TW201633961A - Method for manufacturing a brush or bristles and apparatus for the same - Google Patents

Abstract

According to a method and a device for producing a brush or a paint brush at least one bundle of bristles is secured to a mounting section of the brush without anchoring. For producing the bundles of bristles fibers which form a strand (30) are wound off from a bobbin (24) and are inserted into a bundle carrier (14). A bundle (16) is then cut off from the strand (30) by means of a cutting device (52). The bundle carrier can form the holding section of the brush or paint brush.

Description

Method for manufacturing a brush or bristles and apparatus for the same

The invention relates to a method for manufacturing a brush or a bristles, in particular a paint squeegee, such as a nail polish brush, by fixing at least one bristle bundle to the brush without anchors. Or the holding segment of the brush. Furthermore, the invention relates to a device for manufacturing a brush or a stylus whereby at least one tuft of bristles is anchored to the brush or bristles without anchoring.

The anchor is a metal sheet or a loop that locks the bundle of bent bristle to the retaining section of the brush or bristles and cuts into the edge of the corresponding opening.

The retaining section of the brush or bristles is the portion or component of the brush body or bristles for securing the at least one tuft of bristles. There are various options for this. First, the holding section is an integrally formed portion of the brush body or the brush body. Another solution is to implement the brush body or the brush body to be composed of several parts, first to manufacture a part similar to a plate body or a hose, and then to fix the bristle bundle or the bristle bundles to the board body or soft. The tube is attached to or fixed in the plate or hose. Next, connect this separate component to the rest of the brush body. There are also different options in this regard. First, the brush body or brush pen The remainder of the body may be made and also form a separate component, and then the component is attached to the bristled component, for example by adhesive bonding. As an alternative, the bristled component can also be subjected to an enamel coating process, whereby the remainder of the brush body is produced.

There are various ways to mount the bristle bundles to the retaining section without anchors. For example, a bundle of bristles is threaded into an opening containing a corresponding component of the retaining segment. For example, the ends of the bristles are joined to each other on the back side by thermoforming (ie, fusion). This section of the brush is then covered on the back side, for example by means of a lid or by injection molding. Another anchorless fixing method is to set the bristle bundle or the bristle bundles in the injection molding tool insert, and after the completion of the back connection of the bristle, the back end of the bristle bundle or the tufts is pressure-molded. Encapsulation process.

The tufts of bristles are removed from the crucible and the bristles are placed side by side under lateral prestressing (Vorspannung). The so-called tuft picker takes the separated tufts from the crucible.

The present invention provides a method for making a brush or bristles and an apparatus for making a brush or bristles, both of which have a simplified supply of bristles.

According to the method of the present invention, the at least one tuft of bristles is anchored to the retaining segment without anchors, and the at least one tuft of bristles to be secured to the brush or bristles is made in the following steps: a) providing a tuft carrier having a front side, an opposite back surface and at least one through opening connecting the front side and the back side, b) unrolling the bristle material from the at least one reel, the bristle material being arranged side by side a strand formed by the fibers, c) the non-scheduled bristle material is introduced into the tuft carrier in particular from the back side and in particular substantially perpendicular to the back side, and d) will extend into the tuft carrier The bristle material is severed to produce a bundle of bristles formed in the tuft carrier.

The method of the present invention does not remove the cut-to-length bristles from the crucible, but rather, when the brush or bristles are to be manufactured, the bristles are taken from at least one endless reel and the bristles are severed in the tuft carrier. That is, this operation of cutting the bristles occurs in the apparatus for manufacturing the brush. In this case, the fibers which are stranded on the reel respectively form a bristles. Of course, the fibers are preferably placed in parallel on the reel rather than being twisted together like a rope.

It is often desirable to create brushes or bristles that have different bristles and/or different bristles. To achieve this in the method of the present invention, several strands can be drawn from several reels simultaneously and the strands combined into one ply. The plied strand is then inserted into the opening of the tuft carrier and then cut.

In order to speed up the plugging speed, several strands can be taken from several reels at the same time and the strands can be inserted into several openings of the tuft carrier, and then cut again. Of course, several reels can also be combined into one unit here. But this change consists of the following strands: different openings that are inserted into the tuft carrier, and then It was cut off. The strands herein may also differ from one another, that is to say, having fibers which differ, for example in terms of color or cross section.

In addition, it is theoretically possible to wind different fibers on a reel.

For a brush or bristles (e.g., nail bristles) that apply, for example, paint to the ends of the front tufts, the tufts of bristles may thus be held on the retaining section or in the retaining section, such that The side view angle of the bristles or the top view of the bristles has an arcuate front end of the tuft. Especially for nail polish brushes, the application of the paint can be improved.

The strand can be unwound from the reel by at least one roller that grips the extracted section of the strand. The roller is driven, wherein it is of course also possible to provide a non-driven pair of rollers or a driven pair of rollers so that the strand is clamped between the rollers.

It is also possible to use several independent rollers for several reels to simultaneously expand several strands. Alternatively, several strands can be unrolled from several reels by a driven roller. The drum has, for example, a plurality of mutually separated sections, in the manner of providing a separator, which sections form a roller. In this case, each roller can correspond to one strand each.

The roller or rollers may optionally have a profiled side that engages the strand, the side changing the cross-sectional shape of the strand on the driven side, thereby changing the orientation of the fibers. That is, through the side of the profile, an intermediate stage of the final cross-sectional shape of the bundle of bristles can be formed, or the final cross-sectional shape of the bundle of bristles can be formed.

The or the strands do not have to reach the final orientation in the tuft carrier before being severed. More precisely, the tuft of bristles can be moved further into the tuft carrier in the front direction after cutting, for example by means of a similar stamp or a movable plate.

According to a variant, the tuft carrier can be an intermediate cassette that is reused in a device for making a brush or bristles, i.e., a box-like component. The intermediate jaw containing one or several tufts of bristles then continues to move in the apparatus. The or the cut-to-length bristles are, for example, pushed into a retaining section of a future brush or bristles and then secured to the retaining section. In this case, the retaining segment is, for example, a prefabricated component provided with at least one opening, after the tuft is fixed to the component, the component is attached to the remainder of the brush body or the brush body, such as Attached to the handle or handle, or embossed to form a handle or handle or the like. Alternatively, the intermediate jaw may be an injection molding tool insert that is at least used to make the portion of the brush body or brush body that forms the retaining segment, or the hair bundle is The intermediate jaw is pushed into the corresponding injection molding tool insert. In this insert, for example, the ends of the bristles can be connected to each other, for example in a fusion manner. Then, the tufts of bristles or the bundles of bristles are subjected to extrusion coating treatment from the back to form the entire brush body or bristles, or only a section of the brush body or bristles body is formed, and then formed by injection molding. The remaining portion is formed or the remaining portion is fixed to the segment.

According to another variant of the invention, the tuft carrier itself is the holding section of the brush or the bristles. Thus, as previously mentioned, the retaining segment is an integral part of the future brush body or brush body. Here, the retaining segment itself can integrally engage the brush body or the remainder of the bristle body and form a section of the brush body or the bristle body. This applies, for example, to the case where in a toothbrush, the entire brush body including the head, the neck and the handle are pre-formed, then plugged and possibly only further on the back of the head region. It is used for pressure injection molding. Alternatively, the retaining segment can be a pre-formed component, such as a sheet or sleeve (applicable to a paint stylus) provided with one or more apertures. When the plugged component is next attached to the brush body or the rest of the bristle body, for example, by extrusion molding or fixing to another body of the brush body or the brush body (for example, a handle) The through-hole component 遂 becomes an integral part of the future brush body or brush body.

If the bristle material is from the reel, the bristle material can be introduced into the tuft carrier until the bristle material protrudes out of the front side.

The bristle ends protruding from the back can then be secured to the retaining segment. One type of fixing is that after the end of the bristles protruding from the back passes through the holding section, it is fused from the back side. The material of the holding section may also be fused together, but this is not essential. However, since the materials of the bristles and the retaining segments are also likely to be different from each other, it is also possible to fuse only the ends of the bristles into a uniform section on the back side, so that the ends of the bristles cannot be pulled forward.

As previously mentioned, the retaining segment can be secured to the handle after the bristle bundle is secured to the retaining segment. The handle can be coupled to the tuft carrier, for example, via a snap connection.

Subsequent alternatives in the next five paragraphs, like the aforementioned features, may also be provided in the apparatus of the invention: if the brush body (the middle jaw or sheet as part of a complete brush body, or the brush body itself) has several For the openings, the openings can be loaded with bundles of bristles that are separated in the future by one or several reels.

When the hole is inserted, if the number of reels is less than the number of holes to be plugged, for example, with or without the introduction device between the roller and the brush body, the reel (or) the reel or the brush body is oriented in two directions. Move up to achieve relative motion of these components. For example, one reel is used to plug the holes one by one, and the strand is cut after the strand is introduced.

Of course, it is also possible to use, for example, a plurality of strands and reels having different fibers. For example, in order to load a bundle of hair in all the openings that need to be filled with yellow or white or black tufts, three reels are sufficient.

During the insertion of a plurality of apertured brush bodies, the reels can also be turned on or off when the reel strands are no longer needed. In addition, a plurality of strands may be sequentially introduced into the same opening in the introduction device, so that the different strands are sequentially positioned by the introduction device.

Of course, when it is necessary to form a large tuft in the brush, several strands may also be combined. For example, a 20-hole toothbrush may require 25 reels, where the ten reel strands are combined into five plies.

Furthermore, the invention relates more particularly to an apparatus for making a brush or bristles, and more particularly to an apparatus for carrying out the aforementioned method of the invention. The apparatus of the present invention has a tuft carrier that can be loaded with at least one tuft of bristles, the tuft carrier having a front side, an opposite back side and at least one through opening connecting the front side and the back side, wherein the apparatus comprises: at least one reel, The reel is wound with a plurality of strands of continuous fibers arranged side by side, a feeding device that unwinds the strand from at least one reel and directs the strand into the opening in the tuft carrier, cutting device, After the cutting device is introduced into the channel at the end of the strand, a tuft of bristles is separated from the strand, and a fixing device is used for fixing the bristle bundle to the holding section of the brush or the stylus, in particular in the form of a fusion device Device.

The feeding device can have at least one roller that catches the extracted section of the strand to extract the strand.

To expand several strands from several reels, several independent scroll wheels can be set. As previously mentioned, the rollers may also be formed by a plurality of segments that are separated from each other on a drum. Each roller corresponds to one strand of each reel.

As with the previous method, it is also possible here to provide a profiled side on the roller or rollers to change the cross-sectional profile of the strand on the driven side.

In order to introduce the fibers into the brush body more easily, or for example to organize a plurality of strands of fibers, a guide having at least one introduction channel may be provided. Into the device. The end of the strand is first introduced into the introduction channel, and then the end of the strand is passed through the introduction channel. The end of the introduction channel on the opposite side should be disposed opposite the back outlet of the opening on the tuft carrier, wherein the tuft carrier and the introduction device can also be separated by a minimum distance.

The plurality of reels can also be aligned or merged with each other by the introduction device. The strands of the plurality of reels run through the introduction device, and (or) a plurality of strands are combined into one strand on the output side in the introduction device.

It is also possible to combine several strands into a plied strand in the brush body, whether the brush body is an intermediate weir or is already an integral part of the brush body or the brush body. For this purpose, the opening or possibly the introduction device has a cross section which is different from the output side at the opening or the inlet side outlet of the inlet channel. For example, the channel or the opening may be tapered in a funnel shape, or a plurality of sub-channels may be provided on the input side, and the sub-channels are then merged into a common channel on the output side. A further possibility is that on the input side, for example, several subsections are formed in a manner similar to a clover, and the subsections are separated from each other piece by piece, and the opening or the passage has a completely different cross-sectional shape on the output side. .

In general, the introduction channel or the opening may have an outlet cross-section different from the front side on the back side to facilitate easier introduction of the or the strands and/or to change the cross-section of the strands or strands. As previously mentioned, the introduction channel or the opening can be tapered from the back outlet to the front outlet, and/or the front outlet and the back outlet have different cross-sectional shapes. "Cross-sectional shape" means that the shape itself is another shape. That is, it is not only changed from, for example, a small circle to a large circle or a small rectangle to a large rectangle, but the introduction passage or the opening is changed into a front oval or rectangular outlet, for example, from a circular outlet on the back side. The term "different cross-section" includes both variations in cross-sectional shape and changes in cross-sectional area only, that is, from a small rectangle to a large rectangle.

The apparatus of the present invention may also have a plurality of spools on which are wound a plurality of strands and the strands are combined into a plied or introduced plurality of separate openings in the tuft carrier.

To set the geometry of the bristle bundle in a future brush or future bristles, an orientation tool can be provided. The shape of the at least one bristle bundle is determined by the orientation tool, wherein the orientation tool is disposed on a front side of the holding segment. The orienting tool may, for example, be provided with channels or openings that are inclined and/or have a particular cross-sectional shape (arc, rectangular or the like). The or the tufts of bristles are inserted into the or each of the channels or openings to maintain a particular shape, and the bristles are then secured to the retaining segments, such as by fusing or embossing the bristles on the back side. This example is not exhaustive.

As described above in connection with the method of the present invention, the tuft carrier can be an intermediate cartridge that is reused in the apparatus, the intermediate tuft is loaded with the at least one cut-length bristle tuft, and the at least one bristles The bundle is in particular pushed into the holding section by the intermediate jaw and is then fixed to the holding section. As previously described in connection with the method, the intermediate file may alternatively form an injection molding tool insert, or the brush or the brush The tuft is further pushed into the forming tool insert by the intermediate weir and finally subjected to autoclave encapsulation.

In this regard, an alternative embodiment is that the tuft carrier itself is the holding segment of the brush or the bristles, ie as part of a future brush or bristles.

The apparatus can be configured such that the feeding device pushes the separated bundle of bristles further into the retaining segment such that the tuft of bristles and the strands do not reach the bristle bundle and the or The final position of the shares.

It should be emphasized that the aforementioned features of the method are also features of the device and vice versa.

The foregoing features, whether from the same sentence or from the same paragraph, may be arbitrarily combined with other features from other sentences or paragraphs to form further modifications of the present invention.

Finally, the present invention relates to a nail polish bristles having a hose-shaped tuft carrier forming a portion of the bristles, the tuft carrier having a front side and a back side, the front side and the back side being transmitted through a single The through openings are connected to each other. The cross-section of the front exit of the opening is different from the cross-section of the back outlet of the opening. The bristle bundle is curved in a side view angle of the bristle bundle or a plan view angle of the end of the bristle bundle.

The opening in the hose-shaped tuft carrier can be tapered from the back outlet to the front outlet and/or have a different cross-sectional shape. The shape of the front outlet or the opening is, for example, oval or curved in cross section.

10‧‧‧Brusher body

12‧‧‧Hands

14‧‧‧hair bundle carrier

16‧‧‧Brushing

18‧‧‧Opening

20‧‧‧Export

22‧‧‧ positive

24‧‧‧ Endless scroll

26‧‧‧ Endless scroll

28‧‧‧ Endless scroll

30‧‧‧ shares

32‧‧‧ shares

34‧‧‧ shares

36‧‧‧Roller

36’‧‧‧ pairs of rollers

38‧‧‧Roller

40‧‧‧Roller

42‧‧‧Induction device

44‧‧‧ Joint Stock

46‧‧‧Importing channel

48‧‧‧Roller

50‧‧‧ partition wall

52‧‧‧ Cutting device

54‧‧‧Put

56‧‧ ‧block

58‧‧‧Orientation tools

60‧‧‧ openings

62‧‧‧Fixed devices

64‧‧‧Block

66‧‧‧ brush body

68‧‧‧ head

70‧‧‧Intermediate 匣, hair bundle carrier

72‧‧‧ openings

74‧‧‧Opening

76‧‧‧ hole

78‧‧‧ hole

80‧‧‧ spacer

82‧‧‧Introduction of slopes

84‧‧‧ Area shape

86‧‧‧ Area shape

90‧‧‧ Injection molding tool inserts

92‧‧‧ Injection molding half mold

94‧‧‧分模穴

96‧‧‧ upper mold

98‧‧‧ cavity

To further understand the features and advantages of the present invention, reference is made to the following description and drawings. In the drawings: Fig. 1 is a paint brush of the present invention made by the method of the present invention and the apparatus of the present invention, particularly a nail polish brush, in a disassembled state; and Fig. 2 is a bristles as shown in Fig. 1. Pen, in an assembled state; Fig. 3 is a perspective bottom view of the stylus as in Fig. 2; Fig. 4 is a schematic view of a portion of the apparatus of the present invention according to an embodiment; and Fig. 4a is for Fig. 4 An alternative wheel of the apparatus; FIG. 5 is a variation of the apparatus of FIG. 4; FIG. 6 is a perspective bottom view of a portion of the apparatus of the present invention according to another embodiment; FIG. 7 is a schematic view of the apparatus according to the present invention; The top end of the paint stylus pen made according to the present invention; Fig. 8 is a view showing the change of the top end of the nail polish brush pen according to the seventh embodiment of the present invention; and Fig. 9 is a schematic view showing a part of the change of the apparatus of the present invention. Apparatus using the method of the invention according to an embodiment to make a brush; Figure 10 is a cross-sectional view of another portion of the apparatus according to the present invention in the region of the brush body; Figure 11 is a plan view of the brush body of the method of the present invention applicable to the apparatus of the present invention; A cross-sectional view of the back end of the bristle ends being fused; Fig. 13 is a brush body made by the method of the present invention and made by the apparatus of the present invention; and Fig. 14 is an injection molding apparatus applicable to the apparatus of the present invention. Tool insert; and Figure 15 is a two-part injection molding tool applicable to the apparatus of the present invention and the method of the present invention.

1 to 3 show a paint brush, in particular a nail polish brush, which has a two-part brush body 10, the two-part brush body 10 including a handle 12 and independent of the handle The resulting tuft carrier 14, wherein the tuft carrier is a sleeve-shaped or hose-shaped plastic member. A bristle bundle 16 is fixed to the tuft carrier 14.

The tuft carrier 14 can be connected to the handle 12 via a snap-fit connection. In addition, it is also possible, for example, to provide an adhesive connection or a soldered connection for further fastening, but this is not essential.

As shown in Fig. 3, the bristle bundle 16 has a particular cross-sectional shape, see the free end of the bristle bundle 16 in Figure 3. More specifically, the tuft of bristles 16 has an arcuate cross-sectional shape to improve the application of the coating.

For this purpose, the tuft carrier 14 is provided with, for example, an opening 18 in a correspondingly curved shape. More specifically, the hose-shaped tuft carrier 14 has a through opening 18, as will be explained below, through which the bristle bundle 16 extends and is fixed at the back.

At least the outlet 20 of the opening 18 in the front side 22 of the tuft carrier 14 (see Fig. 3) is curved to collectively define the contour of the bristle bundle 16. The rear outlet of the opening 18 is shown in Figure 1, which may be curved or may have a different cross-section than the front outlet 20. In Fig. 1, the back outlet is oval.

It is not necessary that the opening 18 defines the future shape of the cross-sectional profile of the bristle bundle 16 before the bristle bundle 16 is secured to the tuft carrier 14. It is also possible to bond, weld or smear the ends of the bristles in the tuft carrier 16 and then to determine the contour by means of such a fixing method.

Figures 1 and 2 show the change in the free end profile of the bristle bundle 16 in broken lines. More precisely, as an alternative or in addition, the bristle bundle 16 can be shaped in such a way that the bristle bundle runs in a curved manner in a side view, that is to say the extent to which the intermediate bristles protrude from the tuft carrier 14 More than the bristles on the side.

As described above, with respect to the front exit and the rear exit, the cross-section of the opening 18 in the tuft carrier 14 may be different. Opening 18 such as It may be tapered at one end and/or have a different cross-sectional shape, such as the oval-shaped back outlet in Figure 1 and the curved front outlet in Figure 3 (for illustrative purposes only), any other geometry may be used. shape. Here, it depends on the desired contour of the tuft of bristles 16 in some cases.

Figure 4 is a schematic representation of how the apparatus for making the bristles can be implemented. The bristles are not taken out of the crucible, and the bristles in the crucible are cut by a fixed length, but are manufactured using endless reels 24 to 28 on which the strands 30 to 34 of the fibers arranged side by side are wound. .

These fibers then form a single individual bristles of the future. This will be explained in more detail below.

Each of the strands 30 to 34 differs from each other in terms of color, number of fibers, and/or fiber diameter.

For example, the fibers of the strands 30 can be black and have a diameter of 0.1 mm, while the fibers of the strands 32 are red and have a diameter of 0.05 mm, and the fibers of the strands 34 can still be black with a diameter of 0.1 mm.

The strands 30 to 34 are unwound from the spools 24 to 28, specifically for example: the rollers 36 to 38 (and correspondingly disposed pairs of rollers, which are not shown here for simplicity) grasp the corresponding strands 30 Up to 34 and the shares 30 to 34 will be launched.

The embodiment shown in Fig. 4 should not be construed as limiting, in which the apparatus for manufacturing a brush has a guide device 42 shown in simplified form between the rollers 36 to 40 and the tuft carrier 14, And the strands 30 to 34 are combined into a plied 44 in the introduction device 42. To this end, The introduction device has an introduction channel 46 having a back outlet (as seen in Figure 4) and an opposite outlet on the front side. The outlets have different cross sections. In particular, the cross-section of the back outlet is larger than the front exit. In addition, other cross-sectional shapes can be realized on the back side and the front side.

The introduction channel 46 can also be constructed in such a way that the introduction channel 46 has a channel section on the front side which divides several sub-channels towards the back side. A strand 30 to 34 can then be introduced in this aliquot, respectively, and inside the induction device 42, these strands 30 to 34 are then merged together when they reach the common channel segment. An advantage of this approach is that the orientation of the strands 30 to 34 can be maintained for a long period of time, thereby ensuring as much as possible that the individual fibers of the strands 30 to 34 always have the same orientation and positioning within the pli 44.

The variation of the rollers 36 to 40 is shown in Fig. 4a because the driven drum 48 is here divided by the sheet-like partition wall 50 into a number of segments defining the rollers 36 to 40. A shared drive can thus be used and, in addition, the strands 30 to 34 are stably positioned before entering the induction device 42.

After the introduction of the device 42, the ply 44 extends from the back into the tuft carrier 14 and forwards through the tuft carrier 14, such that the front end of the strand 44 projects out of the tuft carrier 14.

After the strands 44 have passed through the tuft carrier 14 to a sufficient extent, the strands 14 are severed by the cutting device 52 on the back of the tuft carrier 14, thereby forming a tuft of bristles 16.

The tuft 16 is then continuously transported inside the device and is pushed by the pusher 54 (which is part of the feed) The tuft carrier 14 is pushed deeply until the front end of the bristle bundle 16 abuts against the stop 56.

In the next step, the ends of the respective back bristles can be fused by means of a thermal punch (heißer Stempel) or simply by heating, such that the ends of the back bristles form a similar layer or mass within the tuft carrier 14.

As shown in Fig. 4, the stop 56 can be profiliered to collectively determine the tip shape of the tuft. In this case, the stop is part of a so-called orientation tool for the tuft of bristles 16.

Alternatively, the orientation tool can also be embodied as a plate-shaped body provided with an opening, wherein the opening cross-section and the orientation of the opening determine the orientation and cross-section of the bundle of bristles 16.

To this end, the orientation tool can be implemented, for example, similar to the orientation tool 58 of FIG. 10, the opening 60 of the orientation tool 58 being inclined and having an elongated profile in cross section. However, this is only an example.

Of course, a single tuft may also have other shapes, see the toothbrush in Figure 13. These shapes and similar shapes can also be achieved on the bristles by means of corresponding stops and orientation tools.

In the embodiment of the apparatus, as shown in Fig. 5, only one strand 30 is unfolded from a reel 24, wherein the implementation of the apparatus in other aspects and the corresponding functions are as shown in Fig. 4, so the relevant content can be referred to Fig. 4. Accordingly, only one roller 36 and the counter roller 36' of the roller 36 are required.

As shown in Fig. 6, the sides of the rollers 36, 36' can be shaped, for example, as viewed in cross section, the sides of a roller are convex and the sides of a roller are concave. Through this pattern, the cross-section of the strand 30 after the rollers 30, 36' in the direction of movement is correspondingly shaped so as to be more easily introduced into the corresponding opening in the tuft carrier 14.

The contour of the strand 30 after the rollers 36, 36' need not be the final contour of the future bristle bundle 16, but may be an intermediate shape, as compared to the cross section of the strand 30 prior to the rollers 36, 36'. The middle shape is closer to the future shape.

The embodiment of Fig. 6 does not have an introduction device 42, but this is not essential.

Figures 7 and 8 show the different variations achieved by the different bristles in the bristles. According to Fig. 7, the outer bristles in the total tufts 16 may be thinner than the intermediate bristles from the strands 32, or the color is different from the intermediate bristles. In the embodiment as in Fig. 8, the split beams are alternately arranged at a higher frequency.

Figure 7 symbolically shows the fixture 62 for securing the tuft of bristles 16 to the retaining segments, here secured to the tuft carrier 14. The fixing device 62 is here embodied as a thermal punch which is pressed into the opening 18 from the back side, so that the ends of the melted bristles form a certain mass 64, that is to say that all the tufts are connected together so that they cannot be The tuft carrier is pulled out before.

Of course, the feed device formed by the rollers 36 to 40 can also employ other embodiments.

In all embodiments, the or the strands are preferably introduced into the bristle carrier perpendicular to the back side of the bristle carrier.

In the embodiment as shown in Figures 1 to 8, the tuft carrier 14 forms a retaining section of the bristle body and is a separately fabricated component. Alternatively, the following embodiment may be employed: The brush body or the brush body are prefabricated parts for the insertion of the hair bundle. In this case, the brush body section in the area of the tuft is the holding section.

The aforementioned method of producing a brush bundle by means of one or several reels is also applied to the following embodiment of the device, so that the relevant device produces a tuft of bristles by extracting one or several strands from one or several reels. And there is no need to mention it separately.

In the embodiment of Fig. 9, a toothbrush is inserted into the aperture, and as in all embodiments, the toothbrush also has a bundle of bristles 16 that are anchored to the toothbrush without anchors. The brush body 66 has a handle, a neck and a head 68 provided with a plurality of openings 18. The head 68 here forms a holding section for the tufts 16 of bristles. This is also the back plug hole.

Unlike the foregoing variations, the tuft carrier in the present embodiment is a so-called intermediate cassette 70 that is reused in the apparatus, and the strands from the or the reels 24 to 28 are inserted into the crucible 70, and the strands are inserted from the back side. It is cut by the cutting device 32 to form a tuft.

The intermediate crucible 70 can have one or several openings 72. The pattern of the intermediate crucible 70 is preferably the same as that of the retaining section, which at the same time forms a brush body.

Thereby, the middle bundle 70 is filled with the tufts 16 . Therein, one or several reels 24 to 28 may introduce the strands simultaneously or sequentially into different or identical openings in the intermediate crucible. This can be changed arbitrarily.

Figure 9 shows only a portion of the middle turn of the tuft carrier form, in practice the width of the corresponding plate is substantially the same as the head 68.

After the entire middle cymbal 70 is loaded with the tufts 16, the intermediate cymbal 70 is moved toward the head 68, or the head is moved toward the intermediate cymbal, and then, for example, through a corresponding push rod 54 (the pusher is the feeding device) The components of the bristle bundle 16 are pushed one by one or together from the middle to the opposite opening in the head 68.

Generally speaking: if the brush body (the middle jaw or the sheet is a component of the complete brush body, or the brush body itself) has several openings, as shown in Fig. 9, the one or several reels can be used for the Wait for the opening to fit the bundle of bristles that will be separated in the future.

When the hole is inserted, if the number of reels is less than the number of holes to be plugged, the reel/the reels or the brush body are placed between the roller and the brush body in two directions (for example, with or without the introduction device 42). Move up to achieve relative motion of these components. For example, one reel is used to plug the holes one by one, and the strand is cut after the strand is introduced.

Of course, it is also possible to use, for example, a plurality of strands and reels having different fibers. For example, in order to load a bundle of hair in all the openings that need to be filled with yellow or white or black tufts, three reels are sufficient, as the case may be.

During the insertion of a plurality of apertured brush bodies, the reels can also be turned on or off when the reel strands are no longer needed. In addition, a plurality of strands may be sequentially introduced into the same opening in the introduction device, so that the different strands are sequentially positioned by the introduction device.

Of course, when it is necessary to form a large tuft in the brush, several strands may also be combined. For example: A 20-hole toothbrush, for example, may require 25 reels, where the strands from the ten reels are combined into five plies.

The orientation tool 58 abuts the front side of the retaining section directly or with a slight spacing and is provided with corresponding channels or openings 74 for the tufts 16 to extend. In this case, the cross-sectional shape and orientation of the apertures 74 can still define the orientation and contour of the bristle bundles 16 in the retention section.

A stop 56 that is shaped as appropriate may also be provided on the front side.

After pushing in, the back ends of the tufts 16 are still secured together, as described above.

Figure 10 shows by way of example how the orientation tool 58 defines the shape of the tuft 16 to be pushed in the future. Here, it is necessary to place a bundle of bristles into the head 68, which is inclined on the one hand and has a long strip shape on the other hand. To this end, the two tufts of bristles are combined inside the holding section (here the head 68) such that the holding section simultaneously forms an introduction device such as that described above in connection with FIG.

The head 68 has an opening 18 having a front face (lower in Fig. 10) having a single outlet having a special cross section surface. The opening divides two sub-holes 76 and 78 on the back side, the equally spaced holes 76 and 78 being separated by a spacer 80. That is, the opening 18 is outletd by two smaller partial holes 76 and 78 having different cross sections.

Each of the sub-holes 76 and 78, or each of the respective outlets, is provided in one piece, and a single strand can be directly introduced into the sub-holes 76 and 78. Then cut off the strands from the back, please refer to the previous figure for details. The introduction ramp 82 is used to fold the combined tufts of bristles, i.e., to introduce them into the angled apertures 60.

Alternatively, the apparatus shown in Fig. 10 may not introduce the strands directly into the retaining section (here the head 68), but cut the bristle bundle in the middle jaw as shown in Fig. 9. The bristle bundles are then plugged into the retaining section and secured to the retaining section.

As indicated above with respect to the introduction means 42 or the opening 18 in the Figure 10, the exit cross section of the bristles or strands inserted into the back side is different from the introduction passage or opening of the front exit cross section, in order to be able to Easy to import from the back, on the other hand to achieve the front of the tuft, or at least support the shape.

Figure 11 shows the above variation of the exit cross section of the front and back sides with the toothbrush head 68, wherein the corresponding variations can also be applied to the tuft carrier 70 (e.g., intermediate weir) or the introduction device 42. Each of the openings 18 is shown in Fig. 11 as two lines, the thick line symbolizing the front exit cross section and the thin line symbolizing the exit cross section of the corresponding opening 18 at the back side. If the thick line intersects the outer thin line outward, the back outlet can also be defined by the section of the thick line.

Figure 12 symbolically shows how a single or several tufts of bristles 16 are anchored in the tuft carrier 14. In the present embodiment, the agglomerates 64 formed when the ends of the bristles are molten are located within corresponding openings in the tuft carrier 14. Alternatively, the molten material may also form a layer on the back side.

Further to the right end of Fig. 12, the outlet of the opening 18 has a different cross section on the front and back sides, where the opening 18 is tapered from the back to the front. Furthermore, the area centers 84, 86 of the exit cross sections of the front and back sides are laterally offset, see the axis in the figure. Of course, the corresponding opening in the introduction channel 46 or the intermediate jaw may also have a corresponding shape.

Figure 13 shows which different cross-sections, orientations, and geometries each tuft 16 can have. This partial illustration is not complete and is not particularly limited to the toothbrush head illustrated in the figures. More specifically, such bristle bundles or similar tufts of bristles can also be applied to bristles or other brushes.

Figure 14 shows a tuft carrier which, if desired, can also be embodied as an intermediate weir and is an injection molding tool insert 90.

An opening 18 is formed in the injection molding tool insert 90, and the roller can direct the strands directly into the openings, i.e., with or without the introduction device 42. Alternatively, the cut-to-length tufts of bristles may be provided by the intermediate weir shown in Figure 9, and the bundles of bristles are then pushed into the apertures 18.

Finally, the injection molding tool insert 90 has a bundle of bristles protruding from the back side, and then, for example, the bristles are joined at the back side by fusion.

The injection molding tool insert 90 to which the bristle bundle has been attached is then inserted into the injection molding mold half 92 shown in Fig. 15, and in the illustrated example, which should not be construed as limiting, the injection molding mold half 92 is also A partial cavity 94 for the manufacture of a brush handle is implemented. The corresponding upper mold half 96 can also have a partial cavity.

In the present embodiment, in the case of forming a brush body, the back end of the bristle bundle is subjected to an injection molding encapsulation process, and the brush body forms a holding section in the tuft region.

As an alternative, the bristles 16 can also be fastened to the previously produced separate component (more precisely, the flaky tuft carrier 14) for this purpose, after which the tuft carrier 14 is inserted into the injection molding tool insert 90. The respective cavity 98, and then the tuft carrier 14 is subjected to a compression molding process in the case where the remainder of the brush body is formed.

Of course, further variations are contemplated within the scope of the invention in light of the foregoing embodiments.

14‧‧‧hair bundle carrier

16‧‧‧Brushing

24‧‧‧ Endless scroll

30‧‧‧ shares

36‧‧‧Roller

36’‧‧‧ pairs of rollers

42‧‧‧Induction device

52‧‧‧ Cutting device

Claims (23)

A method for making a brush or a bristles, in particular a paint bristles, by attaching at least one tuft of bristles (16) to a holding section of the brush or bristles without anchoring. Wherein the at least one bristle bundle (16) is anchored to the retaining segment without anchors, and the at least one bristle bundle (16) to be secured to the brush or the bristles is made in the following steps: a) providing a tuft carrier (14) The tuft carrier (14) has a front surface, an opposite back surface, and at least one through opening (18) connecting the front surface and the back surface, b) unrolling bristles from at least one of the reels (24 to 28) a material, the bristle material being a strand (30 to 34) formed by a plurality of fibers arranged side by side, c) the uncut length of the bristle material being particularly from the back side and particularly substantially perpendicular to the back side The tuft carrier (14) is introduced, and d) finally, the bristle material extending into the tuft carrier (14) is severed to produce a tuft of bristles (16) formed in the tuft carrier. The method of claim 1, wherein: the at least one The spool (24 to 28) is an endless spool on which a strand (30 to 34) of a plurality of continuous fibers is wound. The method of any of the preceding claims, wherein: a plurality of shares (30 to 34) are simultaneously drawn from a plurality of reels (24 to 28) and the plurality of shares (30 to 34) are combined into one plied (44) Inserting the ply (44) into the opening (18) of the tuft carrier (14), and then cutting again, in particular, wherein the strands (30 to 28) are located on the reels (24 to 28) 34) Different from each other. The method of any of the preceding claims, wherein: a plurality of strands (30 to 34) are simultaneously taken from a plurality of reels (24 to 28) and the plurality of strands (30 to 34) are inserted into the tuft carrier The plurality of openings (18) of (14) are then severed, in particular, wherein the strands on the reels (24 to 28) are different from one another. The method of any of the preceding claims, wherein the tuft of bristles (16) is retained on the holding section or in the holding section in such a manner as to be at the side angle of the bristles or in the bristles Viewed from a top view, the tuft of bristles has an arcuate front end of the tuft. The method of any of the preceding claims, wherein: from the reel (24 to at least one of the rollers (36 to 40) of the extracted section of the strand (30 to 34, 44) 28) extracting the at least one strand (30 to 34, 44), in particular, using a plurality of independent rollers (36 to 40) to expand a plurality of strands (30 to 34), or by A plurality of mutually separated segments on a drum form the rollers, wherein, for example, each roller corresponds to a single strand of a reel. The method of any of the preceding claims, wherein, after step d), the bundle of bristles (16) that has been severed is passed further through the tuft carrier (14) in a frontal direction. The method of any of the preceding claims, wherein the tuft carrier (14) is an intermediate cassette (50) that is reused in a device for manufacturing the brush or the bristles, for the middle The crucible (50) is fitted with the at least one cut-to-length bristle bundle (16), and the at least one bristle bundle (16) is specifically pushed into the retaining section by the intermediate condyle (50) and then fixed to The retaining segment, or wherein the intermediate weir (50) is an injection molding tool insert (90), the injection molding tool insert (90) is used at least to manufacture the brush body or the bristle body to form the retaining segment The portion, or wherein the at least one bristle bundle (16) is pushed into the injection molding tool insert (90) by the intermediate crucible (50). The method of any one of claims 1 to 7, wherein the tuft carrier (14) itself is the holding segment of the brush or bristles, wherein the retaining segment is associated with the brush body or the brush body The remainder of the unit is integrally joined to a section, or a pre-made separate component that is part of the future body of the brush or bristles. The method of claim 9, wherein: the brush material The material is introduced into the tuft carrier (14) until the bristle material protrudes from the front side. The method of any of claims 9 and 10, wherein: the ends of the bristles protruding from the back are fixed to the retaining section, in particular, the ends of the bristles protruding from the back pass through the retaining After the segments, the ends of the bristles are fused from the back. The method of any one of claims 9 to 11, wherein after the bristle bundle (16) is fixed to the retaining segment, the retaining segment is fixed to a handle (12), in particular, wherein the handle ( 12) A snap connection is provided between the tuft carrier (14). An apparatus for making a brush or a bristles, and more particularly for an apparatus for carrying out the method of any of the preceding claims, characterized in that it is provided with at least one tuft of bristles (16) a tuft carrier (14) having a front surface, an opposite back surface, and at least one through opening (18) connecting the front surface and the back surface, wherein the apparatus comprises: at least one reel (24) And 28), the reel (24 to 28) is wound with a plurality of (30 to 34) formed by a plurality of continuous fibers arranged side by side, a feeding device which is unfolded from at least one reel (24 to 28) The strand (30 to 34) and introducing the strand (30 to 34) into the opening in the tuft carrier, a cutting device (52) for separating the bristle bundle (16) from the strand (30 to 34) after the end of the strand is introduced into the opening (18), and a fixing device (62) for fixing the tuft of bristles (16) to a holding section of the brush or the bristles, in particular a fixing means (62) in the form of a fusing device. The apparatus of claim 13, wherein: the feeding device comprises: at least one roller (36 to 40) that chucks the extracted section of the strand (30 to 34) to extract the Strands (30 to 34), in particular, a plurality of independent rollers (36 to 40) for unfolding a plurality of strands (30 to 34), or alternatively formed by a plurality of mutually separated sections on a drum (48) (36 to 40), wherein, for example, each of the rollers (36 to 40) corresponds to one (30 to 34) of one reel (24 to 28). The apparatus of any of claims 13 and 14, wherein: an introduction device (42) having at least one introduction passage (46) is provided between the spool (24 to 28) and the tuft carrier (14). First, the end of the strand (30 to 34) is introduced into the introduction channel (46), and wherein the end of the introduction channel is opposite to the back outlet of the opening (18) on the tuft carrier (14) In particular, several strands (30 to 34) of several reels (24 to 28) run through the introduction The device (42), and/or in particular, a plurality of strands (30 to 34) merge into a strand (44) on the output side in the introduction device (42). The method of any one of claims 13 to 15, wherein the at least one introduction channel (46) or the opening (18) has a cross section on the back side different from the outlet of the front surface, in particular The inlet channel (46) or the opening (18) is tapered from the back outlet to the front outlet, and/or the front outlet and the back outlet have different cross-sectional shapes. The apparatus of any one of claims 13 to 16, wherein: a plurality of reels (24 to 28) are provided, and the reels (24 to 28) are wound with a plurality of strands (30 to 34), the stocks (30 to 34) are combined into a plied (44) or a plurality of individual openings (18) introduced into the tuft carrier (14). The apparatus of any one of claims 13 to 17, wherein: a pointing tool (58) is provided, by which the shape of the at least one bristle bundle (16) is determined, wherein the orientation tool ( 58) is provided on the front side of the holding section. The apparatus of any one of claims 13 to 18, wherein: the tuft carrier (14) is an intermediate cassette (50) that is reused in the apparatus, the intermediate cassette (50) being loaded with the at least a set of bristles (16) cut by a fixed length, and the at least one tuft (16) is specifically pushed into the retaining section by the intermediate cymbal (50) and then fixed In the holding section, or the intermediate file (50) is an injection molding tool insert (90), and the injection molding tool insert (90) is used at least for manufacturing the brush body or the brush body to form the holding section. Alternatively, the at least one bristle bundle (16) can be pushed into the injection molding tool insert (90) by the intermediate weir (50). The apparatus of any one of claims 13 to 18, wherein: the tuft carrier (14) itself is the holding section of the brush or bristles, wherein the holding section is the brush body or the brush pen The remainder of the body is integrally joined to a section, or a pre-made separate component that is part of the future tuft carrier (14). The device of claim 20, wherein the device is configured such that the feeding device pushes the separated bundle of bristles further into the holding segment. A nail polish bristles having a hose-shaped tuft carrier (14) forming a portion of the bristles, the tuft carrier (14) having a front side and a back side, the front side and the back side being through a single through opening The holes (18) are connected to each other, wherein the cross section of the front exit of the opening (18) is different from the cross section of the back outlet of the opening (18), and wherein a bristles are fixed on the tuft carrier The tuft has an arcuate tuft end as viewed from a side view angle of the tuft of bristles or a top view angle of the end of the tuft of bristles (16). The nail polish brush of claim 22, wherein the opening (18) is tapered toward the front outlet by the back outlet, and/or the front outlet and the rear outlet have different cross-sectional shapes Wherein the back outlet and/or the front outlet and/or the opening (18) have an oval or curved cross section.