EP0525802B1 - Verfahren und Vorrichtung zum Positionieren von Trennblättern zwischen Produktlagen - Google Patents

Verfahren und Vorrichtung zum Positionieren von Trennblättern zwischen Produktlagen Download PDF

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Publication number
EP0525802B1
EP0525802B1 EP92113116A EP92113116A EP0525802B1 EP 0525802 B1 EP0525802 B1 EP 0525802B1 EP 92113116 A EP92113116 A EP 92113116A EP 92113116 A EP92113116 A EP 92113116A EP 0525802 B1 EP0525802 B1 EP 0525802B1
Authority
EP
European Patent Office
Prior art keywords
separating
product
separating leaves
accordance
leaves
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.)
Expired - Lifetime
Application number
EP92113116A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0525802A1 (de
Inventor
Günther Weber
Horst Heinze
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.)
BIFORCE Anstalt
Original Assignee
BIFORCE Anstalt
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
Priority claimed from DE19914125539 external-priority patent/DE4125539A1/de
Application filed by BIFORCE Anstalt filed Critical BIFORCE Anstalt
Publication of EP0525802A1 publication Critical patent/EP0525802A1/de
Application granted granted Critical
Publication of EP0525802B1 publication Critical patent/EP0525802B1/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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
    • B26D7/325—Means for performing other operations combined with cutting for conveying or stacking cut product stacking the cut product individually separated by separator elements
    • 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
    • B65B25/06—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products
    • B65B25/08—Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products between layers or strips of sheet or web material, e.g. in webs folded to zig-zag form
    • 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
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • B65B61/08—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting using rotary cutters

Definitions

  • the invention relates to a method for positioning separating sheets between individual at least partially superimposed product layers, in particular between individual slices of a food product, in which the separating sheets are held in a shot position against constantly acting acceleration forces, released in a predeterminable sequence and positioned between two product layers.
  • the invention relates to a device for positioning separating sheets between individual at least partially superimposed product layers, in particular between individual slices of a food product with an endless web storage device, a conveyor device guiding the endless web, a cutting device for forming individual separating sheets and an acceleration device.
  • a device for inserting sheets of paper between the individual cheese slices of sliced cheese packages is known.
  • the sheets of paper are placed between the cheese slices falling from the discharge end of a cheese slicer just prior to insertion cut from a paper web and preferably provided with folds running in the transport direction to prevent bending during the insertion process by means of two cooperating folding rollers.
  • a device for inserting sheets of a thin, flexible separating material between successive parts of food products, which are supplied from a supply source, is known, in which the separating material is separated from an endless web and into the area two flaps interacting according to the trap door principle is promoted.
  • a disk of a food product is placed on the separating material by means of a suitable device, whereupon the two flaps fold down like a trap door, whereby the disk of the food product with the separating material underneath onto one below the product stack located in the flaps falls.
  • the object on which the invention is based is to enable a reliable and positionally accurate insertion of separating sheets between individual product layers, in particular a mechanical execution of the insertion process being to be made possible with little economic effort.
  • this object can be achieved in that the separating sheets are shot into at least one axis in the weft direction and are shot into the desired position between two product layers.
  • This object can be achieved by means of a device according to the invention in that the acceleration device Has means for curving the separating sheets to be shot between the individual slices of the food product.
  • separating sheets can advantageously be shot between individual slices of a product in rapid succession at high speed and in a positionally precise manner, which, for example, by means of a cutting device, e.g. a slicer that is cut open.
  • a cutting device e.g. a slicer that is cut open.
  • the acceleration forces are in the form of grinding friction forces, for example by means of rollers or running over rollers Straps applied to the top and bottom of the divider sheets.
  • the release sheets which triggers the acceleration process, can be released, for example, by cutting off the separation sheets from an endless web.
  • both the time of release and the weft path of the separating sheets can be selected or adjusted. In this way it is achieved that the separating sheets can be shot in different positions between the individual product layers.
  • the separator sheets can be aligned with the product layers or positioned laterally or alternately projecting laterally between the product layers.
  • the separating sheets are preferably shot from the area of the slicing device located on the product discharge side between the product layers, the knife drive of the slicing device being located on the product feed side in relation to the knife.
  • the separator sheets can be shot against product layers which have not yet or have not yet been completely cut off from a product. Furthermore, it is also possible to shoot the separating sheets against product layers which have already been cut off from a product and which are just falling onto a storage surface.
  • the separating sheets are preferably passed through an air stream before or after their acceleration.
  • a device for carrying out the method according to the invention described in the subclaims can be positioned in a particularly advantageous manner between the discharge belt of a slicing device and its cutting knife in a free space located on the product discharge side in relation to the cutting knife.
  • the device shown in Fig. 1 has an endless web storage in the form of a carrier roll 1, on which the endless web 2 is wound.
  • the continuous web 2 unwound from the carrier roll 1 runs over a dancer roll arrangement consisting of a stationary roll 3 and two rolls 5 mounted on a swivel arm 4.
  • the swivel arm 4 is rotatably mounted about the axis of the carrier roller 1 and is biased in the direction of arrow A by a spring force.
  • the carrier roll 1 can be braked by means of a short-stroke cylinder 7.
  • bracket 6 which extends perpendicular to the swivel arm 4 and by means of which the movable dancer rolls 5 are supported on both sides.
  • the stationary dancer roll 3 is mounted on both sides in a housing 8, the housing 8 being firmly connected to the axis of the carrier roll 1 via a rigid web 9.
  • the dancer roller arrangement 3, 4, 5 serves as an endless web buffer, with which the starting and braking times of the carrier roller 1 caused by inertia can be compensated.
  • the swivel arm 4 moves in the direction of the arrow B, when the carrier roller 1 is braked in the direction of the arrow A.
  • the process of unwinding the endless web 2 from the carrier roll 1 is effected by a conveyor roller pair 10 which promotes the endless web 2 in clamping engagement.
  • the surface of the pair of conveyor rollers 10 can be made of rubber or a similar material, for example.
  • a cutting device which has an elongated cutting element 11 which extends at least over the separating sheet width and which rotates in the direction of the arrow about an axis lying perpendicular to the conveying direction of the endless web 2 and perpendicular to the plane of the drawing.
  • the cutting edge of the cutting member 11 is in accordance with the principle known from lawnmowers in the imaginary outer surface of a cylinder extending around the axis of rotation of the cutting member 11, the cutting edge intersecting a surface line of the cylinder at least at one point.
  • the rotating cutting member 11 shears over a stationary shear web 12, which makes it possible to cut individual separating sheets from the endless web.
  • the rotating cutting member 11 and the shear web 12 together with a frame 13 form a unit which can be inserted into the housing 8 via a gap 14 and can be exchanged in this way without difficulty.
  • the frame 13 has a wedge-shaped incision, which is supported on a bolt 15 which is fixedly connected to the housing, in order in this way to fix the cutting device in position in the housing 8.
  • the shear web 12 is provided with an adjusting device 16.
  • An acceleration device is connected to the cutting device 11, 12, the distance between the cutting device and the acceleration device being smaller than the separating sheet length.
  • the acceleration device has four guide rollers 17, 18, the peripheral speed of which is above the conveying speed of the conveying rollers 10.
  • Two guide rollers 17, 18 spaced apart from one another in the weft direction are connected to one another by circumferential belts, not shown in FIG. 1.
  • the separating sheets to be accelerated are slidably guided between the belts.
  • the belts continuously exert acceleration forces in the form of grinding frictional forces on the continuous web 2 or the cut separating sheets, these forces acting on the top and bottom of the endless web 2 or the separating sheets.
  • air nozzles (not shown) can be provided, which additionally guide the endless web or the accelerated separating sheets in the areas of the device located behind the conveyor rollers 10.
  • the nozzles causing this air guidance can be arranged both below and above the transport plane of the endless web or the separating sheets.
  • the conveyor device, the cutting device and the acceleration device are combined by one via two contacts 20 powered electric motor 19 driven.
  • a toothed belt 26 is used as the drive means, which runs over the following deflection and drive rollers: A deflection roller 21 arranged above the electric motor 19 between the dancer roller 3 and the conveyor roller 10, via a tension roller 22 arranged between the guide rollers 17 and 18 and biased against a spring force, via two drive rollers driving the two guide rollers 17 and via two driving the two conveyor rollers 10 Drive rollers.
  • the mentioned deflection, tensioning and drive rollers are all located on one side of the housing 8.
  • the axis of the deflection roller 21 extends horizontally through the housing 8 and has an elliptical roller 23 on the side opposite the deflection roller 21, which has an additional toothed belt 28 (see FIG. 8) is coupled to a second elliptical roller 24, which in turn is connected to the axis of the rotating cutting element 11 and drives it.
  • the two elliptical rollers 23 and 24 have a phase shift with the same number of teeth, in order in this way to ensure that the cutting member 11 rotates at a higher speed at the time when a separating sheet is separated from the endless web 2 than during its remaining orbital period. This drive ensures a clean cut and prevents paper jams.
  • the elliptical design of the rollers 23 and 24 means that the rotational speed of the elliptical rollers 23, 24 is reduced immediately after the cutting process, thereby ensuring that the separating sheet to be removed is not caught by the rotating cutting member 11.
  • the described design of the elliptical rollers 23 and 24 also makes it possible to keep the toothed belt 28 rotating around the two rollers constantly taut without the need for an additional tensioning wheel.
  • the rotating cutting member 11 serves to support and guide the section of the endless web following a cut separating sheet.
  • the guide rollers 18 are driven via the belts 27 (see FIG. 6), by means of which they are connected to the guide rollers 17.
  • the conveyor rollers 10 which promote the endless web 2 in clamping engagement, cause the endless web 2 to unwind from the carrier roller 1 when the device is operating the front area of the endless web 2, which causes tensioning of the endless web 2.
  • the area of the endless web 2 located in the acceleration device is not yet accelerated at this point in time, since it is still directly connected to the section of the endless web 2 located in the area of the conveyor rollers 10 and only the rotational speed of the conveyor rollers 10 determines the conveying speed of the entire endless web 2 .
  • the cut cutting sheet can be accelerated in the acceleration device since it is no longer retained as before by its connection to the section of the continuous web 2 located between the conveyor rollers 10 .
  • the cut-off separating sheet is curved in the accelerating device and finally shot in the direction of the arrow from the accelerating device into its desired position.
  • a sensor in the form of a photocell or a capacitive sensor can be arranged in front of the guide rollers 18 and, for example, stops the transport of the endless web when making empty cuts. In this way, separator sheets are only made available when there is actually a need.
  • both different separator sheet lengths and different shot speeds can be set.
  • the endless web can consist of any type of film, e.g. Paper, plastic, metal or in particular aluminum foils.
  • film e.g. Paper, plastic, metal or in particular aluminum foils.
  • the device according to FIG. 1 is preferably controlled by the slicing device, i. H. the slicer specifies when a separator sheet should be shot.
  • the guide rollers 18 of the pair of guide rollers 17, 18 spaced apart from one another in the weft direction are shown in each case according to the section line AB.
  • the guide rollers 17, 18 are via belts, not shown, with those lying in front of the cutting plane Guide rollers 17 connected, the diameter of which is larger than that of the guide rollers 18.
  • the upper and lower guide rollers 18 are offset from one another in such a way that the belts of the upper and lower guide rollers do not touch and a curvature of a separating sheet transported between the belts is brought about.
  • the upper and lower guide rollers 17 are also offset from one another in such a way that the belts of the upper and lower guide rollers do not touch and a curvature of a separating sheet transported between the belts is brought about.
  • This staggered arrangement of the guide rollers 17 and 18 according to FIGS. 2 and 3 thus ensures that a separating sheet is transported or accelerated by the belts running over the guide rollers not in clamping but in sliding engagement, as a result of which acceleration forces constantly acting on the separating sheet in the weft direction in the form of grinding frictional forces.
  • the described sliding engagement between the aforementioned belt and the separating sheet makes it possible for the separating sheet to be introduced into the accelerating device if it has not yet been cut off from the continuous web without the risk of the continuous web breaking off. In this way, the separating sheet is curved in a shot position before it is accelerated.
  • FIG. 4 shows a section through the tensioning roller 22 according to the section line C-D in FIG. 1.
  • the tensioning roller 22 is connected to the housing 8 by means of an arm 25 preloaded by a spring.
  • the task of the tension roller 22 is to tension the toothed belt 26.
  • FIG. 5 shows a partial view from FIG. 1 with the dancer rollers 5 mounted on the swivel arm 4 and a plan view of the dancer rollers 5, which are mounted on both sides by means of a bow-shaped element 6 on the swivel arm 4.
  • FIG. 6 shows a horizontal section through the arrangement according to the invention according to FIG. 1 in a top view.
  • FIG. 6 corresponds to the reference symbols from FIG. 1.
  • the endless web 2 and the toothed belts running over the deflection, tensioning, drive and elliptical rollers are not shown in FIG. 6.
  • the belts 27 running over the guide rollers 17 and 18 are shown schematically in FIG. 6.
  • FIG. 7 shows the drive diagram of the deflection roller 23, the tensioning roller 22, the drive rollers of the guide rollers 17 and the drive rollers of the conveyor rollers 10. This drive diagram has already been explained in the description of FIG. 1. The roles are all on one side of the case 8 arranged. 7 also shows the elliptical rollers 23 and 24 arranged on the other side of the housing.
  • FIG. 8 shows the manner in which the two elliptical rollers 23 and 24 are connected to one another via a toothed belt 28 in order to drive the cutting member 11 in this way. This drive was also already explained in the description of FIG. 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Advancing Webs (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP92113116A 1991-08-01 1992-07-31 Verfahren und Vorrichtung zum Positionieren von Trennblättern zwischen Produktlagen Expired - Lifetime EP0525802B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4125539 1991-08-01
DE19914125539 DE4125539A1 (de) 1991-08-01 1991-08-01 Verfahren zum positionieren von trennblaettern
DE4129536 1991-09-05
DE4129536 1991-09-05

Publications (2)

Publication Number Publication Date
EP0525802A1 EP0525802A1 (de) 1993-02-03
EP0525802B1 true EP0525802B1 (de) 1995-12-20

Family

ID=25906025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113116A Expired - Lifetime EP0525802B1 (de) 1991-08-01 1992-07-31 Verfahren und Vorrichtung zum Positionieren von Trennblättern zwischen Produktlagen

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EP (1) EP0525802B1 (es)
DE (1) DE59204735D1 (es)
ES (1) ES2081001T3 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108657793A (zh) * 2018-05-24 2018-10-16 福建省欧麦鑫自动化科技有限公司 一种全自动快速物料分离装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB718419A (en) * 1950-01-27 1954-11-17 Swift & Co Improvements in or relating to a packaging device and method
US3019578A (en) * 1960-09-30 1962-02-06 Israel B Cohen Interleaving apparatus for packaging bacon slices
US3347176A (en) * 1964-10-22 1967-10-17 Formatic Inc Method and apparatus for making patties
GB1191743A (en) * 1966-08-08 1970-05-13 Hobart Mfg Co Apparatus for Applying Separator Sheets to Food Portions
DE2252605A1 (de) * 1972-10-26 1974-05-02 Hochland Reich Summer & Co Vorrichtung zum einlegen von papierblaettern zwischen die einzelnen kaesescheiben von schnittkaesepackungen

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Publication number Publication date
DE59204735D1 (de) 1996-02-01
ES2081001T3 (es) 1996-02-16
EP0525802A1 (de) 1993-02-03

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