EP0721905B1 - Procédé et dispositif de préparation de l'ouverture d'une bobine - Google Patents
Procédé et dispositif de préparation de l'ouverture d'une bobine Download PDFInfo
- Publication number
- EP0721905B1 EP0721905B1 EP94810716A EP94810716A EP0721905B1 EP 0721905 B1 EP0721905 B1 EP 0721905B1 EP 94810716 A EP94810716 A EP 94810716A EP 94810716 A EP94810716 A EP 94810716A EP 0721905 B1 EP0721905 B1 EP 0721905B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reel
- flat blade
- turn
- blade
- parallel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000005520 cutting process Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 4
- 230000037431 insertion Effects 0.000 claims 4
- 238000002360 preparation method Methods 0.000 description 10
- 238000000926 separation method Methods 0.000 description 10
- 238000000576 coating method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- 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
- B65H19/105—Opening of web rolls; Removing damaged outer layers; Detecting the leading end of a closed web roll
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- 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
- B65H2301/4604—Opening web rolls, remove outer layers
- B65H2301/46044—Opening web rolls, remove outer layers by cutting or perforating in tranverse direction
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- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S83/00—Cutting
- Y10S83/929—Particular nature of work or product
- Y10S83/949—Continuous or wound supply
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/343—With means to deform work temporarily
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/525—Operation controlled by detector means responsive to work
- Y10T83/538—Positioning of tool controlled
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/748—With work immobilizer
- Y10T83/7487—Means to clamp work
- Y10T83/7493—Combined with, peculiarly related to, other element
- Y10T83/75—With or to tool guide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/748—With work immobilizer
- Y10T83/7487—Means to clamp work
- Y10T83/7493—Combined with, peculiarly related to, other element
- Y10T83/7513—Tool or tool support on movable clamp jaw
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/748—With work immobilizer
- Y10T83/7487—Means to clamp work
- Y10T83/7573—Including clamping face of specific structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8737—With tool positioning means synchronized with cutting stroke
- Y10T83/8739—Anvil moves into and out of operative position
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8745—Tool and anvil relatively positionable
- Y10T83/8746—Straight line
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8748—Tool displaceable to inactive position [e.g., for work loading]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8821—With simple rectilinear reciprocating motion only
- Y10T83/8822—Edge-to-edge of sheet or web [e.g., traveling cutter]
Definitions
- the present invention relates to a method and a device for preparation of the opening of a reel made of a strip of material flexible wound in superimposed turns and having an upper turn the free end of which is fixed to the turn which is directly below it, said coil being arranged on a support axis and comprising two sides parallel.
- the method and the device according to the invention apply particularly good at relatively narrow coils, i.e. delivering a strip having a maximum width of the order of a few centimeters.
- the upper coil turn is covered with a protective strip, made of a material which may be different of that constituting the coil; by upper turn of the coil is meant in the following description, this possible protective strip as well as the or the first turns of the coil.
- the closest prior art to be considered is disclosed by the request DE-A-32.15.355.
- the device described comprises a support bar on which are mounted a cutting blade and a coil separation blade, the separation of the turns as well as the cut being controlled simultaneously by the movement of the support bar.
- This device includes many disadvantages: the planned construction does not allow to adjust the distance between the support bar and the separating blade, on the other hand it is quite difficult to minimize the height of the flange on which the blade is fixed separation, causing an excessive number of turns to be cut; on the other hand, it suffices that the spring effect of the separation blade is reduced, for example after long use, so that the tightening effect between the support bar and the separation blade is no longer guaranteed, so it is possible to have one or more turns of the strip between the separation blade and the support bar that is not properly sectioned; the support bar directly resting on the upper turns, these are compressed which does not facilitate the introduction of the separation blade; the simultaneity of movements in advance of the support bar pressing on the last turn, separation and cutting blade causes the turns to move cut as well as damage to the coil placed directly under the separation blade and does not allow a clean cut of the turns to be cut; the device described does not allow several passages of the knife and, given the fixing of the cutting blade. on the support bar, exchanging a worn cutting blade is difficult
- An object of the invention is therefore to propose a compatible method with known reel opening methods, not meeting the disadvantages of the means of the prior art and making it possible to ensure that the turn directly below the last cut turn is absolutely intact, even if the upper turns of the coil are wrapped fairly tightly.
- Another object of the invention is to propose a device for preparation of the opening of a coil which can be adapted on a device opening of a known coil and keeping the coil located intact directly below the last cut turn, even if the turns upper parts of the spool are wound fairly tightly.
- Figure 1 shows a cutting preparation device 1 arranged above a coil 2 fixed to a support pin (not shown) and comprising a plurality of turns 20 including in particular an upper turn 21 of which the front end is glued to the turn which is directly below it in order to close the coil.
- Coil 2 can still be defined by its two surfaces lateral forming its two parallel sides 22.
- the device 1 firstly comprises a first actuator 10, for example a hydraulic or pneumatic cylinder whose external cylinder is fixed to a machine frame 3 by known means 30.
- the means 30 allow movement of device 1 in order to bring it above coil 2 to prepare its opening and then retract said device so that it does not interfere the subsequent operations to be carried out on the spool.
- the external body of the actuator 10 respectively the cylinder of the jack, is fixed and immobile with respect to to the coil 2.
- the actuator 10 comprises a movable rod 11, capable of move in one direction or the other, in a perpendicular direction to the support axis of the coil and directed towards said support axis.
- the end of the movable rod 11 of the jack 10 is fixed to a first support 12 extending parallel to the support axis of the coil, preferably behind the coil 2, as can be seen particularly in FIG. 2.
- Guide means 12A prevent rotation of the support 12 in order to keep the support 12 always aligned with the coil support axis.
- a baluster 12B maintains a blade support 13 at a vertical distance determined and fixed relative to the support 12.
- a flat blade 13A can slide inside the blade support 13, in a direction parallel to the axis support of the coil 2, passing from a retracted position as seen on the Figure 2 at an advanced position towards the coil 2, as seen in Figure 4.
- the movement of advance or withdrawal of the flat blade 13A is obtained by a second motion actuator 13B, pneumatic or hydraulic included in the blade support 13.
- a double set of braces 15 each consisting of a pair of bars 15A and 15B is arranged on each side of the support 14 parallel to the sides of coil 2 and below said support.
- a first central axis 16 connects each of the crosspieces 15 by a position preferably central of each of the bars 15A and 15B, allowing said bars to pivot around said first central axis.
- the upper end of each of the bars 15A is fixed, each on an opposite face of the support 14, by means a second axis 16A, passing through said support and allowing said bars to pivot simultaneously around said second axis.
- the upper extremities bars 15B are likewise connected by a third axis 16B, said axis being sliding in a direction perpendicular to the axis of the coil 2 thus that in the direction of movement of the first movable rod 11, in a borehole 14A through and extending in the direction of the second axis 16A, of the support 14.
- the end of the support 14 distal from that fixed to the support 12 supports a third actuator 17, which can also be a pneumatic or hydraulic cylinder, comprising a second movable rod 17A, fixed by its end to the axis 16B and able to move said axis parallel to itself in the bore 14A, according to the direction defined above.
- each bars 15A and each of the bars 15B are connected by two fourth axes 16C, said axes not being pivotable relative to bars 15A or to bars 15B.
- the two 16C axes each support a friction lining 18 interconnecting and being arranged below the lower ends two opposite bars 15A, respectively two opposite bars 15B.
- the friction linings 18 are therefore parallel to the support axis of the coil 2 and are each covered, on their side facing coil 2, a coating with a high coefficient of friction with respect to the material constituting the turns 20 of the coil, for example rubber.
- the contact surfaces of said coatings are rounded, ridges longitudinal can be provided on these surfaces.
- the spacing between the two opposite cross-pieces 15, respectively the length of the friction linings 18, is at least equal to the width of the strip of material constituting the coil 2.
- each of the bars 15A pivots around the axis 16A
- each bars 15B pivots in the opposite direction around the axis 16B
- the ends of each of the bars respectively the contact surfaces of the linings 18 swivel slightly against each other.
- a cutting device 4 comprising in particular a cutting blade 40 which is arranged in position Wait.
- the coil 2 is stationary on its support axis.
- the means 30, allowing to bring the preparation device 1 are actuated in order to position said device near the upper turn 21, the two friction linings 18 slightly above the coil 21, being parallel to the axis of the coil and not being in contact with the coil 21 while the blade 13A is positioned a few tenths of a mm below the upper surface of the upper turn 21.
- the distance from said surface greater than which the flat blade 13A is arranged depends essentially on the thickness of the strip of material constituting the upper turn 21.
- the actuator 10 maintains the movable rod 11 in the retracted position, while the actuator 13B maintains the flat blade 13A in the retracted position and that the actuator 17 maintains the axis 16B in a position remote from the axis 16A.
- the determination from this starting position of the device 1 relative to the coil 2 can be done manually or automatically by means of a position (not shown, but may be of the same type as that described more bottom next to the second embodiment of the device) coupled to a control unit 9, capable of determining that the device is positioned correctly above the turn 21 and that the flat blade 13A is positioned correctly with respect to said turn.
- actuator 17 is actuated, which brings the axis 16B closer to the axis 16A causing the movements described above, either a descent of the contact surfaces of the friction linings 18 in contact with and resting on the coil 21, and a bringing together of the two say fittings accompanied by their pivoting movement.
- These movements of the two linings 18 were sufficient, as soon as these entered contact with upper coil 21, pinch it slightly and then lift it and create an arch 21A between the two linings 18, as seen in the figure 3.
- This arch 21A on the coil 21 is therefore caused by the combination of the movements described, first of all a strong contact between the linings 18 and two surfaces distant from the coil 21, then by the bringing together and the pivoting of the two linings which, given the high coefficient of friction of their coating, do not slide on the coil 21.
- the actuator 17 is stopped, while the actuator 13B is activated in order to advance the flat blade 13A so that its end passes into the space included under the arch 21A, i.e. between the upper turn 21 and the turns of the lower layers 20.
- the flat blade 13A is held in this position and the device cutting blade 4, respectively the cutting blade 40, is brought between the bars of the cross 15, directly above the arch 21.
- the means by which the blade 40 is actuated are not part of the preparation device according to the invention, but from one of the cutting devices described in one of the patents mentioned in the introduction.
- the blade 40 can thus cut the arch 21A, respectively the upper turn 21 by sinking only to the blade plate 13A against which it finally comes into abutment. So the flat blade 13A has protected the first of the turns of the lower layers 20 which cannot therefore not be started by the blade 40.
- the end of the blade plate 13A penetrating between two turns of the coil 2 is of rounded shape so not to hurt the turns.
- the cutting blade 40 is removed, then the flat blade 13A by the actuator 13B, then the actuator 10 is again actuated in order to separate the linings 18 from the turn 21 and the means 30 move the device 1 away from the coil 2.
- the means by which the upper end of the coil 21 is gripped in order to be brought to the manufacturing machine are also not described here since they are in the patents cited above.
- the cutting was carried out only on the upper turn 21, in fact the arch 21A is formed of several of the upper turns of the coil, possibly with the protective strip mentioned above, so that several turns are then cut.
- the device for preparing the opening of a reel has been described above according to a preferred embodiment, it is obvious that variants of this embodiment can be provided; in particular it is not not at all necessary that the device 1 be placed above the coil 2 in a vertical position, in fact it could be oriented in any angle to the center of the spool, provided that the relative angles of the various movements described are preserved. Likewise the actuators described as being pneumatic or hydraulic cylinders could be made of any element capable of producing the movements described.
- Another embodiment of the means making it possible to bring the two axes 16A and 16B could also be provided, for example a rod having two sections threaded in opposite directions, rotated by the actuator 17, each of the threaded sections passing through a threaded hole of axis 16A, respectively axis 16B.
- the axis central 16 has been described as being disposed in a central position of each of the bars 15A and 15B; in fact it could be shifted so that have a movement of the linings 18 multiplied or divided with respect to the movement bringing together the two axes 16A and 16B.
- the support 14 supporting the cross-pieces 15 and the friction linings 18 is independent of the support 12 supporting the blade 13A, so able to be moved away from the coil 2 after the blade 13A has been inserted in the coil in order to leave sufficient space for the device, if necessary cutting 4.
- FIG. 5 Another embodiment of an opening preparation device of a coil is shown in Figures 5 to 8.
- a coil 2 comprising a plurality of turns 20 and in particular an upper turn 21 is fixed on a support axis not shown.
- the preparation device is here composed of a device blade holder 5, a position detection device 6 and a control unit 9; it can be completed with a blowing device 7.
- These different elements are shown separated from each other to make the figures clearer, but it is obvious that they are part of the same whole and are connected to a common plate comprising displacement means suitable for bringing said elements into an action position close to coil 2.
- the device blade holder 5 includes a flat blade 50, absolutely similar to the blade plate 13A described above, and being able to take a retracted position, as in figure 6, or an advanced position, as in figure 8, under the effect of an actuator 51.
- the blade holder 5 is mounted on another actuator 52 able to very precisely position the flat blade 50 relative to the upper turn 21 of the coil 2 as will be seen below. Since the coils to open may not all have the same diameter, it is necessary to detect the position of the upper turn 21.
- a device is provided 6 position detection of said upper turn, consisting of another actuator 60 fitted with a touch element 61, preferably a roller, which, positioned first clearly above the upper turn 21, as shown in Figure 5, then lowers the finger 61 to what it comes into contact with the upper turn 21, as seen in the Figure 7. This position is noted by the control unit 9 which can then activate the actuator 52 in order to place the flat blade 50 a few tenths of mm below the dimension corresponding to the upper surface of the coil upper 21.
- the distance from said upper surface at which the flat blade 50 is arranged essentially depends on the thickness of the strip of material constituting the coil 2. Taking into account that the turns of the coil 2 are not too tight, the blade 50 is gently inserted under the upper turn 21, preferably for the reason indicated above in look of the first embodiment, under at least two of the upper turns.
- This advance movement of the flat blade 50 can then be carried out the coil 2 is stationary or when it is animated by a slow rotational movement in the direction from roller 61 towards the blade flat 50.
- the direction of this rotational movement is opposite to that of the normal unwinding of the reel so that, during this movement of rotation, the flat blade 50 tends to be pushed up by the winding in spiral of the coil turns.
- the roller 61 can continue to detect the position of the upper layer 21 in order to correct the position of the flat blade 50 in the case where the coil 2 is not not exactly circular.
- the spool is stopped in case it has been rotated and, as for the first embodiment described, a cutting device 4 is approached in order to cut the turns arranged above the flat blade 50, by not cutting only these, the cutting movement being limited by the flat blade 50.
- the preparation device can be completed by a blowing device 7, essentially consisting of a blowing nozzle 70, which projects a jet of pressurized air directly above the flat blade 50, in the direction of the coil 2, in order to help lift the turns superior, thus facilitating the penetration of the flat blade 50.
- the means of detection 6 can also be designed so as not to come into contact with the upper turn 21, for example be made up of detection means optics.
- a preparation device allows, in cooperation with a device cutting and gripping the upper turns of a coil, obtaining a strip of intact material for later use, said strip having not been damaged by the cutting device.
Landscapes
- Replacement Of Web Rolls (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Description
Claims (17)
- Procédé de préparation de l'ouverture d'une bobine (2) constituée d'une bande d'un matériau souple enroulée en spires superposées (20) et comportant une spire supérieure (21) dont l'extrémité libre est fixée sur la spire qui lui est directement inférieure, ladite bobine étant disposée sur un axe support et comportant deux flancs parallèles (22), l'ouverture de la bobine étant préparée en agissant sur toute sa largeur, ce procédé étant caractérisé en ce qu'une lame plate (13A;50) est introduite entre deux spires successives (20,21) par le flanc (22) de la bobine, au moins une spire (21) étant disposée par dessus la lame plate.
- Procédé selon la revendication 1, caractérisé en ce que deux garnitures de frottement (18) constituées de deux éléments allongés, parallèles et disposés parallèlement à l'axe support de la bobine (2) sont appliquées simultanément avec une certaine pression sur deux portions de surface de la spire supérieure (21), les deux garnitures de frottement (18) étant ensuite légèrement rapprochées l'une de l'autre, de manière à chacune entraíner la portion de surface sur laquelle elle est appuyée, afin de former une arche (21A) constituée d'une portion d'au moins la spire supérieure (21), la lame plate (13A) étant ensuite introduite sous ladite arche (21A).
- Procédé selon la revendication 2, caractérisé en ce que chacune des deux garnitures de frottement (18) est en outre animée d'un mouvement de rotation autour d'un axe (16A,16B) parallèle à l'axe de la bobine (2), chacun des deux dits mouvements de rotation étant de sens opposé et tendant à la création de ladite arche (21A).
- Procédé selon la revendication 1, caractérisé en ce que des moyens de soufflage (7) d'un jet d'air sont prévus afin de soulever au moins la spire supérieure (21) lors de l'introduction de la lame plate (50).
- Procédé selon l'une des revendications précédentes, caractérisé en ce que la bobine (2) est immobile durant toutes les étapes du procédé.
- Procédé selon l'une des revendications 1 ou 4, caractérisé en ce que la bobine (2) est animée d'un mouvement de rotation à vitesse réduite lors de l'introduction de la lame plate (50).
- Procédé selon la revendication 6, caractérisé en ce qu'une roulette (61) est appuyée sur la spire supérieure (21) lors de l'introduction de la lame plate (50).
- Procédé selon l'une des revendications précédentes, caractérisé en ce que après introduction de la lame plate (13A;50), l'ouverture de la bobine peut être commandée en actionnant un dispositif de coupe (4) comportant une lame de coupe (40) pour une opération de coupe, sectionnant uniquement la ou les spires (21) disposées par dessus la lame plate (13A;50), ladite lame de coupe (40) venant en butée contre ladite lame plate (13A;50) après ladite opération de coupe.
- Dispositif pour la préparation de l'ouverture d'une bobine (2) constituée d'une bande d'un matériau souple enroulée en spires superposées (20) et comportant une spire supérieure (21) dont l'extrémité libre est fixée sur la spire qui lui est directement inférieure, ladite bobine (2) étant disposée sur un axe support et comportant deux flancs parallèles (22), l'ouverture de la bobine étant préparée en agissant sur toute sa largeur, ce dispositif étant caractérisé en ce qu'il comprend en particulier une lame plate (13A;50) montée sur un support de lame (13,5), ledit support de lame étant monté sur des moyens de déplacements (10;52) aptes à positionner la lame plate (13A;50) à une distance déterminée de la surface supérieure de la spire supérieure (21) et comportant d'autres moyens de déplacement (13B;51) aptes à faire avancer la lame plate (13A;50) entre deux spires successives (21,20) par le flanc (22) de la bobine.
- Dispositif selon la revendication 9, caractérisé en ce qu'il comprend en outre deux garnitures de frottement (18) constituées de deux éléments allongés, parallèles et disposés parallèlement à l'axe support de la bobine, aptes à être appliquées simultanément avec une certaine pression sur deux portions de surface de la spire supérieure (21), les deux garnitures de frottement (18) étant aptes ensuite à être légèrement rapprochées l'une de l'autre, de manière à chacune entraíner la portion de surface sur laquelle elle est appuyée, afin de former une arche (21A) constituée d'une portion d'au moins la spire supérieure (21), la lame plate (13A) pouvant ensuite être introduite sous ladite arche (21A).
- Dispositif selon la revendication 10, caractérisé en ce qu'il comprend en outre deux croisillons (15) opposés disposés selon deux plans espacés parallèles aux flancs (22) de la bobine (2), chacun desdits croisillons (15) étant constitué d'une paire de barres (15A,15B), les barres (15A,15B) de chacun desdits croisillons (15) et les croisillons entre eux étant reliés par un axe central (16) de pivotement parallèle à l'axe support de la bobine (2) et passant par une position généralement centrale de chaque barre (15A,15B), les extrémités inférieures de chacune des deux barres opposées des deux croisillons étant reliées par une garniture de frottement (18) parallèles entre elles et avec l'axe support de la bobine (2), les extrémités supérieures de chacune des deux barres opposées des deux croisillons (15) étant reliées par un axe supérieur (16A,16B) parallèles entre eux et avec l'axe support de la bobine (2), au moins un desdits axes supérieurs (16B) pouvant être mû par des moyens de déplacement (17,17A) afin de rapprocher lesdits axes supérieurs (16A,16B) selon une direction perpendiculaire à l'axe de la bobine (2) et au diamètre de la bobine passant par ledit axe central (16), le rapprochement desdits axes supérieurs (16A,16B) provoquant, par un effet de ciseau de chacun des croisillons (15), un appui de chacune des garnitures de frottement (18) sur une portion de surface de la spire supérieure (21), un rapprochement et un pivotement selon des sens opposés de chacune des deux garnitures de frottement (18) afin de former une arche (21A) constituée d'une portion d'au moins la spire supérieure (21).
- Dispositif selon l'une des revendications 10 ou 11, caractérisé en ce que les garnitures de frottement (18) sont recouvertes d'un matériau ayant un fort coefficient de frottement par rapport au matériau constituant la spire supérieure (21).
- Dispositif selon l'une des revendications 9 à 12, caractérisé en ce qu'il comprend en outre des moyens de détection (6,61) de la position de la spire supérieure (21) ainsi que des moyens de commande (9) aptes à commander le déplacement de la lame plate (13A;50) en position pour pénétrer entre deux spires (20,21) de la bobine (2), en fonction de la position détectée de la spire supérieure (21).
- Dispositif selon la revendication 9, caractérisé en ce qu'il comprend en outre des moyens de projection (7,70) d'un jet d'air orienté en direction de la surface supérieure de la lame plate (50) ainsi que du flanc (22) de la bobine (2).
- Dispositif selon l'une des revendications 9 à 14, caractérisé en ce qu'il comprend en outre des moyens permettant de conserver la bobine (2) immobile.
- Dispositif selon l'une des revendications 9, 13 ou 14, caractérisé en ce qu'il comprend en outre des moyens permettant de mettre la bobine (2) en rotation autour de son axe support, selon une faible vitesse.
- Dispositif selon l'une des revendications 9 à 16 caractérisé en ce qu'il est associé à un dispositif de coupe et de saisie de l'extrémité coupée de la spire supérieure (21) comportant en particulier une lame de coupe (40) pouvant venir sectionner la ou les spires (21) disposées par dessus la lame plate (13A;50), ladite lame de coupe (40) venant en butée contre ladite lame plate (13A;50) après l'opération de coupe.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP94810716A EP0721905B1 (fr) | 1994-12-12 | 1994-12-12 | Procédé et dispositif de préparation de l'ouverture d'une bobine |
| DE69430064T DE69430064T2 (de) | 1994-12-12 | 1994-12-12 | Verfahren und Vorrichtung zum Vorbereiten des Öffnens eines Bahnwickels |
| DE69522303T DE69522303T2 (de) | 1994-12-12 | 1995-12-01 | Verfahren und Vorrichtung zum Vorbereiten und Öffnen eines Bahnwickels |
| EP95810754A EP0716996B1 (fr) | 1994-12-12 | 1995-12-01 | Procédé et dispositif de préparation et d'ouverture d'une bobine |
| US08/570,278 US6227088B1 (en) | 1994-12-12 | 1995-12-11 | Apparatus for opening paper bobbins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP94810716A EP0721905B1 (fr) | 1994-12-12 | 1994-12-12 | Procédé et dispositif de préparation de l'ouverture d'une bobine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0721905A1 EP0721905A1 (fr) | 1996-07-17 |
| EP0721905B1 true EP0721905B1 (fr) | 2002-03-06 |
Family
ID=8218351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94810716A Expired - Lifetime EP0721905B1 (fr) | 1994-12-12 | 1994-12-12 | Procédé et dispositif de préparation de l'ouverture d'une bobine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6227088B1 (fr) |
| EP (1) | EP0721905B1 (fr) |
| DE (2) | DE69430064T2 (fr) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10242736A1 (de) * | 2002-09-13 | 2004-03-18 | Voith Turbo Gmbh & Co. Kg | Antriebseinheit mit einem Retarder |
| EP1400471A1 (fr) * | 2002-09-17 | 2004-03-24 | Hauni Maschinenbau AG | Procédé pour ouvrir des bobines et dispositif pour la mise en oeuvre de ce procédé |
| DE10343451A1 (de) * | 2003-09-19 | 2005-04-14 | Voith Paper Patent Gmbh | Vorrichtung zum Entfernen von Lagen eines Wickels von einem Wickeltambour |
| DE10343423A1 (de) * | 2003-09-19 | 2005-04-14 | Voith Paper Patent Gmbh | Vorrichtung und Verfahren zum Entfernen von Ausschuss einer Materialbahn von einem Wickeltambour |
| DE10343419A1 (de) * | 2003-09-19 | 2005-04-14 | Voith Paper Patent Gmbh | Vorrichtung und Verfahren zum Entfernen von Ausschuss einer Materialbahn von einem Wickeltambour |
| DE10343454A1 (de) * | 2003-09-19 | 2005-04-14 | Voith Paper Patent Gmbh | Anordnung mit einem Wickeltambour |
| DE10343449A1 (de) * | 2003-09-19 | 2005-04-14 | Voith Paper Patent Gmbh | Vorrichtung und Verfahren zum Entfernen eines Streifens von einem Wickel einer Faserstoffbahn auf einem Wickeltambour |
| DE10343420A1 (de) * | 2003-09-19 | 2005-04-14 | Voith Paper Patent Gmbh | Vorrichtung und Verfahren zum Entfernen von Ausschuss einer Materialbahn von einem Wickeltambour |
| DE10343446A1 (de) * | 2003-09-19 | 2005-04-14 | Voith Paper Patent Gmbh | Verfahren und Vorrichtung zur Entnahme mindestens eines Streifens von einem Wickel einer Materialbahn auf einem Wickeltambour |
| DE10343452A1 (de) * | 2003-09-19 | 2005-04-14 | Voith Paper Patent Gmbh | Vorrichtung zum Entfernen von Lagen eines Wickels einer Faserstoffbahn von einer Wickeltrommel |
| US7779724B2 (en) * | 2004-04-19 | 2010-08-24 | Shimano Inc. | Electrical bicycle shift control device |
| DE102004043102A1 (de) * | 2004-09-07 | 2006-03-09 | Man Roland Druckmaschinen Ag | System und Verfahren zum Auspacken einer Druckpapierrole |
| DE102005005371A1 (de) * | 2005-02-05 | 2006-08-10 | Voith Paper Patent Gmbh | Verfahren und Vorrichtung zum Abwickeln einer Materialbahn von einer Materialbahnrolle |
| EP1810925A1 (fr) * | 2006-01-24 | 2007-07-25 | Metso Paper AG | Procédé pour déballer un rouleau de papier et appareil pour mettre en oeuvre ledit procédé |
| JP2007290859A (ja) * | 2006-03-31 | 2007-11-08 | Komori Corp | 巻取紙仕立装置 |
| US20070227672A1 (en) * | 2006-03-31 | 2007-10-04 | Komori Corporation | Apparatus for preparing roll of paper |
| US20070227673A1 (en) * | 2006-03-31 | 2007-10-04 | Komori Corporation | Apparatus for preparing roll of paper |
| ITBO20070673A1 (it) * | 2007-10-03 | 2009-04-04 | Corima Internat Machinery S R | Macchina per la recisione dell'involucro cartaceo di avvolgimento di prodotti, in particolare di pile di coperchi |
| US9637263B2 (en) * | 2010-10-20 | 2017-05-02 | Siemens Industry, Inc. | Film-wrapped bundle opener |
| WO2017183553A1 (fr) * | 2016-04-18 | 2017-10-26 | 株式会社瑞光 | Procédé et appareil pour couper la couche la plus à l'extérieur d'un rouleau de tissu original |
| JP6797191B2 (ja) * | 2016-04-18 | 2020-12-09 | 株式会社瑞光 | 原反ロールの表皮の除去方法およびシステム |
| JP7147547B2 (ja) * | 2018-12-25 | 2022-10-05 | 株式会社リコー | 記録媒体切断装置、液体吐出装置 |
| EP3988484B1 (fr) * | 2020-10-21 | 2024-04-24 | Fameccanica.Data S.p.A. | Procédé et appareil de préparation de bords de bobines de matériau en bande |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1914528A (en) * | 1929-12-31 | 1933-06-20 | Dunlop Tire & Rubber Corp | Cutting fork |
| US2747666A (en) * | 1952-03-19 | 1956-05-29 | Columbus Coated Fabrics Corp | Slitting machine having two laterally movable outer knives and a center knife maintained midway between the outer knives |
| US3121300A (en) * | 1962-02-01 | 1964-02-18 | Francesco V Rossi | Carton handling device |
| JPS5268594A (en) * | 1975-12-05 | 1977-06-07 | Toyo Seikan Kaisha Ltd | Method and device for cutting open rattannlike package |
| DE3004952C2 (de) * | 1980-02-09 | 1982-02-18 | Schloemann-Siemag AG, 4000 Düsseldorf | Vorrichtung zum Abtrennen von Schopfenden bzw. Probestreifen von zu Bunden aufgewickeltem Metallband |
| JPS5918975Y2 (ja) * | 1980-03-14 | 1984-06-01 | 大和製缶株式会社 | 円柱状包装体の紙袋切開装置 |
| IT1150853B (it) | 1981-05-13 | 1986-12-17 | Hauni Werke Koerber & Co Kg | Dispositivo per separare strati di carta |
| DE3215355A1 (de) * | 1981-05-13 | 1982-12-02 | Hauni-Werke Körber & Co KG, 2050 Hamburg | Papierlagentrennvorrichtung |
| US4437223A (en) * | 1982-03-05 | 1984-03-20 | Mesta Machine Company | Apparatus for debanding coiled strip |
| JPS58203033A (ja) * | 1982-05-24 | 1983-11-26 | Bridgestone Corp | 未加硫ゴムシ−ト切断装置 |
| IT1178613B (it) * | 1983-11-24 | 1987-09-09 | Hauni Werke Koerber & Co Kg | Dispositivo cambia bobine |
| DE3863761D1 (de) | 1987-11-12 | 1991-08-22 | Tabac Fab Reunies Sa | Verfahren und maschine zum aneinanderfuegen von papierstreifen fuer die ununterbrochene zufuhr an eine maschine, insbesondere fuer die herstellung von zigaretten. |
| EP0331634B1 (fr) | 1988-02-25 | 1992-05-20 | Fabriques De Tabac Reunies S.A. | Procédé et appareil d'ouverture d'une bobine faite d'une bande de papier |
| US4821971A (en) * | 1988-03-17 | 1989-04-18 | Kabushiki Kaisha Kaneda Kikai Seisakusho | Device for peeling and cutting off surface portions of paper rolls |
| US4984750A (en) * | 1988-07-01 | 1991-01-15 | Tokyo Automatic Machinery Works Ltd. | Method and apparatus for replacing web-like material in a web-like material supplying device |
| DE3918552C2 (de) * | 1989-06-02 | 1996-07-11 | Kaneda Kikai Seisakusho Toyona | Maschine zum Vorbereiten von Papierrollen für den Spleißvorgang |
| EP0475886B1 (fr) | 1990-08-24 | 1994-11-09 | Fabriques De Tabac Reunies S.A. | Procédé et dispositif d'ouverture d'une galette de papier et de raccordement d'une extrémité d'une bande de papier à une extrémité d'une autre bande de papier |
| DE4035919C2 (de) * | 1990-11-12 | 1998-01-22 | Weda Roland Werner Gmbh | Nachschneidevorrichtung für Schlaufen, insbesondere Gürtelschlaufen |
| US5467676A (en) * | 1991-08-13 | 1995-11-21 | Lamb-Grays Harbor Co. | Automatic roll wrapper removing apparatus and method |
| SE469593B (sv) * | 1991-12-20 | 1993-08-02 | Johansson Arne | Foerfarande och anordning foer avemballering av en materialrulle |
| DE4212095C1 (fr) * | 1992-04-10 | 1993-08-19 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De | |
| CH686429A5 (de) * | 1992-10-16 | 1996-03-29 | Von Roll Ag | Verfahren und Vorrichtung zum Auspacken einer Papierrolle. |
-
1994
- 1994-12-12 EP EP94810716A patent/EP0721905B1/fr not_active Expired - Lifetime
- 1994-12-12 DE DE69430064T patent/DE69430064T2/de not_active Expired - Fee Related
-
1995
- 1995-12-01 DE DE69522303T patent/DE69522303T2/de not_active Expired - Fee Related
- 1995-12-11 US US08/570,278 patent/US6227088B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE69522303D1 (de) | 2001-09-27 |
| DE69430064T2 (de) | 2002-10-10 |
| EP0721905A1 (fr) | 1996-07-17 |
| US6227088B1 (en) | 2001-05-08 |
| DE69522303T2 (de) | 2002-06-27 |
| DE69430064D1 (de) | 2002-04-11 |
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