EP0698424A1 - Method and apparatus for removing a film from a container - Google Patents
Method and apparatus for removing a film from a container Download PDFInfo
- Publication number
- EP0698424A1 EP0698424A1 EP95250203A EP95250203A EP0698424A1 EP 0698424 A1 EP0698424 A1 EP 0698424A1 EP 95250203 A EP95250203 A EP 95250203A EP 95250203 A EP95250203 A EP 95250203A EP 0698424 A1 EP0698424 A1 EP 0698424A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- container
- guiding member
- set forth
- cutting
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/083—Removing scrap from containers, e.g. removing labels
Definitions
- This invention relates to a method and apparatus for removing a tubular film from a container, the film being fitted on a surface of the container.
- a container such as a glass bottle, a polyethylene terephthalate (PET) bottle and other plastic containers usually has a label attatched thereon to display a trade mark, ornamental designs or letters, or has a film to protect the container against an impact or the like from outside.
- PET polyethylene terephthalate
- a stretch film having a self expanding and shrinking property is widely used for such application.
- the container is made of a relatively soft material, such as polyethylene terephthalate, or other plastic material other than a hard material such as glass, and the film is cut by the high-pressure water jet as described above, the container is likely to be damaged by the water jet.
- the film is made of a shrink film, its tension force can be used to tear the film.
- the film is made of a stretch film, since the film tends to expand by an outside pressure, it is difficult to tear the film via the pressure of the water jet. The hot blast and the wire brush may also damage the container as in the above cases.
- the present invention provides a method for removing a film from a container.
- the film having a tubular shape and a self expanding and shrinking property, is first lifted at its one end from the container via a film lifting means.
- a guiding member is then interposed between the film and the container from the lifted one end. As the guiding member is moved relative to the container in an axial direction of the container, the film is entirely cut from its one end to its opposite end by a cutting means.
- the present invention further provides an apparatus for removing a film from a container.
- the apparatus includes means for lifting the film at one end thereof from the container, the film having a self expanding and shrinking property, and a guiding memember for being interposed between the one end of the film and the container.
- the guiding member is movable relative to the container in an axial direction of the container.
- the apparatus further includes means for entirely cutting the film from the one end of the film to the opposite end thereof which is previously spaced apart from the container by the guiding member, as the guiding member is moved relative to the container.
- the guiding member is interposed between the film and the container from the lifted one end of the film to space the film away from the guiding member.
- the cutting means then cuts the film from the one end to the opposite end via the relative movement of the cutting means and the container.
- a tension force effected by an elastical shrinkage of the film acts on the film in a circumferential direction of the film.
- the film lifting means may comprise a nozzle, from which a pressurized fluid is discharged.
- the film is lifted at its one end from the container via a pressure of the fluid, forcing against a self shrinkage force of the film.
- a pressure of the fluid may be set only to such a degree that the film can be lifted apart from the container, but not damaging the container.
- the belt rotating members gradually move the film towards an axial center of the container via the rotation of the belts to slacken the film between the belts. As a result, the film can be lifted from the container to enable the cutting means to cut the film without damaging the film.
- the apparatus includes means for collecting the film cut by the cutting means, the film is securely removed from the container. Therefore, it is unlikely that the film is left in the proximity of the container, and obstracts a series of the operation including cutting, stripping and collecting of the film. Thus, the film removing operation can be smoothly carried out.
- the film collecting means may comprise a plurality of rollers positioned in such a manner as to clamp the film cut by the cutting means, and means for stripping the film from the container by rotating the rollers, as the film is clamped by the rollers. With this arrangement, the film can be securely and readily removed from the container via the rotation of the rollers.
- the speed of the film stripping operation may be readily adjusted.
- FIG. 1 is a front view illustrating an apparatus in accordance with a first embodiment of the present invention.
- FIG. 2 is a front view illustrating an essential portion of the apparatus of FIG. 1.
- FIG. 3 is a plan view with a partial cross section illustrating an essential portion of the apparatus of FIG. 1.
- FIG. 4(a) is a perspective view illustrating a guiding member and a cutter in accordance with the first embodiment.
- FIG. 4(b) is a front view with a partial cross section illustrating an operational step, in which a film is spaced at its one end from a container via a pressurized air discharged from the nozzle.
- FIG. 4(c) is a front view with a partial cross section illustrating an operational step, in which the film is cut by the cutter.
- FIGS. 5(a) to 5(d) are front views illustrating a series of the cutting operation of the film, which are carried out by the cutting mechanism.
- FIG. 5(a) illustrates the film with its one end lifted from the container.
- FIG. 5(b) illustrates the guiding member interposed between the film and the container.
- FIG. 5(c) illustrates the film cut by the cutter.
- FIG. 5(d) illustrates a state in which the cutting operation is completed.
- FIG. 6 illustrates a front view illustrating the apparatus in accordance with a second embodiment of the present invention.
- FIG. 7(a) is a plan view illustrating a film lifting means of the apparatus of the FIG. 6.
- FIG. 7(b) is a front view with a partial cross section illustrating the film lifting means of FIG. 7(a).
- FIG. 8 is a side view illustrating a cutting mechanism of the apparatus of FIG. 6.
- FIG. 9 is a schematic front view illustating a film collecting means of the apparatus of FIG. 6.
- FIG. 10 is a schematic plan view illustrating the collecting means of FIG. 9.
- FIG. 11 is a front view illustrating the apparatus in accordance with a third embodiment of the present invention.
- FIG. 12 is a front view illustrating an essential portion of the apparatus of FIG. 11.
- FIG. 13(a) is a plan view illustrating an operational step, in which the container has been transported to the cutting mechanism.
- FIG. 13(b) is a plan view illustrating an operational step, in which the container has been transported to a film stripping mechanism.
- FIG. 14 is a cross section illustrating an operational step, in which the guiding member is inserted inside of the film. Alternate long and two short dashes lines represent the film which is stripped from the container.
- FIG. 15 is a front view illustrating an essential portion of the apparatus in accordance with a fourth embodiment of the present invention.
- FIG. 16 is a plan view illustrating the essential portion of the apparatus of FIG. 15.
- FIG. 17(a) is a front view with a partial cross section illustrating the film lifting means in accordance with another embodiment of the present invention.
- FIG. 17(b) is a side view illustrating the film lifting means of FIG. 17(a).
- FIG. 17(c) is a side view illustrating the film lifting means in accordance with a further embodiment of the present invention.
- FIG. 18(a) is a side view illustrating the film lifting means in accordance with a still further embodiment of the present invention.
- FIG. 18(b) is a front view illustrating the film lifting means of FIG. 18(a).
- FIG. 19(a) is a front view illustrating an essential portion of the cutting means in accordance with a further embodiment of the present invention.
- FIG. 19(b) is a cross sectional side view illustrating the cutting means of FIG. 19(a).
- FIG. 19(c) is a front view illustrating the cutting means in accordance with a still further embodiment of the present invention.
- FIG. 20(a) is a perspective view illustrating the guiding member in accordance with another embodiment of the present invention.
- FIG. 20(b) is a front view illustrating the guiding member of FIG. 20(a).
- FIG. 20(c) is a plan view illustrating the guiding member of FIG. 20(a).
- FIG. 21(a) is a side view illustrating the container vertically transported with the apparatus in accordance with another embodiment of the present invention.
- FIG. 21(b) is a side view illustrating a state in which the guiding member has been lowered.
- FIG. 22 is a front view of the guiding member of FIG. 21(a)
- FIGS. 1 to 5 illustrate an apparatus in accordance with a first embodiment of the present invention.
- a plurality of containers 1 made of a synthetic resin, for example, in the form of a PET bottle respectively have ports 1a, and are horizontally placed on a transporting mechanism 3 such that the ports 1a of the containers 1 are directed towards a downstream side of the apparatus.
- the transporting mechanism 3 includes a plurality of container fixing jigs 2 with a predetermined space from each other.
- a plurality of the containers 1 are respectively fixed to the fixing jigs 2, as best shown in FIGS. 2 and 3, and are successively transpornted by the transporting mechanism 3 in the direction of arrow A.
- Tubular films 4 as a label, are fitted over respective surfaces of cylindrical bodies of the containers 1 to display a trade mark, ornamental design and the like thereon.
- the film 4 is made of a polyethylene stretch film having a thickness of about 30 to 100 ⁇ m, and has a self expanding and shrinking property. The film 4 thus formed is fitted over the container 1 under tension.
- a cutting mechanism 6 includes an air nozzle 9 as a film lifting means, a guiding member 14, and a cutter 21 as a film cutting means.
- the air nozzle 9 discharges a pressurized air between the container 1 to be transported and an one end 4a of the film 4 which is closer to the port 1a of the container 1. This pressurized air enables the one end 4a to be lifted and spaced apart from the container 1.
- the nozzle 9 is fixed to a post 12, which is, in turn, fixed to the transporting mechanism 3, such that a nozzle port 10 of the nozzle 9 is inclined downwardly towards the container 1.
- a guiding member 14 is made of a synthetic resin, and is positioned below the air nozzle 9.
- the guding member 14 is fixed at its base portion to a fixing portion 16 protruding from the post 12 via a pivot 17 in such a manner as to be pivotally movable in the directions of arrows of FIG. 2.
- the guiding member 14 is positioned such that a tip portion 14a thereof is directed towards the upstream side of the apparatus.
- the tip portion 14a of the guiding member 14 is bent downwardly, and a spherical portion 15 is integrally formed at the tip portion 14a.
- the air nozzle 9 and the guiding member 14 are positioned above the container 1 and along an axial center of the container 1.
- a spring 20 is provided between the fixing portion 16 and the base portion of the guiding member 14 such that the spherical portion 15 of the guiding member 14 is usually urged towards the surface of the container 1 via a spring force of the spring 20, and abuts against the same.
- An upper edge of the tip portion 14a of the guiding member 14 becomes gradually higher towards the base portion of the guiding member 14.
- the cutter 21 of a triangular shape is provided at a rear portion of the tip portion 14a of the guiding member 14 in such a manner as to become higher towards the base portion of the guiding member 14.
- a cutting edge 21a along an uppermost edge of the cutter 21 has substantially the same slanting angle as that of the tip portion 14a of the guiding member 14.
- a vacuum mechanism 22 is positioned downstream of the cutting mechanism 6 and on either side of the longitudinal path of the transporting mechanism 3 in such a manner as to suck and collect the film 4 cut by the cutter 21, as illustrated in FIG. 1.
- a fluid discharging mechanism 24 is positioned downstream of the vacuum mechanism 22, and includes a fluid discharging member 29 carrying a plurality of exhaust nozzles 28 and positioned above the container 1, and a tank 30 in which a pressurized water to be discharged from the exhaust nozzles 28 is stored, which water is supplied to the fluid discharging member 29 via a pipe 31. With this fluid discharging mechanism 24, the film 4, which has not been collected by the vacuum mechanism 22 and still remains on the container 1, can be collected by discharging a mixture of air and water to the film 4. This fluid discharging mechanism 24 and the vacuum mechanism 22 make up a film collecting means.
- a plurality of the containers 1 are first fitted to the respective container fixing jigs 2 such that the ports 1a of the containers 1 are directed towards the upstream side in a transporting direction A of the container 1.
- the air nozzle 9 discharges the pressurized air towards each container 1 such that the pressurized air is intruded between the container 1 and the one end 4a of the film 4 to lift and space the one end 4a from the container 1, as illustrated in FIG. 5(a). Accordingly, the film 4 can be securely and readily lifted from the container 1 by the pressurized air via the self expanding and shrinking property of the film 4.
- the spherical portion 15 of the guiding member 14 abuts against a tapered shoulder portion 1b of the container 1, and during the transportation of the container 1, the spring 20 urges the guiding member 14 downwardly such that the spherical portion 15 of the guiding member 14 slides along a surface of the shoulder portion 1b of the container 1, and the tip portion 14a of the guiding member 14 is intruded between the film 4 and the container 1, as illustrated in FIGS. 4(b) and 5.
- the container 1 are then transported to the next station, in which the film 4 is spaced apart from the container 1 by the tip portion 14a of the container 14, forcing against the elastic shrinkage force of the film 4, and the film 4 subsequently slides along the tip portion 14a of the guiding member 14 via the relative movement of the guiding member 14 and the container 1.
- the guiding member 14 guides the film 4 to the cutter 21, the cutter 21 entirely cuts the film 4 from the one end 4a of the film 4 to the opposite end thereof, since the cutter 21 is moved together with the guiding member 14, as illustrated in FIGS. 4(c), 5(c) and 5(d).
- the pressure of the discharged air from the air nozzle 9 is controlled only to such a degree to lift the film 4 from the container 1. Therefore, it is unlikely that the pressurized air damages the container 1 made of the synthetic resin.
- the tip portion 14a of the guiding member 14 slides at its spherical portion 15 along the surface of the container 1, the tip portion 14a can be securely interposed between the container 1 and the film 4, while preventing the spherical portion 15 from damaging the surface of the container 1.
- the film 4 cut by the cutter 21 is then sucked by the vacuum mechanism 22 and is collected at a predetermined position. Even if contents of the container 1 such as a liquid and the like happen to be intruded between the container 1 and the film 4, causing the film 1 to stick to the container 1, and the vacuum mechanism 22 could not suck the film 4 because of such stickiness, the film 4 can be securely stripped from the container 1 by discharging the pressurized air and water from the fluid discharging member 29 to the film 4, as the container 1 passes through the fluid discharging mechanism 24. The containers 1 with the film 4 stripped therefrom are transported to the next process and are collected at a predetermined position.
- the vacuum mechanism 22 and the fluid discharging mechanism 24 are employed as the film collecting means.
- FIGS. 6 to 10 illustrate the apparatus in accordance with a second embodiment of the present invention.
- One or more nozzles 46 are positioned above the container 1 for discharging a pressurized cold or hot water between the film 4 and the container 1.
- a pair of belt rotating members 47 are disposed downstream of the nozzle 46, and each belt rotating member 47 includes a pair of pulleys 49a and 49b positioned along the transporting direction A of the container 1, and an endless rubber belt 50 with a plurality of transverse protrusions 50b thereon wound around the pulleys 49a and 49b.
- the belt rotating members 47 gradually become closer to each other towards the downstream side of the transporting mechanism 3, as illustrated in FIG. 7(a), and the belt rotating members 47 are inclined such that imaginary vertical axes of the belt rotating members 47, which come across rotational axes of the belt rotating members 47 at right angles, are directed substantially towards an axial center of the container 1, as illustrated in FIG. 8.
- Rotating shafts 52 of the pulleys 49a positioned an upstream side of the belt rotating members 47 are connected together via a universal coupling 53, enabling both belts 50 to be moved in association with each other.
- the endless rubber belts 50 are rotated in such a direction that a film contacting portion 50a of each belt 50 is moved in the same direction as the transporting direction A of the container 1. It is preferable that the rotational speed of the endless rubber belts 50 is set substantially at the same speed as the transporting speed of the container 1.
- the guiding member 14 has substantially a semi-cylindrical body for covering an outer periphery of the container 1, a lower end of which being open to outside.
- the tip portion 14a extends from the semi-cylindrical body between the opposite pulleys 49b at a downstream end portion of the endless rubber belts 50, and is provided with the cutter 21 of a triangular shape. This arrangement enables the tip portion 14a to be readily inserted into the space between the film 4 and the container 1, and enables the cutter 21 to subsequently and securely cut the film 4.
- the guiding member 14 advances between the film 4 and the container 1 such-that any fragments of the film 4 sticked to the surface of the container 1 can be forcibly stripped and removed from the container 1 along an outer surface of the guiding member 14.
- the nozzle 9 is also arranged above the cutter 21 as in the first embodiment.
- a film stripping belt member 55 as a means for stripping the film 4 is disposed on either side of the longitudinal path of the transporting mechanism 3, and an air nozzle 56 is positioned on the side opposite to the stripping belt member 55 with the transporting mechanism 3 therebetween to apply an air pressure to the container 1, thereby moving a flagment 4b of the film 4 towards the stripping belt member 55.
- the stripping belt member 55 and the air nozzle make up a means for collecting the film 4.
- the stripping belt member 55 includes a pair of upper and lower endless belt members 58 and 59 which are respectively supported by a plurality of pulleys 54 in such a manner as to be circulated, and which are gradually and downwardly inclined downstream of the transporting mechanism 3.
- the lower belt member 59 includes a film receiving portion 58a which horizontally extends from a slanting portion thereof towards the upstream side of the transporting mechanism 3, and an upper surface of the lower belt memer 59 are positioned substantially at the same height as the axial center of the container 1 to receive the fragment 4b of the film 4 thereon.
- a collecting bucket 60 is disposed below the downstream side of the upper and lower belt members 58 and 59 to collect the film 4 stripped by the belt members 58 and 59.
- the containers 1 are successively transported in the same manner as that of the first embodiment, and are subsequently subjected to the cooling or hot water discharged from the nozzle 46 under a predetermined pressure. This water is introduced between the container 1 and the film 4 to enable the film 4 to be readily released from the container 1, even if the film 4 sticks to the container 1 via the dried contents of the container 1 therebetween.
- the belt rotating members 47 press the film 4 and gradually move the film 4 towards a longitudinal center of the container 1 in such a manner as to lift the film 4 from the container.
- a period of time for the processes from the water discharging to the film lifting via the belt rotating members 47 may be varied to allow the discharged water to intrude between the film 4 and the container 1 to weaken the sticking force of the film 4 to the container 1.
- the pressurized air is applied to the film 4 which has been lifted by the belt rotating members 47 to keep the film 4 in a spaced relationship with the container 1.
- the tip portion 14a of the guiding member 14 is interposed between the container 1 and the film 4, and then the cutter 21 cuts the film 4 entirely from the one end 4a of the film 4 to the opposite end thereof. In this step, it is not necessary to dispose the air nozzle 9 in the apparatus, provided that the belt rotating members 47 can solely lift the film 4.
- the flagment 4b of the film 4 is then bent and moved onto the receiving portion 58a of the stripping belt 55, and is transported in this state together with the container 1.
- the flagment 4b is then clamped by the upper and lower belt members 58 and 59, and is forcibly pulled downward by the belt members 58 and 59 in cooperation with the movement of the container 1.
- the film 1 is thus removed from the container 1 and falls into the collecting bucket 60 for a further treatment.
- FIGS. 11 to 16 illustrate the apparatus in accordance with a third embodiment of the present invention.
- the container 1, in the form of the PET bottle or the like is provided on its surface with the tubular film 4 as in the first and second embodiments.
- the containers 1 are horizontally placed on the transporting mechanism 3 such that the ports 1a are directed downstream of the transporting mechanism 3.
- the container 1 are fitted to the respective container fixing jigs 2 and are successively transported in the direction of arrow A in a fixed state.
- the cutting mechanism 6 has the same arrangement as in the second embodiment. That is, it includes a pair of the belt rotating members 47 and the air nozzle 9 as the film lifting means, and the cutter 21 as the cutting means.
- each member 47 includes a pair of the pulleys 49a and 49b, and the endless rubber belt 50 with a plurality of the transverse protrusions 50b thereon wound around the pulleys 49a and 49b.
- the guiding member 14 has the semi-cylindrical body, extends at its tip portion 14a between the pulleys 49b at a downstream end portion of the endless belt members 50, and is provided at its tip portion 14a with the cutter 21 of a triangular shape, as in the second embodiment.
- the nozzle 46 is also provided in such a manner as to discharge the pressurized cold or hot water between the film 4 and the container 1, as in the second embodiment.
- a film removing mechanism 25 includes rubber mounted upper and lower rollers 26 and 27, and is disposed downstream of the cutting mechanism 6 and on either side of the longitudinal path of the transporting mechanism 3 to remove the film 4, which has been stripped from the container 1, by clamping the film 4.
- An abutment between the upper roller 26 and the lower roller 27 is positioned substantially at the same height as the axial center of the container 1.
- the lower roller 27 includes a pair of rollers 27a and 27b disposed in a parallel relationship with the transporting mechanism 3, as illustrated in FIGS. 13(a), 13(b) and 14.
- the lower roller 27a is positioned adjacent the transporting mechanism 3 and is connected to a motor 40 via a belt 41.
- Another lower roller 27b is positioned outside of the roller 27, and is associated therewith via the upper roller 26. With this arrangement, the rotational force from the motor 40 is transmitted to the roller 27a to cause the roller 27a to be rotated in the direction of arrow B.
- the upper roller 26 and the lower roller 27b are subsequently rotated in the directions indicated by arrows of FIG. 14.
- the lower rollers 27a and 27b extend from the upper roller 26 to form a film guiding portion 28 with their upper surfaces to guide the film 4 towards the abutment between the upper and lower rollers 26 and 27, as illustrated in FIGS. 12 and 13.
- An air nozzle 56 as a film removing means, is disposed on the opposite side to the film removing mechanism 25 with the transporting mechanism 3 therebetween to discharge the pressurized air towards the film 4 to remove the film 4 from the container 1.
- the collecting bucket 60 is disposed below the downstream side of the film removing mechanism 25 to collect the film 4 stripped by the film removing mechanism 25.
- the bucket 60, the film removing mechanism 25 and the air nozzle 56 make up a film collecting means.
- the containers 1 are horizontally placed on the transporting mechanism 3 such that the ports 1a are directed downstream of the apparatus, and are fixed to the respective container fixing jigs 2.
- the containers 1 are successively transported by the transporting mechanism 3 in a fixed state, and are subjected to the water treatment, in which the pressurized water is discharged towards the container 1 from the nozzle 46 to thereby remove the contents of the container 1 which happened to intrude between the film 4 and the container 1.
- the sticking force of the film 4 is thus weakened.
- the containers 1 are then transported by the transporting mechanism 3 to the cutting mechanism 6, in which the belt rotating members 47 presses and gradually move the film 4 towards the longitudinal center of the container 1 in such a manner as to lift the film 4 from the container 1, as illustrated in FIG. 14.
- the air nozzle 9 discharges the pressurized air to the film 4 to keep the film 4 in a spaced relationship with the container 1.
- the tip portion 14a of the guiding member 14 is interposed between the film 4 and the container 1 from the lifted end of the film 4, and the cutter 21 subsequently cuts the film 4 as in the second embodiment.
- any fragments of the film 4 left on the container 1 can be forcibly removed from the container 1 by interposing the guiding member 14 between the film 4 and the container 1.
- the film 4 is then cut up, and edges of the film 4 are forced sidewards.
- the flagment 4b of the film 4 is thus placed on the film guiding portion 28 of the film removing mechanism 25.
- the air nozzle 56 discharges the pressurized air to the container 1 from the side opposite to the film removing mechanism 25 with the transporting mechanism 3 therebetween such that the flagment 4b of the film 4 is blown towards the guiding portion 28 of the film removing mechanism 25, even if the film 4 is left on the container 1, after the film stripping operation has been done by the guiding member 14.
- the film 4 is moved in the transporting direction of the container 1 together with the container 1.
- the film 4 is guided to the abutment of the upper and lower rollers 26, 27a and 27b.
- the film 4 is then clamped by these rollers and completely removed from the container 1 by the rotation of the rollers, as indicated by two-dot long and two short dashes lines of FIG. 14.
- the film 4 removed from the container 1 is then collected by the collecting bucket 60 disposed below the film removing mechanism 25.
- FIGS. 15 and 16 illustrate a fourth embodiment of the present invention.
- the apparatus includes the cutting mechanism 6 for cutting the film 4, the air nozzle 9 and the guiding member 14 as the film lifting means, and the cutter 21 as the cutting means.
- the air nozzle 9 is fixed to the post 12 which, in turn, is fixed to the transporting mechanism 3 such that the nozzle port 10 of the air nozzle 9 is downwardly inclined, as illustrated in FIG. 15.
- the guiding member 14 has the same arrangement of that of the first embodiment. That is, the guiding member 14 is positioned such that the tip portion 14a thereof is directed towards the upstream side of the apparatus.
- the tip portion 14a of the guiding member 14 is bent downwardly, and the spherical portion 15 is integrally formed at the tip portion 14a.
- the guiding member 14 is urged downward by the spring 20 such that the spherical portion 15 abuts the surface of the container 1.
- the film removing mechanism 25 has the upper and lower rollers 26 and 27, as disclosed in the third embodiment, and is disposed slightly downstream of the cutting mechanism 6 and on either side of the longitudinal path of the transporting mechanism 3.
- a vacuum mechanism 57 is disposed below the film removing mechanism 25 such that the film 4 fed from the film removing mechanism 25 is sucked and forwarded to the collecting bucket 60.
- the air nozzle 56 is disposed on the opposite side of the transporting mechanism 3 to the film removing mechanism 25, as in the third embodiment. The air nozzle 56 discharges the pressurized air towards the film 4 to strip the same which has been cut by the cutting mechanism 6, as illustrated in FIG. 16.
- the film removing operation will be carried out in the same manner as the above embodiments. That is, the containers 1 are fixed to the respective container fixing jigs 2 such that the ports 1a are directed downstream of the transporting mechanism 3. The containers 1 are then transported to the cutting mechanism 6, in which the air nozzle 9 discharges the pressurized air between the container 1 and the film 4 to lift the one end 4a of the film 4, as illustrated in FIG. 4(b), and the tip portion 14a of the guiding member 14 is inserted between the lifted end portion 4a of the film 4 and the container 1.
- the containers 1 are further transported by the transporting mechanism 3 such that the relative movement of the cutter 21 and the container 1 enables the film 4 to slide along the tip portion 14a of the guiding member 14.
- the guiding member 14 guides the film 4 to the cutter 21 such that the film 4 is entirely cut from the one end 4a of the film 4 to the opposite end thereof.
- the one end 4b of the film 4, which has been cut by the cuter 21, is moved onto the guiding portion 28 of the film removing mechanism 25 by the pressurized air discharged from the air nozzle 56 positioned on the opposite side of the transporting mechanism 3.
- the film 4 is then clamped and removed from the container 1 by the upper and lower rollers 26 and 27.
- the film 4, which has been moved out of the transporting mechanism 3, is sucked and forwarded to the collecting bucket 60 by the vacuum mechanism 57. In this arrangement, it is not necessary to dispose the vacuum mechanism 57 in the apparatus of this embodiment.
- the lower rollers 27 of the film removing mechanism 25 is formed of a pair of the lower rollers 27, but the lower roller 27 may be formed by one lower roller.
- the guiding portion 28 facilitates the guiding of the film 4 via the rotation thereof to the abutment of the upper and lower rollers 26 and 26.
- the film lifting means may be formed of a roller 63 with a rubber ring 62 thereon, which is rotatably positioned above the longitudinal center of the container 1, in which a rotational axis of the roller 63 extends in a direction transverse to the transporting direction A of the container 1.
- the roller 63 is rotated in the reverse direction to the transporting direction A of the container 1, as indicated by the arrow of FIG. 17(a), such that the rubber ring 62 lifts the one end 4a of the film 4 via friction between the rubber ring 62 and the film 4, when pressing the end 4a of the film 4.
- the film lifting means may be formed of a pair of rollers 63 which are disposed above the container 1 at positions corresponding to both sides of the container with the longitudinal center of the container 1 therebetween, as illustrated in FIG. 17(c).
- the film lifting means may be formed of a pair of clamping arms 65, both upper ends of which are pivotally connected together via a pivot 66, as illustrated in FIGS. 18(a) and 18(b).
- the clamping arms 65 are driven by a cylinder or an electric motor (not shown) to clamp and lift the film 4 from the container 1.
- the guiding member 14 is provided along its longitudinal axis with an upwardly facing longitudinal groove 35, and a rotary cutter 36 is pivotally fixed to a stay 37 such that a lower portion of the rotary cutter 36 is inserted into and moved along the groove 35, as illustrated in FIGS. 19(a) and 19(b).
- the film 4 is cut by the rotary cutter 36, as the rotary cutter 36 is rotated via the relative movement of the film 4 and the guiding member 14.
- the rotary cutter 36 may be driven by a conventional driving means such as a motor.
- a laser radiating mechanism 39 as the film cutting means, may be disposed above the guiding member 14, as illustrated in FIG. 19(c). With this arrangement, the film 4 can be cut by a laser radiated from the laser radiating mechanism 39 without damaging the container 1.
- a control unit may be provided to control the air nozzle 9 and the laser radiating mechanism 39 in such a manner as to stop the air dischaging by the the air nozzle 9 at the time of the laser radiation by the laser radiating mechanism 39, or vice versa.
- the guiding member 14 may be varied in shape, as illustrated in FIGS. 20(a), 20(b) and 20(c).
- the guiding member 14 has a cylindrical body, an open end 41, into which the container 1 is insertable, and the tip portion 14a protruding from the cylindrical body 14.
- the cutter 21 of a triangular shape is disposed at the tip portion 14a.
- a pusher 44 is provided in such a manner as to push a container bottom 1c. With this arrangement, the pusher 44 first pushes the container 1, as the air nozzle 9 discharges the pressurized air to lift the film 4 from the container 1.
- the tip portion 14a of the guiding member 14 is then interposed between the film 4 and the container 1 to enable the cutter 21 to cut the film 4 from the lifted portion of the film 4. Since the guiding member 14 is interposed between the container 1 and an entire area of the film 4, the film 4 can be forcibly and securely removed from the container 1.
- This arrangemet can omit the vacuum mechanism 22 and the fluid discharging mechanism 24
- the guiding member 14 abuts and slides along the container 1.
- the guiding member 14 may be spaced apart therefrom. This arrangement also enables the film 4 to be stripped from the container 1 via the relative movement of the container 1 and the cutting mechanism 6.
- the relative movement of the container 1 and the cutting mechanism 6 may be made by moving the cutting mechanism 6 only, while fixing the container 1 in position, or vice versa. Instead, both container 1 and cutting mechanism 6 may be simultaneously moved.
- the container 1 may be vertically placed during the film removing operation, as illustrated in FIGS. 21(a), 21(b) and 21(c).
- the cutting mechanism 6 is vertically moved along the surface of the container 1.
- the cutting mechanism 6 includes a semi-cylindrical guiding member 14, the air nozzle 9 and a pair of belt rotating members 61.
- Each of the belt rotating members 61 includes a pair of roller members 62 mounted to a side of the guiding member 14 and rotatable about rotational axes 62a thereof, and two rotating belts 63 wound around the roller members 62.
- the belt rotating members 61 is thus movable together with the guiding member 14.
- the air nozzle 9 is provided in such a manner as to discharge the pressurized air from an upper portion of the container 1 to the lower portion thereof.
- the film 4 is released from the container 4 via the pressurized air from the nozzle 9, and the guiding member 14 is inserted between the film 4 and the container 1.
- the rotating belts 63 presses the film 4 towards the container 1 to prevent the film 4 from moving when the pressurized air is applied thereto to ensure the cutting operation of the film 4.
- the roller members 62 then are rotated about the rotational axes 62a along the film 4 by the downward movement of the guiding member 14.
- the film 4 is likely to slip downwardly via the downwardly applied pressurized air from the nozzle 9, which may hesitate the smooth cutting of the film 4.
- the rotating belts 63 secure the cutting operation by pressing the film 4 towards the container 1.
- the shape of the container 1 it is not essential to limit the shape of the container 1 to the above embodiments.
- the fluid for removing the film 4 from the container 1 it is not necessary to limit the fluid for removing the film 4 from the container 1 to air.
- Other gasses, or liquid such as water may be discharged from the nozzle.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The present invention provides a method and apparatus for removing a film from a container. The film (4) having a tubular shape and a self expanding and shrinking property, is first lifted at its one end from the container (1) via a film lifting means. A guiding member (14) is then interposed between the film (4) and the container (1) from the lifted one end. As the guiding member (14) is moved relative to the container (1) in an axial direction of the container (1), the film (4) is entirely cut from its one end to its opposite end by a cutting means.
Description
- This invention relates to a method and apparatus for removing a tubular film from a container, the film being fitted on a surface of the container.
- A container, such as a glass bottle, a polyethylene terephthalate (PET) bottle and other plastic containers usually has a label attatched thereon to display a trade mark, ornamental designs or letters, or has a film to protect the container against an impact or the like from outside. A stretch film having a self expanding and shrinking property is widely used for such application.
- To recycle the container, it is necessary to renew the film which may be scratched or stained during transportation or actual use of the container. To remove the film from the container, the film is manually cut with a cutter by a worker, which may cause ineffective film removing. In addition, it is difficult to automatically carry out this film removing method.
- To solve the above problem, there has been proposed a method for cutting the film by applying a high-pressure water jet between the film and the container, as disclosed in Japanese Patent Kokoku (Publication) No. 60-42115. Further, instead of the high-pressure water jet, a hot blast, and a wire brush has been employed to cut the film.
- However, in case the container is made of a relatively soft material, such as polyethylene terephthalate, or other plastic material other than a hard material such as glass, and the film is cut by the high-pressure water jet as described above, the container is likely to be damaged by the water jet. In addition, when the film is made of a shrink film, its tension force can be used to tear the film. However, when the film is made of a stretch film, since the film tends to expand by an outside pressure, it is difficult to tear the film via the pressure of the water jet. The hot blast and the wire brush may also damage the container as in the above cases.
- Therefore, it is an object of the present invention to provide a method and apparatus for securely and readily removing a film having a self expanding and shrinking property from a container without causing a damage to the container, even when the container is made of a soft material such as a synthetic resin.
- The present invention provides a method for removing a film from a container. The film having a tubular shape and a self expanding and shrinking property, is first lifted at its one end from the container via a film lifting means. A guiding member is then interposed between the film and the container from the lifted one end. As the guiding member is moved relative to the container in an axial direction of the container, the film is entirely cut from its one end to its opposite end by a cutting means.
- The present invention further provides an apparatus for removing a film from a container. The apparatus includes means for lifting the film at one end thereof from the container, the film having a self expanding and shrinking property, and a guiding memember for being interposed between the one end of the film and the container. The guiding member is movable relative to the container in an axial direction of the container. The apparatus further includes means for entirely cutting the film from the one end of the film to the opposite end thereof which is previously spaced apart from the container by the guiding member, as the guiding member is moved relative to the container.
- In the method of the present invention, when the film is lifted at its one end from the container by the film lifting means, the guiding member is interposed between the film and the container from the lifted one end of the film to space the film away from the guiding member. The cutting means then cuts the film from the one end to the opposite end via the relative movement of the cutting means and the container. A tension force effected by an elastical shrinkage of the film acts on the film in a circumferential direction of the film. As a result, the film is securely and readily cut without damaging the container.
- The film lifting means may comprise a nozzle, from which a pressurized fluid is discharged. In this arrangement, the film is lifted at its one end from the container via a pressure of the fluid, forcing against a self shrinkage force of the film. A pressure of the fluid may be set only to such a degree that the film can be lifted apart from the container, but not damaging the container.
- Further, when a pair of belt rotating members, each having a belt, are employed for the film lifting means, the belt rotating members gradually move the film towards an axial center of the container via the rotation of the belts to slacken the film between the belts. As a result, the film can be lifted from the container to enable the cutting means to cut the film without damaging the film.
- When the apparatus includes means for collecting the film cut by the cutting means, the film is securely removed from the container. Therefore, it is unlikely that the film is left in the proximity of the container, and obstracts a series of the operation including cutting, stripping and collecting of the film. Thus, the film removing operation can be smoothly carried out.
- The film collecting means may comprise a plurality of rollers positioned in such a manner as to clamp the film cut by the cutting means, and means for stripping the film from the container by rotating the rollers, as the film is clamped by the rollers. With this arrangement, the film can be securely and readily removed from the container via the rotation of the rollers.
- By adjusting the rotational speed of the rollers, the speed of the film stripping operation may be readily adjusted.
- The above, and other objects, features and advantages of the present invention will become apparent from the detailed description thereof read in conjunction with the accompanying drawings.
- FIG. 1 is a front view illustrating an apparatus in accordance with a first embodiment of the present invention.
- FIG. 2 is a front view illustrating an essential portion of the apparatus of FIG. 1.
- FIG. 3 is a plan view with a partial cross section illustrating an essential portion of the apparatus of FIG. 1.
- FIG. 4(a) is a perspective view illustrating a guiding member and a cutter in accordance with the first embodiment.
- FIG. 4(b) is a front view with a partial cross section illustrating an operational step, in which a film is spaced at its one end from a container via a pressurized air discharged from the nozzle.
- FIG. 4(c) is a front view with a partial cross section illustrating an operational step, in which the film is cut by the cutter.
- FIGS. 5(a) to 5(d) are front views illustrating a series of the cutting operation of the film, which are carried out by the cutting mechanism. FIG. 5(a) illustrates the film with its one end lifted from the container. FIG. 5(b) illustrates the guiding member interposed between the film and the container. FIG. 5(c) illustrates the film cut by the cutter. FIG. 5(d) illustrates a state in which the cutting operation is completed.
- FIG. 6 illustrates a front view illustrating the apparatus in accordance with a second embodiment of the present invention.
- FIG. 7(a) is a plan view illustrating a film lifting means of the apparatus of the FIG. 6.
- FIG. 7(b) is a front view with a partial cross section illustrating the film lifting means of FIG. 7(a).
- FIG. 8 is a side view illustrating a cutting mechanism of the apparatus of FIG. 6.
- FIG. 9 is a schematic front view illustating a film collecting means of the apparatus of FIG. 6.
- FIG. 10 is a schematic plan view illustrating the collecting means of FIG. 9.
- FIG. 11 is a front view illustrating the apparatus in accordance with a third embodiment of the present invention.
- FIG. 12 is a front view illustrating an essential portion of the apparatus of FIG. 11.
- FIG. 13(a) is a plan view illustrating an operational step, in which the container has been transported to the cutting mechanism.
- FIG. 13(b) is a plan view illustrating an operational step, in which the container has been transported to a film stripping mechanism.
- FIG. 14 is a cross section illustrating an operational step, in which the guiding member is inserted inside of the film. Alternate long and two short dashes lines represent the film which is stripped from the container.
- FIG. 15 is a front view illustrating an essential portion of the apparatus in accordance with a fourth embodiment of the present invention.
- FIG. 16 is a plan view illustrating the essential portion of the apparatus of FIG. 15.
- FIG. 17(a) is a front view with a partial cross section illustrating the film lifting means in accordance with another embodiment of the present invention.
- FIG. 17(b) is a side view illustrating the film lifting means of FIG. 17(a).
- FIG. 17(c) is a side view illustrating the film lifting means in accordance with a further embodiment of the present invention.
- FIG. 18(a) is a side view illustrating the film lifting means in accordance with a still further embodiment of the present invention.
- FIG. 18(b) is a front view illustrating the film lifting means of FIG. 18(a).
- FIG. 19(a) is a front view illustrating an essential portion of the cutting means in accordance with a further embodiment of the present invention.
- FIG. 19(b) is a cross sectional side view illustrating the cutting means of FIG. 19(a).
- FIG. 19(c) is a front view illustrating the cutting means in accordance with a still further embodiment of the present invention.
- FIG. 20(a) is a perspective view illustrating the guiding member in accordance with another embodiment of the present invention.
- FIG. 20(b) is a front view illustrating the guiding member of FIG. 20(a).
- FIG. 20(c) is a plan view illustrating the guiding member of FIG. 20(a).
- FIG. 21(a) is a side view illustrating the container vertically transported with the apparatus in accordance with another embodiment of the present invention.
- FIG. 21(b) is a side view illustrating a state in which the guiding member has been lowered.
- FIG. 22 is a front view of the guiding member of FIG. 21(a)
- FIGS. 1 to 5 illustrate an apparatus in accordance with a first embodiment of the present invention. A plurality of
containers 1 made of a synthetic resin, for example, in the form of a PET bottle respectively haveports 1a, and are horizontally placed on a transportingmechanism 3 such that theports 1a of thecontainers 1 are directed towards a downstream side of the apparatus. The transportingmechanism 3 includes a plurality ofcontainer fixing jigs 2 with a predetermined space from each other. A plurality of thecontainers 1 are respectively fixed to the fixingjigs 2, as best shown in FIGS. 2 and 3, and are successively transpornted by the transportingmechanism 3 in the direction of arrow A. -
Tubular films 4, as a label, are fitted over respective surfaces of cylindrical bodies of thecontainers 1 to display a trade mark, ornamental design and the like thereon. Thefilm 4 is made of a polyethylene stretch film having a thickness of about 30 to 100 µm, and has a self expanding and shrinking property. Thefilm 4 thus formed is fitted over thecontainer 1 under tension. - A
cutting mechanism 6 includes anair nozzle 9 as a film lifting means, a guidingmember 14, and acutter 21 as a film cutting means. Theair nozzle 9 discharges a pressurized air between thecontainer 1 to be transported and an oneend 4a of thefilm 4 which is closer to theport 1a of thecontainer 1. This pressurized air enables the oneend 4a to be lifted and spaced apart from thecontainer 1. Thenozzle 9 is fixed to apost 12, which is, in turn, fixed to the transportingmechanism 3, such that anozzle port 10 of thenozzle 9 is inclined downwardly towards thecontainer 1. - A guiding
member 14 is made of a synthetic resin, and is positioned below theair nozzle 9. The gudingmember 14 is fixed at its base portion to a fixingportion 16 protruding from thepost 12 via apivot 17 in such a manner as to be pivotally movable in the directions of arrows of FIG. 2. The guidingmember 14 is positioned such that atip portion 14a thereof is directed towards the upstream side of the apparatus. Thetip portion 14a of the guidingmember 14 is bent downwardly, and aspherical portion 15 is integrally formed at thetip portion 14a. Theair nozzle 9 and the guidingmember 14 are positioned above thecontainer 1 and along an axial center of thecontainer 1. - A
spring 20 is provided between the fixingportion 16 and the base portion of the guidingmember 14 such that thespherical portion 15 of the guidingmember 14 is usually urged towards the surface of thecontainer 1 via a spring force of thespring 20, and abuts against the same. An upper edge of thetip portion 14a of the guidingmember 14 becomes gradually higher towards the base portion of the guidingmember 14. Thecutter 21 of a triangular shape is provided at a rear portion of thetip portion 14a of the guidingmember 14 in such a manner as to become higher towards the base portion of the guidingmember 14. Acutting edge 21a along an uppermost edge of thecutter 21 has substantially the same slanting angle as that of thetip portion 14a of the guidingmember 14. - A
vacuum mechanism 22 is positioned downstream of thecutting mechanism 6 and on either side of the longitudinal path of the transportingmechanism 3 in such a manner as to suck and collect thefilm 4 cut by thecutter 21, as illustrated in FIG. 1. A fluid discharging mechanism 24 is positioned downstream of thevacuum mechanism 22, and includes afluid discharging member 29 carrying a plurality ofexhaust nozzles 28 and positioned above thecontainer 1, and atank 30 in which a pressurized water to be discharged from theexhaust nozzles 28 is stored, which water is supplied to thefluid discharging member 29 via apipe 31. With this fluid discharging mechanism 24, thefilm 4, which has not been collected by thevacuum mechanism 22 and still remains on thecontainer 1, can be collected by discharging a mixture of air and water to thefilm 4. This fluid discharging mechanism 24 and thevacuum mechanism 22 make up a film collecting means. - In operation of the apparatus of this arrangement, a plurality of the
containers 1 are first fitted to the respectivecontainer fixing jigs 2 such that theports 1a of thecontainers 1 are directed towards the upstream side in a transporting direction A of thecontainer 1. As thecontainers 1 are transported by the transportingmechanism 3, theair nozzle 9 discharges the pressurized air towards eachcontainer 1 such that the pressurized air is intruded between thecontainer 1 and the oneend 4a of thefilm 4 to lift and space the oneend 4a from thecontainer 1, as illustrated in FIG. 5(a). Accordingly, thefilm 4 can be securely and readily lifted from thecontainer 1 by the pressurized air via the self expanding and shrinking property of thefilm 4. - The
spherical portion 15 of the guidingmember 14 abuts against atapered shoulder portion 1b of thecontainer 1, and during the transportation of thecontainer 1, thespring 20 urges the guidingmember 14 downwardly such that thespherical portion 15 of the guidingmember 14 slides along a surface of theshoulder portion 1b of thecontainer 1, and thetip portion 14a of the guidingmember 14 is intruded between thefilm 4 and thecontainer 1, as illustrated in FIGS. 4(b) and 5. - The
container 1 are then transported to the next station, in which thefilm 4 is spaced apart from thecontainer 1 by thetip portion 14a of thecontainer 14, forcing against the elastic shrinkage force of thefilm 4, and thefilm 4 subsequently slides along thetip portion 14a of the guidingmember 14 via the relative movement of the guidingmember 14 and thecontainer 1. As the guidingmember 14 guides thefilm 4 to thecutter 21, thecutter 21 entirely cuts thefilm 4 from the oneend 4a of thefilm 4 to the opposite end thereof, since thecutter 21 is moved together with the guidingmember 14, as illustrated in FIGS. 4(c), 5(c) and 5(d). - In the cutting operation of the
film 4, the pressure of the discharged air from theair nozzle 9 is controlled only to such a degree to lift thefilm 4 from thecontainer 1. Therefore, it is unlikely that the pressurized air damages thecontainer 1 made of the synthetic resin. In addition, since thetip portion 14a of the guidingmember 14 slides at itsspherical portion 15 along the surface of thecontainer 1, thetip portion 14a can be securely interposed between thecontainer 1 and thefilm 4, while preventing thespherical portion 15 from damaging the surface of thecontainer 1. - The
film 4 cut by thecutter 21 is then sucked by thevacuum mechanism 22 and is collected at a predetermined position. Even if contents of thecontainer 1 such as a liquid and the like happen to be intruded between thecontainer 1 and thefilm 4, causing thefilm 1 to stick to thecontainer 1, and thevacuum mechanism 22 could not suck thefilm 4 because of such stickiness, thefilm 4 can be securely stripped from thecontainer 1 by discharging the pressurized air and water from thefluid discharging member 29 to thefilm 4, as thecontainer 1 passes through the fluid discharging mechanism 24. Thecontainers 1 with thefilm 4 stripped therefrom are transported to the next process and are collected at a predetermined position. - In this embodiment, to completely remove the
film 4 from thecontainer 1, thevacuum mechanism 22 and the fluid discharging mechanism 24 are employed as the film collecting means. However, it is possible to employ either one mechanism, and position the fluid discharging mechanism 24 upstream of thevacuum mechanism 22. - FIGS. 6 to 10 illustrate the apparatus in accordance with a second embodiment of the present invention. One or
more nozzles 46 are positioned above thecontainer 1 for discharging a pressurized cold or hot water between thefilm 4 and thecontainer 1. With this arrangement, even if the contents such as a juice drink is intruded and is consequently dried between thecontainer 1 and thefilm 4, causing thefilm 4 to stick to thecontainer 1, it is possible to weaken the sticking force of thefilm 4 by the discharged water. - A pair of
belt rotating members 47 are disposed downstream of thenozzle 46, and eachbelt rotating member 47 includes a pair ofpulleys container 1, and anendless rubber belt 50 with a plurality oftransverse protrusions 50b thereon wound around thepulleys belt rotating members 47 gradually become closer to each other towards the downstream side of the transportingmechanism 3, as illustrated in FIG. 7(a), and thebelt rotating members 47 are inclined such that imaginary vertical axes of thebelt rotating members 47, which come across rotational axes of thebelt rotating members 47 at right angles, are directed substantially towards an axial center of thecontainer 1, as illustrated in FIG. 8. Rotatingshafts 52 of thepulleys 49a positioned an upstream side of thebelt rotating members 47 are connected together via auniversal coupling 53, enabling bothbelts 50 to be moved in association with each other. Theendless rubber belts 50 are rotated in such a direction that afilm contacting portion 50a of eachbelt 50 is moved in the same direction as the transporting direction A of thecontainer 1. It is preferable that the rotational speed of theendless rubber belts 50 is set substantially at the same speed as the transporting speed of thecontainer 1. - The guiding
member 14 has substantially a semi-cylindrical body for covering an outer periphery of thecontainer 1, a lower end of which being open to outside. Thetip portion 14a extends from the semi-cylindrical body between theopposite pulleys 49b at a downstream end portion of theendless rubber belts 50, and is provided with thecutter 21 of a triangular shape. This arrangement enables thetip portion 14a to be readily inserted into the space between thefilm 4 and thecontainer 1, and enables thecutter 21 to subsequently and securely cut thefilm 4. After this cutting operation of thefilm 4, the guidingmember 14 advances between thefilm 4 and thecontainer 1 such-that any fragments of thefilm 4 sticked to the surface of thecontainer 1 can be forcibly stripped and removed from thecontainer 1 along an outer surface of the guidingmember 14. In this arrangement, thenozzle 9 is also arranged above thecutter 21 as in the first embodiment. - As illustrated in FIGS. 9 and 10, a film stripping
belt member 55 as a means for stripping thefilm 4 is disposed on either side of the longitudinal path of the transportingmechanism 3, and anair nozzle 56 is positioned on the side opposite to the strippingbelt member 55 with the transportingmechanism 3 therebetween to apply an air pressure to thecontainer 1, thereby moving aflagment 4b of thefilm 4 towards the strippingbelt member 55. The strippingbelt member 55 and the air nozzle make up a means for collecting thefilm 4. The strippingbelt member 55 includes a pair of upper and lowerendless belt members pulleys 54 in such a manner as to be circulated, and which are gradually and downwardly inclined downstream of the transportingmechanism 3. Thelower belt member 59 includes afilm receiving portion 58a which horizontally extends from a slanting portion thereof towards the upstream side of the transportingmechanism 3, and an upper surface of thelower belt memer 59 are positioned substantially at the same height as the axial center of thecontainer 1 to receive thefragment 4b of thefilm 4 thereon. - A collecting
bucket 60 is disposed below the downstream side of the upper andlower belt members film 4 stripped by thebelt members - Operational steps of the apparatus in accordance with the second embodiment will be described hereinbelow.
- The
containers 1 are successively transported in the same manner as that of the first embodiment, and are subsequently subjected to the cooling or hot water discharged from thenozzle 46 under a predetermined pressure. This water is introduced between thecontainer 1 and thefilm 4 to enable thefilm 4 to be readily released from thecontainer 1, even if thefilm 4 sticks to thecontainer 1 via the dried contents of thecontainer 1 therebetween. - The
belt rotating members 47 press thefilm 4 and gradually move thefilm 4 towards a longitudinal center of thecontainer 1 in such a manner as to lift thefilm 4 from the container. A period of time for the processes from the water discharging to the film lifting via thebelt rotating members 47 may be varied to allow the discharged water to intrude between thefilm 4 and thecontainer 1 to weaken the sticking force of thefilm 4 to thecontainer 1. - As the
container 1 is transported downstream, the pressurized air is applied to thefilm 4 which has been lifted by thebelt rotating members 47 to keep thefilm 4 in a spaced relationship with thecontainer 1. Thetip portion 14a of the guidingmember 14 is interposed between thecontainer 1 and thefilm 4, and then thecutter 21 cuts thefilm 4 entirely from the oneend 4a of thefilm 4 to the opposite end thereof. In this step, it is not necessary to dispose theair nozzle 9 in the apparatus, provided that thebelt rotating members 47 can solely lift thefilm 4. - The
flagment 4b of thefilm 4 is then bent and moved onto the receivingportion 58a of the strippingbelt 55, and is transported in this state together with thecontainer 1. Theflagment 4b is then clamped by the upper andlower belt members belt members container 1. Thefilm 1 is thus removed from thecontainer 1 and falls into the collectingbucket 60 for a further treatment. - FIGS. 11 to 16 illustrate the apparatus in accordance with a third embodiment of the present invention. The
container 1, in the form of the PET bottle or the like is provided on its surface with thetubular film 4 as in the first and second embodiments. Thecontainers 1 are horizontally placed on the transportingmechanism 3 such that theports 1a are directed downstream of the transportingmechanism 3. Thecontainer 1 are fitted to the respectivecontainer fixing jigs 2 and are successively transported in the direction of arrow A in a fixed state. Thecutting mechanism 6 has the same arrangement as in the second embodiment. That is, it includes a pair of thebelt rotating members 47 and theair nozzle 9 as the film lifting means, and thecutter 21 as the cutting means. - The
belt rotating members 47 also have the same arrangement as in the second embodiment. That is, eachmember 47 includes a pair of thepulleys endless rubber belt 50 with a plurality of thetransverse protrusions 50b thereon wound around thepulleys member 14 has the semi-cylindrical body, extends at itstip portion 14a between thepulleys 49b at a downstream end portion of theendless belt members 50, and is provided at itstip portion 14a with thecutter 21 of a triangular shape, as in the second embodiment. - The
nozzle 46 is also provided in such a manner as to discharge the pressurized cold or hot water between thefilm 4 and thecontainer 1, as in the second embodiment. - A
film removing mechanism 25 includes rubber mounted upper andlower rollers cutting mechanism 6 and on either side of the longitudinal path of the transportingmechanism 3 to remove thefilm 4, which has been stripped from thecontainer 1, by clamping thefilm 4. An abutment between theupper roller 26 and thelower roller 27 is positioned substantially at the same height as the axial center of thecontainer 1. In this embodiment, thelower roller 27 includes a pair ofrollers mechanism 3, as illustrated in FIGS. 13(a), 13(b) and 14. - The
lower roller 27a is positioned adjacent the transportingmechanism 3 and is connected to amotor 40 via abelt 41. Anotherlower roller 27b is positioned outside of theroller 27, and is associated therewith via theupper roller 26. With this arrangement, the rotational force from themotor 40 is transmitted to theroller 27a to cause theroller 27a to be rotated in the direction of arrow B. Theupper roller 26 and thelower roller 27b are subsequently rotated in the directions indicated by arrows of FIG. 14. - The
lower rollers upper roller 26 to form afilm guiding portion 28 with their upper surfaces to guide thefilm 4 towards the abutment between the upper andlower rollers air nozzle 56, as a film removing means, is disposed on the opposite side to thefilm removing mechanism 25 with the transportingmechanism 3 therebetween to discharge the pressurized air towards thefilm 4 to remove thefilm 4 from thecontainer 1. The collectingbucket 60 is disposed below the downstream side of thefilm removing mechanism 25 to collect thefilm 4 stripped by thefilm removing mechanism 25. Thebucket 60, thefilm removing mechanism 25 and theair nozzle 56 make up a film collecting means. - In operation of the apparatus in accordance with the third embodiment, the
containers 1 are horizontally placed on the transportingmechanism 3 such that theports 1a are directed downstream of the apparatus, and are fixed to the respectivecontainer fixing jigs 2. Thecontainers 1 are successively transported by the transportingmechanism 3 in a fixed state, and are subjected to the water treatment, in which the pressurized water is discharged towards thecontainer 1 from thenozzle 46 to thereby remove the contents of thecontainer 1 which happened to intrude between thefilm 4 and thecontainer 1. The sticking force of thefilm 4 is thus weakened. - The
containers 1 are then transported by the transportingmechanism 3 to thecutting mechanism 6, in which thebelt rotating members 47 presses and gradually move thefilm 4 towards the longitudinal center of thecontainer 1 in such a manner as to lift thefilm 4 from thecontainer 1, as illustrated in FIG. 14. At the same time of lifting thefilm 4, theair nozzle 9 discharges the pressurized air to thefilm 4 to keep thefilm 4 in a spaced relationship with thecontainer 1. - As the
film 4 is transported downstream in a fixed state on the transportingmechanism 3, thetip portion 14a of the guidingmember 14 is interposed between thefilm 4 and thecontainer 1 from the lifted end of thefilm 4, and thecutter 21 subsequently cuts thefilm 4 as in the second embodiment. After cutting thefilm 4, any fragments of thefilm 4 left on thecontainer 1 can be forcibly removed from thecontainer 1 by interposing the guidingmember 14 between thefilm 4 and thecontainer 1. Thefilm 4 is then cut up, and edges of thefilm 4 are forced sidewards. Theflagment 4b of thefilm 4 is thus placed on thefilm guiding portion 28 of thefilm removing mechanism 25. - Referring to FIG. 13(b), the
air nozzle 56 discharges the pressurized air to thecontainer 1 from the side opposite to thefilm removing mechanism 25 with the transportingmechanism 3 therebetween such that theflagment 4b of thefilm 4 is blown towards the guidingportion 28 of thefilm removing mechanism 25, even if thefilm 4 is left on thecontainer 1, after the film stripping operation has been done by the guidingmember 14. - The
film 4 is moved in the transporting direction of thecontainer 1 together with thecontainer 1. Thefilm 4 is guided to the abutment of the upper andlower rollers film 4 is then clamped by these rollers and completely removed from thecontainer 1 by the rotation of the rollers, as indicated by two-dot long and two short dashes lines of FIG. 14. Thefilm 4 removed from thecontainer 1 is then collected by the collectingbucket 60 disposed below thefilm removing mechanism 25. - FIGS. 15 and 16 illustrate a fourth embodiment of the present invention. As in the first embodiment, the apparatus includes the
cutting mechanism 6 for cutting thefilm 4, theair nozzle 9 and the guidingmember 14 as the film lifting means, and thecutter 21 as the cutting means. Theair nozzle 9 is fixed to thepost 12 which, in turn, is fixed to the transportingmechanism 3 such that thenozzle port 10 of theair nozzle 9 is downwardly inclined, as illustrated in FIG. 15. The guidingmember 14 has the same arrangement of that of the first embodiment. That is, the guidingmember 14 is positioned such that thetip portion 14a thereof is directed towards the upstream side of the apparatus. Thetip portion 14a of the guidingmember 14 is bent downwardly, and thespherical portion 15 is integrally formed at thetip portion 14a. The guidingmember 14 is urged downward by thespring 20 such that thespherical portion 15 abuts the surface of thecontainer 1. - The
film removing mechanism 25 has the upper andlower rollers cutting mechanism 6 and on either side of the longitudinal path of the transportingmechanism 3. Avacuum mechanism 57 is disposed below thefilm removing mechanism 25 such that thefilm 4 fed from thefilm removing mechanism 25 is sucked and forwarded to the collectingbucket 60. Theair nozzle 56 is disposed on the opposite side of the transportingmechanism 3 to thefilm removing mechanism 25, as in the third embodiment. Theair nozzle 56 discharges the pressurized air towards thefilm 4 to strip the same which has been cut by thecutting mechanism 6, as illustrated in FIG. 16. - The film removing operation will be carried out in the same manner as the above embodiments. That is, the
containers 1 are fixed to the respectivecontainer fixing jigs 2 such that theports 1a are directed downstream of the transportingmechanism 3. Thecontainers 1 are then transported to thecutting mechanism 6, in which theair nozzle 9 discharges the pressurized air between thecontainer 1 and thefilm 4 to lift the oneend 4a of thefilm 4, as illustrated in FIG. 4(b), and thetip portion 14a of the guidingmember 14 is inserted between the liftedend portion 4a of thefilm 4 and thecontainer 1. - The
containers 1 are further transported by the transportingmechanism 3 such that the relative movement of thecutter 21 and thecontainer 1 enables thefilm 4 to slide along thetip portion 14a of the guidingmember 14. The guidingmember 14 then guides thefilm 4 to thecutter 21 such that thefilm 4 is entirely cut from the oneend 4a of thefilm 4 to the opposite end thereof. - The one
end 4b of thefilm 4, which has been cut by the cuter 21, is moved onto the guidingportion 28 of thefilm removing mechanism 25 by the pressurized air discharged from theair nozzle 56 positioned on the opposite side of the transportingmechanism 3. Thefilm 4 is then clamped and removed from thecontainer 1 by the upper andlower rollers film 4, which has been moved out of the transportingmechanism 3, is sucked and forwarded to the collectingbucket 60 by thevacuum mechanism 57. In this arrangement, it is not necessary to dispose thevacuum mechanism 57 in the apparatus of this embodiment. - In the above embodiments, the
lower rollers 27 of thefilm removing mechanism 25 is formed of a pair of thelower rollers 27, but thelower roller 27 may be formed by one lower roller. In addition, it is not essential to form the guidingportion 28 by the extension of thelower rollers mechanism 3. However, the guidingportion 28 facilitates the guiding of thefilm 4 via the rotation thereof to the abutment of the upper andlower rollers - As illustrated in FIGS. 17(a) and 17(b), the film lifting means may be formed of a
roller 63 with arubber ring 62 thereon, which is rotatably positioned above the longitudinal center of thecontainer 1, in which a rotational axis of theroller 63 extends in a direction transverse to the transporting direction A of thecontainer 1. Theroller 63 is rotated in the reverse direction to the transporting direction A of thecontainer 1, as indicated by the arrow of FIG. 17(a), such that therubber ring 62 lifts the oneend 4a of thefilm 4 via friction between therubber ring 62 and thefilm 4, when pressing theend 4a of thefilm 4. - The film lifting means may be formed of a pair of
rollers 63 which are disposed above thecontainer 1 at positions corresponding to both sides of the container with the longitudinal center of thecontainer 1 therebetween, as illustrated in FIG. 17(c). - Further, the film lifting means may be formed of a pair of clamping
arms 65, both upper ends of which are pivotally connected together via apivot 66, as illustrated in FIGS. 18(a) and 18(b). The clampingarms 65 are driven by a cylinder or an electric motor (not shown) to clamp and lift thefilm 4 from thecontainer 1. - Further, the guiding
member 14 is provided along its longitudinal axis with an upwardly facinglongitudinal groove 35, and arotary cutter 36 is pivotally fixed to astay 37 such that a lower portion of therotary cutter 36 is inserted into and moved along thegroove 35, as illustrated in FIGS. 19(a) and 19(b). With this arrangement, thefilm 4 is cut by therotary cutter 36, as therotary cutter 36 is rotated via the relative movement of thefilm 4 and the guidingmember 14. However, therotary cutter 36 may be driven by a conventional driving means such as a motor. - Further, a
laser radiating mechanism 39, as the film cutting means, may be disposed above the guidingmember 14, as illustrated in FIG. 19(c). With this arrangement, thefilm 4 can be cut by a laser radiated from thelaser radiating mechanism 39 without damaging thecontainer 1. In this arrangement, a control unit may be provided to control theair nozzle 9 and thelaser radiating mechanism 39 in such a manner as to stop the air dischaging by the theair nozzle 9 at the time of the laser radiation by thelaser radiating mechanism 39, or vice versa. - The guiding
member 14 may be varied in shape, as illustrated in FIGS. 20(a), 20(b) and 20(c). The guidingmember 14 has a cylindrical body, anopen end 41, into which thecontainer 1 is insertable, and thetip portion 14a protruding from thecylindrical body 14. Thecutter 21 of a triangular shape is disposed at thetip portion 14a. Apusher 44 is provided in such a manner as to push acontainer bottom 1c. With this arrangement, thepusher 44 first pushes thecontainer 1, as theair nozzle 9 discharges the pressurized air to lift thefilm 4 from thecontainer 1. Thetip portion 14a of the guidingmember 14 is then interposed between thefilm 4 and thecontainer 1 to enable thecutter 21 to cut thefilm 4 from the lifted portion of thefilm 4. Since the guidingmember 14 is interposed between thecontainer 1 and an entire area of thefilm 4, thefilm 4 can be forcibly and securely removed from thecontainer 1. This arrangemet can omit thevacuum mechanism 22 and the fluid discharging mechanism 24. - In the above embodiments, the guiding
member 14 abuts and slides along thecontainer 1. However, the guidingmember 14 may be spaced apart therefrom. This arrangement also enables thefilm 4 to be stripped from thecontainer 1 via the relative movement of thecontainer 1 and thecutting mechanism 6. - The relative movement of the
container 1 and thecutting mechanism 6 may be made by moving thecutting mechanism 6 only, while fixing thecontainer 1 in position, or vice versa. Instead, bothcontainer 1 andcutting mechanism 6 may be simultaneously moved. - Further, the
container 1 may be vertically placed during the film removing operation, as illustrated in FIGS. 21(a), 21(b) and 21(c). In this arrangement, thecutting mechanism 6 is vertically moved along the surface of thecontainer 1. Thecutting mechanism 6 includes a semi-cylindrical guidingmember 14, theair nozzle 9 and a pair ofbelt rotating members 61. Each of thebelt rotating members 61 includes a pair ofroller members 62 mounted to a side of the guidingmember 14 and rotatable aboutrotational axes 62a thereof, and tworotating belts 63 wound around theroller members 62. Thebelt rotating members 61 is thus movable together with the guidingmember 14. Theair nozzle 9 is provided in such a manner as to discharge the pressurized air from an upper portion of thecontainer 1 to the lower portion thereof. - The
film 4 is released from thecontainer 4 via the pressurized air from thenozzle 9, and the guidingmember 14 is inserted between thefilm 4 and thecontainer 1. Therotating belts 63 presses thefilm 4 towards thecontainer 1 to prevent thefilm 4 from moving when the pressurized air is applied thereto to ensure the cutting operation of thefilm 4. Theroller members 62 then are rotated about therotational axes 62a along thefilm 4 by the downward movement of the guidingmember 14. - In this arrangement, since the
container 1 is vertically placed, thefilm 4 is likely to slip downwardly via the downwardly applied pressurized air from thenozzle 9, which may hesitate the smooth cutting of thefilm 4. However, the rotatingbelts 63 secure the cutting operation by pressing thefilm 4 towards thecontainer 1. - Further, it is not essential to limit the shape of the
container 1 to the above embodiments. In addition, it is not necessary to limit the fluid for removing thefilm 4 from thecontainer 1 to air. Other gasses, or liquid such as water may be discharged from the nozzle. - This specification is by no means intended to restrict the present invention to the preferred embodiments set forth therein. Various modifications to the the method and apparatus for removing the film from the container of the present invention, as described herein, may be made by those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (13)
- A method for removing a tubular film (4) from a container (1) which comprises the steps of;
lifting said film (4) at one end thereof from said container (1) via a film lifting means, said film (4) having a self expanding and shrinking property;
interposing a guiding member (14) between the film (4) and the container (1) from said lifted one end of the film (4);
moving said guiding member (14) relative to the container (1) in an axial direction of the container (1) in such a manner as to space the film (4) from the container (1); and
cutting the film (4) entirely from said one end to the opposite end of the film (4) by a cutting means via the relative movement of the guiding member (14) and the container (1). - A method as set forth in claim 1, wherein said film lifting means is a means for discharging a pressurized fluid between said container (1) and said one end of the film (4).
- A method as set forth in any one of claims 1 and 2, comprising the additional steps of:
clamping said film (4), which has been cut by said cutting means, by a plurality of rollers (26, 27); and
removing said film (4) from said container (1) by rotating said rollers (26, 27). - An apparatus for removing a tubular film (4) from a container (1) comprising:
means for lifting the film (4) at one end thereof from the container (1), said film (4) having a self expanding and shrinking property;
a guiding member (14) for being interposed between the film (4) and the container (1) from said lifted one end of the film (4), said guiding member (14) movable relative to the container (1) along an axial direction of the container (1) in such a manner as to space the film (4) from the container (1); and
means for cutting the film (4) entirely from said one end of the film (4) to the opposite end thereof via the relative movement of the guiding member (14) and the container (1). - An apparatus as set forth in claim 4, further comprising means for collecting the film (4) cut from the container (1).
- An apparatus as set forth in claim 5, wherein said film collecting means comprises a plurality of rollers (26, 27) positioned in such a manner as to clamp the film (4) cut by the cutting means, and means for removing the film (4), which is clamped by said rollers (26, 27), from the container (1) by rotating the rollers (26, 27).
- An apparatus as set forth in claim 5, wherein said film collecting means comprises a film stripping belt member (55) positioned in such a manner as to receive the film (4) cut by the cutting means thereon and remove the film (4) from the container (1) by transporting the film (4) along said film stripping belt member (55).
- An apparatus as set forth in claim 4, wherein said film lifting means comprises a nozzle (9) for discharging a pressurized fluid between said container (1) and said film (4).
- An apparatus as set forth in claim 4, wherein said film lifting means comprises a pair of belt rotating members (47, 47) positioned in such a manner as to become closer to one another towards a downstream side in a transporting direction of the container (1), said belt rotating members (47, 47) respectively having belts (50, 50) which are rotatable, while pressing the film (4).
- An apparatus as set forth in claim 4, wherein said film lifting means comprises a nozzle (9) for discharging a pressurized fluid between the container (1) and the film (4), and a pair of belt rotating members (47, 47) positioned in such a manner as to become closer to one another towards a downstream side in a transporting direction of the container (1), said belt rotating members (47, 47) respectively having belts (50, 50) which are rotatable, while pressing the film (4).
- An apparatus as set forth in claim 4, wherein said cutting means comprises a cutter (21) positioned on an upper surface of the guiding member (14).
- An apparatus as set forth in claim 4, wherein said cutting means comprises a rotary cutter (36), a part of which being insertable into a groove (35) provided in an upper surface of the guiding member (14).
- An apparatus as set forth in claim 4, wherein said cutting means comprises a laser radiating means (39) positioned above the guiding member (14) for radiating laser towards the film (4).
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19978194 | 1994-08-24 | ||
JP199781/94 | 1994-08-24 | ||
JP32774494A JPH08112577A (en) | 1994-08-24 | 1994-12-28 | Method for removing film fitted in container and device therefor |
JP327744/94 | 1994-12-28 | ||
JP19147395A JPH0939927A (en) | 1995-07-27 | 1995-07-27 | Method and device for removing film fitted on container |
JP191473/95 | 1995-07-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0698424A1 true EP0698424A1 (en) | 1996-02-28 |
Family
ID=27326486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95250203A Withdrawn EP0698424A1 (en) | 1994-08-24 | 1995-08-18 | Method and apparatus for removing a film from a container |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0698424A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998004367A1 (en) * | 1996-07-30 | 1998-02-05 | Krones Aktiengesellschaft Hermann Kronseder Maschinenfabrik | Machine for removing wrap-around labels or shrink-wraps from bottles or similar devices |
DE102004005854B3 (en) * | 2004-02-05 | 2005-03-10 | Erwin Berger | Removal of a protective film from a workpiece or material comprises holding the workpiece so the film is at the top, rubbing a soft plastic over the workpiece and lifting the edge |
DE102006019745A1 (en) * | 2006-04-28 | 2007-10-31 | Elektro-Maschinen Und Apparatebau Rink Gmbh | Device for removal of foil shrunk on container, has transport device for container and trimming device slashed off shrunk on foil on container and lifting device removes shrunk on foil from container |
US8282754B2 (en) | 2007-04-05 | 2012-10-09 | Avery Dennison Corporation | Pressure sensitive shrink label |
US8535464B2 (en) | 2007-04-05 | 2013-09-17 | Avery Dennison Corporation | Pressure sensitive shrink label |
EP2119634A3 (en) * | 2008-05-16 | 2013-11-06 | Siemens Industry, Inc. | Bundle unwrapping machine |
DE102012108368A1 (en) * | 2012-09-07 | 2014-03-13 | Berning Maschinenfabrik Gmbh | Method for removal of label e.g. paper label shrunk around product packaging e.g. polyethylene terephthalate drink bottle, involves enabling single or multiple splitting of label by using laser beam to remove label from packaging |
US9221573B2 (en) | 2010-01-28 | 2015-12-29 | Avery Dennison Corporation | Label applicator belt system |
US9352366B2 (en) | 2013-11-22 | 2016-05-31 | Susumu Yamada | Plastic bottle processing apparatus and vehicle having same mounted thereon |
CN106733970A (en) * | 2016-12-25 | 2017-05-31 | 重庆市永川区汇锦塑料厂 | A kind of label method for cleaning of plastic bottle |
CN106862213A (en) * | 2017-04-01 | 2017-06-20 | 四川唯怡饮料食品有限公司 | One kind reclaims vial and recycles the de- device for mark of waste and old labeling removing operation |
CN107838142A (en) * | 2017-09-15 | 2018-03-27 | 安徽省力天新材料股份有限公司 | A kind of de- mark handling process of liquid detergent bottle surface |
CN108723032A (en) * | 2018-07-10 | 2018-11-02 | 佛山市顺德区鹏麒机械科技有限公司 | Ink barrel cleaner |
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Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998004367A1 (en) * | 1996-07-30 | 1998-02-05 | Krones Aktiengesellschaft Hermann Kronseder Maschinenfabrik | Machine for removing wrap-around labels or shrink-wraps from bottles or similar devices |
US6199615B1 (en) | 1996-07-30 | 2001-03-13 | Krones Ag | Machine for removing wrap-around labels or shrink-wraps from bottles or similar devices |
DE102004005854B3 (en) * | 2004-02-05 | 2005-03-10 | Erwin Berger | Removal of a protective film from a workpiece or material comprises holding the workpiece so the film is at the top, rubbing a soft plastic over the workpiece and lifting the edge |
DE102006019745A1 (en) * | 2006-04-28 | 2007-10-31 | Elektro-Maschinen Und Apparatebau Rink Gmbh | Device for removal of foil shrunk on container, has transport device for container and trimming device slashed off shrunk on foil on container and lifting device removes shrunk on foil from container |
US8282754B2 (en) | 2007-04-05 | 2012-10-09 | Avery Dennison Corporation | Pressure sensitive shrink label |
US8535464B2 (en) | 2007-04-05 | 2013-09-17 | Avery Dennison Corporation | Pressure sensitive shrink label |
EP2119634A3 (en) * | 2008-05-16 | 2013-11-06 | Siemens Industry, Inc. | Bundle unwrapping machine |
US9272804B2 (en) | 2008-05-16 | 2016-03-01 | Siemens Industry, Inc. | Bundle unwrapping machine |
US9221573B2 (en) | 2010-01-28 | 2015-12-29 | Avery Dennison Corporation | Label applicator belt system |
US9637264B2 (en) | 2010-01-28 | 2017-05-02 | Avery Dennison Corporation | Label applicator belt system |
DE102012108368A1 (en) * | 2012-09-07 | 2014-03-13 | Berning Maschinenfabrik Gmbh | Method for removal of label e.g. paper label shrunk around product packaging e.g. polyethylene terephthalate drink bottle, involves enabling single or multiple splitting of label by using laser beam to remove label from packaging |
US9352366B2 (en) | 2013-11-22 | 2016-05-31 | Susumu Yamada | Plastic bottle processing apparatus and vehicle having same mounted thereon |
CN106733970A (en) * | 2016-12-25 | 2017-05-31 | 重庆市永川区汇锦塑料厂 | A kind of label method for cleaning of plastic bottle |
CN106733970B (en) * | 2016-12-25 | 2018-10-19 | 重庆市永川区汇锦塑料厂 | A kind of label method for cleaning of plastic bottle |
CN106862213A (en) * | 2017-04-01 | 2017-06-20 | 四川唯怡饮料食品有限公司 | One kind reclaims vial and recycles the de- device for mark of waste and old labeling removing operation |
CN106862213B (en) * | 2017-04-01 | 2023-04-18 | 四川唯怡饮料食品有限公司 | Label removing device for waste label removing operation of recycling glass bottles |
CN107838142A (en) * | 2017-09-15 | 2018-03-27 | 安徽省力天新材料股份有限公司 | A kind of de- mark handling process of liquid detergent bottle surface |
CN108723032A (en) * | 2018-07-10 | 2018-11-02 | 佛山市顺德区鹏麒机械科技有限公司 | Ink barrel cleaner |
CN108723032B (en) * | 2018-07-10 | 2023-07-21 | 佛山市顺德区鹏麒机械科技有限公司 | Printing ink barrel cleaning machine |
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