EP1092627A2 - Vorrichtung zum Umwickeln mit Dehnfolie - Google Patents

Vorrichtung zum Umwickeln mit Dehnfolie Download PDF

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Publication number
EP1092627A2
EP1092627A2 EP00850160A EP00850160A EP1092627A2 EP 1092627 A2 EP1092627 A2 EP 1092627A2 EP 00850160 A EP00850160 A EP 00850160A EP 00850160 A EP00850160 A EP 00850160A EP 1092627 A2 EP1092627 A2 EP 1092627A2
Authority
EP
European Patent Office
Prior art keywords
elements
wrapping machine
stretch wrapping
base unit
machine according
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Withdrawn
Application number
EP00850160A
Other languages
English (en)
French (fr)
Other versions
EP1092627A3 (de
Inventor
Göran Lindström
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fromm Holding AG
Original Assignee
Fromm Holding AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fromm Holding AG filed Critical Fromm Holding AG
Publication of EP1092627A2 publication Critical patent/EP1092627A2/de
Publication of EP1092627A3 publication Critical patent/EP1092627A3/de
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention relates to a stretch wrapping machine comprising a base unit that in active position of the machine is intended to rest upon a foundation, a rotatable turntable arranged upon the base unit, a mast arranged upon the base unit, said mast supporting a carriage displaceable along the mast, said carriage in its turn supporting a stretch film unit.
  • the base unit of stretch wrapping machines is normally designed in such a way that it comprises two square tubes extending in the longitudinal direction of the stretch wrapping machine, said base unit having a certain height.
  • the height of the base unit should be as small as possible since the goods that is to be wrapped by a stretch film normally is pushed on to the turntable via a ramp, i.e. in principle a gradient plane that constitutes an accessory to stretch wrapping machines of the type in question.
  • a ramp i.e. in principle a gradient plane that constitutes an accessory to stretch wrapping machines of the type in question.
  • said base unit must also posess a considerable rigidity since on one hand the mast of stretch wrapping machines of the type in question are subjected to considerable loads in connection with handling of the stretch film and on the other hand stretch wrapping machines of the type in question are often transported by means of fork lift trucks, the forks being inserted in the square tubes.
  • the requirement regarding rigidity and accessibility for the forks brings about that the square tubes must have a certain height, thus the requirement regarding the sufficient rigidity and the requirement regarding a low height of the base unit are contradictory.
  • the final structural solution must meet both these requirements in the best way.
  • a primary object of the present invention is to define a stretch wrapping machine of the type defined above where the base unit has been given as low height as possible.
  • a further object of the present invention is that the base unit should have a sufficient rigidity in order to on one hand handle the floating of the mast of the stretch wrapping machine and on the other hand it should be possible to transport the stretch wrapping machine by means of a fork lift truck.
  • Still an object of the present invention is that the base unit of the stretch wrapping machine should be structurally simple.
  • the stretch wrapping machine shown in figures 1 and 2, comprises a base unit 1 that in operative position of the machine is intended to rest upon a foundation, a turntable 3 arranged upon the base unit 1, a mast 5 arranged upon the base unit 1, said mast 5 supporting a carriage 7 displacable along the mast 5, said carriage 7 in its turn supporting a stretch film unit 9.
  • the mast 5, the carriage 7 and the stretch film unit 9 are not described more in detail since they do not constitute any essential parts of the present invention.
  • the stretch wrapping machine is shown in a position for transport, i.e. the mast 5 is lowered and extends parallel to the base unit 1 while in figure 2 the stretch wrapping machine is shown in operative position, i.e. the mast 5 extends substantially perpendicular to the base unit 1.
  • the base unit 1 is shown in top view in figure 3, i.e. the turntable 3 and the mast 5 are omitted for reasons of clarity.
  • Said base unit 1 comprises a number of square tubes 10, 11, 12, 13, 14, in the disclosed embodiment five, that are essentially parallel to each other and run in the longitudinal direction of the stretch wrapping machine, said square tubes being shown in cross section in figure 4.
  • the square tubes 10-14 have a varying length, this being the consequence of different structural considerations.
  • a first transverse square tube 8 extends between the second square tube 11 and the third square tube 12 in the area of the ends of said square tubes 11 and 12 that face away from the turntable 3.
  • the square tubes 8 and 10-14 may have an external height of 40 mm, an external width of 60 mm and a material thickness of 5 mm.
  • a first plate 15, being shown separately in figure 5, is attached on top of the square tubes 10-14, said plate 15 preferably being connected to the square tubes 10-14 by means of welding.
  • Said first plate 15 may have a thickness of 5 mm.
  • the plate 15 is equipped with a recess 16, a first opening 17 and a second opening 18.
  • the object of the first opening 17 is to make it possible for a sprocket of a drive motor of the turntable 3 to reach sufficient far downwards and that the second opening 18 is arranged for purposes of inspection and service.
  • a second plate 19, shown separately in figure 6, is attached on top of the first plate 15, said second plate 19 being suitably connected to said first plate 15 by means of welding, preferably all over welding.
  • the second plate 19 has suitably a thickness of 5 mm and is provided with a third opening 20, which has dimensions that in principle are identical with the dimensions of the first opening 17 of the first plate 15.
  • a mast base 5a is attached, preferably welded, on top of the second plate 19, said mast 5 being mounted on the mast base 5a in a suitable way.
  • the first and second square tubes 10 and 11 respectively are mutually connected at their bottom by means of a third plate 21 that suitably is welded to the first and second square tubes 10 and 11 respectively.
  • a fourth plate 22 is attached at the bottom between the second and the third square tube 11 and 12 respectively. Said fourth plate 22 extends from the area of the first opening 17 and the third opening 20 in direction towards the turntable 3 (not shown in figure 3) and a certain distance on the lower side of said turntable 3 corresponding to about 1/4 of the diameter of the turntable 3.
  • the object of the fourth plate is primarily to give the base unit 1 a sufficient rigidity.
  • a fifth plate 23 is provided at the bottom between the fourth and the fifth square tube 13 and 14 respectively, said fifth plate 23 also suitably being connected to the appurtenant square tubes 13 and 14 respectively by means of welding.
  • the object of the fifth plate 23 is in principle identical with the object of the third plate 21.
  • the third and fifth plates 21, 23 may have a thickness of 8 mm while the fourth plate 22 may have a thickness of 4 mm.
  • first and second parallel, longitudinal square tubes 10 and 11 are mutually connected by means of second and third transverse square tubes 24 and 25 respectively and the fourth and fifth parallel, longitudinal square tubes 13 and 14 respectively mutually connected by means of fourth and fifth transverse square tubes 26 and 27 respectively. Further away towards the ends of the first and fifth square tubes 10 and 14 respectively, facing away from the mast 5, said square tubes being mutually connected by means of a sixth transverse square tube 28.
  • These square tubes 24-28 are suitably connected to the appurtenant longitudinal parallel square tubes 10, 11, 13, 14 by means of welding.
  • the base unit 1 comprises a number of U-profiles 29-34 that support support rollers 35, see figures 7 and 8, that in their turn support the turntable 3 (not shown in figure 3).
  • the U-profiles 29-34 are arranged in a pattern that distributes the support rollers 35 relatively even over the surface defined by the turntable 3.
  • One U-profile 34 extends parallel to the parallel, longitudinal square tubes 10-14 while the rest of the U-profiles 29-33 extend transverse to the parallel, longitudinal square tubes 10-14.
  • the U-profiles 29-34 are suitably connected to the parallel, longitudinal square tubes 10-14 and the transverse square tubes 24-28 by means of welding.
  • Each U-profile 29-34 accommodates at least one support roller 35 with its appurtenant holder.
  • support roller 35 with its appurtenant holder 36, is shown in detail in figures 8-10.
  • the holder 36 is fixed relative to the appurtenant U-profile 29-34 by having tongues 37 of the holder 36 received and welded in holes (not shown) of the appurtenant U-profile 29-34.
  • On the outside of the holder 36 a clamp 38 is provided, said clamp 38 fixing a shaft 39 of the support roller 35 in the holder 36.
  • bearings 40 are provided between the shaft 39 and the support roller 35.
  • an opening 41 is arranged in the bottom of the U-profile 29-34 below each support roller 35.
  • said opening 41 it is possible to lower the support roller 35 closer to the foundation that the base unit 1 rests upon, i.e. the height of the turntable 3 above the foundation is reduced compared to conventional turntables.
  • a centre plate 42 is provided in the middle of the portion of the base unit 1 that supports the turntable 3 , said centre plate 42 inter alia supporting a spigot 43 upon which the turntable 3 is rotatably journalled.
  • Said centre plate 42 is in a suitable way, preferably by means of welding, connected to the adjacent square tubes 11, 12, 28 and the U-profile 30.
  • the turntable 3 is thus supported by the support rollers 35 and rotated by a not shown arrangement that normally comprises an endless chain or transmission belt that is driven by an electric motor.
  • the above-described base unit 1 according to the present invention is generally 20-30 mm lower than prior art base units of stretch wrapping machines of the type in question.
  • the turntable is located at a height of about 55 mm from the foundation that the base unit 1 rests upon.
  • the low height of the turntable 3 has been achieved by having the base unit 1 according to the present invention comprising a number of square tubes 10-14 having relatively low height.
  • two intermediate and adjacent each other located square tubes 11, 12 are included in a box girder construction, see figure 4, that besides said second and third square tubes 11, 12 also includes a part of the first plate 15, i.e.
  • first and second plates 15 and 19 respectively mutually connected, preferably by welding, they cooperate in an excellent way when carrying bending stresses on the base unit 1.
  • first and second square tubes 10 and 11 respectively are included in a box girder construction, see figure 4, where the second plate 19 and the third plate 21 are included in said box girder construction.
  • fourth and fifth square tubes 13 and 14 respectively are included in a box girder construction see figure 4, together with a part of the first plate 15 and the fifth plate 23.
  • the above-mentioned spaces between the plates 15, 23 and 19, 21 respectively are especially designed to receive forks of fork lift trucks, by which stretch wrapping machines of the type in question may be transported.
  • This structural arrangement of the above discussed spaces it is realised that a larger length of the appurtenant fork will be received in the space between the second plate 19 and the third plate 21 than in the space between the first plate 15 and the fifth plate 23.
  • the necessary spaces for the forks have been made as small as possible without risking a proper handling of the stretch wrapping machine by means of a fork lift truck.
  • the distance between the second plate 19 and the third plate 21 is at least 37 mm and that the distance between the first plate 15 and the fifth plate 23 is at least 32 mm.
  • the reason for this difference as regards the height of the spaces in question is that the forks have a height that declines towards the tip.
  • the base unit 1 is also provided with an intermediate box girder construction, i.e. the box girder construction including the square tubes 11 and 12.
  • an intermediate box girder construction i.e. the box girder construction including the square tubes 11 and 12.
  • said intermediate portion at least along a certain portion of its length, may include further square tubes that cooperate with the adjacent square tubes in a different way than through a box girder construction.
  • a number of square tubes 8, 10-14, 24-34 are included in the base unit 1.
  • these square tubes constitute other elements having a web, said elements being load-carrying in connection with operation or handling of the stretch wrapping machine.
  • These elements, having a web may in a corresponding way as the square tubes be included in box girder constructions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP00850160A 1999-10-14 2000-10-10 Vorrichtung zum Umwickeln mit Dehnfolie Withdrawn EP1092627A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9903687 1999-10-14
SE9903687A SE516486C2 (sv) 1999-10-14 1999-10-14 Sträckfilmsmaskin

Publications (2)

Publication Number Publication Date
EP1092627A2 true EP1092627A2 (de) 2001-04-18
EP1092627A3 EP1092627A3 (de) 2002-07-17

Family

ID=20417341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00850160A Withdrawn EP1092627A3 (de) 1999-10-14 2000-10-10 Vorrichtung zum Umwickeln mit Dehnfolie

Country Status (2)

Country Link
EP (1) EP1092627A3 (de)
SE (1) SE516486C2 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1325866A1 (de) * 2002-01-07 2003-07-09 Antonio Marcetti Fussplatte für eine Umhüllungsvorrichtung mit einer festen Säule und einem Drehtisch
WO2003091102A1 (en) * 2002-04-23 2003-11-06 Lindstroem Arvid Goeran Bottom unit of a stretch wrapping machine
WO2009087600A2 (en) * 2008-01-10 2009-07-16 Siro S.R.L. Rotary-platform and foldable-column wrapping machine
US8474224B2 (en) * 2006-11-30 2013-07-02 Robopac S.P.A. Turntable apparatus for wrapping machine
WO2014205908A1 (zh) * 2013-06-27 2014-12-31 杭州永创智能设备股份有限公司 一种缠绕机
EP3050810A1 (de) * 2015-01-30 2016-08-03 MITEC S.r.l. con unico socio Einwickelmaschine mit einer drehplattform
IT201700020644A1 (it) * 2017-02-23 2018-08-23 Massimiliano Sbrighi Macchina avvolgitrice a piattaforma rotante

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0205909A1 (de) * 1985-05-27 1986-12-30 Giacomo Valsesia Automatische Wägevorrichtung in Verpackungsmaschinen mit einer Drehscheibe
EP0279871A1 (de) * 1987-02-21 1988-08-31 Cyklop International Ag Maschine zum Umwickeln von Packgut mit einer Streckfolienbahn
US5566530A (en) * 1990-08-09 1996-10-22 Johnstone; Peter Packaging system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0205909A1 (de) * 1985-05-27 1986-12-30 Giacomo Valsesia Automatische Wägevorrichtung in Verpackungsmaschinen mit einer Drehscheibe
EP0279871A1 (de) * 1987-02-21 1988-08-31 Cyklop International Ag Maschine zum Umwickeln von Packgut mit einer Streckfolienbahn
US5566530A (en) * 1990-08-09 1996-10-22 Johnstone; Peter Packaging system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1325866A1 (de) * 2002-01-07 2003-07-09 Antonio Marcetti Fussplatte für eine Umhüllungsvorrichtung mit einer festen Säule und einem Drehtisch
WO2003091102A1 (en) * 2002-04-23 2003-11-06 Lindstroem Arvid Goeran Bottom unit of a stretch wrapping machine
US8474224B2 (en) * 2006-11-30 2013-07-02 Robopac S.P.A. Turntable apparatus for wrapping machine
WO2009087600A2 (en) * 2008-01-10 2009-07-16 Siro S.R.L. Rotary-platform and foldable-column wrapping machine
WO2009087600A3 (en) * 2008-01-10 2009-10-08 Siro S.R.L. Rotary-platform and foldable-column wrapping machine
WO2014205908A1 (zh) * 2013-06-27 2014-12-31 杭州永创智能设备股份有限公司 一种缠绕机
US20160137322A1 (en) * 2013-06-27 2016-05-19 Hangzhou Youngsun Intelligent Equipment Co., Ltd. Winding machine
US10781005B2 (en) * 2013-06-27 2020-09-22 Hangzhou Youngsun Intelligent Equipment Co., Ltd. Winding machine
EP3050810A1 (de) * 2015-01-30 2016-08-03 MITEC S.r.l. con unico socio Einwickelmaschine mit einer drehplattform
IT201700020644A1 (it) * 2017-02-23 2018-08-23 Massimiliano Sbrighi Macchina avvolgitrice a piattaforma rotante

Also Published As

Publication number Publication date
SE9903687L (sv) 2001-04-15
SE516486C2 (sv) 2002-01-22
EP1092627A3 (de) 2002-07-17
SE9903687D0 (sv) 1999-10-14

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