Detection device for air permeability test of new material

Abstract

The invention relates to the technical field of membrane air permeability detection devices, in particular to a detection device for a new material air permeability test, which comprises a push rod group, a mounting plate fixedly mounted on the upper side of the push rod group, a test mechanism arranged on the lower side of the mounting plate, a detection mechanism arranged on the side surface of the test mechanism, and a fixing mechanism arranged inside the test mechanism. Driving mechanisms are arranged on the side surfaces of the fixing mechanisms; the test mechanism comprises guide covers, a first connecting pipe and a second connecting pipe are arranged on the side surfaces of the guide covers, and a third connecting pipe and a fourth connecting pipe are arranged on the side surfaces of the other group of guide covers; the detection mechanism comprises a detection set arranged on the side face of the guide cover. By arranging the test mechanism and the detection mechanism, different air permeability tests can be correspondingly carried out according to release films made of different materials, and test operation can be carried out on different areas of the release films during test, so that the test detection effect and accuracy of the release films made of different materials are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of membrane air permeability detection devices, in particular to a detection device for air permeability testing of new materials. Background Art

[0002] With the development of society, the application of release film is becoming more and more extensive. Release film is a thin film with separation properties on the surface. It mainly plays the role of isolation, protection and anti-adhesion. The air permeability of release film will affect its performance in many application scenarios. For example, in the packaging of electronic components, if the air permeability of the release film is too strong, moisture and oxygen in the air may enter the interior of the package, causing oxidation and corrosion damage to the electronic components; and in some special application scenarios that require air permeability, such as the release film used in medical dressings, appropriate air permeability is necessary, which can help the wound maintain a suitable humidity environment and promote healing;

[0003] Therefore, the existing release film is made of various materials, and the existing air permeability test of the release film is to test and detect it through the existing air permeability instrument. Due to the difference in materials, the release film needs to be tested for different air permeability and water permeability performances, and the existing device cannot effectively meet the test and detection needs. In addition, liquids (such as water, colored liquids, etc.) and gases (such as oxygen, nitrogen, etc.) are used in the existing test, and the existing device does not centrally collect and discharge the liquids and gases, which can easily cause the liquid to flow to other components and affect the use, or the gas to flow into the air and be inhaled by people, causing physical discomfort. For this reason, we propose a new material air permeability test device. Summary of the invention

[0004] In order to overcome the technical problems existing in the above-mentioned prior art, the present invention provides a detection device for testing the air permeability of new materials.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a push rod group, a mounting plate is fixedly mounted on the upper side of the push rod group, a test mechanism is arranged on the lower side of the mounting plate, a detection mechanism is arranged on the side of the test mechanism, a fixing mechanism is arranged inside the test mechanism, and a driving mechanism is arranged on the side of the fixing mechanism;

[0006] The test mechanism includes a guide cover, a first connecting pipe and a second connecting pipe are arranged on the side of the guide cover, and a third connecting pipe and a fourth connecting pipe are arranged on the side of another group of guide covers;

[0007] The detection mechanism comprises a detection group arranged on the side of the guide cover, the side of the detection group is fixedly connected with a first fixed tube, the inside of the first fixed tube is provided with a connection block, the side of the connection block is fixedly installed with a first detection rod, and the side of the connection block is fixedly installed with a second detection rod;

[0008] The fixing mechanism comprises a clamping plate, a spray plate is arranged on the side of the clamping plate, an adjusting plate is arranged inside the clamping plate, a guide tube is arranged on the upper side of the adjusting plate, a blocking block is arranged on the side of the guide tube, and a second fixing tube is arranged on the other side of the guide tube;

[0009] The driving mechanism comprises an electric rotating table, an electric clamping claw is arranged on the upper side of the electric rotating table, and a restraining block is arranged on the side of the electric clamping claw.

[0010] Furthermore, the test mechanism includes two groups of guide covers arranged on the lower side of the mounting plate, a first guide tube is fixedly installed on the side of the guide cover, a first connecting tube is fixedly connected to the side of the first guide tube, a second connecting tube is fixedly connected to the side of the first guide tube, another group of guide covers is fixedly installed on the side of the second guide tube, a third connecting tube is fixedly connected to the side of the second guide tube, and a fourth connecting tube is fixedly connected to the side of the second guide tube.

[0011] Furthermore, the fixing mechanism includes two sets of clamps arranged between the guide covers, the spray plate is movably installed on the inner side of the clamp, the sides of the clamp and the spray plate are respectively fixedly installed with a first sealing ring and a second sealing ring, a connecting cavity is opened on the side of the spray plate, an inner cavity is opened inside the clamp, and the adjustment plate is arranged inside the clamp.

[0012] Furthermore, the fixing mechanism also includes a guide groove opened on the upper side of the splint, a constraint groove opened on the bottom wall of the inner cavity, a slot opened on the side wall of the inner cavity, a guide tube movably installed inside the slot, a constraint rod fixedly installed on the lower side of the guide tube, and a guide block fixedly installed on the lower side of the constraint rod.

[0013] Furthermore, the fixing mechanism also includes a blocking block arranged on the side of the guide tube, a reset torsion spring is arranged on the side of the blocking block, a trigger group is arranged on the inner side of the guide tube, a second fixed tube is fixedly installed on the inner wall of the groove, a push-pull rod is fixedly installed on the side of the second fixed tube, and a sealing block is fixedly sleeved on the side of the second fixed tube.

[0014] Furthermore, the fixing mechanism also includes a linkage cavity opened on the side of the splint, a linkage rod is arranged inside the linkage cavity, an elastic block is fixedly connected between the side of the linkage rod and the inner wall of the linkage cavity, an installation groove is opened on the side of the splint, a sealing plate is fixedly installed on the two inner walls of the installation groove, and a deformation ring is fixedly installed on the inner wall of the installation groove.

[0015] Furthermore, the driving mechanism includes an electric turntable arranged on the side of the push rod group, a first electric push rod is vertically arranged on the upper side of the turntable of the electric turntable, a second electric push rod is horizontally arranged on the upper side of the first electric push rod, a damping rod is vertically fixedly installed on the side of the turntable of the electric turntable, and an electric clamp is arranged on the side of the second electric push rod.

[0016] Furthermore, the driving mechanism also includes an installation cavity opened on the side of the electric clamping jaw clamping block, a battery block is fixedly installed inside the installation cavity, a third electric push rod is fixedly installed on the inner wall of the installation cavity, and the constraint block is fixedly installed on the output end of the third electric push rod.

[0017] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0018] 1. The present invention can perform different air permeability tests on release films made of different materials by setting up a testing mechanism and a detection mechanism, and can also perform test operations on release films of different area sizes during the test, thereby ensuring the test detection effect and accuracy of release films made of different materials.

[0019] 2. The present invention can realize semi-automatic operation during release film testing by setting a fixing mechanism and a driving mechanism, reduce complex manual operations, and realize simple operation. In addition, during the release film test, the sealing of each component can be guaranteed, thereby improving the detection effect.

[0020] 3. The present invention sets a fixing mechanism. By default, the guide tube is inserted into the connection cavity to limit the spray plate. At this time, the blocking block is attached to the side of the guide tube under the elastic force of the reset torsion spring, which ensures the limit of the spray plate and the accuracy of the detection.

[0021] After the test, the guide tube slides to the side of the connection cavity. At this time, the push-pull rod pushes the trigger group to squeeze the side of the blocking block to rotate it, so that the reset torsion spring deforms and connects the guide tube, so that the slot and the connection cavity are connected. After the connection, the air flow and water flow can be connected and guided through the installation groove, so that the liquid and gas after the test are concentrated and discharged, avoiding the liquid and gas flowing into the gas component position after the test, which will affect the human body and the machine;

[0022] Before testing, the guide tube slides out of the internal position of the connecting cavity. At this time, the push-pull rod still pushes the trigger group. After the spray plate loses its limit, it can be replaced with specifications of different inner hole diameters for use. The spray plates can be replaced separately with simple up and down operations without the need for unnecessary operations.

[0023] 4. The present invention sets a first sealing ring, a second sealing ring, a sealing plate and a deformation ring. During the clamping plate inspection, the first sealing ring and the second sealing ring are both attached to the side of the release film. The double sealing operation can ensure the sealing when the release film is clamped. In addition, when the guide cover slides into the installation groove, the sealing plate is deformed and attached to the side of the guide cover to play a sealing role. The deformation ring is further squeezed and deformed to make the sealing plate more closely attached to the side of the guide cover to improve the sealing. In this way, the sealing operation between the components is ensured, the test effect is improved and liquid and gas leakage is avoided.

[0024] 5. The present invention sets a driving mechanism. The first electric push rod drives the second electric push rod to lift and lower. The damping rod then stretches itself to play a damping support. The second electric push rod pushes and pulls the electric clamp. The electric turntable can adjust the rotation angle of the first electric push rod and the damping rod to achieve three-way movement of the electric clamp. This satisfies the multi-directional movement operation of the driving mechanism on the fixed mechanism, realizes automatic loading and unloading operations, and personnel only need to be at the loading position, reducing the contact between personnel and moving parts and ensuring the safety protection of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the guide cover of the present invention;

[0027] Figure 3 is a schematic cross-sectional structure diagram of a push rod assembly of the present invention;

[0028] Figure 4 It is a schematic diagram of the explosion structure of the detection mechanism of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the fixing structure of the present invention;

[0030] Figure 6 It is a schematic diagram of a partial explosion structure of the fixing structure of the present invention;

[0031] Figure 7 It is an exploded schematic diagram of the peripheral structure of the guide tube of the present invention;

[0032] Figure 8 It is an exploded schematic diagram of the peripheral structure of the sealing plate of the present invention;

[0033] Fig. 9 For the present invention Figure 3 A schematic diagram of the enlarged structure at B;

[0034] Fig.10 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0035] Fig.11 It is a structural schematic diagram of the driving mechanism of the present invention;

[0036] Fig.12 It is a schematic diagram of the partial explosion structure of the driving mechanism of the present invention.

[0037] Among them: 1. Push rod group; 11. Mounting plate; 2. Test mechanism; 21. Guide cover; 22. First guide tube; 23. First connecting tube; 24. Second connecting tube; 25. Second guide tube; 26. Third connecting tube; 27. Fourth connecting tube; 3. Detection mechanism; 31. Detection group; 32. First fixed tube; 33. Connecting block; 34. First detection rod; 35. Second detection rod; 4. Fixing mechanism; 41. Clamp; 411. First sealing ring; 42. Spray plate; 421. Second sealing ring; 422. Connecting cavity; 43. Inner cavity; 44. Adjustment plate; 441. Guide groove; 442. Approx. Beam groove; 45, slot; 451, guide tube; 452, constraint rod; 453, guide block; 454, blocking block; 455, reset torsion spring; 456, trigger group; 457, second fixed tube; 458, push-pull rod; 459, sealing block; 46, linkage cavity; 461, linkage rod; 462, elastic block; 47, mounting groove; 471, sealing plate; 472, deformation ring; 5, driving mechanism; 51, electric turntable; 52, first electric push rod; 53, second electric push rod; 54, damping rod; 55, electric clamp; 56, mounting cavity; 57, battery block; 58, third electric push rod; 59, constraint block. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0039] Example: Figure 1 As shown, a new material air permeability test device comprises a push rod group 1, the push rod group 1 is composed of two groups of vertical electric push rods, a mounting plate 11 is fixedly mounted on the upper side of the push rod group 1, a test mechanism 2 capable of performing different tests on the membrane is arranged on the lower side of the mounting plate 11, a detection mechanism 3 capable of corresponding tests is arranged on the side of the test mechanism 2, a fixing mechanism 4 capable of clamping the sealing membrane is arranged inside the test mechanism 2, and a driving mechanism 5 capable of cooperating with the clamping and moving thereof is arranged on the side of the fixing mechanism 4;

[0040] The test mechanism 2 can be used to perform corresponding air permeability test operations on different types of release films;

[0041] like Figure 2 and Figure 3As shown, the test mechanism 2 includes two groups of guide covers 21 mirror-imaged at the lower side of the mounting plate 11, and the two groups of guide covers 21 are respectively fixedly mounted on the side of the mounting plate 11 and the ground through a rectangular frame, the guide cover 21 is a funnel-shaped round cover, a first guide pipe 22 is fixedly mounted on the side of the guide cover 21 close to the mounting plate 11, and the first guide pipe 22 penetrates the mounting plate 11 and is fixed on its side, the first guide pipe 22 is a round pipe with a hollow side, a first connecting pipe 23 is fixedly connected to the side of the first guide pipe 22 away from the guide cover 21, and the other end of the first connecting pipe 23 is fixedly connected to the external water supply module, a second connecting pipe 24 is fixedly connected to the side of the first guide pipe 22, and the other end of the second connecting pipe 24 is fixedly connected to the external air supply and air pressure pump module, and a second guide pipe 25 is fixedly mounted on the side of the guide cover 21 away from the mounting plate 11, The second guide tube 25 is a round tube with a hollow side. A third connecting tube 26 is fixedly connected to the side of the second guide tube 25 away from the guide cover 21, and the other end of the third connecting tube 26 is fixedly connected to the external vacuum pump module. A fourth connecting tube 27 is fixedly connected to the side of the second guide tube 25, and the other end of the fourth connecting tube 27 is also fixedly connected to the external vacuum pump module. The first connecting tube 23, the second connecting tube 24, the third connecting tube 26 and the fourth connecting tube 27 are round tubes with electric control valves on the side. Specifically, the push rod group 1 can drive the mounting plate 11 to make the upper guide cover 21 and the lower guide cover 21 close to each other, and the first connecting tube 23 can be used for water supply, the third connecting tube 26 can be used for vacuuming and draining and exhausting operations, and the second connecting tube 24 and the fourth connecting tube 27 can be used for oxygen supply and pressure adjustment operations.

[0042] The detection mechanism 3 can be used to perform corresponding detection on different test operations, and the air permeability test data can be obtained through the detection;

[0043] like Figure 3 and Figure 4As shown, the detection mechanism 3 includes a detection group 31 arranged on the side of the guide cover 21. The detection group 31 is a combination of a pressure sensor, a display and a control panel. A first fixed tube 32 is fixedly connected to the side of the detection group 31 and the first fixed tube 32 penetrates into the inside of the guide cover 21 and is fixed on the side thereof. The first fixed tube 32 is a circular tube. A connecting block 33 is arranged inside the first fixed tube 32 and the connecting block 33 is electrically connected to the side of the detection group 31 through an electric wire. The connecting block 33 is a numerical processing module. The first detection block 33 is fixedly installed on the side of the connecting block 33. Rod 34, the first detection rod 34 is a cylindrical rod integrated with the flow sensor, and a second detection rod 35 is fixedly installed on the side of the connecting block 33 corresponding to the position of the first detection rod 34, and the second detection rod 35 is a cylindrical rod integrated with the oxygen content sensor. The above sensor models are not limited here; specifically, the airflow or water flow can be guided to the pressure sensor on the side of the detection group 31 through the first fixed pipe 32 for pressure detection, the first detection rod 34 can detect the flow rate of the airflow and water flow, and the second detection rod 35 can detect the oxygen content of the gas;

[0044] The fixing mechanism 4 can be used to quickly clamp the release film, and different size area tests can be performed according to the needs. The sealing performance during the test can be improved by cooperating with the test mechanism 2.

[0045] like Figures 5 to 10As shown, the fixing mechanism 4 includes two sets of clamping plates 41 mirror-set between the guide cover 21, the clamping plate 41 is a circular ring plate with an "L"-shaped cross section, a spray plate 42 is movably mounted on the inner side of the clamping plate 41, the spray plate 42 is a circular ring plate, and the spray plate 42 has models with different inner holes, and a first sealing ring 411 and a second sealing ring 421 are respectively fixedly mounted on the side where the clamping plate 41 and the spray plate 42 are close to each other, and the first sealing ring 411 and the second sealing ring 421 are circles made of rubber, and connecting holes that penetrate the spray plate 42 are equidistantly opened on the side of the spray plate 42. The connecting cavity 422 is a cylindrical groove, an inner cavity 43 is opened inside the clamping plate 41, and the inner cavity 43 is a circular ring cavity. An adjusting plate 44 is arranged at a position corresponding to the inner cavity 43 inside the clamping plate 41, and the adjusting plate 44 is movably installed inside the clamping plate 41. The adjusting plate 44 is a circular ring plate. Guide grooves 441 are equidistantly opened on the upper side of the clamping plate 41 corresponding to the position of the inner cavity 43. The guide grooves 441 are arc grooves. A restraining groove 442 that passes through the clamping plate 41 to the adjusting plate 44 is opened on the bottom wall of the inner cavity 43 corresponding to the position of the connecting cavity 422. The constraint groove 442 is a rectangular groove. A groove 45 penetrating the clamping plate 41 is provided on the side wall of the inner cavity 43 corresponding to the connecting cavity 422. The groove 45 is a cylindrical groove. A guide cylinder 451 is movably installed inside the groove 45. The guide cylinder 451 is a hollow cylinder. In the default state, the guide cylinder 451 is inserted into the connecting cavity 422. A constraint rod 452 is fixedly installed on the lower side of the guide cylinder 451 and the constraint rod 452 is movably installed inside the constraint groove 442. The constraint rod 452 is a rectangular rod. The constraint rod 452 is fixedly installed on the lower side of the constraint rod 452. A guide block 453 is provided and movably installed inside the guide groove 441. The guide block 453 is a cylindrical block. Specifically, when the adjusting plate 44 rotates inside the clamping plate 41, the guide block 453 slides inside the guide groove 441. At the same time, the restraining rod 452 slides inside the restraining groove 442 and slides accordingly. The restraining rod 452 drives the guide tube 451 to slide inside the slot 45. The first sealing ring 411 and the second sealing ring 421 can play a side sealing role when clamping the release film.

[0046] The side of the guide cylinder 451 close to the spray plate 42 is provided with a blocking block 454, and the blocking block 454 is rotatably installed on the side of the guide cylinder 451 through a circular shaft. The blocking block 454 is a circular block made of rubber. Reset torsion springs 455 are symmetrically arranged on the side of the blocking block 454, and the reset torsion springs 455 are fixedly connected to the side of the circular shaft. The blocking block 454 can be elastically driven to fit the side of the guide cylinder 451 through the reset torsion springs 455. A trigger group 456 is arranged on the inner side of the guide cylinder 451. The trigger group 456 is composed of a circular rod and a rectangular block movably sleeved on the side thereof. The rectangular block inside the trigger group 456 is fixedly installed on the inner side of the guide cylinder 451. A second fixed tube 457 is fixedly installed on the inner wall of the slot 45. The second fixed tubes 457 on the sides of the two groups of splints 41 are arranged in a mirror image. A push-pull rod 458 is fixedly installed on the side of the second fixed tube 457 close to the guide cylinder 451, and the push-pull rod 458 fits the side of the trigger group 456. The pull rod 458 is an "L"-shaped rod, and a sealing block 459 is fixedly sleeved on the side of the second fixed tube 457 at the side position of the side clamp 41. The sealing block 459 is a circular ring block made of rubber. Specifically, when the guide tube 451 is inserted into the connection chamber 422 by default, it limits the spray plate 42. At this time, the blocking block 454 is sealed on the side of the guide tube 451 under the elastic force of the reset torsion spring 455; the guide tube 451 slides to the side position of the connection chamber 422, and the push-pull rod 458 pushes the trigger group 456 to squeeze the side of the blocking block 454 to rotate it, so that the reset torsion spring 455 is deformed and connected to the guide tube 451, so that the slot 45 and the connection chamber 422 are connected. After the connection, the airflow and water flow can be connected and guided through the installation groove 47; the guide tube 451 slides out of the internal position of the connection chamber 422, and the push-pull rod 458 still pushes the trigger group 456. After the spray plate 42 loses the limit, it can be replaced with specifications with different inner hole diameters for use;

[0047] A linkage cavity 46 is provided on the side of the splint 41 and the linkage cavity 46 runs through the splint 41 to the position of the adjustment plate 44. The linkage cavity 46 is a rectangular cavity. A linkage rod 461 is provided inside the linkage cavity 46 and the linkage rod 461 is fixedly installed on the side of the adjustment plate 44. The linkage rod 461 is a rectangular rod. An elastic block 462 is symmetrically fixedly connected between the side of the linkage rod 461 and the inner wall of the linkage cavity 46. The elastic block 462 is a continuous "S"-shaped block made of spring steel. A mounting groove 47 is provided on the side away from the splint 41. The mounting groove 47 is a circular groove. A sealing plate 471 is fixedly installed on the two inner walls of the mounting groove 47 in a mirror-image manner. The sealing plate 471 is a folded cross-section. The elastic rubber material circular ring plate has a deformation ring 472 fixedly mounted on the inner wall of the mounting groove 47 in a mirror image, and the deformation ring 472 is fitted on the side of the sealing plate 471. The deformation ring 472 is an elastic rubber material circular ring with a hollow interior. Specifically, the elastic block 462 pushes the linkage rod 461 to rotate and reset the adjustment plate 44 to maintain the default state. When the guide cover 21 is close, the guide cover 21 is pushed and slid into the mounting groove 47 to squeeze and fix the clamping plate 41. At the same time, the sealing plate 471 is deformed and fitted on the side of the guide cover 21 to seal. The deformation ring 472 is further squeezed and deformed to make the sealing plate 471 fit more closely on the side of the guide cover 21 to improve the sealing performance.

[0048] The driving mechanism 5 can be used to automatically clamp the fixing mechanism 4 and can also cooperate with the replacement operation of the components;

[0049] like Figures 10 to 12 As shown, the driving mechanism 5 includes an electric turntable 51 arranged on the side of the push rod group 1, a first electric push rod 52 is vertically arranged on the upper side of the turntable of the electric turntable 51, and the first electric push rod 52 is fixedly installed on the side of the electric turntable 51 through a connecting piece, a second electric push rod 53 is horizontally arranged on the upper side of the first electric push rod 52, and a U-shaped sleeve is fixedly sleeved on the side of the second electric push rod 53 and fixedly installed on the output end of the first electric push rod 52 through a connecting piece, and damping rods 54 are equidistantly vertically fixedly installed on the side of the turntable of the electric turntable 51, and the other end of the damping rod 54 is fixed by a connecting piece It is connected to the side of the second electric push rod 53, and an electric clamp 55 is provided on the side of the second electric push rod 53, and the electric clamp 55 is fixedly installed on the side of the output end of the second electric push rod 53 through a connecting piece; specifically, the first electric push rod 52 can drive the second electric push rod 53 to perform lifting operations, and at the same time, the damping rod 54 will self-stretch to play a damping support, and the second electric push rod 53 can push and pull the electric clamp 55, and the set electric turntable 51 can adjust the rotation angle of the first electric push rod 52 and the damping rod 54 to realize the three-way movement of the electric clamp 55;

[0050] The side of the electric clamping jaw 55 clamping block close to the clamping plate 41 is provided with an installation cavity 56, and the installation cavity 56 is a rectangular cavity. A battery block 57 is fixedly installed inside the installation cavity 56, and a charging hole is provided on the inner wall of the installation cavity 56 corresponding to the battery block 57. The battery block 57 is a rechargeable rectangular battery. A third electric push rod 58 is fixedly installed on the inner wall of the installation cavity 56, and the third electric push rod 58 is electrically connected to the side of the battery block 57 through electric contact. The battery block 57 supplies power to the third electric push rod 58. A constraint block 59 is fixedly installed at the output end of the third electric push rod 58, and the constraint block 59 is movably installed inside the installation cavity 56, and the constraint block 59 is an "L"-shaped block; when the electric clamping jaw 55 clamping block is inserted into the linkage cavity 46, the constraint block 59 is inserted into the linkage cavity 46 corresponding to the linkage rod 461 position, the third electric push rod 58 slightly pulls the constraint block 59 to make it fit against the side position of the linkage rod 461. At this time, the guide cylinder 451 is in the default state, so that the electric clamp 55 is limited when inserted into the linkage cavity 46, and the clamp 41 can be stably maintained on the side of the clamping block of the electric clamp 55; the third electric push rod 58 then pulls the constraint block 59 to make it push the adjustment plate 44 to rotate to a certain position, which can trigger the guide cylinder 451 to slide to the side position of the connecting cavity 422, so that the connecting cavity 422, the slot 45 and the mounting slot 47 are connected to guide the water flow and air flow; the third electric push rod 58 completely pulls the constraint block 59 to make it push the adjustment plate 44 to continue to rotate, which can trigger the guide cylinder 451 to slide out of the internal position of the connecting cavity 422, so that the spray plate 42 can be replaced and the clamp 41 can remain stable.

[0051] Working principle:

[0052] Before the test: According to the release film selection for different material usage scenarios, the program selection of the corresponding test method is selected. At this time, the electric clamp 55 clamp block is inserted into the linkage cavity 46, and the third electric push rod 58 slightly pulls the constraint block 59 to fit the side of the linkage rod 461, so that the clamp plate 41 is limited to the side of the clamp block of the electric clamp 55. The electric clamp 55 drives the two groups of clamp plates 41 away from each other through the clamp block, and the electric turntable 51 drives the electric clamp 55 to drive the clamp plate 41 to rotate to the loading position. When different areas need to be tested, the third electric push rod 58 pulls the constraint block 59 to squeeze the linkage rod 461 to rotate the adjustment plate 44, and the guide cylinder 451 completely slides out of the connecting cavity 42 2 is not restricted inside, and the spray plate 42 can be replaced with different specifications of inner apertures. Then, the third electric push rod 58 pushes the constraint block 59 to reset. Under the elastic force of the elastic block 462, the linkage rod 461 drives the adjustment plate 44 to reset, so that the guide tube 451 is inserted into the connection cavity 422 to limit and fix it; the cut release film sample is placed on the side of the clamping plate 41, and the two groups of clamping plates 41 are fitted together by the clamping block of the electric clamping claw 55. The release film is clamped by the first sealing ring 411 and the second sealing ring 421 to ensure sealing, and the two groups of second fixed tubes 457 are also sealed and connected together through the sealing block 459;

[0053] During the test: the clamping plate 41 is rotated to the test position by the electric turntable 51, and then the clamping plate 41 is driven to move bidirectionally to the side position of the guide cover 21 by the first electric push rod 52 and the second electric push rod 53, and the push rod group 1 drives the upper guide cover 21 to approach the lower guide cover 21, and the first electric push rod 52 is synchronously lowered. At this time, the upper and lower guide covers 21 are respectively inserted into the installation groove 47, and the sealing plate 471 is attached to the side of the guide cover 21 under the deformation force of the deformation ring 472, so that the guide cover 21 and the clamping plate 41 are in a sealed state;

[0054] The second connecting tube 24 and the side parts of the fourth connecting tube 27 are used to perform equal pressure operation on both sides of the release film. One side of the second connecting tube 24 is supplied with oxygen, and one side of the fourth connecting tube 27 is supplied with carrier gas. The second detection rod 35 is used to detect the concentration comparison of the gas, and the first detection rod 34 is used to detect the gas flow comparison. After a period of time, the air permeability is obtained according to the concentration change curve and gas flow and other parameters according to the calculation formula, so that the air permeability of the release film can be tested;

[0055] The side of the release film is injected with water through the side part of the first connecting tube 23, the side part of the second connecting tube 24 is used to pressurize the water, and the side part of the third connecting tube 26 is used to evacuate the water, so as to improve the detection speed. The liquid flow is detected by the first detection rod 34, and after moving for a period of time, the parameters are changed according to the liquid flow, and the water permeability is obtained according to the calculation formula. The side part of the third connecting tube 26 is used to drain and exhaust the water synchronously, so that the water permeability of the release film can be detected;

[0056] After the test: the third electric push rod 58 pulls the constraint block 59 to drive the linkage rod 461 to rotate the adjustment plate 44, and the guide tube 451 slides to the side position of the connecting cavity 422. At this time, the blocking block 454 is squeezed open by the trigger group 456, and the connecting cavity 422, the slot 45 and the mounting slot 47 are connected through the guide tube 451. The side parts of the second connecting tube 24 are pressurized, and the water, oxygen and carrier gas on the side of the release film are collected and drained through the side parts of the third connecting tube 26. Then the mounting plate 11 drives the upper guide cover 21 away from the lower guide cover 21, and the electric clamp 55 is moved in three directions to the loading position through the electric turntable 51, the first electric push rod 52 and the second electric push rod 53. The tested release film is removed and replaced, and the test operation can continue.

[0057] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A detection device for testing the air permeability of a new material, comprising a push rod group (1), a mounting plate (11) being fixedly mounted on the upper side of the push rod group (1), a test mechanism (2) being arranged on the lower side of the mounting plate (11), a detection mechanism (3) being arranged on the side of the test mechanism (2), a fixing mechanism (4) being arranged inside the test mechanism (2), and a driving mechanism (5) being arranged on the side of the fixing mechanism (4); Features: The test mechanism (2) comprises a guide cover (21), a first connecting pipe (23) and a second connecting pipe (24) are arranged on the side of the guide cover (21), and a third connecting pipe (26) and a fourth connecting pipe (27) are arranged on the side of another set of guide covers (21); The detection mechanism (3) comprises a detection group (31) arranged on the side of the guide cover (21), a first fixed tube (32) is fixedly connected to the side of the detection group (31), a connecting block (33) is arranged inside the first fixed tube (32), a first detection rod (34) is fixedly installed on the side of the connecting block (33), and a second detection rod (35) is fixedly installed on the side of the connecting block (33); The fixing mechanism (4) comprises a clamping plate (41), a spray plate (42) is arranged on the side of the clamping plate (41), an adjusting plate (44) is arranged inside the clamping plate (41), a guide tube (451) is arranged on the upper side of the adjusting plate (44), a blocking block (454) is arranged on the side of the guide tube (451), and a second fixing tube (457) is arranged on the other side of the guide tube (451); The driving mechanism (5) comprises an electric rotating table (51), an electric clamping jaw (55) is arranged on the upper side of the electric rotating table (51), and a restraining block (59) is arranged on the side of the electric clamping jaw (55).

2. A new material air permeability test device according to claim 1, characterized in that: The test mechanism (2) comprises two groups of guide covers (21) arranged on the lower side of the mounting plate (11), a first guide tube (22) being fixedly mounted on the side of the guide cover (21), a first connecting tube (23) being fixedly connected to the side of the first guide tube (22), a second connecting tube (24) being fixedly connected to the side of the first guide tube (22), a second guide tube (25) being fixedly mounted on the side of the other group of guide covers (21), a third connecting tube (26) being fixedly connected to the side of the second guide tube (25), and a fourth connecting tube (27) being fixedly connected to the side of the second guide tube (25).

3. A new material air permeability testing device according to claim 1, characterized in that: The fixing mechanism (4) comprises two groups of clamping plates (41) arranged between the guide cover (21); the spray plate (42) is movably mounted on the inner side of the clamping plate (41); a first sealing ring (411) and a second sealing ring (421) are fixedly mounted on the sides of the clamping plate (41) and the spray plate (42) respectively; a connecting cavity (422) is provided on the side of the spray plate (42); an inner cavity (43) is provided inside the clamping plate (41); and an adjusting plate (44) is arranged inside the clamping plate (41).

4. A new material air permeability testing device according to claim 3, characterized in that: The fixing mechanism (4) further comprises a guide groove (441) provided on the upper side of the clamping plate (41), a restraining groove (442) provided on the bottom wall of the inner cavity (43), a slot (45) provided on the side wall of the inner cavity (43), a guide tube (451) movably mounted inside the slot (45), a restraining rod (452) fixedly mounted on the lower side of the guide tube (451), and a guide block (453) fixedly mounted on the lower side of the restraining rod (452).

5. A new material air permeability testing device according to claim 4, characterized in that: The fixing mechanism (4) further comprises a blocking block (454) arranged on the side of the guide tube (451), a return torsion spring (455) is arranged on the side of the blocking block (454), a trigger group (456) is arranged on the inner side of the guide tube (451), a second fixing tube (457) is fixedly mounted on the inner wall of the slot (45), a push-pull rod (458) is fixedly mounted on the side of the second fixing tube (457), and a sealing block (459) is fixedly sleeved on the side of the second fixing tube (457).

6. A new material air permeability testing device according to claim 5, characterized in that: The fixing mechanism (4) further comprises a linkage cavity (46) provided on the side of the clamping plate (41), a linkage rod (461) being arranged inside the linkage cavity (46), an elastic block (462) being fixedly connected between the side of the linkage rod (461) and the inner wall of the linkage cavity (46), a mounting groove (47) being provided on the side of the clamping plate (41), a sealing plate (471) being fixedly mounted on the two inner walls of the mounting groove (47), and a deformation ring (472) being fixedly mounted on the inner wall of the mounting groove (47).

7. A new material air permeability testing device according to claim 6, characterized in that: The driving mechanism (5) comprises an electric turntable (51) arranged on the side of the push rod group (1), a first electric push rod (52) is vertically arranged on the upper side of the turntable of the electric turntable (51), a second electric push rod (53) is horizontally arranged on the upper side of the first electric push rod (52), a damping rod (54) is vertically fixedly installed on the side of the turntable of the electric turntable (51), and an electric clamp (55) is arranged on the side of the second electric push rod (53).

8. A new material air permeability testing device according to claim 7, characterized in that: The driving mechanism (5) further comprises a mounting cavity (56) provided on the side of the clamping block of the electric clamping jaw (55), a battery block (57) being fixedly mounted inside the mounting cavity (56), a third electric push rod (58) being fixedly mounted on the inner wall of the mounting cavity (56), and a restraining block (59) being fixedly mounted on the output end of the third electric push rod (58).

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