EP3581508B1 - Dispositif de séparation pour bandes de cerclage - Google Patents

Dispositif de séparation pour bandes de cerclage Download PDF

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Publication number
EP3581508B1
EP3581508B1 EP18177354.0A EP18177354A EP3581508B1 EP 3581508 B1 EP3581508 B1 EP 3581508B1 EP 18177354 A EP18177354 A EP 18177354A EP 3581508 B1 EP3581508 B1 EP 3581508B1
Authority
EP
European Patent Office
Prior art keywords
foot
strapping
punch
strap
hole punch
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.)
Active
Application number
EP18177354.0A
Other languages
German (de)
English (en)
Other versions
EP3581508A1 (fr
Inventor
Martin Czaja
Christian Nölke
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.)
Titan Umreifungstechnik GmbH and Co KG
Original Assignee
Titan Umreifungstechnik GmbH and Co KG
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 Titan Umreifungstechnik GmbH and Co KG filed Critical Titan Umreifungstechnik GmbH and Co KG
Priority to ES18177354T priority Critical patent/ES2850724T3/es
Priority to EP18177354.0A priority patent/EP3581508B1/fr
Priority to PCT/EP2019/065037 priority patent/WO2019238586A1/fr
Priority to CA3103036A priority patent/CA3103036C/fr
Publication of EP3581508A1 publication Critical patent/EP3581508A1/fr
Application granted granted Critical
Publication of EP3581508B1 publication Critical patent/EP3581508B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0025—Removing or cutting binding material, e.g. straps or bands

Definitions

  • the invention relates to a severing device for strapping, with a movable pressure element, furthermore with a foot with a pushing edge for the strapping that can be fixed between the foot and the pressure element, and with a cutting blade for severing the fixed strapping.
  • Cutting devices for strapping are widely used to make strapped goods accessible.
  • such separating devices can be a pair of scissors that have a movable and a fixed blade.
  • a clamp is usually provided to hold the severed strip. This is necessary to the extent that such severed strips often "pop open” at considerable speed and can thereby cause damage or, in the worst case, even injuries to operating personnel.
  • Typical examples of such devices for severing a strip of strapping tape are disclosed in US Pat EP 1 495 978 B1 described.
  • a battery-operated tape cutting device is used. This has a pressure device that can be moved into contact with the strapping. In this way, the band can be fixed against a foot. While the pressure device fixes the tape, an additional cutting blade cuts the tape on a pushing edge. This has basically proven itself.
  • the known cutting devices for strapping are associated with the disadvantage that, in particular, steel straps with a large material thickness, such as those used for wrapping and holding together metal band coils, can practically not be cut or with such strapping it cannot be ensured that the respective severed end does not pop open in an uncontrolled manner despite provided clamping devices.
  • the invention is based on the technical problem of providing such a severing device for strapping tapes that safely and reliably prevents the severed strapping tape from jumping open and securely holds the severed end of the strapping tape.
  • a generic severing device for strapping is within the scope of the invention characterized in that the pressure element is designed as a punch which at least partially penetrates the strapping band.
  • the pressure element in contrast to the prior art according to the EP 3 013 538 B1 not only that the strapping is fixed between the foot and the pressure element. Rather, the pressure element penetrates as a punch more or less into the strapping and thereby ensures a pronounced punching in the strapping. As a result of this punching and a punch produced by the punch in the strapping band, the severed end of the strapping band is practically not held in place by frictional forces. Rather, the punch penetrating completely or partially into the strapping ensures that the severed end of the strapping is held in place in the manner of a claw with the aid of the punch. In this way, the previously mentioned pre-tensioning in such strapping tapes in the strapped state can be controlled, which are values of 50 kN and even more. This is expressly not possible with the separation devices made available so far.
  • the cutting device according to the invention for strapping bands opens up the option of being able to cut thick and high-strength strapping bands (made of steel) for the first time.
  • Such so-called high-performance belts have tensile strengths of 1,200 N and more, for example.
  • breaking loads of more than 50,000 N or 50 kN and even up to 57 kN are observed for high-performance belts that are consequently equipped with a material thickness greater than that of conventional steel belts, for example 1.4 mm and more.
  • special requirements are placed on separating devices that are not met by the separating devices known in the prior art , however, can be cut properly and safely for the first time using the solution according to the invention.
  • the design is also made such that the foot has a receptacle for the punch.
  • the punch when it penetrates the strapping band, the punch can overall form the previously mentioned punched item which, either alone or together with the punch, escapes into the receptacle in the foot when it is formed.
  • the receptacle together with the punch and also the die cut into the receptacle can provide an additional hold for the severed end of the strapping band. This reliably prevents the severed strapping band and, in particular, steel band from jumping open, and any damage or even health hazards for operating personnel can be reliably prevented.
  • the punch can have very different shapes and cross-sectional designs.
  • the punch has a polygonal cross section. Trapezoidal, square, hexagonal, octagonal or other polygonal shapes can be implemented and realized here. It is also conceivable to make the punch oval or round in cross section. In principle, combinations are also conceivable.
  • a design of the punch that has a triangular cross-section has proven particularly advantageous. Because this allows any expansion forces of the strapping to be cut to be absorbed particularly well. In fact, such expansion forces generally act along the axis of symmetry of the relevant triangle and are thereby over the respective legs of the Triangle introduced evenly into the punch, which in turn is not excessively stressed in this way.
  • the punch also has a nose protruding in the pressing direction and an adjoining stop shoulder. Because the nose of the punch protrudes, it ensures that the nose penetrates the strapping and can also penetrate it. As a rule, the nose is located at the tip of the strapping tape, which is triangular in cross-section, so that the tip can penetrate the strapping tape particularly easily and effectively and cut it, as it were, in the area of the tip. At the same time, the stop shoulder adjoining the protruding nose ensures that the die-cut that is formed in this way in the strapping band is bent with respect to a band surface.
  • the die-cut is still connected to the strapping on its base side opposite the tip of the triangle.
  • the base side of the triangular die cut can be bent with respect to the surface of the tape, with the help of the stop shoulder.
  • the die-cut formed in this way is thus designed as a whole in a triangular manner following the shape of the punch and is connected to the strapping band with the base side of the triangle.
  • the die-cut is bent in relation to the surface of the tape and as a result dips more or less pronounced into the receptacle in the foot.
  • the punch, the die cut and the receptacle in the foot together ensure that the severed end of the strapping is properly held and is only released by the severing device when the punch moves back into its original position.
  • the punch is generally arranged approximately centrally in comparison to the foot.
  • the cutting blade is usually an upper knife which interacts with a foot edge as a lower knife. This means that one edge of the foot, the foot edge, functions as a lower knife, while the cutting blade takes on the function of the upper knife in the scissors or metal scissors realized in this way.
  • cutting angles can be introduced into the strapping band to be severed, which are basically designed to be variable and, for example, are or can amount to values in the range from 1 ° to 50 ° based on the transverse direction of the band, for example.
  • the punch and the cutting blade are each for the most part moved vertically compared to the foot or are designed to be accordingly vertically movable compared to the foot. For this reason, a common punch can be provided to act on both the punch and the cutting knife.
  • the design is usually made so that the punch is equipped with a protrusion with respect to the cutting knife and, taking this protrusion into account, is connected to the common punch together with the cutting knife.
  • the protrusion ensures that the punch first penetrates completely or partially into the strapping band and in this way holds the end of the strapping band to be severed subsequently. Only when the punch has penetrated the strapping completely or partially does the cutting knife, as an upper knife, in conjunction with the bottom edge as a lower knife, ensure the desired cutting process and the severing of the strapping.
  • the punch and / or the cutting knife are generally mounted on a common flange.
  • the flange also takes care of theirs Linear guide when applying the stamp.
  • the punch and the cutting knife are oriented opposite one another in comparison to the flange in the middle.
  • the punch or the cutting knife can be mounted floating relative to the flange.
  • the flange as a whole can also have a floating mounting relative to a machine frame.
  • the punch penetrates the strapping and due to its tensile stress, overall reduced shear forces act on the punch.
  • it is mainly the punch that is floating relative to the flange.
  • one or more springs are generally provided which, on the one hand, provide a perfect linear guidance of the punch with the aid of the flange, but on the other hand allow a lateral movement of the punch.
  • a tape detection device is provided for detecting the position in relation to the strapping to be cut. That is to say, with the aid of the strap detection device, the previously described cutting device according to the invention is aligned with respect to the strapping to be cut.
  • a position detection and tape detection device is particularly recommended for the case that the cutting device works in a stationary manner and is connected, for example, to a robot arm or generally to a three-dimensionally movable control device.
  • a tape detection device is of course not absolutely necessary because the positioning of the cutting device is carried out by an operator.
  • the tape detection device is usually designed as a laser measuring device. With the aid of the laser measuring device, for example, the surface of a metal strip coil strapped using a steel strip is scanned. The strapping appears on this surface as a rectangular elevation, which can be determined via the laser measuring device and at this point by respective distance measurements. This allows the position of the strapping to be determined and the cutting device to be precisely aligned.
  • the separating device is usually pushed down with the foot under the tensioned strapping with the help of the three-dimensional adjusting device so that the pushing edge implemented on the foot ensures that the strapping can be lifted from the strapped material and the foot can be pushed under. Only then does the separation process already described in detail take place.
  • a cutting device for strapping is made available, which works particularly safely and reliably.
  • This also and in particular applies to strapping or steel straps which are under particularly high pretensioning during the cutting process, as is observed, for example, with steel straps used for strapping metal strip coils can be used.
  • the cutting device implemented according to the invention ensures that the severed end of the strapping band in question cannot jump open in an uncontrolled manner and cause damage or injury to operating personnel. This is not possible with previously known separating devices used in practice. This is where the main advantages can be seen.
  • a separating device is shown, with the help of which in the Fig. 1 indicated straps 1 can be severed.
  • the straps 1 are mostly steel straps.
  • the steel bands or strapping bands 1 in question are looped around metal band coils (not shown in more detail) and are to be severed for further processing of the metal band coils.
  • the Fig. 1 Separating device shown using a foot 2 with pushing edge 3 in the in Fig. 1 is pushed under the tensioned strap 1 by a double arrow shown direction.
  • the in the Fig. 1 Separating device shown in the overview to a here in the Fig. 1 indicated and three-dimensional actuating device 5 be connected.
  • the actuating device 5 is advantageously a robot arm. Of course, this only applies as an example.
  • the actuating device 5 can in principle be dispensed with in the event that the separating device is designed to be mobile and is acted upon by an operator.
  • the one in the Fig. 1 The actuating device 5 shown ensures that the separating device, which is to be described in detail below, is pushed with its foot 2 under the tensioned strapping 1.
  • the pusher edge 3 inclined in this connection ensures that this process can be carried out and that the tensioned strapping 1 is increasingly lifted from the strapped material.
  • the pushing edge 3 may be in the against a horizontal Fig. 1 have indicated inclination corresponding to an associated angle of inclination ⁇ of approximately 10 °.
  • angles of inclination ⁇ between 5 ° and 20 ° are observed.
  • the angle of inclination ⁇ also specifies a cutting angle when the strapping tape 1 is severed, which is still to be described below.
  • the detailed representations in the Figures 2A to 2D now show the foot 2 with the pushing edge 3 and additionally a pressure element 4 and a cutting blade 5.
  • the strapping 1 can be fixed between the foot 2 and the pressure element 4. This fixation ensures during a cutting process with the aid of the cutting blade 5 that the tensioned strapping 1 does not spring open after severing and that the end of the strapping 1 severed by the cutting blade 5 is held.
  • the cutting blade 5 for severing the fixed strapping 1 functions as an upper knife during this process.
  • the movable cutting blade 5 and the foot edge 6 define a total of scissors 5, 6 or metal scissors 5, 6 if the strapping 1 is a steel band acts.
  • Both the cutting blade 5 and the pressure element 4 are for the most part designed to be movable vertically in comparison to the foot 2, as shown by a double arrow in FIG Figure 2B indicates.
  • a common and merely indicated punch 7 provides for the corresponding travel movement of the pressing element 4 and also of the cutting blade 5.
  • the punch 7 can also be a cylinder.
  • the stamp 7 performs the in the Figure 2B
  • the illustrated traversing movements are vertical compared to the foot 2.
  • a hydraulic drive may be used to drive the ram 7 or a cylinder at this point.
  • the pressing element 4 is designed as a punch which at least partially penetrates the strapping 1.
  • the punch 4 is one which is triangular in cross section. Consequently, the foot 2 also has a corresponding receptacle 8 in the foot 2, which is also triangular in shape and is adapted to the shape of the triangular punch 4.
  • the punch 4 as a whole can penetrate the strapping band 1 or at least partially penetrate it and dip into the receptacle 8 in the foot 2.
  • the punch 4 is on the foot side with a in the pressing direction or the direction of travel of the punch 4 according to the double arrow in FIG Figure 2B protruding nose 9 equipped. It also joins the protruding nose 9 to a stop shoulder 10 that is set back.
  • the protruding nose 9 is provided in the area of a tip of the triangle of the triangular cross-sectional shape of the punch 4.
  • the stop shoulder 10 extends in the direction of a base side of the triangle in question opposite the tip.
  • the penetrating into the strapping 1 hole punch 4 forms a in the Fig. 3 indicated die cut 11 in the strapping 1.
  • This die cut 11 in the strapping 1 is produced in that the punch 4 with its protruding nose 9 cuts through the strapping 1. Since the stop shoulder 10 adjoining the protruding nose 9 springs back with respect to the nose 9, the die cut 11 is connected to the strapping 1 unchanged with the base side of the triangle. In this way, the stop shoulder 10 adjoining the projecting nose 9 bends the die cut 11 with respect to a band surface of the strapping band 1.
  • the bent die cut 11 can more or less dip into the receptacle 8 in the foot 2.
  • the punch 4, the bent punch 11 and the receptacle 8 in the foot 2 taken together, ensure that the subsequently severed end of the strapping 1 is securely held by the severing device. This is because the punch 4 penetrating into the strapping band 1 functions as it were like a claw dipping into the strapping band 1 and ensures a secure hold.
  • the punch 4 is arranged approximately centrally in comparison to the foot 2. The same applies to the receptacle 8 in the foot 2, which cooperates with the punch 4.
  • the detailed representations in FIG Figures 2A to 2D that the punch 4 is connected to the common punch 7 with a protrusion Ü opposite the cutting knife 5.
  • This protrusion Ü is dimensioned such that when the punch 7 is acted upon, the punch 4 first penetrates the strapping 1 and the bent die cut 11 as shown in FIG Fig. 3 forms.
  • the end of the strapping 1 which is still to be severed subsequently is securely held. Only after this fixing of the end of the strapping 1 to be severed does the cutting blade 5 ensure that the strapping 1 is severed.
  • the cutting blade 5 and the foot edge 6 define the cutting knife 5, 6 already described above.
  • a flange 14 for the common mounting of the punch 4 and the cutting knife 5 ensures their proper linear guidance.
  • a tape detection device 12 can also be provided, which is shown in FIG Fig. 1 is only indicated.
  • the tape detection device 12 works in the present case as a laser measuring device, as has already been described in the introduction.
  • a common control unit 13 is provided, which processes corresponding measured values from the tape detection device 12 and activates the actuating device S accordingly so that it can move the foot 2 to cut the strapping 1 and thus the cutting device as a whole.
  • a pneumatic motor or an electric drive can be used to drive the stamp 7. If an electric drive is used, it can be operated with mains voltage or alternating voltage, for example. Mobile use is also possible with a battery-operated electric drive possible and is covered by the invention. Consequently, the separating device can be designed to be mobile as a hand-held device or to be stationary in connection with the actuating device S described and operating in three dimensions. Both are expressly possible.
  • the punch 4 and the cutting knife 5 are mounted on the common flange 14.
  • the flange 14 ensures the desired linear guidance of both the punch 4 and the cutting knife 5.
  • a floating mounting can be implemented in this context.
  • the procedure is such that the flange 14 allows a lateral movement of the punch 4 by means of springs attached on both sides and not shown in detail, that is, in the longitudinal direction of the strapping band 1 cushioned. As a result, any shear forces acting on the punch 4 are reduced.

Claims (15)

  1. Dispositif de sectionnement pour bandes de cerclage (1) avec un élément de pression (4) mobile, avec en plus un pied (2) avec un bord de poussée (3) pour la bande de cerclage (1) fixable entre le pied (2) et l'élément de pression (4) et avec une lame de coupe (5) pour sectionner la bande de cerclage (1) fixée, caractérisé en ce que l'élément de poussée (4) est constitué dans le poinçon de perforation (4) pénétrant au moins en partie dans la bande de cerclage (1).
  2. Dispositif selon la revendication 1, caractérisé en ce que le pied (2) comporte un logement (8) pour le poinçon de perforation (4).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le poinçon de perforation (4) est constitué en section de forme polygonale, en particulier triangulaire, ovale ou ronde.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le poinçon de perforation (4) est constitué avec un taquet (9) en saillie dans la direction de la pression et un épaulement de butée (10) s'y raccordant.
  5. Dispositif selon la revendication 4, caractérisé en ce que le taquet (9) en saillie pénètre dans la bande de cerclage (1) et l'épaulement (10) s'y raccordant plie une pièce emboutie (11) se formant de ce fait par rapport à une surface de bande.
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le poinçon de perforation (4) est disposé à peu près au centre du pied (2).
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la lame de coupe (5) en tant que tranchant supérieur agit conjointement avec un bord de pied (6) sur le pied (2) en tant que tranchant inférieur.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le poinçon de perforation (4) et la lame de coupe (5) sont constitués respectivement en majeure partie mobiles de façon verticale en comparaison du pied (2).
  9. Dispositif selon la revendication 8, caractérisé en ce qu'un poinçon commun (7) est prévu pour solliciter le poinçon de perforation (4) et la lame de coupe (5).
  10. Dispositif selon la revendication 9, caractérisé en ce que le poinçon de perforation (4) est raccordé par rapport à la lame de coupe (5) avec une saillie (Ü) au poinçon commun (7).
  11. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le poinçon de perforation (4) et/ou la lame de coupe (5) sont logés de préférence de façon flottante sur une bride (14) commune.
  12. Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce qu'un dispositif d'identification de bande (12) est prévu pour la saisie de position par rapport à la bande de cerclage (1) à sectionner.
  13. Dispositif selon la revendication 12, caractérisé en ce que le dispositif d'identification de bande (12) est constitué comme un dispositif de mesure au laser.
  14. Dispositif selon l'une quelconque des revendications 9 ou 10, caractérisé en ce qu'un entraînement pour le poinçon (7) fonctionnant hydrauliquement et/ou pneumatiquement et/ou avec une tension de réseau ou une batterie est prévu.
  15. Dispositif selon l'une quelconque des revendications 1 à 14, caractérisé en ce qu'il est conçu mobile ou fixe.
EP18177354.0A 2018-06-12 2018-06-12 Dispositif de séparation pour bandes de cerclage Active EP3581508B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES18177354T ES2850724T3 (es) 2018-06-12 2018-06-12 Dispositivo de separación para cintas de flejado
EP18177354.0A EP3581508B1 (fr) 2018-06-12 2018-06-12 Dispositif de séparation pour bandes de cerclage
PCT/EP2019/065037 WO2019238586A1 (fr) 2018-06-12 2019-06-07 Dispositif de séparation pour des bandes de cerclage
CA3103036A CA3103036C (fr) 2018-06-12 2019-06-07 Dispositif de separation pour des bandes de cerclage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18177354.0A EP3581508B1 (fr) 2018-06-12 2018-06-12 Dispositif de séparation pour bandes de cerclage

Publications (2)

Publication Number Publication Date
EP3581508A1 EP3581508A1 (fr) 2019-12-18
EP3581508B1 true EP3581508B1 (fr) 2020-11-04

Family

ID=62620782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18177354.0A Active EP3581508B1 (fr) 2018-06-12 2018-06-12 Dispositif de séparation pour bandes de cerclage

Country Status (4)

Country Link
EP (1) EP3581508B1 (fr)
CA (1) CA3103036C (fr)
ES (1) ES2850724T3 (fr)
WO (1) WO2019238586A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633587B1 (fr) * 1988-06-29 1991-03-29 Vega Automation Procede et dispositif pour rompre et enlever un lien entourant un paquet. procede et appareil d'alimentation en decoupes utilisant ce procede et ce dispositif
NL1023884C2 (nl) 2003-07-10 2004-06-11 Tebulo Ind Automation B V Inrichting voor het doorknippen van een bindstrip.
CA2664485C (fr) 2006-10-27 2015-07-14 Busse/Sji Corporation Systeme d'enlevement de bandes de cerclage
US8160748B2 (en) 2008-02-26 2012-04-17 Automatic Handling International Method and apparatus for removing wires from a bale
JP5891574B2 (ja) * 2012-03-31 2016-03-23 日新製鋼株式会社 鋼板コイルの結束バンド処理方法
US9630265B2 (en) 2013-06-28 2017-04-25 Signode Industrial Group Llc Powered two-stage strap cutter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3581508A1 (fr) 2019-12-18
ES2850724T3 (es) 2021-08-31
CA3103036A1 (fr) 2019-12-19
WO2019238586A1 (fr) 2019-12-19
CA3103036C (fr) 2024-02-13

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