EP3430944B1 - Procédé et dispositif de fabrication de faisceaux de poils - Google Patents

Procédé et dispositif de fabrication de faisceaux de poils Download PDF

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Publication number
EP3430944B1
EP3430944B1 EP18172588.8A EP18172588A EP3430944B1 EP 3430944 B1 EP3430944 B1 EP 3430944B1 EP 18172588 A EP18172588 A EP 18172588A EP 3430944 B1 EP3430944 B1 EP 3430944B1
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EP
European Patent Office
Prior art keywords
bundle
sub
bundles
bristle
plate
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EP18172588.8A
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German (de)
English (en)
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EP3430944A1 (fr
Inventor
Ingo Kumpf
Christian Dürr
Florian Kiefer
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Zahoransky AG
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Zahoransky AG
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Publication of EP3430944A1 publication Critical patent/EP3430944A1/fr
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    • 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 process for the production of bristle bundles for brushes or brooms and to a device for the production of bristle bundles which can be used in the production of brushes.
  • the publication WO 00/51462 A1 discloses such a method and apparatus for making bristle articles. With the help of mechanical take-off devices, endless strands of bristle filaments are fed to the device. The bristles of one type of bristle are combined to form a sub-group and the sub-groups forming a bristle group are combined to form the bristle group. The bristle group is then attached to a bristle holder.
  • WO 2017/088940 A1 is a device for producing bristle fields for brushes.
  • This device has at least one guide element for feeding bristle bundles to a bundle holding plate held ready a continuous guide channel, which are produced by means of a generative manufacturing process.
  • the aim of these methods and devices is to provide bristle bundles for further processing in the manufacture of brushes or brooms.
  • the bristle bundles are fastened in a receiving hole of a perforated field of the respective bristle carrier in order to produce a bristle field on the bristle carrier from the individual bristle bundles.
  • the individual bristle bundles can be fastened in a receiving hole of such a bristle carrier, for example without anchors.
  • the required bristle field designs are becoming more diverse and also more individual.
  • the different reception holes are already today a bristle holder with different bristle bundles.
  • These different bristle bundles are composed, for example, of different bristle filaments.
  • Different-colored bristle bundles are introduced into other receiving holes of the same bristle carrier.
  • a wide variety of filament types are also used in the production of the different bristle bundles. So also those that differ from each other, for example in terms of their cross-section, their material, their length or other parameters.
  • the object of the invention is therefore to provide a method and a device of the type mentioned at the outset which allow an even more individual and flexible design of bristle fields in the production of brushes or brooms.
  • a method for producing bristle bundles for brushes or brooms in which at least one inner partial bundle made of bristle filaments of a first filament type and at least one outer partial bundle made of bristle filaments of a second filament type are combined or combined to form a bristle bundle, that the bristle filaments of the at least one outer partial bundle surround the bristle filaments of the at least one inner partial bundle in a closed manner on the outer circumference.
  • a bristle bundle which is composed of at least two different filament types, which are aligned and separated from one another in a defined relative arrangement within the bristle bundle.
  • the bristle bundle produced in this way can thus have at least two different zones, different filament types then being combined in two zones adjacent to one another in the bristle bundle.
  • bristle bundle that has at least two regions with different colors within the bristle bundle, which are formed by the at least two partial bundles and in which the different filament types are arranged together.
  • a particularly sharp separation of the different filament types on the bristle bundle produced can be achieved if at least one inner partial bundle made of bristle filaments of the first filament type and at least two outer partial bundles made of bristle filaments of the second filament type are combined to form a bristle bundle in such a way that the bristle filaments of the at least two outer partial bundles are combined surround the bristle filaments of the at least one inner partial bundle on the outer circumference. It has been found that a particularly sharp and therefore clear separation of the different filament types, which is carried out via the different partial bundles into the bristle bundle to be produced can be achieved if at least one inner part bundle and two outer part bundles are combined in the manner described above to form a single bristle bundle.
  • the bristle bundles After the bristle bundles have been produced in the manner described above, they can be fastened, for example without anchors, in a bristle carrier provided in order to individually design the bristle field of a brush, in particular a toothbrush, or a broom in the desired manner.
  • Brushes or brooms equipped with such individualized bristle bundles are difficult to copy.
  • the use of such individualized bristle bundles in the production of brushes or brooms also offers a certain protection against counterfeiting and / or product piracy.
  • the copy protection inherent in the bristle bundle produced in this way can be particularly pronounced if the separation of the different filament types in the bristle bundle produced is particularly clear or sharp.
  • the bristle filaments of the at least one outer sub-bundle are arranged in a closed ring around the bristle filaments of the at least one inner sub-bundle.
  • the bristle filaments of the second filament type which are introduced via the at least one or the at least two outer partial bundles, form a closed ring around the bristle filaments of the first filament type, which are introduced into the bristle bundle to be produced with the at least one inner partial bundle.
  • the at least one inner sub-bundle and the at least one outer sub-bundle are shown in conveyed a collecting channel of a collecting plate. This can be done for each sub-bundle, for example by means of compressed air and / or negative pressure via a hollow line.
  • the hollow pipes can be connected to the collecting channels of the collecting plate in such a way that the partial bundles can enter the collecting channels of the collecting plate through the hollow pipes.
  • the partial bundles can then be pushed through delivery openings and brought together to form a bristle bundle.
  • the partial bundles can be pushed out through the delivery openings, for example by means of pressure pins.
  • a pressure pin can preferably be assigned to each delivery opening and / or each collecting channel. In this way, all sub-bundles for a bristle bundle to be produced can be pushed out simultaneously.
  • the sub-bundles can be combined into a bristle bundle in a merging channel of a merging plate. This merging plate can be arranged downstream of the collecting plate.
  • each sub-bundle of a bristle bundle to be produced in one production cycle can be delivered via a delivery opening in each case.
  • the at least one inner delivery opening can be between the then at least two outer delivery openings be arranged. It can be particularly advantageous if the at least one outer discharge opening is designed in such a way that it surrounds the circumference of the at least one inner discharge opening with a degree of enclosure of at least 66 percent, in particular at least 70 percent, preferably at least 73 percent.
  • the degree of containment is to be understood as the proportion of the cumulative angular range in a total circumference of 360 degrees of the at least one inner dispensing opening, which is surrounded radially or on the outer circumference side by the at least one outer dispensing opening.
  • a degree of containment of 66 percent corresponds to an angular range at the at least one inner discharge opening which is covered by the at least one outer discharge opening and is somewhat more than 237 degrees.
  • a degree of enclosure of 75 percent then corresponds to a covered angular range of 270 degrees.
  • 75 percent of the outer circumference of the at least one inner discharge opening is then laterally surrounded by the at least one outer discharge opening.
  • the degree of containment of 66 percent can result from the sum of two degrees of partial containment, each of 33 percent of the two outer discharge openings. Together, the two or more dispensing openings cover at least 66 percent of the outer circumference of the at least one inner dispensing opening.
  • the higher the degree of encapsulation the more reliably the bristle filaments of the at least one outer sub-bundle in the finished bristle bundle can be closed around the bristle filaments of the at least one inner sub-bundle. Very satisfactory results can be achieved with a degree of containment of 73 percent.
  • the partial bundles are compacted before they are brought together to form a bristle bundle. This can happen, for example, in that the sub-bundles are first passed through compressor channels of a compressor plate before they are brought together to form a common bristle bundle.
  • the compressor ducts In comparison to ducts that can be located upstream of the compressor ducts, it is possible for the compressor ducts to have, for example, a cross section that tapers along their longitudinal extent or a smaller cross section.
  • the sub-bundles are contoured while they are being fed to the delivery openings.
  • This contouring of the partial bundles can take place, for example, in that the partial bundles are guided through profile-forming channels of a profile-forming plate.
  • the profile shaping channels can have an inner contour which changes correspondingly along their course to their discharge end. In this way it is possible, for example, to first insert the partial bundles into the profile forming channels with a circular cross section and then to change the partial bundle contours during the transport of the partial bundles through the profile forming channels of the profile forming plate.
  • the profile forming channels can finally, for example, lead to a collecting plate, for example the previously mentioned collecting plate.
  • a device for producing bristle bundles which has at least one feed element with at least one outer delivery opening for delivery of at least one outer sub-bundle and at least one inner delivery opening for delivery of at least one inner sub-bundle of a bristle bundle to be produced, the at least one an outer discharge opening surrounds the at least one inner discharge opening of the feed element with a degree of containment of at least 66 percent on the side or outer circumference.
  • the device is preferably set up to carry out the method described above.
  • the feed element can have at least one outer and at least one inner discharge opening. In this way, several bundles of bristles can be produced simultaneously with the device.
  • the delivery openings through which the partial bundles for the production of a bristle bundle are delivered in one production cycle can be referred to collectively as the bundle delivery unit of the feed plate.
  • the feed element can have at least one corresponding number of bundle delivery units have an inner and at least one outer delivery opening.
  • the at least one feed element can be designed as a collecting plate of the device, which has collecting channels for the partial bundles, which collecting channels in turn open into the discharge openings.
  • the at least one outer discharge opening surrounds the at least one inner discharge opening with a degree of containment of at least 70 percent, preferably of at least 73 percent, on the side or on the outer circumference.
  • a degree of enclosure of the at least one inner delivery opening bristle bundles can be produced, the at least two different filament types of which are arranged in particularly sharp and clearly separated areas or zones in the bristle bundle produced.
  • the device has at least two outer discharge openings and at least one inner discharge opening.
  • the at least one inner discharge opening can be arranged between the at least two outer discharge openings of the device.
  • the at least two outer discharge openings surround the at least one inner discharge opening of the feed element with a cumulative degree of containment of at least 66 percent on the side or outer circumference.
  • the degree of containment of 66 percent can be composed of several, here at least two, partial enclosures, each provided by the at least two outer delivery openings.
  • the delivery openings can have different geometries.
  • the at least one outer dispensing opening is kidney-shaped, annular segment-shaped and / or angled.
  • the at least one inner discharge opening which is usually arranged between the outer discharge openings when using more than just one outer discharge opening, can have a suitable or complementary design and can be, for example, oval, round, circular, rectangular and / or polygonal.
  • the at least one inner discharge opening has a shape that is composed of two or more basic shapes.
  • a delivery opening can consist of a rectangular or square first shape and a semicircular or semi-oval second shape.
  • an outer ring made of bristle filaments of a filament type that can be produced with the aid of the at least one outer discharge openings does not necessarily have to be circular.
  • Square closed or open rings which enclose an inner circular partial bundle of bristle filaments of another filament type are also conceivable.
  • the inner partial bundle which can be dispensed via the at least one inner dispensing opening, can have cross-sectional geometries that deviate from a circular shape.
  • the bristle filaments are evenly distributed within the collecting channels and especially within the delivery openings.
  • a horizontal dimension that can be measured transversely or at right angles to the direction of gravity is greater than a vertical dimension of the outer discharge opening that is largest measurable in the direction of gravity.
  • a dimension of a projection of the at least one outer discharge opening on an axis perpendicular to the direction of gravity, which is contained in an opening plane defined by the discharge opening, measured when the feed element is in the use position can be larger than a dimension of a projection of the outer discharge opening on a axis parallel to the direction of gravity and axis in the opening plane.
  • outer discharge openings in the form of a ring segment in the case of a ring segment, this can mean that the outer discharge openings are oriented transversely or at right angles to the direction of gravity. This favors minimal gravity-related compression of the sub-bundle in such a discharge opening and its upstream collecting channel. With a vertical alignment of such circular segment-shaped delivery openings, the probability that the still comparatively loosely packed bristle filaments of the partial bundles would collect in a lower area of the respective outer delivery opening due to the action of gravity and the packing density of the bristle filaments in the outer delivery opening would decrease towards the top.
  • the device has a hollow line for each delivery opening, which leads at least indirectly into the at least one feed element with the delivery openings empties.
  • the sub-bundles can be fed to the feed element through the hollow lines, for example with negative pressure and / or compressed air.
  • the partial bundles intended for the production of a bristle bundle also pass through the hollow lines into the collecting channels of the feed element in order to then be discharged from the discharge openings and brought together to form a single bristle bundle.
  • an inner contour of at least one of the hollow pipes has a contour change in the course up to a discharge end of the hollow pipes towards a partial bundle contour desired in the at least one feed element
  • the partial bundles can be contoured in the desired manner on their way to the feed element and to the discharge openings. This can simplify the handling of the sub-bundles before they enter the hollow pipes.
  • the device can have a profile forming plate, which for each delivery opening comprises a profile forming channel at least as a partial section of a hollow line of the device.
  • the profile shaping channels can have an inner contour that changes according to the desired partial bundle contour along the course of their delivery end.
  • the profile shaping channels can have, for example, a circular entrance cross section at their entry end, which changes in the course of the discharge end of the profile forming channels towards the cross section or the shape of the respective delivery opening, which is decisive for the partial bundle contour.
  • the discharge ends of the profile forming channels can expediently have the same cross-sectional shape as the respective delivery openings and / or collecting channels into which the profile forming channels open.
  • the profile forming plate can particularly preferably be in one generative manufacturing processes, for example, be produced in 3D printing. In this way, particularly complex courses and cross-sectional geometries of the profile shaping channels of the profile shaping plate can also be realized.
  • the device can have a compressor plate which comprises a compressor channel for each discharge opening.
  • the partial bundles can first be compressed before being combined into a bristle bundle.
  • This can be understood to mean, for example, the increase in the packing density of the individual bristle filaments within a sub-bundle.
  • at least one, in particular an outer, compressor duct for receiving an outer sub-bundle can be provided with an inlet chamfer and / or with an outlet chamfer. In this way, the entry of the sub-bundles into the compressor duct equipped with an entry chamfer can be facilitated and the compression of the sub-bundles can also be promoted.
  • An exit chamfer can facilitate the exit of the partial bundles from the compressor duct and the transition of the partial bundles into an area of the device arranged downstream of the compressor plate. It can be particularly advantageous if each of the existing compressor channels is provided with an inlet chamfer and / or an outlet chamfer.
  • the compressor ducts can have an inner cross section that tapers in the conveying direction of the partial bundles. Reliable compression of the sub-bundles introduced into the compressor ducts can also be achieved with compressor ducts which have an inner cross-section which is smaller than that of upstream ducts and / or hollow ducts.
  • the inner cross section of the compressor ducts can particularly preferably be smaller than an inner cross section of the respective delivery openings, from which it receives the partial bundles.
  • the device can comprise a merging plate with at least one merging channel.
  • the individual partial bundles can be brought together to form a bristle bundle in this at least one merging channel.
  • the junction channel can also preferably have an entry chamfer.
  • the merging plate can be arranged and / or to be arranged downstream of the compressor plate.
  • the merging plate can have a number of merging channels which corresponds to the number of bristle bundles which are to be able to be produced with the device from sub-bundles in one production cycle.
  • the compressor channels of the compressor plate provided for the production of a bristle bundle can open together in a junction channel when the junction plate is in the use position.
  • Such a device has, for example on its junction plate, a corresponding number of junction channels which are provided for the production of a plurality of bristle filaments in one production cycle.
  • a compressor plate of such a device with a corresponding number of compressor channels fitted.
  • n times the delivery openings and collecting channels are provided, where n corresponds to the number of bristle bundles that can be produced with the device in one production cycle.
  • n bundle delivery units each with at least one outer and at least one inner delivery opening.
  • the device may further comprise an impact plate.
  • the dispensing openings can be closed at least temporarily. This is particularly the case during the transport of the sub-bundles by means of compressed air and / or negative pressure into the collecting channels of the feed element.
  • the special feature of the baffle plate is that, although it is permeable to air or compressed air, it is impermeable to the individual bristle filaments of the partial bundles transported by means of compressed air and / or negative pressure into the collecting channels. In this way it is possible to apply a negative pressure to the discharge openings without sucking out the bristle filaments of the partial bundles from the discharge openings.
  • the baffle plate can be formed, for example, from a braid fabric. Such a weft weave can be permeable to air / compressed air, but impermeable to the bristle filaments. The bristle filaments can be retained in the collecting channels using the baffle plate.
  • the device can comprise a stop plate.
  • This stop plate can be positioned at least temporarily in front of the discharge ends of the compressor channels of the compressor plate. This is particularly the case when the partial bundles are pushed out of the collecting plate into the compressor channels of the compressor plate.
  • the sub-bundles are usually pushed out mechanically by means of pressure pins.
  • the stop plate serve as an end stop for the partial bundles during their transport into the compressor ducts.
  • the device has a vacuum source for transporting the partial bundles into the at least one feed element, in particular into the collecting plate.
  • the vacuum source With the vacuum source, the sub-bundles can be transported into the at least one feed element of the device with the aid of compressed air and / or vacuum. Such transport of the sub-bundles can be gentle on both the sub-bundles and the device.
  • the device can have at least one ejection device.
  • This push-out device can comprise at least one pressure pin with which the partial bundles can be pushed out of the collecting plate and / or the merging plate.
  • the at least one push-out device particularly preferably has as many pressure pins as the device has discharge openings for partial bundles.
  • the object is also achieved by using a device according to one of the claims directed to the device when carrying out the method according to one of the claims directed to the method.
  • FIGS Figures 1 to 5 and FIG. 7 show at least parts of a device for producing bristle bundles 2, which is designated overall by 1. Examples of bristle bundles 2 that can be produced with device 1 are shown in FIGS Figures 1 . 6 and 8 displayed.
  • the device 1 comprises at least one feed element 3, which in the present exemplary embodiment of the device 1 is designed as a collecting plate 3.
  • the feed element 3 has at least one outer delivery opening 4 for delivery of at least one outer sub-bundle 5 of a bristle bundle 2 to be produced and at least one inner delivery opening 6 for delivery of an inner sub-bundle 7 of the bristle bundle 2 to be produced ,
  • These outer and inner delivery openings 4 and 6 together form a bundle delivery unit 8 on the collecting plate 3.
  • the at least one outer discharge opening 4 surrounds the at least one inner discharge opening 6 of the feed element 3 with a degree of containment of at least 66 percent on the outer circumference. If a plurality of outer delivery openings 4 are provided, each one also surrounds the at least one inner delivery opening 6, possibly with a smaller degree of enclosure.
  • the accumulated degree of containment of all outer delivery openings Here, too, 4 is at least 66 percent, so that at least 66 percent of the outer circumference of the at least one inner dispensing opening 6 is surrounded on the outer circumference by the outer dispensing openings 4.
  • FIG. 7 This is particularly good in Figure 7 can be seen in which a collecting plate is shown as a feed element 3, which is set up to produce a total of three differently shaped bristle bundles 2 in one production cycle.
  • this collecting plate 3 on its in Figure 7 shown front three bundle delivery units 8 with outer and inner delivery openings 4 and 6.
  • Each of these three bundle delivery units 8 has at least two outer delivery openings 4 and at least one inner delivery opening 6. At the lowest bundle delivery unit 8 in Figure 7 three inner delivery openings 6 are provided, which are surrounded by a total of three outer delivery openings 4 on the outer circumference.
  • Each of the collecting plates 3 shown in the figures, which serve as feed elements, has collecting channels 9, one of which opens into one of the delivery openings 4 and 6 of the collecting plates 3.
  • the collecting channels 9 serve to receive sub-bundles 5 and 7.
  • the at least two outer delivery openings 4 surround the at least one inner delivery opening 6 of the respective bundle delivery unit 8 with a degree of containment of a total of approximately at least 73 percent on the outer peripheral side.
  • a bundle delivery unit 8 which consists of a plurality of delivery openings 4 and 6, the two outer discharge openings 4 are designed in the shape of a circular segment.
  • Figure 9 illustrates the special orientation of the two outer delivery openings 4 of the in Figure 7 at the top shown bundle delivery unit 8 and its delivery openings 4 and 6. It is noticeable that when the feed element 3 is in the position of use at right angles to the direction of gravity Pf.1, the greatest measurable horizontal extent A of both outer delivery openings 4 is greater than the largest measurable in the direction of gravity Pf.1 vertical extension B of the discharge openings 4 is.
  • the discharge openings 4 are therefore aligned lying around the one inner discharge opening 6. This can favor a uniform filling of the discharge openings 4 and the collecting channels 9 arranged behind them with individual bristle filaments of the partial bundles 5.
  • Each discharge opening 4, 6 is fed through a hollow line 10 of the device 1.
  • each of the hollow lines 10 opens into the at least one feed element 3, which is designed here as a collecting plate 3 with a plurality of collecting channels 9.
  • the sub-bundles 5 and 7 can be fed to the feed element 3, for example with negative pressure and / or compressed air, through the hollow lines 10.
  • the device 1 Upstream of the collecting plate 3 in the transport direction Pf.2 of the partial bundles 5, 7 by the device, the device 1 also comprises a profile-forming plate 11.
  • the profile-forming plate 11 has a profile forming channel 12 for each delivery opening 4 and 6.
  • the profile shaping channels 12 are provided at least as partial sections of the previously mentioned hollow pipes 10 of the device 1.
  • the hollow pipes 10 In the area of these subsections of the hollow pipes 10, the hollow pipes 10 have an inner contour which, in the course of the hollow pipe 10, has a contour change towards a partial bundle contour, which is desired in the at least one feed element 3.
  • the profile-forming channels 12 of the profile-forming plate 11 are provided with an inner contour which changes along their course to their respective discharge end 13 with a cross-sectional shape of the discharge openings 4 and 6.
  • the discharge ends 13 of the profile forming channels 12 have the same cross-sectional shapes as the respective discharge openings 4 and 6 and as the collecting channels 9, which are upstream of the discharge openings 4 and 6.
  • the device 1 also has a compressor plate 14. This compressor plate 14 is arranged downstream of the collecting plate 3 and comprises a compressor channel 15 for each of the discharge openings 4 and 6.
  • Figure 1 clearly shows that all three compressor channels 15 are provided with inlet chamfers 16. These inlet chamfers 16 facilitate the transition of the partial bundles 5 and 7 from the discharge openings 4 and 6 into the compressor channels 15 of the compressor plate 14. At least the two outer compressor channels 15 of the compressor plate 14 are also each provided with an outlet chamfer 17. This exit chamfer 17 facilitates the transition of the partial bundles 5 from the compressor plate 14 to a downstream merging plate 18 of the device 1. In this, the partial bundles 5 and 7 are merged or combined into the bristle bundle 2 to be produced.
  • the device 1 For each bristle bundle 2 that is to be produced in one production cycle with the device 1, the device 1 has a merging channel 19 in the merging plate 18. In this merging channel 19, the partial bundles 5 and 7 are merged into a bristle bundle 2. Such a bundle of bristles 2 is on the far left in Figure 1 to recognize.
  • the merging channel 19 is also provided with an entry chamfer 16 which facilitates a transition of the partial bundles 5 and 7 from the compressor channels 15 of the compressor plate 14 into the merging channel 19 of the merging plate 18.
  • the device 1 further comprises a baffle plate not shown separately in the figures.
  • the discharge openings 4 and 6 of the feed element 3 designed as a collecting plate can be closed from time to time.
  • the baffle plate is brought in front of the discharge openings 4, 6 of the collecting plate. This happens in particular when partial bundles 5 and 7 are introduced into the collecting channels 9 of the collecting plate 3 by means of compressed air and / or negative pressure.
  • One property of the baffle plate is that the baffle plate is permeable to air or compressed air, but the individual bristle filaments of the Sub-bundles 5 and 7 can withhold from an exit from the discharge openings 4 and 6. It has proven to be expedient to produce such a baffle plate from an air-permeable braid fabric. Although this weft weave is passable for air or compressed air, the individual openings in the weave are so small that the passage of individual bristle filaments can be prevented.
  • the device 1 also comprises a stop plate, likewise not shown separately in the figures.
  • This stop plate can be positioned in front of the outlet ends of the compressor channels 15 of the compressor plate 14. In this position, the stop plate then serves as an extension of the extension.
  • Such an extension of the extension is particularly useful when the sub-bundles 5 and 7 located in the receiving plate 3 are mechanically pushed into the compression channels 15 of the compression plate 14 by means of pressure pins.
  • the device also has a vacuum source 20 which generates the vacuum which is required for transporting the partial bundles 5 and 7 into the collecting plate of the device 1 which serves as the feed element 3.
  • the device 1 For further transport of the partial bundles 5 and 7 arranged in the collecting plate 3 to the downstream compression plate 14, the device 1 is also equipped with an ejection device which has a corresponding number of pressure pins. With the help of the push-out device and its pressure pins, the partial bundles 5 and 7 located in the collecting channels 9 of the collecting plate 3 can then be pushed out and transferred to the downstream compression plate 14.
  • the device 1 described above is set up to carry out the method described below.
  • bristle bundles 2 which can be used for brushes or brooms
  • at least one inner partial bundle 7 made of bristle filaments of a first filament type and at least one outer partial bundle 5 made of bristle filaments of a second filament type are combined in this way to form a bristle bundle 2 that the bristle filaments of the at least one outer partial bundle 5 surround the bristle filaments of the at least one inner partial bundle 7 in a closed manner on the outer circumference.
  • At least one inner partial bundle 7 made of bristle filaments of the first filament type and at least two outer partial bundles 5 made of bristle filaments of the second filament type are combined to form the bristle bundle 2 such that the bristle filaments of the outer partial bundle 5 surround the bristle filaments of the at least one inner sub-bundle 7 on the outer circumference.
  • the at least one inner sub-bundle 7 and the outer sub-bundle 5 are conveyed by means of compressed air and / or negative pressure via a hollow line 10 per sub-bundle 5 and 7 in each case into a collecting channel 9 of the collecting plate serving as feed element 3.
  • Sub-bundles 5 and 7 are then pushed through delivery openings 4 and 6 by means of pressure pins pushed.
  • the sub-bundles 5 and 7 then reach the merging channel 19 of the merging plate 18.
  • the sub-bundles 5 and 7 are merged and combined into a common bristle bundle 2.
  • the outer sub-bundles 5 are each delivered via an outer delivery opening 4.
  • the at least one inner sub-bundle 7 is delivered in each case via an inner delivery opening 6 of the collecting plate 3.
  • the outer delivery openings 4 surround the at least one inner delivery opening 6 with a cumulative degree of containment of at least 66 percent. In the exemplary embodiment of the discharge openings 4 and 6, the degree of containment should be greater than 70 percent.
  • the partial bundles 5 and 7 are also compressed before they are combined or combined into the bristle bundle 2. This is done by passing them through the compressor channels 15 of the compressor plate 14 of the device 1.
  • the sub-bundles 5 and 7 are also contoured and receive a defined sub-bundle contour.
  • This sub-bundle contour already has the sub-bundles 5 and 7 if they are arranged in the collecting channels 9 of the collecting plate 3 before they emerge from the delivery openings 4 and 6.
  • the respective sub-bundle contours receive the sub-bundles 5, 7 by passing them through the profile forming channels 12 of the profile forming plate 11 of the device.
  • These profile shaping channels 12 have an inner contour which changes correspondingly along their course to the discharge ends 13.
  • the invention is concerned with improvements in the technical field of brush manufacturing.
  • the device 1 for producing bristle bundles 2 is proposed for this purpose.
  • the at least one feed element 3 is provided, which has at least one outer delivery opening 4 for delivery of at least one outer sub-bundle 5 of a bristle bundle 2 to be produced and at least one inner delivery opening 6 for delivery of an inner sub-bundle 7 of a bristle bundle 2 to be produced.
  • the at least one outer delivery opening 4 and the at least one inner delivery opening 6 of the feed element 3 a degree of containment of at least 66 percent on the side or outer circumference.

Claims (19)

  1. Procédé de fabrication de faisceaux de poils (2) pour des brosses ou des balais, dans lequel on réunit au moins un faisceau partiel intérieur (7) composé de filaments de poils d'un premier type de filament et au moins un faisceau partiel extérieur (5) composé de filaments de poils d'un second type de filament en un faisceau de poils (2), de telle manière que les filaments de poils dudit au moins un faisceau partiel extérieur (5) entourent de façon fermée à la périphérie extérieure les filaments de poils dudit au moins un faisceau partiel intérieur (7), caractérisé en ce que l'on transporte ledit au moins un faisceau partiel intérieur (7) et ledit au moins un faisceau partiel extérieur (5) au moyen d'air comprimé et/ou d'une dépression respectivement par un conduit creux (10) respectivement dans un canal de réception (9) d'une plaque de réception (3), puis on glisse les faisceaux partiels (5, 7) à travers des ouvertures de décharge (4, 6) et on les réunit ensuite en un faisceau de poils (2).
  2. Procédé selon la revendication 1, caractérisé en ce que l'on réunit au moins un faisceau partiel intérieur (7) composé de filaments de poils du premier type de filament et au moins deux faisceaux partiels extérieurs (5) composés de filaments de poils du second type de filament en un faisceau de poils (2), de telle manière que les filaments de poils des faisceaux partiels extérieurs (5) entourent de façon fermée à la périphérie extérieure les filaments de poils dudit au moins un faisceau partiel intérieur (7).
  3. Procédé selon une revendication 1 ou 2, caractérisé en ce que l'on glisse les faisceaux partiels (5, 7) au moyen de tiges de poussée à travers les ouvertures de décharge (4, 6) et on les réunit ensuite en un faisceau de poils (2) dans un canal d'assemblage (19) d'une plaque d'assemblage (18).
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'on décharge ledit au moins un faisceau partiel extérieur (5) respectivement par une ouverture de décharge extérieure (4) et ledit au moins un faisceau partiel intérieur (7) respectivement par une ouverture de décharge intérieure (6) d'une ou de la plaque de réception (3), dans lequel ladite au moins une ouverture extérieure (4) entoure/entourent ensemble à la périphérie ladite au moins une ouverture intérieure (6) avec un degré d'entourage d'au moins 66 % au total, en particulier d'au moins 70 % au total, de préférence d'au moins 73 % au total.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'on comprime les faisceaux partiels (5, 7), avant de les réunir en un faisceau de poils (2), en particulier par le fait qu'on les conduit à travers des canaux de compresseur (15) d'une plaque de compresseur (14).
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'on dote les faisceaux partiels (5, 7) d'un contour pendant leur envoi aux ouvertures de décharge (4, 6) et ils reçoivent ainsi un contour de faisceau partiel défini.
  7. Dispositif (1) de fabrication de faisceaux de poils (2), conçu en particulier pour la mise en œuvre du procédé selon l'une quelconque des revendications 1 à 6, dans lequel le dispositif (1) présente au moins un élément d'amenée (3) avec au moins une ouverture de décharge extérieure (4) pour décharger respectivement au moins un faisceau partiel extérieur (5) et au moins une ouverture de décharge intérieure (6) pour décharger respectivement un faisceau partiel intérieur (7) d'un faisceau de poils à fabriquer (2), dans lequel ladite au moins une ouverture de décharge extérieure (4) entoure ensemble à la périphérie extérieure ladite au moins une ouverture de décharge intérieure (6) avec un degré d'entourage d'au moins 66 % au total, caractérisé en ce que le dispositif (1) comprend une plaque d'impact, avec laquelle les ouvertures de décharge (4, 6) de l'élément d'amenée (3) peuvent être fermées au moins temporairement pendant le transport des faisceaux partiels (5, 7) au moyen d'air comprimé et/ou d'une dépression dans les canaux de réception (9).
  8. Dispositif (1) selon la revendication 7, caractérisé en ce que ledit au moins un élément d'amenée (3) est réalisé sous la forme d'une plaque de réception (3), qui présente des canaux de réception (9) débouchant dans les ouvertures de décharge (4, 6) pour les faisceaux partiels (5, 7), et/ou en ce que ladite au moins une ouverture de décharge extérieure (4), de préférence lesdites au moins deux ouvertures de décharge extérieures (4), entoure/entourent ensemble latéralement ou à la périphérie extérieure ladite au moins une ouverture de décharge intérieure (6) avec un degré d'entourage d'au moins 70 % au total, de préférence d'au moins 73 %.
  9. Dispositif (1) selon une revendication 7 ou 8, caractérisé en ce que ladite au moins une ouverture de décharge extérieure (4) est réalisée en forme de rein, en forme de segment d'anneau circulaire et/ou en forme d'angle et/ou en ce que ladite au moins une ouverture de décharge intérieure (6) est réalisée sous forme ovale, ronde, circulaire, rectangulaire et/ou polygonale.
  10. Dispositif (1) selon l'une quelconque des revendications 7 à 9, caractérisé en ce qu'une plus grande extension horizontale mesurable (A) d'au moins une ouverture de décharge extérieure (4), transversale ou perpendiculaire à la direction de la gravité (Pf.1) lorsque l'élément d'amenée (3) se trouve dans la position d'utilisation, est plus grande qu'une plus grande extension verticale mesurable (B) de l'ouverture de décharge extérieure (4) dans la direction de la gravité (Pf.l).
  11. Dispositif (1) selon l'une quelconque des revendications 7 à 10, caractérisé en ce que le dispositif (1) présente pour chaque ouverture de décharge (4, 6) respectivement un conduit creux (10), qui débouche au moins indirectement dans ledit au moins un élément d'amenée (3) et à travers lequel des faisceaux partiels (5, 7) peuvent être envoyés à l'élément d'amenée (3) par une dépression et/ou de l'air comprimé.
  12. Dispositif (1) selon la revendication 11, caractérisé en ce qu'un contour intérieur d'au moins un des conduits creux (10) présente dans le tracé du conduit creux (10) un changement de contour vers un contour de faisceau partiel désiré dans ledit au moins un élément d'amenée (3).
  13. Dispositif (1) selon une des revendications 11 ou 12, caractérisé en ce que le dispositif (1) présente une plaque de formage de profil (11), de préférence fabriquée par un procédé de fabrication générative, en particulier par impression 3D, qui comprend pour chaque ouverture de décharge (4, 6) un canal de formage de profil (12) au moins comme section partielle des conduits creux (10) du dispositif (1), dans lequel les canaux de formage de profil (12) présentent le long de leur tracé vers leur extrémité de décharge (13) un contour intérieur changeant vers la forme de la section transversale des ouvertures de décharge (4, 6), de préférence de telle manière que les extrémités de décharge (13) des canaux de formage de profil (12) présentent la même forme de section transversale que les ouvertures de décharge respectives (4, 6) et/ou que les canaux de réception respectifs (9).
  14. Dispositif (1) selon l'une quelconque des revendications 7 à 13, caractérisé en ce que le dispositif (1) présente une plaque de compresseur (14), dans lequel la plaque de compresseur (14) comprend pour chaque ouverture de décharge (4, 6) respectivement un canal de compresseur (15), de préférence dans lequel au moins un canal de compresseur (15) est muni d'un chanfrein d'entrée (16) et/ou d'un chanfrein de sortie (17).
  15. Dispositif (1) selon l'une quelconque des revendications 1 à 14, caractérisé en ce que le dispositif (1) comprend une plaque d'assemblage (18) avec au moins un canal d'assemblage (19), dans lequel les faisceaux partiels (5, 7) peuvent être réunis en un faisceau de poils (2), de préférence dans lequel le canal d'assemblage (9) présente un chanfrein d'entrée (16).
  16. Dispositif (1) selon la revendication 15, caractérisé en ce que la plaque d'assemblage (18) est ou peut être disposée en aval de la plaque de compresseur (14), en particulier dans lequel les canaux de compresseur (15) de la plaque de compresseur (14) débouchent ensemble dans le canal d'assemblage (19) lorsque la plaque d'assemblage (18) se trouve dans la position d'utilisation.
  17. Dispositif (1) selon l'une quelconque des revendications 7 à 16, caractérisé en ce que le dispositif (1) présente une plaque de butée, qui peut être positionnée devant des extrémités de sortie des canaux de compresseur (15) de la plaque de compresseur (14).
  18. Dispositif (1) selon l'une quelconque des revendications 7 à 17, caractérisé en ce que le dispositif (1) présente pour le transport des faisceaux partiels (5, 7) dans ledit au moins un élément d'amenée (3) une source de dépression (20), et/ou en ce que le dispositif (1) présente, pour l'acheminement de faisceaux partiels (5, 7) disposés dans l'élément d'amenée (3) à la plaque de compresseur qui suit (14) et/ou de faisceaux partiels (5, 7) disposés dans la plaque de compresseur (14) à la plaque d'assemblage qui suit (18), au moins un dispositif d'expulsion, en particulier avec au moins une tige de poussée.
  19. Utilisation d'un dispositif (1) selon l'une quelconque des revendications 7 à 17 lors de la mise en œuvre du procédé selon l'une quelconque des revendications 1 à 6.
EP18172588.8A 2017-07-20 2018-05-16 Procédé et dispositif de fabrication de faisceaux de poils Active EP3430944B1 (fr)

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