EP0940360A2 - 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 material webs from packaging material or the like, namely an end of a runway with a fresh start to be connected new line by connecting means, in particular Adhesive tape, the new track and the runway by clamping grasped, severed and that end of flow thus formed on the one hand and new beginning on the other hand. Furthermore, the invention relates to a device for Execution of the procedure.

Packaging machines often process sheet-like packaging material for making blanks. Packaging machines with high performance, e.g. B. cigarette packaging machines, have a large consumption of packaging material. To the Connection of a material web of a new, full bobbin - New web - to a running material web of an almost empty one Bobine - runway - are automatically working connection units known that the Neubahn without manual intervention connect to the runway. In a known connection unit (EP 0 638 499) becomes a free end of the new railway subtracted from the "full" bobbin and a connecting unit fed. In the same area, the runway and the New web pressed together by clamps and severed. The new beginning created thereby and the end of it will be connected by an adhesive tape.

The invention has for its object the measures for automatic connection of a new track to a runway improve, especially performance and reliability to increase.

The method according to the invention is used to achieve this object characterized in that the runway on the one hand and the Neubahn, on the other hand, is gripped by itself The runway as well as an end piece or an initial piece from the new track be separated and that the end of the run thus formed and the new beginning are connected.

The separate preparation of the runway on the one hand and the Neubahn, on the other hand, increased by separating sections of track the speed of work and safety. In doing so Clamping or holding elements used, the created ends, namely expiry and new beginning, in a position immediately bring next to each other so that a lanyard, so a Adhesive tape, adhesive label or a glue in the area a web overlap can be attached.

The beginning of the new course is formed in a special way. An outer closed position of the wound new track on the The new bobbin is placed in an axis-parallel direction - across the material web - severed, in such a way that an initial piece of Neubahn as a leg hangs down freely. This free start is grasped by a web holder and to the connecting unit drawn.

The web holder is designed in a special way, in particular with a gripping element for gripping the material web underneath Formation of a fold gripped by clamping action. Furthermore the connection unit is special.

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 in more detail 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 corresponding 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

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 with the handling of wrapped packaging material, so Bobbin 10. These can be made of paper, tinfoil, foil or a other sheet 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 Bobinen 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 long sides of the operating unit 22 one carrying device for bobbins 10 or tenons for Receiving bobbins 10 arranged, namely a bobbin arm 23, 24 as a two-armed lever with a central pivot bearing 25 the ends of the bobbin arm 23, 24 is a support pin for arranged a bobbin 10, namely a working pin 26 and a Storage spigot 27. Spigot 26, 27 protrude freely from the bobbin arm 23, 24 stored. The one 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 who joined Bobinen-Magazin 16, 17 Storage pin 27 is used to hold a new, complete Replacement or new bobbin 30. The supply pin 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 pin 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 be 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 reels 21 are Support pin provided, namely also working pin 26 and Supply spigot 27.

Before the drain bobbin 28 is consumed, the new bobbin 30 is run through Pivotal movement of the bobbin arm 23, 24 brought into position and a new track 34 subtracted from the new pool 30 with the run-off track 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 new course 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 is passed through 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 separation unit 37 is effective, namely is moved up from a lower waiting position (Fig. 2) until it touches the circumference of the 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 a tangential relative position on opposite 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 the new 30.

The runway 29 and the new runway 34 are connected in the area a connecting 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 passes 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 an organ specially trained provided for grasping and pulling off the initial piece 35, namely a web pickup 44. This is in an oblique, 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 through. 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 Clamp pieces 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 initiating the rail connection, this is done by the rail pickup 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 57.

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 sprags 49, 50 held, the separated end piece 36, however becomes free (Fig. 9). The runway 29 is by the (common) Cutting knife 56, which together with the Clamping pieces 51, 52 are 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 tape or by a tape 60. This is by a Tape holder 61 supplied and on the free side, namely between adjacent clamping pieces 49 and 51, at the drain end 58 and New 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). Of the Transport of the runway 29 is resumed. In the meantime the web memory 43 has been reduced and can now rebuilt by corresponding increased output 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 pickup 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 11 deducted. The end piece 36 is 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 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) kept 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 pickup 44 can be moved with a stationary linear unit 65 connected. This extends in the plane of movement 45, is therefore directed obliquely. Of the Web pickup 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 on one Bracket 68 attached. The gripper 67 is present Trap made of clamping elements for grasping the material web, namely from two relatively movable clamping jaws 69, 70 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 actuating, 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 attached to 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 roller 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 guide plate 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 approximately cuboid shape. Various Organs are directly or indirectly upright Support frame 82 stored, which consists of a box-like arrangement upright supporting walls 83, 84 and transverse walls 85.

Important elements of the connecting unit 40 are the clamping pieces 49..52. That of the new course 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 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 movable.

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 compression springs 94 arranged.

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 via the compression springs 94 from a 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 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 separating cut in the region 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 a holding head 108 with suction bores (not shown) is arranged to hold the tape 60 by means of suction air. Of 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 on the drain end 58 on the one hand and the New beginning 59 on the other hand, so that they 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 positions 49, 50; 51, 52 raised mean, which brings the ends of the webs of material to the holding head 108 or pressed onto 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 rotary 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 carries out. Part of the pivot bearing 110 is also a deflection wheel for the timing belt 111.

To carry out 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 29.

An upper end of the rotating shaft 116 is 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 movable 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 according to the cut, that is in coordination with the printing that matches each cut. For this purpose, the procedure is that the runway 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 run 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.

Reference symbol list:

10th

Bobine

11

Bobbin core

12th

Packaging machine

13

Pack of cigarettes

14

Material unit

15

Folding turret

16

Bobinen magazine

17th

Bobinen magazine

18th

Bobbin stock

19th

Beam

21

Banderole bobbin

22

Operating unit

23

Bobbin arm

24th

Bobbin arm

25th

Pivot bearing

26

Working spigot

27

Supply spigot

28

Drain bobbin

29

Runway

30th

Newborns

31

Foil Railway

32

Paper web

33

Banderole

34

Neubahn

35

Initial piece

36

Tail

37

Separation unit

38

Web leg

39

Web leg

40

Connecting unit

41

Deflection roller

42

Deflection roller

43

Railway store

44

Train pick-up

45

Plane of movement

47

Guide roller

48

Swivel arm

49

Clamp

50

Clamp

51

Clamp

52

Clamp

53

Conveyor roller

54

Counter roll

55

lever

56

Cutting knife

57

container

58

Expiration

59

New beginning

60

Tape

61

Tape holder

62

Collection container

63

Support bracket

64

Support bracket

65

Linear unit

66

carriage

67

Gripper

68

bracket

69

Jaw

70

Jaw

71

Swivel arm

72

Actuating cylinder

73

loop

74

Mammal

75

Mammal

76

Scenery tour

77

Supporting wall

78

Operating lever

79

cylinder

80

Baffle

81

Guide plate

82

Support frame

83

Supporting wall

84

Supporting wall

85

Transverse wall

86

attack

87

Tension spring

88

approach

89

approach

90

carriage

91

guide

92

carriage

93

Guide rod

94

Compression spring

95

Crank mechanism

96

Supporting body

97

Slide rod

98

feather

99

Push lever

100

The End

101

Cam

102

Pressure roller

103

guide

104

Tension spring

105

attack

106

Guide body

107

Tape lever

108

Holding head

109

End leg

110

Pivot bearing

111

Timing belt

112

Coupling piece

113

Linear drive

114

End area

115

Pivot bearing

116

Rotary shaft

117

Holding camp

118

Operating lever

119

Sliding body

120

Print mark reader

121

Print mark reader

Claims (21)

Method for connecting material webs made of packaging material or the like, namely a new beginning (59) of a new web (34) with a drain end (58) of a drain web (29), by gluing or by a tape (60), the drain web (29) and the new path (34) is gripped, severed and the end of the run (58) thus formed is connected to the new beginning (59), characterized in that the runway (29) on the one hand and the new path (34) on the other hand each grips by itself and a starting piece (35) and an end piece (36) are separated from the run-off track (29) and from the new track (34), and that the ends thus formed, namely the end of the run-off (58) and the new beginning (59), in one Be positioned plane adjacent to each other for connecting or for attaching the tape (60). Method according to claim 1, characterized in that to form the initial piece (35) of the new web (34), a closed outer covering of a new bobbin (30) or a closed outer layer of the new web (34) is severed in the axial direction, in particular in such a way that at least one free web leg (38, 39) of the new web (34) is formed hanging freely due to its own weight and that the web leg (38, 39) is gripped on or on the new bobbin (30) and an initial piece (35) of the new bobbin (30 ) is subtracted. Method according to claim 1 or 2, characterized in that the initial piece (35) of the new web (34) drawn off from the new bobbin (30) is pulled through a connecting unit (40), in particular in a plane parallel to the conveying plane of the run-off path (29). Method according to claim 1 or one of the further claims, characterized in that an end piece (36) separated from the run-off track (29) is wound onto the run-off bobbin (28) by a counter-rotating movement. Method according to claim 1 or one of the further claims, characterized in that the end piece (36) of the run-off track (29) collected by winding on the run-off reel (28) and / or the start-up piece (35) separated from the new runway (34) into one Container (57) is conveyed, with the end piece (36) of the run-off track (29) being pulled off the run-off bobbin (28). Method according to claim 1 or one of the further claims, characterized in that a bobbin core (11) remaining on the working pin (26) is drawn off from the working pin (26) in the axial direction and conveyed into a collecting container (62), preferably after removing the End piece (36) of the run-off track (29). Device for connecting material webs made of packaging material or the like, namely a new beginning (59) of a new web (34) with a drain end (58) of a drain web (29), wherein the web (29) and new web (34) by clamping pieces (49, 50 ; 51, 52) detectable and runway (29) and new course (34) can be separated by a separating knife (56) to form ends to be connected by a tape (60) - end of run (56) and new beginning (59) -, thereby characterized in that clamping pieces (49, 50) or (51, 52) assigned to the drain track (29) on the one hand and the new track (34) on the other hand can be actuated independently of one another to fix the drain track (29) or new track (34) and drain track (29 ) and the new web (34) can be severed in succession, the clamping pieces (49, 50) and (51, 52) with the severed webs being movable in a common plane for attaching the tape (60). Apparatus according to claim 7, characterized in that the clamping pieces (49, 50) on the one hand and (51, 52) on the other hand , which are arranged at a distance from one another, are positioned in mutually offset planes corresponding to the movement planes of the runway (29) and new track (34) and that the clamping pieces (49, 50; 51, 52) with the severed web ends - drain end (58), new beginning (59) - can be moved into a common plane. Apparatus according to claim 7 or 8, characterized in that the clamping pieces are part of a connecting unit (40) through which the run-off track (29) runs continuously, the new track (34) to be connected being moved back and forth by a track pick-up (44) New track (34) can be removed and pulled through the connecting unit (40). Apparatus according to claim 9 or one of the further claims, characterized in that the starting piece (35) of the new web (34) drawn off from the web pick-up (44) can be transferred to a web conveyor, in particular to a conveyor roller (53) with a pressable counter roller (54), through which another section of the new track (34) can be pulled off the new bobbin (30). Device for detecting a start of a material web, in particular a free end or a web leg (38, 39) of a new web (34) wound as a bobbin, characterized in that a web pick-up (44) has a reciprocating gripper (67) for Detecting the web, in particular an initial piece (35) of the new web (34), the gripper (62) having at least two holding members, in particular clamping jaws (69, 70), into which a loop (73) or fold formed in the open position Web or new web (34) can be inserted for clamping detection. Apparatus according to claim 11 or one of the further claims, characterized in that for gripping the web or new web (34) by the gripper (67) a section of the web can be pushed together to form a sideways loop (73) in the region of the clamping jaw (69 , 70), movable gripping elements for gripping the web or new web (34) being arranged on the gripper (67), namely preferably two suction cups (74, 75) arranged at a distance from one another, which grasp the web and by reducing the distance between the Suction cups (74, 75) form the loop (73) or fold to be detected. Apparatus according to claim 7 or one of the further claims, characterized in that in order to form a free starting piece (35) of the new web (34), a closed covering or outer layer of the new web (30) can be severed in the axial direction to form at least one web leg ( 38, 39), the pickup (44) gripping one of the web legs (38, 39) and pulling it off the new web (34). Apparatus according to claim 7 or one of the further claims, characterized in that the drain bobbin (28) and the new bobbin (30) are each arranged on a supporting pin, namely on a working pin (26) or a supply pin (27), the working pins (26, 27) with drain bobbin (28) and new bobbin (30) are arranged on a common, two-armed bobbin arm (23, 24) which is rotatable about a central pivot bearing (25) and wherein the bobbin arm (23, 24) in one Processing position of the drain bobbin (28) or new bobbin (30) is arranged in an oblique position and the bobbin to be machined points downward. Device according to claim 7 or one of the further claims, characterized in that clamping pieces (51, 52) for gripping the new web (34) or the starting piece (35) adjacent to an entry side of the material webs within the connecting unit (40) and clamping pieces ( 49, 50) for detecting the run-off path (29) are arranged on the side assigned to an exit side of the material webs. Apparatus according to claim 7 or one of the further claims, characterized in that mutually associated clamping pieces (49, 50) on the one hand and (51, 52) on the other hand are in geared connection with one another, in particular in such a way that upper clamping pieces (49, 51) have a fixed connection Starting position arranged and lower clamping pieces (50, 52) in the direction of the fixed clamping pieces (49, 51) are movable, preferably by a common crank mechanism (95). Device according to claim 7 or one of the further claims, characterized in that at least one clamping piece (49, 51) of the clamping pieces lying opposite one another in pairs is elastically mounted, preferably by connection to tension springs (87) or (104), the respectively by Drive movable clamping pieces (50, 52) to rest against the elastically mounted clamping pieces (49, 51) for clamping the runway (29) or the new track (34) and can also be moved against the elastic force. Apparatus according to claim 16 or one of the further claims, 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), to which a pressure piece (52) is directly attached and which Compression springs (94) act on another movable clamping piece (52). Apparatus according to claim 7 or one of the further claims, characterized in that the separating knife (56) for severing the tracks - runway (29) and new course (34) - by moving upwards from a lower position, first the new course (34) and then the runway (29) severed, the separating knife preferably being arranged movably against elastic pressure on a pressure piece (52) and being movable upwards by a separate drive for performing a separating cut, in particular by a pressure lever (99) which is moved by one when the pressure piece (52) moves upwards fixed cam (101) can be acted upon. Apparatus according to claim 7 or one of the further claims, characterized in that at least one pressure piece (51) for gripping a web - new web (34) - is positioned in a clamping position below the plane of movement of the other web - run-off web (29) - and after carrying out the Separating cut can be moved into a position above the run-off track (29) and new track (34) and can be moved sideways to return to the (lower) starting position and then to the (lower) starting position. Device according to claim 7 or one of the further claims, characterized in that the tape (60) can be fed to the webs - run-off web (29), new web (34) - by means of a movable tape holder (51), the tape holder (61) holding a holding head (81) on which the tape (60) is held by suction air, the preferably angular tape holder (61) being pivoted from a position with the holding head pointing upwards (81) being pivoted into a position with the holding head pointing downwards ( 108) is movable.

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