EP2921256B1 - Schneidemaschine mit Schleifeinheit - Google Patents

Schneidemaschine mit Schleifeinheit Download PDF

Info

Publication number
EP2921256B1
EP2921256B1 EP14425034.7A EP14425034A EP2921256B1 EP 2921256 B1 EP2921256 B1 EP 2921256B1 EP 14425034 A EP14425034 A EP 14425034A EP 2921256 B1 EP2921256 B1 EP 2921256B1
Authority
EP
European Patent Office
Prior art keywords
grinding
cutting edge
plane
frame
bevels
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.)
Active
Application number
EP14425034.7A
Other languages
English (en)
French (fr)
Other versions
EP2921256A1 (de
Inventor
Giovanni Bertoli Barsotti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mtorres Tissue Srl
Original Assignee
Mtorres Tissue Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mtorres Tissue Srl filed Critical Mtorres Tissue Srl
Priority to ES14425034T priority Critical patent/ES2715374T3/es
Priority to PL14425034T priority patent/PL2921256T3/pl
Priority to EP14425034.7A priority patent/EP2921256B1/de
Publication of EP2921256A1 publication Critical patent/EP2921256A1/de
Application granted granted Critical
Publication of EP2921256B1 publication Critical patent/EP2921256B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/46—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of disc blades

Definitions

  • the present disclosure generally relates to a grinding unit for sharpening or grinding a rotating knife such as a rotating circular knife.
  • the present disclosure also relates to a cutting machine having such a grinding unit for grinding a circular knife of the cutting machine.
  • the cutting machine is used to cut web material such as tissue wound on tubular winding cores (which is called a "log") or other "logs" of material such as coreless rolls of tissue.
  • the grinding unit of the cutting machine as e.g. known from document WO 2004/039544 , is capable of grinding the circular knife during the cutting process.
  • a log such as a wound tissue log is cut into rolls of smaller size by a rotating circular knife of a cutting machine.
  • the knife rotates around a shaft, and moves toward the log normal to the axis of the log to cut the log.
  • the knife is substantially biconical in shape and has an axis and a cutting edge formed at an intersection of two bevel surfaces located at two opposite sides of the knife.
  • the knife has a thickness greater in proximity to the axis thereof and gradually decreasing from the axis toward the cutting edge.
  • each side of the knife forms two bevels with different angles.
  • the knife must be ground frequently to restore the cutting edge.
  • two grinding units are provided with different angles corresponding to the two bevels with different angles. Each grinding unit is to grind a corresponding bevel of each side of the knife.
  • the invention provides a grinding unit for grinding a circular knife according to claim 1.
  • each grinding head comprises a support and a grinding wheel disposed on the support.
  • the support can be pivotally connected to the frame, and each first executive mechanism can co-act with the support to rotate the support and the grinding wheel supported thereon for changing the angle between the grinding wheel and the plane of the cutting edge.
  • the grinding unit can further comprise two second executive mechanisms, e.g. two actuators, each second executive mechanism connecting a corresponding grinding head to drive the corresponding grinding head for adjusting the distance between the corresponding grinding head and the cutting edge.
  • each second executive mechanism connects the grinding wheel of the corresponding grinding head for moving the grinding wheel relative to the support to change the distance between the grinding wheel and the cutting edge.
  • each side of the cutting edge has two bevels, wherein the angles between the bevels and the plane of the cutting edge are different from each other, and each first executive mechanism is applied to rotate the grinding wheel to an angle suitable for grinding either of the two bevels.
  • Each first executive mechanism can be applied to rotate the grinding wheel, i.e. to pivot the rotation axis thereof, to match any of the bevels of each side of the cutting edge.
  • the frame is a rigid member and defines a plane which is generally perpendicular to the plane of the cutting edge, each grinding head is pivotally connected to the frame via a pivot, and the pivot extends perpendicularly to the plane of the frame.
  • the frame is capable of moving along a direction parallel to the plane of the frame and forward or backward with respect to the rotation axis of the circular knife.
  • a cutting machine for cutting a log comprising:
  • FIG. 1 a circular knife 10 accommodated in a cutting machine in accordance with an exemplary embodiment of the present disclosure is partially shown.
  • a grinding unit provided by the present disclosure is applied to grind such a circular knife 10.
  • the circular knife 10 comprises a main body 12 and a blade portion 14 extending from a periphery of the main body 12.
  • the main body 12 has a disk shape.
  • the main body 12 has two end surfaces 121, 122 opposite to each other.
  • the end surfaces 121, 122 may generally be parallel to each other and orthogonal to a rotation axis OO' of the circular knife 10.
  • the rotation axis OO' extends through a geometric center of the main body 12.
  • the blade portion 14 has two side surfaces 141, 144 opposite to each other.
  • the side surface 141 extends away from a periphery of the end surface 121, and the side surface 144 extends away from a periphery of the end surface 122 and intersects with the side surface 141 to form a continuous cutting edge 140.
  • the cutting edge 140 defines a plane PP' perpendicular to the rotation axis OO' of the circular knife 10 and each side of the cutting edge 140 has two bevels. That is, each side surface 141,144 has two bevels.
  • the side surface 141 comprises a first bevel 142 and a second bevel 143.
  • the first bevel 142 interconnects the end surface 121 and the second bevel 143.
  • the second bevel 143 is positioned between the first bevel 142 and the cutting edge 140.
  • the first bevel 142 and the second bevel 143 are generally conical, and both have an axis coincident with the rotation axis OO'.
  • the first bevel 142 and the second bevel 143 have different angles relative to the rotation axis OO'.
  • the first bevel 142 and the second bevel 143 are of different angles, which means that the angle between the first bevel 142 and the plane PP' of the cutting edge 140 is different from that between the second bevel 143 and the plane PP' of the cutting edge 140.
  • the angle between the first bevel 142 and the plane PP' of the cutting edge 140 is designated as ⁇
  • the angle between the second bevel 143 and the plane PP' of the cutting edge 140 is designated as ⁇ .
  • ⁇ is about 5 degrees
  • ⁇ is about 15 degrees.
  • ⁇ and ⁇ are not limited to that numeric value.
  • ⁇ is smaller than ⁇ .
  • ⁇ may range from 1 to 40 degrees, from 5 to 40 degrees, from 10 to 40 degrees, from 10 to 25 degrees, and so forth.
  • ⁇ may range from 5 to 60 degrees, such as from 5 to 50 degrees, from 10 to 45 degrees, from 15 to 30 degrees, and so forth.
  • the side surface 144 comprises a first bevel 145 and a second bevel 146.
  • the first bevel 145 interconnects the end surface 122 and the second bevel 146.
  • the second bevel 146 is positioned between the first bevel 145 and the cutting edge 140.
  • the circular knife 10 is symmetric relative to the plane PP'.
  • the distance between the end surface 121 and the plane PP' is equal to that between the end surface 122 and the plane PP'.
  • the angle between the first bevel 145 and the plane PP' is ⁇ ', and equal to that between the first bevel 142 and the plane PP'.
  • the angle between the second bevel 146 and the plane PP' is ⁇ ', and equal to that between the second bevel 143 and the plane PP'. It is noted that in alternative embodiments, the circular knife 10 needs not to be strictly symmetric relative to the plane PP'. That is to say, the angle ⁇ ' and ⁇ ' can be designed not equal to the angle ⁇ and ⁇ respectively. Both ⁇ ' and ⁇ ' may have values similar to those ranges previously listed.
  • the grinding unit comprises a frame 20 and two grinding heads 30a, 30b disposed on the frame 20. Each grinding head 30a or 30b is used to grind a corresponding side of the cutting edge 140.
  • the grinding unit is capable of grinding the circular knife 10 after being removed from the cutting machine.
  • the grinding unit also can be a part of the cutting machine, and accommodated with the circular knife 10 for grinding the circular knife 10 of the cutting machine when the circular knife 10 is in and/or out of a cutting process.
  • the cutting machine is applied to cut a log such as a tissue log orthogonal to the axis of the log into rolls of smaller sizes.
  • the frame 20 can be an extension of a frame (not shown) for holding the rotation axis OO' of the circular knife 10.
  • the frame 20 is configured as a rigid member such as a board, and the plane of the frame 20 is perpendicular to the plane PP' of the cutting edge 140.
  • Each of the grinding heads 30a and 30b is positioned at a corresponding lateral side of the frame 20.
  • the grinding head 30a is completely visible in FIG. 2 , and only a part of the grinding head 30b is shown from a notch 21 defined in the frame 20. More details of the grinding head 30b can be seen in FIG. 4 .
  • the notch 21 is provided for an extension of the cutting edge 140 to be positioned between the two grinding heads 30a, 30b and facilitating the grinding of the side surfaces 141, 144 at two sides of the cutting edge 140.
  • the two grinding heads 30a, 30b have an identical structure and are of the same operation principles in the present embodiment, though differences between the two grinding heads 30a, 30b are possible within the scope of the present disclosure.
  • the grinding head 30a is set forth as an example for a detailed description as follows.
  • the grinding head 30a comprises a support 31 and a grinding wheel 32 disposed on the support 31.
  • the grinding wheel 32 is applied to contact and grind the side surface 141 or 144 of the circular knife 10.
  • the support 31 is pivotally connected to the frame 20, and is capable of rotating on the frame 20, which makes the grinding wheel 32 capable of rotating and changing an angle relative to the side surface 141 or 144.
  • the angle between the grinding head 30a or 30b and the plane PP' of the cutting edge 140 of the circular knife 10 can be adjusted. That is, the angle between the grinding wheel 32 of the grinding head 30a or 30b and the side surfaces 141, 144 of the circular knife 10 can be adjusted.
  • the first bevel 142 and the second bevel 143 of the side surface 141 with different angles can be ground by a single grinding head 30a or 30b, and there is no need for providing two grinding heads with different angles to grind the first and second bevels 142, 143 respectively.
  • FIG. 3 show that the grinding wheels 32 are in a position of grinding the second bevels 143 and 146. Referring to FIG. 5 and FIG. 6 , the position of the grinding wheels 32 are changed for grinding the first bevel 142 and 145. It is understood that, the grinding wheels 32 of the grinding heads 30a, 30b could be both motorized to grind or idle.
  • a first executive mechanism 33 is provided to connect the support 31 of the grinding head 30a and drive the grinding head 30a to rotate relative to the frame 20 around a pivot 310a.
  • the pivot 310a is shielded by the grinding head 30a in FIG. 2 , and at least part of the pivot 310a is shown in FIG. 4 .
  • the pivot 310a extends perpendicular to the plane of the frame 20.
  • a pivot 310b associated with the grinding head 30b is visible in FIG. 2 , FIG. 4 and FIG. 5 .
  • the first executive mechanism 33 can be a pneumatic cylinder, a hydraulic cylinder and other types of actuating mechanisms.
  • the first executive mechanism 33 has two ends.
  • One end of the first executive mechanism 33 is pivoted on the frame 20, and the opposite other end of the first executive mechanism 33 is pivoted to the support 31 of the grinding head 30a.
  • the grinding head 30a rotates around the pivot 310a and is shifted between two positions for grinding the first and second bevels 142, 143.
  • the executive mechanism 33 moves backward, and the grinding wheel 32 of the grinding head 30a is in the position of grinding the second bevel 143 of the circular knife 10.
  • the executive mechanism 33 moves forward, and the grinding wheel 32 of the grinding head 30a is in the position of grinding the first bevel 142.
  • FIG. 3 and FIG. 6 exemplarily show that the grinding wheels 32 coincide with the first bevels 142, 145 and second bevels 143, 146. It is noted that in actual grinding process, the grinding wheels 32 may be not coincident with the first bevels 142, 145 and second bevels 143, 146. With the capability of rotation of the grinding wheel 32 and changing the angles between the grinding wheel 32 and the plane PP' of the cutting edge 140, grinding bevels of different angles at each side of the circular knife 10 with a single grinding unit is achieved. The angles that the grinding wheel 32 rotates relative to the plane PP' of the cutting edge 140 can be managed at a desired number of degrees by controlling the movement of the first executive mechanism 33.
  • the circular knife 10 to be ground has a single bevel at each side thereof. After grinding by the grinding unit provided by the present disclosure, a circular knife 10 as shown in FIG. 1 , which has two bevels of different angles at each side thereof, can be obtained.
  • the first executive mechanism 33 can be controlled to shift the grinding head 30a between two fixed positions, such as the two positions as shown in FIG. 2 and FIG. 5 .
  • a stopper can be disposed on the frame 20 for stopping the rotation of the support 31.
  • a bottom stopper 35 and a top stopper 36 are shown in FIG. 2 and FIG. 5 .
  • the first executive mechanism 33 moves backward to drive the support 31 to rotate around the pivot 310a in clockwise, until the support 31 abuts against the top stopper 36 on the frame 20.
  • the top stopper 36 With the top stopper 36, the rotation of the support 31 can be precisely controlled and the angle between the grinding wheel 32 and the plane PP' of the cutting edge 140 can be also precisely controlled to improve the grinding of the circular knife 10.
  • the first executive mechanism 33 moves forward to drive the support 31 to rotate around the pivot 310a in anticlockwise, until the support 31 abuts against the bottom stopper 35 of the frame 20. With the bottom stopper 35, the rotation of the support 31, and the angle between the grinding wheel 32 and the plane PP' of the cutting edge 140 can be precisely controlled to improve the grinding of the circular knife 10.
  • the grinding wheel 32 rotates around the intersection A of the first and second bevels 142, 143, the grinding wheel 32 would match the first and second bevels 142, 143 perfectly (if is needed) during the rotation of the grinding wheel 32.
  • the grinding wheel 32 rotates around point B where the pivot 310a locates, instead of the intersection A.
  • one of the bevels 142 and 143 would contact the grinding wheel 32 more than expected and the other would be apart from the grinding wheel 32, leading to imperfect contact and other problems such as excessive grinding or inadequate grinding on different portions of the circular knife 10. Therefore, there is a need to adjust the distance between the grinding wheel 32 and the bevel 142 or 143 after/before the rotation of the grinding wheel 32.
  • a second executive mechanism 34 is disposed on the grinding head 30a to meet such a requirement.
  • the second executive mechanism 34 drives the grinding head 30a to adjust the distance between the grinding head 30a and the bevel 142 or 143 of the circular knife 10.
  • the second executive mechanism 34 is disposed on the support 31, and connects the grinding wheel 32.
  • the second executive mechanism 34 drives the grinding wheel 32 to move relative to the support 31.
  • the second executive mechanism 34 can be a pneumatic cylinder, a hydraulic cylinder, a solenoid, a belt or cable driven device, an air bag, or other types of actuating mechanisms. As shown in FIG. 2 and FIG. 3 , the second executive mechanism 34 drives the grinding wheel 32 forward to the second bevel 143 of the circular knife 10. As shown in FIG. 5 and FIG. 6 , the second executive mechanism 34 drives the grinding wheel 32 forward to the first bevel 142 of the circular knife 10. The extent of the movement of the grinding wheel 32 driven by the second executive mechanism 34 can be controlled according to actual requirements such as whether need to grind the bevel 142 or 143 or the grinding extent of the bevel 142 or 143.
  • the forward movement of the second executive mechanism 34 is controlled by mechanical stops. As shown in FIG. 2 , the forward movement of the second executive mechanism 34 is stopped by a mechanical stop 38 formed on the frame 20 to control the grinding extent of the second bevel 143. As shown in FIG. 5 , the forward movement of the second executive mechanism 34 is stopped by a mechanical stop 37 formed on the frame 20 to control the grinding extent of the first bevel 142.
  • the grinding wheel 32 moves backward from the bevel 142 or 143 before changing the angle between the grinding wheel 32 and the plane PP' of the cutting edge 140.
  • the grinding wheel 32 is controlled to move forward to adjust the distance between the grinding wheel 32 and the bevel 142 or 143, and the extent of the forward movement of the grinding wheel 32 is controlled by the mechanical stop 37 or 38. Therefore, the second executive mechanism 34 functions as a clutch for making the grinding head 30a meet a suitable portion of the circular knife 10 or move apart therefrom.
  • the frame 20 can be designed as capable of moving along a direction parallel to the plane of the frame 20 and forward/backward the rotation axis OO' of the circular knife 10.
  • a rail (not shown) may be disposed on the frame 20, and the frame 20 may move along the rail. In such a manner, the grinding heads 30a, 30b and the circular knife 10 can also be meet or be parted as desired.
  • a circular knife of which each side having double bevels of different angles can be ground by a single grinding unit provided by the present disclosure.
  • related costs and maintenance are reduced by the solution provided in the present disclosure.
  • the circular knife having two bevels of different angles at each side thereof can be ground as desired, and the need for providing two or more grinding units for such a circular knife is eliminated, which simplifying the structure of the cutting machine and reducing the maintenance cost of the cutting machine.
  • the circular knife 10 to be ground can have two bevels on each side thereof and a chamfer 15 formed between the two bevels.
  • the circular knife 10 having such "rounded" bevels has a better robustness and capacity of penetration.
  • the chamfer 15 can be obtained by combining the separate movement of the first executive mechanism 33 and second executive mechanism 34 simultaneously during the grinding process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (11)

  1. Schleifeinheit zum Schleifen eines Rundmessers (10), wobei das Rundmesser eine Rotationsachse (OO') und eine durchgehende Schneidkante (140) aufweist, die eine Ebene (PP') senkrecht zur Rotationsachse (OO') des Rundmessers festlegt, und die zwei Seiten (141, 144) umfasst, wobei jede Seite der Schneidkante zwei Schrägen (142, 145, 143, 146) aufweist und wobei sich die Winkel (α, β, α', β') zwischen den Schrägen und der Ebene (PP') der Schneidkante (140) voneinander unterscheiden; wobei die Schleifeinheit umfasst:
    einen Rahmen (20);
    und zwei Schleifköpfe (30a, 30b), die mit dem Rahmen (20) verbunden sind, um die beiden Seiten (141, 144) der Schneidkante (140) jeweils zu schleifen, wobei jeder Schleifkopf (30a, 30b) aus einem Schleifrad (32) besteht; und die Schleifeinheit ist gekennzeichnet durch die beiden Schleifköpfe (30a, 30b), die schwenkbar mit dem Rahmen verbunden sind; und weiterhin durch
    zwei erste Ausführungsvorrichtungen (33), die wirksam mit den beiden Schleifköpfen (30a, 30b) verbunden und entsprechend angepasst sind, um die Position der Schleifköpfe anzupassen, um die Winkel zwischen den Schleifköpfen und der Ebene (PP') der Schneidkante (140) zu verändern, wobei jede erste Ausführungsvorrichtung (33) angewendet wird, um das Schleifrad (32) in einen Winkel zu drehen, der geeignet ist, um jede der beiden Schrägen (142, 145, 143, 146) zu schleifen.
  2. Schleifeinheit gemäß Anspruch 1, wobei jeder Schleifkopf einen Träger (31) umfasst, auf dem das Schleifrad (32) angeordnet ist und wobei der Träger schwenkbar mit dem Rahmen (20) verbunden ist und jede erste Ausführungsvorrichtung (33) ist mit dem Träger (31) verbunden, um den Träger und das Schleifrad zum Verändern des Winkels zwischen dem Schleifrad und der Ebene (PP') der Schneidkante zu drehen.
  3. Schleifeinheit gemäß Anspruch 1 oder 2, weiterhin umfassend zwei zweite Ausführungsvorrichtungen (34), wobei jede zweite Ausführungsvorrichtung ist mit einem entsprechenden Schleifkopf (30a, 30b) verbunden, um den entsprechenden Schleifkopf zur Anpassung des Abstandes zwischen dem entsprechenden Schleifkopf und der Schneidkante (140) anzutreiben.
  4. Schleifeinheit gemäß Anspruch 3, wobei jede zweite Ausführungsvorrichtung (34) das Schleifrad (32) des entsprechenden Schleifkopfes (30a, 30b) verbindet, um das Schleifrad relativ zum Träger zu bewegen, um den Abstand zwischen dem Schleifrad und der Schneidkante zu verändern.
  5. Schleifeinheit gemäß einem der vorhergehenden Ansprüche, wobei jede erste Ausführungsvorrichtung (33) ausgebildet ist, um zu wechseln zwischen einer ersten Position, in der der entsprechende Schleifkopf (30a, 30b) eine der beiden Schrägen (142, 145, 143, 146) der entsprechenden Seite der Schneidkante (140) ausbildet, und einer zweiten Position, in der der entsprechende Schleifkopf die andere der beiden Schrägen (142, 145, 143, 146) der entsprechenden Seite der Schneidkante ausbildet.
  6. Schleifeinheit gemäß einem der vorhergehenden Ansprüche, wobei jede erste Ausführungsvorrichtung (33) angewendet wird, um das Schleifrad (32) so zu drehen, dass es mit jeder der Schrägen (142, 145, 143, 146) von jeder Seite der Schneidkante zusammenpasst.
  7. Schleifeinheit gemäß einem der vorhergehenden Ansprüche, wobei auf dem Rahmen (20) zwei Anschläge (35, 36) ausgebildet sind, die entsprechend den Schleifköpfen (30a, 30b) zugeordnet sind, um die Drehung des jeweiligen Schleifkopfs zu steuern.
  8. Schleifeinheit gemäß einem der vorhergehenden Ansprüche, wobei der Rahmen (20) ein festes Element ist und eine Ebene festlegt, die senkrecht zur Ebene (PP') der Schneidkante (140) verläuft, wobei jeder Schleifkopf über einen Drehzapfen schwenkbar mit dem Rahmen verbunden ist, und wobei sich der Drehzapfen (310a, 310b) senkrecht zur Ebene des Rahmens erstreckt.
  9. Schleifeinheit gemäß Anspruch 7, wobei der Rahmen in der Lage ist, sich entlang einer Richtung parallel zu der Ebene des Rahmens in Bezug auf die Rotationsachse (OO') des Rundmessers (10) vor und zurück zu bewegen.
  10. Schneidemaschine zum Schneiden eines Holzscheits, wobei die Schneidemaschine umfasst:
    ein Rundmesser mit einer Rotationsachse und einer durchgehenden Schneidkante, die eine Ebene senkrecht zur Rotationsachse festlegt und zwei Seiten aufweist; und
    eine Schleifeinheit gemäß einem der vorhergehenden Ansprüche, um das Rundmesser zu schleifen.
  11. Schneidemaschine gemäß Anspruch 10, wobei jede Seite der Schneidkante zwei Schrägen bildet, und sich die Winkel zwischen den Schrägen und der Ebene der Schneidkante voneinander unterscheiden.
EP14425034.7A 2014-03-19 2014-03-19 Schneidemaschine mit Schleifeinheit Active EP2921256B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES14425034T ES2715374T3 (es) 2014-03-19 2014-03-19 Máquina de corte con unidad de rectificado
PL14425034T PL2921256T3 (pl) 2014-03-19 2014-03-19 Krajarka z urządzeniem do szlifowania
EP14425034.7A EP2921256B1 (de) 2014-03-19 2014-03-19 Schneidemaschine mit Schleifeinheit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14425034.7A EP2921256B1 (de) 2014-03-19 2014-03-19 Schneidemaschine mit Schleifeinheit

Publications (2)

Publication Number Publication Date
EP2921256A1 EP2921256A1 (de) 2015-09-23
EP2921256B1 true EP2921256B1 (de) 2018-12-19

Family

ID=50543547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14425034.7A Active EP2921256B1 (de) 2014-03-19 2014-03-19 Schneidemaschine mit Schleifeinheit

Country Status (3)

Country Link
EP (1) EP2921256B1 (de)
ES (1) ES2715374T3 (de)
PL (1) PL2921256T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11752591B2 (en) 2020-03-17 2023-09-12 Kimberly-Clark Worldwide, Inc. Closed loop control system for blade sharpening

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106826424B (zh) * 2017-03-16 2019-02-15 金国品 圆刀磨刀机
CN112692580B (zh) * 2021-01-05 2021-12-14 湖南涟钢菱峰实业有限公司 一种钢管切割机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1163932A (en) * 1966-02-14 1969-09-10 Glacier Co Ltd Improvements in or relating to Sharpening Apparatus
IT1233279B (it) * 1989-04-05 1992-03-26 Perini Finanziaria Spa Troncatrice per il taglio di bastoni di materiale cartaceo e simili
ITFI20020197A1 (it) 2002-10-18 2004-04-19 Perini Fabio Spa Una macchina troncatrice con un gruppo di affilatura per una lama, metodo di affilatura e lama per detta macchina
ITFI20020207A1 (it) 2002-10-30 2004-04-30 Perini Fabio Spa Gruppo di affilatura e macchina troncatrice comprendente almeno una lama e detto gruppo di affilatura

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11752591B2 (en) 2020-03-17 2023-09-12 Kimberly-Clark Worldwide, Inc. Closed loop control system for blade sharpening

Also Published As

Publication number Publication date
ES2715374T3 (es) 2019-06-04
EP2921256A1 (de) 2015-09-23
PL2921256T3 (pl) 2019-07-31

Similar Documents

Publication Publication Date Title
US9597764B2 (en) Cutting machine with grinding unit
EP2921256B1 (de) Schneidemaschine mit Schleifeinheit
JP6297693B2 (ja) 刃研磨用コントロール装置
US10843359B2 (en) Connecting cut assembly
US6460441B1 (en) On-demand skip perforating
US10035235B2 (en) Device for sharpening blades
JP6926105B2 (ja) 板紙シートを切断するための装置及びその装置を備える機械
EP3074179B1 (de) Vorrichtung zum schärfen von klingen
US20170203456A1 (en) Cutting device for cutting tire components
US20200047444A1 (en) Dual box slotter
EP2777899A1 (de) Vorrichtung für die Bearbeitung von Kartonbogen
JP6520443B2 (ja) 外形カット装置
AU2007202431B2 (en) Tissue Paper Cutting Mechanism Having Upper Knife with Variable Spiral Curve Angle and Upper Knife Structure Therefor
JP2020138365A (ja) エッジカット装置
CN216098034U (zh) 玻璃板的端面加工装置
JP7167817B2 (ja) ガラス板の端面加工装置及びガラス板の製造方法
JP6730951B2 (ja) ナーリング装置及びナーリング付与方法
US20150050865A1 (en) Apparatus for sharpening rotating blades
JP6585367B2 (ja) 製函機の製函ユニット
JP3202181B2 (ja) 段ボール切断設備
CN118699468A (zh) 一种连续坯料多角度随动切割台
WO2012057642A1 (en) Blade assembly for a tobacco cutter
JP2012086320A (ja) シート裁断装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20160316

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180724

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MTORRES TISSUE S.R.L.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014038136

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1078172

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190115

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20181219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190319

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190319

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1078172

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190320

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2715374

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20190604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190419

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190419

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014038136

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20190920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190319

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190319

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190331

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190319

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602014038136

Country of ref document: DE

Representative=s name: HWP INTELLECTUAL PROPERTY, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 602014038136

Country of ref document: DE

Owner name: MAXIMA S.R.L., IT

Free format text: FORMER OWNER: MTORRES TISSUE S.R.L., LUCCA, IT

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: MAXIMA, SRL

Effective date: 20210518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181219

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240328

Year of fee payment: 11

Ref country code: GB

Payment date: 20240319

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20240314

Year of fee payment: 11

Ref country code: PL

Payment date: 20240314

Year of fee payment: 11

Ref country code: IT

Payment date: 20240313

Year of fee payment: 11

Ref country code: FR

Payment date: 20240326

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20240412

Year of fee payment: 11