EP3183125B1 - Inserting system - Google Patents

Description

The present invention relates to an inserting device with a funnel and at least one pulling means for transporting the envelopes onto a packing bag, as well as a method for operating an inserting device.

From the EP 0 504 114 B1 an inserting device is known which can approximately double the speed compared to the prior art known at the time. A pivoting packing bag and a hold-down roller are controlled by levers through a curve. The large number of rapidly moving parts required as a result is complex to manufacture and prevents an even higher packaging performance due to the relatively large moving mass. In addition, the moving packing bag leads to undesirable vibrations, which also limit the packaging performance. Furthermore, in such a device, a different packing bag must be installed for each envelope size that is different in terms of width, i.e. the dimensions transverse to the transport direction of the envelope, which is also only suitable for a very limited range of the thickness of the contents to be packed to ensure optimal guidance of the envelope or the envelope contents to be guided through the packing bag. Such an exchange is costly due to the movable guidance of the pannier.

In the U.S. 2,019,211 A an enveloping device is shown in which the function of the packing bag, ie the filling of the envelopes, is realized by a pivoting tongue and a pivoting rake for opening an envelope that is guided vertically upwards, as well as a stationary funnel and conveyor belts for feeding in the letter content that is guided vertically downwards becomes.

From the U.S. 2,915,863 a packing bag formed by a pivotable funnel is known on which the envelope is pushed on from one side and the contents of the letter are pushed in from the other side forming the funnel.

In the same way, the FR 2 859 945 The stationary packing bag shown, formed from two brackets, is loaded with the contents of the envelope via two corresponding guide openings.

It is an object of the present invention to avoid the disadvantages of the prior art and to create an inserting device with which the packaging speed can be increased further, for example to 30,000 to 40,000 packages per hour. Another object of the invention is to create a packing bag that does not have to be moved during the inserting process in order to avoid disruptive vibrations. Finally, it is also an object of the invention to provide an inserting device for different envelope blanks and / or envelope contents. Thanks to particularly precise guidance, envelopes with short or straight flaps should also be safe be packaged, whereas the prior art requires as pointed flaps as possible so that they come to rest on the guide surface of the bag as early as possible and thus facilitate the guidance and opening of the envelopes. Furthermore, envelopes that have become wavy due to poor quality or poor storage should also be reliably processed, which the state of the art does not allow.

An inserting device which fulfills the stated objectives and avoids the disadvantages of the prior art is disclosed in claim 1 and a corresponding method in claim 30. Further preferred embodiments can be found in the subclaims.

The enveloping device designed for inserting the contents of an envelope has a holder for empty envelopes, a flap opener for opening the envelope flaps, transport elements for transporting the envelopes from the holder to a packing bag on which the envelopes are filled, a feed device for feeding in the envelope contents to and into the packing bag, as well as removal organs for further conveying the filled envelope. The transport members have a funnel-shaped element, referred to below as a funnel, movable at a first angle (W1) to a flap guide of the pannier that is mounted on the inserting device or a mounting rail, for aligning the envelope with the pannier. A funnel is understood here to mean basically any arrangement of two or more sub-units that can receive and pass on the envelope in a funnel-shaped manner as seen in the longitudinal section of the transport plane, for example two parallel rows of opposing rollers (also of different sizes), a row of rollers that are an angle profile forms the funnel, or several angle profiles, as detailed below. Furthermore, the transport members comprise at least one pulling means that temporarily interacts with the flap guide of the pannier and is movable at a second angle (W2) to the flap guide in order to pull the envelope at least partially, but preferably completely, onto the pannier. The envelope is pushed onto the packing bag by the transport and counter rollers and at the latest from the point in time when the rear edge of the envelope is no longer in engagement between the transport and the Counter-rolling is, preferably earlier, in order to prevent buckling, pulled onto the pannier by one or more lifting rollers until the envelope bottom is against the front edge of the pannier.

The funnel and the drawing-up means, which can for example preferably comprise at least one drawing-up roller, are controlled by means for synchronization which are likewise provided. The funnel and opening means are moved from a first position, when the envelope flap is received by the funnel, to a second position after the envelope flap has been placed on the outside of the flap guide facing away from the sheet guide or the guide of the contents, whereby a transport angle (Wt ), between the fed envelope and the flap guide or a plane K comprising the flap guide, can be varied while the envelope is being pulled onto the pannier in order to allow the envelope to be opened easily, whereby the front edge or tip of the pannier in the transport direction is inserted into the envelope can be. The means for synchronizing the movement are advantageously dimensioned or controlled in such a way that the movement that begins immediately after the envelope flap has been placed on the flap guide is completed after the flap fold has been placed on the flap guide, i.e. essentially within one flap length. The envelopes can be fed from above or below, the transport angle (Wt) in the first position being between 15 ° and 45 °, preferably between 20 ° and 40 °, particularly preferably approx. 30 ° ± 5 °. In the second position the transport angle (Wt) is less than in the first position, preferably between -10 ° and 10 °, particularly preferably between 0 ° and 6 °.

Synchronous motors can be used as the means for synchronizing the movement of the funnel and the drawing-up means, but preferably mechanical transmission means such as toothed wheels, toothed belts, chains, drive belts, which particularly preferably comprise a guide curve, because of their greater robustness and lower manufacturing costs. The latter, which can be designed as a cam disk or cam, for example, has a particularly high level of stability and accuracy at low costs and low maintenance requirements in the case of a rapidly oscillating operation of the moving parts, as is the case here. The funnel built to guide the envelopes passing through in the transport plane can be constructed in a particularly simple manner by means of two angle profiles which are arranged on opposite sides and transversely to the transport direction. The angle profiles are arranged parallel and against each other, whereby a deflection point of the transport plane or the transport path of the envelope can be determined (e.g. in position II. The angle profiles are advantageously open on the side or at least run over the entire width of the transport plane or even beyond it, so that envelope blanks of different widths can be transported, whereby the funnel or the angular profiles can be mounted on a common funnel base that can be moved by the synchronization means.

In order to transport the envelope through the funnel onto the packing bag up to the opening means, a transport roller can be arranged from the funnel against the transport direction of the envelope (upstream), which cooperates with a preferably resiliently pressed counter roller. A removal roller and a further removal element interacting with this can be provided from the packing pocket in the transport direction of the envelope (downstream) in order to further transport the filled envelope from the packing pocket. The further removal element can be a segment, preferably a segment that can be resiliently pressed onto the removal roller, for example a segment made of elastic material at least in the surface area or a segment that can be resiliently adjusted. A transport roller can advantageously be arranged in this area between the transport and removal level in order to interact alternately, or at least partially at the same time, on the one hand with the counter-roller as the transport element and on the other hand with the further removal element itself as the removal element. Such an arrangement is particularly economical, both in terms of the construction and the speed of the enveloping process, because here, while the envelope to be fed is already running between the transport roller and counter-pressure roller of the packing bag, the envelope filled from the previous filling cycle is transported away between the same transport roller and the segment can. The removal angle (Wa) from the front edge of the pannier is advantageously pointed downwards to prevent the To prevent the contents of the envelope during removal. The evacuation angle (Wa) formed between a plane spanned between the front edge of the packing bag and the center line of an envelope guide gap arranged between the evacuation / transport roller and the further evacuation element and the plane K comprising the flap guide is advantageously in a range between 1 ° to 12 ° elected. In spite of the adjustable high and accelerating transport or removal speeds, such a small acute angle is surprisingly sufficient to prevent the envelope contents from slipping out or slipping out of place in cooperation with the removal members. In the case of an envelope feed from below, the angle can be selected between 1 ° and 6 °, but preferably between 2 ° and 4 °, with an envelope feed from above, the angle can be between 5 ° and 12 °, preferably between 6 ° and 10 °, always directed downwards. In principle, such an inserting device can and usually will also comprise further transport and / or removal members such as further rollers, belts and / or segments.

A flap opener arranged downstream, preferably in the area of the holder for empty envelopes with a closed flap, can be designed, for example, as an opener claw arranged on a circumference. As an alternative or in addition to supporting the opening claw, the flap opener can comprise a blowing unit for generating an air flow directed under the envelope flap.

To feed the envelope contents, the feed device can comprise fingers attached to toothed or drive belts or chains. These can be guided, for example, through slots in the pannier from one side over the other side of the feed plane. Alternatively, the transport fingers can also be guided between the slats of a segmented packing bag as described below.

The infeed angle of the funnel or the movable pulling means with respect to a plane defined by the flap guide can be chosen to be the same or different for both angles W1 and W2, depending on the geometric conditions, for example in a range between 70 ° to 150 ° including the limit values . For example, the first angle (W1) can be in a range from 90 ° to 150 °, particularly preferably in a range from 110 ° to 130 °, to the plane K comprising the flap guide, whereas the second angle (W2) is in one Range from 70 ° to 110 °, preferably in a range from 80 ° to 100 ° to the plane K comprising the flap guide. The flap guide side is preferably selected to be essentially horizontal, so that the plane K is preferably essentially identical to the horizontal plane. Both the first and the second angle are preferably also variable by pivoting them in, for example by means of a rotatable mounting of the funnel and / or the pulling means or corresponding guidance of the two transport members.

In order to additionally support the opening of the envelope and thus to make it easier to pull it onto the pannier, preferably adjustable cones can be provided between the funnel and the pulling means or pulling roller which laterally delimit the flap guide plane.

In order to be able to load the inserting device advantageously with different envelopes and envelope contents formats, in particular different document formats, a multipart packing bag can be provided. Such a packing bag can in principle also be used on other inserting devices which are suitable for different envelope or envelope content formats. The pannier has a center line M in a plane K, as well as several lamellae arranged parallel to the center line M with the respective flap guide in the flap guide plane K. Each lamella is assigned a sheet guide spaced from the respective flap guide, which defines the packing space in which the envelope contents are fed. The lamellas are arranged separately from one another on the inserting device or a mounting rail, with additional means for moving the side lamellas that are outer with respect to the center line, including the sheet guides assigned to them, in order to move them essentially perpendicular to the center line and parallel to or from one another . In particular for processing wider envelope or envelope content formats, it is advantageous if at least one inner lamella is provided in a stationary manner between the outer lamellae. These outer lamellas, also called side lamellas, can be designed as an angle or at least partially as a U-profile with an outwardly directed base, so that the envelope contents are protected and / or guided on both sides by the U-profile.

The sheet guide can advantageously, for example, to better guide envelope contents of different thicknesses, at least in a front area arranged at the front with respect to the envelope feed or for the entire sheet guide to the flap guide or to the plane K, preferably with a vertical deviation of up to 10 degrees be resilient. For example, a leaf guide made of resilient material can be firmly connected to the lamella or a mounting rail in the rear area and then extend in the shape of a finger into the front area of the lamella, obliquely, in particular directed towards it at an acute angle. When inserting the envelope contents, which can also be supported by an inclined plane on the sheet guide and / or lamella, the envelope contents are supported by the finger-like spring of the sheet guide, which prevents premature contact with the envelope. The spring action of the sheet guide is advantageously selected so that envelope contents of different thicknesses can be fed in at a constant speed. In the case of thick envelope contents, this spring also prevents the envelope from being ejected prematurely. This allows the mechanical stress when inserting the envelope contents for the opened envelope can be reduced and excessive deformation or even tearing avoided. Further alternatives, such as, for example, a blade guide pressed on by springs, or blade guides pressed on by spring-loaded hinges, can also be used.

Due to the spring action, the envelope is stretched so that, on the one hand, envelope contents of various thicknesses can be processed and, on the other hand, the envelope is braked so that the contents are only pushed out of the bag after the insertion process has been completed and not during the process.

The adjusting means for moving the side lamellas can comprise electrical or mechanical means, preferably an adjusting spindle. To guide the contents of the envelope, the outer lamellae are advantageously closed on the respective outer side surface. In contrast, the two side surfaces of the at least one inner lamella are designed to be open.

In a method according to the invention for operating an enveloping device as described in more detail above, the flap of the envelope of a stack of envelopes stored in the holder is first opened in a known manner with a flap opener. The envelope is then transported by transport devices from the holder to a packing bag on which the envelopes are filled. The envelope contents are fed by means of a feed device fed to the packing bag and then the filled envelope is conveyed on by removal devices.

In order to enable the most precise possible guidance of even different envelope formats, the envelopes are aligned in the direction of the packing bag by a movable funnel, the latter being moved at a first angle (W1) to the flap guide of the packing bag. At the same time, at least one pulling means, preferably a pulling roller, moved at a second angle (W2) to the flap guide, pulls the envelope at least partially, but preferably completely, onto the packing bag, the pulling means or the pulling roller (s) at least temporarily, for example periodically , interacts with the pannier. Furthermore, means for synchronizing the movement of the funnel and the pulling means are used, which move them from a first position when the envelope flap is received by the funnel into a second position after the envelope flap has been placed on the flap guide. As a result, a transport angle (Wt) between the fed envelope and the flap guide is varied while the envelope is being pulled onto the packing bag in order to make it easier to open the envelope. In position I, the transport angle (Wt) is advantageously selected in a range between 15 ° and 45 °, preferably between 20 ° and 40 °, particularly preferably approx. 30 ° ± 5 °. In position II, the transport angle is set in a range of ± 10 °, preferably between 0 ° and 6 °, to the flap guide or flap guide side.

The angles W1 and W2 can be selected, for example, in a range between 70 ° and 150 ° that includes the limit values. The first angle (W1) is selected in particular in a range of 90 ° to 150 °, preferably in a range of 110 ° to 130 °, which includes the limit values, in relation to the plane K which includes the flap guide, whereas the second angle (W2) is in particular in a range comprising the limit values from 70 ° to 110 °, preferably in a range comprising the limit values from 80 ° to 100 ° to the plane K comprising the flap guide. Angles W1 and W2 are preferably changed by a rotary movement during the infeed from position I to position II and vice versa, for example within the above-mentioned range, wherein the change in angle along the infeed path can be small. This is particularly advantageous for the funnel, since it also allows the incline of the funnel to be changed slightly and the envelope to be better aligned with the packing bag. The infeed can take place, for example, along a circular path or a movement similar to a circle. This enables particularly reliable and precise motion control.

Individual aspects of the invention can be combined with one another, provided that they are not obviously mutually exclusive.

The principle of the present invention and various examples of possible embodiments are discussed below with reference to the figures.

Fig. 1

ein Schema einer erfindungsgemässen Kuvertiervorrichtung;

Fig. 2

eine schematische Darstellung der Kuvertzuführung;

Fig. 3

eine schematische Darstellung des Aufziehens eines Kuverts auf die Packtasche;

Fig. 4

eine schematische Darstellung des Abtransports eines Kuverts von der Packtasche;

Fig. 5

ein Ausführungsbeispiel entsprechend Fig. 3;

Fig. 6

eine schematische Darstellung eines Synchronisiermechanismus

Fig. 7

eine schematische Darstellung einer Kuvertiervorrichtung mit Kuvertzufuhr von unten;

Fig. 8

eine 3D-Ansicht einer Packtasche;

Fig. 9

eine Rückansicht einer Packtasche;

Fig. 10

eine Lamelle.

Show:

Fig. 1

a scheme of an inventive inserting device;

Fig. 2

a schematic representation of the envelope feed;

Fig. 3

a schematic representation of the pulling of an envelope onto the pannier;

Fig. 4

a schematic representation of the removal of an envelope from the packing bag;

Fig. 5

an embodiment accordingly Fig. 3 ;

Fig. 6

a schematic representation of a synchronizing mechanism

Fig. 7

a schematic representation of an inserting device with envelope feed from below;

Fig. 8

a 3D view of a pannier;

Fig. 9

a rear view of a pannier;

Fig. 10

a slat.

Fig. 1 shows a diagram of an inserting device according to the invention with envelope feed from above. The envelopes stored in a holder 6 for empty envelopes with the flap facing downwards in the transport direction are opened by a flap opener 7, which comprises, for example, an opener claw 25, with the opened flap forward by at least one transport element 8 in the direction of the packing bag 9 transported. To pull it onto the pannier, the envelope 2 is aligned with the pannier 9 through the funnel 12. Funnel 12 and opening cone 27 help open the envelope 2 to make it easier to open to open the pannier. After the envelope has been opened, it is filled with the envelope contents 5 supplied via the feed device 10. The envelope is then transferred to the removal elements 11 and transported away, preferably without interruption of the movement of the envelope contents 5, by at least one insertion finger 26, which guides the envelope and contents here into the area of the funnel.

Figs. 2 to 4 show functional sketches of the envelope feed, the opening and the removal of the envelope. As in Fig. 2 shown, the envelope 2 with the envelope flap 3 in front, between a counter-rotating pair of rollers, here the driven transport roller 20 and the counter roller 21, which is advantageously pressed resiliently against the transport roller 20, through the funnel 12 into a transport angle (Wt), for example at an angle between 25 ° and 35 °, the flap guide side of the bag 9 is supplied. The funnel 12 and the winding roller 14 are located in a position I at a distance from the flap guide 13 or with respect to a plane K encompassing the flap guide side. In the case of a completely planar flap guide side, this is completely encompassed by the plane K. Usually, however, the surface of the flap guide side is also formed by ribs or other elements on the lamellae, which are spaced apart from one another. These elements can also penetrate the K level. For example, on the pannier from an area near or on the front edge of the pannier, as in FIG Figure 8 shown, ribs 33 sloping towards the rear, which form the front edge of the envelope flap and thus the entire flap can be raised so that the finger of the feed device can pass under it while it extends itself over the flap guide plane K of the pannier. The finger looks just above the level of the pannier so that no document is lost in the pannier. The flap guide side or plane K are preferably aligned essentially horizontally.

After the tip of the envelope flap 3 has been placed on the flap guide 13, the funnel is fed at an infeed angle W1, the pull-up roller at an infeed angle W2, in each case to the flap guide side or the plane defined by it. The first and second angles are advantageously selected in a range of 70 ° to 150 ° which includes the limit values.

The angles W1 and W2 can be different or identical, depending on the technical requirements and space conditions of the actually implemented inserting device. The delivery takes place via in Fig. 3 schematically illustrated means 16 for synchronization, which advantageously comprise a guide cam 17, for example in the form of a cam disk or cam. The infeed can take place in a straight line or by means of a pivoting movement. The delivery of the funnel 12 during the passage of the envelope enables the envelope 2 to be opened easily, which is achieved by the examples shown in FIG Fig. 5 shown cones 27 can be further supported. Advantageously, the movement of the funnel from position 1 is immediately before or when the Flap tip on the flap guide side, until it passes the foremost edge of the packing bag 9 through the flap fold 4, that is to say in the region of approximately one flap length l. Immediately before reaching position II and / or also in position II, the funnel can push the envelope down so far that a slightly negative transport angle Wt of the envelope to the flap guide plane is set. The transport angle in position II is advantageously in the range of ± 10 °, preferably between 0 ° and 6 °, to the flap guide. In this position II, the envelope 2 is now completely pulled onto the pannier with the help of the pull-up roller 14, which is lowered synchronously with the envelope flow, and the envelope contents 5 are pulled through the feed device 10, for example at least one finger 26 attached to a toothed belt or chain and a feed drive 32 comprises, pushed through the packing pocket 9 into the envelope 2. Then, after the pull-up roller 14 has been lifted off the opened, now packed envelope 2 ', as in FIG Fig. 4 shown, the envelope is moved by fingers 26 in the direction of the segment 23 interacting with the transport roller 20 and / or the separate removal roller 22. As an alternative, the winding roller 14 can also initially be operated in the opposite direction to the winding direction, in the removal direction, in order to accelerate the envelope to the speed of a continuously fed envelope content, whereby, for example, particularly thin or sensitive envelopes can also be filled without the speed of the envelope contents passing through to reduce the pannier or without having to slow it down too much. Then in In each case, the pull-up roller 14 and the funnel 12 are synchronously returned to position I, while the removal elements 11, 20, 23 continue to convey the envelope. The evacuation angle Wa is directed downward from the flap guide in order to prevent the envelope contents 5 from slipping out or out of place. At as in Figs. 1 to 5 shown enveloping devices, in which the envelope is fed from above, a downward transport angle Wa of 5-12 °, preferably between 6-10 °, can advantageously be selected.

Analogous to the in Fig. 3 The scheme shown for pulling an envelope onto the pannier is shown in Fig. 5 an example according to the invention of an inserting device shown in detail. In addition to the above-mentioned functional elements such as the packing bag 9 and the pull-up roller 14 coupled with the movement of the funnel 12, the gear wheel 32 of the feed drive, an advantageous, at least in the surface area, an elastic segment 23 as well as transport and counter rollers 20, 21, are also further details of the in Fig. 1 To see the inserting device shown on a smaller scale. These include, for example, further transport 8 and removal members 11, which comprise further rollers and segments 24 as well as transport and drive belts. Furthermore, a cone 27 arranged between the funnel 12 and the pull-up roller 14 is used to laterally limit the flap guide plane K and to assist in opening the envelope, as well as details of the funnel base 19 to which the funnel 12 is attached and via which it is connected to the pull-up roller 14 is presented, layed out. The one built up from two angle profiles 18 As described above, the funnel 12 guides the envelope directly before and during the opening onto the pannier; at the same time, in this case, i.e. when the envelope is fed in from above, the lower angular profile 18 can be shaped so that its lowest surface acts as a guide surface during removal of the envelope from the packing bag is used before it is grasped by the elastic element 23 and the transport roller and conveyed on in the direction of the removal elements 11.

Fig. 6 shows an example of a possible embodiment of a synchronizing mechanism in a schematic detailed view. Here, a cam 17 rotatably mounted on the inserting device raises and lowers a base rod 39 which is connected to the inserting device 1 via a pivot 40 and on which in turn two transmission rods 41, 42 with flying, ie pivot points 48, 47 moved with respect to the inserting device are attached. These are in turn connected with floating pivot points 49, 50 with the functional linkage 43 of the winding roller 14 or the functional linkage 45 of the funnel base 19, shown here with dashed lines, in order to transmit the stroke of the base linkage. Due to the additional rotatable mounting of the functional rods 43, 45 on the inserting device 1, the pull-up roller 14 or the funnel base 19 with the funnel 12 attached to it are moved between positions I and II along the circular movement curves 51, 52 or in the direction of or from the flap guide side , or a level K encompassing this, shifted away. If the winding roller 14 or the funnel base 19 and the funnel 12 are not used, as here shown, attached to the functional linkage 43, 45 but, for example, to the transmission linkage 41, 42, a movement curve deviating from the circular shape can be set. The same applies if the funnel base 19, for example, via the pivot point 50 and / or the funnel 12 itself are additionally attached to the funnel base so as to be pivotable.

Similar acting synchronizing mechanisms with other means are basically known to the person skilled in the art and can be used accordingly, but a mechanism based on curves and rods, as shown, offers particular advantages in fast motion sequences which, as necessary here, also require high precision.

Fig. 7 represents a further embodiment of an enveloping device. Here, the envelope is fed by transport members 8 and transport roller 20 from obliquely right below onto the packing bag 9, the outside of the flap guide 13 is now directed downwards. Here, too, the transport roller 20 takes over the feed into the funnel 12, which is in turn coupled to the winding roller 14 and which in turn guides the envelope flap from below onto the flap guide. When envelopes are fed in from below, a correspondingly synchronized movement of the funnel 12 and the winding roller 14 is carried out in accordance with what has been described above. The insertion finger or fingers 26 now guided over the packing pocket 9 push the contents of the envelope through the packing pocket 9 into the envelope in order to then convey the envelope with the contents on to the removal organs 11. Finger 26 can move over here in the direction of the removal plane Flap guide 13 and funnel are also out. Here, too, the discharge angle Wa is directed slightly downwards with respect to the plane formed by the flap guide 13, for example in a range of 1-6 °.

In Fig. 8 an adjustable packing bag according to the invention is shown, which can also be used advantageously on other inserting devices if these are to be designed flexibly with regard to the envelope blanks and packing dimensions. According to the embodiment shown there, three so-called lamellae 28 are mounted on or under a mounting rail 15, here preferably an adjusting rail 35. While the one inner lamella 28 ″ here is fixedly attached to the assembly or adjustment rail, the outer lamellae 28 'can be moved transversely to the transport or removal direction in order to be able to optimally adjust the pannier 9 to different envelope widths In the present example, the width is made with a manually operated adjusting spindle 31, but this can also be provided automatically, eg electrically driven.

Fig. 9 shows a rear view of the in Fig. 8 The packing bag 9 shown here also shows auxiliary surfaces 34 which are arranged upstream of the inner guide surfaces of the individual lamellae in the feed direction of the envelope contents in order to enable the contents to be pushed into the packing bag 9 more easily. To a possible To ensure that the envelope 2 is securely pulled onto the packing bag 9, the side lamellas 28 'can be positioned in the area of the front edge facing in the direction of the transport and removal plane, as in FIG Fig. 8 shown, inwardly, in the direction of the fixed inner lamella, or the center line M, be formed protruding. The outer side surfaces of the lamellae 28 'are closed in order to guide the envelope contents 5 laterally and to prevent the envelope contents from touching the envelope before the insertion process is complete.

Fig. 10 shows an example of the side view of an outer lamella 28 'seen from the inside. Flap guide 13, as shown here above, and sheet guide 30 below, are both provided with an auxiliary surface in the direction of the feed device 10. The side lamella 28 'comprises a lamellar foot 37, which can be produced, for example, as a one-piece angle with the flap guide 13 in order to increase the stability of the pannier. Alternatively, the lamella 28 'can be at least partially designed as a U-profile with an outwardly directed base, so that the envelope contents are guided and / or supported by the outer lamellae through the U-profile.

The blade guide 30 can be fastened to the lamellar foot 37 in the rear area with a spring stop 38. The blade guide 30 made of a resilient material is positioned at an oblique angle to the inner surface of the flap guide, so that it ends in the front area in the immediate vicinity of the flap guide or even rests against it. Only by inserting the contents of the envelope the sheet guide 30 is pressed down and releases the path into the envelope or in the transport direction. As a result, envelope contents which differ in terms of their thickness can also be safely fed at the same speed. The maximum thickness of the envelope content is determined in this case by a distance z, in the rear area, between the inner guide surfaces of the flap guide 13 and the sheet guides 30. As with Fig. 7 mentioned, in the case of an inserting device 1 'with feeding from below, the packing bag or the lamellas of the packing bag are reversed, ie mounted with the flap guide facing downwards. The flap guide plane K can in this case also be identical to the horizontal plane, rib 33 protrudes from the horizontal plane or the surface of the pannier here downwards and runs obliquely upwards towards the rear.

REFERENCE MARK

1

Inserter

1'

Inserter with feeding from below

2

envelope

2 '

filled envelope

3

Envelope flap

4th

Flap fold

5

Envelope contents

6th

Holder for empty envelopes

7th

Flap opener

8th

Transport organs

9

Pannier

10

Feeding device

11

Evacuation organs

12th

funnel

13th

Flap guide (side)

14th

Winding agent, winding roller

15th

Mounting rail

16

Means of synchronization

17th

Guide curve / cam

18th

Angle profile

19th

Funnel base

20th

Transport roller

21st

Counter-role

22nd

Removal roller

23

further removal organ, segment

24

further roles, segments

25th

Opener claw

26th

finger

27

cone

28

Lamella

28 '

outer lamella

28 "

inner lamella

29

outer side surface of the lamella

30th

Blade guide

31

Adjusting means, adjusting spindle

32

Feed drive

33

rib

34

Auxiliary surface

35

Adjustment rail

36

Assembly stop

37

Lamellar foot

38

Spring stop

39

Base linkage

40

fixed pivot point base linkage

41

Transmission linkage to transport roller

42

Transmission linkage to hopper

43

Functional linkage for transport roller

44

fixed pivot point functional linkage

45

Functional linkage for funnel

46

fixed pivot point functional linkage

47, 48, 49, 50

flying pivot point linkage

I.

first position

II

second position

l

Flap length

b

Envelope width

z

maximum thickness of the envelope content

M.

Center line

T, T ', T "

Transport level of the envelopes

K

Level that includes the flap guide side

W1

Infeed angle of the funnel to the flap guide plane

W2

Infeed angle of the winding roller to the flap guide plane

Wa

Evacuation angle

Wt

Transport angle

Claims (32)

1. An inserting device for inserting the contents of an envelope (5) into an envelope (2), wherein the inserting device (1, 1') comprises a holder (6) for empty envelopes, a flap opener (7) for opening an envelope flap (3) of the envelope (2), transport members (8) for transporting the envelopes (2) from the holder (6) to a packing pocket (9), on which the envelopes are filled, a feed device (10) for feeding the envelope contents (5) to the packing pocket and into the packing pocket (9), and removal members (11) for the further transport of the filled envelope (2'),
   wherein the transport members (8) comprise a funnel (12), which is movable at a first angle (W1) relative to a flap guide (13) of the packing pocket (9) and mounted on the inserting device (1, 1') or on a mounting rail (15), for aligning the envelope (2) with the packing pocket (9),
   as well as at least
   one pulling means (14), cooperating temporarily with the flap guide (13) of the packing pocket (9) at a second angle (W2) to the flap guide (13), for at least partially drawing the envelope (2) onto the packing pocket (9), and
   means for synchronising (16) the movement of the funnel (12) and the pulling means (14), whereby the funnel (12) and the pulling means (14) are movable from a first position (I) when the envelope flap (3) is received by the funnel (12), to a second position (II) after the envelope flap (3) has been placed on the flap guide (13), and
   a transport angle (Wt), between the fed envelope (2) and the flap guide (13) can be varied during the drawing of the envelope onto the packing pocket (9) in order to allow the envelope to be opened,
   characterized in that
   the packing pocket (9) is arranged immovably during the inserting operation.
2. Inserting device according to claim 1, characterized in that the at least one pulling means comprises a pulling roller (14) .
3. inserting device according to claim 1, characterized in that in the first position (I) the transport angle (Wt) is in a range comprising the limiting values between 1° and 45°, preferably between 20° and 40°, particularly preferably at approximately 30°± 5°.
4. Inserting device according to one of the preceding claims, characterized in that in the second position (II) the transport angle (Wt) is smaller than in the first position, preferably in a range comprising the limiting values between - 10° and 10°, particularly preferably between 0° and 6°.
5. Inserting device according to one of the preceding claims, characterized in that the means for synchronizing (16) comprise synchronous motors, but preferably mechanical transmission means such as gears, toothed belts, chains, drive belts, particularly preferably a guide curve (17).
6. Inserting device according to one of the preceding claims, characterized in that the guide curve (17) is a cam disk or a cam.
7. inserting device according to one of the preceding claims, characterized in that the funnel (12) comprises two angular profiles (18) arranged in parallel and against each other, on opposite sides and transversely to the transport direction, mounted movably by the synchronizing means.
8. Inserting device according to claim 1 to 6, characterized in that the funnel (12) comprises two angular profiles which are mounted in parallel and opposite, on opposite sides and transversely to the transport direction, on a common funnel base (19), movable by the means (16).
9. Inserting device according to one of the preceding claims, characterized in that a transport angle (Wa) formed between a plane K comprising the flap guide (13) and the transport direction of the filled envelopes (2 ') is directed downwards in an acute angle, preferably in range between 1° to 12 ° comprising the limiting values.
10. Inserting device according to one of the preceding claims, characterized in that from the funnel (12) against the transport direction of the envelope (2) (upstream) there is arranged a transport roller (20) cooperating with a, preferably resiliently pressed on, counter-roller (21), in order to transport the envelope (2) through the funnel (12) onto the packing pocket (9) to the pulling means (14).
11. Inserting device according to one of the preceding claims, characterized in that a removal roller (22) and a further removal element (23) cooperating with this are provided in the removal direction of the filled envelope (2') (downstream) from the packing pocket(9) in order to forward the filled envelope (2') from the packing pocket(9).
12. Inserting device according to one of claims 10 to 11, characterized in that the transport roller (20), (22) is arranged between the transport plane and the removal plane in order to cooperate alternately or simultaneously with the counter-roller (21) and further removal element (23).
13. Inserting device according to one of claims 10 to 12, characterized in that the evacuation angle (Wa) is pointed downward from the front edge of the packing pocket (9), preferably in a range between 1° and 12° encompassing the limiting values.
14. Inserting device according to one of claims 11 to 13, characterized in that the further removal element comprises a segment (23), preferably a segment which can be pressed resiliently onto the transport / removal roller.
15. Inserting device according to one of the preceding claims, characterized in that removal members (11) and/or removal elements comprise further rollers and/or segments.
16. Inserting device according to one of the preceding claims, characterized in that the flap opener (7) is designed as at least one opening claw (25) which is arranged on a circumference.
17. Inserting device according to one of the preceding claims, characterized in that the flap opener (7) comprises a blowing unit for generating an air flow directed under the envelope flap (3).
18. Inserting device according to one of the preceding claims, characterized in that the feed device (10) comprises fingers (26) attached to toothed belts, drive belts, or chains.
19. Inserting device according to one of the preceding claims, characterized in that the first angle (W1) lies in a range from 90° to 150°, preferably in a range from 110° to 130° to the plane K which includes the flap guide.
20. Inserting device according to one of the preceding claims, characterized in that the second angle (W2) lies in a range from 70° to 110°, preferably in a range from 80° to 100° to the plane K which includes the flap guide.
21. Inserting device according to one of the preceding claims, characterized in that the first angle (W1) and / or the second angle (W2) is variable, in particular variable by being pivoted.
22. Inserting device according to one of the preceding claims, characterized in that preferably adjustable cones (27) are provided laterally between the pulling means (14) and the funnel (12), which at least limit the flap guide plane (13) laterally, to open the envelope (2) easily.
23. Inserting device according to one of the preceding claims, characterized in that the packing pocket(9) comprises a center line M in the plane K, as well as several slats (28) arranged in parallel to the center line M, with the respective flap guide (13) in the plane K, with at least two outer lamellas (28'), with respect to the center line, to which a sheet guide (30) is assigned, spaced apart from the respective flap guide (13), and the lamellas (28) are arranged separately from one another on the inserting device (1, 1'), or on the mounting rail (15), (35), wherein adjusting means (31) for moving the side lamellae (28') are arranged in order to move them in parallel substantially perpendicularly towards the center line.
24. Inserting device according to claim 23, characterized in that between the outer lamellae (28') at least one inner lamella (28") is arranged in a stationary manner.
25. Inserting device according to one of claims 23 to 24, characterized in that the sheet guide (30) is designed to be resilient towards the flap guide (13) at least in a front area, which is arranged in front with respect to the envelope feed.
26. Inserting device according to one of claims 23 to 25, characterized in that the adjusting means (31) comprise electrical and/or mechanical means, preferably an adjusting spindle (31).
27. Inserting device according to one of claims 23 to 26, characterized in that the outer lamellae (28') are closed on the respective outer side surface.
28. Inserting device according to one of claims 23 to 27, characterized in that the outer lamellae (28') at least partially form a U-profile with an outwardly directed base, so that the envelope contents (5) is to be led on both sides through the U-profile.
29. Inserting device according to one of claims 24 to 28, characterized in that the at least one inner lamella (28 ") is open on both side surfaces.
30. A method for operating an inserting device (1), (1') according to one of the preceding claims, wherein the flap (3) of the envelope (2), which is closest to an envelope removal opening from a stack of envelopes deposited in the holder (6), is opened with a flap opener (7), transport elements (8) transport the envelope (2) from the holder (6) to a packing pocket (9) on which the envelopes (2) are filled, and the envelope contents (5) is fed to the packing pocket (9) by means of a feed device (10), and removal members (11) further convey the filled envelope, whereat the movable funnel (12) aligns the envelopes in the direction of the packing pocket(9), being moved at a first angle (W1) to the flap guide (13) of the packing pocket(9), and a pulling means (14) which is moved at a second angle (W2) to the flap guide (13), pulls the envelope (2) at least partially, but preferably completely, onto the packing pocket(9), whereat it interacts at least temporarily with the packing pocket(9), whereat furthermore means (16) for synchronizing the movement of the funnel (12) and of the pulling means (14) move them from a first position (I) when the envelope flap (3) is received by the funnel (12), into a second position (II) after placing the envelope flap (3) on the flap guide (13) whereby a transport angle (Wt) between the fed envelope (2) and the flap guide (13) is varied, while the envelope (2) is being pulled onto the packing pocket (9), in order to facilitate opening of the envelope (2), characterized in that the packing pocket is not moved during the inserting process.
31. The method according to claim 30, characterized in that the first angle (W1) and the second angle (W2) are moved in a range of 70° to 150°, comprising the limiting values, to the plane K which comprises the flap guide.
32. The method according to any one of claims 30 or 31, characterized in that the first angle (W1) and the second angle (W2) are changed by a rotary movement during the infeed from position (I) to position (II) and vice versa.

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