EP4070926A1 - Cutting device for cutting narrow strips from a strip of material, in particular a rubberized strip of material - Google Patents

Abstract

Cutting device for cutting narrow strips (2) from a strip of material (3), in particular a rubberized strip of material (3), in or on which elements (8) that can be magnetically coupled one behind the other at defined intervals in the strip's longitudinal direction are embedded or arranged, comprising a device frame (33) arranged knife table (14) on which the strip of material (3) to be cut can be positioned, a cutting device (35) comprising a cutting knife (10) which can be moved relative to the knife table (14) from a starting position into a cutting position, and a cut strip (2) receiving and transporting gripping means (5, A, B) movable relative to the knife table (14), wherein- either the gripping means (5, A, B) has a strip of material positioned on the knife table (14) for cutting onto Attachable hold-down section (17) which fixes the strip of material (3) to the knife table (14) during the cut, and a magnetic element (18), interacts magnetically with the magnetically couplable element (8) of the cut strip (2) to fix the strip (2) on the gripping device (5, A, B) for transport into a delivery position, and wherein the hold-down section (17) has a recess (23) through which the cutting knife (10) can be moved to the knife table (14) into the cutting position, - or the gripping device (5, A, B) has one for cutting onto the material strip positioned on the knife table (14). attachable hold-down section (17), which fixes the strip of material (3) on the knife table (14) during the cut, and a magnetic element (18), which can be connected to the element (8) of the cut strip (2) that can be magnetically coupled to fix the strip (2 ) interacts magnetically on the gripping device (5, A, B) for transport into a delivery position, and wherein at least one further hold-down element (110) is provided, which is used for cutting while forming a free space (112) can be placed on the material strip (3) at a distance from the hold-down section (17), the cutting blade (10) being movable into the cutting position through the free space (112) to the blade table (14).

Description

The invention relates to a cutting device for cutting narrow strips from a strip of material, in particular a rubberized strip of material.

For different applications, it is sometimes necessary to arrange or integrate a narrow strip of a material strip on an object, in which strip at least one magnetically couplable element is embedded or on which strip such a magnetically couplable element is arranged. The material strip serves as a carrier for the element. Such an element is used, for example, for identification purposes, so that the object on which it is arranged can be marked or identified using the element. The material strip is a flexible strip material made of plastic, preferably made of a rubberized material, meaning industrially manufactured elastomers. Depending on the material, this can also be sticky. A magnetically coupleable or interactive element can be, for example, a metal strip or a magnet or the like, the presence of which on the equipped object can be detected by means of a suitable detection or reading device. In particular, the element can be an RFID chip on which defined information can be stored, which can then be read out on the respective object fitted with the RFID chip in order to identify it.

An example of an application where such strips fitted with at least one element can be installed is in the field of tire manufacture. By integrating such a strip fitted with an element into the tire during the tire building process, each individual tire is individually provided with such an identification element, for example an RFID chip, so that it can be identified. For example, corresponding information regarding the date of manufacture, the manufacturing batch, the permissible filling pressure, etc. can be stored on the RFID chip and, if required be read out. However, this application example is not restrictive, applications in other areas are also conceivable.

As part of the production of such strips, the material strip is first produced in which the elements that can be magnetically coupled, for example the RFID chips, are embedded or on which they are arranged. For this purpose, the isolated elements or RFID chips are placed, for example, on a first web of material, for example a first rubber web, after which a second web of material, i.e. a second rubber web, is placed on top of this first web of material and thus the laid-on elements, so that the elements or RFID chips are embedded in this case. The result is a sandwich band, ie a corresponding, two-ply rubberized material band whose individual layers can ultimately no longer be separated due to their stickiness.

It is then necessary to cut off the individual strips from this strip of material, each strip having at least one element. However, cutting narrow strips is particularly problematic when very narrow strips are to be cut, for example if the strip width is in the range of a few millimeters, for example approx. 8 to 12 mm. Due to the flexibility of the material strip and also because of its sometimes given stickiness, problems arise when using a cutting knife resulting from any movement of the material strip during the cut, so that there can be inaccuracies in subsequent cuts, i.e. an exact cutting of the desired strip geometry or strip width is not guaranteed. However, this is necessary because corresponding requirements are placed on the permissible strip size with regard to further processing.

The invention is therefore based on the problem of specifying a suitable cutting device for cutting narrow strips from a strip of material, in particular a rubberized strip of material.

• entweder die Greifeinrichtung einen zum Schneiden auf das auf dem Messertisch positionierte Materialband aufsetzbaren Niederhalteabschnitt, der das Materialband während des Schnitts am Messertisch fixiert, und ein Magnetelement, das mit dem magnetisch koppelbaren Element des geschnittenen Streifens zur Fixierung des Streifens an der Greifeinrichtung für einen Transport in eine Abgabeposition magnetisch wechselwirkt, umfasst, und wobei der Niederhalteabschnitt eine Ausnehmung aufweist, durch die hindurch das Schneidmesser zum Messertisch in die Schneidposition bewegbar ist,
• oder die Greifeinrichtung einen zum Schneiden auf das auf dem Messertisch positionierte Materialband aufsetzbaren Niederhalteabschnitt, der das Materialband während des Schnitts am Messertisch fixiert, und ein Magnetelement das mit dem magnetisch koppelbaren Element des geschnittenen Streifens zur Fixierung des Streifens an der Greifeinrichtung für einen Transport in eine Abgabeposition magnetisch wechselwirkt, umfasst, und wobei ein wenigstens weiteres Niederhalteelement vorgesehen ist, das zum Schneiden unter Ausbildung eines Freiraums beabstandet zum Niederhalterabschnitt auf das Materialband aufsetzbar ist, wobei das Schneidmesser durch den Freiraum zum Messertisch in die Schneidposition bewegbar ist.

To solve this problem, a cutting device is provided according to the invention for cutting narrow strips from a strip of material, in particular a rubberized strip of material, in or on which elements that can be magnetically coupled one behind the other at defined intervals in the strip's longitudinal direction are embedded or arranged, comprising a knife table arranged on a device frame, on which the strip of material to be cut can be positioned, a cutting device comprising a cutting knife that can be moved relative to the knife table from a starting position into a cutting position, and a gripping device that receives and transports a cut strip and is movable relative to the knife table, wherein

• either the gripping device has a hold-down section that can be placed on the strip of material positioned on the knife table for cutting and that fixes the strip of material on the knife table during the cut, and a magnetic element that can be connected to the element of the cut strip that can be magnetically coupled to fix the strip on the gripping device for transport in a release position interacts magnetically, and wherein the hold-down section has a recess through which the cutting knife can be moved to the knife table into the cutting position,
• or the gripping device has a hold-down section that can be placed on the strip of material positioned on the knife table for cutting and that fixes the strip of material on the knife table during the cut, and a magnetic element that can be connected to the element of the cut strip that can be magnetically coupled to fix the strip on the gripping device for transport to a Discharge position interacts magnetically, and wherein at least one further hold-down element is provided, which can be placed on the material strip for cutting while forming a free space at a distance from the hold-down section, the cutting knife being movable through the free space to the knife table into the cutting position.

The cutting device according to the invention also enables very narrow strips to be cut precisely, for example with a section width of between 8 and 12 mm, with a preferred strip length of between 70 and 80 mm, even with Using a stickier, rubberized material tape. At the same time, the cutting device enables such a cut strip to be picked up in a simple manner by means of a gripping device, via which the strip can be transported away.

For this purpose, the cutting device has a cutting device with a cutting blade that can be moved from a starting position to a cutting position, in particular an ultrasonic cutting blade comprising a blade unit in the form of an ultrasonic booster with a corresponding blade, usually called a horn, or a heatable blade, with a correspondingly wide blade. This cutting knife can expediently be moved linearly from above onto the material strip, which material strip rests on a corresponding knife table. The knife is moved into a corresponding cutting position, and after being placed on the material strip it cuts through the material strip until the cutting position is reached.

According to a first alternative, the strip of material is fixed to the blade table by means of a gripping device during the entire cutting process. This gripping device serves on the one hand to fix the strip of material and then the cut strip during the entire duration of the blade movement, and on the other hand also to pick up and fix the strip for the subsequent transport away. In order to fix the material strip, the gripping device has a hold-down section that can be placed flat on the material strip positioned on the knife table from above. This presses on the strip of material with a sufficiently measured force and presses it against the knife table, so that it is virtually clamped immovably between hold-down section and knife table. This means that the free end of the material strip that is at the front in the transport direction lies on the knife table and is fixed in position by the hold-down section. In the area of this front end there is necessarily at least one element that can be magnetically coupled, with the strip being intended to be severed at this front end.

Furthermore, a magnetic element is arranged on the gripping device itself, which magnetically interacts with the magnetically coupleable element provided in the region of the leading end. A corresponding fixation of the front end of the strip is possible via this magnetic interaction if the cyclical transport is also to be supported using the gripping device. At least, however, the fixation of the cut strip is possible in this way, so that it is fixed magnetically to the gripping device or on the underside of the hold-down device and can then be moved and transported away via the movable gripping device.

As described, the gripping device rests on the upper side of the material strip, covering its front edge or its front end in a planar manner. So that the material strip is fixed over a sufficient length, seen in the transport direction, the hold-down section also has a corresponding length, seen in the strip transport direction, i.e. it holds the material strip, seen from its front edge, over a length of several centimeters, for example 4 to 8 cm, with a corresponding width which is greater than the width of the strip material. So that a correspondingly narrow strip with a width (seen in the conveying direction of the material strip) of a few millimeters, for example 8 to 15 mm, is possible despite the large-area fixation via the hold-down section, according to the invention, according to the first alternative, the hold-down section has a recess through which through which the cutting knife can be moved to the knife table in the cutting position. This means that the cutting blade cuts through the hold-down section. However, since the hold-down section fixes and holds down the material strip both in the area immediately at the end of the strip and also in the following strip area adjoining the recess, it is thus ensured that it cuts into the material strip both during the cut, i.e. when the cutting knife cuts through the recess , as well as when pulling out the cutting knife after the cut, there is no relative movement on the part of the material strip and the cut strip. Because there is a corresponding fixation of the material strip both in front of and behind the actual cutting line.

The cutting device according to the invention therefore also enables extremely narrow strips to be cut, since according to the invention cutting is made through the hold-down section, with simultaneous fixing of the strip material on both sides in front of and behind the cutting line.

According to the second alternative according to the invention, the strip is held down not only by the gripping device, but also with at least one hold-down element which, like the gripping device, is placed on the material strip. The hold-down element is arranged in front of the gripping device, seen in the direction of transport, ie lies on the material strip in front of the gripping device for the cut. There is a distance between the hold-down element and the gripping device, that is to say a free space. The cutting knife now moves into this in order to cut off the strip. The gripping device does not have a recess here, rather the reach-through area through which the cutting blade is guided is defined or limited by the further hold-down element. The strip of material is also fixed in front of and behind the cutting knife in this alternative. This configuration according to the invention makes it possible to variably hold down the material strip, after the gripping device including hold-down section and the hold-down element can be controlled separately and consequently can be lifted again either synchronously or at different times, in particular from the material strip. Likewise, the cutting blade can also be moved decoupled from the gripping device and the holding-down element, which, for example, allows the cutting blade to remain in the cutting position while the gripping device is raised and takes the strip with it, and while the holding-down element is still sitting on the material strip.

This second alternative configuration is particularly advantageous when the web of material is very sticky. When processing such a strongly sticky material strip only with the gripping device of the first alternative, it can happen that the material strip adheres more strongly to the gripping device or to the hold-down section having the recess, so that not only the cut strip is lifted, but also the edge of the web of material that also adheres to the holddown section. It can also happen that when the cutting knife is raised out of the cutting position after the cut and before the gripping device is raised, the strip and the material band immediately stick together again due to the high stickiness of the material, which makes lifting the strip even more difficult. This can be avoided with the second alternative. Because the holding down takes place with two separate elements, namely the gripping device or its hold-down section on the one hand and the holding-down element arranged in front on the other hand, the lifting can take place after the cut in such a way that the hold-down element is briefly lowered and rests on the edge of the material web while the gripping device is raised becomes. Since the gripping device does not reach down to the strip of material, only the strip can be lifted without taking the edge of the web of material with it. It is also possible that the cutting blade remains in the cutting position until the gripping device is raised and represents a parting plane via which the strip and the material web edge are separated, so that the two cannot stick to one another. Only after the gripping device has been raised and the strip has been removed from the edge of the material web, possibly only minimally, can the cutting blade be raised and the hold-down element lifted from the material web.

Furthermore, as described, the gripping device can be moved relative to the knife table, i.e. it can be moved towards it in order to fix the material strip and quasi pick up the cut strip after the cut, or it can be moved away from the knife table to transport the strip away. Since the hold-down section is also provided on the gripping device, a very compact unit is therefore provided which is used both for fixing for the cut and for receiving and transporting away the cut strip, which is fixed to the hold-down section via the magnetic interaction of the magnetic element with the strip-side element is, serves. This means that the gripping device has a dual function, namely on the one hand the sole or partial fixing of the tape, but on the other hand also gripping or picking up and removing the strip. the The cutting device itself consequently combines the coupling of the material strip and the resultant cut strip with the gripping device with the actual cut, so that immediately after the end of the cut the cut strip is fixed via the magnetic element on the hold-down section and consequently it is transported away immediately after the cut can be done. Picking up the cut strip after the cut is not necessary here, since the strip is magnetically connected to the gripping device at the time of its production, ie at the time of cutting.

For the individual movements of the movable components such as cutting blade, gripping device, hold-down element, etc., corresponding adjusting means are of course provided for the respective movement, in particular adjusting cylinders that work pneumatically, hydraulically or electrically and can be moved via the very precise adjusting paths. The magnetic element can be a strip, for example, on which one or more permanent magnets are arranged.

As described, according to the invention, according to the first alternative, the hold-down section is provided with a recess through which the knife cuts. In order not to make the contact surface of the hold-down section on the material strip too large and still achieve the best possible fixation in the area of the cutting line, it is expedient if the recess is designed as an elongated slot. Viewed in the direction perpendicular to the tape transport direction, this elongated slot naturally has a length that is greater than the tape width, since the cutting blade is also wider than the material tape. The width of the slit, viewed in the direction of transport of the tape, is as narrow as possible since the cutting knife itself is very narrow. A slot width of 5 to 15 mm, for example, is sufficient, depending on the thickness of the cutting blade. In particular, if the cutting blade, which will be discussed below, is adjustable in its cutting angle, which will be discussed below, a slightly larger slot width can be selected. This also applies in relation to the second alternative, according to which between the hold-down element and the gripping device or their Hold-down section a free space, so a distance is created. This is also expediently designed as a narrow slot running transversely to the longitudinal direction of the strip, so that here too it is ensured that the material is fixed close to the actual cutting plane.

One of the central elements of the cutting device is the gripping device. This can have a housing with a base and a hold-down plate arranged on the housing or on the base, with the hold-down plate and at least one section of the base forming the hold-down section. The hold-down plate and the base section are flush with one another as far as their exposed underside forming the hold-down section is concerned, ie they run in one plane. Alternatively, it is conceivable in a simpler configuration to provide only a simpler plate-shaped carrier instead of a housing, on which the magnetic element is arranged, similar to the housing. If it is expedient for manufacturing reasons, a hold-down plate can be arranged on the carrier, in which case the hold-down plate and at least one carrier section also form the hold-down section, with the underside of the hold-down plate here again being flush with the underside of the carrier. Alternatively, however, it is also conceivable to provide only one carrier which is provided with the recess or slot, ie no additional hold-down plate. In this case, accordingly, only one corresponding carrier section forms the hold-down section. Furthermore, the underside of the housing or the base or the carrier itself can also form the hold-down section, in particular with regard to the second alternative. This means that no separate hold-down plate has to be provided here, but it can be. The free space is then formed here directly between the hold-down element and the housing or base or carrier.

If a hold-down plate is provided, the recess, in particular the slot, is expediently provided between the hold-down plate and the housing or the carrier. This means that the hold-down plate only extends the housing or the carrier, so that the gripping device has a correspondingly large overlapping section, which rests on the material strip.

An advantageous development of the invention with regard to both alternatives provides that the magnetic element interacts with the element that can be magnetically coupled through the base or the carrier. As described, the base or carrier section overlaps the strip area to be cut at the leading end of the strip, which means that the element that can be magnetically coupled is arranged below the base or carrier section. The magnetic element is now expediently arranged in such a way that it interacts with the element through the floor or the carrier, and therefore binds it magnetically. Due to the fact that the base or support section is closed in the contact area, a large-area contact that distributes the contact pressure as best as possible is ensured. At the same time, however, the fact that the magnetic element is arranged above the element on the strip side and acts through the base or support means that it is also positioned very closely to the element, which allows secure magnetic fixing. This means that the magnetic element is arranged as vertically as possible above the strip-side element in order to avoid lateral magnetic forces acting on the element, causing a transverse pull, between the magnetic element and the strip-side element. At least the bottom or the carriers are made of an appropriate material that conducts the magnetic flux, so that the magnetic element can couple to the strip-side element.

A projection forming a run-on edge for the strip of material can be provided on the side of the base or of the carrier facing the knife table. If the gripping device is lowered onto the strip material, since the magnetic element is arranged on the gripping device, the edge of the strip material that has not yet been fixed can be slightly lifted, ie it is pulled in the direction of the gripping device. The projection stops the tape movement.

In an expedient embodiment of the invention, the magnetic element is between a raised and a lowered position, in which it is connected to the element interacts magnetically, movably arranged on or in the housing or on the carrier. This means that the magnet element can be moved in a defined manner between two positions, so that it can be brought into a lowered position in a targeted manner, in which it first interacts magnetically in a defined and intended manner with the strip-side element. For this purpose, the magnetic element is preferably pivotably mounted on the housing or on the carrier, ie it can be moved between a pivoted-up rest position and a pivoted-down coupling position. A corresponding actuating means, for example a pneumatically, hydraulically or electrically operating actuating cylinder, is also used here for the movement.

In the second alternative, as stated, the movable hold-down element is also provided on the gripping device in addition to the hold-down section. In order to be able to adjust this between the raised non-working position and the working position lowered onto the material strip, the hold-down element can be moved linearly or pivotably relative to the material strip by means of a movement device. For example, it can be moved linearly in a vertical movement, or pivoted about a pivot axis by a pivot angle. The respective adjustment movement can be relatively small, since it is only necessary to raise the hold-down element to such an extent that the material strip can be conveyed for the next cycle. Raising e.g. by a distance of e.g. 0.5 - 3 cm or pivoting by e.g. B. 3° - 15° is sufficient.

The hold-down element itself can be a linearly or pivotally movable bar or a pivotable flap. Both allow the web of material to be held down securely, having naturally extended across the full web width. It is also conceivable, for example with wider material strips, to arrange two or more strips or flaps next to one another and possibly a little apart from one another in order to reduce the contact surface, since it would be sufficient for holding down if the material strip was only held down locally at several points.

It is expedient here if the strip or the flap can be placed onto the material strip with one edge. There is consequently only a narrow line of contact between the edge and the strip of material, which is sufficient for the hold-down and at the same time ensures that the strip of material does not stick to the hold-down element. The hold-down element can also consist of a material that has reduced adhesion to the strip material, e.g. an anti-adhesion plastic, or be covered with such a coating. Incidentally, this also applies to the hold-down section of the gripping device, also with regard to the first alternative.

The cutting blade itself can be an ultrasonic cutting blade or a heatable cutting blade. A heated cutting blade is advantageous in particular for cutting very sticky material, since heating reduces the cutting force and thus adhesion to the cutting base, particularly in the case of very sticky material, can be avoided.

In a development of the invention, it can be provided that the cutting blade is arranged on a blade carrier, which is arranged in a holder so that it can move linearly. A defined, linear movement of the cutting knife is ensured by this linear guide of the knife carrier on the holder. This cutting knife movement also takes place via a correspondingly controllable actuating means such as a pneumatically, hydraulically or electrically operating actuating cylinder.

The position of the cutting knife or its linear mobility can be such that the cutting knife can only be placed vertically from above onto the plane of the material strip. This means that only one cut with a right-angled cutting edge is possible. If a different cutting angle is desired, a correspondingly different angular position and thus the direction of the linear movement is required. This means that the corresponding cutting angle or the arrangement of the cutting blade relative to the material strip is fixed and unchangeable. An advantageous embodiment of the invention, however, provides that the holder on which the cutting blade is arranged on the blade carrier to a perpendicular to Band longitudinal direction of the band material horizontally extending pivot axis is pivotable relative to the device frame. Accordingly, the holder and with it the cutting blade can be pivoted about a horizontal axis, so that the cutting angle can be adjusted, for example, between a vertical cut with a 90° cutting edge and an angular cut with a 45° cutting edge, for example. This enables the user to set different cutting angles if required, in which case the cutting line always runs perpendicular to the longitudinal direction of the strip.

In this context, however, it is also conceivable not only to adjust the cutting angle at the actual cutting edge. Rather, it is basically also possible to vary the angle that the cutting line assumes to the longitudinal direction of the strip, i.e. to pivot the cutting blade about a vertical axis, so that a cutting line at an angle ≠ 90° to the longitudinal direction of the strip is possible. To do this, it is not only necessary to pivot the cutting knife or the corresponding holder about the vertical axis, but also the downstream periphery including the gripping device, since the cut strip then naturally runs at a corresponding cutting angle to the longitudinal axis of the strip.

If, as described, the holder can be pivoted about a horizontal pivot axis, the pivot axis should preferably coincide with a cutting line that lies in the plane of the knife table and is defined by the cutting edge of the cutting knife in the cutting position. This means that the cutting edge of the cutting knife always hits the knife table at one and the same cutting line, regardless of the cutting angle set. Of course, the "coincidence" also includes minor deviations, mostly due to tolerances, which means that a common cutting line is basically realized regardless of the cutting angle.

As explained above, the gripping device can be moved relative to the knife table, on the one hand in order to set it down on the material strip for holding it down and to couple the magnetic element to the strip-side element, and on the other hand, to move and transport the magnetically fixed cut strip. According to one specification of the invention, it is provided for this purpose that the gripping device is arranged on a movement device that can be moved both vertically and horizontally relative to the knife table. This movement device, which is described in detail below and in various design variants, is basically responsible for the vertical movement of the gripping device, i.e. the lowering and lifting movement of the gripping device, as well as for the horizontal movement of the gripping device or the movement of the gripping device in a horizontal plane, e.g. B. to move the gripping device into a release position in which the cut strip is released, or for example, if the gripping device is also used as part of the clocked strip feed, to move horizontally for this purpose. This means that several degrees of freedom of movement, namely in the vertical and horizontal direction or plane, are made available via this movement device.

A particularly advantageous development of the invention provides that the movement device is set up for vertical and horizontal movement along respective linear axes and for horizontal movement by rotation about a vertical axis. This means that on the one hand a vertical degree of freedom of movement is realized in that a linear axis movement is realized via corresponding elements of the movement device. A horizontal movement is also provided along at least one horizontal linear axis realized via corresponding elements. This means that linear lifting and traversing movements take place here. In addition to these linear movements, however, a rotary movement is also provided, which means that the movement device has corresponding elements that enable the gripping device to rotate about a vertical axis, so that the gripping device can be pivoted in a horizontal plane. This means that it can be pivoted away from the knife table and towards the knife table by this rotation, while the vertical and horizontal linear axes allow a corresponding linear movement of the gripping device from and to the knife table.

In particular, the implementation of the rotational movement on the part of the movement device makes it possible with particular advantage to provide not just one gripping device, but two gripping devices, which are rotated by 180° and arranged adjacent to one another, and which are connected together and simultaneously to the cutting device by a rotation on the part of the movement device are rotatable towards and away from this. The two gripping devices are therefore aligned opposite to one another, viewed in the direction of tape transport. While one gripping device is positioned adjacent to the cutting device and a cut strip can be picked up at this gripping device, the second gripping device is positioned away from the cutting device and moves a cut strip to a delivery position. This means that one gripping device picks up a strip while the other gripping device releases a strip. This enables a dramatic increase in throughput, since a cut strip can be picked up and a previously cut strip can be released simultaneously in a common work cycle. In this context, it is conceivable that the two gripping devices can each be moved separately or independently of one another, correspondingly vertically and/or horizontally via corresponding linear guides, so that within a work cycle in which one gripping device interacts with the material strip and the other the delivery of a cut strips effected, the individual gripping devices can perform clock-related independent movements of each other. These linear, independent movements are also effected via appropriate actuating means, such as suitable pneumatic, hydraulic or electric actuating cylinders, which can be controlled accordingly.

In order to connect the work unit comprising the movement device and one or both gripping devices to the installation frame and at the same time to realize a first linear horizontal degree of freedom of movement, the invention also provides that the movement device has a carriage, via which it can be moved horizontally on an installation frame provided linear guide is arranged. The entire structure of the following components of the movement device arranged on this carriage, together with the gripping device or devices, can therefore be moved horizontally relative to the device frame and the knife table fixed in position thereon via this slide guide on the device frame. This movement is also expediently carried out via an actuating means, in particular in the form of an actuating cylinder that operates pneumatically, hydraulically or electrically. The adjustment movement is relatively short, it is only a few centimeters. In particular, it can be used to implement a clocked tape feed by means of the gripping device or to integrate the gripping device therein. For this purpose, the gripping device is placed on the material strip end to be moved into the cutting position and then, by moving the carriage, the gripping device together with the strip material is moved linearly by the corresponding section width, i.e. for example approx. 8 to 15 mm, and the strip end is brought into the cutting position in which it is then fixed to the knife block via the gripping device.

In order to realize a linear, vertical degree of freedom of movement, a holder can be arranged on the carriage so that it can move vertically, with which the gripping device is coupled or with which both gripping devices are coupled. Here, too, a suitable linear guide is provided on the carriage, on which the holder is arranged so that it can move vertically. The holder as part of the movement device is movement-coupled to the gripping device or devices, which means that in the event of a vertical movement of the holder, the or both gripping devices are necessarily also moved vertically. The holder is also expediently moved by means of an actuating element in the form of a pneumatically, hydraulically or electrically operated actuating cylinder.

In order to realize this vertical movement in a simple manner, a pivoted lever which is pivoted on the carriage and can be moved via an actuating element, for example the actuating cylinder described above, can be provided, which is coupled to the holder. A translation can be realized via this lever arrangement. This is useful because the vertical stroke that the or both gripping devices are ultimately intended to carry out this, can be relatively small, it is in the range of a few millimeters, for example 2 to 4 mm. Since most of the weight of the moving device, together with the gripping device or devices, is supported via the pivot point of the pivoting lever, a gentle up and down movement can be achieved here.

In order to enable an independent, direct movement of one or both gripping devices, an expedient embodiment of the invention provides that the movement device has a mounting plate on which the one or both gripping devices are attached along a horizontal axis and/or along a Vertical axis are arranged linearly movable. This mounting plate consequently forms an assembly interface on which one or both gripping devices can be built. Relative to this mounting plate, the or each gripping device is linearly movable either only along a vertical axis, along a horizontal axis, or along both. This means that additional degrees of freedom of movement can be realized here, possibly in addition to the above-described mobility along the horizontal and vertical axes. These are expedient in particular when two gripping devices are provided, since, as described above, they allow different, separate movements to be carried out with different cycle times.

A development of this idea of the invention provides that the gripping device or one gripping device is arranged on a vertical adjusting device, which is arranged on a horizontal linear guide on the mounting plate. This vertical adjustment device and horizontal linear guide are also part of the movement device. In turn, the vertical adjustment as well as the horizontal adjustment can take place via corresponding adjusting elements such as pneumatically, hydraulically or electrically operating adjusting cylinders, the vertical and horizontal movement of course being independent of one another.

If a rotational movement is also provided on the part of the movement device, which is already useful with only one gripping device, but is particularly advantageous in the case of two gripping devices, a rotary drive is expediently provided for this purpose, which is coupled to the gripping device or to the two gripping devices. This means that one or both gripping devices can be pivoted in the horizontal plane via this rotary drive. This rotary drive can be arranged on the holder which, as described above, is arranged on the horizontally movable carriage via a vertical linear guide. This means that the rotary drive is also raised vertically via the holder, and with the rotary drive, of course, also the gripping device or both gripping devices coupled to it. It is conceivable that the rotary drive is connected directly to the mounting plate via a corresponding connection. This means that the mounting plate is connected, for example, to a corresponding mounting flange of the output shaft of the rotary drive, so that the entire structure made up of the mounting plate and gripping device(s) is seated on the rotary device.

Overall, the different design variants therefore allow the realization of a plurality of different, separately adjustable degrees of freedom of movement, both in the form of linear movements and a rotary movement, whereby they either cover large parts of the movement device or the corresponding gripping and transport structure from the linear movement, or only individually one or the respective gripping device.

In order to cut a strip, the strip of material must be advanced in cycles by the respective strip width, i.e. it must be transported into the area of the cutting device. For this purpose, a means of transport, in particular a conveyor belt, can be provided on the installation frame for transporting the material strip to the cutting device. This means of transport is therefore part of the cutting device, and the clocked feed takes place via the means of transport by the small feed length corresponding to the width of the strip. A conveyor belt is preferably used, which is expediently made of one material exists, which has only a low adhesion to the material strip, so that this adheres to it as little as possible.

According to a particularly advantageous development, it can be provided that the movement of the transport means and a horizontal movement of the movement device, during which the gripping device is seated on the strip material and the magnetic element interacts with the element that can be magnetically coupled, are synchronized for transporting the strip material into the cutting position. As already explained above, there is the optional possibility of integrating a gripping device into the clocked belt feed. For this purpose, after a cut has been made and the cut strip has been transported away, the gripping device is brought back into a position above the end of the strip which is not yet in the actual cutting position. The gripping device is lowered, the magnetic element couples with the belt-side element located immediately below. The gripping device is then raised slightly vertically and on the one hand the conveyor belt is moved clocked in the transport direction and at the same time the gripping device is also moved in the transport direction via the movement device. Both movements, i.e. those of the conveyor belt and the gripping device, are synchronized so that they both cover exactly the same distance. The movement ends when the leading edge of the strip has reached the end position, after which the gripping device is lowered and places the end of the strip on the knife table and fixes it at the same time. This ensures an exact transport movement and positioning of the end of the belt.

Different configurations are conceivable for moving the means of transport. On the one hand, a corresponding drive motor, which drives a drive roller over which the preferably belt-shaped transport means runs, can be provided for this purpose. This drive motor is synchronized with the corresponding actuating element for the horizontal movement of the carriage, via which the movement of the gripping device takes place. Alternatively, to move the transport means, a clamping means that detachably engages thereon and is linearly movable can be provided. This clamping means, for example, about a corresponding actuating cylinder can be moved horizontally in both directions is, of course, synchronized in its operation with the actuating operation of the carriage.

In order to prevent the material strip lying on the transport means from being able to slip, it is expedient if one or more magnetic means which interact magnetically with the elements of the material strip are provided below the upper strand of the transport means. This means that these magnets couple magnetically to the belt elements and fix them to the conveyor belt, so that the material belt is secured against slipping.

Furthermore, a transfer table that guides the strip of material and can be raised and lowered can be provided between the end of the transport means and the knife table. Since the transport means is a circulating transport means, preferably a conveyor belt as described, there is a gap between the end of the transport means and the knife table. This is bridged by a transfer table. The transfer table can be raised and lowered so that the strip can be smoothly transferred to the knife table. As part of this transfer, the end of the material strip can be lifted and conveyed via the gripping device, as stated. This lifting and lowering movement can be supported via the transfer table. The transfer table is expediently coupled to a movement on the part of the movement device, in particular the vertical movement of the holder, within which the gripping device can be raised and lowered, after this movement is used to raise the gripping device for the subsequent tape transport into the cutting position. This coupling can take place purely mechanically, for example via a lever arrangement or via a driver arm and a link guide or the like. Alternatively, of course, the transfer table can also have its own control element, such as a control cylinder. The table movement can be stop-limited in both directions.

It is expedient if the transfer table is provided with a sliding support or sliding coating, i.e. a non-stick coating, since the material strip is pulled over it.

The transfer table is preferably pivotably mounted and can be raised and lowered with the end adjacent to the knife table. This means that the transfer table can be set up like a ramp, so that the material strip can be pulled into a defined, raised position.

In order to enable a gap-free transition from the transfer table to the knife table, it is conceivable to provide a chamfer on the transfer table at the end adjacent to the knife table, which in the lowered position is arranged adjacent to a shape-compatible chamfer on the knife table.

Furthermore, a recess for accommodating a section of the gripping device, in particular a projection provided on its underside, can be provided on the upper side of the knife table in the region of the end facing away from the cutting device.

The knife table itself preferably has a support, in particular made of plastic, that forms its upper side and carries the strip material. This support is also preferably made of a material that has the lowest possible tendency to adhere to the material strip. If provided, the above-described chamfer and/or the recess are formed on this support.

In addition to the cutting device itself, the invention also relates to a device for producing and processing strips of a material strip, each of which contains at least one magnetically couplable element, comprising a cutting device of the type described above and a receiving device connected downstream of this for receiving the individual strips on a carrier.

The receiving device accepts a strip supplied by the gripping device on a suitable carrier, in particular a corresponding film, i.e. a flexible carrier medium that is particularly suitable for winding up in order to form a corresponding wound roll, which can then be further processed in a downstream processing device and the individual cut Strips with the elements or RFID chips can be unwrapped again, removed and introduced into tires in a corresponding processing device, for example a tire building machine.

It is conceivable that in the receiving device the carrier covered with the strip is covered with a further carrier, ie a second film, so that the strips are arranged between the two carriers. However, this second carrier or film is not mandatory.

Furthermore, the receiving device can have a winding device, or this can be followed by a winding device, in which the carrier or carriers covered with the strips, as already described, are wound into a roll.

Fig. 1

eine Prinzipdarstellung zur Erläuterung der Funktion einer erfindungsgemäßen Schneideinrichtung sowie einer erfindungsgemäßen Vorrichtung,

Fig. 2

die Anordnung aus Fig. 1 in einer Aufsicht,

Fig. 3

eine detailliertere Seitenansicht der Anordnung aus Fig. 1,

Fig. 4

eine Aufsicht auf die Anordnung aus Fig. 3,

Fig. 5

eine Seitenansicht der erfindungsgemäßen Schneideinrichtung,

Fig. 6

eine Aufsicht auf die Schneideinrichtung aus Fig. 5,

Fig. 7

eine Detailansicht eines Teils der Bewegungseinrichtung mit Schlitten und daran angebundener Vorschub-Klemmeinrichtung,

Fig. 8

eine Detailansicht eines Teils der Bewegungseinrichtung mit Halterung, Drehantrieb, Montageplatte und zwei Greifeinrichtungen,

Fig. 9

die Anordnung aus Fig. 8 mit einer vertikal und horizontal verschobenen Greifeinrichtung,

Fig. 10

die Anordnung aus Fig. 9 mit einer ausgeblendeten Greifeinrichtung, wobei die gezeigte Greifeinrichtung vertikal angehoben ist,

Fig. 11

eine vergrößerte Detailansicht einer Greifeinrichtung mit abgesenktem Magnetelement,

Fig. 12

die Greifeinrichtung aus Fig. 11 mit angehobenem Magnetelement,

Fig. 13

eine Perspektivansicht der Schneidvorrichtung mit angehobenem Messer,

Fig. 14

die Schneidvorrichtung aus Fig. 13 mit abgesenktem Messer,

Fig. 15

die Schneidvorrichtung in verschwenkter Position,

Fig. 16 ― 24

verschiedene Teildarstellungen als Prinzipdarstellungen zur Erläuterung der Funktion der Schneideinrichtung im Rahmen des getakteten Transports des Materialbands, des Schnitts sowie des Aufnehmens und Abtransportieren eines geschnittenen Streifens,

Fig. 25 - 35

verschiedene prinzipielle Teilansichten der erfindungsgemäßen Vorrichtung nebst erfindungsgemäßer Schneideinrichtung umfassend zwei Greifeinrichtungen zur Erläuterung der Funktionsweise der Schneidvorrichtung respektive Vorrichtung über einen kompletten Arbeitszyklus, wobei der Zyklus an den in den Fig. 16 - 24 gezeigten Arbeitsablauf anschließt,

Fig. 36

eine Prinzipdarstellung zur Erläuterung der Funktion einer erfindungsgemäßen Schneideinrichtung sowie einer erfindungsgemäßen Vorrichtung einer zweiten Ausführungsform,

Fig. 37

die Anordnung aus Fig. 36 in einer Aufsicht,

Fig. 38

eine detailliertere Seitenansicht der Anordnung aus Fig. 36,

Fig. 39

eine Aufsicht auf die Anordnung aus Fig. 37,

Fig. 40

eine Seitenansicht der erfindungsgemäßen Schneideinrichtung der zweiten Ausführungsform,

Fig. 41

eine Detailansicht eines Teils der Bewegungseinrichtung mit Halterung, Drehantrieb, Montageplatte und zwei Greifeinrichtungen,

Fig. 42

eine vergrößerte Detailansicht einer Greifeinrichtung mit abgesenktem Magnetelement,

Fig. 43

die Greifeinrichtung aus Fig. 42 mit angehobenem Magnetelement,

Fig. 44 - 52

verschiedene Teildarstellungen als Prinzipdarstellungen zur Erläuterung der Funktion der Schneideinrichtung der zweiten Ausführungsform im Rahmen des getakteten Transports des Materialbands, des Schnitts sowie des Aufnehmens und Abtransportieren eines geschnittenen Streifens,

Fig. 53 - 63

verschiedene prinzipielle Teilansichten der erfindungsgemäßen Vorrichtung nebst erfindungsgemäßer Schneideinrichtung umfassend zwei Greifeinrichtungen zur Erläuterung der Funktionsweise der Schneidvorrichtung respektive Vorrichtung über einen kompletten Arbeitszyklus, wobei der Zyklus an den in den Fig. 44 - 52 gezeigten Arbeitsablauf anschließt,

Fig. 64

eine Prinzipdarstellung einer Seitenansicht der Vorrichtung der zweiten Ausführungsform unter Darstellung der Bewegungslagerung des Niederhalteelements, und

Fig. 65

eine Aufsicht auf die Vorrichtung aus Fig. 64.

Further advantages and details of the present invention result from the exemplary embodiments described below and from the drawings. show:

1

a schematic diagram to explain the function of a cutting device according to the invention and a device according to the invention,

2

the arrangement 1 in a supervision

3

a more detailed side view of the arrangement 1 ,

4

an oversight of the arrangement 3 ,

figure 5

a side view of the cutting device according to the invention,

6

a top view of the cutting device figure 5 ,

7

a detailed view of part of the movement device with carriage and feed clamping device connected to it,

8

a detailed view of part of the movement device with holder, rotary drive, mounting plate and two gripping devices,

9

the arrangement 8 with a vertically and horizontally shifted gripping device,

10

the arrangement 9 with a hidden gripping device, the gripping device shown being raised vertically,

11

an enlarged detailed view of a gripping device with a lowered magnetic element,

12

the gripping device 11 with raised magnetic element,

13

a perspective view of the cutting device with the knife raised,

14

the cutting device off 13 with lowered knife,

15

the cutting device in a pivoted position,

Fig. 16 - 24

Various partial representations as basic representations to explain the function of the cutting device within the scope of the clocked transport of the material strip, the cut and the picking up and transporting away of a cut strip,

25 - 35

various basic partial views of the device according to the invention together with the cutting device according to the invention comprising two gripping devices to explain the functioning of the cutting device or device over a complete working cycle, the cycle at the in the Figures 16 - 24 follows the workflow shown,

Figure 36

a schematic diagram to explain the function of a cutting device according to the invention and a device according to the invention in a second embodiment,

37

the arrangement Figure 36 in a supervision

38

a more detailed side view of the arrangement Figure 36 ,

Figure 39

an oversight of the arrangement 37 ,

figure 40

a side view of the cutting device according to the invention of the second embodiment,

Figure 41

a detailed view of part of the movement device with holder, rotary drive, mounting plate and two gripping devices,

Figure 42

an enlarged detailed view of a gripping device with a lowered magnetic element,

Figure 43

the gripping device Figure 42 with raised magnetic element,

44 - 52

Various partial representations as basic representations to explain the function of the cutting device of the second embodiment in the context of the clocked transport of Material strips, the cut and the picking up and transporting away of a cut strip,

53 - 63

various basic partial views of the device according to the invention together with the cutting device according to the invention comprising two gripping devices to explain the functioning of the cutting device or device over a complete working cycle, the cycle at the in the 44 - 52 follows the workflow shown,

Figure 64

a schematic representation of a side view of the device of the second embodiment showing the movement bearing of the hold-down element, and

Figure 65

a top view of the device Figure 64 .

1 shows in the form of a schematic representation a device according to the invention for producing and processing strips 2 of a material strip 3 and the device 1 comprises a cutting device 4 for this purpose, which is used to cut the strips 2 from the material strip 3. The cutting device 4 comprises at least one gripping device 5, which serves, among other things, to pick up and transport a cut strip 2 to a downstream pick-up device 6, where the individual strips 2 are deposited on a preferably foil-like carrier 7. The receiving device 6 can also have a winding device (not shown in detail) for winding the occupied carrier into a roll or spool, from which the individual strips are unwound again in a downstream processing device.

The material strip 3 is an endless strip consisting of an upper layer 3a and a lower layer 3b made of a rubber strip as well as elements 8 that can be magnetically coupled or embedded between them, preferably RFID chips, alternatively metal strips or magnets. dashed the cutting lines 9 running obliquely here, along which the material strip 3 is cut to form the strips 2, are shown.

The cutting device 4, which has a cutting blade 10 which, as the double arrow 11 shows, can be moved linearly relative to the material strip 3, is used for this purpose. As indicated, the cutting blade 10 is between the solid oblique position according to FIG 1 can be pivoted into a vertical position shown in dashed lines, as indicated by the double arrow 12 . The cutting angle can therefore be varied via this. The pivoting takes place about a pivot axis 13 which preferably coincides with the cutting line on a knife table 14 on which the material strip 3 lies during the cut and which is defined by the cutting edge 15 of the cutting knife 10 in the final cutting position. The knife table 14 has a corresponding support 16, preferably made of a material that does not adhere to the material strip 3, which is often sticky.

As stated, a gripping device 5 is also provided, comprising on the one hand a hold-down section 17, which fixes the material strip on the knife table 14 during the cut, and a magnetic element 18, which magnetically couples to an element 8 of the material strip 3 located directly below, so that the cut strip 2 is magnetically connected to the gripping device 5 or the hold-down section 17 and can be transported away via the gripping device 5 . The magnetic element 18, which can be a magnetic strip containing several individual magnets, can be pivoted, as shown by the double arrow 19, and can be brought from a non-working position into a coupling position in which it is vertically above the element 8. In any case, the gripping device 5 itself can be moved vertically, as shown by the arrow 20 . The arrow 21 indicates that the raised gripping device 5 can be rotated about a vertical axis in a horizontal plane, while the arrow 22 indicates that a horizontal movement of the gripping device 5 can also take place. The individual degrees of freedom of movement are described in detail below.

Since the strip 2 is very narrow and, for example, only has a width of preferably 8 to 15 mm with a possible length of e.g. 70 to 80 mm, it is necessary to hold the material strip 3 with its leading end on the knife table 14 during the cut fix, so that it is prevented that the material strip 3 moves during the cut and no exact, continuous cutting is possible. Since, due to the small width of the strips 2 to be cut, the cut must inevitably be made very close to the free end of the material strip 3, but at the same time the material strip 3 must be fixed over a larger area, the hold-down section 17 has a recess 23 in the form of an elongated slot provided, through which the knife 10 cuts. This configuration of the hold-down section 17 makes it possible to fix and hold down the material strip 3 flatly in front of and behind the actual cutting line or the cut, as seen in the transport direction, so that any movement of the material strip 3 is prevented both when the cutting blade 10 is inserted and pulled out. This means that the cutting blade 10 cuts through the hold-down section 17 and, on the one hand, the material strip 3 is securely fixed, but on the other hand, cutting through the hold-down section 17 also allows the very narrow strip to be cut and held down.

2 shows a top view of the basic arrangement 1 . For the sake of clarity, the cutting blade 10 is not shown here, nor is the hold-down section 17.

Shown is the strip of material 3 with the embedded elements 8 or RFID chips shown in dashed lines, with the intended cutting lines 9 also being shown here.

Also shown is the recess 23 in the form of the elongated slot, which is longer than the width of the strip of material 3 , with the cutting blade 10 or the cutting edge 15 of course also being wider than the strip of material 3 . Only the cutting blade 10 and the pivot axis are shown in principle 13, which, as described, coincides with the cutting line on the knife table 14, whereby after an oblique cut is made here (starting from 1 ) the imaginary cutting line 9 on the upper side of the material strip 3 is, of course, angularly offset relative to the cutting line.

Also shown is the magnetic element 18, which is shown here in the form of two separate individual magnets 24 and which is arranged exactly above an element 8 on the hinge side in the coupling position.

Also shown is the already in 1 The strip 2 shown is cut and transported away, which, since it was moved into the storage position by a rotational movement of the gripping device 5, is rotated by 180° in relation to the alignment of the strip 2 that was cut immediately. The embedded element 8 is also shown here.

the Figures 3 and 4 show a section of the device according to the invention in a more detailed form in a side view and a plan view, with two gripping devices 5 being provided here, which are designated by A and B, as also in the following.

The basic illustration shows the cutting device 1, which here has a transport means 25 in the form of a conveyor belt, to which a feed device 26, for example a clamping unit, which, see the double arrows 27, 28, can be moved together for clamping and can be moved horizontally for displacement, is assigned is. This feed device 26 is assigned to the upper run 29 of the transport means 25 here. The material strip 3 rests on the transport means 25. The conveyor belt ends adjacent to but at a distance from the blade table 14. To bridge the gap between the transport means 25 and the blade table 14, a transfer table 30 is provided, over which the material strip 3 is guided.

Also shown in principle is the cutting blade 10, which is in the cutting position here and the corresponding recess 23 in the Hold-down section 17 passes through. The hold-down section 17 is lowered onto the material strip 3 and clamps it onto the blade table 14. The magnetic element 18 couples to the strip-side element 8. If the cutting blade 10 is moved back, the gripping device can lift the cut strip 2 and transport it away.

As described, two gripping devices 5, labeled A and B here, are provided here. These can be moved in several degrees of freedom with a corresponding movement device 31, as in principle in FIGS Figures 3 and 4 shown. The two gripping devices 5 or A, B are connected to the movement device 31 and, as shown by the double arrow 32, can be lifted vertically on the one hand and, on the other hand, rotated by 180°, as shown by the arrow 21, so that the position of the gripping devices A, B can be swapped. The gripping device B shown here in the direction of the storage position (the same also applies to the gripping device A) can also be moved horizontally, as shown by the arrow 22, in order to approach the final storage position.

The exact workflow is described below in relation to the figures 16 ff. described.

the Figures 5 and 6 show a side view and a top view of the cutting device 4. This includes a device frame 33 on which the transport means 25 is arranged on the one hand, which conveys in the transport direction, as shown by the arrow 34. The cutting device 35 comprising the cutting knife 10 and the knife table 14 as well as the moving device 31 and the two gripping devices 5 or A, B is also arranged on the device frame 33 .

As described, the cutting blade 10 can be pivoted, as indicated by the double arrow 12 in 1 , but also in figure 5 , is indicated. For this purpose, the cutting device 5 is guided on a mounting plate 36, which has corresponding elongated holes 37, and on it at the set angle fixable. The detailed structure of the cutting device 35 is described below.

6 FIG. 12 further shows magnetic means 38 arranged below the upper run 29 of the transport means 25, which are arranged centrally in a line and which interact magnetically with the elements 8 which are also arranged centrally on the conveyor belt 3. The material strip 3 is secured against slipping on the transport means 25 by means of these positionally fixed magnetic means 38 .

7 shows part of the movement device 31. The movement device 31 and with it the one or the two gripping devices 5 or A, B are arranged on the device frame 33 so that they can be displaced horizontally and linearly. For this purpose, a carriage 39 is provided which has corresponding linear guide elements 40 which are connected to a corresponding linear guide on the device frame 33 so that, as represented by the double arrow 41, the carriage 39 together with the entire structure can be moved horizontally thereon. This horizontal movement according to the double arrow 41 is used for the clocked feed of the material strip 3, which will be discussed below.

7 1 also shows that the feed device 26, which serves to feed the transport means 25, is fastened to the carriage 39. Two clamping jaws 43 are arranged on a holding arm 42, between which the transport means 25 is accommodated, the upper clamping jaw 43 being movable via an actuating cylinder 44 against the lower clamping jaw 43, so that the transport means 25 located between them is clamped. If the carriage 39 now moves along the arrow 41, the transport means 25 and with it the material strip 3 are inevitably also shifted by the clock. After releasing the jamming, the carriage 39 together with the feed device 26 can move back at a given time, and a new feed cycle can begin.

Furthermore, a vertical linear guide 45 is provided on the carriage 39, on which a holder (see Fig Figures 11 - 13 ) as shown by the double arrow 46 is vertically movable. At this Holder, which is of course also part of the movement device 31, a number of other operating elements are arranged, which can be moved here vertically, but at the same time on the carriage 39 horizontally.

An actuating element 47 in the form of a cylinder is provided for this vertical movement, one end of which is fixed to the carriage 39 and the other, movable end of which is connected to a pivoting lever 48 which can be pivoted about a pivot axis 49 . The other end of the pivoting lever 48 is, as will be discussed below, connected to the holder, which is guided on the linear guide 45, so that a pivoting of the pivoting lever 48 inevitably leads to a vertical movement of the holder. The vertical movement is limited by corresponding stops 50.

the figures 8 - 10 show the assemblies arranged to be vertically displaceable on the carriage via the linear guide 45. On the one hand, the holder 51 already described is shown, on the rear side of which, not shown here, corresponding guide elements are provided, which are accommodated on the linear guide 45 . At the lower end of the holder 51 there is a corresponding bearing block 52 on which a bearing pin 53 is provided which passes through a bearing eye 54 on the pivoting lever 48 . When the pivoting lever 48 is pivoted, the holder 51 together with all attachments is moved vertically via this connection.

A rotary drive 54 is arranged on the holder 51 and has a drive shaft 55 on which, see 10 , a mounting plate 56 is attached via a suitable mounting flange. On the mounting plate 56, the two gripping devices 5, respectively A, and 5, respectively B are constructed.

On the mounting plate 56 is a linear guide element 57, which allows a horizontal linear guide for a horizontal displacement of the respective gripping element 5 or A, B, which then has a corresponding Linear guide element 58 is added linearly guided. Each gripping device 5 or A, B can be moved horizontally separately via this.

In addition, each gripping device 5, A, B can be adjusted vertically via a vertical adjusting device 59 for a corresponding vertical movement. That is, each gripping device 5, A, B can be raised separately and vertically, as well as being slid horizontally.

8 shows the two gripping devices 5 or A, B on the one hand in the vertically lowered position and on the other hand in the horizontally retracted position. In 9 the gripping device B is shown vertically raised on the one hand and moved horizontally on the other hand, while in 10 , where only the gripping device A is shown, this is only shown raised vertically.

As described, the mounting plate 56 carries all of the components mounted thereon. Since the mounting plate 56 is seated on the drive shaft 55 of the rotary drive 54, the mounting plate 56 together with all structural elements can consequently about a vertical axis 60, as in FIGS figures 8 ― 10 shown, rotated to the rotational movement (see double arrow 21 in 4 ) to obtain.

the Figures 11 and 12 show a gripping device 5 in detail, the design being identical for each gripping device A, B. The gripping device 5 has a housing 61 with a base 62 , a hold-down plate 63 being arranged on the housing 61 or the base 62 and running with its underside flush with the underside of the base 22 . Between the housing 61 and the hold-down plate 63, the already described recess 23 is formed in the form of the elongated slot through which the cutting blade 10 makes the cut. The underside of the floor 62 and the hold-down plate 63 form the hold-down section 17.

In the interior of the housing, the magnet element 18 is arranged here with the two magnets 24 such that it can be pivoted about a pivot axis 64 . It can be in accordance with a lowered coupling position 11 , in which it is connected to the hinge-side Element 8, so the RFID chip, can magnetically couple, and according to a raised non-working position 12 be pivoted. An actuating element 65 is used for this purpose, again in the form of a pneumatically, hydraulically or electrically operating actuating cylinder, which is coupled to a corresponding pivoted lever 66 on which the magnetic element 18 is arranged. This means that the magnetic element 18 can be placed on the base 62 via this actuating element 65 and brought into magnetic coupling with the hinge-side element 8, so that after the cut has been made, the strip running below the base 62 and the holding-down plate 63 is magnetically attached fixed to the underside of this hold-down section 17 and can be transported away by moving the gripping device 5 . The underside of the base 62 or an underside section and the underside of the hold-down plate 63 lie flat on the material strip 3 in the hold-down position, i.e. form the actual hold-down section 17.

The housing 61 is provided with a corresponding fastening section 67, via which it can be attached to the vertical adjusting device 59 (see Fig Figures 8 - 10 ) can be attached.

the Figures 13 - 15 finally show perspective views of the cutting device 35. This includes the cutting blade 10, which is arranged on a blade carrier 67, which in turn is arranged linearly movable via a corresponding linear guide element 68 on a linear guide 69 of a plate-shaped holder 70. Here, too, an actuating element 71 in the form of a pneumatically, hydraulically or electrically operating actuating cylinder is provided for the linear movement. Accordingly, the cutting blade 10, which is, for example, an ultrasonic blade, can be moved from the raised non-working position according to FIG 13 into the in 14 cutting position shown can be moved.

The plate-shaped holder 70 is pivotable about a pivot axis 72, which is horizontal and perpendicular to the belt conveying direction 34, on the blade table 14, which is designed here like a yoke, arranged. This enables pivoting the cutting device 35 according to the double arrow 12 from the figures 1 or 5.

The fixation in the desired position takes place via suitable clamping screws, which are guided through the corresponding guide grooves 37 and screwed into corresponding bores 73 on the plate-shaped holder 70 . A pivoting position relative to the Figures 13 and 14 positions shown, in which the cutting blade 10 is vertical, is in 15 shown. The swivel angle is, for example, 45° - 90° in relation to the horizontal plane.

the Figures 16 - 24 show in the form of corresponding schematic representations the mode of operation of the cutting device according to the invention on the one hand in the context of the tape transport, on the other hand in the context of the actual cutting process, while the following Figures 25 - 35 show the way of working, including removal, over an entire work cycle.

is shown in 16 the strip of material 3 in its position after a previous cut. Consequently, it is not yet in the cutting position, into which it must first be transported. The gripping device 5, which is marked here as a gripping device A, after in the figures 25 ff. the second gripping device B is also shown, is in a position above the knife table 14, the hold-down section 17, formed by the underside of the hold-down plate 63 and the bottom 62, being positioned above the material strip 3. The magnetic element 18 is pivoted upwards, the cutting knife 10 is removed to the gripping device 5, A.

In the next, in 17 In the step shown, the gripping device 5, A is lowered, as indicated by the arrow 74. The hold-down section 17 now rests on the strip of material 3 .

In the next, in 18 In the step shown, the magnetic element 18 is pivoted downwards via the actuating element 65 so that it rests on the floor 62 in the housing 61 . It is located as 18 clearly shows, exactly vertically above the band edge 75 closest element 8, with which it in this position, albeit separated by floor 62, immediately magnetically couples. This element 8 is later included in the actual strip that has been cut off; the strip is fixed to the hold-down section 17 via the element 8 .

In the next step, as shown by the arrow 76, the gripping device 5, A is raised. Simultaneously, the transfer table 30 is also raised, as indicated by the arrow 77. The transfer table 30 is pivotably mounted with its end facing in the transport means 25, which means that the end adjacent to the blade table 14 can be raised. A kind of ramp is thus formed, which lifts the front end of the material strip 3 at the same time as the gripping device 5, A.

As 19 shows, the end of the transfer table 30 adjacent to the knife table 14 is provided with a chamfer 78, a shape-compatible chamfer 79 is also provided on the support 16 of the knife table 14, both lie, see 18 , adjacent in the lowered position.

The actual feed is carried out in the next step. First, the feed device 26 jams (see 7 ) the means of transport 25. Immediately afterwards, the horizontal displacement of the carriage 39 takes place via the corresponding carriage drive or actuating cylinder, which means that on the one hand the means of transport 25 is carried along by the displacement distance due to the clamping of the feed device 26. On the other hand, the gripping device 5 or A is also simultaneously moved in the transport direction by exactly the carriage displacement distance. As a result, the strip of material 3 is shifted by exactly the required horizontal feed length, which corresponds exactly to the width of the strip 2 to be cut. This linear feed movement is indicated by the arrows 80 in 20 shown.

In the next following, in 21 shown step, the gripping device 5, A is lowered again so that the material strip 3 is back on the knife table 14 is discarded. This movement is represented by arrow 81. At the same time, the transfer table 30 is pivoted back down, as shown by the arrow 82 . The material strip 3 is now in the cutting position.

Now done, behold 22 , the cut. The cutting knife 10 is moved through the recess 23 against the strip of material 3 until it stops against the support 16 of the knife table 14, so that the strip 2 is completely cut off. Here, the strip of material 3 and the strip 2 that is then cut are fixed both in front of and behind the cutting line completely over the entire contact surface with which the hold-down section 17 rests on the strip of material 3, so that even the slightest movement of the strip of material 3 is excluded . The knife movement is represented by the arrow 83.

This fixation also remains during the time in which the cutting blade 10 again, see arrow 84 in 23 , is withdrawn, received. The cutting process is now complete, strip 2 has been cut off and separated.

In the following, in 24 The step shown, the gripping device 5, A is raised again, as shown by the arrow 85. As can be seen, the cut strip 2 is fixed on the underside on the gripping device 5, ie on the hold-down section 17, as a result of the magnetic interaction of the magnetic element 18 with the strip-side element 8 and can therefore also be transported away.

The horizontal movement of the gripping device 5 performed with respect to the feed of the material strip 3 is brought about by the horizontal displacement of the carriage 39 . The raising and lowering of the magnetically coupled end of the tape as part of the feed, such as the figures 17 and 21 described, takes place by the vertical raising and lowering of the holder 51, which is guided on the carriage 39 in the linear guide 45. The vertical movement of the gripping device 5 for lifting the cut strip 2, as for 24 described, is carried out by the vertical adjusting device 59, on which the gripping device 5 is seated directly.

the Figures 25 - 35 then show the further operations of the device according to the invention, as per the step according to 24 connect. The device 1 is shown in the schematic representations, after the receiving device 6 (also here without an optional winding device) is also shown here, at least in principle.

Shown is on the one hand already to the Figures 15-24 described gripping device A, which is already in the 24 known position in which the strip 2 is picked up and the gripping device A is raised. Also shown is the second gripping device B, which is rotated away from the knife table 14 because it is offset by 180° to the gripping device A on the mounting plate 56 . The gripping device B has already deposited the strip 2 transported via it to the receiving device 6 on this. It has already been moved somewhat out of the actual storage area, for which purpose the receiving device 6 has a corresponding transport device, by means of which the carrier 7 together with the strip 2 can be moved. Also shown is the basic movement device 33, which is shown in FIGS figures 7 ― 10 shown elements, except for the two gripping devices A and B, includes.

As 26 shows, in the next step the two gripping devices A, B are rotated about the axis of rotation 60 (see 8 ) is rotated via the rotating device 54 so that the gripping device B is located above the material strip 3 that is not yet in the cutting position, while the gripping device A with the cut strip 2 is rotated towards the receiving device 6 . At the same time, see the arrow 86, the carriage 39 and with it all the elements of the movement device 31 arranged thereon, including the two gripping devices A, B, are retracted counter to the transport direction. As a result of the connection of the opened feed device 26 to the carriage 39, see arrow 87, the feed device 26 is also moved back again.

In the next step, see 27 , moves on the one hand the gripping device A, as shown by the arrow 88, on the horizontal linear guide formed on the Guide elements 57, 58 in the direction of the receiving device 6. However, it is not yet in the final storage position.

At the same time, on the other hand, the gripping device B moves vertically downwards, see arrow 89 , which takes place via the vertical adjusting device 59 , so that the hold-down section 17 of the gripping device B is lowered onto the material strip 3 . At the same time, the feed device 26 closes again and clamps the transport means 25.

in 28 The following step shown, the magnetic element 18 of the gripping device B, as shown by the arrow 90, brought back down into the actual magnetic coupling position to the element 8 on the belt. This means that the front end of the belt is now magnetically connected to the gripping device B again.

in 29 The step shown is lifted via the adjusting element 47 the holder 51 and thus the entire structure including the two gripping devices A, B, as indicated by the arrow 91 in 29 shown. The holder 51 is moved upwards on the linear guide 45 . At the same time, the transfer table 30, as indicated by arrow 92, is also raised. These two simultaneous movements cause the front end of the material strip 3, which is magnetically attached to the gripping device B, to be lifted.

In the next step according to 30 the carriage 39 is in turn shifted horizontally via its associated actuating element, as indicated by the arrow 92. The actual clocked tape feed takes place, in which on the one hand the transport means 25 is moved in the transport direction 34 via the clamped feed device 26, while at the same time the two gripping devices A and B are also moved by exactly this displacement distance, which corresponds exactly to the width of the strip 2 to be cut will. On the one hand, this movement causes the gripping device A to be positioned exactly in the storage position above the receiving device 6 .

On the other hand, the gripping device B, and with it the end of the strip, is brought exactly into the cutting position above the knife table 14.

In the next following, in 31 The step shown is in turn lowered the holder 51 and with it all attachments located thereon, ie also the two gripping devices A, B, which means that the actuating element 47 moves the holder 51 on the linear guide 45 downwards again. This is indicated by the arrow 93 in 31 shown. This lifting movement is small, for example it is only a few millimeters. However, it is sufficient for the gripping device B to be lowered far enough for the material strip 3 to be placed on the knife table 14 and quasi clamped there. At the same time, of course, the transfer table 30 is also swiveled away, as shown by the arrow 94 . Consequently, the strip of material 3 is now in the cutting position for the next cut.

Also simultaneously with this, the jamming of the feed device 26 is released, and the transport means 25 is released again.

As described, the vertical adjusting movement that can be achieved via the holder 51 is only relatively small. However, the gripping device A is located further away from the receiving device 6 than the stroke of this lifting movement according to arrow 93 takes place. In order to finally be able to deposit the cut strip 2 , the gripping device A, see arrow 96 , is finally moved via the vertical adjusting device 59 into the depositing position in which the strip 2 rests on the carrier 7 . In this position, the strip 2 is located exactly above a magnetic element 97 which is arranged underneath the carrier 5 and which magnetically fixes the element 8 in the strip 2 and thus the strip 2 itself.

In the next following, in 32 In the step shown, the actual cut now takes place, the knife 10 cuts through the recess 23 in the hold-down section 17, as shown by the arrow 98, so that the new strip 2 is separated.

At the same time, the gripping device A pivots the magnetic element 18 upwards again, as shown by the arrow 99 . The magnetic coupling of the magnetic element 18 to the element 8 on the strip side is canceled; this is now only magnetically coupled to the magnetic element 97 of the receiving device 6 .

in the in Figure 33 In the next step shown, the cutting blade 10 then moves back again, as shown by the arrow 100, but the gripping device B still rests on the material strip 3 and the strip 2 and both are still fixed. The magnetic element 18 is still in the pivoted position.

When the cutting blade 10 is moved out, the gripping device A is also raised again, as shown by the arrow 101 . This lifting movement is brought about by the vertical adjustment device 59 .

In the following step according to Figure 33 the gripping device B also moves vertically upwards again, as shown by the arrow 102, this vertical movement also being effected via the vertical positioning device 59 of the gripping device B. As can be seen, the cut strip 2 is still coupled to the hold-down section 17 via the magnetic element 18 .

At the same time, the gripping device A moves, as shown by the arrow 103, along the horizontal linear guide, formed by the guide elements 57, 58, back to the starting position, i.e. it moves away from the receiving device 6. In the next step, which now follows, the rotary drive 54 rotation in the horizontal plane is effected again, so that the "empty" gripping device A is again rotated over the material strip 3 or the knife table 14, while the gripping device B with the previously cut strip 2 is rotated back to the receiving device 6. Arrow 104 shows this. At the same time, however, the carriage 39 also moves, see arrow 105, and with it, of course, all the add-on parts including the gripping devices A, B again in the opposite direction to the transport direction in order to subsequently initiate a new cycle. Together with the carriage 39 is also the opened feed device 26 retracted again, as shown by the arrow 106.

Furthermore, the receiving device 6 now carries out the clocked transport of the carrier 7 together with the strips 2 arranged on it in order to release the actual depositing position again, see arrow 107.

A new cycle can now begin, as described above with reference to FIG figures 16 ff. described.

As described, the carrier 7 can be a film. Alternatively, however, it can also be a blister or a box or the like.

Furthermore, the recording device 6 can also include a detection device, for example a camera system, which detects and continuously checks the placement position in order to be able to adjust the individual adjustment movements within the overall system if necessary. Any faulty strips can also be identified and marked as rejects. As a result, incorrect cuts can be removed from the subsequent processing chain and an uninterrupted work chain with precisely cut strips of the required quality can be guaranteed.

The following Figures 36 - 65 show in the form of schematic representations a cutting device or device according to the invention of a second embodiment or the second alternative according to the invention. The cutting device or the device differs from the cutting device or device described above primarily in that, in addition to the gripping device, a further separate hold-down element is provided, as well as a somewhat different procedural sequence. Reference is therefore made in principle to the above statements, which, unless otherwise described below, expressly also apply to this second alternative embodiment, which is the essential elements of cutting device is concerned. The same reference numbers are also used for the same components as far as possible.

Figure 36 shows in the form of a schematic representation a device according to the invention of the second embodiment for the production and processing of strips 2 of a material strip 3 and the device 1 comprises a cutting device 4 for this purpose, which is used to cut the strips 2 from the material strip 3. The cutting device 4 comprises at least one gripping device 5, which serves, among other things, to pick up and transport a cut strip 2 to a downstream pick-up device 6, where the individual strips 2 are deposited on a preferably foil-like carrier 7. The receiving device 6 can also have a winding device (not shown in detail) for winding the occupied carrier into a roll or spool, from which the individual strips are unwound again in a downstream processing device.

Here, too, the material strip 3 is an endless strip consisting of an upper layer 3a and a lower layer 3b made of a rubber strip and magnetically coupleable elements 8, preferably RFID chips, alternatively metal strips or magnets, accommodated or embedded in between. The cutting lines 9 running obliquely here, along which the material strip 3 is cut to form the strips 2, are shown in dashed lines.

The cutting device 4, which has a cutting blade 10 which, as shown by the arrow 11, can be moved linearly relative to the material strip 3, is used for this purpose. As indicated, the cutting blade 10 is between the solid oblique position according to FIG 1 can be pivoted into a vertical position shown in dashed lines, as indicated by the double arrow 12 . The cutting angle can therefore be varied via this. The pivoting takes place about a pivot axis 13 which preferably coincides with the cutting line on a knife table 14 on which the material strip 3 lies during the cut and which is defined by the cutting edge 15 of the cutting knife 10 in the final cutting position. The knife table 14 has a corresponding Pad 16 is preferably made of a material that does not adhere to the material strip 3, which is often sticky.

As stated, a gripping device 5 is also provided, comprising on the one hand a hold-down section 17, which fixes the material strip on the knife table 14 during the cut, and a magnetic element 18, which magnetically couples to an element 8 of the material strip 3 located directly below, so that the cut strip 2 is magnetically connected to the gripping device 5 or the hold-down section 17 and can be transported away via the gripping device 5 . However, the hold-down section 17 here is significantly shorter than in the first embodiment. The magnetic element 18, which can be a magnetic strip containing several individual magnets, can be pivoted, as shown by the double arrow 19, and can be brought from a non-working position into a coupling position in which it is vertically above the element 8. In any case, the gripping device 5 itself can be moved vertically, as shown by the arrow 20 . The arrow 21 indicates that the raised gripping device 5 can be rotated about a vertical axis in a horizontal plane, while the arrow 22 indicates that a horizontal movement of the gripping device 5 can also take place. The individual degrees of freedom of movement are described in detail below.

Also provided is a hold-down element 110, which is arranged in front of the gripping section, viewed in the conveying direction of the material strip 3, and which is between a raised position, as in FIG Figure 36 shown, and movable to a lowered position onto the web of material, as illustrated by double-headed arrow 111. The strip of material can also be held down via this in addition to the hold-down section 17 . As can be seen, the hold-down element 110 is arranged at a distance from the hold-down section 17, so that there is a free space 112 between the two, into which the cutting blade 10 can enter. The hold-down element 110 is designed here as a pivotable flap 113, but can also be a linearly movable bar.

Since the strip 2 is very narrow and, for example, only has a width of preferably 8 to 15 mm with a possible length of e.g. 70 to 80 mm, it is necessary to hold the material strip 3 with its leading end on the knife table 14 during the cut fix, so that it is prevented that the material strip 3 moves during the cut and no exact, continuous cutting is possible. Since, due to the small width of the strip 2 to be cut, the cut must inevitably be made very close to the free end of the material strip 3, but at the same time the material strip 3 must be fixed over a larger area, in this embodiment the material strip is fixed by means of the hold-down section 17 and the hold-down element 110 to form the clearance 112 in the form of an elongated slot through which the knife 10 cuts. The arrangement of the separate hold-down components makes it possible to fix and hold down the material strip 3 in front of and behind the actual cutting line or the cut, as seen in the transport direction, so that any movement of the material strip 3 is prevented both when the cutting blade 10 is inserted and pulled out.

37 shows a top view of the basic arrangement 1 . For the sake of clarity, the cutting blade 10 is not shown here, nor is the hold-down section 17.

Shown is similar to in 2 , the strip of material 3 with the embedded elements 8 or RFID chips shown in dashed lines, the intended cutting lines 9 also being shown here. Also shown is the free space 112 in the form of the elongated slot, which is longer than the width of the strip of material 3 , with the cutting blade 10 shown in principle or the cutting edge 15 of course also being wider than the strip of material 3 .

Also shown is the magnet element 18, which is shown here in the form of two separate individual magnets 24 and which is arranged exactly above an element 8 on the belt side in the coupling position, as well as the cut and transported away, rotated strip 2.

the Figures 38 and 39 show a section of the device according to the invention in a more detailed form in a side view and a plan view, with two gripping devices 5 being provided here, which are designated by A and B, as also in the following.

The basic illustration shows the cutting device 1 with the transport means 25 in the form of a conveyor belt and the feed device 26, for example a clamping unit. The material strip 3 rests on the transport means 25. The conveyor belt ends adjacent to, but at a distance from, the knife table 14. To bridge the gap between the transport means 25 and knife table 14, a transfer table 30 is provided, over which the strip of material 3 is guided.

Also shown in principle is the cutting knife 10 , which is in the cutting position here and lies in the free space 112 . The hold-down section 17 and the flap-like hold-down element 110 are lowered onto the material strip 3 and clamp it onto the knife table 14. The magnetic element 18 couples to the strip-side element 8.

As described, two gripping devices 5, labeled A and B here, are provided here. These can be moved in several degrees of freedom with a corresponding movement device 31, as in principle in FIGS Figures 38 and 39 shown. On the remarks on the Figures 3 and 4 , which apply equally to the second embodiment, is referred to.

The exact workflow is described below in relation to the Figures 44 ff. described.

the figure 40 shows a side view of the cutting device 4. This includes a device frame 33 on which the transport means 25 is arranged on the one hand, which conveys in the transport direction, as shown by the arrow 34. Furthermore, the cutting device 35 comprising the device frame 33 is located Cutting blade 10 and the blade table 14 and the movement device 31 and the two gripping devices 5 and A, B respectively. Likewise, the hold-down element 110, which can be pivoted here, is arranged on the equipment frame or a carrier arranged thereon.

For further details, please refer to the comments on the Figures 5 and 6 referenced, which apply equally to the present second embodiment.

With regard to the movement device 31, its structure and its function, reference is made to the illustration in 7 as well as the detailed explanations 7 referenced, which also apply equally to the second embodiment. This is because the design of the movement device 31 and the basic movement of the individual components of the second embodiment which are coupled to the movement device 31 or are moved via it correspond to those described for the first embodiment. Only the timing of the movement of the cutting blade 10 for lifting after the cut relative to the movement of the gripping device 5, A, B for lifting together with the strip is different, which will be discussed below, as well as the movement of the separate hold-down element 110.

the Figures 41 - 43 show the subassemblies that are vertically displaceable on the carriage via the linear guide 45 ( Fig, 41 ) and in detail the gripping device 5 or A, B ( 42, 43 ). The structure and function of the in Figure 41 Arrangement shown or the assemblies and their guides and movement corresponds exactly to what the 8 - 10 is shown and described for the first embodiment, which is why reference is made to the explanations there, which apply in the same way to the Figure 41 arrangement shown apply. The only thing that is slightly different here is the design of the respective gripping devices 5 or A, B, as will be described below. A gripping device 5, A, B is detailed in the 42, 43 shown.

the Figures 42 and 43 show a gripping device 5 in detail, the design being identical for each gripping device A, B. The gripping device 5 has a housing 61 with a base 62, the base 62 or its underside forming the hold-down section 17. The gripping device 5 or the housing 61 sits on the material strip 3 with the underside of the base, ie the hold-down section 17, in order to fix it. As can be seen, the base 62 or the housing ends almost flush with the magnetic elements 18 lowered to grip the strip 2, the front edge of the base 62 delimiting the free space 112 into which the cutting blade 10 dips. A hold-down plate as in the first embodiment is not provided here.

In the interior of the housing, the magnet element 18 is arranged here with the two magnets 24 such that it can be pivoted about a pivot axis 64 . They can be swung into the two open windows 114 on the front side of the housing, which are provided directly above the front edge of the base 62, so that they extend almost as far as the base edge and in the lowered coupling position according to FIG Figure 42 magnetically couple with the hinge-side element 8, ie the RFID chip. An actuating element 65 in the form of a pneumatically, hydraulically or electrically operating actuating cylinder, which is coupled to a corresponding pivoting lever 66 on which the magnetic element 18 is arranged, is used for pivoting. This means that, if necessary, the magnetic element 18 can be placed on the base 62 via this actuating element 65 and brought into a magnetic coupling with the element 8 on the belt side, so that after the cut has been made, the strip running below the base 62 forming the hold-down section is magnetically attached to the Fixed underside of this hold-down section 17 and can be transported away by a movement of the gripping device 5.

With regard to the design and function of the cutting device 35, reference is made to the comments on the Figures 13 - 15 referred to the first embodiment, which also apply in the same way to the cutting device 35 of the second embodiment, both in terms of the structure or the individual components and their function, and the corresponding mobility of the components of the cutting device 35 etc.

the Figures 44 - 52 show in the form of corresponding schematic representations the mode of operation of the cutting device according to the invention of the second embodiment on the one hand in the context of the tape transport, on the other hand in the context of the actual cutting process, while the following Figures 53 - 63 show the way of working, including removal, over an entire work cycle.

is shown in Figure 44 the strip of material 3 in its position after a previous cut. Consequently, it is not yet in the cutting position, into which it must first be transported. The gripping device 5, which is marked here as a gripping device A, after in the Figures 53 ff. The second gripping device B is also shown, is in a position above the knife table 14, the hold-down section 17, formed by the underside of the base 62, being positioned above the material strip 3. The magnetic element 18 is pivoted upwards, the cutting blade 10 is removed from the gripping device 5, A. The flap-like hold-down element 110 is in the raised position, i.e. also removed from the material strip 3

In the next, in Figure 45 In the step shown, the gripping device 5, A is lowered, as indicated by the arrow 74. The hold-down section 17 now rests on the strip of material 3 . As can be seen, the front edge of the floor 62 or the front of the housing 61 is positioned closely adjacent to the front edge 115 of the hold-down element 110 .

In the next, in Figure 46 In the step shown, the magnetic element 18 is pivoted downwards via the actuating element 65 so that it rests on the floor 62 in the housing 61 . It is located as Figure 46 clearly shows, exactly vertically above the element 8 closest to the strip edge 75, with which it is immediately magnetically coupled in this position, albeit separated by the floor 62. This element 8 is later included in the actual strip that has been cut off; the strip is fixed to the hold-down section 17 via the element 8 . As can be seen, the magnetic element 18 in this position lies directly on the front side of the housing 61 and ends almost vertically above the front edge 116 of the bottom 62, the magnets 24 are virtually in the windows 114. The hold-down element 110 is still raised.

In the next step according to figure 47 is, as shown by the arrow 76, the gripping device 5, A raised. Simultaneously, the transfer table 30 is also raised, as indicated by the arrow 77. The transfer table 30 is pivotably mounted with its end facing in the transport means 25, which means that the end adjacent to the blade table 14 can be raised. A kind of ramp is thus formed, which lifts the front end of the material strip 3 at the same time as the gripping device 5, A. Although the strip of material 3 is lifted somewhat, it is still somewhat spaced from the edge 115 of the hold-down element 110 .

As Figure 47 shows, the end of the transfer table 30 adjacent to the knife table 14 is provided with a chamfer 78, a shape-compatible chamfer 79 is also provided on the support 16 of the knife table 14, both lie, see 18 , adjacent in the lowered position.

In the next step, see Figure 48 , the actual feed is carried out. First, the feed device 26 jams (see 7 ) the means of transport 25. Immediately afterwards, the horizontal displacement of the carriage 39 takes place via the corresponding carriage drive or actuating cylinder, which means that on the one hand the means of transport 25 is carried along by the displacement distance due to the clamping of the feed device 26. On the other hand, the gripping device 5 or A is also simultaneously moved in the transport direction by exactly the carriage displacement distance. As a result, the strip of material 3 is shifted by exactly the required horizontal feed length, which corresponds exactly to the width of the strip 2 to be cut. This linear feed movement is indicated by the arrows 80 in 20 shown. As can be seen, the gripping device 5 moves away from the pivotable but fixed hold-down element 110 in the direction of tape transport, and the distance increases.

In the next following, in Figure 49 The step shown, the gripping device 5, A is lowered again, so that the material strip 3 is placed back on the knife table 14. This movement is represented by arrow 81. At the same time, the transfer table 30 is pivoted back down, as shown by the arrow 82 . The material strip 3 is now in the cutting position. At the same time, the hold-down element 110 is also lowered, so that it or its edge 115 rests in a quasi-linear manner on the material strip 3 and fixes it. The strip of material is thus held down or fixed twice, first via the holding-down section 17 of the gripping device 5, and secondly via the holding-down element 110. Between the holding-down element 110 or its edge 115 and the holding-down section 17 or its edge 114 is the slot-shaped, only formed a few centimeters wide free space 112 or over the edges 115, 116 limited.

Now done, behold figure 50 , the cut. The cutting blade 10 is moved through the free space 112 against the strip of material 3 until it hits the support 16 of the blade table 14, so that the strip 2 is completely cut off. Here, the strip of material 3 and the strip 2 that is then cut are fixed completely over the entire strip width both in front of and behind the cutting line, so that even the slightest movement of the strip of material 3 is ruled out. The knife movement is represented by the arrow 83.

After the cut, ie when the cutting blade has cut through to the support 16, it initially remains in this position. The gripping device 5 but drives, see Figure 51 and arrow 85, up so that strip 2, which is magnetically coupled to the underside of tray 62 as described, is lifted with it. The cutting blade forms a separating plane between the strip 2 and the remaining strip of material 3, and causes the two to no longer come into contact before the gripping device is raised and can stick together again. On the other hand, the fixation of the material strip via the hold-down element 110 is retained; it is not moved, like the cutting blade 10 .

In the following, in Figure 52 In the step shown, the cutting blade 10 is raised again, see arrow 84, just as the gripping device 5 is also raised further, as shown by arrow 85. The lifting of the cutting blade 10 begins when the gripping device 5 is lifted so far that the strip 2 is positioned higher than the material strip 3 and the two cannot come into contact again under any circumstances when the cutting blade is lifted. While the cutting blade 10 is being raised, the hold-down element 110 still remains in the lowered position on the material strip, which means that the strip of material is also fixed on this side during the lifting movement of the cutting blade 10 . This ensures that the edge of the material strip, if it sticks slightly to the cutting blade 10, is not lifted when the cutting blade 10 is raised.

The horizontal movement of the gripping device 5 performed with respect to the feed of the material strip 3 is brought about by the horizontal feed of the carriage 39 . The raising and lowering of the magnetically coupled end of the tape as part of the feed, such as the figures 17 and 21 described, takes place by the vertical raising and lowering of the holder 51, which is guided on the carriage 39 in the linear guide 45. The vertical movement of the gripping device 5 for lifting the cut strip 2, as for 24 described, is carried out by the vertical adjusting device 59, on which the gripping device 5 is seated directly. The hold-down element 110 is moved via a suitable actuating element, which is coupled to the hold-down element 110 or the flap 113, which can be moved about a pivot axis, which will be discussed further below.

the Figures 53 - 63 then show the further operations of the device according to the invention, as per the step according to Figure 52 connect. The device 1 is shown in the schematic representations, after the receiving device 6 (also here without an optional winding device) is also shown here, at least in principle.

Shown is on the one hand already to the Figures 44 - 52 described gripping device A, which is already in the Figure 52 known position in which the strip 2 is picked up and the gripping device A is raised. Also shown is the second gripping device B, which is rotated away from the knife table 14 because it is offset by 180° to the gripping device A on the mounting plate 56 . The gripping device B has already deposited the strip 2 transported via it to the receiving device 6 on this. It has already been moved somewhat out of the actual storage area, for which purpose the receiving device 6 has a corresponding transport device, by means of which the carrier 7 together with the strip 2 can be moved. Also shown is the basic movement device 33, which is shown in FIGS figures 7 ― 10 elements shown and described in detail there, with the exception of the two gripping devices A and B, includes.

As Figure 54 shows, in the next step the two gripping devices A, B are rotated about the axis of rotation 60 (see 8 ) is rotated via the rotating device 54 so that the gripping device B is located above the material strip 3 that is not yet in the cutting position, while the gripping device A with the cut strip 2 is rotated towards the receiving device 6 . At the same time, see the arrow 86, the carriage 39 and with it all the elements of the movement device 31 arranged thereon, including the two gripping devices A, B, are retracted counter to the transport direction. As a result of the connection of the opened feed device 26 to the carriage 39, see arrow 87, the feed device 26 is also moved back again. The hold-down element 110 is still in the lowered position, fixing the material strip 3 .

In the next step, see Figure 55 , on the one hand moves the gripping device A, as shown by the arrow 88, via the horizontal linear guide, formed by the guide elements 57, 58, in the direction of the receiving device 6. However, it is not yet in the final storage position.

At the same time, on the other hand, the gripping device B moves vertically downwards, see arrow 89 , which takes place via the vertical adjusting device 59 , so that the hold-down section 17 of the gripping device B is lowered onto the material strip 3 . At the same time, the feed device 26 closes again and clamps the transport means 25. The hold-down element 110 or the flap 113 is still in the lowered position on the material strip 3

in Figure 56 The following step shown, the magnetic element 18 of the gripping device B, as shown by the arrow 90, brought back down into the actual magnetic coupling position to the element 8 on the belt. This means that the front end of the belt is consequently now again magnetically connected to the gripping device B and is additionally fixed via the hold-down element 110, ie the flap 113.

in Figure 57 The step shown is lifted via the adjusting element 47 the holder 51 and thus the entire structure including the two gripping devices A, B, as indicated by the arrow 91 in 29 shown. The holder 51 is moved upwards on the linear guide 45 . At the same time, the transfer table 30, as indicated by arrow 92, is also raised. These two simultaneous movements cause the front end of the material strip 3, which is magnetically attached to the gripping device B, to be lifted. Also at the same time, possibly also slightly earlier in time, the hold-down element 110 is also raised via its actuating element, see arrow 117, ie the clamping of the material strip 3 is released on this side.

In the next step according to Figure 58 the carriage 39 is in turn shifted horizontally via its associated actuating element, as indicated by the arrow 92. The actual clocked tape feed takes place, in which on the one hand the transport means 25 is moved in the transport direction 34 via the clamped feed device 26, while at the same time the two gripping devices A and B are also moved by exactly this displacement distance, which corresponds exactly to the width of the strip 2 to be cut will. This On the one hand, movement on the part of the gripping device A means that it is now positioned exactly in the storage position above the receiving device 6 . On the other hand, the gripping device B, and with it the end of the strip, is brought exactly into the cutting position above the knife table 14.

In the next following, in Figure 59 The step shown is in turn lowered the holder 51 and with it all attachments located thereon, ie also the two gripping devices A, B, which means that the actuating element 47 moves the holder 51 on the linear guide 45 downwards again. This is indicated by the arrow 93 in 31 shown. This lifting movement is small, for example it is only a few millimeters. However, it is sufficient for the gripping device B to be lowered far enough for the material strip 3 to be placed on the knife table 14 and quasi clamped there. At the same time, of course, the transfer table 30 is also swiveled away, as shown by the arrow 94 . Consequently, the strip of material 3 is now in the cutting position for the next cut. At the same time, or slightly thereafter, the hold-down element 110 is also lowered back onto the material strip 3, as indicated by the arrow 118. The material strip 3 is thus again in two positions, namely over the gripping device 5 together with the hold-down section 17 and the hold-down element 110. Both are again spaced apart from one another, forming the free space 112.

Also simultaneously with this, the jamming of the feed device 26 is released, and the transport means 25 is released again.

As described, the vertical adjusting movement that can be achieved via the holder 51 is only relatively small. However, the gripping device A is located further away from the receiving device 6 than the stroke of this lifting movement according to arrow 93 takes place. In order to finally be able to deposit the cut strip 2 , the gripping device A, see arrow 96 , is finally moved via the vertical adjusting device 59 into the depositing position in which the strip 2 rests on the carrier 7 . In this position, the strip 2 is located exactly above a magnetic element 97 which is arranged below the carrier 7 and which magnetically fixes the element 8 in the strip 2 and hence the strip 2 itself.

In the next following, in figure 60 In the step shown, the actual cut now takes place, the knife 10 cuts through the free space 112, as shown by the arrow 98, so that the new strip 2 is separated.

At the same time, the gripping device A pivots the magnetic element 18 upwards again, as shown by the arrow 99 . The magnetic coupling of the magnetic element 18 to the element 8 on the strip side is canceled; this is now only magnetically coupled to the magnetic element 97 of the receiving device 6 .

in the in Figure 61 In the next step shown, the gripping device B then moves up again, as shown by the arrow 102 . The hold-down element 110 remains lowered onto the material web 3, just as the cutting blade 10 also remains in the cutting position, so that the strip 2 can be separated without problems. As can be seen, the cut strip 2 is still coupled to the hold-down section 17 via the magnetic element 18 . At the same time, the gripping device A also moves up, see arrow 101.

As Figure 62 shows, in the next step, on the one hand, the gripping device B moves further up, but at the same time the cutting knife 10 is also moved up again after the strip 2 has been separated. The hold-down element 110 remains lowered. At the same time, the gripping device A moves, as shown by the arrow 103, along the horizontal linear guide, formed by the guide elements 57, 58, back to the starting position, ie it moves away from the receiving device 6. In the next step that now follows, see FIG Figure 63 , rotation in the horizontal plane is effected again via the rotary drive 54, so that the "empty" gripping device A is again rotated over the material strip 3 or the knife table 14, while the gripping device B with the previously cut strip 2 is rotated back to the receiving device 6 . Arrow 104 shows this. At the same time, however, the carriage 39 also moves, see Arrow 105, and with it of course all attachments including the gripping devices A, B again counter to the direction of transport to initiate a new cycle below. The opened feed device 26 is also moved back together with the carriage 39, as shown by the arrow 106.

Furthermore, the receiving device 6 now carries out the clocked transport of the carrier 7 together with the strips 2 arranged on it in order to release the actual depositing position again, see arrow 107.

A new cycle can now begin, as described above with reference to FIG Figures 44 ff. described.

Here, too, the recording device 6 can include a detection device, for example a camera system, which detects and continuously checks the placement position in order to be able to adjust the individual adjustment movements within the overall system if necessary. Any faulty strips can also be identified and marked as rejects. As a result, incorrect cuts can be removed from the subsequent processing chain and an uninterrupted work chain with precisely cut strips of the required quality can be guaranteed.

the Figures 64 and 65 finally show a side view and a plan view of the device of the second embodiment, where the movement arrangement for moving the hold-down element 110 is also shown. The hold-down element 110 is rotatably mounted about an axis of rotation 118 on supports 120, here two cheeks arranged on both sides, which are arranged on the machine frame. Furthermore, the hold-down element 110 is coupled to an actuating element 121, for example a pneumatic or hydraulic cylinder, which causes the movement of the hold-down element 110, ie the flap 113 here, in both directions and can be controlled accordingly.

As an alternative to the flap 113, the hold-down element 110 can also be designed as a linearly movable bar, which can be placed and lifted vertically from above onto the material strip via a linear guide, for example, also controlled by an actuating element. The strip also grips the material strip 3 with a narrow edge, so that there is only a small amount of line contact that causes adhesion.

The cutting blade is either an ultrasonic blade or a heated cutting blade. Both types of knives can be used in both embodiments or alternatives of the cutting device.

Claims (30)

Cutting device for cutting narrow strips (2) from a strip of material (3), in particular a rubberized strip of material (3), in or on which elements (8) that can be magnetically coupled one behind the other at defined intervals in the strip's longitudinal direction are embedded or arranged, comprising a device frame (33) arranged knife table (14) on which the strip of material (3) to be cut can be positioned, a cutting device (35) comprising a cutting knife (10) which can be moved relative to the knife table (14) from a starting position into a cutting position, and a cut strip (2) receiving and transporting gripping means (5, A, B) movable relative to the knife table (14), wherein - either the gripping device (5, A, B) has a hold-down section (17) which can be placed on the material strip positioned on the knife table (14) for cutting and which fixes the material strip (3) on the knife table (14) during the cut, and a magnetic element ( 18) which interacts magnetically with the magnetically couplable element (8) of the cut strip (2) to fix the strip (2) to the gripping device (5, A, B) for transport into a delivery position, and wherein the hold-down section (17) has a recess (23) through which the cutting knife (10) can be moved to the knife table (14) into the cutting position, - or the gripping device (5, A, B) has a hold-down section (17) which can be placed on the material strip positioned on the knife table (14) for cutting and which fixes the material strip (3) on the knife table (14) during the cut, and a magnetic element ( 18) which interacts magnetically with the magnetically couplable element (8) of the cut strip (2) to fix the strip (2) on the gripping device (5, A, B) for transport into a delivery position, and wherein at least one another hold-down element (110) is provided, which can be placed on the material strip (3) at a distance from the hold-down section (17) for cutting, forming a free space (112), the cutting blade (10) being movable into the cutting position through the clearance (112) relative to the blade table (14). Cutting device according to Claim 1, characterized in that the recess (23) or the free space (112) is designed as an elongate slot. Cutting device according to Claim 1 or 2, characterized in that the gripping device (5, A, B) has a housing (61) with a base (62) and a hold-down plate (63) arranged thereon, or a carrier and optionally a hold-down plate (63) arranged thereon 63). ) or the base (62) or the carrier itself forms the hold-down section (17). Cutting device according to Claim 3, characterized in that the recess (23), in particular the slot, is provided between the hold-down plate (63) and the housing (61) or the carrier, or that the free space (112) between the hold-down element (110) and the housing (61) or the base (62) or the support. Cutting device according to Claim 3 or 4, characterized in that the magnetic element (18) interacts through the base (62) or the carrier with the element (8) which can be magnetically coupled. Cutting device according to one of Claims 3 to 5, characterized in that a projection forming a contact edge for the strip of material is provided on the side of the base (62) or of the carrier which faces the knife table (14). Cutting device according to one of the preceding claims, characterized in that the magnetic element (18) can be moved, in particular pivoted, between a raised and a lowered position, in which it interacts magnetically with the element (8), on or in the housing (61) or on Carrier is arranged. Cutting device according to one of the preceding claims, characterized in that the hold-down element (110) can be moved linearly or pivotably relative to the material strip (3) by means of a movement device, the hold-down element (110) preferably being a linearly or pivotally movable bar or a pivotable flap (113 ) is. Cutting device according to Claim 8, characterized in that the strip or the flap (113) can be placed with an edge (115) on the material strip (3). Cutting device according to one of the preceding claims, characterized in that the cutting blade (10) is an ultrasonic cutting blade or a heatable cutting blade. Cutting device according to one of the preceding claims, characterized in that the cutting knife (10) is arranged on a knife carrier (67) which is arranged on a holder (70) so as to be linearly movable. Cutting device according to Claim 11, characterized in that the holder (70) can be pivoted about a pivot axis (13, 72) running horizontally perpendicular to the longitudinal direction of the material strip (3) relative to the device frame (33), the pivot axis (13, 72) preferably coincides with a cutting line which lies in the plane of the knife table (14) and is defined over a cutting edge (15) of the cutting knife (10) in the cutting position. Cutting device according to one of the preceding claims, characterized in that the gripping device (5, A, B) is arranged on a movement device (31) which moves it both vertically and horizontally relative to the knife table (14). Cutting device according to Claim 13, characterized in that the movement device (31) is set up for vertical and horizontal movement along respective linear axes and for horizontal movement by rotation about a vertical axis (60). Cutting device according to Claim 14, characterized in that two gripping devices (5, A, B) which are rotated through 180° and arranged adjacent to one another are provided which are rotated towards and away from the cutting device (35) by the movement device (31). are rotatable. Cutting device according to one of Claims 13 to 15, characterized in that the movement device (31) has a carriage (39) via which it is arranged such that it can be moved horizontally on a linear guide provided on the device frame (33). Cutting device according to Claim 16, characterized in that a holder (51) is arranged on the carriage (39) so that it can move vertically and to which the gripping device (5, A, B) is coupled or both gripping devices (5, A, B) are coupled, A pivoting lever (48) which is pivotably mounted on the carriage (39) and can be moved via an actuating element (47) and is coupled to the mounting (51) is preferably provided for the vertical movement of the mounting (51). Cutting device according to one of Claims 13 to 17, characterized in that the movement device (31) has a mounting plate (56) on which the one or both gripping devices (5, A, B) are each attached along a horizontal axis and/or along a vertical axis is arranged to be linearly movable, with preferably the gripping device (5, A, B) or one gripping device (5, A, B) each being arranged on a vertical adjusting device (59) which is mounted on a horizontal linear guide (57, 58) on the mounting plate (56 ) is arranged. Cutting device according to one of Claims 14 to 18, characterized in that a rotary drive (54) is provided for the rotational movement, which is coupled to the gripping device (5, A, B) or the two gripping devices (5, A, B). Cutting device according to Claim 19 and Claim 17, characterized in that the rotary drive (54) is arranged on the holder (51). Cutting device according to Claim 19 or 20 and Claim 18, characterized in that the rotary drive (54) is connected to the mounting plate (56). Cutting device according to one of the preceding claims, characterized in that a transport means (25), in particular a conveyor belt, is provided on the device frame (33) for transporting the material strip (3) to the cutting device (35). Cutting device according to Claim 22 and one of Claims 13 to 21, characterized in that the movement of the transport means (25) and a horizontal movement of the movement device (31), during which the gripping device (5, A, B) on the material strip (3) seated and the magnetic element (3) interacts with the element (8) which can be magnetically coupled, are synchronized for transporting the material strip (3) into the cutting position. Cutting device according to claim 22 or 23, characterized in that for moving the transport means (25) a detachable on this engaging clamping means (26), which can be moved linearly, is provided, or that a transport roller, over which the transport means runs, and a drive motor that drives it is provided. Cutting device according to one of Claims 22 to 24, characterized in that one or more magnetic means (38) interacting magnetically with the elements (8) of the material strip (3) are provided below the upper strand (29) of the transport means (25). Cutting device according to one of Claims 22 to 25, characterized in that between the end of the transport means (25) and the knife table (14) there is a transfer table (30) which guides the material strip (3) and can be raised and lowered, the transfer table preferably (3) is pivotably mounted and can be raised and lowered with the end adjacent to the knife table (14). Cutting device according to Claim 26, characterized in that the transfer table (30) has a chamfer (78) at the end adjacent to the knife table (14), which in the lowered position is arranged adjacent to a shape-compatible chamfer (79) on the knife table (14). . Cutting device according to one of the preceding claims, characterized in that on the upper side of the knife table (14) in the region of the end facing away from the cutting device (35) there is a recess for receiving a section of the gripping device (5, A, B), in particular one on its underside provided projection, is provided. Cutting device according to one of the preceding claims, characterized in that the knife table (14) has a support (16), in particular made of plastic, forming its upper side carrying the strip material. Device for producing and processing strips (2) of a strip of material (3), each of which contains at least one element (8) that can be magnetically coupled, comprising a cutting device (4) according to one of the preceding claims and a receiving device (6) connected downstream thereof for receiving the isolated strips (2) on a carrier (7), preferably with the strip (2) occupied carrier (7) is covered with a further carrier, so that the strips (2) are arranged between the two carriers, and preferably the Recording device (6) has a winding device or this is followed by a winding device in which the carrier or carriers covered with the strips is wound into a roll.

Images