EP2762409A1 - Machine for wrapping products with plastic film - Google Patents
Machine for wrapping products with plastic film Download PDFInfo
- Publication number
- EP2762409A1 EP2762409A1 EP14000277.5A EP14000277A EP2762409A1 EP 2762409 A1 EP2762409 A1 EP 2762409A1 EP 14000277 A EP14000277 A EP 14000277A EP 2762409 A1 EP2762409 A1 EP 2762409A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stack
- presser
- platform
- upright
- sheet
- 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- Withdrawn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
- 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
- B65B11/04—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated
- B65B11/045—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated by rotating platforms supporting the articles
-
- 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
- B65B11/58—Applying two or more wrappers, e.g. in succession
- B65B11/585—Applying two or more wrappers, e.g. in succession to stacked articles, e.g. pallettised loads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
A wrapping machine, for wrapping with plastic film (2) products arranged in a stack (3) on a stand (4), comprising a rotary platform (5), rotatable round a vertical axis (5a); a fixed supporting structure (6), comprising at least a vertical upright (7) next to the platform (5); a horizontal arm (8), supported by the upright (7), cantilever-style above the platform (5); and a presser (9), also supported by the horizontal arm (8), freely rotatable round a vertical axis (9a) of rotation, and movable between a first, operating position in which, associated with the stack (3), it helps to keep the products in the stack neat, and a second, non-operating position in which said presser (9) is distant from the stack (3). A sheet extender device (10) is integrated in the vertical structure (6) and is supported by it on the same side relative to the platform (5), for placing a sheet of plastic film (2) between the top of the stack (3) and the presser (9).
Description
- This invention relates to the packaging sector and in particular relates to a wrapping machine for collective, group packaging of products stacked on a stand, by wrapping with plastic film.
- For the collective packaging of a plurality of products arranged in a stack on a stand, special wrapping machines are widely used, an example of them described and illustrated in document
GB 2192853 - The plastic film for wrapping is supported by a reel sustained by a carriage which is motor-driven and movable in a guide along the vertical upright. While the platform rotates, a strip of film is unwound from the reel and, being simultaneously wound around the stack, creates a spiral due to the composition of the translating motion of the carriage and the rotating motion of the platform.
- When the machine is designed to produce sealed packaging, or in any case able to protect the packaged products from dust, the wrapping of the products is obtained by producing two spirals: one ascending (which is formed for example during the carriage upstroke) and one descending (which is formed for example during the downstroke), as well as covering of the top of the stack by placing a sheet of polyethylene over it which, released after production of the ascending spiral, is then engaged and stabilised by the descending spiral which is superposed on it.
- For positioning the polyethylene sheet, sheet extender devices are used which comprise a suitable reel of film and are equipped with mechanical actuators which: unwind the film, move it into position and cut it suitably synchronised with the steps of wrapping of the stack by the wrapping film. Such sheet extender devices usually have their own structure, independent of the structure of the wrapping machine, which in the overall configuration of the machine is located in a position diametrically opposed to that of the upright or uprights of the wrapping machine.
- Such a configuration is the basic case of several disadvantages. The first of these entails-relative to a wrapping machine for producing traditional packaging without being sealed against water or dust - a significant increase in the overall dimensions of the machine structure.
- A second disadvantage is that of requiring the presence of additional units for positioning at a predetermined height the actuators for unwinding and for depositing the sheet of packaging material on top of the stack. Disadvantageously, this involves: machine structural complexity, a parallel increase in machine costs; and also a cycle time needed for packaging each stack which is relatively long, since it disadvantageously includes significant unproductive times due to positioning of the sheet extender device at a predetermined height.
- The aim of this invention is to overcome such disadvantages with a solution whose characteristics in accordance with the above-mentioned aims are clearly described in the claims below.
- Said technical characteristics, together with the advantages of the invention are more apparent in the detailed description which follows, with reference to the accompanying drawings which illustrate an example, non-limiting embodiment of the invention, in which:
-
Figure 1 is an axonometric assembly view of a wrapping machine in accordance with the invention; -
Figure 2 is an elevation view of the machine ofFigure 1 ; -
Figures 3 to 8 are schematic views of an operating sequence of the wrapping machine. - With reference to the accompanying drawings, in
Figure 1 thenumeral 1 denotes a wrapping machine, designed for wrapping with plastic film 2 - in the form of collective packaging, which is sealed - a plurality of products arranged in avertical stack 3 on astand 4. - The
machine 1 basically comprises [Figure 1 ]: a platform labelled 5; a fixed supporting structure labelled 6; and an arm 8 supported by thefixed structure 6. - More particularly [
Figure 2 ], theplatform 5 comprises a horizontal table, rotatable round a vertical axis 5a, and driven to rotate by the operation of suitably controlled drive means, labelled 15. - The fixed supporting
structure 6 preferably comprises a single vertical upright 7, next to theplatform 5, which supports the arm 8 horizontally, cantilever-style and above theplatform 5. - The arm 8 in turn sustains a
presser 9 which is freely rotatable round its own vertical axis 9a of rotation, coinciding with the axis 5a of rotation of theplatform 5. Thepresser 9 can also translate longitudinally relative to said axis 9a, when subjected to suitable operating commands, between a first, forward limit operating position [Figure 4 ], and a fully retracted non-operating position [Figure 3 ]. - To carry out packaging, the
stack 3 of products is placed on top of theplatform 5 and made to rotate round the vertical axis 5a, whilst thepresser 9 is brought into its forward operating position and is placed in contact with the top of thestack 3. Acting on thestack 3, thepresser 9 presses the stack into contact with theplatform 5, thereby helping to stabilise the products and keep them in a neat condition, preventing thestack 3 from losing its shape during packaging. - More particularly, observing
Figure 1 , andFigures 3 to 8 , it may be noticed that themachine 1 comprises acarriage 16 supporting areel 17 ofplastic film 2. Thecarriage 16 is constrained to the upright 7 and is motor-driven in such a way as to translate along the upright 7, in both directions along the vertical axis "Z", whilst thefilm 2 previously coupled to thestand 4 is unwound by the rotation of theplatform 5 and is simultaneously rewound around thestack 3. - As a result of the composition of the vertical translating motion of the
carriage 16 and the simultaneous rotation of theplatform 5, in the horizontal plane in which it lies, as thefilm 2 is gradually unwound from thereel 17 and rewound around thestack 3, a surrounding and containing wrapping is produced around thestack 3 which retains the products and keeps them fixed together as one. - The
machine 1 also comprises asheet extender device 10 for placing asheet 18 ofplastic film 2 between the top of thestack 3 and thepresser 9 for sealed wrapping (for example, sealed against water and/or dust), as explained in more detail below. - As is clearly shown in the accompanying drawings, the
sheet extender device 10 is structurally integrated in thevertical structure 6 of themachine 1 and is supported, cantilever-style by thestructure 6, or projecting horizontally, on one side, from the related upright 7. In other words, thesheet extender device 10 and the upright 7, that is to say, thefixed structure 6 which sustains it, are both on the same side relative to theplatform 5. - The
sheet extender device 10 is therefore supported fixed to the horizontal arm 8 and is movable with the latter relative to the upright 7, as well as parallel with itself, in the two directions of the vertical axis "Z". - As the Figures clearly show, the
sheet extender device 10 requires the presence of asecond reel 19 ofplastic film 2 and of actuator means 11 which move alternately along the arm 8, substantially along the horizontal axis "Y" and by means of suitable supporting and guiding means 12 on the arm 8. - The
actuators 11 of thesheet extender device 10, moving along the arm 8 and synchronised with the movement of thepresser 9 between the forward and retracted positions, unwind a stretch ofplastic film 2 from thereel 19, and by pulling it convey it beyond the top of thestack 3. Subsequent activation of cutting means associated with the sheet extender device 10 (being of the conventional type and therefore not illustrated in the drawings), allows cutting of the stretch offilm 2 unwound from thereel 19 and allows asheet 18 to be obtained from it which is released over and covering the top of thestack 3, as schematically illustrated inFigure 6 . - In use, operation of the
wrapping machine 1 can easily be described by observing an example of a possible operating sequence schematically illustrated inFigures 3 to 8 . -
Figure 3 shows how starting from an initial condition in which: thestack 3 and therelated stand 4 are positioned on theplatform 5; and after [Figure 4 ] thepresser 9 has been associated with thestack 3 in the operating position and an edge offilm 2 from thereel 17 has been coupled to thestand 4; starting rotation of theplatform 5 and the simultaneous upstroke of thecarriage 16 along the upright 7, a first, ascending, spiral wrapping band is produced around thestack 3. - Then [
Figures 5, 6 and7 ], having stopped the rotation of theplatform 5 and stopped the upstroke of thecarriage 16, and after thepresser 9 has been brought to its retracted non-operating position, the actuator means 11, located next to thereel 19, or in the position closest to the upright 7, clamp an edge of thefilm 2 of thereel 19 and as they move away from the upright 7, unwind a stretch of it in such a way as to convey it between the top of thestack 3 and thepresser 9 until it is beyond thestack 3. - Subsequent activation of the
film 2 cutting means, on one side of thestack 3; and the release of thefilm 2 by theactuators 11, on the other side of thestack 3, cause the formation of asheet 18 which is released to cover the top of thestack 3. After the return of the actuators 11 [Figure 8 ] close to the upright 7 and after the return of thepresser 9 to the operating position, by restarting the drive unit of theplatform 5 and commanding thecarriage 16 downstroke towards the base of the upright, wrapping is continued, with wrapping of thestack 3 and thesheet 18 placed on top of it and with the formation of a second, descending spiral, superposed on the spiral formed during the upstroke of thecarriage 16, which clamping and stabilising the interposedsheet 18, completes production of the packaging in the form of a sealed wrapper (sealed against water or dust) formed by theplastic film 2. - At the end of the
carriage 16 downstroke, after removal of the packagedstack 3 and its substitution with anew stack 3 of products to be packaged, the sequence is repeated starting fromFigure 3 and using the same methods described. - The invention described above is susceptible of industrial application and may be modified and adapted in several ways without thereby departing from the scope of the inventive concept. Moreover, all details of the invention may be substituted by technically equivalent elements.
Claims (3)
- A wrapping machine, for wrapping with plastic film (2) products arranged in a stack (3) on a stand (4), comprising- a rotary platform (5), rotatable round a vertical axis (5a), for supporting the stand (4);- a fixed supporting structure (6), comprising at least a vertical upright (7) next to platform (5);- a horizontal arm (8), supported by the upright (7), cantilever-style above the platform (5);- a presser (9) freely rotatable round its own vertical axis of rotation (9a), and movable between a first, operating position in which the presser (9), associated with the top of the stack (3), keeps the stack (3) neat with the aid of the platform (5), and a second, non-operating position in which the presser (9) is distant from the stack (3);- a sheet extender device (10); for placing a sheet of plastic film (2) between the top of the stack (3) and said presser (9); the machine (1) being characterised in that said sheet extender device (10) is integrated in the vertical structure (6), is supported by said structure (6) on the same side relative to the platform (5) and is supported by the arm (8) together with the presser (9), the sheet extender device (10) and the presser (9) being movable relative to said at least one upright (7) jointly with one another and fixed to said arm (10).
- The machine according to claim 1, characterised in that the horizontal arm (8) comprises supporting and guiding means (12) for actuators (11) of the sheet extender device (10) which, moving along the arm (8), synchronised with the movement of the presser (9), unwind a plastic film (2) from a reel, convey it and release it over the top of the stack (3).
- The machine according to any one of the preceding claims, characterised in that the fixed structure (6) comprises a single upright (7).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000004A ITRN20130004A1 (en) | 2013-01-30 | 2013-01-30 | WRAPPING MACHINE OF PRODUCTS WITH PLASTIC FILM |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2762409A1 true EP2762409A1 (en) | 2014-08-06 |
Family
ID=48014215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14000277.5A Withdrawn EP2762409A1 (en) | 2013-01-30 | 2014-01-27 | Machine for wrapping products with plastic film |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2762409A1 (en) |
IT (1) | ITRN20130004A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106927075A (en) * | 2017-02-20 | 2017-07-07 | 滁州昭阳电信通讯设备科技有限公司 | A kind of automatic wrapping device of the barbed fruit of shell |
CN107031885A (en) * | 2017-05-26 | 2017-08-11 | 华中科技大学 | A kind of Full-automatic tray goods thin film winding machine |
CN107628318A (en) * | 2017-09-30 | 2018-01-26 | 绍兴上虞威拓机械电子有限公司 | A kind of product packaging Automated condtrol rotating device |
IT201600080784A1 (en) * | 2016-08-01 | 2018-02-01 | Atlanta Stretch S P A | EQUIPMENT FOR THE WINDING OF PRODUCTS WITH A FILM OF EXTENSIBLE MATERIAL |
CN109319186A (en) * | 2018-09-21 | 2019-02-12 | 尹崇海 | A kind of plastic pipe protective film winding-packing machine |
CN110979845A (en) * | 2020-02-14 | 2020-04-10 | 福清市茂顺包装有限公司 | A sticky tape coiler for packing express delivery case |
CN111284767A (en) * | 2020-03-11 | 2020-06-16 | 张文 | Twisting type packaging machine capable of automatically removing air in packaging bag |
IT201900003057A1 (en) * | 2019-03-01 | 2020-09-01 | Robopac Spa | Covering apparatus for wrapping machine |
CN112389704A (en) * | 2020-12-11 | 2021-02-23 | 刘超超 | Winding membrane packing apparatus convenient to use |
CN112706996A (en) * | 2020-12-23 | 2021-04-27 | 江苏方时远略科技咨询有限公司 | Jacking type pre-stretching winding packaging machine and working method thereof |
WO2021181005A1 (en) * | 2020-03-09 | 2021-09-16 | Adara Pakkaus Oy | A method for producing a packing material arrangement, an apparatus for producing a packing material arrangement and a packing material arrangement |
CN116674797A (en) * | 2023-06-08 | 2023-09-01 | 武汉东进包装有限公司 | Automatic glue winding machine for producing foam products |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2192853A (en) * | 1986-07-24 | 1988-01-27 | Inpropack S L | Pallet wrapping apparatus |
US5048261A (en) * | 1989-09-14 | 1991-09-17 | Lantech, Inc. | Top sheet dispenser for a stretch wrapping apparatus |
US5564254A (en) * | 1990-11-09 | 1996-10-15 | Newtec International, S.A. | Method, a machine and an installation for packaging a load provided with at least one edge-protecting angle strip; apparatus for grasping, displacing, depositioning and holding such an angle strip |
DE29921296U1 (en) * | 1999-12-03 | 2000-05-04 | Scheich Dieter | Cover sheet feeder for film winding machine |
-
2013
- 2013-01-30 IT IT000004A patent/ITRN20130004A1/en unknown
-
2014
- 2014-01-27 EP EP14000277.5A patent/EP2762409A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2192853A (en) * | 1986-07-24 | 1988-01-27 | Inpropack S L | Pallet wrapping apparatus |
US5048261A (en) * | 1989-09-14 | 1991-09-17 | Lantech, Inc. | Top sheet dispenser for a stretch wrapping apparatus |
US5564254A (en) * | 1990-11-09 | 1996-10-15 | Newtec International, S.A. | Method, a machine and an installation for packaging a load provided with at least one edge-protecting angle strip; apparatus for grasping, displacing, depositioning and holding such an angle strip |
DE29921296U1 (en) * | 1999-12-03 | 2000-05-04 | Scheich Dieter | Cover sheet feeder for film winding machine |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201600080784A1 (en) * | 2016-08-01 | 2018-02-01 | Atlanta Stretch S P A | EQUIPMENT FOR THE WINDING OF PRODUCTS WITH A FILM OF EXTENSIBLE MATERIAL |
CN106927075A (en) * | 2017-02-20 | 2017-07-07 | 滁州昭阳电信通讯设备科技有限公司 | A kind of automatic wrapping device of the barbed fruit of shell |
CN107031885A (en) * | 2017-05-26 | 2017-08-11 | 华中科技大学 | A kind of Full-automatic tray goods thin film winding machine |
CN107031885B (en) * | 2017-05-26 | 2020-02-14 | 华中科技大学 | Full-automatic tray goods film coiler |
CN107628318A (en) * | 2017-09-30 | 2018-01-26 | 绍兴上虞威拓机械电子有限公司 | A kind of product packaging Automated condtrol rotating device |
CN109319186A (en) * | 2018-09-21 | 2019-02-12 | 尹崇海 | A kind of plastic pipe protective film winding-packing machine |
IT201900003057A1 (en) * | 2019-03-01 | 2020-09-01 | Robopac Spa | Covering apparatus for wrapping machine |
CN110979845A (en) * | 2020-02-14 | 2020-04-10 | 福清市茂顺包装有限公司 | A sticky tape coiler for packing express delivery case |
WO2021181005A1 (en) * | 2020-03-09 | 2021-09-16 | Adara Pakkaus Oy | A method for producing a packing material arrangement, an apparatus for producing a packing material arrangement and a packing material arrangement |
CN111284767A (en) * | 2020-03-11 | 2020-06-16 | 张文 | Twisting type packaging machine capable of automatically removing air in packaging bag |
CN111284767B (en) * | 2020-03-11 | 2021-06-15 | 张文 | Twisting type packaging machine capable of automatically removing air in packaging bag |
CN112389704A (en) * | 2020-12-11 | 2021-02-23 | 刘超超 | Winding membrane packing apparatus convenient to use |
CN112706996A (en) * | 2020-12-23 | 2021-04-27 | 江苏方时远略科技咨询有限公司 | Jacking type pre-stretching winding packaging machine and working method thereof |
CN116674797A (en) * | 2023-06-08 | 2023-09-01 | 武汉东进包装有限公司 | Automatic glue winding machine for producing foam products |
CN116674797B (en) * | 2023-06-08 | 2024-03-01 | 武汉东进包装有限公司 | Automatic glue winding machine for producing foam products |
Also Published As
Publication number | Publication date |
---|---|
ITRN20130004A1 (en) | 2014-07-31 |
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