EP1568451A1 - Method and apparatus for punching a filtering medium - Google Patents

Abstract

A process for stamping out inserts (39) from a non-woven insert material (26), comprises passing the material between a cutting die (20) and a cutting unit (16) with a cutting surface (44). The die and the cutting unit move perpendicularly to the plane of the material, and the cutting unit partially locates into the die. The die and cutting unit are held at a temperature where partial melting of the insert material occurs.

Description

TECHNICAL AREA

The present invention relates to a method and a device for the Punching out inserts from a nonwoven insert sheet Material. The invention is particularly in the field of production of coffee capsules with inserts made of polyurethane fleece.

STATE OF THE ART

Especially in the food industry containers are often provided with deposits, the can fulfill the most diverse functions. For example, containers, in which moisture-sensitive powder is contained, provided with an insert which absorbs the moisture and keeps the powder dry. Other containers, in which contain liquids can be provided with self-sealing inserts be so that despite damage to the container leakage of the contents is prevented. Other applications are to provide inserts which release a substance into the main space upon activation, e.g. with capsules or cups for drinking water could be the case, in which after a piercing o.ä. a disinfectant is dispensed in controlled doses.

Self-sealing inserts are also used for coffee powder capsules. There the deposits are usually provided on the bottom of the coffee powder capsules. to Coffee preparation, the capsules in the coffee machine with a needle or with 3 Stitch gauge is tapped on the floor area and water is thrown through the floor Coffee powder introduced into the capsules. After the coffee has been prepared and the needle has been pulled out again, the coffee powder capsules remain due to the self-sealing insert tight. This will avoid that when removing the coffee powder capsules leak remains of hot cooking water and the Users can scald and contaminate the capsule chamber of the Coffee machines are prevented.

The containers are made of a container material web, for example a Aluminum band, shaped. They are punched out of a train and then by forming, such as deep drawing or blow molding, manufactured. The Inserts themselves are punched out of a band-shaped Einlagenmaterialbahn, before they are sealed onto the aluminum strip. The punching and introduction Of the deposits is, especially with self-sealing deposits, often with technical Difficulties: Self-sealing inserts are subject to tensile stress a high elasticity, so they when drilling through the container wall together with the Insert by their own elasticity, the hole immediately seal. In addition, the Surfaces of such self-sealing inserts have a certain adhesiveness, so that the hole edges in a perforation of the self-sealing inserts stick together and reinforce the seal. The high elasticity of the Einlagenmaterials on the one hand with the result that a feed movement of the Einlagenmaterialbandes can only be done at low speed or that only low tensile forces can act on the deposit material, on the other hand it leads along with other material properties, that the stamping process typically must be carried out consuming, so that the punching in particular always guaranteed clean at high production speeds.

However, the manufacturing process can only be made economical if the Containers with high clock rates with deposits and manufactured.

PRESENTATION OF THE INVENTION

The invention is therefore based on the object, a method, respectively a Device to provide a reliable and high Speeds-enabled punching process, even when punching Inserts made of an insert material web made of a difficult-to-machine nonwoven Material.

The solution of this problem is achieved in that the method in a first Step the pad material web between a punched hole having Cutting die and one in the punching area to the punching opening tapered Cutting edge having corresponding cutting edge is performed, and in a second Step down the cutting die and the cutting edge in one direction substantially be fed to each other perpendicular to the plane of the Einlagenmaterialbahn, that the cutting edge partially engages in the punching opening of the cutting die and the intermediate liner material web separated to form the insert with the cutting edge and / or cutting die maintained at a temperature in which an at least partial melting of the deposit material takes place.

The core of the invention thus consists in the mechanical punching process by the Application of increased temperature support, and thus the classic way to facilitate and improve only mechanically performed punching process. According to the prior art, such deposits are typically by a Ball-head cutting edge, which can be cut off when the insert material is clamped within the cutting die to ever sufficient separation effect produce, punched. In addition, according to the prior art, a large punching force required to produce a sufficient effect at all. By the additional Application of heat can be reduced according to the punching force, since smallest Fibers are melted off.

Such a method can be used in particular if the insert material web is a polyurethane nonwoven, preferably of a thermoplastic polyurethane based on polyester or polyether, in which case particularly preferably the cutting edge and / or the cutting die are at a temperature in the region of 75 ° -90 ° C is / are kept. For example in the field of production of coffee capsules, the polyurethane nonwoven is a polyurethane nonwoven with an air permeability of more than 300 l / m ² / s and a pore size in the range of 10 to 40 mm, preferably at a thickness of in the range of 0.1 to 0.3 mm. Also, such material can be punched very efficiently with the proposed method.

According to a first preferred embodiment of the invention, the method performed using a cutting die, which is a substantially cylindrical, preferably circular cylindrical punch opening, and wherein the Cutting surface of the cutting edge with the cylinder axis at an acute angle, in particular preferably in the range of 30 to 60 ° (preferably about 45 °) includes. Preferably while the cutting edge designed so that they are in contact with the cutting surface with the Cutting die only by a few tenths of a millimeter, for example, only 1 / 10mm in the Punching opening of the cutting die engages.

In particular, but not exclusively in the field of production of coffee capsules it turns out according to a further preferred embodiment of the invention as advantageous to form the cutting edge as a ring cutting, which within the Cutting surface has an opening through which a punch perpendicular to Level of the insert material web is guided, wherein in a third step of the Method of the punch discharges the insert through the punched opening, and wherein in particular, this removal preferably takes place on a second material web. The Insert can preferably be guided through the punch opening and in contact be brought with the second material web, with particular preference the Insert is connected to the second material web. This can be, for example but not exclusively in the field of coffee capsule production Realize that the insert with the second material web in a heat sealing process is connected, in particular preferably on the side facing away from the insert the second material web is arranged a sealing heater, which on a Temperature is maintained, which is an activation of one of the deposit facing side of the second material web arranged sealing material triggers.

In connection with the heating of cutting edge and / or cutting die proves It is advantageous according to a further preferred embodiment, this induce inductively. But it is also possible to use other heating methods use such as electric heating, optical heating and the like. The heating should at least at the moment of the merger of Cutting edge and / or cutting die to be ensured at the desired temperature, this preferably in the range of 50 to 150 ° C, particularly preferably in the range of 75 to 100 ° C. Preferably, the cutting edge is kept at this temperature.

According to a further preferred embodiment, the method is a method for producing cup-shaped, with a deposit Containers (in particular of coffee capsules), which is characterized in that the inserts are punched out before forming the cup-shaped container on be applied to the places where the container in a subsequent Operation are made by forming, and that the cup-shaped container then punched out of a container material web and then in a Shaping process are formed, wherein preferably in a step between 6 and 12 Inserts, particularly preferably 8 deposits are punched out. The deposits will be preferably punched out of a Einlagenmaterialbahn, and the Einlagenmaterialbahn and the container material web are so one above the other fed to the deposits immediately after their punching out of the Einlagenmaterialbahn on the underneath resp. overlying container material web applied and can be connected to this. In this context it proves to be advantageous if order patterns alternately from at least two Einlagenmaterialbändern be punched out, wherein the second Einlagenmaterialbahn for punching in the work area is moved.

Further preferred embodiments of the inventive method are in described the dependent claims.

As already mentioned, the present invention also relates to a device in particular for carrying out a method as described above. The Device is for punching out deposits from a Einlagematerialbahn a non-woven material, and includes a cutting die with a punch opening and a cutting edge between which the insert material web is disconnected. The device is characterized in particular in that the Cutting edge has a cutting area tapering towards the punch opening in the punching area, that the cutting die and the cutting edge are substantially perpendicular in one direction are stored to the level of Einlagenmaterialbahn such that they are fed to each other can be, with the cutting edge in the punching opening of the cutting die at least partially engages and the intermediate Einlagenmaterialbahn under training the insert is separated, wherein means are arranged, by means of which the Cutting edge and / or the cutting die are kept at a temperature at which at least a partial melting of the deposit material takes place.

Preferably, the cutting die has a substantially cylindrical, preferably circular cylindrical punch opening, and the cutting surface of the cutting edge (16) closes with the associated cylinder axis an acute angle, particularly preferably in Range of 30 to 60 °, preferably in the range of 45 °, a.

To a direct shift resp. a transfer of the deposit to a second medium it proves to be possible according to a further preferred embodiment as advantageous to form the cutting edge as a cutting edge, which within the Cutting surface has an opening through which a punch perpendicular to Level of the insert material web can be performed. The stamp is added provided, the insert through the punch opening substantially immediately after the To dissipate punching process, preferably this discharge, preferably in one linear movement (eg, parallel to the relative direction of movement of the cutting edge and Schneidmatrize), takes place on a second material web, and wherein in particular Preferably further means are provided, by means of which the insert with the second material web can be connected. The funds may be a Seal heating act, with the help of which the insert with the second material web in a marriage sealing process can be connected. It is particularly preferred the sealing heater on the side facing away from the insert of the second material web arranged, and the seal heater is maintained at a temperature which a Activation of a side of the second material web facing the insert arranged sealing material (can on the insert or on the second material web already be provided) triggers.

As already mentioned, the proposed device can be used in particular in the field of Production of cup-shaped containers provided with a liner such as Coffee powder capsules are used. Here are a Einlagenmaterialbahn, a the deposit material web in a work area overlapping container material web and a punching device arranged in the working area, through which the Inserts on stamping positions arranged in a predetermined application pattern punched out and in predetermined container positions on the container material web can be applied, wherein preferably a feed device is present by which the punching device and the Einlagenmaterialbahn at least at one part the displacement steps substantially transverse to the web direction of Einlagenmaterialbahn are movable relative to each other movable. In connection with this procedure is explicit on the Swiss application CH 0739/03 from 25.04.2003 resp. the associated European patent application, whose Content at this point expressly in the disclosure of the present document should be included.

According to a further preferred embodiment of the device according to the Invention, the seal stamp on means, especially in the form of means for Applying a negative pressure (e.g., vacuum lines with openings on the Stamp top, wherein the vacuum depending on the punching cycle respectively in essential only applied while transporting to a second web takes place), by means of which the insert between the punching and the application on the second web can be held on the seal.

In particular, in connection with the production of coffee capsules proves it as advantageous to arrange the cutting die in a first stationary plane (in a die holder), wherein above this first stationary plane, the second Material web (eg container material web) and above this second material web a sealed heater (for fixing the deposits on the container material web) are arranged. In this case, one below the first stationary level is preferred as Ring cutting edge formed cutting edge (for partial engagement in the cutting die designed) slidably mounted perpendicular to the first stationary plane, and a Sealing stamp is mounted axially displaceable within the annular cutting edge to this. So can, when the insert material web fed between the cutting edge and the cutting die is first punched between the cutting edge and cutting die insert, and These then without any intermediate storage, large shift or Similar directly to the above-guided second web in a linear Movement be applied from below, and with this with the help of the Seal heater to be connected. Subsequently, for example, such with the inserts provided web in a forming process (in combination with another punching process of the second material web) to coffee capsules be further processed.

In the context of efficient and parallel production of a variety deposits or, where appropriate, a large number of coffee capsules may be prove advantageous to arrange a plurality of cutting dies in a first plane, and to arrange a corresponding number of blades in a second plane, and the first and second levels synchronized with each other during the punching process move.

Further preferred embodiments of the inventive device are in described the dependent claims.

BRIEF EXPLANATION OF THE FIGURES

Fig. 1

einen axialen Teilschnitt durch eine Stanzvorrichtung gemäss der Erfindung, wobei in der rechten Hälfte die Stanze im geöffneten Zustand dargestellt ist, und in der linken Hälfte die Stanze im geschlossenen Zustand dargestellt ist, wobei gleichzeitig die Einlage bereits auf einer zweiten Materialbahn fixiert wird;

Fig. 2

einen axialen Teilschnitt analog zu Fig. 1 eines weiteren Ausführungsbeispiels einer Stanze;

Fig. 3

eine schematische Aufsicht auf eine Stanze gemäss Fig. 1 oder Fig. 2, wobei mehrere derartige Stanzvorrichtungen parallel geschaltet sind; und

Fig. 4

eine schematische Aufsicht gemäss Fig. 3, wobei weiterhin das Stanz-respektive Auftragsmuster sowie die Bemassungen im Detail dargestellt sind.

The invention will be explained in more detail with reference to embodiments in conjunction with the drawings. Show it:

Fig. 1

an axial partial section through a punching device according to the invention, wherein in the right half of the punch is shown in the open state, and in the left half of the punch is shown in the closed state, at the same time the insert is already fixed on a second material web;

Fig. 2

an axial partial section analogous to Figure 1 of another embodiment of a punch.

Fig. 3

a schematic plan view of a punch according to FIG. 1 or FIG. 2, wherein a plurality of such punching devices are connected in parallel; and

Fig. 4

a schematic plan view of FIG. 3, wherein further the punching respectively order pattern and the dimensions are shown in detail.

WAYS FOR CARRYING OUT THE INVENTION

Fig. 1 shows an axial schematic section through a punching device according to a first embodiment. The punching device stands on a base plate 1, on which guide columns 2 are attached. A punching device comprises usually four such guide columns 2, but with several punching devices can be performed by such a group of four guide columns 2 (see. below in connection with Figs. 3 and 4). With respect to the base plate 1 respectively arranged on the guide columns 2 are fixed on the one hand, the cover plate. 4 and a die holder 11 arranged below it. The cover plate 4 and the Die holder 11 may be fixedly connected to the guide columns 2 for fixing, But also on other fastening devices in relation to the Guide columns 2 to be fixed in place.

The punching device described in the context of this embodiment is u.a. designed in a combined process initially from a Einlagematerialbahn 26 a liner 39 aus punch, and this deposit directly then apply to a container material web 27. To this direct transfer too ensure the container material web 27 above the die holder 11 and in a sense, on this resting led. Below the die holder is the Insert material web 26 out.

Ultimately, it is about deposits on the container material web and 20 apply and in a subsequent, of the present punching device independent process from the container material coffee capsules in one Forming process to produce.

The moving elements of the punching device are now below the die holder 11 arranged. To illustrate the individual process steps in a single FIG can, the punching device is on the right half-side in the open state shown, and on the left half-side in the closed state immediately at Applying the insert to the sealing film 27, d. H. on the container material web. The movable elements of the punching devices comprise a lower holder 5, which via a toggle 24 on the guide columns 2 in the vertical direction is slidably mounted.

Another movable element is the upper holder 6 to call, which also is slidably mounted on the guide columns 2 in the vertical direction. The upper Holder 6 can be moved relative to the lower holder 5 to a certain extent and this relative mobility is for a functioning of the stamping process crucial.

The upper holder 6 is slidable via a guide rod 10 with the lower Holder 5 connected. The guide rod arranged parallel to the guide columns 2 10 is fixedly connected to the upper holder 6 and is at the lower holder 5 via a Guide holder 7, in which a sliding bearing 9 is arranged, slidably guided. Of the maximum distance from the upper holder 6 and lower holder 5 is about a Adjusting nut 30 determined. This maximum distance is determined by at least one Cutting compression spring 23 forced. In other words, the upper level 6 only approximated against the spring force of the cutting compression spring 23 to the lower level 5 and this only up to another stop, then, namely, when the Guide rod 10 and the adjusting nut 30 with the surface of the lower Halters 5 comes into contact.

On the upper side of the upper holder 6, an insulation 12 is first arranged on which then a bobbin 13 is placed. Within this Coil bobbin 13, an electric coil 14 is arranged, which serves to a above the bobbin 13 arranged annular cutting edge 16 to heat inductively. To control the temperature of the annular cutting edge 16 is also a temperature sensor 29th arranged. The annular cutting edge 16 is connected via a clamping ring 15 on the bobbin 13 attached.

The annular cutting edge 16 is essentially substantially cylindrical on the inside cut out circular ring formed, the cutting die 20 facing Outer surface, the cutting surface 44, tapered, d. H. it forms a cutting tip. The cutting surface 44 closes with the axis of the annular cutting edge 16 an angle of 30-45 °. The cutting tip of the annular cutting edge 16 is the Adjusted inside diameter of the cutting die 20 attached to the die holder 11. The cutting die 20 is made, just like the annular cutting edge 16 of a hardened Metal and is interchangeable and formed in the form of a circular ring. The Cutting dies 20 also has a cylindrical central opening whose Diameter but about 2/10 mm larger than the diameter of the cutting tip Ring cutting edge 16. The annular cutting edge 16 thus moves in a succession of the Ring cutting 16 on the cutting die 20 into the Schneidmatrize20 easy, and The material to be separated is on the one hand by the cutting tip and on the other clamped between the cutting surface 44 and the inner edge of the cutting die 20 respectively. separated.

Within the annular cutting edge 16, d. H. in the central hole of the punch, is now In addition, a sealing stamp 17 made of plastic or a plunger 21 arranged, which is also displaceably mounted in the vertical direction. This the plunger 21st is on the lower side first in the guide holder 7 of the lower holder 5 in one Slide bearing guided. Against the stop of an adjusting nut 25 of the plunger 21 is over a sealing compression spring 22 clamped upward, d. H. the plunger 21 can only against the Spring force of the sealing compression spring 22 against the lower holder 25 down be moved. In the area of the annular cutting edge 16 at the head of the plunger 21 is the Seal 17 arranged, and this is firmly connected to the plunger 21. Of the Sealing stamp 17 has in the area of the annular cutting edge 16 via a shoulder, which in a corresponding paragraph formed by the bobbin 13 and the Ring cutting 16 engages, so that the unit of seal stamp 17 and plunger 22 only can be inserted into the upper holder 6 until it reaches this paragraph. In the open position of the punch shown in the right half-plane is the Seal 17 set on the adjusting nut 25 such that the upper level of the Sealing stamp 17 substantially in a plane with the cutting tip of Ring cutting 16 comes to rest.

Within the plunger 21 and in particular within the seal punch 17 is a System provided with vacuum lines, which on the underside of the plunger 21st Vacuum is applied via a vacuum connection 28. The vacuum lines open at the upper-side inner surface of the seal stamp 17 in small holes, and serve the punched insert 39 in their transport up to the Keep container material web 27 on the seal 17 stamp.

Immediately above the cutting die 20 and between die holder 11 and Cover plate 4 is coaxial with the movable just described below arranged elements of the punch a sealing heater 18 is arranged. These Sealing heater 18 is attached via an insulation 19 on the cover plate 4. The Sealing heater 18 is formed substantially as a cylindrical punch, the is electrically maintained at a temperature which is a sealing of the inserts 39 allowed with the container material web 27. The sealed heater 18 is doing so above the container material web 27 arranged that between the container material web 27 and Seal heater 18 a distance of about 1/2 mm remains.

The individual elements lower holder 5, upper holder 6 and plunger 21 with it fastened seal stamp 17 are in other words adjustable relative to each other displaceable and movable, and the mobility is described below on the basis of Description of the operation will be described in a punching operation.

As already mentioned, the punching device is in the open position on the right side State shown. In this open state, the annular cutting edge 16 of the Cutting die 20 spaced.

Between these two elements, the insert material web 26 is guided, namely Preferably, such that they neither the cutting die 20 nor the annular cutting edge 16 touched. As Einlagematerialbahn in the present case, a train Polyurethane fleece made of Estane® with a basis weight of 50 grams per Square meters.

Above the die holder 11 is a sealing film 27 respectively a Container material web led. It is a metal track resp. a tin from, for example, aluminum, which is already provided with a coating, which applying and simultaneously securing the inserts 39 on the Container material web 27 is allowed by simple local heating (typically if the coating is an acrylic based hot sealing varnish). The Coating must for this purpose at least on the seal heater 18th remote side on the container material web 27 may be present. The Container material web 27 is spaced from the seal heater 18, it should between seal heater and container material web at least a distance of 1/2 mm remain.

Both the container material web 27 and the insert material web 26 have the reached desired position, via the toggle lever 24, the entire unit as it is shown in the right half-plane of Fig. 1, moved upward. After a corresponding displacement is first a contact between the annular cutting edge 16 (And optionally the surface of the seal stamp 17) with the insert material web 26 take place. Since the insert material web 26 is flexible, it becomes more in the other Displacement of seal punch 17 and cup 16 up and last against pressed the cutting die 20. At the moment in which the Einlagematerialbahn 26 between the annular cutting edge 16 and the cutting dies 20 is pressed, is a Separation of the insert material web to form the deposits 39 take place. On the one hand, this separation occurs due to the mechanical separation effect between Ring cutting 16 (respectively cutting surface 44) and cutting die 20 instead, On the other hand, but also according to the invention a more extensive separation effect the heating of the annular cutting edge 16 is reached. Namely, the ring cutter 16 becomes at least at the moment of punching at a temperature in the range of 75-90 ° or held more thin, and accordingly thin fibers, which by the mechanical Effect can not be separated enough, separated by the action of heat.

After reaching the contact between annular cutting edge 16 and cutting die 20 is the upper holder 16 with respect to the die holder 11 fixed in position. Since now the Knee lever 24, the lower holder 5 against the force of the spring 23 further upward presses, the plunger is 21, respectively, arranged at the top seal stamp 17, on which the vacuum 3, the now ejected insert 39 is fixed by the central opening of the annular cutting edge 16 and through the central opening of the Cutting die 20 through the container material web 27 shifted. The Container material web 27 is by the force of the punch 17 to the sealing heater 18th pressed, this state is now shown on the left side of Fig. 1. The Sealing heater 18, which at a temperature of about 160 ° or depending on Melting point of the sealing medium is held, now causes the deposit between Stamp 17 and container material web 27 respectively seal heater 18 pressed and is heated so that the arranged on the container material web 27 coating at least partially melts and a firm connection between deposit and Container material web 27 leads. The applied pressure is through the seal-pressure spring 22 determined. The toggle is stretched out in this position, and a further rotation then leads again to a movement apart of the punch. Container material web 27 and insert material web 26 can now move to the next one required position to be postponed.

Another embodiment of a punching device is shown in Fig. 2, wherein corresponding parts are the same as in Fig. 1. Accordingly, the following only the essential differences between Fig. 1 and 2 will be discussed. In this case, the die holder 11 and the cover plate 4 are not on the Guide columns 2 attached, but rather to other support columns 33rd Die Guide columns 2 are limited at their upper end via a closure plate 34, on which is typically the insert material web 26 is guided. As already above mentioned, the annular cutting edge 16 and the cutting die 20 in the case of Wear replaceable provided. On the one hand, the interchangeability of this simplify both elements, and on the other hand, the leadership of Einlagematerialbahn 26 to adjust, is about a first axis of rotation 31 the Cover plate 4 tilted up and equally the die holder 11 via a second axis 32.

FIG. 3 now shows a plan view of a device in which 8 inserts 39 simultaneously and synchronously by 8 punching devices as shown in Fig. 1 and Fig. 2nd are shown punched out. In Fig. 3 is visible as the container material web 27 is transported in a first main feed direction 35, and the Einlagematerialbahn in a second main feed direction 36, which perpendicular to the first feed direction 35 is. In addition, two Einlagematerialbahnen 40 and 41 out parallel to each other and after a certain pattern (see Fig. 4) traveled. Regarding the procedure for sequential processing of individual punching positions in the insert material web 40 is referred to the method described in detail in CH 0739/03, and this This item is explicitly included in the disclosure. In Fig. 3 further visible is the respective diameter 38, which subsequently in the downstream Forming process leads to the actual coffee capsules. Is a section of the first Einlagematerialbahn 40 processed, both tracks of the liner material in a moved second position, leaving the bottom first and unprocessed Insert material web 41 is available for the next punching sequence, while the removed first liner material web 42 in the upper position in the direction 36 can be.

The details of this method are shown schematically in FIG. At the top, the container material web 27, which is completely filled with inserts 39, is shown, it becomes visible how the container material web, which has a width a of approximately 469 mm, is fitted with inserts 39 under maximum material utilization (the diameter 38 is 63.5 mm). This is achieved by the displacement pattern as indicated in the middle region by the sequence of the numbers within the illustrated liner web 43 while optimally utilizing the material of the liner web 43. For this purpose, the centers of the inserts 39 are spaced in the feed sheet 43 by g = 24.75 mm in the feed direction 35, and by d = 28.58 mm in the feed direction 36. The axes of the individual punching devices are spaced in the feed direction 35 by f = 99 mm and in Feed direction 36 by e = 114.32 mm, the individual punching positions are arranged symmetrically offset. The insert material webs have a width b = 204 mm, and the width c available for the two webs 42 and 43 is 706.25 mm.
The method used allows to perform 85 punches per minute.

LIST OF REFERENCE NUMBERS

1

baseplate

2

guide column

3

vacuum line

4

cover plate

5

lower holder

6

upper holder

7

guide holder

8th

leadership

9

bearings

10

guide rod

11

die holder

12

Isolation (material)

13

bobbins

14

electric coil

15

clamping ring

16

serrated

17

seal

18

seal Heating

19

heater

20

cutting die

21

tappet

22

Seal spring

23

Cutting-pressure spring

24

toggle

25

adjusting

26

Filter fleece, insert material web

27

Sealing film, container material web

28

vacuum connection

29

temperature sensor

30

adjusting

31

Rotary axle for 4

32

Rotation axis for 11

33

support column

34

End plate

35

Feed direction of 27

36

Feed direction of 26

37

Diameter insert

38

Diameter of container material in container material web

39

inlay

40

first deposit material web (active)

41

second insert material web (passive)

42

first deposit material web (passive)

43

second insert material web (active)

44

Cutting area of 16

45

Punch opening of 20

Claims (27)

Method of punching inserts (39) from an insert material web (26) of a non-woven material,
characterized in that, in a first step, the insert material web (26) is guided between a cutting die (20) having a punched opening (45) and a corresponding cutting edge (16) which tapers into the punching opening (45),
and in a second step, the cutting die (20) and the cutting edge (16) are fed towards each other in a direction substantially perpendicular to the plane of the insert material web (26) such that the cutting edge (16) penetrates into the punching opening (45) of the cutting die (20 ) and the intermediate insert material web (26) is separated to form the insert (39), wherein the cutting edge (16) and / or the cutting die (20) are maintained at a temperature at which at least partial melting of the insert material takes place , A method according to claim 1, characterized in that it is the insert material web (26) is a polyurethane non-woven, preferably made of a thermoplastic polyurethane on polyester or polyether base and that particularly preferably the cutting edge (16) and / or the cutting die (20) a minimum temperature in the range of 75 ° -90 ° C is maintained. A method according to claim 2, characterized in that it is a nonwoven polyurethane nonwoven with an air permeability of more than 300 l / m ² / s and with a pore size in the range of 10 to 40 mm, preferably at a thickness of in the range of 0.1 to 0.3 mm. Method according to one of the preceding claims, characterized in that the cutting die (20) has a substantially cylindrical, preferably circular cylindrical punched opening (45), and cutting surface (44) of the cutting edge (16) with the cylinder axis at an acute angle, particularly preferably in the range from 30 to 60 °. Method according to one of the preceding claims, characterized in that the cutting edge (16) is designed as a circular cutting edge, which has within the cutting surface (44) via an opening through which a punch (17) perpendicular to the plane of the Einlagematerialbahn (26) can, and that in a third step, the punch (17) discharges the insert (39) through the punched opening (45), wherein particularly preferably this discharge takes place on a second material web (27). A method according to claim 5, characterized in that the insert (39) is guided through the punched opening (45) and brought into contact with the second material web (27), wherein in particular preferably the insert (39) connected to the second material web (27) becomes. A method according to claim 6, characterized in that the insert (39) with the second material web (27) is connected in a Heisssiegelprozess, particularly preferably on the side facing away from the insert (39) side of the second material web (27) a sealing heater (18) is arranged, which is maintained at a temperature which triggers an activation of a on the said insert (39) facing side of the second material web (27) arranged sealing material. Method according to one of the preceding claims, characterized in that the cutting edge (16) and / or the cutting die (20) is held inductively at the desired temperature, or inductively at least at the moment of merging of cutting edge (16) and / or cutting die (20 ) is heated to the desired temperature, preferably in the range of 50 to 150 ° C, particularly preferably in the range of 75 to 100 ° C. Method according to one of the preceding claims for producing cup-shaped containers provided with an inlay (39), characterized in that the inserts (39) are punched out before the forming of the cup-shaped containers, are applied to the places where the containers in a subsequent cup-shaped container (39) are then punched out of a container material web (27) and then formed in a forming process, preferably in one step between 6 and 12 inserts (39), particularly preferably 8 inserts ( 39) are punched out. A method according to claim 9, characterized in that it is the cup-shaped containers are coffee powder capsules. Method according to one of claims 9 or 10, characterized in that the inserts (39) are punched out of a Einlagenmaterialbahn (26), and that the Einlagenmaterialbahn (26) and the container material web (27) are superimposed so that the inserts (39 ) immediately after the punching of the Einlagenmaterialbahn (26) on the below resp. overlying container material web (27) are applied and connected to this. Method according to one of claims 9 to 11, characterized in that the inserts (39) with a punching device at punching positions arranged in a predetermined order pattern punched out of a Einlagenmaterialbahn (26) and punched out the deposits (39) arranged in the order pattern order items on a container material web (27), which at least in the area of the punching device, the Einlagenmaterialbahn (26) is guided overlapping in a work area, are applied, wherein subsequently the container from the container material web (27) are produced in the order items, wherein particularly preferably the Einlagenmaterialbahn (26) and the punching device is moved relative to one another at least in a part of the displacement steps substantially in the direction (35) transversely to the unwinding direction (36) of the insert material web (26) between application patterns to be punched one after the other. A method according to claim 12, characterized in that a plurality of application patterns are punched out along a path extending in the direction (35) transversely to the unwinding direction (36) of the insert material web (26) before the punching device and the insert material web (26) are pressed relative to one another in the unwinding direction (36 ) are moved. A method according to claim 12 or 13, characterized in that in the direction (35) transversely to the unwinding (36) of the Einlagenmaterialbahn (26) successively more order pattern are punched out than in the unwinding (36), preferably several, in the direction (36) of the Einlagenmaterialbahn (26) substantially successively, possibly transverse to the feed direction of the Einlagenmaterialbahn (26) staggered deposits (39) of a job pattern are punched out simultaneously. Method according to one of claims 9 to 14, characterized in that the application pattern are punched out alternately from at least two Einlagenmaterialbändem (42,43). A method according to claim 15, characterized in that the second Einlagenmaterialbahn is moved for punching in the work area. Apparatus for punching inserts (39) from an insert material web (26) of a non-woven material comprising a cutting die (20) with a punched opening (45) and a cutting edge (16) between which the insert material web (26) is separated,
characterized in that the cutting edge (16) has a cutting surface (44) which tapers in the punching region to the punched opening (45),
in that the cutting die (20) and the cutting edge (16) are mounted in a direction substantially perpendicular to the plane of the insert material web (26) so that they can be fed to each other, wherein the cutting edge (16) into the punching opening (45) of the cutting die (20) at least partially engages and the intermediate Einlagenmaterialbahn (26) is separated to form the insert (39), wherein means (13, 14) are arranged, by means of which the cutting edge (16) and / or the cutting die (20). be maintained at a temperature at which takes place at least a partial melting of the deposit material. Apparatus according to claim 17, characterized in that the cutting die (20) has a substantially cylindrical, preferably circular cylindrical punched opening (45), and cutting surface (44) of the cutting edge (16) with the cylinder axis at an acute angle, particularly preferably in the range of 30 up to 60 °. Device according to one of claims 17 or 18, characterized in that the cutting edge (16) is formed as a circular cutting edge, which has within the cutting surface (44) via an opening through which a punch (17) perpendicular to the plane of the Einlagematerialbahn (26) can be performed, and that the punch (17) is provided to remove the insert (39) through the punched opening (45) after the punching process, preferably this discharge, preferably in a linear movement, on a second material web (27) , and wherein in particular preferably means (18) are provided, by means of which the insert (39) can be connected to the second material web (27). Apparatus according to claim 19, characterized in that the means (18) is a heat seal, with the aid of which the insert (39) can be connected to the second material web (27) in a heat sealing process, wherein in particular the sealing heat ( 18) is arranged on the side of the second material web (27) facing away from the insert (39), and the heat seal (18) is kept at a temperature which activates a side of the second material web (27) facing the insert (39) ) arranged sealing material triggers. Device according to one of claims 19 or 20, characterized in that the device for the production of cup-shaped, with a liner (39) provided containers such as coffee powder capsules is formed, wherein a Einlagenmaterialbahn (26), a Einlagenmaterialbahn (26) in one Working area overlapping container material web (27) and a punching device arranged in the work area through which the inserts (39) are punched out at punching positions arranged in a predetermined order pattern and in predetermined container positions on the container material web (27) can be applied, wherein preferably a feed device is present, through which the stamping device and the Einlagenmaterialbahn (26) are at least at a portion of the displacement steps substantially transversely to the web direction (36) of the Einlagenmaterialbahn (27) movable relative to each other movable. Apparatus according to claim 21, characterized in that the web direction (36) of the insert material web (27) extends substantially perpendicular to the web direction (35) of the container material web (27). Apparatus according to claim 21 or 22, characterized in that two substantially parallel and preferably juxtaposed Einlagenmaterialbahnen (27) are provided. Apparatus according to claim 23, characterized in that the two Einlagenmaterialbahnen (27) are configured independently deliverable in the web direction. Device according to one of claims 19 to 24, characterized in that the sealing stamp (17) via means (3), in particular in the form of means for applying a negative pressure, by means of which the insert (39) between the punching and the application on the second material web (27) can be held on the sealing stamp (17). Device according to one of claims 19 to 25, characterized in that the cutting die (20) is arranged in a first stationary plane that above this first stationary plane the second material web (27) and above this second material web (27) a sealing heater (18 ) are arranged so that below the first stationary plane designed as a cutting edge (16) cutting edge (16) is mounted displaceably perpendicular to the first stationary plane, and that a sealing die (17) within the annular cutting edge (16) is mounted axially displaceable to this. Device according to one of claims 17 to 26, characterized in that in a first plane a plurality of cutting dies (20) are arranged, and in a second plane a corresponding number of blades (16) are arranged, and that the first and the second plane during the Stamping process synchronized to each other to be moved.

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