JP2005287842A - Device of manufacturing brush unit of rotary brush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device of manufacturing a brush unit capable of easily cutting off welding remains left in a bristle group and collecting the welding remains when manufacturing the brush unit of a rotary brush used in a rotary toothbrush. <P>SOLUTION: The device comprises a base 3 with insertion holes 9 and 11 for inserting the bristle group 1 consisting of a number of bristles 1a gathered in bundles, a chuck 20 for gripping and holding the bristle group 1, making a prescribed quantity of bristles project from the insertion hole 11 of the base 3, a nozzle 35 for opening the bristle group 1 in the radial directions by blowing air into the center of the projecting end of the bristle group 1, a presser body 30 for fastening the radially-opened bristle group 1 to the base 3, a welding machine 37 for welding the center region of the bristle group 1 fastened to the base 3, and a cutter 40 for cutting off the center of the welded part welded by the welding machine 37. The device also has a slide blade 15 on the base 3 for cutting and removing the welded remains 75 left at ends of the bristle group 1 from the bristle group, and a groove 6 for discharging the cut welding remains 75 from the base 3 is formed on the pedestal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for manufacturing a single brush of a rotating brush used for a rotating toothbrush suitable for removing plaque adhering to a tooth and massaging a gum.

The inventor has previously proposed a method and an apparatus for manufacturing a rotating toothbrush (Patent Document 1). The content is that one end of a group of strands made of many strands of nylon or the like assembled in a bundle is projected from the pedestal and spread radially with air, the central portion is welded, and the central portion of the welded portion is excised A sheet-like brush is produced. A large number of the brushes are overlapped to form a rotating brush, and the rotating brush is supported on one end of the handle member so as to rotate freely.
JP 2003-289947 A

  However, in the manufacturing apparatus for manufacturing the brush unit, when the central portion of the welded portion is cut out, the remaining portion of the weld remains at the upper end of the strand group. And this welding remaining part was cut | disconnected from the strand group by the slide blade, and it was set as the structure pushed out above a base. In this case, the welding residue was scattered on the floor or the like, and it took time and effort to recover.

  The present invention has been made in view of the above circumstances, and a main object of the present invention is to provide an apparatus for manufacturing a brush unit of a rotating brush used in a rotating toothbrush that can easily collect a welding residue. It is in.

  In order to achieve the above object, a rotating brush manufacturing apparatus for a rotating brush according to the present invention is a circular brush manufacturing apparatus for stacking a large number of sheets to form a rotating brush. A pedestal provided with an insertion hole through which the strand group assembled in a bundle is passed, a chuck that holds the strand group and protrudes a fixed amount from the insertion hole of the pedestal, and the center of the protruding end of the strand group The nozzle that opens the wire group in the radial direction by blowing air into the wire, the presser that fixes the radially opened wire group to the pedestal, and the central part of the wire group with the wire group fixed to the pedestal A welding machine for welding, and a cutting tool for cutting a central portion of a welding portion by the welding machine, and the base is cut by cutting the remaining welding portion left at the end of the strand group by cutting with the cutting tool. A slide blade is provided to be removed from the wire group, and the cut welding residue The wherein the groove for discharging are formed from the base.

  Preferably, in addition to the above-described configuration, after the excision with the excision tool, a pushing means for pushing the welding remaining portion left at the end of the strand group downward with respect to the pedestal, and the completed after remaining on the pedestal An apparatus for manufacturing a brush unit of a rotating brush, further comprising a recovery device for recovering the brush unit.

Preferably, in addition to each of the above-described configurations, the tip of the nozzle is formed in a spherical shape, and the tip of the nozzle is inserted while blowing air from the protruding end of the strand group to the strand group, thereby making the strand group radial. It is the manufacturing apparatus of the brush single-piece | unit of the rotating brush characterized by opening.
Furthermore, the present invention is a rotating brush formed of a single brush manufactured using any of the manufacturing apparatuses described above, or a rotating toothbrush equipped with the rotating brush.

  According to the apparatus for manufacturing a brush unit of a rotating brush of the present invention, it is possible to easily collect the welding residue.

Hereinafter, the manufacturing apparatus of the brush single-piece | unit of the rotating brush of this invention is demonstrated still in detail based on an Example. A single brush manufactured by the apparatus of the present embodiment is formed from a group of strands 1 made of bundles of strands 1a made of thermoplastic resin such as nylon, and is formed into a thin circular sheet. Become. A large number of the brushes are stacked to form a rotating brush 90, and the rotating brush 90 is attached to the handle member 85 to form a rotating toothbrush as shown in FIG.
FIG. 1 is a front view showing an apparatus for manufacturing a single brush of a rotating brush according to the present invention. 2 is a partial cross-sectional view of the apparatus of FIG. 1, and FIG. 3 is an exploded perspective view of FIG.

  The manufacturing apparatus according to the present embodiment includes a pedestal 3 placed on the fixed base 2 of the apparatus provided horizontally, a chuck 20 provided below the pedestal 3 so as to be movable up and down, and movable up and down above the pedestal 3. The presser body 30 is provided. Thus, the chuck 20, the pedestal 3, and the presser body 30 are arranged in a line in the vertical direction in order from the bottom, but the nozzle 35 and the welding can be switched to a further upper position corresponding to the line and movable up and down. A machine 37 and a cutting tool 40 are provided.

  In the manufacturing apparatus of the present embodiment, a first frame 51 is provided vertically upward with respect to the fixed base 2, and a second frame 52 extending in the lateral direction is formed on the first frame 51. On the other hand, it can be moved up and down. A mounting base 50 is provided so as to be laterally movable with respect to the second frame 52, and the nozzle 35, the welding machine 37, and the cutting tool 40 are attached to the mounting base 50 adjacent to each other.

  The pedestal 3 includes a lower pedestal 4 fixed to the fixed base 2 of the apparatus main body and an upper pedestal 10 placed on the upper part of the lower pedestal 4. The lower pedestal 4 includes a square plate-like base 5 and a columnar insertion portion 8 provided to protrude downward from the center of the lower surface of the base 5.

  On the upper surface of the base 5, a U-shaped groove 6 that opens upward is formed along the left-right direction at the center in the front-rear direction (FIG. 3). Further, on the left side of the center of the groove 6 in the left-right direction, the center part in the front-rear direction is recessed downward along the left-right direction to form a deep groove part 6a.

  In the lower pedestal 4, a stepped insertion hole 9 through which the wire group 1 is passed from the center of the upper surface of the base 5 to the center of the lower surface of the insertion portion 8 extends along the vertical direction, that is, the axial direction of the insertion portion 8. Are formed through. The insertion hole 9 has a small diameter hole 9 a at the top and a large diameter hole 9 b at the bottom, and the upper end of the small diameter hole 9 a opens at the bottom of the groove 6 of the base 5. In the illustrated insertion hole 9, a small-diameter hole 9 a is formed in the base 5, and a large-diameter hole 9 b is formed in the insertion portion 8. The lower pedestal 4 is formed at the four corners of the base 5 while the insertion portion 8 is inserted into the hole 2 a formed in the fixed base 2 of the apparatus, while the base 5 is placed on the upper surface of the fixed base 2. Bolts (not shown) are screwed into the holes 5a, and the base 5 and the fixing base 2 are fixed.

  The upper pedestal 10 has a disk shape having a diameter of the same size as one side of the base 5 of the lower pedestal 4, and an insertion hole 11 through which the strand group 1 is passed along the axial direction. It is formed through. The diameter of the insertion hole 11 is the same as the diameter of the small diameter hole 9 a of the insertion hole 9 formed in the lower base 4. The insertion hole 11 of the upper base 10 and the small diameter hole 9a of the insertion hole 9 of the lower base 4 are arranged concentrically.

  A U-shaped groove 12 that opens downward is formed in the lower surface of the upper base 10 along the radial direction. In this embodiment, the right side of the center of the groove 12 in the left-right direction protrudes downward to form a shallow groove portion 12a. The width of the groove 12 of the upper pedestal 10 is the same as the width of the groove 6 of the lower pedestal 4. The upper pedestal 10 is placed on the lower pedestal 4 so that the groove 12 extends in the left-right direction and the shallow groove portion 12a is disposed on the right side. At that time, the upper pedestal 10 is placed on the upper surface of the lower pedestal 4 so that the groove 12 thereof corresponds to the groove 6 of the lower pedestal 4, and is fixed to the lower pedestal 4 by the bolt 100.

  By the way, a leaf spring 14 is attached to the right end portion of the groove 12 of the upper pedestal 10, that is, the right end portion of the shallow groove portion 12a. The leaf spring 14 has a width dimension that fits into the groove 12 of the upper pedestal 10. The right end portion 14a of the leaf spring 14 is fixed to the upper pedestal 10 with a screw 101, and the left end portion 14b extends downward.

A slide blade 15 is provided in the groove 6 of the lower pedestal 4 so as to advance and retreat along the groove 6.
The slide blade 15 has an elongated rectangular plate shape, and a left end portion 15a thereof is formed in a blade shape. Further, the width dimension corresponds to the width of the groove 6 of the lower pedestal 4, and the thickness also corresponds to the depth of the groove 6. Therefore, when the slide blade 15 is disposed in the groove 6 of the lower pedestal 4, the upper surface of the base 5 and the upper surface of the slide blade 15 are flush with each other. The slide blade 15 is disposed on the right side of the groove 6 of the lower pedestal 4 with its blade edge 15a facing the deep groove portion 6a. As shown in FIG. 1, the slide blade 15 is connected to a moving mechanism 17 having a piston or the like at the right end thereof, and can advance and retreat along the groove 6 of the lower pedestal 4. Further, the slide blade 15 is urged downward by a leaf spring 14 provided in the groove 12 of the upper pedestal 10, and the vertical movement is restricted to prevent lifting.

Referring to FIG. 2, the chuck 20 includes a casing 21 provided with an air supply / discharge pipe 24 connected to a compressor, and a cylindrical elastic member 25 disposed inside the casing 21.
The casing 21 has a cylindrical shape, and its upper and lower ends are closed. Holes 22a and 23a through which the wire group 1 is passed are formed in the centers of the upper and lower walls 22 and 23 of the casing 21 along the axial direction. Further, the air supply / discharge pipe 24 is provided on the peripheral side wall of the casing 21 so as to communicate between the inside and the outside.

  The elastic member 25 has a cylindrical shape made of an elastic material such as rubber, and flanges 25a and 25a are formed on the upper and lower ends thereof. In the present embodiment, the diameter of the flange 25a corresponds to the inner diameter of the casing 21. The elastic member 25 is disposed so that the central hole 25 b communicates with the holes 22 a and 23 a of the upper and lower walls 22 and 23 of the casing 21. Further, the upper and lower flanges 25a and 25a of the elastic member 25 are in contact with the inner surfaces of the upper and lower walls 22 and 23 of the casing 21, respectively, so that the periphery of the elastic member 25 is airtight. The chuck 20 having such a configuration grips and releases the wire group 1 inserted into the inside of the chuck 20 by supplying and discharging air from the pipe 24 into the casing 21 and expanding and contracting the elastic member 25.

  At the upper part of the chuck 20, a cylindrical guide member 27 having a flange 27 a formed at the lower end is erected. The outer diameter of the guide member 27 corresponds to the diameter of the large diameter hole 9 b of the insertion hole 9 of the lower pedestal 4, and the inner diameter is the same as that of the small diameter hole 9 a of the insertion hole 9 of the lower pedestal 4. The upper portion of the guide member 27 is inserted into a large-diameter hole 9 b of an insertion hole 9 formed in the insertion portion 8 of the lower pedestal 4. In the large diameter hole 9 b of the insertion hole 9 of the lower pedestal 4, a coil spring 29 is disposed between the upper end portion of the guide member 27 and the stepped portion 9 c of the insertion hole 9. The coil spring 29 has the same diameter as the large-diameter hole 9 b of the insertion hole 9, and an upper end portion of the coil spring 29 abuts on a lower end surface of the stepped portion 9 c of the insertion hole 9 and a lower end portion abuts on an upper surface of the guide member 27. It arrange | positions in the base 4 and urges | biases the guide member 27 below.

  A presser body 30 is provided above the pedestal 3. The presser body 30 includes a cylindrical presser body 31 having a flange 31 a and a plate-like presser support body 33 that holds the presser body 31. The center hole 32 of the presser body 31 is an insertion hole into which the nozzle 35, the welding machine 37 and the cutting tool 40 are inserted.

The presser support 33 has a substantially rectangular plate shape, and a hole 33a into which the presser main body 31 can be inserted is formed in the center in the vertical direction. The upper end portion of the presser body 31 is inserted into the hole 33 a of the presser support body 33, and the collar 31 a is in contact with the lower surface of the presser support body 33. Then, a screw (not shown) is screwed into the collar 31 a of the presser body 31 from the presser support body 33, and the presser body 31 is fixed to the presser support body 33.
The presser support 33 is attached to the first frame 51, and the entire presser 30 can freely move up and down along a center line passing through the centers of the insertion holes 9 and 11 of the base 3.

  The tip of the nozzle 35 is shaped like a round bar that can be inserted into the hole 32 of the presser body 31, and an air passage 35 a connected to the compressor is formed inside the center of the nozzle 35. Further, the tip 35b of the nozzle 35 of the present embodiment has a shape projecting downward in a hemispherical shape (FIG. 4).

The welding machine 37 has a cylindrical shape whose tip 37a can be inserted into the hole 32 of the presser body 31, and for example, an ultrasonic welding machine is used. In this embodiment, a high-frequency welding machine is used.
The cutting tool 40 has a cylindrical shape whose tip can be inserted into the hole 32 of the presser body 31, and has approximately the same diameter as the insertion hole 11 of the upper base 10. Further, the distal end 40a of the cutting tool 40 is formed in a cutting edge shape, and in this embodiment, it is formed in the shape of a punch blade.

  As described above, the nozzle 35, the welding machine 37, and the cutting tool 40 are attached adjacent to the mounting base 50 extending in the lateral direction. The mounting base 50 is attached to a second frame 52 provided on the first frame 51 so as to freely move up and down at a position above the presser body 30. Therefore, the nozzle 35, the welding machine 37, and the cutting tool 40 are movable in the left and right and up and down two-dimensional directions, and the nozzle 35, the welding machine 37, and the cutting tool 40 are positioned above the presser body 30. Switchable.

In addition, the manufacturing apparatus of the present embodiment is provided with a hand machine 43 that collects the brush alone from the pedestal 3.
The hand machine 43 includes a cylindrical main body 44 whose both ends are closed, and a basket 46 disposed inside the main body 44 (FIG. 10). A hole 45a is formed through the center of the tip wall 45 of the main body 44 along the axial direction. In addition, four air outlet holes 45b are formed around the hole 45a at equal intervals in the circumferential direction.

  The basket 46 has a cylindrical shape with a closed end, and the outer diameter thereof corresponds to the inner diameter of the main body 44. At the center of the front end surface 47 of the cage 46, a round bar-shaped bar member 48 is integrally provided so as to protrude toward the front end side. The rod member 48 has a diameter that can be inserted into the insertion hole 11 of the upper pedestal 10, and the axial dimension is longer than the thickness of the upper pedestal 10. In addition, four air outlet holes 47a are formed around the bar member 48 at equal intervals in the circumferential direction.

  The cage 46 is provided inside the main body 44 with the rod member 48 protruding downward from the hole 45 a of the main body 44. Further, the cage 46 is positioned in the circumferential direction so that the air outlet hole 47a communicates with the air outlet hole 45b of the main body 44. Further, an air passage 47 b connected to a suction pump (vacuum pump) through the main body 44 is formed in the cage 46.

As shown in FIG. 1, one end of a horizontally provided arm 55 is connected to the main body 44 of the hand machine 43, and the other end of the arm 55 is connected to a drive shaft 56 arranged in the vertical direction. ing. Thereby, the hand machine 43 can be rotated on a plane around the other end of the arm 55. A drive source including the drive shaft 56 is provided in the moving mechanism 57 so as to be movable up and down, and the hand machine 43 is also movable up and down along with the vertical movement. In the illustrated example, the drive source to which the hand machine 43 is connected is disposed on the left side of the pedestal 3.
Further, below the hand machine 43, a thin wire for collecting a single brush, for example, a wire 60, is detachably installed on the base.

A method of manufacturing a brush unit using the manufacturing apparatus having such a configuration will be described below.
2 and 4 to 11 show each manufacturing process of the brush unit by the manufacturing apparatus of the present invention.

  First, the wire group 1 is inserted into the chuck 20 and the insertion hole 9 (the guide member 27 and the coil spring 29) of the lower pedestal 4. Then, air is supplied from the compressor into the casing 21 of the chuck 20, and the elastic member 25 inside thereof is expanded inward, whereby the strand group 1 is gripped. Thereafter, as shown in FIG. 2, the chuck 20 is moved upward, and the strand group 1 is held in a state of protruding a certain amount upward from the insertion hole 11 of the upper base 10.

Next, when the mounting base 50 moves laterally along the groove of the second frame 52 and the nozzle 35 provided on the mounting base 50 reaches a position directly above the insertion hole 9 (11) of the base 3, The base 50 moves down along the groove of the first frame 51 with the second frame 52. As a result, as shown in FIG. 4, the nozzle 35 enters the insertion hole 32 of the presser body 31 of the presser body 30. As shown in FIG. 5, the nozzle 35 further moves downward, and air is blown from the air passage 35 a of the nozzle 35 into the center of the upper end of the strand group 1 protruding upward from the insertion hole 11 of the upper base 10. Thus, the strand group 1 is opened in the radial direction.
Since the tip 35b of the nozzle 35 is formed in a hemispherical shape, there is little friction even if it contacts the strand group 1, and the strand group 1 spreads radially and evenly.

Thereafter, the presser body 30 is moved downward, and the wire group 1 is fixed on the base 3 by the presser body 31 in a state where the wire group 1 is radially opened as shown in FIG. 2 and 4 to 6, the chuck 20 is in the upward movement position.
And the 2nd flame | frame 52 with the mounting base 50 moves up along the groove | channel of the 1st flame | frame 51, and the nozzle 35 reverse | retreats upwards. As shown in FIG. 7, when the wire group 1 is opened and fixed on the base 3 by the presser body 30, the air in the casing 21 of the chuck 20 is discharged. When the elastic member 25 inside the casing 21 is loosened, the strand group 1 is released, and in this state, the chuck 20 returns to the original position below.

Following this, the mounting base 50 moves laterally along the groove of the second frame 52, and the welding machine 37 is moved to a position directly above the strand group 1 of the base 3. 50 moves down along the groove of the first frame 51 again with the second frame 52.
Thus, as shown in FIG. 8, in a state where the opened strand group 1 is fixed to the base 3 by the presser body 30, the welding machine 37 passes through the insertion hole 32 of the presser body 31 and the strand group 1. Descent to the position just above the center. Then, the tip of the welding machine 37 welds a circular area around the center of the opened wire group 1 that is slightly larger than the diameter of the insertion hole 11 of the upper base 10.

  After the welding, the second frame 52 with the mounting base 50 moves upward, so that the welding machine 37 is retracted upward from the presser body 30 and returned to the original position, and further moved laterally so that the cutting tool 40 is pedestal. 3 is moved to a position directly above the three insertion holes 9 and 11. At this position, the mounting base 50 moves downward along the groove of the first frame 51 with the second frame 52. As a result, as shown in FIG. 9, the distal end 40 a of the resecting tool 40 passes through the insertion hole 32 of the presser body 30 and enters a part of the insertion hole 11 of the upper base 10. At this time, the central portion of the welded portion of the opened wire group 1 is cut into a circular shape by the cutting edge of the tip 40 a of the cutting tool 40 and the upper end of the insertion hole 11 of the upper base 10. As a result, an annular welded portion 70 remains at the center of the opened wire group 1.

  Thereafter, the cutting tool 40 is retracted upward, and the presser body 30 is also retracted upward. On the pedestal 3, a hub 70 (welding portion) is provided at the center, and the hub 70 radially extends. A sheet-like brush unit 72 from which a large number of bristle legs 71 (wires 1a) are projected remains.

  By the way, as shown in FIG. 9, when the central portion of the welded portion 70 of the strand group 1 is excised with the excision tool 40, the cutting edge of the tip 40 a of the excision tool 40 enters the insertion hole 11 of the upper base 10. Therefore, the remaining welding portion 75 left at the tip of the strand group 1 remains in a state of being pushed into the insertion hole 11 of the upper base 10.

  Next, the hand machine 43 is rotationally moved to a position directly above the insertion hole 11 of the upper base 10. Then, as shown in FIG. 10, the hand machine 43 moves downward, and the bar member 48 of the hand machine 43 hits the welding remaining portion 75 and pushes the welding remaining portion 75 into the grooves 6 and 12 of the upper and lower pedestals 4 and 10. The tip wall 45 of the hand machine 43 comes into contact with the hub 70 of the brush unit 72.

  The brush unit 72 is adsorbed to the distal end wall 45 of the main body 44 of the hand machine 43 by the suction force of the suction pump connected to the hand machine 43 through the air outlet holes 47a and 45b. As shown in FIG. 11, the hand machine 43 moves up in a state where the brush 72 is adsorbed, and further rotates to return to the original position. Thereafter, the suction pump is stopped, and the brush unit 72 is dropped so as to pass through the wire 60 erected on the stand (FIG. 1). Such steps are sequentially repeated, and the brush unit 72 is stacked on the wire 60.

  Further, when the brush unit 72 is collected by the hand machine 43, the slide blade 15 advances along the groove 6 of the lower pedestal 4, and the lower position of the welding remaining portion 75 left at the upper end portion of the strand group 1 is set. Disconnect. The cut welding residue 75 is pushed out to the deep groove 6 a side by the slide blade 15, discharged to the outside of the pedestal 3, and accommodated in a collection box provided on the extended line of the groove 6. In the present embodiment, a deep groove portion 6 a is formed in a part of the groove 6 of the lower pedestal 4, and a shallow groove portion 12 a is formed in a part of the groove 12 of the upper pedestal 10. Therefore, even if the welding remaining portion 75 adheres to the slide blade 15, when the slide blade 15 moves backward, it is surely peeled and discharged by the step between the groove 6 and the deep groove portion 6a or the step between the groove 12 and the shallow groove portion 12a. . In this embodiment, the slide blade 15 advances twice along the groove 6 of the lower pedestal 4 in order to reliably cut and collect the welding residue 75. Thus, according to the manufacturing apparatus of the present embodiment, it is possible to reliably recover the welding residue 75.

  By the way, as described above, when the central portion is removed by the cutting tool 40 while leaving at least a part of the welding portion of the wire group 1, as shown in FIG. 9, the welding remaining portion 75 is an insertion hole of the upper base 10. 11 is pushed into the state. The welding residue 75 causes a part of the wire group 1 to swell radially outward in the insertion holes 9 and 11 of the base 3. However, by providing the guide member 27 and the coil spring 29 on the lower pedestal 4, it is possible to prevent the strand 1a from bulging outward in the radial direction. Moreover, by keeping the length of the coil spring 29 longer than the vertical length of the insertion hole 9 when the guide member 27 is moved down most, when the guide member 27 moves up and down, the wire 1a swells at any position. Can be prevented. Accordingly, the strand group 1 can be smoothly fed upward by the chuck 20 without the strand group 1 being caught in the insertion holes 9 and 11.

12 is a cross-sectional view showing a state in which a brush is inserted into the first axial pipe, and FIG. 13 is a cross-sectional view showing a state in which the second axial pipe is attached to the first axial pipe. It is.
A predetermined number of brushes 72 stored in the wire 60 are inserted into the shaft pipe 76. The axial pipe 76 of the present embodiment includes a first axial pipe 77 and a second axial pipe 78. The first axial pipe 77 has a cylindrical shape, and a flange 77a is formed at one end thereof. The second axial pipe 78 has a cylindrical shape, and a flange 78a is formed at one end thereof. The outer diameter of the second axial pipe 78 is the same as the inner diameter of the first axial pipe 77, and the axial dimension thereof is the same length as the first axial pipe 77.

First, as shown in FIG. 12, a predetermined number of brushes 72 are inserted into the first axial pipe 77. Thereafter, as shown in FIG. 13, the other end portion of the second axial pipe 78 is inserted from the other end side of the first axial pipe 77, and the first axial pipe 77 and the second axial pipe 78 are connected. Mated.
As a result, a predetermined number of brush units 72 are fixed on the axial pipe 76, and the rotating brush 90 is manufactured. In addition, the bristle feet 71 of each brush unit 72 of the rotating brush 90 are aligned by a cutter or the like and subjected to a finishing process.

14 and 15 are cross-sectional views for explaining a state when the rotating brush obtained as described above is set on the handle member of the rotating toothbrush. FIG. 16 is a perspective view of a rotating toothbrush equipped with a rotating brush.
First, the support shaft 88 is inserted into the rotating brush 90. The support shaft 88 has a stepped cylindrical shape having reduced diameter portions 89 and 89 at both ends. The support shaft body 88 a at the center of the support shaft 88 can be inserted into the second shaft pipe 78, and has a slightly longer shaft dimension than the shaft pipe 76.
Then, as shown in FIG. 14, the rotating brush 90 having the support shaft 88 inserted is interposed between the support pieces 86, 86 on both sides formed at one end in the length direction of the handle member 85. The support piece 86 is formed with a notch 86c whose width decreases from the upper end toward the lower side (FIG. 16), and a circular hole 86a is formed at the lower end of the notch 86c. . A recessed portion 86b is formed on the outer surface of the support piece 86 corresponding to the circular hole 86a.

In the rotating brush 90 into which the support shaft 88 is inserted, the reduced diameter portion 89 of the support shaft 88 is pushed from above into a cut portion 86c formed in the support piece 86, and the reduced diameter portion 89 is disposed in the circular hole 86a. Then, as shown in FIG. 15, the rotary brush 90 is rotatably supported by the handle member 85 via the support shaft 88 by crushing the reduced diameter portions 89 at both ends of the support shaft 88.
At this time, the crushing portion 89a is disposed in the recessed portion 86b, and the support shaft 88 cannot be rotated. Thereby, the rotating brush 90 is smoothly rotated around the support shaft 88. In this way, a rotating toothbrush in which the rotating brush 90 is rotatably attached to one end in the length direction of the handle member 85 via the support shaft 88 is formed as shown in FIG.

  As described above, according to the apparatus for manufacturing a single brush of the rotating brush of the present invention, it is possible to reliably recover the welding residue remaining at the end of the strand group by excision with the excision tool. It can be omitted.

The apparatus for manufacturing a brush unit of a rotating brush according to the present invention is not limited to the configuration of each of the above embodiments, and can be changed as appropriate.
For example, in the above embodiment, the hand machine is provided with both the pushing means and the suction means, but they may be provided separately.

It is a front view which shows one Example of the manufacturing apparatus of the brush single-piece | unit of the rotating brush of this invention. It is sectional drawing of a part of manufacturing apparatus of FIG. FIG. 3 is an exploded perspective view of FIG. 2. It is sectional drawing which shows the state which the nozzle moved below from the state of FIG. It is sectional drawing which shows the state which the nozzle moved further downward from the state of FIG. It is sectional drawing which shows the state which the presser body moved below from the state of FIG. It is sectional drawing which shows the state which the nozzle moved upwards from the state of FIG. It is sectional drawing which shows the state which the welding machine moves below from the state of FIG. 7, and is welding. It is sectional drawing which shows the state from which the welding machine moved upwards from the state of FIG. 8, and the excision tool moved below and excising the center part of the welding part. FIG. 10 is a cross-sectional view showing a state in which the hand machine is rotated to the upper position of the brush unit and further moved downward after the excision tool and the presser body move upward from the state of FIG. 9. It is sectional drawing which shows the state which adsorb | sucked the brush single-piece | unit from the state of FIG. 10, the hand machine moved upwards, and the slide blade has cut | disconnected the welding remainder part. It is sectional drawing which shows the state which has inserted the brush single-piece into the 1st axial center pipe. It is sectional drawing which shows the state which has mounted | worn with the 2nd axial pipe in the 1st axial pipe. It is sectional drawing which shows the state which has arrange | positioned the rotating brush by which the spindle was inserted in the end of the handle member. It is sectional drawing which shows the state which crushed both ends of the spindle from the state of FIG. It is a perspective view of the rotation toothbrush equipped with the rotation brush.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Strand group 1a Strand 2 Fixed base 3 Base 4 Lower base 5 Base 6 Groove 6a Deep groove 8 Insertion part 9 Insertion hole 10 Upper base 11 Insertion hole 12 Groove 14 Plate spring 15 Slide blade 15a Cutting edge 20 Chuck 25 Elasticity Member 27 Guide member 29 Coil spring 30 Presser body 31 Presser body 33 Presser support body 35 Nozzle 35b Tip 37 Welding machine 40 Cutting tool 43 Hand machine (collecting device)
46 Basket 48 Bar member (pushing means)
50 Mounting base 51 First frame 52 Second frame 72 Brush unit 75 Welding remaining part 85 Pattern member 90 Rotating brush

Claims (4)

A circular brush manufacturing apparatus for forming a rotating brush by stacking a large number of sheets,
A pedestal provided with an insertion hole for passing a group of strands formed by collecting a number of strands in a bundle;
A chuck that holds the wire group and protrudes and holds a certain amount from the insertion hole of the pedestal;
A nozzle that blows air into the center of the protruding end of the strand group to open the strand group in the radial direction;
A presser body for fixing a group of radially opened wires to a pedestal;
A welding machine for welding the central portion of the strand group in a state where the strand group is fixed to the pedestal;
A cutting tool that cuts the center of the welded portion by the welding machine,
The pedestal is provided with a slide blade that cuts and removes the welding residue remaining at the end of the strand group by cutting with the cutting tool, and discharges the cut welding residue from the pedestal. A device for manufacturing a single brush of a rotating brush, characterized in that a groove is formed. After the excision by the excision tool, pushing means for pushing the welding remaining part left at the end of the strand group downward with respect to the base,
The apparatus for manufacturing a brush unit of a rotating brush according to claim 1, further comprising: a recovery unit that recovers the completed brush unit remaining on the pedestal. The tip of the nozzle is formed in a spherical shape, and the tip of the nozzle is inserted while blowing air from the protruding end of the strand group into the strand group, thereby opening the strand group radially. Item 3. A device for manufacturing a single brush of the rotating brush according to Item 2.   A rotating brush formed by a single brush manufactured by using the manufacturing apparatus according to any one of claims 1 to 3, or a rotating toothbrush equipped with the rotating brush.

Images