JPWO2010021138A1 - Brush manufacturing method, toothbrush and hair bundle processing apparatus - Google Patents

Abstract

The invention of the present application efficiently reduces the number of manufacturing steps and reduces the number of manufacturing steps when manufacturing a brush in which hairs that require hair tip processing and taper hairs that do not require hair tip processing are mixed. To manufacture. The present invention also provides a hair bundle processing apparatus capable of performing appropriate hair tip processing on a hair bundle before flocking and efficiently performing such hair tip processing on the hair bundle. In the present invention, after applying the hair tip processing to the first hair bundle, the first hair bundle and the second hair bundle subjected to the taper processing for sharpening the hair tip are used as the flocked surface of the brush. It is planted in a plurality of flock holes provided in. Moreover, the hair bundle processing apparatus of this invention is provided with a hair bundle conveyance part, a hair bundle supply part, a hair bundle collection | recovery part, and a hair tip processing part. The hair bundle transport unit has a rotating plate and a hair bundle holding mechanism, and the hair bundle collection unit has a hair bundle discharge mechanism. The bristle end processing portion has a polishing drum provided with a planar polishing body or a protruding polishing body on the outer peripheral surface.

Description

The present invention relates to a method for manufacturing a brush and a toothbrush. Furthermore, the present invention relates to a hair bundle processing apparatus for processing a hair bundle of hair such as a toothbrush.
This application claims priority based on Japanese Patent Application No. 2008-211759 filed in Japan on August 20, 2008 and Japanese Patent Application No. 2008-326907 filed on December 24, 2008 in Japan, The contents are incorporated here.

  For example, a toothbrush that is a brush for oral cleaning usually trims the tip of the hair bundle into an arbitrary shape after planting a hair bundle of hair having a cross section of a circular shape or a rectangular shape into a brush hole. Furthermore, it finishes by performing the rounding process of the hair end (for example, refer patent documents 1-3 etc.).

  On the other hand, toothbrushes using tapered bristles with sharpened tips are pre-flocked by planting hairs that have been tapered to sharpen the tips by dissolution treatment in the flock holes of the brush. Finished without prior processing.

  For this reason, when producing a toothbrush in which normal hair that requires hair tip processing after the above-described hair transplantation and taper hair that does not perform tip processing are mixed, first, the normal hair is planted in a desired manner. After planting in the pores and performing the above-described trimming of the tips of the hair bundle and rounding of the ends of the hair, the taper hair is implanted in the remaining planting holes.

  However, such a conventional method for manufacturing a brush has a drawback that not only the number of steps is increased, but also a lot of manpower is required. On the other hand, when the tip of hair is processed after planting the above-described normal hair and the taper hair into the flock hole of the brush, the number of steps can be reduced, but the tip of the taper hair is also processed at the same time. As a result, there arises a problem that the shape of the tip of the taper hair is deteriorated.

  As described above, with respect to the bristles of normal hair implanted in the toothbrush, the bristles are rounded after flocking so that the tips of the bristles do not damage the gums or cause harm. On the other hand, by carrying out the rounding process before flocking the hair bundle of normal hair, omitting the tip processing after planting the normal hair and the taper hair into the flock hole of the brush Is possible.

  Here, in a flat wire flocking machine used in a general method of manufacturing a toothbrush, flocking is performed by folding a bundle of bristles bundled in multiple pieces into a flock hole while sandwiching a flat wire between them. ing. Therefore, in the case of rounding the hair tips on the hair bundle before flocking, it is necessary to perform the hair tip processing on both ends of the hair bundle.

  However, conventionally, a device that performs hair tip processing after a hair bundle is implanted in a flock hole of a brush is generally used. On the other hand, an apparatus has been proposed in which a continuous linear filament is cut into a desired length and then rounded (see, for example, Patent Document 4). However, in this apparatus, even if the filament conveyance speed is increased, the filament needs to be processed in units of one piece, so that the processing capacity is limited.

Japanese Patent Laid-Open No. 5-228021 Japanese Patent Laid-Open No. 7-1224019 JP-T-2001-515381 Japanese Patent Laid-Open No. 7-8326

  The present invention has been proposed in view of such conventional circumstances, and when producing a brush in which hair for which hair tip processing is necessary and taper hair which does not require hair tip processing are mixed, It is an object of the present invention to provide a method for manufacturing a brush capable of efficiently manufacturing such a brush while reducing the number of manufacturing steps, and a toothbrush manufactured using such a method.

  A further object of the present invention is to provide a hair bundle processing apparatus capable of performing appropriate hair tip processing on a hair bundle before flocking and efficiently performing hair tip processing of such a hair bundle. And

  In order to achieve this object, in the invention according to the first aspect of the present invention, the hair end processing is performed after the hair end processing by the polishing process is performed on the hair bundle of the first hair. A plurality of flock holes provided on the flocked surface of the brush, each of the first bristles and a second bristles that have been tapered in advance to sharpen the tips by dissolution treatment. It is the manufacturing method of the brush characterized by planting in.

  Moreover, the invention which concerns on a 2nd aspect performs any process among the rounding process which rounds a hair tip, the taper process which sharpens a hair tip, and the spatula processing which flattens a hair tip as a hair tip process. A method for manufacturing a brush according to a first aspect, characterized in that

  Moreover, the invention which concerns on a 3rd aspect WHEREIN: The hair supply part which supplies the hair | bristle bundle to a rotary plate with which the holding groove | channel which hold | maintains a hair | bristle bundle was arranged in multiple numbers in the outer periphery part in hair tip processing And a hair collecting portion for collecting the hair bundle from the holding groove, and a polishing drum provided with a planar polishing body or a plurality of protruding polishing bodies on the outer peripheral surface, and rotating the rotating plate and rotating the rotating plate While rotating the polishing drum arranged on at least one or both surfaces of the plate around its central axis and / or around an axis perpendicular to the central axis, the tips of the hair bundles held in the holding grooves of the rotary plate A method of manufacturing a brush according to the first aspect or the second aspect, wherein a hair bundle processing machine that polishes with a planar abrasive or a protruding abrasive is used.

  Moreover, the invention which concerns on a 4th aspect arrange | positions at least 2 or more hair supply parts in the position along the outer periphery part of a rotating plate, and 2 or more types of hair from which either a cross-sectional shape or a color differs. Is supplied from the bristle supply section. A method for manufacturing a brush according to the third aspect.

  Moreover, the invention which concerns on a 5th aspect arrange | positions at least 1 or 2 or more hair collection | recovery parts in the position along the outer-periphery edge part of a rotating plate, The said hair collection | recovery part for every different hair Is a method of manufacturing a brush according to a fourth aspect, wherein the hair bundle is collected, or the different types of hairs are collected in a mixed state by a single hair collecting unit.

  Moreover, the invention which concerns on a 6th aspect can contact / separate with respect to the flocking hole of a brush, when planting the hair | bristle bundle of 1st hair and the hair | bristle bundle of 2nd hair in the said flocking hole. And a hair bundle supply mechanism for supplying a hair bundle to the hair transplantation head, and a flat wire supply mechanism for supplying a flat wire to the hair transplantation head. The production of the brush according to the first to fifth aspects, wherein the hair bundle is used to fold the hair bundle in half and plant the hair bundle by driving a flat wire sandwiched between the hair bundles into the flock hole of the brush. Is the method.

  Moreover, the invention which concerns on a 7th aspect is the toothbrush manufactured by the method of the 1st-6th aspect.

  Moreover, the invention which concerns on an 8th aspect has the hair | bristle bundle conveyance part which conveys a hair | bristle bundle, the hair | bristle bundle supply part which supplies a hair | bristle bundle to a hair | bristle bundle conveyance part, and the hair | bristle bundle which collect | recovers hair | bristle bundles from a hair-bundle conveyance part A hair bundle processing apparatus comprising: a collection unit; and a hair tip processing unit that performs hair tip processing on a hair bundle conveyed between the hair bundle supply unit and the hair bundle collection unit.

  Moreover, the invention which concerns on a 9th aspect is provided with the holding | grip groove | channel which the hair bundle conveyance part scrapes off the predetermined number of hair bundles from the hair bundle group supplied from the hair bundle supply part in multiple numbers along the outer peripheral edge part. A hair bundle processing apparatus according to an eighth aspect, comprising: a rotating plate; and a hair bundle holding mechanism that holds the hair bundle scraped off by the holding groove in the holding groove.

  The invention according to the tenth aspect is the hair bundle processing apparatus according to the ninth aspect, wherein the hair bundle collection unit has a hair bundle discharge mechanism for discharging the hair bundle in the holding groove.

  Moreover, the invention which concerns on an 11th aspect has a grinding | polishing drum with which the hair-end process part was provided with the planar grinding | polishing body or the some protrusion-shaped grinding | polishing body in the outer peripheral surface, and a grinding | polishing drum is at least one of a rotary plate Alternatively, the tips of the hair bundles are polished by the planar polishing body or the protruding polishing body while being arranged on both surface sides and rotating around the central axis and / or the axis orthogonal to the central axis. The hair bundle processing device according to the eighth to tenth aspects.

  Further, the invention according to the twelfth aspect is characterized in that at least one or two or more hair bundle supply parts are arranged at positions along the outer peripheral edge of the rotating plate. This is a hair bundle processing apparatus.

  In addition, the invention according to the thirteenth aspect is characterized in that at least one or two or more hair bundle collecting parts are arranged at positions along the outer peripheral edge of the rotating plate. This is a hair bundle processing apparatus.

As described above, according to the present invention, the hair bundle of the first hair that has been subjected to the hair tip processing after the hair tip processing by the polishing process is performed on the hair bundle of the first hair. The second bristles bundled with a taper process that sharpens the hair tips in advance by dissolution treatment are planted in a plurality of flock holes provided on the flocked surface of the brush, respectively. It is possible to efficiently manufacture such a brush while achieving a reduction of the above.
Further, in the present invention, by using such a manufacturing method, the first bundle of hairs that has been subjected to the hair end processing by the polishing treatment and the taper processing for sharpening the hair tips in advance by the dissolution treatment are performed. It is possible to provide a toothbrush in which the bundle of the second bristle that has been mixed is provided at low cost.

  Moreover, according to this invention, while performing an appropriate hair-end process with respect to the hair bundle before flocking, the hair bundle processing apparatus which enabled efficiently performing the hair-end process of such a hair bundle is provided. It is possible.

FIG. 1 is a plan view showing an example of a hair bundle processing machine used in a method of manufacturing a brush to which the present invention is applied. FIG. 2 is a side view of the hair bundle processing machine shown in FIG. FIG. 3 is a schematic diagram showing a polishing drum when rounding is performed. FIG. 4 is a schematic diagram showing a polishing drum when taper processing is performed. FIG. 5A is a schematic diagram showing the operation of the polishing drum shown in FIG. 3 among the polishing drums that perform spatula processing. FIG. 5B is a schematic diagram showing the operation of the polishing drum shown in FIG. 4 among the polishing drums that perform spatula processing. FIG. 6 is a plan view showing a modification of the hair bundle processing machine. FIG. 7 is a plan view showing another operation of the hair bundle processing machine shown in FIG. FIG. 8 is a perspective view showing an example of a flat wire transplanter used in a method of manufacturing a brush to which the present invention is applied. FIG. 9 is a plan view showing an example of a hair bundle processing apparatus to which the present invention is applied. 10 is a side view of the hair bundle processing apparatus shown in FIG. FIG. 11 is a plan view showing the configuration of the hair bundle holding mechanism. FIG. 12 is a cross-sectional view showing the configuration of the hair bundle holding mechanism. FIG. 13 is a plan view showing the configuration of the hair bundle discharging mechanism. FIG. 14 is an enlarged plan view showing a state in which the hair bundle discharging mechanism has discharged the hair bundle. FIG. 15 is a schematic diagram showing a polishing drum when rounding is performed. FIG. 16 is a schematic diagram showing a polishing drum when taper processing is performed. FIG. 17A is a schematic diagram showing the operation of the polishing drum shown in FIG. 15 among the polishing drums that perform spatula processing. FIG. 17B is a schematic diagram showing the operation of the polishing drum shown in FIG. 16 among the polishing drums that perform spatula processing. FIG. 18 is a plan view showing a modification of the hair bundle processing apparatus.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this embodiment, the case where the method for manufacturing a brush according to the present invention is applied to the manufacture of a toothbrush will be described as an example.

Further, a hair bundle processing apparatus to which the present invention is applied will be described in detail with reference to the drawings.
In the drawings used in the following description, in order to make the features easy to understand, there are cases in which the portions that become the features are schematically shown for convenience, and the dimensional ratios of the respective components are not always the same as the actual ones. Absent.

  The method for manufacturing a brush to which the present invention is applied includes the first bristles for which the hair ends are processed after the hair ends of the first bristles are subjected to a polishing process. The hair bundle of the second hair, which has been subjected to a taper process that sharpens the tip of the hair in advance by dissolution treatment, is implanted in a plurality of flock holes provided on the flocked surface of the brush, respectively. .

  Specifically, when the method for manufacturing a brush according to the present invention is applied to the manufacture of a toothbrush, first, the first hair and the second hair are prepared. About these 1st hair and 2nd hair, thermoplasticity, such as polyamide (nylon 6-10, nylon 6-12, etc.) and polyester (polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, etc.), for example. The resin is heated and melted, spun by extrusion to form a plurality of monofilaments of a certain thickness, wound through a drawing process and an annealing process, and then bundled into a suitable number (for example, about 5 cm in diameter) ), A paper tape or the like is wound around the outer periphery, or shrink-wrapped with a shrink film, and then cut to a length of about 1 m (this is called hank hair). Further, the hank hair is cut to a desired length in accordance with the hair length of the first hair and the second hair (this is referred to as a cut piece).

  And about the 1st hair, what removed the paper tape and the shrink film from the cut piece obtained in this way is set in the hair supply part 3 of the hair bundle processing machine 1 mentioned later. On the other hand, about the 2nd hair, the tip of the cut piece mentioned above is immersed and dissolved in a hydrolysis solution such as sodium hydroxide or acid, and the diameter gradually decreases toward the hair tip due to the difference in solubility. After tapering, neutralize, wash and dry. The taper hair obtained in this way is prepared in advance as second hair.

  For example, a hair bundle processing machine 1 as shown in FIG. 1 is used when the hair end processing by the polishing process is performed on the hair bundle of the first hair. As shown in FIG. 1, the hair bundle processing machine 1 includes a rotary plate 2 provided with a holding groove 2a for holding the hair bundle B, a hair supply unit 3 for supplying the hair bundle B to the holding groove 2a, The hair collecting section 4 for collecting the hair bundle from the holding groove 2a and a plurality of polishing drums 5 for applying a polishing process to the tip of the hair bundle B held in the holding groove 2a are schematically configured.

The rotating plate 2 is made of a disk-shaped member having a diameter of about 600 mmφ, for example, and is rotatably supported in a horizontal plane and is driven to rotate in one direction by a driving motor (not shown). Further, a plurality of holding grooves 2a are provided at equal intervals on the outer peripheral edge of the rotating plate. These holding grooves 2a have an inner diameter of about 10 mmφ, for example, so as to scrape a predetermined number of hair bundles B supplied from the hair supply unit 3, and cut the outer peripheral edge of the rotating plate 2 in the thickness direction. Is formed.
It should be noted that the hair bundle B scraped off by the holding groove 2a does not fall off the holding groove 2a, and is located along the outer peripheral edge of the rotary plate 2 between the hair supply part 3 and the hair collection part 4. A guide member (not shown) is provided.

  The hair supply part 3 is arranged at a position along the outer peripheral edge of the rotating plate 2. And this hair supply part 3 accommodates the hair group in which the hair (monofilament) before processing was bundled, and while pressing this hair group toward the outer periphery part of the rotating plate 2, predetermined number Are sequentially supplied to the holding groove 2a of the rotary plate 2.

  The hair collection unit 4 is disposed at a position along the outer peripheral edge of the rotary plate 2 on the opposite side to the hair supply unit 3 across a region where a plurality of polishing drums 5 are arranged. And this hair collection | recovery part 4 collect | recovers these processed hair bundles B in the state of a hair group, after extracting sequentially the processed hair bundle B from the holding groove | channel 2a.

  As shown in FIGS. 1 and 2, the plurality of polishing drums 5 are provided side by side in the rotation direction of the rotary plate 2 between the bristle supply unit 3 and the bristle collection unit 4. The plurality of polishing drums 5 are alternately arranged on both upper and lower sides of the outer peripheral edge of the rotating plate 2 in order to polish both ends of the hair bundle B held in the holding groove 2a. .

  The plurality of polishing drums 5 include a rounding process for rounding the bristles, a taper process for sharpening the bristles, and a spatula process for flattening the bristles with respect to the tips of the hair bundles B held in the holding grooves 2a. Apply one of the hair tips.

  Specifically, when rounding is performed, a polishing drum 5A in which a planar polishing body 5a is provided on the outer peripheral surface as shown in FIG. 3 is used. The polishing drum 5A is rotatably supported by the support portion 6A and is rotationally driven by a drive motor (not shown). Further, the support portion 6A is rotatable around an axis orthogonal to the rotation axis (center axis) of the polishing drum 5A.

The tip of the hair bundle B held in the holding groove 2a is provided on the outer peripheral surface of the polishing drum 5A while rotating the polishing drum 5A around the central axis and around an axis orthogonal to the central axis. A polishing process is performed by bringing the tip of the hair bundle B into contact with the planar polishing body 5a.
Thereby, it is possible to perform the rounding process which rounds a hair tip. In addition, if the pressure which presses the front-end | tip of the hair | bristle bundle B to the planar polishing body 5a is strengthened, it is also possible to give what is called a satinization process which processes a hair end into a cone shape, bending the front-end | tip of the bristles B largely. .

On the other hand, when taper processing is performed, a polishing drum 5B having a plurality of protruding polishing bodies 5b provided on the outer peripheral surface as shown in FIG. 4 is used. The polishing drum 5B is rotatably supported by the support portion 6B and is rotationally driven by a drive motor (not shown). Further, the support portion 6B is rotatable around an axis orthogonal to the rotation axis (center axis) of the polishing drum 5B.
The protrusion-like polishing body 5b is obtained by fixing abrasive grains on the surface of a protrusion having a sharp tip, and a plurality of protrusion-like polishing bodies 5b are provided side by side in the circumferential direction and the width direction while standing from the outer peripheral surface of the polishing drum 5B. .

  The tip of the hair bundle B held in the holding groove 2a is provided on the outer peripheral surface of the polishing drum 5B while rotating the polishing drum 5B around the central axis and around the axis orthogonal to the central axis. Polishing is performed by causing the tip of the hair bundle B to enter between the plurality of protruding abrasive bodies 5b. Thereby, it is possible to perform the taper process which sharpens a hair tip. In addition, it is possible to adjust the degree which sharpens a hair tip by adjusting the length of the hair | bristle bundle B entered between the some protruding abrasive | polishing bodies 5b.

  On the other hand, when performing spatula processing, as shown in FIGS. 5A and 5B, any one of the above-described polishing drums 5A and 5B is used. Then, with respect to the tip of the hair bundle B held in the holding groove 2a, the hair is applied to the surface polishing body 5a provided on the outer peripheral surface of the polishing drum 5B while rotating the polishing drum 5B around its central axis. Polishing is performed by bringing the tips of the bundles B into contact with each other or by bringing the tips of the hair bundles B between the plurality of protruding abrasive bodies 5b. The plurality of polishing drums 5A and 5B arranged in the rotation direction of the rotating plate 2 are rotationally driven in the opposite directions to each other. Thereby, it is possible to perform the spatula process which flattens a hair tip. The degree of flattening of the hair tips is adjusted by adjusting the pressure for pressing the tip of the hair bundle B against the planar polishing body 5a, or the length of the hair bundle B that enters between the plurality of protruding polishing bodies 5b. It is possible to adjust.

In this invention, by using such a hair bundle processing machine 1, the hair end processing by the grinding | polishing process is given with respect to the hair bundle of the 1st hair.
The present invention is not necessarily limited to the case where the hair bundle processing machine 1 shown in FIG. 1 is used, and various modifications can be made to the hair bundle processing machine 1. For example, as shown in FIG. 6, two or more hair supply units 3 are arranged at positions along the outer peripheral edge of the rotating plate 2, or two or more hair collection units 4 are arranged. It is also possible to do.

  In this case, two or more types of hairs having different cross-sectional shapes or colors can be supplied from each hair supply unit 3. Moreover, when collect | recovering the hair bundle B after a process, each hair collection | recovery part 4 can collect | recover the hair bundle B for every kind of different hair. Moreover, as shown in FIG. 7, you may make it collect | recover in the state which mixed these different kinds of hair by the one hair collection | recovery part 4. FIG.

  Moreover, in the said hair | bristle bundle processing machine 1, although it has the structure by which the rotating plate 2 was supported rotatably in a horizontal surface, the rotating plate 2 can rotate freely in the surface orthogonal to this horizontal surface. It is also possible to adopt a configuration in which a plurality of polishing drums 5 are alternately arranged side by side on both the left and right sides of the outer peripheral edge of the rotating plate 2 while being supported.

Next, when planting the hair bundle of the first hair and the hair bundle of the second hair in the flock hole, for example, a flat wire transplanter 10 as shown in FIG. 8 is used.
The flat wire transplanter 10 has a brush holding mechanism 11 that holds the brush handle 100 before planting the hair bundle B, and a flocking hole 101 of the brush handle 100 that is held by the brush holding mechanism 11. A hair transplantation head 12 that is operated to move in the possible direction X, a hair bundle supply mechanism 13 that supplies the hair bundle B to the hair transplantation head 12, and a flat wire supply mechanism 14 that supplies a flat wire H to the hair transplantation head 12. I have.

  The brush holding mechanism 11 includes a fixing tool 15 for fixing the head part 100a of the brush handle 100. While the flat hair transplanter 10 is planting the hair bundle B, the head part 100a fixed to the fixing tool 15 is provided. The chuck mechanism 16 is configured to hold the brush handle 100 so that the position is not displaced.

  The fixing tool 15 is disposed at a position facing the tip of the flocking head 12, and a positioning recess 15a for positioning the head section 100a is provided on the facing surface. The fixing tool 15 is attached to a moving table (not shown), and the moving table moves the fixing tool 15 in a direction orthogonal to the direction in which the flocking head 12 sends out the hair bundle B. Thereby, while changing the position of the head portion 100a with respect to the hair transplantation head 12, the hair bundle B of the first or second hair is implanted in any of the plurality of hair transplantation holes 101 to be planted. Is possible.

  In the present invention, the head unit fixed to the fixing tool 15 is not limited to the configuration in which the fixing tool 15 is moved, and the hair transplantation head 12 is moved and operated in a direction orthogonal to the direction of feeding the hair bundle B. It is good also as a structure which changes the position of the flocking head 12 with respect to 100a.

  The flocking head 12 is made of a long member that is slidably supported in a direction X that can be brought into and out of contact with the flocking surface of the head portion 100a, and has a shape in which the tip end portion 12a becomes gradually thinner. In addition, the hair transplantation head 12 is provided with a guide groove 18 that slidably supports a metal hair transplantation needle 17 in the axial direction. Further, a slit 19 penetrating the side surface is provided in the midway portion of the flocking head 12.

  A hair bundle guide groove 20 that guides the hair bundle B supplied from the hair bundle supply mechanism 13 and a flat wire guide that guides the flat wire H supplied from the flat wire supply mechanism 14 are provided at the distal end portion 12a of the flocking head 12. A groove 21 is provided. And these guide grooves 20 and 21 are located on the extension line of the guide groove 18 in which the flocking needle 17 mentioned above is slid.

  The hair bundle supply mechanism 13 has a picker 22 that can enter the slit 19 from one side surface of the flocking head 12 while swinging in the Y direction shown in FIG. The outer peripheral edge of the picker 22 is used to scrape a predetermined number of hair bundles B from the first or second hair group B ′ supplied on a hair plate (not shown). A scraping groove 22a is formed. Further, a guide member 23 along the outer peripheral edge of the picker 22 is arranged between the hair plate and the hair transplanting head 12 so that the hair bundle B scraped off by the scraping groove 22a does not fall off from the scraping groove 22a. Is provided. Then, the hair bundle supply mechanism 13 causes the picker 22 to enter the slit 19 from one side surface of the flocking head 12 and supplies the hair bundle B scraped off by the scraping groove 22 a to the hair bundle guide groove 20.

  The flat wire supply mechanism 14 supplies the belt-like flat wire H ′ wound around the reel 24 from the other side surface of the flocking head 12 and the tip of the supplied flat wire H ′ with a cutter (not shown). The flat wire H is cut to a predetermined length, and the cut flat wire H is supplied to the flat wire guide groove 21.

  In the flat wire flocking machine 10 having the above structure, the brush holding mechanism 11 holds the brush handle 100 and the head portion 100a is fixed to the fixture 15, and then the flocking head 12 is placed on the flocking surface of the head portion 100a. Move in the direction of approach. Then, the hair bundle B is sent out in a direction coinciding with the axis of the flocked hole 101 from the state where the tip 12a of the flocked head 12 is abutted against the flocked surface of the head 100a. That is, when the flocking needle 17 moves forward in the guide groove 18 toward the tip 12a of the flocking head 12, the flocking needle 17 presses the flat wire H supplied to the flat guide groove 21 and The hair bundle B supplied to the hair bundle guide groove 20 together with the line H is sent out to the distal end portion 12a of the flocking head 12. The hair bundle B fed from the tip 12a of the hair transplantation head 12 is folded in half by a flat wire H, and the flat wire H sandwiched therebetween is driven into the hair transplantation hole 101, thereby planting in the hair transplantation hole 101. Will be established.

  After the flocking, the flocking head 12 moves backward in a direction away from the head portion 100a. Thereby, the hair | bristle bundle B is extracted from the front-end | tip part 12a of the flocking head 12, and returns to the position before flocking again. And in this flat wire flocking machine 10, by performing the flocking operation | movement by the flocking head 12 as mentioned above, changing the position of the head part 100a, it is 1st with respect to the arbitrary flocking holes 101 provided in the head part 100a. Alternatively, the hair bundle B of the second hair can be sequentially implanted.

  As described above, according to the present invention, the hair bundle of the first hair that has been subjected to the hair tip processing after the hair tip processing by the polishing process is performed on the hair bundle of the first hair. The hair bundles of the second hairs, which have been previously tapered so as to sharpen the hair tips by dissolution treatment, are implanted in the plurality of flock holes 101 provided in the head portion 100a of the brush handle 100, respectively. Therefore, it is possible to efficiently manufacture the toothbrush while reducing the manufacturing process.

  Further, in the present invention, by using such a manufacturing method, the first bundle of hairs that has been subjected to the hair end processing by the polishing treatment and the taper processing for sharpening the hair tips in advance by the dissolution treatment are performed. It is possible to manufacture a toothbrush in which the bundle of second bristles used is mixed at low cost.

  The hair bundle processing apparatus to which the present invention is applied, for example, as shown in FIGS. 9 and 10, performs hair tip processing by polishing treatment on the hair bundle B of the hair used in the toothbrush, and the hair bundle B A hair bundle transport unit 31 that transports the hair bundle, a hair bundle supply unit 32 that supplies the hair bundle B to the hair bundle transport unit 31, a hair bundle collection unit 33 that collects the hair bundle B from the hair bundle transport unit 31, and a hair bundle There is provided a hair tip processing unit 34 that performs a hair tip processing on the hair bundle B conveyed between the supply unit 32 and the hair bundle recovery unit 33.

  The hair bundle transport unit 31 includes a rotating plate 35 provided with a holding groove 35a for holding the hair bundle B. The rotating plate 35 is made of a disk-shaped member having a diameter of about 600 mmφ, for example. The rotating plate 35 is rotatably supported in a horizontal plane and is driven to rotate in one direction by a drive motor 36.

  A plurality of holding grooves 35 a are provided at equal intervals on the outer peripheral edge of the rotating plate 35. The plurality of holding grooves 35 a have an inner diameter of, for example, about 10 mmφ and have an outer peripheral edge portion of the rotating plate 35 in order to scrape a predetermined number of hair bundles B from the hair bundle group B ′ supplied from the hair bundle supply unit 32. Is formed so as to be cut out in the thickness direction.

  The hair bundle transport unit 31 includes a hair bundle holding mechanism 37 for holding the hair bundle B scraped by the holding groove 35a of the rotating plate 35 in the holding groove 35a. Specifically, as shown in FIGS. 11 and 12, the hair bundle holding mechanism 37 is a holder 38 that holds the hair bundle B in the holding groove 35 a at a position corresponding to each holding groove 35 a of the rotating plate 35. And a tension coil spring 39 that urges the holder 38 toward the direction of holding the hair bundle B.

  The holder 38 is made of a plate material thinner than the rotating plate 35, and is disposed inside the storage groove 40 formed so as to cut the outer peripheral edge of the rotating plate 35 in the circumferential direction, and penetrates the rotating plate 35. The support shaft 41 is rotatably supported. Further, a hook portion 38a for pressing the hair bundle B toward the inner side of the holding groove 35a is provided on one end side of the holding tool 38 facing outward from the storage groove 40.

  On the other hand, a guide pin 42 is attached to the other end side of the holder 38, and the guide pin 42 is disposed inside a guide slit 35 b that penetrates the rotating plate 35. The guide slit 35b guides the guide pin 42 when the holding tool 38 is rotated, the holding position where the hook portion 38a presses the hair bundle B in the storage groove 40, and the hair bundle B formed by the hook portion 38a. It is formed in a substantially circular arc shape with the release position for releasing the press-in. Further, the guide pin 42 protrudes below the lower surface of the rotating plate 35, and a cam roller 42a is rotatably attached to the lower end portion thereof.

  One end of the tension coil spring 39 is hooked on the upper end portion of the guide pin 42 protruding upward from the upper surface of the rotating plate 35, and the other end is hooked on a hooking claw 43 provided on the upper surface of the rotating plate 35. By being hooked, the holding tool 38 is urged toward the direction in which the hair bundle B is held. Note that the holder 38 biased by the tension coil spring 39 is in contact with the inner surface of the storage groove 40 at the holding position, whereby further rotation is restricted.

  Further, below the rotating plate 35, while each holding groove 35 a of the rotating rotating plate 35 passes through the hair bundle supply unit 32, this is in contact with the cam roller 42 a of the holding tool 38 corresponding to each holding groove 35 a. A cam follower 44 that rotates the holding member 38 to the release position against the bias of the coil spring 39 is provided.

  Then, after the contact between the cam follower 44 and the cam roller 42a is released, the holder 38 presses the intermediate portion of the hair bundle B scraped by the holding groove 35a toward the inside of the holding groove 35a. Further, in the hair bundle supply unit 32, the hair bundle B scraped off by the holding groove 35a is prevented from dropping from the holding groove 35a until the holding tool 38 holds the hair bundle B in the holding groove 35a. A hair bundle guide 45 is provided along the outer peripheral edge of the rotating plate 35.

  The hair bundle transport unit 31 can hold the hair bundle B in each holding groove 35a of the rotating rotating plate 35 by such a hair bundle holding mechanism 7, and the hair bundle B held in each holding groove 35a. Are sequentially conveyed from the hair bundle supply unit 32 to the hair bundle collection unit 33.

  The hair bundle supply unit 32 is disposed at a position along the outer peripheral edge of the rotating plate 35. The hair bundle supply unit 32 accommodates the hair bundle group B ′ bundled with unprocessed hair (monofilament) and presses the hair bundle group B ′ toward the outer peripheral edge of the rotating plate 35. However, a predetermined number of hair bundles B are sequentially supplied to the holding grooves 35 a of the rotating plate 35.

  In addition, about the hair (monofilament) before a process, for the purpose of transfer efficiency and cost reduction, for example, the length of about 25-32 mm is obtained by secondary processing a long hair bundle group with a diameter of 50 mm and a total length of 1160-1200 mm. The hair bundle group in the cut piece state is supplied to the hair bundle supply unit 32.

  The hair bundle collection unit 33 is disposed at a position along the outer peripheral edge of the rotating plate 35 on the opposite side of the hair bundle supply unit 32 with the hair tip processing unit 34 interposed therebetween. And this hair bundle collection | recovery part 33 collect | recovers the hair bundle B in which the hair tip processing was given in the hair tip process part 34 in the state of hair bundle group B ''.

  In addition, the hair bundle collection unit 33 has a hair bundle discharge mechanism 46 for discharging the hair bundle B in the holding groove 35a. Specifically, as shown in FIGS. 13 and 14, the hair bundle discharging mechanism 46 is located above the rotating plate 35 and discharges the hair bundle B in the holding groove 35 a to the hair bundle collecting unit 33. It has a tool 47 and an actuator 48 that drives the discharge tool 47.

  On the other hand, below the rotating plate 35, although not shown, a cam follower similar to the cam follower 44 on the hair bundle supply unit 32 side is disposed. Then, while each holding groove 35a of the rotating rotating plate 35 passes through the hair bundle collecting portion 33, the holding roller 38 is pulled by the coil spring 39 while the cam roller 42a of the holding tool 38 corresponding to each holding groove 35a is in contact with the cam follower. It is rotated to the release position against the urging force.

  The hair bundle collecting unit 33 can discharge the hair bundle B subjected to the hair end processing from each holding groove 35a of the rotating rotating plate 35 by such a hair bundle discharging mechanism 46, and the discharged hair bundle B is sequentially collected to the hair bundle collecting unit 33 in the state of the hair bundle group B ″ while pushing up the pusher 49.

  The bristles processing section 34 has a plurality of polishing drums 50 that perform a polishing process on the tips of the hair bundles B held in the holding grooves 35 a of the rotating plate 35. As shown in FIGS. 9 and 10, the plurality of polishing drums 50 are provided side by side in the rotation direction of the rotating plate 35 between the hair bundle supply unit 32 and the hair bundle collection unit 33. The plurality of polishing drums 50 are alternately arranged on both upper and lower sides of the outer peripheral edge of the rotating plate 35 in order to polish both ends of the hair bundle B held in the holding groove 35a. .

  The plurality of polishing drums 50 have a rounding process for rounding the tip of the hair, a taper process for sharpening the tip, and a tip for the tip of the hair bundle B held in each holding groove 35a of the rotating plate 35. Of the spatula processing to be flattened, any hair end processing is performed.

  Specifically, when rounding is performed, a polishing drum 50A in which a planar polishing body 50a is provided on the outer peripheral surface as shown in FIG. 15 is used. The polishing drum 50A is rotatably supported by the support portion 51A and is rotationally driven by a drive motor (not shown). The support 51A is driven to rotate about an axis orthogonal to the rotation axis (center axis) of the polishing drum 50A.

  The tip of the hair bundle B held in the holding groove 35a is provided on the outer peripheral surface of the polishing drum 50A while rotating the polishing drum 50A around the central axis and around an axis orthogonal to the central axis. A polishing process is performed by bringing the tip of the hair bundle B into contact with the planar polishing body 50a. Thereby, it is possible to perform the rounding process which rounds a hair tip. In addition, if the pressure which presses the front-end | tip of the hair | bristle bundle B to the planar polishing body 50a is strengthened, it is also possible to give what is called a satin processing which processes a hair tip into a cone shape, bending the front-end | tip of the hair | bristle bundle B largely. .

  On the other hand, when taper processing is performed, a polishing drum 50B in which a plurality of protruding abrasive bodies 50b are provided on the outer peripheral surface as shown in FIG. 16 is used. The polishing drum 50B is rotatably supported by the support portion 51B and is rotationally driven by a drive motor (not shown). The support portion 51B is driven to rotate about an axis orthogonal to the rotation axis (center axis) of the polishing drum 50B. The protrusion-like polishing body 50b is obtained by fixing abrasive grains on the surface of a protrusion having a sharp tip, and a plurality of protrusion-like polishing bodies 50b are provided side by side in the circumferential direction and the width direction while standing from the outer peripheral surface of the polishing drum 50B. .

  The tip of the hair bundle B held in the holding groove 35a is provided on the outer peripheral surface of the polishing drum 50B while rotating the polishing drum 50B around its central axis and around an axis orthogonal to the central axis. Polishing is performed by causing the tip of the hair bundle B to enter between the plurality of protruding abrasive bodies 50b. Thereby, it is possible to perform the taper process which sharpens a hair tip. In addition, it is possible to adjust the degree which sharpens a hair tip by adjusting the length of the hair | bristle bundle B entered between the some protruding abrasive | polishing bodies 50b.

  On the other hand, when performing spatula processing, as shown in FIGS. 17A and 17B, any one of the above-described polishing drums 50A and 50B is used. Then, with respect to the tips of the hair bundles B held in the holding grooves 35a, the surface polishing provided on the outer peripheral surfaces of the polishing drums 50A and 50B while rotating the polishing drums 50A and 50B around their central axes. Polishing is performed by bringing the tip of the hair bundle B into contact with the body 50a or by allowing the tip of the hair bundle B to enter between the plurality of protruding abrasive bodies 50b.

  The plurality of polishing drums 50A and 50B arranged in the rotation direction of the rotating plate 35 are rotationally driven in the opposite directions to each other. Thereby, it is possible to perform the spatula process which flattens a hair tip. The degree of flattening of the hair tips is adjusted by adjusting the pressure for pressing the tip of the hair bundle B against the planar abrasive 50a or the length of the hair bundle B that enters between the plurality of protruding abrasive bodies 50b. It is possible to adjust.

  In the present invention, by using the above-described hair bundle processing apparatus, it is possible to perform the hair end processing by the polishing process on the hair bundle B of the hair. Moreover, in this hair bundle processing apparatus, while conveying the hair bundle B from the hair bundle supply unit 32 to the hair bundle collection unit 33 while holding the hair bundle B in each holding groove 35a of the rotating rotating plate 35, It is possible to apply a hair end process to both ends of the hair bundle B. Furthermore, in this hair bundle processing apparatus, by applying the hair tip processing to the hair bundle B before flocking in units of hair bundles, the hair tip processing for the hair bundle B before flocking is efficiently and appropriately performed. Is possible.

  Therefore, in the present invention, the hair bundle of hair that has been subjected to hair tip processing using this hair bundle processing device, and the hair bundle of hair that has been subjected to taper processing that sharpens the hair tip by dissolution processing in advance. The hair of the hair that has been subjected to the hair tip processing by such a polishing process without being subjected to the hair tip processing after the hair transplantation by planting the hair into the plurality of hair transplant holes provided in the head part of the brush handle, respectively. It is possible to inexpensively manufacture a toothbrush in which a bundle and a bristle bundle of hair that has been subjected to a taper process for sharpening the bristles by dissolution treatment are mixed.

  In addition, this invention is not necessarily limited to the structure of the hair bundle processing apparatus mentioned above, It is possible to add a various change with respect to this hair bundle processing apparatus. For example, as shown in FIG. 18, two or more hair bundle supply units 32 are arranged at positions along the outer peripheral edge of the rotating plate 35, or two or more hair bundle collection units 33 are arranged. It is also possible to do.

  In this case, each hair bundle supply unit 32 can supply two or more types of hairs having different cross-sectional shapes or colors. Moreover, when collect | recovering the hair bundle B after a process, each hair bundle collection | recovery part 33 can collect | recover the hair bundle B for every different type of hair. Moreover, you may make it collect | recover in the state which mixed the hair for which these kinds differ from one hair bundle collection | recovery part 33. FIG.

  In the above-described hair bundle processing apparatus, the rotary plate 35 is rotatably supported in a horizontal plane. The rotary plate 35 is rotatably supported in a plane orthogonal to the horizontal plane. In addition, a plurality of polishing drums 50 may be alternately arranged on both the left and right sides of the outer peripheral edge of the rotating plate 35.

  In the hair bundle processing apparatus, a plurality of polishing drums 50 are arranged on both upper and lower sides across the outer peripheral edge of the rotating plate 35, and both ends of the hair bundle B held in the holding grooves 35 a of the rotating plate 35. However, it is also possible to polish only one end of the hair bundle B by pausing the upper or lower polishing drum 50. In the present invention, it is also possible to adopt a configuration in which a plurality of polishing drums 50 are disposed only on one of the upper and lower sides across the outer peripheral edge of the rotating plate 35.

  Hereinafter, the effects of the present invention will be made clearer by examples. In addition, this invention is not limited to a following example, In the range which does not change the summary, it can change suitably and can implement.

  In the present Example, each toothbrush of Examples 1-5 was produced using the manufacturing method of the brush to which this invention was applied. Table 1 below summarizes the toothbrushes of Examples 1 to 5.

  According to the present invention, when manufacturing a toothbrush in which a bristles that need a bristling process shown in Table 1 and a bristles that do not require a bristling process are mixed, the manufacturing process is reduced. Such a toothbrush can be efficiently manufactured.

  Note that the present invention is not limited to the case of manufacturing a brush for oral cleaning such as the above-described toothbrush, but a brush in which bristles that require hair tip processing and taper hair that does not require hair tip processing are mixed. It is possible to apply widely when producing. Furthermore, the present invention is not limited to the case of processing a mouth washing brush such as the above-described toothbrush, and can be widely applied to a hair bundle processing apparatus that performs hair end processing of a hair bundle.

DESCRIPTION OF SYMBOLS 1 Hair bundle processing machine 2 Rotating plate 2a Holding groove 3 Hair supply part 4 Hair collection | recovery part 5 Polishing drum 5a Planar polishing body 5b Protruding polishing body 10 Flat wire flocking machine 11 Brush holding mechanism 12 Flocking head 13 Hair bundle supply Mechanism 14 Flat wire supply mechanism 31 Hair bundle transport section 32 Hair bundle supply section 33 Hair bundle collection section 34 Hair tip processing section 35 Rotating plate 35a Holding groove 35b Guide slit 36 Drive motor 37 Hair bundle holding mechanism 38 Holding tool 38a Hook section 39 Tension coil spring 40 Storage groove 41 Support shaft 42 Guide pin 42a Cam roller 43 Stopping claw 44 Cam follower 45 Hair bundle guide 46 Hair bundle discharge mechanism 47 Discharge tool 48 Actuator 50, 50A, 50B Polishing drum 50a Surface abrasive 50b Protruding abrasive

Claims (13)

  After subjecting the hair bundle of the first hair to a hair tip process by polishing, the hair tip of the first hair to which this hair tip processing has been applied and the hair tip are sharpened by a dissolution treatment in advance. A method for manufacturing a brush, characterized in that the second bristles that are tapered are planted in a plurality of flock holes provided on a flocked surface of the brush.   2. The hair tip processing according to claim 1, wherein any one of rounding processing for rounding the tip, taper processing for sharpening the tip, and spatula processing for flattening the tip is applied. Brush manufacturing method.   In the hair end processing, a rotating plate provided with a plurality of holding grooves for holding the hair bundle arranged in the outer peripheral edge, a hair supply portion for supplying the hair bundle to the holding groove, and a hair bundle from the holding groove. A bristles collecting portion to be collected, and a polishing drum having a planar polishing body or a plurality of protruding polishing bodies provided on the outer peripheral surface thereof, rotating the rotating plate, and at least one or both of the rotating plates While rotating the polishing drum arranged on the surface side around the central axis and / or around the axis orthogonal to the central axis, the tip of the hair bundle held in the holding groove of the rotating plate The method for producing a brush according to claim 1 or 2, wherein a hair bundle processing machine for polishing with a protruding abrasive body is used.   Disposing at least two or more hair supply parts at positions along the outer peripheral edge of the rotating plate, and supplying two or more kinds of hairs having different cross-sectional shapes or colors from the hair supply part The method for manufacturing a brush according to claim 3. At least one or two or more hair collecting parts are arranged at positions along the outer peripheral edge of the rotating plate, and the hair collecting part collects a hair bundle for each different type of hair, or The method for producing a brush according to claim 4, wherein different types of hairs are collected in a state of being mixed by a single hair collecting unit.
  When the first bristles and the second bristles are planted in the flock holes, the flocking is moved in a direction that can be moved toward and away from the flock holes of the brush. A hair bundle supply mechanism for supplying a hair bundle to the flocking head, and a flat wire supply mechanism for supplying a flat wire to the flocking head, and folding the hair bundle fed out from the tip of the flocking head in half The brush according to any one of claims 1 to 5, wherein a flat wire flocking machine is used, in which a hair bundle is implanted by driving a flat wire sandwiched therebetween into a flock hole of the brush. Manufacturing method.   The toothbrush manufactured by the method as described in any one of Claims 1-6. A hair bundle conveyance unit for conveying the hair bundle;
A hair bundle supply unit for supplying a hair bundle to the hair bundle conveyance unit;
A hair bundle collection unit for collecting the hair bundle from the hair bundle conveyance unit;
A hair bundle processing apparatus comprising: a hair tip processing unit that performs hair tip processing on a hair bundle conveyed between the hair bundle supply unit and the hair bundle collection unit.   The hair bundle transporting unit is provided with a rotating plate provided with a plurality of holding grooves arranged on the outer peripheral edge portion for scraping a predetermined number of hair bundles from a group of hair bundles supplied from the hair bundle supplying unit, and the holding groove. The hair bundle processing apparatus according to claim 8, further comprising a hair bundle holding mechanism that holds the taken hair bundle in the holding groove.   The hair bundle processing apparatus according to claim 9, wherein the hair bundle collection unit includes a hair bundle discharge mechanism that discharges the hair bundle in the holding groove. The hair end processing portion has a polishing drum provided with a planar polishing body or a plurality of protruding polishing bodies on the outer peripheral surface;
The polishing drum is disposed on at least one or both surface sides of the rotating plate, and rotates around the central axis and / or about the axis perpendicular to the central axis, and the tip of the hair bundle is formed into the planar shape. The hair bundle processing apparatus according to any one of claims 8 to 10, wherein polishing is performed with a polishing body or a protruding polishing body.   The hair bundle supply unit according to any one of claims 9 to 11, wherein at least one or two or more of the hair bundle supply units are arranged at positions along an outer peripheral edge of the rotating plate. Processing equipment.   The hair bundle recovery unit according to any one of claims 9 to 12, wherein at least one or two or more of the hair bundle collection units are arranged at positions along the outer peripheral edge of the rotating plate. Processing equipment.

Images