DE60010112T2 - ARRANGEMENT AND METHOD FOR MANUFACTURING SINGLE PIPES - Google Patents

Abstract

The invention concerns an installation for making individual pre-measured tablets (1) comprising, between two sheets of filter paper, one below, the other on top, a dose (4) of product (5) to be infused. The invention is characterised in that means for depositing a dose (4) in each cup are provided and consist of one or several assemblies (10) formed by: a reserve compartment (11) for the product to be infused (5) provided with an outlet (12) for delivering one dose; a sliding device 12 located under the reserve compartment (11) and provided with a hole for receiving (14) the dose (4), said sliding device being adapted to carry the dose to ejection means (15) by a translation movement. The invention also concerns a method implemented by said device. The invention is applicable to pre-measured tablets of ground coffee.

Description

The The present invention relates to a plant for the production of individual Dosage units. It further relates to a method which is described in this Plant can be used.

The The invention relates to the preparation of dosage units which between two filter paper sheets a helping of the one to brew Include products.

The to brew Product may be ground coffee in a preferred embodiment or any other product, e.g. Tea, his.

The The invention described herein may include the preparation of the dosage units as in the earlier Patent Application WO9507041 filed by the Applicant. However, this application is not limiting to individual dosage units.

It are already various systems for the production of individual dosage units known.

In In this connection, the document EP-A-225494 describes a device for introducing a serving of one to brew Substance in pockets on a lower filter paper tape, these being Bags are covered with an upper band of filter paper and then welded and so packages form, which contain the substance in the form of a continuous Parcel tape. This Device owns a fixed table on the step by step a series of Moving devices in the form of relatively shallow depressions, each a substantially square plate with a recess with rounded edges in the middle and the bottom of the recess has holes, through which a vacuum can be applied.

The presented in this description Device is aiming Above all, the movement of the dosage units during their Improve manufacturing and beating this is a chain-like system for the formation of depressions in the lower filter paper band. On the other hand, that is stated in this citation featured device a somewhat advantageous dosing and application process for the coffee powder on.

It can namely simultaneously produced an insufficient number of dosage units be what productivity the plant is contrary.

Out Patent EP-A-0773160 is also a machine known for the production of coffee powder bags, which has a fixed Has contact surface, on the one supply chain with a certain number of flat, dish-shaped devices gradually forward is moved, each of these devices from an approximately quadrangular plate with a central recess with rounded edges. This device owns one or more fixed dosing tanks, the bottom of which with a Pair of through holes is provided whose diameter is equal to the volume of one or more lower paper bands The amount of coffee powder to be applied corresponds to that for a Pouch necessary serving pose, as well as a step-by-step rotating distributor disc having a plurality of pairs of holes arranged at angular intervals is provided that at each rotational movement in each case a pair of holes the mentioned hole pair senkrecnt in the bottom of said dosing tank senkrecnt across from stands.

Around to allow an improved dosage, this suggests Device one Turntable for dosing and for applying the portion in the recess formed in the lower filter paper sheet. however can with this system only two portions of coffee applied simultaneously become.

Also leading to a significant restriction productivity.

In the patent WO-A-92 20579 is a device for outputting a Portion of chamomile shown for packaging in sachets. It reveals that a movable plate with a hole for receiving a predetermined Portion and for disposal to another post is present.

This System with step disc leads a translational movement, which is independent of an ejection piston is what makes the synchronization of the device considerably complicated.

Also suitable This device is quite specific for chamomile flowers, which are not the case powdery Substances (e.g., coffee powder) encountered, i. Leaks or limited compressibility, occur.

The The type of packaging to be realized is also quite different, since it is to different extraction processes of the flavoring is (infusion and not forced leaching).

The The present invention has for its object the drawbacks of the current one Eliminate systems.

she beats For this a plant and a manufacturing process for individual dosage units which is particularly advantageous.

The invention has numerous improvements which improve the quality and productivity of the Improve production of the dosage units.

One The primary purpose of the invention is mass production dose units in installations where several units of can be made in parallel. For this purpose, the plant has the advantage of suitable means for dosing several Having portions which are simultaneously on the lower filter paper sheet, at elevated reliability and secure synchronization of the moving components in one Apply series.

One Another purpose of the invention is to improve the compression and filling the filter unit. This can reduce the weight of the filter unit introduced coffee powder are kept constant.

One Another purpose of the invention is that of the product to be brewed enclosing Sheets of filter paper before tearing to preserve by the filter paper sheet before mounting a certain Freedom of movement and deformation is left.

Also allowed the invention the preparation of high stiffness dosage units, because a gain can be stored in the scope of the filter unit.

By Interposing a reinforcing tape as a stiffening element between the two filter paper sheets is Furthermore a good locomotion and good positioning of the dosage units during the Production achieved.

The Invention allows Continue to store the coffee or other product under best conditions, after the formation of the filter unit of the entire oxygen present in the filter unit from the portion of the product to be brewed is sucked off.

Further Purposes and benefits will become apparent in the course of the description below presents, which serves only as a stop.

• – Zuführungseinrichtungen für die oberen und unteren Filterpapierblätter,
• – Mittel zum Transport und zur Bildung von Vertiefungen in dem unteren Filterpapierblatt,
• – Mittel zum Einbringen einer Portion des zu brühenden Produkts in jeder Vertiefung
• – und den zugehörigen Fortbewegungsmittel für die Dosiseinheiten während der Fertigung, gekennzeichnet dadurch, dass:
• 1. – die Mittel zum Einbringen einer Portion in jede Vertiefung aus einer oder mehreren Baugruppen bestehen, gebildet aus: – einem Reserveabteil des zu brühenden Produkts mit einer Ableitung zur Ausgabe einer Portion, – einer Schiebervorrichtung unter dem Reserveabteil, dessen Schieber mit einer Aufnahmeöffnung für die Portion versehen und geeignet ist, die Portion mit einer translatorischen Bewegung zu den Ausstoßmitteln mit Hubkolben zu bewegen.
• 2. – eine einzige Motorwelle zum Antrieb des Schiebers und des Kolbens auf ihren Translationsbewegungen vorhanden ist sowie Mittel zur Bewegungsübertragung zwischen der Welle einerseits und dem Schieber und dem Kolben andererseits, sowie dadurch, dass – die Motorwelle senkrecht zur Translationsrichtung des Kolbens und des Schiebers steht, – die Kraftübertragungselemente zwischen der Motorwelle und dem Kolben aus mindestens einem auf der Motorwelle montierten Nocken bestehen, der durch sein Profil mit den Ausstoßmitteln verbunden ist, – die Kraftübertragungselemente zwischen der Motorwelle und dem Schieber mindestens ein System besitzen, bestehend aus – einem auf die Motorwelle montierten Nocken, – einem Hebel, der an einem Ende formschlüssig und schwenkbar mit dem Profil des Nockens und am anderen Ende mit einer den Schieber antreibenden Stange verbunden ist, – einem Gelenk des Hebels, das zwischen dessen beiden Enden sitzt und die oszillierende Bewegung gewährleistet, – wobei das Profil der Nocken eine asymmetrische Form besitzt, die der gewünschten Amplitude der Translationsbewegung des Schiebers und des Kolbens entspricht.

The present invention relates to a plant for producing individual dosage units in which a portion of the product to be brewed, for example ground coffee, is enclosed between two filter paper sheets, a lower and an upper one. The named plant owns:

• Feeding means for the upper and lower filter paper sheets,
• Means for transporting and forming depressions in the lower filter paper sheet,
• - means for introducing a portion of the product to be brewed in each well
• - and the associated means of transport for the dosage units during manufacture, characterized in that:
• 1. - the means for introducing a portion in each well consist of one or more assemblies, formed of: - a reserve compartment of the product to be brewed with a discharge for dispensing a portion, - a slider device under the reserve compartment, the slide with a receiving opening for the portion provided and is adapted to move the portion with a translational movement to the ejection means with reciprocating.
• 2. - A single motor shaft for driving the slider and the piston is present on their translational movements and means for transmitting motion between the shaft on the one hand and the slider and the piston on the other hand, and in that - the motor shaft is perpendicular to the translation direction of the piston and the slider The force transmission elements between the motor shaft and the piston consist of at least one cam mounted on the motor shaft, which is connected to the ejection means by its profile, the force transmission elements between the motor shaft and the slider have at least one system consisting of one on the Motor shaft mounted cams, - a lever which is positively and pivotally connected at one end to the profile of the cam and at the other end with a slide driving rod, - a hinge of the lever, which sits between the two ends and ensures the oscillating movement et, - wherein the profile of the cams has an asymmetrical shape corresponding to the desired amplitude of the translational movement of the slider and the piston.

• – die Baugruppe bzw. Baugruppen sind entlang einer senkrecht zur Auflage und den Mitteln zur Bildung der Vertiefung stehenden Richtung geradlinig verschiebbar angeordnet und bewegen sich zwischen einer angehobenen Stellung und einer Ausstoß-Stellung in der die Auflage und die Mittel zur Bildung der Vertiefungen berührt werden,
• – der geradlinige Antrieb der Baugruppe erfolgt durch die Motorwelle und wird durch die Kraftübertragungselemente auf die Baugruppe übertragen,
• – die Kraftübertragungselemente zwischen der Motorwelle und der Baugruppe bestehen mindestens aus einem auf die Motorwelle montierten Nocken, der durch sein Profil mit der Baugruppe verbunden ist,
• – die Ableitung besitzt auf ihrem Umfang eine Auskleidung, die mit dem Reserveabteil fest verbunden ist und die eine Leitung umschließt, die an einer Feder innerhalb der Auskleidung aufgehängt ist und dessen unteres Ende auf dem Schieber aufliegt, wodurch eine Anpassung an mehrere Schieberhöhen möglich ist.
• – der Reserveabteil besitzt oberhalb der Ableitung mindestens eine rotierend angetriebene Schaufel.
• – der Reserveabteil besitzt ein eingebautes Vorverdichtungs-Stellelement, um das Füllen des Lochs zu erleichtern und ein erstes Verdichten der Portion vorzunehmen,
• – der Versorgungsdruck des Vorverdichtungs-Stellelements ist einstellbar, um die Dichte der Portion angemessen einzustellen,
• – sie besitzt Wägevorrichtungen für die Filtereinheit, um rückwirkend den Versorgungsdruck des Vorverdichtungs-Stellelements zu kontrollieren und das vorgegebene Gewicht einzuhalten,
• – sie besitzt:
• – Zuführeinrichtungen für ein Verstärkungsband, das zwischen die beiden Filterpapierblätter eingelegt werden kann,
• – Ausschnittmittel für das Verstärkungsband, um darin Ausschnitte mit einer Form vorzunehmen, die auf die vor den Vertiefungen ankommenden Portionen abgestimmt ist.
• – Mittel zum Zusammenfügen des Verstärkungsbandes mit den Filterpapierblättern, welche die Schaffung einer versteifenden Verstärkung der Filtereinheit ermöglichen.
• – Das Verstärkungsband ist ein Kartonband, dessen beide Seiten mit einer thermoplastischen Folie bedeckt sind und die Mittel zum Zusammenfügen sind Heizköpfe, die das Schmelzfixieren des Kartonbandes auf die Blätter ermöglichen.
• – Sie besitzt weiterhin zusätzliche Vorschubeinrichtungen zur Erhöhung der Vorschubgeschwindigkeit eines oder beider Filterpapierblätter relativ zum Verstärkungsband vor dem Zusammenfügen, um so ein Entspannen des Filterpapierblattes in bezug auf das Verstärkungsband zu bewirken, wobei dieses Entspannen dazu dient, das Filterpapier während des Zusammenfügens keinen zu hohen Spannungen auszusetzen.
• – Sie besitzt ebenfalls Vorrichtungen, um das oder die Filterpapierblätter ganz oder zumindest teilweise in der Nähe der Vertiefungen in Fortbewegungsrichtung durchzuschneiden, so dass während des Zusammenfügens im Filterpapier entstehende Spannungen begrenzt werden.
• – die Ausschnittmittel erlauben außerdem die Schaffung von Löchern, die in Fortbewegungsrichtung des Verstärkungsbandes in gleichmäßigen Abständen in einer Reihe liegen, wobei die Anlage eine oder mehrere Zahntrommeln besitzt, die mit den Löchern in der Weise zusammenwirken, dass das Verstärkungsband keine unerwünschte Bewegung ausführt.
• – Die seitlichen Positionen der Löcher im Verstärkungsband und den Spalten in den Filterpapierblättern sind identisch.

The plant has the following possible embodiments:

• The subassemblies or subassemblies are arranged so as to be linearly displaceable along a direction perpendicular to the support and the means for forming the depression, and move between a raised position and an ejection position in which the support and the means for forming the depressions are touched,
• The rectilinear drive of the assembly takes place through the motor shaft and is transmitted by the force transmission elements to the assembly,
• - The power transmission elements between the motor shaft and the assembly consist of at least one mounted on the motor shaft cam, which is connected by its profile with the assembly,
• - The derivative has on its periphery a lining which is fixedly connected to the reserve compartment and which encloses a line which is suspended on a spring within the liner and the lower end rests on the slider, whereby an adaptation to a plurality of slide heights is possible.
• - The reserve compartment has above the discharge at least one rotating driven blade.
• The reserve compartment has a built-in precompression actuator to facilitate the filling of the hole and to perform a first compression of the portion,
• The supply pressure of the precompression control element is adjustable in order to adjust the density of the portion appropriately,
• It has weighing means for the filter unit to retroactively control the supply pressure of the precompression actuator and to maintain the predetermined weight,
• - she owns:
• Feeding means for a reinforcing band which can be inserted between the two filter paper sheets,
• - Cutting means for the reinforcing tape to make therefrom cutouts with a shape that is matched to the arriving in front of the wells portions.
• - Means for joining the reinforcing strip with the filter paper sheets, which allow the creation of a stiffening reinforcement of the filter unit.
• - The reinforcing tape is a cardboard tape whose both sides are covered with a thermoplastic film and the means for assembly are heating heads, which allow the fusing of the cardboard tape to the sheets.
• - It also has additional feed means for increasing the feed rate of one or both filter paper sheets relative to the reinforcing tape prior to assembly, so as to cause a relaxation of the filter paper sheet with respect to the reinforcing tape, this relaxing serves the filter paper during assembly not too high voltages suspend.
• - It also has devices to cut through the filter paper sheets or all or at least partially in the vicinity of the recesses in the direction of travel, so that during assembly in the filter paper resulting stresses are limited.
• - The cutting means also allow the creation of holes in the direction of travel of the reinforcing strip in even intervals in a row, the system has one or more toothed drums, which cooperate with the holes in such a way that the reinforcing tape performs no unwanted movement.
• - The lateral positions of the holes in the reinforcing strip and the gaps in the filter paper sheets are identical.

The Invention also relates a manufacturing process for individual dosage units in which a portion of a product to be brewed, for Example coffee powder, between two filter paper sheets, one upper and a lower, is included and this manufacturing process from the plant according to the invention according to claim 15 executed can be.

• – Vor dem Ausstoßen der Portion wird die Schiebervorrichtung auf eine Ebene abgesenkt, bei dem sie die Vertiefungen berührt, sie wird nach dem Ausstoßen der Portion wieder angehoben,
• – beim Überführen in die Aufnahmeöffnung wird das zu brühende Produkt vorverdichtet,
• – der Vorverdichtungsdruck wird auf eine angemessene Dichte der Portion eingestellt,
• – die hergestellten Dosiseinheiten werden alle oder teilweise gewogen,
• – der Vorverdichtungsdruck wird entsprechend den zwischen den einzelnen Wägungen festgestellten Abweichungen geregelt und das Sollgewicht festgelegt,
• – es wird ein Verstärkungsband zugeführt,
• – in diesem Verstärkungsband werden Ausschnitte vorgenommen, deren Form derjenigen der Portionen angemessen ist,
• – die Position dieser Ausschnitte wird so eingestellt, dass sie den Vertiefungen gegenüber liegen,
• – das Verstärkungsband wird zwischen die beiden Filterpapierblätter eingelegt, die dann zusammengefügt werden,
• – das Verstärkungsband wird beidseitig mit einer thermoplastischen Folie bedeckt,
• – das Verstärkungsband und die beiden Filterpapierblätter werden durch Schmelzfixieren zusammengefügt,
• – vor dem Zusammenfügen wird das Filterpapierblatt rascher angetrieben als das Verstärkungsband, um das Filterpapier locker zu fassen und zu hohe Spannungen im Filterpapier während des Zusammenfügens zu vermeiden.
• – die Filterpapierblätter werden vor dem Zusammenfügen in der Nähe der Vertiefungen und in Fortbewegungsrichtung zumindest teilweise eingeschnitten.

The method has several embodiments, two of which are described below:

• Before the ejection of the portion, the slider device is lowered to a level at which it touches the recesses, it is raised again after the ejection of the portion,
• When transferring into the receiving opening, the product to be brewed is precompressed,
• The pre-compression pressure is adjusted to an appropriate density of the portion,
• The dosage units produced are all or partially weighed,
• - the precompression pressure is controlled in accordance with the deviations found between the individual weighings and the target weight is determined,
• - It is supplied to a reinforcing tape,
• - In this reinforcing band cutouts are made, whose shape is appropriate to that of the portions,
• The position of these cutouts is adjusted to face the depressions,
• - the reinforcing tape is inserted between the two filter paper sheets, which are then joined together,
• - The reinforcing tape is covered on both sides with a thermoplastic film,
• The reinforcing band and the two filter paper sheets are joined together by fusing,
• - Before joining the filter paper sheet is driven faster than the reinforcing tape to loosely grasp the filter paper and to avoid excessive stress in the filter paper during assembly.
• - The filter paper sheets are at least partially incised in the vicinity of the wells and in the direction of travel prior to assembly.

The attached Drawings are for reference only and are not restrictive in any way. she represent a preferred embodiment of the invention and serve the easier understanding.

The 1 shows in section a part of the system according to the invention. Several production phases of the filter unit can be seen.

The 2 shows the preparation of individual dosage units starting from a lower filter paper sheet, an upper filter paper sheet and an intermediate reinforcing ribbon.

The 3 shows an overview of the system according to the invention in longitudinal section.

The 4 shows a preferred embodiment of the drive elements of the ejection means.

The 5 is a sectional view along the line AA.

The 6 shows the possible movement of the serving for applying a serving assembly.

The 7 is a partial side view of the 6 ,

The 8th shows the translational movement of the slider in a preferred embodiment for this operation.

The 9 is a partial side view.

A individual filter unit, for example with a portion of coffee powder, generally consists of two filter paper sheets, one lower and one upper, between which the one to brew Product is included.

These Dosing units are made from leaves, in general from in the course of manufacturing continuously unwound belts formed.

In this sense, the shows 1 the production of dosage units 1 that a portion 4 of the product to be brewed 5 enclose.

This portion 4 is between two filter paper sheets, one lower 2 and an upper one 3 included, as in 2 shown.

As will be described in detail below, a reinforcing member may be used to increase the rigidity of the perimeter of the individual filter unit 1 serve. Such a reinforcement band 24 is also in the 2 shown.

In general, has a plant for the production of the filter unit 1 feeding 6 for the leaves 2 and 3 ,

As in 3 shown, these delivery means 6 consist of several drums for storage and unwinding of the band-shaped filter paper 2 . 3 are suitable.

After unwinding, the bottom filter paper sheet becomes 2 deformed to indentations in its surface 9 to form, these depressions 9 are suitable, a portion 4 of the product to be brewed 5 take.

As a base and for forming the depression serving means, as shown in the figures. The application of the lower filter paper sheet 2 by a pneumatic or mechanical process on a surface serving for shaping can be done in this context by any conventional method.

Around while the shaping to move the dosage units in the course of production, owns the plant as well Drive elements.

As in 3 shown, these drive elements from a circulating belt 21 consist of a series of blocks 7 for receiving the wells 9 with the help of a recess 8th allows. The thus formed chain of blocks 7 allows a continuous progression of the dosage units 7 in the course of production.

The plant according to the invention has special facilities for introducing a portion 4 into every well 9 ,

For this purpose, these means may consist of one or more modules, which in 3 , Number of places 10 are shown.

The 1 shows a more detailed view of such assemblies 10 ,

These assemblies, the number of which is not limited to the simultaneous and parallel formation of the portions 4 Each one has a reserve compartment 11 as it is also in 1 is shown.

The reserve compartment 11 ensures the storage of the product to be brewed 5 , It also allows the dispensing of a quantity of the product to be brewed 5 to the slider device 12 about a derivative 22 ,

The slider device 12 has a receiving opening 14 for the portion 4 facing the derivative 22 of the reserve compartment 11 is arranged.

As in 1 shown, has the receiving opening 14 the same shape as the final portion to be formed 4 ,

The slider device 12 has as an essential element the slider 13 , after inserting the portion 4 in the receiving opening 14 can be moved in a straight line.

Through this rectilinear movement, the receiving opening 14 the opening 24 in the assembly 10 opposite to the portion 4 into the depression 9 in the lower filter paper sheet 2 leave.

It is therefore a reciprocating motion of the slider 13 ,

The use of multiple assemblies 10 or, in a preferred embodiment, a single assembly 10 with several groups of receiving openings 14 , Derivatives 22 and openings 23 , allows the simultaneous production of several portions and their parallel output to the lower filter paper sheet 2 ,

The 2 shows this possibility of production, which ensures high productivity.

The ejection means 15 in 1 serve to eject the portion 4 from the receiving opening, if this before in the lower part of the assembly 10 formed opening 23 standing in the hollows 9 empties.

The ejection means 15 be from the piston 35 formed, which can move axially between a raised rest position and a lowered position and thereby through the opening 23 to push the whole portion out, to condense and shape it.

The slider 13 and the piston 35 be from the same motor shaft 51 driven, which causes a sufficiently synchronized movement to avoid blocking or other malfunction.

Furthermore, means for transmitting motion between the motor shaft 51 and the slider 13 or the piston 35 intended.

It is a cam system 37 . 38 that on the motor shaft 51 is mounted.

Like that 4 and 5 it can be seen, is the rectilinear movement of the piston 35 through the cam 37 generated, on whose profile a role 41 running, with the piston 35 over a frame 40 connected is. This cam converts the rotational movement of the shaft 51 in a known manner in a rectilinear motion of the piston 35 around.

Regarding the slider 13 , that drives on the motor shaft 51 mounted cams 38 a lever at one end 42 on, about a role 44 with the profile of the cam 38 connected is.

At its second end is the lever 42 with a pole 42 articulated, directly, or via a connector 48 , on the slider 13 is attached.

The float's movement 42 during the rotation of the motor shaft 52 and the cam 38 gets through a joint 43 generated.

The amplitude of the reciprocation of the lever 42 and thus the translational movement of the slider 13 is advantageously limited front and rear by stops.

The motor shaft 51 is the output of any conventional engine, especially an electric motor.

For an optimal introduction of the portion 4 in a recess 8th To ensure and avoid a sudden drop, it is beneficial to the assembly 10 (at least in their recesses 8th lower parts) on ejection to a level at which contact occurs.

These are the modules 10 (or is the assembly 10 ) with respect to the direction of the support and the formation of the depressions 9 arranged vertically movable, which is also the translation direction of the piston 35 equivalent.

Like the slider 13 and the piston 35 , the assembly can 10 through the motor shaft 51 and a motion transmission system are driven with cams.

To show the 6 and 7 a cam 39 by a hinged roller running over his profile 49 a pole 50 drives with the assembly 10 is firmly connected. Of course, the rod is 50 just as an example of a motion transfer to the assembly 10 to understand.

From the 4 to 9 It can be seen that the asymmetric cam profiles are appropriate to the movements to be generated, in particular, in terms of their amplitude. Incidentally, the angular position relative to the cams determines the successive movements of the slider 13 , the piston 35 and the assembly 10 ,

The 4 to 9 show the case of an assembly 10 in the raised position, a piston 35 at rest and a slide half way.

The cam systems described above 37 . 38 . 39 at both ends of the motor shaft 51 are advantageously applied twice to effect a more favorable force distribution.

Likewise, it is advantageous that one or more blades 52 approximately perpendicular (in the direction of the axis of the receiving opening 14 ) are set in rotation. The shovel 52 near the hole 14 passes, distributes the supplied product into the hole 14 ,

The 6 shows an embodiment of a blade 52 and their drive via rotating pinions and shafts.

The present system also allows, in a variant, portions 4 to produce different height by adjusting the height of the slider 13 will be changed.

To adapt to these changes in height and for good circulation on the slide 13 must be the derivative 22 have a special shape.

In this framework owns the derivative 22 , as in 6 represented a lining 55 , preferably in the form of a ring (for portions 4 with annular profile).

The lining 55 serves as a guide for a adapted to her and slidable in her tube 53 ,

One shoulder 56a on the lining 55 , one shoulder 56b at the tube 53 and a compression spring 54 cause the suspension of the tube 43 which is at the top of the slider 13 is applied. Depending on its height, the compression spring 54 more or less compressed.

As shown, the precompression actuator is located 16 over the derivative 22 ,

In this way, the precompression actuator 16 be pressed to fill the receiving opening 14 to facilitate and possibly a first pre-compression of the portion 4 of the product to be brewed 5 make.

To the function of these assemblies 10 to further improve, and a reasonable density of the serving 4 can achieve the supply pressure of the precompression actuator 16 be adjustable.

By compacting the product to be brewed 5 is it possible, the final specific weight of the portion reached 4 to increase.

On this way it is also possible to continuously control the weight of the prepared dosage units.

Therefore, the means of weighing possesses 19 consisting of any conventional device containing a weight measurement signal 20 can spend. This weight measurement signal 20 can be transmitted and from a programmable automaton 18 are processed. The transmission of this signal is in 1 shown.

The programmable machine may, if necessary after statistical processing, the supply pressure of the precompression point element 16 influence and regulate this according to the predetermined weight.

As mentioned above, the individual dosage units 2 one between the two filter paper sheets 2 and 3 on the circumference of the portion 4 of the product to be brewed 5 Have inserted reinforcing element.

For this purpose, the system according to the invention, the supply and use of a gain band 24 allow, which is shown in figure.

In a preferred embodiment is the reinforcement band a cardboard tape, the two sides with a thermoplastic film is covered.

To such a reinforcement band 24 use, the plant has feeders 25 the reinforcing tape, for example, in a similar manner as the feeders of the upper and lower filter paper sheets 2 . 3 can be trained.

The invention further comprises cutting means 26 for the reinforcement band 24 on to cutouts in it 27 with one of the portions 4 appropriate form. These cutouts 27 are compared to those in the lower filter paper 2 formed depressions 9 positioned so that they are the portion 4 surround.

These can usual cut-out means 26 , In particular, methods by punching, are used.

The system also has means for joining the reinforcing band 24 with the filter paper sheets 2 and 3 ,

The joining preferably takes place on the circumference of the portion 4 in the area of the reinforcement band 24 ,

In a preferred embodiment, in 3 is shown, the means to Zu exist assembled from heating heads 28 that depends on the size of the serving 4 Apply and by fusing the filter paper sheets 2 . 3 and the reinforcement band 24 can join together.

To achieve efficient fusing, there is the reinforcing tape 24 preferably from a cardboard strip covered on both sides with a thermoplastic film.

In the preparation of the dosage units 1 , the filter paper sheets become 2 and 3 deformed and thus heavily used. This is particularly the case in the production of the wells 9 in the lower filter paper sheet 9 and when covering the portion 4 through the upper filter paper sheet 3 that adhere to the arched shape of the serving 4 must create.

To prevent the filter paper sheets 2 and 3 tear by these loads, according to the invention additional feed devices 29 to be available.

The additional feed devices 29 represented in 3 , For example, in the form of a drive roller, are suitable, the speed of the filter paper tape 2 or 3 relative to that of the reinforcing tape 24 increase before joining.

As you can see, is thus after the additional feed devices 29 a relaxation 30 of the filter paper sheet 2 generated, resulting in excessive stresses in the formation of the wells 9 be avoided.

The additional Allow feed devices the limitation of the filter paper sheets in the direction of forward movement of these leaves applied tensile stresses.

In order to obtain the same result in the direction transverse to the direction of movement, the invention may further comprise means for at least partially cutting the filter paper sheet or sheets 2 . 3 near the pits 9 have. As in 2 As a dotted line is shown, the cuts made 31 in the direction of forward movement of the leaves and provide the filter paper sheets 2 and 3 additional in freedom of movement

For example, the means used for cutting may consist of a roller having cutting edges on its edges resting on the filter paper sheets 2 and 3 to press.

When using a reinforcing tape 24 can the cutting means 26 also have elements that the reinforcing tape 24 perforate at regular intervals. This will make holes in a row 32 formed in the direction of travel of the reinforcing strip 24 evenly distributed, as in 2 is shown.

The holes 23 can with one or more tooth drums 33 interact, leaving the teeth in the holes 32 engage in order to evenly position and possibly the drive of the reinforcing strip 24 to ensure.

In a preferred embodiment, the holes arranged in series act 32 with the cuts 31 in the upper and lower filter paper sheets 2 . 3 together. In this way, the teeth of the toothed drums can 33 in the holes 32 be introduced without the filter paper sheets 2 . 3 must be perforated.

According to another embodiment, the system shown here has a spray head 34 for introducing an inert gas into the portion 4 of the product to be brewed 5 ,

In this way, the injected inert gas displaces the in the portion 4 existing residual oxygen. This ensures better preservation of the coffee with optimum flavor quality. Preferably, nitrogen is used as the inert gas.

Of the Functional sequence of the system according to the invention according to the manufacturing method according to the invention can be done in the steps described below.

There are initially two filter paper sheets 2 . 3 supplied from the storage devices.

In the first filter paper sheet, the lower sheet 2 , become pits 9 shaped. During this step, the filter paper sheet becomes 2 for example, from a circulating belt 21 supports a number of blocks 7 owns that with recesses 8th are provided, in which the wells 9 Insert.

If the pits 9 are formed, a portion 4 of the product to be brewed 5 filled.

Then be the dosage units 1 in the course of manufacturing the next manufacturing steps fed.

• – das zu brühende Produkt wird in einem Reservebehälter 11 gelagert,
• – eine Portion 4 wird von diesem Reservebehälter 11 in eine Aufnahmeöffnung 14 geleitet, die in einer Schiebervorrichtung 13 eingebracht ist,
• – anschließend macht der Schieber 12 eine Translationsbewegung, um die Portion 4 aus der Aufnahmeöffnung 4 an einen Ort zu bringen, von wo aus sie in die Vertiefung 9 ausgestoßen wird. Dieser Ort kann aus einer Öffnung 23 im unteren Bereich der Baugruppe 10 bestehen.

Regarding the application of a portion 4 of the product to be brewed 5 , the invention is characterized by the following steps:

• - the product to be brewed is stored in a reserve tank 11 stored,
• - a portion 4 will from this reserve tank 11 in a receiving opening 14 passed in egg ner slider device 13 is introduced,
• - then the slide makes 12 a translational movement to the portion 4 from the receiving opening 4 to bring to a place from where they are in the depression 9 is ejected. This place may be from an opening 23 in the lower part of the module 10 consist.

The ejection and optionally the compression of the portion 4 can with the help of the ejection means 15 in the form of a reciprocating piston 35 respectively.

To the formation of the portion 4 in the receiving opening 14 To facilitate, the product to be brewed 5 be pre-compressed during its forwarding.

In addition, the precompression pressure generated by a precompression actuator 16 is applied, adjusted so that the density of the portion 4 follows a desired setpoint.

In this sense, it is particularly advantageous to feedback the weight measurement of the portion 4 to provide the product to be brewed.

For this purpose, the dosage units produced 1 all or part weighed and the resulting measurement signal 20 processed so that the precompression pressure is controlled according to the detected deviations between the weighings and the specified setpoint.

According to the embodiment in which the dosage units 1 a stiffening element on the circumference of the portion 4 own, a gain band is supplied.

Subsequently, a cutout in the stiffening band 24 made, with the shape of the cutouts of the shape of the portions is adjusted.

Then the cutouts are realized in the lower filter paper sheet 2 positioned wells exactly opposite.

You can then use the reinforcing tape 24 on the bottom filter paper sheet 2 and then place the top filter paper sheet on top of the reinforcing tape 24 hang up.

This is the reinforcing sheet 24 between the two filter paper sheets 2 . 3 inserted, which are then joined together.

Preferably, the step of superimposing the reinforcing tape takes place 24 and the lower filter paper sheet 2 before applying the portion 4 of the product to be brewed 5 , However, this solution is not considered restrictive.

In a preferred embodiment, the reinforcing tape has two sides covered with a thermoplastic film to wrap it with the two filter paper sheets 2 . 3 to be connected by fusing.

The following are the sequential manufacturing steps of the filter unit 1 summarized.

First, a bottom filter paper sheet 2 with the help of the feeder 6 fed.

If a reinforcement band 24 is used, this is also the means 25 fed, which may be of similar nature.

During its feed will be in the reinforcement band 24 with the help of the cutting means 26 cutouts 27 performed.

The reinforcement band 24 and the bottom filter paper sheet 2 are then exactly superimposed.

Preferably, this becomes the reinforcing tape 24 opposite filter paper sheet 2 driven at a slightly higher speed. This causes a relaxation 30 , in the 3 is shown before the joining step.

Then the pits become 9 in the surface of the lower filter paper tape 2 brought in.

Subsequently, the joining takes place, in particular by fusing, the filter paper sheet 2 and the reinforcing tape 24 ,

This assembly is moved to the means which is a serving 4 of the product to be brewed 5 can muster.

This application is carried out by discharging a quantity of the product to be brewed 5 in a receiving opening 14 that in a slider 12 is trained. This slider 12 performs a rectilinear motion to an ejection zone where the entire portion 4 into the depression 9 is introduced. It is beneficial to the assembly 10 to lower a portion 4 near the depression 9 eject.

Subsequently, the filter unit 1 with the upper filter paper sheet 3 covered.

Serve for this purpose feed 6 , which the supply of the upper filter paper sheet 3 ensure over the already partially produced filter unit.

By placing a heating head 28 on the upper filter paper sheet 3 , its deformation is ensured so that it matches the shape of the surface of the portion 4 and on the size of the portion 4 is joined together.

Then you can the residual oxygen present in the portion by initiating a Inert gases such as nitrogen are displaced.

In this way, a blanket of dosage units 1 formed, which can be used after the separation. This separation can be carried out according to the manufacturing steps described above, so as to realize individual dosage units.

As already described, dose units are manufactured in series, the lie in the direction of the feed direction of the system in a row.

Preferably, for the dosage units presented here 1 the simultaneous production of several lines or series produced.

The 2 shows the preparation of 4 dose units simultaneously.

1.

dosage units

Second

lower filter paper

Third

upper filter paper

4th

portion of the one to be brewed product

5th

To brühendes product

6th

feeding of the filter paper

7th

blocks

8th.

recess

9th

deepening

10th

module

11th

reserve container

12th

slider device

13th

pusher

14th

receiving opening

15th

ejection means with pistons

16th

Vorverdichtungsstellelement

17th

Solenoid valves, controlled

18th

programmable machine

19th

medium for weighing

20th

Weight measuring signal

21st

circulating belt

22nd

derivation

23rd

opening

24th

reinforcing tape

25th

feeding for reinforcing tape

26th

cut means

27th

neckline

28th

heating head

29th

additional feed devices

30th

Relaxation

31st

column

32nd

holes

33rd

sprocket

34th

spray head

35th

piston

37th

cam

38th

cam

39th

cam

40th

frame

41st

role

42nd

lever

43rd

joint

44th

role

45th

pole

48th

joint

49th

role

50th

pole

51st

motor shaft

52nd

shovel

53rd

tube

54th

feather

55th

lining

56a, 56b

shoulder

Claims (22)

Plant for the production of dosage units ( 1 ) between two filter paper sheets, a lower one ( 2 ) and an upper ( 3 ), one dose ( 4 ) of a product to be brewed ( 5 ), for example coffee grounds, and consisting of the following components: a) feeding devices ( 6 ) for the upper and lower filter paper sheets ( 2 . 3 ), b) means of carrying and forming a well ( 9 ) in the lower filter paper sheet ( 2 ), c) means for depositing a dose ( 4 ) of the product to be brewed in each well ( 9 ) and d) means for advancing the dosage units ( 1 ) during the production process, characterized in that 1 ° that the means for depositing a dose in each well consist of one or more assemblies ( 10 ) consisting of: - a reservoir ( 11 ) for dispensing a dose ( 4 ), - one under the reservoir ( 11 ) arranged slide device ( 12 ), whose slide ( 13 ) a receiving opening ( 14 ) for the dose ( 4 ) and is suitable to dose ( 4 ) with a translational movement to the ejection means ( 15 ) with reciprocating pistons ( 35 ) 2 ° that the system also has a single motor shaft ( 51 ) for driving the slider ( 13 ) and the piston ( 35 ) has on its translational movement and transmission means between the shaft ( 51 ) on the one hand and the slider ( 13 ) and the piston ( 35 ) on the other side, 3 ° and that: a) the motor shaft ( 51 ) perpendicular to the direction of translation of the piston ( 35 ) and the Slider ( 13 ), b) the transmission means between the motor shaft ( 51 ) and the piston ( 35 ) at least one cam ( 37 ) on the motor shaft ( 51 ) and connected by its profile with the ejection means, c) the transmission means between the motor shaft ( 51 ) and the slider ( 13 ) have at least one system, which consists of: - one on the motor shaft ( 51 ) mounted cam ( 38 ), - a lever ( 42 ), which rotates at one end with the profile of the cam ( 38 ) and at the other end with a rod ( 45 ) connected to the slider ( 13 ), - a swivel joint ( 43 ) for storing the lever ( 42 ) which is arranged between both ends and performs an oscillating movement, d) the profile of the cams (FIG. 37 . 38 ) has an asymmetrical shape which corresponds to the desired amplitude of the translatory movement of the slider ( 13 ) and the piston ( 35 ) corresponds. Plant for the production of individual dosage units ( 1 ) according to claim 1, characterized in that the assembly (s) ( 10 ) in a straight line to the means for carrying and forming a depression ( 9 ) vertical direction between an upper position and an ejection position, in which the means for carrying and for forming a depression ( 9 ). Plant for the production of individual dosage units ( 1 ) according to claim 2, characterized in that the drive of the assembly ( 10 ) in translational motion by a motor shaft ( 51 ) and transmitted by transmission means to the entire assembly ( 10 ) is transmitted. Plant for the production of individual dosage units ( 1 ) according to claim 3, characterized in that the transmission means between the motor shaft ( 51 ) and the assembly ( 10 ) at least one cam ( 39 ) on the motor shaft ( 51 ) and by their profile with the assembly ( 10 ) connected is. Plant for the production of individual dosage units ( 1 ) according to claim 3 or 4, characterized in that the ejection opening ( 22 ) on its circumference a coat ( 55 ), which with the reservoir ( 11 ) and a channel ( 53 ) surrounded by the spring ( 54 ) in the coat ( 55 ) is suspended and its lower end to the slide ( 13 ), which is an adaptation to different slide heights ( 13 ). Plant for the production of individual dosage units ( 1 ) according to one of claims 1 to 5, characterized in that the storage container ( 11 ) at least one rotating, driven blade ( 52 ) above the discharge opening ( 22 ) owns. Plant according to one of claims 1 to 6, characterized in that - the reservoir ( 11 ) a precompression cylinder ( 16 ) to fill the opening ( 14 ) and a first compression of the dose ( 4 ) and - that the supply pressure of the precompression cylinder ( 16 ) is adjustable to the density of the dose ( 4 ). Installation according to claim 7, characterized in that it comprises means for weighing ( 19 ) of the dosage unit ( 1 ) for the subsequent verification of the supply pressure of the precompression cylinder ( 16 ) according to the specified target weight. Plant according to any one of Claims 1 to 8, characterized in that it comprises the following components: - feeding means ( 25 ) for a reinforcing tape ( 24 ) between the filter paper sheets ( 2 . 3 ) can be inserted; Cutting means ( 26 ) for the reinforcing tape ( 24 ), in this excerpt ( 27 ) with one dose ( 4 ) take appropriate shape and come before the wells; Means for assembling the reinforcing tape ( 24 ) with the filter paper sheets ( 2 . 3 ) so as to provide a unit dose ( 1 ) with a stiffened edge. Plant according to claim 9, characterized in that the reinforcing strip ( 24 ) is a cardboard strip whose both sides are coated with a thermoplastic film and in that the means for joining heatable stamps ( 28 ) which are used to melt-fix the cardboard strip ( 24 ) on the leaves ( 2 . 3 ) serve. Plant according to one of Claims 9 or 10, characterized in that it additionally comprises feed devices ( 29 ) to increase the speed of one or both of the filter paper sheets ( 2 . 3 ) relative to the reinforcing tape ( 24 ) before joining to increase a relaxation ( 30 ) of the filter paper sheet with respect to the reinforcing tape ( 24 ), wherein relaxing ( 30 ) avoids too high stresses in the filter paper sheet during assembly. Installation according to one of Claims 9 to 11, characterized in that it comprises means for at least partially cutting in the filter paper sheets ( 2 . 3 ) near the depressions ( 9 ) in the direction of movement to limit stresses in the filter paper during assembly s. Installation according to one of Claims 9 to 13, characterized in that the means for cutting ( 26 ) also the formation of holes ( 32 ) in the direction of movement of the reinforcing band ( 24 ) are arranged in a row and evenly distributed, and that the plant one or more toothed rollers ( 33 ), which with the holes ( 32 ) cooperate to form the reinforcing tape ( 24 ) without undesirable movements. Installation according to claim 13, characterized in that the lateral position of the holes ( 32 ) in the reinforcing band ( 24 ) and the slots ( 31 ) in the filter paper sheets ( 2 . 3 ) are identical. Manufacturing method for individual dosage units, where between two filter paper sheets, one lower ( 2 ) and an upper ( 3 ), one dose ( 4 ) with a product to be brewed ( 5 ), for example coffee powder, said method being suitable for use in a plant according to one of claims 1 to 14 and in which: a) two filter paper sheets ( 2 . 3 ) are supplied; b) the lower filter paper sheet ( 2 ) and in it a depression ( 9 ) is formed; c) in each well ( 9 ) one dose ( 4 ) of the product to be brewed ( 5 ) is filled; d) the dosage units ( 1 ) are moved in the course of production, characterized in that - in each depression ( 9 ) one dose ( 4 ) of the product to be brewed ( 5 ) is filled in the following way: - that the product to be brewed ( 5 ) in a storage container ( 11 ) - that one dose ( 4 ) through a receiving opening ( 14 ) of the dose ( 4 ) in a slider device ( 12 ) from the reservoir ( 11 ) is output, - that the slide ( 13 ) performs a translational movement to the in the receiving opening ( 14 ) existing dose ( 4 ) to a place where they are pressurized by a reciprocating piston ( 35 ) into a depression ( 9 ), that the slide ( 13 ) and the piston ( 35 ) by the same motor shaft ( 51 ) are put in a translational movement, - that the motor shaft ( 51 ) perpendicular to the translation direction of the piston ( 35 ) and the slider ( 13 ) stands; - that as a transmission between the motor shaft ( 51 ) and the piston ( 35 ) at least one cam ( 37 ) on the motor shaft ( 51 ), which due to their profile with the ejection means ( 15 ) connected is; - that as a transmission between the motor shaft ( 51 ) and slides ( 13 ) at least one system consisting of: - one on the motor shaft ( 51 ) mounted cam ( 38 ), - a lever rotatable at one end with the profile of the cam ( 38 ) and at the other end with a rod ( 45 ) connected to the slider ( 13 ), - a swivel joint ( 43 ) for mounting the lever ( 42 ), which is arranged between both ends and performs an oscillating movement, and - that the profile of the cam ( 37 . 38 ) has an asymmetrical shape which corresponds to the desired amplitude of the translatory movement of the slider ( 13 ) and the piston ( 35 ) corresponds. Method according to claim 15, characterized in that before the expulsion of the dose ( 4 ) the slider device ( 12 ) is lowered to a level which is at the same height as the depressions ( 9 ) and that after the expulsion of the dose ( 4 ) is raised again. Method according to one of claims 15 or 16, characterized in that when ejected into the receiving opening ( 14 ) a pre-compression of the product to be brewed ( 5 ), and the precompressing pressure is adjusted to the desired density of the dose ( 4 ) to obtain. Process according to claim 17, characterized in that - the dosage units produced ( 1 ) are all or partially weighed, - that the precompaction pressure is controlled in accordance with the established deviations between the result of the weighing and the target weight. Method according to one of claims 15 to 18, characterized in that - a reinforcing tape ( 24 ), - in the reinforcing band ( 24 ) Excerpts ( 27 ) and the shape of the cutouts ( 27 ) to the dose ( 4 ), - the position of the cutouts ( 27 ) before the wells ( 9 ), - a reinforcing tape ( 24 ) between the two filter paper sheets ( 2 . 3 ) and these are put together. Method according to claim 19, characterized in that - the two sides of the reinforcing strip ( 24 ) are coated with a thermoplastic film, - the reinforcing tape ( 24 ) and the two filter paper sheets ( 2 . 3 ) are joined together by fusing. Method according to one of the claims 19 or 20, characterized in that the filter paper sheet ( 2 . 3 ) is moved faster before joining than the reinforcing tape ( 24 ) to relax the filter paper sheet and thus avoid too high stresses in the filter paper sheet during assembly. Method according to one of claims 19 to 21, characterized in that one or both filter paper sheets ( 2 . 3 ) before joining in the vicinity of the depressions ( 9 ) are slotted at least partially in the direction of movement.