US3215178A - Knife mounting for cigarette rod cutters - Google Patents

Knife mounting for cigarette rod cutters Download PDF

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Publication number
US3215178A
US3215178A US201586A US20158662A US3215178A US 3215178 A US3215178 A US 3215178A US 201586 A US201586 A US 201586A US 20158662 A US20158662 A US 20158662A US 3215178 A US3215178 A US 3215178A
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United States
Prior art keywords
knife
abutment
holder
knife blade
shaft
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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US201586A
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English (en)
Inventor
Bardenhagen Dietrich
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Koerber AG
Original Assignee
Hauni Werke Koerber and Co KG
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/28—Cutting-off the tobacco rod
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9464—For rotary tool
    • Y10T83/9469—Adjustable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9464—For rotary tool
    • Y10T83/9469—Adjustable
    • Y10T83/9471—Rectilinearly

Definitions

  • the present invention relates to a knife support for cutting devices in rod making machines, particularly in cigarette rod manufacturing machines, whereby the term rod making machinesis intended to encompass any rod making machines on which are made rods for cigarettes, cigars, cigarillos, short cigars with and without mouthpiece, rods for filling smoking tobacco packages, as well as rods for mouthpiece parts thereof with and without filter material.
  • This term is also applicable to combined rods composed of several rod parts of different types, whereby the combined parts may also be of rod parts of the same type but of different filler material, for example, rods for making multiple filter fillers.
  • cutting mechanisms are used for cutting rod pieces which consist of a knife holder fastened to a rotating shaft, of a knife or cutting blade displaceable in the knife holder, and of an abutment pressure means which clamps or secures the knife blade within the knife holder.
  • the required abutment pressure is extremely large because the centrifugal force of the knife encreases as the square of the speed of rotation. It has been attempted to greatly strengthen the springs of the prior art abutment pressure means; however, this is possible only up to a certain rotational speed because therebeyond, the large abutment pressure of the necessary springs would bend the entire knife holder during exchange of the knife. For it is necessary during such exchange to push away the springs, and the knife holder then has to serve as counter bearing. Additionally, the large weight of the necessary springs and the corresponding rigidity of the knife support required as a result thereof, in turn, entail an unnecessarily large weight of all the rotating parts of the cutting mechanism. Since these parts carry out a tumbling movement, there will occur correspondingly large and extremely undesired bearing forces in such cutting mechanism as proposed heretofore in the prior art.
  • the required large abutment pressure at relatively high rotational speeds is produced in the cutting mechanism according to the present invention by moving the abutment pressure means under the influence of the centrifugal force in the direction toward the knife blade to thereby clamp the latter ever more strongly.
  • the abutment pressure means is pivotally connected to the free end of a lever whose pivot bearing, rotatable at the knife holder, is located, in the radial direction, between the axis of rotation of the cutting mechanism and the abutment pressure point on the side of the knife holder opposite the abutment pressure point.
  • an additional movable mass producing the centrifugal force and transmitting means which transmit the centrifugal force effect of this additional mass to the abut- .ment pressure means.
  • a simple arrangement of the last-mentioned embodiment consists of an angularly-bent, two-armed lever, to one end of which is secured the abutment pressure means and to the other end of which is secured the additional mass, whereby the arm of the lever carrying the additional mass is so arranged with respect to the plane of rotation of the axis of rotation that there results a centrifugal force moment which presses the abutment pressure means against the knife blade.
  • the present invention is particularly suitable for knife mountings or knife supports, the knife holders of which are provided with a radial slot for receiving the knife blade and with apertures which are directed toward the long sides of the slot and through which extend pressure rollers abutting against the knife blade, whereby the one of these rollers, namely the driven roller, is rotatable in a form-locking manner, and the other roller is freely rotatable and adapted to be pressed against the knife blade.
  • the support for the freely rotatable roller is, according to the present invention, displaceably arranged within a guide extending obliquely toward the slot the end of which opposite the shaft of rotation of the cutting mechanism approaches the slot.
  • the guide is constructed in a preferred embodiment according to the present invention as a slotted guide in which is displaceable the shaft of the abutment or pres sure roller.
  • resilient means engage the shaft of the abutment or pressure roller and press the latter in the direction toward the slot.
  • the resilient means preferably consist of a pressure spring which engages, at a point between two pressure rollers arranged at a distance from each other, the shaft of the pressure rollers and is supported in the guide constructed as longitudinal slot.
  • Still another object of the present invention resides in the provision of a knife holder so constructed and arranged as to securely hold the knife blade in position even at high 3 rotational speeds yet enabling greatly facilitated exchange of the knife blades.
  • a further object of the present invention resides in the provision of a knife holder construction provided with abutment pressure means to hold the knife blade securely in position during high rotational speeds which obviates the need for very strong springs as well as for sturdy holder parts to withstand the bending forces that may occur within the holder, particularly during exchange of the knife blade.
  • Still a further object of the present invention resides in the provision of a knife holder for supporting and holding a knife blade, forming part of a cutting mechanism used in rod making machines, in which the knife blade is held securely in position during rotation of the cutter mechanism substantailly exclusively by components of centrifugal forces produced within the rotating knife holder itself.
  • Another object of the present invention resides in the provision of an improved support means for a knife blade of a cutting mechanism of the type described hereinabove in which the weight of the parts is kept at a reasonably low magnitude to thereby minimize excessive forces, particularly in the bearings thereof.
  • FIGURE 1 is a partial perspective View of a knife holder having a pivotal abutment or pressure roller and an additional mass engaging the pivot level of the pressure roller at a point above the pressure roller;
  • FIGURE 2 is a partial perspective View of a modified embodiment of a knife holder having a knife blade and a pressure roller displaceable obliquely to the holder;
  • FIGURE 3 is a partial perspective view of a further modified embodiment of a knife holder having a knife blade and a pivotal pressure roller;
  • FIGURE 4 is a partial perspective view of another embodiment of a knife holder having a pivotal pressure roller and an additional mass engaging the pivot or swinging lever at a point below the pressure roller;
  • FIGURE 5 is a partial perspective view of a further embodiment of a knife holder having a driving roller pivotally arranged at a knee-type or toggle lever and an additional mass on the joint of the knee-type lever;
  • FIGURE 6 is a perspective view of a cutting mechanism of a cigarette rod making machine with a cutting tube coordinated thereto;
  • FIGURE 7 is a partial perspective view, on an enlarged scale, of a part of the knife holder of the cutting mechanism shown in FIGURE 6;
  • FIGURE 8 is a side elevational view of the knife holder of FIGURES 6 and 7, taken in the direction of the arrow A in FIGURE 6, and
  • FIGURES 9, 10 and 11 are diagrams corresponding to the abutment pressure means shown in the embodiment of FIGURES 6 through 8.
  • reference numeral 1 designates in this figure the knife holder which is fastened in any suitable manner to a drive means including a rotating shaft 2 driven at relatively high speed.
  • the front part of the knife holder 1 is provided with a U-shaped yoke 3 providing a slot 4 in which is displaceable the knife blade 5 so that one side of the knife blade is adjacent to the vertical portion of the holder 1.
  • Projections 6 are secured above the U-shaped yoke 3 along the narrow sides of the knife holder 1, and a pivot shaft 8 is inserted into the bores 7 provided in the projections 6.
  • a bow-shaped angle lever or bellcrank 9 is swingingly disposed on the pivot shaft 8.
  • An abutment or pressure roller 11 is rotatably supported in the ends of the leg portions 10 of the bellcrank 9.
  • a pin 12 is secured to the web portion of bellcrank 9, and a block 13 is slid over pin 12 and clamped in position by means of a set screw 14.
  • the parts 914 together constitute a pressing means for the knife blade 5 and the roller 11 of this pressing means abuts against the exposed side of the blade.
  • the shaft 8 and the projections 6 form a mounting means for the pressing means 9-14 and are carried by the shift 2 through the intermediary of the holder 1.
  • the knife holder 1 When the rotary shaft 2 is driven, the knife holder 1 is also rotated at a high speed about the axis of the shaft 2. By reason of this rotation, the block 13 is pressed in the direction of the arrow '15 due to the centrifugal force, whereby the abutment or pressure roller 11 is pressed against the right-hand side of the knife blade 5 in the direction of the arr-ow 16.
  • the knife blade 5 which seeks to carry out a movement in the direction of the arrow 22 with an increase of the rotary speed due to the centrifugal force, is thus prevented from any displacement by the correspondingly increased abutment pressure of the pressure roller 11 which presses the left-hand side of the blade against the adjacent portion of the holder, so that the blade is clamped between the holder and the roller 11.
  • FIGURES 25 which illustrate different embodiments, the parts corresponding to those illustrated in FIGURE 1 have been included to the extent they are mentioned in the respective descriptive text.
  • pressure rollers 17 together with the common shaft 18 thereof are supported at an inclined control surface 19 of a guide means 20 fastened on the knife holder 1.
  • This guide means 20 is secured to the U-shaped yoke 3 of the knife holder 1.
  • the shaft 18 is pressed radially outwardly in the direction of the arrow 21 due to the centrifugal force.
  • the shaft rolls along the guide surface 19 whereby the rollers 17 are pressed against the knife blade 5 with great force and thereby prevent movement thereof in the direction of the centrifugal force indicated by arrow 22.
  • the knife support according to FIGURE 3 consists of the pressure roller 11 which is rotatable about a shaft 23 which, in turn, is secured to the ends of levers 24 and 25.
  • the free ends of these levers 24 and 25 only the free end of lever 24 being shown in the drawing-are pivotable about pivot bolts 26 which are secured in projections 27 of the knife holder 1.
  • the pressure roller 11 is rotatable on a shaft 23 which is fastened in the arms 29 and 30 of bellcranks 31 and 32 the other arms of whichonly arm 35 being visible in FIGURE 4 engage an additional block 36.
  • the bellcranks 31 and 32 are pivotal ly supported at the apices thereof about pivot bolts 33 and 34.
  • the block 36 is pressed in the direction of the arrow 37 due to the centrifugal force.
  • the pressure roller 11 exerts an abutment pressure in the direction of the arrow 38 on the knife blade 5 by means of bellcranks 31 and 32.
  • the embodiment of the knife support according to FIG- URE 5 is as follows:
  • the pressure roller 11 is pivotally supported about a shaft 23 which is located at the free ends of the two levers-only lever 39 being visible in FIGURE 5 of the drawing-of two toggle or knee type joints generally designated by reference numerals 40 and 41.
  • the other levers 42 and 43 of the knee-type joints 40 and 41 are pivotally supported about a pivot shaft 45 with the ends thereof opposite from the knee-type joint shaft 44, and the pivot shaft 45 is supported in base plates 46 and 47.
  • the base plates 46 and 47 constitute the two leg portions of the knife holder 1 which is U-shaped in this particular area.
  • a block 48 is mounted on the knee-type joint shaft 44.
  • abutment pressure means will be pressed more firmly against the knife blade 5 by the centrifugal force with an increase in the rotative speed of the knife holder 1.
  • a pressure plate may also be used in the embodiments of FIGURES 1 and 3-5, which is pivotal about the shaft 23.
  • abutment pressure means when using a pressure plate, one or two obliquely extending parallel guide means corresponding to the guide means 20, and guide elements, for example, rotatable rollers fastened to the pressure plate, are guided in such obliquely extending guide means.
  • FIG- URES 6 through 8 resemble that of FIGURE 2.
  • FIGURE 6 shows a cutting mechanism of a cigarette rod making machine in which the rotary shaft 2 (FIG- URE 1) is shown in a dotted line.
  • the cutting mechanism consists essentially of a drive housing 51 to which is secured a grinding wheel mounting 52 provided with a grinding wheel or disk 53 and a honing disc 53a.
  • the rotary shaft 2 is rotatably mounted in this drive housing 51 and is driven through a bevel gear 54 from a drive shaft 55.
  • a knife carrier or knife support 56 is mounted on the rotary shaft 2, and secured to the flattened portion 57 thereof is a knife holder 58 which is pivotal about an axis 59, shown in dash lines.
  • the knife holder 58 is pivoted by means of a Cardan or universal joint (not shown) whose Cardan shaft is indicated by reference numeral 60, and more particularly, the pivot action takes place at the point of intersection of the axis of rotation of rotary shaft 2, of the pivot axis 59 and of the hollow shaft 60 of the Cardan or universal joint which shaft 60 is rotatable in an adjustable bearing 61.
  • the knife holder 58 is provided with a receiving portion 62 having a groove 62a (FIGURES 7 and 8) and with a counter plate 63 with a groove 63a (FIGURES 7 and 8).
  • the knife blade 5 is displaceable within the slot formed by complementary grooves 62:: and 63a.
  • An inclined guide means generally designated by reference numeral 64 for the pressure rollers 65 is secured to the counter-plate 63.
  • a cutting tube 80 is adapted to move to and fro, in a manner known per se, below the cutting mechanism so far described.
  • the inclined guide means 64 consists, according to FIG- URE 7, of a lug portion 66 terminating in a U-shaped part 67 into the two sides 68 of which are milled longitudinal slots 69 in alignment with one another.
  • a shaft 70 common to rollers 65 is displaceably supported in slots 69.
  • Pressure springs 71 press the rollers 65 through apertures 72 provided in the counter plate 63 and thereby retain the rollers 65 in abutment with the knife blade 5.
  • the receiving portion 62 is provided with bearing projections 74 (FIGURE 8) into which engages a shaft 75 of adjusting rollers 76, which extend through apertures 73 in the receiving portion 62.
  • the adjusting rollers 76 are adjusted over a worm drive 77 by means of an adjusting shaft 78.
  • the control impulse is imparted to the adjusting shaft 78 by actuation of the adjusting knob 79 (FIGURE 6), transmitted through any conventional adjusting transmission (not shown).
  • the centrifugal force F (FIGURE 9) which is produced by rotation of the cutting mechanism and which is transmitted to the pressure rollers 65, produces two forces, namely 1. the abutment pressure N of the pressure rollers 65 at right angle to the knife blade 5, and
  • the pressure rollers 65 act on the knife blade 5 in a force-locking manner so that there is produced the effective frictional force R between the knife blade 5 and the form-lockingly driven adjusting rollers 176.
  • a value 0.1 was determined for ,u. (adjusting roller 76/knife blade 5).
  • the product Np' u always has to be greater than F i.e., greater than the centrifugal force produced by the knife blade 5.
  • a knife mounting in cutting mechanisms for rod making machines provided with a rotatably supported shaft, having an axis of rotation, comprising knife holder means secured to said shaft, knife blade means displaceably arranged at said knife holder means, and abutment means for clampingly securing said knife blade means in said knife holder means, and means operatively connecting said abutment means with said knife holder means including lever means, first pivot means pivotally supporting said abutment means on said lever means near one of the ends thereof, and second pivot means pivotally securing said lever means near the other of the ends thereof at said knife holder means, said abutment means being movable under the influence of the centrifugal force in the direction toward said knife blade means to thereby increasingly clamp the latter with increasing centrifugal forces.
  • a knife mounting in cutting mechanisms for rod making machines provided with a rotatably supported shaft having an axis of rotation, comprising knife holder means secured to said shaft, knife blade means displaceably arranged at said knife holder means, and abutment means for clampingly securing said knife blade means in said knife holder means, and means operatively connecting said abutment means with said knife holder means including lever means, first pivot means pivotally supporting said abutment means on said lever means near one of the ends thereof, and second pivot means pivotally securing said lever means near the other of the ends thereof at said knife holder means, said second pivot means being located between said axis of rotation and the point of abutment contact of said abutment means with said knife blade means on the side of said knife holder means opposite said point of abutment contact, said abutment means being movable under the influence of the centrifugal force in the direction toward said knife blade means to thereby increasingly clamp the latter with increasing centrifugal forces.
  • a knife mounting in cutting mechanisms for rod making machines provided with a rotatably supported shaft having an axis of rotation, comprising knife holder means secured to said shaft, knife blade means displaceably arranged at said knife holder means, and abutment means for clampingly securing said knife blade means in said knife holder means, and means operatively connecting said abutment means with said knife holder means including lever means, first pivot means pivotally supporting said abutment means on said lever means near one of the ends thereof, and second pivot means pivotally securing said lever means near the other of the ends thereof at said knife holder means, said second pivot means being located between said axis of rotation and the point of abutment contact of said abutment means with said knife blade means on the side of said knife holder means opposite said point of abutment contact, said abutment means being movable under the influence of the centrifugal force obliquely in the direction toward said knife blade means to thereby increasingly clamp the latter with increasing centrifugal forces, and said centri
  • a knife mounting in cutting mechanisms for rod making machines provided with a rotatably supported shaft having an axis of rotation, comprising knife holder means secured to said shaft, knife blade means displaceably arranged at said knife holder means, and abutment means for clampingly securing said knife blade means in said knife holder means, and means operatively connecting said abutment mean swith said knife holder means including lever means, first pivot means pivotally supporting said abutment means on said lever means near one of the ends thereof, and second pivot means pivotally securing said lever means near the other of the ends thereof at said knife holder means, said abutment means being movable under the influence of the centrifugal force obliquely in the direction toward said knife blade means to thereby increasingly clamp the latter with increasing centrifugal forces, and said centrifugal force being produced by the mass of said abutment means itself.
  • a knife mounting in cutting mechanisms for rod making machines having a rotatably supported shaft comprising knife holder means secured at said shaft, knife blade means displaceably arranged at said holder means, abutment means for clampingly securing said knife blade means in said knife holder means, and means for displacing said abutment means in the clamping direction toward said knife blade means under the influence of the centrifugal force to thereby increasingly clamp said knife blade means with increasing centrifugal forces including a separte mass subjected to the influence of centrifugal force and transmitting means effectively transmitting the centrifugal force effect of said additional mass to said abutment means, said transmitting means including a two-armed lever subtending an angle between the two arm portions thereof, said abutment means being secured near one end of said lever and said additional mass near the other end thereof, the arm portion of said lever supporting said additional mass being so arranged in relation to the axis of rotation of said rotatably supported shaft that a centrifugal moment is produced seeking to press said
  • a knife mounting in cutting mechanisms for rod making machines having a rotatably supported shaft comprising knife holder means secured at said shaft, knife blade means displaceably arranged at said holder means, abutment means for clampingly securing said knife blade means in said knife holder means, and means for displacing said abutment means in the clamping direction toward said knife blade means under the influence of the centrifugal force to thereby increasingly clamp said knife blade means with increasing centrifugal forces including a separate mass subjected to the influence of centrifugal force and transmitting means effectively transmitting the centrifugal force effect of said additional mass to said abutment means, said transmitting means including knee-type lever means having two lever elements pivotally connected with each other near one end of each of said lever elements, said additional mass being supported at said last-mentioned pivotal connection, and the other end of one of said lever elements being pivotally supported in said knife holder means and the other end of the other lever element supporting said abutment means.
  • a rotatable knife mounting for a knife blade subjected to relatively high rotational speeds comprising support means provided with a radial slot for receiving therein the knife blade, said support means being provided with apertures, abutment roller means for said knife blade which extend through said apertures, means for formlockingly pressing one of said abutment roller means against the knife blade and means for force-lockingly pressing the other abutment roller means against the knife blade, said other roller means being freely rotatable and provided with a shaft portion, and inclined guide means for said shaft portion extending at an inclination toward said slot, the end of said guide means which is disposed opposite the axis of rotation of the rotatable knife mounting approaching said slot.
  • a rotatable knife mounting for a knife blade subjected to relatively high rotational speeds comprising support means provided with a radial slot for receiving therein the knife blade, said support means having relatively narrow and Wide sides and being additionally provided with apertures in said wide sides, abutment roller means for said knife blade which extend through said apertures, means for form-lockingly pressing one of said abutment roller means against the knife blade and means for forcelockingly pressing the other abutment roller means against the knife blade, said other roller means being freely rotatable and provided with a shaft portion, and inclined guide means for said shaft portion extending at an inclination toward said slot, the end of said guide means which is disposed opposite the axis of rotation of the rotatable knife mounting approaching said slot.
  • a rotatable knife mounting for a knife blade subjected to relatively high rotational speeds comprising support means provided with a radial slot for receiving therein the knife blade, said support means having relatively narrow and Wide sides and being additionally provided with apertures in said wide sides, abutment roller means for said knife blade which extend through said apertures, means for form-lockingly pressing one of said abutment roller means against the knife blade and means for forcelockingly pressing the other abutment roller means against the knife blade, said other roller means being freely rotatable and provided with a shaft portion, and inclined guide means constructed as sloted guide for displaceably receiving therein said shaft portion, said slotted guide extending at an inclination toward said first-mentioned slot, the end of said guide means which is disposed opposite the axis of rotation of the rotatable knife mounting approaching said slot.
  • a rotatable knife mounting for a knife blade sub jected to relatively high rotational speeds comprising support means provided with a radial slot for receiving therein the knife blade, said support means having relatively narrow and wide sides and being additionally provided with apertures in said wide sides, abutment roller means for said knife blade which extend through said apertures, means for form-lockingly pressing one of said abutment roller means against the knife blade and means for forcelockingly pressing the other abutment roller means against the knife blade, said other holler means being freely rotatable and provided with a shaft portion, and inclined guide means constructed as slotted guide for displaceably receiving therein said shaft portion, said slotted guide extending at an inclination toward said first-mentioned slot, the end of said guide means which is disposed opposite the axis of rotation of the rotatable knife mounting approaching said slot, and resilient means acting on said shaft portion and seeking to press said other abutment roller means in the direction toward said first-mentioned slot.
  • a rotatable knife mounting for a knife blade subjected to relatively high rotational speeds comprising support means provided with a radial slot for receiving therein the knife blade, said support means having relatively narrow and wide sides and being additionally provided with apertures in said wide sides, abutment roller means for said knife blade which extend through said apertures, means for form-lockingly pressing one of said abutment roller means against the knife blade and means for forcelockingly pressing the other abutment roller means against the knife blade, said other roller means being freely rotatable and provided with a shaft portion, and inclined guide means constructed as slotted guide for displaceably receiving therein said shaft portion, said slotted guide extending at an inclination toward said first-mentioned slot, the end of said guide means which is disposed opposite the axis of rotation of the rotatable knife mounting approaching said slot, and resilient means acting on said shaft portion and seeking to press said other abutment roller means in the direction toward said first-mentioned slot, said resilient means consisting of a compression spring
  • a rotatable knife mounting for a knife blade subjected to relatively high rotational speeds comprising support means provided with a radial slot for receiving therein the knife blade, said support means being provided with apertures, abutment roller means for said knife blade which extend through said apertures, means for formlockingly pressing one of said abutment roller means against the knife blade and means for force-lockingly pressing the other abutment roller means against the knife blade, said other roller means being freely rotatable and provided with a shaft portion, and inclined guide means constructed as slotted guide for displaceably receiving therein said shaft portion, said slotted guide extending at an inclination toward said first-mentioned slot, the end of said guide means which is disposed opposite the axis of rotation of the rotatable knife mounting approaching said slot, and resilient means acting on said shaft portion and seeking to press said other abutment roller means in the direction toward said first-mentioned slot.
  • a knife mounting for cutting mechanisms of rod making machines comprising rotary drive means arranged to rotate about a predetermined axis; knife means having a first side and a second side; holder means connected for rotation with said drive means and having a portion adjacent to one side of said knife means; pressing means adjacent to the other side of said knife means; and mounting means for said pressing means, said mounting means being carried by said drive means for rotation at the speed of said holder means and said pressing means being movable toward said portion of said holder means by the action of centrifugal force when said mounting means rotates with said holder means so that said knife means is clamped between said holder means and said pressing means with a force which increases with increasing rotational speed of said drive means.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
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US201586A 1961-06-16 1962-06-11 Knife mounting for cigarette rod cutters Expired - Lifetime US3215178A (en)

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Application Number Priority Date Filing Date Title
DEH42880A DE1157524B (de) 1961-06-16 1961-06-16 Messerhalterung an Schneidvorrichtungen in Strangmaschinen, insbesondere Zigarettenstrangmaschinen

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Cited By (2)

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US5050471A (en) * 1988-10-17 1991-09-24 Korber Ag Apparatus for supporting and guiding cigarette rods and the like
EP2338358A1 (de) * 2009-12-23 2011-06-29 Hauni Maschinenbau AG Schneidvorrichtung und Schneidmesser zum Schneiden von stabförmigen Produkten der Tabak verarbeitenden Industrie

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CS180443B1 (en) * 1976-04-05 1977-12-30 Karel Petru Equipment used for automatic displacement of knives of cutters by machines for cigarette production
IT1189214B (it) * 1982-02-02 1988-01-28 Gd Spa Dispositivo di taglio per bachi continui di sigaretta
US5941148A (en) * 1998-01-16 1999-08-24 Tidland Corporation Automatic slitter blade sharpener
DE102009041776A1 (de) * 2009-09-15 2011-03-24 Hauni Maschinenbau Ag Messerträger für eine Schneidvorrichtung in Strangmaschinen der Tabak verarbeitenden Industrie
CN111975832B (zh) * 2020-08-28 2025-08-22 重庆中烟工业有限责任公司 一种滑动压平卷烟包装纸取样装置

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US1664050A (en) * 1926-08-21 1928-03-27 American Mach & Foundry Cigarette-machine cut-off
US1914756A (en) * 1931-10-27 1933-06-20 Muller J C & Co Cutting apparatus for cigarette making machines
US2112396A (en) * 1936-04-18 1938-03-29 Bundy Tubing Co Cut-off machine

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DE467715C (de) * 1926-01-27 1928-10-30 Muller J C & Co Messertraegerkopf fuer Strangzigarettenmaschinen
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DE562587C (de) * 1931-10-28 1932-10-27 Muller J C & Co Schneidvorrichtung fuer Strangzigarettenmaschinen
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US5050471A (en) * 1988-10-17 1991-09-24 Korber Ag Apparatus for supporting and guiding cigarette rods and the like
EP2338358A1 (de) * 2009-12-23 2011-06-29 Hauni Maschinenbau AG Schneidvorrichtung und Schneidmesser zum Schneiden von stabförmigen Produkten der Tabak verarbeitenden Industrie

Also Published As

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GB945662A (en) 1964-01-08
DE1157524B (de) 1963-11-14

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