JPH02131179A - Wet multi-tank automatic cleaning device - Google Patents

Abstract

PURPOSE:To reduce the volume of liquid fed from a cleaning tank by providing a mechanism of either putting up a cleaned material slightly or stopping the same on the cleaning tank for a sufficient time in addition to a mechanism of transferring the material to be cleaned to the cleaning tank of a multi-tank automatic cleaning device. CONSTITUTION:A material to be cleaned is transferred laterally 4 from a front tank 3 and put down 5. Droplets are fallen freely by the putting-up operation 7 slightly after cleaning 6 or the operation 9 to stop for the given time sufficient for dropping droplets, and then the material is transferred to a following tank 11 by transferring laterally 10. As sufficient dropping down is carried out by said process, the volume of liquid to be fed is reduced to a large extent to make maintenance period longer, reduce the mixture of liquid to the following tank and enhance cleaning effect. An example shows the volume of liquid required for the material to be cleaned was reduced by approximately 40% by the combination of said speed of putting up the material and stopping time of the material.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a multi-tank automatic washing machine having a washing system including at least two wet washing tanks, in which an object to be washed and a washing basket (hereinafter referred to as The present invention relates to a wet multi-tank automatic washing machine having an automatic conveyance mechanism for the workpieces (both of which are collectively referred to as workpieces).

(Prior Art) For precision cleaning of plastic lenses and silicone lenses, wet cleaning is performed using 10 to 18 tanks. Most of the workpieces in these apparatuses K are transported between tanks by automatic transport machines.

In fact, workpieces are transferred between tanks using a system as shown in FIG. That is, the workpieces are transported in the following order: a: lateral movement of the workpiece 4 b: lowering of the workpiece 5 C: cleaning of the workpiece 6 d: lifting of the workpiece 8 e: lateral movement of the workpiece 10.

(Problems to be Solved by the Invention) When using the automatic workpiece transport system in a conventional wet multi-tank cleaning machine, the amount of cleaning liquid carried out by the workpieces is large;
Liquid contamination occurs in the next tank.

In the case of a multi-tank cleaning machine, for example, as shown in Table 1, all the tanks do not use the same cleaning liquid, but different types of cleaning liquid, so contamination with liquid from other tanks will cause contamination of the cypress.

Therefore, this leads to a decrease in the cleaning effect.

When the amount of liquid mixed into other tanks increases, the liquid exchange cleaning tank must be cleaned. Maintenance needs to be performed at shorter intervals as the amount of liquid removed from the workpiece increases.

Furthermore, performing maintenance frequently increases costs because a large amount of cleaning liquid must be replaced, and in addition, the apparatus must be stopped, which is very uneconomical.

Table 1 Cleaning System (Means for Solving Problems) As shown in FIG. 1, for example, the present invention is a wet multi-tank automatic cleaning machine in which a workpiece is slowly pulled up from the surface of a cleaning liquid 2 in a cleaning tank 1. By operation 7, a mechanism is used to remove as much of the liquid droplets adhering to the workpiece by utilizing the surface tension of the liquid surface, or by operation 9iC, which stops the workpiece on the tank for a certain period of time sufficient to drain the liquid. A wet multi-tank automatic with an automatic conveyance mechanism, characterized by having a mechanism that collects small droplets attached to the workpiece surface below the workpiece, allows them to fall freely as large droplets, and drains the liquid, or both mechanisms. Provide washing machines.

In the present invention, "multi-tank" refers to having two or more cypress trees.

In order to slowly pull up the workpiece in the automatic transport, it is desirable to use a variable resistor externally attached to the operation panel and adjust the speed appropriately to remove the liquid. For example,
It is preferable that the pulling rate can be selected from about 10 to 501 g/see depending on the cleaning effect and takt time.

A timer is installed as a mechanism to stop the workpiece on the hinoki wood for a certain period of time in order to drain the liquid sufficiently.
It is desirable to be able to set it within seconds.

In order to reduce the amount of liquid taken out of the workpiece, it is preferable to use at least one of the above two mechanisms, preferably both.

(Function) By combining two mechanisms: the conventional work transport mechanism k, slow lifting, and tank top stop, cleaning liquid adhering to the work is drained.

(Example) Plastics were washed using a 12-tank automatic washing machine as shown in Table 1. This device is equipped with a volume for setting the workpiece lifting speed and a timer for stopping above the tank, and the lifting speed is 10 to 80 By7.
' Can be set with aec.

FIG. 3 shows the amount of liquid taken out when the pulling rate was varied from 10 to 801 I@/BeC. Next, FIG. 4 shows the relationship between the stop time on the tank and the amount of liquid taken out. As can be seen from these figures, by changing the pulling speed from the conventional 801a/sec to 15H/Bec and from the cylindrical stop time Osee to 30 sec, the amount of liquid taken out of the workpiece can be reduced. It was about 65% and about 60% of that by the conventional method, and by combining these two mechanisms, it was possible to suppress the amount of liquid taken out to about 40%.

A detailed explanation of the figure is given below.

FIG. 1 shows the flow of workpiece conveyance according to the present invention, and FIG. 2 shows the flow of conventional workpiece conveyance.

FIG. 3 shows an example of the correlation between the pulling speed and the amount of liquid taken out of the workpiece in the present invention, and FIG. 4 shows an example of the correlation between the stop time on the tank and the amount of liquid taken out of the workpiece.

In the figure, 1...Cleaning cypress, 2...Cleaning liquid, 3...
・・Front cleaning tank, 4・・・Workpiece lateral movement (from the front tank), 5
... Lowering of the workpiece, 6.. Cleaning, 7.. Slow lifting of the workpiece, 8.. Pulling up the workpiece, 9.. Stopping of the workpiece on the cypress, 1o-.. Lateral movement of the workpiece (to the next tank). , 1l・
...This is the next tank.

(Effects) The workpiece conveyance system according to the present invention makes it possible to significantly reduce the amount of liquid taken out of the workpiece compared to conventional conveyance systems.

This makes it possible to lengthen the maintenance cycle and increase the number of workpieces to be processed/maintained, leading to cost reductions in the cleaning process.

By reducing the mixing rate of cypress liquid, the cleaning effect was improved by 5k.

[Brief explanation of the drawing]

Figure 1 shows the flow of workpiece conveyance according to the present invention. FIG. 2 shows the flow of conventional workpiece conveyance. FIG. 3k shows an example of the correlation between the pulling speed and the amount of liquid taken out of the workpiece in the present invention, and FIG. 4k shows an example of the correlation between the stop time on the tank and the amount of liquid taken out of the workpiece. Patented gluten Asahi Kasei Industries, Ltd.

Claims (1)

[Claims] In addition to the mechanism that transports the cleaning items to the washing tank,
Equipped with at least one mechanism that slowly pulls up the washed items or a mechanism that stops the washed items on the washing tank for a sufficient time to drain the liquid, and reduces the amount of liquid taken out of the washing tank by the washed items. A wet multi-tank automatic cleaning machine that is characterized by reducing