CN103442616A

CN103442616A - Method and device for producing brushes

Info

Publication number: CN103442616A
Application number: CN2011800691894A
Authority: CN
Inventors: B·G·保彻瑞
Original assignee: GB Boucherie NV
Current assignee: GB Boucherie NV
Priority date: 2011-03-11
Filing date: 2011-10-06
Publication date: 2013-12-11
Anticipated expiration: 2031-10-06
Also published as: WO2012123004A1; ES2647582T3; DE102011013621A1; DE102011013621B4; CN103442616B; EP2683271A1; EP2683271B1

Abstract

Provided are a method and a device for producing brushes (10), bunches of bristles (16) are removed sequentially from a bristle store (44) in which the bristles are packed parallel. The removed bunches of bristles (16) are transported by means of a transport device (18) to a base part (12) of the brush (10). From the rear face of the base part (12) the bunches of bristles (16) are forced sequentially into assigned openings (14) in the base part, wherein between the transport device (18) and the rear face of the base part (12) a guide plate having deflecting channels is provided, through which deflecting channels the bunches of bristles (16) are forced into the opening (14) in the base part (12). Subsequently the bunches of bristles (16) are fastened to the base part (12) without anchoring.

Description

Method and apparatus for the manufacture of brush

Technical field

The present invention relates to a kind of method and apparatus for the manufacture of brush.

Background technology

The known different method for the manufacture of brush.Conventional brush body is provided with the setting of hole (" casement "), and it is corresponding to the setting of the expectation of bristle.The bundle of bristle or bundle be inserted into so in the hole of brush body and therein by means of the little anchor metal be pressed into or by means of staple by anchoring.

In the method for the alternative for the manufacture of brush, described method only is being implemented in several years and described method is called as AFT method (without anchor, planting hair), do not apply staple or anchor bristle tuft is fixed on little head plate, and loading plate is inserted in brush body or handle or fixed thereon subsequently.Manufacture the brush holder with casement in a modification of AFT method, described casement is corresponding to the pieces mould of expectation.Bristle tuft is inserted in these holes and is fixed on the brush handle so.The anchor portion of pieces covers with little plate subsequently.

Summary of the invention

The present invention relates to a kind of method and apparatus for the manufacture of brush assembled in described AFT method.

The invention provides a kind of method and a kind of device, it is worked very rapidly simply and particularly and is non-maintaining.

The method according to this invention is especially for manufacturing toothbrush and being provided with following steps:

Sequentially take out bristle tuft from the bristle storage, wherein said bristle is settled by parallel packing ground;

The bristle tuft of described taking-up is sent to the substrate of the part of the brush that a formation completes by means of a conveyer, it has for holding the hole of each bristle tuft;

Sequentially described bristle tuft is pushed into the hole of attaching troops to a unit from the dorsal part of described substrate, wherein be provided with one between the dorsal part of described conveyer and described substrate and there is the guided plate that turns to passage, by the described passage that turns to, described bristle tuft is pushed in the described hole of described substrate, and

Without anchor pole ground, bristle tuft is fixed on described substrate.

In the method according to the invention successively that is sequentially from a bristle storage particularly a Storage Box take out bristle tuft and send it to substrate.This substrate can or section's section of a kind of plate be connected with brush body or brush body self.The positive side of substrate is such side, the bristle of brush subsequently with it away from, dorsal part is usually the side of sealing in contrast, that is there is no the side of bristle.Guided plate is arranged between the dorsal part of conveyer and substrate, and described guided plate has the passage of turning to, and by the described passage that turns to, described bristle tuft is pushed in the described hole in described substrate.Can in substrate, realize thus tiltedly directed pieces or be a common large pieces by a plurality of pieces one, thereby for example produce bristle tuft extending longitudinally.Also can realize different pieces geometries, if it is circular for example turning to the entrance of passage, so outlet can have angle arranged or non-circular geometry in general, although, thereby pieces always takes out from Storage Box with identical cross section geometry, realize different cross section geometries in substrate.Therefore as " turn to " with concept described and make each bristle or whole pieces be offset perpendicular to the direction that pushes of straight line turn to passage.

In these a plurality of modification, be possible, they also can at random combine mutually:

Described turn to passage and described hole deviation ground trend and described pieces tiltedly on the spot to be anchored in described substrate and/or

Be provided with the passage (wherein at this, also for example by, there is the tiltedly passage along pushing the direction trend that turns to passage of trend and be attached to a common hole in substrate) of the common holes trend of a plurality of overlapped in substrate one, thus a plurality of pieces is pushed in the different passages be arranged side by side and through described passage be pushed in a common hole in substrate in case form a common pieces and/or

Be provided with at least one and turn to passage, it holds a plurality of pieces, in order to make their one, is a common pieces, and wherein this turns to passage preferably to have a plurality of entrances side by side, by described each passage of described entrance, by one, be a common passage that turns to, and/or

At least one turns to passage to have an entrance, and its geometry is different from the described geometry that turns to the outlet of passage.

The described outlet that turns to passage has geometry and the size identical with the hole of vicinity in substrate usually.

Embodiment proposes, and described guided plate is placed on the dorsal part of substrate and fix described pieces on substrate before and leaves described substrate.

Because bristle tuft sequentially that is is in turn directly clogged in substrate, so also do not need the high coupling of instrument and other substrates at device side separately.

In addition mostly with the support of a tool side, cooperate in the prior art, the hole of described support is exactly corresponding to the hole in substrate.At first fill this support and subsequently this support be sent to substrate to be filled with bristle tuft.The manufacture of a plurality of supports of working in a device is relatively expensive.The remodeling installed in addition for other brush is expensive.

Can design very simply this remodeling in the method according to the invention and in device according to the present invention.

In the method according to the invention, the position of substrate is aimed at and then moved with the static instrument pushed in hole for to be filled for each.For this reason one may be, described substrate is at least moved along both direction for pushing of described order, in order to described hole to be filled is aimed at bristle tuft described to be pushed.

The method can be matched with easily brand-new pieces mould as direct generation.

If use the positioner of a programmable at least diaxon of freedom, the particularly industrial robot of free programmable preferred diaxon to move described substrate, particularly this method can be matched with to new mould very fast.

Especially advantageously, by a pieces receiver, sequentially described bristle tuft is transported until described final position is pushed into described hole to be filled from the described final described bristle tuft in position.Not only for bristle tuft separately but also for transmitting therefore need an only movement, it can be for example that the circular arc of pieces receiver moves or traveling priority.

The pieces receiver must reciprocally not move forcibly between accommodated position and outgoing position yet.Also can consider, be provided with an annular or circular pieces receiver, it is for good and all along a direction rotation.

The bristle of application consists of plastics.

The advantage that the filling of the dorsal part of bristle tuft has is, pieces, because the stopper section in positive side is so outstanding from substrate, such as desired in positive side usually, is independent of the length tolerance of each bristle.In addition selectively also use there is the bristle tips of preprocessing, the bristle of conglobate sharp-pointed bristle tips for example.

According to preferred embodiment, during being pushed to described substrate, described pieces only applies axial compressive force to described bristle tuft in described conveyer.That is to say that bristle tuft is not by radial clamping.That is to say that when clamping the pieces end expands in gap, this makes to import in hole and becomes difficult.Such radial clamping power particularly occurs in so-called tension frame.

Because described substrate has little thickness usually and the length in hole (by described hole, keeping pieces) is equally correspondingly little, so be provided with a favourable method step, at device side, on the positive side at described substrate, pushing described bristle tuft before the location guiding piece with through hole.Described bristle tuft so is inserted in the through hole in described guiding piece via described hole.Preferably, right rather than compulsory situation is that described pieces is also outstanding from described guiding piece in positive side.

The guiding piece of described positive side can be configured to the clamping device for described pieces, and for example its method is that described through hole has so large cross section than the described pieces be pushed into wherein, makes described pieces be located in described through hole with interference fit.If the guided plate of dorsal part separates with substrate backward, the clamping of pieces stops extracting of pieces so.

The anterior end of described pieces can be between the erecting stage of described substrate or is contacted afterwards a casting die with shape exterior feature, in order to complete a brush finish with type exterior feature.Described brush finish is the machined surface of the positive side of brush, and it forms by bristle ends.This casting die can or exist and pushed the shape that described bristle abuts on casting die and moulds casting die thus as stopper section or after filling with respect to bristle when filling.

According to preferred embodiment, described after pushing described bristle tuft at dorsal part, from the hole of described substrate, outstanding bristle tuft is cut off.The tolerance of each bristle lengths, thus by full remuneration, because can realize length coupling accurately by this casting die on positive side, then is cut off simply on dorsal part.

The particularly so-called hot cutter realization of instrument of heating can realize or still pass through by the instrument cut to described cutting away.It has realized contacting between hot instrument and each pieces, and wherein be very high the service life of cutting element.

Described bristle tuft is fixed at dorsal part, for example, by hot melt and/or bonding and/or be placed in the plastic material of spray.Naturally also can be by the at random combination mutually of these fixing means.

As mentioned above, be tucked into the preferably pre-rounding of quilt or the preprocessing in advance of bristle in substrate.

According to an embodiment, during cutting away, only radially by substrate and (if present), by guiding piece, keep described bristle.Be provided with the fixture of little side on two ends, described end only abuts on described device and so is axially fixed on distolateral.

Described bristle tuft capped with dorsal part substrate.This for example can realize thus, makes brush body have a recess in the zone of the pieces end of dorsal part, and by one, prefabricated or cover piece spray is closed for it.The another kind of the covering of bristle tuft on dorsal part may be, design a prefabricated cover piece that there is molded jut, so-called sacrificial structure (Opferstrukturen) at it on the side of described substrate, described jut is hankered deliquescing in adding subsequently, particularly become fluid, so that subsequently with respect to substrate or more generally be extruded with respect to brush body.If substrate and brush body are two different parts, so natural brush body also can be provided with such sacrificial structure, so as its heating after with perhaps also heated substrate be connected.This cover piece can be provided with arbitrary form away from clean jut, in order to be used as tongue formula cleaner.

This is sealed the substrate extruding as an alternative.Do not treat fixing parts for one on the remainder of brush body if substrate has simultaneously on brush body, can when manufacturing brush body, the substrate extruding be sealed so.But the extruding of substrate is sealed and is not limited to this modification.

A particularly advantageous embodiment of the present invention proposes, by described bristle tuft dorsal part without anchor pole fix, particularly by fusion and/or bonding, and the substrate of described assembling be encased in an injection moulding tool by a bristle station subsequently the chamber of half mould in and at this, with its edge, abut in based on described Kong edge, chamber of attaching troops to a unit and during described bristle tuft protrudes into described hole.Dorsal part by the spray of brush portion section to described substrate, described brush portion section covers described bristle tuft.By the present invention, significantly reduced for the manufacture of the needed cost of loading plate, because described loading plate no longer moves to injection moulding tool from feather planting machine, injection moulding tool and feather planting machine synchronously no longer must intercouple forcibly thus.The bristle ends of bristle tuft fuses at first mutually in the prior art, and this realizes usually in having the orifice plate expensive to be manufactured of bristle tuft.This orifice plate is sent in injection moulding tool subsequently, in order to the pieces extruding is sealed.Substrate with bristle always is sent in injection moulding tool together with loading plate in the prior art or is sent in another station of injection moulding tool.This loading plate for when the injection moulding of brush body (head and handle) with respect to the support of expulsion pressure.Yet the present invention proposes, no longer be provided with the loading plate as the pore-forming that is provided with brush of the gripper shoe in injection moulding tool when the manufacture of brush body.Be provided with a hole (a preferably unique hole) in half mould at injection moulding tool in the zone in the chamber of releasing in contrast in the method according to the invention and in device according to the present invention, described a plurality of bristle tuft protrude in described hole.Described substrate only or almost only with its around edge abut in from described chamber the edge in hole out and preferably only be supported on this edge.

This substrate is maintained in chamber on edge side.

The same sealing ground that abuts in hole according to described substrate preferred embodiment with its border seal ground around ground around edge on, thereby realize sealing function.

By the method according to this invention (its aperture plate no longer circulates between feather planting machine and injection moulding tool), whole manufacture and whole device are just enough by significantly less orifice plate.

The substrate that now also possible that, will have a bristle is stored in apparatus for temporary storage or buffer storage.Therefore no longer cause stopping of corresponding another machine during maintenance work on injection moulding tool or feather planting machine, this has significantly improved flexibility generally speaking.

Preferably in the half mould according to device of the present invention, there are a plurality of chambeies, in order to improve the release rate of whole device.

Half mould with at least one chamber also can form on (and this is preferably) multi-piece type ground.Can use the first and second moulded parts, if necessary also have the other moulded parts with a plurality of chambeies that are arranged side by side particularly or serial chamber.This chamber that is attached to brush is divided into a plurality of sections so, for example section's section in the first moulded parts and section's section in the second moulded parts.The whole chamber of the mutual transition in these chambeies and formation half mould.This first moulded parts is still separable with the second moulded parts and perhaps is used as one or more means of transportation or release instruments that are located at substrate wherein.The first moulded parts is independent of the second moulded parts and at first is equipped with the substrate with bristle and only is coupled to subsequently the second moulded parts thus, that is directly before injection moulding.But, because can manufacture very simply owing to lacking hole pattern the first moulded parts, so can manufacture and apply many first moulded parts relatively inexpensively, this has obviously improved cycle time and the flexibility of whole device.

Yet also impossible, each half mould single type ground is formed.So brush body be presented in half mould and after spray from wherein taking out.

Must emphasize, according to preferred embodiment may spray in injection moulding tool so-called brush body, it can single member or many members ground formation.This brush body is normally brushed the part of handle, brush neck and brush.Other parts of brush form by substrate.

Yet it is favourable that an embodiment is also arranged, particularly in cheap brush, wherein said substrate self has almost had whole head and the handle of whole handle or brush basically.This substrate so naturally also forms the brush portion section and is carried out bristle and at least in the head zone of dorsal part, also or in inactive zone is extruded and seals subsequently.

Several can the maintenance in hole in substrate, be closed without pieces and by spray.Can in identical substrate, realize different bristle tuft settings thus.Alternative or the sealing be additional to without the pieces opening can or be fixed in hole (it the has random cross-sectional shape) spray of resilient profile piece.These profile piece are not bristles but have the profile piece of the other pattern that is less than or greater than common bristle.These parts for example also can have and be different from circular shape of cross section.Particularly such profile piece is used, in order to cause the effect of gum massage.

Above-mentioned another sealing may be the spray of plastics at dorsal part without the hole of pieces.Can or only seal the hole without pieces at this, or can positive side simultaneously together spray away from profile piece.The guiding piece of this positive side can be at this as injection model.

Bristle tuft is lateral to the bristle longitudinal direction and separates and particularly individually move towards described hole by conveyer from described bristle storage.Also do not use in the prior art known transmission tubule for conveyer, these transmit tubules and submerge in depository and self hold and clamp the pieces of bristle along the bristle longitudinal direction.Taking-up by side can realize on the one hand high cycle time and on the other hand pieces significantly less or not may be pressed together, location when this has improved in being moved into hole.

The method according to this invention especially also in conjunction with the brush be used, the soft flexible element that wherein at least one preferably consists of TPE except bristle tuft and brush away from and by spray to described brush.This soft flexible element can be positioned on the edge of brush and away from also or be located in area of bristles, that is by bristle tuft around.This soft flexible element for example has such function, when brushing teeth, realizes gingival massage.

This soft flexible element for example is transitioned into section's section of a softness on the connecting portion from handle to head single type and/or even is transitioned into handle, thereby realizes the elasticity of flexure or slide fixing feel on this section.

The present invention also provides a kind of device, particularly so-called brush-making machine for the manufacture of brush in addition, and it preferably utilizes above-mentioned the method according to this invention.Described device comprises a Storage Box with bristle storage place, and wherein bristle is settled by parallel packing ground; A withdrawing device for bristle tuft, described withdrawing device is lateral to its longitudinal extension part by bristle tuft and sequentially takes out from described bristle storage; A conveyer of standing for each bristle tuft being sent to filling, wherein said filling station has a keeper for the substrate to be used of brush; One has a guided plate that turns to passage between the dorsal part of described conveyer and the substrate that is transferred, by the described described bristle tuft of passage that turns to, is pushed in the hole in substrate; And described bristle tuft sequentially is pushed into to the mechanism in substrate by dorsal part through described guided plate.

Turn to the aforesaid modification of the formation of passage naturally also can realize in device according to the present invention, and can be individually or any combination ground realize.

Described device particularly comprise a sealing around storing apparatus, for example one hold platform, chain, index platform (Indextisch) or a kind of circle had for the accommodation section of substrate more generally, on described circle, this substrate is moved, so that by each station, for example for the station of cutting away bristle tuft and fixedly pieces station and in case of necessity for the station that is enclosed in the brush body that dorsal part opens or the station of spray brush body.

Preferably described withdrawing device is integrated in conveyer.

Another kind may be, conveyer moves to the filling station by pieces along the track of straight line or curve shape.So-called pieces receiver like this is shown in document EP0972465B1.

Also preferably include a pieces receiver according to device of the present invention, it sequentially is sent to the final described pieces in ，You Gai position, position by pieces and is axially shifted onto in hole to be filled.Therefore save and separately it is being delivered on another device or support after bristle tuft, described another device directly caused pieces on described position before pushing.

Also comprise in addition a station according to device of the present invention, in described station, for the described substrate sequentially pushed, at least along both direction, be moved, in order to opening to be filled is aimed at bristle tuft described to be pushed, wherein this station particularly has industrial robot programmable for the freedom of mobile substrate, preferred diaxon.

Preferred embodiment propose, a topping machanism is integrated in described device, by means of described topping machanism, cut away the bristle outstanding from substrate at dorsal part.Described topping machanism especially without moving transverse to bristle with supporting.By the loading plate by a device side, as corresponding cutter, at dorsal part, bristle is cut away in the prior art, described pieces is through described loading plate.This plate makes bristle stable, and a cutter moves along the surface at this plate, and described cutter cuts away described pieces.Although such cutting allows, cause the wearing and tearing of topping machanism and, therefore than the more difficult maintenance of device according to the present invention and more difficult replacement spare part, wherein on instrument, be not provided with loading plate.

As emphasized at this, this unsupported cutting preferably easily realizes by heatable instrument, wherein said hot tool contact bristle and it is cut away.

The thermometal line that this heatable instrument particularly flows through with an electric current forms, and it can be circle line or lenticular wire, wherein in test by lenticular wire, has realized extraordinary effect.

At the fixed station for bristle tuft, described bristle is by restrainting ground or always being welded to each other and/or bonding and/or cast.

The guiding piece of device side (it can be transported to the positive side of substrate) continues to move and locate described pieces together with substrate from CFS to CFS.

For the locality specific of the end of the rear side that makes bristle, particularly, when having the brush surface of type exterior feature, described device has a transmissible casting die with type exterior feature, and it is the contact brush pieces during clogging or afterwards.A corresponding casting die can be moved with respect to pieces by dorsal part.

The accompanying drawing explanation

Other feature and advantage of the present invention can obtain from explanation and the accompanying drawing be referenced subsequently subsequently.Wherein:

Fig. 1 a to 1h is the continuous step of the method according to this invention, and described step is implemented in device according to the present invention;

Fig. 2 is the top view according to the signal at a station of the present invention, wherein bristle tuft is taken out from a Storage Box;

Fig. 3 is the stereogram with station according to Fig. 2 of several parts that omit;

Fig. 4 is the detail view of the amplification of Fig. 3;

Fig. 5 is the sectional view according to the described station of Fig. 3;

Fig. 6 is that wherein bristle is cut off according to the stereogram of the signal at another station of device of the present invention;

Fig. 7 is the detail cross-sectional view at the station of Fig. 6;

Fig. 8 a to 8c be have another cutter according to the continuous step in the station of Fig. 6;

Fig. 9 is the top view according to the signal of device of the present invention;

Figure 10 is the stereogram as the injection moulding tool of the part according to device of the present invention;

Figure 11 is the top view according to the moulded parts of the injection moulding tool of Figure 10;

Figure 12 is the top view with substrate of bristle, and described substrate is inserted in the moulded parts according to Figure 11;

Figure 13 is the upward view according to the moulded parts that is provided with substrate of Figure 12;

Figure 14 is the embodiment for the alternative of Figure 11, wherein supports in the hole that protrusion additionally protrudes into moulded parts;

Figure 15 is the top perspective view according to the toothbrush without bristle of another embodiment, and described toothbrush has a soft flexible element.

Figure 16 is the rear perspective view at the toothbrush with the Figure 15 under the state of bristle;

Figure 17 is the rear perspective view of a modification of revising a little than the toothbrush according to Figure 16; And

Figure 18 is the modification according to device of the present invention.

The specific embodiment

Figure 1 illustrates a plurality of continuous step for the manufacture of brush, this brush has the form of toothbrush at this.Described brushing tool has the brush body 10 with brush, and it forms substrate 12 hereinafter.Substrate 12 has a plurality of through holes 14, and it is filled with bristle tuft 16, and described bristle tuft is fixed on substrate 12.

In Fig. 1, can see, it also will further illustrate conveyer 18(hereinafter) transmit each bristle tuft 16, they are pushed into hole 14 from the dorsal part of substrate 12 by a device of conveyer 18.

Conveyer 18 has accommodation hole 22 for this reason, and it is filled and move towards substrate 12 with bristle tuft 16.Device 20 comprise one can linearly moving push rod 24, it axially is inserted in accommodation hole 22, in order to bristle tuft 16 is pushed in the hole 14 of aiming at accommodation hole 22 of substrate 12.Described substrate moves and aims at bristle tuft 16 to be pushed with hole to be filled 14 along two axis.

Guided plate 17 abuts on the dorsal part of substrate 12, and conveyer 18 abuts in again on guided plate 17.Guided plate 17 is the assemblies at corresponding filling station and automatically is placed on it after carrying substrate 12 to be stuffed.

Guided plate has a plurality of passages, and it respectively has an entrance and have an outlet in positive side (towards substrate 12) at dorsal part (towards conveyer 18).A plurality of edges exactly in passage push direction (moving direction of push rod 24) orientation.Yet several passages are configured to and turn to passage 19, its pieces that will be pushed into wherein is mobile perpendicular to pushing direction ground.

Preferably all entrances 21 have identical geometry and size, particularly circular shape.

Illustrated in Fig. 1 a and turned to passage 19, it tiltedly overlaps the to each other trend, has two entrances that separate 21 and two almost outlets 23 of transition mutually.Outlet 23 is attached to a common hole 14, and is equipped with two pieces by 19 1 the excessive holes of passage that turn to of two overlapped orientations, and described two pieces one subsequently turn to a common pieces.Alternative is in the embodiment illustrated, and one axially is filled in the excessive hole 14 in substrate 12 along the passage of releasing the direction orientation with an adjacent passage 19 that turns to moved towards towards its sideling.

The geometry in described excessive hole 14 is arbitrarily, can be provided with as requested polygonal or circular hole, microscler hole 14.

All along releasing direction or parallel direction trend with it, can also be provided with the hole tilting with releasing direction 14 at Fig. 1 a mesopore 14 according to the cross section of amplifying, wherein turn to passage 19 to aim at it.This tilting hole 14 allows tilting pieces 16 to be placed in substrate 12.

Another modification is, entrance 21 and outlet 23 have different geometries, and for example several outlets 23 have a geometry ellipse or polygonal, and wherein cross section can be identical with entrance 21.In turning to accordingly passage 19, therefore the bristle of pieces reciprocally moves perpendicular to releasing direction, in order to produce new pieces shape of cross section, it is corresponding to the shape of cross section in the hole 14 of attaching troops to a unit.Passage in guided plate 17 particularly corrodes by wire or the spark erosion manufacture.Guided plate is hardened to 50 to 60 HRCs subsequently.

As appreciable in Fig. 1 a, be provided with the guiding piece 26 of device side on the positive side of substrate 12, preferably, with the positive side contacts of substrate 12, its through hole 28 is aimed at hole 14 to be equipped.

Stop part 30 and guiding piece 26 away from.Bristle tuft 16 is pushed in guided plate 17 so deeply, and the dorsal part of substrate 12 and substrate 12 that is brush in the guiding piece 26 of 10 dorsal part makes bristle tuft outstanding from guiding piece 16 and pushed with respect to stop part 30 again in positive side.

Once all holes to be equipped 14 are provided with bristle tuft 16, realized so the state of equipping fully in Fig. 1 b.Guided plate 17 can realized before the state shown in Fig. 1 b or again upwards be removed subsequently.

Guiding piece 26 can be configured to the clamping device for pieces 16, for example additional perpendicular to pushing movably clamping element of direction by one, it has one than the pieces like this large cross section that be pushed into wherein in side along its guiding extruding or by through hole 28 by pieces 16, makes pieces 16 be arranged in described through hole 28 with interference fit.

Must emphasize, must fill with bristle tuft 16 according to the not all hole 14 of embodiment of brush 10.For the modification of the pieces mould of realizing bristle and other geometry is possible, selectively give different holes 14 equipment bristle tuft 16.

In the next method step shown in Fig. 1 c, remove stop part 30.Casting die 32 is axially up moved towards bristle tuft 16 from positive side, thereby casting die contacts all bristle tuft 16 with replacing.The upside of casting die 32 has the type exterior feature, in order to form complementary brush finish (end of the front side by bristle tuft 16 forms).

Partly upwards pushing again bristle tuft 16 and described bristle tuft by casting die 32 gives prominence to respect to substrate 12 at downside unevenly.

Selectively on this dorsal part, be provided with a corresponding casting die 36 with the casting die complementation, thereby bristle tuft 16 can be axially as far as possible seamlessly be fixed between casting die 32 and corresponding casting die 36.

One of in order to realize the tolerance compensating of the different length based on each bristle, can consider, or flexiblely or in elastic bearing ground design casting die 32,36.

The end of the front side based on casting die 32 bristle tuft 16 has the orientation accurately to substrate 12.

Next step (it also will more clearly be described hereinafter) dorsal part with respect to substrate 12 away from bristle tuft 16 be cut off (Fig. 1 d), thereby the free end produced is nearly on substrate 12.

Next method step (it can be performed in the station of following), at dorsal part stationary brush pieces 16.Should fixing for example by welding, realize.

The a kind of of welding may, shown in Fig. 1 e, wherein push the plate of a heat 38 facing to bristle tuft 16.The end of the rear side of the bristle be comprised of thermoplastic fuses mutually, preferably forms the layer 40(of perforation referring to Fig. 1 f).During this fixation procedure and also, at casting die 32 during aforesaid working angles, preferably remaining on bristle tuft 16.Casting die 32 can be removed (Fig. 1 g) now, and is applied on the dorsal part of substrate 12 with the casting die 40 of posterior dorsal, at least in the zone of the end be welded to each other of bristle tuft 16.This casting die 40 can be a prefabricated part.Also can manufacture by spray casting die 40 to substrate 12 or on brush body as an alternative to this.And sacrificial structure that can certainly application of aforementioned is in cap or the application on brush body.

Preferably (be interpreted as without limitation) guiding piece 26 is being remained on substrate 12 during aforesaid method step, for use in supporting and sealing.

Each step in the method step that has just illustrated front hereinafter also will further illustrate in greater detail and describe.

Therefore Fig. 2 shows the further details according to the possible embodiment at the station of device of the present invention, and wherein bristle tuft 16 is by separately and be sent to substrate 12.This device has self a station with Storage Box 42 for this reason, is mounted with bristle storage place 44 in described Storage Box.

Bristle is directed and not arrangement group by group abreast in Storage Box 42.They are extruded towards conveyer 18 by the pressing mechanism of coupling.

Be interpreted as equally unrestriced embodiment current, conveyer 18 comprises a withdrawing device 48 swung around swinging axle 46, it has the bundle receiver of a plate shape, so-called in the illustrated embodiment circular arc, and it has an accommodation hole for bristle tuft 16 50.Accommodation hole 50 is opened on the side towards bristle storage place 44.If described bundle receiver swings to the right about Fig. 2, accommodation hole 50 contacts with bristle storage place 44 so.Be expressed in accommodation hole 50 towards the pretension of the direction of this accommodation hole 50 a plurality of bristles like this based on bristle storage place 44, make this accommodation hole be completely filled.

Separately therefore realizing in a side of the longitudinal extension part of bristle of bristle tuft 16, bristle is in this case perpendicular to plan.If accommodation hole 50 is filled with bristle, accommodation hole is deasil swung and is moved to position shown in figure 2 so.It is matched with the shape of plate 48 guided plate 52() for there is no pieces, can not drop out from accommodation hole 50.

Alternative also can realize traveling priority in the curved track that conveyer 18 has in said embodiment.

By described conveyer 18 bristle tuft 16, directly do not have loading plate or suchlike middle connection ground directly to be pushed in substrate 12 via guided plate 17.Must be noted that, each bristle tuft sequentially is removed and was transmitted before pushing until its final position by the pieces receiver from Storage Box 42.Bogey in the middle of this has been avoided being delivered to.

Yet because substrate 12 has a plurality of holes 14, they must in turn be filled with bristle tuft 16, and described substrate 12 is moved along both direction X, Y.Therefore hole 14 to be filled is towards accommodation hole 50 and bristle tuft 16 orientations next to be pushed.

Corresponding station preferably has so-called X-Y slide block, and substrate 12 is fixed thereon and can in a plane, be moved.The positioner that so-called X-Y slide block is programmable at least 2 axles of freedom, the simple embodiment of the industrial robot of programmable 2 axles of freedom especially.

Fig. 3 shows the stereogram of the Storage Box 42 with bristle storage place 44.Except guided plate 17, for illustrating of whole station omitted a plurality of parts.

Fig. 3 also shows a bristle tuft 16, and it just in time is pushed in the hole of substrate 12 by device 20.Keeper 54 is by guiding piece 26 location and be fixed on directed element, for example, on X-Y slide block, by described X-Y slide block, realizes the orientation of substrate 12 to accommodation hole 50.

Fig. 4 shows, bristle tuft 16 after the hole 14 that is pushed into substrate 12 from guiding piece 26 just side-prominent.But bristle tuft 16 is also protruded with respect to substrate 12 at dorsal part, or directly after pushing or after casting die 32 moves up.

Entrance 21 particularly has the cross section identical with accommodation hole 50.

In contrast to Fig. 1 a, can between the rear side of guided plate 17 and conveyer 18, there is a gap 60(without guiding referring to Fig. 4).At this, perhaps can provide, entrance 21 is designed to slightly larger than accommodation hole 50 because pieces 16 can be on its free end is disperseed a little.

In addition usually advantageously, entrance 21 is towards dorsal part infundibulate ground expansion a little.

In order to import simply bristle tuft 16, hole 14 preferably is provided with the chamfering 62 of expansion at dorsal part.

And can see in Fig. 5, substrate 12 has a recess 64 in the zone in hole 14 at dorsal part.Cover piece 14 is introduced or spray in this recess 64.

Conveyer 18 so designs, and makes and only applies the axial compressive force pressure of bristle longitudinal direction (that is along) during conveyer 18 is pushed into hole 14 by bristle on bristle tuft to be introduced.This means, are rigidity around the wall of accommodation hole 50, do not have radial clamping power to be applied on bristle.Unique clamping force is by the realization of the pretension in bristle storage place 44, and described pretension can be said and be continued to be directed in accommodation hole 50 when bristle separates.

Fig. 5 yet shows another modification that turns to passage.At this, a plurality ofly turn to the passages along releasing the direction orientation that passage 19 and place therebetween to flock together guided plate 17 is interior, so that one turns to a common passage 19 ' that turns to a common outlet 23.Outlet 23 has the shape of the elongation of a pieces 16 that is used to form a common plate shape.Outlet 23 preferably has a cross section, and doubly, wherein X equals to flow to the quantity of the pieces 12 in described common hole 14 to its X corresponding to accommodation hole 50.

Cutting away preferably in self a station according to the present invention of bristle tuft 16 realize, and preferably by means of the instrument of a heating.

Fig. 6 shows the embodiment of the instrument 70 of such heating, and described instrument comprises the wire of the heat that an electric current flows through.This wire is arranged essentially parallel to the dorsal part of substrate 12, as far as possible nearly along substrate 12, moves and outstanding bristle ends is separated.Can be by bristle also partly fusion mutually at this.

Fig. 7 shows the heat effect of the bristle tuft 16 of not yet cutting away, and described bristle tuft fuses mutually.In addition, also the separated end of the bristle tuft 16 of reservation in substrate 12 can be fused, yet this is for locating and being fixedly favourable.

In Fig. 6 and 7, illustrated cross section basically circular wire as instrument 70, and can see the embodiment with so-called flat alternative wiry in Fig. 8 a to 8c.The wire cutter formula ground of the heating that this same electric current flows through is tilting with respect to bristle to be separated.

In Fig. 5 to 8, can see, bristle tuft 16 is not supported in side in the zone of its cutting point yet.Instrument 70 is not supported in the zone of substrate 12 yet, thereby wearing and tearing do not occur when cutting.This cutting can be said without supporter ground and realize.

Bristle tuft 16 or in side only by substrate 12(referring to Fig. 8 a to 8c) or keep by substrate 12 with by guiding piece 26.If yet there is guided plate 17 when cutting away, this contributes to support so.If replace cutting with the instrument of heating, guided plate 17 also can be configured to corresponding cutter so with being cut.In axial direction bristle tuft 16 is positioned between casting die 32 and corresponding casting die 36.This location should also be guaranteed during cutting, yet this cannot be understood to restriction.

Fall on substrate 12 end for fear of the separation of bristle tuft 16, and this cutting is preferably carried out (referring to for example Fig. 8) downwards by head that is with dorsal part.The end 72 of separating thus is simply to whereabouts.

Bristle tuft 16 on substrate 12 fixing as described in or by welding and/or by bonding and/or for example realize during producing cover piece 40 by cast.Cover piece 40 can be particularly dorsal part have away from clean protuberance 80 be used to form tongue formula cleaner.Can be pressed into afterwards as an alternative or the cover piece 40 of bonding conveying, also use aforesaid sacrificial structure.

Not all hole 14 must be closed by bristle tuft 16.Also can as start mentioned as described in one or another hole 14 retain and fill.When subsequently bonding or cast or rear spray so by 14 sealings of corresponding hole.

In addition also possible that, several holes are equipped with flexible profile piece 82, as exemplarily shown in Figure 6.In substrate 12 corresponding hole 14 at this profile piece corresponding to this integral type, its cross section significantly is greater than a described bristle tuft 16.Profile piece 82 can be by the massage protrusions that acts on gum etc.Profile piece 82 can or prefabricated and be assembled to subsequently in hole or immediately by spray to Zhong Huo hole, hole.

Figure 9 illustrates for the device according to aforesaid method manufacture brush.This device is configured to the instrument of the platform 100 that for example has a rotation.Preferably outside tool stand 100, by withdrawing device 48 and conveyer 18, each bristle tuft 16 individually being moved to substrate 12(is brush body 10 at this), wherein described brush body is placed on guiding piece 26 before.Storage Box with empty guiding piece 26 can exist and be not shown at this for promoting clearness.

As already mentioned, in dispatch station, by each, single bristle tuft 16 is clogged in the hole 14 of attaching troops to a unit, and its method is to move along X and Y-direction the guiding piece 26 kept in side.

This substrate 12 that completes outfit is moved to subsequently workbench 100 and reclines thereon.The workbench 100 of this rotation transmits 12 to stations of one or more substrates, in described station, according to Fig. 1 c casting die and corresponding casting die 32,36, aims at pieces.

Pieces is cut off by means of instrument 70 at dorsal part subsequently.Described cutting away can be realized in back to back station or in following station, places for the first time casting die and corresponding casting die 32,36 in described station.

Subsequently bristle tuft 16 is fixed at dorsal part, for example, under heat effect.

Last spray cover piece 40.The brush completed is removed and is for example stacked.Guiding piece 26 does not illustrate clearly to the transmission in first stop.

Must emphasize in this, replace molded substrate 12 on brush body 10 also can use the substrate of plate shape, the substrate of this plate shape for example by extruding, seal be fixed on brush body 10 before by all stations.

At an injection moulding tool shown in Figure 10 to 13, its can be used as another stand in comprise a plurality of stations for the manufacture of the brush device in be employed.

This injection moulding tool illustrates with main basic structure and comprises half mould 142 on the lower half mould 140 of a multi-piece type and in Figure 10, they have chamber separately, and described chamber is mutually transition and form a cavity for the treatment of spray under the state of the closure of instrument.Lower half mould 140 comprises at least two parts, that is the first moulded parts 144(its in Figure 11 and 13, illustrate in greater detail) and the second moulded parts 146.Moulded parts 140,142 comprises a plurality of chambeies that are arranged side by side 156.

The first moulded parts 144 has a hole 148 in the zone in each chamber 146, and it is based on chamber 146 and the bristle tuft 16 for holding substrate 14.In depth there is and is the part in chamber 146 edge 150(in it) around corresponding hole 148.These edge 150 use act on bearing-surface and the supporting surface of the substrate 12 with bristle.Except 150 chambeies 146, edge yet have a neck section 152 as the transition between brush and brush handle.

This neck section (as shown in figure 10) is transitioned into the restriction in the chamber in the second moulded parts 146 or holds in section's section 156 of handle of brush.

According to only preferred embodiment being provided with a hole 148 for whole bristle tuft 16 of holding substrate 12.This makes the manufacture of the first moulded parts 144 low-cost especially.

Hole 148 or be configured to through hole or blind hole completely.Must guarantee in each case, hole 148 is enough dark, makes the outstanding and part that appears at an adjacency in the Bu Conggai hole, end of front side of bristle tuft 16 as on the bottom in the gap 160 in the second moulded parts 146 or on the bottom in the hole 148 of blind-hole type.Bristle tuft 16 is therefore freely outstanding downwards.

Preferred embodiment form head and the handle of brush in dorsal part substrate 12 bases that also extruding is not sealed.Possible at this, there is a part with bristle in head, it is extruded and seals subsequently when forming handle.Yet according to preferred embodiment head and handle, be single type, and head have the hole 14 for holding bristle tuft 16.

The substrate 12 that for example has bristle gets loose with guiding piece 26 with the method step manufacture according to Fig. 1 a to 1g and in method step subsequently.Therefore guiding piece 26 does not move to injection molding station together with the substrate 12 with bristle.

Substrate 12 with bristle is subsequently or mechanically or by manually being sent to the first moulded parts 144 and being inserted into there in hole 148, perhaps temporary place, a centre is arranged between bristle station and injection molding station, and the substrate 12 with bristle is temporarily stored in this temporary place.

Substrate 12 is located in chamber 146,156 afterwards in being inserted into injection moulding tool.Go up subsequently half mould 142 and be moved downward, so that closed injection moulding tool.

Can see the substrate 12 of insertion in Figure 12, wherein only be cut off in neck region in the mode illustrated for simplifying substrate 12 with drawing.

Also show the bristle tuft 16 be welded to each other at dorsal part in Figure 12.Substrate 12 has the recess of slot type at dorsal part, it is full of by liquid plastics when closed injection moulding tool.

The brush of the plastic-enclosed of spray on dorsal part.In addition can also with second component extruding, seal in the method step or in the other method step or spray section's section of handle for example.As illustrated, substrate 12 also can be only be comprised of the part of brush or brush, and in injection moulding tool the other subregion of spray subsequently.

When spray, substrate 12 only is supported on 148 edge, hole.And bristle tuft 16 is not supported.This has greatly simplified injection moulding tool.According to substrate 12 preferred embodiment, with its border seal ground, around ground, abut in hole 148 same sealing around edge 150 on, thereby realize sealing function.

Take out the first moulded parts 144 with brush body and or be sent to another injection molding station or be transported to a storage as the brush completed from injection moulding tool after opening injection moulding tool.

Do not transport substrate 12 from the bristle station to injection molding station because be provided with the orifice plate of the substrate 12 with bristle, thus these two the station or machine work with being separated from each other.Can not cause the parking of another machine the down time of a described machine.

To this, according to Figure 14, also possible that bottom based on hole 148 or the second moulded parts 140 in the zone based in space 160 are provided with outstanding support protrusion 170 along the direction of substrate 12 in upward to hole as an alternative.This support protrusion 170 is that bearing position straight line or as shown and preferred conical ground lead to substrate 12, in order to can move between bristle.Even if yet there do not is in this embodiment on edge 150 on top the support member of bridge-type out yet, it moves towards and for supporting between bristle tuft 16.

As in other all embodiments, hole 148 is so big, makes all or at least a plurality of bristle tuft 16 protrude in described common or common hole.

One or more for cleaning teeth with for the soft flexible element 180 of the massage of gum according to yet being provided with on brush except bristle tuft 16 in the embodiment of Figure 15 to 17 at toothbrush constructed in accordance.Yet this soft flexible and brush away from element 180 do not clogged but be injected on substrate 12, preferably before filling, be injected on substrate.Element 180 extends forward on bristle tuft 16 sides and away from substrate 12.

This soft flexible element 180 can be positioned on the edge of brush and away from also or be located at (referring to Figure 15) in area of bristles, that is by bristle tuft 16 around.

Brush body 10 is manufactured to multimember moulding, and one of them member forms this soft flexible element 180 individually or by section's section ground.In the embodiment according to Figure 15 and 16, the material of element 180 extends until, in handle, form a handle dorsal part that soft gripping is more steady there.The join domain 182 from handle to head, this soft material forms larger section's section and for the elastomeric joint of a type.

The transition of single type that does not there is the soft flexible element 180 of handle or join domain 182 according to the modification of Figure 17.The section's section formed by the TFE material at this therefore must be by spray point independently by spray.

In the embodiment according to Figure 15 to 17, the rear portion of head is illustrated with untight form also.This must be after filling also will be by head in the sealing of its dorsal part, for example pass through the welding of the spray of another member or a lid or bonding.

This soft flexible element particularly is comprised of thermoplastic elastomer body (TPE).

Modification with soft flexible element must not be limited to the manufacturing method and apparatus with guided plate, as shown in figure 18.Also possible that, do not have guided plate 17 ground to manufacture toothbrush.The method does not have the guided plate 17 ground formations that turn to passage 19 in this case, particularly wherein in the conveyer 18 for delivery of bristle tuft 16 and the hole in substrate 12 that is in section's section of the movement of conveyer 18 and there is the gap 184 without guiding between the dorsal part of substrate 12, by described gap bristle tuft 16 by without guiding be pushed in substrate 12.

Therefore be not provided with guided plate according to device of the present invention accordingly, however be provided with other in front and the feature of mentioning in the claims (individually or in combination).

Claims

1. one kind for manufacturing the method for brush (10) by means of a device, it is characterized in that comprising the following steps:

Sequentially take out bristle tuft (16) from bristle storage (44), in storage place of described bristle, bristle is settled by parallel packing ground;

The bristle tuft (16) of taking out is sent to the substrate (12) of the part of the brush that a formation completes by means of a conveyer (18), described substrate has the hole (14) for holding each bristle tuft (16);

Sequentially described bristle tuft (16) is pushed into the hole (14) of attaching troops to a unit from the dorsal part of described substrate (12), wherein be provided with one between the dorsal part of described conveyer (18) and described substrate (12) and there is the guided plate (17) that turns to passage (19), by the described passage that turns to, described bristle tuft (16) is pushed in the described hole (14) in described substrate (12), and

Without anchor pole ground, described bristle tuft (16) is fixed on described substrate (12).

2. method according to claim 1, is characterized in that, in order sequentially to push, described substrate (12) moved along both direction, in order to hole to be filled (14) are aimed at bristle tuft (16) to be pushed.

3. method according to claim 2, is characterized in that, uses the positioner of a programmable at least diaxon of freedom, the particularly industrial robot of free programmable preferred diaxon to move described substrate (12).

4. according to the described method of one of the claims, it is characterized in that, sequentially described bristle tuft (16) is transported until final position is pushed into hole to be filled (14) from the described final described bristle tuft in position by a pieces receiver.

5. according to the described method of one of the claims, it is characterized in that, only apply axial compressive force during pushing in described conveyer (18) on described bristle tuft (16).

6. according to the described method of one of the claims, it is characterized in that, locate before a guiding piece (26) with device side of through hole (28) pushing described bristle tuft (16) on the positive side of described substrate (12), wherein said bristle tuft (16) so is inserted in described through hole (28) via described hole (14), make described bristle tuft preferably from described guiding piece (26) just side-prominent.

7. according to the described method of one of the claims, it is characterized in that, guiding piece (26) is configured to the clamping device for pieces (16), for example by through hole (28), than the pieces (16) be pushed into wherein, there is so large cross section, make described pieces (16) be arranged in described through hole (28) with interference fit.

8. according to the described method of one of the claims, it is characterized in that, the anterior end of pieces (16) is between the erecting stage of described substrate (12) or contact afterwards a casting die (32) with type exterior feature, in order to complete a brush finish with type exterior feature.

9. according to the described method of one of the claims, it is characterized in that, pushing described bristle tuft (16), pieces is outstanding and be cut off from described hole (14) at dorsal part afterwards, particularly by means of the instrument (70) of a heating.

10. according to the described method of one of the claims, it is characterized in that, for fixing described bristle tuft (16) by described bristle tuft at dorsal part hot melt and/or bonding and/or end is placed to the plastic material of spray.

11. according to the described method of one of the claims, it is characterized in that, by described bristle tuft (16) dorsal part without anchor pole fix, particularly by fusion and/or bonding, edge with described substrate abuts in the upper and described bristle tuft (16) in the edge (150) in hole (148) in the chamber (146) based on attaching troops to a unit and protrudes in described hole (148) in the chamber of half mould that the substrate (12) that assembled is encased in to an injection moulding tool by a bristle station and at this, and at dorsal part, the spray of brush portion section is arrived on described substrate (12), described brush portion section covers described bristle tuft (16).

12. method according to claim 11, it is characterized in that, described substrate (12) retains without supporting ground in the zone of described hole (148) when spray, support protrusion perhaps or linear (170) pushes with respect to described substrate (12) in described hole (148) between bristle, in order to support when injection moulding.

13. according to the described method of claim 11 or 12, it is characterized in that, described substrate (12) when spray, only with its edge, abut on injection mould and/or the end of the front side of described bristle tuft (16) axially not supported in described injection mould.

14. according to claim 11 to one of 13 described methods, it is characterized in that, described substrate (12) Flagless ground be sent to injection moulding tool from the bristle station.

15. according to the described method of one of the claims, it is characterized in that, describedly turn to passage (19) and described hole (14) tiltedly to move towards and pieces (16) tiltedly on the spot is anchored in described substrate (12), and/or a plurality of pieces (16) be pushed in the passage of the different overlapped trends be arranged side by side and be pushed in the common hole (14) in substrate (12) in order to form a common pieces (16).

16. according to the described method of one of the claims, it is characterized in that, described guided plate (17) is placed on the dorsal part of described substrate (12) and/or at the upper fixedly pieces (16) of described substrate (12) and leaves before described substrate.

17. according to the described method of one of the claims, it is characterized in that, except described bristle tuft (16), the soft flexible element (180) that at least one preferably consists of TPE and brush away from and by spray to described brush.

18. according to the described method of one of the claims, it is characterized in that, carry out described method in the situation that do not there is the guided plate (17) that turns to passage (19), particularly wherein between the conveyer for delivery of bristle tuft (16) (18) and the hole in described substrate (12), have a gap (184) without guiding.

19., comprising by the device according to the described method manufacture brush of one of the claims for particularly:

A Storage Box (42) with bristle storage place (44), in storage place of described bristle, bristle is settled by parallel packing ground;

A withdrawing device for bristle tuft (16) (48), described withdrawing device is lateral to its longitudinal extension part by bristle tuft (16) and sequentially takes out from described bristle storage (44);

One for being sent to each bristle tuft (16) conveyer (18) at filling station;

One has a guided plate (17) that turns to passage (19) between the dorsal part of described conveyer (18) and the substrate (12) that is transferred, by the described described bristle tuft of passage (16) that turns to, is pushed in the hole (14) in described substrate (12); With

Described bristle tuft (16) sequentially is pushed into to the mechanism in described substrate (12) by dorsal part through described guided plate (17).

20. device according to claim 17, is characterized in that, described conveyer (18) moves to described filling station by pieces (16) along a straight line or track Curved.

21., according to the described device of claim 17 or 18, it is characterized in that, be provided with the fixed station for described bristle tuft (16), in described fixed station, bristle is by restrainting ground or always being welded to each other and/or bonding and/or cast.

22., according to claim 17 to one of 19 described devices, it is characterized in that, be provided with the guiding piece (26) of a device side, described guiding piece can be transported to the positive side of described substrate (12) and together with described substrate (12) by each station.

23. according to claim 17 to one of 20 described devices, it is characterized in that, describedly turn to passage and described hole (14) tiltedly to move towards and pieces (16) tiltedly on the spot is anchored in described substrate (12), and/or be provided with the passage of a plurality of common holes (14) in described substrate (12) overlappingly trend, and/or be provided with at least one and turn to passage (19), the described passage that turns to holds a plurality of pieces (16), so that making described a plurality of pieces one is a common pieces, the wherein said passage (19) that turns to preferably has a plurality of entrances (21) side by side, by each passage of described entrance, by one, be a common passage (19 ') that turns to, and/or at least one turns to passage (19) to have an entrance (21), the geometry of described entrance is different from the described geometry that turns to the outlet (23) of passage (19).