JPS6018471B2 - cleaning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus suitable for cleaning articles that are plate-like and have a higher specific gravity than liquids, such as resin.

When cleaning a workpiece that has undergone processing such as cutting or grinding, several cleaning liquid tanks are lined up, and the liquid tanks are gradually moved while cleaning the workpiece, and cleaning is completed in the final liquid tank. At that time, in order to avoid scratches on the workpieces, the workpieces are attached to the cleaning dragon so that they do not touch each other, and then cleaning is performed. However, it is extremely troublesome to attach each workpiece to the cleaning dragon one by one, and it is also a time-consuming task to move the cleaning dragon from one liquid tank to another.
In addition, cleaning dragons have disadvantages such as not draining the liquid easily and contaminating the next liquid tank, and leaving the part of the tool that attaches the workpiece unwashed. Also, in order to eliminate the process of transferring the cleaning dragon, it is possible to pump out the contaminated cleaning fluid from the liquid tank, clean it through a filter, and then return it to the liquid tank, but this is not suitable for continuous cleaning of a large number of workpieces. It's inconvenient.

An object of the present invention is to eliminate the trouble of attaching a workpiece to a cleaning dragon and to continuously clean the workpiece. Therefore, a passage filled with cleaning liquid is provided between the loading port and the loading port for the processed articles, and a number of holes are arranged on the bottom wall of the passage to spray the cleaning liquid, so that the cleaning liquid is directed from the loading port to the loading port. A structure is adopted in which the articles are floated from the bottom wall and washed in the process of being conveyed by, for example, creating a flow by making the jet holes more complicated or by providing a discharge path or an outflow path for the cleaning liquid. Examples will be described according to the drawings.

FIG. 1 is a sectional view of the embodiment. In the figure, W is a workpiece such as a lens that has been ground, 1 is a bonito in a liquid tank, and 2 is an entrance for carrying in the workpiece. 3 is a passageway through which the workpiece is transported; 4
is the export exit.

Reference numeral 5 denotes a bottom plate, and the bottom plate 5 has a large number of jet holes 5a, 5b, 6c, . . . each having a diameter of about one rib.

FIG. 2 shows the appearance of the AA cross section. At this time, the exit holes are inclined toward the exit, so these holes 5a, 5b,
The liquid ejected from ... floats the workpiece and forms a transport flow from the carry-in port to the carry-out port direction. In addition,
In the area that corresponds to the bottom of the entrance, the jetting holes should be closely spaced to prevent workpieces dropped from above from colliding with the bottom, or the gap between the liquid level and the bottom should be large. Reference numeral 6 denotes a liquid retention chamber located between the bottom plate 5 and the lower wall of the liquid tank.

Pipes 7 and 7' supply liquid pressurized by a fluid pump 17 to the base liquid chamber 6. Reference numeral 8 denotes a ceiling plate, which has a large number of blow holes 8a, 8b, etc., and has the function of sucking up the workpiece W by discharging liquid from the passage 3.

By providing this suction hole, the ejection holes 5a, 5b...
The workpiece can also be levitated by reducing the pressure applied to the surface. 9
is a second liquid retention chamber, which is formed between the ceiling plate 8 and the upper wall of the liquid tank.

10 is a 9E liquid pipe for discharging the liquid from the second liquid retention chamber.

In addition, a bottom plate 11 is provided at the bottom of the outlet 4,
The bottom plate 11 has a large number of discharge ports 11a.

Reference numeral 12 denotes a third liquid retention chamber, which is isolated from the first total liquid chamber 6. A pipe 13 is connected to this third liquid retention chamber 12 to draw the liquid in the liquid tank, so the discharge port 11a
．． The liquid flows through the passageway, forming a conveying flow in which the liquid flows toward the outlet. Also, the bottom plate 1
If a net (not shown) is sunk in the area 1, the workpieces collected in this area can be scooped up one by one. Reference numeral 14 denotes a throttle valve that can adjust the amount of liquid flowing through the pipe 13 and is useful for adjusting the speed of the conveying flow.

The pipe 15 is a pipe in which the pine 10 and the pipe 13 are connected, and a filtering device 16 for filtering out contaminated liquid is provided in the middle of the pipe. Therefore, the pump 17 can always supply clean liquid to the first liquid retention chamber 6. To explain the operation of the above-mentioned device, first, the liquid tank 1 is filled with a predetermined cleaning liquid, the pump 17 is driven, and then the workpiece that has been processed is loaded from the loading port 2. , 5b .

In addition, in the flow path, suction holes 8a, 8b...
The suction flow from serves to levitate the workpiece W,
The discharge stream from the discharge roll la has the function of transporting the workpiece.
Since the workpiece W transported through the passage 3 is constantly sprayed with clean liquid, the workpiece is cleaned when it is transported to the outlet 4.

Reference numeral 18 in FIG. 3 is an ultrasonic generator, which generates ultrasonic waves by electrically vibrating a titanium samba IJum, for example, and if it is attached to the wall of the tank in the passage 3 in FIG. As a result of ultrasonic vibration of the cleaning liquid, cleaning is promoted.

FIG. 4 shows a modification of the embodiment shown in FIG.

Components numbered the same as in FIG. 1 indicate the same parts. Reference numeral 25 denotes a bottom plate, which is equipped with jet holes 25a, 25b, . . . equipped with nozzles 26, 26', .
5a, 25b, . . . face upward, and therefore do not form a conveying flow.

Therefore, a conveying flow is formed between the inflow pipe 27 and the discharge pipe 13. However, if the distance between the carry-in port and the carry-out port is short, the pipe 27 may not be provided. That is, in this example, an outlet for forming a conveying flow is provided separately. Also, in Fig. 4, a nozzle protruding from the bottom plate surface is provided instead of an orifice, so
As a result of being able to increase the pressure for pushing up the workpiece, it is no longer necessary to provide the suction holes 8a shown in FIG. FIGS. 5 and 6 are diagrams showing the function of the ejection holes.

FIG. 5 shows an orifice like the jet hole in FIG. 1, and FIG. 6 shows a nozzle. When liquid a with the same pressure is applied to both, in Fig. 5, a vortex is formed to involve the flow b near the bottom and the liquid layer that has a viscous action because it is in contact with the bottom, consuming energy. The pressure of the injected liquid c becomes smaller. On the other hand, the sheath protruding from the bottom as shown in Fig. 6 can extremely reduce such energy loss, and the injection flow c sufficiently preserves the initial pressure, allowing the workpiece W to be effectively Can be floated.
In the above-mentioned figure 4, the nozzle is oriented vertically and only the pressure to float the workpiece is supplied, but if the nozzle is tilted from the inlet to the outlet, the injection flow from the nozzle can be A carrier flow can also be formed.

However, it takes a lot of effort to install countless minute nozzles on the bottom plate.

FIG. 7 shows an example in which the nozzle is installed vertically and the ejected liquid is flowed in an oblique direction.

In the figure, 26, 26', . . . are nozzles that eject liquid, and 27, 27', . . . are movable vanes. The movable blades 27 are attached to, for example, the side wall of the tank in a structure that allows the angle to be freely changed. If the blades are tilted from the inlet to the outlet, the vertically ejected liquid will be transmitted through the blades and flow in an oblique direction, making it possible to push up the workpiece and transport it toward the outlet. . An advantage of providing movable blades is that the angle of the blade can be changed depending on the location in the passage, so the conveyance speed of the workpiece can be changed freely, allowing for layout flexibility.

For example, in the case of a small lens, there is a need for it to pass through the passage and rapidly collide with the bottom plate below the exit, so the blades near the exit can be set vertically to reduce the speed. . According to the present invention described above, it is possible to wash articles without having to attach each contaminated article vertically for cleaning or providing means for transporting a cleaning hammer.

In addition, if the loading port and loading port are separated by a large distance and the loading port is located far away from the processing machine, the cleaned items will not be contaminated by dust in the air. By separating the processing chambers and placing the inlet and outlet in separate chambers, it is possible to prevent dust from getting on the product after washing and during transportation.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a sectional view taken along the line AA in FIG. 1. FIG. 3 is a plan view showing a partially modified example of the embodiment shown in FIG. FIG. 4 is a sectional view showing another embodiment. FIGS. 5 and 6 are cross-sectional views for explaining the function of the ejection holes, respectively. 7th
The figure is a perspective view of a main part of another embodiment. In the figure, W is a workpiece, 5 is a bottom plate, 5a, 5b, 5c... are jet ports, 2
6 and 26' are nozzles, and 27 and 27' are movable blades. Younger brother's figure 2 figure 3 illustration 4 younger brother's figure 5 grandchild's figure 6 office work figure

Claims (1)

[Scope of Claims] 1. A passageway having an inlet for carrying in a workpiece on one side and an outlet on the other side, a bottom plate with a plurality of blowholes on the lower side of the passageway, and a plurality of blowholes on the upper side of the passageway. A ceiling plate using a recessed hole, and a passageway in the upper part of the ceiling plate is connected to a passageway in the lower part of the bottom plate, a cleaning liquid is spouted from the lower part of the bottom plate, and the workpiece is transported from the loading port by the cleaning liquid. Cleaning characterized in that the cleaning liquid is conveyed toward the outlet and further circulated from the blowing hole to the blowing hole through the blowing hole via the passage, and a filter is provided in the circulation path. Device. 2. The cleaning device according to claim 1, wherein in the cleaning liquid, the jetting holes in the bottom plate are arranged from a dense state to a sparse state from an inlet to an outlet of the passage. 3. The cleaning device according to claim 1 or 2, wherein a movable blade is provided in the vicinity of the jet hole of the bottom plate.