EP0711724A1 - Apparatus for separating perforated tubular web sections - Google Patents

Apparatus for separating perforated tubular web sections Download PDF

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Publication number
EP0711724A1
EP0711724A1 EP95114425A EP95114425A EP0711724A1 EP 0711724 A1 EP0711724 A1 EP 0711724A1 EP 95114425 A EP95114425 A EP 95114425A EP 95114425 A EP95114425 A EP 95114425A EP 0711724 A1 EP0711724 A1 EP 0711724A1
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EP
European Patent Office
Prior art keywords
rollers
tear
separating device
tubular
axis
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
Application number
EP95114425A
Other languages
German (de)
French (fr)
Other versions
EP0711724B1 (en
Inventor
Fritz Achelpohl
Richard Feldkämper
Friedhelm Brinkmeier
Ulrich Eckelt
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher 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.)
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Publication date
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Publication of EP0711724A1 publication Critical patent/EP0711724A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/002—Precutting and tensioning or breaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/10—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with devices for breaking partially-cut or perforated webs, e.g. bursters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/10—Methods
    • Y10T225/16—Transversely of continuously fed work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/35—Work-parting pullers [bursters]

Definitions

  • the invention relates to a separating device for separating perforated hose sections according to the preamble of claim 1.
  • Such a separation device is known for example from DE 41 13 792 A1.
  • a tubular web is moved by the preferred mechanism at a certain feed rate.
  • the tubular web runs through the tear-off device connected downstream in the conveying direction, without the rollers or rollers of the tear-off engine or the belts guided over it engaging with the tubular web.
  • the rolls or rollers of the tear-off mechanism are placed against the tubular web and driven at a higher peripheral speed than the rollers or rollers of the preferred mechanism in order to tear off the tubular section.
  • a further developed separating device for separating perforated hose sections in which the rollers or rollers arranged underneath the hose web to be separated are pressed in synchronized manner, both in the tear-off mechanism and in the preferred mechanism, to tear off the perforated hose sections, the rollers or rollers are each translatable in a direction of movement perpendicular to the tubular path.
  • the constructive realization of this separating device is comparatively complex due to the translatory guidance of the rollers or rollers.
  • the object of the invention is to develop a generic separating device in such a way that, on the one hand, it is of simple construction and, on the other hand, it enables safe and damage-free separation of hose sections from a perforated hose web.
  • this object is achieved according to the invention in that the opposite rollers or rollers are each mounted in swivel arms, each of which can be swiveled about swivel axes, which are opposite each other in the transport direction of the tubular web so that the swivel arms can be swung open in the opposite direction.
  • This measure makes it possible in a simple manner that in the event that a perforated section is torn off, the opposing rollers or rollers come into contact simultaneously. It is not necessary here to guide a set of rollers or rollers as a whole in translation, but only a simple pivoting movement is necessary. This particularly simple solution is possible because the pivoting movements of the pivot arms in which the rollers or rollers are mounted are in opposite directions.
  • a pull rod is articulated on one of the swivel arms arranged above the transport plane of the tubular web and a push rod is articulated on one of the swivel arms arranged below the transport plane of the tubular web Swivel axes towards and away from each other are pivotable.
  • the rollers or rollers of the opposing rollers or rollers arranged above the transport plane of the tubular web are mounted on axles fixed to the end shield in the preferred mechanism .
  • the rollers or rollers arranged below the transport plane of the tubular web are mounted on axles which are connected to plates which are displaceably guided in the end shields, a piston-cylinder unit acting on a pivot point of the displaceable plates.
  • a roll or roller is on a flat one Axle mounted, while two rollers or rollers are mounted on axles, which are mounted in a rocker pivotally suspended in the plates.
  • rollers or rollers makes it possible for all three rollers or rollers lying next to one another to lie against the counter-pressure rollers or rollers at the same time when the piston-cylinder unit is used, since unevenness is immediately compensated for here by pivoting about the respective pivot points.
  • control movement for the pull rod or push rod of the tear-off mechanism is also transmitted to the displaceably guided rollers or rollers in the preferred mechanism via a linkage arrangement, the linkage preferably engaging on one side of the rocker.
  • a push rod of this transmission linkage can be coupled to the other parts of the linkage via a spring. This prevents the roller or roller loaded with the linkage from being abruptly pressed on. Rather, a damping of the roller or roller against the counter-pressure roller or roller is made possible by the spring.
  • the end shields of the tear-off unit and the preferred unit arranged above the transport plane of the tubular track can be pivoted about an axis, the pivot axis coinciding with the axis of rotation of each of the deflection rollers for the conveyor belt which, as seen in the conveying direction of the tubular track, lies at the rear.
  • This swiveling in a direction running counter to the conveying direction makes it possible to swivel up the conveyor belts lying above the transport plane when, for example, a foreign object, such as an accidentally left screwdriver or the like, is conveyed between the belts. Swinging open prevents the adjacent rolls or rollers from being destroyed.
  • the conveyor belts of the tear-off unit and the holding unit can be driven, in particular in the last-explained embodiment of the invention, via a motor-driven toothed belt, the toothed belt being guided in each case via toothed belt pulleys which are arranged in a rotationally fixed manner on the axes of deflection rollers and wherein the toothed belt pulleys, which are above the tubular track are arranged, are arranged on the axis about which the end shields are pivotable.
  • a separating device 10 for separating perforated tube sections from a tubular web consists of a tear-off mechanism 12 and a preferred mechanism 14.
  • the tear-off mechanism 12 is arranged in the conveying direction (arrow a) behind the preferred mechanism 14, as shown in FIG Fig. 1 can be seen.
  • the tear-off mechanism 12 and the preferred mechanism each have rollers or rollers 16, 18 and 20, 22 arranged on both sides of the tubular web, over which belts 24, 26 and 28, 30 run in a known manner.
  • the conveyor belt 24 is guided over deflection rollers 32 and 34, the conveyor belt 26 around deflection rollers 36 and 38, the conveyor belt 28 around deflection rollers 40 and 42 and the conveyor belt 30 around deflection rollers 44 and 46.
  • the respective deflection rollers 32, 34, 36, 38, 40, 42, 44, 46 are rotatably mounted in end shields, which are not shown in FIG. 1.
  • the respective conveyor belts 24, 26, 28 and 30 are driven by a toothed belt 56, which is moved in the direction of arrow b by a drive 58.
  • the toothed belt 56 runs over a toothed belt pulley 48 which lies on the axis of the deflection roller 32, then over a toothed belt pulley 50 which lies on the axis of the deflection roller 38, then over a toothed belt pulley 52 which lies on the axis of the deflection roller 40, and finally via a toothed belt pulley 54 which is fastened on the axis of the deflection roller 46.
  • the guidance of the toothed belt 56 is shown in dashed lines in FIG. 1.
  • the rollers or rollers 16 or the rollers or rollers 18 are each mounted laterally in swivel arms 60, 62.
  • the swivel arm 60 can be swiveled about an axis 64 which is fixed in the bearing and the swivel arm 62 can be swiveled about an axis 66 which is fixed on the end shield.
  • the pivot axis 64 lies behind the rollers or rollers 16 in relation to the conveying direction (arrow a).
  • the pivot axis 66 lies in front of the rollers or rollers 18 in relation to the conveying direction (arrow direction a). This means that the pivot arms rest in the opposite direction. or swivel. This pivoting in opposite directions makes it possible to bring the rollers or rollers 16 and 18 into contact at the same time.
  • the pivoting of the swivel arms 60 and 62 takes place via a pull rod 68 which engages on the swivel arm 60 and a push rod 70 which engages on the swivel arm 62.
  • This pull rod 68 and this push rod 70 are each articulated on a lever 72 on another side of a shaft 72 on which the lever 72 is wedged.
  • the lever runs by means of a roller 78 over a cam disk 76 which can be driven in the direction of arrow c, the contact of the roller 78 with the cam disk 76 being ensured by a compression spring 80 which engages the lever 72 at the free end.
  • the swivel arms 60 and 62 can now be opened and closed via the cam disc and thus the rollers or rollers 16 and 18 can be brought into engagement with one another or can be controlled apart. The rollers are then brought into engagement with one another when a perforated hose section is to be separated.
  • the rollers or rollers 20 are supported by axles fixed to the end plate in the end plate not shown in FIG. 1.
  • the rollers 22 which are in engagement with the rollers 20, on the other hand, are displaceably mounted in the associated end shield.
  • FIG. 2 denotes the sectional view according to FIG. 2 in addition to FIG. 1.
  • 84 in FIG. 2 denotes the end shields, which are not shown in FIG. 1.
  • plates 86 are slidably guided in longitudinal guides.
  • the plates 86 can be acted upon by correspondingly articulated piston-cylinder units 92 in the direction of the transport plane.
  • the piston-cylinder units 92 are, as shown in FIG. 2, pivotably articulated on the plates 86.
  • An axis of rotation of a roller or roller 22 is arranged on the plates 86, as is shown in FIG. 2.
  • the other two rollers or rollers 22 are mounted in a rocker 88, the is in turn pivoted about bolts 94 in the plates 86 (see FIG. 2).
  • the rollers or rollers 22 are pressed uniformly against the rollers or rollers 20 when the plates 86 are pulled in the direction of the transport plane of the tubular web via the piston-cylinder units 92.
  • the rollers or rollers 20 or 22 abut one another, so that a sufficiently high pressure is exerted on the conveyor belts 28 and 30 in order to safely prefer the tubular web not shown in the figure.
  • the preferred mechanism 14 serves as a holding mechanism. In this case, an increased pressure force must be exerted on at least one pair of rollers or rollers 20, 22.
  • a push rod 96 engages an axis of a roller or roller 22 arranged in the rocker 88.
  • the push rods 96 are connected via a connecting shaft 98 to an arm 100, which is rotatably mounted in a shaft 102, which in turn is mounted in a side frame 82 of the entire device.
  • An arm 104 is also connected in a rotationally fixed manner to the shaft 102 and is coupled to the lever 72 via a push rod 106.
  • a part of the push rods 96 is shown enlarged, which is pivotally mounted in the arm 100.
  • the arm 100 and the arm 104 are arranged in a rotationally fixed manner on the shaft 102.
  • a joint head 108 is arranged, against which a sleeve 110 rests, which has a recess 112 on the inside.
  • a tube 114 is arranged on the push rod 106.
  • a clamping ring 116 is clamped at one end of the tube 114.
  • Between the A compression spring 118 is arranged in the clamping ring 116 and the sleeve 110. As shown in FIG.
  • the push rod 106 is now supported against the spring 118 via the pipe 114 and the clamping ring 116 arranged thereon, and via this against the sleeve 110 and the joint head 108. If the push rod 106 is now moved via the lever 72 in FIG. 1, the force is transmitted via the spring 118 to the sleeve and the joint head to the arm 104, so that the shaft 102 and thus the arm 100 is pivoted.
  • the spring 118 is dimensioned such that it completely transmits the transmitted thrust before it is compressed to such an extent that the tube 114 is displaced within the recess 112 up to the joint head 108.
  • the stroke of the push rod 106 which is usually to be transmitted here is approximately 3 mm.
  • FIGS. 4 and 5 show a modified embodiment of the embodiment according to FIGS. 1-3.
  • the functionally identical parts are not explained again in their function here. In this regard, reference is made to the previous description. The same parts are also described here with the same reference numerals.
  • an additional safety device is installed which causes the end shields 120 of the tear-off mechanism 12 or 122 of the preferred mechanism 14 to swing open when a foreign object is conveyed between the conveyor belts 24, 26 and 28, 30, respectively.
  • a foreign object can be, for example, a wrench that is inadvertently conveyed over the belt or any other object that can damage the rollers and rollers or deflection rollers if the end shields 120, 122 cannot be opened.
  • the end shields 120 and 122 are shown in the open position and in FIG. 5 in the corresponding open position.
  • the bearing plate 120 is about the axis 124 and the bearing plate 122 is pivotable about the axis 126.
  • the axis 124 coincides with the axis of the deflection roller 32 and the toothed belt wheel 48, while the axis 126 coincides with the axis of the deflection roller 40 and the axis of the toothed belt pulley 52. Due to this construction, the toothed belt 56 does not have to be removed when the end shields are opened, as can be seen from FIG. 5.
  • the swivel arm 60 is mounted in the end shield 120.
  • the pull rod 68 which is articulated on the swivel arm 60, does not act directly on the lever 72, but on an additional L-lever 132, which in turn is articulated on the lever 72.
  • the free end of the L-lever 132 engages a piston rod 130 which is immersed in a cylinder 128 fixed to the side frame. In the usual working position according to FIG. 4, the piston rod 130 is moved into the cylinder 128 fixed to the side frame.
  • the piston-cylinder unit is additionally connected to the end shield 122 at an articulation point 134. If a corresponding force is exerted on the rollers or rollers 20 or 22 by a solid object, then here in whole Similarly, if a certain amount of force is exceeded, the piston-cylinder unit moves apart, so that the bearing plate 122 is opened.

Abstract

The initial draw (14) and tear-off (12) units have opposite facing rollers (18) on both sides of the length of tubing being cut and over which run continuous conveyor belts (24,26,28,30). The tear-off unit incorporates pivot arms (60,62) in which the rollers are mounted. The arms are pivot mounted on pivot axles (64,66) which face each other in the direction of travel of the tubing so that the pivot arms can be swivelled into the opposite direction. A draw-bar (68) is positioned on one of the pivot arms over the plane of the tubing. A pressure bar (70) is positioned on one of the pivot arms under the plane of the tubing. The pivot arms are swivelled to and from each on the pivot arms, using a lever (72) and cam disc (76).

Description

Die Erfindung betrifft eine Trenneinrichtung zum Abtrennen perforierter Schlauchabschnitte nach dem Oberbegriff des Anspruchs 1.The invention relates to a separating device for separating perforated hose sections according to the preamble of claim 1.

Eine derartige Trenneinrichtung ist beispielsweise aus der DE 41 13 792 A1 bekannt. Bei diesen gattungsgemäßen Trenneinrichtungen wird durch das Vorzugswerk eine Schlauchbahn mit bestimmter Vorschubgeschwindigkeit bewegt. Während des Vorziehens durchläuft die Schlauchbahn das in Förderrichtung nachgeschaltete Abreißwerk, ohne daß die Rollen oder Walzen des Abreißwerks bzw. die über diese geführten Bänder mit der Schlauchbahn in Eingriff gehen. Soll nun eine Schlauchbahn in Schlauchbahnabschnitte durch Abreißen entlang einer in der Schlauchbahn quer verlaufenden Perforation erfolgen, werden die Rollen oder Walzen des Abreißwerkes an die Schlauchbahn angestellt und mit einer höheren Umfangsgeschwindigkeit als die Rollen oder Walzen des Vorzugswerkes angetrieben, um den Schlauchabschnitt abzureißen. Während des Abreißens wird aufgrund dieser Differenzgeschwindigkeit eine Zugkraft auf die gesamte nachfolgende Bahn ausgeübt. Solange die Stege der Perforationen noch nicht durchtrennt sind, setzt sich der Zug in das Vorzugswerk fort. Bei der vorgenannten Trenneinrichtung sind die sich gegenüberliegenden Walzen oder Rollen des Vorzugswerkes versetzt zueinander angeordnet. Die Schlauchbahn verläuft also schlangenlinienförmig zwischen diesen Walzen oder Rollen. Im praktischen Betrieb hat sich herausgestellt, daß die Andruckkraft durch die über die Walzen oder Rollen verlaufenden Bänder auf die Schlauchbahn nicht ausreicht, diese festzuhalten, wenn das Abreißwerk in Eingriff geht und - wie zuvor beschrieben - die Zugkraft auf die nachfolgende Schlauchbahn ausübt. Hierdurch kommt es zu einem unerwünschten Schlupf, der einerseits den Abreißvorgang ungünstig beeinflußt und andererseits auch zu einer Streifenbildung auf der Schlauchbahn aufgrund des Entlangrutschens an den Bändern führen kann.Such a separation device is known for example from DE 41 13 792 A1. In the case of these generic separating devices, a tubular web is moved by the preferred mechanism at a certain feed rate. During the pulling process, the tubular web runs through the tear-off device connected downstream in the conveying direction, without the rollers or rollers of the tear-off engine or the belts guided over it engaging with the tubular web. If a tubular web is now to be carried out in tubular web sections by tearing along a perforation running transversely in the tubular web, the rolls or rollers of the tear-off mechanism are placed against the tubular web and driven at a higher peripheral speed than the rollers or rollers of the preferred mechanism in order to tear off the tubular section. Due to this differential speed, a pulling force is exerted on the entire following web during the tearing off. As long as the webs of the perforations are not severed, it settles the train continues into the preferred plant. In the aforementioned separating device, the opposing rollers or rollers of the preferred mechanism are arranged offset from one another. The tubular path thus runs in a serpentine line between these rollers or rollers. In practical operation, it has been found that the pressure on the hose web due to the belts running over the rollers or rollers is not sufficient to hold it in place when the tear-off mechanism engages and - as described above - exerts the tensile force on the subsequent hose web. This leads to undesirable slippage, which on the one hand adversely affects the tearing process and on the other hand can also lead to streaking on the tubular web due to the slipping along the tapes.

Aus der DE 42 43 105 A1 ist eine weiterentwickelte Trenneinrichtung zum Abtrennen perforierter Schlauchabschnitte bekannt, bei der die unterhalb der zu trennenden Schlauchbahn angeordneten Rollen oder Walzen sowohl beim Abreißwerk wie auch beim Vorzugswerk synchronisiert zum Abreißen der perforierten Schlauchabschnitte angedrückt werden, wobei die Rollen oder Walzen jeweils translatorisch in einer zur Schlauchbahn senkrechten Bewegungsrichtung hin- und herbewegbar sind. Die konstruktive Verwirklichung dieser Trenneinrichtung ist aber aufgrund der translatorischen Führung der Rollen oder Walzen vergleichsweise aufwendig.From DE 42 43 105 A1, a further developed separating device for separating perforated hose sections is known, in which the rollers or rollers arranged underneath the hose web to be separated are pressed in synchronized manner, both in the tear-off mechanism and in the preferred mechanism, to tear off the perforated hose sections, the rollers or rollers are each translatable in a direction of movement perpendicular to the tubular path. The constructive realization of this separating device is comparatively complex due to the translatory guidance of the rollers or rollers.

Aufgabe der Erfindung ist es, eine gattungsgemäße Trenneinrichtung derart weiterzubilden, daß diese einerseits einfach aufgebaut ist und andererseits eine sichere und beschädigungsfreie Abtrennung von Schlauchabschnitten von einer perforierten Schlauchbahn ermöglicht.The object of the invention is to develop a generic separating device in such a way that, on the one hand, it is of simple construction and, on the other hand, it enables safe and damage-free separation of hose sections from a perforated hose web.

Ausgehend von einer gattungsgemäßen Trenneinrichtung wird diese Aufgabe erfindungsgemäß dadurch gelöst, daß im Abreißwerk die sich gegenüberliegenden Rollen oder Walzen jeweils in Schwenkarmen gelagert sind, die jeweils um Schwenkachsen schwenkbar sind, die sich in Transportrichtung der Schlauchbahn so gegenüberliegen, daß die Schwenkarme in entgegengesetzter Richtung aufschwenkbar sind. Durch diese Maßnahme ist es in einfacher Art und weise möglich, daß im Fall des Abreißens eines perforierten Abschnitts die sich gegenüberliegenden Rollen oder Walzen gleichzeitig in Anlage kommen. Dabei ist es hier nicht notwendig, einen Rollen- bzw. Walzensatz als Ganzes translatorisch zu führen, sondern es ist nur eine einfach zu verwirklichende Schwenkbewegung notwendig. Diese besonders einfache Lösung ist deswegen möglich, weil die Schwenkbewegungen der Schwenkarme, in welchen die Rollen bzw. Walzen gelagert sind, gegensinnig ist.Starting from a generic separating device, this object is achieved according to the invention in that the opposite rollers or rollers are each mounted in swivel arms, each of which can be swiveled about swivel axes, which are opposite each other in the transport direction of the tubular web so that the swivel arms can be swung open in the opposite direction. This measure makes it possible in a simple manner that in the event that a perforated section is torn off, the opposing rollers or rollers come into contact simultaneously. It is not necessary here to guide a set of rollers or rollers as a whole in translation, but only a simple pivoting movement is necessary. This particularly simple solution is possible because the pivoting movements of the pivot arms in which the rollers or rollers are mounted are in opposite directions.

Gemäß einer vorteilhaften Ausbildung der Erfindung ist an einem der oberhalb der Transportebene der Schlauchbahn angeordneten Schwenkarme eine Zugstange und an einem der unterhalb der Transportebene der Schlauchbahn angeordneten Schwenkarme eine Druckstange angelenkt, die über einen Hebel und eine Kurvenscheibe derart beaufschlagbar sind, daß die Schwenkarme um die Schwenkachsen aufeinander zu und voneinander weg schwenkbar sind.According to an advantageous embodiment of the invention, a pull rod is articulated on one of the swivel arms arranged above the transport plane of the tubular web and a push rod is articulated on one of the swivel arms arranged below the transport plane of the tubular web Swivel axes towards and away from each other are pivotable.

Für eine weitere technische Lösung, die ebenfalls von einer Trenneinrichtung nach dem Oberbegriff des Anspruchs 1 ausgeht, und für die unabhängig Schutz beansprucht wird, sind im Vorzugswerk die oberhalb der Transportebene der Schlauchbahn angeordneten Rollen oder Walzen der sich gegenüberliegenden Rollen oder Walzen auf lagerschildfesten Achsen gelagert. Dagegen sind die unterhalb der Transportebene der Schlauchbahn angeordneten Rollen oder Walzen auf Achsen gelagert, die mit in den Lagerschilden verschieblich geführten Platten verbunden sind, wobei an einem Schwenkpunkt der verschieblichen Platten eine Kolben-Zylinder-Einheit angreift. Eine Rolle oder Walze ist auf einer plattenfesten Achse gelagert, während zwei Rollen oder Walzen auf Achsen gelagert sind, die in einer schwenkbar in den Platten aufgehängten Wippe gelagert sind. Diese Anordnung der Rollen oder Walzen ermöglicht es, daß sämtliche drei nebeneinanderliegende Rollen oder Walzen bei Anstellen durch die Kolben-Zylinder-Einheit sich gleichzeitig an die Gegendruckrollen bzw. -walzen anlegen, da hier Unebenheiten durch Verschwenken um die jeweiligen Schwenkpunkte unmittelbar ausgeglichen werden.For a further technical solution, which also starts from a separating device according to the preamble of claim 1 and for which protection is claimed independently, the rollers or rollers of the opposing rollers or rollers arranged above the transport plane of the tubular web are mounted on axles fixed to the end shield in the preferred mechanism . In contrast, the rollers or rollers arranged below the transport plane of the tubular web are mounted on axles which are connected to plates which are displaceably guided in the end shields, a piston-cylinder unit acting on a pivot point of the displaceable plates. A roll or roller is on a flat one Axle mounted, while two rollers or rollers are mounted on axles, which are mounted in a rocker pivotally suspended in the plates. This arrangement of the rollers or rollers makes it possible for all three rollers or rollers lying next to one another to lie against the counter-pressure rollers or rollers at the same time when the piston-cylinder unit is used, since unevenness is immediately compensated for here by pivoting about the respective pivot points.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung wird die Steuerbewegung für die Zugstange bzw. Druckstange des Abreißwerkes über eine Gestängeanordnung auch auf die verschieblich geführten Rollen oder Walzen im Vorzugswerk übertragen, wobei das Gestänge vorzugsweise an einer Seite der Wippe angreift. Eine Schubstange dieses Übertragungsgestänges kann über eine Feder mit den weiteren Teilen des Gestänges gekoppelt sein. Hierdurch wird verhindert, daß die mit dem Gestänge beaufschlagte Rolle bzw. Walze schlagartig angedrückt wird. Vielmehr wird ein durch die Feder gedämpftes Anstellen der Rolle bzw. Walze an die Gegendruckrolle bzw. -walze ermöglicht.According to a further advantageous embodiment of the invention, the control movement for the pull rod or push rod of the tear-off mechanism is also transmitted to the displaceably guided rollers or rollers in the preferred mechanism via a linkage arrangement, the linkage preferably engaging on one side of the rocker. A push rod of this transmission linkage can be coupled to the other parts of the linkage via a spring. This prevents the roller or roller loaded with the linkage from being abruptly pressed on. Rather, a damping of the roller or roller against the counter-pressure roller or roller is made possible by the spring.

Die oberhalb der Transportebene der Schlauchbahn angeordneten Lagerschilde des Abreißwerkes und des Vorzugswerkes können um eine Achse schwenkbar gelagert sein, wobei die Schwenkachse mit der Drehachse jeweils derjenigen Umlenkrollen für das Förderband zusammenfällt, die in Förderrichtung der Schlauchbahn gesehen hinten liegt. Dieses Aufschwenken in einer gegen Förderrichtung verlaufenden Richtung ermöglicht es, die oberhalb der Transportebene liegenden Förderbänder dann aufzuschwenken, wenn beispielsweise ein Fremdgegenstand, wie ein versehentlich liegengelassener Schraubenzieher oder dergleichen, zwischen die Bänder gefördert wird. Das Aufschwenken verhindert eine Zerstörung der aneinanderliegenden Rollen oder Walzen.The end shields of the tear-off unit and the preferred unit arranged above the transport plane of the tubular track can be pivoted about an axis, the pivot axis coinciding with the axis of rotation of each of the deflection rollers for the conveyor belt which, as seen in the conveying direction of the tubular track, lies at the rear. This swiveling in a direction running counter to the conveying direction makes it possible to swivel up the conveyor belts lying above the transport plane when, for example, a foreign object, such as an accidentally left screwdriver or the like, is conveyed between the belts. Swinging open prevents the adjacent rolls or rollers from being destroyed.

Die Förderbänder des Abreißwerkes und des Haltewerkes können insbesondere bei der zuletzt erläuterten Ausgestaltung der Erfindung über einen motorisch angetriebenen Zahnriemen antreibbar sein, wobei der Zahnriemen jeweils über Zahnriemenscheiben geführt ist, die auf Achsen von Umlenkrollen drehfest angeordnet sind und wobei die Zahnriemenscheiben, die oberhalb der Schlauchbahn angeordnet sind, auf der Achse angeordnet sind, um die die Lagerschilde schwenkbar sind.The conveyor belts of the tear-off unit and the holding unit can be driven, in particular in the last-explained embodiment of the invention, via a motor-driven toothed belt, the toothed belt being guided in each case via toothed belt pulleys which are arranged in a rotationally fixed manner on the axes of deflection rollers and wherein the toothed belt pulleys, which are above the tubular track are arranged, are arranged on the axis about which the end shields are pivotable.

Weitere Einzelheiten und Vorteile der Erfindung werden anhand von zwei in den Zeichnungen dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1:
eine schematische Seitenansicht einer Ausführungsform der erfindungsgemäßen Trenneinrichtung,
Fig. 2:
einen Teilschnitt durch ein Vorzugswerk einer Vorrichtung gemäß der Ausführungsform nach Fig. 1,
Fig. 3:
ein Detail des Übertragungsgestänges nach einer Ausführungsform gemäß Fig. 1,
Fig. 4:
eine Seitenansicht einer zweiten Ausführungsform der vorliegenden Erfindung und
Fig. 5:
eine Seitenansicht der Ausführungsform gemäß Fig. 4 in einem anderen Betriebszustand.
Further details and advantages of the invention are explained in more detail with reference to two exemplary embodiments shown in the drawings. Show it:
Fig. 1:
2 shows a schematic side view of an embodiment of the separating device according to the invention,
Fig. 2:
2 shows a partial section through a preferred mechanism of a device according to the embodiment according to FIG. 1,
Fig. 3:
2 shows a detail of the transmission linkage according to an embodiment according to FIG. 1,
Fig. 4:
a side view of a second embodiment of the present invention and
Fig. 5:
a side view of the embodiment of FIG. 4 in another operating state.

Eine Trennvorrichtung 10 zum Abtrennen perforierter Schlauchabschnitte von einer Schlauchbahn besteht aus einem Abreißwerk 12 und einem Vorzugswerk 14. Das Abreißwerk 12 ist in Förderrichtung (Pfeil a) hinter dem Vorzugswerk 14 angeordnet, wie aus der Fig. 1 ersichtlich ist.A separating device 10 for separating perforated tube sections from a tubular web consists of a tear-off mechanism 12 and a preferred mechanism 14. The tear-off mechanism 12 is arranged in the conveying direction (arrow a) behind the preferred mechanism 14, as shown in FIG Fig. 1 can be seen.

Das Abreißwerk 12 und das Vorzugswerk weist jeweils auf beiden Seiten der Schlauchbahn angeordnete Rollen oder Walzen, 16, 18, bzw. 20, 22 auf, über die in bekannter weise angetriebene Bänder 24, 26, bzw. 28, 30 laufen. Das Transportband 24 wird über Umlenkrollen 32 und 34, das Transportband 26 um Umlenkrollen 36 und 38, das Transportband 28 um Umlenkrollen 40 und 42 und das Transportband 30 um Umlenkrollen 44 und 46 geführt. Die jeweiligen Umlenkrollen 32, 34, 36, 38, 40, 42, 44, 46 sind in in der Fig. 1 nicht näher dargestellten Lagerschilden drehbar gelagert. Die jeweiligen Förderbänder 24, 26, 28 und 30 werden über einen Zahnriemen 56 angetrieben, der über einen Antrieb 58 in Pfeilrichtung b bewegt wird. Der Zahnriemen 56 läuft über eine Zahnriemenscheibe 48, die auf der Achse der Umlenkrolle 32 liegt, geführt, anschließend über eine Zahnriemenscheibe 50, die auf der Achse der Umlenkrolle 38 liegt, anschließend über eine Zahnriemenscheibe 52, die auf der Achse der Umlenkrolle 40 liegt, und schließlich über eine Zahnriemenscheibe 54, die auf der Achse der Umlenkrolle 46 befestigt ist. Die Führung des Zahnriemens 56 ist in Fig. 1 in gestrichelter Linie dargestellt.The tear-off mechanism 12 and the preferred mechanism each have rollers or rollers 16, 18 and 20, 22 arranged on both sides of the tubular web, over which belts 24, 26 and 28, 30 run in a known manner. The conveyor belt 24 is guided over deflection rollers 32 and 34, the conveyor belt 26 around deflection rollers 36 and 38, the conveyor belt 28 around deflection rollers 40 and 42 and the conveyor belt 30 around deflection rollers 44 and 46. The respective deflection rollers 32, 34, 36, 38, 40, 42, 44, 46 are rotatably mounted in end shields, which are not shown in FIG. 1. The respective conveyor belts 24, 26, 28 and 30 are driven by a toothed belt 56, which is moved in the direction of arrow b by a drive 58. The toothed belt 56 runs over a toothed belt pulley 48 which lies on the axis of the deflection roller 32, then over a toothed belt pulley 50 which lies on the axis of the deflection roller 38, then over a toothed belt pulley 52 which lies on the axis of the deflection roller 40, and finally via a toothed belt pulley 54 which is fastened on the axis of the deflection roller 46. The guidance of the toothed belt 56 is shown in dashed lines in FIG. 1.

Im Abreißwerk 12 sind die Rollen oder Walzen 16 bzw. die Rollen oder Walzen 18 jeweils seitlich in Schwenkarmen 60, 62 gelagert. Der Schwenkarm 60 ist um eine lagerfeste Achse 64 und der Schwenkarm 62 ist um eine lagerschildfeste Achse 66 schwenkbar. Die Schwenkachse 64 liegt bezogen auf die Förderrichtung (Pfeil a) hinter den Rollen oder Walzen 16. Demgegenüber liegt die Schwenkachse 66 bezogen auf die Förderrichtung (Pfeilrichtung a) vor den Rollen oder Walzen 18. Das bedeutet, daß die Schwenkarme in gegensinniger Richtung auf- bzw. zuschwenken. Durch dieses gegensinnige Verschwenken ist es möglich, die Rollen oder Walzen 16 und 18 gleichzeitig in Kontakt zu bringen.In the tear-off unit 12, the rollers or rollers 16 or the rollers or rollers 18 are each mounted laterally in swivel arms 60, 62. The swivel arm 60 can be swiveled about an axis 64 which is fixed in the bearing and the swivel arm 62 can be swiveled about an axis 66 which is fixed on the end shield. The pivot axis 64 lies behind the rollers or rollers 16 in relation to the conveying direction (arrow a). In contrast, the pivot axis 66 lies in front of the rollers or rollers 18 in relation to the conveying direction (arrow direction a). This means that the pivot arms rest in the opposite direction. or swivel. This pivoting in opposite directions makes it possible to bring the rollers or rollers 16 and 18 into contact at the same time.

Die Verschwenkung der Schwenkarme 60 bzw. 62 erfolgt über eine Zugstange 68, die am Schwenkarm 60 und eine Druckstange 70, die am Schwenkarm 62 angreift. Diese Zugstange 68 und diese Druckstange 70 sind an einem Hebel 72 jeweils auf einer anderen Seite einer Welle 72, auf der der Hebel 72 aufgekeilt ist, angelenkt. Der Hebel läuft mittels einer Rolle 78 über eine in Pfeilrichtung c antreibbare Kurvenscheibe 76, wobei die Anlage der Rolle 78 an der Kurvenscheibe 76 über eine am freien Ende das Hebels 72 angreifende Druckfeder 80 gewährleistet ist. Über die Kurvenscheibe können nun die Schwenkarme 60 bzw. 62 auf- und zugesteuert werden und somit die Rollen oder Walzen 16 bzw. 18 miteinander in Eingriff gebracht werden bzw. auseinandergesteuert werden. Die Rollen bzw. Walzen werden dann miteinander in Eingriff gebracht, wenn ein perforierter Schlauchabschnitt abgetrennt werden soll.The pivoting of the swivel arms 60 and 62 takes place via a pull rod 68 which engages on the swivel arm 60 and a push rod 70 which engages on the swivel arm 62. This pull rod 68 and this push rod 70 are each articulated on a lever 72 on another side of a shaft 72 on which the lever 72 is wedged. The lever runs by means of a roller 78 over a cam disk 76 which can be driven in the direction of arrow c, the contact of the roller 78 with the cam disk 76 being ensured by a compression spring 80 which engages the lever 72 at the free end. The swivel arms 60 and 62 can now be opened and closed via the cam disc and thus the rollers or rollers 16 and 18 can be brought into engagement with one another or can be controlled apart. The rollers are then brought into engagement with one another when a perforated hose section is to be separated.

Beim Vorzugswerk 14 sind die Rollen oder Walzen 20 über lagerschildfeste Achsen im in der Fig. 1 nicht näher dargestellten Lagerschild gelagert. Die mit den Rollen 20 in Eingriff stehenden Rollen 22 sind dagegen verschieblich in dem zugehörigen Lagerschild gelagert. Zur Erläuterung der Lagerung der Rollen oder Walzen 22 kann neben der Fig. 1 auch auf die Schnittdarastellung gemäß Fig. 2 Bezug genommen werden. Mit 84 sind in Fig. 2 die in der Fig. 1 nicht dargestellten Lagerschilde bezeichnet. In diesen sind in Längsführungen 90 Platten 86 verschieblich geführt. Die Platten 86 sind über entsprechend angelenkte Kolben-Zylinder-Einheiten 92 in Richtung auf die Transportebene beaufschlagbar. Die Kolben-Zylinder-Einheiten 92 sind, wie in der Fig. 2 dargestellt, schwenkbar an den Platten 86 angelenkt. Plattenfest an den Platten 86 ist eine Drehachse einer Rolle oder Walze 22 angeordnet, wie das in Fig. 2 dargestellt ist. Die anderen beiden Rollen oder Walzen 22 sind in einer Wippe 88 gelagert, die um Bolzen 94 wiederum schwenkbar in den Platten 86 gelagert ist (vgl. Fig. 2). Durch diese pendelnde Anordnung werden die Rollen oder Walzen 22 gleichmäßig an die Rollen oder Walzen 20 gedrückt, wenn über die Kolben-Zylinder-Einheiten 92 die Platten 86 in Richtung der Transportebene der Schlauchbahn gezogen werden. Zum Vorzug der Schlauchbahn in Pfeilrichtung a liegen die Rollen oder Walzen 20 bzw. 22 aneinander, so daß auf die Transportbänder 28 und 30 ein hinreichend hoher Druck ausgeübt wird, um die in der Figur nicht näher dargestellte Schlauchbahn sicher vorzuziehen. Wenn nun ein Beutelabschnitt abgerissen werden soll, d.h. wenn die Rollen oder Walzen 16, 18 des Abreißwerkes 12 in Eingriff gehen dient das Vorzugswerk 14 als Haltewerk. In diesem Fall muß zumindest auf ein Rollen- oder Walzenpaar 20, 22 eine erhöhte Andruckkraft ausgeübt werden. Hierzu greift eine Schubstange 96 an eine in der Wippe 88 angeordneten Achse einer Rolle oder Walze 22 an. Die Schubstangen 96 sind über eine Verbindungswelle 98 mit einem Arm 100 verbunden, der drehfest in einer Welle 102 gelagert ist, die wiederum in einem Seitengestell 82 der gesamten Vorrichtung gelagert ist. Drehfest mit der Welle 102 ist ebenfalls ein Arm 104 verbunden, der über eine Schubstange 106 mit dem Hebel 72 gekoppelt ist. Somit kann über die Kurvenscheibe 76 einerseits ein Verschwenken der Schwenkarme 60 und 62 und gleichzeitig andererseits ein Anschwenken der Wippe 88 und damit ein Anpressen einer der Rollen oder Walzen 22 an eine der Rollen oder Walzen 20 erreicht werden.In the preferred mechanism 14, the rollers or rollers 20 are supported by axles fixed to the end plate in the end plate not shown in FIG. 1. The rollers 22 which are in engagement with the rollers 20, on the other hand, are displaceably mounted in the associated end shield. To explain the mounting of the rollers or rollers 22, reference can also be made to the sectional view according to FIG. 2 in addition to FIG. 1. 84 in FIG. 2 denotes the end shields, which are not shown in FIG. 1. In these 90 plates 86 are slidably guided in longitudinal guides. The plates 86 can be acted upon by correspondingly articulated piston-cylinder units 92 in the direction of the transport plane. The piston-cylinder units 92 are, as shown in FIG. 2, pivotably articulated on the plates 86. An axis of rotation of a roller or roller 22 is arranged on the plates 86, as is shown in FIG. 2. The other two rollers or rollers 22 are mounted in a rocker 88, the is in turn pivoted about bolts 94 in the plates 86 (see FIG. 2). By means of this oscillating arrangement, the rollers or rollers 22 are pressed uniformly against the rollers or rollers 20 when the plates 86 are pulled in the direction of the transport plane of the tubular web via the piston-cylinder units 92. For the preference of the tubular web in the direction of arrow a, the rollers or rollers 20 or 22 abut one another, so that a sufficiently high pressure is exerted on the conveyor belts 28 and 30 in order to safely prefer the tubular web not shown in the figure. If a bag section is now to be torn off, ie if the rollers 16, 18 of the tear-off mechanism 12 engage, the preferred mechanism 14 serves as a holding mechanism. In this case, an increased pressure force must be exerted on at least one pair of rollers or rollers 20, 22. For this purpose, a push rod 96 engages an axis of a roller or roller 22 arranged in the rocker 88. The push rods 96 are connected via a connecting shaft 98 to an arm 100, which is rotatably mounted in a shaft 102, which in turn is mounted in a side frame 82 of the entire device. An arm 104 is also connected in a rotationally fixed manner to the shaft 102 and is coupled to the lever 72 via a push rod 106. Thus, on the one hand, pivoting of the swivel arms 60 and 62 and, on the other hand, pivoting of the rocker 88 and thus pressing one of the rollers or rollers 22 against one of the rollers or rollers 20 can be achieved via the cam disk 76.

In Fig. 3 ist ein Teil der Schubstangen 96 vergrößert dargestellt, die schwenkbar im Arm 100 gelagert ist. Der Arm 100 und der Arm 104 sind drehfest an der Welle 102 angeordnet. Am freien Ende des Arms 104 ist ein Gelenkkopf 108 angeordnet, an dem eine Hülse 110 anliegt, die innen eine Ausdrehung 112 aufweist. Auf der Schubstange 106 ist ein Rohr 114 angeordnet. An einem Ende des Rohres 114 ist ein Klemmring 116 festgeklemmt. Zwischen dem Klemmring 116 und der Hülse 110 ist eine Druckfeder 118 angeordnet. Wie in der Fig. 3 dargestellt, stützt sich nun die Schubstange 106 über das auf ihr angeordnete Rohr 114 und den Klemmring 116 gegen die Feder 118 und über diese gegen die Hülse 110 und den Gelenkkopf 108 ab. Wird die Schubstange 106 nun über den Hebel 72 in Fig. 1 verschoben, so wird die Kraft über die Feder 118 auf die Hülse und den Gelenkkopf an den Arm 104 übertragen, so daß die Welle 102 und damit der Arm 100 verschwenkt wird. Die Feder 118 ist dabei so dimensioniert, daß diese die übertragene Schubkraft vollständig überträgt, bevor sie soweit zusammengedrückt wird, daß das Rohr 114 innerhalb der Ausdrehung 112 bis zum Gelenkkopf 108 verschoben wird. Der üblicherweise zu übertragende Hub der Schubstang 106 beträgt hier ca. 3 mm.In Fig. 3 a part of the push rods 96 is shown enlarged, which is pivotally mounted in the arm 100. The arm 100 and the arm 104 are arranged in a rotationally fixed manner on the shaft 102. At the free end of the arm 104, a joint head 108 is arranged, against which a sleeve 110 rests, which has a recess 112 on the inside. A tube 114 is arranged on the push rod 106. A clamping ring 116 is clamped at one end of the tube 114. Between the A compression spring 118 is arranged in the clamping ring 116 and the sleeve 110. As shown in FIG. 3, the push rod 106 is now supported against the spring 118 via the pipe 114 and the clamping ring 116 arranged thereon, and via this against the sleeve 110 and the joint head 108. If the push rod 106 is now moved via the lever 72 in FIG. 1, the force is transmitted via the spring 118 to the sleeve and the joint head to the arm 104, so that the shaft 102 and thus the arm 100 is pivoted. The spring 118 is dimensioned such that it completely transmits the transmitted thrust before it is compressed to such an extent that the tube 114 is displaced within the recess 112 up to the joint head 108. The stroke of the push rod 106 which is usually to be transmitted here is approximately 3 mm.

In den Fig. 4 und 5 ist eine modifizierte Ausführungsform zu der Ausführungsform gemäß der Fig. 1-3 dargestellt. Die funktionsgleichen Teile werden hier nicht nochmals in ihrer Funktion erläutert. Diesbezüglich wird auf die vorherige Beschreibung verwiesen. Gleiche Teile werden hier auch mit gleichen Bezugszeichen beschrieben.4 and 5 show a modified embodiment of the embodiment according to FIGS. 1-3. The functionally identical parts are not explained again in their function here. In this regard, reference is made to the previous description. The same parts are also described here with the same reference numerals.

In den Fig. 4 und 5 ist eine zustätzliche Sicherung eingebaut, die ein Aufschwenken der Lagerschilde 120 des Abreißwerkes 12 bzw. 122 des Vorzugswerks 14 dann bewirkt, wenn ein Fremdgegenstand zwischen die Förderbänder 24, 26 bzw. 28, 30 gefördert wird. Ein solcher Fremdgegenstand kann beispielsweise ein Schraubenschlüssel sein, der versehentlich über das Band gefördert wird oder ein beliebiger anderer Gegenstand, der dann zu einer Beschädigung der Rollen und Walzen bzw. Umlenkrollen führen kann, wenn die Lagerschilde 120, 122 nicht aufsteuerbar sind. In der Fig. 4 sind die Lagerschilde 120 und 122 in nicht aufgesteuerter Stellung und in Fig. 5 in entsprechend aufgesteuerter Stellung dargestellt. Das Lagerschild 120 ist um die Achse 124 und das Lagerschild 122 um die Achse 126 verschwenkbar. Die Achse 124 fällt mit der Achse der Umlenkrolle 32 und des Zahnriemenrades 48 zusammen, während die Achse 126 mit der Achse der Umlenkrolle 40 und der Achse der Zahnriemenscheibe 52 zusammenfällt. Aufgrund dieser Konstruktion braucht der Zahnriemen 56 nicht abgenommen werden, wenn die Lagerschilde aufgesteuert werden, wie aus der Fig. 5 ersichtlich.4 and 5, an additional safety device is installed which causes the end shields 120 of the tear-off mechanism 12 or 122 of the preferred mechanism 14 to swing open when a foreign object is conveyed between the conveyor belts 24, 26 and 28, 30, respectively. Such a foreign object can be, for example, a wrench that is inadvertently conveyed over the belt or any other object that can damage the rollers and rollers or deflection rollers if the end shields 120, 122 cannot be opened. 4, the end shields 120 and 122 are shown in the open position and in FIG. 5 in the corresponding open position. The bearing plate 120 is about the axis 124 and the bearing plate 122 is pivotable about the axis 126. The axis 124 coincides with the axis of the deflection roller 32 and the toothed belt wheel 48, while the axis 126 coincides with the axis of the deflection roller 40 and the axis of the toothed belt pulley 52. Due to this construction, the toothed belt 56 does not have to be removed when the end shields are opened, as can be seen from FIG. 5.

In dem Lagerschild 120 ist, wie schon bereits anhand der Fig. 1 beschrieben, der Schwenkarm 60 gelagert. Bei der hier dargestellten modifizierten Ausführungsform greift die Zugstange 68, die am Schwenkarm 60 angelenkt ist, nicht unmittelbar am Hebel 72 an, sondern an einem zusätzlichen L-Hebel 132, der wiederum schwenkbar am Hebel 72 angelenkt ist. Das freie Ende des L-Hebels 132 greift an einer Kolbenstange 130 an, welche in einem seitengestellfesten Zylinder 128 eintaucht. In der üblichen Arbeitsstellung gemäß Fig. 4 ist die Kolbenstange 130 in den seitengestellfesten Zylinder 128 eingefahren. Tritt nun ein fester Gegenstand zwischen die Förderbänder 24 und 26 ein, so wird auf die Rollen oder Walzen 16, 18 eine Kraft ausgeübt, die dazu führt, daß die Schwenkarme 60 und 64 auseinandergespreizt werden. Der Schwenkarm 60 legt sich an der Kante des Lagerschildes 120 an, wie dies in Fig. 5 dargestellt ist, so daß auf die Zugstange 68 eine Zugkraft aufgeprägt wird, die über den Schwenkhebel 132 auf die eingefahrene Kolbenstange 130 wirkt und beim Überschreiten eines bestimmten Betrages dazu führt, daß die Kolbenstange 130 ausfährt und daß das Lagerschild 120 um die Schwenkachse 124 aufgesteuert wird.As already described with reference to FIG. 1, the swivel arm 60 is mounted in the end shield 120. In the modified embodiment shown here, the pull rod 68, which is articulated on the swivel arm 60, does not act directly on the lever 72, but on an additional L-lever 132, which in turn is articulated on the lever 72. The free end of the L-lever 132 engages a piston rod 130 which is immersed in a cylinder 128 fixed to the side frame. In the usual working position according to FIG. 4, the piston rod 130 is moved into the cylinder 128 fixed to the side frame. If a solid object now enters between the conveyor belts 24 and 26, a force is exerted on the rollers or rollers 16, 18 which causes the swivel arms 60 and 64 to be spread apart. The pivot arm 60 bears against the edge of the end shield 120, as shown in FIG. 5, so that a pulling force is impressed on the pull rod 68, which acts on the retracted piston rod 130 via the pivot lever 132 and when a certain amount is exceeded leads to the fact that the piston rod 130 extends and that the bearing plate 120 is opened about the pivot axis 124.

Bei dem Vorzugswerk 14 ist die Kolben-Zylinder-Einheit zusätzlich an einem Anlenkpunkt 134 mit dem Lagerschild 122 verbunden. Wird durch einen festen Gegenstand eine entsprechende Kraft auf die Rollen oder Walzen 20 bzw. 22 ausgeübt, so wird hier in ganz ähnlicher Art und Weise bei Überschreiten eines bestimmten Betrages der Kraft die Kolben-Zylinder-Einheit auseinandergefahren, so daß das Lagerschild 122 aufgesteuert wird.In the preferred mechanism 14, the piston-cylinder unit is additionally connected to the end shield 122 at an articulation point 134. If a corresponding force is exerted on the rollers or rollers 20 or 22 by a solid object, then here in whole Similarly, if a certain amount of force is exceeded, the piston-cylinder unit moves apart, so that the bearing plate 122 is opened.

Claims (7)

Trenneinrichtung zum Abtrennen perforierter Schlauchabschnitte mit einem Vorzugswerk und einem Abreißwerk, die jeweils auf beiden Seiten der zu trennenden Schlauchbahn sich gegenüberliegende Rollen oder Walzen aufweisen, über die endlose Förderbänder laufen, wobei die Rollen oder Walzen des Abreißwerkes über ein Steuerelement in Richtung auf die Schlauchbahn bewegbar sind,
dadurch gekennzeichnet,
daß im Abreißwerk die sich gegenüberliegenden Rollen oder Walzen jeweils in Schwenkarmen gelagert sind, die jeweils um Schwenkachsen schwenkbar gelagert sind, die sich in Transportrichtung der Schlauchbahn so gegenüberliegen, daß die Schwenkarme in die entgegengesetzte Richtung aufschwenkbar sind.Separating device for separating perforated tube sections with a preferred mechanism and a tear-off mechanism, each of which has rollers or rollers lying opposite one another on both sides of the tubular membrane to be separated, over which endless conveyor belts run, the rollers or rollers of the tear-off mechanism being movable in the direction of the tubular membrane via a control element are,
characterized,
that the opposing rollers or rollers are each mounted in swivel arms in the tear-off mechanism, which are each pivotably mounted about swivel axes, which are opposite each other in the transport direction of the tubular web so that the swivel arms can be swung open in the opposite direction. Trenneinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß an einem der oberhalb der Transportebene der Schlauchbahn angeordneten Schwenkarme eine Zugstange und an einem der unterhalb der Transportebene der Schlauchbahn angeordneten Schwenkarme eine Druckstange angelenkt sind, die über einen Hebel und eine Kurvenscheibe derart beaufschlagbar sind, daß die Schwenkarme um die Schwenkachsen aufeinander zu und voneinander weg schwenkbar sind.Separating device according to claim 1, characterized in that a pull rod is articulated on one of the swivel arms arranged above the transport plane of the tubular web and a push rod is articulated on one of the swivel arms arranged below the transport plane of the tubular web Swivel arms are pivotable towards and away from one another about the swivel axes. Trenneinrichtung nach dem Oberbegriff des Anspruchs 1 und vorzugsweise nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß im Vorzugswerk die oberhalb der Transportebene der Schlauchbahn angeordneten Rollen oder Walzen der sich gegenüberliegenden Rollen oder Walzen auf lagerschildfesten Achsen gelagert sind, daß die unterhalb der Transportebene der Schlauchbahn angeordneten Rollen oder Walzen auf Achsen gelagert sind, die mit in den Lagerschilden verschieblich geführten Platten verbunden sind, daß an einem Schwenkpunkt der verschieblichen Platten eine Kolben-Zylinder-Einheit angreift, daß eine Rolle oder Walze auf einer plattenfesten Achse gelagert ist und daß zwei Rollen oder Walzen auf Achsen gelagert sind, die in einer schwenkbar in den Platten aufgehängten Wippe gelagert sind.Separating device according to the preamble of claim 1 and preferably according to claim 1 or claim 2, characterized in that the rollers or rollers of the opposing rollers or rollers arranged above the transport plane of the tubular web are mounted on axles fixed to the end shield in the preferred mechanism, that those below the transport plane of the Tubular track arranged rollers or rollers are mounted on axles, which are connected to slidably guided plates in the end shields, that a piston-cylinder unit engages at a pivot point of the slidable plates, that a roller or roller is mounted on a plate-fixed axis and that two Rollers or rollers are mounted on axles which are mounted in a rocker which is pivotally suspended in the plates. Trenneinrichtung nach einem der Ansprüche 1-3, dadurch gekennzeichnet, daß die Steuerbewegung für die Zugstange bzw. Druckstange des Abreißwerkes über eine Gestängeanordnung auch auf die verschieblich geführten Rollen oder Walzen im Vorzugswerk übertragen werden.Separating device according to one of claims 1-3, characterized in that the control movement for the pull rod or push rod of the tear-off mechanism is also transmitted to the displaceably guided rollers or rollers in the preferred mechanism via a linkage arrangement. Trenneinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß eine Schubstange des Übertragungsgestänges über eine Feder mit den weiteren Teilen des Gestänges gekoppelt ist.Separating device according to claim 4, characterized in that a push rod of the transmission linkage via a spring is coupled to the other parts of the boom. Trenneinrichtung nach einem der Ansprüche 1-5, dadurch gekennzeichnet, daß die oberhalb der Transportebene der Schlauchbahn angeordneten Lagerschilde des Abreißwerkes und des Vorzugswerkes um eine Achse schwenkbar gelagert sind, wobei die Schwenkachse mit der Drehachse jeweils derjenigen Umlenkrolle für das Förderband zusammenfällt, die in Förderrichtung der Schlauchbahn gesehen hinten liegt.Separating device according to one of claims 1-5, characterized in that the end plates of the tear-off unit and the preferred unit arranged above the transport plane of the tubular web are pivotally mounted about an axis, the pivot axis coinciding with the axis of rotation of the deflection roller for the conveyor belt which is in the conveying direction seen the hose track is behind. Trenneinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Förderbänder des Abreißwerks und des Haltewerks über einen motorisch angetriebenen Zahnriemen antreibbar sind, wobei der Zahnriemen jeweils über Zahnriemenscheiben geführt ist, die auf Achsen von Umlenkrollen drehfest angeordnet sind und daß die Zahnriemenscheiben, die oberhalb der Schlauchbahn angeordnet sind, auf der Achse angeordnet sind, um die die Lagerschilde schwenkbar sind.Separating device according to claim 6, characterized in that the conveyor belts of the tear-off mechanism and the holding mechanism can be driven via a motor-driven toothed belt, the toothed belt being guided in each case via toothed belt pulleys which are arranged in a rotationally fixed manner on axes of deflecting rollers and in that the toothed belt pulleys which are above the tubular track are arranged, are arranged on the axis about which the end shields are pivotable.
EP95114425A 1994-11-14 1995-09-14 Apparatus for separating perforated tubular web sections Expired - Lifetime EP0711724B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4440660 1994-11-14
DE4440660A DE4440660C2 (en) 1994-11-14 1994-11-14 Separating device for separating perforated hose sections

Publications (2)

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EP0711724A1 true EP0711724A1 (en) 1996-05-15
EP0711724B1 EP0711724B1 (en) 2000-07-12

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US (1) US6206262B1 (en)
EP (1) EP0711724B1 (en)
JP (1) JP3616178B2 (en)
CA (1) CA2161364C (en)
CZ (1) CZ290482B6 (en)
DE (3) DE4447782C2 (en)
ES (1) ES2148388T3 (en)
SK (1) SK281906B6 (en)
TW (1) TW276242B (en)

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EP2481566A1 (en) 2011-01-31 2012-08-01 Windmöller & Hölscher KG Method and system for processing orders to produce sacks
EP2481565A1 (en) 2011-01-31 2012-08-01 Windmöller & Hölscher KG Method and system for processing at least two orders following each other to produce sacks
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EP2481564A1 (en) 2011-01-31 2012-08-01 Windmöller & Hölscher KG Method for producing sacks in which stacks of sacks or semi-finished sack products are transported from one machine to a second machine and system containing an initial machine and the transport and storage device
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CN108016922A (en) * 2016-11-04 2018-05-11 朝日物产(天津)矿业有限公司 Bag membrane cutter mechanism

Also Published As

Publication number Publication date
DE4440660C2 (en) 1998-12-03
US6206262B1 (en) 2001-03-27
EP0711724B1 (en) 2000-07-12
TW276242B (en) 1996-05-21
DE4447782C2 (en) 2000-08-31
DE4440660A1 (en) 1996-05-15
CZ290482B6 (en) 2002-08-14
SK141095A3 (en) 1996-09-04
JP3616178B2 (en) 2005-02-02
JPH08225231A (en) 1996-09-03
ES2148388T3 (en) 2000-10-16
DE59508559D1 (en) 2000-08-17
CA2161364C (en) 2006-02-14
SK281906B6 (en) 2001-09-11
CZ298795A3 (en) 1996-08-14
CA2161364A1 (en) 1996-05-15

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