JPH0727744U - Barrel polishing machine - Google Patents

Abstract

(57) [Summary] [Objective] The conventional centrifugal barrel is improved in polishing efficiency so that even a product having a complicated shape can be uniformly polished in its entirety. [Structure] A vertical shaft 15 rotated by a motor 31 is attached to a rotary body 4 fixed to a horizontal shaft 7 rotated by a motor 11 attached to a base 2, and a polishing tank 6 is attached to an upper surface of a rotary disk 5 fixed to the vertical shaft 15. When the motor 31 is driven to rotate the turntable 5 and at the same time the motor 11 is driven to reciprocally rotate the rotating body 4, the polishing tank 6 swings while swinging. A fluidized bed in horizontal and vertical directions is generated in the charged material, and the media and the object to be polished come into contact with each other from above, below, left and right, and the entire object to be polished is efficiently friction-polished.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a barrel polishing machine, and more particularly to a centrifugal barrel polishing machine.

[0002]

[Prior art]

 As the barrel polishing device, various devices such as a rotary barrel, a centrifugal barrel, a vibrating barrel, and a fluidized barrel are known. Among them, the centrifugal barrel has a relatively simple device configuration, has good polishing efficiency and can shorten the processing time, and is suitable for polishing small objects, so it is small and complicated such as a dental prosthesis. It can also be used for polishing various products.

Usually, in the case of this centrifugal barrel, a polishing tank is attached to the periphery of a rotary disk, and the polishing disk is swung by rotating the rotary disk so that the polishing medium loaded in the polishing tank is rotated. The material to be polished is pulled by the centrifugal force that accompanies the swirl to the inner wall of the polishing tank, and the surface layer of the charged material that goes toward the center of the swirl path is circulated. It is brought into contact with a medium and friction-polished. There are two types of centrifugal barrels: a horizontal barrel in which the polishing tank swivels around a horizontal axis, and a vertical barrel in which the polishing tank swivels around a vertical axis.

[0004]

[Problems to be solved by the device]

 In the case of the above-mentioned centrifugal barrel, comparing the horizontal barrel and the vertical barrel, in the case of the vertical barrel, the polishing tank swivels in the horizontal plane, and it is relatively easy to attach and detach the polishing tank. However, unevenness in polishing may occur as a result of uneven contact between the media and the upper or lower surface of the object to be contacted due to the difference in specific gravity between the medium and the object to be polished. On the other hand, in the case of a horizontal barrel, since the polishing tank swivels in a vertical plane, uneven polishing due to the difference in specific gravity between the media and the object to be polished is unlikely to occur, but the structure for attaching and detaching the polishing tank is It gets complicated. In addition, in the case of such a conventional centrifugal barrel, whether it is a horizontal barrel or a vertical barrel, the polishing tank only revolves in a fixed circular orbit about the rotation axis. However, only a predetermined peripheral surface of the object to be polished is easily polished, and especially in the case of a product having a complicated shape such as a dental iron supplement, the entire surface may not be uniformly polished.

A first object of the present invention is to further improve such a conventional centrifugal barrel so that a single-layer polishing efficiency is improved, and even a product having a complicated shape can be uniformly polished as a whole. The point is to provide a polishing device. Further, a second object of the present invention is to attach / detach the polishing tank in such a centrifugal barrel, to load the media such as media and objects to be polished into the polishing tank, and to remove the polishing layer of the charge. The point is that the polishing operation can be simplified by making it possible to easily take out.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned first object, the barrel polishing apparatus of the present invention mounts a horizontal shaft which is rotated by a motor on a base body, and a rotary body which is vertically rotated by the rotation of the horizontal shaft is fixed to the horizontal shaft. A vertical shaft that is rotated by a motor is attached to the rotary body, and a rotary disk that horizontally rotates around this is fixed to the vertical axis, and the upper surface of the rotary disk rotates around the vertical axis as the rotary disk rotates. It is equipped with a polishing tank.

Further, in order to achieve the above-mentioned second object, the polishing layer mounting structure of the present invention has a rotary shaft fixed to a vertical shaft, which rotates laterally by the rotation of the vertical shaft. In a vertical barrel polishing apparatus equipped with a polishing tank which is interlocked with the vertical shaft and swivels as the rotary disk rotates, a pedestal for mounting the polishing tank is provided on the upper surface of the rotary disk. Place a polishing tank that opens upward and has an opening / closing lid attached to the opening, and sandwich and fix between the upper and lower lids of the polishing tank and the lower surface of the receiving part with a fixing member with a generally U-shaped cross section. It will be done.

[0008]

[Action]

 The polishing operation by the barrel polishing apparatus according to the present invention as described above will be described below. First, while the turntable is horizontal, the polishing tank containing the object to be polished and the media is attached to the turntable. Next, when the motor of the vertical axis is driven to rotate the rotary disk, the polishing tank turns on the rotary disk along a horizontal circular orbit. At the same time, when the motor of the horizontal axis is driven to reciprocally rotate the rotary body equipped with the rotary disk and the vertical axis about the horizontal axis, the polishing tank that swivels on the rotary disk moves the horizontal axis. It turns while swinging around the center. As a result, horizontal and vertical fluidized beds are generated in the charge in the polishing tank, and this flow causes the media and the object to be polished to contact each other from above, below, left and right, so that the entire object can be efficiently processed by the media. It is friction-polished. After the polishing is completed, the rotation of the horizontal axis and the vertical axis is stopped, the rotary disk is stopped in the horizontal state again, the polishing tank is removed from the rotary disk, and the object to be polished is taken out from the polishing tank.

Further, in the above-mentioned polishing tank mounting structure according to the present invention, an object to be polished or media is loaded into the polishing tank, the opening of the polishing tank is covered with the opening / closing lid, and the polishing tank is rotated. It is placed on the pedestal of the board and fixed between the lower surface of the pedestal and the upper surface of the opening / closing lid of the polishing tank with a fixing member to seal the polishing tank with the opening / closing lid and to polish the polishing tank to the receiving table. Can be fixed at the same time. Further, by removing the fixing member, the polishing tank can be detached from the rotary disk, and at the same time, the opening / closing lid can be opened so that the charge can be taken out from the polishing tank.

[0010]

【Example】

 Hereinafter, a barrel polishing apparatus according to the present invention and a polishing tank mounting structure in the barrel polishing apparatus will be described in more detail with reference to the embodiments shown in the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment of a barrel polishing apparatus 1 according to the present invention. Reference numeral 2 in the figure denotes a base of the polishing apparatus provided on the base 3, and a rotating body 4 which vertically swings above the base 3 is attached to the front surface of the base 2. The rotating body 4 has an opening on the upper surface thereof, and a door 41 is provided in the opening so as to be openable and closable. Inside the rotating body 4, a horizontally rotating rotating disk 5 is attached, and on the upper surface of the rotating disk 5, a pair of polishing wheels are placed symmetrically with respect to the rotation center of the rotating disk 5. Tanks 6, 6 are attached.

As shown in FIGS. 2 and 3, the rotating body 4 is rotatably supported by bearings 9 and 10 in a state of penetrating the base body 2 of the polishing apparatus 1 and projecting to the front thereof. The horizontal shaft 7 is fixed to the tip of the shaft 7, and the horizontal shaft 7 is connected to a motor 11 mounted on the base body 2 through a home gear 12. By rotating the horizontal shaft 7 by the motor 11, the horizontal shaft 7 is reciprocally rotated. The rotating body 4 fixed to the tip of the rotating body 7 is configured to swing.

Horizontal plates 13 and 14 are provided above and below in the rotating body 4 fixed to the tip of the horizontal shaft 7, and a vertical shaft 15 extending upward through the horizontal plates 13 and 14 is provided. It is rotatably fixed by bearings 51 and 52, and a disc-shaped turntable 5 is fixed to the upper end of the vertical shaft 15. In this turntable 5, a pair of support shafts 16 and 17 vertically penetrate through the turntable 5 at symmetrical positions with respect to the vertical axis 15, and are provided by bearings 18 and 19 and bearings 20 and 21, respectively. 5 is provided so as to be rotatable relative to the support shaft 5, and pedestals 22 and 22 for receiving the polishing tank 6 are fixed to the upper ends of both support shafts 16 and 17. The pedestal 22 is formed in a cylindrical shape that opens upward, and the lower portion of the polishing tank 6 is attached in an internally fitted state.

Pulleys 23 and 24 are fixed to the lower ends of the support shafts 16 and 17, respectively. The pulleys 23 and 24 are rotatably fitted onto the vertical shaft 15 and are rotatable. Belts 25 and 26 are connected to pulleys 27 and 28, which are fixed to the horizontal plate 13 so as not to rotate. The pulleys 23 and 24 of the support shafts 16 and 17 and the pulleys 27 and 28 fitted onto the vertical shaft 15 have the same diameter. Further, a pulley 29 is fixed to the lower portion of the vertical shaft 15 so as not to rotate, and a belt 30 wound around the pulley 29 is attached to the rear surface of the rotating body 4 as shown in FIGS. Also, it penetrates through the front surface of the base body 2 and is wound around a pulley 33 fixed to a rotary shaft 32 of a motor 31 attached to the horizontal shaft 7, and the vertical shaft 15 is rotated by the rotation of the motor 31. . Further, as shown in FIG. 4, an arc-shaped opening 34 is formed on the front surface of the base body 2 through which the belt 30 penetrates, and is attached to the motor 31 attached to the horizontal shaft 7 and the rotating body 4. The motor 11 can rotate the horizontal shaft 7 to oscillate the rotating body 4 while the belt 30 is still connected to the vertical shaft 15.

Further, as shown in FIG. 5, the polishing tank 6 attached to the rotary disk 5 has an upward opening fixed to an upper end of a support shaft 16 rotatably erected on the rotary disk 5. The lower part is fitted into the cylindrical pedestal 22 and the opening / closing lid 8 for opening / closing the polishing tub 6 is detachably attached to the upper surface of the polishing tub 6. Then, a charging material M such as media and an object to be polished is loaded into the polishing tank 6, and the polishing tank 6 whose upper opening is closed by the opening / closing lid 8 is fitted from above the pedestal 22. The lower surface of the pedestal 22 and the upper surface of the opening / closing lid 8 that covers the upper surface of the polishing tank 6 are fixed by a fixing member 35. The fixing member 35 is made of a flexible material such as a metal plate, and has horizontal plates 37 and 38 extending from the upper and lower ends of the vertical plate 36, and the front end of the upper horizontal plate 37. The tightening shaft 39 is rotatably attached in a state of being eccentric with respect to the horizontal rotating shaft, and a handle 40 is screwed into the tightening shaft 39 so that the tip of the tightening shaft 39 contacts the rotating shaft. Further, the tip of the lower horizontal plate 38 is formed in a bifurcated shape so as to be fitted onto the support shaft 16 on the lower surface of the pedestal 22.

The polishing operation by the barrel polishing apparatus according to the present invention configured as described above will be described below. First, open the door 41 of the rotating body 4 in the horizontal state, rotate the tightening shaft 39 with the handle 40 to release the tightening, remove the fixing member 35 from the receiving table 22, and take out the polishing tank 6 from the receiving table 22. The opening / closing lid 8 is opened, and the object to be polished and the charging material M such as media are loaded into the polishing tank 6. Then, the opening / closing lid 8 of the polishing tank 6 charged with the charging material M is closed, and the opening / closing lid 8 is fitted again on the pedestal 22, and the fixing member 35 is attached to the lower surface of the pedestal 22 and the opening / closing lid 8 on the upper portion of the polishing tank 6. Attach so that it is sandwiched between the upper surface. Further, the handle 40 is tilted down to rotate and tighten the eccentric tightening shaft 37, and the handle 40 is rotated to fix the tightening shaft 37 to fix the polishing tank 6 to the pedestal 22 on the turntable 5. Then, the door 41 of the rotating body 4 is closed. As described above, according to the present invention, the polishing tank 6 is fitted to the pedestal 22 attached to the upper end of the support shaft 16 erected on the turntable 5, and the lower surface of the pedestal 22 and the opening / closing lid 8 of the polishing tank 6 are fitted. By mounting so as to be sandwiched between the upper surface and the fixing member 35 having a substantially U-shaped cross section, the opening / closing lid 8 is fixed to the polishing tank 6 and the polishing tank 6 is fixed to the rotary disk 5. This can be done simultaneously by the fixing member 35.

Next, with the polishing tank 6 attached to the rotary disk 5 in the rotary body 4 as described above, the motor 31 attached to the horizontal shaft 7 is driven by appropriate control means to rotate the vertical shaft 15. Then, the rotary disk 5 fixed to the vertical shaft 15 rotates, and the polishing tank 6 attached to the rotary disk 5 rotates about the vertical shaft 15. At this time, the polishing tank 6 has a pulley 23 at the lower end of the support shaft 16 to which the polishing tank 6 is attached and a pulley 27 rotatably fitted on the vertical shaft 15 while being fixed to the rotating body 4 so as not to rotate. Since it is connected by 25, the predetermined point P of the polishing tank 6 that revolves around the vertical axis 15 is always at a fixed position as shown in FIG. 6, and the polishing tank 6 does not rotate and the vertical axis 15 does not rotate. Orbit around. At the same time, the motor 11 attached to the base body 2 is driven by appropriate control means to reciprocally rotate the horizontal shaft 7, whereby the rotating body 4 swings left and right about the horizontal shaft 7 as shown in FIG. Then, the polishing tank 6 which is swung by the rotation of the turntable 5 is swung about the horizontal axis 7 while being swung. As a result, a fluidized bed in the horizontal and vertical directions is generated in the inner product M installed in the polishing tank 6, and this causes the media to move from the front, rear, left, right, and up and down of the object to be polished. Since they come into contact with each other and are friction-polished, the entire object to be polished is uniformly polished. After the polishing is completed, the rotary body 4 is returned to the original horizontal state, the rotation of the rotary disk 5 in the rotary body 4 is stopped, the door 41 is opened, and the internal polishing tank 6 is opened. Is removed from the receiving table 22, and the object to be polished in the polishing tank 6 is taken out.

As described above, in the barrel polishing apparatus according to the present invention, the polishing tank 6 loaded with the object to be polished is rotated about the vertical axis 15 by the rotation of the rotary disk 5, and at the same time, the rotary disk 5 is rotated. By swinging the attached rotating body 4 by the horizontal shaft 7, vertical and horizontal fluidized beds are generated in the charging material M in the polishing tank 6, and thereby the media charged in the polishing tank 6 together with the object to be polished. Can be brought into contact with the object to be polished from any direction, and the entire object to be polished can be uniformly polished.

Next, FIG. 8 shows another embodiment of the barrel polishing apparatus according to the present invention. In the apparatus of this embodiment, the horizontal shaft 7 attached to the base 2 and the motor 11 are connected by a belt 50, and the rotating body 4 is fixed to the horizontal shaft 7. A vertical shaft 15 is attached to the rotary body 4 at a position away from the axis of the horizontal shaft 7, and the vertical shaft 15 is connected to a motor 31 fixed to the rotary body 4 via a belt 30. In addition, the rotary disk 5 fixed to the upper end of the vertical shaft 15 is provided with polishing tanks 6, 6 that rotate about the vertical shaft 15.

The polishing operation by the apparatus of this embodiment is the same as the above-mentioned case, and the vertical shaft 15 attached to the rotating body 4 is rotated by the motor 31 so that the polishing tanks 6 and 6 on the turntable 5 are rotated. The rotary body 4 fixed to the horizontal shaft 7 is swung by rotating the horizontal shaft 7 attached to the base body 2 back and forth while rotating the vertical shaft 15 around the vertical shaft 15. At this time, in the apparatus of the present embodiment, the vertical shaft 15 is provided at a position apart from the shaft center of the horizontal shaft 7, so that the shaft centers of the horizontal shaft 7 and the vertical shaft 15 may intersect. In comparison with the previous embodiment in which the polishing tank 6 swings to the left and right of the vertical axis 15, the swinging operation of the polishing tank 6 is increased, and the polishing efficiency can be further enhanced.

The barrel polishing apparatus 1 according to the present invention is not limited to the above embodiment. For example, in the above embodiment, the pair of polishing tanks 6 and 6 are provided on the upper surface of the rotating disk 5. Although an example is shown, the number of polishing tanks 6 is not particularly limited. Further, in this example, the pulleys 23 and 24 of the support shafts 16 and 17 of the pedestal 22 to which the polishing tank 6 is attached and the pulleys 27 and 28 rotatably fitted on the vertical shaft 15 have the same diameter, so that the turntable 5 has the same diameter. Although the polishing tank 6 is provided so as to rotate around the vertical shaft 15 without rotating when rotating, the pulleys 23 and 24 on the supporting shafts 16 and 17 have a small diameter so that the polishing tank 6 can be installed on the rotating disk 5. You may make it rotate on the opposite direction to the rotating direction. Further, instead of the pulleys 23 and 24, gears may be used to connect with the support shafts 16 and 17.

[0022]

[Effect of device]

 As described above, according to the barrel polishing apparatus of the present invention, the rotary disk with the polishing tank is rotated about the vertical axis, and at the same time, the rotary disk with the rotary disk and the vertical axis is rotated about the horizontal axis. Since the polishing tank that swivels on the turntable swings around the horizontal axis, the fluidized beds in the horizontal and vertical directions are generated in the charges in the polishing tank. The flow of this charge causes the media to come into contact with the object to be polished from above, below, left and right, and the entire object to be polished is efficiently friction-polished by the medium. Even if there is a difference in specific gravity between the medium and the object to be polished, it is possible to uniformly and surely polish the entire object to be polished. In addition, in the polishing tank mounting structure according to the present invention, an object to be polished or media is loaded into the polishing tank, the opening of the polishing tank is covered by the opening / closing lid, and the polishing tank is mounted on the pedestal of the turntable. It is placed on top and fixed between the lower surface of the pedestal and the upper surface of the opening / closing lid of the polishing tank with a fixing member, so that the polishing tank is sealed by the opening / closing lid and the polishing tank is fixed to the receiving table at the same time. Since the polishing tank can be removed from the rotating disk by removing the fixing member, at the same time, the opening / closing lid can be opened so that the charge can be taken out from the polishing tank. It is extremely easy to load and unload media and objects to be polished into the polishing tank, and to attach and detach the polishing tank to and from the polishing machine.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a barrel polishing apparatus according to the present invention.

FIG. 2 is a vertical sectional side view of the barrel polishing apparatus.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a sectional view taken along line BB in FIG.

FIG. 5 is an exploded perspective view showing a mounting structure of a polishing tank.

FIG. 6 is an explanatory plan view showing a turning state of a polishing tank in the barrel polishing apparatus according to the present invention.

FIG. 7 is an explanatory front view showing the swinging state of the polishing tank in the barrel polishing apparatus according to the present invention.

FIG. 8 is a simplified side view showing another embodiment of the barrel polishing apparatus according to the present invention.

[Explanation of symbols]

 1 barrel polishing device 2 base 3 base 4 rotating body 5 rotating plate 6 polishing tank 7 horizontal axis 8 open / close lid 11 motor 15 vertical axis 16 spindle 17 spindle 22 pedestal 34 arcuate opening 35 fixing member

Claims (2)

[Scope of utility model registration request] 1. A horizontal shaft which is rotated by a motor is attached to a base body, and a rotary body which is vertically rotated by the rotation thereof is fixed to the horizontal shaft, and a vertical shaft which is rotated by a motor is attached to the rotary body, and the vertical shaft is attached to the vertical shaft. A barrel polishing apparatus characterized in that a rotary disk which horizontally rotates around this is fixed, and a polishing tank which rotates around a vertical axis as the rotary disk rotates is attached to the upper surface of the rotary disk. 2. A vertical barrel polishing apparatus comprising a vertical shaft having a rotary disk fixed thereto which is rotated vertically by the rotation of the rotary disk, and a polishing tank mounted on the upper surface of the rotary disk and swiveling about the vertical axis as the rotary disk rotates. In the above, a pedestal for mounting a polishing tank is provided on the upper surface of the turntable, and a polishing tank having an opening upward and an opening / closing lid attached to the opening is mounted on the pedestal to open / close the polishing tank. A structure for mounting a polishing tank in a barrel polishing apparatus, wherein an upper surface of the lid and a lower surface of the receiving portion are sandwiched and fixed by a fixing member having a substantially U-shaped cross section.