DE202013104649U1 - Slitter for cutting cord - Google Patents

Abstract

Slitter for cutting Cordband, comprising a frame, at least one cutting unit, a pivotable about a preferably vertical axis control frame with thereon rotatably mounted guide rollers over which the cutting unit to be supplied Cordband is guided, and means for detecting the position of the edges of the Cordbands, which is arranged upstream of the cutting unit, characterized in that the detection device (9) is preceded by a Cordband (8) leading to a positionally fixed axis rotatable and linearly movable roller (15), which is coupled in motion with the control frame (5).

Description

The invention relates to a slitter for cutting Cordband, comprising a frame, a cutting unit, a pivotable about a preferably vertical axis control frame with it rotatably mounted guide rollers over which the cutting unit to be supplied Cordband is guided, and means for detecting the position of the edges Cordbandes, which is arranged upstream of the cutting unit.

A slitter for cutting cord band, which is required in the tire industry, is a slitting device with which the material web previously produced in a splicing device is separated into two strips or, if several blade units are integrated, several strips. This serves to increase the output of a scissors usually upstream of the slitter, since this provides two strips with one cut.

A slitter usually consists of a frame on which the at least one cutting unit is arranged. On the frame a pivotable control frame is further arranged with rotatably mounted guide rollers, which is pivotable relative to the stationary frame about a preferably vertically extending axis. This pivot axis is located on the inlet side, that is, the other end of the control frame, where the Cordband leaves the control frame in the direction of the cutting unit, pivots and thus can be moved relative to the cutting unit. The Cordband thus runs over the control frame side guide rollers, can relax there and then passes to the cutting device, which is usually two cooperating circular blade.

Of course, the Cordbandstreifen to be produced by the cutter should have a certain, subject to a low tolerance material width, that is, that the cut must ultimately be made as accurate as possible. Since it can not always be ensured that the Cordband can always be supplied in the same position or orientation relative to the cutting unit, a corresponding detection means for determining the position of the edges of the Cordbands, which is connected upstream of the cutting unit, is provided. As a result, it is consequently determined continuously where the edges of the cord band are located relative to the cutting unit, which is naturally fixed in position during the cutting. If this results in that a lateral offset is given relative to the cutting unit, can be counteracted by pivoting the control frame. If the control frame is pivoted, then inevitably the cord band is pivoted to the side. As a result, the cord belt makes a lateral movement relative to the cutting unit, over which the determined transverse offset can be compensated.

If the control frame is pivoted about the vertical axis, it ultimately moves on a circular path, although the pivoting angle is only relatively small and is in the range of less angular degrees. Nevertheless, the cord belt is of course also pivoted along a circular path. Of course this results in a transverse movement of the tape, but at the same time a certain twisting of the tape about the vertical axis, that is, it turns a certain twist. Consequently, the belt tilts something out of the transport plane in which it was previously conveyed, for example, when the control frame was aligned in a 0 ° basic position. This can lead to incorrect measurements in the context of edge detection. Because the edges ultimately not only experience a transverse offset, but one, albeit relatively small, offset in a horizontal plane perpendicular thereto. Now, if a working on an optical measuring principle detection device is used, which operates on the basis of a projection or a shadow image, as is the case for example in camera systems, this additional band or edge offset can affect the projection image. The edges are located differently close to the camera, resulting in aberrations that lead to erroneous edge position detection.

The invention is therefore based on the problem of specifying a slitter in which regardless of whether and at what angle the control frame pivots, always a correct edge detection is possible.

To solve this problem is provided according to the invention in a slitter of the type mentioned that the detection device is preceded by a Cordband leading to a positionally fixed axis rotatable and linearly movable roller, which is coupled in motion with the control frame.

In the case of the slitter according to the invention, an additional roller is provided, via which the cord belt is guided into the detection area of the detection device after leaving the control frame and before it enters or at the latest when it enters. This roller is rotatably mounted and linearly displaceable, that is, it is able to compensate for the resulting by pivoting the control frame, with which it is coupled in motion, resulting lateral offset of the cord band. However, since the roller is only linearly movable, but not pivotable with the control frame, the Cordband runs almost always in the same plane over this role. This in turn means that the Cordband - independent how far the control frame is pivoted - also always positioned in the same plane relative to the detection device. The twisting or twisting of the cord band, which the cord band undergoes in addition to the transverse displacement due to the pivoting of the control frame, is consequently completely compensated for with particular advantage, since this tilting no longer forms on entry into the detection range of the detection device. The cord band is always conveyed in the same plane by the detection device, so that consequently the Cordbandkanten are always in the same plane relative to the detection device or their image plane, regardless of how far now the control frame is pivoted.

It is preferably an optical detection device comprising a camera and a line light source, for example an LED strip, wherein the roller is arranged parallel to and adjacent to the line light source. In particular, when using such an optical detection device with camera and line light source, the projection errors described above arise. The camera is spaced from the line light source, between both runs the cord band. The camera continuously captures an image of the line light source, which is partially covered by the cord ribbon therebetween. Consequently, a light-dark contrast is displayed in the camera image. The edges can be easily determined in the image. However, since the camera is spaced from the line light source, thus also the sensor plane is spaced from the light source, and the Cordband has a certain distance from the line light source, results in conjunction with the opening angle of the camera and the camera distance, a corresponding projection of the edges on the line light source. If there is a twist of the cord band, ie the twist described above, then this projection is naturally flawed, since the edges lie in different positions relative to the camera or light source line. By integration of the roll according to the invention, however, this tilt is completely compensated, the cord is always in the same plane, the edges are therefore always in the same defined, distance relative to the camera and the line light source.

But even with a differently configured detection device, which comprises lying opposite each other on a connecting axis arranged fork-shaped optical measuring devices which embrace the cord band edge side, corresponding recording respectively detection errors may result in the prior art. Because even there varies by the Bandverkippung respectively the Bandtwist the position of the edges relative to the measuring devices, on the one hand, a sensor line on the other side a light bar, z. B. LEDs have. According to the invention, the roller is arranged parallel to the connection axis, so that a complete compensation is also possible here.

The roller itself is suitably rotatably mounted on a roller holder, which in turn is arranged on a linear guide on the frame. Hereby, a simple displacement of the roll in a horizontal direction can be achieved.

The movement of the roller takes place in dependence on the pivoting movement of the control frame after the roller or the roller holder is coupled to the motion control frame. The transverse movement of the roller corresponds to the degree of transverse movement of the control frame within a pivoting movement. In order to realize a simple movement coupling, a driver is expediently provided on the roll holder, with which the control frame is coupled. The driver is connected to a corresponding fastening device on the control frame, so that each Rahmenverschwenkung leads to a roller displacement respectively a displacement of the roller holder. Alternatively, of course, the driver could also be on the control frame, then a corresponding attachment portion for the driver would be provided on the roll holder.

In order to give a possibility of variation with regard to the width of the cut strip sections to be produced, a development of the invention provides that the cutting unit can be moved linearly by means of an actuator perpendicular to the conveying direction of the cord belt. About the actuator, such as an electric motor with associated spindle drive, the cutting unit can be moved horizontally and thus brought into a changed position relative to the Cordband. As a result, different width ratios of the two or else a plurality of strip strips to be produced via the cutting unit can consequently be achieved.

To enable a simple linear displacement, the cutting unit expediently has a carrier which is mounted on the frame via a linear guide. Of course, the actuator itself is positionally fixed on the frame, so that the cutting unit can be moved accordingly via the linear guide.

The cutting unit itself has at least two rotatable about separate axes of rotation circular blades, which cooperate for cutting the Cordbandes, wherein for adjusting the contact pressure of the circular blade against each other an adjusting element over which the axis of rotation of a circular blade is linearly movable, is provided. This adjusting element, for example a corresponding electric motor with associated screw drive, is preferably on Carrier of the cutting unit arranged, thus consequently displaceable with the cutting unit in a linear movement. By means of this adjusting element, one rotary axis can now be moved with the one round blade relative to the other, fixed axis of rotation in the axial direction, so that the pressure with which one round blade presses on the other can be varied.

Conveniently, only one of the axes of rotation is drivable via a drive element, wherein at least one knurled drive plate is provided on each axis of rotation, wherein the drive plates mesh with each other. Preferably, of course, the fixed axis of rotation, which is not axially displaceable to the pressure variation, via the drive element, in turn, a corresponding electric motor, driven. The motion coupling causes both circular blades to rotate.

In a further development of the invention, two incoming cord band between receiving guide elements, which serve to align the incoming Cordbands, may be further provided. These guide elements can be designed as lateral guide plates or as lateral guide fingers. They are preferably adjustable manually or by way of an adjusting element and are preferably coupled in terms of movement, so that the movement of the one guide element inevitably leads to a movement of the other guide element in the opposite direction, so that a defined mutual movement or movement apart is possible. The incoming cord band, which comes from an upstream splicer, inevitably also does not run constantly in the same transverse orientation. About this guide elements a pre-alignment is possible, wherein the guide elements are arranged frame frame side and the control frame upstream.

Finally, at least one guide roller, in particular upstream of the roller, can be driven by a drive, so that a defined cord belt conveyance to the roller is possible.

Further advantages, features and details of the invention will become apparent from the described in the following exemplary embodiment and with reference to the drawings. Showing:

1 the front view of a slitter according to the invention;

2 a schematic representation of the principle of operation of the slitter;

3 a side view of the slitter 1 partially cut;

4 a schematic diagram for explaining the function of the slitter with a view of the control frame;

5 a representation accordingly 4 with from the basic position ( 4 ) deflected tax framework;

6 an end view of the slitter with befindlichem in the basic position control frame according to 4 ;

7 an end view of the slitter according to 5 deflected tax framework;

8th a perspective view of the cutting unit;

9 a partial view of the slitter for showing the motion coupling of control frame and roller;

10 a layout of a plant for carcass production with slitter and

11 a layout illustration of a belt production line with slitter

1 shows a slitter according to the invention 1 comprising a frame 2 , with associated stairs 3 to get into the work area when needed.

On the frame 2 arranged is a cutting unit 4 that in detail in 8th is shown and serves to separate the supplied Cordbandes at least two band sections. Furthermore, a control frame is provided 5 which is about a vertical pivot axis relative to the frame 2 is pivotable. At the control frame 5 are several separate guide rollers 6 arranged (see also 2 ), with the foremost role 7 with its own drive 33 connected and thus is independently rotatable. About the control frame 5 respectively the leadership roles 6 . 7 the cord band is running 8th , please refer 2 , It comes from the control frame 5 in the area of the cutting unit 4 where it is in the two band sections 8a . 8b is shared, as in the schematic diagram according to 2 is apparent.

Furthermore, a detection device is provided 9 , which serves to detect the two side edges of the cord band. The detection device 9 includes a camera 10 and a line light source spaced therefrom 11 , preferably an LED strip. The field of view of the camera is relatively narrow, but wide, making the line light source 11 can be included. As shown in the illustration 2 and 3 can be seen, runs the cord band 8th between camera 10 and Line light source 11 through, leaving the camera 10 when recording the line light source 11 hence one of the cord band 8th shaded area is detected. An associated, not shown in detail control device evaluates the captured images continuously, so that continuously in the images, the two lateral edges of the cord band 8th can be determined.

If it is determined in the context of this edge detection that a transverse offset is given, hence the cord band from the control frame 5 no longer correct to the cutting unit 4 can, for lateral correction of the control frame 5 on which as described the cord band 8th is promoted to the vertical axis 12 be pivoted, see 3 , This is a guide 13 and an associated actuator 14 provided the control framework 5 around the axis of rotation 12 pivoted. Here is the cord band 8th taken along and consequently, as a result of the pivoting movement, also moved transversely, so that its orientation relative to the cutting unit 4 changes.

To avoid that there is a tilting of the cord band around a vertical axis during this pivotal movement, is an additional role 15 provided to the detection device 9 upstream, see in particular 2 , This role 15 is rotatable about a horizontal axis of rotation, it is longitudinally displaceable in the axial direction, which will be discussed below. However, it is not pivotable. That is, their relative position - apart from their horizontal position - relative to the detection device 9 is always maintained. The cord band 8th runs over this role 15 , Now comes to a pivoting of the control frame 5 and thus to a pivoting movement of the cord band 8th So this gets through the role 15 Although compensated for this role, although the transverse displacement resulting from the pivotal movement, by being linearly movable. However, the edge movement accompanying the pivotal movement in a direction perpendicular thereto to the cord band becomes 8th not understood, because the role 15 insofar as it is fixed in position. That is, the cord band 8th always in the same plane relative to the detection device 9 from the role 15 expires. Consequently, therefore, the edges to be detected are always in the same plane, their distance relative to the light bar 11 respectively to the camera 10 does not change, regardless of how the tax frame now 5 is pivoted.

Because the camera 10 captured a projection image in which the two edges, respectively the Cordband as such as a shadow on the plane of the light bar 11 is projected by integrating the role 15 ensures that this projection is always consistent in terms of the distance of the edges, regardless of the tilt angle of the control frame.

The function is in the 4 and 5 to recognize. In 4 is the tax frame 5 on which the cord band 8th lies, not around the axis 12 pivoted. It is in the basic position. Shown is the line light source 11 as well as the camera 10 and their coverage 16 in terms of the two edges 17 of the cord band 8th , Shown are also the corresponding projection points 18 the edges 17 on the line light guide 11 how they use the camera 10 sees.

Should now over the control frame 5 a correction will be made, as in 5 is shown, for example, the control frame 5 - Seen in the belt conveying direction - to the right, so pivoted clockwise, what about the corresponding actuator 14 he follows. The tax framework is obvious 5 diagonally to the frame 2 , The cord band 8th however, it's still about the role 15 which, as indicated by the arrow P, has also been slightly linearly displaced to follow the transverse offset of the cord band resulting from the frame tilt. Nevertheless, it retains its parallel position relative to the line light source 11 respectively to the image plane of the camera 10 at. As a result of the pivoting results in a transverse offset Q, as in 5 shown.

In 5 is, next to the spot 16 as previously stated 4 was given at the local frame position, the now given field 16a shown. The two cord band edges 17 now lead to corresponding new projection points 18 at the level of the line light source 11 ,

The associated, not shown in detail control device - or already the camera 10 itself - is now able, starting from the detected edge points 18 , which are visible in the recorded image, the concrete measuring width, ie the actual distance of the real edges 17 to investigate. This is done in a simple arithmetical way, especially after the position of the roll 15 and with it the cordbands, the distance from the camera 10 to the line light source 11 as well as the opening angle of the camera are known. In 5 as well as in 4 is the respective measurement width M, which corresponds to the concrete edge distance, drawn. This is constant, regardless of the given frame tilt. This follows from that about the role 15 it is ensured that the Cordband when entering the detection range of the detection device 9 always remains in the same level.

The 6 and 7 are they 4 and 5 associated front views. According to 6 , assigned to 4 , is the tax frame 5 in the basic position. The edges 17 of the cord band run straight from the control frame 5 about the role 15 to the detection device 9 ,

7 shows the situation with pivoted control frame 5 who was slightly swung to the left. Also the role 15 was linearly shifted slightly to the left. Obviously show the edges 17 a slightly different course, the transverse offset Q is clearly visible.

Previously described movements are also possible in the opposite direction.

The movement of the role 15 occurs synchronously with the pivoting of the control frame 5 , Both are coupled together. This is done with the help of a driver 19 holding a roll holder 20 on which the role 15 is rotatably mounted, is arranged. The roll holder 20 is via two linear guides 21 on the frame 2 arranged linearly displaceable, see 9 , The driver 19 engages in a holder or recording 22 at the control frame 5 one. Will now be the tax frame 5 pivoted, so at the same time the driver 19 taken along and over him the roll holder 20 besides roll 15 shifted linearly.

For a guide of the cord band 8th already arriving at the control frame 5 to allow, are on the frame 2 lateral guide elements 32 provided, which are coupled and transversely movable, so can be changed in the distance. For example, guide plates or guide fingers are provided.

8th shows in more detail the cutting unit 4 , This includes two circular blades 23 . 24 that interact with each other. Every circular knife 23 . 24 is on a rotation axis 25 . 26 arranged. The rotation axis 25 is about a drive 27 driven. After on each axis of rotation 25 . 26 two knurled driver disks 28 (on the axis of rotation 25 ) and 29 (on the axis of rotation 26 ) are provided, which mesh with each other, performs a rotation of the axis of rotation 25 inevitably also to a rotation of the axis of rotation 26 ,

The rotation axis 26 in turn is linearly displaceable, this is an actuator 30 intended. This can be the contact pressure of the circular blade 24 to the circular knife 23 and thus the cutting force can be adjusted.

The cutting unit 4 includes a carrier 31 at which the axes of rotation 25 . 26 , the drive 27 as well as the actuator 30 are arranged. The carrier 31 is not shown in detail linear guides on the frame 2 horizontally displaceable by means of an actuator to the cutting unit respectively the circular blade 23 . 24 to move in different horizontal positions, so as to the widths of the Cordbandabschnitte to be cut 8a . 8b to be able to vary.

The 10 and 11 show different layouts for complete systems. Same system components are provided here with the same reference numerals. The remarks on the functions of the individual system components apply, although given in detail only to one figure, also for all other layout examples described in the figures.

10 shows an exemplary layout for a carcass plant with slitter.

An unwinding station is provided 36 from which the cord band to be processed is obtained. In the unwinding station, the material rolls to be processed are hung and unwound in a suitable frame. Here, the rubberized Cordbahn to be processed by an intermediate layer (foil, linen or the like) is separated. This intermediate layer is used to prevent the bonding of the rubberized material web. In order to realize different cutting angles, as stated, the unwinder 36 be pivoted, but this is not mandatory. There are different embodiments with respect to such a developer. Known are single unwinder, in which a roll of material can be hung. In a double unwinder with turntable are two rolls of material for hanging, one of them is processed, one of them changed. In addition, a Doppelabwickler with shuttle frame for hanging two rolls of material is known, one is processed, one of them changed. Furthermore, cassette unwinder are known in which a roll of material is hung in a cassette and the cassette is then transported into the unwinder. This list is not exhaustive. The unwinder is pivotable ..

• – Guillotine Scheren mit feststehendem Untermesser und auf und abfahrbarbarem Obermesser,
• – Rundmesserscheren mit einem feststehenden Untermesser und einen daran entlang fahrendem Rundmesser,
• – Scheren mit einem schnell rotierenden Sägemesser (ähnlich einem Kreissägenmesser).

The unwind station 36 follows a pair of scissors 38 for cutting the cord belt coming from the unwinding station. The scissors 38 is used to cut Cordbandstreifen in a defined width and a defined angle. As scissors different types are used:

• - Guillotine scissors with fixed lower blade and upper and lowerable blade,
• - Circular knife shears with a fixed lower blade and a circular blade running along it,
• - Scissors with a fast rotating saw blade (similar to a circular saw blade).

Depending on the material to be processed by the customer, different scissor versions are used. Here it is decisive which cord material (whether textile or steel cord) and at which angle it must be cut ( Plant types carcass or belt), in this example, a pair of scissors for a carcass plant is used.

The scissors table serves as material support 37 and is with the unwinding station 36 connected and pivots if necessary together with this. The material to be processed lies on the scissor table and is lying on the scissors 38 drawn. At the beginning of the table or above is very often a conveyor that transports the beginning of the material in the scissors, z. B. a driven conveyor roller. This is always necessary when the machine is completely emptied and the beginning of a new roll of material in the scissors 38 must be inserted, or if for pivoting the unwind the material a little way out of the scissors 38 was withdrawn.

Relevant for the scissor design is the sequence after cutting. In order to integrate the cut material into the subsequent process with just a few processing steps, further machine components are in use (belts, high holders, splicers, etc.). For this it is necessary to build as close as possible to the lower knife and the machine frame with these components. For this, the material should be moved as little as possible (including drop height) in order to further process it in a cut storage position.

To promote the material through the scissors is in most cases a retraction system 39 for use. It must be driven with a gripping device (pliers) very close to the lower blade. For this purpose, a certain space is required to avoid collisions with the upper blade (or circular blade). This results in different types of scissors.

The withdrawal system 39 serves to convey the material web into the scissors 38 or pull the gripped band through the scissors 38 , Like previously described. The scissors 38 further comprises a conveyor belt which receives the cut Cordbandstreifen and him from the scissors 38 transported. Such a conveyor may be designed as a single band belt, in the form of several band straps or in the form of several band straps with an intermediate high lifting device.

The Cordbandstreifen is then on the first conveyor in the form of a band 40 a splicer, here an overlap splicer 41 given, and fed to the actual splicing unit. This first conveyor 40 can in principle also with the conveyor, the scissors 38 is assigned, coincide. That is, that between the actual overlap splicer 41 and the pair of scissors 38 only one, based on the overlap splicer then first conveyor is located. The overlap splicer 41 serves to connect (purely mechanically, without the aid of additives) the previously cut tape strip. It is pivotable at an angle in order to process the strip material in different angles.

Optionally, another splicing device is a stump splicer form 42 shown in place of the overlap splicer 41 can be used if this type of splice is required.

The overlap splicer 41 respectively its second conveyor (or the alternative butt splicer 42 ) is an optionally provided reassurance role 43 , This is merely a driven roller containing the material coming from the splicer 41 / 42 comes, transported to the next component. In this case, the material undergoes a counterbending by the transport over the roller, by the counterbending, the material contracts in the longitudinal direction. The background is thus the elongation of the material in the longitudinal direction during processing in the splicing device according to the invention 41 / 42 to reduce. However, this role is not mandatory. During the removal is in the scissors 38 already cut the next strip of tape.

The calming roller is then followed by a slitter according to the invention 1 ,

According to 10 then follow two also optional Belegevorrichtungen 48 , In this station, additional rubber strips, one to twelve pieces, are placed on the produced material web. The hang up can be done from above and / or from below. Furthermore, the outer edges of the material web are often bordered, ie a rubber strip is placed from the outer edge with projection and wrapped around the rubber edge to encase the exposed at the outer edge (= cut edge) cords.

In any case, provided are two Aufwickelstationen 49 , In this station, the material webs are again wound on spools with an intermediate layer which prevents sticking. Again, there are various embodiments, ranging from fairly simple single winder, in which the material must be cut manually and wound on a new roll, to fully automatic rewinders, in which no handling operations are necessary for the material handling.

The 11 shows an exemplary layout of a belt system with slitter 1 , Components, as they are already in the layout of 10 are provided, if provided, provided with the same reference numerals, their function is the same as to 10 described.

An unwinding station is provided 36 , which, however, is pivotable here by a significantly larger angle. The unwinder can be of any type, as previously described.

The unwind station 36 follows the scissors 38 , The scissors table serves as material support and is with the unwinding station 36 connected and swings in case of need together her.

The scissors 38 is used to cut Cordbandstreifen in a defined width and a defined angle. As a pair of scissors 38 For example, the previously described types of shears suitable for belt systems can be used.

The scissors 38 follows a withdrawal system 39 as previously described. It serves to convey the material web into the scissors 38 or pull the gripped band through the scissors 38 , Like previously described.

The Cordbandstreifen is then on the first conveyor 40 a splicer 44 , which may be designed as an overlap or butt splicer, given and fed to the actual splicer. The splicer is pivotable at a considerable angle to adjust the required splice angle. It also has a removal belt 45 on, with the spliced band of the downstream component is supplied.

Optionally, the splicing device 44 another band 46 for hand splicing, so be connected downstream for manual connection of the band sections. During this manual processing is the automatic splicer 44 out of order. Such hand splicing is required for certain Cordbandmaterialien, very narrow section widths or on customer request. Optionally, a calming role can also be used here 43 be provided.

Furthermore, an inventive slitter follows 1 , The over the slitter 1 Separation of the spliced material web leads to the fact that in each case two Aufwickelstationen 49 are to be provided, each optionally a Belegevorrichtung 48 and / or a repair tape 47 can be upstream. If errors in the tape are detected, they can be repaired here.

Although in all representations the band is conveyed from right to left, it is of course possible to interpret the layout in reverse, mirror-image execution, so to transport the strip from left to right. All components described as optional can be provided in different combinations together with the essential components. Therefore different layouts can be created from all described components.

Claims (14)

Slitter for cutting Cordband, comprising a frame, at least one cutting unit, a pivotable about a preferably vertical axis control frame with thereon rotatably mounted guide rollers over which the cutting unit to be supplied Cordband is guided, and means for detecting the position of the edges of the Cordbands, which is arranged upstream of the cutting unit, characterized in that the detection device ( 9 ) a cord band ( 8th ) leading to a positionally fixed axis rotatable and linearly movable roller ( 15 ) which is connected to the control frame ( 5 ) is motion coupled. Slitter according to claim 1, characterized in that the detection device ( 9 ) an optical detection device comprising a camera ( 10 ) and a line light source ( 11 ), wherein the roll ( 15 ) parallel and adjacent to the line light source ( 11 ) is arranged. Slitter according to claim 1, characterized in that the detection device ( 9 ) comprises two fork-shaped optical measuring devices lying opposite one another on a connecting axis, which hold the cord band ( 8th ) engage on the edge side, wherein the roll ( 15 ) is arranged parallel to the connection axis. Slitter according to one of the preceding claims, characterized in that the roll ( 15 ) on a roll holder ( 20 ) arranged on a linear guide ( 21 ) on the frame ( 2 ) is stored. Slitter according to claim 4, characterized in that the roll holder ( 20 ) via a driver ( 19 ) with the control frame ( 5 ) is coupled. Slitter according to one of the preceding claims, characterized in that the cutting unit ( 4 ) by means of an actuator perpendicular to the conveying direction of the cord band ( 8th ) is linearly movable. Slitter according to claim 6, characterized in that the cutting unit ( 4 ) a carrier ( 31 ), which via a linear guide on the frame ( 2 ) is stored. Slitter according to one of the preceding claims, characterized in that the Cutting unit ( 4 ) at least two separate axes of rotation ( 25 . 26 ) rotatable circular blades ( 23 . 24 ) used for cutting the cord band ( 8th ), wherein for adjusting the contact pressure of the circular blade ( 23 . 24 ) against each other an actuator ( 30 ), over which the axis of rotation ( 26 ) of a circular blade is linearly movable, is provided. Slitter according to claim 8 and claim 7, characterized in that the actuating element ( 30 ) on the carrier ( 31 ) of the cutting unit ( 4 ) is arranged. Slitter according to one of the preceding claims, characterized in that the cutting unit ( 4 ) two separate rotary axes ( 25 . 26 ) rotatable circular blades ( 23 . 24 ), which cooperate for cutting, wherein only one of the axes of rotation ( 25 ) via a drive element ( 27 ) is drivable and at each axis of rotation ( 25 . 26 ) at least one knurled drive plate ( 28 . 29 ) is provided, which mesh with each other. Slitter according to one of the preceding claims, characterized in that two of the incoming cord band ( 8th ) between receiving guide elements ( 32 ), the orientation of the incoming cord band ( 8th ), are provided. Slitter according to claim 11, characterized in that the guide elements ( 32 ) is done manually or via an actuator. Slitter according to claim 12, characterized in that the two guide elements ( 32 ) are motion coupled. Slitter according to one of the preceding claims, characterized in that at least one, in particular that of the roll ( 15 ) leading role ( 7 ) via a drive ( 33 ) is drivable.

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