CN101303189B - Vacuum drying machine and drying method - Google Patents
Vacuum drying machine and drying method Download PDFInfo
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- CN101303189B CN101303189B CN2007102005870A CN200710200587A CN101303189B CN 101303189 B CN101303189 B CN 101303189B CN 2007102005870 A CN2007102005870 A CN 2007102005870A CN 200710200587 A CN200710200587 A CN 200710200587A CN 101303189 B CN101303189 B CN 101303189B
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Abstract
The invention provides a vacuum dryer which comprises a drying chamber, a loading chamber, an unloading chamber, isolation valves, a material fetching device and an evacuating device. The loading chamber and the unloading chamber are respectively communicated with the drying chamber; the isolation valves are respectively arranged between the loading chamber and the drying chamber and between the unloading chamber and the drying chamber to separate the loading chamber and the unloading chamber from the drying chamber; the material fetching device is rotatablely arranged in the drying chamber; the evacuating device is respectively communicated with the loading chamber, the unloading chamber and the drying chamber and used for independently vacuumizing the loading chamber, the unloading chamber and the drying chamber. The invention also provides a vacuum drying method. The vacuum dryer and the drying method are characterized by good drying effect and high efficiency.
Description
Technical field
The present invention relates to a kind of vacuum drier, it can be used for optical element is carried out drying, the invention still further relates to use this vacuum drier to carry out dry method.
Background technology
The camera lens module is the important component part of optical imaging devices such as camera, video camera, and it comprises multiple optical elements such as lens, optical filter, and it is by changing the imaging effect that the transmission of light in the camera lens module reaches expection.In the assembling process of camera lens module, need earlier to described optical element clean, drying, and then be assembled into the camera lens module, guaranteeing the cleannes of optical element, thereby avoid particle because of optical element surface to be brought into phenomenons such as the image quality that the camera lens module causes is bad, camera lens inefficacy.
Usually, adopt modes such as bake drying, high speed Rotary drying in the described dry run.So-called bake drying is the following and maintenance a period of time of environment that optical element is placed on certain high temperature, with the moisture that adheres on the evaporation optical element.Yet in long bake process, the temperature of optical element raises to make and itself the absorptivity of moisture is raise, thereby causes drying effect not good; In addition, optical element phenomenon such as also can deform because of being heated.So-called high speed Rotary drying is that the centrifugal force that optical element is rotated at a high speed to utilize rotation to produce throws away the moisture that adheres on the optical element, yet this kind method can not reach the effective dry effect for the steam that is adsorbed on optical element fine structure inside.
Vacuum drying can not be subjected to the restriction of above-mentioned high temperature, optical element structure that optical element is carried out drying, it is to be placed on optical element in the confined chamber of vacuum drier and to vacuumize, boiling point with pressure in the reduction confined chamber and then reduction water can evaporate volatilization at a lower temperature thereby make attached to the moisture on the optical element.Vacuum drying guarantees good drying effect when guaranteeing that optical element is not subjected to high temperature to add heat affecting.Yet vacuum drier needs the long time that described confined space is vacuumized, thereby causes drying efficiency lower in dry run.
In view of this, be necessary to provide a kind of vacuum drier and drying means, it can have the characteristics that drying effect is good, efficient is high.
Summary of the invention
To a kind of vacuum drier be described with specific embodiment below, it can have the characteristics that drying effect is good, efficient is high.
A kind of vacuum drier, it comprises: drying chamber, load chamber, the unloading chamber, separation valve door, take out device and air extractor, described load chamber and unloading chamber are connected with described drying chamber respectively; Described separation valve door lays respectively between load chamber and the drying chamber and unloads between chamber and the drying chamber, with load chamber and drying chamber and unloading chamber and drying chamber isolation; Described take out device is rotatable to be arranged in the drying chamber; Described air extractor is connected with described load chamber, unloading chamber and drying chamber respectively, is used for independently load chamber, unloading chamber and drying chamber being vacuumized respectively.And
A kind of vacuum drying method, it comprises step (a)～(f):
(a). air extractor is evacuated to one first vacuum state to drying chamber;
(b). element to be dried is loaded in the load chamber, and air extractor is decompressed to one second vacuum state to load chamber and unloading chamber pumping;
(c). open the separation valve door between load chamber and the drying chamber, take out device is taken the element in the load chamber and is taken to drying chamber;
(d). close the separation valve door between load chamber and the drying chamber, to the load chamber vacuum breaker, element then that another is to be dried is loaded in the load chamber, and air extractor is bled to load chamber and is decompressed to second vacuum state;
(e). open the separation valve door between unloading chamber and the drying chamber, take out device is taken the element in the drying chamber and is taken to the unloading chamber;
(f). close the separation valve door between unloading chamber and the drying chamber, to unloading chamber vacuum breaker and the dry element that finishes of taking-up, air extractor is decompressed to second vacuum state to the unloading chamber pumping again.
Compared with prior art, described vacuum drier and drying means are implemented drying process under vacuum state, and drying effect is good; In the dry run, earlier load chamber is bled on the one hand and be decompressed to one second vacuum state, again load chamber is communicated with drying chamber, carry out drying in the drying chamber element to be dried is taken be taken to, drying chamber is vacuumized on the basis with certain vacuum degree again, thereby shorten the time that vacuumizes; On the other hand when drying chamber carries out drying to element, carry out loading to the load chamber vacuum breaker, once more element to be dried simultaneously and bleed and be decompressed to the operation of second vacuum state, to treat providing element to be dried to drying chamber once more, thereby saved the time, had the high characteristics of drying efficiency.
Description of drawings
Fig. 1 is the structural representation of the vacuum drier that provides of the embodiment of the invention.
Fig. 2 is the cross-sectional view of the load chamber of vacuum drier shown in Figure 1.
Fig. 3 is the structural representation of the vacuum drying machine that provides of another embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
Referring to Fig. 1 and Fig. 2, the vacuum drier 10 that present embodiment provided comprises load chamber 11a and unloading chamber 11b, take out device 12, drying chamber 13, air extractor 14 and separation valve door 15a, 15b.
Described load chamber 11a is a seal chamber, and it is used to accommodate element to be dried 20 as optical elements such as lens, optical filters, to wait to send into described drying chamber 13.Described unloading chamber 11b also is a seal chamber, and it is used to accommodate the dry element 20 that takes out from described drying chamber 13.This described load chamber 11a and the unloading chamber 11b be randomly dispersed in drying chamber 13 around.
Described take out device 12 rotatable being arranged in the drying chamber 13, it can be a telescopic manipulator arm, be used for element to be dried 20 take be taken to load chamber 11a and will be dry element 20 take and be taken to unloading chamber 11b.
Described drying chamber 13 is a seal chamber, and it is used to accommodate and dry described element 20.This drying chamber 13 is connected respectively with load chamber 11a, unloading chamber 11b, and isolates by separation valve door 15a, 15b.
Described air extractor 14 is connected with load chamber 11a, unloading chamber 11b and drying chamber 13 respectively, and it is used for independently load chamber 11a, unloading chamber 11b and drying chamber 13 being vacuumized respectively.This air extractor 14 can comprise a plurality of vavuum pumps that are connected with load chamber 11a, unloading chamber 11b and drying chamber 13 respectively, as water ring vacuum pump, Roots vaccum pump, oil seal type vavuum pump, oil-free dry oil-sealed rotary pump etc.
Described separation valve door 15a, 15b lay respectively between load chamber 11a, unloading chamber 11b and the drying chamber 13, are used for drying chamber 13 is isolated respectively with load chamber 11a and unloading chamber 11b.
To specifically describe a kind of 10 pairs of elements to be dried of this vacuum drier 20 that adopt below and carry out dry method, it may further comprise the steps:
(a). 14 pairs of drying chambers 13 of air extractor are evacuated to one first vacuum state
(b). element to be dried 20 is loaded among the load chamber 11a, and 14 couples of load chamber 11a of air extractor, unloading chamber 11b bleed and are decompressed to one second vacuum state.
At first, element to be dried 20 is put into tray 22, again tray 22 is loaded in the load chamber 11a, then load chamber 11a good seal is utilized 14 couples of load chamber 11a of air extractor, unloading chamber 11b to bleed and be decompressed to second vacuum state later on.The vacuum of this second vacuum state is lower than the vacuum of described first vacuum state.
(c). open the separation valve door 15a between load chamber 11a and the drying chamber 13, take out device 12 is taken the element among the load chamber 11a 20 and is taken in the drying chamber 13.
As load chamber 11a, when unloading chamber 11b is pumped down to described second vacuum state, open the first separation valve door 15a, this moment, load chamber 11a was communicated with drying chamber 13, utilized tray 22 that take out device 12 will be equipped with element 20 to take in the load chamber 11a and got, and be sent in the drying chamber 13.
(d). close the separation valve door 15a between load chamber 11a and the drying chamber 13, to load chamber 11a vacuum breaker, element then that another is to be dried is loaded among the load chamber 11a, and air extractor 14 is bled to load chamber 11a and is decompressed to second vacuum state.
Because load chamber 11a is communicated with drying chamber 13, vacuum in the drying chamber 13 reduces, close the first separation valve door 15a, drying chamber 13 is isolated with load chamber 11a, and then drying chamber 13 can be evacuated to first vacuum state by air extractor 14 once more, and element 20 remained on for first following a period of time of vacuum state, so that element 20 is by fully dry.This moment, can load chamber 11a vacuum breaker so that load element to be dried to load chamber 11a once more, be bled to load chamber 11a then and be decompressed to second vacuum state.
(e). open the separation valve door 15b between unloading chamber 11b and the drying chamber 13, take out device 12 is taken the element in the drying chamber 13 20 and is taken to unloading chamber 11b.
When element 20 by after the abundant drying, open the second separation valve door 15b, unload chamber 11b and is communicated with drying chamber 13 this moment, take out device 12 rotates to towards unloading chamber 11b and the finish tray 22 of element 20 of drying also will be housed take from drying chamber 13 and be taken to the load chamber 11b.
(f). close the separation valve door 15b between unloading chamber 11b and the drying chamber 13, to unloading chamber 11b vacuum breaker and the dry element 20 that finishes of taking-up, air extractor 14 is bled to unloading chamber 11b and is decompressed to second vacuum state.
Repetition above-mentioned steps (c), (d), (e) reach (f), can implement continuously dry.
Vacuum drier that the embodiment of the invention is described and drying means are implemented drying process under vacuum state, drying effect is good; In the dry run, earlier load chamber 11a is bled on the one hand and be decompressed to one second vacuum state, again load chamber 11a is communicated with drying chamber 13, carry out drying in the drying chamber 13 element 20 to be dried is taken be taken to, drying chamber 13 is vacuumized on the basis with certain vacuum degree again, thereby shorten the time that vacuumizes; On the other hand when 13 pairs of elements of drying chamber 20 carry out drying, carry out loading to load chamber 11a vacuum breaker, once more element to be dried simultaneously and bleed and be decompressed to the operation of second vacuum state, to treat providing element to be dried to drying chamber 13 once more, thereby saved the time, had the high characteristics of drying efficiency.
Referring to Fig. 3, another embodiment of the present invention provides a kind of vacuum drier 30, and it comprises: three load chamber 31a, 31c, 31e, three unload chamber 31b, 31d, 31f, take out device 32, drying chamber 33, air extractor 34 and six separation valve door 35a, 35b, 35c, 35d, 35e, 35f.
Described load chamber 31a, 31c, 31e are seal chamber, and it is used to accommodate element to be dried, to wait to send into described drying chamber 33.
Described unloading chamber 31b, 31d, 31f also are seal chamber, and it is used to accommodate the dry element that takes out from described drying chamber 33.
Described take out device 32 rotatable being arranged in the drying chamber 33, it can be a telescopic manipulator arm, is used for element to be dried taken to be taken to load chamber 31a, 31c, 31e and will dry element to take being taken to unloading chamber 31b, 31d, 31f.
Described drying chamber 33 is a seal chamber, and it is used to accommodate and dry described element.This drying chamber 33 is connected respectively with load chamber 31a, 31c, 31e and unloading chamber 31b, 31d, 31f, and isolates by separation valve door 35a, 35c, 35e, 35b, 35d, 35f respectively.
Described air extractor 34 respectively with load chamber 31a, 31c, 31e, unloading chamber 31b, 31d, 31f and drying chamber 33 are connected, it is used for respectively independently to load chamber 31a, 31c, 31e, unloading chamber 31b, 31d, 31f and drying chamber 33 vacuumize.This air extractor 34 can be a plurality of vavuum pumps, as water ring vacuum pump, Roots vaccum pump, oil seal type vavuum pump, oil-free dry oil-sealed rotary pump etc.
Described separation valve door 35a, 35c, 35e, 35b, 35d, 35f lay respectively at load chamber 31a, 31c, 31e, between unloading chamber 31b, 31d, 31f and the drying chamber 13, be used for drying chamber 33 is isolated respectively with load chamber 31a, 31c, 31e and unloading chamber 31b, 31d, 31f.
When adopting 30 pairs of elements to be dried of this vacuum drier 20 to carry out drying, the load chamber 31a of vacuum drier 30,31c, 31e and unloading chamber 31b, 31d, 31f arrange in pairs or groups in twos (as, load chamber 31a and unloading chamber 31b collocation, load chamber 31c and unloading chamber 31d collocation, load chamber 31e and unloading chamber 31f collocation) three load/unload chamber groups of formation, load chamber that these three load/unload chamber groups are included and unloading chamber (as, load chamber 31a and unloading chamber 31b, load chamber 31c and unloading chamber 31d, load chamber 31e and unloading chamber 31f) mode of operation and the load chamber 11a of vacuum drier 10 with to unload chamber 11b identical.
Preferably, the order to drying chamber 33 feed/discharging of described three load/unload chamber groups staggers in time successively, when a load/unload chamber group (for example, load chamber 31a and unloading chamber 31b) drying chamber is supplied, during discharging, two other load chamber group (load chamber 31c and unloading chamber 31d, load chamber 31e and unloading chamber 31f) then load element to be dried, vacuumize and the operation of vacuum breaker, thereby alternately provide element to be dried to drying chamber 33, uninterruptedly providing under the prerequisite of element to be dried to drying chamber 33 in assurance, is that each load chamber group is reserved more charging, vacuumize and time of vacuum breaker.
Be understandable that the total number in the load chamber of described vacuum drier, unloading chamber is not limited to above-mentioned two or six, it also can comprise other numbers or the more load chamber and the unloading chamber of more number, as four, eight, ten etc.; Described load chamber both can be randomly dispersed in (non-uniform Distribution) around the load chamber, also can be evenly distributed on around the drying chamber; And described unloading chamber can be identical with the load chamber structure, and described unloading chamber and load chamber can be changed use mutually, also is about to former load chamber as the unloading chamber, and with former unloading chamber as load chamber.
Need to prove, the vacuum of described second vacuum state is not limited to be lower than the vacuum of first vacuum state, the vacuum of this second vacuum state can be identical with first vacuum state or be higher than first vacuum state, thereby can promote the efficient of drying process more.
In addition, those skilled in the art also can do other and change in spirit of the present invention, as the number of suitable change load chamber, load chamber with respect to the position position distribution of drying chamber etc., as long as it does not depart from technique effect of the present invention and all can.The variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (8)
1. a vacuum drier comprises drying chamber, it is characterized in that this vacuum drier also comprises:
Load chamber and unloading chamber, described load chamber and unloading chamber are connected with described drying chamber respectively;
Separation valve door, it lays respectively between load chamber and the drying chamber and unloads between chamber and the drying chamber, with load chamber and drying chamber and unloading chamber and drying chamber isolation;
Take out device, its rotatable being arranged in the drying chamber; And
Air extractor, it is connected with described load chamber, unloading chamber and drying chamber respectively, is used for independently load chamber, unloading chamber and drying chamber being vacuumized respectively.
2. vacuum drier as claimed in claim 1 is characterized in that, described load chamber and the unloading chamber be evenly distributed on drying chamber around.
3. vacuum drier as claimed in claim 1 is characterized in that, described take out device is the telescopic manipulator arm.
4. vacuum drier as claimed in claim 1 is characterized in that described air extractor comprises a plurality of vavuum pumps.
5. vacuum drier as claimed in claim 4 is characterized in that, described vavuum pump is water ring vacuum pump, Roots vaccum pump, oil seal type vavuum pump or oil-free dry oil-sealed rotary pump.
6. one kind is utilized the drying means of vacuum drier according to claim 1, and it comprises step:
(a). air extractor is evacuated to one first vacuum state to drying chamber;
(b). element to be dried is loaded in the load chamber, and air extractor is decompressed to one second vacuum state to load chamber and unloading chamber pumping;
(c). open the separation valve door between load chamber and the drying chamber, take out device is taken the element in the load chamber and is taken to drying chamber;
(d). close the separation valve door between load chamber and the drying chamber, to the load chamber vacuum breaker, element then that another is to be dried is loaded in the load chamber, and air extractor is bled to load chamber and is decompressed to second vacuum state;
(e). open the separation valve door between unloading chamber and the drying chamber, take out device is taken the element in the drying chamber and is taken to the unloading chamber;
(f). close the separation valve door between unloading chamber and the drying chamber, to unloading chamber vacuum breaker and the dry element that finishes of taking-up, bleeding to put is decompressed to second vacuum state to the unloading chamber pumping again.
7. drying means as claimed in claim 6 is characterized in that the vacuum of described second vacuum state is less than or equal to the vacuum of first vacuum state.
8. drying means as claimed in claim 6 is characterized in that the vacuum of described second vacuum state is greater than the vacuum of first vacuum state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102005870A CN101303189B (en) | 2007-05-08 | 2007-05-08 | Vacuum drying machine and drying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102005870A CN101303189B (en) | 2007-05-08 | 2007-05-08 | Vacuum drying machine and drying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101303189A CN101303189A (en) | 2008-11-12 |
| CN101303189B true CN101303189B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007102005870A Expired - Fee Related CN101303189B (en) | 2007-05-08 | 2007-05-08 | Vacuum drying machine and drying method |
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| Country | Link |
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| CN (1) | CN101303189B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2260996Y (en) * | 1996-01-19 | 1997-08-27 | 浙江大学 | Vacuum scraper drying device |
| CN1490583A (en) * | 2002-10-16 | 2004-04-21 | 杨时英 | Automatic closed charge-in charge-out rotary vacuum drier |
| CN1908563A (en) * | 2005-08-01 | 2007-02-07 | 精工爱普生株式会社 | Reduced-pressure drying apparatus |
-
2007
- 2007-05-08 CN CN2007102005870A patent/CN101303189B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2260996Y (en) * | 1996-01-19 | 1997-08-27 | 浙江大学 | Vacuum scraper drying device |
| CN1490583A (en) * | 2002-10-16 | 2004-04-21 | 杨时英 | Automatic closed charge-in charge-out rotary vacuum drier |
| CN1908563A (en) * | 2005-08-01 | 2007-02-07 | 精工爱普生株式会社 | Reduced-pressure drying apparatus |
Non-Patent Citations (2)
| Title |
|---|
| JP平6-50660A 1994.02.25 |
| JP平8-296963A 1996.11.12 |
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| Publication number | Publication date |
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| CN101303189A (en) | 2008-11-12 |
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