EP0727353A2 - Folienwickelmaschine - Google Patents

Folienwickelmaschine Download PDF

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Publication number
EP0727353A2
EP0727353A2 EP96100834A EP96100834A EP0727353A2 EP 0727353 A2 EP0727353 A2 EP 0727353A2 EP 96100834 A EP96100834 A EP 96100834A EP 96100834 A EP96100834 A EP 96100834A EP 0727353 A2 EP0727353 A2 EP 0727353A2
Authority
EP
European Patent Office
Prior art keywords
winding
pallet
film
machine according
foil
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Withdrawn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
EP96100834A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0727353A3 (enrdf_load_stackoverflow
Inventor
Dieter Ing. Scheich
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.)
SCHEICH, DIETER
Original Assignee
Sitec Gesellschaft fur Prozess- und Anlagentechnik Mbh
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 Sitec Gesellschaft fur Prozess- und Anlagentechnik Mbh filed Critical Sitec Gesellschaft fur Prozess- und Anlagentechnik Mbh
Publication of EP0727353A2 publication Critical patent/EP0727353A2/de
Publication of EP0727353A3 publication Critical patent/EP0727353A3/xx
Withdrawn legal-status Critical Current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
    • B65B11/02—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
    • B65B11/025—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders by webs revolving around stationary articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/14—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
    • B65B2210/20—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles the web dispenser being mounted on a rotary arm

Definitions

  • the invention relates to a film winding machine for wrapping pallets loaded with packaged goods with a flat film strip, according to the preamble of claim 1.
  • flat film strip means film webs between approximately 100 mm and 500 mm wide made of thermoplastic materials, which are preferably either elastically stretchable (stretch film) or shrinkable by the action of heat (shrink or thermofoil).
  • the film wrapping machine according to the invention can also be used for wrapping loaded pallets with another flat tape made of paper, fabric, fleece, etc., provided that the tensile strength of such materials is suitable for this wrapping method.
  • film winding machines of the generic type are referred to as rotor machines, because they encircle the loaded pallet, which in any case is temporarily standing, by the rotor arm of the film winding machine, which carries the supply of flat film strips in the form of a winding roll.
  • rotor machines When encircling the standing pallet, its packaged goods are wrapped with the flat film strip that unwinds from the winding roll, for example in helical, overlapping turns.
  • shrink film the wrapped pallet is then exposed to heat, in which the shrinking film tightly encloses the pallet packaged goods.
  • the vertical guide leg of the rotor arm is designed as a rigid profile which extends from the top of the rotor arm down to approximately the base of the pallet.
  • the winding device which is designed as a foil slide, is displaceably guided on this profile and is moved in the vertical direction during the winding process on the profile.
  • the film clamp is only provided in a fixed position for the lower end position of the film carriage.
  • a corresponding stationary film clip can be provided for the upper end position of the film slide. The film clips can therefore only be effective in the end positions of the film slide.
  • the pivotable cutting arms are also provided in this known rotor machine in the area of the pallet base, so that the flat film strip can only be cut off there.
  • additional cutting tools with the film slide can be arranged to be able to cut the flat film strip at any height, it is not described how the interaction with the wrapping process and the stationary film clamps should take place.
  • the present invention has for its object to provide an improved film winding machine of the type specified in the preamble of claim 1, in which in particular the flat film strip can be created and cut through at any winding height with the same short film ends.
  • the film winding machine should be of simple and reliable construction.
  • the winding device is in accordance with the shortening or extension of the guide arm moved upwards or downwards, there being no more parts encircling the pallet during the wrapping process below the winding device.
  • the lifting frame which can be moved in the vertical direction independently of the rotor arm on the machine frame, carries both the film clamp and the cutting arms, these elements can, together with the lifting frame, follow the movements of the guide leg and thus the movements of the winding device in height without a collision with the pallet encircling parts with appropriate motion control is possible. In this way, the flat film strip can be placed and cut through at any height on the packaged goods of the pallet.
  • a format adjustment with respect to the cutting and holding elements carried by the lifting frame can easily be done by horizontally displacing the lifting frame, so that the holding and cutting elements can always travel at a constant distance from the packaged goods, so that there is always a constant end length of the flat film strip.
  • the guides of the preferably three-part guide leg have a large guide base due to the mutual spacing of the lateral guide profiles, which allows the parts to be guided precisely and without jamming.
  • the winding device can be pivoted relative to the vertical or the loaded pallet during the wrapping process advantageously in accordance with the selected pitch of the spiral winding so that the flat film strip can be wrapped around the packaged goods of the loaded pallet without wrinkling.
  • a sealing device and / or a paint brush are additionally provided on the lifting frame. Because these additional elements together with the lifting frame moved, they can also be used at any height of the packaged goods.
  • the lifting frame can also be moved horizontally, the elements carried by the lifting frame can be moved almost to the pallet in the horizontal direction.
  • the film wrapping machine designed in this way is therefore suitable for a large range of pallet formats.
  • the arrangement of the conveyor track carrying the pallet can be made in accordance with claim 5, so that short flat film strip ends can be achieved even with small pallet formats, regardless of the size of the format.
  • the winding device is advantageously equipped with a further winding roll, which delivers a comparatively narrower flat film strip.
  • the one winding roll can carry a flat film strip of 500 mm width
  • the further winding roll used for the winding of banderoles carries a flat film strip of 100 mm width.
  • the three-legged design specified in claim 7 is preferred, because it has a very good stability even when the ground conditions are not optimal.
  • this design allows easy access to the pallet from the side on which the single standing leg is located.
  • This single standing leg is advantageously used according to claim 8 for guiding the lifting frame.
  • the film winding machine shown in FIG. 1 is a rotor machine for completely or partially wrapping one with Pallet 1 loaded with packaged goods by means of a flat film strip 2 (FIG. 3) of the type specified at the outset.
  • the machine has a machine frame 3, which essentially consists of an upper horizontal frame part 4 and legs 5, 6 and 7 attached to it.
  • the machine frame 3 is designed with three legs, as shown in FIG. 2. The three legs 5, 6 and 7 or the feet attached to them form the corner points of an isosceles triangle.
  • the two legs 5, 6 or feet which have a smaller mutual spacing, are arranged on one side of the pallet 1 and a conveyor track 8 carrying the pallet, while the third legs 7 or foot, which are at greater distances from these two legs 5, 6 or feet, are arranged on the other side of the pallet 1 or the conveyor track 8 carrying the pallet is arranged.
  • a rotor arm 10 which is rotatably mounted about a vertical axis of rotation and can be driven by a rotary drive 9.
  • the rotor arm 10 carries at one end a rigidly attached, downwardly projecting guide leg 11 which is constructed in several parts in the manner of a retractable and extendable ladder, as shown in FIGS. 1 and 3.
  • the guide leg 11 is formed from three inherently rigid parts 12, 13 and 14, each consisting of two lateral guide profiles and cross struts arranged between them (Fig. 3).
  • the upper part 12 is rigidly attached to the rotor arm 10 and guides the two lateral guide profiles of the middle displaceably arranged part 13 on its two lateral guide profiles.
  • the middle part guides the lateral guide profiles of the likewise displaceable lower part 14 on its two lateral guide profiles Part 14, a winding device 15 is attached.
  • the winding device 15 is guided vertically displaceably on the rotor arm 10 by means of the guide leg 11, which is variable in length.
  • the sliding drive of the parts 13 and 14 relative to the non-displaceable upper part 12 can be carried out in various ways (not shown), both parts 13 and 14 being driven simultaneously or individually one after the other.
  • the sliding drive can be used in any vertical Sliding position are interrupted in order to adjust the winding device 15 according to the respective winding program in relation to the pallet 1 in height.
  • the pallet 1 Before the wrapping process, the pallet 1 is moved into a central position with respect to the axis of rotation of the rotor arm 10 by means of the conveyor track 8, as illustrated in FIGS. 1 and 2. With the pallet 1 in this position, depending on the winding program, the packaged goods are completely or partially wrapped by the rotatably driven rotor arm 10, which encircles the pallet, as indicated by the circle 16 in FIG. 2. In this case, the flat film strip 2 is continuously drawn off from a winding roller 17 of the winding device 15 orbiting with the rotor arm 10 and is wound around the packaged goods under adjustable tension.
  • the flat film strip 2 runs up or down, depending on the sliding direction of the winding device 15, in helical, possibly overlapping at the edges of the packaged goods.
  • the winding device 15 can be fastened with respect to the axis of the winding roller 17 with respect to the vertical both in the direction of the loaded pallet 1 and in the opposite direction by about 10 to 30 ° on the lower part 14 of the guide leg 11, as in FIG. 1 for the maximum limit positions of 30 ° to the zero position are indicated. If the axis of the winding roller 17 is in the left position of the drawing, the winding device 15 is wound upward with an upward displacement. On the other hand, if the axis of the winding roller 17 is in the right position of the drawing, the winding device 15 is wound downward with a downward displacement, in each case with few folds. When winding head windings, foot windings and banderoles, the winding roll 17 is in the zero position with respect to its axis, and the winding device 15 has been moved to the corresponding height and does not change it during the relevant winding process.
  • a further winding roll is additionally accommodated on the winding device 15, the two winding rolls having flat film stacks of different widths, which can optionally be used for wrapping.
  • Such a winding device 15 is shown in FIGS. 8 and 9.
  • the holding mandrels 18, 19 are not shown in FIG. 9.
  • the winding device 15 has a mounting plate 20 for attachment to the lower part 14 of the guide leg 11.
  • the following elements of the winding device 15 can also be seen: a frame 21 for holding or mounting all pivotable parts of the winding device 15, two deflection rollers 22, a brake roller 23 for generating a constant tension in the flat film strip running off, a take-off roller 24 for the pre-stretching, a ball joint 25 which enables the described pivoting of the winding device, a worm drive 26 for the pivoting movement and slide guides 27 for the vertical adjustment of the frame 21 on the mounting plate 20.
  • an spreader roller with a convex-convex lateral surface or Corresponding rubber-coated ring rollers can be provided in order to pull the flat film strip in width before it hits the packaged goods, thereby avoiding wrinkles.
  • the flat film strip 2 to be wound Depending on the material of the flat film strip 2 to be wound, it is placed over the various rollers and rollers in such a way that the flat film strip does not have to be pulled out of the winding device under high tensile stress, as a result of which film tear and excessive tensile loads on the pallet are avoided.
  • a lifting frame 28 is guided such that it can be moved vertically and horizontally, as the direction of movement arrows 29 and 30 in FIG. 1 illustrate.
  • a film clamp 31 for holding the end of the flat film strip 2 and two pivotably mounted cutting arms 32 for severing the flat film strip 2 attached, which are shown in Fig. 1 only in principle.
  • a sealing device 33 additionally arranged on the lifting frame 28 and a paint brush 34 for fixing the ends of the flat film strip to the goods to be packaged on the pallet 1.
  • the brush 34 is used with stretch film. 1
  • the film clip 31 and the cutting arms 32 are attached to the lifting frame 28 in such a way that the cutting arms with their cutting tools are in the working position between the pallet 1 and the film clip 31.
  • the film clip 31 shown in FIGS. 4 and 5 has two arms, each consisting of two parts 35 and 36, which can be telescopically extended and retracted (movement arrows in FIG. 4).
  • the arms 35, 36 are pivotally mounted on a base plate 38 to be fastened to the lifting frame 28 via pivot axes 37.
  • two intermeshing gear wheels 39 are arranged, each of which is non-rotatably connected to an arm 35, 36.
  • An actuating lever 40 which can rotate with the left gear 39 and the left arm 35, 36 is pivotable on the left pivot axis 37 in the drawing.
  • the piston rod 41 of a pressure medium cylinder 42 attached to the base plate 38 engages the actuating lever 40.
  • the two arms 35, 36 are coupled to one another for synchronous counter-rotating pivoting movements by the gear wheels 39.
  • Clamping rubber elements 43 are fastened to the arms 35, 36 for securely holding the flat film strip.
  • the drive means for the telescopic extension and retraction of the outer arm parts 36 on the inner arm parts 35 are not shown.
  • This extension or shortening option for the arms 35, 36 allows these different widths of the flat film strip to be adapted.
  • the arms When the arms are pivoted open (movement arrows in FIG. 4) into the position shown in dash-dotted lines in FIG. 5, the arms can (contrary to the drawing) be retracted in order to reduce the required swivel space.
  • the cutting arms 32 shown in FIGS. 6 and 7 are pivotally mounted on vertical pivot axes 44 in a housing 45 (FIG. 1) attached to the lifting frame 28. With the swivel axes 44 coaxially and non-rotatably engaging gears 46 which are non-rotatably connected to the cutting arms 32. In this way, the cutting arms are also coupled for synchronous opposite movements.
  • articulated levers 47 are fastened to both cutting arms 32, to which the piston rods 48 of pressure medium cylinders 49 engage in an articulated manner.
  • the pressure medium cylinders 49 are articulated to the housing 45 (not shown).
  • the outer ends of the cutting arms 32 carry tensioning and cutting elements 50 (not shown in more detail). The pivoting directions of movement of the cutting arms are marked by arrows in FIG. 7.
  • the conveyor track 8 in the path of the lifting frame 28 is provided with a conveyor track section 51 which can be moved away from the conveyor track 8, as in FIG 1 is indicated.
  • the lifting frame can move into the conveyor track, so that short flat film strip ends can always be achieved regardless of the pallet size.
  • the beginning of the second flat film strip can be attached to the turn previously wound from the first flat film strip by gluing.
  • the winding device 15 can be moved far upwards in order to allow the lifting frame 28 with its film clip 31 and its cutting arms 32 to travel freely over the full pallet height grant. In this way, all conceivable types of wrapping can be implemented in programmed motion sequences on the pallet or the packaged goods, the flat film strip being able to be applied at any height and cut practically without loss.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP96100834A 1995-02-16 1996-01-22 Folienwickelmaschine Withdrawn EP0727353A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995105240 DE19505240C1 (de) 1995-02-16 1995-02-16 Folienwickelmaschine zum Umwickeln beladener Paletten
DE19505240 1995-02-16

Publications (2)

Publication Number Publication Date
EP0727353A2 true EP0727353A2 (de) 1996-08-21
EP0727353A3 EP0727353A3 (enrdf_load_stackoverflow) 1996-08-28

Family

ID=7754153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100834A Withdrawn EP0727353A2 (de) 1995-02-16 1996-01-22 Folienwickelmaschine

Country Status (2)

Country Link
EP (1) EP0727353A2 (enrdf_load_stackoverflow)
DE (1) DE19505240C1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110422374A (zh) * 2019-08-16 2019-11-08 南京斯杩克机器人技术有限公司 一种托盘式在线缠绕机及其缠绕方法
CN111942639A (zh) * 2020-08-21 2020-11-17 王萌莎 一种物流包裹打包机械

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622620C2 (de) * 1996-01-05 2000-10-12 Dieter Scheich Folienwickelmaschine zum Umwickeln beladener Paletten
US8549819B1 (en) * 2006-10-11 2013-10-08 Darrel Bison Pallet roping and wrapping apparatus and method
WO2013024429A2 (en) * 2011-08-16 2013-02-21 Aetna Group S.P.A. System for moving operating units of a wrapping machine, wrapping method and wrapping machine
ITMO20110212A1 (it) * 2011-08-16 2013-02-17 Aetna Group Spa Sistema per movimentare unità operative di una macchina avvolgitrice
US11801953B2 (en) 2022-01-06 2023-10-31 Darrel Bison Pallet wrapping system with overlapping bands
US11628959B1 (en) 2020-04-03 2023-04-18 Darrel Bison Shipping pallet wrapping system
US11685562B1 (en) 2020-04-03 2023-06-27 Darrel Bison Pallet wrapping system with overlapping bands
US11434029B1 (en) 2020-04-03 2022-09-06 Darrel Bison Shipping pallet wrapping system
CN113401392B (zh) * 2021-07-02 2022-08-09 邵东智能制造技术研究院有限公司 箱体自动绕包设备
US11780628B1 (en) 2022-01-06 2023-10-10 Darrel Bison Encoder mount for a pallet wrapping system
US11912452B1 (en) 2022-01-06 2024-02-27 Darrel Bison Pallet wrapping system with intelligent monitoring

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109445A (en) * 1977-07-26 1978-08-29 Shulman Michael H Overhead load-wrapping apparatus
US4938008A (en) * 1987-07-10 1990-07-03 Roy Salzsauler Pallet wrapping apparatus
FR2650556B1 (fr) * 1989-08-02 1991-12-13 Newtec Int Procede et machine de banderolage d'une charge palettisee
DE4032228A1 (de) * 1990-04-03 1991-10-10 Hydraulik Vertrieb Hinners Gmb Vorrichtung zur sicherung von palettierten waren mittels stretchfolienhauben
US5088270A (en) * 1990-12-31 1992-02-18 Mima Incorporated Film-tail heat sealing system
DE4244221A1 (de) * 1992-12-24 1994-08-25 Sima Regel Und Anlagentechnik Verfahren zum Herstellen einer Schrumpffolienhülle für beladene Paletten

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110422374A (zh) * 2019-08-16 2019-11-08 南京斯杩克机器人技术有限公司 一种托盘式在线缠绕机及其缠绕方法
CN110422374B (zh) * 2019-08-16 2021-02-26 南京斯杩克机器人技术有限公司 一种托盘式在线缠绕机及其缠绕方法
CN111942639A (zh) * 2020-08-21 2020-11-17 王萌莎 一种物流包裹打包机械

Also Published As

Publication number Publication date
DE19505240C1 (de) 1996-03-14
EP0727353A3 (enrdf_load_stackoverflow) 1996-08-28

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