TWI675632B - Method for manufacturing a brush or bristles and apparatus for the same - Google Patents

Abstract

A method and equipment for manufacturing a brush or a bristled pen are provided as follows: at least one bristle bundle is fixed to a holding section of the brush without anchors. In order to manufacture the bristle bundles, a plurality of fibers forming a strand (30) are unwound from a reel (24), and the fibers are introduced into a tuft carrier (14). Then, the hair bundle (16) is separated from the strand (30) by a cutting device (52). The tuft carrier may form the holding section of the brush or the brush.

Description

Method for manufacturing brushes or bristles and equipment for the method

The present invention relates to a method for manufacturing a brush or a brush. The brush, especially a paint brush (Lackpinsel), such as a nail polish brush (Nagellackpinsel), is fixed to the brush by anchoring at least one bristle bundle Or the holding segment of a brush. In addition, the present invention relates to an apparatus for manufacturing a brush or a brush, whereby at least one tuft of bristles is anchored to the brush or the brush.

The anchor is a metal sheet or a rope collar. The anchor locks the bent bristle bundle to the holding section of the brush or brush and cuts into the edge of the corresponding opening.

The holding section of the brush or the brush is a part or component of the brush body or the brush body for fixing the at least one bristle bundle. Various schemes exist for this purpose. First, the holding section is an integrally formed part 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 make some kind of plate or hose-like component, and then fix the bristle bundle or the bristle bundle to the plate or soft On the tube or in the plate or hose. This separate part is then connected to the rest of the brush body. There are also different options in this regard. First, the brush body or brush The rest of the body may be made and also formed as a separate part, and the part is then connected, for example, in an adhesive manner to the part to which the bristles have been mounted. Alternatively, the bristled component may be subjected to umspritzen, and then, the rest of the brush body is manufactured.

There are various ways to install the bristle bundles to the holding section without anchors. For example, tufts of bristles are threaded into the openings of the corresponding parts containing the holding section. For example, the ends of the bristles are connected to each other on the back surface in a thermoforming (ie, fusion) manner. This section of the brush is then covered on the back, for example with a lid or by injection molding. Another non-anchor fixing method is to set the bristle bundle or the bristle bundles in the injection molding tool insert, and after the back side connection of the bristles is completed, the bristle bundles or the back ends of the bristle bundles are pressure-molded. Encapsulation processing.

The tufts of bristles are taken out of the box, and the bristles are placed side by side in the box under a lateral prestress. The so-called hair tuft extractor removes the separated hair tufts from this box.

The invention provides a method for manufacturing a brush or a brush, and an apparatus for manufacturing a brush or a brush. The bristles supply of both is simplified.

According to the method of the present invention, the at least one bristle bundle is anchored to the holding section without anchoring, and the at least one bristle bundle to be fixed to the brush or bristles is manufactured in the following steps: a) providing a tuft carrier, the tuft carrier having a front surface, an opposite back surface, and at least one through-opening connecting the front surface and the back surface; b) unfolding a bristle material from at least one reel, the bristle material being arranged side by side The strands formed by the fibers, c) the bristled material that has not been cut to length is introduced into the tuft carrier, particularly from the back side and in particular in a manner substantially perpendicular to the back side, and d) extends into the tuft carrier The bristle material is cut off, thereby generating bristle bundles formed in the bristle bundle carrier.

The method of the present invention does not take out the cut bristles cut to length from the box, but when the brushes or bristles are about to be manufactured, the bristles are obtained from at least one endless reel and the bristles are cut in the tuft carrier. This means that this operation for cutting the bristles takes place in the device for manufacturing brushes. In this case, the fibers stranded on the reel each form a bristle. Of course, these fibers are preferably arranged in parallel in the reel, rather than twisting each other like a rope.

It is often desirable to make brushes or bristles with different bristles colors and / or bristles thickness. In order to achieve this in the method of the invention, several shares can be drawn from several reels at the same time and these shares can be combined into a single share. This 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 also be drawn from several reels at the same time and inserted into several openings of the hair bundle carrier, and then cut. Of course, you can also combine several scrolls into one. But this change includes the following: different openings inserted into the hair bundle carrier, and then Was cut off. The strands here can also be different from one another, meaning that they have fibers that differ, for example, in color or cross-section.

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

For a brush or bristles (such as a nail polish brush) applied with a coating on the front end of the tuft, for example, the tuft can be held on or in the holding section such that The bristles have a curved frontal bristle end when viewed from a side view or as viewed from above. Especially for nail polish brushes, this can improve the application of paint.

The strand can be unrolled from the reel by at least one roller which jams the drawn section of the strand. This roller is driven, of which, of course, a non-driven paired roller or a driven paired roller may also be provided, so that the strand is clamped between the rollers.

It is also possible to use several independent rollers for several reels to unfold several strands at the same time. Alternatively, several strands can be unrolled from several reels by a driven roller. This roller has, for example, a number of segments separated from each other by means of a separator, which segments form a roller. In this case, each roller can correspond to one strand.

The roller or the rollers may have a modeling side that jams the strand, and the side changes the cross-sectional shape of the strand on the driven side, thereby changing the orientation of the fibers. That is to say, through this modeling side, the intermediate stage of the final cross-sectional shape of the bristle bundles has been formed, or the final cross-sectional shape of the bristle bundles has been formed.

The strand or strands need not have reached their final orientation in the tuft carrier before being cut. More specifically, the bristle tuft can be further moved into the tuft carrier in the front direction after being cut, for example, by some kind of component similar to a punch or a movable plate.

According to a variant, the tuft carrier may be an intermediate box that is reused in a device for making brushes or bristles, ie, a box-like component. The intermediate box containing one or several tufts of bristles then continues to move in the device. The cut bristles or cut bundles are pushed into, for example, a holding section of a future brush body or a brush body, and are then fixed to the holding section. In this case, the holding section is, for example, a prefabricated part provided with at least one opening, and after the tuft or bristle is fixed to the part, the part is connected to the rest of the brush body or the brush body, such as adhesive Attach to the handle or handle or umspritzen to form a handle or handle or similar. As an alternative, the intermediate box may be an injection molding tool insert, which is used to manufacture at least a portion of the brush body or bristled pen body that forms the holding section, or the bristle or bristle bundles are formed by The intermediate cassette is pushed into the corresponding injection molding tool insert. In this insert, for example, the ends of the bristles can be connected to one another, for example in a fused manner. Then, the bristle bundle or the bristle bundles are pressure-molded and encapsulated from the back to form the entire brush body or the brush body, or only a section of the brush body or the brush body, and then injection molding The remaining part is formed or fixed on the section.

According to another variation of the invention, the tuft carrier itself is the holding section of the brush or the brush. Therefore, as mentioned earlier, this retaining section is an integral part of the future brush body or brush body. Here, the holding section itself can be integrally connected with the rest of the brush body or the brush body, and form a section of the brush body or the brush body. This applies, for example, to a situation where the entire brush body, including the head, neck, and shank, is pre-made in a toothbrush, then plugged and possibly further only on the back of the head area For pressure injection encapsulation. As an alternative, the retaining section may be a pre-made part, such as a sheet or sleeve provided with one or several openings (suitable for paint brushes). When the plugged part is next connected to the brush body or the rest of the bristle pen body, for example, by pressure injection molding or fixing another prefabricated part (such as a handle) of the brush body or the bristle pen body Then, the component through the plug hole will become an integral part of the brush body or brush body in the future.

If the bristle material comes from the reel, the bristle material can be introduced into the tuft carrier until the bristle material protrudes from the front surface.

The ends of the bristles protruding from the back can then be fixed to the holding section. One fixing method is: after the ends of the bristles protruding from the back pass through the holding section, they are fused from the back. The materials of the holding section can also be fused together, but this is not necessary. However, since the materials of the bristles and the holding section may also be different from each other, only the ends of the bristles may be fused into a uniform section on the back surface, so that the ends of the bristles cannot be pulled forward.

As described above, after the bristle bundle is fixed to the holding section, the holding section can be fixed to the handle. The handle can be coupled to the tuft carrier via a snap connection, for example.

The next alternatives in the next five paragraphs have the same features as described above, and can also be provided in the device of the present invention: if the brush body (the middle box or sheet is a component of the complete brush body, or the brush body itself) has a number Holes, one or several reels can be used to attach the bundles of bristles to be separated in the future.

When plugging the holes, if the number of reels is less than the number of holes to be plugged, such as using or not using an introduction device between the roller and the brush body, make the reel (or the reels or the brush body in two directions) Up movement to achieve relative movement of these parts. For example, use a reel to plug holes one by one and cut the strand after introducing it.

Of course, it is also possible to use, for example, several strands and reels having different fibers. For example, to install tufts in all openings that need to be filled with yellow, white, or black tufts, three reels are sufficient.

During the plugging process of the brush body provided with several openings, when the strands of the reels are no longer needed, these reels can also be opened or closed. In addition, several strands can also be sequentially introduced into the same opening in the introduction device, so that different strands can be sequentially positioned by the introduction device.

Of course, when large tufts need to be formed in the brush, several strands can also be combined. Example: For example, a 20-hole toothbrush may need to use 25 reels, of which ten reels are combined into five joints.

Furthermore, the invention relates more particularly to a device for manufacturing a brush or a bristled pen, in particular a device for carrying out the aforementioned method of the invention. The device of the present invention has a tuft carrier on which at least one bristle tuft can be mounted. The tuft carrier has a front surface, an opposite back surface, and at least one through-opening connecting the front surface and the back surface. The device includes: at least one scroll, A plurality of strands of side-by-side continuous fibers are wound on the reel, a feeding device, the feeding device unrolls the strand from at least one reel and introduces the strand into the opening, cutting device in the hair bundle carrier, the After the cutting device is introduced into the channel at the end of the strand, the bristle bundle is separated from the strand, and a fixing device is used to fix the bristle bundle to the holding section of the brush or the bristle pen, especially in the form of a fusion device. Device.

The feeding device may have at least one roller which catches the drawn section of the strand to extract the strand.

To unroll several strands from several reels, several independent rollers can be set. As mentioned before, the rollers can also be formed by several separated sections on a drum. Each roller corresponds to a strand of a reel.

As with the previous method, a molding side can also be provided on the roller or rollers to change the cross-sectional profile of the strand on the driven side.

To make it easier to introduce the fibers into the brush body, or to organize several strands of fibers, for example, a guide having at least one introduction channel may be provided. 入 装置。 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 opposite to the back exit of the opening on the hair bundle carrier, and the hair bundle carrier and the introduction device can also be separated by a minimum distance.

The introduction device can also align or merge several strands of several reels with each other. The strands of these several reels run through the introduction device, and / or several strands are merged into one strand on the output side in the introduction device.

It is also possible to combine several strands into a single strand in the brush body, whether the brush body is an intermediate box or is already a component of the brush body or the brush body. For this purpose, the opening or the possible introduction device has a cross section different from the output side on the input side outlet of the opening or the introduction channel. For example, the channel or the opening may be narrowed in a funnel shape, or several sub-channels may be provided on the input side, and these sub-channels are then combined into a common channel on the output side. Another possibility is that several sub-sections are formed on the input side, for example, in a manner similar to clover, and the sub-sections are separated from each other section by section, and the opening or the channel has a completely different cross-sectional shape on the output side .

In general, the introduction channel or the opening may have an exit cross-section on the back side that is different from the front side so that the cross-section of the one or more strands can be more easily introduced and / or changed. As mentioned before, the introduction channel or the opening can be tapered from the back exit to the front exit, and / or the front exit and the back exit have different cross-sectional shapes. "Cross-sectional shape" means that the shape itself is another shape, That is, instead of changing from, for example, a small circle to a large circle or a small rectangle to a large rectangle, the introduction channel or the opening, for example, changes from a circular exit on the back to an oval or rectangular exit on the front. The term "different cross-sections" includes both changes in the shape of the cross-section and also changes in the cross-sectional area only, that is, from small rectangles to large rectangles.

The device of the present invention may also have several reels, on which a plurality of strands are wound, and the strands are combined into a single strand or introduced into several independent openings in the tuft carrier.

To set the geometry of this tuft of bristles in future brushes or future bristles, an orientation tool can be set. The shape of the at least one tuft of bristles is determined by the orientation tool, wherein the orientation tool is disposed on the front side of the holding section. This orienting tool may be provided, for example, with channels or openings which are inclined and / or have a specific cross-sectional shape (arc, rectangular or similar). The bundle of bristles or bristles are inserted into the channel or openings so as to maintain a specific shape, and then the bristles are fixed to the holding section, for example, the bristles are fused on the back side or subjected to pressure injection molding. This example is not exhaustive.

As described in the foregoing in relation to the method of the present invention, the hair bundle carrier may be an intermediate box reused in the device, the intermediate box is loaded with the at least one cut bristle bundle cut to length, and the at least one bristle The bundle is specifically pushed into the holding section by the intermediate box and is then fixed to the holding section. As described above in connection with the method, as an alternative, the intermediate box may form an injection molding tool insert, or the brush or brushes The hair bundle is further pushed out of the molding tool insert by the intermediate box, and finally is subjected to pressure injection encapsulation treatment.

For this, an alternative embodiment is that the tuft carrier itself is the holding section of the brush or the brush, that is, it becomes an integral part of a future brush or brush.

The device may be configured such that the feeding device further pushes the separated bristle bundles into the holding section, so that the bristle bundles and the strands do not reach the bristle bundles and the or The final position of these 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 they come from the same sentence or from the same paragraph, can also be arbitrarily combined with other features from other sentences or paragraphs to form new changes that further improve the invention.

Finally, the present invention relates to a nail polish brush having a hose-shaped bristle carrier forming a part of the bristle pen. The bristle carrier has a front surface and a back surface, and the front surface and the back surface pass 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 exit of the opening. The bristle bundle is arc-shaped when viewed from a side view angle of the bristle bundle or from a top-view angle of an end of the bristle bundle.

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

10‧‧‧ Brush Brush Body

12‧‧‧handle

14‧‧‧hair bundle carrier

16‧‧‧bristles

18‧‧‧ opening

20‧‧‧ export

22‧‧‧ Front

24‧‧‧ Endless Scroll

26‧‧‧Endless Scroll

28‧‧‧Endless Scroll

30‧‧‧ shares

32‧‧‧ shares

34‧‧‧ shares

36‧‧‧ Wheel

36’‧‧‧ pair with roller

38‧‧‧ Wheel

40‧‧‧roller

42‧‧‧Introduction device

44‧‧‧joint stock

46‧‧‧ import channel

48‧‧‧ roller

50‧‧‧ dividing wall

52‧‧‧ cutting device

54‧‧‧Put

56‧‧‧ Stop

58‧‧‧ Orientation Tool

60‧‧‧ opening

62‧‧‧Fixed device

64‧‧‧ clumps

66‧‧‧Brush body

68‧‧‧Head

70‧‧‧ middle box, hair bundle carrier

72‧‧‧ opening

74‧‧‧ opening

76‧‧‧ opening

78‧‧‧ hole

80‧‧‧ spacer

82‧‧‧ Import bevel

84‧‧‧area centroid

86‧‧‧area centroid

90‧‧‧ Injection Molding Tool Insert

92‧‧‧ injection molding half mold

94‧‧‧ divided mold cavity

96‧‧‧ Upper mold

98‧‧‧mould cavity

In order to further understand the features and advantages of the present invention, please refer to the description and drawings below. In the drawings: FIG. 1 is a paint brush according to the present invention, especially a nail polish brush, made by the method and the device of the present invention, in a disassembled state; FIG. 2 is the bristles as shown in FIG. The pen is in an assembled state; FIG. 3 is a perspective bottom view of the bristle pen as in FIG. 2; FIG. 4 is a schematic view of a part of the device of the present invention according to an embodiment; and FIG. Fig. 5 is a variation of the device as shown in Fig. 4; Fig. 6 is a schematic diagram of a tilted bottom view of a part of the device of the invention according to another embodiment; and Fig. 7 is a view according to the invention The top of the paint brushes made according to the present invention; FIG. 8 is a change of the tips of the nail polish brushes of the present invention as shown in FIG. 7; and FIG. 9 is a schematic diagram of a part of the change of the device of the present invention. The apparatus uses the method of the present invention to make a brush according to an embodiment; FIG. 10 is a cross-sectional view of a part of another apparatus according to the present invention in a brush body region; FIG. 11 is a top view of a brush body applicable to the method of the present invention, which is applicable to the apparatus of the present invention; FIG. 12 is a brush A cross-sectional view of the body after the ends of the bristles are fused; FIG. 13 is a toothbrush brush body made by the method of the present invention and the device of the present invention; FIG. 14 is an injection molding applicable to the device of the present invention Tool insert; and FIG. 15 is a two-part injection molding tool applicable to the apparatus and method of the present invention.

Figures 1 to 3 show a paint brush, especially a nail polish brush. The paint brush has a two-part brush body 10, which includes a handle 12 and is independent of the handle. The manufactured hair bundle carrier 14 is a sleeve-shaped or hose-shaped plastic piece. A bristle bundle 16 is fixed to the bristle bundle carrier 14.

The hair bundle carrier 14 can be connected to the handle 12 through a snap connection, and as a supplement, an adhesive connection or a welding connection can also be provided for further fastening, but this is not necessary.

As shown in FIG. 3, the bristle bundle 16 has a special cross-sectional shape, see the free end of the bristle bundle 16 in FIG. Rather, the tufts of bristles 16 have an arcuate cross-sectional shape to improve the application of paint.

For this purpose, the tuft carrier 14 is provided with a correspondingly curved opening 18, for example. More specifically, the tube-shaped bristle bundle carrier 14 has a through-opening 18, as will be explained below, the bristle bundle 16 penetrates this open-hole 18 and is fixed there by the back side.

At least the exit 20 (see FIG. 3) of the opening 18 located on the front face 22 of the tuft carrier 14 is arc-shaped to jointly determine the outline of the bristle tuft 16. The rear exit of the opening 18 is shown in FIG. 1, and the exit may have an arc shape, or may have a cross section different from the front exit 20. In Figure 1, the back exit is oval.

The following is not necessary: before the bristle tufts 16 are fixed to the tuft carrier 14, the openings 18 already define the future shape of the cross-sectional profile of the bristle tufts 16. The bristle carrier 16 can also be bonded, welded or sprayed (Verspritzen) or thermoformed in the bristle carrier 16, and then the contour can be determined by such fixing methods.

1 and 2 show the change in the free end contour of the bristle bundle 16 with broken lines. More precisely, as an alternative or supplement, the bristle bundles 16 can be shaped so that the bristle bundles are curved in a side view, meaning that the middle bristles protrude beyond the tuft carrier 14 Better than the bristles on the sides.

As described above, the cross-section of the opening 18 in the tuft carrier 14 may be different with respect to the front exit and the back exit. Opening 18 for example It can be tapered at one end and / or have a different cross-sectional shape, such as the oval-shaped back exit in Figure 1 and the arc-shaped front exit in Figure 3 (for illustration only), which can also use any other geometry shape. In this case, this depends in some cases on the desired contour of the tufts of bristles 16.

FIG. 4 shows schematically how the device for manufacturing the brush can be implemented. The bristles are not taken out of the box. The bristles in the box are cut to length. They are manufactured using endless reels 24 to 28. The endless reels 24 to 28 are wound with strands of fibers 30 to 34 arranged side by side. .

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

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

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

Unroll these strands 30 to 34 from the reels 24 to 28, for example, the rollers 36 to 38 (and the corresponding paired rollers usually provided, which are not shown here for simplicity). To 34 and unfolding these shares 30 to 34.

The embodiment shown in FIG. 4 should not be interpreted restrictively. In this embodiment, the device for manufacturing a brush has a lead-in device 42 which is simplified and shown between the rollers 36 to 40 and the tuft carrier 14, And the shares 30 to 34 are merged into a joint stock 44 in the introduction device 42. For this, the The introduction device has an introduction channel 46 having a rear exit (as seen in Fig. 4) and an opposite exit on the front. These outlets have different cross sections. In particular, the cross-section of the back exit is larger than the front exit. In addition, other cross-sectional shapes can be realized on the back and front sides.

The lead-in channel 46 can also be constructed in such a way that the lead-in channel 46 has a channel section on the front side, and the channel section branches off to several back channels. Then, 30 to 34 strands can be introduced into each of these division channels, and within the introduction device 42, these strands 30 to 34 are then merged together when they reach the common passage section. The advantage of this method is that the orientation of the strands 30 to 34 can be kept stable for a long time, so as to ensure that the individual fibers of the strands 30 to 34 always have the same orientation and positioning within the ply 44.

The changes of the rollers 36 to 40 are shown in Figure 4a, because the driven roller 48 is here divided into a number of segments defining the rollers 36 to 40 by the sheet-like partition wall 50. This makes it possible to use a common drive, and furthermore, the strands 30 to 34 are stably positioned before entering the introduction device 42.

After the introduction of the device 42, the plied strand 44 extends from the back side into the tuft carrier 14 and passes forward through the tuft carrier 14, so that the front end of the strand 44 protrudes from the tuft carrier 14.

After the strands 44 have passed through the tuft carrier 14 to a sufficient degree, the strands 14 are cut by a cutting device 52 on the back of the tuft carrier 14 to form a bristle tuft 16.

Then, the bristle bundles 16 are continuously transported inside the device, and are further moved by the pusher 54 (the pusher 54 is an integral part of the feeding device) Push the tuft carrier 14 deep until the front end of the bristle tuft 16 abuts against the stop 56.

In the next step, the ends of the back bristles can be fused by a thermal punch or simply by heating, so that the ends of the back bristles form a layer-like or lumpy structure inside the tuft carrier 14.

As shown in FIG. 4, the stopper 56 may be subjected to profilieren to collectively determine the top shape of the hair bundle. In this case, the stop is part of a so-called directional tool for the bristle bundles 16.

As an alternative, the orientation tool can also be implemented as a plate-shaped body with openings, where the cross-section of the openings and the orientation of the openings determine the orientation and cross-section of the bristle bundles 16.

For this purpose, the directional tool can be implemented, for example, similarly to the directional tool 58 in FIG. 10, the openings 60 of the directional tool 58 being inclined and having a long profile in cross section. But this is only for illustration.

Of course, a single bristle bundle can also have other shapes, see the toothbrush in FIG. 13. These shapes and similar shapes can also be achieved on the brushes with corresponding stops and orientation tools.

In the embodiment of the device as shown in FIG. 5, only one strand 30 is unrolled from a reel 24. The implementation and corresponding functions of the device in other aspects are the same as those in FIG. 4, so the related content can refer to FIG. 4. Accordingly, only one roller 36 and the matching roller 36 'of the roller 36 are needed.

As shown in FIG. 6, the sides of the rollers 36 and 36 ′ may be subjected to modeling treatment. Specifically, for example, when viewed in cross section, the side of a roller is convex and the side of a roller is concave. Through this shape, the strand 30 follows the rollers 36, 36 'in the direction of movement, and the cross-section of the strand 30 is correspondingly shaped so that it can 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 bundles 16, but may be an intermediate shape. Compared to the cross-section of the strand 30 before the rollers 36, 36', the The middle shape is closer to the future shape.

The introduction device 42 is not provided in the embodiment shown in FIG. 6, but this is not necessary.

Figures 7 and 8 show the different changes achieved by the different bristles in the brush. According to FIG. 7, the outer bristles in the total bristle bundle 16 may be thinner than the middle bristles from the strand 32, or may be different in color from the middle bristles. In the embodiment as shown in FIG. 8, the partial beams are alternately arranged at a higher frequency.

FIG. 7 symbolically shows a fixing device 62 for fixing the bristle tufts 16 to the holding section (here, to the tuft carrier 14). The fixing device 62 is here implemented as a thermal punch, which is pressed into the opening 18 from the back, so that the ends of the molten bristles form a certain mass 64, that is, all hair bundles are connected together and cannot be directed toward Pull the tuft carrier forward.

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

In all embodiments, the strand or strands may preferably be introduced into the bristle carrier in a manner perpendicular to the back of the bristle carrier.

In the embodiment as shown in FIGS. 1 to 8, the tuft carrier 14 forms a holding section of the brush body and is a separately made component in advance. In contrast, of course, the following embodiment can also be adopted: The bristle pen body or the brush body is a prefabricated part for bristle insertion. In this case, the brush body section in the hair bundle area is the holding section.

The aforementioned method of manufacturing a brush bundle through one or more reels is also applied to the following embodiments of the device. Therefore, in related equipment, one or several strands are drawn from one or more reels to manufacture a bristle bundle. And need not be mentioned separately.

In the embodiment shown in FIG. 9, a toothbrush is plugged, and like all embodiments, the toothbrush also has a bristle bundle 16 which is fixed to the toothbrush without anchors. The brush body 66 has a handle portion, a neck portion, and a head portion 68 provided with a plurality of openings 18. The head 68 forms a holding section for the bristle bundles 16. Here is also the back plug hole.

Unlike the aforementioned changes, the hair bundle carrier in this embodiment is a so-called intermediate box 70 that is repeatedly used in the device. The strands from the reels 24 or 28 are inserted into the box 70, and the strands are inserted from the back side. It is cut by the cutting device 32 to form a hair bundle.

The middle box 70 may have one or more openings 72. The hole pattern of the intermediate box 70 is preferably the same as the hole pattern of the holding section, which at the same time forms the brush body.

As a result, the tufts 16 are filled in the intermediate box 70. Among them, one or several reels 24 to 28 can simultaneously or sequentially introduce strands into different or the same openings in the intermediate box. This can be arbitrarily changed.

FIG. 9 shows only a part of the intermediate box in the form of the hair bundle carrier. In fact, the width of the corresponding plate is approximately the same as that of the head 68.

After the tufts 16 are installed on the entire middle box 70, the middle box 70 is moved to the head 68, or the head is moved to the middle box, and then, for example, through the corresponding pusher 54 (the pushers are the feeding device) Component), the tufts of bristles 16 are pushed from the middle box one by one or together into the relative openings in the head 68.

In general: If the brush body (the middle box or sheet is used as a component of the complete brush body, or the brush body itself) has several openings, as shown in Figure 9, you can use one or more reels to Wait for the opening to install the bundle of bristles that will be separated in the future.

When plugging holes, if the number of reels is less than the number of holes to be plugged, (for example, with or without the introduction device 42), make the reel / the reels or the brush body between the roller and the brush body in two directions Up movement to achieve relative movement of these parts. For example, use a reel to plug holes one by one and cut the strand after introducing it.

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

During the plugging process of the brush body provided with several openings, when the strands of the reels are no longer needed, these reels can also be opened or closed. In addition, several strands can also be sequentially introduced into the same opening in the introduction device, so that different strands can be sequentially positioned by the introduction device.

Of course, when larger tufts need to be formed in the brush, several strands can also be combined. Example: For example, a 20-hole toothbrush may require 25 reels, of which the strands from ten reels are merged into five plies.

The orienting tool 58 directly or with a little space abuts the front of the holding section, and a corresponding channel or opening 74 is provided for the bristle bundle 16 to extend in. In this case, the cross-sectional shape and orientation of the openings 74 can still define the orientation and contour of the bristle bundles 16 in the retaining section.

The front surface can also be provided with a stopper 56 which is processed according to the situation.

After pushing in, the back ends of the bristle bundles 16 are still fixed together, as described above.

FIG. 10 shows by way of example how the orientation tool 58 defines the shape of the tufts of bristles 16 to be pushed in the future. Here, a tuft of bristles needs to be inserted into the head 68. The tufts of bristles are oblique on the one hand and have an elongated shape on the other. To this end, the two tufts of bristles are merged inside the holding section (here the head 68) so that the holding section simultaneously forms, for example, an introduction device as described above in relation to FIG. 4.

The head 68 has an opening 18, and the front face (lower in FIG. 10) has a single outlet with a special cross section surface. The opening branches off into two sub-holes 76 and 78 on the back side, and the sub-holes 76 and 78 are separated by a partition 80. This means that the openings 18 exit from two smaller openings 76 and 78 having different cross sections.

Each of the sub-holes 76 and 78, or each corresponding outlet is provided for one strand, and one strand can be directly introduced into the sub-holes 76 and 78. Then cut these strands from the back, please refer to the previous figure for details. The introduction inclined surface 82 is used to turn the combined bristle bundles, that is, to introduce them into the inclined opening 60.

As an alternative, the device shown in FIG. 10 may not directly introduce the strands into the holding section (here, the head 68), but cut the bristle bundles to a fixed length in the middle box as shown in FIG. 9 Then, the bristle bundles are plugged into the holding section and fixed on the holding section.

As shown in the foregoing in relation to the introduction device 42 or the opening 18 in FIG. 10, the tufts or strands of the bristles can be inserted into the introduction channel or opening of the exit cross section different from the exit cross section of the front face, so that on the one hand it can be more Easily introduced from the back, on the other hand, to achieve the frontal shape of the tufts of bristles, or at least provide support for the shape.

FIG. 11 shows the above-mentioned changes in the cross section of the front and back exits with the toothbrush head 68, and the corresponding changes can also be applied to the tuft carrier 70 (such as a middle box) or the introduction device 42. Each opening 18 is shown by two lines in FIG. 11. The thick line represents the exit cross section of the front side, and the thin line represents the exit cross section of the corresponding opening 18 on the back side. If the thick line intersects with the outer thin line outward, the back exit can also be defined by the thick line section.

FIG. 12 symbolically shows how a single or several bristle bundles 16 are anchored in the bristle bundle carrier 14. In this embodiment, the agglomerates 64 formed when the ends of the bristles are melted are located in the corresponding openings in the tuft carrier 14. Alternatively, the molten material may form a layer on the back.

FIG. 12 further illustrates that at the right end, the exit of the opening 18 has different cross sections on the front and back. Here, the opening 18 is tapered from the back to the front. In addition, the area centers 84, 86 of the front and back exit cross sections are laterally offset, see the axis in the figure. Of course, the corresponding openings in the introduction channel 46 or the intermediate box may also have corresponding shapes.

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

FIG. 14 shows a hair bundle carrier, which can also be implemented as an intermediate box and an injection molding tool insert 90 as appropriate.

Openings 18 are formed in the injection molding tool insert 90, and the rollers can directly introduce the strands into these openings, that is, with or without the introduction device 42. As an alternative, a cut-to-length bristle bundle can be provided by the intermediate box shown in FIG. 9, and then these bristle bundles are pushed into the opening 18.

Finally, the injection molding tool insert 90 has tufts of bristles protruding from the back surface, and the tufts of bristles are then connected on the back surface, for example, by fusion.

Then insert the injection molding tool insert 90 with the bristle bundles inserted into the injection molding half mold 92 shown in FIG. 15. In the illustrated example which should not be understood as a limitation, the injection molding half mold 92 is also A parting cavity 94 for the manufacture of brush handles is implemented. The corresponding upper mold half 96 may also have a parting cavity.

In the embodiment, when the brush body is formed, the back end of the bristle bundle is subjected to pressure injection encapsulation treatment, and the brush body forms a holding section in the area of the bristle bundle.

Alternatively, the bristle bundles 16 may be fixed to a separate part (more specifically, a laminar bristle bundle carrier 14) made in advance, and the bristle bundle carrier 14 may be inserted into the injection molding tool insert 90. Corresponding to the mold cavity 98, the bristle carrier 14 is then subjected to an injection molding encapsulation process while forming the rest of the brush body.

Of course, within the scope of the present invention, further changes can be envisaged in conjunction with the foregoing embodiments.

Claims (19)

A method for manufacturing a brush or a brush, the brush, in particular a paint brush, by fixing at least one bristle bundle (16) to the brush or a holding section of the brush, Wherein the at least one bristle bundle (16) is fixed to the holding section without anchoring, and the at least one bristle bundle (16) to be fixed to the brush or the bristles is manufactured in the following steps: a) a bristle bundle carrier is provided (14) The hair bundle 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, and b) unfolding bristles from at least one reel (24 to 28) Material, the bristle material is a strand (30 to 34) formed by several fibers arranged side by side, c) the non-cut bristle material is particularly from the back surface and particularly in a manner substantially perpendicular to the back surface The tuft carrier (14) is introduced, and d) finally, the bristle material protruding into the tuft carrier (14) is cut, thereby generating a bristle tuft (16) formed in the tuft carrier, which is characterized by The bristles carrier (14) is a device used for manufacturing the brush or the bristles. A middle box (70) repeatedly used in the middle, the middle box (70) is equipped with the at least one cut bristle bundle (16), and the at least one bristle bundle (16) is provided by the middle box (70) ) Is specifically pushed into the holding section and then fixed to the holding section, or wherein the intermediate box (70) is an injection molding tool insert (90), which is at least used for manufacturing A portion of the brush body or the bristle pen body forming the holding section, or wherein the at least one bristle bundle (16) is pushed into an injection molding tool insert (90) by the intermediate box (70), or wherein The tuft carrier (14) itself is the holding section of the brush or brush, wherein the holding section is a section integrally connected with the rest of the brush body or the brush body, or it is a pre-made independent The component is a component part of the brush body or the brush body in the future. The method according to claim 1, wherein the at least one reel (24 to 28) is an endless reel, and the endless reel is wound with a strand (30 to 34) formed by several continuous fibers. The method as described in claim 1, wherein: several shares (30 to 34) are drawn from several reels (24 to 28) at the same time and these several shares (30 to 34) are combined into a joint stock (44), and the The ply (44) is inserted into the opening (18) of the tuft carrier (14), and then cut off, in particular, the stocks (30 to 34) on the reels (24 to 28) are different from each other . The method according to claim 1, wherein: a plurality of stocks (30 to 34) are simultaneously drawn from a plurality of reels (24 to 28) and the plurality of stocks (30 to 34) are inserted into the hair bundle carrier (14). Several openings (18) are then cut off, in particular the stocks on these reels (24 to 28) are different from each other. The method according to claim 1, wherein the bristle bundle (16) is held on or in the holding section as follows: viewed from a side angle of the bristles or from a top angle of the bristles The bristle bundle has an arcuate frontal bristle bundle end. The method as described in claim 1, wherein: drawing from the reel (24 to 28) by holding at least one roller (36 to 40) of the extracted section of the stock (30 to 34, 44) The at least one strand (30 to 34, 44), in particular, uses several independent rollers (36 to 40) to unroll the several strands (30 to 34), or is formed by a plurality of separated sections on a drum. Rollers, where each roller corresponds to a strand of a reel, for example. The method according to claim 1, wherein after step d), the cut bristle tufts (16) are caused to pass further through the tuft carrier (14) in a frontal direction. The method according to claim 1, wherein the bristle material is introduced into the tuft carrier (14) until the bristle material protrudes from the front surface. The method according to claim 1, wherein the ends of the bristles protruding from the back are fixed to the holding section, and in particular, after the ends of the bristles protruding from the back pass through the holding section, The ends of the bristles are fused together. The method according to claim 1, wherein after the bristle bundle (16) is fixed to the holding section, the holding section is fixed to a handle (12), in particular, wherein the handle (12) and the hair bundle carrier (14) A snap connection is provided between them. A device for manufacturing a brush or a brush, in particular a device for implementing the method according to any one of the preceding claims, characterized in that a device for mounting at least one bristle bundle (16) is provided. A hair bundle carrier (14), the hair bundle 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, wherein the device includes: at least one scroll (24) To 28), the reel (24 to 28) is wound with a strand (30 to 34) formed by several continuous fibers arranged side by side, and a feeding device is unwound from at least one reel (24 to 28) The strand (30 to 34) and introduces the strand (30 to 34) into the opening in the hair bundle carrier, a cutting device (52), the cutting device (52) is introduced into the opening at the end of the strand After the holes (18), the bristle bundles (16) are separated from the strands (30 to 34), and a fixing device (62) is used to fix the bristle bundles (16) to the brush or one of the brushes. The holding section, in particular a fixing device (62) in the form of a fusion device, is characterized in that the hair bundle carrier (14) is an intermediate box ( 70), the intermediate box (70) is equipped with the at least one cut-to-length bristle bundle (16), and the at least one bristle bundle (16) is particularly pushed into the holding section by the intermediate box (70) And then fixed to the holding section, or the intermediate box (70) is an injection molding tool insert (90), and the injection molding tool insert (90) is used to manufacture at least the brush body or the brush body The part forming the holding section, or the at least one bristle bundle (16) can be pushed into an injection molding tool insert (90) by the intermediate box (70), or the bristle carrier (14) itself is the brush Or the holding section of the brush, wherein the holding section is a section integrally connected with the brush body or the rest of the brush body, or a pre-made independent part, which is the future hair bundle Component of the carrier (14). The apparatus according to claim 11, wherein the feeding device comprises: at least one roller (36 to 40), the roller (36 to 40) jams the extracted section of the stock (30 to 34) to extract the Strands (30 to 34), in particular, separate rollers (36 to 40) are provided for unrolling several strands (30 to 34), or the rollers are formed by several separated sections on a drum (48) (36 to 40), for example, each roller (36 to 40) corresponds to a strand (30 to 34) of a reel (24 to 28). The device according to claim 11 or 12, wherein an introduction device (42) having at least one introduction channel (46) is provided between the reel (24 to 28) and the hair bundle carrier (14). The end of the strand (30 to 34) is introduced into the introduction channel (46), and the end of the introduction channel is opposite to the back exit of the opening (18) on the hair bundle carrier (14), in particular, Among them, several strands (30 to 34) of several reels (24 to 28) run through the introduction device (42), and / or, in particular, several strands (30 to 34) are on the output side in the introduction device (42) Consolidated into one share (44). The device according to claim 11 or 12, wherein the at least one introduction channel (46) or the opening (18) has a cross-section on the back surface different from the outlet of the front surface, and in particular, the introduction channel (46) or the opening (18) tapers from the back exit to the front exit, and / or the front exit and the back exit have different cross-sectional shapes. The equipment according to claim 11 or 12, wherein there are several reels (24 to 28), and a number of strands (30 to 34) are wound on these reels (24 to 28), and these shares (30 to 34) ) Are combined into a single strand (44) or introduced into the hair bundle carrier (14) into several independent openings (18). The device according to claim 11 or 12, wherein a directional tool (58) is provided, and the shape of the at least one bristle bundle (16) is determined by the directional tool (58), wherein the directional tool (58) is provided at The front side of the holding segment. The apparatus according to claim 11 or 12, wherein the apparatus is configured such that the feeding device further pushes the separated bristle bundle into the holding section. A nail polish brush has a hose-shaped tuft carrier (14) forming a part of the bristle pen. The tuft carrier (14) has a front surface and a back surface, and the front surface and the back surface are opened through a single through hole. 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 exit of the opening (18), and a bristle is fixed on the tuft carrier The tufts have a curved tuft end when viewed from a side view angle of the tufts or a top view of the end of the tufts (16). The nail polish brush according to claim 18, wherein the opening (18) is tapered from the back exit to the front exit, and / or the front exit and the back exit have different cross-sectional shapes Wherein the back exit and / or the front exit and / or the opening (18) has an oval or arc-shaped cross section.