EP3222569B1 - Splice assembly - Google Patents

Description

The invention relates to a splicing arrangement for splicing finite webs of material to form an endless web of material, in particular for splicing finite webs of paper to produce an endless web of corrugated board in a corrugated board plant. Furthermore, the invention is aimed at a method for splicing finite webs of material to form an endless web of material.

Known splicing arrangements connect a finite web of material that is coming to an end with a new finite web of material, so that a quasi-endless web of material is created. This process is called splicing and a corresponding arrangement is called splicing or splicing arrangement in technical jargon. The splicing arrangements of the prior art often have the disadvantage that even with these, the splicing of two finite webs of material is still complex.

From the DE 40 13 656 A1 a generic splice arrangement according to the preamble of claim 1 and a method for splicing webs of material according to the preamble of claim 8 are known.

the EP 1 770 038 A2 , DE 10 2014 207 050 A1 , EP 1 801 058 A2 and DE 10 2006 003 200 A1 such as U.S. 2012/0211142 A1 disclose other prior art splicing arrangements.

The invention is therefore based on the object of providing a splice arrangement which is particularly simple and functionally reliable as well as economical splicing of finite lengths of material. In particular, a splice arrangement is to be created which is capable of splicing in an automated or independent manner. A corresponding procedure is also to be provided.

According to the invention, this object is achieved by the features specified in independent claims 1 and 8 .

The table device and the first preparation device are arranged adjacent to one another in their material web insertion position. It is advantageous if the table device and the first preparation device are each in contact with one another in their material web holding position and form a first table preparation unit. It is expedient if the finite first web of material is held in the respective holding position by clamping or friction. The table device and the first preparation device are advantageously capable of assuming exactly two holding positions.

The finite first material web is held in the first stop of the table device and the first preparation device, while a movement of the finite first material web relative to the table device and/or the first preparation device is still possible, in particular when a corresponding force, in particular tensile force, is applied to the finite first material web is. This is extremely user-friendly.

The preparation devices can be conveniently moved independently of one another. It is advantageous if a first and/or second displacement drive of the first or second preparation device is/are designed as an electric drive, pneumatic drive or hydraulic drive.

The actuating device advantageously actuates the connecting device in such a way that the two finite webs of material are spliced to one another automatically or in an automated manner. In particular, at least most of the steps required for splicing the two finite webs of material run automatically or automatically.

The actuating device is preferably of an electrical or electronic type. It is preferably designed as a control device.

It is advantageous if the actuating device has a signal connection with the first preparation device and the second preparation device. The actuating device is favorably in signal connection with the first connecting device and the second connecting device. It is expedient if the actuating device has a signal connection with the table device. It is expedient if the actuating device is in signal communication with the first unwinding device and the second unwinding device. The signal connection can be wireless or wired. Combinations are possible.

Advantageously, the table device can be displaced between the preparation devices along the guide. It is advantageous if the preparation devices can be displaced along the guide. The table device preferably has a table device drive.

The first connecting device advantageously connects the web end of the finite first web of material with the web beginning of the finite second web of material. This connection is achieved in particular by gluing.

It is advantageous if the second connecting device connects the web end of the finite second web of material to the web beginning of the finite first web of material. This connection is advantageously made by gluing.

It is advantageous if the splice arrangement also includes a displaceable storage carriage for the uninterrupted or delay-free conveyance of the endless web of material.

It is advantageous if the table device and the first preparation device are moved closer together in the second holding position compared to the first holding position or their overall length is/is smaller.

It is advantageous if the finite first web of material is a finite first web of paper. Preferably, the finite second web of material is a finite second web of paper. For example, a corrugated web can be produced from the endless web of material. Alternatively, this remains a smooth runway.

The at least one first holding element is designed, for example, as a spring element, in particular an elastically deformable spring element. It is advantageous if the at least one first holding element is metallic. In the first holding position of the table device and the first preparation device, the at least one first holding element favorably presses the finite first material web against the first transport roller, with a displacement of the finite first material web in relation to it, in particular when a corresponding force, in particular tensile force, is applied to the finite first material web the at least one first holding element is possible. It is advantageous if, in the first holding position, the at least one first holding element is deformed by the first transport roller and/or the finite first web of material. The table device and the first preparation device are favorably held together in their first holding position. This is done, for example, by appropriately driving the table device and/or the first preparation device.

It is advantageous if the first coupling unit is a mechanical coupling unit. The first coupling unit is preferably a first locking unit. In particular, the first coupling unit comprises an actuatable first coupling bar and a first coupling counterpart for interacting with the first coupling bar in its coupled state. It is expedient if the first coupling bolt is arranged on the table device and the first coupling counterpart is arranged on the first preparation device. In the second holding position, the table device and the first preparation device are favorably held together so that a distance between them is preferably prevented. It is advantageous if a second coupling unit is designed to correspond to the first coupling unit.

It is advantageous if the at least one first fixing element is formed, for example, from a friction material such as rubber, caoutchouc or the like. It is advantageous if the at least one first fixing element presses the finite first material web against the first transport roller in the second holding position. It is expedient if, in the second holding position, the at least one first fixing element is deformed by the first transport roller and/or the finite first web of material. In the second holding position, a displacement of the finite first material web relative to the at least one first fixing element is prevented, in particular when a corresponding force, in particular tensile force, is applied to the finite first material web.

Further advantageous refinements of the invention are specified in the dependent claims.

The movement of the table device and the first preparation device according to dependent claim 3 is advantageously carried out by a corresponding drive of the table device and/or the first preparation device. The finite first web of material is held immovable in relation to the table device and/or the first preparation device.

According to the dependent claim 3, the table device and the first preparation device accelerate smoothly or start them smoothly. A start acceleration function, in particular a ramp, is advantageously provided for this purpose.

The configuration according to dependent claim 4 is extremely reliable. In particular, damage to the finite first material web can be avoided particularly well in this way, as a result of which production interruptions can ultimately be effectively prevented. Conveniently, the table means and the first preparing means stop smoothly. A delay function, in particular a ramp, is preferably provided for this purpose.

The splicing according to dependent claim 5 is extremely economical and fast.

The second preparation device is advantageously designed in accordance with the first preparation device. It is advantageous if the second preparation device is actuated in the same way as the first preparation device in order to splice the finite second web of material. The preparation devices are preferably mirrored or arranged symmetrically with respect to a vertically running plane of symmetry. It is advantageous if the table device is embodied symmetrically, in particular with respect to a vertically running plane of symmetry.

It is advantageous if the first unwinding device has a first unwinding braking unit for generating a first unwinding braking force of between 10 N and 300 N when the table device and the first preparation device are displaced to the first and/or second connecting device. The respectively prevailing first unwind braking force in the splice arrangement is particularly dependent on the current diameter of the first roll of material.

Subclaims 2 to 7 may also be the subject of independent claim 8. They also relate analogously to the second preparation device.

Fig. 1 bis 4

schematische Ansichten einer erfindungsgemäßen Spliceanordnung, die aufeinanderfolgende Spliceschritte zeigen,

Fig. 5

eine schematische Ansicht einer ersten Vorbereitungseinrichtung und einer Tischeinrichtung der Spliceanordnung, die sich in ihrer ersten Haltestellung befinden,

Fig. 6

eine der Fig. 5 entsprechende Ansicht, wobei sich die Tischeinrichtung und die erste Vorbereitungseinrichtung in ihrer zweiten Haltestellung befinden,

Fig. 7 bis 10

schematische Ansichten der in Fig. 1 bis 4 gezeigten Spliceanordnung, wobei auch Geschwindigkeitsfunktionen einer ersten Tisch-Vorbereitungseinheit aus Tischeinrichtung und erster Vorbereitungseinrichtung mit dargestellt sind, und

Fig. 11

eine schematische Ansicht der in Fig. 1 bis 4 gezeigten Spliceanordnung, wobei auch eine alternative Geschwindigkeitsfunktion einer ersten Tisch-Vorbereitungseinheit aus Tischeinrichtung und erster Vorbereitungseinrichtung mit dargestellt ist.

In the following, preferred embodiments of the invention are described by way of example with reference to the attached drawing. show:

Figures 1 to 4

schematic views of a splice arrangement according to the invention, showing successive splicing steps,

figure 5

a schematic view of a first preparation device and a table device of the splice arrangement, which are in their first holding position,

6

one of the figure 5 corresponding view, with the table device and the first preparation device being in their second holding position,

Figures 7 to 10

schematic views of the in Figures 1 to 4 Splice arrangement shown, with speed functions of a first table preparation unit consisting of a table device and a first preparation device also being shown, and

11

a schematic view of in Figures 1 to 4 shown splice arrangement, wherein an alternative speed function of a first table preparation unit from table device and first preparation device is also shown.

Referring first to Figures 1 to 4 includes a corrugated board plant (not shown in its entirety) a known corrugated board production device (not shown) for the production of a one-sided laminated web of corrugated board (not shown). Such a corrugated cardboard production device is generally also referred to as a single facer.

The corrugated cardboard production device comprises a corrugating device with corrugating rollers for producing a corrugated web from a material web. For connecting the corrugated sheet to a smooth sheet the corrugated board production device has a glue applicator which applies glue to tips of the corrugation of the corrugated web. The corrugated cardboard production device has a pressing module for pressing the smooth web against the glued corrugated web, whereby the corrugated cardboard web laminated on one side is formed from the corrugated web and the smooth web.

A splicing arrangement 1 for providing an endless web of material 2 and a further splicing arrangement (not shown) for preparing another endless web of material (not shown) are arranged upstream of the corrugated cardboard production device. From the endless web of material 2, the corrugated web can be produced, which is part of the one-sided corrugated web and is also endless. Alternatively, the endless web of material 2 forms the smooth web of the web of corrugated cardboard laminated on one side. The smooth track is also endless. The corrugated board lined on one side can be laminated with another endless smooth web or corrugated board lined on one side. The further smooth web can be formed by the endless web of material 2 .

After the two splice assemblies 1 are preferably identical, only in the following is Figures 1 to 4 splice assembly 1 shown described in detail. First, their structure will be explained.

The splice arrangement 1 comprises a first unwinding device 5 for unwinding a finite first web of material 3 from a first roll of material 4 and a second unwinding device 8 for unwinding a finite second web of material 6 from a second roll of material 7. The finite first web of material 3 and the finite second web of material 6 are to deploy the endless web of material 2 by means of the splice assembly 1 firmly connected.

The splice arrangement 1 has a base frame 9 with a base frame base 10, a base frame stand 11 and a base frame support 12. The base frame base 10 is attached to a floor or subsurface 13. On the base pedestal 10, the base stand 11 is attached at the top. The base frame stand 11 extends essentially vertically or perpendicularly to the floor 13. The base frame support 12 is arranged on an end region of the base frame stand 11 opposite the base frame pedestal 10 and runs essentially parallel to the floor 13 or horizontal.

The first unwinding device 5 and the second unwinding device 8 extend from the base frame pedestal 10. The unwinding devices 5, 8 are pivotably mounted on the base frame pedestal 10 and arranged opposite one another relative to the base frame stand 11.

The first unwinding device 5 has a first receiving part (not shown) for receiving the first roll of material 4, which is guided into a central opening in the first roll of material 4 and is mounted between two parallel first holding arms 14 of the first unwinding device 5 about a first axis of rotation 15 .

The second unwinding device 8 is designed in accordance with the first unwinding device 5 . For receiving the second roll of material 7, it has a second receiving part (not shown), which is guided in a central opening of the second roll of material 7 and between two parallel to one another extending second holding arms 16 of the second unwinding device 8 is mounted about a second axis of rotation 17 . The axes of rotation 15, 17 are horizontal and parallel to one another.

The finite first web of material 3 is fed to a cutting and connecting device 19 of the splice arrangement 1 via a first feed roller 18 , while the finite second web of material 6 is fed to the cutting and connecting device 19 via a second feed roller 20 . Each feed roller 18, 20 is rotatably mounted on a first or second support arm 21, 22 which is arranged pivotably on the base frame support 12 above the respective material roll 4 or 7 for tensioning the respective finite material web 3 or 6.

The cutting and connecting device 19 is used to produce the endless web of material 2 from the finite webs of material 3, 6. It comprises a first preparation device 23, a second preparation device 24, a first connecting device 25, a second connecting device 26, a table device 27 and a guide 28 .

The first preparation device 23 is according to FIG figure 1 currently on the base frame support 12 above the first roll of material 4, while the second preparation device 24 according to figure 1 is currently in the area of the second roll of material 7 above the same on the base frame support 12 .

between the in figure 1 Preparation devices 23, 24 arranged at the ends, the guide 28 runs straight in/on the base frame support 12 and parallel to the floor 13, the preparation devices 23, 24 being displaceable along the guide 28.

The table device 27 can also be displaced along the guide 28 . It is arranged between the preparation devices 23,24. The preparation devices 23, 24 and the table device 27 are displaceable along the guide 28 and relative to the connecting devices 25, 26.

The connecting devices 25, 26 are arranged along the guide 28 at a distance from one another. They are arranged on the base frame support 12 above the guide 28 .

The preparation devices 23, 24 are constructed identically and are arranged symmetrically with respect to a vertical plane of symmetry.

The first preparation device 23 has a rotatably mounted first transport or holding roller 29 for feeding the finite first material web 3 and a first cross-cutting unit 30 with an actuatable first cutting blade 31 for cross-cutting the fed finite first material web 3, for example. With the first cross-cutting unit 30, the finite first material web 3 can then be severed transversely to its longitudinal extent or conveying direction.

The first transport roller 29 of the first preparation device 23 is provided with an adhesive layer, for example, for holding and feeding the finite first material web 3 and can be displaced along the guide 28 for transporting the finite first material web 3 to the first or second connecting device 25, 26. An elaboration of the first Transport roller 29 without an adhesive layer is alternatively possible. The first transport roller 29 is then non-adhesive or smooth on the outside, for example.

The second preparation device 24 has a rotatably mounted second transport or holding roller 32 for feeding the finite second material web 6 and, for example, a second cross-cutting unit 33 with an actuatable second cutting blade 34 for cross-cutting the fed finite second material web 6 . With the second cross-cutting unit 33, the finite second web of material 6 can then be severed transversely to its longitudinal extension or conveying direction.

The second transport roller 32 of the second preparation device 24 is provided with an adhesive layer, for example, for holding and feeding the finite second material web 6 and can be displaced along the guide 28 for transporting the finite second material web 6 to the first or second connecting device 25, 26. A configuration of the second transport roller 32 without an adhesive layer is alternatively possible. The second transport roller 32 is then non-adhesive or smooth on the outside, for example.

Each preparation device 23, 24 has its own first or second displacement drive 35, 36 for its displacement along the guide 28.

The connecting devices 25, 26 are of identical design and are arranged symmetrically on the base frame support 12 with respect to a vertical plane of symmetry.

The first connecting device 25 comprises cutting the finite first web of material 3 before connecting it to the finite second web of material 6, a first cutting unit 37 with an actuatable first cutting blade 38 and a first pressure roller 39 for connecting the finite material webs 3, 6 to form the endless material web 2. The first cutting unit 37 of the first connecting device 25 and the first pressure roller 39 are immediately adjacent to the guide 28 attached to the base frame support 12 in such a way that the transport rollers 29, 32 of the preparation devices 23, 24 and the table device 27 can be guided past the first connecting device 25 along the guide 28.

The second connecting device 26 comprises a second cutting unit 42 with an actuatable second cutting knife 43 for cutting the finite second material web 6 before it is connected to the finite first material web 3, and a second pressure roller 44 for connecting the finite material webs 3, 6 to form the endless material web 2. The second cutting unit 42 of the second connecting device 26 and the second pressure roller 44 are fastened to the base frame 12 directly adjacent to the guide 28 in such a way that the transport rollers 29, 32 of the preparation devices 23, 24 and the table device 27 can be moved along the guide 28 on the second connecting device 26 can be guided past.

The second pressure roller 44 of the second connecting device 26 forms in figure 4 shown position of the first transport roller 29 of the first preparation device 23 with this a first connecting gap 40 for the passage of the finite webs of material 3, 6 to be connected and a first adhesive tape 41, which is adhesive on both sides and in front of it manually at a web start of the finite first web of material 3 to Connection with the finite second web of material 6 and the endless web of material 2 has been attached.

In a correspondingly displaced position of the second transport roller 32 of the second preparation device 24, the first pressure roller 39 of the first connecting device 25 forms a second connecting gap (not shown) with the latter for the passage of the finite material webs 3, 6 to be connected and a second adhesive tape (not shown). , which is adhesive on both sides and has previously been attached manually to a web start of the finite second web of material 6 for connection to the finite first web of material 3 or the endless web of material 2 .

Depending on its position, the table device 27 interacts with the first preparation device 23, the second preparation device 24, the first connecting device 25 or the second connecting device 26 and can be displaced along the guide 28, in particular also independently of these.

A first deflection roller 45 is arranged downstream of the cutting and connecting device 19 in the transport direction 47 of the endless web of material 2 and is mounted on the top of the base frame support 12 in the region of the first roll of material 4 . The endless web of material 2 is guided around the first deflection roller 45 .

The first deflection roller 45 is followed by a second deflection roller 46 in the transport direction 47 of the endless material web 2 , which is rotatably mounted on a storage carriage 48 . The storage carriage 48 is arranged in the area of an upper end of the base frame support 12 facing away from the base frame stand 11 and can be displaced along a storage carriage guide 49 which extends parallel to the floor 13 and above the guide 28 . The storage car guide 49 gives a displacement path for the storage carriage 48 and extends essentially along the entire base frame support 12. The storage carriage 48 can be displaced between a first end position and a second end position. It can be displaced in opposite displacement directions. In the first end position, the storage carriage 48 is arranged adjacent to a material web outlet 50 of the splice arrangement 1, while in the second end position the storage carriage 48 is at a distance from the material web outlet 50. In figure 1 the storage carriage 48 is in the second end position.

In order to deflect the endless material web 2 , a third deflection roller 51 is rotatably mounted on the base frame support 12 in the area of the material web outlet 50 . The third deflection roller 51 is arranged downstream of the second deflection roller 46 with respect to the transport direction 47 of the endless material web 2 .

The third deflection roller 51 is followed by a fourth deflection roller 52 with respect to the transport direction 47 of the endless material web 2 , which is rotatably mounted on the storage carriage 48 between the second deflection roller 46 and the third deflection roller 51 . The axes of rotation of the deflection rollers 45, 46, 51, 52 run horizontally and parallel to one another.

The splice arrangement 1 has a storage carriage adjustment drive 53 for moving the storage carriage 48 along the storage carriage guide 49.

Like in particular figure 5 and 6 shows, the table device 27 carries a first coupling bolt 54 and a second coupling bolt 55. The two coupling bolts 54, 55 can be actuated, in particular displaced. The first coupling bar 54 faces the first preparation device 23 , while the second coupling bar 55 faces the second preparation device 24 .

The first preparation device 23 carries a first coupling counterpart 56. The second preparation device 24 carries a second coupling counterpart 57. The coupling counterparts 56, 57 are each formed, for example, by a pin, projection, wall area or the like.

The first coupling latch 54 and the first coupling counterpart 56 together form a first coupling unit, so that the first preparation device 23 and the table device 27 can be detachably coupled to one another via the first coupling unit. The second coupling bolt 55 and the second coupling counterpart 57 together form a second coupling unit, so that the second preparation device 24 and the table device 27 can be detachably coupled to one another via the second coupling unit.

The first coupling bar 54 and the second coupling bar 55 are connected to an actuating device 73 which is able to actuate the first coupling bar 54 and/or the second coupling bar 55 . In particular, the actuating device 73 has an axially displaceable actuating rod 74 which is in direct or indirect actuating connection with the first coupling bar 54 and the second coupling bar 55 . A displacement of the actuating rod 74 thus results in both the first coupling bar 54 and the second coupling bar 55 being actuated. In particular, the coupling bar 54 can be pivoted about a first pivot axis 54' and the second coupling bar 55 can be pivoted about a second pivot axis 55'. In particular, the Coupling bars 54, 55 are coupled to one another in opposite directions, so that, for example, a movement of the first coupling bar 54 into its coupling position results in a movement of the second coupling bar 55 into its release position.

The table device 27 supports a first holding element 75 which faces the first preparation device 23 and is deformable. It is preferably made of a metal material and constituted by a leaf spring. The first holding member 75 defines a first deformation chamber.

In addition, the table device 27 carries a first fixing element 76 which faces the first preparation device 23 and is deformable. The first fixing element 76 is preferably in the form of a block or plate and is formed, for example, from a friction material. In use, it advantageously provides a higher frictional force than the first holding element 75 and is arranged adjacent to the first holding element 75 .

The table device 27 also carries a second holding element 77 which faces the second preparation device 24 and is deformable. It is preferably made of a metal material and constituted by a leaf spring. The second holding element 77 delimits a second deformation chamber.

In addition, the table device 27 carries a second fixing element 78 which faces the second preparation device 24 and is deformable. The second fixing element 78 is preferably in the form of a block or plate and is formed, for example, from a friction material. It delivers on the job favorably has a higher frictional force than the second holding element 77 and is arranged adjacent to the second holding element 77 .

The splice arrangement 1 also has an electronic control device 58. The control device 58 has a signal connection to the first preparation device 23 via a first signal connection 59. The control device 58 has a signal connection to the second preparation device 24 via a second signal connection 60 . The control device 58 has a signal connection to the first connecting device 25 via a third signal connection 61 . The control device 58 has a signal connection to the second connecting device 26 via a fourth signal connection 62 . The control device 58 is in signal connection with the storage carriage 48 via a fifth signal connection 63 . The control device 58 is in signal connection with the first unwinding device 5 via a sixth signal connection 64 . The control device 58 is in signal connection with the second unwinding device 8 via a seventh signal connection 65 . The control device 58 is in signal connection with the second unwinding device 8 via an eighth signal connection 68 .

Below is the functioning of the splice arrangement 1 starting from figure 1 described in more detail.

The finite second web of material 6 is unrolled from the second roll of material 7 and is thus conveyed. It is guided to the cutting and connecting device 19 via the second feed roller 20, where the finite second material web 6 is deflected by approximately 90°. The finite second web of material 6 is guided between the spaced-apart pressure rollers 39, 44 and rests against these on the peripheral side in some areas.

After the cutting and connecting device 19, the finite second material web 6 or the endless material web 2 is guided around the first deflection roller 45 and deflected there by approximately 180°. The endless web of material 2 is then guided to the second deflection roller 46, where it is again deflected by approximately 180°. After the second deflection roller 46, the endless web of material 2 is guided around the third deflection roller 51, where it is again deflected by approximately 180°. The endless material web 2 is then guided around the fourth deflection roller 52, where it is again deflected by approximately 180° and is guided to the material web outlet 50. The endless material web 2 leaves the splice arrangement 1 at the material web outlet 50.

The storage carriage 48 is in its second end position. The two preparation devices 23, 24 are arranged at a distance from the connecting devices 25, 26. They are located in opposite end regions of the guide 28. The table device 27 is arranged at a distance from the preparation devices 23, 24 and the connecting devices 25, 26.

The cutting and connecting device 19 is in its inactive state.

In this state, the finite second material web 6 is only fed through the cutting and connecting device 19, whereas the finite first material web 3 is held in a waiting position by the cutting and connecting device 19 or the first transport roller 29, so that it can be finite second web of material 6 to form the endless first web of material 2 can be connected. The first preparation facility 23 and the table device 27 are initially arranged at a distance from one another for the passage of the finite first material web 3 and assume a material web insertion position, so that the finite first material web 3 can then be fed through between them. The finite first web of material 3 is then guided around the first transport roller 29 and aligned accordingly. The table device 27 is arranged at a distance from the connecting devices 25, 26. The finite first material web 3 is deflected by the first feed roller 18 .

Due to the continuous unrolling of the finite second web of material 6, the second roll of material 7 comes to an end after a certain unwinding time, so that the finite first web of material 3 has to be connected to the finite second web of material 6 via the cutting and connecting device 19 to provide the endless web of material 2.

For this purpose, the table device 27 is moved to the first preparation device 23 along the guide 28 ( figure 2 ). When the first preparation device 23 and the table device 27 touch each other, the threaded finite first material web 3 is held clamped between the first preparation device 23 and the table device 27 . In particular, the finite first material web 3 is held between the first transport roller 29 and the first holding element 75, with the latter being deformed. The table device 27 and the first preparation device 23 assume their first holding position.

Corresponding figure 2 the finite first web of material 3 is then cut off by means of the first cutting knife 31 or in particular by hand in a transverse direction of the finite first web of material 3 . At the new, resulting beginning of the web 66 of the finite first web 3 is of the first preparation device 23 or, in particular, the first adhesive tape 41 is applied by hand. The first adhesive tape 41 preferably extends over the entire width of the finite first web of material 3. The control device 58 controls the first preparation device 23 and/or the table device 27 accordingly via the first or eighth signal connection 59, 68.

The first preparation device 23 and the table device 27 are then coupled to one another via the first coupling unit, with the first material web 3 being held in a clamped manner between the first preparation device 23 and the table device 27 . In particular, the first coupling bar 54 engages in a locking manner on the first opposite coupling part 56, with the first holding element 75 and the first fixing element 76 being deformed by the first transport roller 29, with the finite first material web 3 being fixed to the first transport roller 29. The rotation of the first transport roller 29 is blocked. The first preparation device 23 and the table device 27 assume their second holding position relative to one another.

The control device 58 controls the table device 27, in particular the first coupling bar 54 and a table device drive 69 of the table device 27, and/or the first preparation device 23 accordingly via the first or eighth signal connection 59, 68.

As figure 3 shows, the table device 27 and the first preparation device 23, which are coupled to each other and thus form a first table preparation unit, are then displaced together along the guide 28 in the direction of the second preparation device 24 and the first connecting device 25, respectively. When moving the first table preparation unit to the first connecting device 25, its driving force is greater than the material web tension then prevailing in the finite first material web 3. A first unwind braking force is applied to the finite first material web 3 or the first material roll 4 via a first unwind braking unit 70 of the first unwinding device 5, which is dependent on the diameter and is between 10 N and 300 N. When the first connecting device 25 is approached, the first table preparation unit is gently accelerated.

The first table preparation unit is smoothly decelerated in front of the first link 25 according to this embodiment, and finally stopped adjacent to the first link 25 smoothly.

Then the first preparation device 23 and the table device 27 are moved to the first holding position. The first transport roller 29 can then be rotated again. The first web of material 3 is only held by the first holding element 75 .

The first transport roller 29 is pivoted in particular by shifting the first table preparation unit in such a way that the first adhesive tape 41 comes into a splicing position facing the table device 27 . The distance required for this is known. The table device 27 and the first preparation device 25 receive corresponding control signals from the control device 58 via the signal lines 59 and 68, respectively.

The first preparation device 23 and the table device 27 then take their second holding position again. The first preparation device 23 and the table device 27 are coupled to one another, the first web of material 3 being clamped between the first preparation device 23 and the table device 27 . In particular, the first coupling bar 54 engages in a locking manner on the first opposite coupling part 56, with the first holding element 75 and the first fixing element 76 being deformed by the first transport roller 29, with the finite first material web 3 being fixed to the first transport roller 29. The rotation of the first transport roller 29 is blocked.

The first table preparation unit is then transferred to the second connector 26, such as figure 4 indicates. When the second connecting device 26 is approached, the first table preparation unit is gently accelerated.

The first table preparation unit is smoothly decelerated in front of the second link 26 and finally stopped adjacent to the second link 26 smoothly.

The endless second web of material 6 is pressed against the adhesive end of the first adhesive tape 41 by means of the second pressure roller 44 of the second connecting device 26, with this second pressure roller 44 being guided by a pneumatically operated pivoting unit (not shown) to the first transport roller 29 of the first preparation device 23 , which is attached to the beginning of the web 66 of the finite first web of material 3 and is located at the predetermined position on the first transport roller 29 of the first preparation device 23, pressed. As a result, the endless web of material 2 is joined to the finite first web of material 3. The supply of the finite second web of material 6 to the endless web of material 2 is stopped.

To produce a cut edge, the first table preparation unit is moved in the guide 28 in such a way that a cutting edge of the second cutting knife 43, which is moved by a linear unit (not shown), of the second cutting unit 42 of the second connecting device 26 for the complete separation of the finite second material web 6 from the endless web of material 2 can dip into a recess provided for the second cutting blade 43 of the second cutting unit 42 of the second connecting device 26 in the table device 27 over its entire width.

After the cutting process for complete separation of the endless web of material 2 and the finite second web of material 6, the second cutting blade 43 of the second cutting unit 42 of the second connecting device 26 is moved back to its starting position and then the second pressure roller 44 of the second connecting device 26 is moved back to its starting position. As a result, the endless web of material 2, which is now connected to the finite first web of material 3, is released.

The first preparation device 23 , via whose first transport roller 29 the finite first material web 3 is now being conveyed, remains arranged adjacent to the second connecting device 26 . The control device 58 controls the first preparation device 23, the second connecting device 26 and the table device 27 accordingly via the signal connections 59, 62 and 68, respectively.

By shifting the storage carriage 48 into the first end position, the loops formed by the endless web of material 2 are dissolved, so that the endless web of material 2 continues to leave the splice arrangement 1 without interruption or is conveyed without interruption.

The cutting and connecting device 19 is then in its inactive state. In this state, the finite first material web 3 is only fed through the cutting and connecting device 19, whereas the finite second material web 6 is held in a waiting position by the cutting and connecting device 19, so that it can be moved with the finite first material web 3 to the endless first web of material 2 can be connected.

If the timing of the first splice and the positioning of the first table preparation unit in the splice position are combined, the process can be designed in a timely manner.

Due to the known length of the finite first web of material 3, the splice arrangement 1 recognizes when the first roll of material 4 is coming to an end. Before this occurs, the prepared finite second web of material 6 is connected to the finite first web of material 3 . This is done analogously to the previously explained change to the first material roll 4. Reference is made to this.

When the second table preparation unit is moved to the second connecting device 26, a second unwind braking force can be applied to the finite second material web 6 or the second material roll 7 via a second unwind braking unit 71 of the second unwinding device 8, which is between 10 N and 300 N depending on the diameter. The second unwinding device 8 can be controlled accordingly by the control device 58 via the signal connection 65 .

In the following, with reference to the Figures 7 to 10 the splicing steps after the finite first material web 3 has been threaded in and clamped between the table device 27 and the first preparation device 23 are again explained in detail.

As 7 shows, the table device 27 for splicing the finite first material web 3 to the finite second material web 6 is arranged immediately adjacent to the first preparation device 23 .

The first preparation device 23 and the table device 27 have moved into their first holding position, so that the finite first material web 3 is held between them in a clamped, but still displaceable manner. The first coupling unit is inactive. The first transport roller 29 can be pivoted. The finite first material web 3 is pressed against the first transport roller 29 by the deformed first holding element 76 .

The finite first web of material 3 is then cut off manually in a transverse direction of the finite first web of material 3 with the first coupling unit inactive.

The first adhesive tape 41 is attached by hand to the newly created web beginning 66 of the finite first material web 3 . The first adhesive tape 41 extends over the entire width of the finite first web of material 3. It is advantageously a two-sided adhesive tape 41.

The first preparation device 23 and the table device 27 are then coupled to one another via the then active first coupling unit, so that they assume their second holding position relative to one another. The first coupling bar 54 and the first coupling counterpart 56 are closely connected to each other. The finite first material web 3 is then fixed in relation to the first preparation device 23 and the table device 27 . In the process, the first fixing element 76 is also deformed. The first transport roller 29 is now held non-rotatably.

The table device 27 and the first preparation device 23 are then moved together in their second holding position along the guide 28 in the direction of the second preparation device 24 or the first connecting device 25, as a result of which the finite first material web 3 is tensioned. A displaced position is in 8 shown.

Like the velocity functions in 7 and 8th show, the first table preparation unit is gently accelerated via a start acceleration ramp 77 until it reaches a maximum speed. The maximum speed is maintained over a certain travel distance.

When the first table preparation unit is moved to the first connecting device 25 , its driving force is greater than the material tension then prevailing in the finite first material web 3 . A first unwinding brake unit 70 of the first unwinding device 5 applies a first unwinding braking force to the finite first material web 3 or the first material roll 4 , which is dependent on the diameter and is between 10 N and 300 N.

The first table preparation unit is gently decelerated in front of the first connector 25 via a first ramp deceleration function 78 and finally gently stopped. The table device 27 and the first preparation device 23 then become in the stopped state of the table device 27 and the first preparation device 23 are brought into their first holding position, the first coupling unit becoming ineffective. The first coupling bar 54 and the first coupling counterpart 56 are in an unlocked state. The finite first web of material 3 is only held by the first holding element 75 and the first fixing element 76 becomes virtually ineffective. The first transport roller 29 is thus released for rotation again.

The table device 27 and the first preparation device 23 are then moved further in the direction of the first connecting device 25 in their first holding position ( 9 ). The table device 27 and the first preparation device 23 are gently accelerated via an intermediate acceleration ramp 79 , the finite first material web 3 being moved in relation to the table device 27 . In particular, the first adhesive tape 41 is repositioned as a result of the displacement of the first preparation device 23 and the table device 27, so that it reaches the first transport roller 29 and its splicing position. In the splice position, the first adhesive tape 41 faces the first fixing element 76, as it were. In addition, the finite first web of material 3 is centered.

The table device 27 and the first preparation device 23 are then decelerated via a deceleration ramp 80 . The table device 27 and the first preparation device 23 are brought into their second holding position. The first coupling bar 54 and the first coupling counterpart 56 are connected to one another in a locking manner. The finite first material web 3 is then fixed in relation to the first preparation device 23 and the table device 27 . In the process, the first fixing element 76 is also deformed. The first transport roller 29 is now held non-rotatably. The finite first web of material 3 is evenly stretched over its entire width.

Then the table device 27 and the first preparation device 23 are moved in the second holding position to the second connecting device 26 ( 10 ). There is a gentle acceleration and deceleration again. In the second connecting device 26, the finite first material web 3 is spliced onto the endless material web 2.

In contrast to the Figures 7 to 10 takes place in the embodiment according to 11 a start-up of the second connecting device 26 without an intermediate stop.

Claims (8)

1. Splice arrangement for splicing material webs (3, 6),

   a) with a first unwinding unit (5) for unwinding a finite first material web (3) from a first material roll (4),

   b) with a second unwinding unit (8) for unwinding a finite second material web (6) from a second material roll (7),

   c) with a connection device (19) for connecting the finite first material web (3) and the finite second material web (6) with each other to form an endless material web (2), wherein the connection device (19) comprises

   i) a guide (28),

   ii) a first preparation apparatus (23), comprising

   - a first transport roller (29),

   iii) a second preparation apparatus (24), comprising

   - a second transport roller (32),

   iv) a first connection apparatus (25) for connecting the finite material webs (3, 6) to form the endless material web (2), wherein the first connection apparatus (25) comprises

   - a first cutting unit (37) for cross-cutting the finite first material web (3) prior to connection with the finite second material web (6),

   v) a second connection apparatus (26) for connecting the finite material webs (3, 6) to form the endless material web (2), wherein the second connection apparatus (26) comprises

   - a second cutting unit (42) for cross-cutting the finite second material web (6) prior to connection with the finite first material web (3), and

   vi) a table unit (27) displaceable along the guide (28) for cooperating with the preparation apparatus (23, 24) and the connection apparatus (25, 26),

   - wherein the table unit (27) and the first preparation apparatus (23), in their position adjacent to each other, are displaceable relative to each other between a material web supply position and at least one holding position, spaced from each other, for holding the finite first material web (3) on the first transport roller (29), and

   d) with an actuation apparatus for actuating the connecting apparatus (25, 26) and the table unit (27) for splicing the finite material webs (3, 6),

   e) wherein the table unit (27) and the first preparation apparatus (23) are capable, in a first holding position, of holding the finite first material web (3), but also allow a displacement of the same in relation to the table unit (27) and/or the first preparation apparatus (23), wherein the first transport roller (29) is rotatable in the first holding position of the table unit (27) and the first preparation apparatus (23),

   f) wherein the table unit (27) and the first preparation apparatus (23) are capable, in a second holding position, of preventing a displacement of the finite first material web (3) in relation to the table unit (27) and/or the first preparation apparatus (23),

   g) wherein the table unit (27) comprises at least one first holding element (75), effective in at least the first holding position, for holding the finite first material web (3) on the first transport roller (29),

   h) wherein the table unit (27) and the first preparation apparatus (23) are coupled with each other in the second holding position by means of a first coupling unit (54, 56), wherein the table unit (27) comprises at least one first fixing element (76), effective in the second holding position, for fixing the finite first material web (3) in relation to the table unit (27) and/or the first preparation apparatus (23),
   characterized in that

   i) the table unit (27) and the first preparation apparatus (23) are capable of taking up the first holding position prior to reaching the first and/or second connection apparatus (25, 26),

   j) the table unit (27) and the first preparation apparatus (23), in their first holding position are capable of displacing further towards the first and/or second connection apparatus (25, 26) for bringing a first adhesive tape (41) affixed to the finite first material web (3) into a splicing position for connection with the finite second material web (6),

   k) wherein the first transport roller (29) automatically pivots for bringing the first adhesive tape (41) into the splicing position.
2. Splice arrangement according to claim 1, characterized in that a rotation of the first transport roller (29) is blocked in the second holding position of the table unit (27) and the first preparation apparatus (23).
3. Splice arrangement according to claim 1 or 2, characterized in that the table unit (27) and the first preparation apparatus (23), in their second holding position taking with them the fixed finite first material web (3), are capable of displacing towards the first and/or second connection apparatus (25, 26) for splicing the finite first material web (3) to the finite second material web (6), wherein preferably the table unit (27) and the first preparation apparatus (23) are capable of gently accelerating to tighten the finite first material web (3).
4. Splice arrangement according to any one of the preceding claims, characterized in that the table unit (27) and the first preparation apparatus (23) are capable of taking up the first holding position prior to reaching the first and/or second connection apparatus (25, 26) during at least one stop.
5. Splice arrangement according to claim 3, characterized in that the table unit (27) and the first preparation apparatus (23) are capable of taking up the first holding position without stopping or slowing.
6. Splice arrangement according to one of the preceding claims, characterized in that a drive force of the table unit (27) and the first preparation apparatus (23) for unwinding the finite first material web (3) is greater than a material web tension of the finite first material web (3) upon displacing the same towards the first and/or second connection apparatus (25, 26).
7. Splice arrangement according to one of the previous claims, characterized in that the first transport roller (29) pivots by displacement of a first table preparation unit in such a way that the first adhesive tape (41) comes into a splicing position facing the table device (27).
8. Method for splicing material webs (3, 6), comprising the steps of

   - unwinding a finite first material web (3) from a first material roll (4) by means of a first unwinding unit (5),

   - unwinding a finite second material web (6) from a second material roll (7) by means of a second unwinding unit (8),

   - connecting the finite first material web (3) and the finite second material web (6) with each other to form an endless material web (2) by means of a connection device (19), wherein the connection device (19) comprises

   -- a guide (28),

   -- a first preparation apparatus (23), comprising
   --- a first transport roller (29),

   -- a second preparation apparatus (24), comprising
   --- a second transport roller (32),

   -- a first connection apparatus (25) for connecting the finite material webs (3, 6) with the endless material web (2), wherein the first connection apparatus (25) comprises
   --- a first cutting unit (37) for cross-cutting the finite first material web (3) prior to connection with the finite second material web (6),

   -- a second connection apparatus (26) for connecting the finite material webs (3, 6) with the endless material web (2), wherein the second connection apparatus (26) comprises
   --- a second cutting unit (42) for cross-cutting the finite second material web (6) prior to connection with the finite first material web (3), and

   -- a table unit (27), displaceable along the guide (28) for cooperation with the preparation apparatus (23, 24) and the connection apparatus (25, 26),
   --- wherein the table unit (27) and the first preparation apparatus (23), in their position adjacent to each other, are displaceable relative to each other between a material web supply position and at least one holding position, spaced from each other, for holding the finite first material web (3) on the first transport roller (29), and

   - actuating the connection apparatus (25, 26) and the table unit (27) by means of an actuation apparatus (58) for splicing the finite material webs (3, 6),

   - wherein the table unit (27) and the first preparation apparatus (23) are capable, in a first holding position, of holding the finite first material web (3), but also allow a displacement of the same in relation to the table unit (27) and/or the first preparation apparatus (23), wherein the first transport roller (29) is rotatable in the first holding position of the table unit (27) and the first preparation apparatus (23),

   - wherein the table unit (27) and the first preparation apparatus (23) are capable, in a second holding position, of preventing a displacement of the finite first material web (3) in relation to the table unit (27) and/or the first preparation apparatus (23),

   - wherein the table unit (27) comprises at least one first holding element (75), effective in at least the first holding position, for holding the finite first material web (3) on the first transport roller (29),

   - wherein the table unit (27) and the first preparation apparatus (23) are coupled with each other in the second holding position by means of a first coupling unit (54, 56), wherein the table unit (27) comprises at least one first fixing element (76), effective in the second holding position, for fixing the finite first material web (3) in relation to the table unit (27) and/or the first preparation apparatus (23),

   - characterized in that the table unit (27) and the first preparation apparatus (23) take up the first holding position prior to reaching the first and/or second connection apparatus (25, 26),

   - wherein the table unit (27) and the first preparation apparatus (23), in their first holding position further displace towards the first and/or second connection apparatus (25, 26) for bringing a first adhesive tape (41) affixed to the finite first material web (3) into a splicing position for connection with the finite second material web (6),

   - wherein the first transport roller (29) automatically pivots for bringing the first adhesive tape (41) into the splicing position.

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