EP2014411A1 - Schleifmaschine - Google Patents

Schleifmaschine Download PDF

Info

Publication number
EP2014411A1
EP2014411A1 EP08104685A EP08104685A EP2014411A1 EP 2014411 A1 EP2014411 A1 EP 2014411A1 EP 08104685 A EP08104685 A EP 08104685A EP 08104685 A EP08104685 A EP 08104685A EP 2014411 A1 EP2014411 A1 EP 2014411A1
Authority
EP
European Patent Office
Prior art keywords
knife
upper plate
grinding
mounting tool
groove
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.)
Withdrawn
Application number
EP08104685A
Other languages
English (en)
French (fr)
Inventor
Jean-Luc Deguy
Jean-Yves Beguinet
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.)
Deguy-Conge Ste
Original Assignee
Deguy-Conge Ste
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 Deguy-Conge Ste filed Critical Deguy-Conge Ste
Publication of EP2014411A1 publication Critical patent/EP2014411A1/de
Withdrawn legal-status Critical Current

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
    • B24B3/365—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of rotary mower blades
    • 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
    • B24B3/40—Processes or apparatus specially adapted for sharpening curved edges
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/066—Work supports, e.g. adjustable steadies adapted for supporting work in the form of tools, e.g. drills

Definitions

  • the present invention relates, on the one hand, to a knife sharpening machine intended in particular for agricultural machines and, on the other hand, to the method of sharpening said knives.
  • Some machines comprise a fixed wheel driven by a motor in which moves, alternately or otherwise, a mounting tool on which is clamped the cutting member to be sharpened.
  • other machines comprise a fixed table on which is clamped the cutting member to be sharpened and a movable wheel driven by a motor and located above said table.
  • a first machine for sharpening cutting tools such as that described in the patent GB 1,222,386 , which consists of a movable table that can rotate with a handle, about a vertical axis, on a flanged support on a fixed table.
  • Said fixed table has grooves for positioning the assembly (movable table support) in front of a fixed grinding wheel located above the fixed table and rotating about a horizontal axis.
  • the movable table also comprises a tool for fixing the cutting tool to be sharpened and to adjust its position relative to the grinding wheel, using a micrometer.
  • the sharpening is then obtained by performing reciprocating movements of the tool in contact with the grinding wheel and progressively bringing the tool closer to the grinding wheel.
  • This type of machine given the possible movement of the movable table (only one rotation) can not adapt to all tools.
  • a sharpening device for re-sharpening including silage truck blades, such as that described in the patent EP 0 467 383 .
  • This device comprises a frame, a two-part expandable support pivotable about a vertical axis fixed on said frame, a driving motor of at least one grinding wheel fixed on said support so as to be able to pivot about the axis. longitudinal of the latter and then to be locked in position and a work table that can accommodate the blade to sharpen.
  • the extendible portion of the carrier carrying the motor is resiliently supported by means of a spring by means of a guide carriage on a deformable jig to respect the curvature of the blade.
  • the work table is further pivotally mounted on the frame about a horizontal axis and its angular position is continuously variable to allow adjustment of the sharpening angle.
  • the sharpening of the blade is obtained by manually rotating the assembly (support - engine block - grinding wheel) around the vertical axis and resting on the template.
  • This device does not sharpen all types of blades because it is limited by the adjustment capabilities of the guide, which is not particularly suitable for blades with sharp angles.
  • the device is complex to implement because of the imprecise adjustment of the guide and the manipulation of the assembly (support - engine block - grinding wheel) which can be restrictive and tiring for a user, given the weight of the parts to move.
  • the present invention aims to overcome these various disadvantages by providing a compact sharpening machine, economical, easy to implement and use by limiting the fatigue of the user, and to sharpen a very large number of types of knives intended in particular for agricultural machines such as bale presses or mixers or self-loaders, while respecting the geometric and mechanical characteristics of the knives.
  • the subject of the present invention is a knife sharpening machine intended in particular for agricultural machines, comprising a frame forming a horizontal frame in the general shape of a rectangle fixed on vertical feet, a horizontal top plate, a grinding head. steerable located above said upper plate and comprising a wheel driven by a motor around a generally vertical axis, and a mounting tool comprising at least one handle, positioning means and at least one clamping means for positioning and to clamp a sharpening knife remarkable in that the mounting tool has at least one open groove whose curvature is homothetic to the curvature of the sharpening knife and adapted to cooperate with at least two guide means fixed on the top of the tray upper allowing to move manually using the handle and alternately the assembly formed by the out mounting and the knife resting on the upper plate and said guide means along said groove.
  • the assembly tooling is interchangeable and specific to each type of knife.
  • the re-sharpening machine 1 comprises a frame 2, an upper plate 3, a grinding head 4, and a mounting tool 5 for positioning and clamping a knife 6 to sharpen.
  • the frame 2 is advantageously an assembly of modular sections with grooves made of light alloy, for example aluminum forming a horizontal frame 7 in the general shape of a rectangle fixed on vertical legs 8.
  • the chassis 2 also accommodates between its feet 8 a lower horizontal structure 9 advantageously consisting of profiles similar to those of the chassis 2.
  • the upper plate 3 On the top of the frame 7 of the frame 2, the upper plate 3 is positioned horizontally.
  • This plate 3 has on its rear part at least a first support 10 generally U-shaped disposed near the middle of the long side of the upper plate 3 so that the wings of the U extend upwardly perpendicular to said plate 3, and provided at the end of at least one of its Wings of a blocking member 11.
  • the plate further has, on its front part, numerous grooves 12 opening generally elongated oblong shape parallel to a short side of said plate 3, rolling means 13 and at least two removable guide means 14 provided in the upper part with retaining means 15 forming a shoulder.
  • the rolling means 13 are advantageously metal bearing balls allowing easy sliding of the mounting tool 5 on the top of the upper plate 3.
  • the guide means 14 are preferably arranged on either side of the first support 10 so as to further constitute stops limiting the movement of the mounting tool 5.
  • the mounting tool 5 comprises a groove 16 opening, at least one handle 17, positioning means 18 and at least one clamping means 19 for clamping in position the knife 6 to sharpen.
  • the groove 16, which has a curvature homothetic to the curvature of the knife 6, is able, on the one hand, to cooperate with the guide means 14 and, on the other hand, to be kept in contact on the top of the upper plate 3 by the retaining means 15, to allow the reciprocating movement, by means of the handle 17, of the assembly consisting of the mounting tool 5 and the knife 6 along said groove 16.
  • the groove 16 comprises at least at one of its ends a portion 20 of generally S shape, on the one hand, a progressive disengagement of the assembly (mounting tool 5 - knife 6) of the grinding head 4 at the end of its forward movement and, secondly, a progressive engagement of said assembly under the grinding head 4 during its return movement.
  • portion 20 is to allow a progressive engagement of the assembly (mounting tool 5 - knife 6) under the grinding head 4 limiting the shocks due to sharpening and thus increasing the comfort of use of the sharpening machine 1, according to the invention.
  • the clamping means 19 are fast clamping manual devices such as for example grasshoppers.
  • the guide means 14 and the retaining means 15 are respectively and advantageously rollers and wide washers fixed on said rollers.
  • the grinding head 4 comprises a motor 21, a steerable plate 22, a second support 23 extending towards the front of the upper plate 3, an adjustable positioning stop 24 and a grinding wheel 25 driven directly by the motor 21 in the general shape of a cylinder and preferably of the bushel type.
  • the grinding head 4 is articulated via the rear end of the second support 23 on the first support 10 around a first horizontal pivot 26 whose axis is situated in a vertical plane parallel to a large side of the plateau 3.
  • the adjustable stop 24 of vertical axis makes it possible, on the one hand, to block the rotation of said second support 23 under the action of the weight of the motor 21 while resting on the top of the upper plate 3 and, on the other hand, on the other hand, to adjust the relative position of the second support 23 and thus of the grinding head 4 with respect to the upper plate 3.
  • the swiveling plate 22 generally U-shaped overall horizontal whose edge of its soul is parallel to a large side of the upper plate 3 and whose wings extend towards the rear of the upper plate 3, is hinged at the bottom said wings on the front end of the second support 23 around a second pivot 27 whose axis is parallel to that of the first pivot 26.
  • This plate 22 also has in the upper part of its wings tilting means 28 for on the one hand, to adjust the inclination of said plate 22 by rotating around said second pivot 27 and, on the other hand, to lock it in an inclined position by cooperating with clamping means 29 fixed on the second support 23. tilt is such that the back of the core of the plate 22 forms with the top of the upper plate 3 a first acute angle ⁇ ( figure 5 ).
  • the motor 21 is fixed on the back of the core of the plate 22 by means of bolts or the like.
  • said core comprises at least two opening holes 30 for locking in inclined position the motor 21 on the core of the plate 22 so that the longitudinal plane of the motor 21 perpendicular to the platinum core 22 forms with the top of the upper plate 3 a second angle ⁇ obtuse ( figure 4 ).
  • the motor 21 and therefore the wheel 25 has a double inclination with respect to the upper plate 3 according to the angles ⁇ and ⁇ .
  • the first angle ⁇ makes it possible to sharpen the knife 6 while respecting its cutting angle
  • the second angle ⁇ which is preferably equal to 3 °, is intended to allow a progressive engagement of the assembly (assembly tooling 5-knife 6) under the grinding wheel 25 during a forward movement.
  • the tilting means 28 are advantageously elongate slots whose longitudinal axis is an arc whose center is the center of the pivot 27.
  • the sharpening machine 1 is equipped with gripping means 31 and displacement means 32.
  • the displacement means 32 are wheels arranged at the bottom of two feet 8 consecutive.
  • the gripping means 31 are advantageously foldable handles along two consecutive legs 8 arranged opposite the legs 8 receiving the displacement means 32.
  • the feet 8 which are not equipped with displacement means 32, are advantageously provided with adjusting members 33, such as for example pads mounted on threaded rods and vertically screwed more or less in said feet 8 so as to adjust the total length of the latter.
  • the sharpening machine has a protective casing 34 surrounding the wheel and avoiding any risk of injury to the user of said machine 1.
  • a lubricating means 35 is put in place on the lower structure 9.
  • This lubricating means 35 makes it possible to limit the temperature rise of the knife 6 during grinding, comprises a reservoir 36, a pump 37 and its associated piping bringing the lubricant from said reservoir 36 to the contact zone between the grinding wheel 25 and the knife 6, and parts 38 forming a funnel recovery means arranged under the upper plate 3 collecting the lubricant passing through the grooves 12 of said plate 3 to said reservoir 36.
  • each type of knife 6 is associated with a specific mounting tool 5.
  • each type of knife 6 has a specific cutting angle, it is therefore necessary to vary the first angle ⁇ of inclination of the wheel 25.
  • This variation is obtained by loosening the clamping means 29 of the second support 23, then adjusting the inclination of the plate 22 by turning around the second pivot 27 until the desired first angle ⁇ and finally locking in said inclined position said plate 22 by tightening said clamping means 29.
  • the present invention also relates to the sharpening process of knives 6 using the sharpening machine 1, according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP08104685A 2007-07-10 2008-07-09 Schleifmaschine Withdrawn EP2014411A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0704990A FR2918593B1 (fr) 2007-07-10 2007-07-10 Machine d'affutage

Publications (1)

Publication Number Publication Date
EP2014411A1 true EP2014411A1 (de) 2009-01-14

Family

ID=38720568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08104685A Withdrawn EP2014411A1 (de) 2007-07-10 2008-07-09 Schleifmaschine

Country Status (2)

Country Link
EP (1) EP2014411A1 (de)
FR (1) FR2918593B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2311602A1 (de) * 2009-10-19 2011-04-20 Benedict Technische Handelsonderneming Schneidklingenschärfungsvorrichtung
CN103084937A (zh) * 2013-02-04 2013-05-08 牛祥永 一种用于磨削成型刀片的磨刀装置
CN105904288A (zh) * 2016-05-12 2016-08-31 成都欣思瑞特工具有限公司 一种刀具磨削修复装置
CN112356247A (zh) * 2020-11-02 2021-02-12 济南恒博新型建材开发有限公司 一种加气混凝土砌块切割机组
CN113246185A (zh) * 2021-05-11 2021-08-13 汪文杰 一种热熔胶粘剂制备加工系统及制备加工方法
CN119036217A (zh) * 2024-10-31 2024-11-29 常州昂迈工具有限公司 一种数控刀具磨削装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1222386A (en) 1968-11-21 1971-02-10 Capacity Engineering Co Ltd Improvements in or relating to grinding attachments for holding machine tool cutters or the like
GB1363955A (en) 1973-04-03 1974-08-21 Bray D G Machine for grinding shears
EP0196491A2 (de) * 1985-03-29 1986-10-08 Merz Metall- Und Kunststoffverarbeitungs Gmbh Vorrichtung zum Schleifen von im wesentlichen kreisförmig konkav gekrümmten Messern
DE3721870A1 (de) * 1987-07-02 1989-01-12 Claas Saulgau Gmbh Schleifvorrichtung fuer ladewagen-messer
EP0467383A1 (de) 1990-07-20 1992-01-22 FEIFFER MASCHINEN- UND ANLAGENBAU GmbH Schleifgerät
FR2712222A1 (fr) * 1993-11-10 1995-05-19 Pillet Andre Dispositif d'une machine polyvalente pour l'affûtage de lames pour matériel de boucherie.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1222386A (en) 1968-11-21 1971-02-10 Capacity Engineering Co Ltd Improvements in or relating to grinding attachments for holding machine tool cutters or the like
GB1363955A (en) 1973-04-03 1974-08-21 Bray D G Machine for grinding shears
EP0196491A2 (de) * 1985-03-29 1986-10-08 Merz Metall- Und Kunststoffverarbeitungs Gmbh Vorrichtung zum Schleifen von im wesentlichen kreisförmig konkav gekrümmten Messern
DE3721870A1 (de) * 1987-07-02 1989-01-12 Claas Saulgau Gmbh Schleifvorrichtung fuer ladewagen-messer
EP0467383A1 (de) 1990-07-20 1992-01-22 FEIFFER MASCHINEN- UND ANLAGENBAU GmbH Schleifgerät
FR2712222A1 (fr) * 1993-11-10 1995-05-19 Pillet Andre Dispositif d'une machine polyvalente pour l'affûtage de lames pour matériel de boucherie.

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2311602A1 (de) * 2009-10-19 2011-04-20 Benedict Technische Handelsonderneming Schneidklingenschärfungsvorrichtung
NL2003670C2 (nl) * 2009-10-19 2011-04-20 Benedict Tech Handelsonderneming Messenslijpmachine.
CN103084937A (zh) * 2013-02-04 2013-05-08 牛祥永 一种用于磨削成型刀片的磨刀装置
CN103084937B (zh) * 2013-02-04 2015-07-01 牛祥永 一种用于磨削成型刀片的磨刀装置
CN105904288A (zh) * 2016-05-12 2016-08-31 成都欣思瑞特工具有限公司 一种刀具磨削修复装置
CN105904288B (zh) * 2016-05-12 2018-01-19 成都欣思瑞特工具有限公司 一种刀具磨削修复装置
CN112356247A (zh) * 2020-11-02 2021-02-12 济南恒博新型建材开发有限公司 一种加气混凝土砌块切割机组
CN113246185A (zh) * 2021-05-11 2021-08-13 汪文杰 一种热熔胶粘剂制备加工系统及制备加工方法
CN113246185B (zh) * 2021-05-11 2022-09-13 上海惊叹化学有限公司 一种热熔胶粘剂制备加工系统及制备加工方法
CN119036217A (zh) * 2024-10-31 2024-11-29 常州昂迈工具有限公司 一种数控刀具磨削装置

Also Published As

Publication number Publication date
FR2918593B1 (fr) 2009-10-30
FR2918593A1 (fr) 2009-01-16

Similar Documents

Publication Publication Date Title
EP2014411A1 (de) Schleifmaschine
EP2300113A2 (de) Tragbare vorrichtung zur schärfung der kanten eines skis
EP1221348B1 (de) Hebestütze für eine Blechbiegemaschine
FR2825036A1 (fr) Presse plieuse pour toles, munie d'un dispositif mobile de butee
EP0624431B1 (de) Bandschleifmaschine für zylindrische Werkstücke
FR2552122A1 (fr) Appareillage pour supporter et guider une machine pour operer sur une matiere en feuille telle que de l'etoffe
WO2015173518A1 (fr) Dispositif d'affûtage à bandes abrasives disposées en croix
FR2847836A1 (fr) Dispositif de presse multifonction
FR3020075B1 (fr) Roto deneige
EP2659766A1 (de) Heckenschneider mit mitlaufendem Bediener
FR2900080A1 (fr) Dispositif de suivi de profil pour l'usinage d'un organe tubulaire
EP2214875A2 (de) Schneidekopf, anlage damit und einrichtwerkzeug dafür
FR2614570A1 (fr) Machine perfectionnee pour l'affutage des fers tranchants d'outils de coupe notamment pour la menuiserie
EP3535090A1 (de) Automatischer schärfer für eine kettensägekette
FR2465547A1 (fr) Affuteuse universelle
EP2756746B1 (de) Motorisierte Ausrüstung mit verbesserter Kupplung, entsprechende Kupplungs- und Bremsvorrichtung
FR2723021A1 (fr) Appareil pour aiguiser des instruments tranchants, en particulier des instruments dentaires tel que les curettes a detartrer
FR2927562B1 (fr) Dispositif de coupe longitudinale pour des profiles de type corniere en pvc ou aluminium
BE410595A (de)
FR2793431A3 (fr) Machine a chanfreiner
FR2529494A1 (fr) Procede et appareil d'affutage de chaines de scie perfectionnes
FR2686037A1 (fr) Machine a fraiser des chanfreins.
FR2832592A1 (fr) Machine destinee a predisposer des jambons crus a maturation en vue du desossement, et installation comprenant une telle machine
FR2523023A1 (fr) Secateur et machine pour affuter les tranchants de ce secateur
FR2460191A1 (fr) Appareil pour tailler en pointe l'extremite d'une piece de bois, telle que piquet, poteau, bois d'abattage debite

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

AX Request for extension of the european patent

Extension state: AL BA MK RS

AKX Designation fees paid

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

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090715