EP2426074B1 - Device for cutting film-like media - Google Patents

Description

The present invention relates to a device for cutting sheet-like media.

In the commercial chain of self-adhesive films, textile finishing films, digital printing media and many similar or comparable materials, the packages usually become smaller with each further step in the retail chain from the manufacturer to the end customer. In particular, a cut in width and / or length of the mostly wound on rolls media is therefore required at each level of trade. These custom cuts are done regularly by manufacturers, distributors, wholesalers and, last but not least, retailers. These cutting operations are time consuming, labor intensive and usually lossy. In particular, it must be ensured that the minimum lengths and / or minimum widths of the medium to be cut are complied with, since otherwise at z. B. a further blank is required, such as a complaint.

Due to increasing competitive pressure in the relevant market, the dealers of the aforementioned media are forced to quickly and flexibly Customer requests to respond and to deliver the media with the desired dimensions. In addition to fast delivery, it should also be noted that, on the one hand, due to the unpredictable customer-specific dimensions, such blanks can not be kept in stock, and on the other hand, it is not advantageous to stock appropriate stocks with regularly recurring dimensions. Thus, a blank is regularly carried out in the context of the execution of an order process according to the requirement.

A fast, cost-effective and waste-free cutting solution is therefore very desirable for resellers of the aforementioned media.

From the EP 2 210 837 A1 An automatic stretching and winding machine for packaging film is already known. This machine has a plurality of rollers and a cutting means, so that a sheet-like medium spanned on the rollers can be unwound and cut from a larger winding to a smaller course.

Although already known approaches, in particular the known cutting machines are partially available at low cost. Such cutting machines usually have two-axle systems with a driven axle, wherein the other axle is designed as a passive braked axle. The material is pulled from the roll of material in these machines and moved to the take-up axis, where it is manually attached by gluing. Then a counter wheel is placed and the winding process started. In some machines, the length to be wound can be specified, but in most cases it is necessary to stop the machines manually and readjust the exact length by hand. After manually cutting off the medium, the overhang of the roll of material falls down and the remainder of the take-up roll must also be manually rewound. Many of these machines can not be used with digital media, as digital media are very sensitive to perspiration, grease and other contamination, but these machines have intensive manual handling require the medium connected with direct contact or hand contact with the operator of the blanking machine during the cutting process.

In particular, these machines do not have the required cutting accuracy, so that the media to be cut is regularly cut to a longer length to comply with the minimum specifications in terms of dimensions. In particular, it proves to be disadvantageous that sufficient process reliability can not be achieved with regard to waste minimization.

It is therefore an object of the present invention to further develop a device for cutting foil-like media of the type mentioned in an advantageous manner, in particular to the extent that they can be operated with greater accuracy and less direct contact of the operator with the medium.

This object is achieved by a device having the features of claim 1. Thereafter, it is provided that a device for cutting foil-like media is provided with a first receptacle, on the at least one roll with a rolled up sheet-like medium and / or clamped is provided with at least one second receptacle on which at least one second roller can be used and / or clamped, wherein by means of the device, the film-like medium from the first roll at least partially unwindable and on the second roll can be rolled, at least one cutting means provided is, by means of which the film-like medium in the region between the first and the second recording is cut to length.

The film-type media may, for example, be self-adhesive films, cutting films, plotter films, decorative films, transparent films, textile finishing films, flex films, flock films, sandblast films, masking films, double-sided films Self-adhesive films, reflective self-adhesive films, metal effect films, digital print media or similar media act.

But also the blank z. B. of paper webs or other webs is conceivable.

By the device there is the advantage that the clamping and setting of the medium can be performed with little direct contact of the operator. Furthermore, high-precision blanks are possible, resulting in less waste and fewer customer complaints.

The first and the second receptacle preferably each have driven axles or shafts, which serve as winding and unwinding axes. By their own drive or each own deceleration by means of at least one braking means of these waves, a constant web tension of the medium can be maintained. By the driven Abwickelachse can be done, for example, the rewinding of the residual material after a Ablängvorgang on the roll of material, while the driven Aufwickelachse still wound up the remainder of material between the cutting edge and film roll before closing the role.

Furthermore, it is provided that at least one additional clamping means is provided, by means of which the film-like medium can be clamped, clamped, conveyed and / or guided in the region between the first and the second receptacle. This makes it possible to perform several cutting operations in succession without re-clamping the medium. Furthermore, the additional chucking means makes it possible to perform a sheet-cutting function, since the material can be conveyed to the desired length without a take-up spindle and can be correspondingly cut off. An automatic cutting of sheets for samples or small orders can thus take place.

Moreover, it is possible that at least one positioning means is provided, by means of which the film-like medium can be positioned. In particular, the film-like medium with respect to the Abrolllänge and / or the feed to exactly ± 1 mm accurate, preferably to about ± 0.1 mm can be accurately positioned.

Furthermore, it can be provided that at least one position detection means is provided, by means of which the position of the film-like medium, in particular with regard to the rolling length and / or the feed, can be detected indirectly and / or directly.

Advantageously, it is further conceivable that the first and / or second receptacle is and / or comprises a tensioning shaft, wherein the tensioning shaft has at least one diameter-variable section and a tensioning means, wherein the at least one diameter-variable section can be changed with respect to its diameter by means of the tensioning means.

The tension shafts can be designed to be cantilevered, so that a roller or sleeve can be easily pushed. This facilitates the setup process and increases productivity.

Furthermore, it can be provided that the at least one additional clamping means has at least one driven conveying shaft, wherein the film-like medium between the first receptacle and the at least one additional clamping means can be clamped, clamped, conveyed and / or guided.

In addition, it is conceivable that the at least one additional clamping means has at least one impression cylinder, wherein the film-like medium between the conveyor shaft and the impression cylinder is clamped, wherein more preferably the impression cylinder is rotatable and / or driven. The impression cylinder can advantageously roll on the conveyor shaft and against the conveyor shaft engagable or be able to be turned off from this. Thus, for example, be clamped for clamping the medium of the impression cylinder and the Clamping of the medium in the device of the impression cylinder to be employed on the conveyor shaft.

Moreover, it is possible that the at least one additional clamping means has at least one deflection cylinder, by means of which the film-like medium is at least partially deflectable, wherein more preferably at least one deflection cylinder is rotatable and / or driven. In particular, it can be provided that the additional clamping means is arranged offset from the plane defined by the two axes of the recordings. This makes it easier to keep the web tension of the medium constant and by means of the deflection cylinder, the deflection of the medium can be gently and advantageously supported.

It is also conceivable that the positioning means comprises at least one servomotor, by means of which indirectly and / or directly the film-like medium can be positioned. In particular, the film-like medium with respect to the Abrolllänge and / or the feed to exactly ± 1 mm accurate, preferably to about ± 0.1 mm can be accurately positioned. This results in the advantage of being able to position the medium with high precision and also to be able to accurately identify the position of the medium in the device. It is also possible to correct the medium with high precision in terms of position. The corresponding positions can be easily approached by means of the servomotor. A control can be effected by the control and / or regulating means of the device.

The servomotor may be, for example, a stepper motor and / or a servomotor or comprise a stepping motor and / or a servomotor.

Furthermore, it is possible that the positioning means comprises at least a first drive means and at least a second drive means, wherein the first drive means is an electric motor, by means of which the film-like medium is positionable in at least a first step and wherein the second drive means is the servomotor, by means of which the film-like medium is positionable in at least a second step. This will make it possible First, the role using the electric motor to process or handle and the Abrolllänge or unwinding length based on Abrollgeschwindigkeit or web speed and the number of revolutions of Abwickelachse z. B. by means of the control and / or regulating means to calculate. If it is ascertained that the unwinding length or unwinding length is still to be corrected, but this can not be done accurately enough by means of the first drive, for example because corrections have to be made in the mm range or less, then this correction can be carried out with high precision by the servomotor. The electric motor may be, for example, a DC motor.

To calculate the roll end, using the measured web speed and the number of revolutions of the pay-out axis during a wrapping operation, the diameter of the roll of material can be dynamically calculated by means of the control and / or regulating means. Since the wall thickness of the cardboard tube of the roll of material is approximately known, the wrapping process can be braked in time by means of the drive or a braking means or braked before the roll of material runs empty. This advantageously prevents damage to the device and the material, since the films are usually very firmly adhered to the rollers or sleeves. Sometimes significant delays can be avoided.

Furthermore, it is conceivable that the position detection means comprises at least one optical and / or one mechanical detection means. By optical and mechanical scanning of the leading edge of the material, a millimeter-accurate measurement of the unwinding length during the entire rewinding process and thus waste-free production can be made possible.

Furthermore, it can be provided that the optical detection means is an optical sensor and / or at least one optical sensor, wherein by means of the optical sensor by detecting at least one edge of the film-like medium indirectly and / or directly the position of the film-like medium can be detected.

Another possible embodiment is that the mechanical detection means is a measuring wheel and / or comprises a measuring wheel, wherein indirectly by means of the measuring wheel by rolling the measuring wheel on the film-like medium and / or by detecting at least one edge of the film-like medium by means of the measuring wheel or directly the position of the film-like medium is detectable.

Furthermore, it is conceivable that by cooperation of the at least one positioning means and the at least one position detection means, a first edge of the film-like medium can be recognized on the machine side, in particular by means of a control and / or regulating means, and / or the device can be calibrated to this first edge.

In addition, it can be provided that by means of the servomotor in a first step one or more times the film-like medium over the optical sensor and / or the optical sensor past is feasible, whereby thereby the first edge of the film-like medium on the machine side, in particular by means of the control and / or control means, recognizable and / or the device can be calibrated to this first edge.

Furthermore, it is possible that a second step by means of the measuring wheel indirectly and / or directly from the detected first edge of the film-like medium unrolled length of the film-like medium on the machine side, in particular by means of the control and / or regulating means, recognizable.

It can be provided that in a third step on the machine side, in particular by means of the control and / or regulating means, is verifiable, whether a predetermined and / or predetermined length measured from the first edge to a producible by the cutting means cutting edge of the film-like medium the second roll was rolled up and that by means of the servomotor, the predetermined and / or predefinable length and thus the to be generated Cut edge of the film-like medium is adjustable, in particular finely adjustable is adjustable, if the approached by means of the first drive means position generated or generated by the deviating to the generating edge cutting edge.

It is also possible that in a fourth step by means of the cutting means, the film-like medium can be cut to length at the set cutting edge.

It is also conceivable that the cutting means comprises at least one driven or driven slide, by means of which the cutting means from at least one first position in at least a second position can be transferred and / or that the cutting means is guided in an at least partially hinged holder, preferably a Part of the Aufspannmittels is also stored in the holder, in particular the impression cylinder of Aufspannmittels. It is possible, for example, to provide two opposed cutting blades on the carriage, which intersect only in one direction of the carriage, that is, in a movement from the first to the second position and vice versa.

In addition, it is possible that the change in diameter of the diameter-changeable portion can be brought about by a change in length, wherein the clamping means is indirectly and / or directly connectable or connected to the diameter variable portion and the length change is achieved by a relative movement of the clamping means relative to the clamping shaft.

It is also conceivable that at least two diameter-variable sections are provided and / or that the diameter-variable sections are at least partially made of an elastomer and / or rubber and / or an elastic plastic.

The variable diameter portions may be formed, for example, of silicone rubbers and potted with threaded adapters, so that they can not only be squeezed, but also stretched. As a result, self-clamping effects between the sleeve or roller and tensioning shaft can be prevented.

Furthermore, it can be provided that the tensioning means is a rod guided coaxially in the tensioning shaft and movable along the longitudinal axis.

It is also conceivable that the clamping means can be actuated by means of an actuating means.

It is possible that the actuating means has at least one actuating lever and at least one gas pressure spring, by means of which the movement of the clamping means can be supported.

Advantageously, it can be provided that the gas pressure spring is arranged such that the movement of the clamping means for a clamping operation, in which the at least one diameter variable portion compressed and thereby increased in diameter, substantially by the Ausschubbewegung the prestressed gas spring can be brought about.

Further, it is conceivable that the gas spring is arranged such that the movement of the clamping means for a relaxation process in which the at least one variable diameter portion is pulled apart and thereby reduced in diameter, essentially by the insertion movement of the prestressed gas spring can be brought.

Advantageously, the clamping force is not applied by the operator, but this only has to apply only the lower release force for releasing the prestressed gas pressure cylinder. In particular, no damage to the Role by a forced tightening possible, since the actuating lever acts only indirectly on the clamping shaft. To relieve the tensioning shaft, the silicone rubbers can be stretched and thus, for example, brought to a diameter below the diameter of the tensioning shaft.

It can be provided that the tensioning shaft can be connected and / or upgraded with at least one replaceable sleeve adapter, wherein at least one first sleeve adapter with a first diameter and preferably at least one second sleeve adapter with at least one second diameter is provided. It is possible that the one or more variable diameter portions are respectively integrated into the sleeve adapters.

It is possible that the device has at least one magnetic switch means and at least one mechanical switch means, by means of which the device is at least partially switched on and / or off, preferably the cutting means is switched on and / or off.

It is also conceivable that when the holder in which the cutting means is guided, at least one of the two switch means is actuated such that the cutting means can be switched off or switched off and / or that it can be seen on the machine side, in particular by means of the control and / or or control means is recognizable, whether or that the holder is at least partially folded, in particular not closed or folded.

Furthermore, a recording is disclosed. Thereafter, it is provided that a receptacle, in particular a receptacle for a device described above for cutting film-like media, a tensioning shaft and / or comprises, wherein the tensioning shaft has at least one variable diameter portion and a clamping means, wherein by means of the clamping means of at least one variable diameter portion is variable in terms of its diameter.

The receptacle has in particular the aforementioned features of the receptacle, which are disclosed in connection with the device, as well as their advantages.

In particular, it can be provided that the change in diameter of the diameter-changeable portion can be brought about by a change in length, wherein the tensioning means is indirectly and / or directly connectable or connected to the diameter-changeable portion and the change in length can be achieved by a relative movement of the tensioning means relative to the tensioning shaft.

It is also conceivable that at least two diameter-variable sections are provided and / or that the diameter-variable sections are at least partially made of an elastomer and / or rubber and / or an elastic plastic.

It is also possible that the tensioning means is a rod guided coaxially in the tensioning shaft and movable along the longitudinal axis.

Furthermore, it can be provided that the clamping means can be actuated by means of an actuating means.

It is possible that the actuating means has at least one actuating lever and at least one gas pressure spring, by means of which the movement of the clamping means can be supported.

Furthermore, it is conceivable that the gas pressure spring is arranged such that the movement of the clamping means for a clamping operation in which the at least one diameter variable portion is compressed and thereby increased in diameter, substantially by the Ausschubbewegung the prestressed gas spring can be brought about.

Furthermore, it is possible that the gas pressure spring is arranged such that the movement of the clamping means for a relaxation process in which the at least one diameter variable portion is pulled apart and thereby reduced in diameter, essentially by the insertion movement of the prestressed gas spring can be brought.

In addition, it can be provided that the tensioning shaft can be connected and / or upgraded with at least one replaceable sleeve adapter, wherein at least one first sleeve adapter with a first diameter and preferably at least one second sleeve adapter with at least one second diameter is provided.

Furthermore, a device arrangement is disclosed, comprising at least one device described above and at least one input device, wherein the device and the input device are connected by means of at least one data exchange means and wherein by means of the input device is indirectly and / or directly predetermined, which sheet-like medium with which lengths and / or in which order to cut, wherein the input device is preferably the input device of a merchandise information system.

In this context, it is conceivable that in the device arrangement, a computing means or control means is provided, which is formed for example by a computing unit and a control unit provided thereon. This control unit enables the connection of the device to any ERP system and may be or include a software module.

For example, the same positions on several delivery notes can be summarized in the system and an optimized cutting list can be created, so that set-up times and travel paths of the warehouse operator and operator of the device can be minimized.

It is conceivable that labels can be automatically printed for each cut order both for the cut roll and for the roll of material, on which, for example, color number, run length, in the case of the roll of material the remaining run length or other individualizable data can be noted or printed.

Further details and advantages of the invention will now be explained in more detail with reference to an embodiment shown in the drawing.

Show it:

• FIG. 1 : a schematic representation of a device according to the invention;
• FIG. 2 a further schematic representation of a device according to the invention when clamping a medium;
• FIG. 3 a further schematic representation of a device according to the invention when calibrating a medium;
• FIG. 4 : a further schematic representation of a device according to the invention during winding of a medium;
• FIG. 5 a further schematic representation of a device according to the invention when cutting a medium;
• FIG. 6 a schematic front view of the device according to the invention;
• FIG. 7 FIG. 2 is a flowchart relating to the possible treatment of a goods receipt to be processed with the device; FIG.

FIG. 8:

a flowchart relating to a possible blank implementation of a medium to be cut off with the device; and

FIG. 9:

a flowchart relating to another possible blank implementation of a medium to be cut off with the device.

FIG. 1 shows a schematic representation of an inventive device 10 for cutting foil-like media 20. The film-like media 20 may, for example, self-adhesive films, cutting films, plotter films, decorative films, transparencies, textile finishing films, flex films, flock films, sandblast films, masking foils, double-sided self-adhesive films, reflective self-adhesive films , Metal effect films, digital print media or similar media.

The device 10 has a first receptacle 40, which has a tensioning shaft 42, not shown in detail. On the tensioning shaft 42, a roller 30 can be threaded or pushed with the sheet-like medium 20 rolled up thereon. In order to be able to thread a plurality of diameter sizes of rollers 30 on the tensioning shaft 42, exchangeable sleeve adapters are provided, preferably in the usual sizes 2 inches and 3 inches, whereby sleeve adapters with a diameter of, for example, 50 mm and upwards may be provided.

Comparable constructed as the first receptacle 40 is also the second receptacle 50, on which the roller 32 placed, or threaded or can be postponed. This second receptacle 50 has a substantially identical clamping shaft 52 with exchangeable sleeve adapters.

The first tensioning shaft 42 and the second tensioning shaft 52 of the first and second seats 40 and 50 can each be driven by means of a drive, this drive comprising at least one DC motor. Preferably, however, each clamping shaft 42, 52 associated with its own DC motor, the motors but advantageously be controlled synchronously via the control and / or regulating unit 100.

Between the two receptacles 40 and 50, an additional Aufspannmittel 200 is provided by means of which z. B. the film-like medium 20 can be clamped, stretched and also promoted to unroll it from the roll 30. The additional chuck 200 thus performs the function of a pre-feed unit and serves to maintain the tension when a first part of the sheet-like medium 20 has been cut to length by means of the cutting means 60, as will be explained in detail below. Due to the arrangement of pre-feed unit 200 and cutting means 60, only a very few direct contacts of the operator with the medium 20 are required, which is indispensable, especially in the processing of digital printing media, because they are very sensitive to sweat, grease and other contaminants.

The additional chuck 200 comprises a driven conveyor shaft 210 and an impression cylinder 220 rolling on the conveyor shaft. The impression cylinder 220 is preferably mounted in a partially hinged holder, so that the insertion of the sheet-like medium 20 is facilitated.

Further, deflecting cylinders, not shown, may be provided, which guide the medium 20 by the clamping means 200 deflecting. These deflection cylinders are preferably arranged on the input side and output side of the clamping means 200 and also take over a part of the clamping function of the clamping means 200. In particular, it may be provided to arrange the clamping means 200 offset, so that the medium 20 is not guided on a direct, straight path through the clamping means 200 becomes.

In order to be able to accurately determine the position of the inserted film-like medium 20 to about ± 0.1 mm, a position detection means 300 is provided, the function and features of which will be explained in detail below in connection with the insertion and Ablängvorgang.

FIG. 2 shows a further schematic representation of a device according to the invention when clamping a medium 20. For this purpose, first the roller 30 with the medium 20 is threaded onto the clamping shaft 42 of the receptacle 40. The tension shafts 42, 52 of the receptacles 40 and 50 are each mounted on the drive side on one side, so that the roller 30 or 32 can simply be pushed onto the freestanding shaft end of the tension shafts 42, 52.

To brace the roller 30 on the tensioning shaft 42 of the receptacle 40, the user must actuate the associated actuating means. This comprises a pivot lever, by means of which by transferring the pivot lever from a first to a second position, a preloaded gas spring is released. The gas spring is ejected and by this movement is in the clamping shaft 42, 52 coaxially guided and along the longitudinal axis of the clamping shaft 42, 52 movable rod retracted. By this retraction of the sleeve adapter of the clamping shaft 42, 52 is pushed together. The sleeve adapter has two symmetrically arranged diameter variable sections of rubber, which are pushed together as a result of the pull-in movement and therefore increase in diameter. In this way, the roller 30 is clamped on the clamping shaft 42 of the receptacle 40, in particular the diameter variable sections of rubber pressed against the inner wall of the roller 30 or 32. The tensioning shaft 52 of the receptacle 50 is analogous, in particular structurally constructed and the roller 32, on the lengthened or cut medium 20 'is rolled up, can be stretched analogous to the roller 30.

As in FIG. 3 1, the front edge 25 of the media 20 to be cut is determined by the position detecting means 300. The position detecting means 300 includes both an optical sensor that detects the leading edge 25 of the sheet-like medium 20. In addition, the position detection means 300 comprises a measuring wheel which rolls on the medium 20. In order to be able to detect the position of the end edge 25 with an accuracy of approximately ± 0.1 mm, the end edge 25 can be guided one or more times past the optical sensor of the position detection means 300 by means of a servomotor to determine the exact position based on the position of the servomotor and the correspondingly generated signal of the optical sensor on the machine side, in particular by a corresponding evaluation of these data by the control and / or regulating unit 100. The connection 102 of the servomotor and the position detection means 300 with the control and / or regulating unit 100 can be designed, for example, by wire, but also wirelessly.

The correspondingly determined position data are transmitted by the position detection means 300 to the control and / or regulating unit 100. As a result, it is always known on the machine side which position the end edge 25 of the medium 20 has.

The length which is to be cut from the roll 30 with the medium 20 rolled up thereon can be predetermined via an input device not shown in more detail, which can be connected to the control and / or regulation unit 100 or is connected. The input device may for example be provided directly on the device itself. It is also conceivable that the input device is a terminal of a merchandise management system, in which removes one or more cut orders assembled and sent to the device 10 z. B. wireless or wired. Such an embodiment will be described below in connection with the FIGS. 7 to 9 described.

In order to unroll the predetermined length of the roller 30, an empty tube 32 or empty roller 32 is already clamped on the clamping shaft 52 of the receptacle 50, to which the medium 20 under appropriate tension, by the three synchronously and at the same feed speed driven shafts 42, 52 of the receptacle 40 and 50 and the conveyor shaft 210 is applied, is rolled up.

As soon as it is determined by means of the measuring wheel of the position monitoring device 300 and the associated control and / or regulating unit 100, that the medium 20 has moved into position relative to the cutting means 60 such that the cutting edge 27 to be produced is approximately ± 0 , 1 mm was approached, the feed of the medium 20 is stopped. If the desired accuracy has not been achieved, the position of the cutting edge 27 to be produced can be approached with an accuracy of approximately ± 0.1 mm by means of the servomotor.

Then, the cutting means 60 is activated, which is also guided in the hinged mounting of the impression cylinder. The cutting means 60 has two cutting blades arranged at an angle on a carriage. The carriage of the cutting means 60 can be moved from a first end position, which is located at the right end of the holder and in which the blades are secured inaccessible, to a second end position, which is at the left end of the holder and in which the blades are secured inaccessible, and be transferred again from the second to the first end position. The path between the first and second end positions is parallel to the axes of rotation, in particular of the tension shafts 42, 52 of the receptacles 40, 50 and the conveyor shaft 210.

To cut the medium 20 at the cutting edge 27 to be produced, the carriage of the cutting means 60 is transferred from the first to the second position or vice versa, so that the medium 20 is cut to length along its width. The carriage then stops depending on the starting position in the first or second end position and is ready for a new cutting operation. As a result, time-consuming restoring movements of the carriage are avoided and the device 10 may optionally continue without delay with the next Ablängvorgang.

In order to increase the reliability of the device 10, two switch means are provided which close when the holder is completely closed and thus allow actuation of the cutting means 60. For one thing, it's a mechanical one Switch provided, which is pressed by the closing of the hinged bracket and thus closed. As a result, the power supply to the cutting means 60 is released mechanically. Furthermore, a magnetic switch is provided, which is also closed by the closing of the hinged bracket. As a result, the power supply to the cutting means 60 in the control and / or regulating device 100 is released. This magnetic switch is also used to detect the position of the holder and to indicate for example via a display that the holder is open and is still close for a cutting process. This is particularly advantageous if the operator has almost, but not completely closed the holder. In such a case, the operator can quickly find out and fix the cause of the malfunction for the device 10 that can not be operated in this state.

After cutting to length, like this in FIG. 5 For example, the roller 32 can be removed from the device 10. The cutting edge 27 of the cut-to-medium 20 'may, for. B. by means of an adhesive strip and / or by a self-adhesive label (see. FIGS. 7 to 9 ) are fixed on the roller 32 to prevent unintentional unrolling. By means of the pivot lever of the actuating means, the tensioning shaft 52 of the receptacle 50 can now be relaxed. For this purpose, the pivot lever is returned from the second to the first position, whereby the gas spring is tensioned. The force required for this purpose is dimensioned such that it can be applied easily and fatigue-free by a user. It can be between 50-100 N, for example. In addition, the return movement is supported by the relaxing diameter-variable rubber sections, which are now relieved by the Ausschubbewegung the rod and extend in the longitudinal direction and contract in the radial direction. The roller 32 is thereby relaxed and can be removed.

If no further Ablängvorgang is to be made by the roller 30, the holder is folded with the counter-pressure roller 220 and the medium 20 on the roll 30 rolled up. The roll 30 is then relaxed and removed analogously to the roll 32 and as described above.

However, if a further cutting is to be made, this is easily possible and indeed without a new clamping and / or calibration. Because the position of the end edge 25 'is on the machine side, in particular by the permanent monitoring means of the position detection means 300 and the corresponding storage of the position in the control and / or regulating unit 100 known, so that a renewed Ablängvorgang as above in connection with the FIGS. 1 to 4 can be started described.

FIG. 6 shows a schematic front view of the device 10 according to the invention. In this case, the main housing is arranged on one side of the device 10, here on the left side of the device 10, in which the drive and the control and / or regulating unit 100 is housed. The clamping shafts 42, 52 of the receptacles 40 and 50 are mounted on one side in the housing, as well as the conveyor shaft 210. The path of the cutting means 60, which extends substantially over the entire length of the clamping shafts 42, 52 of the receptacles 40 and 50, is also shown ,

In particular, the tension shafts 42, 52, the conveyor shaft 210 and the dimensions of the device 10 as a whole are advantageously dimensioned such that media widths of z. B. 630 mm, z. B. 1030 mm or z. B. 1650 mm are clamped. For example, a well-manageable reel diameter may be 26 cm for a 3-inch reel. An advantageous winding speed can be, for example, 1 m / s.

The control and / or regulating unit 100 may comprise a PLC and be provided with an input and output means, such as a keypad and a display. It is also conceivable to use a touch screen or a voice output. In addition, a data interface may be present with which the Control and / or regulating device with a merchandise management system, in particular a terminal of a merchandise management system is connectable.

FIG. 7 shows a flowchart concerning the possible treatment of a goods receipt to be processed with the device 10. In this case, a device arrangement consisting of a device 10, as shown in the FIGS. 1 to 6 is illustrated and explained, connected via the aforementioned data interface of the control and / or regulating unit 100 to the terminal of a merchandise management system as an input device. In method step S10, the material rolls 30 to be cut are delivered. In step S11, an input of material and color data is made via the terminal. This data also includes the parts to be cut from the roller 30. The advantage is that this can be done centrally and thus the operator of the device 10 is relieved of this. The input according to step S11 may, for. B. be made by the warehouse manager. In principle, however, it is also conceivable to make the inputs according to step S11 via an input means of the device 10.

In step S12, the cutting process is prepared on the one hand by means of software, in particular a corresponding software module of a merchandise information system, and on the other hand already stored in the merchandise management system in order to update the inventories. In step S13, the device 10 is then upgraded, wherein in particular the roll 30 to be cut and the empty roll 32 are clamped. At the same time, step S14 proceeds, in which z. B. a label with the material data, a barcode and the total length of the medium is output by means of a label printer connected to the merchandise management system. In step S15, the length to be unrolled is measured by means of the apparatus and the cutting process as described above in connection with Figs FIGS. 1 to 6 described carried out. Finally, in step S14, the roll of material 32 is closed with the label obtained in step S14, that is, the free end 27 glued to the roll and the roller 32 from the Device 10 taken. Then the process is completed or it can be started again with step S10.

FIG. 8 Figure 12 also shows a flow chart relating to a possible blanking operation for sheets of media 20 to be blended with the apparatus 10. In this case, the input of the desired number and length of the sheets is input via the terminal or via the input means of the apparatus 10 in step S100. Then, step S101 is prepared on the one hand by means of software, in particular of a corresponding software module of a merchandise information system, on the one hand, and on the other hand it is already stored in the merchandise management system in order to update the inventories. In step S102, the material roll required according to the cut order is requested. In step S103, the barcode on the stock roll is then scanned for release. In particular, it can be provided that the device 10 does not start cutting until the correct roll of material 30 has been scanned. The roll of material 30 is then upgraded according to step S104 and step S105 concerning the cutting of the sheet by means of the device 10 can be started. Simultaneously with step S105, step S106 is performed, whereby an automatic label printing is printed out with a corresponding bar code for the remaining roll 30. In this step, it is also possible to store the new data and in this case, in particular, the remaining length of the roll 30, if still done, in the merchandise management system. In step S107, the cut sheets are taken out, and in step S108, the material roll 30 is sealed and taken out with the label of step S106. Then the process is completed or it can be started again with step S100.

FIG. 9 also shows a flowchart relating to another possible blank execution of a medium to be stripped with the device 10. Thus, in a step S201 by means of auto import a delivery note or order form or order can be read in digital form. Alternatively or additionally, it is possible according to step S201 'a manual cut order enter. Step S201 and S201 'may each be performed at the terminal of an inventory control system serving as an input device. In step S202, by means of a software, in particular a corresponding software module of a merchandise information system, the trimming process is prepared on the one hand and, on the other hand, already stored in the merchandise management system in order to update the inventories. In steps S203 and S204, the cutting list can be created alternatively or alternatively according to the criteria "grouped by material" or "processing of individual orders". In step S205, an optimized cutting list is then created and transmitted to the device 10 and in step S206 the corresponding or the corresponding roll of material / n 30 is requested. Again, according to step S207, to release the blanking process, the barcode on the material roll 30 must be scanned for release analogously to step S103. In step S208, the roll of material 30 and the empty roll 32 are upgraded. In step S209, the cutting is carried out, in step S210 an automatic label printing for the small roll 32 with barcode and material data and length and in the same step S212 an automatic label printing for the remaining roll 30 with barcode and material data and length. The small roll 32 is sealed in step S211 with the label obtained from step S210 and taken out of the apparatus 10, and the remaining roll 30 is sealed in step S213 with the label obtained from step S212 and taken out of the apparatus 10. Then the process is completed or it can be started again with step S201 or S201 '.

Claims (15)

1. A device (10) for cutting film-like media (20) with a first receiving means on which at least one roll (30) with a film-like medium (20) rolled thereon is attachable and/or clampable, with at least one second receiving means (50) on which at least one second roll (32) is attachable and/or clampable, wherein by means of the device (10) the film-like medium (20) is at least partially rollable off from the first roll (30) and is rollable on the second roll (32), wherein at least one cutting means (60) is provided, by which the film-like medium (20) is cuttable to length in the area between the first and the second receiving means (40, 50), wherein at least one additional clamping means (200) is provided, by which the film-like medium (20) is clampable, tensible, conveyable, and/or guidable in the area between the first and the second receiving means (40, 50) and wherein the at least one additional clamping means (200) comprises at least one driven conveyor shaft (210), wherein the film-like medium (20) is clampable, tensible, conveyable, and/or guidable between the first receiving means (40) and the at least one additional clamping means (200), characterized in that at least one position detecting means (300) is provided, by which the position of the film-like medium (20) is detectable indirectly and/or directly.
2. The device (10) according to claim 1, characterized in that at least one positioning means is provided, by which the film-like medium is positionable.
3. The device (10) according to claim 2, characterized in that the positioning means comprises at least one servomotor, by which the film-like medium (20) is positionable indirectly and/or directly.
4. The device (10) according to any one of the preceding claims, characterized in that by means of the at least one position detecting means (300) the position of the film-like medium (20) regarding the rolled-off-length and/or feed rate is detectable indirectly and/or directly.
5. The device (10) according to any one of the preceding claims, characterized in that the first and/or second receiving means (40, 50) is and/or comprises a tensioning shaft (42, 52), wherein the tensioning shaft (42, 52) has at least one diameter variable portion and a tensioning means, wherein by means of the tensioning means the at least one diameter variable portion is changeable regarding a diameter and/or the at least one additional clamping means (200) has at least one impression cylinder (220), wherein the film-like medium (20) is clampable between the conveyor shaft (210) and the impression cylinder (220) and/or the at least one additional clamping means (200) has at least one deflection cylinder, by which the film-like medium (20) is at least partially deflectable.
6. The device (10) according to claim 5, characterized in that the positioning means comprises at least one first driving means and at least one second driving means, wherein the first driving means is an electric motor, by which the film-like medium (20) is positionable in at least one first step and wherein the second driving means is the servo motor, by which the film-like medium (20) is positionable in at least one second step.
7. The device (10) according to any one of the claims 4 to 6, characterized in that the position detecting means (300) comprises at least one optical and/or mechanical sensing means.
8. The device (10) according to claim 7, characterized in that the optical sensing means is an optical sensor and/or comprises at least one optical sensor, wherein by means of the optical sensor the position of the film-like medium (20) is indirectly and/or directly detectable by detecting at least one edge (25) of the film-like medium (20).
9. The device (10) according to claim 7 or 8, characterized in that the mechanical sensing device is a measuring wheel and/or comprises a measuring wheel, wherein by means of the measuring wheel the position of the film-like medium (20) is detectable indirectly and/or directly by rolling off the measuring wheel on the film-like medium (20) and/or by detecting at least one edge (25) of the film-like medium (20) by means of the measuring wheel.
10. The device (10) according to any one of the claims 4 to 9, characterized in that a first edge (25) of the film-like medium (20) is machine-detectable and/or the device (10) is calibrated relating to this first edge (25) by interacting between the at least one positioning means and the at least one position detecting means (300).
11. The device (10) according to claim 10, characterized in that in a first step the film-like medium (20) is guidable one time or several times above the optical sensor and/or along the optical sensor by means of the servo motor, wherein the first edge (25) of the film-like medium (20) is thereby machine-detectable and/or the device (10) is calibrated relating to this first edge (25).
12. The device (10) according to claim 11, characterized in that in a second step the length of the film-like medium (20) rolled off from the detected first edge (25) of the film-like medium (20) is machine-detectable indirectly and/or directly by means of the measuring wheel.
13. The device (10) according to claim 12, characterized in that in a third step it is machine-checked, if a predetermined and/or predeterminable length was measured and was rolled on the second roll (32) from the first edge (25) up to a cutting edge (27) of the film-like medium (20) created by the cutting means and that by means of the servomotor the predetermined and/or predeterminable length and therefore the cutting edge (27) of the film-like medium (20) to be created is configurable, if the position covered by the first driving means creates or would create a cutting edge differing from the cutting edge (27) to be created.
14. The device (10) according to claim 13, characterized in that in a fourth step the film-like medium (20) is cut to length at the adjusted cutting edge (27) by means of the cutting means (60).
15. The device (10) according to any one of the preceding claims, characterized in that the cutting means (60) has at least one driven or drivable slide, by which the cutting means (60) is transferred from at least one first position in at least one second position and/or that the cutting means (60) is supported within an at least partially pivotable support.

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