EP0940360B1 - Method and device for splicing webs - Google Patents

Abstract

The preceding web (29) on the one hand and the new web on the other hand are clamped and from the preceding web and from the new web a commencement piece and an end piece are separated. The thus formed ends are positioned next to each other in a common plane for connection and application of the tape. To form the commencement piece of the new web, a closed outer casing of a new bobbin and a closed outer layer of a new web are separated in an axial direction so that at least a free web leg of the new web hangs freely by its own weight, the web leg is secured and a commencement piece of the new bobbin (30) is drawn away.

Description

The invention relates to a method for connecting webs of packaging material or the like, namely a new start with a new course a drain end of a drain track, by gluing or by a tape, wherein the runway and the new run are each recorded separately by clamping members and be severed by a knife to form each other in the same Level adjacent web ends that are connected to each other. Farther The invention relates to a device for performing the method.

In a known method and a device according to the above Features (DE 42 19 910 A1) are the running web and a Starting area of the new path essentially in the same plane by a Connection device conveyed through or positioned in their area. The Connecting device has plate-shaped support members for the webs and especially web ends. These organs are only in the horizontal plane can be moved back and forth. This is an automation of the connection process difficult.

a) der Neuanfang der Neubahn wird durch einen Bahnabholer an der Neubobine erfasst, von dieser abgezogen und in einer Ebene versetzt zur Ebene der Ablaufbahn, bereitgehalten,

b) die Klemmorgane, nämlich Klemmstücke zum klemmenden Erfassen des Neuanfangs der Neubahn sind in einer Ebene versetzt zur Ablaufbahn angeordnet, derart, dass der Neuanfang der Neubahn durch den Bahnabholer zwischen den auseinander bewegten Klemmstücken hindurchbewegbar ist,

c) die Ablaufbahn wird zwischen den auf Abstand voneinander angeordneten Klemmstücken hindurchgefördert,

d) die Ablaufbahn und die Neubahn werden durch die zugeordneten Klemmstücke klemmend erfasst,

e) die Ablaufbahn und Neubahn werden durchtrennt und die gebildeten, einander zugekehrten Bahnenden werden miteinander verbunden.

Furthermore, the laid-open patent application US-A-3769124 discloses a method for connecting material webs, namely a new start of a new web with a drain end of a runway, the runway and the new web each being captured separately by clamping members and severed by a separating device to form mutually adjacent web ends in the same plane, which are connected to one another, with the further features:

a) the new start of the new track is recorded by a train pickup at the new booth, deducted from it and offset on one level to the level of the runway, ready,

b) the clamping members, namely clamping pieces for the clamping detection of the new start of the new track, are arranged offset in one plane to the runway in such a way that the new start of the new track can be moved through the web pickup between the clamping pieces moved apart,

c) the run-off path is conveyed between the clamping pieces arranged at a distance from one another,

d) the running track and the new track are clamped by the assigned clamping pieces,

e) the run-off track and the new track are cut and the web ends which are formed and face one another are connected to one another.

The invention has for its object to propose a method that powerful, automated handling of the webs when connecting them guaranteed.

a) der Neuanfang der Neubahn wird durch einen Bahnabholer an der Neubobine erfasst, von dieser abgezogen und in einer Ebene versetzt zur Ebene der Ablaufbahn bereitgehalten,

b) die Klemmorgane, nämlich Klemmstücke zum klemmenden Erfassen des Neuanfangs der Neubahn sind in einer Ebene versetzt zur Ablaufbahn angeordnet, derart, dass der Neuanfang der Neubahn durch den Bahnabholer zwischen den auseinander bewegten Klemmstücken hindurchbewegbar ist,

c) die Ablaufbahn wird zwischen den auf Abstand voneinander angeordneten und versetzt zum Neuanfang der Neubahn positionierten Klemmstücken hindurchgefördert,

d) die Ablaufbahn und die Neubahn werden durch die zugeordneten Klemmstücke klemmend erfasst,

e) die Klemmstücke werden sodann mit der klemmend erfassten Ablaufbahn und der Neubahn in eine gemeinsame Ebene bewegt, wobei die Ablaufbahn und Neubahn durchtrennt und die gebildeten, einander zugekehrten Bahnenden miteinander verbunden werden.

To solve this problem, the method described at the beginning has the following features:

a) the new start of the new track is recorded by a train pick-up at the new booth, deducted from it and held ready on one level to the level of the runway,

b) the clamping members, namely clamping pieces for the clamping detection of the new start of the new track, are arranged offset in one plane to the runway in such a way that the new start of the new track can be moved through the web pickup between the clamping pieces moved apart,

c) the run-off path is conveyed between the clamping pieces which are arranged at a distance from one another and are offset at the new start of the new path,

d) the running track and the new track are clamped by the assigned clamping pieces,

e) the clamping pieces are then moved with the clamping traced runway and the new path into a common plane, the runway and new path being cut and the mutually facing web ends formed being connected to one another.

In the method according to the invention, the Preparing the new railway and a new beginning for the subsequent connection held ready with the runway.

The device for performing the method provides that the webs each Two clamping pieces are assigned, the new train being picked up by a train can be moved between the associated clamping pieces.

The operation of the device is set up so that the end piece separated from the runway as well as that from the The newly separated initial piece can be disposed of automatically. Furthermore, it is provided that a bobbin core, according to consumption a bobbin becomes free, is also disposed of.

Further details of the invention relate to methods and apparatus for handling the new bobbin or the new train and the Design and mode of operation of the connecting unit.

Fig. 1

eine Verpackungsanlage, nämlich Verpackungsmaschine und Materialeinheit, im schematischen Grundriß,

Fig. 2

die Materialeinheit der Fig. 1 in schematischer Seitenansicht, bei vergrößertem Maßstab,

Fig. 3 bis Fig. 14

eine Abfolge von Arbeitsschritten bei der Verbindung einer Neubahn mit einer Ablaufbahn, bei schematischer Darstellung von Organen und Aggregaten in Seitenansicht,

Fig. 15 bis Fig. 17

einen Bahnhalter zum Abziehen einer Materialbahn in verschiedenen Arbeitsphasen, in Seitenansicht bei vergrößertem Maßstab,

Fig. 18

eine Darstellung des Bahnhalters entsprechend Fig. 15 bis Fig. 17 in Zusammenarbeit mit einem Verbindungsaggregat für Material bahnen,

Fig. 19 bis Fig. 23

das Verbindungsaggregat für die Materialbahnen in verschiedenen Arbeitsphasen, in Seitenansicht,

Fig. 24

einen Bereich des Verbindungsaggregats in einer Ansicht gemäß Pfeil XXIV in Fig. 19,

Fig. 25

eine Ansicht des Verbindungsaggregats gemäß Pfeil XXV in Fig. 19.

Details of the method and the device are explained below with reference to the drawings. It shows:

Fig. 1

a packaging system, namely packaging machine and material unit, in a schematic plan view,

Fig. 2

1 in a schematic side view, on an enlarged scale,

3 to 14

a sequence of work steps in the connection of a new track with a runway, with a schematic representation of organs and units in side view,

15 to 17

a web holder for pulling off a material web in different working phases, in a side view on an enlarged scale,

Fig. 18

15 shows a representation of the web holder according to FIGS. 15 to 17 in cooperation with a connecting unit for material,

19 to 23

the connection unit for the material webs in different working phases, in side view,

Fig. 24

FIG. 19 shows a region of the connecting unit in a view according to arrow XXIV in FIG. 19,

Fig. 25

a view of the connecting assembly according to arrow XXV in Fig. 19th

The details shown in the drawings deal with the handling of wrapped packaging material, so Bobbin 10. These can be made of paper, tinfoil, foil or a other web-shaped material. The web of material is wound on a bobbin core 11 made of cardboard can, but also made of plastic or metal.

1 shows a packaging machine as an important application example 12 in plan view. It is about a soft packer, i.e. around a packaging machine 12 for manufacturing of cigarette packs 13 of the soft cup type. The packaging machine A material unit 14 is assigned to 12. This is arranged on the back of the packaging machine 12, namely opposite to a folding turret 15 and others Aggregates.

The material unit 14 corresponds to those to be processed Materials two bobbin magazines 16, 17 on one stock on bobbins 10 positioned side by side in the axial direction. The bobbin magazine 16 contains, for example, bobbins 10 Tinfoil and the Bobinen-Magazin 17 Bobbin 10 made of paper for the production of a cup of the cigarette pack 13. Furthermore are banderole bobbins 21 in the area of a separate bobbin stock 18 housed from a relatively narrow web of material for the production of (tax) banderoles, which are known in the area of the front sides of the cigarette packs 13 are attached.

The bobbins 10 are in the area of the bobbin magazine 16, 17 axial alignment spaced apart. A the bobbin 10 in front is the bobbin magazine 16, 17 removed and handed over directly to a carrying device, namely on a rotatable pin, which in one through the bobbin core 11 formed center opening of the bobbin 10 occurs. By turning the pin, the material web is removed from the bobbin 10 deducted.

The material unit 14 is arranged so that the larger bobbin magazines 16, 17 on opposite sides of a central one Operating unit 22 are arranged. This consists of a housing for receiving drive elements and controls. Is on opposite longitudinal sides of the operating unit 22 one carrying device for bobbins 10 and tenons for Receiving bobbins 10 arranged, namely a bobbin arm 23, 24 as a two-armed lever with a central pivot bearing 25. An the ends of the bobbin arm 23, 24 is a support pin for a bobbin 10 arranged, namely a working pin 26 and a Storage spigot 27. Spigot 26, 27 are freely protruding from the bobbin arm 23, 24 stored. The facing the packaging machine 12 The spigot is the working spigot 26. This carries a drain bobbin 28, of which the material web, namely a run-off web 29, is subtracted. The one facing the Bobinen-Magazin 16, 17 Storage pin 27 is used to hold a new, complete Replacement or new bobbin 30. The supply spigot 27 is by rotating the bobbin arm 23, 24 into one on the bobbin core 11 of the bobbin magazine 16, 17 aligned position movable, so that subsequent bobbins 19, 20 immediately on the supply spigot 27 can be pushed on. In doing so, as indicated schematically, the relevant bobbin 10 or New bobbins 30 raised for transfer to the supply spigot 27 become.

The packaging machine 12 will be three in the present case Material webs supplied, namely a tinfoil 31, a Paper web 32 and a banderole web 33. The aforementioned webs 31, 32, 33 are deflected several times so that they are in one for the processing favorable position of the packaging machine 12 are fed.

The banderole bobbins 21 are on the common material unit 14 arranged, in the region of the bobbin magazine 16 transverse to these. Also for the banderole bobbins 21 are Support pin provided, namely also working pin 26 and Storage cones 27.

Before the drain bobbin 28 is used up, the new bobbin 30 is run through Pivotal movement of the bobbin arm 23, 24 brought into position and a new lane 34 subtracted from the new bobbin 30 with the runway 29 mechanically connected.

The new track 34 is connected to the runway 29 in FIG several steps. First, the new bobbin 30 is prepared, by creating a free, comprehensible beginning of the Neubahn 34 becomes. Then a section of the new course, namely an initial piece 35, subtracted from the Neubobine 30 and with the runway 29 connected. By separating it becomes the starting piece 35 from the new track 34 and an end piece 36 from the runway 29 separated. Start piece 35, end piece 36 and on the bobbin core 11 remaining in the working pin 26 is disposed of.

First, the starting piece 35 of the new bobbin 30 is exposed. This is provided with an outer closed envelope, which is usually closed by an external adhesive Location of the new course 34 is formed. This situation must be severed. For this purpose, the new bobbin 30 corresponding pivoting movement of the bobbin arm 23, 24 in the counterclockwise direction moved to a lower processing position, in which the bobbin arm 23, 24 assumes an oblique position (Fig. 3 ff.).

In this position, a separating unit 37 takes effect, namely is moved up from a lower waiting position (Fig. 2) until it touches the circumference of new bobbin 30 (Fig. 3). Now the outer layer of the material web is cut in the transverse direction. This results in free web legs 38, 39 (Fig. 4). These hang in tangential relative positions on opposite ones Sides of new bobbin 30 in a vertical plane. The Separating unit 37 returns to after performing the separating cut the lower starting position back. The separation unit 37 is preferably formed in accordance with DE 197 10 657.9 and movable in the axial direction of the new bobbin 30. A web leg 39 is part of the initial piece 35 of the new track 34. This free area the new track 34 can be grasped by a longer starting piece Subtract 35 from new 30.

The runway 29 and the new runway 34 are connected in the area a connection unit 40 this is in an inclined position arranged in the area of the material unit 14, namely for each bobbin arm 23, 24. Run due to the inclination the runway 29 and the new run 34 in an obliquely downward direction Levels through the connecting unit 40.

The device is designed so that the runway 29 during of operation runs through the connecting unit 40. For this purpose, on the entry side and on the Exit side of the connecting unit 40 each deflecting rollers 41, 42 arranged. The drain bobbin 28 is during this operating phase above the connecting unit 40, laterally offset to this. The connection unit 40 emerging runway 29 is by a above the connecting unit 40 arranged web storage 43 passed through. This is responsible for the current standstill phases of the Compensate for runway 29 while connecting the new runway 34. The web store 43 is also in the area of the Material unit 14.

For connection to the runway 29, the starting piece 35 the new web is pulled through the connecting unit 40. For this purpose is a specially trained body provided for grasping and pulling off the initial piece 35, namely a web pick-up 44. This is in an inclined, plane of movement running parallel to the plane of the runway 29 45 reciprocable, namely through the connecting unit 40 through to Neubobine 30 and back into one lower starting position outside the connecting unit 40. The web pickup 44 is with a special holding member, namely a gripper 67 provided for gripping the initial piece 35 the new train 34. This is in an obliquely downward direction Plane pulled through the connecting unit 40 and temporarily held by the web pickup 44 (Fig. 6).

The structure and mode of operation of the connecting unit 40 are schematic shown in Fig. 3 to Fig. 14. To capture the beginning 35 the new train 34 is the train pickup 44 along the plane of movement 45 moved up to the new bobbin 30 until the holding member - gripper 67 - the freely hanging web leg 39 can detect (Fig. 5). Then the train picker returns 44 back to the lower starting position, the starting piece 35 withdrawn from the new bobbin 30 and through the connection unit 40 is passed. The relative position of the initial piece 35 is in the region of the connecting unit 40 determined by a guide roller 47 on a swivel arm 48 is arranged.

In the area of the connecting unit 40 are holding members for the Runway 29 on the one hand and the new track 34 on the other hand. These are clamping pieces that can be moved against each other 49, 50 for the runway 29 on the one hand and around clamping pieces 51, 52 for Neubahn 34 on the other hand. Runway 29 and Neubahn 34 are guided so that they between the assigned Clamps 49, 50 and 51, 52 run through. The clamp pieces 49, 50 on the one hand and 51, 52 on the other hand are in offset Layers arranged to each other, according to the movement levels of runway 29 and new runway 34.

Before the start of the rail connection, this is done by the rail pick-up 44 hand over initial piece 35 held to another holding member, namely to a (stationary) conveyor roller 53 with counter roller 54. The initial piece held by the web pickup 44 runs between these 35. The counter roller 54 on a lever 55 is under Driving the initial piece 35 pressed against the conveyor roller 53. The initial piece 53 is then picked up by the web 44 released and between conveyor roller 53 and counter roller 54 fixed (Fig. 7). Conveyor roller 53 and counter roller 54 pull one longer area of the starting piece 35 from the new bobbin 30, so that a free piece of web sags down (Fig. 7 and Fig. 8).

Now the clamping pieces 49, 50 and 51 and 52 against each other moves while grasping and holding the runway 29 on the one hand and the new track 34 on the other hand (Fig. 8). While this phase is the conveying movement of the runway 29 in the area the connection unit 40 interrupted.

When capturing the new track 34 or the initial piece 35 through the clamping pieces 51, 52 or immediately afterwards becomes the starting piece 35 separated from the new railway 34 by a Clamping pieces 51, 52 assigned or attached to these Cutting knife 56. The released starting piece 35 is from the Connection unit 40 conveyed out, namely by the conveyor roller 53 with counter roller 54. The starting piece 35 falls in a container arranged below the connecting unit 40 57th

The runway 59 is offset at the same time or in time also severed in such a way that that of the packaging machine 12 facing runway 29 through the clamping pieces 49, 50 held, the separated end piece 36, however becomes free (Fig. 9). The runway 29 is by the (common) Cutting knife 56 severed, which together with the Clamping pieces 51, 52 moved into the area of the runway 29 (Fig. 8, Fig. 9).

The clamping pieces 49, 50; 51, 52 are arranged so that after the severing of both webs lie side by side, so that a End 58 of the runway 29 and a fresh start 59 of the new run 34 are positioned immediately adjacent to one another, if necessary with an overlap or a small distance on a common level.

In this position, end of run 58 and new start 59 can be together be connected, in the present case by a Adhesive strip or by a tape 60. This is by a Tape holder 61 supplied and on the free side, namely between adjacent clamps 49 and 51, at the drain end 58 and Fresh start 59 pressed. The connection of the lanes, namely runway 29 and new track 34 is thus produced (Fig. 10).

The new runway 29 thus created is moved apart the clamping pieces 49..52 released (Fig. 11). The Transport of the runway 29 is resumed. In the meantime, the web memory 43 has been reduced and can now rebuilt by correspondingly increased delivery capacity become (Fig. 12). The clamps 49..52 sweep along the way back to the starting position according to FIG. 3 ff.

By further pivoting movement of the bobbin arm 23, 24 in the counterclockwise direction is the (new) drain bobbin 28 in one of Connection unit 40 removed, upper position moved (Fig. 12). The previous drain bobbin 28 with a remnant of the drain track 29, namely the end piece 36 and the bobbin core 11, is moved to the lower position when the bobbin arm is tilted 23, 24. In this position the (previous) Working pin 26 in the work area of a disposal organ. This is the train pick-up 44. This will by corresponding movement along the movement plane 45 the rest of the drain bobbin 28 moved up. The one there End piece 36 is detected and by return movement of the Web pickup 44 in the starting position (Fig. 13) from the bobbin core Subtracted 11. The end piece 36 is also already in the handed over to the deduction body, namely on conveyor roller 53 and counter roller 54. These transport the End piece 36 in the container 57, in which there is already the starting piece 35 is located.

So that the end piece 36 of the (previous) runway 29 after Separation does not interfere with the further processes, it is provided that the end piece 36 by counter-driving the working pin 26 is wound on this (Fig. 9, Fig. 10).

After removal of the end piece 36, a puller for the (empty) bobbin core 11 active. This step too is carried out here by the train pickup 44. This is according to Fig. 14 again moved up to the previous working pin 26. The holding member 46 grips the bobbin core 11 and moves this in an axial direction from the working pin 26. The free one Bobbin core 11 passes under its own weight into a separate one Collection container 62 (Fig. 14).

By counter-rotating swivel movements of the bobbin arm 23, 24 - clockwise - the flow reel 28 returns to the actual one Working position according to FIG. 2 back. The free supply spigot 27 is in the area of the bobbin magazine 16, 17 for the Takeover of a new bobbin (Neubobine 30) ready.

For the correct guidance of the material web during the swiveling movements and the different positions of the bobbin arm 23, 24 is a guide element for the material web on the bobbin arm 23, 24 arranged, namely each bobbin or pin on Bobbin arm 23, 24 associated support bracket 63, 64. The two Support brackets 63, 64 are on opposite sides of the bobbin arm 23, 24 arranged and cause the respective material web is guided at a distance from the other pin.

An important organ with a variety of uses is the Web pick-up 44. This is in detail in FIGS. 15 to 18 shown.

The web pick-up 44 can be moved with a stationary linear unit 65 connected. This extends in the plane of movement 45, is accordingly directed obliquely. The Web pick-up 44 is positioned below the linear unit 65 and can be moved via a connecting element, namely a slide 66 connected to the stationary linear unit 65.

An organ for grasping and holding the material web, namely the Start piece 35 or end piece 36 consists of a gripper 67. This is connected to the carriage 66 at one Bracket 68 attached. The gripper 67 is present Trap made of clamping elements for grasping the material web, namely of two jaws 69, 70 movable relative to one another the embodiment shown, the jaw 69 is fixed arranged, namely on a support arm 19. The other Clamp 70 is attached to a movable support, namely on a swivel arm 71. By actuation, namely moving upwards of the swivel arm 71 is the (lower) jaw 70 against the fixed jaw 69 moves, by one Actuating cylinder 72. Thereby, between the jaws 69, 70 a previously formed fold or loop 73 of the material web pinched and so detected (Fig. 16). The gripper 67 can then along the linear unit 65 from that of the respective bobbin or the position facing the respective pin (FIG. 16) be moved back to the starting position (Fig. 17) under Taking the material web (start piece 35, end piece 36).

To grasp the material web, the gripper 67 has organs to form the loop 73 and to insert it into the Position between the jaws 69, 70 provided. It deals are two (or more) spaced apart Suction cups 74, 75 capture the material web in one Position with (greater) distance from each other (Fig. 15). After that the two suction cups 74, 75 are moved towards each other, in the present case by moving the lower one upwards Sucker 75 which is attached to the swivel arm 71. Through this Relative movement occurs between the two suction cups 74, 75 the loop 73. This forms a lateral deflection of the material web, the loop 73 automatically between the two Jaws 69, 70 are moved and gripped by them (Fig. 16). The fixed, upper suction cup 74 is at the end of the support arm 19 attached, in extension of the same.

The gripper 67 is mounted on the holder 68 such that it can be moved transversely, by a guide 76. This transverse movement is required if the gripper 67 - by appropriate use the suction 74, 75 - the empty bobbin core 11 by axial movement subtracts from the respective working pin 26. At least one of the suction cups 74, 75 grips the bobbin core 11. The support arm 19 is connected to the link guide 76.

When the web pick-up 44 moves from the pick-up position 15 into the other end position according to FIG. 17 respective path in the manner described between those at a distance rollers positioned from one another, namely conveyor roller 53 and counter roll 54, moved through (Fig. 6). The (lower) conveyor roller 53 is stationary on a support wall 77. The movable Counter roll 54 is attached to an operating lever 78. This is pivotable by a cylinder 79 Senses movable, so that the counter roller in a lower position 54 abuts the conveyor roller 53 while pressing the material web (Fig. 17). The material web is around the conveyor roller 53 steered down. The correct guidance of the material web is guaranteed by a guide, namely by a baffle 80, which is attached to the support wall 77 in an inclined position between conveyor roller 53 and cylinder 79.

In addition, the conveyor roller 53 is on the opposite side assigned a guide plate 81 to the material web. This is positioned immediately adjacent to the circumference of the conveyor roller 53 and prevents that from being guided around the conveying roller 53 Material web is wound on this.

Special features of the design and mode of operation of the connection unit 40 are shown in detail in FIGS. 19 to 25.

The connecting unit designed as a closed unit 40 has an overall almost cuboid shape. Various Organs are directly or indirectly upright Support frame 82 stored, which consists of a box-like arrangement upright support walls 83, 84 and 85 transverse walls.

Important elements of the connecting unit 40 are the clamping pieces 49..52. That of the new track 34 or its initial piece 35 assigned clamping pieces 51, 52 are independent of one another can be moved up and down. At the start of the connection process the (upper) clamping piece 51 in the lower end position under contact with a fixed stop 86. The clamping piece 51 is held in this lower position by elastic force, in the present case by a tension spring 87, which with a lower extension 88 on the transverse wall 85 and with an upper one Approach 89 is connected to a carriage 90. On this in turn the upper clamp 51 is attached. The sledge is on an upright, fixed guide 91 in the vertical direction traversable.

The lower clamping piece 52 is connected to a carriage 92, which is laterally offset from the clamping piece 52 and upright Guide rods 93 is movable. The carriage 92 and so that the clamping piece 52 is against downward, elastic Pressure can be moved upwards. For this purpose, the Guide rods 93 arranged compression springs 94.

The carriage 92 can be moved up and down by a crank mechanism 95. Through this the carriage 92 with the clamping piece 52 moves upwards, with the new track 34 or the starting piece 35 in an elevated position by contact with the clamping piece 51 is clamped (Fig. 21).

The separating knife 56 is then actuated. This is off Clamp 52 and carriage 92 existing unit relatively movable arranged. For this purpose, a support body 96 for the upward cutting knife 56 on upright slide rods 97 can be moved upwards against the pressure of a spring 98, when a cut is to be made. The cutting knife 56 is moved directly next to the clamping piece 52 the side away from the Neubobine 30.

For actuating the separating knife 56 by moving the supporting body 96 serves a pressure lever 99 which is pivotable on the Pressure piece 52 and slide 92 existing unit attached is. One end 100 of the two-armed pressure lever 99 runs against a fixed cam 101 and becomes with continued upward movement pivoted counterclockwise, such that a pressure roller 102 located opposite end 100 the support body 96 with the cutting knife 56 moves up under Execution of the separating cut (Fig. 21).

The clamping pieces 49, 50 for the runway 29 are within the Connection unit 40 positioned higher than the clamping pieces 51, 52. The upper clamping piece 49 can be moved up and down an upright guide 103. The clamping piece 49 is by a lateral tension spring 104 moved into a lower end position or held in this by contact with a fixed stop 105.

The associated lower clamping piece 50 is with a guide body 106 can also be moved up and down on a guide 103. The guide body 106 is with the upper ends of the guide rods 93 connected. When the carriage 92 moves upwards becomes the guide body 106 and thus the lower clamping piece 50 raised from the position according to FIG. 19 into the clamping position according to FIG. 20. The required clamping pressure when the pressure force increases, the compression springs 94 generated when the carriage 92 is moved upward, first in the position shown in FIG. 21 and then in 22 during this movement phase Separation cut carried out in the region of the runway 29, wherein by the design of the cam 101, the separating knife 56 continues remains in the cutting position extended upwards (Fig. 22).

After the cut in the area of the runway 29 (FIG. 22) are the pairs of clamping pieces 49, 50 on the one hand and 51, 52 on the other hand at the same level. The end 100 of Pressure lever 99 has left cam 101 (FIG. 23). The Cutting knife 56 is moved out of the cutting position. Now can be on the opposite, upper side of the adhesive tape or the tape 60 through the tape holder 61 from above on the facing web ends, namely on the end of the run 58 and the new beginning 59.

The web sections released after the separating cuts, namely the start piece 35 on the one hand and the end piece 36 on the other hand are in the position according to FIG. 21 or FIG. 22 released in the manner described.

The tape holder 61 is designed in a special way. It deals a pivotable tape lever 107, on the free end of a holding head 108 with suction bores (not shown) is arranged to hold the tape 60 by means of suction air. The angular tape lever 107 is in the starting position (Fig. 20) with an end leg 109 directed upwards. On top the holding head 108, the tape 60 can be placed on it. The tape lever is moved by 180 ° by pivoting movement, so that the end leg 109 with the holding head 108 directed downwards is, with an adhesive on the free, downward facing Side of the tape 60 is located. The holding head 108 is with the tape 60 to the mutually facing ends of the material web pressed, namely to the drain end 58 on the one hand and the New beginning 59 on the other hand, so that these are connected become. The suction air for holding the tape is switched off.

Specifically, when tape 60 is attached to runway 29 and Neubahn 34 proceeded so that the holding head 108 with the Tape 60 positioned a short distance above the material webs is. With a small stroke, they are in Clamping pieces 49, 50; 51, 52 raised mean which brings the ends of the webs of material to the holding head 108 or pressed against the tape 60. The crank mechanism is 95 designed so that in the final phase of a full revolution this Stroke is executed (Fig. 10).

The tape lever 107 is pivotally connected to a pivot bearing 110. The rotational movement of the tape lever 107 is in the present Case carried out via an endless output, namely via one Timing belt 111, which can be driven back and forth while doing so the described rotary movement in the area of the rotary bearing 110 performs. Part of the pivot bearing 110 is also a deflection wheel for the timing belt 111.

To perform the back and forth movement is immediate the timing belt 111 moves, by a with this connected coupling piece 112, which with a linear drive 113 connected is. The coupling piece 112 is through the linear drive moved back and forth, causing corresponding pivoting movements of the tape lever 107 are performed.

Another special feature is the movement of the clamping pieces 49..52, in particular the upper clamping piece 51. This must be done after connecting the runway 29 to the new train 34 from a position above the (new) runway 29 (Fig. 23) moved back to a position below it (Fig. 20) become.

For this purpose, the upper clamping piece 51 is a cantilevered one-armed lever formed (Fig. 25). A bent end area 114 is in the region of a fork-shaped pivot bearing 115 firmly connected to an upright rotating shaft 116. Go berserk the rotating shaft 116 becomes the effective, cantilevered part of the Clamping piece 51 from the movement range of the runway 29 moved out into a position next to this runway 29. Well the clamping piece 57 can be moved down next to the runway 29 19 and 20. FIG. 25 shows the position of the clamping piece 51 below the runway 29th

An upper end of the rotating shaft 116 is in a fixed Holding bearing 117 out. One in this area on the rotating shaft 116 operating lever 118 is with a suitable actuator e.g. connected to a cylinder. By swiveling movement of the operating lever 118, the rotary shaft 116 in the one or the other direction rotated with appropriate movement of the clamping piece 51. The rotary shaft 116 is sliding in the holding bearing 117 out, so it can be moved up and down with the clamping piece 51 become. 22 and 23 show the upper end position the rotary shaft 116. The rotary bearing 115 is with a sliding body 119 up and down on the common upright guide 91.

In the case of material webs with a print or other specified Markings, especially with paper webs 32 with the usual If a (cigarette) pack is printed, the connection is made of runway 29 and new runway 34 tailored, so in coordination with the printing that matches each cut. For this purpose, the procedure is as follows 29 and the new track 34 are stopped in the correct position according to the printing. The clamping pieces 49, 50 on the one hand and 51, 52 on the other hand are therefore due to a path-dependent Control activated to runway 28 and the new runway 34 to stop in a matching relative position. To For this purpose, the runway 28 and the new track 34 are used monitored by print marks (not shown). Such print marks are at intervals according to the dimensions of a print or a cut in a known manner on the material webs appropriate. A print mark reader 120 for the runway 29 and a print mark reader 121 for the new web 34 detects the print marks and control the associated clamping pieces 49, 50 and 51, 52. The print mark readers 120, 121 are in the present case arranged outside the connecting unit 40, namely the Print mark reader 120 for the runway 29 on the entry side to the connecting unit 40 and the print mark reader 121 on the exit side.

LIST OF REFERENCE NUMBERS

10

reel

11

reel core

12

packaging machine

13

cigarette pack

14

material unit

15

folding turret

16

Bobbins magazine

17

Bobbins magazine

18

Reel stock

19

Beam

21

Banderole reel

22

operating unit

23

Bobinenarm

24

Bobinenarm

25

pivot bearing

26

working journals

27

stock pins

28

Ablaufbobine

29

slipway

30

new reel

31

tinfoil

32

paper web

33

band track

34

new web

35

initial part

36

tail

37

separating unit

38

path branch

39

path branch

40

Physical connection

41

deflecting

42

deflecting

43

web store

44

web pickup

45

movement plane

47

guide roller

48

swivel arm

49

clamp

50

clamp

51

clamp

52

clamp

53

conveyor roller

54

backing roll

55

lever

56

separating knife

57

container

58

expiring

59

new beginning

60

Tape

61

Tape holder

62

Clippings

63

support bracket

64

support bracket

65

linear unit

66

carriage

67

grab

68

bracket

69

jaw

70

jaw

71

swivel arm

72

actuating cylinder

73

loop

74

Mammal

75

Mammal

76

link guide

77

supporting wall

78

actuating lever

79

cylinder

80

baffle

81

guide plate

82

supporting frame

83

supporting wall

84

supporting wall

85

partition

86

attack

87

mainspring

88

approach

89

approach

90

carriage

91

guide

92

carriage

93

guide rod

94

compression spring

95

crankshaft

96

supporting body

97

sliding bar

98

feather

99

pressure lever

100

The End

101

cam

102

pressure roller

103

guide

104

mainspring

105

attack

106

guide body

107

Tape lever

108

holding head

109

end leg

110

pivot bearing

111

toothed belt

112

coupling piece

113

linear drive

114

end

115

pivot bearing

116

rotary shaft

117

holding camp

118

actuating lever

119

sliding

120

Print Mark

121

Print Mark

Claims (15)

1. Process for connecting material webs made of packaging material or the like, namely a new, initial portion (59) of a new web (34) to a run-off end (58) of a run-off web (29), by adhesive bonding or by a tape (60), it being the case that the run-off web (29) and the new web (34) are each gripped separately by clamping elements (49, 50; 51, 52) and severed by a severing cutter (56) to form web ends which are adjacent to one another in the same plane and which are connected to each other, with the following features:

   a) the new portion (59) of the new web (34) is gripped by a web pickup (44) at the new reel (30), drawn off said new reel (30) and held ready in a plane offset to the plane of the run-off web (29),

   b) the clamping elements, namely clamping parts (51, 52) for gripping the new, initial portion (59) of the new web (34) by a clamping action, are arranged in a plane offset to the run-off web (29) in such a manner that the new, initial part (59) of the new web (34) can be conveyed by the web pickup (24) between the clamping parts (51, 52) that have been moved apart from each other,

   c) the run-off web (29) is conveyed between the clamping parts (49, 50) that are arranged at a distance from one another and positioned offset to the new, initial part (59) of the new web (34),

   d) the run-off web (29) and the new web (34) are gripped by the clamping action of the assigned clamping parts (49, 50 and 51, 52, respectively),

   e) the clamping parts (49, 50; 51, 52) are then moved with the clamped run-off web (58) and new web (34) into a common plane, with the run-off web (58) and new web (34) being severed and the resulting, facing web ends connected to each other.
2. Process according to Claim 1, characterized in that, for the purpose of forming the initial part (35) of the new web (34), a continuous outer covering of a new reel (30) or a continuous outer layer of the new web (34) is severed in the axial direction such that at least one free leg (38, 39) of the new web (34) hangs freely as a result of its own weight, and that the web leg (38, 39) is gripped on or at the new reel (30) and an initial part (35) is drawn off the new reel (30).
3. Process according to Claim 1 or 2, characterized in that an end part (36), which has been severed from the run-off web (29) and is connected to a run-off reel, is wound up on the run-off reel (28) by rotary movement in the opposite direction.
4. Process according to Claim 2 or 3, characterized in that the end part (36) of the run-off web (29), said end part being collected by being wound up on the run-off reel (28), and/or the initial part (35), which has been severed from the new web (34), is/are conveyed into a container (57), the end part (36) of the run-off web (29) being drawn off the run-off reel (28).
5. Process according to Claim 2 to 4, characterized in that a reel core (11) remaining on the operating stub (26) of the run-off reel (28) is drawn off the operating stub (26) in the axial direction and is conveyed into a collecting container (62), preferably after the end part (36) of the run-off web (29) has been removed.
6. Apparatus for connecting material webs made of packaging material or the like by adhesive bonding or by a tape (60) for the purpose of implementing the process according to one or more of the Claims 1 to 5, comprising a connecting assembly (40) with two pairs of clamping parts (49, 50; 51, 52), namely clamping parts (51, 52) for gripping the new web (34) and clamping parts (49, 50) for gripping the run-off web (29), and with a web pickup (44) that can be moved back and forth and by means of which the new, initial portion (59) of a new web (34) can be gripped in the region of the new reel (30), drawn off the latter and moved between the clamping parts (51, 52), which have been moved apart, to attain a final position of the web pickup (44), characterized in that the respective pairs (49, 50; 51, 52) for gripping the new web (34) and the run-off web (29) can be arranged in planes offset to one another, it being possible to move the clamping parts (51, 52) for the new web (34) in a transverse direction to achieve alignment with the clamping parts (49, 50) for the run-off web (29) and with a severing cutter (56) for severing the new, initial portion (59) of the new web (34) and the run-off end (58) of the run-off web (29).
7. Apparatus according to Claim 6, characterized in that the initial part (35) of the new web (34), said initial part being drawn off by the web pickup (44), can be transferred to a web conveyor, in particular to a conveying roller (53) with mating roller (54) which can be pressed against it, by means of which a further portion of the new web (34) can be drawn off the new reel (30).
8. Apparatus according to Claim 6 or 7, characterized in that, for the purpose of forming a free initial part (35) of the new web (34), a continuous covering or outer layer of the new reel (30) can be severed in the axial direction so as to form at least one web leg (38, 39), the pickup (44) gripping one of the web legs (38, 39) and drawing it off the new web (34).
9. Apparatus according to Claim 6 or one of the further Claims 7 or 8, characterized in that the run-off reel (28) and the new reel (30) are each arranged on a carrying stub, namely on an operating stub (26) and a supply stub (27), respectively, it being the case that the operating stubs (26, 27) with run-off reel (28) and new reel (30) are arranged on a common, two-armed reel arm (23, 24) which can be rotated about a central rotary bearing (25), and it being the case that, in a processing position of the run-off reel (28) or new reel (30), the reel arm (23, 24) is arranged in an obliquely directed position and the reel which is to be processed in each case is oriented downwards.
10. Apparatus according to Claim 6 or one of the further Claims 7 to 9, characterized in that mutually associated clamping parts (49, 50), on the one hand, and (51, 52), on the other hand, are in operational connection with one another, such that top clamping parts (49, 51) are arranged in a fixed starting position and bottom clamping parts (50, 52) can be moved in the direction of the fixed clamping parts (49, 51 ), preferably by means of a common crank mechanism (95).
11. Apparatus according to Claim 6 or one of the further Claims 7 to 10, characterized in that in each case at least one clamping part (49, 51) of the paired and opposite clamping parts is mounted elastically, preferably by virtue of connection to tension springs (87) and (104), respectively, it being the case that the clamping parts (50, 52), which can each be moved by a drive, can be moved into abutment against the elastically mounted clamping parts (49, 51) for the purpose of clamping the run-off web (29) and the new web (34), and can be moved beyond this point counter to the elastic force.
12. Apparatus according to Claim 10 or 11, characterized in that the crank mechanism (95) is connected to a carrier which can be moved up and down, in particular to a carriage (92), on which a pressure-exerting part (52) is attached directly and which acts, via compression springs (94), on another movable clamping part (52).
13. Apparatus according to Claim 6 or one of the further Claims 7 to 12, characterized in that the severing cutter (56), for the purpose of severing the webs - run-off web (29) and new web (34) - by being moved upwards from a bottom position, severs first of all the new web (34) and then the run-off web (29), it being the case that preferably the severing cutter is arranged on a pressure-exerting part (52), such that it can be moved counter to elastic pressure, and can be moved upwards, for the purpose of carrying out a severing cut, by a separate drive, in particular by a pressure-exerting lever (99) which, during the upwards movement of the pressure-exerting part (52), can have a fixed protrusion (101) acting on it.
14. Apparatus according to Claim 6 or one of the further Claims 7 to 13, characterized in that at least one pressure-exerting part (51), for the purpose of gripping one web - new web (34) - in a clamping position, is positioned beneath the movement plane of the other web - run-off web (29) - and, once the severing cut has been carried out, can be moved into a position above the run-off web (29) and new web (34) and, for returning to the (bottom) starting position, can be moved sideways and then to the starting position.
15. Apparatus according to Claim 6 or one of the further Claims 7 to 14, characterized in that the tape (60) can be advanced up to the webs - run-off web (29), new web (34) - by a movable tape holder (61), it being the case that the tape holder (61) has a retaining head (108) on which the tape (60) is retained by suction air, and it being the case that the tape holder (61), which is preferably of angled design, can be pivoted out of a position in which the retaining head (108) is oriented upwards into a position in which the retaining head (108) is oriented downwards.

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