EP4155217A2 - Éjecteur pour une machine de cerclage - Google Patents

Éjecteur pour une machine de cerclage Download PDF

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Publication number
EP4155217A2
EP4155217A2 EP22197696.2A EP22197696A EP4155217A2 EP 4155217 A2 EP4155217 A2 EP 4155217A2 EP 22197696 A EP22197696 A EP 22197696A EP 4155217 A2 EP4155217 A2 EP 4155217A2
Authority
EP
European Patent Office
Prior art keywords
tape
channel
guide frame
ejector
flat
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.)
Pending
Application number
EP22197696.2A
Other languages
German (de)
English (en)
Other versions
EP4155217A3 (fr
Inventor
Dr. Felix Johannes van der Beek
Dieter Banholzer
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.)
Mosca GmbH
Original Assignee
Mosca GmbH
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 Mosca GmbH filed Critical Mosca GmbH
Publication of EP4155217A2 publication Critical patent/EP4155217A2/fr
Publication of EP4155217A3 publication Critical patent/EP4155217A3/fr
Pending 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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/185—Details of tools
    • 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
    • B65B13/00—Bundling articles
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/04—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes with means for guiding the binding material around the articles prior to severing from supply
    • B65B13/10—Carriers travelling completely around the articles while holding the free end of material
    • 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
    • B65B13/00—Bundling articles
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/04—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes with means for guiding the binding material around the articles prior to severing from supply
    • B65B13/06—Stationary ducts or channels
    • 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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/22—Means for controlling tension of binding means
    • 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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/24—Securing ends of binding material
    • B65B13/32—Securing ends of binding material by welding, soldering, or heat-sealing; by applying adhesive

Definitions

  • the invention relates to a device for strapping objects using a flat strap, with at least one strap guide frame, a cover frame and an ejector, the strap guide frame having a flat strap channel open on a narrow side, the narrow side of which ends on a first side face of the strap guide frame.
  • cover frame is displaceable relative to the tape guide frame between a closed position and an open position, so that in the closed position it rests against the first side surface of the tape guide frame and covers the narrow side of the tape channel and is spaced from the narrow side of the tape channel in the open position, and wherein the ejector is attached to a fastener such that it protrudes into the tape channel from a second side surface of the tape guide frame, the second side surface being opposite the first side surface of the tape guide frame.
  • Such devices are commonly called strapping machines.
  • the European patent EP 2 051 909 B1 the applicant discloses such a strapping machine with a cover element that can be displaced along the first side surface.
  • the ejector here is a pin that can be pushed into the sliver channel.
  • the ejector In the DE 33 46 598 A1 the ejector is designed as a barb which engages from above in a slot severing the tape guide frame in the region of the tape channel.
  • the ejector is designed as a pivoting arm.
  • the print DE 10 2018 127 052 A1 describes a pivoted ejector that moves into the sliver channel when a cover member clears the sliver channel.
  • a strapping machine with an ejector which, as described above, protrudes from the second side surface of the strap guide frame into the strap channel is out the U.S. 6,073,425 A known.
  • the fastening element consists of a fastening pin and a fastening plate screwed to it, which carries an ejector pin which can be pressed into the ligament channel through through-holes and pushes the ligament out of the ligament channel.
  • This construction is complex due to the variety of parts.
  • the thin pin that can be moved into the ligament channel is not very stable and can easily deform.
  • the object of the invention is to further develop a strapping machine with an ejector that can be moved into the strap channel from the closed side in such a way that the ejector can be manufactured simply and inexpensively and is reliable. Furthermore, the stability of the tape guide frame should be preserved.
  • the ejector is a flat component with two legs at an angle to one another, the free end of the first leg being attached to the fastening element and the free end of the second leg protruding into a flat opening with little play , which protrudes through the tape guide frame, extends transversely to the tape channel and whose height is greater than the height of the tape channel transverse to the plane of the tape.
  • the ejector is a flat, L-shaped angle part, the two legs of which are preferably connected at right angles at their ends in a corner region.
  • the L-shaped ejector can, for example, be manufactured as a stamped part from sheet steel.
  • the free end of the first leg of the ejector is attached to the fastener.
  • This first leg projects at a distance from the second side surface of the tape guide frame towards the flat opening in the tape guide frame.
  • the second leg of the L-shaped flat component extends parallel to the direction of displacement in which the tape guide frame and the cover frame can be displaced relative to one another. The free end of the second leg protrudes into said flat opening with little play.
  • the free end of the second leg is pushed into the flat opening.
  • the flat opening protrudes through the tape guide frame and extends transversely to the tape channel.
  • the height of the shallow opening, and consequently also the height of the free end of the second leg is greater than the height of the ligament channel transverse to the plane of the ligament. This means that the free end of the second leg protrudes above and below the thickness of the strap in the strap channel. This ensures that the strap is safely pushed out of the strap guide channel.
  • the ejector designed as a flat angle part has a greater rigidity than the round ejector pin known from the prior art, the diameter of which is limited to the height of the sliver channel. Both the fastener and the L-shaped angle member forming the ejector itself are extremely inexpensive to manufacture and easy to assemble.
  • the tape guide frame may have opposing projections on either side of the tape channel in which the flat opening is located.
  • the aim is to produce the tape guide frame as light and material-saving as possible.
  • the tape guide frame is usually made of a plastic that is easy to process, has the necessary strength to guide the tape and allows the tape to be transported through the tape channel with little friction. Since the flat opening extends transversely to the plane of the sliver channel and is therefore greater in height than the sliver channel, it is advantageous to equip the sling guide frame with two opposing thickenings or projections in the area of the flat opening. This ensures that the sliver guide frame has the required strength despite the flat opening running transversely to the sliver channel.
  • the tape guide frame can be composed of straight elements and corner elements, each straight element having a straight section of tie channel and each corner member comprises a curved section of tie channel and wherein each corner member has a flat opening disposed therein.
  • the tape guide frame is an essentially closed frame that is only interrupted in the area of the tape drive and the unit for closing the tape loop that is formed.
  • the size of the strap guide frame can vary depending on the type of strapping machine. If the belt guide frame consists of straight elements and corner elements, the straight elements can be produced as extruded profiles of any length.
  • the corner elements which have the protruding flat openings and optionally the opposite projections in the area of the flat openings, can be manufactured using the injection molding process. Depending on the design of the strapping machine, the straight, extruded elements can be cut to length so that strap guide frames of different dimensions can be produced with uniform components.
  • a tape drive can be set up to introduce the tape into the tape channel in a feed direction, the tape channel having a continuously decreasing height in the feed direction in front of the flat opening, so that it opens into the flat opening with the minimum height and in the feed direction widened in a funnel shape behind the opening so that it opens into the flat opening at its maximum height.
  • the sliver channel is funnel-shaped in front of the flat opening and behind the flat opening in the supply direction. Before the shallow opening, it narrows from the usual height to a reduced height. Behind the flat opening, it has a height that is greater than the usual height, and the height reduces to the usual value. It should be noted that the height is measured perpendicular to the plane of the strap inserted into the strap channel.
  • the fastening element can be a fastening pin, the foot portion of which is connected to the cover frame.
  • a screw connection or a rivet connection can be used to attach the foot of the mounting stud to the deck frame.
  • the head portion of the attachment pin may have a slot for receiving the free end of the first leg of the ejector.
  • the head section of the fastening pin and the free end of the first leg of the ejector can have openings which are aligned with one another and through which a fastening pin projects.
  • the slot for accommodating the free end of the leg can be made with a predetermined depth in the material of the attachment pin, e.g. be sawn or milled.
  • the narrow edge of the first leg of the ejector then rests essentially flat against the bottom of the slot, so that the ejector is fixed by the fastening pin essentially non-pivotingly on the fastening pin.
  • either the tape guide frame or the cover frame may be stationary. If the tape spool is stationary and the cover frame is transverse to the tape spool, i. H. is slidable away from the tape guide frame, the tape located in the tape channel of the tape guide frame is pushed out through the opening narrow side of the tape channel by the ejectors attached to the cover frame. In the open position of the cover frame, the strap is completely outside the strap channel.
  • the tape loop produced in this way can be pulled together by the tape drive until it surrounds the object to be strapped with tension. The ends of the strap loop can then be welded together.
  • the cover frame is arranged in a stationary manner on the strapping machine and the strap guide frame is moved, the strap remains in place when the strap guide frame is moved, the strap channel of the strap guide frame being pushed over the ejector and the strap channel consequently being pulled away from the strap. Again it's in the open position possible to contract and close the band loop formed.
  • the strapping machine 1 shown is used for strapping objects 7 with a strap 2 which is drawn off from a supply roll 3 by a pull-in device 4 and fed to a tape magazine 5 . From there, the strap is fed by a strap conveyor device 6 through a tensioning device 8 to a strap channel 15 in a strap guide frame 9, so that the strap 2 forms a loop. The strapping band 2 is then pulled back by the drive of the band conveyor device 6 so that the band loop lies snugly against the object 7 . Now the clamping device 8 is activated, so that the belt loop with a predetermined high Clamping force around the object 7 is pulled.
  • the belt conveyor device 6 and the tensioning device 8 together form the belt drive. They can also be combined to form a drive device.
  • the tensioned loop is then cut off from the tape supply.
  • the start of the loop is connected to the end of the loop by means of a closing unit 10 .
  • the closure unit 10 consists, for example, of a welding device which welds the two ends of the tape loop formed to one another.
  • the closure unit 10 welds the foil-like plastic material from which the strapping band 2 is made.
  • a conveyor for transporting the article 7 into and out of the strapping zone within the strap guide frame 9 is in figure 1 not shown.
  • FIG 1 only an outer protective frame of the tape guide frame 9 can be seen.
  • a supporting frame 11 (see 2 ), to which elements 12, 13 are fastened, which form the tape channel 15 of the tape guide frame 9, in which the strapping tape 2 is guided.
  • locking devices for the sliver channel 15 and ejectors 14 are arranged on the supporting frame 11 .
  • a support frame 11 for the strapping machine described here is in figure 2 shown in side view. It is made from sheet steel by folding and laser cutting. Such a steel sheet typically has a thickness of 3 to 6 mm.
  • Corner elements 12 and straight elements 13 are fastened to the support frame 11 .
  • An enlarged view of the corner element 12 is in FIG figure 3 shown.
  • the corner element 12 has a curved section of the band channel 15 .
  • Each straight element 13 has a straight section of the band channel 15 .
  • the figure 3 shows a three-dimensional view of a corner element 12 and a cooperating ejector 14.
  • the corner element 12 is a curved plastic molding and has a curved portion of the Band channel 15 on.
  • the inside figure 3 The beginning of the curved section of the ligament channel 15 visible at the top left runs in the shape of a funnel, i.e. the mouth of the section has a large height on the front side of the corner element 12 in the direction perpendicular to the plane of the belt, which continuously decreases until it reaches the normal height of the curved ligament channel 15 .
  • two thickenings or projections 16, 17 can be seen, in which a flat opening 18 is received, which serves to receive the ejector 14.
  • the area of the corner element 12 with the two projections 16, 17 is enlarged in figure 4 shown.
  • the projections 16, 17 are simple accumulations of material of the plastic material of the corner element 12.
  • the feeding direction for the tape through the tape channel is in figure 3 and 4 left to right.
  • the sliver channel 15 has a funnel-shaped, narrowing course, ie its height perpendicular to the plane of the sliver reduces toward the opening into the flat opening 18 .
  • the ligament channel On the other side of the shallow opening 18, the ligament channel has a large height, which is greater than the normal height of the ligament channel. Consequently, the band channel forms a kind of funnel for the strapping band 2 immediately behind the flat opening 18.
  • FIGs 5 and 6 show sectional three-dimensional representations through the corner element 12 of the tape guide frame 9.
  • the closed position is shown.
  • the tape guide frame 9 is assigned a cover frame 19 which covers the side face of the tape guide frame 9 with the open, narrow side of the tape channel 15 .
  • the closed position is shown, in which the side surface of the tape guide frame 9 rests against a leg of the cover frame 19.
  • the open position is shown in which the tape guide frame 9 is moved away from the cover frame 19 with the tape channel.
  • the ejector 14 moves into the flat opening 18.
  • the ejector 14 is attached to the head portion of an elongate, peg-shaped fastener 21, whose foot section is fixed to the cover frame 19 by a screw 22 .
  • the ejector 14 is formed as an L-shaped flat angle part. It has a first leg 23 which is fastened to the fastening element 21 .
  • the head section of the fastening element 21 has a slot into which the end of the first leg 23 is inserted.
  • a mounting pin 25 extends through aligned openings in the head portion of the fastener 21 on either side of the slot and the first leg 23 of the ejector 14.
  • the first leg 23 extends in a direction transverse to the plane of the tape to the area of the flat opening 18 in the tape guide frame .
  • the second leg 24 running at right angles to the first leg 23 extends at a distance from the fastening element 21 into the flat opening 18 of the corner element 12 . It is particularly in figure 5 it can be seen that the height of the free end of the first leg 23, ie the extension perpendicular to the plane of the tape or the tape channel in the region of the free end of the second leg 24 of the ejector 14 is considerably greater than the height of the tape channel.
  • the shallow opening 18 for receiving the ejector 14 thus extends beyond the belt channel on either side in the direction perpendicular to the plane of the belt.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP22197696.2A 2021-09-28 2022-09-26 Éjecteur pour une machine de cerclage Pending EP4155217A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021125067.6A DE102021125067B4 (de) 2021-09-28 2021-09-28 Ausstoßer für eine Umreifungsmaschine

Publications (2)

Publication Number Publication Date
EP4155217A2 true EP4155217A2 (fr) 2023-03-29
EP4155217A3 EP4155217A3 (fr) 2023-05-10

Family

ID=83457434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22197696.2A Pending EP4155217A3 (fr) 2021-09-28 2022-09-26 Éjecteur pour une machine de cerclage

Country Status (2)

Country Link
EP (1) EP4155217A3 (fr)
DE (1) DE102021125067B4 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346598A1 (de) 1983-04-06 1984-10-11 Peter P. 6930 Eberbach Lüdtke Verfahren und vorrichtung zum umschnueren von schnuergut
US5249518A (en) 1992-10-02 1993-10-05 Signode Corporation Stripping mechanism for strapping machine
US6073425A (en) 1999-05-24 2000-06-13 Tekpak Corporation Guide frame of lashing tape of binding machine
EP2051909B1 (fr) 2006-08-15 2010-12-08 Maschinenfabrik Gerd Mosca AG Machine de cerclage par bande
DE102018127052A1 (de) 2018-10-30 2020-04-30 Mosca Gmbh Bandführungsrahmen
DE102020118163A1 (de) 2019-09-30 2021-04-01 Mosca Gmbh Befestigungsmittel für Bandkanal einer Umreifungsmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU79160A1 (de) * 1978-03-03 1978-06-28 Luedtke P Schweissvorrichtung fuer eine paketverschnuermaschine
EP1249397B1 (fr) * 2001-04-09 2005-01-19 Nichiro Kogyo Co., Ltd. Machine de cerclage avec arc de guidage du lien

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346598A1 (de) 1983-04-06 1984-10-11 Peter P. 6930 Eberbach Lüdtke Verfahren und vorrichtung zum umschnueren von schnuergut
US5249518A (en) 1992-10-02 1993-10-05 Signode Corporation Stripping mechanism for strapping machine
US6073425A (en) 1999-05-24 2000-06-13 Tekpak Corporation Guide frame of lashing tape of binding machine
EP2051909B1 (fr) 2006-08-15 2010-12-08 Maschinenfabrik Gerd Mosca AG Machine de cerclage par bande
DE102018127052A1 (de) 2018-10-30 2020-04-30 Mosca Gmbh Bandführungsrahmen
DE102020118163A1 (de) 2019-09-30 2021-04-01 Mosca Gmbh Befestigungsmittel für Bandkanal einer Umreifungsmaschine

Also Published As

Publication number Publication date
US20230095472A1 (en) 2023-03-30
EP4155217A3 (fr) 2023-05-10
DE102021125067B4 (de) 2023-08-03
DE102021125067A1 (de) 2023-03-30

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