EP2687383B1 - Embossing a flat metal blank (method and apparatus) - Google Patents

Embossing a flat metal blank (method and apparatus) Download PDF

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Publication number
EP2687383B1
EP2687383B1 EP12184555.6A EP12184555A EP2687383B1 EP 2687383 B1 EP2687383 B1 EP 2687383B1 EP 12184555 A EP12184555 A EP 12184555A EP 2687383 B1 EP2687383 B1 EP 2687383B1
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EP
European Patent Office
Prior art keywords
embossing
blank
rollers
sheet
speed
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.)
Active
Application number
EP12184555.6A
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German (de)
English (en)
French (fr)
Other versions
EP2687383A1 (en
Inventor
Antoni Font Anguera
Antonio CONTRERAS LOPEZ
Daniel JIMENEZ DONCEL
Ramón Martìn Rojas
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.)
Trivium Packaging Group Netherlands BV
Original Assignee
Ardagh MP Group Netherlands BV
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.)
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Publication date
Priority to EP12184555.6A priority Critical patent/EP2687383B1/en
Application filed by Ardagh MP Group Netherlands BV filed Critical Ardagh MP Group Netherlands BV
Priority to JP2015522235A priority patent/JP6223447B2/ja
Priority to US14/414,915 priority patent/US20150174638A1/en
Priority to RU2015100409A priority patent/RU2611882C9/ru
Priority to DE112013003570.7T priority patent/DE112013003570B4/de
Priority to PCT/IB2013/055929 priority patent/WO2014013471A1/en
Priority to BR112015000925A priority patent/BR112015000925A2/pt
Priority to CN201380037707.3A priority patent/CN104540687B/zh
Publication of EP2687383A1 publication Critical patent/EP2687383A1/en
Application granted granted Critical
Publication of EP2687383B1 publication Critical patent/EP2687383B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2607—Locally embossing the walls of formed can bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2684—Cans or tins having circumferential side seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/0004—Machines or apparatus for embossing decorations or marks, e.g. embossing coins characterised by the movement of the embossing tool(s), or the movement of the work, during the embossing operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/0004—Machines or apparatus for embossing decorations or marks, e.g. embossing coins characterised by the movement of the embossing tool(s), or the movement of the work, during the embossing operation
    • B44B5/0009—Rotating embossing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/0095—Machines or apparatus for embossing decorations or marks, e.g. embossing coins using computer control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • B65D7/42—Details of metal walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
    • B21H8/005—Embossing sheets or rolls

Definitions

  • the invention concerns a method of embossing an artifact into a wall of a can.
  • the metallic can maybe a three-piece can having a wall that has a vertical weld line. This weld line connects a cylindrically shaped wall and this wall receives a top end and a bottom end seamed thereto, to finish the can.
  • those cans are aerosol cans, paint cans or containers for antiperspirant (Deos). Those cans receive a nozzle on top that upon pressing releases the content that is under internal pressure.
  • the invention further concerns an apparatus (claim 10) that enables such embossing into a three-piece can, preferably into the wall of the three-piece can, prior to its shaping in to a cylindrical element and of course, prior to welding.
  • Cans are decorated by using paint, printing or leaving can walls blank.
  • Specifically decorated walls are provided in an already printed version or decorated shape as flat blanks or sheets. They are stacked into a pile of decorated blanks that are released piece-by-piece, put onto a bed and forwarded by transporting rollers, to send them to shaping rollers that provide a cylindrical shape to each of the flat blanks.
  • This cylindrical shape is open at both free vertical edges (both ends of the blank, converted to a cylinder) and will be transported further to a welding line, where an axial weld is provided to close the cylinder and provide the wall of a three-piece can.
  • Both rollers may be synchronized when the second embodiment is used which has cooperating microscopic plateau features, number 10, either above only in the first embodiment or above and below in the second embodiment, but still of microscopic nature.
  • a synchronization takes place of both rollers to align the patterning features to each other, see page 7, lines 22 to 29.
  • a macroscopic embossed feature is a third embodiment in that figure 4 , explained on page 8, lines 23 to 31.
  • the macroscopic embodiment has a recess and a projection (numbers 16 and 18 in figure 4 ) that cooperate and provide a step in the gap 12 which is very slightly thinner in the gap portion 14, where the microscopic embossed feature is additionally imprinted in the longitudinally transported sheet.
  • each roller pair that has a distance from the other roller pair adds additional patterns into the sheet to more densely provide patterning in the end when all free roller pairs have provided pair respective patterns.
  • US 2002/0090578 discloses the transfer of holographic images into metal surfaces, especially beverage cans are mentioned in paras. [0011] and [0012]. These holograms are "impressed" into sheets or strip metals of aluminum foil or aluminum sheet metal.
  • a flat carrier 12 supplies the image, for example the hologram image, and transfers it to a print roll 10 that has on its opposite side of the carrier 12 a support roll 14. Transferring this image from the print roll further to the can that is shown in a large mandrel in figure 4 the print roll 14 is used, and this print roll presses against the surface of the can 30 as the mandrel and the print roll are turning, see para.
  • This might have an aspect or visual appearance and it receives a 3-dimensional shape and enhances the attitude and appearance of a printed logo, a printed lettering ( Kunststoffzug ) or a picture that receives an additional 3-dimensional shaping.
  • This further enables Braille writing and allows making use of writing on the can's wall for blind people.
  • the invention achieves this by using an embossing that is provided prior to the shaping.
  • the embossing is not done into the closed cylinder, but it is done prior to preparing this flat sheet/blank into a cylindrical shape, thus it is positioned in the manufacturing line after (behind, downstream) placing the flat blank or sheet, printed or not printed prior to shaping, on the transport bed and prior (upstream) to the shaping rollers that are behind the transport bed.
  • Putting the rotating embossing rollers here that provide the artifact, representing any type of in depth shaping, such as logo, writing, lettering, picture or any other decorating shape, will reduce detrimental effects on a manufacturing line.
  • the additional embossing rollers can be placed here without altering the whole transport and manufacturing line.
  • the embossing rollers are placed behind the transport rollers, of which there are several pairs provided as groups (each group has an upper and a lower transport roller). After those transport rollers grip the flat blank, it is measurable in relation to its position on the bed by at least one encoder on at least one of the rollers and slip has minimized, if even no slip at all. It has a certain position and distance that is reducing towards the shaping rollers.
  • the embossing rollers Prior to those shaping rollers the embossing rollers receive the transported, flat blank (also called "sheet”, in the following we use blank, although the blank might also have a decorated surface such as printing). This blank has a certain relative position towards a "central embossing point" between an upper and a lower embossing roller, which is called “embossing position/line”.
  • the front edge of the transported blank decreases its distance from this embossing position that can be understood as a horizontal line, parallel to both axes of the upper and the lower embossing roller.
  • the embossing rollers At the time of meeting this transported flat blank, the embossing rollers have the same speed, at least substantially the same speed as the transported flat blank, to avoid slippage (claim 1).
  • the transport rollers, the embossing rollers and the sheet/blank have the same speed at the surface of the blank. This during embossing the artifact into the blank (claim 1).
  • the surface speed concerns the circumferential speed of the transport rollers and the embossing rollers. Both touch the surface of the blank. Thus this surface has the same speed (longitudinal) as the circumferential speed of those mentioned rollers. As the surface is not separate from the blank, the whole blank has the speed of the surface.
  • those embossing rollers would be made of metal, both, the upper and the lower roller.
  • the upper roller might have a protruding portion and the lower roller might have a depression, into which the protruding portion suitably fits during rotation at any time the upper protrusion and the lower depression meet. This usually is done by a gear transmission synchronization that keeps the relative position of both embossing rollers fixed.
  • the rotating embossing rollers that are geared together are driven by a "servo" (drive or motor) that has a control.
  • This control provides a position control of the embossing rollers to fit to the position of the transported blank sheet.
  • the protruding and depression portion of the embossing rollers has to fit or to register to a certain position on the transported blank.
  • a printed portion already exists that is to be hit by the depression and protrusion, the axial position and a distance from the front edge are determined.
  • Such both embossing portions of the embossing rollers have to fit to such an "artifact field" that is already printed on the sheet/blank. This is called an artifact position, field or a printed artifact that has to be met by the embossed artifact that is provided to the blank.
  • the embossed artifact will have a certain distance from the front edge of transported blank, and such the printed artifact also has this certain distance from the front edge.
  • the axial position (horizontally viewed) will not change, and such the control will register the circumferential position of the embossing portions of both rollers and the artifact field (or artifact position) on the flat blank.
  • this blank After having left the embossing rollers with the back edge of the blank, this blank is still flat and will then be transported by either a further transporting roller pair (upper and lower roller) or already by shaping rollers, which can functionally be treated as being transport rollers as well, having an additional function of preparing the cylindrical shaping of the still flat and transported sheet.
  • the control therefore provides that the embossing rollers have the same speed as the transported blank at the surface of the blank during the embossing taking place and may be somewhat earlier, when already gripping the front edge of the transported sheet with the embossing rollers. There might be a further circumferential space that corresponds to a lateral space from the weld edge (the front edge) of the sheet until the embossing field is reached, where the embossing portions of both embossing rollers are acting on the sheet.
  • This length position of the artifact in the sheet is determined by calculation and can be adjusted by controlling the circumferential position of the embossing portions of the rollers. Their rotation may also be corrected, when a control is designed as feed-forward-control providing the rollers already with a speed roughly identical to the transport speed of the blank and additionally providing a position control which corrects remaining differences.
  • An inverter unit will provide energy to the motor and affect the control to register both embossing portions to correspond to the certain given position of the embossing field in the blank.
  • Best option to provide this control is a set value of a sensor that senses the leading edge of the transported sheet.
  • This front edge detector will be at a certain distance from the embossing line (the line between the two embossing rollers) and calculation can take place what time is needed by a given speed of the blank, until the front edge will reach the embossing line or an embossing position (claim 3).
  • the embossing rollers already have a speed that is a circumferential speed at the circumference being equal to the speed of the transported sheet, and the distance of the embossing portions (male portion and female portion) are in circumferential terms the same from the embossing line as is the front edge of the blank (measured by the sensor probe) from the same target, the embossing line between the rollers.
  • the transport of the blank and the rotation of the rollers therefore are already synchronous and will reach best registration.
  • the further the embossing field is away from the front edge the further away the male and female embossing portions have to be from the prior explained position that was aimed to make the embossing at the front blank edge.
  • the front edge is free and not embossed and the embossing field is further upstream of the transported sheet and thus, the registration of the embossing portions of the rollers are also away from the "first time meeting position".
  • the control provides a correction, when this is not proper at the time of sensing the front edge of the blank.
  • this encoder enables exact measurement of the position of the embossing (male and female) portions of the rollers, such all control variables are measurable and can be adjusted in a system that provides a correction facility for each transported sheet to be embossed in his own embossing field.
  • each blank is with its front edge spaced apart from the prior blank to have a certain own circumferential position correctly adjusted, thus, each front edge triggers a new control action to the servo motor driving the embossing rollers.
  • Each sheet will be provided with an exact registration of embossing and eventually printed artifact field.
  • the edge control signal or referential signal that has a leading edge will be forwarded to the control section that can eventually adjust or correct the speed of the servo motor or drive to momentarily speed up or slow down the embossing rollers to allow the position to register to the position of the target, which is the printed artifact field. Still, the speed has to be the same again upon the front edge of the flat blank reaches the embossing position/line between the two embossing rollers.
  • the leading edge of the sensor signal can be used to calculate a time interval that is still available prior the front edge reaching this embossing position (claim 3).
  • the transport rollers at least one of them, might also have an encoder, the speed (and the position) of the blank is known to the control system and triggering the sensor or sensing the front edge of the transported sheet will allow, using the same speed, to calculate a time interval that is still available for the control to adopt the position of the embossing portions (male and female) in the embossing rollers.
  • the edge detector might have a detecting nose that is directed upwards and might operate on magnetic field influence or might as well operate optically.
  • control actions are used to stabilize the system to avoid eventual mis-embossings.
  • Each embossing that is slightly displaced from the embossing field will destroy this sheet for later use as cylindrical wall or can and thus, these mis-embossings have to be kept to a minimum.
  • embossing roller pair (claim 10, feature c). Embossing roller pair is driven by a servo motor/drive and the embossing roller is placed either behind the last transport roller or between the last and the penultimate transport roller group (each as an upper and a lower roller) to act on a still flat blank or sheet.
  • the embossing roller pair is rotatable and each one, the upper and the lower has an embossing feature (one has a male feature, the other a female feature) to register at the position, where both rollers come closest together and have a distance that corresponds to the thickness of the sheet that is transported through this embossing line or embossing position (claim 3).
  • the upper and the lower embossing roller are mechanically coupled, preferably by gear wheels provided axially outside at an end of each axis thereof (claim 15).
  • the embossing rollers Prior to the embossing rollers, there are one or more groups of transport rollers, the upper one having rubber circumference and the lower having metal circumference. They are driven with a transport speed that is synchronous to the speed (circumferential speed) of the embossing rollers, still the servo drive makes the control of the embossing rollers independent from the speed of the transport rollers. All transport rollers thereby might be coupled together by belt drive or by gear wheels. Still, the embossing rollers are decoupled and electrically synchronized with the same speed by the servo drive that provides this same speed by control.
  • the "same speed” might be altered by control that is triggered by the referential signal indicative of the front edge of a passing sheet and provided by a sheet detector. This feeding speed of the blank is provided to those blanks by the transport rollers.
  • the speed controller provides same speed through the servo drive to the embossing rollers and thus, speed-coupling takes place electronically and not by belt-drive or gear wheels.
  • a metal can has a cylindrical body having a height that is larger than a diameter thereof and is produced by the embossing method (claim 1) as directly obtained product. It has the embossed artifact in the wall and this prior to having a weld or seam in axial direction connecting the free axially extending edges of the cylindrically shaped body wall. This can, when having a seamed top end and seamed bottom end might be an aerosol can, carrying the axially extending weld or seam. That joins the free edges of the cylindrically pre-shaped wall.
  • those cans are called three-piece cans and protection is to be conferred to the wall prior to welding, after welding and when being implemented into a finished metal can, having the cylindrical wall and a top cover and a bottom end seamed by double seam to the cylindrical wall.
  • Fig. 1 transports the flat blanks s from left to right.
  • a feeder or hopper 18 that holds a stack S of many stacked sheets s, which are lowered by a lifting device 18a to the level of the bed 10.
  • a lifting device 18a to the level of the bed 10.
  • one blank s is positioned by a mechanically controlled rotation device 18b that lowers the lowest blank s with the lifting device 18a and places it on the bed 10. It is synchronized to the left by attaching it to a bar 18c with top lateral directing and piece.
  • the blank's' has a front edge s 1 .
  • this blank After this blank has been positioned on the bed 10, it will be moved forward to the first pair of transport rollers 20. They turn in opposite directions (top and bottom) and grip the front edge s 1 and the whole flat blank. It will be forwarded at transportation speed, implied to the blank s by the first transport rollers 20. This speed is above 150 m/min and up to 190 m/min. Then the transported blank s is also gripped by the second transport rollers 22, having top and bottom roller.
  • the tinplate sheets may have a thickness of 0,18 mm to 0,20mm. Substantially thicker tinplate sheets have been examined of up to 0,5 mm and even 0,7 mm at reduced speed v s of transportation.
  • an encoder 17 This encoder is either coupled directly to the axis of the lower transport roller 22a or coupled to this by a transmission belt 16 that is not separately shown detail, just as a sketched link or connection.
  • All transport rollers 20,22,24 are coupled by gears or belts or gear belt to provide a lateral extending transport unit having same speed at all transport rollers along transport bed 10.
  • Synchronizing sensor 18d and mechanical revolving motor provides an upwards and downwards movement of the fetching device 18a' (shown in dashed lines) and picking the lowest sheet s from the pile S and shown in continuous lines 18a when in the lowermost position on the top of the bed 10.
  • the fetching device 18a will rise again and pick the next lowermost blank s from the pile S.
  • a sensor 50 is provided that is shown in more detail in Fig. 2 . It may as well be placed directly behind the initial roller group 20. Such distance may be below 10 cm, 5 cm or 2,5 cm and between rollers 20,22.
  • This sensor 50 touches with its nose portion 51 the front edge s 1 of the incoming sheet s having the speed v s .
  • This sensing signal as leading edge 55a as shown in the time graphic is the initiation of the control cycle. It is sent to the control system 40 as signal 55.
  • the rising edge (which could also be a falling edge) is called leading edge 55a.
  • a duration of this pulse sensed by the nose 51 is the length of the sheet divided by the speed of the sheet.
  • the sensor 50 provides this signal 55 to the control system 40 that controls a servo drive (AC-motor) 38 which drives either the upper or the lower embossing roller 31a or 31b.
  • Both embossing rollers are mechanically connected by a link that might be a gear-wheel link, allowing a continuous mechanical synchronization of upper and lower roller and a fixed coordination of the male protrusion 32b and the female indentation 32a provided as embossing features at a certain place of the circumference of both, the upper and the lower embossing rollers 31a, 31b, see Fig. 1 for such detail.
  • the time T 1 can be calculated. Moving 50 to the left increases the time T 1 allowed to control registration of the embossing rollers 30.
  • the calculation is done by the control system 40, determining the angular position of both embossing features 32a, 32b from the embossing position 33.
  • the angle ⁇ 2 as shown in Fig. 5 times the radius r 31 of the upper roller 31a (and of course the lower roller 31b) gives the distance along the circumference that the embossing feature 32a (and corresponding embossing feature 32b for the lower roller 31b) has from the embossing point, position or line 33.
  • the embossing field 11a shown in Fig. 5 is not provided at the front edge s 1 but it is delayed or spaced to the back by the distance y 11 .
  • This field 11a is the place, where the embossing 32a/32b has to impact a transported sheet s with the same speed as the travel of the blank s to provide a clean 3-dimensional shaping into this field 11a.
  • the control system 40 is provided and determines such exact pre-shaping into the flat device s traveling at the speed v s .
  • the speed v 31 at the circumference of the upper roller 31a and the speed v s are the same.
  • the distance of both 11a and 32a from the embossing line 33 also is the same, when the control system 40 has corrected or adjusted the speed and position of the upper (and lower) embossing rollers 31a, 31b.
  • the embossing rollers 30 have a larger diameter than the transport rollers. Experiments have shown the larger rollers to be designed below 75 mm diameter being a good choice.
  • the embossing indentation 32a (and correspondingly the embossing protrusion 32b, not shown in Fig. 5 , but displayed in Fig. 1 ) have a distance from this embossing line 33 that corresponds to y 11 , but on the outer circumferential surface of the embossing rollers 30.
  • the embossing action is - after gripping the blank s - delayed as far as a distance y 11 reaches from the front edge s 1 and after embossing, the blank is further moved through a slit between the two embossing rollers to be sent to another transport roller group 24 (not shown in Fig. 1 ) and a further downstream shaping rollers 26, not shown in Fig. 1 , but displayed in its position.
  • the servo drive 38 is driving the upper embossing roller 31a in Fig. 1 .
  • the embossing rollers are linked or connected by a gear-wheeled system 39, shown schematically only.
  • Buttons 48 give basic functions in the control section 40.
  • a display 49 displays machine data and system data on a screen, to visualize the operating and the function of the control system 40 for the embossing rollers.
  • the front edge detector 50 should be placed as close as possible behind the first transport roller group 20.
  • a rotational encoder may provide reliable position data of advancing each blank s.
  • the rotational encoder is coupled to either one of their axes or a belt drive connecting the axes of those transport rollers.
  • the control system is in more detail displayed in Fig. 4 .
  • Two PI-controllers are connected in series. One is the position control 41 and the other one is a speed control.
  • the speed control 42 controls a thyristor, IGBT- or transistor inverter 43 that drives an AC-servo motor 38, linked by either gear or direct drive to the upper roller 31a.
  • y 2 is provided to the PI-controller 41 that is the position control.
  • the position controller 41 might as well be a proportional controller.
  • the set value is provided as y-value.
  • y is y 2 as shown in Fig. 5 as the distance of the embossing field 11a, where the embossing artifact has to be placed, from the embossing line 33.
  • the control for the servo drive 38 provides that x 2 has the same value.
  • the control also provides that the speed of the outer surface of the roller 31a and the speed of the blank s is the same.
  • the front edge s 1 has a distance y 1 and added to this is the distance y 11 of the embossing field 11a from the front edge s 1 , both making up the distance y 2 which is the set value for the position control 41 in the system control 40.
  • the position controller 41 when being a controller having integral component, as output of the controller 41, it can be assumed that this speed v s will be the same as v 31 , and thus a pilot signal (feed-forward-control) may be implemented, supplying the output of the position control with an added value of v s .
  • the controlling component or the compensating component from controller 41 needs to be small and may be reduced to zero, when the relative position is correct of roller and sheet and the speed is the same for roller 31a and blank s.
  • controllers may be employed, PI-controllers are shown for easy reference and one example of providing an error-free control for speed (used for producing zero slip upon touching the blank s with the embossing roller 31a/31b) and for reducing any deviation from the embossing field 11a as zero positional error for a moving target.
  • Controller 42 might be of PID-type
  • controller 41 might be of P-type.
  • Fig. 3 has an uncoiled wall of the three-piece can 15, having the embossing feature 11 provided in the wall.
  • This embossing feature is mainly a logo I with an oval slanted shape and added to it a writing that is continuing in axial direction.
  • the embossing has to be a plain indentation as additional artifact on the can, which can be read by touching similar to Braille writing. Blind people might read the can's outer surface.
  • the printed area may contain the same shape in printed color as it will receive embossed.
  • the embossing has to fully and precisely register with the printed artifact. This is the target position when a printed artifact is already provided in a printed decoration of the flat sheet.
  • colored decoration is not a requirement to provide a precise positioning of the embossed artifact. This can as well be provided on a metallic surface, not decorated by writing or it can be provided on a colored, already printed surface that has no specific writing in it, where the embossing has to be placed.
  • This embossing field 11a is initially a central Impress-logo-writing in the left end of the field 12.
  • This field 12 marks the places, where the tool and with it the method that is disclosed, can provide embossing features. It can be spaced upward and downward and it can be spaced forward and backward, leaving an edge rim of small size, completing the full blank s that is a flat sheet of may be tinplate.
  • One other field 11a" for embossing is provided in the right end of the embossing area 12 and is open for placing embossed feature 11".
  • Distance y 11 is substantially larger than for reaching the embossing field 11a.
  • embossing field 11a' has distance y 12 .
  • the cylindrical wall s* is provided that is used to make up the can as three-piece can as shown in Fig. 3 , left portion.
  • the diameter d is substantially the length of the blank and the height h of the can 15 is substantially the width of the blank s.
  • An outside bulged top end (cover) is seamed to the top edge of the cylindrical wall and a bottom end (closing piece) is seamed to the bottom edge of the cylindrical wall s*.
  • a pressure operated valve may be placed into a central opening of the top bulged cover.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
EP12184555.6A 2012-07-18 2012-09-14 Embossing a flat metal blank (method and apparatus) Active EP2687383B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP12184555.6A EP2687383B1 (en) 2012-07-18 2012-09-14 Embossing a flat metal blank (method and apparatus)
US14/414,915 US20150174638A1 (en) 2012-07-18 2013-07-18 Embossing a flat metal blank (method, tool and object)
RU2015100409A RU2611882C9 (ru) 2012-07-18 2013-07-18 Тиснение плоской металлической заготовки (способ, устройство и объект)
DE112013003570.7T DE112013003570B4 (de) 2012-07-18 2013-07-18 Prägen eines flachen Metallblechzuschnitts (Verfahren, Werkzeug und Gegenstand)
JP2015522235A JP6223447B2 (ja) 2012-07-18 2013-07-18 平らな金属ブランクのエンボス加工（方法、器具、および対象物）
PCT/IB2013/055929 WO2014013471A1 (en) 2012-07-18 2013-07-18 Embossing a flat metal blank (method, tool and object)
BR112015000925A BR112015000925A2 (pt) 2012-07-18 2013-07-18 estampagem de uma placa metálica plana (método, ferramenta e objeto)
CN201380037707.3A CN104540687B (zh) 2012-07-18 2013-07-18 对平坦金属毛坯进行压纹的方法和设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12176954 2012-07-18
EP12184555.6A EP2687383B1 (en) 2012-07-18 2012-09-14 Embossing a flat metal blank (method and apparatus)

Publications (2)

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EP2687383A1 EP2687383A1 (en) 2014-01-22
EP2687383B1 true EP2687383B1 (en) 2015-11-18

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EP12184555.6A Active EP2687383B1 (en) 2012-07-18 2012-09-14 Embossing a flat metal blank (method and apparatus)

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US (1) US20150174638A1 (ru)
EP (1) EP2687383B1 (ru)
JP (1) JP6223447B2 (ru)
CN (1) CN104540687B (ru)
BR (1) BR112015000925A2 (ru)
DE (1) DE112013003570B4 (ru)
DK (1) DK2687383T3 (ru)
ES (1) ES2561884T3 (ru)
RU (1) RU2611882C9 (ru)
WO (1) WO2014013471A1 (ru)

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US10421111B2 (en) 2015-04-17 2019-09-24 Ball Corporation Method and apparatus for controlling an operation performed on a continuous sheet of material
US11459144B2 (en) * 2016-06-14 2022-10-04 Americana Jv Investments Inc. Container for distilled spirits and method for making the same
CN106111762B (zh) * 2016-06-21 2017-12-12 安徽智扬门业有限公司 一种压花机
GB2563270B (en) 2017-06-08 2019-09-04 Envases Uk Ltd Deformation of thin walled bodies by registered shaping
GB2573401A (en) * 2017-06-08 2019-11-06 Envases Uk Ltd Deformation of thin walled bodies by registered shaping
EP3638834B1 (en) * 2017-06-15 2021-10-20 STÄUBLI BAYREUTH GmbH Weaving machine, method for simultaneously weaving two pile fabrics on such a machine and pile fabric obtainable with such a method
CN109968887B (zh) * 2019-04-23 2024-05-24 佛山市高明区捷丰裕金属制品有限公司 一种新型板材压纹机
CN110406246A (zh) * 2019-08-30 2019-11-05 合肥市兴烨包装材料有限公司 一种高品质的板材印刷机
CN112776300B (zh) * 2020-07-31 2022-06-03 青岛三益塑料机械有限公司 板材同步对花系统及同步对花控制方法
CN113793312B (zh) * 2021-09-08 2023-04-21 上海思熠光电科技有限公司 一种方坯位姿智能检测方法及装置

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Also Published As

Publication number Publication date
BR112015000925A2 (pt) 2019-10-15
CN104540687B (zh) 2017-08-08
RU2611882C2 (ru) 2017-03-01
DE112013003570T5 (de) 2015-04-16
US20150174638A1 (en) 2015-06-25
ES2561884T3 (es) 2016-03-01
JP2015526293A (ja) 2015-09-10
DK2687383T3 (en) 2016-02-15
WO2014013471A1 (en) 2014-01-23
JP6223447B2 (ja) 2017-11-01
CN104540687A (zh) 2015-04-22
DE112013003570B4 (de) 2023-08-03
RU2611882C9 (ru) 2017-08-10
RU2015100409A (ru) 2016-09-10
EP2687383A1 (en) 2014-01-22
DE112013003570T8 (de) 2015-06-03

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