EP0358890A2 - Vorrichtung zum Wiederaufwickeln einer dünnen Bahn - Google Patents

Vorrichtung zum Wiederaufwickeln einer dünnen Bahn Download PDF

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Publication number
EP0358890A2
EP0358890A2 EP89113302A EP89113302A EP0358890A2 EP 0358890 A2 EP0358890 A2 EP 0358890A2 EP 89113302 A EP89113302 A EP 89113302A EP 89113302 A EP89113302 A EP 89113302A EP 0358890 A2 EP0358890 A2 EP 0358890A2
Authority
EP
European Patent Office
Prior art keywords
rewinding
strip
upper frame
player
metallized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89113302A
Other languages
English (en)
French (fr)
Other versions
EP0358890A3 (en
EP0358890B1 (de
Inventor
Sandro Zuliani
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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 Bobst SA filed Critical Bobst SA
Priority to AT89113302T priority Critical patent/ATE82937T1/de
Publication of EP0358890A2 publication Critical patent/EP0358890A2/de
Publication of EP0358890A3 publication Critical patent/EP0358890A3/fr
Application granted granted Critical
Publication of EP0358890B1 publication Critical patent/EP0358890B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/021—Multiple web roll supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/30—Arrangements for accumulating surplus web
    • B65H20/32—Arrangements for accumulating surplus web by making loops
    • B65H20/34—Arrangements for accumulating surplus web by making loops with rollers
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/10—Expanding
    • Y10T279/1037—Axially moving actuator
    • Y10T279/1041—Wedge
    • Y10T279/1049—Wedge with jaw positively interlocked with wedge; e.g., dovetail or T-slot

Definitions

  • the present invention relates to a device for rewinding a strip of thin material, in particular a metallized strip, previously worked by a machine for converting sheet material such as cardboard, paper, plastic, etc.
  • Processing machines intended for example for hot or cold deposition of a metallized film according to one or more patterns given on the sheet material to be worked, generally comprise at least one metallized tape dispenser, organs to unwind this metallized strip intermittently, so that its surface used is optimal and a rewinding mechanism of the metallized strip used.
  • the mechanism for rewinding the metallized strip comprises, in the devices known to date, a take-up reel per metallized strip. It is common to encounter the use of several metallized strips placed side by side across the width of the machine. This arrangement requires, of course, a number of receiving coils which is equal to the number of metallized strips used. If, for example, we choose to use four metallized strips, we will have to have four receiving coils which will be arranged in pairs on two pivoting transverse bars, mounted between the frames of the processing machine.
  • Each of these take-up coils is connected to its respective pivoting crossbar using a lever arm.
  • the receiving coils are driven using two rotating shafts, arranged transversely between the frames of the processing machine.
  • the circumference of each of these rotating shafts comes into contact with the circumference of the circular lateral cheeks of the respective receiving coils and, therefore, a continuous friction drive takes place.
  • the advance of each metallized strip being different, there will therefore be an irregular rotation of the receiving coils. This means that, in certain cases, a take-up reel will rotate, while another, that of a metallized strip which has not been moved, will be stationary and will have its circumference rubbed on the circumference of the rotating shaft.
  • the present invention aims to remedy these drawbacks. To this end, it solves the problem of rewinding, regularly, a metallized strip previously worked by a processing machine, using a rewinding device characterized in that it comprises an upper frame connected by columns and a support leg to a lower frame, said upper frame being equipped with at least one rewinding member composed of a motor-reducer on the axis of which is mounted a take-up reel, of at least a first roller and a third roller for guiding the metallized strip, in that said means for applying a mechanical tension to the strip comprise at least one vertical slide disposed between the upper frame and the lower frame, said vertical slide being equipped with a walkman on which a roller is mounted, in that upper, lower and strip break limit switches are arranged in the vicinity of said c vertical stringer on transverse supports and on a cross member, in that said walkman, in the event of a band break, is moved vertically from a lower position to a higher position by an elevator controlled by a lifting device
  • the device is distinguished by great accessibility and ease of changing the take-up reels, combined with precise and constant control of the rewind tension.
  • Figure 1 shows a rewinding station 1 placed perpendicularly to a platen press of which only the left side frame 2 has been shown in this figure.
  • This left lateral frame 2 has an opening 3 through which the metallized bands 4 to 4 having been worked in the platen press pass.
  • metallized strips 4 to 4e are transported, in the platen press, in the same direction as the sheets of paper or cardboard on which a portion of metallized material is to be deposited. It is obvious that to be delivered to the rewinding station, these metallized bands 4 to 4e must undergo a change of orientation, which is carried out in the press using idler rollers (not shown) judiciously arranged so in that the metallized strips are present, in the opening 3, in a "flat" position, in the extension of the rewinding station 1.
  • a rewinding member of the metallized strip In order to simplify the description, we will take into account that a rewinding member of the metallized strip.
  • the rewind members of the other metallized bands are similar and their operation as well as their construction may be understood by analogy to the rewinding device that we will describe below. They will be referenced by the same signs to which the letters a to e will be added.
  • the rewinding member of the metallized strip 4 comprises a motor-reducer 9 (see FIG. 2) on the axis 70 of which is mounted a reel holder hub 10.
  • This reel holder hub receives a take-up reel 11 on which is wound the metallized strip 4 which was used in the platen press.
  • the metallized strip 4 coming from the platen press is guided by a first roller 12, then passes around a part of the circumference of a second roller 13 mounted on a walkman 14 moving along a vertical slide 15 having the form of an axis extending between a cross member 75 fixed to the lower part of the columns 22 and 23 and the sole 36 of the upper frame 20.
  • the metallized strip 4 finally passes around a third roller 16 before be driven on the take-up reel 11.
  • the travel of the player 14 is limited in its amplitude by upper limit switches 17, lower 18 and band break 19. The functions of these different switches will be explained further in the present description.
  • the lower frame 21 also includes a mechanism intended for moving the rewinding station 1. This mechanism comprises two rollers 25 and 26 each mounted on an arm 27 respectively 28 welded to the part lower of each of the columns 22 and 23 and a rear support 29 welded to the junction of the two beams constituting the lower chassis 21.
  • This rear support 29 comprises a plate 30 provided with a threaded rod 31 on which a nut 32 is disposed.
  • the threaded rod 31 engages in a thread arranged in the rear support 29. It is therefore possible, with this arrangement, to level and move the rewinding station 1, this using a lifting device (not shown) comprising a lifting member mounted on rollers so that the rear support 29 of the rewinding station 1 having been lifted off the ground, it can be moved at will.
  • FIG 2 is a view along A of Figure 1.
  • the upper frame 20 is made of a front plate 33 connected to a rear plate 34 by tubular spacers 35 and by a sole 36 bolted to the upper part of the columns 22 and 23 and the support leg 24.
  • the reduction motors 9 to 9e are fixed to a cheek 37 connected by sockets 38 to the rear plate 34.
  • Bolts (not shown) pass through the various plates and play as well as the spacers 35 and the sockets 38 so as to constitute a rigid assembly.
  • the axes of each of the reduction motors 9 to 9e are guided in bearings (not shown) arranged in the rear 34 and front 33 plates.
  • the roller 13 mounted on the player 14 is shown in its lower position, corresponding inter alia to the occupied position, for example, when there is a break in the band or faulty operation of the lower limit switch 18. Also shown in this figure are the different positions that the roller 13 can occupy.
  • the lower operating position of the roller 13 is shown at 13 ′, its upper position at 13 ⁇ and its out-of-service position at 13 ′′′.
  • the various operations triggered by the arrival of the roller 13 in its lower and upper operating positions will be explained in more detail later in this description.
  • an elevator 40 (see also FIG. 1) consisting of a transverse bar 41 mounted between two supports 42 and 43 each having a slide 44 respectively 45 which can slide on vertical rods 46 and 47 arranged between the upper frame 20 and the lower end of the columns 22 and 23.
  • Each support 42, respectively 43 has an anchor 48, 49 to which is fixed the end of a cable 50 winding around a drum 51 forming part of a lifting device 52 which will be described in more detail with the aid of FIG. 3.
  • the cable 50 is partially wound around the grooved wheels 53 and 54 fixed on the columns 22 and 23 and around the grooved wheels 55 and 56 fixed on the lifting device 52 (see Figure 1).
  • FIG 3 is a partial sectional view along III ⁇ III of Figure 1 showing in detail the lifting device 52.
  • the latter comprises a support arm 57 screwed against the lower part of the sole 36 of the upper frame 20.
  • a plate 58 is welded to the support arm 57.
  • the two wheels with return grooves 55 and 56 are fixed, so as to be able to rotate, against the plate 58 by threaded pins 59.
  • the lower part of the support arm 57 is provided with a bearing 60 in which a part of the axis 61 engages.
  • the bearing 60 has a thread 62 at one of its ends and a smooth sleeve 63 at the other of its ends.
  • the axis 61 has a thread 63 intended to be screwed into the internal thread 62 of the bearing 60 while its cylindrical part is guided by the smooth sleeve 63.
  • One of the ends of the axis 61 is provided with a crank 64 maintained by a pin 65.
  • the other end of the axis 61 supports the drum 51 held by a key 66 and a stop ring 67.
  • the end of the axis 61 projecting from the drum 51 has an extension 68 intended to cooperate with a switch 69 whose purpose is to neutralize the device until the elevator 40 has been lowered to its lower position after having ironed the metal strip or strips, which have broken, around their respective rollers 13 to 13th.
  • These hubs will be described in more detail using FIGS. 5 to 7.
  • the axes 70 of the reduction motors 9 to 9e are held in the front plate 33 by bearings constituted by a ball bearing 71 held by two stop rings 72.
  • the roller 12b is also fixed against the face of the front plate 33 using a thread 73 arranged at one end of its axis 74.
  • This roller 12b is similar to all the other rollers 12 to 12e, 13 to 13e and 16 to 16e. It will be described in more detail using FIG. 4.
  • FIG. 4 is a partial sectional view along IV ⁇ IV of Figure 1.
  • the roller 13b of the player 14e which is shown. All the other rollers 13 to 13e as well as the players 14 to 14e are identical.
  • the upper limit switches 17 to 17e are also the same and they are fixed on transverse supports 76 and 77 (see FIG. 1), mounted on the rear face of the columns 22 and 23, using the screws 82.
  • These switches are commercially available and include a lever 78 pivoting about an axis 79.
  • One end of the lever 78 is provided with a roller 84 which is in contact, in the present figure, with the rear part of the player 14b.
  • the other end of this lever 78 is intended to act on the control rod 81 of said switch 17b.
  • the lower limit switches 18 to 18e are mounted in the same way on a cross member 83 (see Figures 1 and 2) and the band break switches 19 to 19e are mounted on similar transverse supports 84 and 85 to the transverse supports 76 and 77 mentioned above (see Figures 1 and 2).
  • the player 14b comprises a body 86 pierced with a bore 87 in which are arranged two linear ball bearings 88 and 89 whose position is ensured using special screws 90 and 91. These bearings allow free movement and without play of the walkman 14b along the vertical slide 15b.
  • the rear face of the player has two inclined planes 92 and 93 facilitating the engagement of the player 14b on the rollers 80 of the switch 17b.
  • the front face of the portable player 14b has a thread and a countersink in which the axis 74 and the washer 94 of the roller 13b are fixed. This fixing is ensured by the thread 95 tightened using the hexagon 96.
  • the roller 13b is constituted by a cylindrical jacket 97 inside which are arranged the ball bearings 98 and 99. These ball bearings are held in their correct position using the locking rings 100 and 101 as well as the screw 102.
  • FIG. 5 is a sectional view of a coil carrier hub 10.
  • This hub 10 is mounted on the end of the axes 70 of each reduction motor 9 to 9e. It comprises a central tube 103 at the ends of which are welded two circular flanges 104 and 105 provided with two internal threads 106 and 107 and a centering bore 108 (see also FIG. 7) intended to receive a cylindrical pin 109 used for guiding two crenellated rings 112 and 113.
  • Each flange 104 respectively 105 has six notches 110 distributed at 60 ° around its circumference. These indentations 110 allow the drawdown of the clamping lardons 111, also six in number.
  • the crenellated ring 112 is mounted on the end of the central tube 103 carrying the flange 104 to which it is fixed by means of two screws 114 engaging in the threads 106 and 107.
  • the crenelated ring 112 also has six bosses 115 distributed at 60 ° around its circumference. Each of the bosses 115 has a countersink 116 with a width substantially equal to the thickness of the clamping strips 111.
  • a pin cylindrical 117 passes right through each of the bosses 115 (see FIG. 7).
  • the crenellated ring 113 is similar in all respects to the crenelated ring 112. It is arranged so as to be able to move axially, at the end of the central tube 103.
  • Each clamping lard 111 has at its ends a countersink 118 inclined at 30 ° in which engages the cylindrical pin 117 driven through each of the bosses 115 of the crenellated rings 112.
  • This arrangement makes it possible to hold in place all the clamping strips 111 when no coil is engaged on the hub 10.
  • FIG. 5 shows the hub 10, in particular the clamping strips 111 in the position they occupy when a coil is tightened on the hub.
  • a clamping ring 120 In order to loosen the coil, that is to say to bring the clamping strips 111 into a radial position closer to the axis 70, provision has been made to mount, at the end 119 thereof, a clamping ring 120 (see figure 6).
  • this tightening ring 120, split at 121 and crossed by a screw 122 must be free to slide along the end 119 of the axis 70. To do this, it is necessary to loosen the screw 122.
  • the movement imparted to the lardons 111 for tightening or loosening the coils is obtained by acting on two screws 123 and 124 engaging in the threads 106 and 107 of the circular flange 105 and freely crossing the ring crenellated 113.
  • the clamping ring 120 is displaced axially, which allows, on loosening, the axial displacement of the ring crenellated 113 to the right of the figure and causes the movement of the clamping strips 111 in the direction of the axis 70.
  • the rewinding station 1 has six winding stations, but it is obvious that this number can be increased as required.
  • each player 14 to 14 will perform a different downward stroke and will maintain, under the effect of gravity, a tension in the strands of the metallic strip.
  • the portable players 14 to 14 will descend more and more, until one of them, arrived in position 13 ′ ( see figure 2) triggers its lower limit switch 18 to 18th.
  • This triggering will cause the reduction motor 9 to 9 concerned to be controlled and, thereby, the metallized strip to be wound on its take-up reel.
  • the player will be quickly reassembled and will trigger the upper limit switch 17 to 17th, which will have the effect of interrupting the power supply to the reduction motor and thereby the rewinding operation. Since the metallic strip always arrives at rewinding station 1, the player will descend and the cycle will start again.
  • One or the other of the metallized bands may break during work. If this happens, the player concerned will fall and trigger one of the band break switches 19 to 19. This trip will cause the machine to come to a complete stop and also cut off the power supply to the reduction motors 9 to 9e.
  • the operator will therefore be obliged, in these conditions, to use the elevator 40.
  • the crank 64 By actuating the crank 64, the latter will cause, by means of the drum 51 (see FIG. 3) and the cable 50, the rise of the transverse bar 41 which, in passing, will drive up all the portable players 14 to 14e and will thus make it possible to restore the circuit of the broken metallized strip.
  • the extension 68 of the axis 61 of the lifting device 52 will have actuated the switch 69 during the raising of the transverse bar 41 and, the circuit of the broken metallized strip having been re-established again, it will be necessary to return, using the lifting device 52, the transverse bar 41 to its lower position. During this operation, the switch 69 will be released and therefore the platen press and the rewinding station will again be put into operating conditions.
  • the user of such a rewinding device thus has in his hands a device which is simple to use, easy to adjust and which also has the advantage of a large linear travel of the portable players, thus making it possible, by playing on the elasticity of the bands. metallized materials used, to limit band breaks and thereby increase the productivity of the platen press with which the device is associated.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Advancing Webs (AREA)
  • Coating Apparatus (AREA)
  • Unwinding Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Fixing For Electrophotography (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Basic Packing Technique (AREA)
EP89113302A 1988-09-16 1989-07-20 Vorrichtung zum Wiederaufwickeln einer dünnen Bahn Expired - Lifetime EP0358890B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89113302T ATE82937T1 (de) 1988-09-16 1989-07-20 Vorrichtung zum wiederaufwickeln einer duennen bahn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3474/88 1988-09-16
CH3474/88A CH676840A5 (de) 1988-09-16 1988-09-16

Publications (3)

Publication Number Publication Date
EP0358890A2 true EP0358890A2 (de) 1990-03-21
EP0358890A3 EP0358890A3 (en) 1990-07-11
EP0358890B1 EP0358890B1 (de) 1992-12-02

Family

ID=4256753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113302A Expired - Lifetime EP0358890B1 (de) 1988-09-16 1989-07-20 Vorrichtung zum Wiederaufwickeln einer dünnen Bahn

Country Status (9)

Country Link
US (1) US4995564A (de)
EP (1) EP0358890B1 (de)
JP (1) JPH07102921B2 (de)
AT (1) ATE82937T1 (de)
BR (1) BR8904354A (de)
CA (1) CA1326846C (de)
CH (1) CH676840A5 (de)
DE (1) DE68903711T2 (de)
ES (1) ES2037346T3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09328246A (ja) * 1996-06-13 1997-12-22 Shikoku Kakoki Co Ltd ウェッブのアキュムレータ
DE19824798A1 (de) * 1998-06-03 1999-12-09 Indag Gmbh & Co Betriebs Kg Vorrichtung und Verfahren zum Zuführen von Folien
DE10063167B4 (de) * 2000-12-18 2009-10-29 Linde Material Handling Gmbh Antriebseinrichtung für eine Arbeitsmaschine mit einem Fahrantrieb und einer Arbeitshydraulik

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2097287A (en) * 1937-03-04 1937-10-26 Du Pont Wind-up mandrel
US2800326A (en) * 1954-02-10 1957-07-23 John L Berger Speed regulator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708554A (en) * 1950-07-29 1955-05-17 Remington Rand Inc Tape drive and recording apparatus
US2797089A (en) * 1953-12-04 1957-06-25 United States Steel Corp Mechanical accumulator in strip feeding devices
US2825016A (en) * 1954-02-15 1958-02-25 Westinghouse Electric Corp Electric motor control system
US2759680A (en) * 1954-02-26 1956-08-21 Ray W Johnson Expansible chuck
US3001736A (en) * 1956-02-08 1961-09-26 Rudolph H Schultz Self-adjusting mill-roll supporting mandrel
US3893636A (en) * 1972-02-08 1975-07-08 Garlock Inc Tape wrapping method, apparatus, and article
US3796360A (en) * 1972-09-27 1974-03-12 Alexeff Snyder Ets Combination storage festoon and compensator
JPS57144633A (en) * 1981-03-05 1982-09-07 Inoue Japax Res Inc Wire electrode feeder
US4635870A (en) * 1984-09-25 1987-01-13 Storage Technology Corporation Rell hub for a magnetic tape drive

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2097287A (en) * 1937-03-04 1937-10-26 Du Pont Wind-up mandrel
US2800326A (en) * 1954-02-10 1957-07-23 John L Berger Speed regulator

Also Published As

Publication number Publication date
DE68903711D1 (de) 1993-01-14
ES2037346T3 (es) 1993-06-16
DE68903711T2 (de) 1993-04-29
BR8904354A (pt) 1990-04-17
EP0358890A3 (en) 1990-07-11
ATE82937T1 (de) 1992-12-15
CH676840A5 (de) 1991-03-15
EP0358890B1 (de) 1992-12-02
CA1326846C (en) 1994-02-08
JPH07102921B2 (ja) 1995-11-08
US4995564A (en) 1991-02-26
JPH02117555A (ja) 1990-05-02

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