EP0744245B1 - Appareil et procédé pour affiler automatiquement des lames de coupe longues et droites - Google Patents

Appareil et procédé pour affiler automatiquement des lames de coupe longues et droites Download PDF

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Publication number
EP0744245B1
EP0744245B1 EP96108047A EP96108047A EP0744245B1 EP 0744245 B1 EP0744245 B1 EP 0744245B1 EP 96108047 A EP96108047 A EP 96108047A EP 96108047 A EP96108047 A EP 96108047A EP 0744245 B1 EP0744245 B1 EP 0744245B1
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EP
European Patent Office
Prior art keywords
honing
blade
knife
station
movable
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.)
Expired - Lifetime
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EP96108047A
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German (de)
English (en)
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EP0744245A1 (fr
Inventor
Lance A. Dunbar
E. Anthony Miller
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.)
GUSTAV GOCKEL MASCHINENFABRIK GmbH
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GUSTAV GOCKEL MASCHINENFABRIK GmbH
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Publication of EP0744245A1 publication Critical patent/EP0744245A1/fr
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    • 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
    • B24B3/38—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades for planing wood, e.g. cutter blades

Definitions

  • the present invention relates to an apparatus and method for performing an automated honing of elongated, straight-edged cutting knives, such as those that are common in machines with printers and in paper processing machines for cutting paper and by book manufacturers for trimming used by books.
  • sharpening and honing cutting knives of the type used here is considered, two separate steps, first that of sharpening the knife on a grinder built for this purpose, and secondly either manual or mechanical honing of the sharpened knife around the sharpening burr, which is generated during the grinding process, and consequently one to create a smooth, sharp cutting edge.
  • the first is the manual process that employs a specialist individually Use of honing stones sets in, this procedure being an essential workout and a great sense of eye-hand coordination requires that relatively slowly compared to a piece throughput from a grinder that does that Sharpening is, and the consistency of a sharpness that is achieved isn't just that variable between different people, but even with the same person.
  • the second method of honing a sharpened knife is one, some Type of mechanical device, and the mechanical device,
  • the one most commonly used is the one that has relatively coarse sharpening discs on one Grinding machine through auxiliary discs with a much finer abrasive property and returning the sharpened knife back through the grinder using the finer, abrasive discs are used to hone the knife, replaced.
  • This method has several disadvantages in that one Grinding machine is involved in the honing process, and similar to honing with the Hand honing with a grinding machine is a slow process.
  • An adaptation of the grinding machine profile and the technology to a mechanical one Honing of the type described above is disclosed in U.S. Patent No. 4,845,900 for Suzuki et al, dated July 11, 1989, one set of upper and lower Grinding wheels is used to make a super finish, or a honing, one to achieve a sharpened knife.
  • This device is according to the Preamble of claim 1.
  • an apparatus and a method for honing elongated, straight-edged cutting knives to create the one Use an elastically supported surface of a honing medium to increase the honing effectiveness increase.
  • Yet another object of the present invention is an apparatus and method for honing elongated, straight-edged cutting knives that are adapted to this is to accommodate knives of different lengths, widths and thicknesses.
  • FIG. 1 shows a plan view of the device for automated honing or drawing grinding Elongated, straight-edged cutting knife 10 shown as the main component parts a support frame 12 made up of interconnected horizontal and vertical Parts 14 and 16 are each assembled, a control panel 18, with a Power supply source is connected by a line device 20 through which the various control and operating stations are supplied with energy and controlled or can be positioned, a movable knife holder carrier 22 which with a variety of Knife clamps 24 is provided, through which a sharpened, elongated, straight-edged Cutting knife 26 for honing in an aligned position for an indexed one Advancement is secured by the knife honing station 28, the latter a variety Sets of upper and lower orbital powered knife honing heads 30 and 32 each has, whereby the sharpened knife 26 automatically honed and with a sharply finished cutting edge under a single, indexed cycle the device 10 is provided.
  • FIGS. 1 and 2 in more detail describe the main component parts of this invention as well as those structurally to explain interacting features thereof, in addition to the method automated honing of a sharpened, elongated, straight-edged Cutting knife 26, which is thereby delivered.
  • the sharpened knife 26 is placed on the movable knife holder bracket 22 and positionally thereon with respect to the knife honing station 28 by a communicative Alignment and striking a longitudinal end of the knife 26 on the Knife alignment end stop 36 aligned with a stationary alignment device is that at the inlet 38 of the honing head station of the movable knife holder carrier is fixed, and accordingly aligns the longitudinal orientation of the knife 26, that should be honed in relation to the knife honing station 28.
  • Knife setting jig 40 which will be explained in more detail below will, in short, be a retractable knife alignment device, which can be swiveled for lateral and angular knife adjustment by means of the knife adjuster actuating cylinder 42 is positioned, which is via the knife set jig up and down control switches 44 and 46 of the control panel 18, respectively is activated, and it enables an aligned positioning of the sharpened cutting edge 34 of the knife 26 so as to progressively from the work surfaces of the upper and lower honing heads 30 and 32 during one longitudinally shifted passage to move through and thereby cutting and damaging it by the sharpened cutting edge 34 of the knife 26 avoid.
  • the sharpened, elongated, straight-edged cutting knife 26 lengthways and laterally with respect to the angular orientation along the longitudinal axis feed is oriented towards the knife honing station 28, the oriented knife 26 is then pressed together on the movable knife holder carrier 22 by means of the knife clamps 24 secured and held in place.
  • a magnetic bed is used to hold steel work pieces, such as knives and the like to secure and hold on a movable bed or support.
  • a mechanical security device such as knife terminals 24, the largest Flexibility and freedom in the speed and simplicity of a movement and Setting provides to orient and secure the knives 26 for honing purposes this is particularly the case when a plurality of relatively short Knives 26 for honing end to end lengthways on the movable knife holder carrier 22 initiated and coupled in this way for honing, as shown in a two-knife setting in plan view in FIG. 1.
  • the movable knife holder carrier runs on a set of spaced, tubular ones Rails 48 back and forth by means of rail shoes 50, which are not shown in FIGS. 1 and 2 are seen, but are shown in certain subsequent figures, and will cyclically lengthwise through the knife honing station 28 by means of a cable 52 and moved forward, the respective ends of it with each side of a pneumatically driven Has connected piston 54, which in turn reciprocates within a sleeve 56 is displaceable.
  • the cable or rope 52 is with the movable knife holder carrier 22 connected to a cable connection 58 and works on this connection 58, around a longitudinal drive displacement direction of the movable knife holder carrier 22 change when the cable 52 is operated around pulleys 60 and 62 when the drive piston 54 moves back and forth in the sleeve 56.
  • Limitations of the longitudinal displacement of the movable knife holder carrier 22 are at the end of the knife honing station by the longitudinal displacement limit switch 64 of the movable Knife holder carrier and at the return end by the limit switch 66 of the movable knife holder carrier set and controlled.
  • Knife honing station 28 moves longitudinally.
  • switch 74 for automatic Initiate cycle of the movable knife holder carrier 22 in a single Honing cycle passage forward and backward from that actuated by cam 76 Knife honing station 28 moves longitudinally.
  • an operator can use a single or multiple forward and return cycles of the movable knife holder carrier 22 through the knife honing station 28 by means of the run and stop switches 78 and 80, whereby, whether automatically cyclically or otherwise, the cumulative number of cycles is recorded on the cycle counter 82.
  • FIG. 3 to 5 for viewing a typical, sharpened, elongated, straight-edged cutting knife 26 and the various aspects of one Honens as it relates.
  • a knife 26 usually made of hardened or tempered Steel is made, an elongated, rectangular body 84 that with a plurality of screw hole openings 86 is provided by the connecting screws are used when the knife 26 in a cutting or trimming machine is assembled.
  • the knife is also provided with an inclined surface 88 which in a sharpened cutting edge 34 ends.
  • a sharp, reinforced cutting edge profile 94 provides, as is the case with the new cutting edge angles "a" and "b" can be seen on the top and bottom, respectively Alternate approximately thirty-five and two degree relative angular relationships, as shown on the underside of the knife surface 96.
  • the preferred honing result, as shown in Fig. 5, is below one single, cyclical passage of a sharpened knife 26, as shown in FIG. 4 is achieved by the honing station 28 of the device 10.
  • FIG. 6 the structural features the upper and lower orbital or honing knife head assemblies 30 and 32 illustrate by which honing is performed.
  • the view 6 is an enlarged side elevation of the upper, orbitally driven Knife honing head 30, with the corresponding top view as shown in Fig. 7.
  • the views shown in Figs. 8 and 9 are similar to the previous ones, but they are for the lower, orbitally powered Knife honing head 32 is provided, with the respective heads 30 and 32 interacting or cooperative sentences are used, and although they are under are profiled at different angles to effect honing, they are from one similar structure and function.
  • each knife horn has a motor 98 enclosed within a knife honing housing 100 and is carried and that by means of energy supply channels or lines 102 with suitable activation switch devices, described more fully below and are explained.
  • Each motor 98 is eccentric Drive transmission 104 provided via which an orbital drive movement directly applied to the honing medium mounting head 106 by means of a shaft 108 with each honing medium mounting head 106 made of a suitable resilient Material is made to which an abrasive honing medium sheet 110 is suitably attached and can be secured, for example by a contact adhesive or a certain other suitable mechanical device.
  • the head housings 100 are assembled by means of screws 112, the distance these screws 112 in turn enable removal of the side plate 114 and thereby access to engine 98 or transmission 104, as well as to the line or channel connections 116 for purposes of one Maintenance and repair.
  • the upper knife horn support arm 118 is attached and positioned the upper, orbitally driven knife honing head 30, and the lower knife honing support arm 120 attaches and positions the lower, orbitally driven knife honing head 32, and in both cases arms 118 and 120 are of sufficient structural strength to both the weight of the respective heads 30 and 32 as well how to absorb the orbital vibratory movements from it.
  • a cooperative, mechanical Operation of the upper and lower orbitally driven knife honing heads 30 and 32 will be discussed in more detail below based on a detailed consideration of FIGS 26 inclusive.
  • the knife adjuster 40 as well certain of the other mechanically cooperative and structural features of the device 10 of them facing.
  • the purpose of the knife adjuster is 40 the one, an aligned positioning of the sharpened Cutting edge 34 of knife 26 is angularly related to the longitudinal axis the direction of a linear displacement "X" of the movable knife holder carrier 22 to make.
  • the knife adjustment jig 40 is pivotable retractable about tensioner joints 122 when the actuating cylinder 42 of the Knife setting jig by up or down switch 44 or 46 on the control panel is activated. Furthermore, the knife adjustment clamping device 40 is equipped with a elastic knife edge contact rod 124 against which the sharpened Cutting edge 34 of knife 26 in an aligned position without damage can be moved. And as has been said in addition and before, the Knife adjustment jig 40 in conjunction with the knife alignment end stop 36 used to set up a suitable longitudinal positioning of the knife 26. Also with the knife alignment end stop 36 and the limit switch 64 for the longitudinal displacement of the movable knife holder carrier, as shown in 1 and FIGS.
  • each such knife clamp 24 with a mounting bracket 128 is provided, which in turn on the movable knife holder carrier 22nd is mounted by means of support screws 130.
  • an upwardly projecting clamping arm 132 with pressure or compression roller 134 which can be operated cooperatively via a clamping lever arm 136, in terms of compression an elastic compression tip 138 on an aligned positioned knife 26 for honing on the movable knife holder carrier 22, being determined that the elastic compression tip 138 is vertical by means of a threaded shaft 140 is adjustable, which is screwed in over the end of the clamping lever arm 136 is mounted so as to receive knife 26, the rectangular knife body 84 different Possess thicknesses.
  • FIG. 11 The enlarged side sectional elevation shown in Fig. 11 further illustrates the Operation of the knife adjustment jig 40, the execution in a solid Line thereof the knife alignment position with the actuator cylinder 42 of the Knife setting jig represents extended, and the length of the sharpened Cutting edge 34 of knife 26 in fixed contact with the elastic Knife edge contact bar 124 positioned as shown. If the knife 26 is aligned in an angular arrangement to the longitudinal axis and itself inserting the knife 26 into tight abutting contact with the knife alignment end stop 36 is arranged as previously and more clearly in Fig.
  • the knife terminals 24 are then closed to the elastic Compression tips 138 each of them along the length of the knife 26 in a compressive manner Bring contact with the right-angled knife body 84, and consequently the knife 26 correspondingly compressive or pressed in an aligned position secured on the movable knife holder carrier 22.
  • the actuating cylinder 42 of the Knife adjustment jig is then withdrawn as indicated and the knife adjustment jig 40 attached thereto via the lever arm 142 connected, pivots about tensioner joints 122 and becomes similar Withdrawn way, as is also indicated. It should continue to be noticed that the actuating cylinder 42 of the knife adjustment jig is not fixed, but in a pivotable connection between the rotating frame or. Hinge pin 144 and lever arm pivot pin 146 hovers.
  • the honing head power switch 148 is used to the energy supply to the knife honing heads 30 and 32 towards the conclusion of a Switch off knife honing cycle.
  • the respective honing medium abrasive blades thereof are arranged so to leave space for an unimpeded passage of the knife 26 create as is the case during a return cycle of the movable knife holder carrier 22 to the starting position with the completion of a knife honing would be the case.
  • camshaft actuating cylinder would are in a retracted position so that the respective knife honing heads 30 and 32 would be in a non-spread profile and the relative, operational positions each of which would be a function of cam 76 which engages with the upper and lower knife honing head cam followers 160 and 162, which in turn with the upper and lower knife honing arms 118 and 120 through their respective upper and lower cam follower link arms 164 and 166 are connected.
  • the upper and lower knife horn support arms are 118 and 120 vertically on their respective arm mounting and retention shafts 168 and 170 displaceable, the upper knife honing head 30 by means of cams against the Is operated by gravity and the lower knife honing head 32 against a spring force lower knife honing tension spring 172 is actuated. Also in Fig. 12 is the honing head casing or cabinet 174 shown, which serves both a security for the operator as well as for the machine.
  • Fig. 13 is an enlarged top plan view to the knife honing station 28 and in better detail the relation of the Introductory 38 of the movable knife holder carrier honing head station, with an aligned and fixed knife 26 in a honorable relationship to.
  • Fig. 13 is an enlarged top plan view to the knife honing station 28 and in better detail the relation of the Introductory 38 of the movable knife holder carrier honing head station, with an aligned and fixed knife 26 in a honorable relationship to.
  • two sets of upper and lower, orbital driven knife honing heads 30 and 32 are present, the working units the knife honing station 28. This will only be considered as an example since the Variety of sets of knife honing heads 30 and 32 could be any number that best suited according to the type of particular knife honing that is made should be found.
  • a leading set of knife honing heads 30 and 32 which is attached with an abrasive blade 110 with relatively coarse-grained honing medium by a distance of the burr 90 from the sharpened cutting edge 34 of the Knife 26 and to deliver from the cutting edge 92, as previously shown in Fig. 5 is followed by a trailing set of knife honing heads 30 and 32, each of which is fixed with an abrasive blade 110 of a relatively fine-grained honing medium, for finishing honing and the sharp, reinforced cutting edge profile 94 provide a satisfactory and appropriate, as also shown previously in Fig. 5 Combination is.
  • connection 158 of the cylinder camshaft connection to the honing head power switch 148 on and switches the power supply to the knife honing heads 30 and 32 from.
  • a clearer representation of the Honkopf power cut by engagement of the honing head power switch 148 with the connection 158 of the cylinder-camshaft connection is in a solid line representation shown in Fig. 14.
  • FIG. 15 and 16 represent operational Upper and lower knife honing configurations 30 and 32 of the leading knife horn set relative to the movable knife holder carrier 22 immediately before the initiation of a honing cycle of a knife 26, these Views correspond to those along lines 15-15 and 16- 16 of FIG. 13 are made.
  • 15 and 16 are the operational ones Initiation relationships of the knife honing cycle for the knife honing heads 30 and 32 to the sharpened cutting edge 34 of the knife 26 to be honed, the cam 76 to the upper and lower knife honing cam followers 160 and 162, and the upper and lower knife honing opening cams 150 and 152 to the upper and the lower cam follower link arms 164 and 166, shown in FIG.
  • FIGS. 15 corresponds to those simplified top honing head actuation sequence views that start with and are shown in FIG. 17 and continue through FIG. 21 including and Fig. 16 corresponds to such simplified operational sequence views of the lower one Knife honing heads 32, which begin with FIG. 22 and are shown and up to and including FIG. 26 continue.
  • a Honing cycle as shown by FIGS.
  • the upper knife honing head 30 in a gravitational starting position with the retention collar 180 the upper honing head of the support arm 118 at a rest position against the upper support arm attachment and the retainer shaft stop 182, and the spring biased home position of the lower knife honing head 32 with the upper retention collar 184 of the lower honing head of the support arm 120 in a compressed position against the lower bracket mounting and the retention shaft stop 186 arranged.
  • FIGS 17 to 21 There will now be an operating sequence of the upper knife honing head 30, as shown in FIGS 17 to 21 is shown, facing where the left-hand representation of each figure is one simplified view across the line of operational honing cycle shift of the movable knife carrier holder 22 and the right-hand representation of each figure a corresponding simplified view along the line of the operational honing cycle shift of the movable knife holder carrier 22 is, that is, one side and a corresponding end view of the operational sequence of head 30 below the level of the honing cycle shift is represented by each figure. It is found 17 that the level of the honing cycle sequence shown in Fig. 17 is as before in the enlarged, simplified end elevation of the upper honing head 30 15, as shown in FIG.
  • the head 30 means mechanically and the knife 26 are a relation profile, which is like the movable knife holder carrier 22 in the initial stages of an operational honing cycle shift immediately before the start of knife honing by the leading Knife honing head set.
  • the upper, orbitally driven knife honing head 30 is arranged under gravity rests with the lower retention collar 180 of the upper honing head in contact the upper support arm attachment and retention shaft stop 182, where the abrasive sheet 110 as a honing medium thereof below the level of the sharpened Cutting edge 84 of the knife 26, which is to be honed, is located.
  • the opening cam 150 of the upper knife honing head is in a neutral position and the upper guide surface of the cam 76 initially has the cam follower 160 of the interfered with the upper knife honing head and started a lifting shift to exert on the support arm 118 of the upper knife honing head when the cam 76 through the movable knife holder carrier 22 to the front through the knife honing station 28 is worn.
  • Energy to the upper honing head 30 drives the abrasive blade 110 with honing medium in an orbital movement in relation to the sharpened cutting edge 34 to be honed.
  • FIG. 18 represent a continuous, forward facing Shift the operational honing cycle of the cam 76 with a corresponding one Lifting displacement of the upper honing head continues when the cam follower 160 runs continuously on the upper guide surface of the cam 76, so that the surface of the abrasive blade 110 as the honing medium the edge of the advancing Knife 26 clears so that the head 30 can then be lowered and a honender Contact of the surface of the abrasive blade 110 on the underlying, sharpened Cutting edge 34 can be caused to initial honing from above to begin when the cam follower 160 is the top, recessed surface of the cam 76 crosses.
  • the cam 76 has shifted forward to the point where the Cam follower 160 is disengaged from the upper recessed surface thereof and the upper, orbitally driven honing head 30 is made of its abrasive blade 110 Honing medium under the force of gravity of the head 30 onto the sharpened cutting edge 34 of the Knife 26 arranged to effect honing from above. It is found the opening cam 150 of the upper knife honing head in a neutral, unactivated state remains as shown.
  • FIG. 20 The views shown in Fig. 20 explain the completion of a honing cycle through the upper honing head 30 of the leading knife honing head set, with a continued, forward displacement of the movable knife holder carrier 22 and the cam 76, which is to be trailed by the knife honing station 28 Honing head sets, and a repeat cycle subsequent upper honing heads 30, as described above, is performed using it will be understood as previously referred to that the honing medium the abrasive blades 110 of the subsequent honing head 30 become progressively finer, around the sharp-edged chisel edge 92 with a reinforced cutting edge profile 94 to form on the finished honed knife 26.
  • the upper honing head 30 moves away from the trailing edge of the knife 26 moved away and returns to the gravity-based initial profile, such as this is indicated, with the lower retention collar 180 of the upper one Honing heads in turn against the upper bracket attachment and retention shaft stop 182 and with the abrasive blade 110 made of honing medium below the level of the sharpened cutting edge 34 of the knife 26 that is straight has been moved through there.
  • the operational sequence of the lower knife honing head 32, as shown in FIG 22 to 26 is shown, with the left-hand representation as before each figure shows a simplified view across the line of operational honing cycle shift of the movable knife holder carrier 22 and the right-hand representation each figure has a corresponding simplified view along the line of operational Honing cycle displacement of the movable knife holder carrier 22 is one Side and a corresponding end view of the operational sequence of the head 32 are under a shift stage of the honing cycle as shown by each figure is. It will be noted that the level of the honing cycle sequence shown in Fig. 22 is shown as previously in the enlarged, simplified end elevation of the lower honing head 32 shown in FIG.
  • the head 32 of the profile 32 mechanically and the knife 26 are a relation profile for this purpose such as the movable knife holder carrier 22 in the initial phase of displacement the operational honing cycle immediately before the start of knife honing through the leading knife honing head set.
  • the lower, orbitally driven knife honing head 32 is in one is biased position by a spring 172, the upper retention collar 184 of the lower honing head in contact against the mounting and Retention shaft stop 186 of the lower arm is located, the abrasive Sheet 110 with the honing medium at the lower level of the sharpened cutting edge 34 of the knife 26, which is to be honed, is located.
  • cam 152 of the lower knife honing head As also shown is located the opening cam 152 of the lower knife honing head in a neutral position and the lower, leading side of cam 76 initially has in the cam follower 162 of the lower knife horn head intervened and started a falling movement to the support arm 120 of the lower knife honing head against the resilience of the spring 172 when the cam 76 is carried by the movable knife holder carrier 22 is worn, continues to move forward through the knife honing station 28.
  • the abrasive blade 110 drives energy to the lower knife honing head 32 Honing medium in an orbital movement with respect to the sharpened cutting edge to be honored.
  • FIG. 23 represent the forward shift of one continued, operational honing cycle of the cam 76 with a corresponding lowering displacement of the lower honing head 32 when the cam follower 162 continues to run on the lower guide surface of the cam 76 so that the surface of the abrasive blade 110 of honing medium below the edge of the advancing Knife 26 hangs and makes it free, so that the head 32 is then by the tension the spring 172 can be raised and the honing contact of the surface of the abrasive Blade 110 made on the now deliberate, sharpened cutting edge 34 can be used to perform an initial honing from below when the cam follower 162 crosses the lower, receding surface of the cam 76.
  • the cam 76 continues to move forward when the Cam follower 162 moves to save it from the lower, recessed surface thereof Engaging, and the lower, orbitally driven honing head 32 arranges its abrasive Sheet 110 of honing medium under the tension of spring 172 on the underside the sharpened cutting edge 34 of the knife 26 to complete the initial Honens complete it from below.
  • the Opening cams 152 of the lower knife honing head in the neutral, not activated State as shown remains.
  • the views shown in Fig. 25 explain the completion of both the honing cycle process by the lower honing head 32 as well as that of the initial honing of knife 26 by the previous one Knife honing station 28 honing head set.
  • the abrasive blade 110 is The honing medium of the subsequent head 32 progressively becomes finer to the very sharp one Cross cutting edge 92 of a reinforced cutting edge profile 94 on the finished, to produce honed knife 26.
  • FIG. 27 is a top plan view of a alternative embodiment 10a of the apparatus of the present invention for an automated Honing elongated, straight-edged cutting knives shows where in this embodiment the knife honing station 28a is movable with the cable or rope 52 is connected and reciprocating by the pneumatic piston 54 is driven on the spaced tubular rails 48, thereby a Honing a sharpened cutting edge 34 of an elongated, straight-edged one Cutting knife 26, which is in an aligned arrangement, in this case by a A plurality of knife clamps 24 are attached to a stationary knife holder 22a are to effect.
  • alternative embodiment 10a of the present Invention is one, a refined modification of an outdated knife sharpening equipment in a knife honing machine in an automated, single cycle. And with the exception of a shift in the movable honing head station 28a past a stationary knife holder 22a instead of vice versa, one becomes Modified, mechanical mode of operation of the knife adjustment clamping device 40 in one those up and down, instead of a pivoting process, and the stationary cam instead of movable cam to the upper and lower, orbital to operate driven knife honing heads 30 and 32, the machine and the method of the invention remain the same.
  • the alternative embodiment 10a of the operation of the knife adjustment jig 40 considered, with, as before, a sloping, angular Setting 2 degrees of the sharpened cutting edge 34 of the knife 26 which is honed should be, with respect to the longitudinal axis of a linear displacement X of the movable Knife honing station 28a is present.
  • An operation of the knife adjustment jig 40 is up and down within a spaced setting of channel guide tracks 188 located on horizontal frame members 14 on each longitudinal or longitudinal end of the frame of the Messeereinstell clamping device 40 attached are.
  • the clamping device is positioned and retracted 40 to use the elastic knife edge contact bar 124 for purposes allow knife alignment prior to initiating a honing cycle, and that is, by means of a cooperative set of push-pull cylinders 190 that come from the control panel 18 can be moved cyclically to raise the frame of the clamping device 40 and depress.
  • the knife 26 and the sharpened Cutting edge 34 thereof set for honing by means of the frame of the clamping device 40, so a sloping transition of the upper and lower knife hon heads 30 and 32 during a honing cycle shift thereof along the surface of the sharpened Cutting edge 34 for honing thereby to achieve the probability reduce damage to the abrasive blades 110 with honing medium, such as this was previously explained.
  • the push-pull cylinders 190 are actuated by means of opening and closing Down switches 44 and 46 for the knife adjustment pretensioner of the control panel 18th
  • the upper and lower knife honing heads 30 and 32 are cycled in the same way and way, as previously described, moves what by an interaction of the Cam followers 160 and 162 with the cam 76 attached to the stationary knife holder 22a is attached. In this case, however, the cam followers 160 and 162 with the movable knife honing station 28a behind the cam 76, which in a fixed position is attached, as shown, on the stationary knife holder 22a shifted.
  • Actuation of the camshaft 154 to raise and lower the upper one and lower knife honing heads 30 and 32 by means of the upper and lower knife honing opening cams 150 and 152 for a cyclically returned transition of the movable Knife honing station 28a back to the starting position is done by an interaction of the cyclically returning activated lever 192 with the firmly attach, recycle cam plate 194, and at the start position to heads 30 and 32 by means of an interaction of the cyclically activating lever 196 with the fixed one attach cycle cam plate 198 to close.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (21)

  1. Appareil (10, 10a) pour affiler de manière automatique des lames de coupe (26) longues, droites, comprenant
    un bâti (12) avec, monté sur celui-ci, un support porte-lame de coupe (22, 22a) sur lequel sont prévus plusieurs dispositifs de serrage (24) pour recevoir, correctement positionnée, au moins une lame de coupe (26) longue, droite, en vue de son affilage,
    un dispositif pour produire un mouvement relatif cyclique de translation suivant l'axe longitudinal de l'appareil (10, 10a) entre le support porte-lame de coupe (22, 22a) et un poste d'affilage de lame de coupe (28, 28a), ainsi qu'un dispositif pour ramener automatiquement, de manière cyclique, au point de départ l'élément mobile déplacé de manière cyclique, à la fin de chaque cycle de déplacement longitudinal,
    caractérisé par le fait que le poste d'affilage de lame de coupe (28, 28a) comporte plusieurs têtes d'affilage (30, 32) qui coopèrent les unes avec les autres et agissent successivement sur la lame de coupe (26) aux fins d'affiler l'arête de coupe (34) au cours d'une passe unique.
  2. Appareil selon la revendication 1, caractérisé par le fait que le support porte-lame de coupe (22, 22a), à l'extrémité d'entrée du poste d'affilage, est équipé d'une butée de positionnement de lame de coupe (36) qui peut être positionnée perpendiculairement à l'axe longitudinal de l'appareil (10, 10a).
  3. Appareil selon la revendication 2, caractérisé par le fait que le support porte-lame de coupe (22, 22a) est pourvu d'un dispositif de réglage-serrage de lame de coupe (40).
  4. Appareil selon la revendication 3, caractérisé par le fait que le dispositif de réglage-serrage de lame de coupe (40) est positionné avec un petit angle d'inclinaison par rapport à l'axe longitudinal de l'appareil (10, 10a).
  5. Appareil selon la revendication 3 ou 4, caractérisé par le fait que le dispositif de réglage-serrage de lame de coupe (40) est pourvu d'une barre de contact d'arête de lame de coupe (124) afin de permettre le calage de l'arête coupante (34) de la lame de coupe (26) dans une position angulaire correspondante par rapport à l'axe longitudinal de l'appareil (10, 10a).
  6. Appareil selon une des revendications 1 à 5, caractérisé par le fait que les dispositifs de serrage (24) sont des pinces à compression.
  7. Appareil selon une des revendications 1 à 6, caractérisé par le fait que le poste d'affilage des lames de coupe (28) et les têtes d'affilage de lame de coupe qui coopèrent les unes avec les autres comprennent un ensemble de têtes d'affilage d'entrée (30, 32) et au moins un ensemble de têtes d'affilage de sortie (30, 32).
  8. Appareil selon la revendication 7, caractérisé par le fait que l'ensemble de têtes d'affilage d'entrée (30, 32) comprend une tête d'affilage (30) supérieure et une tête d'affilage (32) inférieure.
  9. Appareil selon la revendication 7 ou 8, caractérisé par le fait que l'ensemble de têtes d'affilage de sortie (30, 32), au nombre d'au moins un, comprend une tête d'affilage (30) supérieure et une tête d'affilage (32) inférieure.
  10. Appareil selon la revendication 8, caractérisé par le fait que la tête d'affilage (30) d'entrée supérieure et la tête d'affilage (32) d'entrée inférieure sont munies chacune d'une plaque abrasive avec un produit de polissage.
  11. Appareil selon la revendication 9, caractérisé par le fait que la tête d'affilage (30) de sortie supérieure et la tête d'affilage (32) de sortie inférieure sont munies chacune d'une plaque abrasive avec un produit de polissage à finesse croissante.
  12. Appareil selon une des revendications 1 à 11, caractérisé par le fait que la pluralité de têtes d'affilage (30, 32) qui coopèrent les unes avec les autres présentent des mécanismes d'entraínement pour exécuter un mouvement de polissage circulaire.
  13. Appareil selon une des revendications 1 à 12, caractérisé par le fait que le poste d'affilage de lame de coupe est monté fixe sur le bâti (12) et que le support porte-lame de coupe (22) peut être déplacé de manière cyclique par rapport au poste d'affilage de lame de coupe (28).
  14. Appareil selon la revendication 13, caractérisé par le fait que le dispositif de réglage-serrage de lame de coupe (40) est monté pivotant sur le le bâti (12).
  15. Appareil selon la revendication 13 ou 14, caractérisé par le fait que le dispositif pour déplacer de manière cyclique le support porte-lame de coupe (22) mobile comporte un piston (54) mû par voie pneumatique.
  16. Appareil selon la revendication 15, caractérisé par le fait que le piston (54) mû par voie pneumatique est lié au support porte-lame de coupe (22) mobile au moyen d'un câble (52).
  17. Appareil selon une des revendications 1 à 12, caractérisé par le fait que le support porte-lame de coupe (22a) est monté fixe sur le bâti (12) et que le poste d'affilage de lame de coupe (28a) peut être déplacé de manière cyclique par rapport au support porte-lame de coupe (22a).
  18. Appareil selon la revendication 17, caractérisé par le fait que le dispositif de réglage-serrage de lame de coupe (40) peut être déplacé verticalement vers le haut et vers le bas sur le bâti (12).
  19. Appareil selon la revendication 17 ou 18, caractérisé par le fait que le dispositif pour le déplacement cyclique du poste d'affilage de lame de coupe (28a) mobile, comprend un piston (54) mû par voie pneumatique.
  20. Appareil selon la revendication 19, caractérisé par le fait que le piston (54) mû par voie pneumatique est lié au poste d'affilage de lame de coupe (28a) mobile au moyen d'un câble.
  21. Procédé pour affiler des lames de coupe longues, droites, à l'aide d'un dispositif selon les revendications 1 à 20, selon lequel
    on positionne et on fixe une lame de coupe (26) sur le support porte-lame de coupe (22, 22a),
    on déplace soit le support porte-lame de coupe (22), soit le poste d'affilage (28a) par rapport au poste d'affilage (28) fixe ou au support porte-lame de coupe (22a), dans la direction longitudinale, depuis une position de départ jusqu'à une position finale,
    la lame de coupe (26) passant par une pluralité de têtes d'affilage (30,32) et l'arête de coupe étant affilée en une passe unique par le dessus et par le dessous puis
    on éloigne l'une de l'autre les têtes d'affilage (30,32) supérieure et inférieure et on ramène le support porte-lame de coupe (22) mobile ou le poste d'affilage (28a) mobile à sa position de départ.
EP96108047A 1995-05-25 1996-05-21 Appareil et procédé pour affiler automatiquement des lames de coupe longues et droites Expired - Lifetime EP0744245B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/449,885 US5700182A (en) 1995-05-25 1995-05-25 Apparatus and method for automated honing of elongated straight-edged cutting blades
US449885 1995-05-25

Publications (2)

Publication Number Publication Date
EP0744245A1 EP0744245A1 (fr) 1996-11-27
EP0744245B1 true EP0744245B1 (fr) 1999-11-17

Family

ID=23785869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108047A Expired - Lifetime EP0744245B1 (fr) 1995-05-25 1996-05-21 Appareil et procédé pour affiler automatiquement des lames de coupe longues et droites

Country Status (4)

Country Link
US (1) US5700182A (fr)
EP (1) EP0744245B1 (fr)
AT (1) ATE186668T1 (fr)
DE (1) DE59603651D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1621281A1 (fr) * 2004-07-30 2006-02-01 Rollomatic S.A. Dispositif de serrage d'une plaquette d'outil dans une machine d'affûtage
JP4715457B2 (ja) * 2005-11-16 2011-07-06 セイコーエプソン株式会社 シート切断装置、およびこれを備えた印刷装置
CN102161170A (zh) * 2011-01-30 2011-08-24 温州市锐博机械成套有限公司 程控全自动磨刀机
CN112757079B (zh) * 2020-12-31 2022-05-17 泉州市海恩德机电科技发展有限公司 一种智能化石材打磨设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4418499A (en) * 1979-11-01 1983-12-06 Shinko Machinery Works Inc. Cutter grinding machine
US5005319A (en) * 1984-03-12 1991-04-09 Edgecraft Corporation Knife sharpener
US4617763A (en) * 1984-07-19 1986-10-21 Edling Theodore L Belt driven knife sharpener
US4752304A (en) * 1986-09-24 1988-06-21 Hacker Instruments, Inc. Blade stropping apparatus
US4845900A (en) * 1986-12-25 1989-07-11 Kabushiki Kaisha Taihei Seisakusho Method and apparatus for grinding straight-edged cutting tools to a fine finish
US4939869A (en) * 1988-10-20 1990-07-10 Stoll Noel E Method and apparatus for sharpening knives
JP3317738B2 (ja) * 1993-03-19 2002-08-26 株式会社太平製作所 刃物研削方法および装置

Also Published As

Publication number Publication date
US5700182A (en) 1997-12-23
EP0744245A1 (fr) 1996-11-27
DE59603651D1 (de) 1999-12-23
ATE186668T1 (de) 1999-12-15

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