JP2002337051A - Grinding/polishing/cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously grind/polish/clean a number of objects to be ground/ polished cleaned while the objects are not caught in a hole (not shown in Fig.) in an endless belt, by improving a grinding/polishing/cleaning method and a device therefore. SOLUTION: An endless belt 16 is wound around a lower pulley 2d and an upper pulley 2e. Once pair of rotary discs 14a (drawn as a model) 14b are pressed against the endless belt to form a recessed shape column surface 16a of the belt. Conveyor buckets 24 are attached to the endless belt 16, and are rotated in arrow directions g, g, g" so that a grinding/polishing/cleaning material (not shown in Fig.) gathered on the endless belt 16 can be recovered by scooping it. Thus, the grinding/polishing/cleaning material can be recovered without providing a hole on the endless belt 16, and there is no risk that the object to be worked is caught in a hole, since the belt has no hole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for projecting a polishing material onto a workpiece to clean the workpiece, and more particularly, to continuously polishing a large number of small and medium-sized industrially produced members. The present invention relates to a cleaning method and a cleaning apparatus suitable for cleaning.

[0002]

2. Description of the Related Art There are two types of blasting devices: a nozzle type in which blasting material (shot) is blown by air, and a centrifugal projection type in which blasting material is blown off by a rotor, each having advantages and disadvantages. . The nozzle method is suitable for blasting by manual operation in small-volume production because the spraying direction and blasting point of the blasting material can be easily changed.However, an air compressor must be installed. , Large power consumption (low energy efficiency). The centrifugal projection method consumes little power and is suitable for automatically mass-processing many small parts. The present invention is applied to a centrifugal projection type polisher.

FIG. 7 shows an example of a known centrifugal projection type polishing apparatus, in which (A) is a side view and (B) is a front view. 1
Is a centrifugal blasting material projector having a structure in which a rotor 1b is rotated by an electric motor 1a, and is fixedly mounted on a frame of the apparatus. This projector projects the abrasive material in the direction of arrow a while diffusing it (the direction of diffusion is perpendicular to the plane of the drawing in the figure). A tumbler mechanism is provided as described below in order to position the object to be polished at the position where the above-mentioned blast material is projected (arrow a). That is, the endless belt 3 is wound around the three cylindrical pulleys 2a, 2b, and 2c, and a concave curved surface that is in contact with the virtually horizontal virtual cylindrical surface 4 is formed with reference to FIG. See below).

[0004] A number of small objects to be polished (not shown in this figure, shown in FIG. 8 described later) are loaded from the door 6 onto the endless belt 3. The large number of small objects to be polished are stirred by a tumbler formed by the endless belt 3, and are ejected from the door 6 after receiving the blasting material (arrow a) while changing the posture in various ways. The abrasive material falls from a number of through holes (shown in FIG. 8 described later) formed in the endless belt 3, is guided by the screw conveyor 8 by the tray 7, is collected, is raised by the elevator 9, and is repeated. used. 6 'is the door 6
Is an open state, 6 "is a door balancer, 10 is a motor for driving the elevator 9. 11 is an abrasive material tank, 12 is a screen, and 13 is an abrasive material supply tank. is there.

FIG. 8 is a perspective view schematically illustrating the tumbler mechanism composed of the endless belt shown in FIG. 7 described above. It is the figure which added the thing. A pair of rotating disks 14a and 14b is provided so as to cover both ends of the concave U-shaped concave surface formed by the endless belt 3, and rotates counterclockwise (counterclockwise) in the figure. Since the endless belt 3 is rotated so as to have the same peripheral speed as the rotating disks 14a and 14b, a large number of workpieces
Are agitated with each other while rolling, and are evenly blasted by the collision of the blasting material. The projection locus of the abrasive material is indicated by the reference symbol a. The endless belt 3 has a large number of through holes 3a. The size of the through hole is set so that the object to be polished 15 does not slip through and fall, and the polished material can pass freely. When the polishing operation proceeds to a desired degree, the endless belt 3 is reversed.
The object to be polished 15 is dropped as shown by the arrow b and carried out. When the material to be polished is carried out, instead of reversing the endless belt 3 as described with reference to FIG. 8, the endless belt 3 (not shown) on which the material to be polished 15 is placed and its supporting member are replaced. A method of tilting the entire tumbler mechanism including the tumbler mechanism is also known and used.

[0006]

As described above, the conventional blasting apparatus uses a centrifugal blasting material projector (also called an impeller type or a rotor type), so long as the polished material is polished. Input and output are intermittent. Intermittent removal from the blasting device means that substantial operation of the blasting machine is intermittent (while the polished material is being removed, The operation of the material projector must be stopped). In addition, if the removal of the polished work from the blasting device is intermittent, the removal of the product after the blasting process is intermittent, requiring large transport equipment and manual labor compared to the number of products. . There has also been proposed a polishing apparatus improved so that such problems can be solved and continuous cleaning can be performed (for example, Japanese Patent Application No. 11-265889, polishing apparatus). However, since many endless holes 3a are formed in the endless belt 3 shown in FIG. 8, there is a possibility that a problem that a projection of a workpiece is caught in the endless holes may occur. The present invention has been made in view of the above circumstances, and a large number of small objects to be polished can be continuously polished by a centrifugal blasting material projector, and are continuously carried out. It is an object of the present invention to provide a lapping method and a lapping apparatus capable of significantly reducing the risk of projections of a workpiece being caught in a through hole for carrying out and collecting the lapping material. .

[0007]

The basic principle of the present invention created to achieve the above object will be briefly described below with reference to FIG. 4 corresponding to the embodiment. That is, by improving the polishing apparatus, a large number of objects to be polished can be continuously polished and unloaded continuously, and
In order to prevent a workpiece (not shown) from being caught on the endless belt 16, the endless belt 16 is wound around the lower pulley 2d and the upper pulley 2e, and a pair of rotating disks 14a (schematically drawn). Press) 14b to form a concave cylindrical surface 16a of the belt. When the conveyor bucket 24 is attached to the endless belt 16 and rotated circumferentially as indicated by arrows g, g ′, and g ″,
The abrasive material (not shown) accumulated on the endless belt 16 can be scooped out and collected. Therefore, the abrasive material can be collected without providing a hole in the endless belt 16, and since there is no hole, there is no possibility that the workpiece is caught in the hole.

When FIG. 4 corresponding to one embodiment of the present invention is compared with FIG. 8 which is a conventional example, a pulley 2b and a pulley 2 shown in FIG. 2a are located on opposite sides of each other. In FIG. 4 (the present invention), the lower pulley 2d and the upper pulley 2e are located on the same side of the vertical line Z. From another angle, what was said above in this paragraph is as follows.
Endless belts (3, 16) are rotating discs (14b)
Paying attention to the portion that is wound around the rotating disk and contacts with the rotating disk, it intersects with the vertical line Z in the conventional example (FIG. 8), whereas in FIG. It is located on one side. The cause of the characteristic difference described above is that the lower pulley 2d in FIG. 4 (the present invention) is located below the rotating disk 14b.

[0009] Based on the principle described above, claim 1
The configuration of the polishing method according to the invention (see FIG. 4) assumes a substantially horizontal cylinder (4), and is located at each of both end faces of the virtual cylinder to form a pair of rotating disks (14a, 14b). )
And a lower pulley (2d) is installed near and below the virtual cylinder and in parallel with it, and near the side of the virtual cylinder and parallel to and above the center line of the virtual cylinder. An upper end pulley (2e) is installed with the center line positioned at the center, and an endless annular endless belt (16) having a width substantially equal to the length of the virtual cylinder is attached to the rotating disk, the lower pulley, And an upper pulley and, if necessary, a tension pulley (2f) to form a concave cylindrical surface (16a) corresponding to the virtual cylindrical surface. While rotating the endless belt in the upward moving direction, the object to be polished is thrown onto the endless belt having the concave cylindrical surface, and the object to be polished is scraped up by the endless belt. While 拌, characterized by projecting blast material from above. According to the method of the first aspect described above, the cleaning operation can be performed not intermittently but continuously. That is, a virtual cylinder formed by a pair of rotating disks is slightly inclined, or a work transfer means is provided in parallel, so that a work (workpiece) is substantially parallel to the center line of the virtual cylinder. , And the blasting material can be projected to continuously perform the blasting operation.

The configuration of the method according to the second aspect of the present invention is shown in FIG.
Reference) In addition to the constituent elements of the method of the invention of claim 1, in addition to the concave cylindrical surface of the endless belt (16), substantially the center line of the virtual cylinder is formed so as to form an irregular U-shape. A conveying means (17) having a parallel surface is provided, and the object to be polished is thrown into the upstream side of the conveying means, and the thrown object is thrown into the concave cylindrical surface (16) of the endless belt (16).
a) The object to be polished is moved in a fixed direction by the transporting means while being stirred and rotated irregularly on the step a), and the object to be polished is discharged downstream of the transporting means.
According to the method of the present invention described above, the convey means is provided in parallel with the concave cylindrical surface formed by the endless belt, so that the object to be polished is positioned at the center of the concave cylindrical surface. It can be conveyed continuously in a direction substantially parallel to the line. The reason why the conveying means and the endless belt can cooperate in this manner is that the concave cylindrical surface of the endless belt is moved to one side of the vertical line Z by the configuration of claim 1.

According to a third aspect of the present invention, in addition to the constituent elements of the second aspect of the present invention (see FIG. 6), a plurality of parallel rolls (17a to 17a) are used as the transfer means.
17d) Work transfer conveyor wound around (17)
Or a guide plate (25a) inclined by an angle θ with respect to the vertical line V, and a guide plate (25a) provided on at least one surface of the guide plate and having an angle φ larger than the angle θ with respect to the vertical line V. The present invention is characterized in that a work transport guide (25) comprising a large number of inclined ridges (25b) having an inclination is used. According to the method of the third aspect described above, the workpiece can be fed in a substantially horizontal direction at a desired speed while supporting the workpiece on a substantially planar surface. Can be evenly cleaned. Although the cleaning method according to the present invention is originally suitable for medium-sized and small-sized objects to be polished, the work transfer conveyor according to the third aspect is particularly suitable for medium-sized objects to be polished, and a work transfer guide. Is particularly suitable for small objects to be polished.

The structure of the invention method according to claim 4 is the same as that of any one of claims 1 to 3 (see FIGS. 4 and 5).
Without drilling through holes, the endless belt (1
6), a box-shaped or gutter-shaped member functioning as a bucket of a bucket conveyor is attached, and the box-shaped or gutter-shaped member is rotated circumferentially, and the scavenging material is scooped up and collected by the box-shaped or gutter-shaped member. I do. According to the invention method of claim 4 described above, the abrasive material can be scooped out and collected by effectively utilizing the circumferential rotation of the endless belt, and the endless belt is not perforated.
The possibility that the object to be polished is caught in the through hole is completely eliminated.

According to a fifth aspect of the present invention, there is provided a device according to the present invention (see FIG. 4), comprising a pair of rotating disks (14a, 14b) having a substantially horizontal axis xx as a rotation center axis; In parallel, a lower pulley (2) installed near the lower part of the pair of rotating disks
d) and an upper pulley (2e) provided at a position higher than the lower pulley in parallel with the axis xx;
A pair of rotating disks, a lower pulley, and an endless belt (16) that rotates around the upper pulley, wherein the endless belt has a radius of curvature equal to the radius of the pair of rotating disks. Concave cylindrical surface (16)
a) is formed, and the part where the endless belt forms a concave cylindrical surface is characterized in that it has a structure that can be rotated so as to move upward from below during normal operation. According to the apparatus of the fifth aspect described above, the method of the first aspect can be easily implemented, and its effect can be sufficiently exhibited.

The structure of the invention device according to claim 6 is the same as that of the invention device of claim 5 (see FIGS. 2, 4 and 6A). The workpiece transfer conveyor (1) is opposed to the concave cylindrical surface (16a).
7), a work input port (19) is provided on the upstream side of the work transfer conveyor, and a work carry-out port (22) is also provided on the downstream side, and the work transfer conveyors are parallel to each other. Multiple rolls (1
7a to 17d), an endless annular conveyor belt (17
e) is wound around. According to the apparatus of the invention described in claim 6 described above, a large number of workpieces can be transported at a constant speed by cooperating the work transport conveyor with the endless belt. It can be evenly cleaned, and is particularly suitable for medium-sized objects to be polished.

The structure of the invention device according to claim 7 is the same as that of the invention device of claim 5 (see FIGS. 2, 4 and 6B), but also via the axis xx. A work transfer guide (25) is provided so as to face the concave cylindrical surface (16a), and a work input port (19) is provided on the upstream side of the work transfer guide, and a work discharge port (22) is also provided on the downstream side. The work transport guide is provided on the surface of the guide plate (25) inclined at an angle θ with respect to the vertical line V, on the surface facing obliquely upward, with an angle φ larger than the angle θ. Numerous inclined ridges (25
b) is characterized in that it has a lined structure. According to the apparatus of the seventh aspect described above, a large number of workpieces can be transported at a desired speed by cooperating the work transport guide with the endless belt. The object can be evenly cleaned, and is particularly suitable for a small object to be polished.

According to an eighth aspect of the present invention, in addition to the constitutional requirements of the sixth or seventh aspect (see FIGS. 2 and 4), the structure of the apparatus is provided above the concave cylindrical surface (16a). An abrasive material projecting device (1) comprising a rotor (1b) having a rotation axis that crosses the axis xx at right angles to the axis xx and a motor (1b) for driving the rotor is provided. The blasting material projecting device has a structure in which blasting material is projected radially from the vicinity of the work inlet (19) to the vicinity of the work outlet (22) toward the concave cylindrical surface. It is characterized by the following. According to the invention device of claim 8 described above, the object to be polished is transported while being stirred while being stirred on the concave cylindrical surface formed by the endless belt.
The blasting material can be projected onto the area where the workpiece is being conveyed, and the blasting operation can be automatically performed.

According to a ninth aspect of the present invention, in addition to the constituent elements of the fifth to eighth aspects of the invention (see FIG. 4), the endless belt (16) is provided with an abrasive material. It is characterized in that a through-hole to be passed is not formed, and a box-shaped or gutter-shaped member functioning as a bucket of a bucket conveyor is attached to the endless belt (16). According to the apparatus of the ninth aspect described above, the abrasive material can be scooped and collected without the need to provide a dedicated drive mechanism by effectively utilizing the circumferential rotation of the endless belt. For this reason, there is no need to provide a through-hole in the endless belt for allowing the cleaning material to pass through and collect the same, and therefore there is no possibility that the object to be cleaned is caught by the through-hole.

The configuration of the invention device of claim 10 is the same as that of the invention device of claim 9 (FIG. 5A,
(See (B)), the member functioning as the bucket is
It is a “gutter-shaped member having a U-shaped cross section or a U-shaped cross section or a shape similar thereto” mounted in the width direction of the endless belt (16), and “a large number of A lid-shaped member having a hole or an opening ”is mounted. Claim 10 described above.
According to the apparatus of the present invention, by setting a hole or an opening having an appropriate shape and size in accordance with the shape and size of the object to be polished and the properties of the material to be polished, the transport of the object to be polished is not hindered. Scavenging material can be smoothly scooped out and collected.

The structure of the invention apparatus according to claim 11 is the same as that of claim 9 or claim 10 (FIG. 5).
A plurality of types of "box-shaped or gutter-shaped members functioning as buckets" are prepared for one polishing apparatus, and the plurality of types of members are endless belts (16).
It is characterized in that it has a structure that can be attached to and detached from.
According to the apparatus of the eleventh aspect described above, when the material to be polished and / or the material to be polished is changed, the optimum “box-shaped or gutter-shaped member functioning as a bucket” is correspondingly changed. Can be used.

[0020]

1 to 3 show one embodiment of the apparatus of the present invention.
1 shows a side view, FIG. 2 is a front view, and FIG. 3 is a plan view. Next, an outline of the configuration will be described with reference to FIGS. 1 and 2. A pair of rotating disks 14a and 14b are arranged around a substantially horizontal axis xx as a center of rotation. Substantially horizontal is meant to include slightly inclined. Below the rotating disks 14a, 14b, a lower pulley 2d is provided in parallel with the rotating disks 14a, 14b, and an upper pulley 2e is provided in parallel with the lower pulley 2e, being positioned higher than the rotating disks 14a, 14b. An endless belt 16 is wound around the rotating disks 14a, 14b, the lower pulley 2d, the upper pulley, and the tension pulley 2f. However, the rotating disks 14a, 14b are located outside the closed curve represented by the cross section of the endless belt 16 shown in FIG. This state is shown in FIG. FIG. 4 is a partial perspective view schematically illustrating a main part of the embodiment described above. It is not a realistic projection because it has been modeled. In particular, the rotating disk 14a indicated by the imaginary line is drawn to the right on the xx axis in FIG. Z shown in FIG. 4 is a vertical line passing through the center line xx of the rotating disk 14a, and the center line of the lower pulley 2d is located near the Z axis. With the above-described configuration, the area around 16a indicated by the imaginary line is “a pair of rotating disks 14a, 14a”.
A concave cylindrical surface is formed along the outer peripheral surface of a virtual cylinder 4 "having b as a top surface and a bottom surface. Endless belt 1
6 is rotated in the direction of the arrow g, g ', g ", that is, in the direction in which the portion forming the concave cylindrical surface 16a rises. The arrow c indicates the rotational direction of the rotary cylinder 14b. This arrow c is also shown in FIG.

1 to 4 will be described later in detail with reference to FIG. 6. For example, as shown in FIG. 1 and FIG. The belt 16 has a flat surface facing the concave cylindrical surface 16a (FIG. 4), and the flat surface and the concave cylindrical surface face each other with the axis xx interposed therebetween, forming a distorted U-shape. When the object to be polished is put into the above-mentioned illegal U-shaped part,
The endless belt 16 is lifted up by the upward movement in the direction of the arrow g, is stirred, and changes its posture in various ways. As shown by the arrow d in FIG. 1, the abrasive material is projected from the abrasive material projector 1 toward the above-mentioned object to be cleaned which is being stirred. This abrasive projection is illustrated in more detail in FIG. An object to be polished (not shown) is input from the work input port 19 and is conveyed by the work conveyer 17 as shown by an arrow e.
The rotor 1b of the blasting material projection device 1 is rotated by the motor 1a, and the direction of its rotation axis crosses at right angles to the xx axis described above, and is between the arrows d 'and d ". Then, the material to be polished is radially projected, so that the object to be polished is polished during the period in which it is conveyed in the direction of arrow e.

(See FIG. 4) The endless belt 16 includes
A number of conveyor buckets 24 are mounted at right angles to the running direction, that is, in the width direction of the endless belt 16. Conveyor bucket 24 rotates circumferentially along with the circumferential rotation of endless belt 16, and scoops up the abrasive material (not shown) that has completed the role of the abrasive cleaning and discharges it as indicated by arrow g '. The released abrasive material falls below the endless belt 16, accumulates in the tray 7 shown in FIG. 1, is collected by the screw conveyor 8a, and is conveyed by the screw conveyor 8b. Then, it is lifted by the elevator 9 driven by the elevator motor 10 and collected through the separator 23. FIG. 5 (A) shows the conveyor bucket 2
FIG. 4 is an enlarged detailed view of FIG. The gutter-like bucket 24 a
b, and a large number of through holes 24c are formed in the cover plate 24b. The gutter-shaped bucket 24 a
It is detachably attached to the endless belt 16 by d and a nut 24e. The gutter-like bucket 24
A gutter-like bucket 24f shown in FIG. 5B is prepared separately from a, so that it can be easily detached and replaced. A slit 24h is formed in the lid plate 24g of the gutter-like bucket 24f. If the shape, size, material, etc. of the material to be polished change, it is often necessary to change the blasting material accordingly, so if the blasting material is changed, a conveyor bucket suitable for a new type of blasting material Replace with and use.

FIG. 6 shows the work transfer conveyor 17 schematically described with reference to FIG.
(A) two parallel rolls 1
An endless conveyor belt 17e is wound around 7a and 17b, and is driven to rotate in the direction of arrow h. Thus, the object to be polished (not shown) is conveyed in the direction of arrow e while being stirred by the endless belt 16 described above. FIG. 6B is a perspective view of a work transfer guide 25 that can be installed in place of the work transfer conveyor 17.
The guide plate 25a is inclined by an angle θ with respect to the vertical line V. An inclined ridge 25b is arranged in a row on a surface of the inclined plate 25 facing the endless belt.
5b is set to be larger than the angle θ. As described above, the workpiece to be polished up by the endless belt 16 is moved by the work transport guide 2 as indicated by an arrow i.
5 is guided by the inclined ridge 25b, and the arrow j
, And by repeating this, a trajectory similar to a spiral is drawn, and as a result, the trajectory is sent in the direction of arrow e. Instead of the belt conveyor shown in FIG.
The same effect can be obtained by providing the roller conveyor 26 as shown in FIG.

[0024]

As described above, according to the embodiment of the present invention,
As apparent from the function, according to the method of the present invention, the cleaning operation can be performed continuously, not intermittently. That is, a virtual cylinder formed by a pair of rotating disks is slightly inclined, or a work transfer means is provided in parallel, so that a work (workpiece) is substantially parallel to the center line of the virtual cylinder. , And the blasting material can be projected to continuously perform the blasting operation. According to the method of the present invention, the conveyed means is provided in parallel with the concave cylindrical surface formed by the endless belt, so that the object to be polished is substantially parallel to the center line of the concave cylindrical surface. In any direction. According to the third aspect of the present invention, the workpiece can be fed in a substantially horizontal direction at a desired speed while supporting the workpiece on a substantially flat surface, so that a large number of workpieces can be evenly ground. Can be swept away. Although the cleaning method according to the present invention is originally suitable for medium-sized and small-sized objects to be polished, the work transfer conveyor according to the third aspect is particularly suitable for medium-sized objects to be polished, and a work transfer guide. Is particularly suitable for small objects to be polished.
According to the method of claim 4, the abrasive material can be scooped out and collected by effectively utilizing the circumferential rotation of the endless belt, and the endless belt does not have through holes, so that the object to be cleaned is There is no risk of getting stuck in the through hole.

According to the fifth aspect of the present invention, the effect of the first aspect of the present invention can be easily carried out, and the effect thereof can be sufficiently exhibited. According to the invention device of claim 6,
By cooperating the work transport conveyor with the endless belt, it is possible to transport a large number of objects to be polished at a constant speed, it is possible to uniformly clean the large number of objects to be polished,
In particular, it is suitable for medium-sized objects to be polished. According to the seventh aspect of the present invention, a large number of workpieces can be transported at a desired speed by cooperating the work transport guide with the endless belt. It can be swept, and is particularly suitable for small objects to be polished. According to the apparatus of the present invention, the object to be polished is transported while being agitated on the concave cylindrical surface formed by the endless belt. Blasting material to automatically perform blasting work. According to the ninth aspect of the present invention, the abrasive material can be scooped up and collected without the necessity of providing a dedicated drive mechanism by effectively utilizing the circumferential rotation of the endless belt. For this reason, there is no need to provide a through-hole in the endless belt for allowing the cleaning material to pass through and collect the same, and therefore there is no possibility that the object to be cleaned is caught by the through-hole. According to the apparatus of the tenth aspect, by setting a hole or an opening having an appropriate shape and size according to the shape and size of the object to be polished and the properties of the material to be polished, the conveyance of the object to be polished is obstructed. Therefore, it is possible to smoothly scoop out and collect the abrasive. According to the eleventh aspect of the present invention, when the material to be polished and / or the material to be polished is changed, an optimum “box-shaped or gutter-shaped member functioning as a bucket” is used in response to the change. it can.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing one embodiment of a polishing apparatus according to the present invention.

FIG. 2 is a schematic front view of the embodiment shown in FIG.

FIG. 3 is a schematic plan view of the embodiment shown in FIGS. 1 and 2 described above.

FIG. 4 is a schematic perspective view in which main parts of the embodiment shown in FIGS. 1 to 3 are extracted and drawn.

FIG. 5 is a schematic perspective view for explaining details of a conveyor bucket according to the present invention.

FIG. 6 is a schematic perspective view showing a work transfer conveyor and a work transfer guide according to the present invention.

FIG. 7 is a two-sided view showing a conventional cleaning apparatus.

FIG. 8 is a perspective view in which main parts of the conventional example shown in FIG. 7 are extracted and drawn.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Abrasive material projector, 1a ... Motor, 1b ... Rotor, 2
a, 2b: pulley, 3: endless belt, 3a: through hole, 4: virtual cylindrical surface, 6: door, 6 ': door open position, 6 ": door balancer, 7: tray, 8: screw conveyor, 9 elevator, 10 elevator motor, 11 abrasive material tank, 12 screen, 13 abrasive material supply tank, 14, 14a, 14b rotating disk, 1
5: object to be cleaned, 16: endless belt, 16a: concave cylindrical surface, 17: work conveyor, 17a, 17b: roll, 19: work input port, 22: work discharge port, 24
... Conveyor bucket, 24a ... Gutter-shaped bucket, 24b ...
Cover plate, 24c: through hole, 24h: slit, 25: work transfer guide, 25a: inclined ridge, 26: roller conveyor.

Claims (11)

[Claims] 1. Assuming a substantially horizontal cylinder, a pair of rotating disks (14a, 14b) are placed on each of both end faces of the virtual cylinder, and near a lower portion of the virtual cylinder, The lower pulley (2d) is installed in parallel with this, and the center line is positioned near the side of the virtual cylinder and in parallel with this, above the center line of the cylinder, and the upper pulley (2d) is placed.
e) installing the endless annular endless belt (16) having a width dimension substantially equal to the length dimension of the virtual cylinder, the rotating disk, the lower pulley and the upper pulley, and if necessary, a tension pulley ( 2f) to form a concave cylindrical surface (16a) corresponding to the virtual cylindrical surface, and the endless belt in a direction in which the endless belt of the portion forming the concave cylindrical surface moves upward. The object to be polished is thrown onto the endless belt having the concave cylindrical surface while being swirled, and the material to be polished is stirred from above the endless belt while being swept up by the endless belt. Blasting method characterized by projecting. 2. Conveying means (1) having a surface substantially parallel to the center line of the virtual cylinder so as to form an irregular U-shape so as to face the concave cylindrical surface of the endless belt (16).
7) is provided, and the object to be polished is thrown into the upstream side of the conveying means, and the thrown object is stirred on the concave cylindrical surface (16a) of the endless belt (16) to be irregular. 2. The cleaning method according to claim 1, wherein the object to be polished is moved in a fixed direction by the transporting means while rotating, and the object to be polished is discharged downstream of the transporting means. 3. A work transfer conveyor (17) wound around a plurality of parallel rolls (17a to 17d) as the transfer means, or a guide inclined by an angle θ with respect to a vertical line V. Board (2
5a) and a plurality of inclined ridges (25b) provided on at least one surface of the guide plate and having an inclination of an angle φ larger than the angle θ with respect to the vertical line V. 3. The cleaning method according to claim 2, wherein 4. A box-shaped or gutter-shaped endless belt (16) that does not have a hole through which abrasive material passes and that functions as a bucket of a bucket conveyor. 4. The polishing method according to claim 1, wherein said member is attached and rotated circumferentially together with the endless belt, and the polishing material is scooped up and collected by said box-shaped or gutter-shaped member. Sweep method. 5. A pair of rotating disks (14a, 14b) having a substantially horizontal axis xx as a center axis of rotation, and in the vicinity of a lower portion of the pair of rotating disks in parallel with the axis xx. An installed lower pulley (2d), and an upper pulley (2e) provided at a position higher than the lower pulley in parallel with the axis xx; the pair of rotating disks, the lower pulley, and the upper An endless belt (16) that is wound around a pulley and rotates. The endless belt has a concave cylindrical surface (16a) having a radius of curvature equal to the radius of the pair of rotating disks. A polishing apparatus characterized in that the endless belt is formed, and a portion where the endless belt forms a concave cylindrical surface is configured to be rotated so as to move upward from below during normal operation. 6. A workpiece transfer conveyor (1) facing the concave cylindrical surface (16a) via the axis xx.
7) is provided, and a work inlet (1) is provided on the upstream side of the work transfer conveyor.
9) is also provided with a work outlet (22) on the downstream side, respectively, and the work transport conveyor is provided with a plurality of rolls (17a to 17d) parallel to each other and an endless annular conveyor belt (17e). ).
The cleaning device according to claim 5. 7. A work transfer guide (25) is provided facing the concave cylindrical surface (16a) via the axis xx, and a work input port (19) is provided upstream of the work transfer guide.
However, work outlets (22) are also provided on the downstream side, respectively, and the work transfer guide is directed obliquely upward of a guide plate (25) inclined by an angle θ with respect to the vertical line V. On the surface,
A plurality of inclined ridges (25b) having an inclination angle of an angle φ with respect to the angle θ are arranged in a line.
The cleaning device according to claim 5. 8. Above said concave cylindrical surface (16a),
A rotor (1b) having a rotation axis that crosses the axis xx at a substantially right angle, and a motor (1b) for driving it
And an abrasive material projecting device (1) comprising: a workpiece carrying port (22) from the vicinity of the workpiece inlet (19) toward the concave cylindrical surface;
The blasting device according to claim 6 or 7, wherein the blasting material has a structure in which the blasting material is projected radially up to the vicinity. 9. A box or gutter functioning as a bucket of a bucket conveyor, wherein the endless belt (16) is not provided with a through-hole through which abrasive material passes. The cleaning device according to any one of claims 5 to 8, wherein a shape member is attached. 10. The member functioning as the bucket is a “gutter-shaped member having a U-shaped cross section or a U-shaped cross section or a shape similar thereto” mounted in the width direction of the endless belt (16). And, and covering the opening, "lid-shaped member having a large number of holes or openings" is mounted, characterized in that,
The cleaning apparatus according to claim 9. 11. A plurality of types of "box-shaped or gutter-shaped members functioning as buckets" are prepared for one polishing apparatus, and these plural types of members are provided for the endless belt (16). The cleaning apparatus according to claim 9 or 10, wherein the cleaning apparatus has a detachable structure.