JPH1029151A - Polishing transferring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To polish comparatively breakable works without forcing excessive stress and conduct polishing continuously. SOLUTION: A shaker 11 is vibrated at a low frequency (60-70 cycles) and a transferring polishing portion 13 is vibrated in the up and down directions and a motor 14 rotates a rotational drum 12 through a timing belt 21, thereby, works to be polished are advanced to a deliverly chute 28 by a rotating screw 18, so, the work to be polished is always brought into contact with the new inner surface of the wall and undergoes the highly abrassive force although the vibration frequency is low, and breaking and cracking of works are prevented and removing of burrs and whole surface polishing are conducted in stable condition even if the work to be polished is brittle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing and conveying apparatus for performing deburring of a work to be polished, which is liable to cause cracks or chips on ceramic chips or the like.

[0002]

2. Description of the Related Art As a conventional polishing and conveying apparatus for deburring, there is an apparatus for rotating a rotary drum 1 having a polyhedral outer shape by a motor 2 through a transmission mechanism 3 as shown in FIG. In this apparatus, as shown in FIG. 6, the work 4 to be polished placed in the rotary drum 1 is moved upward by the rotation of the rotary drum 1 (arrow A), and the work 4 to be polished is moved by its own weight in the direction of gravity (arrow B). The work 4 to be polished is caused to collide with the inner surface of the rotary drum 1 by this fall or to collide with each other, so that the work 4 to be polished is deburred.

As another polishing and conveying device for deburring, as shown in FIG. 7, a protruding portion 5a is provided at the center, and a bowl 5 having a U-shaped annular concave portion 5b formed around the protruding portion 5a is provided at the lower portion. The work 4 to be polished in the annular concave portion 5b is moved by the vibration in the vertical direction (vibration frequency 100 to 180 Hz) by the vibrator 6 arranged as shown in FIG. When pushing up a workpiece 4 to be polished, the workpieces 4 are rubbed or hit against each other to perform deburring.

[0004]

Since the work 4 to be polished is very brittle, a large impact force is applied to the work 4 to be polished by the above-described method of deburring by vibration or rotation of the conventional apparatus. As shown in FIG. 9A, the work 4 to be polished, which has burrs 7 but has no scratches, chips, etc., is polished as shown in FIG.
As shown in (b), although the burr 7 can be removed, there is a problem that a flaw 8 and a chip 9 (break) occur. Therefore, the entire surface of the work 4 to be polished could not be polished successfully.

[0005] Further, the above-mentioned conventional apparatus has a problem that continuous operation cannot be performed due to batch processing, and work efficiency is poor. The present invention has been made in view of the above problems, and an object of the present invention is to polish a relatively fragile work to be polished without applying an excessive stress, and to perform a polishing process capable of continuous processing. In providing the device.

A second object of the present invention is to provide, in addition to the first object of the present invention, a polishing and conveying apparatus capable of performing stable polishing without scratches, cracks, chips or the like. A third object of the present invention is to provide, in addition to the first object of the present invention, a polishing and conveying apparatus capable of improving a rolling effect of a work to be polished and enhancing a deburring effect. .

A fourth object of the present invention is to improve the rolling effect of the work to be polished and the deburring effect, and furthermore to improve the rotating drum. An object of the present invention is to provide a polishing and conveying device which is easy to manufacture. A fifth object of the present invention is to provide a polishing and conveying apparatus in which the deburring effect is further improved in addition to the object of the first invention.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, a rotating drum having a regular polygonal cross section is formed on the inner surface of the peripheral wall of the rotating drum from one end to the other end of the rotating drum. And a vibrating means for applying a low-frequency vibration to the rotary drum. The supply section is provided with a discharge section for the workpiece to be polished on the front side in the traveling direction, the stress caused by the vibration applied to the workpiece to be polished by the low frequency vibration is small, and the polishing workpiece is polished by the polishing screw. When the work to be polished moves upward during rolling, the work to be polished falls down quickly from a low position due to vibration. Re) or without having to, it becomes possible to entirely polished by its relatively fragile polished workpiece. Further, the work to be polished can be conveyed while being polished by the polishing screw, so that continuous processing can be performed.

According to a second aspect of the present invention, in the first aspect of the present invention, the frequency of the low-frequency vibration is about 60 to 70 Hz. And the effect of vibration is also obtained, and stable polishing is possible.
According to a third aspect of the present invention, in the first aspect of the invention, a large number of irregularities are formed on the inner surface of the peripheral wall of the rotary drum, and the workpiece to be polished is rotated in the rotary drum as the rotary drum rotates. The work to be polished can be moved upward, so that a new work to be polished can always contact the inner surface of the peripheral wall of the rotating drum. As a result, the rolling effect of the work to be polished is improved, and the deburring effect is improved. Can be enhanced.

According to a fourth aspect of the present invention, in the first aspect of the present invention, since the peripheral wall of the rotary drum has a mesh structure, the work to be polished is caught on the unevenness in the rotary drum as the rotary drum rotates. The workpiece can be moved upward, and a new workpiece can be constantly brought into contact with the inner surface of the peripheral wall of the rotating drum. As a result, the rolling effect of the workpiece can be improved and the deburring effect can be enhanced. In addition, when a rotary drum is manufactured, a net or a punching plate can be used, so that the rotary drum can be easily manufactured.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the peripheral wall of the rotary drum has a mesh structure and a large number of irregularities are formed on the inner surface of the peripheral wall. The workpiece can be moved upward while being hooked on the mesh, and the new workpiece can always be brought into contact with the inner surface of the peripheral wall of the rotating drum. As a result, the rolling effect of the workpiece can be improved, and especially the mesh and unevenness can be improved. With this, the rolling effect of the work to be polished is synergistically improved,
The deburring effect can be further enhanced, and when a rotating drum is manufactured, a net or a punching plate can be used, so that it can be easily manufactured.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a front view and a side view of an embodiment. A base 10 has a vibrator 11, a vibrator controller 30 for controlling the vibrator 11, and a rotating drum 13 which will be described later. A motor controller 15 for controlling the rotation of a motor 14 to be driven, a power breaker 16 and the like are arranged.
Further, a transport polishing unit 13 provided with a motor 14 for rotating the rotary drum 12 and a transmission mechanism is provided.

As shown in FIG. 2, a pair of supports 17 rotatably supporting guide rollers 16 at upper ends thereof are disposed at predetermined intervals on both ends of the upper surface of the mounting table 15 at a predetermined distance. In addition, both ends of the rotary drum 12 are rotatably supported by the guide rolls 16 of the support 17. The rotating drum 12 is formed of a cylindrical body having a regular polygonal cross section. The inner surface of a peripheral wall formed of, for example, a vinyl chloride plate, which forms the cylindrical body, is formed of a spiral protruding wall formed from one end to the other end. A polishing screw 18 is provided, and flanges 19, 19 concentric with the center axis of the rotating drum 12 and having a circular outer shape are provided at both ends.

A timing pulley 20 is provided on the outer surface of the flange 19 at one end of the rotary drum 12. The rotating drum 12 has the flanges 19 at both ends attached to the mounting base 1.
5 are mounted so as to pass between the guide rolls 16 of the supports 17 provided on both sides provided at both ends of the support 5 and are rotatably supported by the supports 17 via the guide rolls 16.

A motor 14 whose rotation speed is controlled by a motor controller 15 is disposed inside the mounting base 15, and a pulley 22 for transmitting rotation to the timing pulley 20 by a timing belt 21 is provided on an output shaft thereof. . A lower end of a supply chute 24 for continuously supplying a workpiece (not shown) to be polished into the rotary drum 12 is provided at an opening of the rotary drum 12 which is located on the rear side in the traveling direction of the transport polishing screw 18. Part of the department,
The upper end of a discharge chute 23 for discharging the work 4 to be polished which has been advanced in the rotary drum 12 faces the opening of the rotary drum 12 which is located on the forward side of the transporting screw 18 in the traveling direction. .

The supply chute 24 has a gutter shape obliquely arranged from above, and the lower end facing the opening of the rotary drum 12 is supported by a support 25 arranged on the side surface of the mounting base 15. The upper end facing the opening of the rotary drum 12 is disposed so as to be inclined downward,
Is supported by a support member 26 disposed on the side surface of the. In FIG. 2, reference numeral 27 denotes a connecting rod for connecting between the flange portions 19.

The vibrator 11 is vibrated at a low frequency (60 Hz to 70 Hz) to vibrate the entire polishing and polishing section 13 in the vertical direction, and the motor 14 is rotated to rotate the rotating drum 1.
When the workpiece to be polished is supplied into the rotary drum 12 by the supply chute 24 while rotating and vibrating the workpiece 2, the workpiece to be polished supplied into the rotary drum 12 advances in the direction of the discharge chute 23 by the rotation of the conveying and polishing screw 18. I do. At this time, the work to be polished is the conveying and polishing screw 18.
The work to be polished always comes into contact with the inner surface of the new peripheral wall, that is, the transfer surface, so that a high polishing effect can be obtained even with low frequency vibration. Moves upward due to low frequency vibration, but falls at a low position. No chipping (cracking), scratches, etc. occur due to collision at the time of dropping. Polishing can be performed stably.

The arrow X shown in FIG. 1 indicates the progress of the work to be polished. The work to be polished supplied from the supply chute 24 into the rotary drum 12 by the conveying and polishing screw 18 is rotated forward in the traveling direction. It falls into the discharge chute 23 from the other end opening of the drum 12 and is discharged. Therefore, deburring polishing can be performed while continuously supplying and discharging the work to be polished.

When the inner surface of the peripheral wall of the rotary drum 12, that is, the transfer surface is flat, the work to be polished in contact with the transfer surface may slide down and the work to be polished in contact with the transfer surface may always be the same. 3 (a) and 3 (b)
As shown in (2), if a large number of convex portions 28 are provided on the surface of the vinyl chloride plate forming the peripheral wall of the rotary drum 12 to form irregularities,
As shown in FIG. 3 (c), the work 4 to be polished moves upward while being caught and rolled by the rotation of the rotary drum 12, and falls to the bottom of the rotary drum 12, which is a stagnant portion, as shown by an arrow Y. Therefore, the work 4 to be polished always comes into contact with the transfer surface, and the deburring effect of the work 4 to be polished can be enhanced.

Instead of providing a large number of projections 28 on the surface of a vinyl chloride plate forming the peripheral wall of the rotating drum 12, the rotating drum 12 is formed from a knitted body (or a punching plate) as shown in FIG. The inner transport surface may be made uneven by the holes 29. In this case, not only effects similar to those of the above-described convex portion 28 are obtained, but also the manufacture of the rotary drum 12 is simplified.

Of course, if a net or a punching plate is used and the projection 28 is provided on a surface other than the hole 24 serving as the inner transfer surface, the deburring effect can be further improved.

[0022]

According to the first aspect of the present invention, there is provided a polishing and polishing apparatus comprising a rotating drum having a regular polygonal cross section and a spiral-shaped protruding wall formed on the inner surface of the peripheral wall of the rotating drum from one end to the other end of the rotating drum. A screw, and a vibrating means for applying low-frequency vibration to the rotating drum, and the rotating drum is provided with a supply portion of the work to be polished on the rear side in the traveling direction of the transport polishing screw, on the forward side in the traveling direction. The work to be polished is provided with a discharge portion, so that low-frequency vibration gives less stress to the work to be polished, and the work to be polished moves upward when the work to be polished is rolled by the polishing screw. At this time, the work to be polished falls down quickly from a low position due to vibration, so that the work to be polished is not damaged or chipped (cracked) by the impact of the collision at the time of the fall. Some enables entirely polished by the polishing work, also by polishing the screw can transport while polishing the work, there is an effect that the order can continuously processed.

According to a second aspect of the present invention, in the first aspect of the present invention, the frequency of the low-frequency vibration is about 60 to 70 Hz. And the effect by vibration is also obtained, and there is an effect that stable polishing can be performed. According to a third aspect of the present invention, in the first aspect of the present invention, a large number of irregularities are formed on the inner surface of the peripheral wall of the rotary drum. Can be moved upward while being hooked on, so that a new workpiece can always be brought into contact with the inner surface of the peripheral wall of the rotating drum,
As a result, there is an effect that the rolling effect of the work to be polished is improved and the deburring effect can be enhanced.

According to a fourth aspect of the present invention, in the first aspect of the present invention, since the peripheral wall of the rotary drum has a mesh-like structure, the workpiece to be polished is caught in the rotary drum by the rotation of the rotary drum. The workpiece can be moved upward, and a new workpiece can be constantly brought into contact with the inner surface of the peripheral wall of the rotating drum. As a result, the rolling effect of the workpiece can be improved and the deburring effect can be enhanced. In addition, when a rotary drum is manufactured, a net or a punching plate can be used, and thus there is an effect that the manufacturing can be easily performed.

According to a fifth aspect of the present invention, in the first aspect of the invention, the peripheral wall of the rotary drum has a mesh structure and a large number of irregularities are formed on the inner surface of the peripheral wall. The workpiece can be moved upward while being hooked on the mesh, and the new workpiece can always be brought into contact with the inner surface of the peripheral wall of the rotating drum. As a result, the rolling effect of the workpiece can be improved, and especially the mesh and unevenness can be improved. With this, the rolling effect of the work to be polished is synergistically improved,
It is possible to further enhance the deburring effect, and furthermore, it is possible to use a net or a punching plate when manufacturing a rotary drum, so that there is an effect that it can be easily manufactured.

[Brief description of the drawings]

FIG. 1A is a front view of an embodiment of the present invention.
(B) is a side view with a part omitted from the above.

FIG. 2 is a perspective view of a polishing and conveying unit according to the first embodiment;

FIG. 3A is a sectional view of a rotary drum according to another embodiment of the present invention. FIG. 2B is an enlarged perspective view of a main part which can be partially broken and omitted. (C) is an operation explanatory view of the above.

FIG. 4 is a perspective view of a polishing and conveying unit according to another embodiment of the present invention.

FIG. 5 is a partially broken perspective view of a conventional example.

FIG. 6 is an operation explanatory view of the above.

FIG. 7 is a partially broken perspective view of another conventional example.

FIG. 8 is an operation explanatory view of the above.

FIG. 9A is an enlarged perspective view of a work to be polished before polishing. FIG. 2B is an enlarged perspective view of a workpiece to be polished using a conventional apparatus.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 vibrator 12 rotating drum 13 transport polishing section 18 transport polishing screw 16 guide roller 14 motor 21 timing belt 23 discharge chute 24 supply chute

Claims (5)

[Claims] A rotating drum having a polygonal cross section; a conveying and polishing screw comprising a spiral protruding wall formed from one end to the other end of the rotating drum on an inner surface of a peripheral wall of the rotating drum; Vibrating means for applying vibration, the rotary drum is provided with a supply section for the workpiece to be polished on the rear side in the traveling direction of the screw for transport and polishing, and a discharge section for the workpiece to be polished on the front side in the traveling direction. And a polishing and conveying device. 2. The frequency of said low frequency vibration is about 60 to 70.
2. The polishing and conveying device according to claim 1, wherein the frequency is in Hz. 3. The polishing and conveying apparatus according to claim 1, wherein a number of irregularities are formed on the inner surface of the peripheral wall of said rotary drum. 4. The polishing and conveying apparatus according to claim 1, wherein the peripheral wall of the rotary drum has a mesh structure. 5. The polishing and conveying apparatus according to claim 1, wherein the peripheral wall of the rotary drum has a mesh-like structure and a number of irregularities are formed on the inner surface of the peripheral wall.