CN104697714B - A kind of vacuum leak hunting and closing device, vacuum leak hunting and mouth-sealing method - Google Patents
A kind of vacuum leak hunting and closing device, vacuum leak hunting and mouth-sealing method Download PDFInfo
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- CN104697714B CN104697714B CN201510077300.4A CN201510077300A CN104697714B CN 104697714 B CN104697714 B CN 104697714B CN 201510077300 A CN201510077300 A CN 201510077300A CN 104697714 B CN104697714 B CN 104697714B
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Abstract
The present invention relates to a kind of vacuum leak hunting and closing device, which includes motion bar, mounting bracket, seal closure, first exhaust tube, gas tube and the second exhaust tube, laser instrument and gas detection cell, the motion bar is used for moving the mounting bracket, one end of the motion bar is connected in the mounting bracket and the other end is connected in power source, the mounting bracket is used for installing cup to be measured, the seal closure is used for covering cup to be measured and coordinates vacuum extractor to carry out evacuation and coordinate gas detection cell to detect cup to be measured, laser instrument is used for sealing cup to be measured, the laser instrument is located at the top of the seal closure.The invention further relates to one kind carries out vacuum leak hunting and mouth-sealing method using above-mentioned vacuum leak hunting and closing device.
Description
Technical field
The present invention relates to a kind of vacuum leak hunting, sealing tech more particularly to a kind of for vacuum leak hunting and the device of sealing
And method.
Background technology
The cool-bags such as thermos cup, incubation canteen typically have the agent structure for contain things.The agent structure is
It is made up of inside and outside two-layer rustless steel, is the annular seal space with certain vacuum degree between the inside and outside two-layer rustless steel, in order to completely cut off heat
Transmission.The agent structure has the inner chamber of one end open to hold food, water etc..Existing cool-bag in process of production,
First evacuation, then sealing cup bottom outlet, is finally hunted leak.Specifically, first the cool-bag at the cup bottom included with hole is placed in
In heating furnace, evacuation is then carried out to heating furnace, after certain vacuum degree to be achieved, is begun to warm up, make a glass underseal mouth.At this
Due to carrying out evacuation using heating furnace during one, therefore, the vacuum being finally reached is low (only about 2KPa), and difficult
To reach condition of high vacuum degree, and then it is bad to cause the thermos cup that produces to there is heat insulation effect.Also, due to needing to whole heating
The inside of stove is carried out evacuation and cup bottom outlet is sealed by way of heating furnace, is existed and is taken longer, production efficiency
Relatively low shortcoming.
Content of the invention
In view of this, it is necessory to provide a kind of achievable condition of high vacuum degree, evacuation, leak detection and sealing one and shortening life
Production. art, the vacuum leak hunting of improve production efficiency and closing device and method.
The present invention provides a kind of vacuum leak hunting and closing device, and which includes that motion bar, mounting bracket, seal closure, first are taken out
Trachea, gas tube and the second exhaust tube, laser instrument and gas detection cell, wherein,
The motion bar is used for moving the mounting bracket, and one end of the motion bar is connected in the mounting bracket and another
End is connected in power source；
The mounting bracket is used for installing cup to be measured, and the mounting bracket includes base plate, seal washer and fixture, institute
Fixture is stated located at the centre of the base plate, the fixture includes the first spaced catch and the second catch, the first gear
Mounting groove is formed between piece and the second catch, and the profile of the mounting groove is consistent with the rim of a cup shape of cup to be measured so as to be measured
Cup fixed by the mounting groove, the base plate is being provided with groove to install the sealing gasket around the position of the fixture
Circle, the profile of the groove is consistent with the terminal end shape of the seal closure so that the end of seal closure is placed in after mounting bracket movement
The second annular seal space is formed in the groove, and the cup to be measured is made up of inwall, diapire and outer wall, the inwall, diapire
First annular seal space is formed and outer wall between, and there is the cup to be measured the inner chamber of one end open, the diapire to have one the 3rd
Through hole, first catch and the second catch of the fixture are respectively equipped with first through hole and the second through hole corresponding with first through hole
So that the intracavity inter-connection of second annular seal space and cup to be measured；
The seal closure is used for covering cup to be measured and coordinates vacuum extractor to carry out evacuation and coordinate gas inspection
Survey unit to detect the first annular seal space of cup to be measured, the seal closure is located at the top of the mounting bracket, described
The distal opening and top closure of seal closure, the side wall of the seal closure are connected with first exhaust tube and gas tube, and described
One end of two exhaust tubes is placed in the seal closure and is connected with suction hood and the other end passes through the side wall of the seal closure and connects gas
Body detector unit and vacuum extractor, are provided with laser lens, and make the laser saturating on the tube wall of second exhaust tube
Mirror is placed in the top of the third through-hole of the diapire of the cup to be measured, and the suction hood is used for being connected with the diapire of cup to be measured
And the first annular seal space of cup to be measured is connected with second exhaust tube by third through-hole；
The laser instrument is used for sealing the third through-hole of cup to be measured, and the laser instrument is located at the seal closure
Top so that inside of the laser beam through the laser lens and via second exhaust tube reaches the bottom of cup to be measured
The third through-hole of wall.
Wherein, the mounting bracket is additionally provided with the body of rod, and the body of rod is placed in first catch on the base plate
Centre and spaced with first catch.
Wherein, second exhaust tube is made up of the first pipe and second pipe that are connected with each other, the axis of the first pipe with
The axis shape of second pipe has angle, and the angle is less than or equal to 150 degree more than or equal to 90 degree, and the end of the first pipe is connected with
The suction hood, the top of the first pipe are provided with laser lens, and one end of the second pipe is connected in the first pipe and the other end
Connection gas detection cell and vacuum extractor.
Wherein, the inner surface of the side wall of the seal closure is provided with multiple raised lines.
Wherein, a diameter of 1 millimeter～1.2 millimeters of the third through-hole of diapire in the cup to be measured.
The present invention also provides a kind of using above-mentioned vacuum leak hunting and the vacuum leak hunting of closing device and mouth-sealing method, and which includes
Following steps：
(1) a cup to be measured and vacuum leak hunting and closing device be provided, the cup to be measured by inwall, diapire and
Outer wall is constituted, and the inwall, formation first annular seal space between diapire and outer wall, the cup to be measured have the interior of one end open
Chamber, the diapire have a third through-hole；
(2) in the mounting groove of the fixture for the cup to be measured being placed in mounting bracket, and mounting bracket is moved by motion bar
And the end of seal closure is placed in the groove of the mounting bracket and is formed the second annular seal space, wherein described second annular seal space with
The intracavity inter-connection of cup to be measured, while the suction hood for being connected in the second exhaust tube is attached at the diapire at the cup bottom to be measured,
So that first annular seal space is separate with the second annular seal space and is connected with suction hood and the second exhaust tube by third through-hole；
(3) vacuum is evacuated to less than 0.1Pa by the second exhaust tube to the first annular seal space, stops evacuation；
(4) evacuation is carried out to the inner chamber of the second annular seal space and cup to be measured by the first exhaust tube, made described first close
The vacuum of the inner chamber of envelope chamber and cup to be measured is less than 0.1Pa；
(5) detected gas are filled with to the inner chamber of second annular seal space and cup to be measured by gas tube, and second is taken out
Trachea is connected in gas detection cell, detects that the first annular seal space whether there is detected gas by gas detection cell；
If (6) testing result does not have detected gas for the first annular seal space, laser beam is produced by laser instrument, is made
The laser beam passes through the 3rd of the laser lens the diapire via the inside arrival of second exhaust tube cup to be measured
Through hole, and the third through-hole is closed.
Wherein, when gas detection cell detects the concentration of the detected gas of the first annular seal space less than 1ppm, that is, sentence
There are no detected gas in the first annular seal space of breaking.
Wherein, the detected gas are helium.
Wherein, also include that (7) step passes through the first exhaust tube by the detection gas of first annular seal space and the inner chamber of cup to be measured
Body is extracted out to reclaim.
Compared with prior art, vacuum leak hunting of the present invention and closing device and method have advantages below：First,
By seal closure and mounting bracket are cooperatively formed the second annular seal space, cup to be measured is placed in the second sealing intracavity, second takes out
The suction hood that one end of trachea is connected with is attached at the diapire of cup to be measured and is evacuated the first annular seal space of cup and described second
Pipe is communicated and is isolated with the second annular seal space, so as to individually be taken out to the first annular seal space by second exhaust tube
Vacuum, the first annular seal space of cup obtained from entering can have higher vacuum, and heat insulation effect is preferable；Second, using second
The gas detection cell of exhaust tube connection can be used for quickly detecting to the sealing of the cup to be measured, so as to improve production
Efficiency；3rd, Quick seal can be carried out to the third through-hole of the diapire of cup to be measured using the laser beam with high-energy, saved
About the energy and efficiency improve.The vacuum leak hunting and closing device by evacuation, leak detection and seal these three functions and combine in
Integrally, the method for the vacuum leak hunting and sealing had both substantially increased the vacuum of cup, also substantially increased production efficiency.
As the mounting bracket is additionally provided with the body of rod, the body of rod is placed in first catch on the base plate
Middle and spaced with first catch, therefore, when the mounting bracket is moved to the seal closure, the body of rod is put
In the inner chamber of the cup to be measured so that the cup to be measured is stronger clamped and realization is more accurately positioned,
Guarantee the accuracy of follow-up sealing.
As the inner surface of the side wall of the seal closure is provided with multiple raised lines, when the mounting bracket is moved to the sealing
During the lower section of cover, the wall contacts of the plurality of raised line and the cup to be measured so that the stronger quilt of the cup to be measured
Clamp and realize more accurate positioning, it is ensured that the accuracy of follow-up sealing.
Due to a diameter of 1 millimeter～1.2 millimeters of the third through-hole of diapire in the cup to be measured, relative to existing
For the hole at cup bottom, the aperture of the third through-hole is less, thus the laser that can be produced by laser instrument during sealing
Beam is sealed to the third through-hole, and is easier to realize high vacuum during evacuation.
As the detected gas are helium, as gas detection cell has higher sensitivity to helium, thus can
Accurately cup to be measured is detected.
The detected gas of first annular seal space and the inner chamber of cup to be measured are extracted out to reclaim by the first exhaust tube, this time
The detected gas of receipts are reusable, so as to reduce production cost.
Description of the drawings
Fig. 1 is the structural representation of vacuum leak hunting of the present invention and closing device.
Fig. 2 is the structural representation in vacuum leak hunting described in Fig. 1 and closing device after the amplification of seal closure.
Fig. 3 is profile of the seal closure described in Fig. 2 along III-III line.
Fig. 4 is the mplifying structure schematic diagram of the second exhaust tube in vacuum leak hunting described in Fig. 1 and closing device.
Fig. 5 is the mplifying structure schematic diagram of mounting bracket in vacuum leak hunting described in Fig. 1 and closing device.
Fig. 6 is the mplifying structure schematic diagram of fixture in mounting bracket described in Fig. 5.
Fig. 7 is the mplifying structure schematic diagram of seal washer in mounting bracket described in Fig. 5.
Fig. 8 is the profile of cup to be measured.
Fig. 9 is vacuum leak hunting of the present invention and closing device structural representation operationally.
Figure 10 is the profile of vacuum leak hunting described in Fig. 9 and closing device along Ⅹ-Ⅹ line.
In accompanying drawing 1 to accompanying drawing 10,1 represents motion bar；2 represent mounting bracket；2a represents base plate；2b represents the body of rod；2c
Represent fixture；2c1 represents the first catch；2c1a represents first through hole；2c2 represents the second catch；2c2a represents the second through hole；
2c3 represents mounting groove；2d represents groove；2e represents seal washer；3 represent seal closure；3a represents the second annular seal space；3b represents convex
Bar；4 represent the first exhaust tube；5 represent gas tube；6 represent the second exhaust tube；6a represents laser lens；6b represents suction hood；6c tables
Show first pipe；6d represents second pipe；7 represent cup to be measured；7a represents inwall；7b represents outer wall；7c represents diapire；7c1 tables
Show third through-hole；7d represents edge；7e represents inner chamber；7f represents first annular seal space.
Specific examples below will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Specific embodiment
The vacuum leak hunting present invention provided below with reference to accompanying drawing and closing device and method are described further.
Fig. 1, Fig. 9 and Figure 10 is referred to, for the vacuum leak hunting for providing of the invention and closing device.The vacuum leak hunting and envelope
Mouth device includes motion bar 1, mounting bracket 2, seal closure 3, the first exhaust tube 4, gas tube 5 and the second exhaust tube 6, laser instrument
(not shown) and gas detection cell (not shown).The motion bar 1 is used for moving the mounting bracket 2.The motion bar 1
One end is connected in the mounting bracket 2 and the other end is connected in power source.The mounting bracket 2 is used for installing cup 7 to be measured.Described
Seal closure 3 is used for covering cup 7 to be measured and coordinates vacuum extractor to carry out evacuation and coordinate gas detection cell to treat
The cup 7 of survey is detected.The laser instrument is used for sealing cup 7 to be measured.The laser instrument is located at the sealing
The top of cover 3.
Fig. 5 to Fig. 7 is referred to, the mounting bracket 2 includes base plate 2a, seal washer 2e and fixture 2c.The fixture 2c
Centre located at the base plate 2a.The fixture 2c is used for clamping cup 7 to be measured.Specifically, the fixture 2c includes mutually
Spaced first catch 2c1 and the second catch 2c2.Mounting groove is formed between the first catch 2c1 and the second catch 2c2
2c3 is installing cup 7 to be measured.It is appreciated that the shape one of the profile of the rim of a cup of cup 7 to be measured and the mounting groove 2c3
Showing makes cup 7 to be measured be fixed by the mounting groove 2c3.The height of the first catch 2c1 and the second catch 2c2 can basis
Cup 7 to be measured and design, as long as can be by 7 firm clamping of cup to be measured.In the present embodiment, the first catch 2c1
With the second catch 2c2 for concentric annular catch, the diameter of the diameter of the second catch 2c2 than the first catch 2c1
Greatly.The base plate 2a is provided with groove 2d in the position around the fixture 2c, to install the seal washer 2e.The sealing gasket
The shape of circle 2e is consistent with the shape of the groove 2d.The seal washer 2e has certain elasticity.The seal washer 2e
Material can be natural rubber, silicone rubber etc..The profile of the groove 2d is consistent with the terminal end shape of the seal closure 3 so as to work as
After the movement of mounting bracket 2, the end of seal closure 3 is placed in the groove 2d and forms the second annular seal space 3a.
Fig. 8 is referred to, the cup 7 to be measured is made up of inwall 7a, diapire 7c and outer wall 7b.The inwall 7a, diapire
First annular seal space 7f is formed between 7c and outer wall 7b.The cup 7 to be measured has the inner chamber 7e of one end open.The diapire 7c
There is a third through-hole 7c1.A diameter of 1 millimeter～1.2 millimeters of the third through-hole 7c1.The first catch 2c1 and second
Catch 2c2 is respectively equipped with first through hole 2c1a and the second through hole 2c2a corresponding with first through hole 2c1a so that described second is close
Envelope chamber 3a is connected with the inner chamber 7e of cup 7 to be measured.I.e., now, the gas and air pressure of the second annular seal space 3a are interior with cup 7
The gas of chamber 7e and air pressure all same.It is appreciated that the outer wall 7b of the cup 7 is forming an edge at the diapire 7c
7d, the edge 7d can be easy to be mounted and connected outer cup bottom after sealing.The shape of the cup 7 to be measured is not limited, as long as
There is the cup 7 to be measured inner chamber 7e to carry out contain things and be vacuum using first annular seal space 7f or carry out close to vacuum
Insulation.The section of the cup 7 to be measured can be circle, square, rectangle, ellipse etc..
It is appreciated that the base plate 2a of the mounting bracket 2 is additionally provided with body of rod 2b, the body of rod 2b is on the base plate 2a
It is placed in the centre of the first catch 2c1 spaced with the first catch 2c1.Therefore, when the mounting bracket 2 is moved
When moving to the seal closure 3, the body of rod 2b is placed in the inner chamber 7e of the cup 7 to be measured so that the cup 7 to be measured
Stronger clamped and realize more accurate positioning, it is ensured that the accuracy of follow-up sealing.
Fig. 2 and Fig. 3 is referred to, the seal closure 3 is located at the top of the mounting bracket 2.The seal closure 3 is with one
The cover body of hollow space.The distal opening and top closure of the seal closure 3.The size and dimension of the seal closure 3 is not limited, only
Cup 7 to be measured can be covered and be coordinated the groove 2d of the mounting bracket 2, base plate 2a to form the second annular seal space 3a.
In the present embodiment, the seal closure 3 is shaped as cylinder.The side wall of the seal closure 3 is connected with first exhaust tube 4 and inflation
Pipe 5.First exhaust tube 4 and gas tube 5 are used for the second annular seal space 3a gas bleedings and insufflation gas.
It is appreciated that the inner surface of the side wall of the seal closure 3 is provided with multiple raised line 3b.When the mounting bracket 2 is moved
To the seal closure 3 lower section when, the plurality of raised line 3b is contacted with the outer wall 7b of the cup 7 to be measured so that described to be measured
Cup 7 stronger clamped and realize more accurate positioning, it is ensured that the accuracy of follow-up sealing.
Fig. 1 to Fig. 3 is referred to, second exhaust tube 6 is used for carrying out first annular seal space 7f of the cup 7 to be measured
Pumping and detection.Specifically, one end of second exhaust tube 6 is placed in the seal closure 3 and is connected with suction hood 6b and the other end
Side wall through the seal closure 3 is placed in outside the seal closure 3 and connects gas detection cell and vacuum extractor.Described
Laser lens 6a is installed on the tube wall of the second exhaust tube 6, and makes the laser lens 6a be placed in the bottom of the cup 7 to be measured
The top of the third through-hole 7c1 of wall 7c.Fig. 4 is referred to, in the present embodiment, second exhaust tube 6 is by first for being connected with each other
Pipe 6c and second pipe 6d composition, the axis shape of the axis of first pipe 6c and second pipe 6d have angle β, and the angle β is big
150 degree are less than or equal in being equal to 90 degree, the end of first pipe 6c is connected with suction hood 6b, and the top of first pipe 6c sets
There is a laser lens 6a, one end of second pipe 6d is connected in first pipe 6c and other end connection gas detection cell and takes out
Vacuum equipment.
Suction hood 6b is used for being connected with the diapire 7c of cup 7 to be measured and by third through-hole 7c1 by cup 7 to be measured
First annular seal space 7f be connected with second exhaust tube 6.Specifically, suction hood 6b for top end opening is less, open by end
The larger hollow structure of mouth.The end of suction hood 6b can be fitted with the diapire 7c of the cup 7, and top is fixed on described
One end of two exhaust tubes 6.Suction hood 6b has certain elasticity and thickness, to ensure taking out first annular seal space 7f
In vacuum process, first annular seal space 7f is made to keep higher vacuum.The material of suction hood 6b can have for rubber etc.
Deformability and the material of elasticity.It is appreciated that the end of suction hood 6b is more smooth, so that suction hood 6b is brought into close contact in described
The diapire 7c of cup 7 to be measured；The lower section of suction hood 6b is the diapire 7c with third through-hole 7c1.
The laser instrument is used for sealing the third through-hole 7c1 of cup 7 to be measured.The laser instrument is located at described close
The top of sealing cover 3 is so that laser beam is through the laser lens 6a and to be measured via the inside arrival of second exhaust tube 6
The third through-hole 7c1 of the diapire 7c of cup 7.Now, under the laser beam effect with high-energy, the third through-hole 7c1 can
Realize sealing.
The present invention also provides a kind of vacuum leak hunting and mouth-sealing method.The vacuum leak hunting and mouth-sealing method adopt above-mentioned vacuum
Leak detection and closing device are realized.The method is comprised the following steps：
(1) a cup 7 to be measured and vacuum leak hunting and closing device are provided, the cup 7 to be measured is by inwall 7a, bottom
Wall 7c and outer wall 7b compositions, the inwall 7a, formation first annular seal space 7f between diapire 7c and outer wall 7b, the cup to be measured
The 7 inner chamber 7e with one end open, the diapire 7c have a third through-hole 7c1；
(2) in the mounting groove 2c3 of the fixture 2c for the cup 7 to be measured being placed in mounting bracket 2, and moved by motion bar 1
Mounting bracket 2 simultaneously makes the end of seal closure 3 be placed in the groove 2d of the mounting bracket 2 and form the second annular seal space 3a, wherein
The second annular seal space 3a is connected with the inner chamber 7e of cup 7 to be measured, while suction hood 6b for being connected in the second exhaust tube 6 is attached
In the diapire 7c at the cup bottom 7 to be measured so that first annular seal space 7f and the second annular seal space 3a separate and pass through threeway
Hole 7c1 is connected with suction hood 6b and the second exhaust tube 6；
(3) vacuum is evacuated to less than 0.1Pa by 6 pairs of first annular seal spaces 7f of the second exhaust tube, stop taking out very
Empty；
(4) evacuation is carried out by the inner chamber 7e of 4 couples of the second annular seal space 3a of the first exhaust tube and cup 7 to be measured, made described
The vacuum of the inner chamber 7e of the second annular seal space 3a and cup 7 to be measured is less than 0.1Pa；
(5) detected gas are filled with to the inner chamber 7e of the second annular seal space 3a and cup 7 to be measured by gas tube 5, and will
Second exhaust tube 6 is connected in gas detection cell, detects first annular seal space 7f with the presence or absence of detection by gas detection cell
Gas；
If (6) testing result does not have detected gas for first annular seal space 7f, laser beam is produced by laser instrument,
Make the laser beam through the laser lens 6a and the diapire via the inside arrival of second exhaust tube 6 cup 7 to be measured
The third through-hole 7c1 of 7c, and the third through-hole 7c1 is closed.
Step (4) in, the purpose that the inner chamber 7e of the second annular seal space 3a and cup 7 to be measured carries out evacuation is, one
Aspect makes follow-up detected gas quickly spread, and on the other hand, detected gas are not mixed with air and still keep higher purity
So that the also recyclable recycling of detected gas.
When gas detection cell detects the concentration of the detected gas of first annular seal space 7f less than 1ppm, that is, judge institute
State first annular seal space 7f and there are no detected gas.The detected gas can be the gases such as helium.In the present embodiment, the detection gas
Body is helium.As gas detection cell has higher sensitivity to helium, thus accurately cup to be measured can be examined
Survey.
It is appreciated that methods described also includes that (7) step passes through the first exhaust tube 4 by first annular seal space 7f and cup to be measured
The detected gas of the inner chamber 7e of body 7 extract out to reclaim.The detected gas of the recovery are reusable, produce into so as to reduce
This.
Compared with prior art, vacuum leak hunting of the present invention and closing device and method have advantages below：First,
By seal closure 3 and mounting bracket 2 are cooperatively formed the second annular seal space 3a, cup 7 to be measured is placed in the second annular seal space 3a,
Suction hood 6b that one end of second exhaust tube 6 is connected with is attached at the diapire 7c of cup 7 to be measured and first annular seal space 7f by cup 7
Communicate with second exhaust tube 6 and be isolated with the second annular seal space 3a, so as to second exhaust tube 6 can be passed through individually to institute
Stating first annular seal space 7f carries out evacuation, and first annular seal space 7f of cup 7 obtained from entering can have higher vacuum, insulation
Effect is preferable；Second, the gas detection cell connected using the second exhaust tube 6 can be entered to the sealing of the cup 7 to be measured
Row quick detection, so that improve production efficiency；3rd, can be to the bottom of cup 7 to be measured using the laser beam with high-energy
The third through-hole 7c1 of wall 7c carries out Quick seal, has saved the energy and has improve efficiency.The vacuum leak hunting and closing device will
Evacuation, leak detection and seal these three functions and be integrated in one, the method for the vacuum leak hunting and sealing had both substantially increased cup 7
Vacuum, also substantially increases production efficiency.
In addition, those skilled in the art can also make other changes in spirit of the invention, these are according to present invention essence certainly
The change done by god, should all be included in scope of the present invention.
Claims (9)
1. a kind of vacuum leak hunting and closing device, it is characterised in which includes motion bar, mounting bracket, seal closure, the first pumping
Pipe, gas tube and the second exhaust tube, laser instrument and gas detection cell, wherein,
The motion bar is used for moving the mounting bracket, and one end of the motion bar is connected in the mounting bracket and other end company
In power source；
The mounting bracket is used for installing cup to be measured, and the mounting bracket includes base plate, seal washer and fixture, the folder
Tool includes the first spaced catch and the second catch located at the centre of the base plate, the fixture, first catch and
Mounting groove is formed between second catch, and the profile of the mounting groove is consistent with the rim of a cup shape of cup to be measured so that cup to be measured
Body is fixed by the mounting groove, and the base plate is provided with groove to install the seal washer, institute in the position around the fixture
The profile of stating groove consistent with the terminal end shape of the seal closure so that after mounting bracket movement the end of seal closure be placed in described
The second annular seal space is formed in groove, the cup to be measured is made up of inwall, diapire and outer wall, the inwall, diapire and outer
First annular seal space is formed between wall, and there is the cup to be measured the inner chamber of one end open, the diapire there is a third through-hole,
First catch and the second catch of the fixture be respectively equipped with first through hole and the second through hole corresponding with first through hole so that
The intracavity inter-connection of second annular seal space and cup to be measured；
The seal closure is used for covering cup to be measured and coordinates vacuum extractor to carry out evacuation and coordinate gas detecting list
Unit detects that to the first annular seal space of cup to be measured the seal closure is located at the top of the mounting bracket, the sealing
The distal opening and top closure of cover, the side wall of the seal closure are connected with first exhaust tube and gas tube, and described second takes out
One end of trachea is placed in the seal closure and is connected with suction hood and the other end passes through the side wall of the seal closure and connects gas inspection
Unit and vacuum extractor is surveyed, laser lens is installed on the tube wall of second exhaust tube, and is put the laser lens
In the top of the third through-hole of the diapire of the cup to be measured, the suction hood is used for being connected with the diapire of cup to be measured and leading to
Cross third through-hole the first annular seal space of cup to be measured is connected with second exhaust tube；
The laser instrument is used for sealing the third through-hole of cup to be measured, and the laser instrument is upper located at the seal closure
Side is so that inside of the laser beam through the laser lens and via second exhaust tube reaches the diapire of cup to be measured
Third through-hole.
2. vacuum leak hunting as claimed in claim 1 and closing device, it is characterised in that the mounting bracket is additionally provided with the body of rod,
The body of rod is placed in the centre of first catch and spaced with first catch on the base plate.
3. vacuum leak hunting as claimed in claim 1 and closing device, it is characterised in that second exhaust tube is by being connected with each other
First pipe and second pipe composition, the axis of the first pipe has angle with the axis shape of second pipe, and the angle is more than etc.
150 degree are less than or equal in 90 degree, the end of the first pipe is connected with the suction hood, it is saturating that the top of the first pipe is provided with laser
Mirror, one end of the second pipe are connected in the first pipe and other end connection gas detection cell and vacuum extractor.
4. vacuum leak hunting as claimed in claim 1 and closing device, it is characterised in that the inner surface of the side wall of the seal closure
It is provided with multiple raised lines.
5. vacuum leak hunting as claimed in claim 1 and closing device, it is characterised in that the of diapire in the cup to be measured
A diameter of 1 millimeter～1.2 millimeters of three through holes.
6. vacuum leak hunting described in a kind of any one of employing claim 1 to 5 and vacuum leak hunting and the mouth-sealing method of closing device,
Which comprises the following steps：
(1) a cup to be measured and vacuum leak hunting and closing device are provided, the cup to be measured is by inwall, diapire and outer wall
Composition, the inwall, formation first annular seal space between diapire and outer wall, the cup to be measured have the inner chamber of one end open,
The diapire has a third through-hole；
(2) in the mounting groove of the fixture for the cup to be measured being placed in mounting bracket, and mounting bracket is moved by motion bar and is made
The end of seal closure is placed in the groove of the mounting bracket and forms the second annular seal space, wherein described second annular seal space with to be measured
Cup intracavity inter-connection, while the suction hood for being connected in the second exhaust tube to be attached at the diapire at the cup bottom to be measured so that
First annular seal space is separate with the second annular seal space and is connected with suction hood and the second exhaust tube by third through-hole；
(3) vacuum is evacuated to less than 0.1Pa by the second exhaust tube to the first annular seal space, stops evacuation；
(4) evacuation is carried out to the inner chamber of the second annular seal space and cup to be measured by the first exhaust tube, make the first annular seal space
And the vacuum of the inner chamber of cup to be measured is less than 0.1Pa；
(5) detected gas are filled with to the inner chamber of second annular seal space and cup to be measured by gas tube, and by the second exhaust tube
It is connected in gas detection cell, detects that the first annular seal space whether there is detected gas by gas detection cell；
If (6) testing result does not have detected gas for the first annular seal space, laser beam is produced by laser instrument, swash this
Light beam passes through the third through-hole of the laser lens the diapire via the inside arrival of second exhaust tube cup to be measured,
And the third through-hole is closed.
7. vacuum leak hunting as claimed in claim 6 and mouth-sealing method, it is characterised in that when gas detection cell detection described the
When the concentration of the detected gas of one annular seal space is less than 1ppm, that is, judge that the first annular seal space does not have detected gas.
8. vacuum leak hunting as claimed in claim 6 and mouth-sealing method, it is characterised in that the detected gas are helium.
9. vacuum leak hunting as claimed in claim 6 and mouth-sealing method, it is characterised in that also include step (7) by the first pumping
The detected gas of first annular seal space and the inner chamber of cup to be measured are extracted out to reclaim by pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510077300.4A CN104697714B (en) | 2015-02-13 | 2015-02-13 | A kind of vacuum leak hunting and closing device, vacuum leak hunting and mouth-sealing method |
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| CN201510077300.4A CN104697714B (en) | 2015-02-13 | 2015-02-13 | A kind of vacuum leak hunting and closing device, vacuum leak hunting and mouth-sealing method |
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| CN104697714A CN104697714A (en) | 2015-06-10 |
| CN104697714B true CN104697714B (en) | 2017-03-15 |
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| CN201510077300.4A Expired - Fee Related CN104697714B (en) | 2015-02-13 | 2015-02-13 | A kind of vacuum leak hunting and closing device, vacuum leak hunting and mouth-sealing method |
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Families Citing this family (1)
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| CN105628310B (en) * | 2016-02-17 | 2018-09-14 | 亿和精密工业（苏州）有限公司 | Tightness measuring device and test method |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5755875A (en) * | 1980-09-11 | 1982-04-03 | Tokyo Shibaura Electric Co | Manufacture of vacuum double vessel |
| JPS58224087A (en) * | 1982-06-21 | 1983-12-26 | Taiyo Sanso Kk | Method and device for vacuum sealing of heat insulated vacuum vessel |
| DE3308555C1 (en) * | 1983-03-10 | 1984-07-19 | Cit-Alcatel GmbH, 6980 Wertheim | Apparatus for automatically measuring the leakage rate of a vessel |
| JPS60187493A (en) * | 1984-03-08 | 1985-09-24 | Daihou Giken Kk | Manufacture of double-layered vacuum vessel |
| JPS62261026A (en) * | 1986-05-07 | 1987-11-13 | Hitachi Ltd | Detection of vacuum leak for vacuum vessel |
| SU1668929A1 (en) * | 1989-03-21 | 1991-08-07 | Предприятие П/Я М-5727 | Method of quality control of cryogenic vacuum vessel heat insulation |
| JP2793123B2 (en) * | 1994-04-28 | 1998-09-03 | モリ工業株式会社 | Manufacturing method of stainless steel vacuum insulated container |
| JP3547285B2 (en) * | 1997-04-30 | 2004-07-28 | 象印マホービン株式会社 | Vacuum structure exhaust device |
| JP3921867B2 (en) * | 1999-03-23 | 2007-05-30 | ヤマハ株式会社 | Leak test equipment |
| CN1869624A (en) * | 2006-06-28 | 2006-11-29 | 杨贻方 | Thermal cup vacuum detection instrument |
| CN101149307A (en) * | 2006-11-22 | 2008-03-26 | 徐林波 | Vacuum warming container positive pressure leakage-detecting method |
| CN102512089A (en) * | 2012-01-06 | 2012-06-27 | 苏州雷嘉电子科技有限公司 | Technology and equipment for manufacturing vacuum heat insulation vessel |
| CN104128704A (en) * | 2014-07-08 | 2014-11-05 | 昆山浦元真空技术工程有限公司 | Vacuum cup vacuum welding technology |
| CN204405259U (en) * | 2015-02-13 | 2015-06-17 | 金华市志能科技有限公司 | A kind of vacuum leak hunting and closing device |
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