JP2000254604A - Cleaning pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning pallet which is capable of holding washed objects having different outer diameters from each other, and rapidly performing the removal of a washing liquid remaining after washing, from the washed objects and the drying of the resulting objects when subjected to rotary drying. SOLUTION: This cleaning pallet 10 for drying washed objects in such a state that the objects are held on a pallet main body 1 after washing, while rotating the objects, is provided with: the main body 1; inverted-conical through- holes 2 each of which is formed through the main body 1 from its upper surface to its lower surface and receives one of the washed objects; and liquid guide grooves 3 formed at least in the upper surface of the main body 1; wherein each of the liquid guide grooves 3 is formed so as to extend from the center of the main body 1 to its outer periphery while passing through plural of the inverted-conical through-holes 2. Thus, the washed objects having different outer diameters from each other can be held in the inverted-conical through- holes 2 respectively and also, the liquid removal is promoted and the drying is rapidly performed by using the inverted-conical through-holes 2 and the liquid guide grooves 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning pallet for storing and holding an object to be cleaned such as a lens and a filter, and for cleaning and drying the object to be cleaned in the held state.

[0002]

2. Description of the Related Art The optical characteristics and quality of optical components such as lenses and filters of optical equipment and components to which these optical components are mounted are affected by contaminants such as dust and dirt in the air and oils and fats. For many parts, the surfaces of the parts are cleaned by hand wiping with a solvent or cleaning with an ultrasonic cleaner.

In ultrasonic cleaning of optical components such as lenses and filters, many optical components are cleaned at one time. At that time, the mutual contact between the optical parts and the contact between the optical parts and the cleaning basket containing the optical parts may cause uneven cleaning of the optical parts or damage the effective diameter of the optical parts. The optical component is set on a storage holder such as a carrier or pallet that holds and stores the outside of the effective diameter of the optical component, and the optical component comes into contact with the cleaning basket inside the optical component effective diameter. In this state, the substrate is immersed in a cleaning solution in a cleaning tank and cleaned by ultrasonic vibration.

Generally, storage holders such as carriers and pallets are manufactured so that a plurality of objects to be cleaned having the same shape are washed at the same time. ing. For this reason, it is difficult to simultaneously wash objects of different sizes with the same storage holder, and it takes a long time to wash all the objects of different sizes.

In order to solve such a problem, Japanese Utility Model Laid-Open No.
No. 23033 discloses a cleaning rack capable of holding lenses of different sizes. The cleaning rack has a supporting portion that supports a lower end surface of the object to be cleaned, a pair of left and right holding portions that hold both side surfaces of the object to be cleaned,
A support leg is provided on at least one of the holding portions and supported by a fulcrum, and the position of the tip portion is adjustable according to the size of the object to be cleaned. A connecting rod on which a spring is wound is connected to the support leg, and the support leg is urged in the closing direction by the spring. In such a cleaning rack, when the object to be cleaned is set on the support portion, the supporting legs hold the side of the object to be cleaned by applying the side surface of the object to the holding portion on the opposite side.

On the other hand, drying after washing is performed by a centrifugal dryer in order to prevent re-contamination due to natural drying after washing and to shorten the drying time. In this centrifugal dryer, the object to be washed wet with the washing liquid at the time of washing is set in the storage holder, and the washing liquid adhering to the object to be washed is pushed out to the outer periphery by the centrifugal force of the high speed rotation of the rotating shaft. And forcibly dry. In this centrifugal dryer, it is necessary to transfer the object to be washed from the storage holder for the washing machine to the storage holder for the centrifugal dryer in order to set the object to be washed. Has been recontaminated and work efficiency has been reduced.

[0007] Japanese Patent Application Laid-Open No. 6-208093 discloses a structure which does not require transfer of the object to be cleaned. FIG. 10 shows a dryer 200 disclosed in this publication. The dryer 200 includes therein a drying chamber 210 and a driving chamber 230 separated from the drying chamber 210 by a partition wall 220.

In the drive chamber 230, a motor 240 and a pulley 250 which is rotated by the drive of the motor 240 are arranged. A rotating shaft 260 extends upward from the pulley 250, and the rotating shaft 260 passes through the partition wall 220. Drying room 2
10 extend into. A pair of arms 270 are attached to the upper part of the rotating shaft 260, and a carrier holder 280 is attached to each arm 270. Each carrier holder 280 holds a lens carrier 290 shown in FIG.

As shown in FIG. 11, the lens carrier 290 has a rectangular frame 292 made of stainless steel. A large number of lens receiving grooves 291 are provided inside the frame body 292.
Plate 2 made of tetrafluoroethylene on which is formed
A support rod 294 made of brass to which 93 is attached is attached in a parallel state. This support rod 294 is the lens 30
The lens 30 is provided so as to support 0 at three points.
By dropping 0 into the lens receiving groove 291, the lens 300 is held upright.

In this structure, cleaning is performed with the lens 300 held by the lens carrier 290, and after cleaning, the lens carrier 290 is directly placed on the carrier holder 280 of the dryer 200. By driving the dryer 200 in this mounted state, the lens 300 is dried. For this reason, the lens after cleaning can be transferred to the dryer 200 while being set on the lens carrier 290, and the transfer can be performed in a short time.

[0011]

However, in the structure disclosed in Japanese Utility Model Laid-Open No. Hei 6-23033, the structure of the supporting legs is complicated, so that the liquid is taken out of the cleaning tank after the cleaning, and the next cleaning tank is required. A large amount of dirty liquid from the pre-cleaning step is mixed into the cleaning liquid. For this reason, the liquid exchange cycle is shortened, and the cost is increased. Further, since the supporting leg is urged by a spring and presses the outer peripheral surface of the lens by the spring force, there is a problem that the optical component having a thin edge is easily broken and the structure is complicated.

In the lens carrier 290 of Japanese Patent Application Laid-Open No. 6-208093, the lens is supported at three points, but it is fixed and has the inconvenience that only lenses having the same outer diameter can be held. . In addition, a liquid pool easily occurs on the lower surface of the lens, and spots are easily formed by the liquid pool. Further, in drying by high-speed rotation in a centrifugal dryer, a large centrifugal force acts on the lower end of the lens during rotation, and thus there is a problem that an optical component with a thin edge is cracked. Further, the micro-diameter lens cannot be stably held, and therefore has an instability that the lens falls off from the lens carrier during cleaning or drying.

The present invention has been made in view of the above-mentioned problems of the prior art, and can surely hold objects to be cleaned having different outer diameters. An object of the present invention is to provide a cleaning pallet that can be quickly cleaned and dried without performing cleaning.

[0014]

According to a first aspect of the present invention, there is provided a cleaning pallet for drying an object to be cleaned while rotating the object to be cleaned while holding the object after cleaning. A mortar-shaped through-hole formed through the upper surface and the lower surface of the main body to store an object to be cleaned, and a liquid guiding groove provided at least on the upper surface of the main body, and the liquid guiding groove passes through the mortar-shaped through hole. And provided from the center of the main body toward the outer peripheral direction.

In the present invention, the mortar-shaped through hole holds the object to be cleaned on a slope portion having the same diameter as the outer diameter of the object to be cleaned.
Therefore, even objects to be cleaned having different outer diameters can be reliably held.

The mortar-shaped through hole and the liquid guide groove provided on the upper surface of the main body so as to pass through the mortar-shaped through hole ensure a flow path of the cleaning liquid to the entire surface of the object to be cleaned, and supply or remove the cleaning liquid. . Furthermore, the rotation of the pallet during drying is performed at a high speed around the center of the main body as a rotation axis, and centrifugal force acts. Extruded. Therefore, cleaning and drying can be performed while the object to be cleaned is held on the pallet.

The material of the pallet is preferably a material having water repellency, such as a fluororesin such as tetrafluoroethylene (trade name "Teflon"), a polyolefin resin such as polyethylene or polypropylene, or a polyacetal, and particularly preferably Teflon.

The angle of inclination of the mortar-shaped through hole for storing the object to be cleaned is desirably 30 to 70 °, particularly desirably 30 to 50 °. If the angle is smaller than 30 °, the contact area with the optical surface becomes large when the object to be cleaned is an optical component.

The liquid guiding groove is preferably a V-shaped groove, a U-shaped groove or the like.
Further, the depth of the groove is desirably 2/3 or less of the thickness of the main body of the pallet, and if it exceeds 2/3, the strength of the pallet becomes weak. The inclination angle of the side wall of the liquid guiding groove is desirably 30 to 90 °, and is particularly 3 ° like the mortar-shaped through hole for storing the object to be cleaned.
0 to 70 ° is desirable. When the angle is smaller than 30 °, the cleaning liquid hardly flows because the inclination is gentle, and when the angle is larger than 70 °, particularly, in the case of the V-shaped groove, the width of the groove becomes narrow, so that the cleaning liquid is hardly swept. In addition, the liquid guide groove can be an inclined groove having a slope of, for example, 1 ° or less, which gradually decreases from the center of the main body of the pallet toward the outer periphery, so that the cleaning liquid can be swept satisfactorily. .

According to a second aspect of the present invention, there is provided a cleaning pallet for drying an object to be cleaned while rotating while holding the object to be cleaned after the cleaning, wherein the pallet is formed through the upper and lower surfaces of the main body. A mortar-shaped through-hole for storing an object, and a liquid guide hole having a diameter equal to or less than the opening on the small diameter side of the mortar-shaped through-hole and provided in a sloping portion of the mortar-shaped through-hole in a penetrating manner. It is characterized by the following.

In the mortar-shaped through hole according to the present invention, the object to be cleaned is held on the slope portion having the same diameter as the outer diameter of the object to be cleaned. Can be.

Further, when the pallet rotates at a high speed, the cleaning liquid is pushed out in the outer peripheral direction along the mortar-shaped through-hole and the liquid guide hole provided in the slope of the mortar-shaped through-hole. Therefore, the cleaning liquid can be efficiently removed.

It is desirable that the material of the pallet and the angle of inclination of the mortar-shaped through hole for storing the object to be cleaned are the same as those in the first aspect. On the other hand, the liquid guide hole is desirably arranged on the side where the cleaning liquid easily accumulates when a centrifugal force acts in the mortar-shaped through hole of the main body of the pallet. For this reason, it is preferable that this liquid guide hole is disposed on a slope located in the outer peripheral direction from the pallet center of the mortar-shaped through hole.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. In each of the embodiments, the same elements are denoted by the same reference numerals and correspond to each other.

(Embodiment 1) FIGS. 1 to 5 show Embodiment 1 of the present invention. FIG. 1 is a plan view of a cleaning pallet 10 in this embodiment, and FIG. FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. The cleaning pallet 10 includes a disk-shaped main body 1 made of a water-repellent resin such as tetrafluoroethylene, polyolefin, or polyacetal;
A plurality of mortar-shaped through holes 2 provided in the main body 1 and a liquid guiding groove 3 are provided.

The main body 1 is entirely rotated, and a center hole 11 penetrates in a thickness direction in a central portion thereof. The entire cleaning pallet 10 rotates around the center hole 11.

The plurality of mortar-shaped through holes 2 are provided at predetermined intervals on a line radiated at an equal angle around the center hole 11 of the main body 1 and penetrate the main body 1 in the thickness direction. As shown in FIG. 4, each mortar-shaped through hole 2 has a large diameter on the upper surface 1a side of the main body 1 and a small diameter on the lower surface 1b side of the main body 1. 1 to 4, reference numeral 2a denotes an opening on the upper surface side, and 2b denotes an opening on the lower surface side.
a, 2b are connected by a slope 2c. In this embodiment, the slope 2c is formed at an inclination angle of 45 °.

Each mortar-shaped through-hole 2 accommodates an object 6 to be cleaned such as a lens. This storage is the opening 2 on the top side
This is performed by dropping the object 6 to be cleaned into the mortar-shaped through hole 2 from a. FIG. 5 shows the dropped object 6 to be cleaned.
As shown in FIG.
When the diameter at the predetermined depth becomes the same diameter, the outer peripheral edge portion 6a of the article 6 to be cleaned is held by the slope 2c. Therefore, even objects to be cleaned having different outer diameters can be reliably held.

The liquid guide groove 3 is provided on the upper surface of the main body 1. The liquid guiding groove 3 is provided so as to pass through the mortar-shaped through-holes 2 arranged on the radiation.
A plurality of liquid guide grooves 3 are provided radially from the center hole 11 of the main body 1 toward the outer periphery. The liquid guide groove 3 in this embodiment is formed as a V-shaped groove having an inclination angle of 45 °. Each liquid guide groove 3 is inclined at a low angle of 1 ° or less from the center of the main body 1 toward the outer periphery. As the height decreases outward, the liquid can be favorably guided to the outside along the liquid guide groove 3.

In this embodiment, as shown in FIG.
The lid 8 can be attached. The lid 8 has the same diameter as the main body 1 and has a central hole 8a communicating with the central hole 11 of the main body 1. The lid 8 is formed in a mesh shape or a lattice shape with a resin or the like, and thus has a liquid hole 8b through which a liquid flows. The lid 8 is placed on the upper surface of the main body 1 to prevent the object 6 to be cleaned from moving or falling off in the mortar-shaped through-hole 2. To attach the lid 8 to the main body 1, a screw hole 12 (see FIG. 1) is formed in the main body 1, and after the lid 8 is covered on the upper surface of the main body 1, the lid 8 is pressed against the main body 1 with a screw. This can be easily performed.

FIG. 6 shows a cleaning pallet 10 according to this embodiment.
1 shows a cleaning / drying apparatus 20 to which the first and second cleaning tanks 21 and 22 and a drying tank 23 are provided. First
The second cleaning tanks 21 and 22 are provided with an ultrasonic vibrator 24 so as to perform cleaning by ultrasonic vibration. Also, the first and second cleaning tanks 21 and 22 and the drying tank 2
3, the rotation motor 25 moves sequentially. Rotary motor 2
5 is provided with a rotating shaft 26 that hangs downward. The rotating shaft 26 is inserted into the center hole 11 of the cleaning pallet 10, whereby the cleaning pallet 10 is attached to the rotating shaft 26. When the rotating motor 25 is driven in this mounted state, the washing and drying are performed while rotating.

In such a washing and drying apparatus, the rotating shaft 26
The washing pallet 10 is attached to each of the tanks 21 and
The transfer can be performed between the pallets 2 and 23, and when transferring from the washing step to the drying step, there is no need to transfer the article 6 to be washed between different pallets. Therefore, workability is improved.

In the embodiment described above, the object 6 to be cleaned dropped into the mortar-shaped through hole 2 provided in the main body 1 of the cleaning pallet 10 has the same diameter as the outer diameter of the mortar-shaped through-hole. Since the outer peripheral edge portion 6a hits the slope 2c of the hole 2, the hole 2 does not move further downward.
For this reason, the to-be-cleaned object 6 is reliably held by the mortar-shaped through-hole 2 without falling through the mortar-shaped through-hole 2.

Since the diameter of the mortar-shaped through hole 2 decreases from the upper surface to the lower surface of the main body 1,
Can be housed in the same washing pallet 10 even if their outer diameters are different. In this case, by reducing the diameter of the opening 2b on the lower surface side of the mortar-shaped through hole 2,
Can be securely held even if the lens has a small diameter.

When the cleaning pallet 10 is immersed in the cleaning tanks 21 and 22, the cleaning liquid is fed into the mortar-shaped through hole 2 penetrating the main body 1 from the opening 2b on the lower surface side. At this time, the liquid guide groove 3 passing through the mortar-shaped through hole 2 secures a flow path of the cleaning liquid from the lateral direction to the entire surface of the cleaning target 6. Therefore, the cleaning liquid can satisfactorily contact the object 6 to be cleaned.

After the cleaning, the entire cleaning pallet 10 is pulled up from the cleaning tanks 21 and 22 together with the cleaning motor 25. At the time of this lifting, the liquid guiding groove 3 is attached to the main body 1.
The cleaning liquid can be quickly fed into the mortar-shaped through-hole 2 because the cleaning liquid has a slope that becomes lower toward the outer periphery of the mortar. Further, in the mortar-shaped through hole 2, the cleaning liquid is discharged from the opening 2b on the lower surface side along the slope 2c, so that the cleaning liquid can be discharged quickly. For this reason, carry-out of the cleaning liquid to the next step can be reduced.

After the washing step, the washing pallet 10 is transferred into the drying tank 23 and rotates at a high speed in the same tank 23. In the high-speed rotation of the cleaning pallet 10, a centrifugal force acts between the cleaning pallet 10 and the object 6 to be cleaned, and the cleaning liquid is pushed out to the outer periphery of the object 6 or the outer periphery of the main body 1 by the centrifugal force.
At this time, the cleaning liquid moves from the mortar-shaped through-hole 2 to the outer peripheral direction of the cleaning pallet 10 through the liquid guide groove 3 directed toward the outer peripheral direction of the main body 1.
Liquid is quickly drained at the outer peripheral edge of the. Therefore, the cleaning liquid can be quickly and reliably cut off, and the occurrence of spots due to the liquid pool can be prevented.

Although the liquid guide groove 3 is provided on the upper surface 1a of the main body 1 in this embodiment, the lower surface 1b of the main body 1 also passes through the mortar-shaped through hole 2 similarly to the upper surface 1a. The liquid guiding groove 3 can be provided as described above. By providing the liquid guide groove 3 on the lower surface 1b in this manner, it is possible to quickly discharge the cleaning liquid collected at the opening 2b on the lower surface side of the mortar-shaped through-hole 2 at the beginning of rotation drying.

(Embodiment 2) FIGS. 7 to 9 show Embodiment 2 of the present invention. In this embodiment, the first embodiment
Similarly, a plurality of mortar-shaped through holes 2 penetrating in the thickness direction are provided radially with respect to the main body 1. Each of the mortar-shaped through holes 2 has a large-diameter opening 2a on the upper surface 1a side of the main body 1 and a small-diameter opening 2b on the lower surface 1b side of the main body 1, as in the first embodiment. A slope 2c is formed between the openings 2a and 2b. The slope 2c is formed at the same angle as in the first embodiment.

The mortar-shaped through hole 2 in this embodiment
Are each provided with a liquid guide hole 5. The liquid guide hole 5 is provided on the slope 2 c of each of the mortar-shaped through holes 2, and penetrates linearly from the slope 2 c to the lower surface 1 b of the main body 1. The liquid guide hole 5 penetrates so as to have a smaller diameter than the opening 2 b on the lower surface side of the mortar-shaped through hole 2. Therefore, the object 6 to be cleaned dropped into the mortar-shaped through-hole 2 does not enter the liquid guide hole 5 to close the liquid guide hole 5 or fall from the liquid guide hole 5. Here, the liquid guide hole 5 is provided so as to be located on the outer peripheral side of the main body 1 on the slope 2 c of the mortar-shaped through hole 2.

The above-described liquid guide hole 5 is provided in the cleaning tank 21,
During rotation within the mortar 22 (see FIG. 6), the cleaning liquid is fed into the mortar-shaped through-hole 2 from the lower end, similarly to the opening 2 b on the lower surface side of the mortar-shaped through-hole 2. Also, the cleaning tank 21,
When the cleaning pallet 10 is pulled up from the hopper 22, the cleaning liquid collected along the slope 2c of the mortar-shaped through-hole 2 is dropped downward similarly to the opening 2b on the lower surface side of the mortar-shaped through-hole 2. Therefore, the carry-out of the cleaning liquid to the next step can be reduced.

On the other hand, when the cleaning pallet 10 rotates at a high speed in the drying step, the cleaning liquid is washed by the centrifugal force of the rotation.
And the outer periphery of the main body 1. At this time, since the liquid guide hole 5 is provided so as to be located on the outer peripheral side of the main body 1, the cleaning liquid extruded to the outer peripheral side in the mortar-shaped through hole 2 falls from the liquid guide hole 5 and runs out of liquid. Done. Therefore, the cleaning liquid can be drained at the shortest distance, and the liquid can be quickly drained. Thereby, it is possible to suppress the occurrence of stains due to the liquid pool.

In this embodiment, the first embodiment
Although the liquid guiding groove 3 (see FIG. 1) passing through the mortar-shaped through hole 2 described in the above is not provided in the main body 1, it is also possible to arrange the liquid guiding groove 3.

From the above description, the present invention includes the following inventions.

(1) In a cleaning pallet for drying an object to be cleaned while rotating while holding the object to be cleaned after cleaning, the cleaning pallet is formed through the upper surface and the lower surface of the main body to store the object to be cleaned. A mortar-shaped through-hole, and a liquid guide groove provided at least on the upper surface of the main body, wherein the liquid guide groove passes through a large-diameter side opening of the mortar-shaped through-hole and extends from the center of the main body toward the outer periphery. A cleaning pallet characterized by being provided to a pallet.

In the present invention, since the liquid guiding groove passes through the opening on the large diameter side of the mortar-shaped through hole, the cleaning liquid can be smoothly introduced into the mortar-shaped through hole from the large diameter side opening. In addition, the introduced cleaning liquid can be discharged from the slope of the mortar-shaped through hole in the outer peripheral direction. Therefore, the liquid can be smoothly drained.

[0047]

As described above, according to the first aspect of the present invention, the mortar-shaped through hole holds the object to be cleaned on the slope portion having the same diameter as the outer diameter of the object to be cleaned. Even a washed object can be reliably held. In addition, the mortar-shaped through-hole and the liquid guide groove ensure a flow path of the cleaning liquid to the entire surface of the object to be cleaned to smoothly supply or remove the cleaning liquid. It is extruded in the outer circumferential direction along the guide groove, and can be dried without stains. Further, it is possible to perform cleaning and drying while holding the object to be cleaned on the pallet.

According to the second aspect of the present invention, the cleaning liquid can be smoothly discharged by the mortar-shaped through-hole and the liquid guide hole, so that the liquid can be quickly drained.

[Brief description of the drawings]

FIG. 1 is a plan view of a cleaning pallet according to a first embodiment of the present invention.

FIG. 2 is a partially enlarged plan view of FIG. 1;

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a longitudinal sectional view of the first embodiment.

FIG. 5 is an enlarged sectional view of a portion B in FIG.

FIG. 6 is a sectional view of a cleaning / drying apparatus to which the present invention is applied.

FIG. 7 is a plan view of a cleaning pallet according to a second embodiment.

FIG. 8 is a longitudinal sectional view of the second embodiment.

FIG. 9 is an enlarged sectional view of a portion C in FIG. 8;

FIG. 10 is a partially cutaway perspective view of a conventional drying device.

FIG. 11 is a perspective view of a lens carrier used in a conventional drying device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Crate-shaped through-hole 3 Liquid guide groove 5 Liquid guide hole 6 Object to be cleaned

Claims (2)

[Claims] 1. A cleaning pallet for drying an object to be cleaned while rotating while holding the object to be cleaned after cleaning, comprising: a mortar formed through the upper surface and the lower surface of the body to store the object to be cleaned. And a liquid guide groove provided at least on the upper surface of the main body, wherein the liquid guide groove passes through the mortar-shaped through hole and is provided from the center of the main body toward the outer periphery. A washing pallet characterized by the following. 2. A cleaning pallet for drying an object to be cleaned while rotating while holding the object to be cleaned after the cleaning, wherein a mortar formed through the upper surface and the lower surface of the body to store the object to be cleaned. And a liquid guide hole having a diameter equal to or less than the opening on the small diameter side of the mortar-shaped through hole and being provided in a sloping part of the mortar-shaped through hole in a penetrating manner. Wash pallets.