JP2552066C - - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a rotary brush device capable of adjusting an amount of protrusion of a brush bristle tip. 2. Description of the Related Art For example, a rotating brush device such as a polishing and cleaning brush is disclosed in Japanese Utility Model Publication No. 3-54848.
The brush casing is arranged around the rotatable brush flocking plate as shown in the figure, and a long hole parallel to the axial direction is formed in the peripheral wall of the brush casing, and the long hole protrudes from the side surface of the brush flocking plate. Slide the slider or bolt loosely, and slide the slider or bolt according to the long hole to move the brush flocking plate up and down in the axial direction of the brush casing,
There is known a brush in which the brush tips are erected and mounted on the brush flocking plate so as to protrude from through holes formed in the bottom wall of the brush casing. [0003] The above-mentioned conventional rotary brush device has a configuration in which a rotational driving force is transmitted from a brush flocking plate to a brush casing via a slider or a bolt loosely inserted into an elongated hole. Because of this, the brush casing rattles against the brush flocking plate during polishing, so that high-speed polishing cannot be performed smoothly. Alternatively, the bolt may play in the long hole, for example, the brush flocking plate may be inclined, and it is difficult to maintain the uprightness of the brush rod and to adjust the bristle length properly. According to the present invention, a large number of brush rods each having a bundle of brush wires are erected and planted on a first rotary plate rotatably provided to be rotatable, and the brush rod is inserted through the brush rod. A second rotating plate having an alignment hole is provided, and a plurality of columns for transmitting the rotational driving force of the first rotating plate to the second rotating plate are arranged at positions off the center of the first and second rotating plates. In addition, the first rotating plate is slidably provided so as to approach and separate from the second rotating plate by using the support as a guide, so as to adjust the bristle length of the brush rod protruding from the second rotating plate. Provided is a rotary plate brush device in which a first rotary plate is suspended from a rotary drive shaft, and the second rotary plate is rotatably installed at a fixed position with respect to a surface to be polished in a fixed base frame fixed to a frame. . In the present invention, the first rotating plate is suspended from a rotary drive shaft, and a fixed base frame and a movable inner ring rotatably mounted on the fixed base frame are installed around the second rotating plate. Provided is a rotary brush device having a configuration in which the first rotary plate is detachably attached to a movable inner ring, and the fixed base frame is fixed to a frame. Further, the present invention provides a structure in which a screw shaft for moving the first rotary plate toward and away from the first rotary plate is provided, a handle is provided on the screw shaft, and the first rotary plate approaches and separates from the second rotary plate by operating the handle. The present invention provides a rotating brush device. Further, the present invention provides a screw shaft for moving the first rotating plate toward and away from the first rotating plate, a one-way clutch on the screw shaft, and intermittently rotating the screw shaft in one direction by a rack gear which operates the one-way clutch by a cylinder. Provided is a rotary brush device having a configuration in which a first rotary plate approaches and separates from a second rotary plate. [0008] Since the rotation driving force of the first rotary plate on which the brush rod is implanted is transmitted to the second rotary plate via the support, the first and second rotary plates and the brush rod are integrated via the support. The first rotating plate slides with the support as a guide while the second rotating plate is rotated in a fixed position in the fixed base frame while being rotated at the same time, and the second rotating plate is smoothly rotated. Because the brush length of the brush rod that approaches and separates from the two rotating plates and projects from the second rotating plate can be adjusted,
The hair length can be properly adjusted while smoothly moving the first rotating plate up and down during the polishing operation. In addition, a plurality of the struts are arranged at positions deviated from the rotation centers of the first and second rotating plates, and the rotation is transmitted and the sliding is performed. Sliding of one rotating plate (hair length adjustment) can be performed smoothly, and rotation driving force of the first rotating plate is reduced to the second.
The brush is efficiently transmitted to the rotating plate, and can be stably rotated with a small driving force, so that the polishing action can be exhibited soundly without applying a load to the brush rod. Furthermore, since the periphery of the brush rod can be made open, the brush rod can be effectively subjected to air cooling during rotation and polishing, and the useful life of the brush rod can be greatly improved. FIG. 1 to FIG. 3 show a rotary brush device as an embodiment of the present invention, in which a large number of brush rods 1 obtained by consolidating an infinite number of brush wires are rotatably driven and mounted. A first rotating plate 2 and an alignment hole 3 for penetrating each brush rod 1 facing the first rotating plate 2.
And a plurality of columns 5 erected on the second rotating plate 4 concentrically and in parallel with the brush rod 1, that is, from the center of the first and second rotating plates 2, 4. A plurality of pillars 5 are provided in parallel with the brush rod 1 at offset positions, and each of the plurality of pillars 5 has a plurality of guide holes 6 in which the first rotary plate 2 is formed in the first rotary plate 2. The first rotary plate 2 is slidably inserted to transmit the rotational driving force of the first rotary plate 2 to the second rotary plate 4 via the column 5, and the first rotary plate 2 slides using the column 5 as a guide to rotate the second rotary plate 2. The board 4 can be approached and separated. That is, the brush rod 1 is erected and fixed on the outer peripheral portion of the first rotary plate 2 on a concentric circle with the first rotary plate 2, the bristle tip is slidably inserted into the second rotary plate 4, Numeral 5 is fixed to the inner cavity of the second rotary plate 4 on the first rotary plate 2 side, and the tip is slidably inserted into the first rotary plate 2 so that the support 5 and the brush rod 1 are in opposite directions. It is arranged to function by being extended. Next, a means for moving the first rotating plate 2 toward and away from the second rotating plate 4 with the support 5 as a guide will be described. The first rotating plate 2 includes a circular brush flocking plate 7 in which the plurality of brush rods 1 are planted concentrically, and a circular substrate 9 which is superimposed on the brush flocking plate 7 and fastened with bolts 8. A mounting portion 10 protruding above the center of the substrate 9 is coaxially suspended from an output shaft (rotation drive shaft) 11a of a motor 11 via a coupling tool 12 such as a chuck. A brush unit in which the first rotating plate 2, the brush rod 1, the support column 5, and the second rotating plate 4 are integrally assembled is suspended. A movable table 13 on which the motor 11 is mounted is vertically movably attached to a vertically standing frame 14 via a slider 15 protruding from the movable table 13 and a guide member 16 provided on the frame 14. A female screw member 17 protruding from the movable table 13 is male-femalely fitted to a vertically mounted male screw shaft 18, and the upper and lower ends of the male screw shaft 18 are rotatably supported by a support member 19 provided on the frame 14. I do. A handle 20 is fixed to the upper end of the male screw shaft 18, and by rotating the handle 20, the male and female fitting of the female screw member 17 to the rotating male screw shaft 18 and the sliding of the slider 15 to the guide member 16 are performed. The first rotating plate 2 approaches and separates from the second rotating plate 4 through the second rotating plate 4.
Adjust the bristle length of the brush rod 1 protruding from the lower surface. The guide hole 6 of the first rotary plate 2 penetrates the brush flocked plate 7 and the substrate 9 in the bore portion of the brush rod implantation area, and the guide hole 6 on the substrate 9 side is provided with Teflon (trademark) or the like. Has a bush 21 made of a low melting material. On the other hand, the swivel unit that rotatably supports the brush unit has a substantially square fixed base frame 22 attached to the frame 14 with screws 25, and a circular window formed in the fixed base frame 22 has a cross roller bearing 23. The rotatable inner ring 24 is rotatably mounted via the above, so that the second rotating plate 4 is set at a fixed position with respect to the polishing surface. An annular seal 27 is interposed between the fixed base frame 22 and the movable inner ring 24 below the cross roller bearing 23, and the fixed base frame 22 and the movable inner ring 2 are provided on the upper surface of the fixed base frame 22.
An annular cover 28 covering the upper part between the four is fastened together with the bearing holder 30 with screws 29, and the seal 27 and the cover 28 prevent the coolant or the abrasive powder from entering the cross roller bearing 23 during polishing. A bearing holder 32 different from the above is attached to the upper outer peripheral side of the movable inner ring 24, and the peripheral portion 4 a of the second rotary plate 4 is screwed to the flange portion 24 a protruding inward from the lower portion of the movable inner ring 24.
Attach with A plurality of columns 5 attached to the second rotary plate 4 with screws 34 are slidably inserted through bushes 21 of the first rotary plate 2, and a first rotary plate is provided at an upper end of the column 5. 2 has a head 35 for retaining. The head 35 is formed by fitting a ring to the upper end of the column 5 and connecting the ring with a screw 36. Therefore, according to this embodiment, when the motor 11 shown in FIG. 1 is rotationally driven, the driving force is transmitted to the first rotary plate 2 via the connecting member 12 and the mounting portion 10 and the first rotary plate 2 Is transmitted to the second rotary plate 4 and the movable inner ring 24 by the support column 5, whereby the first rotary plate 2, the brush rod 1, the second rotary plate 4, and the movable inner ring 24 are integrally rotated in the same direction. In addition, a workpiece (not shown) can be smoothly polished at a high speed without twisting the tip of the brush rod 1 protruding from the second rotating plate 4 and the lower end of the fixed base frame 22. The outside air can freely flow between the brush rods 1, and the heat generated by the brush rods 1 rubbing the workpiece at high speed can be effectively radiated, and the service life of the brush rods 1 can be improved. The abrasive powder and the washing liquid can be discharged outward through the space between the brush rods 1 by centrifugal force. When the handle 20 shown in FIG. 1 is rotated in one direction and the male screw shaft 18 is rotated in one direction, the motor 11 supported on the movable base 13 through the female screw member 17 fitted into the male screw shaft slides. The first rotating plate 2 descends while being guided by the moving element 15 and the guide member 16, and at the same time, descends with the support 5 as a guide, approaches the second rotating plate 4 installed at a fixed position, and causes the second rotation of the brush rod 1. The hair length protruding from the lower surface of the plate 4 can be adjusted. The amount of adjustment of the bristle length can be easily recognized by visually checking the gap between the head 35 of the column 5 and the first rotating plate 2, so that the brush replacement time can be accurately grasped. , Maintenance and management becomes easy. When the brush rod 1 is worn out due to the progress of the polishing operation and it is time to replace the brush rod 1, the screw 25 is loosened to release the connection between the second rotating plate 4 and the movable inner ring 24, and then the rotation of the handle 20 is performed. By operating the motor 11, the first rotating plate 2, the brush rod 1, the second rotating plate 4, and the brush unit of the support column 5 are integrally raised, and the mounting portion 10 of the first rotating plate 2 is removed from the connecting tool 12, and Brush unit with motor drive shaft 11
a, and the brush unit is lowered by rotating the handle 20,
The peripheral edge of the second rotating plate 4 of the brush unit is fastened to the flange portion 24 a of the movable inner ring 24 with a screw 25. In the second embodiment shown in FIG. 4, a brush rod 1 is implanted in a cavity of the first rotating plate 2 with the second rotating plate 4 on a concentric circle with the first rotating plate 2. It was configured to provide a plurality of columns 5 outside the planting area. In other words, a plurality of the posts 5 are arranged at equal distances from the rotation centers of the first and second rotating plates 2 and 4. In the third embodiment shown in FIG. 5, the second rotating plate 4 is separated from the rotation center of the second rotating plate 4.
The strut 5 is attached to several places where the brush rod 1 should be located on the concentric circle. In the fourth embodiment shown in FIG. 6, a one-way clutch 45 is mounted in place of the handle operation on the upper end of the male screw shaft 18, and the one-way clutch 45 is operated by a cylinder 47 mounted on the frame 14 via a frame 46. The external gear shaft 18 is intermittently rotated in one direction by the rack gear 48 to be rotated. That is, for example, at regular intervals during the grinding operation or at regular intervals of the grinding operation, the cylinder 47 is extended, the rack gear 48 is advanced, the one-way clutch 45 is rotated in one direction, and the male screw shaft 18 is rotated accordingly. Is moved in a direction approaching the second rotating plate 4. As a result, the tip size of the brush rod 1 is adjusted. Further, even when the rack gear 48 retreats due to the contraction operation of the cylinder 47, the one-way clutch 45 idles in the other direction, and the brush rod 1 maintains the protruding state. Even if excessive resistance is applied to the bristle tip of the brush rod 1 that comes into contact with the work surface during the movement of the first rotary plate 2 approaching the second rotary plate 4, the excessive resistance is applied to the compression of the pressure medium supplied to the cylinder 47. And the rack gear 48 does not advance any further. Although the present invention is not shown in the drawings other than the above embodiments, it is also possible to automatically detect the change in the resistance of the bristle tip of the brush rod 1 in contact with the workpiece as the change in the torque of the motor and automatically adjust the hair length. It is. Although not shown, the connection between the second rotating plate 4 and the movable inner ring 24 is made by a screw 25. A pin is attached to one of the peripheral portion of the second rotating plate 4 and the flange portion 24 a of the movable inner ring 24. And a hole is formed in the other, and the pin is inserted into the hole, and the rotational force of the brush unit, that is, the rotational force of the second rotary plate 4 is transmitted to the movable inner ring 24 via the pin, and fixed. A configuration in which the base frame 22 rotates together may be used. According to the present invention, the rotation driving force of the first rotating plate on which the brush rod is implanted is transmitted to the second rotating plate penetrating the brush rod through a plurality of columns. , The first and second rotating plates and the brush rod rotate firmly and inseparably, so that high-speed polishing can be performed smoothly, and the second rotating plate is fixed in a fixed base frame during the polishing operation. The first rotating plate smoothly approaches and separates from the second rotating plate by using the plurality of columns as guides, so that the hair length can be properly adjusted. Also, since a plurality of the above-mentioned columns are arranged at positions deviated from the rotation centers of the first and second rotating plates to transmit the rotation and perform the above-mentioned sliding, the first column which guides the columns is used. The rotating plate can be smoothly slid (hair length adjustment), and the rotational driving force of the first rotating plate can be efficiently transmitted to the second rotating plate, and can be stably rotated with a small driving force. Abrasive action can be exhibited soundly without applying load to the rod. That is, in a brush type in which a plurality of brush rods set on the first rotating plate are inserted through the second rotating plate and the second rotating plate is rotated by the rotation driving force of the first rotating plate, the brush rod is Excessive rotational load is applied to the rod, causing the rod to bend, break, and the like, so that the polishing operation cannot be performed soundly.However, the present invention requires a plurality of columns disposed at positions off the rotation center of the rotary plate. As a result, the brush rod protruding from the second rotating plate is kept in an upright state without any load against rotation, and can effectively exert a polishing action. In addition, a casing surrounding the brush rod group is provided. The function of the rotary brush device of the above type can be effectively demonstrated, such as the brittleness of the brush rod due to heat storage, such as the case where the rotation is transmitted through, and the appropriate adjustment of the brush rod length. Sushi Confuse. Further, the present invention can have a structure in which the periphery of the brush rod is opened by a rotation structure inseparable from the first and second rotating plates and the brush rod via the above-mentioned support, and as described above, The open structure allows the brush rod to effectively receive air cooling during polishing, effectively suppresses a temperature rise due to heat accumulation of the brush rod during polishing, and improves the useful life of the brush rod.

[Brief description of the drawings]     FIG.   FIG. 2 is a side view of the rotary brush device according to the first embodiment of the present invention, including a partially cut-away portion.     FIG. 2   FIG. 4 is a side view including a partially cut-away portion showing a rotating brush portion in the device.     FIG. 3   FIG. 4 is a perspective view including a partially cut-away portion showing a rotating brush portion in the device.     FIG. 4   FIG. 9 is a plan view showing a second rotating plate including a support according to a second embodiment of the present invention.     FIG. 5   FIG. 13 is a plan view showing a second rotating plate including a support according to a third embodiment of the present invention.     FIG. 6   FIG. 14 is a side view showing a rotary drive mechanism of a male screw shaft according to a fourth embodiment of the present invention.     [Explanation of symbols]   1 brush rod   2 First rotating plate   3 alignment holes   4 Second rotating plate   5 props   6 Guide hole   10 Mounting part   11 Motor

Claims (1)

Claims: 1. A plurality of brush rods each having a bundle of brush wires converged on a first rotary plate rotatably driven and provided with an alignment hole through which the brush rods are inserted. A second rotating plate is provided, and the rotational driving force of the first rotating plate is transmitted to the second rotating plate via a plurality of columns arranged at positions off the rotation centers of the first rotating plate and the second rotating plate. And the first rotating plate is slidably provided so as to approach and separate from the second rotating plate with the support as a guide, and adjusts the bristle length of the brush rod protruding from the second rotating plate, The first rotating plate is suspended from a rotary drive shaft, and the second rotating plate is rotatably mounted at a fixed position with respect to a surface to be polished in a fixed base frame fixed to a frame. Rotating brush device. 2. A plurality of brush rods each having a bundle of brush strands erected and mounted on a first rotary plate rotatably driven, and a second rotary plate having an alignment hole through which the brush rod is inserted is provided. A configuration in which the rotational driving force of the first rotary plate is transmitted to the second rotary plate via a plurality of columns arranged at positions deviated from the rotation centers of the first rotary plate and the second rotary plate; The first rotary plate is slidably provided so as to approach and separate from the second rotary plate by using the support as a guide to adjust the bristle length of the brush rod protruding from the second rotary plate. Is mounted on a rotary drive shaft, a fixed base frame and a movable inner ring rotatably mounted on the fixed base frame are installed around the second rotating plate, and the second rotating plate is detachably attached to the movable inner ring. A rotating brush device comprising: a fixing base frame attached to a frame. 3. A structure in which a screw shaft is provided for moving the first rotating plate toward and away from the first rotating plate, a handle is provided on the screw shaft, and the first rotating plate is moved toward and away from the second rotating plate by operating the handle. The rotary brush device according to claim 1 or 2, wherein: 4. A screw shaft for moving the first rotary plate toward and away from the first rotary plate, a one-way clutch is provided on the screw shaft, and the one-way clutch is intermittently rotated in one direction by a rack gear that operates a cylinder to form a first shaft. The rotary brush device according to claim 1, wherein the rotary plate is configured to approach or separate from the second rotary plate.