EP2557961A1 - Apparatus for producing bristle arrangements for brushes - Google Patents

Apparatus for producing bristle arrangements for brushes

Info

Publication number
EP2557961A1
EP2557961A1 EP11710696A EP11710696A EP2557961A1 EP 2557961 A1 EP2557961 A1 EP 2557961A1 EP 11710696 A EP11710696 A EP 11710696A EP 11710696 A EP11710696 A EP 11710696A EP 2557961 A1 EP2557961 A1 EP 2557961A1
Authority
EP
European Patent Office
Prior art keywords
bristle
bundle
bundles
hollow
contour
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
EP11710696A
Other languages
German (de)
French (fr)
Other versions
EP2557961B1 (en
Inventor
Bernd Stein
Bernhard Rees
Ingo Kumpf
Florian Kiefer
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.)
Zahoransky AG
Original Assignee
Zahoransky AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zahoransky AG filed Critical Zahoransky AG
Publication of EP2557961A1 publication Critical patent/EP2557961A1/en
Application granted granted Critical
Publication of EP2557961B1 publication Critical patent/EP2557961B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/04—Machines for inserting or fixing bristles in bodies
    • A46D3/045—Machines for inserting or fixing bristles in bodies for fixing bristles by fusing or gluing to a body
    • 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
    • A46D3/04—Machines for inserting or fixing bristles in bodies

Definitions

  • the invention relates to a device for producing bristle fields for brushes, in particular toothbrushes, with a bristle supply and a device for removing individual bristle bundles from the bristle supply and a transport device for transporting the bristle bundles through at least one hollow line by means of a gas or Air flow in perforations of a bundle plate.
  • Such a device is known, for example, from EP 0 405 204 B1.
  • several filament bundles are transported via hoses into a carrier plate.
  • the filament bundles are then fused with a thermoplastic carrier plate and / or encapsulated with plastic material to form a brush head.
  • the individual bristle bundles each have a round cross section.
  • more complex bristle fields are nowadays desired, in which at least individual bristle bundles have a non-circular cross-section, for example rectangular or triangular.
  • the device for removing the bristle bundles from the bristle supply has at least one bundle receptacle, and that the bundle delaufnähme (s) of the device, the inner contour of the hollow line (s) and the perforations of the bundle holding plate are each contoured in accordance with the desired in the bristle field bundle contour.
  • the bundle of bristles is brought into the desired shape, which keeps it to the bundle holding plate during the entire transport.
  • the shaping of the bundle takes place directly on removal of the corresponding amount of bristle from the bristle supply solely by introducing the bristle filaments into the bundle receptacle.
  • Elaborate deformations of the bristle bundle by transferring the bristle bundle from a holding plate into a further holding plate with correspondingly contoured receiving openings by means of structurally complex transfer devices are not required.
  • An embodiment of the device according to the invention is claimed for the independent protection, provides that the device for removing the bristle bundles from the bristle supply at least one bundle receptacle that the inner contour of the hollow line (s) in the course up to the discharge end of the hollow line a contour change towards a bundle contour desired in the bristle field, and that the perforations of the bundle holding plate for receiving a bristle bundle formed in a hollow line are contoured in each case corresponding to the desired bundle contour.
  • the contouring of the bristle bundle takes place during transport in the hollow conduit.
  • the bundles of bristles are overmolded after assembly into a bristle field to form a brush head with plastic material.
  • the bundle plate a compactor plate downstream, the perforations to Receiving bristle bundles whose cross-sections are each smaller than the cross-section of the supplied to the respective hole bundle of bristles, and that a device for passing the bristle bundles is provided by the bundle holding plate to the compressor plate.
  • the bundles of bristles are compacted, that is to say the entire bristle bundle is slightly reduced in terms of its outer circumference and the distance of the individual bristle filaments of a bristle bundle from one another is thereby reduced.
  • This can be used in the subsequent encapsulation of the bristle bundles with plastic material to form a brush head or the entire brush body with high injection pressure without the risk that spray material pressed through the bristle bundles through the outside and the brush is thus unusable.
  • the transport device can have a hollow line for a bristle bundle. Its discharge-side end and the bundle holding plate may be positionable relative to each other to successively all perforations of the bundle holding plate with bristle bundles to fill.
  • the transport device In order to enable a faster filling of all perforations of the bundle holding plate with bristle bundles, it is expedient for the transport device to have a number of hollow lines adapted to the number of perforations of the bundle holding plate. Thus, all holes can be filled at the same time.
  • hollow tubes are hoses made of flexible material.
  • hoses made of plastic can be used.
  • the hollow pipes can also be pipe joints made of steel, stainless steel or other metal.
  • Plastic hoses require a certain thickness of material in order to withstand the pressure during bundle transport by means of gas or air flow.
  • their material thickness and thus their outer diameter can be dimensioned to be smaller, so that they can be arranged closer to each other at the end and the perforations of the bundle holding plate can likewise be set closer.
  • the bundle holding plate can have smaller overall dimensions, which reduces the space requirement of the device, and bristle fields with bristle bundles arranged closer to one another are possible.
  • the bundle holding plate can be a brush part body, an injection mold insert or an intermediate plate which can be transferred to a further processing device.
  • the bundle holding plate serves to receive the bristle bundles and is itself part of the finished brush during encapsulation of the bundle ends.
  • a mold insert is the bundle plate with the therein held bristle bundles in an injection mold and after the encapsulation of the bundle ends, the bundle holding plate is removed from the bristle bundles and the then finished brush.
  • the bundle holding plate is formed as an intermediate plate, it can be transferred to a further processing device and there transferred to a brush part body, an injection mold insert or initially, as described above, to a compactor plate.
  • the plurality of hollow conduits of the transport device each open into a guide channel of a guide element, wherein the guide channels are each formed as through holes and the Abvant rocken distances between the guide channels to each other are less than the feed side distances.
  • the distances between the guide channels can be greater than one another in order to allow a secure connection of the hollow lines.
  • the guide channels can approach each other and be arranged on the discharge side very close to each other. Since no connection points are required on the discharge side, the distance between the guide channels is limited only by the production technology for the guide element.
  • the guide element may be formed in one or more parts.
  • the guide element may consist of two sub-blocks, with a first sub-block rectilinear, but Has funnel-shaped converging guide channels for reducing the hole spacing and an adjoining second part block parallel to each other extending guide channels.
  • the guide channels thereof are contoured.
  • the guide channels it is also possible for the guide channels to be formed for reshaping the bristle bundles transported in them, and for their inner contours to undergo a contour change in the course from the feed end to the discharge end toward a desired bundle contour in the bristle field.
  • Fig. 17 hollow conduits with the insertion from the end to the delivery end changing inner contour
  • Fig. 18 is a guide element with guide channels. ne throughout with 1 designated device for the manufacture of Bristle fields for brushes, in particular toothbrushes, has, according to FIGS. 1 to 8, a bristle supply 2 and a device 3 for removing individual bristle bundles 4 from the bristle supply 2.
  • the removal device 3 in this case has a circular disk 5 with three bundle receptacles 6 as a bundle divider.
  • the circular disk 5 is pivotable between a bundle receiving position (FIGS. 1, 3, 5, 7) and a bundle dispensing position (FIGS. 2, 4, 6, 8) (arrow Pf).
  • the bundle receptacles 6 are each contoured according to the desired bundle contour of the finished brush.
  • the individual bundle shots 6 different contours (rectangular, circular, triangular), while the circular discs 5 of the removal devices 3 according to Figures 3 and 4 (triangular), 5 and 6 (circular) or 7 and 8 (rectangular) each have similar contoured bundle receptacles 6.
  • the circular disk 5 After removing the bristle bundles 4 from the bristle supply 2, the circular disk 5 is pivoted by 1 80 °, wherein the bundle receptacles 6 run past a fixed counterpart 7, whereby a falling out of the bristle bundles 4 is avoided from the bundle receptacles 6.
  • a transfer position of the circular disk 5 (FIGS. 2, 4, 6, 8)
  • the bundles of bristles 4 are transferred with a transfer device, not shown, into hollow lines 8 of a transport device (not shown).
  • a movable counterpart 9 is brought into a position spaced from the circular disc 5 position to release the bundle receptacles 6.
  • the hollow conduits 8 each have an inner contour adapted to the contour of the respective bristle bundle 4.
  • the bundles of bristles 4 are transported through the hollow conduits 8 while maintaining their contouring, and can be ejected from the hollow conduits 8 in the correspondingly congruent manner. turator perforations of a bundle holding plate, not shown, are passed.
  • FIGS. 9 to 13 enlarged cross-sections of hollow pipes 8 are shown, from which the adjustment of their inner contour 10 to the contour of the bristle bundle 4 shows more clearly. While the hollow conduits 8 according to FIGS. 9 to 11 have a round outer cross section, according to FIGS. 12 and 1 . 3, the outer contour of the hollow line 8 adapted to the inner contour. As a result, the cost of materials for the hollow conduit 8 can be reduced.
  • FIGS. 14 to 17 each show, in a partial sectional view, a hollow conduit 8, in which the inner contour 10 of the hollow conduit 8 changes its contour in the course of the insertion device facing insertion end 11 to the discharge end 12 of the hollow conduit 8, towards a bundle desired in the bristle field.
  • the bundles of bristles 4 are each removed with approximately circular contoured bundle receptacles 6 according to Figures 5 and 6 from the bristle supply 2 and transferred to the hollow lines 8, where they are transformed during transport according to the changing inner contour 10.
  • the outer contour also changes from the insertion end 11 towards the discharge end 12, as a result of which the material requirement for the hollow conduit 8 is reduced.
  • the contoured bristle bundles 4 of the exemplary embodiments according to FIGS. 14 to 17 are introduced from the hollow conduits 8 into correspondingly contoured perforations of a bundle holding plate (not shown).
  • the hollow conduits 8 have a certain extent. teriallands, whereby the density of the perforations of a subsequent bundle plate is limited.
  • the plurality of hollow conduits 8 of the transport device each open into a guide channel 13 of a guide member 14, wherein the guide channels 13 each as Through openings are formed and the removal-side distances of the guide channels 13 to each other are less than the feed side distances.
  • the distances of the guide channels 3 are greater to each other to allow a secure connection of the hollow lines 8.
  • the hollow conduits 8 are introduced into receptacles with a widened cross section of the guide element 14.
  • the guide channels 13 approach each other and are disposed on the discharge side very close to each other. Since abmelted crystal no connection points are needed, the distance between the guide channels 13 is limited only by the manufacturing technology for the guide member 14.
  • the guide element 14 according to FIG. 18 is designed in several parts with a first sub-block 15 with rectilinear, but funnel-shaped converging guide channels 13 for reducing the hole spacing and an adjoining second sub-block 16 with guide channels 13 running parallel to one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)

Abstract

An apparatus (1) for producing bristle arrangements for brushes, in particular toothbrushes, having a bristle supply (2) and an apparatus (3) for extracting individual bundles (4) of bristles from the bristle supply (2), and also having a transporting apparatus for transporting the bundles (4) of bristles by way of at least one hollow line (8) by means of a stream of gas or air in perforations in a bundle-retaining plate, is characterized in that the apparatus (3) for extracting the bundles (4) of bristles from the bristle supply (2) has at least one bundle holder (6), and in that the bundle holder(s) (6) of the extraction means (3), the inner contour (10) of the hollow line(s) (8) and the perforations in the bundle-retaining plate are each contoured in a manner corresponding to the bundle contour which is desired in the bristle arrangement.

Description

Vorrichtung zum Herstellen von Borstenfeldern für Bürsten  Device for producing bristle fields for brushes
Die Erfindung bezieht sich auf eine Vorrichtung zum Herstellen von Borstenfeldern für Bürsten, insbesondere Zahnbürsten, mit einem Borstenvorrat und einer Vorrichtung zum Entnehmen einzel- ner Borstenbündel aus dem Borstenvorrat sowie einer Transport- Vorrichtung zum Transportieren der Borstenbündel durch zumindest eine Hohlleitung mittels eines Gas- oder Luftstromes in Lochungen einer Bündelhalteplatte. The invention relates to a device for producing bristle fields for brushes, in particular toothbrushes, with a bristle supply and a device for removing individual bristle bundles from the bristle supply and a transport device for transporting the bristle bundles through at least one hollow line by means of a gas or Air flow in perforations of a bundle plate.
Eine solche Vorrichtung ist beispielsweise aus der EP 0 405 204 B1 bekannt. Dabei werden über Schläuche mehrere Filamentbündel in eine Trägerplatte transportiert. Die Fila- mentbündel werden anschließend mit einer thermoplastischen Trägerplatte verschmolzen und/oder zur Bildung eines Bürstenkopfes mit Kunststoffmaterial umspritzt. Die einzelnen Borstenbündel haben dabei jeweils einen runden Querschnitt. Insbesondere bei Zahnbürsten sind heutzutage jedoch komplexere Borstenfelder gewünscht, bei denen zumindest einzelne Borstenbündel einen nicht-kreisförmigen Querschnitt aufweisen, beispielsweise rechteckig oder dreieckig. Such a device is known, for example, from EP 0 405 204 B1. In this case, several filament bundles are transported via hoses into a carrier plate. The filament bundles are then fused with a thermoplastic carrier plate and / or encapsulated with plastic material to form a brush head. The individual bristle bundles each have a round cross section. In the tooth brushes, however, more complex bristle fields are nowadays desired, in which at least individual bristle bundles have a non-circular cross-section, for example rectangular or triangular.
Es besteht daher die Aufgabe, eine Vorrichtung der eingangs genannten Art zu schaffen, bei der auf einfach Weise die Bildung von Borstenfeldern mit beliebig konturierten Borstenbündeln möglich ist. It is therefore the object to provide a device of the aforementioned type, in which the formation of bristle fields with arbitrarily contoured bristle bundles is possible in a simple manner.
Die erfindungsgemäße Lösung dieser Aufgabe besteht darin, dass die Vorrichtung zum Entnehmen der Borstenbündel aus dem Borstenvorrat zumindest eine Bündelaufnahme hat, und dass die Bün- delaufnähme (n) der Vorrichtung, die Innenkontur der Hohlleitung (en) und die Lochungen der Bündelhalteplatte jeweils entsprechend der im Borstenfeld gewünschten Bündel-Kontur kon- turiert sind. The achievement of this object is that the device for removing the bristle bundles from the bristle supply has at least one bundle receptacle, and that the bundle delaufnähme (s) of the device, the inner contour of the hollow line (s) and the perforations of the bundle holding plate are each contoured in accordance with the desired in the bristle field bundle contour.
Somit wird bereits beim Entnehmen eines Borstenbündels aus dem Borstenvorrat durch die Konturierung der Bündelaufnahme, die insbesondere eine Abteilkerbe eines Kreisbogen-Abteilers sein kann, das Borstenbündel in die gewünschte Form gebracht, die es während dem gesamten Transport bis zur Bündelhalteplatte beibe- hält. Die Formgebung des Bündels erfolgt direkt beim Entnehmen der entsprechenden Borstenmenge aus dem Borstenvorrat allein durch das Einbringen der Borstenfilamente in die Bündelaufnahme. Aufwändige Umformungen des Borstenbündels durch Übergeben des Borstenbündels von einer Halteplatte in eine weitere Halteplatte mit entsprechend konturierten Aufnahmeöffnungen mit Hilfe von konstruktiv aufwändigen Umsetzeinrichtungen sind nicht erforderlich. Thus, even when removing a bundle of bristles from the bristle supply by contouring the bundle receptacle, which may be in particular a compartment notch of a circular arc divider, the bundle of bristles is brought into the desired shape, which keeps it to the bundle holding plate during the entire transport. The shaping of the bundle takes place directly on removal of the corresponding amount of bristle from the bristle supply solely by introducing the bristle filaments into the bundle receptacle. Elaborate deformations of the bristle bundle by transferring the bristle bundle from a holding plate into a further holding plate with correspondingly contoured receiving openings by means of structurally complex transfer devices are not required.
Eine Ausgestaltung der erfindungsgemäßen Vorrichtung, für die eigenständiger Schutz beansprucht wird, sieht vor, dass die Vorrichtung zum Entnehmen der Borstenbündel aus dem Borstenvorrat zumindest eine Bündelaufnahme hat, dass die Innenkontur der Hohlleitung (en) im Verlauf bis zum Abgabeende der Hohlleitung eine Konturänderung hin zu einer im Borstenfeld ge- wünschten Bündel-Kontur erfährt, und dass die Lochungen der Bündelhalteplatte zur Aufnahme eines in einer Hohlleitung umgeformten Borstenbündels jeweils entsprechend der gewünschten Bündel-Kontur konturiert sind. Bei dieser Ausführungsform erfolgt die Konturierung des Borstenbündels während dem Transport in der Hohlleitung. Somit sind ebenfalls keine zusätzlichen Vorrichtungen zur Umformung und kein zusätzlicher Platzbedarf erforderlich . In beiden Ausführungsformen ist ein einfacher, kostengünstiger und platzsparender Aufbau der Vorrichtung möglich. An embodiment of the device according to the invention, is claimed for the independent protection, provides that the device for removing the bristle bundles from the bristle supply at least one bundle receptacle that the inner contour of the hollow line (s) in the course up to the discharge end of the hollow line a contour change towards a bundle contour desired in the bristle field, and that the perforations of the bundle holding plate for receiving a bristle bundle formed in a hollow line are contoured in each case corresponding to the desired bundle contour. In this embodiment, the contouring of the bristle bundle takes place during transport in the hollow conduit. Thus, no additional devices for forming and no additional space required are also required. In both embodiments, a simple, inexpensive and space-saving construction of the device is possible.
Die Borstenbündel werden nach dem Zusammenstellen zu einem Borstenfeld zur Bildung eines Bürstenkopfes mit Kunststoffmaterial umspritzt. Um dabei zu verhindern, dass durch den hohen Spritzdruck Spritzmaterial durch die Filamente der Borstenbündel hindurch tritt und an der Bürstenoberfläche sichtbar wird, was unschön aussieht oder die Bürste unbrauchbar machen kann, ist es zweckmäßig, wenn der Bündelhalteplatte eine Verdichterplatte nachgeordnet ist, die Lochungen zur Aufnahme von Borstenbündeln aufweist, deren Querschnitte jeweils kleiner sind als der Querschnitt des an die jeweilige Lochung zugeführten Borstenbündels, und dass eine Vorrichtung zum Weitergeben der Borstenbündel von der Bündelhalteplatte an die Verdichterplatte vorgesehen ist. The bundles of bristles are overmolded after assembly into a bristle field to form a brush head with plastic material. In order to prevent that by the high injection pressure spray material passes through the filaments of the bristle bundles and is visible on the brush surface, which looks ugly or can make the brush useless, it is expedient if the bundle plate a compactor plate downstream, the perforations to Receiving bristle bundles whose cross-sections are each smaller than the cross-section of the supplied to the respective hole bundle of bristles, and that a device for passing the bristle bundles is provided by the bundle holding plate to the compressor plate.
Beim Überführen der Borstenbündel in die Verdichterplatte werden die Borstenbündel in sich verdichtet, das heißt das gesamte Borstenbündel wird hinsichtlich seines Außenumfangs etwas ver- kleinert und so der Abstand der einzelnen Borstenfilamente eines Borstenbündels zueinander verringert. Dadurch kann beim anschließenden Umspritzen der Borstenbündel mit Kunststoffmaterial zur Bildung eines Bürstenkopfes oder des gesamten Bürstenkörpers mit hohem Spritzdruck gearbeitet werden, ohne dass die Gefahr besteht, dass Spritzmaterial durch die Borstenbündel hindurch nach Außen gedrückt und die Bürste damit unbrauchbar wird .  When transferring the bundles of bristles into the compactor plate, the bundles of bristles are compacted, that is to say the entire bristle bundle is slightly reduced in terms of its outer circumference and the distance of the individual bristle filaments of a bristle bundle from one another is thereby reduced. This can be used in the subsequent encapsulation of the bristle bundles with plastic material to form a brush head or the entire brush body with high injection pressure without the risk that spray material pressed through the bristle bundles through the outside and the brush is thus unusable.
Um die Borstenbündel der Bündelhalteplatte zuzuführen, kann die Transport-Vorrichtung eine Hohlleitung für ein Borstenbündel aufweisen. Dessen abgabeseitiges Ende und die Bündelhalteplatte können relativ zueinander positionierbar sein, um nacheinander alle Lochungen der Bündelhalteplatte mit Borstenbündeln zu füllen. In order to feed the bristle bundles to the bundle-holding plate, the transport device can have a hollow line for a bristle bundle. Its discharge-side end and the bundle holding plate may be positionable relative to each other to successively all perforations of the bundle holding plate with bristle bundles to fill.
Um ein schnelleres Befüllen aller Lochungen der Bündelhalteplatte mit Borstenbündeln zu ermöglichen, ist es zweckmäßig, wenn die Transport-Vorrichtung eine der Anzahl der Lochungen der Bündelhalteplatte angepasste Anzahl von Hohlleitungen aufweist. Somit können alle Lochungen zeitgleich befüllt werden. In order to enable a faster filling of all perforations of the bundle holding plate with bristle bundles, it is expedient for the transport device to have a number of hollow lines adapted to the number of perforations of the bundle holding plate. Thus, all holes can be filled at the same time.
Ein konstruktiv einfacher und kostengünstiger Aufbau ergibt sich, wenn die Hohlleitungen Schläuche aus flexiblem Material sind. Insbesondere können Schläuche aus Kunststoff verwendet werden . A structurally simple and cost-effective construction results when the hollow tubes are hoses made of flexible material. In particular, hoses made of plastic can be used.
Die Hohlleitungen können aber auch Rohrverbindungen aus Stahl, Edelstahl oder sonstigem Metall sein. KunststoffSchläuche erfordern eine gewisse Materialstärke, um dem Druck beim Bündeltransport mittels Gas- oder Luftstrom standhalten zu können. Bei Hohlleitungen aus Metall kann deren Materialstärke und somit ihr Außendurchmesser geringer dimensioniert sein, so dass diese Endseitig näher aneinander angeordnet werden können und die Lochungen der Bündelhalteplatte ebenfalls enger gesetzt sein können. Dadurch kann die Bündelhalteplatte insgesamt geringere Abmessungen aufweisen, was den Platzbedarf der Vorrichtung reduziert und es sind Borstenfelder mit enger zueinan- der angeordneten Borstenbündeln möglich. The hollow pipes can also be pipe joints made of steel, stainless steel or other metal. Plastic hoses require a certain thickness of material in order to withstand the pressure during bundle transport by means of gas or air flow. In the case of metal hollow conduits, their material thickness and thus their outer diameter can be dimensioned to be smaller, so that they can be arranged closer to each other at the end and the perforations of the bundle holding plate can likewise be set closer. As a result, the bundle holding plate can have smaller overall dimensions, which reduces the space requirement of the device, and bristle fields with bristle bundles arranged closer to one another are possible.
Die Bündelhalteplatte kann ein Bürsten-Teilkörper, ein Spritzform-Einsatz oder eine an eine Weiterbearbeitungseinrichtung übergebbare Zwischenplatte sein. The bundle holding plate can be a brush part body, an injection mold insert or an intermediate plate which can be transferred to a further processing device.
Als Bürsten-Teilkörper dient die Bündelhalteplatte zur Aufnahme der Borstenbündel und wird beim Umspritzen der Bündel-Enden selbst Teil der fertigen Bürste. As a brush-part body, the bundle holding plate serves to receive the bristle bundles and is itself part of the finished brush during encapsulation of the bundle ends.
Als Spritzform-Einsatz wird die Bündelhalteplatte mit den darin gehaltenen Borstenbündeln in eine Spritzform eingesetzt und nach dem Umspritzen der Bündel-Enden wird die Bündelhalteplatte von den Borstenbündeln und der dann fertigen Bürste entfernt. Ist die Bündelhalteplatte als Zwischenplatte ausgebildet, kann diese an eine Weiterbearbeitungseinrichtung übergeben werden und dort an einen Bürsten-Teilkörper, einen Spritzform-Einsatz oder zunächst, wie vorbeschrieben, an eine Verdichterplatte übergeben werden. Durch die Verwendung von Schläuchen, aber auch von Rohrverbindungen aus Metall als Hohlleitungen zum Transport der Borstenbündel ergeben sich geometrische Schwierigkeiten beim Erzeugen dichter Borstenfelder, da die Hohlleitungen abgabeseitig befestigt werden müssen und hierzu Platz benötigt wird. Der ge- ringst mögliche Lochabstand ist dabei zudem durch die Materialstärke der Hohlleitungen begrenzt. As a mold insert is the bundle plate with the therein held bristle bundles in an injection mold and after the encapsulation of the bundle ends, the bundle holding plate is removed from the bristle bundles and the then finished brush. If the bundle holding plate is formed as an intermediate plate, it can be transferred to a further processing device and there transferred to a brush part body, an injection mold insert or initially, as described above, to a compactor plate. Through the use of hoses, but also of pipe joints made of metal as hollow conduits for transporting the bristle bundles, geometric difficulties arise in the production of dense bristle fields, since the hollow conduits must be fastened on the discharge side and this space is required. The smallest possible hole spacing is also limited by the material thickness of the hollow conduits.
Um Bürsten mit Borstenfeldern herzustellen, deren Borstenbündel sehr dicht aneinander angeordnet sind, ist es daher vorteilhaft, wenn die mehreren Hohlleitungen der Transport-Vorrichtung jeweils in einen Führungskanal eines Führungselements münden, wobei die Führungskanäle jeweils als Durchgangsöffnungen ausgebildet sind und die abführseitigen Abstände der Führungskanäle zueinander geringer sind als die zuführseitigen Abstände.  In order to produce brushes with bristle fields whose bristle bundles are arranged very close to each other, it is therefore advantageous if the plurality of hollow conduits of the transport device each open into a guide channel of a guide element, wherein the guide channels are each formed as through holes and the Abführseitigen distances between the guide channels to each other are less than the feed side distances.
Zuführseitig können die Abstände der Führungskanäle zueinander größer sein, um einen sicheren Anschluss der Hohlleitungen zu ermöglichen. Im Verlauf können sich die Führungskanäle einander annähern und abführseitig sehr nah aneinander angeordnet sein. Da abführseitig keine Anschlussstellen benötigt werden, ist der Abstand der Führungskanäle lediglich durch die Herstellungs- technik für das Führungselement limitiert. On the supply side, the distances between the guide channels can be greater than one another in order to allow a secure connection of the hollow lines. In the course of the guide channels can approach each other and be arranged on the discharge side very close to each other. Since no connection points are required on the discharge side, the distance between the guide channels is limited only by the production technology for the guide element.
Das Führungselement kann einteilig oder mehrteilig ausgebildet sein. Beispielsweise kann das Führungselement aus zwei Teil- Blöcken bestehen, wobei ein erster Teil-Block geradlinige, aber trichterförmig aufeinander zulaufende Führungskanäle zur Reduzierung des Loch-Abstandes und ein sich daran anschließender zweiter Teil-Block parallel zueinander verlaufende Führungskanäle aufweist. The guide element may be formed in one or more parts. For example, the guide element may consist of two sub-blocks, with a first sub-block rectilinear, but Has funnel-shaped converging guide channels for reducing the hole spacing and an adjoining second part block parallel to each other extending guide channels.
Wenn die Borstenbündel bereits konturiert in das Führungselement gelangen, so sind auch dessen Führungskanäle konturiert ausgebildet. Es ist jedoch auch möglich, dass die Führungskanäle zum Umformen der in ihnen transportierten Borstenbündel ausgebildet sind und deren Innenkontur im Verlauf vom zuführ- seitigen bis zum abführseitigen Ende eine Konturänderung hin zu einer im Borstenfeld gewünschten Bündel-Kontur erfährt. If the bundles of bristles already reach the guide element in a contoured manner, then also the guide channels thereof are contoured. However, it is also possible for the guide channels to be formed for reshaping the bristle bundles transported in them, and for their inner contours to undergo a contour change in the course from the feed end to the discharge end toward a desired bundle contour in the bristle field.
Nachstehend ist die erfindungsgemäße Vorrichtung anhand der Zeichnungen näher erläutert . The device according to the invention is explained in more detail below with reference to the drawings.
Es zeigt, zum Teil schematisiert: It shows, in part schematized:
Fig. 1 bis Fig. 1 to
Fig. 8 jeweils eine Vorrichtung mit einem Borstenvorrat und einer Kreisscheibe zum Entnehmen einzelner Borstenbündel aus dem Borstenvorrat,  8 each a device with a bristle supply and a circular disk for removing individual bristle bundles from the bristle supply,
Fig. 9 bis Fig. 9 to
Fig. 13 Hohlleitungen mit unterschiedlichen Innenkonturen, Fig. 14 bis  Fig. 13 hollow pipes with different inner contours, Fig. 14 to
Fig. 17 Hohlleitungen mit sich vom Einführende zum Abgabeende verändernder Innenkontur, und  Fig. 17 hollow conduits with the insertion from the end to the delivery end changing inner contour, and
Fig. 18 ein Führungselement mit Führungskanälen. ne im ganzen mit 1 bezeichnete Vorrichtung zum Herstellen von Borstenfeldern für Bürsten, insbesondere Zahnbürsten, weist gemäß Figuren 1 bis 8 einen Borstenvorrat 2 und eine Vorrichtung 3 zum Entnehmen einzelner Borstenbündel 4 aus dem Borstenvorrat 2 auf. Die Entnahme-Vorrichtung 3 weist dabei eine Kreisscheibe 5 mit drei Bündelaufnahmen 6 als Bündel-Abteiler auf. Die Kreisscheibe 5 ist jeweils zwischen einer Bündel-Aufnahmeposi- tion (Fig. 1 , 3 , 5 , 7 ) und einer Bündel-Abgabeposition (Fig. 2 , 4 , 6 , 8 ) verschwenkbar (Pfeil Pf) . Fig. 18 is a guide element with guide channels. ne throughout with 1 designated device for the manufacture of Bristle fields for brushes, in particular toothbrushes, has, according to FIGS. 1 to 8, a bristle supply 2 and a device 3 for removing individual bristle bundles 4 from the bristle supply 2. The removal device 3 in this case has a circular disk 5 with three bundle receptacles 6 as a bundle divider. The circular disk 5 is pivotable between a bundle receiving position (FIGS. 1, 3, 5, 7) and a bundle dispensing position (FIGS. 2, 4, 6, 8) (arrow Pf).
Die Bündelaufnahmen 6 sind jeweils entsprechend der gewünschten Bündel-Kontur der fertigen Bürste konturiert . Bei der Vorrichtung 1 gemäß Figuren 1 und 2 weisen die einzelnen Bündelaufnahmen 6 unterschiedliche Konturen auf (rechteckig, kreisförmig, dreieckig) , während die Kreisscheiben 5 der Entnahme- Vorrichtungen 3 gemäß Figuren 3 und 4 (dreieckig) , 5 und 6 (kreisförmig) beziehungsweise 7 und 8 (rechteckig) jeweils gleichartig konturierte Bündelaufnahmen 6 aufweisen.  The bundle receptacles 6 are each contoured according to the desired bundle contour of the finished brush. In the device 1 according to Figures 1 and 2, the individual bundle shots 6 different contours (rectangular, circular, triangular), while the circular discs 5 of the removal devices 3 according to Figures 3 and 4 (triangular), 5 and 6 (circular) or 7 and 8 (rectangular) each have similar contoured bundle receptacles 6.
Nach dem Entnehmen der Borstenbündel 4 aus dem Borstenvorrat 2 wird die Kreisscheibe 5 um 1 80 ° verschwenkt, wobei die Bündel- aufnahmen 6 an einem feststehenden Gegenstück 7 vorbeilaufen, wodurch ein Herausfallen der Borstenbündel 4 aus den Bündelaufnahmen 6 vermieden ist. In einer Übergabeposition der Kreisscheibe 5 (Fig. 2 , 4 , 6 , 8 ) werden die Borstenbündel 4 mit einer nicht dargestellten Übergabeeinrichtung in Hohlleitungen 8 ei- ner nicht weiter dargestellten Transport-Vorrichtung übergeben. Dazu wird ein bewegliches Gegenstück 9 in eine von der Kreisscheibe 5 beabstandete Position gebracht, um die Bündelaufnahmen 6 freizugeben. In den Figuren 2 , 4 , 6 und 8 ist gut zu erkennen, dass die Hohlleitungen 8 jeweils eine an die Kontur des jeweiligen Borstenbündels 4 angepasste Innenkontur aufweisen. Dadurch werden die Borstenbündel 4 unter Beibehaltung ihrer Konturierung durch die Hohlleitungen 8 transportiert und können abgabeseitig aus den Hohlleitungen 8 in entsprechend kon- turierte Lochungen einer nicht dargestellten Bündelhalteplatte übergeben werden. After removing the bristle bundles 4 from the bristle supply 2, the circular disk 5 is pivoted by 1 80 °, wherein the bundle receptacles 6 run past a fixed counterpart 7, whereby a falling out of the bristle bundles 4 is avoided from the bundle receptacles 6. In a transfer position of the circular disk 5 (FIGS. 2, 4, 6, 8), the bundles of bristles 4 are transferred with a transfer device, not shown, into hollow lines 8 of a transport device (not shown). For this purpose, a movable counterpart 9 is brought into a position spaced from the circular disc 5 position to release the bundle receptacles 6. In FIGS. 2, 4, 6 and 8, it can be clearly seen that the hollow conduits 8 each have an inner contour adapted to the contour of the respective bristle bundle 4. As a result, the bundles of bristles 4 are transported through the hollow conduits 8 while maintaining their contouring, and can be ejected from the hollow conduits 8 in the correspondingly congruent manner. turierte perforations of a bundle holding plate, not shown, are passed.
In den Figuren 9 bis 13 sind vergrößerte Querschnitte von Hohl- leitungen 8 dargestellt, aus denen die Anpassung ihrer Innenkontur 10 an die Kontur des Borstenbündels 4 deutlicher hervorgeht . Während die Hohlleitungen 8 gemäß Figuren 9 bis 11 einen runden Außenquerschnitt aufweisen, ist gemäß Figuren 12 und 1.3 auch die Außenkontur der Hohlleitung 8 an die Innenkontur ange- passt. Dadurch kann der Materialaufwand für die Hohlleitung 8 reduziert werden. In the figures 9 to 13 enlarged cross-sections of hollow pipes 8 are shown, from which the adjustment of their inner contour 10 to the contour of the bristle bundle 4 shows more clearly. While the hollow conduits 8 according to FIGS. 9 to 11 have a round outer cross section, according to FIGS. 12 and 1 . 3, the outer contour of the hollow line 8 adapted to the inner contour. As a result, the cost of materials for the hollow conduit 8 can be reduced.
Die Figuren 14 bis 17 zeigen jeweils in Teil-Schnittdarstellung eine Hohlleitung 8, bei der die Innenkontur 10 der Hohlleitung 8 im Verlauf vom der Entnahme-Vorrichtung zugewandten Einführende 11 bis zum Abgabeende 12 der Hohlleitung 8 eine Konturänderung hin zu einer im Borstenfeld gewünschten Bündel-Kontur erfährt. Die Borstenbündel 4 werden dabei jeweils mit etwa kreisförmig konturierten Bündelaufnahmen 6 entsprechend Fig.5 und 6 aus dem Borstenvorrat 2 entnommen und an die Hohlleitungen 8 übergeben, wo sie während dem Transport entsprechend der sich ändernden Innenkontur 10 umgeformt werden. Bei den Hohlleitungen 8 gemäß Figuren 15 und 17 ändert sich auch die Außenkontur vom Einführende 11 hin zum Abgabeende 12, wodurch der Materialbedarf für die Hohlleitung 8 reduziert ist. Wie bei den Ausführungsbeispielen gemäß Figuren 1 bis 8, werden die konturierten Borstenbündel 4 der Ausführungsbeispiele gemäß Figuren 14 bis 17 aus den Hohlleitungen 8 in entsprechend konturierte Lochungen einer nicht dargestellten Bündelhalte- platte eingebracht. FIGS. 14 to 17 each show, in a partial sectional view, a hollow conduit 8, in which the inner contour 10 of the hollow conduit 8 changes its contour in the course of the insertion device facing insertion end 11 to the discharge end 12 of the hollow conduit 8, towards a bundle desired in the bristle field. Contour experiences. The bundles of bristles 4 are each removed with approximately circular contoured bundle receptacles 6 according to Figures 5 and 6 from the bristle supply 2 and transferred to the hollow lines 8, where they are transformed during transport according to the changing inner contour 10. In the hollow conduits 8 according to FIGS. 15 and 17, the outer contour also changes from the insertion end 11 towards the discharge end 12, as a result of which the material requirement for the hollow conduit 8 is reduced. As in the exemplary embodiments according to FIGS. 1 to 8, the contoured bristle bundles 4 of the exemplary embodiments according to FIGS. 14 to 17 are introduced from the hollow conduits 8 into correspondingly contoured perforations of a bundle holding plate (not shown).
Wie insbesondere aus den Darstellungen gemäß Figuren 14 bis 17 ersichtlich ist, weisen die Hohlleitungen 8 eine gewisse Ma- terialstärke auf, wodurch die Dichte der Lochungen einer sich anschließenden Bündelhalteplatte begrenzt ist. As can be seen, in particular, from the illustrations according to FIGS. 14 to 17, the hollow conduits 8 have a certain extent. terialstärke, whereby the density of the perforations of a subsequent bundle plate is limited.
Um die Bündeldichte einer Bürste zu erhöhen und die Lochungen der Bündelhalteplatte dichter aneinander anordnen zu können, können, wie in Figur 18 dargestellt, die mehreren Hohlleitungen 8 der Transport-Vorrichtung jeweils in einen Führungskanal 13 eines Führungselements 14 münden, wobei die Führungskanäle 13 jeweils als Durchgangsöffnungen ausgebildet sind und die ab- führseitigen Abstände der Führungskanäle 13 zueinander geringer sind als die zuführseitigen Abstände.  To increase the bundle density of a brush and to be able to arrange the perforations of the bundle holding plate closer to each other, as shown in Figure 18, the plurality of hollow conduits 8 of the transport device each open into a guide channel 13 of a guide member 14, wherein the guide channels 13 each as Through openings are formed and the removal-side distances of the guide channels 13 to each other are less than the feed side distances.
Zuführseitig sind die Abstände der Führungskanäle 3 zueinander größer, um einen sicheren Anschluss der Hohlleitungen 8 zu ermöglichen. Im Ausführungsbeispiel sind die Hohlleitungen 8 in Aufnahmen mit verbreitertem Querschnitt des Führungselementes 14 eingebracht. Im Verlauf nähern sich die Führungskanäle 13 einander an und sind abführseitig sehr nah aneinander angeordnet. Da abführseitig keine Anschlussstellen benötigt werden, ist der Abstand der Führungskanäle 13 lediglich durch die Herstellungstechnik für das Führungselement 14 limitiert.  On the supply side, the distances of the guide channels 3 are greater to each other to allow a secure connection of the hollow lines 8. In the exemplary embodiment, the hollow conduits 8 are introduced into receptacles with a widened cross section of the guide element 14. In the course, the guide channels 13 approach each other and are disposed on the discharge side very close to each other. Since abführseitig no connection points are needed, the distance between the guide channels 13 is limited only by the manufacturing technology for the guide member 14.
Das Führungselement 14 gemäß Figur 18 ist mehrteilig ausgebildet mit einem ersten Teil-Block 15 mit geradlinigen, aber trichterförmig aufeinander zulaufenden Führungskanälen 13 zur Reduzierung des Loch-Abstandes und einem sich daran anschließenden zweiten Teil-Block 16 mit parallel zueinander verlaufen- den Führungskanälen 13. The guide element 14 according to FIG. 18 is designed in several parts with a first sub-block 15 with rectilinear, but funnel-shaped converging guide channels 13 for reducing the hole spacing and an adjoining second sub-block 16 with guide channels 13 running parallel to one another.

Claims

Ansprüche claims
Vorrichtung (1) zum Herstellen von Borstenfeldern für Bürsten, insbesondere Zahnbürsten, mit einem Borstenvorrat (2) und einer Vorrichtung (3) zum Entnehmen einzelner Borstenbündel (4) aus dem Borstenvorrat (2) sowie einer Transport-Vorrichtung zum Transportieren der Borstenbündel (4) durch zumindest eine Hohlleitung (8) mittels eines Gas- oder Luftstromes in Lochungen einer Bündelhalteplatte, dadurch gekennzeichnet, dass die Vorrichtung (3) zum Entnehmen der Borstenbündel (4) aus dem Borstenvorrat (2) zumindest eine Bündelaufnahme (6) hat, und dass die Bündelaufnähme (n) (6) der Entnahme-Vorrichtung (3) , die Innenkontur (10) der Hohlleitung (en) (8) und die Lochungen der Bündelhalteplatte jeweils entsprechend der im Borstenfeld gewünschten Bündel-Kontur konturiert sind. Device (1) for producing bristle fields for brushes, in particular toothbrushes, with a bristle supply (2) and a device (3) for removing individual bristle bundles (4) from the bristle supply (2) and a transport device for transporting the bristle bundles (4 ) by at least one hollow conduit (8) by means of a gas or air flow in perforations of a bundle holding plate, characterized in that the device (3) for removing the bristle bundles (4) from the bristle supply (2) has at least one bundle receptacle (6), and the bundle receiving means (s) (6) of the removal device (3), the inner contour (10) of the hollow line (s) (8) and the perforations of the bundle holding plate are each contoured according to the desired bundle contour in the bristle field.
Vorrichtung zum Herstellen von Borstenfeldern für Bürsten, insbesondere Zahnbürsten, mit einem Borstenvorrat (2) und einer Vorrichtung (3) zum Entnehmen einzelner Borstenbündel (4) aus dem Borstenvorrat (2) sowie einer Transport- Vorrichtung zum Transportieren der Borstenbündel (4) durch zumindest eine Hohlleitung (8) mittels eines Gasoder Luftstromes in Lochungen einer Bündelhalteplatte, dadurch gekennzeichnet, dass die Vorrichtung (3) zum Entnehmen der Borstenbündel (4) aus dem Borstenvorrat (2) zumindest eine Bündelaufnahme (6) hat, dass die Innenkontur (10) der Hohlleitung (en) (8) im Verlauf bis zum Abgabeende (12) der Hohlleitung (8) eine Konturänderung hin zu einer im Borstenfeld gewünschten Bündel-Kontur erfährt, und dass die Lochungen der Bündelhalteplatte zur Aufnahme eines in einer Hohlleitung (8) umgeformten Borstenbündels (4) jeweils entsprechend der gewünschten Bündel-Kontur kon- turiert sind. Apparatus for producing bristle fields for brushes, in particular toothbrushes, with a bristle supply (2) and a device (3) for removing individual bristle bundles (4) from the bristle supply (2) and a transport device for transporting the bristle bundles (4) through at least a hollow conduit (8) by means of a gas or air flow in perforations of a bundle holding plate, characterized in that the device (3) for removing the bristle bundles (4) from the bristle supply (2) has at least one bundle receptacle (6) that the inner contour (10) the hollow line (s) (8) in the course up to the discharge end (12) of the hollow line (8) undergoes a contour change towards a bundle contour desired in the bristle field, and that the perforations of the bundle holding plate for receiving a in a hollow conduit (8) formed Bristle bundle (4) in each case corresponding to the desired bundle contour. are turiert.
Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Bündelhalteplatte eine Verdichterplatte nachgeordnet ist, die Lochungen zur Aufnahme von Borstenbündeln (4) aufweist, deren Querschnitte jeweils kleiner sind als der Querschnitt des an die jeweilige Lochung zugeführten Borstenbündels (4), und dass eine Vorrichtung zum Weitergeben der Borstenbündel (4) von der Bündelhalteplatte an die Verdichterplatte vorgesehen ist. Apparatus according to claim 1 or 2, characterized in that the bundle holding plate is arranged downstream of a compressor plate having perforations for receiving bundles of bristles (4) whose cross sections are each smaller than the cross section of the bristle bundle (4) fed to the respective perforation, and a device for passing the bristle bundles (4) from the bundle holding plate to the compactor plate is provided.
Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Transport-Vorrichtung eine der Anzahl der Lochungen der Bündelhalteplatte angepasste Anzahl von Hohlleitungen (8) aufweist. Device according to one of claims 1 to 3, characterized in that the transport device has a number of perforations of the bundle holding plate adapted number of hollow conduits (8).
Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Hohlleitungen (8) Schläuche aus flexiblem Material sind. Device according to one of claims 1 to 4, characterized in that the hollow conduits (8) are hoses made of flexible material.
Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Hohlleitungen (8) Rohrverbindungen aus Stahl, Edelstahl oder sonstigem Metall sind. Device according to one of claims 1 to 4, characterized in that the hollow conduits (8) pipe connections made of steel, stainless steel or other metal.
Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Bündelhalteplatte ein Bürsten-Teilkörper, ein Spritzform-Einsatz oder eine an eine Weiterbe- arbeitungseinrichtung übergebbare Zwischenplatte ist. Device according to one of claims 1 to 6, characterized in that the bundle-holding plate is a brush-part body, an injection mold insert or an intermediate plate transferable to a further processing device.
Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die mehreren Hohlleitungen (8) der Transport-Vorrichtung jeweils in einen Führungskanal (13) eines Führungselements (14) münden, wobei die Führungska- näle (13) jeweils als Durchgangsöffnungen ausgebildet sind und die abführseitigen Abstände der Führungskanäle (13) zueinander geringer sind als die zuführseitigen Abstände. Device according to one of claims 1 to 7, characterized in that the plurality of hollow conduits (8) of the transport device each open into a guide channel (13) of a guide element (14), wherein the guide cable Ducts (13) are each formed as through holes and the discharge-side distances of the guide channels (13) are mutually less than the feed side distances.
Vorrichtung nach einem der Ansprüche 1 bis 8 , dadurch gekennzeichnet , dass die Führungskanäle (13) zum Umformen der in ihnen transportierten Borstenbündel (4) ausgebildet sind und deren Innenkontur im Verlauf vom zuführseitigen bis zum abführseitigen Ende eine Konturänderung hin zu einer im Borstenfeld gewünschten Bündel-Kontur erfährt. Device according to one of claims 1 to 8, characterized in that the guide channels (13) for forming the transported therein bristle bundles (4) are formed and their inner contour in the course of the feed side to the discharge end a contour change towards a desired bundle in the bristle field Contour learns.
EP11710696.3A 2010-04-16 2011-03-18 Apparatus for producing bristle arrangements for brushes Active EP2557961B1 (en)

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WO2011128020A1 (en) 2011-10-20
CN102892329B (en) 2014-11-12
KR20130079999A (en) 2013-07-11
US20130038115A1 (en) 2013-02-14
JP5818875B2 (en) 2015-11-18
EP2557961B1 (en) 2014-04-09
CN102892329A (en) 2013-01-23
DE102010015118A1 (en) 2011-10-20
TWI516225B (en) 2016-01-11
US9192227B2 (en) 2015-11-24
KR101752024B1 (en) 2017-06-28
TW201200069A (en) 2012-01-01

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