Membrane penetration detection modular jig

Abstract

The utility model discloses a modular jig for membrane penetration detection. The modular jig comprises an upper die assembly and a lower die assembly, after the upper die assembly and the lower die assembly are assembled and combined, the upper die cavity and the lower die cavity jointly form a film detection cavity; a detection medium inlet, a detection medium outlet and a permeable medium inlet are formed in the upper mold plate, the detection medium inlet and the detection medium outlet are respectively communicated with the upper mold cavity, and the permeable medium inlet is communicated with the lower mold cavity; a permeate outlet is formed in the lower mold plate and is communicated with the lower mold cavity; a film cavity sealing groove is formed in the periphery of the film detection cavity, and a film cavity sealing ring used for sealing the film detection cavity is arranged in the film cavity sealing groove. According to the membrane penetration detection modular jig, the upper die assembly and the lower die assembly are combined to form the membrane penetration detection modular jig, a membrane to be detected can be sealed and fastened in the membrane detection cavity of the jig, the independent modular jig is formed, the membrane penetration detection modular jig can be better suitable for various membrane penetration detection equipment, operation steps are reduced, and the operation detection effect of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection equipment instrument technical field, especially a film permeation detection modular fixture. BACKGROUND

[0002] The film material is now very common high polymer material, and the applicable field and scene are more extensive, for example, packaging and protection film and the like. Generally, although the isolation of these high polymer film materials is good, the film material cannot be absolutely isolated due to the thin thickness of the film material, and can still produce certain permeation under certain conditions. For the special application of the film material, especially in some environment with high precision requirement, the special permeability of the film material is required. Therefore, the detection of the permeability of the film material is necessary. There are many methods for the permeability of the film material, and the corresponding equipment and fixtures are different. Usually, the fixture of the film material permeability detection device is a special fixture, and the fixture lacks universality, so that the film material needs to be assembled for many times when the related detection equipment is used for permeability detection, which is not convenient for operation and affects the detection efficiency. Therefore, it is necessary to study and design a modular fixture with better universality, which can be applied to various film permeability related detection devices. SUMMARY

[0003] The utility model discloses a film permeation detection modular fixture, including upper die assembly and lower die assembly, the upper die assembly includes the upper die plate, and the inside middle part of upper die plate is provided with upper die cavity, the lower die assembly includes the lower die plate, and the inside middle part of lower die plate is provided with lower die cavity, after the assembly of upper die assembly with lower die assembly, the upper die cavity and lower die cavity form film detection cavity together, the upper die plate is provided with detection quality import, detection quality export and permeation quality entrance, detection quality import and detection quality export are connected in upper die cavity respectively, and permeation quality entrance is connected in lower die cavity, the lower die plate is provided with permeation quality export, and permeation quality export is connected in lower die cavity, the outer periphery of film detection cavity is provided with film cavity sealing groove, and the film cavity sealing groove is provided with film cavity sealing ring for the sealing of film detection cavity.

[0004] As a further illustration of the utility model, the film cavity sealing groove includes a first film cavity sealing groove and a second film cavity sealing groove, the film cavity sealing ring includes a first film cavity sealing ring and a second film cavity sealing ring respectively arranged in the first film cavity sealing groove and the second film cavity sealing groove, and the first film cavity sealing ring is located on the inner side of the second film cavity sealing ring.

[0005] Further, the diameter of the first film cavity sealing ring is greater than the diameter of the second film cavity sealing ring.

[0006] Further, the detection quality inlet and the detection quality outlet are respectively provided with detection quality sealing rings.

[0007] Further, the upper die plate is provided with an air pressure groove between the first membrane cavity sealing ring and the second membrane cavity sealing ring, the air pressure groove is communicated to the outside of the upper die plate to form an air pressure port, and the air pressure groove is provided with an air pressure ring.

[0008] Further, the air pressure groove is a positive pressure groove, and the air pressure ring has a U-shaped cross section.

[0009] Further, the air pressure groove is a negative pressure groove, and the air pressure ring has an L-shaped cross section.

[0010] Further, the air pressure port is two, and is arranged near the detection quality inlet and the detection quality outlet respectively.

[0011] Further, the air pressure port is further provided with an air port sealing ring, and the air port sealing ring is sleeved with the air pressure port and the adjacent detection quality inlet or detection quality outlet.

[0012] Further, the side surface of the lower die plate is provided with a plurality of positioning grooves.

[0013] The beneficial effects of the utility model are as follows:

[0014] The membrane permeation detection module jig formed by the upper die assembly and the lower die assembly can seal and fasten the to-be-detected membrane in the membrane detection cavity of the jig, forms an independent module jig, can better adapt to various membrane permeation detection equipment devices, reduces operation steps, and improves equipment operation detection effect; the jig structure is provided with multiple sealing structures to ensure sealing effect, has excellent sealing performance, effectively isolates the error influence of the outside of the jig on the permeability of the to-be-detected membrane, and ensures detection result precision. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the upper die assembly structure diagram of the utility model embodiment Figure 1 ;

[0016] Figure 2 It is the upper die assembly structure diagram of the utility model embodiment Figure 2 ;

[0017] Figure 3 It is the lower die assembly structure diagram of the utility model embodiment

[0018] Figure 4 It is the air pressure ring structure diagram of the utility model embodiment

[0019] Figure 5For another embodiment of the utility model air pressure ring structure view.

[0020] Figure 6 For the utility model embodiment upper die assembly and lower die assembly assembly view.

[0021] Reference signs: upper die plate 1, upper die cavity 2, lower die plate 3, lower die cavity 4, detection quality import 5, detection quality export 6, penetrant import 7, first membrane cavity sealing groove 8, second membrane cavity sealing groove 9, first membrane cavity sealing ring 10, second membrane cavity sealing ring 11, detection quality sealing ring 12, air pressure groove 13, air pressure port 14, air pressure ring 15, air port sealing ring 16, positioning groove 17, penetrant export 18. DETAILED DESCRIPTION

[0022] Embodiment:

[0023] The utility model embodiment is described in detail below, obviously, the described embodiment is only a part of the utility model embodiment, is not all embodiment.

[0024] In the description of the utility model, need understanding is, the orientation or position relation that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" indicate is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation configuration and operation, therefore can not be understood as the restriction of the utility model.

[0025] As the drawing Figures 1-6As shown, a film permeation detection module jig includes an upper mold assembly and a lower mold assembly, the upper mold assembly includes an upper mold plate 1, and an upper mold cavity 2 is arranged in the middle of the inner side of the upper mold plate 1; the lower mold assembly includes a lower mold plate 3, and a lower mold cavity 4 is arranged in the middle of the inner side of the lower mold plate 3; the upper mold cavity 2 and the lower mold cavity 4 jointly form a film detection cavity after the upper mold assembly and the lower mold assembly are assembled and combined; the upper mold plate 1 is provided with a detection substance inlet 5, a detection substance outlet 6 and a permeation substance inlet 7, the detection substance inlet 5 and the detection substance outlet 6 are respectively communicated with the upper mold cavity 2, and the permeation substance inlet 7 is communicated with the lower mold cavity 4; the lower mold plate 3 is provided with a permeation substance outlet 18, and the permeation substance outlet 18 is communicated with the lower mold cavity 4; a film cavity sealing groove is arranged along the outer periphery of the film detection cavity, and a film cavity sealing ring for sealing the film detection cavity is arranged in the film cavity sealing groove. The film permeation detection module jig formed by the combination of the upper mold assembly and the lower mold assembly can seal and fasten the film to be detected in the film detection cavity of the jig, form an independent modular jig, better adapt to various film permeation detection equipment devices, reduce operation steps, and improve the detection effect of the equipment operation; the jig structure is provided with multiple sealing structures to ensure the sealing effect, has excellent sealing performance, effectively isolates the error influence of the external environment of the jig on the permeability of the film to be detected, and ensures the detection result precision.

[0026] The main operation process principle of the film permeation detection module jig is to place the film to be detected into the film detection cavity of the jig, assemble the upper mold plate 1 and the lower mold plate 3, and connect and fix the upper mold assembly and the lower mold assembly through positioning pins to form an independent sealed modular jig, the internal film detection cavity is divided into an upper mold cavity 2 and a lower film cavity 4 by the film to be detected, and the airtightness between the upper mold cavity 2 and the lower film cavity 4 is ensured under the extrusion and sealing action of the upper mold assembly and the lower mold assembly on the film to be detected. The film permeation detection module jig with the film to be detected assembled can be placed into a corresponding film detection or processing device for detection or processing. For example, when the permeation pretreatment of the film is needed, the film permeation detection module jig can be placed into a film pretreatment device, the permeation substance inlet 7 is connected to the permeation substance source of the film pretreatment device, the permeation substance is input and kept at constant pressure (constant temperature) for a set time to make it reach the permeation balance, and the permeation pretreatment of the film is completed. When the permeability of the film needs to be detected, the film permeation detection module jig can be placed into a film permeability detection device, the detection substance inlet 5 is connected to the detection source of the film permeability detection device, the detection substance outlet 6 is connected to the collection and analysis module of the film permeability detection device, after the film reaches the permeation dynamic balance, the film permeability detection device can input the detection substance from the detection substance inlet 5 and collect the mixed gas from the detection substance outlet 6, and the permeability of the sample is calculated through the test area and test time.

[0027] As a feasible implementation, referring to the drawings, the film cavity sealing groove in the embodiment includes a first film cavity sealing groove 8 and a second film cavity sealing groove 9, the film cavity sealing ring includes a first film cavity sealing ring 10 and a second film cavity sealing ring 11 arranged in the first film cavity sealing groove 8 and the second film cavity sealing groove 9 respectively, and the first film cavity sealing ring 10 is located inside the second film cavity sealing ring 11. The purpose of arranging the first film cavity sealing ring 10 is mainly to reduce the outflow of the penetrant and the detection substance in the film detection cavity, so as to ensure the detection accuracy of the film permeability. The purpose of arranging the second film cavity sealing ring 11 is mainly to reduce the penetration of the external air into the film detection cavity, so as to reduce the error influence and also be conducive to ensuring the detection accuracy of the film permeability. As preferred, in the embodiment, the diameter of the first film cavity sealing ring 10 is greater than the diameter of the second film cavity sealing ring 11.

[0028] Referring to the drawings, in the embodiment, the detection substance inlet 5 and the detection substance outlet 6 are respectively provided with a detection substance sealing ring 12. When the film permeability detection device is used for permeability detection, the detection substance sealing ring 12 at the detection substance inlet 5 can reduce the mixing of the external air into the input detection substance, and the detection substance sealing ring 12 at the detection substance outlet 6 can reduce the mixing of the external air into the collected mixed gas sample, so as to effectively reduce the error influence and ensure the accuracy and precision of the film permeability detection.

[0029] In the preferred embodiment, as shown in the drawings, in the embodiment, a gas pressure groove 13 is further arranged on the upper mold plate 1, the gas pressure groove 13 is located between the first film cavity sealing ring 10 and the second film cavity sealing ring 11, the gas pressure groove 13 is communicated to the external gas pressure port 14 of the upper mold plate 1, and a gas pressure ring 15 is arranged in the gas pressure groove 13. In actual application, under the structure arrangement, the positive and negative pressure systems can be connected through the gas pressure port 14 to form a positive pressure zone between the first film cavity sealing ring 10 and the second film cavity sealing ring 11, so as to be conducive to reducing the error influence. When the gas pressure groove 13 is a positive pressure groove, as shown in the drawings, the gas pressure ring 15 has a U-shaped cross section, which can be used for testing the equal-pressure method permeability detection instrument; when the gas pressure groove 13 is a negative pressure groove, the gas pressure ring 15 has an L-shaped cross section, which can be used for testing the differential pressure method permeability detection. The gas pressure groove 13 is provided with a hole, in which a catalyst or a drying agent can be placed. For example, when an oxygen catalyst is placed, the leaked oxygen from the second sealing ring can be further removed, so as to ensure the precision of the test result; for example, when a drying agent is placed, the leaked water vapor from the second sealing ring can be further removed, so as to ensure the precision of the test result. In addition, it is easy to understand that in some embodiments, the sealing effect of the film detection cavity can also be increased by smearing sealing grease between the first film cavity sealing ring 10 and the second film cavity sealing ring 11, so as to ensure the processing and detection effect of the measured film.

[0030] In the preferred embodiment, as shown in the drawings, in the present embodiment, the air pressure ports 14 are two, which are respectively arranged adjacent to the detection substance inlet 5 and the detection substance outlet 6. The air pressure ports 14 are further provided with air port sealing rings 16, which are sleeved on the air pressure ports 14 and the adjacent detection substance inlet 5 or detection substance outlet 6.

[0031] In the present embodiment, as shown in the drawings, the side surface of the lower mold plate 3 is provided with a plurality of positioning grooves 17. In some practical applications, positioning structures can be arranged in the corresponding film detection or processing device corresponding to the positioning grooves 17, so that when the two are used together, the film permeation detection module jig can be quickly and accurately positioned at the correct position, ensuring the accurate performance of the device detection and processing action.

[0032] The above only describes the preferred embodiments of the present application, but cannot be understood as a limitation on the claims. The present application is not limited to the above embodiments, and the specific structure can be changed. In short, any changes made within the protection scope of the independent claims of the present application are within the protection scope of the present application.

Claims

1. A membrane permeation test modular fixture, characterized by: The upper die assembly comprises an upper die plate, and a middle part of the upper die plate is provided with an upper die cavity; the lower die assembly comprises a lower die plate, and a middle part of the lower die plate is provided with a lower die cavity; the upper die cavity and the lower die cavity jointly form a film detection cavity after the upper die assembly and the lower die assembly are assembled together; the upper die plate is provided with a detection substance inlet, a detection substance outlet and a permeation substance inlet, the detection substance inlet and the detection substance outlet are respectively communicated with the upper die cavity, and the permeation substance inlet is communicated with the lower die cavity; the lower die plate is provided with a permeation substance outlet, and the permeation substance outlet is communicated with the lower die cavity; a membrane cavity sealing groove is arranged along the outer periphery of the film detection cavity, and a membrane cavity sealing ring for sealing the film detection cavity is arranged in the membrane cavity sealing groove.

2. The membrane permeation test module of claim 1, wherein: The membrane cavity sealing groove comprises a first membrane cavity sealing groove and a second membrane cavity sealing groove, the membrane cavity sealing ring comprises a first membrane cavity sealing ring and a second membrane cavity sealing ring arranged in the first membrane cavity sealing groove and the second membrane cavity sealing groove respectively, and the first membrane cavity sealing ring is located on the inner side of the second membrane cavity sealing ring.

3. The membrane permeation test module of claim 2, wherein: The diameter of the first membrane cavity sealing ring is greater than the diameter of the second membrane cavity sealing ring.

4. The membrane permeation test module of claim 1, wherein: Detection substance sealing rings are arranged at the detection substance inlet and the detection substance outlet respectively.

5. The membrane permeation test module of claim 2, wherein: An air pressure groove is arranged on the upper die plate, the air pressure groove is located between the first membrane cavity sealing ring and the second membrane cavity sealing ring, the air pressure groove is communicated to the outside of the upper die plate to form an air pressure port, and an air pressure ring is arranged in the air pressure groove.

6. The membrane permeation test module of claim 5, wherein: The air pressure groove is a positive pressure groove, and the air pressure ring has a U-shaped cross section.

7. The membrane permeation test module of claim 5, wherein: The air pressure groove is a negative pressure groove, and the air pressure ring has an L-shaped cross section.

8. The membrane permeation test module fixture of claim 5, wherein: There are two air pressure ports, which are arranged near the detection substance inlet and the detection substance outlet respectively.

9. The membrane permeation test module of claim 8, wherein: The air pressure port is further provided with an air port sealing ring, and the air port sealing ring is sleeved with the air pressure port and the detection substance inlet or the detection substance outlet adjacent to the air pressure port.

10. The membrane permeation test module of claim 1, wherein: The side surface of the lower die plate is provided with a plurality of positioning grooves.

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