EP0095912A2 - Support pour lames - Google Patents

Support pour lames Download PDF

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Publication number
EP0095912A2
EP0095912A2 EP83303078A EP83303078A EP0095912A2 EP 0095912 A2 EP0095912 A2 EP 0095912A2 EP 83303078 A EP83303078 A EP 83303078A EP 83303078 A EP83303078 A EP 83303078A EP 0095912 A2 EP0095912 A2 EP 0095912A2
Authority
EP
European Patent Office
Prior art keywords
blade
recess
wedge
wedge member
cylinder
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.)
Granted
Application number
EP83303078A
Other languages
German (de)
English (en)
Other versions
EP0095912B1 (fr
EP0095912A3 (en
Inventor
William Blauser Attenweiler
Dineshchandra Gulabrai Punater
John Lawrence Herman
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.)
Cessione am International Inc
Original Assignee
Harris Graphics Corp
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
Priority claimed from US06/383,865 external-priority patent/US4475425A/en
Application filed by Harris Graphics Corp filed Critical Harris Graphics Corp
Publication of EP0095912A2 publication Critical patent/EP0095912A2/fr
Publication of EP0095912A3 publication Critical patent/EP0095912A3/en
Application granted granted Critical
Publication of EP0095912B1 publication Critical patent/EP0095912B1/fr
Expired 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/60—Folding or cutting crosswise

Definitions

  • the present invention relates to a device for mounting and accurately seating a perforating or cutoff blade along a cylinder such as might be used for partially or completely severing a web at a plurality of locations along its length.
  • Such devices are particularly useful in machines for continuous printing or collating of paper webs.
  • the blade be capable of removal, replacement and/or repositioning along the rotating blade cylinder. From time to time during the operation of the machine, it is necessary to remove the blade from the cylinder, for instance, when it may be desired to print a web without perforating or severing the same, or when replacement of the blade is necessary due to dulling or breakage of the blade.
  • a second requirement for such blade mounting arrangements is that the cutting edge of a perforating blade be capable of accurate seating against an anvil surface. Otherwise, an uneven perforation will result, with some sections of the perforation being too deep, or some sections being too shallow, or both. This produces variation in the tear strength along the perforation, with resultant high probability of jamming in subsequent printers or bursters.
  • a backup or anvil cylinder may be included for providing a hardened anvil surface, or insert, or in some cases a die, to cooperate with the sharpened edge of the properly seated blade in perforating the passing web as the web moves between the rotating blade cylinder and anvil or backup cylinder.
  • the blade is mounted to the rotating cylinder by clamping the blade into a recess or slot cut generally lengthwise into the cylinder periphery.
  • the recess is rectangular in cross section, and the blade may be clamped against one of the side faces of the recess, or against an intermediate supporting bar.
  • Several techniques are available, however, for providing proper seating of the cutting edge of the blade against the anvil surface.
  • a perforating blade when manufactured, it includes some variation in height from its base to its cutting edge, as well as a tendency to bow in a vertical direction.
  • One method for seating the blade is to use a blade which has been manufactured to very close tolerances with respect to both height and bow.
  • the cylinder is provided with a recess that has been machined also to very close tolerances with respect to a uniform and specific depth.
  • Seating of the blade is relatively simple, since the blade is loaded into the recess, with the base of the blade bottomed along the base of the recess, and is then clamped tightly in place.
  • a second technique in which a blade having very loose height and bow tolerance may be used.
  • the blade is inserted into the recess, but is not bottomed against the base of the recess, and is secured somewhat loosely along its length.
  • the blade is then seated against the anvil surface, through a procedure known as "crash in”.
  • This procedure consists of rotating the blade cylinder and anvil cylinder, with or without a web passing therebetween, at inching speed through one revolution.
  • the cutting edge of the blade is free to move under the seating force sufficiently into the recess, at whatever locations are necessary to obtain a uniform seating of the cutting edge against the anvil. While secured somewhat loosely, the blade must be nonetheless held tight enough to hold its seated position.
  • the apparatus is then stopped and the blade is securely clamped along its entire length to prevent slip within the recess when the apparatus is operated at higher speeds.
  • a third technique possessing some of the advantages and disadvantages of both techniques, utilizes a blade having close tolerance with respect to height only. While the blade is bottomed against the recess base, crash in is required to remove vertical bow from the blade.
  • a number of various devices for accurately securing a blade within a recess, suitable for holding the blade both for crash in and for clamping are known.
  • the blade may be placed against a side wall of the recess, and a bar inserted into the recess adjacent the blade.
  • a plurality of bolt members are threaded into holes in the bar, extending from the side of the bar to the recess side wall opposite the blade.
  • the bolt members are driven in a direction outwardly from the bar against the recess wall.
  • Driving of the bolt members forces the bar tightly against the blade, thereby clamping it in place.
  • the bolt members may be partially tightened, allowing the blade limited movement for seating against the anvil surface during crash in, and then the bolt members may be completely tightened for clamping.
  • a blade holding device in which a wedge bar is provided for clamping the blade into the cylinder recess.
  • the blade is placed against a side wall of the recess, and the wedge bar is provided with a vertical taper, i.e., in a radial direction ith respect to the cylinder.
  • a non-rectangular cross-sectional recess may be provided, or an intermediate member placed between the blade and the wedge bar and having a taper opposite the wedge bar may be provided, along with a plurality of bolts extending through the wedge bar and into the cylinder at the bottom of the recess.
  • the wedge bar By driving the bolts, the wedge bar is forced into the recess in a direction toward the axis of the cylinder, thereby securely clamping the blade into the recess.
  • Preloading springs may be provided to act on the wedge bar with a force sufficient to retain the blade during crash in while allowing limited movement of the blade within the recess for seating. Following seating, the bolts are tightened to firmly secure the blade.
  • the Schriber et al device By providing the preloading springs for supplying sufficient clamping force for seating of the blade, the Schriber et al device eliminates the need for the operator to manipulate the bolts during the crash in process. Additionally, by providing bolts that are driven radially with respect to the cylinder, rather than disposed within the recess, access to the bolts is facilitated. Nonetheless, the Schriber et al device utilizes a plurality of bolts to provide a relatively uniform clamping force on the blade. Moreover, since the bolts are disposed along the entire length of the wedge bar, the operator must reach along the full length of the cylinder during the clamping process. Thus, even with the Schriber et al blade holding device, the clamping process is both time-consuming and awkward to perform.
  • Each bolt extends into a threaded bore in an end of one of the wedge bars, such that by rotating the bolts, each bar may be moved in either direction along the cylinder recess.
  • the bolts are rotated such that the wedge bars are driven into the recess so as to wedge the blade into place.
  • Notches or other indicia are provided along the upper surface of one of the wedge bars and the cylinder surface, so that the relative movement of the bar in relation to the cylinder for aligning the blade may be easily determined.
  • the Richards et al device reduces the number of bolts which must be manipulated during the clamping process in comparison with the devices described above. It is indicated in the patent, however, that the primary purpose of the device is to enable the angle of the blade with respect to the direction of travel of the web to be somewhat adjustable, although the device seems better suited for adjusting the distance from the blade along the cylinder periphery to a next following blade. In either case, while such a feature may be desirable in compensating for an improperly machined cylinder and/or associated gears, it requires the operator of the device during the clamping process to ensure that the blade is mounted either precisely perpendicular to the web, or precisely to the required spacing from perforation to perforation or from separation to separation.
  • the Richards et al patent does not address the problem of holding the blade for seating during crash in, and in fact, shows the blade bottomed on the recess base.
  • the Richards device possesses several disadvantages that make it impractical for use with a blade that must be seated for uniform perforation.
  • a blade holding device for use with a cylinder in which the blade may be clamped in a relatively quick and simple manner.
  • Such a device should require manipulation of few parts during the clamping operation, and should not require the use of any special tools or special skills on the part of the operator.
  • the device should enable the blade to be secured loosely into the cylinder with uniform securing force, properly seated against an anvil surface, and then tightly clamped into place. Clamping force should be uniformly applied along the length of the blade.
  • the device should be relatively simple to manufacture, and should not require unreasonably tight manufacturing tolerances.
  • the present invention provides a novel arrangement for clamping a blade to a rotary cutter cylinder.
  • the blade is easily inserted into and held in place by the device such that the blade may move as necessary to seat against an anvil surface during crash in, the blade being held such that it will be retained in the seated position. Thereafter, the blade holding device can be tightened in order to secure the blade in the seated position.
  • the blade holding device is for use in conjunction with a cylinder having a longitudinal recess defined in the periphery of the cylinder parallel to the cylinder axis.
  • first and second wedge members that are fittable within the recess, each of the wedge members having an inner wedge face and an outer face.
  • Each of the wedge members is tapered in a direction longitudinally along the recess.
  • the wedge members are insertable within the recess such that the blade is disposed between the outer face of the first wedge member and one wall of the recess.
  • One of the wedge members is moved relative to the other, such that the blade is wedged between the first wedge member and the recess wall.
  • the blade is first secured sufficiently tight to allow seating of the blade against the anvil surface, the blade is seated during crash in, and then clamped securely.
  • At least one spring member is provided such that the spring members may be disposed adjacent the outer face of the first wedge member between the wedge member and the blade.
  • a plurality of spring members may be Belleville disc springs, although a spring member in the form of a corrugated metal strip or elastomeric strip, as well as other embodiments, may also be used.
  • the disc springs may be held in relative positions, and the holding means may be a strip constructed of a resilient material having a plurality of holes along the length thereof. The disc springs are mounted one each within each hole.
  • the first wedge member includes a relatively shallow channel defined along the length of its outer face, so that the resilient strip may be mounted along the channel whereby the disc springs may abut the perforating blade when the blade and first wedge member are inserted into the recess of the cylinder.
  • the spring members provide a wide range for relative positioning of the wedge members for crash in. Because the range of holding force exerted upon the blade for proper seating is relatively narrow, the spring members make application of the proper force easier, faster, and more precise than in previously known devices.
  • Spring members also allow a wider range of tolerance for the slot width, wedge member width and blade thickness, and produce more uniform crash in force along the entire length of the blade.
  • the relative movement of the wedge members within the cylinder recess may be performed by providing an end member mounted to one end of the cylinder adjacent the recess.
  • the end member includes an opening therein, through which a bolt is extended.
  • the bolt has at least one flange near its head, the flange being disposed on one side of the opening for retaining the bolt in a position relative to the end member.
  • the bolt is further engageable with one of the wedge members, so that by rotating the bolt, the wedge member may be moved relative to the cylinder, and hence relative to the other wedge member.
  • the bolt may be engageable with an end of the second wedge member, and the relative movement of the wedge members is performed by moving the second wedge member along the recess.
  • the first wedge member is captured between two end rings to prevent its movement along the recess. Additionally, at least a portion of the outer face of the first wedge member is roughened to increase the holding force on the blade or to prevent slippage of the blade within the recess.
  • a blade holding device for use with a perforating or cuttoff blade and a cylinder, wherein a pair of wedge members is provided with a means for effecting relative movement of the wedge members within a recess in the cylinder periphery to clamp the blade between one of the wedge members and a recess wall; to provide such a device wherein the blade may initially be secured sufficiently to allow seating against an anvil surface, and then clamped to secure the blade for perforation of a web; to provide such a device which exerts a uniform crash in or clamping force along the entire length of the blade; to provide such a device which is relatively quick and simple to operate; and to provide such a device which is relatively easy to manufacture and which may be used with cylinders having a standard configuration for the recess defined therein.
  • Fig. 1 shows a portion of a typical rotary cutter cylinder 10 to which may be mounted a blade 12 of any length up to and including the length of the cylinders.
  • Blade 12 is shown as a perforating blade, but may be a cutoff blade as well.
  • the cylinder 10 includes a longitudinal recess 14 defined along the periphery of cylinder 10.
  • Recess 14 is preferably rectangular in cross-section, and as seen in Fig. 6, includes a base 15 and opposed walls 16 and 18.
  • blade 12 may be inserted into recess 14 of cylinder 10 for mounting, although blade 12 is not bottomed against base 15, allowing space both for crash in and storage of blade 12 when not in use. Blade 12 is held in position by the blade holding device 20 of the present invention.
  • Blade holding device 20 includes a pair of wedge members 22 and 24.
  • Each wedge member 22 and 24 has an inner wedge face 23 and 25, respectively, and an outer face 26 and 27, respectively.
  • wedge members 22 and 24 are tapered in a direction longitudinally along the recess 14. Further, wedge members 22 and 24 are insertable into recess 14 of cylinder 10 with wedge faces 23 and 25 in mutual contact, such that the blade 12 may be held between outer face 26 of wedge member-22 and wall 16 of recess 14. Wedge member 24 is moved relative to wedge member 22, applying a wedging force against both walls 16 and 18 of recess 14, thereby clamping blade 12 into position.
  • Wedge member 24 is provided with a threaded bore 28 in one end thereof.
  • Bolt 29, engageable with bore 28 includes a head 30 and a pair of flanges 32 and 34.
  • An annular collar 36 attached to one end of cylinder 10 by a plurality of bolts 38 includes notch 40, communicating with recess 14 of cylinder 10.
  • Notch 40 of collar 36 includes a relatively shallow portion 42 having a groove 44 defined therein.
  • a retaining member 46 having a groove 48, is mounted to relatively shallow portion 42 by a pair of bolts 50.
  • Grooves 44 and 48 cooperate to define a hole, and bolt 29 is fittable within the hole such that flanges 32 and 34 are disposed on each side of the hole.
  • Grooves 44 and 48 are sized accordingly such that flanges 32 and 34 retain bolt 29 within the hole, but bolt 29 is freely rotatable within the hole.
  • bolt 29 may have a single flange, with the single flange and bolt head 30 cooperating at opposite ends of grooves 44 and 48 for retention of bolt 29 within the hole defined by grooves 44 and 48.
  • FIG. 3 illustrates the wedge members 22 and 24 wedged into recess 14 of cylinder 10.. Such that blade 12 is securely held between outer face 26 of wedge member 22 and wall 16 of slot 14.
  • head 30 of bolt 29 is gripped by an appropriate tool (not shown) and bolt 29 is rotated in the direction indicated by arrow 52 in Fig. 4.
  • bolt 29 and bore 28 are provided with left-handed threads, and bolt 29 may have multiple start threads for faster movement of bolt 29 along bore 28, and hence, faster operation of the blade holding device 20.
  • bolt 29 By rotating within threaded bore 28 of wedge member 24, bolt 29 . draws wedge member 24 in a direction toward collar 36, as indicated by arrow 53. As wedge member 24 is drawn toward collar 36, wedge members 22 and 24 no longer apply wedging force to the walls of recess 14, and blade 12 is released and may be removed.
  • wedge member 22 remains stationary within recess 14, retained by collar 36 and an annular end ring 54 mounted to the opposite end of cylinder 10 from collar 36.
  • each wedge member is provided with marks, notches or other indicia 55 to present a visual indication of their relative movement.
  • any appropriate solid lubricant may be applied to the wedge face 25 and outer face 27 of wedge member 24.
  • a relatively shallow channel 56 is defined along the length of the outer face 26 of wedge member 22, as seen in Fig. 1.
  • a plurality of Belleville disc springs 58 are disposed along channel 56, and are held in relative position by a rubber strip 60.
  • Rubber strip 60 includes a plurality of holes defined along its length, such that each spring 58 may be mounted within one of the holes and retained thereby. Springs 58 may be held into the holes of strip 60 either by cementing them in place, such as with a rubber cement, or molding the strip 60 about the springs 58 so that they are retained in place. Strip 60 is preferably mounted to channel 56 by a rubber cement material.
  • Surfaces 61 may be roughened or knurled to provide increased holding force, by friction, for the blade 12 to prevent its slippage within recess 14.
  • springs 58 for providing relative ease in positioning wedge member 24 for crash in of blade 12 may be seen by referring to Fig. 5, showing a plot of the load (force per unit length) placed upon the blade 12 by the blade holding device 20 as a function of the displacement of wedge member 24 along recess 14, and as a function of the compression of wedge members 22 and 24 and springs 58 across recess 14.
  • the values presented along the load axis of Fig. 5 are pertinent to blades and blade holding devices in general, independent of their length, and values presented along the compression axis are similarly independent of the angle formed between the wedge face 25 and outer face 27 of the wedge member 24.
  • Values presented along the displacement axis of Fig. 5, however, are dependent upon the wedge member angle, and specific values in Fig. 5 are based upon an exemplary angle of 1°. It will be nonetheless understood that the shapes and relationships of the curves presented are correct for any angle.
  • springs 58 When springs 58 are provided as illustrated generally in Fig. 1, the displacement of wedge member 24 produces the load values indicated by curve 70 in Fig. 5. Initially, only springs 58 actually contact blade 12, as seen in Fig. 7, and as wedge member 24 is moved, springs 58 compress against blade 12. Springs 58 have a significantly lower force constant (or, more properly here, a spring constant), approximately 95,000 lbs./in. 2 , than wedge members 22 and 24, and the initial portion of curve 70, indicated at 72, has a proportionately reduced slope.
  • springs 58 upon the operation of blade holding device 20 for applying crash in force to blade 12 may be appreciated by considering the crash in load range 64. To apply the proper load, wedge member 24 must be moved between approximately .14 and .28 inches, or within a range of .14 inch, as indicated at 77. Thus, a relatively broad range of positions is available for wedge member 24, making the use of indicia 55 much more practical and helpful. Since positioning of wedge member 24 is no longer so critical, no special tools or operator expertise is required for operating blade holding device 20.
  • portion 76 of curve 70 After springs 58 are compressed such that surfaces 61 of wedge member 22 contact blade 12, further displacement of wedge member 24 causes the load to increase as shown by portion 76 of curve 70. Since portion 76 has a significantly increased slope compared to portion 72, relatively little additional displacement is necessary to apply the final clamping load to blade 12.
  • any one or a combination of wedge members, blade or recess is such that any area along blade 12 is compressed outside this range, load applied will be outside the crash in range, seating may not be accurate, and the resulting perforation or severing may be uneven.
  • a number of alternative embodiments for the spring members may be used in place of springs 58 and rubber strip 60, each having the same operation as the embodiment just disclosed and producing a load-displacement curve of the same shape as curve 70.
  • a single corrugated metal strip 78 is provided, fittable within channel 56 of wedge member 22.
  • a continuous elastomeric strip 80 is used, mounted to channel 56 by a rubber cement material.
  • a series of slightly compressible rollers or balls may be placed between the wedge members 22 and 24.
  • spring members may be used that are characterized by a non-linear compression--oad relationship. Such an embodiment will produce a curve somewhat different from curve 70, in that the portion corresponding to portion 72 will not be linear, but will nonetheless result in expansion of the compression and displacement ranges for crash in, thereby obtaining the same advantages.
  • a still further alternative embodiment may be used in which the spring members are effectively "built-in" within wedge members 22 and 24.
  • Either of wedge members 22 or 24, or both may be provided with portions formed of a weaker steel or other metal, or may be provided with one or more cut-out sections along the length of wedge member 22 or 24, the cut-out sections being formed so that wedge member 22 or 24 remains as a unitary piece.
  • the effect of providing weakened portions or cut-out sections is to reduce the force constant of wedge members 22 and 24, with the result shown as curve 82 in Fig. 5.
  • Such an embodiment produces advantages approximately midway between those obtained through the wedge members with separate spring members and the wedge members alone.
  • weakened or cut-out portions may be included along the side walls of recess 14, particularly wall 18.
  • spring members such as springs 58 may be used, and the advantages thereof obtained, with embodiments for clamping a blade with one or more wedge members other than the preferred, two wedge-member embodiment disclosed herein.
  • a wedge member is provided having a taper in a direction radial with respect to the cylinder. The recess is cut to cooperate with the wedge member such that movement of the wedge member within the recess toward or away from the cylinder axis clamps or unclamps the blade.
  • the springs are provided between the wedge member and the blade, although a buffer plate may also be provided therebetween for facilitating retention of the springs and/or blade in position.
  • Ring 54 is attached to cylinder 10 by a plurality of screws 86 (only one shown) and is of a radial width less than the depth of recess 14.
  • a retaining pin 88 is mounted near the lower end of each of wedge members 22 and 24, such that when wedge members 22 and 24 are inserted into recess 14, retaining pins 88 extend from recess 14 under the ring 54.
  • retaining pins 88 cooperate with ring 54 to hold the wedge members in place.
  • a similar retaining pin 88 is provided at the opposite end of wedge member 22, and is inserted into a half-slot (not shown) defined within collar 36. It will be seen that no retaining pin is required for the opposite end of wedge member 24, due to its engagement with bolt 29.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP83303078A 1982-06-01 1983-05-27 Support pour lames Expired EP0095912B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US38430282A 1982-06-01 1982-06-01
US383865 1982-06-01
US06/383,865 US4475425A (en) 1982-06-01 1982-06-01 Blade holding device
US384302 1995-02-03

Publications (3)

Publication Number Publication Date
EP0095912A2 true EP0095912A2 (fr) 1983-12-07
EP0095912A3 EP0095912A3 (en) 1984-02-22
EP0095912B1 EP0095912B1 (fr) 1988-03-23

Family

ID=27010360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83303078A Expired EP0095912B1 (fr) 1982-06-01 1983-05-27 Support pour lames

Country Status (3)

Country Link
EP (1) EP0095912B1 (fr)
CA (1) CA1206374A (fr)
DE (1) DE3376058D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2619526A1 (fr) * 1987-08-19 1989-02-24 Moore Business Forms Inc Dispositif pour le faconnage d'une bande de matiere telle que du papier
EP0551812A1 (fr) * 1992-01-14 1993-07-21 Strömberg, Sven Arne Roland Dispositif de fixation pour des couteaux
GB2332165A (en) * 1997-12-13 1999-06-16 T & S Engineering Company Blade securing apparatus for a cutting roller
EP0879680A3 (fr) * 1997-04-22 1999-11-03 Heinrich Prof. Dr. Ing. Feichtinger Dispositif de fixation des couteaux dans un rotor de coupe
CN109015854A (zh) * 2018-08-14 2018-12-18 杭州中为光电技术有限公司 修边机刀头浮动机构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1137216A (en) * 1914-05-02 1915-04-27 Carl J Klingborg Cutter-head.
US2832411A (en) * 1954-12-13 1958-04-29 Bonnar Vawter Inc Perforating blade holding means
US3709077A (en) * 1971-03-01 1973-01-09 Bretting C Mfg Co Inc Cut-off device
US3793918A (en) * 1971-10-12 1974-02-26 H Huffman Cross perforating blade lock
US4131047A (en) * 1977-03-28 1978-12-26 Harris Corporation Rotary knife mounting
DE3274077D1 (en) * 1981-08-22 1986-12-11 Wadkin Public Ltd Co Rotary cutter heads

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2619526A1 (fr) * 1987-08-19 1989-02-24 Moore Business Forms Inc Dispositif pour le faconnage d'une bande de matiere telle que du papier
EP0551812A1 (fr) * 1992-01-14 1993-07-21 Strömberg, Sven Arne Roland Dispositif de fixation pour des couteaux
US5357836A (en) * 1992-01-14 1994-10-25 Stroemberg S A Roland Device for retaining knife blades
EP0879680A3 (fr) * 1997-04-22 1999-11-03 Heinrich Prof. Dr. Ing. Feichtinger Dispositif de fixation des couteaux dans un rotor de coupe
GB2332165A (en) * 1997-12-13 1999-06-16 T & S Engineering Company Blade securing apparatus for a cutting roller
GB2332165B (en) * 1997-12-13 2001-09-05 T & S Engineering Company Device and method for securing blades
CN109015854A (zh) * 2018-08-14 2018-12-18 杭州中为光电技术有限公司 修边机刀头浮动机构
CN109015854B (zh) * 2018-08-14 2023-09-05 杭州中为光电技术有限公司 修边机刀头浮动机构

Also Published As

Publication number Publication date
EP0095912B1 (fr) 1988-03-23
EP0095912A3 (en) 1984-02-22
CA1206374A (fr) 1986-06-24
DE3376058D1 (en) 1988-04-28

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