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US-12616296-B2 - Device for producing bristle products

US12616296B2US 12616296 B2US12616296 B2US 12616296B2US-12616296-B2

Abstract

A device used in the technical field of producing bristle products. The device ( 1 ) includes a tufting tool ( 3 ) for tufting bundles of bristles ( 4 ) into a provided bristle carrier ( 5 ) and a bristle displacer ( 6 ) for displacing already tufted bundles of bristles from a tufting region of the tufting tool ( 3 ). The tufting tool ( 3 ) and the bristle displacement element ( 6 ) are connected to a common drive shaft ( 9 ) of the device via a respective coupling gear mechanism ( 7 ) and/or ( 8 ) and are driven by same.

Inventors

  • Christoph Albrecht

Assignees

  • ZAHORANSKY AG

Dates

Publication Date
20260505
Application Date
20211220
Priority Date
20210210

Claims (18)

  1. 1 . An apparatus ( 1 ) for producing brushware ( 2 ), the apparatus comprising: a tufting tool ( 3 ) for tufting bristle bundles ( 4 ) placed into a provided bristle carrier ( 5 ); a bristle displacer ( 6 ) for displacing already tufted ones of the bristle bundles ( 4 ) from a tufting region of the tufting tool ( 3 ); a common drive shaft ( 9 ); a tool coupling gear mechanism ( 7 ) via which the tufting tool ( 3 ) is connected to and driven by the common drive shaft ( 9 ); and a displacer coupling gear mechanism ( 8 ) via which the bristle displacer ( 6 ) is connected to and driven by the common drive shaft ( 9 ).
  2. 2 . The apparatus ( 1 ) as claimed in claim 1 , wherein the tool coupling gear mechanism ( 7 ) comprises a tool eccentric ( 10 ) and the displacer coupling gear mechanism ( 8 ) comprises a displacer eccentric ( 11 ).
  3. 3 . The apparatus ( 1 ) as claimed in claim 2 , wherein the tool eccentric ( 10 ) and the displacer eccentric ( 11 ) are arranged on the common drive shaft ( 9 ).
  4. 4 . The apparatus ( 1 ) as claimed in claim 1 , wherein, for performing a displacer movement, the bristle displacer ( 6 ) is pivotable about an axis of rotation ( 12 ), and the axis of rotation ( 12 ) is oriented parallel or at a right angle or transversely to a movement direction of the tufting tool ( 3 ).
  5. 5 . The apparatus ( 1 ) as claimed in claim 1 , further comprising a switching device ( 13 ) for changing at least one of a displacer direction or a displacer travel of the bristle displacer ( 6 ).
  6. 6 . The apparatus ( 1 ) as claimed in claim 5 , wherein the switching device ( 13 ) comprises a guide carriage ( 14 ) and a linear guide ( 15 ) along which the guide carriage ( 14 ) is displaceably mounted, and an angular position of the linear guide ( 15 ) is changeable.
  7. 7 . The apparatus ( 1 ) as claimed in claim 6 , wherein the switching device ( 13 ) has an actuating drive ( 16 ) for changing the angular position of the linear guide ( 15 ).
  8. 8 . The apparatus ( 1 ) as claimed in claim 6 , wherein at least one of the displacer direction of the bristle displacer ( 6 ) or the displacer travel of the bristle displacer ( 6 ) is dependent on the angular position of the linear guide ( 15 ).
  9. 9 . The apparatus ( 1 ) as claimed in claim 6 , wherein the guide carriage ( 14 ) is connected via at least one lever to the bristle displacer ( 6 ).
  10. 10 . The apparatus ( 1 ) as claimed in claim 6 , wherein the guide carriage ( 15 ) is connected via at least one of a transmission element ( 18 ) of the displacer coupling gear mechanism ( 8 ) or the displacer eccentric ( 11 ) to the common drive shaft ( 9 ).
  11. 11 . The apparatus ( 1 ) as claimed in claim 10 , wherein the transmission element ( 18 ) of the displacer coupling gear mechanism ( 8 ) and a transmission element ( 19 ) of the tool coupling gear mechanism ( 7 ) are arranged on a common spindle ( 20 ).
  12. 12 . The apparatus ( 1 ) as claimed in claim 1 , wherein, wherein the tool coupling gear mechanism ( 7 ) has a slotted guide ( 21 ) for transmission of a drive movement to the tufting tool ( 3 ).
  13. 13 . The apparatus ( 1 ) as claimed in claim 1 , wherein the tool coupling gear mechanism ( 7 ) comprises a tool eccentric ( 10 ) and the displacer coupling gear mechanism ( 8 ) comprises a displacer eccentric ( 11 ), the tool eccentric ( 10 ) and the displacer eccentric ( 11 ) are configured, and arranged on the common drive shaft ( 9 ), such that the bristle displacer ( 6 ) is arranged in the displacer position while the tufting tool ( 3 ) is in the tufting position.
  14. 14 . The apparatus ( 1 ) as claimed in claim 1 , wherein the bristle displacer ( 6 ) has a displacer ring ( 22 ) into which the tufting tool ( 3 ) projects in the tufting position.
  15. 15 . The apparatus ( 1 ) as claimed in claim 14 , wherein an outer circumferential surface ( 23 ) of a tool tip ( 24 ) of the tufting tool ( 3 ) is formed so as to correspond to an inner circumferential surface ( 25 ) of the displacer ring ( 22 ).
  16. 16 . The apparatus ( 1 ) as claimed in claim 1 , wherein the bristle displacer ( 6 ) has at least one deflection element ( 26 ) by which the bristle bundles ( 4 ) are able to be deflected laterally with respect to a movement direction of the bristle displacer ( 6 ).
  17. 17 . The apparatus ( 1 ) as claimed in claim 1 , further comprising a motor ( 27 ) for driving the common drive shaft ( 9 ).
  18. 18 . The apparatus ( 1 ) as claimed in claim 1 , further comprising a holder ( 29 ) for receiving the bristle carrier ( 5 ), and the holder is adjustable relative to the tufting tool ( 3 ) in a t least two different axes.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a 371 National Phase of International Application No. PCT/EP2021/086888, filed Dec. 20, 2021, which claims priority to German Patent Application No. 10 2021 103 157.5, filed Feb. 10, 2021, both of which are incorporated herein by reference as if fully set forth. TECHNICAL FIELD The invention relates to an apparatus for producing brushware, in particular brushes or brooms, having a tufting tool for tufting bristle bundles into a provided bristle carrier, and having a bristle displacer for displacing already tufted bristle bundles from a tufting region of the tufting tool. BACKGROUND Such apparatuses are already known from practice and also from the published prior art in different embodiments—such as for example from the document GB 868 010 A and the document DE 10 2004 011 447 A1. In the case of the apparatuses already known from these two documents, it is provided that, during the tufting process, bristle displacers in the form of plates or sheets are directly acted on, and consequently moved, by the tufting tool of the respective apparatus. In principle, said apparatuses function well. However, as tufting speed, that is to say number of bristle bundles tufted per unit time, increases, the already known concepts reach their limits. SUMMARY It is therefore an object of the invention to provide an apparatus of the type mentioned in the introduction that allows production of brushware even at relatively high tufting speeds. To achieve said object, an apparatus of the type mentioned in the introduction that has one or more of the means and features disclosed herein, which is directed toward such an apparatus, is proposed. In particular, for achieving the object in the case of an apparatus of the type mentioned in the introduction, it is thus proposed that the tufting tool, via a tool coupling gear mechanism, and the bristle displacer, via a displacer coupling gear mechanism, are connected to and driven by a common drive shaft of the apparatus. In this way, a kinematic coupling between the tufting tool and the bristle displacer can be established without the bristle displacer having to be acted on directly by the tufting tool, as was hitherto known from practice and the prior art. In the case of the apparatus according to the invention, it is possible to dispense with restoring springs which move the bristle displacers of the hitherto known apparatuses back into their starting position and which can constitute a limiting factor for the increase in the tufting speed. The coupling between the common drive shaft and the tufting tool, and also the bristle displacer, can be configured in such a way that the return movement of the bristle displacer is forcibly coupled to the return movement of the tufting tool from a tufting position. In this way, an increase in the tufting speed results in a corresponding increase in the transmission of power with regard to the bristle displacer. In one embodiment of the apparatus, it is provided that the tool coupling gear mechanism comprises a tool eccentric and the displacer coupling gear mechanism comprises a displacer eccentric. In this case, the tool eccentric and the displacer eccentric may be arranged on the common drive shaft. With the aid of the two eccentrics, the rotational movement of the common drive shaft can be converted into a corresponding movement of the tufting tool and of the bristle displacer. In a preferred embodiment of the apparatus, for performing a displacer movement, the bristle displacer is pivotable about an axis of rotation. In this case, the axis of rotation may be oriented parallel or at a right angle or transversely to the movement direction of the tufting tool during tufting of bristles. In the case of an axis of rotation of the bristle displacer that is oriented transversely or at a right angle to the movement direction of the tufting tool, the bristle displacer may be moved in an arc-shaped or circular-arc-shaped displacer movement. If the axis of rotation of the bristle displacer is oriented parallel to the movement direction of the tufting tool, the displacer movement of the bristle displacer may be of fan-like form. The apparatus may have a switching device for changing a displacer direction and/or a displacer travel of the bristle displacer. In this way, it is possible to set the displacer direction in which the bristle displacer is advanced for displacing already tufted bristle bundles and/or the displacer travel of the bristle displacer that is covered by the bristle displacer. This facilitates production of brushware with relatively complex bristle fields whose bristle bundles are to be tufted in a particular sequence and which require a movement of the bristle displacer in different directions and/or with different adjustment travels. In one embodiment of the apparatus of particular importance, the switching device comprises a guide carriage and a linear guide along which the gui