EP4104969A1 - Appareil de rectification pour une machine à trancher pourvu de protection contre le contacte lors du montage - Google Patents

Appareil de rectification pour une machine à trancher pourvu de protection contre le contacte lors du montage Download PDF

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Publication number
EP4104969A1
EP4104969A1 EP21179802.0A EP21179802A EP4104969A1 EP 4104969 A1 EP4104969 A1 EP 4104969A1 EP 21179802 A EP21179802 A EP 21179802A EP 4104969 A1 EP4104969 A1 EP 4104969A1
Authority
EP
European Patent Office
Prior art keywords
stop plate
grinding device
knife
circular
protection 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.)
Pending
Application number
EP21179802.0A
Other languages
German (de)
English (en)
Inventor
Marius OBERLE
Markus Oesterle
Matthias Kröner
Andreas GÖZ
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.)
Bizerba SE and Co KG
Original Assignee
Bizerba SE 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 Bizerba SE and Co KG filed Critical Bizerba SE and Co KG
Priority to EP21179802.0A priority Critical patent/EP4104969A1/fr
Priority to US17/837,113 priority patent/US11738477B2/en
Publication of EP4104969A1 publication Critical patent/EP4104969A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/12—Means for treating work or cutting member to facilitate cutting by sharpening the cutting member
    • 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
    • B24B3/368—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades installed as an accessory on another machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/46—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of disc blades
    • B24B3/463—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of disc blades of slicing machine disc blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/22—Safety devices specially adapted for cutting machines
    • B26D7/225—Safety devices specially adapted for cutting machines for food slicers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers

Definitions

  • the invention relates to a grinding device for a disc cutting machine for cutting off slices from, in particular, strand-shaped material to be cut, preferably food, the grinding device comprising a grinding stone for sharpening a rotating and/or revolving circular blade of the disc cutting machine and a whetstone for deburring the circular blade, the grinding device having a Has handle to move the sharpening stone and / or the sharpening stone to the circular knife.
  • the invention also relates to a slicing system with such a grinding device and a slicing machine.
  • the slicing machine includes a sharpener and an associated knife guard assembly having a guard positioned to protect the edge of the knife when the sharpener is in its standby or non-sharpening state.
  • part of the knife protection ring is opened so that the sharpening device can touch the cutting edge of the knife. Opening the knife protection ring requires at least one joint in the knife protection ring.
  • the cutting machine is comparatively complex and also designed to be unhygienic in use.
  • the DE 103 00 972 A1 discloses a grinding device for rotationally driven circular knives of cutting devices with a grinding element that can be rotated about an axis of the respective circular knife.
  • the sharpening device comprises an adjusting means, which can be moved parallel to the axis of the sharpening element, for determining the relative position between the circular blade and the sharpening element and which interacts with the housing of the circular blade or with a stop formed on its housing.
  • the sharpening device comprises a sharpening element with a sharpening surface that can be attached to the cutting edge of the circular knife for sharpening the circular knife, and a honing element with a honing surface that can be attached to the opposite side of the cutting edge of the circular knife for honing the burr created during the grinding process.
  • the sharpening device also includes a support that can be placed on the edge of the carriage of a cutting machine in such a way that the sharpening device rests at least partially on the product support of the carriage, with the grinding surface being able to come into contact with the cutting edge of the circular knife by moving the carriage.
  • the sharpening mechanism includes a rotating sharpening element and a deburring element, with the sharpening element and deburring element being independently mounted.
  • the sharpening mechanism is removably mounted in a pocket formed on a lower portion of the food product table facing the knife.
  • the grinding devices known from the prior art offer comparatively little protection for a user from cut injuries on the respective circular blade of the disc cutting machine, in particular when they are assembled and disassembled.
  • a cutting machine in particular, be it a vertical cutting machine or an oblique cutting machine, always comprises a cutting blade with a cutting edge that has to be sharpened regularly.
  • the cutting blade is used to cut off the material to be cut and, if the cutting machine is operated improperly, poses a risk of injury for the user, for example if he touches the cutting edge of the cutting blade with his fingers.
  • the cutting knife can be covered by a mostly C-shaped knife protection ring.
  • the slicing machine also includes a stop plate with which the slice thickness is adjusted. If the stop plate is in the zero position, the slice thickness that can be produced is Omm and therefore no cutting takes place.
  • the stop plate covers the part of the cutting edge of the cutting blade that is not covered by the blade protection ring. If the stop plate is opened, i.e. moved away from the zero position, the cutting machine can cut the material to be cut. The cutting edge is then freely accessible in the area of the stop plate. A user who improperly runs a finger over the stop plate in the direction of the cutting blade could touch the cutting edge and injure himself. Therefore, the cutting machine is in a safe state with the stopper plate closed, and in a cutting state with the stopper plate open.
  • the cutting edge of the cutting blade must be resharpened regularly after a certain period of operation.
  • a grinder is installed on the cutting machine to sharpen the cutting blade.
  • the sharpening apparatus comprises a sharpening stone which, in a first step, touches the cutting edge from one side and sharpens the cutting edge.
  • the sharpening apparatus comprises a whetstone which, in a second step, touches the cutting edge from the other side and sharpens the knife, e.g. B. removed a burr.
  • the sharpening device should be able to be attached to the machine when it is in a safe condition, ie when the cutting edge of the cutting blade is completely covered.
  • the cutting blade In order to carry out the sharpening process, the cutting blade must be opened at one point in order to be able to touch the cutting edge with the whetstone or whetstone.
  • the stop plate has usually had to be opened. This will expose the cutting edge of the knife outside of the C-shaped knife guard ring. Then the grinder is attached to the stop plate. with The knife can be sharpened with a sharpening stone and whetstone. The grinder is removed and the knife is open again. Then the stop plate must be closed. This means that in the meantime there is an open stop plate with a free cutting edge and the corresponding risk of injury for the operating personnel.
  • the present invention is based on the task - viewed in detail as relatively demanding - of providing a grinding device for hygienic grinding of a circular blade with structurally simple and space-saving, reliable protection of a user from cut injuries on the circular blade of the disc cutting machine, in particular during assembly and disassembly of the grinder. It is also the object of the invention to provide a slicing system with such a grinding device and a slicing machine.
  • a generic grinding device of the type defined at the outset is given a holder for attachment to a stop plate of the disk cutting machine with an insertion device for positively locking insertion into the stop plate, the holder having a U -shaped plate holder with a gap for inserting the stop plate into the gap when the grinding device is pushed onto the stop plate, that there is a holder for the grinding device for positively engaging around one end of a knife protection ring of the disc cutting machine, with the holder being designed for this purpose, the end to embrace the knife protection ring when the stop plate in the direction of an axis of rotation of the circular knife has at least a predetermined distance from the circular knife, and not to grasp the end of the knife protection ring if the distance between the stop plate and the knife protection ring in the direction of the axis of rotation of the circular knife is smaller than the predetermined distance, and that the sharpening device has a frame for covering at least one Having
  • the grinding device according to the invention can be attached to the stop plate by means of the holder or removed from the stop plate when the distance between the stop plate and the knife protection ring in the direction of the axis of rotation of the circular knife is smaller than the predetermined distance, i.e. in particular when the stop plate is in a closed position.
  • the circular knife covered by the stop plate and the knife protection ring cannot be touched when the stop plate is in the closed position, so there is no risk of injury.
  • the grinding device can advantageously already be attached to the stop plate when it is still in the closed position and the disc cutting machine is still safe from injury.
  • the grinding device in order to ensure the safety of the user during the grinding, the grinding device is already mounted on the disk cutting machine when the disk cutting machine is in this safe state, that is, when the cutting blade is completely covered.
  • the stop plate covers in particular a section of the cutting edge of the cutting blade that is not covered by the blade protection ring.
  • the stop plate is moved out of the closed position for grinding the circular blade, so that the stop plate is at least a predetermined distance from the circular blade in the direction of an axis of rotation of the circular blade, i.e. the stop plate is in is in an open position.
  • the grinder is thereby brought to the now accessible cutting edge of the circular blade.
  • the end of the knife protection ring is inserted in the direction of the axis of rotation of the circular knife into the receptacle, which in the open position of the stop plate encompasses the end of the knife protection ring.
  • the receptacle has in particular a guide for inserting the knife protection ring.
  • the grinding device When the stop plate is open, the grinding device according to the invention interacts with the knife protection ring. Together with the slide-in device of the grinder that is pushed into the stop plate, the holder prevents the grinder from being removed when the stop plate is open and in particular while the circular blade is being sharpened, which would result in the risk of cutting injuries to the user. In particular, when the stop plate is open, the grinder cannot be removed either in a direction along the stop plate or perpendicular to this direction. By means of the holder of the sharpening device for the knife protection ring, the knife protection ring fixes the sharpening device when the stop plate is open, but not when the stop plate is closed.
  • the grinder according to the invention cannot be separated from the stop plate when the stop plate is open.
  • the disc cutting machine cannot be brought into a cutting state by detaching the grinder.
  • the grinder covers in particular a cutting edge of the circular blade with its frame in a section in which the cutting edge is not covered by the blade protection ring.
  • the grinder prevents the user from touching the circular blade even though the stop plate is in an open position.
  • the cutting blade is made accessible in a safe manner in a section of the cutting blade for the sharpening stone to contact the cutting edge.
  • the slicing machine can in particular be designed as a vertical slicing machine or as an inclined slicing machine.
  • the knife protection ring is preferably C-shaped in order to cover the circular knife in a defined peripheral area.
  • the grinding stone of the grinder touches the cutting edge from one side in a first step and sharpens the cutting edge.
  • the honing stone of the sharpener touches the cutting edge from the other side and pulls off the knife, removing a burr, for example.
  • the installation position is used in particular for the assembly or disassembly of the grinding device, while the working position is intended for the grinding of the circular knife by the grinding device.
  • the scope of the present invention also includes a slicing system with a slicing machine for cutting off slices from material to be cut, in particular in the form of strands, preferably food, with a machine housing which holds a drive motor and a rotating and/or revolving circular blade driven by the drive motor, with a cutting edge of the circular blade is covered in a first section by a blade protection ring, with the slicing machine comprising a stop plate and a slidably arranged carriage, via which the material to be cut is fed to the circular blade, with the stop plate in the direction of the axis of rotation of the circular knife can be moved, the disc cutting system having a grinding device for grinding the circular knife, the grinding device having a grinding stone for sharpening the circular knife and a honing stone for deburring the circular knife, the grinding device having a handle to move the grinding stone and/or the honing stone to the to move the circular blade.
  • this disc cutting system is characterized in that the grinding device has a holder for attachment to the stop plate with an insertion device for positive insertion into the stop plate, the holder having a plate holder, in particular a U-shaped plate holder, with a gap for inserting the stop plate into the gap when pushing the sharpening device onto the stop plate, that there is a receptacle for the sharpening device for positively gripping one end of the knife protection ring, the receptacle being designed to grip the end of the knife protection ring when the stop plate has a predetermined distance in the direction of an axis of rotation of the circular blade from the circular blade and the receptacle is designed not to encompass the end of the blade protection ring when the distance between the stop plate and the blade protection ring in the direction of the axis of rotation of the circular blade is less than the predetermined distance and that the sharpening device has a frame for covering a second section of a cutting edge of the circular blade and for pivoting the sharpening device from an installation
  • the grinding device covers the second partial section of the circular blade in particular when the stop plate is in the aforementioned open or open position.
  • the circular knife can be sharpened, with the user being protected from cutting injuries caused by touching the circular knife by the sharpening device and the knife protection ring.
  • the grinder no comparatively complex components such as joints have to be used, so that the use of the Grinder can also be done in a hygienic way.
  • a class of advantageous embodiments of the grinding device according to the invention is characterized in that the insertion device has at least one lug, preferably two lugs, for engaging in an associated recess of the stop plate, with the at least one lug being designed in particular to engage in a recess on a rear side of the engage the stop plate, and wherein the rear side of the stop plate faces away from a carriage of the slicing machine in the direction of the axis of rotation of the circular blade.
  • the lugs are fixed by being pushed into the indentations, with the indentations forming positive-locking receptacles for the lugs. After being pushed into the indentations, the lugs prevent the grinder from shifting along the stop plate.
  • the receptacle is designed as a recess for inserting the end of the knife protection ring.
  • the holder encompasses the end of the knife protection ring and thus ensures that the grinding device is held securely at the end of the knife protection ring.
  • the receptacle is designed to save material.
  • the frame of the sharpening device includes cover plates for covering the cutting edge of the circular blade, the sharpening stone and the honing stone in particular are arranged between the cover plates.
  • the cover plates protect a user from being cut by the cutting edge due to their expansion during the movement of the stop plate.
  • the cover plates, the sharpening stone and the whetstone are arranged in the circumferential direction of the circular knife, with the sharpening stone and the sharpening stone being positioned between the cover plates.
  • Further configurations of the grinder are characterized by a locking mechanism for locking the grinder in the working position and/or in the installation position. As a result, the grinding device is held in the respective position in a stable but manually detachable manner.
  • the locking mechanism is formed, for example, by a locking pin and elastic elements on the grinder.
  • a preferred variant of the grinder is characterized by a pivoting mechanism for pivoting the grinder from the working position to the installation position.
  • the pivoting mechanism preferably has a guide groove and/or a guide rail for guiding the grinding device during pivoting and/or a rotary pin about which the grinding device can be pivoted in whole or in part.
  • the aforementioned latching pin particularly preferably engages in the guide groove and/or is guided along the guide rail, as a result of which the grinder can be pivoted between the latching positions from the working position into the installation position.
  • a further development of this variant of the invention is characterized by a stop for the pivoting mechanism.
  • the stop brakes the pivoting in a stable manner and, as a buffer, protects the grinder from mechanical damage caused by the pivoting.
  • the holder for fastening the grinding device to a stop plate of the disc cutting machine has a threaded spindle for Pinching the stop plate has.
  • the stop plate can be connected to the grinder in a stable but manually detachable manner.
  • the lead screw is located on one side of the gap of the U-shaped platen to press the stop plate against the opposite side of the U-shaped platen, thereby clamping the grinder to the stop plate.
  • the push-in device is formed on the inside of the gap of the plate holder.
  • the stop plate in particular, is guided along the inside of the gap when it is pushed into the gap.
  • the insertion device is designed in particular in the form of the aforementioned lugs on the inside of the gap. While the plate holder grips the stop plate during insertion in order to prevent the grinder from shifting in the direction of the axis of rotation of the circular blade, the insertion device on the inside of the gap prevents the grinder from shifting along the stop plate while the stop plate is being pushed in.
  • the insertion device has a tapering shape, in particular a U-shape, in one direction of insertion. As a result, the insertion device is centered when it is inserted into the receptacle of the stop plate, which makes insertion easier.
  • the handle for moving the grindstone and/or the whetstone to the circular blade of the disc cutting machine is designed as a wheel of the frame of the grinder, the wheel being designed to rotate the grindstone and /or to move the whetstone towards the circular knife so that they can be arranged on the circular knife and/or to move away from the circular knife.
  • the wheel and a rotating mechanism connected to it the adjustment of the sharpening stone and/or the sharpening stone can be effected in a particularly space-saving manner.
  • the stop plate of the slicing machine has at least one indentation, in particular two indentations, for receiving the insertion device of the grinding device in a form-fitting manner, with the indentation preferably being formed on a rear side of the stop plate, which is in the Direction of the axis of rotation of the circular blade is turned away from a carriage of the disc cutting machine.
  • the indentations serve to positively accommodate associated bulges of the insertion device, in particular in the form of lugs, in order to prevent the grinder from being displaced along the stop plate.
  • a further embodiment of the disc cutting system is characterized in that the frame has such a width in the direction of the axis of rotation of the circular blade that the frame always covers the cutting edge of the circular blade during the movement of the stop plate. As a result, the user is always protected from being cut by the circular blade while the stop plate is being moved from the closed position to the open position.
  • the stop plate of the slicing machine can be moved to a zero position in which the stop plate and the knife protection ring together completely cover the cutting edge of the circular knife so that the circular knife does not cut the material to be cut.
  • the stop plate In the zero position, the stop plate is aligned with the circular knife.
  • the stop plate prevents the material to be cut from being cut and protects a user from cut injuries.
  • the grinder In the zero position, the grinder can be safely mounted on the stop plate.
  • the zero position corresponds to the closed position of the stop plate.
  • the present invention relates to a grinding device for a slicing machine for cutting off slices from material to be cut, in particular in the form of strands, preferably food.
  • the Figures 1a and 1b show isometric views of a slicing machine configured as an inclined cutting machine or as a vertical cutting machine.
  • the Figures 2a to 2c show a grinder according to the invention in an installation position and a working position on the bevel cutting machine.
  • the Figures 3a to 4d show different views of the grinder.
  • the figure 5 shows a stop plate of the disc cutting machine with indentations for receiving lugs of the grinder.
  • FIG. 1a shows a disc cutting machine 10' designed as an oblique cutting machine, to which a grinding device 22 according to the invention (cf. Figure 2a ) can be attached.
  • the slicing machine 10 ′ comprises a cutting device 11 in a machine housing 12 .
  • the cutting device 11 has a rotatably mounted circular knife 13 .
  • a cutting edge 14 of the circular blade 13 is covered by a blade protection ring 15 in a first section.
  • the slicing machine 10 ′ also includes a stop plate 16 and a slidably arranged carriage 17 , via which a material to be cut (not shown) is fed to the circular blade 13 .
  • the stop plate 16 is in the direction of the axis of rotation RA (see Figure 2a ) of the circular blade 13 can be moved.
  • the stop plate 16 is in an open position 18 at a distance from the circular blade 13 in the direction of the axis of rotation RA of the circular blade 13.
  • the cutting edge 14 of the circular blade 13 is freely accessible.
  • a blade cover 19 serves to protect the circular blade 13 along its inner circumference.
  • the knife protection ring 15 has an end 20 designed as a projection, which fits into a receptacle 43 of a grinding device 22 (see FIG Figure 4a ) is introduced.
  • Fig. 1a also elongated recesses 53a , 53b on the front side of the stop plate 16 facing the carriage 17 for associated bulges 52a , 52b of the grinding device 22 (see FIG Figure 4c ).
  • the elongated recesses 53a, 53b receive the bulges 52a, 52b, the recesses do not form a positive fit with the bulges.
  • the bulges 52a, 52b may be circular in cross section, as in the embodiment of FIG Figure 4c is shown.
  • a diagonal cutting machine 10 ' according to Fig. 1a is in Fig. 1b designed as a vertical cutting machine disc cutting machine 10 "with the carriage 17, the stop plate 16 and the rotatably mounted Circular knife 13 shown, on which the grinder 22 can also be mounted.
  • the vertical cutting machine 10" is controlled via a dashboard 21 .
  • the grinding device 22 which is in a Figure 2a Installation position 23 shown via a bracket 24 on the stop plate 16 of a slicing machine 10 ', as shown in Fig. 1a shown, in the open position (cf. Fig. 1a ) is mounted.
  • the grinding device 22 and the slicing machine 10' together form a slicing system 25.
  • the installation position 23 can be recognized in particular by the fact that a housing 26 to protect the operating mechanism (not shown) of the grinding device 22 is pivoted away from the circular blade 13, while this housing 26 is in a working position (see FIG Figure 2c ) is pivoted towards the circular knife 13 .
  • a latching mechanism 27 with a latching pin 28 latches the grinder 22 in the installation position 23.
  • the latching mechanism 27 also serves to position the grinder 22 in a working position (see FIG Figure 2c ) to lock.
  • Pivoting from the working position to the installation position 23 takes place via a pivoting mechanism 30.
  • the pivoting mechanism 30 has a guide 31 for guiding the grinding device 22 during pivoting.
  • the housing 26 pivots about a pivot pin 32 of the pivot mechanism.
  • the pivoting movement of the grinder 22 in the direction of the installation position 23 is stopped by a stop 33 as a buffer.
  • the grinder 22 has a handle 34 for moving a grindstone 39 and a whetstone 40 (see Fig Figure 4a ) to the circular knife 13 of the disc cutting machine 10.
  • the handle 34 is designed as a wheel 35 which, when rotated, moves the sharpening stone 39 and the sharpening stone 40 to the circular knife 13 or away from the circular knife 13.
  • That Sander 22 includes a frame 36 that supports the described components.
  • Figure 2b shows for comparison with Fig. 1a the inclined cutting machine 10 'with the carriage 17, the stop plate 16 and the circular blade 13, wherein now the grinder 22 is mounted in the installation position 23 on the stop plate 16.
  • the grinding device 22 assumes a working position 38 , which Figure 2c is shown.
  • the housing 26 is compared to the installation position 23 (see Figure 2a ) pivoted towards the circular blade 13 and spaced from the stop 33.
  • the housing 26 has been pivoted about the rotary pin 32 from the installation position 23 into the working position 38 .
  • the carriage 17 cannot be moved over the entire carriage stroke, since otherwise it could collide with the grinder 22 during its movement. In the carriage position shown, the carriage 17 covers a lower part of the cutting edge 14 of the circular blade 13 . A part of the circular blade 13 is also covered by the carriage 17 to protect a user.
  • To lock the grinder 22 in the installation position 23 serves a second locking receptacle 29b.
  • Figure 3a shows a side view of the grinder 22 in the installation position 23.
  • the housing 26 of the grinder 22 rests against the stop 33.
  • the latching mechanism 27 with the latching pin 28 latches the grinder 22 in the installation position 23.
  • the pivoting mechanism 30 with the guide 31 and the rotary pin 32 is also shown.
  • the first latching receptacle 29a is also shown.
  • Figure 3b shows a side view of the grinder 22 in the working position 38.
  • the housing 26 is pivoted about the rotary pin 32 along the guide 31 and spaced from the stop 33. Also shown is the second latching receptacle 29b.
  • the grinder 22 has the grindstone 39 for sharpening the circular blade 13 (see Figure 2a ) and the sharpening stone 40 for deburring the circular knife 13, which in Figure 4a and Figure 4b are shown.
  • the sharpening stone 39 and the sharpening stone 40 are moved to the circular knife 13 by means of the wheel 35 (see Fig Figure 2a ) emotional.
  • a threaded spindle 41 for clamping the stop plate 16 is located on the holder 24 (see Figure 2b ).
  • the frame 36 of the grinder 22 includes cover plates 42a , 42b for covering the circular knife 13.
  • the grindstone 39 and the honing stone 40 are arranged in the circumferential direction of the circular knife 13 between such cover plates 42a, 42b of the frame 36.
  • the receptacle 43 of the grinding device 22 is designed to hold the end 20 of the knife protection ring 15, which is designed as a projection (see FIG Fig. 1a ) to grip in a form-fitting manner when the stop plate 16 is in the direction of the axis of rotation RA of the circular blade 13 (see Fig. 1b ) has a predetermined distance from the circular blade 13.
  • the receptacle 43 does not encompass the end 20 of the knife protection ring 15 when the distance between the stop plate 16 and the knife protection ring 15 in the direction of the axis of rotation RA of the circular knife 13 is smaller than the predetermined distance.
  • the receptacle 43 is designed as a recess 44 in the grinding device 22 for inserting the end 20 of the knife protection ring 15 .
  • the bracket 24 for attaching the grinder 22 to the stop plate 16 has an in Figure 4c shown, in particular U-shaped, plate holder 45 with a gap 46 for inserting the stop plate 16 into the gap 46 when sliding the grinder 22 onto the stop plate 16.
  • the threaded spindle 41 is located at the gap 46 of the plate holder 45.
  • Bulges 52a , 52b of the holder 24 engage in associated recesses 53a, 53b on the front of the stop plate 16 (see Fig. 1a ) a.
  • the holder 24 of the grinding device 22 also has an insertion device 47 for positive insertion into the stop plate 16 .
  • the slide-in device 47 comprises two lugs 48a , 48b , which fit into associated depressions on a rear side of the stop plate 16 (see FIG figure 5 ) intervene in particular in a form-fitting manner.
  • the insertion device 47 with the lugs 48a, 48b is formed on an inner side 49 of the gap 46 of the plate holder 45, on which the stop plate 16 is arranged when the grinding device 22 is in the mounted state.
  • the lugs 48a, 48b have a U-shape tapering in the direction of insertion ER of the insertion device 47, as shown in FIG Figure 4d is shown in detail.
  • the illustrated depressions 50a , 50b of the stop plate 16 take the lugs 48a, 48b of the slide-in device (see 3c ) positively.
  • the recesses 50a, 50b are formed on a rear surface 51 of the stopper plate 16, which is in the direction of the axis of rotation RA of the circular blade 13 (see Figure 2a ) faces away from the carriage 17 of the slicing machine 10'.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Food Science & Technology (AREA)
  • Food-Manufacturing Devices (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP21179802.0A 2021-06-16 2021-06-16 Appareil de rectification pour une machine à trancher pourvu de protection contre le contacte lors du montage Pending EP4104969A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21179802.0A EP4104969A1 (fr) 2021-06-16 2021-06-16 Appareil de rectification pour une machine à trancher pourvu de protection contre le contacte lors du montage
US17/837,113 US11738477B2 (en) 2021-06-16 2022-06-10 Whetting device for a slicer comprising a guard preventing accidental contact during mounting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21179802.0A EP4104969A1 (fr) 2021-06-16 2021-06-16 Appareil de rectification pour une machine à trancher pourvu de protection contre le contacte lors du montage

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EP4104969A1 true EP4104969A1 (fr) 2022-12-21

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB457379A (en) * 1936-07-28 1936-11-26 Alfred Vivian Griffiths Improvements in or relating to sharpening devices for slicing machines employing circular knives
DE19907028A1 (de) 1999-01-25 2000-07-27 Gebr Graef Gmbh & Co Kg Schleifvorrichtung für eine Schneidemaschine für Lebensmittel
DE10300972A1 (de) 2003-01-10 2004-07-22 Yanar, Cozfin Schleifvorrichtung für rotierend angetriebene Kreismesser
US7134937B1 (en) 2005-12-19 2006-11-14 Premark Feg L.L.C. Food product slicer with knife sharpener and associated knife guard
EP1922189B1 (fr) 2005-08-26 2011-11-23 Premark FEG L.L.C. Aiguisoir supporte par la surface de reception d'un trancheur d'aliments
US20140127982A1 (en) * 2011-06-21 2014-05-08 Slayer Blades S.R.L. Universal sharpening device for slicing machines with circular blade
WO2020185153A1 (fr) * 2019-03-13 2020-09-17 Tore Eklund Outils, appareils et procédés d'affûtage de bords tranchants

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR741648A (fr) * 1933-02-16
GB178913A (en) * 1921-01-21 1922-04-21 George Archie Smith Improvements in or relating to means for sharpening the knives of food slicing machines
US2978848A (en) * 1957-07-17 1961-04-11 Armour & Co Grinder for involute bacon knife
US3986304A (en) * 1975-12-02 1976-10-19 Hobart Corporation Sharpener for commodity slicing machine
GB9815205D0 (en) * 1998-07-15 1998-09-09 Gec Avery Ltd Sharpening agreement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB457379A (en) * 1936-07-28 1936-11-26 Alfred Vivian Griffiths Improvements in or relating to sharpening devices for slicing machines employing circular knives
DE19907028A1 (de) 1999-01-25 2000-07-27 Gebr Graef Gmbh & Co Kg Schleifvorrichtung für eine Schneidemaschine für Lebensmittel
DE10300972A1 (de) 2003-01-10 2004-07-22 Yanar, Cozfin Schleifvorrichtung für rotierend angetriebene Kreismesser
EP1922189B1 (fr) 2005-08-26 2011-11-23 Premark FEG L.L.C. Aiguisoir supporte par la surface de reception d'un trancheur d'aliments
US7134937B1 (en) 2005-12-19 2006-11-14 Premark Feg L.L.C. Food product slicer with knife sharpener and associated knife guard
US20140127982A1 (en) * 2011-06-21 2014-05-08 Slayer Blades S.R.L. Universal sharpening device for slicing machines with circular blade
WO2020185153A1 (fr) * 2019-03-13 2020-09-17 Tore Eklund Outils, appareils et procédés d'affûtage de bords tranchants

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US20220402157A1 (en) 2022-12-22
US11738477B2 (en) 2023-08-29

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