CN104330222A - Mask underwater air-tightness detection system - Google Patents
Mask underwater air-tightness detection system Download PDFInfo
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- CN104330222A CN104330222A CN201410671411.3A CN201410671411A CN104330222A CN 104330222 A CN104330222 A CN 104330222A CN 201410671411 A CN201410671411 A CN 201410671411A CN 104330222 A CN104330222 A CN 104330222A
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- mask
- mold
- transparent water
- under water
- ring groove
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Abstract
The invention relates to a mask underwater air-tightness detection system, which includes a positioning mould, a blower and transparent water tank. The positioning mould defines an annular groove and intakeport communicated with the annular groove, and the intakeport is connected with a vacuum pump. The blower is used to inflate a mask, and the transparent water tank is located just below the positioning mould. As one aspect, the positioning mould is fixed, the transparent water tank is fixed on a lifting mechanism; as another possible aspect, the positioning mould can be fixed on a lifting mechanism, and the transparent water tank is fixed. The mask underwater air-tightness detection system has a scientific design, simple structure and is easy to operate, thereby not only improving automation level of underwater air-tightness detection and reducing the labor intensity of the workers, but also improving the quality consistency of product testing, and improving production efficiency exponentially or by multiples.
Description
Technical field
The present invention relates to the airtight detection technique field of mask, specifically a kind of mask air tightness detecting system under water.
Background technology
The airtight under water detection of mask is the important step of mask production testing, and all masks require 100% airtight detection under water.The airtight detection under water of domestic existing mask assembling line still adopts single station to detect, manually the head dummy mold of veiled is pressed under water, the hand of operating personnel must be immersed in water for a long time, this operation is especially not suitable for winter, and water temperature in winter must ensure at 35-40 DEG C, otherwise operative employee is difficult to bear, operative employee bends over to operate for a long time simultaneously, labour intensity is very large, and production efficiency is low, and airtight detection operation needs 3 operative employees to be one group jointly to complete under water.
Summary of the invention
The object of the invention is to solve above-mentioned problems of the prior art, and a kind of mask air tightness detecting system is under water provided.This system creatively adopts the method for negative-pressure adsorption, fixing mask, malleation inflation, airtight detection, reduces labor strength, improves production efficiency.
The present invention is achieved through the following technical solutions:
A kind of mask air tightness detecting system under water, comprises the mold for being set with mask, for the fan blower for inflating in mask and the transparent water vat for submergence mask; The position of mold maintains static, mold offers a ring annular groove and an air entry communicated with ring groove, the position of offering of ring groove is positioned at the position that mold combines with the Turn up hem of mask, the position of offering of air entry is positioned at not by the position that mask covers on mold, and air entry is connected with vacuum pump; Transparent water vat is located at immediately below mold, and transparent water vat is fixed on elevating mechanism.
In such scheme, the position of mold is fixed, and transparent water vat can be elevated by elevating mechanism.In addition, also have a kind of scheme of same principle, that is: the position of transparent water vat maintains static, and mold is fixed on elevating mechanism, and mold can be elevated by elevating mechanism.
Described mold is according to the design of human body head dummy, and when being sleeved on mold by mask, the two can perfect matching, according to shape and the main communication position of different mask Turn up hem, can design different molds, to meet the accurate location of mask.
During detection, comprise following step: 1) be sleeved on mold by mask, one of mask circle Turn up hem is made to cover on a ring annular groove of mold, start vacuum pump and extract negative pressure, negative pressure is not less than 10000Pa, is realized fitting tightly in the ring annular groove that one of mask circle Turn up hem is drawn into mold, thus sealing is fixed on mold; 2) line ports of fan blower is connected on the gas outlet of mask; 3) start elevating mechanism, transparent water vat is risen (or being fallen by mold), make the mold being set with mask be immersed in the water in transparent water vat completely; 4) inflated in mask by fan blower, control after 5000Pa by mask interior charge pressure, stop inflation, testing staff carries out airtight detection to mask; 5) after detecting, transparent water vat is fallen (or mold rises by elevating mechanism) by elevating mechanism, is taken off by fan blower pipeline from mask, closes vacuum pump negative pressure, takes off mask.
Further, the width of the ring groove on mold is 3-5mm.Also comprise PLC in this system, PLV controller controls the action of fan blower, vacuum pump and elevating mechanism; Meanwhile, mold is also provided with pressure transducer, pressure transducer is also connected with PLC.After mask enters water, the change of pressure experienced by pressure transducer, and by signal transmission to PLC, PLC controls fan blower to air blast in mask, and after the charge pressure main road 5000Pa of mask interior, fan blower stops inflation automatically.The introducing of PLC, makes present system can realize robotization completely, integrates control automatically, automatic inflating, automatically decompress(ion) and manual observation.
When the key point of present system is mask airtight detection under water, negative-pressure adsorption mode is adopted to fix between Turn up hem and fixing mold, negative-pressure adsorption not only can make mask and mold fit tightly, and ensures airtight, and does not affect the mask airtight testing result of malleation under water.
Apparatus of the present invention design science, structure are simple, easy to operate, not only increase the automatization level of airtight detection under water, reduce labor strength, also improve the quality conformance of Product checking, and at double or several times improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation one of present system.
Fig. 2 is the structural representation one of present system.
In figure: 1-mold, 2-fan blower, the transparent water vat of 3-, 4-vacuum pump, 5-elevating mechanism, 6-pressure transducer, 7-PLC controller.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described:
As shown in Figure 1, a kind of mask air tightness detecting system under water, comprises the mold 1 for being set with mask, for the fan blower 2 for inflating in mask and the transparent water vat 3 for submergence mask; The position of mold 1 maintains static, mold 1 offers a ring annular groove and an air entry communicated with ring groove, the position of offering of ring groove is positioned at the position that mold 1 combines with the Turn up hem of mask, the position of offering of air entry is positioned at not by the position that mask covers on mold 1, and air entry is connected with vacuum pump 4; Transparent water vat 3 is located at immediately below mold 1, and transparent water vat 3 is fixed on elevating mechanism 5.
Or as shown in Figure 2, a kind of mask air tightness detecting system under water, comprises the mold 1 for being set with mask, for the fan blower 2 for inflating in mask and the transparent water vat 3 for submergence mask; Mold 1 is fixed on elevating mechanism 5, mold 1 offers a ring annular groove and an air entry communicated with ring groove, the position of offering of ring groove is positioned at the position that mold 1 combines with the Turn up hem of mask, the position of offering of air entry is positioned at not by the position that mask covers on mold 1, and air entry is connected with vacuum pump 4; Transparent water vat 3 is located at immediately below mold 1 and position and is maintained static.
During concrete enforcement, in this system, also comprise the action that PLC 7, PLV controller 7 controls fan blower 2, vacuum pump 4 and elevating mechanism 5.Meanwhile, positioning clamping fixture 1 is also provided with pressure transducer 6, pressure transducer 6 connects PLC 7.The width of the ring groove on positioning clamping fixture 1 is 3-5mm.
Claims (6)
1. a mask air tightness detecting system under water, is characterized in that: comprise the mold (1) for being set with mask, for the fan blower (2) for inflating in mask and the transparent water vat (3) for submergence mask; The position of mold (1) maintains static, mold (1) offers a ring annular groove and an air entry communicated with ring groove, the position of offering of ring groove is positioned at the upper position combined with the Turn up hem of mask of mold (1), the position of offering of air entry is positioned at not by the position that mask covers on mold (1), and air entry is connected with vacuum pump (4); Transparent water vat (3) is located at immediately below mold (1), and transparent water vat (3) is fixed on elevating mechanism (5).
2. mask according to claim 1 air tightness detecting system under water, is characterized in that: also comprise PLC (7) in this system, and PLV controller (7) controls the action of fan blower (2), vacuum pump (4) and elevating mechanism (5); Meanwhile, mold (1) is also provided with pressure transducer (6), pressure transducer (6) is also connected with PLC (7).
3. mask according to claim 1 and 2 air tightness detecting system under water, is characterized in that: the width of the ring groove on mold (1) is 3-5mm.
4. a mask air tightness detecting system under water, is characterized in that: comprise the mold (1) for being set with mask, for the fan blower (2) for inflating in mask and the transparent water vat (3) for submergence mask; Mold (1) is fixed on elevating mechanism (5), mold (1) offers a ring annular groove and an air entry communicated with ring groove, the position of offering of ring groove is positioned at the upper position combined with the Turn up hem of mask of mold (1), the position of offering of air entry is positioned at not by the position that mask covers on mold (1), and air entry is connected with vacuum pump (4); Transparent water vat (3) is located at immediately below mold (1) and position and is maintained static.
5. mask according to claim 4 air tightness detecting system under water, is characterized in that: also comprise PLC (7) in this system, and PLV controller (7) controls the action of fan blower (2), vacuum pump (4) and elevating mechanism (5); Meanwhile, mold (1) is also provided with pressure transducer (6), pressure transducer (6) is also connected with PLC (7).
6. the air tightness detecting system under water of the mask according to claim 4 or 5, is characterized in that: the width of the ring groove on mold (1) is 3-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671411.3A CN104330222A (en) | 2014-11-21 | 2014-11-21 | Mask underwater air-tightness detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671411.3A CN104330222A (en) | 2014-11-21 | 2014-11-21 | Mask underwater air-tightness detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104330222A true CN104330222A (en) | 2015-02-04 |
Family
ID=52404992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410671411.3A Pending CN104330222A (en) | 2014-11-21 | 2014-11-21 | Mask underwater air-tightness detection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN104330222A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5111684A (en) * | 1990-11-21 | 1992-05-12 | Pack Systems | Method and apparatus for leak testing packages |
| EP0475246B1 (en) * | 1990-09-05 | 1994-08-17 | Alcatel Cit | High flow leak detector with three molecular filters |
| CN1364232A (en) * | 1999-07-27 | 2002-08-14 | 因菲康有限公司 | Foil leak detection chamber |
| CN201569547U (en) * | 2009-10-20 | 2010-09-01 | 重庆市特种设备质量安全检测中心 | Vacuum adsorption leak detecting device |
| CN104048800A (en) * | 2014-06-12 | 2014-09-17 | 湖北华强科技有限责任公司 | Protective mask air tightness detecting device |
| CN204128746U (en) * | 2014-11-21 | 2015-01-28 | 山西新华化工有限责任公司 | Mask is air tightness detecting system under water |
-
2014
- 2014-11-21 CN CN201410671411.3A patent/CN104330222A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0475246B1 (en) * | 1990-09-05 | 1994-08-17 | Alcatel Cit | High flow leak detector with three molecular filters |
| US5111684A (en) * | 1990-11-21 | 1992-05-12 | Pack Systems | Method and apparatus for leak testing packages |
| CN1364232A (en) * | 1999-07-27 | 2002-08-14 | 因菲康有限公司 | Foil leak detection chamber |
| CN201569547U (en) * | 2009-10-20 | 2010-09-01 | 重庆市特种设备质量安全检测中心 | Vacuum adsorption leak detecting device |
| CN104048800A (en) * | 2014-06-12 | 2014-09-17 | 湖北华强科技有限责任公司 | Protective mask air tightness detecting device |
| CN204128746U (en) * | 2014-11-21 | 2015-01-28 | 山西新华化工有限责任公司 | Mask is air tightness detecting system under water |
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Application publication date: 20150204 |
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| RJ01 | Rejection of invention patent application after publication |