JP3699182B2 - Drying equipment for electronic parts - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dryer for drying small precision parts such as electronic parts.
[0002]
[Prior art]
Recent precision instruments are manufactured by incorporating and connecting a large number of electronic components to a substrate or the like. Even if a small amount of dust or dirt is present in a precision instrument, it may cause a failure. Therefore, before manufacturing, cleaning is performed to remove dust and dirt on an electronic component to be incorporated. The cleaned electronic component is dried and then incorporated into a precision instrument.
[0003]
In the conventional drying process, a method of using a centrifugal drier to blow away the water remaining after washing with a centrifugal force and drying it was adopted. However, when a centrifugal dryer is used, there are problems such that the electronic components are rubbed against each other and damaged, or an excessive force is applied to a part of the electronic components due to the centrifugal force and the electronic components are deformed. In addition, it takes time and effort to sort out and eliminate such unusable electronic components, and this also causes a decrease in yield.
[0004]
On the other hand, as another method of drying the electronic component, a method of evaporating moisture by directly applying hot air to the electronic component can be adopted, but this method requires a large amount of heat energy to evaporate all the moisture, and Since it took a lot of time to dry, it was not a realistic method.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of such a background, and an object thereof is to provide a drying apparatus capable of efficiently drying small precision components such as electronic components while maintaining the quality thereof.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 is a series of air flow paths having a sealed periphery, a storage body provided in the middle of the air flow path, capable of storing a plurality of objects to be dried, and having an air inlet and an outlet. A heating means positioned upstream of the air flow path from the storage body, an air suction means positioned downstream of the air flow path from the storage body, and between the storage body and the air suction means. wherein possess a liquid-up tank is for storing water generated from the material to be dried, the container is located inside the main container, said main container processing tank and the liquid take-up by a partition plate having a communication hole The storage body can be arranged so that the outlet end of the container can be contacted around the communication hole of the partition plate in an air non-flowable state, and a passage communicating with the heating means is provided on the processing tank side. Connect and communicate with the air suction means on the liquid tank side It is drying apparatus such as an electronic component, characterized in that passages are connected.
[0007]
The invention according to claim 2 is characterized in that the storage body is a portable container body that is open at the top and provided with a net at the bottom, and is capable of holding the object to be dried on the net. A drying apparatus for electronic parts and the like according to claim 1.
[0009]
According to a third aspect of the present invention, another liquid collecting tank is provided outside the liquid collecting tank in the main body container and communicated with the other liquid collecting tank from a certain height of the liquid collecting tank in the main body container. 3. A drying apparatus for electronic parts and the like according to claim 1, further comprising a connecting tube.
[0010]
According to a fourth aspect of the present invention, there is provided a drying apparatus for electronic parts and the like according to the third aspect, further comprising a suction pipe extending from an upper portion of the other liquid collecting tank to the air suction means.
[0011]
[Action]
In the invention of claim 1, the air heated by the heating means is sucked through the air flow path by the air suction means. On the way, the heated air enters from the entrance of the storage body and exits from the exit through the plurality of objects to be dried. At this time, water existing between the objects to be dried is physically sucked and collected in the liquid collecting tank. Further, moisture present on the surface of the object to be dried absorbs heat from the heated air and evaporates, and as a result, the surface of the object to be dried is dried.
In the first aspect of the invention, the storage body can be arranged so that the outlet end of the storage body can be contacted around the hole of the partition plate in a state in which air cannot flow, so that the heated air has a contact portion between the partition plate and the storage body. Without passing, everything goes from the entrance of the container to the exit through the body to be dried.
[0012]
In the invention of claim 2, since the storage body is a portable container body, filling, taking out, and movement of an object to be dried into the container can be easily performed. Further, since the upper part of the container body is opened and the net is provided at the lower part, air can be circulated from the upper part to the lower part with the material to be dried placed on the net.
[0014]
In the invention of claim 3 , another liquid collecting tank is provided outside the liquid collecting tank in the main body container, and a communication tube communicating with the other liquid collecting tank from a certain height of the liquid collecting tank in the main body container is provided. Therefore, when the water is collected up to a certain height of the liquid collecting tank in the main body container, the overflowed water flows into another liquid collecting tank, and a large amount of water can be stored accordingly.
[0015]
In the invention of claim 4 , since the suction pipe extending from the upper part of the other liquid collecting tank to the air suction means is provided, the drain water is difficult to flow into the air suction means.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to FIGS.
In FIG. 1, reference numeral 1 denotes a drying apparatus according to the present invention. In the drying apparatus 1, a main body container 5, a heater 7, a blower 9 and a control panel 11 are arranged as main members with respect to a base frame 3.
[0017]
The main body container 5 has a lid body 13 that can be opened and closed in a rotating manner at the upper part thereof. When the lid body 13 is closed, the inside of the main body container 5 is sealed. An introduction port 15 is formed in the side portion of the lid body 13, and this introduction port 15 is connected to the heater 7 through a flexible tube 17.
[0018]
The inside of the main body container 5 is divided into two upper and lower tanks, that is, a processing tank 21 and a primary liquid collecting tank 23 by a partition plate 19 formed substantially at the center. A large communication hole 25 is formed at the center of the partition plate 19, and an annular packing 27 is provided around the communication hole 25 on the upper surface side of the partition plate 19. A treatment rod 29 having a handle 28 is placed on the packing 27, and the action of the packing 27 prevents air from flowing from the periphery of the lower end of the treatment rod 29 to the primary liquid collecting tank 23 side through the communication hole 25. It has become. Further, a holding member 31 extends from the partition plate 19 so as to hold the peripheral surface of the processing rod 29, whereby the processing rod 29 is positioned and held at a predetermined position.
[0019]
As shown in FIG. 6, the entire treatment basket 29 has a cylindrical shape, and a support net 33 having a mesh smaller than the object to be dried E such as an electronic component is provided on the lower surface side thereof. Further, a reinforcing net 35 having a large mesh for supporting the support net 33 from below is provided immediately below the support net 33. The upper end of the treatment basket 29 is opened so that the material to be dried E can be taken in and out.
[0020]
A primary drain pipe 37 is connected to the bottom of the lower part of the main body container 5, that is, the primary liquid collecting tank 23, and a cock 38 is provided in the middle thereof. During operation, the cock 38 is closed and the inside of the main body container 5 is sealed. The primary liquid collecting tank 23 is configured to collect water from the material E to be dried during the drying process, and the water can be discharged by opening the cock 38.
[0021]
One end of a connecting pipe 39 is connected to the side wall of the primary liquid collecting tank 23, and the other end side of the connecting pipe 39 is connected to a secondary liquid collecting tank 41 outside the main body container 5. A protective net 40 is provided at the entrance of the connecting pipe 39, so that the foreign matter that has been mixed with the dry matter E and the dry matter E that has fallen due to the breakage of the support net 33 of the treatment basket 29 are erroneously downstream. This prevents the blower 9 from malfunctioning.
[0022]
The secondary liquid collecting tank 41 plays a role of assisting the primary liquid collecting tank 23. A secondary drain pipe 43 is connected to the bottom of the secondary liquid collecting tank 41, and a cock 44 is provided in the middle thereof. Like the cock 38, the cock 44 is closed during operation, but the water accumulated in the secondary liquid collecting tank 41 can be discharged to the outside by opening the cock 44.
[0023]
A suction pipe 45 extends from the upper part of the secondary liquid collecting tank 41, and the other end is connected to the blower 9. The blower 9 has an exhaust pipe 47, sucks the air in the secondary liquid collecting tank 41 and exhausts it from the exhaust pipe 47.
[0024]
On the other hand, the heater 7 has a heating wire 49 and an air inlet 53 having a filter 51 on the side opposite to the side where the flexible pipe 17 is connected to the heater 7. The heater 7 is generally sufficient if the temperature of the air passing through the material to be dried E in the treatment basket 29 has a heating power of approximately 60 ° C. to 70 ° C. The capacity of the heater can be determined by the suction force and drying efficiency of the blower 9 and the type of the object to be dried E, but a variable resistor is provided to make the heating temperature adjustable, and this is adjusted according to various conditions. You may do it.
[0025]
As described above, the drying apparatus 1 according to the present invention includes the heater 7, the flexible pipe 17, the processing tank 21, the primary liquid collection tank 23, the communication pipe 39, the secondary liquid collection tank 41, and the suction pipe in order from the upstream side of the air flow. A series of sealed air passages such as 45 and the blower 9 are formed, and a treatment basket 29 for placing the material to be dried E is arranged in the middle thereof.
[0026]
Hereinafter, the operating state of the drying apparatus 1 will be described. First, in the initial state, the heater 7 and the blower 9 in the control panel 11 are turned off, and the cocks 38 and 44 provided in the primary drain pipe 37 and the secondary drain pipe 43 are closed. .
In this state, the lid 13 is opened, and the processing rod 29 is taken out from the main body container 5 with the handle 28. An appropriate amount of an object to be dried E such as an electronic component is put in the treatment basket 29 and placed on the packing 27 again. At this time, since the lower end of the treatment tank 29 is in close contact with the packing 27, the circulation between the treatment tank 21 and the primary liquid collection tank 23 is possible only through the inside of the treatment bowl 29.
[0027]
The lid 13 is closed and the heater 7 and the blower 9 are switched on. The blower 9 sucks the air in the secondary liquid collecting tank 41 and the primary liquid collecting tank 23 and exhausts it from the exhaust pipe 47. Therefore, the inside of the primary liquid collection tank 23 becomes a negative pressure and acts on the water existing between the objects to be dried E in the treatment tank 29 to suck it. The water existing between the objects to be dried E flows downward in accordance with the air flow, and falls and accumulates in the primary liquid collecting tank 23.
At the same time, the air taken in from the air inlet 53 is heated by the heater 7 and sucked into the treatment tank 21 from the inlet 15. The sucked heated air promotes evaporation of water adhering around the object to be dried E, and is discharged into the primary liquid collecting tank 23 as water vapor along with the air flow flowing between the objects to be dried E. A part of the water is cooled in the primary liquid collection tank 23 or the secondary liquid collection tank 41 to become water, and the remaining water vapor is discharged from the exhaust pipe 47 together with air.
[0028]
When the water accumulated in the primary liquid collecting tank 23 reaches the height of the communication pipe 39, the overflowed water flows into the secondary liquid collecting tank 41 and begins to accumulate therein. In the present invention, the primary liquid collecting tank 23 and the secondary liquid collecting tank 41 are thus arranged in series, and the suction pipe 45 is connected from the upper part of the secondary liquid collecting tank 41 to the blower 9. Therefore, the water is prevented from flowing into the blower 9 by mistake, and the blower 9 is protected.
[0029]
When a certain time has elapsed since the start of the drying process, the heater 7 and the blower 9 are switched off, the lid 13 is opened, and the treatment basket 29 is taken out. The water accumulated in the primary liquid collecting tank 23 and the secondary liquid collecting tank 41 is discharged to the outside with the cocks 38 and 44 opened, respectively.
[0030]
【The invention's effect】
As described above, according to the present invention, since the object to be dried E is placed while the air heated by the heater 7 is sucked by the blower 9, the water present between the objects to be dried is the first stage. Then, it is physically sucked and collected in the liquid collecting tanks 23 and 41. Thereafter, moisture present on the surface of the object to be dried absorbs heat from the heated air and evaporates, and as a result, the surface of the object to be dried is dried. Therefore, the drying efficiency is high and the running cost is not incurred. In addition, fine parts of about 0.1 mm can be efficiently dried.
[0031]
Further, since all of the heated air sucked by the blower 9 passes between the objects to be dried, there is very little energy loss, and efficient drying can be performed also in this respect. Further, since a conventionally used drainage filter or the like is not interposed in a series of air flow paths of the drying apparatus, there is little pressure loss, and drying efficiency is also good in this respect.
[0032]
Furthermore, since the drying efficiency is sufficiently good even when the temperature of the heated air is about 60 ° C., the operator is not burned when the processing basket 29 is put in and out. Further, since the treatment basket 29 can be removed and carried, it is possible to easily fill and take out the material to be dried into the container and transfer it.
[0033]
Furthermore, since it has the primary liquid collection tank 23 and the secondary liquid collection tank 41 connected from the place of the fixed height via the connecting pipe 39, the water overflowing from the primary liquid collection tank 23 is taken as the secondary liquid collection tank. Thus, a large amount of water can be stored during the drying operation.
[0034]
Furthermore, since the suction pipe 45 that connects the secondary liquid collecting tank 41 and the blower 9 is connected to the upper part of the secondary liquid collecting tank 41, the drain water does not easily flow into the blower 9.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall appearance of a drying apparatus according to the present invention.
FIG. 2 is a schematic view of the overall mechanism of the drying apparatus of the present invention.
FIG. 3 is a front view of the drying apparatus of the present invention.
FIG. 4 is a side view of the drying apparatus of the present invention.
FIG. 5 is a top view of the drying apparatus of the present invention.
FIG. 6 is a partially cutaway perspective view of a storage trough containing a material to be dried.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drying device 3 Base frame 5 Main body container 7 Heater 9 Blower 11 Control board 13 Cover 15 Introduction port 17 Flexible pipe 19 Partition plate 21 Processing tank 23 Primary liquid collection tank 25 Communication hole 27 Packing 28 Handle 29 Processing bowl 31 Holding member 33 Support net 35 Reinforcement net 37 Primary drain pipe 38 Cock 39 Connecting pipe 40 Protective net 41 Secondary drainage tank 43 Secondary drain pipe 44 Cock 45 Suction pipe 47 Exhaust pipe 49 Heating wire 51 Filter 53 Air inlet E Dry object

Claims (4)

A series of air flow paths having a sealed periphery, a storage body provided in the middle of the air flow path, capable of storing a plurality of objects to be dried, having an air inlet and an outlet, and the air from the storage body Heating means located on the upstream side of the flow path, air suction means located on the downstream side of the air flow path with respect to the storage body, and between the storage body and the air suction means and from the object to be dried possess a liquid up tank that is used to hold water,
The storage body is located inside the main body container, the main body container is separated into a processing tank and a liquid collection tank by a partition plate having a communication hole, and the outlet end portion of the storage body has a communication hole of the partition plate. A passage that communicates with the heating means is connected to the treatment tank side, and a passage that communicates with the air suction means is connected to the liquid collecting tank side. A drying apparatus for electronic parts and the like.   2. The electronic component according to claim 1, wherein the storage body is a portable container body having an upper part opened and a net provided at the lower part, and the object to be dried can be held on the net. Etc. Drying equipment. The liquid collecting tank is provided outside the liquid collecting tank in the main body container, and has a connecting pipe that communicates with the other liquid collecting tank from a certain height of the liquid collecting tank in the main body container. A drying apparatus for electronic parts or the like according to claim 1 or 2 . 4. A drying apparatus for electronic parts and the like according to claim 3, further comprising a suction pipe extending from an upper part of said other liquid collecting tank to said air suction means.

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