JP2008200660A - Cleaning implement and cleaning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning implement and a cleaning device capable of solving the problem of unevenness of supersonic output caused by the positional relation between an object to be cleaned and a supersonic oscillator and cheaply performing supersonic cleaning without using a complicated oscillating mechanism, in a small cleaning vessel with a small vessel capacity. <P>SOLUTION: The cleaning implement is provided with a movable case body 15 of which the rotary shaft center is arranged parallel to the oscillating surface 12a of a supersonic oscillator 12, and suspension members 18 rotating integrally with the movable case body 15 and supporting objects to be cleaned 21 in suspended state freely rotatably around the shaft center parallel to the rotating axial center of the movable case body 15, wherein the suspension members 18 are provided at equidistant positions from the rotary shaft center of the movable case body 15 and also at a plurality of places around the rotary shaft center. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cleaning jig and a cleaning apparatus, and relates to a technique for storing an object to be cleaned such as a precision part in a tank and cleaning it.

  Conventionally, a cleaning method using ultrasonic waves is widely known as a cleaning method for precision parts and the like, and recently, a cleaning method using vacuum suction has been proposed in order to further enhance the ultrasonic cavitation effect. Further, in order to further enhance the cleaning effect, the output of ultrasonic waves is increased and the target part is swung. This operation of swinging the target part solves the cleaning unevenness caused by the standing wave of the ultrasonic wave.

For example, in the case shown in FIG. 3, a cleaning basket 3 driven by a motor 2 is provided inside a sealable cleaning tank 1 to swing, rotate, and vibrate the object to be cleaned W. The cleaning liquid in the cleaning liquid tank 4 is supplied to the cleaning tank 1 through the liquid feed pump 5 and the jet liquid valve 6, and is ejected from the jet nozzle 7 provided in the cleaning tank 1 to the cleaning target W. The vacuum pump 8 depressurizes the inside of the cleaning tank 1 through the vacuum valve 9 and opens the vacuum of the cleaning tank 1 by opening the vacuum release valve 10. An air blow nozzle 11 is provided in the cleaning tank 1, and when the air valve 12 is opened, compressed air is ejected to the object to be cleaned W inside the cleaning tank 1. Further, the hot air generator 13 opens the hot air valve 14 to supply hot air into the cleaning tank 1.
Japanese Utility Model Publication No. 7-3379 JP 2006-255607 A JP 2004-330035 A

  However, in the conventional cleaning method, the cleaning tank 1 must have a sealed structure in order to make the inside of the cleaning tank 1 vacuum. Further, in the conventional cleaning method, the cleaning basket 3 is driven by the motor 2, and the object to be cleaned W is swung, rotated, or vibrated inside the cleaning tank 1, but depending on the positional relationship with the ultrasonic transducer. In order to solve the problem of non-uniformity of ultrasonic output that occurs, generally, a rack jig or the like that holds an object to be cleaned is swung vertically (vertically), and further horizontally (horizontal). It is also necessary to swing.

  However, the swing mechanism that swings the object to be cleaned three-dimensionally becomes a complicated mechanism, and it is difficult to provide such a swing mechanism in a cleaning tank with a sealed structure. It was limited to a washing machine. In addition, the structure for maintaining the hermetic sealing performance of the cleaning tank is complicated, and there is a problem that the apparatus becomes very expensive.

  SUMMARY OF THE INVENTION The present invention solves the above-described problem, and an ultrasonic output generated by a positional relationship between an object to be cleaned and an ultrasonic vibrator without using a complicated swing mechanism in a small cleaning tank having a small tank capacity. It is an object of the present invention to provide a cleaning jig and a cleaning apparatus that can solve the problem of non-uniformity and can perform ultrasonic cleaning at low cost.

  In order to solve the above-described problems, the cleaning jig of the present invention is disposed by immersing it in a cleaning agent stored in the cleaning tank, and the relative position of the object to be cleaned with the ultrasonic vibrator in the tank is variable. A movable housing that is arranged with a rotational axis parallel to the vibration oscillation surface of the ultrasonic vibrator, and rotates integrally with the movable housing, and the object to be cleaned is A suspension member which is supported in a suspended state so as to be rotatable about an axis parallel to the rotation axis of the movable casing, and the rotation member is at a position equidistant from the rotation axis of the movable casing and the rotation It is provided at a plurality of locations around the shaft center.

The movable housing includes a fin member, and rotates around the rotation axis in response to the flow of the cleaning liquid acting on the fin member.
The suspension member may have a shape that can be inserted into a hole existing in the object to be cleaned.

  The cleaning apparatus of the present invention includes a cleaning tank that stores a cleaning agent, a cleaning jig that holds an object to be cleaned and is immersed in the cleaning agent, and a cleaning liquid ejecting unit that ejects the cleaning liquid into the cleaning tank. And an ultrasonic transducer for irradiating the cleaning agent and the object to be cleaned with ultrasonic waves, and the cleaning jig is arranged with a rotational axis parallel to a vibration oscillation surface of the ultrasonic transducer. A housing and a suspension member that rotates integrally with the movable housing and supports the object to be cleaned in a suspended state so as to be rotatable around an axis parallel to the rotational axis of the movable housing; The suspension member is provided at a position equidistant from the rotation axis of the movable casing and at a plurality of locations around the rotation axis, and receives the jet of cleaning liquid ejected from the cleaning liquid ejecting means to receive the movable casing. A fin member that rotates around the rotation axis is provided on the movable casing. Characterized in that was.

  In the present invention, the cleaning jig holding the object to be cleaned is immersed in the cleaning agent in the cleaning tank, and the cleaning agent and the object to be cleaned are irradiated with ultrasonic waves from the ultrasonic vibrator. At this time, by rotating the movable casing around the rotation axis, the object to be cleaned supported by the suspension member of the cleaning jig is suspended around the axis of the suspension member parallel to the rotation axis of the movable casing. While rotating around the rotational axis of the movable housing.

  By rotating the cleaning object, the positional relationship of the plurality of cleaning objects at different distances from the vibration oscillation surface of the ultrasonic vibrator is changed, and the movable housing is held by the cleaning jig during one rotation. All objects to be cleaned are irradiated with ultrasonic waves under the same conditions. Therefore, the non-uniformity of the ultrasonic output generated due to the positional relationship with the ultrasonic transducer is eliminated, and the occurrence of cleaning unevenness can be suppressed because the ultrasonic wave is not affected by the standing wave.

  Further, according to the present invention, by inserting and supporting the suspension member through the hole existing in the object to be cleaned, there is no portion where the suspension member contacts the surface of the object to be cleaned, and scratches on the surface of the object to be cleaned are eliminated. Occurrence can be prevented.

  Further, according to the present invention, since the movable casing receives the jet of cleaning liquid acting on the fin member and rotates around the rotation axis to swing the object to be cleaned, it is mechanically large with a drive shaft or the like. There is no need to provide a special oscillating mechanism, and the cleaning tank has a simple structure in which only a circulation pump for generating a jet is disposed.

  Therefore, according to the present invention, the jig structure required for swinging can be simplified, and a cleaning jig and a cleaning apparatus capable of ultrasonic cleaning can be provided at low cost.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a cleaning device according to an embodiment of the present invention, and FIG. 2 is an enlarged perspective view of a cleaning jig attached to the cleaning device of FIG.

  1 and 2, water, alcohol, chlorofluorocarbon, etc. are stored in the cleaning tank 11 as a cleaning agent (not shown). An ultrasonic transducer 12 is disposed at the bottom of the cleaning tank 11 with the vibration oscillation surface 12a facing upward, and a circulation system 13 as cleaning liquid ejecting means is disposed at the side of the cleaning tank 11. The circulation system 13 includes a pipe 13a and a circulation pump 13b, and the cleaning liquid taken out from the tank to the pipe 13a by driving the circulation pump 13b is again ejected from the outlet 13c of the pipe 13a to the cleaning tank 11 in the horizontal direction.

  The cleaning jig 14 that is immersed in the cleaning agent is connected to the movable casing 15 composed of a plurality of disks 15a that can rotate around the rotation axis and the plurality of disks 15a of the movable casing 15. A handle 17 that is pivotally attached to the shaft 16 and rotatably holds the movable casing 15 and a rod-like suspension member 18 that is arranged in parallel with the rotational axis of the movable casing 15 are provided. The movable casing 15 has a magnet body 19 arranged at an appropriate interval on the outer periphery of the disk 15a, and a plurality of fin members 20 arranged radially on the surface of the pipe 13a facing the jet port 13c. Receiving the jet of the working cleaning liquid, it rotates around the rotation axis.

  The suspension member 18 has a shape that can be inserted into a hole 21a formed in the cleaning target object 21 such as a precision part, and has a spacer 18a that maintains a predetermined interval between the cleaning target objects 21, and between the spacers 18a. The constricted portion 18b has a constricted portion 18b, and the constricted portion 18b supports the object to be cleaned 21 in a suspended state so as to be rotatable about the axis. The suspension member 18 that holds the plurality of objects to be cleaned 21 is attached to the movable casing 15 with both ends thereof magnetically attached to the magnet body 19 so that the suspension member 18 can rotate integrally with the movable casing 15 and is movable. 15 is arranged in parallel with the rotation axis of the movable casing 15, and is arranged at a position equidistant from the rotation axis of the movable housing 15 and at a plurality of locations around the rotation axis.

  The cleaning jig 14 is installed on the bottom of the tank with legs (not shown) that support the connecting shaft 16 or is arranged with the handle 17 supported by a suspension means, and the vibration oscillation of the ultrasonic vibrator 12 is performed. The rotation axis is arranged parallel to the surface 12a.

  In the present embodiment, the rotational axis of the movable casing 15 is arranged in the horizontal direction, but it is not necessarily horizontal, and it is sufficient that the rotational axis is parallel to the vibration oscillation surface 12a of the ultrasonic transducer 12. . Further, the arrangement position of the ultrasonic transducer 12 is not limited to the tank bottom, but can be arranged on the tank side. Further, the suspension member 18 is not limited to a rod shape, and may have any shape as long as the axis is parallel to the rotation axis of the movable casing 15 and the cleaning target 21 is rotatably supported around the axis. good. Therefore, the movable casing 15 can also be structured such that the rotation axis is arranged in the vertical direction. In addition, the fin member 20 can have various shapes, and can be formed in a water wheel shape. As a general method, a rotational force can be obtained using a motor or the like as a drive source. Moreover, it can replace with the structure which magnetically attaches the suspension member 18 with the magnet body 19, and fixing by screwing, bundling by a rubber band, etc. can be used.

  With the configuration described above, the cleaning jig suspends the object to be cleaned 21 from the suspension member 18 and supports it in a suspended state, and the plurality of objects to be cleaned 21 can be rotated around the connecting shaft 16 by the rotation of the movable casing 15. Hold on. This cleaning jig is disposed so as to be immersed in the cleaning agent of the cleaning tank 11, and the fin member 20 is directed to the jet port 13c of the pipe 13a.

  The circulation pump 13b is driven, the cleaning agent in the tank is sucked into the pipe 13a, and ejected from the ejection port 13c toward the fin member 20. The fin member 20 that receives the jet of the cleaning agent applies a rotational force to the movable casing 15, and the movable casing 15 rotates integrally with the plurality of suspension members 18 that suspend the object 21 to be cleaned.

  In this state, the ultrasonic vibrator 12 irradiates the cleaning agent and the cleaning target object 21 with ultrasonic waves. While the ultrasonic wave is irradiated, the object to be cleaned 21 supported in the suspended state by the suspension member 18 is rotated along with the rotation of the movable housing 15, and the axis of the suspension member 18 is parallel to the rotation axis of the movable housing 15. It rotates around the rotational axis of the movable casing 15 while rotating around.

  By this rotational movement of the cleaning object 21, the positional relationship of the plurality of cleaning objects 21 at different distances from the vibration oscillation surface 12a of the ultrasonic vibrator 12 is switched. That is, the distance L between the cleaning object 21 rotating together with the movable casing 15 and the ultrasonic transducer 12 is a relationship of L = Msin θ + N (M: rotating jig diameter N: distance between the rotating jig and the ultrasonic transducer). And changes periodically. Similarly, the positions of the cleaning object 21 and the ultrasonic transducer 12 also change periodically.

  Therefore, while the movable casing 15 makes one rotation, the cleaning object 21 is in the same state as being swung up and down (vertical direction) and left and right (horizontal direction) due to periodic changes, and is held by the cleaning jig. All the objects to be cleaned 21 are irradiated with ultrasonic waves under the same conditions. Therefore, the non-uniformity of the ultrasonic output caused by the positional relationship with the ultrasonic transducer 12 is eliminated, and the occurrence of cleaning unevenness can be suppressed because the ultrasonic wave is not affected by the standing wave.

  In this way, the movable casing 15 receives the jet of cleaning liquid acting on the fin member 20 and rotates around the rotational axis to swing the cleaning target 21, so that a mechanically large special with a drive shaft or the like is required. The washing tank 11 has a simple structure in which a circulation pump 13b and the like for generating a jet are disposed.

  Further, the suspension member 18 is inserted into the hole 21a existing in the cleaning target object 21 to support the cleaning target object 21, and the cleaning target object 21 can be rotated around the axis by the constricted portion 18b between the spacers 18a. By supporting in a suspended state, adjacent cleaning objects 21 are prevented from contacting each other, and there is no portion where the suspension member 18 contacts the surface of the cleaning object 21, and scratches on the surface of the cleaning object 21 are eliminated. Occurrence can be prevented.

  INDUSTRIAL APPLICABILITY The present invention is useful for a cleaning jig and a cleaning method for storing an object to be cleaned inside for use in cleaning, and is particularly suitable for a precision jig and cleaning method for precision parts.

The perspective view which shows the washing | cleaning apparatus in embodiment of this invention The elements on larger scale which show the washing | cleaning apparatus in embodiment of this invention Schematic diagram showing a conventional cleaning device

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Cleaning tank 12 Ultrasonic vibrator 12a Vibration oscillation surface 13 Circulation system 13a Piping 13b Circulation pump 13c Spout 14 Cleaning jig 15 Movable housing 15a Disc 16 Connecting shaft 17 Handle part 18 Suspension member 18a Spacer 18b Constriction part 19 Magnet Body 20 Fin member 21 Object to be cleaned 21a Hole

Claims (4)

It is immersed in a cleaning agent stored in a cleaning tank, and the object to be cleaned is variably held relative to the ultrasonic vibrator in the tank, and the vibration oscillation surface of the ultrasonic vibrator A movable housing that is arranged with its rotational axis parallel to the surface, and rotates integrally with the movable housing so that the object to be cleaned can rotate about an axis parallel to the rotational axis of the movable housing. And a suspension member that supports the suspension in a suspended state, and the suspension member is provided at a position equidistant from the rotation axis of the movable casing and at a plurality of locations around the rotation axis. Ingredients. 2. The cleaning jig according to claim 1, wherein the movable housing has a fin member and rotates around the rotation axis in response to the flow of the cleaning liquid acting on the fin member. The cleaning jig according to claim 1, wherein the suspension member has a shape that can be inserted into a hole existing in the object to be cleaned. A cleaning tank for storing a cleaning agent, a cleaning jig that holds an object to be cleaned and is immersed and arranged in the cleaning agent, a cleaning liquid jetting unit that jets the cleaning liquid into the cleaning tank, the cleaning agent, and the cleaning agent An ultrasonic transducer that irradiates the object to be cleaned with ultrasonic waves, and the cleaning jig is arranged with a rotational axis parallel to the vibration oscillation surface of the ultrasonic transducer; A suspension member that rotates integrally with a body and supports the object to be cleaned in a suspended state so as to be rotatable about an axis parallel to the rotation axis of the movable casing, and the suspension member is supported by the movable casing. The movable casing is rotated around the rotational axis by receiving a jet of cleaning liquid ejected from the cleaning liquid ejecting means at positions equidistant from the rotational axis of the body and around the rotational axis. A fin member to be driven is provided in the movable casing. Kiyoshi apparatus.

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