WO2006008624A1 - Unit for feeding infusion material to a machine producing filter packs - Google Patents

Unit for feeding infusion material to a machine producing filter packs Download PDF

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Publication number
WO2006008624A1
WO2006008624A1 PCT/IB2005/002005 IB2005002005W WO2006008624A1 WO 2006008624 A1 WO2006008624 A1 WO 2006008624A1 IB 2005002005 W IB2005002005 W IB 2005002005W WO 2006008624 A1 WO2006008624 A1 WO 2006008624A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotary
designed
impressions
unit
feeders
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/IB2005/002005
Other languages
French (fr)
Inventor
Roberto Conti
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.)
IMA Industria Macchine Automatiche SpA
Original Assignee
IMA Industria Macchine Automatiche 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 IMA Industria Macchine Automatiche SpA filed Critical IMA Industria Macchine Automatiche SpA
Priority to JP2007520915A priority Critical patent/JP4741590B2/en
Priority to EP05755421A priority patent/EP1786676B1/en
Priority to US10/569,736 priority patent/US7614205B2/en
Priority to DE602005007248T priority patent/DE602005007248D1/en
Publication of WO2006008624A1 publication Critical patent/WO2006008624A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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

  • This invention relates to a unit for feeding infusion material to a machine producing packs made from filter material.
  • the present invention can be advantageously employed to feed powdered, ground coffee to an automatic packing machine designed to produce coffee "pods" made from filter paper.
  • feeding powdered coffee to machines which make and fill filter-paper coffee pods is performed by a unit fitted to the machine itself where the unit consists of feeder devices designed to drop an amount of coffee into a dosing chamber.
  • the dosing chamber is horizontal and inside has a sliding, reciprocating piston designed to push the dose of coffee dropped down by the feeders into a vertical feed tube from where the coffee drops down into a series of circular filter paper impressions; the impressions are formed by embossing a strip of filter paper on a corresponding series of circular recesses on an intermittent conveyor which forms the pod shaping and conveying line of the packing machine.
  • Vertical, reciprocating pressers are mounted at the feed tube and compress the coffee in the circular impressions before the impressions are covered on the top with a strip of filter paper in order to close and complete the pod.
  • a serious drawback to the feeding-dosing unit described above is that the powdered coffee is not distributed uniformly inside the circular pod impressions.
  • the aim of the present invention is to produce a feeder unit which overcomes the drawbacks cited above.
  • the aim of the present invention is to produce a coffee feeder unit for a packing machine that produces filter paper coffee pods of the specified quality and which operates at high production speeds.
  • the present invention describes a unit for feeding infusion material to a machine producing packs made from filter material.
  • the machine comprises a production line for making such packs and consists of a conveyor with mobile recesses moving in the feed direction and designed to be covered with filter material in order to form impressions in the filter material.
  • the unit is characterised in that it comprises rotary feeders designed to feed an amount or dose of infusion material into the impressions, and rotary precompactors mounted on the rotary feeders acting together with the rotary feeders to distribute the doses uniformly inside the impressions.
  • FIG. 1 is a front view, with some parts cut away and others in cross section to better illustrate certain details, of an embodiment of the feeder unit in a first operating position;
  • FIGS 2a and 2b are enlarged views of the unit in Figure 1 as seen from the front and from above respectively;
  • FIG. 3 is a front view, with some parts cut away and others in cross section to better illustrate certain details, of the feeder unit in Figure 1 in a second operating position;
  • - Figure 4 is front view of an infusion material pack filled by the feeder unit described in this invention.
  • the numeral 1 indicates a feeder unit for feeding powdered, ground coffee to the production line 2 of a packing machine M producing coffee pods 3 ( Figure 4) made from filter paper, the feeder unit 1 being an integral part of this machine.
  • the production line 2 comprises a intermittent-motion conveyor 4 moving in a horizontal feed direction L carrying a filter-paper strip 5, and having a series of modular elements 6.
  • Each modular element 6 has at least one, mobile circular recess 7 moving in the direction L and designed to make a corresponding circular impression 8 in the filter paper (dashed line in Figure 1) .
  • the impression is formed, using a known embossing method not illustrated here, by pressing the strip 5 into the recess 7 in order to form the lower portion or half-shell 9 ( Figure 4) of the pod 3 being formed by the machine.
  • FIGS 1, 2a and 3 show a feeder unit 1 consisting of rotary feeders 10 in the form of a feed screw 11 rotating about a vertical axis 12 inside a hollow, tubular, cylindrical container
  • the cylindrical container 13 is mounted at a distance D from the conveyor 4 ( Figure 1) and supports, on its outer surface, a sliding precompactor 14.
  • Figures 1 and 3 show the precompactor 14 which consists of a hollow, ring-shaped cap 15 fixed to a hollow, cylindrical, tubular element 16.
  • One end 17 of the tubular element 16 is designed to engage with the gear wheel (not shown here) of a motor unit (also not shown here) which rotates the tubular element around the cylinder 13 on special bearings and around the axis 12; the tubular element also slides vertically (arrow F in Figures 1 and 3) on the cylinder 13 between a rest position A, where the cap 15 is positioned at a distance from the conveyor 4 substantially the same as the distance D ( Figure 1) , and an operating position B where the cap 15 is designed to act on the upper portion of the powdered coffee dose C fed into the pod impression 8 by the feed screw 11 in order to aid the uniform distribution of the dose C ( Figure 3) by levelling it out uniformly inside the impression 8.
  • FIGS 2a and 2b show the end of the feed screw 11 where there is a separator 18 consisting of blades 19 extending radially at one end of a rotary cylinder 20 which rotates around the cylinder 13 which in turn rotates, independent of the feed screw 11 action, together with the tubular element 16 to which it is connected.
  • the rotary blades 19 are designed to act on the coffee dose C in the impression 8 already distributed uniformly by the action of the rotary cap 15 and thereby produce a dynamic separation between the dose C and the lower end of the screw feed 11.
  • the blades 19 are rotated together with the precompactor 14 by the tubular element 16 to which they are both connected and rotate together with the feed screw 11 to aid the flow of coffee downwards towards the impressions 8 when the feed screw 11 itself is rotating; when the feed screw 11 stops rotating, the blades 19 continue to rotate thus producing a dynamic separation.
  • the tubular element 16 slides downwards from position A to position B and, at the same time, rotates around the cylinder 13. This has the effect of rotating the feed screw 11 of the unit 1 so that a coffee dose C drops down into the impression 8.
  • the rotary cap 15 presses down and rotates on the upper part of the dose C currently being formed thus effectively and uniformly precompacting the dose C being formed so that it is uniformly distributed inside the impression 8; a paper presser 21 mounted on the element 14 holds and stabilises the filter paper strip 5 while the dose C is being compacted.
  • the blades 19 of the separator-leveller 18 continue to rotate thus separating the dose C from the feed screw 11.
  • the tubular element 16 travels upwards carrying the cap 15 of the precompactor 14 back to the home position A.
  • the impression 8 now filled with the precompacted dose C, moves forward towards another presser element (of a known type and not shown here) which completes compaction of the dose C after the conveyor 4 feeds forward by one step in the direction L.
  • the next impression 8 is now in position under the feed screw 11 ready to be filled with a new dose from the feeder unit 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)
  • Basic Packing Technique (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Tea And Coffee (AREA)

Abstract

Described is a unit (1) for feeding powdered infusion material to a machine (M) producing packs (3) made from filter material (5). The machine (M) comprises a production line (2) for making such packs (3) and consists of a conveyor (4) with mobile recesses (7) moving in a feed direction (L) designed to be covered with filter material (5) and to form impressions (8) in the filter material (5); rotary feeders (10) fitted to the unit (1) designed to feed an amount or dose (C) of the powdered infusion material into the impressions (8), and rotary precompactors (14) mounted on the rotary feeders (10) acting together with rotary feeders (10) to distribute the doses (C) uniformly inside the impressions (8).

Description

Description
Unit for feeding infusion material to a machine producing filter packs
Technical Field
This invention relates to a unit for feeding infusion material to a machine producing packs made from filter material.
In particular, the present invention can be advantageously employed to feed powdered, ground coffee to an automatic packing machine designed to produce coffee "pods" made from filter paper.
The description below makes explicit reference to this embodiment without restricting the scope of the invention.
Background Art
At the present time, feeding powdered coffee to machines which make and fill filter-paper coffee pods is performed by a unit fitted to the machine itself where the unit consists of feeder devices designed to drop an amount of coffee into a dosing chamber.
The dosing chamber is horizontal and inside has a sliding, reciprocating piston designed to push the dose of coffee dropped down by the feeders into a vertical feed tube from where the coffee drops down into a series of circular filter paper impressions; the impressions are formed by embossing a strip of filter paper on a corresponding series of circular recesses on an intermittent conveyor which forms the pod shaping and conveying line of the packing machine.
Vertical, reciprocating pressers are mounted at the feed tube and compress the coffee in the circular impressions before the impressions are covered on the top with a strip of filter paper in order to close and complete the pod.
A serious drawback to the feeding-dosing unit described above is that the powdered coffee is not distributed uniformly inside the circular pod impressions.
The principal cause of this drawback is the fact that the coffee, pushed by the piston element in the feed tube, drops down into the impressions in an uncontrolled and uneven manner and not even the action of the pressers is able to distribute the coffee uniformly in the impressions.
The result using the type of feeder-doser described above is a coffee pod which does not meet quality specifications.
This considerable drawback worsens as the operating speed of the pod maker-filler machine increases.
The aim of the present invention is to produce a feeder unit which overcomes the drawbacks cited above.
In particular, the aim of the present invention is to produce a coffee feeder unit for a packing machine that produces filter paper coffee pods of the specified quality and which operates at high production speeds.
Disclosure of the invention
The present invention describes a unit for feeding infusion material to a machine producing packs made from filter material. The machine comprises a production line for making such packs and consists of a conveyor with mobile recesses moving in the feed direction and designed to be covered with filter material in order to form impressions in the filter material. The unit is characterised in that it comprises rotary feeders designed to feed an amount or dose of infusion material into the impressions, and rotary precompactors mounted on the rotary feeders acting together with the rotary feeders to distribute the doses uniformly inside the impressions.
Brief description of the drawings
The technical characteristics of the invention, with reference to the above aims, are clearly described in the claims below and its advantages are apparent from the detailed description which follows, and from the accompanying drawings which illustrate a preferred embodiment of the invention provided merely by way of example without limiting the scope of the inventive step, and in which:
- Figure 1 is a front view, with some parts cut away and others in cross section to better illustrate certain details, of an embodiment of the feeder unit in a first operating position; - Figures 2a and 2b are enlarged views of the unit in Figure 1 as seen from the front and from above respectively;
- Figure 3 is a front view, with some parts cut away and others in cross section to better illustrate certain details, of the feeder unit in Figure 1 in a second operating position; - Figure 4 is front view of an infusion material pack filled by the feeder unit described in this invention.
Detailed description of the preferred embodiments of the invention
With reference to Figure 1, the numeral 1 indicates a feeder unit for feeding powdered, ground coffee to the production line 2 of a packing machine M producing coffee pods 3 (Figure 4) made from filter paper, the feeder unit 1 being an integral part of this machine.
The production line 2 comprises a intermittent-motion conveyor 4 moving in a horizontal feed direction L carrying a filter-paper strip 5, and having a series of modular elements 6.
Each modular element 6 has at least one, mobile circular recess 7 moving in the direction L and designed to make a corresponding circular impression 8 in the filter paper (dashed line in Figure 1) . The impression is formed, using a known embossing method not illustrated here, by pressing the strip 5 into the recess 7 in order to form the lower portion or half-shell 9 (Figure 4) of the pod 3 being formed by the machine.
Figures 1, 2a and 3 show a feeder unit 1 consisting of rotary feeders 10 in the form of a feed screw 11 rotating about a vertical axis 12 inside a hollow, tubular, cylindrical container
13 and designed to feed a specified amount or dose C of powdered coffee into the impressions 8 of the conveyor 4 of the line 2.
The cylindrical container 13 is mounted at a distance D from the conveyor 4 (Figure 1) and supports, on its outer surface, a sliding precompactor 14.
Figures 1 and 3 show the precompactor 14 which consists of a hollow, ring-shaped cap 15 fixed to a hollow, cylindrical, tubular element 16.
One end 17 of the tubular element 16 is designed to engage with the gear wheel (not shown here) of a motor unit (also not shown here) which rotates the tubular element around the cylinder 13 on special bearings and around the axis 12; the tubular element also slides vertically (arrow F in Figures 1 and 3) on the cylinder 13 between a rest position A, where the cap 15 is positioned at a distance from the conveyor 4 substantially the same as the distance D (Figure 1) , and an operating position B where the cap 15 is designed to act on the upper portion of the powdered coffee dose C fed into the pod impression 8 by the feed screw 11 in order to aid the uniform distribution of the dose C (Figure 3) by levelling it out uniformly inside the impression 8. Figures 2a and 2b show the end of the feed screw 11 where there is a separator 18 consisting of blades 19 extending radially at one end of a rotary cylinder 20 which rotates around the cylinder 13 which in turn rotates, independent of the feed screw 11 action, together with the tubular element 16 to which it is connected. The rotary blades 19 are designed to act on the coffee dose C in the impression 8 already distributed uniformly by the action of the rotary cap 15 and thereby produce a dynamic separation between the dose C and the lower end of the screw feed 11. The blades 19 are rotated together with the precompactor 14 by the tubular element 16 to which they are both connected and rotate together with the feed screw 11 to aid the flow of coffee downwards towards the impressions 8 when the feed screw 11 itself is rotating; when the feed screw 11 stops rotating, the blades 19 continue to rotate thus producing a dynamic separation.
In practice, when the filter paper impression 8 on the module 6 of the conveyor 4 is under the feed screw 11 during an operating cycle, the tubular element 16 slides downwards from position A to position B and, at the same time, rotates around the cylinder 13. This has the effect of rotating the feed screw 11 of the unit 1 so that a coffee dose C drops down into the impression 8. In position B, the rotary cap 15 presses down and rotates on the upper part of the dose C currently being formed thus effectively and uniformly precompacting the dose C being formed so that it is uniformly distributed inside the impression 8; a paper presser 21 mounted on the element 14 holds and stabilises the filter paper strip 5 while the dose C is being compacted.
When the screw feed 11 stops rotating this stops the flow of coffee powder, the blades 19 of the separator-leveller 18 continue to rotate thus separating the dose C from the feed screw 11. At the end of the cycle, the tubular element 16 travels upwards carrying the cap 15 of the precompactor 14 back to the home position A. The impression 8, now filled with the precompacted dose C, moves forward towards another presser element (of a known type and not shown here) which completes compaction of the dose C after the conveyor 4 feeds forward by one step in the direction L. The next impression 8 is now in position under the feed screw 11 ready to be filled with a new dose from the feeder unit 1.
The invention described here may be subject to modifications and variations without thereby departing from the scope of the inventive concept; all the details of the invention may be substituted by technically equivalent elements.

Claims

Claims
1. A unit (1) for feeding infusion material to a machine (M) producing packs (3) made from filter material (5) where the machine (M) comprises a production line (2) for such packs (3) consisting of a conveyor (4) with mobile recesses (7) moving in a specified feed direction (L) and designed to be covered with filter material (5) to form impressions (8) in the filter material (5) ; the unit (1) being characterised in that it comprises rotary feeders (10) designed to feed an amount or dose (C) of infusion material into the impressions (8) and rotary precompactors (14) mounted on the rotary feeders (10) and acting together with the rotary feeders (10) to distribute the doses (C) uniformly inside the impressions (8) .
2. A unit according to claim 1, characterised in that the rotary feeders (10) consist of a feed screw (11) rotating inside a hollow, tubular container (13) positioned transversely across the feed direction (L) at a fixed distance (D) from the conveyor of the production line (2); the precompactors (14) being mounted so as to rotate around the tubular container (13) and to slide on the container (13) towards and away from the operating position (B) where the precompactors (14) are in contact with at least one of the doses (C) already inside one of the impressions (8) .
3. A unit according to claim 2, characterised in that the precompactors (14) consist of a hollow, ring-shaped cap (15) fixed to a hollow, cylindrical, tubular element (16) which is designed to rotate around and slide up the cylindrical container (13) of the feed screw (11) .
4. A unit according to any of the foregoing claims from 1 to 3, characterised in that the rotary feeders (10) support other separator-leveller devices (18) fitted with rotary blades (19) designed to act on the doses (C) .
5. A unit according to claim 4, characterised in that the rotary blades (19) are designed to produce a dynamic separation between the doses (C) and the feeders (10) .
PCT/IB2005/002005 2004-07-16 2005-06-30 Unit for feeding infusion material to a machine producing filter packs Ceased WO2006008624A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2007520915A JP4741590B2 (en) 2004-07-16 2005-06-30 Powder leaching material supply unit to filter pack manufacturing machine
EP05755421A EP1786676B1 (en) 2004-07-16 2005-06-30 A machine producing filter packs comprising a unit for feeding infusion material
US10/569,736 US7614205B2 (en) 2004-07-16 2005-06-30 Unit for feeding infusion material to a machine producing filter packs
DE602005007248T DE602005007248D1 (en) 2004-07-16 2005-06-30 A FILTERSETZDRODUCTIVE MACHINE WITH ONE UNIT FOR DISPOSAL OF INFUSION MATERIAL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000442A ITBO20040442A1 (en) 2004-07-16 2004-07-16 UNIT FOR THE SUPPLY OF MATERIAL FROM INFUSION TO A MACHINE PRODUCING PACKAGES IN FILTER MATERIAL
ITBO2004A000442 2004-07-16

Publications (1)

Publication Number Publication Date
WO2006008624A1 true WO2006008624A1 (en) 2006-01-26

Family

ID=34978883

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/002005 Ceased WO2006008624A1 (en) 2004-07-16 2005-06-30 Unit for feeding infusion material to a machine producing filter packs

Country Status (11)

Country Link
US (1) US7614205B2 (en)
EP (1) EP1786676B1 (en)
JP (1) JP4741590B2 (en)
CN (1) CN100471761C (en)
AR (1) AR053089A1 (en)
AT (1) ATE396924T1 (en)
DE (1) DE602005007248D1 (en)
ES (1) ES2307186T3 (en)
IT (1) ITBO20040442A1 (en)
TW (1) TWI347911B (en)
WO (1) WO2006008624A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018100563A1 (en) * 2016-12-02 2018-06-07 Ica S.P.A. System for measuring out and cutting compacted powders

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10450097B2 (en) 2014-10-15 2019-10-22 I.M.A. Industria Macchine Automatiche S.P.A. Device and method for feeding and dosing filter bags with infusion or extraction products
US10414529B1 (en) 2018-04-17 2019-09-17 William S. Bayer Machines and components for generating beverage pods for use in single serve beverage brewing machines
CN110092016A (en) * 2019-03-25 2019-08-06 苏州文得昌包装设备科技有限公司 A kind of pack sealing integration apparatus
CN116767543B (en) * 2023-08-16 2023-10-20 常州佰辰新材料有限公司 Self-weighing device for preparing flame-retardant epoxy powder

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WO1999047423A2 (en) * 1998-03-13 1999-09-23 Molins Plc Method and apparatus for packaging flowable material using moving web packaging material
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US2603927A (en) * 1947-01-13 1952-07-22 Harry J Kurrus Packaging apparatus
EP0144623A2 (en) * 1983-10-18 1985-06-19 ILLYCAFFE S.p.A. Machine for making a double strip enclosing packets of ground coffee
WO1999047423A2 (en) * 1998-03-13 1999-09-23 Molins Plc Method and apparatus for packaging flowable material using moving web packaging material
EP0943544A1 (en) * 1998-03-20 1999-09-22 Dima S.R.L. A preforming device for machines that make and package pods containing products for infusion
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Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO2018100563A1 (en) * 2016-12-02 2018-06-07 Ica S.P.A. System for measuring out and cutting compacted powders
RU2722042C1 (en) * 2016-12-02 2020-05-26 ИКА С.п.А. System for dispensing and separating pressed powders
US11286071B2 (en) 2016-12-02 2022-03-29 Ica S.P.A. System for measuring out and cutting compacted powders

Also Published As

Publication number Publication date
DE602005007248D1 (en) 2008-07-10
TWI347911B (en) 2011-09-01
CN100471761C (en) 2009-03-25
EP1786676A1 (en) 2007-05-23
US20080196359A1 (en) 2008-08-21
JP2008506598A (en) 2008-03-06
ATE396924T1 (en) 2008-06-15
AR053089A1 (en) 2007-04-25
CN1842468A (en) 2006-10-04
ITBO20040442A1 (en) 2004-10-16
TW200604059A (en) 2006-02-01
EP1786676B1 (en) 2008-05-28
US7614205B2 (en) 2009-11-10
JP4741590B2 (en) 2011-08-03
ES2307186T3 (en) 2008-11-16

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