EP4260942A1 - Couteau de cutter optimisé en termes de montage, de vibration et d'hygiène - Google Patents

Couteau de cutter optimisé en termes de montage, de vibration et d'hygiène Download PDF

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Publication number
EP4260942A1
EP4260942A1 EP23164872.6A EP23164872A EP4260942A1 EP 4260942 A1 EP4260942 A1 EP 4260942A1 EP 23164872 A EP23164872 A EP 23164872A EP 4260942 A1 EP4260942 A1 EP 4260942A1
Authority
EP
European Patent Office
Prior art keywords
knife
disc body
face
knife base
plastic
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
EP23164872.6A
Other languages
German (de)
English (en)
Inventor
Romano Förster
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.)
ASTOR Schneidwerkzeuge GmbH
Original Assignee
ASTOR Schneidwerkzeuge GmbH
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 ASTOR Schneidwerkzeuge GmbH filed Critical ASTOR Schneidwerkzeuge GmbH
Publication of EP4260942A1 publication Critical patent/EP4260942A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/065—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within rotatable bowls, e.g. meat cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C18/20—Sickle-shaped knives

Definitions

  • the invention relates to a cutter knife for a shredding machine or a mixer. Furthermore, the invention relates to a cutter head comprising several cutter knives with several cutter knife disks.
  • Cutter knives in the sense of the invention are used in shredding machines or mixers. These machines are used to chop and/or mix food, especially meat, and are called cutters.
  • Meat cutters are used in meat processing to mix and chop meat products, especially in sausage production.
  • Such meat cutters usually have a horizontally rotating bowl in which a rotating cutter head with several cutter knives is arranged. The shredding or mixing is carried out by the very quickly rotating cutter knives.
  • the bowl rotates about an axis that is perpendicular to the axis of rotation of the cutter head. By rotating the bowl in the working area of the cutter head, the material to be processed is fed to the cutter head.
  • the publication WO 2017 089 573 A1 discloses a traction sheave for a cutter, to which at least one cutter knife can be attached.
  • the traction sheave has a core, on the circumference of which a plastic casing is arranged.
  • U1 is a cutter with a cutter head, comprising at least one cutter knife.
  • Intermediate disks made of plastic are arranged between the individual cutter knives, pairs of cutter knives and/or cutter knife stacks.
  • the intermediate washers are provided with openings so that they can be placed on the fastening bolts and thus screwed. The individual bolts are stabilized by the intermediate washers.
  • the document DE 39 35 320 A1 describes knife disks made of plastic.
  • the state of the art also includes the publications DE 203 20 843 U1 and DE 101 41 713 B4 , which describe cutter knives.
  • the invention is based on the object of providing a cutter knife in which the disassembly and assembly effort and the risk of injury are reduced. With the cutter knife according to the invention, cleaning the knife base should be easier.
  • the invention is intended to provide a cutter cutter head comprising several cutter knives. Experts also refer to the entire knife package in the cutter machine, which consists of several cutter knives, as a cutter knife head.
  • the starting point of the invention is a cutter knife for a shredding machine or a mixer, the cutter knife comprising a cutting section as a knife blade and a fastening section as a knife base, the knife base being a disk body or a disk body segment of the disk body, each of which has a central opening for receiving a shaft, wherein at least one knife blade or several knife blades is/are arranged on an outer end face of the disk body or the disk body segment.
  • a plastic layer is partially or completely applied to the surface of the knife base of the cutter knife.
  • the respective surface of the knife base is provided with the plastic layer in a form-fitting and material-locking manner.
  • the material connection of the plastic element is created by an adhesive which is arranged to form an adhesive layer between the surface of the knife base and the inner surface of the plastic element.
  • a plastic element is partially or completely arranged on the surface of the knife base of the cutter knife.
  • the plastic element is arranged in a form-fitting manner on the respective surface of the knife base.
  • the plastic element is arranged in a material and/or form-fitting manner on the respective surface of the knife base.
  • the plastic element is arranged, in particular screwed, in a force-fitting manner on the respective surface of the knife base in combination with a positive connection and/or a material connection.
  • the outer end face of the disc body or the disc body segment of the knife base can be polygonal or oval or circular in preferred embodiments relative to a central axis of the knife base.
  • the inner end face of the disc body or the disc body segment of the knife base is polygonal or oval or circular or toothed relative to the central axis of the knife base.
  • the surface of the knife base of the cutter knife is partially or completely coated with a plastic layer.
  • the surface of the knife base is partially or completely provided with a plastic element.
  • a knife base which can have various preferred shape configurations, is taught and claimed with the plastic layer, which can be arranged or designed in various preferred embodiment variants.
  • the plastic elements themselves are taught and claimed in various preferred embodiment variants and the respective arrangement of the plastic elements in the various embodiment variants on the knife base, which can also have the various preferred shape configurations.
  • the Figure 1 shows a narrow side view of a cutter knife 100 attached to a traction sheave 40 (see Figure 2 ), which has two cutter knives 100 lying in one plane, each with a knife blade 10.
  • a cutter knife 100 includes according to the exemplary embodiment in the Figures 1 and 2 , starting from an axial central axis M, the two radially extending knife blades 10 and an associated knife base 20.
  • cutter knives 100 with traction disks 40 arranged one behind the other in the axial direction and each lying between them form a cutter knife head in the assembled state.
  • the knife blade 10 protrudes radially from the knife base 20 and lies in the plane of the knife base 20. In a pair of cutter knives, the knife blades 10 are diametrically opposed to one another, with a knife base 20 usually being assigned to a knife blade 10.
  • Figure 1 shows, viewed from left to right, receiving elements 421, 422 and a traction sheave 40, to which the cutter knife 100 is connected, the cutter knife 100 being clamped between the left and right traction sheaves 40 in the area of the knife base 20 (not shown) in the final assembled state .
  • One of the traction sheaves 40 for example the right traction sheave 40, is connected to a drive, not shown.
  • This traction sheave 40 is technically referred to as a traction sheave, which drives the cutter knife 100 or the cutter cutter head.
  • the cutter knife thus includes the fastening section in the manner of the knife base 20.
  • Each knife blade 10 also has the cutting section shown as a bevel.
  • Figure 2 shows in view A according to Figure 1 Seen from front to back into the blade plane, a traction sheave 40 (left traction sheave in Figure 1 ), behind which a knife foot 20 (according to Figure 1 between two traction sheaves 40) is arranged, which is already located on another (not visible) traction sheave 40 (right traction sheave 40 according to Figure 2 ) is arranged stored, as will be explained below.
  • 6-edge shaft receptacles or, according to the exemplary embodiment, 12-edge shaft receptacles 423 are used for the respective drive shafts, onto which the traction sheaves 40 are pushed axially.
  • the traction sheaves 40 carry the cutter knives 100 mounted on them, which are axially secured with a predetermined clamping force.
  • the cutter knives 100 rotate at up to 6000 rpm with cutting speeds at the knife tip of up to 160 m/s. Due to the forces prevailing there, the cutter knives 100 swing open in the area of the measuring base 20, even though they rest flush against the traction sheave 40.
  • the radial positioning of the cutter knives 100 takes place in a known manner via receiving elements 421, 422, which are designed as receiving bolts.
  • receiving elements 421, 422, which are designed as receiving bolts are arranged irreversibly in the exemplary embodiment, as will be explained in more detail below.
  • the axial length of the protruding part of the locating bolts corresponds to the thickness of the knife base 20 of the cutter knife 100, which is mounted on the locating bolts.
  • the receiving elements can also be arranged reversibly.
  • Design of the cutter knife 100 with a circular knife base 20 The invention therefore relates to the design of a cutter knife 100 with a circular knife base 20 on which at least one knife blade 10 is arranged.
  • the circular knife base 20 is a flange-like disk body which has a central opening 50 in which, in an assembled state, the drive shaft running in the axial direction is arranged, the circular disk body having an inner end face 202 and in the area in which at least one knife head 10 of the Disc body of the knife base 20 does not have an outer end face 203, since in this at least one area of the knife base 20 merges into the knife blade 10, the end faces 202, 203 of the circular disc body of the knife base 20 in the assembled state running parallel to a lateral surface of the drive shaft, the circular disk body is formed between the end faces 202, 203, and between the end faces 202, 203 in the radial direction to the drive shaft, opposite contact surfaces 201 are formed, which are spaced apart from one another by a predetermined amount depending on the disk thickness.
  • the circular disc body further forms at least one through opening 221, 222 running in the axial direction between the inner end face 202 and the outer end face 203 in the circular disc body, which forms an inner surface.
  • the through opening(s) 222 receive(s) the receiving element(s) 422 in the assembled state and the through opening(s) 221 receive(s) the positioning receiving element(s) 421 in the assembled state.
  • Design variant of a circular knife base 20 on which a plastic layer 30 'is arranged A design variant that can be implemented in several embodiment variants relates to: Plastic coating of the circular knife base 20.
  • the circular knife base 20 described is/is partially or completely coated with a plastic layer 30' in various design variants of this design variant.
  • a partial coating is present or is carried out on at least one of the opposite contact surfaces 201 of the circular disk body of the knife base 20.
  • a partial coating is present or is carried out on at least one of the opposite contact surfaces 201 of the circular disk body of the knife foot 20 and the inner end face 202 of the circular disk body of the knife foot 20.
  • the inner surfaces of the through openings 221, 222 running in the axial direction are coated if a plastic coating, that is to say a plastic layer 30 ', is arranged or is formed on at least one of the opposite contact surfaces 201.
  • a complete coating of the circular disk body of the knife base 20 is therefore present when all of the aforementioned surfaces of the circular disk body of the knife base 20 are coated with a plastic layer 30 '.
  • the advantage according to the invention is that in the assembled state no additional sealing elements are required between the individual knife levels of the knife feet 20 of a cutter knife head, since the plastic coating or the plastic layer 30 ', especially if a plastic layer 30 'is present on at least one of the opposite contact surfaces 201, acts as a spacing and sealing element.
  • the plastic layer(s) 30' reduces the vibration of the individual cutter knives 100, so that this measure avoids strong vibrations of the cutter knife head overall. This avoids undesirable crack formation or breakage of the cutter knife 100.
  • Design variant with a plastic element that is arranged on the circular knife base 20 A design variant, which can be implemented in several embodiment variants, thus relates to the arrangement of plastic elements on the circular knife base 20.
  • the circular knife base 20 is/is partially or completely provided with a plastic element in various design variants of this design variant.
  • a plastic element must be designed or is designed in such a way that the plastic element can be placed on the circular knife base 20 or pushed onto the circular knife base 20 in the manner of a circular plastic disc body 30, as will be explained below.
  • a one-sided plastic element is designed as a circular plastic disc body 30 with a central opening 50, the inner diameter of which essentially corresponds to an outer diameter of the drive shaft or has a larger inner diameter than the outer diameter of the drive shaft, the circular plastic -Disc body 30 extends between an outer end face 30C and an inner end face 30B, with the circular plastic disc body 30 forming two opposite contact surfaces 30A.
  • a circular plastic disc body 30 is provided, which forms a circumferential lip adjoining the outer end face 30C of the plastic disc body 30 and protruding from the contact surface 30A in the axial direction from the contact surface 30A of the plastic disc body 30, which is the circular Outer end face 203 of the knife base 20 overlaps.
  • a plastic disc body 30 which forms a circumferential lip adjoining the inner end face 30B of the plastic disc body 30 and protruding from the contact surface 30A in the axial direction from the contact surface 30A of the plastic disc body 30, which forms the circular inner end face 202 of the knife base 20 overlaps.
  • a plastic disc body 30 is provided, which is adjacent to the outer end face 30C and the inner end face 30B of the plastic disc body 30 and protrudes from the contact surface 30A in the axial direction from the contact surface 30A of the plastic disc body 30 circumferential lips which overlap the circular outer end face 203 of the knife foot 20 and the circular inner end face 202 of the knife foot 20.
  • the plastic disc body with its contact surface 30A only covers one of the two contact surfaces 201 of the circular disc body of the knife base 20, with the outer end face 203 of the knife base 20 also being in the area in which no cutter head 10 comes off the cutter base 20, and/or the inner end face 202 of the circular disc body of the cutter base 20 is covered by the plastic disc body 30.
  • the plastic disc body 30 has the corresponding openings so that the plastic disc body 30 does not cover the intended receiving elements 421, 422 of the traction sheave 40, so that the knife base 20 can be plugged onto the receiving elements 421, 422 of the traction sheave 40.
  • the invention in order to further improve the assembly and disassembly or the possibility of a simplified exchange of a cutter knife 100, on which at least one knife blade 10 is arranged, the invention relates to a further design of the cutter knife 100, in which there is no circular knife base 20, but a disc body. Segment is formed, the description being based on a semicircular disk body segment.
  • Design of the cutter knife 100 with a semicircular knife base 20 the invention first defines the shape of the semicircular disc body segment of the knife base 20, which is not explicitly shown.
  • a disc body segment of the knife base 20 in principle A disc body segment is also understood, which forms a quarter circle or a third of a circle as the disc body of the knife base 20.
  • the semicircular knife base 20, which is in Figure 3 is shown and designed as a semicircular disc body segment.
  • the circular "full flange-like" disc body and the semicircular “semi-flange-like” disc body segment differ in that the surfaces created by the segmentation are added, so that a coating or an arrangement of a plastic element must be carried out in a different way.
  • a circular disc body is thus formed in the preferred embodiment from two semicircular disc body segments, the circular disc body being divided into the disc body segments in the radial direction transversely to the drive shaft running in the axial direction, so that each of the semicircular disc body segments next to the inner end face 202 of the semicircular disc body segment and the outer end face 203 of the semicircular disc body segment in the area in which no cutter head 10 extends from the cutter base 20, and the opposite contact surfaces 201 of the disc body segment have two further straight end faces 204, which in the radial direction run and limit the segment in the circumferential direction.
  • Design variant of a semicircular knife base 20 on which a plastic layer 30 'is arranged According to the invention, various embodiment variants arise which relate to the partial or complete coating 30'.
  • a coated cutter knife 100 has a plastic layer 30 ', which is applied in a materially bonded manner to at least one of the opposite contact surfaces 201 of the disk body segment of the knife base 20.
  • a coated cutter knife 100 has a plastic layer 30 ', which is applied in a materially bonded manner to at least one of the opposite contact surfaces 201 of the disk body segment of the knife base 20 and the inner end face 202 of the disk body segment of the knife base 20.
  • a coated cutter knife 100 has a plastic layer 30 ', which is on at least one of the opposite contact surfaces 201 of the disk body segment of the knife base 20 and the outer end face 203 of the disk body segment of the knife base 20, in the area in which there is no knife head 10 from the knife base 20, which is applied in a cohesive manner.
  • a coated cutter knife 100 has a plastic layer 30 ', which is on at least one of the opposite contact surfaces 201 of the disc body segment and the inner end face 202 and the outer end face 203 of the disc body segment, in the area in which there is no cutter head 10 the knife base 20 comes off, which is applied in a cohesive manner.
  • the two further straight end faces 204 of the semicircular disc body segment of the knife base 20 are not yet coated with a plastic layer 30 '.
  • a plastic layer 30' is also applied in a cohesive manner to the two further end faces 204 of the disk body segment, whereby the additional straight end faces 204 of the knife base 20 are also coated or provided with a plastic layer 30'.
  • the inner surfaces of the through openings 221, 222 running in the axial direction in the semicircular disk body segment of the knife base 20 are also coated if there is a coating, that is to say a plastic layer, on at least one of the opposite contact surfaces 201 30 'is present or is being formed.
  • a complete coating of the semicircular disc body segment is therefore present when all of the aforementioned surfaces 201, 202, 203, 204 of the disc body segment of the knife base 20 are coated with a plastic layer 30 '.
  • the replacement of a cutter knife 100 is simplified with a disc body segment as a knife base 20, since the disc body segment is pulled out individually in the radial direction after loosening the clamping elements of the cutter cutter head and, after cleaning and repair, is plugged or inserted back into the corresponding position within the cutter cutter head can be removed without having to remove another cutter knife 100 or the traction sheaves 40.
  • Design variant of a semicircular knife base 20 on which a plastic element is arranged It is understood that a plastic disc body segment 30S must be designed or is designed in such a way that the plastic disc body segment 30S can be placed on the semicircular knife base 20 or pushed onto the knife base 20.
  • the cutter knife 100 is equipped in one embodiment variant with a plastic disc body segment 30S, which rests non-positively and/or positively on at least one of the opposite semicircular contact surfaces 201 of the semicircular disc body segment of the knife base 20 .
  • the cutter knife 100 with a Plastic disc body segment 30S is equipped, which rests non-positively and / or positively on at least one of the opposite contact surfaces 201 of the semicircular disc body segment of the knife base 20 and the inner end face 202 of the semicircular disc body segment of the knife base 20.
  • the cutter knife 100 is equipped with a plastic disc body segment 30S, which is non-positively and/or positively attached to at least one of the opposite contact surfaces 201 of the disc body segment of the knife base 20 and the outer end face 203 of the disc body. Segment of the knife foot 20, in the area in which no knife head 10 extends from the knife foot 20, is present.
  • the cutter knife 100 is equipped with a plastic disc body segment 30S, which is non-positively and/or positively connected to at least one of the opposite contact surfaces 201 of the disc body segment and the inner end face 202 and the outer end face 203 of the Disc body segment, in the area in which no cutter head 10 extends from the cutter base 20, rests.
  • the two further straight end faces 204 of the semicircular disc body segment of the knife base 20 are not yet protected with the plastic disc body segment 30S.
  • the two further end faces 204 of the semicircular disk body segment can also be provided or are preferably provided with the plastic disk body segment 30S.
  • the Figures 4 to 9 each show a representation of the cutter knife 100 according to view B in Figure 3 through the center of the knife base 20 for the basic representation of the design variant "cohesive attachment of a plastic layer 30 'and the design variant positive and / or non-positive arrangement of a plastic element, in the manner of a semicircular plastic disk body segment 30S on the semicircular knife base 20, the end faces 202, 204 of the semicircular knife base 20 and the end faces 30B, 30D of the semicircular plastic disk body segment 30S being shown, with some end faces 202, 204 , especially in the Figures 7 and 8 are covered by the semicircular plastic disc body segment 30S, as will be explained later.
  • the reference number 201 in the figures denotes the free contact surface 201 of the opposite contact surfaces of the knife base 20, which are shown in the other previous ones Figures 1 to 3 is/are not visible or in Figure 3 is only visible as a protruding edge, since the majority of the knife base 20 is coated with plastic or provided with a plastic element according to the invention.
  • the Figure 4 shows a one-sided semicircular plastic layer 30 'according to Figure 3 or a one-sided semicircular plastic disc body segment 30S on one of the contact surfaces 201 of the knife base 20 from the end face with the straight end face 30D, the semicircular inner end face 30B and the straight end face 30D, the straight end faces 204, 204 and the semicircular inner end face 202 of the semicircular knife base 20 is not (yet) provided with the plastic layer 30 'or a plastic disc body segment 30S.
  • the Figure 5 shows a one-sided semicircular plastic layer 30 'according to Figure 3 or a one-sided semicircular plastic disc body segment 30S on the opposite contact surface 201 of the knife base 20 from the end face with the straight end face 30D, the semicircular inner end face 30B and the straight end face 30D, the straight end faces 204, 204 and the semicircular inner end face 202 of the semicircular knife base 20 is not (yet) provided with a plastic layer 30 'or a plastic disc body segment 30S.
  • Figure 6 shows a two-sided semicircular plastic layer 30 'according to Figure 3 or a two-sided semi-circular plastic disc body segment 30S on both opposite contact surfaces 201 of the knife base 20 from the end face 30D, 30B, 30D (straight end face / 30B, semicircular inner end face / 30D straight end face / 30D), the straight end faces 204, 204 and the semicircular inner end face 202 of the semicircular knife base 20 not having a plastic layer 30' or a plastic disc body segment 30S.
  • FIGs 7 and 8 clarify, starting from the Figure 6 , two specific embodiment variants, in which it is provided that with a semicircular knife base 20 according to Figure 7 an open ( Figure 7 ) or closed ( Figure 8 ) shoe-like plastic layer 30 'or an open ( Figure 7 ) or closed ( Figure 8 ) shoe-like plastic disc body segment 30S is formed or arranged.
  • FIG 7 a so-called open shoe-like plastic layer 30' is shown, in which the semicircular inner end face 202 of the semicircular knife base 20 is not (yet) provided with a plastic layer 30' or a plastic disc body segment 30S.
  • Such an open shoe-like plastic layer 30 ' was already fundamentally mentioned in the previous statements as one of the possible embodiment variants.
  • a semicircular open shoe-like plastic layer 30 ' has (see Figures 3 and 7 ) specifically has the following features:
  • the two-sided plastic element is made of two semicircular plastic layers 30 ', each with a central semicircular opening 50, the inner diameter of which essentially corresponds to an outer diameter of the drive shaft or has a larger inner diameter than the outer diameter of the drive shaft, the semicircular plastic layers 30' each being between one Outer end face 30C and an inner end face 30B, the semicircular plastic layers 30 'each forming two opposite contact surfaces 30A.
  • the plastic layers 30' there are two straight end face layers 30DD arranged, which connect the two plastic layers 30 ', which form the contact surfaces 30A, in a U-shape "as an open shoe", the end face layers 30DD being arranged on the straight end faces 204 of the knife base 20, which run in the radial direction and the plastic layer 30 ' limit overall in the circumferential direction.
  • a semicircular plastic layer 30 ' is in contact with one of the two contact surfaces 201 of the semicircular disc body segment of the knife base 20, with the straight end faces 204 of the semicircular disc body segment of the knife base 20 being U-shaped by means of end face layers 30DD are coated.
  • This previous embodiment variant can also be designed as a plastic element in the manner of a plastic disc body segment 30S.
  • An open shoe-like plastic disc body segment according to 30S Figure 7 has the following features:
  • the two-sided plastic element is made of two semicircular plastic disc body segments 30S, each with a central semicircular opening 50, the inner diameter of which essentially corresponds to an outer diameter of the drive shaft or has a larger inner diameter than the outer diameter of the drive shaft, the semicircular plastic disc bodies -Segments 30S each extend between an outer end face 30C and an inner end face 30B, with the semicircular plastic disc body segments 30S each forming two opposite contact surfaces 30A.
  • Two straight end face lips 30DD are arranged between the plastic disc body segments 30S, which connect the two plastic disc body segments 30S, which form the contact surfaces 30A, in a U-shape "as an open shoe", with the end face lips 30DD on the straight end faces 204 of the knife base 20 are arranged, run in the radial direction and delimit the plastic disc body segment 30S in the circumferential direction.
  • FIG 8 a so-called closed shoe-like plastic layer 30' is shown, in which the semicircular inner end face 202 of the semicircular knife base 20 is additionally provided with a plastic layer 30' or a plastic disc body segment 30S.
  • a semicircular closed shoe-like plastic layer 30 ' has (see Figures 3 and 8th ) specifically has the following features:
  • the two-sided plastic element is made of two semicircular plastic layers 30 ', each with a central semicircular opening 50, the inner diameter of which essentially corresponds to an outer diameter of the drive shaft or has a larger inner diameter than the outer diameter of the drive shaft, the semicircular plastic layers 30' each being between one Outer end face 30C and an inner end face 30B, the semicircular plastic layers 30 'each forming two opposite contact surfaces 30A.
  • plastic layers 30 ' are two straight end face layers 30DD and a semicircular inner end face layer 30BB, which connect the two plastic layers 30', which form the contact surfaces 30A, in a U-shape "as a closed shoe", with the end face layers 30DD on the straight end faces 204 of the knife foot 20 are arranged, which run in the radial direction and delimit the plastic layer 30 'as a whole in the circumferential direction and the inner end face layer 30BB is formed on the semicircular inner end face 202 of the knife foot 20.
  • a semicircular plastic layer 30 'of the knife base 20 rests on one of the two contact surfaces 201 of the semicircular disc body segment of the knife base 20, with the straight end faces 204 of the semicircular disc body segment of the knife base 20 also being connected by means of the end face layers 30DD and the inner end face 204 of the semicircular knife base 20 through the semicircular Inner end face layer 30BB U-shaped coated.
  • This embodiment variant can also be designed as a plastic element in the manner of a plastic disc body segment 30S.
  • a closed shoe-like plastic disc body segment 30S according to Figure 8 then has the following characteristics:
  • the two-sided plastic element is made of two semicircular plastic disc body segments 30S, each with a central semicircular opening 50, the inner diameter of which essentially corresponds to an outer diameter of the drive shaft or has a larger inner diameter than the outer diameter of the drive shaft, the semicircular plastic disc bodies -Segments 30S each extend between an outer end face 30C and an inner end face 30B, with the semicircular plastic disc body segments 30S each forming two opposite contact surfaces 30A.
  • two straight end face lips 30DD and an inner end face lip 30BB are arranged, which connect the two plastic disc body segments 30S, which form the contact surfaces 30A, in a U-shape "as a closed shoe", with the end face lips 30DD are arranged on the straight end faces 204 of the knife base 20, which run in the radial direction and delimit the plastic disc body segment 30S in the circumferential direction, the inner end face lip 30BB being formed on the semicircular inner end face 202 of the knife base 20.
  • a semicircular plastic disc body segment 30S rests against one of the two contact surfaces 201 of the semicircular disc body segment of the knife base 20, with the straight end faces 204 of the semicircular disc body segment 20 of the Knife base 20 is covered by means of the end face lips 30DD and the inner end face 204 of the semicircular knife base 20 in a U-shape by the semicircular inner end face layer 30BB.
  • L-shaped one-sided plastic layers 30' or plastic disc body segments 30S which are designed as follows:
  • a one-sided plastic element is provided as a semicircular plastic disk body segment 30S with a central semicircular opening 50, the inner diameter of which essentially corresponds to an outer diameter of the drive shaft or has a larger inner diameter than the outer diameter of the drive shaft, the semicircular plastic Disc body segment 30S extends between an outer end face 30C and an inner end face 30B, the semicircular plastic disc body segment 30S forming two opposing contact surfaces 30A, the plastic disc body segment 30S two orthogonally from the plastic disc body segment 30S in the axial direction has outgoing straight end face lips 30DD, which run in the radial direction and delimit the plastic disc body segment 30S in an L-shape in the circumferential direction, so that one of the contact surfaces 30A of the semicircular plastic disc body segment 30S in the assembled state with a cutter knife 100 is only one of the contact surfaces 201 of the semicircular
  • Another one-sided plastic element is designed in an embodiment variant in such a way that it in turn has a semicircular plastic disc body segment 30S with a central semicircular opening 50, the inner diameter of which essentially corresponds to an outer diameter of the drive shaft or has a larger inner diameter than the outer diameter of the drive shaft, wherein the semicircular plastic disc body segment 30S extends between an outer end face 30C and an inner end face 30B, the semicircular plastic disc body segments 30S forming two opposing contact surfaces 30A, the plastic disc body segment 30S two orthogonally from the plastic disc body -Segment has straight end face lips 30DD extending in the axial direction, which run in the radial direction and delimit the plastic disc body segment 30S in an L-shape in the circumferential direction, the straight end face lips 30DD in a semicircular L-shaped inner end face lip 30BB which also extends orthogonally in the axial direction from the plastic disc body segment, so that one of the contact surfaces 30A of the semicircular plastic disc body segment 30
  • These two L-shaped embodiment variants can also be formed as one-sided plastic layers 30 'on one of the contact surfaces 201 of the semicircular disk body segment of the knife base 20 with end face layers 30DD extending orthogonally in the axial direction and / or with a semicircular inner end face layer 30BB, the respective straight end face layers 30DD or the inner end face layer 30BB is/are then analogously designed as straight end face layers 30DD or as a semicircular inner end face layer 30BB and form an L-shaped plastic layer 30 'on the semicircular disc body segment of the knife base 20.
  • Figure 9 additionally shows that the plastic elements in the manner of a plastic disk 30 or a plastic disk body segment 30S in each of the embodiment variants can also be fastened non-positively by means of fastening elements 60 directly on the contact surface 201 of the circular or semicircular knife base 20.
  • This has the advantage that when dismantling and assembling the cutter knife 100, analogous to a plastic coating of the knife base 20 of the cutter knife 100, it is ensured that the respective plastic element is firmly arranged on the cutter knife 100, which increases work safety and enables one-handed removal or feeding becomes.
  • the plastic elements are clamped in a force-fitting manner between the traction sheaves 40.
  • the plastic elements according to the invention also rest in a form-fitting manner on the circular or segmented, in particular semicircular knife base 20, in an L-shape or U-shape depending on the embodiment variants, if the plastic elements do not just cover the contact surfaces 201.
  • the plastic elements already have a positive, stationary hold on the knife base 20 even without the non-positive tensioning of the traction sheaves 40 acting.
  • plastic elements of all variants according to the in Figure 9 shown embodiment are additionally fastened non-positively in the area of one or both contact surfaces 201 of the circular or segmented, in particular semicircular knife base 20, whereby either a non-positive or a non-positive and positive arrangement of the plastic elements is achieved.
  • plastic elements of all embodiment variants are glued to the contact surfaces 201 and/or 202 and/or 203 and/or 204 of the circular or segmented, in particular semicircular knife base 20, whereby either exclusively a cohesive adhesive connection or a cohesive adhesive connection is produced, which is combined with a positive arrangement.
  • these types of connections can also be made in a non-positive manner by additionally using fasteners of a non-positive type that hold the plastic elements in position.
  • All of these solutions advantageously have in common that the plastic element on the knife base 20 in each of the described shape configurations of the knife base 20 forms a solid, one-piece and true-to-position connection with the knife base 20, so that assembly and disassembly is facilitated and the vibration-reducing effect of the plastic elements between the Traction sheaves 40 are given.
  • the application coating of a firmly adhering plastic layer 30 'on the knife base 20 is meant, which advantageously achieves signaling, camouflage and marking of the knife base 20.
  • the advantages already mentioned arise in terms of hygiene and good cleaning options. Further effects include electrical insulation or reduction of conductivity or reduction in friction or increase in friction, and sound dampening as well as separation effect and flame protection as well as protection of the knife base 20 against chemical and biological damage and ultimately corrosion protection is achieved.
  • the envisaged coating processes include powder coating with plastic particles or vortex sintering, in which the knife base 20 is dipped in plastic powder.
  • flame spraying or rubber coating can be used for plastic coating in order to partially or completely cohesively coat the knife base 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Knives (AREA)
  • Food-Manufacturing Devices (AREA)
EP23164872.6A 2022-03-30 2023-03-29 Couteau de cutter optimisé en termes de montage, de vibration et d'hygiène Pending EP4260942A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022107548.6A DE102022107548A1 (de) 2022-03-30 2022-03-30 Montage-, schwingungs- und hygieneoptimiertes Kuttermesser

Publications (1)

Publication Number Publication Date
EP4260942A1 true EP4260942A1 (fr) 2023-10-18

Family

ID=85781732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23164872.6A Pending EP4260942A1 (fr) 2022-03-30 2023-03-29 Couteau de cutter optimisé en termes de montage, de vibration et d'hygiène

Country Status (2)

Country Link
EP (1) EP4260942A1 (fr)
DE (1) DE102022107548A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288025A2 (fr) 1987-04-24 1988-10-26 Wälchli, Hans, Dr. Tête à lames pour cutter
DE3935320A1 (de) 1988-12-07 1990-06-13 Walter Feuring Messerkopf fuer kuttermesser
DE9114309U1 (de) 1991-11-16 1993-03-11 Norbisrath, Max, 3565 Breidenbach Kuttermesser
DE10141713B4 (de) 2001-08-25 2004-03-11 Oliver Haack Messer für Schneidmaschinen
DE20320843U1 (de) 2003-04-08 2005-03-24 Cfs Germany Gmbh Messerkopf für Fleischkutter
DE202009014313U1 (de) 2009-10-22 2010-03-25 Götz GmbH - Kuttermesser & Schleiferei Kutter
WO2017089573A1 (fr) 2015-11-27 2017-06-01 Gea Food Solutions Germany Gmbh Disque porte-lames présentant un comportement au transport amélioré et une hygiène améliorée

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288025A2 (fr) 1987-04-24 1988-10-26 Wälchli, Hans, Dr. Tête à lames pour cutter
DE3935320A1 (de) 1988-12-07 1990-06-13 Walter Feuring Messerkopf fuer kuttermesser
DE9114309U1 (de) 1991-11-16 1993-03-11 Norbisrath, Max, 3565 Breidenbach Kuttermesser
DE10141713B4 (de) 2001-08-25 2004-03-11 Oliver Haack Messer für Schneidmaschinen
DE20320843U1 (de) 2003-04-08 2005-03-24 Cfs Germany Gmbh Messerkopf für Fleischkutter
DE202009014313U1 (de) 2009-10-22 2010-03-25 Götz GmbH - Kuttermesser & Schleiferei Kutter
WO2017089573A1 (fr) 2015-11-27 2017-06-01 Gea Food Solutions Germany Gmbh Disque porte-lames présentant un comportement au transport amélioré et une hygiène améliorée

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