Classifications

• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D1/00—Bristles; Selection of materials for bristles
  • A46D1/08—Preparing uniform tufts of bristles
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D3/00—Preparing, i.e. Manufacturing brush bodies
  • A46D3/04—Machines for inserting or fixing bristles in bodies
  • A46D3/042—Machines for inserting or fixing bristles in bodies for fixing bristles using an anchor or staple
• • 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
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D3/00—Preparing, i.e. Manufacturing brush bodies
  • A46D3/08—Parts of brush-making machines
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46D—MANUFACTURE OF BRUSHES
  • A46D3/00—Preparing, i.e. Manufacturing brush bodies
  • A46D3/08—Parts of brush-making machines
  • A46D3/082—Magazines for bristles; Feeding bristles to magazines; Knot picking

Definitions

• a bundle picking apparatus a brush making machine, a method of manufacturing a bundle picker, and a method of manufacturing a counterpart of a bundle picking apparatus
• the invention relates to bundle picking devices for brush making machines.
• Each of the bundle removal devices comprises a bundle picker movable relative to a material box and a counterpart fixed relative to the movable bundle pickup, wherein the bundle pickup has at least one bundle removal notch on its front side facing the bristle stock in the position of use and for removing a bunch of bristles from the bristle stock and for dispensing a picked bristle bundle to the brush making machine with the at least one bundle take-off notch past the bristle stock and the counterpart at least to a dispensing position, the bundle take-off notch defining a notch opening of the bundle take-off notch oriented opposite the direction of travel of the bundle picker the counterpart have a dividing edge facing the bundle taker.
• the invention also relates to a brush-making machine with a material box for storing a bristle supply and with a bundle removal device having at least one bundle picker for removing bristle bundles from the material box.
• the invention also relates to methods of Development of a bundle and a method for producing a counterpart of a bundle picking device.
• Such bundle picking devices, brush manufacturing machines, methods for producing a bundle picker and methods for producing a counterpart of a bundle picking device are known from the prior art in various embodiments.
• a material box which can also generally be referred to as a storage container for bristles, filaments or bristle filaments cut to a certain length
• individual bristles are filled with a so-called bristle Bundle take-off notch taken when passing a bundle customer the material box.
• the bundle picker notch is closed by means of a so-called counterpart, so that a bundle of defined number of individual bristle filaments or bristles arranged in the bundle removal notch is securely arranged in the bundle withdrawal notch.
• This bristle bundle is then conveyed to a next step using the bundle picker.
• the bristle bundle is fed to a stuffing tool of a brush-making machine and anchored together with a wire anchor in a brush body with the aid of this stuffing tool.
• the bristle bundle is supplied by means of the bundle pickup a tool that defines the bundle of bristles defined in a cassette or other container.
• arranged in the bundle collection notch Remove bundles of bristles from the bundle removal notch with the aid of a suction device and feed them to a cassette or other container. Such an approach is often used in connection with the so-called anchor release of brushes.
• the bristle bundles consist of individual, round bristle filaments, which are cut off on both sides.
• the bundles are removed from the material box of the brush making machine with the aid of a bundle picker and a bundle picker counterpart, folded in the middle with a stuffing tool, and stuffed with an anchor wire into a brush body or toothbrush body.
• the ends of the bundles are cut to a specific length or profile with a milling cutter.
• the ends of the bristle bundles over several grinding operations rounded off.
• Distortion in this context means that the bundle of bristles or individual bristle filaments in the bristle bundle are displaced on one side and thus can stand upwards after the stuffing operation, for example from the bristle field of the brush produced. This is remedied in previously known from the prior art brush manufacturing machines by subsequent milling and grinding of the bristle field. If more demanding bristle material is to be used in processing, for example bristle filaments whose ends have been pretreated and which, after being separated from the material box, no longer permit their filament ends to be processed, higher demands can be placed on the quality and precision of the removal and feeding of the bristle bundles by means of the bundle pickup exist.
• the bundle pick-up is often passed between two reversal points in a stroke and return stroke with the bundle removal notch on the material box.
• the bundle removal notch is empty and can already be filled with bristle filaments after passing the counterpart on / in the material box.
• the bundle removal notch hits again on the counterpart and happens here a so-called dividing edge, which is formed on the counterpart and facing the bundle taker.
• the closing of the Bundleabnähme- score begins by the Bundelab Spotify Spotifykerbe slides past the dividing edge of the counterpart and so so covered by a bundle takers facing the counterpart of the counterpart and thus closed.
• the bristle filaments in the bundle picking notch are finally separated from those in the material box. Some bristle filaments are forced back into the material box along a counterpart tip on which the dividing edge of the counterpart is formed. Some bristle filaments are retained in the bundle collection notch.
• damaged bristle filaments may be processed or, at a later time, the bristle filaments forced back into the material box may be removed from the material box by means of the bundle removal notch and then fed to subsequent processing steps.
• damaged bristle filaments can cause subsequent errors that may even go so far that they can lead to reject errors of finished brushes.
• Some of the damaged bristle filaments may have a kink and then look laterally out of the bristle bundle. Some filaments are warped and look up out of the bristle field of the produced brush. In the case of toothbrushes in particular, damaged bristle filaments can cause them to fail during brushing and, if necessary, even be swallowed.
• the object of the invention is therefore to provide a Bundelabdgingvor- direction, a brush manufacturing machine and methods for producing bundle pickups and counterparts of Bundelabdgingvorraumen of the type defined, with which reduce the previously outlined disadvantages of the known from the prior art Bundelab tinyvoriquess- and brush manufacturing machines or even avoid it.
• the knife edges of the dividing edge approach to a very small distance .
• the bristle filaments can be removed more carefully.
• the rounding of the respective edge can cause the affected bristle filament is either relatively gently pushed into the bundle removal notch or just as carefully - transported back to the material box.
• the at least one knife edge and / or the dividing edge are each rounded transversely to their longitudinal extent with a radius.
• the radius or the radii of the at least one knife edge and / or the dividing edge can be between 0.005 millimeter and 0.03 millimeter, particularly preferably between 0.005 millimeter and 0.02 millimeter.
• the quality of the interacting surfaces can also be important in the gentle removal of bundles of bristles from the material box, it can be advantageous if a surface of the at least one knife edge and / or a surface of the partition edge is smoothed.
• the aforementioned surfaces may have an average roughness value or surface roughness value of Ra ⁇ 0.1, or even Ra ⁇ 0.05, and more preferably Ra ⁇ 0.02. In this way, particularly smooth edge surfaces are produced, at which the bristle filaments can slide particularly easily in the direction of the bundle removal notch or else back into the material box without being damaged, warped or bent.
• a bundle picking device of the aforementioned type with the means and features of claim 5 is proposed. Accordingly, it is provided in particular that a length of at least one knife edge of the bundle removal device is smaller than a height of the bundle removal notch measured transversely to the direction of movement of the bundle pickup. In this way, a length, on which the bristle filaments between the knife edge and the dividing edge can be clamped and damaged on the counterpart, can be reduced. In this case, the length of the at least one knife edge may be shorter than a length of bristle filaments to be removed with the bundle removal device.
• a knife edge bevel and / or a knife edge can be provided between a flat side of the bundle stripper oriented transversely to the longitudinal axis of the bundle acceptance notch and the at least one knife edge Be formed bow. By this a length of the knife edge can be limited.
• each at least one knife edge chamfer and / or at least one knife edge arc is / are formed. All this leads to the fact that the at least one knife edge is arranged between at least two knife edge chamfers and / or knife edge sheets, whereby a length of ge the at least one knife edge may be smaller than a measured transversely to the direction of movement of the bundle pickup height of Bundelabnähmekerbe. Also in this way a length of the knife edge can be reduced and be smaller than a height of the bundle decrease notch measured transversely to the direction of movement of the bundle pickup.
• the knife edge can here be arranged symmetrically between the at least two knife edge chamfers or knife edge sheets.
• the bundle removal notch may have at least adjacent to one of the two knife edges, in particular to the rear edge of the knife in the direction of transport of the bundles of bundles, a flattened inlet bevel into the bundle removal notch. It can be provided that the inlet slope, starting from the knife edge increases, so that the inlet slope, starting from the knife edge in its course has an increasing material thickness and so adjacent to the knife edge has a smaller thickness than in a side facing away from the knife edge portion of the inlet slope.
• At least one notched edge of the bundle removal notch oriented transversely or at right angles to a longitudinal center axis of the bundle removal notch is rounded.
• the at least one notched edge can be rounded off with a notched edge radius, preferably with a notched edge radius having a length of between 0.005 mm and 0.03 mm.
• the length of the dividing edge may also be shorter than a length of bristle filaments that can be removed with the Bundelabnähme- device the bristle supply. It should be noted that this feature can also be combined with the features described above in relation to the bundle take-off devices according to the invention.
• the counterpart has at least one dividing edge chamfer oriented transversely to the longitudinal extent of the dividing edge and / or at least one dividing edge arc oriented transversely to the longitudinal extent of the dividing edge, through which the teeth - Lungskante is limited in their length.
• the counterpart it is also possible for the counterpart to have at least two divisional edge chamfers oriented transversely to the longitudinal extension of the divisional edge and / or at least two divisional edge arcs oriented transversely to the longitudinal extension of the divisional edge, between which the divisional edge is arranged. This is such that a length of the dividing edge is smaller than a height of the counterpart measured transversely to the direction of movement of the bundle taker.
• the dividing edge may be connected to an upper side and / or to an underside of the counterpart via the at least one dividing edge chamfer and / or the at least one dividing edge arc. In both cases, a length of the dividing edge may thereby be smaller than a height of the counterpart measured transversely to the direction of movement of the bundle remover. These measures also serve - analogous to the attachment of knife edge chamfers and / or radii and / or knife edge arcs on the bundle pickup in the region of the at least one knife edge - to reduce the length of the dividing edge.
• At least one of the knife edges and / or the dividing edge are oriented at right angles to a direction of movement of the bundle picker and / or parallel to an orientation of the bristle bundles to be positioned in the bundle removal notch.
• Both the at least one knife edge and the dividing edge can / but can also be formed on a portion of a circular arc-shaped edge or a total circular arc.
• At least one edge oriented transversely or at right angles to the dividing edge can be rounded.
• edges which may come into contact with bristle filaments, such a rounding off may be expedient.
• all edges of the counterpart are so rounded.
• the rounded edges may be rounded off with a radius, preferably with a radius of a length of 0.005 millimeters to 0.03 millimeters.
• the object is also achieved by a bundle removal device having the means and features of claim 12.
• the bundle pickup has an end face which is oriented transversely or even at right angles to the front side of the bundle picker and which comprises an end face bounded by at least one end bevel and / or one end radius.
• the at least one Stirnfase be aligned at an angle of 20 ° to 80 ° to the end face of the bundle pickup.
• a chamfer width of the Stirnfase can be between 0.05 millimeters and 0.4 millimeters.
• edges of the chamfers of the at least one end bevel are radiused with a length of between 0.005 mm and 0.03 mm.
• the object is also achieved by a bundle removal device having the means and features of claim 14.
• a bristle supply facing box side of the counterpart and / or a bundle takers facing the counterpart side has at least one Sofase and / or at least one side radius / through which a respective side front surface of the box side and / or is limited.
• the at least one Sofase on the box side at an angle of 20 ° to 80 ° to one of the Sofase adjacent side front surface of the box side is aligned. It is also possible that the at least one Sofase on the pickup side of the counterpart at an angle of 20 ° is aligned to 80 ° to one of the Sofase adjacent side front surface of the customer side.
• the respective sofase have a chamfer width between 0.05 millimeters and 0.4 millimeters.
• Chamfer edges of the side chamfer can be rounded with a radius of between 0.005 mm and 0.03 mm.
• material boxes with two or three or more individual bristle magazines are used, from which the bundles of bristles with the help of the bundle and the at least one bundle decrease notch can be removed.
• this is done by gradually bringing the individual bristle magazines of the material box into a removal position.
• the material box can be pivotable about a pivot axis.
• a side of the material box facing the counterpart and the bundle pickup has a correspondingly curved contour, in particular curved along a circular arc, with which it can be pivoted past the counterpart .
• a box side of the counterpart facing the bristle supply is subdivided at least in a first section and a second section.
• the first section may be bent along its longitudinal extension by a first radius.
• the second portion may be bent along its longitudinal extent by a second radius. It is possible that the second radius is greater than the first radius.
• an inventive Bundle removal device may be one, for example, the previously mentioned, the bristle supply facing box side of the counterpart at least in a first portion, at one free end of the dividing edge (17) is arranged, and be divided into a second section.
• the first section can be bent along its longitudinal extension by a first radius, during which the second section has a straight, that is unbent path.
• the first radius is bent in the opposite direction to the second radius - that is, for example, bent away from the material box and the bristle supply .
• the dividing edge may then be arranged at a free end of the first portion of the counterpart.
• the dividing edge is formed from two radii which approach each other tangentially, namely a radius facing the material box and a radius facing the bundle taker. If the dividing edge were rounded off here, a relatively large loss of material would be accompanied by the counterpart's rounding off. This means that the dividing edge on a conventionally produced counterpart by the rounding comparatively far back, resulting in a complex adaptation of the geometry of the entire bundle removal device would result.
• the radius of curvature along which the first portion of the box side is bent along the radius of the second portion, as desired, is a desired rounding of the split edge with less material loss possible.
• the dividing edge is formed by the two radii approaching on the one hand of the first section of the box side of the counterpart and on the other side of the counterpart of the counterpart, wherein the radii do not have a tangentially approaching course, but a rather intersecting course, which leads to the more favorable geometrical Conditions for a low-loss material rounding of the dividing edge leads.
• at least one surface of the bundle pickup can be smoothed.
• the following surfaces may be smoothed: a surface of at least one or the knife edge radius, one or the knife edge bevel, a knife edge arc, a notched edge radius, an end face, a face bevel, a face radius, and / or a fascia edge of at least one chamfer.
• an inner surface of the bundle removal notch can also be smoothed.
• the respective smoothed surface may have an average roughness value or surface roughness value Ra of less than 0.1, less than 0.05, and particularly preferably less than 0.02. This too can result in a gentler processing of boron filaments.
• the counterpart can also have at least one smoothed surface.
• surfaces of the counterpart may be smoothed: a surface of a dividing edge radius, a dividing edge bevel, a dividing edge arc, a side face of a box side, a side face of a receiving side of the counterpart, a sofase, a side radius and / or at least one lug edge of at least one of the bevels on the gene fragment.
• An average roughness value or surface roughness value Ra of the respectively smoothed surface may be less than 0.1, preferably less than 0.05, particularly preferably less than 0.02.
• the counterpart can be provided on one side or on both sides with an inlet chamfer in a tool, which is arranged adjacently to a delivery position of the bristle filaments to a downstream processing step, in particular to a stuffing tool.
• the bundle removal notch of the bundle picker may be an adjustable bundle picking notch.
• the bundle removal device can also have an adjustment device with which a notch depth of the bundle removal notch can be changed if necessary. If necessary, a notch geometry of the bundle removal notch can also be changed with this adjustment device and / or a bundle bundle positioned in the bundle removal can be ejected from the bundle acceptance notch.
• the at least one bundle removal notch and / or the at least one knife edge and / or the dividing edge and / or at least one bevel can be produced particularly efficiently and with satisfactory quality by HSC milling on the bundle collector and / or on the bundle removal kerf and / or on the counterpart and / or HSC loops.
• Smoothed surfaces of the bundle taker and / or the counterpart can be made by polishing.
• at least one at least one knife edge radius of the at least one knife edge, a dividing edge radius of the dividing edge and / or at least one radius at a chamfer edge of at least one chamfer on the bundle taker and / or on the counterpart can be produced by polishing and / or works.
• Vibratory grinding, flow grinding, plasma polishing, drag grinding, tow finishing and / or hand polishing and / or electrochemical deburring are used as possible methods for this purpose. It is possible to produce the surfaces listed above or even radii and arcs with only one of the aforementioned methods or to produce with several consecutively performed procedures.
• the bundle pickup can be a circular-arc divider pivotable or rotatable about a pivot axis. It should be mentioned at this point that circular arc dividers can also be referred to as circular arc collectors.
• the bundle removal device in another variant, provision can also be made for the bundle removal is a pivotable about a pivot axis or rotatable circular Bündelab passingusion.
• a plurality of bundle picking notches with possibly different kerf geometry it is also possible for a plurality of bundle picking notches with possibly different kerf geometry to be arranged on the bundle pickup, independently of how it is concretely configured, in order to be able to remove a plurality of bristle bundles from the material box in one stroke.
• the knife edges and / or the dividing edges have a length between 0.4 millimeters and 1.4 millimeters and / or at least a straight, for example, at right angles to the direction of movement of the bundle, oriented portion with a length between 0.01 millimeters and have 0.8 millimeters.
• a brush-making machine of the type mentioned above which comprises the means and features of the independent claim directed to the brush-making machine.
• the problem is solved in a brush manufacturing machine of the type mentioned above in that the bundle removal device is one of the claims directed to the bundle removal device claims.
• the object is also achieved by a method for producing a bundle pick-up, in particular a bundle pick-a A bundle picking device according to any one of claims 1 to 22, comprising the means and features of claim 24.
• a method for producing a bundle pick-off, in particular a bundle pick-a Bundelab Spotify Spotifyvor- device according to one of claims 1 to 22 is therefore provided for solving the above-mentioned problem that at least one bundle decrease notch and / or at least one knife edge chamfer and / or a knife edge Arc and / or a Stirnfase and / or a radius of the spur and / or an upper side and / or underside Um installingfase on the bundle purchaser and / or a notched edge radius of a bundle removal notch and / or edge of at least one chamfer on the bundle purchaser and / or a Inner surface of the bundle removal notch is generated by HSC milling and / or HSC grinding / are.
• the object is also achieved by a method according to claim 25 for the production of a bundle pickup, in particular a bundle pickup of a bundle picking device according to one of claims 1 to 22, in which at least one smoothed surface of the bundle pickup is produced and / or reworked by grinding and / or polishing /become. If appropriate, this process can be combined with the previously defined process steps.
• a surface of at least one knife edge radius, a knife edge chamfer, a knife edge arc, a notched edge radius, an end face, a face chamfer, a face radius, a chamfer edge of at least one chamfer and / or an inner surface of the bundle take-off notch can be loosely and / or or polishing and / or post-processed.
• the Producing or finishing at least one surface and / or the end face of the bundle picker and / or at least one radius on the bundle pickup in particular on a knife edge of at least one bundle removal notch of the bundle picker and / or at least one bevel on the bundle picker, in particular on a knife edge of a bundle acceptance notch of the bundle pickup and / or an inner surface of at least one bundle removal notch by vibratory grinding, flow grinding, plasma polishing, drag grinding, drag finishing and / or by hand polishing and / or by electrochemical deburring.
• wet and / or dry granules porcelain grinding bodies, plastic grinding bodies, ceramic grinding bodies, Inox chips, copper pencils, in particular those having a diameter of approximately 0.2 millimeters and a length of approximately 1 millimeter, may be used as grinding or polishing agents , Zirconia beads, microfinish abrasives, plastic polishing bodies, wet grinding paste, polishing paste, walnut granules, corn granules and / or dry grinding granules.
• the above object is also achieved by a method of manufacturing a counterpart mentioned at the outset which has the means and features of the independent claim directed to the method for producing a counterpart of a bundle picking device.
• a method for producing a counterpart of a bundle removal device in particular a bundle removal device according to one of claims 1 to 22 is proposed, in which at least one smoothed surface of the counterpart is produced by grinding and / or polishing and / or reworked to solve the above object /become.
• the following surfaces can be prepared and / or post-processed:
• a dividing edge radius a dividing edge chamfer, a dividing edge arc, a side face, a side chamfer, a side radius, and / or at least one chamfer edge of a chamfer on the counterpart.
• the manufacture and / or post-processing can be done by vibratory finishing, flow grinding, plasma polishing, drag grinding, drag finishing and / or hand polishing and / or electrochemical deburring.
• wet and / or dry granules porcelain grinding bodies, plastic grinding bodies, ceramic grinding bodies, inox chips, copper sticks, in particular those having a diameter of approximately 0.2 millimeters and a length of approximately 1 millimeter, stainless steel grinding bodies, Zirkoniakugeln, Microfinishschleif redesign, Kunststoffpolier emotions, wet grinding paste, polishing paste, walnut granules, corn granules and / or dry grinding granules are used.
• Both the counterpart and the bundle picker of the bundle picking devices described above may be made of hardenable steel, for example HS steel.
• the steel can be produced as a blank with an allowance on or at the end faces in the soft state. Then individual contours, such as holes and mounting and alignment edges can be made. Subsequently, the blank of the bundle taker and / or the counterpart can be aligned hardened and ground to measure at its respective end face. This is then usually the semi-finished product. Subsequently, the process steps described in the claims and described above for producing or finishing the bundle pickup and / or the counterpart can be carried out.
• FIG. 1 shows a perspective view of a brush manufacturing machine according to the invention with a bundle removal device, which has a bundle pick-up in the form of a pivotable about a pivot axis
• Fig. 2 is a perspective view of a first variant of a bundle removal device according to the invention, wherein it can be seen that a knife edge of the
• Length is reduced and the bundle takers also have a top side and a bottom side pickup having,
• FIG. 2 a shows an enlarged view of the detail marked with the circle in FIG. 2, wherein it can be seen that a dividing edge of the counterpart is reduced in length corresponding to the length of the knife edge by attachment of a respective top and bottom side chamfer
• FIG. 3 is another perspective view of another
• Embodiment of the bundle removal device according to the invention wherein the knife edge of the bundle removal notch is delimited by two knife edge arcs or circular arcs adjacent to the knife edge,
• FIG. 3a shows the detail marked with a circle in FIG. 3 in an enlarged view, in which a dividing edge of a counterpart of this bundle removal device is designed corresponding to the knife edge of the bundle pickup, wherein it is to be recognized that the knife edge and the dividing edge are straight, perpendicular to the direction of movement have the bundled customer oriented course,
• FIG. 4 shows a further perspective view of a third embodiment according to the invention of a bundle removal device
• FIG. 4a shows the detail marked with the circle in FIG. 4 in an enlarged view, wherein it can be seen that in each case a knife edge arc is formed on an upper side and on a lower side connects, which lead into the knife edge, a plan view of a conventional bundle pickup in adjacent position to a tapered counterpart on which a sharp dividing edge is formed
• the marked in Figure 5 with the circle detail in an enlarged view, with a arranged between a sharp knife edge and a sharp dividing edge bristle filament to recognize are a plan view of a bundle according to the invention in adjacent position to a counterpart with a rounded dividing edge
• the marked in Figure 6 with the circle detail in an enlarged view here being arranged between a rounded knife edge of the bundle pickup and a rounded dividing edge of the counterpart bristle filament recognize
• FIG. 7 is a plan view of a conventional counterpart with a sharp, so sharply tapered dividing edge on a tip of the counterpart
• FIG. 8 shows a plan view of the counterpart shown in FIG. 7 after a rounding of the dividing edge, it being clearly recognizable on the basis of an imaged measuring tip that a tip of the counterpart is greatly shortened due to the rounding of the dividing edge
• 9 shows a plan view of a counterpart according to the invention, wherein it can be seen that a box side of the counterpart consists of a first section with a first radius and of a second section with a second radius bent opposite to the first radius
• FIG. 10 shows a plan view of the counterpart shown in FIG. 9 after rounding off the dividing edge, whereby it is made clear with the aid of the measuring tip shown there that a tip of the counterpart on which the dividing edge is arranged, due to the rounding off due to the two different radii of the two sections of the box side of the counterpart is shortened only comparatively small,
• FIG. 11 is a plan view of a bundle picker in the form of a circular arc divider, the bundle picker comprising a bundle picking notch with a smoothed surface having an average surface roughness Ra of about 0.4.
• Circular arcs are not edited
• FIG. 14a shows the detail marked with the circle in FIG. 14 in an enlarged view, in which case the end face on the front side of the circular arc is provided with edge-side chamfers whose chamfer edges are rounded off with a radius of 0.005 millimeters to 0.03 millimeters, where a surface roughness of the end face and also the chamfer surfaces and also the radii have an average surface roughness value of Ra ⁇ 0.05, a plan view of a counterpart according to the invention, a first variant of the counterpart shown in Figure 15 in a cut along the section line shown in Figure 15 front view
• FIG. 18 shows a front view of a third variant of a counterpart according to the invention, cut along the section line shown in FIG. 15, FIG.
• FIG. 17a shows the detail marked with the circle in FIG. 17 in an enlarged view, wherein it can be seen that both a box side and a pickup side of the counterpart are each shown in an enlarged view, wherein it can be seen that none of the edges of the counterpart are machined are provided with (fasen,
• FIG. 18 shows the detail marked with the circle in FIG. 18 in an enlarged view, wherein it can be seen that one side of the box and one side of the counterpart are provided with edge side chamfers, with edge edges of the side chamfers each having a radius being rounded off, FIG.
• Fig. 20 is a side view of another invention
• FIG. 19a shows the detail marked in FIG. 19 with the circle in an enlarged view, wherein it can be seen that the dividing edge is delimited by two dividing edge chamfers,
• 20a shows the detail marked with the circle in FIG. 20 in an enlarged view, wherein it can be seen that the dividing edge is bounded by two dividing edge arches, 21 is a perspective view of a known from the prior art bundle picker in the form of a Kreisbogenabteilers,
• FIG. 40 is a perspective view of a bundle picker according to the invention in the form of a circular arc divider with a total of three differently sized bundle removal notches whose knife edges are delimited by different knife edge chamfers and knife edge arcs in their length
• FIG. 41 is a perspective view of a bundle take-off according to the invention
• FIG. 42 is a perspective view of a circular bundle picking disc provided with a plurality of bundle picking notches, the left three bundle picking notches being standard bundle picking notches, the middle three bundle picking notches being those with parallel exit, one exit direction being axially oriented, and the right three bundle removal notches being parallel exit, with exit directions oriented parallel to each other, all notches may be formed according to one of the variants illustrated in Figs.
• FIG. 1 shows a brush manufacturing machine, denoted as a whole by 1, with a material box 2 for storing a bristle supply 3 and a bundle removal device 4, which has a bundle collector 8 for removing bristle bundles from the material box 2.
• the brush production machine 1 shown in FIG. 1 also has a stuffing tool 5.
• the bristle bundles taken from the material box 2 with the aid of the bundle take-off device 4 can be transferred to it for stuffing into a brush body 7 which is kept ready at a corresponding holding device 6.
• the brush body 7 can be brought into the position required for the stuffing of the bristle bundles relative to the stuffing tool 5.
• the bundle removal device 4 comprises a bundle picker 8 which is movable relative to the material box 2 and a counterpart 9 fixed relative to the movable bundle pickup 8.
• FIG. 1 on the left side of the material box 2 also shows a material holder 10 which, if required, is analogous to the counterpart 9 can be designed.
• the bundle pick-up 8 has, in its position of use, the amount of bristle stock 3 stored in the material box 2. At least one bundle removal notch 12 applied to the front side 11. For taking off and separating a bundle of bristles from the bristle supply 3 and for delivering a picked-up bundle of bristles to the brush-making machine 1, the bundle taker 8 with its at least one bundle removal notch
• the bundle removal notch 12 are moved past at least to a dispensing position on the material box 2 and the bristle supply 3 located therein.
• the bundle removal notch 12 has two a notch opening
• the material box 2 comprises three magazines, each with a supply of bristle filaments 16.
• the individual magazines can in a required for the removal of bristle filaments 16 position relative to the bundle 8 to be brought.
• FIG. 5a shows a bundle picker 8 and a corresponding counterpart 9, as they are previously known from the prior art. According to FIG. 5a, it can be clearly seen that both the knife edge 15 shown there and the dividing edge 17 shown there are pointed, that is to say sharply tapered, as a result of which an arranged between these two Bristle filament 16 could be damaged during removal from the material box 2.
• At least the knife edge 15 of the two knife edges 14, 15 which is rear in the direction of transport of the bristle bundles into the delivery position is rounded.
• the knife edge 15 is provided with a knife edge radius 15a and the rounded dividing edge 17 is provided with a dividing edge radius 17a and rounded off.
• the knife edge radius 15a and the dividing edge radius 17a are each oriented to the longitudinal extension of the knife edges 14 and 15 and also the dividing edge 17.
• These radii 15a and 17a, with which the knife edges 14 and / or 15 and the dividing edge 17 are rounded, can have a length between 0.005 millimeters and 0.03 millimeters, more preferably between 0.005 millimeters and 0.02 millimeters.
• the bundle pickup 8 is a circular arc divider 18 pivotable or rotatable about a pivot axis, which can also be referred to as circular arc pickup, or a circular bundle pickup disc 19 pivotable or rotatable about a pivot axis.
• FIGS. 2 to 4a and FIGS. 24 to 39 show that a length of at least one of the knife edges 14, 15 is smaller than a maximum height of the bundle removal notch 12 measured transversely to the direction of movement of the bundle collector 8.
• a knife edge bevel 21 and / or a flat edge 20 of the bundle picker 8 and the respective knife edge 14, 15 oriented transversely to the longitudinal axis of the bundle removal notch 12 can be used. or a knife edge arc 22 may be formed.
• the length of the knife edges 14 and / or 15 can be limited, which favors a gentler removal of bristle filaments 16 from the bristle supply 3 in the material box 2 of the brush manufacturing machine 1.
• Knife edge chamfer 21 and / or at least one knife edge arc 22 is formed in the form of a comparatively large radius, so that the respective knife edge 14, 15 between at least two knife edge chamfers 21 and / or between at least two knife edge sheets 22 is arranged , This also reduces a length of the respective blade edge 14, 15 and is thus smaller than a maximum height of the bundle removal notch 12 measured transversely to the direction of movement of the bundle pickup 8 and also smaller than a length of the bristle film mants 16 Combination of such knife edge chamfers 21 and knife edge sheets 22, be it only on one side of the respective knife edge 14, 15 or on both sides of the knife edges 14, 15, as needed.
• FIGS 4 and 4a show a further detail of the bundle removal device 4 according to the invention, which allows a gentle removal of bristle filaments 16 from the bristle supply 3.
• the bundle removal notch 12 at least adjacent to one of the two knife edges 14, 15 has a flattened inlet bevel 23 into the bundle removal notch 12.
• the bundle picker 8 as shown in Figures 4 and 4a and in some of Figures 23 to 39 are also transversely or perpendicular to a longitudinal central axis of the bundle removal notch 12 oriented notched edges 24 of the bundle removal notch 12 with a notched edge radius 24 a, the preferably has a length between 0.005 millimeters and 0.03 millimeters, rounded.
• the counterpart 9 has at least one dividing edge bevel 25 oriented transversely to the longitudinal extent of the dividing edge 17 or at least one dividing edge arc 26 oriented transversely to the longitudinal extent of the dividing edge 17 in the form of a radius. Both by the dividing edge bevel 25 and by the radius 26, the dividing edge 17 is then limited in its length.
• Figure 4a has the counterpart 9 two transverse to the longitudinal extent of the dividing edge 17 oriented dividing edge chamfers 25. These are particularly well visible in Figure 4a.
• FIGS. 3 a and 4 a show a further variant of the counterpart 9 according to the invention.
• the counterpart 9 has two divisional edge arcs 26 oriented transversely to the longitudinal extent of the divisional edge 17, between which the divisional edge 17 is arranged, so that the length of the divisional edge 17 is smaller than a maximum height of the counterpart 9 measured transversely to the direction of movement of the bundle pickup 8, smaller than a maximum height of the bundle removal notch 12 and smaller than a length of the bristle filaments 16.
• parting edge chamfers 25 it is possible to round off the edges of the chamfer bevels 25, in particular to provide radii, in order to create a transition that is as soft and gentle as possible for the bristle filaments 16.
• FIGS. 2 to 4 a and 19 to 19 a show that at least one of the knife edges 14, 15 and the dividing edge 17 are oriented at right angles to a direction of movement of the bundle collector 8. This is also the case if the respective measurement Sector 14, 15 or the respective dividing edge 17 on one side or on both sides by knife edge chamfers 21 or dividing edge chamfers 25 or knife edge arches 22 or Generalungskanten sheets 26 are limited (see Figure 2a and Figure 3a and Figure 19a and Figure 20a ).
• the dividing edge 17 shown in FIGS. 20 and 20a has a straight length between 0.01 mm and 0.8 mm arranged between the two dividing edge bends 26. This can apply to any conceivable dividing edge 17 in the sense of the bundle removal device 4 according to the invention.
• An end face 29, which is oriented transversely to the front side 11 of the bundle pickup 8, has an end face 30 which, depending on the exemplary embodiment of the bundle pickup 8, is delimited by at least one edge chamfer 31 on the edge side.
• FIGS. 13 to 14 a show bundle receivers 8 whose end faces 30 are delimited in each case by two edge-side end chamfers 31.
• edge-side end chamfers 31 can be aligned at an angle of 20 degrees to 30 degrees to the end face 30 of the bundle picker 8 and have a chamfer width between 0.05 millimeters and 0.4 millimeters.
• bevel edges 31a of the end bevels 31 are in turn rounded off with a radius of between 0.005 mm and 0.03 mm.
• FIGS. 17 to 18 a illustrate that both a box side 32 of the counterpart 9 facing the bristle supply 3 and a payload side 33 of the counterpart 9 facing the bundle taker 8 have edge side chamfers 41 have, by which the respective end face 30 of the box side 32 and the pickup side 33 is limited.
• the edge side bevels 41 on the box side 32 of the counterpart 9 are at an angle of 20 degrees to 80 degrees to a side face 40 adjacent to the side bevel 41 the box side 32 are aligned.
• the edge side chamfers 41 are aligned at an angle of 20 degrees to 30 degrees to a sofase 41 adjacent side face 40 of the pickup side 33 of the counterpart 9.
• both the two side chamfers 41 arranged on the box side 32 and the side chases 41 arranged on the pickup side 33 have radius edges 41a rounded with a radius. The length of this radius, with which the edges of the edges are rounded, is between 0.005 millimeters and 0.03 millimeters.
• the chamfer width of the side chamfers 41, but also of the chamfers 31 is between 0.05 millimeters and 0.4 millimeters.
• Figures 9 and 10 show that the bristle supply 3 facing box side 32 of the counterpart 9 in a first section 34 and in a. second section 35 is divided.
• the first section 34 is bent along its longitudinal extension by a first radius 34a.
• the second section 35 is bent along its longitudinal extension by a second radius 35a.
• the first radius 34a is bent in the opposite direction to the second radius 35a.
• the dividing edge 17 is at a free end 42, too may be referred to as a tip, the first portion 34 formed on the counterpart 9.
• the second radius 35a is visibly larger than the first radius 34a.
• FIGS. 7 and 8 show a counterpart 9 previously known from the prior art.
• the box side 32 is curved in a first radius and the pickup side 33 is curved in a second radius.
• the dividing edge 17 of this counterpart 9 is formed from the tangen- tial approaching radii of the box side 32 and the pickup side 33. If the dividing edge 17 is rounded off, a relatively large distance results from the measuring tip 36 shown in FIGS. 7 to 10 for the sake of clarity. This is due to the extensive removal of material which is required to round off the dividing edge 17 of this counterpart 9.
• an average roughness value or surface roughness value Ra of the smoothed surfaces can be less than 0.1, preferably 0.05, more preferably less than 0.02. In principle, all surfaces of both the bundle pickup 8 and the counterpart can be smoothed in this way.
• FIG. 41 shows a bundle collector 8 of a bundle removal device 4 according to the invention, the bundle removal notch 12 of which is an adjustable bundle removal notch 12.
• the bundle removal device 4 comprises an adjustment device 37 for adjusting a notch depth and / or a cross-sectional geometry of the bundle removal notch 12, which is arranged on the bundle pickup 8.
• a Verstellplätt- Chen 38 can be inserted from behind into the bundle removal notch 12 here.
• FIGS. 22 to 39 show different embodiments of bundle takers 8 according to the invention.
• FIG. 23 shows a bundle collector 8 with a bundle take-off notch 12, the notched edges 24 are rounded by means of a notched edge radius 24a.
• FIG. 24 shows a bundle collector 8 whose two knife edges 14 and 15 are rounded off by means of a knife edge radius 15a.
• the notched edges 24 of this bundle 8 are also rounded off by means of a notched edge radius 24a.
• the bundle removal notch 12 is covered at least by a top-side pickup phase 43, which leads to a reduction of the edge length of the two blade edges 14 and 15 of this bundle pickup 8.
• FIG. 25 shows a bundle collector 8 whose rear knife edge 15 is delimited on both sides by two knife edge chamfers 21 each. Also in this bundle taker 8, the bundle removal notch 12 is covered at least on the upper side by a buyer bevel 43.
• the bundle taker 8 according to FIG. 26 differs from the bundle taker 8 according to FIG. 25 by the inlet bevel 23, which is arranged adjacent to the rear knife edge 15 of this bundle taker 8.
• the bundle picker 8 according to FIG. 27 has at least one upper-side pick-up bevel 43 which covers the bundle pick-up notch 12 and thus leads to a reduction in the length of both the knife edge 14 and the rear knife edge 15.
• the rear knife edge 15 is limited in length on both sides by a respective knife edge arc 22.
• FIG. 28 shows a bundle collector 8, which differs from the inlet bevel 23 arranged adjacent to the rear knife edge 15 according to FIG.
• FIG. 29 shows a bundle pick-up 8, which has notched notches 24 rounded off by means of a notched edge radius 24a as well as a rear blade edge 15 rounded off by means of a knife edge radius 15a in comparison to the bundle pickup 8, as shown in FIG.
• FIG. 30 shows a further bundle collector 8, which has an upper-side and a lower-side consumer bevel 43.
• the lengths of the two knife edges 14 and 15 are limited in each case by two knife edge chamfers 21 in length.
• each inlet slopes 23 are formed adjacent to both the front edge of the knife 14 and the rear knife edge 15 .
• FIG. 31 shows a bundle pick-up 8 which has a pick-up bevel 43 on both the upper side and the lower side. Both knife edges 14 and 15 are limited in length by two knife edge radii 22. Adjacent to the knife edge 14 and also adjacent to the knife edge 15, an inlet bevel 23 is formed in the bundle removal notch 12 at this bundle collector 8.
• FIG. 32 shows a bundle picker 8 which has no pickup chamfer.
• the rear knife edge 15 of this bundle acceptor 8 is bounded on both sides by two knife edge chamfers 21 in their length.
• FIG. 33 shows a bundle collector 8, which differs from the bundle collector 8, as illustrated in FIG. 32, by the notched edge 24 rounded off by a notched edge radius 24a and the rear knife edge 15 rounded off by a knife edge radius 15a.
• FIG. 34 shows a further bundle collector 8 which is located characterized differs from the bundle pickup 8 shown in Figure 32, that in this also the front knife edge 14 of the two knife edges 14 and 15 is bounded on both sides by two knife edge chamfers 21 in their length.
• FIG. 35 shows a bundle pickup 8, which has the same structure as the bundle pickup 8 shown in FIG. 34, wherein both the front knife edge 14 and the rear knife edge 15 of the bundle picker 8 are each rounded off by a knife edge radius 15a. It is also worth noting that the notched edges 24 of this bundle picker 8 are rounded off by means of a notched edge radius 24a.
• FIG. 36 shows a bundle pick-up 8 again without a pick-up bevel 43 whose rear blade edge 15 is delimited on both sides by a respective knife-edge radius 22 in its length.
• FIG. 37 shows a bundle taker 8, which differs from the bundle taker 8 illustrated in FIG. 36 by the notched edge 24 rounded off by a notched edge radius 24a and by a knife edge 15a rounded by a knife edge radius 15a.
• FIG. 38 shows a bundle collector 8 whose front knife edge 14 and its rear knife edge 15 are bounded in each case by two knife edge radii 22 in their length.
• FIG. 39 shows a bundle pick-up 8 which differs from the bundle pick-up 8 according to FIG. 38 due to the rounded notched edges 24 and the rounded rear knife edge 15, but is otherwise identical to this.
• the notched edges 24 are rounded off by means of the previously mentioned notch edge radius 24a.
• the knife edges 14 and 15 are through each rounded a knife edge radius 15a.
• the bundle removal notch 12, the knife edges 14 and 15, the dividing edge 17 and also all chamfers 21, 25, 31 and 41 on the bundle taker 8 on the bundle removal notch 12 and on the counterpart 9 can be made by HSC milling and / or HSC grinding getting produced.
• the smoothed surfaces of the bundle pickup 8, the counterpart 9 and also the radii for rounding off the at least one knife edge 14, 15 and the dividing edge 17 are produced by polishing or at least subsequently finished. This can be achieved in particular by vibratory grinding, flow grinding, plasma polishing, drag grinding,
• the radii for rounding existing edge edges in particular the chamfer edges 31a, 41a, if they are comparatively small, can also be produced or at least subsequently finished with such polishing methods.
• the end face 30 on the bundle picker 8 and the side front surfaces 40 on the box side 32 and the pickup side 33 of the counterpart 9 the chamfer surfaces of the end chamfers 31 and the side chamfer 41 and surfaces of the radiused edges 31a and 41a (see Figures 12a, 12a, 14a) and an inner surface 39 of the bundle removal notch 12 can be made in this way.
• the chamfer surfaces of the end chamfers 31 and the end faces 30 of the bundle pickup 8 according to FIG. 13a have an average surface roughness value Ra of 0.1.
• the chamfer surfaces of the end chamfers 31, the surfaces of the radiused edges 31a and the end surfaces 30 of the bundle pickup 8 according to FIG. 14a have an average surface roughness value Ra of 0.05.
• the chamfer surfaces of the side chamfers 41 and the side front surfaces 40 of the counterpart 9 according to FIG. 17 a have an average surface roughness value Ra of 0.1.
• the chamfer surfaces of the side chamfers 41, the surfaces of the rounded chamfer edges 41a and the side front surfaces 40 of the counterpart 9 according to FIG. 18a have an average surface roughness value Ra of 0.05.
• each chamfer and each surface, in particular those which can come into contact with bristle filaments 16, of the bundle collector 8 and of the counterpart 9 can be smoothed.
• the production or reworking of at least these smoothed surfaces of the bundle collector 8 and also of the counterpart can be carried out concretely by vibratory grinding, flow grinding, plasma polishing, drag grinding, drag finishing and / or hand polishing and / or electrochemical deburring.
• grinding or polishing agents are wet granules and / or dry granules, porcelain grinding bodies, plastic grinding bodies, ceramic grinding bodies, inox chips, copper sticks, stainless steel grinding bodies, zirconia balls, icrofinish grinding bodies, Plastic polishing body, wet grinding paste, polishing paste, walnut granules, corn granules and / or dry grinding granules are used.
• an intake chamfer 44 for the delivery of the bristle filaments 16 to the stuffing tool 5 can be seen.
• the bundle removal device 4 which comprises the bundle picker 8 which is movable relative to the material box 2 of the brush production machine 1 and which, on its front side facing the bristle store 3 in the position of use, is connected to the front side 11. has at least one bundle removal notch 12.
• the Bundelab Spotifykerbe 12 includes two the notch opening 13 of Bündelabnähme- notch 12 limiting, oriented transversely to the direction of the bundle 8, opposing knife edges 14, 15. Part of the Bundelab Spotifyvorides 4 is also the counterpart 9, which is provided with the bundle pickup 8 facing the dividing edge 17 is. In order to allow as gentle as possible removal of bristle filaments 16 from the bristle supply 4, at least one of the two knife edges 14, 15 and / or the dividing edge 17 is rounded.

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• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Brushes (AREA)
• Polishing Bodies And Polishing Tools (AREA)

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• 2016
  • 2016-09-21 DE DE102016011337.5A patent/DE102016011337A1/de active Pending
• 2017
  • 2017-08-16 KR KR1020197000547A patent/KR102618271B1/ko active IP Right Grant
  • 2017-08-16 CN CN201780046172.4A patent/CN109561759B/zh active Active
  • 2017-08-16 JP JP2019505165A patent/JP7044756B2/ja active Active
  • 2017-08-16 US US16/326,016 patent/US11484114B2/en active Active
  • 2017-08-16 WO PCT/EP2017/000985 patent/WO2018054516A1/de unknown
  • 2017-08-16 EP EP17755420.1A patent/EP3515247A1/de active Pending
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