JPH0429899Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a cleaning device for removing chips present in holes in a system head or other workpiece.

(Prior Art) Conventionally, a cleaning head is provided in a cleaning booth so as to be movable up and down, and a liquid supply system known from Japanese Utility Model Application Publication No. 61-22586 has a nozzle on the bottom surface for spouting a gas-liquid mixed cleaning liquid to the cleaning head. A cleaning device having a plurality of boxes is known, and in this case, a mixing section for mixing air and cleaning liquid is generally arranged near the inlet of each liquid supply box.

(Problems to be solved by the invention) In the above-mentioned conventional technology, each mixing section is arranged near the inlet of each liquid supply box, so each mixing section moves up and down together with the cleaning head. Two flexible tubes, one for supplying air and the other for supplying cleaning liquid, must be connected to each mixing section, which tends to make the piping complicated and also increases the size of the cleaning head.

An object of the present invention is to provide a device that solves these problems.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a cleaning head which can be raised and lowered in a cleaning booth, and a feeder having a nozzle on the bottom surface for spouting a gas-liquid mixed cleaning liquid to the cleaning head. In the case where a plurality of liquid boxes are provided, a plurality of mixing parts for mixing air and cleaning liquid are provided on the upper wall of the cleaning booth, and the outlet of each mixing part and the inlet of each liquid supply box are connected to each other. They are characterized by being connected to each other using flexible tubes.

(Function) A work is carried into the cleaning booth, the cleaning head is lowered to a predetermined cleaning position, and then a gas-liquid mixed cleaning liquid is jetted from each nozzle, thereby cleaning the work.

In this case, since each mixing section is located on the upper wall of the cleaning booth, only one flexible tube is needed to connect each liquid supply box, which simplifies piping. Because of this arrangement, the head can be made smaller.

(Example) Referring to FIG. 1, 1 is a cleaning booth, 2 is a conveyor for transporting a cylinder head A as a workpiece with the combustion chamber wall surface facing upward, and a pair of A cleaning head 4 that is moved up and down by cylinders 3, 3, and a conveyor 2 below it.
A plurality of retractable stoppers 5 are provided to stop the upper cylinder head A at a fixed position, and a liquid supply box 7 having a nozzle 6 on the lower surface for spouting a gas-liquid mixed cleaning liquid onto the lower surface of the head 4 is provided. A plurality of cylinder heads A are arranged at intervals so that a plurality of cylinder heads A carried into the booth 1 by the conveyor 2 are simultaneously cleaned.

In the drawings, reference numerals 8 and 8 indicate doors provided at the entrance and exit of the cleaning booth 1, respectively, and 8a and 8a indicate cylinders for opening and closing the respective doors.

As shown in FIG. 2, the nozzles 6 described above are provided on the lower surface of each of the liquid supply boxes 7, facing the through holes a opened in the upper surface of the cylinder head A led to the lower side of the box 7. The gas-liquid mixed cleaning liquid introduced into the liquid supply chamber of the liquid supply box 7 from the side inlet 7a can be jetted from each nozzle 6 toward each through hole a.

In the drawings, reference numeral 7b indicates a cushion provided on the bottom surface of each liquid supply box.

Here, a plurality of mixing parts 9 for mixing air and cleaning liquid are provided on the upper wall part 1a of the cleaning booth 1, and an outlet 9a of each mixing part 9 and an inlet of each liquid supply box 7 are provided. 7a were connected to each other by respective flexible tubes 10.

As shown in FIG. 3, each mixing section 9 has an air inlet 9d opening at one end in the axial direction of a mixing chamber 9c having a circular cross section in the casing 9b, and an air outlet 9a opening at the other end. , the air inlet 9
cleaning liquid inlets 9f opening in the radial direction on the outside of the cylindrical wall portion 9e of d, and each air inlet 9d is disposed on the upper wall portion 1a of the cleaning booth 1 via each pipe 11. In addition to connecting to the common air source 12, each cleaning liquid inlet 9f is connected to each pipe 13.
It was connected to the pump 14 via.

In this case, the air inlet 9d may be configured with a plurality of small holes as shown in FIG. 4, so that air is mixed into the cleaning liquid in the form of smaller bubbles.

Next, to explain the operation of the embodiment, first, the cylinder head A is carried into the cleaning booth 1 by the conveyor 2, and each stopper 5 is projected upward to stop the cylinder head A at a fixed position on the conveyor 2. Then, the cleaning head 4 is attached to the bottom surface of each liquid supply box 7, and the cushion 7b is attached to each cylinder head A.
It is lowered to a predetermined position where it contacts the upper surface, and then the gas-liquid mixed cleaning liquid is ejected from each nozzle 6 from each mixing part 9 toward each through hole a of each cylinder head A. Chips, etc. inside are removed.

Next, after stopping the ejection of the gas-liquid mixed cleaning liquid, the cleaning head 4 is raised, each stopper 5 is retracted, and each cylinder head A is discharged by the conveyor 2 to complete the work.

In this case, since each mixing part 9 is arranged on the upper wall part 1a of the cleaning booth 1, only one flexible tube 10 is required to connect each liquid supply box 7, and therefore the piping can be simplified. It is sufficient to dispose only the liquid supply box 7 in the cleaning head 4, and the size of the head 4 can be reduced.

Further, air pressure is supplied to each mixing section 9 at approximately 2 kg/cm ³ and cleaning liquid pressure at approximately 3 kg/cm ³ .In this case, air is supplied to the cleaning liquid continuously or intermittently. You can also do it.

(Effects of the invention) As described above, according to the invention, each mixing section for mixing air and cleaning liquid is separated from the cleaning head and placed on the upper wall of the cleaning booth, which simplifies piping. This has the effect of reducing the size of the cleaning head.

[Brief explanation of the drawing]

Fig. 1 is a cutaway side view of one example of the device of the present invention;
The figure and Figure 3 are the - and - lines of Figure 1, respectively.
FIG. 4 is a cross-sectional view of a modified example corresponding to the - line in FIG. 3. DESCRIPTION OF SYMBOLS 1... Washing booth, 1a... Upper wall of washing booth, 4... Washing head, 6... Nozzle, 7... Liquid supply box, 7a... Inlet, 9... Mixing section, 9
a... Outlet, 10... Flexible tube,
A...Cylinder head (work).

Claims (1)

[Scope of utility model registration request] A cleaning head is installed inside the cleaning booth so that it can be raised and lowered.
The cleaning head is provided with a plurality of liquid supply boxes each having a nozzle on the bottom surface for spouting a gas-liquid mixed cleaning liquid, and a plurality of mixing units for mixing air and cleaning liquid are provided on the upper wall of the cleaning booth, and each A workpiece cleaning device characterized in that the outflow port of the mixing section and the inflow port of each of the liquid supply boxes are connected by respective flexible tubes.