EP0999161B1 - Device for the compensation of the feeding motion of a film web - Google Patents
Device for the compensation of the feeding motion of a film web Download PDFInfo
- Publication number
- EP0999161B1 EP0999161B1 EP99120773A EP99120773A EP0999161B1 EP 0999161 B1 EP0999161 B1 EP 0999161B1 EP 99120773 A EP99120773 A EP 99120773A EP 99120773 A EP99120773 A EP 99120773A EP 0999161 B1 EP0999161 B1 EP 0999161B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rockers
- rocker
- group
- deflection rollers
- arms
- 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 - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
- B65H23/1955—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations and controlling web tension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/048—Registering, tensioning, smoothing or guiding webs longitudinally by positively actuated movable bars or rollers
Definitions
- the invention relates to a device for compensating Feed movement of a film web on or in machines, especially for processing plastic films for the Production of bags, sacks and the like, according to the Preamble of the first claim.
- EP 0 510 251 A1 and US 3,540,641 describe a generic device in which two rockers are arranged so as to be pivotable with respect to one another.
- the swivel axes are located at opposite ends of the rockers.
- the free ends of the wings are also arranged opposite one another. If a free end of a first rocker moves away from the second rocker, the opposite end of the second rocker moves away from it by the same amount parallel to the first rocker.
- the two wings are always parallelogram-like. When closed, both wings are aligned horizontally.
- the same amount of movement of both rockers is ensured, for example, by a chain that leads from the pivot bearing of one rocker to the pivot bearing of the other rocker over the entire length of the rockers.
- the invention has for its object to develop a device to compensate for the movement of a film web, which has a simple construction, works reliably even with large take-off paths and short cycle times, ensures an almost constant web tension and thus guarantees a trouble-free process flow. This object is achieved with the features of the first claim.
- the device for compensating the feed movement of the film web which is guided in loops between a first group and a second group of deflecting rollers, has, as is known, a first group of deflecting rollers, which is arranged on a first rocker movable in the direction of the second group of deflecting rollers ,
- the second group of deflecting rollers are also arranged on a second rocker arm, which moves in the direction of the first rocker arm when the film web is advanced.
- the rockers are mounted such that they are V-shaped to each other from an initial position in which they are arranged at an opening angle greater than zero, to an end position in which they are essentially parallel to one another and the opening angle is zero, and vice versa symmetrically symmetrical are pivotable relative to one another, the free ends of the two rockers pointing in the same direction in a position parallel to one another.
- each rocker only has to travel half the distance to pull off a certain length of film (feed).
- the first rocker is mounted about a first pivot axis and the second rocker about a second pivot axis, which are parallel to each other.
- the rockers are coupled to one another via corresponding elements such as intermeshing gear wheels. Both rockers are returned to the spaced-apart starting position via retraction elements.
- Each rocker arm consists of parallel arms, between which the deflection rollers are mounted. Each arm is pivotally supported by a bearing.
- the two bearings of the first rocker are arranged on a first shaft and the two bearings of the second rocker are arranged on a second shaft.
- the deflecting rollers of the first rocker and the deflecting rollers of the second rocker are preferably arranged offset from one another.
- the pivot axes are advantageously placed so that the arms of the rockers point towards the ground in the manner of a hanging arrangement.
- the weight of the swingarms is relieving and therefore beneficial when starting the film web.
- a standing swing arm (bearings are arranged in the direction of the floor and the arms point upwards) is more favorable for driving on, since the weight of the swing arms also tightens the film web.
- the new double swing arm makes it easy elegant way to travel for every swingarm halved and thus the risk of undesirable Swinging up with long trigger lengths and short ones Cycle times significantly reduced. It will be almost generated constant web tension, thus the Manufacturing accuracy increased and tearing of the film web reliably avoided.
- Another advantage of the invention is that the two swiveling swing foil storage with one longer trigger lengths are possible.
- the first rocker 1 shows the basic illustration of a standing double rocker in the starting position, which consists of a first rocker 1 and a second rocker 2.
- the first rocker 1 has two mutually parallel arms 3 and 4. Each arm 3, 4 is supported at one end on a shaft 5. At the two ends of the shaft 5 bearings 6 and 7 are provided, around which the first rocker can be rotated. Between the arms 3 and 4 of the first rocker 1, several deflecting rollers 8 are received.
- the second rocker arm 2 is constructed from arms 3 'and 4' which are parallel to one another, a shaft 5 'with bearings 6' and 7 'and deflecting rollers 8'.
- the shafts 5 and 5 ' are attached to the machine frame, not shown, via flanges 9 and 9'.
- Retractable elements 10 and 10 ' are also fastened to the machine frame on the two arms 3 and 4 and on the arms 3' and 4 ', by means of which the rockers 1 and 2 are returned to the starting position.
- Interlocking gears are provided in this illustration between the shafts 5 and 5 'which are arranged at a short distance from one another.
- the double rocker is in side view from a roll 11 starting from inserted film web 12 in the Starting position A with open and in end position B shown with closed wings 1 and 2.
- the mode of action is as follows: From the roll 11, the film web 12 is inserted in loops between the deflection rollers 8 and 8 'of the rockers 1 and 2. In the starting position, the rockers 1 and 2 are in the open state (mutually V-shaped position) and form an opening angle ⁇ with their arms 3/4 and 3 '/ 4'. If the film web 12 is pulled off in the direction of the arrow, the rockers 1, 2 move symmetrically toward one another counter to the restoring force of the restoring elements 10, 10 ′ arranged on the machine frame 13, up to an essentially parallel position (opening angle approx. 0 °) into the end position. The symmetrical positive run is realized via the gears, not shown, between the shafts 5 and 5 '.
- the peelable film length is determined by the difference in length of the film stored in the device in the starting position and in the end position.
Landscapes
- Advancing Webs (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Replacement Of Web Rolls (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Ausgleich der Vorschubbewegung einer Folienbahn an oder in Maschinen, insbesondere zur Verarbeitung von Kunststoffolien für die Fertigung von Beuteln, Säcken und dergleichen, nach dem Oberbegriff des ersten Patentanspruchs.The invention relates to a device for compensating Feed movement of a film web on or in machines, especially for processing plastic films for the Production of bags, sacks and the like, according to the Preamble of the first claim.
Nach DE OS 33 27 636 A1, EP 0 761 425 A1 und WO 97/19012 ist es bekannt, die Folienbahn zwischen Umlenkwalzen entlangzuführen. Eine erste Gruppe von Umlenkwalzen ist dabei in einer Ebene liegend ortsfest am Maschinengestell gelagert, eine zweite Gruppe von Umlenkwalzen ist an einem Schwingarm angeordnet, der um eine horizontale Achse hinund herschwingend gelagert ist. Die Folienbahn wird dabei in Schlaufen zwischen den am Maschinengestell angeordneten und den am Schwingarm angeordneten Umlenkwalzen geführt. Bei einer Vorschubbewegung der Folienbahn wird in der Länge des Vorschubes der Schwingarm um seine Achse in Richtung zu den gestellfesten Umlenkwalzen bewegt. Die abziehbare Folienlänge wird dabei von der Anzahl der Schlaufen und von der möglichen Länge der Bewegung des Schwingarmes bestimmt. According to DE OS 33 27 636 A1, EP 0 761 425 A1 and WO 97/19012 it is known the film web between deflection rollers along out. A first group of deflection rollers is while lying in one level, stationary on the machine frame stored, a second group of guide rollers is on one The swing arm is arranged around the horizontal axis is mounted in a vibrating manner. The film web will be there in loops between those arranged on the machine frame and the deflection rollers arranged on the swing arm. With a feed movement of the film web, the length the feed of the swing arm towards its axis the deflection rollers fixed to the frame. The removable Film length is determined by the number of loops and the possible length of the movement of the swing arm is determined.
Nachteilig ist, daß bei großen Abzugslängen und kurze
Taktzeiten die Gefahr des Aufschwingens des Schwingarmes
und somit der Folienbahn gegeben ist, wodurch ruckartige
Schwankungen der Bahnspannung der Folienbahn zu verzeichnen
sind. Diese können z.B. zu unerwünschten Ungenauigkeiten
der Beutellänge und zu Druckbildverschiebungen führen. Im
Extremfall kann es zum Reißen der Folienbahn kommen.
Um diese Schwankungen der Bahnspannung zu vermeiden, wurde
gem. DE OS 35 071 42 vorgeschlagen, einen zusätzlichen Arm
über einen Hebel zwischenzuschalten, der schwenkbar
ausgebildet und durch eine Federkraft beaufschlagt ist.
Nachteilig ist der relativ hohe technische Aufwand durch
den zusätzlichen Arm und den Hebel. EP 0 510 251 A1 und US
3,540,641 beschreiben eine gattungsgemäße Vorrichtung, bei
welcher zwei Schwingen zueinander schwenkbar angeordnet
sind. Die Schwenkachsen liegen an sich gegenüberliegenden
Enden der Schwingen. Die freien Enden der Schwingen sind
ebenfalls sich gegenüberliegend angeordnet. Bewegt sich ein
freies Ende einer ersten Schwinge von der zweiten Schwinge
weg, so bewegt sich das dazu entgegengesetzte Ende der
zweiten Schwinge um den gleichen Betrag parallel zur ersten
Schwinge von dieser weg. Dadurch liegen sich die beiden
Schwingen immer parallelogrammartig gegenüber. Im
geschlossenem Zustand sind beide Schwingen horizontal
ausgerichtet. Der gleiche Bewegungsbetrag beider Schwingen
wird z.B. über eine Kette gewährleistet, die über die
gesamte Länge der Schwingen vom Schwenklager einer Schwinge
zum Schwenklager der anderen Schwinge führt. Diese Lösung
ist relativ aufwendig und benötigt eine große Stellfläche.
Bei allen vorgenannt beschriebenen Lösungen ist weiterhin
nur eine begrenzte Vorschublänge möglich.It is disadvantageous that with long take-off lengths and short cycle times there is a risk of the oscillating arm and thus the film web swinging open, which causes jerky fluctuations in the web tension of the film web. These can, for example, lead to undesired inaccuracies in the bag length and to shifting of the printed image. In extreme cases, the film web can tear.
In order to avoid these fluctuations in the web tension, according to DE OS 35 071 42 proposed to interpose an additional arm via a lever which is designed to be pivotable and acted upon by a spring force. The relatively high technical outlay due to the additional arm and the lever is disadvantageous. EP 0 510 251 A1 and US 3,540,641 describe a generic device in which two rockers are arranged so as to be pivotable with respect to one another. The swivel axes are located at opposite ends of the rockers. The free ends of the wings are also arranged opposite one another. If a free end of a first rocker moves away from the second rocker, the opposite end of the second rocker moves away from it by the same amount parallel to the first rocker. As a result, the two wings are always parallelogram-like. When closed, both wings are aligned horizontally. The same amount of movement of both rockers is ensured, for example, by a chain that leads from the pivot bearing of one rocker to the pivot bearing of the other rocker over the entire length of the rockers. This solution is relatively complex and requires a large footprint. With all the solutions described above, only a limited feed length is still possible.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung
zum Ausgleich der Bewegung einer Folienbahn zu entwickeln,
die einen einfachen konstruktiven Aufbau aufweist, auch bei
großen Abzugswegen und geringen Taktzeiten zuverlässig
arbeitet, eine nahezu konstante Bahnspannung gewährleistet
und somit einen störungsfreien Prozeßablauf garantiert.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des
ersten Patentanspruchs gelöst. Die Vorrichtung zum
Ausgleich der Vorschubbewegung der Folienbahn, die zwischen
einer ersten Gruppe und einer zweiten Gruppe von
Umlenkwalzen in Schlaufen entlanggeführt wird, weist
bekannter Weise eine erste Gruppe von Umlenkwalzen auf, die
an einer in Richtung zur zweiten Gruppe von Umlenkwalzen
bewegbaren ersten Schwinge angeordnet ist. Auch die zweite
Gruppe von Umlenkwalzen an sind an einer zweiten Schwinge
angeordnet, die sich bei einer Vorschubbewegung der
Folienbahn in Richtung zur ersten Schwinge bewegt. Die
Schwingen sind dabei derart gelagert, daß sie aus einer
Ausgangsposition, in welcher sie in einem Öffnungswinkel
größer Null V-förmig zueinander angeordnet sind, in eine
Endposition, in welcher sie im wesentlichen parallel
zueinander liegen und der Öffnungswinkel Null ist, und
umgekehrt spiegelbildlich symmetrisch zueinander schwenkbar
sind, wobei die freien Enden der beiden Schwingen in
zueinander paralleler Lage in die gleiche Richtung weisen.
Durch diesen Bewegungsablauf hat jede Schwinge nur den
halben Weg des gesamten erforderlichen Abstandes zum Abzug
einer bestimmten Folienlänge (Vorschub) zurückzulegen. Die
erste Schwinge ist um eine erste Schwenkachse und die
zweite Schwinge um eine zweite Schwenkachse gelagert, die
zueinander parallel sind. Um einen symmetrischen
Bewegungsablauf zu erzielen sind die Schwingen über
entsprechende Elemente wie z.B. ineinander greifende
Zahnräder miteinander gekoppelt.
Beide Schwingen werden über Rückzugelemente wieder in die
voneinander beabstandete Ausgangsposition geführt. The invention has for its object to develop a device to compensate for the movement of a film web, which has a simple construction, works reliably even with large take-off paths and short cycle times, ensures an almost constant web tension and thus guarantees a trouble-free process flow.
This object is achieved with the features of the first claim. The device for compensating the feed movement of the film web, which is guided in loops between a first group and a second group of deflecting rollers, has, as is known, a first group of deflecting rollers, which is arranged on a first rocker movable in the direction of the second group of deflecting rollers , The second group of deflecting rollers are also arranged on a second rocker arm, which moves in the direction of the first rocker arm when the film web is advanced. The rockers are mounted such that they are V-shaped to each other from an initial position in which they are arranged at an opening angle greater than zero, to an end position in which they are essentially parallel to one another and the opening angle is zero, and vice versa symmetrically symmetrical are pivotable relative to one another, the free ends of the two rockers pointing in the same direction in a position parallel to one another. As a result of this sequence of movements, each rocker only has to travel half the distance to pull off a certain length of film (feed). The first rocker is mounted about a first pivot axis and the second rocker about a second pivot axis, which are parallel to each other. In order to achieve a symmetrical sequence of movements, the rockers are coupled to one another via corresponding elements such as intermeshing gear wheels.
Both rockers are returned to the spaced-apart starting position via retraction elements.
Diese Rückzugelemente sind vorzugsweise als Feder, als
Hydraulikzylinder oder als Pneumatikzylinder ausgebildet.
Jede Schwinge besteht aus zueinander parallelen Armen,
zwischen welchen die Umlenkwalzen gelagert sind. Jeder Arm
wird dabei von einem Lager schwenkbar aufgenommen.
Die beiden Lager der ersten Schwinge sind auf einer ersten
Welle und die beiden Lager der zweiten Schwinge auf einer
zweiten Welle angeordnet.
Die Umlenkwalzen der ersten Schwinge und die Umlenkwalzen
der zweiten Schwinge sind vorzugsweise zueinander versetzt
angeordnet.
Die Schwenkachsen werden vorteilhafter Weise so gelegt, daß
die Arme der Schwingen in der Art einer hängenden Anordnung
in Richtung zum Boden weisen. Das Eigengewicht der
Schwingen wirkt sich dabei entlastend und somit günstig
beim Anfahren der Folienbahn aus.
Eine stehende Schwinge (Lagerungen sind in Richtung zum
Boden angeordnet und die Arme weisen nach oben) ist für das
Weiterfahren günstiger, da das Gewicht der Schwingen die
Folienbahn zusätzlich strafft.These retraction elements are preferably designed as a spring, as a hydraulic cylinder or as a pneumatic cylinder.
Each rocker arm consists of parallel arms, between which the deflection rollers are mounted. Each arm is pivotally supported by a bearing.
The two bearings of the first rocker are arranged on a first shaft and the two bearings of the second rocker are arranged on a second shaft.
The deflecting rollers of the first rocker and the deflecting rollers of the second rocker are preferably arranged offset from one another.
The pivot axes are advantageously placed so that the arms of the rockers point towards the ground in the manner of a hanging arrangement. The weight of the swingarms is relieving and therefore beneficial when starting the film web.
A standing swing arm (bearings are arranged in the direction of the floor and the arms point upwards) is more favorable for driving on, since the weight of the swing arms also tightens the film web.
Durch die neuartige Doppelschwinge wird auf einfache elegante Weise der zurückzulegende Weg für jede Schwinge halbiert und somit die Gefahr des unerwünschten Aufschwingens bei großen Abzugslängen und geringen Taktzeiten wesentlich reduziert. Es wird eine nahezu konstante Bahnspannung erzeugt, somit die Fertigungsgenauigkeit erhöht und ein Reißen der Folienbahn zuverlässig vermieden.The new double swing arm makes it easy elegant way to travel for every swingarm halved and thus the risk of undesirable Swinging up with long trigger lengths and short ones Cycle times significantly reduced. It will be almost generated constant web tension, thus the Manufacturing accuracy increased and tearing of the film web reliably avoided.
Ein weiterer Vorteil der Erfindung besteht darin, daß durch die beiden schwenkbaren Schwingen Folienspeicher mit einer größeren Abzugslänge möglich sind.Another advantage of the invention is that the two swiveling swing foil storage with one longer trigger lengths are possible.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen und zugehörigen Zeichnungen näher erläutert. Es zeigen:
- Fig. 1:
- Prinzipdarstellung einer Doppelschwinge in dreidimensionaler Ansicht
- Fig. 2:
- Seitenansicht der Doppelschwinge in Ausgangs- und Endposition mit einer in Richtung zum Boden weisenden Lagerung
- Fig. 1:
- Principle representation of a double swing arm in a three-dimensional view
- Fig. 2:
- Side view of the double rocker in the starting and end positions with a bearing pointing towards the floor
In Fig. 1 wird die Prinzipdarstellung einer stehenden
Doppelschwinge in Ausgangsposition gezeigt, welche aus
einer ersten Schwinge 1 und einer zweiten Schwinge 2
besteht. Die erste Schwinge 1 weist zwei zueinander
parallele Arme 3 und 4 auf. Jeder Arm 3, 4 ist mit einem
Ende an einer Welle 5 gelagert. An den beiden Enden der
Welle 5 sind Lager 6 und 7 vorgesehen, um welche die erste
Schwinge gedreht werden kann. Zwischen den Armen 3 und 4
der ersten Schwinge 1 sind mehrere Umlenkwalzen 8
aufgenommen.
Analog ist die zweite Schwinge 2 aus zueinander parallelen
Armen 3' und 4', einer Welle 5' mit Lagern 6' und 7' sowie
Umlenkwalzen 8' aufgebaut. Die Wellen 5 und 5' werden über
Flansche 9 und 9' am nicht dargestellten Maschinengestell
befestigt. Am Maschinengestell ebenfalls befestigbar sind
an den beiden Armen 3 und 4 sowie an den Armen 3' und 4'
Rückzugelemente 10 und 10' angeordnet, durch welche die
Schwingen 1 und 2 in die Ausgangsposition zurückgeführt
werden. Zwischen den in geringem Abstand zueinander
angeordneten Wellen 5 und 5' sind in dieser Darstellung
nicht sichtbare ineinandergreifende Zahnräder vorgesehen.1 shows the basic illustration of a standing double rocker in the starting position, which consists of a first rocker 1 and a
Analogously, the
In Fig. 2 ist die Doppelschwinge in Seitenansicht mit von
einer Rolle 11 ausgehend eingelegter Folienbahn 12 in der
Ausgangsposition A mit geöffneten und in der Endposition B
mit geschlossenen Schwingen 1 und 2 dargestellt.In Fig. 2, the double rocker is in side view from
a
Die Wirkungsweise ist folgende:
Von der Rolle 11 wird die Folienbahn 12 in Schlaufen
zwischen die Umlenkwalzen 8 und 8' der Schwingen 1 und 2
eingelegt. In Ausgangsposition befinden sich die Schwingen
1 und 2 in geöffnetem Zustand (zueinander V-förmige Lage)
und bilden mit ihren Armen 3/4 und 3'/4' einen
Öffnungswinkel α.
Wird die Folienbahn 12 in Pfeilrichtung abgezogen, bewegen
sich die Schwingen 1, 2 entgegen der Rückstellkraft der am
Maschinengestell 13 angeordneten Rückstellelemente 10, 10'
symmetrisch aufeinander zu, bis in eine im wesentlichen
parallele Lage (Öffnungswinkel ca. 0°) in die Endposition.
Der symmetrische Zwangslauf wird dabei über die nicht
dargestellten Zahnräder zwischen den Wellen 5 und 5'
realisiert.
Die abziehbare Folienlänge wird dabei bestimmt von der
Längendifferenz der in der Vorrichtung gespeicherten Folie
in Ausgangsposition und in Endposition.
Gemäß eines weiteren nicht dargestellten
Ausführungsbeispiels besteht auch die Möglichkeit, beide
Schwingen auf einer gemeinsamen Welle zu lagern. Dabei muß
ebenfalls durch geeignete Elemente ein Zwangslauf zwischen
den Schwingen zur Gewährleistung einer symmetrischen
Bewegung vorgesehen werden.The mode of action is as follows:
From the
If the
The peelable film length is determined by the difference in length of the film stored in the device in the starting position and in the end position.
According to a further exemplary embodiment, which is not shown, there is also the possibility of mounting both rockers on a common shaft. Appropriate elements must also provide a forced movement between the rockers to ensure symmetrical movement.
Mit der Erfindung wird es neben den bereits vorgenannt aufgeführten Vorteilen im Vergleich zu herkömmlichen Lösungen ebenfalls möglich, die Foliendurchlaufgeschwindigkeit und die Taktzahl um ca. 30 bis 50% zu erhöhen.With the invention it is already mentioned in addition to the advantages listed compared to conventional Solutions also possible that Film throughput speed and the number of cycles by approx. 30 to increase to 50%.
Claims (10)
- An apparatus for compensating the forward feed motion of a film sheeting which is guided along a first group of deflection rollers (8) and a second group of deflection rollers (8') in loops, with the first group of deflection rollers (8) being arranged on a first rocker (1) and the second group of deflection rollers (8') on a second rocker (2) and both rockers (1, 2) comprising mutually parallel arms (3,4, 3', 4') and being swivelable relative to each other, characterized in that the rockers (1, 2) are swivelable in a mirror-inverted symmetrical fashion with respect to each other and vice-versawith the free ends of the rockers facing in the closed position in the same direction.from an opened position in which the rockers (1, 2) are arranged with respect to each other in a V-shaped manner in an aperture angle (α > 0),to a closed position in which the rockers (1, 2) are disposed substantially parallel with respect to each other and the aperture angle (α) is approximately zero,
- An apparatus as claimed in claim 1, characterized in thatboth rockers (1, 2) are held about a common swiveling axle orthat the swiveling axles of both rockers (1, 2) are arranged at a small distance from each other.
- An apparatus as claimed in claim 1 or 2, characterized in that the rockers (1, 2) are held on a common shaft or on shafts (5, 5') which are situated at a small distance from each other.
- An apparatus as claimed in one or several of the claims 1 to 3, characterized in that the arms (3, 4, 3', 4') of the rockers (1, 2) face towards the floor in the manner of a suspended arrangement.
- An apparatus as claimed in one or several of the claims 1 to 3, characterized in that the swiveling axles are arranged such that the arms (3, 4, 3', 4') of the rockers (1, 2) face upwardly in the manner of a standing arrangement.
- An apparatus as claimed in one or several of the claims 1 to 5, characterized in that the first rocker (1) and the second rocker (2) are coupled directly with each other via at least one element which ensures a mirror-inverted symmetrical sequence of movements of the two rockers (1, 2) with respect to each other.
- An apparatus as claimed in claim 4, characterized in that the element is arranged in the form of mutually engaging toothed wheels.
- An apparatus as claimed in one of the claims 1 to 7, characterized in that each rocker (1, 2) comprises at least one resetting element (10) which ensures the return to the initial position.
- An apparatus as claimed in claim 8, characterized in that the resetting element (10) is arranged as a spring, hydraulic cylinder or as a pneumatic cylinder.
- An apparatus as claimed in claim 8 or 9, characterized in that the resetting element (10) is fastened to an arm (3, 3', 4, 4') of the rockers (1, 2) on the one hand and to the frame (13) on the other hand.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19848519A DE19848519A1 (en) | 1998-10-21 | 1998-10-21 | Device for compensating the feed movement of a film web |
| DE19848519 | 1998-10-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0999161A1 EP0999161A1 (en) | 2000-05-10 |
| EP0999161B1 true EP0999161B1 (en) | 2003-05-02 |
Family
ID=7885181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99120773A Expired - Lifetime EP0999161B1 (en) | 1998-10-21 | 1999-10-20 | Device for the compensation of the feeding motion of a film web |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0999161B1 (en) |
| AT (1) | ATE238956T1 (en) |
| DE (2) | DE19848519A1 (en) |
| ES (1) | ES2199512T3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2186483B1 (en) * | 2000-09-12 | 2004-03-16 | Torres Martinez M | BAND PACKING WITH OBLIQUE UNION. |
| JP5622549B2 (en) * | 2010-12-10 | 2014-11-12 | 株式会社リブドゥコーポレーション | Absorbent article manufacturing system |
| CN104495444B (en) * | 2014-12-12 | 2017-01-04 | 北京航天斯达科技有限公司 | A kind of winding article intermittent entry device |
| EP3385203B1 (en) * | 2017-04-07 | 2020-07-08 | Mespack, S.L. | Web film movement compensating device for a web film movement compensation between a continuous forward movement section and an intermittent forward movement section |
| CN116443640B (en) * | 2023-06-15 | 2023-09-05 | 苏州江天包装科技股份有限公司 | On-line tension adjusting system for stepwise-decomposition type printed product |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3024957A (en) * | 1959-01-05 | 1962-03-13 | Cons Electrodynamics Corp | Tape apparatus |
| US3540641A (en) * | 1968-11-21 | 1970-11-17 | Celanese Corp | Web accumulator |
| CA2052180A1 (en) * | 1991-04-24 | 1992-10-25 | Thomas C. Meyer | Opposed arm web accumulator |
| DE4241353C2 (en) * | 1992-11-11 | 1996-10-02 | Kisters Maschinenbau Gmbh | Dancer for a web-like material processing machine |
| DE69626664T2 (en) * | 1995-11-17 | 2003-10-16 | Hudson-Sharp Machine Co., Green Bay | METHOD AND DEVICE FOR THE SPEED CONTROL OF A RAILWAY |
-
1998
- 1998-10-21 DE DE19848519A patent/DE19848519A1/en not_active Withdrawn
-
1999
- 1999-10-20 DE DE59905306T patent/DE59905306D1/en not_active Expired - Fee Related
- 1999-10-20 AT AT99120773T patent/ATE238956T1/en not_active IP Right Cessation
- 1999-10-20 ES ES99120773T patent/ES2199512T3/en not_active Expired - Lifetime
- 1999-10-20 EP EP99120773A patent/EP0999161B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2199512T3 (en) | 2004-02-16 |
| ATE238956T1 (en) | 2003-05-15 |
| DE59905306D1 (en) | 2003-06-05 |
| DE19848519A1 (en) | 2000-05-04 |
| EP0999161A1 (en) | 2000-05-10 |
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