CN1202777C - Brush making method and apparatus - Google Patents

Abstract

A manufacturing method of a brush 6 including of inserting bristles 2 into a bristles insertion hole 55, and thereafter implanting the bristles in a resin base plate. Further, each individual sleeve 60 is prepared in correspondence to cross sectional shapes and cross sectional areas in the bristles insertion hole 55, the bristles 2 are introduced to the sleeves 60, and each of the bristle 2 in the sleeves 60 is inserted to the corresponding bristles insertion holes 55 by an extrusion pin 71.

Description

The manufacturing method and apparatus of brush

Technical field

The present invention relates to the manufacture method of brushes such as toothbrush.

Background technology

Be called the method for fixing in the pieces insertion pieces hole of hardware with used hair of horizontal line as the prior art of toothbrush preparation method, extensive implementation utilization, the device construction of this mode is simple, but exist in corrosion of metal, size that thickness that the compound, the toothbrush that form metal and plastics when discarded planted the hair part can not reduce, plant mao mao's bundle is restricted (can not implant the coarse wool bundle), be difficult to tilt to plant unsafty shortcoming such as hair.

As the prior art of not using horizontal line, following 3 kinds of modes are arranged.

(1) pattern I: special fair 6-16725, USP4635313

Pieces is inserted in the pieces jack of metal mould for formation (die cavity), to pieces base portion filled plastics material with pieces jack.Therefore, can make toothbrush part integratedly.But on the formation of die cavity, plastic material is easy to leak out from the pieces jack during filled plastics material.In order to prevent this phenomenon, the pieces base portion fusion of plastic material is formed circle, but can not fully clog the pieces jack, for example, when improving forming pressure, plastic material is easy to come out from the clearance leakage of pieces jack.

(2) pattern II:USP 5458400, spy open flat 9-182632

Pieces inserted have on preformed a plurality of plastic plate of planting pore, again pieces and plastic plate are inserted in the metal pattern, the method that the opening portion of substrate is filled with plastic material.The method of this method and above-mentioned pattern I is the same, and the plastics of filling can produce from the gap of pieces jack and leak.

(3) pattern III: special fair 6-46962

To have the substrate of planting pore and plant the both sides of pore portion and pieces base portion and heat the back close adhesion, and make pieces be riveted on method on this substrate.Though it is simple and convenient to plant the cant formula, the fixedly fermentation of pieces is easy to produce quality problems.

Recently, on oral hygiene, be expected a kind of tartar remove spatter property between property, tooth, to gingival massage effect good toothbrush all.For the high toothbrush of manufacturing function, for the toothbrush handle with plant hair part and carried out all improvement ingenious.The present invention just relates to the improvement of fur planting method.

According to fur planting method, the pieces performance difference of toothbrush is tending towards variation but nearest trend is a fur planting method for a toothbrush.That is,, all study as research object with pieces intensity, pieces size, the area of using a hair rugosity, radical, implantation pieces and shape etc.Also sectionalization of user's requirement, with the corresponding toothbrush of tartar, toothbrush that the gum scrubbability is good, or the like the toothbrush of various types all go on the market.If mention the equipment of toothbrush, be expected to use with a kind of equipment and just can make all size, be easy to change the equipment of kind.

As major technique key element, can enumerate as follows to the toothbrush fur planting method.

[the major technique key element of fur planting method]

(1) can arbitrarily set pieces angle (hair is planted in inclination).

(2) can arbitrarily set the shape of pieces end.

(3) can the wool base attenuate will be planted.

(4) near planting pore, there is not flash.

(5) equipment is small-sized, and is easy to change kind.

The present invention does not use horizontal line, just can produce the toothbrush that satisfies above-mentioned technology essential factor.

In the toothbrush that does not use horizontal line, tilt to plant the technology of hair and can't say fully and finish.For example, among WO99/23910A1, WO01/13762A1, the WO01/14117A1 toothbrush with inclination pieces is disclosed.This manufacture method is the pattern I method of prior art record.That is, pieces inserted the pieces jack after, after the metal pattern member combination of the shaping die cavity that forms pieces base portion side toothbrush body part, injected plastic material in die cavity.In this method, for suppressing to leak from the plastic material that the pieces jack injects, following 2 kinds of methods are arranged, that is, i) raising is ii) stopped up the method for pieces jack to the packed density with hair of pieces jack.Become exposed portions serve in use owing to make the wool base of planting of toothbrush, so above-mentioned ii) method is difficult to be suitable for.And above-mentioned i) method use cut off in advance with hair the time, be difficult to pieces be inserted the pieces jack with high density.

Disclose a kind of method among the Te Kaiping 9-182632, that is, remained on pieces and insert, inserted the method in the pieces jack of once-forming handgrip part again with after in the through hole in case will plant the pieces of hair.At this moment, utilize, insert in the pieces jack by bellmouth with the hair pressure ram.This method is that whole pieces is once inserted, and the pieces of planting hair does not tilt with respect to planting wool base yet.Therefore, do not take sufficient countermeasure in the pieces jack to pieces being inserted with high density.Also be unsuitable for arbitrarily setting the pieces angle, arbitrarily design the purpose of the present invention of the shape of pieces end.

In USP 4693519 and USP 4255224, disclose a kind of method, that is, got the raw materials ready and to choose in (Pick-up) sleeve with hair and to plant the method for hair in the pieces jack from cutting off with hair.The method that tilts to implant pieces is disclosed in these inventions.Yet, in the method, choose and fashionablely be easy to produce error with the hair root number, also be difficult to improve packed density with hair.For this reason, restraint between jack and easily to form the gap planting the mao mao, the factor that produces overflow can't be eliminated.Do not tell about the method for arbitrarily shape of pieces end being carried out shaping in the method yet.

On the other hand, known for some and highdensity with the hair choose in the pieces jack, need insert from reel (reel).Disclose a kind of method among the Te Kaiping 7-194433, promptly supplied with hair by reel, cut into suitable length after, improve the packed density of pieces and the method for the pieces end being carried out shaping.That is, use compression set to carry out the stage compression, in compression, shaping is carried out in the pieces end, it is outstanding that its middle body is formed.This method needs compression set, and device structure is also very complicated.Also there is boundary in the pieces end shape that carries out shaping.Though this method is planted hair applicable to inclination, in an inclined direction need to dispose the reel of supplying with hair (reel).For this reason, reel can limit the direction (direction of inclination) of planting hair to each other or with the contact in hair path and the problem of reporting to the leadship after accomplishing a task.

The content of invention

Problem of the present invention is in fur planting method pattern I that does not use the horizontal line of putting down in writing in the prior art and pattern II, utilize device simple in structure, arbitrarily set mao angle of planting of pieces, and pieces is inserted in the pieces jack, avoid near planting pore, overflow taking place with high density.

Another problem of the present invention is arbitrarily the shape of pieces end to be carried out shaping.

The present invention is with restraint insertion pieces jack with the mao mao after, plant the brush manufacture method in resin material, promptly, have section shape and corresponding each sleeve of sectional area with the pieces jack, to import in the sleeve with hair, and utilize pressurizing unit that the pieces in this sleeve is inserted in corresponding each pieces jack.

The present invention is with restraint insertion pieces jack with the mao mao after, plant the brush manufacturing installation in resin material, promptly, have and corresponding each of the section shape of pieces jack and area imports sleeve with hair, and the pieces in each sleeve is inserted pressurizing unit in corresponding each pieces jack respectively.

In this specification, the hole axle of sleeve, the hole axle of pieces jack, plant " hole axle " speech that uses in the hole axle of pore and be meant in these holes the direction that keeps with Mao Shiyong staple length direction.In this specification, " section in the hole " speech that uses in the hole section of the section shape of pieces jack, sleeve, the sectional area of pieces jack is meant the section that keeps becoming with the staple length direction with Mao Shiyu vertical plane in these holes.

The simple declaration of accompanying drawing

Fig. 1 is the front elevation of toothbrush manufacturing installation.

Fig. 2 is the plane of Fig. 1.

Fig. 3 represents to have the substrate that pieces keeps utensil and handle part, is the profile that pieces keeps utensil (A), (B) is the plane of (A), (C) is the plane of substrate.

Operation, (A) that Fig. 4 represents to take out pieces are the profiles of vertical tube (Stack) and sleeve, (B) are the stereogram of sleeve and pressure ram.

Fig. 5 represents the preparatory process that pieces inserts, and (A) is substrate is arranged on the profile that pieces keeps the utensil state, (B) is the profile that substrate is planted pore, (C) is the stereogram of substrate.

Fig. 6 represents that pieces inserts operation, (A) is the profile that is inserted state by the pieces that the path sleeve forms, and (B) is the profile that is inserted state by the pieces that big footpath sleeve forms.

Fig. 7 is the profile that inserts the pieces state to the axial different pieces jacks in several holes.

Fig. 8 represents pieces end trimming, and profile, (B) that (A) is fillet shape shaping example is the profile of stage shape shaping example.

Fig. 9 represents that pieces inserts the state that finishes, and is that whole profile, (B) are the pith profiles (A).

Figure 10 represents that pieces base portion fusion operation, (A) are that whole profile, (B) are the pith profiles.

Figure 11 represents the filling work procedure of substrate back, (A) is that pieces keeps utensil to insert the profile of state, (B) is the profile of occupied state.

Figure 12 inserts another routine profile of pieces state to the axial different pieces jacks in several holes.

Figure 13 represents not have the substrate of handle part, (A) is that profile, (B) of pieces insertion state is the profile of substrate back occupied state.

Figure 14 represents the intensity that fractures of substrate, (A) is the profile with handle part substrate example, (B) is the profile with handle part substrate example.

Figure 15 represents to have in the metal pattern form of pieces jack, (A) is the profile that pieces inserts state, (B) is the profile that pieces inserts the state that finishes.

Figure 16 represents the operation of fusion of pieces base portion and metal pattern potting resin, (A) is the profile of pieces base portion molten condition, (B) is the profile to metal pattern potting resin state.

The preferred plan that carries out an invention

Toothbrush manufacturing installation 10 be with insert with hair 1 pieces 2 substrates 3 plant in the pore 4 after, to the back side of substrate 3 potting resin 5, make the device of toothbrush 6.The formation of toothbrush manufacturing installation 10 comprises that substrate forming machine, base board delivery device, pieces insert device, pieces base portion melting plant, substrate back filling forming machine.

In the toothbrush manufacturing installation 10, pieces inserts that device 20 constitutes as Fig. 1～and shown in Figure 3, on stand 20A, have with a hair feedway 21, pieces and keep utensil to keep mobile device 22, sleeve to keep mobile device 23, pieces pressurizing unit 24, press following work.

(with hair feedway 21)

The vertical tube 30 that has the cut-out of holding with hair feedway 21 with hair 1.Vertical tube 30, by pressue device 31 pressurizations, densification becomes certain density in guide groove 32.Like this, plant density by following sleeve 60 is stable, during pieces base portion melt extruded, when use the filling of the Mao Buhui confusion and substrate 3 back sides, resin can not leak (overflow) from pieces jack gap.

(pieces keeps utensil to keep mobile device 22)

Pieces keeps utensil to keep mobile device 22 to have the holding device 41 that maintenance pieces definite and fixing base 3 positions keep utensil 40, and this holding device 41 is located on the transport platform 42.Pieces keeps utensil to keep mobile device 22 that the revolving force of servomotor 43 is passed to transport platform by shaft coupling 44 by screw device 45, and transport platform 42 is moved along the directions X of guide rail to horizontal direction.Fig. 2 represents to keep utensil 40 to insert moment in the holding devices 41 pieces, and in order to plant pieces, pieces keeps utensil 40 to move along directions X.

Pieces keeps utensil 40 (Fig. 3 (A)) to have epimere dividing body 51, stage casing dividing body 52, hypomere dividing body 53, spring 54.Epimere dividing body 51 have recess (or protuberance) 51A that determines and keep substrate 3 positions and with substrate 3 plant pore 4 corresponding pieces jacks 55 (55A).Stage casing dividing body 52 has the pieces jack 55 (55B) that links to each other with the pieces jack 55 (55A) of epimere dividing body 51.Pieces jack 55B possesses the shaping hole of describing in detail below 56.

When pieces keeps utensil 40 to be fixed on the transport platform 42, sliding drive mechanism portion 57 makes stage casing dividing body 52 to the crisscross slip of the hole of pieces jack 55 axle, makes the hole axle of pieces jack 55B of stage casing dividing body 52 corresponding with the pieces jack 55A of epimere dividing body 51.When the pieces jack 55 (55A, 55B) of pieces 2 insertion pieces maintenance utensils 40 is middle, sliding drive mechanism portion removes, spring 54 makes stage casing dividing body 52 slide into origin-location and fixing pieces 2, maintains pieces 2 subsequently in each operation of conveying, melt extruded, back side filling.

(sleeve keeps mobile device 23)

Sleeve keeps mobile device 23 to keep sleeve 60, and moves to the Z of the Y of horizontal direction direction and vertical direction direction.The revolving force of servomotor 61 is delivered to by screw device 63 by shaft coupling 62 and walks crosswise platform 64, makes to walk crosswise platform 64 and move to the Y direction along guide rail.Walk crosswise platform 64 and carry the lowering or hoisting gear 65 that keeps sleeves 60, lowering or hoisting gear 65 moves to the Z direction, by to the moving of Z direction, by sleeve 60 take out pieces, to substrate 3 near moving and making pieces implant substrate 3.Between the mechanism of stop sleeve 60, have sleeve whirligig 66, with the angle of control sleeve 60.Fig. 2 represents the moment by sleeve 60 taking-up pieces, and sleeve 60 moves and make pieces implantation substrate 3 to the Y direction.

(pieces pressurizing unit 24)

Pieces pressurizing unit 24, the drive unit 72 of lift-launch pressure ram 71 on lowering or hoisting gear 65.Pressure ram 71 can push the plant pore 4 of the pieces 2 in the sleeve 60 to substrate 3.Pressure ram 71 has following shaping end 73.

Therefore, pieces inserts the formation that device 20 possesses following feature.

1. substrate 3 being remained on pieces keeps on the utensil 40.

2. by the sleeve that moves to the Z direction 60 take out store cut off with in the vertical tube 30 of hair with mao 1.

When 3. planting the pieces in the sleeve 60 on substrate 3, on directions X and Y direction, determine the position, have pieces and keep utensil to keep mobile device 22 and sleeve to keep mobile device 23 in order to make substrate 3 and sleeve 60.

4. utilize pressure ram 21 that planting at substrate 3 and pieces with hair in the sleeve 60 kept in the utensil 40.

5. when pieces keeps utensil 40 to insert with hair, use shaping hole 55 that is located at pieces jack 55 ends and the shaping end 73 that is located at pressure ram 71 ends, when pieces inserted, the end with pieces 2 was shaped to three-dimensional shape effectively.To the pieces of end enforcement three-dimensional shape shaping, can be whole pieces, also can be the part pieces.

6. keep utensil 40 all to implant to substrate 3 and pieces continuously.

7. after pieces maintenance utensil 40 plants, utilize the slip of epimere dividing body 51 and interruption dividing body 52 to make pieces 2 maintenance slips, prevent to take out mao confusion of using in the pieces maintenance utensil 40 back operations.

In addition, pieces inserts device 20 and can adopt following distortion.

1. fixing base 3 (pieces keeps utensil 40) is provided with three travel mechanisms of XYZ to sleeve 60.

2. each driving mechanism can adopt combination, cam mechanism of servomotor, linear pneumatic motor, motor and rack gearing etc.

3. sleeve 60 can adopt tradable device (with the mode that individual configuration each sleeve 60 in the device outside is exchanged by switch, perhaps purchase several sleeves 60, change the mode of these sleeves 60 etc. selectively when inserting pieces).

4. pieces 2 end shapings except with the three-dimensional ground shaping of pieces base portion, also comprise without exception on right angle orientation or in an inclined direction shaping without exception for pieces.

5. the pressue device 31 of vertical tube 30 except utilizing air driven, also can adopt the mode that applies the physics loading, or utilizes the extruding of various transmission devices with the mode of hair etc.

6. pieces keeps the epimere dividing body 51 of utensil 40, the slide mechanism of hypomere dividing body 52, except being divided into 2 parts, also can be divided into more than 3 parts.

7. do not use substrate 3,, have by use and to plant the same shape of pore and tapering shape with substrate and plant the pieces of pore and insert guide plate (100), can effectively pieces be planted in the part (die cavity) at metal pattern as following.

Below the order of utilizing toothbrush manufacturing installation 10 to make toothbrushes is described.

[1] pieces is imported operation (Fig. 4) in the sleeve

1. will fill vertical tube 30 as the cut-out of formation such as polyamide such as nylon, polybutylene terephthalate (PBT) one kind polyester with hair 1 by the resin that satisfies the toothbrush performance.

2. will keep importing and taking out quantitatively with pieces 2 (Fig. 4) by sleeve 60 in the sleeve 60 insertion vertical tubes 30 of constant basis with hair 1.

3. setting and pieces keep several pieces jack 55 section shapes and corresponding each sleeve 60 of area on the utensil 40.

4. alleviate the resistance that acts on sleeve 60 when inserting sleeve 60 in the vertical tube 30, and bend with hair 1, reduce the wall thickness of sleeve 60 ends, and, the root wall thickness is controlled at the wall thickness of regulation in order to ensure intensity in order to prevent.

Specifically, toothbrush with hair in, consider that from the property inserted, durability two aspects the wall thickness of sleeve 60 ends preferably is taken as 0.1mm～0.3mm, and root is taken as 0.3mm～0.8mm.The periphery of the end face edge part of sleeve 60 can form the fillet of R0.1mm～R0.2mm, or carries out chamfering, to improve the property inserted.On the interior outside of sleeve 60,, can improve the sliding of sleeve 60, and be easy to insert if implement various coatings (as polytetrafluoroethylene (PTFE) etc.).For the material of sleeve 60, consider processability, durability of sleeve 60 etc., can carry out all selections (the high rigidity material of carrying out Quenching Treatment can increase the durability of end).

Form good correspondence in order to alleviate when resistance when vertical tube 30 inserts and inclination plant, it is also very effective that the end face of sleeve 60 forms the shape of cutting sth. askew.

[2] pieces inserts preparatory process (Fig. 5)

1. substrate 3 is with satisfied resin as the toothbrush general characteristic, as (Fig. 5) with usefulness substrate forming machine injection moldings such as polypropylene.Substrate 3 is the examples that head 3A and the 3B of handle portion formed one, and what the recess at the head 3A back side had a plurality of formation openings plants pore 4, plants pore 4 and has pyramidal insertions mouth 4A in the rear side of substrate 3.

2. substrate 3 is kept the recess 51A of utensil 40 to keep the position of determining by pieces, 55 one-tenth connected states of pieces jack of planting pore 4 and pieces maintenance utensil 40 of substrate 3.Pieces keeps the pieces jack 55 of utensil 40, with respect to the face that the plants 3C of substrate 3, except becoming orthogonal, also can become oblique.Oblique can be the part in the pieces, also can be whole.

3. pressure ram 71 is inserted in the sleeve 60 that keeps pieces 2, form and plant a mao SBR.Make the root of sleeve 60 form vacuum suction, can keep pieces 2 really, can prevent that in course of conveying pieces 2 from coming off.

[3] pieces inserts operation (Fig. 6～Fig. 8)

1. by pressure ram 71 pieces in the sleeve 60 2 is inserted in the pieces jack 55 of planting pore 4, pieces maintenance utensil 40 of corresponding substrate 3.At this moment, be located at the taper insertion mouthful 4A that substrate 3 is planted pore 4, absorbed the position difference of substrate 3 and sleeve 60, played guiding pieces 2 and entered the effect of planting pore 4.Pieces 2 in the sleeve 60 forms contraction by the cone of introducing port 4A, can keep the pieces jack 55 interplantation hairs of utensil 40 to high-density at pieces.Pieces 2 to plant gross density high more, that is, and pieces 2 many more with the hair root number, overleaf during potting resin 5, the inhibition effect of the overflow that causes for the clearance leakage of inserting mouthful from pieces because of resin 5 is high more.Yet when pieces 2 usefulness approximate number amounts were too much, it is very difficult that the insertion of pieces 2 becomes again, pieces 2 confusions reigned during insertion.

2. set as the preferred size of substrate 3, shown in Fig. 5 (B), the wall thickness a2 of substrate 3 is 1mm～5mm, the length a1 that plants effective bore portion of pore 4 is 0.5mm～2mm, the taper angle a3 of introducing port 4A is 20 degree～120 degree, simultaneously the ratio b2/b1 of the aperture b2 of sleeve 60 and the aperture b1 that plants pore 4 is 80～130%, and the overflow situation during according to the insertion of pieces 2, aesthetic appearance, back side potting resin 5 is selected better size.Pieces jack 55 apertures that keep utensil 40 about pieces, with pore 4 apertures of planting of substrate 3 be same diameter substantially, but consider the insertion of pieces 2, preferably make the aperture of pieces jack 55 set than the big 0.05mm～0.2mm of diameter of pieces 2.

3. keep the section shape and the sectional area of pieces jack 55 of utensil 40 corresponding with the plant pore 4, pieces of substrate 3, prepare each sleeve 60 after, to different the planting pore 4, when pieces jack 55 moves, be used alternatingly sleeve 60 (Fig. 6) of profile morphology.The pieces 2 that has cut is implanted in the sleeve 60 successively, when in several different pieces jacks 55 of hole direction of principal axis, planting mao, sleeve 60 can driedly not scratched to each other, can in the hole 55 that any hole direction of principal axis tilts, plant hair (Fig. 7) (with spool with hair with cut (spy opens flat 9-182632) when planting in batch mao with hair, can not be to form dried incline direction of scratching with mao moving direction and several pressure rams).

4. in the time of in pieces 2 being inserted the pieces jack 55 that pieces keep utensils 40, rely on the synergy of the shaping end 73 of pieces jack shaping hole 56,55 end and pressure ram 71 simultaneously, make the end of pieces 2 carry out three-dimensional shaping.

At pressure ram 71 and sleeve 60 peripheral shape of the joining face that meets at right angles that slides, side forms circular face within it, when using such shaping end 73 (Fig. 8 (A)), can prevent to twist in the gap of sleeve 60 and pressure ram 71 with mao 1.Be favourable to the processing of carrying out circle, taper processing especially with hair 1 end.

Form the stage during shapes (Fig. 8 (B)) at shaping end 73 with pressure ram 71, shaping end 73 has and each face of pushing with the end equidirectional of hair 1, in sleeve 60, use hair 1 longitudinally to move exactly, thereby causing in the time of preventing to push with hair 1 confusion, is favourable for the pieces 2 of sloped-end, the pieces 2 that direction of insertion tilts.

Pieces keeps the shaping hole 56 (Fig. 7) of the pieces jack 55 of utensil 40, preferably is located near the divisional plane of stage casing dividing body 55B.Owing to,, can obtain high accuracy processing so the end mill(ing) cutter (cutter) of processing load is very little near the divisional plane of dividing body 55B.

5. pieces keeps utensil 40 except constituting with metal material, also can constitute with resin material.During with formations such as polytetrafluoroethylene (PTFE), sliding is fine, can improve insertion.When considering sliding, two aspects of durability, it is also very effective to apply polytetrafluoroethylene (PTFE) etc. on metal material.

[4] pieces slides and keeps operation (Fig. 9)

1. finish (Fig. 9) when pieces 2 being inserted in the pieces jack 55 that pieces keep utensils 40, making stage casing dividing body 52 that pieces keeps utensil 40, be along hole axle and intersect direction slip and maintenance pieces 2 with pieces jack 55 with respect to epimere dividing body 51.Pieces keeps utensil 40 not to be divided into epimere dividing body 51 and stage casing dividing body 52 2 parts, and by being divided into more than 3 parts, can improve the maintenance effect of pieces 2.In this slided, the relative movement distance of epimere dividing body 51, stage casing dividing body 52 can be selected amount of movement according to the pieces hold mode between 0.1mm～1mm.

2. according to the above-mentioned pieces 2 that 1. keeps in the pieces maintenance utensil 40, can prevent in course of conveying with hair confusion reigned (come-up, distortion), can prevent to cause when carrying out melt extruded the distortion of hair (when particularly utilizing the ultrasonic vibration melt extruded with wool base, because of vibrating easy use hair come-up, forming distortion), (Figure 11 (B)) during potting resin 5 overleaf can prevent to be subjected to resin pressure and to form distortion with hair.

[5] pieces base portion fusion operation (Figure 10)

1. pieces 2 base portions of planting in the pore 4 that insert substrate 3 are carried out fusion, extract preventing.

To from being installed in the pieces 2 base portion end faces that pore 4 stretches out of planting of substrate 3 on the substrate holder tool 40, calandria 81 with pieces base portion melting plant 80 carries out melt extruded, make the base portion end face of each pieces 2 form an integral body, simultaneously, form the banded compressive plane 2A that plants pore 4 (Figure 10 (B)) that stops up substrate 3.Hole 4 with respect to substrate 3, after fusion, push, make the pieces base portion form fluid-tight engagement, form and stop up the banded compressive plane 2A that firmly plants pore 4, (Figure 11 (B)) during potting resin 5 so overleaf, can prevent to leak out between pore 4 and the pieces 2 (overflow) (compare with the mode of pieces being inserted the metal pattern, the mode with substrate more helps preventing overflow) from planting.

2. calandria 81 can use electric heater and hot blast, laser instrument, ultrasonic vibration to form eddy-current heating etc.The preferred molten operation of utilizing 81 pairs of pieces base portions of calandria is after with calandria 81 the pieces base portion being heated, after fusion engages and pushes, to cool off.Though be that calandria and pressing body are same one with the situation of ultrasonic vibration (welding body) as calandria 81 among Figure 10 and Figure 16, after the extruding, after cooling, owing to leave the pieces base portion, so molten resin can not form wire drawing.Its result, molten resin sticks on the supersonic welding junctor hardly, can prevent to reduce because of resin coking variable color makes in toothbrush the commodity value when using transparent bristle, so ideal.When calandria 81 was used the pulse cladding machines, preferably the formation with Figure 10, Figure 16 was the same, but above-mentioned electric heater, hot blast, laser, ultrasonic vibration, eddy-current heating etc. also can suitably and be used.

Because calandria 81 utilizes ultrasonic vibration, this vibration is easy to cause the chaotic and distortion with hair 1, but when using the mechanism that keeps above-mentioned [4] that pieces 2 slides, can suppress above-mentioned chaotic and distortion with hair 1, so very good.

3. keep in the utensil 40 at pieces, when on epimere dividing body 51 and stage casing dividing body 52, forming the marginal portion of pieces jack 55 (55A, 55B), shown in Fig. 9 (B), adopt circle or chamfering, can prevent that ultrasonic vibration from concentrating on this edge and using hair 1 formation melting adhered.The above circular or equal above chamfering of R0.2mm preferably.

[6] back side filling process (Figure 11) of substrate

1. will plant after the 2 base portion end faces of the pieces on the substrate 3 are with 80 fusions of pieces base portion melting plant, and keep utensil 40 to insert substrate back pieces and fill in the forming machine 90.Pieces keeps utensil 40 to be inserted into the position determination portion 92 of forming machine 90 by insertion machine 91.

2. after making the back side fluid-tight engagement of metal pattern 93 and substrate 3, by forming machine 90 with resin to the back side of substrate 3 recess injection molding.Can be with 93 rear side that are located at substrate 3 of metal pattern, and then can reduce the metal pattern expense, and also maintainability is also fine.

3. as the resin 5 of filling, mainly be to use and substrate 3 identical materials (for example polypropylene), for example, use identical polypropylene, also can change the rerum natura of substrate 3 and resin 5, improve formability and quality to substrate 3 back sides.Following method is specifically arranged, that is, and for substrate 3, use rigidity and high polypropylene homopolymer and the block polymer of resistance to impact,, fill the resin 5 of usefulness as the back side to guarantee intensity, use the polypropylene random copolymer of good fluidity, can prevent that resin from being leaked by the pore 4 of planting of substrate 3.

As resin 5, use the material (for example elastomer) different with substrate 3, can produce all good toothbrush such as the appearance characteristic that comprises elasticity and color and luster.

[7] other examples (Figure 12) of pieces insertion

1. when planting pore 4 implantation pieces 2 with respect to several different directions of substrate 3, make the hole direction of principal axis of sleeve 60 form same angle, consistent with the hole direction of principal axis of respectively planting pore 4, insert pieces 2, this is most preferred a kind of scheme.

Yet 2., in order to make sleeve 60 corresponding with all angles, sleeve 60 is inserted in the device 20 (Fig. 1, Fig. 2) with device and control circuits thereof such as arbitrarily angled drivable servomotor and several gears at pieces, therefore it is complicated to make that device constitutes, increased the weight of device simultaneously, made that a series of responsiveness can not high speed.For addressing these problems, can adopt following result of study.

3. be located at substrate 3 by use and plant the cone-shaped introducing port 4A at pore 4 places (size of [3] is set) insertion pieces 2, plant pore 4 for several different angles directions, the angle limit fixed edge of sleeve 60 is inserted, each hole shaft angle degree of planting pore 4 can insert in ± 30 ° with respect to vertical direction.If adopt with upper type, can be efficiently, simply constructional device is produced and had several differences and plant mao toothbrush of angle pieces.

[8] other examples of substrate (Figure 13, Figure 14)

1. the shape of substrate 3 forms by having part and its neighbouring part of planting pore 4, therefore, if form the form (Figure 13) of having only head 3A and not having handle part 3B (Figure 12), substrate 3 is fixed on pieces to be kept in the utensil 40, carry out course of conveying and plant hair fixing in, can obtain the device of little spatialization.

2. the form of the substrate 3 that is only formed by head 3A, according to the size setting situation of planting mao portion's each several part, the intensity of toothbrush has priority.The substrate 3 that links together for head 3A and the 3B of handle portion, when the bonding force of substrate 3 and back side packing material 5 dies down, plant resin 5 end faces of pore 4 by back side recess, positive and negative connects continuously between f-f, therefore has the possibility (Figure 14 (A)) of frangibility.Opposite with it, during the substrate 3 that only forms by head 3A, owing to planting the discontinuous connection of pore 4 positive and negative between g-g, so help strengthening intensity (Figure 14 (B)).

[9] has the example (Figure 15, Figure 16) of pieces jack in the metal pattern

Do not use substrate 3, but pieces 2 is inserted in the pieces jack 95 that is provided with in the metal pattern 94 of forming machine 90 (Figure 11), can make toothbrush yet.

1. for metal pattern 94, import and aforesaid substrate 3 same modality for inserting the guide plate 100 that pieces is used, by guide plate 100 plant pore 101, in the pieces jack 95 of the pieces 2 insertion metal patterns 94 that pressure ram 71 is squeezed out from sleeve 60.

Guide plate 100 preferably applies the guide plate of polytetrafluoroethylene (PTFE) etc. on metal material, just in case sleeve 60 and guide plate 100 come in contact, perhaps guide plate 100 contacts with metal pattern 94, also can avoid they are sustained damage.Do not use guide plate 100, when the pieces jack 95 that directly pieces 2 is imported metal patterns 94 from sleeve 60, owing to the importing cone is not set at pieces jack 95 places of metal pattern 94, from can not stably inserting in appearance with hair.

By pore 101 places of planting cone-shaped introducing port is set, can the pieces in the sleeve 60 2 be imported with compact state and plant in the pore 101, and then insert with high density in the pieces jack 95 of metal pattern 94 at guide plate 100.Can prevent that like this 2 of metal pattern 94 and pieces from overflowing potting resin.

2. if shaping hole 96 is set, can when inserting pieces 2, carry out three-dimensional shaping to the end of pieces 2 in pieces jack 95 ends of metal pattern 94.

3. by make metal pattern 94 by mutually slidably several dividing bodies 94A, 94B constitute, pieces 2 is inserted in the pieces jack 95 of whole metal pattern 94 after, make these dividing bodies 94A, 94B slides mutually, pieces 2 can be kept, when taking out guide plate 100, pieces 2 confusions reigned can be prevented.

4. will utilize calandrias 81 such as heater and hot-air to add thermosetting molten mass 2A from outstanding pieces 2 base portions of the pieces jack 95 of metal pattern 94.

5. with metal pattern 93 matched moulds of metal pattern 94, make the molten mass of pieces 2 base portions form an integral body with resin on every side, can produce the toothbrush that partly constitutes by head with pieces 2 and connected handle with forming machine 90.

In the operation of utilizing toothbrush manufacturing installation 10 manufacturing toothbrushes, can adopt following distortion.

1. sleeve is not only 1, also can and with 2 with upper bush.For example, for 10 pieces jacks, can make 2 sleeves arranged side by side carry out 5 insert actions simultaneously with the footpath.

2. the hole section of sleeve also can be a non-circular hole.

3. the hole section of sleeve also can be an approximate shapes with respect to the pieces jack.

4. the hole section shape of pieces maintenance utensil can not be identical shaped with the hole section of substrate yet.

5. make vertical tube individualization more than 30, in each vertical tube 30, can have the hair of using of different length, can use same sleeve to implant the pieces of different length.

6. also can comprise the bonding of resin component element for back side potting resin portion.

7. also can adopt in vertical tube 30 restrainting in every way with the mao mao of well cutting taken out, insert pieces, plant the mode of hair by pressure ram from the rear end of sleeve.

8. also can adopt reel is made as the pieces of some with hair, insert in the reel, by pressure ram plant hair mode (comprise sleeve insert before cutting or insert two kinds of modes of back cutting).

The present embodiment has following effect.

(with claim 1,9 corresponding effects)

(1) each sleeve 60 corresponding with each pieces jack 55 is set, thus can be corresponding with section shape, the area of each pieces 2, with multiple direction (planting a mao angle) implantation pieces 2.

(2) insert in the pieces jack 55 by sleeve 60 guiding pieces 2, thus can in pieces jack 55, plant hair with very high packed density, thus can suppress potting resin 5 releases formation from pieces jack 55 overflow.

(3) from each sleeve 60 extruding pieces 2, open the insertion in batch of flat 9-182632 with the spy and compare, can make each pieces 2 determine the position, when pieces jack 55 inserts, can do trickle adjustment at each pieces jack 55, and then improve and insert precision, be suitable for the sort of toothbrush that requires multiple function.When using cutting with hair, compare with the reel mode, insert the device Miniaturizable.

(with claim 2,10 corresponding effects)

(4) the plant pore 4 of the pieces 2 in the sleeve 60 by substrate 3 inserted in the pieces jacks 55, substrate 3 is that soft resin is made, thus sleeve 60 with plant pore 4 and form excellent contact.Extruding pieces 2 is easy to improve packed density.Sleeve 60 seldom is damaged when contacting with substrate 3.

(5) can be suppressed at the generation that potting resin in the pore 45 leaks (overflow) of planting of substrate 3.

(with claim 3,11 corresponding effects)

(6) the cone-shaped mouthful 4A that inserts that plants the setting of pore 4 places at substrate 3 forms from the insertion guide plate of sleeve 60 extruding pieces 2, so can improve packed density when pieces jack 55 inserts.Qualification rate when pieces inserts is also very high, inserts density thereby can improve pieces, and can further suppress potting resin 5 and leaked by the pieces jack.

(7) in order to make toothbrush have the function of removing tartar and the hair end to be arrived between the tooth, tilting at substrate 3 plants pieces 2, and the present invention also is easy to tilt to plant hair.All or part of that can make pieces 2 inserts with any direction and plants.

(8) be located at cone-shaped introducing port 4 at the back side of substrate 3, can insert pieces 2 from the back side, compare during with the use reel, device constitutes very simple.

(with claim 4,12 corresponding effects)

(9) act synergistically by the shaping end 73 of pressure ram 71 ends and the shaping hole 56 of pieces jack 55,, not only can be shaped to shape arbitrarily for the end of pieces 2, and, also very easy for highly different pieces shapings.

During (10) with special two-way pole pair pieces end shaping of opening among the flat 7-194433, need plunger device (Plunger), device constitutes very complicated, and is opposite with it, and in the present invention, device constitutes very simple.

(with the corresponding effect of claim 5)

(11) in order to pay toothbrush, make pieces 2 tilt to plant to remove function (remove the tartar function and the hair end is arrived between tooth etc.).The present invention is easy to tilt and plants hair, and all or part of that can make pieces 2 tilts to insert with same direction or several different directions mutually and plant.

(12) though make sleeve 60 very compact, plant a mao state but still can form the complexity of using pieces 2 to tilt to intersect mutually.When from reel, sending continuously, plant hair with the intersection that tilts with the Maonans with the cant formula.

(with claim 6,13 corresponding effects)

(13) even pieces jack 55 tilts, still can be 60 insert from a direction from sleeve, owing to be located at the effect of the cone-shaped introducing port 4A that plants pore 4 places, can fine being inserted in the inclination pieces jack 55.

(14) when the hole of several pieces jacks 55 axle mutually each other during different directions, in the existing device of the position of each sleeve 60 being determined on the direction of principal axis of the hole of these pieces jacks 55, form complex appts by combinations such as servomotor and gears.In the existing device, keep the installation weight of sleeve to become very heavy, and insertion speed and insertion precision are also very poor.Opposite with it, among the present invention,, only insert from sleeve 60, so device constitutes simply, performance is high again from a direction for mutual several the different pieces jacks 55 of hole direction of principal axis.

(with claim 7,14 corresponding effects)

(15) with behind the pieces 2 insertion pieces jacks 55, keep utensil 40 tightly to fix by pieces.Therefore, when extracting sleeve 60, bar 71 after the insertion, when in manufacturing process, carrying, when the end face of pieces 2 is carried out melt process, insert pieces 2 backs when the potting resin 5 of the back side, can maintain pieces 2 really, not make pieces 2 confusions reigned.

(with the corresponding effect of claim 8)

(16) 3 of substrates are made of head 3A, when not having handle 3B, can improve the conveying of substrate 3.

Practicality on the industry

The present invention is pattern I and the pattern II in the fur planting method that does not use the horizontal line of putting down in writing in the prior art In, utilize simple apparatus structure, can the Set arbitrarily pieces plant a mao angle, and can will with high density Pieces inserts in the pieces jack, overflow can not take place near planting pore.

According to the present invention, the shaping of arbitrary shape can be carried out in the pieces end.

Claims (12)

1, a kind of manufacture method of brush is with restraint insertion pieces jack with the mao mao after, plants the brush manufacture method in resin material, it is characterized in that,

Have section shape and corresponding each sleeve of sectional area with the pieces jack,

To import in this sleeve with hair,

The pore of planting by preformed perforation shape on substrate is inserted the pieces in this sleeve respectively in the corresponding pieces jack by pressurizing unit.

2, according to the brush manufacture method of claim 1 record, it is characterized in that being provided with cone-shaped introducing port at the pore place of planting of aforesaid substrate, with pieces patchhole area than in the little pieces jack of sleeve hole area.

3, according to the brush manufacture methods of claim 1 or 2 records, it is characterized in that keeping the pieces jack end that has on the utensil at the pieces jack that has on the metal pattern or pieces, be provided with the shaping hole of above-mentioned pieces end shape being carried out shaping,

When the pieces in the sleeve being inserted the pieces jack, by above-mentioned shaping hole three-dimensional shaping is carried out in the pieces end simultaneously by the shaping end that is located at pressurizing unit end place.

4,, when it is characterized in that inserting above-mentioned pieces in the pieces jack, plant in the inclination mode with respect to the face that plants of resin material according to the brush manufacture methods of claim 1 or 2 records.

5, according to the brush manufacture methods of claim 1 or 2 records, it is characterized in that keeping having above-mentioned pieces jack on the utensil at metal pattern or pieces, the hole axle that makes sleeve is mutual inclination with the hole axle of pieces jack and intersects,

With the pieces in the sleeve, the cone-shaped introducing port of being planted pore by substrate or guide plate is inserted in the pieces jack by pressurizing unit.

6, according to the brush manufacture methods of claim 1 or 2 records, it is characterized in that keeping having above-mentioned pieces jack on the utensil at metal pattern or pieces, keep utensil in the hole of pieces jack axle crisscross cutting apart these metal patterns or pieces,

After inserting pieces in the pieces jack, make these metal patterns or pieces keep the dividing body of utensil on the hole axle is crisscross, to slide and fixing pieces.

7,, it is characterized in that aforesaid substrate partly constitutes, and does not have the handle part near having the part of planting pore and its according to the brush manufacture methods of claim 1 or 2 records.

8, a kind of manufacturing installation of brush, be after restrainting insertion pieces jack with the mao mao, plant the manufacturing installation of the brush in resin material, it is characterized in that, be provided with and import with the sleeve of hair with corresponding each of pieces jack section shape and sectional area and plant pore by preformed perforation shape on substrate the pieces in the sleeve is inserted pressurizing unit in each corresponding pieces jack respectively.

9, the brush manufacturing installation of putting down in writing according to Claim 8 is characterized in that being provided with pyramidal introducing port at the pore place of planting of aforesaid substrate, can be with pieces patchhole area than in the little pieces jack of sleeve hole area.

10, according to Claim 8 or the brush manufacturing installations of 9 records, it is characterized in that keeping the pieces jack end that has on the utensil, be provided with the shaping hole of above-mentioned pieces end shape being carried out shaping at the pieces jack that has on the metal pattern or pieces,

When inserting the pieces in the sleeve in the pieces jack, can carry out three-dimensional shaping to the end of pieces by above-mentioned shaping hole simultaneously by the shaping end that is located at pressurizing unit end place.

11, according to Claim 8 or the brush manufacturing installations of 9 records, it is characterized in that keeping having above-mentioned pieces jack on the utensil, make the hole axle of sleeve and the hole axle of pieces jack tilt to intersect mutually at metal pattern or pieces,

Can be by pressurizing unit with the pieces in the sleeve, the cone-shaped introducing port of planting pore from substrate or guide plate is inserted in the pieces jack.

12, according to Claim 8 or the brush manufacturing installations of 9 records, it is characterized in that keeping having above-mentioned pieces jack on the utensil, keep utensil to cut apart on these metal patterns or pieces in that the hole of pieces jack axle is crisscross at metal pattern or pieces,

After inserting pieces in the pieces jack, can make these metal patterns or pieces keep the dividing body of utensil on the hole axle is crisscross, to slide and fixing pieces.

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