CN114527049A - Air permeability tester - Google Patents
Air permeability tester Download PDFInfo
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- CN114527049A CN114527049A CN202210120396.8A CN202210120396A CN114527049A CN 114527049 A CN114527049 A CN 114527049A CN 202210120396 A CN202210120396 A CN 202210120396A CN 114527049 A CN114527049 A CN 114527049A
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- China
- Prior art keywords
- negative pressure
- permeability tester
- gas permeability
- pressing
- assembly
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
Abstract
The invention discloses a gas permeability tester, which adopts the technical scheme that the gas permeability tester comprises an installation rack, a pressing component, a clamping component, a negative pressure component and a central control end, wherein the central control end is respectively and electrically connected with the pressing component and the negative pressure component; the clamping assembly is arranged on the mounting table and used for clamping a sample; the negative pressure assembly is arranged in the mounting table and is used for performing airflow negative pressure suction operation on the sample; the lower pressing assembly is arranged above the mounting table and used for pre-pressing the sample, the central control end is used for controlling the lower pressure degree of the lower pressing assembly and the negative pressure of the negative pressing assembly, and the latex sample air permeability tester enables operation repeatability and data to be more real and efficiency to be higher.
Description
Technical Field
The invention relates to a tester, in particular to an air permeability tester.
Background
Zhejiang province is the biggest base of latex products in China, the yield accounts for more than 60% of the whole country, the annual output value exceeds 30 hundred million yuan, the latex products are mainly distributed in the areas of Pingyang, Ruian and the like in Wenzhou city, and the main products mainly comprise latex pillows, latex pads, latex sheets and the like. Present products such as brassiere, pillow, mattress of sponge goods have the not good defect of gas permeability, but latex goods is through the tara bud technology foaming process, generate close numb honeycomb micropore, and these holes make the circulation of air at 360 degrees no dead angles of latex goods, also consequently can be so that the waste heat that the health gived off can be natural give off, dispel the damp comprehensively to guarantee that the user is healthy. However, the detection of the air permeability of the latex products always troubles the detection department, and the necessary detection equipment and related research for the air permeability of the latex exist all the time. The national industry standards HG/T5644 and 2019 latex pillow and latex cushion are still lack of a method and a device for detecting the air permeability of a latex product.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the air permeability tester, which ensures that the operation repeatability and data are more real and the efficiency is higher.
In order to achieve the purpose, the invention provides the following technical scheme: a ventilation tester comprises a mounting frame, a pressing component, a clamping component, a negative pressure component and a central control end, wherein the central control end is electrically connected with the pressing component and the negative pressure component respectively;
the clamping assembly is arranged on the mounting table and is used for clamping a sample;
the negative pressure assembly is arranged in the mounting table and is used for performing airflow negative pressure suction operation on the sample;
the pressing assembly is arranged above the mounting table and used for pre-pressing a sample;
the central control end is used for controlling the lower pressure degree of the pressing component and the negative pressure of the negative pressure component.
In conclusion, the invention has the following beneficial effects: place the latex sample on the mount table and carry out the fixed action to it by the centre gripping subassembly, then make through well accuse end and push down the subassembly and move down until applying certain pre-compaction to the latex sample, simulate human lying pressure, then produce the negative pressure through the negative pressure subassembly, simulate the performance that atmospheric permeation passed latex to reach operation repeatability and data truer, effect that efficiency is higher.
Drawings
FIG. 1 is a schematic view of the internal structure of a gas permeability tester;
fig. 2 is a schematic front view of the air permeability tester.
Reference numerals: 1. a mounting frame; 11. a rack assembly; 12. a head assembly; 13. an installation table; 14. a vent; 2. pressing the assembly; 21. an upper pressure plate; 22. an upper drive member; 3. a clamping assembly; 31. a first clamping plate; 32. a second clamping plate; 4. a negative pressure assembly; 41. a vent pipe; 42. a negative pressure fan; 43. a pipeline fixing seat; 431. a left side seat; 432. a right side seat; 44. connecting a pipeline; 441. an upper pipeline; 442. a lower pipeline; 45. bending the pipe; 46. a pipeline fixing plate; 47. an orifice plate; 48. a rotating member; 5. a central control end; 51. a pressure gauge; 52. a pressure regulating valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1 and 2, in order to achieve the above object, the present invention provides the following technical solutions: a ventilation tester comprises a mounting frame 1, a pressing component 2, a clamping component 3, a negative pressure component 4 and a central control end 5, wherein the central control end 5 is electrically connected with the pressing component 2 and the negative pressure component 4 respectively, and the mounting frame 1 comprises a mounting table 13;
the clamping assembly 3 is arranged on the mounting table 13 and is used for clamping a sample;
the negative pressure assembly 4 is arranged in the mounting table 13 and is used for performing airflow negative pressure suction operation on a sample;
the pressing component 2 is arranged above the mounting table 13 and is used for performing pre-pressing operation on a sample;
the central control end 5 is used for controlling the lower pressure degree of the lower pressure component 2 and the negative pressure of the negative pressure component 4.
According to the design of the invention, an emulsion sample is placed on an installation table 13 and is fixed by a clamping assembly 3, then a pressing assembly 2 moves downwards through a central control end 5 until a certain prepressing is applied to the emulsion sample, the lying pressure of a human body is simulated, then negative pressure is generated by a negative pressure assembly 4 to simulate the performance of atmospheric permeation through emulsion, and an airflow acquisition control system mainly measures the flow of the inner layer and the outer layer of an emulsion product and tests the pressure difference through an upstream sensor and a downstream sensor, so that the effects of more real operation repeatability and data and higher efficiency are achieved.
Furthermore, the effect of the latex product on people with different weights is simulated by adjusting the lower pressure, so that a more efficient verification effect is achieved.
Mounting bracket 1 includes frame subassembly 11 and aircraft nose subassembly 12, pushes down subassembly 2 and sets up on aircraft nose subassembly 12, and negative pressure subassembly 4 sets up in frame subassembly 11.
The pressing assembly 2 comprises an upper pressing plate 21 and an upper driving member 22 for driving the upper pressing plate 21 to move.
This upper driving piece 22 can also be driven by the motor for the cylinder drive, reciprocates through upper driving piece 22 drive top board 21, realizes the effect to the pre-compaction of latex sample. The pressure gauge 51 and the pressure regulating valve 52 are used for adjusting the lower pressure and the negative pressure.
The negative pressure assembly 4 comprises a ventilation pipe 41 and a negative pressure fan 42, a ventilation opening 14 is arranged on the mounting platform 13, one end of the ventilation pipe 41 is connected with the ventilation opening 14, and the other end of the ventilation pipe 41 is connected with the negative pressure fan 42.
The ventilation pipe 41 comprises a pipe fixing seat 43, a connecting pipe 44, an elbow 45 and a pipe fixing plate 46, the pipe fixing plate 46 is connected with the inner wall of the mounting frame 1, and the pipe fixing seat 43, the connecting pipe 44 and the elbow 45 are sequentially connected from top to bottom.
Negative pressure is formed by the negative pressure fan 42, negative pressure is formed by the connecting pipe 44 to the vent 14, and the latex sample originally placed on the mounting table 13 and covering the vent 14 is subjected to negative pressure suction.
The connecting pipe 44 includes an upper pipe 441 and a lower pipe 442, an orifice plate 47 is disposed between the upper pipe 441 and the lower pipe 442, and a rotating member 48 for driving the orifice plate 47 to rotate is disposed in the mounting bracket 1.
The orifice plate 47 is provided with a plurality of negative pressure holes along its circumferential direction, and the plurality of negative pressure holes are arranged in a circumferential equidistant manner.
Calibration of the orifice plate 47: the well plate 47 is placed on a sample stand and tested according to the test protocol. The results obtained are compared with the values on the well plate 47, in order to measure the stability of the instrument and the consistency of the factory data.
When the pore plate 47 is selected to carry out experimental testing, the equipment can intelligently search for a proper pore plate 47;
[ orifice plate 47 selection-manual ] when selecting it to perform experimental testing, the orifice plate 47 can be positioned and tested by itself; when manual operation is selected, 47 numbers of the pore plates (the range is 1-7) can be manually input;
when the orifice plate 47 is not suitable, the lower computer stops reporting errors in the half way of the test, and the orifice plate 47 number needs to be manually reset by the lower computer.
The rotating member 48 may be a rotating motor, the perforated plate 47 is rotated by the rotating motor, different negative pressure holes are corresponding to the upper pipe 441 and the lower pipe 442 through differences, when wind power generated by the negative pressure fan 42 is constant, the smaller the negative pressure hole, the larger the wind strength is, and the larger the negative pressure hole, the smaller the wind strength is, so that not only the negative pressure strength is adjusted by the fan power, but also the negative pressure strength can be adjusted by the size of the negative pressure hole.
Different latex samples correspond to different well plates 47.
The duct fixing seat 43 includes a left seat 431 and a right seat 432, and the left seat 431 and the right seat 432 are both provided with an air inducing slope.
This pipeline fixing base 43's design, thereby the increase face of induced drafting makes induced drafting more stable, and measuring result is more accurate.
The clamping assembly 3 comprises a first clamping plate 31 and a second clamping plate 32, and the first clamping plate 31 and the second clamping plate 32 are respectively connected to the mounting table 13 in a sliding manner.
This centre gripping subassembly 3's design can be for manual design, also can be for automatic design, fixes the latex sample through first grip block 31 and the centre gripping of second grip block 32, and first grip block 31 and second grip block 32 also can design into L shape in addition and are used for conveniently fixing appointed specification and dimension's latex sample.
Further, the upper pressing plate 21 is detachably connected to the upper driving member 22, and different upper pressing plates 21 are selected according to different latex samples.
In addition, the humidity and the temperature of the experimental environment can be regulated and controlled through the central control end 5, so that the influence of the humidity and the temperature on the experiment is eliminated.
The central control end 5 comprises a pressure gauge 51 and a pressure regulating valve 52.
The design benefit of the invention is as follows: 1. the method is used as a main basis for judging the air permeability test performance of the latex product by a third-party detection department. 2. As the basis for evaluation of the latex product by the consumer during purchase. 3. Enterprises can utilize the testing equipment to control the quality and material selection of the latex products. 4. The detection method related to the item development equipment can be promoted to the standard in the future, can promote the technical development of the performance of the latex products in China, and has certain innovative significance. 5. The method widens the research and development road of the latex product technology, and lays a foundation for the detection and research and development of the latex products by other units or individuals. The method plays a good demonstration and reference role in the development of new similar projects.
The air permeability tester fills the blank of the existing latex product air permeability testing method, greatly improves the quality and the capability of latex product testing, can better provide technical support for market supervision related enterprises, provides better testing technical service for latex product enterprises in Zhejiang province, and has important significance for promoting the healthy and rapid development of the industry, and the latex product enterprises and third-party testing organizations purchase the equipment, so that good economic and social benefits can be generated.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a gas permeability tester, characterized by: the device comprises a mounting rack (1), a pressing component (2), a clamping component (3), a negative pressure component (4) and a central control end (5), wherein the central control end (5) is electrically connected with the pressing component (2) and the negative pressure component (4) respectively, and the mounting rack (1) comprises a mounting table (13);
the clamping assembly (3) is arranged on the mounting table (13) and is used for clamping a sample;
the negative pressure assembly (4) is arranged in the mounting table (13) and is used for performing airflow negative pressure suction operation on the sample;
the pressing component (2) is arranged above the mounting table (13) and is used for pre-pressing a sample;
and the central control end (5) is used for controlling the down pressure degree of the down pressing assembly (2) and the negative pressure of the negative pressure assembly (4).
2. A gas permeability tester as claimed in claim 1, wherein: mounting bracket (1) is including having frame subassembly (11) and aircraft nose subassembly (12), push down subassembly (2) and set up on aircraft nose subassembly (12), negative pressure subassembly (4) set up in frame subassembly (11).
3. A gas permeability tester as claimed in claim 1, wherein: the pressing assembly (2) comprises an upper pressing plate (21) and an upper driving piece (22) used for driving the upper pressing plate (21) to move.
4. A gas permeability tester as claimed in claim 1, wherein: negative pressure subassembly (4) are including ventilation pipe (41) and negative pressure fan (42), be provided with vent (14) on mount table (13), the one end and the vent (14) of ventilation pipe (41) are connected, and the other end is connected with negative pressure fan (42).
5. A gas permeability tester according to claim 4, wherein: ventilation pipe (41) are including pipeline fixing base (43), connecting tube (44), return bend (45) and pipeline fixed plate (46), the interior wall connection of pipeline fixed plate (46) and mounting bracket (1), pipeline fixing base (43), connecting tube (44) and return bend (45) are from last to connecting gradually down.
6. A gas permeability tester according to claim 5, wherein: the connecting pipeline (44) comprises an upper pipeline (441) and a lower pipeline (442), a pore plate (47) is arranged between the upper pipeline (441) and the lower pipeline (442), and a rotating piece (48) used for driving the pore plate (47) to rotate is arranged in the mounting rack (1).
7. A gas permeability tester according to claim 6, wherein: the orifice plate (47) is provided with a plurality of negative pressure holes along the circumference, and the negative pressure holes are arranged in a circumferential equidistance mode.
8. A gas permeability tester according to claim 4, wherein: the pipeline fixing seat (43) comprises a left side seat (431) and a right side seat (432), and air inducing inclined planes are arranged on the left side seat (431) and the right side seat (432).
9. A gas permeability tester as claimed in claim 1, wherein: the clamping assembly (3) comprises a first clamping plate (31) and a second clamping plate (32), and the first clamping plate (31) and the second clamping plate (32) are connected to the mounting table (13) in a sliding mode respectively.
10. A gas permeability tester as claimed in claim 1, wherein: the central control end (5) comprises a pressure gauge (51) and a pressure regulating valve (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210120396.8A CN114527049A (en) | 2022-02-07 | 2022-02-07 | Air permeability tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210120396.8A CN114527049A (en) | 2022-02-07 | 2022-02-07 | Air permeability tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114527049A true CN114527049A (en) | 2022-05-24 |
Family
ID=81622325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210120396.8A Pending CN114527049A (en) | 2022-02-07 | 2022-02-07 | Air permeability tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114527049A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713811A (en) * | 2015-03-31 | 2015-06-17 | 广州标际包装设备有限公司 | Air permeability tester |
| CN106226221A (en) * | 2016-08-19 | 2016-12-14 | 通标标准技术服务有限公司安吉分公司 | A kind of mattress breathability detector and using method |
| CN205898633U (en) * | 2016-08-18 | 2017-01-18 | 泉州市美邦仪器有限公司 | Full -automatic air permeability apparatus |
| CN211927579U (en) * | 2020-04-28 | 2020-11-13 | 扬州市高升机械有限公司 | Cushion compliance detection device is used in vehicle seat production |
| CN213181174U (en) * | 2020-09-29 | 2021-05-11 | 江苏江化聚氨酯产品质量检测有限公司 | Sample anchor clamps are used in sponge gas permeability detection |
-
2022
- 2022-02-07 CN CN202210120396.8A patent/CN114527049A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713811A (en) * | 2015-03-31 | 2015-06-17 | 广州标际包装设备有限公司 | Air permeability tester |
| CN205898633U (en) * | 2016-08-18 | 2017-01-18 | 泉州市美邦仪器有限公司 | Full -automatic air permeability apparatus |
| CN106226221A (en) * | 2016-08-19 | 2016-12-14 | 通标标准技术服务有限公司安吉分公司 | A kind of mattress breathability detector and using method |
| CN211927579U (en) * | 2020-04-28 | 2020-11-13 | 扬州市高升机械有限公司 | Cushion compliance detection device is used in vehicle seat production |
| CN213181174U (en) * | 2020-09-29 | 2021-05-11 | 江苏江化聚氨酯产品质量检测有限公司 | Sample anchor clamps are used in sponge gas permeability detection |
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