EP1574432A1 - Dispositif à double contact pour plier en accordéon - Google Patents
Dispositif à double contact pour plier en accordéon Download PDFInfo
- Publication number
- EP1574432A1 EP1574432A1 EP04005621A EP04005621A EP1574432A1 EP 1574432 A1 EP1574432 A1 EP 1574432A1 EP 04005621 A EP04005621 A EP 04005621A EP 04005621 A EP04005621 A EP 04005621A EP 1574432 A1 EP1574432 A1 EP 1574432A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stretch film
- reef
- stretch
- film
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000009977 dual effect Effects 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract description 19
- 229920006302 stretch film Polymers 0.000 claims description 82
- 238000007670 refining Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims description 2
- 239000011888 foil Substances 0.000 abstract description 9
- 230000037303 wrinkles Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000009499 grossing Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010409 ironing Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000012858 packaging process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000037339 smooth wrinkles Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Images
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
- B65B11/58—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
-
- 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
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
- B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state
- B65B9/135—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state for palletised loads
Definitions
- the invention relates to a device for wrapping preferably palletized General cargo with a tubular or hood-shaped stretch film according to the preamble of Claim 1, and a corresponding method.
- Devices of the generic type are, as regards their basic components, usually comparable to those of European Patent Application 0 344 815 A1 described device. They consist of a machine frame, on a regular basis a lifting frame (in approximately vertical direction) is moved up and down.
- the lifting frame usually carries the reef brackets, which in turn are opposite the lifting frame in Transverse direction (ie in approximately horizontal direction) are movable to the stretch film after stretching the stretch film, stretch across the reef bows transversely, d. H. to be able to stretch elastically, ie to be able to produce the so-called horizontal stretch.
- the reef bars can be very be configured differently.
- each reef bar is a Refforgan assigned in the form of a motor-driven Refrefolle.
- the Refforgan can usually be approached to the respective reef bracket that its refresh under Using the reef bar as an abutment presses on the stretch film and so taking advantage The friction forces the stretch film pulls on the reef bar, so hit can.
- the stretched stretch film then settles in said accordion-like folds on the reef bars off.
- the finished stretched stretch film section is then processed by appropriate method the reef bar transversely, ie i.d.R. stretched in a largely horizontal direction. In doing so, any wrinkles, and in particular the said accordion-like folds, will become strongly pressed together. As a result, two or more layers come at various points of stretch film strongly pressed against each other - seen in the horizontal direction - each other to lie, so it form wrinkles, which can be described as "Überlappfalten".
- the coefficient of friction "film against film” is generally smaller than the coefficient of friction "Foil against reef bow".
- the reef bow seen in the vertical direction, sufficient to carry out long and the Refforgane accomplishing the impact on the reef hanger with their driven Reffrollen each approximately in the middle of the reef bar, or far enough away from the trigger-side upper edge of the reef bar, allowing it to attack, leaving below the Reffrollen the stretch film accordion-shaped is stored carefullyrefft and above the Reffrollen, due to their tensile forces, the stretch film hood over a not too small stretch smoothly on the extended area of the reefing rests. Such, larger sizing of the reef bar is undesirable.
- the invention is therefore based on the object, an apparatus and a method to provide the generic type, the fast and with simple means in the Location is, a stretch wrapping the side surfaces so on the reef bar rinse open, so that the danger that overlap after stretching when removing the film overlap reach into critical areas of the reef bar, is substantially reduced and the film is not pulled or damaged in these areas.
- every Refforgan has reff facilities with which it is at least temporarily simultaneous act on the stretch film in two zones spaced apart in the direction of refraction can, that between the two zones located stretch film section overlap is arranged on the respective reef bracket. Eventually in the area between Wrinkles reaching the zones become both on impact and peeling off pulled smoothly in this area.
- the two said zones are so far apart that reliably dissolve the overlapping creases. Ie. that overlap only in a few cases between the zones and can reach the critical area. This effect is advantageously both when the film meets the reefing bow also achieved when removing the film of the same.
- the Refforgane are equipped so that each Refforgan two drivable, has refraction devices arranged behind one another in relation to the direction of impact, preferably rolls, namely a first refresh roll and a second, behind it arranged train roller are formed whose distance from each other advantageously is adjustable.
- the device becomes designed so that the Refrefolle, ie the role to which the slide at the beginning of An encounter first meets with its perimeter coming in contact with the stretch film slower peripheral speed turns than the second, so subsequent train role, so that between the rollers located stretch film section during the arrival pulled or smoothed or wrinkle-free pulled.
- Such pulling causes any eventual impact with the hood between the two roles advised wrinkles are reliably pulled apart.
- the device is designed so that the stretch film during operation of the device at least one place on an imaginary, direct line between the said zones neither with the reef bars nor with the Refforganen in contact comes.
- it succeeds particularly effective when arriving and subtracting to smooth wrinkles in the area between the two rolls.
- Folds made in this area can easily be pulled apart in such a design be, because the friction of the individual foil layers in the area of the folds is canceled as soon as the relevant fold on the direct line connecting the said zones neither with the reef bars nor with the Refforganen in contact comes. Any force that acts perpendicular to the fold and the fold frictionally is held together is lifted.
- a design of the device of the type is particularly preferable in which one of Both roles in the operation of the device, the stretch film against a resilient Area of the relevant reef hanger presses.
- This way becomes a special one effective interaction of both roles in their effect ensured and on everyone Case, an overload of the film in the area between the two rollers avoided.
- the elastically resilient area can (if necessary) Slip between the film and the role occur.
- the spring force of elastically resilient range adjustable is adjustable so that can be tuned exactly when Slippage occurs.
- the device can be simplified if you only meet the Pull roll positive, d. H. motor, drives and the Refrefolle during operation of the device drives negative, d. H. slows. Even then, a tension arises between these two rollers, the wrinkles that have occurred in the area between the two rollers reliably pulls apart.
- the procedural part of the object is achieved by applying to the stretch film during the impact by the Refforgane each by means of two spaced apart Reef facilities at least temporarily simultaneously in two from each other in Aufreffraum spaced zones so acted on the stretch film that after completion the Stretchfolienabêt located between the two zones overlap overlap is arranged on the respective reef bracket.
- When pulling off may be wrinkles also reaching the area between the zones, so that they can not get into the critical area of the upper edge of the reef bar.
- the device according to the invention which is not shown here as a whole, consists in essential from the beginning in connection with the discussion of the state of the Technique mentioned, known basic components that are designed in many ways or can be modified. Numerous other well-known components that go to the complete Carrying out a packaging process of the type in question here required are, come - depending on the individual case - added.
- Fig. 1 shows one of usually four - but occasionally more, about six or eight - reef bars 1, as well as this associated with Refforgan 2.
- the reef bracket 1 is for mounting on a drive, which move him along an arrow S in the horizontal direction back and forth can.
- the Refforgan 2 consists of a feed device 4, here in the preferred Form of an advantageous manner pneumatically operated feed cylinder, a Reff dock consisting of a refill 5a and a tension roller 5b, one of the two Rolling driving Reffmotors 3 and an arranging for the required translation chain or belt transmission 6.
- the feed device 4 can be controlled accordingly and ensures that the refroll 5a and the pull roller 5b moved to their working position and in due course be withdrawn from their working position, respectively by a movement to the left or right along an arrow V.
- the feed device 4 is usually mounted with its base 7 on the same drive unit, the also the reef bracket 1 along the arrow S back and forth. In this way will ensured by simple means that the Refforgan 2 in a moving apart of the Reffbügel for the purpose of Querstretchens the stretch film together with the reefing 1 is being reduced.
- the reef bow 1 has its discharge side Upper edge of a critical area K.
- this critical area K should be during stripping the stretch film of a stretched held stretch film supply 8 only a few, preferably get almost no Kochlappfalten. This is because in the critical area K the bow cross section changes greatly.
- the critical range K is the common one used in practice Facilities in the area of the upper edge of the reef bar. Alternatively, however, is the use from top to bottom almost smooth reefing without significant cross-sectional changes conceivable, with such reefbügeln then it only to prevent that Matterlappfalten "jump off" of the reef bars.
- the Refforgane have returned along the arrow V, so that a noticeable gap between the respective reef bow 1 and the rollers 5a and 5b.
- the reef bar 1 and the other reef bars become one short distance into the usually opened by additional aids stretch film tube introduced, preferably approximately so far, that the lower edge of the Stretchfolienschlauchs a held on reefing 1, free-running roller 11 just covered.
- the reef hanger so pretty fast in the stretch film tube to position.
- the lower pull roller 5b is supported in its operating position advantageously not directly to a substantially rigid portion of the reef bar 10 but rather interacts with a bracket 12, which in the horizontal direction seen secured by a screw 14 and held by a screw 13 Compression spring in the horizontal direction insofar spring-loaded, that a pressure of the Ironing 12 is realized to the tension roller.
- the bracket 12 may also be mounted resiliently pivotable. It limits the Bracket 12, the force that can apply the pull roller 5b on the film. So too limits the frictional forces that can apply the pull roller 5b on the film.
- the spring force with which the bracket 12 is held is, adjustable, which is not shown here.
- a helpful contribution to the elimination of wrinkles or to improve the smoothing also provides the profile of the pull roller 5b.
- This profile consists of individual, in the circumferential direction elastic studs 17, between which there are each far distances (profile gaps). In this way, a rapidly increasing and decreasing tensile load applied to the film located between the two rollers 5a and 5b, the the result is optimized.
- the vertical extent of the region G that is actually required in the individual case can be determined by the person skilled in the art each easily determine. It hangs beside those of the device and those of the used foils given parameters (coefficient of friction between Reffbügel and film, between film and film, coating speed of the stretch film over the Cargo, concrete geometry of the reef bar, degree of horizontal and possibly vertical Stretchs, etc.) of the desired reliability, d. H. from the degree of security, with which the skilled person wants to prevent overlapping creases in the critical area K reach. As a rule, there is an optimal compromise between the required Compactness of the reef bow on the one hand and a sufficiently reliable avoidance of Overlap creases in the critical region K on the other hand.
- the area is located G between the critical area K and the area ZH in which the film supply 8 accordion-like ismatirefft.
- the bracket 12 in its altitude, d. H. in vertical direction, adjustable on the reef bar 1, while additionally / or alternatively, the distance of the rollers 5a, 5b adjustable can be.
- the pull roller 5b for example, is pivotally mounted and only shortly before Completion of Reffvorganges is separately delivered so that it interacts with the refroll 5a.
- the preferred solution is as preferred Embodiment illustrative figures shown. Because with such an execution The construction effort is kept low and also reduces the risk of error, which is approximately by the fact that it by the subsequent delivery of the tension roller 5 b under unfavorable Circumstances can lead to an unwanted foil rope or the like.
- rollers 5a and 5b must also be seen in Aufreffraum not absolutely accurate with each other lie. A certain, not significantly disturbing lateral offset between the two rollers 5a and 5b is allowed.
- the tension roller 5b continues to support in its operating position on the viewed in the horizontal direction floating bracket 12 from so the smoothing effect in the area G between zones Z1 and Z2 also during the stripping process continue to maintain.
- the lower tension roller 5b is supported in its Operating position advantageously on a bracket 12 from, in the horizontal direction seen secured by the screw 14 and held by a screw 13 Compression spring in the horizontal direction insofar spring-loaded, that a pressure of the bracket 12 is realized to the tension roller.
- the bracket can instead of such, preferably floating bearing be mounted spring-hinged.
- the refining roller 5a and the tension roller 5b have almost the same peripheral speed on.
- a particularly low-friction, elaborately designed freewheel is not here necessary, since the frictional forces of the pull roller 5b or the freewheel rather desired are, because of this a certain, albeit slight braking effect on the film is exercised, which in turn the desired smoothing effect now during the removal process entails.
- the free-running pull roller accordingly slow down in a device equipped with two drives those to drive the tension roller at a lower speed, so that also the desired Effect occurs.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Artificial Fish Reefs (AREA)
- Cultivation Of Seaweed (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Air Bags (AREA)
- Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Windings For Motors And Generators (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04005621A EP1574432B1 (fr) | 2004-03-09 | 2004-03-09 | Dispositif à double contact pour plier en accordéon |
AT04005621T ATE362874T1 (de) | 2004-03-09 | 2004-03-09 | Doppelkontakt-reffsystem |
PL04005621T PL1574432T3 (pl) | 2004-03-09 | 2004-03-09 | Dwustykowy układ do fałdowania |
ES04005621T ES2283893T3 (es) | 2004-03-09 | 2004-03-09 | Sistema de plegado de doble contacto. |
DK04005621T DK1574432T3 (da) | 2004-03-09 | 2004-03-09 | Oprulningssystem med dobbelt kontakt |
DE502004003875T DE502004003875D1 (de) | 2004-03-09 | 2004-03-09 | Doppelkontakt-Reffsystem |
PT04005621T PT1574432E (pt) | 2004-03-09 | 2004-03-09 | Sistema de dobragem de duplo contacto. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04005621A EP1574432B1 (fr) | 2004-03-09 | 2004-03-09 | Dispositif à double contact pour plier en accordéon |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1574432A1 true EP1574432A1 (fr) | 2005-09-14 |
EP1574432B1 EP1574432B1 (fr) | 2007-05-23 |
Family
ID=34814278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04005621A Expired - Lifetime EP1574432B1 (fr) | 2004-03-09 | 2004-03-09 | Dispositif à double contact pour plier en accordéon |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1574432B1 (fr) |
AT (1) | ATE362874T1 (fr) |
DE (1) | DE502004003875D1 (fr) |
DK (1) | DK1574432T3 (fr) |
ES (1) | ES2283893T3 (fr) |
PL (1) | PL1574432T3 (fr) |
PT (1) | PT1574432E (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012099918A1 (fr) * | 2011-01-18 | 2012-07-26 | Illinois Tool Works Inc. | Dispositif d'étranglement |
WO2012154641A1 (fr) * | 2011-05-06 | 2012-11-15 | Illinois Tool Works Inc. | Retenue en étirement |
WO2016070883A1 (fr) * | 2014-11-04 | 2016-05-12 | Frank Bruhn Aps | Système d'emballage par enveloppement agencé horizontalement |
US9932134B2 (en) | 2012-09-07 | 2018-04-03 | Signode Industrial Group Llc | Method and apparatus for setting corner protectors on a load |
US10011383B2 (en) | 2011-09-30 | 2018-07-03 | Signode Industrial Group Llc | Method for converting a wrapping machine into a transport condition, and a wrapping machine |
US10138012B2 (en) | 2013-10-31 | 2018-11-27 | Signode Industrial Group Llc | Apparatus for fixing and releasing the end of a roll of wrapping film |
US10273031B2 (en) | 2015-02-02 | 2019-04-30 | Signode Industrial Group Llc | Packaging apparatus and method for operating same |
US10421570B2 (en) | 2014-05-07 | 2019-09-24 | Signode Industrial Group Llc | Method for packaging of an article of merchandise |
US12060192B2 (en) | 2019-10-23 | 2024-08-13 | Signode Industrial Group Llc | Systems and methods for wrapping loads of goods with tubular stretch film |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11492155B2 (en) * | 2020-05-14 | 2022-11-08 | Signode Industrial Group Llc | Stretch-hood machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4037105C1 (en) * | 1990-11-22 | 1992-03-05 | Brega Verpackungsmaschinen-Anwendungstechnik Gmbh, 5884 Halver, De | Stretch film packaging machine - incorporates rollers running at different speeds for stretching effect |
-
2004
- 2004-03-09 EP EP04005621A patent/EP1574432B1/fr not_active Expired - Lifetime
- 2004-03-09 DK DK04005621T patent/DK1574432T3/da active
- 2004-03-09 PT PT04005621T patent/PT1574432E/pt unknown
- 2004-03-09 ES ES04005621T patent/ES2283893T3/es not_active Expired - Lifetime
- 2004-03-09 PL PL04005621T patent/PL1574432T3/pl unknown
- 2004-03-09 DE DE502004003875T patent/DE502004003875D1/de not_active Expired - Lifetime
- 2004-03-09 AT AT04005621T patent/ATE362874T1/de active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4037105C1 (en) * | 1990-11-22 | 1992-03-05 | Brega Verpackungsmaschinen-Anwendungstechnik Gmbh, 5884 Halver, De | Stretch film packaging machine - incorporates rollers running at different speeds for stretching effect |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9764867B2 (en) | 2011-01-18 | 2017-09-19 | Signode Industrial Group Llc | Gripper |
WO2012099918A1 (fr) * | 2011-01-18 | 2012-07-26 | Illinois Tool Works Inc. | Dispositif d'étranglement |
US10093439B2 (en) | 2011-01-18 | 2018-10-09 | Signode Industrial Group Llc | Gripper |
US10526097B2 (en) * | 2011-05-06 | 2020-01-07 | Signode Industrial Group Llc | Reefing under stretch |
WO2012154641A1 (fr) * | 2011-05-06 | 2012-11-15 | Illinois Tool Works Inc. | Retenue en étirement |
EP2987734A1 (fr) | 2011-05-06 | 2016-02-24 | Signode International IP Holdings LLC | Procédé et appareil pour regrouper une partie de film tubulaire sur les doigts de collecte d'une machine d'emballage |
US20140137516A1 (en) * | 2011-05-06 | 2014-05-22 | Illinois Tool Works Inc. | Reefing under stretch |
US11273935B2 (en) | 2011-05-06 | 2022-03-15 | Signode Industrial Group Llc | Reefing under stretch |
US10011383B2 (en) | 2011-09-30 | 2018-07-03 | Signode Industrial Group Llc | Method for converting a wrapping machine into a transport condition, and a wrapping machine |
US9932134B2 (en) | 2012-09-07 | 2018-04-03 | Signode Industrial Group Llc | Method and apparatus for setting corner protectors on a load |
US10138012B2 (en) | 2013-10-31 | 2018-11-27 | Signode Industrial Group Llc | Apparatus for fixing and releasing the end of a roll of wrapping film |
US10421570B2 (en) | 2014-05-07 | 2019-09-24 | Signode Industrial Group Llc | Method for packaging of an article of merchandise |
US10800559B2 (en) | 2014-11-04 | 2020-10-13 | Frank Bruhn Aps | Horizontally arranged wrap packaging system |
WO2016070883A1 (fr) * | 2014-11-04 | 2016-05-12 | Frank Bruhn Aps | Système d'emballage par enveloppement agencé horizontalement |
US11097865B2 (en) | 2015-02-02 | 2021-08-24 | Signode Industrial Group Llc | Packaging apparatus and method for operating same |
US10273031B2 (en) | 2015-02-02 | 2019-04-30 | Signode Industrial Group Llc | Packaging apparatus and method for operating same |
US11649084B2 (en) | 2015-02-02 | 2023-05-16 | Signode Industrial Group Llc | Packaging apparatus and method for operating same |
US12060192B2 (en) | 2019-10-23 | 2024-08-13 | Signode Industrial Group Llc | Systems and methods for wrapping loads of goods with tubular stretch film |
Also Published As
Publication number | Publication date |
---|---|
ATE362874T1 (de) | 2007-06-15 |
PL1574432T3 (pl) | 2007-10-31 |
ES2283893T3 (es) | 2007-11-01 |
EP1574432B1 (fr) | 2007-05-23 |
DE502004003875D1 (de) | 2007-07-05 |
PT1574432E (pt) | 2007-08-31 |
DK1574432T3 (da) | 2007-09-24 |
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