阅读说明：本技术 用于制造容纳在包装中的袋的设备 (Apparatus for manufacturing bags contained in packages ) 是由 托马斯·莱德夫斯基 谢尔盖·阿诺欣 克劳斯·巴尔特斯 斯蒂芬·兰贝茨 汉斯·克诺普斯 于 2021-05-12 设计创作，主要内容包括：本发明涉及一种用于制造容纳在包装(150)中含有可冲泡材料的袋(42)的设备,该设备包括适于制造含有可冲泡材料的透水袋(42)的袋制造设备(2),并且包括带有两个密封爪(102；104)的密封站(100),两个密封爪相对彼此可移动,用于将袋(42)密封在围绕袋(42)以U形放置的包装(150)中,其中,密封爪(102；108)被配置成在包装(150)上形成彼此相对的纵向密封(L)和横向延伸的横向密封(Q),其中,至少一个密封爪(102；108)包括第一和第二密封爪元件(104、106；110、112),该第一和第二密封爪元件各自被配置形成纵向密封(L)中的一个和横向密封(Q)的一部分。(The invention relates to an apparatus for manufacturing a pouch (42) containing infusible material contained in a packet (150), the apparatus comprises a pouch manufacturing apparatus (2) adapted to manufacture a water permeable pouch (42) containing infusible material, and comprising a sealing station (100) with two sealing jaws (102; 104), which are movable relative to each other, for sealing the bag (42) in a package (150) placed in a U-shape around the bag (42), wherein the sealing jaws (102; 108) are configured to form a longitudinal seal (L) and a transversely extending transverse seal (Q) opposite each other on the package (150), wherein at least one sealing jaw (102; 108) comprises a first and a second sealing jaw element (104, 106; 110, 112), the first and second sealing jaw elements are each configured to form one of the longitudinal seals (L) and a portion of the transverse seal (Q).)

1. An apparatus for manufacturing a packet containing infusible material contained in a packet, the apparatus comprising: a pouch manufacturing apparatus adapted to manufacture water-permeable pouches containing infusible material; and a sealing station comprising two sealing jaws movable relative to each other for sealing the bag in a package placed in a U-shape around the bag, wherein the sealing jaws are configured to form a longitudinal seal and a transversely extending transverse seal opposite each other on the package,

wherein the content of the first and second substances,

at least one sealing jaw includes first and second sealing jaw elements each configured to form one of the longitudinal seals and a portion of the transverse seal.

2. The apparatus according to claim 1, wherein the first or second sealing jaw element is fixed to a sealing jaw pivot arm whose pivot axis is obliquely aligned with the longitudinal and transverse seals.

3. The apparatus of claim 2, wherein the sealing jaw pivot arm is eccentrically connected via a connecting rod to a drive shaft aligned parallel to the pivot axis.

4. The device according to claim 1, wherein a counter jaw element cooperating with the first or second sealing jaw element is assigned to the first or second sealing jaw element for pressing the package, wherein the respective first and second sealing jaw element are eccentrically connected to the common drive shaft via a sealing jaw connecting rod and the counter jaw element is eccentrically connected to the common drive shaft via a counter jaw connecting rod.

5. The apparatus according to claim 2, wherein assigned to the first or second sealing jaw element for the squeeze packaging is a counter jaw element interacting with the first or second sealing jaw element, wherein the counter jaw element is attached to a counter jaw pivot arm, the pivot axis of which is aligned obliquely with respect to the longitudinal and transverse seals, wherein the pivot axis of the sealing jaw pivot arm and the pivot axis of the counter jaw pivot arm are arranged on opposite sides of a pivot point at which a sealing jaw connection rod engages on said sealing jaw pivot arm or a counter jaw connection rod engages on said counter jaw pivot arm, wherein the sealing jaw connection rod and the counter jaw connection rod are each eccentrically connected to a common drive shaft.

6. The device according to claim 1, wherein two drive shafts are aligned at right angles to each other, each driven by a drive unit and each arranged for driving one of the first or second sealing jaw element and the counter jaw element interacting with the respective sealing jaw element for pressing the package.

7. The apparatus according to claim 1, wherein the first and second sealing jaw elements or the respective first and second counter jaw elements cooperating with the first or second sealing jaw elements are fixed to a sealing jaw pivot arm, the pivot axis of which is aligned obliquely with the longitudinal and transverse seals.

8. The apparatus according to claim 2, wherein the first and second sealing jaw elements or the respective first and second counter jaw elements cooperating with the first or second sealing jaw elements are eccentrically connected via a connecting rod to a drive shaft aligned parallel to the pivot axis.

9. The device according to claim 1, wherein a first and a second sealing jaw element or a respective first and second counter jaw element cooperating therewith are assigned to the first or second sealing jaw element for pressing the packages, wherein the first or second sealing jaw element is eccentrically connected to the common drive shaft via a sealing jaw connecting rod and the first or second counter jaw element is eccentrically connected to the common drive shaft via a counter jaw connecting rod.

10. The device according to claim 1, wherein the first and second sealing jaw elements or the respective first and second counter jaw elements cooperating with the first or second sealing jaw elements are assigned to counter jaw elements interacting with the first or second sealing jaw elements, which counter jaw elements are attached to counter jaw pivot arms, the pivot axes of which are aligned obliquely with respect to the longitudinal and transverse seals, wherein the pivot axes of the sealing jaw pivot arms and of the counter jaw pivot arms are arranged on opposite sides of a pivot point at which a sealing jaw connecting rod is engaged on the sealing jaw pivot arms or a counter jaw connecting rod is engaged on the counter jaw pivot arms, wherein the sealing jaw connecting rod and the counter jaw connecting rod are each eccentrically connected to a common drive shaft.

Technical Field

The present invention relates to an apparatus for manufacturing a packaging unit comprising a pouch containing an infusible material, which pouch is provided in a typical aroma-tight package.

Background

A corresponding device with the preamble feature is known from european patent 2231479B 1. In this previously known apparatus, the bags are first placed in a packaging station between opposite legs of a packaging material which is supplied as a flat web. The bags are placed on a web, the web is folded around the bags, and cut from the supply of packaging material so that a pre-formed length of packaging material contains the bags therein. By folding the packaging material, the edges of the package of the bag have been formed. However, it is desirable to form a U-shaped sealed seam so that the packet is circumferentially closed around the pouch and a fragrance-tight enclosure of the infusible material can be formed within the pouch.

Such infusible material, which is typically tea or dry powder or other insoluble material of the leaves, may be affected in quality and taste by environmental factors, such that the previously mentioned aroma-tight encapsulation may be necessary. This also applies to the present invention.

In the above-mentioned prior art, the U-shaped sealing seam is formed by a sealing device having a plurality of sealing units on the outer circumferential surface of a turntable, each sealing unit having sealing jaws which are pivotable towards each other, which receive the packages together with the bags and which close during a stepwise rotational movement of the turntable in order to seal the U-shaped edges of the packages by welding during the rotational movement of the turntable and to convey the packages thus closed to another station.

This embodiment is based on the consideration that sealing the bags in the package by forming a welded seam requires a longer dwell time in the sealing station than in the previous station, relative to the other stations of the previously known apparatus. The individual work steps in the sealing station can thus be divided in time by rotating the turntable without interrupting or disturbing the cycle time of the entire apparatus.

For effective sealing of the package, in particular by welding, it is necessary to have the package and its edges between sealing jaws, which are placed against the package, and to introduce sufficient heat into the package to melt it, so that the mutually adjoining webs of the package melt and weld together. Due to the heat applied and the necessary cooling time, such a seal cannot be immediately stabilized, so that the packaging unit consisting of the bag and the packaging can usually only be further processed after a certain cooling time has been observed.

Since the apparatus for manufacturing the packaging unit is an apparatus for mass production of consumables, it is important that the packaging unit has a fast cycle time and economical production.

Disclosure of Invention

It is an object of the present invention to improve the previously known apparatuses in this respect, in particular to provide a sealing station which allows faster sealing of the pouches in the packages.

To this end, the invention proposes a device with the features of claim 1.

The apparatus according to the invention comprises a bag making apparatus in a known manner. This is not different from the bag making apparatus described in european patent 2231479B 1. Alternatively, the arrangement may be made in accordance with european patent 2626318 a1, european patent 1479612 a1, european patent 2572996 a1, or european patent 1153833 a 1. In this case the bag manufacturing apparatus may be designed such that a string is also connected thereto together with the bag, the other end of the string being provided with a label, as is known, for example, from european patent 2231479B 1.

The apparatus according to the invention also has a sealing station for closing the bags together with the thread and the label in the package, if necessary. The sealing station is typically configured such that the pouches are enclosed in a package in a fragrance-tight manner. Such a package is known, for example, from german patent 29609717U 1. In the arrangement described there, the package is also formed, if necessary, by packaging the bag together with the thread and the label, wherein the unit consisting of the package and the bag is sealed to form a U-shaped seam. To this end, the sealing station may join the opposite layers of the package by means of welding. However, other types of coupling, such as knurling or gluing, are also conceivable. These types of couplings may also be used in combination with each other.

In the sealing station according to the invention, at least one sealing jaw, typically each of the two sealing jaws, has a first and a second sealing jaw element. Each sealing jaw element of a single sealing jaw is configured to form one of the longitudinal seals and a portion of the transverse seal. Usually, two sealing jaw elements are provided which in combination form a U-shaped, almost closed sealing surface and are applied from one side against the packaging material in order to abut the opposite legs of the folded-apart film web against each other and to press them between the two sealing jaws. The sealing surface formed by the single sealing jaw element is thus preferably L-shaped, which abuts the package for sealing.

In contrast to the prior art, in the solution according to the invention each individual sealing jaw provided on one side of the respective package is formed in at least two parts, preferably exactly two parts. The first and second sealing jaw elements may be movable in different directions towards and away from the package. Thus, a space for inserting the package to seal the package and removing the sealed packaging unit can be created in a manner different from the prior art, in which the space is formed by pivoting two sealing jaws.

In the solution according to the invention, the first and second sealing jaw elements of each individual sealing jaw may be moved translationally and/or rotationally to form a respective space. In particular, the two sealing jaw elements may be spaced apart from each other in order to insert the package between them. The first and second sealing jaw elements are normally already in proximity to each other after providing the package with the pouch between the substantially opposite first sealing jaw elements of the upper and lower sealing jaws and the second sealing jaw elements of the upper and lower sealing jaws with the sealing jaws open. In the case of the upper and lower sealing jaws, this is primarily to distinguish between the individual components of the sealing jaws. During sealing, the upper and lower sealing jaws close the package between them. The first and second sealing jaw elements may be provided on the upper and lower sealing jaws, respectively. During sealing, the first, second and third or fourth sealing jaw element, if necessary, are located on one side of the package, respectively.

Preferred configurations are those that achieve equivalent configurations of the sealing jaws on both the upper and lower sides of the package.

The sealing jaw element is preferably L-shaped, wherein one leg forms a sealing surface for longitudinal sealing and the other leg forms a part of a sealing surface for transverse sealing. During sealing, the two legs of the part forming the transverse seal usually abut against each other or abut closely against each other, so that a transverse seal can be created which extends continuously from one corner to the other, despite the sealing jaw being divided into a first and a second sealing jaw element.

The solution according to the invention therefore provides the advantage of sealing the package quickly and therefore economically. The package can be inserted more quickly into the space between the sealing jaws, sealed there, and removed from the space after sealing.

For example, if the package is moved by the rotating transport wheel to a sealing position in which the sealing jaws compress the packaging material between them, the space accommodating the bottom of the package folded around the bag may be formed by first and second sealing jaw elements spaced apart on the upper and lower sides. Already near the sealing position, the respective sealing jaw elements are moved towards each other so that they receive the packaging material between them and, finally, at the end of the feed movement, not only cooperate with each other to complete the U-shaped sealing surface but also press the packaging material between them. The transfer wheel and sealing station typically operate with the cycle time of the bag manufacturing facility.

Preferably, the respective sealing jaw element is pivotally mounted, for which purpose a sealing jaw pivot arm is provided which carries the first or the second sealing jaw element. The pivot axis of the sealing jaw pivot arm extends obliquely with respect to the longitudinal and transverse seals and thus transversely with respect to the lever of the previously mentioned L-shaped sealing surface. Preferably, the inclined position is such that the pivot axis extends at an angle of exactly 45 ° to the longitudinal and transverse seals, which are generally disposed at right angles to each other. However, the angle may deviate from this preferred orientation by +/-15 °, preferably +/-10 °, particularly preferably +/-5 °.

The sealing jaw pivot arm may be driven by torque transmitted by the pivot shaft. For example, the sealing jaw pivot arm may be arranged on an axis of the motor defining the pivot axis.

When pivoted, the inclined position of the pivot shaft causes the two legs of the L-shaped sealing jaw element to move away from the longitudinal and transverse edges of the package. The longitudinal edges are formed by the opposite longitudinal edges of the legs, while the transverse edges extend generally at right angles to them and are disposed opposite the folds. With good kinematics, it is preferred that the pivot axis is offset with respect to a sealing plane in which the package is arranged in the sealing position. Although the sealing surfaces during sealing usually extend parallel to the plane containing the pivot axis, the pivot axis is significantly offset from this plane.

The sealing jaw pivot arm is generally substantially L-shaped, with one end of the sealing jaw pivot arm pivotally mounted about a pivot shaft and the other end carrying an associated sealing jaw element. Between these two ends, there is usually a connecting rod joined, usually in an articulated manner, to the pivot arm. The connecting rod is driven via a drive shaft to which the connecting rod is eccentrically arranged. Typically, the connecting rod is freely rotatable about the eccentric of the drive shaft. The drive shaft usually extends parallel to the pivot axis, because not only the sealing jaw pivot arm is driven via the drive shaft, but also the counter jaw pivot arm interacting with one of the first or second sealing jaw elements affects the sealing of the packaging material together with this sealing jaw element. The reverse pawl pivot arm is also pivotally mounted (but with respect to pivotal movement in the opposite direction when the drive shaft is driven) on the opposite side of the pivot point relative to the connecting rod. Thus, the pivot shaft associated with the sealing jaw (hereinafter referred to as the sealing jaw pivot shaft) occupies the point of engagement of the connecting rod between itself and the other pivot shaft (hereinafter referred to as the reverse jaw pivot shaft).

In the above-described preferred configuration, in which each sealing jaw is formed by two jaw elements formed in an L-shape, the apparatus preferably has two drive shafts, wherein each drive shaft is assigned a drive unit as a motor. Thus, each of the two drive shafts has an independent drive. The drive is preferably a servomotor.

A respective drive shaft is provided for driving one of the sealing jaw elements and one of the counter jaw elements. The counter jaw element is a counter jaw element cooperating with a corresponding sealing jaw element for pressing the package. Then, a single drive shaft is preferably assigned to the upper and lower jaw elements and moves them towards each other, so that the two jaw elements, i.e. the sealing jaw element and the counter jaw element, are moved in a synchronized manner by the single drive shaft. The second drive shaft similarly provides another pair of jaw elements which press the package between them. Each drive shaft extends parallel to the pivot axis of the sealing jaw associated with the drive shaft and the pivot axis of the reverse jaw pivot arm.

The two drive shafts are preferably aligned at right angles to each other. The same applies to the pivot shafts assigned to the respective pairs, wherein preferably four pivot shafts are provided for pivotally mounting the sealing jaw element and the counter jaw element of the first pair towards and away from each other and for pivotally mounting the sealing jaw element and the counter jaw element of the second pair in the same way.

Drawings

Further details and advantages of the invention will become apparent from the following description of embodiments thereof, which is to be read in connection with the accompanying drawings. Wherein:

FIG. 1 shows a side view of an essential part of an embodiment of an apparatus for manufacturing packaging bags;

FIG. 2 shows an enlarged view of the bag making apparatus shown in FIG. 1 with the bag and film being pushed out;

fig. 3 shows a perspective top view of the sealing station according to the embodiment of fig. 1, with the sealing jaws open;

fig. 4 shows a top view of an embodiment of the sealing station in the stage shown in fig. 2, which sealing station is at right angles to the axis of rotation of the transport wheel according to fig. 2;

figure 5 shows a side view of the sealing station in the stage shown in figures 2 and 3;

FIG. 6 shows the sealing station in a top view of the sealing jaws during sealing;

fig. 7 shows the view according to fig. 2 during sealing of the package;

fig. 8 shows the illustration according to fig. 3 in a stage according to fig. 7;

fig. 9 shows the representation according to fig. 4 in a stage according to fig. 5 and 6, an

Fig. 10 shows a top view of a packaging unit consisting of a bag and a film.

Detailed Description

The embodiment shown in fig. 1 has a bag manufacturing apparatus identified by reference numeral 2 and a sealing station identified by reference numeral 100.

The pouch manufacturing apparatus 2 comprises a carousel having a plurality of containers 4 rotating about an axis for containing water-permeable packets formed to form pouches containing infusible material, typically connected to a thread and a label. As regards the individual stations and their configuration, reference may be made to the prior art, for example european patent 2231479B 1 or WO 01/62600 a 1. Reference numerals I to IV in fig. 1 identify various positions in which the container 4 may be located in order to receive and process the various components of the finished or ready-to-finish bag. For clarity of presentation, the elements that function in this process are not shown. In position VI, the bag is completed.

Figures 1 and 2 show elements of a bag handling apparatus, indicated by reference numeral 10, and a packaging material handling apparatus, indicated by reference numeral 20. The packaging material of the shown embodiment is a fragrance-impermeable film. Therefore, in the following description, reference will be made to the thin film processing apparatus 20. The bag handling device 10 comprises two approximately parallel extending arms 12, 13, which are hingedly connected to each other and are coupled to a common drive device 30 via a coupling rod 14. The common drive device 30 has different cam discs 32 which are non-rotatably fixed on a common drive shaft 33 of the drive device 30 and are coupled to pickers 34 in which the outer circumferential surfaces of the cam discs 32 roll in each case, wherein the pickers 34 are each pivotally mounted on a common bearing axis 36 and are provided with a control rod 37 which is hingedly connected to the associated coupling rod 14. The coupling lever 14 acts on the arms 12, 13 via a control lever.

The drive device 30 actuates the various components of the bag handling device 10 and the components of the film handling device 20. Thus, both processing devices 10, 20 are provided with a common drive and are forced to synchronize.

As can be seen from fig. 2, the film 40 shown schematically in fig. 1 together with the bags 42 are pushed out of the bag manufacturing apparatus 2 and to a transport wheel 50, wherein a fold 45 formed by folding the material of the film 40 and formed between two legs 44 of the film 40 extends forwards and the bags 42 extend backwards. The thin film processing apparatus 20 engages the edge of the thin film 40. By moving the clamping blocks 15 together with the clamping springs 16 and together with the front ends of the front and rear bag handling arms 12, 13 radially away from the bag manufacturing apparatus 2, the bags 42 are pushed out from behind by actuating the clamping blocks 15 with the clamping springs 16. At the end of this movement, the bag 42 is placed in the packaging film 40 and clamped between the clamping arms 52 of the transport wheel 50.

The sealing station 100 has sealing jaws which are identified by reference numerals 102 and 108, wherein the sealing jaw 102 shown at the bottom of fig. 3 to 9 is formed by a first sealing jaw element 104 and a second sealing jaw element 106. Similarly, the upper sealing jaw 108 shown thereon is formed by two jaw elements, hereinafter referred to as opposing jaw elements 110 and 112. As shown in particular in fig. 6, each sealing jaw element 104, 106 is L-shaped in plan view and has a long leg 113 and a short leg 114 extending at right angles to the long leg. The long legs 113 each form a longitudinal seal by which the opposing legs 44 are joined at their longitudinal sides. The two short legs 114 together form a sealing surface of each sealing jaw 102, 103 which is adapted to form a transverse seal and to create a transverse seal on the film 40 in order to seal the transverse side of the film material opposite the fold 45. The longitudinal seal and the transverse seal allow the interior of the film package to be hermetically sealed. The fourth side is sealed by a fold 45.

The sealing jaw element 104 and the counter jaw element 110 (in each case the left-hand part of the sealing jaw according to fig. 3 to 9) are driven by a common drive 115 in the form of a servomotor. To this end, a connecting rod is arranged eccentrically on the drive shaft 116 of the driver 115, wherein the connecting rod arranged adjacent to the driver 114 is associated with the counter pawl 110 and is therefore designated hereinafter as counter pawl connecting rod 118, while the other connecting rod arranged on the side of the counter pawl connecting rod 118 opposite to the driver 115 is designated and identified as sealing pawl connecting rod 120.

The sealing jaw connecting rod 120 is freely rotatable and eccentrically mounted on the drive shaft 116. The other end of the sealing jaw connection rod 120 is hingedly attached at a pivot point identified by reference numeral 122 to a sealing jaw pivot arm 124 which carries the sealing jaw element 104 at one end and is pivotally mounted at its other end about a pivot shaft 126, identified hereinafter as the sealing jaw pivot shaft.

In a corresponding manner, the reverse pawl connection rod 118 is pivotally connected to a reverse pawl pivot arm 128 which supports the reverse pawl 110 and is pivotally mounted at its opposite end on a reverse pawl pivot shaft 130. With reference to the orientation of the sealing jaws 102, 108 according to the illustration, in particular in fig. 5 and 9, reference is also made below to the upper sealing jaw 108 and to the lower sealing jaw 102. The lower sealing jaw 102 is constituted by lower sealing jaw elements 104, 106. The upper sealing jaw 108 is formed by upper sealing jaw elements 110, 112.

Two pivot shafts 126, 130 are arranged between the sealing jaws 102, 108 and the drive shaft 116, as can be seen in particular from the side views in fig. 5 and 9. The sealing plane, which is identified by reference sign E in fig. 9, in which the membrane 40 is located when the seal is formed, extends at right angles to the connecting line joining the two pivot axes 126, 130. Approximately half along this line is the pivot point, only the pivot point 122 of the sealing jaw connection rod 120 being visible in the figure.

The elements for sealing the membrane 40, namely the sealing jaw element 106 and the counter jaw element 112 (visible on the right side of fig. 4) are also mounted in the supporting and movable configuration in the manner described above. As can be seen in particular from fig. 6, two drives 115, 140 are provided, whose drive shafts 116, 142 extend at right angles to one another. The drivers 115, 140 are arranged to overlap each other, thereby resulting in a relatively compact structure. The essential components of the sealing station 100 are essentially mirror inverted about an axis a which intersects the intersection of the two drive shafts 116, 152, passes through the spacing between the short legs 114, and extends at right angles to the axis of rotation of the transport wheel 50.

As can be derived from the above description, a toggle lever is provided for the first and second pair of sealing jaw elements 104, 110; 106. 112, wherein the toggle lever of the sealing jaw member 104 comprises a sealing jaw connection rod 120 and the toggle lever of the counter jaw member 110 comprises a counter jaw connection rod 118. In this case, two connecting rods 118, 120 are rotatably mounted about and supported by a common drive shaft 116. They are eccentrically mounted to the drive shaft 116. However, the eccentrics are angularly offset from each other.

Fig. 3 to 5 show stages in the operation of the sealing station 100 before the upper film 40 of fig. 3 to 5 is inserted between the sealing jaws 102, 108. The sealing jaws 102, 108 are open. In particular, in the view according to fig. 4, the sealing jaw elements are a sealing jaw element 104 pivoting downwards and to the left, a sealing jaw element 106 pivoting downwards and to the right, a counter jaw element 110 pivoting upwards and to the left, and a counter jaw element 112 pivoting upwards and to the right. This pivoting movement is effected by a corresponding toggle lever. As shown in fig. 5, the larger radius of the respective eccentric of the respective connecting rod 118, 120 is located on the opposite side of the drive shaft 116 from the sealing jaws 102, 108. The long leg 113 extends parallel to the axis 1, the short leg 114 is at right angles thereto, and the pivot axes 126, 130 are each inclined at 45 ° to the axis 1. Thus, the pivot arms 124, 128 pivot almost maximally in the direction of the drive shaft 116. The space between the sealing jaws 102, 108 allows the folded film 40 to be inserted without colliding with the sealing jaws 102, 108. This insertion is achieved by rotation of the carrying wheel 50, which stops when the folded film 40 has reached the sealing plane E. The folded film 40 is then inserted into the sealing jaws 102, 108. When the membrane 40 approaches the sealing plane E, the sealing jaws 102, 108 have been closed by a clockwise rotation of the drive shaft 116 according to fig. 5 and 9. In these figures, reference is made to the drive shaft 116. The other drive shaft 142 is driven in the opposite direction.

The sealing position is shown in fig. 6 to 9. The sealing jaws 102, 108 contact each other. Specifically, the sealing jaw element 104 abuts the counter jaw element 110, and the sealing jaw element 106 abuts the counter jaw element 112. Thus, each pair of mutually associated jaw elements 104, 110; 106. 112 are closed by closure of the membrane 40. Furthermore, the short legs 114 of the respective jaw elements 104, 106, 110, 112 are in contact with each other.

As shown particularly in fig. 9, the sealing jaw connection rod 120 assigned to the lower sealing jaw 102 is in its extended position. Thus, the line intersecting the pivot point 122 and the drive shaft 116 passes through the eccentric, which is connected to the drive shaft 116 at its largest radius and in a non-rotatable manner. Thus, the sealing jaw connection rod 120 is supported only in the radial direction by the mounting of the drive shaft 116.

On the other hand, the counter pawl connection rod 118 is located in the direction of rotation of the drive shaft 116 until it reaches the sealing position, even before its extended position, i.e. approximately 30 ° before its extended position. In other words, the respective sealing jaw element 104, 106 has reached its maximum possible position (see the illustration according to fig. 9), while a clockwise rotation of the drive shaft 116 results in a further substantial approach of the counter jaw element 110. In the embodiment shown, the torque exerted by the servomotor as drive 115 determines the contact pressure between the two jaw elements 104, 110 or 106, 112. The torque tapped (tapped) at the driver 115 is used to set the contact pressure. The torque corresponds exactly to the contact pressure. In particular, there are no springs or other compression means between the driver 115 and the sealing surfaces of the respective jaw elements 104, 106, 110, 112 disposed against each other. Since the sealing jaw elements are in the extended position of the respective toggle lever, the load is transferred radially to the drive shaft via the associated sealing jaw connection rod 120 alone, the torque tapped via the motor power is determined only by the contact pressure of the counter jaw element 110, whereby the control of the contact pressure via the servo motor is simplified and becomes more precise.

Fig. 6 also shows the position of the components of the sealing station 100 relative to the wall 144 of the machine, which normally exposes on its outside (in fig. 6 on the left side) the various stations, the functional components of which interact with the bag or bag material, the label or said line for connecting the bag material to the line. On the outside of the wall 144, after opening the door, which is usually at least partially transparent and covers the component, the operator of the device can also access the component for setting up the machine or for troubleshooting. Typically, the machine's gearbox or motor is located behind the wall 144. It is clear that the drive shaft 142 and the connecting rods 118, 129 connected thereto pass through this partition wall 144.

Figure 10 shows a package as described above, consisting of a package identified by reference numeral 150, which is a circumferential package containing the string and label carrying pouch 42 shown in dotted line form and closed in a fragrance-tight manner. The package 150 has a first broad side closed by a fold 45. From which the longitudinal seal L extends at right angles. At the ends of these longitudinal seals L there are transverse seals Q which extend parallel to the folds 45. The longitudinal and transverse seals L, Q meet or intersect.

List of reference marks

2 bag manufacturing equipment

4 container

10 bag treatment apparatus

12 preceding bag handles arm

13 post-bag handling arm

14 coupling rod

15 clamping block

16 clamping spring

20 thin film processing apparatus

30 drive device

32 cam disc

33 drive shaft

34 pick-up device

36 bearing axis

37 control rod

40 film

42 bag

44 support leg

45 folding part

50 transport wheel

52 clamping arm

100 sealing station

102 lower sealing jaw

104 sealing jaw element

106 sealing jaw element

108 upper sealing jaw

110 reverse pawl element

112 reversing pawl element

113 Long leg

114 short leg

115 driver

116 drive shaft

118 reverse claw connecting rod

120 sealed claw connecting rod

122 pivot point

124 sealed claw pivot arm

126 sealed jaw pivot shaft

128 reverse claw pivot arm

130 reverse claw pivot shaft

140 driver

142 drive shaft

144 wall

150 packaging

Axis of symmetry A

E sealing plane

L longitudinal seal

Q transverse seal

Location of I-IV vessel 4