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EP0014699B1 - Feed and transfer device of a knotting apparatus with a main drive shaft - Google Patents

Feed and transfer device of a knotting apparatus with a main drive shaft Download PDF

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Publication number
EP0014699B1
EP0014699B1 EP79900129A EP79900129A EP0014699B1 EP 0014699 B1 EP0014699 B1 EP 0014699B1 EP 79900129 A EP79900129 A EP 79900129A EP 79900129 A EP79900129 A EP 79900129A EP 0014699 B1 EP0014699 B1 EP 0014699B1
Authority
EP
European Patent Office
Prior art keywords
cord
feed
driver
knotter
run
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.)
Expired
Application number
EP79900129A
Other languages
German (de)
French (fr)
Other versions
EP0014699A1 (en
Inventor
Ulrich Hegnauer
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.)
PETER BORN AG
Original Assignee
PETER BORN AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PETER BORN AG filed Critical PETER BORN AG
Publication of EP0014699A1 publication Critical patent/EP0014699A1/en
Application granted granted Critical
Publication of EP0014699B1 publication Critical patent/EP0014699B1/en
Expired 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
    • B65B13/24—Securing ends of binding material
    • B65B13/26—Securing ends of binding material by knotting

Definitions

  • the invention relates to a cord feed and transfer device to a knotting apparatus with a main shaft for driving it, the binding cord being gripped by one of the grippers of the knotting apparatus and the object to be bound being moved relative to the latter parallel to the strapping plane.
  • a knotting machine in which the cord is made available for takeover by a feed mechanism by means of a clamp, which clamp grips the cut end of the cord, tightens perpendicular to the feed plane and holds during the feed movement, whereby the line feed by means of a linearly guided threading needle, which is advanced straight from the starting position by means of a telescopic guide system, and the tensioned end of the line is grasped by the tip of the needle, which is angled transversely to the line axis, and is brought into a transfer position, forming a loop, into a knotting device, which the loop takes over and processed as double thread.
  • the binding cord is partly led around the object to be bound when tying packages and bundles by means of an angle bracket which interacts with a knotting mechanism.
  • the angle bracket is too bulky to bind larger objects, particularly palletized goods.
  • This disadvantage is to be eliminated by the cord feeding and transfer device according to the invention.
  • This device is characterized in that a crank is mounted on the main shaft, which is connected to a crank rod which is operatively connected to a rocker arm, the swinging end of which is articulatedly connected to a bumper, which carries a ram head at its free end to which a cord driver protruding at right angles to the plane of motion of the rocking lever is attached, which is moved when the rocking lever is pivoted with the cord in the grippers of the knotting apparatus, and that a stylus guided in its longitudinal direction is provided, at the end of which a eyelet projecting on one side is attached , through which the cord coming from the binding object is guided, so that it enters the projecting part of the eyelet and is caught there by the driver in the innermost prick position.
  • the illustrated cord feeding and transfer device is driven by a main shaft 5 in synchronism with a knotting apparatus 4 (FIG. 1).
  • a Kurbei6a is rotatably mounted, which is connected via a crank pin 6b to a connecting rod 7a.
  • This is fastened by a pivot pin 7b to a rocker arm 8a, which is pivotable about a rocking axis 8b.
  • the swinging end of the rocker arm 8a is connected in an articulated manner to a bumper 9, which is guided in a pivotable slide bearing 14.
  • the free end of the bumper 9 carries a plunger head 10 (FIGS. 1 and 2). This has a projection on the side facing away from the oscillation axis 8b, to which a cord driver 11 protruding at right angles to the plane of movement of the oscillation lever 8a is attached.
  • a cord feed stylus 3 is displaceably guided in its longitudinal direction, one end of which, in the inserted position, lies close to and below the retracted plunger head 10.
  • This end of the prick is provided with an eyelet 12 projecting on one side (FIG. 2).
  • the cord part 2 2 wrapping around the binding object 1 enters the projecting side of the eyelet 12 and leads from the other side (cord 18) of the eyelet to the tensioning device 20.
  • the cord end is held on a gripper 17 in the knotting apparatus 4.
  • the driver 11 at the end of the bumper 9 grasps the cord strand leading into the eyelet 12 and brings it to one of the gripper tongs 17 of the knotting apparatus 4. So that the cord 2 cannot be gripped by the knife 19 of the knotting apparatus 4, the cord driver 11 performs an evasive movement a curve 13, which is determined by the pivotability of the bearing 14. The stylus 3 remains in its inserted position until the driver 11 has passed the cord 2 to the knotting apparatus 4.
  • the cam movement 13 can be performed by another mechanical device, e.g. be generated by a control cam with a feeler roller instead of the pivotable bearing 14.
  • the cord feed stylus 3 can be moved by mechanical means which are in operative connection with the main shaft 5 or by hand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Sewing Machines And Sewing (AREA)
  • Binders And Loading Units For Sheaves (AREA)

Abstract

This device comprises an enchased punch (3), provided with a ring (12) at the inner end thereof, said ring having a projecting face. The knotting thread (18) distributed by a tensing device (20), goes through the ring (12) and is wound around the parcel to be tied (1) by means of its part (2) outside the ring; at the end, this tying thread is seized by a hook (17) of the knotting apparatus (4). A guide (11) seizes the thread in the ring and transfers it to a hook (17) in the knotting apparatus (4). The guide (11) is fixed at one end to a link which is set in motion through a rod (7a) and a lever (9) attached to a transmission shaft (5).

Description

Die Erfindung betrifft eine Schnurzuführ- und Uebergabevorrichtung zu einem Knüpfapparat mit einer Hauptwelle zu dessen Antrieb, wobei die Bindeschnur von einem der Greifer des Knüpfapparats erfasst und das zu bindende Objekt relativ zu diesem parallel zur Umschnürungsebene bewegt wird.The invention relates to a cord feed and transfer device to a knotting apparatus with a main shaft for driving it, the binding cord being gripped by one of the grippers of the knotting apparatus and the object to be bound being moved relative to the latter parallel to the strapping plane.

Aus der US-A-2'276'919 ist eine Knüpfmaschine bekannt, bei welcher die Bereitstellung der Schnur zur Uebernahme durch einen Zuführmechanismus durch eine Klemmzange erfolgt, welche Klemmzange das abgeschnittene Schnurende ergreift, senkrecht zur Zuführebene spannt und während der Zuführbewegung festhält, wobei die Schnurzuführung durch eine linear geführte Einfädelnadel, die mittels eines teleskopartigen Führungssystems geradlinig aus der Ausgangsstellung vorgeschoben wird, und wobei das gespannte Schnurende durch die quer zur Schnurachse abgewinkelte Spitze der Nadel erfasst und unter Bildung einer Schleife in eine Uebergabeposition in eine Knüpfeinrichtung gebracht wird, welche die Schleife übernimmt und als Doppetfaden weiterverarbeitet.From US-A-2'276'919 a knotting machine is known, in which the cord is made available for takeover by a feed mechanism by means of a clamp, which clamp grips the cut end of the cord, tightens perpendicular to the feed plane and holds during the feed movement, whereby the line feed by means of a linearly guided threading needle, which is advanced straight from the starting position by means of a telescopic guide system, and the tensioned end of the line is grasped by the tip of the needle, which is angled transversely to the line axis, and is brought into a transfer position, forming a loop, into a knotting device, which the loop takes over and processed as double thread.

In bekannter Weise (siehe CH-A-438'143 und CH-A-487'020 der gleichen Inhaberin) wird die Bindeschnur beim Umschnüren von Paketen und Bündeln mittels eines mit einem Knüpfmechanismus zusammenwirkenden Winkelbügels teilweise um den zu bindenden Gegenstand geführt. Zum Binden von grössern Objekten, insbesondere von palettisierten Gütern, ist der Winkelbügel jedoch zu sperrig.In a known manner (see CH-A-438'143 and CH-A-487'020 from the same owner), the binding cord is partly led around the object to be bound when tying packages and bundles by means of an angle bracket which interacts with a knotting mechanism. The angle bracket is too bulky to bind larger objects, particularly palletized goods.

Dieser Nachteil soll durch die Schnurzuführ-und Uebergabevorrichtung gemäss der Erfindung beseitigt werden. Diese Vorrichtung ist dadurch gekennzeichnet, dass auf die Hauptwelle eine Kurbel montiert ist, welche mit einer Kurbelstange verbunden ist, die in Wirkverbindung mit einem Schwinghebel steht, dessen schwingendes Ende gelenkartig mit einer Stossstange verbunden ist, die an ihrem freien Ende einen Stösaelkopf trägt, an dem ein zur Bewegungsebene des Schwinghebels rechtwinklig vorstehender Schnur-Mitnehmer angebracht ist, der beim Schwenken des Schwinghebels mit der Schnur iu den Greifern des Knüpfapparats bewegt wird, und dass ein in seiner Längsrichtung geführter Stichel vorgesehen ist, an dessen Ende eine einseitig vorstehende Oese angebracht ist, durch welche die vom Bindeobjekt kommende Schnur geführt ist, so dass sie am vorstehenden Teil der Oese eintritt und dort an dieser in der innersten Stichelstellung vom Mitnehmer erfasst wird.This disadvantage is to be eliminated by the cord feeding and transfer device according to the invention. This device is characterized in that a crank is mounted on the main shaft, which is connected to a crank rod which is operatively connected to a rocker arm, the swinging end of which is articulatedly connected to a bumper, which carries a ram head at its free end to which a cord driver protruding at right angles to the plane of motion of the rocking lever is attached, which is moved when the rocking lever is pivoted with the cord in the grippers of the knotting apparatus, and that a stylus guided in its longitudinal direction is provided, at the end of which a eyelet projecting on one side is attached , through which the cord coming from the binding object is guided, so that it enters the projecting part of the eyelet and is caught there by the driver in the innermost prick position.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstands dargestellt. Es zeigen :

  • Fig. 1 eine schematische Ansicht der Vorrichtung, und Fig. 2 einen Schnitt nach der Linie II-II In Fig. 1.
In the drawing, an embodiment of the subject of the invention is shown. Show it :
  • Fig. 1 is a schematic view of the device, and Fig. 2 is a section along the line II-II in Fig. 1st

Die dargestellte Schnurzuführ- und Uebergabevorrichtung wird durch eine Hauptwlle 5 synchron zu einem Knüpfapparat4 angetrieben (Fig.1). An der Hauptwelle5 ist eine Kurbei6a drehfest montiert, welche über einen Kurbelzapfen6b mit einer Pleuelstange 7a verbunden ist. Diese ist durch einen Gelenkzapfen 7b an einem Schwinghebel8a befestigt, welcher um eine Schwingachse 8b schwenkbar ist. Das schwingende Ende des Schwinghebels 8a ist gelenkartig mit einer Stossstange 9 verbunden, welche in einem schwenkbaren Gleitlager 14 geführt ist. Das freie Ende der Stossstange 9 trägt einen Stösselkopf 10 (Fig. 1 und 2). Dieser weist auf der der Schwingachse 8b abgekehrten Seite einen Vorsprung auf, an dem ein zur Bewegungsebene des Schwinghebels 8a rechtwinklig vorstehender Schnurmitnehmer 11 angebracht ist.The illustrated cord feeding and transfer device is driven by a main shaft 5 in synchronism with a knotting apparatus 4 (FIG. 1). On the main shaft 5 a Kurbei6a is rotatably mounted, which is connected via a crank pin 6b to a connecting rod 7a. This is fastened by a pivot pin 7b to a rocker arm 8a, which is pivotable about a rocking axis 8b. The swinging end of the rocker arm 8a is connected in an articulated manner to a bumper 9, which is guided in a pivotable slide bearing 14. The free end of the bumper 9 carries a plunger head 10 (FIGS. 1 and 2). This has a projection on the side facing away from the oscillation axis 8b, to which a cord driver 11 protruding at right angles to the plane of movement of the oscillation lever 8a is attached.

Rechtwinklig zur Hauptwelle 5 und parallel zur Ebene des Schwinghebels 8a ist ein Schnurzuführstichel3 in seiner Längsrichtung verschiebbar geführt, dessen eines Ende in der eingeschobenen Lage nahe vor und unter dem zurückgezogenen Stösselkopf 10 liegt. Dieses Stichelende ist mit einer einseitig vorstehenden Oese 12 versehen (Fig. 2). Der das Bindeobjekt 1 umschlingende Schnurteil2 2 tritt an der vorstehenden Seite der Oese 12 ein und führt von der andern Seite (Schnur 18) der Oese zur Spannvorrichtung 20. Das Schnurende wird an einer Greiferzange 17 im Knüpfapparat 4 gehalten.At right angles to the main shaft 5 and parallel to the plane of the rocker arm 8a, a cord feed stylus 3 is displaceably guided in its longitudinal direction, one end of which, in the inserted position, lies close to and below the retracted plunger head 10. This end of the prick is provided with an eyelet 12 projecting on one side (FIG. 2). The cord part 2 2 wrapping around the binding object 1 enters the projecting side of the eyelet 12 and leads from the other side (cord 18) of the eyelet to the tensioning device 20. The cord end is held on a gripper 17 in the knotting apparatus 4.

Der Mitnehmer 11 am Ende der Stossstange 9 ergreift den in die Oese 12 führenden Schnurstrang und bringt ihn zu einer der Greiferzangen 17 des Knüpfapparats 4. Damit die Schnur 2 nicht vom Messer 19 des Knüpfapparats 4 erfasst werden kann, führt der Schnurmitnehmer 11 eine Ausweichbewegung in einer Kurve 13 aus, welche durch die Schwenkbarkeit des Lagers 14 bestimmt ist. Der Stichel 3 bleibt so lange in seiner eingeschobenen Lage, bis der Mitnehmer 11 die Schnur 2 dem Knüpfapparat 4 übergeben hat.The driver 11 at the end of the bumper 9 grasps the cord strand leading into the eyelet 12 and brings it to one of the gripper tongs 17 of the knotting apparatus 4. So that the cord 2 cannot be gripped by the knife 19 of the knotting apparatus 4, the cord driver 11 performs an evasive movement a curve 13, which is determined by the pivotability of the bearing 14. The stylus 3 remains in its inserted position until the driver 11 has passed the cord 2 to the knotting apparatus 4.

Die Kurvenbewegung 13 kann durch eine andere mechanische Vorrichtung, z.B. durch eine Steuerkurve mit Tastrolle, anstelle des schwenkbaren Lagers 14 erzeugt werden.The cam movement 13 can be performed by another mechanical device, e.g. be generated by a control cam with a feeler roller instead of the pivotable bearing 14.

Der Schnurzuführstichel 3 kann durch mechanische Mittel, die in Wirkverbindung mit der Hauptwelle 5 stehen oder von Hand verschoben werden.The cord feed stylus 3 can be moved by mechanical means which are in operative connection with the main shaft 5 or by hand.

Der Knüpfvorgang ist in den erwähnten Patentschriften CH-A-438'143 und CH-A-487'020 beschrieben und daraus ersichtlich.The knotting process is described in the mentioned patents CH-A-438'143 and CH-A-487'020 and can be seen therefrom.

Claims (3)

1. A cord feed and delivery device supplying a knotter with a main shaft (5) used for driving the knotter, where the cord (18) is seized by one of the grippers (17) of the knotter (4) and where the item (1) to be tied up is moved, in relation to the latter, in parallel with the binding plane, characterized in that to the main shaft (5) is mounted a crank (6a) which is connected to a connecting rod (7a) that is linked in active connection with a rocking lever (8a) whose rocking end is hinged to a push rod (9) that carries at its free end a push rod head (10) to which is attached, perpendicular . to the plane of motion of the rocking lever (8a), a projecting cord driver (11) that is moved, when the rocking lever (8a) is pivoted, with the cord (2) to the grippers (17) of the knotter (4), and in that a stitcher (3) run in its longitudinal direction is provided, at the end of which is provided a unilaterally projecting eye (12) through which is run the cord (2) coming from the item (1) to be tied up, so that this cord enters the projecting part of the eye (12) and is seized there by the driver (11) in the innermost stitcher position.
2. A cord feed and delivery device according to claim 1, characterized in that the push rod (9) is run through a pivoted slide bearing (14) in such a manner that the driver (11) performs a curved motion (13).
3. A cord feed and delivery device according to claim 1, characterized in that the push rod (9) is run through a controlled curve with feeling roller in such a manner that the driver (11) performs a curved motion (13).
EP79900129A 1978-03-02 1979-01-25 Feed and transfer device of a knotting apparatus with a main drive shaft Expired EP0014699B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH224078A CH626849A5 (en) 1978-03-02 1978-03-02
CH2240/78 1978-07-03

Publications (2)

Publication Number Publication Date
EP0014699A1 EP0014699A1 (en) 1980-09-03
EP0014699B1 true EP0014699B1 (en) 1981-09-30

Family

ID=4229123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79900129A Expired EP0014699B1 (en) 1978-03-02 1979-01-25 Feed and transfer device of a knotting apparatus with a main drive shaft

Country Status (8)

Country Link
US (1) US4424992A (en)
EP (1) EP0014699B1 (en)
JP (1) JPS55500093A (en)
CH (1) CH626849A5 (en)
DE (1) DE2961106D1 (en)
NL (1) NL7900848A (en)
SU (1) SU843720A3 (en)
WO (1) WO1979000681A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH661904A5 (en) * 1984-01-24 1987-08-31 Born Ag Peter DEVICE FOR A knotting TO BE A GOOD SPIRAL BINDING AGENT.
US7669539B2 (en) 2007-07-09 2010-03-02 Cnh America, Llc. Method and apparatus for an agricultural implement seed meter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2276919A (en) * 1938-10-29 1942-03-17 Knorr Nahrmittel Ag Method of and means for tying knots
CH438143A (en) 1964-03-17 1967-06-15 Born Ag Peter Machine for tying packages or bundles
CH487020A (en) 1968-09-10 1970-03-15 Born Ag Peter Machine with a table for tying and tying packages or bundles

Also Published As

Publication number Publication date
EP0014699A1 (en) 1980-09-03
SU843720A3 (en) 1981-06-30
CH626849A5 (en) 1981-12-15
US4424992A (en) 1984-01-10
WO1979000681A1 (en) 1979-09-20
JPS55500093A (en) 1980-02-21
DE2961106D1 (en) 1981-12-10
NL7900848A (en) 1979-09-04

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