CN111398123B - Device for detecting microporous breathable material - Google Patents
Device for detecting microporous breathable material Download PDFInfo
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- CN111398123B CN111398123B CN202010268761.0A CN202010268761A CN111398123B CN 111398123 B CN111398123 B CN 111398123B CN 202010268761 A CN202010268761 A CN 202010268761A CN 111398123 B CN111398123 B CN 111398123B
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- 230000007246 mechanism Effects 0.000 claims abstract description 83
- 238000001514 detection method Methods 0.000 claims abstract description 60
- 238000005259 measurement Methods 0.000 claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 10
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- 238000009423 ventilation Methods 0.000 description 9
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- 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
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Abstract
The invention relates to a device for detecting microporous breathable materials, which comprises a gas supply mechanism, a gas pressure adjusting mechanism, a constant pressure detection mechanism and a material clamping mechanism, wherein the gas supply mechanism is connected with the gas pressure adjusting mechanism; the constant-pressure detection mechanism comprises a main control module, a two-position five-way electromagnetic valve, a measurement cylinder, an execution cylinder, an extension sensor and a retraction sensor; the air outlet end of the air supply mechanism is communicated with an air port P of the two-position five-way electromagnetic valve through an air pressure adjusting mechanism; the two-position five-way electromagnetic valve, the extension sensor and the retraction sensor are electrically connected with the main control module, and a piston extension air inlet hole of the measuring cylinder is communicated with an air port A of the two-position five-way electromagnetic valve; a piston of the execution cylinder extends out of an air inlet and is communicated with an air port B of the two-position five-way electromagnetic valve; a trigger component is arranged on the measuring cylinder; an air inlet is formed on the lower base of the material clamping mechanism and is communicated with an air port S of the two-position five-way electromagnetic valve. The invention has the characteristics of simple structure, scientific design, high detection efficiency, high detection precision and the like.
Description
Technical Field
The invention relates to the technical field of breathable material detection equipment, in particular to a device for detecting a microporous breathable material.
Background
The breathable film is one of breathable materials, and the application occasions of the breathable films with different breathability are different. For the problem of how to detect the air permeability of the breathable film, various devices for detecting the breathable film are available on the market, for example, chinese patent application No. 2019100801271, entitled "a rapid detection system and detection method for air permeability of low-permeability film", the rapid detection system for air permeability of low-permeability film of the technical scheme includes an air compressor, an electromagnetic valve, a gas cylinder, a digital pressure controller, a timer and a test cup, the air compressor is communicated with the gas cylinder through an air pipe, the air pipe between the air compressor and the gas cylinder is communicated with an electromagnetic valve a, the gas cylinder is communicated with the test cup through an air pipe, the air pipe between the gas cylinder and the test cup is communicated with an electromagnetic valve b, the digital pressure controller is installed on the mouth of the gas cylinder, the electromagnetic valve a and the electromagnetic valve b are respectively connected with the digital pressure controller through leads, the timer is respectively connected with the electromagnetic valve A, the electromagnetic valve B and the digital pressure controller through leads. When the system is used, the air compressor fills air with pressure higher than one atmosphere into the gas storage bottle, the electromagnetic valve A is closed and the electromagnetic valve B is opened after the gas storage bottle is filled, so that the air in the gas storage bottle is decompressed to the test cup, the time when the air pressure in the gas storage bottle is reduced to one atmosphere can be calculated through the timer, and the air permeability of the air-permeable material can be measured. When the rapid detection system for the air permeability of the low-permeability film detects the air permeable material, the air pressure of air in the air storage bottle is gradually reduced, and the air storage bottle cannot be always decompressed to the test cup under the condition of the same atmospheric pressure, so that the detection efficiency of the detection equipment for the air permeable material is too low, and the accuracy of detecting the air permeability of the air permeable material is not good.
Disclosure of Invention
The invention aims to provide a device for detecting a microporous breathable material, which has the advantages of simple structure, scientific design, high detection efficiency, high detection accuracy and the like.
The technical scheme of the invention is realized as follows: a device for detecting microporous breathable materials comprises a gas supply mechanism and a gas pressure adjusting mechanism, and is characterized by also comprising a constant pressure detection mechanism and a material clamping mechanism; wherein:
the constant-pressure detection mechanism comprises a main control module, a two-position five-way electromagnetic valve, a measurement cylinder, an execution cylinder, an extension sensor and a retraction sensor;
the air outlet end of the air supply mechanism is communicated with the air inlet end of the air pressure adjusting mechanism through an air path;
the two-position five-way electromagnetic valve is electrically connected with the main control module, and a gas port P of the two-position five-way electromagnetic valve is communicated with a gas outlet end of the air pressure adjusting mechanism through a gas path;
the measuring cylinder and the executing cylinder are relatively fixed, a piston rod of the measuring cylinder and a piston rod of the executing cylinder are mutually pressed, and a piston of the measuring cylinder extends out of an air inlet hole and is communicated with an air port A of the two-position five-way electromagnetic valve through an air path;
the piston of the execution cylinder extends out of the air inlet hole and is communicated with an air port B of the two-position five-way electromagnetic valve through an air path;
the extension sensor and the retraction sensor are electrically connected with the main control module; a piston rod of the measuring cylinder is provided with a trigger component, and when the piston rod of the measuring cylinder is completely extended out, the trigger component just moves to the position within the sensing range of the extension sensor; when the piston rod of the measuring cylinder is completely retracted, the trigger component moves to just retract into the inductive range of the position sensor;
the material clamping mechanism comprises a lower base and an upper ventilating seat, when in use, the top surface of the lower base and the bottom surface of the upper ventilating seat are matched to clamp the ventilating material, an air inlet communicated with the top surface of the lower base is formed on the lower base, and the air inlet is communicated with an air port S of the two-position five-way electromagnetic valve through an air path;
when the measuring cylinder stores air, the air port P of the two-position five-way electromagnetic valve is communicated with the air port A, and the air port B of the two-position five-way electromagnetic valve is communicated with the air port R; when the measuring cylinder resets under the action of the execution cylinder to detect the breathable material, the air port B of the two-position five-way electromagnetic valve is communicated with the air port P, and the air port A of the two-position five-way electromagnetic valve is communicated with the air port S.
Further, the air pressure adjusting mechanism comprises a pressure regulating valve and a pressure gauge, the air outlet end of the air supply mechanism is communicated with the air inlet end of the pressure regulating valve through an air path, the air outlet end of the pressure regulating valve is communicated with the air inlet end of the pressure gauge through an air path, and the air outlet end of the pressure gauge is communicated with an air port P of the two-position five-way electromagnetic valve through an air path.
Still further, the constant-pressure detection mechanism further comprises a mounting frame, and the measuring cylinder, the execution cylinder and the two-position five-way electromagnetic valve are all mounted on the mounting frame; stretch to the position sensor, contract the sensor that targets in place and also all install on the mounting bracket, and stretch the position sensor, contract the sensor that targets in place and all be in between measurement cylinder and the actuating cylinder, stretch the cylinder body setting that the position sensor is close to the actuating cylinder, contract the cylinder body setting that the sensor that targets in place is close to the measurement cylinder.
Still further, the top surface of the lower base of the material clamping mechanism is a lower clamping and pressing surface, an air accommodating cavity is formed on the lower clamping and pressing surface, the air inlet is communicated with the air accommodating cavity, and a sealing rubber ring arranged around the edge of the cavity opening of the air accommodating cavity is arranged on the lower base; an upper clamping surface is formed on the bottom surface of the upper ventilating seat, and an air through hole communicated with the bottom surface of the upper ventilating seat is formed on the upper ventilating seat.
The working process of the invention is as follows: when the breathable material is detected, the breathable material is clamped and pressed by the upper breathable seat and the lower base of the clamping mechanism in a matching manner, so that a region to be detected of the breathable material is clamped between the lower clamping and pressing surface of the lower base and the upper clamping and pressing surface of the upper breathable seat; then the gas supply mechanism is started, the pressure of the gas to be detected is obtained by the detection personnel through the adjustment of the gas pressure adjusting mechanism, and the gas pressure of the gas obtained through the adjustment of the gas pressure adjusting mechanism at least exceeds one atmospheric pressure; then the master control module controls a gas port P of the two-position five-way electromagnetic valve to be communicated with a gas port A, and a gas port B of the two-position five-way electromagnetic valve to be communicated with a gas port R, so that a piston rod of the measuring cylinder is pushed to extend out and reset under the action of input detection gas; when the extension sensor detects the trigger component on the piston rod of the measuring cylinder, the extension sensor sends a signal to the main control module, and after the piston rod of the measuring cylinder extends to the position, the piston of the actuating cylinder is tightly attached to the inner wall surface of the cylinder body provided with the piston extension air inlet; the main control module receives a signal of the extension sensor and then controls the two-position five-way electromagnetic valve to perform internal gas circuit switching, so that a gas port B of the two-position five-way electromagnetic valve is communicated with a gas port P, a gas port A of the two-position five-way electromagnetic valve is communicated with a gas port S, at the moment, detected gas in the measuring cylinder is conveyed to the clamping mechanism through the two-position five-way electromagnetic valve to detect the breathable material, gas obtained by the gas supply mechanism through the adjustment of the gas pressure adjusting mechanism is conveyed into the executing cylinder through the switching of the two-position five-way electromagnetic valve, the gas pressure of the gas entering the executing cylinder is consistent with the gas pressure of the detected gas in the measuring cylinder, and a piston of the measuring cylinder is gradually reset under the action of the executing cylinder, so that the gas pressure of the detected gas in the; in the detection process, after the detection gas in the measurement cylinder is completely pushed out, the retraction position sensor detects a trigger component on a piston rod of the measurement cylinder, the retraction position sensor sends a signal to the main control module, the main control module controls the detection process to stop, the main control module can also receive the signal sent by the extension position sensor through calculation, and then the main control module controls the two-position five-way electromagnetic valve to switch the gas path until the period of time of receiving the signal sent by the retraction position sensor is the ventilation detection time of the ventilation material.
The invention has the beneficial effects that: in the process of detecting the breathable material, the detection gas in the measurement cylinder is kept constant in pressure all the time under the action of the execution cylinder, so that the gas conveyed to the clamping mechanism by the measurement cylinder is kept constant in pressure, and the quantitative volume of the measurement cylinder can be measured, so that a detector can obtain the breathable flow of the breathable material under certain pressure by dividing the volume of the measurement cylinder by the breathable detection time, and the breathable material detection device has the advantages of simple structure, scientific design, high detection efficiency, high detection accuracy and the like.
Drawings
FIG. 1 is a schematic diagram of a gas storage state of a measuring cylinder in operation according to an embodiment.
FIG. 2 is a schematic structural view of the embodiment in a state of detecting the air-permeable material during operation.
Fig. 3 is a schematic view of an assembling and disassembling structure of the material clamping mechanism according to the embodiment.
Fig. 4 is a schematic structural view of a lower base in the embodiment.
Fig. 5 is a schematic structural diagram of the measuring cylinder, the executing cylinder, the two-position five-way solenoid valve, the extending position sensor and the retracting position sensor in the embodiment after being mounted on the mounting frame.
Fig. 6 is a schematic structural view of a plurality of material clamping mechanisms mounted on the same fixing frame when the material clamping mechanism is applied to a production line.
Description of reference numerals: 1-an air supply mechanism; 2-an air pressure adjusting mechanism; 21-a pressure regulating valve; 22-pressure gauge; 3-constant pressure detection mechanism; 31-a master control module; 32-two-position five-way solenoid valve; 33-a measuring cylinder; 331-piston extension gas port; 332-piston retract gas port; 34-an actuating cylinder; 341-piston out of intake; 342-piston retract intake; 35-an extension sensor; 36-a retract position sensor; 37-a trigger member; 38-a mounting frame; 4-a material clamping mechanism; 41-lower base; 411-gas inlet; 412-lower nip surface; 413-gas containing cavity; 414-sealing rubber ring; 415-ring groove; 42-upper air permeable seat; 421-gas passing hole; 422-annular boss; 423-cavity; 424-upper nip surface; 43-inner lining plate; 44-a nip cylinder; 5-a fixing frame; 51-an upper fixing frame; 52-lower fixing frame; 53-detection space; 6-breathable material.
Detailed Description
As shown in fig. 1, fig. 2, fig. 3, and fig. 4, the apparatus for detecting a microporous breathable material of the present embodiment includes an air supply mechanism 1 and an air pressure adjusting mechanism 2, wherein the air supply mechanism 1 is an air compressor, and for the purpose of the apparatus for detecting a microporous breathable material, the apparatus for detecting a microporous breathable material further includes a constant pressure detection mechanism 3 and a material clamping mechanism 4; wherein:
the constant-pressure detection mechanism 3 comprises a main control module 31, a two-position five-way electromagnetic valve 32, a measurement cylinder 33, an execution cylinder 34, an extension sensor 35 and a retraction sensor 36;
the air outlet end of the air supply mechanism 1 is communicated with the air inlet end of the air pressure adjusting mechanism 2 through an air path;
the two-position five-way electromagnetic valve 32 is electrically connected with the main control module 31, and a gas port P of the two-position five-way electromagnetic valve 32 is communicated with a gas outlet end of the air pressure adjusting mechanism 2 through a gas path;
the measuring cylinder 33 and the executing cylinder 34 are relatively fixed, a piston rod of the measuring cylinder 33 and a piston rod of the executing cylinder 34 are arranged in a mutually jacking mode, specifically, the end portion of the piston rod of the measuring cylinder 33 is connected with the end portion of the piston rod of the executing cylinder 34, a piston extending air inlet hole 331 of the measuring cylinder 33 is communicated with an air port A of the two-position five-way electromagnetic valve 32 through an air path, and a piston retracting air inlet hole 332 of the measuring cylinder 33 is communicated with the atmosphere;
the piston extending air inlet hole 341 of the execution cylinder 34 is communicated with the air port B of the two-position five-way electromagnetic valve 32 through an air path, and the piston retracting air inlet hole 342 of the execution cylinder 34 is communicated with the atmosphere;
the extension sensor 35 and the retraction sensor 36 are proximity switches, and the extension sensor 35 and the retraction sensor 36 are electrically connected with the main control module 31; a trigger part 37 is arranged on the piston rod of the measuring cylinder 33, and when the piston rod of the measuring cylinder 33 is fully extended, the trigger part 37 just moves to reach the sensing range of the position sensor 35; when the piston rod of the measuring cylinder 33 is fully retracted, the trigger part 37 will move just to be within the sensing range of the retracted position sensor 36;
the material clamping mechanism 4 comprises a lower base 41 and an upper air permeable seat 42, when in use, the top surface of the lower base 41 is matched with the bottom surface of the upper air permeable seat 42 to clamp the air permeable material 6, an air inlet 411 communicated with the top surface of the lower base 41 is formed on the lower base 41, and the air inlet 411 is communicated with an air port S of the two-position five-way electromagnetic valve 32 through an air path;
when the measuring cylinder 33 stores air, the air port P of the two-position five-way electromagnetic valve 32 is communicated with the air port A, and the air port B of the two-position five-way electromagnetic valve 32 is communicated with the air port R; when the measuring cylinder 33 is reset under the action of the execution cylinder 34 to detect the air-permeable material 6, the air port B of the two-position five-way electromagnetic valve 32 is communicated with the air port P, and the air port a of the two-position five-way electromagnetic valve 32 is communicated with the air port S.
In order to make the structure of the air pressure adjusting mechanism 2 more reasonable, as shown in fig. 1 and fig. 2, the air pressure adjusting mechanism 2 includes a pressure regulating valve 21 and a pressure gauge 22, the air outlet end of the air supply mechanism 1 is communicated with the air inlet end of the pressure regulating valve 21 through an air path, the air outlet end of the pressure regulating valve 21 is communicated with the air inlet end of the pressure gauge 22 through an air path, and the air outlet end of the pressure gauge 22 is communicated with the air port P of the two-position five-way solenoid valve 32 through an air path. When in use, a user can adjust the pressure regulating valve 21 and observe the pressure gauge 22 to obtain the required air pressure.
In order to make the structure of the constant pressure detecting mechanism 3 more reasonable, as shown in fig. 5, the constant pressure detecting mechanism 3 further includes a mounting bracket 38, and the measuring cylinder 33, the actuating cylinder 34 and the two-position five-way solenoid valve 32 are all mounted on the mounting bracket 38; the extending position sensor 35 and the retracting position sensor 36 are also mounted on the mounting frame 38, the extending position sensor 35 and the retracting position sensor 36 are both located between the measuring cylinder 33 and the executing cylinder 34, the extending position sensor 35 is arranged close to the cylinder body of the executing cylinder 34, and the retracting position sensor 36 is arranged close to the cylinder body of the measuring cylinder 33. This detect device of micropore ventilative material makes this device of detecting micropore ventilative material assemble more conveniently through will measure cylinder 33, carry out cylinder 34, two-position five-way solenoid valve 32, stretch to the position sensor 35 and contract to the position sensor 36 and install the modularized design on same mounting bracket 38.
In order to make the structure of the clamping mechanism 4 of the apparatus for detecting microporous breathable materials more reasonable, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the top surface of the lower base 41 of the clamping mechanism 4 is a lower clamping and pressing surface 412, an air accommodating cavity 413 is formed on the lower clamping and pressing surface 412, the air inlet 411 is communicated with the air accommodating cavity 413, and a sealing rubber ring 414 arranged around the edge of the cavity opening of the air accommodating cavity 413 is installed on the lower base 41; an upper clamping surface 424 is formed on the bottom surface of the upper air permeable seat 42, and an air through hole 421 communicated with the bottom surface of the upper air permeable seat 42 is formed on the upper air permeable seat. In the detection process, the upper clamping surface 424 of the upper air-permeable seat 42 and the sealing rubber ring 414 clamp the air-permeable material 6 together, so that the edge of the area to be detected of the air-permeable material 6 is tightly pressed against the sealing rubber ring 414 to realize sealing, and therefore, the detection gas in the measurement cylinder 33 can only pass through the air-permeable material 6 to be decompressed after entering the gas accommodating cavity 413 through the two-position five-way electromagnetic valve 32 and the gas inlet 411, and is finally released in the atmosphere through the gas hole 421.
In order to make the structure of the lower base 41 of the material clamping mechanism 4 more reasonable, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, a ring groove 415 arranged around the edge of the mouth of the air accommodating cavity 413 is formed on the lower base 41, and the sealing rubber ring 414 is mounted on the ring groove 415.
In order to avoid deformation of the gas permeable material 6 under the pressure of the detection gas when the gas permeable material 6 is detected, as shown in fig. 1, 2 and 3, an annular boss 422 which is clamped and pressed in cooperation with the sealing rubber ring 414 is formed on the bottom surface of the upper gas permeable seat 42, the bottom surface of the annular boss 422 is the upper clamping surface 424, a concave cavity 423 is formed on the inner circumferential surface of the annular boss 422 in cooperation with the bottom surface of the upper gas permeable seat 42, the concave cavity 423 is communicated with the gas passing hole 421, a lining plate 43 is installed in the concave cavity 423, the lining plate 43 is a gas permeable plate, and the bottom surface of the lining plate 43 is on the same plane as the upper clamping surface 424.
In order to make the structure of the inner lining plate 43 more reasonable, as shown in fig. 3, the inner lining plate 43 is a stainless steel mesh plate, and the stainless steel mesh plate has high rigidity and strength, so that the inner lining plate 43 can ventilate and simultaneously can prevent the inner lining plate 43 from easily deforming under the action of air pressure.
In order to make the installation structure of the clamping mechanism 4 more reasonable, as shown in fig. 3 and fig. 6, the device for detecting the microporous breathable material further comprises a fixing frame 5, the clamping mechanism 4 further comprises a clamping cylinder 44, the fixing frame 5 comprises an upper fixing frame 51 and a lower fixing frame 52, a detection space 53 for the breathable material 6 to pass through is formed between the upper fixing frame 51 and the lower fixing frame 52, the clamping cylinder 44 is fixed on the upper fixing frame 51, the clamping cylinder 44 is electrically connected with the main control module 31, and a piston rod of the clamping cylinder 44 can extend and retract towards the detection space 53; the upper ventilating seat 42 is fixed at the bottom end of a piston rod of the clamping cylinder 44, so that the clamping cylinder 44 can be controlled by the main control module 31 to push the upper ventilating seat 42 to act when the clamping cylinder is used; the lower base 41 is fixed on the lower fixing frame 52, and the lower clamping and pressing surface 412 of the lower base 41 is opposite to the upper clamping and pressing surface 424 of the upper ventilating base 42.
The working process of the device for detecting the microporous breathable material comprises the following steps: as shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, when the apparatus for detecting a microporous breathable material detects a breathable material 6, the breathable material 6 is clamped by the upper breathable seat 42 and the lower base 41 of the clamping mechanism 4, so that the region to be detected of the breathable material 6 is clamped between the lower clamping surface 412 of the lower base 41 and the upper clamping surface 424 of the upper breathable seat 42; then the gas supply mechanism 1 is started, the pressure of the gas to be detected is obtained by the detection personnel through the adjustment of the gas pressure adjusting mechanism 2, and the gas pressure of the gas obtained through the adjustment of the gas pressure adjusting mechanism 2 at least exceeds one atmospheric pressure; then the main control module 31 controls the gas port P of the two-position five-way electromagnetic valve 32 to be communicated with the gas port a, and the gas port B of the two-position five-way electromagnetic valve 32 to be communicated with the gas port R, so that the piston rod of the measuring cylinder 33 is pushed to extend out and reset under the action of the input detection gas; when the extension sensor 35 detects the trigger component 37 on the piston rod of the measurement cylinder 33, the extension sensor 35 sends a signal to the main control module 31, and after the piston rod of the measurement cylinder 33 extends to the position, the piston of the execution cylinder 34 is tightly attached to the inner wall surface of the cylinder body provided with the piston extension air inlet 341; the main control module 31 receives the signal of the extension sensor 35 and then controls the two-position five-way solenoid valve 32 to switch the internal gas path, so that the gas port B of the two-position five-way solenoid valve 32 is communicated with the gas port P, the gas port a of the two-position five-way solenoid valve 32 is communicated with the gas port S, at this time, the detection gas in the measurement cylinder 33 is transmitted to the material clamping mechanism 4 through the two-position five-way electromagnetic valve 32 to detect the air-permeable material 6, and the gas obtained by the gas supply mechanism 1 through the adjustment of the gas pressure adjusting mechanism 2 is switched and conveyed into the execution cylinder 34 through the two-position five-way electromagnetic valve 32, so that the gas pressure of the gas introduced into the actuating cylinder 34 is kept identical with the gas pressure of the detection gas in the measuring cylinder 33, the piston of the measuring cylinder 33 is gradually reset under the action of the actuating cylinder 34, so that the pressure of the detection gas in the measuring cylinder 33 is kept constant throughout the detection of the gas-permeable material 6; in the detection process, after the detection gas in the measurement cylinder 33 is completely pushed out, the retraction position sensor 36 detects the trigger component 37 on the piston rod of the measurement cylinder 33, the retraction position sensor 36 sends a signal to the main control module 31, the main control module 31 controls the detection process to stop, the main control module 31 can calculate the time when the main control module receives the signal sent by the extension position sensor 35, and then controls the two-position five-way electromagnetic valve 32 to switch the gas path until the time when the signal sent by the retraction position sensor 36 is received is the ventilation detection time of the breathable material 6, and the quantitative volume of the measurement cylinder 33 can be determined, so that the detection personnel can obtain the ventilation flow of the breathable material under certain pressure by dividing the volume of the measurement cylinder 33 by the ventilation detection time, and the ventilation flow reflects the ventilation performance of the breathable material, so that the device for detecting the microporous breathable material has a simple structure, Scientific design, high detection efficiency, high detection precision and the like.
A plurality of the microporous breathable material detection devices can be used for simultaneously detecting a plurality of areas of the breathable material 6, as shown in fig. 6, the material clamping mechanisms 4 of a plurality of devices for detecting microporous breathable materials can share the same fixing frame 5, of course, the devices for detecting the microporous breathable materials can also share one air supply mechanism for supplying air, even the constant-pressure detection mechanisms of a plurality of devices for detecting the microporous breathable materials can share one main control module, when in use, the device for detecting the microporous breathable material can be directly applied to a production line for producing the breathable material, the breathable material is wound after passing through the detection space of the upper fixing frame 51 and the lower fixing frame 52, during the detection, a plurality of devices for detecting the microporous breathable material are adopted to detect a plurality of areas on the breathable material, and then the average value of the ventilation flow of the detection areas is calculated to determine the ventilation performance of the breathable material.
Claims (10)
1. The utility model provides a detect device of ventilative material of micropore, includes air feed mechanism and atmospheric pressure adjustment mechanism, its characterized in that: the device also comprises a constant pressure detection mechanism and a material clamping mechanism; wherein:
the constant-pressure detection mechanism comprises a main control module, a two-position five-way electromagnetic valve, a measurement cylinder, an execution cylinder, an extension sensor and a retraction sensor;
the air outlet end of the air supply mechanism is communicated with the air inlet end of the air pressure adjusting mechanism through an air path;
the two-position five-way electromagnetic valve is electrically connected with the main control module, and a gas port P of the two-position five-way electromagnetic valve is communicated with a gas outlet end of the air pressure adjusting mechanism through a gas path;
the measuring cylinder and the executing cylinder are relatively fixed, a piston rod of the measuring cylinder and a piston rod of the executing cylinder are mutually pressed, and a piston of the measuring cylinder extends out of an air inlet hole and is communicated with an air port A of the two-position five-way electromagnetic valve through an air path;
the piston of the execution cylinder extends out of the air inlet hole and is communicated with an air port B of the two-position five-way electromagnetic valve through an air path;
the extension sensor and the retraction sensor are electrically connected with the main control module; a piston rod of the measuring cylinder is provided with a trigger component, and when the piston rod of the measuring cylinder is completely extended out, the trigger component just moves to the position within the sensing range of the extension sensor; when the piston rod of the measuring cylinder is completely retracted, the trigger component moves to just retract into the inductive range of the position sensor;
the material clamping mechanism comprises a lower base and an upper ventilating seat, when in use, the top surface of the lower base and the bottom surface of the upper ventilating seat are matched to clamp the ventilating material, an air inlet communicated with the top surface of the lower base is formed on the lower base, and the air inlet is communicated with an air port S of the two-position five-way electromagnetic valve through an air path;
when the measuring cylinder stores air, the air port P of the two-position five-way electromagnetic valve is communicated with the air port A, and the air port B of the two-position five-way electromagnetic valve is communicated with the air port R; when the measuring cylinder resets under the action of the execution cylinder to detect the breathable material, the air port B of the two-position five-way electromagnetic valve is communicated with the air port P, and the air port A of the two-position five-way electromagnetic valve is communicated with the air port S.
2. The apparatus for detecting microporous breathable material of claim 1, wherein: the air pressure adjusting mechanism comprises an air regulating valve and a pressure gauge, the air outlet end of the air supply mechanism is communicated with the air inlet end of the air regulating valve through an air path, the air outlet end of the air regulating valve is communicated with the air inlet end of the pressure gauge through an air path, and the air outlet end of the pressure gauge is communicated with an air port P of the two-position five-way electromagnetic valve through an air path.
3. The apparatus for detecting microporous breathable material of claim 1, wherein: the constant-pressure detection mechanism also comprises a mounting frame, and the measuring cylinder, the execution cylinder and the two-position five-way electromagnetic valve are all mounted on the mounting frame; stretch to the position sensor, contract the sensor that targets in place and also all install on the mounting bracket, and stretch the position sensor, contract the sensor that targets in place and all be in between measurement cylinder and the actuating cylinder, stretch the cylinder body setting that the position sensor is close to the actuating cylinder, contract the cylinder body setting that the sensor that targets in place is close to the measurement cylinder.
4. The apparatus for detecting microporous breathable material of claim 1, wherein: the top surface of a lower base of the clamping mechanism is a lower clamping surface, an air accommodating cavity is formed on the lower clamping surface, an air inlet is communicated with the air accommodating cavity, and a sealing rubber ring arranged around the edge of a cavity opening of the air accommodating cavity is arranged on the lower base; an upper clamping surface is formed on the bottom surface of the upper ventilating seat, and an air through hole communicated with the bottom surface of the upper ventilating seat is formed on the upper ventilating seat.
5. The apparatus for detecting microporous breathable material of claim 4, wherein: and a ring groove arranged around the edge of the orifice of the air containing cavity is formed on the lower base, and the sealing rubber ring is arranged on the ring groove.
6. The apparatus for detecting microporous breathable material of claim 4, wherein: the bottom surface of the upper ventilating seat is provided with an annular boss which is matched with the sealing rubber ring for clamping, the bottom surface of the annular boss is the upper clamping surface, the inner circumferential surface of the annular boss is matched with the bottom surface of the upper ventilating seat to form a cavity, the cavity is communicated with the air through hole, the cavity is internally provided with an inner lining plate, the inner lining plate is a breathable plate, and the bottom surface of the inner lining plate and the upper clamping surface are positioned on the same plane.
7. The apparatus for detecting microporous breathable material of claim 6, wherein: the lining plate is a stainless steel mesh plate.
8. An apparatus for detecting microporous breathable material according to claim 4, 5, 6 or 7, wherein: the material clamping mechanism further comprises a fixing frame, the fixing frame comprises an upper fixing frame and a lower fixing frame, a detection space for the air-permeable material to pass through is formed between the upper fixing frame and the lower fixing frame, the clamping cylinder is fixed on the upper fixing frame and is electrically connected with the main control module, and a piston rod of the clamping cylinder can stretch towards the detection space; the upper ventilating seat is fixed at the bottom end of a piston rod of the clamping cylinder; the lower base is fixed on the lower fixing frame, and the lower clamping and pressing surface of the lower base is opposite to the upper clamping and pressing surface of the upper breathable base.
9. The apparatus for detecting microporous breathable material of claim 1, wherein: the piston retraction air inlet hole of the measuring cylinder is communicated with the atmosphere; and a piston retraction air inlet hole of the execution cylinder is communicated with the atmosphere.
10. The apparatus for detecting microporous breathable material of claim 1, wherein: the air supply mechanism is an air compressor, and the extending-to-position sensor and the retracting-to-position sensor are both proximity switches.
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| CN202010268761.0A CN111398123B (en) | 2020-04-08 | 2020-04-08 | Device for detecting microporous breathable material |
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| CN111398123B true CN111398123B (en) | 2021-06-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050229679A1 (en) * | 2004-04-16 | 2005-10-20 | Porous Materials, Inc. | Automated clamp-on sample chamber for flow porometry and a method of using same |
| CN203858188U (en) * | 2014-06-03 | 2014-10-01 | 海宁阳光袜业有限公司 | Adjustment positioning mechanism of device for detecting waterproof performance of waterproof socks |
| CN104713811B (en) * | 2015-03-31 | 2018-07-13 | 广州标际包装设备有限公司 | A kind of permeating degree tester |
| CN108362620B (en) * | 2018-01-17 | 2024-03-19 | 常州北埠电子技术有限公司 | Breathable film waterproof test method and device |
| CN108318405A (en) * | 2018-05-05 | 2018-07-24 | 青岛众瑞智能仪器有限公司 | Filter membrane/filter cylinder arresting efficiency and resistance detection device |
| CN109596458B (en) * | 2019-01-28 | 2024-04-30 | 河南核信恒达实业有限公司 | Rapid detection system and detection method for low permeability of permeable membrane |
| CN110618077B (en) * | 2019-09-19 | 2021-12-10 | 东华大学 | Device and method for measuring dynamic air filtering and isolating efficiency of fabric and application |
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