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WO2006027665A1 - Machine pour la fabrication d'emballages pour un produit d'infusion - Google Patents

Machine pour la fabrication d'emballages pour un produit d'infusion Download PDF

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Publication number
WO2006027665A1
WO2006027665A1 PCT/IB2005/002647 IB2005002647W WO2006027665A1 WO 2006027665 A1 WO2006027665 A1 WO 2006027665A1 IB 2005002647 W IB2005002647 W IB 2005002647W WO 2006027665 A1 WO2006027665 A1 WO 2006027665A1
Authority
WO
WIPO (PCT)
Prior art keywords
machine
sheets
cavities
carrousel
work assembly
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.)
Ceased
Application number
PCT/IB2005/002647
Other languages
English (en)
Inventor
Franco Goglio
Marco Verri
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.)
Goglio SpA
Original Assignee
Goglio 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 Goglio SpA filed Critical Goglio SpA
Priority to US11/574,802 priority Critical patent/US20080314003A1/en
Publication of WO2006027665A1 publication Critical patent/WO2006027665A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/50—Enclosing articles, or quantities of material, by disposing contents between two sheets, e.g. pocketed sheets, and securing their opposed free margins
    • 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
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/02—Packaging of substances, e.g. tea, which are intended to be infused in the package
    • B65B29/025—Packaging of substances, e.g. tea, which are intended to be infused in the package packaging infusion material into pods

Definitions

  • the present invention relates to a machine for making packs of infusion products, in particular coffee and the like.
  • the pods include a first sheet of filter paper, which forms a recess, containing a batched quantity of product, and a second sheet of filter paper, joined peripherally to the first sheet, so as to close the pack.
  • the sheets of filter paper are usually made of heat-weldable material. Different types of machines have been worked out for producing the pod packs.
  • These machines usually feed a first band of filter paper to a forming station, in which an ordered series of recesses are made on the band, arranged along one row or more rows situated one beside another.
  • the so obtained recessed band is fed, in a substantially linear feeding direction, to a filling station, where the batched quantities of product are put into the single recesses.
  • a second band of filter paper is then applied to the first one and welded thereto, peripherally with respect to the recesses.
  • the band is cut around each recess, usually having a circular profile, so as to obtain single packs.
  • Particularly stepwise operated machines are used in the field for packing infusion products. In the above machines, the packing cycle requires dwelling of the band of filter paper for a time necessary to perform each single processing operation, aimed at completing of the product packing.
  • each dwell is defined by the minimum time required for the respective processing.
  • machines operating continuously that is machines, in which the processed products are managed continuously, without any break for performing necessary processing.
  • the above type of packaging machines includes machines, which work tangentially and machines, which work along production lines.
  • the tangentially working machines In order to perform each processing, the tangentially working machines usually use a pair of carrousels, cooperating in a region corresponding to only one tangent point.
  • the items are fed to suitable work stations, situated on the first rotating carrousel, while the respective work assembly is situated on the second rotating carrousel, operated continuously in suitable step relation with the first one.
  • the continuous machines operating on parallel lines can be used for more complicated packaging operations, which requires considerable time intervals.
  • each processing operation is performed by a wok assembly carried by a conveyor, which joins the conveying line, on which the items are conveyed, along a section necessary for carrying out the operation, item.
  • Joining of the conveyor and the conveying line occurs when the single item and the respective work assembly move with the same speed, so as to allow processing operations requiring some time.
  • the machines operating on parallel lines can be cumbersome, and thus require high costs due to the need of production spaces, especially when the processing operations to be performed are numerous and complicated.
  • the known machines have considerable limitations related to the productivity and functionality, and they usually have a complicated structure, difficult to manage in the available spaces.
  • the machines for packaging infusion products considerable disadvantages derive particularly from the fact that they package a plurality of products arranged adjacent to one another on a band being processed.
  • the rmarkable quantity of scraps mentioned above is especially due to the need to change the size, when necessary, for obtaining pods having different dimensions from a band with constant width.
  • the object of the present invention is to resolve the above problems, by proposing a machine for making packs of infusion products, which allows efficient processing, optimizing the production rate and reducing the waste of packaging material.
  • Another object of the present invention is to propose a machine, whose structure allows use of any type of packaging material, in particular as far as thickness, nature, weft, and permeability thereof are concerned.
  • the machine for making packs of infusion products including a first sheet of packaging material, forming a recess, in which a batched quantity of product is placed, and a second sheet of packaging material, applied on said first sheet of packaging material and joined thereto along its outline, characterized in that it includes at least one work assembly for feeding said first sheets of packaging material; a carrousel, operated into rotation on a horizontal axis, in suitable step relation with the feeding of said first sheets and having, made on its periphery, an ordered series of cavities for receiving said first sheets and forming a respective recess, whose shape is suitable for containing said batched quantity of product; a filling group for introducing said batched quantity of product into said recess formed on said first sheets; a group for feeding single second
  • Figure 1 is a front view of a machine for making packs of infusion products, proposed by the present invention
  • Figures 2 and 3 are respective axonometric, enlarged views of an infusion product as it appears in subsequent working steps;
  • Figures 4A and 4B are respective, partial, front views of the above carrousel connected to a work assembly;
  • - Figure 5 is a partial, top view of the above mentioned cavities made on the carrousel;
  • Figures 6, 7 and 15 are views of particulars of the above mentioned carrousel and of a general work assembly, connected thereto;
  • Figures from 8 to 14 show different views and enlarged particulars of the above mentioned work assembly for feeding a first sheet of filter paper
  • Figures from 16 to 19 are different views of the above filling group of the proposed machine.
  • Figures from 20 to 23 are different views of the above mentioned work assembly for feeding a second sheet of filter paper; - Figures from 24 to 27 are views of the above mentioned work assembly for discharging the packed product, in subsequent working steps.
  • the reference numeral 1 indicates a machine for making packs 2 for infusion products, in particular pods for preparing, by means of suitable machines, infusion beverages like coffee or the like.
  • the packs 2 include a first sheet 21 of filter paper, with a recess made therein for receiving a batched quantity of product 20, and a second sheet 22 of filter paper, joined to the first one along the edge, so as to close the pack 2 (See Figures 2 and 3).
  • the sheets 21, 22 are made of heat-weldable material.
  • the machine 1 includes a carrousel 10, carried, with possibility of rotation on a horizontal axis, by a motor shaft 12 supported a stationary frame 13 of the machine.
  • the carrousel 10 is driven into rotation, preferably with continuous motion, by motor means of known type, not shown.
  • the carrousel 10 has an ordered series of cavities 11 , made along its edge and aimed at receiving single first sheets while being formed.
  • the cavities 11 are preferably arranged in more rows, one beside another, as shown in Figure 5.
  • the cavities 11 are aimed at being set in communication with suction means, not shown, by respective suction conduits, so as to hold the above first sheets 21 (see Figures HA, HB).
  • a plurality of satellite devices 3, 4, 5, 6 cooperate with the carrousel 10, preferably according to the method for continuous processing of items, proposed by the contemporary Patent Application No. BO2004A 000545 filed on September 7, 2004 by the same Applicant.
  • satellite devices which carry respectively work assemblies 30 for feeding and forming first sheets 21, work assemblies 40 for filling the recess made on the first sheets 21 with a batched quantity of product 20, work assemblies 50 for feeding and closing single second sheets 22 and work assemblies 60 for cutting the so obtained pack 2.
  • the satellite devices 3, 4, 5, 6, carrying the respective work assemblies 30, 40 ,50 ,60 are aimed at being driven into rotation on an axis parallel to the one of the carrousel 10, so as to connect the above mentioned single work assemblies 30, 40, 50, 60 to respective work stations located in regions corresponding to the rows of cavities 11, arranged along the edge of the carrousel 10.
  • the general satellite device S shown in Figures 4A and 4B, includes four general work assemblies G, arranged angularly and offset with respect to the center of the device, aimed at withdrawing items from a general withdrawing station P and at transferring them to respective work stations (cavities 1 1 in fact) of the carrousel 10; the work assemblies G move in synchrony with the cavities 1 1 along an angular path included between an engaging initial angular position ⁇ l and a disengaging final angular position ⁇ 2. Likewise, the work assemblies G can perform a reverse action to withdraw items from the work stations (cavities 1 1 ), so as to transfer them to the discharging stations P.
  • each satellite device S includes a disc 23, mounted idle, by roll bearings means, on an axis integral to the machine stationary frame 13.
  • the disc 23 carries, in positions offset with respect to the center, one sleeve 24 for each work assembly, with a respective toothed wheel 25, rotating idly on a fulcrum F, coinciding with the axis of the sleeve 24.
  • the toothed wheel 25 can rotate freely by means of suitable roll bearings means on the sleeve 24 (see e.g. Figure 12).
  • the fulcrum F is aimed at describing a circumference, concentric with the axis of the satellite device S, and indicated with broken line C in Figures 4A and 4B.
  • the circumference C intersects a circumference, concentric with the axis of the carrousel 10, indicated with broken line B in Figures 4A and 4B, in two points corresponding to the above mentioned initial angular position ⁇ l and final angular position ⁇ 2.
  • the carrousel 10 drives the satellite device S into rotation with an angular speed, which depends on the path defined between the initial angular position ⁇ l and the final angular position ⁇ 2.
  • a guiding element 26 is fastened to each toothed wheel 25, by known fastening means.
  • a carriage 27 slides inside the guiding element 26 and supports a respective work assembly G.
  • the sliding of the carriage 27 along the guiding element 26 is obtained by means of e.g. a prismatic coupling with grooved guides 28 (see Figure 15).
  • the carriage 27 carries, integrally cantilevered, a bracket 29, aimed at relating to and coupling with respective coupling means 14 of the respective work station, formed by one row of cavities 11 : these means are preferably magnetic means, of the type protected by the Patent Application No. BO2004A 000547, filed on September 7, 2004 by the Applicant.
  • the bracket 29 carries centering means 290, e.g. a conical pin, aimed at engaging with a corresponding coupling seat 140, made on the coupling means 14 (see Figure 6).
  • centering means 290 e.g. a conical pin
  • the centering means 290 include suitable absorbing means 291, e.g. elastic or hydraulic, aimed at absorbing possible impacts deriving from the connection of the row of cavities 11 with the respective work assembly G.
  • suitable absorbing means 291 e.g. elastic or hydraulic
  • Figure 7 shows additional coupling means 141 of mechanical type, aimed at fastening the carriage 27 to the carrousel 10.
  • the additional coupling means 141 include a lever 142, carried oscillating on a pin 143, integral with the carrousel 10 and forming a hook, aimed at engaging with a tooth 144 integral with the carriage 27.
  • the lever 142 carries a roller 145, which is aimed at following a front cam 146, fastened to the machine stationary frame 13, so as to make the lever 142 rotate angularly between a coupling position, determined by a spring 147, and an uncoupling position 142a.
  • the sleeve 24 has an axial hole 240, through which suitable operating means 241 and locking means 242 operate.
  • the means 241, 242 include respectively a cylindrical sleeve 243 and a push rod, fastened axially to a stem 244 sliding axially inside the cylindrical sleeve 243.
  • the cylindrical sleeve 243 slides axially inside the axial hole 240.
  • the above mentioned means 241, as well as the means 242 are operated by a cam mechanism so as to translate move axially.
  • the operating means 241 are moved by a first axial, motionless cam 245, fastened coaxial to the disc 23, and by a first roller 246, carried by a first bracket 247, integral with the cylindrical sleeve 243.
  • the locking means 242 are operated by a second, axial, motionless cam 248, coaxial with the disc 23, and by a second roll 249, carried by a second bracket 250, integral with the stem cylindrical sleeve 244, so as to move axially.
  • the push rod carried by the stem 244, is aimed at translating from a rear position up to a fore position, protruding from the guiding element 26 through a respective hole, in order to engage a hollow 251 made on the carriage 27, so as to block the motion of the carriage 27.
  • Each toothed wheel 25 engages with a respective idle wheel 31 , rotatably carried on the disc 23, which in turn engages with a central, motionless wheel 32, coaxial with the disc 23 of the satellite device S.
  • the central, motionless wheel 32 has a toothless down-stepped section 33, whose extension corresponds to the angular path, in which the work assembly G is matches the row of cavities 11 of the carrousel 10.
  • the down-stepped section extends through 90°, (see Figure 4A).
  • the gear formed by the central, motionless wheel 32 and the idle wheels 31, is aimed at driving the toothed wheels 25 into rotation on its fulcrum F, supporting the work assemblies G, during an idling step, while the presence of the down-stepped section 33 disengages the work assembly G from the motion transmission during the active step.
  • the machine includes a first satellite device 3, carrying four work assemblies 30 for feeding and forming first sheets 21, supported by as many carriages 27, as described before.
  • the sheets 21 are advantageously fed by an apparatus 300, to form single sheets of packaging material, described in a more precise way in the contemporaneous Patent Application No. BO2004A 00542 filed on September 7, 2004 by the same Applicant.
  • the feeding and forming groups 30 withdraw single first sheets 21 in a first withdrawing station 310, situated in a position corresponding to a machine 300, transfer the sheets 21 to a respective row of cavities 11 of the carrousel 10 and finally, form, on the latter, recesses suitable for containing batched quantity of product 20.
  • said work assemblies 30 withdraw and form the single first sheets 21, according to a system for transferring items from a withdrawing station to a work station, disclosed in another contemporaneous Patent Application No. BO2004A 00546 filed on September 7, 2004 by the same Applicant.
  • the feeding and forming means 30 include an actuator element 34, aimed at driving a plurality of units 35, carried by respective stems 36, so as to move orthogonal with respect to the axis of the satellite device.
  • the actuator element 34 includes e.g. a mechanism operated by the previously described cylindrical sleeve 243.
  • cylindrical sleeve 243 is rigidly connected to a bracket 340, which, in turn, carries a tie rod 544, extending parallel to the rotation axis of the carrousel 10.
  • Toggles 341 are connected to the tie rod, to operate the stems, carrying the units 35 to move synchronously in an axial direction.
  • Each unit includes a platform 35a, keyed onto the stem 36, a head 35b, a shaft 37, aimed at connecting the platform 35a to the head 35b, and self-leveling means 38, situated between the platform 35a and the head 35b (see Figure 14).
  • the shaft 37 onto which the head 35b is keyed, is fastened to the platform 35a in known way and it can oscillate with respect thereto within a prefixed 3D angle.
  • the above oscillation is allowed by the width of a seat 380 made in the platform 35a, concentric to the stem 36, inside which the shaft is introduced freely.
  • the self-leveling means 38 include preferably three push rods 381, spaced apart angularly and equidistant with respect to the axis of the platform 35a; elastic means 382, preferably disc springs, are situated between the platform 35a and each push rod 381.
  • Each push rod 381 slides axially in a related hole 383, made in the platform 35a, and engages with a corresponding conical seat 384, made in the inner surface 350 of the head 35b turned toward the platform 35 a.
  • the head 35a of e.g. with squared horizontal cross-section, includes a body having an inner surface 350 and an outer surface 351, and groups 352, for example four. Each group 352 intersects the body of the head 35b along its whole depth and is located at a corresponding corner.
  • the outer surface 351 of the above body has preferably a circular impression 353, centered with respect to the axis of the head 35b (see Figures 8 and 9).
  • the above circular impression 353 is aimed at forming a first sheet 21 , according to the shape of the cavities 1 1 made on the carrousel 10.
  • Known heating means not shown, supply the amount of heat necessary to form the above first sheets 21.
  • Each group 352 includes a sleeve 354, a gripping group 355 and a lever 355 (see Figure 10).
  • the sleeve 354 can slide axially with respect to the inside of the head 35b body and protrudes with respect to the upper part of the inner surface 350 of a threaded part 357, engaged with a nut 358 and a locknut 359.
  • the sleeve 354 forms a flat surface 360, whose portion coupled with the above circular impression 353, has curved cross-section (see Figure 9).
  • the axial sliding of the sleeve 354 is contrasted by preloaded elastic means 361, situated between the sleeve and the head 35b, and limited by the abutment of the nut 358 against the inner surface 350 of the head 35b body.
  • the gripping group 355 is situated inside the sleeve 354, inside which it can slide axially against the preloaded elastic means 362, situated between the sleeve 354 and the group.
  • first end stop 363 defined by the abutment of the head 364, carried by a relative stem and forming an end of the gripping group 355, against the outer surface of the threaded part 357 of the sleeve 354.
  • the above first end stop 363 defines a first outer idle point of the group.
  • the gripping group 355 includes, on its outer side, a head 365, which carries a plurality of needles 366, e.g. four, arranged in correspondence to the corners of a square.
  • the outer surface of the head 365 is flat and coplanar with the flat surface 360, when the gripping group 355 goes in abutment against the first end stop 363.
  • the coupling of the nut 358 and the locknut 359 with the threading of the threaded part 357 is performed in such a way, that, if no outer stresses act on the flat surface 360, it protrudes from the outer surface 351.
  • the flat surface 360 protrudes with respect to the outer surface 351 of the head 35b body by a quantity, which can be adjusted by the regulation of the nut 358 on the threaded part 357.
  • Each needle 366 includes a point 366a, preferably conical, and a shank 366b, rigidly fastened to the head 365.
  • the first withdrawing station 310 has a substantially flat withdrawing surface 311 , which, in the given working configurations, face a respective head 35b and has recesses 312, whose number is equal to the number of the groups 352, and whose depth is at least equal to the length of the needles 366.
  • the cross-section of each recess 312 defines a polygon, which contains the one defined by the tips of the needles 366 fastened to each head 365.
  • the respective work station on the carrousel 10 has block abutments 15, situated at the side of each cavity 11, in a number equal to the number of the groups 353, so that each block abutment goes into contact with a respective lever 356 to raise the head 365 of the gripping group 355 to the flat surface 360 of the sleeve 354.
  • the machine 1 Downstream of the first satellite device 3, along the feeding direction A of the carrousel 10, the machine 1 includes a second satellite device 4, carrying four work assemblies 40 for filling batched quantities of product 20, supplied by an apparatus 400 for batching powder products, according to the method and the same apparatus described in another contemporary Patent Application No. BO2004A 000543 filed on September 7, 2004 by the same Applicant.
  • Each filling group 40 (see Figures from 16 to 19) is aimed at withdrawing a series of batched quantities of product 20 from a respective second withdrawing station 410 of the apparatus 400, situated above the carrousel 10, at transferring the above batched quantities 20 to a respective row of cavities 11, where respective formed first sheets 21 are situated, and finally, at compressing the above batched quantities 20 against the above cavities 11 covered with the first sheets 21.
  • each work assembly 40 includes a body 40a, with introduced thereinside, a plurality of plungers 41 , carried by respective grooved stems 42.
  • Mechanisms with toggles 43 operate the grooved stems 42 into axial motion between a rear configuration and a fore configuration.
  • the mechanism with toggles 43 is operated by a tie rod 644 guided by a bracket 640, fastened to the push rod, connected to the stem 244, which is operated by a cam mechanism 248 and roller 249 like the ones already described.
  • the plungers 41 forms each a concave head 41a, aimed at hollow a respective batched quantity of product 20.
  • the shape of the concave head 41a is preferably complementary to the shape of the cavity 11 , so as obtain a whole of a pod.
  • a second mechanism 44 operated by the sleeve 243, controlled by a cam mechanism 245 and roller 246, already illustrated, controls a series of shutter devices 45, aimed at allowing, during respective working steps, the passage of two batched quantities 20 from the second withdrawing stations 410 to the concave heads 41a of the plungers 41, the strong holding of the batched quantities 20 against the concave heads 41a during the transferring to respective work stations, and finally, the discharge of the quantities 20 in correspondence to respective cavities 11 covered with the first sheets 21.
  • each shutter device 45 forms preferably a plate of four lobes 450, overlapping a portion of the outer surface of the body 40a, which engages a pair of plungers 41 , situated one beside another.
  • the plate 450 is rotatably carried on a pin 451, in a median position between the above pair of plungers 41 , coaxial with the grooved stems 42 (see Figure 18).
  • the plate of four lobes 450 has also a pair of opposite openings 452, whose shape allows the passage of a respective batched quantity 20.
  • the openings 452 have a substantially circular shape.
  • the pin 451 is driven to rotate by a sleeve 243, integral with a rack 46, parallel to the axis of the satellite device 4.
  • the rack 46 engages with an intermediate wheel 47, which in turn, engages with a pinion 48, keyed onto the pin 451, driving it into rotation.
  • the openings 452 overlap respective concave heads 41a, freeing the passage to the respective batched quantities 20, while during other working steps, the same openings are turned with respect to the previous configuration and the four-lobe plate 450 acts as a cover situated above the concave heads 41a.
  • the grooved stems 42 rotate continuously.
  • the grooved stems 42 are introduced coaxial into the grooved hub of respective toothed wheels 49, which are operated, by the interposition of suitable idle wheels idle wheels 490, from a single conical pinion 491, situated below, engaged with a fixed toothed crown 492, arranged coaxial with the carrousel 10.
  • the conical pinion 491 is carried by a shaft 493, arranged parallel to the grooved stems 42.
  • the shaft 493 is house, in a passing through condition, in a suitable seat 494, made in the body 40a of the respective filling group 40.
  • the shaft 493 has a suitable shoulder 495, situated inside the seat 494.
  • Suitable, preloaded elastic means 496 act between the seat 494 and the shoulder 495, so as to ensure a firm engagement between the conical pinion 491 and the fixed toothed crown 492, in the beginning of the active step of the respective filling group 40.
  • a third satellite device 5, situated downstream of the second satellite device 4, carries four work assemblies 50 for feeding and closing the second sheets 22.
  • Each of the four work assemblies 50 is aimed at withdrawing second sheets 22 from an apparatus 300 for forming single sheets of packaging material, in a first withdrawing station 310 (see Figure 1), at transferring and feeding the above second sheets 22 to respective recesses, already filled with the batched quantity 20 of product, and at closing the so formed pack by heat- welding.
  • the apparatus 300 for forming single second sheets 22 is quite identical to the apparatus for forming first sheets 21.
  • the heads 35b of the units 35 include respective circular impressions 51 , concave not convex, since the second sheets 22 must cover respective cavities, already filled with product (see Figures 21 and 22).
  • the same heads 35b include, situated thereinside, a heating member 52 of known type, aimed at heating the first sheets 21 and the second sheets 22, in order to heat-weld them.
  • the heating member 52 is e.g. ring-like and is introduced, outside the circular impression 51, inside the head 35b in the joining area (see Figures from 20 to 23).
  • the machine 1 includes a fourth satellite device 6, carrying four respective work assemblies 60, aimed at trimming peripherally the so obtained packs and at allowing the latter to move away from the respective work stations formed by the rows of cavities 1 1 (see Figures from 24 to 27).
  • each trimming group 60 includes a bracket 61, parallel to the axis of the satellite device.
  • the bracket 61 has pins 62, orthogonal thereto, hinged to the toggle mechanisms 63 of the previously described type.
  • the mechanisms 63 are controlled by a respective cylindrical sleeve 243, operated in turn, as it has been said previously, by a respective cam mechanism.
  • the bracket 61 moves between a rear configuration and a fore configuration, in which the packaging material is trimmed.
  • the bracket 61 carries, orthogonal thereto, a plurality of trimming units 64, aimed at trimming scraps of filter paper from the respective packages.
  • trimming units 64 are keyed into suitable seats 61a made in the bracket 61.
  • Each trimming unit 64 includes a shaped head 65, a trimming cup-like blade 66, and a paper pressing cup 67.
  • the shaped head 65 slides axially and carries, on one end, an impression 68, aimed at hollow the product packaged during the trimming and discharge steps.
  • an impression 68 forms a concave recess, substantially equal to a half product, but it is also possible to pack one-shell- like products, by using substantially flat impressions 68.
  • the shaped head 65 has also, in the region corresponding to the impression 68, suction ducts 69, which lead to an inner chamber 70, connected to known suction means, not shown.
  • the suction means are aimed at keeping the packaged product in adherence within the impression 68 during the transferring to a respective discharge station 610 ( Figure 27).
  • the shaped head 65 is made in two parts, however it can be made also in one piece or in another way, according the to constructive preferences.
  • the shaped head 65 forms a sleeve 65a, having a terminal threaded portion 65b.
  • a nut 71 and a locknut 72 are coupled with the terminal threaded portion 65b.
  • the trimming cup blade 66 forms, at its lower end, a blade of continuous shape, e.g. circular, and, at its upper end, it carries a sleeve 66a, keyed axially outside the sleeve 65a.
  • the longitudinal extension of the sleeve 66a is smaller than the extension of the hollow sleeve 65a, so that the terminal part of the sleeve 66a is situated below the nut 71.
  • the sleeve 66a has also a threaded end, to be tightened with a respective nut 85, in abutment against the outer surface 61b of the bracket 61.
  • the tightening blocks the downward sliding of the sleeve 66a.
  • the paper pressing cup 67 forms substantially an overturned cup, keyed onto the sleeve 66a of the trimming cup blade 66 through a central hole 74, made on the flat surface 75 of the pressing cup 67.
  • this coupling is preferably made with a clearance and in such a way that the paper pressing cup 67 slides on the sleeve 66a.
  • the paper pressing cup 67 forms, at its lower end, an edge 76, with a wedge shape, aimed at pushing, in abutment against the carrousel 10, a respective paper pressing seat 77, e.g. ring-like, situated outside the cavity 11.
  • the axial positioning of the paper pressing cup 67 is determined by elastic means 78, interposed between the upper flat surface 75 of the beaker and the seat 61a of the bracket 61, in a position corresponding to a respective abutment 79, made therein.
  • a push rods device 80 positions axially the trimming cup blade 66.
  • the push rods device 80 includes preferably three pegs 81, equidistant and regularly spaced apart with respect to the axis of the working unit 64.
  • Each peg 81 is introduced, passing therethrough, inside holes 178, 179, made respectively in the bracket 61 and in the paper pressing cup 67.
  • Each peg 81 includes, at the respective ends, a head 81 a, in abutment against the upper surface of the bracket 61, and a substantially half-spherical push rod 81b, which goes in contact with a respective flat surface 82, situated at the bottom of a respective hollow, made on the top of the trimming cup blade 66.
  • a collar 83 formed by the peg 81 above the push rod 81b, acts as abutment for respective preloaded elastic means 84, aimed at maintaining the coupling of the head 81 a with the upper surface of the bracket 61 (see Figure 25B).
  • a counter-blade seat 185 is located in the carrousel 10, between the cavity 1 1 and the paper pressing seat 77, so as to match the trimming cup blade 66 during the trimming step, when the trimming unit 64 is in the fore position.
  • Withdrawing means 90 situated downstream of the trimming satellite device 6, are carried, with possibility to rotate, by a shaft 91, coaxial with the carrousel.
  • the withdrawing means 90 form substantially a star device, which has a withdrawing unit 92 at the head of each radial rod.
  • Each unit 92 is aimed at withdrawing, e.g. by known suction means, the packages 2 of a row, kept by respective shaped heads 65, so as to transfer them to the subsequent production or storage areas.
  • the carrousel 10 is operated to move continuously on the shaft 12, in the direction indicated with the arrow A.
  • the coupling means 14 act, so as to refer and couple the carriage 27, supporting the work assembly G, to the row of cavities 1 1, in a reliable way, so as to perform a given operation on the cavities 1 1 of the carrousel 10.
  • the carrousel 10 rotates the idle disc 23 of the satellite device S, carrying the active work assembly G.
  • the fulcrum F of the work assembly G covers a circumference portion B of the satellite device S, included between the initial angular position ⁇ l and the final angular position ⁇ 2.
  • the push rod carried by the stem 244, which protrudes from the sleeve 14, is in its rear position and thus, it does not engage the carriage 27, and consequently, it is free to move along the guiding element 26 ( Figure 13).
  • the active work assembly G moves, because it is solidly fastened to the row of cavities 1 1 of the carrousel 10.
  • the active work assembly G pulled by the carrousel 10, performs a double rotational movement, about the fulcrum F, and a radial movement with respect to the carrousel 10 along the guiding element 26.
  • the relative speed of the active work assembly G with respect to the row of cavities 1 1 , to which it is connected, is zero, so as to make it possible to perform the respective operation during the angular path, from the initial angular position ⁇ l to the final one o2.
  • the remaining non- active work assemblies G carried by the same satellite device S, rotate on their fulcrum F, due to the engagement with the central, motionless wheel 32, and on the axis of the satellite device S, due to the pulling action operated by the carrousel 10 on the active work assembly G (see Figures 2 and 3).
  • the respective push rod carried by the stem 244, engages with the relative carriage 27 and thus it prevents the translation of the supported work assembly G ( Figure 4A).
  • the coupling means 14 are deactivated, so as to move the work assembly G away from the row of cavities 1 1.
  • the push rod carried by the stem 244 slides axially, operated by a respective cam mechanism and engages with the carriage 27 of the same work assembly G, locking again its translation along the guiding element 26.
  • each work assembly G rotates on its fulcrum F, so as to reach the initial angular position ⁇ l in a configuration suitable for operating the coupling means 14, in order to perform a further operation on the subsequent row of cavities 1 1 , in the rotation direction A of the carrousel 10.
  • centering means 290 are uncoupled and the push rod carried by the stem 244 engages the respective hollow 251, so as to prevent the axial sliding of the carriage 27 along the guiding element 26.
  • the heads 35b of the units 35 carried in fore position by the actuator element 34, goes in contact with the series of first sheets 21, situated on the withdrawing surface 31 1 of the first withdrawing station 310.
  • the needles 366 punch the first sheets 21 preferably in regions corresponding to adjacent areas, which will be subsequently trimmed, and enter the recesses 312.
  • the flat surface 360 of the sleeve 354 is aligned with the outer surface of the head 365 and it substantially touches the first sheets 21.
  • the first sheets 21 solidly held by the heads 365 with the needles 366, are transferred to be fed to the carrousel 10 (see Figure 12).
  • the feeding step begins when the work assembly 30 reaches the initial angular position ⁇ l, described previously, in which the centering means 290 refer to the respective coupling seat 140.
  • the toothed wheel 25 is driven to rotate on the fulcrum F and on the axis of the satellite device 3, since it is pulled together with the carrousel 10.
  • the idle wheel 31 is situated in correspondence to the groove 33 of the central, motionless wheel 32.
  • the actuator element 34 leads the units 35 to the fore configuration.
  • the levers 556 are then stricken by the abutments 15, which cause the raising of the heads 365 with respect to the sleeve 354 (see Figure 13B), while the flat surface 360 locks peripherally the first sheets 21 in a region corresponding to the respective cavity 11.
  • the circular impression 353 abuts against the inner surface of the cavity 11, to form the first sheet 21.
  • Heating means are used to transmit heat in suitable step relation with the units 35 feeding, so as to obtain preferably heat-forming of the first sheets 21: in this connection see the Patent Application No. BO2004A 000544 filed on September 7, 2004 by the same Applicant.
  • the work assembly 30 is uncoupled in the final angular position ⁇ 2.
  • the first sheets 21, with the respective formed recesses, are held inside the cavities 11 by suction means acting therein.
  • the only function of the suction means is to contrast the centrifugal force, since the shaping of the sheets, obtained by the heat-forming, is stable.
  • the second satellite device 4 acts, carrying the filling groups 40 for withdrawing the batched quantities 20 of product, filling and compressing the quantities 20 on the recesses formed in the first sheets 21, suitably situated on the carrousel 10.
  • a filling group 40 reaches the second withdrawing station 410 during the idle step.
  • the plungers 41 are in a completely withdrawn configuration, while the shutter devices 45, set in contact with the withdrawing surface of the station 410, are rotated so that the openings 452 face the respective feeding openings of the batching machine 400, as well as the corresponding concave heads 41a.
  • the machine feeds the batched quantities 20 of product, which are received by the concave space of the concave heads 41a.
  • the shutter devices 45 are rotated synchronously, so as to cover the heads 41 a and thus prevent the batched quantity 20 from leaving during the transferring step, which occurs during the subsequent rotation of the filling group 40 on the axis of the second satellite device 4.
  • the filling group 40 matches with the carrousel 10.
  • the shutter devices 45 in contact with the peripheral portion of the carrousel 10, are rotated synchronously again, so that the openings 452 face the plungers 41 , as well as the respective row of cavities 1 1 , with the formed first sheets 21.
  • the feeding of the plungers 41 transfers the batched quantities 20 onto the recesses formed by the first sheets 21 and, in the final step of the stroke, compress the batched quantities 20 on the cavities 1 1.
  • the conical pinion 491 is engaged with the fixed toothed crown 492, so as to add a rotation movement to the plungers 41 feeding, in order to uniform the compression performed on the batched quantities 20 of product.
  • the third satellite device 5 intervenes, equipped with work assemblies 50 for feeding and closing the second sheets 22.
  • the operation way of each of the work assemblies 50 coincides with the one already described in relation to the groups 30 for feeding and forming the first sheets 21 , with the only differences explained below.
  • the second sheets 22 are arranged to cover respective batched quantities 20 of product, already formed inside the recesses of the first sheets 21, since the second sheets 22 go in abutment against the concave surface of the concave circular impressions 51 of the units 35.
  • the fourth satellite device 6 intervenes, carrying the trimming groups 60.
  • the trimming groups 60 are set in contact with the peripheral portion of the carrousel 10, in a position corresponding to the row of cavities 1 1, already having the batched quantities 20 interposed between the first sheets 21 and the second sheets 22, joined thermally.
  • the feeding of the bracket 61 brings each edge 76 of the paper pressing cups 67 to contact the first sheets 21 and the second sheets 22, pushing them tightly inside the paper pressing seat 77.
  • the push rods devices 80 push the trimming cup blades 66 into contact with the first sheets 21 and the second sheets 22, protruding from the cavities 1 1 , and to cut them.
  • the trimming operation finishes when the blade of the trimming cup blades 66 reaches the respective counter-blade seatl 85.
  • the so finished packs 2 are closed between the respective cavities 1 1 and shaped heads 65, since they are kept by suction means, which act in correspondence to the cavities 1 1 (see Figure 25B).
  • the transferring of the packs 2 to the subsequent discharge station 610 is allowed by the activation of the suction means acting at the inner chambers 70, connected to the shaped heads 65, as described.
  • the coupling means of the work assembly 60 are disengaged and the units 64 withdrawn (see Figure 26).
  • the locking means 242 lock again the carriage 27, and the respective work assembly 60 is rotated until it reaches the discharge station 610, situated beside the fourth satellite device 6.
  • the bracket 61 carrying the units 64, is moved again by the toggles mechanism 63, so as to transfer the packs 2, carried by the shaped heads 65, to the withdrawing means 92 (see Figure 27).
  • suction means connected to the inner chambers 70 of the shaped heads 65 are deactivated, when the packs 2 face the respective withdrawing means 92, so as to receive and hold them tightly.
  • the withdrawing device prepares packs 2 obtained in other working areas.
  • the described machine reaches the object of making packs of infusion products, such as coffee and the like, with the best use of filter paper.
  • an advantage of this machine lies in fact that it allows to reduce substantially the removed filter paper, i.e. production wastes, which obviously diminishes the packs cost.
  • the dimensions of the single sheets 21, 22 of filter paper are adapted to the dimensions of the packs to be made and can be suitably varied, if the packs size is changed.
  • single sheets 21 , 22 of filter paper for making packs 2 does not limit the type of packaging material, in particular as far as thickness, weft, and permeability thereof are concerned.
  • the user can choose any kind of paper, even thin or soft, because there are no particular requirements concerning the mechanical resistance, connected to the pulling of the filter paper band. It is also possible to use packaging materials different than filter paper, e.g. sheets of permeable material, natural and/or synthetic, or a kind of fabric obtained with natural and/or synthetic fibers.
  • a further advantage of the proposed machine lies in the fact that it allows to make packs of infusion products, working in parallel on any number of rows, arranged side by side, so as to obtain high productivity. Moreover, due to the continuous operation of the carrousel 10, the productivity is further increased, since the processed products are not stopped during the packaging cycle.
  • the most delicate steps such as the packs filling or closing, are performed by connecting the respective satellite devices to the carrousel 10, while it rotates continuously.
  • each work station 6 is connected to the respective work assembly G along the angular path between the initial angular position ⁇ l and the final angular position ⁇ 2, and not in only one tangent point, as it occurs in the prior art tangential machines.
  • the proposed machine allows to perform all the processing steps on the same carrousel 10, so as to optimize the production spaces, not only with respect to the continuous, linear machines, but also with respect to the less bulky, tangential machines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

La présente invention a trait à une machine pour la fabrication d'emballages (2) de produits d'infusion, réalisés par une première feuille (21) de matériau d'emballage, formant un évidement, dans lequel est placée une quantité en lots de produit (20), et une deuxième feuille (22) de matériau d'emballage, appliquée sur la première feuille (21) de matériau d'emballage et assemblée en périphérie à celle-ci. La machine comporte un ensemble de travail (30) pour l'alimentation des premières feuilles (21) à un carrousel (10), entraîné en rotation sur un axe horizontal, à un pas approprié avec l'alimentation des feuilles. Le carrousel (10) comporte, réalisé à sa périphérie, un évidement respectif, dont la forme est adaptée pour contenir la quantité en lots de produit (20). Une unité de remplissage (40) introduit la quantité en lots de produit (20) dans l'évidement formé sur les premières feuilles (21), relié aux cavités (11) du carrousel (10). Une unité (50) pour l'alimentation de deuxièmes feuilles uniques (22) assemble les premières et deuxièmes feuilles (21, 22) dans une zone autour de l'évidement rempli de quantités en lots de produit (20). Un ensemble de travail d'évacuation (610) retire les produits emballés (2) du carrousel (10).
PCT/IB2005/002647 2004-09-07 2005-09-07 Machine pour la fabrication d'emballages pour un produit d'infusion Ceased WO2006027665A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/574,802 US20080314003A1 (en) 2004-09-07 2005-09-07 Machine for Making Packs of an Infusion Product

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO2004A000548 2004-09-07
IT000548A ITBO20040548A1 (it) 2004-09-07 2004-09-07 Macchina per realizzare confezioni di prodotti da infusione

Publications (1)

Publication Number Publication Date
WO2006027665A1 true WO2006027665A1 (fr) 2006-03-16

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PCT/IB2005/002647 Ceased WO2006027665A1 (fr) 2004-09-07 2005-09-07 Machine pour la fabrication d'emballages pour un produit d'infusion

Country Status (3)

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US (1) US20080314003A1 (fr)
IT (1) ITBO20040548A1 (fr)
WO (1) WO2006027665A1 (fr)

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US9346569B2 (en) 2010-07-07 2016-05-24 Conopco, Inc. Process and apparatus for producing packets
CN110382364A (zh) * 2017-03-09 2019-10-25 I.M.A.工业机械自动化股份公司 用于供给浸泡产品的计量装置

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ITBO20120706A1 (it) * 2012-12-21 2014-06-22 Ima Ind Srl Macchina per la formazione di bustine con prodotti da infusione
ITUB20152469A1 (it) * 2015-07-24 2017-01-24 Marco Verri Apparecchiatura per la realizzazione di un prodotto, preferibilmente di un prodotto alimentare per realizzare una bevanda tramite infusione in un rispettivo liquido
US10925430B2 (en) * 2015-11-23 2021-02-23 Mb2 Cup Development Llc System, apparatus, and method for preparing a beverage cartridge
US12121176B2 (en) * 2015-11-23 2024-10-22 Cupper Llc System, apparatus and method for preparing a beverage cartridge
US11745906B2 (en) * 2015-11-23 2023-09-05 Cupper Llc System, apparatus, and method for preparing a beverage cartridge
CN111063322B (zh) * 2019-12-31 2024-07-12 广州珠江恺撒堡钢琴有限公司 钢琴攀带的制作设备和制作方法
IT202000002533A1 (it) * 2020-02-10 2021-08-10 T M E S P A Metodo e macchina confezionatrice per la realizzazione di una cialda compostabile per prodotti da infusione

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US9346569B2 (en) 2010-07-07 2016-05-24 Conopco, Inc. Process and apparatus for producing packets
CN110382364A (zh) * 2017-03-09 2019-10-25 I.M.A.工业机械自动化股份公司 用于供给浸泡产品的计量装置
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US20080314003A1 (en) 2008-12-25

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