US3201057A - Web unwind apparatus - Google Patents

Web unwind apparatus Download PDF

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Publication number
US3201057A
US3201057A US299244A US29924463A US3201057A US 3201057 A US3201057 A US 3201057A US 299244 A US299244 A US 299244A US 29924463 A US29924463 A US 29924463A US 3201057 A US3201057 A US 3201057A
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United States
Prior art keywords
web
roll
turret
spool
unwind
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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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US299244A
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English (en)
Inventor
Ryan Danahey
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EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to US299244A priority Critical patent/US3201057A/en
Priority to DEP34780A priority patent/DE1294778B/de
Application granted granted Critical
Publication of US3201057A publication Critical patent/US3201057A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/43—Driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1852—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place at a distance from the replacement roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1868—The roll support being of the turret type
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C3/00—Packages of films for inserting into cameras, e.g. roll-films, film-packs; Wrapping materials for light-sensitive plates, films or papers, e.g. materials characterised by the use of special dyes, printing inks, adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/461—Processing webs in splicing process
    • B65H2301/4615—Processing webs in splicing process after splicing
    • B65H2301/4617—Processing webs in splicing process after splicing cutting webs in splicing process
    • B65H2301/46172—Processing webs in splicing process after splicing cutting webs in splicing process cutting expiring web only

Definitions

  • This invention relates to web handling apparatus and, more particularly, it relates to apparatus for use in continuously unwinding web from separate spools.
  • FIG. 1 shows an elevation view of a general arrangement of the apparatus of the invention
  • FIG. 2 shows a partial line 2- -2 of FIG. 1;
  • FIG. 3 is an enlarged sectional view of the turret supporting shaft assembly taken generally along line 3-4 of FIG. 2;
  • FIG. 4 is a sectional plan view taken generally along View taken along line 44 of FIG. 7 is an enlarged elevation view of the turret shown in FIG. 1 with the follower arm assemblies shown in detail;
  • FIG. 8 is a setional view taken along line 8-8 of FIG. 7 showing the details of the follower arm assemb l
  • FIG. 9 is an enlarged partial view of. the turret and related elements in the area adjacent the splicing mechanism;
  • FIG. 10 is an enlarged plan View of the camming face and related roll 85; i j
  • FIG. 11 is a partial plan view taken along line 1.1-4.1 ofFIG. 9.
  • the apparatus of this invention comprises essentially a circular, rotatable turret plate Ill on which are mounted two unwind spindle assemblies Ma and llb at opposite ends of the turret diameter.
  • Each spindle assembly is complemented by an unwind follower arm 12 and dancer roll assembly 13 and 3,Zdl,ll5fl7 Patented Aug. 17, 1965 their associated elements, respectively.
  • spindle assembly 11a and its complementary apparatus are described in detail; however, it is to be understood that the spindle assembly lib and its complements are structurally and functionally identical.
  • the web 78 emerges from the apparatus in the direction of the arrow; suit able means (not shown) are provided to drive the web in this direction, e.g., positively driven wind-up rolls or the like.
  • the turret assembly comprises a circular plate it) mounted at its axial center to a rotatable, hollow hub 14 which, in turn, is rotatably supported on a pair of spaced bearings 15a and 15b in a boxlike housing 16.
  • the housing 16 is rigidly secured to the main machine frame designated generally by numeral 17.
  • the hub 14 is shown to extend beyond the bearingslda and 15b at either end. Gne end is afiixed to the plate 10 and the other end is provided with a locking collar 18 that has two open slots 1% and 19b spaced apart and a pulley 26. Both the locking collar 18 and the pulley 2d are firmly keyed to the hub 14 for rotation therewith. Between the bearings lda and 15b inside the housing 16, a commercial slip ring assembly 21 (manufactured by the Breeze Corp.) is mounted on the hub 14 for rotation therewith.
  • the ring assembly 21 consists of a series of spaced electrically insulated disks 22 that have annular-shaped conductive rings 23 (see FIG. 4) on both faces.
  • Four of the rings 23 are splitinto 180 arclengths while the re maiiiing four-teen rings have full 360' lengths.
  • each ring 23 is contacted by a brush 24 which is mounted in a brush holder 25 aflixed to the housing 16.
  • the brush holder 25 carries a brush 24 which is electrica ly connected to one end of a power supply (not shown) which forms one-half of the electrical circuitry.
  • the conductors forming the other half of this circuitry are attached directly to the rings 23 inside the hub 14. The conductors are combined into a cable and emerge through an opening 26 in the hub 14 whereupon they connect to the various switch and load devices mounted on the turret assembly (not shown);
  • a spindle drive shaft 27' Shown inside the hollow hub 14 is a spindle drive shaft 27' rotatably mounted concentric with the hub 14 axis.
  • l-ulleys 2-3 and 29 are fixed at the turret end of the shaft 27 and by means of timing belts 3i and 31, respectively, engage pulleys 49 on the spindle assemblies 11:: and 11b as shown in FIG. 5.
  • the other end of the shaft 27 extends beyond the end of hub 14 and, as shown in FIG. 3, carries a pulley 32.
  • the pulley 32 engages a timing belt 33 which engages a similar pulley 34 fixed to the shaft of a constant torque motor 35, shown in FIG. 2, which is securely mounted to the machine frame 17.
  • the hub 1 may be locked in place by means of a dog 39 which enters either of the slots 19a or 1%; the dog it? is slidably journaled in a bracket 49 which is mounted to the housing id.
  • the dog 39 abuts the spring 41 which functions to urge the tapered end of the dog 39 into engagement with either slot.
  • the other end of the dog 39 is coupled by a pin 42 to the plunger 43 of a conventional solenoid (not shown) which, upon being energized, functions to withdraw the dog 39 from engagement with the slot in the collar 13.
  • the spindle 11a is an assemblage of rotating components contained in a hollow housing 44 mounted to the turret plate 1t). Within the housing 44 is a hollow shaft 45 rotatably supported on a pair of spaced frictionless bearings 45a and 45b and communicates on either end through the turret plate The portion of the shaft 45 on the front side of plate 1% is enlarged in diameter and has an open cavity.
  • the other end of the shaft 45 passing through to the back side of the plate 1%, is coupled to a shaft 45 upon which is mounted a commercial, electrical clutch-brake mechanism 47 (manufactured by the Simplatrol Corporation) housed in an extension 45 of the housing -34.
  • a pulley 49 is fixed to a rotating coil of the clutch portion of the clutchbrake 47 and is engaged by the belt 3-5 to the pulley 28 shown in FIG. 3.
  • the clutch coil (not shown) of the clutch-brake 47 When the clutch coil (not shown) of the clutch-brake 47 is energized, the clutch is thus engaged and the brake coil (not shown) is de-energized and the brake is released; thus, the motor 35 is coupled to the shaft 45 and exerts a reverse torque on the shaft 45; i.e., the direction of the motor torque is such as to re sist the force of the unwind drive meaues which causes the withdrawal of web 73 from a core as secured to the shaft 45. If the web is not being withdrawn, the shaft 45 will rotate in the reverse direction until downstream web slack is taken up and the shaft 45, thereafter, will stand still until the web is moved by some agency other than the motor 35.
  • a non-conducting sleeve 50 interposed between the bearings 45a and 45b is a non-conducting sleeve 50 affixed to the shaft 45 for rotation therewith.
  • Metal bands 51 and 52 are embedded about the circumference of the sleeve 59 and are in rubbing contact with a pair of stationary brushes 53 and 54.
  • the brushes 53 and 54 are juxtaposed in recesses in the housing 44 and are connected by insulated conductors (partially shown) to appropriate rings 23 of the slip ring assembly 21.
  • the metal bands 51 and 52 are connected by insulated conductors to an indicator lamp 55 shown threadedly attached at the base of the enlarged portion of the shaft 45.
  • a hollow adaptor 55 Threadedly attached within a cavity in the end of shaft 45 thus forming an extension of the latter.
  • the external end of the adaptor 55 is modified by a cam contour having flat surfaces 57a and 57:) separated by protruding lugs. Engaging these surfaces is the split tang 58 portion (see FIG. 6A) of a hollow knob 59.
  • the knob 59 is coupled to a flanged sleeve 66) which is slidably telescoped inside the hollow adaptor 56.
  • a spring 51 which abuts the flange of the sleeve 60 and an internal shoulder in the adaptor 56 urges the tang 58 against the cam surfaces.
  • a spring 62 anchored at one end to the knob 59 and at the other end to the adaptor 56, is interposed between the adaptor 56 and functions as a radially expandable means for frictional'ly chucking a spool or core 63.
  • a series of holes (not shown) spaced circumferentially on the hollow adaptor 56 provide rough adjustment of the spring 62 diameter. The diameter is adjusted to be slightly less than the inside diameter of the core 63. This facilitates mounting and removal of a core as from the spindle assembly. The final incremental increase in the spring 9. diameter for frictionally engaging the core 63 is accomplished by manually rotating the knob 59.
  • cam surfaces 57a and 57b limit the angular rotation of the knob 59 and function to maintain the spring 62 in the contracted condition during loading or unloading, the spring 62 being wound so as to expand when tang 58 rests against cam surface 57b.
  • a follower arm assembly 12 on the face of the turret 10 is pivotally supported on a shaft 64.
  • the follower arm 65 carries a roller 65 which is covered with an eiastomeric material which rides in contact with the outer periphery of a film roll 5% which is being unwound.
  • One end of the pivot shaft 64 is attached to the arm 65 while the other end, on the back side of the plate 18, is attached a radially adjustable counterweight as which shares the hub with one link 69 of a 4-bar linkage system.
  • the link 76 at the other end of the linkage system is gear-connected to the adjustable portion of a conventional variable autotransformer 71 which functions to control voltage in response to movement of the arm 65 and by that means, the torque output of the motor 35.
  • a conventional variable autotransformer 71 which functions to control voltage in response to movement of the arm 65 and by that means, the torque output of the motor 35.
  • the dancer roll assembly 13 consists of an arm 72 which is keyed to a shaft 73 which shaft is suitably journaled in the turret 10.
  • the shaft 73 On the back side of the turret 1d, the shaft 73 is keyed to a cam '74 that operatively engages cam follower 75 of a microswitch 76.
  • a roller 77 On the extremity of the arm 72, a roller 77 is rotatably journaled to contact the web 7%; during operation. During a normal unwinding operation, the roller 77 is supported by a loop in the web as shown in FIG.
  • a web guiding roll 79 is provided which is rotatably mounted in suitable antifriction bearings 150 on the main machine frame immediately to the right of the turret N.
  • the roll 79 and its mounting are shown in FIG. 11 where it may be seen that the back end of the shaft 152 carries a pair of antifriction bearings 151 upon which is mounted a pulley, 153.
  • the pulley 153 is engaged by a toothed belt 83 which also passes around adjustable pulley 85 (which is an idler), and pulley 154 on shaft 155, from which latter pulley 154 the belt 83 receives its power.
  • adjustable pulley 85 which is an idler
  • the rear part 7% of the roll 79' has a larger diameter than the front part which latter is the portion the web 73 passes over.
  • the dancer roll 77 has a larger diameter section 77a to the rear of the section that engages the web.
  • the bearings 151 were identified (above) as being of the antifriction type; however, despite the fact that these bearings roll on balls, some small amount of friction is pres ent. Therefore, when the pulley 153 is rotated (by the belt 83), the outer races of the bearings 151 will be rotated and then, by friction, the inner races will be rotated.
  • the advantage of this type construction is that, if the web is subjected to an acceleration from some other source, the roll 79 is capable of following the change in web speed; howeyer, the torque exerted on the roll by the web will be slight and, therefore, the possibility of damage to the web surface (e.g., due to relative slippage) is considerably decreased.
  • Roller 84 is mounted on shaft 81 which is journaled in antifriction bearings in the turret 10; each roll is associated with a dancer roll assembly 13 and is situated in close proximity to roll 77. In back of the turret, the
  • roll 84 is mounted on antifriction bearings 156 which, in turn, are mounted on the shafti155'; this shaft 155 is power driven by pulley 157 by belt 153.
  • the roll 84 is rotated at web speed by virtue of bearingfriction as described above for roll 79 with the same advantage.
  • rolls 84 and 83 are associated with a web splicing device, known as a wiper-roll splicer, which is fully described in my copending US. application, Serial No. 167,583, filed January 22, 1962. Because of its gentle acceleration characteristics, this web splicer together with the web unwinding device being described hereinforms a preferred embodiment though it is recognized that other web splicing devices known in the art may be used. In general, it should: be realized that the nature of theoperations being carried out downstream of theunwind device and the splicer is'such that it is permissible.
  • the wiper roll splicer is furnished with a slack takeup roll 159 as shown in FIG. 9 which is adapted to be driven in synchronism, at a 1-to-1 ratio, with the wiper roll 97 of the splicer by a means not shown.
  • the slack take-up roll 159 turns clockwise as the .wiper 101197 and the web move to the left thus, the roll 159 helps to urge the Web to the left. 1
  • a new sup-ply roll 90a is now mounted on the upper spindle assembly 11a and prepared for automatic splicing in the following manner. Assuming that the core 63 from some previous supply roll is still on the spindle, the operator manually removes it by pulling the knob 59 outward and rotating it clockwise. The tang 5% disengages from the cam surfaces 57b and enters cam sur face 57a thus causing the outside diameter of the torsion spring 62 to decrease, releasing the core 63.
  • the indicator lamp 55 in the-center of the hub provides a convenient means for assisting the operator in locating the spindle.
  • the leading end of the new roll 9% is manually withdrawn from the roll and the new web 78' is passed over web guide roll 95, under roll 9-6, under the slack take-up roll 159 and thence to the top of roll 97 where it is manually secured by means of a piece of pressure sensitive tape.
  • the manner in which the new web end/78' is secured to the roll 97 is fully described in U.S. application, Serial No. 167,583 (supra) and will not be repeated here.
  • the new roll 9tla and the new web 73 are left in a static condition pending the exhaustion of the film roll 9615.
  • the diameter of the roll 90b decreasesand this alters the load requirements on the torque motor 35.
  • the follower arm assembly 12 monitors the nominal diameter of the roll 9%. As the diameter decreases, the arm assembly 12 pivots and shifts the 4-bar linkage (69 and 7%) which, in turn, change the voltage setting of the auto-transformer 71 that controls the motor 65.
  • the solenoid 43 is ener- 'gized and the dog 39 is retracted which unlocks the turret it); simultaneously, the speed reducer motor 36 energizes to cause the turret 10 to begin to index clockwise for and the clutch-brake on upper spindle asssembly 11a is energized to engage the clutch and disengage the brake.
  • roll 81 is brought up to web speed by belt 83 and roll 77a is likewise brought up to web speed by contact with roll 79a.
  • the web passes from the top of roll 79 to the top of roll 84 without being deflected.
  • the web 78 is deflected downward by roll 80 and as roll 77 (on dancer roll assembly 13) is released.
  • the unwinding apparatus of this invention is highly advantageous for handling light-sensitive cine film, particularly since such handle must occur in the virtual absence of light. Further, the automatic indexing of the turret in such a manner as to have the film from the fresh spool automatically positioned, i.e., in a loop beneath the second dancer roll, is a distinct advantage.
  • a device for unwinding web from spools by the action of an unwind driving force comprising a turret, a pair of rotatable spindles on said turret each adapted to receive a spool, unwind torque means for resisting the rotation of each spindle caused by said driving force, sensing means for sensing the decreasing diameter of web on a spool, control means responsive to said sensing means for reducing the resisting torque of said unwind torque means thereby maintaining constant tension in said web as it is being unwound, means for detecting the exhaustion of the web from a spent spool, said turret having indexing means for positioning a fresh spool into position for being unwound upon being actuated by said detecting means, and means for splicing of the trailing end of said web to the lead end of the web from the fresh spool when actuated by said detecting means.
  • a device for unwinding web from spools by the action of an unwind driving force comprising a turret, a rotatable spindle on said turret adapted to receive a web containing spool, unwind torque means for resisting rotation of said spindle caused by said driving force, sensing means for sensing the decrease in diameter of web being unwound from said spool, control means responsive to said sensing means for reducing the resisting torque of said unwind torque means thereby maintaining a constant tension in said web as it is being unwound, turret indexing means for moving a fresh spool into position for unwinding and means for detecting the exhaustion of web from said spool being unwound thereby initiating said indexing means.
  • a device for unwinding web from spools by the action of an unwind driving force comprising a turret, a pair of rotatable spindles on said turret adapted to receive first and second spools, a dancer roll supportable by the web being unwound from said first spool, actuating means in association with said dancer roll which is activatable by said dancer roll upon the discontinuance of said supporting web and turret indexing means for rotating said turret and thereby positioning said second spool into a position for being unwound, said indexing means being activatable by said actuating means.
  • a device as defined in claim 3 including means for splicing the trailing end of said web unwound from said first spool to the leading end of the web to be unwound from said second spool.
  • a device as defined in claim 3 including a stationary rotatable roller over which said unwound web travels from its spool before passing around the bottom of and supporting said dancer roll thereby forming a loop in said unwound web.
  • a device for unwinding web from spools by the action of an unwind driving force the combination com prising a turret, a pair of rotatable spindles on said turret adapted to receive first and second spools, first and second dancer rolls on said turret, a stationary rotatable roller located adjacent said turret over which said web travels from said first spool before passing around the bottom of and supporting said first dancer roll, actuating means in association with said first dancer roll which is activatable by said first dancer roll upon the discontinuance of said supporting web, turret indexing means for rotating said turret responsive to exhaustion of the web from said first spool detected by said actuating means, means for supporting the web from said second spool above said stationary roller, and means for camming said second dancer roll away from said turret and stationary roller as the turret is indexed, the indexing movement bringing said second dancer roll down onto said web from said second s
  • a device for unwinding web from spools by the action of an unwind driving force comprising (1) a turret, (2) a pair of rotatable spindles on said turret adapted to receive first and second spools, (3) a dancer roll supportable by the web being unwound from said first spool, (4) actuating means in association with said dancer roll which is activated by said dancer roll upon the discontinuance of said supporting web, (5) means for temporarily stopping the movement of said web, (6) means for severing the trailing edge of the web unwound from said first spool, (7) turret indexing means for rotating said turret thereby moving said second spool into position for being unwound, and (8) splicing means for splicing said trailing endof said web unwound from said first spool to the leading end of the web to be unwound from said second spool, said means (5), (6), (7) and (8) being

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Replacement Of Web Rolls (AREA)
US299244A 1963-08-01 1963-08-01 Web unwind apparatus Expired - Lifetime US3201057A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US299244A US3201057A (en) 1963-08-01 1963-08-01 Web unwind apparatus
DEP34780A DE1294778B (de) 1963-08-01 1964-07-28 Vorrichtung zum Abwickeln aufgespulter Bahnen

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US299244A US3201057A (en) 1963-08-01 1963-08-01 Web unwind apparatus

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306546A (en) * 1964-11-04 1967-02-28 Du Pont Film splicing apparatus and process
US3374963A (en) * 1966-03-11 1968-03-26 Fmc Corp Apparatus for splicing traveling web material
US3385493A (en) * 1964-03-02 1968-05-28 Deering Milliken Res Corp Apparatus to control the speed of a fabric handling machine
US3525832A (en) * 1968-01-26 1970-08-25 Teletype Corp Three position tight tape switch
FR2333456A1 (fr) * 1975-12-01 1977-07-01 Molins Ltd Dispositif pour raccorder des bandes de papier de cigarettes
US4447957A (en) * 1981-07-28 1984-05-15 Sasib S.P.A. Roll diameter sensing device
US4697408A (en) * 1985-01-28 1987-10-06 Japan Tobacco, Inc. Apparatus for controlling amount of delivery in wrapping material feed system
WO1990014298A1 (en) * 1989-05-26 1990-11-29 Baxter International Inc. Automatic foil change unit
US6082661A (en) * 1997-07-18 2000-07-04 Focke & Co. (Gmbh & Co.) Method and device for handling adhesive webs
CN113562505A (zh) * 2021-09-26 2021-10-29 常州恒锌禹晟智能装备股份有限公司 锂电池隔膜生产用换卷机、换卷方法及生产线

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US2038353A (en) * 1935-04-06 1936-04-21 Breeze Corp Generator terminal shield
US2047280A (en) * 1933-02-01 1936-07-14 Irving Trust Co Paper roll stand for printing presses
US2196612A (en) * 1936-06-11 1940-04-09 Walter C Scott Web replenishing mechanism and control system
US2326680A (en) * 1937-09-01 1943-08-10 Wood Newspaper Mach Corp Web tensioning for web splicing machines
US2334160A (en) * 1939-06-29 1943-11-16 Wood Newspaper Mach Corp Web splicing device
US2366143A (en) * 1942-01-24 1944-12-26 Wood Newspaper Mach Corp Tension mechanism

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Publication number Priority date Publication date Assignee Title
DE621051C (de) * 1933-10-11 1935-11-01 Aeg Sicherheitseinrichtung fuer Bandkaltwalz- und -ziehmaschinen mit Ablauf- und Auflaufhaspel
DE1047795B (de) * 1955-09-17 1958-12-31 Maschf Augsburg Nuernberg Ag Vorrichtung zum Ankleben einer ablaufenden Papierbahn an eine neue Papierrolle, insbesondere bei Rotationsdruckmaschinen
DE1749744U (de) * 1956-05-09 1957-08-01 Dornbusch & Co Vorrichtung zum herstellen endloser warenbahnen aus auf warenbaeumen aufgewickelten einzelbahnen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2047280A (en) * 1933-02-01 1936-07-14 Irving Trust Co Paper roll stand for printing presses
US2038353A (en) * 1935-04-06 1936-04-21 Breeze Corp Generator terminal shield
US2196612A (en) * 1936-06-11 1940-04-09 Walter C Scott Web replenishing mechanism and control system
US2326680A (en) * 1937-09-01 1943-08-10 Wood Newspaper Mach Corp Web tensioning for web splicing machines
US2334160A (en) * 1939-06-29 1943-11-16 Wood Newspaper Mach Corp Web splicing device
US2366143A (en) * 1942-01-24 1944-12-26 Wood Newspaper Mach Corp Tension mechanism

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385493A (en) * 1964-03-02 1968-05-28 Deering Milliken Res Corp Apparatus to control the speed of a fabric handling machine
US3306546A (en) * 1964-11-04 1967-02-28 Du Pont Film splicing apparatus and process
US3374963A (en) * 1966-03-11 1968-03-26 Fmc Corp Apparatus for splicing traveling web material
US3525832A (en) * 1968-01-26 1970-08-25 Teletype Corp Three position tight tape switch
FR2333456A1 (fr) * 1975-12-01 1977-07-01 Molins Ltd Dispositif pour raccorder des bandes de papier de cigarettes
US4113197A (en) * 1975-12-01 1978-09-12 Molins Limited Cigarette paper splicing apparatus
US4447957A (en) * 1981-07-28 1984-05-15 Sasib S.P.A. Roll diameter sensing device
US4697408A (en) * 1985-01-28 1987-10-06 Japan Tobacco, Inc. Apparatus for controlling amount of delivery in wrapping material feed system
WO1990014298A1 (en) * 1989-05-26 1990-11-29 Baxter International Inc. Automatic foil change unit
US4986485A (en) * 1989-05-26 1991-01-22 Baxter International Inc. Automatic foil change unit
EP0426827A1 (de) * 1989-05-26 1991-05-15 Baxter International Inc. Automatische bogenwechselvorrichtung
EP0426827A4 (en) * 1989-05-26 1991-09-11 Baxter International Inc. Automatic foil change unit
AU627886B2 (en) * 1989-05-26 1992-09-03 Baxter International Inc. Automatic foil change unit
US6082661A (en) * 1997-07-18 2000-07-04 Focke & Co. (Gmbh & Co.) Method and device for handling adhesive webs
CN113562505A (zh) * 2021-09-26 2021-10-29 常州恒锌禹晟智能装备股份有限公司 锂电池隔膜生产用换卷机、换卷方法及生产线
CN113562505B (zh) * 2021-09-26 2021-12-14 常州恒锌禹晟智能装备股份有限公司 锂电池隔膜生产用换卷机、换卷方法及生产线

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