JP3326360B2 - centrifuge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a centrifugal separator for removing oil from the surface of a workpiece such as a bolt or a nut wetted with oil during machining.

[0002]

2. Description of the Related Art Workpieces such as bolts and nuts, which are machine elements, are manufactured through processing by several lined processing machines.

For example, in the case of manufacturing a bolt, for example, a raw material is put into a header, forged into a bolt shape, fed to a rolling machine to cut a screw, and then formed into a hexagonal head by a trimming machine. There are processing steps such as processing.

[0004] Since a machine oil is used in each of these processing steps, it is necessary to remove oil adhering to the surface of the workpiece in order to facilitate transport and handling to the next step.

[0005] Therefore, a centrifuge is installed between each processing machine in order to remove oil adhering to the work surface.

In this type of conventional centrifugal separator, after the processing from the processing machine is finished, the oiled workpiece is fed to a hopper directly above the centrifugal separator by an inclined conveyor and put into a deoiling basket in the machine. Then, the centrifugal separator is driven to remove the oil by centrifugal force, and the work from which the oil has been removed is discharged from the deoiling basket to a receiving container, and the container is placed on an inclined conveyor or the like above the receiving hopper of the next processing machine. To be transported and loaded.

At the time of deoiling by the centrifugal separator as described above, the deoiling car rotates at a high speed, and each workpiece moves within the deoiling car to a higher position on the side wall of the deoiling car in order to seek a more stable position. Thus, after the oil has been stably adhered to the side wall surface of the deoiled car, deoiling is performed with almost no positional movement.

For this reason, in the case of a nut or a bag-shaped workpiece, oil adhering to the inside may not be effectively deoiled in some cases. Therefore, depending on the type of workpiece,
A technique is also employed in which a work is once taken out of the deoiling car and then re-introduced into the deoiler to perform deoiling.

[0009] In addition, a workpiece that has been subjected to a predetermined processing in an automatic processing line equipped with a plurality of processing machines is often subjected to processing such as washing and drying after deoiling. In addition, a washing device, a drying device and the like are also provided.

[0010]

As described above, in the conventional centrifugal separator, the deoiling effect varies depending on the type of workpiece.

Therefore, an object of the present invention is to improve the deoiling effect regardless of the form of a work by moving the work in a centrifugal separator stepwise to a plurality of deoiling baskets. It is an object of the present invention to provide a centrifuge in which drying can be performed in the same machine.

[0012]

In order to achieve the above object, according to the first aspect of the present invention, the body is bulged outward, and the body is directed toward the upper and lower openings. taper
A pair of the deoiling basket whose diameter has been reduced by being inclined in a slanted manner and the tray disposed at the center of the deoiling car separated from the deoiling basket, and a plurality of pairs of the deoiling basket and the trays are arranged in a vertical manner. In the centrifugal separator that rotates the deoiling basket and the tray at the same time and moves the workpiece placed on the tray by centrifugal force to supply it to the deoiling car body and deoiling, the size of each tray, Upper row
Workpieces falling from the oil basket due to the decline of centrifugal force are loaded.
Set the size to fit
A restraining body for restraining the movement of the workpiece.
Is separated from the peripheral edge of the pan by the generation of a predetermined centrifugal force.
And release the restraint of the workpiece .

[0013] Here, when a workpiece such as a bolt or a nut is to be deoiled, the deoiling basket is generally made of wire mesh.
The body has a cylindrical shape, a circular arc shape or the like, and a corresponding reduced-diameter opening of a de-oiling basket that moves up and down is joined to form a constricted space on the outside.

[0014] pan is properly is Hido in towards the deoiling basket workpieces placed on the corresponding centrifugal force
The shape, size, positional relationship with the deoiled car, and the like are set so that the oil is supplied to the deoiled car body . these
In the condition, the work put in the deoiling basket is placed
The tray at the top is also the tray corresponding to the deoiling basket from the next stage.
Same as a kettle .

In the above configuration, when the work is placed on the uppermost tray and the centrifuge is driven, the tray rotates.
The restraining body provided on the periphery of the tray is a work piece from the tray.
When a predetermined centrifugal force is generated from the state in which
When stop member is separated from the pan periphery, the workpiece centrifugal force
The oil is then supplied from the pan to the deoiled car body, and adheres to the deoiled car body to perform deoiling. Like this
And the pan starts rotating and reaches the high-speed rotation
When the work is fully attached, the work
Irrespective of the type and form of the workpiece,
It can be reliably supplied to customers. When the operation of the centrifugal separator is stopped after a certain period of time, the work is separated from the deoiled car body due to the decrease of the centrifugal force, and falls on the tray corresponding to the next deoiled car. Here, when the centrifugal separator is driven again, deoiling is performed by the same operation as described above.

When the driving and stopping of the centrifugal separator are repeated as described above, the workpiece is sequentially moved from the uppermost deoiling basket to the lower deoiling basket via the tray to perform deoiling. A nut or a bag-shaped workpiece is appropriately inverted so that oil adhering to the inside is effectively deoiled.

[0017] As described above, to deploy the pan to rotate deoiling cage integrally with deoiling cage central, it is also possible to fixedly supported by a support杆等extending the pan from the deoiling cage-side However, as in the second aspect of the present invention, the upper and lower trays are attached to a common support shaft, and the nozzle for supplying the support shaft with the cleaning liquid toward the deoiling basket in the lower stage than the uppermost stage. And a conduit connecting the nozzle to an external cleaning liquid supply source is preferably provided.

With this construction, the deoiling is performed by the uppermost deoiling basket, and the cleaning liquid is discharged from the nozzle in a state where the workpiece is stably adhered to the deoiling car body in the lower deoiling basket. The workpiece can be washed by spraying. On this occasion,
As in the case of deoiling, it is possible to drain the washing liquid attached to the workpiece by centrifugal force.

Further, the supporting shaft is provided with a nozzle for supplying a drying gas toward the deoiling basket at a stage lower than the uppermost stage, and the nozzle is connected to the nozzle for external drying. It is preferable to add a pipe connecting the gas supply source.

According to this structure, after the workpiece is washed, not only the washing liquid is drained by centrifugal force but also the drying gas is jetted from the nozzle while the workpiece is stably adhered to the deoiling basket body. In addition, the workpiece can be positively dried. The nozzle for injecting the cleaning liquid and the nozzle for injecting the drying gas may be provided in the same stage to wash and dry the workpiece in the same deoiling basket. The washing and drying of the workpiece may be performed in separate deoiling baskets by providing nozzles at different heights.

Further, as the centrifugal separator for deoiling and washing the workpiece, a deoiling basket is provided in the outer case, and is vertically joined in the outer case. It is preferable to provide a drain gutter corresponding to the constricted space formed outside the joint of the deoiling basket.

With such a configuration, the drainage oil or the cleaning drainage removed from the workpiece is individually taken out from the drainage gutter corresponding to each of the deoiling baskets, so that the post-treatment can be easily performed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a configuration diagram of a centrifuge. A pair of the deoiled car 1 and the tray 2 arranged in the center of the deoiled car 1
The plurality of pairs S1, S2, S3 are arranged in an upper and lower stage.

The deoiling basket 1 is made of wire mesh, and its body 1
a is swollen by taking a form such as a cylindrical shape or an arcuate cross section,
The diameter is reduced by inclining in a tapered manner from the body 1a toward the upper and lower openings, and the plurality of pairs S1, S2, and S3 of the deoiled car 1 are handled.
The openings are joined to form a constricted space 3 outside the joined portion. Of the deoiled car 1, the upper opening of the uppermost deoiling car 1 is used as the inlet 4 for the work A, and the lower opening of the lower oil remover 1 is the outlet 5 for the work A to the outside of the machine. And Incidentally, deoiling car 1 is rotatably set in an appropriate machine frame
Vignetting, intended to rotate is coupled to a rotary drive mechanism having a motor, these configurations are the same as those known centrifuge.

Among the receiving trays 1, the receiving tray 2 corresponding to the uppermost deoiling car 1 is a workpiece A put into the deoiling car 1.
Are placed on each of the trays 2 corresponding to the deoiling car 1 at the lower stage than the uppermost stage, and the workpieces A falling from the upper deoiling car 1 due to the decline of the centrifugal force are respectively placed thereon. the workpiece a was placed on the saucer 2, in which the receiving tray 2 is subjected <br/> fed by Hido by centrifugal force against the deoiling cage 1 corresponding rotating, for this, each pan The size of 2 is
The oil falling from the upper deoiling basket due to the decline of centrifugal force
The size is set to a size on which the work can be placed, and the positional relationship with the deoiling car 1 and the like are appropriately set.

The upper and lower receiving trays 2 are mounted on a common support shaft 6, and the support shaft 6 is supported by a suitable support member (not shown) extending from the deoiling car 1 side. Further, the support shaft 6 is provided with a nozzle 7 for injecting the cleaning liquid toward the deoiling basket 1 at a stage lower than the uppermost stage (the second stage in the embodiment). A pipeline 8 for connecting an external cleaning liquid supply source (not shown) is additionally provided, and the cleaning oil is supplied to the workpiece A (see FIG. 2) attached to the body of the deoiling car 1 by rotating at high speed. The workpiece A can be washed by spraying. Similarly, the support shaft 6 is provided with a nozzle 9 for blowing air for drying toward the deoiling car 1 at a lower stage (third stage in the embodiment) than the uppermost stage. A pipe 10 for connecting a gas supply source (not shown) is additionally provided, and
Is rotated at a high speed, and a drying gas (air) is blown against the workpiece A (see FIG. 2) attached to the body to actively dry the workpiece A. The nozzle 7 for spraying the cleaning liquid onto the workpiece A and the nozzle 9 for spraying the drying gas can be provided in the same stage.
In this case, the cleaning and drying of the workpiece A are performed by switching between spraying the cleaning liquid and blowing the drying gas during the rotation.

The deoiling car 1 is provided in an outer case 11.
To have. A drain gutter 12 is provided in the exterior case 11 corresponding to the constricted space 3 formed outside the joint of the deoiling car 1, and the drain oil or the cleaning drain oil deoiled from the workpiece A is provided. It can be taken out individually. At the periphery of the tray 2, a suppressor 13 for suppressing the movement of the workpiece A from the tray 2 is provided. The restraining body 13 functions as a kind of movable wall at the periphery of the tray 2, and pivots outwardly and vertically in the periphery of the tray 2.
a, the movement of the workpiece A is restrained by the tip of the restraining piece 13 in a normal state, and when the tray 2 starts rotating and a predetermined centrifugal force is applied. The work piece A with the tip of the stopper 13 separated from the peripheral edge of the tray 2
To release the deterrence. In addition, the restraining force of the work A by the restraining body 13 is appropriately set by a spring force interposed in the support shaft 13a, a centrifugal force applied to the restraining body 13 or the like.

In the above configuration, FIGS. 2 (a), (b),
The deoiling procedure will be described with reference to (c).

(A) With the centrifuge stopped, the workpiece A put into the machine is placed on the tray 2 of the uppermost stage S1.

(B) When the centrifugal separator is driven, the tray 2 rotates and the workpiece A placed on the tray 2 is moved to the periphery of the tray.
The flying from the tray 2 is suppressed by the deterrent body 13 provided in the section.
From the stopped state, the tray 2 reaches the high-speed rotation range and
When the force is sufficient, the restraining body 13 is
Work A moves from pan 2 with centrifugal force
And supplied to the deoiled car body 1a,
The oil is attached and deoiling is performed.

(C) When the centrifugal separator is stopped, the centrifugal force decreases as the rotation of the deoiling car 1 decreases, and the work A falls from the deoiling car 1 and is placed on the lower tray 2. Thereafter, when the centrifugal separator is driven again, deoiling is performed by the same operation as in the above (a). In addition, in the deoiling car 1 of the stage S2 (or the stage S3) below the deoiling car 1 of the uppermost stage S1, the cleaning liquid is sprayed from the nozzle 7 to the workpiece A after deoiling, in addition to deoiling. And drying can be positively performed by blowing a drying gas from the nozzle 9.

[0035]

The present invention is embodied in the form described above. According to the present invention, the workpiece to be loaded into the machine is placed on the uppermost tray, and thereafter, the drive of the centrifugal separator is performed. When the stop is repeated, the workpiece is dropped from the top degreasing basket to the lower degreasing basket via the tray in order, and deoiling is performed. Also, the appropriate reversal is performed, and the oil adhering to the inside is effectively removed.

In addition, the deoiling basket at the lower stage than the uppermost stage can be fitted with a nozzle for injecting the cleaning liquid or a nozzle for injecting the drying gas to the support shaft on which the tray is provided. Washing and drying of the workpiece after deoiling can be easily performed in the same machine.

[Brief description of the drawings]

FIG. 1 is a configuration sectional view of a centrifuge according to the present invention.

FIG. 2 is an explanatory view of a deoiling procedure by the centrifugal separator of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Deoiling basket 1a ... Deoiling basket body 2 ... Receiving tray 3 ... Constricted part 4 ... Input port 5 ... Discharge port 6 ... Support shaft 7 ... Nozzle 8 ... Pipe line 9 ... Nozzle 10 ... Pipe line 11 ... Outer case 12 ... drain gutter 13 ... deterrent body 13a ... deterrent body support shaft S1 ... uppermost step S2, S3 ... lower step than the uppermost step A ... workpiece

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B04B 3/00 F26B 5/08 B23Q 11/00

Claims (4)

(57) [Claims] 1. A deoiling basket whose diameter is reduced by swelling the body outward and being tapered from the body toward the upper and lower openings , and separated from the deoiling basket. A pair of trays arranged in the center of the deoiling basket is arranged in pairs , and a plurality of pairs of the deoiling basket and the trays are arranged in upper and lower stages, and the deoiling basket and the trays are simultaneously rotated and placed on the trays. Deoiled by moving the processed workpiece by centrifugal force
In the centrifuge where the oil is supplied to the car body and deoiled,
Remove the size of the kettle from the upper deoiling basket due to the declining centrifugal force.
And set the size to accommodate the falling workpiece.
Suppress the movement of the workpiece from the pan around the pan
A deterrent body is provided, and the deterrent body is generated by a predetermined centrifugal force.
A centrifugal separator, which is separated from a peripheral portion of a tray to release a restraint on a workpiece . 2. An upper and lower stepped tray is used as a common support shaft.
Attached to the support shaft, provided with a nozzle for supplying a cleaning liquid toward the deoiling cage stages below the uppermost stage, characterized by being additionally provided a conduit connecting said nozzle and an external washing liquid supply source The centrifuge according to claim 1. 3. A support shaft is provided with a nozzle for supplying a drying gas to a deoiling basket at a stage lower than the uppermost stage, and a pipe connecting the nozzle and an external drying gas supply source is provided. The centrifuge according to claim 1 or 2, wherein: 4. A degreasing basket is provided in an outer case, and a drain gutter is provided in the outer case corresponding to a constricted space formed outside a joint portion of the degreasing basket joined vertically. The centrifuge according to claim 1, wherein: