US20060065033A1 - Embossing unit - Google Patents

Embossing unit Download PDF

Info

Publication number
US20060065033A1
US20060065033A1 US11/199,334 US19933405A US2006065033A1 US 20060065033 A1 US20060065033 A1 US 20060065033A1 US 19933405 A US19933405 A US 19933405A US 2006065033 A1 US2006065033 A1 US 2006065033A1
Authority
US
United States
Prior art keywords
embossing
unit
axis
rotation
oscillating
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.)
Abandoned
Application number
US11/199,334
Other languages
English (en)
Inventor
Gilberto Spirito
Alessandro Minarelli
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.)
GD SpA
Original Assignee
GD SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GD SpA filed Critical GD SpA
Assigned to G.D. SOCIETA' PER AZIONI reassignment G.D. SOCIETA' PER AZIONI ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MINARELLI, ALESSANDRO, SPIRITO, GILBERTO
Publication of US20060065033A1 publication Critical patent/US20060065033A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0707—Embossing by tools working continuously
    • B31F2201/0715—The tools being rollers
    • B31F2201/0753—Roller supporting, positioning, driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0782—Layout of the complete embossing machine, of the embossing line

Definitions

  • the present invention relates to an embossing unit.
  • the present invention may be used to advantage for embossing strips (or sheets) of packing material (e.g. aluminium or foil or other materials) in the tobacco industry, to which the following description refers purely by way of example.
  • packing material e.g. aluminium or foil or other materials
  • the present invention relates to an embossing unit of the type comprising a first and second embossing roller counter-rotating respectively about a first and second axis of rotation defining a plane, the embossing rollers being tangent to each other along a pitch line lying in said plane; and a push assembly for pressing the embossing rollers against each other to grip, in use, the sheet material for embossing between the embossing rollers with a given compression force; at least one of the axes of rotation being an oscillating axis oscillating about a third axis perpendicular to said plane and defining, in said plane, a centre of rotation.
  • one of the two embossing rollers is normally a drive roller mounted to rotate about a fixed axis of rotation
  • the other embossing roller is normally a driven roller, which is mounted for rotation on a support, oscillates about a fixed pivot or hinge, and is subjected to said compression force which necessarily passes through the hinge axis.
  • the fixed hinge is normally located as close as possible to the axis of the driven embossing roller and, therefore necessarily, on the opposite side of the driven embossing roller to the drive embossing roller.
  • the system being unable to rebalance itself, assumes an improper position, which results in creasing of the work strip and/or in uneven embossing caused by the difference in compression to which the strip is subjected along the pitch line of tangency.
  • the structure is normally subjected to a number of intricate adjustments designed to restrict the oscillation range of the driven roller to a narrow stable “region”, in which the elastic reaction of the work material is sufficient to compensate the negative effects induced by any anomaly in the original balance of the system.
  • the structure could be modified so that the fixed hinge is located on the opposite side of the drive embossing roller to the driven embossing roller.
  • the driven embossing roller would theoretically come close to the condition of a “suspended” body, thus resulting in an intrinsically stable system.
  • the distance between the fixed hinge and the axis of the driven embossing roller would result in unacceptable axial displacement of the driven embossing roller in response to even relatively minor oscillation of the driven embossing roller about the fixed hinge.
  • rebalancing again depends entirely on the elastic reaction of the work material.
  • FIG. 1 shows a schematic, partly sectioned, functional vies of a first preferred embodiment of the embossing unit according to the present invention
  • FIG. 2 shows a schematic, partly sectioned, functional vies of a second preferred embodiment of the embossing unit according to the present invention
  • FIGS. 3 and 4 show operating graphs of the FIGS. 1 and 2 embossing units respectively.
  • Number 1 in FIGS. 1 and 2 indicates as a whole an embossing unit for embossing a continuous strip (or a sheet) 2 of packing material (normally a strip or sheet of foil).
  • Embossing unit 1 comprises two known embossing rollers 3 and 4 , which are fitted to a frame 5 to rotate about respective axes 6 and 7 , and have respective cylindrical outer surfaces having respective numbers of tips (not shown) meshing along a pitch line 8 of contact coplanar with axes 6 and 7 of embossing rollers 3 and 4 .
  • embossing roller 3 is a drive roller fitted to a respective shaft 9 , which is coaxial with axis 6 , is fitted to frame 5 with the interposition of bearings 10 , and is connected angularly to an output shaft (not shown) of a known motor (not shown), fixed to frame 5 to receive a given drive torque from the motor.
  • Embossing roller 4 is fitted in rotary manner, with the interposition of internal bearings (not shown), to a shaft 11 coaxial with axis 7 and fitted in angularly fixed manner to a supporting unit 12 , and is rotated by embossing roller 3 via a gear transmission comprising a gear 13 fitted to shaft 9 , and a gear 14 coaxial with axis 7 and integral with embossing roller 4 .
  • Supporting unit 12 allows embossing roller 4 to oscillate about an instantaneous centre of rotation or hinge C—in the example shown, a virtual hinge—having an axis 15 perpendicular to, and movable transversely in, a fixed plane defined by axes 6 and 7 .
  • Supporting unit 12 is interposed between embossing roller 4 and a push assembly 16 , which in turn is interposed between supporting unit 12 and frame 5 , and transmits to embossing roller 4 a compression force F passing at all times through instantaneous centre of rotation or hinge C and directed onto embossing roller 3 in a direction substantially perpendicular to axis 6 to grip strip 2 between embossing rollers 3 and 4 .
  • axes 6 and 7 are parallel to each other and perpendicular to a reference axis 17 through the centre line of embossing rollers 3 and 4 and, in use, through the centre line of work strip 2 between embossing rollers 3 and 4 .
  • Supporting unit 12 comprises a U-shaped fork 18 defined by a cross member 19 , located on the opposite side of embossing roller 4 to embossing roller 3 , and by two arms 20 perpendicular to cross member 19 and located on opposite sides of embossing roller 4 and symmetrically with respect to reference axis 17 .
  • supporting unit 12 is an articulated unit defined by an articulated quadrilateral whose frame is defined by fork 18 , which is fitted to frame 5 to move towards drive embossing roller 3 perpendicularly to axis 6 and in the direction of compression force F, and with cross member 19 positioned parallel to axis 6 .
  • the articulated quadrilateral also comprises a cross member defined by shaft 11 ; and two connecting rods 21 (or ties, given that, in the articulated structure defined by the above quadrilateral, the two connecting rods 21 are mounted to operate in traction) perpendicular to axis 15 and converging with each other towards embossing roller 3 .
  • connecting rods 21 defines, at any instant, the position of instantaneous centre of rotation or hinge C.
  • Each connecting rod 21 is hinged, by two pins 22 and 23 parallel to axis 15 , at one end to a respective end of shaft 11 , and at the other end to the free end of respective arm 20 .
  • the two connecting rods 21 are mounted to operate in traction, but diverge, i.e. arms 20 are located outwards of relative pins 22 with respect to reference axis 17 .
  • supporting unit 12 is an articulated “rocking” unit, in which the opposite ends of shaft 11 are fixed to the free ends of arms 20 , and a surface 24 of cross member 19 —which surface may be flat, as in the embodiment shown, or, in a variation not shown, may be an outwardly convex curved surface—rocks on a surface 25 of a base 26 , which, together with fork 18 , defines supporting unit 12 and is fitted to frame 5 with the interposition of push assembly 16 to move, on frame 5 , in the direction of compression force F.
  • surface 25 is curved with its convexity facing cross member 19 , but, in a variation (not shown) in which surface 24 is curved, may also be flat or even curved with its concavity facing cross member 19 .
  • surface 24 may be curved with its concavity facing base 26
  • surface 25 may be curved with its convexity facing cross member 19 .
  • surfaces 24 and 25 roll, without sliding, on each other, and the point of contact between cross member 19 and surface 25 defines the instantaneous centre of rotation or hinge C (a virtual hinge in this case too), which is movable along surfaces 24 and 25 as a function of the angular position of embossing roller 4 about axis 15 .
  • FIGS. 3 and 4 show graphically the way in which embossing unit 1 is restabilized automatically when destabilized by any anomaly—e.g. sideslip of, or a crease in, strip 2 —capable of moving a reaction force R application point A—originally located along reference axis 17 —laterally along pitch line 8 to a point A′ which, by way of example, is located to the right of point A.
  • any anomaly e.g. sideslip of, or a crease in, strip 2
  • R application point A originally located along reference axis 17 —laterally along pitch line 8 to a point A′ which, by way of example, is located to the right of point A.
  • the pseudo-metacentre or instantaneous centre of stability SC is the point through which compression force F passes before and after said rotation-translation.
  • the instantaneous centre of stability SC is the point defined by the intersection of two lines along which force F is assumed to be applied after each of the two movements into which rotation-translation of driven embossing roller 4 may be divided: a line through C and A′ and which infinitesimal oscillation rotates about C with respect to reference axis 17 ; and a line through point C′ and translated parallel to reference axis 17 by displacement of C to C′.
  • driven embossing roller 4 be mounted to oscillate about a fixed pivot or hinge (in this case, C and SC coincide) located on the opposite side of pitch line 8 to driven embossing roller 4
  • the only way of achieving a permanently stable system, in which translation of driven embossing roller 4 may be rendered less important, is to support driven embossing roller 4 on a supporting unit, e.g. articulated or articulated rocking supporting unit 12 , which allows driven embossing roller 4 to oscillate about an instantaneous centre of rotation C detached from pseudo-metacentre or instantaneous centre of stability SC, i.e. an instantaneous centre of rotation C movable in said fixed plane.
  • embossing unit 1 responds to displacement of point A to A′ by rotation-translation (clockwise rotation and leftward translation) of axis 7 in said fixed plane, i.e. in the FIG. 3, 4 plane, and by displacement of instantaneous centre of rotation or hinge C in the same direction as point A.
  • driven embossing roller 4 (only axis 7 is shown in FIG. 3 , and only surface 24 , parallel to and integral with axis 7 , of cross member 19 is shown in FIG. 4 ) rotates about instantaneous centre of rotation or hinge C, which is considered fixed, taking with it reference axis 17 , which assumes a new configuration 17 ′ through A′. Since pseudo-metacentre or instantaneous centre of stability SC is originally located along axis 17 and, as stated, is integral with the oscillating system, rotation of axis 17 to 17 ′ draws pseudo-metacentre or instantaneous centre of stability SC into a new position along axis 17 ′.
  • pseudo-metacentre or instantaneous centre of stability SC is located along axis 17 ′ and, by definition, is the point, integral with the oscillating system, which moves parallel to pitch line 8 like instantaneous centre of rotation or hinge C
  • the position along axis 17 ′ of pseudo-metacentre or instantaneous centre of stability SC is defined by the intersection of reference axis 17 ′ and the line of action of compression force F′.
  • FIGS. 3 and 4 graphs apply to finite oscillation a theory which can only be applied to infinitesimal oscillation, the graphic result does not exactly correspond to reality, but serves to show clearly the tendency of the system, in response to an anomaly moving point A, to move instantaneous centre of rotation or hinge C in the same direction as point A and to simultaneously produce a stabilizing torque.
  • the main stability condition (pitch line 8 located between driven embossing roller 4 and pseudo-metacentre or instantaneous centre of stability SC) is normally achieved by operating connecting rods 21 as ties and never as push-rods. In the latter case, in fact, the system would be unstable.
  • embossing unit 1 a number of variations (not shown) may be made to embossing unit 1 .
  • driven embossing roller 4 may be fixed, and drive embossing roller 3 oscillating. This solution would involve no theoretical complications, only a certain amount of difficulty—resolvable in known manner—as regards drive torque transmission.
  • both embossing rollers 3 and 4 may be oscillating.
  • an embossing unit of this sort there would still be difficulty in transmitting the drive torque, and oscillation of the two embossing rollers, not being limited by a fixed-rotation-axis embossing roller, may be fairly considerable.
  • the above theory relative to an embossing unit in which the pitch line of contact between the two embossing rollers is fixed, would clearly indicate the possibility of producing, and relatively easily, an embossing unit with a movable pitch line of contact (with both embossing rollers oscillating).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Toys (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US11/199,334 2004-08-09 2005-08-08 Embossing unit Abandoned US20060065033A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO2004A000519 2004-08-09
IT000519A ITBO20040519A1 (it) 2004-08-09 2004-08-09 Unita' di goffratura

Publications (1)

Publication Number Publication Date
US20060065033A1 true US20060065033A1 (en) 2006-03-30

Family

ID=35169372

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/199,334 Abandoned US20060065033A1 (en) 2004-08-09 2005-08-08 Embossing unit

Country Status (5)

Country Link
US (1) US20060065033A1 (ja)
EP (1) EP1627730A1 (ja)
JP (1) JP2006056250A (ja)
CN (1) CN1754687A (ja)
IT (1) ITBO20040519A1 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060198920A1 (en) * 2005-03-02 2006-09-07 Gilberto Spirito Unit for embossing a strip of wrapping material
US8230665B2 (en) 2006-05-12 2012-07-31 Pugh Jeffrey D Apparatus and methods for producing embossed promotional cards
CN104162769A (zh) * 2014-08-21 2014-11-26 刘秋 一种自行车配件压花工艺
CN108973245A (zh) * 2018-08-31 2018-12-11 湖北中烟工业有限责任公司 一种铝箔纸压花装置
CN109130159A (zh) * 2018-08-24 2019-01-04 郑州默尔电子信息技术有限公司 一种电子产品生产用外壳压花装置
CN111976222A (zh) * 2020-08-28 2020-11-24 重庆宏劲印务有限责任公司 特种立体折光纹一次成型工艺

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20070162A1 (it) 2007-07-17 2009-01-18 Futura Spa Dispositivo per il trattamento di materiale cartaceo nastriforme.
CN103963532B (zh) * 2014-05-20 2016-03-16 郑小玲 反向变速滚花器
CN111332054B (zh) * 2020-03-17 2022-06-14 南京尊豪家具有限公司 一种用于木质板材加工的具有清洁功能的压纹设备
CN115138681B (zh) * 2022-07-11 2023-03-28 长飞光纤光缆股份有限公司 一种光缆用金属带轧纹机

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127066A (en) * 1977-05-11 1978-11-28 Melvin Sharkey Adjustable compression roller apparatus
US4715206A (en) * 1984-05-28 1987-12-29 Pomini Farrel S.P.A. Rolling stand of the type with tie-rods with oscillating supports with interchangeable intermediate holder bases
US4735116A (en) * 1986-05-06 1988-04-05 United Engineering Rolling Mills, Inc. Spreading rolling mill and associated method
US5007271A (en) * 1983-10-21 1991-04-16 Karl Boegli Device and a method for embossing a metal foil
US5020655A (en) * 1988-10-13 1991-06-04 Formost Packaging Machines, Inc. Article group-segregating apparatus and method
US5255495A (en) * 1992-10-30 1993-10-26 Hayssen Manufacturing Company Adjustable girth former
US5598774A (en) * 1994-06-06 1997-02-04 Boegli - Gravures S.A. Device for the treatment of flat materials
US6171227B1 (en) * 1998-04-08 2001-01-09 G.D Societ{Acute Over (A)} Per Azioni Embossing unit
US20020174700A1 (en) * 2000-07-14 2002-11-28 Tauring S.P.A. Section bending machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4034822C2 (de) * 1990-10-08 1999-02-25 Deutz Ag Walzenlagerung einer Zweiwalzen-Maschine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127066A (en) * 1977-05-11 1978-11-28 Melvin Sharkey Adjustable compression roller apparatus
US5007271A (en) * 1983-10-21 1991-04-16 Karl Boegli Device and a method for embossing a metal foil
US4715206A (en) * 1984-05-28 1987-12-29 Pomini Farrel S.P.A. Rolling stand of the type with tie-rods with oscillating supports with interchangeable intermediate holder bases
US4735116A (en) * 1986-05-06 1988-04-05 United Engineering Rolling Mills, Inc. Spreading rolling mill and associated method
US5020655A (en) * 1988-10-13 1991-06-04 Formost Packaging Machines, Inc. Article group-segregating apparatus and method
US5255495A (en) * 1992-10-30 1993-10-26 Hayssen Manufacturing Company Adjustable girth former
US5598774A (en) * 1994-06-06 1997-02-04 Boegli - Gravures S.A. Device for the treatment of flat materials
US6171227B1 (en) * 1998-04-08 2001-01-09 G.D Societ{Acute Over (A)} Per Azioni Embossing unit
US20020174700A1 (en) * 2000-07-14 2002-11-28 Tauring S.P.A. Section bending machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060198920A1 (en) * 2005-03-02 2006-09-07 Gilberto Spirito Unit for embossing a strip of wrapping material
US8230665B2 (en) 2006-05-12 2012-07-31 Pugh Jeffrey D Apparatus and methods for producing embossed promotional cards
CN104162769A (zh) * 2014-08-21 2014-11-26 刘秋 一种自行车配件压花工艺
CN109130159A (zh) * 2018-08-24 2019-01-04 郑州默尔电子信息技术有限公司 一种电子产品生产用外壳压花装置
CN108973245A (zh) * 2018-08-31 2018-12-11 湖北中烟工业有限责任公司 一种铝箔纸压花装置
CN111976222A (zh) * 2020-08-28 2020-11-24 重庆宏劲印务有限责任公司 特种立体折光纹一次成型工艺

Also Published As

Publication number Publication date
JP2006056250A (ja) 2006-03-02
CN1754687A (zh) 2006-04-05
EP1627730A1 (en) 2006-02-22
ITBO20040519A1 (it) 2004-11-09

Similar Documents

Publication Publication Date Title
US20060065033A1 (en) Embossing unit
US7717148B2 (en) Machine having web tension nulling mechanism
TW487617B (en) Clamp apparatus
CN102753848B (zh) 防偏移的转动辊系统
US3147898A (en) Transverse web control devices
KR920004158A (ko) 음각인쇄장치의 인쇄판실린더 와이핑장치
JP6408526B2 (ja) ボールねじ研磨方法及びその装置
US10647006B2 (en) Hand and hand system
JPS6078137A (ja) ロ−ル胴駆動用平歯車装置
FI58619B (fi) Tryckrullsanordning i en lindningsmaskin foer materialbanor avsedda att lindas
TW501955B (en) Loop lifter
JPH024740Y2 (ja)
JPH06247001A (ja) プリンターのヘッド圧着機構
JP2678857B2 (ja) 送りローラ装置
JP2000313523A (ja) ２つの整列手段を交互に又は逆相で動かすための装置
JPH02287511A (ja) レーザスキャナの駆動装置
FR2730480A1 (fr) Plieuse comportant un dispositif de freinage
US4844444A (en) Roll feed apparatus
JP7220485B2 (ja) プレス装置
JPH043840Y2 (ja)
JPH0248341A (ja) 給紙装置
JPS63166018A (ja) 塗料塗布装置
JPH024737Y2 (ja)
JPS6344195Y2 (ja)
TW407076B (en) Feeding mechanism for forged forming machine

Legal Events

Date Code Title Description
AS Assignment

Owner name: G.D. SOCIETA' PER AZIONI, ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SPIRITO, GILBERTO;MINARELLI, ALESSANDRO;REEL/FRAME:017289/0058

Effective date: 20051114

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE