EP4035565A2 - Dispositif de profilage, dispositif de fabrication de brosses, procédé de profilage d'un ensemble de poils et procédé de fabrication d'une brosse - Google Patents

Dispositif de profilage, dispositif de fabrication de brosses, procédé de profilage d'un ensemble de poils et procédé de fabrication d'une brosse Download PDF

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Publication number
EP4035565A2
EP4035565A2 EP22174318.0A EP22174318A EP4035565A2 EP 4035565 A2 EP4035565 A2 EP 4035565A2 EP 22174318 A EP22174318 A EP 22174318A EP 4035565 A2 EP4035565 A2 EP 4035565A2
Authority
EP
European Patent Office
Prior art keywords
bristle
profiling
filaments
brush
counter
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
EP22174318.0A
Other languages
German (de)
English (en)
Other versions
EP4035565B1 (fr
EP4035565A3 (fr
Inventor
Marc König
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
Priority to EP22174318.0A priority Critical patent/EP4035565B1/fr
Publication of EP4035565A2 publication Critical patent/EP4035565A2/fr
Publication of EP4035565A3 publication Critical patent/EP4035565A3/fr
Priority to PCT/EP2023/054531 priority patent/WO2023222270A1/fr
Priority to CN202390000296.XU priority patent/CN223111240U/zh
Priority to US18/866,724 priority patent/US20250331632A1/en
Priority to TW112107567A priority patent/TW202348170A/zh
Application granted granted Critical
Publication of EP4035565B1 publication Critical patent/EP4035565B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D9/00—Machines for finishing brushes
    • A46D9/02—Cutting; Trimming
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/028—Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone
    • 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
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/08—Parts of brush-making machines
    • A46D3/087—Holders or supports for brush bodies
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the invention relates to a profiling device for profiling a bristle covering for a brush, in particular for a toothbrush.
  • the invention also relates to a brush manufacturing device for manufacturing brushes, in particular toothbrushes, and a method for profiling a bristle covering made of bristle filaments of a brush, especially a toothbrush, and a method for manufacturing such a brush.
  • the properties of use and the cleaning effect of a brush, in particular a toothbrush, are decisively influenced by the design of the bristles.
  • the profile on the cleaning side of the bristles has a particular influence on the usage characteristics and the cleaning effect of the brush.
  • a profiling device for profiling a bristle covering for a brush which has the features of the independent claim directed to a profiling device.
  • a profiling device is proposed in particular, which is set up to profile a cleaning side of the bristle stock by an axial displacement of bristle filaments of the bristle stock in relation to their longitudinal axes.
  • the bristle stock can be profiled before the bristle stock is attached to a bristle carrier of a brush to be produced.
  • the bristle trimming can be profiled on its cleaning side without shortening the individual bristle filaments to a specific length in a targeted manner. Because the profile is generated by axial displacement of the bristle filaments with respect to their longitudinal axes, no cutting waste occurs when using the profiling device according to the invention, which could lead to soiling of a brush manufacturing machine and thus to problems in the manufacture of brushes.
  • the profiling device according to the invention thus effectively avoids the time-consuming removal of cutting waste.
  • the profiling device is set up to axially displace bristle filaments of the bristle facing by different distances.
  • the profiling device has a profiling tool and/or a counter-profiling tool for the axial displacement of the bristle filaments.
  • the profiling tool and/or the counter-profiling tool can act on the bristle filaments, preferably from opposite sides, in order to bring about the axial displacement of the bristle filaments to generate the profile on the cleaning side of the bristle facing.
  • the profiling tool and/or the counter-profiling tool is/are set up to axially displace bristle filaments of the bristle facing by different distances.
  • the different axial displacement of bristle filaments when profiling the bristle facing can be brought about by the design of a profiling surface of the profiling tool and/or a counter-profiling surface of the counter-profiling tool, which the bristle filaments can act on during profiling.
  • the profiling device preferably has a profiling tool and a corresponding counter-profiling tool.
  • profiling tool and Counter-profiling tools can act on opposite sides of the bristle stock and, in interaction with one another, cause the bristle filaments to be displaced axially, starting from an initial position into a target position.
  • a precise axial displacement of the bristle filaments of the bristle stock to generate the profile on the cleaning side of the bristle stock is possible without having to shorten the bristle filaments of the bristle stock and without generating cutting waste.
  • the profiling tool can have a preferably closed profiling surface.
  • the profiling surface can have a profile that corresponds to a negative profile of the profile to be generated on the cleaning side of the bristle facing. If the profiling surface is closed, it is possible to avoid individual bristle filaments passing through the profiling surface of the profiling tool and accidentally not being caught by the profiling tool.
  • the counter-profiling tool can have a preferably closed counter-profiling surface.
  • the counter-profiling surface of the counter-profiling tool can thereby have a profile which corresponds to a negative profile of the profile of the profiling surface of the profiling tool.
  • the profile of the counter-profiling surface can also correspond to the profile to be produced of the bristles of the brush to be produced on its cleaning side.
  • the profiling tool and/or the counter-profiling tool is/are movably mounted to carry out a profiling movement. It is also possible to keep the profiling tool and/or the counter-profiling tool stationary and to move the bristle facing to generate the profile on the cleaning side of the bristle facing in a profiling movement relative to the profiling tool and/or the counter-profiling tool.
  • the profiling device can have a drive for the profiling movement of the profiling tool and/or the counter-profiling tool and/or the bristle facing, in particular a filament holder of the profiling device that is explained in more detail below.
  • the profiling device can have a filament holder for, in particular clamping, holding the bristle filaments of the bristle facing during the profiling of the bristle facing.
  • the bristle filaments of the bristle facing can initially be held in an unprofiled relative position to one another with the filament holder. All the bristle filaments can have the same length and/or the same overhang on the filament holder.
  • the filament holder can present the bristle filaments of the bristle facing to the profiling tool and/or the counter-profiling tool for profiling and can hold and/or guide the bristle filaments during profiling. It is also possible to move the filament holder with the bristle filaments of the bristle stock in a profiling movement to generate the profile on the cleaning side of the bristle stock.
  • the filament holder has a hole pattern with a number and arrangement of receiving holes that corresponds to the number and arrangement of bristle bundles of the bristle facing of the brush to be produced.
  • the filament holder can thus already hold all the bristle filaments of the bristle facing to be profiled in a bundle arrangement which corresponds to the bundle arrangement of the bristle facing of the finished brush.
  • the filament holder can have a releasable clamp for bristle filaments arranged in the receiving holes, in particular for bristle bundles arranged in the receiving holes.
  • the filament holder can use the clamp to hold the bristle filaments positioned in the receiving holes.
  • the clamp can be temporarily released. In this way it is possible to axially displace the bristle filaments in the filament holder, preferably differently, in order to generate the profile on the cleaning side of the bristle facing.
  • the clamping can be activated again in order to keep the then profiled bristle facing ready for further processing, in particular for connecting the bristle facing to a bristle carrier of the brush to be produced.
  • the receiving holes are Through holes are formed. In this way it is possible to move the bristle filaments within the filament holder by axial displacement into their individual target position and thus to generate the profile on the cleaning side of the bristle facing.
  • the profiling device can also have a leveling device for leveling a counter-profile produced on a fastening side of the bristle facing. Due to the axial displacement of the bristle filaments to generate the profile on the cleaning side of the bristle facing, the bristle filaments can have different overhangs on the fastening side of the bristle facing.
  • the bristle stock can then have a counter-profile on the fastening side, which corresponds to the negative profile of the profile on the cleaning side of the bristle stock.
  • the equalizing device is used, which equalizes these different overhangs of the bristle filaments on the fastening side.
  • the leveling device can have a heating device that is set up to melt the ends of the bristle filaments of the bristle facing on the fastening side.
  • the counter-profile on the fastening side of the bristle facing can be equalized, the bristle filaments of individual bristle bundles and/or the bristle bundles of the bristle facing can be connected to one another and finally the bristle facing can be connected to a bristle carrier provided. This can then be done by means of a preferably cohesive connection between the melted, fastening-side ends of the Bristle filaments of the bristle trimming and a ready held bristle carrier happen.
  • the heating device of the leveling device can be a heating device of a brush manufacturing device which will be explained in more detail below and which is also used to connect the profiled bristle facing to a bristle carrier that is kept ready.
  • a brush manufacturing device for manufacturing brushes in particular toothbrushes, which has the means and features of the independent claim directed to a brush manufacturing device.
  • a brush manufacturing device for manufacturing brushes, in particular toothbrushes, with a bristle carrier and a bristle facing made of bristle filaments is proposed, the brush manufacturing device having a profiling device according to one of the claims directed to such.
  • a method for profiling a bristle stock made of bristle filaments for a brush, in particular a toothbrush is also proposed, which has the means and features of the independent claim directed to a method for profiling a bristle stock.
  • the bristle filaments of the bristle stock are oriented with a profiling device, in particular one according to one of the claims directed to a profiling device, in relation to their longitudinal axes for generating a profile on a cleaning side of the bristles starting be shifted axially from a starting position to a target position.
  • the target positions of the bristle filaments can deviate from one another in the axial direction.
  • a profiling tool and/or counter-profiling tool of the profiling device is preferably used here.
  • the method can be part of a method for producing brushes, in particular toothbrushes.
  • Bristle filaments of the bristle facing can be axially displaced relative to one another and/or axially displaced to different extents during the implementation of the method for profiling the bristle facing on the cleaning side.
  • the bristle facing can be supported and/or counter-profiled on its fastening side with a counter-profiling tool.
  • the bristle stock is moved by means of the aforementioned profiling tool in conjunction with the counter-profiling tool, starting from an unprofiled starting position towards the profiled target position, in which the bristle stock has the desired profile on its cleaning side.
  • the profiling tool and/or the counter-profiling tool can be moved in a profiling movement relative to the bristle facing.
  • the bristle stock can be moved relative to the profiling tool and/or to the counter-profiling tool for profiling the cleaning side of the bristle stock.
  • the bristle trimming can be held with the previously mentioned filament holder of the profiling device and a profiling movement to the profiling tool and/or the counter-profiling tool.
  • a counter-profile created on a fastening side of the bristle facing when profiling the cleaning side can be equalized. This can be done, for example, by melting the ends of the bristle filaments on the fastening side. Equalizing the counter-profile created by the axial displacement of the bristle filaments when profiling the bristle facing can simplify the precise connection of the bristle facing with a bristle carrier of the brush to be produced.
  • the bristle filaments are shortened on the attachment side by melting their attachment-side ends, so that after the counter-profile has been equalized, the attachment-side ends are in a common, preferably perpendicular to the longitudinal axis of bristle filaments of the bristle facing and/or to a longitudinal axis of a bristle carrier of the toothbrush on which the bristle facing is fastened in the position of use, aligned fastening planes are arranged. Due to the previous axial displacement, the bristle filaments of the bristle facing then have different lengths, as a result of which the profile is generated on the cleaning side of the bristle facing.
  • the bristle filaments of the profiled bristle facing can be connected to a bristle carrier of a brush by means of heat.
  • the method for profiling a bristle facing made of bristle filaments can thus be part of a method for producing a brush.
  • a method for producing a brush in particular a toothbrush, is proposed in which a bristle stocking made of bristle filaments according to the claimed method for profiling a Bristle facing profiled from bristle filaments and then the bristle filaments of the profiled bristle facing are connected by heat with a bristle carrier of a brush.
  • the Figures 1-5 and 6-10 each show at least parts of a brush designated as a whole by 1, which is designed as a toothbrush. If not explicitly stated, the following explanations refer to both embodiments of the brush 1 shown in the figures.
  • the brush 1 has a bristle carrier 2, namely a brush head to which a bristle facing 3 made of bristle filaments 4 is attached.
  • the bristles 3 of the brush 1 are profiled with a profiling device 25 of a brush manufacturing machine 18 .
  • the profiling device 25 is set up to profile the bristle stock 3 of a brush 1 to be produced before the bristle stock 3 is attached to the bristle carrier 2 of the brush 1 on the cleaning side 27 of the bristle stock 3 by axial displacement of the bristle filaments 4 with respect to their longitudinal axes.
  • the profiling device 25 For profiling the bristle facing 3 , the profiling device 25 has a profiling tool 26 and a counter-profiling tool 28 , which are set up for the axial displacement of the bristle filaments 4 of the bristle facing 3 before it is attached to the bristle carrier 2 .
  • the profiling tool 26 acts axially on the bristle filaments 4 on the cleaning side 27 of the bristle facing 3 .
  • the counter-profiling tool 28 acts axially on the fastening-side ends 6 of the bristle filaments 4 on a fastening side 29 of the bristle facing 3 and supports the bristle filaments 4 at their fastening-side ends 6 during the profiling of the bristle facing 3 .
  • the profiling tool 26 has a closed profiling surface 39 which is a negative profile of a profile 42 to be produced on the cleaning side 27 of the bristle facing 3 and is convex in shape.
  • the counter-profiling tool 28 has a closed counter-profiling surface 40, the profile of which is a negative profile of the profile of the profiling surface 39 of the profiling tool 26 and the profile of which corresponds to the profile 42 of the bristle facing 3 of the brush 1 to be produced on its cleaning side 27 and is concave in shape.
  • the profiling tool 26 and the counter-profiling tool 28 are according to figure 11 movably mounted to perform a profiling movement.
  • the profiling movement of the profiling tool 26 and the counter-profiling tool 28 are in figure 11 illustrated by the arrows assigned to the profiling tool 26 and the counter-profiling tool 28 .
  • the profiling device 25 has a drive 44.
  • the figures 1 and 6 illustrate that the brush 1 has a receiving recess 5 on its bristle carrier 2 .
  • Bristle filaments 4 of the profiled bristle covering 3 are fastened to the finished brush 1 with their fastening-side ends 6 in the receiving recess 5 .
  • the receiving recess 5 is filled with the filament material of the fastening-side ends 6 on the finished brush 1 that is melted to fasten the bristle filaments 4 .
  • the bristle carrier 2 namely the brush head, is connected to a handle 8 of the brush 1 via a neck section 7 of the brush 1 .
  • the figures 1 and 4 show that before the bristle filaments 4 are attached, the bristle carrier 2 has its smallest material thickness in the area of the receiving recess 5, which can be measured in the direction of a normal to the receiving recess 5. In adjacent areas, the bristle carrier 2 is designed to be significantly thicker. This is shown, for example, by figures 4 and 9 , in which the material thickness E in the area of the receiving recess 5 and the material thickness D in adjacent sections of the bristle carrier 2 are illustrated by dimensions.
  • the exemplary embodiment of a brush 1 shown is formed within the receiving recess 5 with stiffening ribs 9 which give the bristle carrier 2 good stability despite its comparatively small material thickness E in the area of the receiving recess 5 . This can help with the handling of the bristle carrier 2 simplify the manufacture of the brush 1.
  • the receiving recess 5 is segmented by the stiffening ribs 9 present within the receiving recess 5 .
  • the arrangement of the stiffening ribs 9 creates a pattern of individual receptacles which, in terms of shape and arrangement, corresponds to a cross-sectional shape and arrangement of bristle bundles 11 of the bristle covering 3 , which consist of the bristle filaments 4 .
  • the figures 5 and 10 make it clear that the melted filament material of the bristle facing 3 shown in each case forms at least one carrier plate 11 which fills the receiving recess 5 of the respective brush 1 after the bristle filaments 4 have been attached to the bristle carrier 2 .
  • the bristle filaments 4 or the bristle bundles 10 formed from the bristle filaments 4 can be connected to one another by the carrier plate 11 . This is particularly the case with the in figure 5 support plate 11 shown is the case.
  • the bristle filaments 4 within a bristle bundle 10 are connected by a carrier plate 11 .
  • Each of the eight bundles of bristles 10 thus has a carrier plate 11 .
  • the carrier plate 11 fills the receiving recess 5 in such a way that a surface 12 of the carrier plate 11 is flush with a brush surface 13 of the brush 1 adjoining the receiving recess 5 and the bristle facing 3 .
  • the bristle filaments 4 and the bristle carrier 2, as well as the neck section 7 and the handle 8 of the brush 1 consist of the same material, which also allows an integral connection between the bristle filaments 4 and the bristle carrier 2.
  • the brushes 1 shown in the figures are therefore so-called single-material brushes. Since the material used for the production of the bristle carrier 2, the neck section 7 and the handle 8 as well as the bristle filaments 4 of the bristle facing 3 of the brush 1 is a biodegradable plastic, for example polyamide, namely preferably PA 10.10 or PA 12, the brush is 1 particularly environmentally friendly and easy to recycle.
  • the bristle filaments 4 fastened in the receiving recess 5 and the bristle carrier 2 form a materially homogeneous, monolithic unit and are materially connected to one another.
  • the bristle carrier 2 has an edge 14 laterally delimiting the receiving recess 5 .
  • the edge 14 serves to guide the melted filament material when the bristle filaments 4 are connected to the bristle carrier 2 in such a way that the receiving recess 5 is filled with the melted filament material of the fastening-side ends 6 of the bristle filaments 4 .
  • a plurality of recesses 15 are formed in the edge 14 and are preferably filled flush with adjacent edge sections by the melted filament material of the ends 6 of the bristle filaments 4 on the fastening side will.
  • This is illustrated, for example figure 3 , which shows a plan view of the bristle carrier 2 of one brush 1 designed as a brush head.
  • Figures 3 and 8th show that the bristle stock 3 on the finished toothbrush in an area in which the bristle stock 3 is arranged adjacent to the edge 14 of the bristle carrier 2, which delimits the receiving recess 5, has a distance A of 0.5 mm to 3 mm, for example a circumference of the bristle carrier 2 can have.
  • the distance A also defines the distance between the bristle bundles 10 and the circumference of the bristle carrier 2.
  • Figures 3 and 8th also show that the melted filament material and thus the carrier plate 11, where they are surrounded by the edge 14 of the bristle carrier 2, can have a distance B from the circumference of the bristle carrier 2 of, for example, 0.3 mm to 2 mm.
  • the distance B also defines the edge thickness of the edge 14 of the bristle carrier 2 , which delimits the receiving recess 5 and bears against the carrier plate 11 .
  • Figures 3 and 8th also show that the melted filament material and thus the carrier plate 11 in the region of a recess 15 in an edge 14 of the bristle carrier 2 surrounding the receiving recess 5 can have a distance C from the circumference of the bristle carrier 2 of, for example, 0 mm to 2 mm.
  • the melted filament material, which forms the carrier plate 11, can thus extend all the way to the outside in the area of a recess 15 in the edge 14, the recess 15 fill in and form a flush finish with adjacent border sections.
  • FIGS. 4 and 9 show that the edge of the bristle carrier 2 and after attachment of the bristle filaments 4 to the bristle carrier 6, the bristle carrier 2 can have a material thickness D of 2 mm to 6 mm.
  • the material thickness D defines the head thickness of the bristle carrier.
  • FIGS. 4 and 9 also show that a material thickness E in the area of the receiving recess 5 before the bristle filaments 4 are attached to the bristle carrier 2 in the case of toothbrushes can be, for example, 1 mm to 4 mm.
  • the difference between the sizes D and E then defines the height of the edge 14 above the receiving recess 5.
  • the Figures 11-14 illustrate a method for producing a brush 1, as in the Figures 1-9 is shown at least in part.
  • figure 12 shows that first the fastening-side ends 6 of the bristle filaments 4 are heated to connect the bristle filaments 4 to the bristle carrier 2 provided and the receiving recess 5 is filled with the filament material of the fastening-side ends 6 of the bristle filaments 4 that is melted when the bristle filaments 4 are fastened to the bristle carrier 2.
  • the figure 12 also shows that not only the fastening-side ends 6 of the bristle filaments 4, but also the bristle carrier 2 in the region of its receiving recess 5 is heated without contact by thermal radiation.
  • the fastening-side ends 6 of the bristle filaments 4 are heated to a higher temperature than the bristle carrier 2 in the area of its receiving recess 5 . While the fastening-side ends 6 of the bristle filaments 4 so far are heated so that they melt, the temperature to which the bristle carrier 2 is heated in the area of its receiving recess 5 is selected to be lower, so that the bristle carrier 2 does not melt in the area of the receiving recess 5 . After they have been attached to the bristle carrier 2, the bristle filaments 4 and the bristle carrier 2 are materially connected to one another and form the previously mentioned materially homogeneous, monolithic unit.
  • the recesses 15 present in the edge 14 of the bristle carrier 2 laterally delimiting the receiving recess 5 are filled with the filament material of the fastening-side ends 6 of the bristle filaments 4, preferably flush with adjacent edge sections when the bristle filaments 4 are fastened to the bristle carrier 2.
  • the bristle carrier 2 is inserted into a mold 16 for fastening the bristle filaments 4 in the receiving recess 5 .
  • the mold 16 has a mold wall 17 which laterally surrounds the receiving recess 5 of the bristle carrier 2 in such a way that the edge 14 of the bristle carrier 2, which laterally delimits the receiving recess 5, is supported laterally.
  • the bristle carrier 2 is cooled via the mold 16 .
  • the brush manufacturing device 18 has a heating device 19 .
  • the heating device 19 comprises two heating surfaces 20 and 21, of which a first heating surface 20 is provided for heating fastening-side ends 6 of bristle filaments 4 and a second heating surface 21 for heating a bristle carrier 2 in a region of its receiving recess 5.
  • the heating surfaces 20 and 21 transfer the heat to the bristle filaments 4 or the bristle carrier 2 via thermal radiation.
  • the heating device 19 is set up to heat the two heating surfaces 20 and 21 and, via these, the fastening-side ends 6 of the bristle filaments and the bristle carrier 2 in the region of its receiving recess 5 to different temperatures.
  • the heating surface 20 can be heated to a temperature that is sufficient to melt the fastening-side ends 6 of the bristle filaments 3 by means of thermal radiation.
  • the two heating surfaces 20 and 21 are arranged on a common heating element 22 and here on different sides of the heating element 22, namely on opposite sides.
  • the temperature sensors 23 it is possible to detect the temperatures of the heating surfaces 20 and 21 and thus to regulate the temperatures of the two heating surfaces 20 and 21 to a target temperature.
  • the heating device 19 is equipped with a corresponding control unit 24 in order to regulate the temperature of the heating surfaces 20 and 21 .
  • the control unit 24 is connected to the temperature sensors 23 and can adapt the temperatures of the heating surfaces 20 and 21 depending on a deviation of a respective actual temperature from a target temperature of the heating surfaces 20, 21 detected by the temperature sensors 23.
  • the previously mentioned mold 16 is part of the brush manufacturing device 18.
  • the mold 16 serves to receive and support the bristle carrier 2 when attaching the bristle filaments 4 to the bristle carrier 2.
  • the bristle carrier 2 is used to attach the bristle filaments 4 in the receiving recess after heating the ends on the attachment side 6 of the bristle filaments 4 and the bristle carrier 2 are lowered into the mold 16 with the lifting device 36 of the brush manufacturing device 18 .
  • the brush manufacturing device 18 also includes the previously explained profiling device 25.
  • the profiling device 25 is shown in FIG figure 11 as well as in parts in the Figures 12 and 13 shown.
  • the profiling device 25 is used to profile the bristle facing 3 of the brush 1 to be produced.
  • the profiling device 25 has a Profileing tool 26 for profiling a cleaning side 27 of the bristle stock 3 and a counter-profiling tool 28 for supporting and profiling a fastening side 29 of the bristle stock 3.
  • a profile 42 is produced on its cleaning side 27 which is intended to optimize the usage properties and the cleaning effect of the brush 1 .
  • the functioning of the profiling device 25 is, for example, from figure 11 evident. Accordingly, the profiling tool 26 is moved with its shaping, convex-shaped, closed profiling surface 39 against the cleaning side 27 of the bristle facing 3 . As a result, the bristle filaments 4 are axially displaced in relation to their longitudinal axis according to the shape of the profiling tool 26 .
  • the bristle filaments 4 are supported by the counter-profiling tool 28 placed on the attachment side 29 of the bristle stock 3, whose counter-profiling surface 40, which is also closed, has a contour that corresponds to the target contour and thus to the profile 42 of the bristle stock 3 to be generated on its cleaning side 27 and is concave in shape .
  • the different protrusion of the bristle filaments 4 on the fastening side 29 of the bristle facing 3 creates a counter-profile 43 on the fastening side 29 of the bristle facing 3.
  • the counter-profile 43 is formed when the fastening-side ends 6 of the bristle filaments 4 are melted to fasten the bristle filaments 4 to the bristle carrier 2 of a brush to be produced 1 equalized.
  • a leveling device 41 of the profiling device 25 is used.
  • the leveling device 41 uses the previously mentioned heating device 19 of the brush manufacturing device 18 to pass through the counter-profile 43 Melting the attachment-side ends 6 of the bristle filaments 4 level.
  • FIG 11 shows that the brush manufacturing device 18 also has a filament holder 30 with a clamp 45 for holding the bristle filaments 4 of the bristle facing 3 in a clamped manner.
  • the filament holder 30 is at least temporarily also part of the profiling device 25 and is also designed as a cassette and can be moved from station to station of the brush manufacturing device 18 .
  • the filament holder 30 can hold the bristle filaments 4 on the heating device 19 during the profiling of the bristle facing 3 as well as during the heating of the fastening-side ends 6 of the bristle filaments 4 to equalize the counter-profile on the fastening side 29 of the bristle facing 3 .
  • the filament holder 30 has a hole pattern 37 of receiving holes 38 for bristle bundles 10 made of bristle filaments 4, which corresponds to a bundle arrangement of bristle bundles 10 in the bristle covering 3 of the brush 1 to be produced.
  • the filament holder 30 comprises a releasable clamp 45 for the bristle bundles 10 made of bristle filaments 4 arranged in its receiving holes 38.
  • figure 11 shows the filament holder 30 with a set of bristles 3 to be profiled between the profiling tool 26 and the counter-profiling tool 28.
  • the clamp 45 of the filament holder 30 is opened, so that an axial displacement of the bristle filaments 4 of the bristle bundles 10 for profiling the bristle stock 3 in the receiving holes 38 of the filament holder 30 designed as through holes is possible.
  • the clamp 45 can be activated again in order to clamp the displaced bristle filaments 4 in to fix the receiving holes 38 of the filament holder 30.
  • the filament holder 30 is also used when pressing the fastening-side ends 6 of the bristle filaments 4 into the receiving recess 5 of a bristle carrier 2 that is kept ready. Here, however, its clamp 45 is open. The bristle filaments 4 can thus be pressed into the receiving recess 5 with their ends 6 on the fastening side with the aid of the profiling tool 26 , which acts axially on the bristle filaments 4 on the fastening side 27 of the bristle facing 3 . The bristle filaments 4 are guided by the filament holder 30 and its receiving holes 38 that go through it.
  • the brush manufacturing device 18 also has a cooling device 31 for cooling the bristle carrier 2 after the bristle filaments 4 have been attached to the bristle carrier 2 .
  • the cooling device 31 is set up to cool the bristle carrier 2 arranged in the mold 16 .
  • the brush manufacturing device 18 also has a magazine 32 in which a supply of loose bristle filaments 33 is arranged.
  • Bristle bundles 10 can be divided from the supply of loose bristle filaments 33 in the magazine 32 with the aid of a dividing device 34 of the brush manufacturing device 18 . With the aid of a bundle forming unit 35, the bristle bundles 10 can be brought into their desired target shape in the bristle covering 3 of the brush 1 to be produced.
  • the bristle bundles 10 are transferred from the bundle forming unit 35 to the filament holder 30 and with the clamp 45 in the receiving holes 38 designed as through holes fixed.
  • figure 14 shows how the finished brush 1 is lifted out of the mold 16 with the lifting device 36 after the bristle carrier 2 has cooled.
  • the profiled set of bristles 3 is now connected to the bristle carrier 2 of the brush 1.
  • the profiling device 25 is suitable for carrying out the method described below for profiling a bristle covering 3 made of bristle filaments 4 for a brush 1 to be produced.
  • the method can be part of a method for producing brushes 1 .
  • the bristle filaments 4 of the bristle facing 3 are axially displaced with the profiling device 25 in relation to their longitudinal axes to produce a profile 42 on a cleaning side 27 of the bristle facing 3, starting from an initial position into a target position.
  • the bristle filaments 4 of the bristle facing 3 are displaced axially relative to one another and also in some cases axially to different extents.
  • the bristle filaments 4 are axially loaded with the profiling tool 26 of the profiling device 25 on the cleaning side 27 of the bristle facing 3 and supported on the fastening side 29 of the bristle facing 3 with the counter-profiling tool 28 of the profiling device 25 and also counter-profiled.
  • the profiling tool 26 and the counter-profiling tool 28 are in accordance with figure 11 moved in a profiling movement relative to the bristle facing 3 and the filament holder 30 with the aid of the drive 44 .
  • the bristle stock 3, for example, together with the Filament holder 30 to move relative to the profiling tool 26 and / or the counter-profiling tool 28.
  • the counter-profile 43 produced on the attachment side 29 is leveled with the aid of the heating device 19 of the brush manufacturing device 18 , which is at least temporarily also part of the leveling device 41 of the profiling device 25 .
  • the bristle filaments 4 can be connected to a bristle carrier 2 of a brush 1 by means of heat.
  • the method for profiling a bristle stocking 3 from bristle filaments 4 is then part of a method for manufacturing a brush 1.
  • One step of this method for manufacturing a brush 1 provides that the bristle filaments 4 of the previously profiled bristle stocking 3 are bonded by heat to a bristle carrier 2 of a brush 1 to be connected.
  • the heat of the heating device 19 of the brush manufacturing device 18 can be used to connect the bristle filaments 4 to the bristle carrier 2 .
  • the heating device 19 was previously used to melt the fastening-side ends 6 of the bristle filaments 4 to equalize the counter-profile 43 produced on the fastening side 29 of the bristle covering 3 .
  • the melted fastening-side ends 6 of the bristle filaments 4 can then be brought into contact with the bristle carrier 2 , which is also heated by the heating device 19 , in order to connect the bristle filaments 4 to the bristle carrier 2 .
  • the invention relates, among other things, to a profiling device 25 for profiling a bristle stock 3 for a brush 1, wherein the profiling device 25 is set up to profile a cleaning side 27 of the bristle stock 3 by axial displacement of bristle filaments 4 of the bristle stock 3 with respect to their longitudinal axes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Brushes (AREA)
EP22174318.0A 2022-05-19 2022-05-19 Dispositif de profilage, dispositif de fabrication de brosses, procédé de profilage d'un ensemble de poils et procédé de fabrication d'une brosse Active EP4035565B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP22174318.0A EP4035565B1 (fr) 2022-05-19 2022-05-19 Dispositif de profilage, dispositif de fabrication de brosses, procédé de profilage d'un ensemble de poils et procédé de fabrication d'une brosse
PCT/EP2023/054531 WO2023222270A1 (fr) 2022-05-19 2023-02-23 Dispositif de profilage, dispositif de fabrication de brosse, procédé de profilage d'un ensemble de poils et procédé de fabrication d'une brosse
CN202390000296.XU CN223111240U (zh) 2022-05-19 2023-02-23 为刷成型刷毛填塞物的成型装置和制造刷的刷制造装置
US18/866,724 US20250331632A1 (en) 2022-05-19 2023-02-23 Profiling device, brush manufacturing device, method for profiling a set of bristles and method for manufacturing a brush
TW112107567A TW202348170A (zh) 2022-05-19 2023-03-02 輪廓成形裝置、刷子製造裝置、用於輪廓成形刷毛組的方法及用於製造刷子的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22174318.0A EP4035565B1 (fr) 2022-05-19 2022-05-19 Dispositif de profilage, dispositif de fabrication de brosses, procédé de profilage d'un ensemble de poils et procédé de fabrication d'une brosse

Publications (3)

Publication Number Publication Date
EP4035565A2 true EP4035565A2 (fr) 2022-08-03
EP4035565A3 EP4035565A3 (fr) 2022-11-16
EP4035565B1 EP4035565B1 (fr) 2026-01-21

Family

ID=81749488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22174318.0A Active EP4035565B1 (fr) 2022-05-19 2022-05-19 Dispositif de profilage, dispositif de fabrication de brosses, procédé de profilage d'un ensemble de poils et procédé de fabrication d'une brosse

Country Status (5)

Country Link
US (1) US20250331632A1 (fr)
EP (1) EP4035565B1 (fr)
CN (1) CN223111240U (fr)
TW (1) TW202348170A (fr)
WO (1) WO2023222270A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3403341A1 (de) * 1984-02-01 1985-08-08 Coronet - Werke Heinrich Schlerf Gmbh, 6948 Wald-Michelbach Verfahren zum verbinden von borsten mit einem borstentraeger
DE102012005311A1 (de) * 2012-03-19 2013-09-19 Zahoransky Ag Vorrichtung zum Herstellen von Bürsten oder Borstenwaren, sowie Bürste oder Borstenware
EP2377425B1 (fr) * 2010-04-13 2013-10-23 GB Boucherie NV Dispositif et procédé de fabrication de brosses
WO2017182355A1 (fr) * 2016-04-20 2017-10-26 Trisa Holding Ag Produit de type brosse et procédé de fabrication

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016107759B4 (de) * 2015-07-13 2024-11-14 Gb Boucherie Nv Verfahren und Vorrichtung zum Herstellen einer Bürste
BE1024474B1 (de) * 2017-03-27 2018-04-24 Bart Gerard Boucherie Druckplatteneinheit für eine Bürstenherstellungsvorrichtung sowie Bürstenherstellungsvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3403341A1 (de) * 1984-02-01 1985-08-08 Coronet - Werke Heinrich Schlerf Gmbh, 6948 Wald-Michelbach Verfahren zum verbinden von borsten mit einem borstentraeger
EP2377425B1 (fr) * 2010-04-13 2013-10-23 GB Boucherie NV Dispositif et procédé de fabrication de brosses
DE102012005311A1 (de) * 2012-03-19 2013-09-19 Zahoransky Ag Vorrichtung zum Herstellen von Bürsten oder Borstenwaren, sowie Bürste oder Borstenware
WO2017182355A1 (fr) * 2016-04-20 2017-10-26 Trisa Holding Ag Produit de type brosse et procédé de fabrication

Also Published As

Publication number Publication date
TW202348170A (zh) 2023-12-16
EP4035565B1 (fr) 2026-01-21
CN223111240U (zh) 2025-07-18
EP4035565A3 (fr) 2022-11-16
WO2023222270A1 (fr) 2023-11-23
US20250331632A1 (en) 2025-10-30

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