EP2556920A2 - Dispositif d'aiguisage de lames d'un lame-couronne pour un déchiqueteur à aubage - Google Patents

Dispositif d'aiguisage de lames d'un lame-couronne pour un déchiqueteur à aubage Download PDF

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Publication number
EP2556920A2
EP2556920A2 EP12175912A EP12175912A EP2556920A2 EP 2556920 A2 EP2556920 A2 EP 2556920A2 EP 12175912 A EP12175912 A EP 12175912A EP 12175912 A EP12175912 A EP 12175912A EP 2556920 A2 EP2556920 A2 EP 2556920A2
Authority
EP
European Patent Office
Prior art keywords
knife
grinding
knife ring
turntable
ring
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.)
Granted
Application number
EP12175912A
Other languages
German (de)
English (en)
Other versions
EP2556920A3 (fr
EP2556920B1 (fr
Inventor
Wolfgang Holzer
Lothar Steiner
Sven Zimmer
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.)
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Original Assignee
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
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 Siempelkamp Maschinen und Anlagenbau GmbH and Co KG filed Critical Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Publication of EP2556920A2 publication Critical patent/EP2556920A2/fr
Publication of EP2556920A3 publication Critical patent/EP2556920A3/fr
Application granted granted Critical
Publication of EP2556920B1 publication Critical patent/EP2556920B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B24B3/363—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of blades mounted on a turning drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B27G13/08—Cutter blocks; Other rotary cutting tools in the shape of disc-like members; Wood-milling cutters
    • B27G13/10—Securing the cutters, e.g. by clamping collars

Definitions

  • the invention relates to a device for sharpening, in particular re-sharpening of knives and possibly wear plates of a knife ring for a Messerringzerspaner by grinding.
  • Messerringzerspaner serve the production of chips or the like material for the production of wood-based panels, z. As chipboard or the like.
  • the raw wood is z. B. as bulk material, for. B. in the form of wood chips, fed.
  • the Messerringzerspaner in this case has an outer rotating blade ring and a likewise rotatably driven within the blade ring racket wheel, which is also referred to as a rotor.
  • On the knife ring a plurality of knives in / on knife holders is attached.
  • the knife holder is z. B. from a holding plate and connected to the holding plate via at least one clamping screw clamping plate together, wherein the knife is fixed with the clamping screw between the holding plate and clamping plate.
  • the invention also includes a knife ring chipper in the embodiment as a long wood chipper, in which no inner racket wheel is provided.
  • the sharpening of the knives is done by grinding their built-in knife ring state under the slow rotation, wherein prior to sharpening all the knives loosened one after the other in their holder and advanced by an amount corresponding to the cutting wear in their effective range. In this advanced position, the knives are re-clamped and then pre-programmed to achieve a desired cutting board on the relevant surface of the knife carrier radial grinding feed, taking into account the state of wear of this area.
  • the grinding device used is a grinding device with a grinding wheel, which is usually sharpened by wet grinding.
  • the grinding device is mounted on a carrier which is movable by means of a cross slide in the axial and radial directions.
  • a tool combination is used which is mounted on a tool stand. This tool combination initially has a screw for loosening and re-tightening the clamping screws on the knife holder and a knife ram for each advancing the Zerspanmesser.
  • a holding-down device is provided, which ensures the immobilization of the loosened knife holding plates during the individual knife feeds concerned. All tools are programmatically pneumatically operated.
  • the security against rotation is removed and the grinding tools and the knife basket are rotated relative to one another so that the grinding tool reaches a new working position in order to grind another knife or a further group of knives.
  • This cycle of canceling the anti-rotation and the rotation of the grinding tool and knife basket relative to each other is continued until all knives are ground, so that the knife basket is then inserted back into the chipper.
  • the invention has for its object to provide a device of the type described above, which in a simple structure a swift and proper sharpening and especially re-sharpening the knife of a Messerringzerspaners allows.
  • the invention is initially based on the recognition that it is particularly advantageous to perform the machining outside of the Messerringzerspaners in the horizontal state of the removed blade ring.
  • the grinding device is introduced into the interior of the knife ring and the knife ring can be used for grinding the knife z. B. continuously (slowly) to be rotated.
  • the horizontal arrangement of the knife ring has the advantage that a stable position of the knife ring is ensured, so that in particular deformations of the knife ring, which stands alone in standing orientation which can give rise to gravity, be easily prevented. Because the knife ring usually has a mass of more than 1 ton. Incidentally, high feed forces can easily be applied in the horizontal position.
  • the processing in a lying position has the additional advantage that the grinding device can be inserted from above into the knife ring, so that the abrasive particles or the grinding dust can be easily dissipated down.
  • Preference is given to working by means of dry grinding, particularly preferably with a belt grinder. Coolants required in wet grinding can thus be dispensed with in this preferred embodiment.
  • the device according to the invention allows the processing of the knife ring in horizontal orientation, in particular, in a particularly simple manner, because the turntable and the grinding device are arranged on a pivoting table.
  • the Messerringzerspaner in standing arrangement (ie with horizontally aligned axis) mounted knife ring can thus be removed in this standing orientation of the Messerringzerspaner and put on the device according to the invention, ie the sharpening machine according to the invention.
  • the pivot table can be pivoted and thus the knife ring from the stationary position to be converted into the lying processing position. Since both the turntable and the grinder are attached to this turntable, the whole assembly is tilted as a whole, so that then can be started quickly with the grinding.
  • the processing of the knife ring in horizontal arrangement is therefore carried out according to the invention in a particularly economical manner.
  • the grinding device on the turntable is movable relative to the turntable and / or the turntable relative to the grinding device in the axial direction and in the radial direction (relative to the axis of the knife ring mounted on the turntable).
  • the knife ring are firmly positioned on the turntable, while the grinding device is adjustable in different positions.
  • the grinding device is then, in the case of a lying knife ring, on the one hand, in the axial direction movable and consequently liftable and lowerable and, on the other hand, displaceable in the radial direction of the knife ring.
  • the invention can be implemented particularly advantageously by arranging a carrier carriage on the pivoting table which can be moved in the radial direction on the pivoting table by means of a feed drive or feed drive.
  • a holding device for the grinding device is preferably provided, which is arranged by means of a lifting drive on the carrier carriage. By moving the holding device relative to the carrier carriage, the grinding device can be moved in the axial direction. Consequently, a rotary drive for the turntable, a pivot drive for the turntable, a lifting drive for the grinding device and / or a feed drive for the grinding device are preferably provided. It may be electromotive and / or hydraulic and / or pneumatic drives.
  • the grinding of the knife during a "slow" rotation of the knife ring on the turntable wherein the grinding device then moved axially oscillating, z. B. is raised and lowered in an oscillating manner, so that the grinding device moves along the length of the knife.
  • the desired feed or the desired feed movement can take place in the radial direction.
  • the individual knives are processed while the knife ring is stationary.
  • the knife ring can be positioned in a certain position and then the respective knife can be processed by advancing and raising and lowering the grinding device. Subsequently, the knife ring can be further rotated by a predetermined angle and the next knife to be processed.
  • the device has a knife feed device or ejection device with one or more knife feed or ejection elements with which the individual knives are displaceable relative to the knife ring.
  • the knife holders are provided with suitable recesses, through which actuators can act on the knives, as it were from the rear, so that the knives can be advanced toward the center of the knife ring.
  • the invention now proposes that a squeezing device (ie knife feed device) with such squeezing elements (directly) is mounted on the swivel table. Consequently, not only the turntable and the grinding device with corresponding delivery option, but also the ejection device are particularly preferably fixedly arranged on the swivel table.
  • the entire arrangement can be pivoted with the pivoting table, so that the relative position of the pressing device always remains the same to the turntable and consequently to the fixed knife ring. Complex adjustment work is then not required every time. It is understood that the knife feed device fixedly mounted on the turntable has the movable feed elements, which are then movable relative to the turntable and work on the knives.
  • the blades are first released before expressing by z. B. the clamping screws are released.
  • the invention proposes that the knives be advanced by means of the squeezing device in / on the knife holders without releasing the clamping. A release of the generally known clamping screw is therefore no longer necessary.
  • the invention is based in this aspect of the surprising finding that the blades of a Messerringzerspaners for the purpose of re-grinding readily by suitable means can advance without the clamping must be solved in the knife holder.
  • the invention in this aspect, therefore, in a diametrical departure from the known methods, a new way and proposes to dispense with a release of the clamping and advance the knives for the purpose of regrinding in the clamped state by a desired amount.
  • This can be dispensed with the elaborate loosening of the clamping screws with the appropriate apparatus required, so that the regrinding of the knife can be done inexpensively and quickly, with the described device.
  • z. B. Express rods, in the sense of stamping in the grooves of the knife carrier and press the blades by a desired amount forward. These are provide the ejectors with suitable drives.
  • the invention proposes that one or more horizontally movable handrails are attached to the machine frame of the sharpening device, which are also referred to as expansion bars and which are movable in the horizontal direction. These serve to receive the standing knife ring and to drive against the turntable.
  • the knife ring is z. B. fed to the sharpening machine on a separate car in a standing orientation. There then the handrails can be extended, so that the knife ring is taken from the car. By retracting the handrails, the knife ring is then retracted into the sharpening machine.
  • the swivel table is initially in the vertical orientation, so that he can record the knife ring in a standing orientation (with a horizontal axis). The knife ring is then fixed to the turntable and consequently on the turntable and then the knife ring can be transferred by means of the turntable in the described manner in the lying processing position.
  • the device is characterized by a compact design.
  • the blades of the knife ring are sharpened in the manner described with the device according to the invention.
  • the device according to the invention is not only suitable for sharpening the knives, but also for sharpening the wear plates ("wear shoes") with one and the same grinding device. For this purpose, however, it is then expedient to push back the blades behind the inner surfaces of the wear plates, so that subsequently the wear plates can be ground.
  • Fig. 1 is a cutting machine in the embodiment as a knife ring chipper for the cutting or crushing of wood, especially for the production of wood chips or the like material shown.
  • a rotating (outer) blade ring 2 and on the other hand arranged a rotating within the blade ring 3 beater. Both the knife ring 2 and the beater wheel 3 are driven by suitable shafts. Details are not shown.
  • knife ring 2 on the one hand and beater wheel 3 on the other hand rotate in opposite directions.
  • Fig. 1 shows the Messerringzerspaner frontally open housing, so that in particular the blade ring 2 and the beater wheel 3 are visible inside.
  • the wood is used as bulk material, eg. B. supplied in the form of wood chips.
  • FIG. 2 is fragmentary illustrated the knife ring 2 in the disassembled state in the region of a processing device. It has two axially spaced annular discs 2a, between which a plurality of knife carriers 2b are attached. It can be seen that each blade carrier 2b is equipped on the one hand with a knife 6 and on the other hand with a wear plate 7, wherein the wear plates are also referred to as wear shoes 7.
  • the wear plates 7 are mounted on the inside of the knife ring in tangential alignment. With their inner surfaces 8, they form the inner surface of the knife ring 2.
  • the knives 6 are arranged at a predetermined angle ⁇ relative to the wear plates 7. In each case, the knives protrude above the inner surface 8 of the wear plate 7 between two adjacent wear plates 7 with a predetermined knife edge.
  • Messervorstand here means the Messervorstand set for the operation.
  • the knives 6 are attached exchangeably to knife holders 9. For this purpose, clamping screws 10 are provided, with which the knives 6 are clamped to the knife holders.
  • the knife holder 9 can z. B. composed of retaining plate and clamping plate.
  • the knives 6 of the knife ring 2 must be resharpened or reground at regular intervals. For this purpose, the blade ring 2 from the Messerringzerspaner according to Fig. 1 expanded and in the in the Fig.
  • processing device 11 introduced.
  • Essential components of this processing device 11 are, on the one hand, a grinding device 12 and, on the other hand, a turntable 13, on which the removed knife ring is fastened, in such a way that the knife ring 2 is rotatable with or on the turntable 13.
  • the grinding device 12 is movable relative to the turntable 13 and the knife ring 2 mounted thereon in the axial and radial directions, with respect to the axis A of the knife ring.
  • the Fig. 3 to 6 show the processing device 11 in different functional positions.
  • the background is the fact that the knife ring 2 is removed from the knife ring chipper in a vertical arrangement and then processed in the processing device 11 in a horizontal arrangement.
  • the turntable 13 and the grinding device 12 are arranged on a pivot table 24, wherein the pivot table 24 for tilting the knife ring 2 from an extended position with a horizontal axis in a machining position with a vertical axis about a horizontal axis 29 pivotally a machine frame 14 is attached.
  • Fig. 6 shows the processing device 11 with knife ring 2 in the horizontal processing position, in which the grinding is done by means of the grinding device 12.
  • Fig. 3 shows the processing device first with horizontally arranged pivoting table 24 without mounted blade ring. From this first functional position, the processing device is first in the in Fig. 4 shown converted second functional position, wherein the pivot table is arranged vertically here. In this functional position, the knife ring 2 can now be taken over by the transport carriage, not shown, or the like.
  • the processing device on the machine frame 14 has two holding rods 31, which are retractable and extendable, and consequently are movable in the horizontal direction, so that they can take over the standing knife ring and drive against the turntable 24.
  • the knife ring 2 is thus accepted in a standing arrangement in the processing device 11 and then fixed to the turntable 13.
  • the turntable 13 has a plurality of fastening elements 30.
  • the pivot table 24 can be pivoted about the horizontal axis 29 by means of the pivot drive 25, so that the pivot table 24 from the vertical position to the horizontal position and thus the blade ring 2 from the standing position is transferred to the lying position in which the axis of the knife ring is vertically aligned.
  • Fig. 5 and 6. Fig. 6 Consequently shows the processing device 11 with mounted blade ring 2 in the machining position in which the blade ring 2 is in a horizontal arrangement with vertically aligned axis A.
  • the swivel table is arranged in the embodiment as a hydraulic drive with one or more hydraulic cylinders, which operate on the swivel table via a lever arrangement.
  • the grinding device 12 is arranged on the pivot table 24, but relative to the turntable 13 in the axial direction and radial direction (relative to the axis A of the rotary table mounted on the knife ring) is movable.
  • the grinding device 12 can be lowered in the axial direction Y, so that it dips into the blade ring 2.
  • the grinding of the knife 6 is preferably carried out while the grinding device 12 is running by slowly rotating the knife ring 2 around the grinding device 12 around.
  • this is structurally realized in that on the pivoting table 24, a carrier carriage 15 is arranged, wherein the carrier carriage 15 is movable relative to the machine frame and consequently relative to the pivot table in the radial direction X and consequently positionable.
  • linear guides 16 are provided for this purpose.
  • a holding device 17 is attached to the grinding device, in such a way that the holding device 17 in the axial direction Y on the carrier carriage 15 is movable. This means that the holding device 17, to which in turn the grinding device 12 is attached, can be raised and lowered.
  • vertically oriented linear guides 18 are provided between carrier carriages 15 and holding device 17.
  • a merely indicated rotary drive 19 is provided for the turntable 13.
  • the grinding device 12 is designed as a belt grinding device. It has a grinding drive 21 for driving the grinding belt 20.
  • the grinding device 12 and its holding device 17 is on the carrier carriage 15 by means of a lifting drive 22 movable, z. B. raised and lowered.
  • a merely indicated feed or feed drive 23 can be provided, with which the grinding device 12 or the carrier carriage 15 can be moved in the radial direction X.
  • the pivoting table 24 with a pivot drive 25 is pivotable about the pivot axis 29.
  • a squeezing device 26 is fixed for the knife, which has a plurality of Ausdrückmaschine 27.
  • This ejection device is referred to as a knife feed device 26.
  • the z. B. can be designed as expressing rods or punches, the individual can be Advance the knife of the knife ring 2 by a desired amount.
  • the feed device 26 has two feed rollers 28 assigned to the feed rods 27. The feed rods, as it were, pass through the knife carriers from behind by means of already provided grooves, so that they work from the rear of the knife onto the knives.
  • the advantage here is the fact that the feed device 26 is fixed (but optionally adjustable) is arranged on the pivoting table.
  • the turntable on the one hand with the attachment points 30 for the knife ring and the advancing device 26 on the other hand are thus fastened to each other in a fixed predetermined arrangement on the pivot table, so that their relative position, especially during pivoting of the pivot table 24, does not change.
  • the feed or squeezing device 26 operates without loosening the clamping of the blades and consequently without loosening the clamping screws.
  • the knives are consequently advanced with the expression elements 27 via their drives 28 without releasing the clamping (continuous).
  • the knife ring 2 is brought by means of the rotary drive in a specific position and advanced a single knife. Then the ring can be rotated further by a certain angle and the next knife can be advanced.
  • first all knives are advanced by a certain amount. Subsequently, then the grinding of all the knives can be done with rotating knife ring by means of the grinding device 12.
  • the pivot table 24 can again in the in Fig. 5 pivoted position shown and removed the knife ring 2 and re-installed in the Messerringzerspaner.
  • Fig. 10a first shows the knife 6 in the grinding position with indicated radius R of the grinding tool.
  • the positioning of the grinding device is indicated by the position line 33.
  • the knife ring would rotate and the knife would pass the grinder, so that the in Fig. 10a set geometry would be set.
  • the clearance angle is 0 in this case.
  • FIG. 10b shows Fig. 10b the ratios for a clearance angle grinding.
  • Fig. 10b First of all, the reference position 33 for grinding without clearance angle is shown. The grinding device is in the same position as in Fig. 10a , The radius R is again drawn. It is in a comparative consideration of Fig. 10a and 10b recognizable that the knife ring in the proportions according to Fig. 10b is positioned differently than according to Fig. 10a , Because the concrete to be machined knife is offset to the Positioned axis of the grinding device. The position of the knife for clearance angle cutting is indicated by the position line 34. The radius R of the grinding device is again shown. By the offset of the blade 6 relative to the grinding device 12 can now be a clearance angle grind.
  • the knife feed device 26 is again "stationary" attached to the swivel table after adjustment, so that do not change the relative positions of knife ring and knife feed device 26 during pivoting of the swivel table.
  • the device according to the invention can consequently be used universally, for. B. also for the free-angle grinding. By replacing the components of the grinding device, z. As the grindstone or the grinding roller in the belt grinder preferably used different shapes or radii can be generated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP12175912.0A 2011-08-09 2012-07-11 Dispositif d'aiguisage de lames d'un lame-couronne pour un déchiqueteur à aubage Not-in-force EP2556920B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011052538A DE102011052538A1 (de) 2011-08-09 2011-08-09 Vorrichtung zum Schärfen von Messern eines Messerrings für einenMesserringzerspaner

Publications (3)

Publication Number Publication Date
EP2556920A2 true EP2556920A2 (fr) 2013-02-13
EP2556920A3 EP2556920A3 (fr) 2016-04-20
EP2556920B1 EP2556920B1 (fr) 2017-09-06

Family

ID=46514138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12175912.0A Not-in-force EP2556920B1 (fr) 2011-08-09 2012-07-11 Dispositif d'aiguisage de lames d'un lame-couronne pour un déchiqueteur à aubage

Country Status (3)

Country Link
EP (1) EP2556920B1 (fr)
CN (1) CN102950514B (fr)
DE (1) DE102011052538A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104972539A (zh) * 2014-04-07 2015-10-14 向喜娃 履带式刨削片机
CN106736893A (zh) * 2017-03-14 2017-05-31 石嘴山市金辉科贸有限公司 一种犁刀打磨校正装置
BE1026408B1 (de) * 2018-07-17 2020-07-28 Deere & Co Feldhäcksler mit einer häckseltrommel und einer schleifeinrichtung
CN113547392A (zh) * 2021-09-02 2021-10-26 常州市阿卡龙精密机械有限公司 一种刀具修磨设备
CN118418247A (zh) * 2024-05-10 2024-08-02 承德森禧木业有限公司 一种刨片机用刀环小车

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CN104632809B (zh) * 2015-03-01 2016-09-14 周玉翔 一种握把式刀环连接器
DE102015003520B4 (de) 2015-03-20 2016-11-24 B. Maier Zerkleinerungstechnik Gmbh Verfahren und Vorrichtung zum Schleifen von Messern und Verschleißplatten eines Messerringes
DE202015002132U1 (de) 2015-03-20 2016-05-23 B. Maier Zerkleinerungstechnik Gmbh Vorrichtung zum Schleifen von Messern und Verschleißplatten des Messerringes eines Messerringzerspaners
CN106738165B (zh) * 2016-11-29 2022-02-22 巫溪县渝星建材有限责任公司 一种木材刨花机用刀筒
DE102020110470A1 (de) 2020-04-17 2021-10-21 Glaß & Wolff Metalltechnik GmbH & Co. KG Schleifvorrichtung zum Schleifen von Schneideinheiten und Aufbereitungsanlage zum Aufbereiten von gebrauchten Schneideinheiten
CN112497399B (zh) * 2020-12-01 2022-07-01 安徽豪诚建筑安装工程有限公司 一种建材用碎木刨花装置

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EP0835721B1 (fr) 1996-10-10 2001-11-21 B. Maier Zerkleinerungstechnik GmbH Procédé et dispositif pour dresser les couteaux d'un broyeur

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Publication number Priority date Publication date Assignee Title
DE4316514C2 (de) 1993-05-18 1996-02-08 Pallmann Kg Maschf Verfahren und Vorrichtung zum Nachschärfen der Messer von Zerkleinerungsmaschinen
EP0626234B1 (fr) 1993-05-18 1997-05-21 Pallmann Maschinenfabrik Gmbh + Co. Kg Procédé et dispositif pour réaflûter les couteaux d'un broyeur
EP0835721B1 (fr) 1996-10-10 2001-11-21 B. Maier Zerkleinerungstechnik GmbH Procédé et dispositif pour dresser les couteaux d'un broyeur

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104972539A (zh) * 2014-04-07 2015-10-14 向喜娃 履带式刨削片机
CN106736893A (zh) * 2017-03-14 2017-05-31 石嘴山市金辉科贸有限公司 一种犁刀打磨校正装置
BE1026408B1 (de) * 2018-07-17 2020-07-28 Deere & Co Feldhäcksler mit einer häckseltrommel und einer schleifeinrichtung
CN113547392A (zh) * 2021-09-02 2021-10-26 常州市阿卡龙精密机械有限公司 一种刀具修磨设备
CN118418247A (zh) * 2024-05-10 2024-08-02 承德森禧木业有限公司 一种刨片机用刀环小车

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Publication number Publication date
EP2556920A3 (fr) 2016-04-20
CN102950514A (zh) 2013-03-06
CN102950514B (zh) 2015-11-18
DE102011052538A1 (de) 2013-02-14
EP2556920B1 (fr) 2017-09-06

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