EP3689562A1 - Cutter bar, cutting bar and adjustment device for simplified adjustment of the measurement height - Google Patents
Cutter bar, cutting bar and adjustment device for simplified adjustment of the measurement height Download PDFInfo
- Publication number
- EP3689562A1 EP3689562A1 EP20151137.5A EP20151137A EP3689562A1 EP 3689562 A1 EP3689562 A1 EP 3689562A1 EP 20151137 A EP20151137 A EP 20151137A EP 3689562 A1 EP3689562 A1 EP 3689562A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- knife
- knife bar
- stop
- cutting edge
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2614—Means for mounting the cutting member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/255—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member for thin material, e.g. for sheets, strips or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
- B26D1/40—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
- B26D1/405—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
- B26F1/20—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material with tools carried by a rotating drum or similar support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
- B26D1/36—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and rotating continuously in one direction during cutting, e.g. mounted on a rotary cylinder
- B26D1/365—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and rotating continuously in one direction during cutting, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
- B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
- B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations
Definitions
- So-called cutting knife or perforating knife cylinders which rotate about an axis of rotation, are used in particular in the case of apparatuses such as cross-cutting devices and / or folding units of web-fed printing machines for cross-cutting and / or perforating transversely to the running direction of, in particular, web-shaped materials such as paper, nonwoven or plastic webs , wherein the axis of rotation is perpendicular to the direction of transport of the web or sheet material guided past the cutting or perforating cylinder, so that the circumferential direction of the cutting or perforating cylinder matches the direction of transport of the material passed therethrough.
- a cutting cylinder which is also called a cutting knife cylinder
- at least one knife bar is arranged on the lateral surface substantially parallel to the axis of rotation, the knife bar being brought into operative connection with the material to be cut for complete or partial severing.
- the knife bar is essentially a sheet metal bar made of knife steel with a knife bar length which is delimited by two outer edges, at least one longitudinal edge being designed as a cutting edge on which adjacent teeth are formed. The cutting edge or teeth are ground at least on one side and is therefore extremely sharp.
- the knife bar interacts with a counter bar, which usually consists of an elastic material such as foamed or non-foamed polyurethane.
- the at least one counter bar is fastened on a counter cylinder opposite the cutting cylinder in relation to the material to be cut.
- the knife bar essentially consists of a base body and a clamp strip that can be clamped thereon, the knife strip being fixed between the base body and the clamp strip. To replace the knife bar, only the at least one knife bar on the cutting cylinder has to be replaced.
- an exact adjustment of the male connector to the cutting cylinder and therefore an exact adjustment of the male connector to the cutter bar is absolutely necessary due to the defined contact surfaces between the cutter bar and the cutting cylinder .
- adjustment devices are known from the prior art, in which the cutter bar with the preassembled cutter bar is mostly inserted.
- the correct knife height i.e. the correct projection of the cutting edge over the main body of the knife bar or the correct distance from the cutting edge to the support surface of the knife bar in the knife cylinder, the cutting edge is pressed against a surface with a defined position to the knife bar and then the knife bar is in the Knife beam clamped.
- the adjustment surface consists of a material of medium hardness, such as a dimensionally stable plastic or aluminum, the area of the adjustment surface that comes into contact with the cutting edge wears out over time due to the teeth of the cutting edge, which are usually very sharp-edged, so that the accuracy of the knife height over the course of time Time is decreasing.
- the invention is therefore based on the object of providing a solution with which an exact adjustment of the knife height is ensured over the entire service life of the adjusting device or the knife bar, or even the use of an adjusting device can be dispensed with entirely.
- the device according to the invention comprises a knife bar, in which at least one stop surface is provided in the area of at least one outer edge is formed, as well as an adjusting device, which comprises at least one stop against which the at least one stop surface of the male connector can be adjusted and a knife bar, which comprises at least one stop, against which the at least one stop surface of the male connector can be adjusted.
- Such a design of the cutting bar in interaction with a corresponding setting device or a corresponding cutter bar has the advantage that for adjusting the cutter bar it no longer comes into contact with another object, so that on the one hand the risk of losing the sharpness of the cutting edge or the teeth there no longer exist.
- no additional adjustment device is required, which considerably simplifies the replacement and adjustment of the cutter bar and eliminates sources of error.
- an abutment surface is formed on the male connector in the area of both outer edges or at a corresponding distance therefrom.
- the knife bar to be adjusted in the knife bar can thus be set with two stop faces on two associated stops either of the adjusting device or the knife bar, so that the exact positioning of the knife bar relative to the knife bar is ensured.
- the stop surfaces can be designed such that, on the one hand, the protrusion of the male connector over the cutter bar is constant over the entire length, but it is also possible to design the majority of the stop surfaces in such a way that an exact positioning of the male connector along its length relative to the cutter bar is ensured is.
- the at least one stop surface is at a defined distance from the cutting edge. Due to the distance between the cutting edge and the at least one stop surface and, in particular, due to the close tolerance of this distance, a very exact and always consistently exact positioning of the male connector to the cutter bar and thus to achieve a consistently high cutting quality.
- the at least one stop surface is designed as a recessed cutout to the cutting edge.
- the cutting edge is the most elevated point of the cutter bar and there is no additional interference contour when installing the cutter bar in the cutter bar or when installing the cutter bar in the cutting cylinder, which must be taken into account in particular when the cutting cylinder interacts with the counter cylinder.
- the knife bar 10 shown as an example consists of an L-shaped base body 11 and a clamping strip 12, so that a knife strip 1 can be clamped between the base body 11 and the clamping strip 12.
- the clamping is generally carried out over a plurality of the knife bar length attached screws, which are screwed, for example, into the base body 11 and press the corresponding through-hole clamping strip 12 against the blade strip 1, so that the blade strip 1 is clamped between the base body 11 in order to be able to absorb the cutting forces.
- This screw or clamp connection is in Fig. 1 shown schematically as a semicolon line.
- the male connector 1, which in an embodiment, as is known from the prior art, in Fig. 6 is usually made of an approximately 1 to 2 millimeter thick sheet of corresponding high-strength knife or spring steel and usually has a height of approximately 30 to approximately 50 millimeters, these dimensions not being relevant to the invention.
- the knife bar length L is usually only slightly shorter than the length of the knife bar 10 to ensure clamping over the entire knife bar length L.
- the base body 11 comprises at least one pressure screw 13 which presses against the knife bar 1, which is shown in FIG Fig. 1 is only shown in principle.
- Fig. 2 exemplarily and schematically represented.
- the cutter bar 10 is placed in an adjusting device 20, which essentially consists of a base plate 21, a side panel 22 and a cover plate 23, the surface of which facing the cutter bar 10 serves as an adjustment surface 24.
- the male connector 1 is moved with the at least one pressure screw 13 in the direction of the cover plate 23 until the cutting edge 4 is pressed against the adjustment surface 24 of the cover plate 23.
- the adjustment surface 24 consists of a relatively hard material, such as steel, the very sharp-edged cutting edge 4 already loses its sharpness, since the teeth 5, which are mostly formed on the cutting edge 4, are only loaded selectively. If, on the other hand, the adjustment surface 24 is made of aluminum, it digs over the Time the cutting edge 4 in the adjustment surface 24, so that over time the accuracy of the adjustment of the male connector 1 to the cutter bar 10 is no longer guaranteed, since the tolerances to be observed when adjusting the male connector 1 are very narrow, on the one hand to ensure a reliable and clean cut and on the other hand not to ensure excessive cutting forces.
- Fig. 3 schematically shows the cross section and a section of the side view of an adjusting device 20 according to the invention in an embodiment variant, in which, for example, a male connector 1 according to the invention Fig. 7 is used.
- the exemplary in Fig. 3 The illustrated embodiment of an adjusting device 20 according to the invention has the advantage that existing cutter bars 10 can be used in conjunction with the cutter strips 1 according to the invention.
- Fig. 4 shows the front view of a knife bar 10 according to the invention, with which the exact position of the knife bar 1 which can be clamped in the knife bar 10 can be ensured even without using an additional adjusting device 20.
- Fig. 4 shows the base body 11 of the cutter bar 10 and the cutter bar 1, which in this illustration is not at least partially covered by the terminal block 12 in order to be able to show details of the cutter bar 1 used there and the stops 14 shown as examples.
- the male connector 1 is designed such that at least one stop surface 6 is formed in the area of at least one outer edge 3, preferably in the area of both outer edges 3, which has a defined distance d from the cutting edge 4.
- the cutter bar 10 has an associated stop 14 for each stop surface 6, which stop in FIG Fig. 4 embodiment shown in the base body 11 is attached.
- the shape of the stop can vary accordingly; the stop 14 can be designed as a pin or machined directly from the material of the base body 11.
- the shape of the at least one stop 14 can be designed more or less as desired. For example, they can have flat and / or round surfaces which are brought into contact with the at least one stop surface 6 of the male connector 1.
- the male connector 1 is clamped in the cutter bar 10, the exemplary embodiment of the clamping by means of clamping screws can be recognized by the fact that the male connector 1 has four through holes for this.
- the knife bar 1 in the knife bar 10 comprises a stop 14, which is attached, for example, to the base body 11 and against which the at least one stop surface 6 of the knife bar 1 can be adjusted.
- the male connector 1 can, for example, be pressed against the at least one stop 14 from below with the pressure screws 13.
- the knife bar 1 can be between the base body 11 of the knife bar 10 and that in FIG Fig. 4 shown terminal block 12 by means of in Fig. 4 Clamping screws, not shown, are clamped.
- FIG. 5 shows a knife bar 10 according to the invention, which is almost identical to that in FIG Fig. 4 is shown cutter bar 10, with the in Fig. 5 illustrated embodiment a male connector 1 according to Fig. 11 is used.
- a mechanical contact of the cutting surface 4 with another component for adjusting the knife bar 1 is made in all cases in which at least one stop surface 6 of the knife bar 1 is struck against at least one stop 14 of the knife bar 10 or against at least one stop 25 of the adjusting device 20. completely excluded, so that damage to the at least one cutting edge 4 is reliably avoided.
- Fig. 6 shows for the sake of completeness a male connector 1, as is known from the prior art.
- the knife strip 1 is essentially a sheet metal strip made of high-strength knife or spring steel with a knife strip length L which is delimited by two outer edges 3.
- the thickness of the male connector 1 is generally uniform, only in the area of the cutting edge 4, which is one of the two longitudinal edges 2, is ground on one or both sides in such a way that there is a sharp cutting edge 4 for penetrating the material to be cut results.
- the cutting edge 4 generally has pointed teeth 5, so that the male connector 1 does not have to simultaneously penetrate the material to be cut over the entire length of the cutting edge 4.
- Perforating knives are essentially identical to cutting knives, and only have the distinguishing feature that the cutting edge 4 has interruptions in the sense of cutouts at which the material to be perforated should not be cut.
- knife strip 1 is used exclusively below, regardless of whether these are used for cutting or perforating fabrics.
- Fig. 7 shows a knife strip 1 according to the invention for generating cutting and / or perforation lines transverse to the transport direction of web-shaped or curved substrates, with a knife strip length L, which is delimited by two outer edges 3, at least one longitudinal edge 2 being designed as a cutting edge 4, whereby on the at least one cutting edge 4 are usually formed adjacent teeth 5 and in which at least one stop surface 6 is formed in the area of at least one outer edge 3.
- Knife strip 1 shown has a stop surface 6 in the area of both outer edges 3.
- Each of the stop surfaces 6 has a defined and closely tolerated distance d from the cutting edge 4, so that an exact arrangement of the cutting edge 4 to the cutter bar 10 is ensured when the at least one stop surface 6 on the at least one stop 25 in the adjusting device 20 or the at least one stop 14 of the cutter bar 10.
- Knife strip 1 shown has two stop surfaces 6, which are designed as recessed recesses to the cutting edge 4. This makes it possible, for example, to align the male connector 1 in a manner as in FIG Fig. 3 Setting device 20 shown, furthermore, with such a configuration, the male connector 1 can be pressed from the longitudinal edge 2 arranged opposite the cutting edge 4 with pressure screws 13 against the stop 14, 25.
- the at least one stop surface 6 on the longitudinal edge 2 opposite the cutting edge 4 namely when the at least one stop 14, 25 on the longitudinal edge 2 opposite the cutting edge 4 or in the region of the longitudinal edge 2, for example if it is a recessed recess to the longitudinal edge 2 are formed, is operatively connected.
- the relevant distance d to be carried out changes exactly, which is why this example also in the Fig. 7 is taken into account.
- the distance d in brackets is to be observed for the case in which the stop surfaces 6 in brackets are used, which according to the in Fig. 2 illustrated example are formed as parts of the longitudinal edge 2.
- These stop surfaces 6 shown in brackets can, for example, also be designed as recessed cutouts in the region of the longitudinal edge 2.
- Fig. 8 depicts a male connector 1, which is essentially comparable to that in FIG Fig. 7 Knife strip 1 shown.
- Fig. 8 shows another embodiment of a stop surface 6, since this is formed as part of a circular arc.
- the circular arc-shaped abutment surfaces 6 shown can also be arranged on the longitudinal edge 2 opposite the cutting edge 4. But it is also possible to exclude at least one of the corners in the form of an arc. However, mixed forms are also possible in which the at least one stop surface 6 is at least partially designed as an arc. It is advantageous here that, when using round stops 14, 25, the male connector 1 is in contact with them not only at certain points but also over the surface of the stop surface 6.
- Fig. 9 shows an exemplary embodiment of a male connector 1, in which the at least one stop surface 6 is designed as a surface of an opening 7.
- the surface facing the relevant cutting edge 4 can be designed as a stop surface 6 and / or the surface facing away from the relevant cutting edge 4 can be designed as a stop surface 6.
- the exact distance d to be dimensioned depends on the relevant stop surface 6, which is why the associated stop surfaces 6 and the associated distances d in Fig. 9 are shown with and without brackets, the reference symbols shown in brackets belonging together and the reference symbols shown without brackets belonging together.
- each of the two longitudinal edges 2 can thus be designed as a cutting edge 4. This makes it possible to turn the knife bar 1 when the first cutting edge 4 is worn.
- the at least one opening 7 is preferably symmetrical to form a line of symmetry parallel and / or perpendicular to the cutting edge 4. In this case, the at least one opening 7 no longer necessarily has to be arranged very close to an outer edge 3, however, in order to achieve an exact alignment, it is advantageous to make at least two openings 7 with the greatest possible distance in the extension of the knife bar length L.
- Fig. 11 shows a further exemplary embodiment of a male connector 1, in which each longitudinal edge 2 is designed as a cutting edge 4.
- each longitudinal edge 2 is designed as a cutting edge 4.
- all corners between the two longitudinal edges 2 designed as cutting edges 4 and the outer edges 3 are designed as recessed cutouts for forming a stop surface 6 in each case.
- the dimensions d with or without brackets are relevant as the exact distance d to be observed.
- Such a knife bar 1 has the advantage that when the first cutting edge 4 in use does not have to be disposed of, the knife bar 1 must be disposed of, but that it can be turned and / or rotated in the knife bar 10 so that the first cutting edge 4 is opposite second cutting edge 4 can be used until the male connector 1 must be disposed of.
- Knife strip 1 shown has stop surfaces 6, which are designed as recessed recesses, the stop surfaces 6 can also have any shape, in particular the shape mentioned above, such as circular arc-shaped recesses.
Abstract
Messerleiste (1), Schneidbalken und Einstellvorrichtung (20) zur vereinfachten Einstellung der Messerhöhe.Der Erfindung liegt die Aufgabe zugrunde, eine Lösung zu schaffen, mit welcher über die gesamte Lebensdauer der Einstellvorrichtung (20) oder des Messerbalkens (10) eine exakte Einstellung der Messerhöhe gewährleistet ist oder sogar gänzlich auf die Verwendung einer Einstellvorrichtung (20) verzichtet werden kann.Die erfindungsgemäße Vorrichtung umfasst zum einen eine Messerleiste (1), bei welcher im Bereich mindestens einer Außenkante (3) mindestens eine Anschlagfläche (6) ausgebildet ist, als auch eine Einstellvorrichtung (20), welche mindestens einen Anschlag (14, 25) umfasst, gegen welchen die mindestens eine Anschlagfläche (6) der Messerleiste (1) anstellbar ist sowie einen Messerbalken (10), der mindestens einen Anschlag (14, 25) umfasst, gegen welchen die mindestens eine Anschlagfläche (6) der Messerleiste (1) anstellbar ist.Knife bar (1), cutting bar and adjusting device (20) for the simplified setting of the knife height. The object of the invention is to create a solution with which an exact setting of the setting device (20) or the knife bar (10) over the entire service life of the Knife height is guaranteed or even the use of an adjusting device (20) can be dispensed with entirely. The device according to the invention comprises on the one hand a knife strip (1) in which at least one stop surface (6) is formed in the region of at least one outer edge (3), as also an adjusting device (20), which comprises at least one stop (14, 25), against which the at least one stop surface (6) of the knife bar (1) can be adjusted, and a cutter bar (10), which has at least one stop (14, 25) comprises, against which the at least one stop surface (6) of the male connector (1) can be placed.
Description
Die Erfindung betrifft zum einen eine Messerleiste zum Erzeugen von Schneid- und/oder Perforationslinien quer zur Transportrichtung von bahn- oder bogenförmigen Substraten, mit einer Messerleistenlänge, welche durch zwei Außenkanten begrenzt ist, wobei mindestens eine Längskante als Schneidkante ausgebildet ist, als auch eine Einstellvorrichtung zum Einstellen der exakten Position der in einem Messerbalken klemmbar angeordneten Messerleiste, wobei der Messerbalken zum Positionieren der Messerleiste in die Einstellvorrichtung anbringbar ist sowie einen Messerbalken zum Einstellen der exakten Position der in diesem Messerbalken klemmbar angeordneten Messerleiste.The invention relates on the one hand to a knife bar for generating cutting and / or perforation lines transverse to the transport direction of web-shaped or curved substrates, with a knife bar length which is delimited by two outer edges, at least one longitudinal edge being designed as a cutting edge, and also to an adjusting device for setting the exact position of the knife bar arranged clampably in a knife bar, the knife bar for positioning the knife bar being attachable to the adjusting device and a knife bar for adjusting the exact position of the knife bar arranged clampably in this knife bar.
Insbesondere bei Apparaten wie Querschneideinrichtungen und/oder Falzwerken von Rollendruckmaschinen zum Querschneiden und/oder zum Perforieren quer zur Laufrichtung von insbesondere bahnförmigen Stoffen wie beispielsweise Papier-, Vlies- oder Kunststoffbahnen, kommen sogenannte Schneidmesser- oder Perforiermesserzylinder zum Einsatz, welche sich um eine Rotationsachse drehen, wobei die Rotationsachse senkrecht zur Transportrichtung des an dem Schneid- oder Perforierzylinder vorbeigeführten bahn- oder bogenförmigen Stoffes steht, so dass die Umfangsrichtung des Schneid- oder Perforierzylinders mit der Transportrichtung des daran vorbeigeführten Stoffes übereinstimmt. Da es für die nachfolgend beschriebene erfinderische Idee nicht relevant ist, ob diese für Schneid- oder Perforierzylinder beziehungsweise -messer zum Einsatz kommt, wird nachfolgend nur noch der allgemeingültige Begriff der Schneideinrichtung beziehungsweise des Schneidvorganges verwendet, da das Perforieren ebenfalls ein Schneidvorgang wenngleich mit unterbrochener Schnittkante ist.So-called cutting knife or perforating knife cylinders, which rotate about an axis of rotation, are used in particular in the case of apparatuses such as cross-cutting devices and / or folding units of web-fed printing machines for cross-cutting and / or perforating transversely to the running direction of, in particular, web-shaped materials such as paper, nonwoven or plastic webs , wherein the axis of rotation is perpendicular to the direction of transport of the web or sheet material guided past the cutting or perforating cylinder, so that the circumferential direction of the cutting or perforating cylinder matches the direction of transport of the material passed therethrough. Since it is not relevant for the inventive idea described below whether it is used for cutting or perforating cylinders or knives, only the generally applicable term of the cutting device or the cutting process is used below, since perforating is also a cutting process, albeit with an interrupted cutting edge is.
In einem derartigen Schneidzylinder, welcher auch Schneidmesserzylinder genannt wird, ist an der Mantelfläche mindestens eine Messerleiste im Wesentlichen parallel zur Rotationsachse angeordnet, wobei die Messerleiste mit dem zu schneidenden Stoff zum vollständigen oder partiellen Durchtrennen in Wirkverbindung gebracht wird. Die Messerleiste ist im Wesentlichen eine Blechleiste aus Messerstahl mit einer Messerleistenlänge, welche durch zwei Außenkanten begrenzt ist, wobei mindestens eine Längskante als Schneidkante ausgebildet ist, auf welcher nebeneinanderliegende Zähne ausgebildet sind. Die Schneidkante beziehungsweise die Zähne sind mindestens einseitig eingeschliffen und ist somit extrem scharfkantig.In such a cutting cylinder, which is also called a cutting knife cylinder, at least one knife bar is arranged on the lateral surface substantially parallel to the axis of rotation, the knife bar being brought into operative connection with the material to be cut for complete or partial severing. The knife bar is essentially a sheet metal bar made of knife steel with a knife bar length which is delimited by two outer edges, at least one longitudinal edge being designed as a cutting edge on which adjacent teeth are formed. The cutting edge or teeth are ground at least on one side and is therefore extremely sharp.
Zum Aufbau der entsprechenden Schnittkraft zum Durchdringen des zu schneidenden Stoffes wirkt die Messerleiste mit einer Gegenleiste zusammen, welche zumeist aus einem elastischen Stoff wie beispielsweise geschäumtem oder ungeschäumtem Polyurethan besteht. Die mindestens eine Gegenleiste ist auf einem dem Schneidzylinder auf den zu schneidenden Stoff bezogen gegenüberliegenden Gegenzylinder befestigt.To build up the corresponding cutting force for penetrating the material to be cut, the knife bar interacts with a counter bar, which usually consists of an elastic material such as foamed or non-foamed polyurethane. The at least one counter bar is fastened on a counter cylinder opposite the cutting cylinder in relation to the material to be cut.
Aufgrund der begrenzten Standzeit der Messerleiste muss diese mit einfachen Mitteln auf dem Schneidzylinder getauscht werden können, weshalb die Messerleiste zumeist in einem auf dem Schneidzylinder befestigbaren Messerbalken geklemmt ist. Der Messerbalken besteht im Wesentlichen aus einem Grundkörper und einer darauf klemmbaren Klemmleiste, wobei die Messerleiste zwischen dem Grundkörper und der Klemmleiste fixiert wird. Zum Tausch der Messerleiste muss somit nur der mindestens eine Messerbalken auf dem Schneidzylinder getauscht werden.Due to the limited service life of the male connector, it must be possible to replace it on the cutting cylinder with simple means, which is why the male connector is usually clamped in a cutter bar that can be attached to the cutting cylinder. The knife bar essentially consists of a base body and a clamp strip that can be clamped thereon, the knife strip being fixed between the base body and the clamp strip. To replace the knife bar, only the at least one knife bar on the cutting cylinder has to be replaced.
Zur Sicherstellung einer sauberen Durchtrennung des zu schneidenden Stoffes sowie zur Vermeidung übermäßiger Schnitt- beziehungsweise Gegenkräfte zwischen der Messerleiste und der Gegenleiste ist eine exakte Justierung der Messerleiste zum Schneidzylinder und somit aufgrund der definierten Anlageflächen zwischen Messerbalken und Schneidzylinder eine exakte Justierung der Messerleiste zum Messerbalken zwingend erforderlich.To ensure a clean cut of the material to be cut and to avoid excessive cutting or counter-forces between the male connector and the male connector, an exact adjustment of the male connector to the cutting cylinder and therefore an exact adjustment of the male connector to the cutter bar is absolutely necessary due to the defined contact surfaces between the cutter bar and the cutting cylinder .
Aus dem Stand der Technik sind hierzu Einstellvorrichtungen bekannt, in welche zumeist der Messerbalken mit der vormontierten Messerleiste eingesetzt wird. Zur Einstellung der korrekten Messerhöhe, das heißt des korrekten Überstandes der Schneidkante über den Grundkörper des Messerbalkens oder des richtigen Abstandes der Schneidkante zur Auflagefläche des Messerbalkens im Messerzylinder wird die Schneidkante gegen eine Fläche mit definierter Lage zum Messerbalken gedrückt und im Anschluss daran wird die Messerleiste im Messerbalken geklemmt.For this purpose, adjustment devices are known from the prior art, in which the cutter bar with the preassembled cutter bar is mostly inserted. To set the correct knife height, i.e. the correct projection of the cutting edge over the main body of the knife bar or the correct distance from the cutting edge to the support surface of the knife bar in the knife cylinder, the cutting edge is pressed against a surface with a defined position to the knife bar and then the knife bar is in the Knife beam clamped.
Eine derartige Einstellung weist diverse Nachteile auf. Besteht die Justagefläche, mit welcher die Schneidkante zur Einstellung in Kontakt gebracht wird, aus einem relativ harten Werkstoff wie beispielsweise Stahl, so wird die zumeist sehr scharfkantige Schneidkante beziehungsweise werden die sehr spitzen Zähne der Schneidkante bereits beschädigt, bevor diese überhaupt in den Messerzylinder eingesetzt werden. Besteht die Justagefläche aus einem sehr weichen Werkstoff wie beispielsweise einem Elastomer, so ist eine exakte Einstellung der Schneidmesserhöhe aufgrund der geringen Härte der Justagefläche und dem Eindringen der Schneidkante darin nicht gewährleistet. Besteht die Justagefläche aus einem Werkstoff mittlerer Härte wie beispielsweise einem formstabilen Kunststoff oder Aluminium, so verschleißt der mit der Schneidkante in Berührung kommende Bereich der Justagefläche aufgrund der zumeist sehr scharfkantig geschliffenen Zähne der Schneidkante über die Zeit, so dass die Genauigkeit der Messerhöhe im Laufe der Zeit abnimmt.Such an adjustment has various disadvantages. If the adjustment surface with which the cutting edge is brought into contact for adjustment consists of a relatively hard material such as steel, the mostly very sharp-edged cutting edge or the very pointed teeth of the cutting edge are damaged before they are even inserted into the knife cylinder . If the adjustment surface consists of a very soft material such as an elastomer, an exact adjustment of the cutting knife height cannot be guaranteed due to the low hardness of the adjustment surface and the penetration of the cutting edge therein. If the adjustment surface consists of a material of medium hardness, such as a dimensionally stable plastic or aluminum, the area of the adjustment surface that comes into contact with the cutting edge wears out over time due to the teeth of the cutting edge, which are usually very sharp-edged, so that the accuracy of the knife height over the course of time Time is decreasing.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Lösung zu schaffen, mit welcher über die gesamte Lebensdauer der Einstellvorrichtung oder des Messerbalkens eine exakte Einstellung der Messerhöhe gewährleistet ist oder sogar gänzlich auf die Verwendung einer Einstellvorrichtung verzichtet werden kann.The invention is therefore based on the object of providing a solution with which an exact adjustment of the knife height is ensured over the entire service life of the adjusting device or the knife bar, or even the use of an adjusting device can be dispensed with entirely.
Die Aufgabe wird durch Vorrichtungen gemäß der Ansprüche 1, 9 und 10 gelöst. Die erfindungsgemäße Vorrichtung umfasst zum einen eine Messerleiste, bei welcher im Bereich mindestens einer Außenkante mindestens eine Anschlagfläche ausgebildet ist, als auch eine Einstellvorrichtung, welche mindestens einen Anschlag umfasst, gegen welchen die mindestens eine Anschlagfläche der Messerleiste anstellbar ist sowie einen Messerbalken, der mindestens einen Anschlag umfasst, gegen welchen die mindestens eine Anschlagfläche der Messerleiste anstellbar ist.The object is achieved by devices according to
Eine derartige Ausführung der Schneidleiste im Zusammenspiel mit einer entsprechenden Einstellvorrichtung oder einem entsprechenden Messerbalken weist den Vorteil auf, dass zur Justage der Messerleiste diese nicht mehr in Kontakt mit einem anderen Gegenstand kommt, so dass zum einen die Gefahr des Verlustes der Schärfe der Schneidkante beziehungsweise der dort ausgeformten Zähne nicht mehr besteht. Zum anderen ist bei Verwendung eines entsprechenden erfindungsgemäßen Messerbalkens auch keine zusätzliche Einstellvorrichtung mehr erforderlich, was die Durchführung eines Tausches der Messerleiste sowie deren Einstellung wesentlich erleichtert und Fehlerquellen ausschließt.Such a design of the cutting bar in interaction with a corresponding setting device or a corresponding cutter bar has the advantage that for adjusting the cutter bar it no longer comes into contact with another object, so that on the one hand the risk of losing the sharpness of the cutting edge or the teeth there no longer exist. On the other hand, when using a corresponding cutter bar according to the invention, no additional adjustment device is required, which considerably simplifies the replacement and adjustment of the cutter bar and eliminates sources of error.
In einer vorteilhaften Ausgestaltung ist an der Messerleiste im Bereich beider Außenkanten beziehungsweise in einem entsprechenden Abstand hierzu jeweils eine Anschlagfläche ausgebildet. Die im Messerbalken zu justierende Messerleiste kann somit mit beiden Anschlagflächen an zwei zugehörigen Anschlägen entweder der Einstellvorrichtung oder des Messerbalkens angestellt werden, so dass die exakte Positionierung der Messerleiste zum Messerbalken gewährleistet ist. So können die Anschlagflächen derart ausgebildet sein, dass zum einen der Überstand der Messerleiste über den Messerbalken über die gesamte Länge konstant ist, es ist aber auch möglich, die Mehrzahl der Anschlagflächen so auszugestalten, dass eine exakte Positionierung der Messerleiste ihrer Länge nach zum Messerbalken sichergestellt ist.In an advantageous embodiment, an abutment surface is formed on the male connector in the area of both outer edges or at a corresponding distance therefrom. The knife bar to be adjusted in the knife bar can thus be set with two stop faces on two associated stops either of the adjusting device or the knife bar, so that the exact positioning of the knife bar relative to the knife bar is ensured. Thus, the stop surfaces can be designed such that, on the one hand, the protrusion of the male connector over the cutter bar is constant over the entire length, but it is also possible to design the majority of the stop surfaces in such a way that an exact positioning of the male connector along its length relative to the cutter bar is ensured is.
In einer weiteren vorteilhaften Ausgestaltung weist die mindestens eine Anschlagfläche eine definierte Distanz zu der Schneidkante auf. Durch die Distanz zwischen der Schneidkante und der mindestens einen Anschlagfläche sowie insbesondere durch eine enge Tolerierung dieser Distanz ist somit eine sehr exakte und immer gleichbleibend exakte Positionierung der Messerleiste zum Messerbalken und somit eine gleichbleibend hohe Schnittqualität zu erzielen.In a further advantageous embodiment, the at least one stop surface is at a defined distance from the cutting edge. Due to the distance between the cutting edge and the at least one stop surface and, in particular, due to the close tolerance of this distance, a very exact and always consistently exact positioning of the male connector to the cutter bar and thus to achieve a consistently high cutting quality.
In einer weiteren vorteilhaften Ausgestaltung ist die mindestens eine Anschlagfläche als vertiefte Aussparung zur Schneidkante ausgebildet. Somit ist in einer derartigen Ausführung die Schneidkante die erhabenste Stelle der Messerleiste und es gibt beim Einbau der Messerleiste in den Messerbalken beziehungsweise beim Einbau des Messerbalkens in den Schneidzylinder keine zusätzliche Störkontur, welche insbesondere beim Zusammenwirken des Schneidzylinders mit dem Gegenzylinder berücksichtigt werden muss.In a further advantageous embodiment, the at least one stop surface is designed as a recessed cutout to the cutting edge. Thus, in such an embodiment, the cutting edge is the most elevated point of the cutter bar and there is no additional interference contour when installing the cutter bar in the cutter bar or when installing the cutter bar in the cutting cylinder, which must be taken into account in particular when the cutting cylinder interacts with the counter cylinder.
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Verschiedene Ausführungsbeispiele der Erfindung werden, ohne hierauf beschränkt zu sein, an Hand der Zeichnungen näher erläutert. Dabei zeigt:
- Fig. 1
- einen schematisch dargestellten Messerbalken, wie dieser aus dem Stand der Technik bekannt ist
- Fig. 2
- einen schematisch dargestellten Messerbalken mit einer schematisch dargestellten Einstellvorrichtung, wie diese aus dem Stand der Technik bekannt ist
- Fig. 3
- eine erfindungsgemäße Einstellvorrichtung mit einem Messerbalken, in welchen eine erfindungsgemäße Messerleiste eingesetzt ist
- Fig. 4
- einen erfindungsgemäßen Messerbalken, in welchen eine erfindungsgemäße Messerleiste eingesetzt ist
- Fig. 5
- einen erfindungsgemäßen Messerbalken, in welchen eine besonders vorteilhafte erfindungsgemäße Messerleiste eingesetzt ist
- Fig. 6
- eine Messerleiste, wie diese aus dem Stand der Technik bekannt ist
- Fig. 7
- eine Ausgestaltung einer erfindungsgemäßen Messerleiste
- Fig. 8
- eine Ausgestaltung einer erfindungsgemäßen Messerleiste
- Fig. 9
- eine Ausgestaltung einer erfindungsgemäßen Messerleiste
- Fig. 10
- eine Ausgestaltung einer erfindungsgemäßen Messerleiste
- Fig. 11
- eine besonders vorteilhafte Ausgestaltung einer erfindungsgemäßen Messerleiste
- Fig. 1
- a schematically shown cutter bar, as is known from the prior art
- Fig. 2
- a schematically shown cutter bar with a schematically shown setting device, as is known from the prior art
- Fig. 3
- an adjusting device according to the invention with a knife bar, in which a knife bar according to the invention is inserted
- Fig. 4
- a knife bar according to the invention, in which a knife bar according to the invention is inserted
- Fig. 5
- a knife bar according to the invention, in which a particularly advantageous knife strip according to the invention is used
- Fig. 6
- a male connector, as is known from the prior art
- Fig. 7
- an embodiment of a male connector according to the invention
- Fig. 8
- an embodiment of a male connector according to the invention
- Fig. 9
- an embodiment of a male connector according to the invention
- Fig. 10
- an embodiment of a male connector according to the invention
- Fig. 11
- a particularly advantageous embodiment of a male connector according to the invention
Der beispielhaft dargestellte Messerbalken 10 besteht aus einem L-förmigen Grundkörper 11 und einer Klemmleiste 12, so dass zwischen dem Grundkörper 11 und der Klemmleiste 12 eine Messerleiste 1 geklemmt werden kann. Die Klemmung erfolgt in der Regel über eine Mehrzahl von in Erstreckung der Messerbalkenlänge angebrachten Schrauben, welche beispielsweise in den Grundkörper 11 eingeschraubt werden und die entsprechenden Durchgangsbohrungen aufweisende Klemmleiste 12 gegen die Messerleiste 1 drücken, so dass die Messerleiste 1 zwischen dem Grundkörper 11 geklemmt wird, um die Schnittkräfte aufnehmen zu können. Diese Schraub- beziehungsweise Klemmverbindung ist in
Die Messerleiste 1, welche in einer Ausführung, wie diese aus dem Stand der Technik bekannt ist, in
Zur einfacheren Justage des Überstandes der Messerleiste 1 über den Messerbalken 10 umfasst der Grundkörper 11 mindestens eine Andrückschraube 13, welche gegen die Messerleiste 1 drückt, was in
Die Justage der Messerleiste 1 im Messerträger, wie diese aus dem Stand der Technik bekannt ist, ist in
Besteht die Justagefläche 24 aus einem relativ harten Werkstoff wie beispielsweise Stahl, so verliert die sehr scharfkantige Schneidkante 4 bereits an Schärfe, da die zumeist auf der Schneidkante 4 ausgebildeten Zähne 5 nur punktuell belastet werden. Besteht die Justagefläche 24 hingegen aus Aluminium, so gräbt sich über die Zeit die Schneidkante 4 in die Justagefläche 24, so dass über die Zeit die Genauigkeit der Justage der Messerleiste 1 zum Messerbalken 10 nicht mehr gewährleistet ist, da die einzuhaltenden Toleranzen bei der Justage der Messerleiste 1 sehr eng sind, um einerseits einen zuverlässigen und sauberen Schnitt und andererseits keine überhöhten Schnittkräfte sicherzustellen.If the
Um ein Eindrücken der Schneidkante 4 in die Justagefläche 24 zu vermeiden, kann diese deshalb auch nicht aus einem sehr weichen Werkstoff wie beispielsweise einem Elastomer ausgeführt werden.In order to prevent the
Aufgrund des bei Verwendung einer derartigen Einstellvorrichtung 20 nicht vermeidbaren Kontaktes zwischen der Schneidkante 4 und der Justagefläche 24 besteht die Gefahr der Beschädigung der Schneidkante 4 bereits vor Einbau der Messerleiste 1 beziehungsweise des Messerbalkens 10 in den Schneidzylinder. Eine Begrenzung der Justagefläche 24 auf mindestens eine kleinere Fläche löst dieses Problem nicht, sondern schränkt dieses nur geometrisch ein, gegebenenfalls aufgrund der höheren Pressung in den kleineren Bereichen mit dort stärkerer Beschädigung der Schneidkante 4.Due to the unavoidable contact between the
Die Messerleiste 1 ist derart ausgestaltet, dass im Bereich mindestens einer Außenkante 3, vorzugsweise im Bereich beider Außenkanten 3 mindestens eine Anschlagfläche 6 ausgebildet ist, welche eine definierte Distanz d zu der Schneidkante 4 aufweist.The
Die Einstellvorrichtung 20 weist zu einer jeden Anschlagfläche 6 einen zugehörigen Anschlag 25 auf, welcher in der in
Die Messerleiste 1 ist in dem Messerbalken 10 klemmbar angebracht, die beispielhafte Ausführung einer Schraubverbindung ist mittels Strichpunktlinien dargestellt. Zum Positionieren der Messerleiste 1 in dem Messerbalken 10 wird dieser in die Einstellvorrichtung 20 verbracht, welche mindestens einen Anschlag 25 umfasst, gegen welchen die mindestens eine Anschlagfläche 6 der Messerleiste 1 anstellbar ist. Die Messerleiste 1 kann beispielsweise mit den Andrückschrauben 13 von unten gegen den mindestens einen Anschlag 25 gedrückt werden. Ist die korrekte Position der Messerleiste 1 erreicht, das heißt, dass die mindestens eine Anschlagfläche 6 gegen den Anschlag 25 gedrückt ist, kann die Messerleiste 1 zwischen dem Grundkörper 11 des Messerbalkens 10 und der Klemmleiste 12 mittels in
Ein mechanischer Kontakt der Schneidfläche mit einem anderen Bauteil zur Justage der Messerleiste 1 wird somit gänzlich ausgeschlossen.A mechanical contact of the cutting surface with another component for adjusting the
Die beispielhaft in
Die Messerleiste 1 ist derart ausgestaltet, dass im Bereich mindestens einer Außenkante 3, vorzugsweise im Bereich beider Außenkanten 3 mindestens eine Anschlagfläche 6 ausgebildet ist, welche eine definierte Distanz d zu der Schneidkante 4 aufweist.The
Der Messerbalken 10 weist zu einer jeden Anschlagfläche 6 einen zugehörigen Anschlag 14 auf, welcher in der in
Wenngleich in
Die Messerleiste 1 ist in dem Messerbalken 10 klemmbar angebracht, die beispielhafte Ausführung der Klemmung mittels Klemmschrauben ist daran zu erkennen, als dass die Messerleiste 1 vier Durchgangsbohrungen hierfür aufweist. Zum Positionieren der Messerleiste 1 in dem Messerbalken 10 umfasst dieser einen Anschlag 14, welcher beispielsweise auf dem Grundkörper 11 angebracht ist und gegen welchen die mindestens eine Anschlagfläche 6 der Messerleiste 1 anstellbar ist. Die Messerleiste 1 kann beispielsweise mit den Andrückschrauben 13 von unten gegen den mindestens einen Anschlag 14 gedrückt werden. Ist die korrekte Position der Messerleiste 1 erreicht, das heißt, dass die mindestens eine Anschlagfläche 6 gegen den Anschlag 14 gedrückt ist, kann die Messerleiste 1 zwischen dem Grundkörper 11 des Messerbalkens 10 und der nicht in
Wenngleich nicht in
Die Verwendung von zu den beiden Längskanten 2 abgesetzten Anschlagflächen 6 hat jedoch einen zusätzlichen Vorteil, wie in
Durch Verwendung einer Messerleiste 1, welche an beiden Längskanten 2 entsprechend abgesetzte Anschlagflächen 6 an mindestens einer Außenkante 3 aufweist, kann die Messerleiste 1 symmetrisch zu ihrer Längs-Mittelachse ausgeführt werden, was ermöglicht, dass beide Längskanten 2 als Schneidkanten 4 ausgeführt werden. Ist nun eine Schneidkante 4 durch den Schneidvorgang entsprechend abgenützt, so muss nicht bereits die gesamte Messerleiste 1 ausgetauscht und somit entsorgt werden, sondern durch die Tatsache, dass beide Längskanten 2 als Schneidkanten 4 ausgeführt sind, kann die Messerleiste 1 gewendet und ein zweites Mal verwendet werden, so dass der erforderliche Materialeinsatz und somit auch der Kostenanfall verringert wird.By using a
Hierbei ist es irrelevant, ob der mindestens eine Anschlag 14 auf der Seite der zur Verwendung vorgesehenen Schneidkante 4 angeordnet ist, wie dies in
Die in
Wenngleich zeichnerisch nicht dargestellt, so ist es auch möglich, eine Messerleiste 1 mit zwei Schneidkanten 4, wie beispielhaft in
Wenngleich in
Ein mechanischer Kontakt der Schneidfläche 4 mit einem anderen Bauteil zur Justage der Messerleiste 1 wird in all den Fällen, bei welchen mindestens eine Anschlagfläche 6 der Messerleiste 1 gegen mindestens einen Anschlag 14 des Messerbalkens 10 oder gegen mindestens einen Anschlag 25 der Einstellvorrichtung 20 angeschlagen wird, gänzlich ausgeschlossen, so dass Beschädigungen der mindestens einen Schneidkante 4 zuverlässig vermieden werden.A mechanical contact of the cutting
Perforiermesser sind im Wesentlichen identisch zu Schneidmessern ausgeführt, und weisen nur das Unterscheidungsmerkmal auf, dass die Schneidkante 4 Unterbrechungen im Sinne von Aussparungen aufweist, an denen der zu perforierende Stoff nicht durchtrennt werden soll. Insofern wird nachfolgend ausschließlich der Begriff Messerleiste 1 verwendet, unabhängig davon, ob diese zum Schneiden oder zum Perforieren von Stoffen verwendet werden.Perforating knives are essentially identical to cutting knives, and only have the distinguishing feature that the
Die in
Zwar können die definierten Anschlagflächen 6 grundsätzlich an jeder Längskante 2 ausgebildet sein, diese sind jedoch vorzugsweise im Bereich mindestens einer Außenkante 3, besonders bevorzugt im Bereich beider Außenkanten 3 angebracht, um zum einen ein möglichst großes Abstandsmaß in Erstreckung der Messerleistenlänge L aufzuweisen, da dies eine exakte Positionierung durch Vermeidung eines Kippeffektes sicherstellt. Zum anderen kann so die mindestens eine Schneidkante 4 ununterbrochen ausgeführt werden. Lediglich bei Perforiermessern wäre es vorstellbar, entsprechende Anschlagflächen 6 innerhalb der mindestens einen Schneidkante 4 auszuführen.Although the defined stop surfaces 6 can in principle be formed on each
Die in
Es ist jedoch auch möglich, wie unter den
Wenngleich in
Durch die Anordnung der mindestens einen Anschlagfläche 6 innerhalb der Messerleiste 1 kann somit eine jede der beiden Längskanten 2 als Schneidkante 4 ausgebildet sein. Dies ermöglicht das Wenden der Messerleiste 1 bei entsprechendem Verschleiß der ersten Schneidkante 4. Um eine Montage der Messerleiste 1 in gewendeter und/oder gedrehter Form in dem Messerbalken 10 zur Nutzung auch der zweiten Schneidkante 4 zu ermöglichen, ist der mindestens eine Durchbruch 7 vorzugsweise symmetrisch zu einer zur Schneidkante 4 parallelen und/oder senkrechten Symmetrielinie auszugestalten. Der mindestens eine Durchbruch 7 muss in diesem Fall nicht mehr zwingend sehr nahe an einer Außenkante 3 angeordnet sein, zur Erzielung einer exakten Ausrichtung ist es jedoch vorteilhaft, mindestens zwei Durchbrüche 7 mit möglichst großem Abstand in Erstreckung der Messerleistenlänge L auszuführen.By arranging the at least one
Wenngleich in
Wenngleich die in
Ferner ist es bei allen erfindungsgemäßen Messerleisten 1 möglich, unterschiedliche Formen von Anschlagflächen 6 zu kombinieren. Aufgrund der Vielzahl der Möglichkeiten wird deshalb auf eine abschließende Aufzählung verzichtet.Furthermore, it is possible with all
- 11
- MesserleisteMale connector
- 22nd
- LängskanteLong edge
- 33rd
- AußenkanteOuter edge
- 44th
- SchneidkanteCutting edge
- 55
- Zähneteeth
- 66
- AnschlagflächeAbutment surface
- 77
- Durchbruchbreakthrough
- 1010th
- MesserbalkenKnife bar
- 1111
- GrundkörperBasic body
- 1212th
- KlemmleisteTerminal block
- 1313
- AndrückschraubePressure screw
- 1414
- Anschlagattack
- 2020
- EinstellvorrichtungAdjusting device
- 2121
- GrundplatteBase plate
- 2222
- SeitenplatteSide plate
- 2323
- DeckplatteCover plate
- 2424th
- JustageflächeAdjustment surface
- 2525th
- Anschlagattack
- dd
- Distanzdistance
- LL
- MesserleistenlängeKnife bar length
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019102477.3A DE102019102477A1 (en) | 2019-01-31 | 2019-01-31 | Knife ledge, cutting bar and adjustment device for easy adjustment of the knife height |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3689562A1 true EP3689562A1 (en) | 2020-08-05 |
Family
ID=69191851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20151137.5A Pending EP3689562A1 (en) | 2019-01-31 | 2020-01-10 | Cutter bar, cutting bar and adjustment device for simplified adjustment of the measurement height |
Country Status (4)
Country | Link |
---|---|
US (1) | US20200246997A1 (en) |
EP (1) | EP3689562A1 (en) |
CN (1) | CN111496888A (en) |
DE (1) | DE102019102477A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US968121A (en) * | 1908-10-20 | 1910-08-23 | Cortland Carlton | Perforating-shear. |
US3340757A (en) * | 1957-08-21 | 1967-09-12 | Hauni Werke Koerber & Co Kg | Cutter for adhesive-coated tape and the like |
GB2090783A (en) * | 1981-01-09 | 1982-07-21 | Grapha Holding Ag | A perforating cutter |
US4700481A (en) * | 1986-05-23 | 1987-10-20 | The Singer Company | Cutter head assembly for power planer |
US5735185A (en) * | 1992-12-28 | 1998-04-07 | Hitachi Metals, Ltd. | Rotary-type sheet cutter |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2829689A (en) * | 1955-11-16 | 1958-04-08 | Grasslander Co Ltd | Pressure cutting unit having longitudinally inclined cutting blades |
GB931814A (en) * | 1960-11-04 | 1963-07-17 | Tom Rowlands | Improvements in or relating to cutting mechanism |
US4240313A (en) * | 1978-12-08 | 1980-12-23 | Philip Morris Incorporated | Rotary cutting knife mounting |
FR2452886A1 (en) * | 1979-04-05 | 1980-10-31 | Molins Ltd | Cigarette filter tip fitting machine cutter head - has drum with knives, spring-loaded outwards against adjustable holders |
EP0412383A3 (en) * | 1989-08-11 | 1991-11-13 | Jos. Hunkeler Ag Fabrik Fuer Graphische Maschinen | Apparatus for cutting waste out of a running web |
JP3324111B2 (en) * | 1997-09-04 | 2002-09-17 | 日本精機株式会社 | Perforation forming device for separation |
US6009781A (en) * | 1998-02-27 | 2000-01-04 | The Procter & Gamble Company | Differential-spacing perforating roll |
US6449864B1 (en) * | 2000-07-25 | 2002-09-17 | Thomas H. Newman | Method and apparatus for rotary cutter blade adjustment |
TWM255780U (en) * | 2004-03-05 | 2005-01-21 | Shinmax Industry Co Ltd | Tool shaft apparatus of planing machine |
US7100648B2 (en) * | 2004-11-24 | 2006-09-05 | Bor-Yann Chuang | Plane-blade adjusting device for a planing machine |
DE202006015561U1 (en) * | 2006-10-09 | 2006-12-21 | Ungerechts-Konstruktionen E.K. | Cutting roller for cutting and/or perforating e.g. paper, has plate spring provided for spring-elastic suspension of strip in groove to ensure spring travel of strip corresponding to adjusted cutting oversize of knife or perforated blade |
JP2010179387A (en) * | 2009-02-04 | 2010-08-19 | Olympus Corp | Cutting device and image recording apparatus having the same |
US7832435B1 (en) * | 2009-05-06 | 2010-11-16 | Chin-Yuan Liu | Cutter head of a planar machine |
EP2386388B1 (en) * | 2010-05-14 | 2012-07-11 | Hunkeler AG | Device for transversely perforating or cutting web sheets of material |
CN203768712U (en) * | 2013-11-08 | 2014-08-13 | 株式会社瑞光 | Fabric cutting device |
ITUB20152389A1 (en) * | 2015-07-22 | 2017-01-22 | Cps Company S R L | Apparatus with quick-change blades, for cutting or for transversely drilling, for the whole width and in a progressive way, of mobile tapes, of paper, plastic or other materials. |
-
2019
- 2019-01-31 DE DE102019102477.3A patent/DE102019102477A1/en active Pending
-
2020
- 2020-01-10 EP EP20151137.5A patent/EP3689562A1/en active Pending
- 2020-01-30 US US16/777,740 patent/US20200246997A1/en not_active Abandoned
- 2020-02-03 CN CN202010078804.9A patent/CN111496888A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US968121A (en) * | 1908-10-20 | 1910-08-23 | Cortland Carlton | Perforating-shear. |
US3340757A (en) * | 1957-08-21 | 1967-09-12 | Hauni Werke Koerber & Co Kg | Cutter for adhesive-coated tape and the like |
GB2090783A (en) * | 1981-01-09 | 1982-07-21 | Grapha Holding Ag | A perforating cutter |
US4700481A (en) * | 1986-05-23 | 1987-10-20 | The Singer Company | Cutter head assembly for power planer |
US5735185A (en) * | 1992-12-28 | 1998-04-07 | Hitachi Metals, Ltd. | Rotary-type sheet cutter |
Also Published As
Publication number | Publication date |
---|---|
DE102019102477A1 (en) | 2020-08-06 |
CN111496888A (en) | 2020-08-07 |
US20200246997A1 (en) | 2020-08-06 |
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