EP1290961B1 - Apparatus for manufacturing brushware, in particular toothbrushes - Google Patents
Apparatus for manufacturing brushware, in particular toothbrushes Download PDFInfo
- Publication number
- EP1290961B1 EP1290961B1 EP02018309A EP02018309A EP1290961B1 EP 1290961 B1 EP1290961 B1 EP 1290961B1 EP 02018309 A EP02018309 A EP 02018309A EP 02018309 A EP02018309 A EP 02018309A EP 1290961 B1 EP1290961 B1 EP 1290961B1
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- EP
- European Patent Office
- Prior art keywords
- bristles
- manufacture
- conveying device
- bristle
- particular toothbrushes
- 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
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/08—Preparing uniform tufts of bristles
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D3/00—Preparing, i.e. Manufacturing brush bodies
- A46D3/08—Parts of brush-making machines
- A46D3/082—Magazines for bristles; Feeding bristles to magazines; Knot picking
Definitions
- the present invention relates to a device for producing bristle articles, in particular Toothbrushes, according to the preamble of patent claim 1.
- US 4,360,236 describes a double fiber magazine for a machine for making brushes, which consists of two magazines that are immovably connected are.
- the magazines are opposite a picker or bundle swab segment arranged.
- Each magazine is according to this disclosure with a separation device and pressing components for pushing the fibers toward the bundle swab segment fitted.
- a device is provided to take turns Fibers beyond the reach of the bundle swab segment into one of the two fibers magazine.
- the double fiber magazine described in US 4,360,236 comes For example, in the toothbrush production with different bristle colors or different bristle material for use.
- US 5,518,301 describes a method and apparatus for feeding Fibers to a filling tool in a machine for making brushes.
- the procedure has the following steps per operating cycle: Spend a fiber bundle out a selected fiber feed channel to a filling tool by means of a bundle receiving device, which cooperates with at least two fiber channels; Using movable closing devices for the selective supply of fibers with feed ends
- the fiber channels work together and that through their movement guarantee that to one Time spent only fibers from a fiber channel of the bundle receiving device can be;
- the locking devices are on a common carrier mounted to operate simultaneously for each cycle of operation.
- DE 26 43 222 A1 also describes a method and a device for brush production.
- a brush-making machine on a bristle magazine which with one or more stuffing devices cooperates.
- the brush manufacturing machine a feeder to the magazine for bundled bristles and a Opening device for the clusters bundling the bristle bundles.
- the In the transfer area arranged at the magazine entrance feeder has a means of transport with holding devices for bristle bundles, as a conveyor belt or as a circulating Chain is formed.
- DE 38 06 160 A1 discloses a pre-processing or provisioning machine for bristles, the fibers being in the form of bonded or wrapped bundles of bristles be supplied.
- the wrapping of the bristle bundles becomes automatic open and the fibers are cleaned and sorted before entering the fiber channels of a Get brush making machine.
- the filaments are for transport between Flat belts are clamped and are thus in a simple way, batchwise the operation accordingly, moved forward.
- a disadvantage of the known methods and the constructive embodiments of the known Filament feed chutes is that here zones occur in which no continuous Filament flow developed. These zones are also referred to as dead zones, themselves have a negative impact on process safety and product quality.
- the object of the present invention is to provide an improved device for producing To provide toothbrushes, which avoids the disadvantages of the prior art.
- This device is intended in particular the cost-effective production of bristles with high process reliability and product quality.
- the active filament delivery accelerates the ejection of disturbances in the filament bed and thus ensures increased product quality. That is, areas in the Filament feed chute, in which filaments the upright orientation by external influences lost, are faster pushed out of the filament shaft. Thereby results in a reduced susceptibility to interference and increased process reliability.
- a Symmetrical gripping of the filaments from the middle of the shaft possible. This will be particular achieved in that the opposite conveying devices symmetrically on Shaft are arranged. A higher consistency in the number of filaments at each Process flow into the recesses of the picker segment is also achieved.
- the required number of To provide filaments per bundle swab or per picker stroke is directly in the Shaping the bundles of bristles (Tufting) included.
- a further advantageous device for producing bristle goods sees the features of claim 2 before.
- the flat or toothed belt for example, from fabricated with fabric reinforced elastomeric plastic.
- the surface can be roughened or be structured.
- a tuft-like strand of bristles passes through the shaft formed by the two opposing pressure surfaces. hereby single tufts can be created in one go in the picker segment.
- the conveyor with two or more Wheels may be provided of metal or plastic.
- the device according to the invention is particularly suitable for special filaments (claim 9), because of different surfaces, cross-sections and materials nevertheless always be transported evenly.
- Fig. 1 shows a schematic sectional view of a first embodiment of a active feed unit 1 according to the invention as an active feed unit 1 is a driven Conveying device for bristle bundles refers to an upper conveyor belt. 2 and a lower conveyor belt 8, each as a driven flat belt made of elastomeric Plastic are formed.
- the upper conveyor belt 2 and the lower conveyor belt 8 are mirror-symmetrical about one Symmetry axis 9 arranged. In the following, the structure of the conveyor belts 2, 8 therefore only described once.
- the symmetrically shaped conveyor belts 2, 8 each have a drive wheel 3 and four Pulleys 5 on.
- the conveyor belt 2, 8 is wrapped around the pulleys 5, that parallel to the axis of symmetry 9 each stretched straight between two pulleys 5 Andschreib modelling 6 is formed.
- Spaced away from the pressure surface 6 and the symmetry line 9 is arranged the drive wheel 3, of the conveyor belt 2, 8 almost to the half circumference is entwined.
- a further deflection roller closes 5, which, however, acts from the outside on the conveyor belt 2, 8 and therefore as a pressure roller serves.
- On the pressure roller follows a further deflection roller 5, the conveyor belt 2, 8 in Direction of the pressure surface 6 deflects.
- the upper conveyor belt 2 and the lower conveyor belt 8 serve the damage-free Transport of loose in a feed chute 21 standing bristles 10 precut Length, also called filaments or strands.
- the many bristles will be 10 while along by the applied by the pressing surfaces 6, 6 tangential forces the symmetry line 9 moves in the direction of arrow A and form formally through the Andrück vom 6 laterally limited bristle line 20.
- the bristles 10 are perpendicular in Fig. 1 to the arrow A, so that in Fig. 1, only the cut surfaces of the ends of the bristles 10th recognizes that are represented here as dots and in reality are close together.
- the bristle line 20 is not wider than the diameter the individual bristles 10 and the individual bristles 10 are successively through the transported very narrow bristle 20.
- the bristles 10 are in a recess promoted to form a tuft 25, which, however, not shown in the figures is. If a recess is filled, it is displaced laterally and the next recess comes to the height of the very narrow bristle road 20 and can with bristles 10 be filled.
- the bristles 10 meet at an outlet opening 7, which has a predetermined diameter.
- recesses 24 provided picker segment 22, in which the bristles 10 to bristle bundles 25th be summarized and brought for further processing, for example, in "Mold bars” where then their ends with plastic to form a complete toothbrush head to be overmoulded.
- Fig. 2 shows a perspective view of a second embodiment of an inventive active feeding unit 15.
- the feeding unit 15 according to this embodiment has a base plate 11 and a cover plate 12.
- the base plate 11 and the cover plate 12 are made of solid machined metal.
- Between the base plate 11 and the cover plate 12 are a right gear 14 and a left Gear 15 rotatably arranged with grooves 23 in which the bristles 10 for transport slide in and be moved in direction A.
- the two gears 14, 15 are over two synchronized drive shafts are driven and are not in mesh with each other, but between the right gear 14 and the left gear 15 is a gap 19th provided by which the loosely standing in a feed chute bristles (not shown) pre-cut length, also known as filament tufts or strands, directly a picker segment, which engages the bristle bundles supplied.
- the Gears 14, 15 limit this gap 19 laterally and serve as pressure surfaces 13, so that also here in this area, similar to that described above for Fig. 1, a to Gap 19 tapered bristle street (not shown) forms.
- the rotating gears 14, 15 are on the bristles on the pressure surfaces 13, 13 applied tangential forces, whereby the bristles move in the direction of arrow A.
- an active feed unit is realized and the formation of dead zones in the bristle bundle flow prevented.
- the left gear 15 rotates counter and the right gear 14 clockwise in the same rotational speed or stop and go time.
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- Brushes (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Vorrichtung zum Herstellen von Borstenwaren, insbesondere Zahnbürsten, gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a device for producing bristle articles, in particular Toothbrushes, according to the preamble of patent claim 1.
Aus dem Stand der Technik sind bereits Vorrichtungen zur Herstellung von Borstenwaren, insbesondere Zahnbürsten bekannt.Devices for the production of bristle articles are already known from the prior art. especially known toothbrushes.
So beschreibt beispielsweise die US 4,360,236 ein Doppelfasermagazin für eine Maschine zur Bürstenherstellung, das aus zwei Magazinen besteht, die unbeweglich miteinander verbunden sind. Die Magazine sind dabei gegenüber einem Picker- bzw. Bündelzupfer-Segment angeordnet. Jedes Magazin ist nach dieser Offenbarung mit einer Separationsvorrichtung und Drückkomponenten zum Hochdrücken der Fasern in Richtung des Bündelzupfer-Segments ausgestattet. Ferner ist eine Vorrichtung vorgesehen, um abwechselnd Fasern über die Reichweite des Bündelzupfer-Segments hinaus in eines der beiden Faser magazine einzulegen. Das in der US 4,360,236 beschriebene Doppelfasermagazin kommt beispielsweise bei der Zahnbürstenherstellung mit unterschiedlichen Borstenfarben oder unterschiedlichem Borstenmaterial zur Anwendung.For example, US 4,360,236 describes a double fiber magazine for a machine for making brushes, which consists of two magazines that are immovably connected are. The magazines are opposite a picker or bundle swab segment arranged. Each magazine is according to this disclosure with a separation device and pressing components for pushing the fibers toward the bundle swab segment fitted. Furthermore, a device is provided to take turns Fibers beyond the reach of the bundle swab segment into one of the two fibers magazine. The double fiber magazine described in US 4,360,236 comes For example, in the toothbrush production with different bristle colors or different bristle material for use.
Ferner beschreibt die US 5,518,301 ein Verfahren und eine Vorrichtung zum Zuführen von Fasern zu einem Befüllwerkzeug in einer Maschine zum Herstellen von Bürsten. Das Verfahren weist dabei pro Betriebszyklus folgende Schritte auf: Verbringen eines Faserbündels aus einem ausgewählten Faserzufuhrkanal zu einem Befüllwerkzeug mittels einer Bündelaufnahmevorrichtung, die mit zumindest zwei Faserkanälen zusammenarbeitet; Verwenden von beweglichen Schließvorrichtungen für die selektive Zufuhr von Fasern, die mit Zufuhrenden der Faserkanäle zusammenarbeiten und die durch ihre Bewegung garantieren, daß zu einem Zeitpunkt nur Fasern aus einem Faserkanal von der Bündelaufnahmevorrichtung verbracht werden können; Dabei sind die Schließvorrichtungen auf einem gemeinsamen Träger montiert, um bei jedem Betriebszyklus simultan zu arbeiten.Further, US 5,518,301 describes a method and apparatus for feeding Fibers to a filling tool in a machine for making brushes. The procedure has the following steps per operating cycle: Spend a fiber bundle out a selected fiber feed channel to a filling tool by means of a bundle receiving device, which cooperates with at least two fiber channels; Using movable closing devices for the selective supply of fibers with feed ends The fiber channels work together and that through their movement guarantee that to one Time spent only fibers from a fiber channel of the bundle receiving device can be; The locking devices are on a common carrier mounted to operate simultaneously for each cycle of operation.
Die DE 26 43 222 A1 beschreibt ebenfalls ein Verfahren und eine Vorrichtung zur Bürstenherstellung. Dabei weist eine Bürstenherstellungsmaschine ein Borstenmagazin auf, das mit einer bzw. mehreren Stopfeinrichtungen zusammenarbeitet. Ferner weist die Bürstenherstellungsmaschine eine Zuführeinrichtung zum Magazin für gebündelte Borsten und eine Öffnungsvorrichtung für die die Borstenbündel zusammenhaltenden Umhüllungen auf. Die im Übergabebereich am Magazineingang angeordnete Zuführeinrichtung weist ein Transportmittel mit Haltevorrichtungen für Borstenbündel auf, das als Transportband oder als umlaufende Kette ausgebildet ist.DE 26 43 222 A1 also describes a method and a device for brush production. In this case, a brush-making machine on a bristle magazine, which with one or more stuffing devices cooperates. Further, the brush manufacturing machine a feeder to the magazine for bundled bristles and a Opening device for the clusters bundling the bristle bundles. The In the transfer area arranged at the magazine entrance feeder has a means of transport with holding devices for bristle bundles, as a conveyor belt or as a circulating Chain is formed.
Die DE 38 06 160 A1 offenbart eine Vorbearbeitungs- oder Bereitstellungsmaschine für Borsten, wobei die Fasern in der Form zusammengebundener oder umhüllter Borstenbündel zugeführt werden. Bei diesem Verfahren wird die Umhüllung der Borstenbündel automatisch geöffnet und die Fasern werden gereinigt und geordnet, bevor sie in die Faserkanäle einer Bürstenherstellungsmaschine gelangen. Dabei sind die Filamente zum Transport zwischen Flachriemen eingespannt und werden so auf einfache Weise, schubweise dem Arbeitsgang entsprechend, nach vorne bewegt.DE 38 06 160 A1 discloses a pre-processing or provisioning machine for bristles, the fibers being in the form of bonded or wrapped bundles of bristles be supplied. In this method, the wrapping of the bristle bundles becomes automatic open and the fibers are cleaned and sorted before entering the fiber channels of a Get brush making machine. The filaments are for transport between Flat belts are clamped and are thus in a simple way, batchwise the operation accordingly, moved forward.
Ein Nachteil der bekannten Verfahren bzw. der konstruktiven Ausgestaltungen der bekannten Filamentzuführschächte ist es, daß hier Zonen auftreten, in denen sich kein kontinuierlicher Filamentfluß entwickelt. Diese Zonen werden auch als Totzonen bezeichnet, die sich negativ auf die Prozeßsicherheit und die Produktqualität auswirken.A disadvantage of the known methods and the constructive embodiments of the known Filament feed chutes is that here zones occur in which no continuous Filament flow developed. These zones are also referred to as dead zones, themselves have a negative impact on process safety and product quality.
Schließlich ist aus der US 3,367,719 eine Vorrichtung zum Herstellen von Borstenwaren der eingangs beschriebenen Art bekannt, bei der an einer Seite des Filamentenpakets eine Kettenfördereinrichtung ausgebildet ist. Eine sichere und gleichmäßige Förderung scheint hier problematisch.Finally, from US 3,367,719 a device for producing bristles of the initially described type, in which on one side of the Filamentpakets a Chain conveyor is formed. A safe and even promotion seems here problematic.
Aufgabe der vorliegenden Erfindung ist es, eine verbesserte Vorrichtung zum Herstellen von Zahnbürsten zur Verfügung zu stellen, welche die Nachteile des Standes der Technik vermeidet. Diese Vorrichtung soll insbesondere die kostengünstige Herstellung von Borstenware mit hoher Prozeßsicherheit und Produktqualität ermöglichen.The object of the present invention is to provide an improved device for producing To provide toothbrushes, which avoids the disadvantages of the prior art. This device is intended in particular the cost-effective production of bristles with high process reliability and product quality.
Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung zum Herstellen von Borstenwaren, insbesondere Zahnbürsten, mit einer Zuführeinheit für lose in einem Zuführschacht stehende Borstenbündel vorgeschnittener Länge mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung werden in den Unteransprüchen beschrieben.This object is achieved according to the invention by a device for producing bristle articles, in particular toothbrushes, with a feed unit for loose in a feed chute standing bristle bundles precut length with the features of claim 1 solved. Advantageous embodiments and further developments of the invention are set forth in the subclaims described.
Durch die aktive Förderung von Borstenbündeln bzw. Filamentbüscheln durch die auf beiden Seiten des Filamentenschaftes ausgebildeten Fördervorrichtungen werden Tot-räume, in denen kein kontinuierlicher Filamentfluß stattfindet, vermieden. Effekte, die unter "Arching" oder "Bridging" bekannt sind, haben hier keinen Einfluß, da die Filamente von beiden Seiten aktiv gefördert werden. Dabei wird als "Arching" oder "Bridging" ein scheinbares Verklumpen der Borstenbündel bezeichnet, durch welches das Fließen des Festkörpers gestoppt wird. Die Andrückflächen bilden eine seitlich begrenzende Borstenstraße, zwischen der die beiden Seiten des Filamentenpakets mittels durch die Anpreßflächen gebildeten Anpreßdruck anliegen. Auf diese Weise wird eine sichere und gleichmäßige Förderung der Filamente erreicht. Hierbei laufen beide Anpreßflächen synchron bei gleicher Geschwindigkeit.By the active promotion of bristle bundles or filament tufts by on both Side of the filament shaft formed conveyors are dead-spaces, in where no continuous Filamentfluß takes place, avoided. Effects listed under "Arching" or "Bridging", have no influence here, since the filaments are from both sides be actively encouraged. This is called "Arching" or "Bridging" an apparent clumping denotes the bundle of bristles, through which the flow of the solid is stopped. The Andrückflächen form a laterally delimiting bristle street, between the two Said sides of the filament package by means of contact pressure formed by the contact surfaces. In this way, a secure and uniform delivery of the filaments is achieved. Both contact surfaces run synchronously at the same speed.
Außerdem wird durch die aktive Filamentförderung ein schnelleres Ausschieben von Störungen im Filamentbett und damit eine erhöhte Produktqualität gewährleistet. D.h., Bereiche im Filamentzuführschacht, in denen Filamente die aufrechte Orientierung durch äußere Einflüsse verloren haben, werden schneller aus dem Filamentschacht herausgeschoben. Dadurch ergibt sich eine verringerte Störanfälligkeit und erhöhte Prozeßsicherheit. Daneben wird ein symmetrisches Greifen der Filamente aus der Schachtmitte möglich. Dies wird insbesondere dadurch erreicht, daß die gegenüberliegenden Fördervorrichtungen symmetrisch am Schacht angeordnet sind. Eine höhere Konstanz in der Anzahl der Filamente, die bei jedem Vorgang in die Ausnehmungen des Picker-Segments fließen, wird außerdem erreicht.In addition, the active filament delivery accelerates the ejection of disturbances in the filament bed and thus ensures increased product quality. That is, areas in the Filament feed chute, in which filaments the upright orientation by external influences lost, are faster pushed out of the filament shaft. Thereby results in a reduced susceptibility to interference and increased process reliability. Next to it is a Symmetrical gripping of the filaments from the middle of the shaft possible. This will be particular achieved in that the opposite conveying devices symmetrically on Shaft are arranged. A higher consistency in the number of filaments at each Process flow into the recesses of the picker segment is also achieved.
Als weitere vorteilhafte Wirkung wird eine geringere Abhängigkeit vom Filament-Finish-Level erreicht. Dies bedeutet, daß die Zufuhr der Borstenbündel unabhängig vom Filamentherstellungsprozeß und der Art der Filamente mit gleichbleibend hoher Prozeßsicherheit erfolgt. Dadurch können auch schwer fließende Filamente verarbeitet werden. Dies zeigt sich beispielsweise bei der problemlosen Verarbeitung besonders feiner Filamente, deren Durchmesser beispielsweise kleiner als 0,12 mm ist, was etwa 0,005 inch entspricht. Somit wird durch die erfindungsgemäße Vorrichtung eine gesteigerte Produktqualität, höhere Prozeßsicherheit und größere Ausbringung gewährleistet.As a further advantageous effect is a lower dependence on the filament finish level reached. This means that the supply of bristle bundles is independent of the filament production process and the type of filaments with consistently high process reliability takes place. As a result, hard-flowing filaments can be processed. This shows, for example for easy processing of particularly fine filaments, their diameter for example, less than 0.12 mm, which corresponds to about 0.005 inches. Thus, will by the device according to the invention an increased product quality, higher process reliability and ensures greater output.
Ferner wird es durch die erfindungsgemäße Vorrichtung möglich, die erforderliche Zahl von Filamenten pro Bündelzupfer- bzw. pro Picker-Hub bereitzustellen. Die als aktive Zuführung bezeichnete Verwendung einer angetriebenen Fördereinrichtung ist dabei unmittelbar in die Formung der Borstenbündel (Tuft-Formung) einbezogen.Furthermore, it is possible by the device according to the invention, the required number of To provide filaments per bundle swab or per picker stroke. The as active feeder designated use of a driven conveyor is directly in the Shaping the bundles of bristles (Tufting) included.
Dabei wird unter Bündelzupfer-Segment, Picker-Segment oder Picker-Tooling ein Zugriffswerkzeug zum Ergreifen der Tufts bezeichnet, welches diese anschließend an ihren gewünschten Platz auf dem Bürstenträger befördert. Under Bündelzupfer segment, Picker segment or Picker Tooling is an access tool to grasp the tufts, which these subsequently to their desired Carried space on the brush carrier.
Eine weitere vorteilhafte Vorrichtung zum Herstellen von Borstenwaren, sieht die Merkmale des Patentanspruchs 2 vor. Dabei können die Flach- oder Zahnriemen beispielsweise aus mit Gewebe verstärktem elastomeren Kunststoff hergestellt sein. Die Oberfläche kann aufgerauht oder strukturiert sein.A further advantageous device for producing bristle goods, sees the features of claim 2 before. The flat or toothed belt, for example, from fabricated with fabric reinforced elastomeric plastic. The surface can be roughened or be structured.
Durch die Merkmale des Anspruchs 3 verläuft ein büschelartiger Strang von Borsten durch
den von den beiden gegenüberliegenden Andrückflächen gebildeten Schacht. Hierdurch
können in einem Zug im Picker-Segment einzelne Büschel erstellt werden.Due to the features of
Durch die Merkmale des Anspruchs 4 laufen einzelne Borsten in Bewegungsrichtung der Fördereinrichtung, d.h. der zwischen den Andrückflächen gebildete Schacht bzw. Spalt ist gleich groß der Dicke der Borsten, um diese hinter- oder nebeneinander einzeln transportieren zu können.Due to the features of claim 4 individual bristles run in the direction of movement of Conveyor, i. the formed between the Andrückflächen shaft or gap equal to the thickness of the bristles to transport these behind or next to each other individually to be able to.
Eine vorteilhafte Weiterbildung der Vorrichtung zum Herstellen von Borstenwaren, insbesondere
Zahnbürsten, nach Patentanspruch 1 sieht die Merkmale des Patentanspruchs 5 vor.
Dabei können beispielsweise zwei gegenüberliegende bewegliche Andruckelemente bereits
ausreichend sein, zwischen denen der Strom von Filamentbüscheln durch entsprechende
Vorwärts- bzw. Tangentialkräfte quasi hindurchgeschoben wird.An advantageous development of the device for producing bristle goods, in particular
Toothbrushes, according to claim 1 provides the features of
Eine alternative vorteilhafte Vorrichtung zum Herstellen von Borstenwaren sieht die Merkmale
des Patentanspruchs 6 vor. Dabei kann die Fördereinrichtung mit zwei oder mehreren
Rädern aus Metall oder Kunststoff vorgesehen sein.An alternative advantageous apparatus for making bristles sees the features
of
Durch die Merkmale des Patentanspruchs 7 werden die Filamente beidseitig der Fördereinrichtung
gleichmäßig und synchron transportiert, was relative Verschiebungen der einzelnen
Borsten zueinander vermeidet.Due to the features of
Schließlich sieht eine Weiterbildung der erfindungsgemäßen Vorrichtung zum Herstellen von Filamentstreifen die Merkmale des Patentanspruchs 8 vor. Die Austrittsöffnung kann dabei einstellbar ausgebildet sein.Finally, a development of the device according to the invention for the production of Filament strip before the features of claim 8. The outlet opening can thereby be designed adjustable.
Die erfindungsgemäße Vorrichtung eignet sich insbesondere bei Sonderfilamenten (Anspruch 9), da diese aufgrund unterschiedlicher Oberflächen, Querschnitte und Werkstoffe dennoch immer gleichmäßig transportiert werden. The device according to the invention is particularly suitable for special filaments (claim 9), because of different surfaces, cross-sections and materials nevertheless always be transported evenly.
Weitere Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung werden im folgenden mit Bezug auf die beigefügten Zeichnungen beschrieben. Darin zeigen:
- Fig.1
- eine schematische geschnittene Darstellung einer ersten Ausführungsform einer erfindungsgemäßen aktiven Zuführeinheit;
- Fig.2
- eine perspektivische Ansicht einer zweiten Ausführungsform einer erfindungsgemäßen aktiven Zuführeinheit.
- Fig.1
- a schematic sectional view of a first embodiment of an active feed unit according to the invention;
- Fig.2
- a perspective view of a second embodiment of an active feed unit according to the invention.
Fig. 1 zeigt eine schematische geschnittene Darstellung einer ersten Ausführungsform einer erfindungsgemäßen aktiven Zuführeinheit 1. Als aktive Zuführeinheit 1 wird dabei eine angetriebene Fördereinrichtung für Borstenbündel bezeichnet, die ein oberes Förderband 2 und ein unteres Förderband 8 aufweist, die jeweils als angetriebene Flachriemen aus elastomerem Kunststoff ausgebildet sind.Fig. 1 shows a schematic sectional view of a first embodiment of a active feed unit 1 according to the invention as an active feed unit 1 is a driven Conveying device for bristle bundles refers to an upper conveyor belt. 2 and a lower conveyor belt 8, each as a driven flat belt made of elastomeric Plastic are formed.
Das obere Förderband 2 und das untere Förderband 8 sind spiegelsymmetrisch um eine Symmetrieachse 9 angeordnet. Im folgenden wird der Aufbau der Förderbänder 2, 8 daher nur einmal beschrieben.The upper conveyor belt 2 and the lower conveyor belt 8 are mirror-symmetrical about one Symmetry axis 9 arranged. In the following, the structure of the conveyor belts 2, 8 therefore only described once.
Die symmetrisch ausgebildeten Förderbänder 2, 8 weisen jeweils ein Antriebsrad 3 und vier
Umlenkrollen 5 auf. Das Förderband 2, 8 ist derart um die Umlenkrollen 5 geschlungen, daß
parallel zur Symmetrieachse 9 jeweils eine gerade zwischen zwei Umlenkrollen 5 gespannte
Andrückfläche 6 ausgebildet wird. Von der Andrückfläche 6 und der Symmetrielinie 9 beabstandet
ist das Antriebsrad 3 angeordnet, das von dem Förderband 2, 8 nahezu um den
halben Umfang umschlungen ist. An das Antriebsrad 3 schließt sich eine weitere Umlenkrolle
5 an, die jedoch von außen auf das Förderband 2, 8 wirkt und daher als Andrückrolle
dient. Auf die Andrückrolle folgt eine weitere Umlenkrolle 5, die das Förderband 2, 8 in
Richtung der Andrückfläche 6 umlenkt.The symmetrically shaped conveyor belts 2, 8 each have a
Das obere Förderband 2 und das untere Förderband 8 dienen dabei dem beschädigungsfreien
Transport von lose in einem Zuführschacht 21 stehenden Borsten 10 vorgeschnittener
Länge, die auch als Filamente oder Strands bezeichnet werden. Die vielen Borsten 10 werden
dabei durch die von den Andrückflächen 6, 6 aufgebrachten tangentialen Kräfte entlang
der Symmetrielinie 9 in Pfeilrichtung A bewegt und bilden förmlich eine durch die Andrückflächen
6 seitlich begrenzte Borstenstraße 20. Die Borsten 10 verlaufen in Fig. 1 senkrecht
zur Pfeilrichtung A, so daß man in Fig. 1 nur die Schnittflächen der Enden der Borsten 10
erkennt, die hier als Punkte dargestellt sind und in Wirklichkeit eng aneinander liegen.The upper conveyor belt 2 and the lower conveyor belt 8 serve the damage-free
Transport of loose in a
In einem anderen Ausführungsbeispiel ist es auch denkbar, daß nur einzelne Borsten 10 die
Borstenstraße 20 passieren, d.h. die Borstenstraße 20 ist nicht breiter als der Durchmesser
der einzelnen Borsten 10 und die einzelnen Borsten 10 werden hintereinander durch die
sehr schmale Borstenstraße 20 transportiert. Am Ende werden die Borsten 10 in eine Ausnehmung
zur Bildung eines Büschels 25 gefördert, was allerdings in den Figuren nicht dargestellt
ist. Ist eine Ausnehmung gefüllt, wird sie seitlich verschoben und die nächste Ausnehmung
kommt auf die Höhe der sehr schmalen Borstenstraße 20 und kann mit Borsten 10
gefüllt werden.In another embodiment, it is also conceivable that only
Am Ende der Andrückfläche 6 treffen nach Fig. 1 die Borsten 10 auf eine Austrittsöffnung 7,
die einen vorbestimmten Durchmesser aufweist. An dieser Stelle befindet sich das mit Ausnehmungen
24 versehene Picker-Segment 22, in dem die Borsten 10 zu Borstenbündeln 25
zusammengefaßt werden und zur Weiterverarbeitung beispielsweise in "Mold bars" gebracht
werden, wo dann ihre Enden mit Kunststoff zur Bildung eines kompletten Zahnbürstenkopfes
umspritzt werden.At the end of the
Fig. 2 zeigt eine perspektivische Ansicht einer zweiten Ausführungsform einer erfindungsgemäßen
aktiven Zuführeinheit 15. Die Zuführeinheit 15 gemäß dieser Ausführungsform
weist eine Grundplatte 11 und eine Abdeckplatte 12 auf. Die Grundplatte 11 und die Abdeckplatte
12 sind dabei aus massivem spanabhebend bearbeitetem Metall hergestellt. Zwischen
der Grundplatte 11 und der Abdeckplatte 12 sind ein rechtes Zahnrad 14 und ein linkes
Zahnrad 15 mit Rillen 23 drehbar angeordnet, in denen die Borsten 10 zum Transport
hineingleiten und in Richtung A bewegt werden. Die beiden Zahnräder 14, 15 werden über
zwei synchronisierte Antriebswellen angetrieben und stehen nicht im Zahneingriff miteinander,
sondern zwischen dem rechten Zahnrad 14 und dem linken Zahnrad 15 ist ein Spalt 19
vorgesehen, durch den die lose in einem Zuführschacht stehenden Borsten (nicht dargestellt)
vorgeschnittener Länge, die auch als Filamentbüschel oder Strands bezeichnet werden,
direkt einem Picker-Segment, das die Borstenbündel greift, zugeführt werden. Die
Zahnräder 14, 15 begrenzen diesen Spalt 19 seitlich und dienen als Andrückflächen 13, so
daß sich auch hier in diesem Bereich, ähnlich wie oben zu Fig. 1 beschrieben, eine sich zum
Spalt 19 verjüngende Borstenstraße (nicht dargestellt) bildet. Fig. 2 shows a perspective view of a second embodiment of an inventive
Durch die sich drehenden Zahnräder 14, 15 werden auf die Borsten an den Andrückflächen
13, 13 tangentiale Kräfte aufgebracht, wodurch sich die Borsten in Pfeilrichtung A bewegen.
Hierdurch wird eine aktive Zuführeinheit realisiert und das Bilden von Totzonen im Borstenbündelfluß
verhindert. Dabei dreht das linke Zahnrad 15 entgegen und das rechte Zahnrad
14 im Uhrzeigersinn in gleicher Umdrehungsgeschwindigkeit bzw. Stop- and Go-Zeit.By the rotating
Claims (9)
- A device for the manufacture of bristle products, in particular toothbrushes, with a feed unit (1, 16) for precut lengths of upstanding bristles (10) arranged loosely in a supply duct (21, 26), said bristles being routed directly to a picker segment (22) picking up the bristles (10) and combining them into tufts (25), with the end of the supply duct (21, 26) close to the picker segment (22) or another processing station including a driven conveying device (2, 8; 14, 15),
characterized in that the conveying device (2, 8) consists of opposite pressure surfaces (6, 6), with the bristles (10) being arranged therebetween. - The device for the manufacture of bristle products, in particular toothbrushes, according to patent claim 1,
characterized in that the pressure surfaces (6, 6) are formed by flat or toothed belts (2, 8). - The device according to patent claim 1,
characterized in that the longitudinal direction of the individual bristles (10) extend at right angle to the direction of motion of the pressure surfaces (6, 6). - The device according to patent claim 1,
characterized in that the longitudinal direction of the individual bristles (10) extend in parallel with the direction of motion of the pressure surfaces (6, 6). - The device for the manufacture of bristle products, in particular toothbrushes, according to patent claim 1,
characterized in that the driven conveying device (2, 8; 14, 15) includes pressure elements (13) for the application of transfer forces to the circumferential surface of the outer lying bristles (10). - The device for the manufacture of bristle products, in particular toothbrushes, according to patent claim 1,
characterized in that the conveying device (14, 15) is constructed as opposite gears or structured wheels having grooves (23) adapted to receive the bristles (10) therebetween. - The device for the manufacture of bristle products, in particular toothbrushes, according to any one of the preceding patent claims,
characterized in that the conveying device (2, 8; 14, 15) is adapted to be synchronized with the subsequent sequence of operations. - The device for the manufacture of bristle products, in particular toothbrushes, according to any one of the preceding patent claims,
characterized in that, for the manufacture of filament strands, the exit opening of the driven conveying device is tapered in conformity with the desired thickness of the filament strand. - The device for the manufacture of bristle products, in particular toothbrushes, according to any one of the preceding patent claims,
characterized in that the driven conveying device (2, 8; 14, 15) is provided for the processing of special filaments.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10143674 | 2001-09-06 | ||
| DE10143674A DE10143674A1 (en) | 2001-09-06 | 2001-09-06 | Device for the production of bristle goods, in particular toothbrushes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1290961A1 EP1290961A1 (en) | 2003-03-12 |
| EP1290961B1 true EP1290961B1 (en) | 2005-10-26 |
Family
ID=7697916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02018309A Expired - Lifetime EP1290961B1 (en) | 2001-09-06 | 2002-08-14 | Apparatus for manufacturing brushware, in particular toothbrushes |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6869148B2 (en) |
| EP (1) | EP1290961B1 (en) |
| AT (1) | ATE307512T1 (en) |
| DE (2) | DE10143674A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9848959B2 (en) | 2007-07-05 | 2017-12-26 | Orthoaccel Technologies, Inc. | Massaging or brushing bite plates |
| DE202007014431U1 (en) * | 2007-10-15 | 2008-01-10 | Firma G.B. Boucherie N.V. | Tamping machine for brooms or brushes |
| ITUB20150400A1 (en) * | 2015-05-11 | 2016-11-11 | Fabio Civiero | APPARATUS FOR THE CONTROLLED AND AUTOMATED DOSING AND MIXING OF BRISTLES FOR BRUSHES |
| CN107114907B (en) * | 2017-07-04 | 2023-03-24 | 石贤超 | Automatic bristle loading equipment for paint brush head |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3367719A (en) * | 1966-06-27 | 1968-02-06 | Carlson Tool & Machine Co | Bristle magazine for brushmaking machine |
| DE2643222A1 (en) * | 1976-09-25 | 1978-04-06 | Zahoransky Anton Fa | BRUSHMAKING MACHINE AND PROCESS FOR BRUSHMAKING |
| DE2911668A1 (en) * | 1979-03-24 | 1980-09-25 | Boucherie Nv G B | DOUBLE FIBER MAGAZINE FOR BRUSH PRODUCTION MACHINES |
| DE3164495D1 (en) * | 1980-02-26 | 1984-08-09 | Boucherie Nv G B | Bristles feeding device for brush making machines |
| DE3242044A1 (en) * | 1982-11-13 | 1984-05-17 | Fa. Anton Zahoransky, 7868 Todtnau | Feed device |
| DE3424681A1 (en) * | 1984-07-05 | 1986-02-06 | Fa. Anton Zahoransky, 7868 Todtnau | Brush manufacturing machine |
| BE1000367A4 (en) * | 1987-03-06 | 1988-11-08 | Boucherie Nv G B | Method for feeding of fibre to brush manufacturing plant and device applying this process. |
| EP0405204B1 (en) * | 1989-06-24 | 1994-09-07 | Frisetta GmbH | Method and apparatus for forming zones or tufts of bristles |
| BE1008378A3 (en) * | 1994-05-09 | 1996-04-02 | Boucherie Nv G B | Method and device for supplying fibers to a filling tool AT A brush manufacturing MACHINE. |
| DE29514993U1 (en) * | 1995-09-19 | 1997-01-23 | Zahoransky Anton Gmbh & Co | Device for temporarily storing brush bodies |
-
2001
- 2001-09-06 DE DE10143674A patent/DE10143674A1/en not_active Ceased
-
2002
- 2002-08-14 DE DE50204664T patent/DE50204664D1/en not_active Expired - Lifetime
- 2002-08-14 EP EP02018309A patent/EP1290961B1/en not_active Expired - Lifetime
- 2002-08-14 AT AT02018309T patent/ATE307512T1/en active
- 2002-09-06 US US10/236,121 patent/US6869148B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US6869148B2 (en) | 2005-03-22 |
| DE50204664D1 (en) | 2005-12-01 |
| EP1290961A1 (en) | 2003-03-12 |
| US20030042786A1 (en) | 2003-03-06 |
| DE10143674A1 (en) | 2003-03-27 |
| ATE307512T1 (en) | 2005-11-15 |
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