An apparatus (1) for forming bristle bundles (2) is provided. The apparatus (1) includes at least one bundle pocket (3), intended to receive a bristle bundle (2) to be formed. The bundle pocket (3) has at least one piercing (6) in the side. A displacement device (7) on the apparatus (1) can be introduced into the bundle pocket (3) through this piercing (6) to create a clearance (29) inside a bristle bundle (2) to be formed. The bundle pocket (3) and the bristle bundle (2) located therein are heated by the heating device (4) in the apparatus (1) to fix the shape of the bristle bundle (2) defined by the bundle pocket (3) and the displacement device (7).

An apparatus (1) for forming bristle bundles (2) is provided. The apparatus (1) includes at least one bundle pocket (3), intended to receive a bristle bundle (2) to be formed. The bundle pocket (3) has at least one piercing (6) in the side. A displacement device (7) on the apparatus (1) can be introduced into the bundle pocket (3) through this piercing (6) to create a clearance (29) inside a bristle bundle (2) to be formed. The bundle pocket (3) and the bristle bundle (2) located therein are heated by the heating device (4) in the apparatus (1) to fix the shape of the bristle bundle (2) defined by the bundle pocket (3) and the displacement device (7).

A filament-transportation device has a plurality of tube elements for transporting filaments from an intake area to an outtake area via an airstream generated by underpressure or overpressure. Each tube element has an end orifice. A baffle-plate unit has a baffle plate having a through-hole, a top surface opposite to the end orifices to stop the transport of the filaments, and a bottom surface opposite to the top surface. The baffle plate includes baffle plate elements associated with the end orifices. Each of the baffle-plate elements has a top surface forming part of the top surface of the baffle plate, a bottom surface forming part of the bottom surface of the baffle plate, and a side surface extending between the top and bottom surface. There is a plurality of bridge elements, each having a top surface forming part of the top surface of the baffle plate, a bottom surface forming part of the bottom surface of the baffle plate, and a side surface extending from the top surface of the bridge element to the bottom surface of the bridge element. The through-hole is defined either by the side surfaces of at least two baffle plate elements or by the side surfaces of at least one baffle plate element and of a side surface of at least one bridge element not facing an end orifice of a tube element, which bridge element connects two spaced apart baffle plate elements from the plurality of baffle plate elements.

A method for wire bristle tuft attachment. The method includes clamping a brush head of a grill brush using a fixture, arranging a plurality of bristles to form a bristle grouping using a terminal, inserting the plurality of bristles in a recess in the brush head, and forming an irregular bend in the terminal by pressing the terminal into the recess by a press machine.

A brush head (10) and a method (200) for manufacturing a brush head. The method (200) includes stamping (220) a plurality of openings (62) into a strip or roll of backing material (60). A bristle tuft (21) is inserted into each of the openings in the backing material. A proximal end (23) of each bristle tuft is bonded to a proximal side (63) of the backing material to create a merged proximal end head portion (26). Excess portions of the backing material are removed to form a plurality of carrier elements (24) about the openings from the backing material. The carrier elements form a plurality of merged tuft assemblies (20). A platen (42) of a neck (40) is positioned in relation to the merged tuft assemblies. A matrix material (30) is injected around the platen and the merged tuft assemblies to at least partially encompass the platen and the carrier elements of the merged tuft assemblies.

A brush head (10) and a method (200) for manufacturing a brush head. The method (200) includes stamping (220) a plurality of openings (62) into a strip or roll of backing material (60). A bristle tuft (21) is inserted into each of the openings in the backing material. A proximal end (23) of each bristle tuft is bonded to a proximal side (63) of the backing material to create a merged proximal end head portion (26). Excess portions of the backing material are removed to form a plurality of carrier elements (24) about the openings from the backing material. The carrier elements form a plurality of merged tuft assemblies (20). A platen (42) of a neck (40) is positioned in relation to the merged tuft assemblies. A matrix material (30) is injected around the platen and the merged tuft assemblies to at least partially encompass the platen and the carrier elements of the merged tuft assemblies.

A method for producing a toothbrush head, comprising: providing at least two filament containers, each comprising a supply of loose filaments that differ in at least one of their property selected from material, diameter, cross-section, shape, and presence of additives and/or coating; picking bristle tufts from the containers and arranging them in a perforation plate comprising holes shaped and distributed according to a desired bristle field of the brush head to be produced; arranging an energy source and the ends of the tufts in a contactless arrangement, wherein the ends of the tufts to be fused are at different distances from the energy source, and wherein the distance is adjusted according to the at least one property; applying energy to the ends of the tufts until fuse balls are formed thereon; transferring the tufts to a molding position, wherein a distance between at least one fuse ball and the front surface is different from the distance between the bottom edge of said fuse ball and the front surface in the fusing position; over-molding the fuse balls with molten plastic material thereby forming a cleaning element carrier; transferring the cleaning element carrier to a brush head mold and injecting molten plastic material into the brush head mold forming a toothbrush head, wherein the cleaning element carrier is over-molded thereby and the tufts are still located in the perforation plate.

To improve the brush-making field, a tuft-picking device (4) is provided, which includes the tuft picker (8) that is movable in relation to the material box (2) of the brush-making machine (1) and, on its front side (11), which in the operating position faces the bristle supply (3) held in the material box (2), includes at least one tuft-picking notch (12). The tuft-picking notch (12) has two opposing knife edges (14, 15), which delimit the notch opening (13) of the tuft-picking notch (12) and are oriented transverse to the direction of movement of the tuft picker (8). Another part of the tuft-picking device (4) is the counter piece (9), which is provided with the separating edge (17) facing the tuft picker (8). In order to allow bristle filaments (16) to be removed from the bristle supply (4) as gently as possible, at least one of the two knife edges (14, 15) and/or the separating edge (17) is rounded.

To improve the brush-making field, a tuft-picking device (4) is provided, which includes the tuft picker (8) that is movable in relation to the material box (2) of the brush-making machine (1) and, on its front side (11), which in the operating position faces the bristle supply (3) held in the material box (2), includes at least one tuft-picking notch (12). The tuft-picking notch (12) has two opposing knife edges (14, 15), which delimit the notch opening (13) of the tuft-picking notch (12) and are oriented transverse to the direction of movement of the tuft picker (8). Another part of the tuft-picking device (4) is the counter piece (9), which is provided with the separating edge (17) facing the tuft picker (8). In order to allow bristle filaments (16) to be removed from the bristle supply (4) as gently as possible, at least one of the two knife edges (14, 15) and/or the separating edge (17) is rounded.

An apparatus (1) for forming bristle bundles (2) is inter alia proposed as an improvement in the technical field of manufacturing and designing brushes. The apparatus (1) includes at least one bundle pocket (3) which is specified for receiving bristle bundles (2) to be formed. The bundle pocket (3) has a common bundle receptacle portion (50) for unifying at least two bristle bundles (2). The bundle pocket (3) and the bristle bundles (2) situated therein are heated by the heating apparatus (4) of the apparatus (1) so as to set the shaping of the bristle bundles (2) that is predefined by the bundle pocket (3) and the displacement means (7).