JP6319666B2 - Drying apparatus and drying method for small parts - Google Patents

Description

  The present invention relates to a drying apparatus and a drying method for small parts.

  Since precision instruments can cause failure if a small amount of foreign matter is present, parts are cleaned prior to assembly into the product. For example, in Patent Document 1, as a method for manufacturing a ceramic substrate for a chip-like electronic component in which curved surfaces are formed in all the ridges and corners, a wet process is performed at any stage of a formed body, after calcination, and after firing. It is disclosed that polishing is performed by centrifugal barrel polishing. Small parts after centrifugal barrel polishing need to be cleaned with a cleaning liquid such as water or an organic solvent, and there is a demand for drying them efficiently.

  In addition, there is a demand for efficient drying after washing regardless of materials such as quartz, terminal parts, watch parts, screws, and other metals, ceramics, and resins.

  As a device for drying an object to be dried, which is a small part, it is composed of a bag having air permeability, a vacuum head provided in contact with or close to the bottom surface of the bottle, and a vacuum cleaner connected to the vacuum head. A drying apparatus is disclosed in Patent Document 2. This drying device is configured to generate an air flow toward the bottom surface of the basket by the suction force generated by the operation of the vacuum cleaner, and to dry an object to be dried by this air flow. This drying apparatus cannot uniformly dry all the objects to be dried unless a space through which airflow can sufficiently pass is formed between adjacent objects to be dried.

  Further, as a drying device having another configuration, a pipe having a sealed periphery, a storage container capable of storing a plurality of objects to be dried, a heater provided upstream of the air flow path, and provided downstream of the air flow path Patent Document 3 discloses a drying apparatus including a blower. Due to the operation of the air suction means, an air flow from upstream to downstream is generated in the air flow path. Since this drying apparatus is provided with a heating means upstream, air heated by the operation of the heating means passes through the air flow path. In the middle of the air flow path, a processing container connected to the rotation drive device is provided in an inclined manner. The object to be dried is agitated by rotating the processing container by the operation of the rotation driving device, and the object to be dried is dried by passing the heated air through the container. This drying device has better drying efficiency than the drying device disclosed in Patent Document 2, but the structure is complicated because the airflow passes through the closed space. In addition, depending on the size of the object to be dried, the adherence between the objects to be dried is strong due to the liquid, and it is difficult to separate the objects to be dried only by rotating the processing container. It is difficult to dry the dried product evenly. If an excessive external force is applied to the objects to be dried in order to separate the objects to be dried, the objects to be dried may be damaged.

Japanese Patent Laid-Open No. 08-213719 JP 2001-266938 A JP 2009-204227 A

  In view of the above problems, an object of the present invention is to provide an apparatus and a drying method for uniformly drying a plurality of objects to be dried which are small parts.

  In one aspect of the present invention, a drying device for drying a plurality of wet small parts that are to be dried is provided. The drying apparatus includes a drying container, a fluidizing mechanism, a suction member, and a suction mechanism. The drying container includes a bottom plate having air permeability and water permeability, and is configured to retain the material to be dried on a first surface that is a surface of the bottom plate. The fluidizing mechanism is configured to flow and stir the material to be dried in the drying container. The suction member is provided separately on the second surface side that is the opposite surface of the bottom plate on which the material to be dried is retained. The suction mechanism is connected to the suction member. The suction mechanism generates an air flow from the object to be dried toward the suction member and moves the liquid adhering to the object to be dried toward the suction member, and the suction member is in a region where the air current is generated. In this configuration, at least one of a change in the position of a certain suction area with respect to the first surface and a change in the air flow rate for each position of the suction area with respect to the first surface can be performed.

  And the drying method using the drying apparatus of one side is a process which accommodates a plurality of above-mentioned materials to be dried in the above-mentioned drying container, and operates the above-mentioned fluidization mechanism to fluidize and stir the above-mentioned materials to be dried. A step of operating the suction mechanism to pass the air stream through a space formed by the plurality of objects to be dried and peeling the liquid adhering to the object to be dried from the objects to be dried; Recovering the liquid peeled from the dried product. And, during the operation of the suction mechanism, at least one of the step of changing the position of the suction region with respect to the first surface or the step of changing the air flow rate for each position of the suction region with respect to the first surface Is further included.

  The drying apparatus according to one aspect dries an object to be dried only with an air flow generated by a suction mechanism. Although the airflow alone causes variations in the dry state depending on the position of the drying container with respect to the first surface, the drying device on this side can change the position of suction or the amount of air sucked for each position relative to the first surface. Therefore, all the objects to be dried can be dried evenly. The “suction position” is a concept including a change in the area of the suction region with respect to the first surface. Further, the “air flow” is not limited to a normal temperature air flow, and may be an air flow heated by a heat source arranged on the upstream side of the air flow (above the first surface side of the drying container).

  In one form, the suction member may be formed with a suction surface that is spaced apart from the second surface, and the suction surface may be divided into a plurality of portions. By switching the suction ON / OFF for each divided suction surface or changing the suction air volume, the object to be dried can be evenly dried.

  In one form, the suction member may be partitioned into a plurality of spaces, and may be connected to the suction mechanism independently for each space. Since the boundary of suction ON / OFF and suction air volume change becomes clearer, drying can be performed efficiently.

  In one form, the suction member may have a honeycomb structure. Since the position of the suction area with respect to the first surface of the suction member can be set freely, drying can be performed more efficiently.

  In one form, the suction member may be configured by bundling a plurality of hoses connected to the suction mechanism. The effect that the above-described suction member has a honeycomb structure can be realized by a simple mechanism.

  In one form, the fluidizing mechanism may include a holding mechanism that holds the drying container in an inclined manner and a rotation mechanism that rotates the drying container around the center of the bottom plate. Since the objects to be dried are agitated by gravity and the centrifugal force generated by the rotation of the drying container, the adhesion force between the objects to be dried by the liquid film formed on the surface of the objects to be dried can be weakened.

  According to one aspect or each aspect of the present invention, it is possible to uniformly and efficiently dry all the small parts accommodated in the drying container. Further, since the air flow path is a space where at least the upstream from the vicinity of the drying container to the suction member is released, the configuration of the apparatus is simpler than the conventional drying apparatus. With this configuration, a drying apparatus having excellent operability and maintenance can be obtained. In addition, in one side surface and one form, especially a small component whose diameter or at least any one side is 5 mm or less, or thickness is 5 mm or less can be dried suitably.

It is a schematic diagram for demonstrating the drying apparatus used by one form of this invention. It is a schematic diagram for demonstrating the shape of the suction surface in the suction member used by one form of this invention. FIG. 2A is a schematic diagram in which a honeycomb structure is formed in a hexagonal column shape, and FIG. 2B is a schematic diagram in which a honeycomb structure is formed in a columnar shape. It is a schematic diagram which shows another example of the suction member used by one form of this invention. It is a schematic diagram which shows another example of the suction member used by one form of this invention. It is a schematic diagram which shows the attraction | suction force generation source used by one form of this invention. It is a schematic diagram for demonstrating the area | region of the area | region of the 1st surface in the drying method used by one form of this invention.

  One form of the drying apparatus and drying method of this invention is demonstrated with reference to figures. The present invention is not limited to the following embodiments, and can be modified as appropriate without departing from the gist. In the following description, “up, down, left and right directions” refer to directions in the drawings unless otherwise specified.

  As shown in FIG. 1, one embodiment of the drying apparatus of the present invention includes a drying container 10, a fluidizing mechanism 20, a suction member 30, and a suction mechanism 40.

  The drying container 10 includes a disc-shaped bottom plate 11 having air permeability and water permeability, and a frame body 12 erected on the periphery of the bottom plate 11. With this configuration, the drying container 10 is formed in a cylindrical shape having an open upper end, and the object to be dried W can be retained on the bottom surface (first surface 11a) formed by the bottom plate 11. For example, the bottom plate 11 can be formed in a net-like shape having openings that can hold the material to be dried W.

  The fluidizing mechanism 20 is a mechanism for fluidizing and stirring a plurality of objects to be dried W retained in the drying container 10. A method of applying a vibration force to the drying container 10, a method of spraying compressed air intermittently, a method of rotating the drying container 10 to apply a centrifugal force to the object to be dried W, and being added to the object to be dried W in addition to the centrifugal force A method that uses gravity is considered. In the present embodiment, a method of utilizing the centrifugal force applied to the object to be dried W and the gravity applied to the object to be dried W by rotating the drying container 10 is adopted. The fluidization mechanism 20 of this embodiment includes a gantry 21 and a drying container 10 as a holding mechanism that tilts the drying container 10 at a predetermined angle α with respect to a horizontal plane and rotatably holds the center of the bottom plate 11 about an axis. A rotating mechanism 22 for rotating is included. The rotating mechanism 22 includes a rubber wheel 22a that contacts the frame body 12 of the drying container 10, a shaft 22b having one end fixed to the center of the circular surface of the wheel 22a, a motor 22c that generates rotational force, the other end of the shaft 22b, A pulley 22d fixed to the rotation shaft of the motor 22c, and a belt 22e spanned between the pulleys 22d are included. When the motor 22c is operated, the wheel 22a rotates through the shaft 22b, the pulley 22d, and the belt 22e. Since the wheel 22a is made of rubber, the friction coefficient is high and the wheel 22a is in contact with the frame 12, so that the drying container 10 is rotated by the rotation of the wheel 22a.

  When the drying container 10 rotates, centrifugal force is applied to the material to be dried W. Further, since the drying container 10 is inclined, a gravity component along the bottom plate 11 is added to the object to be dried W. When the drying container 10 rotates, the object to be dried W staying in the lower part of the drying container 10 moves following the frame body 12 due to gravity, but moves to a predetermined height, and the gravitational force generates centrifugal force. If it exceeds, it falls to the lower part along the bottom plate 11. Since this operation | movement is performed continuously, the to-be-dried material W is stirred.

  In order to disperse the material to be dried W well, it is necessary to adjust the inclination angle of the drying container 10 and the rotation speed of the drying container 10. It is preferable that the rotation speed of the drying container 10 when the inclination angle (predetermined angle α) of the drying container 10 is set at 30 ° to 70 ° is 10% to 30% of the critical rotation speed. The critical rotation speed is a rotation speed at which a centrifugal force that balances the gravity force is applied to the object to be dried W over the entire circumference of the drying container 10. When the inclination angle is too small and the rotation speed is too fast, the gravity component is small relative to the centrifugal force, so that the object to be dried W continues to rotate following the frame 12. When the tilt angle is too large or the rotation speed is too slow, the centrifugal force is small with respect to the gravitational force, and the material to be dried W cannot move a sufficient distance along the frame 12. As a result, in any case, the material to be dried W cannot be uniformly stirred.

  Moreover, if the rotational speed of the drying container 10 is changed according to the progress of drying, the to-be-dried object W can be dried more efficiently. Therefore, a rotation speed adjustment mechanism 23 for adjusting the rotation speed of the drying container 10 may be connected to the rotation mechanism 22. The rotation speed adjustment mechanism 23 is configured to be electrically controlled, such as an inverter, or a system that transmits the rotation of the motor to the shaft using a gear instead of the pulley 22d and the belt 22e in the rotation mechanism 22, and from the motor 22c to the shaft. A configuration in which the gear ratio is mechanically changed and other known configurations can be selected. In this embodiment, the rotation speed of the drying container 10 is adjusted by connecting the inverter to the motor 22c and adjusting the rotation speed of the motor.

  The suction member 30 is a surface (suction surface 31) with one end surface opened, and the suction surface 31 is positioned to face the second surface 11b, which is the opposite surface of the first surface 11a in the drying container 10. Has been placed. The other end is connected to the suction mechanism 40, and an air flow from the first surface 11a to the second surface 11b is generated in the drying container 10 by the operation of the suction mechanism 40 (this air flow is generated in the drying container 10). The area that is being used is the suction area). The liquid attached to the object to be dried W is sucked by this air flow, and the object to be dried W is dried by the air flow.

  The distance between the second surface 11b of the drying container 10 and the suction surface 31 of the suction member 30 is preferably as short as possible so as not to hinder the rotation of the drying container 10, and is generally 3 mm or less, more preferably 1 mm or less. It is preferable to do this. If this distance is long, air is excessively sucked also from the space between the second surface 11b and the suction surface 31, and the suction force on the first surface 11a side is weakened. It becomes difficult to dry.

  Since the material to be dried W is in a fluidized state in the drying container 10 and the fluidized state changes with the elapse of the drying time, it is preferable that the position of the suction region with respect to the first surface 11a can be changed. . That is, it is preferable that the suction surface 31 is divided into a plurality of parts.

  Moreover, the to-be-dried object W can be dried more efficiently by adjusting the suction force (that is, the airflow toward the suction member 30) for each position of the suction region with respect to the first surface 11a. In this case, it is preferable that the suction member 30 is partitioned into a plurality of regions and is connected to the suction mechanism 40 independently for each partitioned space. For example, a plurality of hoses 33 are used as the suction member, one end is disposed opposite to the second surface 11 b side, and the other end is an opening degree that can adjust the opening degree of the flow path of each hose 33 for each hose 33. The adjustment mechanism 34 may be arranged. In this case, you may arrange | position the hose 33 in a predetermined location away. Alternatively, a honeycomb structured suction frame 32 may be used, with one end surface serving as a suction surface 31, a hose 33 connected to each partitioned region on the other end surface, and each hose disposed in the opening adjustment mechanism 34. Good. The “honeycomb structure” referred to here is not limited to a configuration in which the partitioned region has a hexagonal column shape (see FIG. 2A), but the suction frame 32 having a columnar shape or a polygonal column shape is partitioned into a lattice shape. Includes configuration. FIG. 2B shows an example in which a plurality of hoses 33 are bundled to form a honeycomb structure.

  The suction member 30 of the present embodiment includes a suction frame 32 having a honeycomb structure, a hose 33 connected to a region of one end (opposite side of the suction surface) of the suction frame 32, and an opening degree adjustment capable of adjusting the opening degree of the hose 33, respectively. The mechanism 34 is configured. The opening adjustment mechanism 34 is connected to the suction mechanism 40.

  The structure of the suction mechanism 40 is not particularly limited as long as a suction force is generated on the suction surface 31. In this embodiment, the liquid collector 42 is provided in the path from the suction force generation source 41 and the suction member 30 to the suction force generation source 41. The suction force generation source 41 has a structure in which suction is performed with a negative pressure generated by ejecting gas or liquid from a nozzle. As shown in FIG. 5, the structure used in this embodiment is an injection nozzle 41a for injecting compressed air, an adjustment pipe 41b provided on the injection nozzle side of the injection nozzle 41a, and an injection nozzle side of the injection nozzle 41a on one end surface. A casing 41c that is inserted and fixed so as to be slidable, and that one end of the adjustment pipe 41b is inserted and fixed on the opposite surface side, and is suspended so as to cover a suction port opened on the other surface of the casing 41c. And a suction tube 41d. The tip of the injection nozzle 41a has a gentle taper structure, the inner diameter of the adjustment tube 41b is larger than the tapered surface, and the tip of the injection nozzle 41a is inserted into the adjustment tube 41b. The injection nozzle 41a is connected to an air compressor (not shown). When the air compressor is operated, compressed air is injected from the injection port of the injection nozzle 41a. Due to the flow of the compressed air, an air flow is generated in the casing 41c where the internal air is drawn into the adjustment pipe 41b. That is, the casing 41c becomes negative pressure by the operation of the air compressor, and a suction force is generated in the suction pipe 41d. The suction force can be adjusted by sliding the injection nozzle 41a and adjusting the distance between the tapered surface of the injection nozzle 41a and the inner wall at the tip of the adjustment tube 41b.

  As another example of the suction force generation source 41, an electric suction fan may be used.

  By the operation of the suction force generation source 41, the liquid and air attached to the object to be dried W are sucked into the suction surface 31. The sucked liquid and air are separated into liquid and air by the liquid collector 42, the liquid is collected by the liquid collector 42, and the air is sucked into the suction force generation source 41.

  The suction member 30 is not limited to the honeycomb structure as in the present embodiment. For example, the suction surface 31 is opened and the suction frame 32 having an area of the suction surface 31 equal to or larger than the second surface 11b is opposed to the second surface 11b side. It is good also as a structure which has arrange | positioned, divided | segmented the suction surface 31, and provided the opening / closing window which can be opened and closed for every area | region. For example, in FIG. 3, a disk-shaped dividing mechanism 35 provided with a plurality of windows having the same area is connected to the suction surface 31 of the suction member 30. The window of the dividing mechanism 35 is provided with a shutter (not shown) that can open and close the window, and the position of the suction area can be changed by arbitrarily opening and closing the opening and closing shutter.

  As another example of the suction member 30, a plurality of hoses 33 having a diameter much smaller than the second surface 11 b of the drying container 10 are spaced apart from each other at arbitrary positions so as to face the second surface 11 b. It is good also as a structure which arrange | positions and connects each hose 33 to the opening degree adjustment mechanism 34, and adjusts ON / OFF of suction and the amount of suction air. In this case, since it is possible to suck only the portion that needs to be sucked with the optimum air volume, it is possible to reduce the size of the suction force generating source 41 and the energy for operation. (See Figure 4)

  Next, the drying method of the to-be-dried object W using the drying apparatus 1 of this form is demonstrated. Here, as the material to be dried W, an alumina test piece (1.6 mm × 0.8 mm × 0.4 mm) which was polished with a wet centrifugal barrel polishing apparatus and then washed with water was used.

(1) The process of accommodating a to-be-dried object in a drying container The to-be-dried object W of the dried state is 75 of the length (length from the baseplate 11 to an opening end) of the frame 12 in the state where the drying container 10 inclined The dry matter W is accommodated in the drying container 10 so that the amount does not exceed%. This is to prevent the material to be dried W in the fluidized state from jumping out of the drying container 10 by the operation of the fluidizing mechanism 20. Thereafter, the drying container 10 is set on the gantry 21.

(2) Step of stirring the object to be dried The motor 22c is operated to rotate the drying container 10. The object to be dried W located below moves upward following the frame body 12 by centrifugal force, but if the component of gravity along the first surface 11a exceeds the centrifugal force on the way, the object to be dried W Falls downward along the first surface 11a. Since this operation is repeated while the drying container 10 continues to rotate, all the articles to be dried W are fluidized and uniformly agitated. In addition, since the objects to be dried W are in a wet state, the objects to be dried W are adhered to each other due to moisture adhering to the objects to be dried W. It is done. Since there is a lot of moisture in the initial stage of drying and this sticking force is strong, the drying speed is increased in the initial stage of drying so that the rotational speed of the drying container 10 is increased so that the falling motion occurs in a shorter time, and the rotational speed is decreased as the drying progresses. A step of adjusting the rotation speed of the container 10 may be provided.

(3) The process of removing the liquid adhering to a to-be-dried object The air compressor is operated and drying is started. When the air compressor is operated, a suction force is generated on the suction surface 31 of the suction member 30. Due to this suction force, the moisture adhering to the material to be dried W is peeled off and moved to the second surface 11b side. Moreover, in the drying container 10, the airflow which goes to the 2nd surface 11b side from the 1st surface 11a side generate | occur | produces. The moisture on the surface of the object to be dried W is also peeled off by this air flow and moves to the second surface 11b side. Moisture and air moved to the second surface 11 b side are sucked from the suction surface 31.

  The material to be dried W is in a fluidized state, and the fluidized state changes as the drying time elapses. Therefore, it is preferable to provide a step of changing the position of the suction region with respect to the first surface 11a. For example, as shown in FIG. 6, when the first surface 11a is divided into six regions, all regions are sucked at the initial stage of drying, and regions A, C, D, E, F → regions according to the progress of drying. C, D and the suction area can be changed. As a result, the suction force required for drying can be concentrated in a specific area, and thus drying can be performed efficiently.

  Moreover, the to-be-dried object W can be dried more efficiently by adjusting the suction force (that is, the airflow toward the suction member 30) for each position of the suction region with respect to the first surface 11a. For example, in the above description, the control is only ON / OFF of the suction for each of the areas A to F in FIG. 6, but the strength of the suction force can be combined for each of the areas according to the drying. At this time, when the suction member 30 is bundled with the honeycomb structure frame 32 or the plurality of hoses 33 so that the entire surface formed by the bundle of hoses is substantially equal to or more than the second surface 11b, In detail, the position of the suction region with respect to the first surface 11a can be set.

  Further, a heater (not shown) may be disposed on the upstream side of the airflow, that is, on the first surface 11a side of the drying container 10. Since the airflow heated by the heater passes between the objects to be dried W, drying can be promoted.

(4) Step of recovering liquid Water and air sucked by the suction member 30 are transferred to the liquid collector 42. Water and air are separated by the liquid collector 42, and the water is collected by the liquid collector 42. On the other hand, the air is transferred toward the suction force generation source 41.

(5) Completion of operation When the operation of the apparatus has elapsed for a predetermined time and drying is completed, the operation of the rotation mechanism 22 and the suction force generation source 41 is stopped. Thereafter, the drying container 10 is removed from the gantry 21, the material to be dried W is collected, and a series of drying operations is completed.

  Next, the results of drying the material to be dried W (the above-mentioned alumina test piece) using the drying apparatus 1 of the present embodiment will be described.

  The drying time was 5 minutes, and 2 minutes from the start of drying was the initial drying stage, 2 to 4 minutes were the middle drying stage, and 4 to 5 minutes were the late drying stage.

  The inclination angle of the drying container 10 was 50 °.

The suction member 30 was as follows.
A: A truncated cone shape in which the internal space is not divided B: A truncated cone shape in which the suction surface is divided into areas A to F in FIG. : A configuration in which six hoses 33 are used and one hose 33 is arranged in each of the areas A to F in FIG.
D: A structure having a honeycomb structure and controlled by the opening adjustment mechanism 34 so that the suction surface can be divided into regions A to F in FIG.

  Table 1 shows the operating conditions and the evaluation performed after completion of drying. “Rotation speed of the drying container” in Table 1 indicates the ratio (%) of the rotation speed to the critical rotation speed. Further, the suction air volume indicates each suction air volume on the suction surface corresponding to the region where the suction force is generated on the first surface 11a. When the above-described type C and D suction members 30 are used, the suction air volume can be set for each area, so the suction air volume for each area is set as shown in Table 2. (* Section in Table 1)

  Evaluation was performed about "adhesion to a container" and "dry state". The evaluation of “adhesion to the container” was performed visually. A case where adhesion to the dry container 10 was not confirmed was evaluated as “◯”, and a case where adhesion to the container was confirmed was evaluated as “x”. In the evaluation of “dry state”, 100 to-be-dried objects W that have been dried by the drying apparatus 1 are collected at random, and the total weight g is measured. Moreover, the weight G of 100 to-be-dried objects W in a dry state is measured in advance, and the ratio (g / G × 100) of the weight (g / G) after the drying operation by the drying apparatus 1 to the dry state weight is obtained. Calculation was made such that less than 105% was evaluated as “◎”, 105% or more and less than 110% was evaluated as “◯”, 110% or more and less than 120% was evaluated as “Δ”, and 120% or more was evaluated as “x”.

  While the drying container 10 was rotated, the suction mechanism 40 generated an air flow toward the second surface 11b in the drying container 10, so that the object to be dried W adhered to the drying container 10 was not confirmed. From this, it can be seen that the drying is in progress (Examples 1 to 8, Comparative Example 1). On the other hand, it can be seen that the drying does not proceed because only the rotation of the drying container 10 confirms that the material W to be dried adheres to the drying container 10 (Comparative Example 2).

  When the region to be sucked was changed in accordance with the progress of drying, the evaluation of the dry state was “◎”, “◯”, and “Δ”. (Examples 1 to 8) Since “Δ” evaluation indicates that moisture is removed to such an extent that it can be satisfactorily dried by changing the drying conditions (drying time, rotational speed, amount of material to be dried). Moreover, it turned out that Examples 1-8 can dry to-be-dried material W favorable in any case. In particular, when the suction force is further adjusted for each region to be sucked in accordance with the progress of the suction, both are evaluated as “◎” and “○”, and particularly when the suction member 30 has a honeycomb structure, it is particularly good. It turns out that it can dry. On the other hand, when the entire bottom plate 11 was sucked without changing the sucked area in accordance with the progress of drying, the evaluation was “x”. (Comparative Example 1) When combined with the above-mentioned evaluation of “adhesion to the container”, it suggests that although the drying proceeds, the material W to be dried cannot be dried well. In addition, in the case where the above-mentioned B type suction member is used and the case where the C type suction member is used, the evaluation of the dry state is both “◯” evaluation, but in the quantitative evaluation, the C type suction member is used. A better result was obtained when the suction member was used. (Examples 1 and 3)

  In the above embodiment, the case of drying an alumina test piece has been described as an example, but the material to be dried W is not limited to this. Crystals (clock parts, vibrators, oscillators, etc.), terminal parts, various electronic parts (resistor bases, varistors, resonators, SAW devices, high frequency modules, multilayer ceramic capacitors, inductors, etc.), clock parts (crystals, gears) , Etc.), screws, etc., regardless of the material such as metal, ceramics, resin, etc., the wet small parts can be efficiently dried.

DESCRIPTION OF SYMBOLS 1 Drying apparatus 10 Drying container 11 Bottom plate 11a 1st surface 11b 2nd surface 12 Frame 20 Fluidization mechanism 21 Base 22 Rotating mechanism 22a Wheel 22b Shaft 22c Motor 22d Pulley 22e Belt 23 Rotational speed adjustment mechanism 30 Suction member 31 Suction Surface 32 Suction frame 33 Hose 34 Opening adjustment mechanism 35 Dividing mechanism 40 Suction mechanism 41 Suction force generation source 41a Injection nozzle 41b Adjustment pipe 41c Casing 41d Suction pipe 42 Moisture collector W Dried material

Claims (7)

A drying apparatus for drying a plurality of small parts in a wet state, which is an object to be dried,
A drying container comprising a bottom plate having air permeability and water permeability and retaining the material to be dried on a first surface which is a surface of the bottom plate;
A fluidizing mechanism for allowing the material to be dried to flow and stir in the drying container;
A suction member provided on the second surface side that is opposite to the surface on which the material to be dried is retained in the bottom plate;
A suction mechanism connected to the suction member,
The suction mechanism generates an air flow from the object to be dried toward the suction member and moves the liquid attached to the object to be dried toward the suction member;
The suction member performs at least one of a change in the position of the suction area, which is an area where the airflow is generated, with respect to the first surface, or a change in the air volume of the airflow for each position of the suction area with respect to the first surface. A drying apparatus having a configuration capable of performing   2. The suction member according to claim 1, wherein the suction member is formed with a suction surface that is spaced apart from the second surface, and the suction surface is divided into a plurality of portions. Drying equipment.   The drying apparatus according to claim 2, wherein the suction member is partitioned into a plurality of spaces, and is independently connected to the suction mechanism for each space.   The drying apparatus according to claim 3, wherein the suction member has a honeycomb structure.   The drying apparatus according to claim 1, wherein the suction member is configured by bundling a plurality of hoses connected to the suction mechanism. The fluidizing mechanism includes a holding mechanism that holds the drying container in an inclined manner,
The drying apparatus according to claim 1, further comprising: a rotation mechanism that rotates the drying container about the center of the bottom plate. A drying method using the drying apparatus according to claim 1,
Storing a plurality of objects to be dried in the drying container;
Actuating the fluidizing mechanism to fluidize and stir the plurality of objects to be dried; and
Actuating the suction mechanism to pass the air stream through a space formed by the plurality of objects to be dried and peeling the liquid adhering to the object to be dried from the objects to be dried;
Recovering the liquid peeled from the object to be dried,
During the operation of the suction mechanism, at least one of the step of changing the position of the suction region with respect to the first surface or the step of changing the amount of airflow for each position of the suction region with respect to the first surface is further performed. A drying method comprising:

Images