JPH09234438A - Washer and washing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously perform treatment for automatically removing the soiling a sticking to a machined part. SOLUTION: Washing liquid is stored in a conical vessel in whose inner peripheral wall part a spiral track 3 is formed. While torsion vibration force is given and a material to be washed is immersed in the washing liquid and is transferred on the track 3 by vibration, the soiling sticking to it is removed by the washing liquid and is discharged from the discharge end of the track 3 to the outside. The jetting port of a nozzle 9 whose other end is connected to a clean gas supply source 11 is made adjacent to the track positioned above the level of the washing liquid in a conical vessel 2, and clean gas is jetted to the material to be washed transferred on the track to wash it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for cleaning and drying machined products and the like, and a cleaning system for efficient cleaning.

[0002]

2. Description of the Related Art Machined products such as bolts and nuts are
The chips, dust, dust or cutting oil used for processing adheres from the cutting process, but these adhered substances must be washed and removed to make a finished product. For this reason, workers have manually washed and removed these machined products by immersing them in machine oil. However, not only the removal of chips, cutting oil, and the like by such manual work is incomplete, but also cleaning is troublesome and time-consuming, and the workability is deteriorated.

On the other hand, when a machined product has a small diameter hole and the like and the dirt in the hole cannot be completely removed by hand, the machined product is put into a cleaning basket, and this cleaning basket is put into a cleaning device. I was cleaning. However, when cleaning with a cleaning machine using a cleaning basket, it is necessary to put the machined product into the cleaning basket and discharge it from the cleaning basket. ing. Therefore, workability is poor,
Many workers are needed. Further, when cutting oil or the like adheres to the surface of a thin plate component such as a washer, the components are intimately contacted with each other and are not separated from each other, and the contacted surfaces cannot be cleaned. For this reason, a means for rotating the cleaning basket is required, and the structure is complicated.

In order to solve such poor workability, a cleaning device for automatically cleaning chips of machined products such as nuts after cutting and supplying them to the next step is disclosed in Japanese Patent Laid-Open No. 6-1.
It is proposed in Japanese Patent Publication No. 98257. This cleaning device
Form a spiral track on the inner and outer walls of the bowl,
The cleaning liquid is stored in the bowl, the torsional vibration force is applied, and while the machined product immersed in the cleaning liquid is transferred on the track by vibration, chips and cutting oil are removed by the cleaning liquid, and the discharge end of the track is connected to the outside. To be discharged to. In addition, the cleaning liquid circulated through the piping and filter by the pump is sprayed from the nozzle to the machined product near the discharge end of the truck.
It has a structure that removes the chips adhering to the machined product.

[0005]

However, in the above-mentioned conventional cleaning device, chips and the like adhering to the machined product are removed in the initial stage of operation and the machined product is discharged to the outside, but the cleaning device is continuously operated. During operation, the cleaning liquid circulates and the chips accumulate on the filter, causing the filter to become clogged.This prevents the cleaning liquid from being sprayed from the nozzle onto the machined product It becomes impossible to remove the chips and the like adhering to the product. In addition, there is a high risk that the pump will be shut off and the pump will burn. For this reason, it is necessary to frequently clean and replace the filter. However, since the worker manually performs this cleaning and replacement, the human cost cannot be reduced as a result.

Further, in the conventional cleaning apparatus, since only the cleaning of the machined product is automated, it is necessary to separately dry the cleaning liquid adhering to the machined product in the next step. In addition, there is a problem that complex stains containing a plurality of components that cannot be removed by one type of cleaning liquid cannot be removed.

The present invention has been made in consideration of such conventional problems, and it is possible to automatically and surely remove chips, cutting oil and the like from an object to be cleaned after machining. It is an object of the present invention to provide a cleaning device that can perform the drying of the object to be cleaned automatically and can improve the human cost and the working environment.
Another object of the present invention is to provide a cleaning system capable of coping with a multi-stage cleaning process by organically connecting the cleaning devices.

[0008]

In order to achieve the above object, the present invention stores a cleaning liquid in a mortar-shaped container having a spiral track formed on the inner peripheral wall thereof, imparts a torsional vibration force, and immerses the cleaning liquid in the cleaning liquid. In a cleaning device that removes adhered dirt with a cleaning liquid while transferring the cleaned object on the track by vibration and discharges it from the discharge end of the track to the outside, the other end was connected to a clean gas supply source. It is characterized in that the jet outlet of the nozzle is brought close to a track located above the cleaning liquid level of the mortar-shaped container, and clean gas is jetted to the object to be cleaned transferred on the track.

In this case, on the inner peripheral wall portion of the mortar-shaped container below the cleaning liquid level, the height of the transfer posture of the object to be cleaned transferred from the transfer surface of the track is 1 time or more and 2 times the height dimension. By providing the protrusions at a height of less than, it is possible to prevent the objects to be cleaned from being transferred in an overlapping state.

Further, the above-mentioned track has a two-tiered structure,
The upper part is the transfer surface of the cleaning object, the lower part is the transfer surface of chips smaller than the cleaning object, and the cleaning liquid connected by piping to the opening provided in a part of the lower track at the cleaning liquid level The storage tank is installed below the cleaning liquid level, and the suction port of this tank is connected to the connection port provided at the bottom of the mortar-shaped container through a pump and a filter by piping to connect the cleaning liquid to the mortar-shaped container. It may be able to circulate to and from the tank.

Since the present invention is configured as described above, the object to be cleaned placed in the mortar-shaped container containing the cleaning solution is gradually moved upward in the spiral track by the torsional vibration force. Contamination adhering to the object to be cleaned is removed by the vibration force during this transfer. Further, the object to be cleaned is transported on the track, and when it passes near the nozzle provided above the cleaning liquid level, clean gas is blown from the nozzle to blow away the cleaning liquid adhering to the object to be cleaned, Promotes the drying of the wash. Therefore,
Even if dirt adheres to the object to be cleaned, it can be reliably removed here, and is discharged outside from the discharge end of the truck in a clean state.

When the object to be cleaned is a thin plate part such as a washer, the objects to be cleaned are put into the cleaning device in a state of being in close contact with each other. Also, when passing underneath a protrusion provided on the inner peripheral wall below, two or more closely adhered objects to be cleaned are caught by the protrusion, and a torsional vibration force is applied to the objects to be cleaned in a mortar-shaped container. Fall inside. Then, due to the impact of this drop, the adhered object to be cleaned can be separated.

On the other hand, when the object to be cleaned is a machined product such as a nut to which chips are mainly adhered, the chips removed from the object to be cleaned by the torsional vibration force are spiral tracks having a two-tier structure. Drop to the bottom of the mortar-shaped container or to the bottom of the mortar-shaped container, but gradually move upward in the lower tier of the truck due to the torsional vibration force, and fall into the tank with the cleaning liquid from the opening provided in part of the lower-tiered track of the mortar-shaped container To do. This metal shavings accumulate at the bottom of the tank,
The frequency of filter clogging due to chips etc. is drastically reduced.

The cleaning liquid dropped into the tank is pumped by a pump and filtered by a filter, whereby a clean cleaning liquid is introduced from a connection port provided in the lower portion of the mortar-shaped container, and the cleaning liquid in the mortar-shaped container is always kept. It is kept clean.

In the cleaning system of the present invention, a plurality of cleaning devices as described above are connected, and the object to be cleaned discharged from the discharge end of the truck of each cleaning device is put into the mortar-shaped container of the cleaning device of the next step. Is characterized by.

In such a cleaning system, in each cleaning device, the object to be cleaned is cleaned or rinsed while being transported on the track, and when passing through the vicinity of the nozzle provided above the cleaning liquid level, A clean gas is blown and the cleaning liquid adhering to the object to be cleaned is blown off. Then, the object to be cleaned is loaded into the cleaning device of the next process from the discharge end of the truck. In this way, the object to be cleaned is cleaned or rinsed by each cleaning device, and then discharged from the truck discharge end of the final cleaning device and supplied to the next step, for example, an assembly device.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) FIG. 1 is an overall sectional view of the present invention, FIG. 2 is a plan view of the mortar-shaped container, and FIG. 3 is a perspective view of a truck. An inner peripheral portion 2a of a substantially mortar-shaped container 2 (hereinafter referred to as a bowl) is formed in a spiral shape,
As shown in FIG. 2 and FIG. 3, two (three or more) parallel strip-shaped members 3a are provided over substantially the entire length of the inner peripheral portion 2a (bottom surface), so that the circumferential portion 2a (bottom surface) is strip-shaped member 3
The upper surface of a also serves as the lower track of the track 3 forming a two-tier structure.

The parallel strip members 3a have a space 3h. In addition, a plurality of cutouts 3 are formed in the lower portion of the strip member 3a.
The chip P has c to allow the chips P to flow out, and the large amount of chips P or the like does not block the interval 3h. A linear external lead-out track 12 for supplying a work W (for example, a nut) to the next process is connected to the discharge end 3b of the track 3. The cleaning liquid L is stored in the bowl 2 and is fixed to the vibration device 1 that generates a torsional vibration force.

Although not shown in the drawings, the vibrating device 1 is a bowl 2
Is composed of a movable core that fixes the bottom wall portion of the above, a base block that is connected to the movable core by a leaf spring that is inclined and equiangularly spaced, and an electromagnet around which a coil is wound. The electromagnet is fixed to the base block with a gap between the electromagnet and the movable core. Such a vibration device 1
Is entirely covered with a tubular cover, and is supported on the floor by the vibration-proof rubber 14.

The cleaning liquid level H on the inner peripheral wall 2a of the bowl 2 is provided with an opening 4, which is installed below the cleaning liquid level H and is provided on the right side of the tank 5 which is divided into two parts by a partition plate 5c. It is connected to the connected connection port 5a by piping. The suction port 5b provided above the left bottom portion of the tank 5 is connected via a pump 6 and a filter 7 to a connection port 8 provided at a lower portion of the bowl 2 by a pipe, whereby the cleaning liquid L is added to the bowl. 2 and tank 5
It can be cycled between and.

Reference numeral 9 is a nozzle, and the ejection port of the nozzle is the bowl 2.
It faces the part of the truck 3 above the cleaning liquid level H in FIG. The other end of this nozzle 9 is connected to a compressed air source 11, and clean compressed air is jetted to the work W passing therethrough.

In FIG. 2, reference numeral 10 is a disk for preventing the cleaning liquid L and the chips P attached to the work W from being blown off by the compressed air from the cleaning device to the outside. Shaped lid, which is fixed to the uppermost end of the bowl 2. An opening 10a for inserting the work W into the bowl 2 is provided at the center of the lid 10.

In the cleaning device constructed as described above,
The work W to which chips and cutting oil are attached is provided with the opening 1 of the lid 10.
The cleaning liquid L is put into the bowl 2 from 0a. The work W put in the bowl 2 is gradually transferred upward on the spiral track 3 by the torsional vibration force generated by the vibration device 1 and transmitted to the bowl 2. At this time, the chips and cutting oil adhering to the work W are removed by the cleaning force of the cleaning liquid L and the vibration force generated in the work W.
Further, when the work W is transferred on the track 3 and passes near the nozzle 9 provided above the cleaning liquid level H, clean compressed air is blown from the nozzle 9 and thus adheres to the work W. The cleaning liquid L is blown off. Therefore, the drying of the work W can be promoted. Further, even if chips are attached to the work W, they can be reliably removed here, and thus a clean state can be obtained. The removed chips are supplied to the outside from an external lead-out track 12 provided at the discharge end 3b of the track 3.

The chips P removed from the object to be cleaned W fall to the inner peripheral wall 2a of the bowl 2 which also serves as the lower track or to the bottom of the bowl, but are gradually transferred upward through the inner peripheral wall 2a by the torsional vibration force. The cleaning liquid L drops to the right side of the tank 5 through an opening 4 provided in a part of the peripheral wall 2a. Metal chips, etc. are accumulated on the right bottom of the tank 5,
The cleaning liquid L overflowing from the partition plate 5c flows into the left side of the tank 5, is sucked from the suction port 5b of the tank 5, is filtered by the filter 7, and the clean cleaning liquid L is in the bowl 2
It is input from a connection port 8 provided in the lower part of the. As a result, the cleaning liquid L in the bowl 2 can always be kept in a clean state.

In the cleaning apparatus of this embodiment as described above, cleaning and drying can be automatically performed, and the chips and cutting oil of the machined workpiece W can be removed without any human intervention. can do.

(Second Embodiment) FIG. 4 is a plan view of the bowl 2 in the second embodiment, and FIG. 5 is a sectional view thereof. The same parts as those in the first embodiment are designated by the same reference numerals and correspond to each other. Therefore, redundant description will be omitted. In this embodiment, the washer is cleaned, and the inner peripheral wall portion of the bowl 2 below the cleaning level H has a thickness t of the washer X which is 1 time or more and less than 2 times the transport surface of the truck 3. Height g
The scrubber 13 is provided in the. The scrubber 13 is inclined and protrudes slightly inward of the spiral track 3.

In the bowl 2, a cleaning liquid L prepared by diluting an aqueous cleaning agent, trade name "EE-1130" (manufactured by Olympus Optical Co., Ltd.) with pure water by about 20 times is stored.
Furthermore, the nozzle 9 provided near a part of the truck 3 above the cleaning liquid level H of the bowl 2 is connected to the warm air generator 11a at the other end, and the washer X passing therethrough has clean warm air. Gush out.

In the cleaning device constructed as described above,
The washer X with the cutting oil attached is put into the bowl 2 in which the cleaning liquid L is stored from the opening 10a of the lid 10. Bowl 2
The washer X thrown in is gradually transferred upward on the spiral track 3 by the torsional vibration force.
At this time, the cutting oil and the like adhering to the washer X are removed by the cleaning force of the cleaning liquid L and the vibration force generated in the washer X.

On the other hand, when the washers X are in close contact with each other, the cutting oil attached to the close contact surface of the washer X remains without being removed. This tight washer X
Are further transferred on the track 3 and cannot pass under the scrubber 13 provided below the cleaning liquid level H, but are transferred in the central direction along the scrubber 13 and transferred to the track 3
More fall. Then, the washer X in the close contact state is separated by the impact force when it is dropped, is again transported on the track 3, and this time passes under the scrubber 13.

When passing near the nozzle 9 provided above the cleaning liquid level H, hot air (about 80 ° C.) having a flow rate of about 1 m / sec is blown from the nozzle 9. The cleaning liquid L attached to the washer X by this spraying
Is blown off and the washer X is heated to accelerate the drying of the washer X. Then, the completely dried washer X is discharged from the external lead-out truck 12 provided at the discharge end 3b of the truck 3.

The above-described embodiment is particularly effective for cleaning and drying objects to be cleaned such as thin plate parts such as washers that are easily adhered to each other, and cleaning and drying can be performed automatically. Together with no human intervention,
The chips and cutting oil of the work W after machining can be removed.

(Embodiment 3) FIG. 6 is a plan view of an embodiment of a cleaning system, and FIG. 7 is a front view thereof. In FIG. 6, reference numeral 101 denotes a first cleaning device, and the bowl 2 and the tank 5 thereof have a cleaning liquid L1 in which pure water is used as a cleaning liquid L1 under the trade name “EE-1120” (manufactured by Olympus Optical Co., Ltd.) The cleaning liquid L1 diluted 10 times is stored. Discharge end 3b of the truck 3 of the first cleaning device 101
The external lead-out track 12a connected to is inclined downward by about 5 °, and its discharge end extends right above the opening 10a of the lid of the bowl 2 of the second cleaning device 102.

In the bowl 2 and the tank 5 of the second cleaning device 102, the product name "EE-113" which is an aqueous cleaning agent is used.
0 ”(manufactured by Olympus Optical Co., Ltd.) is stored as the cleaning liquid L2. The external lead-out track 12b of the second cleaning device 102 is also inclined downward by about 5 °, and its discharge end is the opening 10 of the lid of the bowl 2 of the third cleaning device 103.
It extends just above a.

Pure water is stored in the bowl 2 and the tank 5 of the third cleaning device 103 as the rinse water L3.
The external lead-out track 12c of the third cleaning device 103 is also inclined downward by about 5 °, and its discharge end extends to just above the input port of the automatic assembly machine (not shown).

Although not shown, the tanks 5 of the first to third cleaning devices 101 to 103 are provided with electric heaters to heat the cleaning liquids L1 to L3 to about 40 ° C.
The nozzles 9 of the first and second cleaning devices 101 and 102 are connected to the compressed air supply source 11,
The nozzle 9 of the cleaning device 103 is connected to the hot air generator 11a.

In such a structure, after cutting and polishing, the metal parts Y such as chips, cutting oil and abrasives discharged onto the discharge chute from the automatic metal working machine adhere to the chute. Sliding down, first cleaning device 1
01 is put into the bowl 2 through the opening 10a of the lid.

The metal part Y is gradually transferred upward in the spiral track 3 of the bowl 2 of the first cleaning device 101 by the torsional vibration force. At this time, the cleaning liquid L1
The cleaning force and the vibration force of (EE-1120) remove the chips and abrasives adhering to the metal part Y.

Further, when the metal part Y is transferred on the track 3 and passes near the nozzle 9 provided above the cleaning liquid level H, clean compressed air (pressure: 1.5 to 2 kg / cm ² ), and the cleaning liquid L1 attached to the metal part Y is drained. As a result, even if chips and the like adhere to the metal part Y,
It can be reliably removed here. The metal part Y is transferred onto the external lead-out track 12a provided at the discharge end 3b of the truck 3, slides down on the external lead-out track 12a, and is put into the bowl 2 through the opening 10a of the lid of the second cleaning device 102. To be done.

In the second cleaning device 102 as well, the metal part Y is transferred on the truck 3 like the first cleaning device 101, and the cutting oil is supplied by the cleaning force and the vibration force of the cleaning liquid L2 (EE-1130). Are removed, and clean air (pressure: 1.5 to ² kg / cm ² ) is blown from the nozzle 9 to drain the liquid. Then, the metal component Y is transferred to the external lead-out truck 12b, and the external lead-out truck 12b.
Slide down on b, opening 1 of the lid of the third cleaning device 103
It is put into the bowl 2 from 0a.

In this third cleaning device, the metal part Y
While being transferred on the truck 3, it is rinsed with rinse water L3 (pure water), and clean warm air (about 8
It is dried by spraying at 0 ° C. and a flow rate of about 1 m / sec. Then, the metal part Y is transferred to the external lead-out truck 12c, slides down on the external lead-out truck 12c, and is put into the automatic assembly machine in the next step.

In such a cleaning system, it is possible to surely remove complex stains that cannot be completely removed by one type of cleaning liquid.

[0042]

In the cleaning apparatus of the present invention, chips and the like are accumulated in the tank in the process of circulating the cleaning liquid between the mortar-shaped container and the tank. Therefore, the filter can be prevented from being clogged, and the frequency of cleaning and filter replacement by an operator can be reduced. Also, clean gas is blown on the truck above the cleaning liquid level to dry the machined product. Therefore, the labor of drying in the next process can be reduced.

In the cleaning system of the present invention, a plurality of cleaning devices are provided side by side, and the object to be cleaned discharged from the discharge end of the truck of each cleaning device is automatically fed to each cleaning device in the next process. Since the cleaning liquids having different functions are used in the respective cleaning devices, even if the composite dirt is attached to the object to be cleaned, the cleaning liquid can be completely removed without manual operation, and the cleaning efficiency is improved.

[Brief description of drawings]

FIG. 1 is an overall sectional view of a first embodiment.

FIG. 2 is a plan view of the bowl according to the first embodiment.

FIG. 3 is a perspective view of a truck.

FIG. 4 is a perspective view of a bowl according to the second embodiment.

FIG. 5 is a cross-sectional view of the bowl according to the second embodiment.

FIG. 6 is a plan view of the cleaning system.

FIG. 7 is a front view of the cleaning system.

[Explanation of symbols]

 2 bowls 3 trucks

Claims (4)

[Claims] 1. A cleaning liquid is stored in a mortar-shaped container having a spiral track formed on an inner peripheral wall thereof, and a torsional vibration force is applied to the cleaning liquid so that the cleaning object immersed in the cleaning liquid is transferred by vibration on the track. In a cleaning device that removes adhered dirt with a cleaning liquid and discharges it from the discharge end of the truck to the outside, the jet end of the nozzle connected to the clean gas supply source at the other end is above the cleaning liquid level of the mortar-shaped container. A cleaning apparatus, which is located close to a truck located at, and ejects a clean gas onto the cleaning target transported on the truck. 2. An opening is provided in a part of the mortar-shaped container at the cleaning liquid level, and a cleaning liquid storage tank connected to this opening by a pipe is installed below the cleaning liquid level and provided in this storage tank. The cleaning apparatus according to claim 1, wherein the suction port is connected to a mortar-shaped container via a pump and a filter, and a cleaning liquid is circulated between the mortar-shaped container and the tank. 3. A plurality of cleaning devices according to claim 1 or 2 are connected, and an object to be cleaned discharged from a discharge end of a truck of each cleaning device is put into a mortar-shaped container of a cleaning device in the next step. And a cleaning system. 4. The cleaning system according to claim 3, wherein different cleaning liquids are stored in the mortar-shaped container and the liquid storage tank of each cleaning device, and each cleaning device performs cleaning according to the cleaning process. .