CA2418366A1 - A method and an apparatus for improving functioning of a wrapping machine - Google Patents
A method and an apparatus for improving functioning of a wrapping machine Download PDFInfo
- Publication number
- CA2418366A1 CA2418366A1 CA002418366A CA2418366A CA2418366A1 CA 2418366 A1 CA2418366 A1 CA 2418366A1 CA 002418366 A CA002418366 A CA 002418366A CA 2418366 A CA2418366 A CA 2418366A CA 2418366 A1 CA2418366 A1 CA 2418366A1
- Authority
- CA
- Canada
- Prior art keywords
- wrapping
- plastic film
- film band
- roll
- wrapped
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/02—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
- B65B11/025—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders by webs revolving around stationary articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B2210/00—Specific aspects of the packaging machine
- B65B2210/14—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
- B65B2210/18—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles the web dispenser being mounted on a rotary ring
Abstract
A method and an apparatus for improving the operating efficiency of a wrappi ng machine (10), by providing the wrapping machine (10) with two or more wrappi ng carriages (30a, 30b) or similar devices for two or more plastic film band rolls (31a, 31b), each of which can be taken into use in turn at any time. T o permit a roll change, the wrapping machine is provided with a switch-over gripper (50) for gripping the end (33b) of the plastic film band (32b) comin g from a full plastic film band roll (31b) and for pulling it onto a seaming gripper (40) before the wrapping of the next object (10) to be wrapped is started.
Description
A nrethod and an apparatus for ianpro~ing functioning of a w~appirig anachine METHOD OF THE INVENTION
The present invention relates to a method for improving the operating efficiency of a wrapping machine, in which wrapping method - at least two plastic film band rolls are placed inside the wrapping machine, - plastic film band from at least one roll vis v~rrapped about the object to be wrapped next, - after the object has been wrapped up, the plastic film band is seamed and severed, whereupon the next object can be wrapped, - and that the wrapping action can be continued until the plastic film band on the roll has been used up.
~5 PRIOR-ART METHOD
According to a prior-art wrapping method, the wrapping machine is stopped when the plastic film band on the roll has been used up. After that, the empty roll is replaced with a full one either manually or by means of an automatic roll changing mechanism.
However, changing the roll always involves the waste of a considerable deal of valuable wrapping 20 time.
In a manual roll changing operation, first the safety screen of the wrapping machine is opened and then also the wrapping carriage inside the wrapping machine. The empty roll on the wrapping carriage is removed and replaced with a full roll. Finally, the wrapping 25 carriage and the safety screen of the wrapping machine are closed.
An automatic roll changing operation also takes a long time because even in this case the roll changing mechanism must first get the empty roll out of the stopped wrapping machine and then bring in a full roll to replace the empty one from outside the wrapping 3o machine.
APPARATUS OF THE INVENTION
The invention also relates to an apparatus for improving the operating efficiency of a wrapping machine, said wrapping machine comprising 35 - at least two wrapping devices, such as wrapping carriages, provided with plastic film band rolls to allow plastic film band to be wound about the object to be wrapped, - and means for seaming and severing the plastic film band.
The present invention relates to a method for improving the operating efficiency of a wrapping machine, in which wrapping method - at least two plastic film band rolls are placed inside the wrapping machine, - plastic film band from at least one roll vis v~rrapped about the object to be wrapped next, - after the object has been wrapped up, the plastic film band is seamed and severed, whereupon the next object can be wrapped, - and that the wrapping action can be continued until the plastic film band on the roll has been used up.
~5 PRIOR-ART METHOD
According to a prior-art wrapping method, the wrapping machine is stopped when the plastic film band on the roll has been used up. After that, the empty roll is replaced with a full one either manually or by means of an automatic roll changing mechanism.
However, changing the roll always involves the waste of a considerable deal of valuable wrapping 20 time.
In a manual roll changing operation, first the safety screen of the wrapping machine is opened and then also the wrapping carriage inside the wrapping machine. The empty roll on the wrapping carriage is removed and replaced with a full roll. Finally, the wrapping 25 carriage and the safety screen of the wrapping machine are closed.
An automatic roll changing operation also takes a long time because even in this case the roll changing mechanism must first get the empty roll out of the stopped wrapping machine and then bring in a full roll to replace the empty one from outside the wrapping 3o machine.
APPARATUS OF THE INVENTION
The invention also relates to an apparatus for improving the operating efficiency of a wrapping machine, said wrapping machine comprising 35 - at least two wrapping devices, such as wrapping carriages, provided with plastic film band rolls to allow plastic film band to be wound about the object to be wrapped, - and means for seaming and severing the plastic film band.
PRIOR-ART APPARATUS
A known solution is to provide the wrapping machine with an automatic device for changing the plastic film band roll, by means of which an exhausted plastic film band roll can be replaced with a full one. The change of rolls is performed with the wrapping machine in a fully inactive state. The changing mechanism extracts the empty roll from inside the wrapping machine and moves it out of the machine. After that, the changing mechanism takes a full roll onto the wrapping carriage inside the machine.
1o However, the automatic roll changing mechanism is technically complicated and its operation takes a relatively long time because the wrapping machine has to be brought to a complete standstill for the duration of the roll change. The roll changing mechanism must first get the empty roll out of the wrapping machine and then bring in a full roll from outside the machine to replace the exhausted one.
OBJECT OF THE INVENTION
The object of the invention is to achieve a method and an apparatus for improving the operating efficiency of a wrapping machine which do not have the above-described disadvantages.
FEATURES CHARACTERISTIC OF THE METHOD OF THE INVENTION
The method of the invention is characterized in that, after one plastic film band roll has been used up, wrapping is continued from another, full plastic film band roll placed inside the wrapping machine.
It is obvious that substantially faster operation is achieved if wrapping is continued from a roll already at hand than if a new roll has to be brought in from outside the wrapping machine.
3o EMBODIMENTS OF THE METHOD OF THE INVENTION
According to a preferred embodiment of the method of the invention, each plastic film band roll is placed on a separate wrapping device, and that after the plastic film band roll being used for wrapping has been exhausted, the wrapping operation is continued using another wrapping device which contains a full plastic film band roll.
A known solution is to provide the wrapping machine with an automatic device for changing the plastic film band roll, by means of which an exhausted plastic film band roll can be replaced with a full one. The change of rolls is performed with the wrapping machine in a fully inactive state. The changing mechanism extracts the empty roll from inside the wrapping machine and moves it out of the machine. After that, the changing mechanism takes a full roll onto the wrapping carriage inside the machine.
1o However, the automatic roll changing mechanism is technically complicated and its operation takes a relatively long time because the wrapping machine has to be brought to a complete standstill for the duration of the roll change. The roll changing mechanism must first get the empty roll out of the wrapping machine and then bring in a full roll from outside the machine to replace the exhausted one.
OBJECT OF THE INVENTION
The object of the invention is to achieve a method and an apparatus for improving the operating efficiency of a wrapping machine which do not have the above-described disadvantages.
FEATURES CHARACTERISTIC OF THE METHOD OF THE INVENTION
The method of the invention is characterized in that, after one plastic film band roll has been used up, wrapping is continued from another, full plastic film band roll placed inside the wrapping machine.
It is obvious that substantially faster operation is achieved if wrapping is continued from a roll already at hand than if a new roll has to be brought in from outside the wrapping machine.
3o EMBODIMENTS OF THE METHOD OF THE INVENTION
According to a preferred embodiment of the method of the invention, each plastic film band roll is placed on a separate wrapping device, and that after the plastic film band roll being used for wrapping has been exhausted, the wrapping operation is continued using another wrapping device which contains a full plastic film band roll.
According to a second preferred embodiment of the method of the invention, the wrapping operation is started or continued using a wrapping device containing a full plastic film band roll by gripping the end of the plastic film band coming from the full plastic film band roll and locking it in place before starting the wrapping of the next object to be wrapped.
FEATURES CHARACTERISTIC OF THE APPARATUS OF THE INVENTION
The apparatus of the invention is characterized in that the wrapping machine comprises means for switching the wrapping process from an exhausted plastic film band roll to a ~o full plastic film band roll.
The means for switching the wrapping process from one roll to another are technically simple and therefore reliable in operation.
~5 EMBODIMENTS OF THE APPARATUS OF THE INVENTION
A preferred embodiment of the apparatus of the invention is characterized in that - the wrapping machine comprises at least two separate wrapping devices, such as wrapping carriages, containing a plastic film band roll, and that - the wrapping machine is provided with a switch-over gripper for gripping the end of 2o the plastic film band coming from a full plastic film band roll.
A second preferred embodiment of the apparatus of the invention is characterized in that - the switch-over gripper can be moved to a position near the end of the plastic film band coming from the plastic film band roll and in a direction away from said plastic 25 film band end, and that a seaming gripper is placed near the path of the switch-over gripper, and that the seaming gripper has been arranged to grip the plastic film band drawn out from the plastic film band roll by the switch-over gripper.
3o A third preferred embodiment of the device of the invention is characterized in that the wrapping device, such as wrapping carriage, containing a plastic film band roll is provided with a holder in which the end of the plastic film band is set so that it can be gripped by the switch-over gripper.
In the following, the invention will be described by the aid of a few examples with reference to the attached drawings, wherein LIST OF DRAWINGS
Fig. 1 presents a diagrammatic side view of a wrapping machine with two wrapping carriages.
Fig. 2-4 present the wrapping machine of Fig. 1 at different stages of a roll change operation.
Fig. 5 presents the wrapping machine of Fig. 1 at the start of a wrapping operation.
Fig. 6 presents the wrapping machine of Fig. 1 in diagrammatic top view.
~o DESCRIPTION OF THE DRAWINGS
Fig. 1 presents a side view of a wrapping machine 10 for winding a plastic film band 32 about an object 60 to be wrapped, which is placed on a conveyor track 61. In this example, the wrapping machine 10 is a ring-type wrapping machine with a hoisting frame 20 vertically movable along vertical rails 21. Supported by support rollers 23 on the ~5 hoisting frame 20 is the rotating ring 22 of the wrapping machine 10, carrying two wrapping carriages 30a and 30b. Attached to the hoisting frame 20 is a seaming unit 40 provided with a gripper 41 for gripping the plastic film band as well as means for seaming and severing the plastic film band.
2o Each wrapping carriage 30a and 30b carries a roll 31a, 31b of plastic film band 32a, 32b to be wound about the object to be wrapped 60. In the wrapping carriages 30a and 30b, the ends 33a and 33b of the plastic film bands are placed in holders 34a and 34b. The wrapping machine 10 further comprises a switch-over gripper unit 50, which moves horizontally on a slide 52. The switch-over gripper unit 50 is provided with gripper jaws 51 2s which can grip the plastic film band ends 33a and 33b in the holders 34a and 34b on the wrapping carriages 30a and 30b. In a roll change situation, the rotating ring 22 of the wrapping machine 10 is turned to a position such that the holder 34a of the a plastic film band end 33a on one of the wrapping carriages, in Fig. 1 wrapping carriage 30a, is aligned with the gripper jaws 51 of the switch-over gripper unit 50.
Fig. 2 illustrates the initial stage of a roll change operation in the wrapping machine 10. At this point, the switch-over gripper unit 50 has been raised so that the gripper jaws 51 are at the level of the plastic film band ends 33a and 33b in the holders 34a and 34b of the wrapping carriages 30a and 30b. While the switch-over gripper unit 50 is moving horizontally on the slide 52, in Fig. 2 to the left, the gripper jaws 51 are opened.
FEATURES CHARACTERISTIC OF THE APPARATUS OF THE INVENTION
The apparatus of the invention is characterized in that the wrapping machine comprises means for switching the wrapping process from an exhausted plastic film band roll to a ~o full plastic film band roll.
The means for switching the wrapping process from one roll to another are technically simple and therefore reliable in operation.
~5 EMBODIMENTS OF THE APPARATUS OF THE INVENTION
A preferred embodiment of the apparatus of the invention is characterized in that - the wrapping machine comprises at least two separate wrapping devices, such as wrapping carriages, containing a plastic film band roll, and that - the wrapping machine is provided with a switch-over gripper for gripping the end of 2o the plastic film band coming from a full plastic film band roll.
A second preferred embodiment of the apparatus of the invention is characterized in that - the switch-over gripper can be moved to a position near the end of the plastic film band coming from the plastic film band roll and in a direction away from said plastic 25 film band end, and that a seaming gripper is placed near the path of the switch-over gripper, and that the seaming gripper has been arranged to grip the plastic film band drawn out from the plastic film band roll by the switch-over gripper.
3o A third preferred embodiment of the device of the invention is characterized in that the wrapping device, such as wrapping carriage, containing a plastic film band roll is provided with a holder in which the end of the plastic film band is set so that it can be gripped by the switch-over gripper.
In the following, the invention will be described by the aid of a few examples with reference to the attached drawings, wherein LIST OF DRAWINGS
Fig. 1 presents a diagrammatic side view of a wrapping machine with two wrapping carriages.
Fig. 2-4 present the wrapping machine of Fig. 1 at different stages of a roll change operation.
Fig. 5 presents the wrapping machine of Fig. 1 at the start of a wrapping operation.
Fig. 6 presents the wrapping machine of Fig. 1 in diagrammatic top view.
~o DESCRIPTION OF THE DRAWINGS
Fig. 1 presents a side view of a wrapping machine 10 for winding a plastic film band 32 about an object 60 to be wrapped, which is placed on a conveyor track 61. In this example, the wrapping machine 10 is a ring-type wrapping machine with a hoisting frame 20 vertically movable along vertical rails 21. Supported by support rollers 23 on the ~5 hoisting frame 20 is the rotating ring 22 of the wrapping machine 10, carrying two wrapping carriages 30a and 30b. Attached to the hoisting frame 20 is a seaming unit 40 provided with a gripper 41 for gripping the plastic film band as well as means for seaming and severing the plastic film band.
2o Each wrapping carriage 30a and 30b carries a roll 31a, 31b of plastic film band 32a, 32b to be wound about the object to be wrapped 60. In the wrapping carriages 30a and 30b, the ends 33a and 33b of the plastic film bands are placed in holders 34a and 34b. The wrapping machine 10 further comprises a switch-over gripper unit 50, which moves horizontally on a slide 52. The switch-over gripper unit 50 is provided with gripper jaws 51 2s which can grip the plastic film band ends 33a and 33b in the holders 34a and 34b on the wrapping carriages 30a and 30b. In a roll change situation, the rotating ring 22 of the wrapping machine 10 is turned to a position such that the holder 34a of the a plastic film band end 33a on one of the wrapping carriages, in Fig. 1 wrapping carriage 30a, is aligned with the gripper jaws 51 of the switch-over gripper unit 50.
Fig. 2 illustrates the initial stage of a roll change operation in the wrapping machine 10. At this point, the switch-over gripper unit 50 has been raised so that the gripper jaws 51 are at the level of the plastic film band ends 33a and 33b in the holders 34a and 34b of the wrapping carriages 30a and 30b. While the switch-over gripper unit 50 is moving horizontally on the slide 52, in Fig. 2 to the left, the gripper jaws 51 are opened.
In Fig. 3 the gripper jaws 51 of the switch-over gripper unit 50 of the wrapping machine have gripped the end 33a of the plastic film band. After that, the switch-over gripper unit 50 has moved to the right in Fig. 3 along the slide 52, so that the plastic film band end 33a has been released from the holder 34a. The jaws 51 of the switch-over gripper 5 unit 50 have pulled the plastic film band end 33a and the plastic film band 32a off the roll 31 a so that the plastic film band 32a has now reached the gripper 41 of the seaming unit 40.
In Fig. 4, the gripper 41 of the seaming unit 40 of the wrapping machine 10 has engaged 1o the plastic film band 32a and the gripper jaws 51 of the switch-over gripper unit 50 have been opened. This situation corresponds to a situation in a prior-art wrapping machine where the end of the plastic film band to be used for wrapping has been set info the gripper of a seaming unit to allow the wrapping to be started or continued from a new, full roll.
In Fig. 5, the gripper 41 of the seaming unit 40 of the wrapping machine 10 has turned into a horizontal position in a known manner and the ring 22 with the wrapping carriages 30a and 30b has started to rotate, so the wrapping of the object 60 with plastic film band 32a has begun. At the same time, the switch-over gripper unit 50 has returned to its initial 2o position, i.e. to the low position so that it is out of the way of the circulating wrapping carriages 30a and 30b.
In Fig. 5, the object 60 is being wrapped with plastic film band 32a obtained from a roll 31 a on wrapping carriage 30a. The roll 31 b on the other wrapping carriage 30b attached to the rotating ring 22 is circulating with the ring but only as a stand-by roll ready for use when roll 31a is exhausted. When roll 31a runs out of plastic film band, the wrapping is continued using the roll 31 b on the other wrapping carriage 30b. Roll 31 b is put into active use by steps identical with those for roll 31a as illustrated in Fig. 2-4. However, since both rolls 31 a and 31 b are already within the wrapping machine 10, the roll change so can be performed substantially faster and more effectively than in prior-art wrapping machines, in which the new roll is always brought in from outside the machine.
Fig. 6 presents a simplified top view of the wrapping machine 10 in Fig. 1. As shown in the figure, the rotating ring 22 of the wrapping machine 10 is provided with two wrapping carriages 30a and 30b, each carrying a plastic film band roll 31 a, 31 b. The end of the plastic film band 32a, 32b on each roll 31 a, 31 b is placed in a holder 34a, 34b attached to the wrapping carriage 30a, 30b.
In Fig. 4, the gripper 41 of the seaming unit 40 of the wrapping machine 10 has engaged 1o the plastic film band 32a and the gripper jaws 51 of the switch-over gripper unit 50 have been opened. This situation corresponds to a situation in a prior-art wrapping machine where the end of the plastic film band to be used for wrapping has been set info the gripper of a seaming unit to allow the wrapping to be started or continued from a new, full roll.
In Fig. 5, the gripper 41 of the seaming unit 40 of the wrapping machine 10 has turned into a horizontal position in a known manner and the ring 22 with the wrapping carriages 30a and 30b has started to rotate, so the wrapping of the object 60 with plastic film band 32a has begun. At the same time, the switch-over gripper unit 50 has returned to its initial 2o position, i.e. to the low position so that it is out of the way of the circulating wrapping carriages 30a and 30b.
In Fig. 5, the object 60 is being wrapped with plastic film band 32a obtained from a roll 31 a on wrapping carriage 30a. The roll 31 b on the other wrapping carriage 30b attached to the rotating ring 22 is circulating with the ring but only as a stand-by roll ready for use when roll 31a is exhausted. When roll 31a runs out of plastic film band, the wrapping is continued using the roll 31 b on the other wrapping carriage 30b. Roll 31 b is put into active use by steps identical with those for roll 31a as illustrated in Fig. 2-4. However, since both rolls 31 a and 31 b are already within the wrapping machine 10, the roll change so can be performed substantially faster and more effectively than in prior-art wrapping machines, in which the new roll is always brought in from outside the machine.
Fig. 6 presents a simplified top view of the wrapping machine 10 in Fig. 1. As shown in the figure, the rotating ring 22 of the wrapping machine 10 is provided with two wrapping carriages 30a and 30b, each carrying a plastic film band roll 31 a, 31 b. The end of the plastic film band 32a, 32b on each roll 31 a, 31 b is placed in a holder 34a, 34b attached to the wrapping carriage 30a, 30b.
Fig. 6 illustrates an initial situation in which each wrapping carriage 30a, 30b of the wrapping machine 10 is provided with a full plastic film band roll 31a, 31b.
In preparation for the start of the wrapping action, the rotating ring 22 has been turned to an initial s position such that the end 33a of the plastic film band 32a in the band holder 34a of the first wrapping carriage 30a is aligned with the jaws 51 of the switch-over gripper unit 50.
Next, the switch-over gripper unit 50 moves to the left in Fig. 6 and the gripper jaws 51 grip the end 33a of the plastic film band 32a in holder 34a, as is also shown in Fig. 2.
After that, the gripper jaws 51 pull the end 33a of the plastic film band 32a to the right in Fig. 6 so that the plastic film band 32a extends across the gripper 41 of the seaming unit 40. This situation is also illustrated in Fig. 3. The gripper 41 now engages the plastic film band 32a and the jaws 51 of the switch-over gripper unit 50 are opened, as is also shown in Fig. 4. After the switch-over gripper unit 50 has moved down to be out of the way of the wrapping carriages 30a and 30b, the machine can start wrapping the object 60 on the conveyor track 61 from the roll 31 a on wrapping carriage 30a.
ADDITIONAL REMARKS
It is obvious to the person skilled in the art that different embodiments of the invention 2o may be varied within the scope of the claims presented below. Thus, the invention is not limited to the ring-type wrapping machine presented in the drawings. In a corresponding manner, other types of wrapping machine can equally well be provided with two or more wrapping carriages or similar wrapping devices for winding a plastic film band, so that a substantially more effective roll change can be achieved.
In preparation for the start of the wrapping action, the rotating ring 22 has been turned to an initial s position such that the end 33a of the plastic film band 32a in the band holder 34a of the first wrapping carriage 30a is aligned with the jaws 51 of the switch-over gripper unit 50.
Next, the switch-over gripper unit 50 moves to the left in Fig. 6 and the gripper jaws 51 grip the end 33a of the plastic film band 32a in holder 34a, as is also shown in Fig. 2.
After that, the gripper jaws 51 pull the end 33a of the plastic film band 32a to the right in Fig. 6 so that the plastic film band 32a extends across the gripper 41 of the seaming unit 40. This situation is also illustrated in Fig. 3. The gripper 41 now engages the plastic film band 32a and the jaws 51 of the switch-over gripper unit 50 are opened, as is also shown in Fig. 4. After the switch-over gripper unit 50 has moved down to be out of the way of the wrapping carriages 30a and 30b, the machine can start wrapping the object 60 on the conveyor track 61 from the roll 31 a on wrapping carriage 30a.
ADDITIONAL REMARKS
It is obvious to the person skilled in the art that different embodiments of the invention 2o may be varied within the scope of the claims presented below. Thus, the invention is not limited to the ring-type wrapping machine presented in the drawings. In a corresponding manner, other types of wrapping machine can equally well be provided with two or more wrapping carriages or similar wrapping devices for winding a plastic film band, so that a substantially more effective roll change can be achieved.
Claims (7)
1. Method for improving the operating efficiency of a wrapping machine (10), in which wrapping method - at least two plastic film band rolls (31a, 31b) are placed inside the wrapping machine (10), - plastic film band (32) from at least one roll (31) is wound about the object (60) to be wrapped next, - after the object (60) has been wrapped, the plastic film band (32) is seamed and severed, whereupon the next object can be wrapped, - and the wrapping action can be continued until all the plastic film band (32) on the roll (31) has been used up, characterized in that - when the wrapping machine (10) is stopped at least two plastic film band rolls (31a, 31b) are placed inside the wrapping machine in separate wrapping devices (30a, 30b), such as wrapping carriages, - during wrapping the said plastic film band rolls (31a, 31b) and the wrapping devices (30a, 30b) are circulating around the object (60) to be wrapped, - the wrapping operation is started by wrapping plastic film band (32a) from the first plastic film band roll (31a), while the other plastic film band rolls (31b) are circulating with the first roll as stand-by rolls around the object (60) to be wrapped ready for use when the said first plastic film band roll is exhausted, and - after the said first plastic film band roll (31a) has been exhausted, the wrapping operation is continued from another, full plastic film band roll (31b) placed inside the wrapping machine (10), and the said first exhausted plastic film band roll is circulating with the other rolls around the object (60) to be wrapped.
2. Method as defined in claim 1, characterized in that after the first plastic film band roll (31a) of the first wrapping device (30a) being used for wrapping has been exhausted, the wrapping operation is continued using the full plastic film band roll (31b) of another wrapping device (30b) circulating around the object (60) to be wrapped.
3. Method as defined in claim 1 or 2, characterized in that the wrapping operation is started or continued using a wrapping device (30a) containing a full plastic film band roll (31a) by gripping the end (33a) of the plastic film band (32a) coming from the full plastic film band rail and locking it in place before starting the wrapping of the next abject to be wrapped.
4. Apparatus for improving the operating efficiency of a wrapping machine (10), said wrapping machine comprising - at least two wrapping devices (30a, 30b), such as wrapping carriages, provided with plastic film band rolls (31a" 31b) to allow plastic film band (32a, 32b) to be wound around the object (60) to be wrapped, - and means (40) for seaming and severing the plastic film band (32a, 32b).
characterized in that - the wrapping machine (10) comprises at least two separate wrapping devices (30a, 30b), such as wrapping carriages, which during wrapping circulate around the object (60) to be wrapped, each wrapping device (30a, 30b) is comprising a plastic film band roll (31a, 31b), which rolls are also circulating with the wrapping devices around the object (60) to be wrapped during wrapping, and - the wrapping machine (10) comprises means (50) for switching the wrapping process from the said first exhausted plastic film band roll (31 a) circulating around the object (60) to be wrapped to another full plastic film band roll (31 b) circulating around the object to be wrapped.
characterized in that - the wrapping machine (10) comprises at least two separate wrapping devices (30a, 30b), such as wrapping carriages, which during wrapping circulate around the object (60) to be wrapped, each wrapping device (30a, 30b) is comprising a plastic film band roll (31a, 31b), which rolls are also circulating with the wrapping devices around the object (60) to be wrapped during wrapping, and - the wrapping machine (10) comprises means (50) for switching the wrapping process from the said first exhausted plastic film band roll (31 a) circulating around the object (60) to be wrapped to another full plastic film band roll (31 b) circulating around the object to be wrapped.
5. Apparatus as defined in claim 4, c h a r a c t e r i z e d in that - the wrapping machine (10) comprises at least two separate wrapping devices (30a, 30b) containing a plastic film band roll (31a, 31b), such as wrapping carriages circulating around the object (60) to be wrapped, and that - the wrapping machine (10) is provided with a switch-over gripper (50) for gripping the end (33b) of the plastic film band (32b) coming from a full plastic film band roll (31 b).
6. Apparatus as defined in claim 4 or 5, c h a r a c t e r i z e d in that - when the rotation of the wrapping device (30) is stopped the switch-over gripper (50) can be moved to a position near the end (33) of the plastic film band (32) coming from the plastic film band roll (31) and in a direction away from said plastic film band end, and that - a seaming gripper (40) is placed near the path of the switch-over gripper (50), and that - the seaming grippes (40) has been arranged to grip the plastic film band (32) drawn out from the plastic film band roll (31) by the switch-over grippes (50).
7. Apparatus as defined in claim 4, 5 or 6, c h a r a c t e r i z e d in that the wrapping device (30), such as wrapping carriage circulating around the object (60) to be wrapped and containing a plastic film band roll (31) is provided with a holder (34) in which the end (33) of the plastic film band (32) is set so that it can be gripped by the switch-over gripper (50) when the rotation of the wrapping device is stopped.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20001779 | 2000-08-10 | ||
| FI20001779A FI20001779A (en) | 2000-08-10 | 2000-08-10 | Method and apparatus for streamlining the operation of a winding machine |
| PCT/FI2001/000702 WO2002012065A1 (en) | 2000-08-10 | 2001-08-08 | A method and an apparatus for improving functioning of a wrapping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2418366A1 true CA2418366A1 (en) | 2002-02-14 |
Family
ID=8558873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002418366A Abandoned CA2418366A1 (en) | 2000-08-10 | 2001-08-08 | A method and an apparatus for improving functioning of a wrapping machine |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1317377A1 (en) |
| AU (1) | AU2001279865A1 (en) |
| CA (1) | CA2418366A1 (en) |
| FI (1) | FI20001779A (en) |
| WO (1) | WO2002012065A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180279559A1 (en) * | 2017-03-31 | 2018-10-04 | Deere & Company | Wrapping arrangement and round baler with such |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080229716A1 (en) | 2007-03-19 | 2008-09-25 | Illinois Tool Works Inc. | Film wrapping machine simultaneously utilizing two film carriage assemblies |
| DE102011000205B4 (en) | 2011-01-18 | 2014-07-17 | Illinois Tool Works Inc. | Apparatus and method for reefing a tubular film section |
| DE102011075451B4 (en) | 2011-05-06 | 2014-05-08 | Illinois Tool Works Inc. | Method and device for impinging a tubular film section on the refining fingers of a packaging installation |
| FI124180B (en) | 2011-09-30 | 2014-04-15 | Illinois Tool Works | Method of bringing a winding machine into a transport position and winding machine |
| FI125661B (en) | 2012-09-07 | 2015-12-31 | Signode Int Ip Holdings Llc | Method and apparatus for attaching corner guard to a load |
| FI125411B (en) | 2013-10-31 | 2015-10-15 | Signode Internat Ip Holdings Llc | Method and Attachment Device for Attaching the End of a Wrapping Film Web to a Wrapping Machine, and a Wrapping Machine |
| DE102015101489A1 (en) | 2015-02-02 | 2016-08-04 | Signode Industrial Group Llc | Packaging device and method of operating the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI78433C (en) * | 1987-05-27 | 1989-08-10 | Haloila M Oy Ab | Device and method for replacing the film roll by winding |
| SE8901489D0 (en) * | 1989-04-24 | 1989-04-24 | Billberg A Ab | BALANCING OF PACKAGING ROLLS TYPE OF STRAIGHT FILM, PAPER, NAET AND LIKE |
| JPH05221409A (en) * | 1992-02-04 | 1993-08-31 | Fuji Seisakusho:Kk | Apparatus for continuous wrapping with synthetic resin film |
| ATE222685T1 (en) * | 1998-09-23 | 2002-09-15 | Welmount Ltd | HOLDER FOR FILM MATERIAL IN ROLL FORM |
| FI106785B (en) * | 1999-06-10 | 2001-04-12 | Pesmel Oy | Arrangement and method for wrapping a piece |
-
2000
- 2000-08-10 FI FI20001779A patent/FI20001779A/en not_active Application Discontinuation
-
2001
- 2001-08-08 AU AU2001279865A patent/AU2001279865A1/en not_active Abandoned
- 2001-08-08 EP EP01958127A patent/EP1317377A1/en not_active Withdrawn
- 2001-08-08 CA CA002418366A patent/CA2418366A1/en not_active Abandoned
- 2001-08-08 WO PCT/FI2001/000702 patent/WO2002012065A1/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180279559A1 (en) * | 2017-03-31 | 2018-10-04 | Deere & Company | Wrapping arrangement and round baler with such |
| US10721871B2 (en) * | 2017-03-31 | 2020-07-28 | Deere & Company | Wrapping arrangement and round baler with such |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002012065A1 (en) | 2002-02-14 |
| FI20001779A0 (en) | 2000-08-10 |
| FI20001779A (en) | 2002-02-11 |
| EP1317377A1 (en) | 2003-06-11 |
| AU2001279865A1 (en) | 2002-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |