CN101776374B - Closed type drying device - Google Patents

Abstract

The invention provides a closed type drying device. The device is used for drying a workpiece after the workpiece is immersed into a solvent and is characterized in that the part in which solvent steam flows during drying is formed into a closed mechanism insulated from the outside; and besides, the closed mechanism is open to the outside when the workpiece is taken out and the periphery of the closed mechanism is covered by cryogenic cooling troughs to form a structure. Through the closed type drying device, the solvent can be recovered, dosage of the solvent is greatly reduced and the cost is reduced, and the amount of discharged solvent is reduced and the pollution of the solvent to the environment is reduced.

Description

Closed type drying device

Technical field

The invention provides a kind of mainly towards electronics, precision optical machinery and automobile relevant enterprise employed clearing and drying device in the manufactured parts operation.

Background technology

As the countermeasure that reduces solvent, the general mode that the solvent vapo(u)r that is exposed in the atmosphere is partly cooled that adopts.In general, it is higher that the height of cool position is compared the width of groove, but only can't reach the effect of good reduction quantity of solvent by these, and to this, the present invention has adopted effective mode.The cooling medium that will change into by fluorine series by the indirect type of cooling that water cools off directly cools off, thereby is easy to realize 5-15 ℃ of cooling.In addition, if only for simple cooling, use the refrigerator of ultralow temperature just passable, still, because the problem that price is chatted after reaching, refrigerator is also impracticable.About cooling off local height, general equipment be depth 0.8-1 doubly, reach 1.5 times, even reach more applicable about 3 times.And the equipment that utilizes these technology to produce, although also can reach certain cooling effect, but, the equipment of selling on the market at present is very large on the consumption of solvent, compare with equipment of the present invention, the consumption of its solvent will exceed about 10 times, even technology recited above is made up utilization, also is difficult to about 3 times of consumption that consumption with solvent is reduced to present device.

In addition, generally adopt change structure so that drying tank seals fully at present, come the mode of the steam of recovery section solvent by vacuum drying.Although this mode can reduce to the steam in the drying tank extremely low degree,, the solvent vapo(u)r in the vavuum pump institute Exhaust Gas only has 99% to be recovered, in addition 1% by the exhaust consumption of vavuum pump, consumption can be described as quite large.The equipment that this mode is produced aspect the solvent-oil ratio is being more than 10 times of present device.

In recent years, the K company of Japan, the mode by vacuum drying has remedied above-mentioned shortcoming, has released the product that adopts the mode of storing Exhaust Gas, approaches with the present invention on the consumption of solvent.But, although consumption and present device are about the same, can owing to its complex structure, expensive, generally the price than same category of device exceeds 3-6 doubly.And owing to basically carry out vacuum drying, to some workpiece, it is difficulty that the box-shaped workpiece that particularly is easy to store liquid is dried, thereby sometimes because prolong drying time, has to use other drying modes instead.

Although theoretically, vacuum drying can reduce consumption dramatically,, but need to improve the vacuum-evacuate rate for this reason, thereby exist the stored position, price of the gas of discharge, because evacuated time prolongs problems such as ground being given birth to rate of production and marketing, so practical function is not undesirable.

And, in addition, the warm braw drying mode of sealing (also having adopted this mode in this programme) can reduce the consumption of solvent fully in addition, can be in this case, because the internal temperature of dry slot when groove is opened, is accompanied by the outflow of groove internal solvent steam about-10 ℃, the consumption of solvent can reach at most 10 times of the present invention, minimumly also will reach about 3 times.In addition, as realistic problem, after the temperature of drying tank reduces, the dewfall phenomenon can appear when taking out workpiece, temperature generally should in 5-10 ℃ scope, so, also can consume the 2-3 solvent doubly of the consumption of internal temperature in-10 ℃ of above-mentioned dry slot.And present device, also can reach about 25 ℃ when after the drying tank oven dry, cooling off and (can regulate), then, by cooling bath the time, the air chance cold air that cleans in the basket exchanges, thereby reduce the solvent vapo(u)r amount that flows out with workpiece, and can make workpiece when taking out by regulating (stopping period in cooling bath is regulated), surface temperature be in not dewfall state.

Fig. 5 is open cleaning machine in the past.

Basket is cleaned in 2 expressions, 11 expression cryovials, 14 expression moisture separators, 19 expression ultrasonic wave oscillators, the distillatory heater of 20 expressions, 50 expression high concentration solvent vapo(u)rs, 51 expression solvents.

Manual operations will be cleaned basket order according to the first groove, two grooves, three-flute and will be immersed in the rinse bath.Workpiece takes out under the state of heating after solvent vapo(u)r heating in the last three-flute, and is natural drying.

For this reason, the solvent that is stained with can discharge in atmosphere on the cleaning basket in operation.The object of the boxed-section shape of resin material particularly, liquid holdup are in the inside, space, and the consumption of liquid can be a lot.

And the height of the H cool position of expression moves in order to make the cleaning basket in the drawings, and the cool position height can not be too high, and the vapour concentration of topmost can not reduced.The vapor volume that flows into atmosphere can not be ignored.

General equipment is to use water cooling in addition, in order to prevent freezing of sealing, is approximately higher than 5-10 ℃ before and after the cooling water temperature in the sort of situation.

The equipment of the cooling liquids such as direct employing fluorine also has, and bottom line is at-15 ℃.The cooling tube height can shorten, but also cannot say effectively method.

Fig. 6 is general sealed vacuum cleaning machine structure

The 2nd, clean basket, the 16th, fluid storage tank, the 61st, condensed device, the 3rd, loam cake, the 17th, solvent circulating pump, the 62nd, vavuum pump, the 11st, cryovial, the 18th, filter, the 63rd, exhaust, the 12nd, recover, the 19th, the ultrasonic wave oscillator, the 64th, to distiller.

Open behind the top switching regulator lid cleaning basket that is placed with workpiece is put into groove, shut in the switching regulator lid pit and be sealing state.

By solvent pump the cleaning fluid in the hopper is sent in the rinse bath, utilized the method for ultrasonic wave and so on to clean, cleaning is sent cleaning fluid in the hopper back to by pump after finishing again.

Then use the heating means of solvent vapo(u)r etc. carried out enough heating to workpiece, after the heating by vavuum pump to carrying out vacuum drying work in the rinse bath.In the time of this in order to ensure can not leak-off steam in the sealing groove in the vacuum drying work operation middle slot.

Also have the exhaust that contains solvent vapo(u)r of vavuum pump will be by recovery after the condensed device liquefaction of low temperature, the exhaust major part of low concentration will be recycled in the solvent in the other accumulator tank.The rate of recovery of general this method reaches more than 95%.

But, if reclaim 99.5%, miss 0.5%, the quantity of steam when Steam Heating also will become very important amount when increasing.

With the consumption of the cleaning machine of hydrocarbon series solvent per hour be 1 liter and consumption will be higher than the former when allegedly using the solvent of salt prime system row 5-7 doubly.

Fig. 7 is above-mentioned improved device, should be can control solvent-oil ratio to reach minimum device, and the K company of Japan is with its practical having embodied.

The 61st, condensed device, the 62nd, vavuum pump, the 65th, the steam retainer, the 66th, expand.

During Steam Heating or the exhaust of the vavuum pump during vacuum drying be stored in and be referred to as in the retractile steam retainer, do not flow out in the atmosphere fully.

So consumption is the steam of the trace in the rinse bath that only has behind the vacuum attraction, the following possibility of the present invention is arranged also in theory.

Yet since the volume of steam retainer in the practicality very large be irrational, the vacuum of rinse bath is poorly fallen, so be considered to consumption and level error of the present invention is few.

But the cost of this technology is very high.Because used the devices such as steam retainer and vavuum pump, will spend quite high price, will exceed by contrast about 4 times of cost of the present invention.

Summary of the invention

The present invention is large in order to solve the used solvent-oil ratio of in the past existing cleaning, equipment manufacturing cost is high, the problems such as the comparatively serious and dewfall of environmental pollution produce, after having used equipment of the present invention, since the consumption of solvent can be less to can uncared-for degree (equipment is tens of before only having/below one), so, with regard to price problem and the toxicity welding problem that does not have solvent.Factory can according to the needs selective solvent freely of oneself, simultaneously, can also by reducing the consumption of solvent, come for to make huge contribution as the environmental problem of global problem.

1. drying device, it is after workpiece is immersed in solvent, carry out dry device, the part that solvent vapo(u)r flows into when drying forms the closure mechanism that is hedged off from the outer world, in addition, this closure mechanism open to the external world when taking out workpiece, also being covered by the cooling bath of low temperature on every side of this closure mechanism and form structure.

Another preferably technical scheme be: the mechanism that the 1st described device also has by removing moisture etc. the material that reclaims from retracting device makes solvent reclamation, with the cycling mechanism of the solvent after the regeneration to the rinse bath circulation, also form the closure mechanism that cuts off with the external world for this regeneration cycle path.

Another preferably technical scheme be: in the 1st described device, in covering the cooling sink section of described closed area, have the lid mechanism of open and close type.

Another preferably technical scheme be: in the 1st described device, in covering the cooling sink section of described closed area, have the cooling end of the degree of depth more than 1.2 times of minor face of the peristome of cooling bath.

Another preferably technical scheme be: in the 1st described device, described retracting device and cooling end use the Cryo Equipment below-10 ℃.

Another preferably technical scheme be: in the 1st described device, consist of the lid of a part of dry slot of described closed area by mobile the airtight of dry slot that carry out.

Another preferably technical scheme be: in the 1st described device, in the time of have before workpiece takes out, being detained to cooling sink section, rotational workpieces and the rotating mechanism that cleans basket.

Another preferably technical scheme be: in the 1st described device, have the mechanism that presses of the above brute force lid of 150kg, this mechanism be used for preventing because of the solvent vapour of workpiece when dry press the lid that causes rising, keep air-tight state.

Another preferably technical scheme be: in the 1st described device, about the liquid bath that returns of the solvent of liquid being supplied with rinse bath, have the mechanism that the hydrorrhea in the recyclable groove goes out a stream part, carry out easily the micrometric measurement of the consumption of solvent.

Be that the solvent consumption once of every use freon series is that the consumption of solvent reduced to about 1/12nd 24.64cc and open cleaning machine were in the past compared according to the experimental result that studies machine.This time above-mentioned the 8th the mechanism's prediction that presses of appending in the technical scheme preferably reduces to 1/2nd to 1/5th with solvent-oil ratio.

Cleaning machine carries out the fan sealing device 21 of fan 13 of warm braw oven dry and the recover 12 that sealing circulation canal 51,52 materials that flow out reclaim forms by workpiece being immersed in the rinse bath that cleans in the solvent liquid and the warm braw drying tank of workpiece oven dry being made the cleaning-drying groove 6 that unites two into one and be equipped with to workpiece.

Cleaning-drying groove 6 machines, fan sealing device 21, recover 12 is housed warm braw sealing circulation canal 51,52 when the lower position 1a of the arrival of the workpiece on the lifting support 1 lifting support 1, will isolate fully with outside air, make all-sealed structure.And, the liquid that recover 21 reclaims is by seal channel 56, after moisture separated, resulting solvent was connected with water-separator 14 in turning back to hopper 16 by seal channel 61, and this operation also is hermetically-sealed construction complete and that outside air is isolated fully.

After the cleaning of finishing workpiece is dried fully, the rising lifting support, remove the sealing state of cleaning-drying groove, take off the workpiece that is fixed on the lifting support 1, and cleaning-drying groove 6 tops can be had enough height, the sub-cooled groove 5 that cooling coil 11 is housed covers, so, when lifting support 1 rises, the airborne most of solvent vapo(u)r that flows out along with 1 grade of workpiece of lifting support is recycled in the sub-cooled groove 5, the groove that is used for recovery liquid 31 inflow closed conduits 55 by cooling bath 5 bottoms are delivered to water-separator 14, carry out liquid moisture from, the solvent that extracts turns back in the hopper 16 by seal channel 61.

Description of drawings

Fig. 1 is the structural map of apparatus of the present invention:

This device example is in order to remove take the less cleaning materials of oil content as object, so the distilling machinery of simple construction is housed.Common distillation equipment is housed in the general device in addition.The solvent aspect will be for using the lower and oil content dissolving freon series solvent seldom of boiling point.

Fig. 2 is the action specification figure of apparatus of the present invention.

Fig. 3 is the key diagram that presses structure;

Fig. 3-the 1st, the figure when plane moves, Fig. 3-the 2nd, the figure when plane presses, Fig. 3-the 3rd presses structure sectional view.

Fig. 4 is the structure key diagram of fluid storage tank.

Fig. 5 is the structure key diagram of the in the past open cleaning machine of type.

Fig. 6 is the structure key diagram of general sealed vacuum drying cleaner in the past.

Fig. 7 is the complete sealed cleaning machine structure key diagram of conventional art modified form.

The specific embodiment

Fig. 1 is the organigram of embodiments of the invention.

The equipment of Fig. 1 is take the cleaning materials of removing a small amount of oil content as object, additional easy distiller, the present invention is that general device is added separately distilling apparatus, be for the boiling temperature of solvent lower, used solvent is HFC-4310, HFC-365, HCFC-225, HFE-7000, and oil content is dissolved less and equipment design.

1. being rinse bath lid 1, is driving mechanism, is the frame that can move up and down.

This groove lid 1 has primary importance and the second place.To be groove lid 1 be the location status to 1b at down position at first to primary importance.The second place is the position of 1a, is from lower to upper to the state position of 1a from the 1b state position of primary importance.

Be the state of 1b at down position, rinse bath lid 1 is close to the upper end of the framework of cleaning-drying groove 6, makes 6 sealings of cleaning-drying groove.Also have rinse bath lid 1 when centre position 1a stops, the solvent vapo(u)r that cleans basket 2 on this position descends under the effect of cooling tube cooling.It is fixing below the elasticity O type adhesive tape of above-mentioned said sealing usefulness (without diagram) covers 1 with cleaning.Cleaning-drying groove 6 under this action is sealing state.Use if necessary in the situation of rotary-cleaning basket, the rotating mechanism of basket is arranged on the upside of rinse bath lid 1.Rotating mechanism, rotation motor are vertically fixed on the frame that rinse bath covers 1 upside, and rotating shaft connects rinse bath lid 1, and downside is equipped with sealing ring, keep sealing when axle rotate, and the bottom of axle is scroll bar, and the turbine that cleans the basket axle head meshes.

2. be that the cleaning basket of square or the circle of rotation are cleaned basket, coat or make with web plate with silk screen that cleaning workpiece is placed on the inside.In addition, suitable mechanism can make to be cleaned basket and puts into and deviate from (example: clean basket or circularly bar-shaped minor axis is arranged in the middle of cleaning the basket two ends, clean the cradle structure of oblique notching below the cover plate 1, can fixingly clean basket) when rinse bath lid 1 drops to the 2b extreme lower position, can flood and clean and drying operation.

3. be loam cake 3a and loam cake 3b, can be separately on framework 7 move freely to the direction of 3A and 3B that under the state of closing, cooling bath 5 cuts out work fully, but closes the sealing that is not tight, does not seal fully because do not need.

5. be by 3a, 3b, 1b and the 7 sub-cooled grooves that surround.During work, except the lid of upside, sub-cooled groove 5 has formed the structure of general sealing.

6. be by 1b and the 8 cleaning-drying grooves that surround.The cleaning of workpiece and drying operation be at the cleaning-drying groove, and groove bottom has been installed the pipe arrangement that the ultrasonic wave that cleans usefulness is sent out Vibration Box and distillatory heater, various connection usefulness, and is fully airtight, makes when workpiece cleaning and outer gas is isolated fully, carries out airtight cleaning.

7. be the framework of cooling bath 5, be fixed on the pallet of body that the notch of bottom and rinse bath 8 housings are being fixed under the air-tight state fully, form the groove of #31 around rinse bath 8 upper outside and the cooling bath bottom.

8. be the rinse bath housing, be fixed on the pallet of body by 7.

11. be cooling bath 5, in be equipped with the cooling usefulness cooling coil.The up and down height of cooling tube will be guaranteed, and have the structure of corresponding ultralow temperature.Refrigerator is installed in the interior cooling tube of body pallet.Refrigerant is by refrigerator direct circulation refrigeration in the cooling tube.

12. be recover, the cryovial similar to 11 arranged.So that the solvent vapo(u)r of being sent here by the #52 pipe arrangement cools off.Solvent vapo(u)r is sent into the recover that ultralow temperature cools off from pipe arrangement #52, and condensed solvent enters water-separator by the #56 pipe arrangement, and a small amount of solvent vapo(u)r enters the pipe arrangement of #52 by recover.The pipe arrangements such as #52, #53, #56 all directly are fixed on the outside of cooling bath 7.

13. be that workpiece is dry, be by pressure fan, the warm air generating means that the heater that warm air occurs forms is finished.Heater and blower fan are contained in sealing 21 chests, fully sealing and outer gas barrier.

14. be the moisture separator in the liquid of solvent, utilize the difference in specific gravity of water and solvent to carry out machinery and separate.

16. be fluid storage tank.In the fluid storage tank of cleaning agent, during except washing and cleaning operation, common contain solution here.

17. be solvent circulating pump.The circulation of solvent and supply and discharge opeing according to the control of #81 to the magnetic valve of #85, realize with a solvent pump 17.

18. be filter.Purify cleaning fluid and pass through solvent circulating pump 17 in washing and cleaning operation, often solvent is carried out circulating filtration and purify.

19. be the ultrasonic wave oscillator.Above cell body 8 bottoms that are contained in.

20. be the distillatory heater of solvent, be contained in cell body 8 bottoms below, usually do not adopt during operation, use in case of necessity manual starting.

21. be by the chest 21 of fan portion sealing that fan portion is fully airtight.

#31 is the recovery approach around cleaning-drying groove 6.The liquefaction solvent steam of lime set etc. is deposited in the #31 the inside by pipe arrangement #55 inflow water-separator 14 on the condenser pipe in the cooling bath.

#51 to #53 is desiccant air-supply pipe arrangement.

#55 and #56 are the pipe arrangements that liquefaction solvent reclaims solvent.

#71 is the air pipe arrangement of cleaning-drying groove 6 and hopper 16, and other pipe arrangement all is the pipe arrangement that solvent is used.

#81 and #85 are the magnetic valves of automatically controlling.

#86 and #87 are the hand-operated valves of manually controlling.

Fig. 3 presses mechanism:

7a is the stopper that determines excellent 23 upper-lower positions of revolution, is fixed in four metal places of 7b and can adjusts above-below direction.

7b is fixed on cooling bath framework 7 lower curtates.

The X-type shapes that 23 revolution rods are comprised of four rods, the screw by 23 interior weeks make and press that ring 26 and revolution are excellent can turn round linking together freely.

24 revolution stoppers 1 are the stoppers that determines excellent 23 rotary positions of revolution, are fixed on above 1 in four metal 7b.

25 revolution stoppers 2 are the stoppers that determine excellent 23 rotary positions of revolution, are fixed on above the lifting frame 1.

26 to press ring be to support by 47 bearings to press fulcrum 45 and make and press ring and can turn round freely, and screw is used in the periphery of below 26a, and the structure of gear is used in the periphery of top 26b.

45 to press fulcrum be a metal derby that is fixed on the rinse bath lid 1, the state that is all played by lifting shaft 46 generally speaking.

46 lifting shafts are the axles that support organism frame and can keep above-below direction to move.

47 bearings are to keep freely rotating by pressing fulcrum 45, and the periphery is by pressing revolution that ring 26 keeps it freely.

48 Compress Springs are to be contained in to press ring 26 the insides, make revolution rod 23 toward pressing down with suitable load again.

49 to press gear be to be fixed on the below that presses axle 50, and the gear that presses ring 26 matches.

50 to press axle be to support organism frame and can keep turning round freely axle, by gear etc. the drive source of motor and so on is bonded.

One, the present invention's cleaning, drying, cooling and the operation of taking out:

1. matting:

As shown in Figure 2, the cleaning basket 2 that workpiece is housed is suspended on the elevation and subsidence mechanical arm.The operator presses " cleaning beginning " button that is arranged on control panel, and cleaning just begins to carry out automatically.Loam cake 3a and 3b open each to 3A, 3B direction, rinse bath covers 1 decline primary importance, namely drops to the position of 1b.In the 1b position, rinse bath lid 1 is pressed onto the upper end of rinse bath framework 8, and airtight formation cleaning-drying groove 6, air-tight state of the present invention refer to be in the state of blocking with outside air.Simultaneously solvent delivery pump entry into service is transported to cleaning-drying groove 6 with solvent by valve #84, filter 18, solvent delivery pump 17 and valve #82 from fluid storage tank 16.At this moment liquid is cleaned by filter, because valve #85 is open mode, the air in the cleaning-drying groove 6 is squeezed fluid storage tank 16.Be provided with liquid level sensor in the cleaning-drying groove 6, stop behind the liquid level liquor charging of setting, be in operation, the switch by valve makes liquid flow form circulation later on.That is to say that valve #81 opens, valve #84 closes and makes rinse bath 6 interior liquid return rinse bath 6 by filter 18, forms decontamination cycle.Until clean complete before, keep this state always.During cleaning, solvent route is: rinse bath 6-#81-18-17-#82-6.Air is travelled to and fro between between 6 and 16 by #71 (comprising #85) when the feed liquor of solvent and discharge opeing.Approach during feed liquor is: 16-#84-18,17-#82-6; Approach during discharge opeing is 6-#81-18,17-#83-16.

As shown in Figure 2, when workpiece was in the position of 2b, the workpiece complete wetting was in the middle of liquid.Then, clean beginning, ultrasonic wave oscillator 19 starts, and keeps the cleaning of cleaning fluid in the state of solvent circulating filtration.In fixing time, timer keeps such cleaning state, until matting finishes always.Matting is transferred to drying process after finishing.After cleaning was over, maneuver was carried out the discharge opeing operation, namely opened valve #83, and shut off valve #82 makes cleaning fluid get back to fluid storage tank 16 from rinse bath 6 by filter 18.At this moment, liquid all is cleaned by filter, and because at this moment valve #85 opens, and the air in the fluid storage tank 16 can be discharged in the rinse bath 6,6 and 16 all are in the state of blocking with outside air.Timer then after, the end of job of defined, pump shutdown, valve Close All.

2. drying process:

In the latter half of warm braw drying that just begins of above discharge opeing operation.When discharge opeing began, the heater in the warm air fan 13 (there is mark 13 and 6 position in figure, connect by the #51 pipe arrangement) had just begun preheating.Start warm air fan 13, send warm braw.Blow warm braw by pipeline #51 to the cleaning basket 2 of 2b position, make the solvent evaporation of cleaning workpiece in the basket, the solvent of evaporation is delivered to recover 12 by pipeline #52.Owing to low temperature (directly cool off freezing pipe arrangement with refrigerator and produce low temperature), make the warm braw that contains solvent vapo(u)r almost become the cold wind of bone dry at recover 12, return fan 13 by pipeline #53, form circulation.

In addition, at this moment the solvent vapo(u)r of condensation liquefaction is delivered to water-separator 14 by pipeline #56, gets back to fluid storage tank 16 by the proportion centrifugation via solvent conduit #61.In pipeline #52, be provided with the sensor (not shown) of solvent strength, also have in addition corresponding timer.Can decide according to the concentration value of setting or timing and when finish.At this moment, workpiece, cleaning basket 2, dry slot 6 reach the state that is dried that all is in solution from pipeline #51 to #53.

In this operation, fan hermetic unit, cleaning-drying groove 6, recover 12 and (claim that later on these parts are dry path) from pipeline #51 to #53 and all keep and the extraneous fully air-tight state of isolation.

In addition, separator 14, fluid storage tank 16, pipeline #56, #61 and other pipelines also are in fully airtight state with the external world, and the solvent vapo(u)r between them does not flow out fully.Although workpiece and cleaning basket 2 were warm warm by warm braw when drying was finished, the air in recover 12 paths also remains on the drying regime that contains few solvent vapo(u)r.

Moreover before drying was finished, timer turn-offed the heater of warm air fan 13, because the effect of recover 12 allows wind turn cold, cold wind is blowed to workpiece, makes it be cooled to suitable temperature.

3. refrigerating work procedure:

Drying is cooled off after finishing, and carries out the taking-up operation of workpiece.Refrigerating work procedure carries out in cooling bath.Cooling bath is in the state of ultralow temperature (temperature is-10 ℃---20 ℃) because of the effect of cooling coil.Lifting moves to the second place with the rinse bath lid 1 that cleans basket 2 from the bottom up by primary importance, it is rinse bath lid 1 is moved to 1a by position 1b rising position, clean basket 2 and also move to position 2a by position 2b, second position at rinse bath lid 1 stops the regular hour, say on the solvent consumption that the time, the longer the better, but because the relation of dewfall and operating efficiency, be about 30 seconds, to reach the effect of cooling.But also relatively good at long cooling effect of the time of halted state.For the external world that remaining solvent vapo(u)r in the dry path that comprises in the rinse bath 6 is not taken to as much as possible finally open closing cap to lead to goes, the speed that moves up and down of control is about 10cm/ below second as far as possible lentamente.Position at 1b stops the regular hour, makes the air cooling of cleaning in basket 2 and the workpiece, has so more reduced the remaining little by little amount of solvent vapo(u)r.

" cooling " refers to, not only only cools off and clean basket, but by the open-close lid above the cooling end, make the solvent vapo(u)r that is contained in the cleaning basket not overflow to as far as possible the outside.By ultralow temperature, be contained in the saturated vapour pressure that cleans the solvent vapo(u)r in the basket and reduce as far as possible, it is excessive in air to reduce as far as possible solvent vapo(u)r, and this ultralow temperature plays the effect of cold sealing.

Cooling body can the overcoat dwelling at the peristome of the rinse bath lid (1) of primary importance, and in rinse bath lid (1) is moved to the process of the second place from the bottom up by primary importance, cool off.

In addition, because the air in the dry path in the cooling bath 5 also is cooled, therefore further reduced the concentration of solvent vapo(u)r.The groove #31 that the liquefaction solvent steam of coil pipe 11 condensations of being cooled arranges along the bottom of cooling bath 5 is drawn out to water-separator 14 through pipeline #55.The recovery solvent that is sent to water-separator 14 utilizes the proportion centrifugation only solvent to be got back in the reservoir 16 from pipeline #61, the height that pipe arrangement section has in the cooling bath is 0.6-0.7 rice, the size of the short part of peristome and the ratio of height are important, and this highly is more than 1.2 times of minor face of the peristome of cooling bath.

4. taking-up operation

Through after the certain hour, loam cake 3a.3b moves to 3A, 3B direction respectively, opens cooling bath.Rinse bath lid 1 rises to topmost with cleaning basket 2 in this state, and cleaning basket 2 can be removed. Loam cake 3a, 3b oppositely return, and cooling bath is closed, and have finished the washing and cleaning operation of a circulation.

Two, distillation action

The operation of during the distillation operation liquid in the fluid storage tank 16 being boiled dry in cleaning-drying groove 6.With manual method the liquid in the fluid storage tank 16 is all transferred in the cleaning-drying groove.After transfer is finished, press and boil button dry, the distillation operation begins.Heater 20 is connected the beginning heating liquid, and warm air fan 13 also starts, and is in the state of drying operation, and solvent vapo(u)r is delivered to recover 12.Condensing, the liquefaction of solvent vapo(u)r after water-separator 14 is removed moisture, is recovered in the fluid storage tank 16 in recover 12.When the liquid level of cleaning-drying groove 6 dropped to certain position, the distillation operation had also just been finished; The eliminating of solvent liquid is taken out by valve #87.Remaining eliminating liquid can further separate oil content with other distilling apparatus, reclaims solvent.

Fig. 3: be to press mechanism

1, general state

Press beyond the state and during the lid lifting such as Fig. 3-1 revolution rod 23 on 1 li on rinse bath lid, keep and 25 turn round stoppers 2 contacted states.

Rinse bath lid 1 is the ledge 46a of lifting shaft 46, presses the state that the inboard osculum part 45a of fulcrum 45 slings, and makes very close to each other combining above 45a below and the 46a

2, the decline state of rinse bath lid 1

Drive unit drive by motor and so on presses fulcrum 45 declines, and rinse bath lid 1 also descends together simultaneously, and 1 arrival clean dry groove 6 stops afterwards.

The gap can occur in the above-below direction of 45a and 46a when pressing fulcrum 45 and dropping to certain position, stops behind the state such as Fig. 3-3.The upper-lower position that presses in this state in addition stopper 7a and revolution rod 23 can produce the such gapped state of Fig. 3-3.

3, press action

Also begin revolution along with the revolution that presses axle 50 presses gear 49 and presses ring 26, utilize the frictional force of Compress Spring 48 to make revolution rod 23 toward the P direction revolution of Fig. 3-2, revolution excellent 23 stops when forwarding the state of revolution stopper 24 as Fig. 3-2 to.

Then press axle 50 and press ring 26 and continue revolution, the screw of periphery will be turn state the revolution rod is pushed up toward the top when 26a turn round.

Revolution rod 23 rises to the position that presses stopper 7a to be stopped, and screw 26a continues revolution to be made and press stopper and produce strength and up push up.

Utilize the reaction of the strength produce to make revolution rod 23 from the place of 7a toward lower stress, press fulcrum 45 and make rinse bath lid 1 toward pressing down by pressing ring 26 and bearing 47.

Press axle 50 and continue within a certain period of time revolution, still construct because of the convey force limit of clutch that driving structure part will be set and so on, so the pressure more than certain strength can not produce load.

4, press return action

The counter-rotating that presses action along with the reverse that presses axle 50 make the initial power that presses become 0 press remove after revolution rod 23 will turn round toward Fig. 3-2R direction, stop under the state of 25 revolution stoppers, 2 arrival Fig. 3-1, the sensor that then turns round the rinse bath lid 1 of excellent 23 usefulness is the ON state, presses axle 50 after the institute that has arrived timer fixes time and quits work and press return action and finish.

The explanation of Fig. 4

#95 and #96 are manually-operated gates.

#96 is closed condition and does not use generally speaking.

Carry out liquid make-up from liquid injection port 101 again after when measuring liquid-consumed amount, will opening in advance #96, be stopping infusion after the overflow status until liquid exceeds 103 plane, then wait until the liquid that overflows flowed after again valve-off #96 then begin to test.

Experiment finishes the back and confirms that from 102 pairs of liquid measures of liquid acknowledgement window the liquid after the limit is measured liquid injection port 101 replenishes, and then opens #96 to reclaiming from 103 liquid that overflow.

The consumption that measurement and additional liquid measure by yield just can simply calculate solvent.

Can reclaim solvent by closed type drying device of the present invention, the consumption of decrease solvent is saved cost, and reduces the quantity of solvent of discharging, and reduces solvent to the pollution of environment.

Claims (5)

1. drying device, it is after workpiece is immersed in solvent, carry out dry device, it is characterized in that, the part that solvent vapo(u)r flows into when dry forms the closure mechanism that is hedged off from the outer world, and in addition, this closure mechanism is when taking out workpiece, open to the external world, also covered by the cooling bath of low temperature structure around this closure mechanism; Described low temperature is the low temperature that has used the Cryo Equipment below-10 ℃.

2. device as claimed in claim 1, it is characterized in that, have by dewatered mechanism the material that reclaims from retracting device and make solvent reclamation, with the cycling mechanism of the solvent after the regeneration to the rinse bath circulation, also form the closure mechanism that cuts off with the external world for this regeneration cycle path.

3. device as claimed in claim 1 is characterized in that, in the cooling sink section that covers described closure mechanism, has the lid mechanism of open and close type.

4. device as claimed in claim 3 is characterized in that, in covering the cooling sink section of described closure mechanism, has the cooling end of the degree of depth more than 1.2 times of minor face of the peristome of cooling bath.

5. device as claimed in claim 1 is characterized in that, consists of the lid of a part of dry slot of described closure mechanism by mobile the airtight of dry slot that carry out.

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