EP2014411A1 - Grinding machine - Google Patents

Grinding machine Download PDF

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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Withdrawn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
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German (de)
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/en
Withdrawn legal-status Critical Current

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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
    • B24B3/365—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.

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

Abstract

The machine (1) has foldable gripping units, and an interchangeable assembling tool (5) including an open groove (16) whose curvature is homothetical to a curvature of a cutter blade to be sharpened (6), where the groove is provided with an S-shaped portion (20). The groove is co-operated with two removable guiding units that are fixed on top of a horizontal upper plate (3) to manually and alternatively displace an assembly constituted by the tool and the blade, which is supported on the plate and the guiding units along the groove, using a handle (17). An independent claim is also included for a method for sharpening a cutter blade.

Description

La présente invention concerne, d'une part, une machine d'affûtage de couteaux destinés notamment à des machines agricoles et d'autre part, que le procédé d'affûtage desdits couteaux.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.

On connaît plusieurs types de machines d'affûtage de lame, de couteau ou de tout autre organe de coupe. Certaines machines comportent une meule fixe entraînée par un moteur sous laquelle se déplace, alternativement ou non, un outillage de montage sur lequel est bridé l'organe de coupe à affûter. A l'inverse, d'autres machines comportent une table fixe sur laquelle est bridé l'organe de coupe à affûter et une meule mobile entraînée par un moteur et située au-dessus de ladite table.Several types of blade sharpening machines, knife or any other cutting device are known. 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. Conversely, 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.

On connaît déjà, une première machine d'affûtage d'outils de coupe, comme celle décrite dans le brevet GB 1.222.386 , qui se compose d'une table mobile pouvant pivoter à l'aide d'une poignée, autour d'un axe vertical, sur un support bridé sur une table fixe. Ladite table fixe possède des rainures permettant de positionner l'ensemble (support-table mobile) devant une meule d'affûtage fixe située au-dessus de la table fixe et tournant autour d'un axe horizontal. La table mobile comporte également un outillage permettant de fixer l'outil de coupe à affûter et de régler sa position par rapport à la meule, à l'aide d'un micromètre. L'affûtage est alors obtenu en effectuant des mouvements alternatifs de l'outil en contact avec la meule et en rapprochant progressivement l'outil de la meule. Ce type de machine, compte tenu du déplacement possible de la table mobile (uniquement une rotation) ne peut pas s'adapter à tous les outils.It is already known, 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.

On connaît aussi une deuxième machine d'affûtage de cisailles, comme celle décrite dans le brevet GB 1.363.955 , qui se compose d'un support horizontal immobile muni de rails guides permettant de brider la lame à affûter et d'une meule circulaire entraînée par un moteur autour d'un axe vertical et apte à se déplacer sur lesdits rails qui permettent de suivre approximativement la courbure de la lame. L'affûtage est alors obtenu en effectuant des mouvements alternatifs de la meule le long des rails guides et en rapprochant progressivement la lame de la meule. Ce type de machine est délicat à mettre en oeuvre et permet difficilement de passer d'un type de lame à un autre.There is also known a second machine for sharpening shears, such as that described in the patent GB 1,363,955 , which consists of a stationary horizontal support provided with guide rails for clamping the blade to be sharpened and a circular grinding wheel driven by a motor about a vertical axis and able to move on said rails which make it possible to approximately follow the curvature of the blade. The sharpening is then obtained by performing reciprocating movements of the grinding wheel along the guide rails and progressively bringing the blade closer to the grinding wheel. This type of machine is difficult to implement and makes it difficult to switch from one type of blade to another.

Enfin, on connaît également un dispositif d'affûtage, pour ré-aiguiser notamment des lames de camion d'ensilage, comme celui décrit dans le brevet EP 0 467 383 . Ce dispositif comprend un bâti, un support extensible en deux parties pouvant pivoter autour d'un axe vertical fixé sur ledit bâti, un moteur d'entraînement d'au moins une meule fixé sur ledit support de sorte à pouvoir pivoter autour de l'axe longitudinal de ce dernier puis à être bloqué en position et une table de travail pouvant accueillir la lame à aiguiser. La partie extensible du support portant le moteur est soutenue, de façon élastique par le biais d'un ressort, au moyen d'un chariot de guidage sur un gabarit déformable pour respecter la courbure de la lame. La table de travail est en outre montée pivotante sur le bâti autour d'un axe horizontal et sa position angulaire est variable en continu pour permettre le réglage de l'angle d'affûtage. L'affûtage de la lame est obtenu en faisant manuellement pivoter l'ensemble (support - bloc moteur - meule) autour de l'axe vertical et en appui sur le gabarit. Ce dispositif ne permet pas d'aiguiser tous les types de lames car il est limité par les capacités de réglage du guide, qui n'est notamment pas adapté à des lames présentant des angles vifs. En outre, le dispositif est complexe à mettre en oeuvre du fait du réglage peu précis du guide et de la manipulation de l'ensemble (support - bloc moteur - meule) qui peut s'avérer contraignante et fatigante pour un utilisateur, compte tenu du poids des pièces à mettre en mouvement.Finally, there is also known 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. In addition, 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.

La présente invention a pour but de remédier à ces divers inconvénients en proposant une machine d'affûtage compacte, économique, facile à mettre en oeuvre et à utiliser en limitant la fatigue de l'utilisateur, et permettant d'affûter un très grand nombre de types de couteaux destinés notamment à des machines agricoles telles que presse à balle ou mélangeur ou encore auto-chargeuse, tout en respectant les caractéristiques géométriques et mécaniques des couteaux.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.

A cet égard, la présente invention a pour objet une machine d'affûtage de couteaux destinés notamment aux machines agricoles, comprenant un châssis formant un cadre horizontal en forme générale de rectangle fixé sur des pieds verticaux, un plateau supérieur horizontal, une tête de meulage orientable située au-dessus dudit plateau supérieur et comportant une meule entraînée par un moteur autour d'un axe globalement vertical, et un outillage de montage comportant au moins une poignée, des moyens de positionnement et au moins un moyen de serrage permettant de positionner et de brider un couteau à affûter remarquable en ce que l'outillage de montage possède au moins une rainure débouchante dont la courbure est homothétique à la courbure du couteau à affûter et apte à coopérer avec au moins deux moyens de guidage fixés sur le dessus du plateau supérieur permettant de déplacer manuellement à l'aide de la poignée et alternativement l'ensemble constitué par l'outillage de montage et le couteau en appui sur le plateau supérieur et sur lesdits moyens de guidage le long de ladite rainure.In this regard, 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.

Selon une autre caractéristique de l'invention, l'outillage de montage est interchangeable et spécifique à chaque type de couteaux.According to another characteristic of the invention, the assembly tooling is interchangeable and specific to each type of knife.

Afin de faire mieux ressortir d'autres avantages et caractéristiques de la présente invention, on décrira ci-après à titre d'exemple non limitatif, une forme d'exécution préférée de ladite invention, en référence aux dessins annexés sur lesquels :

  • la figure 1 est une vue avant en perspective de la machine d'affûtage,
  • la figure 2 est une vue arrière en perspective partielle agrandie (sans le moteur, la meule et le carter de protection),
  • la figure 3 est une vue agrandie de la partie haute de la figure 2,
  • la figure 4 est une vue de face partielle agrandie de la machine d'affûtage (sans le carter de protection),
  • la figure 5 est une vue de droite partielle agrandie de la machine d'affûtage (sans le carter de protection).
In order to bring out other advantages and features of the present invention, a preferred embodiment of the invention will be described hereinafter by way of nonlimiting example, with reference to the appended drawings in which:
  • the figure 1 is a perspective front view of the sharpening machine,
  • the figure 2 is an enlarged partial perspective rear view (without engine, grinder and guard),
  • the figure 3 is an enlarged view of the upper part of the figure 2 ,
  • the figure 4 is an enlarged partial front view of the sharpening machine (without the guard),
  • the figure 5 is an enlarged partial right view of the sharpening machine (without the guard).

En référence aux figures 1 à 5, la machine de ré-affûtage 1 selon l'invention comprend un châssis 2, un plateau supérieur 3, une tête de meulage 4, et un outillage de montage 5 permettant de positionner et de brider un couteau 6 à affûter.With reference to Figures 1 to 5 , the re-sharpening machine 1 according to the invention 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.

Le châssis 2 est avantageusement un assemblage de profilés modulaires à rainures en alliage léger par exemple de l'aluminium formant un cadre 7 horizontal en forme générale de rectangle fixé sur des pieds 8 verticaux. Le châssis 2 accueille également entre ses pieds 8 une structure inférieure 9 horizontale constituée avantageusement de profilés semblables à ceux du châssis 2.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.

Sur le dessus du cadre 7 du châssis 2, le plateau supérieur 3 est positionné horizontalement. Ce plateau 3 possède sur sa partie arrière au moins un premier support 10 en forme générale de U disposé au voisinage du milieu du grand côté du plateau supérieur 3 de sorte que les ailes du U s'étendent vers le haut perpendiculairement audit plateau 3, et muni à l'extrémité d'au moins une de ses ailes d'un organe de blocage 11. Le plateau possède en outre, sur sa partie avant, de nombreuses rainures 12 débouchantes en forme générale d'oblong allongé parallèle à un petit côté dudit plateau 3, des moyens de roulement 13 et au moins deux moyens de guidage 14 amovibles pourvus en partie supérieure de moyens de retenue 15 formant un épaulement.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.

Les moyens de roulement 13 sont avantageusement des billes porteuses métalliques permettant un glissement aisé de l'outillage de montage 5 sur le dessus du plateau supérieur 3.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.

Les moyens de guidage 14 sont de préférence disposés de part et d'autre du premier support 10 de manière à constituer en outre des butées limitant le déplacement de l'outillage de montage 5.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.

L'outillage de montage 5 comprend une rainure 16 débouchante, au moins une poignée 17, des moyens de positionnement 18 et au moins un moyen de serrage 19 permettant le bridage en position du couteau 6 à affûter. La rainure 16, qui a une courbure homothétique à la courbure du couteau 6, est apte, d'une part, à coopérer avec les moyens de guidage 14 et, d'autre part, à être maintenue en contact sur le dessus du plateau supérieur 3 par les moyens de retenue 15, afin de permettre le déplacement alternatif, à l'aide de la poignée 17, de l'ensemble constitué par l'outillage de montage 5 et le couteau 6 le long de ladite rainure 16.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.

De plus, la rainure 16 comporte au moins à l'une de ses extrémités une portion 20 en forme générale de S permettant, d'une part, un désengagement progressif de l'ensemble (outillage de montage 5 - couteau 6) de la tête de meulage 4 à la fin de son déplacement aller et, d'autre part, un engagement progressif dudit ensemble sous la tête de meulage 4 lors de son déplacement retour.In addition, 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.

On désigne ici par déplacement aller le déplacement de l'ensemble (outillage de montage 5 - couteau 6) le long de la rainure 16 qui consiste à engager en premier sous la tête de meulage 5 le côté dudit ensemble opposé à la portion 20 de la rainure 16. Il va alors de soi que le déplacement retour est un déplacement dans le sens contraire.In this case, the displacement of the assembly (mounting tooling 5 - knife 6) along the groove 16 which consists of engaging first under the grinding head 5 the side of the assembly opposite to the portion 20 of the groove 16. It goes without saying that the return movement is a displacement in the opposite direction.

On comprend bien que le but de la portion 20 est de permettre un engagement progressif de l'ensemble (outillage de montage 5 - couteau 6) sous la tête de meulage 4 limitant les chocs dus à l'affûtage et donc augmentant le confort d'utilisation de la machine d'affûtage 1, selon l'invention.It is understood that the purpose of the 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.

Pour permettre une mise en oeuvre simple, les moyens de serrage 19 sont des dispositifs manuels de bridage rapide tels que par exemple des sauterelles.To allow a simple implementation, the clamping means 19 are fast clamping manual devices such as for example grasshoppers.

Pour les mêmes raisons, les moyens de guidage 14 et les moyens de retenue 15 sont respectivement et avantageusement des galets et des rondelles larges fixées sur lesdits galets.For the same reasons, the guide means 14 and the retaining means 15 are respectively and advantageously rollers and wide washers fixed on said rollers.

Il va de soi que l'Homme du Métier n'aurait aucune difficulté pour positionner et dimensionner les moyens de guidage 14, les moyens de retenue 15 et la rainure 16 afin de permettre un déplacement aisé et sans à-coup de l'ensemble constitué par l'outillage de montage 5 et le couteau 6.It goes without saying that the skilled person would have no difficulty in positioning and dimensioning the guide means 14, the retaining means 15 and the groove 16 to allow easy and smooth movement of the assembly formed by the mounting tool 5 and the knife 6.

La tête de meulage 4 comprenant un moteur 21, une platine 22 orientable, un second support 23 s'étendant vers l'avant du plateau supérieur 3, une butée réglable 24 de positionnement et une meule 25 entraînée directement par le moteur 21 en forme générale de cylindre et de préférence de type boisseau. La tête de meulage 4 est articulée par l'intermédiaire de l'extrémité arrière du second support 23 sur le premier support 10 autour d'un premier pivot 26 horizontal dont l'axe est situé dans un plan vertical parallèle à un grand côté du plateau supérieur 3. La butée réglable 24 d'axe vertical permet, d'une part, de bloquer la rotation dudit second support 23 sous l'action du poids du moteur 21 en prenant appui sur le dessus du plateau supérieur 3 et, d'autre part, de régler la position relative du second support 23 et donc de la tête de meulage 4 par rapport au-dessus du plateau supérieur 3.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.

La platine 22 orientable, en forme générale de U globalement horizontal dont l'arête de son âme est parallèle à un grand côté du plateau supérieur 3 et dont les ailes s'étendent vers l'arrière du plateau supérieur 3, est articulée en partie basse desdites ailes sur l'extrémité avant du second support 23 autour d'un second pivot 27 dont l'axe est parallèle à celui du premier pivot 26. Cette platine 22 possède également en partie haute de ses ailes des moyens d'inclinaison 28 permettant, d'une part, de régler l'inclinaison de ladite platine 22 en tournant autour dudit second pivot 27 et, d'autre part, de la bloquer en position inclinée en coopérant avec des moyens de serrage 29 fixés sur le second support 23. Cette inclinaison est telle que le dos de l'âme de la platine 22 forme avec le dessus du plateau supérieur 3 un premier angle α aigu (figure 5).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 α ( figure 5 ).

Le moteur 21 est fixé sur le dos de l'âme de la platine 22 à l'aide des boulons ou similaires. Pour ce faire, ladite âme comporte au moins deux trous de fixation 30 débouchant permettant de bloquer en position inclinée le moteur 21 sur l'âme de la platine 22 de manière à ce que le plan longitudinal du moteur 21 perpendiculaire à l'âme de platine 22 forme avec le dessus du plateau supérieur 3 un second angle β obtus (figure 4).The motor 21 is fixed on the back of the core of the plate 22 by means of bolts or the like. To do this, 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 β obtuse ( figure 4 ).

Ainsi dans cette configuration, le moteur 21 et donc la meule 25 possède une double inclinaison par rapport au-dessus du plateau supérieur 3 suivant les angles α et β.Thus in this configuration, the motor 21 and therefore the wheel 25 has a double inclination with respect to the upper plate 3 according to the angles α and β.

Ainsi le premier angle α permet un affûtage du couteau 6 en respectant son angle de coupe, alors que le second angle β, qui est de préférence égal à 3°, a pour but de permettre un engagement progressif de l'ensemble (outillage de montage 5-couteau 6) sous la meule 25 lors d'un déplacement aller.Thus, the first angle α makes it possible to sharpen the knife 6 while respecting its cutting angle, while the second angle β, 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.

Les moyens d'inclinaison 28 sont pour des raisons de simplicité avantageusement des lumières allongées dont l'axe longitudinal est un arc de cercle dont le centre est le centre du pivot 27.For reasons of simplicity, the tilting means 28 are advantageously elongate slots whose longitudinal axis is an arc whose center is the center of the pivot 27.

Il va de soi que l'Homme du Métier n'aurait aucune difficulté pour remplacer lesdites lumières par une succession de trous placés le long dudit arc de cercle.It goes without saying that the skilled person would have no difficulty to replace said lights with a succession of holes placed along said arc.

Enfin pour faciliter son transport, la machine d'affûtage 1 est équipée de moyens de préhension 31 et de moyens de déplacement 32. Pour des raisons économiques et de simplicité, les moyens de déplacement 32 sont des roues disposées en partie basse de deux pieds 8 consécutifs. Afin de limiter l'encombrement de ladite machine 1, les moyens de préhension 31 sont avantageusement des poignées repliables le long de deux pieds 8 consécutifs disposés à l'opposé des pieds 8 recevant les moyens de déplacement 32.Finally, to facilitate its transport, the sharpening machine 1 is equipped with gripping means 31 and displacement means 32. For reasons of economy and simplicity, the displacement means 32 are wheels arranged at the bottom of two feet 8 consecutive. In order to limit the bulk of said machine 1, the gripping means 31 are advantageously foldable handles along two consecutive legs 8 arranged opposite the legs 8 receiving the displacement means 32.

Pour régler l'horizontalité de la machine d'affûtage 1, les pieds 8, qui ne sont pas équipés de moyens de déplacement 32, sont avantageusement munis d'organe de réglage 33, tels que par exemple des patins montés sur des tiges filetées et vissées verticalement plus ou moins dans lesdits pieds 8 de manière à régler la longueur totale de ces derniers.In order to adjust the horizontality of the sharpening machine 1, 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.

De plus, la machine d'affûtage possède un carter de protection 34 entourant la meule et évitant tout risque de blessure à l'utilisateur de ladite machine 1.In addition, the sharpening machine has a protective casing 34 surrounding the wheel and avoiding any risk of injury to the user of said machine 1.

Enfin, afin de respecter les caractéristiques mécaniques, notamment le traitement thermique initial appliqué à la partie tranchante du couteau 6, un moyen de lubrification 35 est mis en place sur la structure inférieure 9. Ce moyen de lubrification 35, permettant de limiter l'échauffement du couteau 6 lors de l'affûtage, comporte un réservoir 36, une pompe 37 et sa tuyauterie associée amenant le lubrifiant depuis ledit réservoir 36 jusqu'à la zone de contact entre la meule 25 et le couteau 6, et des pièces 38 formant entonnoir de récupération disposées sous le plateau supérieur 3 collectant le lubrifiant passant au travers des rainures 12 dudit plateau 3 jusqu'audit réservoir 36.Finally, in order to respect the mechanical characteristics, in particular the initial heat treatment applied to the cutting part of the knife 6, a lubricating means 35 is put in place on the lower structure 9. This lubricating means 35, making 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.

Compte tenu de la conception de la machine d'affûtage 1, et notamment de l'outillage de montage 5 qui possède une rainure 16 dont la forme respecte la courbure du couteau 6, on comprend bien que chaque type de couteau 6 est associé à un outillage de montage 5 spécifique.Given the design of the sharpening machine 1, including the mounting tool 5 which has a groove 16 whose shape respects the curvature of the knife 6, it is clear that each type of knife 6 is associated with a specific mounting tool 5.

Pour des raisons analogues, chaque type de couteau 6 possède un angle de coupe spécifique, il est donc nécessaire de faire varier le premier angle α d'inclinaison de la meule 25. Cette variation est obtenue en desserrant les moyens de serrage 29 du second support 23, puis en réglant l'inclinaison de la platine 22 en tournant autour du second pivot 27 jusqu'à obtenir le premier angle α souhaité et enfin en bloquant en position inclinée ladite platine 22 en serrant lesdits moyens de serrage 29.For similar reasons, each type of knife 6 has a specific cutting angle, it is therefore necessary to vary the first angle α 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 α and finally locking in said inclined position said plate 22 by tightening said clamping means 29.

La présente invention a également pour objet le procédé d'affûtage de couteaux 6 mettant en oeuvre la machine d'affûtage 1, conforme à l'invention.The present invention also relates to the sharpening process of knives 6 using the sharpening machine 1, according to the invention.

Le procédé d'affûtage de couteaux 6 comporte successivement les étapes suivantes :

  • relever la tête de meulage 4 en la faisant pivoter autour du premier pivot 26 vers l'arrière du plateau supérieur 3 et en la bloquant en position haute avec l'organe de blocage 11,
  • positionner le couteau 6 sur l'outillage de montage 5 à l'aide des moyens de positionnement 18,
  • brider le couteau 6 sur l'outillage de montage 5 à l'aide du moyen de serrage 19,
  • positionner l'ensemble (outillage de montage 5 - couteau 6) sur le plateau supérieur 3 de manière à permettre l'affûtage du couteau 6,
  • fixer les deux moyens de guidage 14 sur le plateau supérieur 3 au travers de la rainure 16 de l'outillage de montage 5 en prenant soin de mettre le côté de ladite rainure 16 opposé à la portion 20 en butée sur son moyen de guidage 14 associé afin de placer le couteau 6 hors du champ d'action de la meule 23,
  • abaisser la tête de meulage 4 en desserrant l'organe de blocage 11 et en la faisant pivoter autour du premier pivot 26 vers l'avant du plateau supérieur 3 jusqu'à ce que la butée réglable 24 soit en contact avec le dessus dudit plateau supérieur,
  • régler la distance entre la face inférieure de la meule 25 et le dessus du plateau supérieur 3 en agissant sur la butée réglable 24,
  • régler le premier angle α en agissant sur les moyens de serrage 29 du second support 23, puis en réglant l'inclinaison de la platine 22 en tournant autour du second pivot 27 et enfin bloquer la tête de meulage 4 en position inclinée,
  • démarrer le moteur 21 et le système de lubrification 35, et commencer un déplacement aller en engagent progressivement sous la meule 25, à l'aide de la poignée 17, l'ensemble (outillage de montage 5 - couteau 6) jusqu'à ce que la portion 20 de la rainure 16 soit en butée sur son moyen de guidage 14 associé,
  • commencer le déplacement retour en engageant progressivement sous la meule 25, à l'aide de la poignée 17, l'ensemble (outillage de montage 5 - couteau 6) jusqu'à ce que la rainure 16 soit en butée sur l'autre moyen de guidage 14,
  • exécuter des déplacements aller et retour successifs, à l'aide de la poignée 17, dudit ensemble en rapprochant progressivement si nécessaire la tête de meulage 4 du plateau supérieur 3 à l'aide de la butée réglable 24.
The method of sharpening knives 6 comprises successively the following steps:
  • raising the grinding head 4 by pivoting it around the first pivot 26 toward the rear of the upper plate 3 and blocking it in the up position with the locking member 11,
  • position the knife 6 on the mounting tool 5 using the positioning means 18,
  • clamping the knife 6 on the mounting tool 5 with the aid of the clamping means 19,
  • position the assembly (mounting tool 5 - knife 6) on the upper plate 3 so as to allow the sharpening of the knife 6,
  • fixing the two guide means 14 on the upper plate 3 through the groove 16 of the mounting tool 5 taking care to put the side of said groove 16 opposite the portion 20 abutting on its associated guide means 14 in order to place the knife 6 out of the field of action of the wheel 23,
  • lowering the grinding head 4 by loosening the locking member 11 and pivoting it around the first pivot 26 towards the front of the upper plate 3 until the adjustable stop 24 is in contact with the top of said upper plate ,
  • adjust the distance between the lower face of the grinding wheel 25 and the top of the upper plate 3 by acting on the adjustable stop 24,
  • adjusting the first angle α by acting on the clamping means 29 of the second support 23, then adjusting the inclination of the plate 22 by rotating around the second pivot 27 and finally blocking the grinding head 4 in an inclined position,
  • start the engine 21 and the lubrication system 35, and begin a movement go engage gradually under the grinding wheel 25, using the handle 17, the assembly (mounting tool 5 - knife 6) until the portion 20 of the groove 16 abuts on its associated guide means 14,
  • begin the return movement by progressively engaging under the grinding wheel 25, using the handle 17, the assembly (assembly tooling 5 - knife 6) until the groove 16 abuts the other means of guidance 14,
  • perform successive round trips, using the handle 17, said assembly gradually bringing closer if necessary the grinding head 4 of the upper plate 3 with the adjustable stop 24.

On comprend bien que le procédé d'affûtage de couteaux 6 mettant en oeuvre la machine d'affûtage 1, conforme à l'invention, est particulièrement simple et ne demande que peu d'efforts physiques à l'utilisateur, limitant ainsi sa fatigue, car ce dernier ne doit mettre en mouvement que l'ensemble (outillage de montage 5 - couteau 6) et non un bloc moteur équipée d'une meule.It is well understood that the sharpening process of knives 6 using the sharpening machine 1, according to the invention, is particularly simple and requires little physical effort to the user, thus limiting its fatigue, because the latter must put in motion only the assembly (assembly tool 5 - knife 6) and not a motor unit equipped with a grinding wheel.

Enfin, il va de soi que la présente invention n'est pas limitée à l'exemple de réalisation préférentiel et au domaine d'application décrits, mais qu'elle peut être modifiée ou adaptée en fonction des besoins ou des exigences particulières, sans pour autant sortir du cadre de l'invention.Finally, it goes without saying that the present invention is not limited to the preferred embodiment and the field of application described, but that it can be modified or adapted according to the needs or special requirements, without as far out of the scope of the invention.

Claims (9)

1. Machine d'affûtage (1) de couteaux (6) comprenant un châssis (2) formant un cadre (7) horizontal en forme générale de rectangle fixé sur des pieds (8) verticaux, un plateau supérieur (3) horizontal, une tête de meulage (4) orientable située au-dessus dudit plateau supérieur (3) et comportant une meule (25) entraînée par un moteur (21) autour d'axe globalement vertical, et un outillage de montage (5) comportant au moins une poignée (17), des moyens de positionnement (18) et au moins un moyen de serrage (19) permettant de positionner et de brider un couteau (6) à affûter, caractérisée en ce que l'outillage de montage (5) possède au moins une rainure (16) débouchante dont la courbure est homothétique à la courbure du couteau (6) à affûter et apte à coopérer avec au moins deux moyens de guidage (14) fixés sur le dessus du plateau supérieur (3) permettant de déplacer manuellement à l'aide la poignée (17) et alternativement, l'ensemble constitué par l'outillage de montage (5) et le couteau (6) en appui sur le plateau supérieur (3) et sur lesdits moyens de guidage (14) le long de ladite rainure (16). 1. Sharpening machine (1) for knives (6) comprising a frame (2) forming a horizontal frame (7) generally shaped rectangle fixed on feet (8) vertical, a top plate (3) horizontal, a grinding head (4) orientable above said upper plate (3) and comprising a grinding wheel (25) driven by a motor (21) about a generally vertical axis, and a mounting tool (5) comprising at least one handle (17), positioning means (18) and at least one clamping means (19) for positioning and clamping a knife (6) to be sharpened, characterized in that the mounting tool (5) has at least one less a groove (16) opening whose curvature is homothetic to the curvature of the knife (6) to be sharpened and adapted to cooperate with at least two guiding means (14) fixed on top of the upper plate (3) for manually moving using the handle (17) and alternatively, the set consisting of the tool mounting ge (5) and the knife (6) bearing on the upper plate (3) and on said guide means (14) along said groove (16). 2. Machine d'affûtage (1) suivant la revendication 1, caractérisée en ce que l'outillage de montage (5) est interchangeable et spécifique à chaque type de couteau (6). 2. Grinding machine (1) according to claim 1, characterized in that the mounting tool (5) is interchangeable and specific to each type of knife (6). 3. Machine d'affûtage (1) suivant l'une quelconque des revendications 1 ou 2, caractérisée en ce que la rainure (16) comporte à au moins l'une de ses extrémités une portion (20) en forme générale de S permettant un désengagement progressif de l'ensemble constitué par l'outillage de montage (5) et le couteau (6) de la tête de meulage (4). 3. grinding machine (1) according to any one of claims 1 or 2, characterized in that the groove (16) comprises at least one of its ends a portion (20) in the general shape of S allowing a progressive disengagement of the assembly consisting of the mounting tool (5) and the knife (6) of the head of grinding (4). 4. Machine d'affûtage (1) suivant l'une quelconque des revendications 1 à 3, caractérisée en ce que la meule (25) possède par rapport au-dessus du plateau supérieur (3) une double inclinaison suivant les angles (α, β) permettant, d'une part, l'affûtage du couteau (6) en respectant son angle de coupe et, d'autre part, l'engagement progressif de l'ensemble constitué par l'outillage de montage (5) et le couteau (6) sous la tête de meulage (4). 4. Machine grinding (1) according to any one of claims 1 to 3, characterized in that the grinding wheel (25) has relative to above the upper plate (3) following a double inclination angles (α, β) allowing, on the one hand, the sharpening of the knife (6) respecting its cutting angle and, on the other hand, the progressive engagement of the assembly constituted by the mounting tool (5) and the knife (6) under the grinding head (4). 5. Machine d'affûtage (1) suivant l'une quelconque des revendications 1 à 4, caractérisée en ce que le plateau supérieur (3) possèdent des moyens de roulement (13) tels que des billes porteuses. 5. grinding machine (1) according to any one of claims 1 to 4, characterized in that the upper plate (3) have rolling means (13) such as carrier beads. 6. Machine d'affûtage (1) suivant l'une quelconque des revendications précédentes, caractérisée en ce que les moyens de guidage (14) possèdent des éléments de retenue (15) garantissant l'appui de l'ensemble constitué par l'outillage de montage (5) et le couteau (6) sur le plateau supérieur (3). 6. grinding machine (1) according to any one of the preceding claims, characterized in that the guide means (14) have retaining elements (15) ensuring the support of the assembly consisting of the tooling mounting (5) and the knife (6) on the upper plate (3). 7. Machine d'affûtage (1) suivant l'une quelconque des revendications précédentes, caractérisée en ce que le châssis (2) possède des moyens de préhension (31) et de moyens de déplacement (32) tels que respectivement des. poignées repliables et des roues disposées sur au moins deux pieds (8) du châssis (2). 7. Grinding machine (1) according to any one of the preceding claims, characterized in that the frame (2) has gripping means (31) and displacement means (32) such that respectively. folding handles and wheels arranged on at least two legs (8) of the frame (2). 8. Machine d'affûtage (1) suivant l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comporte un dispositif de lubrification (35) placé sur la structure inférieure (9). 8. Machine grinding (1) according to any one of the preceding claims, characterized in that it comprises a lubricating device (35) placed on the lower structure (9). 9. Procédé d'affûtage de couteaux (6) mettant en oeuvre la machine d'affûtage (1) suivant l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte successivement les étapes suivantes : - relever la tête de meulage (4) en la faisant pivoter autour du premier pivot (26) vers l'arrière du plateau supérieur (3) et en la bloquant en position haute avec l'organe de blocage (11), - positionner le couteau (6) sur l'outillage de montage (5) à l'aide des moyens de positionnement (18), - brider le couteau (6) sur l'outillage de montage (5) à l'aide du moyen de serrage (19), - positionner l'ensemble (outillage de montage (5) - couteau (6)) sur le plateau supérieur (3) de manière à permettre l'affûtage du couteau (6), - fixer les deux moyens de guidage (14) sur le plateau supérieur (3) au travers de la rainure (16) de l'outillage de montage (5) en prenant soin de mettre le côté de ladite rainure (16) opposé à la portion (20) en butée sur son moyen de guidage (14) associé afin de placer le couteau (6) hors du champ d'action de la meule (25), - abaisser la tête de meulage (4) en desserrant l'organe de blocage (11) et en la faisant pivoter autour du premier pivot (26) vers l'avant du plateau supérieur (3) jusqu'à ce que la butée réglable (24) soit en contact avec le dessus dudit plateau supérieur, - régler la distance entre la face inférieure de la meule (25) et le dessus du plateau supérieur (3) en agissant sur la butée réglable (24), - régler le premier angle (α) en agissant sur les moyens de serrage (29) du second support (23), puis en réglant l'inclinaison de la platine (22) en tournant autour du second pivot (27) et enfin bloquer la tête de meulage (4) en position inclinée, - démarrer le moteur (21) et le système de lubrification (35), et commencer un déplacement aller en engagent progressivement sous la meule (23), à l'aide de la poignée (17), l'ensemble (outillage de montage (5) - couteau (6)) jusqu'à ce que la portion (20) de la rainure (16) soit en butée sur son moyen de guidage (14) associé, - commencer le déplacement retour en engageant progressivement sous la meule (23), à l'aide de la poignée (17), l'ensemble (outillage de montage (5) - couteau (6)) jusqu'à ce que la rainure (16) soit en butée sur l'autre moyen de guidage (14), - exécuter des déplacements aller et retour successifs, à l'aide de la poignée (17), dudit ensemble en rapprochant progressivement si nécessaire la tête de meulage (4) du plateau supérieur (3) à l'aide de la butée réglable (24). 9. A method of sharpening knives (6) implementing the sharpening machine (1) according to any one of the preceding claims, characterized in that it comprises successively the following steps: raising the grinding head (4) by pivoting it around the first pivot (26) toward the rear of the upper plate (3) and blocking it in the up position with the locking member (11), - position the knife (6) on the mounting tool (5) using the positioning means (18), - clamping the knife (6) on the mounting tool (5) using the clamping means (19), - position the assembly (mounting tool (5) - knife (6)) on the upper plate (3) so as to allow sharpening of the knife (6), - fix the two guide means (14) on the upper plate (3) through the groove (16) of the mounting tool (5) taking care to put the side of said groove (16) opposite the portion (20) abutting on its associated guiding means (14) to place the knife (6) out of the field of action of the grinding wheel (25), - lowering the grinding head (4) by loosening the locking member (11) and pivoting it around the first pivot (26) towards the front of the upper plate (3) until the adjustable stop ( 24) in contact with the top of said upper plate, - adjust the distance between the lower face of the grinding wheel (25) and the top of the upper plate (3) by acting on the adjustable stop (24), - adjust the first angle (α) by acting on the clamping means (29) of the second support (23), then adjusting the inclination of the plate (22) by rotating around the second pivot (27) and finally locking the grinding head (4) in an inclined position, - start the engine (21) and the lubrication system (35), and start a movement to engage progressively under the grinding wheel (23), using the handle (17), the assembly (mounting tool ( 5) - knife (6)) until the portion (20) of the groove (16) abuts on its associated guide means (14), - start the return movement by progressively engaging the grinding wheel (23), using the handle (17), the assembly (mounting tool (5) - knife (6)) until the groove ( 16) abuts on the other guide means (14), - Performing successive round trips, using the handle (17), said assembly gradually bringing closer if necessary the grinding head (4) of the upper plate (3) with the adjustable stop (24). ).
EP08104685A 2007-07-10 2008-07-09 Grinding machine Withdrawn EP2014411A1 (en)

Applications Claiming Priority (1)

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FR0704990A FR2918593B1 (en) 2007-07-10 2007-07-10 SHARPENING MACHINE

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EP2014411A1 true EP2014411A1 (en) 2009-01-14

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
NL2003670C2 (en) * 2009-10-19 2011-04-20 Benedict Tech Handelsonderneming KNIFE GRINDING MACHINE.
CN103084937A (en) * 2013-02-04 2013-05-08 牛祥永 Knife grinder for grinding formed blade
CN105904288A (en) * 2016-05-12 2016-08-31 成都欣思瑞特工具有限公司 Tool grinding repairing device
CN112356247A (en) * 2020-11-02 2021-02-12 济南恒博新型建材开发有限公司 Aerated concrete block cutting unit
CN113246185A (en) * 2021-05-11 2021-08-13 汪文杰 Hot melt adhesive preparation and processing system and preparation and processing method

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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 (en) * 1985-03-29 1986-10-08 Merz Metall- Und Kunststoffverarbeitungs Gmbh Device for sharpening curved knives that are essentially circular concave
DE3721870A1 (en) * 1987-07-02 1989-01-12 Claas Saulgau Gmbh Grinding device for cutters for self-loading forage boxes
EP0467383A1 (en) 1990-07-20 1992-01-22 FEIFFER MASCHINEN- UND ANLAGENBAU GmbH Grinding device
FR2712222A1 (en) * 1993-11-10 1995-05-19 Pillet Andre Multi-purpose blade sharpener, esp. for butchery tools

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* 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 (en) * 1985-03-29 1986-10-08 Merz Metall- Und Kunststoffverarbeitungs Gmbh Device for sharpening curved knives that are essentially circular concave
DE3721870A1 (en) * 1987-07-02 1989-01-12 Claas Saulgau Gmbh Grinding device for cutters for self-loading forage boxes
EP0467383A1 (en) 1990-07-20 1992-01-22 FEIFFER MASCHINEN- UND ANLAGENBAU GmbH Grinding device
FR2712222A1 (en) * 1993-11-10 1995-05-19 Pillet Andre Multi-purpose blade sharpener, esp. for butchery tools

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2003670C2 (en) * 2009-10-19 2011-04-20 Benedict Tech Handelsonderneming KNIFE GRINDING MACHINE.
EP2311602A1 (en) * 2009-10-19 2011-04-20 Benedict Technische Handelsonderneming Cutting blade sharpening device
CN103084937A (en) * 2013-02-04 2013-05-08 牛祥永 Knife grinder for grinding formed blade
CN103084937B (en) * 2013-02-04 2015-07-01 牛祥永 Knife grinder for grinding formed blade
CN105904288A (en) * 2016-05-12 2016-08-31 成都欣思瑞特工具有限公司 Tool grinding repairing device
CN105904288B (en) * 2016-05-12 2018-01-19 成都欣思瑞特工具有限公司 A kind of tool grinding prosthetic device
CN112356247A (en) * 2020-11-02 2021-02-12 济南恒博新型建材开发有限公司 Aerated concrete block cutting unit
CN113246185A (en) * 2021-05-11 2021-08-13 汪文杰 Hot melt adhesive preparation and processing system and preparation and processing method
CN113246185B (en) * 2021-05-11 2022-09-13 上海惊叹化学有限公司 Hot melt adhesive preparation and processing system and preparation and processing method

Also Published As

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

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