JPH0985198A - Washer for workpieces - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent chips and dirt that are filtered out by washing from being mixed in a washing liquid by installing a chip filtering part of a wire net in a prescribed region from the lower end of a rotary drum upward and providing a spiral forwarding blade on the inner periphery of the drum to push chips out. SOLUTION: A washing liquid that performs cleaning of workpieces from a cleaning chamber 11 and contains chips is introduced into the lower end part of an inclined rotary drum 15 through troughs 12, 13 provided successively to the cleaning chamber 11. A chip filtering part 18 is formed of a wire net in a prescribed region from the lower end part of the rotary drum 15 upward. A spiral blade 19 is installed on the inner periphery of the drum 15 from the lower end to an upper end opening 17 to push out the chips to outside the upper end opening 17. Besides, a washing liquid tank 14 is installed below the drum 15 near the chip filtering part 18 of the rotary drum 15. Thus the chips and dirt accumulated in the basket 8 are filtered out to surely prevent them from being mixed in the washing liquid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machined part cleaning apparatus used to remove chips attached to a machined part during the manufacture of the machined part.

[0002]

2. Description of the Related Art As a conventional apparatus for cleaning metal-working parts, there is, for example, one shown in FIG. 7, which is described below. A cleaning bucket 2 for accommodating the processed parts is provided, which is made of, for example, a coarse wire mesh.

A spray nozzle device 3 is arranged above the cleaning bucket 2 in the cleaning chamber 1, and a pipe for delivering a cleaning liquid to the spray nozzle device 3 by a pump 4 described later. One end of 5 is connected.

Further, the bottom of the cleaning chamber 1 is inclined to form a chute portion 6, a gutter 7 is connected to the lower end of the chute portion 6, and the lower end of the gutter 7 receives chips and dust. Wire mesh basket 8 that allows the cleaning solution to pass through while filtering
Is facing.

The basket 8 has finer meshes than that of the cleaning bucket 2 and has an optimum size for filtering the chips, and a cleaning liquid tank 9 for containing the cleaning liquid after filtering the chips. It is provided inside.

[0006] The basket 8 is openable and closable so that the cleaning liquid tank 9 can be taken out from the cleaning liquid tank 9 as needed to open it, and the chips and the like accumulated inside can be discarded.

Further, 10 is a cleaning liquid tank 9 for the cleaning liquid L.
An outlet end is connected to the pump 4 by a pipe for sucking out from the inside, and an inlet end faces a lower portion in the cleaning liquid tank 9.

In the conventional apparatus for cleaning metal-worked parts having such a configuration, metal-worked parts such as bolts which are metal-worked are housed in the cleaning bucket 2 in the cleaning chamber 1.

Then, the cleaning liquid L in the cleaning liquid tank 9 pumped out by the pump 4 is supplied to the spray nozzle device 3 installed above the cleaning chamber 1 through the pipe 10 and the pipe 5.

Therefore, the cleaning liquid L is sprayed downward from the spray nozzle unit 3 at a constant pressure, and the sprayed cleaning liquid L cleans the metalworked parts in the cleaning bucket 2.

That is, the cleaning liquid L flushes the chips attached to the metal-worked part together with dust and the like.

Then, the cleaning liquid L containing the chips flows down through the chute portion 6 and the gutter 7 and falls into the basket 8 made of wire mesh.

For this reason, the chips and dust are accumulated in the basket 8, and the cleaning liquid L passes through the basket 8 and flows down into the cleaning liquid tank 9 to be stored therein.

The cleaning liquid stored in the cleaning liquid tank 9 is again sent by the pump 4 to the spray nozzle device 3 so as to circulate, and is used for cleaning the metal working parts.

On the other hand, when such metal working parts are repeatedly washed, a large amount of chips are accumulated in the basket 8. Therefore, the lid (not shown) of the cleaning liquid tank 9 is periodically opened to open the basket. 8 is taken out of the tank, the basket 8 is opened or turned over to discharge and clean the internal chips, and then set in the washing tank 9 again to be reused.

[0016]

However, since such a conventional cleaning device for machined parts is configured as described above, every time chips and dust accumulate in the basket 8,
It is necessary to open the lid of the cleaning liquid tank 9 and turn the basket 8 upside down to discharge chips and clean the basket 8. These operations are complicated, and the cleaning There was a problem that the work efficiency was significantly reduced.

Further, since the basket 8 is generally located in the cleaning liquid tank 9 which cannot be directly monitored by eyes, if the cleaning is continued while the basket 8 is full of chips and dust, a part ( There is a problem that chips and dust (for example, in the upper layer) overflow out of the cleaning liquid tank 9 and enter the cleaning liquid L in the cleaning liquid tank 9, resulting in deterioration of cleaning liquid quality and incomplete cleaning. .

The present invention has been made in order to solve the above-mentioned conventional problems, and can eliminate the troublesome work such as discharging chips and dust from a basket and cleaning the basket, and An object of the present invention is to provide a cleaning device for machined parts that can reliably prevent chips and dust filtered by cleaning from entering the cleaning liquid.

[0019]

A machined part cleaning apparatus according to the present invention is arranged so as to be inclined so that a cleaning chamber for cleaning a machined part and a cleaning liquid containing chips separated from the machined part are introduced from the lower end. A rotary drum, a chip filtering portion formed by a wire mesh on the rotary drum from a lower end portion thereof to a predetermined area above, and fixed to an inner circumference of the rotary drum from a lower end portion thereof to an upper end opening portion thereof. A spiral delivery blade for delivering the chips so as to push them out of the upper end opening, and a sprocket provided on the outer periphery of the rotating drum,
And a drive device for rotating the rotary drum by meshing with the sprocket, and a cleaning liquid tank is installed at least below the rotary drum in the vicinity of the chip filtering portion.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a cleaning apparatus for a processed part according to the present invention.
Reference numeral 1 denotes a cleaning chamber. Inside the cleaning chamber 11, a wire net basket for accommodating a processed member such as metal and resin similar to that shown in FIG. 7 and a spray nozzle for discharging a cleaning liquid are installed. ing.

Reference numeral 12 is a gutter connected to the lower part of the cleaning chamber 11 through a chute portion (not shown), and the gutter contains chips that flow out through the basket when the processed parts are washed. The washing liquid flows down.

Reference numeral 13 denotes a large-diameter gutter connected to the gutter 12, and an opening end (exit end) of the gutter 13 is loosely fitted to a lower end of a rotary drum 15 which is inclined on the cleaning liquid tank 14. ing.

That is, the lower end of the rotary drum 15 is
It is closed by a closing plate 16 that is larger than the outer diameter of the drum body, and the open end of the gutter 13 projects into the rotary drum 15 through a through hole provided in the center of the closing plate 16 (see FIG. 2 and (See FIG. 3).

Therefore, a minute gap for allowing the rotation of the rotary drum 15 is provided between the through hole and the opening end of the gutter 13.

The rotary drum 15 has a fixed length, and its upper end is opened to form an upper end opening 17 for discharging chips described later.

Further, the rotary drum 15 which is inclined and arranged.
A predetermined region above the lower end of the is a chip filtering part 18 formed by a wire mesh, and here, the chips are separated and filtered from the cleaning liquid.

The mesh of the wire mesh is made finer than the mesh of the wire mesh forming the bucket in the cleaning chamber 11.

On the inner peripheral surface of the rotary drum 15 including the chip filtering portion 18, a spiral delivery blade 19 having a width sufficiently narrower than the radius of the rotary drum 15 is provided over substantially the entire length thereof. It is firmly fixed by welding or the like so as to stand up against the inner peripheral surface.

The spiral delivery blade 19 is the same as the gutter 1 described above.
While the rotating drum 15 is rotating, the chips of the machined parts that have flowed into the lower end of the rotary drum 15 from the three ends are sent toward the upper end opening thereof, and further discharged from the upper end opening,
Functions to drop.

In this case, if the rotary drum 15 is installed so that not the entire rotary drum 15 but the portion including the vicinity of the chip filtering portion 18 faces above the cleaning liquid tank 14. Good.

Reference numeral 20 is a ring-shaped guide plate provided on the outer periphery of the upper portion of the rotary drum 15 (see FIGS. 2 and 3).
A ring-shaped sprocket 21 is attached to the outer periphery of the rotary drum 15 near the guide plate 20.

Further, as shown in FIG. 3, reference numeral 22 is a rotary roller which supports the outer periphery of the closing plate 16 as a guide plate, and the rotary roller 22 is rotated by a mounting shaft 24 fixed to a bracket 23. It is attached freely.

Therefore, the closing plate 16 is rotatably supported by the rotating roller 22.

The bracket 23 is supported by a fixing member such as the cleaning tank 14 and the gutters 12 and 13 via a mounting member (not shown).

Further, 25 is another set of rotating rollers that support the outer periphery of the guide plate 20 (see FIG. 3), and this rotating roller 25 is rotatably attached to a mounting shaft 27 fixed to a bracket 26. It is installed.

Therefore, the guide plate 20 is rotatably supported by the rotating roller 25.

The bracket 26 is supported by a fixed member such as the cleaning liquid tank 14 via a bracket position adjusting member 28 so that the position of the bracket 26 can be adjusted vertically and horizontally.

FIG. 4 is a side view of the rotary drum 15 shown in FIG.
In addition to the rotary roller 25, a drive motor 29 for driving the rotary drum 15 is installed therein.

Then, as shown in FIGS. 5 and 6, the output shaft 31 of the speed reducer 30 which is interlocked with the drive motor 29 has a ring-shaped chain 32 extending along the outer periphery thereof.
Is wound and fixed.

The drive motor 29, the speed reducer 30, and the chain 32 constitute a rotary drive device for the rotary drum 15.

The teeth of the sprocket 21 are meshed with the chain 32, and the teeth of the sprocket 21 ride on a part of the chain 32 when the sprocket 31 rotates, so that the sprocket 21 vibrates up and down to cause the chain to move. The rotation is transmitted from 32.

Therefore, in the machined parts cleaning apparatus having such a structure, the machined parts housed in the bucket in the cleaning chamber 11 are cleaned by the cleaning liquid sprayed from the upper spray nozzle device. The chips adhering to the processed parts are washed away together with dust.

Then, the cleaning liquid containing the chips flows into the gutters 12 and 13 through the chute portion of the cleaning chamber, and the gutter 1
It is dropped from the open end of 3 into the lower part of the rotary drum 15 and is thrown in.

The rotary drum 15 is rotating via a speed reducer 30 driven by the motor 29, a sprocket 21 and a chain 32 that mesh with each other.

At this time, since the sprocket 21 is meshed with the sprocket 31 via the chain, the sprocket 21 rotates vertically while oscillating, and therefore the rotating drum 15 also slowly oscillates vertically. .

Therefore, the vibration prevents the wire mesh of the rotary drum from being clogged with chips.

This rotation is maintained at a constant inclination because the pair of closing plates 16 and the guide plate 20 integral with the rotary drum 15 are rotatably supported by the rotary roller 22 and the rotary roller 25, respectively. While done smoothly.

On the other hand, as described above, the cleaning liquid containing chips is dropped and thrown into the lower part of the rotating rotary drum 15, so that at least the lower part is a chip filtering part such as a wire mesh. Since it is set to 18, only the cleaning liquid passes through this and falls into the cleaning liquid tank 14 where it is stored.

Further, the chips contained in the cleaning liquid will remain on the chip filtering part 18 one after another, but since the rotary drum 15 is rotating, the spiral delivery blade 19 inside the rotary drum 15 is rotated. While rotating, the remaining chips will be pushed up from the bottom to the top by scooping on the plate surface.

Therefore, the chips finally reach the upper end opening 17 of the rotary drum 15, are pushed further upward, and fall out of the rotary drum 15 through the upper end opening 17, and the upper end opening 17 thereof. The chips will be collected by a chip receiver (not shown) or a conveyor arranged below.

Needless to say, the cleaning liquid that has passed through the chip filtering portion 18 is stored in the cleaning liquid tank 14 and then sent again to the spray nozzle device in the cleaning chamber 11 by the pump for reuse.

In the rotary drum 15, the spiral delivery blade 19 is in close contact with the inner circumference of the drum so as not to form a gap, so that chips or dust may be caught in the gap to cause clogging. Therefore, it is possible to prevent the delivery of chips by the blade 19 from being hindered.

Further, since the spiral delivery blades 19 are not separately operated with respect to the rotary drum 15 but are integrally formed, abrasion due to these frictions can be prevented and durability is improved. In addition, the configuration can be simplified, and handling and transportation are easy.

Thus, by continuing the rotation of the rotary drum 15 during the cleaning of the processed parts, the chips and dust can be discharged automatically and efficiently, and the basket for chips is cleaned during this period. This has the advantage of eliminating troublesome operations such as.

Further, the basket does not become full, and there is no problem that surplus chips are mixed in the cleaning liquid in the cleaning tank.

[0056]

As described above, according to the present invention, the rotary drum is arranged so as to be inclined so as to introduce the cleaning liquid containing the chips separated from the processed parts from the lower end portion, and the lower end portion of the rotary drum. From the upper part to the upper part of the rotary drum, the chip filtering part formed by a wire mesh is fixed to the inner periphery of the rotary drum from the lower end to the upper end of the rotary drum, and the chips are pushed out of the upper end opening. Since the cleaning liquid tank is installed at least below the rotary drum in the vicinity of the above-mentioned chip filtration part, it discharges chips and dust from the basket and cleans the basket. It is possible to eliminate the need for troublesome work such as, and to prevent chips and dust that have been filtered by cleaning from mixing in the cleaning liquid, which can sufficiently improve cleaning efficiency and cleaning degree. There is an effect.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a cleaning device for a processed part according to an embodiment of the present invention.

2 is a plan view showing a rotary drum in FIG. 1. FIG.

FIG. 3 is a front view of the rotary drum shown in FIG.

FIG. 4 is a side view showing the rotary drum shown in FIG. 3 as viewed obliquely from above.

5 is a front view of the rotary drum shown in FIG. 4. FIG.

FIG. 6 is a partially enlarged side view showing a meshed state of a sprocket and a chain.

FIG. 7 is a configuration diagram showing a conventional metal-working component cleaning apparatus.

[Explanation of symbols]

 11 Cleaning Chamber 12, 13 Gutter 14 Cleaning Liquid Tank 15 Rotating Drum 17 Top Opening 18 Chip Filtration Part 19 Spiral Delivery Blade 31 Sprocket 32 Chain

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Ikuo Fukuda 2-4-1, Hamamatsucho, Minato-ku, Tokyo World Trade Center Building Kayaba Industry Co., Ltd. (72) Inventor Fukuji Nakata 23 Iidamachi, Hamamatsu City, Shizuoka Prefecture

Claims (1)

[Claims] 1. A cleaning chamber for cleaning a processed component housed therein with a cleaning liquid, and a rotary drum inclined so that the cleaning liquid containing chips separated from the processed component by the cleaning is introduced from a lower end portion. A chip filtering part formed by a wire mesh on the rotary drum from a lower end of the rotary drum to a predetermined area above, and the chip fixed to an inner circumference of the rotary drum from a lower end of the rotary drum to an upper end opening thereof. A spiral delivery blade for delivering the sprocket to the outside of the upper end opening, a sprocket provided on the outer periphery of the rotating drum, a drive device that meshes with the sprocket and rotationally drives the rotating drum, and at least the chip filtration. And a cleaning liquid tank installed below the rotating drum near the section.