Device for conveying bristle bundles for producing bristle products and bristle product production machine

Abstract

The utility model relates to a device for conveying bristle bundles for manufacturing bristle products and a bristle product manufacturing machine. The utility model relates to a device for conveying bristle bundles for producing bristle products, said device comprising at least one orifice plate having at least one orifice region consisting of receiving orifices into which the bristle bundles can be transported by a flow generated by a negative pressure, and at least one baffle plate arranged downstream of the orifice plate, the utility model relates to a device for conveying bristle bundles into receiving holes of an orifice plate, comprising a baffle (4) having at least one baffle surface as a stop for bristle bundles to be conveyed into the receiving holes of the orifice plate, the baffle having an aerodynamic shape, and comprising a housing (16) having a receptacle (17) for the baffle (4), the receptacle (17) having a streamline-shaped inner contour formed corresponding to the aerodynamically shaped baffle (4). According to the utility model, the conveying of the bristle bundles for manufacturing bristle products is simplified.

Description

Technical Field

[0001] The utility model relates to a device for conveying bristle bundles for manufacturing bristle products, in particular toothbrushes. The device comprises at least one orifice plate having at least one hole area composed of receiving holes and at least one baffle plate arranged downstream of the orifice plate, the bristle bundles can be transported to the receiving holes by a flow generated by negative pressure, and the baffle plate comprises at least one baffle surface as a stopper for the bristle bundles to be transported to the receiving holes of the orifice plate. In addition, the utility model also relates to a bristle product manufacturing machine, in particular a brush manufacturing machine, having such a device. Background Art

[0002] Devices of the above type are known in practice in different embodiments. A device for transporting yarn is known from document US2020 / 383 469 A1, which has: a plurality of tube elements for transporting yarn from an inlet area to an outlet area through an air flow, the air flow being generated by negative pressure or overpressure, wherein each tube element has an end opening; a deflection plate unit, the deflection plate unit comprising a deflection plate having an upper surface and a lower surface, the upper surface being arranged opposite to the end openings of the plurality of tube elements so as to stop the transport of the yarn, the lower surface being arranged opposite to the upper surface, wherein the deflection plate has a plurality of deflection plate elements, wherein each deflection plate element is connected to one of the end openings and arranged opposite to the corresponding end opening, so that the yarn transported through the corresponding tube element stops through the corresponding deflection plate element.

[0003] The device for conveying bristle bundles is used to transport the bristle bundles previously separated from the bristle supply into the perforated plate by means of a vacuum (eg a hose) by means of a gas or air flow during the production of bristle products (eg toothbrushes).

[0004] The purpose of the baffle plate arranged downstream of the perforated plate is to stop the bristle bundles arriving at a relatively high speed.

[0005] The baffle can be arranged directly behind the perforated plate and only a few tenths of a millimeter away from the perforated plate. As a result, side gaps are formed between the baffle and the perforated plate, through which negative pressure can act on the suction tube to generate a gas or air flow. In practice, the baffle surface of the baffle is usually also formed by a fine-mesh fabric, so that part of the gas or air flow can flow through the fabric, i.e., through the baffle surface, to suck in the bristle bundle.

[0006] This fabric can become clogged over time due to contaminants, such as abrasive dust, which can adhere to the bristle filaments that make up the bristle bundle. As a result, the negative pressure in the suction tube continuously decreases as the fabric becomes more contaminated. The baffle must then be cleaned ultrasonically or replaced completely. Utility Model Content

[0007] Therefore, the purpose of the present invention is to simplify the conveying of bristle bundles for manufacturing bristle products.

[0008] In order to achieve this object, a device having the characteristics of the invention is proposed, which is particularly characterized in that the baffle has an aerodynamic shape.

[0009] According to the utility model, a device for conveying bristle bundles for manufacturing bristle products is provided, wherein the device comprises at least one perforated plate having at least one hole area consisting of receiving holes and at least one baffle plate arranged downstream of the perforated plate, the bristle bundles can be transported into the receiving holes by a flow generated by negative pressure, the baffle plate having at least one baffle surface as a stop for the bristle bundles to be transported into the receiving holes of the perforated plate, the baffle plate having an aerodynamic shape, and the device comprising a housing having a receiving portion for the baffle plate, wherein the receiving portion has a streamlined inner contour constructed corresponding to the aerodynamically shaped baffle plate.

[0010] The aerodynamic shape of the baffle can reduce or even completely avoid the formation of turbulence in the flow for transporting the bristle bundles into the receiving openings of the perforated plate or interruptions in the flow for transporting the bristle bundles into the receiving openings of the perforated plate.

[0011] In one embodiment of the device, it is provided that the aerodynamic shape of the baffle comprises at least one streamlined section, which is arranged downstream of at least one baffle surface of the baffle in the flow direction. The streamlined section arranged downstream of at least one baffle surface of the baffle promotes the formation of a gas flow or air flow, which is guided by the contour of the streamlined section, so that interruptions of the flow are avoided and turbulence is formed as little as possible. In this case, the flow-optimized contour of the streamlined section can promote laminar flow when the bristle bundle is sucked into the orifice plate. As a result, additional suction openings in the area of ​​the baffle surface and in particular the aforementioned fabric can become unnecessary. By means of the streamlined section and its flow-optimized contour, a baffle can be provided which no longer has flow openings that are relatively easily blocked by contaminants.

[0012] The aerodynamic shape of the baffle can include a baffle surface adapted to the shape of the hole area of ​​the orifice plate. By the shape of the baffle surface adapted to the shape of at least one hole area of ​​the orifice plate in one embodiment of the device, the path of the fluid, in particular the gas flow or air flow, from the receiving hole of the orifice plate through the baffle plate through the device can be reduced. The flow has to be diverted relatively less by the shaping of the at least one baffle surface adapted to the shape of at least one hole area of ​​the orifice plate, which helps to avoid the interruption of the flow or the formation of turbulence in the flow mentioned above. The at least one hole area and the at least one baffle surface can have the same shape, for example rounded or circular.

[0013] Turbulence in the flow can lead to the accumulation of contaminants (such as the grinding dust already mentioned) in certain areas of the device (for example in the area of ​​the baffles) and result in an impairment of the function of the device.

[0014] The removal of such contaminants is improved by a flow through the device which is as turbulent-free or laminar as possible, so that contamination of the device can be largely avoided during operation of the device.

[0015] The orifice plate of the device can for example comprise at least two apertures with receiving holes. In addition, the baffle plate can have a stop face with the number of consistent numbers of the apertures of the orifice plate. In this way, a stop face of the baffle plate can be provided for each aperture of the orifice plate.

[0016] A streamlined section can be arranged downstream of each baffle surface of the baffle plate. With the help of this streamlined section, the fluid can be guided in an optimal manner for each aperture area to draw the bristle bundle into the receiving hole of the aperture plate.

[0017] At least one streamlined section of the baffle can have a geometry that tapers in the flow direction, in particular conically or spherically. Such a geometry can promote the formation of a low-turbulence, preferably turbulence-free and / or laminar flow.

[0018] In principle, it is suitable and advantageous if the baffle has as few sharp-edged transitions as possible, preferably no sharp-edged transitions, on the surface in contact with the fluid. It is particularly advantageous if the aerodynamic shape of the baffle has a rounded transition between at least one baffle surface of the baffle and the streamlined section of the baffle. In this way, sharp-edged transitions between the baffle surface and the streamlined section of the baffle, which could promote the formation of turbulence in the fluid, are avoided. This promotes the formation of a low-turbulence or turbulence-free flow in the region of the transition between the baffle surface and the streamlined section.

[0019] In one embodiment of the baffle, the aerodynamic shape of the baffle has a constriction between two adjacent baffle surfaces of the baffle. Here, the constriction can be contained in a cross section of the baffle, which contains the two adjacent baffle surfaces of the baffle. As a result, no material of the baffle is present in the region of the constriction, which would hinder the formation of a preferred laminar flow for transporting the bristle bundles into the receiving holes of the perforated plate. The aerodynamic shape of the baffle can include a rounded contour between adjacent baffle surfaces, for example in the region of the constriction as described above, in order to avoid sharp transitions or geometries.

[0020] At least one streamlined section can have a mirror-symmetrical longitudinal section and / or be rotationally symmetrical.

[0021] In this case, the longitudinal section can be contained in a section plane oriented along the longitudinal axis of the streamlined section. The longitudinal axis of the streamlined section can be oriented in the main transport direction of the bristle bundle into the receiving hole of the perforated plate and / or in the main flow direction of the fluid through the streamlined section during operation of the device.

[0022] At least one streamlined section may have a longitudinal section defined by a plurality of arcs. Two arcs, which may be arranged on different sides of the center axis of the longitudinal section, may be connected to each other on the side of the baffle facing away from the baffle surface. Here, the arcs may each extend around a center point arranged outside the baffle. As a result, the two arcs have a relatively large radius, which may promote the streamlined shape of the streamlined section. The streamlined section may have a drop-shaped or oval geometry when viewed in the longitudinal section.

[0023] The longitudinal section of the streamlined section can have a rounded end facing away from the stop surface. In this way, sharp edges or tips at the ends of the streamlined section are avoided, which in turn promotes the formation of a low-turbulence or turbulence-free flow around the streamlined section.

[0024] The baffle can have at least one flow guiding structure. The at least one flow guiding structure can be at least partially configured on the at least one streamlined section. The at least one flow guiding structure can also promote the formation of a low-turbulence or turbulence-free, preferably laminar flow.

[0025] In one embodiment of the device, it is provided that the baffle plate has at least one flow channel as a flow guiding structure. For example, the flow channel can be constructed on the outside of the section. Then, the flow channel can be called a flow groove. In one embodiment of the device, it is provided that the baffle plate has at least one flow channel as a flow guiding structure, which passes through the baffle plate, preferably through the streamlined section of the baffle plate. Such a flow channel can be divided into two or more sub-channels and / or come out on the back side of the baffle plate away from the baffle surface.

[0026] At least one of the baffle surfaces of the baffle may have at least one inlet opening for entering the flow channel of the baffle. In this way, a negative pressure is applied close to the receiving hole of the orifice plate to form a flow for transporting the bristle bundles into the receiving hole of the orifice plate. In this regard, it should be mentioned that it may be advantageous if such an inlet opening is arranged on the baffle surface of the baffle in a staggered manner relative to the receiving hole of the baffle. In this way, it is avoided that the bristle bundles transported to the receiving hole of the orifice plate are sucked into the flow channel of the baffle through the inlet opening. Therefore, such an inlet opening arranged in the baffle surface in a staggered manner relative to the receiving hole of the orifice plate does not have to be covered with a fine mesh fabric to avoid sucking in the bristle filaments. In addition, the inlet opening can be relatively large, which can prevent the inlet opening from being blocked by contaminants.

[0027] In one embodiment of the device, it is provided that the baffle surface of the baffle plate is perforated. For this purpose, the baffle surface can have at least one flow opening, preferably a drilled hole, particularly preferably a laser drilled hole.

[0028] This device comprises the housing with the receiving portion for baffle plate according to the utility model.Therefore, housing and its receiving portion can be used as suction hood, negative pressure can be applied to the suction hood to transport the bristle bundle in the receiving hole of the orifice plate.

[0029] In order to form the flow already explained above, it is expedient for the receiving part of the housing to have a streamlined inner contour which is designed corresponding to the at least one streamlined section. In this case, the inner contour can also be kept as free of sharp edges and / or transitions as possible. This helps to avoid turbulence when the flow passes through the receiving part and improves the aerodynamics inside the device which is beneficial to the function of the device.

[0030] The housing can have at least one flow channel oriented in the longitudinal axis direction of the baffle and / or at least one flow channel oriented transversely to the longitudinal axis of the baffle. The flow channel can be defined by the inner contour of the receiving portion and / or the outer contour of the baffle, in particular the outer contour of the streamlined section.

[0031] The cover plate can have at least one fixing device, for example at least one retaining magnet, by means of which the cover plate can be fixed, for example, in a housing. The fixing device can facilitate simple, preferably tool-free replacement of the cover plate.

[0032] The housing and the baffle can be manufactured in one piece and / or form a single unit of homogeneous material. The baffle and / or the housing, in particular the at least one streamlined section of the baffle and / or the receiving portion of the housing, can be manufactured by an additive manufacturing method. Using an additive manufacturing method to manufacture relatively complex geometries of the baffle and / or the housing can reduce the manufacturing costs of the baffle and / or the housing.

[0033] The device can have a suction tube for each receiving hole of the orifice plate. Negative pressure can be applied via the suction tube to suck in the bristle bundles. In this case, the suction tube can lead into the receiving hole of the orifice plate. In this case, each receiving hole is preferably connected to a suction tube. Single or multiple suction tubes can be brought together in a common suction tube. This can be advantageous in order to bring together the bristle bundles when they are transported from the partial bundles into the orifice plate.

[0034] The device can be connected to a negative pressure source and / or have a negative pressure source. The negative pressure generated by the negative pressure source can act on the bristle bundle to be transported to the receiving hole of the orifice plate through the device to suck it into the receiving hole of the orifice plate.

[0035] The outlet end of the suction tube can be arranged or constructed on the retaining plate of the device.So, retaining plate is arranged on the upstream of the orifice plate in the transport direction of the bristle bundle.

[0036] Advantageously, the aerodynamic shape of the baffle plate comprises at least one streamlined section arranged downstream of the at least one baffle surface and / or the aerodynamic shape comprises at least one baffle surface adapted to the shape of the aperture area of ​​the orifice plate.

[0037] Advantageously, the perforated plate comprises at least two perforated areas with receiving holes, and / or each perforated area is provided with a stop surface.

[0038] Advantageously, a streamlined section is provided downstream of each baffle surface of the baffle.

[0039] Advantageously, at least one streamlined section of the baffle has a geometry which tapers in the flow direction and / or the baffle has a rounded transition on the surface which comes into contact with the fluid.

[0040] Advantageously, the aerodynamic shape of the baffle has a rounded transition between the at least one baffle surface and the streamlined section of the baffle and / or the aerodynamic shape of the baffle has a constriction between adjacent baffle surfaces and / or the aerodynamic shape of the baffle has a rounded contour between baffle surfaces of the baffle.

[0041] Advantageously, at least one streamlined section has a mirror-symmetrical longitudinal section and / or is rotationally symmetrical.

[0042] Advantageously, at least one streamlined section has a longitudinal section which is defined by at least two or more curved lines, which are connected to one another on the side of the baffle facing away from the baffle surface and / or extend in each case around a center point arranged outside the baffle.

[0043] Advantageously, the longitudinal section of at least one streamlined section has a rounded end facing away from the stop surface.

[0044] Advantageously, the baffle has at least one flow guiding structure.

[0045] Advantageously, the baffle has at least one flow channel as a flow guiding structure.

[0046] Advantageously, the at least one baffle surface has at least one inlet opening into the flow channel of the baffle.

[0047] Advantageously, at least one stop surface is perforated.

[0048] Advantageously, the housing has at least one flow channel oriented in the direction of the longitudinal axis of the baffle plate and / or at least one flow channel oriented transversely to the longitudinal axis of the baffle plate.

[0049] Advantageously, the baffle has at least one fastening device and / or the housing and the at least one baffle are manufactured in one piece and / or form a single unit made of a homogeneous material.

[0050] Advantageously, the baffle and / or the housing are manufactured by an additive manufacturing process.

[0051] Advantageously, the device has a suction tube for each receiving opening of the orifice plate and / or is connected to a vacuum source and / or has a vacuum source.

[0052] Advantageously, the outlet end of the suction tube is arranged or configured on the holding plate.

[0053] Advantageously, the bristle article is a toothbrush.

[0054] Advantageously, the baffle plate has a number of baffle surfaces that corresponds to the number of aperture zones of the aperture plate.

[0055] Advantageously, at least one streamlined section of the baffle has a geometry that tapers conically or spherically in the flow direction.

[0056] Advantageously, at least one flow channel is formed on the outer side of the streamlined section and / or at least one flow channel passes through the baffle.

[0057] Advantageously, at least one flow channel passes through the streamlined section of the baffle.

[0058] Advantageously, at least one stop surface is perforated by at least one flow opening.

[0059] Advantageously, at least one stop surface is perforated by drilling.

[0060] Advantageously, at least one stop surface is perforated by laser drilling.

[0061] Advantageously, the at least one fixing means is at least one retaining magnet.

[0062] Advantageously, at least one aerodynamic section and / or the receiving portion is produced by an additive manufacturing process.

[0063] Advantageously, the retaining plate is arranged upstream of the orifice plate.

[0064] In order to achieve the object, a brush product manufacturing machine is also proposed, which includes the device according to the utility model for conveying bristle bundles for manufacturing brush products.

[0065] The bristle product manufacturing machine according to the utility model has the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] The present invention will be described in detail below in conjunction with the embodiments, but the present invention is not limited to these embodiments. Other embodiments can be obtained by combining single or multiple features with each other and / or combining single or multiple features of the embodiments. As shown in the accompanying drawings:

[0067] Figure 1: A sectional side view of a brush product manufacturing machine having a device for transporting bristle bundles into receiving holes of an orifice plate by means of negative pressure, wherein the device is arranged downstream of a separating device for separating bristle bundles from a reserve of loose bristle filaments and has a plurality of suction tubes for transporting the bristle bundles into the receiving holes of the orifice plate, wherein a baffle is arranged downstream of the orifice plate, the baffle comprising a baffle surface, and a streamlined section of the baffle is arranged downstream of the baffle surface to promote a low-turbulence or turbulence-free flow to a negative pressure source of the device;

[0068] Figure 2-5 : Different views of a first embodiment of a baffle, wherein the baffle has two substantially circular baffle surfaces, which are assigned to two circular hole areas of a perforated plate of the device;

[0069] Figure 6 and 7 : Different perspective views of another embodiment of a baffle with two baffle surfaces, wherein a streamlined section is provided downstream of each baffle surface and the baffle has a plurality of flow guiding structures in the form of flow channels formed on the outside of the baffle;

[0070] Figure 8-11 : Different views of another embodiment of a baffle, wherein the two baffle surfaces of the baffle have four inlet openings through the flow guide structure, that is, through the flow channels of the baffle, wherein the flow channels are divided into a plurality of sub-channels in the direction of their outlet end, as shown in FIG. Fig.11 As shown in the cross-sectional diagram,

[0071] Figure 12-14 : Different views of another embodiment of a baffle with a total of two baffle surfaces, between which a constriction of the baffle is formed in order, on the one hand, to minimize the area of ​​the baffle and, on the other hand, to adapt the baffle surfaces of the baffle to the geometry of the hole area of ​​a corresponding perforated plate to which the baffle is provided,

[0072] Fig.15 : A perspective view of two baffles arranged in a common housing, each of which has two separate baffle surfaces, wherein the housing and the baffles consist of one part and are produced by an additive manufacturing method, for example by 3D printing,

[0073] Fig.16 : View of another housing in which two baffles are arranged, wherein the baffles have fixing devices in the form of retaining magnets, by means of which the baffles can be fixed in the housing and, if necessary, can be easily and quickly removed without the use of tools.

[0074] Fig.17 : Fig.16 The housing and two baffles are shown along Fig.16A side view cut along line XVII-XVII is shown, in which it can be seen that between the baffle and its receiving part in the shell, in addition to the intermediate flow channel in the flow direction behind the baffle, a side flow channel is also provided, which allows the negative pressure or a part of the fluid formed thereby to be guided through the side of the receiving part of the shell, so that the entire fluid does not have to make a 90° turn at the edge of the baffle after hitting the baffle. DETAILED DESCRIPTION

[0075] In the following description of different embodiments of the present invention, elements with the same function have the same reference numerals even if they have different forms or shapes.

[0076] Figure 1 At least some parts of a bristle product manufacturing machine, generally designated 100, are shown, which has a device, generally designated 1, for conveying bristle bundles 2 for manufacturing bristle products, in particular toothbrushes. The device 1 comprises at least one orifice plate 3 and at least one baffle 4. The orifice plate 3 comprises at least one hole area 5 consisting of receiving holes 6, into which the bristle bundles 2 can be transported by a fluid generated by negative pressure. The baffle 4 is arranged downstream of the orifice plate 3 in the transport direction of the bristle bundles 2 through the device 1. The transport direction of the bristle bundles 2 and the flow through the device 1 for transporting the bristle bundles 2 to the receiving holes 6 of the orifice plate 3 are controlled by the bristle bundles 2. Figure 1 As shown by arrow 19 in FIG.

[0077] The baffle plate 4 has at least one stop surface 7 for the bristle bundle 2. With the aid of the stop surface 7, the bristle bundle 2 sucked into the receiving hole 6 of the perforated plate 3 can be braked. Therefore, the stop surface 7 serves as a stop for the bristle bundle 2.

[0078] Figure 2-17 Different embodiments of baffles 4 are shown, which can replace Figure 1 The baffles 4 shown in section in the figure are used. The baffles 4 shown in all figures have an aerodynamic shape, which can advantageously influence the flow for transporting the bristle bundles 2 to the receiving holes 6 of the perforated plate 3.

[0079] Apart from Figure 12-14 In addition to the baffles 4 shown, each baffle 4 has a streamlined section 8 downstream of the corresponding baffle surface 7 for each of its baffle surfaces 7. Each baffle 4 shown in the figure also has a baffle surface 7, the shape of which is adapted to the shape of the hole area 5 of the orifice plate 3 assigned to the baffle 4. In the embodiment shown, the hole area 5 is rounded, preferably circular.

[0080] Equipped with Figure 2-17The perforated plates 3 of the baffle plate 4 shown each have at least two aperture fields 5 with receiving holes 6. The baffle plate 4 has a number of stop surfaces 7 that corresponds to the number of aperture fields 5 of the perforated plate 3. It is thus ensured that each aperture field 5 of the perforated plate 3 is assigned a stop surface 7 of the baffle plate 4.

[0081] Figure 1-11 15 to 17 show that a streamlined section 8 is provided downstream of each baffle surface 7 of the baffle plate 4 .

[0082] The streamlined section 8 has a geometry that tapers conically or spherically in the flow direction through the device 1. The baffle 4 has as few as possible, preferably no, sharp-edged transitions on its surface in contact with the fluid, which are oriented in particular transversely to the flow direction.

[0083] These figures also show that the aerodynamic shape of the baffle 4 comprises a rounded transition 9 between the baffle surface 7 and the streamlined section 8 of the baffle 4 .

[0084] Figure 2-17 The aerodynamic shape of the baffle 4 is shown to include a respective constriction 10 between the baffle surfaces 7 .

[0085] Figure 4 by Figure 2-5 The longitudinal section of the streamlined section 8 of the baffle 4 shown shows that the streamlined section 8 has a mirror-symmetrical longitudinal section and is also rotationally symmetrical. This also applies analogously to Figure 8-11 The baffle 4 shown and its Fig.11 Longitudinal section shown in .

[0086] These streamlined sections 8 each have a longitudinal section defined by a plurality of arcs 11, wherein two arcs 11 are connected to one another on the side of the baffle 4 facing away from the baffle surface 7. The arcs 11 here each extend around a center point arranged outside the respective baffle 4. At its end facing away from the baffle surface 7, the streamlined section 8 is rounded.

[0087] Figure 6 and 7 as well as Figure 8-11 The baffle 4 shown is provided with flow guiding structures 12 which promote a low turbulence or non-turbulence flow around the baffle 4 .

[0088] On baffle 4 Figure 6 and 7 In the exemplary embodiment shown, a flow guiding structure 12 is provided in the form of a flow channel 13 which is introduced on the outside into the baffle plate 4 .

[0089] Figure 8-11 The baffle plate 4 shown has a flow guide structure 12 in the form of a flow channel 13 which passes through the baffle plate 4 and the section 8 of the baffle plate 4. Fig.11It can be clearly seen in the cross-sectional view of the baffle 4. Figure 8-11 In the embodiment shown, a total of four inlet openings 14 are formed inside the baffle surface 7 into the flow channel 13 of the baffle plate 4. The flow channel 13 branches into a plurality of sub-channels 15 in its course toward the rear end of the baffle plate 4. Fig.11 The inlet openings 14 are located at positions on the respective stop surfaces 7 which are offset from the regions where the bristle bundles 2 strike the stop surfaces 7. Therefore, the inlet openings 14 are arranged offset relative to the receiving holes 6 of the orifice plate 3, so that the vertical projection of the receiving holes 6 on the stop surface 7 is positioned outside the inlet openings 14.

[0090] If necessary, it is possible that the baffle surface 7 of the baffle plate 4 with the flow openings is perforated. For example, a bore, preferably a laser bore, can be introduced into the baffle plate 4 as a flow opening. In particular, the baffle plate 4 Figure 12-14 The embodiment shown, which does not have a streamlined section 8 arranged downstream of the baffle surface 7 of the baffle plate 4, is suitable for such perforations. By means of such perforations, the fine mesh fabric which usually covers the baffle plates used in practice can be omitted.

[0091] Figure 1 and Figures 15 to 17 The device 1 is shown to further comprise a housing 16 with a receptacle 17 for at least one baffle plate 4. The receptacle 17 has a streamlined inner contour which is designed correspondingly to the at least one streamlined section 8.

[0092] The housing 16 together with the at least one baffle plate 4 forms at least one flow channel 27 oriented in the direction of the longitudinal axis of the baffle plate 4 or of the housing 16 and at least one flow channel 28 oriented transversely to the longitudinal axis of the baffle plate 4 or of the housing 16 .

[0093] exist Figure 2-14 as well as Figure 16-17 The cover plates 4 shown have a plurality of fixing means 18 in the form of retaining magnets, by means of which the cover plates 4 can be fixed in a receptacle 17 of a housing 16 of the device 1 without the use of tools.

[0094] In the housing 16 Fig.15 In the embodiment shown, the housing is manufactured in one piece together with the two baffles 4. Thus, the housing 16 and the baffles 4 form a single unit made of a homogeneous material, which can be manufactured, for example, by an additive manufacturing method.

[0095] exist Fig.16 and Fig.17 In the exemplary embodiment shown, the housing 16 has, inside the receptacle 17 for the baffle plate 4 , a plurality of flow guide surfaces 29 which define and form flow channels 27 , 28 between the baffle plate 4 and the inner contour of the receptacle 17 .

[0096] As with the other embodiments of the baffle 4, Fig.15 It also applies to the exemplary embodiment shown that the baffle 4 and the housing 16 , in particular at least one streamlined section 8 of the baffle 4 and / or the receptacle 17 of the housing 16 , can be produced by an additive manufacturing method.

[0097] according to Figure 1 The device 1 has a suction tube 20 for each receiving hole 6 of the corresponding orifice plate 3. Figure 1 The device 1 is equipped with or connected to a negative pressure source 21, whose negative pressure can be applied to the flow guiding part of the device 1, namely the housing 16, the baffle 4, the perforated plate 3, the suction tube 20 and finally the bristle bundle 2 arranged therein.

[0098] The outlet end 22 of the suction tube 20 is fixed on a holding plate 23 of the device 1. The holding plate 23 is arranged upstream of the orifice plate 3.

[0099] The functioning mode of the device 1 is as follows:

[0100] The bristle bundles 2 are separated from the reserve of loose bristle filaments 25 by the bundle separator 24 of the device 1 and moved to the device 1. Figure 1 The junction position is shown.

[0101] exist Figure 1 In the illustrated handover position, the bristle bundle 2, still arranged in the bundle separator 24, is located in front of the inlet opening of the suction tube 20 on the other holding plate 26 of the device 1, to which the suction tube 20 is fixed with its inlet end.

[0102] Now when the vacuum source 21 of the device 1 is activated, the prepared bristle bundle 2 is Figure 1 The bristle bundle 2 is sucked into the suction tube 20 by the arrow 19 indicating the transport direction of the device 1 and transported into the receiving hole 6 of the perforated plate 3 by the flow generated by the negative pressure. The bristle bundle 2 is braked by the baffle plate 4 arranged behind the perforated plate 3. Here, the bristle bundle 2 hits the baffle surface 7 of the perforated plate 3.

[0103] The aerodynamic shape of the baffle 4, which is characterized in particular by the streamlined geometry of the streamlined section 8, guides the fluid generated by the negative pressure source 21 so that turbulence is reduced or even completely avoided. This can facilitate the transport of the bristle bundles 2 into the receiving holes 6 of the perforated plate 3 and / or reliably discharge pollutants adhering to the bristle bundles 2, such as grinding dust.

[0104] Figure 1It is shown that the negative pressure source 21 is connected to the bristle bundle 2 at the intersection position through the receiving portion 17 of the housing 16, the flow channels 27, 28 jointly constructed by the baffle plate 4 and the inner contour of the receiving portion 17 of the housing 16, the receiving hole 6 of the orifice plate 3 and the suction tube 20, so that the bristle bundle 2 can be sucked into the receiving hole 6 of the orifice plate 3 through the suction tube 20. Here, the bristle bundle 2 is braked by the blocking surface 7 of the baffle plate 4.

[0105] The utility model relates to an improvement in the technical field of manufacturing bristle products 2. To this end, a device 1 for conveying bristle bundles 2 for manufacturing bristle products is proposed, the device comprising a baffle 4 with an aerodynamic shape.

[0106] Reference numerals list

[0107] 1 Device

[0108] 2 bristle bundles

[0109] 3-well plate

[0110] 4 Baffle

[0111] 5 3 Hole area

[0112] 6 3 receiving holes

[0113] 7 4 blocking surface

[0114] 8 4 streamlined section

[0115] 9 Transition section between 7 and 8

[0116] 10 Contraction

[0117] 11 Arc

[0118] 12 Flow guiding structure

[0119] 13 4 flow channels in or above

[0120] 14 Entrance opening

[0121] 15 subchannels

[0122] 16 Housing

[0123] 17 Receiving section in 16

[0124] 18 Fixtures

[0125] 19. Bristle bundles passing through the device / fluid transport direction

[0126] 20 Straw

[0127] 21 Negative pressure source

[0128] 22 20 exit

[0129] 23. Keep plate

[0130] 24 Beam Splitter

[0131] 25 loose bristle stock

[0132] 26 Another retaining plate

[0133] 27 17 Flow channel

[0134] 28 17 Flow channel

[0135] 29 Flow guiding surface

[0136] 100 Brush product manufacturing machine

Claims

1. A device for conveying bristle bundles for making bristle products, wherein: The device (1) comprises at least one perforated plate (3) having at least one hole area (5) consisting of receiving holes (6) and at least one baffle (4) arranged downstream of the perforated plate (3), wherein the bristle bundles (2) can be transported into the receiving holes by a flow generated by negative pressure, and the baffle has at least one baffle surface (7) as a stop for the bristle bundles (2) to be transported into the receiving holes (6) of the perforated plate, characterized in that the baffle (4) has an aerodynamic shape, and the device (1) comprises a housing (16) having a receiving portion (17) for the baffle (4), wherein the receiving portion (17) has a streamlined inner contour constructed corresponding to the aerodynamically shaped baffle (4).

2. The device according to claim 1, characterized in that The aerodynamic shape of the baffle (4) comprises at least one streamlined section (8) arranged downstream of the at least one baffle surface (7), and / or the aerodynamic shape comprises at least one baffle surface (7) adapted to the shape of the aperture area (5) of the orifice plate (3).

3. The device according to claim 1, characterized in that The perforated plate (3) comprises at least two hole areas (5) having receiving holes (6), and / or each hole area (5) is provided with a stop surface (7).

4. The device according to any one of claims 1 to 3, characterized in that A streamlined section (8) is arranged downstream of each baffle surface (7) of the baffle plate (4).

5. The device according to any one of claims 1 to 3, characterized in that At least one streamlined section (8) of the baffle plate (4) has a geometry that tapers in the flow direction and / or the baffle plate (4) has a rounded transition on the surface that comes into contact with the fluid.

6. The device according to claim 2, characterized in that The aerodynamic shape of the baffle (4) has a rounded transition portion (9) between at least one baffle surface (7) and the streamlined section (8) of the baffle (4), and / or the aerodynamic shape of the baffle (4) has a constriction (10) between adjacent baffle surfaces (7), and / or the aerodynamic shape of the baffle (4) has a rounded contour between the baffle surfaces (7) of the baffle (4).

7. The device according to claim 2, characterized in that At least one streamlined section (8) has a mirror-symmetrical longitudinal section and / or is rotationally symmetrical.

8. The device according to claim 2, characterized in that At least one streamlined section (8) has a longitudinal section defined by at least two or more arcs (11), wherein the two arcs (11) are connected to each other on the side of the baffle (4) facing away from the baffle surface (7) and / or extend around a center point arranged outside the baffle (4).

9. The device according to claim 2, characterized in that The longitudinal section of at least one streamlined section (8) has a rounded end facing away from the stop surface (7).

10. The device according to claim 2, characterized in that The baffle (4) has at least one flow guiding structure (12).

11. The device according to claim 2, characterized in that The baffle plate (4) has at least one flow channel (13) as a flow guiding structure (12).

12. The device according to any one of claims 1 to 3, characterized in that The at least one baffle surface (7) has at least one inlet opening (14) into the flow channel (13) of the baffle plate (4).

13. The device according to any one of claims 1 to 3, characterized in that At least one stop surface (7) is perforated.

14. The device according to any one of claims 1 to 3, characterized in that The housing (16) has at least one flow channel (13) oriented in the direction of the longitudinal axis of the baffle (4) and / or at least one flow channel (13) oriented transversely to the longitudinal axis of the baffle (4).

15. The device according to any one of claims 1 to 3, characterized in that The baffle (4) has at least one fixing device (18), and / or the housing (16) and the at least one baffle (4) are manufactured in one piece and / or form a single unit with a homogeneous material.

16. The device according to any one of claims 1 to 3, characterized in that The baffle (4) and / or the housing (16) are manufactured by an additive manufacturing process.

17. The device according to any one of claims 1 to 3, characterized in that The device (1) has a suction tube (20) for each receiving hole (6) of the orifice plate (3), and / or is connected to a negative pressure source (21) and / or has a negative pressure source (21).

18. The device according to claim 17, characterized in that The outlet end (22) of the suction tube (20) is arranged or constructed on a holding plate (23).

19. The device according to claim 1, characterized in that The bristle product is a toothbrush.

20. The device according to claim 3, characterized in that The baffle plate (4) has baffle surfaces (7) whose number matches the number of hole areas (5) of the orifice plate (3).

21. The device according to claim 5, characterized in that At least one streamlined section (8) of the baffle (4) has a geometry that tapers conically or spherically in the flow direction.

22. The device according to claim 11, characterized in that At least one flow channel (13) is formed on the outer side of the streamlined section (8) and / or at least one flow channel (13) passes through the baffle plate (4).

23. The device according to claim 11, characterized in that At least one flow channel (13) passes through the streamlined section (8) of the baffle (4).

24. The device according to claim 13, characterized in that At least one baffle surface (7) is perforated by at least one flow opening.

25. The device according to claim 13, characterized in that At least one stop surface (7) is perforated by drilling.

26. The device according to claim 13, characterized in that At least one stop surface (7) is perforated by laser drilling.

27. The device according to claim 15, characterized in that The at least one fixing device (18) is at least one retaining magnet.

28. The device according to claim 16, characterized in that At least one streamlined section (8) and / or the receiving portion (17) is manufactured by an additive manufacturing process.

29. The device according to claim 18, characterized in that The retaining plate (23) is arranged upstream of the orifice plate (3).

30. A brush product manufacturing machine, characterized in that: The bristle product manufacturing machine comprises a device (1) according to any one of claims 1 to 29.

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