EP0254006A1 - Feeding rollers changing and splicing device for paper web-winding machines - Google Patents
Feeding rollers changing and splicing device for paper web-winding machines Download PDFInfo
- Publication number
- EP0254006A1 EP0254006A1 EP87108272A EP87108272A EP0254006A1 EP 0254006 A1 EP0254006 A1 EP 0254006A1 EP 87108272 A EP87108272 A EP 87108272A EP 87108272 A EP87108272 A EP 87108272A EP 0254006 A1 EP0254006 A1 EP 0254006A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- station
- roll
- unwinding
- splicing
- core
- 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
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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
- 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
- B65H19/1878—Support arrangement of web rolls with one stationary support for the rolls
-
- 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
- B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
- B65H19/126—Lifting, transporting, or inserting the web roll; Removing empty core with both-ends supporting arrangements
-
- 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
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/413—Supporting web roll
- B65H2301/4136—Mounting arrangements not otherwise provided for
- B65H2301/41361—Mounting arrangements not otherwise provided for sequentially used roll supports for the same web 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
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/415—Unwinding
- B65H2301/4152—Finishing unwinding process
- B65H2301/41525—Finishing unwinding process and consuming web roll up to trailing edge
-
- 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
- B65H2301/41—Winding, unwinding
- B65H2301/417—Handling or changing web rolls
- B65H2301/4171—Handling web roll
- B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
-
- 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
- B65H2301/41—Winding, unwinding
- B65H2301/417—Handling or changing web rolls
- B65H2301/418—Changing web roll
- B65H2301/4185—Core or mandrel discharge or removal, also organisation of core removal
-
- 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 a device for quickly changing the paper rolls which feed a continuous paper web to web-winding machines, such as for example, the web-winding machine described in the EP-A-0 135 662 filed 30.04.84 in the name of the same Applicant, said device comprising a splicing means for splicing the leading flap of the new paper web being unwound from a full paper roll to the trailing flap of the paper web of a depleted paper roll.
- the main object of this invention is to provide a device for quickly changing a depleted paper roll with a full paper roll at the unwinding station of a web-winding machine, said device being equipped with a splicing device for splicing the leading flap of a web being unwound from said full roll to the trailing flap of a web unwound from a depleted roll.
- this object is achieved by providing a device for quickly changing the rolls on web-winding machines, comprising:
- This station comprises, in a manner known per se, a frame 1 having pivoted thereto at 3 the end supports 2 for the core 4 of a paper roll 5.
- Said end supports 2 are substantially in the shape of a Y, and said core 4 is supported in the cradle between the two upper diverging arms of the Y, while the end of the stem of the Y is keyed to the pivot 3.
- a short lever 6 is keyed at an end thereof to the pivot 3 and is pivoted at the other end thereof to the stem 7 of a piston slidably guided in the hydraulic cylinder 8, said cylinder 8 being, in turn, pivoted at the other end thereof to the frame 1.
- a sloping guide member 9 extends outwards and downwards from a position near said supports 2 to a position beyond the maximum radius of a full paper roll 5.
- a bell-crank lever 10 is pivoted at the crank thereof to said frame 1, and comprises a longer arm 110 extending below the paper roll at the unwinding station.
- Rotatably mounted at the opposite ends of said arm 110 are two pulleys 11, 11 ⁇ around which is guided a belt 12.
- One of these pulleys is actuated by a suitable motor (not shown).
- the upper flight of belt 12 is urged constantly against the periphery of the paper roll 5 so as to rotate the latter in the unwinding direction (the direction of the arrow F).
- the other arm of the lever 10 is pivotably secured at the end thereof to the stem 13 of a piston which is slidably operating in a cylinder 14 which is pivoted to said frame 1.
- a pair of symmetric arms 15 constitute the arms for transferring the new paper rolls 105 (see Figure 2) from the stand-by station to the unwinding station of the device.
- Said arms 15 are fulcrumed, at the lower end thereof, to the base of the frame 1 as indicated at 16.
- Said arms 15 are provided intermediately with two lugs 17 having each pivoted thereto the free end of the stem 18 of a piston slidably movable in a cylinder 19.
- the free end of each cylinder 19 is pivoted at 20 to the frame of the device.
- Each arm 15 is equipped, at the free end thereof, with a substantially C-shaped head 21.
- An end portion of said head 21 is provided with an abutment member in the form of a roller 22 idle supported at an apex of a triangular supporting cage 23 which, in turn, is pivoted, at another apex thereof, to an end of said head 21, the third apex being pivoted to the stem 24 of a piston slidably moving in a hydraulic cylinder 25 which, in turn, is pivoted at its free end to the arm 15.
- the head 21 comprises as well a set of idle rollers 26 protruding from its inner outline.
- the parking station for the depleted paper rolls Located downstream of the unwinding station is the parking station for the depleted paper rolls.
- This station comprises a small carriage 27 which is guided on rails 28 in a direction parallel to the axis of the paper roll 5.
- the loading plane of the carriage 27 is at the same level as the plane lying on the guides 9, and is inclined similarly thereto.
- a stop or abutment member 29 At the lower portion of the loading plane of the carriage 27 there is provided a stop or abutment member 29.
- the cutting station for severing the trailing flap of the paper web said station being in the form of a row of water-spraying nozzles 30 extending throughout the width of the paper web 5 ⁇ from the paper roll 5.
- the splicing station Located above said cutting station, on the path of travel of the web 5 ⁇ from the paper roll 5 at the entrance of the web-winding machine (not shown), is the splicing station.
- This station comprises a pair of bell-crank levers 31 pivoted at their angled portions as shown at 32 to a pair of overhung arms 33 supported by the uprights 101 of said frame 1.
- a plane 34 extending throughout the width of the paper web 5 ⁇ .
- the free ends of the two shorter arms of said levers 31 are pivoted to the ends of two stems 35 of a pair of pistons slidably operating within two hydraulic cylinders 36 which, in turn, are pivoted at the free ends thereof to said uprights 101.
- the numerals 37 and 38 designate idle rollers for guiding the web 5 ⁇ from the splicing station to the entrance of the web-winding machine (not shown).
- a splicing carriage 40 is movable on said rails 39 and is pulled therealong by an endless chain 41 passed around sprocket wheels 42 operated by a suitable motor (not shown).
- a hot-melt glueing apparatus 140 Arranged within the carriage 40 is a hot-melt glueing apparatus 140 which feeds molten glue to the spraying nozzles 43 which constitute the glue-applying device for the splicing operation.
- a pair of bell-crank levers 44 are fulcrumed at their cranks, as shown at 45, to both sides of the carriage 40.
- the longer arms 144 of said levers 44 are pivoted at an end thereof as shown at 48 to the intermediate portion of a pair of arms 46.
- the arms 46 are pivoted at an end thereof to the carriage 40 through tierods 47.
- An idle roller 51 is mounted at the free end of said arms 46.
- two L-shaped levers 53 are fulcrumed at their angled portions, as shown at 52, to said arms 46.
- an idle counter-roller 54 Rotatably mounted on the longer arm of the levers 53 is an idle counter-roller 54 which co-operates with the roller 51 and is constantly urged thereagainst by spring means (not shown).
- an idle roller 55 Rotatably mounted at the end of the downwardly-projecting shorter arms of said levers 53 is an idle roller 55.
- This device comprises, finally, an idle stop rollers 56 fixed laterally to the guides 39 in registry with the stand-by station of the device and protruding laterally outwards to such an extent as to interfere with the shorter arms 244 of the levers 44, so as to open said levers when the carriage reaches the stand-by station.
- the device according to this invention operates as follows.
- the device is shown thereon in its "normal" operating condition, that is an operating condition wherein a full or substantially full paper roll 5 is at the unwinding station.
- the paper roll 5 is unwound in the direction of the arrow F by the action of the driving belt 12.
- FIG. 2 shows an intermediate operational step wherein the paper roll 5 is nearly depleted.
- this step a new paper roll 105 has been brought to the stand-by station and the ends of the core 104 of said paper roll have been arranged in the heads 21 of the arms 15 and more particularly they are supported on the rollers 26 and against the abutment rollers 22.
- the arms 15 have been slightly lifted by the action of the cylinders 19 so as to slightly lift the paper roll 105 from the ground.
- the leading flap 205 of the paper web 105 has been inserted between the rollers 51 and counter-rollers 54 arranged at the end of the arms 46 carried by the splicing carriage 40, and is held in place by the action of the counter-rollers 54.
- the device is now ready for the next paper roll-substitution step, shown in Figure 3.
- the machine is temporarily stopped and the end studs (not shown, since of any conventional design) holding the core 4 of the depleted paper roll 5 at the unwinding station are spread apart.
- the end supports 2 are rotated clockwise, as viewed in the drawing, by the hydraulic cylinder 8, so that the core 4 of the depleted paper roll 5, with the trailing flap 5 ⁇ of the paper web 5 ⁇ rolls along the guides 9 and then onto the carriage 27 at the parking station.
- the arms 15 are rotated and lifted to bring their heads 21 at the level of the end supports 2 which, meanwhile, have been rotated counterclockwise.
- the plane 34 of the splicing station has been lifted to the position shown in Figure 3 by the action of the cylinders 36, so that a portion of the trailing flap 5 ⁇ of the depleted paper roll 5 rests now on said plane 34.
- the carriage 40 with the leading flap 205 of the web 105 ⁇ from the new paper roll 105 locked between the rollers 51 and counter-rollers 54 at the end of the arms 46, has moved meanwhile from the position of Figures 1 and 2 above the stand-by station. It has moved first to an intermediate position (not shown) above the unwinding station, together with the roll 105 which was moving to said station.
- said carriage moves towards the splicing station, made ready as described above by the lifting of the plane 34.
- glue-spraying nozzles 43 of the carriage 40 travel over the portion of trailing flap 5 ⁇ that rests on the plane 34 at the splicing station, they spray a certain amount of glue onto said flap 5 ⁇ .
- the carriage 40 applies the leading flap 205 of the paper web from the new paper roll 105 onto the previously glued flap 5 ⁇ .
- the counter-rollers 54 are lifted because the rollers 55 engages the plane 34, so that the flap 205 is unlocked. The further movement of the carriage beyond the splicing station, therefore, causes the application of said flap 205 on the glued portion of said trailing flap 5 ⁇ .
- the moistened trailing flap is snatched apart by the pulling action exerted thereon, and a new cycle is started.
- the carriage 27 is transferred along the guides 28 to a station where the depleted core 4 is discharged, whereafter it is ready to start a new cycle.
- the trailing flap cutting station may comprise cutting means other than those described and shown herein, and instead of spray nozzles 30 it may comprise cutting blades or the like.
- transfer of the new paper rolls from the stand-by station to the unwinding station may be effected by transfer means other than the arms 15 illustrated herein.
Abstract
Description
- This invention relates to a device for quickly changing the paper rolls which feed a continuous paper web to web-winding machines, such as for example, the web-winding machine described in the EP-A-0 135 662 filed 30.04.84 in the name of the same Applicant, said device comprising a splicing means for splicing the leading flap of the new paper web being unwound from a full paper roll to the trailing flap of the paper web of a depleted paper roll.
- As is known, the replacement of a depleted roll with a full roll at the unwinding station of web-winding machines and the splicing of the trailing flap of a paper web from a depleted roll to the leading flap of a paper web from a new roll arranged at the unwinding station of said machines is a time-consuming operation which, therefore, reduces the productivity of web-winding machines.
- Therefore, the main object of this invention is to provide a device for quickly changing a depleted paper roll with a full paper roll at the unwinding station of a web-winding machine, said device being equipped with a splicing device for splicing the leading flap of a web being unwound from said full roll to the trailing flap of a web unwound from a depleted roll.
- According to a main characteristic of this invention, this object is achieved by providing a device for quickly changing the rolls on web-winding machines, comprising:
- (a) An unwinding station for the paper web roll, provided with means for supporting the core of said roll at the ends thereof, and with means for driving the roll in the roll-unwinding direction.
- (b) A stand-by station, arranged upstream of the unwinding station, provided with means for engaging the ends of the core of a new roll to be transferred to the unwinding station, so as to lift said new roll and transfer it onto the supports therefor at the unwinding station. Advantageously, said means are in the form of a pair of arms pivoted at an end thereof and operated by suitable hydraulic cylinders.
- (c) A parking station, downstream of the unwinding station, whereto the depleted roll is delivered from the unwinding station and whereat it is temporarily stopped during the splicing step.
- (d) A trailing flap cutting station, arranged in proximity of said parking station, whereat the trailing flap of the paper web of a depleted roll is cut off.
- (e) A splicing station on the path of travel of the paper web being unwound from a feeding roll, between the unwinding station and the entrance of the web-winding machine.
- (f) A splicing carriage suspended from sliding guides which are arranged at a higher level than the path of travel of the paper web being unwound from the feeding roll at the unwinding station, and movable from a position above the stand-by station to a position downstream of the splicing station, said splicing carriage comprising:
- (i) A retractable gripper device for gripping the leading flap of a new paper web from a full paper roll arranged at the stand-by station;
- (ii) a glueing device for applying a strip of glue on a portion of the trailing flap of the web from the depleted paper roll arranged at the parking station;
- (iii) means for pressing the leading flap of the paper web from the new feeding roll at the unwinding station against the glued strip on the trailing flap of the web from the depleted roll arranged at the parking station;
- (iv) means for unlocking the previously gripped leading flap of the new paper web on completion of the splicing step.
- Further objects, characteristics and advantages of the device according to the invention will be best understood from the following detailed description of an embodiment thereof, made with reference to the accompanying drawings, wherein:
- Figure 1 is a side elevational and partly sectional view of a device according to the invention, the various components being shown in the positions they assume during the normal unwinding of a paper web from a feeding roll, prior to the positioning of a new roll at the stand-by station;
- Figure 2 is a view corresponding to that of Figure 1, showing the step of positioning of a new paper roll at the stand-by station, while the paper roll at the unwinding station is nearly depleted; and
- Figure 3 is a view similar to that of Figures 1 and 2, showing the steps of splicing of the leading flap of the paper web from the new roll at the unwinding station to the trailing flap of the paper web from the depleted roll at the parking station, and of severing of the trailing flap of the web from the depleted roll from the core of said roll.
- With reference to the drawings, and more particularly to Figure 1, the unwinding station of the device according to the invention will be first described. This station comprises, in a manner known per se, a frame 1 having pivoted thereto at 3 the end supports 2 for the core 4 of a paper roll 5. Said end supports 2 (only one of which is shown) are substantially in the shape of a Y, and said core 4 is supported in the cradle between the two upper diverging arms of the Y, while the end of the stem of the Y is keyed to the pivot 3. A short lever 6 is keyed at an end thereof to the pivot 3 and is pivoted at the other end thereof to the
stem 7 of a piston slidably guided in thehydraulic cylinder 8, saidcylinder 8 being, in turn, pivoted at the other end thereof to the frame 1. A sloping guide member 9 extends outwards and downwards from a position near said supports 2 to a position beyond the maximum radius of a full paper roll 5. - A bell-
crank lever 10 is pivoted at the crank thereof to said frame 1, and comprises alonger arm 110 extending below the paper roll at the unwinding station. Rotatably mounted at the opposite ends of saidarm 110 are twopulleys 11, 11ʹ around which is guided abelt 12. One of these pulleys is actuated by a suitable motor (not shown). The upper flight ofbelt 12 is urged constantly against the periphery of the paper roll 5 so as to rotate the latter in the unwinding direction (the direction of the arrow F). For this purpose, the other arm of thelever 10 is pivotably secured at the end thereof to thestem 13 of a piston which is slidably operating in acylinder 14 which is pivoted to said frame 1. - A pair of symmetric arms 15 (only one of which is shown) constitute the arms for transferring the new paper rolls 105 (see Figure 2) from the stand-by station to the unwinding station of the device. Said
arms 15 are fulcrumed, at the lower end thereof, to the base of the frame 1 as indicated at 16. Saidarms 15 are provided intermediately with twolugs 17 having each pivoted thereto the free end of thestem 18 of a piston slidably movable in acylinder 19. The free end of eachcylinder 19 is pivoted at 20 to the frame of the device. Eacharm 15 is equipped, at the free end thereof, with a substantially C-shaped head 21. An end portion of saidhead 21 is provided with an abutment member in the form of aroller 22 idle supported at an apex of a triangular supportingcage 23 which, in turn, is pivoted, at another apex thereof, to an end of saidhead 21, the third apex being pivoted to thestem 24 of a piston slidably moving in ahydraulic cylinder 25 which, in turn, is pivoted at its free end to thearm 15. Thehead 21 comprises as well a set ofidle rollers 26 protruding from its inner outline. - Located downstream of the unwinding station is the parking station for the depleted paper rolls. This station comprises a
small carriage 27 which is guided onrails 28 in a direction parallel to the axis of the paper roll 5. The loading plane of thecarriage 27 is at the same level as the plane lying on the guides 9, and is inclined similarly thereto. At the lower portion of the loading plane of thecarriage 27 there is provided a stop orabutment member 29. Located slightly above the parking station is the cutting station for severing the trailing flap of the paper web, said station being in the form of a row of water-sprayingnozzles 30 extending throughout the width of the paper web 5ʹ from the paper roll 5. - Located above said cutting station, on the path of travel of the web 5ʹ from the paper roll 5 at the entrance of the web-winding machine (not shown), is the splicing station. This station comprises a pair of bell-crank levers 31 pivoted at their angled portions as shown at 32 to a pair of
overhung arms 33 supported by theuprights 101 of said frame 1. Secured to the upper side of the longer arms of saidlevers 31 is aplane 34 extending throughout the width of the paper web 5ʹ. The free ends of the two shorter arms of saidlevers 31 are pivoted to the ends of twostems 35 of a pair of pistons slidably operating within twohydraulic cylinders 36 which, in turn, are pivoted at the free ends thereof to saiduprights 101. - The
numerals - At a level above the path of travel of the web 5ʹ there are suspended
guide rails 39 extending from a position above said stand-by station, to a position downstream of said splicing station. Asplicing carriage 40 is movable on saidrails 39 and is pulled therealong by anendless chain 41 passed aroundsprocket wheels 42 operated by a suitable motor (not shown). - Arranged within the
carriage 40 is a hot-melt glueingapparatus 140 which feeds molten glue to the sprayingnozzles 43 which constitute the glue-applying device for the splicing operation. - A pair of bell-
crank levers 44 are fulcrumed at their cranks, as shown at 45, to both sides of thecarriage 40. Pivoted to thearms 144 oflevers 44, near the fulcrum 45, is one end of ahydraulic cylinder 49 slidably accommodating a piston the stem 50 of which is pivoted at the end thereof to thearms 46 near thepivotal connection 48, so as to constantly pull said bell-crank levers 44 towards their closed position (direction of the arrow F1). Thelonger arms 144 ofsaid levers 44 are pivoted at an end thereof as shown at 48 to the intermediate portion of a pair ofarms 46. Thearms 46, in turn, are pivoted at an end thereof to thecarriage 40 throughtierods 47. Anidle roller 51 is mounted at the free end of saidarms 46. In proximity of therollers 51, two L-shaped levers 53 are fulcrumed at their angled portions, as shown at 52, to saidarms 46. Rotatably mounted on the longer arm of thelevers 53 is anidle counter-roller 54 which co-operates with theroller 51 and is constantly urged thereagainst by spring means (not shown). Rotatably mounted at the end of the downwardly-projecting shorter arms ofsaid levers 53 is anidle roller 55. This device comprises, finally, anidle stop rollers 56 fixed laterally to theguides 39 in registry with the stand-by station of the device and protruding laterally outwards to such an extent as to interfere with theshorter arms 244 of thelevers 44, so as to open said levers when the carriage reaches the stand-by station. - The device according to this invention operates as follows.
- With reference first to the Figure 1 of the drawings, the device is shown thereon in its "normal" operating condition, that is an operating condition wherein a full or substantially full paper roll 5 is at the unwinding station.
- In this condition, the
carriage 40 has been moved along theguides 39 to a position above the stand-by station, and itsarms 46 have been moved downwards, against the action of thehydraulic cylinder 49, due to the engagement of thelever arms 244 against thestop rollers 56. Thetransfer arms 15 have been lowered by thehydraulic cylinders 19 to their lowest position towards the stand-by station. Theplane 34 has also been lowered to the illustrated position by the action of thecylinder 36. - The paper roll 5 is unwound in the direction of the arrow F by the action of the
driving belt 12. - Figure 2 shows an intermediate operational step wherein the paper roll 5 is nearly depleted.
- During, or just before, this step a
new paper roll 105 has been brought to the stand-by station and the ends of thecore 104 of said paper roll have been arranged in theheads 21 of thearms 15 and more particularly they are supported on therollers 26 and against theabutment rollers 22. Thearms 15 have been slightly lifted by the action of thecylinders 19 so as to slightly lift thepaper roll 105 from the ground. The leadingflap 205 of thepaper web 105 has been inserted between therollers 51 andcounter-rollers 54 arranged at the end of thearms 46 carried by thesplicing carriage 40, and is held in place by the action of the counter-rollers 54. The device is now ready for the next paper roll-substitution step, shown in Figure 3. - During this step, the machine is temporarily stopped and the end studs (not shown, since of any conventional design) holding the core 4 of the depleted paper roll 5 at the unwinding station are spread apart. The end supports 2 are rotated clockwise, as viewed in the drawing, by the
hydraulic cylinder 8, so that the core 4 of the depleted paper roll 5, with the trailing flap 5ʺ of the paper web 5ʹ rolls along the guides 9 and then onto thecarriage 27 at the parking station. At the same time, thearms 15 are rotated and lifted to bring theirheads 21 at the level of the end supports 2 which, meanwhile, have been rotated counterclockwise. Theabutment rollers 22 of theheads 21 are lowered by thecylinders 25, so that thenew paper roll 105 rolls onto the supports 2, which assume again their original position. The locking studs will be closed again into thecore 104 of thenew paper roll 105, and thearms 15 are moved back to their initial position, shown on the Figures 3 and 1. At the same time, the following operations are carried out: - The
plane 34 of the splicing station has been lifted to the position shown in Figure 3 by the action of thecylinders 36, so that a portion of the trailing flap 5ʺ of the depleted paper roll 5 rests now on saidplane 34. Thecarriage 40, with the leadingflap 205 of the web 105ʹ from thenew paper roll 105 locked between therollers 51 andcounter-rollers 54 at the end of thearms 46, has moved meanwhile from the position of Figures 1 and 2 above the stand-by station. It has moved first to an intermediate position (not shown) above the unwinding station, together with theroll 105 which was moving to said station. During this first movement, thearms 244 of thelevers 44 have moved away from thestop rollers 56, whereby thearms 46 has been raised to a position which is substantially parallel to theguides 39, as shown in Figure 3, by the action of thehydraulic cylinders 49 acting upon thelevers - Thereafter, said carriage moves towards the splicing station, made ready as described above by the lifting of the
plane 34. When the glue-sprayingnozzles 43 of thecarriage 40 travel over the portion of trailing flap 5ʺ that rests on theplane 34 at the splicing station, they spray a certain amount of glue onto said flap 5ʺ. While further moving toward the splicing station, thecarriage 40 applies the leadingflap 205 of the paper web from thenew paper roll 105 onto the previously glued flap 5ʺ. At the same time, the counter-rollers 54 are lifted because therollers 55 engages theplane 34, so that theflap 205 is unlocked. The further movement of the carriage beyond the splicing station, therefore, causes the application of saidflap 205 on the glued portion of said trailing flap 5ʺ. This application is helped and facilitated by the action of therollers 51 in pressing said flaps together, so as to assure a firm connection. Thecarriage 40 may now return to its original position of Figure 1, at the stand-by station. At the same time, the cuttingstation 30 is activated to spray water against the portion of the trailing flap 5ʺ that is located between the splicing station and the parking station. This sprayed water weakens the paper web by moistening it, making it ready to be snatched apart from the core 4 of the depleted roll 5. Theplane 34 is then lowered again to the position of Figures 1 and 2, and the feeding of the paper web to the web-winding machine can be re-started. As suggested above, as soon as the feeding cycle is re-started, the moistened trailing flap is snatched apart by the pulling action exerted thereon, and a new cycle is started. Thecarriage 27 is transferred along theguides 28 to a station where the depleted core 4 is discharged, whereafter it is ready to start a new cycle. - Of course, the present invention is not limited to the embodiment herein described and shown, which is given only as a non-limiting example of a preferred embodiment of the invention.
- Thus, for example, the trailing flap cutting station may comprise cutting means other than those described and shown herein, and instead of
spray nozzles 30 it may comprise cutting blades or the like. - Moreover, the transfer of the new paper rolls from the stand-by station to the unwinding station may be effected by transfer means other than the
arms 15 illustrated herein.
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87108272T ATE50545T1 (en) | 1986-07-22 | 1987-06-09 | DEVICE FOR CHANGING THE ROLLS AND FOR SPLICING THE WEB FOR PAPER WEB UNWINDING DEVICES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1251886 | 1986-07-22 | ||
IT12518/86A IT1200273B (en) | 1986-07-22 | 1986-07-22 | DEVICE FOR JOINTING AND RAPID CHANGE OF REELS IN REELING MACHINES |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0254006A1 true EP0254006A1 (en) | 1988-01-27 |
EP0254006B1 EP0254006B1 (en) | 1990-02-28 |
Family
ID=11141112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87108272A Expired - Lifetime EP0254006B1 (en) | 1986-07-22 | 1987-06-09 | Feeding rollers changing and splicing device for paper web-winding machines |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0254006B1 (en) |
AT (1) | ATE50545T1 (en) |
DE (1) | DE3761759D1 (en) |
IT (1) | IT1200273B (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2224270A (en) * | 1988-07-28 | 1990-05-02 | Will E C H Gmbh & Co | Manipulating paper rolls |
EP0509139A1 (en) * | 1991-03-26 | 1992-10-21 | Leybold Aktiengesellschaft | Device for supporting and guiding an axle or shaft or a bearing ring |
EP0539986B1 (en) * | 1991-10-31 | 1995-12-27 | Japan Tobacco Inc. | Apparatus for drawing out a web end from a web roll |
WO1998046509A1 (en) * | 1997-04-16 | 1998-10-22 | Kimberly-Clark Worldwide, Inc. | Methods for making and processing high bulk tissue webs |
US6484964B1 (en) * | 2000-08-17 | 2002-11-26 | Elco Enterprises, Inc. | Welding wire dereeler |
WO2003043918A2 (en) * | 2001-11-23 | 2003-05-30 | Sarong Societa'per Azioni | Apparatus |
US6733608B1 (en) | 1997-04-16 | 2004-05-11 | Kimberly-Clark Worldwide, Inc. | Methods for making and processing high bulk tissue webs |
WO2014005661A1 (en) * | 2012-07-04 | 2014-01-09 | Windmöller & Hölscher Kg | Device for unwinding web material |
JP2014015287A (en) * | 2012-07-06 | 2014-01-30 | Fuji Les-Bell:Kk | Tape supply device, and roll unit |
US20140097288A1 (en) * | 2012-10-09 | 2014-04-10 | Ricoh Company, Ltd. | Sheet feeder and image forming apparatus |
CN104986600A (en) * | 2015-06-30 | 2015-10-21 | 浙江彩汇包装科技有限公司 | Automatic material-replacing device of bag making machine |
IT201800004530A1 (en) * | 2018-04-16 | 2019-10-16 | Machine and method for processing a strip made of material for the tobacco industry |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2106553A (en) * | 1981-09-18 | 1983-04-13 | Cutters Exchange | Cloth roll loading apparatus for a cloth laying machine |
GB2135282A (en) * | 1983-02-15 | 1984-08-30 | British American Tobacco Co | Splicing webs automatically |
-
1986
- 1986-07-22 IT IT12518/86A patent/IT1200273B/en active
-
1987
- 1987-06-09 DE DE8787108272T patent/DE3761759D1/en not_active Expired - Fee Related
- 1987-06-09 AT AT87108272T patent/ATE50545T1/en not_active IP Right Cessation
- 1987-06-09 EP EP87108272A patent/EP0254006B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2106553A (en) * | 1981-09-18 | 1983-04-13 | Cutters Exchange | Cloth roll loading apparatus for a cloth laying machine |
GB2135282A (en) * | 1983-02-15 | 1984-08-30 | British American Tobacco Co | Splicing webs automatically |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2224270A (en) * | 1988-07-28 | 1990-05-02 | Will E C H Gmbh & Co | Manipulating paper rolls |
GB2224270B (en) * | 1988-07-28 | 1992-11-18 | Will E C H Gmbh & Co | Method of and apparatus for manipulating rolls of convoluted paper webs and the like |
EP0509139A1 (en) * | 1991-03-26 | 1992-10-21 | Leybold Aktiengesellschaft | Device for supporting and guiding an axle or shaft or a bearing ring |
EP0539986B1 (en) * | 1991-10-31 | 1995-12-27 | Japan Tobacco Inc. | Apparatus for drawing out a web end from a web roll |
US6733608B1 (en) | 1997-04-16 | 2004-05-11 | Kimberly-Clark Worldwide, Inc. | Methods for making and processing high bulk tissue webs |
WO1998046509A1 (en) * | 1997-04-16 | 1998-10-22 | Kimberly-Clark Worldwide, Inc. | Methods for making and processing high bulk tissue webs |
US6484964B1 (en) * | 2000-08-17 | 2002-11-26 | Elco Enterprises, Inc. | Welding wire dereeler |
WO2003043918A2 (en) * | 2001-11-23 | 2003-05-30 | Sarong Societa'per Azioni | Apparatus |
WO2003043918A3 (en) * | 2001-11-23 | 2003-08-07 | Sarong Spa | Apparatus |
CN1329267C (en) * | 2001-11-23 | 2007-08-01 | 萨龙股份公司 | Apparatus |
WO2014005661A1 (en) * | 2012-07-04 | 2014-01-09 | Windmöller & Hölscher Kg | Device for unwinding web material |
JP2014015287A (en) * | 2012-07-06 | 2014-01-30 | Fuji Les-Bell:Kk | Tape supply device, and roll unit |
US20140097288A1 (en) * | 2012-10-09 | 2014-04-10 | Ricoh Company, Ltd. | Sheet feeder and image forming apparatus |
JP2014076560A (en) * | 2012-10-09 | 2014-05-01 | Ricoh Co Ltd | Sheet feeding device and image formation device |
CN104986600A (en) * | 2015-06-30 | 2015-10-21 | 浙江彩汇包装科技有限公司 | Automatic material-replacing device of bag making machine |
IT201800004530A1 (en) * | 2018-04-16 | 2019-10-16 | Machine and method for processing a strip made of material for the tobacco industry | |
EP3556228A1 (en) * | 2018-04-16 | 2019-10-23 | G.D. S.p.A | Machine and method for processing a web of material for the tobacco industry |
EP3556228B1 (en) | 2018-04-16 | 2022-09-07 | G.D S.p.A. | Machine and method for processing a web of material for the tobacco industry |
Also Published As
Publication number | Publication date |
---|---|
EP0254006B1 (en) | 1990-02-28 |
DE3761759D1 (en) | 1990-04-05 |
IT8612518A0 (en) | 1986-07-22 |
ATE50545T1 (en) | 1990-03-15 |
IT1200273B (en) | 1989-01-12 |
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