DE202018104837U1 - Cutting device for cutting strip material - Google Patents

Abstract

Cutting device for cutting strip material (38), in particular a steel or textile cord band, the cutting device (10) comprising a knife arrangement (12) comprising a movable upper knife (14), a fixed lower knife (16) associated therewith and a drive means (62) for moving the upper blade (14), wherein during at least a part of the movement of the upper blade (14) an intersection (64) along a cutting edge (88) of the lower blade (16) from a front cutting region (56) to a rear cutting region (16) 58) of the knife assembly (12) moves; wherein a band (18) for receiving and for transporting a cut strip material portion (24) of the knife assembly (12) is connected downstream, wherein the band (18) has an upper run (20) extending at a first angle (11) to the horizontal Position, wherein an adjusting device (22) in the region of the knife assembly (12) is arranged and a below the belt (18) arranged supporting member (40), wherein the support member (40) holds the band (18), characterized in that the support member (40) has a first component portion (42) associated with the rear cutting region (58) and a second component portion (44) associated with the front cutting region (56), the first component portion (42) a first axis (28) is pivotally adjustable between the below the first angle (11) extending to the horizontal position and a substantially horizontal position, wherein the second component portion (44) rel ativ to the first component portion (42) about a second axis (50) is pivotally adjustable between the substantially horizontal position and at a second angle (13) to the horizontal position, wherein the second axis (50) between the first component portion (42 ) and the second component portion (44) is arranged.

Description

The invention relates according to the preamble of claim 1, a cutting device for cutting strip material, in particular a steel or textile cord, wherein the cutting device comprises a knife assembly having a movable upper blade, a stationary lower blade associated therewith and a drive means for moving the upper blade, wherein during at least a part of the movement of the upper blade, an intersection moves along a cutting edge of the lower blade from a front cutting region to a rear cutting region of the blade assembly; wherein a band for receiving and for transporting a cut strip material portion of the knife assembly is connected downstream, wherein the band has an upper strand which comprises a running at a first angle to the horizontal position, wherein an adjusting device is arranged in the region of the knife assembly and arranged below the band Support member, wherein the support member holds the tape.

Such a cutting device is for example off DE 10 2007 025 384 B3 known. A strip material unwound from a strip of strip material is gripped with a pair of pliers of a gripper at the leading strip of strip material, after which the pliers are withdrawn, thereby entraining the gripped strip. This is pulled by a knife assembly that cuts off sections of the strip material. The knife assembly comprises a stationary lower knife and a relative to this vertically movable upper knife, which is usually at an angle to the horizontally extending lower blade, so that when cutting results in a migratory point of intersection with a shearing action. Immediately behind the knife assembly, seen in the direction of passage of the tape, a conveyor belt is arranged, which receives the cut strip material portion. The conveyor belt is arranged slightly lower than the cutting plane in which the strip material is located when cutting. As a result, the upper blade can come into coincidence with the cutting edge or the lower blade, without coming into contact with the conveyor belt. In order to reduce the drop height of the cut strip material portion, an adjusting device is provided with which the spatial position of a portion of the upper run of the conveyor belt in the region of the knife assembly can be adjusted. The conveyor belt runs with its upper run at an angle to the horizontal, that is slightly oblique relative to the horizontal orientation of the cutting edge. With the out DE 10 2007 025 384 B3 known adjustment, it is now possible to raise this upper strand section from its oblique spatial position until it is substantially horizontal, so therefore can reduce the distance between the receiving plane of the upper strand and the cutting plane over this. As the cutting motion progresses, the upper run section is then lowered again to avoid contact with the upper knife. For this purpose, the adjusting device has a support component which can be pivoted about an axis, for example a support plate or a support frame.

To make the support member faster and more accurate than in the DE 10 2007 025 384 B3 to position is from the EN 20 2017 102 617 U1 also known to use in each case a drive motor for driving the adjusting device and the drive device of the upper blade. The drive motors are then operated so that the upper blade and the support member move almost uniformly downward.

In the aforementioned cutting devices, there is a relatively large distance between the lower blade and the removal belt during the cutting process. As a result, the achievable accuracy in depositing the sections of the material band is limited to the removal belt, which should be as high as possible for subsequent processing steps.

The object of the invention is therefore to provide an improved cutting device for operating the improved cutting device, which allows a more accurate storage of the material sections on the removal belt.

Main features of the invention are in the characterizing part of claim 1. Embodiments are the subject of the dependent claims.

To solve the problem is in a cutting device for cutting strip material, in particular a steel or Textilcordbands, wherein the cutting device comprises a knife assembly having a movable upper blade, a stationary lower blade associated therewith and a drive means for moving the upper blade, wherein during at least one Part of the movement of the upper blade moves an intersection point along a cutting edge of the lower blade from a front cutting region to a rear cutting region of the blade assembly; wherein a band for receiving and for transporting a cut strip material portion of the knife assembly is connected downstream, wherein the band has an upper strand which comprises a running at a first angle to the horizontal position, wherein an adjusting device is arranged in the region of the knife assembly and arranged below the band Supporting member, wherein the support member holds the tape, according to the invention provided that the Support member having a first component portion, which is assigned to the rear cutting portion, and a second component portion, which is associated with the front cutting region, wherein the first component portion pivotable about a first axis between the extending at a first angle to the horizontal position and a substantially horizontal Position is adjustable, wherein the second component portion relative to the first component portion is pivotable about a second axis between the substantially horizontal position and at a second angle to the horizontal extending position, wherein the second axis between the first component portion and the second component portion is arranged ,

Thus, an adjusting device is provided by the invention, which has a two-part support member, wherein the individual component sections of the support member are mutually pivotable. As a result, the first component section and the second component section can be pivoted independently of each other about the first or second axis relative to the horizontal from the horizontal position. This causes the support member with its first and second component portion before and during the movement of the intersection point along the cutting edge of the lower blade depending on the position of the intersection or moving to the support member upper blade of the outer blade can be moved away.

In this way, the adjusting device can be operated such that the second component section is pivoted about the second axis from the horizontal position to the second angle to the horizontal before and while the intersection passes through the front and rear cutting region. This causes a lowering and tilting of the portion of the upper run corresponding to the second body portion, while the first body portion still remains in the horizontal position to keep the corresponding portion of the upper run near the cut edge of the bedknife. This has the effect that only the second component section with the upper strand escapes the upper knife in the front cutting region, wherein the first component part remains in the horizontal position and then also deviates downwards as the cutting movement progresses. This reduces the drop height of the cut strip material portion between the cut edge of the lower knife and the upper run. This increases the accuracy of the placement of cut strip material sections on the strip in the cutting area, since the drop height is reduced over the entire cutting area.

For this purpose, the adjustment device can in particular be operable such that the first component section is pivoted about the first axis from the horizontal position to a first angle to the horizontal, before and while the intersection passes through the rear section.

In this way, the first component section deviates from the descending upper blade only when the point of intersection is shortly before the rear section or above the second axis and then reaches the rear section. This prolongs the retention of the first component portion in the horizontal position and thus the retention of the upper run on the first component portion in the horizontal position, thus minimizing the drop height and further increasing the accuracy of deposition of the cut tape material portion onto the tape.

The first and the second axis are preferably formed parallel to each other. This causes a simple guidance of the upper strand. In particular, in conjunction with a uniform lowering of the upper strand so the deposition of falling of the cutting edge of the lower blade cut strip material sections can be performed with high accuracy.

The second axis may be formed by a hinge connection between the first component portion and the second component portion. The articulated connection brings about an easily produced, pivotable connection between the first component section and the second component section, wherein the second axis is arranged between the first component section and the second component section. In this case, the articulated connection can be designed such that it pivots only between an extended position, in which the first component section and the second component section form a plane, and an angled position, in which the second component section pivots at a greater angle to the horizontal than the first component section is, can be panned.

The adjusting device may have an adjusting device for adjusting the position of the second axis. In this way, in particular the position of the second axis in a vertical direction or the hinge connection can be selectively influenced in order to effect a pivoting of the first component portion about the first axis. In this case, the adjusting device may be designed so that when extending the adjusting device, the second axis is raised and the second axis is lowered when retracting the adjusting device.

The adjusting device may, for example, have a pneumatic actuator or an electric actuator. Alternatively, you can For example, a hydraulic actuator can be provided.

The actuator is preferably operable to hold the second axis in a fixed position while the point of intersection traverses at least a portion of the frontal section and lowers the second axis before and while the point of intersection traverses the rearward section. The movement of the first component section then preferably begins before the intersection leaves the front cutting area. In this way, the first component portion can remain relatively horizontal for a relatively long time and the second component portion can be guided by pivoting about the second axis in the region of the point of intersection relatively close to the cutting edge. Only shortly before leaving the first cutting area, ie just before the point of intersection has arrived above the second axis, does a lowering movement of the first component section about the first axis begin.

In a preferred embodiment, the adjusting device is connected to a hinge lever and pivotally mounted on the frame, wherein the hinge lever is pivotally connected by means of a lever member to the second axis. In this way, a flexible mounting of the adjusting device is provided, which causes the adjusting device in each angular position of the second component portion can exert a force in the vertical direction on the second axis. Thus, the second axis can remain in the raised position by means of the adjusting device, while the second component section is lowered. The first component section, which is arranged between the first axis and the second axis, then initially remains in the almost horizontal position.

The front and the rear cutting area are preferably formed approximately the same length. The division into the front and rear cutting area is determined by the position of the second axis in relation to the cutting edge. The second axis is arranged below the transition from the first to the second cutting region. An adaptation of the respective lengths of the cutting region can thus be effected by a corresponding arrangement of the second axis in a central region of the knife assembly. As a result, the drop height in the cutting areas is subject to only slight fluctuations and is essentially constant.

The adjusting device preferably has a pivoting device for pivoting the second component section about the second axis. For this purpose, the pivoting device may, for example, have a drive motor, which is connected to the second component section by means of a crank drive. Thus, the second component portion can then be pivoted about the second axis relative to the horizontal.

The support member may include a third member portion disposed outside the region of the knife assembly below the band, the second member portion being pivotally supported relative to the third member portion about a third axis, the third axis being disposed between the second and third member portions. wherein the third component portion is pivotally mounted about a fourth axis between the extending at a first angle to the horizontal position and a third angle to the horizontal position. The third component section prevents the sections of the upper run of the band, which are not held by the support member, from sagging.

This causes the removal of the cut strip material portion without displacement of the position of the strip material portion by a sagging upper strand takes place.

For operating a cutting device according to the preceding description, the following steps can be carried out: pivoting of the first component portion about the first axis in the substantially horizontal position and pivoting of the second component portion about the second axis in the substantially horizontal position, cutting strip material by means of the cutting device by moving the upper blade to the lower blade, wherein during at least a part of the movement of the upper blade, an intersection moves along a cutting edge of the lower blade from a front cutting region to a rear cutting region of the blade assembly, and picking up a cut strip material section by means of the ribbon.

Preferably, the second component section is pivoted about the second axis from the horizontal position to the second angle to the horizontal, before and while the point of intersection passes through the front and rear sectional area.

Further, a pivoting of the first component portion about the first axis from the horizontal position to the first angle to the horizontal, before and while the intersection traverses the rear section.

• 1 eine schematische Darstellung einer Vorderansicht des Bandes in unter dem ersten Winkel verlaufender Stellung;
• 2 eine schematische Draufsicht zu 1;
• 3 eine weitere schematische Darstellung der Streckenverhältnisse des Bandes in Bezug zum Untermesser während eines Schneidvorgangs;
• 4 eine schematische Darstellung des Bandes in im Wesentlichen horizontaler Stellung vor einem Schneidvorgang;
• 5 eine schematische Darstellung des Bandes am Beginn des Schneidvorgangs;
• 6 eine schematische Darstellung des Bandes während sich der Schnittpunkt durch den vorderen Schnittbereich bewegt;
• 7 den weiteren Verlauf zu 6;
• 8 den weiteren Verlauf zu 7 während sich der Schnittpunkt durch den hinteren Schnittbereich bewegt;
• 9 den weiteren Verlauf zu 8 am Ende des Schneidvorgangs;
• 10 eine schematische Darstellung des Bandes in im Wesentlichen horizontaler Stellung;
• 11 eine schematische Darstellung des Bandes in abgesenkter Stellung;
• 12 einen vergrößerten Ausschnitt einer Vorderansicht des Stellantriebs des ersten Bandabschnitts aus 10;
• 13 eine schematische Darstellung einer Schneidanlage ohne Slitter;
• 14 eine schematische Darstellung einer Schneidanlage mit Slitter; und
• 15 eine schematische Darstellung von Schritten zum Betreiben der Schneideinrichtung.

Further features, details and advantages of the invention will become apparent from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. Show it:

• 1 a schematic representation of a front view of the band in the first angle extending position;
• 2 a schematic plan view to 1 ;
• 3 a further schematic representation of the distance conditions of the belt relative to the lower blade during a cutting operation;
• 4 a schematic representation of the band in a substantially horizontal position before a cutting operation;
• 5 a schematic representation of the tape at the beginning of the cutting process;
• 6 a schematic representation of the belt while the intersection moves through the front cutting area;
• 7 the further course too 6 ;
• 8th the further course too 7 while the point of intersection moves through the rear cutting area;
• 9 the further course too 8th at the end of the cutting process;
• 10 a schematic representation of the band in a substantially horizontal position;
• 11 a schematic representation of the tape in the lowered position;
• 12 an enlarged section of a front view of the actuator of the first band section 10 ;
• 13 a schematic representation of a cutting system without slitter;
• 14 a schematic representation of a cutting system with slitter; and
• 15 a schematic representation of steps for operating the cutting device.

As in 1 is shown, the cutting device in the following in its entirety by the reference numeral 10 shown.

The cutting device 10 is in 1 in connection with a downstream splicing device 34 shown the explanation of the cutting device 10 to facilitate.

The cutting device 10 includes a knife assembly 12 , which is a movable upper knife 14 and a fixed position lower blade 16 having. The upper knife 14 is scissor-like at an angle to the lower knife 16 arranged and can become the lower knife 16 be moved vertically to perform a cutting operation.

Next, the cutting device 10 a band 18 for receiving and for transporting a cut strip material section 24 on, taking the tape 18 an upper strand 20 and the knife assembly 12 is downstream. Accordingly, a band material section falls 24 that of the knife assembly 12 is cut on the upper strand 20 of the band 18 , The ribbon 18 then transports the cut strip material section 24 in the with the arrow 17 marked direction to the conveyor belt 36 the splicing device 34 , This shows the band 18 a slight inclination to the horizontal at a first angle 11 on ( 3 ).

Due to this inclination, the band runs 18 almost parallel to the inclined upper blade 14 ,

Below the upper run 20 in the area of the knife arrangement 12 has the cutter 10 an adjusting device 22 on. The adjusting device 22 includes a support member 40 for supporting the upper strand 20 , At least part of the support component 40 is about a first axis 28 at a knife-end of the tape 18 is arranged, swiveling and can therefore raise and lower the upper strand 20 in the area below the knife assembly 12 cause. During lifting and lowering, the angle of the upper run becomes 20 at least in the area of the knife arrangement 12 changed over a horizontal.

For adjusting the support component 40 are a pivoting device 32 and an actuator 30 intended.

A frame 26 forms a framework on which components of the adjustment 22 , the cutting device 10 and / or the band 18 as well as the swiveling device 32 are attached. Thus, in the example shown, the first axis 28 with the frame 26 connected.

2 shows a plan view of the cutting device described above 1 , Here is a gripping device 48 recognizable for gripping band material 38 is formed to the strip material 38 through the knife assembly 12 , in particular one between the upper blade 14 and the bottom knife 16 to pull trained knife gap. The track that the band material 38 by means of the gripping device 48 is determined determines at which point the band material section 24 by means of the knife arrangement 12 from the strip material 38 is cut.

The lower knife 16 and the adjusting device 22 the cutting device 10 are in 3 shown in more detail.

3 shows schematically the lower blade 16 in that on its upper side there is a horizontally running cutting edge 88 having. By the position of a second axis 50 one from the first axis 28 coming first component section 42 with a second component section 44 of the support member 40 pivotally interconnects, is the cutting edge 88 in a front cutting area 56 and a rear cutting area 58 divided, which are usually more or less the same length. Optionally, the support member has a third component portion 46 up, over a third, floating axle 52 to the second component section 44 followed. The floating bearing of the third axis 52 allows compensation by pivoting the second component section 44 and the first component section 42 occurring differences in length. At his from the third axle 52 opposite end is the third component section 46 over a fourth axis 54 on the frame 26 attached.

For cutting, the knife gap between the upper knife 14 and lower knife 16 by a vertical movement of the upper knife 14 opposite the stationary lower blade 16 closed. Because the upper knife 14 opposite the horizontally running cutting edge 88 of the lower knife 16 inclined, it moves an intersection point along the cutting edge 88 only through the front cutting area 56 and then through the back cutting area 58 , In one position 60 In this case, a strip material is cut first.

The first component section 42 is the rear cutting area 58 and the second component section 44 the front cutting area 56 assigned. They both together form a storage area in which the strip material sections 24 be deposited after and during cutting.

The third component section 46 of the support member 40 is in 3 at the first angle 11 arranged to the horizontal. The horizontal is represented by the dashed line. A drop height from the cutting edge 88 results from a distance 19 to the upper run plus a gap 25 , The distance 19 corresponds to one by the inclination of the second component section 44 caused deviation to the horizontal, in a plane with the second axis 50 runs. The distance 25 corresponds to the distance between this horizontal and the cutting edge 88 , Near the second axis 50 is the height of fall from the cutting edge 88 out through the distance 23 symbolizes.

In the in 3 illustrated state is the first component section 42 in a nearly horizontal position, in which he is more or less parallel to the cutting edge 88 runs. Dash-2-dotted is the course of the upper strand, if between the first component section 42 and the second component portion 44 no second joint 50 would be provided. It can be seen, as the height of fall from the cutting edge 88 through the second joint 50 in that a pivoting between the first component section 42 and the second component portion 44 allows, is reduced.

The 4 to 9 represent schematically individual phases of the cutting process. It is before the cutting process by means of the gripping device 48 the band material 38 in the desired length through the knife assembly 12 been drawn.

In 4 is the upper knife 14 before cutting over the bottom knife 16 arranged with open knife gap. The upper knife 14 is oriented inclined to the horizontal. The first component section 42 and the second component section 44 are arranged in the almost horizontal position, so that the drop height over the entire length of the cutting edge 88 as low as possible. This takes the third component section 46 by lifting the second component section 44 and thus the third axis 52 a position in which the third component section 46 at an angle 15 to the horizontal about the fourth axis 54 is pivoted.

The upper knife 14 is by means of a drive device shown schematically 62 relative to the lower knife 16 emotional. The drive device 62 has a crank mechanism 92 on, with the upper knife 14 connected is. The crank position of the crank mechanism 92 determines the position of the upper knife 14 relative to the lower knife 16 ,

While lowering the upper knife 14 in the direction of the lower knife 16 arises at a cutting edge 88 of the lower knife 16 an intersection 64 that goes along the cutting edge 88 of the lower knife 16 through the front cutting area 56 , then through the rear cutting area 58 moves when the upper knife 14 further relative to the lower knife 16 is moved. The starting point where the band material 38 is incised, is with the reference character 60 designated.

In 5 is the upper knife 14 lowered so far that the actual cut in the strip material 38 begins that has a smaller width than the upper blade 14 and the bottom knife 16 ,

With the beginning of the incision at 60 or shortly before and when the point of intersection 64 from the starting point 60 moved away and in the front cutting area, the second component section 44 around the second axis 50 by means of the pivoting device 32 panned down ( 6 ), while the first component section 42 is still aligned horizontally. For this, the pivoting device 32 a crank mechanism 90 on, with the second component section 44 near the third axis 52 is connected and depending on the position of the crank mechanism 90 the height of the third axis 52 changed. This is the inclination of the second component section 44 opposite to the horizontal and thus a distance to the cutting edge 88 influenced, the second axis 50 initially held in unchanged position.

In the presentation after 7 the intersection is at a height with the second axis 50 , ie in the transition from the front cutting area 56 in the rear section 58 , To a collision of the upper knife 14 To avoid with the upper run, was just before a pivoting of the first component section 42 around the first axis 28 initiated. The pivoting of the first component section 42 around the first axis 28 takes place by means of the adjusting device 30 between the first component section 42 and the second component portion 44 acts.

The in the 6 and 7 illustrated double-dashed line indicates the fictitious position of a trained according to the prior art support member, the corresponding support member at the respective position of the intersection 64 would have. It can clearly be seen that the second component section 44 and the first component section 42 are arranged above the colon dashed line. It is clear that the drop height of the cut strip material section 24 along the cutting edge 88 with the present invention is lower than in the prior art.

With further progress of the upper knife 14 in the direction of the lower knife 16 and thus the point of intersection through the rear cutting area 58 , now also has the first component section 42 continue to be pivoted to a collision with the upper knife 14 to avoid. In 8th is the pivoting of the first component section 42 shown during the intersection 64 approximately in the middle of the rear section 58 located. The first component section 42 and the second component section 44 are now again closer to the colon dashed line. Nevertheless, both are still located above this colon dash line, so even in this arrangement the drop height of cut strip material sections 24 less than in the prior art.

9 shows the end of the cutting process, with the intersection point 64 the rear cutting area 58 has wandered through and the first component section 42 and the second component section 44 form a plane that is arranged at the first angle to the horizontal. The band material section 24 is at this stage of the cutting process of the strip material 38 separated and the cutting process completed.

In 10 is the adjusting device 22 on the tape 18 shown in more detail. The support component 40 is shown here in the raised position, that is, that the first component section 42 and the second component section 44 are arranged horizontally. This is also the position of the crank mechanism 90 can be seen, the second component section 44 near the third axis 52 raising. Next is the adjusting device 30 shown, for pivoting the second component section 44 in relation to the first component section 42 around the second axis 50 serves. Both the adjusting device 30 as well as the pivoting device are doing in the "high position".

11 shows the adjustment 22 in a lowered position, wherein the support member 40 at the first angle 11 is arranged to the horizontal. The first component section 42 , the second component section 44 , and the third component section 46 form in 11 a level. The crank mechanism 90 the pivoting device 32 is arranged so that the second component section 44 through the crank mechanism 90 is not raised and the adjusting device 30 is retracted, so that the second axis 50 not raised.

12 shows a more detailed representation of the section A from 10 , The adjusting device 30 is pivotable on the frame 26 stored. The adjusting device 30 includes an actuator that can be operated pneumatically, hydraulically or electrically and with a toggle lever 70 connected is. The articulated lever 70 is rotatable on the frame 26 stored and a lever element 68 with the second axis 50 connected.

The adjusting device 30 is shown in the extended position. The articulated lever 70 presses the lever element 68 in the direction of the second axis 50 , When the adjusting device 30 is retracted pivots the toggle 70 from the illustration in 12 seen in a clockwise direction. This causes the lifting element 68 from the second axis 50 is pulled away whereby the second axis 50 is lowered.

In this way, the height or the position of the second axis 50 by means of the adjusting device 30 to be changed. So can the second axis 50 held in position while the second component section 44 around the second axis 50 is pivoted.

The 13 and 14 show different layouts for complete systems, the cutting devices 10 exhibit. Same system components are here provided 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.

13 shows an exemplary layout for a belt system without slitter. An unwinding station is provided 72 , from which the band material to be processed 38 , z. B. cord band, is obtained. In the unwinding station 72 be mounted in a suitable frame, the material rolls to be processed and unwound. In this case, the gummed strip material to be processed is separated from an intermediate layer (foil, linen or the like). This intermediate layer is used to prevent the bonding of the rubberized material web. In order to realize different cutting angles, the unwinder 72 be pivoted, but this is not mandatory. There are different embodiments with respect to such a developer 72 , 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 then the cassette in the unwinder 72 is transported. This list is not exhaustive. The unwinder is pivotable.

The unwind station 72 follows a cutting device according to the invention 10 used for cutting of the unwinding station 72 upcoming band material 38 serves. The cutting device is used for cutting strip material sections 24 , which in this example can be Cordbandstreifen, in a defined width and a defined angle.

The scissors table serves as material support 74 and is with the unwinding station 72 connected and pivots if necessary together with this. The material to be processed lies on the scissor table and is lying on this in the cutting device 10 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 cutting device 10 must be inserted, or if for pivoting the unwinder, the material a bit far from the cutting device 10 was withdrawn.

Relevant for the cutter design is the process after cutting. To integrate the cut material into the subsequent process with just a few processing steps, further machine components are in use. 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 the material through the cutting device 10 to promote, the pulling device is used. The pulling device can be used as a gripping device 48 be formed and can as part of the cutting device 10 for conveying the material web into the cutting device 10 Serve or can the gripped band through the two knives 14 . 16 pull. The cutting device 10 also has a band 18 on, which receives the cut Cordbandstreifen and him from the cutting device 10 transported.

The Cordbandstreifen is then on the tape 18 given and a splice unit 34 fed. The splicer 34 serves for purely mechanical connection without the aid of additives of the previously cut tape strips. The splicer can be pivoted at an angle in order to process the strip material at different angles.

Optionally, the splicing device 34 another band 76 for hand splicing, so for manual connection of the strip material sections 24 be downstream. During this manual processing is the automatic splicer 34 out of order. Such hand splicing is required for certain Cordbandmaterialien, very narrow section widths or on customer request.

Optionally, a reassurance role 78 be provided. In this case, the material undergoes a counterbending through the transport via the roller. Due to 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 splicer 34 to reduce. However, this role is not mandatory.

Furthermore, also optional, is a repair tape 80 intended. If errors in the tape are detected, they can be repaired here.

According to 13 follows then also an optional documenting device 82 , 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 protrusion and order the rubber edge is laid around to cover the exposed at the outer edge, which corresponds to the cutting edge at the strip material sections, exposed cords.

In any case, provided a Aufwickelstation 84 , In this station, the 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 manually cut and wound on a new roll, to fully automatic rewinders, in which no handling operations are necessary for the material handling.

14 finally shows a plant layout for a belt system accordingly 13 , but here is also a Slitter 86 integrated. The separation of the spliced material web carried out over this leads to the fact that in each case two Aufwickelstationen 84 are to be provided, each optionally a Belegevorrichtung 82 and / or a repair tape 80 can be upstream.

Although in all representations the band 18 is conveyed from right to left, it is of course possible to interpret the layout in reverse, mirror-image design, so the band material section 24 to transport from left to right. All components described as optional can be provided in different combinations together with the other components. Therefore different layouts can be created from all described components.

In 15 For better understanding, a method 100 of operating a cutter is described 10 illustrated by a schematic flow chart. The cutting device 10 can be formed according to the above description.

In a first step 102, the first component section 42 around the first axis 28 and the second component section 44 around the second axis 50 pivoted in a substantially horizontal position. The pivoting of the first component section 42 in step 102, by means of the adjusting device 30 carried out. The pivoting of the second component section 44 can by means of the pivoting device 32 be performed.

The band material 38 is by means of the cutting device by a cutting movement 104 of the upper blade 14 relative to the lower knife 16 cut. It moves during at least part of the movement of the upper blade 14 an intersection 64 along a cutting edge 88 of the lower knife 16 through a front cutting area 56 and a rear cutting area 58 the knife assembly.

In this case, during the movement of the upper blade to the lower blade in a second step 108, the second component portion about the second axis 50 pivoted from the nearly horizontal position in an increasing angle to the horizontal. The second component section 44 becomes thereby opposite the cutting edge 88 lowered and can thus avoid the upper knife. The second step 108 preferably begins shortly before the upper blade 14 in overlap with the lower blade 16 comes. At the latest, the pivoting of the second component section 44 but start as soon as the band material 38 is cut.

In a further step 110, a pivoting of the first component section begins during the progressive cutting movement 104 with a time delay t 42 around the first axis 28 from the almost horizontal position to an increasing angle to the horizontal. The steps 108 and 110 are superimposed, the pivoting of the first component section 42 takes place with simultaneous movement of the second component section 44 , The first component section 42 and the second component section 44 are thus moved together to a lower position, in which a distance from the cutting edge 88 is maximum. The step 110 and thus the pivoting of the first component section 42 around the first axis 28 takes place during the intersection 64 the rear cutting area 58 crosses. The pivoting of the first component section 42 preferably starts already shortly before the point of intersection 64 from the front cutting area 56 in the rear section 58 passes.

The cut strip material section is then received in a downstream step 106 by a belt for receiving and transporting strip material sections. The belt transports the cut strip material section to further processing plants, in which the strip material section is connected, for example, with further strip material sections to form an endless belt.

The invention is not limited to one of the above-described embodiments, but can be modified in many ways.

All of the claims, the description and the drawings resulting features and advantages, including design details, spatial arrangements and method steps may be essential to the invention both in itself and in various combinations.

LIST OF REFERENCE NUMBERS

10

cutter

11

first angle

12

blade assembly

13

second angle

14

upper blade

15

third angle

16

lower blade

17

transport direction

18

tape

19

distance

20

obertrum

22

adjustment

23

distance

24

Band material section

25

distance

26

frame

27

storage area

28

first axis

30

setting device

32

Pivot means

34

splicing

36

conveyor belt

38

band material

40

supporting member

42

first component section

44

second component section

46

third component section

48

gripper

50

second axis

52

third axis

54

fourth axis

56

front cutting area

58

rear cutting area

60

Starting point of the cut

62

driving means

64

intersection

66

articulation

68

lever member

70

articulated lever

72

uncoiling

74

material support

76

Band for hand splicing

78

calming role

80

repair tape

82

topping apparatus

84

coiling

86

Slitter

88

cutting edge

90

crankshaft

92

crankshaft

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102007025384 B3 [0002, 0003]
• DE 202017102617 U1 [0003]

Claims (10)

Cutting device for cutting strip material (38), in particular a steel or textile cord band, the cutting device (10) comprising a knife arrangement (12) comprising a movable upper knife (14), a fixed lower knife (16) associated therewith and a drive means (62) for moving the upper blade (14), wherein during at least a part of the movement of the upper blade (14) an intersection (64) along a cutting edge (88) of the lower blade (16) from a front cutting region (56) to a rear cutting region (16) 58) of the knife assembly (12) moves; wherein a band (18) for receiving and for transporting a cut strip material portion (24) of the knife assembly (12) is connected downstream, wherein the band (18) has an upper run (20) extending at a first angle (11) to the horizontal Position, wherein an adjusting device (22) in the region of the knife assembly (12) is arranged and a below the belt (18) arranged supporting member (40), wherein the support member (40) holds the band (18), characterized in that the support member (40) has a first component portion (42) associated with the rear cutting region (58) and a second component portion (44) associated with the front cutting region (56), the first component portion (42) a first axis (28) is pivotally adjustable between the below the first angle (11) extending to the horizontal position and a substantially horizontal position, wherein the second component portion (44) re relative to the first component portion (42) about a second axis (50) is pivotally adjustable between the substantially horizontal position and at a second angle (13) extending to the horizontal position, wherein the second axis (50) between the first component portion (42 ) and the second component portion (44) is arranged. Cutting device after Claim 1 characterized in that the adjusting means (22) is operable to pivot the second component portion (44) about the second axis (50) from the horizontal position to the second angle (13) to the horizontal before and during the intersection (64th ) traverses the front cutting region (56) and the rear cutting region (58). Cutting device after Claim 1 or 2 characterized in that the adjusting means (22) is operable to pivot the first component portion (42) about the first axis (28) from the horizontal position to the first angle (11) to the horizontal before and during the point of intersection (64 ) traverses the rear section (58). Cutting device according to one of Claims 1 to 3 , characterized in that the second axis (50) is formed by a hinge connection (66) between the first component portion (42) and the second component portion (44). Cutting device according to one of Claims 1 to 4 , characterized in that the adjusting device (22) has an adjusting device (30) for adjusting the position of the second axis (50). Cutting device after Claim 5 , characterized in that the adjusting device (30) is operable such that the adjusting device (30) holds the second axis (50) fixed in position, while the intersection (64) passes through the front cutting region (56), and the second axis (50) lowers before and while the intersection (64) traverses the rear cutting region (58). Cutting device after Claim 5 or 6 , characterized in that the adjusting device (30) with a hinge lever (70) is connected and is pivotally mounted on the frame (26), wherein the hinge lever (70) by means of a lever member (68) with the second axis (50) is connected. Cutting device according to one of Claims 1 to 7 , characterized in that the front cutting area (56) and the rear cutting area (58) are formed approximately equal length. Cutting device according to one of Claims 1 to 8th , characterized in that the adjusting device (22) has a pivoting device (32) for pivoting the second component section (44) about the second axis (50). Cutting device according to one of Claims 1 to 9 characterized in that the support member (40) has a third component portion (46) located outside the region of the knife assembly (12) below the belt, the second component portion (44) being spaced about a third relative to the third component portion (46) Axis (52) is pivotally mounted, wherein the third axis (52) between the second and the third component portion (44, 46) is arranged, wherein the third component portion (46) about a fourth axis (54) between the at a first angle (11) extending to the horizontal position and a third angle (15) to the horizontal extending position is pivotally mounted.

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