EP4547587A1 - Vorrichtung und verfahren zum verbinden zweier materialstreifen - Google Patents
Vorrichtung und verfahren zum verbinden zweier materialstreifenInfo
- Publication number
- EP4547587A1 EP4547587A1 EP23748720.2A EP23748720A EP4547587A1 EP 4547587 A1 EP4547587 A1 EP 4547587A1 EP 23748720 A EP23748720 A EP 23748720A EP 4547587 A1 EP4547587 A1 EP 4547587A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- stamp
- strips
- material strip
- clamping finger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
- B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
- B65H19/1852—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place at a distance from the replacement roll
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H21/00—Apparatus for splicing webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/461—Processing webs in splicing process
- B65H2301/4615—Processing webs in splicing process after splicing
- B65H2301/4617—Processing webs in splicing process after splicing cutting webs in splicing process
- B65H2301/46176—Processing webs in splicing process after splicing cutting webs in splicing process cutting both spliced webs simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/462—Form of splice
- B65H2301/4622—Abutting article or web portions, i.e. edge to edge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
- B65H2301/4631—Adhesive tape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/46—Splicing
- B65H2301/464—Splicing effecting splice
- B65H2301/46412—Splicing effecting splice by element moving in a direction perpendicular to the running direction of the web
Definitions
- the innovation presented here relates to the technical field of applying (placing, gluing) sections of a material strip (material web) onto individual paper or cardboard blanks (blanks) or another material web, in particular blanks for packaging.
- the strip of material for example silicone paper
- a respective process for example a production process for producing packaging material
- the strip of material is pulled off, for example, from a roll or the like in order to be fed to the respective process.
- the material on the roll runs out, it is necessary to switch to a new roll.
- Devices for connecting two strips of material are basically known. From DE 697 07 920 T2 a device for continuously gluing tapes is known. It is used to glue together a tape that is running and a tape that is kept on standby.
- the elements used for bonding are located in two modules that can be moved in opposite directions. Each module has movable adhesive carriers and a knife for cutting the tapes. The tapes are cut in an intermediate position, then the modules are moved to their final positions to apply the adhesive strips to the ends of the tapes and bond them. The modules are then brought back into the intermediate position and the offcuts are removed.
- One object of the innovation presented here is to specify a further embodiment of a device for connecting two strips of material and also to specify a method for operating such a device, and therefore a method for connecting two strips of material.
- this object is achieved according to the invention by means of a device which is referred to below in accordance with the usual technical terminology as a splicer and has the features of claim 1.
- the device - the splicer - is intended and set up for connecting two strips of material, which are referred to below as the first or old strip of material and as the second or new strip of material.
- the new strip of material is connected to the old strip of material.
- the splicer includes a support surface over which the old strip of material runs.
- the support surface includes an adhesive area.
- the two strips of material are connected in the adhesive area.
- the splicer further comprises a clamping or holding finger that can be lowered onto the support surface on both sides of the adhesive area - namely in the direction of flow of the old material strip on both sides of the adhesive area. To distinguish between these two clamping or holding fingers, they are referred to as the roller-side clamping finger and the drain-side clamping finger.
- the old strip of material runs under both clamping fingers that are then raised, namely between the support surface and the clamping fingers.
- the splicer will not be activated So there are no automatic measures to connect a new strip of material to the old strip of material, and the old strip of material runs through the splicer towards the respective process.
- the new material strip is guided under the roller-side clamping finger and over the outlet-side clamping finger. This guidance of the new strip of material, also referred to below as threading, can be carried out by an operator.
- the new material strip is then threaded manually.
- a threaded new strip of material is a prerequisite for connecting the new strip of material to the old strip of material.
- the old strip of material runs under the threaded new strip of material.
- the two strips of material are located in the adhesive area in the same or at least essentially the same axial orientation, that is to say with parallel or at least essentially parallel edges, in parallel or at least essentially parallel planes.
- the two strips of material are also located directly or at least essentially directly above one another in their respective levels in the adhesive area, so that when the new strip of material located in the upper level is lowered onto the old strip of material located in the lower level, the new strip of material covers the old strip of material or at least essentially covers.
- the flow of the old strip of material is stopped (the old strip of material is therefore stationary) and both strips of material are fixed by means of the clamping fingers.
- the old material strip is fixed using both clamping fingers and the new material strip is fixed using the roller-side clamping finger.
- the splicer To connect the new strip of material to the old strip of material, the splicer includes a first and a second stamp device and these each include a stamp that can be lowered onto the support surface. To distinguish these two stamps, they are referred to as the first stamp and the second stamp.
- the first stamp When operating the splicer and connecting the two material strips, the first stamp, which is in a position above the material strip and above the adhesive area, can be lowered onto the fixed material strips and both material strips can be severed in the adhesive area by means of a blade on the first stamp.
- operating the splicer involves connecting the two Material strips are first lowered onto the fixed material strips by the first stamp located in a position above the material strips and above the adhesive area and both material strips are severed in the adhesive area using the blade on the first stamp.
- the separation of the two strips of material using the blade on the first punch results in the separating parts being butt-to-butt. In this position, the trailing end of the old material strip is later connected to the new material strip.
- the resulting connection of the two strips of material is a butt connection.
- the second stamp can be moved into the position previously occupied by the first stamp over the strip of material and over the adhesive area and is moved into this position after the two strips of material have been severed. Then, when operating the splicer and connecting the two material strips, the second stamp can be lowered onto the severed material strips and by means of the second stamp an adhesive strip guided along the underside of the second stamp can first be pressed onto the sections of the material strips located in the adhesive area and by means of the second stamp Finally, when the second stamp is lowered further, the adhesive strip can be severed on both sides of the material strip using two blades on the second stamp.
- the second stamp When operating the splicer, in order to connect the two material strips, after the two material strips have been severed using the first stamp, the second stamp is moved into the position previously occupied by the first stamp above the adhesive area and the second stamp positioned in this way is placed on the severed material strips lowered and by means of the second stamp, an adhesive strip guided along the underside of the second stamp is first pressed onto the sections of the material strips located in the adhesive area and by means of the second stamp, the adhesive strip is finally pressed onto both sides of the material strip by means of two blades on the second stamp when the second stamp is further lowered Stamp severed.
- the new material strip is connected to the old material strip, namely by means of the adhesive strip, and the section of the adhesive strip connecting the two material strips is cut off laterally, so that the cut edges of the adhesive strip are aligned or at least substantially aligned with the edge lines of the material strips.
- the main advantage of the splicer proposed here is that the process of connecting the two material strips can be carried out automatically.
- Another advantage is that the two material strips are connected butt-to-butt, i.e. a butt-to-butt connection is created, so that when the material strip is used further, the adhesive point is on the way to further units, for example through a placement head. and cannot have any disruptive influence on a particular product. For example, hooking or tilting of the adhesive point is avoided.
- the old strip of material runs (at least initially) under both clamping fingers and below the threaded new strip of material. Even when it is stopped later, the old material strip is located below both clamping fingers, i.e. between the support surface and the clamping fingers.
- the new material strip is guided under the roller-side clamping finger and over the outlet-side clamping finger.
- the flow of the old strip of material is stopped and both strips of material are fixed by means of the clamping fingers; the old material strip using both clamping fingers and the new material strip using the roller-side clamping finger.
- the old material strip using both clamping fingers are lowered onto the support surface.
- the new strip of material is pushed down (at least in sections) from its level above the old strip of material and pressed onto the old strip of material.
- the first stamp which is in a position above the material strip and above the adhesive area, is then lowered onto the fixed material strips and both material strips are severed in the adhesive area using a blade on the first stamp.
- the second stamp After cutting through the two material strips, the second stamp is moved into the position previously occupied by the first stamp over the material strip and over the adhesive area. To connect the two material strips, the second stamp, now positioned above the adhesive area and there over the material strip, is lowered onto the severed material strips and, using the second stamp, an adhesive strip guided along the underside of the second stamp is first pressed onto the sections of the material strips located in the adhesive area and finally by means of the second stamp, when the second stamp is lowered further, the adhesive strips are cut through on both sides of the material strips using two blades on the second stamp.
- the splicer comprises three fundamentally independent functional units, namely means for fixing the two material strips on the support surface, then means for cutting the material strips fixed on the support surface and finally means for pressing an adhesive strip onto the severed material strips, which optionally also also cause the adhesive strip to be cut off to the side.
- the clamping fingers act as a means of fixing the two strips of material on the support surface.
- the clamping fingers and the or each means for their intended movement are a fixation functional unit.
- the first stamp and the blade there act as a means for cutting through the strips of material fixed on the support surface.
- the first stamp and its blade as well as the or each means for the intended movement of the first stamp are a cutting functional unit.
- the second stamp or the second stamp and its blades as well as the or each means for the intended movement of the second stamp are an adhesive functional unit.
- all of these functional units - fixing functional unit, cutting functional unit and gluing functional unit - are independent of one another. This means that in the case of a splicer, each of these functional units can be designed as described here and below and can function as described here and below when connecting two material strips, while one of the other functional units or both other functional units can be designed differently than described here and below and accordingly differently function.
- a splicer in the embodiment according to the invention necessarily only comprises exactly one of the functional units as described here and below, optionally comprises exactly two of the functional units as described here and below and particularly preferably all three functional units as described here and below described includes.
- the method can also be developed using individual or multiple method features that relate to method steps carried out or executable by the splicer or by means of the splicer.
- the splicer can be developed using physical means that are intended and/or set up/prepared to carry out the method steps provided within the scope of the method.
- a hold-down device that can be lowered towards the support surface.
- the hold-down device is a finger-like device similar to the clamping fingers and is parallel to the clamping fingers aligned.
- the hold-down device is located between the adhesive area and the clamping finger on the drain side when viewed in the direction of drainage of the old strip of material.
- the hold-down device serves to guide the new strip of material even better over the adhesive area. If such a hold-down device is present, the new material strip is/is threaded/guided along under the roller-side clamping finger, between the hold-down device and the outlet-side clamping finger and above the outlet-side clamping finger.
- the new strip of material runs under the hold-down device and over the clamping finger on the drain side.
- the threaded new strip of material is guided over the adhesive area parallel or at least essentially parallel to the old strip of material located in a deeper level.
- the new material strip is essentially pressed down onto the section of the old material strip there in the entire area between the roller-side clamping finger and the hold-down device.
- the hold-down device can be lowered together with the outlet-side clamping finger and is lowered together with the outlet-side clamping finger when the outlet-side clamping finger is lowered.
- the hold-down device is connected to the clamping finger on the outlet side, so that this and the hold-down device can be lowered together and are lowered together during operation of the splicer.
- the splicer it has a pulling device and the free end of the new strip of material guided under the roller-side clamping finger and over the drain-side clamping finger can be fixed to the pulling device.
- the end of the new material strip which is guided under the roller-side clamping finger and over the drain-side clamping finger, is pulled out of the area between the two clamping fingers after the two material strips (and thus also the new material strip) have been severed in the adhesive area.
- the removal means that only the ends of the material strips that are fixed by means of the clamping fingers are in the adhesive area and that the adhesive strip can therefore be pressed onto the ends of the new material strip and the old material strip that are to be connected to one another.
- the pulling device is movable along a guide, in particular a linear guide.
- the pulling device is preferably spring-loaded and movable along the guide or linear guide.
- the guide in particular in the form of a linear guide, is attached to the outer surface of the splicer. This means that the guide or linear guide extends along the outer surface of a housing or housing part of the splicer or along another surface of the splicer.
- the puller With a spring-loaded movable puller, the free end of the new material strip is fixed to the puller against the spring force of a corresponding spring element and the new material strip is tensioned between the roller-side clamping finger and the puller due to the effect of the spring force.
- the puller pulls it out of the area between the two clamping fingers under the action of the spring force.
- it has a clamping device in the manner of a crocodile clip or the like.
- a side surface of the outlet-side clamping finger namely the side surface facing the roller-side clamping finger, is inclined in the outlet direction. This inclination of the side surface ensures a trouble-free removal of the severed end of the new strip of material after cutting through the two strips of material using the blade on the first stamp. This is especially true when the severed end of the new strip of material is pulled off using a spring-loaded pulling device.
- the stamp devices which include the stamps for cutting through the material webs and for pressing on the adhesive strip, are movable together, in particular along a corresponding guide, for example along a linear guide.
- the joint mobility of both stamp devices means that only one drive is required, making the splicer structurally simpler.
- two linear drives arranged axially one behind the other in particular two pneumatic cylinders arranged axially one behind the other and functioning as linear drives, act as a drive for the joint mobility of both stamp devices.
- Two linear drives arranged axially one behind the other have the advantage that no sensors are necessary to record the position of the stamp devices during their movement.
- One aspect of the innovation proposed here is also a control device for controlling the splicer and for controlling the drives included in the splicer, the control device operating according to the method as described here and below and for this purpose comprising means for carrying out the method.
- the control device acts as a means for carrying out the method for operating the splicer and possible embodiments of the method.
- the method for operating the splicer and possible embodiments is or are implemented for automatic execution, preferably in the form of a control program (computer program).
- a further aspect of the innovation proposed here is also a computer program with program code instructions that can be executed by a computer, in particular a control device Implementation of the method proposed here and possibly individual embodiments as well as a storage medium with such a control program (computer program), i.e.
- control device in whose memory as a means for carrying out the method and its embodiments such a control program (computer program ) loadable and executable by means of the control device and is loaded into this memory at least when the splicer is being operated and is executed by means of the control device when the splicer is being operated.
- process steps or process step sequences are described below ("moved”, “lowered”, “cut”, “pressed”, etc.), this refers to actions that are carried out automatically when the respective process step is carried out under control or due to the functionality of the control device , in particular due to the control program or under the control of the control program.
- any reference to an automatic process means that it takes place under control or due to the functionality of the control device, in particular due to the control program or under the control of the control program.
- control program and computer program can also be implemented entirely or partially in the form of firmware or hardware. It is clear to the person skilled in the art that instead of implementing a method in software, it is always possible to implement it entirely or partially in firmware or in firmware and software or in firmware and hardware. Therefore, it should apply to the description presented here that the terms control program and computer program also include other implementation options, namely in particular an implementation at least partially in firmware and/or at least partially in firmware and software or at least partially in firmware and hardware.
- FIG. 4 shows an embodiment of a device (splicer) intended for connecting two strips of material
- Figure 5 is a schematically simplified representation of the material strips to be connected and the adhesive strip provided for connecting them
- Figure 6 is a structogram with a schematically simplified representation of the process steps that occur when operating the splicer when connecting two strips of material.
- Figure 1 The representations in Figure 1, Figure 2, Figure 3 and Figure 4 show an embodiment of the device 10 proposed here in different views, namely isometric ric (Figure 1, Figure 2) as well as in a first side view ( Figure 3) and a second side view ( Figure 4).
- the device 10 is referred to below as a splicer 10 according to its function.
- the term “splicer” is common in technical terminology. A German equivalent of this term is, for example, “glue press”.
- the splicer 10 includes various movable components, which will be considered below before the description turns to the function of the splicer 10 below.
- Each movable component is moved by means of at least one linear drive.
- linear drives In particular - but not exclusively - hydraulic cylinders, pneumatic cylinders, linear motors or threaded rod drives (generally: feed assemblies) can be considered as linear drives.
- the splicer 10 comprises two stamps 20, 22, which are referred to as the first or inner stamp 20 and as the second or outer stamp 22 - for the purpose of distinction only.
- the two stamps 20, 22 can be lowered and raised by means of a drive 24, 26, namely a drive 24, 26 in the form of a linear drive, i.e. they can be moved translationally in the vertical direction.
- the drives 24, 26 are shown in a very simplified schematic diagram only as cuboid units and with block arrows in relation to the possible directions of movement. Suitable drives 24, 26 are known per se. This also applies to all other drives mentioned below.
- the stamps 20, 22 - each stamp 20, 22 individually - can be lowered in the direction of a support surface 28 encompassed by the splicer 10 or assigned to the splicer 10 (can be lowered in the direction of the support surface 28) and can be raised in the opposite direction (can be in be raised in the opposite direction).
- the lowering towards the support surface 28 takes place, for example, by means of a pre-stroke Linear drive and lifting in the opposite direction accordingly by means of a return stroke of the linear drive.
- stamp 20, 22, together with the linear drive 24, 26 provided for its vertical mobility forms a stamp device.
- the two stamp devices are referred to - just to distinguish them - as the first or inner stamp device and as the second or outer stamp device.
- the two stamp devices are also movable - individually or together - in the horizontal direction (namely transverse to the direction of movement of the stamps 20, 22).
- the description continues on the basis of the exemplary embodiment shown.
- the splicer 10 comprises a guide 30 and a carrier 32 movable along the guide 30, the two stamp devices being mounted on the carrier 32 and correspondingly being moved in the horizontal direction when the carrier 32 moves horizontally.
- a plate that moves along the guide 30 acts as a carrier 32.
- a drive 34 in the form of a linear drive is provided.
- the drive 34 comprises at least two individual linear drives arranged one behind the other in the axial direction (linear drives arranged one after the other in the axial direction).
- Such a drive 34 preferably comprises exactly two linear drives, in particular pneumatic cylinders (or hydraulic cylinders).
- at least three defined positions can be approached in a targeted manner by maximum extension or retraction (forward or return stroke) of the linear drives without any other position sensors; three defined positions with the same stroke of the two linear drives, four defined positions with different strokes.
- the splicer 10 further comprises two clamping fingers 40, 42. These can be moved up and down, i.e. in the vertical direction, by means of a drive 41, 43 (clamping finger drive 41, 43) in the form of a linear drive or alternatively by means of a common drive in the form of a linear drive , translationally mobile. Ie the clamping fingers 40, 42 can be lowered to the level of the support surface 28 or into one Position above the level of the support surface 28 and at a distance from the support surface 28 can be raised. The clamping fingers 40, 42 form a clamping finger device with their drive 41, 43 or their common drive. The raising into a position above the level of the support surface 28 takes place, for example, by means of a forward stroke of the linear drive and the lowering to the level of the support surface 28 accordingly by means of a return stroke of the linear drive.
- a strip of material 50 runs through the splicer 10. This is pulled off in a generally known manner from a roll not shown in the figures.
- the strip of material 50 is consumed over time and before the end of the strip of material 50 runs out of its roll, a connection with a new strip of material 52 running from another roll, also not shown (new roll), is required.
- the material strips 50, 52 are, for example, silicone paper.
- the joining of two material strips 50, 52 is also referred to as splicing in technical terminology.
- the device 10 proposed here - the splicer 10 - creates such a connection during operation and is accordingly referred to as splicer 10.
- the result of connecting two material strips 50, 52 is a continuous material strip 50, 52, which at least temporarily includes both material strips 50, 52, namely a section of the old material strip 50 and an adjoining section of the new material strip 52.
- an old strip of material 50 and a new strip of material 52 are sometimes spoken of.
- the lower material strip 50 is the old material strip 50, i.e. the currently expiring material strip 50.
- the upper material strip 52 is the new material strip 52, i.e. the material strip 52 that has not yet been used in the respective process.
- this term refers to the description of the situation during exactly one splicing process.
- the new material strip 52 becomes the currently expiring material strip and if this comes to an end and a new splicing is therefore required, this currently expiring material strip is the old material strip to which a new material strip is connected when the new splicing occurs.
- the use of the reference numbers in the context of the description presented here therefore refers to exactly one splicing process.
- the strip of material running is a continuous strip of material and, depending on the point in time at which it is viewed, it can be the old strip of material 50 (before the splicing process) or the new strip of material 52 (after the splicing process). .
- the expiring material strip (after the splicing process) even includes material from the old material strip 50 as well as material from the new material strip 52. This is taken into account in the description presented here by using both reference numbers (50, 52) when the strip of material 50, 52 used in the respective process is referred to and it does not matter whether it is the old or the new strip of material 50, 52.
- each stamp 20, 22 is movable in the vertical direction
- the stamp devices are movable with one another in the horizontal direction (along the z-axis of the coordinate system shown in Figure 1) and the clamping fingers 40, 42 are also movable in the vertical direction are.
- these directions refer to the embodiment shown and its orientation shown there.
- the splicer 10 does not necessarily have to be installed in the orientation shown.
- the splicer 10 can, for example, be rotated about the y-axis shown in FIG. For example, rotated by 90°, so that the movement of the stamps 20, 22 described above as vertical actually takes place along the horizontal.
- the stamp devices then move together in a vertical direction.
- a new material strip 52 is attached to the currently used material strip 50 (connection process, splicing) - usually glued - and in the process the new material strip 52 replaces the previously used material strip 50.
- the new material strip 52 then becomes the currently used material strip and when this is closed When the end comes to an end, splicing occurs again and so on. Splicing is therefore the connection of a currently used material strip 50 (a currently expiring material strip 50) with a new material strip 52, which after splicing becomes the currently used (expiring) material strip.
- FIG. 5 shows this in a schematically simplified manner.
- the material strips 50, 52 and a section of the adhesive strip 54 intended to connect them are shown transversely to the surface of the respective strips 50, 52, 54, so that they only appear as lines.
- the conditions shown in Figure 4 correspond approximately to the course of the strips 50, 52, 54, as is also shown in the illustrations in Figure 1 and Figure 3 - but there with the details of the splicer 10.
- connection process a directional distinction is useful, namely a distinction between an incoming or roller-side direction 56 on the one hand and an outgoing direction 58 on the other.
- the material strip 50 arrives from the direction in which its roll (coil, drum) is located (roller-side direction 56) and runs in the opposite direction (outflow-side direction 58).
- the material strip 50 runs, for example, in the direction of a placement head or the like for placing, for example, sections of the material strip 50 onto blanks provided for this purpose.
- junction 60 the location at which the two material strips 50, 52 are connected by means of the adhesive strip 54 is also added. This location is referred to as Junction 60. Upstream of the connection point 60, the material strip 50 arrives from the roll-side direction 56. Downstream of the connection point 60, the material strip 50 runs in the downstream direction 58.
- connection of a running strip of material 50 with a new strip of material 52 is done - roughly speaking - by placing the beginning of the new strip of material 52, i.e. the beginning of the strip of material 52 then lying on top, on the old strip of material 50 that is running off and lying at the bottom during splicing and the two material strips 50, 52 are connected to one another in the area of the beginning of the material strip 52 lying on top.
- the connection is carried out by means of an adhesive strip 54, which overlaps, on the one hand, the beginning of the material strip 52 lying on top and, on the other hand, a part of the material strip 50 lying below, transversely or at least substantially transversely to the direction of travel of the two material strips 50, 52.
- the material strip 50 lying below is severed at the connection point 60 or upstream of the connection point 60.
- a continuous material strip 50, 52 results, which comprises the old material strip 50 downstream of the connection point 60 and the new material strip 52 upstream of the connection point 60.
- the material strip 50, 52 runs over the support surface 28 and a new material strip 52 is connected to an old material strip 50 on the support surface 28.
- the connection takes place in an adhesive area 62 enclosed by the support surface 28.
- the clamping fingers 40, 42 are located along the support surface 28 on both sides of the adhesive area 62. They are preferably oriented transversely or at least substantially transversely to the direction of the respective material strip 50 (at least oriented so that they can cover a strip of material 50, 52 in its entire width or at least essentially in its entire width) and serve, among other things, to fix the strip of material 50 running off during splicing.
- the two clamping fingers 40, 42 are referred to as the roller-side clamping finger 40 and the outlet-side clamping finger 42 according to their position along the running material strip 50.
- the roller-side clamping finger 40 is located in front of (upstream) the adhesive area 62 in relation to the direction of flow of the material strips 50, 52 and the clamping finger 42 in the outlet side is located behind (downstream) of the adhesive area 62 in relation to the same direction of flow.
- there is a hold-down device 64 In the embodiment shown on the side of the drain-side clamping finger 42 (on the side of the clamping finger 42 and along the clamping finger 42; on the side pointing towards the roller-side clamping finger 40) there is a hold-down device 64.
- clamping fingers 40, 42 are referred to as clamping fingers 40, 42 because they have an elongated ( finger-like) shape and protrude over the support surface 28 and thus over the area - similar to the boom of a crane over a construction site - in which the material strips 50, 52 run.
- the clamping fingers 40, 42 or at least an underside of the clamping fingers 40, 42 are or is parallel to the surface of the support surface 28.
- the two stamps 20, 22 are raised and the two clamping fingers 40, 42 are also raised , so that the running strip of material 50 passes under the clamping fingers 40, 42.
- a new material strip 52 is guided over the running material strip 50 (old material strip 50) and parallel to the old material strip 50 along the support surface 28.
- the new strip of material 52 is guided from its roll under the clamping finger 40 on the roll side.
- the material strip 52 is guided under the hold-down device 64 on the outlet-side clamping finger 42 and over the outlet-side clamping finger 42.
- the free end of the new material strip 52 is fixed to the splicer 10. This is called threaded new strip of material 52 designated. The fixation on the splicer 10 is described below.
- the raised stamps 20, 22, the likewise raised clamping fingers 40, 42, the material strip 50 running under the clamping fingers 40, 42 and the threaded new material strip 52 formed the initial state for splicing.
- the running strip of material 50 is stopped.
- the rotation of the drum is stopped.
- a certain amount of the running material strip 50 is previously stored downstream of the splicer 10 in a buffer memory or the like, so that the respective process can also be continued during splicing.
- the running material strip 50 is fixed on the support surface 28 by means of the two clamping fingers 40, 42 (the clamping fingers 40, 42 are lowered and press the material strip 50 onto the support surface 28 and the material strip 50 is between the support surface 28 and each clamping finger 40, 42 trapped).
- the new material strip 52 is also fixed on the support surface 28 by means of the roller-side clamping finger 40 (the lowered roller-side clamping finger 40 presses the new material strip 52 onto the support surface 28 and the new material strip 52 is between the support surface 28 and the roller-side clamping finger 40 - more precisely: clamped between the support surface 28 and the running material strip 50 resting there and the roller-side clamping finger 40).
- the new material strip 52 is lowered towards the support surface 28 by means of the hold-down device 64 on the drain-side clamping finger 42.
- the new material strip 52 is not fixed on the support surface 28 by means of the hold-down device 64 (the lower edge of the hold-down device 64 is higher than the lower edge of the clamping finger 42 on the outlet side).
- both material strips 50, 52 are fixed in the area of the support surface 28
- the actual connection of the material strips 50, 52 can begin. So far, the two material strips 50, 52 have overlapped in the area between the two clamping fingers 40, 42, i.e. in the adhesive area 62.
- a piece must be cut off at least at the free end of the new material strip 52, so that one end of the new material strip 52 results directly in the adhesive area 62. This is done by means of one of the two stamps 20, 22.
- the stamp 20 that is effective in this respect is referred to below as the first stamp 20 for distinction and can also be referred to as a cutting stamp 20.
- the first stamp 20 is positioned over the adhesive area 62 by means of the drive 34 and lowered there onto the adhesive area 62 using its own drive 24.
- the adhesive area 62 is a section of the support surface 28 and there is preferably an elastically compressible material there, for example an elastically compressible plastic.
- a blade 70 located on the underside of the cutting stamp 20 first comes into contact with the new material strip 52, presses it onto the old material strip 50 and presses both material strips 50, 52 onto the adhesive area 62 and cuts - especially when further pressing into the elastically compressible material there - both strips of material 50, 52.
- the first stamp 20 is then raised back into its starting position (by means of its drive 24).
- each material strip 50, 52 The free end of the new material strip 52 guided between the hold-down device 64 and the drain-side clamping finger 42 is the outlet-side end of the new material strip 52.
- the end of the new material strip 52 fixed between the roller-side clamping finger 40 and the support surface 28 is the roller-side end of the new material strip 52.
- the end of the old material strip 50 fixed between the outlet-side clamping finger 42 and the support surface 28 is the outlet-side end of the old material strip 50 and the end of the between Roll-side clamping finger 40 and support surface 28 fixed old material strip 52 is the roll-side end of the old material strip 50.
- the free end of the new material strip 52 on the drain side is pulled out of the adhesive area 62 immediately after it has been cut.
- the roll-side end of the new material strip 52 is still fixed by means of the roll-side clamping finger 40 and thus remains on the old material strip 50 and in the adhesive area 62.
- the roll-side end of the old material strip 50 is also still fixed by means of the roll-side clamping finger 40 and thus also remains in the Adhesive area 62.
- the outlet-side end of the old material strip 50 is also still fixed, namely by means of the outlet-side clamping finger 42 and therefore also remains in the adhesive area 62.
- the roll-side end of the new material strip 52 can be connected to the outlet-side end of the old material strip 50.
- the adhesive strip 54 provided for this purpose is guided along the underside of the second stamp 22 and the second stamp 22 can also be referred to as an adhesive stamp.
- the free end of the adhesive strip 54 is fixed to the second stamp 22 by means of a clamping device (adhesive strip clamping device 72) attached to the side of the second stamp 22 in the form of an alligator clip or the like.
- the second stamp 22 is positioned over the adhesive area 62 by means of the drive 34 and lowered there onto the adhesive area 62 using its own drive 26.
- the section of the adhesive strip 54 located under the second stamp 22 is applied to the material strips 50, 52, namely partly to the roll-side end of the new one Material strip 52 and partly onto the outlet end of the old material strip 50, and thereby the ends of the material strips 50, 52 are connected to one another.
- the overlap of the ends of the two material strips 50, 52 is preferably such that the section of the adhesive strip 54 covers approximately half of the roll-side end of the new material strip 52 and also approximately half of the outlet-side end of the old material strip 50 and thus connects the two ends together .
- the second stamp 22 After placing the section of the adhesive strip 54 located under the second stamp 22 on the two ends of the material strips 50, 52, the second stamp 22 is lowered further (by means of its drive 26) and the section of the adhesive strip 54 is firmly attached to the ends of the material strips 50, 52 pressed. Even then, the second stamp 22 is lowered further. Two parallel blades 74 located on the underside of the second stamp 20 come into contact with the adhesive strip 54 on both sides of the material strips 50, 52, press it onto the adhesive area 62 and cut it as it is lowered further - especially when pressed into the elastically compressible area there Material - the adhesive strip 54.
- the roll-side end of the new material strip 52 and the outlet-side end of the old material strip 50 are connected to one another with a short section of the adhesive strip 54.
- the second stamp 22 is then raised back into its starting position (by means of its drive 26).
- a distance between the two parallel blades 74 on the underside of the second stamp 20 preferably corresponds to a width of the material strips.
- the connection of the two material strips 50, 52 is free again and can be pulled off through the splicer 10 according to the respective process.
- the new material strip 52 runs off its roll and becomes a running strip of material.
- a new roll is provided, so that in a next splicing process, the material from this new roll forms the new strip of material and so on.
- a pulling device 80 is provided and the threaded new material strip 52 is/is fixed on the splicer 10 by means of the pulling device 80.
- the puller 80 is provided for fixing the free end of the new material strip 52 guided under the roller-side clamping finger 40 and over the outlet-side clamping finger 42 in the threaded state.
- the pulling device 80 is also provided for removing the end of the new material strip 52, which is guided under the roller-side clamping finger 40 and over the drain-side clamping finger 42, from the area between the two clamping fingers 40, 42. This removal ensures that only the ends of the material strips 50, 52 fixed by means of the clamping fingers 40, 42 are in the adhesive area 62 and that the adhesive strip 54 can therefore be pressed onto the ends of the new material strip 52 and the old material strip 50 that are to be connected to one another.
- this has a clamping device (material strip clamping device 82) in the manner of a crocodile clip or the like.
- the puller 80 is spring-loaded and movable in a manner not shown in detail along a linear guide (puller linear guide 84) and the linear guide 84 is attached to the outer surface of the splicer 10.
- the free end of the new material strip 52 is fixed to the puller 80 against the spring force of a corresponding spring element (spiral spring, elastic band, rubber band or the like) and the new material strip 52 is held between the roller-side clamping finger 40 and the puller 80 due to the effect of the spring force tense.
- the pulling device 80 pulls it out of the area between the two clamping fingers 40, 42 under the effect of the spring force.
- a side surface of the outlet-side clamping finger 42 namely the side surface facing the roller-side clamping finger 40, is inclined in the outlet direction. It is further advantageous in the embodiment shown (towards the end of the new Material strip 52 seen before cutting) between the drain-side clamping finger 42 and puller 80, for example at a lower end of the puller linear guide 84, a deflection 86 is provided, by means of which the threaded end of the new material strip 52 from a horizontal or approximately horizontal direction in a vertical direction is deflected parallel to the alignment of the puller linear guide 84.
- the structogram is the simplified representation of a control program 100 with an implementation of a method for operating the splicer 10.
- the structogram represents the method in the form of a sequence of a plurality of process steps. Each process step or a systematic group of process steps is shown in the form of a block:
- a new strip of material 52 is threaded into the splicer 10 and the adhesive strip 54 is attached under the second stamp 22.
- the stamps 20, 22 and the clamping fingers 40, 42 are or are raised - starting position of the stamps 20, 22; Starting position of the clamping fingers 40, 42.
- the stamp devices are or are positioned so that the first stamp 20 is above the material strips 50, 52 - starting position of the stamp devices.
- a respective process, for example a manufacturing process for packaging material, downstream of the splicer 10 is in operation.
- the running material strip 50 (active material strip 50) is drawn off through the splicer 10 for this process and a roll with the material of the active material strip 50 is active (the roll is driven, for example, in particular by means of a motor).
- the active material strip 50 runs in the splicer 10 under the two clamping fingers 40, 42 and under the hold-down device 64 on the outlet-side clamping finger 42. This is the lower strip of material 50 or the strip of material 50 in the lower level.
- a new strip of material 52 is already threaded into the splicer 10, but is not drawn off into the process and is therefore the currently passive material strip 52.
- the process of the lower (active) material strip 50 is stopped. As soon as the lower material strip 50 no longer moves, for example because a motor driving its roller is at a standstill, the material strips 50, 52 are automatically fixed by means of the clamping fingers 40, 42 and in the area of the support surface 28.
- the active (lower, now no longer running) material strip 50 is fixed by means of both clamping fingers 40, 42.
- the new (upper, passive) material strip 52 is fixed by means of the roller-side clamping finger 42 and lowered towards the support surface 28 by means of the hold-down device 64.
- the first stamp 20 is lowered from its starting position towards the support surface 28 and the blade 70 attached to the underside of the stamp 20 cuts through both strips of material 50, 52.
- the drain-side end of the new one is released (upper, passive) material strip 52 is pulled out of the adhesive area 62 of the support surface 28 by means of the puller 80.
- the first stamp 20 then moves back to its starting position.
- the two stamp devices are moved until the second stamp 22 is above the material strips 50, 52.
- the adhesive strip 54 runs along the underside of the second stamp 22, namely transversely or at least substantially transversely to the direction of travel of the material strips 50, 52.
- the second stamp 22 is lowered from its starting position towards the support surface 28 and the material strips 50, 52.
- the adhesive underside of the adhesive strip 54 comes with the surface of the material strips 50, 52, namely the roll-side end of the new (upper, passive) material strip 52 and the drain-side end of the old (lower, active) material strip 50, which is not covered by the new material strip 52 in contact and thus connects them.
- the clamping fingers 40, 42 are raised back into their starting position.
- the fixation of the old material strip 50 and the new material strip 52 then no longer exists and the resulting material strip 50, 52, which at least initially still comprises a part of the old (previously active) material strip 50 and the adjoining new (previously passive) material strip 52, can be pulled off the roll with the material of the new material strip 52 through the splicer 10 and under the clamping fingers 40, 42.
- the previous new material strip 52 is the active material strip.
- the new active material strip can now be fed back into the respective process downstream of the splicer 10.
- the device 114 of the splicer 10 includes changing the roll, threading the new strip of material 52 and attaching the adhesive strip 54 under the second stamp 22.
- the remnant of the old material strip 50 on the roll side is removed from the area of the splicer 10 (if necessary by manual intervention) and the roll from which the old one was previously Material strip 50 has been removed, is through replaced with a new role.
- a strip of material removed (manually) from this new roll is threaded into the splicer 10 above the running strip of material 50, 52. This is the new passive material strip.
- the adhesive strip 54 under the stamp 22 is renewed by peeling it (manually) from the roll with the material of the adhesive strip 54.
- the completion of these setup actions is confirmed by activating a control element provided for this purpose (for example by pressing a button).
- the process begins and the splicer 10 is set to the initial state 102. If the material of the now active material strip runs out, a new splicing process is possible and, optionally, a new splicing process takes place automatically.
- the individual method steps preferably run sequentially and any partial steps within a method step - in the order described above - preferably also run sequentially. Deviating from a truly sequential process, individual temporal overlaps and thus a partially parallel process are possible. For example, the lowering of the second stamp 22 when connecting 110 the material strips 50, 52 can already begin while the stamp devices are still being moved in preparation for the connection of the two material strips 50, 52.
- the control program 100 includes program code instructions for implementing the method steps described above, is loaded into a memory 120 of a control device 122 for the automatic operation of the splicer 10 and is executed by means of the control device 122 in a basically known manner during the automatic operation of the splicer 10.
- the control program 100 By controlling (activating or activating together with a direction specification) the corresponding drives 24, 26, 34, 41, 43, the control program 100 raises and lowers the stamps 20, 22, the positioning of one stamp 20, 22 over the adhesive area 62 and the raising and lowering of the clamping fingers 40, 42.
- the control program 100 also determines the respective time of each such control. As a result, the control program 100 causes the splicing process to proceed automatically using the splicer 10.
- a device 10 - splicer 10 - is specified for connecting a new strip of material 52 to an old strip of material 50.
- the splicer 10 includes a support surface 28 over which the old strip of material 50 runs, and this includes an adhesive area 62.
- the splicer 10 proposed here comprises means for fixing the two material strips 50, 52 on the support surface 28 or a fixation functional unit, means for cutting through the material strips 50, 52 fixed on the support surface 28 or a cutting function unit, and means for pressing an adhesive strip 54 onto the severed strips of material 50, 52 (and optionally for cutting off the side of the adhesive strip 54) or an adhesive functional unit.
- the clamping fingers 40, 42 on both sides of the adhesive area 62 act as a means for fixing the two material strips 50, 52 on the support surface 28 and as a fixation functional unit.
- the first stamp 20 and the blade 70 there.
- the second stamp 22 and those there act as a means for pressing the adhesive strip 54 onto the severed material strips 50, 52 and for optionally cutting off the adhesive strip 54 to the side and as an adhesive functional unit Blades 74.
- the new material strip 52 is guided under the roller-side clamping finger 40 and above the outlet-side clamping finger 42 and the old material strip 50 is guided under both clamping fingers 40, 42 and below the new material strip 52 and initially runs in there Direction of a process located downstream of the splicer 10.
- the process of the old material strip 50 is/is stopped and both material strips 50, 52 are/are fixed by means of the clamping fingers 40, 42 (generally: both material strips 50, 52 are fixed by means of the fixing functional unit).
- the first stamp 20 When connecting the two fixed material strips 50, 52, the first stamp 20, which is in a position above the material strips 50, 52 and above the adhesive area 62, is first lowered onto the fixed material strips 50, 52 and both material strips 50, 52 are in the adhesive area 62 by means of a Blade 70 on the first stamp 20 is severed (generally: the fixed material strips 50, 52 are severed by means of the cutting functional unit).
- the second stamp 22 After cutting through the two material strips 50, 52, the second stamp 22 is moved into the position previously occupied by the first stamp 20 over the material strips 50, 52 and over the adhesive area 62 to connect them, the second stamp 22 is then placed on the severed material strips 50, 52 is lowered and, by means of the second stamp 22, first an adhesive strip 54 guided along the underside of the second stamp 22 is pressed onto the sections of the material strips 50, 52 located in the adhesive area 62 and finally, by means of the second stamp 22, when the second stamp 22 is lowered further, the adhesive strips 54 the material strips 50, 52 are cut through on both sides by means of two blades 74 on the second stamp 22 (generally: the fixed material strips 50, 52 are connected to one another by means of the adhesive functional unit).
- the splicer 10 therefore comprises a fixing functional unit, a cutting functional unit and an adhesive functional unit, wherein for connecting the two material strips 50, 52 these can be fixed/are fixed by means of the fixing functional unit, can be severed/are severed by means of the cutting functional unit and can be connected to one another by means of the adhesive functional unit get connected.
Landscapes
- Replacement Of Web Rolls (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202022104612.3U DE202022104612U1 (de) | 2022-08-15 | 2022-08-15 | Vorrichtung zum Verbinden zweier Materialstreifen |
| PCT/EP2023/070172 WO2024037821A1 (de) | 2022-08-15 | 2023-07-20 | Vorrichtung und verfahren zum verbinden zweier materialstreifen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4547587A1 true EP4547587A1 (de) | 2025-05-07 |
| EP4547587B1 EP4547587B1 (de) | 2025-06-11 |
| EP4547587C0 EP4547587C0 (de) | 2025-06-11 |
Family
ID=87550990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23748720.2A Active EP4547587B1 (de) | 2022-08-15 | 2023-07-20 | Vorrichtung und verfahren zum verbinden zweier materialstreifen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4547587B1 (de) |
| DE (1) | DE202022104612U1 (de) |
| WO (1) | WO2024037821A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202023102345U1 (de) | 2023-04-28 | 2023-05-09 | Albert Slot | Vorrichtung zum Verbinden zweier Materialstreifen |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2987108A (en) * | 1959-02-02 | 1961-06-06 | Mercury Engineering Corp | Web butt splicer |
| GB1519524A (en) * | 1975-11-19 | 1978-08-02 | Agfa Gevaert | Butt splicer for butt-joining a fresh web to an expiring web |
| FR2750968B1 (fr) | 1996-07-12 | 1999-02-26 | Alaimo Andre | Dispositif de collage de bandes en continu |
| JP5996204B2 (ja) * | 2012-02-13 | 2016-09-21 | 日産自動車株式会社 | 帯状の電池素材の搬送装置および搬送方法 |
-
2022
- 2022-08-15 DE DE202022104612.3U patent/DE202022104612U1/de active Active
-
2023
- 2023-07-20 WO PCT/EP2023/070172 patent/WO2024037821A1/de not_active Ceased
- 2023-07-20 EP EP23748720.2A patent/EP4547587B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024037821A1 (de) | 2024-02-22 |
| EP4547587B1 (de) | 2025-06-11 |
| EP4547587C0 (de) | 2025-06-11 |
| DE202022104612U1 (de) | 2023-11-16 |
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