sufficient rigidity to withstand the forces applied to the knife 26 when a pre-cut is carried out.
  • the section of the body 30 is further adapted to be received in a housing or slide of the upper plate 22, in particular to ensure the correct orientation of the knife 26 in the upper plate 22.
  • the cutting part 32 may project from the housing or slide depending on the height of the groove to be made.
  • the cylindrical portion 34 extends from the body 30 in the direction of the transverse axis A.
  • the cylindrical portion 34 extends on one side of the body 30 opposite the cutting part 32.
  • the axis of revolution of the cylindrical portion 34 corresponds to the transverse axis A.
  • the cylindrical portion 34 can be received in a cylindrical housing formed in the upper plate 22 of the equipment 20.
  • the cylindrical portion 34 can be identical regardless of the profile and shape of the cutting part 32, so that different knives 26 can be housed in the same cylindrical housing of the upper plate 22.
  • a threaded hole 50 is here formed in the cylindrical portion 34.
  • the threaded hole 50 extends along the axis of revolution A of the cylindrical portion 34, from an upper face of the cylindrical portion 34 towards the cutting part 32.
  • the threaded hole 50 is adapted to receive a retaining screw of the equipment 20.
  • the mounting of the cutting tool 30 by the retaining screw allows precise adjustment of the position of the knife 26 in the upper plate 22. Indeed, it is possible to finely adjust the incision height of the knife 26, by inserting the retaining screw more or less into the threaded hole 50.
  • cylindrical portion 34 here comprises a cylindrical groove 55, with an axis the axis of revolution A of the cylindrical portion 34.
  • the cylindrical groove 55 ensures good propagation of grease around the cylindrical portion 34, to smooth the relative movement between the cutting tool 30 and the upper support plate 22.
  • a counterblade 28 is described below.
  • the counterblade 28 is here received in the lower support plate 24 of the equipment 20 to make a pre-cutting groove from below.
  • the force applied by the knife 26 forces the plastic onto the counterblade 28. Thanks to the shape of the cutting part 32 of the knife 26 described below, the plastic is pushed sufficiently onto the counterblade 28 to make a satisfactory and repeatable groove from below.
  • the counter blade 28 extends along a second longitudinal axis Y. When the counter blade 28 is received in the lower support plate 24, the counter blade 28 extends along a parting line 16.
  • the counter-blade 28 comprises an active part 54 intended to incise the plastic material, and a body 52 intended to be received in the lower plate 24.
  • the active part 54 comprises an edge 56.
  • the edge forms a flat face of the active part 54.
  • the flat face is intended to face the knife 26 when the counter-blade 28 is received in the lower support plate 24.
  • the active part 54 also defines a first segment 58.
  • the first segment 58 extends from a first point P11 of the active part 54 forming the free end of the active part 54 and a second point P12.
  • a straight line connecting the first and second points P11, P12 form, with the edge 56, a first angle A11 of between 20° and 40°.
  • the first segment 58 extends over a distance L11, measured in the direction of the edge 56, of between 0.02 and 0.2 mm.
  • the first segment 58 contributes to the mechanical strength of the counter-blade 28 at the time of attack of the plastic by the counter-blade 28.
  • the active part 54 further defines a second segment 60.
  • the second segment 60 extends from the second point P12 to a third point P13, forming with the edge 56 a second angle A12 of between 15° and 25°.
  • the second segment 60 contributes to reducing the penetration forces perceived by the active part 54, and therefore to reducing the bending.
  • a clearance 62 extends from the third point P13 to connect the second segment 60 to the body 52 of the counter-blade 28.
  • the edge 56 extends in continuity with one side of the body 52.
  • the body 52 here has a substantially rectangular section.
  • the body 52 can be received in a housing or slide of the lower plate 24 to ensure the correct orientation of the counter-blade 28 in the lower plate 24.
  • the active part 54 can project from the housing or slide depending on the height of the groove to be made.
  • the lower support plate 24 could receive one or more knives 26, and the upper support plate 22 could receive one or more counterblades 28. This embodiment appears interesting when the lower support plate 24 is movable in the direction of the vertical axis Z.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Food-Manufacturing Devices (AREA)
  • Packages (AREA)
  • Knives (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Claims (14)

  1. Messer (26) für eine Vorrichtung (20) zum Formen eines Vorschnitts an einer Packung (10) von Behältern (12) für Lebensmittel, wobei der Vorzuschnitt das Trennen durch Brechen entlang einer Trennlinie (16) zwischen zwei Behältern (12) für Lebensmittel erleichtert, wobei das Messer (26) einen Schneideabschnitt (32) umfasst, der dazu ausgebildet ist, eine Vorschnittnut und/oder einen Vollschnitt entlang der Trennlinie (16) auszuführen, wobei sich der Schneideabschnitt (32) entlang einer ersten Längsachse (X) erstreckt, gesehen im Querschnitt senkrecht zur Längsachse (X),
    dadurch gekennzeichnet, dass
    sich der Schneideabschnitt (32) beiderseits einer Querachse (A) erstreckt und dass der Schneideabschnitt (32) umfasst:
    einerseits zur Querachse (A):
    - einen ersten Abschnitt (36), der sich zwischen einem ersten Punkt (P1), der das Ende des Schneideabschnitts (32) bildet, und einem zweiten Punkt (P2) erstreckt, wobei die Verbindungsgerade zwischen dem ersten und dem zweiten Punkt (P1, P2) mit der Querachse (A) einen ersten Winkel (A 1) zwischen 20° und 40° bildet;
    - einen zweiten Abschnitt (38), der sich zwischen dem zweiten Punkt (P2) und einem dritten Punkt (P3) erstreckt, wobei die Gerade, die den zweiten und den dritten Punkt (P2, P3) verbindet, mit der Querachse (A) einen zweiten Winkel (A2) zwischen 15° und 25° bildet;
    und andererseits zur Querachse (A):
    - einen dritten Abschnitt (40), der sich zwischen dem ersten Punkt (P1) und einem vierten Punkt (P4) erstreckt, wobei der vierte Punkt (P4) mit der Querachse (A) zusammenfällt,
    - einen vierten Abschnitt (42), der sich vom vierten Punkt (P4) zu einem fünften Punkt (P5) erstreckt, wobei der fünfte Punkt (P5) symmetrisch zum dritten Punkt (P3) in Bezug auf die Querachse (A) ist, wobei die Gerade, die den vierten und den fünften Punkt (P4, P5) verbindet, mit der Querachse (A) einen dritten Winkel (A3) zwischen 15° und 25° bildet.
  2. Messer (26) nach Anspruch 1, wobei sich der erste Abschnitt (36) über eine in Richtung der Querachse (A) gemessene Entfernung (L1) zwischen 0,02 mm und 0,2 mm erstreckt.
  3. Messer (26) nach Anspruch 1 oder 2, wobei sich der dritte Abschnitt (40) über eine in Richtung der Querachse (A) gemessene Entfernung (L2) zwischen 0,2 mm und 0,8 mm erstreckt.
  4. Messer (26) nach einem der vorhergehenden Ansprüche, wobei ein Abstand (L3) zwischen dem ersten Punkt (P1) und dem fünften Punkt (P5), gemessen in Richtung der Querachse (A), zwischen 1,4 mm und 2 mm beträgt.
  5. Messer (26) nach einem der vorhergehenden Ansprüche, welches ferner einen Verbindungsabschnitt (44) umfasst, der sich vom Schneideabschnitt (32) zu einem Körper (30) des Messers (26) erstreckt, wobei sich der Verbindungsabschnitt (44) symmetrisch zu beiden Seiten der Querachse (A) vom dritten und fünften Punkt (P3, P5) in einem Öffnungswinkel (A4) zwischen 100° und 140° erstreckt.
  6. Messer (26) nach einem der vorhergehend en Ansprüche, welches ferner einen zylindrischen Abschnitt (34) umfasst, der sich in Richtung der Querachse (A) erstreckt.
  7. Gegenklinge (28) für eine Vorrichtung zum Formen eines Vorschnitts an einer Packung (10) von Behältern (12) für Lebensmittel, wobei die Gegenklinge (28) dazu ausgelegt ist, mit einem Messer (26) nach einem der Ansprüche 1 bis 6 zusammenzuwirken, wobei der Vorzuschnitt ein Trennen durch Brechen entlang einer Trennlinie (16) zwischen zwei Lebensmittelbehältern (12) erleichtert, wobei die Gegenklinge (28) einen aktiven Abschnitt (54) umfasst, der dazu ausgebildet ist, einen Vorzuschnitt oder einen Vollschnitt entlang der Trennlinie (16) auszuführen, wobei sich die Gegenklinge (28) entlang einer zweiten Längsachse (Y) erstreckt, gesehen im Schnitt senkrecht zur zweiten Längsachse (Y), dadurch gekennzeichnet, dass der aktive Abschnitt (54) umfasst:
    - einen Grat (56), der eine ebene Fläche des aktiven Abschnitts (54) definiert;
    - ein erstes Segment (58), das sich zwischen einem ersten Punkt (P11), der das Ende des aktiven Abschnitts (54) bildet, und einem zweiten Punkt (P12) erstreckt, wobei die Gerade, die den ersten und den zweiten Punkt verbindet (P11, P12) mit dem Grat (56) einen ersten Winkel (A11) zwischen 20° und 40° bildet;
    - ein zweites Segment (60), das sich vom zweiten Punkt (P12) zu einem dritten Punkt (P13) erstreckt, wobei die Gerade, die den zweiten und den dritten Punkt (P12, P13)verbindet, mit dem Grat (56) einen zweiten Winkel (A12) zwischen 15° und 25° bildet.
  8. Gegenklinge (28) nach Anspruch 7, wobei sich das erste Segment (58) über eine in Richtung des Grats (56) gemessene Länge (L11) zwischen 0,02 mm und 0,1 mm erstreckt.
  9. Gegenklinge (28) nach einem der Ansprüche 7 oder 8, wobei der Grat (56) sich über eine Länge (L12) zwischen 0,02 mm und 0,1 mm erstreckt.
  10. Gegenklinge (28) nach einem der Ansprüche 7 bis 9, welche ferner einen Körper (52) mit im Wesentlichen rechteckigem Querschnitt umfasst, wobei das zweite Segment (60) über einen Aussparung (62), die sich vom dritten Punkt (P13) aus erstreckt, mit dem Körper (52) verbunden ist.
  11. Vorrichtung (20) zum Formen eines Vorschnitts an einer Packung (10) von Behältern (12) für Lebensmittel, wobei der Vorschnitt ein Trennen durch Brechen entlang einer Trennlinie (16) zwischen zwei Behältern (12) für Lebensmittel erleichtert, wobei die Vorrichtung (20) umfasst:
    - wenigstens ein Messer (26) nach einem der Ansprüche 1 bis 6 und
    - wenigstens eine Gegenklinge (28) nach einem der Ansprüche 7 bis 10, wobei die ebene Fläche der Gegenklinge (28) dem dritten Abschnitt (40) des Messers (26) zugewandt ist.
  12. Vorrichtung (20) nach Anspruch 11, wobei ein Abstand (D6) zwischen dem Messer (26) und der Gegenklinge (28) zwischen 0,003 mm und 0,1 mm beträgt.
  13. Vorrichtung (20) nach einem der Ansprüche 11 oder 12, mit einer oberen Halteplatte (22), die das Messer (26) aufnimmt, und einer unteren Halteplatte (24), die die Gegenklinge (28) aufnimmt, wobei die Packung (10) mit Lebensmittelbehältern (12) dazu ausgebildet ist, zwischen der oberen Halteplatte (22) und der unteren Halteplatte (24) aufgenommen zu werden, wobei die obere Halteplatte (22) und die untere Halteplatte (24) eine relative Verschiebung senkrecht zu der durch die Oberseite der Lebensmittelbehälter (12) definierten Ebene (PR) aufweisen.
  14. Vorrichtung zum Vorbereiten von Packungen (10) mit Behältern (12) für Lebensmittel, umfassend:
    - eine erste Vorrichtung, die sowohl zum Versiegeln eines Deckels (14) als auch zum lokalen Kühlen der Verbindungsbereiche der Behälter (12) von unten ausgelegt ist, und, stromabwärts von der ersten Vorrichtung angeordnet ist,
    - eine zweite Vorrichtung (20) zum Formen eines Vorstanzabschnitts, wobei die zweite Vorrichtung (20) einem der Ansprüche 11 bis 13 entspricht.
EP22213804.2A 2021-12-20 2022-12-15 Werkzeuge zur bildung einer trennlinie in einem paket aus lebensmitteltöpfen Active EP4201613B1 (de)

Applications Claiming Priority (1)

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FR2114046A FR3130671B1 (fr) 2021-12-20 2021-12-20 Outils pour former une ligne de separation dans un pack de pots de produit alimentaire

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AR (1) AR128037A1 (de)
CA (1) CA3185466A1 (de)
CL (1) CL2022003644A1 (de)
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US6070507A (en) * 1997-03-03 2000-06-06 Abbott Laboratories Method for punching a sealed package from first and second webs
US7051911B2 (en) * 2001-12-21 2006-05-30 Eastman Kodak Company Apparatus and method for cutting sheet materials
GB0215862D0 (en) * 2002-07-10 2002-08-14 Ucb Sa Packaging film
US7455004B2 (en) * 2003-03-06 2008-11-25 Alcoa Inc. Apparatus and method for cutting sheet material
JP2008183094A (ja) 2007-01-29 2008-08-14 Kai R & D Center Co Ltd カッターの刃
DE202007013402U1 (de) * 2007-09-25 2007-12-06 Böhler-Uddeholm Precision Strip GmbH & Co. KG Schneidlinie
FR3098799B1 (fr) 2019-07-17 2021-06-18 Synerlink Equipement et méthode pour former une prédécoupe dans un pack de pots de produit alimentaire
WO2021062295A1 (en) * 2019-09-27 2021-04-01 Mound Laser & Photonics Center, Inc. Chemically sharpening blades

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EP4201613A1 (de) 2023-06-28
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ES3041784T3 (en) 2025-11-14
FR3130671A1 (fr) 2023-06-23
CA3185466A1 (fr) 2023-06-20
JP2023091774A (ja) 2023-06-30
KR20230094168A (ko) 2023-06-27
FR3130671B1 (fr) 2025-01-03
EP4201613C0 (de) 2025-08-13
AR128037A1 (es) 2024-03-20
CL2022003644A1 (es) 2023-09-29
US12240646B2 (en) 2025-03-04
MX2022016571A (es) 2023-06-21

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